Patent US4722235A successfully refreshed from Google Patents.
US4722235A
Expired / Lapsed
US
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Power takeoff apparatus for off the road vehicle
Assignee: Yamaha Motor Co Ltd
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Filing: 1985-07-12
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Granted: 1988-02-02
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Expires: 2005-07-12
Abstract
Abstract An off the road vehicle embodying an engine, transmission assembly including a primary change speed transmission and an auxiliary change speed transmission with the engine crankshaft and primary and auxiliary transmission shafts all extending transversely relative to the longitudinal axis of the vehicle. Certain of the transmission driven shafts extend through the respective transmission casings to provide auxiliary power takeoffs.
Inventors
- 👤 Toshiharu Kumazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:40
CPC Classifications
B; B62; B62K; B62K5/00; B62K5/01; B60; B60K; B60K17/00; B60K17/04; B60K17/06; B60K17/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
148 words
In a transmission and power takeoff arrangement for an off the road vehicle having an engine transmission assembly comprising a main casing containing a crankshaft having its axis of rotation extending transversely relative to a longitudinal axis of the vehicle, a primary change speed transmission within said main casing and including at least one driven shaft rotatable about an axis disposed parallel to said crankshaft axis, an auxiliary transmission contained within a casing and driven by said change speed transmission and having at least one driven shaft rotatable about an axis that is parallel to said crankshaft axis, and a final drive driven by said auxiliary transmission driven shaft for driving at least one wheel of said vehicle, at least one of said driven shafts having an end extending through the respective casing and providing a power takeoff for driving an implement or the like from the engine.
Claim 2
Dependent Claim
148 words
In a transmission and power takeoff arrangement for an off the road vehicle having an engine transmission assembly comprising a main casing containing a crankshaft having its axis of rotation extending transversely relative to a longitudinal axis of the vehicle, a primary change speed transmission within said main casing and including at least one driven shaft rotatable about an axis disposed parallel to said crankshaft axis, an auxiliary transmission contained within a casing and driven by said change speed transmission and having at least one driven shaft rotatable about an axis that is parallel to said crankshaft axis, and a final drive driven by said auxiliary transmission driven shaft for driving at least one wheel of said vehicle, at least one of said driven shafts having an end extending through the respective casing and providing a power takeoff for driving an implement or the like from the engine.
Claim 3
Dependent Claim
28 words
In a transmission and power takeoff arrangement as set forth in claim 1 wherein both of the driven shafts extend through the casings and provide respective power takeoffs.
Claim 4
Dependent Claim
38 words
In a transmission and power takeoff arrangment as set forth in claim 1 further including clutch means for selectively coupling the final drive to the auxiliary transmission driven shaft for disconnecting the final drive during power takeoff operation.
Claim 5
Dependent Claim
42 words
In a transmission and power takeoff arrangement as set forth in claim 1 wherein the primary change speed transmission driven shaft comprises a secondary shaft thereof and also extends into the auxiliary transmission casing for providing the input of the auxiliary transmission.
Claim 6
Dependent Claim
37 words
In a transmission and power takeoff arrangement as set forth in claim 4 wherein the driven shaft of the primary change speed transmission has its end extending beyond the auxiliary transmission casing for providing the power takeoff.
Claim 7
Dependent Claim
32 words
In a transmission and power takeoff arrangement as set forth in claim 5 wherein the auxiliary transmission driven shaft further extends through the auxiliary transmission casing for providing a second power takeoff.
Claim 8
Dependent Claim
38 words
In a transmission and power takeoff arrangement as set forth in claim 5 further including clutch means for selectively coupling the final drive to the auxiliary transmission driven shaft for disconnecting the final drive during power takeoff operation.
Claim 9
Dependent Claim
38 words
In a transmission and power takeoff arrangement as set forth in claim 6 further including clutch means for selectively coupling the final drive to the auxiliary transmission driven shaft for disconnecting the final drive during power takeoff operation.
Claim 10
Dependent Claim
39 words
In a transmission and power takeoff arrangement as set forth in claim 1 wherein the vehicle is a four-wheeled vehicle having a rider's seat adapted to accommodate only a single rider and having only a pair of driven wheels.
Claim 11
Dependent Claim
23 words
In a transmission and power takeoff arrangement as set forth in claim 9 wherein the power takeoff extends transversely relative to the vehicle.
Claim 12
Dependent Claim
23 words
In a transmission and power takeoff arrangement as set forth in claim 1 wherein the power takeoff extends transversely relative to the vehicle.
Claim 13
Dependent Claim
30 words
In a transmission and power takeoff arrangement as set forth in claim 2 wherein both of the power takeoff shafts extend transversely relative to the longitudinal axis of the vehicle.
References Cited (Backward Citations)
US1487445A
Cited
US1559629A
Cited
US2506671A
Cited
FR1101679A
Cited
US2945382A
Cited
FR76973E
Cited
DE1219335B
Cited
GB1066044A
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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) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |