| 摘要 |
PROBLEM TO BE SOLVED: To provide a prop-hammering machine that can exactly guide a prop at each important position without excessive bending of the prop by arranging a plurality of rollers rotatably on the inner surface of a specific prop-hammering guide. SOLUTION: This prop-hammering machine is equipped with a pair of the left and the right running gears 2, 2 at the lower part of the loading platform and with a prop-hammering unit for hammering an inverse U-shape prop in the front or the rear of the platform. On the inner face of the hammering guides 5 arranged along the shape of the inverse U-shape prop, a plurality of rollers 6, 6 are rotatably set at a prescribed interval. Consequently, the contact area between the prop to be set on hammering and the guiding tools are reduced and the rotating rollers 6, 6 can surely slide the prop along the guiding tool 5 without friction.
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