JP2000234440A - Temporary scaffold materials for rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide temporary scaffold materials for rack capable of being temporarily built in the air, eliminating a tube and coupler scaffold on the floor, reducing a construction cost and preventing an obstacle to another work. SOLUTION: Rack temporary scaffold materials 100 are equipped with a holding frame 20 having a holding section 22 with a U-shaped cross section inserting a horizontal piece of an L-angle thereinto, an eccentric cam 24 fixing the horizontal piece inserted into the holding section 22 thereto and scaffold board bearing materials 30 extended to at least one side of cable racks parallel with the horizontal piece from the holding frame 20. Then, a maintaining section 21 having an insertion hole 21a is monolithically provided to the holding frame 20. The scaffold board bearing materials 30 are inserted into the insertion hole 21a of the holding frame 20 loaded to the horizontal piece of the L-angle and are extended to one side of the cable racks.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary scaffolding material for a rack which is used, for example, for temporarily laying a working scaffold next to a cable rack during a cable laying operation in plant construction.

[0002]

2. Description of the Related Art FIG. 19 is a perspective view showing an installed state of a cable rack. In FIG. 19, the cable rack 1
Is constructed by arranging a pair of parent girders 1a in parallel with each other, and connecting the bottoms of the pair of parent girders 1a at predetermined intervals by child girders 1b. Then, a pair of suspension bolts 2 is suspended from the ceiling at predetermined intervals along a cable extending route, and an L-shaped angle 3 is attached to a lower end of each of the pair of suspension bolts 2. The cable racks 1 are successively placed on the L-shaped angles 3 suspended at predetermined intervals in the air as described above, and the ends of the adjacent cable racks 1 are connected with the fittings 4.
And a bolt 5, and the main girder 1 a of the cable rack 1 is fixed to the L-shaped angle 3 by a steadying bracket 6, and the cable rack 1 is installed along the cable extending route.

A conventional cable laying operation on the cable rack 1 thus installed will be described with reference to FIG. First, single-pipe scaffolds 9 composed of single pipes 9a are assembled at predetermined intervals on a floor 8 along an extension path of the cable rack 1 suspended from the ceiling 7. Then, a scaffold plate 10 made of a steel plate is erected between the single pipe scaffolds 9. Thereafter, an operator gets on the scaffolding board 10, stores and arranges the cables 11 in the cable rack 1, and lays the cables. Then, when the laying work of the cable 11 is completed, the scaffold plate 10 is removed,
The single pipe scaffold 9 is dismantled and removed.

Here, as shown in FIG. 19, the cable racks 1 are successively mounted on an L-shaped angle 3 attached to the lower ends of a pair of suspension bolts 2 suspended from the ceiling at predetermined intervals. , Is described as being fixed to the L-shaped angle 3 and installed along the extension path of the cable, but is installed along the extension path as shown in FIGS. 21 and 22. There is also. FIG. 21 is a perspective view showing another installation state of the cable rack. In this case, instead of the suspension bolts 2, L-shaped angles 12 are suspended from the ceiling at predetermined intervals in pairs, and the L-shaped angles 3 are fixed to the lower ends of the paired L-shaped angles 12 using fixing screws 13. Then, the cable rack 1 is successively mounted on the L-shaped angle 3, fixed to the L-shaped angle 3 by using a steady rest 6, and installed along the cable extending route. FIG.
2 is a perspective view showing still another installation state of the cable rack. In this case, the support plates 14 are attached to the wall surface along the cable extending path at predetermined intervals, the L-shaped angles 3 are horizontally welded to the support plates 14, and the L-shaped angles 15 for reinforcement are further attached to the support plates. 14 and the L-shaped angle 3. Then, the cable rack 1 is mounted on the L-shaped angle 3 in a row, fixed to the L-shaped angle 3 by using a steady rest 6, and installed along the cable extension path.

[0005] In the cable rack 1 installed as shown in FIGS. 21 and 22, as shown in FIG. 20, the single pipe 9 a is placed on the floor 8 along the extension path of the cable rack 1. Single pipe scaffolds 9 are assembled at predetermined intervals, and a scaffold board 10 made of a steel plate is erected between the single pipe scaffolds 9.
Are stored and aligned in the cable rack 1 and laid.

[0006]

As described above, the conventional cable laying operation is performed by the cable rack 1 extending in the air.
A large number of single-tube scaffolds 9 are assembled on a floor 8 along the line, and a scaffold plate 10 is erected between the single-tube scaffolds 9. Therefore,
A large amount of scaffolding material is required, and there is a problem that a large amount of labor is required for carrying the scaffolding material into the work place, assembling and dismantling the scaffold, and removing the scaffold from the work place. In addition, a hand tool such as a spanner is required for assembling and disassembling the single-pipe scaffold 9, and there is a problem that a work load is increased. In addition, a large amount of space is occupied by the single-pipe scaffold 9 installed on the floor 8, which is necessary for a long period of time.
There was also a problem that other works such as mechanical plumbing work under the cable rack 1 were delayed, and the work period was lengthened. Further, when facilities such as mechanical piping, equipment, and water distribution pipes are already installed under the extension route of the cable rack 1, it is necessary to assemble the single pipe scaffold 9 avoiding these existing facilities. The additional scaffolding material adds to the labor and cost of loading the scaffolding material into the workplace, assembling, dismantling, and removing the scaffold from the workplace.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and enables a scaffold to be assembled in the air using an L-shaped angle for supporting a rack, thereby providing a single-tube scaffold installed on the floor. It eliminates the need for space, frees up space under the cable rack, eliminates the work of assembling and dismantling single-pipe scaffolding, reduces construction costs, secures passages for people and vehicles, and obstructs other construction work. It is an object of the present invention to obtain a temporary scaffolding material for a rack, which can suppress the occurrence of the problem.

[0008]

A temporary scaffolding material for a rack according to the present invention is a temporary scaffolding material for a rack hung at predetermined intervals and mounted on an L-shaped angle supporting a cable rack by horizontal pieces thereof. A holding frame having a U-shaped cross-section holding portion into which the horizontal piece of the L-shaped angle is inserted, and the L-shaped angle having the horizontal piece inserted into the holding portion are fixed to the holding frame. And a scaffold support that extends from the holding frame to at least one side of the cable rack in parallel with the horizontal piece.

The holding frame has a cylindrical holding portion having an insertion hole into which the scaffold support is inserted, and a length direction of the U-shaped groove is parallel to a center of the insertion hole. And the above-mentioned holding part integrally formed on one side upper part of the above-mentioned holding part.

The holding frame is provided integrally with one side of the holding portion, and has a support arm for supporting a tip end of a vertical piece of the L-shaped angle having the horizontal piece inserted into the holding portion. Is what it is.

The holding frame is formed integrally with one side of the holding portion, and a receiving portion having a surface substantially perpendicular to the depth direction of the U-shaped groove of the holding portion is provided at a distal end thereof. And a support arm for supporting the L-shaped angle by receiving the inner wall surface of the vertical piece of the L-shaped angle with the horizontal piece inserted into the holding portion by the receiving portion.

Further, the receiving portion and the lower piece of the grip portion are formed as an integral body having a substantially L-shaped outer diameter.

