JPH1087223A - Guide rail for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guide rail for an elevator formed so as to prevent generation of a step difference in a connection part of a plurality of rail materials. SOLUTION: In a guide rail 4 of an elevator joined with one rail material 19 and the other rail material 20, one and the other blade part 4a, 4b formed respectively in one and the other rail materials 19, 20, one and the other hollow part 15a, 15b provided respectively in one and the other blade part 4a, 4b and an insert plate 21 fixedly fitted into this one hollow part 15a and partly protruded therefrom are provided. This insert plate 21 and the other hollow part 15b are fitted, so as to connect one rail material 19 and the other rail material 20.

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 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 machining a single steel plate. The rail members 102 and 103 are joined to each other and then joined 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, the center of the rail members 102 and 103 may be displaced due to the slight bending of the blade portions 102a and 103a during machining or transportation. When the rail members 102 and 103 whose cores of the blade portions 102a and 103a are displaced from each other are joined, as shown in FIG. 8, a step occurs at a joint portion 110 between the rail members 102 and 103. Then, the blade portions 102a, 1
When the rollers 107 and 108 rolling on 03a pass through the step, vibrations and abnormal noises are generated, which causes a problem that passengers on the car feel uncomfortable. .

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]

In order to achieve the above object, according to the present invention, there is provided a guide rail for an elevator having one rail member and another rail member joined to each other. And the other blade member formed on each of the other rail members, and the one and other hollow portions provided on the one and the other blade members, respectively, and are fitted and fixed in the one hollow portion. And an insert plate partially protruding from the insert plate, and the insert plate and the other hollow portion are fitted to each other to join one rail member to the other rail member. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 6 are views showing an embodiment of an elevator guide rail according to the present invention.

In FIG. 4 and FIG. 5, reference numeral 1 denotes a car which is disposed on the hoistway 2 so as to be movable up and down.
The door 1a is provided with a single-opening door 3 so that it can be opened and closed. In addition, when the door 3 is opened at the entrance 1a, a car guide rail 4 and a counter-overlap guide rail 5 are provided upright on the side of the door pocket for storing the door. For this reason, the hoistway 2 is compact in the cross-sectional direction.

The car 1 comprises a car room 6 and a car frame 7 supported by the car room 6. The car frame 7 is provided with a lower frame 7 a provided on the floor of the car room 6 and a door pocket side of the car room 6. And a side frame 7b attached to the side surface of. The side frame 7b is located at a position slightly lower than the upper end 1c (that is, the ceiling) on the side surface of the car 1. Roller guides 8, 9 are provided at the ends of the lower frame 7a and the side frame 7b of the car frame 7, and these roller guides 8, 9 are slidable on the car guide rail 4 as shown in FIG. Is engaged.

A counterweight 10 is provided on the hoistway 2 so as to be balanced with the car 1.
Guide shoes 11 and 12 are provided on both the upper and lower sides of the counterweight, and the guide shoes 11 and 12 are slidably engaged with the counterweight rail 5. One end of a rope 13 is fixed to the upper end of the counterweight 10, and the other end of the rope 13 is fixed to a lower frame 7 a of the car frame 7.

The rope 13 is hung on a drive sheave 14a of a hoisting machine 14 provided above the car guide rail 4 and the counterweight guide rail 5. Hoisting machine 1
4 is located beside the car 1 when the car 1 is located on the top floor.

As shown in FIG. 1, the car guide rails 4 and the counterweight guide rails 5 are formed by bending a single steel plate by machining (eg, extrusion). The upper half of the guide rails 4 and 5 integrally formed in the drawing constitutes the guide rail 4 for the car, and the lower half thereof constitutes the guide rail 5 of the counterweight.

The blade portions 4a, 5a of the car guide rail 4 and the counterweight guide rail 5 have hollow portions 15,
An insert plate 17, 18 made of a steel plate is fitted into each of the hollow portions 15, 16. The rollers 8a and 8b and the shoe 8c of the roller guide 8 are in contact with the blade 4a.

The guide rails 4 and 5 are composed of a plurality of rail members 19 and 20, as shown in FIG. The insert plates 21 and 22 fitted into the hollow portions 15a and 15b of the car guide rail 4 in the rail members 19 and 20 are connected to the rail members 19 and 20.
It is the same length as but is slightly displaced from this and is fixed by welding. For this reason, the insert plate 21 of the rail member 19 protrudes only partially from the one end 19a, and only a hollow portion 15a remains in the blade at the other end (not shown). Similarly, the insert plate 22 of the rail member 20 protrudes only partially (not shown) from one end thereof, and the blade portion of the other end 20a has a hollow portion 15b remaining only partially.

As shown in FIG. 3, a part of the insert plate 21 of the rail member 19 and the blade portion 4b of the rail member 20 are provided.
Is fitted and fixed with bolts. At this time, the blade 4a of the rail member 19 and the rail member 20
Even if the center of the blade portion 4b is slightly misaligned, the misalignment is corrected by fitting a part of the insert plate 21 and the hollow portion 15b of the blade portion 4b, and the rail material 1
There is no step at the joint portion 23 of 9,20. Next, a joint plate 24 is connected to the joint portion 23 by a contact bolt 25.

As described above, since there is no step at the joint 23 between the rail members 19 and 20, the rail 23 is smooth.
Even if the rollers 8a and 8b of the roller guide 8 roll on this, the vibration and abnormal noise generated at this time are reduced.

[0017]

As described above, according to the present invention,
Since the insert plate of one rail material and the hollow portion of the other rail material are fitted to each other, one rail material is joined to the other rail material. Is gone and is smooth.
As a result, even if the rollers of the roller guide roll on the guide rail, the vibration and abnormal noise generated at this time are suppressed to a small extent, and the passengers in the car do not feel uncomfortable.

[Brief description of the drawings]

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

FIG. 2 is a front view of the same.

FIG. 3 is an exploded view of the same.

FIG. 4 is a front view of an elevator.

FIG. 5 is a plan view of an elevator.

FIG. 6 is a sectional view taken along line AA in FIG. 5;

FIG. 7 is a perspective view of a conventional guide rail.

FIG. 8 is a plan view of a conventional guide rail.

[Explanation of symbols]

4 ... Cage guide rail, 5 ... Balance weight, 4a, 4
b: blade portion, 15a, 15b: hollow portion, 19: one rail material, 20: the other rail material, 21, 22, ... insert plate.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuhiko Motomura 2700-1 Mizuguchi, Koike-shi, Shibayama-cho, Sanmu-gun, Chiba Pref. Japan Otis Elevator Co., Ltd.

Claims (1)

[Claims] 1. A guide rail for an elevator in which one rail member and the other rail member are joined, wherein one and the other blade portions formed on the one and the other rail members, respectively, And one and the other hollow portions respectively provided on the other blade portion, and an insert plate fitted and fixed in the one hollow portion and partially protruding therefrom, wherein the insert plate and the other With the hollow part of
A guide rail for an elevator, wherein one rail member is joined to the other rail member.