JP3328158B2 - Lifting device for elevator installation and method of assembling the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used at the time of installing an elevator for performing work in a hoistway using a car in a temporary state as a working scaffold, and the car is raised and lowered by driving a self-propelled hoist. The present invention relates to a lift device for elevator installation and a method of assembling the same.

[0002]

2. Description of the Related Art Heretofore, as an elevator device of this type for elevator installation, for example, Japanese Patent Application Laid-Open Nos. 58-47883, 61-45876 and 61-200 have been disclosed.
As disclosed in Japanese Unexamined Patent Publication No. 877, a winch for winding a wire rope is installed at a lower part of a hoistway, and the wire rope is wound around a pulley installed at an upper part of the hoistway, and one end of the winch is placed on an upper part of a car. And a car is lifted in a hoistway by winding a wire rope with the winch.

[0003] However, in the elevator installation elevator, it is necessary to wind the wire rope with a winch installed at the lower part of the hoistway, and to wind the wire rope around a pulley installed at the upper part of the hoistway. When installing an elevator for a skyscraper that goes up and down to above, the wire rope cannot be wound up because the wire rope becomes so long that it exceeds the limit of the winch winding ability. There is a problem that it cannot be applied to an elevator for a high-rise building.

[0004] Conventionally, as one means for solving such a conventional problem, for example, JP-A-57-17562, JP-A-60-21736, and JP-A-5-70.
As described in Japanese Unexamined Patent Publication No. 0555 and Japanese Unexamined Patent Application Publication No. Hei 7-237847, a wire rope is hung from the upper part of the hoistway, and a self-propelled hoist that engages with the wire rope is placed on the upper part of the car. Elevators for elevator installation, in which a car is lifted and lowered in a hoistway using a wire rope as a guide by driving a self-propelled hoist.

[0005] In this conventional elevator installation elevator, when performing work in the hoistway, the worker gets on the work floor located above the car or the car floor located below the car. ing. Also, if the self-propelled hoist cannot be lifted or lowered for any reason such as a power outage or failure, the worker opens the brake unit provided on the self-propelled hoist and operates the car under its own weight or manual operation. , The worker escapes from the car to the landing on the predetermined floor.

[0006]

By the way, in the above-mentioned conventional elevator installation elevator, the self-propelled hoist is installed at the upper part of the car, so that the worker is placed on the car floor located at the lower part of the car. If the operator gets on the car floor, the worker on the car floor cannot operate the brake unit of the self-propelled hoist, that is, the worker lowers the car by himself and escapes from the car. There is a problem that it is not preferable because it cannot be performed.

The present invention has been made in view of such a situation in the prior art, and its main purpose is to make it possible to prevent a power failure or a failure from occurring even if the passenger gets on the working floor or the car floor of a car. It is an object of the present invention to provide an elevator installation elevator that enables a worker to escape from a car by himself / herself.

It is another object of the present invention to provide a method of assembling an elevator installation elevator which can improve the working efficiency when assembling the elevator.

[0009]

Means for Solving the Problems In order to achieve the main object, the invention according to claim 1 of the present invention comprises a hoistway, a hoistway, a frame, and a lower part of the frame. A car floor comprising a car floor, and a work floor consisting of a work floor attached to the upper part of the frame body, an elevator installation elevating device for installing equipment in the hoistway as a work scaffold, A rope suspended from the top of the hoistway; and a self-propelled hoist disposed on the car so as to be located at an intermediate portion between the car floor and the work floor. above machine comprises a drive unit which also comprises a handle for rotating manually while the electric rotating engaged with the ropes, and a brake portion for supporting the passenger cage to the rope when it stops the passenger cage , The rotation of the drive unit using the rope as a guide. It is the structure for elevating the passenger cage by.

In the invention according to claim 1 of the present invention constructed as described above, the self-propelled hoist is provided so as to be located between the car floor of the car and the work floor. The operator can operate the self-propelled hoist from either the working floor or the car floor, and by opening the brake unit of the self-propelled hoist in an emergency such as a power failure or failure, ,
The car is lowered to the predetermined floor by its own weight. Accordingly, the worker can escape from the car by himself in the event of an emergency such as a power outage or failure, regardless of whether the user gets on the work floor or the car floor of the car. In addition, the self-propelled hoist brake
Despite the opening operation of the part, the car is under its own weight
When not descending, self-propelled by manual operation of the handle
The drive unit of the hoist is rotated. This ensures that you get on
You can go up and down to the nearest floor.

[0011]

[0012]

[0013] The invention according to claim 2 of the present invention, in the invention according to claim 1, said working floor, the brake unit or the brake unit and the openable opening is located above the handle It has a configuration in which a portion is formed.

According to the second aspect of the present invention constructed as described above, when an operator gets on the work floor above the car, the worker opens the work floor and puts his hand through the opening to self-propelled. Manual operation of the hoist. Thus, even when the worker gets on the work floor above the car, the car can be easily raised and lowered to the nearest floor.

Further, in order to achieve the above-mentioned other object, the invention according to claim 3 of the present invention provides a hoistway, a hoistway which moves up and down in the hoistway, a frame, and a car attached to a lower portion of the frame. A method for assembling an elevator-installing elevator device, comprising: a floor, and a car having a work floor attached to an upper portion of the frame body, and installing the equipment in the hoistway using the car as a work scaffold. A rope is hung from the top of the hoistway, the car floor is attached to the lower part of the frame, and a self-propelled hoist that moves up and down using the rope as a guide is attached to the lower surface of the work floor. By engaging the rope with a traveling hoist and driving the self-propelled hoist, the working floor is raised to a height position above the frame, and the work floor and the frame are moved upward. To connect to the upper part of Are you.

In the invention according to the third aspect of the present invention, a self-propelled hoist can be installed at the same time when the work floor and the frame are connected to each other. The work efficiency when assembling can be improved.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an elevator apparatus for assembling an elevator according to the present invention; FIG. 1 is a front view showing a lift device for elevator installation according to one embodiment of the present invention, FIG. 2 is a perspective view of a self-propelled hoist provided in the lift device of this embodiment, and FIG. FIG. 4 is a perspective view showing a state where the work floor is attached to the upper part of the upper machine, FIG. 4 is a perspective view showing a state where the work floor is connected to the upper part of the frame,
5 is a perspective view showing a state in which a side railing with a protective ceiling is being attached to a work floor, and FIG. 6 is a perspective view showing a state in which a side railing with a protective ceiling is being attached to a work floor.

A hoistway 1 of an elevator shown in FIG. 1 has a side wall 2 and a pit floor 3, and a machine room 5 having a machine room floor 4 is formed above the hoistway 1. Inside, a pair of guide rails 6 are provided upright.

The elevator installation elevator 7 of the present embodiment is provided with a pair of self-propelled hoists 8, 9 and a pair of self-propelled hoists 8, 9, which are installed by a guide rail 6. A pair of ropes, for example, a wire rope 11, which are suspended from the upper part of the hoistway 1 and the guided car 10 and are engaged with the self-propelled hoists 8 and 9, respectively, and the self-propelled hoists 8 and 9. And a control means 12 for controlling the operation of the control unit.

The above-described car 10 comprises a frame 10a, a car floor 10b attached to a lower portion of the frame 10a, and a work floor 10c attached to an upper portion of the frame 10a. The frame 10a is provided with a pair of guide rails 6 respectively.
, A pair of vertical frames 10d, an upper frame 10e connecting the upper ends of the pair of vertical frames 10d, and a pair of vertical frames 1
0d, and a lower frame 10f connecting the lower ends of the pair of vertical frames 10d.
And a guide shoe 10g which engages with the guide shoe.

The work floor 10c includes a front work floor 22 and a rear work floor 24, as shown in FIG. As shown in FIG. 6, a front handrail 26 is erected at the front end of the front work floor 22, and a rear handrail 27 is erected at the rear end of the rear work floor 24. The right side railing 28 and the left side railing 29 are erected at the ends, respectively. Protective ceilings 30a and 30b are rotatably attached to the upper end of the right side railing 28, and the upper end of the left side railing 29. Also, protective ceilings 30c and 30d are rotatably mounted. Further, the front working floor 22 is formed with an opening 33 located above a brake release lever 36 and a handle 38, which will be described later. The opening 33 is usually covered with a floor plate 34, The floor 24 also has an opening (not shown) that is covered by a floor plate 35.

As shown in FIG. 1, the self-propelled hoists 8, 9 are disposed at an intermediate portion between the car floor 10b and the work floor 10c of the car 10, for example, below the work floor 10c. .
One self-propelled hoist 8 includes a driving unit 8a around which one wire rope 11 is wound, and a brake unit (not shown) that supports the car 10 on the wire rope 11 when the car 10 is stopped, Power is supplied to the self-propelled hoisting machine 8 from a driving power supply (not shown) via a power line.
The self-propelled hoist 8 has a brake release lever 36 for releasing a brake unit, a ratchet mechanism, and a driving unit 8a.
And a detachable handle 38 for manually operating the.

The same applies to the other self-propelled hoisting machine 9, and a driving unit 9a around which the other wire rope 11 is wound.
And a brake unit (not shown) for supporting the car 10 on the wire rope 11 when the car 10 is stopped. The brake unit is also provided with a brake release lever 37.

Each of the wire ropes 11 has an upper end attached to a beam 14 installed on the machine room floor 4 via a mounting bracket 15, an intermediate portion wound around the drive units 8a and 9a, and a lower end provided on the pit floor. 3 is fixed via a fixing bracket 16.

The control means 12 includes a control panel 12a for outputting a control command to the self-propelled hoists 8, 9, a control panel 12a connected to the control panel 12a via a cable 13, and an up button 12b, a down button 12c, The operation unit 12e includes a stop button 12d, and a safety switch provided above the work floor 10c, for example, a limit switch 17 for preventing overwinding.

When assembling the elevating device 7 by the assembling method of the present embodiment, first, as shown in FIG.
The fixed frame 18 to which the self-propelled hoists 8, 9 are mounted is placed on the car floor 10b, and the upper end of the wire rope 11 wound around the self-propelled hoists 8, 9 is placed on the machine room floor 4. Upper beam 1
4 is fixed via a mounting bracket 15. Next, a pair of fixing bases 19 and 20 are fixed to the upper portion of the fixing frame 18 via a mounting bracket 21 by fasteners such as bolts and nuts (not shown).

Next, as shown in FIG.
In the state where the end of the front work floor 22 of the front work floor 22 of the work floor 10c, which does not have the side folded plate 22a, faces inward,
The front work floor 22 is placed and fastened by the fastener 23, and similarly, the rear work floor 24 is placed in a state where the end of the rear work floor 24 that does not have the side folded plate 24 a faces inward. Then, it is fastened by the fastener 25. Next, the support portions 2 on both sides of the front handrail 26 are attached to the mounting portions 22 b and 22 c of the front work floor 22.
6a, the front handrail 26 is erected,
The rear handrail 2 is attached to the mounting portions 24b and 24c of the rear work floor 24.
The rear handrails 27 are erected by fitting the support portions 27a on both sides of the rear rail 7.

Next, as shown in FIG.
2 and a right handrail 28 on both sides of the rear working floor 24,
The left handrail 29 is erected and these handrails 28, 2
9 is fixed to the front handrail 26 and the rear handrail 27 with a rubber band or a bind wire (not shown). Thereafter, when the worker presses the raising button 12b of the operation unit 12e to raise the car 10, and when the upper surfaces of the fixed bases 19 and 20 come into contact with the lower surface of the upper frame 10e of the frame 10a, the raising button 12b Is stopped, and the front working floor 22 and the rear working floor 24 are fixed to the upper frame 10e via the fixed bases 19 and 20.

Next, as shown in FIG. 5, the support portions 28a at both ends of the right handrail 28 are fastened to the support portion 26a of the front handrail 26 and the support portion 27a of the rear handrail 27, respectively. Post 29a at both ends of handrail 29
To the support 26a of the front handrail 26 and the support 27a of the rear handrail 27, respectively.

Next, as shown in FIG. 6, after extending the other columns 28b respectively housed in the columns 28a to a predetermined height, the columns 28b are fixed to the columns 28a. Similarly, after extending the other pillar portions 29b respectively housed in the pillar portions 29a to a predetermined height, the pillar portions 29b are fixed to the pillar portions 29a. Thereafter, the protective ceilings 30a and 30b are rotated to the horizontal state using the shaft 28c at the upper end of the right handrail 28 as a rotation axis, and the shaft 29c at the upper end of the left handrail 29 is rotated.
Is rotated about the axis of rotation to rotate the protective ceilings 30c and 30d to the horizontal state, and the front ends of the right protective ceilings 30a and 30b and the front ends of the left protective ceilings 30c and 30d are fastened via fasteners (not shown). And the right protective ceiling 30a,
The gap of 30b is closed with a closing plate 31a, and the left protective ceiling 3 is closed.
The gap between 0c and 30d is closed by another closing plate 31b. Next, the side handrails 32a, 32b are placed on the vertical frame 10d of the frame 10a.
b, and the rear handrail 32c is fixed to the rear ends of these side handrails 32a and 32b.

After assembling the lifting device 7 in this way,
The operator enters the car floor 10b of the car 10 and operates the operation unit 1
When the user presses the up button 12b of the control panel 2e, the up signal output from the operation section 12e is transmitted to the control panel 1
2a. Along with this, the self-propelled hoists 8, 9 operate under the control of the control panel 12a, and the driving units 8a, 9a respectively drive the wire ropes 11, and these driving units 8
The self-propelled hoists 8, 9 rise due to the frictional resistance between the a, 9a and the wire rope 11, and as a result, the car 10 rises in the hoistway 1 along the guide rail 6. Next, when the pushing operation of the raising button 12b is stopped when the car 10 reaches the desired height position, the self-propelled hoists 8, 9
Stop, and the car 10 also stops.

Similarly, the worker operates the down button 1 of the operation unit 12e.
When the user presses 2c, a descending signal output from the operation unit 12e is input to the control panel 12a via the cable 13. Along with this, the self-propelled hoists 8, 9 operate under the control of the control panel 12a, and the driving units 8a, 9a respectively drive the wire ropes 11 in the reverse direction, and these driving units 8a, 9
The self-propelled hoists 8 and 9 descend due to the frictional resistance between the a and the wire rope 11 and their own weight, and as a result, the car 10 descends in the hoistway 1 along the guide rail 6. Then
When the pressing operation of the lowering button 12c is stopped when the car 10 reaches a desired height position, the self-propelled hoisting machine 8,
9 stops, and the car 10 also stops.

Further, when an operator is on the work floor 10c of the car 10 and for some reason, for example, the power supply is cut off and the operation section 12e cannot be controlled, the self-propelled hoisting machine 8 , 9 are stopped, and each brake unit is operated to stop the car 10. Therefore,
The worker opens the floor plate 34 of the front working floor 22, puts his hand through the opening 33, and lowers the brake release lever 36 of the self-propelled hoisting machine 8, whereby the brake of the self-propelled hoisting machine 8 is released. The floor plate 35 of the rear working floor 24 is
Is opened, the hand is put through the opening, and the brake release lever 37 of the self-propelled hoist 9 is pulled down to release the brake part of the self-propelled hoist 9. As a result, when the car 10 descends by its own weight, after the car 10 reaches the nearest floor, the worker escapes from the car 10 to the landing on the nearest floor.

On the other hand, when the car 10 does not descend due to its own weight, the handle 38 installed near the self-propelled hoisting machine 8, 9 is connected to one of the drive units 8a, 9a, and By operating one of the drive units 8a and 9a by operation, the car 10 is raised and lowered to the nearest floor, and then the worker escapes from the car 10 to the landing on the nearest floor.

When the worker is on the car floor 10b of the car 10 and the car 10 stops for some reason, the worker raises his hand and pulls down the brake release lever 36. The brake portion of the self-propelled hoist 8 is released by pulling down the strap 36a and the brake of the self-propelled hoist 9 is pulled down by pulling down the pull-down string 37a of the other brake release lever 37. Open the part. At this time,
When the car 10 does not descend due to its own weight, the handle 38 installed near the self-propelled hoisting machine 8, 9 is moved to the drive unit 8.
a, 9a, and by operating the handle 38, one of the drive units 8a, 9a is operated.

The elevating device 7 of the embodiment configured as described above
Then, the worker can operate the self-propelled hoists 8, 9 from either the work floor 10c or the car floor 10b of the car 10, and the brake units of these self-propelled hoists 8, 9 , The car 10 descends to the predetermined floor by its own weight, so that the worker can escape from the car 10 by himself in an emergency such as a power outage or failure.

In the lifting device 7 according to the present embodiment, if the car 10 does not descend due to its own weight even if the brakes of the self-propelled hoists 8 and 9 are released as described above, the handle 38 by manual operation of the drive units 8a, 9a
Of the car 10 by rotating any of the
Can be raised and lowered to the nearest floor.

