Friction clutch and method of making a diaphragm spring therefor
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United States of America Patent
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-
May 9, 1989
Issued Date -
N/A
app pub date -
Nov 30, 1987
filing date -
Mar 12, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A friction clutch wherein the diaphragm spring is installed between two annular seats which are carried by the clutch cover. At least one side of the spring has a set of radially extending reinforcing projections each of which extends in part into the annular main (outer) section and into one of the radially inwardly extending prongs. The respective seat has recesses for intermediate portions of such projections. The diaphragm spring is made of special spring steel and the recesses can be formed by deformation of and/or removal of material from the respective seat or seats.
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