JPH06239561A - Rail bracket centering device for elevator - Google Patents

Abstract

PURPOSE:To provide a rail bracket centering device for an elevator to perform a simple and reliable work to center rail brackets, making a pair, without using a long member having some fear for bending and weight and even when the interior of an elevator shaft is wide. CONSTITUTION:A rail bracket centering device for an elevator comprises a light flux projecting means 4 removably mounted on the standing-up right surface 2a of one rail bracket 2 of rail brackets making a pair and projecting a light flux 7 in a direction extending vertically to the standing-upright surface 2a and a light flux incident position display means 5 removably mounted on the standing-upright surface 3a of the other bracket 3 and formed such that opposing display surfaces 12b for displaying the incident position of a light flux 7 and a display plate 13 formed of an opaque material are arranged in two spots paralleling the standing-upright surface 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator rail bracket centering device used for positioning a pair of rail brackets at the same height in a hoistway.

[0002]

2. Description of the Related Art As a centering device of this type, as described in Japanese Patent Laid-Open No. 58-36869,
It is known that both ends of a substantially L-shaped long member having a scale stamped thereon are brought into close contact with a pair of rail brackets so that these rail brackets can be held in a positioned state.

[0003]

However, in the above-described conventional centering device, a substantially L-shaped elongated member is provided between a pair of rail brackets that are temporarily fixed to each other at the same height position in the hoistway while facing each other. Since it is necessary to perform centering work by straddling members, a long and heavy long member is workable especially in a large elevator where the hoistway is wide and the distance between both brackets exceeds 4 to 5 meters. There was a problem that it adversely affected the reliability. That is, if the distance between the pair of rail brackets is wide, a long member for centering must also be used, which makes it difficult to handle in a hoistway with poor scaffolding and easily bends due to its own weight. Further, if the rigidity of the long member is increased in order to reduce the bending, the weight increases and the handling becomes more difficult, so that the workability is significantly deteriorated.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to easily and surely perform the centering work of the paired rail brackets even if the inside of the hoistway is wide. It is to provide a bracket centering device.

[0005]

SUMMARY OF THE INVENTION The above object of the present invention is a centering device used for positioning a pair of rail brackets for supporting a pair of guide rails at opposite positions in a hoistway. , A luminous flux projection means that is detachably mounted on the standing surface of one of the rail brackets, projects a luminous flux in a direction perpendicular to the standing surface, and is detachably mounted on the standing surface of the other rail bracket,
A light flux incident position display means for disposing a first display portion facing each other for displaying the incident position of the light flux and a second display portion made of a semitransparent material at two positions parallel to the upright surface. Achieved by

[0006]

In the centering device having the above-mentioned components, the light beam projecting means mounted on one of the rail brackets and the second light beam incident position display means mounted on the other rail bracket.
Projecting a light beam toward the display unit and adjusting a deviation between an incident position of the light beam on the second display unit and an incident position of the light beam transmitted through the semitransparent second display unit on the first display unit. Thereby, both brackets can be accurately centered, and a small and lightweight luminous flux projection means and luminous flux incident position display means can be adopted, which facilitates handling in the hoistway.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1 is a perspective view of a rail bracket centering device as an embodiment, FIG. 2 is a side view showing how the rail bracket is centered using the centering device, and FIG. It is the top view seen from.

The centering device shown in these figures is used when positioning a pair of rail brackets 2 and 3 for supporting a pair of guide rails (not shown) at positions facing each other in the hoistway 1. The light beam projection means 4 is detachably mounted on one rail bracket 2 and the light flux incident position display means 5 is detachably mounted on the other rail bracket 3.

The light beam projection means 4 is a projection side mounting member 6 capable of closely fixing the L-shaped end surface 6a to the standing surface 2a of the temporarily fixed rail bracket 2 by a magnetic attraction force, and is held by this mounting member 6. It is composed of a light beam projector 8 for projecting a laser light beam 7 having a constant diameter (for example, 1 to 5 mm) in a direction perpendicular to the L-shaped end face 6a, and two levels are provided on the upper surface of the projection side attachment member 6. A container 9 is attached and markings 10 and 11 for positioning are engraved. The mounting member 6 has a built-in magnet (not shown) projecting from the L-shaped end surface 6a, and the magnetic force of the magnet mounts the rail bracket 2.

Further, the light beam incident position display means 5 has a display side mounting member 12 capable of closely fixing the L-shaped end surface 12a to the standing surface 3a of the temporarily fixed rail bracket 3 by a magnetic attraction force, and this mounting member 12. A display plate 13 made of a translucent material and held in parallel with the L-shaped end face 12a. The scale 13a engraved on the display plate 13 and the display-side mounting member 12 The scale 12c engraved along the upper edge of the display surface 12b facing in parallel with the display plate 13 is set so that the coordinate positions of straight lines crossing the display plate 13 and the display surface 12b at the right angle show the same value. is there. In addition, the electronic level 14 is attached at two places on the upper surface of the display side mounting member 12, and
Positioning marks 15 and 16 are engraved, and
The mounting member 12 has a built-in magnet (not shown) that projects from the L-shaped end surface 12a, and is attached to the rail bracket 3 by its magnetic force.

Next, the centering work of the rail brackets 2 and 3 using the above-mentioned centering device will be described.
In addition, prior to such centering work,
It is assumed that the rail brackets 2 and 3 are temporarily fixed to the fasteners 17 and 18 which are positioned and fixed to the wall surface, and piano wires 19 and 20 extending along the vertical direction are stretched at predetermined positions.

First, the mark 10 of the projection side mounting member 6 is aligned with the mark (not shown) of the rail bracket 2, and the mounting member 6 is raised by the magnetic force of the built-in magnet.
The L-shaped end surface 6a is made to stick to the a
After closely fixing to a, while watching the level 9, the mounting member 6
While maintaining the horizontal posture, the position of the rail bracket 2 is adjusted so that the mark 11 matches the piano wire 19, and the bracket 2 is finally fixed to the fastener 17 in the matched state.
Then, the mark 15 of the display side mounting member 12 is aligned with the mark (not shown) of the rail bracket 3, and the mounting member 1
2 is attracted to the upright surface 3a of the bracket 3 by the magnetic force of the built-in magnet so that the L-shaped end face 12a is closely fixed to the upright surface 3a, and then the mounting member 12 is observed while looking at the level 14.
The position of the rail bracket 3 is roughly adjusted so that the mark 16 matches the piano wire 20 while maintaining the horizontal posture of the laser beam, and thereafter the laser beam projected from the light beam projector 8 held by the projection side mounting member 6 is projected. The position of the rail bracket 3 is finally adjusted so that the incident position of the light beam 7 on the display plate 13 and the incident position of the light beam 7 transmitted through the semitransparent display plate 13 on the display surface 12b have the same value, After the adjustment is completed, the bracket 3 is permanently fixed to the fastener 18.

In this way, the standing surfaces 2a and 3a of the rail brackets 2 and 3 which are permanently fixed are both set vertically and face each other without any deviation in front, rear, left and right, and are centered with high precision. Therefore, the rail bracket 2 without the light beam projection means 4 and the light beam incident position display means 5
If a guide rail (not shown) is attached to each of the guide rails 3, the cores of the pair of guide rails will not be displaced.

As described above, since the laser beam 7 is used for the centering adjustment of the rail brackets 2 and 3 in the above embodiment, a long member which may be bent or heavy is hung between the brackets 2 and 3. It is not necessary to hand over the brackets, so that high centering accuracy can be secured even when the distance between the brackets 2 and 3 is wide. Moreover, the luminous flux projection means 4 and the luminous flux incident position display means 5
As a small and lightweight member such as the mounting member 6 with the light beam projector 8 and the mounting member 12 with the display plate 13, it is easy to handle in the hoistway 1.
Good workability can be expected even when the distance between the brackets 2 and 3 is wide.

[0015]

As described above, the rail bracket centering device according to the present invention can be constituted by a small and lightweight light beam projection means and light beam incident position display means, and makes a pair by utilizing a light beam such as laser light. Since the rail bracket can be centered and adjusted, high centering accuracy can be secured without hanging a long member that may be warped or heavy between the brackets, and both brackets can be centered even if the hoistway is wide. There is an excellent effect that can be performed easily and surely.

[Brief description of drawings]

FIG. 1 is a perspective view of a rail bracket centering device as an example.

FIG. 2 is a side view showing how the rail bracket is centered using the centering device.

FIG. 3 is a plan view of FIG. 2 seen from above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 hoistway 2,3 rail brackets 2a, 3a upright surface 4 light flux projection means 5 light flux incident position display means 6 projection side mounting member 7 laser light flux 8 light flux projector 9,14 level 12 display side mounting member 12b display surface (first 1 display part) 13 display plate (second display part) 17,18 fasteners 19,20 piano wire

Claims (1)

[Claims] 1. A rail bracket centering device for an elevator used for positioning a pair of rail brackets for supporting a pair of guide rails at opposite positions in a hoistway, wherein one of the rail brackets is A light beam projection means that is detachably mounted on the upright surface and projects a light beam in a direction perpendicular to the upright surface, and a detachable mount on the upright surface of the other rail bracket, which is parallel to the upright surface. An elevator rail characterized in that it is provided with a light beam incident position display means for disposing a first display part facing each other for displaying an incident position of the light beam and a second display part made of a semitransparent material at a position. Bracket centering device.