| 摘要 |
PROBLEM TO BE SOLVED: To provide a hermetic type compressor capable of making a large diameter connecting part between eccentric parts of a revolving shaft and increasing rigidity of the revolving shaft.SOLUTION: A revolving shaft 12 has eccentric parts 13, 14 positioned in the first and second cylinders; and an inter-eccentric connecting part 47 positioned between the eccentric parts. A partition plate 18 connecting several divided partition plates 18b, 18c is installed at an outer peripheral part of the inter-eccentric connecting member and the partition plate is formed with an insertion part 48 through which the inter-eccentric connecting part is inserted and passed. Under an assumption that a radial size of the eccentric part is "Rc", an inner diameter size of the insertion and passing part is "Dp", and an eccentric amount from the center of revolution of the revolving shaft to the center of the eccentric part is "e", the inter-eccentric connecting part is formed into a column-like shape of which radial size "Rj" is larger than "Dp-Rc-e" and smaller than "Dp/2". At the outer circumferential part of the inter-eccentric connecting part and at a location oppositely facing against the eccentric parts is formed a relief part 52 of which shape is not expanded out of the eccentric part in an outer peripheral direction and in which an axial size of the revolving shaft is smaller than a thickness size of the partition plate. |
