| 摘要 |
PROBLEM TO BE SOLVED: To form a compression mechanism unit low in cost, high in efficiency, low in noise, and excellent in reliability by precluding the lowering of a fastening force acting on a clearance between bolt fastening parts caused by the fastening of a plurality of bolts, reducing man-hours and the number of components, enhancing easiness in installation, and relieving fastening strain generated when the compression mechanism unit is assembled.SOLUTION: A screw fastening part 16 is provided in the neighborhood of a bore 8a and a periphery of a cylinder 8 and fastened to screw-fastening parts 17 and 18 formed on a main end plate 10 and an auxiliary end plate 11, whereby a compression mechanism unit is embodied which assures excellent installing easiness with no use of a plurality of bolts 15 and a relief of fastening strain. |
