Wheel substitutes for land vehicles – Combined or convertible
Patent
1980-11-17
1983-11-08
Marmor, Charles A.
Wheel substitutes for land vehicles
Combined or convertible
305 31, 305 32, B62D 5530
Patent
active
044138628
ABSTRACT:
A track recoil system includes a track adjuster actuator which may be extended by the introduction of grease to compress a previously installed coil compression spring to establish a pre-selected preload in the latter. The track adjuster includes a housing having a cylinder telescopically mounted therein with the housing bearing directly on the spring and with the cylinder having a head engaged with a removable adjuster stop when the adjuster is being extended for compressing the spring. Preload spacers hold the housing in place to in turn hold the spring in a desired preloaded state so as to permit grease to be bled from the actuator to allow the adjuster to be collapsed by backing the cylinder head away from the adjuster stop so as to leave clearance between the adjuster for permitting the adjuster to be later extended, if necessary, to accommodate for an increase in track length due to wear. Compression of the spring may be accomplished by removing the adjuster stop and inserting a suitable jack between a track frame member, to which the stop is releasably secured, and the adjuster.
REFERENCES:
patent: 1865087 (1932-06-01), Daniel
patent: 3779615 (1973-12-01), Kennicutt et al.
patent: 3829172 (1974-08-01), Oestmann et al.
patent: 3980351 (1976-09-01), Orr et al.
patent: 4088377 (1978-05-01), Corrigan
patent: 4223878 (1980-09-01), Isaia et al.
Deere & Company
Marmor Charles A.
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