| 摘要 |
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.
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