Patent ID: 7386921

Claim:
A slider for a concealed slide fastener, the slider engaging/disengaging fastener elements of a pair of fastener stringers in which side edges opposing each other of fastener tapes are bent and fixed into a U shape and the fastener elements are attached along bent edges of the side edges, the slider includes: a lower plate; a pair of flanges each having an inverted L shaped section, the flanges comprising right and left side wall portions erected along side edges of the lower plate in a right and left direction perpendicular to a sliding direction of the slider and right and left upper plate portions extending from top ends of the right and left side wall portions in a direction of approaching each other; a diamond erected from a central portion in a right and left direction near a shoulder mouth of the lower plate so as to be directed to a gap between the right and left upper plate portions; and element guide portions expanded outwardly toward inside end faces of the right and left upper plate portions from an outer periphery of the diamond, and wherein front ends of the upper plate portions in an engagement direction of the fastener elements are extended forward, compared with front ends of the element guide portions.