| 摘要 |
<p>PURPOSE:To prevent a connecting arm from being broken and provide prompt removal/attachment for a working vehicle by fitting, at the connecting arm, a locking piece which can be engaged with a rear bumper from the above, when the working vehicle is not attached, so that the connecting arm may be supported, floating from a traveling surface. CONSTITUTION:The connecting part of a small-size towing vehicle A is constituted so that a self-traveling small-size tow car A and a working vehicle B are fitted coaxially with the axle of the rear wheel of the small-size tow car A through a connecting arm 7a which is fitted to the rear wheel so as to rotate relatively and oscillate vertically. A locking piece 11 which can be engaged with a rear bumper R installed at the rear part of the small-size tow car A from the above when a working vehicle B is not attached is mounted on the connecting arm 7a so that the connecting arm 7a which is locked at the rear bumper R may be supported, floating from the traveling surface. It is thus possible to prevent the connecting arm 7a from coming into contact with the ground when the small-size tow car A is used by itself.</p> |
