| 摘要 |
The invention relates to a brake arrangement, by means of which both rotational and linear movement, such as incorrect movement of lifting platforms, and in particular falling, is braked. The brake device comprises a coupling 25, 26 fitted to a shaft 4, which coupling transmits rotational movement to a brake device 20, 21 and which has a stop device 27, which is activated at an adjustable set value of a centrifugal force generated by the rotational movement, and which locks the coupling in order to transmit rotational movement between the shaft and the brake device. When it is locked, the stop device 27 in the coupling is designed to transmit rotational movement also in the opposite direction to the locking direction, in order to release the locking by rotation of the shaft 4 in the opposite direction, and the coupling is provided with a ratchet element 50, which prevents the stop device 27 from immediately resuming its non-locking position when the brake arrangement is opened by rotation of the shaft 4 in the opposite direction. <IMAGE>
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