Speed regulator for elevator

Abstract

To provide a governor for an elevator possible to be accurately operated with simple structure and capable of preventing wrong operation of an inspecting part. This governor for an elevator is provided with an operation body 21 pivotally supported on the same shaft as a sheave 11 and having lock parts 24A to 24C, governor weights 15A and 15B provided with claw parts 18A and 18B on a side to be displaced to the outer diameter side by centrifugal force, a car stop switch 20 to be brought in contact with the claw part of the governor weight when elevating speed of a car 3 reaches a first set value, holding means 26, 27, 28, 30 and 31 for holding a governor rope when elevating speed reaches a second set value and the claw part of the governor weight is engaged with the lock part, an engaging means 33 provided in a peripheral position of the governor weight to be held in a waiting position in usual and to be displaced to an operation body side when performing maintenance work, and a lock means 40 provided in the engaging means to hold the engaging means in the waiting position in usual.

Description

technical field [0001] The present invention relates to a governor for elevators, in particular to a governor for elevators as described below. In the governor for elevators, when the lifting speed of the elevator car reaches a first set value, the elevator car The stop switch is turned on, and the driving device of the elevator car is stopped by electric control, and when the lifting speed of the elevator car reaches the second set value, the emergency braking device is activated, and the elevator car is mechanically stopped. The car stops. Background technique [0002] As a prior art, Patent Document 1 discloses a speed governor for an elevator. In this speed governor for an elevator, when the lifting speed of the elevator car reaches the first and second set values, The driving device of the elevator car is stopped, and the emergency braking device is activated to mechanically stop the elevator car. [0003] Patent Document 1 JP-A-2001-106454 [0004] The above-mention...

AI Technical Summary

Problems solved by technology

As a result, it is necessary to ensure that the coupling mechanism coupled with the other claw of the speed governor weight has precise manufacturing and assembly accuracy, otherwise malfunctions are likely to occur, and there is also the problem of difficulty in debugging the coupling mechanism.

And, in the traditional speed governor, although the maintenance inspection rod used for maintenance inspection and the maintenance inspection wire rope used for remote operation of the maintenance inspection rod are provided, there is no guidance on how to prevent the maintenance inspection rod from being damaged. Considering the occurrence of malfunctions, it is possible that the elevator may not operate normally due to malfunctions of the maintenance and inspection levers in occasions other than maintenance inspections.

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