Caster structure
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United States of America Patent
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-
Mar 2, 2004
Grant Date -
N/A
app pub date -
Jun 10, 2002
filing date -
Jun 10, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A caster structure comprises a small wheel, a mounting plate, a roller bearing, a wheel frame, and a locating member. The wheel is fastened pivotally with the wheel frame which is fastened with the underside of the mounting plate by the locating member in conjunction with the roller bearing. The locating member is provided with a plurality of rollers. The rollers of the locating member and the rollers of the roller bearing move to reduce friction at such time when the wheel is turned in a direction.
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