| 摘要 |
PURPOSE:To reduce vibration and noise and improve the wear-resistivity by forming a retainer out of foamed plastics, the retainer holding without contact with each other a plurality of balls which are put between both the back face of the mirror board of a turning scroll at the reverse side of the lap thereof and a block. CONSTITUTION:A scroll type compressor having a turning scroll 4 and a fixed scroll 5 which have involuted laps 4b and 5b standing upright on mirror board 4a and 5b, respectively, and are engaged with each other also has a self-turn preventing mechanism 6 which prevents the turning scroll 5 from turning of itself and has it make orbital action. A plurality of balls 15m are put between the mirror board 5a of the turning scroll 5 and a block 3 which the fixed scroll 4 is fixed, and are held turnably in respective retainer holes 16m of a retainer 16 so as not to contact with each other. In this case, the retainer 16 is made out of foamed plastics which has expansion ratio of 1.1-2.0 and is reinforced by adding glass fiber or carbon fiber. |
