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Coupling hook particularly for the lower arms of a three-point linkage of a tractor

A tractor and coupling ball technology, applied in the field of coupling hooks, can solve the problems of easy to use and sacrifice reliability

Active Publication Date: 2008-11-19
LH ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ease of use cannot be built at the expense of reliability

Method used

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  • Coupling hook particularly for the lower arms of a three-point linkage of a tractor
  • Coupling hook particularly for the lower arms of a three-point linkage of a tractor
  • Coupling hook particularly for the lower arms of a three-point linkage of a tractor

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Experimental program
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Effect test

Embodiment Construction

[0017] In the figures, the coupling hook according to the invention is shown without a cover, which is welded to the coupling hook in the final product. Also, coupling hooks (category 3, ISO 11001) shown slightly smaller than actual size.

[0018] The coupling hook itself is also attached to the lower arm by welding. The coupling hook comprises a main body 1 with a coupling throat 27 and a housing 25, see Figure 1a . The operating mechanism of the pawl 2 is mainly located in the housing 25 . The coupling throat 27 is conventional, which is notably arranged to receive the coupling ball 11 . The coupling ball 11 is usually permanently mounted in the appliance, or mounted to a conventional three-point coupling pin. Also, quick coupling is possible even without coupling balls, but this is not recommended. In addition, possible small angular differences between the pin and the lower arm can be eliminated by means of the coupling ball. In the figures, the coupling ball is mark...

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PUM

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Abstract

The invention relates to a coupling hook, more particularly a coupling hook for the lower arms of a three-point linkage of a tractor, which is intended to attach an implement to a tractor by means of a coupling ball 11. The body 1 includes a housing 25 for a catch mechanism and a coupling throat 27 arranged to receive particularly the coupling ball 11, and a catch 2 rotating in the housing 25 for locking the coupling ball 11 into the coupling throat 27. In the free position, the catch 2 can rotate, thus permitting the coupling ball 11 to rise out of the coupling throat 27. The catch 2 is operated by an operating lever 3. The catch 2 is arranged to return the operating lever 3 to the locking position, when the coupling ball 11 rotates the catch, the catch rises out of the coupling throat.

Description

technical field [0001] The invention relates to a coupling especially for the lower arm of a three-point lever mechanism of a tractor for attaching an implement to the tractor by means of a coupling ball or the like, said coupling comprising: [0002] a body on which is provided a housing for the detent mechanism and a coupling throat arranged to receive, inter alia, said coupling ball; [0003] a detent that rotates about a fixed pin in the housing, the end of which protrudes outward from the housing into the coupling throat in order to lock the coupling ball in the coupling throat, while in the free position it can rotate allowing the coupling The ball rises out of the coupling throat; [0004] An operating lever for operating the pawl for moving the pawl from the holding position to the free position and back again, in the holding position the operating rod prevents the pawl from rotating out of the coupling throat. Background technique [0005] A quick release coupler ...

Claims

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Application Information

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IPC IPC(8): A01B59/00B60D1/04
CPCB60D1/04A01B59/006A01B59/043
Inventor P·维基T·维基P·昆普卡里奥S·普斯蒂宁
Owner LH ELEVATOR
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