In a scroll compressor, a thrust ring is mounted between a movable-side flat plate part of a movable scroll and a housing. The items to be transmitted by the subscriber station are placed in a queue. The thread wiper is mounted sidewardly relative to the needle and includes a picker arm, that while in a retracted position, is disposed sidewardly relative to the needle and out of its path of travel. The sliding bars are respectively mounted on opposite sides of the hardware to fix the hardware on the brace, wherein the brace forms fixing structures corresponding to the sliding bars and the sliding bars being operable to slide in the brace, and engage and disengage with the brace via the fixing structures.