Further, a slide rail extends in the length direction on the inner wall surface of the insertion hole of the holding portion, and a groove for engaging with the slide rail extends in the length direction on the outer wall surface of the scaffold plate support. Is what is being done.

Further, the insertion hole of the holding portion is formed in a rectangular cross section, the slide rail is formed on each of four sides of the insertion hole, and the scaffold plate supporting member has an outer diameter substantially matching the inner diameter shape of the insertion hole. The scaffold plate supporting member is formed in a shape, and the groove for engaging with the slide rail is formed on each of four sides of the scaffold plate support member.

The slide rails formed on the opposite sides are formed symmetrically with respect to the center of the insertion hole, and the grooves formed on the opposite sides are formed on the scaffold plate support member. It is formed symmetrically with respect to the axis.

Further, the holding frame and the scaffold plate support member are formed separately, and a slide rail is formed on one of the holding frame and the scaffold plate support material over the entire area in the length direction. A groove to be fitted to a rail is formed in the other of the holding frame and the scaffold plate support over the entire area in the length direction.

Further, the holding frame and the scaffold plate supporting material are drawn materials.

Further, the fixing means is an eccentric cam rotatably mounted on the grip portion.

The fixing means may include a mounting piece extending downward from the support arm, and a first axis having one end side parallel to the depth direction of the U-shaped groove of the grip portion. A first holding plate rotatably attached to the mounting piece, and one end side of the first holding plate is parallel to the depth direction of the U-shaped groove of the gripping portion on the mounting piece, and the lengthwise direction of the U-shaped groove is A second pressing plate rotatably mounted around a second axis separated from the first axis by a predetermined distance; and a second pressing plate rotatably mounted on the first and second pressing plates. A connecting plate that is attached and connects the first and second pressing plates; and a first piece and a second piece that are respectively drilled at positions corresponding to the first and second axes of the upper piece of the gripping part. First and second locking holes into which the other ends of the first and second holding plates are inserted when the holding plate rotates. Is secured to the other end of the first and second pressing plates, when said other end of the first and second pressing plate is inserted into said first and second locking holes,
First and second locking pieces that engage the upper piece of the gripping portion to lock the first and second holding plates.

Further, the first and second holding plates are
When the other end is inserted into the first and second locking holes, the horizontal piece is configured to press the vertical piece of the L-shaped angle inserted into the holding portion toward the holding portion. Is what it is.

Further, the holding frame and the scaffold plate support member are integrally formed.

Further, the grip portion having the U-shaped cross section is formed on both sides of the scaffold plate support member.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is an exploded perspective view showing a temporary scaffolding material for a rack according to Embodiment 1 of the present invention, and FIG. 2 is a side view showing a holding frame of the temporary scaffolding material for racks according to Embodiment 1 of the present invention. 1 and 2, a temporary scaffolding material 100 for a rack is provided with a holding frame 20 attached to the L-shaped angle 3, and a scaffold plate extending from the holding frame 20 in parallel with the L-shaped angle 3 to support the scaffold plate. And a support member 30. The holding frame 20 is made by aluminum drawing, and has a hollow holding portion 21 provided with an insertion hole 21a having a rectangular cross section for inserting the scaffolding plate support member 30;
A groove 22a for integrally inserting the horizontal piece 3a of the L-shaped angle 3 is provided integrally with the upper portion of one side of the holding portion 21.
A holding portion 22 having a U-shaped cross section formed by 2 c and a lower piece 22 b, and extending outward from one side surface of the holding frame 21;
Support arm 2 for receiving the tip of vertical piece 3b of L-shaped angle 3
3 and a fixing means rotatably mounted on the end face of the lower piece 22b of the grip portion 22 and biting the horizontal piece 3a of the L-shaped angle 3 inserted into the groove 22a to prevent the L-shaped angle 3 from coming off. Eccentric cam 24. Further, a fixing screw 25 for fixing the scaffold plate support member 30 inserted into the insertion hole 21a is screwed to the other side surface of the holding frame 21. The insertion hole 21a of the holding portion 21 is
Parallel to the length direction of the insertion hole 21a, four slide rails 21b to 21e are provided on the wall surface of the insertion hole 21a so as to extend vertically, horizontally, and in parallel with the center of the insertion hole 21a over the entire area in the length direction. And the upper and lower slide rails 21
b and 21c are formed symmetrically with respect to the center of the insertion hole 21a, and the left and right slide rails 21d and 21e are formed symmetrically with respect to the center of the insertion hole 21a. Also, the support arm 23
A projection 23a is provided at the tip of the projection 23a. A receiving section 23b which is an end face of the projection 23a and a receiving section 23 which is an end face of the support arm 23.
c, it is possible to receive the tip portions of the vertical pieces 3b of the two types of L-shaped angles 3.

The scaffold plate support member 30 is formed into a hollow rectangular rod having a rectangular outer diameter substantially matching the inner diameter of the insertion hole 21a of the holding portion 21 by drawing aluminum. On each outer wall surface of the scaffold plate support member 30, grooves 30a to 30d to be fitted to the above-described slide rails 21b to 21e extend in the length direction over the entire area in the length direction. Also,
The bottoms of these grooves 30a to 30d are formed with a large diameter. Further, through-holes 30e and 30f for supporting handrails described later are formed at both ends of the scaffold plate support member 30.

Next, a cable laying operation using the temporary rack scaffolding material 100 will be described. Holding frame 20
Is a horizontal piece 3 of the L-shaped angle 3 as shown in FIG.
The horizontal piece 3a is mounted by being pressed against the L-shaped angle 3 from the distal end side of the horizontal piece 3a so as to fit in the groove 22a. At this time, the holding frame 20 is inserted into the L-shaped angle 3 while the eccentric cam 24 is rotated clockwise in FIG. 3 by the horizontal piece 3a until the receiving portion 23b contacts the tip of the vertical piece 3b. When the holding frame 20 is to be pulled out, the eccentric cam 24 meshes with the horizontal piece 3a and is fastened and fixed, thereby preventing the holding frame 20 from coming off. Further, the receiving portion 23b is in contact with the tip of the vertical piece 3b, and the clockwise rotation of the holding frame 20 in FIG. 2 is prevented. Note that the holding frame 20 rotates the eccentric cam 24 slightly clockwise in FIG. 3 to release the tightening of the horizontal piece 3a by the eccentric cam 24, maintain the state, and pull out. In the pulled-out holding frame 20, the eccentric cam 24 rotates counterclockwise in FIG. 3 and returns to the initial state because the center axis is eccentric. In the first embodiment, two receiving portions 23 are provided at the distal end of the support arm 23.
Since b and 23c are provided, as shown by the dashed line in FIG. 2, the receiving portion 23c can abut on the distal end portion of the large L-shaped angle, and can be mounted on L-shaped angles of different sizes.

