Closure sequence control arrangement for double doors

摘要

In a closure sequence control arrangement for turnable double doors, both the door leaves (3,4) are provided with a door closer of their own (5,6) and with a turning arm (7,8) attached thereto and arranged to control a sliding bar (11,12) arranged in a guide rail (9) supported to a door frame so that at least a first sliding bar (11) functionally connected to a first door leaf (3) is continuously movable according to the turning movements of said door leaf The arrangement comprises a sequence control unit (10), which is provided with a blocking member (18) and with means, which, when the first door leaf (3) closes, is arranged to clamp the blocking member (18) tightly against the first sliding bar (11) in order to prevent closing of the first door leaf (3) before the second door leaf (4). The sequence control unit (10) includes a lock body element (15), which has a chamber (16) through which said first sliding bar (11) is led and in which said blocking member (18) is located. Said chamber (16) is provided with a guiding surface (17a), which is inclined with regard to said first sliding bar (11) and acts on the blocking member (18) for providing said clamping effect.