JPH07217192A - Scaffolding device - Google Patents

Abstract

PURPOSE:To mount a scaffolding-mounting metal fitting to a post mounting metal fitting easily, and in a completely nonslip state, and remove the scaffolding mounting metal fitting from the post mounting metal fitting easily. CONSTITUTION:An insertion hole 8, which is open upwardly, and an engagement hole 9, which is open laterally, are installed to a post mounting metal fitting 3. A pin hole 20 is installed to the side of an insertion leg 11 of a scaffolding mounting metal fitting 2. An engagement pin 4, which is movable in and out from the pin hole 20, and a sheet spring 12A, which energizes a spring from the pin hole 20 in the projection direction B, are housed inside the insertion leg 11. The engagement pin 4 is pulled into the pin hole 20 when the insertion leg 11 is inserted while the engagement pin 4, which is pushed out by the sheet spring 12A when the pin hole 20 moves to the engagement hole 9, is engaged with an engagement hole 9 from the lateral direction, which makes it possible to insert and remove the insertion leg 11.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device used when constructing columns, beams and the like.

2. Description of the Related Art Conventionally, it is often the case that wooden or steel scaffolds are installed by utilizing a platform such as a stepladder. in this case,
In order to secure the safety of the scaffold, it is necessary to install stepladders and horses, for example, at intervals of 1.8 m, it is difficult to install a stable scaffold, and it is necessary to fix the scaffold every time the scaffold is installed. There was a problem of spending time on the installation work. Therefore, recently, a construction method of installing the scaffold 10 by utilizing the scaffolding device 1 ′ shown in FIG. 11 has been proposed. The column 5 made of H-shaped steel is fitted with a box-shaped column mounting bracket 3'using bolts or the like.
Is fixed, and an insertion hole 8 opened upward is provided in this pillar mounting member 3 '. Further, an insertion leg 11 ′, which is inserted into the insertion hole 8 from above and supported, is provided at the end of the scaffolding mounting bracket 2 supporting the scaffold 10 on the side of the pillar 5. Then, the insertion leg 11 'of the scaffold mounting bracket 2'is inserted into the insertion hole 8 of the column mounting bracket 3'from above, while the scaffold mounting bracket 2'is provided at the tip of the reinforcing metal fitting 6 for reinforcing the scaffold mounting bracket 2'from below. By fitting the letter-shaped piece 7 on the side surface of the pillar 5, the scaffold mounting bracket 2 is horizontally supported with respect to the pillar 5, and the scaffold 10 is mounted on the scaffold mounting bracket 2. At this time, as a measure for preventing the insertion leg 11 'from coming off, the insertion leg 11' is conventionally fixed to the column mounting bracket 3'by using a separate retaining pin or wedge (not shown). I was trying to do it.

However, the scaffold mounting bracket 2 is attached to the pillar mounting bracket 3'by using separate retaining pins or wedges.
In the conventional method of fixing to the above, as the number of parts increases, the insertion leg 1 of the scaffolding attachment 2 to the insertion hole 8 of the column attachment 3 '
There is a problem that loading 1'is troublesome and much work and time are required for the attachment work of the scaffold 10. In addition, conventional retaining pins and wedges generally allow the insertion leg 11 'to be inserted only in one direction and not to be pulled out in the opposite direction. Foot 1
There is a problem in that it is difficult to pull out 1'and it takes a lot of time and labor to remove the scaffold 10. The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to easily attach a scaffold mounting bracket to a column mounting bracket in a sufficient retaining state and to mount the column. (EN) Provided is a scaffolding device capable of easily detaching a scaffolding mounting metal fitting from a metal fitting.

In order to solve the above-mentioned problems, the scaffolding device according to the present invention has an insertion hole 8 opened upward and a side opening opened in a pillar mounting member 3 fixed to a pillar 5. Locking holes 9 are provided respectively, and an insertion leg 11 which is inserted into and supported by the insertion hole 8 from above is provided at an end portion of the scaffold mounting bracket 2 supporting the scaffold 10 on the side of the pillar 5. A pin hole 20 corresponding to the locking hole 9 of the pillar mounting member 3 is formed on the side surface of the insertion leg 11, and a locking pin 4 that can be retracted from the pin hole 20 is formed inside the insertion leg 11. , Spring means 12 for constantly urging the locking pin 4 toward the direction B protruding from the pin hole 20 are housed, and the locking pin 4 is a spring of the spring means 12 when the insertion leg 11 is inserted. The insertion leg 11 can be freely inserted into the insertion hole 8 by being pulled into the pin hole 20 against the force. Is, and the pin hole 20 of the Sakomiashi 11
When the lock pin 4 is pushed to the outside of the pin hole 20 by the spring force of the spring means 12 when is moved to the position corresponding to the lock hole 9, the lock pin 4 is locked in the lock hole 9 from the side. The insertion leg 11 is prevented from coming off the pillar mounting bracket 3, and the insertion leg 1
When 1 is pulled out, the locking pin 4 is pulled into the pin hole 20 against the spring force of the spring means 12, and the locking pin 4 is disengaged from the locking hole 9, so that the insertion leg 11 is inserted into the insertion hole 8. It is characterized in that it can be pulled out from. Further, the diameter D of the pin hole 20 of the insertion leg 11 is set to be larger than the diameter C of the locking pin 4, and the spring means 12 is fixed near the opening 15 provided at the lower portion 13 of the lower portion 13 of the insertion leg 11. A leaf spring 12A having a rising portion 18 whose upper end is raised along the insertion direction A of the insertion leg 11 and whose front end is a free end
It is preferable that the locking pin 4 is supported on the upper part of the leaf spring 12A. Further, the pin hole 2 of the insertion leg 11
The diameter D of 0 is set to be larger than the diameter C of the locking pin 4, the upper part of the spring means 12 is fixed near the upper end of the insertion leg 11, and the lower part 14 is in the insertion direction A of the insertion leg 11. It is preferable that the leaf spring 12C has a hanging portion 25 that hangs down along the tip thereof to have a free end, and the locking pin 4 is supported on the tip side of the leaf spring 12C. Further, the locking pin 4 is housed in a pipe 30 extending in a direction intersecting the insertion direction A of the insertion leg 11, and the spring means 12 allows the locking pin 4 to be inserted from the pipe 30 into a pin hole of the insertion leg 11. Coil spring 12B that constantly biases the spring in the direction B projecting outward
Preferably consisting of

According to the present invention, however, when the insertion leg 11 is inserted, the locking pin 4 housed in the insertion leg 11 is pulled into the pin hole 20 against the spring force of the spring means 12. As a result, the insertion leg 11 can be freely inserted into the insertion hole 8, and when the pin hole 20 of the insertion leg 11 moves to a position corresponding to the locking hole 9 of the column mounting member 3, the spring force of the spring means 12 is increased. The locking pin 4 pushed out of the pin hole 20 is laterally locked in the locking hole 9 so that the insertion leg 11 is attached to the pillar mounting member 3 with one touch. At this time, unless the locking pin 4 is pulled into the pin hole 20 against the spring force of the spring means 12, the locked state of the locking pin 4 and the locking hole 9 is maintained, so that the pillar mounting Metal fittings 3
A sufficient retaining effect of the insertion leg 11 with respect to the insertion hole 8 is exhibited. Further, when the insertion leg 11 is pulled out, the locking pin 4 is pulled into the pin hole 20 against the spring force of the spring means 12, and the locking pin 4 is disengaged from the locking hole 9. Although the insertion leg 11 can be securely fixed to the metal fitting 3, the insertion leg 11 can be easily inserted and removed.

【Example】

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings. In this embodiment, a scaffolding device 1 having a structure of a retaining pin 4 for preventing slipping off when the scaffolding mounting bracket 2 is mounted on the box-shaped column mounting bracket 3 is exemplified. As shown in FIG. 3, the scaffolding device 1 includes a box-shaped pillar mounting bracket 3 fixed to a pillar 5 made of H-shaped steel or the like, which is a main body of a building, with bolts or the like.
It is composed of a scaffold mounting bracket 2 that supports the scaffold. In the figure, 6 is a reinforcing metal fitting having a U-shaped piece 7 fitted on the side surface of the pillar 5. First, the side portion 3a of the box-shaped pillar mounting bracket 3
As shown in FIG. 1, an insertion hole 8 opened in the up-down direction is provided in parallel with the pillar 5, and a locking portion opened to the side opposite to the pillar 5 is provided at the center of the side portion 3a. A hole 9 is provided.
On the other hand, at the end of the scaffold mounting bracket 2 that supports the scaffold 10 on the column 5 side, a hollow insertion leg 11 that is supported by being inserted from above into the insertion hole 8 of the column mounting bracket 3 hangs down. It is projected. A reinforcing plate 17 for fixing the lower portion 13 of the L-shaped leaf spring 12A (FIG. 4) forming the spring means 12 is attached to the lower end portion of the insertion leg 11. Leaf spring 12A
The tip of the lower part 13 of the lower part 13 is fixed to the lower surface of the reinforcing plate 17 with a screw 16 at the end near the pillar 5, and the opening 15
The lower portion 13 of the leaf spring 12A arranged facing to is movable in the vertical direction. Furthermore, leaf spring 12A
A rising part 18 having a free end at the rising end is bent along the insertion direction A of the insertion leg 11 from below, and the locking pin 4 is supported on the rising part 18. The locking pin 4 is constantly biased by a leaf spring 12A in a direction B projecting from a pin hole 20 described later. On the side surface of the insertion leg 11 opposite to the pillar 5, a pin hole 20 is provided in which the locking pin 4 can be retracted. This pin hole 20 is arranged corresponding to the locking hole 9 of the pillar mounting member 3 when the insertion leg 11 is mounted in the insertion hole 8 of the pillar mounting member 3, and is shown in FIG. As shown, the diameter D of the pin hole 20 is set to be larger than the diameter C of the locking pin 4, so that the locking pin 4 has the pin hole 2
It can move in and out from 0 and can move vertically. Further, the tapered pin hole 2 corresponding to the pin hole 20 is provided on the outside of the side surface of the insertion leg 11 opposite to the pillar 5.
1 is reinforced by the side reinforcing plate 22 provided with
The tapered pin hole 21 of the side surface reinforcing plate 22 is set to have a diameter substantially the same as the diameter D of the pin hole 20, and is formed in a tapered shape in which the diameter gradually increases toward the outside, and is locked. The pin 4 has a structure that allows it to project and retract with respect to the pin holes 20 and 21 with a margin. Next, when installing the scaffolding device 1, first, the pillar mounting brackets 3 are fixed to the plurality of pillars 5, respectively, and the insertion legs 11 of the scaffolding mounting bracket 2 are inserted into the insertion holes 8 of the pillar mounting bracket 3. By doing so, the scaffold mounting bracket 2 is supported horizontally with respect to the pillar 5. That is, as shown in FIG. 2 (a), the insertion leg 11 is inserted into the insertion hole 8 of the pillar mounting member 3 from above in the arrow A direction. And leaf spring 12A
When the locking pin 4 protruding from the pin hole 20 hits the upper end of the pillar mounting member 3 by the spring force of the
0, and the rising portion 18 of the leaf spring 12A is bent backward around the lower portion 13 of the leaf spring 12A (see FIG. 2).
(State (b)), when the insertion leg 11 is further inserted, the locking pin 4 slides on the inner wall of the insertion hole 8 and is drawn in the pin hole 20 in the arrow B direction (see FIG. 2 (c)). Status). At this time, the bending of the leaf spring 12A is interlocked with the vertical movement of the locking pin 4, the diameter D of the pin hole 20 is set larger than the diameter C of the locking pin 4, and the tapered pin hole 21 is Since it is formed in a tapered shape that expands outward, the pin hole 2
0 and the tapered pin holes 21 are provided with allowances respectively to disperse the pressure applied to the locking pin 4 from the pillar mounting member 3, and the locking pin 4 is smoothly drawn into the pin hole 20. . Then, as shown in FIG. 2D, when the pin hole 20 of the insertion leg 11 is moved below the upper end of the locking hole 9 of the column mounting member 3, the locking pin of the leaf spring 12A is used. By rotating 4 in the direction of arrow E and locking it in the locking hole 9, the insertion leg 11 is attached to the pillar mounting member 3 with one touch. Also in this state, the insertion leg 1
The direction in which 1 is pulled out is orthogonal to the locking direction by the locking pin 4, and unless the locking pin 4 is pushed, the locking pin 4
Since it cannot be disengaged from the locking hole 9, a sufficient retaining effect of the insertion leg 11 with respect to the pillar mounting member 3 is exerted, and it is securely fixed. After that, the scaffold 10 is fixed on the scaffold mounting bracket 2 with a wire or the like, and the work of mounting the scaffold 10 is completed. On the other hand, when removing the scaffolding 10, the insertion leg 11 is pulled out in the arrow C direction from the state shown in FIG. Then, when the upper end of the locking hole 9 hits the locking pin 4 in the direction of the arrow C, the locking pin 4 is pushed downward and tries to rotate in the direction of the arrow D so as to come out of the locking hole 9 and remain as it is. The insertion leg 11 can be pulled out from the insertion hole 8 with. At this time, since the locking pin 4 is easily retracted when the insertion leg 11 is inserted depending on the acting direction of the force, and the force for pulling out is such that the locking pin 4 is pushed out, the insertion leg 1
There is no fear of being easily detached from the insertion hole 8 when the user mounts 1, and it can be removed from the insertion hole 8 with one touch when the insertion leg 11 is pulled out. As a result, the scaffold mounting bracket 2 can be smoothly inserted into the pillar mounting bracket 3 and can be securely fixed, and can be easily removed, so that the workability of mounting and removing the scaffold 10 is improved. Moreover,
The components of this embodiment as a measure for preventing the insertion leg 11 from coming off are the locking pin 4 and the leaf spring 1 attached to the insertion leg 11.
The insertion leg 11 as a whole can be made into a simple structure as compared with the conventional separate retaining pin system or wedge system which is composed of 2A and the screw 16. In addition, the leaf spring 12A,
The structural portion of the locking pin 4 can be retrofitted as a separate component without being integrated with the insertion leg 11, and the component can be easily replaced. In addition, L-shaped leaf spring 12A
Locking pin 4 by utilizing the entire bending and its mechanical change
Since it is moved up and down, it has excellent durability. The side surface reinforcing plate 22 may be omitted. (Embodiment 2) A second embodiment of the present invention is shown in FIGS. In this embodiment, as shown in FIG. 5, the push-type locking pin 4 is fixed in the insertion leg 11 and is housed in the pipe 30 extending in the direction intersecting the insertion direction A of the insertion leg 11. And a coil spring 12 that constitutes the spring means 12.
By B, the locking pin 4 is always spring-biased in the direction B protruding from the inside of the pipe 30 to the outside of the pin hole 20 of the insertion leg 11. Further, in this embodiment, the diameter of each of the pin hole 20 and the tapered pin hole 21 in which the locking pin 4 is freely retractable is set to be substantially the same as that of the locking pin 4. Other configurations are similar to those of the embodiment of FIG. Therefore, in this embodiment, it is necessary to push the locking pin 4 with a finger both when inserting and pulling out the insertion leg 11. That is, when the insertion leg 11 is loaded, as shown in FIG.
The locking pin 4 is pressed with the finger 50 to compress the coil spring 12B and push the locking pin 4 into the pipe 30, and the insertion leg 11 is inserted into the insertion hole 8 in this state. At this time, as shown in FIG. 6B, the locking pin 4 is held in a state of being pushed into the pin hole 20 while slidingly contacting the inner wall of the insertion hole 8. Then, when the pin hole 20 of the insertion leg 11 moves below the upper end of the locking hole 9 of the pillar mounting member 3, the locking pin 4 is pushed out of the pin hole 20 by the spring force of the coil spring 12B. By laterally locking the locking holes 9 with the locking holes 9, the insertion leg 11 can be attached to the pillar mounting member 3 with one touch. Further, in this state, the direction of pulling out the insertion leg 11 and the direction of locking by the locking pin 4 are orthogonal to each other, and the locking pin 4 can be removed from the locking hole 9 unless the locking pin 4 is pushed. Because you can't
Sufficient retaining effect of the insertion leg 11 with respect to the pillar mounting bracket 3 is exhibited, and the pillar 11 is securely fixed. On the other hand, even when the insertion leg 11 is pulled out, the insertion leg 11 can be easily pulled out from the insertion hole 8 simply by pressing the locking pin 4 with the finger 50 and pushing the locking pin 4 into the pipe 30. it can. Further, in the present embodiment, the constituent parts for preventing the insertion leg 11 from coming off are composed of the locking pin 4, the coil spring 12B and the pipe 30 shown in FIG. Compared to the retaining pin method and wedge method, the entire structure can be a simple structure. Moreover, by storing the locking pin 4 and the coil spring 12B in the pipe 30,
The locking pin 4 and the coil spring 12B can be supported at accurate positions, and the structural parts of the locking pin 4 and the coil spring 12B can be retrofitted as separate parts without being integrated with the insertion leg 11. Exchange becomes easy. (Embodiment 3) A third embodiment of the present invention is shown in FIGS. In the present embodiment, as shown in FIG. 8, the push type locking pin 4 is provided with the long leaf spring 12 which constitutes the spring means 12.
The lock pin 4 is supported at the end of C, and the locking pin 4 is always biased by a spring in a direction B projecting outward of the pin hole 20 of the insertion leg 11. Other configurations are similar to those of the embodiment of FIG. As shown in FIG. 8, the leaf spring 12C of the present embodiment is housed inside the insertion leg 11, and the upper portion 14a is fixed near the upper end of the insertion leg 11 by welding 60 or the like. Along with the lower part 14b, the lower part 14b hangs along the inserting direction A of the insertion leg 11 and the tip is a free end 25.
At the tip of the hanging portion 25, the locking pin 4 which can be retracted from the pin hole 20 and the tapered pin hole 21 is supported. Therefore, it is necessary to push the locking pin 4 with the finger 50 both when the insertion leg 11 is inserted and when it is pulled out. First, when inserting the insertion leg 11, as shown in FIG.
As shown in FIG. 5, when the locking pin 4 is pressed by the finger 50, the leaf spring 12C bends around the upper portion 14a, the locking pin 4 is pushed into the pin hole 20, and the insertion leg 11 is inserted in that state. It can be inserted into the insertion hole 8. At this time, the diameter of the pin hole 20 is set larger than the diameter of the locking pin 4, and the tapered pin hole 21 is formed in a tapered shape that expands outward. It is possible to disperse the pressure applied to the locking pin 4 from the column mounting metal fittings 3 by providing each 21 with a margin.
It will be smoothly drawn in (state of FIG. 9B). Then, when the pin hole 20 of the insertion leg 11 moves below the upper end of the locking hole 9 of the pillar mounting member 3, the locking pin 4 is pushed out of the pin hole 20 by the spring force of the leaf spring 12C. Thus, the insertion leg 11 can be attached to the column attachment fitting 3 with one touch by engaging the engagement hole 9 from the side. Further, in this state, the direction of pulling out the insertion leg 11 and the direction of locking by the locking pin 4 are orthogonal to each other, and the locking pin 4 can be removed from the locking hole 9 unless the locking pin 4 is pushed. Since this is not possible, a sufficient retaining effect of the insertion leg 11 with respect to the pillar mounting member 3 is exerted, and it is securely fixed. On the other hand, even when the insertion leg 11 is pulled out, the locking pin 4 is pressed by pressing the locking pin 4 with a finger.
Can be pushed into the pin hole 20, and the insertion leg 11 can be pulled out from the insertion hole 8 in that state. Further, in this embodiment, the component for preventing the slip-off of the insertion leg 11 is the locking pin 4 and the leaf spring 12C shown in FIG. The whole structure can be a simple structure compared to the locking pin method and the wedge method. Moreover, by utilizing the inside of the insertion leg 11 as a storage space for the leaf spring 12C, even a long leaf spring 12C can be stored in the insertion leg 11, and the leaf spring 12C can be stored easily. Become. Furthermore, the leaf spring 12C and the structure of the locking pin 4 can be retrofitted as a separate component without being integrated with the insertion leg 11, facilitating the replacement of the component and the long leaf spring 12
By using C, it becomes excellent in durability. In each of the above-mentioned embodiments, the scaffolding device 1 according to the present invention is used for the pillar 5 of the building.
However, it is also widely applicable to erection pillars other than buildings.

As described above, according to the first aspect of the present invention, the pillar mounting member fixed to the pillar is provided with the insertion hole opening upward and the locking hole opening sideward, respectively. , An insert leg that is supported by being inserted into the above-mentioned insertion hole from above is provided at the end of the scaffold mounting bracket supporting the scaffold on the side of the pillar, and the side of the insertion leg is provided with a locking hole for the pillar mounting bracket. A corresponding pin hole is formed, and inside the insertion leg, a locking pin that can be retracted from the pin hole, and a spring means that constantly biases the locking pin in a direction projecting from the pin hole. When the insertion leg is inserted, the locking pin stored in the insertion leg is pulled into the pin hole against the spring force of the spring means. The leg can be inserted freely into the insertion hole, and the pin hole of the insertion leg corresponds to the locking hole of the column mounting bracket. The locking pin pushed out of the pin hole by the spring force of the spring means when it is moved to the position is locked laterally into the locking hole, so that the scaffold mounting bracket can be easily attached to the pillar mounting bracket. It can be installed in a state that it is sufficiently retained, and it can be securely fixed, and the insertion leg is inserted into the insertion hole of the pillar mounting bracket compared to the conventional separate prevention pin method and wedge method. , It becomes easy to fix, and the labor and time required for scaffolding installation work can be reduced. Furthermore, when the insertion leg is pulled out, the locking pin is pulled into the pin hole against the spring force of the spring means, so that the locking pin disengages from the locking hole. Although the insertion leg can be securely fixed, the scaffold mounting bracket can be easily attached and detached, and the labor and time required for scaffold removal work can be reduced.
According to the second aspect of the invention, the diameter of the pin hole of the insertion leg is set to be larger than the diameter of the locking pin, and the spring means has a lower portion fixed near the opening provided at the lower end of the insertion leg. At the same time, the upper part consists of a leaf spring with a rising part that rises along the insertion direction of the insertion leg and the leading end is a free end, and since the locking pin is supported on the upper part of the leaf spring, there is a margin in the pin hole. By holding it, you can disperse the pressure applied to the locking pin,
Since the locking pin can be smoothly drawn into the pin hole, and the component for preventing the insertion leg from coming off is composed of the locking pin, leaf spring, etc. attached to the insertion leg, Compared to the conventional separate retaining pin method and wedge method, the entire insertion leg can be made into a simple structure, and the bending of the entire leaf spring can be utilized, so durability is improved. There is an effect. Claim 3
According to the invention described above, the diameter of the pin hole of the insertion leg is set to be larger than the diameter of the locking pin, and the spring means has an upper portion fixed near the upper end of the insertion leg and a lower portion with the insertion leg. Consists of a leaf spring that hangs along the insertion direction of the leaf spring and has a hanging portion whose tip is a free end, and a locking pin is supported on the tip side of the leaf spring. The parts consist of a locking pin attached to the insertion leg and a leaf spring, and the whole structure can be a simple structure compared to the conventional separate retaining pin system and wedge system. By utilizing the inside of the insertion leg as a storage space for the leaf spring, even a long leaf spring can be stored in the insertion leg, which improves the storability and utilizes the bending of the entire leaf spring. Therefore, there is an effect that durability is improved. Further, according to the invention as set forth in claim 4, the locking pin is housed in a pipe extending in a direction intersecting the inserting direction of the insertion leg, and the spring means includes the locking pin from the inside of the pipe. Since it is composed of a coil spring that always urges the spring in the direction that protrudes outward of the hole, the component parts for preventing the insertion leg from coming off are the locking pin attached to the insertion leg, the coil spring,
It consists of a pipe, and compared to the conventional separate retaining pin method and wedge method, the whole structure can be a simple structure, and by storing the locking pin and the coil spring in the pipe, There is an effect that the locking pin and the coil spring can be supported at accurate positions. Further, the locking pin and the pipe can be retrofitted as separate parts, which has an effect that the parts can be easily replaced.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a first embodiment of the present invention.

2A to 2D are schematic cross-sectional views for explaining the operation of the locking pin and the leaf spring.

FIG. 3 is a front view of the scaffolding device of the above.

FIG. 4 is a perspective view of the leaf spring of the same.

FIG. 5 is a partially cutaway front view of the second embodiment of the present invention.

6 (a) and 6 (b) are schematic cross-sectional views for explaining the operation of the locking pin and the coil spring.

7A is a front view of a locking pin, FIG. 7B is a perspective view of a pipe, and FIG. 7C is a perspective view of a coil spring.

FIG. 8 is a partially cutaway front view of a third embodiment of the present invention.

9 (a) and 9 (b) are schematic cross-sectional views for explaining the operation of the locking pin and the leaf spring.

FIG. 10 (a) is a front view of the same pin, and FIG. 10 (b) is a perspective view of a leaf spring.

FIG. 11 is a front view of a conventional scaffolding device.

[Explanation of symbols]

 1 scaffolding device 2 scaffolding mounting bracket 3 pillar mounting bracket 4 locking pin 5 pillar 8 insertion hole 9 locking hole 10 scaffold 11 insertion leg 12 spring means 12A, 12C leaf spring 12B coil spring 15 opening 18 rising part 20 pin hole 25 Hanging part 30 pipe

Claims (4)

[Claims] 1. A pillar mounting member fixed to a pillar is provided with an insertion hole opening upward and a locking hole opening sideways, respectively.
An insertion leg that is supported by being inserted into the insertion hole from above is provided at the end of the scaffold mounting bracket that supports the scaffold on the pillar side,
A pin hole corresponding to the locking hole of the column mounting metal fitting is formed on the side surface of the insertion leg, and a locking pin that can be retracted from the pin hole inside the insertion leg and a locking pin Spring means for constantly urging the spring in a direction projecting from the housing, and the locking pin is pulled into the pin hole against the spring force of the spring means when the insertion leg is inserted. The insertion leg is freely inserted into the insertion hole, and when the pin hole of the insertion leg moves to the position corresponding to the locking hole, the locking pin is pushed out of the pin hole by the spring force of the spring means. Is locked in the locking hole from the side to prevent the insertion leg from coming off the pillar mounting metal fitting, and when the insertion leg is pulled out, the locking pin is pulled into the pin hole against the spring force of the spring means. And the locking pin is released from the locking hole, and the insertion leg is pulled out from the insertion hole. Scaffolding apparatus characterized by formed by a capacity. 2. The diameter of the pin hole of the insertion leg is set to be larger than the diameter of the locking pin, and the lower part of the spring means is fixed near the opening provided at the lower end of the insertion leg and the upper part of the spring means is inserted. The scaffold according to claim 1, comprising a leaf spring having a rising portion whose rising tip is a free end along the inserting direction of the trailing leg, and the locking pin being supported on the upper portion of the leaf spring. apparatus. 3. The diameter of the pin hole of the insertion leg is set to be larger than the diameter of the locking pin, and the spring means has an upper portion fixed near the upper end of the insertion leg and a lower portion inserted into the insertion leg. 2. The scaffolding device according to claim 1, wherein the scaffolding device comprises a leaf spring having a hanging portion which is hung down along the direction and whose tip is a free end, and a locking pin is supported on the tip end side of the leaf spring. 4. The locking pin is housed in a pipe extending in a direction intersecting the insertion direction of the insertion leg, and the spring means projects the locking pin from the pipe to the outside of the pin hole of the insertion leg. The scaffolding device according to claim 1, wherein the scaffolding device comprises a coil spring that always biases the spring in the direction of movement.