Fixing device for crossarms

Abstract

To provide a fixture for an arm that can be more easily fixed to the arm.SOLUTION: A fixture 1 for an arm to fix other members to the arm 2 includes a main body 10, and a movable portion 11 having one end 11a rotatably attached to one end 10a of the main body 10 and the other end 11b fixed to the other end 10b of the main body 10, and the other end 11b of the movable portion 11 is fixed to the other end 10b of the main body 10 to form a rectangular frame that can surround at least the arm 2, and the other end 11b of the movable portion 11 is fixed to the other end 10b of the main body 10 by pressing the other end 11b of the movable portion 11 against the other end 10b of the main body 10.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a fixture for a bracelet for fixing another member to the bracelet.

Background Art

[0002] As this type of conventional fixture for a bracelet, the configurations shown in Patent Documents 1 and 2 below can be cited.

[0003] Patent Document 1 discloses a fixing fitting having a side U shape and bolt insertion holes penetrating through its upper piece and lower piece. The fixing fitting is hooked on the bracelet by inserting the bracelet between the upper piece and the lower piece by remote operation, and is fixed to the bracelet by inserting a bolt through the bolt insertion hole and screwing a nut. An anti-bird damage tool for a utility pole bracelet can be attached to the upper part of the fixing fitting.

[0004] Patent Document 2 discloses a C-shaped support fitting having a pair of gripping pieces arranged to face each other so that a bracelet can be introduced from its side surface side, and a connecting piece connecting the base ends of these gripping pieces. A bolt member is rotatably attached to one of the gripping pieces, and a notch portion into which the bolt member can be introduced from the outer peripheral direction is provided in the other gripping piece. After the bolt member is introduced into the notch portion, the support fitting is fixed to the bracelet by fastening a nut member screwed onto the tip of the bolt member to the other gripping piece. A needle-shaped anti-bird damage tool for a bracelet can be attached to one of the gripping pieces.

Prior Art Documents

Patent Documents

[0005] [[ID=3I]]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] In the conventional configurations disclosed in Patent Documents 1 and 2, remote operation of bolts and / or nuts is required to fix the fastener to the bracket, resulting in low work efficiency.

[0007] This invention was made to solve the above-mentioned problems, and one of its objectives is to provide a fixing device for a crossarm that can be more easily attached to the crossarm. [Means for solving the problem]

[0008] The fixing device for a cross arm according to the present invention, in one embodiment, is a fixing device for a cross arm for fixing another member to a cross arm, comprising a main body and one end of which is attached to the other end of the main body. connect The device comprises a movable part whose other end is fixed to the other end of the main body, and is configured such that the other end of the movable part is fixed to the other end of the main body, thereby forming a rectangular frame that can surround at least the arm, and is configured such that the other end of the movable part is fixed to the other end of the main body by being pressed against it. [Effects of the Invention]

[0009] According to one embodiment of the fixing device for the arm of the present invention, the other end of the movable part is pressed against the other end of the main body, thereby fixing the other end of the movable part to the other end of the main body, making it easier to fix to the arm. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing a typical use of a fixing device for a crossarm according to an embodiment of the present invention. [Figure 2] Figure 1 is a front view of the fastener. [Figure 3] This is a right side view showing a fixing device for a crossarm according to an embodiment of the present invention. [Figure 4] Figure 3 is a top view showing the fastener. [Figure 5] Figure 3 is a perspective view of the fixing device as seen from the front, upper right. [Figure 6] Figure 3 is a perspective view of the fixing device from the front, right, and slightly below. [Figure 7] Figure 3 is a perspective view of the fastener from the rear, upper right. [Figure 8] Figure 3 is a perspective view of the fastener from the rear, lower right. [Figure 9] This is an explanatory diagram showing the elastic deformation of the front edge when the fastener shown in Figure 3 is attached to the bracket. [Figure 10] This is an explanatory diagram showing a first modified example of the engaging projection and hole shown in Figure 3. [Figure 11] This is an explanatory diagram showing a second modified example of the engaging projection and hole shown in Figure 3. [Modes for carrying out the invention]

[0011] The embodiments for carrying out the present invention will be described below with reference to the drawings. The present invention is not limited to each embodiment, and can be materialized by modifying the components without departing from the spirit of the invention. Furthermore, various inventions can be formed by appropriately combining the multiple components disclosed in each embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components from different embodiments may be appropriately combined.

[0012] In the following description, terms indicating directions such as front / back, up / down, and left / right may be used. These terms indicating directions are used based on typical uses of the fastener (see Figures 1 and 2) for ease of understanding, but do not limit the scope of the present invention. That is, the uses of the fastener are not limited to its typical uses, and the fastener may be used in other orientations as well, which may be within the scope of the present invention. When the first, second, and third axes, which are orthogonal to each other, are defined, front / back may be synonymous with one direction and the other direction along the first axis, up / down may be synonymous with one direction and the other direction along the second axis, and left / right may be synonymous with one direction and the other direction along the third axis.

[0013] FIG. 1 is a perspective view showing a typical usage mode of the fixture 1 for a cross arm according to an embodiment of the present invention, and FIG. 2 is a front view of the fixture 1 in FIG. 1. As shown in FIGS. 1 and 2, the fixture 1 for a cross arm according to an embodiment of the present invention is a member for fixing another member 3 to the cross arm 2.

[0014] The cross arm 2 can be a member attached to a structure such as a utility pole. The cross arm 2 may extend so as to intersect the length direction of the structure, and more specifically, may extend orthogonally to the length direction of the structure. The cross arm 2 may be arranged at a height that cannot be reached by the hand of an operator standing on the ground. As shown in the drawing, the cross arm 2 can be a square pipe.

[0015] The other member 3 fixed by the fixture 1 to the cross arm 2 is arbitrary. In FIGS. 1 and 2, a bird damage prevention device 30 is shown as the other member 3. Generally, the bird damage prevention device 30 is a member for preventing birds such as crows or pigeons from flying to the cross arm 2. As shown in the drawing, the bird damage prevention device 30 may have a belt-shaped or plate-shaped base 31 and a plurality of needle bodies 32 standing from the base 31. The belt-shaped or plate-shaped refers to something having a predetermined width, length, and thickness, and may include something having a plurality of openings like the base 31 shown in the drawing. The length direction of the base 31 may be synonymous with the length direction of the cross arm 2. The needle bodies 32 are arranged at intervals from each other in the length direction and width direction of the base 31. Examples of the other member 3 fixed by the fixture 1 to the cross arm 2 include a nest prevention device and a crown snow prevention device in addition to the bird damage prevention device 30.

[0016] The fixture 1 can fix another member 3 to the upper part of the cross arm 2. In the illustrated mode, the fixture 1 fixes the bird damage prevention device 30 to the upper part of the cross arm 2. Depending on the usage mode, the fixture 1 may fix another member 3 to the side or lower part of the cross arm 2. In the illustrated mode, a pair of fixtures 1 are arranged at both ends of the bird damage prevention device 30, but the number of fixtures 1 used is arbitrary.

[0017] As will be explained below, the fastener 1 of this embodiment is configured to be fixed to the crossarm 2 with simpler operation than the operation of bolts and / or nuts required in conventional configurations.

[0018] Next, with reference to Figures 3 to 11, the configuration of the fixing device 1 for the arm according to an embodiment of the present invention will be described in more detail.

[0019] Figure 3 is a right side view showing a fixing device 1 for a bracket according to an embodiment of the present invention, and Figure 4 is a top view showing the fixing device 1 of Figure 3. Figure 5 is a perspective view of the fixing device 1 of Figure 3 viewed from the front right diagonally upper, Figure 6 is a perspective view of the fixing device 1 of Figure 3 viewed from the front right diagonally lower, Figure 7 is a perspective view of the fixing device 1 of Figure 3 viewed from the rear right diagonally upper, and Figure 8 is a perspective view of the fixing device 1 of Figure 3 viewed from the rear right diagonally lower. Figure 9 is an explanatory diagram showing the elastic deformation of the front edge portion 14F when the fixing device 1 of Figure 3 is attached to the bracket 2. Figure 10 is an explanatory diagram showing a first modified example of the engaging projection 130 and hole portion 131 of Figure 3, and Figure 11 is an explanatory diagram showing a second modified example of the engaging projection 130 and hole portion 131 of Figure 3. Note that the left side of the fixing device 1 is shown symmetrically to the right side.

[0020] As shown in Figures 3 to 8, the fastener 1 of this embodiment has a main body 10 and a movable part 11. One end 11a of the movable part 11 is rotatably attached to one end 10a of the main body 10. The other end 11b of the movable part 11 is fixedly provided to the other end 10b of the main body 10. The fastener 1 is configured to form a rectangular frame that can surround at least the perimeter of the arm bracket 2 when the other end 11b of the movable part 11 is fixed to the other end 10b of the main body 10. In the illustrated embodiment, the fastener 1 is configured to form a square frame, but the fastener 1 may also be configured to form a rectangular frame that is elongated in the front-to-back or up-to-down direction.

[0021] The method for rotatably attaching one end 11a of the movable part 11 to one end 10a of the main body 10 is arbitrary. In the illustrated embodiment, a shaft portion 120 (see Figure 7) is provided on one end 11a of the movable part 11, and a C-shaped gripping portion 121 is provided on one end 10a of the main body 10, and the movable part 11 is rotatably mounted by the gripping portion 121 gripping the shaft portion 120. Alternatively, shaft holes are provided on one end 11a of the movable part 11 and one end 10a of the main body 10 so as to overlap each other, and a shaft body may be inserted through these shaft holes.

[0022] In this embodiment, the fixing device 1 is configured such that the other end 11b of the movable part 11 is pressed against the other end 10b of the main body 10, thereby fixing the other end 11b of the movable part 11 to the other end 10b of the main body 10. In other words, with the fixing device 1 of this embodiment, the operation of bolts and nuts that was required in the conventional configuration is unnecessary, and it can be fixed to the arm bracket 2 more easily.

[0023] Such a configuration can be realized in various ways, but for example, it can be realized by providing an engaging projection 130 on either the other end 11b of the movable part 11 or the other end 10b of the main body 10, and providing a hole 131 on the other end into which the engaging projection 130 engages.

[0024] As is particularly evident in Figure 3, the engaging projection 130 may have a shaft portion 130a and an engaging portion 130b provided at the tip of the shaft portion 130a. The engaging portion 130b has a tapered outer shape. The engaging portion 130b may have a planar outer surface, or it may have an arc-shaped outer surface 130c, as is particularly evident in Figure 6. The rear end of the engaging portion 130b is larger than the shaft portion 130a. The engaging projection 130 and the hole portion 131 may be arranged such that the rear end of the engaging portion 130b engages with the surrounding wall surface of the hole portion 131 after the engaging portion 130b of the engaging projection 130 enters the hole portion 131. In the illustrated embodiment, the engaging projection 130 is provided at the other end 10b of the main body 10, and the hole portion 131 is provided at the other end 11b of the movable portion 11. However, conversely, a hole 131 may be provided at the other end 10b of the main body 10, and an engaging projection 130 may be provided at the other end 11b of the movable part 11.

[0025] Alternatively, the engaging projection 130 and the hole 131 may take the form shown in Figure 10 or Figure 11.

[0026] In the first modified example (cable band shape) shown in Figure 10, the engaging projection 130 has a shaft portion 130a and a plurality of first teeth 130d provided on the side surface of the shaft portion 130a. Each of the first teeth 130d has a plane 130d1 extending in the width direction of the shaft portion 130a and an inclined surface 130d2 connecting the tip of the plane 130d1 to the base end of the plane 130d1 of another adjacent first tooth 130d in the extending direction of the shaft portion 130a. The hole portion 131 has a plurality of second teeth 131a provided on the inner wall of the hole portion 131. Each of the second teeth 131a has a plane 131a1 extending in the width direction of the hole 131 and an inclined surface 131a2 connecting the tip of the plane 131a1 to the base end of the plane 131a1 of another adjacent second tooth 131a in the depth direction of the hole 131. When the other end 11b of the movable part 11 is pressed against the other end 10b of the main body 10, the first and second teeth 130d, 131a engage, and the other end 11b of the movable part 11 is fixed to the other end 10b of the main body 10. These first and second teeth 130d, 131a allow the engaging projection 130 to be pushed into the hole 131, while restricting the pulling out of the engaging projection 130 from the hole 131.

[0027] In the second modified example (non-adjustable button shape) shown in Figure 11, the engaging projection 130 has a shaft portion 130a and a projection 130e protruding from the side surface of the shaft portion 130a. In the illustrated embodiment, the projection 130e protrudes to both sides in the width direction of the shaft portion 130a, but the projection 130e may protrude to only one side. The projection 130e has a plane 130e1 extending in the width direction of the shaft portion 130a and an inclined surface 130e2 connecting the tip of the plane 130e1 to the side surface of the shaft portion 130a. The hole 131 has a recess 131b provided on the inner wall of the hole 131. When the other end 11b of the movable portion 11 is pressed against the other end 10b of the main body 10, the projection 130e engages with the recess 131b, and the other end 11b of the movable portion 11 is fixed to the other end 10b of the main body 10. These protrusions 130e and recesses 131b allow the engaging protrusion 130 to be pushed into the hole 131, while restricting the pulling out of the engaging protrusion 130 from the hole 131.

[0028] In addition to these first and second modifications, other configurations may be adopted, such as a magnetic fixing configuration, in which the other end 11b of the movable part 11 is pressed against the other end 10b of the main body 10, thereby fixing the other end 11b of the movable part 11 to the other end 10b of the main body 10. Such configurations do not necessarily involve engagement.

[0029] The main body 10 may have a U-shape that is open downwards as a whole. More specifically, the main body 10 may have an upper edge portion 14U, a front edge portion 14F extending downwards from the front end of the upper edge portion 14U, and a rear edge portion 14R extending downwards from the rear end of the upper edge portion 14U. The upper edge portion 14U may be positioned on the upper part of the arm 2. The front edge portion 14F and the rear edge portion 14R may be spaced apart from each other and extend parallel to each other in the longitudinal direction (front-to-back direction) of the upper edge portion 14U. The front edge portion 14F and the rear edge portion 14R may face each other (they may be positioned so as to overlap each other when viewed along the longitudinal direction of the upper edge portion 14U). The front edge portion 14F may be the edge portion positioned on the side where the operation to fix the other end 11b of the movable part 11 to the other end 10b of the main body 10 is performed.

[0030] In the illustrated embodiment, the movable part 11 has a lower edge portion 14L whose rear end is rotatably attached to the lower end of the rear edge portion 14R. The front end of the lower edge portion 14L is fixedly attached to the lower end of the front edge portion 14F. That is, in the illustrated embodiment, the lower end of the rear edge portion 14R constitutes one end 10a of the main body 10, the lower end of the front edge portion 14F constitutes the other end 10b of the main body 10, the rear end of the lower edge portion 14L constitutes one end 11a of the movable part 11, and the front end of the lower edge portion 14L constitutes the other end 11b of the movable part 11. The upper edge portion 14U, the front edge portion 14F, the rear edge portion 14R, and the lower edge portion 14L may be strip-shaped or plate-shaped portions having a predetermined length, width, and thickness.

[0031] In the illustrated embodiment, an engaging projection 130 protrudes downward from the lower end of the front edge portion 14F, and a hole 131 into which the engaging projection 130 can engage is provided at the front end of the lower edge portion 14L.

