JP2000096817A - Temporary scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple temporary scaffold set up on a first floor for improving constructing efficiency in election work. SOLUTION: A temporary scaffold 1 includes a walk plate 2 having a length enough to bridge between foundations A or between sills B and a supporting leg 3 for supporting the walk plate 2 nearly at its longitudinal center on a dirt floor E. The supporting leg 3 is in a detachable form or a foldable form to facilitate handling of the temporary scaffold 1 during transportation and storage.

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 for building a building.

[0002]

2. Description of the Related Art In general, the construction work of a small building such as a house is performed by the following steps.

For example, in the case of a building by the frame construction method, first, a base is fixed on a top end of a foundation, and a through pillar and a first-floor pipe are erected on the base, and they are connected by a body gap or the like. Assemble the frame of the first floor. Next, hang the second-floor floor beam between the body gaps, arrange joists on it, and perform the floor framing,
The second floor is laid on this floor. Subsequently, a second-floor pipe column is erected on the stud, and an eave girder, a hut beam, and the like are connected to the second-floor column and the through column, thereby assembling a frame of the second floor. Furthermore,
Assemble the hut on the frame on the second floor. Normally, the construction work is completed by erection of purlins.

[0004] In the case of a building using a panel construction method, a wall body on each floor is assembled using wall panels that have been assembled in place of pillars such as through pillars and pipe pillars.
The floor is laid by using floor panels that have been assembled in place of floor members such as floor beams. However, the basic work order is the same as in the case of the building by the frame construction method.

[0005]

In the conventional construction work described above, in order to speed up the whole construction work, the floor set on the first floor is provided in the shaft set on the first floor. In order to avoid interference with fitting such as bracing, the shaft assembly on the first floor is assembled before the floor assembly on the first floor. Therefore, when bridging the floor beams on the second floor, the work of connecting the parts while lifting the floor beams on the second floor to a predetermined height and supporting them from below is performed by climbing on a stepladder or the like assembled on the dirt floor. Have to do it. However, the height from the dirt floor to the floor beam on the second floor is the height obtained by adding the floor height on the first floor to the rising height of the foundation, and often exceeds 3 m. For this reason, lifting a heavy member such as a floor beam to that height is a work that requires considerable height, even if a tall stepladder such as a so-called six-foot stepladder is used. There was also a risk of a falling accident.

The present invention has been made in view of such circumstances, and has been made in consideration of the above-mentioned problem. In order to allow the floor beams and the like on the second floor to be installed safely and easily even when the floor on the first floor is not provided.
An object of the present invention is to improve the workability of construction work by providing a simple temporary scaffold installed at a floor position on a floor.

[0007]

A temporary scaffold according to the present invention comprises a step board having a length which can be bridged between a foundation or a base, and the step board is placed on the soil at substantially the center in the length direction. And a support leg that can be supported.

[0008] Before the temporary scaffold is provided on the first floor,
It is bridged between the foundations or the foundations arranged on the foundations,
A support leg is provided substantially at the center of the step board and is supported on the soil. As a result, the work scaffold is secured at substantially the same height as the floor on the first floor, and the floor scaffolding work on the second floor can be performed safely and easily using this as a foothold.

Further, the supporting legs of the temporary scaffold are detachable with respect to the step board, and can be accommodated along the step board when not in use, or are foldable with respect to the step board. It can be.

According to this, the shape of the temporary scaffold when it is not used can be flattened, so that the temporary scaffold can be easily transported and stored.

[0011]

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

FIGS. 1 to 4 show the configuration of each part of the temporary scaffold 1 of the present invention. The temporary scaffold 1 includes an elongated rectangular step board 2 and a pair of support legs 3 for supporting the step board 2.

The step board 2 is made of an aluminum alloy. As shown in FIG. 1, a step surface 22 integrally formed with a peripheral frame member 21 and a center of the lower surface of the step surface 22 are attached along the longitudinal direction. And the longitudinal reinforcing members 23 provided. On the tread surface 22, a large number of anti-slip projections 24 formed in a substantially circular or substantially elliptical shape in plan view are formed on the surface, and are arranged in a staggered manner. A hole 25 is provided at the center of the anti-slip projection 24.

