| 摘要 |
PURPOSE:To surely and easily true up parts, by providing a protrusion having an arc-shaped face, in the wall of a spiral conveyance passage provided on a vessel which is torsionally vibrated and by providing a stepped recess on the conveyance passage under the protrusion. CONSTITUTION:When a bowl 1 is torsionally vibrated by a driver, numerous parts (m) put at the bottom 9 of the bowl enter into the inlet side 10a of a spiral conveyance passage 10 provided on the inside surface of the bowl and move upwards so that the parts are put out in a trued-up state from the outlet side 10b. The conveyance passage 10 is provided with a section 13 for conveying the parts in a single row and layer. In the section 13, an arc-shaped member 14 is fitted in th wall of the upper part of the conveyance passage 10 and a stepped recess 11 having steps 11a, 11b is provided on the passage under the arc-shaped member. A gap, through which only one of the parts can pass at a time, is defined between the arc-shaped member 14 and the conveyance passage 10. |
