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US 5,960,921 AGranted
Friction clutch with spacer sleeves
AssigneeMannesmann Sachs AG
InventorsKlaus Hofmann, Claus Orth, Thomas Goppner, Klaus Betten
Life of this patent
Estimating the term…
Abstract
A friction clutch with a diaphragm spring which is fixed by a plurality of screws or rivets introduced at the housing. Each of these screws or rivets is surrounded by a spacer sleeve which is clamped between the housing and a circumferentially extending ring. Centering shoulders are provided in the ring for fixing the spacer sleeves, especially during operation.
Claims7
A friction clutch for a motor vehicle, comprising:
- a flywheel which defines an axis of rotation and has a friction surface;
- a clutch housing fastened to the flywheel;
- a hub arranged in the clutch housing, the hub having an inner toothing that is placeable on a gear shaft concentric to the axis of rotation so as to be fixed with respect to rotation relative to the gear shaft;
- at least one clutch disk connected with the hub so as to be fixed with respect to rotation relative thereto;
- a contact pressure plate connected with the clutch housing and with the flywheel so as to be fixed with respect to rotation relative thereto, but so as to be axially displaceable, the contact pressure plate having a friction surface;
- a diaphragm spring arranged between the clutch housing and the contact pressure plate for loading the contact pressure plate in a direction of the flywheel for clamping the clutch disk between the friction surfaces of the contact pressure plate and the flywheel;
- one of a contact bead and a wire ring arranged so as to support the diaphragm spring at the clutch housing on a medium diameter;
- a circumferentially extending ring with a contact bead arranged to support a side of the diaphragm spring located opposite the clutch housing;
- a plurality of spacer sleeves arranged concentrically to the axis of rotation and circumferentially on the clutch housing so as to support the circumferentially extending ring, the spacer sleeves penetrating corresponding openings in the diaphragm spring;
- and
- means for fixing the spacer sleeves at the clutch housing, the circumferentially extending ring having centering shoulders configured to contact each spacer sleeve so as to fix the spacer sleeve in a form-locking manner with the circumferentially extending ring at least in the circumferential direction.
8 more elements
Dependencies are inferred from the claim text.