| 摘要 |
A pallet carrying trolley in which a wheel (2) can be raised or lowered relative to a lifting arm (1). A wheel control mechanism (2) moves the wheel from a lowered position (shown) to an upright position by means of the rotation of a rotational axis (3) of the wheel (2), combined with the at least partially vertical movement of the centre (C) of the wheel (2). |
