| 摘要 |
PURPOSE:To contrive to improve power transfer efficiency by restraining a force generated in a direction crossing at the right angle to the direction of movement to the minimum even if there is some discrepancy between shafts of a driving member and a driven member. CONSTITUTION:A compression power transfer member 6 and a tension power transfer member 7 are provided as a power transfer member which connects a driving member 3 to a driven member 4. For this reason, even if there is a discrepancy between shaft centers of the guide faces 1a, 2a in rectilinear motion guide members 1, 2 and/or a discrepancy between shaft centers of a driving member 3 and a driven member 4, a large force in a direction crossing at the right angle to a shaft is not generated between the rectilinear motion guide member 1 and the driving member 3 and between the rectilinear motion guide member 2 and the driving member 4. Therefore a frictional resistance being generated when the driven member 4 performs a rectilinear movement by the driving member 3 is small and high efficiency in power transfer can be gotten.
|
