| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a scroll member that can avoid concentration of stress at the root of a stepped part. <P>SOLUTION: A turning scroll 20 includes: an end plate 21; a spiral lap 22 mounted upright on one side surface of the end plate 21 and extending from the center side toward the outer peripheral end side; a front end side stepped part 62 provided on the front end side of the lap 22 and whose center side is lower than the outer peripheral end side; and a base end side stepped part 70 provided on the side of one side surface of the lap 22 and whose center side is higher than the outer peripheral end side. A thinning part 66 is provided in a predetermined engagement area from an engagement starting position 65 of the lap 22 in one or both of the front end side stepped part 62 and the base end side stepped part 70. <P>COPYRIGHT: (C)2013,JPO&INPIT |
