公开(公告)号：US4474045A

公开(公告)日：1984-10-02

申请号：US495315

申请日：1983-05-16

申请人： Lothar Kunze ,  Harald Vogt ,  Bruen Stadler ,  Anton Herr

发明人： Lothar Kunze ,  Harald Vogt ,  Bruen Stadler ,  Anton Herr

IPC分类号： F01C1/344 ,  F01C21/00 ,  F01C21/08 ,  B21D53/00

CPC分类号： F01C21/0809

摘要： The spring guide rail has several centering fingers and a bottom rail and is made out of a one-piece sheet metal strip into which substantially rectangular recesses are punched so that a ladder-type structure is formed with a pair of longitudinal bars being interconnected by cross bars. By repeated bending operations around given longitudinal axes the two parts of the bottom rail are formed by the longitudinal bars and the centering fingers are formed by the cross bars. Between the sections of the cross bars folded to face each other there is a space and in the bottom rail area projections are arranged which ensure the spacing between the opposite parts of the bottom rail. Thus, a simple and stable spring guide rail with a safe guidance is provided for the vane lifting springs.

摘要翻译： 弹簧导轨具有多个定中心的指状物和底部轨道，并且由单件金属板制成，其中大体上矩形的凹部被冲压到其中，使得梯形结构形成有一对纵向杆通过十字 酒吧。 通过围绕给定的纵向轴线的反复弯曲操作，底部轨道的两个部分由纵向杆形成，并且定心指状物由横杆形成。 在折叠成彼此面对的横杆的部分之间存在空间，并且在底部轨道区域中布置有凸起以确保底部轨道的相对部分之间的间隔。 因此，为叶片升降弹簧提供了具有安全引导的简单且稳定的弹簧导轨。