SLIDER FOR CONCEALED SLIDE FASTENER

The purpose of the present invention is to minimize damage to a pair of cloths as much as possible by locking front and back positions of a body when a puller is in a folded down position, and by releasing the lock when the puller is in an upright position. The slider for a concealed slide fastener according to the present invention is provided with a body, a puller, and a lock member. The body is provided with: a lower wing plate; an upper wing plate; a guide column; a pair of lateral plates that protrude upward from the right and left sides of the lower wing plate; a pair of flanges that extend inward on the right and left from respective upper ends of the pair of lateral plates; and a raised part that rises upward from the upper wing plate. The body and the lock member operate in conjunction to form a puller attachment part. The puller attachment part is provided with a shaft hole that penetrates the puller attachment part in the right-left direction. The shaft hole has an undersurface that encompasses the upper surface of the raised part and that is positioned higher than the upper surfaces of the pair of flanges. Formed in a vertical space between the puller in a backward-folded position and the pair of flanges are a pair of cloth accommodation spaces that are for accommodating the pair of cloths fixed on top of a pair of tapes and that are partitioned into left and right by the raised part.