| 摘要 |
PROBLEM TO BE SOLVED: To provide a handcart including a novel wheel structure facilitating riding over of a step.SOLUTION: A handcart includes: a vehicle body 10 including a front wheel 11 and a rear wheel 12; a base 13 attached on an undersurface of the vehicle body 10 so as to slide in a front/rear direction and a vertical direction; an auxiliary wheel 19 supported on the base 13; an energizing force exertion device 21 exerting energizing force at all times to the base 13 in a forward direction; and a guide device 18 which exerts vertical deformation to the base 13 in accordance with front/rear directional deformation of the base 13, maintains an undersurface of the auxiliary wheel 19 at a height equal to or higher than an undersurface of the front wheel 11 when the base 13 advances by the energizing force to a forward movement limit, and lowers the undersurface of the auxiliary wheel 19 to a height lower than the undersurface of the front wheel 11 when the base 13 retreats against the energizing force. |
