Lifting rod for the three-point attaching device of a tractor

Details Lifting rod for the three-point attaching device of a tractor Lifting rod for the three-point attaching device of a tractor

1997-02-13

1998-10-20

Melius, Terry Lee

Earth working

Mast type hitch

Sway limiting means or swayable tool

172457, 2804551, 280474, A01B 59043

Patent

active

058232710

ABSTRACT:
A lifting rod for the lower steering arm of a tractor, at the ends of the lifting rod, has connecting elements in the form of a connecting yoke 6 and a ball joint 7. The connecting yoke 6, via a threaded rod 9, is threaded into a threaded bore 10 of a tubular rod element 11. The rod element 11 is received in the housing bore 21 of the housing 8 and is movable along the longitudinal axis 17. The rod element 11 and the housing 8 are able to assume two different positions relative to one another, with the lifting rod length being fixed in one of the two positions. In the other position, both may assume a floating relationship relative to one another. To allow the lifting rod length to be set even when the lifting rod is in the mounted condition and to ensure that both parts do not change their respective positions even when in use, it is proposed that in the rigid position, the plug-in pin 24 engages a recess 13 in the rod element, so that support is provided in the shortening direction and in the direction of rotation, whereas for the direction of extraction stops are provided to prevent any lengthening. After the plug-in pin 24 has been extracted, the rod element 11 can be turned by 90.degree., to enable the plug-in pin to pass through the slot 14 in the rod element 11. The lifting rod length is shortened, however rotation is prevented.

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