Patent US4666015A successfully refreshed from Google Patents.
US4666015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power train for front and rear wheel drive vehicle
Assignee: Honda Motor Co Ltd
•
Filing: 1983-12-27
•
Granted: 1987-05-19
•
Expires: 2003-12-27
Abstract
Abstract A front and rear wheel drive vehicle having straddle-type seating. A power train is located beneath the seat and between the footpegs of the vehicle. The engine employs parallel output shafts located on either side of the crankshaft to drive power transmission means to the front and rear axles. A speed change mechanism is contained within the engine case along with the output shafts and includes a first transmission shaft between the crankshaft and one of the output shafts. In one embodiment, the cylinder block of the engine is illustrated as being inclined toward the speed change transmission such that the cylinder block, cylinder head and head cover do not extend laterally outwardly beyond the engine case. To employ both output shafts, sprockets are arranged on each shaft with a coupling chain. The orientation of the output shafts provides for a narrower engine profile.
Inventors
- 👤 Minoru Matsuda
- 👤 Takashi Shinozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:21
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/34; B60Y; B60Y2200/00; B60Y2200/10; B60Y2200/12; B60Y2200/124; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19102; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
A power train for a front and rear wheel drive vehicle comprising an engine having a crankshaft and an engine case; a first output shaft on a first side of said crankshaft and parallel thereto in said engine case; a second output shaft on a second side of said crankshaft and parallel thereto in said engine case; and a speed change transmission coupled between said crankshaft and said second output shaft, said first output shaft being driven by said second output shaft.
Claim 2
Dependent Claim
82 words
A power train for a front and rear wheel drive vehicle comprising an engine having a crankshaft and an engine case; a first output shaft on a first side of said crankshaft and parallel thereto in said engine case; a second output shaft on a second side of said crankshaft and parallel thereto in said engine case; and a speed change transmission coupled between said crankshaft and said second output shaft, said first output shaft being driven by said second output shaft.
Claim 3
Dependent Claim
17 words
The power train of claim 1 wherein said speed change transmission is positioned in said engine case.
Claim 4
Dependent Claim
29 words
The power train of claim 1 wherein said speed change transmission includes a first transmission shaft, said first transmission shaft being between said crankshaft and said second output shaft.
Claim 5
Dependent Claim
27 words
The power train of claim 3 wherein said engine further has a cylinder block extending from said engine case and being inclined toward said second output shaft.
Claim 6
Dependent Claim
20 words
The power train of claim 1 further comprising a drive chain and sprockets on said first and second output shafts.
Claim 7
Dependent Claim
66 words
The power train of claim 1 further comprising an electrical generator and a power train clutch, said generator being located at one end of said crankshaft and said clutch being coupled with the other end of said crankshaft, said first output shaft being adjacent one of said generator and said clutch and said second output shaft being adjacent the other of said generator and said clutch.
Claim 8
Dependent Claim
100 words
A power train for a front and rear wheel drive vehicle, comprising an engine having a crankshaft; a first output shaft on one side of said crankshaft and parallel thereto; a second output shaft on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first output shaft and said second output shaft to the vehicle wheels for front and rear wheel drive; and a speed change transmission coupled between said crankshaft and said second output shaft, said first output shaft being driven by said second output shaft.
Claim 9
Dependent Claim
100 words
A power train for a front and rear wheel drive vehicle, comprising an engine having a crankshaft; a first output shaft on one side of said crankshaft and parallel thereto; a second output shaft on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first output shaft and said second output shaft to the vehicle wheels for front and rear wheel drive; and a speed change transmission coupled between said crankshaft and said second output shaft, said first output shaft being driven by said second output shaft.
Claim 10
Dependent Claim
152 words
A power train for a front and rear wheel drive vehicle, comprising an engine having a crankshaft; a first output shaft on one side of said crankshaft and parallel thereto; a second output shaft on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first output shaft and said second output shaft to the vehicle wheels for front and rear wheel drive; power transmission means for transmitting power from said crankshaft to each of said first and second output shafts; and an electrical generator and a power train clutch, said generator being located at one end of said crankshaft and said clutch being coupled with the other end of said crankshaft, said first output shaft being adjacent one of said generator and said clutch and said second output shaft being adjacent the other of said generator and said clutch.
Claim 11
Dependent Claim
152 words
A power train for a front and rear wheel drive vehicle, comprising an engine having a crankshaft; a first output shaft on one side of said crankshaft and parallel thereto; a second output shaft on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first output shaft and said second output shaft to the vehicle wheels for front and rear wheel drive; power transmission means for transmitting power from said crankshaft to each of said first and second output shafts; and an electrical generator and a power train clutch, said generator being located at one end of said crankshaft and said clutch being coupled with the other end of said crankshaft, said first output shaft being adjacent one of said generator and said clutch and said second output shaft being adjacent the other of said generator and said clutch.
Claim 12
Dependent Claim
146 words
A front and rear drive vehicle comprising a frame; an engine having a crankshaft, an engine case and a cylinder block, said engine being positioned in said frame; a speed change transmission within said engine case; a first output shaft in said engine case on one side and parallel to said crankshaft; a second output shaft in said engine case on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first and second output shafts to the vehicle wheels; a seat on said frame; footpegs on said frame, said engine beneath said seat and between said footpegs; and a sprocket on each of said first and second output shafts and a drive chain, said drive chain extending between said sprocket on said first output shaft and said sprocket on said second output shaft.
Claim 13
Dependent Claim
146 words
A front and rear drive vehicle comprising a frame; an engine having a crankshaft, an engine case and a cylinder block, said engine being positioned in said frame; a speed change transmission within said engine case; a first output shaft in said engine case on one side and parallel to said crankshaft; a second output shaft in said engine case on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first and second output shafts to the vehicle wheels; a seat on said frame; footpegs on said frame, said engine beneath said seat and between said footpegs; and a sprocket on each of said first and second output shafts and a drive chain, said drive chain extending between said sprocket on said first output shaft and said sprocket on said second output shaft.
Claim 14
Dependent Claim
161 words
A front and rear drive vehicle comprising a frame; an engine having a crankshaft, an engine case and a cylinder block, said engine being positioned in said frame; a speed change transmission within said engine case; a first output shaft in said engine case on one side and parallel to said crankshaft; a second output shaft in said engine case on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first and second output shafts to the vehicle wheels; a seat on said frame; footpegs on said frame, said engine beneath said seat and between said footpegs; an electrical generator located at one end of said crankshaft; and a power train clutch coupled with the other end of said crankshaft, said first output shaft being adjacent one of said generator and said clutch and said second output shaft being adjacent the other of said generator and said clutch.
Claim 15
Dependent Claim
161 words
A front and rear drive vehicle comprising a frame; an engine having a crankshaft, an engine case and a cylinder block, said engine being positioned in said frame; a speed change transmission within said engine case; a first output shaft in said engine case on one side and parallel to said crankshaft; a second output shaft in said engine case on the other side of said crankshaft from said first output shaft and parallel thereto; power transmission means for transmitting power from said first and second output shafts to the vehicle wheels; a seat on said frame; footpegs on said frame, said engine beneath said seat and between said footpegs; an electrical generator located at one end of said crankshaft; and a power train clutch coupled with the other end of said crankshaft, said first output shaft being adjacent one of said generator and said clutch and said second output shaft being adjacent the other of said generator and said clutch.
References Cited (Backward Citations)
US566400A
Cited
GB190001002A
Cited
US1011664A
Cited
US1369923A
Cited
US2316477A
Cited
US3642083A
Cited
US3746113A
Cited
US4223567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |