公开(公告)号：US4073033A

公开(公告)日：1978-02-14

申请号：US658126

申请日：1976-02-13

Applicant: Sven-Olof Lexnas

Inventor： Sven-Olof Lexnas

IPC: E05F3/10 ,  E05F3/12

CPC classification number: E05F3/102 ,  E05F3/12 ,  E05Y2201/20 ,  E05Y2201/254 ,  E05Y2900/132 ,  Y10S16/09 ,  Y10T16/2766

Abstract: A door closing device of the type having a piston and cylinder is described, the piston being movable within the cylinder under the bias of a spring and being connected to an arm mechanism which is arranged to transmit movement of the piston into pivoting movement of a door and vice versa, the device including a number of by-pass channels arranged to bring portions of chambers separated by the piston into communication with one another, whereby to limit the speed of flow of a dampening medium contained in the cylinder and passing through the channels as the piston is reciprocated.

Abstract translation: 描述了具有活塞和气缸的类型的关闭装置，活塞可在弹簧的偏压下在气缸内移动并且连接到臂机构，臂机构被布置成将活塞的运动传递到门的枢转运动 反之亦然，所述装置包括多个旁路通道，其被布置成使由活塞分隔开的室的一部分彼此连通，由此限制容纳在气缸中并通过通道的润湿介质的流动速度 当活塞往复运动时。