Next, the scaffold plate supporting member 30 is inserted into the insertion hole 21a of the holding portion 21 of the holding frame 20, the fixing screw 25 is tightened, and the scaffold plate supporting member 30 is fixed to the holding portion 21 (holding frame 20).
, A temporary scaffolding material 100 for a rack is temporarily provided.
At this time, each of the grooves 30a to 30d is
1b to 21e, and slide rails 21b to 21e
And the scaffold plate support member 30 is smoothly inserted into the insertion hole 21a. Then, as shown in FIG. 4, the holding frame 20 is an L-shaped angle 3 for supporting the cable rack 1.
The scaffolding plate support member 30 attached to the center of the horizontal piece 3a and attached to the holding frame 20 extends to one side of the cable rack 1. Furthermore, the support column 40 for the handrail is a scaffold plate support material 3.
No. 0 is inserted and fixed in the through hole 30e.

The temporary rack scaffolding materials 100 are temporarily provided at predetermined intervals along the extension path of the cable rack 1. Then, the scaffold plate 41 is erected on the adjacent rack temporary scaffolding material 100. Next, as shown in FIG. 5, the longitudinal direction of the retaining piece 43 b at the tip of the fixing bracket 43 is inserted into the groove 3.
0a to the groove 30 from the gap between the adjacent scaffolding plates 41.
a and then turn 90 degrees, then wing nut 43b
To fix the scaffold plate 41 to the scaffold plate support 30. Further, a pipe for handrail (not shown) is installed between the adjacent handrail posts 40, and the scaffold is temporarily provided along the extending route of the cable rack 1. After that, the worker gets on the scaffold plate 41, stores and arranges the cables in the cable rack 1, and lays the cables. Then, when the cable laying operation is completed, the worker moves from one end of the extension path of the cable rack 1 to the other end, and the handrail support 40, the handrail tube, the scaffold plate 41, the rack temporary scaffolding material The scaffold is dismantled and removed by sequentially removing 100 etc.

As described above, according to the first embodiment,
A holding frame 2 having a U-shaped cross-section gripping portion 22 into which a horizontal piece 3a of an L-shaped angle 3 suspended from a ceiling is inserted.
0 and an eccentric cam 24 rotatably mounted on the end face of the grip 22 and fixing the horizontal piece 3a inserted into the grip 22.
And a scaffold plate support member 30 extending from the holding frame 20 to one side of the cable rack 1 in parallel with the horizontal piece 3a, so that the scaffold plate support member 30 extends along the extension path of the cable rack 1. The scaffold can be temporarily provided, and the scaffold can be temporarily provided in the air using the scaffold plate support member 30. Therefore, a single pipe scaffold installed on the floor becomes unnecessary, and the space below the cable rack 1 is released, so that the assembly of the single pipe scaffold,
There is an effect that labor for dismantling work is eliminated, construction costs are reduced, passages for people and vehicles can be secured, and obstacles to other construction can be suppressed. Furthermore, the holding frame 20 can be operated with one touch without using a hand tool such as a spanner.
Can be attached to and detached from the L-shaped angle 3, so that the work load of attaching and detaching the holding frame 20 can be significantly reduced,
There is no need for the operator to have a hand tool on the waist belt or the like, and the workability of attaching and detaching the holding frame 20 at a high place can be improved.

The holding frame 20 includes a cylindrical holding portion 21 having an insertion hole 21a into which the scaffold plate support member 30 is inserted.
The grip part 2 integrally formed on one upper side of the holding part 21
2, the extension direction of the scaffolding plate support member 30 can be arbitrarily selected. Therefore, even when the cable rack 1 is extended near the wall, the scaffold plate support member 30 can be extended to the opposite wall side, and can be in any direction regardless of the direction of the L-shaped angle 3. Since the scaffold plate support member 30 can be extended to the outside, excellent versatility can be obtained. In addition, a support arm 23 extends from one side of the holding unit 21,
Since the tip of the vertical piece 3b of the L-shaped angle 3 is supported, the rotation of the holding frame 20 around the L-shaped angle 3 is prevented, and the stability can be improved. Further, since the receiving portions 23b and 23c are provided at the distal end portion of the support arm 23, it can be applied to two types of L-shaped angles 3 having different lengths of the pieces, and excellent versatility is obtained.

Further, since the slide rail is provided on the inner wall surface of the insertion opening 21a of the holding portion 21, and the groove for fitting to the slide rail is provided on the outer wall surface of the scaffold plate support member 30, the groove is formed on the slide rail. The scaffold plate support member 30 is inserted into the insertion hole 21a while guiding the slide rail,
The assemblability can be improved. Also, the insertion hole 21a
Are formed in a rectangular cross section, and slide rails 21b to 21e
Are provided on each side of the insertion hole 21a, the scaffold plate support member 30 is formed in an outer diameter shape substantially matching the inner diameter shape of the insertion hole 21a, and grooves 30a to 30d are provided on each side of the scaffold plate support material 30. The upper and lower slide rails 21b, 21c
The upper and lower grooves 30a, 30b are fitted to each other to prevent rattling in the left-right direction, so that the left and right slide rails 21d, 21
By fitting e with the left and right grooves 30c and 30d, vertical play is prevented, and stability can be improved. The slide rails 21b and 21c and the slide rails 21d and 21e are inserted into the insertion holes 21 respectively.
a, and grooves 30a, 31b
Since each other and the grooves 30c and 30d are formed symmetrically with respect to the axis of the scaffold plate support member 30, the scaffold plate support member 30 can be inserted into the insertion hole 21a even when rotated by 180 degrees. The assemblability can be improved.

Further, the holding frame 20 and the scaffold plate support member 30
Since aluminum is a drawn material of aluminum, there is almost no machining, the yield is increased, it can be manufactured inexpensively, the weight can be reduced, and the work labor can be greatly reduced.

Since the temporary installation of the rack scaffold is performed at a high place, the above-described improvement of the assemblability and the reduction of the work load by weight reduction are significant. The gap between the horizontal piece 3a of the L-shaped angle 3 and the child girder 1b of the cable rack 1 is 10 mm.
However, since the grip portion 22 is formed in a U-shaped cross section, the height of the grip portion 22 protruding from the horizontal piece 3a can be reduced, and without interference with the sub-spar 1b, the L-shaped angle 3 can be reduced. It can be mounted on the horizontal piece 3a. The upper surface of the scaffolding plate support member 30 is one step lower so as to avoid interference with the bottom of the parent girder 1a of the cable rack 1. In the first embodiment, a cable rack 1 is used in which a pair of parent girders 1a are arranged in parallel with each other, and the bottoms of the pair of parent girders 1a are connected at predetermined intervals by child girders 1b. However, the cable rack is not limited to this, and may be, for example, a cable rack configured to close the bottoms of a pair of side plates parallel to each other with the bottom plate. In the first embodiment, the holding frame 20 and the scaffolding support member 30 are made of a drawn aluminum material. However, the drawn material is not limited to aluminum. For example, a metal such as iron, Similar effects can be obtained by using graphite resin or engineering plastic. Further, in the first embodiment, the holding frame 20 and the scaffolding support member 30 are manufactured by drawing, but the holding frame 20 and the scaffolding support member 30 are not limited to the drawing process, but may be formed by bending, cutting, or the like. It goes without saying that it may be manufactured. In the first embodiment, the two receiving portions 23 b and 23
Although c is provided, one or more receiving portions may be further provided at the tip of the support arm 23. In this case, it can be applied to three or more types of L-shaped angles having different lengths of the pieces, and the versatility can be further improved.

Embodiment 2 FIG. FIG. 6 is a side view showing a configuration of a temporary scaffolding material for a rack according to Embodiment 2 of the present invention. In FIG. 6, a temporary scaffolding material 101 for a rack includes a holding frame 50 attached to the L-shaped angle 3, and a scaffolding plate supporting material 55 extending from the holding frame 50 in parallel with the L-shaped angle 3 and supporting the scaffold plate. It is composed of The holding frame 50 is manufactured by drawing aluminum, and is provided integrally with a holding portion 51 provided with a slide rail 51a for mounting the scaffold plate support material 55 on the other side, and an upper portion of one side of the holding portion 51. A groove 52a for inserting the horizontal piece 3a of the L-shaped angle 3 is formed by an upper piece 52c and a lower piece 52b. And a supporting arm 53 that receives the tip of the vertical piece 3b of the L-shaped angle 3 and an L-shaped angle that is rotatably mounted on the end surface of the lower piece 52b of the gripper 52 and inserted into the groove 52a. An eccentric cam 24 is provided as fixing means for preventing the L-shaped angle 3 from coming off by biting the horizontal piece 3a of the third. Further, on one side surface of the holding frame 51,
A fixing screw 25 for fixing the attached scaffold plate support member 55 is screwed. Slide rail 5 of holding section 51
1a is parallel to the groove 52a of the gripper 52,
On the other wall surface over the entire area in the length direction. A projection 53a is provided at the tip of the support arm 53, and a receiving portion 53b, which is an end surface of the projection 53a, and a receiving portion 53c, which is an end surface of the support arm 53, have two types of vertical pieces 3b of the L-shaped angle 3. Can be received.

The scaffolding plate support member 55 is formed into a hollow rectangular rod by drawing aluminum, and has a groove 55a having an inner diameter substantially matching the outer diameter of the slide rail 51a of the holding portion 51 on the left and right outer wall surfaces. 55d extend over the entire area in the length direction. Grooves 55 are formed on upper and lower outer wall surfaces.
e, 55f extend over the entire area in the length direction. The bottoms of the grooves 55e and 55f are formed with a large diameter. Further, though not shown, through-holes for supporting handrails are formed at both ends of the scaffold plate support member 55.

The temporary scaffolding material 101 for a rack constructed as described above is constructed such that the holding frame 50 is firstly L-angled from the leading end of the horizontal piece 3a such that the horizontal piece 3a of the L-type angle 3 fits into the groove 52a. 3 and attached. At this time,
The eccentric cam 24 meshes with the horizontal piece 3a and is fixedly fastened.
The holding frame 50 is prevented from coming off. In addition, receiving portion 53b
Abuts on the tip of the vertical piece 3b, and the rotation of the holding frame 50 around the L-shaped angle 3 is prevented. In the temporary scaffolding material 101 for racks as well, since the two receiving portions 53b and 53c are provided at the distal end of the support arm 53, the receiving portion 53c can abut on the distal end of the large L-shaped angle, which is different. It can be attached to large L-shaped angles.

Next, the grooves 55a and 5a of the scaffold
5b is a slide rail 51 of the holding portion 51 of the holding frame 50.
a, the slide rail 51a is used as a guide, the slide is performed, the fixing screw 25 is tightened, and the scaffold plate support member 55 is fixed to the holding portion 51 (holding frame 50). The material 101 is temporarily provided. The scaffold support 55 attached to the holding frame 50 extends to one side of the cable rack 1. Furthermore, the handrail support is inserted and fixed in the through hole of the scaffold plate support member 55.

The temporary rack scaffolding materials 101 are temporarily provided at predetermined intervals along the extension path of the cable rack 1. Then, the scaffold plate 41 is erected on the adjacent rack temporary scaffolding material 101. Next, the scaffold plate 41 is fixed to the scaffold plate support member 55, and further, a railing tube is erected between adjacent railing posts, and the scaffold is temporarily provided along the extension path of the cable rack 1 in a hollow state. Therefore, also in the second embodiment, the same effect as in the first embodiment can be obtained.

In the second embodiment, the slide rail 51a is provided on the holding portion 51, and the grooves 55a, 55b
Are provided on the scaffolding plate support 55, but a slide rail is provided on the scaffolding plate support 55, and the groove is
1, the same effect can be obtained.

Embodiment 3 FIG. 7 is a perspective view showing a temporary scaffolding material for a rack according to Embodiment 3 of the present invention. In FIG. 7, a temporary scaffolding material 102 for a rack includes a holding frame 60 attached to the L-shaped angle 3, and a scaffold plate support 63 extending from the holding frame 60 in parallel with the L-shaped angle 3 and supporting the scaffold plate. It is composed of Holding frame 60
Is made of a steel plate, and the horizontal piece 3a of the L-shaped angle 3
A groove 61a for inserting a groove is provided, and a gripping portion 61 having a U-shaped cross section is provided.
Support arm 62 for receiving the tip of vertical piece 3b of mold angle 3
And rotatably mounted on the end face of the grip portion 61, and the groove 61a
Bites the horizontal piece 3a of the L-shaped angle 3 inserted into the
An eccentric cam 24 as fixing means for preventing the mold angle 3 from coming off is provided. Further, the scaffold plate support member 63 is formed in an L shape from a steel material. This scaffold plate support 63
Is formed with a through hole 63a for supporting a handrail at one end thereof. The temporary rack scaffold 102 is integrally formed by welding the holding frame 60 to the other end of the scaffold plate support 63 at the welding portion 64.

The temporary scaffolding material 102 for a rack constructed as described above is provided such that the holding frame 60 is firstly L-angled from the leading end of the horizontal piece 3a such that the horizontal piece 3a of the L-type angle 3 fits into the groove 61a. 3 and attached. At this time,
The eccentric cam 24 meshes with the horizontal piece 3a and is fixedly fastened.
The detachment of the holding frame 60 is prevented. In addition, the support arm 62
Is in contact with the tip of the vertical piece 3b, and the rotation of the holding frame 60 around the L-shaped angle 3 is prevented. And
By attaching the holding frame 60 to the horizontal piece 3 a, the scaffold plate support 63 extends to one side of the cable rack 1.
Furthermore, the support for the handrail is formed in the
a. The temporary scaffolding material 102 for the rack
Are temporarily provided at predetermined intervals along the extension path of the cable rack 1, and a scaffold plate is erected on the adjacent temporary scaffolding material 102 for the rack. Next, the scaffolding plate is fixed to the scaffolding plate support member 63, and further, a handrail tube is erected between adjacent handrailing posts, and the scaffolding is temporarily provided along the extension path of the cable rack 1 in a hollow state.

In the third embodiment, since the rack temporary support member 102 is made of steel, the weight cannot be reduced, and the holding frame 60 and the scaffold plate support member 63 are integrated by welding. Therefore, the same effect as in the first embodiment can be obtained except that the extending direction of the scaffold plate support member 63 is fixed. Further, since the holding frame 60 and the scaffold plate support member 63 are integrally formed, the number of parts is reduced, and the assembling property is improved.

Embodiment 4 FIG. 8 is a perspective view showing a temporary scaffolding material for a rack according to Embodiment 4 of the present invention. In FIG. 8, the temporary rack scaffolding material 104 has welding portions 64 on both sides on one end side of a hollow square timber scaffolding plate supporting material 65 in which the holding frame 60 attached to the L-shaped angle 3 is made of steel.
It is constituted by being integrated by welding. Therefore, also in the fourth embodiment, the same effect as in the third embodiment can be obtained. In the fourth embodiment, since the holding frames 60 are provided on both sides of the scaffold plate support member 65 as compared with the third embodiment, the scaffold support from the cable rack is performed regardless of the direction of the L-shaped angle. Although the extending direction of the member 65 can be selected, there is a problem that the weight is further increased.

Embodiment 5 FIG. In the first embodiment, the eccentric cam 24 is used as the fixing means.
In the fifth embodiment, as shown in FIG. 9, a fixing screw 66 screwed to the lower piece 22b of the grip portion 22 having a U-shaped cross section is used as the fixing means. In the fifth embodiment, the horizontal piece 3a of the L-shaped angle 3 is
After being inserted into the groove 22a, the horizontal piece 3a can be fixed to the grip portion 22 by tightening the fixing screw 66, so that the same effect as in the first embodiment can be obtained.

Embodiment 6 FIG. In the first embodiment, the eccentric cam 24 is used as the fixing means.
In the sixth embodiment, as shown in FIG. 10, a fixing pin 67 inserted into the upper piece 22c of the grip portion 22 having a U-shaped cross section is used as fixing means. In the sixth embodiment, the horizontal piece 3a of the L-shaped angle 3 is
After the fixing pin 67 is inserted into the groove 22a of FIG.
Since the L-shaped angle 3 is prevented from coming off by the projection of the fixing pin 67 by being attached to the upper piece 22c of the second embodiment, the same effect as in the first embodiment can be obtained.

Embodiment 7 FIG. 11 is a front view showing a holding frame applied to a temporary rack scaffold according to Embodiment 7 of the present invention, and FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG. 11 and 12, a U-shaped support plate 68 is fastened and fixed to a lower portion of the holding portion 22 of the holding portion 21 by a mounting screw 69a, and two U-shaped frame members 70 are formed. Along with the outer peripheral surface of the support plate 68, it is fastened and fixed by a mounting screw 69b. Further, fixing pieces 71 as fixing means having a tip portion having an inclined surface 71a are respectively housed in the two frame members 70 so as to be able to protrude and retract, and springs 72 are respectively provided at the bottom portions of the two frame members 70. A receiving portion 68b is formed by cutting out both sides of the support plate 68 and receiving the tip of the vertical piece 3b of the L-shaped angle 3. Therefore, the support plate 68 corresponds to a support arm. The other configuration is the same as that of the first embodiment.

In the seventh embodiment, the holding frame 20 is
The horizontal piece 3a of the mold angle 3 is pressed against the L-shaped angle 3 from the front end side of the horizontal piece 3a so as to be accommodated in the groove 22a. At this time, the inclined surface 71a of the fixed piece 71 is pressed by the tip of the vertical piece 3b of the L-shaped angle 3, and the fixed piece 7
1 is pushed into the frame 70 against the urging force of the spring 72. When the tip of the vertical piece 3b of the L-shaped angle 3 gets over the inclined surface 71a, the fixed piece 71 extends from the frame 70 by the urging force of the spring 72. Then, the horizontal piece 3a of the L-shaped angle 3 is housed in the grip portion 22, and the vertical piece 3
The leading end of “b” is sandwiched between the receiving portion 68 a and the fixing piece 71, and the L-shaped angle 3 and the holding frame 20 are fixed. Further, by pushing the fixing piece 71 into the frame 70,
The fixing between the mold angle 3 and the holding frame 20 is released, and the holding frame 20 can be removed.

As described above, also in the seventh embodiment, the horizontal piece 3a of the L-shaped angle 3 is prevented from coming off the grip portion 22, that is, the horizontal piece 3a can be fixed to the grip portion 22. An effect similar to that of the first embodiment can be obtained. Further, since the holding frame 20 can be attached to and detached from the L-shaped angle 3 with one touch without using a hand tool such as a spanner, the work load of attaching and detaching the holding frame 20 can be remarkably reduced, and the worker can use the hand on the waist belt or the like. It is not necessary to have a tool, and the workability of attaching and detaching the holding frame 20 at a high place can be improved.

In each of the above embodiments, the eccentric cam 24, the fixing screw 66, the fixing pin 67 or the fixing piece 7
1 is used as the fixing means, but the fixing means is not limited to these, and the horizontal piece 3a of the L-shaped angle 3 is used.
Can be fixed to the grip portion 22.

Embodiment 8 FIG. FIG. 13 is a side view showing a holding frame for temporary scaffolding material for a rack according to Embodiment 8 of the present invention. In FIG. 13, the support arm 26 is formed so as to be substantially perpendicular to the horizontal portion 26 b extending outward from one side surface of the holding portion 21 and the depth direction of the groove 22 a from the tip of the horizontal portion 26 b. And an extended receiving portion 26a. The receiving portion 26a is connected to the tip of the lower piece 22b of the grip portion 22, and the support arm 26 and the lower piece 22b are integrally formed. The holding frame 20A configured as described above is also manufactured by drawing aluminum. The other configuration is the same as that of the first embodiment.

The horizontal frame 3a of the L-shaped angle 3 is pushed into the groove 22a until the receiving portion 26a comes into contact with the vertical piece 3b of the L-shaped angle 3, so that the L-shaped angle is held. 3 is attached. Accordingly, the eccentric cam 24 meshes with the horizontal piece 3a to prevent the holding frame 20A from coming off, and the receiving portion 26a abuts on the entire inner wall surface of the vertical piece 3b to rotate the holding frame 20A clockwise in FIG. Since this is prevented, stable mounting of the holding frame 20A can be realized.

In the eighth embodiment, the support arm 2
6, the region surrounded by the lower piece 22b and the holding portion 21 is made hollow, but the support arm 26, the lower piece 22b
The region surrounded by the holding portion 21 may be solid. In this case, although there is a disadvantage that the material cost is increased and the weight is increased, large strength is obtained and more stable mounting of the holding frame 20A can be realized.

Embodiment 9 FIG. FIG. 14 is a side view showing a holding frame for temporary scaffolding material for a rack according to Embodiment 9 of the present invention. In FIG. 14, the support arm 26A is
And a receiving portion 26a integrally formed in an L-shape with the lower piece 22b. Then, grooves 27a and 27b extending along the length direction of the holding portion 21 are respectively provided at a connecting portion with the lower piece 22b of the holding portion 21 and a connecting portion with the receiving portion 26a of the horizontal piece 26b. An L-shaped integral body of the receiving portion 26a and the lower piece 22b is inserted into the grooves 27a and 27b, and then integrated by welding or the like to form the holding frame 20B. The holding frame 20B is also made by aluminum drawing.

The ninth embodiment has the same configuration as that of the eighth embodiment except that the receiving portion 26a and the lower piece 22b are integrally formed in an L-shape.
The same effects as in the eighth embodiment can be obtained.

Embodiment 10 FIG. FIG. 15 is a side view showing a holding frame for a temporary rack scaffolding material according to Embodiment 10 of the present invention. FIG. 16 is a top view showing a holding frame for a temporary racking scaffolding material according to Embodiment 10 of the present invention. FIG. 17 is a perspective view showing a holding frame for temporary scaffolding material for racks according to Embodiment 10 of the present invention, and FIG. 18 is an L-shaped angle of a holding frame for temporary scaffolding material for racks according to Embodiment 10 of this invention. It is a front view explaining the mounting operation of. 15 to 18,
A horizontal portion 26 extending outward from one side surface of the holding portion 21
b and a receiving arm 26a extending substantially perpendicularly to the depth direction of the groove 22a from the distal end of the horizontal frame 26b and connected to the lower piece 22b. Is provided. Further, the first mounting piece 28 is
b, and extends in parallel with the longitudinal direction of the groove 22a, and a second mounting piece 29 extends downward from the holding portion 21 and in parallel with the first mounting piece 28. ing.

An L-shaped operation handle 80 is rotatably disposed through the first and second mounting pieces 28 and 29 in the depth direction of the groove 22a from the holding portion 21 side. And
A short flat plate-like first holding plate 81 is provided with one end thereof extending from the first mounting piece 28 to the extension end 80 a of the operation handle 80.
(First shaft) and attached to the first attachment plate 28. Also, a short flat second holding plate 8 is provided.
The first mounting piece 2 is separated from the extended end 80a of the operation handle 80 by a predetermined distance in the longitudinal direction of the groove 22a.
8 is attached so as to be rotatable around a shaft 90 (second shaft) provided upright. Further, a flat connection plate 83 has first and second holding plates 81 and 82 at both ends thereof.
The first and second pressing plates 81 and 82 are connected to each other so as to be rotatable around shafts 91 and 92 provided upright. Locking pieces 81a and 82a are fixed to the other ends of the first and second holding plates 81 and 82, respectively. Locking holes 85 and 86 are formed in the upper piece 22c of the grip portion 22 so as to correspond to the extending end 80a and the shaft 90, respectively. These locking holes 85 and 86 include large-diameter holes 85a and 86a through which the locking pieces 81a and 82a are inserted, and large-diameter holes 85a and 86, respectively.
a and the first and second holding plates 8
1 and 82 are formed from small-diameter holes 85b and 86b through which the other end sides are inserted. Here, the first and second mounting pieces 28 and 29, the operation handle 80, the first and second pressing plates 81 and 82, the connecting plate 83, the locking pieces 81a and 82a, and the fixing holes 85 and 86 are fixed. Means are configured.

Next, the holding frame 21 constructed as described above is used.
A method of attaching the C to the L-shaped angle 3 will be described with reference to FIG. First, the operation handle 80 is rotated counterclockwise in FIG.
1, 82 are rotated to the positions shown by the dotted lines in FIG. Next, the holding frame 21C pushes the horizontal piece 3a of the L-shaped angle 3 into the groove 22a until the receiving portion 26a contacts the vertical piece 3b of the L-shaped angle 3. Then, the operation handle 80 is rotated clockwise in FIG. By the turning operation of the operation handle 80, the first and second pressing plates 81 and 82 are turned clockwise in FIG. 18 around the extension end 80a and the shaft 90. And the locking pieces 81a, 82a
Passes through the large diameter holes 85a, 86a of the locking holes 85, 86,
Next, the other end sides of the first and second holding plates 81 and 82 are inserted into the small diameter holes 85b and 86b, and the first and second holding plates 81 and 82 are inserted.
18 take the positions shown by solid lines in FIG. At this time, the locking pieces 81a and 82a elastically engage with the upper surface of the upper piece 22c of the grip portion 22, and the extension ends 80a and the shaft 90 of the first and second holding plates 81 and 82 are centered. The rotation is prevented in the counterclockwise direction in FIG. at the same time,
The first and second holding plates 81 and 82 are L-shaped angles 3
Of the vertical piece 3b, the holding frame 20C is prevented from coming off, and the holding frame 21C is mounted on the L-shaped angle 3. Further, the operation handle 80 is rotated counterclockwise,
The holding frame 20 </ b> C can be removed from the L-shaped angle 3 by returning the first and second holding plates 81 and 82 to the positions indicated by the dotted lines in FIG. 18.

As described above, the holding frame 21C is formed of the L-shaped angle 3
After being attached to the, as described in the first embodiment,
The scaffold plate support member 30 is inserted into the insertion hole 21a of the holding portion 21 of the holding frame 20C, and the fixing screw 25 is tightened to temporarily provide a rack temporary scaffold member.

Therefore, also in the tenth embodiment,
The same effects as in the first embodiment can be obtained. In the tenth embodiment, the inner surfaces of the horizontal piece 3a and the vertical piece 3b of the L-shaped angle 3 are received in close contact with the L-shaped outer wall composed of the lower piece 22b and the receiving portion 26a. The frame 20C is mounted on the L-shaped angle 3 in a stable state. Then, when the worker works on the scaffolding material erected on the temporary scaffolding material for racks,
Although a force that rotates clockwise in FIG. 15 around the mold angle 3 acts, the force is received when the receiving portion 26a comes into contact with the vertical piece 3b, and the holding frame 20C is prevented from coming off. further,
The first and second holding plates 81 and 82 are L-shaped angles 3
15 is engaged with the upper piece 22c in close contact with the vertical piece 3b, and the first and second forces rotating clockwise in FIG. 15 around the L-shaped angle 3 acting on the holding frame 20C during work.
Of the holding frame 20 </ b> C is prevented. Therefore, more stable mounting of the holding frame 20C to the L-shaped angle 3 can be realized. Also,
The holding frame 20C can be attached to and detached from the L-shaped angle 3 with one touch without using a hand tool such as a spanner.
The work load of attaching and detaching C can be significantly reduced, and the operator does not need to have hand tools on the waist belt, etc.
The workability of attaching and detaching the holding frame 20C at a high place can be improved.

In the tenth embodiment, the first and second pressing plates 81 and 82 are formed in a flat plate shape, but the first and second pressing plates 81 and 8 are formed.
2 may be made to protrude toward the holding portion 21 side. In this case, the projecting portions of the first and second pressing plates 81 and 82 elastically press the vertical pieces 3b of the L-shaped angle 3, so that there is no backlash between the holding frame 20C and the L-shaped angle 3. 20C can be securely attached to the L-shaped angle 3. In the tenth embodiment, the extension end 80a of the operation handle 80 is used as the rotation axis of the first holding plate 81 with respect to the first mounting piece 28. However, the first and second holding plates 81 and 82 are used. The operation handle is attached to the first attachment piece 28 so as to be rotatable about an axis set upright, and the operation handle is attached to the first holding plate 81 or the second holding plate 8.
2, and the first and second pressing plates 81 and 82 may be rotated around the axis by the operation handle.

In each of the above embodiments, the holding unit 21
Although the slide rails 21b to 21e are formed on the inner peripheral wall surface of the holding frame 21, it is not necessary to provide the slide rails 21b to 21e on the inner peripheral wall surface of the holding frame 21. For example, the inner peripheral surface of the holding frame is formed into a flat rectangular shape. It may be formed. In this case, the scaffold plate support can be formed in a rectangular cross-sectional shape having a flat outer peripheral surface, that is, a groove for fitting to the slide rail is not required, and the scaffold plate support can be easily manufactured, and the cost can be reduced accordingly. Can be

[0061]

Since the present invention is configured as described above, it has the following effects.

According to the present invention, there is provided a temporary scaffolding material for a rack which is hung at predetermined intervals and is attached to an L-shaped angle supporting a cable rack with horizontal pieces thereof.
A holding frame having a U-shaped cross-section holding portion into which a horizontal piece of a mold angle is inserted, and fixing means for fixing the L-shaped angle inserted into the holding portion with the horizontal piece to the holding frame; Since a scaffold plate support extending from the holding frame to at least one side of the cable rack in parallel with the horizontal piece is provided, the scaffold can be installed in the air using an L-shaped angle, and the cost of construction can be reduced. It is possible to obtain a temporary scaffolding material for racks, which can reduce the traffic, secure the passage of people and vehicles, and suppress obstacles to other works.

Further, the holding frame has a cylindrical holding portion having an insertion hole into which the scaffold plate support member is inserted, and a longitudinal direction of the U-shaped groove is parallel to the hole center of the insertion hole. Since the holding portion and the grip portion integrally formed on one side upper portion of the holding portion, the extending direction of the scaffold plate support member can be set arbitrarily,
The present invention can be applied irrespective of the case where the cable rack is extended near the wall or the orientation of the L-shaped angle.

Further, the holding frame is provided integrally with one side of the holding portion, and has a supporting arm for supporting a tip end of a vertical piece of the L-shaped angle having the horizontal piece inserted into the holding portion. Therefore, the rotation of the holding frame around the L-shaped angle is prevented, and the stability is improved.

Further, the holding frame is formed integrally with one side of the holding portion, and a receiving portion having a surface substantially perpendicular to the depth direction of the U-shaped groove of the holding portion is provided at the distal end thereof. A supporting arm for receiving the inner wall surface of the vertical piece of the L-shaped angle having the horizontal piece inserted into the holding portion at the receiving portion and supporting the L-shaped angle, the vertical piece of the L-shaped angle is provided. Of the holding frame is reliably prevented from rotating around the L-shaped angle, and the stability is further improved.

Further, since the receiving portion and the lower piece of the gripping portion are formed as an integral body having a substantially L-shaped outer diameter, the inner wall surfaces of the horizontal piece and the vertical piece of the L-shaped angle are received. Can be received extensively in the lower and lower pieces.

A slide rail extends in the length direction on the inner wall surface of the insertion hole of the holding portion, and a groove for engaging with the slide rail extends in the length direction on the outer wall surface of the scaffold plate support. As a result, the assemblability is improved.

The insertion hole of the holding portion is formed in a rectangular cross section, the slide rail is formed on each of four sides of the insertion hole, and the scaffold plate supporting member has an outer diameter substantially matching the inner diameter of the insertion hole. Since the grooves are formed on the four sides of the scaffold plate support member and are formed in the shape, and the scaffold plate support members inserted into the insertion holes are prevented from loosening.

The slide rails formed on the opposite sides are formed symmetrically with respect to the center of the insertion hole, and the grooves formed on the opposite sides are formed on the scaffold plate support member. Since it is formed symmetrically with respect to the axis, it can be inserted into the insertion hole even if the scaffold plate support member is turned by 180 degrees, and the assembling property is improved.

Further, the holding frame and the scaffold plate support are formed separately, and a slide rail is formed on one of the holding frame and the scaffold plate support over the entire area in the length direction. Since the groove to be fitted to the rail is formed on the other of the holding frame and the scaffold plate support over the entire area in the length direction, the assembling property is improved.

Further, since the holding frame and the scaffold plate supporting material are drawn materials, the yield is increased and the cost is reduced.

Further, since the fixing means is an eccentric cam rotatably mounted on the grip portion, the horizontal piece and the grip portion are fixed only by inserting the horizontal piece of the L-shaped angle into the grip portion. In addition, assemblability is improved.

The fixing means may include a mounting piece extending downward from the support arm and a first axis having one end side thereof parallel to the depth direction of the U-shaped groove of the grip portion. A first holding plate rotatably attached to the mounting piece, and one end side of the first holding plate is parallel to the depth direction of the U-shaped groove of the gripping portion on the mounting piece, and the lengthwise direction of the U-shaped groove is A second pressing plate rotatably mounted around a second axis separated from the first axis by a predetermined distance; and a second pressing plate rotatably mounted on the first and second pressing plates. A connecting plate that is attached and connects the first and second pressing plates; and a first piece and a second piece that are respectively drilled at positions corresponding to the first and second axes of the upper piece of the gripping part. First and second locking holes into which the other ends of the first and second holding plates are inserted when the holding plate rotates. Is secured to the other end of the first and second pressing plates, when said other end of the first and second pressing plate is inserted into said first and second locking holes,
Since there are provided first and second locking pieces for engaging the upper piece of the gripping portion and locking the first and second pressing plates, the first and second pressing plates are used to form the L-shape. The holding frame is prevented from coming off from the angle, and stable mounting of the holding frame to the L-shaped angle can be realized.

Further, the first and second holding plates are
When the other end is inserted into the first and second locking holes, the horizontal piece is configured to press the vertical piece of the L-shaped angle inserted into the holding portion toward the holding portion. Therefore, there is no play between the holding frame and the L-shaped angle, and more stable mounting of the holding frame can be realized.

Further, since the holding frame and the scaffold plate support are formed integrally, the number of parts can be reduced.

Further, since the holding portions having the U-shaped cross section are formed on both sides of the scaffold plate supporting member, the extending direction of the scaffold plate supporting member can be set arbitrarily.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a temporary scaffolding material for a rack according to Embodiment 1 of the present invention.

FIG. 2 is a side view showing a holding frame for the temporary scaffolding material for a rack according to Embodiment 1 of the present invention.

FIG. 3 is a main part side view showing a mounting state of the holding frame in the temporary scaffolding material for the rack according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view showing a mounted state of the temporary scaffold for rack according to Embodiment 1 of the present invention.

FIG. 5 is a perspective view for explaining a method of fixing a scaffold plate provided on the temporary rack scaffolding material according to Embodiment 1 of the present invention.

FIG. 6 is a side view showing a configuration of a temporary scaffolding material for a rack according to Embodiment 2 of the present invention.

FIG. 7 is a perspective view showing a temporary scaffolding material for a rack according to Embodiment 3 of the present invention.

FIG. 8 is a perspective view showing a temporary scaffolding material for a rack according to Embodiment 4 of the present invention.

FIG. 9 is a side view showing a holding frame applied to a temporary rack scaffold according to Embodiment 5 of the present invention.

FIG. 10 is a side view showing a holding frame applied to a temporary scaffolding material for a rack according to Embodiment 6 of the present invention.

FIG. 11 is a front view showing a holding frame applied to a temporary rack scaffold according to Embodiment 7 of the present invention.

FIG. 12 is a sectional view taken along arrow XII-XII in FIG. 11;

FIG. 13 is a side view showing a holding frame applied to a temporary rack scaffold according to Embodiment 8 of the present invention.

