| 摘要 |
PROBLEM TO BE SOLVED: To simply mount and demount each auxiliary wheel from a tillage shaft of a walking type tending working machine. SOLUTION: A slot in a circular arc shape with the tillage shaft as the center is formed in an end tillage tine positioned on the outermost side of the tillage shaft of a base of a machine body. The auxiliary wheel having a larger diameter than the radius of rotation of the tillage tine is provided with each connecting pin shorter than the length of the axle thereof to form the head of the connecting pin larger than the diameter of the shaft part thereof. The axle of the auxiliary wheel is inserted into a mounting hole of the tillage shaft. The head of the connecting pin is inserted through an inserting hole having a larger diameter than the width of the slot formed in a part of the slot. In this state, the auxiliary wheel is turned relatively to the tillage shaft to mount the connecting pin in the terminal end of the slot. In the process, the connecting pin is installed in the central disk on the lateral face of the auxiliary wheel, and the distance between the head of the connecting pin and the central disk is formed into the same extent as the plate thickness near the slot of the end tillage tine to nip the end tillage tine from the inside and outside with the connecting pin and the central disk. Thereby, the mounting is ensured. COPYRIGHT: (C)2011,JPO&INPIT
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