| 摘要 |
PURPOSE:To enable engagement and disengagement of an inner race with an outer race and carry out power transmission from a tractor by rotation at an uniform speed, by providing an uniform velocity joint in a bending part on the side of a tractor and/or working machine. CONSTITUTION:An uniform velocity ball joint is provided in a bending part 13 on the side of a tractor and/or a bending part 15 on the side of a working machine. An inner race is engaged and disengaged from an outer race in the above-mentioned one or either of both uniform velocity joints. A slide transmission shaft 12 is contracted and the inner race of the uniform velocity ball joint is disengaged from the outer race. After completing connecting work of a working machine, the inner race may be engaged with the outer race.
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