前記クラッチインナ１８Ａは、前記クラッチアウタ１７内に同軸に配置されるようにして円筒状に形成され、複数枚の被動摩擦板２０，２０…の内周部が軸方向の移動を可能とするとともに相対回転を不能として該クラッチインナ１８Ａの外周に係合される。前記受圧板２１Ａは、前記クラッチアウタ１７およびクラッチインナ１８Ａ間に介在する位置に配置され、前記クラッチインナ１８Ａの一端が前記受圧板２１Ａに一体に結合される。
The clutch inner 18A is formed in a cylindrical shape so as to be coaxially disposed in the clutch outer 17, and the inner peripheral portions of the plurality of driven friction plates 20, 20,. Relative rotation is disabled and the clutch inner 18A is engaged with the outer periphery. The pressure receiving plate 21A is disposed at a position interposed between the clutch outer 17 and the clutch inner 18A, and one end of the clutch inner 18A is integrally coupled to the pressure receiving plate 21A.
また前記受圧板２１Ａには、前記クラッチインナ１８Ａおよび前記可動カム部材５２のスプライン係合部６１に潤滑油を導く潤滑油路６７が設けられており、前記メインシャフト１１からの潤滑油を、前記スリーブ２８の内周および前記メインシャフト１１の外周間、前記受け板５５と前記スリーブ２８および一次被動歯車１６との間の間隙、ならびに受圧板２１Ａの端面を経由して前記潤滑油路６７に導く経路６８の途中に、前記メインシャフト１１と同軸の前記皿ばね５９が配置される。
The pressure receiving plate 21A is provided with a lubricating oil passage 67 for introducing lubricating oil to the clutch inner 18A and the spline engaging portion 61 of the movable cam member 52, and the lubricating oil from the main shaft 11 is supplied to the pressure receiving plate 21A. between the inner circumference and the outer circumference of the main shaft 11 of the sleeve 28, the lubricating oil passage 6 7 gap, and through the end face of the pressure receiving plate 21A between the said bearing plate 55 the sleeve 28 and the primary driven gear 16 The Belleville spring 59 coaxial with the main shaft 11 is disposed in the middle of the guide path 68.
また前記潤滑油路６７の前記付勢部材側の開口端に前記皿ばね５９からの潤滑油を導くガイド部６９が、前記皿ばね５９を囲む円形にして前記受圧板２１Ａに設けられる。
The guide portion 69 for guiding the lubricating oil from the disc spring 59 to the open end of said biasing member side of said lubricating oil passage 6 7 is provided in the pressure receiving plate 21A and a circular surrounding the disc spring 59.
またカム機構５０を可動カム部材５２と協働して構成するようにして前記メインシャフト１１に相対回転不能に連結される固定カム部材５１に、受圧板２１Ａが相対回転可能に嵌装され、クラッチインナ１８Ａの軸方向に沿う一端側に臨む環状受け面５８が固定カム部材５１に設けられ、受圧板２１Ａを前記環状受け面５８に押しつける付勢力を発揮する付勢部材である皿ばね５９が、メインシャフト１１に設けられる受け板５５および受圧板２１Ａ間に設けられるので、受圧板２１Ａおよび固定カム部材５１の成形公差等による寸法差が生じた場合であっても受圧板２１Ａを押圧板２２Ａ側に向けて固定カム部材５１に押しつけて、クラッチ接続タイミングのずれが生じるのを抑制することができる。
In addition, the cam mechanism 50 is configured in cooperation with the movable cam member 52, and the pressure receiving plate 21A is fitted to the fixed cam member 51 connected to the main shaft 11 so as not to rotate relative to the main shaft 11 so as to be relatively rotatable. An annular receiving surface 58 facing one end along the axial direction of the inner 18A is provided on the fixed cam member 51, and a disc spring 59, which is an urging member that exerts an urging force that presses the pressure receiving plate 21A against the annular receiving surface 58, because provided between backing plate 55 and the pressure receiving plate 21A provided on the main shaft 11, the pressure receiving plate 21A and the fixed cam member 5 1 of the pressing plate 22A also pressure receiving plate 21A in a case where the dimensional difference caused by molding tolerances By pressing against the fixed cam member 51 toward the side, it is possible to suppress a shift in clutch connection timing.
