JP4236071B2 - Temporary scaffolding for cable extension - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary scaffolding member for cable extension, which is used, for example, when a work scaffold is temporarily installed beside a cable rack during cable laying work in plant construction.
[0002]
[Prior art]
Conventionally, in cable laying work in plant construction, a single pipe scaffolding is assembled on the floor along a cable rack extending in the air, and after the scaffolding board is erected between the assembled single pipe scaffolding, the worker attaches to the scaffolding board. I got on the cable rack and stored the cable in the cable rack.
However, in the conventional cable laying work, a large number of scaffolding materials are required, and there is a problem that a great deal of labor is required for carrying in, assembling, dismantling and removing the scaffolding materials, and the construction cost increases. Further, there is a problem that a hand tool such as a spanner is required for assembling and dismantling the single pipe scaffold, and work is performed at a high place, resulting in an increase in work load. Furthermore, the space occupied by the single pipe scaffolding installed on the floor is wide and will occupy for a long period of time, impeding the passage of people and vehicles, and for machine piping work under the cable rack, etc. In the case where construction is performed concurrently, there was a problem that the construction was delayed and the construction period was prolonged.
[0003]
In view of such a conventional situation, the present applicant eliminates the need for a single pipe scaffold installed on the floor, eliminates the need for manual tools, and further frees the space under the cable rack from the ceiling. Japanese Patent Application No. 11-310778 proposes a cable-drawing temporary scaffolding material (temporary scaffolding material for cable-drawing wire) that can be assembled in the air by using an L-shaped angle for supporting a suspended rack. .
[0004]
FIG. 8 is an exploded perspective view showing a temporary scaffold material for cable extension described in Japanese Patent Application No. 11-310778.
In FIG. 8, a temporary extension material 1 for cable extension includes a holding frame 3 attached to an L-shaped angle 2 and a scaffolding plate support that extends in parallel with the L-shaped angle 2 from the holding frame 3 and supports the scaffolding plate. The material 4 is comprised. The cable-drawing temporary scaffold 1 is manufactured by drawing aluminum to reduce the weight.
The holding frame 3 is provided integrally with a hollow holding portion 10 provided with an insertion hole 10a having a rectangular cross section for inserting the scaffolding plate support material 4 and one side of the holding portion 10. A holding part 11 having a U-shaped cross section having a groove 11a for inserting a horizontal piece 2a, and a holding piece 10 and a holding part 11 provided integrally with a lower part of the holding part 11, and a vertical piece 2b of an L-shaped angle 2 Supporting arm 12, a first attachment piece 13 extending downward from the tip of the supporting arm 12 and parallel to the length direction of the groove 11 a, and downward from the base of the supporting arm 12 And a second mounting piece 14 extending in parallel with the first mounting piece 13.
[0005]
Further, an L-shaped operation handle 15 is rotatably disposed through the first and second attachment pieces 13 and 14 in the depth direction of the groove 11a from the holding portion 10 side. Then, a short flat plate-like first pressing plate 16 is attached to the first mounting plate 13 by fixing one end side thereof to the extending end 15a of the operation handle 15 from the first mounting piece 13. Yes. Further, a short flat plate-like second pressing plate 17 is erected on the first mounting piece 13 with one end thereof being separated from the extending end 15a of the operation handle 15 by a predetermined distance in the length direction of the groove 11a. The shaft 18 is rotatably attached around the shaft 18. Further, a flat connecting plate 19 is attached to both ends thereof so as to be rotatable around shafts 20 and 21 erected on the first and second pressing plates 16 and 17, respectively. The holding plates 16 and 17 are connected. Thus, by rotating the operation handle 15 in the direction of the arrow in FIG. 8, the first and second pressing plates 16, 17 are turned up around the shafts 20, 21, and the L-shaped angle 2 is removed. Is preventing.
In addition, the locking holes 22 and 23 are formed in the upper piece 11b of the gripping portion 11 so as to correspond to the extended end 15a and the shaft 18, respectively, and the first and second pressing plates 16 and 17 rising up. The end side is inserted and locked.
[0006]
Next, a cable laying operation using the cable-drawing temporary scaffold 1 configured as described above will be described.
The cable rack 5 for storing cables is produced by connecting the bottoms of a pair of main beams 5a arranged in parallel with a child beam 5b, and is attached to a suspension bolt 8 suspended in pairs at predetermined intervals from the ceiling. It is installed on the mounted L-shaped angle 2.
First, using a ladder, a rolling tower, or the like, the temporary scaffolding material 1 for cable extension is attached to 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 gripping part 11, the operation handle 15 is rotated to raise the first and second pressing plates 16, 17, and the first and second raised The holding frame 3 is attached to the L-shaped angle 2 by inserting and locking the other end sides of the second pressing plates 16 and 17 into the locking holes 22 and 23. Next, the scaffolding plate support member 4 is inserted into the insertion hole 10a of the holding portion 10 and a fixing screw (not shown) is fastened, so that the temporary scaffolding member 1 for cable extension is attached to each L-shaped angle 2. The At this time, the scaffolding plate support 4 extends to one side of the cable rack 5 as shown in FIG.
Next, the scaffolding plate 6 is installed on the adjacent scaffolding plate support member 4, and the scaffolding plate 6 is fixed to the scaffolding plate support member 4 using a fixing bracket (not shown). Further, a temporary scaffolding is assembled by constructing a handrail tube (not shown) between the columns 7 that are erected on the scaffolding support 4.
Then, an operator gets on the scaffold board 6, accommodates and arranges a cable in the cable rack 5, and lays it.
When the installation of the cable is completed, it is possible to use a ladder, a rolling tower or the like to move from one end side to the other end side of the extension path of the cable rack 5, while supporting the column 7, the handrail tube, the scaffold board 6, and the cable. Remove temporary scaffolding material 1 etc. for wire drawing, dismantle and remove the scaffold.
[0007]
[Problems to be solved by the invention]
Since the temporary scaffolding material 1 for cable extension previously proposed by the present applicant is configured as described above, it eliminates the need for a single-tube scaffolding that is installed on the floor, eliminates the use of hand tools, and further provides a cable rack. The effect that the lower space can be opened is obtained.
However, since the temporary extension material 1 for cable extension is attached to the L-shaped angle 2 that supports the cable rack 5, the scaffold plate 6 installed on the scaffold plate support 4 has a height position equivalent to that of the cable rack 5. As a result, the worker becomes a wire bending operation by bending his body, that is, the operator is forced to take a tight working posture, and there is a problem that the working efficiency is lowered.
In order to solve this problem, as shown in FIG. 10, a suspension bolt 8A is further connected to each suspension bolt 8 with a long nut 9, and a dummy L-shaped angle 2A is attached to the suspension bolt 8A for cable extension. It is also conceivable to lower the mounting position of the temporary scaffold 1. However, this method requires the dummy L-shaped angle 2A, the suspension bolt 8A, and the long nut 9 each time, and requires the work of suspending the angle one more stage, which increases cost and operation time. A new problem will occur. Furthermore, since the dummy L-shaped angles 2A are not connected by the cable rack 5, the individual dummy L-shaped angles 2A are easily shaken, which causes a problem in terms of stability.
[0008]
The present invention has been made to solve the above-described problems, and can easily adjust the height position of the scaffold plate support member, eliminates the work of bending the body by bending the body, It aims at obtaining the temporary scaffold material for cable extension which can improve efficiency.
