The cart device (10) includes a base portion (11) capable of traveling on a floor a support base body (12) provided on the base portion (11) so as to project upward and a top board (14) supported by the support base body (12) from below. In addition, the support base body (12) includes a fixed post (18) fixed to the base portion (11) so as to extend upward a movable post (19) provided in the fixed post (18) so as to be capable of moving in an up-and-down direction relative to the fixed post (18), the movable post (19) supporting the top board (14) from below and a bumper member (27) provided on an outer lateral surface of the movable post (19) so as to be capable of absorbing impact.
