| 摘要 |
<p>PURPOSE:To obtain an automatic travelling machine which can travel stably along a stringing, by dividing travelling-rotational travelling rollers with the stringing inserted into a space between both sides, into the three steps of upper, intermediate, and lower steps, and by providing the intermediate step with stringing grooves, and the upper and lower steps with feed screw threads. CONSTITUTION:In a frame unit 21 containing a driving source 22 and a controller 23 at both side lower-sections, a pair or more of travelling-rotational rollers 24, 25 with a stringing 3 inserted into a space between both sides are supported. The travelling rollers 24, 25 are respectively divided into the three steps of upper, intermediate, and lower steps, and the intermediate steps are provided with stringing grooves 24d, 25d. The upper and lower steps are respectively provided with feed screw threads 24e, 25e, and 24f, 25f for returning the stringing 3 to the stringing grooves 24d, 25d when the stringing 3 gets out of the grooves 24d, 25d. Then, the travelling rollers 24, 25 are rotated by a drive- rotating means, and are travelled along the stringing 3.</p> |
