Technical field
[0001] Aspects of the present invention relate to an apparatus for supporting a wire attachable
to a structure of a building, the wire being configured for the connection to a traveler
device connectable to and slidable along the wire.
Background
[0002] Conventionally, a wire for fall protection may be mounted or attached to the roof
or wall of a building by way of attachments. The wire extends along the roof and/or
wall of the building and a user can connect to the wire via a safety line attached
to a slidable traveler device, such as a carabiner, or any other loop element, which
can be mounted on the wire. The slidable traveler device is guided along the wire
and allows the user to move along the wire while being protected against falling.
Summary
[0003] The inventor of the present invention has found drawbacks in conventional solutions
for supporting a wire, e.g. a safety wire for fall protection, attachable to a structure
of a building and guiding a slidable traveler device past the wire support. For example,
some conventional solutions for supporting a wire are too complex. For example, some
conventional solutions make it difficult for a traveler device to bypass the wire
support, e.g. require multiple steps.
[0004] An object of embodiments of the invention is to provide a solution which mitigates
or solves drawbacks and problems of conventional solutions.
[0005] The above and further objects are solved by the subject matter of the independent
claim. Further advantageous embodiments of the invention can be found in the dependent
claims.
[0006] According to a first aspect of the invention, the above mentioned and other objects
are achieved with an apparatus for supporting a wire attachable to a structure of
a building, the wire being configured for the connection to a traveler device connectable
to and slidable along the wire, the traveler device being attachable to a safety line
connectable to a user, wherein the apparatus comprises
a support, and
a wheel,
wherein the support is attachable to a structure of a building,
wherein the wheel is pivotally attached to the support and rotatable about an axis
of rotation in relation to the support,
wherein the support comprises a seat for supporting the wire,
wherein the support at least in one direction forms a passage between a first space
and a surrounding space outside the first space,
wherein the seat borders the first space,
wherein the wheel has a center through which the axis of rotation extends,
wherein the wheel comprises a circular center section including the center of the
wheel,
wherein starting from the center of the wheel the center section has a first radial
extension,
wherein the wheel comprises two or more outer sections adjoining the center section,
wherein the outer section forms a peak,
wherein starting from an outer boundary of the center section the outer section has
a second radial extension ending at the peak of the outer section,
wherein the extension of the wheel from the center of the wheel to the top the peak
is configured to cover the passage at least in one direction when positioned at the
passage so as to enclose the wire,
wherein the wheel forms two or more recesses,
wherein in the direction of rotation of the wheel about the axis of rotation a recess
of the two or more recesses is positioned between every two outer sections of the
two or more outer sections,
wherein the recess is configured to receive and hold one of the traveler device and
safety line,
wherein while rotating and while holding one of the traveler device and safety line
in one of the two or more recesses the wheel is configured to guide one or more of
the traveler device and safety line past the support so as to let one or more of the
traveler device and safety line to move along the wire, and
wherein the first radial extension exceeds the second radial extension.
[0007] An advantage of the apparatus according to the first aspect is that the traveler
device can slide along the wire without the traveler device and/or safety line getting
caught by the support. By way of the wheel, it can be assured that the user can move
along the wire without the traveler device and/or safety line getting caught by the
support. By defining that the first radial extension exceeds the second radial extension,
the recess is more shallow and/or the radial length of the outer sections in relation
to the depth of the recess is reduced compared to conventional solutions, whereby
an improved flow or movement of the traveler device past the support is provided,
and the risk of the traveler device getting caught at the support is reduced or minimized.
[0008] An advantage of the apparatus according to the first aspect is that a more secure
and less complicated procedure for the user to bypass a wire support is provided.
An advantage of the apparatus according to the first aspect is that an easy way of
moving past wire supports supporting the wire, which may prevent the movements of
the user, is provided. An advantage of the apparatus according to the first aspect
is that the movements of the user are not hindered while the safety of the user is
maintained. For example, by way of the wheel, the traveler device and/or safety line
can be more smoothly and securely guided past the wire support, in relation to conventional
solutions. An advantage of the apparatus according to the first aspect is that an
improved guidance of a slidable traveler device along a wire, e.g. a safety wire for
fall protection, is provided. An advantage of the apparatus according to the first
aspect is an improved wire support. An advantage of the apparatus according to the
first aspect is that the apparatus is easier and less expensive to produce in relation
to conventional solutions. For some embodiments, the outer section may be referred
to as an arm or a spoke.
[0009] According to an advantageous embodiment of the apparatus according to the first aspect
the wheel comprises four or more outer sections adjoining the center section. An advantage
of this embodiment is a further improved wire support. An advantage of this embodiment
is that the guiding of the traveler device past the wire support is further improved.
An advantage of this embodiment is that a further improved guidance of the slidable
traveler device along the wire, e.g. a safety wire for fall protection, is provided.
[0010] According to an advantageous embodiment of the apparatus according to the first aspect
the first radial extension is at least 50 percent longer than the second radial extension.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0011] According to an advantageous embodiment of the apparatus according to the first aspect
the first radial extension is at least 100 percent longer than the second radial extension.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0012] According to an advantageous embodiment of the apparatus according to the first aspect
the first radial extension is at least 150 percent longer than the second radial extension.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0013] According to an advantageous embodiment of the apparatus according to the first aspect
the first radial extension of the center section extends in a vertical direction.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0014] According to an advantageous embodiment of the apparatus according to the first aspect
the second radial extension of the outer section extends in a vertical direction.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0015] According to an advantageous embodiment of the apparatus according to the first aspect
the axis of rotation of the wheel extends in a horizontal direction. An advantage
of this embodiment is a further improved wire support. An advantage of this embodiment
is that the guiding of the traveler device past the wire support is further improved.
An advantage of this embodiment is that a further improved guidance of the slidable
traveler device along the wire, e.g. a safety wire for fall protection, is provided.
[0016] According to an advantageous embodiment of the apparatus according to the first aspect
the first radial extension of the center section extends in a horizontal direction.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0017] According to an advantageous embodiment of the apparatus according to the first aspect
the second radial extension of the outer section extends in a horizontal direction.
An advantage of this embodiment is a further improved wire support. An advantage of
this embodiment is that the guiding of the traveler device past the wire support is
further improved. An advantage of this embodiment is that a further improved guidance
of the slidable traveler device along the wire, e.g. a safety wire for fall protection,
is provided.
[0018] According to an advantageous embodiment of the apparatus according to the first aspect
the axis of rotation of the wheel extends in a vertical direction. An advantage of
this embodiment is a further improved wire support. An advantage of this embodiment
is that the guiding of the traveler device past the wire support is further improved.
An advantage of this embodiment is that a further improved guidance of the slidable
traveler device along the wire, e.g. a safety wire for fall protection, is provided.
[0019] According to an advantageous embodiment of the apparatus according to the first aspect
the support is configured to keep the wire spaced apart from the structure of the
building. An advantage of this embodiment is that the guiding of the traveler device
past the wire support is further improved. An advantage of this embodiment is that
a further improved guidance of the slidable traveler device along the wire, e.g. a
safety wire for fall protection, is provided.
[0020] According to an advantageous embodiment of the apparatus according to the first aspect
the support is formed from one or more plates. An advantage of this embodiment is
that the support is simple and inexpensive to produce. An advantage of this embodiment
is a further improved wire support. An advantage of this embodiment is that a further
improved guidance of the slidable traveler device along the wire, e.g. a safety wire
for fall protection, is provided.
[0021] According to an advantageous embodiment of the apparatus according to the first aspect
the wheel is formed from one or more plates. An advantage of this embodiment is that
the wheel is simple and inexpensive to produce. An advantage of this embodiment is
a further improved wire support. An advantage of this embodiment is that a further
improved guidance of the slidable traveler device along the wire, e.g. a safety wire
for fall protection, is provided.
[0022] According to an advantageous embodiment of the apparatus according to the first aspect
the wheel has a substantially quadrilateral shape. An advantage of this embodiment
is a further improved wire support. An advantage of this embodiment is that the guiding
of the traveler device past the wire support is further improved. An advantage of
this embodiment is that a further improved guidance of the slidable traveler device
along the wire, e.g. a safety wire for fall protection, is provided. However, other
shapes are possible.
[0023] According to an advantageous embodiment of the apparatus according to the first aspect
the wheel is pivotally attached to the support at the passage. An advantage of this
embodiment is a further improved wire support. An advantage of this embodiment is
that the guiding of the traveler device past the wire support is further improved.
An advantage of this embodiment is that a further improved guidance of the slidable
traveler device along the wire, e.g. a safety wire for fall protection, is provided.
[0024] According to an advantageous embodiment of the apparatus according to the first aspect
the support comprises one or more weakenings. An advantage of this embodiment is that
a controlled deformation of the support in case of a fall is provided, whereby the
fall can be dampened. An advantage of this embodiment is a further improved wire support.
[0025] According to an advantageous embodiment of the apparatus according to the first aspect
the weakening of the support comprises one or more of the group of:
- a notch;
- a recess;
- an opening; and
- a deformation zone.
[0026] An advantage of this embodiment is that a controlled deformation of the support in
case of a fall is provided, whereby the fall can be dampened. An advantage of this
embodiment is a further improved wire support.
[0027] According to an advantageous embodiment of the apparatus according to the first aspect
one or more of the support and wheel is/are made of a material comprising or consisting
of a metal or a metal alloy. An advantage of this embodiment is that the strength
of the apparatus is enhanced. An advantage of this embodiment is that the apparatus
can be manufactured in a simple and efficient manner. An advantage of this embodiment
is a further improved wire support. An advantage of this embodiment is that a further
improved guidance of the slidable traveler device along the wire, e.g. a safety wire
for fall protection, is provided.
[0028] According to a second aspect of the invention, the above mentioned and other objects
are achieved with an arrangement comprising one or more wires, wherein the arrangement
comprises one or more apparatuses according to any one of the embodiments disclosed
above or below.
[0029] Advantages of the arrangement according to the second aspect and its embodiments
correspond to the above- or below-mentioned advantages of the apparatus according
to the first aspect and its embodiments.
[0030] Further advantageous embodiments of the apparatus and the arrangement according to
the present invention and further advantages with the embodiments of the present invention
emerge from the detailed description of embodiments.
Brief Description of the Drawings
[0031] Embodiments of the invention will now be illustrated, for exemplary purposes, in
more detail by way of embodiments and with reference to the enclosed drawings, where
similar references are used for similar parts, in which:
- Figure 1
- is a schematic side view of a first embodiment of the apparatus according to the first
aspect of the invention;
- Figure 2
- is a schematic front view of the apparatus of figure 1;
- Figure 3
- is a schematic side view of a second embodiment of the apparatus according to the
first aspect of the invention;
- Figure 4
- is a schematic rear view of the apparatus of figure 3;
- Figure 5
- is a schematic front view of an embodiment of the wheel of the apparatus according
to the first aspect of the invention;
- Figure 6
- is a schematic side perspective view of an embodiment of the support of the apparatus
according to the first aspect of the invention;
- Figure 7
- is a schematic front view of an embodiment of the apparatus according to the first
aspect of the invention guiding a traveler device; and
- Figure 8
- is a schematic front view of the apparatus of figure 7 with the traveler device and
the wheel in different positions in relation to figure 7.
