| 摘要 |
A braking device of a lift installation is actuated, and also reset, by means of an electric actuator (20). The electromechanical actuator (20) contains an energy store (40), a retaining device (30), a resetting device (60) and at least one connecting element (26, 25) for connecting the actuator (20) to the brake (13, 13'). The resetting device (60) retains the connecting element (26, 25), via the retaining device (30) and counter to the action of the energy store (40), in a first operating position, corresponding to a standby position of the brake (13, 13'), or guides the actuator (20) back into this position. The energy store (40) acts as required, upon release of the retaining device (30), on the connecting element (26, 25) in order to actuate the brake (13, 13') and to bring it into a corresponding engagement position. The resetting device (60) has a recoil-prevention means (61), the resetting device (60) therefore being relieved of recoil forces. As an alternative, or in addition, the energy store (40) has a stop buffer (53), and this therefore reduces the force impact when the energy store (40) strikes an end position. |