[0032] The front edge portion 14F is provided with a return piece 15 that protrudes rearward from the lower part of the front edge portion 14F. In this embodiment, the fixing device 1 is configured such that at least the front edge portion 14F is made of an elastic material, allowing the return piece 15 to be displaced forward by the elastic deformation of the front edge portion 14F (see Figure 9(b)), and the arm 2 can be held between the upper edge portion 14U and the return piece 15 by the restoration of the front edge portion 14F (see Figure 9(c)). This prevents the main body 10 from unintentionally falling off after it has been attached to the arm 2. Furthermore, when pressing the other end 11b of the movable part 11 against the other end 10b of the main body 10 to fix it, the movement of the main body 10 can be restricted, and the pressing operation can be carried out efficiently.

[0033] The elastic material constituting the front edge portion 14F can be any resin or metal. From the viewpoint of flexural elasticity, it is preferable to form the front edge portion 14F with resin. As the resin, thermoplastic resins such as polyethylene, polypropylene, and elastomer can be used. Although not limited, the upper edge portion 14U and the rear edge portion 14R may be formed integrally with the front edge portion 14F using the same material as the front edge portion 14F. The lower edge portion 14L (movable portion 11) may be formed from the same material as the front edge portion 14F (main body 10).

[0034] The distance D1 (see Figure 3) between the tip of the return piece 15 and the inner surface of the rear edge 14R is narrower than the distance D2 between the inner surface of the front edge 14F and the inner surface of the rear edge 14R in a position where the return piece 15 is not provided. Furthermore, the distance D1 (see Figure 3) between the tip of the return piece 15 and the inner surface of the rear edge 14R is narrower than the width of the bracket 2 to which it is attached.

[0035] Here, at least one of the front edge portion 14F and the rear edge portion 14R may be provided with at least one thickened portion 160. The thickened portion 160 is a portion of the front edge portion 14F and / or the rear edge portion 14R whose thickness is partially increased. The portion where the thickened portion 160 is not provided, i.e., the portion of the front edge portion 14F and / or the rear edge portion 14R whose thickness is partially reduced, can be called a thinned portion 161. In the illustrated embodiment, as is particularly shown in Figure 3, the thickened portion 160 is provided on the upper and lower parts of the front edge portion 14F and the upper and lower parts of the rear edge portion 14R. In other words, a thinned portion 161 is provided in the central part of the front edge portion 14F and the rear edge portion 14R in the longitudinal direction. The inner surface 160a of the thickened portion 160 is a plane provided at a position that protrudes further inward from the frame than the inner surface 161a of the thinned portion 161. In this embodiment, the fastener 1 can be positioned such that the inner surface 160a of the thickened portion 160 is in contact with the side surface of the arm bracket 2. By providing such a thickened portion 160, the accuracy of the internal dimensions of the fastener 1 relative to the external dimensions of the arm bracket 2 is improved. Furthermore, by providing a thinned portion 161 on the front edge portion 14F, the front edge portion 14F can be elastically deformed more smoothly.

[0036] The movable part 11 may be provided with a spring portion 17 that can stretch due to the stress when the other end 11b of the movable part 11 is pressed against the other end 10b of the main body 10. In the illustrated embodiment, the spring portion 17 is provided on the lower side portion 14L that constitutes the movable part 11, and the spring portion 17 can stretch in the longitudinal direction of the lower side portion 14L. The spring portion 17 is not limited, but can be constructed, for example, by a bellows structure. When the engaging portion 130b of the engaging projection 130 enters the hole portion 131, the spring portion 17 stretches, allowing the engaging portion 130b to enter the hole portion 131 more smoothly.

[0037] The other end 10b of the main body 10 may be provided with a first projection 181 that protrudes outward from the frame. The other end 11b of the movable part 11 may be provided with a second projection 182 that protrudes outward from the frame. The fixing device 1 of this embodiment is configured to press the other end 11b of the movable part 11 against the other end 10b of the main body 10 by sandwiching these first and second projections 181 and 182. This makes it easier to perform fixing work remotely using tools such as insulated pliers.

