| 摘要 |
A wheel mechanism for controlling turning of the front wheel of a stroller includes a vertical axle and a latch mechanism. The upper end of the vertical axle is pivotally connected to the frame of the stroller. The lower end of the vertical axle is fixed to a horizontal axle of the wheel. The latch is movably mounted along the vertical axle and the frame and selectively moved between a released position and a locked position. When in the released position, the wheel can freely turn around the vertical axle. When in the locked position, the wheel cannot turn on the vertical axle but only rotates with the horizontal axle in a certain direction.
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