| 摘要 |
PURPOSE:To enable automation of a work to weld a corner, by a method wherein, a truck, conducting automatic welding by means of a weld torch mounted thereon, is adapted to be capable of passing through a corner formed with 2 wall surfaces which extend at an angle of the one with the other. CONSTITUTION:A gear 22 is secured to the upper end side of a front magnetic roller shaft 17, and a gear 23 to the upper end side of a rear magnetic roller shaft 18. The gear 23 is coupled to a gear 26a, communicated to a motor 25, through a gear 26c rotatably supported to a car body 10. A direction changing lever 28 is supported to the car body 10 so that it is rotatable about a lever shaft 29 mounted to the imtermediate part thereof. The one end side of the direction changing lever 28 is branched into two branch parts 28a and 28b extending in juxtaposition with each other, and respective rollers 30 are rotatably supported to the forward ends of the branch parts 28a and 28b. Function of the direction changing lever 28 enables a truck to run on a right-angled wall part. |
