JPH05270765A - Mobile scaffold device for installation of elevator - Google Patents

Abstract

PURPOSE:To provide possibility of opening floor slates installed in stages one over another through winching-up of a rope for opening and facilitate installation and movement of a scaffold device by forming the slabs in double opening structure, and fixing branches of this common opening rope which cart be taken up by a winch, CONSTITUTION:A mobile scaffold 1 is equipped with a vertical pillar 5 and a horizontal frame 6, formed with a height corresponding to a plurality of storeys in an elevator shaft, and supported by a receptacle beam 4 on the corresponding floor at a beam 3 at the uppermost part. A working floor is divided in two segments, and their outer ends are supported rotatably by a shaft, and a rope for opening is fixed to the inner end part. This rope is formed by attaching branches 11 to the main rope 10 which is dangling, and the top of the main rope 10 is wound fast on a winch 12 through a pulley 15. The working floor is opened up by taking up the opening rope 10 with rotation of the winch 12. This scaffold 1 is lifted by a hook 8 of a lifting facility, moved in the elevator shaft, and installed in place.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a mobile scaffold for installing elevator equipment in hoistways.

[0002]

2. Description of the Related Art A conventional moving scaffold for elevator installation will be described with reference to FIGS.

Generally, in the installation of an elevator, a moving scaffold is fixed to an intermediate floor of a building, and the hoistway equipment is attached to the height of the moving scaffold. In particular, in the case of a high-rise elevator, it is general to use the moving scaffolding to sequentially install the equipment in the hoistway from bottom to top according to the construction of the building.

The moving scaffold 1 is composed of a suspension base 2, a beam 3, a receiving beam 4, a vertical column 5, a horizontal frame 6, and a work floor 7.

When the installation work of the equipment for the floors on which the moving scaffold 1 is erected is completed, the main wire passed through the suspension source 2 by the hook 8 of the lifting equipment is moved to the upper floor where the building precedes. The moving scaffolding is lifted to the upper floor via the above, and the beam 3 is fixed by being erected on the receiving beam at the next planned place, and similarly, the work for mounting the equipment in the hoistway within the height range of the moving scaffolding is performed.

Until the final building work of the building is completed, the installation work of the elevator is repeated in the same manner to install the equipment in the hoistway.

[0007]

In the case of the conventional mobile scaffold 1, after mounting the equipment in the hoistway, the mobile scaffold 1 is moved to the upper floor and the working equipment used on the lower floor is lifted. Need to do so. At this time, the lifting hook 8 of the lifting equipment must be removed by removing the work floor 7 and passing through the moving scaffold 1 to descend.

Also, in the case of lifting the equipment installed in the hoistway on the lower floor, the same is true, and the working floor 6 of the moving scaffold is completely removed or partially removed or moved to one side to surely Fall prevention must be fixed.

In such a series of operations, all the workers perform the removal work from the uppermost floor 7 of the moving scaffolding to the lower floor in sequence or moving to one side, and the fixing work for preventing fall.

Since these works are always carried out at a high place in the hoistway, there is a risk of crashing, and the work while moving from the upper part to the lower part in sequence is highly dangerous, and especially the work floor 7 at the bottom. When removing or moving to one side, you must pay close attention to a fall.

In view of the above, it is an object of the present invention to improve the safety of scaffolding work by a work floor removing method that does not require the worker to perform such dangerous work in a moving scaffold.

[0012]

To achieve the above object, the present invention provides a work floor opening device using a rope for opening the work floor of a moving scaffold.

That is, the work floor of the moving scaffold is divided into two parts to form a double door, an open rope is attached to the floor, and the rope is wound by a hoist provided on the upper beam.

[0014]

When the main rope of the open rope is pulled by the hoisting machine by the work floor opening device having the above-mentioned construction, the work floor is pulled and rotated by the branch ropes attached to each floor, and the floor is opened.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on the embodiments shown in FIGS.

The movable scaffold 1 is constructed by a vertical column 5 and a horizontal frame 6 so as to have a height corresponding to a plurality of floors in the hoistway, and the beams 3 are mounted on the receiving beams 4 of the corresponding floors by the uppermost beam 3.

The work floor is divided into two parts, one end of which is supported by a shaft to be rotatable, and the other end of which is provided with an open rope. As for the open rope, the branch rope 11 is attached to the main rope 10 that is hung from the top to the bottom, and the branch rope 11 is attached to the work floor 7 having a double door. The upper end of the main rope 10 is wound around the hoist 12 via a pulley 15.

The hoisting machine 12 comprises an electric motor and a speed reducer,
The rotation of the hoist winds the open rope, and the work floors 7, 7 open upward.

With the above structure, the work floor of the moving scaffold is opened mechanically by driving the hoist, so that the work can be performed safely and reliably.

[0020]

According to the present invention, the working time when using a moving scaffold in a hoistway can be shortened, and safety can be easily ensured. That is, unlike the conventional case, the dangerous work of manually opening the work floor in the moving scaffold is eliminated, the work time can be shortened and the essential safety can be provided, which is a great effect on safety management.

[Brief description of drawings]

1 is a front view of a mobile scaffold according to the present invention, FIG.

FIG. 2 is a front view when the work floor of FIG. 1 is closed.

FIG. 3 is a front view showing a configuration of an open rope.

FIG. 4 is a front view of a conventional mobile scaffold,

5 is an operation explanatory diagram of FIG. 5;

[Explanation of symbols]

 3 ... Beam 4 ... Receiving beam 5 ... Pillar 6 ... Horizontal frame 7 ... Working floor 8 ... Crane lifting hook 10 ... Main rope 11 ... Branch rope

Claims (1)

[Claims] 1. A movable scaffold is constructed by providing a horizontal frame with a floor plate on a plurality of columns having a height of several floors, the number of which corresponds to the number of floors, to form a moving scaffold, the upper beam of which is In a mobile scaffolding device for elevator installation, which is hung on a beam and suspended in a hoistway, the floor plate is formed in a double door, the outer end is supported by a shaft, a rope is attached to the inner end, and each of these floor plates is attached. A mobile scaffolding device for elevator installation, characterized in that the rope is collected and wound around a hoisting machine provided on an upper part of the mobile scaffolding to open a floor board.