JP2015073349A - Cable support hardware - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable support hardware which easily supports cables in a tunnel and stably houses the cables.SOLUTION: A cable support hardware is provided with: an attachment part attached to a fixture; a placement part which extends from the attachment part, the placement part on which multiple cables may be placed; a cover disposed on the placement part; and a connection mechanism which connects the placement part with the cover. The connection mechanism may fix the cover at a position where the cover covers the placement part, release the fixation, and move the cover to a position where the cables disposed on the placement part are removed from the placement part.

Description

  The present invention relates to a cable support hardware.

  Various cables are provided in the tunnel for signal lights and communication. For this reason, the anchor bolt is hit on the side surface of the upper part of the tunnel, and the hardware supporting the cable is fixed to the anchor bolt. The hardware that supports such a cable is called a cable guide, a cable rack, a cable support hardware, or the like, but is collectively referred to as a cable support hardware in this specification. By providing such a cable support hardware, it is not necessary to fix the cables one by one to the inner wall of the tunnel, and the cable extension work is facilitated. Such cable support hardware is described, for example, in Patent Documents 1 and 2 below.

JP 2009-254023 A JP 2005-273234 A

  In such a cable support hardware, there is a request to prevent the cable from falling off and loosening. For example, in Patent Document 1, a cable placed on a rack is fixed by a binding band. On the other hand, in Patent Document 2, it is described that a drop prevention mechanism for catching on a cable is provided so that the support metal does not fall off when the anchor bolt of the support metal falls off.

  However, such conventional cable support hardware has a problem that it is difficult to re-cable or increase the cable wiring while easily preventing the cable from falling off. For example, in the rack described in Patent Document 1, since cables are fixed with a binding band, it takes time to replace the cables. For this reason, when an attempt is made to change the position of an existing cable when a new cable is added, a great deal of labor and time are required.

  In addition, the conventional cable support hardware has been desired to be reduced in size, reduced in cost, resource-saving, easy to manufacture, and improved in usability.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms.

(Application Example 1) As an embodiment of the present invention, a cable support hardware for supporting a cable is provided. The cable support hardware includes an attachment portion attached to the fixture, a placement portion extending from the attachment portion and capable of placing a plurality of cables, a cover disposed on the placement portion, and the cover A connecting mechanism that can be fixed at a position covering the mounting portion, can be released, and can be moved to a position where at least the cable disposed in the mounting portion can be removed from the mounting portion. .

  According to this cable support hardware, it is possible to achieve both the ease of newly installing / adding or replacing a cable and the stable accommodation of the cable.

  (Application Example 2) In such a cable support hardware, the connection mechanism is provided in the mounting portion, and is formed on the cover, a first plane extending in parallel with the mounting portion, and the first plane. And a fastening member that fastens / releases both the first plane and the second plane. In this way, the connection mechanism of this application example can be realized with a simple structure.

Application Example 3 In such a cable support hardware, the other end of the cover may be formed in a shape capable of rotating the cover around the connecting member.
(Application Example 4) In the cable support hardware, the fastening member is a bolt and a nut that are attached to fixing holes provided in the first plane and the second plane and can fix both planes. In addition, at least one of the fixing holes may be formed as a long hole having a long diameter in the longitudinal direction of the mounting portion.

  In these cable support hardware, the function as the connection mechanism can be realized with a simple structure.

(Application Example 5) The attachment portion may be attached to an anchor bolt fixed to a tunnel inner wall as the fixture. This cable support hardware is easy to install on the inner wall of the tunnel.

(Application Example 6) The mounting portion may be inclined to an arbitrary angle within a range of 3 to 10 degrees from the horizontal with respect to the cable arranging direction in a state where the mounting portion is attached to the fixture. Since the cable support hardware is provided with an inclination, it is difficult for dew condensation water or water leakage from the tunnel ceiling to accumulate.

Application Example 7 In such a cable support hardware, the attachment portion is attached to a fixture using a bolt, and the bolt has a washer having an arm portion extending in at least one direction. You can tighten it. With this cable support hardware, it is possible to easily inspect the looseness of the bolt by fastening together the washer having the arm portion.

  The present invention can be realized in various forms other than the support hardware. For example, it can be realized in the form of a method for manufacturing a cable support hardware, a method for supporting a cable, a method for replacing or adding a cable, and the like.

It is explanatory drawing which shows the attachment state of the cable support metal fitting of embodiment. It is a perspective view of the cable support metal fitting of 1st Embodiment. It is a front view of the cable support metal fitting of 1st Embodiment. It is a perspective view explaining use of the cable support metal fitting of a 1st embodiment. It is explanatory drawing explaining use of the cable support metal fitting of 2nd Embodiment. It is a perspective view which shows the principal part of the cable support metal fitting of 3rd Embodiment. It is a perspective view which shows the principal part of the cable support metal fitting of 4th Embodiment. It is explanatory drawing explaining the use condition of the modification of 4th Embodiment.

A. First embodiment:
Drawing 1 is an explanatory view showing the attachment state of cable support metal fitting 10 of a 1st embodiment. FIG. 2 is a perspective view showing the form of the cable support hardware 10. Hereinafter, it demonstrates using both figures. As shown in the drawing, the cable support hardware 10 of the first embodiment is attached to an anchor bolt 12 as a fixture provided on the inner wall of the tunnel by a hexagon bolt 14.

  The cable supporting metal 10 protrudes substantially perpendicularly from an attachment portion 25 having an attachment hole through which the bolt 14 for attaching the anchor bolt 12 is inserted, a continuous portion 26 extending downward from the attachment portion 25, and the continuous portion 26. A mounting unit 20 and a cover 30 attached to the mounting unit 20 are provided. In FIG. 2, although shown together with the anchor bolt 12, the anchor bolt 12 is actually embedded in the concrete of the tunnel inner wall. By screwing the bolt 14 into the female screw portion provided on the anchor bolt 12, the attachment portion 25 of the cable support hardware 10 is firmly attached to the inner wall of the tunnel.

  The mounting portion 25, the continuous portion 26, and the placement portion 20 are made by bending a single sheet metal. Of course, it may be produced as a separate member as appropriate, and connected later by riveting or welding. The tip of the mounting part 20 is bent and raised by a predetermined dimension to form a first plane 21 parallel to the mounting part 20. An opening is provided in the approximate center of the first plane, and a screw is tapped. On the other hand, a mounting hole is provided at a position corresponding to a plane (second plane) 32 corresponding to the first plane at one end of the cover 30. Therefore, if the second plane 32 of the cover 30 is overlapped on the first plane 21 of the mounting portion 20 and screwed through the bolts 24 from the cover 30 side, the cover 30 can be easily assembled to the mounting portion 20. .

  A corner of the tip of the cover 30 opposite to the second flat surface 32 is chamfered. The total length of the cover 30 is slightly shorter than substantially the same as the length in the longitudinal direction of the placement portion 20 (including the first plane 21). When the cover 30 is attached to the placement unit 20 with the bolts 24, the cover 30 can rotate around the bolts 24 in a state where the bolts 24 are not completely fixed. In particular, since both corners of the cover 30 are chamfered, the tip of the cover 30 does not hit the continuous portion 26 and rotation is not hindered.

  Moreover, as shown in the front view of FIG. 3, the bottom surface of the mounting portion 20 is slightly inclined in the width direction. In the present embodiment, the inclination angle α is about 6 degrees, but can be any angle as long as it is between about 3 degrees and 10 degrees. This inclination is provided so that water leaking from the ceiling, condensed water, etc. are difficult to collect.

