Patent ID: 7931127
Filing Date: 2011-04-26
Classification: B66B

Abstract:
1. An elevator apparatus, comprising: a car; a brake device that brakes a running of the car; and a brake control device that controls the brake device, the brake control device performing braking force reduction control that reduces a braking force of the brake device at a time of emergency braking of the car, wherein the brake control device includes a command generating portion that performs the braking force reduction control at the time of emergency braking of the car, and a safety determining portion that monitors a running state of the car at the time of emergency braking of the car, the brake control device switching between validity and invalidity of the braking force reduction control upon determining that the car can be stopped within a preset allowable stopping distance, the preset allowable stopping distance being a distance between the car and terminal portions of a hoistway within which the car is disposed, and a condition for stopping the car within the preset allowable stopping distance by invalidating braking force reduction control is set in the safety determining portion.