[0009]
[Means for Solving the Problems]
A temporary extension material for cable extension according to the present invention is a temporary extension material for cable extension attached to an L-shaped angle that is suspended at predetermined intervals and supports a cable rack by a horizontal piece thereof. A cylindrical first holding portion in which the insertion hole is formed, and the first holding portion is disposed above the first holding portion so that the length direction of the groove is parallel to the hole center of the first insertion hole. And a holding portion 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, and the other side of the first holding portion A cylindrical second holding portion formed integrally with the first holding portion and having a second insertion hole formed so that the hole center is parallel to the hole center of the first insertion hole. A holding frame, an angle fixing means for fixing the L-shaped angle inserted into the holding portion to the holding frame, and an upper A second scaffolding plate support member inserted into the second insertion hole so as to extend substantially parallel to the L-shaped angle from the second holding part, and a removably attached to the first insertion hole A cylindrical main body portion that is inserted through the first insertion hole with both ends projecting, 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 the lower end. And a first scaffolding plate support member that is inserted through the insertion holes of the pair of suspension portions so as to extend substantially parallel to the L-shaped angle from the height adjustment member. It is a thing.
[0010]
In addition, the main body is provided with notches at the lower sides of both ends, and holes are drilled so as to face both sides of the both ends. The suspension part is provided so that the bearing part inserted into the main body part is attached to the main body part by being axially attached by a shaft part inserted into the hole.
[0011]
Moreover, the said hole is formed in the long hole which makes the length direction of the said main-body part a longitudinal direction.
[0012]
Moreover, the said suspension part is comprised so that expansion-contraction is possible.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is an exploded perspective view for explaining the configuration of a temporary cable scaffolding scaffold according to Embodiment 1 of the present invention, and FIG. 2 shows the height of the cable scaffolding temporary scaffold according to Embodiment 1 of the present invention. FIG. 3 is a perspective view for explaining the operation of the height adjusting member in the temporary cable scaffold for cable extension according to the first embodiment of the present invention. FIG. FIG. 6 is a front view for explaining the operation of the height adjusting member in the cable-drawing temporary scaffolding according to Embodiment 1 of the present invention, and FIG. 6 is a diagram of the cable-drawing temporary scaffolding according to Embodiment 1 of the present invention It is a perspective view which shows an attachment state.
[0014]
In FIG. 1, a temporary extension material 100 for cable extension includes a holding frame 3 attached to the L-shaped angle 2, and a second frame that extends in parallel with the L-shaped angle 2 from the holding frame 3 and supports the scaffold plate. Scaffolding plate support material 4 as a scaffolding plate support material, a height adjusting member 30 attached to the holding frame 3 to adjust the height of the scaffolding plate, and extending from the height adjusting member 30 in parallel with the L-shaped angle 2 It is comprised from the scaffold board | substrate support material 40 as a 1st scaffold board | plate support material by which it is carried out and supports a scaffold board | plate. The cable-drawing temporary scaffolding material 100 is manufactured by drawing aluminum to reduce the weight.
[0015]
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 material 4, and the holding portion. 10 and a grip part 11 having a U-shaped cross section having a groove 11a for inserting the horizontal piece 2a of the L-shaped angle 2, and a holding part 10 and a grip part at the lower part of the grip part 11. 11, a support arm 12 that supports the vertical piece 2b of the L-shaped angle 2, and a first extending downward from the tip of the support arm 12 and parallel to the length direction of the groove 11a. And a second mounting piece 14 extending downward from the base of the support arm 12 and parallel to the first mounting piece 13.
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 gripping portion 11, and the support arm 12, and an insertion hole (first insertion hole) thereof. 29 is formed with the hole center parallel to the hole center of the insertion hole 10a.
[0016]
Further, an L-shaped operation handle 15 is rotatably disposed through the first and second attachment pieces 13 and 14 in the depth direction of the groove 11a from the holding portion 10 side. Then, a short flat plate-like first pressing plate 16 is attached to the first mounting plate 13 by fixing one end side thereof to the extending end 15a of the operation handle 15 from the first mounting piece 13. Yes. Further, a short flat plate-like second pressing plate 17 is erected on the first mounting piece 13 with one end thereof being separated from the extending end 15a of the operation handle 15 by a predetermined distance in the length direction of the groove 11a. The shaft 18 is rotatably attached around the shaft 18. Further, a flat connecting plate 19 is attached to both ends thereof so as to be rotatable around shafts 20 and 21 erected on the first and second pressing plates 16 and 17, respectively. The holding plates 16 and 17 are connected. Thereby, by rotating the operation handle 15 in the direction of the arrow in FIG. 1, the first and second pressing plates 16, 17 are turned up around the shafts 20, 21, and the L-shaped angle 2 is removed. Is preventing. In addition, the locking holes 22 and 23 are formed in the upper piece 11b of the gripping portion 11 so as to correspond to the extended end 15a and the shaft 18, respectively, and the first and second pressing plates 16 and 17 rising up. The end side is inserted and locked. Thereby, an angle fixing means is constituted.
[0017]
The scaffolding plate support member 4 is formed into a hollow rectangular bar having a rectangular outer diameter that substantially matches the inner diameter of the insertion hole 10a of the holding portion 10 by drawing aluminum.
[0018]
The height adjusting member 30 is formed into a cylindrical body having a rectangular outer diameter substantially matching the inner diameter shape of the insertion hole 29 by drawing aluminum, and a pair of ta main body 31 and a pair attached to both ends of the main body 31. The hanging part 32 is configured.
The main body 31 is formed in such a length that both end portions extend from the insertion hole 29 when inserted into the insertion hole 29. The notch portion 31 a is provided at the lower side of both ends of the main body portion 31, and the long holes 31 b are drilled so as to face both side sides of the main body portion 31 on both ends. In addition, each long hole 31b makes the length direction of the main-body part 31 the longitudinal direction.
The hanging part 32 includes a long square 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. . The bearing portion 34 has a hole 34a, and the receiving portion 35 has an insertion hole 35a and a pin hole 35b.
[0019]
As shown in FIG. 2, the suspension portion 32 has a bearing portion 34 inserted into the main body portion 31 from the cutout portion 31 a, and the shaft portion 36 extending from one side of the main body portion 31 to the long hole 31 b, the bearing portion. A set screw 37 is screwed into the screw hole 36 a of the shaft portion 36 from the other side of the main body portion 31 and attached to the main body portion 31. Thus, the suspension part 32 is mounted on the main body part 31 so that the bearing part 34 is pivotally attached to the shaft part 36 and is rotatable around the shaft part 36.
[0020]
The scaffolding plate support member 40 is made of a square pipe having an outer diameter substantially matching the inner diameter shape of the insertion hole 35a of the receiving portion 35, and a receiving portion 40a for standing the support column 7A is provided at one end. Yes. Furthermore, a plurality of through holes 40b are formed in the length direction of the square pipe. The scaffold board support member 40 is inserted into the insertion holes 35a of the pair of hanging portions 32, the pin 38 is passed through the pin hole 35b and the through hole 40b, and a retaining spring provided at the tip of the pin 38. The disconnection is prevented by 38a. At this time, since a plurality of through holes 40b are formed in the length direction of the square pipe, the extension length of the scaffolding plate support member 40 can be adjusted.
[0021]
Here, the operation of the height adjusting member 30 will be described with reference to FIGS. 3 to 5.
First, the suspension part 32 is rotated around the shaft part 36 (shaft set screw 37) so as to be in a straight line with the main body part 31, and then pushed into the main body part 31, whereby the shaft part 36 is inserted into the elongated hole 31b. The leading end side of the suspension part 32 is guided and inserted into the main body part 31. As a result, as shown in FIG. 3, the suspending portion 32 is received by the lower end portion of the main body 31 and is maintained in a substantially straight posture with the main body 31.
Next, by pulling the suspension part 32 from the main body part 31, the shaft part 36 is guided to the elongated hole 31b and moves to the end of the elongated hole 31b. Therefore, when the holding of the hanging part 32 is released, the hanging part 32 rotates around the shaft part 36 by its own weight and is suspended from the end part of the main body part 31 as shown in FIG. At this time, the upper end side of the suspension part 32 is located in the notch part 31a.
The overall operation of the hanging part 32 is shown in FIG.
[0022]
Next, a cable laying operation using the cable extension temporary scaffold 100 configured as described above will be described with reference to FIG.
The cable rack 5 for storing cables is produced by connecting the bottoms of a pair of main beams 5a arranged in parallel with a child beam 5b, and is attached to a suspension bolt 8 suspended in pairs at predetermined intervals from the ceiling. It is installed on the mounted L-shaped angle 2.
First, using a ladder, a rolling tower, or the like, the temporary scaffolding material 100 for cable extension is attached to 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 gripping part 11, the operation handle 15 is rotated to raise the first and second pressing plates 16, 17, and the first and second raised The holding frame 3 is attached to the L-shaped angle 2 by inserting and locking the other end sides of the second pressing plates 16 and 17 into the locking holes 22 and 23.
[0023]
Next, as shown in FIG. 3, one hanging part 32 is in a substantially straight line with the main body part 31, and one hanging part 32 is inserted into the insertion hole 29 of the holding part 3. Then, after one suspending portion 32 extends completely from the insertion hole 29, the suspending portion 32 is suspended as shown in FIG. As a result, the main body portion 31 extends at both ends and is accommodated in the insertion hole 29, and the pair of suspending portions 32 hang down from the end portions of the main body portion 31 on both sides of the insertion hole 29. It is attached.
Therefore, the scaffold board support member 40 is inserted into the insertion hole 35 a of the receiving part 35 of the pair of hanging parts 32. Then, the pin 38 is inserted into the pin hole 35 b and the through hole 40 b, and the temporary extension scaffolding material 100 for rack extension is attached to each L-shaped angle 2. At this time, the scaffolding plate support member 40 extends to one side of the cable rack 5 as shown in FIG.
[0024]
Next, the scaffold plate 6 is installed on the adjacent scaffold plate support member 40, and the scaffold plate 6 is fixed to the scaffold plate support member 40 using a fixing bracket (not shown). Furthermore, a temporary scaffolding is assembled by constructing a handrail pipe (not shown) between the columns 7A erected on the scaffolding support member 40.
Then, an operator gets on the scaffold board 6, accommodates and arranges a cable in the cable rack 5, and lays it.
At this time, if the cable racks 5 are arranged in a plurality of stages, after the cable laying is completed in the lower cable rack 5, the scaffolding plate support 4 is inserted into the holding part 10 while moving on the construction scaffolding. Insert into the hole 10a and fasten a fixing screw (not shown). Then, the scaffolding plate 6 is installed on the adjacent scaffolding plate support member 4, and the scaffolding plate 6 is fixed to the scaffolding plate support member 4 using a fixing bracket (not shown). Further, a handrail pipe (not shown) is installed between the columns 7 erected on the scaffolding plate support member 4, and the temporary scaffolding is assembled as in FIG. Thereafter, the cables are stored and arranged in the upper cable rack 5 and laid.
When the cable laying is completed in this way, the columns 7 and 7A are used for handrails while moving from one end side to the other end side of the extending path of the cable rack 5 using a ladder, a rolling tower, or the like. The pipe material, the scaffold plate 6, the temporary scaffolding material 100 for cable extension, etc. are sequentially removed, and the scaffold is disassembled and removed.
[0025]
Thus, according to the first embodiment, the mounting position of the scaffolding plate support member 40 can be adjusted to a position lower than the L-shaped angle 2 using the height adjusting member 30, so that the worker bends and extends. The line work is not performed, that is, the worker is not forced to work tightly, and the work efficiency can be improved.
Further, since the height adjusting member 30 is inserted into the insertion hole 29 and the scaffolding plate support 4 is inserted into the insertion hole 10a, the installation position of the scaffolding plate 6 can be adjusted in two stages, and the cable Even if the racks 5 are installed in multiple stages, the operator is not forced to have a tight working posture.
In addition, every time the installation position of the scaffold plate 6 is adjusted, it is not necessary to suspend the angle one more stage, and the working time can be shortened. Moreover, the dummy L-shaped angle 2A, the suspension bolt 8A, and the long nut 9 are not necessary, and the cost can be reduced. Further, since the dummy L-shaped angle 2A is not necessary, the swaying of the installed scaffolding plate 6 is suppressed, and the stability is also improved.
[0026]
Further, the main body portion 31 is provided with notches 31a on the lower sides of both ends, the long holes 31b are formed so as to face both sides of the both ends, and the suspended portion 32 is a bearing portion 34. The suspension part 32 is attached to the main body 31 by a shaft part 36 in which a bearing part 34 inserted into the main body part 31 is inserted into the elongated hole 31b. Therefore, the suspension portion 32 can be rotated around the shaft portion 36 to be inserted into the insertion hole 29 in a substantially straight posture with the main body portion 31, and the suspension portion 32 can be rotated around the shaft portion 36 by its own weight. The position which hangs down from the both ends of the part 31 can be taken, and the mounting property of the height adjustment member 30 is improved.
[0027]
Further, since the elongated hole 31b is formed with the longitudinal direction of the main body 31 as the longitudinal direction, the main body 31 is made after the suspension portion 32 is rotated about the shaft portion 36 to be substantially in line with the main body 31. By pushing in, the suspension part 32 can be maintained in a substantially straight posture with the main body part 31, and the mounting property is further improved.
[0028]
Embodiment 2. FIG.
In the first embodiment, the suspending portion 32 is formed by a single square pipe 33. However, in the second embodiment, as shown in FIG. The inner and outer corner 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, and the pin 39 is inserted into the hole 33a to prevent it from coming off. Therefore, the height position of the scaffold board 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]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists an effect as described below.
[0030]
According to the present invention, there is provided a temporary scaffolding member for cable extension that is attached to an L-shaped angle that is suspended at predetermined intervals and supports a cable rack by a horizontal piece thereof, and has a first insertion hole. A cylindrical first holding portion formed integrally with the first holding portion on the top of the first holding portion so that the length direction of the groove is parallel to the hole center of the first insertion hole; A gripping portion 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, and the first holding portion on the other side of the first holding portion And a holding frame having a cylindrical second holding portion formed so that the second insertion hole is parallel to the hole center of the first insertion hole. Angle fixing means for fixing the L-shaped angle inserted into the holding frame to the holding frame, and the L holding angle from the second holding portion. A second scaffolding plate support member inserted through the second insertion hole so as to extend substantially parallel to the angle; and a removably attached to the first insertion hole; A cylindrical main body portion that is inserted with both ends protruding, a height adjusting member having a pair of hanging portions that are suspended downward from both ends of the main body portion and provided with an insertion hole at the lower end, and the height Since the first scaffolding plate support member inserted into each insertion hole of the pair of suspension parts so as to extend substantially parallel to the L-shaped angle from the height adjustment member, The height position can be easily adjusted, the wire-drawing work of bending the body is eliminated, and a temporary scaffolding material for cable-drawing that can improve the work efficiency of the operator is obtained.
[0031]
In addition, the main body is provided with notches at the lower sides of both ends, and holes are drilled so as to face both sides of the both ends. The suspension part is mounted on the body part with the bearing part inserted into the body part being pivotally attached to the body part by the shaft part inserted into the hole. It can be rotated around the part and inserted into the first insertion hole in a substantially straight posture with the main body, and the hanging portion rotates around the shaft by its own weight and hangs down from both ends of the main body. This improves the mountability of the height adjusting member.
[0032]
In addition, since the hole is formed in an elongated hole whose longitudinal direction is the length direction of the main body portion, the suspension portion is rotated around the shaft portion so as to be substantially in line with the main body portion, and then into the main body. By pushing in, the suspended portion can be maintained in a substantially straight posture with the main body portion, and the mounting property is further improved.
[0033]
Moreover, since the said suspension part is comprised so that expansion and contraction is possible, the height position of a scaffold board | plate support material can be adjusted in multiple steps according to the installation step number of a cable rack, and a worker's working efficiency can further be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view illustrating a configuration of a temporary scaffold for cable extension according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of a main part showing a configuration of a height adjusting member in the temporary cable scaffold for cable extension according to the first embodiment of the present invention.
FIG. 3 is a perspective view for explaining the operation of the height adjusting member in the temporary cable scaffolding scaffold according to Embodiment 1 of the present invention.
FIG. 4 is a perspective view for explaining the operation of the height adjusting member in the temporary cable scaffolding scaffold according to Embodiment 1 of the present invention.
FIG. 5 is a front view for explaining the operation of the height adjusting member in the temporary cable scaffolding scaffold according to the first embodiment of the present invention.
FIG. 6 is a perspective view showing an attachment state of the temporary cable scaffold for cable extension according to the first embodiment of the present invention.
FIG. 7 is a perspective view showing a suspended portion of a height adjusting member in a temporary scaffolding member for cable extension according to a second embodiment of the present invention.
FIG. 8 is an exploded perspective view illustrating the configuration of a conventional temporary scaffold for cable extension.
9 is a perspective view showing an attached state of the temporary cable scaffold for cable extension shown in FIG. 8. FIG.
10 is a perspective view showing another attachment state of the temporary cable scaffolding scaffolding member shown in FIG. 8. FIG.
[Explanation of symbols]
2 L-shaped angle, 2a horizontal piece, 3 holding frame, 4 scaffolding plate support (second scaffolding plate support), 5 cable rack, 10 holding part (second holding part), 10a insertion hole (second Insertion hole), 11 gripping part, 12 support arm (first holding part), 29 insertion hole (first insertion hole), 30 height adjusting member, 31 body part, 31a notch part, 31b oblong hole, 32 32A Suspension part, 34 Bearing part, 35a Insertion hole, 36 Shaft part, 40 Scaffold board support material (second scaffold board support material), 100 Temporary scaffold material for cable extension.

Claims (4)

A cable scaffolding temporary scaffolding material that is attached to an L-shaped angle that is suspended for each predetermined gap and supports the cable rack by the horizontal piece,
A cylindrical first holding portion having a first insertion hole, and the groove is formed above the first holding portion so that the length direction of the groove is parallel to the hole center of the first insertion hole. A gripping 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; and the first holding portion A cylindrical second holding formed integrally with the first holding portion on the other side and having the second insertion hole formed so that the hole center is parallel to the hole center of the first insertion hole. A holding frame having a portion;
Angle fixing means for fixing the L-shaped angle inserted into the gripping part to the holding frame;
A second scaffold 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;
A cylindrical main body portion that is removably attached to the first insertion hole, is inserted through the first insertion hole with both ends protruding, and is suspended downward from both ends of the main body portion, A height adjustment member having a pair of hanging portions provided with insertion holes;
A cable comprising: a first scaffolding plate support member inserted into each insertion hole of the pair of suspension portions so as to extend from the height adjustment member substantially parallel to the L-shaped angle. Temporary scaffolding material for wire drawing. The main body is provided with notches at the lower sides of both ends, and holes are formed so as to face both sides of the both ends, and the suspension is provided with a bearing at the upper end. 2. The suspension part according to claim 1, wherein the bearing part inserted into the main body part is attached to the main body part by being axially attached by a shaft part inserted through the hole. Temporary scaffolding material for cable extension. The temporary scaffolding material for cable extension according to claim 2, wherein the hole is formed in a long hole whose longitudinal direction is the length direction of the main body. The temporary scaffolding material for cable extension according to any one of claims 1 to 3, wherein the suspension portion is configured to be extendable and contractible.

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