公开(公告)号：EP2690313A1

公开(公告)日：2014-01-29

申请号：EP13005043.8

申请日：2005-09-01

申请人： Litens Automotive Partnership

发明人： Lehtovaara, Jorma, J. ,  Frankowski, Marek

IPC分类号： F16H7/08

CPC分类号： F16H7/08 ,  F16H7/0831 ,  F16H2007/0806 ,  F16H2007/081 ,  F16H2007/0872

摘要： A tensioner has a base plate and a pivot arm. A first end of the pivot arm is pivotally mounted to the base plate for rotation about a first axis. A spring biases the pivot arm to rotate in a tensioning direction. A push rod assembly is pivotally mounted to the second end of the pivot arm. The push rod assembly is rotatable about a second axis extending parallel to the first axis. The push rod assembly frictionally engages the pivot arm generating frictional forces counter acting and damping the spring bias. When the tensioning guide is forced to rotate in the tensioning direction, the acting moment arm of the push rod force causing the guide to rotate towards the endless drive, is considerable longer at the end of the tensioning stroke than in the beginning of the stroke.

摘要翻译： 张紧器具有基板和枢转臂。 枢转臂的第一端枢转地安装到基板上以围绕第一轴线旋转。 弹簧偏压枢转臂以沿张紧方向旋转。 推杆组件枢转地安装到枢转臂的第二端。 推杆组件可绕平行于第一轴线延伸的第二轴线旋转。 推杆组件摩擦地接合枢转臂，产生摩擦力作用并阻尼弹簧偏压。 当张紧导向器被迫沿张紧方向旋转时，导致引导件朝向环形驱动器旋转的推杆力的作用力臂在张紧行程结束时比在行程开始时相当长。