JPS61166484A - Guide rail device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a guide rail device for an elevator that guides an elevating object such as a car or a counterweight, and in particular to an improvement in the joint portion of the guide rail.

[Conventional technology]

5 to 8 are drawings of a conventional elevator guide rail device disclosed in, for example, Japanese Utility Model Application Publication No. 58-55756. In the figures, (1) is the guide rail located above, and (2) is The lower guide rail (8) is a joint plate that vertically connects both guide rails (1) and (2) via bolts (4).

As shown in FIG. 7, which is a front view, on the opposing end surfaces of both guide rails (1) I (2), there is a linear concave #I (15L) located on the lower end surface of the guide rail (1).
) is also provided on the upper end surface of the guide rail (2), and a linear convex protrusion (2a) di is provided, and this convex protrusion (
2a) is fitted into the concave groove (1a), so that both guide rails are positioned without creating a step difference.

The guide rails (1) and I(2) connected for positioning are connected to a rail holder (6) and a fixture (7) consisting of a bolt and a nut.
), mounting brackets (85L), (8b), and concrete bolts (9) are vertically fixed to the hoistway wall (6).

The guide rails (not shown) are provided above and below the elevating body (not shown).
It is a guide body that slides by engaging with 1) and (2), and guides an elevator (not shown) up and down along a plurality of guide rails fixed to the hoistway wall (6).O Conventional The guide rail device for an elevator is constructed as described above, and the concave groove (1a) and the convex protrusion (2a) are individually machined into a straight line, and the concave groove (1a) is formed as shown in FIG.
) is configured to have a width dimension (A) slightly larger than the width dimension (B) of the convex protrusion (2a), so that it is easy to fit the two together when performing assembly work along the hoistway wall (6). It has become.

[Problem that the invention seeks to solve]

In the conventional elevator guide rail device as described above, when the concave groove (1a) and the convex protrusion (2a) are fitted, the fitting margin (4)-(B) becomes a gap, so When force is applied over time, relative movement occurs between the guide rails (1) and (2) within the gap size range of fitting allowance (A) - (B), and the step size shown in Fig. 8 ( C). When the guide body slides on the guide rails (1) and (2) in such a step-down condition, this guide body α
q collides with the end face of the guide rail (1) at the stepped part,
There was a problem in that the impact caused vibrations in the elevating body, resulting in poor riding comfort.

This invention was made to solve this problem, and it prevents the step from falling even if an external force acts on the joint of the guide rail over time, and prevents vibration of the elevator at the joint. An object of the present invention is to obtain a guide rail device for an elevator that can improve riding comfort.

[Means for solving problems]

In the elevator guide rail device according to the present invention, the sliding surfaces of the concave groove and the convex projection when they fit into each other are inclined with respect to the longitudinal direction of the guide rail.

[Effect]

In this invention, since the dimensional difference between the opening end of the concave groove and the tip of the convex projection becomes large, the fitting operation becomes easier. can be formed with.

Therefore, the gap between the two after fitting is the minimum pl.

The movement between the guide rails at the joint can be extremely small◇ [Example] Figure 1 is a front view of the joint showing an example of the present invention. The guide rail located is the guide rail located below, and the guide rail α
A trapezoidal concave groove (11a) with (E) > (D) is formed at the lower end of the V, and a trapezoidal convex protrusion (11a) with a diameter of (B)' is formed at the upper end of the guide rail (121). (12a)
is formed.

There is a relationship between the concave groove (11a) and the convex protrusion (12a) as follows: (D)≧(6) and (E)≧(〆), and the gap size when the two are fitted is The maximum tolerance is set for each item. Concave grooves (1
1a) and the convex projection (12a), the sliding surfaces (11a') and (12a') of the two are inclined with respect to the longitudinal direction of the guide rail (6). The guide rail (2), which is positioned by the concave # (11a) and the convex protrusion (12a), is fixed by a joint plate or bolt (not shown).

In the elevator guide rail device configured as described above, the dimension (R) of the opening end of the concave groove (11a) is formed larger than the dimension (D) of the tip of the convex projection (12a), and is twice as large as both. Since it will be R Shijukuronryu who will do the agreement to the black, the dimensional difference between the dimension (D) and the dimension (uniformity) and the dimensional difference between the dimension (E) and the dimension (d) will be reduced to the minimum machining accuracy. Therefore, as shown in Fig. 2, it becomes possible to form a concave groove (
115L) and the convex protrusion (12a), the gap between them becomes extremely small, and even if an external force is applied over time, the tops of the guide rails (9) and (115L) will be relatively displaced at the joint, causing a step drop. As a result,
It is possible to prevent the sliding surface of the guide body from colliding with the guide rail at the joint, and it is possible to eliminate unnecessary vibrations of the elevating body and obtain a good riding comfort.

In the above embodiment, a trapezoidal concave groove (11a) and a convex protrusion (12a) were employed, but as shown in FIG. 3, a semicircular concave groove (11b) and a semicircular convex Protrusion (12
b), or, as shown in Fig. 4, a triangular concave groove (11c) and a triangular convex protrusion (11c).
2c), or an appropriate shape that allows the sliding surfaces of the concave groove and the convex protrusion to be inclined relative to the longitudinal direction of the guide rail when they are fitted. Can be adopted.

〔Effect of the invention〕

As explained above, in this invention, when the concave groove and the convex protrusion are fitted, the sliding surfaces of both are inclined with respect to the longitudinal direction of the guide rail, so that the opening end of the concave groove and the convex protrusion Since the dimensional difference between the protrusion and the protrusion becomes large, making it easier to fit them together, it is possible to minimize the gap between the concave groove and the convex protrusion when they are fitted in terms of machining accuracy. As a result, even if an external force is applied over time, the guide rail does not undergo relative displacement, and it is possible to prevent a step from forming at the joint, and as a result, the sliding surface of the guide body is aligned with the guide rail. Collision with the end face of the lift body can be avoided, and there is no excessive vibration of the elevating body and a good riding comfort can be obtained.

[Brief explanation of drawings]

FIG. 1 is a front view of a joint showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of the thing shown in FIG.
The figure is a front view of a joint part showing another embodiment of the present invention.
The figure is a side view showing the overall configuration of a conventional elevator guide rail device, FIG. 6 is a cross-sectional view taken along arrow 1-1 in FIG.
FIG. 7 is a front view showing details of the joint portion of the guide rail shown in FIG. 5, and FIG. 8 is a front view showing a state in which a step has fallen. In the figure, (5) is the hoistway wall, (9) and (2) are the guide rails, (11a) is the concave groove, (11a') is the sliding surface,
(t2a) is a convex projection, (12a') is a sliding surface, (11
b) and (11C) are concave grooves, (12b) and (12C)
) is a convex projection. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] A plurality of guide rails along the hoistway wall have concave grooves and convex protrusions on opposing end surfaces, and by fitting the concave grooves and convex protrusions, positioning between the guide rails at the joint is possible. A guide rail device for an elevator that is connected to the concave groove and the convex protrusion, wherein the sliding surfaces of the concave groove and the convex protrusion are inclined with respect to the longitudinal direction of the guide rail. Guide rail device.