Patent ID: 7150080

Claim:
A concealed type slide fastener comprising: a pair of fastener tapes having their respective opposed longitudinal edges folded thereon so as to have a U-shape; two rows of fastener elements mounted on said opposed longitudinal folded edges; a top end stop mounted on the upper end of at least one fastener element row; a slider reciprocally movable along said fastener element rows, said slider having a slider body, a guidepost mounted on a middle and at a fore end of said slider body and a pair of channel-shaped side flanges formed one on each side thereof to define with said guide post a Y-shaped guide channel through which said fastener element rows run with the side flange disposed between the fastener elements and the tape, said guidepost having a sliding surface formed on each side thereof and an overhanging element-guiding portion extending from the upper end of said sliding surface; and means formed on a corner of said top end stop which faces upward toward a lower corner of said element-guiding portion when said top end stop comes into said guide channel and adapted for preventing contact between said element-guiding portion and said corner of said top end stop.