The closure servo control for especially fire-door consisting of fixed and through--way leaves has locking mechanism with clamping body, release bar and overload protector.

摘要

The through-way door leaf is fixed by a locking mechanism which is released by the fixed leaf. The locking mechanism has a clamping body (100) which jams the clamping-bar (6) cooperating with the through-way leaf. The fixed leaf cooperates with a release bar (7) which releases the clamped position between the clamping body and the clamping bar. An overload protector (13,14) wholly or partly releases the locking mechanism when great force is exerted on the through-way leaf.