JPH08165791A - Vertically movable type scaffold - Google Patents

Abstract

PURPOSE: To facilitate the work of assembling a scaffold at the time when a wall surface is painted or repaired, by operating winches, left and right, with respective switches through wire ropes with which both ends of a trestle bridged between posts, left and right, are suspended. CONSTITUTION: Proper sized members for posts 12 and a trestle 13 are selected, are carried in a construction site in a disassembled state, and are assembled along the wall surface of a building, and a beam 23 is bridged between the top ends of a pair of the posts 12, 12 and is fastened thereto. After that, each of the posts 12 is fastened to the building with rope, using the hole of an intermediate flange and the handrail or the like of a veranda, following which the trestle 13 is adjusted at a desired height by operating switches 20, 20 after a scaffold 11 is assembled and fastened, and each wall part of the posts 12, 12 is held between a slidable piece 14 and a bracket 16 for the trestle 13, and thus the trestle 13 is fastened at its position. In this way, the trestle 13 is adjusted at the desired height and constructing operations are done. When the next operations are started after these operations, the trestle 13 is readjusted at a desired height. After these operations are finished, the scaffold 11 is taken apart to the posts 12, 12 and trestle 13, and they are removed from the construction site.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertically movable scaffold used for painting, repairing, sashing, sheet metal working, plastering, carpentry, etc. on the wall surface of a building.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a scaffold (3) is assembled from a ground G along a wall surface (2) of a building (1), and the scaffold (3)
A worker (4) was on board to perform work such as painting and repairing the wall surface (2).

[0003]

However, in the above-mentioned conventional methods, it is troublesome to assemble and remove the scaffold, secure a place necessary to assemble the scaffold, a storage place for the scaffold material, or transportation of the scaffold material, etc. There were many problems.

[0004]

As a means for solving the above-mentioned conventional problems, the present invention provides a pair of left and right columns (12, 12).
And a mount (13) that is passed between the columns (12, 12), and the mount
A pair of wires (18, 18) for suspending both ends of (13) and the column
(12,12) Pulleys (17,17) mounted on the upper ends and on which the pair of wires (18,18) are respectively suspended, and the pair of wires (1
A pair of winches (19,19) that wind up each root end of
Each of the pair of winches (19, 19) is actuated by a separate switch (20, 20), and the pair of struts (1
2, 12) and the platform (13) provide a vertically movable scaffold (11) that can be disassembled.

[0005]

[Operation] A prop (12, 1
Select 2) and the pedestal (13), bring them to the site in the disassembled state, and assemble them. Each pair of winches (19,19) is actuated by a separate switch (20,20) to wind each of the wires (18,18) around the winches (19,19) and the gantry (13) is raised to a suitable height. The winches (19, 19) are operated independently by the switches (20, 20) even if there is a difference in height between the ground G on which the left and right columns (12, 12) are installed. The mount (13) can be horizontal. After the work is completed, the pillar (12,
Disassemble into 12) and pedestal (13) and remove from the site.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 6. A vertically movable scaffold (11) shown in the drawing comprises a pair of left and right columns (12, 12) and a pedestal (13). As shown in FIG. 3, the columns (12, 12) have a C-channel shape, and the pedestal (13)
A handrail (13A) is erected from the front edge of the. The post (1
The sliding piece (14) is inserted inside the (2, 12), and the sliding piece (14)
Brackets on both ends of the frame (13) with bolts (15)
(16) is fixed. The sliding piece (14) is suspended on a wire (18) suspended on a pulley (17) at the upper end of the column (12), and the root end of the wire (18) is hung by a winch (19). It is wound up. As shown in FIG. 4, the winch (19) has a motor (19A) and a worm gear on the rotation shaft of the motor (19A).
(19B) and a wire winding roll (19D) connected through a spur gear (19C), and the winch (19, 19)
Each of the is independently activated by a switch (20,20). Further, a flange (21) provided with a hole (22) is attached to the upper ends of the columns (12, 12) and predetermined places in the middle part.

The vertically movable scaffolding (11) having the above-described structure has columns (12,
It is disassembled into 12) and the pedestal (13) and stored or transported.
Various sizes of the columns (12, 12) and the pedestal (13) are prepared, and those having an appropriate size are selected according to the situation of the site and carried into the site in a disassembled state, and the building ( Assemble along the wall surface (2) of 1) as shown in FIGS. 1 and 2.
And, if desired, a beam (23) is provided at the upper end of the pair of columns (12, 12).
And secure both ends of the beam (23) with bolts (24) and nuts (not shown) through the holes (22) of the flange (21) at the upper end of the columns (12, 12) as shown in FIG. Also, as shown in FIGS. 2 and 3, the rope (25) is fixed using the hole (22) of the intermediate flange (21) and the handrail (6) of the veranda (5) of the building (1), for example. To do.

After the scaffold (11) is assembled and fixed in this way, the worker (4) rides on the pedestal (13) and operates the switches (20, 20) to operate the winches (19, 19), and the wire ( Winding or unwinding (18,18) around the winch (19,19) to mount (13)
Move up and down to adjust to the desired height. Stand at a predetermined height
After adjusting (13), tighten the bolt (15) shown in Fig. 3 to support the column.
Attach the wall of (12, 12) to the sliding piece (14) and the bracket (1
6) Press with and to fix in that position. For example, as shown in Fig. 6, even if there is a difference in height on the ground G where the left and right columns (12,12) are installed, the left and right winches (19,19) can be operated independently by the respective switches (20,20). Because you can
The mount (13) can be kept horizontal.

After the pedestal (13) is adjusted to a predetermined height in this way, work is performed, and when the work is finished, the bolt (15) shown in FIG. 3 is loosened and the switch is turned on again. Operate (20, 20) to adjust the pedestal (13) to a predetermined height. When the work is completed, the scaffold (11) is fixed to the columns (12, 12) and the pedestal.
(13) Disassemble and remove from the site.

[0010]

Therefore, according to the present invention, a scaffold for painting and repairing a wall surface of a building can be assembled very easily, and the space required for installing the scaffold and the storage space for the scaffold material can be minimized. Good and easy to carry, scaffolding can be assembled even if there is a difference in height on the ground.

[Brief description of drawings]

 1 to 6 show an embodiment of the present invention.

FIG. 1 is a front view

[Figure 2] Side view

[Figure 3] Partial cross-section of the support

FIG. 4 Explanatory drawing of winch

[Figure 5] Top view of the upper end of the column

[Fig. 6] An explanatory view of scaffolding assembly when there is a difference in height on the ground

FIG. 7 is a conventional explanatory diagram.

[Explanation of symbols]

 11 Scaffold 12 Strut 13 Stand 17 Pulley 18 Wire 19 Winch 20 Switch

Claims (1)

[Claims] 1. A pair of left and right struts, a gantry bridged between the stanchions, a pair of wires for suspending both ends of the gantry, and a pulley attached to the upper end of the stanchion for suspending each of the pair of wires. And a pair of winches for winding the root end of each of the pair of wires, each of the pair of winches being operated by a separate switch, and the pair of columns and the mount being disassembled. Up and down movable scaffold characterized by