US4238917A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mowing device
Assignee: Vicon NV
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Filing: 1979-11-13
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Granted: 1980-12-16
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Expires: 1999-11-13
Abstract
Abstract In order to prevent the adhesion of crop to a swath board of a mowing device, the or each swath former comprises an endless member passed around a foremost and a hindmost reversing element, viewed in the direction of movement, the crop advancing run of said member being at an acute angle to the carrier.
Inventors
- 👤 Pieter A. Oosterling
- 👤 Hendricus C. VAN Staveren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:41
CPC Classifications
A; A01; A01D; A01D57/00; A01D57/30; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/667; A01D34/668
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
214 words
A mowing device comprising, in combination: a horizontally elongate carrier and mounting means for attaching the carrier to a vehicle such that the carrier may be moved over the field in the direction of movement while extending transversely of the direction of such movement; cutting means carried by said carrier for cutting at least one crop swath having a width greater than the width of a desired windrow; and crop deflecting means connected to said carrier for conforming said one swath to the desired windrow width, said crop deflecting means comprising at least one endless flexible member, spaced guide means about which said endless member is trained, and drive means for driving said endless member, said guide means comprising first and second elements, the first element being disposed adjacent said carrier and being rotatable about a generally upright axis and the second element being disposed in trailing, laterally offset relation to said first element and being rotatable about an axis substantially parallel with said generally upright axis, the offset relation of said second element being such as to position a flight of said endless member at an acute angle with the longitudinal aix of said carrier, and the axes of said elements during operation being disposed in fixed relation with respect to each other.
Claim 2
Dependent Claim
214 words
A mowing device comprising, in combination: a horizontally elongate carrier and mounting means for attaching the carrier to a vehicle such that the carrier may be moved over the field in the direction of movement while extending transversely of the direction of such movement; cutting means carried by said carrier for cutting at least one crop swath having a width greater than the width of a desired windrow; and crop deflecting means connected to said carrier for conforming said one swath to the desired windrow width, said crop deflecting means comprising at least one endless flexible member, spaced guide means about which said endless member is trained, and drive means for driving said endless member, said guide means comprising first and second elements, the first element being disposed adjacent said carrier and being rotatable about a generally upright axis and the second element being disposed in trailing, laterally offset relation to said first element and being rotatable about an axis substantially parallel with said generally upright axis, the offset relation of said second element being such as to position a flight of said endless member at an acute angle with the longitudinal aix of said carrier, and the axes of said elements during operation being disposed in fixed relation with respect to each other.
Claim 3
Dependent Claim
23 words
A mowing device as defined in claim 1 wherein said elements include substantially cylindrical surface portions upon which said endless member is engaged.
Claim 4
Dependent Claim
14 words
A mowing device as defined in claim 1 wherein said acute angle is adjustable.
Claim 5
Dependent Claim
63 words
A mowing device as claimed in claim 3 wherein the second element is mounted for rotation on a subframe extending between the first and second element, said subframe being swingable with respect to said carrier about the axis of rotation of said first element between at least two different operation positions and being connectable to said carrier in said at least two positions.
Claim 6
Dependent Claim
21 words
A mowing device as claimed in claim 2, characterized in that the endless member is formed by a flexible, flat belt.
Claim 7
Dependent Claim
42 words
A mowing device as claimed in claim 5, characterized in that at least one of the elements is formed by a roller having one or more circumferential grooves, an elevation on the inner side of the flat belt fitting in each groove.
Claim 8
Dependent Claim
63 words
A mowing device as claimed in claim 2 wherein the second element is mounted for rotation on a subframe extending between the first and second element, said subframe being swingable with respect to said carrier about the axis of rotation of said first element between at least two different operation positions and being connectable to said carrier in said at least two positions.
Claim 9
Dependent Claim
22 words
A mowing device as claimed in claim 1, characterized in that the endless member is formed by more than one flexible belt.
Claim 10
Dependent Claim
24 words
A mowing device as claimed in claim 8, characterized in that the or each rope around the first element projects from the circumference thereof.
Claim 11
Dependent Claim
25 words
A mowing device as claimed in claim 9, characterized in that the or each rope around the second element is located inside the circumference thereof.
Claim 12
Dependent Claim
42 words
A mowing device as claimed in claim 8 characterized in that each belt is guided in a circumferential groove of the first and second elements, whilst from the supporting surface in the groove each belt has a cross-section narrowing towards the outside.
Claim 13
Dependent Claim
28 words
A mowing device as claimed in claim 8, characterized in that behind the advancing run of the endless member a fixed guide member is arranged between the elements.
Claim 14
Dependent Claim
29 words
A mowing device as claimed in claim 1, characterized in that the second element is journalled on a standing shaft supported by an auxiliary frame pivoted to the carrier.
Claim 15
Dependent Claim
24 words
A mowing device as claimed in claim 1, characterized in that at least one of the elements is supported by an eccentrically displaceable bearing.
Claim 16
Dependent Claim
19 words
A mowing device as claimed in claim 1, characterized in that the endless member is provided with crop catches.
Claim 17
Dependent Claim
25 words
A mowing device as claimed in claim 1, characterized by swath formers arranged pairwise and formed by endless members passed around first and second elements.
Claim 18
Dependent Claim
34 words
A mowing device as defined in claim 5 wherein both elements are in the form of generally cylindrical rollers, the diameter of said second element being greater than the diameter of said first element.
Claim 19
Dependent Claim
19 words
A mowing device as claimed in claim 1 wherein the distance between the first and second element is adjustable.
Claim 20
Dependent Claim
14 words
A mowing device as defined in claim 18 wherein said acute angle is adjustable.
References Cited (Backward Citations)
US2381620A
Cited
US3772865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |