| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight grinding device with a simple mechanism, allowing wide-range and minute adjustment of the positional relation between a grinding disk and an operation roller. SOLUTION: In this grinding device, two vertical bearings 15 are provided at an interval on an axis parallel to the rotation shaft of a drive means 11 in front of the drive means 11, horizontal bearings 16 are provided on axes perpendicular to the rotation shaft on both sides of the drive means 11, a worm 19 is interposed between the vertical bearings 15 with gaps, a vertical shaft 23 fitted in a spring seat 21 and a spring 22 and provided with a knob 20 at the upper end is fitted into a center hole of the worm 19 and the vertical bearings 15, and the worm 19 and the vertical shaft 23 are fixed. Horizontal shafts 24 are rotatably fitted into the respective horizontal bearings 16, sector gears 25 are fitted on the respective horizontal shafts 24 and fixed such that the sector gears 25 mesh with the worm 19, rear extension parts of the horizontal shafts 24 are folded back to form roller shafts 27, and rollers 28 are rotatably fitted on the respective shafts 27. |
