JPH0834576A - Scaffold device for installing elevator - Google Patents

Abstract

PURPOSE:To prevent a thing from dropping from a story where a scaffold for installing an elevator is erected. CONSTITUTION:A scaffold device is composed of erected column members 5 connected to scaffold fixing members 3 fixed to a hall floor 2, horizontal members 7 fixed to the members 3 and overhanging in an elevator shaft 1, and oblique members 10 connected to the members 3, 7. A drop preventing plate 21 composed of a longitudinal member is fastened to the front surfaces of the scaffold fixing members 3. Thereby the drop preventing plate 21 inhibits a thing from dropping from the hall floor 21 into the elevator shaft 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device installed in a hoistway when an elevator is installed.

[0002]

2. Description of the Related Art FIG. 7 is a vertical cross-sectional side view of a hoistway showing a conventional scaffolding for installing elevators disclosed in Japanese Patent Application No. 4-307034. In the figure, (1)
Is the elevator hoistway, (1a) is the hoistway wall surface, (1b) is the hall wall surface, (1c) is the opening leading from the hall to the hoistway (1), (2)
Is a landing floor, and (3) is an L-shaped scaffolding fixing member fixed to the landing floor (2) with foundation bolts (4).

Reference numeral (5) is a plurality of vertical pillar members arranged in parallel facing the opening (1c). The lower end is fixed to the scaffold fixing member (3) and the upper end is screwed with the bolt (6). The tip of the bolt (6) is in contact with the landing wall surface (1b). (7) is a horizontal member, one end of which is pivotally supported by a vertical column member (5) by a shaft (8) and overhangs in the hoistway (1), on which a scaffolding plate (9) is installed. (10) is a slanting member that is adjustable in the length direction, the lower end of which is a metal fitting.
While abutting against (3), it is connected to the lower part of the vertical column member (5) by a shaft (11), and the upper end is connected to the tip end of the horizontal member (7) by a shaft (12).

Reference numeral (13) is a seat plate which is pivotally supported on the upper end of the tilt member (10) by a shaft (14) and abuts against the hoistway wall surface (1a). The arrow P indicates the load of the operator, the equipment, etc., and indicates the position and direction of the portion on which it acts.

The conventional elevator installation scaffolding device is constructed as described above, and when the workers, tools, equipment, etc. are located on the hoistway wall surface (1a) side of the scaffolding plate (9), the load P is the axis. (1
Since it is located between 2) and the shaft (14), only a load less than the load P is applied to the shaft (12). Further, since the seat plate (13) at the tip of the inclined member (10) is pressed against the hoistway wall surface (1a) to share the load, the shear force applied to the shaft (11) is Horizontal member
It is attached to the tip of (7) and is relaxed compared to the one not pressed against the hoistway wall surface (1a).

Further, since the inclination member (10) has an adjustable length, it can easily come into contact with the L-shaped scaffold fixing member (3). Therefore, even if the shaft (11) is damaged, the tilting member (1
0) is prevented from dropping. In this way, the scaffolding device is highly safe.

[0007]

In the conventional elevator scaffolding for installation as described above, the horizontal member (7) is attached to the standing pillar member (5) standing upright to face the landing opening (1c). Therefore, an object may be dropped carelessly between the vertical pillar members (5) and (5), which may damage the equipment in the hoistway (1) or hit a worker working at the bottom to cause injury. Sometimes. Especially, since the scaffolding device for installation is often assembled on the top floor, it is extremely dangerous to drop an object into the hoistway (1).

In addition, after installing the scaffolding device, when the reference wire is hung down and the guide rail (not shown) is erected over the entire height of the hoistway (1), the reference wire and the guide rail are used as respective members of the scaffolding device. Interference may occur and reassembly may occur, resulting in waste of installation time. Further, when the space between the upright pillar members (5) and (5) is narrowly assembled, there is a problem that the scaffolding device becomes unstable.

The present invention has been made to solve the above-mentioned problems, and prevents objects from falling from the floor where the scaffolding device is assembled, eliminates interference with the reference wire and guide rails, and prevents the opening of each landing. An object of the present invention is to provide a scaffolding device for elevator installation which can be adapted to the width dimension.

[0010]

A scaffolding device for elevator installation according to a first aspect of the present invention is provided with a fall prevention plate composed of a longitudinal member which is fastened to a scaffolding fixing member and arranged at a lower portion of a landing opening. It is a thing.

The elevator scaffolding device according to the second aspect of the present invention is the fall prevention plate according to the first aspect of the present invention, in which a scale indicating the relative position to the landing opening is provided.

The elevator scaffolding device according to a third aspect of the present invention is the fall prevention plate according to the first aspect of the invention, in which a plurality of holes for fastening to the scaffolding fixing member are arranged along the longitudinal direction thereof. .

[0013]

In the first aspect of the present invention, since the fall prevention plate composed of the long member is fastened to the scaffold fixing member, the fall prevention plate prevents an object from falling from the landing floor into the hoistway.

Further, in the second invention, since the fall prevention plate is provided with the scale indicating the relative position to the landing opening,
The fall prevention plate has a centering function.

Further, in the third aspect of the invention, since the fall prevention plate is provided with a plurality of holes for fastening with the scaffold fixing member along the longitudinal direction thereof, the scaffold is fixed at a position corresponding to the width dimension of the landing opening. The fastening position of the member can be set.

[0016]

【Example】

Example 1. 1 to 3 are views showing an embodiment of the first invention of the present invention, FIG. 1 is a vertical sectional side view of a hoistway portion, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a landing floor. It is an enlarged perspective view of a part, and the same parts as those of the conventional device are denoted by the same reference numerals (the same applies to the following embodiments). In the figure, (21) is a scaffold fixing member
This is a fall prevention plate that is fastened to the front surface of (3) with a bolt (22) and is composed of a longitudinal member that is set to be longer than the frontage dimension of the landing opening (1c).

In the elevator scaffolding device constructed as described above, the length of the fall prevention plate (21) is longer than the frontage dimension of the landing opening (1c), and the lower edge thereof is the landing floor.
(2) It almost coincides with the plane. Therefore, tools, dust, and the like that slide on the landing floor (2) surface and fall into the hoistway (1) are blocked by the fall prevention plate (21). Therefore, damage to the equipment in the hoistway (1), injury to workers, etc. can be prevented.

Example 2. 4 and 5 show a second embodiment of the present invention.
FIG. 4 is a view showing an embodiment of the invention, FIG. 4 is a transverse cross-sectional view of a hoistway, and FIG. 5 is an enlarged perspective view of a landing floor portion. In the figure, (21
(a) is a centering scale formed on the fall prevention plate (21) and cut in a V shape, (21b) is holes equidistantly arranged from the scale (21a), and (25) is a landing floor (2). Centerline of frontage dimension of carved landing opening (1c), (26) is a guide rail standing upright in hoistway (1), (27) is inside guide rail (26) and hoistway (1) It is a standard wire that serves as a standard for equipment.

That is, the center line (25) of the hall opening (1c) is marked on the hall floor (2). On the other hand, the hole (21b) of the fall prevention plate (21)
The bolts (22) are inserted through and the scaffold fixing member (3) is fastened.
Then, the scale (21a) is aligned with the center line (25), and the scaffold fixing member (3) is fixed to the landing floor (2) with the foundation bolt (4). with this,
A guide rail (26) standing after the scaffolding device is assembled and a reference wire (27) stretched, a horizontal member (7) and an inclined member (1
It is possible to avoid interference with 0) in advance.

Example 3. FIG. 6 is an enlarged front view of a landing floor portion showing an embodiment of the third invention of the present invention. In this embodiment, a plurality of holes (21b) for fastening the scaffolding fixing member (3) are arranged on the fall prevention plate (21) along the longitudinal direction thereof.

That is, the hole (21b) is selected according to the frontage dimension of the landing opening (1c), and the scaffold fixing member (3) is fastened to the fall prevention plate (21) by the bolt (22). Then, as described above, the scaffolding fixing member (3) is fixed to the landing floor (2), and the pillar member is fixed.
(5) is erected. The frontage size of the landing opening (1c) varies depending on the elevator model, but it can be easily handled by appropriately selecting the hole (21b).

[0022]

As described above, in the first invention of the present invention, since the fall prevention plate composed of the long member is fastened to the scaffold fixing member, the fall prevention plate is attached to the object which is about to fall from the landing floor into the hoistway. Therefore, the equipment in the hoistway can be prevented from being damaged, the worker in the hoistway can be protected, and the safety can be improved.

In the second aspect of the invention, since the fall prevention plate is provided with a scale indicating the relative position to the landing opening, the fall prevention plate has a centering function, and the scaffolding device can be assembled at a desired position. Therefore, there is an effect that it is possible to improve work efficiency by eliminating reassembly due to interference between the scaffolding device, the guide rail and the reference wire.

Further, in the third aspect of the invention, since the fall prevention plate is provided with a plurality of holes for fastening with the scaffold fixing member along the longitudinal direction thereof, the scaffold is fixed at a position corresponding to the frontage dimension of the landing opening. The fastening position of the members can be set, and there is an effect that it can be easily applied to elevators of different models.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a hoistway portion showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged perspective view of a landing floor portion of FIG. 1.

FIG. 4 is a horizontal cross-sectional view of a hoistway showing a second embodiment of the present invention.

5 is an enlarged perspective view of a landing floor portion of FIG. 4. FIG.

FIG. 6 is an enlarged front view of a landing floor portion showing a third embodiment of the present invention.

FIG. 7 is a vertical cross-sectional side view of a hoistway portion showing a conventional scaffolding for elevator installation.

[Explanation of symbols]

1 hoistway, 1c landing opening, 2 landing floor, 3 scaffolding fixing member, 5 standing pillar member, 7 horizontal member, 10 tilting member, 21 fall prevention plate, 21a centering scale, 21b
hole.

Claims (3)

[Claims] 1. A scaffolding fixing member fixed to a landing floor in the vicinity of an opening leading from a landing to a hoistway, a standing pillar member connected to the scaffolding fixing member to stand upright, and the hoisting and lowering connected to the standing pillar member. In a device composed of a horizontal member overhanging in the road and an inclined member whose both ends are respectively connected to the horizontal member and the upright pillar member, the device is fastened to the scaffold fixing member and arranged below the landing opening. An elevator installation scaffolding device comprising a fall prevention plate made of a long member. 2. The scaffolding device for elevator installation according to claim 1, wherein the fall prevention plate is provided with a scale indicating a relative position to the landing opening. 3. The scaffolding device for elevator installation according to claim 1, wherein a plurality of holes for fastening to the scaffold fixing member are arranged along the longitudinal direction of the fall prevention plate.