Bicycle frame and bicycle, and baby carriage using same capable of two-wheel and three-wheel conversion
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 26, 2016
Grant Date -
Jan 22, 2015
app pub date -
Oct 10, 2014
filing date -
Apr 12, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cycle frame easily converted from a bicycle to a tricycle and vice versa, and to a cycle and a baby carriage using same. The cycle includes a main frame including a main support and a pair of sub-supports branching from the main support, a pair of conversion frames, front end portions thereof being hingeably connected to rear end portions of the sub-supports such that the distance between rear end portions thereof is adjustable, a pair of connection brackets respectively connected to the rear end portions of the conversion frames, a fork frame rotatably connected to the front end portion of the main support, a front wheel shaft rotatably connected to the fork frame, a main rear wheel shaft, both ends thereof being respectively and separably connected to the connection brackets, and a propelling pedal rotatably mounted on the main support and drive-connected to the main rear wheel shaft.
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