Detailed Description
[0032] With reference to figures 1 to 8, embodiments of the apparatus 100 for supporting
a wire 204 attachable to a structure 300 of a building according to the first aspect
of the invention and embodiments of the arrangement 200 according to the second aspect
of the invention are schematically illustrated. The apparatus 100 is arranged to guide,
i.e. provides guidance of, a traveler device 202 connectable to and slidable along
the wire 204 attached to the structure 300, e.g. a roof or a wall, of a building or
a vessel. The traveler device 202 is attachable, or attached, to a safety line 206
(see figures 7 and 8) connectable to a user (or worker), e.g. a person working on
or at the structures 300 of the building or vessel, e.g., working on the roof of the
building or vessel. For example, the traveler device 202 may be referred to as a traveling
element, a connector, or a coupler. For some embodiments, the traveler device 202
may comprise a carabiner, a hoop, or a snap-link. The traveler device 202 may be mounted
on the wire 204, e.g., by being arranged/hooked around, or snapped onto, the wire
204. When mounted on the wire 204, the traveler device 202 is slidable along the wire
204, i.e., the traveler device 202 can move back and forth along the wire 204. A user
connected to the safety line 206 attached the traveler device 202 can thereby slide
the traveler device 202 along the wire 204 by pulling the safety line 206.
[0033] With reference to figures 1 to 8, the apparatus 100 includes a support 102 and a
wheel 104. The support 102 is attachable to the structure 300 of the building, for
example by way of one or more bolts, nuts, screws, and associated openings, or by
way of other means of attachment. The structure 300 of the building, which may e.g.
be a roof or a wall, and the wire 204 are only partially illustrated in figures 1
to 8 for illustrative purposes. The wheel 104 is pivotally attached to the support
102 and rotatable about an axis of rotation A1, i.e. an imaginary axis, in relation
to the support 102. The wheel 104 may hence be configured to rotate in relation to
the support 102 around the imaginary axis of rotation A1.
[0034] The support 102 includes, or forms, a seat 106, e.g. a recess, for supporting the
wire 204. The seat 106 may, e.g., receive and hold the wire 204. The support 102 may
be configured to keep the wire 204 spaced apart from the structure 300 of the building.
In some embodiments, the support 102 may hence keep the wire 204 supported in the
seat 106 separated from the structure 300 of the building, i.e. the support 102 supports
the wire 204 so as to provide a space or distance between the wire 204 and the structure
300 of the building.
[0035] With reference to figure 6, at least in one direction, the support 102 forms a passage
108 (see, inter alia, figure 6) between a first space 110 and a surrounding space
111 outside the first space 110, wherein the seat 106 borders the first space 110.
The wire 204 held and/or supported by the seat 106 may be positioned in the first
space 110, as illustrated in figures 1 and 3. In some embodiments, the wheel 104 may
be pivotally attached to the support 102 at the passage 108. With reference to figure
6, in some embodiments the wheel 104 may be pivotally attached by way of a through
hole 107 of the support 102 positioned adjacent to the passage 108 and/or seat 106,
and, for example, by way of an attachment element inserted in the through hole 107,
such as a bolt, which may cooperate with a nut.
[0036] With reference to figure 5, the wheel 104 includes a circular center section 114
(or portions) and two or more outer sections 116 (or portions), or arms, adjoining
the center section 114. In some embodiments, the wheel 104 comprises four or more
outer sections 116 or arms adjoining the center section 114. The wheel 104 may e.g.,
have a substantially quadrilateral shape such as a substantially rectangular shape,
or a substantially rhombus shape. The circular center section 114 includes a center
112 of the wheel 104 through which the axis of rotation A1 extends, i.e., the wheel
104 is rotatable around the center 112 of the wheel 104 in relation to the support
102.
[0037] With reference to figure 5, starting from the center 112 of the wheel 104 the center
section 114 has a first radial extension r1, as illustrated in figure 5. Each outer
section 116 of the wheel 104 form a peak 118. Starting from an outer boundary 119
of the center section 114, the outer section 116 has a second radial extension r2
ending at the peak 118 of the outer section 116. In the radial direction 121, the
extension of the wheel 104 from the center 112 of the wheel 104 to the top of the
peak 118 is hence the first radial extension r1 plus the second radial extension r2.
[0038] With reference to figures 1, 3 and 5, in the radial direction 121, the extension
of the wheel 104 from the center 112 of the wheel 104 to the top the peak 118 is configured
to substantially cover the passage 108 at least in one direction when positioned,
i.e., when said extension is positioned, at the passage 108 so as to enclose the wire
204.
[0039] With reference to figure 5, in any radial direction 121, the length of the first
radial extension r1 exceeds the length of the second radial extension r2, i.e. the
length of the first radial extension r1 is longer than the length of second radial
extension r2. In some embodiments, the length of the first radial extension r1 may
be at least 50, 100 or 150 percent longer than the length of second radial extension
r2. However, other ratios between the first radial extension r1 and the second radial
extension r2 than said percentages are also possible.
[0040] With reference to figures 1 and 2, in some embodiments, the first radial extension
r1 of the center section 114 and/or the second radial extension r2 of the outer section
116 may extend in a substantially vertical direction, while the axis of rotation A1
of the wheel 104 may extend in a substantially horizontal direction, for example when
the support 102 is attached to the structure 300. The axis of rotation A1 of the wheel
104 may further be substantially parallel to an extension of a surface of the structure
300 of the building such that the wheel 104 may extend substantially perpendicular
to the surface of the structure 300 of the building, for example when the support
102 is attached to the structure 300.
[0041] However, with reference to figures 3 and 4, in some embodiments, the first radial
extension r1 of the center section 114 and/or the second radial extension r2 of the
outer section 116 may instead extend in a substantially horizontal direction, while
the axis of rotation A1 of the wheel 104 may extend in a substantially vertical direction,
for example when the support 102 is attached to the structure 300. The axis of rotation
A1 of the wheel 104 may further be substantially perpendicular to an extension of
the surface of the structure 300 of the building such that the wheel 104 may extend
substantially parallel to, but at a distance from, the surface of the structure 300
of the building, for example when the support 102 is attached to the structure 300.
[0042] With reference to figure 5, the wheel 104 forms two or more recesses 120. In the
direction of rotation R of the wheel 104 about the axis of rotation A1, a recess 120
of the two or more recesses 120 is positioned between every two outer sections 116
of the two or more outer sections 116 and/or between every two peaks 118, or every
two outer sections 116 or peak 118s are spaced apart by a recess 120 of the two or
more recesses 120. In the embodiment shown in figure 4, the wheel 104 has four outer
sections 116 with a respective peak 118 and four recesses 120, each recess 120 positioned
between two peaks 118. As the length of the first radial extension r1 is longer than
the length of second radial extension r2, the recess 120 is shallow. The recess 120
may be formed as an indentation between two peaks 118. For some embodiments, the outer
section 116 may have two or more peaks.
[0043] The recess 120 is configured to receive and hold one of the traveler device 202 and
safety line 206. While rotating and while holding one of the traveler device 202 and
safety line in one 120 of the two or more recesses 120, the wheel 104 is configured
to guide, i.e., let, one or more of the traveler device 202 and safety line 206 past
the support 102 so as to let one or more of the traveler device 202 and safety line
206 to move along the wire 204. Thus, the two or more recesses 120 of the wheel 104
enable the traveler device 202 and/or the safety line 206 to pass the support 102
and move along the wire 204 without getting caught by the support 102 and/or the wheel
104.
[0044] The support 102 may be attachable, or attached, either indirectly or directly, to
the structure 300 of the building and the wheel 104 is attachable, or attached, to
the support 102. For some embodiments, the support 102 may comprise two or more parts
102, 102a (see figure 1) attached to one another. The wheel 104 may be pivotable attachable
or attached to the support 102 with fastening means 114 which allows the wheel 104
to rotate about the imaginary axis of rotation A1. In some embodiments, the wheel
104 is movably attachable or attached to the support 102 so as to be rotatable in
relation to the support 102. The fastening means 114 may, e.g., comprise one or more
openings and one or more nuts or bults, as indicated in figures 1 to 4 and as mentioned
above. However, other fastening means 114 are possible.
[0045] With refence to figure 1, in some embodiments, the support 102 may include one or
more weakenings 122. The weakening 122 of the support 102 may include one or more
of the group of a notch 124, a recess, an opening and a deformation zone 126. For
example, the deformation zone 126 may comprise a zone 126 having a thinner material
thickness than the material thickness of the souring region 128 or the remainder 128
of the support 102. With the weakenings 122, the deformation of the support 102 due
to high forces can be controlled and/or tailored. For example, if a user connected
to the traveler device 202 falls when the traveler device 202 is guided by the apparatus
100, the weakenings 122 can provide a controlled deformation of the support 102 dampening
the impact of the fall on the user.
[0046] Figures 7 and 8 illustrate how the apparatus 100 guides the traveler device 202 and/or
safety line 206 (only a short length of the safety line 206 is illustrated) past the
support 102 according to embodiments of the invention. The support 102 may be attached
to the structure 300 of the building and may be arranged to keep the wire 204 spaced
apart from the structure 300 of the building, i.e., keep the wire 204 at a distance
from the structure 300 of the building. When the traveler device 202 slides along
the wire 204 in the first direction D1, the traveler device 202 and/or safety line
206 are/is guided by the wheel 104 by being received in a recess 120 of the wheel
104, as illustrated in figure 7. When the traveler device 202 and/or safety line 206
are/is moved further in the first direction D1, e.g., by a user pulling the safety
line 206, the wheel 104 rotates (in the direction of D2) around the axis of rotation
A1 and brings the traveler device 202 and/or safety line 206 at least partially into
the first space 110 where the wire 204 is supported, as illustrated in figure 8.
[0047] In the position of the wheel 104 illustrated in figure 8, the recess 120 of the wheel
104 opens the passage 108, i.e. the wheel 104 no longer covers the entire passage
108. The recess 120 of the wheel 104 provides space for the traveler device 202 and/or
safety line 206 to pass the support 102. Further rotation of the wheel 104 (in the
direction of D2) brings the traveler device 202 and/or safety line 206 out on the
other side of the support 102, where the traveler device 202 and/or safety line 206
can continue to slide along the wire 204.
[0048] In some embodiments, the support 102 and/or the wheel 104 may be formed from one
or more plates. The support 102 and/or the wheel 104 may e.g., be formed from a single
plate, for example by punching and/or bending. In some embodiments, one or more of
the support and wheel may be made of a material comprising or consisting of a metal
or a metal alloy. However, other materials are possible, such as materials comprising
or consisting of a polymer or a polymer composite.
[0049] As stated above, figures 1 to 8 also schematically illustrate embodiments of the
arrangement 200 according to the second aspect of the invention. The arrangement 200
includes one or more wires 204, and one or more apparatuses 100 according to any one
of the embodiments disclosed above or below.
[0050] Although the embodiments of the apparatus 100 and the arrangement 200 disclosed above
are illustrated when applied to a roof or wall, it is to be understood that embodiments
of the apparatus 100 and/or the arrangement 200 may be applied to other structures
of a building or a vessel.
[0051] The present invention is not limited to the above-described embodiments. Instead,
the present invention relates to, and encompasses all different embodiments being
included within the scope of the appended independent claim.
