Patent US3828532A successfully refreshed from Google Patents.
US3828532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Harvesting machine suspension system
Assignee: Deere and Co
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Filing: 1973-11-15
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Granted: 1974-08-13
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Expires: 1993-11-15
Abstract
Abstract A pull-type mower-conditioner has an L-shaped frame including a transverse beam and a pair of transversely spaced frame members extending upwardly and rearwardly from the beam adjacent the opposite ends of the beam. A harvesting header is disposed generally above and forwardly of the beam and is mounted on the main frame for vertical adjustment by means of a parallel linktype suspension system. A U-shaped support member has its central portion rotatably supported on the beam and a pair of rearwardly extending arms respectively journaling ground-engaging wheels adjacent the opposite ends of the beam. A remotely actuated hydraulic cylinder extends between a wheel arm and the top of the upright frame member at the left side of the machine and is actuatable to swing the support member and thereby raise and lower the main frame. A pair of telescoping members extend between the other wheel arm and the top of the other upright frame member and are selectively lockable together to lock the main frame in a raised position.
Inventors
- 👤 J Fickle
- 👤 R Gerhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:32
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/10; A01D43/107
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
227 words
In a pull-type harvesting machine having an L-shaped main frame including a generally fore-and-aft portion at one side of the machine, a transverse beam connected to and extending laterally from the rearward end of the fore-and-aft portion, and a pair of transversely spaced upright frame members respectively rigidly attached to and extending upwardly from the beam adjacent the opposite ends of the beam, and a harvesting header vertically adjustably suspended from the main frame generally forwardly of the transverse beam and alongside the fore-and-aft frame portion by a suspension mechanism, the combination therewith of an improved ground-engaging support system for supporting the main frame above the ground and comprising: a U-shaped suppOrt member including a transverse horizontal bight portion and a pair of wheel arms attached to and extending generally rearwardly from the opposite ends of the bight portion; bearing means rotatably mounting the bight portion on the transverse beam for rotation of the support member about a transverse axis; a pair of axially transverse ground-engaging wheels respectively journaled on the wheel arms rearwardly of the support member axis; and a single hydraulic cylinder means having one end operatively connected to one wheel arm and the other end operatively connected to the upper end of the adjacent upright member for swinging the support member relative to the main frame in response to actuation of the cylinder means.
Claim 2
Dependent Claim
227 words
In a pull-type harvesting machine having an L-shaped main frame including a generally fore-and-aft portion at one side of the machine, a transverse beam connected to and extending laterally from the rearward end of the fore-and-aft portion, and a pair of transversely spaced upright frame members respectively rigidly attached to and extending upwardly from the beam adjacent the opposite ends of the beam, and a harvesting header vertically adjustably suspended from the main frame generally forwardly of the transverse beam and alongside the fore-and-aft frame portion by a suspension mechanism, the combination therewith of an improved ground-engaging support system for supporting the main frame above the ground and comprising: a U-shaped suppOrt member including a transverse horizontal bight portion and a pair of wheel arms attached to and extending generally rearwardly from the opposite ends of the bight portion; bearing means rotatably mounting the bight portion on the transverse beam for rotation of the support member about a transverse axis; a pair of axially transverse ground-engaging wheels respectively journaled on the wheel arms rearwardly of the support member axis; and a single hydraulic cylinder means having one end operatively connected to one wheel arm and the other end operatively connected to the upper end of the adjacent upright member for swinging the support member relative to the main frame in response to actuation of the cylinder means.
Claim 3
Dependent Claim
66 words
The invention defined in claim 1 and including a locking means having one end connected to the other wheel arm and the other end connected to the upper end of the other upright member for selectively locking the wheel arm relative to the main frame and including first and second telescoping members and pin means selectively operative between the telescoping members to lock the members together.
Claim 4
Dependent Claim
58 words
The invention defined in claim 2 wherein the suspension mechanism includes a pair of upper links respectively connected to the upper end of the upright frame members by a pair of transverse pivot means, and the upper ends of the cylinder means and the locking means are respectively pivotally connected to the frame members by said pivot means.
Claim 5
Dependent Claim
40 words
The invention defined in claim 3 wherein the wheels are journaled on the wheel arms by means of transverse axles, and the lower end of the cylinder means is connected to the wheel arm by means of a wheel axle.
Claim 6
Dependent Claim
45 words
The invention defined in claim 4 wherein the support member is formed from a single tubular member, and the bearing means includes a pair of U-shaped brackets having opposite legs secured to the beam and rotatably supporting the tubular bight portion between the opposite legs.
Claim 7
Dependent Claim
58 words
The invention defined in claim 1 wherein the suspension mechanism includes a pair of upper links respectively connected to the upper end of the upright frame members by a pair of transverse pivot means, and the upper ends of the cylinder means and the locking means are respectively pivotally connected to the frame members by said pivot means.
Claim 8
Dependent Claim
40 words
The invention defined in claim 1 wherein the wheels are journaled on the wheel arms by means of transverse axles, and the lower end of the cylinder means is connected to the wheel arm by means of a wheel axle.
Claim 9
Dependent Claim
45 words
The invention defined in claim 1 wherein the support member is formed from a single tubular member, and the bearing means includes a pair of U-shaped brackets having opposite legs secured to the beam and rotatably supporting the tubular bight portion between the opposite legs.
References Cited (Backward Citations)
US3599405A
Cited
US3797207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |