| 摘要 |
PROBLEM TO BE SOLVED: To efficiently convey objects to be conveyed, different in size (for example, diameter), in the same conveying path. SOLUTION: In a screw rotary body, a screw blade 922 spirally extended on an outer periphery of a rotary shaft 921 and having an inclined surface 922c inclining toward the outside in a radial direction is provided. The first guide slope 922a extended along the screw formed by the screw blade 922 and the second guide slope 922b extended along the screw formed by the screw blade 922 and having a different cross-sectional shape from the first guide slope 922a are formed on the inclined surface 922c. COPYRIGHT: (C)2011,JPO&INPIT
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