Siemens Schweiz Ag

Siemens Aktiengesellschaft

Andreas Pally

Jörg Hindermann

Dean B Anderson

Jörg Evertz

Christian Grossenbacher

Martin Sprecher

Florian Erich Böttger

Beat Kaelin

Markus Bretz

Beat Kälin

Various embodiments include a blocking apparatus comprising: a holding apparatus; a receiving element mounted in the holding apparatus about an axis of rotation, defining a through-opening with a through-axis parallel to the axis of rotation; a wrap spring mechanically prestressed in the holding apparatus, with a winding arranged around the receiving element; and a thermocouple made of a material having a lower melting temperature than the holding apparatus and/or the wrap spring. The thermocouple holds at least one end of the wrap spring with respect to the holding apparatus in the prestressed state in such a way that the receiving element can be freely rotated in both drive directions about the axis of rotation. The receiving element is blocked in one of the two drive directions in the relaxed state of the wrap spring and in the triggered state of a thermal fuse.

Blocking apparatus for a fire damper, blocking apparatus system and method for blocking a drive direction

Various embodiments include a transmission element for a spring return of an actuating drive comprising: a toothed wheel element with teeth at least in sections; and a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction. The locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.

Transmission element and actuating drive with a return spring and with a self-unlocking gear lock

An actuating drive contains a housing which has a first housing part and a second housing part. The two housing parts each have an edge, each edge having an end face, and the two end faces face each other when the two housing parts are joined. The first housing part and the second housing part can be detachably joined. The actuating drive is configured to accommodate an exchangeable connection module for a cable feed. The exchangeable connection module can be inserted into an opening of the first edge of the first housing part and the exchangeable connection module can be connected in a form-closed manner to the end faces of the edges in a region of the opening when the two housing parts are joined. Thus, an actuating drive, in particular for ventilation flaps or fire dampers, having high flexibility in the electrical connection contacting is provided.

Actuating drive having an electrical plug-in connection

At least a motor, a gear unit and an adjustment connection form an actuator. The gear unit is fitted with at least two mutually movable gear parts, as well as a spring acting on two of these that counteracts their movement out of an idle state. The gear unit is designed such that when an adjustment connection is blocked the motor moves the gear parts out of the idle state during operation to an operating point. In addition, the gear unit is designed such that during the movement out of the idle state it reduces the extent to which the movement is counteracted from a particular point upstream of the operating point.

Actuator

A motor and a gear unit form an actuator. The gear unit is fitted with at least two mutually movable gear parts, acted on by a spring that counteracts their movement out of an idle state. The gear unit is fitted with at least one manual actuator that when actuated switches the motor off, disengages two mutually interacting gear wheels of the at least two gear parts and forces the at least two gear parts into the idle state. When the motor moves the gear parts out of the idle state during operation to an operating point, a cam plate on a first gear part is contacted by a sensor element on a second gear part, and the spring acts on the first and second gear parts during the movement out of the idle state in accordance with a position on the cam plate of the sensor element.

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Allenwinden, Switzerland

Andreas Pally