| 摘要 |
PROBLEM TO BE SOLVED: To provide a tank for bed soil and cover soil capable of feeding soil in a tank for bed soil or in a tank for cover soil in a uniform state to a bed soil machine or a soil coverer. SOLUTION: A columnar hopper (5) in which many draw holes (7) freely passing soil through the peripheral surface are installed is arranged in a standing condition and the soil is charged into the hopper (5). In this case, the lower part side of the tank (1) for bed soil or the tank (2) for cover soil is preferably formed into a funnel-like shape in which the cross section of the lower part is tapered in the lower direction and the hopper (5) is preferably arranged in a standing state from the upper part of the tank (1) or (2) to the lower part of the tank (1) or (2). The lower part of the hopper is narrowed down and formed in a inverted trapezoid when viewed from the side and the lower part of the hopper (5) is brought close to a dropping port (8) and these draw holes (7) are arranged in rows at intervals in vertical directions and the adjacent draw holes (7a) and (7b) are formed in a zigzag and further, a sensor (9) for detecting a flow out limit state of the soil from the hopper (5) is provided and charge of the soil is stopped by on of the sensor (9). COPYRIGHT: (C)2004,JPO
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