Patent US3790230A successfully refreshed from Google Patents.
US3790230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All-terrain vehicle
Assignee: Cushman Inc
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Filing: 1970-11-27
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Granted: 1974-02-05
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Expires: 1990-11-27
Abstract
Abstract Disclosed herein is an all-terrain vehicle including a track suspension system affording both transverse and lateral resiliently flexible support to an endless track and a releasably locked and pivotally mounted rear bogie wheel assembly which, when pivoted from its normal operating position, affords assembly of or removal of the endless track relative to the sprocket and bogie wheels.
Inventors
- 👤 H Jespersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:14
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/10; B62D55/104; B62D55/108; B62D55/1083; B62D55/18; B62D55/26; B62D55/27
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
338 words
A track suspension comprising a support having, on each side thereof, an intermediate portion, front inner and outer bogie wheels, means separately mounting each of said front inner and outer bogie wheels from said support forwardly of said intermediate portion in adjacently spaced relation to each other transversely of the direction of intendeD travel for resilient pivotal movement about an axis transverse to the direction of intended travel and spaced from the center of said front inner and outer bogie wheels, second inner and outer bogie wheels, third inner and outer bogie wheels, means including a common member extending from said intermediate support portion for mounting said second and thrid inner bogie wheels in spaced relation to each other in the direction of intended travel and for independent vertical movement, means including another common member extending from said intermediate support portion for mounting said second and third outer bogie wheels in spaced relation to each other in the direction of intended travel and with said second and third outer bogie wheels being respectively located in adjacently spaced relation to said second and third inner bogie wheels transversely of the direction of intended travel and for independent vertical movement of said second and third outer bogie wheels relative to each other and to said second and third inner bogie wheels, fourth inner and outer bogie wheels, fifth inner and outer bogie wheels, and means mounting said fourth and fifth inner and outer bogie wheels from said support rearwardly of said intermediate portion with said fourth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel and with said fifth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel and for common pivotal movement of said outer fourth and fifth bogie wheels and common pivotal movement of said inner fourth and fifth bogie wheels independently of said outer fourth and fifth bogie wheels and about an axis spaced from said support.
Claim 2
Dependent Claim
338 words
A track suspension comprising a support having, on each side thereof, an intermediate portion, front inner and outer bogie wheels, means separately mounting each of said front inner and outer bogie wheels from said support forwardly of said intermediate portion in adjacently spaced relation to each other transversely of the direction of intendeD travel for resilient pivotal movement about an axis transverse to the direction of intended travel and spaced from the center of said front inner and outer bogie wheels, second inner and outer bogie wheels, third inner and outer bogie wheels, means including a common member extending from said intermediate support portion for mounting said second and thrid inner bogie wheels in spaced relation to each other in the direction of intended travel and for independent vertical movement, means including another common member extending from said intermediate support portion for mounting said second and third outer bogie wheels in spaced relation to each other in the direction of intended travel and with said second and third outer bogie wheels being respectively located in adjacently spaced relation to said second and third inner bogie wheels transversely of the direction of intended travel and for independent vertical movement of said second and third outer bogie wheels relative to each other and to said second and third inner bogie wheels, fourth inner and outer bogie wheels, fifth inner and outer bogie wheels, and means mounting said fourth and fifth inner and outer bogie wheels from said support rearwardly of said intermediate portion with said fourth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel and with said fifth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel and for common pivotal movement of said outer fourth and fifth bogie wheels and common pivotal movement of said inner fourth and fifth bogie wheels independently of said outer fourth and fifth bogie wheels and about an axis spaced from said support.
Claim 3
Dependent Claim
301 words
A track suspension comprising a support, inner and outer front bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means separately connecting each of said inner and outer front bogie wheels to said support for limited resilient pivotal movement about an axis transverse to the direction of intended travel and spaced from the center of said inner and outer front bogie wheels, second inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, third inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means including an outer leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at opposite ends to said second and third outer bogie wheels and an inner leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at the opposite ends thereof to said second and third inner bogie wheels for affording independent vertical movement of each of said second and third outer and inner bogie wheels, fourth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, fifth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, an outer rocker bar connected to said outer fourth and fifth bogie wheels, an inner rocker bar connected to said inner fourth and fifth bogie wheels, and means connecting said inner and outer rocker bars to said support for independent pivotal rocker bar movement about an axis spaced from said support and between said fourth and fifth bogie wheels and for adjustable positioning of said fourth and fifth bogie wheels along the direction of intended travel.
