US4449726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for follow-up steering axles
Assignee: Daimler Benz AG
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Filing: 1983-05-04
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Granted: 1984-05-22
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Expires: 2003-05-04
Abstract
Abstract A control arrangement for a follow-up steering axle in single- or multiple-unit vehicles with at least three axles. The follow-up steering axle may be stabilized in dependence upon a load of the vehicle in a direction toward a straight-ahead driving position and may be blocked in the straight-ahead driving position. A speed-dependent stabilization is provided for the follow-up steering axle in a direction toward its straight-ahead driving position.
Inventors
- 👤 Paul Strifler
- 👤 Heinrich Geissler
- 👤 Dieter Ludtke
- 👤 Rudolf Maurath
- 👤 Rudolf Steinecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:08
CPC Classifications
B; B62; B62D; B62D13/00; B62D7/00; B62D7/06; B62D7/14; B62D7/142; B62D7/144
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
A control arrangement for a follow-up steering axle of a motor vehicle, wherein means are provided for stabilizing the follow-up steering axle in a direction of a straight-ahead driving position in dependence upon a speed and a load of the motor vehicle, the motor vehicle is at least a single-unit motor vehicle including at least three axles, and characterized in that said means are capable of locking the follow-up steering axle in the straight-ahead driving position.
Claim 2
Dependent Claim
76 words
A control arrangement for a follow-up steering axle of a motor vehicle, wherein means are provided for stabilizing the follow-up steering axle in a direction of a straight-ahead driving position in dependence upon a speed and a load of the motor vehicle, the motor vehicle is at least a single-unit motor vehicle including at least three axles, and characterized in that said means are capable of locking the follow-up steering axle in the straight-ahead driving position.
Claim 3
Dependent Claim
22 words
A control arrangement according to claim 1, characterized in that the motor vehicle is a multiple-unit vehicle including at least three axles.
Claim 4
Dependent Claim
27 words
A control arrangement according to claim 1, characterized in that the speed-dependent stabilization of the follow-up steering axle may be additionally applied in at least one stage.
Claim 5
Dependent Claim
30 words
A control arrangement according to claim 1, characterized in that the follow-up steering axle is automatically locked in a straight-ahead driving position upon the vehicle exceeding a predetermined speed limit.
Claim 6
Dependent Claim
31 words
A control arrangement according to claim 1, characterized in that the follow-up steering axle may be locked merely in the straight-ahead driving position in dependence upon the speed of the vehicle.
Claim 7
Dependent Claim
96 words
A control arrangement according to claim 1, characterized in that the follow-up steering axle includes means for mounting at least one wheel on a respective side of the axle, and means for connecting the mounting means of the respective wheels to one another so as to be pivotable in unison about a vertically extending axis, and in that the means for stabilizing the follow-up steering axle in dependence upon the speed of the motor vehicle includes a pneumatic cylinder means adapted to act upon the connecting means for providing a supporting action on the connecting means.
Claim 8
Dependent Claim
98 words
A control arrangement according to claim 6, characterized in that the mounting means includes a steering knuckle arranged at respective sides of the follow-up steering axle, the connecting means includes a bell crank means pivotally mounted to the follow-up steering axle, and tie rod means for connecting the respective steering knuckles to the bell crank means, and in that the means for stabilizing the follow-up axle in dependence upon the speed of the motor vehicle further includes a means for increasing a pressure supplied to the pneumatic cylinder means in dependence upon a speed of the motor vehicle.
Claim 9
Dependent Claim
57 words
A control arrangement according to claim 7, characterized in that the pneumatic cylinder means further includes a guide track having a curve which is opposed to a pivoting path of the bell crank, and in that a sliding roller means is provided on the axle body, said sliding roller being adapted to cooperate with the guide track.
Claim 10
Dependent Claim
37 words
A control arrangement according to claim 8, characterized in that the means for increasing a pressure supplied to the pneumatic cylinder means includes a pressure-modulating device interposed between the pneumatic cylinder means and a pressure supply means.
References Cited (Backward Citations)
US3403925A
Cited
US3583515A
Cited
US3656776A
Cited
US3825281A
Cited
FR2351841A1
Cited
US4162082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |