WO2019207654A1

WO2019207654A1 - Work floor apparatus for elevator and assembly method therefor

Info

Publication number: WO2019207654A1
Application number: PCT/JP2018/016655
Authority: WO
Inventors: 央至古澤
Original assignee: 三菱電機株式会社
Priority date: 2018-04-24
Filing date: 2018-04-24
Publication date: 2019-10-31
Also published as: JP6854970B2; CN111989283A; JPWO2019207654A1

Abstract

A work floor apparatus for an elevator, wherein a work floor device body is supported inside an elevator shaft by an upper support member and a lower support member. The upper support member is fixed above a landing entrance to an elevator shaft wall by a plurality of upper anchor bolts. The lower support member is fixed below the landing entrance to a front wall surface, which is the wall surface that intersects with a landing floor of the elevator shaft wall, by a plurality of lower anchor bolts.

Description

Elevator work floor apparatus and assembly method thereof

The present invention relates to an elevator work floor apparatus installed in a hoistway and an assembling method thereof.

As a structure of a conventional elevator work floor device, a structure in which a part of the load is supported by the landing wall and a structure in which a part of the load is supported by the landing floor are known (for example, see Patent Document 1). In addition, as another conventional work floor device structure, there is also a structure in which a column is fixed between the landing floor and the upper edge of the landing entrance, and a part of the load is supported by the back wall of the hoistway facing the landing entrance. It is known (see, for example, Patent Document 2).

Japanese Patent Laying-Open No. 2015-6944 JP-A-8-301549

Among the conventional work floor devices as described above, the work floor device that supports a part of the load with the landing wall is when the landing wall is constituted by a board and when the surface of the landing wall is a design surface Can not be applied because it may damage the landing wall.

In addition, work floor devices that support a part of the load on the landing floor can be used when the landing floor is composed of ALC (lightweight aerated concrete autocured) and when the surface of the landing floor is a finished surface. It cannot be applied because it can damage the floor.

Also, the work floor device of Patent Document 2 cannot be applied depending on the material of the landing wall and the landing floor because the column is fixed between the landing floor and the upper edge of the landing entrance.

The present invention has been made to solve the above-described problems, and an object thereof is to obtain an elevator work floor device capable of suppressing damage to a landing wall and a landing floor, and an assembling method thereof. .

An elevator floor device according to the present invention includes an upper support member fixed to a hoistway wall by a plurality of upper anchor bolts above a landing doorway, and a hoistway wall by a plurality of lower anchor bolts below the landing doorway. A lower support member fixed to a front wall surface that is a wall surface intersecting with the landing floor, and a work floor device main body supported in the hoistway by the upper support member and the lower support member.

In the elevator work floor apparatus according to the present invention, the upper support member and the lower support member are fixed to the hoistway wall, so that damage to the landing wall and the landing floor can be suppressed.

It is a side view which shows the work floor apparatus of the elevator by Embodiment 1 of this invention. It is a front view which shows the work floor apparatus of FIG. It is a side view which shows the state in the middle of the assembly of the work floor apparatus of FIG. It is a side view which shows the work floor apparatus of the elevator by Embodiment 2 of this invention. It is a front view which shows the work floor apparatus of FIG.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a side view showing a work floor device for an elevator according to Embodiment 1 of the present invention. FIG. 2 is a front view showing the work floor device of FIG. FIG. 1 is a right side view of FIG. FIG. 2 is a view taken along the arrow II in FIG.

In the figure, the hoistway 1 is a space surrounded by the hoistway wall 2. A landing wall 3 is provided between the multi-floor hall and the hoistway 1. A landing doorway 4 is provided on the landing wall 3 of each landing. The hall entrance 4 connects the hall and the hoistway 1. In FIG. 2, the landing wall 3 is omitted.

The hoistway wall 2 has a back wall surface 2a, a front wall surface 2b, a right wall surface 2c, and a left wall surface 2d. The back wall surface 2 a is a wall surface facing the hall entrance 4. The front wall surface 2 b is a wall surface that faces the back wall surface 2 a and intersects the landing floor 5.

The right wall surface 2c is the right wall surface when the hoistway 1 is viewed from the landing entrance 4. The left wall surface 2d is the left wall surface when the hoistway 1 is viewed from the landing entrance 4. The right wall surface 2c and the left wall surface 2d face each other.

The work floor apparatus of Embodiment 1 is installed across the hall on the top floor and the hoistway 1. Further, the work floor device has an upper support member 11, a lower support member 12, and a work floor device main body 13.

The upper support member 11 is installed in the hoistway 1 above the hall entrance 4 on the top floor. That is, the upper support member 11 is disposed at the top in the hoistway 1. The upper support member 11 is a bar-like member parallel to the width direction of the hall entrance 4.

The first end portion in the longitudinal direction of the upper support member 11 is fixed to the right wall surface 2c by a plurality of first upper anchor bolts 14. A second end portion in the longitudinal direction of the upper support member 11 is fixed to the left wall surface 2d by a plurality of second upper anchor bolts 15.

The lower support member 12 is fixed to the front wall 2b below the hall entrance 4 on the top floor. Further, the lower support member 12 is fixed to the front wall surface 2 b by a plurality of lower anchor bolts 16.

Further, the lower support member 12 has a flat plate-like vertical portion 12a fixed to the front wall surface 2b, and a flat plate-like protrusion portion 12b protruding from the vertical portion onto the landing floor 5 at a right angle. The vertical position of the protruding portion 12b with respect to the vertical portion 12a can be adjusted.

In FIG. 1, the corner between the landing floor 5 and the front wall 2b is hung when an existing sill groove (not shown) is removed. The vertical position of the projecting portion 12b with respect to the vertical portion 12a is adjusted according to the depth of the suspended portion 5a.

The work floor apparatus main body 13 is supported in the hoistway 1 by the upper support member 11 and the lower support member 12. The work floor apparatus main body 13 includes a base portion 21, a vertical column portion 22, a scaffold portion 23, a trap 24, a pair of oblique members 25, a pair of scaffold support members 26, and a handrail portion 27.

The base part 21 is connected to the projecting part 12b and placed on the landing floor 5.

The vertical column portion 22 is connected between the base portion 21 and the upper support member 11. Further, the vertical column portion 22 includes a pair of lower columns 31, a pair of upper columns 32, and a pair of U-shaped connection members 33.

The lower support pillars 31 are erected vertically on the base portion 21 at intervals in the width direction of the hall entrance 4. The lower end portion of each lower column 31 is connected to the base portion 21.

The upper struts 32 are arranged at intervals in the width direction of the hall entrance 4. Further, the upper end portion of each upper column 32 is connected to the upper support member 11.

Each connection member 33 is fixed to the lower end portion of the corresponding upper column 32 by welding or the like. Each connecting member 33 is connected to the upper end portion of the corresponding lower column 31 at two locations spaced apart from each other in the vertical direction. Each connection member 33 is disposed across the hall entrance 4. That is, each connection member 33 is disposed across the landing and the hoistway 1.

The scaffold portion 23 is disposed horizontally in the hoistway 1 above the landing floor 5. The scaffold portion 23 includes a pair of horizontal beams 34, a scaffold plate 35, and a baseboard 36.

The scaffold plate 35 is supported by a pair of horizontal beams 34. The skirting board 36 surrounds the periphery of the scaffold board 35 except for the entrance to the scaffold board 35.

The trap 24 is connected between a portion below the scaffold portion 23 of the vertical column portion 22 and a pair of horizontal beams 34. Further, the upper end portion of the trap 24 is connected to the end portion on the landing entrance 4 side of the pair of horizontal beams 34. The worker moves between the landing floor 5 and the scaffolding plate 35 using the wrapping 24.

The pair of cable-stretch members 25 are connected between a portion above the scaffold portion 23 of the vertical column portion 22 and the pair of horizontal beams 34. In this example, the upper end portion of each cable-stretching member 25 is connected to the upper end portion of the corresponding lower column 31. Further, the lower end portion of each cable-stretching member 25 is connected to the end portion on the landing entrance 4 side of the corresponding horizontal beam 34.

The pair of scaffolding support members 26 are disposed obliquely between the vertical column portion 22 and a portion farther from the landing entrance 4 than the connection portion between the pair of horizontal beams 34 and the trap 24. The pair of scaffold support members 26 is connected to a portion below the scaffold part 23 of the vertical column part 22.

Among the members constituting the work floor apparatus main body 13, a pair of lower columns 31, a pair of upper columns 32, a pair of connecting members 33, a pair of horizontal beams 34, a trap 24, a pair of cable-stretch members 25, and a pair of scaffolds The support member 26 functions as a strength member. Due to the plurality of triangular structures formed by these strength members, the load acting on the scaffold portion 23 is distributed and supported by the upper support member 11 and the lower support member 12.

A pair of reinforcing members 28 are provided between the pair of scaffold support members 26. The pair of reinforcing members 28 are arranged so as to cross each other.

The handrail portion 27 is fixed on the scaffold portion 23. In addition, the handrail portion 27 surrounds the space above the scaffold portion 23 on the entire circumference. However, a gate that can be opened and closed is provided at the entrance to the scaffolding 23.

In such an elevator work floor device, since the upper support member 11 and the lower support member 12 are fixed to the hoistway wall 2, damage to the landing wall 3 and the landing floor 5 can be suppressed.

Moreover, since the upper support member 11 is fixed to the right wall surface 2c and the left wall surface 2d, the upper support member 11 can be stably fixed in the hoistway 1. Further, the present invention can be easily applied to an elevator of a type in which a counterweight is disposed at the rear of the elevator lifting / lowering area as compared with the case where the upper support member 11 is fixed to the rear wall surface 2a.

Further, since the vertical position of the protrusion 12b with respect to the vertical portion 12a can be adjusted, it is possible to easily cope with the presence or absence of the hanger 5a and the difference in the depth of the hanger 5a on site.

Further, since the trap 24 and the oblique member 25 are connected between the vertical column portion 22 and the scaffold portion 23, the load acting on the scaffold portion 23 is stabilized by the upper support member 11 and the lower support member 12. Can be supported.

Further, since the scaffold support member 26 is connected between the scaffold part 23 and the vertical column part 22, the load acting on the scaffold part 23 can be supported more stably.

Next, FIG. 3 is a side view showing a state during the assembly of the work floor device of FIG. For example, when an elevator renewal work is performed, an operator gets on an existing car 6. Then, the upper support member 11 and the lower support member 12 are fixed to the hoistway wall 2 and at least part of the assembly of the work floor apparatus main body 13 is performed from above the car 6.

When the upper support member 11 is fixed to the hoistway wall 2, the first upper anchor bolt 14 is driven into the right wall surface 2c and the second upper anchor bolt 15 is driven into the left wall surface 2d. Further, when the lower support member 12 is fixed to the hoistway wall 2, the lower anchor bolt 16 is driven into the front wall surface 2b.

In the assembly work of the work floor apparatus main body 13, the worker on the car 6 supports or connects the parts of the work floor apparatus main body 13.

Although omitted in FIG. 3, an existing hoisting machine for raising and lowering the car 6 is installed at a position that does not interfere with the car 6 in the hoistway 1. By driving this hoisting machine and raising and lowering the car 6, it is possible to work at different vertical positions in the hoistway 1.

It is efficient that the assembly work of the work floor apparatus main body 13 is performed by the worker on the landing on the top floor and the worker on the car 6.

After the assembly of the work floor device is completed, the existing elevator device is removed and the new elevator device is installed using the work floor device. Examples of existing elevator equipment to be removed include a car 6, a counterweight, a hoisting machine, and a rope.

Work floor equipment will be removed at the end of construction. The removal work of the work floor device can also be performed by an operator getting on the new car.

According to such a method for assembling the work floor device, the work floor device can be installed more efficiently.

Embodiment 2. FIG.
Next, FIG. 4 is a side view showing a work floor device for an elevator according to Embodiment 2 of the present invention. FIG. 5 is a front view showing the work floor device of FIG. FIG. 4 is a right side view of FIG. FIG. 5 is a view taken along the arrow V in FIG.

In the second embodiment, the position of the connecting portion of the scaffold support member 26 to the vertical column portion 22 is different from that in the first embodiment. That is, the scaffold support member 26 of the second embodiment is connected to a portion above the scaffold portion 23 of the vertical column portion 22. In this example, the scaffold support member 26 is connected to the upper column 32. Other configurations and assembly methods are the same as those in the first embodiment.

Even with such a work floor device, the same effect as in the first embodiment can be obtained.

In the first and second embodiments, the upper support member 11 is fixed to the right wall surface 2c and the left wall surface 2d. However, the upper support member 11 may be fixed to another wall surface of the hoistway wall 2.

Further, the specific configuration of the work floor apparatus main body 13 is not limited to the first and second embodiments.

Also, the work floor apparatus of the present invention can be installed on other than the top floor.

Further, the work floor device of the present invention may be used for other than renewal work.

1 hoistway, 2 hoistway wall, 2b front wall, 2c right side wall, 2d left side wall, 4 landing entrance, 5 landing floor, 6 cage, 11 upper support member, 12 lower support member, 12a vertical portion, 12b protrusion, 13 Work floor device main body, 14 First upper anchor bolt, 15 Second upper anchor bolt, 16 Lower anchor bolt, 21 Base part, 22 Vertical column part, 23 Scaffold part, 24 Tarup, 25 Oblique member, 26 Scaffold Support member.

Claims

An upper support member fixed to the hoistway wall by a plurality of upper anchor bolts above the landing entrance,
A lower support member fixed to a front wall surface that intersects the landing floor of the hoistway wall by a plurality of lower anchor bolts below the landing doorway, and lifted by the upper support member and the lower support member A work floor device for an elevator equipped with a work floor device body supported in a road.
The upper support member is fixed to a right wall surface that is a right wall surface of the hoistway wall and a left wall surface that is a left wall surface of the hoistway wall when the hoistway is viewed from the landing entrance. The work floor apparatus for elevators according to 1.
The lower support member has a vertical portion fixed to the front wall surface, and a protruding portion protruding from the vertical portion onto the landing floor,
The work floor apparatus for an elevator according to claim 1 or 2, wherein the vertical position of the protruding portion with respect to the vertical portion is adjustable.
The work floor apparatus main body is:
A base portion connected to the lower support member and placed on the landing floor;
A vertical column connected between the base and the upper support member;
A scaffold portion disposed horizontally in the hoistway;
A tarp connected between the scaffold portion and a portion below the scaffold portion of the vertical column portion;
The elevator according to any one of claims 1 to 3, further comprising: a cable-stretching member connected between a portion of the vertical column portion above the scaffold portion and the scaffold portion. Work floor equipment.
The work floor apparatus main body further includes a scaffold support member that is disposed obliquely between a portion of the scaffold part that is farther from the landing doorway than a connection part with the trap and the vertical column part. And
The elevator working floor device according to claim 4, wherein the scaffold support member is connected to a portion of the vertical column portion that is lower than the scaffold portion.
The work floor apparatus main body further includes a scaffold support member that is disposed obliquely between a portion of the scaffold part that is farther from the landing doorway than a connection part with the trap and the vertical column part. And
The elevator work floor device according to claim 4, wherein the scaffold support member is connected to a portion of the vertical column portion that is above the scaffold portion.
It is an assembly method of the work floor apparatus of the elevator of any one of Claim 1- Claim 6,
A method for assembling a work floor device for an elevator, wherein fixing of the upper support member and the lower support member to the hoistway wall and at least a part of the assembly of the work floor device main body are performed on a car.