Adjustable link assembly

Details Adjustable link assembly Adjustable link assembly

2006-05-23

2006-05-23

Will, Thomas B. (Department: 3671)

Earth working

Mast type hitch

C403S046000

Reexamination Certificate

active

07048071

ABSTRACT:
An adjustable link assembly includes a pair of coupling yokes, each having a threaded rod projecting therefrom. First and second lock members projecting from the corresponding first and second yokes. The first and second yokes are threadably coupled to opposite ends of a threaded central body. The body has a central non-cylindrical adjusting portion located between first and second indexing portions. A bracket is slidable over the body. The bracket is rotatable with respect to the body when the bracket is positioned over the indexing portions and being non-rotatably coupled to the body when the bracket is positioned over the central adjusting portion. A lever is pivotally coupled to the bracket so that an end of the lever may be coupled to either of the lock members to prevent rotation of the central body relative to the yokes.

REFERENCES:
patent: 2790658 (1957-04-01), Robinson
patent: 2878043 (1959-03-01), Edman et al.
patent: 4126057 (1978-11-01), von Allworden et al.
patent: 4194757 (1980-03-01), Lucas et al.
patent: 4295389 (1981-10-01), Geisthoff et al.
patent: 6056069 (2000-05-01), Hagen et al.
patent: 6609575 (2003-08-01), Crabb
Deere & Co., “Rockshaft and Three-Point Hitch”, Operator's Manual, 7600-7800 Tractors, p. 50-15, 1992.

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