[0038] In the illustrated embodiment, the first projection 181 protrudes forward from the lower part of the front edge 14F. The second projection 182 protrudes forward from the front end of the lower edge 14L. Multiple stepped portions 181a, 182a are provided on the upper surface of the first projection 181 and the lower surface of the second projection 182. These stepped portions 181a, 182a can improve the engagement between the first and second projections 181, 182 and the device.

[0039] The second projection 182 may extend parallel to the longitudinal direction of the lower edge 14L, but in the illustrated embodiment, the second projection 182 extends at an angle with respect to the longitudinal direction of the lower edge 14L. More specifically, the second projection 182 extends at an angle with respect to the longitudinal direction of the lower edge 14L in a direction that pulls the other end 11b of the movable part 11 away from the other end 10b of the main body 10. When the direction in which the other end 11b of the movable part 11 is pressed against the other end 10b of the main body 10 is considered upward, the direction of pulling away can be understood as downward. The inclined extension of the second projection 182 improves the workability of rotating the lower edge 14L from a distance and makes the fixing work easier.

[0040] The amount of protrusion of the second projection 182 from the front end of the lower edge portion 14L is longer than the amount of protrusion of the first projection 181 from the lower part of the front edge portion 14F. This improves the ease of rotating the lower edge portion 14L from a distance and makes the fixing work easier.

[0041] A third projection 183 may be provided on the upper part of the front edge 14F, projecting outward from the frame. This third projection 183 can be gripped with a tool such as insulated pliers when attaching the main body 10 to the arm 2. The third projection 183 protrudes forward from the upper part of the front edge 14F. The third projection 183 extends diagonally downward from the upper part of the front edge 14F. Multiple stepped portions 183a are provided on the upper surface of the third projection 183 to improve the engagement between the third projection 183 and the tool.

[0042] Next, the method of using the fixing device 1 will be explained with reference to Figure 9. Here, an example of fixing the bird damage prevention device 30 to the arm bracket 2 using the fixing device 1 will be explained. First, as shown in Figure 9(a), with the base 31 of the bird damage prevention device 30 resting on the upper surface of the arm bracket 2, the fixing device 1 is carried up to the top of the arm bracket 2. At this time, the fixing device 1 can be carried by gripping the third projection 183 with a tool such as insulated pliers. As explained using Figures 1 and 2, the needle bodies 32 are spaced apart from each other in the longitudinal and widthwise directions of the base 31. The fixing device 1 is positioned so that its upper edge portion 14U enters between the needle bodies 32. That is, the width of the upper edge portion 14U can be narrower than the spacing between the needle bodies 32.

[0043] As described above, the return piece 15 protrudes from the lower part of the front edge 14F. When the fixing device 1 is pushed down from the state shown in Figure 9(a), the front edge 14F is elastically deformed by the interaction between the return piece 15 and the arm 2, as shown in Figure 9(b). When the fixing device 1 is pushed down further from the state shown in Figure 9(b) until the return piece 15 exceeds the arm 2, the front edge 14F is restored to its original state, as shown in Figure 9(c). At this time, the arm 2 can be held between the upper edge 14U and the return piece 15.

[0044] After reaching the state shown in Figure 9(c), the second projection 182 of the lower edge 14L (movable part 11) is engaged with a tool such as insulated pliers, and the lower edge 14L is rotated. At this time, it is not necessary to grip the second projection 182 with the tool; it is sufficient to simply hook the second projection 182 onto the tool. When the front end of the lower edge 14L (the other end 11b of the movable part 11) is sufficiently close to the lower end of the front edge 14F (the other end 10b of the main body 10), the front end of the lower edge 14L (the other end 11b of the movable part 11) is pressed against the lower end of the front edge 14F (the other end 10b of the main body 10) by clamping the first and second projections 181 and 182 with a tool such as insulated pliers, thereby fixing them together. Furthermore, the lock can be released by pulling the front end of the lower edge portion 14L (the other end 11b of the movable portion 11) forward so as to extend the spring portion 17.

