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US 7,607,524 B2Granted
Clutch cover assembly
AssigneeExedy Corporation
InventorNorihisa Uenohara
Life of this patent
Estimating the term…
Abstract
A clutch cover assembly 1 has a clutch cover 2, a pressure plate 3, a diaphragm spring 4, a first low release load characteristic achieving mechanism 8, and a second low release load characteristic achieving mechanism 30. The second low release load characteristic achieving mechanism 30 includes a support bolt 31, a holder 32, and an adjust spring 39. The adjust spring 39 is located on a side of the holder 32 near the friction member 53 in the axial direction.
Claims20
A clutch cover assembly for pressing a friction member of a clutch disc assembly with a cushioning function against a flywheel of an engine and for releasing the pressing, comprising:
- a clutch cover being configured to be fixed to the flywheel;
- a pressure plate being non-rotatably fixed to said clutch cover to sandwich the friction member between the flywheel and itself;
- a diaphragm spring being supported by said clutch cover to urge said pressure plate toward the flywheel;
- a first elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring such that change in the pressing load to said pressure plate in response to displacement magnitude of said diaphragm spring is decreased;
- a second elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring during a release operation such that pressing load to said pressure plate is progressively decreased as displacement magnitude of said diaphragm spring is increased by the cushioning effect of the friction member;
- and
- a wear compensation mechanism maintaining a posture of said second elastic member in response to wear of the friction member, said wear compensation mechanism including
- a support member extending from said pressure plate toward said clutch cover,
- a support and engagement member being threadedly engaged with the outer circumference of said support member and being given a load from said second elastic member in an axial direction away from the friction member, and
- a third elastic member constantly applying torque to said support and engagement member so that said support and engagement member rotates to move in an axial direction away from the friction member, said third elastic member being located on a side of said support and engagement member near the friction member in the axial direction.
7 more elements
A clutch cover assembly for pressing a friction member of a clutch disc assembly with a cushioning function against a flywheel of an engine and for releasing the pressing, comprising:
- a clutch cover being configured to be fixed to the flywheel;
- a pressure plate being non-rotatably fixed to said clutch cover to sandwich the friction member between the flywheel and itself;
- a diaphragm spring being supported by said clutch cover to urge said pressure plate toward the flywheel;
- a first elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring such that change in the pressing load to said pressure plate in response to displacement magnitude of said diaphragm spring is decreased;
- a second elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring during a release operation such that pressing load to said pressure plate is progressively decreased as displacement magnitude of said diaphragm spring is increased by the cushioning effect of the friction member;
- and
- a wear compensation mechanism maintaining a posture of said second elastic member in response to wear of the friction member, said wear compensation mechanism including
- a support member extending from said pressure plate toward said clutch cover,
- a support and engagement member being threadedly engaged with the outer circumference of said support member and being given a load from said second elastic member in an axial direction away from the friction member, and
- a third elastic member constantly applying torque to said support and engagement member so that said support and engagement member rotates to move in an axial direction away from the friction member, said third elastic member being located between said clutch cover and said pressure plate in the axial direction.
7 more elements
A clutch cover assembly for pressing a friction member of a clutch disc assembly with a cushioning function against a flywheel of an engine and for releasing the pressing, comprising:
- a clutch cover being configured to be fixed to the flywheel;
- a pressure plate being non-rotatably fixed to said clutch cover to sandwich the friction member between the flywheel and itself;
- a diaphragm spring being supported by said clutch cover to urge said pressure plate toward the flywheel;
- a first elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring such that change in the pressing load to said pressure plate in response to displacement magnitude of said diaphragm spring is decreased;
- a second elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring during a release operation such that pressing load to said pressure plate is progressively decreased as displacement magnitude of said diaphragm spring is increased by the cushioning effect of the friction member;
- and
- a wear compensation mechanism maintaining a posture of said second elastic member in response to wear of the friction member, said wear compensation mechanism including
- a support member extending from said pressure plate toward said clutch cover,
- a support and engagement member being threadedly engaged with the outer circumference of said support member and being given a load from said second elastic member in an axial direction away from the friction member, and
- a third elastic member constantly applying torque to said support and engagement member so that said support and engagement member rotates to move in an axial direction away from the friction member, said support and engagement member covering an end of said support member.
7 more elements
A clutch cover assembly for pressing a friction member of a clutch disc assembly with a cushioning function against a flywheel of an engine and for releasing the pressing, comprising:
- a clutch cover being configured to be fixed to the flywheel;
- a pressure plate being non-rotatably fixed to said clutch cover to sandwich the friction member between the flywheel and itself;
- a diaphragm spring being supported by said clutch cover to urge said pressure plate toward the flywheel;
- a first elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring such that change in the pressing load to said pressure plate in response to displacement magnitude of said diaphragm spring is decreased;
- and
- a second elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring during a release operation such that pressing load to said pressure plate is progressively decreased as displacement magnitude of said diaphragm spring is increased by the cushioning effect of the friction member,
- said first and second elastic members being arranged in an axial direction.
4 more elements
A clutch cover assembly for pressing a friction member of a clutch disc assembly with a cushioning function against a flywheel of an engine and for releasing the pressing, comprising:
- a clutch cover being configured to be fixed to the flywheel;
- a pressure plate being non-rotatably fixed to said clutch cover to sandwich the friction member between the flywheel and itself;
- a diaphragm spring being supported by said clutch cover to urge said pressure plate toward the flywheel;
- a first elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring such that change in the pressing load to said pressure plate in response to displacement magnitude of said diaphragm spring is decreased;
- and
- a second elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring during a release operation such that pressing load to said pressure plate is progressively decreased as displacement magnitude of said diaphragm spring is increased by the cushioning effect of the friction member, said second elastic member being located between said first elastic member and said pressure plate in the axial direction.
3 more elements
A clutch cover assembly for pressing a friction member of a clutch disc assembly with a cushioning function against a flywheel of an engine and for releasing the pressing, comprising:
- a clutch cover being configured to be fixed to the flywheel;
- a pressure plate being non-rotatably fixed to said clutch cover to sandwich the friction member between the flywheel and itself;
- a diaphragm spring being supported by said clutch cover to urge said pressure plate toward the flywheel;
- a first elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring such that change in the pressing load to said pressure plate in response to displacement magnitude of said diaphragm spring is decreased;
- a second elastic member being supported by said clutch cover to generate a load counteracting an urging force of said diaphragm spring during a release operation such that pressing load to said pressure plate is progressively decreased as displacement magnitude of said diaphragm spring is increased by the cushioning effect of the friction member;
- and
- a support member being fixed to said pressure plate to receive the load from said first and second elastic members.
4 more elements
Dependencies are inferred from the claim text.