Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Reexamination Certificate
2006-08-29
2006-08-29
Ellis, Christopher P. (Department: 3618)
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
C280S040000, C280S646000, C280S652000
Reexamination Certificate
active
07097183
ABSTRACT:
A trolley structure allowing synchronous retraction or extension of a stand and two wheels includes a main frame, wheel bases, retainers, a stand, and a handlebar; each wheel base inserted onto a respective rod of the main frame and fixed with the respective retainer; the stand pivoted to the retainers; the handlebar inserted into retractable holders of the main frame; a plurality of troughs provided at the bottom of each wheel base; a driven gear pivoted to the outer edge of each retainer; a plurality of checking members provided on the driven gear to be held in the troughs for driving the driven gear to rotate; and an active gear provided on a first pivoting holder of the stand to mesh with the driven gear to drive the driven gear to turn.
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Best Caddy Co., Ltd.
Rosenberg , Klein & Lee
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