US3768585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steering axle
Assignee: Yale Materials Handling Corp
•
Filing: 1971-08-17
•
Granted: 1973-10-30
•
Expires: 1991-08-17
Abstract
Abstract A steering axle for use in a vehicle, such as an industrial truck or the like, comprises a frame portion, spindle portions pivotably mounted with respect to a frame portion, and a doubleacting hydraulic cylinder mounted transversely on said frame portion for both rotational and translational movement relative thereto. The piston rod of the hydraulic cylinder is connected at each distal end to one of the steering arms whereby the application of hydraulic fluid pressure in either direction will cause translational and rotational movement of said piston rod and cylinder to thereby provide differential steering of the vehicle.
Inventors
- 👤 N Matteo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
B; B62; B62D; B62D7/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
In a steering axle for a vehicle, said steering axle having a main frame, a pair of rotatable ground engaging wheels steerably mounted at opposite ends of said frame, a steering arm associated with each of said wheels for steering said wheels upon movement thereof, a tie-rod assembly extending between said steering arms, each end of said tie-rod assembly being pivotally connected to one of said steering arms to transmit motion therebetween, said tie-rod assembly having a piston integrally attached thereto intermediate the ends thereof, and a double acting hydraulic cylinder enclosing said piston whereby said tie-rod will move upon pressurization of said hydraulic cylinder; the improvement comprising guide means mounting said hydraulic cylinder to said main frame for linear movement perpendicular to a line connecting the steering axes of said grounD engaging wheels and for rotation about a substantially vertical axis, said guide means comprising at least one slot in said main frame and a bearing member rotatably mounted on said hydraulic cylinder engaging an edge of said slot for guiding movement of said hydraulic cylinder and tie-rod relative to said frame.
Claim 2
Dependent Claim
183 words
In a steering axle for a vehicle, said steering axle having a main frame, a pair of rotatable ground engaging wheels steerably mounted at opposite ends of said frame, a steering arm associated with each of said wheels for steering said wheels upon movement thereof, a tie-rod assembly extending between said steering arms, each end of said tie-rod assembly being pivotally connected to one of said steering arms to transmit motion therebetween, said tie-rod assembly having a piston integrally attached thereto intermediate the ends thereof, and a double acting hydraulic cylinder enclosing said piston whereby said tie-rod will move upon pressurization of said hydraulic cylinder; the improvement comprising guide means mounting said hydraulic cylinder to said main frame for linear movement perpendicular to a line connecting the steering axes of said grounD engaging wheels and for rotation about a substantially vertical axis, said guide means comprising at least one slot in said main frame and a bearing member rotatably mounted on said hydraulic cylinder engaging an edge of said slot for guiding movement of said hydraulic cylinder and tie-rod relative to said frame.
Claim 3
Dependent Claim
165 words
In a steering axle for a vehicle, said steering axle having a main frame, a pair of rotatable ground engaging wheels steerably mounted at opposite ends of said frame, a steering arm associated with each of said wheels for steering said wheels upon movement thereof, a tie-rod assembly extending between said steering arms, each end of said tie-rod assembly being pivotally connected to one of said steering arms to transmit motion therebetween, said tie-rod assembly having a piston integrally attached thereto intermediate the ends thereof, and a double acting hydraulic cylinder enclosing said piston whereby said tie-rod will move upon pressurization of said hydraulic cylinder; the improvement in which said main frame comprises a pair of spaced frame members, said hydraulic cylinder being disposed between said spaced frame members, and guide means on said spaced frame members mounting said hydraulic cylinder for linear movement perpendicular to a line connecting the steering axes of said ground engaging wheels and for rotation about a substantially vertical axis.
Claim 4
Dependent Claim
165 words
In a steering axle for a vehicle, said steering axle having a main frame, a pair of rotatable ground engaging wheels steerably mounted at opposite ends of said frame, a steering arm associated with each of said wheels for steering said wheels upon movement thereof, a tie-rod assembly extending between said steering arms, each end of said tie-rod assembly being pivotally connected to one of said steering arms to transmit motion therebetween, said tie-rod assembly having a piston integrally attached thereto intermediate the ends thereof, and a double acting hydraulic cylinder enclosing said piston whereby said tie-rod will move upon pressurization of said hydraulic cylinder; the improvement in which said main frame comprises a pair of spaced frame members, said hydraulic cylinder being disposed between said spaced frame members, and guide means on said spaced frame members mounting said hydraulic cylinder for linear movement perpendicular to a line connecting the steering axes of said ground engaging wheels and for rotation about a substantially vertical axis.
Claim 5
Dependent Claim
61 words
The invention of claim 2, wherein said means mounting said hydraulic cylinder comprises aligned, spaced slots formed in said frame members, and a trunnion mounting member attached to said cylinder, said trunnion mounting member including bearing members received in said slots and engageable with the edges of said slots for guiding movement of said cylinder and tie-rod relative to said frame.
Claim 6
Dependent Claim
28 words
The invention of claim 2, including a trunnion member extending from said main frame for mounting said steering axle to said vehicle for rotation about a horizontal axis.
References Cited (Backward Citations)
DE127923C
Cited
US759090A
Cited
US2152021A
Cited
GB671236A
Cited
US2835507A
Cited
DE1030199B
Cited
GB870374A
Cited
US3059944A
Cited
US3480100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |