The door has a closer directly mounted in the door body. The closer uses a weight or a combination of weight (1) and spring (4) as closure force. The door catch is blocked when the door is used as a push-open door. The weight has a cord (2) running over pulley blocks (3) which is detachably fixed to the door post with a ring e.t.c. The fixture ring is placed on an eccentric, rotatably fixed bolt. The spring force is automatically applied while the door closes. The spring is tensioned and released by one or more locking bolts or tongues.
展开▼
