JPS6351951B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator derailment detection device, and in particular detects derailment by grasping an elevator counterweight or a wire rope for detecting derailment stretched in an elevator hoistway when a car derails. The present invention relates to a derailing detection device for an elevator.

Conventionally, in the above-mentioned elevator derailment detection device, a wire rope for detecting derailment was stretched between the machine room at the end of the elevator hoistway and the pit at the lower end. There was a problem with the installation process.

In other words, in order to connect the upper end of the detection wire rope to the machine room, it is necessary to provide a through hole in the floor of the machine room, and the detection wire rope must be parallel to the guide rail in the hoistway. It is necessary to tension the wire rope accurately, but since the guide rail, the machine room, and the pit are installed in different dimensional positions, centering is difficult and requires a lot of effort. After removal, it is necessary to finish and backfill the through holes in the machine room floor, which is not economical as it takes a lot of time, is inefficient, and also costs a lot of money.

The present invention was made in view of the above circumstances, and it is an object of the present invention to provide a device that satisfactorily solves all of the conventional drawbacks.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. First, FIG. 1 is a schematic diagram of the entire elevator equipped with the rail derailment detection device of the present invention, in which a hoist 1 and a deflection sheave 2 are provided in the upper end machine room, and the hoist 1 and deflection sheave 2 are A wire rope 3 is wound around the main wire rope 3, and an elevator car 4 is attached to one end of the main wire rope 3, and a counterweight 5 is attached to the other end of the main wire rope 3, and these are arranged in a hoistway 6 in a manner that they can be raised and lowered relative to each other. The car 4 and the counterweight 5 are guided by guide rails 7, 7' (the car 4 side is not shown), respectively.

Here, the guide rails 7, 7' are connected to the hoistway 6.
It is supported and mounted by rail brackets 8 protruding from the inner wall, and rope support arms 9, 9' are protruded from the upper and lower ends of the guide rail 7, and the ropes are supported by the upper and lower rope support arms 9, 9'. A wire rope 12 for detecting rail departure is stretched parallel to the guide rail 7 with an appropriate tension via springs 10, 10' and spring receivers 11, 11'.

Further describing the above-mentioned configuration with reference to detailed drawings in FIGS. 2 and 3, support frames 14, 14' are attached via rail clips 13 to the upper and lower ends of the guide rail 7, which is attached and fixed by rail brackets 8. , a screw 1 is attached to one side end of the support frame 14, 14'.
The support arms 9, 9' are fixed by the support arms 9, 9', and the support springs 10, 1 are attached to the support arms 9, 9'.
0' and spring receivers 11, 11', a wire rope 12 for detecting rail departure is stretched. In addition, 16 in the figure is a gripping mechanism provided on the counterweight 5 to grasp the wire rope 12 for detecting the off-rail when the counterweight 5 comes off the rail.
As a result, the detection wire rope 12 moves against either one of the upper and lower support springs 10, 10' to detect rail deviation.

4 and 5 show another modification of the present invention, in which support frames 14a, 14a are fixed to the upper ends of both the left and right guide rails 7, 7', and the left and right support frames 14a, 14a are The support arms 9a are constructed and fixed to each other, and the support arms 9a support the upper end of the wire rope 12 for detecting rail deviation via the support spring 10a and the spring receiver 11a.The lower end side is also similar although not shown. has been done. In other words, when the elevator counterweight 5 or the car 4 comes off the rails, the invention grasps and displaces the off-rail detection wire rope 12, which is stretched vertically in the elevator hoistway 6, with the gripping mechanism 16. In an elevator derailment detection device that detects derailment using The support frame 14 is connected via the rail clip 13, respectively.
are attached so as to protrude laterally, and support arms 9 are provided to protrude laterally by fastening their base ends to these upper and lower support frames 14. This is a derailing detection device for an elevator, characterized in that it is constructed by stretching the wire rope 12 for detecting derailing.

By tensioning the wire rope 12 for rail deviation detection on the support arms fixed to the upper and lower ends of the guide rail via the support frame as described above, the wire rope 12 can be easily and reliably tensioned and centered. The rope can be accurately parallel to the guide rail, and the rope tensioning work is very simple and can be omitted. This has the effect of making work unnecessary.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention, FIG. 2 is an enlarged detailed view of FIG. 1, and FIG.
4 and 5 are a plan view taken along the line ``--'', and FIGS. 4 and 5 are a plan view and a front view of the upper end portion showing a modification of the present invention. 1... Hoisting machine, 2... Deflecting sheave, 3... Main wire rope, 4... Car, 5... Counterweight,
6... Hoistway, 7, 7'... Guide rail, 8... Rail bracket, 9, 9', 9a... Support arm, 10,
10', 10a...Support spring, 11, 11', 11a
...Spring holder, 12...Wire rope for detecting rail derailment, 13...Rail clip, 14, 14', 14
a...Support frame, 15, 15'...Screw, 16...Gripping mechanism.

Claims (1)

[Claims] 1. An elevator system in which when an elevator counterweight or a car comes off the rail, a wire rope for detecting off-rail that is stretched vertically in the elevator hoistway is grasped and displaced by a grasping mechanism to detect the off-rail. In the rail derailment detection device, support frames are protruded laterally through rail clips from the upper and lower ends of the counterweight and car guide rails provided in the hoistway via rail brackets, respectively. At the same time, the base ends are fastened to the upper and lower support frames to provide support arms that protrude in the lateral direction, and the wire rope for detecting rail deviation is stretched across the upper and lower support arms via support springs and spring holders. An elevator derailment detection device characterized by: