Wheel substitutes for land vehicles – Tracks or treads – With guide means for interfitting with sprocket wheel or roller
Patent
1996-02-16
1997-06-10
Stormer, Russell D.
Wheel substitutes for land vehicles
Tracks or treads
With guide means for interfitting with sprocket wheel or roller
305193, 305199, B62D 5512, B62D 5518
Patent
active
056369115
ABSTRACT:
An improved drive connection between the track and drive sprocket of a tr laying vehicle has a specially modified sprocket and track units. The track elements of the improved drive connection include links connecting the track units at their lateral, wells in the track units and a wall on one side of each well. The sprocket has an axle and a mounting flange or hub fixed to the axle. Outer gear teeth fixed to the hub flange protrude between the links when the sprocket engages the track while inner gear teeth fixed to the hub engage the specially configured bearing surfaces in the wells. The sprocket includes a continuous land surface having an annular portion between the inner and outer teeth and having other portions between the inner teeth. The continuous land surface contacts the walls where the sprocket engages the track. At least some of the teeth have inserts at tooth bearing surfaces, the inserts comprised of a matrix more elastic than the teeth and inclusions in the matrix more wear resistant than the teeth. The inserts have crowned surfaces protruding outward from the tooth bearing surfaces so that the inserts accept a majority of load force directed at the tooth bearing surfaces.
REFERENCES:
patent: 2374644 (1945-05-01), Bombardier
patent: 4262972 (1981-04-01), Falk
patent: 4472164 (1984-09-01), Pusch et al.
patent: 5393134 (1995-02-01), Oertley
Kuhn David L.
Stormer Russell D.
Taucher Peter A.
The United States of America as represented by the Secretary of
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