Patent ID: 9546074
Date: 2017-01-17
CPC Classifications: B66B

Claim:
1. An elevator apparatus comprising: a hoisting machine comprising a driving sheave; a suspending means that is wound around the driving sheave; a car that is suspended by the suspending means so as to be raised and lowered by the hoisting machine; a braking apparatus that applies a braking force to the car by means of the suspending means; an excessive speed monitoring portion in which is set an excessive speed detection level that changes in response to car position, and that makes the braking apparatus perform a braking operation when car speed reaches the excessive speed detection level; a safety device that is disposed on the car; and an anomalous acceleration detecting mechanism that activates the safety device if acceleration that exceeds a preset set value arises in the car, wherein the anomalous acceleration detecting mechanism comprises a mass that operates in connection with movement of the car, and activates the safety device using an inertial force that is generated by the mass if the acceleration that exceeds the set value arises in the car.