JP2006046368A5 - - Google Patents

Claims (10)

エンジンのフライホイールにクラッチディスク組立体のクッショニング機能付き摩擦部材を押し付け及び押し付け解除するためのクラッチカバー組立体であって、
前記フライホイールに固定されたクラッチカバーと、
前記クラッチカバーに対して相対回転不能に連結され、前記フライホイールとの間で前記摩擦部材を挟むためのプレッシャープレートと、
前記クラッチカバーに支持され、前記プレッシャープレートを前記フライホイール側に付勢するダイヤフラムスプリングと、
前記クラッチカバーに支持され、前記ダイヤフラムスプリングの付勢力に対抗する荷重を発生することで、前記ダイヤフラムスプリングの変位量に対する前記プレッシャープレートへの押付荷重の変化を平坦化するための第１弾性部材と、
前記クラッチカバーに支持され、レリーズ動作中に前記ダイヤフラムスプリングの付勢力に対抗する荷重を発生することで、前記摩擦部材のクッショニング機能によって前記ダイヤフラムスプリングの変位量が増大する過程において、前記プレッシャープレートへの押付荷重を減らしていく第２弾性部材と、
を備えたクラッチカバー組立体。 A clutch cover assembly for pressing and releasing a friction member with a cushioning function of a clutch disk assembly on an engine flywheel,
A clutch cover fixed to the flywheel;
A pressure plate connected to the clutch cover so as not to rotate relative to the clutch cover and sandwiching the friction member with the flywheel;
A diaphragm spring supported by the clutch cover and biasing the pressure plate toward the flywheel;
A first elastic member that is supported by the clutch cover and generates a load that opposes the urging force of the diaphragm spring to flatten a change in the pressing load to the pressure plate with respect to a displacement amount of the diaphragm spring; ,
In the process of increasing the amount of displacement of the diaphragm spring by the cushioning function of the friction member by generating a load that is supported by the clutch cover and that opposes the urging force of the diaphragm spring during the release operation, the pressure plate A second elastic member that reduces the pressing load of
A clutch cover assembly comprising: 前記第２弾性部材は、クラッチ連結状態からレリーズ動作が進むにつれて荷重を大きくしていく、請求項１に記載のクラッチカバー組立体。   2. The clutch cover assembly according to claim 1, wherein the second elastic member increases a load as a release operation proceeds from a clutch engaged state. 前記第２弾性部材は複数の弾性部材を組み合わせて構成されている、請求項１又は２に記載のクラッチカバー組立体。   The clutch cover assembly according to claim 1 or 2, wherein the second elastic member is configured by combining a plurality of elastic members. 前記第２弾性部材は前記クラッチカバーの前記摩擦部材側と軸方向反対側に配置されている、請求項１〜３のいずれかに記載のクラッチカバー組立体。   The clutch cover assembly according to any one of claims 1 to 3, wherein the second elastic member is disposed on an axially opposite side of the friction member side of the clutch cover. 前記プレッシャープレートから前記クラッチカバー側に延びる支持部材をさらに備え、
前記第２弾性部材は前記支持部材に対して前記摩擦部材側と軸方向反対側に荷重を付与する、請求項４に記載のクラッチカバー組立体。 A support member extending from the pressure plate to the clutch cover side;
The clutch cover assembly according to claim 4 , wherein the second elastic member applies a load to the support member on an axially opposite side to the friction member side. 前記第２弾性部材はコーンスプリングである、請求項１〜５のいずれかに記載のクラッチカバー組立体。   The clutch cover assembly according to any one of claims 1 to 5, wherein the second elastic member is a cone spring. 前記摩擦部材の摩耗に対して前記第２弾性部材の姿勢を維持するための摩耗補償機構をさらに備えている、請求項１に記載のクラッチカバー組立体。   The clutch cover assembly according to claim 1, further comprising a wear compensation mechanism for maintaining the posture of the second elastic member with respect to wear of the friction member. 前記摩耗補償機構は、前記摩擦部材が摩耗したときに前記第２弾性部材を摩耗前の姿勢に復帰させるための復帰機構を有している、請求項７に記載のクラッチカバー組立体。   The clutch cover assembly according to claim 7, wherein the wear compensation mechanism includes a return mechanism for returning the second elastic member to a posture before wear when the friction member is worn. 前記復帰機構は、前記プレッシャープレートから前記クラッチカバー側に延びる支持部材と、前記支持部材に対して係合して前記第２弾性部材から前記摩擦部材側と軸方向反対側に荷重を受ける支持係合部材と、前記支持部材に対してねじで係合して前記第２弾性部材から前記摩擦部材側と軸方向反対側に荷重を受ける支持係合部材と、前記支持係合部材が前記摩擦部材側と軸方向反対側に移動する方向に回転するよう前記支持係合部材に常時トルクを付与する第３弾性部材とを有する、請求項８に記載のクラッチカバー組立体。 The return mechanism includes a support member that extends from the pressure plate toward the clutch cover, and a support member that engages with the support member and receives a load from the second elastic member toward the friction member side in the axial direction. A combination member, a support engagement member that engages with the support member with a screw and receives a load from the second elastic member on the opposite side to the friction member side, and the support engagement member is the friction member and a third elastic member for applying a constant torque to the support and engagement member to rotate in a direction to move to the side axially opposite the clutch cover assembly according to claim 8. 前記摩耗補償機構は、前記第２弾性部材と異なる位置で前記プレッシャープレートから前記クラッチカバー側に延びる支持部材と、前記支持部材に摩擦係合して前記第２弾性部材から荷重を付与される摩擦係合部材とを有している、請求項７に記載のクラッチカバー組立体。   The wear compensation mechanism includes a support member that extends from the pressure plate to the clutch cover side at a position different from the second elastic member, and friction that is frictionally engaged with the support member and applied with a load from the second elastic member. The clutch cover assembly according to claim 7, further comprising an engaging member.