Belimo Holding Ag

Beat Weber

Atilla Beker

Peter Dreher

Mario Fiorucci

Paul F Guyer

Christoph Wintsch

Andi Furrer

The present invention relates to a blocking device () for a damper drive, wherein the blocking device () can be transferred by activation from an inoperative state into an alternative activated state. The blocking device () comprises a movably mounted blocking element () which, in a blocking position, blocks an output member () in a safety position. The blocking device () further comprises a drive element () which, when the blocking device () is activated, moves the blocking element () into the blocking position. The blocking device further comprises an activating element () which, when a blocking temperature has been exceeded, activates the blocking device () by an irreversible change in shape. Also disclosed are a damper drive with a blocking device, a fire protection device and a method for operating a fire protection device.

Locking device for a damper actuator

An actuator (M,S) with a motor () and a motor controller () is configurable to operate as a master or a slave to another actuator which is coupled mechanically for driving a common load. For the case where the actuator (M) is set as the master, the motor controller () receives on an input terminal (Y) an external position control signal (pC), generates a motor control signal (sC) for controlling the motor () based on the position control signal (pC), and supplies the motor control signal (sC) to an output terminal (U) for controlling a slave. For the case where the actuator (S) is set as the slave, the motor controller () controls the motor () by supplying to the motor () the motor control signal (sC) received from the master. Controlling the actuators with a master improves workload balancing and reduces damages to transmission mechanics of the actuators.

Actuator with electric motor and motor controller

An actuator is described with a prestressed reduction gear, which acts via a drive organ, particularly in the form of a drive segment, of a linear drive or a drive spindle upon an actuator for regulating a gas or fluid flow, particularly in the fields of heating ventilation, air-conditioning and fire and smoke protection. Actuating movement is limited by end stops. At least one inner end stop on the housing side limits the rotational freedom of an end wheel, which is in a positive fit with the drive organ, up to more than a full rotation. In a prestressed reduction gear, a switching device g can comprise two spur gears which have identical diameter and can be driven in the opposite direction for changing the M direction of movement of the drive organ, each of which have a pinion which can be displaced in the axial direction. The pinions are in each axial position in a positive fit with the drive organ. One of the two pinions, respectively, can be locked in a torque fixed manner with one of the two pinions having the same diameter.

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Zurich, Switzerland

Beat Weber