Wheel substitutes for land vehicles – Tracks or treads – With roller means
Patent
1976-05-20
1978-04-11
Reeves, Robert B.
Wheel substitutes for land vehicles
Tracks or treads
With roller means
305 58R, B62D 5520
Patent
active
040836118
ABSTRACT:
A master link assembly in a continuous flexible track assembly for a crawler tractor comprises two laterally spaced apart (left and right) parallel master links and each master link comprises two overlapping half-links held in alignment by a pin extending into registering pin holes in the half-links. The overlapping half-links are mechanically secured together in fixed relationship by track shoe capscrews which extend through holes in a master link track shoe which overlies both half-links and screw into tapped capscrew holes in the half-links. Besides aligning the overlapping half-links, each pin also serves as a safety connection in case the capscrews break and also enables removal of the capscrews and replacement of the track shoe without breaking the track assembly. Axial displacement of a pin from its pin holes is prevented by arranging at least one tapped screw hole in each half-link so that a capscrew, when fully inserted therein, engages a groove in the side of the pin and prevents axial movement of the pin.
REFERENCES:
patent: 2882102 (1959-04-01), Rund
patent: 3822923 (1974-07-01), Stedman
Miller James L.
Schaffner Donald L.
Brown Robert A.
Fiat-Allis Construction Machinery, Inc.
Kirby Thomas F.
Reeves Robert B.
Rockwell Harvey W.
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