To solve the conventional four-wheel cart problem that the cart is inclined to yaw right and left relative to the direction of advance or the cart is inclined to fall forward in the direction of advance when the road is rough with concave and convex, so it is difficult to go straight and it is difficult for a cart operator to walk since the bag or casters of the cart hit the foot of the operator.

Instability in right and left is suppressed by employing fixed wheels for at least two rear wheels and setting the attachment position of a grip before the position of each front wheel. Besides, falling forward action is reduced by arranging the grip in a lower position. In addition, the grip is arranged to be coupled directly with the leftmost frame or rightmost frame of the cart to prevent contact with the foot of the cart operator.