Land vehicles – Wheeled – Stable vehicles – handle-propelled
Patent
1998-08-05
2000-05-16
Mai, Lanna
Land vehicles
Wheeled
Stable vehicles, handle-propelled
280 87051, B62B 700
Patent
active
060625775
ABSTRACT:
An improved brake mechanism for wheels of baby carriages and strollers is integrated in a single unit and is adjustable between a universal or swivel state, a directional state, and a brake state. Transformation among the three states can be realized by a foot pedal. The brake mechanism includes a special V-shaped spring, a sliding collar that locks or unlocks the mechanism between the three states, as well as a colored indicator that is used to display the current state of the wheel.
REFERENCES:
patent: 4759098 (1988-07-01), Ko
patent: 5975545 (1999-11-01), Hu
Mai Lanna
McKinley Kevin
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