Patent US3670913A successfully refreshed from Google Patents.
US3670913A
Expired / Lapsed
US
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Bin unloader break back system
Assignee: Deutz Allis Corp
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Filing: 1971-04-19
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Granted: 1972-06-20
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Expires: 1991-04-19
Abstract
Abstract This disclosure is concerned with providing an improved swingable unloading auger conveyer for a combine harvester in that it provides assistance in swinging the auger conveyer from a transport to the unloading position; it provides an automatic means of aligning the driving elements of the auger so that they become properly indexed during the previously mentioned positioning operation; and it provides a safety release in case the unloading conveyer when in unloading position hits some obstruction this safety release being in the nature of a break back brace member having a frictional engagement and with the aforementioned swinging assist functioning as an energy absorbing element during the break back.
Inventors
- 👤 Robert S Reaves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:09
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/1208; A01D41/1217; A01F; A01F12/00; A01F12/46
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
197 words
In a combine harvester having an operator''s platform, a grain bin and a horizontally extending unloading conveyer positioned within the bottom portion of said bin between the sidewalls thereof, a conveyer extension attached to said unloading conveyer and extending upwardly from one of said sidewalls, a discharge conveyer pivotally mounted on the discharge end of said conveyer extension, said discharge conveyer being pivotable to a transport position alongside said harvester or pivotable to an operative position forming a continuation of said conveyer extension, biasing means for returning said discharge conveyer to operative position, a brace member carried by said harvester for supporting said discharge conveyor, said brace member being pivotally connected at one end to said harvester for movement about the same axis as said discharge conveyer pivots, a second brace member carried by said harvester for supporting said discharge conveyor, breakaway latch means interposed between said second brace member and said harvester and adapted to break when a rearwardly directed force is applied to said discharge conveyer of a sufficient magnitude, said biasing means being adapted to absorb the energy of said rearwardly directed force to eliminate destructive contact between said discharge conveyor and said harvester.
Claim 2
Dependent Claim
197 words
In a combine harvester having an operator''s platform, a grain bin and a horizontally extending unloading conveyer positioned within the bottom portion of said bin between the sidewalls thereof, a conveyer extension attached to said unloading conveyer and extending upwardly from one of said sidewalls, a discharge conveyer pivotally mounted on the discharge end of said conveyer extension, said discharge conveyer being pivotable to a transport position alongside said harvester or pivotable to an operative position forming a continuation of said conveyer extension, biasing means for returning said discharge conveyer to operative position, a brace member carried by said harvester for supporting said discharge conveyor, said brace member being pivotally connected at one end to said harvester for movement about the same axis as said discharge conveyer pivots, a second brace member carried by said harvester for supporting said discharge conveyor, breakaway latch means interposed between said second brace member and said harvester and adapted to break when a rearwardly directed force is applied to said discharge conveyer of a sufficient magnitude, said biasing means being adapted to absorb the energy of said rearwardly directed force to eliminate destructive contact between said discharge conveyor and said harvester.
Claim 3
Dependent Claim
41 words
In a combine harvester as recited in claim 1 and wherein said biasing means comprises a pair of torsional springs mounted about the pivot axis of said discharge conveyer for resisting pivotal movement of said discharge conveyer in a rearward direction.
Claim 4
Dependent Claim
20 words
In a combine harvester as recited in claim 2 and wherein said torsional springs are constructed having a square cross-section.
Claim 5
Dependent Claim
20 words
In a combine harvester as recited in claim 2 and wherein said torsional springs are constructed having a rectangular cross-section.
Claim 6
Dependent Claim
30 words
In a combine harvester as recited in claim 1 and wherein means are provided for one man to move said discharge conveyer from said transport position to said operative position.
Claim 7
Dependent Claim
43 words
In a combine harvester as recited in claim 5 and wherein said means comprises said torsion springs for moving said discharge conveyer halfway to said operative position and the use of said second brace for moving said discharge conveyer to said operative position.
Claim 8
Dependent Claim
23 words
In a combine harvester as recited in claim 1 and wherein said breakaway latch means is adjustable to break under any preselected force.
Claim 9
Dependent Claim
33 words
In a combine harvester as recited in claim 1 and wherein said breakaway latch means is readily adjustable as to length to provide ease of attachment of said latch means to said combine.
Claim 10
Dependent Claim
66 words
In a combine harvester as recited in claim 1 and wherein said extension conveyor is provided with a central shaft having a socket member attached to the discharge end thereof and said discharge conveyer is provided with a shaft having a centered shaft including a pilot assembly receivable in said socket for providing a driving connection therebetween whenever said discharge conveyer is pivoted to operative position.
Claim 11
Dependent Claim
32 words
In a combine harvester as recited in claim 9 and wherein said socket is so configured as to receive said pilot assembly regardless of the out of center position of said socket.
References Cited (Backward Citations)
US2981400A
Cited
US3390515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |