Extendable latchable draft link

Details Extendable latchable draft link Extendable latchable draft link

1993-01-27

1994-07-12

Reese, Randolph A.

Earth working

Mast type hitch

172272, 2804781, 280482, 403325, 403330, B60D 100, A01B 5906

Patent

active

053279786

ABSTRACT:
A telescoping draft link assembly includes a hollow first tractor-coupled link and a second implement-coupled link slidably received by a channel in the first link. A pocket is formed in the first link next to the channel. A plate is pivotally mounted in the pocket and is pivotal from a release position wherein the plate is entirely received in the pocket to a locking position wherein at least a portion of the plate projects into the channel. The second link has a notch formed therein, an end of the notch forming a shoulder which is engageable with the plate to releasably hold the second link in the retracted position. A spring is biased to urge the plate towards its locking position and a knob is attached to the plate so that an operator may pivot the plate to a release position.

REFERENCES:
patent: 2340786 (1944-02-01), Winn
patent: 2717163 (1955-09-01), Martin
patent: 3226818 (1966-01-01), Abbott
patent: 3384937 (1968-05-01), Muncke et al.
patent: 3437355 (1969-04-01), Jeffes
patent: 3446518 (1969-05-01), Dodgson et al.
patent: 3643976 (1972-02-01), Haupt et al.
Deere & Co., "Tractors-Fundamentals of Machine Operation" pp. 188 & 189, 1981.

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