JPH09202564A - Centering device for guide rail for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform centering of a guide rail in a short time with high precision without being influenced by the skill of a worker. SOLUTION: The grasping devices 45a and 45b of a guide rail centering device are provided with back contact parts 39a and 39b and guide surface contact parts 40a and 40b. Further, the grasping devices 45a and 45b are fixed at a steel structure building constituting member through the grasping devices 45a and 45b and holding devices 63a and 63b. With this stable state, movement to a given position is practicable based on a piano wire.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide rail centering device for an elevator, which is erected in a hoistway of an elevator and guides a car or the like.

[0002]

2. Description of the Related Art FIG. 11 is a diagram for explaining a work for standing a rail member in a hoistway of an elevator, and FIG. 12 is a flowchart showing a work procedure for standing a rail member in the hoistway of FIG. FIG. 13 is a perspective view showing a state where each rail member is centered by a conventional example of a guide rail centering device, and FIG. 14 is a centering device for centering and installing a rail member in a hoistway of a steel frame structure by a conventional centering device. FIG. 15 is a plan view showing a method of performing the method, and FIG. 15 is a side view of FIG.

Generally, in an elevator, FIG. 11 and FIG.
As shown in FIG. 3, a pair of piano wires 1 a, 1 are provided in the hoistway 3.
b is stretched, and a plurality of rail members 4a to 4n and the like are sequentially erected over the entire length of the hoistway 3 with one piano wire 1a as a reference and connected to each other to obtain an integrated guide rail 4. Similarly, a plurality of rail members 5a, 5b and the like are sequentially erected over the entire length of the hoistway 3 and connected to each other by using the other piano wire 1b as a reference, thereby forming an integrated guide rail. To get 5.

The standing work of the guide rails 4 and 5 is performed according to the work procedure shown in FIG.

That is, first, in step S1, a pair of piano wires 1a and 1b are set with reference to a predetermined position of a building (not shown).
Is hung from the machine room 2 into the hoistway 3, and in step S2, the lowermost rail member 4n is centered on the lower part of the hoistway 3 and fixed via a rail bracket (not shown). The lowermost rail member is erected and centered and fixed with the piano wire 1b as a reference.

Then, in step S3, as shown in FIG. 11, the rail member 4a is lifted by driving the winch 6, the lower end of this rail member 4a is connected to the upper end of another rail member 4b, and these connections are made. Rail member 4
a and 4b are lifted up, and the lower ends of the rail members 4b are connected to the upper ends of the other rail members 4c.
a, 4b, 4c, etc. are sequentially connected over the entire length of the hoistway 3, and then the rail members 4a, 4a are connected in step S4.
The lower ends of b, 4c, etc. are connected to the upper ends of the lowermost rail members 4n to obtain an integrated guide rail 4, and the upper ends of the integrated guide rails 4, that is, the upper ends of the rail members 4a are set to the floor of the machine room 2. Hold by 2a.

Similarly, an integrated guide rail 5 including the other rail members 5a and 5b is obtained, and the upper end thereof is held on the floor 2a of the machine room 2.

Then, in step S6, the car frame 7 and the working floor 8 which engage with the lowermost rail member 4n and the lowermost rail member (not shown) of the other guide rail 5 are set in the machine room 2.
It is lifted by driving a hoist (not shown) inside, and the worker on the work floor 8 moves the rail members 4a, 4
b, 4c and 5a, 5b are centered and fixed.

The conventional centering device 9 shown in FIG.
Is a rod-shaped base portion 10 placed on the work floor 8 and extending in the horizontal direction, a grip body 11 and a reference portion 12 provided at one end of the base portion 10, and a grip portion provided at the other end of the base portion 10. It is composed of a body 13 and a reference portion 14.

The one gripping body 11 is capable of gripping the rail member 4a and the like constituting the guide rail 4, and the reference portion 12
Is formed with a reference surface 12a in the X direction (that is, the horizontal direction in FIG. 14) at one end thereof, and a reference line 12b in the Y direction (that is, the vertical direction in FIG. 14) is attached to the upper surface of the reference portion 12, and similarly, The gripping body 13 is capable of gripping a rail member 5a or the like that constitutes the other guide rail 5, and a reference surface 14a in the X direction is formed at one end of the reference portion 14, and a reference line 14b in the Y direction is formed on the upper surface of the reference portion 14. Is attached.

Rail member 4 using this centering device 9
The method of centering and fixing a and 5a is performed as follows.

When the hoistway has a steel frame structure, there is no hoistway wall for mounting the rail bracket. Therefore, as shown in FIGS. 14 and 15, the rail bracket is attached to a building member such as a fastener plate 62.

First, in the case of the left rail member 4a in the drawing, the guide portion 41a of the rail member 4a is gripped by the grip body 11, and in this state, the fixing portion 42a of the rail member 4a is fixed to the rail clip 15a. Temporarily fix.

The rail clip 15a is connected to a car side bracket 15b, and the car side bracket 15b is connected to a hoistway side bracket 15c.

The mounting position of the hoistway bracket 15c to the fastener plate 62 is set to the piano wire 1
A mark is made on the fastener plate 62 using a ruler 91 based on a, and a fixture 90 is used at the marked position to tighten the operation portion 90a to attach the hoistway bracket 15c.

Similarly, the rail member 5a is attached to the fastener plate 62 via the rail clip 16a, the car side bracket 16b, and the hoistway side bracket 15c.

At this time, the rail members 4a, 5a are fixed at the positions where the predetermined cores are provided in the Y direction.

The position adjustment in the X direction is performed by hitting the car-side brackets 15b and 16b in the same manner as described above.

After centering the rail members 4a, 5a in this manner, the fixing bolts of the rail brackets 15b, 16b are finally tightened to make the rail brackets 15c, 16c,
The rail members 4a and 5a are permanently fixed to the fastener plate 62 by being joined to the fastener plate 62 by welding or the like.

An example of such a centering device is disclosed in Japanese Patent Application Laid-Open No. 61-127583.

[0021]

By the way, in the above-mentioned conventional guide rail centering device, the rail member 4a,
5a is gripped by the rail clips 15a and 16a and temporarily fixed to the rail brackets 15b, 15c, 16b and 16c, and then the reference portion 1 is set with the piano wires 1a and 1b as a reference.
Hit the rail brackets 15b, 15c, 16b, 16c so that 2 and 14 are arranged at predetermined positions, and press X
Since it is necessary to move the rail members 4a and 5a in the Y direction and the Y direction to perform centering and then permanently fix the rail members 4a and 5a, it takes a lot of time to adjust the position, which is a factor of deteriorating work efficiency. .

Further, while the operator visually confirms the distance from the piano wire 1a to the reference plane 12a and the reference line 12b and the distance from the piano wire 1b to the reference plane 14a and the reference line 14b, the operator strikes the rail bracket at the position. Although the adjustment is performed, since this work is a delicate adjustment, the centering accuracy varies depending on the skill of the operator, and there is a concern that the centering accuracy may be lowered depending on the operator.

The present invention has been made in view of the actual situation in the prior art as described above, and an object thereof is to accurately guide the guide rail in a short time in a building having a steel frame structure without being influenced by the skill level of an operator. An object of the present invention is to provide a centering device for an elevator guide rail that enables good centering.

[0024]

As described above, the present invention has the following features.
In a centering device for an elevator guide rail, in which a rail member is arranged at a predetermined position in the hoistway with a piano wire hanging in the hoistway formed by a steel frame member as a reference, the above-mentioned devices provided at both ends of a base member. A holding device for extending the hoistway side and a holding device provided on the hoisting device and having a displacing means capable of displacing in a plane parallel to the side face of the hoistway and detachably supporting the base member on the steel frame member. And a gripping device that is supported by the base member via a position adjusting device that can adjust the position and that grips the rail member.

According to the present invention, as described above, the centering device for the rail members which are erected in the hoistway provided in the building having the steel frame structure, and each structure of the building to which these rail members are attached by the holding device are provided. Since it is indirectly fixed to a member and the gripping device can be moved to a predetermined position with the piano wire as a reference in this stable state, the rail member can be easily referred to the piano wire with high accuracy in a short time. It can be centered in place.

Further, since the holding device can be displaced in the plane parallel to the side surface of the hoistway by the displacing means, the holding device can be oriented in any direction of the side surface of the hoistway when the holding device is arranged. The steel frame member can be gripped by displacing the steel plate.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an elevator guide rail centering device according to an embodiment of the present invention, and FIG. 2 shows a state in which the elevator guide rail centering device is arranged on a handrail of a work floor. It is a top view.

First, the structure of the guide rail centering device of this embodiment will be described with reference to FIGS.

At both ends of the cylindrical base member 30, a stretching device 331 capable of axially stretching the base member 30,
332 is configured respectively. One expansion device 33
As shown in FIG. 2, reference numeral 1 denotes an extension member 33a axially slidably attached to a base member 30, and a steel frame member 61 provided at the tip of the extension member 33a to form a hoistway, or A holding device 63a for detachably supporting the base member 30 on a fastener plate 62 connected to the steel plate member 6 and the holding device 63a.
1 has a holding mechanism 32a for fixing the extension member 33a to the base member 30 in a releasable manner, and the holding mechanism 32a is represented by a lever. In addition, the expansion device 332 provided on the other side of the base member 30.
Is similarly configured.

A guide member 18 fixed to an appropriate position of the base member 30 is engaged with a side portion of each of the expansion devices 331 and 332, and the guide member 18 guides the guide member 18 to displace it in parallel with the base member. A gauge member 38, and the gauge member 38 is configured to be moved and adjusted in the axial direction by a first position adjusting device 42. The first position adjusting device 42 includes a female screw portion 36 that is coupled to the base member 30 and a connecting portion 42 b that connects the female screw portion 36 with an x-direction adjusting screw portion 37 that is screwed into the female screw portion 36, and an x-direction adjusting screw portion 37. Is attached to the gauge member 38 by rotating the gauge member 38 via the connecting member 42b, that is, the direction in which the extension devices 331 and 332 slide.
Dial portion 42a for displacing in the direction and the gauge member 38
And holding portions 38a and 38b respectively coupled to both ends of the.

The holding portions 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 connected 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 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 in a direction perpendicular to the direction in which the extension devices 331 and 332 slide. It can be displaced in the y direction. In addition, the second position adjusting device 482 includes the holding unit 3
8b, a connecting portion 72b fixed to the connecting portion 72b, a y-direction adjusting screw portion 47b extending in the y-direction and fitted to the connecting portion 72b, and a front end portion of the y-direction adjusting screw portion 47b. Dial part 48b and y-direction adjusting screw part 4
The dial portion 48b is composed of a female screw portion 46b screwed on the other end side of 7b 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. The base plate 71b can be displaced in the y direction by rotating.

On the base plates 71a, 71b of the holding portions 38a, 38b, gripping devices 45a, 45b for releasably gripping the rail members 4a, 4b are formed. Since the gripping devices 45a and 45b have the same configuration, the gripping device 45a shown in FIG. 6 will be described here, and the configuration of the gripping device 45b is denoted by reference numeral b.
Is attached and the description thereof is omitted. The gripping device 45a is
A rear contact portion 39a that contacts the rear surface of the rail member 4a,
Guide surface contact portion 4 that contacts the guide surface of the rail member 4a
0a and a tension clamp 44a for holding the rail member 4a in a sandwiched state, and a back contact portion 39a,
The rail member 4a is arranged in a region surrounded by the guide surface contact portion 40a and a reference surface 41a, which will be described later, and when the pulling clamp 44a is operated, the rail member 4a is clamped. A reference member 411 is fixedly coupled to the base plate 71a.
Reference numeral 1 denotes a reference surface 41a that holds the rail member 4a with a gripping device 45a while holding it, and a piano wire 1 that hangs down in the hoistway.
The reference plate 43a serves as a reference for the relative position between the hanging position of a and the centering device of the elevator guide rail.

Further, the holding devices 63a and 63b have the same structure at the end portions of the extension members 33a and 33b, and here, the holding device 63a is taken as an example and its enlarged plan view and FIG. This will be described with reference to FIG. As shown in the figure, the holding device 63a includes the extension member 3
3a, a lower shaft portion 64a that is fitted so as to be displaceable in the vertical direction, a dial stopper 66a that releasably engages the lower shaft portion 64a with the extension member 33a, and a lower shaft portion 64.
a and an upper shaft portion 78a that is rotatably connected via a displacement means 77a, a steel frame member 61 that is provided on the upper shaft portion 78a and is a constituent member of a building with a steel frame structure, or a fastener plate connected to this. Clamp 80 for holding 62
a. The clamp portion 80a includes an upper receiving portion 81a and a lower receiving portion 69a coupled to an upper portion of the upper shaft portion 78a, and a holding plate 70a attached to the upper receiving portion 81a via a plurality of connecting members 82a so as to be vertically displaceable.
And a screw body 68a that is screwed into the upper receiving portion 81a and has its lower end abutted against the pressing plate 70a, and this screw body 68a.
By connecting it to a and rotating it, the screw body 68
and a holding lever 67a for converting a into a vertical movement. Here, the steel frame member 61 is a structural member made of steel such as H steel which is a structural member of the building, and the fastener plate 62 is a rail bracket welded to the steel frame member 61 to fix the rail member 4a. It is a component fixed by welding.

