JP2020084554A - Folding type scaffold - Google Patents

Abstract

To provide a folding type scaffold that can be easily folded and spread even if it is a large-scale type.SOLUTION: The present invention relates to a folding type scaffold which is folded to a storage position from an in-use state when stored, and spread to an installation position when used. The folding type scaffold consists of: a fixed strut; a movable strut which moves between the storage position and the installation position; a left frame and a right frame which are coupled rotatably to the fixed strut and the movable strut; a scaffold plate which is built between the left frame and the right frame and rotates together with the left frame and the right frame; a wire rope which is used to move the movable strut from the installation position to the storage position and also to move the movable strut from the storage position to the installation position; and a drive part which is connected to one end of the wire rope, and takes up and pays off the wire rope to position the movable strut.SELECTED DRAWING: Figure 2

Description

The present invention relates to a foldable scaffold that can be easily folded, folded and deployed even on a large scale.

There are construction sites, such as roads and railways, where scaffolding cannot be installed at all times from the start to the end of construction. Such construction sites require regular scaffolding and disassembly. The work is complicated and causes a long construction period.

Therefore, if there is a scaffold that can be easily assembled and disassembled, it can be expected that the labor load on the worker is reduced and the construction period is shortened.

As such a scaffold, a folding scaffolding device is disclosed in Patent Document 1 and the like. The foldable scaffolding device of Patent Document 1 is a foldable scaffolding device that can be folded more compactly than conventional ones, in which floor plates 5a, 5b and joists 4 are foldable at the center and lateral members 2 at the ends. It has a rotatable structure.

However, the folding scaffolding device of Patent Document 1 does not disclose folding power, and is a small-scale folding and unfolding device by a human hand. Therefore, it is not suitable for large-scale, wide-range scaffolds.

JP, 06-57939, A

Therefore, an object of the present invention is to provide a foldable scaffold that can be easily folded and deployed even on a large scale.

The present invention, in order to solve the above problems,
(1)
It is a foldable scaffold that is folded from the usage state to the storage position when stored and is expanded to the installation position when used.
Fixed stanchions,
A movable column that moves between the storage position and the installation position,
A left frame and a right frame rotatably connected to the fixed column and the movable column,
A cloth plate that is passed over the left frame and the right frame and rotates together with the left frame and the right frame;
A wire rope that moves the movable column from the installation position to the storage position, and moves the movable column from the storage position to the installation position,
A drive unit that connects to one end of the wire rope, winds the wire rope, and positions the movable column by sending out.
A foldable scaffold characterized by consisting of.
(2)
The storage position of the movable column is
A position rotated above the fixed column,
Or
A position rotated below the fixed column,
Alternatively,
It is either a position rotated above or below the fixed column,
The foldable scaffold according to (1), characterized in that
(3)
The foldable scaffold according to (1), wherein the movable column is located at the installation position only by the tension of the wire rope.
(4)
The foldable scaffold according to (1), characterized in that the movable support column is positioned at the installation position by the tension of the wire rope, and the movable support is locked by a position support fitting.
(5)
The foldable scaffold according to (1), wherein the driving unit is a manual winch.
(6)
The foldable scaffold according to (1), wherein the drive unit is an electric motor.
(7)
The foldable scaffold according to (1), wherein the foldable scaffold is installed so as to overlap a running space of a train in a track area.
(8)
The folding scaffold according to any one of (1) to (7),
Installed in the train running space,
While deploying when using scaffolding, while enabling the folding train to run while traveling by train,
Railroad area construction method characterized by performing construction in the railroad area.
(9)
(1) to the storage position of the movable column of the folding scaffold according to any one of (7), the movable column is a position rotated upward or downward,
By fixing the fixed prop to the wall surface having the storage position, when the scaffolding is used, it is expanded from the storage position to form a working environment, and when the scaffolding is not used, it is folded to the storage position to restore the pre-work environment and switch the scaffolding environment. Folding scaffolding method characterized by working while doing.
It has a configuration of.

<Upward storage type>
It is a foldable scaffold that is folded from the usage state to the storage position when stored and is expanded to the installation position when used.
Fixed stanchions,
A movable strut that is pulled up when folding the foldable scaffold and lowered when unfolding,
A left frame and a right frame rotatably connected to the fixed column and the movable column,
A cloth plate that is passed over the left frame and the right frame and rotates together with the left frame and the right frame;
A wire rope that pulls up the movable column from the installation position to the storage position, and lowers the movable column from the storage position to the installation position,
A drive unit that is connected to one end of the wire rope, winds the wire rope when pulling up the movable strut, and sends out the wire rope when lowering the movable strut,
A foldable scaffold characterized by consisting of.
<Upward storage type> Wire rope winding method <br />The other end of the wire rope is connected to a fixed position of the movable support,
A first pulley that changes the direction of the wire rope connected to the drive unit to the drive unit direction and the longitudinal direction of the fixed column;
A second pulley provided on the fixed column above the fixed position and the first pulley, and changing the direction of the wire rope to the first pulley direction and the fixed position direction;
By pulling the movable column from the installation position to the storage position by winding the wire rope by the drive unit,
The foldable scaffold, wherein the drive unit feeds the wire rope to lower the movable support column from a storage position to an installation position.

<Downward storage type>
It is a foldable scaffold that is folded from the usage state to the storage position when stored and is expanded to the installation position when used.
Fixed stanchions,
When the folding scaffold is folded, it is lowered below, and when it is unfolded, the movable strut is raised,
A left frame and a right frame rotatably connected to the fixed column and the movable column,
A cloth plate that is passed over the left frame and the right frame and rotates together with the left frame and the right frame;
A wire rope that lowers the movable column from the installation position to the storage position and pulls the movable column from the storage position to the installation position.
A drive unit that is connected to one end of the wire rope, winds the wire rope when lowering the movable strut, and sends out the wire rope when pulling up the movable strut,
A foldable scaffold characterized by consisting of.
<Downward storage type> Wire rope winding method <br />The other end of the wire rope is connected to a fixed position of the movable support,
A first pulley that changes the direction of the wire rope connected to the drive unit to the drive unit direction and the longitudinal direction of the fixed column;
A second pulley provided on the fixed column above the fixed position and the first pulley, and changing the direction of the wire rope to the first pulley direction and the fixed position direction;
The drive unit lowers the movable support from the installation position to the storage position by sending out the wire rope,
The foldable scaffold, wherein the drive unit winds up the wire rope to pull up the movable column from a storage position to an installation position.

Since the present invention has the above configuration, it has the following effects. It is a folding scaffold that can be easily folded and deployed, and in a work environment where long-term closure is not possible, the scaffold can be quickly removed, the normal environment can be restored, and the scaffold construction can be performed while maintaining the non-work environment function. As a result, the labor load on the workers can be reduced and the construction period can be shortened.

It is an example of the installation place of the folding scaffold which is this invention. It is a right side schematic diagram of an example of installation of the folding scaffold which is the present invention. It is explanatory drawing of the folding system of the folding scaffold which is this invention. FIG. 3A is a rear view from the retaining wall side, and FIGS. 3B to 3C are schematic right side views of the folding process to the storage position by winding the wire rope. It is explanatory drawing of the folding system of the folding scaffold which is this invention. 4A is a rear view from the side of the retaining wall, and FIGS. 4B to 4C are schematic right side views of the folding process to the storage position by winding the wire rope. It is explanatory drawing of the folding and unfolding method of another folding scaffold which is this invention. 5A is a pull-up step view (left side view), and FIG. 5B is a folding step view (left side view).

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the examples below.

The folding scaffold 1 according to the present invention is effective, for example, in use and construction in the track area 23 shown in FIG. 1, more specifically in construction and repair of the retaining wall 21.

In the track area 23, scaffolds are installed so as to overlap with the space required for the train running on the track 22 (running space 24), which obstructs the running of the train, and the running of the train interferes with the construction work.

As shown in FIG. 2-4, the folding scaffold 1 according to the present invention has a fixed support column 3 whose installation position is fixed and does not require rotation, a movable support column 4, a left frame 5 and a right frame 6, A cloth plate 7 on which a worker walks, a wire rope 8 whose tip is fixed to a fixed position 8a of the movable support column 4, a drive unit 9, a first pulley 10, and a second pulley 11, which are used during storage. It is folded from the state to the storage position and deployed to the installation position when used.

If necessary by law, a skirting board 12 and a safety net are provided to connect the fixed support column 3 to the retaining wall 21 and fix the position, and to prevent the workers and tools from falling off, if necessary. 13. Brace and other parts conventionally used for scaffolding.

Further, the fixed column 3 and the movable column 4 may be provided with the jack base 3a at the bottom depending on the installation location. Further, the fixed support column 3 may be divided as shown in FIG.

3 and 4, the cloth plate 7, the skirting board 12, and the safety net 13 are not shown in order to facilitate understanding of the operation and structure. The white arrows in FIGS. 3 and 4 indicate the moving direction of the wire rope 8.

The movable strut 4 is pulled up when folding the folding scaffold and lowered when unfolding.

The left frame 5 and the right frame 6 (in FIG. 2-4, hidden behind the front part and invisible) are rotatably connected to the fixed column 3 and the movable column 4. The cloth plate 7 is passed to the left frame 5 and the right frame 6 and rotates together with the left frame 5 and the right frame 6.

The wire rope 8 raises the movable column 4 from the installation position to the storage position, and lowers the movable column 4 from the storage position to the installation position. Here, one end of the wire rope 8 is connected to the drive unit 9, and the other end is connected to the fixed position 8 a below the movable support column 4.

If the storage position of the movable support column 4 is lower than the installation position, the winding and feeding directions of the wire rope 8 are opposite to those in the case above the installation position for storage and installation (FIG. 5). When the movable column 4 is installed and the storage space 15 is formed below the movable column 4, the movable column 4 may be positioned only by the tension of the wire rope 8.

Further, when the cloth plate 7 is provided with a position support metal fitting for fixing (locking) the position of the cloth board 7, for example, a brace 14 (FIG. 5) for diagonally connecting the cloth board 7 and the fixed support column 3, and an L-shaped metal fitting, the cloth board 7 can be walked. However, the vertical swaying is reduced and the safety of the scaffolding is increased. The shapes of the brace 14, the L metal fittings, and the connecting means are not particularly limited. A method that can be attached and detached with one touch is desirable.

The drive unit 9 is connected to one end of the wire rope 8 and winds the wire rope 8 when the movable support column 4 is pulled up from the installation position to the storage position, and when the movable support column 4 is lowered from the storage position to the installation position. Send out. The drive unit 9 may be a manual winch operated manually, an electric motor, or the like, and one unit may be installed in a group of a plurality of fixed columns 3 and movable columns 4.

The first pulley 10 is provided here at the bottom of the fixed column 3, and changes the direction of the wire rope 8 connected to the drive unit 9 between the drive unit 9 direction and the longitudinal direction of the fixed column 3. It is desirable that the first pulley 10 and the wire rope 8 be surrounded by a case, a frame, etc. so that the wire rope 8 does not fall off from the first pulley 10 when the wire rope 8 is wound, fed out, or used in a scaffold. 11 is also the same.

The second pulley 11 is provided on the fixed column 3 above the fixed position 8a and the first pulley 10, and turns the wire rope 8 in the first pulley direction and the fixed position 8a direction.

With the foldable scaffold 1 having the above configuration, the normal environment (scaffold storage) and the work environment (scaffold installation) can be easily switched in a short time. Therefore, the normal environment is blocked and a long-term work environment is not secured. Both will allow construction work. Therefore, it is possible to reduce the construction work and shorten the construction period, and to eliminate or minimize the influence on the normal environment when the construction is difficult and has a large influence on the scaffolding installation state for a long time.

1 Folding Scaffold 2 Connecting Tool 3 Fixed Strut 3a Jack Base 4 Movable Strut 5 Left Frame 6 Right Frame 7 Cloth Plate 8 Wire Rope 8a Fixed Position 9 Drive Unit 10 First Pulley 11 Second Pulley 12 Baseboard 13 Safety Net 14 Brace 15 Storage space 21 Retaining wall 22 Track 23 Track area 24 Traveling space

Claims (9)

It is a foldable scaffold that is folded from the usage state to the storage position when stored and is expanded to the installation position when used.
Fixed stanchions,
A movable column that moves between the storage position and the installation position,
A left frame and a right frame rotatably connected to the fixed column and the movable column,
A cloth plate that is passed over the left frame and the right frame and rotates together with the left frame and the right frame;
A wire rope that moves the movable column from the installation position to the storage position, and moves the movable column from the storage position to the installation position,
A drive unit that connects to one end of the wire rope, winds the wire rope, and positions the movable column by sending out.
A foldable scaffold characterized by consisting of. The storage position of the movable column is
A position rotated above the fixed column,
Or
A position rotated below the fixed column,
Alternatively,
It is either a position rotated above or below the fixed column,
The foldable scaffold according to claim 1, wherein. The folding scaffold according to claim 1, wherein the movable support column is located at the installation position only by the tension of the wire rope. The folding scaffold according to claim 1, wherein the movable support column is positioned at the installation position by the tension of the wire rope, and the movable support is locked by a position support fitting. The folding scaffold according to claim 1, wherein the driving unit is a manual winch. The folding scaffold according to claim 1, wherein the driving unit is an electric motor. The foldable scaffolding according to claim 1, wherein the foldable scaffolding is installed so as to overlap a running space of a train in a track area. The folding scaffold according to any one of claims 1 to 7,
Installed in the train running space,
While deploying when using scaffolding, while enabling the folding train to run while traveling by train,
Railroad area construction method characterized by performing construction in the railroad area. The storage position of the movable support of the folding scaffold according to any one of claims 1 to 7 is a position in which the movable support is rotated upward or downward,
By fixing the fixed prop to the wall surface having the storage position, when the scaffolding is used, it is expanded from the storage position to form a working environment, and when the scaffolding is not used, it is folded to the storage position to restore the pre-work environment and switch the scaffolding environment. Folding scaffolding method characterized by working while doing.

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