A thrust bearing mechanism receives thrust force which is an element force of a compression counter-force acting on a movable scroll member, and which is perpendicular to the orbital direction of the movable scroll member. The thrust bearing mechanism includes plural substantially cylindrically-shaped first and second rollers. The first roller rotates in one direction, and the second roller rotates perpendicularly to the first roller. Thus, the contact surface area of the rollers is larger than that in which spherical rollers receive the thrust force, thereby suppressing the compressor from being enlarged to accommodate increased thrust forces, and improving the reliability and durability of the compressor.