公开(公告)号：US3797817A

公开(公告)日：1974-03-19

申请号：US3797817D

申请日：1972-06-22

Applicant: EXCEL IND

Inventor： DEISENROTH R

IPC: E05F1/10 ,  F16F3/04

CPC classification number: E05F1/1058 ,  E05Y2900/548 ,  F16F3/04

Abstract: The closure counterbalance is for attachment as a strut between a movable closure which is hingedly fastened to a support structure. The counterbalance includes a pair of tubular members telescopingly connected together in sliding relationship. A compression coil spring within the members urges the members apart. A wooden rod is provided within the tubular members. The wooden rod fixed extends into the spring in sliding relationship therewith to support and guide the spring and prevent the spring from buckling against the inner surface of the tubular members.

Abstract translation: 闭合平衡装置用于连接在可铰接地固定到支撑结构上的活动闭合件之间的支柱上。 平衡包括一对以滑动关系伸缩连接在一起的管状构件。 构件内的压缩螺旋弹簧促使构件分开。 管状构件内设有木杆。 固定的木杆与其滑动地延伸到弹簧中，以支撑和引导弹簧并防止弹簧抵靠管状构件的内表面弯曲。