Motor vehicles – Special driving device – Portable track
Patent
1988-06-17
1989-07-04
Rice, Kenneth R.
Motor vehicles
Special driving device
Portable track
180 954, 280716, B62D 5500
Patent
active
048441953
ABSTRACT:
An improved suspension is provided for a track vehicle between a track frame (24,26) and pivot shafts (40,42) on the tractor. The suspension includes an inboard elastomeric assembly (82) and an outboard elastomeric assembly (84) which incorporates an elastomer (100). The elastomer is designed to provide different spring rates in the vertical direction than the horizontal direction parallel the length of the tractor. This permits the vertical spring rate to be set for most effective isolation of the sprung weight (14) of the crawler tractor while the horizontal spring rate is determined by the significant loads induced by an implement, such as a bulldozer blade (12) on the tractor.
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Deli Jack M.
Karpiel Harvey B.
Nagorzanski Al J.
Pisani Marino J.
Komatsu Dresser Company
Rice Kenneth R.
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