Abstract: A retaining arrangement is provided with at least one light-barrier fastening device for fastening the light-barrier element on the retaining arrangement, and with at least one first door-fastening device, for fastening the retaining arrangement on an element of a first type of door, and also with at least one second door-fastening device for fastening the retaining arrangement on an element of a second type of door, and/or with a floor-fastening/ground-fastening or wall-fastening device, for fastening the retaining arrangement on the floor/ground or a surrounding wall and/or on an element of an undetermined type of door.

Abstract: A light barrier housing is provided in a light barrier for monitoring an automatically driven architectural closure. In order to reduce mounting work, a cable connection having at least one clamped connection is provided.

Abstract: The invention relates to an emergency release device for a building closure operator for decoupling a motorized building closure from a motor operator assembly under emergency conditions. To diminish the risk of injury by free-fall of a decoupled building closure wing by a simple and cost-effective design the invention proposes providing a safety or securing unit which safeguards or secures the emergency release device against unintentional or unauthorized actuation.

Abstract: The invention relates to an emergency release device (4) for a building closure operator (2) for decoupling a motorized building closure from a motor operator assembly (6, 9) under emergency conditions. To diminish the risk of injury by free-fall of a decoupled building closure wing by a simple and cost-effective design the invention proposes providing a safety or securing means (24) which safeguards or secures the emergency release device (4) against unintentional or unauthorized actuation.