DOUBLE ACTING DOOR Russian patent published in 2017 - IPC E06B3/36 E05F3/10 

FIELD: construction.

SUBSTANCE: double acting door comprises the outer door frame comprising the inner contour of the outer door frame and the first upper crossbar on the upper side of the outer door frame with respect to said inner contour of the outer door frame. The inner door also comprises the inner door frame having the inner contour of the inner door frame and the second crossbar on the upper side of the inner door frame with respect to said inner contour of the inner door frame. The door additionally comprises at least one first loop attached between said outer door frame and the said inner door frame to provide turning said inner door frame with respect to said inner contour of the outer door frame between the open position and the closed position in the first direction. The door also contains a door leaf. The door additionally comprises at least one second loop attached between said inner door frame and said door leaf to provide turning said door leaf relative to said inner contour of the inner door frame in the second direction opposite to said first direction, between the open position and the closed position. The door also comprises the double acting door closer comprising the housing attached to said second crossbar, the guide chamber formed in said housing, the first arm comprising the first front end, the first abutment located at said first front end, and the first rear end connected with the possibility to move together with said first upper crossbar, the second arm comprising the second front end, the second abutment located at said second front end, and the second rear end connected with the possibility to move together with said door leaf, the gear shaft rotatably mounted in said guide chamber of said housing. Said gear shaft comprises the upper end and the opposite lower end, respectively extending from the opposite upper and lower sides of said housing, the spring element mounted in said guide chamber and having the first end abutting on one butt wall of said housing, and the slide abutting on the second end of said spring element in said guide chamber. Wherein said slider comprises the gear guide engaged with the possibility to move together with said gear shaft. Wherein said first front end of said first arm is rotatably connected to the upper end of said gear shaft near the first cam. Wherein the first abutment is located parallel to said first cam, and can be moved to contact with said first cam or to withdraw from it. Wherein said second front end of said second arm is connected rotatably to the lower end of said gear shaft near said second cam. Wherein the second abutment is located parallel to said second cam, and may be selectively moved to contact with said second cam, or to withdraw from it.

EFFECT: improvement of operational reliability.

9 cl, 17 dwg