Rapidly-deployable vehicle snow chain system having individually-replaceable interlocking chain attachment plates
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United States of America Patent
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May 16, 2000
Grant Date -
N/A
app pub date -
Dec 4, 1997
filing date -
Dec 4, 1997
priority date (Note) -
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Abstract
An improved snow chain system for wheeled vehicles that can be rapidly deployed and rapidly retracted, includes a rotatably-mounted friction drive disc having a circumferential edge that is pressure biased against the sidewall of a tire. Multiple arcuate chain attachment plates, which interlock much like a laminar puzzle, are placed end-to-end to form a ring-shaped unit. The ring-shaped unit is held together and to a planar surface on the friction drive disc by a plurality of bolts, each of which passes through a single attachment plate and through the friction drive disc. Each arcuate attachment plate has either one or two chain segments attached thereto. In the case where only a single chain segment is attached, a U-shaped anchoring chain link is welded to the attachment plate. In the case of attachment of a pair of chain segments, a M-shaped anchoring link is employed. The invention facilitates replacement of individual chain segments or chain segment pairs while retaining structural integrity of the circular ring.
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