Patent US4220233A successfully refreshed from Google Patents.
US4220233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch assembly for use with an internal combustion engine
Assignee: Toyota Motor Corp
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Filing: 1978-06-16
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Granted: 1980-09-02
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Expires: 1998-06-16
Abstract
Abstract A clutch assembly for use with a vehicle's internal combustion engine, including a driving flywheel connected to an engine output, a driven flywheel rotatably mounted on the driving flywheel through a flanged bush, coil springs provided between the driving flywheel and the driven flywheel for imparting the rotational torque therebetween, and damping elements provided therebetween for absorbing vibration due to the fluctuating torque produced by the engine. The damping elements comprise a thrust washer, a friction plate and a dish spring which normally urges the driven flywheel toward the driving flywheel.
Inventors
- 👤 Hiroshi Ban
- 👤 Hideichi Hori
- 👤 Ryoichi Kudo
- 👤 Akio Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:55
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/131; F16F15/13164; F16F15/13171; F16F15/13178; F16D; F16D13/00; F16D13/22; F16D13/38; F16D13/46; F16D13/48; F16D13/50; F16D3/00; F16D3/02; F16D3/12; F16F15/121; F16F15/127; F16F15/139; F16F15/14; F16F15/1407; F16F15/1414; F16F15/1421; F16F15/1428; F16D13/58; F16D13/70; F16D2013/703
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
186 words
A flywheel assembly for use with an internal combustion engine comprising, a driving flywheel drivingly connected to said internal combustion engine and provided with recess means, said driving flywheel having a boss portion; a flanged bush fitted on said boss portion of said driving flywheel; a driven flywheel rotatably mounted on, and co-axially positioned by, said flanged bush; a first plate confronting one side of said driving flywheel at the side of said engine; a second plate confronting the other side of said driving flywheel and interposed between said driving flywheel and said driven flywheel; each of said plates being fixed to said driven flywheel and provided with recess means in alignment with said recess means of said driving flywheel; resilient means disposed in said recess means of said driving flywheel and said first and second plates, thereby imparting a rotational torque from said driving flywheel to said driven flywheel; and damping elements provided between said first plate and said driving flywheel and having a thrust washer, a friction plate and a dish spring, thereby absorbing virbration due to the fluctuating torque produced by said engine.
Claim 2
Dependent Claim
186 words
A flywheel assembly for use with an internal combustion engine comprising, a driving flywheel drivingly connected to said internal combustion engine and provided with recess means, said driving flywheel having a boss portion; a flanged bush fitted on said boss portion of said driving flywheel; a driven flywheel rotatably mounted on, and co-axially positioned by, said flanged bush; a first plate confronting one side of said driving flywheel at the side of said engine; a second plate confronting the other side of said driving flywheel and interposed between said driving flywheel and said driven flywheel; each of said plates being fixed to said driven flywheel and provided with recess means in alignment with said recess means of said driving flywheel; resilient means disposed in said recess means of said driving flywheel and said first and second plates, thereby imparting a rotational torque from said driving flywheel to said driven flywheel; and damping elements provided between said first plate and said driving flywheel and having a thrust washer, a friction plate and a dish spring, thereby absorbing virbration due to the fluctuating torque produced by said engine.
Claim 3
Dependent Claim
43 words
The flywheel assembly of claim 1 wherein said thrust washer is engaged with said first plate, said friction plate is interposed between said thrust washer and said driving flywheel, and said dish spring is interposed between said thrust washer and said first plate.
Claim 4
Dependent Claim
43 words
The flywheel assembly of claim 1 wherein said thrust washer is engaged with said driving flywheel, said friction plate is interposed between said thrust washer and said first plate, and a dish spring is interposed between said thrust washer and said driving flywheel.
Claim 5
Dependent Claim
54 words
The flywheel assembly of claim 1 wherein at least one of said recess means of said driving flywheel is smaller in size than said recess means of eah of said plates, while the other recess means of said driving flywheel are substantially identical in size with said recess means of each of said plates.
Claim 6
Dependent Claim
27 words
The flywheel assembly of claim 1 wherein said driving flywheel is provided with holes for loosely inserting pins, respectively, which secure said plates to said driven flywheel.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US4002043A
Cited
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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) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |