| 摘要 |
A wet multi-plate clutch includes a clutch outer connected to an input member, a clutch inner relatively rotatably disposed within the clutch outer and connected to an output member, a plurality of first friction plates axially slidably spline-fitted to an inner peripheral wall of the clutch outer and accommodated within the clutch outer, a plurality of second friction plates axially slidably spline-fitted to an outer peripheral wall of the clutch inner and superposed one on another alternately with the first friction plates, and a clamping device capable of clamping groups of the first and second friction plates axially to bring adjacent ones of the first and second friction plates into friction engagement with each other. In this wet multi-plate clutch, stopper devices are mounted at opposite ends of a spline groove in the clutch outer for limiting the distance of sliding movement of spline teeth of the group of the first friction plates. First spacing springs made of a spring steel plate are mounted to the spline teeth of the first friction plates, so that when the clutch is turned off, the first friction plates are pulled apart from one another to equal distances. Second spacing springs each formed of an annular wavy spring are also interposed between the second friction plates for pulling the second friction plates apart from one another to equal their distances which are equal to the distances when the clutch is turned off.
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