公开(公告)号：US20070249446A1

公开(公告)日：2007-10-25

申请号：US11392419

申请日：2006-03-29

申请人： Minchun Hao ,  Michael Petrashko ,  Keming Liu ,  Oliver Stegelmann

发明人： Minchun Hao ,  Michael Petrashko ,  Keming Liu ,  Oliver Stegelmann

IPC分类号： F16H7/12

CPC分类号： F16H7/1218 ,  F16H7/1245 ,  F16H2007/0806 ,  F16H2007/081 ,  F16H2007/084

摘要： A tensioner comprising a base, a pivot arm pivotally connected to the base, a pulley journalled to the pivot arm, a first biasing member disposed between the base and the pivot arm, the first biasing member imparting a spring force to the pivot arm over a first operating range, a second biasing member disposed between the base and the pivot arm, and the second biasing member imparting a spring force to the pivot arm at a predetermined pivot arm position, the predetermined pivot arm position disposed within the operating range and beyond which predetermined pivot arm position the second biasing member supplements a spring force of the first biasing member.

摘要翻译： 张紧器，包括基座，枢转连接到所述基座的枢转臂，枢轴枢转的滑轮;设置在所述基座和所述枢转臂之间的第一偏压构件，所述第一偏置构件在所述枢转臂上方施加弹簧力， 第一操作范围，设置在所述基座和所述枢转臂之间的第二偏置构件，并且所述第二偏置构件在预定的枢转臂位置向所述枢转臂施加弹簧力，所述预定枢转臂位置设置在所述操作范围内并且超过所述枢转臂位置 预定的枢转臂位置，第二偏置构件补充第一偏置构件的弹簧力。