Patent US3963105A successfully refreshed from Google Patents.
US3963105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing and clutch diaphragm assembly
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1974-05-23
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Granted: 1976-06-15
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Expires: 1994-05-23
Abstract
Abstract A friction clutch integrated with a clutch release bearing for use with automotive vehicles. The friction clutch is provided with a disc shape spring release member in which a plurality of radial slots are formed creating a corresponding number of radially extending spring-like arms. The clutch release bearing is formed as an anti-friction bearing wherein one of its race members has an annular shoulder extending substantially axially away from the rolling bodies located therebetween. The shoulder is provided with several tabs, or tangs, uniformly distributed about its free end and which extend through the slots between adjacent pairs of the spring release arms.
Inventors
- 👤 Horst Ernst
- 👤 Manfred Brandenstein
- 👤 Armin Olschewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:11
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/12; F16D23/14; F16D23/143
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
133 words
A clutch release bearing for attachment with a friction clutch having an annular spring release member in which a plurality of slots forming radially inwardly directed arms define a central bore, said clutch release bearing comprising an inner race member and and outer race member, both said race members being made of sheet metal and being arranged concentrically to one another, a plurality of rolling bodies being located between said race members, said inner race member being folded to have a Z-shaped cross section and being formed with an annular shoulder integral therewith and having a plurality of fingers uniformly distributed about its free end and being folded to extend substantially axially away from said rolling bodies and being adapted to project through the slots of said spring release member into engagement therewith.
Claim 2
Dependent Claim
133 words
A clutch release bearing for attachment with a friction clutch having an annular spring release member in which a plurality of slots forming radially inwardly directed arms define a central bore, said clutch release bearing comprising an inner race member and and outer race member, both said race members being made of sheet metal and being arranged concentrically to one another, a plurality of rolling bodies being located between said race members, said inner race member being folded to have a Z-shaped cross section and being formed with an annular shoulder integral therewith and having a plurality of fingers uniformly distributed about its free end and being folded to extend substantially axially away from said rolling bodies and being adapted to project through the slots of said spring release member into engagement therewith.
Claim 3
Dependent Claim
28 words
The clutch release bearing according to claim 1 wherein the free ends of the fingers on said inner race member are folded to have an L-shaped cross section.
Claim 4
Dependent Claim
21 words
The clutch release bearing according to claim 1 wherein said axially extending fingers are bent radially inwards at their free ends.
Claim 5
Dependent Claim
43 words
The clutch release bearing according to claim 1 wherein at least some of the slots of the spring release member have portions of reduced width forming a shoulder and said fingers engage within said slots over said shoulder formed by the reduced portion.
Claim 6
Dependent Claim
27 words
The clutch release bearing according to claim 1 wherein the diameter of said shoulder is greater than that of the central bore of said spring release member.
Claim 7
Dependent Claim
36 words
The clutch release bearing according to claim 1 wherein the folded ends of said fingers on said inner race member provide substantially radially directed walls adapted to engage the front face of said spring release member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |