Bulldozer frame with arm stress equalizer

Details Bulldozer frame with arm stress equalizer Bulldozer frame with arm stress equalizer

1974-12-05

1976-02-24

Pinkham, Richard C.

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

E02F 376

Patent

active

039399192

ABSTRACT:
Arm stress equalizer in tiltable, diagonal strut braced, bulldozer blade mountings, comprising an intervening link having closely adjacent portions of the link proper universally connected to the inner end of different ones of the diagonal struts, and having a prolongation to the link proper rendering the latter swingable toward and from the bulldozer blade. The prolongation is disposed in the central longitudinal plane of the bulldozer, is at the lower end of the link proper, and provides an offset therein which extends diagonally downwardly and forwardly from the struts and the one end of the link proper. The geometry selected insures equalization of side-load-imposed stress in the so-called pusharms provided for mounting the blade, and further insures limitation of stress in the pusharms when, under the special circumstance of an imposed side load condition and a tilted blade condition, the tilt induced stress then tends to be additively superimposed in one of the already side-stressed pusharms.

REFERENCES:
patent: 3234670 (1966-02-01), Fryer et al.
patent: 3743032 (1973-07-01), Schick
patent: 3820610 (1974-06-01), Fryrear et al.

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