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    • 9. 发明公开
    • SAFETY DEVICE FOR ELEVATOR
    • 电梯安全装置
    • EP2017213A1
    • 2009-01-21
    • EP06746207.7
    • 2006-05-10
    • Mitsubishi Electric Corporation
    • MITSUI, Atsushi
    • B66B5/16B66B7/06
    • B66B11/009
    • An elevator has: a car that can be raised and lowered inside a hoistway; a main rope that suspends the car; and a hoisting machine that includes a drive sheave onto which the main rope is wound and that raises and lowers the car by rotation of the drive sheave. An elevator safety apparatus includes: a hoisting machine braking apparatus for applying a braking force to the main rope by braking rotation of the drive sheave; an auxiliary brake rope that is connected to the car, and that is separate from the main rope; an auxiliary brake pulley that is disposed in an upper portion of the hoistway, and around which the auxiliary brake rope is wound; and an auxiliary braking apparatus for applying a braking force to the auxiliary brake rope. The car receives the respective braking -forces from the main rope and the auxiliary brake rope by respective operation of the hoisting machine braking apparatus and the auxiliary braking apparatus, and is braked by the received braking forces.
    • 电梯有:可在井道内升降的轿厢; 悬挂汽车的主绳索; 以及曳引机,该曳引机包括驱动绳轮,所述主绳索卷绕在所述驱动绳轮上,并且通过所述驱动绳轮的旋转来升降所述轿厢。 一种电梯的安全装置,其特征在于,具有:曳引机制动装置,通过对所述驱动绳轮的旋转进行制动,对所述主绳索施加制动力; 辅助制动绳,其连接到轿厢并且与主绳分离; 辅助制动滑轮,其设置在井道的上部,并且辅助制动绳缠绕在该辅助制动滑轮上; 以及用于向辅助制动绳施加制动力的辅助制动装置。 轿厢通过曳引机制动装置和辅助制动装置各自的操作从主绳索和辅助制动绳索接收各自的制动力,并且通过接收到的制动力制动。