Claim 4
Dependent Claim
301 words
A track suspension comprising a support, inner and outer front bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means separately connecting each of said inner and outer front bogie wheels to said support for limited resilient pivotal movement about an axis transverse to the direction of intended travel and spaced from the center of said inner and outer front bogie wheels, second inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, third inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means including an outer leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at opposite ends to said second and third outer bogie wheels and an inner leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at the opposite ends thereof to said second and third inner bogie wheels for affording independent vertical movement of each of said second and third outer and inner bogie wheels, fourth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, fifth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, an outer rocker bar connected to said outer fourth and fifth bogie wheels, an inner rocker bar connected to said inner fourth and fifth bogie wheels, and means connecting said inner and outer rocker bars to said support for independent pivotal rocker bar movement about an axis spaced from said support and between said fourth and fifth bogie wheels and for adjustable positioning of said fourth and fifth bogie wheels along the direction of intended travel.
Claim 5
Dependent Claim
57 words
A track suspension in accordance with claim 2 wherein said means pivotally connecting said inner and outer rocker bars to said support includes an arm connected to said support for pivotal movement relative thereto and accompanying movement of said rocker bars and said fourth and fifth bogie wheels, and releasable means retaining said arm against pivotAl movement.
Claim 6
Dependent Claim
36 words
A track suspension in accordance with claim 2 wherein said means connecting said inner and outer rocker bars to said support includes an elastomeric mount resiliently restraining pivotal movement between said support and said rocker bars.
Claim 7
Dependent Claim
121 words
A track suspension system including a frame, an arm including a first end portion connected to said frame for pivotal movement thereof relative to said frame and a second portion adjustable relative to said first portion to vary the length of said arm, means releasably restraining pivotal movement of said arm relative to said frame, inner and outer rocker bars adjacently spaced relative to each other transversely of the direction of intended travel, aligned pivot means connecting said rocker bars to said arm, and first and second inner bogie wheels connected to said inner bar on opposite sides of said pivot means and first and second outer bogie wheels connected to said outer bar on opposite sides of said pivot means.
Claim 8
Dependent Claim
121 words
A track suspension system including a frame, an arm including a first end portion connected to said frame for pivotal movement thereof relative to said frame and a second portion adjustable relative to said first portion to vary the length of said arm, means releasably restraining pivotal movement of said arm relative to said frame, inner and outer rocker bars adjacently spaced relative to each other transversely of the direction of intended travel, aligned pivot means connecting said rocker bars to said arm, and first and second inner bogie wheels connected to said inner bar on opposite sides of said pivot means and first and second outer bogie wheels connected to said outer bar on opposite sides of said pivot means.
Claim 9
Dependent Claim
268 words
A track suspension comprising a support, inner and outer front bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means connecting each of said inner and outer front bogie wheels to said support for pivotal movement about an axis transverse to the direction of intended travel, second inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, third inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means including an outer leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at opposite ends to said second and third outer bogie wheels and an inner leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at the opposite ends thereof to said second and third inner bogie wheels for affording independent vertical movement of each of said second and third outer and inner bogie wheels, fourth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, fifth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, an outer rocker bar connected to said outer fourth and fifth bogie wheels, an inner rocker bar connected to said inner fourth and fifth bogie wheels, and means connecting said inner and outer rocker bars to said support for independent pivotal rocker bar movement about an axis spaced from said support and between said fourth and fifth bogie wheels.
Claim 10
Dependent Claim
268 words
A track suspension comprising a support, inner and outer front bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means connecting each of said inner and outer front bogie wheels to said support for pivotal movement about an axis transverse to the direction of intended travel, second inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, third inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, means including an outer leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at opposite ends to said second and third outer bogie wheels and an inner leaf spring pivotally connected intermediate the ends thereof to said support and respectively connected at the opposite ends thereof to said second and third inner bogie wheels for affording independent vertical movement of each of said second and third outer and inner bogie wheels, fourth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, fifth inner and outer bogie wheels in adjacently spaced relation to each other transversely of the direction of intended travel, an outer rocker bar connected to said outer fourth and fifth bogie wheels, an inner rocker bar connected to said inner fourth and fifth bogie wheels, and means connecting said inner and outer rocker bars to said support for independent pivotal rocker bar movement about an axis spaced from said support and between said fourth and fifth bogie wheels.
Claim 11
Dependent Claim
28 words
A track suspension in accordance with claim 6 and further including means for adjustable positioning of said fourth and fifth bogie wheels along the direction of intended travel.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |