JPH08127482A - Joint structure for elevator guide rail - Google Patents

Abstract

PURPOSE: To simplify formation of a joint plane of a guide rail and work for joining by fitting pins into fitting holes of at least two guide rails, fitting two guide rails and engaging the engagement portion of a joint plate with the guide rails during joining the guide rails via the joint plate. CONSTITUTION: Guide rails 1a, 1b are temporarily locked by fitting one half 6a of a pin 6 in a fitting hole 5 of one guide rail 1a and the other half 6b in a fitting hole 5 of the other guide rail 1b. The guide rails 1a, 1b are easily centered because the fitting hole 5 is formed in reference to running planes 2a, 2b, 2c. With the engagement of the engagement protrusions 9, 10 of a joint plate 8 with the base plates 3a, 3b of the guide rails 1a, 1b, the joint plate 8 is abutted thereto, so that an insertion hole 7 in the base plate 3 corresponds to an insertion hole 11 in the joint plate 8. After a bolt is inserted in the insertion holes 7, 11, the guide rails 1a, 1b are joined together. The upper face 8a of the joint plate 8 and the lower face 3c of the base plate 3 are previously finished to be smooth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide rail joint structure in which a guide plate for guiding the vertical movement of an elevator car is joined by a joint plate to a predetermined length.

[0002]

2. Description of the Related Art As shown in FIG. 3, an elevator car 101 is provided with guide rails 102, 1 installed upright in a hoistway.
It is guided by 03 and moves up and down. That is, the basket 101
A roller guide 104 or a sliding guide shoe (hereinafter referred to as a roller guide as a representative) is provided on the roller guide 104.
The car 101 is guided in the vertical direction by traveling on 03.

As shown in FIG. 4, the roller guide 104 has three rollers 105, 106 and 107, and these rollers 105, 106 and 107 are guide rails 103.
To the rollers 105, 106, 10
7 drives.

By the way, the guide rail 103 has a constant length, and a large number of the guide rails 103 having a constant length are joined together to have a predetermined length as a whole. As shown in FIG. 5, the guide rails 103a, 10a
To join 3b, guide rails 103a, 10
The tenon 110 and the tenon groove 111 formed on the respective joint surfaces 108 and 109 of 3b are fitted to each other, and the guide rail 1
Insertion hole 1 formed in 03a and 103b and joint plate 112
The guide rails 103a and 103b are joined by inserting bolts (not shown) into 13, 114 and 115 and tightening them.

[0005]

However, in such a conventional guide rail, a tenon and a tenon groove are formed on the joint surfaces of both ends of one guide rail 103. There is a problem in that high precision is required to form the grooves so that they fit each other properly.

Further, since the tenon 110 of the other guide rail 103a must be fitted in the tenon groove 111 of the one guide rail 103b, the end surfaces of the pair of guide rails 103a and 103b must be carefully aligned. I won't. Furthermore, the combined guide rail 103
The bolts had to be inserted by aligning the insertion holes 115 formed in the joint plate 112 with the insertion holes 113 and 114 formed in a and 103b. Therefore, there is a problem that the work of joining the guide rails is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a guide rail splicing structure which does not require much labor to form a joint surface of the guide rail and which can be easily spliced.

[0008]

In order to achieve such an object, according to the present invention, a guide rail is formed by joining plates with a predetermined length and formed on both end surfaces of the guide rail. A fitting hole formed in the fitting hole of the guide rail, and a joint plate having an engaging portion that engages with the guide rail, and each of the fitting holes of the at least two guide rails A pin is fitted and the two guide rails are aligned with each other, and when the guide rail is joined by the joint plate, the engaging portion of the joint plate is engaged with the guide rail.

[0009]

When one half of the pin is fitted in the fitting hole of one guide rail and the fitting hole of the other guide rail is fitted in the other half of the guide rail, the pair of guide rails are temporarily fixed. The joint plate is applied to the guide rail temporarily fixed by the pin, and the engaging portion of the joint plate is engaged with the guide rail at this time. Then, the guide rail and the joint plate are positioned. Next, the guide rails are joined by bolts or the like.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a guide rail of an elevator according to the present invention.

In FIG. 1, reference numeral 1a is a guide rail of an elevator, and this guide rail 1a has an inverted T-shaped cross section as a whole, and a traveling path portion 2 on which a roller guide provided on a car travels. It is composed of a substrate portion 3 which supports the traveling path portion 2. The guide rail 1a has a fixed length, and a plurality of guide rails 1a are joined together to form a guide rail having a predetermined length.

In order to join the guide rails 1a together, the end surfaces 4 (joint surfaces) of the guide rails 1a must be joined. The joint surface 4 of the guide rail 1 is a surface perpendicular to the longitudinal direction, and a fitting hole 5 having a circular cross section is formed in the joint surface 4 toward the traveling path portion 2. Since the fitting hole 5 formed at this time is cut by a reamer or the like,
Compared to forming a tenon or mortise as in the prior art, higher precision is not required and less labor is required. The fitting hole 5
Are formed on the basis of the traveling surfaces 2a, 2b, 2c of the traveling path portion 2.

A pin 6 can be fitted in the fitting hole 5, and the pin 6 is formed in a tapered shape from the center toward both ends, and the half 6a is fitted into the fitting hole 5. A plurality of connecting holes 7 into which bolts can be inserted are formed in the board portion 3 of the guide rail 1a. The other end of the guide rail 1a has the same structure.

To join the one guide rail 1a and the other guide rail 1b together, a joint plate 8 is used. The joint plate 8 has a rectangular flat plate shape as a whole. Engagement protrusions 9 and 10 are erected on both ends of the joint plate 8 in the width direction, and the engagement protrusions 9 and 10 engage with both side ends 3a and 3b of the base plate portion 3 of the guide rails 1a and 1b. It is like this.

Here, when the engaging projections 9 and 10 of the joint plate 8 are engaged with both side ends 3a and 3b, the insertion hole 11 formed in the joint plate 8 is aligned with the insertion hole 7 of the base plate portion 3. Will be done. The upper surface 8a of the joint plate 8 is the guide rail 1
It is smoothly finished like the lower surface 3c of the substrate portion 3 of a and 1b.

As shown in FIG. 2, one guide rail 1
When one half 6a of the pin 6 is fitted into the fitting hole 5 of a and the fitting hole 5 of the other guide rail 1b is fitted into the other half 6b, the guide rails 1a and 1b are temporarily fixed. At this time, since the fitting hole 5 is formed on the basis of the running surfaces 2a, 2b, 2c, the guide rails 1a, 1b are easily centered by the fitting. Further, since both ends of one guide rail 1a have the same shape unlike the conventional one, the work of joining the guide rails 1a and 1b can be easily performed without paying attention to the joining surface 4.

A joint plate 8 is applied to the base plate portion 3 of the guide rails 1a and 1b temporarily fixed by the pin 6. At this time, the engaging protrusions 9 and 10 of the joint plate 8 are attached to the both end portions 3 of the substrate portion 3.
Engage with a and 3b. Then, the insertion hole 7 of the board portion 3 and the insertion hole 11 of the joint plate 8 are aligned in position.

Next, the bolt 12 is inserted into the insertion holes 7 and 11 to join the guide rails 1a and 1b. In addition,
The upper surface 8a of the joint plate 8 and the lower surface 3c of the substrate portion 3 are smoothly finished.

[0019]

As described above, according to the present invention,
Since only the fitting holes are formed at both ends of the guide rail,
The work of forming the fitting hole does not require higher accuracy and is less laborious than in the conventional case. Also, since both ends of this guide rail have the same shape, the joint surfaces of the guide rail can be aligned without any care, and the engaging portion of the joint plate is engaged with the guide rail for positioning. So
The operation of splicing is simple.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a joint structure for guide rails of an elevator according to the present invention.

FIG. 2 is a front view of a joint structure of guide rails of this elevator.

FIG. 3 is a front view of a conventional elevator car.

FIG. 4 is a cross-sectional view of a guide rail of a conventional elevator.

FIG. 5 is an exploded perspective view of a guide rail of a conventional elevator.

[Explanation of symbols]

 1a, 1b ... Guide rail 5 ... Fitting hole 6 ... Pin 8 ... Joint plate 9, 10 ... Engagement part

Claims (1)

[Claims] 1. A guide rail connected to a joint plate to have a predetermined length, fitting holes formed on both end surfaces of the guide rail, a pin fitted into the fitting hole of the guide rail, and a guide. A joint plate having an engaging portion that engages with the rail, and pins are inserted into the fitting holes of at least two guide rails to align the two guide rails. A joint structure for a guide rail of an elevator, characterized in that an engaging portion of the joint plate is engaged with the guide rail when the joint is connected.