JPH09151053A - Fixing device for car of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely install a car without requiring an outrigger scaffold for connecting work in a connecting part of a hydraulic jack by installing a support member to support a lower part of a car on a fixing member so as to be movable between a position to support the lower part of the car and the other position to support its lower part. SOLUTION: When a hydraulic elevator is installed, first of all, a fixing device 5 to position a work floor is installed on a guide rail 3a by fastening a fastener 53a, and a support member 5c is put in a condition of laterally opening around a hinge 52c by pulling an operation rope 51e. Next, after a car is suspended until a bottom part of the landing car comes to a position higher than the fixing device 5 by using a lift, another operation rope is pulled, and the support member 5c is rotated inside, and is put in a former condition. In this condition, the bottom part of the suspended car is brought into contact with an upper part of the support member 5c of the fixing device 5. Connecting work of a hydraulic jack is performed on a work floor of the car, and afterwards, the fixing device 5 is removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing jig for an elevator car, and more particularly to a device for fixing an elevator car in an installation work in which the car is used as a work floor.

[0002]

2. Description of the Related Art In recent years, in elevator installation, there is a tendency to adopt a scaffold-less construction method in which a work floor is arranged in a main car and equipment in a hoistway is installed while elevating the car. As an example of this scaffold-less construction method, a scaffold-free construction method for a hydraulic elevator will be described with reference to the drawings.

FIG. 4 is a cross-sectional view of a hoistway showing a conventional hydraulic elevator installation method. When installing the hydraulic elevator, first of all, the scaffolding 7 is set on the upper part of the hoistway 1.
The winch 8 provided on the upper hoistway wall of the projecting scaffold 7 connects the hoistway of the car guide rail 3 that guides the car 2 of the permanent construction and lifts it up. The upper part and the lowermost part are fixed to the hoistway wall by the bracket 4a. After that, at the bottom of the hoistway 1, the lowest car guide rail 3a of the vertically arranged car guide rails 3 is centered and fixed to the hoistway wall by the bracket 4b. Next, the fixing device 5 is attached to the car guide rail 3a at the lowermost position A of the hoistway.

FIG. 5 is an enlarged perspective view showing the fixing device 5. The fixing device 5 includes a plate member 51a that comes into contact with the back surface of the car guide rail 3a and a car guide rail 3a.
It is composed of a grip member 5a for gripping the car 2 and a support member 5b for supporting the car 2. The grip member 5a fixes the rail clip 52a for gripping the car guide rail 3a and the rail clip 52a to the plate member 51a. Fastener 53
The support member 5b includes a contact portion 51b and a fastener 52b for fixing the contact portion 51b to the plate member 51a.

Assembling the car 2 while supporting the car 2 by bringing the bottom of the car 2 shown in FIG. 1 into contact with the upper portion of the supporting member 5b of the fixing device 5 as described above, the upper part of the car 2 is assembled. The work floor 21 is installed in the. After that, a not-shown scaffolding scaffolding is installed near the connection position 6d of the hydraulic jack 6, and on this scissoring scaffolding, the worker pushes the hydraulic jack upper part 6a of the hydraulic jack 6 and the hydraulic jack lower part 6b. Are connected at the connection position 6d to assemble the hydraulic jack 6. Next, one end of a main rope (not shown) is attached to the car 2, and its multi-ends are wound around a pulley 6c provided on the upper portion of the hydraulic jack 6 and then attached to the lower part of the car 2. By installing the elevator in this way, the car 2 is guided by the car guide rails 3 to slide up and down by the guide rollers 9 provided on the upper and lower parts of the car 2 to slide. Since it becomes possible to move up and down in the road 1, the hydraulic jack 6 is driven to move the car 2 up and down via the main rope (not shown),
The equipment in the hoistway is sequentially installed from the work floor 21 from the lower part to the upper part, and the hydraulic elevator is installed by the scaffold-less construction method.

Further, even in a rope type elevator such as a winding cylinder type or a climbing type, it is necessary for installation work in the hoistway when an adequate power source cannot be secured to drive the hoisting machine which is permanently installed. A method of installing a foothold scaffold at the position and installing equipment inside the hoistway was proposed.

[0007]

However, in the conventional hydraulic elevator installation method, as described above, it is necessary to connect the hydraulic jack upper portion 6a and the hydraulic jack lower portion 6b with the connecting portion 6d of the hydraulic jack 6. It was necessary to provide a footing scaffold, and extra work time was required to install the footing scaffold. Regarding this point, the car 2 is lifted by the winch 8 and is lifted up to the position B of the solid line, and the work floor 21 above the hoisted car 2 is lifted.
Although a method of performing connection work by using a car can be considered, this method causes an operator to get into the unstable car 2 and the work floor 21 in which the car 2 is hung by the winch 8, which is extremely dangerous. Therefore, the car 2 must be fixedly held by something other than a winch rope. However, for example, by attaching the fixing device 5 to the guide rail 3, the car 2
There is no work scaffold for attaching the fixing device 5 below the position B of the lifted car 2 even when trying to support the.
Further, since the work of getting under the suspended car 2 is dangerous, the fixing device 5 cannot be attached. In addition, before suspending the cage 2 by the fixing device 5,
Installed at a predicted position where the car 2 can be supported after lifting,
After that, when the car 2 is attempted to be lifted, the guide rollers 9 provided on the car 2 support the fixing device 5 as shown in FIG. 6 which is a plan view showing the positional relationship between the guide roller 9 and the fixing device 5. The member 5b becomes an obstacle and the car 2 cannot be lifted. In addition, even in a rope type elevator, a considerable amount of work and work time are required to install a plurality of footing scaffolds at the positions required for installation work. Performing the installation work on the car and the work floor above it with the vehicle fixedly held in the intermediate position of the hoistway results in the same situation as in the installation work of the hydraulic elevator described above.

It is an object of the present invention to provide an elevator car fixing device which does not require a pop-out scaffold for connection work at a connection portion of a hydraulic jack and can be safely installed. It is in.

[0009]

In order to achieve the above object, the present invention provides a support member on a fixing member attached to a predetermined position of a guide rail vertically erected in a hoistway, thereby providing the guide. In an elevator car fixing device in which a lower part of a car guided by rails is supported by the support member, the support member includes a position for supporting the lower part of the car and a lower part of the car. It is characterized in that it is movably connected to another position for supporting and is connected to the fixing member.

As described above, since the elevator car fixing device according to the present invention is provided with the support member so as to be able to take two positions, the fixing device is previously fixed to a predetermined position of the guide rail by using the car. Even if the car is placed, the support member can be moved to a position where it does not collide with the guide rollers when the car is lifted for connecting work of the hydraulic jack. Can be lifted over. Moreover, after the car has passed, the support member can be moved back to another position that supports the lower part of the car, so that the car can be supported and fixed by this support member. Therefore, it is not necessary to provide a projecting scaffolding for the connection work at the connection portion of the hydraulic jack, and the installation work of the fixing device at the lower part of the car as in the past is not necessary, so that the fixing device is not required. The safety at the time of mounting can be improved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a fixing device for an elevator car according to an embodiment of the present invention. The fixing device 5 includes a fixing member 51a that abuts against the back surface of the car guide rail 3, a gripping member 5a that grips the car guide rail 3a, and a support member 5c that supports the car 2. The member 5a is the same as that of the conventional example, and the same components are designated by the same reference numerals and the description thereof is omitted. On the other hand, the support member 5c
Is similar to the conventional example in that it has a contact portion 51c that contacts the lower portion of the car 2, but has a hinge portion 52c that rotatably attaches this contact portion 51c to the side portion of the fixing member 51a. It is different in that it is configured. This support member 5
The operation ropes 51e and 52e are provided as operation members at the end of c.
The operation rope 51a extends through the pipe of the rope guide fitting 51d attached to the fixing member 51a to the elevator hall near the attachment position of the fixing device 5. Further, the operation rope 52e extends through a through hole 52d formed in the fixing member 51a to an elevator landing in the vicinity of the mounting position of the fixing device 5. Therefore, the support member 5c can be remotely operated from the elevator landing side, and by pulling the operation rope 51e, the support member 5c is pivoted outward with respect to the hinge portion 52c as a fulcrum, as shown in FIG. As can be seen from the above, it is held at one position where it does not collide with the guide roller. The support member 5c is rotated in the opposite direction about the hinge portion 52c as a fulcrum by pulling the operation rope 52e to the state shown in FIG. 1, that is, another position where the car 2 can be supported, as will be understood from the description below. Can be held at.

When installing a hydraulic elevator,
A projecting scaffold 7 is installed on the upper part of the hoistway 1, a car guide rail 3 is erected, a fixing device 5 is attached, a car 2 is assembled, and a work floor 21 is installed on the car 2. Up to this point, the description is omitted because it is the same as the conventional example described using FIG. The car 2 is already assembled at the lowest position A of the hoistway as shown in FIG. 4, and the car 2 is ready to be lifted by the winch 8 which is a lifting device. A description will be given starting from the point where a scaffold for connecting the hydraulic jack upper portion 6a and the hydraulic jack lower portion 6b is provided in the vicinity of the connecting position 6d.

First, the car 2 is fixed and held in the vicinity of the connecting portion 6d of the hydraulic jack 6, but the mounting position B of the fixing device 5 for locating the work floor 21 within the range where the hydraulic jack 6 can be connected is determined. . Then, the guide rail 3a is clamped between the fixing member 51a of the grip portion 5a and the rail clip 52a at the mounting position B of the fixing device 5 from the top of the cage 2 or the work floor 21 assembled at the lowest position A of the hoistway. Then, the fastener 53a is tightened, and the fixing device 5 is attached to the guide rail 3a. After that, the fixing device 5 pulls the operation rope 51e from the elevator landing 10 so that the fixing device 5 shown in FIG.
From this state, the support member 5c is opened to the left and right as shown in FIGS.

