Patent US3650333A successfully refreshed from Google Patents.
US3650333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge mechanism for folding disk harrow gangs
Assignee: Case LLC
•
Filing: 1970-09-14
•
Granted: 1972-03-21
•
Expires: 1990-09-14
Abstract
Abstract Mechanism for folding the extension wings of a disk harrow utilizing a hydraulic cylinder connected to each wing section, wherein the connection between the cylinder and each of the wings provides maximum leverage throughout the extension and retraction strokes of the cylinder to swing the wing section between its operating position and its folded inoperative position.
Inventors
- 👤 Jerome L Fueslein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:57
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/02; A01B73/04; A01B73/044
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
258 words
In an implement having a central section and a folding wing section, hinge means pivotally connecting said sections, and means for swinging the wing section about the axis of said hinge means between operating and folded inoperative positions of the wing section comprising, power transmission means supported by said central section and having extension and retraction strokes, arm means mounted on said wing section having a pair of arcuate slots formed therein, spaced pin means carried by said power transmission means and slidably receivable in the respective of said slots, each of said pin means being pivotally disposed in one end of its associated slot in one of said positions of the wing section, said slots being so arranged that one of said pin means is effective by engaging an end of its slot and the other of said pin means is ineffective by sliding in its slot to transmit the power of said power transmission means to said arm means during a first portion of one of the strokes of said power transmission means to swing said wing section about the axis of said hinge means in one direction, said other of said pin means being effective by engaging an end of its slot and said one of said pin means being ineffective by sliding in its slot to transmit the power of said power transmission means to said arm means during the remainder of said one of the strokes of said power transmission means to swing the wing section to the other of said positions thereof.
Claim 2
Dependent Claim
258 words
In an implement having a central section and a folding wing section, hinge means pivotally connecting said sections, and means for swinging the wing section about the axis of said hinge means between operating and folded inoperative positions of the wing section comprising, power transmission means supported by said central section and having extension and retraction strokes, arm means mounted on said wing section having a pair of arcuate slots formed therein, spaced pin means carried by said power transmission means and slidably receivable in the respective of said slots, each of said pin means being pivotally disposed in one end of its associated slot in one of said positions of the wing section, said slots being so arranged that one of said pin means is effective by engaging an end of its slot and the other of said pin means is ineffective by sliding in its slot to transmit the power of said power transmission means to said arm means during a first portion of one of the strokes of said power transmission means to swing said wing section about the axis of said hinge means in one direction, said other of said pin means being effective by engaging an end of its slot and said one of said pin means being ineffective by sliding in its slot to transmit the power of said power transmission means to said arm means during the remainder of said one of the strokes of said power transmission means to swing the wing section to the other of said positions thereof.
Claim 3
Dependent Claim
144 words
The invention set forth in claim 1, wherein said one of said pin means is disposed at one end of its slot in thrust transmitting relation to said arm means during said first portion of said one of said strokes of said power transmission means while the other of said pin means is slidable to the other end of its slot in response to the rotation of the wing section about the axis of said hinge means, said other of said pin means being disposed at said other end of its slot in thrust transmitting relation to said arm means during the remainder of said stroke of the power transmission means while said one of said pin means is slidable to the other end of its slot in response to the continued rotation of the wing section about the axis of said hinge means.
Claim 4
Dependent Claim
22 words
The invention set forth in claim 2, wherein the chords of the arcs defined by said slots are disposed in intersecting planes.
Claim 5
Dependent Claim
34 words
The invention set forth in claim 3, wherein said power transmission means is a hydraulic cylinder mounted on said central section and having a piston rod reciprocable therein operatively connected to said arm means.
Claim 6
Dependent Claim
56 words
The invention set forth in claim 4, wherein, in its operating position said wing section is in alignment with said central section and is swingable about the axis of said hinge means, in response to the retraction stroke of said cylinder, to the folded inoperative position of said wing section generally parallel to said central section.
Claim 7
Dependent Claim
39 words
The invention set forth in claim 5, wherein, during said first portion of said stroke said wing section is swung approximately 90* about the axis of said hinge means and an additional 90* during the remainder of said stroke.
Claim 8
Dependent Claim
66 words
The invention set forth in claim 6, wherein said power transmission means includes a thrust link connected at one end to said piston rod and at its other end to said arm means and a guide member is mounted on said central section to support and guide said link, said wing section being engageable with said guide member in the folded position of said wing section.
Claim 9
Dependent Claim
60 words
The invention set forth in claim 7, wherein said arm means comprises a lug affixed to said wing section having one of said slots formed therein, plate means being mounted on the wing section and having the other of said slots formed therein, said pin means being carried by said thrust link and receivable in the respective of said slots.
Claim 10
Dependent Claim
95 words
The invention set forth in claim 8, wherein one of said pin means is carried by said thrust link for recEption in the slot in said lug, said thrust link comprising a pair of elements diverging beyond said one of said pin means to provide a pair of ends, the other of said pin means comprising a pair of pins carried by said ends and said plate means comprising a pair of plate members mounted on said wing section on opposite sides of said lug and having registering slots therein to receive said other pins.
Claim 11
Dependent Claim
40 words
The invention set forth in claim 9, wherein a pair of brackets are affixed to the outer end of said central section and said hinge means comprises a hinge pin carried by said brackets and pivotally connected to said lug.
Claim 12
Dependent Claim
63 words
The invention set forth in claim 10, wherein the means for mounting said plate members on said wing section includes lost motion means accommodating limited rocking movement of said plate members relative to said lug, said plate members having latch means formed thereon cooperable with said brackets in the operating position of said wing section to lock the latter to said central section.
Claim 13
Dependent Claim
51 words
The invention set forth in claim 11, wherein the arrangement of said pins in said slots is such that, upon initiation of the retraction stroke of said cylinder to swing the wing section to its folded position said plate members are rocked relative to said lug to release said latch means.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |