JPH0198585A - Counterweight for elevator - Google Patents

Abstract

PURPOSE: To prevent the buckling phenomenon in the connecting part between weights by engaging a guide rail-side protruding part possessed by a bracket for connecting the side of the connecting part between weights with the guide rail. CONSTITUTION: Two weights 1 for balancing an elevator are integrally connected by a belt 5 extending through them, a pair of guide rails 9 having a prescribed length are arranged on both sides of the weights 1, and a suspending plate 4 and guide devices 6 mounted on the upper end of the upper weight 1 and the lower end of the lower weight 1 are engaged with the guide rail 9. A bracket 7 is mounted on each guide rail 9-side of the connecting part between both the weights 1. The bracket 7 has a protruding part 7a toward the guide rail 9 side near the connecting surface between both the weights 1, and the protruding part 7a is engaged. with the guide rail 9. According to such a structure, the abnormal shaking of both the weight 1 parts can be regulated, and the buckling phenomenon in the connecting part between weights can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a counterweight for an elevator, and more particularly to a counterweight for an elevator that is formed by connecting a plurality of weights without using a framework.

[Conventional technology]

The conventional counterweight for this type of elevator was developed in 1972.
As shown in Publication No. 67150, the side parts of the inter-weight fitting parts are connected together with metal fittings, and the upper and lower ends of this integrated counterweight are provided with retainers that engage with the guide rail. A device was installed to guide the operation.

[Problem that the invention seeks to solve]

Conventional elevator counterweights had the above-described configuration, so when they were swung back and forth and left and right due to an earthquake, etc., there was a risk that the interlocking parts between the weights would buckle. In other words, when vibration is applied to the counterweight, the weight above the joint and the weight below the joint behave differently, which causes an undesired force to be applied to the metal fitting that connects the two weights, resulting in deformation. was there.

The present invention is intended to solve the above-mentioned problems, and its object is to provide a counterweight for an elevator that prevents the phenomenon of bending at the inter-weight fitting portion.

[Means for solving problems]

In order to achieve the above object, the present invention provides a metal fitting for connecting the weights to the fitting part, and for this installation, a protrusion that protrudes toward the guide rail side is provided on the metal fitting, and this protrusion is connected to the guide rail. It is characterized by a combination of

[Effect]

Since the elevator counterbalance weight of the present invention has the above-described configuration, the fitting provided at the inter-weight fitting portion is engaged with the guide rail, and abnormal deflection of the joint portion can be prevented through the fitting. This can be controlled by a guide rail, thereby preventing the joint from buckling.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view of an elevator weight, in which two weights 1 are integrally connected by a hanging bolt 5 passing between them. An adjustment weight 2 is provided above the upper weight 1, and the suspension bolt 5 also passes through this adjustment weight 2, and its upper end is coupled to the suspension plate 4. Therefore, a distance necessary for attaching the adjustment weight 2 is ensured between the upper weight 1 and the hanging plate 4. A simple rod 8 is connected to the hanging plate 4, and the simple rod 8 is connected to a main rope (not shown).

A pair of guide rails 9 of a predetermined length are arranged on both sides of the weight 1, and a hanging plate 4. Guide device 6 attached to the upper end of the upper weight 1 and the lower end of the lower weight 1, respectively.
is engaged with the guide rail 9. Due to this attachment, the weight 1 is guided by the guide rail 9 while being prevented from swinging.

Further, a fitting 7 is provided at the joint between the two weights 1, and the fitting 7 protrudes toward the guide rail 9 and engages with the guide rail 9.

This attachment will be explained in detail with reference to FIGS. 2 and 3 regarding the metal fitting 7.

Fig. 2 is a plan view of the weight l, in which fittings 7 are attached to the guide rail 9 side of the connecting portion of both weights, and the fittings 7 have recesses that engage with the guide rails 9. are doing. Therefore, when the weight 1 tries to swing up and down in the figure, it is regulated by the engaged guide rail 9. Therefore, the buckling phenomenon seen in conventional configurations does not occur. Two through holes IC are formed in the weight 1,
A hanging bolt 5 is inserted into this through hole lc.

Also, as can be seen from Figure 3, there are 2
Two recesses 1b are formed, and a protrusion 1a that fits into the recess 1b is formed on the lower end surface of the weight 1 corresponding to the recess 1b. Therefore, when the weights 1 having the same configuration are stacked, the convex portion 1a of the upper weight fits into the recess 1b of the lower weight, and the two are fixed in position.

For installation, the metal fitting 7 has a protrusion 7a protruding toward the guide rail 9 near the joining surface of both weights, as shown in FIG. It is engaged like this. For attachment, the shape of the metal fitting 7 can be determined without being limited to the illustrated example, but in any case, the structure is such that the portion protruding toward the guide rail 9 is engaged with the guide rail 9. Also, weight 1 has two on the top and one on the bottom.
Hanging holes 1d are formed almost horizontally, and these hanging holes 1d are used as robe hooks when carrying in weights.When lifting the weight vertically, the upper two are used, and when lifting the weight horizontally, the upper and lower holes are used. Use one each.

As can be seen from the above explanation, when connecting two weights, the protrusion formed on the lower end surface of the upper weight is fitted into the recess formed on the upper end surface of the lower weight to adjust the position. For installation, metal fittings 7 and hanging bolts 5 are provided.
The concave portions and convex portions may be reversed. However, considering that the adjustment weight 2 is mounted as shown in FIG. 1, it is desirable to form a recess in the upper end surface as in the illustrated embodiment. In addition, since the fitting 7 is engaged with the guide rail 9 during installation to restrict swinging of the connecting portion of the weight 1, the fitting portion between the convex portion 1a and the concave portion 1b will not be damaged.

〔Effect of the invention〕

As explained above, in the present invention, the fitting provided at the connection part of the weight is made to protrude toward the guide rail side, and this protrusion part is engaged with the guide rail. The phenomenon can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a front view of a counterweight for an elevator according to an embodiment of the present invention, FIG. 2 is a plan view of the weight in FIG. 1, and FIG.
The figure is an enlarged view of the main part of FIG. t-1------weight, 1 a---------convex part,
1b---concavity, 2---adjustment weight,
4-...--Hanging temporary, 5--Hanging bolt, 6--
-・-・・Guide device, 7-・-Mounting with metal fittings, 7a-
...--Protrusion, 9.---1-.Guide rail. Figure 11 Figure 2 Figure 3

Claims (1)

[Claims] 1. In an elevator counterbalance weight configured to be suspended by a hanging bolt passing through a plurality of weights and guided along the guide rail by a guide device engaged with a guide rail, a connection between the weights. A counterbalance for an elevator, characterized in that the sides of the parts are connected by a mounting bracket, the mounting bracket has a protrusion protruding toward the guide rail, and the protrusion engages with the guide rail. Weight. 2. The elevator according to claim 1, characterized in that both of the weights forming the joint portion have a convex portion and a concave portion formed at opposing portions of the weights fitted into each other. Counterweight. 3. The elevator according to claim 2, wherein the convex portion is formed on a portion facing the weight located above, and the recessed portion is formed on a portion facing the weight located below. Counterweight for use. 4. In the item described in claim 1 above, each of the weights has two substantially horizontal through holes in its upper part and one substantially horizontal through hole in its lower part. A counterweight for elevators characterized by the following.