Patent US3754612A successfully refreshed from Google Patents.
US3754612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission apparatus in a motorized two-wheel vehicle
Assignee: Honda Motor Co Ltd
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Filing: 1971-11-03
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Granted: 1973-08-28
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Expires: 1991-11-03
Abstract
Abstract A motorized two-wheel vehicle has an engine supported from the frame via resilient damping members and the vehicle is provided with a power transmission from the engine to a rear wheel driven member such that the drive of the rear wheel is substantially unaffected by engine vibration. The power transmission comprises a drive member driven from the output shaft of the engine by a universal joint, the drive member being coupled to the driven member by a transmission member such as a chain, the driven member being connected at the free end of a fork having its other end pivotably connected to the frame.
Inventors
- 👤 K Yoshida
- 👤 Y Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:19
CPC Classifications
B; B62; B62M; B62M7/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
For a two-wheel vehicle having a vehicle frame, an engine supported from the frame and a rear wheel driven from the engine: a power transmission between the engine and the rear wheel comprising a driving member rotatably supported by the frame, a driven member coupled to the rear wheel in driving relation therewith, a power transmission member connecting the driving member and the driven member, means supporting the driven member from the frame for displacement relative thereto, means including a resilient damping member connecting the engine to the frame, said engine having an output shaft, and means comprising a universal joint drivingly connecting the output shaft of the engine and the driving member.
Claim 2
Dependent Claim
113 words
For a two-wheel vehicle having a vehicle frame, an engine supported from the frame and a rear wheel driven from the engine: a power transmission between the engine and the rear wheel comprising a driving member rotatably supported by the frame, a driven member coupled to the rear wheel in driving relation therewith, a power transmission member connecting the driving member and the driven member, means supporting the driven member from the frame for displacement relative thereto, means including a resilient damping member connecting the engine to the frame, said engine having an output shaft, and means comprising a universal joint drivingly connecting the output shaft of the engine and the driving member.
Claim 3
Dependent Claim
51 words
The combination as claimed in claim 1 wherein the means supporting the driven member from the frame comprises a fork member having front and rear ends, means pivotably connecting the front end of the fork to the frame, and means connecting the driven member to the rear end of the fork.
Claim 4
Dependent Claim
27 words
The combination as claimed in claim 2 wherein the driving and driven members are driving and driven sprockets and the power transmission member is a driving chain.
Claim 5
Dependent Claim
44 words
The combination as claimed in claim 2 wherein the universal joint comprises a shaft with integral balls at opposite ends thereof, the output shaft of the engine and the driving member being provided with respective bores, and means connecting the balls in respective bores.
Claim 6
Dependent Claim
36 words
The combination as claimed in claim 4 wherein the means connecting the balls in the bores comprises pins in said balls, said pins being slidably accommodated in respective slits provided in the shafts at said bores.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |