JP2001292517A - Connecting member and method for cable rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting member and method for cable rack, capable of proper mounting and fixing on a cable rack. SOLUTION: The connecting member 1 for a cable rack includes a pair of opposing pieces 2a, 2b, disposed so as to overlap the folding sections Ba, Bb of a parent beam B of the cable rack, and a jointing piece 4, having a mounting hole 5 for the parent beam B and connecting the pair of opposing pieces 2a, 2b. A locking piece 3 for conducting locking at the front end of the upper folding section Ba of the parent beam B is formed at one opposing piece 2a. The other opposing piece 2b is formed, so as to produce a clearance to the lower folding section Bb of the parent beam B, under a conditions such that one opposing piece 2a is brought into contact with the upper end folding section Ba of the parent beam B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable rack connecting member and a cable rack connecting method.

[0002]

2. Description of the Related Art As a connecting member for a cable rack of this kind, there is one disclosed in, for example, Japanese Patent No. 2,833,417.

[0003] In this device, a pair of opposing pieces arranged so as to overlap both end bent portions of a main girder of a cable rack, and a pair of opposing pieces having a mounting hole to the main girder of the cable rack are connected. A connection piece. The one opposing piece is provided with a locking piece that locks to the end of the one-end bent portion of the parent girder. The other opposing piece is formed so as to elastically engage with the other end bent portion of the parent girder.

According to this method, there is no need to support by hand at the time of fixing work by screwing, so that there is an advantage that workability of the fixing work is improved.

[0005]

However, the above-described one has the following problems. That is, in the mounting state before the fixing work, the other opposing piece is elastically locked to the other bent portion of the main girder, so that it is difficult for the main girder to slide in the longitudinal direction. Therefore, it is difficult to adjust the position of the mounting hole of the master girder in order to properly adjust the position of the mounting hole, in particular, fine adjustment.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cable rack connecting member and a cable rack connecting method which can be mounted and fixed to a cable rack in a satisfactory manner. To provide.

[0007]

A connecting member for a cable rack according to the present invention includes a pair of opposing pieces disposed so as to overlap both end bent portions of a parent girder of the cable rack, and a cable rack attached to the parent girder. A connecting piece having a hole and connecting a pair of opposing pieces, a connecting piece for connecting the pair of opposing pieces; Along with the provision, the other opposing piece is provided such that a gap is formed between the one opposing piece and the lower bent part of the parent girder in a state where the one opposing piece is in contact with the upper bent part of the parent girder. It has a configuration.

Further, the parent girder of the cable rack has a depressed surface, and the connecting piece has a protruding surface arranged so as to overlap the depressed surface, and the width of the protruding surface is reduced by the depressed surface. Is formed to be narrower than the width of.

The cable rack connecting method according to the present invention is a cable rack connecting method for connecting cable racks using the cable rack connecting member having any one of the above-described structures. One end of the connection member in the longitudinal direction is connected to the end of the cable rack, and then the other end of the cable rack is connected to the end of the connection member at the other end in the longitudinal direction of the connection member by guiding the locking piece. It is a method of connecting from the direction and connecting with the connecting member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

The connecting member 1 of the cable rack A (hereinafter referred to as a connecting member 1)
The connection member is simply suspended by a suspension bolt or the like and connects the cable racks A adjacent to each other in the longitudinal direction. The cable rack A is formed by forming a metal plate, and a pair of opposing pieces 2a, 2b is formed.
And a connecting piece 4.

The pair of opposing pieces 2a, 2b are disposed so as to overlap the bent ends Ba, Bb of the parent girder B of the cable rack A. On one of the opposing pieces 2a, a locking piece 3 that locks to the tip of the upper end bent portion Ba of the parent girder B is bent and connected. This locking piece 3
The so-called, not only merely locking at the top end of the upper bent portion Ba of the main girder B, but in a state of surrounding the upper bent portion Ba of the main girder, and fulfilling the function of inviting at the time of insertion,
It also has a function as a guiding piece. The bending direction of the locking piece 3 may be a right angle, an inner side or an outer side, and is not particularly limited.However, the bending angle of the locking piece 3 is set in consideration of the function as the guiding piece. In addition, the workability at the time of connection can be more reliably improved. Further, the other opposing piece 2b is provided such that a gap is formed between the opposing piece 2a and the lower bent part Bb of the parent girder B in a state where the one opposing piece 2a is in contact with the upper bent part Ba of the parent girder B. Can be That is, when the connecting member 1 is not fixed, there is room for displacement in the width direction of the parent girder B.

The opposing pieces 2a and 2b also function as reinforcing portions for improving the bending strength of the connecting piece 4 described later, but the provision of the locking piece 3 further improves the strength. Therefore, conventionally, when fixing the connection member 1 to the cable rack A with a screw member, of the adjacent cable racks A, A, one cable rack A has been improved in strength by screw fixing at two places. Since the strength is improved by the locking piece 3, only one screw fixing is required, and effects such as saving of construction, reduction of members, and reduction of processing cost can be obtained.

The connecting piece 4 has a mounting hole 5 to the main girder B of the cable rack A to connect the pair of opposing pieces 2a and 2b. Mounting hole
5 are provided at two places at both ends in the length direction. This connecting piece 4
Is provided with a protruding surface 6 which is arranged so as to overlap the depressed surface Bc of the parent girder B of the cable rack A. Here, the width of the protruding surface 6 is formed to be smaller than the width of the depressed surface Bc. Therefore, the displacement of the connecting member 1 in the width direction of the master girder B is not hindered by the protruding surface 6 being restricted by the depressed surface Bc.

The connecting member 1 is attached and fixed to the cable racks A as follows, and connects the cable racks A to each other.

First, the locking piece 3 of the one opposing piece 2a is hooked to the tip of the upper bent portion Ba between the adjacent cable racks A, A, and the connecting piece 4 is connected to the main girder of the cable rack A. B is arranged so that the other opposing piece 2b overlaps the lower bent portion Bb of the cable rack A. Thereby, the connection member 1 is once attached to the cable rack A.

Next, if necessary, position adjustment in the longitudinal direction of the cable rack A is performed so that the position of the mounting hole 5 of the connecting member 1 is properly matched with the position of the mounting hole Bd of each cable rack A. Do. At this time, since a gap is provided between the other opposing piece 2b and the lower bent portion Bb of the cable rack A, the connection member 1 and the parent girder of the cable rack A are provided.
Friction resistance is less likely to occur with B. Therefore,
The connection member 1 can be easily slid in the longitudinal direction of the cable rack A, and the position of the connection member 1 can be easily adjusted. Furthermore, since the projecting surface 6 of the connecting member 1 is formed to be narrower than the depressed surface Bc of the cable rack A, frictional resistance is less likely to occur, and the position of the connecting member 1 is more easily adjusted. be able to.

Then, the connecting member 1 is fixed by screwing the mounting hole 5 of the cable rack A and the mounting hole Bd of the connecting member 1 with bolts and nuts. At this time, since the connection member 1 is temporarily fixed by being locked to the upper end bent portion Ba of the cable rack A, there is no need to support the connection member 1 so that the connection member 1 does not come off from the cable rack A. The fixing work by the stop can be easily performed using both hands.

Next, another embodiment of the present invention will be described with reference to FIGS.

FIG. 8 shows cable racks A of different sizes.
This is a mode of connecting the two. In this case, the connecting member
The one opposing piece 2a is provided with a step, and the locking piece 3 is provided only on either the low part or the high part.

FIG. 9 shows an embodiment in which the cable rack A is bent and connected in the vertical direction. In this case, the connecting member
Reference numeral 1 denotes a first connecting portion 1a and a second connecting portion 1b. The connecting portions 4 of the two are provided with contact portions 7 overlapping each other, and are rotatably connected by a shaft portion 8 perpendicular to the contact portions 7. It is. And the locking piece 3 is provided in either the first connection part 1a or the second connection part 1b.

FIG. 10 shows an embodiment in which the cable rack A is connected by being bent in the horizontal direction. In this case, the connection member 1 is composed of a first connection portion 1a and a second connection portion 1b, and the side edges of the connection pieces 4 are connected to each other in a knot structure. And the locking piece 3 is provided in either the first connection part 1a or the second connection part 1b.

The locking piece may be provided on the entire length of the facing piece, or may be provided partially. In addition, the connection member can be easily attached to the cable rack and temporarily fixed when the plurality of cable racks are connected, but on the contrary, when the plurality of connected cable racks are disassembled.
It goes without saying that the screws can be easily removed from the temporarily fixed state where the screws are released.

As shown in FIGS. 11 (a) and 11 (b), the locking piece 3 may be simply turned up and down. Needless to say, similarly to the locking piece 3 in the above-described case, the strength is further improved. Therefore, conventionally, the connecting member 1
When fixing the cable rack A to the cable rack A with the screw member, one of the adjacent cable racks A, A
Although the strength was improved by screwing and fixing at two places, the strength was improved by the locking piece 3 so that only one screw and fixing was required, and it was possible to save construction, reduce materials, reduce processing costs, etc. The effect is obtained.

By the way, as a method of connecting the cable racks, conventionally, as one method of connecting the cable racks A, A with a connecting fitting, one end of the connecting fitting is attached to one end of the cable rack A to be connected. Loosely tighten the screws so that they are not completely tightened, temporarily fix them, and then insert them into the end of the other cable rack from the longitudinal direction, and connect the other cable rack and the other end of the connection bracket. There was also a method of fixing with screws and finally tightening the screws.

However, in this case, when inserting the temporarily fixed connection fitting into the end of the other cable rack,
Insertion was difficult because the connection fitting was in an unstable state due to temporary fixing. Even if it can be inserted and arranged, the other end side of the connection fitting and the other cable rack only have a surface-to-surface overlap before screwing. It is in a stable state, and the connection fittings are likely to fall off from the cable rack before they are screwed together, which takes a lot of work. Such a problem is the same whether the connection fitting temporarily fixed to one cable rack is inserted into the other cable rack or the case where the other cable rack is inserted into the connection fitting.

On the other hand, according to the present invention, one end in the longitudinal direction of the connecting member is connected to the end of one cable rack, and then the end of the other cable rack is connected to the longitudinal end of the connecting member. By guiding the locking piece at the other end in the direction, it can be inserted from the longitudinal direction and connected to the connecting member. That is, the locking piece of the connection fitting is locked to the bent part of the other cable rack parent girder, and the parent girder is held inside the connection fitting, so that the mutual operation is ensured. Thus, the other cable rack can be guided and inserted and inserted easily and reliably in a stable state.

According to the present invention, by adopting such a connection method, one of the bent portions at both ends of the parent girder is surrounded so as to surround the one bent portion, and at the same time, it functions as an inviting member at the time of insertion. Even after that, the function of preventing the falling off from the parent girder can be performed by the locking piece, and it is no longer difficult to insert the locking piece because of the instability as in the prior art. In addition, it is possible to easily attach the cable rack to the cable rack and temporarily fix the cable rack, and to easily adjust the position even after the temporary fixing. In addition, the fixing work can be easily performed in a temporarily fixed state, and as a result, it does not come off from the main girder and drop off, and furthermore, there is no trouble in construction, and it is attached and fixed to the cable rack. Can be performed satisfactorily, and the workability is improved.

[0029]

The connecting member of the present invention can be easily attached to a cable rack and temporarily fixed, the position can be easily adjusted even after the temporary fixing, and the fixing work can be easily performed in the temporarily fixed state. Can be mounted and fixed to the cable rack in a favorable manner.

Further, the connecting method of the present invention provides a function of guiding at the time of insertion by surrounding one of the bent portions at both ends of the parent girder, and also allows the connection after the insertion. In addition to performing the function of preventing falling off from the parent girder with the stopper, it can be easily attached to the cable rack and temporarily fixed, easy to adjust the position even after temporary fixing, fixed in the temporarily fixed state For example, the work can be easily performed, the mounting and fixing to the cable rack can be performed well, and the workability is improved.

[Brief description of the drawings]

FIG. 1 shows one embodiment of the present invention, and is a side view of a state in which a connecting member is temporarily fixed by being attached to a cable rack.

FIG. 2 is an exploded plan view showing the connection member and a cable rack.

FIG. 3 is a side view immediately before the connection member is attached to a cable rack and temporarily fixed.

FIG. 4 is a front view of a state where the connection member is attached to a cable rack and temporarily fixed.

FIG. 5 is a front view showing a state where the position of the connection member is adjusted.

FIG. 6 is a perspective view showing a state where the connection member is partially fixed to a cable rack.

FIG. 7 is a perspective view showing a state where the connection member is fixed to a cable rack.

FIG. 8 is a partially omitted perspective view showing another embodiment of the present invention.

FIG. 9 is a partially omitted perspective view showing another embodiment of the present invention.

FIG. 10 is a partially omitted perspective view showing another embodiment of the present invention.

FIG. 11A is a side view showing another embodiment of the present invention, in which the connection member is attached to a cable rack and temporarily fixed, and FIG. 11B is a side view of FIG. It is the side view which showed only the connection member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection member 2a One opposing piece 2b The other opposing piece 3 Locking piece 4 Connecting piece 5 Mounting hole A Cable rack B Parent girder Ba Upper bent part Bb Lower bent part

Claims (3)

[Claims] 1. A pair of opposed pieces arranged to overlap both end bent portions of a parent girder of a cable rack, and a connecting piece for connecting the pair of opposed pieces having a mounting hole to the parent girder of the cable rack. And a locking member for locking the tip of the upper bent portion of the parent girder on the one opposing piece, and the other opposing piece is provided on the one opposing piece. A connection member for a cable rack, wherein a piece is provided so that a gap is formed between the piece and the lower bent portion of the main girder in a state where the piece is in contact with the upper bent portion of the main girder. 2. The main girder of the cable rack has a depressed surface, and the connecting piece has a protruding surface arranged to overlap the depressed surface, and the width of the protruding surface is reduced by the depressed surface. The connecting member for a cable rack according to claim 1, wherein the connecting member is formed to be narrower than a width of the surface. 3. A cable rack connecting method for connecting cable racks using the cable rack connecting member according to claim 1 or 2, wherein the cable rack is connected to a longitudinal end of one of the cable racks. Direction, and then the other end of the cable rack is inserted from the longitudinal direction by the guidance of the locking piece at the other longitudinal end of the connecting member, and is connected with the connecting member. A method for connecting a cable rack, comprising: