| 摘要 |
PURPOSE:To enable work in such place as unsuitable for living bodies by constructing the working truck such that the flexure of the hand arm of the hand truck is detected and the moving direction is controlled by means of a drive motor while the stopping position of the truck and the setting position of a machine tool mounted on said truck is automatically controlled. CONSTITUTION:In order to control the moving direction through detection of the flexure of a hand arm 28, a drive motor is mounted on a hand truck (a). Then said truck (a) is provided with expandable/contractable posts 10, 11, a positioning frame 16 mounted liftably/lowerably on said posts, various machine tools and their fixing arms 23 and a securing arm having suckers. A controller for automatically controlling the drive motor for the hand truck (a), the stopping position and the machine tool setting position is provided. With such arrangement, the hand truck (a) is quickly carried into a construction site and used for positioning the machine too, thus enabling the work in a place unsuitable for living bodies.
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