Technical Field
[0001] The present disclosure pertains to deployable coverings for objects and, more particularly,
to canopy devices, systems, and methods, that enable selectable degrees of deployment
and provide a fully folded configuration useful with vehicles and in connection with
boat lifts.
BACKGROUND
Description of the Related Art
[0002] Canopies for objects, such as vehicles, are known. Typical canopies include a frame
and a cover to provide a protected space under which to store an object or park a
vehicle. The canopy frame typically extends vertically and horizontally to span an
area such that when an object is placed under the canopy, the cover provides protection
for the object from the sun, rain, or snow, among other environmental conditions.
However, fixed or permanent canopies suffer from a number of drawbacks or disadvantages.
[0003] For example, the permanent shade created by fixed canopies is frowned upon in many
jurisdictions because of the negative impact to surrounding ecosystems. Further, permanent
canopies are not aesthetically pleasing and are typically viewed negatively by homeowners
or neighbors. These problems are exacerbated when fixed canopies block waterfront
views, or other scenic landscape views. Moreover, designing canopy covers and frames
to handle snow and wind loads requires use of expensive and bulky parts, which increases
cost for the consumer. Because fixed canopies are suspended above an area, most fixed
canopies also do not provide adequate protection against environmental conditions
impinging on the object or vehicle underneath the canopy from different angles, such
as from the side. Such canopies are also not adjustable, meaning that the area covered
by the canopy is fixed based on the size and arrangement of the frame, which limits
use applications.
[0004] Some of the above issues are alleviated with removable canopy covers, but such canopy
covers are typically formed from heavy material and are burdensome or cumbersome for
the owner to manipulate on and off of the frame. Other solutions include covers that
extend laterally toward the support surface to provide protection to the sides of
an object under the canopy, but such solutions do not address the environmental or
aesthetic concerns mentioned above and are also not adjustable. As such, current canopies
suffer from a number of disadvantages, as do available proposed solutions.
BRIEF SUMMARY
[0005] A first implementation of a system formed in accordance with the present disclosure
includes a fixed support having a first end and a second end opposite the first end;
a movable boom coupled to the fixed support and structured to rotate relative to the
fixed support; an actuator coupled to the fixed support and the movable boom, the
actuator configured to rotate the movable boom from a first position proximate the
first end of the fixed support to a second position proximate the second end of the
fixed support; a first link coupled to the fixed support and the movable boom, the
first link structured to rotate relative to the fixed support and the movable boom;
a second link coupled to the fixed support and the movable boom, the second link structured
to rotate relative to the fixed support and the movable boom; and a first strut coupled
to the first link and the second link, the first strut structured to rotate relative
to the first link and the second link and further structured to slide relative to
the second link.
[0006] The first implementation may further include a first frame coupled to the movable
boom, the first frame structured to rotate relative to the movable boom, a support
link coupled to the first frame and the movable boom, the support link structured
to rotate relative to the first frame and the movable boom, and a cover coupled to
the fixed boom, the first frame, and the first strut; a second frame coupled to the
fixed support, and a wire lattice coupled to the support and the second frame, the
wire lattice structured to receive the cover in response to the movable boom being
in the first position; a plurality of second struts coupled to the movable boom and
structured to rotate relative to the movable boom, the plurality of second struts
further structured to be proximate one another in response to the movable boom being
in the first position and further structured to be spaced apart from one another in
response to the movable boom being in the second position; a support rod coupled between
one of the plurality of second struts and the first link; a plurality of third struts
coupled to the fixed support and structured to be proximate one another in response
to the movable boom being in the first position, and further structured to be spaced
from one another in response to the movable boom being in the second position; and
a bracket coupled to the fixed support, the movable boom coupled to the bracket and
structured to rotate relative to the bracket, a first lever arm coupled to the bracket
and structured to rotate relative to the bracket, the actuator coupled to the first
lever arm and structured to rotate relative to the first lever arm, and a second lever
arm coupled to the first lever arm and coupled to the movable boom, the second lever
arm structure to rotate relative to the first lever arm and the movable boom.
[0007] A second implementation of a system formed in accordance with the present disclosure
is provided that includes a fixed support having a first end and a second end; a movable
boom coupled to the fixed support; an actuator coupled to the movable boom and the
fixed support, the actuator configured to manipulate the movable boom between a storage
configuration and a deployed configuration, wherein in the storage configuration,
the movable boom is proximate the first end of the fixed support and in the deployed
configuration, the movable boom is proximate the second end of the fixed support;
and a first plurality of struts coupled to the fixed support and the movable boom,
the first plurality of struts structured to rotate relative to the fixed support and
the movable boom, the first plurality of struts structured to be proximate one another
in response to the movable boom being in the storage configuration and spaced from
one another in response to the movable boom being in the extended configuration.
[0008] The second implementation may further include a first link coupled to the fixed support
and the movable boom, the first link structured to rotate relative to the fixed support
and the movable boom, and a second link coupled to the fixed support and the movable
boom and spaced from the first link, the second link structured to rotate relative
to the movable boom and the fixed support; each strut of the first plurality of struts
being coupled to the first link and the second link and structured to rotate relative
to the first link and the second link, each of the first plurality of struts further
structured to slide relative to the second link; the first link including a first
arm coupled to the fixed support and structured to rotate relative to the fixed support
and a second arm coupled to the movable boom and structured to rotate relative to
the movable boom, the system further comprising a first hinge having a first plate
coupled to the first arm of the first link and a second plate coupled to the second
arm of the first link, the first hinge including barrels coupled to the first and
second plates and structured to receive a pin to enable rotational motion of the first
arm relative to the second arm of the first link; a plurality of second struts coupled
to the movable boom and structured to rotate relative to the movable boom, and a plurality
of third struts coupled to the fixed support, a first one of the plurality of third
struts fixed relative to the fixed support and at least one second one of the plurality
of third struts structured to rotate relative to the fixed support; a support post
coupled to and extending from the fixed support, the support post structured to contact
the movable boom in response to the movable boom being in the deployed configuration;
a support frame assembly coupled to the movable boom and structured to rotate relative
to the movable boom, and a cover coupled to the fixed support and the support frame
assembly; and a frame coupled to the fixed support, and a lattice coupled to the frame
and the fixed support, the lattice structured to receive the cover in response to
the movable boom being in the storage configuration.
[0009] A third implementation of a retractable canopy for a watercraft lift is provided
in accordance with the present disclosure to include a fixed boom extending from the
watercraft lift; a movable boom supported for rotational movement by the watercraft
lift; an actuator operatively connected to the watercraft lift and the movable boom
to rotate the movable boom between first and second positions relative to the watercraft
lift, wherein the movable boom is spaced from the fixed boom when in the first position
and is adjacent to the fixed boom when in the second position; at least one first
linkage extending between the fixed boom and the movable boom; at least one second
linkage extending between the fixed boom and the movable boom; at least one first
strut rotatably supported by the at least one first linkage and slidably supported
by the at least one second linkage; at least one second strut rotatable relative to
the fixed boom; at least one third strut supported by the movable boom; and a cover
secured at a first end to the fixed boom and at a second end to the movable boom;
whereby when the movable boom is in the first position, the fixed boom, the movable
boom, the at least one first strut, the at least one second strut, and the at least
one third strut support the cover in an extended configuration above a watercraft
area; and when the movable boom is in the second position, the fixed boom, the movable
boom, the at least one first strut, the at least one second strut, and the at least
one third strut support the cover in a retracted configuration adjacent to the fixed
strut.
