Patent ID: 7428951
Filing Date: 2008-09-30
Classification: B66B,B66D,F16D

Abstract:
1. A braking device for an elevator, comprising: a pressing device provided on a sheave, which is rotated by raising and lowering a car and a counterweight, configured to apply a pressing force toward the sheave; a braking disc provided with a plurality of engaging portions along a rotational direction of the sheave, configured to be pressed against the sheave by the pressing device; and an engaging device including a movable portion configured to be displaced between an engagement position corresponding to engagement with the engaging portions and a release position corresponding to release from the engaging portions, wherein the braking disc is configured to rotate together with the sheave when the movable portion is at the release position, and the braking disc is stopped to brake rotation of the sheave when the movable portion is at the engagement position.