PURPOSE: To enable to receive compressive reaction in a simple structure and in a stable condition by supporting the rotary swash plate so that the oscillating block is supported by an oscillating support part formed in a semicircular shape.
CONSTITUTION: A support post 19 is mounted on a driving shaft 17. In this support post, an oscillating support part 19B with a semicircular shape is formed in order to increase the contact surface. On the other hand, an oscillating block 20B which has the same concentric circular arc as the support part 19B is formed in a rotary swash plate 20. This oscillating block 20B is loosely fitted in the oscillating support part 19B so as to support the rotary swash plate 20 to be freely oscillated. And, it is so constituted that an oscillating plate 18 is fitted to this rotary swash plate 20 via a bearing 22, and each piston 16 is connected by means of this oscillating plate 18.
SUZUKI SHINICHI
TAKENAKA KENJI