[0010] The third implementation may further include a support post coupled to the watercraft
lift, wherein in the first position, the movable boom contacts the support post; a
support rod coupled between one of the at least one third struts and one of at the
least one first linkages; at least one first strut rotatably supported by the at least
one second linkage; and each of the at least one first linkage and each of the at
least one second linkage including a first portion coupled to the fixed boom and structured
to rotate relative to the fixed boom and a second portion coupled to the movable boom
and structured to rotate relative to the movable boom, the first portion coupled to
the second portion, wherein the first portion and the second portion are structured
to rotate relative to one another.
[0011] A fourth implementation of a rectractable canopy system is provided in accordance
with the present disclosure to include a fixed support; a movable boom coupled to
the fixed support and structured to rotate relative to the fixed support between a
first position where the movable boom is proximate the fixed support and a second
position where the movable boom is spaced from the fixed support; and a first frame
coupled to the movable boom and structured to rotate in response to rotation of the
movable boom between a first location proximate the movable boom to a second location
spaced from the movable boom.
[0012] The fourth implementation may further include the first location of the first frame
corresponding to the first position of the movable boom and the second location of
the first frame corresponding to the second position of the movable boom; an actuator
coupled to the fixed support and the movable boom, the actuator configured to rotate
the movable boom from the first position to the second position; a support link coupled
to the first frame and the movable boom, the support link structured to rotate relative
to the movable boom; a cover disposed on the movable boom and the first frame; a second
frame coupled to the fixed support and structured to receive the cover in response
to the movable boom being in the first position; and the cover including a first portion
from the fixed support to the movable boom and a second portion from the movable boom
to the first frame, the second portion of the cover structured to overlap the first
portion of the cover in response to the movable boom being in the first position.
[0013] A fifth implementation of a retractable canopy system formed in accordance with the
present disclosure is provided, the fifth implementation including a fixed support
having a first end and a second end; a movable boom coupled to the fixed support and
structured to move between a storage configuration and a deployed configuration, wherein
in the storage configuration, the movable boom is proximate the first end of the fixed
support and in the deployed configuration, the movable boom is proximate the second
end of the fixed support; and a support frame assembly coupled to the movable boom
and structured to rotate relative to the movable boom in response to rotation of the
movable boom between the storage configuration and the deployed configuration.
[0014] The fifth implementation may further include: a link coupled to the fixed support
and the movable boom, the link structured to rotate relative to the fixed support
and the movable boom; a strut coupled to the link and structured to rotate relative
to the link; the support frame assembly including a support link coupled to the movable
boom and structured to rotate relative to the movable boom and a frame coupled to
the movable boom and the first support link and structured to rotate relative to the
movable boom; a frame coupled to the fixed support, and a wire lattice coupled to
the frame and the fixed support; a cover coupled to at least one of the movable boom
and the support frame assembly, the wire lattice structured to receive the cover in
response to the movable boom being in the storage configuration; and the cover including
a first portion and a second portion, wherein the second portion overlays the first
portion in response to the movable boom being in the storage configuration.
[0015] A sixth implementation of a retractable canopy system is also provided in accordance
with yet a further aspect of the present disclosure, the sixth implementation including
a fixed support; a movable support structured to rotate relative to the fixed support
between a first position and a second position; and a first frame coupled to the movable
support and structured to rotate between a first configuration and a second configuration
in response to rotation of the movable support, wherein the first configuration of
the first frame corresponds to the first position of the movable support and the second
configuration of the first frame corresponds to the second position of the movable
support.
[0016] The sixth implementation may further include a cover coupled to the movable support,
the movable support configured to manipulate the cover between a storage configuration
corresponding to the first position of the movable boom and a deployed configuration
corresponding to the second position of the movable boom; the cover including a first
portion and a second portion from the movable boom to the first frame, the second
portion disposed on the first portion in response to the cover being in the deployed
configuration; a second frame coupled to the fixed support and structured to receive
the cover in the storage configuration; a link coupled to the fixed support and the
movable boom and structured to rotate relative to the fixed support, and a strut coupled
to the link and structured to rotate relative to the link; and the fixed support configured
to be coupled to a watercraft lift and the first frame configured to be proximate
a rear longitudinal edge of a watercraft on the watercraft lift in the second configuration.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0017] The foregoing and other features and advantages of the present disclosure will be
more readily appreciated as the same become better understood from the following detailed
description when taken in conjunction with the accompanying drawings. In the drawings,
identical reference numbers identify similar elements or acts. In some figures, the
structures are drawn exactly to scale. In other figures, the sizes and relative positions
of elements in the drawings are not necessarily drawn to scale. For example, the sizes,
shapes of various elements and angles may be enlarged and positioned in the figures
to improve drawing legibility.
FIGS. 1A-1D are axonometric views of an implementation of a retractable canopy for
a boat lift in accordance with the present disclosure illustrating the retractable
canopy manipulated from an extended configuration to a retracted configuration.
FIGS. 2A-2C are axonometric views of an alternative implementation of a retractable
canopy for a boat lift in accordance with the present disclosure illustrating a movable
boom of the retractable canopy manipulated from a storage configuration to a deployed
configuration.
FIGS. 3A-3C are side cut-away views of the retractable canopy of FIGS. 2A-2C illustrating
a cover of the retractable canopy manipulated from a storage configuration to a deployed
configuration.
FIGS. 4A-4C are axonometric cut-away views of an actuator of the retractable canopy
of FIGS. 2A-2C illustrating the actuator manipulated from an extended configuration
to a retracted configuration.
FIG. 5 is an axonometric cut-away view of a coupling between a fixed boom and a third
plurality of struts of the retractable canopy of FIGS. 2A-2C.
FIGS. 6A-6C are side cut-away views of a first plurality of struts of the retractable
canopy of FIGS. 2A-2C illustrating translation of the first plurality of struts during
deployment of the movable boom.
FIG. 7 is an axonometric cut-away view of a coupling between a first link and a second
link of the retractable canopy of FIGS. 2A-2C.
FIG. 8 is an axonometric cut-away view of a coupling between a second plurality of
struts and the movable boom of the retractable canopy of FIGS. 2A-2C.
FIG. 9 is an axonometric cut-away view of a connection between first and second arms
of the first plurality of struts of FIGS. 7A-7B.
DETAILED DESCRIPTION
[0018] The present disclosure is generally directed to foldable or retractable canopies
with a movable boom relative to a fixed boom, and an actuator for manipulating the
movable boom between a storage configuration and a deployed configuration. The following
description will proceed with respect to a specific implementation of a foldable canopy
for a watercraft lift. However, it is to be appreciated that the devices, systems,
methods, and concepts presented herein can be applied to canopies for other types
of vehicles as well and, as such, the present disclosure is not limited to retractable
canopies for watercraft lifts.
[0019] FIGS. 1A-1D depict operation of a first implementation of a support structure for
a retractable canopy of the present disclosure as used in connection with an example
boat lift system. A canopy member, typically a flexible sheet of weather resistant
flexible material, is supported by the support structure over the boat when the support
structure is fully open. When the support structure is fully retracted, the canopy
member is folded.
[0020] More specifically, FIGS. 1A-1D are perspective views of an implementation of a retractable
canopy 20 for a watercraft lift 22. The retractable canopy 20 includes a fixed boom
24 extending from the watercraft lift 22. A movable boom 26 is supported on the watercraft
lift 22 to enable rotational movement of the movable boom 26 relative to the watercraft
lift 22. An actuator 28 (shown in FIG. 1C) is operatively connected to the watercraft
lift 22 and the movable boom 26 to rotate the movable boom 26 between a first position
shown in FIG. 1A and a second position shown in FIG. 1B. In the first position shown
in FIG. 1A, the movable boom 26 is spaced from the fixed boom 24. In the second position,
the movable boom 26 is adjacent to the fixed boom 24.
[0021] The retractable canopy 20 further includes at least one first linkage 30 extending
between the fixed boom 24 and the movable boom 26 and at least one second linkage
32 extending between the fixed boom 24 and the movable boom 26. At least one first
strut 34 is rotatably supported by the at least one first linkage 30 and slidably
supported by the at least one second linkage 32, as further described herein. In one
implementation, the retractable canopy 20 includes at least one second strut 36 rotatable
relative to the fixed boom 24 and at least one third strut 38 supported by the movable
boom 26. A cover 40 is secured at a first end 42 to the fixed boom 24 and at a second
end 44 to the movable boom 26.
[0022] When the movable boom 26 is in the first position, the cover 40 is supported in an
extended configuration above a watercraft area (e.g. area of boat 46) by the fixed
boom 24, the movable boom 26, the at least one first strut 34, the at least one second
strut 36, and the at least one third strut 38 as shown in FIG. 1A. When the movable
boom 26 is in the second position, the cover 40 is supported in a retracted configuration
adjacent to the fixed boom 24, the movable boom 26, the at least one first strut 34,
the at least one second strut 36, and the at least one third strut 38, as shown in
FIG. 1D.
[0023] In one implementation, the retractable canopy 20 further includes a support post
48 coupled to the watercraft lift 22. When the movable boom 26 is in the first position,
the movable boom 26 contacts the support post 48, as best shown in FIG. 1A. Further,
the retractable canopy 20 includes a support rod 50 coupled between one of the at
least one third struts 38 and one of the at least one first linkages 30. Preferably,
the at least one first strut 34 is also rotatably supported by the at least one second
linkage 32. In yet a further implementation, each of the at least one first linkage
30 and each of the at least one second linkage 30 include a first portion 52 coupled
to the fixed boom 24 and structured to rotate relative to the fixed boom 24 and a
second portion 54 coupled to the movable boom 26 and structured to rotate relative
to the movable boom, the first portion 52 coupled to the second portion 54, wherein
the first portion 52 and the second portion 54 are structured to rotate relative to
each other.
[0024] FIGS. 2A-2C illustrate a second implementation of a folding canopy system 100 in
various stages of deployment. FIG. 2A illustrates the canopy system 100 in a folded
or storage configuration, FIG. 2B illustrates the canopy system 100 in a partially
or semi-deployed configuration, and FIG. 2C illustrates the canopy system 100 in a
fully deployed configuration.
[0025] With reference to FIGS. 2A-2C, the canopy system 100 is coupled to a watercraft lift
102. The watercraft lift 102 includes fixed supports 104, which may be referred to
herein as supports, support rails, a support frame, or a support assembly. In the
illustrated implementations, the canopy system 100 is coupled to the fixed supports
104 of the watercraft lift 102. In this implementation, there are two fixed supports
104 on opposite sides of the watercraft lift 102. However, in other implementations,
the fixed supports 104 may be a single fixed support 104, such as a support frame
that is part of the watercraft lift 102. The fixed supports 104 each include a first
end 106 and a second end 108 opposite the first end 106. In one implementation, the
first end 106 is a forward or front end and the second end 108 is an aft or rear end.
[0026] As shown more clearly in FIGS. 2B and 2C, the canopy system 100 includes a fixed
boom 110 coupled to the fixed supports 104 at the first end 106 of the fixed supports
104. The fixed boom 110 may, in some implementations, be referred to as part of the
fixed support 104. In other words, the fixed support 104 includes the fixed supports
104 and the fixed boom 110. The fixed boom 110 may be coupled to the fixed supports
104 with bolts, nuts, screws, brackets, or other fasteners. In an implementation,
the fixed supports 104 are hollow longitudinal members and the first ends of the fixed
boom 110 are sized and shaped to be received inside of the fixed supports 104 to be
secured in place by nut and bolt assemblies using through-holes in the fixed boom
110 and the fixed supports 104 at the first end 106 of the fixed supports 104. A second
end of the fixed boom 110 is spaced from the first end by a length of the fixed boom
110.
[0027] The system 100 further includes a movable boom 112 coupled to the fixed supports
104. In the storage configuration shown in FIG. 2A, the movable boom 112 is proximate
to the fixed boom 110 and the first end 106 of each of the fixed supports 104. However,
as the movable boom 112 is deployed from the storage configuration to the deployed
configuration in FIG. 2C, the movable boom 112 becomes spaced from the fixed boom
110. In FIG. 2C, the movable boom 112 is positioned proximate the second end 108 of
the fixed supports 104. The movable boom 112 is manipulated between the storage configuration
and the deployed configuration by one or more actuators 114. In the illustrated implementation,
there are two actuators 114, one for each side of the movable boom 112. However, in
other implementations, the movable boom 112 can be manipulated using only a single
actuator 114 or with more than two actuators 114. The actuators 114 are coupled to
a respective fixed support 104 and the movable boom 112. Each of the actuators are
configured to rotate the movable boom 112 from a first position (
e.g., the storage configuration) proximate the first end 106 of each of the fixed supports
104 to a second position (
e.g., the deployed configuration) proximate the second end 108 of each of the fixed supports
104.
[0028] FIGS. 3A-3C illustrate side views of the canopy system 100 in the storage configuration,
the partially deployed configuration, and the deployed configuration, respectively.
With reference to FIGS. 2A-2C and 3A-3C, the system 100 further includes a first link
116 coupled to the fixed boom 110 and the movable boom 112 as well as a second link
118 coupled to the fixed boom 110 and the movable boom 112. The first and second links
116, 118 are structured to rotate relative to the fixed boom 110 and the movable boom
112. The first link 116 is spaced from the second link 118, with the first link 116
being an upper link and the second link 118 being a lower link relative to the fixed
boom 110, in one non-limiting example. In one implementation, the system 100 includes
only a single link, such as either one of first or second link 116, 118. In yet further
implementations, there are more than two links 116, 118, such as three, four, or more
links.
[0029] A plurality of first struts 120 are coupled to the first link 116 and the second
link 118, wherein each of the plurality of first struts 120 are translatable relative
to the first and second links 116, 118, as described below with reference to FIGS.
6A-6C. Further, each of the plurality of first links 120 are structured to rotate
relative to the first link 116 and the second link 118. In the illustrated implementation,
there are four struts 120 in the plurality of first struts 120, however, in other
implementations, there are more or less than four struts 120, such as one strut 120
up to ten or more struts 120. Each of the first struts 120 are coupled to the first
link 116 and the second link 118 at different points along the first link 116 and
the second link 118, respectively. As such, each of the connections between the first
struts 120 and the links 116, 118 are spaced along the links 116, 118. However, in
other implementations, the first struts 120 may share common connection points on
the first link 116 and the second link 118.
[0030] The system 100 further includes a plurality of second struts 122 coupled to the movable
boom 112 and structured to rotate relative to the movable boom 112. In the illustrated
implementation, the plurality of second struts 122 includes three struts 122, while
in other implementations, the plurality of second struts 122 includes more or less
than three struts, such as only one strut, or more than five struts. The plurality
of second struts 122 are coupled to the movable boom 112 at three distinct connection
points spaced along the movable boom 112, as described with reference to FIG. 8. However,
in other implementations, the plurality of second struts 122 are coupled to the movable
boom 112 at a single connection point.
[0031] A plurality of third struts 124 are coupled to the fixed boom 110. The plurality
of third struts 124 includes four total struts in the illustrated implementation,
although in other implementations, the plurality of third struts 124 includes more
or less than four struts. Each of the plurality of third struts 124 are coupled to
the same connection point on the fixed boom 110. In other implementations, each of
the plurality of third struts 124 are coupled to the fixed boom 110 at different points,
similar to the plurality of second struts 122. Only three of the third struts 124
are rotatable with respect to the fixed boom 110, in one implementation. Specifically,
the plurality of third struts 124 includes a strut 124a that is fixed relative to
the fixed boom 110 and struts 124b, 124c, and 124d that are coupled to the fixed boom
110 and structured to rotate relative to the fixed boom 110. As shown in FIGS. 3A-3C,
all of the struts 120, 122, 124 are structured to be positioned proximate one another
when the movable boom 112 is in the storage configuration proximate the fixed boom
(FIG. 3A), and they are further structured to be spaced from one another when the
movable boom 112 is in the extended or deployed configuration (FIG. 3C).
[0032] The system 100 further includes a support rod 126 coupled to one of the plurality
of second struts 122 and the first link 116. The support rod 126 is coupled to a forward-most
one of the plurality of second struts 122, which is the second strut 122 closest to
the first end 106 of the fixed supports 104 of the plurality of second struts 122.
The support rod 126 is coupled to the first link 116 and the strut 122 and structured
to rotate relative to the first link 116 and the strut 122 so as to accommodate rotational
motion of the first link 116 and the strut 122, in one implementation. In an alternative
implementation, the support rod 126 is fixedly coupled to the first link 116 and the
one of the second struts 122. In still further implementations, the support rod 126
is coupled to the second link 118 or the movable boom 112 instead of the first link
116.
[0033] A support frame assembly 128 is coupled to the movable boom 112. The support frame
assembly 128 is structured to rotate from a position proximate the movable boom 112
when the movable boom 112 is in the first position (e.g., the storage configuration)
as shown in FIG. 3A, to a position extended from the movable boom 112 when the movable
boom 112 is in the second position (e.g., the extended or deployed configuration)
shown in FIG. 3C. The support frame assembly 128 is shown more clearly in FIGS. 2B-2C
and includes a frame 128a coupled to the movable boom 112 and at least one support
link 128b coupled to both the movable boom 112 and the frame 128a. The connection
between the frame 128a and the movable boom 112 is structured to enable rotation of
the frame 128a relative to the movable boom 112 and can include the frame 128a coupled
to the movable boom 112 with a pin or fastener through openings in the frame 128a
and the movable boom 112, as described herein. In an alternative implementation, the
connection includes a bracket and pin or fastener assembly, similar to the type described
below with reference to FIG. 5 and FIG. 8.
[0034] Similarly, the support link 128b can be coupled to the frame 128a to enable rotational
motion of the support link 128b relative to the frame 128a and the movable boom 112.
For example, the system 100 may include one or more brackets of the type described
herein, wherein the brackets are coupled to the movable boom and the frame 128a, and
the support link 128b is coupled to the brackets with pins or fasteners. In another
implementation, the support link 128b includes a hole with the frame 128a inserted
through the hole in the support link 128b to enable rotational motion of the support
link 128b around the frame 128a at one end of the support link 128b.
[0035] When the movable boom 112 is in the first position, the support frame assembly 128
is structured to be positioned adjacent the movable boom 112 (see FIG. 2A). In other
words, rotation of the movable boom 112 to the first position rotates the frame 128a
and the support link 128b toward the movable boom 112 until the frame 128a rests on
the movable boom 112. When the movable boom 112 is in the second position, the frame
128a and the support link 128b rotate to extend from the movable boom 112 so as to
cover an aft or rear end of a boat on the boat lift 102.
[0036] In particular, the frame 128a and the support link 128b extend from the movable boom
112 so that a cover coupled to the support frame assembly 128, such as cover 130 in
FIG. 3C, is proximate to, and covers, a rear longitudinal edge 47 (see FIG. 1 D) of
a watercraft on the lift. The watercraft on the lift may be the boat 46 shown in FIG.
1D in one non-limiting example. Thus, the support frame assembly 128 extends the cover
130 (see FIG. 3B) described herein to provide protection for the aft or rear end of
a boat on a boat lift, and in particular, the rear surface of a hull 49 (see FIG.
1D) of a watercraft on the watercraft lift 102 from sun exposure, wind, rain, and
other external forces. In some implementations, the support frame assembly 128 and
the cover 130 on the support frame assembly 128 are also proximate to and cover a
swim platform or other structure coupled to the hull 49 at the rear longitudinal edge
47 (see FIG. 1D) of the watercraft.
[0037] The frame 128a is coupled to the movable boom 112 at a location where the first link
116 is coupled to the movable boom 112, as shown in FIG. 3B. Further, the support
frame assembly 128 includes only one support link 128b coupled to the movable boom
112 and the frame 128a at a center of the movable boom 112 and the frame 128a in the
illustrated implementation. However, in other implementations, the support frame assembly
128 includes multiple support links 128b, with a position of each support link 128b
relative to the movable boom 112, the frame 128a, and the other links 128b selected
according to design specification. For example, multiple support links 128b may be
evenly spaced relative to the movable boom 112 and the frame 128a, or may be grouped
together in close proximity toward a center of the movable boom 112 and the frame
128a.
[0038] In one implementation, the frame 128a is coupled to the movable boom 112 and structured
to slide relative to the movable boom 112, such that a position of the frame 128a
can be adjusted to cover the remainder of the system 100 when the movable boom 112
is in the first (storage) position, as above. For example, the system 100 may include
an actuator configured to translate the frame 128a relative to the movable boom 112.
Alternatively, ends of the frame 128a are structured to be received in channels or
guides in the movable boom 112, and the system 100 further includes a weight coupled
to the frame 128a to adjust a positon of the frame 128a relative to the movable boom
112. Further, the system 100 may include springs in the movable boom 112 to slide
the frame 128a relative to the movable 112. Further, the system 100 may include the
link 128b replaced with a strap, wherein movement of the frame 128a relative to the
movable boom 112 is controlled with one of the above structures.
[0039] A cover 130 is attached to several components of the system 100 such that the cover
130 extends and retracts with the movable boom 112. The cover 130 is shown in FIGS.
3A-3C with dashed lines for clarity. The cover 130 may be comprised of flexible waterproof
fabric or canvas, among other materials. In an implementation, the cover 130 is coupled
to the strut 124a of the plurality of third struts 124, which is fixed relative to
the fixed boom 110. As such, the strut 124a secures the cover 130 to the fixed boom
110 at a forward or front end of the system 100. At a rear end of the system 100,
the cover 130 is secured to the support frame assembly 128. For example, the cover
130 may be secured to the support frame 128a with stitching, or with fabric loops
that extend from the cover 130, around the support frame assembly 128, and are secured
to the cover 130 with stitching. In yet further implementations, the cover 130 is
secured to the frame 128a with hook and loops fasteners, or other fasteners.
