Cable Retainer

Abstract

To provide a thin cable holder capable of firmly and detachably holding a cable. [Solution] A cable holder (1) detachably holds a cable (C) and attaches it to an attachment surface (W). The cable holder (1) includes a base member (2), a belt member (3) rotatably attached to the base member (2), a plate-shaped magnet (4) fixed to the base member (2), and a fixture (5) that fixes the magnet (4) to the base member (2). The base member (2) has a plate-shaped main body (10), a support portion (11) that rotatably supports the belt member (3), a locking portion (12) that detachably locks the belt member (3), and a fixing hole (13) formed through the main body (10). The belt member (3) is locked to the main body (10) by the locking portion (12). The fixing device (5) has a screw (5a) inserted through the fixing hole (13) and a plate-shaped nut (5b) that screws into the screw (5a). The magnet (4) is fixed to the surface of the main body (10) by screwing the plate-shaped nut (5b) into the screw (5a).

Description

[Technical Field]

[0001] The present invention relates to a cable retainer, and more particularly to a cable retainer for holding a cable and attaching it to a mounting surface. [Background technology]

[0002] Bearing replacement work involves removing deteriorated bearings and replacing them with new ones to ensure the safety and durability of bridge structures. Bearings are located between the bridge girder and the bridge or abutment. Therefore, the work space for bearing replacement work is often a narrow, enclosed environment. Typically, at work sites for bearing replacement work, many power tools are used at the same time, so power cables are stretched across the scaffolding, work floor, etc., and each power tool is connected to a power source. However, in narrow work sites, if power cables are placed on the scaffolding, work floor, etc., there is a risk that workers will trip over the power cables. For this reason, there has been a demand for a system that can hold the power cables and attach them to the ceiling or wall of the scaffolding.

[0003] For example, Patent Document 1 discloses a cable holder with a magnet that can bind cables and secure them to a mounting surface such as a ceiling or wall. This cable holder includes a base member (case) equipped with a magnet and a belt with a hook-and-loop fastener, and the belt is inserted through a belt insertion portion of the base member. By binding the cables with the belt and causing the magnet of the base member to be attracted to the ceiling or wall, the cables can be attached to any mounting surface.

[0004] Furthermore, for example, Patent Document 2 discloses a cable holder with suction cups that can bind cables (harnesses) and secure them to a mounting surface such as a vehicle body. This cable holder includes a base member (offset plate) to which suction cups with magnetic layers are attached, and a belt (band) with sawtooth-shaped locking protrusions. The cable is fastened to the base member by locking the locking protrusions of the belt with the locking pieces of the base member. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-004087 [Patent Document 2] Japanese Patent Application Publication No. 2017-099117 Summary of the Invention [Problem to be solved by the invention]

[0006] Generally, at work sites such as bearing replacement work, power cables are often moved depending on the work process. When moving a power cable, workers wind the power cable around an electrical drum and carry the electrical drum. In this case, there was a demand for a way to wind the power cable around an electrical drum with multiple cable holders attached to the power cable at equal intervals.

[0007] However, in a cable holder like that described in Patent Document 1, the cable is held loosely by a hook-and-loop fastener. This means that there is a risk that the cable holder may become misaligned in the longitudinal direction of the cable. In addition, because the belt is inserted through the belt insertion portion, there is a risk that the orientation of the cable holder may become misaligned in the circumferential direction of the cable. Furthermore, in the cable holder as in Patent Document 2, the suction cup is thick, so when the cable holder is attached to the power cable, there is a risk that the power cable cannot be wound up by the electric drum. Furthermore, if the sawtooth locking protrusion is fastened to the locking piece of the base member, there is a risk that it will become impossible to remove from the power cable.

[0008] The present invention has been made in view of the above-mentioned problems, and aims to provide a thin cable holder that can firmly and detachably hold a cable. [Means for solving the problem]

[0009] and a fixing hole formed through the main body, the belt member being fixed to the surface of the main body by the fixing part. The fixing hole has a screw inserted through the fixing hole and a plate-shaped nut threaded onto the screw inserted through the fixing hole, and the magnet is fixed to the surface of the main body by the screw threading together with the plate-shaped nut.

[0010] According to the cable holder, the rotatable belt member is detachably engaged with the base member, thereby enabling the cable to be firmly and detachably held in the cable holder. In addition, the plate-shaped magnet is fixed to the base member with a plate-shaped nut, allowing the overall thickness of the cable holder to be thin. Therefore, the cable can be firmly and detachably held while being thin.

[0011] In addition, the magnet may be a neodymium magnet, and a through hole through which the screw is inserted may be formed in the magnet, and the screw inserted into the through hole may be threaded into the nut via the fixing hole. In this way, by using a neodymium magnet, even when holding a heavy cable, it is possible to prevent the cable holder from coming off the mounting surface such as a ceiling or wall. In addition, because the screw is inserted into the magnet, the thickness of the cable holder can be made even thinner.

[0012] In addition, it is preferable that the tip end of the screw does not protrude outward beyond the nut, and the base end of the screw does not protrude outward beyond the magnet. In this way, the tip of the screw does not protrude from the nut, which prevents the cable from being damaged by the tip of the screw. Also, because the base end of the screw does not protrude from the magnet, the thickness of the cable holder can be made even thinner.

[0013] The thickness of the nut is preferably thinner than the thickness of the main body. In this way, because the nut is thin, the thickness of the cable holder can be made even thinner.

[0014] In addition, the belt member has a plurality of fitting holes aligned in the length direction of the belt member, and the locking portion has a fitting protrusion protruding from the back surface of the main body portion and fitting into one of the plurality of fitting holes, and a pressing piece provided on the back surface of the main body portion and pressing the belt member in the thickness direction of the main body portion, and the plate thickness of the nut is preferably thinner than the length of the pressing piece in the thickness direction of the main body portion. In this way, because the nut is thin, the thickness of the cable holder can be made even thinner. [Effects of the Invention]

[0015] According to the present invention, the cable can be firmly and detachably held in a thin design. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 10 is a diagram showing the cable holder attached to the attachment surface. [Figure 2] FIG. 10 is a view showing the cable holder in a wound state. [Figure 3] FIG. 2 is a perspective view of the cable holder of the present embodiment. [Figure 4] FIG. 2 is a perspective view of the cable holder, showing the rear side. [Figure 5] FIG. 2 is a perspective view of the cable holder, showing a state in which the cable is held. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. 2 is a side view of the cable holder, showing the state in which the cable is held. DETAILED DESCRIPTION OF THE INVENTION

[0017] A cable holder 1 according to an embodiment of the present invention will be described below with reference to FIGS.

[0018] <Cable holder> As shown in Fig. 1, the cable holder 1 of this embodiment is used to detachably hold a cable C and attach it to an attachment surface W. The cable holder 1 is attached to, for example, the ceiling or wall surface of scaffolding at a bearing replacement construction site. Multiple cable holders 1 are attached to the cable C at equal intervals (for example, at 1 m intervals). The mounting surface W to which the cable holder 1 is attached is not limited to the ceiling or wall surface of the construction site, but may be any surface other than the construction site as long as it has magnetic properties.

[0019] The cable C is, for example, a power cable, and multiple cable holders 1 are detachably attached to the cable C. As shown in Figure 2, the cable C is wound up and stored on an electric drum D with the cable holders 1 attached at equal intervals. Since the cable holder 1 is configured to be thin, the cable C can be wound onto the electric drum D with the cable holder 1 attached to the cable C.

[0020] As shown in Figure 3, the cable holder 1 comprises a base member 2, a flexible belt member 3 rotatably attached to the base member 2, a plate-shaped magnet 4 fixed to the base member 2, and a fixing device 5 that fixes the magnet 4 to the base member 2. The cable C is detachably held on the base member 2 by a belt member 3. The base member 2, with the cable C held thereon, is detachably magnetically attached to the attachment surface W by a magnet 4.

[0021] As shown in FIG. 3, the base member 2 is a member for attaching the belt member 3 and the magnet 4, and is a thin resin member. 4 and 6, the base member 2 has a plate-shaped main body portion 10 extending in a predetermined direction, a support portion 11 that rotatably supports the belt member 3, a locking portion 12 that detachably locks the belt member 3, and a fixing hole 13 that fixes the magnet 4 with a fixing device 5. As shown in FIG. 5, the base member 2 holds the cable C together with the belt member 3. In other words, when the belt member 3 is locked by the locking portion 12, the cable C is held by the belt member 3 so as to be pressed against the main body portion 10.

[0022] 6, the main body 10 is a plate-shaped resin member. A magnet 4 is attached to a front surface 10a of the main body 10. A belt member 3 is attached to a back surface 10b of the main body 10. As shown in Fig. 7, the main body 10 has a rectangular shape when viewed from above. A support portion 11 is formed at one longitudinal end 10c on the back surface 10b of the main body 10. A locking portion 12 is formed at the other longitudinal end 10d on the back surface 10b of the main body 10. Furthermore, as shown in Fig. 6, a fixing hole 13 is formed in the longitudinal center portion of the back surface 10b of the main body 10.