FIG. 14 is a side view showing a holding frame applied to a temporary rack scaffold according to Embodiment 9 of the present invention.

FIG. 15 is a side view showing a holding frame applied to a temporary scaffolding material for a rack according to Embodiment 10 of the present invention.

FIG. 16 is a top view showing a holding frame applied to a temporary scaffolding material for a rack according to Embodiment 10 of the present invention.

FIG. 17 is a perspective view showing a holding frame applied to a temporary scaffolding material for a rack according to Embodiment 10 of the present invention.

FIG. 18 is a front view illustrating an operation of mounting a holding frame applied to a temporary rack scaffold according to Embodiment 10 of the present invention to an L-shaped angle.

FIG. 19 is a perspective view showing an installed state of a cable rack.

FIG. 20 is a diagram illustrating a conventional cable laying operation.

FIG. 21 is a perspective view showing another installation state of the cable rack.

FIG. 22 is a perspective view showing still another installation state of the cable rack.

[Explanation of symbols]

1 Cable rack, 3 L-shaped angle, 3a horizontal piece, 3b vertical piece, 20, 20A, 20B, 20C, 5
0, 60 holding frame, 21, 61 holding part, 21a insertion hole, 21b, 21c, 21d, 21e, 51a slide rail, 22, 52 gripping part, 22a groove, 22b
Lower piece, 22c Upper piece, 23, 26, 26A, 53 Support arm, 24 Eccentric cam (fixing means), 26a Receiving part, 28
First mounting piece, 29 Second mounting piece, 30, 55, 6
3,65 scaffold plate support, 30a, 30b, 30c, 3
0d, 55a, 55b, 55c, 55d Groove, 66 Fixing screw (fixing means), 67 Fixing pin (fixing means), 6
8 support plate (support arm), 71 fixing piece (fixing means), 80
a extension end (first shaft), 81 first holding plate (fixing means), 81a first locking piece (fixing means), 82 second holding plate (fixing means), 82a second engaging member Stop piece (fixing means), 83 connecting plate (fixing means), 85 first locking hole (fixing means), 86 second locking hole (fixing means), 9
0 axis (second axis), 91, 92 axes, 100, 10
1, 102, 103 Temporary scaffolding materials for racks.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsumasa Tsukada 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Corporation (72) Inventor Tohru Kafuku 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Rishi Electric Co., Ltd.

Claims (15)

[Claims] 1. A rack temporary scaffolding material suspended at predetermined intervals and mounted on an L-shaped angle supporting a cable rack by horizontal pieces thereof, wherein the horizontal piece of the L-shaped angle is inserted therein. A holding frame having a holding portion having a U-shaped cross section; fixing means for fixing the L-shaped angle, in which the horizontal piece is inserted into the holding portion, to the holding frame; A temporary scaffolding material for a rack, comprising: a scaffold plate supporting material extending to at least one side of the cable rack. 2. The holding frame has a cylindrical holding portion having an insertion hole into which the scaffold plate support is inserted, and a U-shaped groove having a length direction parallel to a hole center of the insertion hole. The temporary scaffolding material for a rack according to claim 1, further comprising: the holding portion integrally formed on an upper portion of one side of the holding portion. 3. The holding frame is provided integrally with one side of the holding portion, and has a supporting arm for supporting a distal end portion of a vertical piece of the L-shaped angle having the horizontal piece inserted into the grip portion. The temporary scaffolding material for a rack according to claim 2, wherein: 4. The holding frame is integrally formed on one side of the holding portion, and a receiving portion having a surface substantially perpendicular to a depth direction of the U-shaped groove of the holding portion is provided at a distal end thereof. And a support arm for receiving the inner wall surface of the vertical piece of the L-shaped angle having the horizontal piece inserted into the holding portion at the receiving portion and supporting the L-shaped angle. Temporary scaffolding for racks as described. 5. The temporary scaffolding material for a rack according to claim 4, wherein the receiving portion and the lower piece of the grip portion are formed as an integral body having a substantially L-shaped outer diameter. 6. A slide rail extends longitudinally on an inner wall surface of the insertion hole of the holding portion, and a groove for engaging with the slide rail extends longitudinally on an outer wall surface of the scaffold support. The temporary scaffolding material for a rack according to claim 2, wherein the scaffolding material is provided. 7. The insertion hole of the holding portion is formed in a rectangular cross section, the slide rail is formed on each of four sides of the insertion hole, and the scaffold plate support member has an outer diameter substantially matching the inner diameter shape of the insertion hole. The temporary scaffolding material for a rack according to claim 6, wherein grooves formed in a shape and engaging with the slide rail are formed on four sides of the scaffolding plate support material, respectively. 8. The slide rails formed on opposing sides are formed symmetrically with respect to the hole center of the insertion hole, and the grooves formed on opposing sides are formed on the scaffold plate support member. The temporary scaffolding material for racks according to claim 7, wherein the temporary scaffolding material is formed symmetrically with respect to the axis. 9. The holding frame and the scaffold plate support are formed separately from each other, and a slide rail is formed on one of the holding frame and the scaffold plate support over the entire area in the length direction. The temporary scaffolding material for a rack according to claim 1, wherein a groove to be fitted to a rail is formed in the other of the holding frame and the scaffold plate supporting material over the entire area in the length direction. 10. The temporary scaffolding material for a rack according to claim 2, wherein the holding frame and the scaffolding plate supporting material are drawn materials. 11. The temporary scaffolding material for a rack according to claim 1, wherein said fixing means is an eccentric cam rotatably mounted on said grip portion. 12. The fixing means, comprising: a mounting piece extending downward from the support arm; and a first axis having one end side thereof parallel to a depth direction of the U-shaped groove of the grip portion. A first holding plate rotatably attached to the mounting piece, and one end side of the first holding plate is parallel to the depth direction of the U-shaped groove of the gripping portion on the mounting piece, and the lengthwise direction of the U-shaped groove is A second pressing plate rotatably mounted around a second axis separated from the first axis by a predetermined distance; and a second pressing plate rotatably mounted on the first and second pressing plates. A connecting plate that is attached and connects the first and second pressing plates; and a first piece and a second piece that are respectively drilled at positions corresponding to the first and second axes of the upper piece of the gripping part. First and second locking holes into which the other end sides of the first and second holding plates are inserted when the holding plate rotates. When the other ends of the first and second holding plates are fixed to the other ends of the first and second holding plates, and the other end sides of the first and second holding plates are inserted into the first and second locking holes,
The first and second locking pieces that engage with the upper piece of the grip portion to lock the first and second holding plates, respectively. The temporary scaffolding material for a rack according to any one of the above. 13. The L-shape wherein the horizontal piece is inserted into the holding portion when the other end side is inserted into the first and second locking holes. The temporary scaffolding material for a rack according to claim 12, wherein the vertical piece of the angle is configured to be pressed toward the holding portion. 14. The temporary scaffolding material for a rack according to claim 1, wherein said holding frame and said scaffolding plate support material are integrally formed. 15. The temporary scaffolding material for a rack according to claim 14, wherein the holding portions having the U-shaped cross section are formed on both sides of the scaffolding plate support material.