| 摘要 |
PURPOSE:To stably work with a back-hoe, by connecting a front car body to a rear car body in a manner of interlocking rotation on the front and rear axis, and by setting a torsion bar for resisting rolling action through the both car bodies, along the axis. CONSTITUTION:A front car body 21 is provided with a shovel device 4, and a rear car body 22 is provided with a back-hoe device 14. The frame 18 of the front car body 21 is connected to the frame 19 of the rear car body 22 to be freely rolled by fitting the front and rear axis section 24 of a connecting member 23 supported pivotally with a vertical shaft 20 fixed on the frame 19, loosely on the frame 18 to support the axis section 24. To the front and rear axis section 24, a torsion bar 25 fixed along a front and rear axis section 24, a torsion bar 25 fixed along a front and rear axis Y is connected, and the floating end of the torsion bar 25 is connected to the front end section of the frame 18. As the result, on working with the back-hoe, resistance is applied to rolling action between the both car bodies, and stable work can be carried out.
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