  When a cable is attached to the cable support metal fitting 10 of the first embodiment, first, a pilot hole is made in the inner wall of the tunnel, and an anchor bolt 12 is driven therein and embedded. Next, the cable support 10 is fixed at the mounting portion 25 by the bolts 14. At this time, a deformed washer 41 for looseness confirmation is fastened to the bolt 14 together. As shown in FIG. 3, the modified washer 41 has a horizontally long shape as compared with a normal washer, and is provided even if the mounting hole is eccentric. Accordingly, when the bolt 14 is attached, if the deformed washer 41 is fastened so as to jump out in the lateral direction, when the bolt 14 is loosened, the deformed washer 41 rotates and the looseness of the bolt 14 can be easily detected.

  In this state, the bolt 24 is slightly loosened and the cover 30 is rotated. Then, as shown in FIG. 4, since the upper part of the mounting part 20 will be in the open state, the cable CC is accommodated here. The accommodated cable CC may be fixed by a binding band, a wire, a wire, or the like using the opening 28 provided at the center of the placement unit 20. After the cable CC is stored in the placement unit 20, the cover 30 is rotated to a position overlapping the placement unit 20, the bolts 24 are tightened, and the cover 30 is firmly fixed to the placement unit 20. It should be noted that the deformed washer 41 may be fastened to the bolt 24 as well.

  According to the cable support bracket 10 of the first embodiment, the cable CC can be easily supported. At this time, since the mounting portion 20 is covered by the cover 30, even if a force is applied to the cable CC from the outside, the cable CC does not come off or fall off from the cable support hardware 10. When storing, removing a cable, or adding a cable, the cable CC can be easily accessed simply by loosening the bolt 14. In particular, since the bolt 14 is loosened and the cover 30 only needs to be rotated, the removed cover or bolt does not fall off or fall.

  In the first embodiment, the tip of the continuous portion 26 of the cover 30 is chamfered at both corners, but only one of the corners may be chamfered to limit the rotation direction to one direction. Instead of chamfering, a semicircular shape or only one of them may be formed in an arc shape. Moreover, you may form the cover 30 whole or at least the front-end | tip with a flexible member, for example, rubber | gum. Of course, the tip may be made of metal or ceramics having heat resistance, and only the tip may be movable or stretched. For example, a structure that allows rotation of the cover by using a bellows, a spring, a book number, or the like at the tip may be used.

B. Second embodiment:
Next, a second embodiment of the present invention will be described. FIG. 5 is an explanatory view showing the structure and handling state of the cable support hardware 110 of the second embodiment. The cable support hardware of the second embodiment has substantially the same form as the cable support hardware 110 of the first embodiment except for the shape of the cover 130. In FIG. 5, the same members as those of the cable support hardware 110 of the first embodiment are displayed with the same last two digits. FIG. 5 is a view corresponding to the view taken along arrow 5-5 in FIG. 3, although the shape of the cover 130 is different from that in FIG.

  As shown in FIG. 5, the cable support hardware 110 of the second embodiment is not chamfered at the tip of the cover 130 located on the side of the connecting portion 126, and the cover 130 has a substantially rectangular shape. In the cover 130, the attachment hole 135 fixed by the bolt 124 has a long hole shape. Therefore, as shown in the uppermost column (A) of FIG. 5, the bolt 124 is first loosened from the state in which the bolt 124 is tightened and the cover 130 covers and fixes the placement unit 120. Then, the cover 130 can move in the long axis direction of the long hole-shaped attachment hole 135. In FIG. 5, the cover 130 slides in the arrow H direction.

  In this state, the tip of the cover 130 on the side of the connecting portion 126 is separated from the connecting portion 126, so that the cover 130 can rotate. Therefore, as shown in the middle column (B) of FIG. 5, when the cover 130 is rotated in the direction of the arrow R, the placement unit 120 appears as shown in the lowermost stage (C) of FIG. In this state, as in the first embodiment, the cable can be newly stored in the mounting portion 120 or the existing cable can be accessed.

  According to the cable support hardware 110 of the second embodiment, the same effect as that of the first embodiment can be obtained, and the shape of the cover 130 can be made simpler. Further, by pressing the front end of the cover 130 tightly against the connecting portion 126, a configuration without a gap can be achieved. Furthermore, even if the bolt 124 is slightly loosened. Since the cover 130 cannot rotate unless it moves in the direction of arrow H, the cover 130 is prevented from opening due to the loosening of the bolts 124.

C. Third embodiment:
A cable support hardware 210 according to the third embodiment will be described with reference to FIG. As shown in FIG. 6, the cable support hardware 210 has the same basic configuration as that of the second embodiment. The cable support hardware 210 of the third embodiment accommodates the cable in a space formed by the cover 230 and the placement portion 220. A first flat surface 221 is formed at the tip on the mounting portion 220 side, and the second flat surface 232 of the cover 230 is overlapped on the first flat surface 221, and both are fastened by a bolt 224. The second flat surface 232 of the cover 230 is the same as the second embodiment up to the point where the long hole 235 is provided.

  In the cable support metal fitting 210 of the third embodiment, the front end portion 237 on the side of the connecting portion 226 of the cover 130 is formed in a trapezoidal shape. In addition, an opening 227 is formed at a position corresponding to the distal end 237 of the continuous portion 226. The size of the opening 227 is set so that the tip 237 can be received. Accordingly, the bolt 224 is loosened, the cover is slid and rotated, the cable 230 is accommodated in a state where the cover 230 is opened, the cover 230 is returned to the original position, and the cover 230 is moved toward the connecting portion 226. When sliding to, the front end 237 of the cover 230 is accommodated in the opening 227. If the bolt 224 is tightened in this state, the front end portion 237 of the cover 230 is engaged with the connecting portion 226, and even a thin cable is not detached from the placement portion 220. Further, for example, even if the bolt 224 is loosened, the cover 230 is more reliably prevented from rotating and opening. The rear end of the second plane 232 is bent over a predetermined length downward. Due to this bending, the possibility of injury at the rear end of the cover 230 or the mounting portion 220 that has been cut off is reduced. The same bending may be employed in the first and second embodiments.

D. Fourth embodiment:
In the said 1st-3rd embodiment, the mounting part and the cover were fixed by the 1st, 2nd plane, and the cover rotated in this surface. On the other hand, the cable support metal fitting 310 of the fourth embodiment employs a structure in which the cover 330 rotates about a rotation axis perpendicular to the rotation axes of the first to third embodiments. In the cable support hardware 210 of the third embodiment, as shown in FIG. 7, a first flat surface 321 is formed at the tip of the mounting portion 220. Both sides of the first plane 321 are bent in the vertical direction to form side wall portions 351 and 352. Attachment holes 361 and 362 are formed at substantially the center of the side wall portions 351 and 352. The mounting hole 361 is tapped with a female screw. The mounting hole 362 is a simple opening.

  On the other hand, both sides of the second flat surface 332 at the tip of the cover 330 are also bent substantially vertically to form side wall portions 341 and 345. The dimension between the side wall parts 341 to 345 is slightly larger than the outer dimension between the side wall parts 351 to 352 on the mounting part 220 side. Further, an attachment hole 371 is provided in the approximate center of the side wall portion 341. On the other side wall portion 345, a convex portion 350 is formed toward the inside. As shown in the partially enlarged view of FIG. 7, the convex portion 350 is formed by stamping the side wall portion 345 from the outside with a center punch or the like. Of course, you may form by press work etc.

  When assembling the cable support metal fitting 310 of the fourth embodiment, the front end of the cover 330 is put on the front end of the placement portion 320 and pressed down strongly. Then, the side wall parts 341 and 345 of the cover 330 are opened by the elasticity of the metal, the tip of the cover 330 is fitted into the tip of the mounting part 320, and the convex part 350 is fitted into the mounting hole 362. In this state, the bolt 324 is passed through the mounting hole 371 and screwed into the mounting hole 361. When the bolt 324 is tightened, the cover 330 is firmly fixed to the placement unit 320.

  At this time, the first plane 321 of the placement unit 320 and the second plane 332 of the cover 330 are separated by a predetermined distance. Therefore, when the bolt 324 is loosened, the cover 330 can rotate in the direction of arrow V in FIG. In the example shown in FIG. 7, the cover 330 can be rotated by separating the first plane 321 and the second plane 332, but the first plane 321 of the mounting portion 320 is shortened, and the side wall portion If the upper outer sides of 351 and 352 are rounded, it is not difficult for the cover 330 to be rotatable in the direction of arrow V without separating the mounting portion 320 and the cover 330.

  According to the cable support metal fitting 310 of the fourth embodiment, the rotation axis of the cover 330 can be set in the horizontal direction, not in the vertical direction. For this reason, the cover 330 is rotated upward (in the direction of the arrow V), and the same effect as in the first to third embodiments can be obtained. Further, the cover 330 covers the mounting portion 320 by its own weight. And the safety is further enhanced. This is because even if the bolt 324 is loosened, the cover 330 maintains the state of being assembled to the mounting portion 320 due to its own weight.

  In the fourth embodiment, although the two side wall portions 341, 345 (351, 352) are provided, only one fixing bolt 324 is required, and it is not necessary to handle two bolts when fixing or releasing. Of course, an attachment hole may be provided instead of the convex portion 350, and the side wall portion 352 side may be fixed with bolts. Alternatively, the bolt 324 may be lengthened and the two side wall portions may be penetrated and fixed with one bolt. If the two side wall portions are fixed with bolts in this way, the cover 330 and the mounting portion are formed by making the mounting holes provided in the side wall portions 341 and 345 on the cover 330 side into long holes having a long axis in the vertical direction. The separation distance from 320 can be changed. As a result, the large-diameter cable support metal and the small-diameter cable metal support can be used together. If the attachment hole is a long hole, the cover 330 can be rotated and the first plane 314 and the second plane 352 can be fixed in contact with each other.

  Furthermore, in the fourth embodiment, the tip of the cover 330 can have the same structure as that of the third embodiment. In this case, the front end of the cover 330 abuts on the continuous portion, but the metal cable support metal 310 is slightly bent so that the front end of the cover 330 is received in the opening provided in the continuous portion. Is possible. In this case, the placement unit 320 and the cover 330 need not be fixed with the bolts 324.

  The modification of the cable support metal fitting of 4th Embodiment was shown in FIG. The cable support metal 311 includes a rotation mechanism similar to that of the fourth embodiment, but the attachment hole 371 is a long hole. In addition, a metal flexible member 400 is provided on the surface (lower surface) of the cover 330 on the mounting portion 320 side. The flexible member 400 can be configured by a bundle of metal thin films such as stainless steel or a bundle of metal springs having a small radius. In the cable supporting metal 311 having such a configuration, when the cover 330 is opened and the cable CC is accommodated in the placement portion 320 and then the cover 330 is closed, the cable CC can be pressed while the flexible member 400 is deformed. . In this case, if the distal end portion 337 of the cover 330 has the same shape as the distal end portion of the third embodiment and is fitted into an opening (not shown) of the connecting portion 326, the flexible member 400 causes the cable CC to be inserted. Can be more stably fixed to the mounting portion 320. Of course, the front end of the cover 330 may be fixed to the mounting portion 320 with a screw or the like.

  According to this modification, since the flexible member 400 is provided on the lower surface of the cover 330, even if the diameter of the cable is large or small, it can be pressed within the deformation range of the flexible member 400. . For this reason, even if the cable accommodated in the cable support metal 311 is not fixed with a binding band or the like, the cable CC is not displaced, moved, or detached in the accommodated state. The flexible member 400 is made of metal in consideration of heat resistance, but plastic may be used if heat resistance is not taken into consideration.

