JP2001130852A - Guide rail for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guide rail for an elevator preventing differences in a level in joining parts of a plurality of rail materials. SOLUTION: A first projecting part 10b of a first inside rail material 10 coming out from a first outside rail material 9 is overlapped on the inside of a second projecting part 11b of a second outside rail material 11 coming out from a second inside rail material 12. The first projecting part 10b and the second projecting part 11b are connected by a connecting tool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide rail for an elevator in which a plurality of guide rail members are joined, and the joint portion is made smooth.

[0002]

2. Description of the Related Art As a conventional guide rail of an elevator, for example, there is one as shown in FIG. In the figure, reference numeral 101 denotes a guide rail provided on both sides of an elevator car, and the guide rail 101 is formed by joining a plurality of rail members 102 and 103. The rail members 102 and 103 are formed by molding a single steel plate. The rail members 102 and 103 are connected to each other by bolts 105 via a joint plate 104.

[0003] The blade portions 102a,
103a is provided with a roller guide 10 attached to a car.
6 are in contact with the rollers 107 and 108 and the shoe 109. The car is moved up and down along the guide rail 101. At this time, the rollers 10 of the roller guide 106
7, 108 roll on the blades 102a, 103a.

[0004]

However, such rail members 102 and 103 can be used to form the blades 10 during molding or transportation.
The cores 2a and 103a may be slightly bent or misaligned. When the rail members 102 and 103 whose centers of the blade portions 102a and 103a are shifted are joined, the rail member 10
A step occurs at the joint portion 110 between the 2 and 103. Then, when the rollers 107 and 108 rolling on the blade portions 102a and 103a pass through the step, vibrations, abnormal noises, and the like are generated, and the passengers in the car feel uncomfortable. There was a problem.

An object of the present invention is to provide a guide rail for an elevator in which a step is not generated at a joint portion between a plurality of rail members.

[0006]

According to the present invention, an inner rail member having a substantially U-shaped cross section is provided on an outer rail member having a substantially U-shaped cross section. A guide rail of an elevator in which three rollers of a roller guide roll on three inner surfaces of the inner rail material, the first protrusion of the first inner rail material protruding from the first outer rail material. A portion of the first outer rail material extending from the second inner rail material inside the second projecting portion of the second outer rail material;
The protruding portion and the second protruding portion are configured to be connected by a connecting tool.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 4 are views showing an embodiment of an elevator guide rail according to the present invention.

In FIG. 3, reference numeral 1 denotes a car arranged in a hoistway so as to be movable up and down. The car 1 comprises a car room 2 and a car frame 3 supporting the car room 2. Roller guides 4 and 5 are provided at the upper and lower ends of the car frame 3, and the roller guides 4 and 5 run on guide rails 6 erected on the side of the car 1.

As shown in FIG. 4, the guide rail 6 has a substantially U-shaped cross section, and the inside of the guide rail 6 faces the car side and has three inner surfaces inside. . The rollers 5a, 5b, 5c facing the three directions of the roller guide 5 are in contact with the three inner surfaces of the guide rail 1, and roll on them.

As shown in FIG. 1, a guide rail 6 is formed by joining a plurality of rail members 7 and 8, and the rail member 7 has a first outer rail member 9 having a substantially U-shaped cross section, and a first outer rail member 9 provided thereon. It comprises a first inner rail member 10 which is superimposed and also has a substantially U-shaped cross section. Both side ends of the first inner rail member 10 are bent, and both side ends of the first outer rail member 9 are inserted into the bent portions. The first outer rail member 9 and the first inner rail member 10 have connection holes 9a, 10
a is formed and connected and fixed by bolts and nuts passing through the connecting holes 9a and 10a. Further, the first inner rail member 10 is provided at the end 9 b of the first outer rail member 9.
1 protrudes downward in FIG. Similarly to the above, the rail member 8 has the configuration of the second outer rail member 11 and the second inner rail member 12 (having connection holes 11a and 12a).
The second outer rail member 11 protrudes upward in FIG. 1 from the end 12 b of the second inner rail member 12.

The first projecting portion 10 of the first inner rail member 10
b and the second protruding portion 11b of the second outer rail member 11 are overlapped and connected and fixed by bolts and nuts. As shown in FIG. 2, the end 1 of the first inner rail material 10
0c and the end 12b of the second inner rail member 12 abut against each other, and the ends 10c and 12b are supported by the second outer rail member 11 from the back side and pressed down by bolts and nuts. For this reason, the end 10 c of the first inner rail member 10 and the end 12 c of the second inner rail member 12
It does not differ from b and is held on the same plane.

Therefore, the rollers 5a, 5b, 5c facing the three directions of the roller guide 5 are connected to the first and second inner rail members 1 respectively.
When the vehicle travels on the three inner surfaces 0, 12, the ends 10c, 12
Since there is no step between "b", the vehicle runs smoothly.

[0013]

As described above, according to the present invention,
The first of the first inner rail material protruding from the first outer rail material
Since the protruding portion is overlapped with the inside of the second protruding portion of the second outer rail material protruding from the second inner rail material, and the first protruding portion and the second protruding portion are connected by the connecting tool, When the rollers of the roller guide run on the three inner surfaces of the first and second inner rail members, they can run smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of an elevator guide rail according to the present invention.

FIG. 2 is an enlarged sectional view of a main part.

FIG. 3 is a side view of an elevator car.

FIG. 4 is a plan view of a roller guide.

[Explanation of symbols]

6 guide rail, 9 first outer rail material, 10 first
Inner rail material, 10b: first protruding portion, 11: second outer rail material, 11a: second protruding portion, 12: second inner rail material

Continued on the front page (72) Inventor Takashi Toi 2-4-1 Nishi Shinjuku, Shinjuku-ku, Tokyo Shinjuku NS Building Japan Otis Elevator Co., Ltd. F-term (reference) 3F305 BD03 BD06

Claims (1)

[Claims] 1. An inner rail member having a substantially U-shaped cross section is superimposed on an outer rail member having a substantially U-shaped cross section, and three rollers of a roller guide are formed on three inner surfaces of the inner rail member. A rolling guide rail of an elevator, wherein a first protruding portion of a first inner rail protruding from a first outer rail is a second protruding portion of a second outer rail protruding from a second inner rail.
The first projecting portion and the second projecting portion overlap with each other inside the projecting portion.
A guide rail for an elevator, wherein the protruding portion is connected with a connecting tool.