| 摘要 |
A wheel fixing device for a wheel assembly of a baby carriage including: a hollow shaft element at the extream end of the shaft; a rotatable seat rotatable with respect to the wheel assembly being rotatably connected with a lower part of the hollow shaft element; the rotatable seat having a pair of knobs; a hub body joining said rotatable seat and a pair of wheels of the wheel assembly; and a slidable housing comprising: a central recess for encompassing the hollow shaft element and being vertically slidable along the hollow shaft element; a central slot on both sides thereof; a hole on both sides thereof; a spring member at both sides thereof with two legs extending in the same direction and with one leg thereof retained in the hole of the slidable housing and the other leg retained in respective hole of the hollow shaft element for securing the slidable housing and the hollow shaft element together and for imparting a desirable resiliency therewithin such that the slidable housing has a tendency to move downwards when the slidable housing is urged to a lower position; a pair of channel slots at corresponding front and rear surfaces thereof for rotatably the rotatable seat relative to said hollow shaft; said channel slots being complementary shaped with respect to the knobs for catching the knobs of the rotatable seat, and thereby making the rotatable seat non-rotatable.
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