  The present invention is not limited to the above-described embodiments, examples, and modifications, and can be realized with various configurations without departing from the spirit thereof. For example, the technical features in the embodiments, examples, and modifications corresponding to the technical features in each embodiment described in the summary section of the invention are to solve some or all of the above-described problems, or In order to achieve part or all of the above effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

  For example, the cover is structured to be fixed to the mounting portion at the tip side of the mounting portion, but the cover may be fixed to the connecting portion side. Or it is good also as a structure fixed at the both ends of the length direction of a cover. Alternatively, a raised portion may be formed in the vicinity of the center of the mounting portion in the length direction, and the cover may be fixed to the raised portion with a bolt or the like. In this case, the upper surface of the raised portion corresponds to the first plane, and the vicinity of the corresponding central portion of the cover corresponds to the second plane. If the bolt is loosened, the cover can rotate around the raised portion and the cable can be accommodated in the accommodating portion. Further, the cover is not limited to one sheet and may be divided into two or more sheets. A structure that can be fixed and moved may be provided for each cover. Alternatively, a structure may be provided in which covers are connected to each other, and one cover is accommodated in another cover or folded.

  In the above embodiment, the cable support hardware 10 and the like are attached in such a manner that they are suspended from the anchor bolts 12 provided on the inner wall of the tunnel, but conversely, it is supported by the anchor bolts below the cable support hardware. It may be attached to. In such a case, if a plurality of anchor bolts are prepared, they can be stably attached. Of course, a plurality of anchor bolts may be prepared even in a hanging type. Furthermore, a plurality of cable support metal fittings of the present invention may be arranged in parallel and connected by a guide or the like to be used as a cable rack.

10, 110, 210, 310, 311 ... cable support hardware 12 ... anchor bolts 14, 24, 124, 224, 324 ... bolts 20, 120, 220, 320 ... placement parts 21, 221, 321 ... first plane 25, 225, 325 ... mounting portion 26, 126, 226, 326 ... continuous connection portion 30, 130, 230, 330 ... cover 32, 232, 332 ... second plane 37, 337 ... tip portion

Claims (7)

A cable support for supporting the cable,
A mounting portion attached to the fixture;
A mounting portion extending from the mounting portion and capable of mounting a plurality of cables;
A cover disposed on the mounting portion;
The cover is fixed at a position that covers the mounting portion, and the fixing mechanism can be released, and at least a connecting mechanism that can move to a position where the cable disposed on the mounting portion can be removed from the mounting portion. Cable support hardware. The cable support hardware according to claim 1,
The coupling mechanism is
A first plane provided in the mounting section and extending in parallel with the mounting section;
A second plane formed on the cover and superimposed on the first plane;
A cable support bracket comprising a fastening member for fastening and releasing both of the first plane and the second plane.   The cable support metal fitting according to claim 2, wherein the other end of the cover is formed in a shape capable of rotating the cover around the connecting member. The cable support hardware according to claim 2,
The fastening member is a bolt and a nut that are attached to fixing holes provided in the first plane and the second plane and can fix both the planes, and at least one of the fixing holes is formed of the mounting portion. Cable support hardware formed as a long hole with the major axis in the longitudinal direction.   The cable mounting bracket according to any one of claims 1 to 4, wherein the attachment portion is attached to an anchor bolt fixed to a tunnel inner wall as the fixture.   The mounting portion according to any one of claims 1 to 5, wherein the mounting portion is inclined at an arbitrary angle within a range of 3 to 10 degrees from the horizontal with respect to a cable disposition direction in a state of being attached to the fixture. Cable support hardware according to item. The cable support hardware according to any one of claims 1 to 6,
The attachment portion is attached to a fixture using a bolt, and the bolt is a cable support metal member formed by fastening a washer having an arm portion extending in at least one direction.

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