FR2243633A1 - Depth regulator for plough - has hydraulic lifting jack valve controlling press. feeler contacting draw link - Google Patents
Depth regulator for plough - has hydraulic lifting jack valve controlling press. feeler contacting draw linkInfo
- Publication number
- FR2243633A1 FR2243633A1 FR7431937A FR7431937A FR2243633A1 FR 2243633 A1 FR2243633 A1 FR 2243633A1 FR 7431937 A FR7431937 A FR 7431937A FR 7431937 A FR7431937 A FR 7431937A FR 2243633 A1 FR2243633 A1 FR 2243633A1
- Authority
- FR
- France
- Prior art keywords
- plough
- upper link
- hydraulic lifting
- lifting jack
- valve controlling
- 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.)
- Granted
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
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
- A01B63/112—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to control draught load, i.e. tractive force
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
The plough is attached to the three-point linkage of a tractor. The lower link (16) is operated by the piston (18) of a hydraulic lifting jack. A control valve (21) is mounted on the upper link (20). The pressure feeler responds to the force transmitted by the upper link (20). The upper link (20) is formed for two sections which move elastically in relation to one another with the effect of the force transmitted, and the valve (21) is regulated by the relative movement of the two upper link sections. The first upper link section forms a casing (68) open on one side and closed on the other, divided into two compartments by a partition with a central hole, with a spring in each compartment.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732346843 DE2346843A1 (en) | 1973-09-18 | 1973-09-18 | Depth-regulator for agricultural implements - has a hydraulic lift acting on lower link and pressure feeler and valve for plough |
DE2403760A DE2403760A1 (en) | 1974-01-26 | 1974-01-26 | Depth regulator for plough - has hydraulic lifting jack valve controlling press. feeler contacting draw link |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2243633A1 true FR2243633A1 (en) | 1975-04-11 |
FR2243633B3 FR2243633B3 (en) | 1977-07-01 |
Family
ID=25765815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7431937A Granted FR2243633A1 (en) | 1973-09-18 | 1974-09-16 | Depth regulator for plough - has hydraulic lifting jack valve controlling press. feeler contacting draw link |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2243633A1 (en) |
-
1974
- 1974-09-16 FR FR7431937A patent/FR2243633A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2243633B3 (en) | 1977-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |