WET-TYPE MULTIPLE-PLATE FRICTION COUPLING DEVICE

摘要

A wet-type multiple-plate friction coupling device (10) has a side plate member (20A), a drum (20) having a drum member (20B) integrally formed with a retaining plate, internal teeth alternately arranged in the drum, outer-teeth discs (30, 40), spline inner teeth (22) arranged on the inner periphery of the drum member (20B), spline outer teeth (42) formed on the outer periphery of the outer-teeth disc (40) and engaging with the spline inner teeth (22), and a hub (60) with spline outer teeth (62) engaging with spline inner teeth (32) formed on the inner periphery of the inner-teeth disc (30). On the side plate member (20A) is formed spline outer teeth (23) having the same shape as the spline outer teeth (42) of the outer-teeth disc (40), and the drum member (20B) is connected and fixed to the side plate member (20A) by engaging the spline inner teeth (22) of the drum member (20B) to the spline outer teeth (23).