Field of the art
[0001] The present invention generally relates to a support assembly with inclination adjustment
for an awning box and more particularly to a support assembly for an awning box provided
with means for varying the angular position of the box by means of a mechanism including
a flexible band as a traction element.
State of prior art
[0002] Extensible awning devices comprising a rolling tube actuated to roll a canvas forming
the awning, a load bar fixed to the free end of the canvas, and a pair of articulated
arms connected to the load bar and actuated by elastic elements to support the load
bar and extend the canvas as the rolling tube is rotated to unroll the canvas are
well known. Awning assemblies of this type are known in the prior art in which the
rolling tube of the canvas and the articulated arms are housed inside a protective
casing, in a folded awning situation. In this folded awning situation, the load bar
is coupled to close a longitudinal opening of the box provided to allow the passage
of the canvas and the arms in an open awning situation. The ends of the rolling tube
and the inner ends of the arms are fixed to respective end plates closing the longitudinal
ends of the box. The mentioned end plates are coupled to respective support parts
fixed to a wall or another structure.
[0003] Patent application
EP-A-03380120, to the present applicant, discloses a support assembly for an awning box of this
type provided with an inclination adjustment for the box which allows selecting a
desired inclination degree for the canvas and the arms in the open awning situation.
For each side end of the box, the assembly comprises a support part to which the corresponding
end plate of the end of the box is rotatably coupled. The mentioned support part is
adapted to be fixed with respect to a wall or another structure. Angular adjustment
means include a gear wheel sector formed in the end plate and a rack meshed with said
gear wheel sector. The rack is formed in a body coupled to a screw spindle which can
be actuated manually so as to move the rack linearly, which allows rotating the end
plate for the purpose of varying the angular position of the box with respect to the
support part. There are fixing means including a wedge element formed in a part coupled
to a screw spindle assembled in the support part and which can be actuated to move
the wedge element against conjugated surfaces formed in the end plate, which surfaces
allow fixing the selected angular position of the box with respect to the support
part.
[0004] On the other hand, patent
ES-A-2159211, to the present applicant, describes a flexible traction element useful for transmitting
the tension of one or more elastic elements housed inside a segment of the articulated
arm to another segment through the hinge. This flexible traction element has the form
of a planar band comprising a body of a flexible plastic material and a plurality
of cores made of a high tensile strength metallic cable. The ends of said cable cores
project from both ends of the plastic body and are firmly connected to respective
terminals located at the ends of the band. The terminals are made of a metallic material
molded in a substantially cylindrical shape transverse to the longitudinal direction
of the flexible traction element, and the cable ends are embedded in the material
of the terminals.
[0005] One purpose of the present invention is to provide a support assembly with inclination
adjustment for an awning box with a simplified construction by using a flexible traction
element.
Disclosure of the invention
[0006] The present invention contributes to achieving the previous and other advantages
by providing a support assembly with inclination adjustment for an awning box of the
type comprising a support part adapted to be fixed with respect to a wall or another
structure, and an end plate for closing one of the side ends of a box, which end plate
is rotatably coupled to said support part, angular position adjustment means being
provided for varying the angular position of said end plate with respect to the support
part, and fixing means for fixing the end plate with respect to the support part in
a selected angular position. The assembly of the present invention is characterized
in that said angular position adjustment means comprise a flexible traction element
having a first end fixed to an anchoring of the end plate, a middle part supported
on a support surface of the end plate spaced apart from a rotation axis thereof, and
a second end fixed to an anchoring of a sliding block slidingly assembled in the support
part and coupled to actuation means which can be actuated to move said sliding block
with respect to the support part.
[0007] In one exemplary embodiment, said actuation means comprise a screw spindle coupled
to a threaded through hole in said sliding block. The mentioned screw spindle and
the sliding block coupled thereto are housed in a cavity formed in the support part.
The screw spindle is longitudinally trapped in said cavity, such that its movements
in the direction of the rotation axis thereof are restricted. However, the screw spindle
has a coupling end which can be accessed by a driving tool from the outside through
an opening in the support part, such that it can be rotated by means of said driving
tool from the outside to thus pull or loosen the traction element for the purpose
of rotating the end part and thereby varying the angular position of the box in one
direction or another.
[0008] The center of masses of the assembly of the elements linked to the box is preferably
offset sideways with respect to the rotation axis of the box, thereby the box has
a tendency to rotate in one direction due to the effect of gravity, and the traction
element is arranged to pull the end plate in the opposite rotation direction.
[0009] The mentioned anchoring of the end plate and said anchoring of the sliding block
are shaped so as to respectively trap terminals in the first and second ends of the
flexible traction element. A flexible traction element like the one described in the
mentioned patent
ES-A-2159211 is useful for the present invention.
