| 摘要 |
<p>The frame of a vehicle has a rearward opening into which a counterweight may be positioned and through which the counterweight may be removed. Support members and forward stop members are associated with the frame to support the counterweight and limit its relative forward movement respectively. In such forward position, the counterweight may be secured relative to the frame. A second counterweight may be fitted to the rear of the frame over the opening to limit removal of the first-mentioned counterweight from the frame. Upper members are associated with the frame to act upon the top portion of the first counterweight to keep it from falling under its own weight while it is being only partially supported by the support means (i.e., as it is being fitted into or removed from the frame). The second counterweight further defines hitching means for towing purposes.</p> |
