Quick coupler

Details Quick coupler Quick coupler

1977-01-31

1978-09-26

Makay, Albert J.

Earth working

With ground support vertically adjustable relative to frame

Translating motion

74520, 172273, E02F 381

Patent

active

041163460

ABSTRACT:
A quick coupler for attaching and detaching an implement to and from a vehicle equipped with a lift arm and a tilt link includes a hitch having a lower supporting assembly with a lower link member and being pivotally connected to the lift art, and an upper supporting assembly with an upper link member and being pivotally connected to the tilt link, the lower link member being pivotally connected to the upper link member and being movable with respect thereto between an over-center locking position and an angularly collapsed and disengaged position, and having mechanical spring means urging the lower and upper supporting members together, and a hook arrangement secured to the implement and having a lower hook portion and an upper hook portion respectively receiving the lower and upper supporting assemblies therein with the mechanical spring means maintaining the upper and lower link members at said over-center locking condition.

REFERENCES:
patent: 2576703 (1951-11-01), Sheehan, Jr.
patent: 3818551 (1974-06-01), Coughron, Jr.
patent: 3935953 (1976-02-01), Stedman
patent: 4013182 (1977-03-01), Pratt et al.
"16 Latch, Toggle and Trigger Devices" Product Engineering, May 1957, by Sigmund Rappaport, pp. 200 and 201.

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