FR2274208A1 - Three point hitch for crawler tractor - has movable and fixed parts, lifting and damping jacks - Google Patents

Three point hitch for crawler tractor - has movable and fixed parts, lifting and damping jacks

Info

Publication number
FR2274208A1
FR2274208A1 FR7420377A FR7420377A FR2274208A1 FR 2274208 A1 FR2274208 A1 FR 2274208A1 FR 7420377 A FR7420377 A FR 7420377A FR 7420377 A FR7420377 A FR 7420377A FR 2274208 A1 FR2274208 A1 FR 2274208A1
Authority
FR
France
Prior art keywords
implements
lifting
movable
jacks
fixed parts
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
Application number
FR7420377A
Other languages
French (fr)
Other versions
FR2274208B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MANCEL JACQUES
Original Assignee
MANCEL JACQUES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MANCEL JACQUES filed Critical MANCEL JACQUES
Priority to FR7420377A priority Critical patent/FR2274208A1/en
Publication of FR2274208A1 publication Critical patent/FR2274208A1/en
Application granted granted Critical
Publication of FR2274208B1 publication Critical patent/FR2274208B1/fr
Granted legal-status Critical Current

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
    • A01B69/003—Steering or guiding of machines or implements pushed or pulled by or mounted on agricultural vehicles such as tractors, e.g. by lateral shifting of the towing connection
    • 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
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • A01B59/04—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor
    • A01B59/042—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling means arranged on the rear part of the tractor
    • A01B59/043—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling means arranged on the rear part of the tractor supported at three points, e.g. by quick-release couplings

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Agricultural Machines (AREA)

Abstract

A tractor hitch has its attachment arm connected to a swinging part (11) supported on the horizontal bearing surface (14) (in the form of a slide) of a fixed frame (15), with the two uprights (16) to which are fixed the two horizontal hinge pins (17) of levers (18) linked together by a transverse bar (19), controlled by two jacks (20). Two stays (21, 22) connect levers (18) to lift arms (23, 24) which pivot on the swinging part (11), around a pin (25). A third jack (27) attached and pivoting at point (28) ends in a movable rod (26), for the top link of the three point linkage. The system allows directional adjustments to be made to the tractor, eliminates the so-called "rudder" effect of implements, and a jack (46) controlled by the driver damps lateral movements of the implements on sideland ground and when turning with implements out of work.
FR7420377A 1974-06-12 1974-06-12 Three point hitch for crawler tractor - has movable and fixed parts, lifting and damping jacks Granted FR2274208A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7420377A FR2274208A1 (en) 1974-06-12 1974-06-12 Three point hitch for crawler tractor - has movable and fixed parts, lifting and damping jacks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420377A FR2274208A1 (en) 1974-06-12 1974-06-12 Three point hitch for crawler tractor - has movable and fixed parts, lifting and damping jacks

Publications (2)

Publication Number Publication Date
FR2274208A1 true FR2274208A1 (en) 1976-01-09
FR2274208B1 FR2274208B1 (en) 1978-08-11

Family

ID=9139964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420377A Granted FR2274208A1 (en) 1974-06-12 1974-06-12 Three point hitch for crawler tractor - has movable and fixed parts, lifting and damping jacks

Country Status (1)

Country Link
FR (1) FR2274208A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701800A1 (en) * 1993-02-26 1994-09-02 Despre Exploit Ateliers Mec Intermediate steering hitch system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701800A1 (en) * 1993-02-26 1994-09-02 Despre Exploit Ateliers Mec Intermediate steering hitch system

Also Published As

Publication number Publication date
FR2274208B1 (en) 1978-08-11

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse