Shop swing door with emergency safety mechanism - has single grooves in round plate and stop tube, with bottom bolt entry

摘要

There is locking mechanism, panic safety device, and door wing rotatably mounted on a tubular post, in the swing door layout, esp. in a passage barrier in a self-service shop. The wing is swung back to its initial position by a closing device. The guide-piece on the swivel lever is movable about a horizontal axis, and its guiding groove (32) is a slot. The circular plate (29) has only a single groove (28'), while the stop tube has a single locking groove (33). At the bottom of the latter there is a widened section (33") for entry by the safety bolt (24) in the event of panic safety mechanism (23) release. The wing has its range of swing limited b the tube outside stop faces striking on the safety bolt. There is no need for direction of swing to be reversible, and the stop tube is more stable.