US3757882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorcycle which can be disassembled into front and rear subassemblies
Assignee: Honda Motor Co Ltd
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Filing: 1970-10-05
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Granted: 1973-09-11
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Expires: 1990-10-05
Abstract
Abstract A motorcycle with rear wheel drive is constructed with a front subassembly having a front fork carrying a front wheel separably connected to a vehicle frame on a rear subassembly. The frame is provided with an arch-shaped support stand at such a position that the center of gravity of the connected subassemblies is forward of the support stand while the center of gravity of the rear subassembly alone is rearward of the support stand.
Inventors
- 👤 S Honda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:53
CPC Classifications
B; B62; B62K; B62K15/00; F; F02; F02B; F02B61/00; F02B61/02; B62K2015/001
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
108 words
A motorcycle comprising front and rear subassemblies, the front subassembly including a front wheel, the rear subassembly including a rear wheel and an engine, means on said subassemblies for detachably connecting the same together, and a pivotable support stand on the rear subassembly positioned thereon such that the center of gravity of the rear subassembly alone is rearward of the stand whereas the center of gravity of the connected subassemblies is forward of the stand, said support stand adapted to maintain said rear wheel in raised position in one mode thereof upon connection of said front and rear subassemblies and in ground-contacting position upon disconnection of said subassemblies.
Claim 2
Dependent Claim
108 words
A motorcycle comprising front and rear subassemblies, the front subassembly including a front wheel, the rear subassembly including a rear wheel and an engine, means on said subassemblies for detachably connecting the same together, and a pivotable support stand on the rear subassembly positioned thereon such that the center of gravity of the rear subassembly alone is rearward of the stand whereas the center of gravity of the connected subassemblies is forward of the stand, said support stand adapted to maintain said rear wheel in raised position in one mode thereof upon connection of said front and rear subassemblies and in ground-contacting position upon disconnection of said subassemblies.
Claim 3
Dependent Claim
31 words
A motorcycle as claimed in claim 1 wherein the rear subassembly includes a seat, said motorcycle having a wheelbase of about 1 meter and a seat height of about 0.7 meter.
Claim 4
Dependent Claim
33 words
A motorcycle as claimed in claim 1 wherein said support stand constitutes a pivotal support for the subassemblies and serves as a fulcrum for tilting movement when the subassemblies are connected and disconnected.
Claim 5
Dependent Claim
32 words
A motorcycle as claimed in claim 1 further comprising throttle control means for said engine on the front subassembly, and separable connection means for coupling the engine and the throttle control means.
Claim 6
Dependent Claim
36 words
A motorcycle as claimed in claim 4 further comprising a headlamp on the front subassembly, a power source for said headlamp on the rear subassembly, and separable connection means for coupling the headlamp and power source.
Claim 7
Dependent Claim
41 words
A motorcycle as claimed in claim 1 wherein said front subassembly comprises a front fork carrying said front wheel, a pair of spaced flanges on said front fork and means for clamping a portion of the rear subassembly between the flanges.
Claim 8
Dependent Claim
81 words
A motorcycle as claimed in claim 6 wherein the means for detachably connecting the subassemblies further comprises a threaded rod on said rear subassembly, a first positioning member fitted on said rod for being non-rotatably coupled to one of the flanges, a second positioning member threaded on said rod and engageable with the other flange, a steering stem clampable between said flanges by rotating said rod, and a head pipe rotatably supported on said stem and fixed to said rear subassembly.
Claim 9
Dependent Claim
31 words
A motorcycle as claimed in claim 7 wherein said flanges have openings with guide grooves leading externally of the flanges, said rod being insertable into said openings through said guide grooves.
Claim 10
Dependent Claim
57 words
A motorcycle as claimed in claim 8 wherein said opening in each flange is comparatively large in diameter and the guide groove is comparatively small in width, each positioning member being comparatively large in diameter and mountable in the corresponding opening, said rod being comparatively small in diameter so as to be insertable through each guide groove.
Claim 11
Dependent Claim
48 words
A motorcycle as claimed in claim 8 wherein the second positioning member is fixed to the upper end of said rod, said first positioning member and the flange facing the first positioning member respectively including a pin and a pin opening receiving the pin to prevent relative rotation.
Claim 12
Dependent Claim
17 words
A motorcycle as claimed in claim 8 comprising an integral knob connected to said second positioning member.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |