US4335800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle with at least three wheels pivoting about a vertical axis
Assignee: Individual
•
Filing: 1979-04-16
•
Granted: 1982-06-22
•
Expires: 1999-04-16
Abstract
Abstract A vehicle with unlimited mobility in all directions in the driving plane, in which the wheels are provided with a pivot drive which is set on the basis of values determined by a computer. The calculation is effected according to an algorithm, whose basis results from the geometric relations of triangles whose corner points are formed by the respective pivot axis of the wheel, the vehicle center M, and the center Dn, D'n of the instantaneous track curve.
Inventors
- 👤 Laszlo Arato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/06; B62D7/14; B62D7/15; B62D7/1509
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
A steering system for a vehicle having a guide wheel and at least two other wheels, the system comprising: means for pivotally mounting each of said wheels about a vertical axis; means for pivoting each of said wheels to a determinable angle; means for setting the angular position of the guide wheel; means for determining an angular position for each of said other wheels as a function of the angular position of the guide wheel, the determinable angle being obtained from geometric relationships of triangles defined by a fixed point on the vehicle, the center of an instantaneous track curve for the vehicle and respective pivot axes of each of the wheels of the vehicle; and means for adjusting the angular pivoting of each of said other wheels in accordance with said determinable angle.
Claim 2
Dependent Claim
134 words
A steering system for a vehicle having a guide wheel and at least two other wheels, the system comprising: means for pivotally mounting each of said wheels about a vertical axis; means for pivoting each of said wheels to a determinable angle; means for setting the angular position of the guide wheel; means for determining an angular position for each of said other wheels as a function of the angular position of the guide wheel, the determinable angle being obtained from geometric relationships of triangles defined by a fixed point on the vehicle, the center of an instantaneous track curve for the vehicle and respective pivot axes of each of the wheels of the vehicle; and means for adjusting the angular pivoting of each of said other wheels in accordance with said determinable angle.
Claim 3
Dependent Claim
32 words
A steering system as in claim 1 further comprising means cooperating with said guide wheel for producing data corresponding to its angular position and for transmitting said data to said determining means.
Claim 4
Dependent Claim
56 words
The system of claim 2 in which said determining means comprises: means for calculating a first correction angle as a function of both said guide wheel angular position and said determinable angle for the guide wheel; and means for calculating a correction angle for each of other wheels as a function of said first correction angle.
Claim 5
Dependent Claim
40 words
A steering system as in claim 1 further comprising means cooperating with each of said other wheels for producing data corresponding to the angular position of each of said other wheels and for transmitting said data to said determining means.
Claim 6
Dependent Claim
18 words
A steering system as in claim 1 wherein the fixed point on the vehicle is the vehicle center.
Claim 7
Dependent Claim
19 words
A steering system as in claim 1 further comprising a hub wheel drive means for each of said wheels.
References Cited (Backward Citations)
US3092201A
Cited
US3387684A
Cited
US3532178A
Cited
US3572458A
Cited
US3666034A
Cited
US3903983A
Cited
US3933215A
Cited
US3972379A
Cited
US4008783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |