Lift arm with improved chain connector

Details Lift arm with improved chain connector Lift arm with improved chain connector

1979-04-16

1980-12-16

Eickholt, E. H.

Excavating

Peat excavators

24116R, E01H 500

Patent

active

042388953

ABSTRACT:
An improved lift arm is pivoted upward by a hydraulic cylinder to lift a plow blade by a chain connected between the lift arm and blade. The lift arm includes an elongated body with a chain receiving member permanently fixed to an end thereof. Engaging a link of the chain is a slot in an upwardly facing concave surface of the chain receiving member. The slot has a width slightly greater than the thickness of a link of the chain so that a link is engaged and restrained. An opening, having a width slightly greater than the width of the link, receives the chain ahead of the link restrained in the slot. Regardless of the relative orientation of the chain and lift arm, the concave surface causes the chain and chain receiving member to remain generally perpendicular.

REFERENCES:
patent: 1633020 (1927-06-01), Ingram
patent: 1709244 (1929-04-01), Abbe
patent: 2775176 (1956-12-01), Gibson
patent: 2978767 (1961-04-01), Goss
patent: 3125355 (1964-03-01), Snuggins
patent: 3127873 (1964-04-01), Guillavme et al.
patent: 3252716 (1966-05-01), Gaterman
patent: 3465456 (1969-09-01), Meyer
patent: 3665562 (1972-05-01), Gower et al.
patent: 4027989 (1977-06-01), Pierce
patent: 4176874 (1979-12-01), Archer

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