PURPOSE: To weave a tubular satin fabric by vertically moving a specific heald with a rotary claw attached to a mobile member arranged in the arranging direction along each heald.

CONSTITUTION: A plurality of sliders 4 are arranged in the arranging direction of each heald 1 and vertically slid along a guide rod 5. A number of rotary claws 10 are attached to each slider 4 at a position corresponding to each heald 1 with rotary phases staggered by definite angle from each other. A specific heald is exclusively lifted or lowered by a rotary claw positioned at a specific angle according to the vertical motion of each slider.