| 摘要 |
PURPOSE:To lubricate a thrust plate smoothly, by disposing the periphery of a thrust plate adjacent to the inside of a ring-shaped member of a restricting part turning by itself and permitting the plate to make a displacing movement substantially identical with the part so that lubricating oil is supplied to an engaging portion of a crank shaft and a turning spiral blade shaft. CONSTITUTION:A turning spiral blade part 9 revolves without making revolution by itself due to the revolution of a crank shaft 10. At the time, a restricting part 12 turning by itself slides in a radial direction and a thrust plate 14 having a periphery disposed adjacent to the inside of a ring-shaped member of the part 12 and making a displacing movement substantially identical with the part 12 slides in the inner circumference of the part 12 as the part 12 slides. Then, oil supplied to an engaging portion of a crank shaft 10 and a turning spiral blade shaft 9a is introduced to the peripheral direction of the part 12 by the revolution of the turning spiral blade part 9 to lubricate opposite surfaces of a thrust plate 14. As a result, the thrust plate 14 can be less worn. Further, since the thrust plate 14 is disposed at the inside of the restricting part turning by itself, a size of a compressor can be made smaller.
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