[0023] As shown in FIG. 6 , the support portion 11 is formed on the back surface 10b of the main body portion 10 and is a bearing that supports a shaft portion 21 of the belt member 3, which will be described later. The support portion 11 is a resin member that is formed integrally with the main body portion 10. The support portion 11 has a shaft hole that penetrates the main body portion 10 in the short direction, and rotatably supports the shaft portion 21. In other words, the belt member 3 rotates around the shaft portion 21 that extends in the short direction of the main body portion 10. 7, the support part 11 is provided at one end 10c in the extension direction of the main body part 10. The belt member 3 is supported by the support part 11 in a switchable manner between an open state (FIG. 8) in which the cable C is not held and a held state (FIG. 9) in which the cable C is held.

[0024] 6, the locking portion 12 is formed on the back surface 10b of the main body portion 10 and supports the free end side of the belt member 3. The locking portion 12 is a resin member formed integrally with the main body portion 10. The locking portion 12 has a fitting protrusion 12a that protrudes from the back surface 10b of the main body portion 10 and fits into one of the fitting holes 20, and a pressing piece 12b that is provided on the back surface 10b of the main body portion 10 and presses the belt member 3. 7, the locking portion 12 is provided at the other end 10d in the extension direction of the main body portion 10. The belt member 3 is locked to the main body portion 10 by the locking portion 12 and is in a held state (FIG. 9).

[0025] 6, the fitting protrusion 12a is a protrusion that protrudes from the rear surface 10b of the main body 10, and is provided at the other end 10d in the extension direction of the main body 10. The fitting protrusion 12a is inserted into the fitting hole 20. As shown in Fig. 4, the tip of the fitting protrusion 12a protrudes outward in the extension direction of the main body 10. Therefore, as shown in Fig. 5, when the fitting protrusion 12a is inserted into the fitting hole 20, the tip of the fitting protrusion 12a gets caught on the periphery of the fitting hole 20, making it difficult for the belt member 3 to come off.

[0026] The pressing pieces 12b are two locking claws that protrude from the back surface 10b of the main body 10, and are arranged between the fitting projections 12a and the fixing holes 13 in the extension direction of the main body 10. As shown in Fig. 6, each locking claw of the pressing pieces 12b has an inverted L shape, and is arranged to sandwich the belt member 3 in the width direction (the short side direction of the main body 10) and to press the belt member 3 in the thickness direction of the main body 10. In other words, the pressing pieces 12b have a gap that allows the belt member 3 to be inserted therethrough.

[0027] 9, the belt member 3 is rotated so as to press down on the cable C, and is locked by the locking portion 12 at a desired position. More specifically, the worker holds the free end (the gripping portion 3a, which will be described later) of the belt member 3 and inserts it into the gap between the pressing pieces 12b. Then, the worker fits the fitting protrusion 12a into a desired fitting hole 20, thereby fixing the cable C to the main body 10. When removing the cable C, the worker can easily remove the cable C by removing the belt member 3 from the fitting projection 12a and pulling out the belt member 3 from the pressing piece 12b.

[0028] In this way, the cable C can be pressed against the base member 2 by the rotatable belt member 3. In addition, the belt member 3 is detachably fastened to the base member 2. Therefore, the cable holder 1 can hold the cable C firmly and detachably. In particular, the belt member 3 is pivotally supported by the support portion 11 and is locked at any position by the locking portion 12. Therefore, the belt member 3 can press and fix the cable C against the main body portion 10 of the base member 2. Therefore, the area where the belt member 3 comes into contact with the cable C increases, and the holding force of the belt member 3 on the cable C can be improved.

[0029] 6, the fixing hole 13 is a circular hole formed so as to penetrate the main body portion 10 in the thickness direction of the main body portion 10. The fixing tool 5 is inserted into the fixing hole 13. The fixing hole 13 is provided in the center in the extension direction of the main body part 10. Specifically, the fixing hole 13 is disposed between the support part 11 and the pressing piece 12b in the extension direction of the main body part 10.

[0030] 6, the belt member 3 is a flexible, long resin member. The belt member 3 has a plurality of fitting holes 20 formed therein and aligned in the longitudinal direction of the belt member 3. At the end in the longitudinal direction of the belt member 3, a shaft portion 21 is formed which extends in the width direction of the belt member 3 and is supported by the support portion 11. In other words, one end of the belt member 3 is attached to the support portion 11, and the other end is a free end. At the free end of the belt member 3, a grip portion 3a is formed.

