| 摘要 |
To provide a scroll member that can prevent stress concentration on a base of a step portion. In an orbiting scroll 20 including: an end plate 21; a spiral lap 22 standing on one side surface of the end plate 21, and extending from a center side to an outer peripheral end side; a top end side step portion 62 provided on a top end side of the lap 22, the center side of the top end side step portion 62 being lower than the outer peripheral end side of the top end side step portion 62; and a base end side step portion 70 provided on a one side surface of the lap 22, the center side of the base end side step portion 70 being higher than the outer peripheral end side of the base end side step portion 70, a thinned portion 66 is provided in a predetermined engagement range from an engagement start position 65 of the laps 22 in one or both of the top end side step portion 62 and the base end side step portion 70. |
