A first engaging hole and a second engaging hole are formed in a fan-shaped standing portion which is fixed to a vehicle body frame and concentrically constructed with respect to a tilt direction of a the driver’s cabin with a hinge shaft as a center of tilting. Prior to loading the operating system, a determination is made as to whether the operating system on the local storage device is corrupted in response to starting the data processing system. The heat exchanger 16 supplies the carbonated beverage in the supercooled state to release the supercooled state in the outside, and the carbonated beverage on standby for serving in a portion of the beverage supply circuit 7 cooled by at least the heat exchanger 16 for supercooling is maintained in an unsaturated state. This enables to increase the cycle characteristic, preventing deterioration of the cell characteristic caused by a repeated use. Use of such polymer compositions for the manufacture of molded or extruded articles.