| 摘要 |
PROBLEM TO BE SOLVED: To provide a table roller, in place of a roller, of a self-advancing type capable of being held in an always grounding condition when moving or carrying a heavy cargo. SOLUTION: Two elastic wheel plates 4, 4 vertically expandingly-adjustable are mounted in direction the opposite to each other between a smooth rotating table 2 and an underframe 1 for the table roller having two roller sets 3, 3 axially supported with the rotating table 2 on the upper face of the underframe 1, driven gears 5, 5 are fixed to one axial ends of the roller sets 3, 3, respectively, a driving intermediate gear 6 is meshed between both driven gears 5, 5, a driving shaft 7 of the driving intermediate gear 6 is connected to a shaft output rod 9 of an orthogonal shaft motor 8 held on the underframe 1 and the underfarme on which the heavy material is placed is made to self-advance, thereby requiring less manual labor.
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