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US 2004/0069588 A1Published application
Diaphragm spring for a friction clutch
AssigneeZF Sachs AG
InventorsMartin Pahrisch, Ronald Beck, Alfred Schraut, Erwin Ziegler, Frank Hirschmann
Life of this patent
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Abstract
A diaphragm spring for a friction clutch includes a ring-like body area and a plurality of spring tongues arranged in a row in the circumferential direction and extending radially inward from the body area. A stiffening rib formed in at least one of the spring tongues extends radially into the body area.
Claims8
A diaphragm spring for a friction clutch, comprising:
- a ring-like body area;
- a plurality of spring tongues extending radially inward from said body area;
- and
- a stiffening rib formed in at least one of said spring tongues and extending radially into said body area.
1 more element
A pressure plate assembly for a friction clutch, comprising:
- a housing;
- a pressure plate mounted in said housing for rotation in common about an axis of rotation, said pressure plate being axially movable with respect to said housing;
- and
- a diaphragm spring which loads said pressure plate axially away from said housing, said diaphragm spring comprising a ring-like body area, a plurality of spring tongues extending radially inward from said body area, and a stiffening rib formed in at least one of said spring tongues and extending radially into said body area.
1 more element
Dependencies are inferred from the claim text.