JP2862713B2 - Elevator safe working equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safe working device for working on an elevator car.

[0002]

2. Description of the Related Art A conventional elevator car operation will be described with reference to FIG.

In general, the work on the car 1 is indispensable for the installation and inspection work of the elevator, but the work on the car 1 is unstable on a high ground, The working environment is in a bad state.

When the elevator 1 is installed and inspected, and the elevator 1 is working on the car 1, as the car 1 moves up the hoistway, for example, the receiving beam 2 installed at the uppermost part in the hoistway becomes the worker 3 on the car 1 , The space with the receiving beam 2 is necessarily narrowed. At this time, the receiving beam 2 becomes dangerous to the worker 3 and may cause an accident due to contact or the like.

As described above, many equipment and facilities that can cause an accident are installed in the hoistway of the elevator, especially in the upper part, so that the influence on the worker 3 on the car 1 is great.

[0006]

As described above, at the top of the hoistway of an elevator, there are things that are normally safe even if they are safe and may become dangerous goods. In addition, the risk of accidents during the installation of the elevator and the work on the car during inspection work is increasing.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a safe working device capable of improving the safety of workers when working on a car.

[0008]

The present invention for the above purposes achieving Means for Solving the Problems] attaches a plurality of switch En to interdigital from the installed received beam at the top hoistway of the elevator. The chain hangs in a length that does not directly contact the car, taking into account the jump at the top floor of the car and the extra head.

[0009]

According to the safety working device having the above structure, the worker on the car, which has been raised near the uppermost portion of the elevator shaft,
Or see interdigital Ji En, or noticed in contact with receiving beam it, so that the warning to the accident is provided.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an elevator car safety working device according to the present invention; FIG.

[0011] A plurality of aluminum chains 4 are attached to the lower flange of the receiving beam 2 installed at the uppermost portion of the hoistway of the elevator by pipe fittings 5 and are hung down in an interdigital manner. The length L of the aluminum chain 4 is set to a value that measures the amount of lift and extra head on the top floor of the car 1 and suppresses the car 1 from directly contacting the car 1.

As the car 1 rises and approaches the upper part of the hoistway, the worker on the car approaches the receiving beam 2 and the interdigital aluminum chains 4 naturally enter the field of view of the worker, and the protrusions, i. It will sense the positional relationship. Alternatively, even when the aluminum chain 4 is completely out of sight, the body comes into contact with the aluminum chain 4 and notices it, so that the receiving beam can be avoided.

The same effect can be obtained by applying a plastic chain, a net, a rope, or the like instead of the aluminum chain.

[0014]

According to the present invention, a safe car operation can be carried out by avoiding a contact of a worker on the car, a collision accident, etc. at the time of elevator installation and inspection work.

[Brief description of the drawings]

FIG. 1 is a front view of an elevator shaft according to the present invention.

FIG. 2 is a partial detailed view of FIG.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a front view of a conventional elevator hoistway.

[Explanation of symbols]

 1… Basket 2… Receiving beam 4… Aluminum chain

Claims (1)

(57) [Claims] 1. A safety working device for an elevator, wherein a plurality of chains are hung down from a receiving beam installed at an uppermost portion in a hoistway on which an elevator car moves up and down.