| 摘要 |
<p>The undercarriage has tires (8), an outer tire and a middle tire (8'') arranged adjacent to each other in series and forming a tire packer according to type of a divided roll (1). The tires are lowerable from an operative position into a transport position by rotation of a support beam (5) around a rotational axis. The outer tire is impinged with high air pressure in the transport position than the middle tire. A tire pressure regulating system is attached to the undercarriage for changing the air pressure for the outer tire.</p> |
