To provide a chucking truck capable of rotating a pair of traveling parts in forward and backward directions, and absorbing influences of concave and convex parts even when the concave and convex parts and the like exist on a checking object.
This checking truck 10 includes a check part 12, a support part 14 and traveling parts 16, 18. A welding part and concave and convex parts due to corrosion exist on the check object surface of a piping and the like. Shock absorbers 172, 174, 176, 178 having a stroke in light of the parts are arranged between the support part 14 and the check part 12. The checking truck 10 can be pressed to the check object surface of the piping via casters 152 and 156 arranged on a lower face of the check truck 10 by the shock absorbers, and the interval between the check object such as the piping and the check truck 10 can be always maintained constant even for various projections and concave and convex parts. A pair of traveling parts 16, 18 can be independently turned in a forward and backward directions, and can be easily changed in a turning posture even on a curvature structure of the piping and the like in a simple structure.
COPYRIGHT: (C)2010,JPO&INPIT
NAKAGAWA DAISUKE
TOMIZAWA YASUTSUGU
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Fumio Yamamoto
Yukine Sekine