| 摘要 |
PROBLEM TO BE SOLVED: To dissolve the inconvenience that when a traveling vehicle is moved backward in turning, a lug plate part of the lug part runs into a plow sole of the paddy field in a state having a rake angle, easily imparts damage to the plow sole, generates excessive retreating force by a biting action, causes lift of the vehicle body, and makes steering operation difficult. SOLUTION: The working machine for paddy field is composed of a pair of auxiliary tools 4 which are disposed on both right and left sides of a rim part S1 of a paddy field wheel S having the lug part 2 and a mounting mechanism 5 which can mount the auxiliary tools to the rim part of the paddy field wheel. A plurality of auxiliary tools for a paddy field wheel are mounted to the rim part of the paddy field wheel of a riding type rice transplanter by the mounting mechanism 5 with leaving a space between the lug plates of the lug part, and a pair of auxiliary bodies whose bottom surfaces are formed in an approximate spherical shape are mounted on both right and left sides of the rim part of the paddy field wheel. When the working machine for paddy field is moved backward in turning in this state, the lug plate part of the lug part runs into the plow sole underneath the water surface of the paddy field in the state having the rake angle. However, the pair of auxiliary bodies abut to the bottom surface of the plow sole, the lug plate part makes a stand against running into the underneath the bottom surface of the plow sole to prevent the lug part from imparting damage by running into the plow sole, to prevent the traveling vehicle body from lifting, and can improve the steering operability. COPYRIGHT: (C)2006,JPO&NCIPI
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