[0031] The grip portion 3a is a portion of the belt member 3 that is gripped by an operator. As shown in Fig. 6, the grip portion 3a is formed with a protrusion 3b that acts as an anti-slip portion. The grip portion 3a is also formed so as to become thinner toward the tip. Since the gripping portion 3a is formed to become thinner toward the tip, when holding the cable C, the worker can easily insert the belt member 3 into the gap between the pressing pieces 12b.

[0032] The fitting holes 20 are rectangular holes that penetrate the belt member 3 in the thickness direction. A plurality of fitting holes 20 are formed so as to be aligned in the length direction of the belt member 3. Note that no fitting holes 20 are formed in the grip portion 3a. By providing a plurality of fitting holes 20, it is possible to lock at any position. In other words, the belt member 3 is configured so that its length is adjustable. The shaft portion 21 is formed at an end portion (the end portion opposite to the free end) in the longitudinal direction of the belt member 3. The shaft portion 21 is inserted into the shaft hole of the support portion 11, whereby the belt member 3 is supported rotatably relative to the base member 2.

[0033] 1, the magnet 4 is a member for magnetically attaching the cable holder 1 to the mounting surface W while holding the cable C. The magnet 4 is preferably made of a material with strong magnetic force, such as a neodymium magnet. As shown in Fig. 3, the magnet 4 is fixed to the surface 10a of the main body 10 by a fixture 5. As shown in Fig. 6, the magnet 4 has a disk shape, and an insertion hole 4a is formed in the center of the magnet 4, through which a screw 5a of the fixture 5, which will be described later, is inserted. Note that the magnet 4 is not limited to a circular shape when viewed from the front, and may be rectangular, polygonal, or the like.

[0034] 9, the insertion hole 4a is a hole that penetrates the magnet 4 in the thickness direction, and has a tapered shape that decreases in diameter toward the main body 10. The magnet 4 is fixed to the base member 2 by fitting the screw 5a into the insertion hole 4a and threading the screw 5a into the nut 5b. In this embodiment, the screws 5a are inserted into the insertion holes 4a to fix the magnets 4 to the base member 2, but the method for fixing the magnets 4 is not limited to this. For example, if the magnets 4 do not have insertion holes 4a, the screws 5a may be fixed to the magnets 4 with an adhesive.

[0035] 4 and 6, the fixing device 5 is a member for fixing the magnet 4 to the base member 2. The fixing device 5 is attached to the magnet 4 and has a screw 5a that is inserted into the fixing hole 13, and a plate-shaped nut 5b that is screwed onto the screw 5a that is inserted into the fixing hole 13. The magnet 4 is fixed to the surface 10a of the main body 10 by threading the plate-shaped nut 5b into the screw 5a. Specifically, the screw 5a inserted into the insertion hole 4a is threaded into the nut 5b via the fixing hole 13, thereby fixing the magnet 4 to the surface 10a of the main body 10.

[0036] As shown in FIG. 6, the screw 5a is, for example, a flat head screw, which is inserted through the insertion hole 4a of the magnet 4 and the fixing hole 13 of the base member 2 and is screwed into the nut 5b. The head (base end) of the screw 5a has a flat surface. The head of the screw 5a has a tapered surface that decreases in diameter toward the tip. The tapered surface of the head of the screw 5a engages with the tapered surface of the insertion hole 4a, thereby fixing the screw 5a inside the magnet 4. The tip of the screw 5a has a male thread. The nut 5b is, for example, a thin plate nut having a square shape in top view. A nut hole is formed at the center of the nut 5b, penetrating the nut in the thickness direction. A female thread is formed on the inner surface of the nut hole to be threadedly engaged with the screw 5a.

[0037] 9, the thickness d1 of the nut 5b is thinner than the thickness d2 of the main body 10. Furthermore, the thickness d1 of the nut 5b is thinner than the length d3 (height of the locking claw) of the pressing piece 12b in the thickness direction of the main body 10. In this way, because the thickness d1 of the nut 5b is thin, the cable holder 1 can be attached to the cable C in a compact manner. Furthermore, the thickness d4 of the magnet 4 is thinner than the thickness (the sum of the thickness d2 of the main body 10 and the length d3 of the pressing piece 12b) of the base member 2. Because the thickness d4 of the magnet 4 is thus thin, the cable holder 1 can be configured compactly. In this way, because the magnets 4 and nuts 5b that make up the cable holder 1 are thin, the thickness of the cable holder 1 can be made even thinner.

