| 摘要 |
PROBLEM TO BE SOLVED: To prevent the electric shock on an operator and an assisting worker by decreasing the electrostatic charge caused by the collision and contact of grains in the course of transportation. SOLUTION: A grain transporting pipe 1 transports grains supplied from a grain tank 2 to a grain discharging port 3 at the tip end of the pipe by a transporting air stream blown into the pipe and discharges the grains out of the farm machine. The grain transporting pipe 1 has a telescopically extensible double-pipe structure composed of a base transport pipe 1a and a tip transport pipe 1b overlapped with each other at the middle position of the grain transporting path. The grain transporting pipe 1 contains an inner hose 5 made of an antistatic material and inserted into the base transport pipe 1a and the tip transport pipe 1b in a manner following the extending and contracting motion of the base transporting pipe 1a and the tip transporting pipe 1b. COPYRIGHT: (C)2009,JPO&INPIT
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