| 摘要 |
PROBLEM TO BE SOLVED: To integrate three functions of backhoe in order to solve such problems that each user owns three backhoes such as a standard type, a rear small slewing type and a ultra small slewing type in order to correspond to the conditions of a work place where the user has to offer his service and also the operator handling the backhoe has to acquire respective backhoe operating methods, and it is not easy to find the skilled backhoe operators in the construction industry. SOLUTION: The pivotally supporting portion of a slewing work vehicle is arranged and installed in a slidable manner in the back and forth direction or diagonal direction on the swivel base. COPYRIGHT: (C)2003,JPO
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