Importance

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Abstract

A wet multiple disk clutch apparatus for use in vehicles has an input shaft; a clutch drum mounted on the input shaft; a plurality of first clutch plates positioned in the clutch drum and movable in an axial direction of the clutch drum and restricted against rotation; an output shaft; a hub fixed to the output shaft; a plurality of second clutch plates movably mounted on the hub for movement in the axial direction of the hub and restricted against rotation and with one second clutch plate positioned between each adjacent pair of first clutch plates; an actuator on the clutch drum for pressing the first and second clutch plates in the axial direction for pressing them together in clutching engagement; a plurality of guide holes opening out of the clutch drum at positions spaced at intervals around the clutch drum and each guide hole extending in the axial direction of the clutch drum, each of the first clutch plates having a plurality of pairs of projections on the outer periphery and extending into corresponding guide holes; and a plurality of spring members, one positioned in each of the gaps between respective ones of the plurality of first clutch plates and normally urging the first clutch plates in a direction so as to widen the gaps between the first clutch plates, each spring member being a pair of leaf springs with both ends bent out of the plane of the leaf spring in the same direction, and the pair of leaf springs being engaged back to back at a center portion thereof, the ends of the leaf springs abutting respective projections of the pairs of projections on the periphery of adjacent first clutch plates, the leaf springs being loosely movably mounted for movement in the same direction as the clutch plates and independently of the clutch plates.

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First Claim