1. An apparatus (100) for supporting a wire (204) attachable to a structure (300) of
a building, the wire (204) being configured for the connection to a traveler device
(202) connectable to and slidable along the wire (204), the traveler device (202)
being attachable to a safety line (206) connectable to a user, wherein the apparatus
comprises
a support (102), and
a wheel (104),
wherein the support (102) is attachable to a structure (300) of a building,
wherein the wheel (104) is pivotally attached to the support (102) and rotatable about
an axis of rotation (A1) in relation to the support (102),
wherein the support (102) comprises a seat (106) for supporting the wire (204),
wherein the support (102) at least in one direction forms a passage (108) between
a first space (110) and a surrounding space (111) outside the first space (110),
wherein the seat (106) borders the first space (110),
wherein the wheel (104) has a center (112) through which the axis of rotation (A1)
extends,
wherein the wheel (104) comprises a circular center section (114) including the center
(112) of the wheel (104),
wherein starting from the center (112) of the wheel (104) the center section (114)
has a first radial extension (r1),
wherein the wheel (104) comprises two or more outer sections (116) adjoining the center
section (114),
wherein the outer section forms a peak (118),
wherein starting from an outer boundary (119) of the center section (114) the outer
section (116) has a second radial extension (r2) ending at the peak (118) of the outer
section (116),
wherein the extension of the wheel (104) from the center (112) of the wheel (104)
to the top the peak (118) is configured to cover the passage (108) at least in one
direction when positioned at the passage (108) so as to enclose the wire (204),
wherein the wheel (104) forms two or more recesses (120),
wherein in the direction of rotation (R) of the wheel (104) about the axis of rotation
(A1) a recess (120) of the two or more recesses (120) is positioned between every
two outer sections (116) of the two or more outer sections (116),
wherein the recess is configured to receive and hold one of the traveler device (202)
and safety line (206),
wherein while rotating and while holding one of the traveler device (202) and safety
line (206) in one of the two or more recesses (120) the wheel (104) is configured
to guide one or more of the traveler device (202) and safety line (206) past the support
(102) so as to let one or more of the traveler device (202) and safety line (206)
to move along the wire (204), and
wherein the first radial extension (r1) exceeds the second radial extension (r2).
2. An apparatus (100) according to claim 1, wherein the wheel (104) comprises four or
more outer sections (116) adjoining the center section (114),
3. An apparatus (100) according to claim 1 or 2, wherein the first radial extension (r1)
is at least 50 percent longer than the second radial extension (r2).
4. An apparatus (100) according to any one of the claims 1 to 3, wherein the first radial
extension (r1) is at least 100 percent longer than the second radial extension (r2).
5. An apparatus (100) according to any one of the claims 1 to 4, wherein the first radial
extension (r1) is at least 150 percent longer than the second radial extension (r2).
6. An apparatus (100) according to any one of the claims 1 to 5, wherein the first radial
extension (r1) of the center section (114) extends in a vertical direction.
7. An apparatus (100) according to any one of the claims 1 to 6, wherein the second radial
extension (r2) of the outer section (116) extends in a vertical direction.
8. An apparatus (100) according to any one of the claims 1 to 8, wherein the axis of
rotation (A1) of the wheel (104) extends in a horizontal direction.
9. An apparatus (100) according to any one of the claims 1 to 5, wherein the first radial
extension (r1) of the center section (114) extends in a horizontal direction.
10. An apparatus (100) according to any one of the claims 1 to 5 and 9, wherein the second
radial extension (r2) of the outer section (116) extends in a horizontal direction.
11. An apparatus (100) according to any oneof the claims 1 to 5, 9 and 10, wherein the
axis of rotation (A1) of the wheel (104) extends in a vertical direction.
12. An apparatus (100) according to any one of the claims 1 to 11, wherein the support
(102) is configured to keep the wire (204) spaced apart from the structure (300) of
the building.
13. An apparatus (100) according to any one of the claims 1 to 12, wherein the wheel (104)
is formed from one or more plates.
14. An apparatus (100) according to any one of the claims 1 to 13, wherein the wheel (104)
has a substantially quadrilateral shape.
15. An arrangement (200) comprising one or more wires (204), wherein the arrangement comprises
one or more apparatuses (100) according to any one of the claims 1 to 14.