[0045] Although preferred embodiments of the present invention have been described in detail above with reference to the attached drawings, the present invention is not limited to these examples. It is clear to any person with ordinary skill in the art to which the present invention belongs that various modifications or alterations can be conceived within the scope of the technical idea described in the claims, and these are also understood to fall within the technical scope of the present invention.

[0046] For example, in the embodiment, the bird damage prevention device 30 is described as being fixed to the upper part of the arm 2 by attaching the fixing device 1 to the outer circumference of the base 31 and the arm 2. However, the fixing device 1 may be configured such that the bird damage prevention device 30 can be attached to its upper part. In this case, the bird damage prevention device 30 can be attached to the upper part of the fixing device 1 before or after the fixing device 1 is attached to the outer circumference of the arm 2.

[0047] Furthermore, in the embodiment, the main body 10 is described as having an upper edge portion 14U, a front edge portion 14F, and a rear edge portion 14R, and the movable portion 11 has a lower edge portion 14L. However, the main body 10 may have an upper edge portion 14U and a front edge portion 14F, and the movable portion 11 may have a rear edge portion 14R and a lower edge portion 14L. In this case, the upper end of the rear edge portion 14R may be rotatably connected to the rear end of the upper edge portion 14U. [Explanation of Symbols]

[0048] 1: Fixture 2: Bracelet 3: Other components 10: Main unit 10a: One end of the main body 10b: Other end of the main body 11: Moving part 11a: One end of the movable part 11b: Other end of the movable part 14F: Front part 14R: Rear part 14U: Top edge 15: return piece 17: Spring part 181: First Protrusion 182: Second Pier

Claims

1. A fastening device for a crossarm, used to secure other components to the crossarm, The main unit and A movable part having one end rotatably connected to one end of the main body and the other end fixedly attached to the other end of the main body. Equipped with, The other end of the movable part is fixed to the other end of the main body, thereby forming a rectangular frame that can surround at least the arm. The other end of the movable part is pressed against the other end of the main body, thereby fixing the other end of the movable part to the other end of the main body. The main body has an upper edge portion, a front edge portion extending downward from the front end of the upper edge portion, and a rear edge portion extending downward from the rear end of the upper edge portion. The front edge is provided with a return piece that protrudes from the lower part of the front edge toward the rear, and is configured to hold the arm between the upper edge and the return piece. Fixtures.

2. The front edge portion is made of an elastic material and is configured such that the forward displacement of the return piece is permitted by the elastic deformation of the front edge portion. The fastener according to claim 1.

3. A fastening device for an arm for fixing other members to the arm, The main unit and A movable part having one end rotatably connected to one end of the main body and the other end fixedly attached to the other end of the main body. Equipped with, The other end of the movable part is fixed to the other end of the main body, thereby forming a rectangular frame that can surround at least the arm. The other end of the movable part is pressed against the other end of the main body, thereby fixing the other end of the movable part to the other end of the main body. The movable part is provided with a spring portion that can stretch due to the stress when the other end of the movable part is pressed against the other end of the main body. Fixtures.

4. A fastening device for an arm for fixing another member to the arm, The main unit and A movable part having one end rotatably connected to one end of the main body and the other end fixedly attached to the other end of the main body. Equipped with, The other end of the movable part is fixed to the other end of the main body, thereby forming a rectangular frame that can surround at least the arm. The other end of the movable part is pressed against the other end of the main body, thereby fixing the other end of the movable part to the other end of the main body. The other end of the main body is provided with a first projection that protrudes outward from the frame, The other end of the movable part is provided with a second projection that protrudes outward from the frame. The configuration is such that the other end of the movable part can be pressed against the other end of the main body by sandwiching the first and second protrusions. Fixtures.

Images