JP2001309518A - Temporary scaffolding member for cable extension - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary scaffolding member for cable extension capable of improving the working efficiency of a worker by adjusting the height of a scaffolding supporting member easily, thus eliminating extension work in a bending-down posture. SOLUTION: This scaffolding member includes a tubular body 31 which is fitted into an insertion hole 29 so as to be capable of being inserted and removed and which protrudes both ends to be inserted into the insertion hole 29, a height adjusting member 30 with a pair of hanging parts 32 which are hung down from both ends of the body 31 and are formed with insertion holes 35a at its lower end, and the scaffolding supporting member 40 inserted into the respective insertion holes 35a of the pair of hanging parts 32 so as to be extended roughly in parallel to an L-shaped angle 2 from the height adjusting member 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary scaffold for extending a cable used for temporarily laying a work scaffold next to a cable rack, for example, during cable laying work in plant construction.

[0002]

2. Description of the Related Art Conventionally, in a cable laying operation in a plant construction, a single pipe scaffold is assembled on a floor along a cable rack extended in the air, and a scaffold plate is erected between the assembled single pipe scaffolds. Was laid on a scaffold board, storing and arranging cables in a cable rack.
However, in the conventional cable laying work, a large number of scaffolds are required, and there is a problem that a large amount of labor is required for carrying in, assembling, disassembling, and removing the scaffolds, and the construction cost is increased. In addition, there is a problem that a hand tool such as a spanner is required for assembling and disassembling the single pipe scaffold, and the work is performed at a high place, thereby increasing a work load.
Furthermore, the space occupied by the single-pipe scaffolding installed on the floor is large and occupies for a long period of time. When the construction is carried out in parallel, there is a problem that the construction is delayed and the construction period is lengthened.

[0003] In view of such a conventional situation, the present applicant has made it possible to eliminate the need for a single pipe scaffold installed on the floor, eliminate the work by hand tools, and open the space under the cable rack. Proposes a temporary scaffolding material for cable extension (a temporary scaffolding material for cable extension) capable of assembling a scaffold in the air using an L-shaped angle for rack support suspended from the ceiling in Japanese Patent Application No. 11-310778. are doing.

FIG. 8 is an exploded perspective view showing a temporary scaffold for cable extension described in Japanese Patent Application No. 11-310778. In FIG. 8, the temporary scaffolding material 1 for cable extension is L
A holding frame 3 is attached to the mold angle 2, and a scaffold plate support member 4 extending from the holding frame 3 in parallel with the L-shaped angle 2 and supporting the scaffold plate. This temporary scaffolding material 1 for cable extension is made by drawing aluminum to reduce the weight. The holding frame 3 has an insertion hole 10a having a rectangular cross section for inserting the scaffold plate support 4.
And a holding portion 11 having a U-shaped cross section and integrally provided on one side of the holding portion 10 and having a groove 11 a for inserting the horizontal piece 2 a of the L-shaped angle 2.
The holding unit 10 and the holding unit 1 are provided below the holding unit 11.
1 and a supporting arm 12 for supporting the vertical piece 2b of the L-shaped angle 2 and a first arm extending downward from the tip of the supporting arm 12 and parallel to the longitudinal direction of the groove 11a.
From the mounting piece 13 and the base of the support arm 12 downward,
Further, a second mounting piece 14 extending in parallel with the first mounting piece 13 is provided.

An L-shaped operation handle 15 is provided with first and second attachment pieces 13 and 14 from the holding portion 10 side in grooves 11.
It is disposed so as to be rotatable through the depth direction a. Then, a short flat first holding plate 16 is fixed at one end thereof to the extension end 15 a of the operation handle 15 from the first mounting piece 13, and is mounted on the first mounting plate 13. I have. In addition, a short, flat, second holding plate 17 is provided.
The one end side is extended from the extension end 15a of the operation handle 15 to the groove 1
The first mounting piece 13 is rotatably mounted on a first mounting piece 13 at a predetermined distance in the length direction of the first mounting piece 13 around a shaft 18.
Further, a flat plate-like connecting plate 19 is provided on the shaft 2 having its both ends erected on the first and second pressing plates 16 and 17, respectively.
The first and second holding plates 16 and 17 are connected to each other so as to be rotatable around 0 and 21. By rotating the operation handle 15 in the direction of the arrow in FIG. 8, the first and second holding plates 16 and 17 are
It turns around 0 and 21 and rises to prevent the L-shaped angle 2 from coming off. In addition, the gripping portions 11 are arranged such that the locking holes 22 and 23 correspond to the extended end 15a and the shaft 18, respectively.
The first and second standing pieces pierced in the upper piece 11b
The other end sides of the holding plates 16 and 17 are inserted and locked.

Next, a cable laying operation using the thus constructed temporary scaffolding material 1 for cable extension will be described. A cable rack 5 for storing cables is manufactured by connecting the bottoms of a pair of parent girders 5a arranged in parallel with a child girder 5b, and a pair of hanging bolts 8 suspended from the ceiling at predetermined intervals. It is installed on the attached L-shaped angle 2. First, use a ladder, rolling tower, etc.
Temporary scaffolding 1 for cable extension to each L-shaped angle 2 along the extension path of cable rack 5 suspended from the ceiling
Perform mounting. That is, the horizontal piece 2a of the L-shaped angle 2 is inserted into the groove 11a of the grip portion 11, and the operation handle 15 is rotated to raise the first and second pressing plates 16, 17, and the first and second raised plates are raised. Second holding plate 16, 17
By inserting and locking the other end of the lock into the locking holes 22 and 23,
The holding frame 3 is mounted on the L-shaped angle 2. Then, the scaffold plate support member 4 is inserted into the insertion hole 10a of the holding portion 10, and a fixing screw (not shown) is tightened, so that the temporary scaffold member 1 for cable extension is attached to each L-shaped angle 2. You. At this time, the scaffold plate support 4 extends to one side of the cable rack 5 as shown in FIG. Next, the scaffold plate 6 is mounted on the adjacent scaffold plate support member 4, and the scaffold plate 6 is fixed to the scaffold plate support member 4 using a fixing bracket (not shown). Further, a handrail tube (not shown) is erected between the columns 7 erected on the scaffold plate support member 4 to assemble a temporary scaffold. Therefore, the operator gets on the scaffold plate 6, stores and arranges the cables in the cable rack 5, and lays the cables. Once the cable installation is completed, use a ladder, rolling tower, etc.
While moving from one end of the extension path of the cable rack 5 to the other end, the column 7, the handrail tube, the scaffold plate 6, the temporary scaffolding 1 for cable extension, and the like are sequentially removed, and the scaffold is disassembled and removed. .

[0007]

The temporary scaffolding 1 for cable extension proposed by the present applicant is constructed as described above, so that a single pipe scaffolding to be installed on the floor is not required, and a hand tool is required. , The space under the cable rack can be opened. However, since the temporary scaffolding material 1 for cable extension is attached to the L-shaped angle 2 supporting the cable rack 5, the scaffolding plate 6 erected on the scaffolding plate supporting material 4 is provided.
Becomes the same height position as the cable rack 5,
The worker must bend the body to perform the extension work, that is, the worker is forced to perform a cramped working posture, and there is a problem that the working efficiency is reduced. In order to solve this problem, as shown in FIG. 10, a suspension nut 8A is further connected to each suspension bolt 8 with a long nut 9, and the suspension bolt 8A
It is also conceivable to attach a dummy L-shaped angle 2A to the mounting position of the temporary scaffolding material 1 for cable extension. However, in this method, the dummy L-shaped angle 2A, the suspension bolt 8A, and the long nut 9 are required each time, and the operation of suspending the angle one more stage is required, which increases the cost and the operation time. A new problem arises. Furthermore, since the dummy L-shaped angles 2A are not connected by the cable rack 5,
Each of the dummy L-shaped angles 2A is easily shaken, and there is a problem in stability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to easily adjust the height position of a scaffolding plate support member, to eliminate the crimping work by bending over the body, It is an object of the present invention to obtain a temporary scaffold for cable extension which can improve the work efficiency of a worker.

[0009]

SUMMARY OF THE INVENTION A temporary scaffold for cable extension according to the present invention is used for a cable extension attached to an L-shaped angle which is hung at predetermined intervals and supported by a horizontal piece of the cable rack. A temporary scaffolding material, wherein the first insertion hole is formed in a cylindrical first holding portion, and the first direction is set such that a longitudinal direction of the groove is parallel to a hole center of the first insertion hole. A holding portion formed integrally with the first holding portion on the upper portion of the holding portion, and having a U-shaped cross section in which the horizontal piece of the L-shaped angle is inserted from one side of the first holding portion; The other side of the first holding portion is formed integrally with the first holding portion, and a second insertion hole is formed so that the center of the hole is parallel to the center of the first insertion hole. A holding frame having a cylindrical second holding portion, and the L-shaped angle inserted into the holding portion are fixed to the holding frame. Angle fixing means, a second scaffolding plate support member inserted through the second insertion hole so as to extend from the second holding portion substantially parallel to the L-shaped angle, and the first insertion portion A cylindrical main body that is removably mounted in the hole and that is inserted through the first insertion hole with both ends protruding therefrom; and an insertion hole that is suspended downward from both ends of the main body and has a lower end provided with an insertion hole. A height adjusting member having a pair of hanging portions, and a first inserted through each of the insertion holes of the pair of hanging portions so as to extend from the height adjusting member substantially in parallel with the L-shaped angle. And a scaffold plate support.

The main body has cutouts provided at lower sides of both ends thereof, and holes are formed so as to face both sides of the both ends. The hanging part has a bearing part. It is provided at the upper end, the hanging portion,
The bearing portion inserted into the main body portion is mounted on the main body portion by being axially mounted by a shaft portion inserted through the hole.

The hole is formed in a long hole whose longitudinal direction is the length direction of the main body.

Further, the hanging portion is configured to be extendable and contractible.

[0013]

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 illustrating a configuration of a temporary scaffolding material for cable extension according to Embodiment 1 of the present invention,
FIG. 2 is an exploded perspective view showing a configuration of a height adjusting member of the temporary scaffold for cable extension according to the first embodiment of the present invention, and FIGS. 3 and 4 respectively relate to the first embodiment of the present invention. FIG. 5 is a perspective view illustrating the operation of the height adjusting member of the temporary scaffold for cable extension. FIG. 5 is a front view illustrating the operation of the height adjusting member of the temporary scaffold for cable extension according to Embodiment 1 of the present invention. Drawing 6 and Drawing 6 are perspective views showing the attachment state of the temporary scaffolding material for cable extension concerning Embodiment 1 of this invention.

In FIG. 1, a temporary scaffolding material 100 for cable extension is provided with a holding frame 3 attached to an L-shaped angle 2.
A scaffold plate support member 4 extending from the holding frame 3 in parallel with the L-shaped angle 2 and supporting the scaffold plate; and a scaffold plate support member 4 attached to the holding frame 3 and supporting the scaffold plate. Height adjusting member 30 for adjusting the height, and L
First supporting the scaffold plate extending parallel to the mold angle 2
And a scaffold plate support member 40 as a scaffold plate support member. The temporary scaffolding material 100 for cable extension is made by drawing aluminum to reduce the weight.

The holding frame 3 includes a cylindrical holding portion (second holding portion) 10 provided with an insertion hole (second insertion hole) 10a having a rectangular cross section for inserting the scaffold plate support member 4; A holding portion 11 integrally provided on one side of the holding portion 10 and having a U-shaped cross section having a groove 11 a for inserting the horizontal piece 2 a of the L-shaped angle 2, and a holding portion 10 below the holding portion 11. And a support arm 12 provided integrally with the grip portion 11 and supporting the vertical piece 2b of the L-shaped angle 2, extending downward from the tip of the support arm 12 and parallel to the longitudinal direction of the groove 11a. A first mounting piece 13 and a second mounting piece 13 extending downward from the root of the support arm 12 and parallel to the first mounting piece 13.
Mounting piece 14. Here, a cylindrical holding portion (first holding portion) is configured by the wall portion on one side of the holding portion 10, the lower piece of the grip portion 11, and the support arm 12, and the insertion hole (first insertion hole) thereof. 29 is formed so that the hole center is parallel to the hole center of the insertion hole 10a.

An L-shaped operating handle 15 is provided with the first and second mounting pieces 13 and 14 from the holding portion 10 side in the grooves 11.
It is disposed so as to be rotatable through the depth direction a. Then, a short flat first holding plate 16 is fixed at one end thereof to the extension end 15 a of the operation handle 15 from the first mounting piece 13, and is mounted on the first mounting plate 13. I have. In addition, a short, flat, second holding plate 17 is provided.
The one end side is extended from the extension end 15a of the operation handle 15 to the groove 1
The first mounting piece 13 is rotatably mounted on a first mounting piece 13 at a predetermined distance in the length direction of the first mounting piece 13 around a shaft 18.
Further, a flat plate-like connecting plate 19 is provided on the shaft 2 having its both ends erected on the first and second pressing plates 16 and 17, respectively.
The first and second holding plates 16 and 17 are connected to each other so as to be rotatable around 0 and 21. By rotating the operation handle 15 in the direction of the arrow in FIG. 1, the first and second holding plates 16 and 17 are
It turns around 0 and 21 and rises to prevent the L-shaped angle 2 from coming off. In addition, the gripping portions 11 are arranged such that the locking holes 22 and 23 correspond to the extended end 15a and the shaft 18, respectively.
The first and second standing pieces pierced in the upper piece 11b
The other end sides of the holding plates 16 and 17 are inserted and locked. Thus, the angle fixing means is configured.

The scaffold plate support member 4 is formed into a hollow rectangular rod having a rectangular outer diameter substantially matching the inner diameter of the insertion hole 10a of the holding portion 10 by drawing aluminum.

The height adjusting member 30 is formed into a cylindrical body having a rectangular outer diameter substantially corresponding to the inner diameter of the insertion hole 29 by drawing aluminum, and the ta main body 31 and the main body 31 are formed.
And a pair of hanging portions 32 attached to both end portions of the hologram. The main body 31 is formed to have a length such that both ends extend from the insertion hole 29 when the main body 31 is inserted into the insertion hole 29. The notch 31a is provided on the lower side of both ends of the main body 31, and the elongated hole 31b is formed so as to face both sides on both ends of the main body 31. Note that each of the long holes 31b has the longitudinal direction as the longitudinal direction of the main body 31. The hanging part 32 is composed of a long rectangular pipe 33, a bearing part 34 fixed to the upper end of the square pipe 33 by welding, and a receiving part 34 fixed to the lower end of the square pipe 33 by welding. . A hole 34a is formed in the bearing portion 34, and an insertion hole 35a and a pin hole 35b are formed in the receiving portion 35.

As shown in FIG. 2, the suspension portion 32 is formed so that the bearing portion 34 extends from the cutout portion 31a to the main body portion 3a.
1, the shaft 36 is inserted from one side of the main body 31 into the elongated hole 31 b, the hole 34 a of the bearing 34, and the other elongated hole 31.
b, and a set screw 37 is screwed from the other side of the main body 31 into a screw hole 36 a of the shaft 36 and attached to the main body 31. As described above, the suspension portion 32 includes the bearing portion 3.
4 is mounted on the main body 31 so as to be rotatable about the shaft 36 by being mounted on the shaft 36.

The scaffold plate support member 40 is provided with the insertion hole 3 of the receiving portion 35.
It is made of a square pipe having an outer diameter shape substantially matching the inner diameter shape of 5a, and a receiving portion 40a for erecting the support 7A is provided at one end. Further, a plurality of through holes 40b are formed in the length direction of the square pipe. Then, the scaffold plate support member 40 is inserted into the insertion hole 35a of the pair of suspension portions 32, and the pin 38 is inserted into the pin hole 35b and the through hole 40b.
The pin 38 is prevented from falling off by a retaining spring 38 a provided at the tip of the pin 38. At this time, the through hole 4
0b are drilled in the length direction of the square pipe,
The extension length of the scaffold plate support member 40 can be adjusted.

The operation of the height adjusting member 30 will now be described with reference to FIGS. First, the suspension portion 32 is rotated around the shaft portion 36 (the shaft portion set screw 37) so as to be aligned with the main body portion 31 and then pushed into the main body portion 31 so that the shaft portion 36 is inserted into the elongated hole 31b. The leading end of the hanging portion 32 is guided and inserted into the main body 31. Thereby, as shown in FIG. 3, the suspension portion 32 is received by the lower surface end of the main body portion 31 and is maintained in a substantially straight posture with the main body portion 31. Then, by pulling out the hanging part 32 from the main body part 31, the shaft part 36 is guided by the long hole 31b and moves to the end of the long hole 31b. Therefore, when the holding of the hanging portion 32 is released, the hanging portion 32 rotates around the shaft portion 36 by its own weight, and hangs down from the end of the main body portion 31 as shown in FIG. At this time, the hanging part 3
The upper end side of 2 is located in the notch 31a. The overall operation of the suspension unit 32 is shown in FIG.

Next, a cable laying operation using the temporary scaffolding material 100 for cable extension constructed as described above will be described with reference to FIG. A cable rack 5 for storing cables is manufactured by connecting the bottoms of a pair of parent girders 5a arranged in parallel with a child girder 5b, and a pair of hanging bolts 8 suspended from the ceiling at predetermined intervals. It is installed on the attached L-shaped angle 2. First, using a ladder, a rolling tower, or the like, the temporary scaffolding material 100 for cable extension is mounted on each L-shaped angle 2 along the extension path of the cable rack 5 suspended from the ceiling. That is, the horizontal piece 2a of the L-shaped angle 2 is inserted into the groove 11a of the grip portion 11, and the operation handle 15 is rotated to raise the first and second pressing plates 16, 17, and to raise the first and second raised plates. The other end sides of the second holding plates 16, 17 are engaged with the locking holes 22, 23.
The holding frame 3 is attached to the L-shaped angle 2 by inserting and locking the holding frame 3.

Next, as shown in FIG. 3, one of the hanging portions 32 is substantially aligned with the main body portion 31, and the other of the hanging portions 32 is inserted into the insertion hole 29 of the holding portion 3.
Then, after one suspending portion 32 completely extends from the insertion hole 29, the suspending portion 32 is suspended as shown in FIG. As a result, the main body 31 is housed in the insertion hole 29 with both ends extending, and the pair of hanging portions 32 hang down from the ends of the main body 31 on both sides of the insertion hole 29, and the height adjustment member 30 is moved. It is attached. Therefore, the scaffold plate support member 40
Are inserted into the insertion holes 35a of the receiving portions 35 of the pair of hanging portions 32. Then, the pins 38 are inserted into the pin holes 35b and the through holes 40b, and the rack extending wire temporary scaffolding material 100 is inserted.
Is attached to each L-shaped angle 2. At this time, the scaffold plate support member 40 extends to one side of the cable rack 5 as shown in FIG.

Next, the scaffolding plate 6 is erected on the adjacent scaffolding plate support member 40, and the scaffolding plate 6 is fixed using a fixing bracket (not shown).
Is fixed to the scaffold plate support member 40. In addition, a handrail tube (not shown) is mounted on a scaffolding plate support member 40 by a support 7A.
A temporary scaffold is set up between them. Therefore, the operator gets on the scaffold plate 6 and connects the cables to the cable rack 5.
It is stored and lined up inside and laid. At this time, if the cable racks 5 are arranged in a plurality of stages, after the cables are laid in the lower cable racks 5, the scaffold plate support 4 is inserted into the holding portion 10 while moving on the erection scaffold. Hole 10a
And tighten the fixing screw (not shown). And
The scaffolding plate 6 is mounted on the adjacent scaffolding plate support 4, and the scaffolding plate 6 is fixed to the scaffolding plate support 4 using a fixing bracket (not shown). Further, a handrail tube (not shown) is erected between the columns 7 erected on the scaffolding plate support 4 and, like FIG.
Temporary scaffolds are built. Thereafter, the cables are stored and arranged in the upper cable rack 5 and laid. When the cable laying is completed in this manner, the ladders, rolling towers, and the like are used to move the cable rack 5 from one end to the other end of the extension path, while supporting the columns 7, 7A, and handrails. The pipe material, the scaffold plate 6, the temporary scaffolding material 100 for cable extension and the like are sequentially removed, and the scaffold is dismantled and removed.

As described above, according to the first embodiment,
Since the mounting position of the scaffold plate support member 40 can be adjusted to a position lower than the L-shaped angle 2 by using the height adjusting member 30, the worker does not bend down and perform the extension work, that is, the worker is cramped. A work posture is not required, and work efficiency can be improved. The height adjustment member 30 is inserted into the insertion hole 29.
And the scaffold plate support member 4 is inserted into the insertion hole 10a, so that the erection position of the scaffold plate 6 can be adjusted in two stages, and even if the cable rack 5 is installed in multiple stages, It does not force the worker to take a cramped working posture. In addition, it is not necessary to suspend another angle every time the installation position of the scaffold plate 6 is adjusted, so that the working time can be reduced. Also, there is no need for the components of the dummy L-shaped angle 2A, the suspension bolts 8A, and the long nuts 9, so that the cost can be reduced. Further, since the dummy L-shaped angle 2A becomes unnecessary, the swing of the erected scaffold plate 6 is suppressed, and the stability is improved.

The main body 31 has cutouts 31a provided on the lower sides of both ends thereof, and long holes 31b are formed so as to be opposed to both sides of both ends thereof. A bearing portion 34 is provided at its upper end,
The hanging part 32 is a part of the bearing 3 inserted into the main body 31.
4 is attached to the main body 31 by being mounted on the main body 31 by the shaft 36 inserted into the elongated hole 31b.
2 can be rotated around the shaft portion 36 to be inserted into the insertion hole 29 in a posture substantially in line with the main body portion 31, and the hanging portion 32 rotates around the shaft portion 36 by its own weight and
Can be taken from both ends, and the mountability of the height adjusting member 30 is improved.

Further, since the elongated hole 31b is formed with the longitudinal direction of the main body portion 31 as the longitudinal direction, the hanging portion 3
By rotating the shaft 2 around the shaft portion 36 to make it substantially aligned with the main body portion 31 and then pushing it into the main body portion 31, the hanging portion 32 can be maintained in a posture almost in line with the main body portion 31, and the mounting property is improved. Further improved.

Embodiment 2 In the first embodiment, the hanging portion 32 is formed by one square pipe 33. However, in the second embodiment, as shown in FIG. The inner and outer square pipes 33A and 33B are configured to be extendable and contractible. According to the second embodiment, the inner angle pipe 33B is extended from the outer angle pipe 33A by a predetermined length,
The pin 39 is inserted into the hole 33a to prevent the pin 39 from coming off. Therefore, the height position of the scaffold plate support member 40 can be adjusted in multiple stages according to the number of installation stages of the cable rack 5, and the work efficiency of the operator can be further improved.

[0029]

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 for cable extension which is hung at a predetermined gap and is attached to an L-shaped angle supporting a cable rack by horizontal pieces thereof,
A first holding portion having a cylindrical shape in which a first insertion hole is bored, and an upper portion of the first holding portion having the length direction of the groove parallel to a center of the first insertion hole; A grip portion formed integrally with the first holding portion and having a U-shaped cross section into which the horizontal piece of the L-shaped angle is inserted from one side of the first holding portion; A cylindrical second holding member formed integrally with the first holding portion on the other side and having a second insertion hole formed so that the center of the hole is parallel to the center of the first insertion hole. Holding frame having a portion, and the L inserted into the grip portion
Angle fixing means for fixing a mold angle to the holding frame; and a second scaffold plate support inserted through the second insertion hole so as to extend from the second holding portion substantially in parallel with the L-shaped angle. Material, a cylindrical main body that is removably attached to the first insertion hole, and that is inserted into the first insertion hole with both ends protruding therethrough; A height adjusting member having a pair of hanging portions provided with insertion holes at lower ends thereof, and each of the pair of hanging portions being inserted from the height adjusting member so as to extend substantially parallel to the L-shaped angle. Since it is provided with the first scaffold plate support inserted into the hole, the height position of the scaffold plate support can be easily adjusted, eliminating the work of bending over the body and reducing the work efficiency of the worker. A temporary scaffold for cable extension that can be improved can be obtained.

The main body has cutouts provided at the lower sides of both ends thereof, and holes are formed so as to face both sides of the both ends. The hanging part has a bearing part. It is provided at the upper end, the hanging portion,
Since the bearing portion inserted into the main body portion is attached to the main body portion by being attached to the main body portion by the shaft portion inserted through the hole, the hanging portion is rotated around the main shaft portion and substantially the same as the main body portion. In addition to being able to be inserted into the first insertion hole as a straight posture, the hanging part can be rotated around the shaft part by its own weight and hang down from both ends of the main body part. Is improved.

Further, since the hole is formed as an elongated hole whose longitudinal direction is the longitudinal direction of the main body, the hanging portion is rotated around the shaft to be substantially aligned with the main body. By being pushed into the main body, the hanging portion can be maintained in a substantially straight posture with the main body portion, and the mountability is further improved.

Further, since the hanging portion is configured to be extendable and contractible, the height position of the scaffolding plate support member can be adjusted in multiple stages in accordance with the number of installation stages of the cable rack, and the work efficiency of the operator can be further improved. .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view illustrating a configuration of a temporary scaffolding material for cable extension according to Embodiment 1 of the present invention.

FIG. 2 is an essential part exploded perspective view showing a configuration of a height adjusting member in the temporary scaffolding material for cable extension according to Embodiment 1 of the present invention.

FIG. 3 is a perspective view illustrating an operation of a height adjusting member in the temporary scaffolding for cable extension according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view illustrating an operation of a height adjusting member in the temporary scaffolding material for cable extension according to Embodiment 1 of the present invention.

FIG. 5 is a front view illustrating an operation of a height adjusting member in the temporary scaffolding material for cable extension according to Embodiment 1 of the present invention.

FIG. 6 is a perspective view showing an attached state of a temporary scaffolding material for cable extension according to Embodiment 1 of the present invention.

FIG. 7 is a perspective view showing a hanging portion of a height adjusting member in a temporary scaffold for cable extension according to Embodiment 2 of the present invention.

FIG. 8 is an exploded perspective view illustrating a configuration of a conventional temporary scaffold for cable extension.

FIG. 9 is a perspective view showing an attached state of the temporary scaffolding for cable extension shown in FIG. 8;

FIG. 10 is a perspective view showing another attachment state of the temporary scaffolding material for cable extension shown in FIG. 8;

[Explanation of symbols]

2 L-shaped angle, 2a horizontal piece, 3 holding frame, 4 scaffolding board support (second scaffolding board support), 5 cable rack, 10 holding section (second holding section), 10a insertion hole (second Insertion hole), 11 gripping portion, 12 support arm (first holding portion), 29 insertion hole (first insertion hole), 30 height adjusting member, 31 main body portion, 31a cutout portion, 31b elongated hole, 32 , 32A Hanging part, 34 Bearing part, 35a
Insertion holes, 36 shafts, 40 scaffolding board support (second scaffolding board support), 100 temporary scaffolding for cable extension.

Claims (4)

[Claims] 1. A temporary scaffolding material for cable extension which is hung at predetermined intervals and is attached to an L-shaped angle supporting a cable rack by horizontal pieces thereof, wherein a first insertion hole is drilled. The first cylindrical holding portion is formed integrally with the first holding portion above the first holding portion such that the length direction of the groove is parallel to the hole center of the first insertion hole. A grip having a U-shaped cross section into which a horizontal piece of the L-shaped angle is inserted from one side of the first holding portion; and a first holding portion on the other side of the first holding portion. A holding frame having a cylindrical second holding portion formed integrally with the second insertion hole so that the center of the hole is parallel to the center of the first insertion hole; An angle fixing means for fixing the L-shaped angle inserted into the holding frame to the holding frame; and A second scaffold plate support member inserted into the second insertion hole so as to extend substantially in parallel with the angle, and a detachably attached to the first insertion hole; A height adjusting member having a cylindrical main body portion that is inserted with both ends protruding therethrough, and a pair of hanging portions that are suspended downward from both ends of the main body portion and provided with an insertion hole at a lower end; A first scaffold plate support member inserted through each of the insertion holes of the pair of suspension portions so as to extend from the adjustment member in a direction substantially parallel to the L-shaped angle. For temporary scaffolding materials. 2. The main body portion has a cutout portion provided at each lower side of both ends thereof, and a hole is formed so as to face both sides of the both end portions. The hanging portion has a bearing portion. It is provided at the upper end, wherein the hanging portion is attached to the main body portion, wherein the bearing portion inserted into the main body portion is axially mounted by a shaft portion inserted through the hole. The temporary scaffolding material for cable extension according to claim 1. 3. The temporary scaffolding for cable extension according to claim 2, wherein the hole is formed as an elongated hole whose longitudinal direction is the length direction of the main body. 4. The temporary scaffolding for cable extension according to claim 1, wherein the suspension portion is configured to be extendable and contractible.