| 摘要 |
PROBLEM TO BE SOLVED: To improve durability of a scroll compressor by smoothly rotating a main shaft by enhancing concentricity of a bearing part of a main frame and a bearing part of a sub-frame for respectively journaling an upper part and a lower part of the main shaft. SOLUTION: A cylindrical upper extension part 6b having a lower end surface for abutting to an upper surface of a stator 11 is formed on the outer peripheral edge of the main frame 6 so as to extend downward, and a plurality of inserting holes 6c and a screw inserting hole 6d continuing with the inserting holes 6c are bored on a concentric circle. Similarly, a cylindrical lower extension part 12b having an upper end surface for abutting to an under surface of the stator 11 is formed on the outer peripheral edge of the sub-frame 12 so as to extend upward, and a plurality of inserting holes 12c and a screw inserting hole 12d continuing with the inserting holes 12c are bored in a concentric circle. COPYRIGHT: (C)2004,JPO
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