JP7257509B2 - Adjustable rail bracket and elevator system with the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to an adjustable rail bracket and an elevator apparatus having the same.

For example, Japanese Patent Application Laid-Open No. 2002-300003 discloses a conventional technique of guide rail brackets for elevators. In Patent Document 1, an L-shaped wall-side bracket and an L-shaped rail-side bracket are used to fix a guide rail of an elevator to a wall. The wall-side bracket is formed in an L-shape and fixed to the wall by passing anchor bolts through the vertical piece. The rail side bracket is formed in an L shape, and a guide rail is fixed to the vertical piece. The horizontal piece of the wall-side bracket is formed with an elongated hole extending in the left-right direction, and the horizontal piece of the rail-side bracket is formed with an elongated hole extending in the depth direction. When connecting the wall-side bracket and the rail-side bracket, insert the bolts while aligning the respective long holes. The position of the guide rail in the left-right direction and the depth direction is adjusted using elongated holes formed in the horizontal pieces of the wall-side bracket and the rail-side bracket.

In addition, in order to improve the resistance to horizontal load due to seismic motion, either one of the horizontal pieces of the wall-side bracket or the rail-side bracket is formed with an uneven surface portion, and adhesive is applied to the uneven surface portion to attach the wall-side bracket to the wall-side bracket. and the horizontal piece of the rail side bracket.

JP-A-1-127586

In the technique described in Patent Document 1, since the adhesive is applied to the uneven surface portions formed on the horizontal pieces of the wall-side bracket and the rail-side bracket, the work of applying the adhesive is performed in addition to the work of fastening the bolts. Because of this, the workability of installing the guide rail was poor.

In addition, if the adhesive deteriorates over time, the rail side bracket may move due to loosening of the bolt.

SUMMARY OF THE INVENTION An object of the present invention is to provide an adjustable rail bracket which solves the above-mentioned problems, prevents the joint between the wall-side bracket and the rail-side bracket from being displaced, and improves workability in jointing, and an elevator apparatus having the same. It is in.

To achieve the above objects, the present invention provides an adjustable rail bracket comprising a wall bracket fixed to a wall surface and a rail bracket connected to the wall bracket and fixing a guide rail,
The wall-side bracket has a first vertically elongated hole extending in a direction in which the guide rail is separated from the wall surface, and a first horizontally elongated hole extending in a horizontal direction in a direction perpendicular to the first vertically elongated hole. and
The rail-side bracket has a second vertically elongated hole formed to extend in a direction in which the guide rail separates from and contacts the wall surface, and a second horizontally elongated hole formed to extend in a horizontal direction in a direction perpendicular to the second vertically elongated hole. wherein the wall-side bracket and the rail-side bracket include a first bolt inserted into the first vertically elongated hole and the second horizontally elongated hole, and a first bolt inserted into the second vertically elongated hole and the first horizontally elongated hole. The first vertically elongated hole and the first horizontally elongated hole are connected by a second bolt, the first vertically elongated hole and the first horizontally elongated hole are arranged so as not to overlap in the left-right direction, and the second vertically elongated hole and the second horizontally elongated hole do not overlap in the left-right direction. the first longitudinally elongated hole and the second longitudinally elongated hole are displaced from positions on the longitudinal extension of each other; and the second laterally elongated hole and the first laterally elongated hole It is characterized by displacing from the position on the direction extension line .

The present invention also provides a hoist, a main rope wound around the hoist, a car provided on one of the main ropes, and a counterweight provided on the other of the main ropes. with
In an elevator apparatus that ascends and descends along a guide rail installed in a hoistway, the car and the counterweight are connected to a rail-side bracket that fixes the guide rail, and to the rail-side bracket. and a wall-side bracket fixed to the wall surface of the wall-side bracket, wherein the wall-side bracket includes a first elongated hole formed by extending in a direction in which the guide rail is separated from the wall surface, and a direction perpendicular to the first elongated hole a first oblong hole extending in the left-right direction ; and the rail-side bracket includes a second oblong hole formed extending in a direction in which the guide rail separates from and contacts the wall surface, and the second oblong hole. a second oblong hole formed extending in the left-right direction in a direction perpendicular to the wall side bracket and the rail side bracket; , the second vertically elongated hole and the first horizontally elongated hole are connected by a second bolt inserted into the first horizontally elongated hole, the first vertically elongated hole and the first horizontally elongated hole are arranged so as not to overlap in the left-right direction, and the second The vertically elongated hole and the second horizontally elongated hole are arranged so as not to overlap each other in the left-right direction, the first vertically elongated hole and the second vertically elongated hole are arranged so as to be shifted from positions on extension lines in the longitudinal direction of each other, and The second laterally elongated hole and the first laterally elongated hole are arranged so as to be offset from each other on the longitudinal extension line, and the second bolt is arranged closer to the guide rail than the position of the first bolt. characterized by

Advantageous Effects of Invention According to the present invention, it is possible to provide an adjustable rail bracket and an elevator apparatus equipped with the same, in which joints between wall-side brackets and rail-side brackets are less likely to shift and workability in joining is improved. Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

1 is a schematic configuration diagram of an elevator apparatus according to an embodiment of the present invention; FIG. It is a top view of the wall side bracket and rail side bracket which concern on the Example of this invention. FIG. 4 is a top view of an elevator adjustable rail bracket according to an embodiment of the present invention; Figure 4 is a side view of the elevator adjustable rail bracket shown in Figure 3;

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, an example in which the adjustable rail bracket is applied to an elevator will be described.

FIG. 1 is a schematic configuration diagram of an elevator apparatus according to an embodiment of the present invention. In FIG. 1, a car 1 of an elevator system is arranged so as to be able to ascend and descend along a pair of guide rails 2A and 2B fixed to a hoistway. Also, the counterweight 3 is arranged so as to be able to move up and down along a pair of guide rails 4A and 4B fixed to the hoistway.
A main rope 6 is wound around a sheave of a hoisting machine 5 that serves as a drive source of the elevator apparatus. is provided. A car 1 and a counterweight 3 are connected by a main rope 6 wound around a sheave of a hoist 5 arranged in a machine room, and are configured to move up and down in mutually different directions while being balanced. It is

A speed governor 7 for detecting the speed of the car 1 is installed in the machine room, and a tension weight 8 is arranged in the pit of the hoistway. is wound with the speed governor rope 9. A speed governor rope 9 of the speed governor 7 is connected to an emergency stop device 10 that operates when the descending speed of the car 1 exceeds a specified value to stop the car 1 to the guide rails 2A and 2B. It is A safety device 10 is installed at the bottom of the car 1 .

In the elevator apparatus having the general configuration as described above, the guide rails 2A, 2B and the guide rails 4A, 4B are supported and fixed to the inner wall of the hoistway by elevator adjustable rail brackets having a position-adjustable configuration.

Next, the construction of the elevator adjustable rail bracket will be described with reference to FIGS. 2 to 4. FIG.

2 is a top view of a wall side bracket and a rail side bracket according to an embodiment of the present invention, FIG. 3 is a top view of an elevator adjustable rail bracket according to an embodiment of the present invention, and FIG. 4 is the elevator shown in FIG. Fig. 10 is a side view of the adjustable rail bracket; It should be noted that the top view is a state in which the hoistway in which the elevator is installed is viewed from above downward.

Here, the elevator adjustable rail bracket will be described as one that fixes the guide rail 2A, but the same applies to the elevator adjustable rail brackets that fix the other guide rails 2B, 4A, and 4B.

The wall-side bracket 11 has a base portion 11A arranged along the wall surface 12 of the hoistway, and a horizontal portion 11B bent substantially at right angles to the base portion 11A and arranged substantially horizontally. The wall-side bracket 11 is L-shaped when viewed from the side. The wall-side bracket 11 is arranged along the wall surface 12 of the hoistway with the base portion 11A bent downward with respect to the horizontal portion 11B. The base portion 11A is fixed to the wall surface 12 using anchor bolts 13 embedded in the wall surface.

The rail-side bracket 14 has a horizontal portion 14A and a vertical portion 14B bent substantially perpendicularly to the horizontal portion 14A. The rail-side bracket 14 is L-shaped when viewed from the side.

The horizontal portion 14A of the rail-side bracket 14 is placed on the upper surface side of the horizontal portion 11B of the wall-side bracket 11, and the overlapping portions of the horizontal portion 11B and the horizontal portion 14A are two bolts 15A and 15B. are connected by nuts 16A and 16B. Thus, the wall-side bracket 11 and the rail-side bracket 14 are connected. In a state in which the wall-side bracket 11 and the rail-side bracket 14 are connected, the vertical portion 14B of the rail-side bracket 14 is bent upward with respect to the horizontal portion 14A.

Here, the connecting portion using the first bolt 15A will be described. A first vertically elongated hole 17A is formed in the horizontal portion 11B of the wall-side bracket 11, as shown in FIGS. This first longitudinal hole 17A extends from the guide rail 2A toward the wall surface 12 of the hoistway. In other words, the first vertically elongated hole 17A is formed so as to extend in the direction in which the guide rail 2A moves away from the wall surface 12 of the hoistway.

On the other hand, the horizontal portion 14A of the rail-side bracket 14 is formed with a second horizontally elongated hole 18A. This second laterally elongated hole 18A extends in the left-right direction. In other words, the second horizontally elongated hole 18A is formed to extend in a direction orthogonal to the first vertically elongated hole 17A. Thus, the longitudinal directions of the first vertically elongated hole 17A and the second horizontally elongated hole 18A are perpendicular to each other.

A first bolt 15A is inserted from the side of the rail-side bracket 14 into the position where the first vertically elongated hole 17A and the second horizontally elongated hole 18A overlap, and a nut 16A is screwed and tightened to the tip of the insertion side. As a result, the wall-side bracket 11 and the rail-side bracket 14 are coupled.

Next, a connecting portion using the second bolt 15B will be described. A horizontal portion 11B of the wall-side bracket 11 is formed with a first laterally elongated hole 17B as shown in FIGS. The longitudinal direction of the first laterally elongated hole 17B extends in the left-right direction. In other words, the first horizontally elongated hole 17B is formed extending in a direction perpendicular to the first vertically elongated hole 17A.

On the other hand, the horizontal portion 14A of the rail-side bracket 14 is formed with a second vertically elongated hole 18B. This second longitudinal hole 18B extends from the guide rail 2A toward the wall surface 12 of the hoistway. In other words, the second vertically elongated hole 18B is formed so as to extend in the direction in which the guide rail 2A moves away from the wall surface 12 of the hoistway. Thus, the longitudinal directions of the first horizontally elongated hole 17B and the second vertically elongated hole 18B are perpendicular to each other. Further, the above-described second horizontally elongated hole 18A is formed extending in a direction orthogonal to the second vertically elongated hole 18B.

A second bolt 15B is inserted from the side of the rail side bracket 14 into the position where the first horizontally elongated hole 17B and the second vertically elongated hole 18B are overlapped, and a nut 16B is screwed and tightened to the tip of the insertion side. As a result, the wall-side bracket 11 and the rail-side bracket 14 are coupled.

The first vertically elongated hole 17A and the second horizontally elongated hole 18A centered on the first bolt 15A and the first horizontally elongated hole 17B and the second vertically elongated hole 18B centered on the second bolt 15B have substantially the same shape as a whole. However, the first vertically elongated hole 17A and the second vertically elongated hole 18B, which are oriented in the same longitudinal direction, are not located on the extension line of each other in the longitudinal direction, and the second horizontally elongated hole oriented in the same longitudinal direction is not located on the extension line of each other. The hole 18A and the first laterally elongated hole 17B are arranged so as not to be positioned on extension lines in the longitudinal direction of each other. In other words, the first longitudinally elongated hole 17A and the second longitudinally elongated hole 18B are displaced from their respective longitudinal extension lines, and the second laterally elongated hole 18A and the first laterally elongated hole 17B are longitudinally elongated from each other. It is arranged to shift from the position on the line.

A line connecting the wall surface 12 and the guide rail 2A is a straight line L1, and a line diagonally crossing the straight line L1 on the same horizontal plane is a straight line L2. are arranged so as to face each other with a straight line L2 as a boundary.

Although the position of the second bolt 15B is adjacent to the first bolt 15A, it is not positioned at the same distance as the distance from the wall surface 12 to the first bolt 15A, but is arranged closer to the guide rail 2A. Therefore, the second vertically elongated hole 18B is not positioned on the longitudinal extension of the first vertically elongated hole 17A, and the first horizontally elongated hole 17B is positioned on the longitudinal extension of the second horizontally elongated hole 18A. do not have.

Furthermore, the longitudinal directions of the first vertically elongated hole 17A and the first horizontally elongated hole 17B formed in the wall-side bracket 11 do not match, and are perpendicular to each other. Similarly, the longitudinal directions of the second laterally elongated hole 18A and the second longitudinally elongated hole 18B of the rail side bracket 14 do not match, but are perpendicular to each other.

A guide rail 2A is fixed to the vertical portion 14B of the rail-side bracket 14 connected to the wall-side bracket 11 as described above using a plurality of bolt holes formed as shown in FIGS. It is This fixation is performed by arranging a rail clip 19 that straddles the vertical portion 14B from the guide rail 2A side and the end portion on the base side of the guide rail 2A, and inserting a fixing bolt 20 inserted into the rail clip 19 from the guide rail 2A side to the vertical portion 14B. , and a nut 21 is tightened on the insertion side end of the fixing bolt 20 .

As can be seen from this mounting state, the first vertically elongated hole 17A formed in the wall-side bracket 11 and the second vertically elongated hole 18B formed in the rail-side bracket 14 as described above are arranged in the direction of contacting and separating from the guide rail 2A. It is formed extending to For this reason, when the guide rail 2A is fixed to a predetermined position, the amount of variation due to adjustment is reflected in the first elongated hole 17A and the second elongated hole 18B in the wall-side bracket 11 and the rail-side bracket 14. The guide rail 2A can be adjusted in the direction of contacting and separating from the rail 2A, and then the guide rail 2A can be fixed at a predetermined position.

A second horizontally elongated hole 18A formed in the rail side bracket 14 and a first horizontally elongated hole 17B formed in the wall side bracket 11 extend in a direction orthogonal to the first vertically elongated hole 17A and the second vertically elongated hole 18B. For this reason, when the guide rail 2A is fixed to a predetermined position, the amount of variation due to adjustment is reflected in the second laterally elongated hole 18A and the first laterally elongated hole 17B of the wall-side bracket 11 and the rail-side bracket 14. It can be adjusted in a direction orthogonal to the direction of contact and separation with the rail 2A, and then the guide rail 2A can be fixed in place.

In this state, the rail-side bracket 14 may slide in two modes: the fastening bolt slides together with the rail-side bracket 14, and the rail-side bracket 14 alone slides. Here, in the conventional elevator adjustable rail bracket structure in which only one of the vertically elongated hole and the horizontally elongated hole is provided in each of the rail side bracket and the wall side bracket, the upper surface side of the rail side bracket 14 exposed to the outside or the If the coefficient of friction on the lower surface side of the wall-side bracket 11 is lowered due to some reason such as adhesion of lubricant, only one of the slip modes described above occurs intensively. Specifically, when the coefficient of friction is reduced on the upper surface side of the rail side bracket 14 in FIG. is loaded, a mode occurs in which only the rail side bracket 14 slides along the longitudinal hole.

On the other hand, when the coefficient of friction is reduced on the lower surface side of the wall bracket 11 in FIG. 3, lateral force is applied in the structure in which only the second laterally elongated hole 18A in FIG. Then, a mode occurs in which both the bolt and the rail side bracket 14 slide along the laterally elongated hole.

However, according to the construction of the present embodiment described above, the rail-side bracket 14 has a mixture of the second vertically elongated holes 18B and the second horizontally elongated holes 18A having different longitudinal directions of the holes, and the wall-side bracket 11 has the holes with different longitudinal directions. The first longitudinally elongated holes 17A and the first laterally elongated holes 17B having different directions are mixed. Therefore, even if the coefficient of friction is reduced on the upper surface side of the rail side bracket 14 in FIG. Since 15A forcibly hits the periphery of the elongated hole, the frictional force on the lower surface side of the wall-side bracket 11 is exerted.

On the other hand, when the coefficient of friction is reduced on the lower surface side of the wall-side bracket 11 in FIG. Since the first bolt 15A forcibly hits the periphery of the elongated hole 17A in the first longitudinally elongated hole 17A, the frictional force on the rail side surface is exerted. As described above, by using this embodiment, it is possible to adjust the building construction error with a simple configuration, and to prevent the joint portion between the wall-side bracket and the rail-side bracket from being easily displaced.

Further, as described above, in this embodiment, the first vertically elongated hole 17A and the second vertically elongated hole 18B are not positioned on the longitudinal extension line of the hole, and the second horizontally elongated hole 18A and the first horizontally elongated hole 17B are aligned in the longitudinal direction of the hole. Assuming a straight line L1 connecting the wall surface 12 and the guide rail 2A and a diagonal straight line L2 that obliquely intersects the assumed straight line L1 on the same horizontal plane so as not to be positioned on the extension line, The first bolt 15A and the second bolt 15B are arranged as shown. Therefore, it is possible to prevent the rail-side bracket 14 from rotating about the first bolt 15A or the second bolt 15B.

In this embodiment, the first bolt 15A and the second bolt 15B are used as fastening means for the wall-side bracket 11 and the rail-side bracket 14, but any form of fastening means is acceptable. In this embodiment, bolts are referred to as bolts that are inserted into and fastened to the first vertically elongated hole 17A and the second horizontally elongated hole 18A, and the first horizontally elongated hole 17B and the second horizontally elongated hole 18B.

In addition, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the described configurations. It is also possible to replace part of the configuration of one embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

DESCRIPTION OF SYMBOLS 1... Car, 2A, 2B, 4A, 4B... Guide rail, 3... Balance weight, 5... Winding machine, 6... Main rope, 7... Speed governor, 8... Tensioning weight, 9... Speed governor Rope 10 Safety device 11 Wall bracket 11A Base 11B Horizontal part 12 Wall surface 13 Anchor bolt 14 Rail bracket 14A Horizontal part 14B Vertical part 15A First bolt 15B Second bolt 16A, 16B Nut 17A First vertically elongated hole 17B First horizontally elongated hole 18A Second horizontally elongated hole 18B Second vertically elongated hole 19 Rail clip 20 ... fixing bolt, 21 ... nut

Claims (4)

An adjustable rail bracket comprising a wall bracket fixed to a wall surface and a rail bracket connected to the wall bracket and fixing a guide rail,
The wall-side bracket has a first vertically elongated hole extending in a direction in which the guide rail is separated from the wall surface, and a first horizontally elongated hole extending in a horizontal direction in a direction perpendicular to the first vertically elongated hole. and
The rail-side bracket has a second vertically elongated hole formed to extend in a direction in which the guide rail separates from and contacts the wall surface, and a second horizontally elongated hole formed to extend in a horizontal direction in a direction perpendicular to the second vertically elongated hole. and
The wall-side bracket and the rail-side bracket are connected by a first bolt inserted into the first vertically elongated hole and the second horizontally elongated hole and a second bolt inserted into the second vertically elongated hole and the first horizontally elongated hole. concatenated ,
The first vertically elongated hole and the first horizontally elongated hole are arranged at positions that do not overlap in the left-right direction,
The second vertically elongated hole and the second horizontally elongated hole are arranged at positions that do not overlap in the left-right direction,
the first longitudinally elongated hole and the second longitudinally elongated hole are arranged so as to be offset from their respective longitudinal extension lines;
The adjustable rail bracket , wherein the second laterally elongated hole and the first laterally elongated hole are arranged so as to be offset from each other on a longitudinal extension line . In claim 1,
The adjustable rail bracket, wherein the second bolt is arranged closer to the guide rail side than the position of the first bolt. In claim 1,
When a line connecting the wall surface and the guide rail is a straight line L1, and a line diagonally crossing the straight line L1 on the same horizontal plane is a straight line L2,
The adjustable rail bracket, wherein the first bolt and the second bolt are arranged so as to face each other with the straight line L1 interposed therebetween and the straight line L2 as a boundary. A hoist, a main rope wound around the hoist, a car provided on one of the main ropes, and a counterweight provided on the other of the main ropes,
In an elevator apparatus in which the car and the counterweight move up and down along a guide rail installed in a hoistway,
a rail-side bracket that fixes the guide rail; and a wall-side bracket that is connected to the rail-side bracket and fixed to the wall surface of the hoistway,
The wall-side bracket has a first vertically elongated hole extending in a direction in which the guide rail is separated from the wall surface, and a first horizontally elongated hole extending in a horizontal direction in a direction perpendicular to the first vertically elongated hole. and
The rail-side bracket has a second vertically elongated hole formed to extend in a direction in which the guide rail separates from and contacts the wall surface, and a second horizontally elongated hole formed to extend in a horizontal direction in a direction perpendicular to the second vertically elongated hole. and
The wall-side bracket and the rail-side bracket are connected by a first bolt inserted into the first vertically elongated hole and the second horizontally elongated hole and a second bolt inserted into the second vertically elongated hole and the first horizontally elongated hole. concatenated ,
The first vertically elongated hole and the first horizontally elongated hole are arranged at positions that do not overlap in the left-right direction,
The second vertically elongated hole and the second horizontally elongated hole are arranged at positions that do not overlap in the left-right direction,
the first longitudinally elongated hole and the second longitudinally elongated hole are arranged so as to be offset from their respective longitudinal extension lines;
the second laterally elongated hole and the first laterally elongated hole are arranged so as to be offset from their respective longitudinal extension lines;
The elevator apparatus according to claim 1, wherein the second bolt is arranged closer to the guide rail than the position of the first bolt .

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