Next, the centering work of the rail members 4a and 4b performed by using the above-described centering device for the guide rails of the elevator will be described.

When centering the rail members 4a and 4b, first, as shown in FIG. 2, the base member 30 is placed on the handrail 50 of the work floor 8 provided on the car.
On the other hand, the extension devices 331 and 332 are installed in a state of being retracted to the innermost side and contracted.
The positions a and 45b are not in the positions where the rail members 4a and 4b are pulled in by the tension clamps 44a and 44b, but are in the opened state as shown in the drawing. In this state, the car is moved and stopped so that the work floor 8 comes to a predetermined installation and fixed position of the rail members 4a and 4b. While the car is moving, the reference members 411 and 412 and the rail member 4 are moved.
In order to prevent the a and 4b from coming into contact with each other and causing the elevator guide rail centering device as a whole to lose balance, the holding portions 38a and 38b are respectively provided with balance plates 51a and 5b.
1b is provided, and the balance plates 51a and 51b are engaged with the handrail 50.

After this state, the holding device 63
Although a and 63b are held by the steel frame member 61 or the fastener plate 62, which is a structural member of the building, the method will be described with reference to FIGS.

3 and 4 are plan views of the centering device showing a holding state of the holding device on the steel frame member. First,
The work floor 8 provided in the car has rail members 4a and 4b.
If the car is moved so as to reach the predetermined fixed position for installation and stopped, as shown in FIG.
The clamp portion 80a of the holding device 63b is attached to the steel member 61.
Alternatively, the fastener plate 62 is horizontally slid to a grippable position, and the lever 32b of the holding mechanism is rotated to the position shown in FIG. 3 to suppress the sliding of the extension member 33a and fix the extension member 33a to the base member 30. Then, in order to hold the holding device 63a shown in FIG. 8 on the fastener plate 62, the dial stopper 66a of the holding device 63a is rotated and loosened, and the clamp portion 80a of the holding device 63a is at a position where the fastener plate 62 can be held. The shaft portion 64a is moved vertically to the clamp portion 80
The fastener plate 62 is sandwiched between the lower receiving portion 69a of the pressing plate 70a of a and the dial stopper 66a is rotated and tightened in this state, and the shaft portion 64a is fixed to the extension member 33a. Next, the holding lever 67a is rotated to move the screw body 68a to the lower side, and the pressing plate 7
A downward pressing force is applied to 0a to hold the fastener plate 62 by holding a certain gripping force between the pressing plate 70a and the lower receiving portion 69a. This gripping operation is performed after it is confirmed that the fastener plate 62 is sufficiently deep inside the clamp portion 80a so that the screw body 68a of the holding lever 67a effectively acts as a gripping force.

Further, the gripping work on the steel frame member when the steel frame member is vertically arranged by the design of the building will be described with reference to FIG.

FIG. 10 is a plan view showing a holding state of the holding device on a steel frame member arranged vertically. When the steel frame member 61 is in the state shown in FIG. 10, the lower shaft portion 64a
And the upper shaft portion 7 rotatably connected by the displacement means 77a.
8a is rotated 90 degrees in the direction of arrow 79, in the direction of the front side in FIG. 8 with the displacement means 77a as a fulcrum.
In this way, by making the clamp portion 80a displaceable in a plane parallel to the side surface of the hoistway in which the steel member 61 is arranged, even when the orientation of the steel member 61 as shown in the drawing is different from the normal direction, the clamp portion 80a is clamped. The pressing plate 70a of the portion 80a and the lower receiving portion 69
The steel member 61 is sandwiched between it and the holding lever 67a.
The holding device 63 a can be held by the steel frame member 61 by rotating the screw member 68 a to move the screw member 68 a and pressing the pressing plate 70 to hold the holding member 63 a.

Further, the other holding device 63b is operated in the same manner as the holding device 63a, so that the extension member 3 can be operated.
3a and 33b are integrated with the base member 30 and are fixed to the building with a constant holding force.

When the centering device for the guide rails of the elevator is fixed to the steel frame member 61 forming the hoistway with a constant holding force as described above, the gripping devices 45a and 45b are then used as shown in FIG. The rail members 4a and 4b are held in a sandwiched state. This pressure holding work will be described with reference to FIGS. In the drawings, FIG. 5 is a plan view of the centering device showing a gripping state of the rail member by the gripping device, and FIGS. 6 and 7 are enlarged plan views of the gripping device showing a method of gripping the rail member.

At present, as shown in FIG. 6, the gripping device 45
a and 45b are in an open state. Therefore, the lever portion 55a of the pulling clamp 44a of the holding device 45a.
When the rail member 4a is pulled, the rail member 4a is pulled in at the rear surface contact portion 39a as shown in FIG. 7, and the rail member 4a is inserted between the rear surface contact portion 39a, the guide surface contact portion 40a, and the reference surface 41a of the reference member 411. It will be in the state of holding pressure. At this time of pulling in, the rail member 4a is not tilted or an unreasonable force is applied to the pulling clamp 44a, so that the rail member 4a is not pulled.
The angle of the tension clamp 44a is set so that a pulling force is applied to a in the direction of arrow 56, that is, in the direction of the center of gravity 57 of the rail member 4a. Further, the similarly structured gripping device 45b is operated to bring the rail member 4b into the state of being held by the clamping force.

Next, a description will be given of the position adjustment work of the rail members 4a and 4b, which are indirectly fixed to the steel frame member 61 forming the hoistway, to the centering position.

First, the dial portion 42a of the first position adjusting device 42 attached to the gauge member 38 shown in FIG. 1 is rotated to displace the gauge member 38 in the x direction, and the dial member 42 is connected to both ends of the gauge member 38. Holding members 38a, 38
Displace b in the x direction. The holding members 38a, 38b
Since the gripping devices 45a and 45b for gripping the rail members 4a and 4b are formed in the upper part of the rail member 4a,
The positions of a and 4b are also displaced by the rotation of the dial portion 42a of the first position adjusting device 42, and the intervals between the piano wires 1a and 1b and the reference plates 43a and 43b, that is, the x dimension shown in FIG. You can Therefore, the rail members 4a and 4b are held in a state in which the core at the position in the x direction in the hoistway is extended.

Next, the second position adjusting devices 481 and 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 are rail members 4a,
Since the gripping devices 45a and 45b that grip the 4b are configured, 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 gap between the piano wires 1a and 1b and the marking lines 58a and 58b attached to the reference plates 43a and 43b, that is, Y in FIG.
Dial parts 48a, 4 so that the dimensions are within the allowable value
When the operation of 8b is stopped, the rail members 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 are to be attached is determined, the rail bracket is assembled according to the rail members 4a and 4b, and the rail member 4 is assembled.
Although a and 4b are permanently fixed to the steel frame member 90, the temporary fixing work of the rail member using the rail bracket, which was necessary in the conventional example in this work, can be omitted, and the position adjusting work can be easily performed. It can be done accurately.

After that, if book fixing to the building is finished,
The holding levers 67a, 67b and the dial stoppers 66a, 66b shown in FIG.
The fastener plate 62 or the steel member 61 is released from the holding state by the holding devices 63a and 63b by rotating b, for example. Next, the levers 32a and 32 shown in FIG.
By loosening b and pulling the extension members 33a and 33b inward, the work is in a state before starting, and it becomes possible to move to the next centering position together with the car.

As can be seen from these embodiments, the elevator guide rail centering device is provided with extension devices 331, 33.
The rail member 4 in which the base member 30 is detachably supported by the steel frame member 61 by a supporting and fixing device such as 2 and holding devices 63a and 63b, and is held by the holding devices 45a and 45b.
Since the positions a and 4b are adjustable, there is no need to support the rail members 4a and 4b and the entire device by using the rail bracket temporarily fixed to the steel frame member 61 as in the prior art, and the position adjustment work using a hammer or the like can be performed. There is no need to perform this, and the rail members 4a, 4b are operated while operating the first position adjusting device 42 and the second position adjusting devices 481, 482 with respect to the base member 30 supported by the steel frame member 61.
Can be displaced to easily perform centering.

In addition, since the holding devices 63a and 63b provided on the extension devices 331 and 332 can be displaced in a plane parallel to the side surface of the hoistway, the orientation of the steel frame is different from the normal orientation, and the vertical orientation is employed. Even if there is, the steel frame member 61 can be gripped.

In the elevator guide rail centering device of the above-described embodiment, the base member 30 is detachably supported on the steel member 61 by the extension devices 331 and 332 and the holding devices 63a and 63b. It may be detachably supported on the steel member by a supporting and fixing device having another structure such as a combination of holding devices.
The position adjusting devices 42, 481 and 482 for adjusting the positions of a and 45b in the x direction and the y direction may have other configurations.

[0051]

According to the centering device for an elevator guide rail of the present invention, even in a hoistway of a steel frame structure, the rail member is indirectly fixed to each structural member of the building and the rail is centered. Since it can be displaced to the position, the rail can be easily centered with high accuracy.

Further, since the rail bracket is attached to the cored rail and the rail bracket is fixed to each constituent member of the building, the rail is fixed to each constituent member of the building. Since the bracket does not require the work of temporarily fixing each component of the building, the work efficiency of the centering and fixing work can be significantly improved.

[Brief description of drawings]

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

FIG. 2 is a plan view showing a state in which the centering device of FIG. 1 is arranged on a handrail of a work floor.

FIG. 3 is a plan view showing a holding state of a holding device provided in the centering device of FIG. 1 on a steel frame member.

FIG. 4 is a plan view showing a holding state of a holding device included in the centering device of FIG. 1 on a steel frame member.

5 is a plan view showing a gripped state of the rail member by the centering device of FIG. 1. FIG.

FIG. 6 is a diagram for explaining the operation of the gripping device shown in FIG. 5, and is an enlarged plan view showing a state before gripping.

FIG. 7 is a diagram for explaining the operation of the gripping device shown in FIG. 5, and is an enlarged plan view showing a state after gripping.

FIG. 8 is an enlarged side view of FIG.

FIG. 9 is an enlarged plan view illustrating the holding device shown in FIG. 1.

FIG. 10 is a plan view illustrating the holding device shown in FIG.

FIG. 11 is a diagram illustrating a work of vertically installing a rail member in a hoistway of a conventional elevator.

FIG. 12 is a flow chart showing a work procedure when the rail member is erected in the hoistway of FIG.

FIG. 13 is a perspective view showing a state in which each rail member is centered by a conventional example of a guide rail centering device.

FIG. 14 is a plan view showing a method of centering and installing a rail member in a hoistway of a steel frame structure by a conventional centering device.

FIG. 15 is a side view of FIG. 14;

[Explanation of symbols]

 1a, 1b Piano wire 3 Hoistway 4a, 4b Rail member 31a, 31b Extension body 32a, 32b Lever 33a, 33b Extension member 36 Female screw part 37 x-direction adjusting screw part 38 Gauge member 38a, 38b L steel 39a, 39b Rear surface hit Contact part 40a, 40b Guide surface contact part 42 First position adjusting device 42a Dial part 42b Connecting part 44a, 44b Pulling clamp 45a, 45b Grasping device 46a, 46b Female screw part 47a, 47b Y direction adjusting screw part 48a, 48b Dial part 63a, 64b Lower shaft part 66a, 66b Dial stopper 71a, 71b Base plate 72a, 72b Coupling part 77a, 77b Displacement means 78a, 78b Upper shaft part 80a, 80b Clamp part 331, 332 Extension device 481, 482 Second position Adjusting device

Claims (1)

[Claims] 1. An elevator guide rail centering device for arranging a rail member at a predetermined position in the hoistway with a piano wire hanging in the hoistway formed by a steel frame member as a reference. The base member is detachable from the steel frame member having an extension device provided on the hoistway side, and a displacement means provided on the extension device and displaceable in a plane parallel to the hoistway side face. And a holding device that is supported by the base member via a position adjusting device that can adjust the position, and a holding device that holds the rail member. Output device.