Damper disc assembly having a friction mechanism with improved friction elements and spring members for vibration dampening, the spring members having improved spring seats

摘要

A damper disc assembly comprising:a power input rotary member (5) formed with a first recess (5e) on an inner radial surface thereof;a power output rotary member (2) formed with a second recess (2d) on an outer radial surface thereof, said power output rotary member (2) disposed adjacent to said power input rotary member (5) for relative rotary displacement with respect thereto;an elastic member (6) disposed within both said first (5e) and second (2d) recesses;a seat body (33) formed with a first support portion (43) and a second support portion (44), said second support portion (44) having an axial thickness greater than an axial thickness of said first support portion (43);wherein a first of said seat body (33) is disposed at a first end of said elastic member (6) and a second of said seat body (33) is disposed at a second end of said elastic member (6) within said first (5e) and second (2d) recesses elastically coupling said power input rotary member (5) and said power output rotary member (2), and where said first support portion (43) of said first of said seat body (33) is in a radially outward position and said second support portion of said first seat body is in a radially inward position, and said second support portion (44) of said second of said seat body (33) is in a corresponding radially outward position and said first support portion of said second seat body is in a radially inward position,said first recess (5e) is angularly offset from said second recess (2d).