DOUBLE-LEAVE DOOR WITH A DOOR-CLOSING SELECTOR

摘要

1. A double-leaf door which is spring-loaded in the closing direction and which has a device for damping the closing movement and a closing sequence regulator, in particular a fire retarding door, wherein the damping of the trailing leaf takes place via a hydraulic damping element with a throttled transfer flow between two pressure chambers which are controlled in opposite senses by a double acting piston, characterised in that a control valve (3) which is directly or indirectly actuatable via the leading leaf is arranged in the transfer flow passage (2) from the one pressure chamber (11 or 12 respectively) to the other.