Patent US4910052A successfully refreshed from Google Patents.
Patent US4076269A successfully refreshed from Google Patents.
US4076269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing-drive-vehicle
Assignee: Shinpo Kogyo KK
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Filing: 1976-08-10
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Granted: 1978-02-28
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Expires: 1996-08-10
Abstract
Abstract A vehicle with a new propulsion mechanism is disclosed. This vehicle is driven by a rider making reciprocal lateral swings by means of one or more rods, each of which carries a ground-contacting propelling member (a wheel, a ski or a skate) through a pivotal joint and a carrier, such as a fork, for the propelling member. In most cases, the vehicle is constructed as a cycle. This cycle can be constructed as one which is used by a rider who cannot move his foot for the purpose of propelling the cycle. The locus of the ground-contact-point of the propelling member is a meandering one.
Inventors
- 👤 Yoshikata Muguruma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:19
CPC Classifications
B; B62; B62M; B62M1/00; B62M1/14; B62M1/16; B62K; B62K5/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
A swing drive vehicle comprising a frame member, at least one ground contacting member mounted on said frame member, two assemblies disposed symmetrically and laterally of said frame member, each assembly comprising a steering column means, a handle member secured to the top of the steering column means, a rod member secured to said steering column means and pivotally mounted at the other end to said frame member with respect thereto, a fork member mounted at the lower end of said steering column means, and a ground contacting element mounted on said fork member, whereby said assemblies may be moved synchronously in diverging and converging directions by said handle members with respect to said frame member so as to impart a motion to the vehicle.
Claim 2
Dependent Claim
125 words
A swing drive vehicle comprising a frame member, at least one ground contacting member mounted on said frame member, two assemblies disposed symmetrically and laterally of said frame member, each assembly comprising a steering column means, a handle member secured to the top of the steering column means, a rod member secured to said steering column means and pivotally mounted at the other end to said frame member with respect thereto, a fork member mounted at the lower end of said steering column means, and a ground contacting element mounted on said fork member, whereby said assemblies may be moved synchronously in diverging and converging directions by said handle members with respect to said frame member so as to impart a motion to the vehicle.
Claim 3
Dependent Claim
39 words
A swing drive vehicle as claimed in claim 1 wherein said handle member includes a portion extending forwardly of said steering column means and a rearwardly extending portion to facilitate the synchronous divergent and convergent movement of said assemblies.
Claim 4
Dependent Claim
37 words
A swing drive vehicle as claimed in claim 2 and further comprising means extending between and secured to the forward ends of the forwardly extending portions of said handle members for limiting divergent movement of said assemblies.
Claim 5
Dependent Claim
32 words
A swing drive vehicle as claimed in claim 1, and further comprising means secured at opposed ends thereof to the rod member of each assembly to provide synchronous movement of each assembly.
Claim 6
Dependent Claim
47 words
A swing drive vehicle as claimed in claim 1, and further comprising a resilient means between each fork member and its associated rod member to bias the direction of the ground contacting element associated with said fork member to conform with the direction of said rod 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) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |