JP2023176151A - Cover retainer - Google Patents

Abstract

To provide a cover retainer that simplifies the work for attaching a cover to a cable rack of standing construction and allows for easy plating or coating.SOLUTION: A first support body 10 is provided to lock from a cover mounting side of a main beam P1 to a side face. A second support body 20 is provided to be detachably connected to the first support body 10. The second support body 20 is fixed from a side face of the main beam P1 to an opposite side of the cover mounting side. A mounting bolt 1 is provided for screwing a cover Q to the first support body 10. The mounting bolt 1 is projected from the first support body 10 to screw into the cover Q. The mounting bolt 1 is held in a state of being loosely inserted into a bolt insertion hole 11 of the first support 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cover stopper for attaching a cover to a cable rack for upright construction.

When attaching a cover to a cable rack that is constructed upright, a cover attachment fitting described in Patent Document 1, a cover attachment device described in Patent Document 2, and the like have been proposed.

The cover mounting bracket of Patent Document 1 includes a locking part 1 that fits onto the child spar P2 in the cable rack P and is slidably locked to the child spar P2, and a locking part 1 that is arranged along the side surface of the main spar P1. The cover Q is configured to include a positioning part 2 for fixing the cover Q and a fixing part 3 for fixing the cover Q, and a connection bolt 5 provided upright on the fixing part 3 is inserted into a screw hole Q1 of the cover Q to screw the cover Q.

On the other hand, the attachment device of Patent Document 2 includes a locking portion 8 that locks in the child beam 5 of the cable rack 1 and a mounting portion 9 that attaches the cover 2. The cover 2 is supported by a connecting portion 10 that is provided upright between the cover 2 and the cover 2. Then, the cover 2 is fixed by screwing the screw member 18b into the female threaded portion of the screw through hole 17b formed in the attachment portion 9.

Patent No. 5784687 Patent No. 4048983

Since these conventional cover attachment fittings are all fixed to the child beam of the cable rack, the positions of the screw holes in the cover may be pre-drilled in accordance with the positions of the child beams. However, when attaching a cover to a cable rack that is built upright, the main work is done near the floor penetration. Therefore, it has become necessary to separately form a cover with screw holes drilled in accordance with the position of the child spar from the position of the floor penetration part to the position of the child spar (see FIG. 1 of Patent Document 1).

The cover mounting bracket described in Patent Document 2 also describes a type of cover mounting bracket that is not fixed to the child girder, but the work related to the rising cover is mainly performed near the floor penetration part, and it is used near the floor penetration part. Conventional mounting hardware requires a separate metal fitting to be attached to the cover. As a result, this metal fitting interferes with the earthquake-resistant pedestal, making it impossible to mount it on a cable rack.

Further, the cover mounting fitting described in Patent Document 1 has a structure in which the connecting bolt 5 is fixed to the fixing portion 3 by caulking, which makes it difficult to plate the cover mounting fitting. That is, if plating is applied after fixing the connecting bolt 5, the connecting bolt 5 will become clogged, and if an attempt is made to caulk the connecting bolt 5 after plating, the pilot hole for caulking will be filled with plating, causing the inconvenience. Therefore, when plating or painting the cover mounting metal fittings, it is necessary to protect the connecting bolts 5 and pilot holes by masking, etc.

Furthermore, in a structure in which the connecting bolts are fixed by caulking in advance, even if the position of the fixed connecting bolt and the position of the screw hole drilled in the cover are slightly misaligned, it may be difficult to screw the cover. .

On the other hand, also in the cover mounting device described in Patent Document 2, the cover installed near the floor penetration part needs to be formed from the position of the floor penetration part to the position of the child beam. Furthermore, when plating or painting this cover attachment device, it is necessary to protect the female threaded portion of the screw through hole 17b formed in the attachment portion 9 by masking or the like. Furthermore, the position of the screw through hole 17b of the cover attachment device needs to be precisely aligned with the position of the screw member 18b that is screwed from the cover side.

In this way, all conventional cover mounting brackets have a structure in which they are fixed to the sub-girder, which poses a work problem when attaching the cover to a cable rack that is built up near the floor penetration part. . Additionally, there is the inconvenience that the cable cannot be attached after it has been laid. Furthermore, when plating or painting the cover mounting fittings, etc., a lot of work is required, such as protecting the threaded portions of the connecting bolts, the female threaded portions of the screw through holes, etc. by masking or the like.

Therefore, in order to solve the above-mentioned problems, the present invention provides a cover stopper that simplifies the work of attaching a cover to a cable rack that is installed upright, and also allows for easy plating or painting of the stopper. This is the purpose.

In order to achieve the above-mentioned object, the first means in the present invention is a cover stopper for attaching the cover Q to the cable rack P of standing construction.
A cover stopper that allows the cover Q to be attached vertically along the main spar P1 is provided on the outside of the main spar P1, and locking pieces 12A and 23A that lock from the outside of the main spar P1 inward are attached to the cover stops. Provided at both ends of
A bolt insertion hole 11 for fixing the cover Q with a mounting bolt 1 is provided at one end or both ends of the cover stopper.

The cover stopper of the second means is constituted by a first support 10 and a second support 20, the first support 10 is locked from the cover attachment side to the side of the main beam P1, and The second support 20 is removably connected to the first support 10 and is locked from the side surface of the main girder P1 to the side opposite to the cover attachment side, and protrudes from the first support 10 and is inserted into the screw hole Q1 of the cover Q. The cover Q is provided with a bolt insertion hole 11 through which a mounting bolt 1 is inserted to screw the cover Q to the first support body 10.

The third means also includes the bolt insertion hole 11 in the second support body 20 for fixing the cover Q with the mounting bolt 1.

The mounting bolt 1 of the fourth means is held in the bolt insertion hole 11 by a locking piece 2 detachably attached to the threaded portion of the mounting bolt 1.

According to the present invention, the work of attaching a cover to a cable rack of upright construction becomes easy. Further, the cover near the floor penetrating portion can be arbitrarily fixed without being limited to the position of the sub-girder or the earthquake-resistant pedestal. Furthermore, even when plating or painting the fastener, there is no need to mask the connecting bolt, making the plating or painting easier.

FIG. 2 is an exploded perspective view showing the state of use of the present invention. FIG. 2 is a perspective view showing the state of use of the present invention. FIG. 1 is an exploded perspective view showing an embodiment of the present invention. FIG. 1 is a perspective view of essential parts showing a usage state of an embodiment of the present invention. FIG. 2 is a plan view of essential parts showing the usage state of an embodiment of the present invention. FIG. 3 is an exploded perspective view showing another embodiment of the present invention. FIG. 7 is a plan view of main parts showing a usage state of another embodiment of the present invention.

The fastener of the present invention is a fastener for fixing a cover to a cable rack, and is particularly suitable for attaching a cover to a cable rack that is installed upright. That is, it is a cover stopper that allows the cover Q to be attached vertically along the main beam P1 of the cable rack P.

The main structure of the fastener of the present invention includes a first support 10, a second support 20, and a mounting bolt 1 that protrudes from the first support 10 and screws the cover Q (see FIG. 3). ). This cover stopper is provided so as to be attached to the outside of the main girder P1.

The first support body 10 is a member that locks the main beam P1 from the cover attachment side to the side surface (see FIG. 4). The mounting bolt 1 protruding from the first support 10 is loosely inserted into a bolt insertion hole 11 drilled in the first support 10 (see FIG. 3), and is protruded in the direction of the cover Q. (See Figure 4). Then, the mounting bolt 1 is inserted into the screw hole Q1 of the cover Q, and the cover Q is screwed (see FIG. 1).

The illustrated first support body 10 is a bent metal plate and has an engaging piece 12, an abutting piece 13, and a connecting piece 14 (see FIG. 3). The engagement piece 12 is a part that comes into contact with the cover attachment side of the main beam P1. A mounting bolt 1 for screwing the cover Q is inserted into a bolt insertion hole 11 formed in this engagement piece 12. Further, a locking piece 12A is bent from the engaging piece 12 toward the inside of the main beam P1 (see FIG. 5). Although the illustrated locking pieces 12A are formed in two upper and lower positions, the number of locking pieces 12A may be one or three or more.

The contact piece 13 is a part that is bent from the engagement piece 12 and comes into contact with the outer surface of the master beam P1 (see FIG. 4). Furthermore, a connecting piece 14 is provided which is bent from the abutting piece 13 and is formed to stand up from the outer surface of the main beam P1. The connecting piece 14 is configured to be connected to a second support body 20, which will be described later, and includes a bent piece 14A in which the end of the connecting piece 14 is further bent toward the second support body 20 side.

The mounting bolt 1 is held in the bolt insertion hole 11 by attaching the locking piece 2 while being loosely inserted into the bolt insertion hole 11 (see FIG. 4). The illustrated locking piece 2 has a disk shape made of a resin material such as PET, and has a hole in the center thereof through which the mounting bolt 1 is inserted (see FIG. 3). Further, the means for holding the mounting bolt 1 is not limited to the locking piece 2, but may be held by other means for holding it to the engaging piece 12 of the first support body 10, such as crimping means such as a clip or clamping means. It is also possible to use a female screw instead of the bolt insertion hole 11 (not shown).

Further, the mounting bolt 1 is a square-root bolt, and the bolt insertion hole 11 of the first support body 10 is formed to be one size larger than the square root of the mounting bolt 1 (see FIG. 3). When the locking piece 2 is attached to the mounting bolt 1 loosely inserted into the bolt insertion hole 11, the mounting bolt 1 is held in the state of being loosely inserted into the bolt insertion hole 11. Incidentally, when plating or painting the first support 10 or the second support 20, it can be done with the mounting bolts 1 removed. Moreover, since there is no fear that the bolt insertion hole 11 will be filled with plating or paint, masking or the like is not necessary.

Then, the mounting bolt 1 is inserted into the screw hole Q1 of the cover Q, and the washer 4 and the cap nut 5 are screwed onto the mounting bolt 1 protruding from the surface of the cover Q to fix the cover Q (see FIG. 5). At this time, the mounting bolt 1 is held in a loosely inserted state in the bolt insertion hole 11, and since the bolt insertion hole 11 is an elongated hole, the position can be finely adjusted while being held.

The second support body 20 is a member that is detachably connected to the first support body 10, and is fixed from the side surface of the main beam P1 to the side opposite to the cover attachment side (see FIG. 4). The illustrated second support body 20 has a connecting piece 21, an abutting piece 22, and an engaging piece 23 (see FIG. 3).

The connecting piece 21 is a part that is detachably connected to the connecting piece 14 of the first support body 10 (see FIG. 4). In the illustration, the connecting bolt 3 is inserted into a connecting hole 15 drilled in the connecting piece 14 and a connecting hole 25 drilled in the connecting piece 21, and screwed with a seated nut 6 (see FIG. 3).

A contact piece 22 is formed which is bent from this connecting piece 21 and comes into contact with the outer surface of the main beam P1 (see FIG. 5). Further, an engaging piece 23 is formed which is bent from the abutting piece 22 and engages with the opposite side of the cover mounting surface of the main girder P1. Further, a locking piece 23A is bent from the engaging piece 23 toward the inside of the main spar P1 to prevent the engaging piece 23 from shifting. Furthermore, by providing this locking piece 23A and the locking piece 12A of the first support body 10 at both ends of the cover stopper, the cover stopper can be mounted. Moreover, by changing the shape of the engaging piece 23 and the locking piece 23A, it becomes possible to attach it to the child beam P2.

The fasteners shown in FIGS. 6 and 7 are configured so that the cover Q is also screwed to the side opposite to the cover attachment side of the cable rack P, and the cover Q is fixed to both sides of the cable rack P. are doing. That is, the engagement piece 23 of the second support body 20 is formed to extend like the engagement piece 12 of the first support body 10, and the back bolt insertion hole 24 is opened (see FIG. 6). The cover Q on the back side (child beam P2 side) is screwed to the mounting bolt 1 inserted into the back bolt insertion hole 24 (see FIG. 7).

It should be noted that each structure of the present invention is not limited to the illustrated example, and may be formed integrally with resin, elastic metal, or foldable type, for example. Further, the first support body 10 and the second support body 20 may have the same shape, and the shape of the first support body 10 and the second support body 20, the mounting bolt 1, the connection bolt 3, etc. may be changed according to the present invention. Design changes are free as long as the gist is not changed.

P Cable rack P1 Main girder P2 Child girder Q Cover Q1 Screw hole 1 Mounting bolt 2 Locking piece 3 Connection bolt 4 Washer 5 Cap nut 6 Nut with seat 10 First support 11 Bolt insertion hole 12 Engagement piece 12A Locking piece 13 Contact piece 14 Connection piece 14A Bend piece 15 Connection hole 20 Second support 21 Connection piece 22 Contact piece 23 Engagement piece 23A Locking piece 24 Back bolt insertion hole 25 Connection hole

Claims (4)

In the cover stopper that attaches the cover to the cable rack of stand-up construction,
A cover stopper that allows the cover to be attached vertically along the main girder is provided on the outside of the main girder, and locking pieces that lock from the outside of the main girder inward are provided at both ends of the cover stopper,
A cover stopper that has a bolt insertion hole on one or both ends of the cover stopper for fixing the cover with a mounting bolt. The cover stopper is constituted by a first support and a second support,
The first support is locked from the cover installation side to the side of the main girder,
The second support body is removably connected to the first support body and is locked from the side surface of the main girder to the side opposite to the cover attachment side,
2. The cover fastener according to claim 1, further comprising a bolt insertion hole that protrudes from the first support and is inserted into a screw hole of the cover to be fixed with a mounting bolt that screws the cover to the first support. 3. The cover fastener according to claim 2, wherein the second support also includes a bolt insertion hole for fixing the cover with a mounting bolt. 2. The cover stopper according to claim 1, wherein the mounting bolt is held in the bolt insertion hole by a locking piece that is detachably attached to a threaded portion of the mounting bolt.