Patent US4494642A successfully refreshed from Google Patents.
US4494642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch disc
Assignee: Exedy Corp
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Filing: 1982-02-09
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Granted: 1985-01-22
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Expires: 2002-02-09
Abstract
Abstract The present invention discloses a clutch disc comprising a splined hub, an inner flange projecting radially from the outer periphery of the hub, an outer flange arranged around and meshing with the inner flange with a circumferential space therebetween, a pair of sub-plates fixed to the outer flange, a weak torsion spring connecting the sub-plates and the inner flange, and a retaining plate and a clutch plate connected to the outer flange by strong torsion springs.
Inventors
- 👤 Yasuyuki Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:36
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/123; F16F15/12353; F16F15/1236; F16F15/12366; F16D13/644
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
213 words
A clutch disc comprising: a splined hub; an inner flange projecting radially from the outer periphery of said hub; an outer flange arranged around and meshed with said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein; and strong torsion springs arranged in said openings formed in said outer flange, retaining plate and clutch plate.
Claim 2
Dependent Claim
213 words
A clutch disc comprising: a splined hub; an inner flange projecting radially from the outer periphery of said hub; an outer flange arranged around and meshed with said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein; and strong torsion springs arranged in said openings formed in said outer flange, retaining plate and clutch plate.
Claim 3
Dependent Claim
226 words
A clutch disc comprising: a splined hub; an inner flange formed with outer teeth projecting radially from the outer periphery of said hub; an outer flange formed with inner teeth arranged around and meshed with said outer teeth of said said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein; and strong torsion springs arranged in said openings formed in said outer flange, retaining plate and clutch plate.
Claim 4
Dependent Claim
226 words
A clutch disc comprising: a splined hub; an inner flange formed with outer teeth projecting radially from the outer periphery of said hub; an outer flange formed with inner teeth arranged around and meshed with said outer teeth of said said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein; and strong torsion springs arranged in said openings formed in said outer flange, retaining plate and clutch plate.
Claim 5
Dependent Claim
240 words
A clutch disc comprising: a splined hub; an inner flange formed with outer teeth projecting radially from the outer periphery of said hub; an outer flange formed with inner teeth arranged around and meshed with said outer teeth of said said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings, said opening in said inner flange being formed within one of said outer teeth; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein; and strong torsion springs arranged in said openings formed in said outer flange, retaining plate and clutch plate.
Claim 6
Dependent Claim
240 words
A clutch disc comprising: a splined hub; an inner flange formed with outer teeth projecting radially from the outer periphery of said hub; an outer flange formed with inner teeth arranged around and meshed with said outer teeth of said said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings, said opening in said inner flange being formed within one of said outer teeth; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein; and strong torsion springs arranged in said openings formed in said outer flange, retaining plate and clutch plate.
Claim 7
Dependent Claim
276 words
A clutch disc comprising: a splined hub; an inner flange formed with outer teeth projecting radially from the outer periphery of said hub; an outer flange formed with inner teeth arranged around and meshed with said outer teeth of said said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings, said opening in said inner flange being formed within one of said outer teeth; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein and having strong torsion springs arranged in said openings; one of said openings in said outer flange extending radially inwardly to the inner periphery of said outer flange, and said outer tooth of said inner flange which contains said opening for said weak torsion spring extending radially outwardly into said one of said openings.
Claim 8
Dependent Claim
276 words
A clutch disc comprising: a splined hub; an inner flange formed with outer teeth projecting radially from the outer periphery of said hub; an outer flange formed with inner teeth arranged around and meshed with said outer teeth of said said inner flange but separated therefrom to provide a circumferential space therebetween; a pair of sub-plates fitted at their inner periphery to said hub, one of said sub-plates being fixed to each side face of said outer flange to support said flange on said hub, radially inner portions of said sub-plates being pressed to frictionally engage both side faces of said inner flange; said sub-plates and said inner flange being formed with axially registered openings therein and having a weak torsion spring arranged in said axially registered openings, said opening in said inner flange being formed within one of said outer teeth; a retaining plate and a clutch plate faced to axially outside faces of said sub-plates opposite to said flange; friction members positioned about said hub between said sub-plates and said retaining plate and clutch plate, respectively, said retaining plate and said clutch plate being connected together by pins so as to load pressure against said friction members and being supported by said hub; said outer flange, said retaining plate and said clutch plate being formed with axially registered openings therein and having strong torsion springs arranged in said openings; one of said openings in said outer flange extending radially inwardly to the inner periphery of said outer flange, and said outer tooth of said inner flange which contains said opening for said weak torsion spring extending radially outwardly into said one of said openings.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |