| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation preventing mechanism which has high reliability of low noise/high bending rigidity resistance and to provide a scroll compressor using the rotation preventing mechanism.SOLUTION: A pair of key groove parts 13 are disposed on a surface of an Oldham's ring 12 and a pair of key parts 15 which are fit slidably to the pair of key groove parts 13 of the surface of the Oldham's ring 12 are disposed on a back surface 17 of a turning mirror plate 8. Thereby, since a recessed part of the key groove part is arranged to be shorter in the sliding direction than a protrusion part of the key part, the outside diameter of the turning mirror plate, therefore, gets to be relatively small, the weight of a turning scroll is reduced, vibration and noise is reduced, the upsetting of the turning scroll is reduced. Further, since there is no recessed part, the bending rigidity is not deteriorated, deformation during working and deformation during operation can be suppressed small and, as the result, the scroll compressor having high performance and high reliability can be obtained. |
