| 摘要 |
PROBLEM TO BE SOLVED: To provide a selector having a constitution for increasing a wind velocity along a flight route so that a resin which is a selection object does not receive air resistance.SOLUTION: A selector includes on a conveyor tip part 4, a first ventilation part 6 for generating a first air flow 9 having a wind velocity agreeing with conveyance velocity of the conveyor toward a flying-out direction of a selection object 2, current plates 7A, 7B, 7C arranged along a flight route T of the selection object, and a second ventilation part 10 for generating a second air flow 11 toward the flight route from a lower part of the flight route.SELECTED DRAWING: Figure 1A |