In the lifting device 7 of the present embodiment, when a worker is on the work floor 10c of the car 10,
Since this worker can open the floor plates 34 and 35 of the work floor 10c and put his / her hands through the openings 33 and the like to operate the brake units and the handles 38 of the self-propelled hoists 8, 9, the car 10
Even if a worker is on the working floor 10c, the car 10 can be easily raised and lowered to the nearest floor.

In the lifting device 7 of the present embodiment, the brake portions of the self-propelled hoists 8, 9 are opened by pulling down the pulling strings 36a, 37a of the self-propelled hoists 8, 9, respectively. Therefore, when an operator is on the car floor 10b of the car 10, the car 10 can be easily raised and lowered to the nearest floor without using a ladder or the like.

In the assembling method according to the present embodiment, the self-propelled hoists 8, 9 can be installed at the same time when the work floor 10c of the car 10 is connected to the frame 10a. The work efficiency when assembling 7 can be improved.

[0041]

As described above, according to the first aspect of the present invention, the worker can operate the self-propelled hoist from either the working floor of the car or the car floor. Therefore, regardless of whether the passenger gets on the working floor of the car or the car floor, the worker can operate the self-propelled hoist and escape from the car on his own in an emergency such as a power outage or failure. effective. Opening operation of the brake unit of the self-propelled hoist
The car does not descend due to its own weight
If the handle of the self-propelled hoist
Pivotable, thus ensuring that the car is raised to the nearest floor
There is an effect that you can descend.

[0042]

Further, according to the invention of claim 2 of the present invention, the worker can manually operate the self-propelled hoist by putting his hand through the opening of the working floor. There is an effect that the car can be easily moved up and down to the nearest floor even when it gets on the work floor above the car.

According to the invention of claim 3 of the present invention, the self-propelled hoist can be installed at the same time when the work floor and the frame are connected to each other, so that the work for assembling the elevator installation elevator can be performed. There is an effect that efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an elevator installation elevator device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a self-propelled hoist provided in the lifting device according to the embodiment.

FIG. 3 is a perspective view showing a state in which a work floor is attached to an upper part of the self-propelled hoist.

FIG. 4 is a perspective view showing a state in which a work floor is connected to an upper portion of a frame.

FIG. 5 is a perspective view showing a state in which a side railing with a protective ceiling is being attached to a work floor.

FIG. 6 is a perspective view showing a state in which a side railing with a protective ceiling is attached to a work floor.

[Explanation of symbols]

 Reference Signs List 1 hoistway 7 hoisting device 8, 9 self-propelled hoisting machine 8a, 9a driving unit 10 car 10a frame 10b car floor 10c work floor 11 wire rope (rope) 12 control means 22 front work floor 24 rear work floor 33 Opening 34,35 Floor plate 38 Handle 36,37 Release lever 36a, 37a Pull down string

────────────────────────────────────────────────── (5) References JP-A-7-237847 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 7/00

Claims (3)

(57) [Claims] An elevator having a hoistway, a frame, a car floor mounted on a lower portion of the frame, and a work floor mounted on an upper portion of the frame. In the elevator for elevator installation for performing the installation work of the equipment in the hoistway using the car as a work scaffold, a rope hanging from the top of the hoistway, and an intermediate portion between the car floor and the work floor. and a said multiplication self-propelled traction machine disposed on the car so that, the self-propelled traction machine is manually rotated while the electric rotating engaged with the rope
And a brake unit for supporting the car on the rope when the car is stopped, wherein the car is raised and lowered by turning the drive unit using the rope as a guide. Elevator for elevator installation, characterized in that: 2. The work floor, the brake unit,
Is located above the brake section and the handle.
The elevator apparatus for elevator installation according to claim 1, wherein an opening that can be closed is formed . 3. A hoistway, and when the hoistway is moved up and down.
The frame, the car floor attached to the bottom of the frame, and
And a work floor attached to the upper part of the frame body
And the equipment in the hoistway as a working scaffold
To assemble the elevator installation elevator that performs the installation work
The rope from the top of the hoistway,
The car floor is attached to the lower part of the frame, and the lower surface of the work floor
In addition, a self-propelled hoist that moves up and down using the rope as a guide
After installation, engage the rope with this self-propelled hoist.
And by driving the self-propelled hoist,
Raise the work floor to the level above the frame,
Connecting these work floors to the top of the frame
A method for assembling a lift device for elevator installation .