GB1424226A - Control device for track markers - Google Patents
Control device for track markersInfo
- Publication number
- GB1424226A GB1424226A GB1708473A GB1708473A GB1424226A GB 1424226 A GB1424226 A GB 1424226A GB 1708473 A GB1708473 A GB 1708473A GB 1708473 A GB1708473 A GB 1708473A GB 1424226 A GB1424226 A GB 1424226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- movement
- pulley
- pulley block
- arm
- markers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
- A01B69/02—Ridge-marking or like devices; Checkrow wires; Accessories therefor
- A01B69/024—Ridge-marking or like devices; Checkrow wires; Accessories therefor adapted to cut and form a ridge or forrow in the soil surface, e.g. with a disc
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Guiding Agricultural Machines (AREA)
Abstract
1424226 Agricultural track marker; tractor hitches AMAZONEN-WERKE H DREYER 10 April 1973 [11 April 1972] 17084/73 Heading A1B, A1D and A1P A control device for lifting and lowering 'track markers is characterised in that movement of the markers results from vertical movement of an implement carried by tractor lifting arms and provides automatic alternation between two track markers carried one on each side of the implement. When an implement 16 is lifted by rotating tractor lifting arms 7, 8 anticlockwise, lever 9 rotates with arm 7 about a pivot 10 causing an anticlockwise force on a lever 1 via a spring 15, a plate 13 and an arm 11. This causes a pulley 12 on the end of the lever 1 to move in the direction of the arrow 27 (Fig. 3). A wire 20 passing over pulleys 12 and 19 terminates at pulley blocks 2 and 2' and since pulley block 2' is locked against a stop 26' by a pawl 24', movement of the pulley 12 results in inward movement of the pulley block 2 and also a wire 18 attached to a left hand track marker (not shown). Towards the end of its movement the pulley block 2 makes contact with the end of a swinging arm 23 (Fig. 2) and displaces an assembly 3, including a rod 21. When the pulley block 2 has reached the end of its stroke, a rod 21 has caused rotation of the pawl 24', thus unlocking the pulley block 2', and also allowed the pawl 24 to rotate clockwise with gravity to lock the pulley block 2 against the stop 26. Also the end of a spring 25 attached to the swinging arm 23 has toggled about a pivot 22 causing the arm 23 to rotate clockwise to its second stable position. Lowering of the tractor lifting arms will now cause movement of the pulley 12 in the direction opposite to the arrow 27 and thus outward movement of the pulley block 2' and downward movement of the right hand track marker attached to the wire 18'. Subsequent movement will cause the left and right hand track markers to lift alternately. Movement of each marker through a limited stroke can be made without reversal taking place.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722217302 DE2217302C3 (en) | 1972-04-11 | 1972-04-11 | Switching device for alternating lifting and lowering of track markers on agricultural attachments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1424226A true GB1424226A (en) | 1976-02-11 |
Family
ID=5841562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1708473A Expired GB1424226A (en) | 1972-04-11 | 1973-04-10 | Control device for track markers |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2217302C3 (en) |
| FR (1) | FR2179964B1 (en) |
| GB (1) | GB1424226A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT342352B (en) * | 1976-04-05 | 1978-03-28 | Reformwerke Bauer & Co Ges M B | MECHANICAL DEVICE FOR AUTOMATIC CHANGING OF THE TRACK INDICATORS ON TRACTORS, LIFTING AND LOWERING THE MACHINES |
| DE2908953C2 (en) * | 1979-03-07 | 1983-05-11 | Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen | Actuating device for marker arms |
-
1972
- 1972-04-11 DE DE19722217302 patent/DE2217302C3/en not_active Expired
-
1973
- 1973-04-10 GB GB1708473A patent/GB1424226A/en not_active Expired
- 1973-04-11 FR FR7313014A patent/FR2179964B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2179964A1 (en) | 1973-11-23 |
| DE2217302B2 (en) | 1975-05-07 |
| FR2179964B1 (en) | 1977-08-05 |
| DE2217302C3 (en) | 1975-12-18 |
| DE2217302A1 (en) | 1973-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |