JPH06146571A - Temporary scaffold - Google Patents

Abstract

PURPOSE:To attach scaffold closely to a wall of building by supporting a tread of a scaffold plate to be almost in the same level with the upper face of the wall body or placing the scaffold plate on both sides of the wall body. CONSTITUTION:Three support members 10, 10, 10 are arranged at the upper end of a wall body 1 with nearly same intervals so as to protrude the support 12 from the side face 1A of the wall body 1. The holes 22, 22 of the scaffold plate 20 are inserted in the pins 13, 13 of the support 12 of respective support members 10, then the scaffold plate 20 is placed on the support 12. At this time, the tread face 21 of the scaffold plate is forced to be almost the same level with the upper end face 1B of the wall body 1. Or the two scaffold plates may be laid down at both sides of the wall body 1. In this way, even a wall body close to a building or a wall body parallel to an auxiliary construction can be provided with scaffolds.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary scaffold used when constructing or repairing a building.

[0002]

2. Description of the Related Art When constructing a building or repairing an outer wall of a building, etc., when a work at a high place is required, a worker uses a scaffold to perform these works.

Such a scaffold is disclosed in Japanese Utility Model Laid-Open No. 4-55948. As shown in FIG. 5, this simple scaffold is used by being attached to the upper end of the wall body 1 of the building.
In this simple scaffolding, suspension fixing members 52, 52 including scaffolding plate support arms 51, 51 are fixed to the upper end of the wall 1 of the building. At the time of work, the worker mounts the scaffolding plate 53 on the scaffolding plate supporting arms 51, 51 of the suspension fixing members 52, 52, and uses this simple scaffolding with the tread of the scaffolding plate 53 as a work surface.

Since such a simple scaffold is easily attached to the wall body 1, the work efficiency is improved.

[0005]

By the way, as shown in FIG. 6, there is a wall 1 to which a scaffold is attached, in which various accessories 1C such as a doorway are arranged in parallel. It is difficult to attach the above-mentioned simple scaffold to the wall 1 due to interference with the accessory 1C. Further, when the space between the wall body 1 and the building 2 is narrow, it is difficult to attach this simple scaffold due to the interference with the building 2.

An object of the present invention is to provide a temporary scaffold which can be attached to a wall body in which accessories are arranged side by side or a wall body close to a building, excluding such drawbacks.

[0007]

In order to achieve the object, a first aspect of the present invention is a temporary scaffolding attached to an upper end of a wall body, which includes a wall-hanging portion having a recess fitted to the upper end of the wall body. At the same time, it is supported by a plurality of support members including a support portion provided on the wall hanging portion so as to protrude from one wall surface side of the wall body, and a support portion of the support member arranged at a distance from the upper end of the wall body. A work plate, and the tread surface of the work plate is supported so as to be substantially flush with the upper end surface of the wall body.

According to a second aspect of the present invention, in the temporary scaffolding attached to the upper end of the wall body, the temporary scaffolding is provided with a recess fitted to the upper end of the wall body, and the wall hanging portion is projected from both wall surface sides of the wall body. A plurality of support members provided with a pair of support portions, a work plate supported by a support portion on one wall surface side of the support member, which is arranged at a distance from the upper end of the wall body, A work plate supported by the other wall-side support portion of the support member spaced apart from the upper end, and supported such that the tread surface of the work plate is substantially flush with the upper end surface of the wall body. It is characterized by being

Further, a pin may be provided in the support portion of the first and second inventions, and a hole into which the pin fits may be provided in the work plate.

[0010]

According to the first aspect of the invention, since the tread surface of the work plate is substantially flush with the upper end surface of the wall body, the work surface is composed of the tread surface of the work plate and the upper end surface of the wall body.

Further, according to the second aspect of the present invention, since the work plates are arranged on both sides of the wall body, the work surface is composed of the tread surface of the two work plates and the upper end surface of the wall body.

Further, the work plate is fixed by providing the support member of the first and second inventions with the pin and providing the work plate with the hole to be fitted into the pin.

[0013]

Embodiments of the present invention will now be described with reference to the drawings.

[First Embodiment] FIGS. 1 to 3 are views showing a first embodiment of the present invention. 1 is a perspective view of the first embodiment, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a side view of FIG. The temporary scaffold is used by being attached to the upper end of the wall body 1 of the building 2, and includes a support member 10 and a work plate 20.

The wall-hanging portion 11 of the support member 10 has a U-shaped cross section. The upper end of the wall body 1 is fitted into the U-shaped recess 11A. That is, the wall hanging portion 11 is so constructed that the concave portion 11 A extends over the upper end of the wall body 1.
It is detachably attached to the upper end of. A support portion 12 is provided on the wall hanging portion 11.

The support portion 12 has a plate-like shape and has a plate surface 1
2A is projected on one side surface 11C of the wall hanging portion 11 so that 2A is perpendicular to the upper surface 11B of the wall hanging portion 11. The contact surface 12B of the support 12 has two pins 13,
13 are spaced apart and provided vertically. These two pins 13 and 13 are for preventing the work plate 20 from falling off.

In this support member 10, the length L1 from the other side surface 11D of the wall hanging portion 11 to the tip of the support portion is 40.
It is 0 mm. This length L1 is the width of the work surface necessary for the worker to work.

The work plate 20 is in the shape of a long plate and is used by a worker to work on the tread surface 21 of the work plate 20. The width of the work plate 20 is the length of the support portion 12. Is almost the same as. The work plate 20 is provided with holes 22 and 22 that fit into the pins 13 and 13 protruding from the support portion 12. The pins 13 and 13 are inserted into the holes 22 and 22,
The work plate 20 is placed on the contact surface 12B of the support portion 12.
The work plate 20 has a thickness such that the tread surface 21 of the work plate 20 is substantially flush with the upper end surface 1B of the wall body 1 when the work plate 20 is placed on the support portion 12.

The first embodiment is used as follows. In the first embodiment, three support members 10, 10, 10 and one work plate 20 are used as a set.

When a worker makes a scaffold on the wall body 1 for repairing the building 2, etc., three support members 10, 10, 10 are provided at the upper end of the wall body 1, and the support portion 12 is a side surface of the wall body 1. It is arranged at substantially equal intervals so as to project from the 1A side. After this,
The operator operates the pins 13 and 1 of the support portion 12 of each support member 10.
3 into which the holes 22 and 22 of the work plate 20 are inserted,
Is placed on the support 12. This completes the assembly of the scaffold.

By this assembly, the tread 2 of the work plate 20
1 is close to the upper end surface 1B of the wall body 1 and is substantially flush with the upper end surface 1B.

When working using this scaffold, the worker uses both the tread surface 21 of the work plate 20 and the upper end surface 1B of the wall 1 as work surfaces. That is, the worker supports the body by stepping on both the tread surface 21 of the work plate 20 and the upper end surface 1B of the wall body 1 with the foot.

As described above, according to the first embodiment, the tread surface 21 of the work plate 20 and the upper end surface 1B of the wall 1 can be used as the work surface of the worker. However, since the conventional simple scaffold uses only the tread surface of the scaffold plate as a work surface, a scaffold plate having a width of 400 mm is required. On the other hand, the working plate 2 of the first embodiment
The width of 0 can be narrowed by the width of the upper end surface 1B of the wall body 1. That is, the width can be narrower than 400 mm. As a result, scaffolding can be assembled even where the wall 1 is close to the building 2.

Further, in the first embodiment, since the work plate 20 can be installed only by attaching the supporting member 10 to the upper end of the wall body 1, the accessories 1C and 1C are arranged in parallel as shown in FIG. It is possible to assemble the temporary scaffold of the first embodiment on the wall 1.

Although the first embodiment has been described above with reference to the drawings, the specific configuration is not limited to the first embodiment, and even if there are design changes and the like within the scope not departing from the gist of the present invention. Naturally, it is included in this invention.

For example, in the first embodiment of the present invention, the support member 10 is detachably attached to the upper end of the wall body 1.
In particular, the present invention is not limited to this, and an easily removable joining material such as a screw may be used to fix the wall 1 to the upper end.

In the first embodiment, the pins 13 and 13 are used to prevent the work plate 20 from falling off, but the present invention is not limited to this, and ropes, coupling hardware, etc. may be used.

[Second Embodiment] FIG. 4 shows a second embodiment of the present invention.
It is a side view which shows. The temporary scaffold has a structure in which two work plates 40, 40 are attached to the support member 30 as shown in the first embodiment. That is, in the second embodiment, the support portions 32, 32 of the support member 30 are provided on both side surfaces of the wall hanging portion 31 having a U-shaped cross section. At this time, the support part 3
The length of each support portion 32 is adjusted such that the length L2 between the tips of 2, 32 is 400 mm. Further, pins 33, 33 for preventing the work plate 40 from falling off are provided on the contact surface 32A of each support portion 32 in a protruding manner.

The working plate 40 has a long plate-like shape, and its width is approximately 1/2 of the width of the working plate 20 of the first embodiment. The working plate 40 is provided with holes 41, 41 that fit into the pins 33, 33 provided on the support member 30.

The second embodiment is used in the same manner as the first embodiment.

The worker attaches the support members 30 to the upper end of the wall 1 at substantially equal intervals. After this, the worker attaches the holes 4 of the work plate 40 to the pins 33, 33 of the support portion 32 of the support member 30.
1 and 41 are inserted, and the working plate 40 is placed on the support portion 32. This completes the assembly of the scaffold.

By this assembly, the tread surface of each work plate 40 is arranged close to the upper end surface of the wall body 1 and substantially flush with the upper end surface.

Thus, the treads of the two work plates 40 and 40 and the upper end surface of the wall 1 can be used as the work surface of the worker.

Further, in the second embodiment, since the work plates 40, 40 are arranged on both sides of the wall body 1, the width of the work plates 40, 40 can be halved as compared with the first embodiment. As a result, the weight of the work plates 40, 40 is reduced, and the work plates 40, 40
The stress load applied to the joint portion between the support portions 32, 32 for supporting and the wall hanging portion 31 is reduced. As a result, the degree of freedom in designing the cross-sectional shape of the support portion is increased, and the dimension is reduced if the cross-section is of the same shape.

Furthermore, even where the wall 1 is close to the building 2, scaffolds can be assembled without interfering with the building 2.

Although the second embodiment has been described above with reference to the drawings, the specific configuration is not limited to the second embodiment, and even if there is a design change or the like within the scope not departing from the gist of the present invention. Naturally, it is included in this invention.

For example, in the second embodiment of the present invention, the width of the two work plates 32 is the same, but the width of the two work plates is not limited to this. The sum of the width of the upper end surface and the width may be 400 mm.

[0038]

As described above, according to the first aspect of the invention, the work plate is supported on the upper end of the wall body so that the tread surface of the work plate is substantially flush with the upper end surface of the wall body. The work surface of the worker is composed of the tread surface of the work plate and the upper end surface of the wall body. As a result, the width of the work plate can be made narrower than in the conventional case, and the scaffolding can be attached to the wall body that is close to the building or the wall body where the accessories are juxtaposed.

According to the second aspect of the invention, since the work plates are arranged on both sides of the wall body, the work surface is composed of the tread surface of the two work plates and the upper end surface of the wall body. As a result, the width of the work plate can be further reduced, and the weight of each work plate can be reduced.

Furthermore, since a pin is provided on the support portion of the support member of the first and second aspects of the invention and a hole for fitting the pin is provided in the work plate, the work plate is fixed, so that the work is performed. The plate is prevented from falling off.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a side view showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional simple scaffold.

FIG. 6 is a side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall body 1A Wall surface 1B Upper end surface 10 Support member 11 Wall hanging portion 12 Support portion 20 Work plate

Claims (3)

[Claims] 1. A temporary scaffolding attached to an upper end of a wall body, comprising a wall-hanging portion having a recess fitted to the upper end of the wall body, and the wall-hanging portion protruding from one wall surface side of the wall body. A plurality of supporting members each having a supporting portion provided on the wall, and a working plate supported by the supporting portions of the supporting members that are spaced apart from each other at the upper end of the wall body, and a tread surface of the working plate. The temporary scaffolding is supported so that is substantially flush with the upper end surface of the wall body. 2. A temporary scaffolding attached to an upper end of a wall body, comprising a recess fitted to the upper end of the wall body, and provided in the wall hanging portion so as to protrude from both wall surface sides of the wall body. A plurality of support members each including a pair of support portions, a work plate supported by a support portion on one wall surface side of the support member, which is spaced apart from the upper end of the wall body, and an upper end of the wall body. And a work plate supported by a support portion on the other wall surface side of the support member that is spaced apart from the support member, and the tread surface of the work plate is supported so as to be substantially flush with the upper end surface of the wall body. Temporary scaffolding characterized by being. 3. The temporary scaffolding according to claim 1, wherein the support portion is provided with a pin, and a hole into which the pin is fitted is provided in the work plate.