To provide a self-propelled soil improving machine that appropriately selects quality improving earth and sands to be used according to their particle size, and a sieve used for the machine.
In this self-propelled soil improving machine that produces quality improving soil by mixing earth and sands supplied to the machine with soil quality improving agents, a sieve body 10 is provided at the upper part of a hopper to receive the earth and sands supplied. The sieve body 10 is provided with a lower grid 11b consisting of a plurality of bar-like members 20b arranged at fixed intervals in the direction of the sieve body 10, and with an upper grid 11a placed on the lower grid 11b and consisting of a plurality of bar-like members 20a with large vertical dimensions arranged at fixed intervals in the direction perpendicular to the above-mentioned direction, so that the grid 11a can crush clods contained in the earth and sands supplied to the machine and collide crushed clods against the lower grid 11b.
HASHIMOTO HISANORI
NAKANO MANABU
TAYAMA MINORU
TAKEUCHI HIROKI
| JPH05192641A | 1993-08-03 | |||
| JPS5816602A | 1983-01-31 | |||
| JP2001040698A | 2001-02-13 | |||
| JPH06502587A | 1994-03-24 |