JPH09221288A - Centering device for elevator guide rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow fixedly centering a guide rail easily and accurately by use of laser beam. SOLUTION: Laser beam generators each having a weight in its axial direction and being capable of variably supporting the radiation direction of laser beam are arranged at specified positions of a pit, a positioning part is supported on an elevator car working floor 8 moving in an elevator way 3. and an elongation abutting units are elongated and made to abut on walls 3a, 3b of the elevator way and fixed thereto. Laser light receiving parts 43a, 43b are mounted on a base member 30, and the base member 30 is held by holding units 45a, 45b through a position adjuster capable of adjusting a position in the same plane with the elongation direction of the elongation abutting units.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator guide rail centering device, and more particularly to an elevator guide rail centering device using a laser beam for centering.

[0002]

2. Description of the Related Art A conventional centering device for an elevator guide rail using a laser is disclosed in JP-A-6-115851, JP-A-6-156927 and JP-A-6-2.
As described in Japanese Patent No. 93482, the car is moved up and down so that the lower part of the car is positioned on the centered guide rail, and the laser light from the laser emitter installed under the car is placed on the car. Then, the next guide rail is installed using this laser light as a reference.
In detail, first, install a centering worker on the handrail of the work floor on the car, let the centering worker hold the guide rail, and temporarily fix the guide rail to the hoistway wall with the bracket in this state, After that, the guide rail is centered while the bracket is moved by hitting it with a hammer or the like so that the laser light receiving unit attached to the centering work can receive the laser light from the laser light emitter at a predetermined position.

[0003]

However, in the conventional centering device for elevator guide rails, the laser emitter is installed with reference to the guide rail that has already been centered, and the laser light from this laser emitter is received by the laser. Since the center part received light and performed centering, if there is an error in the installation accuracy of the reference guide rail, an installation error will also occur in the guide rail to be centered above it, and this installation error will be accumulated. Then, the installation accuracy will be extremely poor.
To fix the guide rail at the centering position,
Since the bracket that was temporarily fixed was moved with a hammer so that the laser beam was aligned with the light receiving part of the centering work, it was a laborious task to perform temporary fixing and final fixing of the bracket, which was inefficient. Further, since the position adjustment with this hammer requires delicate force adjustment, the adjustment work requires skill, and it is difficult to accurately install the guide rail.

An object of the present invention is to provide an elevator guide rail centering device which can easily and accurately center and fix the guide rail using a laser.

[0005]

In order to achieve the above object, the present invention provides an elevator guide rail centering device for irradiating a laser beam in a hoistway and centering a rail member on the basis of the laser beam. , A laser light emitter is arranged at a predetermined position under the hoistway, is supported by a car work floor that hoists in the hoistway, and extends and abuts the facing hoistway wall to lift the base member. An extension contact device fixed between the walls, a light receiving portion of the laser beam supported by the base member, a position adjustment device capable of position adjustment in the same plane as the extension direction of the extension contact device, and the position adjustment A gripping device that is supported by the base member via a device and is capable of gripping the rail member is provided.

As described above, in the centering device for the elevator guide rail of the present invention, the laser light emitting device is simply arranged at the position where the conventional piano wire is stretched, so that the laser beam with high accuracy can be vertically aligned. Since the irradiation can be performed, the rail member can be displaced based on this laser light to perform high-accuracy centering, and moreover, the positioning portion having the base member, etc. Since the supporting and fixing device releasably supports the hoistway wall, and the position of the rail member can be adjusted by the gripping device via the position adjusting device, it is necessary to temporarily fix the rail member to support the whole as in the conventional case. At the same time, there is no need for position adjustment work with a hammer or the like, and the centering can be easily performed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a perspective view and a plan view showing a state in which an elevator guide rail centering device according to an embodiment of the present invention is used, and FIG. 2 is a center of the elevator guide rail shown in FIG. It is a perspective view which shows the principal part of a dispensing apparatus. At both ends of the cylindrical base member 30, extension contact devices 331 and 332 that can extend in the axial direction of the base member 30 are respectively configured. One of the extension contact devices 331 is an extension member 33a attached to the base member 30 so as to be slidable in the axial direction as shown in FIG. 3, and a tip end of the extension member 33a. It has an abutting body 31a made of an elastic body such as rubber, and a releasable holding mechanism for fixing the extension member 33a to the base member 30 when the abutting body 31a abuts the hoistway wall 3a. This holding mechanism is represented by the lever 32a. In addition, the extension contact device 332 provided on the other side of the base member 30 includes an extension member 33b attached to the base member 30 so as to be slidable in the axial direction as shown in FIG. An abutment body 31b made of an elastic material such as rubber that abuts the hoistway wall 3b, and when the abutment body 31b abuts the hoistway wall 3b, the extension member 33b is attached to the base member 30.
It is configured to have a releasable holding mechanism that is fixed to the holding member. The holding mechanism includes an pushing clamp 35 connected to the contact member 33b, a lever 35a that gives a pushing force to the pushing clamp 35, and a pushing clamp. 35 and a lever 35a are attached to the base plate 34, and a lever 32b for fixing the base plate 34 to the base member 30.
It is composed of

On the sides of the extension contact devices 331 and 332,
There is a gauge member 38 movably inserted and juxtaposed in the guide member 18 fixed to an appropriate position of the base member 30, so that the gauge member 38 is axially adjusted by a first position adjusting device 42. Is configured. The first position adjusting device 42 includes a female screw portion 36 that is coupled to the base member 30, and a connecting portion 42b that connects the female screw portion 36 with an x-direction adjusting screw portion 37, and an x-direction adjusting screw portion 37. Of the dial member 42a, which is attached to the dial member 42a to displace the gauge member 38 in the axial direction thereof via the connecting member 42b, that is, the x direction which is the direction in which the extension contact devices 331, 332 slide, and the gauge member 38. Holding portions 38a, 38b respectively coupled to both ends
It is composed of

The maintenance parts 38a and 38b are respectively provided with second position adjusting devices 481 and 482 which can be displaced in the y direction which is a direction perpendicular to the above-mentioned x direction. The second position adjusting device 481 includes a connecting portion 72a fixed to the holding portion 38a and a y-direction adjusting screw portion 47a extending in the y direction and fitted into the connecting portion 72a as shown in FIG.
A dial portion 48a coupled to the front end of the y-direction adjusting screw portion 47a, a female screw portion 46a screwed at the other end of the y-direction position adjusting screw portion 47a, and a lower portion of the female screw portion 46a. And a base plate 71a slidably supported with respect to the holding portion 38a. By rotating the dial portion 48a, the base plate 71a is extended / contacted by the extension contact devices 331, 33.
It can be displaced in the y direction, which is the direction perpendicular to the direction in which 2 slides. In addition, the second position adjusting device 482
Is a connecting portion 72b fixed to the holding portion 38b, and a y connecting to the connecting portion 72b extending in the y direction as shown in FIG.
Direction adjustment screw portion 47b and this y-direction adjustment screw portion 47b
Dial portion 48b joined to the front end of the female screw portion 46b screwed to the other end of the y-direction adjusting screw portion 47b.
And a base plate 71b which is coupled to the lower portion of the female screw portion 46b and slidably supported with respect to the holding portion 38b.
By rotating b, the base plate 71b is moved to y
Direction can be displaced.

On these base plates 71a, 71b, gripping devices 45a, 45b for gripping the rail members 4a, 4b in a releasable manner are formed. The gripping devices 45a, 45b are movable back surface contact portions 39a, 39b that move so as to contact the back surfaces of the rail members 4a, 4b and retract the rail members 4a, 4b, and the rail members 4a, 4b.
Surface abutting portions 40a, 40b that come into contact with the guide surface of
And pull clamps 44a, 44b for holding the rail members 4a, 4b in a pressure-fitting condition. The movable back surface contact portions 39a, 39b and the guide surface contact portions 40a, 40b.
And the rail members 4a and 4b in a region surrounded by the fixed reference surfaces 41a and 41b located opposite to the movable back surface abutting portions 39a and 39b, and the pull clamps 44a and
When the rail 44b is operated, the rail members 4a and 4b are sandwiched. In addition, the base plates 71a, 7
Reference members 411 and 412 are fixedly coupled to the upper part of the reference numeral 1b, respectively, and the reference members 411 and 412 hold the rail members 4a and 4b between them with the gripping devices 45a and 45b. And a light-receiving section 4 for receiving laser light that irradiates the hoistway upward along the vertical line.
It is composed of 3a and 43b.

The light receiving portions 43a and 43b correspond to the laser light emitting devices 100A and 100B arranged at predetermined positions in the pit 3C in the lower part of the hoistway of FIG. 1, and the laser light emitting device 100A is shown in FIGS. This will be described with reference to perspective views and plan views. The laser pointer 101 for irradiating the laser beams 1a and 1b is vertically supported with respect to the first cylindrical support body 102, and the second cylindrical support body 103 is arranged so as to surround the first cylindrical support body 102. ing. The first cylindrical support body 102 penetrates the second cylindrical support body 103 through the X-axis and is mounted symmetrically with respect to the Y-axis.
It is rotatably supported around the X axis by a and 104b. Further, the second cylindrical support body 103 is a box body 105.
Support pins 104c and 104d that are surrounded by the pen body and penetrate the Y axis of the box body 105 and are attached symmetrically with respect to the X axis.
It is rotatably supported by the Y axis. A weight portion 106 is attached to a lower portion of the first cylindrical support body 102, and the first cylindrical support body 102 and the second cylindrical support body 103 are operated by the principle of a pendulum on which the weight portion 106 acts. Are always horizontal with the X and Y axes as fulcrums, respectively. Therefore, the first cylindrical support 10
Laser beams 1a and 1b emitted from a laser pointer 101 which is vertically supported with respect to 2 always maintain verticality and emit light to the upper portion. This laser pointer 101 is supported downward by a first cylindrical support 102 in FIG. 4, and if a weight is provided in the vicinity of the laser irradiation portion, downward vertical laser beams 1a and 1b are obtained, and FIG. The light receiving portions 53a and 43b and the laser light emitters 100A and 1 shown in FIG.
The position of 00B can be exchanged and installed.

Next, the centering work of the rail members 4a and 4b using the above-described centering device for the elevator guide rail will be described. When centering the rail members 4a and 4b, first, as shown in FIG. 1, the laser light emitters 100A and 10A are placed at predetermined positions in the pit 3C below the hoistway.
0B is installed, which determines the position of the laser pointer 101 of the laser emitters 100A and 100B so that the laser beams 1a and 1b are generated at the position where the conventional piano wire is stretched. Next, as shown in FIG. 3, the contact extension devices 331, 332 are installed on the handrail 50 of the work floor 8 provided in the car in a state in which the contact extension devices 331, 332 are retracted to the innermost side with respect to the base member 30. However, at this time, the gripping devices 45a, 45
b is not in the position where the rail members 4a and 4b are pulled in by the pulling clamps 44a and 44b, but is in the opened state as illustrated. In this state, the car is moved and stopped so that the work floor 8 comes to the predetermined installation and fixed position of the rail members 4a, 4b. While the car is moving, the reference members 411, 412 and the rail members 4a, 4b, In order to prevent the entire centering device of the elevator guide rail from being unbalanced due to the contact of 4b, the holding portions 38a and 38b are provided with balance plates 51a and 51b, respectively, and the balance plates 51a and 51b are placed on the handrail 50. Engaged. Since the balance plates 51a and 51b are engaged with the holding portions 38a and 38b so as to be vertically displaceable, the vertical position adjustment of the entire positioning portion 200 can be performed here.

Next, when the car is moved to the centering position of the rail members 4a and 4b, as shown in the plan view of FIG. 6, the abutment body 3 provided at the end of the extension abutment device 332.
The extension member 33b is slid until 1b comes into contact with the hoistway wall 3b, and then the lever 32b is rotated to the position shown in FIG. 3 to suppress the extension member 33b from sliding and to be fixed to the base member 30. Next, as shown in the plan view of FIG. 7, the extension member 33a is slid until the contact body 31a provided at the end of the extension contact device 331 contacts the opposite hoistway wall 3a, and then the lever 32a is shown in FIG.
The rotation of the extension member 33a is suppressed by the rotation to the position to fix it to the base member 30. That is,
In the state of FIG. 7, the extension contact devices 331, 33
2 is abutted and held by the hoistway walls 3a and 3b in a state of being fixed and integrated with the base member 30. next,
As shown in the front view of FIG. 8, when the lever 35a is tilted in the direction of arrow 51 to give a pushing force in the direction of arrow 52 to the contact body 31b via the push-out clamp 35 and the extension member 33b, the extension force is applied. A reaction force is also generated in the direction of arrow 53 in the extension contact device 331 that is held integrally with the contact device 332, and the contact member 3 is made of an elastic material such as rubber.
Since 1a and 31b contact the hoistway walls 3a and 3b and bend,
The base member 30 and the extension contact devices 331, 332 are firmly held by the constant tension force on the hoistway walls 3a, 3b.

If the positioning portion 200 of the centering device for the elevator guide rail is thus held by the constant tension force against the hoistway walls 3a, 3b, then the gripping device as shown in the plan view of FIG. The rail members 4a and 4b are clamped and held by 45a and 45b, but at present, they are in an open state as shown in the plan view of FIG. Therefore,
Lever portion 5 of pulling clamp 44a of gripping device 45a
When 5a is pulled, the rail member 4a is pulled in by the back contact portion 39a as shown in the plan view of FIG.
The rail member 4a is clamped and held between a, the guide surface contact portion 40a, and the reference surface 41a of the reference member 411. When this is pulled in, the rail member 4a tilts,
The angle of the tension clamp 44a is set so that a pulling force is applied to the rail member 4a in the direction of the arrow 56, that is, in the direction of the center of gravity 57 of the rail member 4a so that an unreasonable force is not applied to the tension clamp 44a.
Further, the gripping device 45b is also configured in the same manner, and holds the rail member 4b under pressure.

Next, a description will be given of the position adjusting work of the rail members 4a and 4b, which are indirectly fixed to the hoistway walls 3a and 3b, to the centering positions. First, the dial portion 42a of the first position adjusting device 42 attached to the gauge member 38 shown in FIG. 2 is rotated to displace the gauge member 38 in the x direction, and a holding member connected to both ends of the gauge member 38. 38a and 38b are displaced in the x direction. Since gripping devices 45a and 45b for gripping the rail members 4a and 4b are provided above the holding members 38a and 38b, the positions of the rail members 4a and 4b are also adjusted to the dial portion 42a of the first position adjusting device 42. Of the laser light 1a, 1b and the central portions 58a, 5 of the light receiving portions 43a, 43b.
If the operation of the dial portion 42a is stopped after the distance between the rail member 4a and 4b, that is, the x dimension shown in FIG. 11 is within the allowable value, the rail members 4a and 4b are centered at the position in the x direction in the hoistway. Is kept in a closed state.

Next, the second position adjusting devices 481, 48
The second dial portions 48a and 48b are rotated to displace the base plates 71a and 71b in the y direction. Above the base plates 71a, 71b, rail members 4a,
Since the gripping devices 45a and 45b that grip the 4b are supported, the rail members 4a and 4b are also displaced as they are. While displacing the rail members 4a and 4b in the y direction, the dials are arranged so that the distance between the laser beams 1a and 1b and the central portions 58a and 58b of the light receiving portions 43a and 43b, that is, the Y dimension in FIG. Parts 48a, 48b
When the operation is stopped, the rail members 4a and 4b are held in a state where the rails 4a and 4b are centered in the y direction in the hoistway. In this way, when the predetermined centering position to which the rail members 4a and 4b should be attached is determined, the rail members 4a and 4b
4b, the rail bracket is assembled and the rail members 4a and 4b are permanently fixed to the hoistway walls 3a and 3b.
In this work, the work of temporarily fixing the rail member, which was required in the conventional example, can be omitted, and the position adjusting work can be performed easily and accurately.

After that, when the main fixing of the rail members 4a, 4b is completed, the pull clamps 44a, 44b are returned, and the rail members 4a, 4b by the gripping devices 45a, 45b.
The holding of b is released, and the lever 35 of the extrusion clamp 35 is released.
a in the direction opposite to the arrow 51, and the levers 32a, 3
2b is returned to the original position, and the extension members 33a and 33b are pulled inward to the state shown in FIG. 3 before the start of work. The elevator car can then be moved to the next working position. Thus, the rail members 4a, 4b
The gripping and releasing operations can be easily performed by operating the pull clamps 44a and 44b provided on the gripping devices 45a and 45b.

