Wheel substitutes for land vehicles – Tracks or treads – With roller means
Patent
1991-11-26
1992-12-22
Stormer, Russell D.
Wheel substitutes for land vehicles
Tracks or treads
With roller means
305 39, 305 14, B62D 55205
Patent
active
051729652
ABSTRACT:
A low ground pressure track chain with track links with offset pin and bushing bores is disclosed. The track chain is provided with a plurality of low ground pressure track shoes and includes a like plurality of link sets coupled by a like plurality of joints. Each link set has one of the track shoes secured thereto and includes a pair of laterally spaced links. Each link has a laterally offset inboard end collar having a first bore, an opposite laterally offset outboard end collar having a second bore, and a rail surface. The rail surface has a predetermined overall width between an inner edge and an outer edge. An inner surface of the inboard end collar is offset inwardly from the inner rail edge and an outer surface thereof is substantially offset outwardly to a position where it is closer to the outer rail edge than to the inner rail edge to provide the first bore with a predetermined press length that is greater than one-half the width of the rail surface. An inner surface of the outboard end collar is likewise offset outwardly so as to lie outboard of the offset outer surface of the inboard end collar of an adjoining link. An outer surface thereof is substantially offset laterally at least 0.75 times the rail width beyond the outer edge of the rail surface to provide the second bore with a predetermined press length that is at least as great as the overall width of the rail surface.
REFERENCES:
patent: 3574419 (1971-04-01), Hatch
patent: 4204716 (1980-05-01), Baylor
patent: 4324437 (1982-04-01), Narang
patent: 4438981 (1984-03-01), Harms
patent: 4449357 (1984-05-01), Balitch
patent: 4582366 (1986-04-01), Burfield et al.
Caterprillar Inc.
Pence O. Gordon
Stormer Russell D.
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