The step board 2 has a length of, for example, 3 m to 4 m.
It is formed to a fixed length of about m and can be bridged between the foundations of the building.

The supporting leg 3 is a round bar or a round pipe made of an aluminum alloy. As shown in FIG. 2 and FIG.
The trim bolt 31 can be screwed into and fixed to the bolt holes 41 and 42 of the support leg mounting portion 4 provided on the lower surface of the step board 2.

The support leg mounting portion 4 is a substantially rectangular parallelepiped member made of an aluminum alloy, and is mounted on the lower surface near both edges of the step board 2 at the center in the length direction of the step board 2. A bolt hole 41 that opens downward and a bolt hole 42 that opens horizontally in the longitudinal direction of the step board 2 are respectively formed in the support leg mounting portion 4, and any of the holes is formed in the support leg 3. The trimming bolt 31 can be screwed in. When the temporary scaffold 1 is used, the support leg 3 can be erected by screwing the cutting bolt 31 of the support leg 3 into the bolt hole 41 that opens downward, and when not in use. The bolt 31 of the support leg 3 is screwed into a bolt hole 42 that opens in the horizontal direction so that the support leg 3 can be stored along the lower side of the step board 2.

In this embodiment, in order to maintain the weight balance of the step board 2 when the support leg 3 is stored when not in use, as shown in FIG. The supporting leg mounting portions 4 are formed so as to open to opposite sides. However, it is also possible to form these bolt holes 42 so as to open on the same side.

Reference numeral 5 denotes a short-side reinforcing member provided for connecting the supporting leg mounting portion 4 and the longitudinal reinforcing member 23.

FIG. 5 shows a working state when a construction work is performed using the temporary scaffold 1. A base B is mounted on the top end of the foundation A, and a through pillar C and a first-stage pipe column D are erected on the base B. Then, the step board 2 of the temporary scaffold 1 is bridged between the bases B and B. At this time, the end of the step board 2 only needs to be placed on the base B, and there is no particular need to fix or join the base B. Then, the two support legs 3 are attached to the support leg attachment portion 4 provided at the center in the length direction of the step board 2, and stand up on the soil space E. By preliminarily forming the length of the support leg 3 so as to be equal to the height from the floor E to the top end of the base B, the walking board 2 can be just horizontal,
And it is supported not to bend even in the middle part. In this way, the step board 2 is erected at the floor position on the first floor while being supported at three places on the base B on both sides and on the middle floor E, and a working scaffold is secured at this position. Become.

At this time, the support leg 3 is set upright on the step board 2 beforehand, and then the step board 2 is mounted on the bases B and B.
It is of course possible to bridge between them.

The temporary scaffold 1 constructed in this manner is used as a foothold, and a stepladder F is further installed thereon to construct a body gap G and a floor beam H on the second floor. Do. As a result, it is possible to obtain a foothold at a position at least several tens of cm higher than in the case where the stepladder F is installed directly on the dirt E as before, and the floor beams H on the second floor can be safely secured. And it can be easily installed.

Next, another embodiment of the temporary scaffold 1 of the present invention will be described with reference to FIGS.

The temporary scaffold 1 is provided with the same step board 2 as described above.
Are supported by a folding support leg 3 '.

At the center in the longitudinal direction of the step board 2, support leg attachment portions 4 'are provided on the lower surface near both edges of the step board 2, respectively. The support leg mounting portion 4 ′ is a member made of an aluminum alloy, has a substantially groove shape that opens downward, and has an upper plate 43 and a pair of hanging plates that are suspended from a pair of opposite sides of the upper plate 43 and face each other. 44 and a stopper plate 45 provided so as to close one end in the groove direction, and are attached with the groove direction facing the longitudinal direction of the step board 2.

On the other hand, the support leg 3 'is a round bar or a round pipe made of an aluminum alloy, and the support leg 3'
A pin hole 32 orthogonal to the axial direction is formed. The pin hole 32 is formed in a long hole shape whose cross section is long in the axial direction of the support leg 3 ′.

The upper end of the support leg 3 'is inserted between the hanging plates 44 of the supporting leg mounting portion 4', and the supporting leg 46 is inserted by the pin hole 32 and the supporting pin 46 penetrating the two hanging plates 44. 4 ', and is rotatably supported by about 90 degrees along the groove direction on the side where the stopper plate 45 is not provided. When the temporary scaffold 1 is used, the support leg 3 ′ is turned vertically by turning, and then the elongated pin hole 3 is formed.
2 is slightly pushed up, and the upper end is brought into contact with the upper plate 43 to be erected. When not in use, the support leg 3 ′ is rotated to be horizontal, then pushed in the direction of the stopper plate 45 along the elongated hole 32, and the upper end is brought into contact with the stopper plate 45. It is stored under the plate 2. In this way, as in the above-described embodiment, a work scaffold can be secured on the soil E, and the temporary work such as the floor beam H on the second floor can be performed safely and easily. 'Can be stored easily.

Also in this embodiment, in order to maintain the weight balance of the step board 2 when the support leg 3 'is stored when not in use, the pair of support leg mounting portions 4' are respectively provided with opposite stop plates. It is preferable that the support legs 3 ′ are formed so that the directions in which the support legs 3 ′ are stored are opposite to each other. According to this, even when the temporary scaffold 1 is used, it is possible to prevent the two support legs 3 ′ from simultaneously falling due to the shaking or wobbling of the step board 2. In order to further enhance safety, a stopper for preventing the fall of the support leg 3 ', which is a well-known mechanism such as a locking pin or a locking claw, is attached to the support leg mounting portion 4'.
Is also preferable.

In the above description, the support legs 3
Although the length of 3 ′ is formed to be equal to the height from the floor E to the top of the base B, depending on the structure of the building and the procedure of the construction work, the base B may be interposed on the foundation A. In some cases, pillars and the like may be directly erected without building. In such a case, the step board 2 is bridged between the top ends of the foundation A, and the length of the support legs 3, 3 'is formed to be equal to the height from the soil E to the top end of the foundation A. And respond.

[0029]

According to the present invention, the temporary scaffold can be bridged between the foundations or the bases before the floor of the first floor is provided, and the substantially center of the step board can be supported on the soil by the support legs. Therefore, it is possible to secure the work scaffold at substantially the same height as the floor on the first floor, and use this as a foothold to safely and easily perform floor work on the second floor.

Furthermore, by making the support legs detachable or foldable, handling during transportation or storage of the temporary scaffold can be facilitated.

[Brief description of the drawings]

FIG. 1 is a top view of a step board of a temporary scaffold according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view in the lateral direction near the center of the temporary scaffold.

FIG. 3 is a longitudinal sectional view in the longitudinal direction near the center of the temporary scaffold.

FIG. 4 is a bottom view near the center of the temporary scaffold.

FIG. 5 is a diagram showing a use state of the temporary scaffold.

FIG. 6 shows a temporary scaffold according to another embodiment of the present invention.
It is a longitudinal cross-sectional view in the lateral direction near the center.

FIG. 7 is a longitudinal sectional view of a temporary scaffold according to another embodiment in the vicinity of the center in the longitudinal direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Temporary scaffold 2 Step board 3, 3 'Support leg A Foundation B Base E Doma

Claims (3)

[Claims] 1. A step board having a length that can be bridged between a foundation or a base, and a supporting leg capable of supporting the step board on the soil at substantially the center in the length direction. Temporary scaffolding that is characteristic. 2. The temporary scaffold according to claim 1, wherein the support leg is detachable from the step board, and can be accommodated along the step board when not in use. 3. The temporary scaffold according to claim 1, wherein the support leg is foldable with respect to the step board.