| 摘要 |
<p>PURPOSE:To minimize the radial center slippage and radial backlash value of a swash, by equating an internal form of a through hole in the swash plate with a hole form to be formed in a boss part at the time of rotating and shifting from the maximum to the minimum of a swash tilt angle. CONSTITUTION:A swash plate 5 makes a driving shaft 3 pierce into a through hole 55, and it is pivotally attached to this driving shaft 3. At this time, an inner circumferential surface of this through hole 55 and the driving shaft 3 are made partially contact with each other and the swash plate 5 varies a tilt angle while receiving some regulation in the radial direction. And, the through hole 55 consists of a front side through hole (at the cylinder side) being crossed so as to comprise a supporting point (a rocking center 61 at a time when the swash plate 5 is tilted at an angle just in the midway between the maximum tilt angle and the minimum one) of the swash plate 5 in the crossed surface. In addition, this through hole 55 is made into such a from as conically opened toward an opening so as make the driving shaft 3 rotatively shiftable within the range of specific tilt angles (maximum and minimum tilt angles) to the axial center of a boss part 52, with this supporting point as the rotational center. Therefore, the radial center slippage and radial backlash value of the swash plate are minimized.</p> |
