To eliminate problems that the size of a conventional type extendable discharging auger device is inevitably increased because an extendable drive device is arranged on the outside of a conveying cylinder to provide a constitution deteriorating appearance and a bending moment is generated and smooth extendable sliding cannot be carried out due to a constitution in which the push-pull driving power is transmitted from the extendable drive device located at a laterally distant position from the central part thereof through a connecting arm to the movable discharging cylinder.
This discharging auger device 2 is composed by freely slidably inserting and fitting a mobile discharging cylinder 6 having a grain discharging port 5 opened at the tip into a fixed conveying cylinder 4 having the base thereof connected to a grain elevator 3 in the discharging auger device 2 for carrying out grains stored in a grain tank 1. An extendable conveying screw 7 is internally installed in the mobile discharging cylinder 6 and a conveying screw 8 is fitted in the interior of the fixed conveying cylinder 4. An extendable drive device 9 for freely extendably moving the mobile discharging cylinder 6 relatively to the fixed conveying cylinder 4 is composed by internally installing the drive device 9 in the interior of the conveying screw 8 of the fixed conveying cylinder 4.
TAKEUCHI KENICHIRO
ICHIMARU TOMOYUKI
MIZUSHIMA ATSUSHI
TOYODA KAZUO
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