| 摘要 |
PURPOSE:To prevent pulverulent bodies and like from escaping with no guide member arranged enabling simplified structure to be practically employed by locating the slit of a hose outside the radius of a curvature due to a hose bend, that is, the center line of the hose is a hose conveyor for pulverulent bodies. CONSTITUTION:A slit 3 of a hose 2 should be located outside the radius of curvature in regard to the neutral line 4 of the bending of the hose 2 when the hose 2 is engaged with a pully 1. This configuration allows the slit 3 to be subjected to a tension force spontaneously permitting said slit 3 to be closed. Accordingly, this prevents the pulverulent bodies from escaping with no particular guide provided enabling a simple structure to be employed.
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