Abstract: A wheel module for a vehicle includes a tire, a steering unit, a driving unit, a braking unit, and a suspension mechanism. The steering unit is configured to output a steering force for the tire. The driving unit is configured to output a driving force for the tire. The braking unit is configured to output a braking force for the tire. The suspension mechanism is supported by an upper end fulcrum and a lower end fulcrum so as to reduce vibration or impact transmitted from a road surface. An imaginary straight line extending along a vertical direction and passing through a center of the tire in a radial direction and in a width direction of the tire is defined as a tire central axis. The lower end fulcrum of the suspension mechanism is positioned away from the tire central axis when viewed from a side surface of the tire.

Abstract: The ink is dropped onto a flat plate, and then supplied to a printing area by a doctor blade. An impression pressure cylinder around which a material to be printed is wound is then rolled against the plate under a predetermined printing pressure, or the plate is moved to the impression cylinder and rotated freely in a predetermined position by the frictional resistance thereof with respect to the plate. Thus, the ink on the printing area is transferred to the material to be printed to carry out printing. The rolling of impression cylinder or moving of the plate is performed by a pneumatic cylinder. The printing speed, the interruption of the movements of the impression cylinder or plate, and the returning of the impression cylinder or plate to its original position after the completion of the printing operation are controlled by regulating the pressure supplied to the air cylinder.