Slide Fastener and Slider for Slide Fastener

A slide fastener comprising:

• left and right fastener tapes;
• left and right coil-shaped fastener elements which are attached onto side ends opposite to each other on the rear surfaces of the left and right fastener tapes, respectively;
• and
• a slider for engaging or separating the left and right coil-shaped fastener elements with or from each other,
• wherein the slider includes a slider body and a stopper mechanism for preventing the movement of the slider body, the slider body including an upper wing plate having a pawl hole, a lower wing plate and a guide post for connecting the upper and lower wing plates,
• wherein the slider body includes:
• two front openings which are open on the left and right sides of the guide post between the upper and lower wing plates and through which the left and right coil-shaped fastener elements in a separation state are passed, respectively;
• one back opening which is open on the side opposite to the guide post in the front-back direction and through which the left and right coil-shaped fastener elements in an engaged state are passed;
• and a Y-shaped element guide groove which is formed between the front openings and the back opening,
• wherein the stopper mechanism includes a locking pawl that can protrude to the element guide groove through the pawl hole of the upper wing plate,
• wherein the lower wing plate has a raised portion on its inner surface, the raised portion extending in the front-back direction from the guide post toward the back opening,
• wherein the raised portion includes:
• a first upper surface on the side of the guide post, the first upper surface being horizontal and the highest in the raised portion;
• and a second upper surface on the side of the back opening, which is lower than the first upper surface, and
• wherein the locking pawl can engage the coil-shaped fastener elements on the first upper surface in a state where the locking pawl protrudes to the element guide groove.