Patent attributes
A frame (10) including lateral bars (11, 12) and vertical bars (13); a first belt holding section (20) provided on a lateral bar side of the frame, into which a length adjustable belt is inserted to be held; a second belt holding section (30) having a belt winding bar (31) around which a length adjustable belt (2) is wound and an abutment bar (33) for bending a folded portion of the length adjustable belt; and a finger-placing section (40) provided on the other lateral bar side of the abutment bar are provided. The finger-placing section has a through-hole (41) that is provided with a guide section (a curved surface 12A) for guiding fingers.