| 摘要 |
PURPOSE:To absorb precession when a guide plate is driven by a swash plate, by coupling a piston rod with a guide piston in a loose fit engagement, through the intermediary of slide plates having a low frictional coefficient. CONSTITUTION:A piston rod 20 at the lower end of a piston 11 is coupled with a guide piston 31 attached to a rod 14 moved up and down by a swash plate 16, at one end thereof. A piston cover 32 formed therein with a recess 33 is secured to the upper section of the guide piston 31, and a flange section 21 at the lower end of the piston rod 20 is fitted in the recess 33 through the intermediary of slide plates 34, 35 having a low friction coefficient. This coupling section has a sufficient gap, and therefore, precession which is generated when the guide piston 31 is driven by the swash plate is absorbed by the above- mentioned gap. |
