JPH1111819A - Elevating device for elevator installation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevating device for elevator installation which is applicable to a large-scale elevator whose weight of cage frame exceeds the limit of the driving ability of a mobile winch, as well as to other types of elevator. SOLUTION: A wire rope 10 is dangled being fixed to the lower part of a beam 3b installed on the machine room floor 3a, is wound on a movable part of a winch 11 which is installed on an elevating table 8 coupled by a removable coupling means to a working floor 7 having a connecting part capable of connecting a regularly installed cage frame 4, and is connected with a metal fixture 13 secured to the pit floor 2. When the movable part of the winch 11 is rotted in conformity to the signal given from the operation part 15, the winch 11 rises or sinks owing to the frictional resistance with the wire rope 10, and along therewith an elevating device 6 for elevator installation and a cage frame 4 for regular installation will ascend or descend inside the pit 1 along a guide rail 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting apparatus for elevator installation for mounting equipment in a hoistway while moving a hoist as a scaffold in the hoistway.

[0002]

2. Description of the Related Art Conventional elevator mounting and lowering devices are disclosed in JP-A-58-47983 and JP-A-61-45.
As described in JP-A-876-876 and JP-A-61-200877, a wire rope having one end fixed to an upper part of a car frame is provided, and the wire rope is wound around a pulley installed on the upper part of a hoistway, and is moved up and down. 2. Description of the Related Art There is known an apparatus in which a car frame is moved up and down in a hoistway by winding up the other end by a winch provided at a lower part of the road. However, with this elevator installation elevator, in the case of an elevator that rises and descends to a high floor like a skyscraper, the wire rope wound up by the winch becomes considerably long, and all the wire ropes can be wound up on the winch drum. Not applicable to high floor elevators.

Therefore, Japanese Patent Application Laid-Open Nos. Sho 60-213676, Hei 5-70055 and Hei 7-23 are disclosed.
As described in Japanese Patent No. 7847, a wire rope is hung from the upper part of the hoistway, and a self-propelled hoist that engages with the wire rope is installed in a car frame. There has been proposed an elevator installation elevating device in which a car frame is moved up and down in a hoistway using the as a guide. However, the work floor is installed at the top of the car frame and the car floor is installed at the bottom of the car frame, and the work floor and the car floor are used as scaffolds to install equipment in the hoistway, so efficient installation Although the work can be carried out, the weight of the car frame increases as the size of the elevator increases, and if the weight exceeds a certain value, the driving capacity of the self-propelled hoist will be exceeded. However, it cannot be adopted for those having a large car frame. Therefore, Japanese Patent Application Laid-Open No. 58-58368 proposes a system using a relatively lightweight temporary work table in place of the car frame.

[0004]

However, the temporary installation workbench in the above-mentioned conventional elevator installation elevating device raises and lowers the high floor and the weight of the car frame limits the driving capability of the self-propelled hoist. Since it is required only for large elevators exceeding the number, the number of uses is limited, and it is difficult to recover the production cost and maintenance cost of a temporary installation work table.

It is an object of the present invention to provide a large elevator in which the weight of the car frame exceeds the limit of the driving capability of the self-propelled hoist, and an elevator mounting / lowering device applicable to other elevators. To provide.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to an elevator installation elevator device in which equipment in a hoistway is installed while raising and lowering a work floor in a hoistway. A temporary work floor having a connecting portion capable of connecting a frame, a wire rope hanging down from an upper portion of the hoistway, and a hoist that engages with the wire rope and raises and lowers the work floor. Features.

[0007] The elevator installation elevator according to the present invention comprises a temporary work floor having a connecting portion capable of connecting the car frame of the present invention, a wire rope hanging down from the upper part of the hoistway, and the wire rope. In order to equip the hoist with the car frame in the normal state because it is equipped with a hoist that engages with the hoist and raises and lowers the work floor, if the suspended weight exceeds the hoisting capacity of the hoist, The hoisting machine can be removed and placed near the top of the hoistway to raise or lower the work floor, or the car frame can be removed to raise and lower the work floor, from which the equipment in the hoistway can be installed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an elevator installation elevating device according to an embodiment of the present invention. The hoistway 1 is formed of a hoistway wall 1a for mounting equipment in the hoistway, a pit floor 2, and a machine room 3 having a machine room floor 3a at an upper part thereof, and a permanent car frame with a car floor 17 is provided. A guide rail 5 for guiding the ascent and descent of the hoistway 4 is already laid in the hoistway 1. The elevator installation elevator 6 is provided with a main car frame 4
A work floor 7 having a connecting portion capable of connecting the work floor, an elevator 8 connected to the work floor 7 by bolts (not shown),
A handrail 9 with a protective ceiling connected to the work floor 7, a wire rope 10 hanging from the top of the hoistway, and a hoisting platform that is housed in the hoisting platform 8 and engages with the wire rope 10 and is rotated by its rotation. The hoisting machine 11 includes a hoisting machine 11 for raising and lowering the hoisting machine 8 and a control means 12 for controlling the operation of the hoisting machine 11.

The wire rope 10 is fixed to the lower part of the beam 3 b installed on the floor 3 a of the machine room and is hung down. Thereafter, the wire rope 10 is wound around a movable part (not shown) of the hoisting machine 11 and further fixed to the pit floor 2. It is connected to the fixing bracket 13. The control means 12 includes a control panel 14 that outputs a control command to the hoist 11, an operation unit 15, and a control cable 16 provided between the control panel 14 and the operation unit 12. When a signal from the operation unit 15 is input to the control panel 14 by opening the control cable 16, a movable part (not shown) of the hoisting machine 11 rotates, and the wire between the wire rope 10 wound around the movable part is rotated. Hoisting machine 11 due to frictional resistance
Is raised or lowered, and the elevator device 6 for elevator installation and the car frame 4 for permanent installation are raised or lowered along the guide rails 5 in the hoistway 1. Next, when the operation of the operation unit 15 is stopped when the car frame 4 reaches a desired height, the hoisting machine 11 stops, and the car frame 4 also stops. Thereafter, the worker can perform operations such as mounting the equipment in the hoistway on the hoistway wall 1a from the car frame 17 or the worktable 7.

Next, a description will be given of a connection structure of the elevator installation elevator 6 and the car frame 4. Elevator 8
Is a work floor 7 composed of a work floor front part 7a and a work floor rear part 7b.
Are connected by connecting means that can be attached and detached such as bolts (not shown). The elevator 8 is installed below the upper frame 18 of the car, and the front of the work floor 7a and the rear of the work floor 7b of the work floor 7 are set so that the upper car frame 18 is sandwiched therebetween. And work floor front part 7a and work floor rear part 7
and b are connected by a detachable connecting means such as a bolt (not shown). For this reason, the elevator installation elevating device 6 and the car frame 4 are integrally connected via the car upper frame 18 and the work floor 7.

The elevator installation elevator 6 connected to the car frame 4 and the car floor 17 is effective when the total weight thereof does not exceed the lifting capacity of the self-propelled hoisting machine 11. However, the sizes of the car frame 4 and the car floor 17 are various, and as these sizes increase, the weight naturally increases. Due to this increase in weight, the total weight of the elevator installation elevator 6, the car frame 4, and the car floor 17 may exceed the lifting capacity of the hoisting machine 11.

However, the above-described elevator mounting / lowering device can cope with the mounting operation in this case, which will be described with reference to FIGS. FIG. 2 is a front view of the elevator installation elevator, showing a state in which the elevator 8 is separated as another mode of use of the present invention. First, when the total weight of the elevator installation elevator 6, the car frame 4, and the car floor 17 exceeds the lifting capacity of the hoisting machine 11,
The lifting platform 8 installed in the lower part of the car upper frame 18 shown in FIG. 1 is removed from the work floor 7 by releasing the connecting means (not shown). Since the lifting platform 8 is connected by a connecting means that can be attached and detached, it is possible to easily cope with this detachment.
The lift 8 thus removed is, as shown in FIG.
Is mounted on the upper part of the beam 3b installed on the beam 3b, and is fixed to the beam 3b with a bolt (not shown). Thereafter, the wire rope 10 is released from the beam 3b and from the pit floor 2 via the fixing bracket 13, and one end thereof is fixed to the work floor 7 this time. Then, after winding the intermediate part of the wire rope 10 around the movable part of the hoisting machine 11 incorporated in the lifting platform 8, the other end is fixed to the work floor 7. The elevator 8 and the beam 3b can be installed near the top of the hoistway, such as the top floor (not shown), in addition to the machine room.

When an operation unit 15 located on the work floor 7 is operated, a signal is input to a control panel 14 incorporated in the lift 8 via a control cable 16. When the movable part (not shown) of the hoisting machine 11 accommodated in the elevator 8 is rotated by the control of the control panel 14, the wire rope 10 moves up or down due to frictional resistance between the movable part (not shown) and the wire rope 10, At the same time, the elevator installation elevator 6 excluding the elevator 8 and the car frame 4 move up or down in the hoistway along the guide rail 5. Therefore, the worker stops the car floor 7 at a predetermined position, and performs work such as mounting equipment in the hoistway from the work floor 7. At this time, the hoisting machine 8
Are lifted by the car frame 4 with the car floor 17 and the elevator device 6 for elevator installation excluding the elevator 8, and the weight of the elevator 8 is reduced. Application to the car frame 4 becomes possible.

FIG. 3 is a front view showing an elevator installation elevator according to another embodiment of the present invention. Here, the car floor 17 occupying a large proportion of the weight of the car from the state shown in FIG. 1 is removed from the car frame 4 during the installation work, and the operator gets on the work floor 7 and I work on it. Other configurations are the same as those of the embodiment shown in FIG. 1, and therefore, the same components are denoted by the same reference numerals and detailed description thereof will not be repeated. Detached basket floor 17
Is mounted on the car frame 4 again after the installation work is completed. By removing the car floor 17 in this way,
The weight is reduced by the car floor 17, and the invention can be applied to an elevator having a large car frame 4 by the reduced weight.

Further, in the configuration shown in FIG. 2, if the lifting platform 8 of the elevator installation lifting apparatus 6 is simply arranged in the machine room 3 to exceed the lifting capacity of the hoisting machine 11, As described with reference to FIG. 3, by further removing the car floor 17 during the installation work, the elevator installation elevator 6
Further, the weight of the car frame 4 can be further reduced, and the present invention can be applied to an elevator having the car frame 4 which is large by the reduced weight.

By the way, depending on the situation of the installation site, FIG.
In some cases, it is necessary to perform an operation of mounting the entrance / exit component 19 before the erecting and mounting of the guide rail 5 for guiding the elevation of the car frame 4 shown in FIG. FIG.
It is a front view showing an elevator installation elevating device according to another embodiment of the present invention adapted to such a situation. The elevator installation elevator 6 has a car frame guiding wire rope 20 having one end connected to the beam 3b arranged in the machine room 3 and the other end fixed to a fixing bracket 13 for attaching a rope to the pit portion of the hoistway 1. A work floor 7 having a connection portion connected to the main car frame 4, a lifting platform 8 removably connected to the work floor 7 by connection means (not shown), and a protective device connected to the upper portion of the work floor 7. With handrail 9 with ceiling,
The hoisting machine 11 is housed in the hoisting platform 8 and engages with the wire rope 10 to raise and lower the hoisting platform 8. The control unit 12 controls the operation of the hoisting machine 11. The wire rope 10 is a beam 3b installed on the machine room floor 3a.
After hanging down, it is wrapped around a movable part (not shown) of the hoisting machine 11, and is further fixed to the pit floor 2 by the fixing bracket 13. The control unit 12 includes a control panel 14 that outputs a control command to the hoisting machine 11, an operation unit 15,
And a control cable 16 for connecting between the operation unit 15. These configurations correspond to a state where the guide rail 5 for guiding the car frame 4 is not installed in the embodiment shown in FIG.

When an operator mounted on the work floor 7 or the car floor 17 transmits an operation signal from the operation unit 15, the operation signal is input to the control panel 14 via the control cable 16, and is controlled by the control panel 14. The movable part (not shown) of the upper machine 11 rotates, and the hoist 11 rises or descends due to frictional resistance between the movable part and the wire rope 10, and the elevator installation elevator 6 and the car frame 4 move the car It will rise or fall in the hoistway 1 along the wire rope 20 for frame guidance. Next, when the operation of the operation unit 15 is stopped when the car frame 4 reaches a desired height, the hoist 1
1 stops, and the car frame 4 also stops, so that the worker can mount the equipment in the hoistway at a predetermined position. At this time, assuming that the wire rope 10 is cut, another guide rope 20 hanging from the beam 3b is provided and fixed to the elevator installation elevator 6 and the car frame 4 so as to correspond to the guide rope 20. If the guide rope gripping device 21 is provided and the guide rope 20 is gripped by the guide rope gripping device 21, safety during the installation work can be ensured.

As can be seen from this embodiment, the elevator installation elevator 6 and the car frame 4 can be safely mounted even when the guide rail 5 for guiding the car frame 4 is not installed.
It is possible to ascend or descend in the hoistway 1, and it is possible to cope with a case where the entrance and exit parts 19 and the like are to be mounted first.

FIG. 5 is a front view showing an elevator installation elevator according to another embodiment of the present invention. This elevator installation lifting apparatus 6 shows a state in which the car frame 4 of FIG. 4 is removed, and one end is connected to a beam 3b arranged in the machine room 3 and the other end is used for attaching a rope to a pit portion of the hoistway 1. The wire rope 20 for guiding the car frame fixed to the fixing bracket 13, the work floor 7 from which the main car frame 4 is removed by the above-mentioned connecting portion, and detachably connected to the work floor 7 by connecting means (not shown). Lift 8, a handrail 9 with a protective ceiling connected to the upper part of the work floor 7,
The elevator 8 is engaged with the wire rope 10 and
And a control means 12 for controlling the operation of the hoisting machine 11. The wire rope 10 hangs from a beam 3 b installed on the machine room floor 3 a, is wound around a movable part (not shown) of a hoisting machine 11, and is fixed to the pit floor 2 by a fixing bracket 13.
The control means 12 includes a control panel 14 for outputting a control command to the hoist 11, an operation unit 15, and a control cable 16 for connecting the control panel 14 and the operation unit 15, as in the previous embodiment. And consists of Further, another guide rope 20 hanging from the beam 3b is provided, and a guide rope gripping device 21 fixed to the elevator installation elevating device 6 is provided so as to correspond to the guide rope 20, and the guide rope gripping device 2 is provided.
When the wire rope 10 is cut at 1, the guide rope 20
Is to be gripped.

As described above, the elevating device 6 for installing the elevator
Can be moved up and down in the hoistway 1 without being connected to the car frame 4 and guided by the wire rope 20 for guiding the car frame. be able to. Therefore, the present invention is applicable to a case where it is desired to attach the entrance / exit parts 19 and the like prior to laying the guide rails, and is applicable to an elevator having a large car frame 4. Get higher.

FIG. 6 is a perspective view showing a work floor and a handrail with a protective ceiling of an elevator installation lifting apparatus 6 according to another embodiment of the present invention. The basic configuration of the work floor 7 and the handrail 9 with a protective ceiling attached to the upper surface of the car upper frame 18 constituting the upper part of the car frame 4 is a work floor 7 on which an operator rides and work is performed on the work floor 7. In this case, a handrail 9 for preventing the worker from falling down and a protective ceiling 29 for catching a fallen object from the upper part during the work, and a caster 30 for facilitating transportation on site are installed on the lower surface of the work floor 7. Have been. In these basic configurations, the working floor 7 is integrated with the skirting board, and has a main working floor 7a having a dimension equal to or smaller than the opening size of the elevator entrance, and the working floor 7 is housed in the main working floor 7a and, if necessary, from the elevator frontage. And an auxiliary work floor 7b to be pulled out. In addition, a main work floor auxiliary plate 30 and an auxiliary work floor auxiliary plate 31, which are drawn out in the direction of the elevator frontage as needed, are formed on the main work floor 7a and the auxiliary work floor 7b, respectively. The handrail 9 includes a main handrail 9a and an auxiliary handrail 9b,
These are composed of two types of pipes having different diameters. The outer diameter of the auxiliary handrail 9b, which is a small-diameter pipe, is smaller than the inner diameter of the main handrail 9a, which is a large-diameter pipe, so that the auxiliary handrail 9b can slide inside the main handrail 9a. The main handrail 9a is attached to the main work floor 7a, and the auxiliary handrail 9b is attached to the auxiliary work floor 31. The auxiliary handrail 9b moves in and out of the main handrail 9a in accordance with the draw-out of the auxiliary work floor 7b.

The protective ceiling 29 is, like the work floor 7, an auxiliary ceiling that is pulled back and forth with respect to the direction of the frontage of the elevator as required with reference to two main ceilings 29a that are divided into right and left when viewed from the hoistway side. 29b, and a main ceiling auxiliary plate 29c and an auxiliary ceiling auxiliary plate 29d that are drawn out toward the elevator frontage with respect to the main ceiling 29a and the auxiliary ceiling 29b. A ceiling column 32 is set up on the auxiliary ceiling auxiliary plate 29d, and is connected to the handrail column 33 of the handrail 9 of the work floor 7. The configuration of the ceiling pillar 32 and the handrail pillar 33 is similar to that of the handrail 9.
And the handrail post 33 are composed of two types of pipes having different diameters, and the ceiling post 32 is configured to be slidable in the handrail post 33, so that the height can be adjusted as necessary. ing.

As described above, since the work floor 7 and the handrail 9 with a protective ceiling can be changed in size by expanding and contracting, the work floor 7 and the handrail 9 with a protective ceiling can be mounted in a single model corresponding to various car frame sizes. Becomes possible. In addition, if the work frame 7 is expanded, the installation work can be performed safely without forming a large gap between the work frame 7 and the hoistway wall. Similarly, in the case of a small elevator, the work floor 7 can be reduced. For example, no large gap is formed between the hoistway wall and the car frame 4.

The construction of the work floor 7 and the handrail 9 with a protective ceiling can be adopted not only in FIG. 6, but also in accordance with the size of the car frame and the size of the hoistway. be able to.

[0025]

As described above, the elevator apparatus for elevator installation according to the present invention includes a temporary work floor having a connecting portion to which a permanent car frame can be connected, a wire rope hanging down from the top of the hoistway, A hoist that engages with this wire rope and raises and lowers the work floor is provided, so that the installation of large elevators with heavy car frames and car floors and work without using guide rails and car frames can be performed. Becomes possible,
One model can support multiple types of elevators.

[Brief description of the drawings]

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

FIG. 2 is a front view of an elevator installation elevator device according to another embodiment of the present invention.

FIG. 3 is a front view of an elevator elevating device according to still another embodiment of the present invention.

FIG. 4 is a front view of an elevator elevating device according to still another embodiment of the present invention.

FIG. 5 is a front view of an elevator installation elevator according to still another embodiment of the present invention.

FIG. 6 is a perspective view showing a main part of an elevator installation elevating device according to still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 1a Hoistway wall 2 Pit floor 3 Machine room 3a Machine room floor 3b Beam 4 Car frame 5 Guide rail 6 Elevator for elevator installation 7 Work floor 8 Elevating stand 9 Handrail with protective ceiling 10 Wire rope 11 Hoisting machine 15 Operation unit 17 Car floor 18 Car upper frame 19 Doorway parts

Claims (3)

[Claims] 1. An elevator installation / elevation apparatus in which equipment in a hoistway is installed while raising / lowering a work floor in a hoistway, a temporary work floor having a connecting portion capable of connecting a permanent car frame, An elevator installation elevator, comprising: a wire rope hanging down from an upper portion of the hoistway, and a hoist that engages with the wire rope and raises and lowers the work floor. 2. An elevator installation elevator for mounting equipment in a hoistway while raising and lowering a work floor in a hoistway, a temporary work floor having a connecting portion connected to an upper part of a permanent car frame, A wire rope hanging down from an upper portion of the hoistway, and a hoist that is connected to the work floor by a detachable connecting means and engages with the wire rope to raise and lower the work floor. Elevator equipment for elevator installation. 3. An elevator installation elevator in which equipment in a hoistway is installed while raising and lowering a work floor in a hoistway, wherein a temporary work floor having a connecting portion connected to an upper portion of a permanent car frame; A hoisting machine having a detachable connecting means on the work floor and arranged near the top of the hoistway, and being wound around the hoisting machine and hanging down, the work floor can be raised and lowered by the hoisting machine And a wire rope connected to the elevator.