According to the above-described embodiment, the laser pointer 10 which irradiates the laser light emitters 100A and 100B with the laser beams 1a and 1b by the principle of the pendulum of the weight portion 106.
The laser pointer 101 is arranged so that the laser light 1a and 1b are generated at the position where the conventional piano wire is stretched. Since the rail members 4a and 4b can be positioned with reference to 1a and 1b, it is possible to suppress errors and perform highly accurate centering. Further, the positioning unit 200 is attached to the extension contact devices 331 and 332 and the holding device 63.
Since the rail members 4a and 4b are supported so as to be releasable on the hoistway wall by the supporting and fixing devices such as a and 63b and the rail members 4a and 4b can be adjusted in position, the rail member 4 as in the prior art.
It is no longer necessary to temporarily fix a and 4b to support the entire structure, or to perform position adjustment work with a hammer or the like for temporary fixing, and the first position adjusting device with respect to the base member 30 supported on the hoistway wall. 42 and second position adjusting device 4
The rail members 4a and 4b can be displaced while operating 81 and 482 to easily perform centering.

The centering device for the elevator guide rail of the above-described embodiment is the extension contact device 331,332.
While the positioning portion 200 is releasably supported between the hoistway walls by means of the holding devices 63a and 63b, it is releasably supported by the hoistway walls by a supporting and fixing device having another structure which is a combination of the extension contact device and the holding device. Alternatively, the gripping devices 45a, 45b for gripping the rail members 4a, 4b and the position adjusting devices 42, 481, 482 for adjusting the positions of the gripping devices 45a, 45b in the x-direction and the y-direction may have other configurations. Is also good.

[0020]

As described above, in the centering device for the elevator guide rail according to the present invention, since the laser light emitter is arranged at a predetermined position in the lower part of the hoistway, the laser beam is placed at the position where the conventional piano wire is stretched. Just place the pointer,
It is possible to easily irradiate the laser beam with high accuracy vertically, and to displace the rail member based on this laser beam to perform high-accuracy centering. Since it is supported by the supporting and fixing device such as a device so that it can be released to the hoistway wall, and the rail member is gripped by the gripping device via the position adjusting device to adjust the position, the rail member is temporarily fixed and the whole It is not necessary to support and the position adjustment work with a hammer or the like is not necessary, and the centering can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a centering device for an elevator guide rail according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a positioning portion of the centering device for the elevator guide rail shown in FIG.

3 is a plan view of a centering device for the guide rails of the elevator shown in FIG.

4 is a perspective view of a laser emitter of the elevator guide rail centering device shown in FIG. 1. FIG.

5 is a plan view of the laser light emitter shown in FIG. 4. FIG.

FIG. 6 is a plan view showing an intermediate state of work of a positioning portion of the centering device for the elevator guide rail shown in FIG.

FIG. 7 is a plan view showing another state of the positioning portion of the centering device for the elevator guide rail shown in FIG. 1 during another operation.

FIG. 8 is a plan view showing another intermediate state of the positioning portion of the centering device for the elevator guide rail shown in FIG.

9 is a plan view showing another intermediate state of the positioning portion of the centering device for the elevator guide rail shown in FIG. 1. FIG.

10 is an enlarged plan view of an essential part of the centering device for the elevator guide rail shown in FIG. 3. FIG.

11 is an enlarged plan view of an essential part of the centering device for the elevator guide rail shown in FIG. 9. FIG.

[Explanation of symbols]

 1a, 1b Laser light 3 Hoistway 3a, 3b Hoistway wall 4a, 4b Rail member 8 Working floor 30 Base member 42 First position adjusting device 43a, 43b Light receiving part 45a, 45b Grasping device 106 Weight part 200 Positioning part 331, 332 extension contact device 481,482 second position adjusting device

Claims (2)

[Claims] 1. An elevator guide rail centering device for irradiating a laser beam in a hoistway and centering a rail member on the basis of the laser beam, wherein a laser emitter is arranged at a predetermined position under the hoistway. And an extension abutment device that is supported by the work floor of the elevator car that moves up and down in the hoistway, and extends and abuts the opposing hoistway walls to fix the base member between the hoistway walls, and the base member. The supported laser beam receiving portion, a position adjusting device capable of position adjustment in the same plane as the extension direction of the extension abutting device, and the rail supported together with the base member via the position adjusting device. A gripping device capable of gripping a member, and a centering device for an elevator guide rail. 2. The laser emitting device according to claim 1, wherein the laser light emitter variably supports an irradiation direction of the laser light and a weight portion is provided in an axial direction of the laser pointer. Centering device for elevator guide rails.