[0038] 9, the tip of the screw 5a does not protrude beyond the nut 5b, and the base end of the screw 5a does not protrude beyond the magnet 4. Specifically, the male thread of the screw 5a is short, and when the male thread and the female thread are screwed together, the tip of the male thread is housed inside the female thread. Furthermore, when the tapered surface of the head of the screw 5a engages with the tapered surface of the insertion hole 4a, the flat surface of the head of the screw 5a is housed inside the insertion hole 4a. Note that by forming a tapered surface on the insertion hole 4a, the head of the screw 5a can be accommodated inside the insertion hole 4a. However, the configuration is not limited to one in which a tapered surface is formed on the insertion hole 4a, and a configuration in which a counterbore hole is formed in the magnet 4 may also be used. By forming a tapered surface or a counterbore hole on the magnet 4, the base end of the screw 5a can be accommodated inside the magnet 4.

[0039] In this way, the tip of the screw 5a does not protrude from the nut 5b, and therefore, the cable C can be prevented from being damaged by the tip of the screw 5a. Furthermore, because the base end of the screw 5a does not protrude from the magnet 4, it is possible to further reduce the thickness of the cable holder 1. Furthermore, because the base end of the screw 5a does not protrude from the magnet 4, when the magnet 4 is magnetically attached to the mounting surface W, the magnetically attached surface of the magnet 4 can be in close contact with the mounting surface W.

[0040] With the above configuration, plate-shaped magnet 4 is fixed to base member 2 by plate-shaped nut 5b, so the overall thickness of cable holder 1 can be made thin. Furthermore, since the magnet 4 is fixed to the base member 2 by the fixing device 5, the magnet 4 can be firmly fixed to the base member 2. In particular, since the magnet 4 is engaged with the screw 5a and nut 5b, the magnet 4 and base member 2 can be easily removed. Therefore, even if the resin base member 2 or belt member 3 deteriorates, the magnet 4 can be removed from the base member 2 and easily replaced.

[0041] The cable holder of this embodiment has been described above using the drawings. Note that the above embodiment is merely an example to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit and scope of the present invention, and of course, equivalents thereof are also included in the present invention. [Explanation of symbols]

[0042] 1 Cable holder 2 Base material 3 Belt member 3a Gripping part 3b Convex part 4. Magnets 4a Insertion hole 5 Fixtures 5a screw 5b Nut 10 Main body 10a surface 10b back side 10c One end 10d Other end 11 Support part 12 Locking part 12a Fitting protrusion 12b Presser piece 13 Fixing hole 20 Fitting hole 21 Shaft W Mounting surface C Cable D Electrician's Drum

Claims

1. A cable holder for detachably holding a cable and attaching it to a mounting surface, A base member; a flexible belt member rotatably attached to the base member; a plate-shaped magnet fixed to the base member; a fixture that fixes the magnet to the base member, the base member has a plate-shaped main body portion extending in a predetermined direction, a support portion provided at one end of the main body portion in the extension direction and rotatably supporting the belt member, a locking portion provided at the other end of the main body portion in the extension direction and detachably locking the belt member, and a fixing hole formed to penetrate the main body portion, the belt member is fastened to the main body by the fastening portion, the fixing device includes a screw inserted into the fixing hole and a plate-shaped nut threadedly engaged with the screw inserted into the fixing hole, The cable holder is characterized in that the magnet is fixed to the surface of the main body by threading the plate-shaped nut and the screw.

2. The magnet is a neodymium magnet, The magnet has an insertion hole through which the screw is inserted, 2. The cable holder according to claim 1, wherein the screw inserted into the insertion hole is threadedly engaged with the nut via the fixing hole.

3. The tip of the screw does not protrude outward beyond the nut, 3. The cable holder according to claim 2, wherein the base end of the screw does not protrude beyond the magnet.

4. 4. The cable holder according to claim 1, wherein the nut has a thickness thinner than that of the main body.

5. The belt member is formed with a plurality of fitting holes aligned in the length direction of the belt member, the engaging portion includes a fitting protrusion that protrudes from the rear surface of the main body portion and fits into one of the fitting holes, and a pressing piece that is provided on the rear surface of the main body portion and presses the belt member, 4. The cable holder according to claim 1, wherein the thickness of the nut is thinner than the length of the pressing piece.

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