| 摘要 |
PROBLEM TO BE SOLVED: To provide a farm implement hardly causing a bad state in the engagement between one engaging body and the other engaging body to enable power transmission to be carried out properly by both of the engaging bodies. SOLUTION: The farm implement 1 includes a center operation part 2 and right and left extended operation parts 3. The center operation part 2 includes the one-side rotatable engaging body 31 for power transmission, and the extended operation parts 3 have the other-side rotatable engaging bodies 32 for power transmission engaging with the one-side engaging body 31. The one-side engaging body 31 includes a plurality of engaging parts 43 arranged in the circumferential direction, and the other-side engaging body 32 includes a plurality of fitting-in parts 64 capable of fitting in the neighboring engaging parts 43 in the circumferential direction. When the fitting-in part 64 is fitted in the neighboring engaging parts 43, the fitting-in part 64 contacts with a power-transmitting plane 46 and an inclined surface 47 of the engaging part 43, and the space part 71 is left between the engaging parts 43 neighboring in the circumferential direction. COPYRIGHT: (C)2009,JPO&INPIT
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