公开(公告)号：US06892869B2

公开(公告)日：2005-05-17

申请号：US10690815

申请日：2003-10-23

申请人： Masato Ookita ,  Makoto Amano ,  Kenji Toda ,  Kimikazu Ootsuki ,  Hiroki Kawana ,  Tarou Takashima

发明人： Masato Ookita ,  Makoto Amano ,  Kenji Toda ,  Kimikazu Ootsuki ,  Hiroki Kawana ,  Tarou Takashima

IPC分类号： F16D25/0638

CPC分类号： F16D25/0638

摘要： A multi-plate friction clutch includes: a clutch piston 10 which is fitted to a clutch outer and capable of being hydraulically operated to press a group of first and second friction plates toward a pressure-receiving plate; an annular retaining groove formed in a pressing surface of the clutch piston; and a buffering Belleville spring accommodated in the retaining groove and capable of abutting resiliently against the group of the first and second friction plates. The retaining groove has an annular projection formed at its axial opening edge for inhibiting the disengagement of the Belleville spring from the retaining groove. Thus, even when the number of the friction plates is increased, a total gap between the clutch piston and the pressure-receiving plate can be set freely without giving consideration to the falling-off of the Belleville spring.

摘要翻译： 多板摩擦离合器包括：离合器活塞10，其配合到离合器外部并且能够被液压地操作以将一组第一和第二摩擦板朝压力承受板按压; 形成在所述离合器活塞的按压面上的环状的保持槽; 以及容纳在所述保持槽中并且能够弹性抵靠所述第一和第二摩擦片组的缓冲的贝氏弹簧。 保持槽具有形成在其轴向开口边缘处的环形突起，用于阻止贝氏弹簧与保持槽分离。 因此，即使当摩擦片的数量增加时，离合器活塞和受压板之间的总间隙可以自由地设定，而不考虑到Belleville弹簧的脱落。