Patent ID: 7011199
Filing Date: 2006-03-14
Classification: F16D,F16H

Abstract:
1. A tandem frictional engagement device comprising: a first frictional engagement unit that couples a first coupling member to a first coupled member through a procedure wherein a friction disc that is relatively non-rotatably spline-fitted to the first coupling member is pressed by a first piston in a first direction and wherein the friction disc and another friction disc on the side of the first coupled member are clamped between the first piston and a first stopper member; and a second frictional engagement unit that couples a second coupling member to a second coupled member through a procedure wherein a friction disc that is relatively non-rotatably spline-fitted to the second coupling member is pressed by a second piston in a direction opposite to the first direction and wherein the friction disc and another friction disc on the side of the second coupled member are clamped between the second piston and a second stopper member, wherein the first coupling member and the second coupling member are constructed separately from each other, a splined leading end of a first fitting portion of the first coupling member to which the friction disc is spline-fitted is so disposed as to substantially abut on a second fitting portion of the second coupling member to which the friction disc is spline-fitted, and the leading end of the first coupling member is used as the second stopper member.