| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a walking-type sprayer enabling a relevant operator's burden to be mitigated in conducting a ridge-substitution operation. Ž<P>SOLUTION: The walking-type sprayer 1 includes a machine body 2, a main wheel 3 and an auxiliary wheel 4 installed on the front and rear of the machine body 2 respectively and traveling between ridges W, auxiliary wheels 5 and 5 supported on the machine body 2 and traveling between other ridges W different from the above ridges W in which the main wheel 3 travels, a handle 6 set projectedly from the machine body 2 rearward, and a spraying unit 7 loaded on the machine body 2. In the walking-type sprayer, all of the auxiliary wheels 4, 5 and 5 are movable between active positions P1 in contact with the ground together with the main wheel 3 and positions P2 retreated to relatively higher positions than the active positions P1 and are fixable at the active positions P1 and the retreat positions P2 respectively, and the center-of-gravity position of the sprayer in the condition that all of the auxiliary wheels 4, 5 and 5 are moved to the retreat positions P2 is situated at relatively before the center-of-gravity position in the condition that all of the auxiliary wheels 4, 5 and 5 are moved to the active positions P1 and relatively on the main wheel 3 side. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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