[0010] The mentioned fixing means for fixing the angular position of the end plate with
respect to the support part can be of any known type. For example, the fixing means
can comprise at least one screw passed through an elongated opening of the support
part and secured to a threaded hole of the end plate or to a part fixed with respect
to the end plate. Alternatively, the fixing means can comprise a wedge device similar
to the one described in the mentioned patent application
EP-A-03380120.
[0011] The support assembly of the present invention shows, by virtue of the use of the
mentioned flexible traction element, a simplified construction eliminating the need
of molding or machining gear teeth in the involved parts.
Brief description of the drawings
[0012] The features and advantages of the present invention will be more fully understood
from the following detailed description of an exemplary embodiment with reference
to the attached drawings, in which:
Figure 1 is a cross-sectional side view of the support assembly with inclination adjustment
for an awning box according to an exemplary embodiment of the present invention;
Figure 2 is a cross-sectional front view of the support assembly of Figure 1.
Detailed description of an exemplary embodiment
[0013] With reference to Figures 1 and 2, an exemplary embodiment of the support assembly
with inclination adjustment for an awning box according to the present invention is
shown, which comprises a support part 10 adapted to be fixed with respect to a wall
or another structure, either directly or with the intermediation of an anchoring part
70 previously fixed to said wall or another structure. Different elements of an awning
are housed in a box 50 comprising a casing 51, a side end of which is shown as closed
by an end plate 20 in Figure 2. The mentioned end plate 20 is rotatably coupled to
said support part 10. The assembly incorporates angular position adjustment means
for varying the angular position of said end plate 20 with respect to the support
part 10, and fixing means for fixing the end plate 20 with respect to the support
part 10 in a selected angular position:
[0014] The mentioned angular position adjustment means comprise a flexible traction element
30 which has a first end 31 fixed to an anchoring 21 of the end plate 20, a middle
part 33 supported on a support surface 23 of the end plate 20 spaced apart from a
rotation axis thereof, and a second end 32 fixed to an anchoring 42 of a sliding block
40 slidingly assembled in the support part 10 and coupled to actuation means which
can be actuated to move said sliding block 40 with respect to the support part 10.
The mentioned support surface 23 of the end plate 20 is formed in a projection 25
of the end plate 20 housed in a cavity 13 of the support part 10, whereas the sliding
block 40 and its actuation means are housed in a cavity 11 formed in the support part
10.
[0015] The center of masses of the assembly of elements linked to the box 50 is offset sideways
with respect to the rotation axis of the end plate 20, thereby the box 50 has a tendency
to rotate in a first direction due to the effect of gravity. The traction element
30 is arranged such that when the sliding block is moved in one direction, the flexible
traction element 30 transmits the movement to the anchoring 21 of the end plate 20
to make it rotate in a second direction, opposite to the effect of gravity, and when
the sliding block is moved in a second direction, opposite to the first one, the flexible
traction element 30 is loosened, allowing the rotation of the box 50 in the first
direction in favor of gravity.
[0016] For the actuation of the movements of the sliding block 40 there is provided a screw
spindle 41 coupled to a threaded through hole 43 in said sliding block 40. The mentioned
screw spindle 41 and the sliding block coupled thereto are housed in said cavity 11
formed in the support part 10. The screw spindle 41 is longitudinally trapped in said
cavity 11 such that it cannot move in a direction parallel to its own axis. However,
the screw spindle can be rotated on its longitudinal axis. To this purpose, the screw
spindle 41 has a coupling end 44, for example, an Allen type hexagonal recess, facing
an opening 12 of the support part 10. A driving tool (not shown) for example an Allen
type hexagonal key, can be introduced from the outside through said opening 12 so
as to couple with said coupling end 44 and actuate the screw spindle 41, thus adjusting
the angular position of the box 50.
[0017] A band of the type described in the mentioned patent
ES-A-2159211 can be used as a flexible traction element. Thus, the mentioned middle part 33 located
between said first and second ends 31, 32 of the flexible traction element 30 generally
has the form of a planar band formed by a body of flexible material, such a plastic,
and a plurality of cores made of a flexible material with a high tensile strength,
such as for example, metallic cables. Ends of said cores projecting form the ends
of the band body are firmly connected to respective terminals located in said first
and second ends 31, 32. These terminals are preferably made of a metallic material
molded in a substantially cylindrical shape transverse to the longitudinal direction
of the flexible traction element 30, and the cable ends are embedded therein. The
anchoring 21 of the end plate 20 and the anchoring 42 of the sliding block 40 are
shaped so as to respectively trap the terminals of the first and second ends 31, 32
of the flexible traction element 30. The support surface 23 of the end plate 20 is
delimited at both sides thereof by guide ribs 24 to prevent side movements of the
band or flexible traction element 30.
[0018] The mentioned fixing means for fixing the end plate 20 with respect to the support
part 10 in a selected angular position comprise, for example, a screw (not shown)
passed through an elongated opening 16 of the support part 10 and secured in a threaded
hole 28 of the end plate 20, or in a threaded hole of a part fixed with respect to
the end plate 20, such as a hexagonal nut housed in a corresponding recess. However,
other fixing means can be applied, such as, for example, one or more wedge elements
(not shown) actuated to move in a radial direction and be locked in corresponding
tilted surfaces, as described in the mentioned patent application
EP-A-03380120.
[0019] As observed in Figure 2, the end plate 20 comprises, at one side thereof opposite
to said projection 15, at least one coupling configuration 26 for coupling to the
end of said casing 51 of the box 50, a tube support to rotatably support an end of
the canvas rolling tube (not shown), and an arm support 27 for the articulated fixing
of an awning arm 60. The mentioned rolling tube can be connected through respective
central openings of the support part 10 and of the end plate 20 with a rotation actuation
mechanism (not shown) which can be actuated manually by means of a crank, or it can
contain a rotation actuation electric motor (not shown) connected to the power supply
and to control organs through cables passed through said central openings.
[0020] A person skilled in the art will be able to introduce variations and modifications
in the described and shown exemplary embodiment without departing from the scope of
the present invention as it is defined in the attached claims.
1. A support assembly with inclination adjustment for an awning box, of the type comprising
a support part (10) adapted to be fixed with respect to a wall or another structure,
and an end plate (20) for closing one of the side ends of a box casing (51), said
end plate (20) being rotatably coupled to said support part (10), angular position
adjustment means being provided for varying the angular position of said end plate
(20) with respect to the support part (10), and fixing means being provided for fixing
the end plate (20) with respect to the support part (10) in a selected angular position,
characterized in that said angular position adjustment means comprise a flexible traction element (30)
having a first end (31) fixed to an anchoring (21) of the end plate (20), a middle
part (33) supported on a support surface (23) of the end plate (20) spaced apart from
a rotation axis thereof, and a second end (32) fixed to an anchoring (42) of a sliding
block (40) assembled in a sliding manner in the support part (10) and coupled to actuation
means which can be actuated to move said sliding block (40) with respect to the support
part (10).
2. An assembly according to claim 1, characterized in that said actuation means comprise a screw spindle (41) coupled to a threaded through
hole (43) in said sliding block (40).
3. An assembly according to claim 2, characterized in that said screw spindle (41) and the sliding block (40) coupled thereto are housed in
a cavity (11) formed in the support part (10), where the screw spindle (41) is longitudinally
trapped in said cavity 11 and a coupling end (44) of the screw spindle (41) can be
accessed by a driving tool from the outside through an opening (12) of the support
part (10).
4. An assembly according to any of the previous claims characterized in that said flexible traction element (30) has at its middle part (33) the form of a planar
band comprising a body made of a flexible material and a plurality of cores made of
a flexible material with a high tensile strength, ends of said cores being firmly
connected to respective terminals located at said first and second ends (31, 32).
5. An assembly according to claim 4, characterized in that said body is made of a plastic material, said cores are metallic cables and said
terminals are made of a metallic material molded in a substantially cylindrical shape
transverse to the longitudinal direction of the flexible traction element (30).
6. An assembly according to claim 5, characterized in that said anchoring (21) of the end plate (20) and said anchoring (42) of the sliding
block (40) are -shaped so as to respectively trap the terminals of the first and second
ends (31, 32) of the flexible traction element (30).
7. An assembly according to claim 6, characterized in that said support surface (23) of the end plate (20) is delimited at both sides thereof
by guide ribs (24) to prevent side movements of the flexible traction element (30).
8. An assembly according to claim 1, characterized in that said fixing means comprise at least one screw passed through an elongated opening
(16) of the support part (10) and secured in a threaded hole (28) of the end plate
(20) or of a part fixed with respect to the end plate (20).
9. An assembly according to claim 1, characterized in that said support surface (23) of the end plate (20) is formed in a projection (25) of
the end plate (20) housed in a cavity (13) of the support part (10).
10. An assembly according to claim 9, characterized in that the end plate (20) comprises, in one side thereof opposite to said projection (15),
at least one coupling configuration (26) for coupling to the end of said casing (51),
a tube support to rotatably support an end of the rolling tube, and an arm support
(27) for the articulated fixing of an awning arm (60).