| 摘要 |
PURPOSE:To prevent tapping noise from generating, by forming, in a holding means, a notch fitted onto the barrel section of a shoe. CONSTITUTION:Holding members 30 slide circumferentially with respect to a rocking plate 20. Each holding member 30 is fitted through its notch 30c onto the barrel section 29a of a shoe 29 to make the shoe 29 into closely contact with a sliding surface and as well to allow the shoe 29 to radially move. The shoes 29 rotate relatively to the rocking plate 20 while they freely oxcillate with different phases with respect to the swingable plate 20, and therefore, pistons 27 are stroked. Since the notch 30c of each holding member 30 is closely fitted onto the barrel section 29a of the associated shoe 29 with no gap, the holding member 30 moves at once in association with the motion of the shoe 29, and follows indepentently from other holding members 30, thereby no tapping sound comes about. |
