公开(公告)号：US3934307A

公开(公告)日：1976-01-27

申请号：US468245

申请日：1974-05-09

Applicant: Thomas R. Lasier ,  Roy Pollack

Inventor： Thomas R. Lasier ,  Roy Pollack

IPC: E05F1/10 ,  E05F3/10 ,  E05F1/08

CPC classification number: E05F1/105 ,  E05F3/102 ,  E05Y2201/492 ,  E05Y2800/22 ,  E05Y2900/132 ,  Y10T16/2804 ,  Y10T16/285 ,  Y10T16/293 ,  Y10T16/577

Abstract: An adjustable spring loading mechanism for use in controlling the movement of doors and the like. The mechanism includes a cylinder housing and a piston slideable within the housing. A plurality of biasing means are arranged in the housing in engagement with the piston, and apply individual biasing forces to the piston which cooperate to produce a total resultant biasing force. The biasing means are provided with different effective lengths so as to engage with the piston at different positions in the cylinder and thereby vary the total biasing force.

Abstract translation: 用于控制门等的运动的可调弹簧加载机构。 该机构包括可在壳体内滑动的气缸壳体和活塞。 多个偏压装置布置在壳体中与活塞接合，并且向活塞施加单独的偏压力，其被配合以产生总的合成偏压力。 偏置装置具有不同的有效长度，以便在气缸中的不同位置处与活塞接合，从而改变总的偏置力。