Next, the winch 8 which is a lifting device is used to lift the car 2 until the bottom of the car 2 is at a position higher than the fixing device 5 attached to the position B. At this time, the guide roller 9 of the car 2 rolls along the guide rail 3, but the support member 5c is left and right open as shown in FIG. It can be moved until the bottom of the car 2 comes to a position higher than the fixing device 5 attached to the position B.

Then, when the operation rope 52e is pulled from the elevator hall 10 this time, the supporting member 5c rotates inward and the state shown in FIG. 2 changes to the state shown in FIG. In this state,
When the car 2 that has been suspended by the winch 8 is lowered, the bottom of the car 2 comes into contact with the abutting portion 51c of the support member 5c of the fixing device 5, and the car 2 can be fixedly held. . In this way, the car 2 is fixed,
The connection work of the connection portion 6d of the hydraulic jack 6 is performed on the work floor 21 attached to the upper part thereof. After that, the car 2 is slightly lifted by the winch 8, the operation rope 51e is operated again to open the support member 5c as shown in FIGS. 2 and 3, and the car 2 is lowered in this state to move up and down the hoistway. After moving the car 2 to the lowest position A, the fixing device 5 is removed on the work floor 21.

According to this embodiment, a high lift is provided in which the connecting portion 6d of the hydraulic jack 6 is at a high position only by using the fixing device 5 having a simple structure without providing a protruding scaffold in the middle of the hoistway. Even hydraulic elevators can be installed using the scaffold-free installation method. Moreover, the attachment of the fixing device 5 to the guide rail 3 does not have to be performed at the lower portion of the car 2 as in the conventional case, but can be safely performed from the car 2 or the work floor 21 above it. The operation of the support member 5c of the fixing device 5 afterward can also be performed at the hall or the car 2
Alternatively, it can be safely performed from the work floor 21 above it by a simple operation. Also in the case of a rope type elevator, similarly, by opening and closing the support 5c of the fixing device 5, even if the car is lifted and lowered by the winch, the fixing device 5 can be installed at the stop position. Installation work can be performed safely and smoothly.

In the embodiment described above, the fixing device 5
In order to enable the support member 5c to receive the car 2 and support the car 2 and to allow the car 2 to rise without avoiding contact with the guide rollers, the support member 5c is hinged to the hinge portion 52c. The operation ropes 51e and 52e are used to attach the fixing member 51a to the fixing member 51a or to open and close the supporting member 5c by the hinge portion 52c, but the invention is not limited to this, and a connecting structure that can take two positions is adopted to operate. It suffices to have an operation means that can be remotely operated including a rod and the like.

[0018]

As described above, in the elevator car fixing device according to the present invention, since the supporting member is configured so as to be able to take two positions by the operation of the operation means, the upper part of the car is previously provided. Even if the fixing device is arranged, the supporting member can be moved to a position where the guide roller for guiding the car does not collide when the car is lifted, by operating the operation means, and the operation can be performed after the car has passed. By operating the means, the support member can be returned to the original position and the car can be fixedly held, so there is no need to carry out the dangerous work of attaching a fixing jig at the bottom of the car in the suspended state as in the past. It does not require a jumping scaffold for connecting work at the connection part of the hydraulic jack, and can be installed safely.

[Brief description of the drawings]

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

2 is a perspective view showing a different state of the fixing device shown in FIG. 1. FIG.

FIG. 3 is a plan view of the fixing device shown in FIG.

FIG. 4 is a vertical cross-sectional view of a hoistway showing a method of installing a hydraulic elevator.

FIG. 5 is a perspective view of a conventional elevator car fixing device.

FIG. 6 is a plan view of the fixing device shown in FIG.

[Explanation of symbols]

 1 hoistway 2 car 3 guide rail 5 fixing device 5a gripping member 5c supporting member 51a fixing member 51e, 52e operation rope 51c abutting portion 52c hinge portion

Claims (4)

[Claims] 1. A support member is provided on a fixed member attached to a predetermined position of a guide rail standing vertically in a hoistway, and a lower portion of a car guided by the guide rail is supported by the support member. In the elevator car fixing device, the support member is movable between a position supporting the lower part of the car and another position supporting the lower part of the car. An elevator car fixing device characterized by being connected to the fixing member. 2. The elevator car fixing device according to claim 1, further comprising operation means for changing the position of the support member. 3. The elevator car according to claim 1, wherein the supporting member is connected to the fixing member via a hinge portion so as to be able to take the two positions. Fixing device. 4. The elevator car fixing device according to claim 2, wherein the operating means is an operating rope extending at one end thereof connected to the supporting member.