| 摘要 |
<p>PURPOSE:To improve durability and safety of the constitution for lifting up a lateral shifting wheel and facilitate the compact formation. CONSTITUTION:Longitudinal shift wheels 4 are installed through each pivotal supporting arm 3 at the front part of a cargo deck 1, and lateral shift wheels 5 are installed in free elevation through each bearing arm 30, and rear wheels are installed through a hydraulic cylinder at the rear part of the cargo deck 1, and direction change is performed by a pumping handle, and the cargo deck 1 is shifted in the longitudinal direction through the grounding of the longitudinal shift wheel 4 and in the lateral direction through the grounding of the lateral shift wheel 5. A lifting-up arm 40 whose one edge side is connected in a turnable manner with the cargo deck 1 is installed, and one edge side of a swing link 45 the other edge side of which is axially supported in a turnable manner with the pivotal supporting arm 3 is connected with the lifting-up arm 40, and in interlocking with the rising operation of the longitudinal shift wheel 4 of the pivotal supporting arm 3, the lifting arm 40 is engagement-operated with a bearing arm 30, and the lateral shift wheel 5 is lifted up on the ground.</p> |