[0040] In one implementation, the support frame assembly 128 is structured to rotate such
that a portion of the cover 130 that extends from the movable boom 112 to the frame
128a lays on top of the remainder of the cover 130 and the struts 120, 122, 124 when
the movable boom 112 is in the storage configuration, as shown in FIG. 2A. The portion
of the cover 130 corresponding to the support frame assembly 128 shields the remaining
components of the system 100 from environmental conditions. Preferably, the portion
of the cover 130 corresponding to the support frame assembly 128 (e.g., the portion
of the cover 130 from the movable boom 112 to the frame 128a) is comprised of a different
material than the remainder of the cover 130. For example, the material for this portion
may be vinyl, while the remainder of the cover 130 is waterproof canvas. Other materials
are available for this portion of the cover 130 and can be selected according to design
specification.
[0041] Further, the cover 130 is coupled to each of the plurality of first struts 120. For
example, the cover 130 may include fabric loops that extend around the first struts
120 to be secured to the cover 130 with stitching, as above. The cover 130 extends
from the storage configuration to the deployed configuration with the movable boom
112, with the coupling to the plurality of first struts 120 reducing sagging over
the span of the cover 130 from the fixed boom 110 to the movable 112 in the deployed
configuration. In the deployed configuration, the cover 130 has a length that is greater
than a length of the boat lift 102 so as to protect a boat supported by the boat lift
102. Further, the support frame assembly 128 extends towards the water around a back
of a boat on the boat lift 102, such that the cover 130 provides adequate protection
from elements incident on the boat from all angles, including at the sides and the
back of the boat.
[0042] In this implementation the cover 130 is similar to a tonneau cover in that the cover
130 covers all of the open passenger or cargo space of a boat parked on the boat lift
102. In the illustrated implementation, the cover 130 is not secured to the plurality
of second struts 122, the plurality of third struts 124b, 124c, 124d that are rotatable
relative to the fixed boom 110, or the first and second links 116, 118. However, in
an alternative implementation, the cover 130 is secured to each of the struts 122,
124, 124c, 124d, as well as at least one of, if not both of, the links 116, 118 to
further prevent sagging of the cover 130.
[0043] In another alternative implementation, the cover 130 includes a strap coupled to
the cover 130 on a side facing the system 100. The strap may be positioned centrally
relative to the cover 130 and extending from the front to the back of the cover 130
relative to the system 100. The cover 130 may then be connected to the system 100
by coupling the strap to the struts 120, 122, 124, and the frame assembly 128, such
as with hook and loops fasteners, or with fabric sewn to the strap. In yet further
implementations, the system 100 may include multiple such straps coupled to the cover
130, which are located along the cover 130 and spaced from each other between sides
of the cover 130 to prevent sagging of the cover 130 in the deployed configuration.
[0044] The system 100 further includes a support post 132 coupled to the fixed support 104
on each side of the system 100. Each support post 132 extends from the fixed support
104 perpendicular to the fixed support 104 and contacts the movable boom 112 when
the movable boom 112 is in the second, or deployed position. A height and thickness
of the support post 132 relative to the fixed support 104 can be selected according
to design specification. In one implementation, the support post 132 is structured
to limit rotation of the movable boom 112 such that the struts 120, 122, 124 do not
contact and damage a boat on the boat lift 102, or the support frame assembly 128
does not extend to contact and damage a swim platform of a boat on the boat lift 102.
In other words, when the movable boom 112 is in the second or deployed position, the
movable boom 112 contacts the support post 132 to prevent further rotation of the
movable boom 112 towards the fixed supports 104.
[0045] In one implementation, there is only one support post 132 in the system 100, which
can be located on either side of the boat lift 102. In a further implementation, the
system 100 does not include the support post 132. Rather, the system 100 includes
only the actuator 114, wherein the actuator 114 is configured to provide sufficient
resistive force to hold the movable boom 112 in the deployed configuration without
the support post 132. However, it is to be appreciated that including the support
post 132 allows for selection of a smaller, cheaper actuator 114. Further, the support
post 132 aids in increasing the service life of the system 100 because the support
post 132 reduces tension on the actuator 114 when the movable boom 112 is in the deployed
configuration. Reduction in the tension on the actuator 114 reduces the likelihood
of damage or failure of the actuator 114 over time.
[0046] As shown more clearly in FIGS. 2A-2C, the system 100 includes supports 134 coupled
to the boat lift 102 and the fixed boom 110 to support the fixed boom 110 in an extended
relationship relative to the fixed supports 104. The supports 134 are optional with
a size, shape, and length that can be selected according to design specifications
for the system 100. Further, the system 100 includes a frame 136 coupled to and extending
from the fixed boom 110 at a front end of the system 100. An opening 138 extends through
the frame 136 between the frame 136 and the fixed boom 110. A wire lattice 140 is
disposed in the opening 138 and coupled to the fixed boom 110 and the frame 136. As
shown in FIG. 2A, the frame 136 and the wire lattice 140 are structured to receive
the struts 120, 122, 124 and the cover 130 when the movable boom 112 is in the first
position. The wire lattice 140 includes a plurality of openings 142 (see FIG. 2B)
extending through the wire lattice 140 in order to allow for air circulation to dry
the cover 130 when the cover 130 is received on the wire lattice 140. Further, the
plurality of openings 142 (see FIG. 2B) reduce the amount of shade produced by the
system 100 when the movable boom 112 is in the deployed configuration, as light is
able to pass through openings 142 to the surrounding environment. Reduction in permanent
shade reduces the environmental impact of the system 100.
[0047] Instead of the wire lattice 140, the system 100 can include various other structures
in the opening between the frame 136 and the fixed boom 110. For example, the system
100 may include metal wires, metal posts or rods, wood, netting, or other types of
mesh structures that are coupled to the fixed boom 110 and the frame 136 and that
allow for air circulation. In other implementations, the system 100 includes materials
that do not include a mesh or openings 142. Rather, the system 100 includes solid
materials such as vinyl or plexiglass, which may be clear to reduce permanent shade,
or other materials. As such, the structure or material in the opening between the
frame 136 and the fixed boom 110 can be selected according to design specification.
[0048] Turning to FIGS. 4A-4C, the system 100 includes the actuator 114 coupled to the fixed
support 104 and the movable boom 112. The actuator 114 is preferably an electric linear
actuator. As such, the actuator 114 is configured to be connected to an external power
supply, which provides voltage to drive the actuator 114 in response to a user activating
the actuator 114 through a remote switch. In an alternative implementation, the actuator
114 is a hydraulic actuator configured to be connected to a hydraulic fluid system
activated by a remote switch to drive the actuator 114. The actuator 114 is coupled
at a first end 114a to the fixed support 104 with a first bracket 142 having flanges
142a, 142b, and a hole 142c extending through the flanges 142a, 142b.
[0049] The first end 114a of the actuator 114 includes a pair of arms 144 coupled to and
extending from the actuator 114 with apertures extending through the arms 144 structured
to align with the holes 142c through the flanges 142a, 142b of the first bracket 142.
The hole 142c and the apertures in the arms 144 are sized and shaped to receive a
fastener, such that the actuator 114 is rotatable relative to the first bracket 142
and the fixed support 104 about the fastener. In an alternative implementation, the
actuator 114 is fixed to the first bracket 142 by a fastener through the hole 142c
and the apertures of the arms 144 to prevent rotational motion of the actuator 114
relative to the first bracket 142. The support post 132 is coupled to the fixed support
104 with the first bracket 142, as shown in FIGS. 4A-4C. However, in an alternative
implementation, the support post 132 is coupled to the fixed support 104 at any location
along the respective fixed support 104, such as in front of the actuator 114 or spaced
from the actuator 114 toward the second end 108 of the fixed support 104.
[0050] The actuator 114 includes a second end 114b coupled to a first lever arm 146. The
first lever arm 146 is coupled to second end 114b of the actuator 114 and a second
bracket 148 fixed to the fixed support 104. The second bracket 148 includes a first
pair of flanges 148a, 148b and a hole 148c through the first flanges 148a, 148b sized
and shaped for receiving a fastener. The hole 146c and a hole in the first lever arm
146 are structured to receive a fastener or pin, such that the first lever arm 146
rotates relative to the bracket 148 and the fixed support 104. A second lever arm
150 is coupled to the movable boom 112 and the first lever arm 146. A hole 150a extends
through the second lever arm 150 to align with a corresponding hole through the movable
boom 112, wherein the hole 150a and the hole of the movable boom 112 are structured
to receive a pin or fastener to enable rotation of the second lever arm 150 relative
to the movable boom 112.
[0051] The second lever arm 150 is coupled to the first lever arm 146 in a similar manner.
The movable boom 112 is coupled to a second pair of flanges 152a, 152b of the second
bracket 148 by a pin or fastener extending through a hole 152c through the flanges
152a, 152b and a hole in the movable boom 112. In one implementation, the actuator
114 includes only a single post at each end 114a, 114b of the actuator 114 rather
than a pair of arms. The single post at each end 114a, 114b of the actuator 114 may
be coupled to the bracket 142 and the first lever arm 146 in a similar manner to above.
In yet further implementations, the bracket 142 may include only a single flange instead
of flanges 142a, 142b. Moreover, the actuator 114 may be coupled to the fixed support
104 and the first lever arm 146 by any other connection that enables rotational motion
of the first lever arm 146 relative to the actuator 114 and that enables rotation
of the actuator 114 relative to the fixed support 104.
[0052] In operation, the user activates a switch (not shown) configured to provide power
to the actuator 114 to manipulate the actuator 114 from an extended position shown
in FIG. 4A to a retracted position shown in FIG. 4C. The extended position of the
actuator 114 corresponds to the movable boom 112 being in the first or storage position
and the retracted position of the actuator 114 corresponds to the movable boom 112
being in the extended or deployed configuration. Retraction of the actuator 114 rotates
the first lever arm 146 towards the fixed support 104, which in turn rotates the second
lever arm 150 towards the fixed support as well. Rotation of the second lever arm
150 results in rotation of the movable boom 112 towards the fixed support 104.
[0053] In one implementation, a control system 143 (FIG. 4A) is connected to the actuator
114 to control the actuator. The control system 143 may be connected to the actuator
114 through a wired connection 145. In one implementation where the actuator 114 is
an electric linear actuator, the control system 143 is connected to an external power
supply and selectively provides power to operate the actuator 114 through wire 145.
In other implementations where the actuator 114 is a hydraulic actuator, the control
system 143 is connected to a hydraulic fluid system and is configured to control the
actuator 114 based on an input of the user. For example, the control system 143 may
be mounted on the fixed support 104 and electrically connected to the actuator 114.
The control system 143 may include a toggle switch to be manipulated by the user.
Manipulation of the toggle switch in one direction (such as up, down, left, or right)
corresponds to extension of the actuator 114 towards the position shown in FIG. 4A.
Conversely, manipulating the switch in the opposite direction corresponds to retracting
the actuator 114 towards the position shown in FIG. 4C.
[0054] In yet a further implementation, the control system 143 includes hardware, such as
a receiver or transceiver connected to a microprocessor, configured to communicate
with a remote control containing similar hardware. For example, the remote control
may include buttons corresponding to extension or retraction of the actuator 114.
When the user presses the button to extend the actuator 114, the remote control converts
the user input to a signal that is transmitted by the hardware of the remote control
to the hardware of the control system 143. The hardware of the control system 143
then provides power (or hydraulic fluid) to the actuator 114 to operate the actuator
114. The signals sent by the remote control to the control system 143 can be transmitted
using various communication protocols, such as infrared, radio frequency, Bluetooth
®, or Wi-Fi
®.
[0055] The user can select an amount of rotation of the movable boom 112 relative to the
fixed boom 110. In other words, the user can selectively rotate the movable boom 112,
via the control system 143, to any position between the first position and the second
position described herein. For example, the user may select to extend the actuator
from the retracted position in FIG. 4C a small amount (e.g. less than the amount shown
in FIG. 4B, or less than halfway) in order to raise the movable boom 112 enough to
drive a boat off the boat lift 102, without manipulating the movable boom 112 all
the way to the first or storage position. The length of each of the first and second
lever arms 146, 150 as well as an orientation of a coupling between the first and
second lever arms 146, 150 can be selected to vary a torque or force on the movable
boom 112 in different applications.
[0056] FIG. 4C further illustrates the movable boom 112 contacting the support post 132
to limit rotation of the movable boom 112 to prevent damage to the boat on the boat
lift 102.
[0057] Figure 5 illustrates a connection between the plurality of third struts 124 and the
fixed boom 110. The strut 124a is fixed to the fixed boom 110 by a bracket 154. As
shown in Figure 5, the strut 124a is disposed on the fixed boom 110 over at least
a portion of a length of the strut 124a. The strut 124b is coupled to the bracket
154 by a pin or fastener structured to be received through hole 156 in a connector
158 structured to receive the strut 124b. In one implementation, the strut 124b is
coupled to the bracket 154 on a first or front side of the bracket 154 while the struts
124c, 124d are coupled to the bracket 154 on a second or rear side of the bracket
154. Each of the struts 124c, 124d are structured to be received in connectors 158
coupled to the bracket 154 by a pin or fastener structured to be received through
a hole 160 through the bracket 154 to enable rotation of the connectors 158 relative
to the bracket 154.
[0058] FIGS. 6A-C illustrate the plurality of first struts 120 in additional detail. Each
of the plurality of first struts 120 are coupled to the first link 116 and the second
link 118 by a plurality of first connectors 162 and a plurality of second connectors
164, respectively. The plurality of first connectors 162 are coupled to the first
link 116 and structured to rotate relative to the first link 116 and the plurality
of second connectors 164 are coupled to the second link 118 and structured to rotate
relative to the second link 118. Each of the plurality of first struts 120 includes
a first portion 120a that is fixed to a respective one of the first connectors 162.
The plurality of second connectors 164 are structured to receive a second portion
120b of each of the plurality of first struts 120 in a telescoping or sliding arrangement.
In other words, the second connectors 164 are preferably hollow tubes sized and shape
to receive the second portion 120b of each first strut 120 such that the second portion
of each strut 120 can translate with respect to the second connectors 164.
[0059] For example, as the movable boom 112 (FIGS. 2A-2C) moves from the first position
towards the second position, each of the first struts 120 rotate with the connectors
162, 164. The second portion 120b of each first strut 120 translates relative to the
respective one of the second connectors 164 until the first connector 162 contacts
a corresponding second connector 164 to prevent further translation, as shown in more
detail in FIG. 6B and FIG. 6C. In other words, when the movable boom 112 is in the
first position, the first struts 120 are in a retracted configuration relative to
the second connectors 164. In response to the movable boom 112 rotating towards the
second position, the second portion 120b of each first strut 120 slides relative to
the second connectors 164 to extend from a respective second connector 164, as shown
in FIG. 6A and FIG. 6B. The translation of the second portion 120b of each first strut
120 is limited by the first connector 162 contacting the second connector 164 in the
fully extended position, which may improve the stiffness of the system 100 with the
connectors 162, 164 acting as truss elements. In one implementation, when the movable
boom 112 is in the fully deployed configuration, the first connector 162 does not
contact the second connector 164, but rather, the connectors 162, 164 are spaced from
each other.
[0060] In an alternative implementation, the plurality of first struts 120 do not translate
relative to the links 116, 118. In such an implementation, the system 100 does not
include the struts 120 having first and second portions 120a, 120b, and the system
100 does not include connectors 162, 164. Rather, the system 100 includes the plurality
of first struts 120 having a single, integral, unitary body coupled to the links 116,
118 with a structure to enable rotational motion. For example, the struts 120 may
include holes through the struts 120 that align with corresponding holes through the
links 116, 118 structured to receive a fastener.
[0061] Alternatively, the system 100 may have rotational joints or brackets of the types
described herein attached to the struts 120 and the links 116, 118. Still further,
the system 100 may include the struts 120 coupled to the first link 116 and the second
link 118 with the struts 120 structured to rotate relative to the links 116, 118.
Instead of the struts 120 translating relative to the second link 118, a control or
swing arm is attached to an end of each strut 120 and the second link 118. The control
arm is structured to move a respective strut 120 in an arc relative to the links 116,
118.
[0062] Figure 7 illustrates the first link 116 and the second link 118 in additional detail.
The first link 116 includes a first arm 116a coupled to the fixed boom 110 and a second
arm 116b coupled to the movable boom 112. The first arm 116a and the second arm 116b
of the first link 116 are coupled together with a first hinge 165. The first hinge
165 includes a first plate 166a coupled to the first arm 116a and a second plate 166b
coupled to the second arm 116b of the first link 116. First barrels 168a are coupled
to the first plate 166a in spaced relationship to each other. A second barrel 168b
is coupled to the second plate 166b and is structured to be received in the space
between the first barrels 168a. The barrels 168a, 168b include an opening 170 sized
and shaped to receive a pin or fastener to enable rotational motion of the barrels
168a, 168b relative to each other. Rotation of the barrels 168a, 168b enables rotation
of the arms 116a, 116b of the first link 116 relative to each other via the plates
166a, 166b coupled to respective ones of the arms 116a, 116b and the barrels 168a,
168b.
[0063] In the illustrated implementation, there are two first barrels 168a coupled to the
first plate 166a and one second barrel 168b coupled to the second plate 166b. However,
in other implementations, there may only be one first barrel 168a and one second barrel
168b, or two second barrels 168b and one first barrel 168a.
[0064] The second link 118 similarly includes first and second arms 118a, 118b coupled together
with a second hinge 172. The first arm 118a is coupled to the fixed boom 110 and the
second arm 118b is coupled to the movable boom 112. The second hinge 172 includes
plates 174a, 174b coupled to corresponding ones of the arms 118a, 118b. However, the
second hinge 172 includes only one first barrel 176a coupled to the first plate 174a
and only one second barrel 176b coupled to the second plate 174b.
[0065] The barrels 176a, 176b include an opening 178 extending through the barrels 176a,
176b sized and shaped to receive a pin or other fastener to enable rotation of the
barrels 176a, 176b and the arms 118a, 118b relative to each other, similar to hinge
165 above. The hinge 172 for the second link 118 includes less barrels than the hinge
165 for the first link 116. It is to be appreciated that the number, size, and arrangement
of the barrels of each of the hinges 165, 172 can be selected according to design
specification, such as an amount force produced by the actuator 114 to manipulate
the movable boom 112, which may result in larger or smaller hinges 165, 172 being
selected.
[0066] In one implementation, the first and second hinges 165, 172 may be replaced with
any other structure that enables rotation motion between the arms 116a, 116b, 118a,
118b. For example, first hinge 165 may be removed and the arms 116a, 116b of the first
link 116 may each include holes structured to receive a fastener to secure the arms
116a, 116b to each other to enable rotational motion. The second hinge 172 may also
be removed, with the arms 118a, 118b of the second link 118 coupled together in a
similar arrangement. Other implementations replace the hinges 165, 172 with rods,
bars, or plates coupled to respective ones of the arms 116a, 116b, 118a, 118b with
holes at the end of the rods, bars, or plates structured to receive a fastener.
[0067] In yet further implementations, the first link 116 and the second link 118 do not
include separate arms, but rather, are a unitary assembly with a rotational or articulating
joint at the location of the hinges 165, 172. In other implementations, the first
link 116 and the second link 118 include separate arms, but the hinges 165, 172 are
replaced with a joint. In an alternative implementation, the hinges 165, 172 are replaced
with brackets of the type described herein that are coupled to respective ones of
the arms 116a, 116b, 118a, 118b and structured to receive a fastener to enable rotational
motion. As such, the connection between the arms 116a, 116b of the first link 116
and the arms 118a, 118b of the second link 118 can be selected according to design
specification.
[0068] Figure 8 illustrates the connection between the second plurality of struts 122 and
the movable boom 112 as well as the connection between the support rod 126 and one
of the plurality of second struts 122. As mentioned above, each of the plurality of
second struts 122 are coupled to the movable boom 112 at different locations along
the movable boom 112, in one implementation. For example, one of the second struts
122 is coupled to the movable boom 112 with a first bracket 178a at a first location,
a second one of the second struts 122 is coupled to the movable boom 112 with a second
bracket 178b at a second location, and a third one of the second struts 122 is coupled
to the movable boom 112 with a third bracket 178c at a third location, wherein the
first, second, and third locations are spaced along the movable boom 112.
[0069] Each of the brackets 178a, 178b, 178c is an "L" type bracket with a first portion
coupled to the movable boom 112 and a second portion extending perpendicular to the
first portion in the shape of an "L." Holes 180a, 180b, 180c extend through respective
ones of the plurality of second struts 122 and are structured to align with corresponding
holes through the brackets 178a, 178b, 178c. The holes 180a, 180b, 180c and the holes
through the brackets 178a, 178b, 178c are structured receive a pin or fastener to
secure the second struts 122 to respective ones of the brackets 178a, 178b, 178c and
to enable rotational motion of the second struts 122 relative to the brackets 178a,
178b, 178c and the movable boom 112. The support rod 126 is coupled to a forward-most
one of the second struts 122 (e.g., the second strut 122 the farthest to the left
in the orientation shown) with a bracket 182. In one implementation, the bracket 182
includes flanges and a hole extending through the flanges structured to receive a
pin or fastener, as described herein, to enable rotational motion of the support rod
126 relative to the second strut 122. In other implementations, the bracket 182 fixes
the support rod 126 to the one of the second plurality of struts 122.
[0070] Figure 9 illustrates an example connection between components of the struts 120,
122, 124 described herein. Each of the struts 120, 122, 124 are structured as hoops
or frames with a first arm or rod 184a and a second arm or rod 184b coupled together
by a connector 186. The connector 186 includes a first portion 188a, which may be
a first tube having an axial bore structured to receive the first arm 184a. The first
arm 184a may be secured in the axial bore of the first portion 188a with a friction
fit or an adhesive, for example. In other implementations, fasteners are used to secure
the first arm 184a to the first portion 188a of the connector 186. The connector 186
further includes a second portion 188b, which may be a second tube having similar
qualities to the first tube. The second portion 188b is sized and shaped to receive
the second arm 184b. In the illustrated implementation, the first portion 188a and
the second portion 188b are part of a single, integral, unitary body of the connector
186. However, in other implementations, the first and second portions 188a, 188b may
be separate pieces coupled together to form connector 186.
[0071] The first and second portions 188a, 188b are supported by a brace 190 coupled to
each of the first and second portions 188a, 188b and extending between the first and
second portions 188a, 188b. The brace 190 provides structural support to the connector
186 to prevent the first and second portions 188a, 188b from breaking at a corner
192 between the portions 188a, 188b during normal operation. In one implementation,
the corner 192 is rounded so as to prevent damage to the cover 130 during repeated
folding and unfolding operations. Further, each of the struts 120, 122, 124 may include
a connector 186 on each side of the respective strut 120, 122, 124 such that the struts
120, 122, 124 are hoops that extend around the boat on the boat lift without contacting
the boat. As such, each of the struts 120, 122, 124 may include three arms or rods
joined together by two connectors 186 to form a "U" shape. However, only one connector
186 is described in detail with respect to FIG. 9 to avoid repetition. In yet a further
implementation, each of the struts 120, 122, 124 are a single, unitary, integral piece
without connectors 186.
[0072] Unless stated otherwise, it is to be appreciated that the material compositions of
the components in the system 100 described herein can be selected according to design
specification. For example, the features described herein may be metal (steel, stainless
steel, or aluminum, among others) as well as plastic or PVC, among others. Hence,
the present disclosure is not limited by the material composition of the features
described herein.
[0073] Thus, an implementation of a system for deploying a cover over an object, the cover
having a first portion and a second portion according to the present disclosure, includes:
a fixed support having a first end and a second end opposite to the first end; a movable
boom coupled to the fixed support and structured to rotate relative to the fixed support
between a first position where the movable boom is proximate the first end of the
fixed support and a second position where the movable boom is proximate the second
end of the fixed support; and a first frame coupled to the movable boom and structured
to rotate in response to rotation of the movable boom between a first location proximate
the movable boom to a second location spaced from the movable boom, the fixed support
and the movable boom sized and shaped to support the first portion of the cover between
the fixed support and the movable boom, and the movable boom and the first frame sized
and shaped to support the second portion of the cover between the movable boom and
the first frame, the movable boom and the first frame cooperating to move the second
portion of the cover in an overlapping position over the first portion of the cover
in response to the movable boom being in the first position.
[0074] In an implementation, the system further includes the first location of the first
frame corresponding to the first position of the movable boom and the second location
of the first frame corresponding to the second position of the movable boom, the system
further including an actuator coupled to the fixed support and the movable boom, the
actuator configured to rotate the movable boom from the first position to the second
position, and a support link coupled to the first frame and the movable boom, the
support link structured to rotate relative to the movable boom.
[0075] In an implementation, the system further includes the first frame including a frame
element coupled to the movable boom and a support link coupled to the frame element
and positioned centrally with respect to the frame element and the movable boom.
[0076] In an implementation, the system further includes a second frame coupled to the fixed
support and structured to receive the cover in response to the movable boom being
in the first position.
[0077] In an implementation, the system further includes the object being a watercraft with
a rear longitudinal edge, the first frame extending past the rear longitudinal edge
of the watercraft in response to the movable boom being in the second position with
the cover extending over the rear longitudinal edge.
[0078] A further implementation of a system according to the present disclosure includes:
a fixed support having a first end and a second end opposite to the first end; a movable
boom coupled to the fixed support and structured to move between a storage configuration
and a deployed configuration, wherein in the storage configuration, the movable boom
is proximate the first end of the fixed support and in the deployed configuration,
the movable boom is proximate the second end of the fixed support; a support frame
assembly coupled to the movable boom and structured to rotate relative to the movable
boom in response to rotation of the movable boom between the storage configuration
and the deployed configuration; and a cover coupled to at least one of the fixed support,
the movable boom, and the support frame assembly, the cover including a first portion
and a second portion, the movable boom and the support frame assembly cooperating
to move the second portion of the cover in an overlapping position over the first
portion of the cover in response to the movable boom being in the storage configuration.
[0079] In an implementation, the system further includes a link coupled to the fixed support
and the movable boom, the link structured to rotate relative to the fixed support
and the movable boom and a strut coupled to the link and structured to rotate relative
to the link.
[0080] In an implementation, the system further includes the support frame assembly including
a support link coupled to the movable boom and structured to rotate relative to the
movable boom and a frame coupled to the movable boom and the first support link and
structured to rotate relative to the movable boom.
[0081] In an implementation, the system further includes a frame coupled to the fixed support
and a wire lattice coupled to the frame and the fixed support.
[0082] In an implementation, the system further includes the fixed support and the movable
boom sized and shaped to support the first portion of the cover between the fixed
support and the movable boom and the movable boom and the support frame assembly sized
and shaped to support the second portion of the cover between the movable boom and
the support frame assembly, and the wire lattice is structured to receive the cover
in response to the movable boom being in the storage configuration and the fixed support.
[0083] A further implementation of a system according to the present disclosure includes:
a fixed support having a first end and a second end opposite to the first end; a movable
support coupled to the fixed support and structured to rotate relative to the fixed
support between a first position proximate the first end and a second position proximate
the second end; and a first frame coupled to the movable support and structured to
rotate between a first configuration and a second configuration in response to rotation
of the movable support, the first frame extending past the rear longitudinal edge
of the watercraft in the second configuration, wherein the first configuration of
the first frame corresponds to the first position of the movable support and the second
configuration of the first frame corresponds to the second position of the movable
support.
[0084] In an implementation, the system further includes a cover coupled to the movable
support, the movable support configured to manipulate the cover between a storage
configuration corresponding to the first position of the movable boom and a deployed
configuration corresponding to the second position of the movable boom.
[0085] In an implementation, the system further includes the cover including a first portion
and a second portion from the movable boom to the first frame, the second portion
disposed on the first portion in response to the cover being in the deployed configuration,
the system further including a second frame coupled to the fixed support and structured
to receive the cover in the storage configuration.
[0086] In an implementation, the system further includes a link coupled to the fixed support
and the movable boom and structured to rotate relative to the fixed support and a
strut coupled to the link and structured to rotate relative to the link.
[0087] In an implementation, the system further includes the fixed support being configured
to be coupled to the watercraft lift and the first frame being configured to be proximate
the rear longitudinal edge of the watercraft on the watercraft lift in the second
configuration of the first frame.
[0088] In the foregoing description, certain specific details are set forth in order to
provide a thorough understanding of various disclosed implementations. However, one
skilled in the relevant art will recognize that the present disclosed implementations
may be practiced without one or more of these specific details, or with other methods,
components, materials, etc. In other instances, well-known structures or components,
or both, that are associated with the environment of the present disclosure have not
been shown or described in order to avoid unnecessarily obscuring descriptions of
the implementations.
[0089] Unless the context requires otherwise, throughout the specification and claims that
follow, the word "comprise" and variations thereof, such as "comprises" and "comprising,"
are to be construed in an open inclusive sense, that is, as "including, but not limited
to." The foregoing applies equally to the words "including" and "having."
[0090] Reference throughout this description to "one implementation" or "an implementation"
means that a particular feature, structure, or characteristic described in connection
with the implementation is included in at least one implementation. Thus, the appearance
of the phrases "in one implementation" or "in an implementation" in various places
throughout the specification are not necessarily all referring to the same implementation.
Furthermore, the particular features, structures, or characteristics may be combined
in any suitable manner in one or more implementations.
[0091] In general, in the following claims, the terms used should not be construed to limit
the claims to the specific implementations disclosed in the specification and the
claims, but should be construed to include all possible implementations along with
the full scope of equivalents to which such claims are entitled. Accordingly, the
claims are not limited by the disclosure.