. "B is a top plan view of a fixed scroll of a conventional scroll type fluid machine; FIGS. 4A to 4C show a movable scroll of the fluid machine according to the first embodiment, wherein FIG. 4A is a plan view when viewed from a left side, FIG. 4B is a cross sectional view taken along a line IVB-IVB in FIG. 4A, and FIG. 4C is a plan view when viewed from a right side; FIGS. 5A to 5C show a movable s" . . .