Slide fastener

Abstract

A slide fastener includes: a first slide fastener member and a second slide fastener member. The first slide fastener member includes a first cloth tape, a first element row, a slider, and a retainer pin member. The second slide fastener member includes a second cloth tape, a second element row, and a separable pin member. When the retainer pin member and the separable pin member are engaged with each other, a slider accommodating area is formed. An inclined protrusion is provided on a retainer pin arm. When the retainer pin member and the separable pin member are engaged with each other and the slider is located in the slider accommodating area and abuts against the retainer pin main body, the inclined protrusion abuts against an outer peripheral side of the slider and drives the slider to be inclined toward the separable pin member.

What is claimed is: 
     
         1 . A slide fastener, comprising:
 a first slide fastener member and a second slide fastener member that are separable, wherein   the first slide fastener member includes a first cloth tape, a first element row fixed on an inner edge of the first cloth tape, a slider movably attached to the first element row in a length direction of the slide fastener, and a retainer pin member fixed on the inner edge of the first cloth tape and disposed at an end of the first element row, the slider includes an upper blade and a lower blade disposed facing each other and connected to each other along a thickness direction of the slide fastener, and the upper blade and the lower blade are respectively provided with an upper flange and a lower flange protruding toward each other, and the retainer pin member includes a retainer pin main body and a retainer pin arm extending from the retainer pin main body toward the first element row,   the second slide fastener member includes a second cloth tape, a second element row fixed on an inner edge of the second cloth tape, and a separable pin member fixed on the inner edge of the second cloth tape and disposed at an end of the second element row, and the separable pin member includes a separable pin main body, a separable pin arm extending from the separable pin main body toward the second element row, and a half element fixed to the separable pin main body and adjacent to the second element row,   the retainer pin member and the separable pin member are rotatably engageable and are separable with respect to each other, and when the retainer pin member and the separable pin member are engaged with each other, a slider accommodating area which is enclosed by the retainer pin main body, the retainer pin arm and the separable pin arm and which is capable of accommodating the slider, is formed,   an inclined protrusion protruding toward the slider accommodating area is provided on a side surface of the retainer pin arm facing the slider accommodating area, a flange passage is formed between the half element and the separable pin arm, and the flange passage is a part of the slider accommodating area and allows the upper flange and the lower flange of the slider on a side of the separable pin arm to pass therethrough, and   when the retainer pin member and the separable pin member are engaged with each other and the slider is located in the slider accommodating area and abuts against the retainer pin main body, the inclined protrusion abuts against an outer peripheral side of the slider and drives the slider to be inclined toward the separable pin member.   
     
     
         2 . The slide fastener according to  claim 1 , wherein
 a recess recessed away from the flange passage is provided at an outer periphery of one end of the half element away from the second element row, and the recess is in communication with the flange passage, and   when the retainer pin member and the separable pin member are engaged with each other and the slider is located in the slider accommodating area and abuts against the retainer pin main body, the upper flange and/or the lower flange and the recess are disposed in sequence along a moving direction of the slider when the slide fastener is closed, and an end of the upper flange and/or an end of the lower flange is capable of abutting against the recess.   
     
     
         3 . The slide fastener according to  claim 2 , wherein
 the half element has the recess on each of both a front surface and a back surface thereof, the recess on the front surface of the half element is capable of abutting against the end of the upper flange, and the recess on the back surface of the half element is capable of abutting against the end of the lower flange.   
     
     
         4 . The slide fastener according to  claim 2 , wherein
 an outer peripheral contour of the recess includes a plurality of recessed inclined surfaces, and the plurality of recessed inclined surfaces are sequentially connected along the length direction of the slide fastener.   
     
     
         5 . The slide fastener according to  claim 4 , wherein
 slopes of the plurality of recessed inclined surfaces with respect to a central axis extending in the length direction of the slide fastener gradually increase.   
     
     
         6 . The slide fastener according to  claim 4 , wherein
 three of the recessed inclined surfaces are provided, the three of recessed inclined surfaces are a first inclined surface, a second inclined surface and a third inclined surface sequentially connected along the length direction of the slide fastener, respectively, and the first inclined surface and an outer peripheral surface of the half element, as well as the third inclined surface and the outer peripheral surface of the half element are connected via arc segments.   
     
     
         7 . The slide fastener according to  claim 1 , wherein
 when the retainer pin member and the separable pin member are engaged with each other and the slider is located in the slider accommodating area and abuts against the retainer pin main body, an inclination angle α at which the inclined protrusion drives the slider to be inclined toward the separable pin member is 20° to 25°.   
     
     
         8 . The slide fastener according to  claim 1 , wherein
 when the retainer pin member and the separable pin member are engaged with each other and the slider is located in the slider accommodating area and abuts against the retainer pin main body, a gap is formed between the slider and a part of the retainer pin arm other than the inclined protrusion.   
     
     
         9 . The slide fastener according to  claim 1 , wherein
 the retainer pin member further includes a first magnet fixed in the retainer pin main body, the separable pin member further includes a second magnet fixed in the separable pin main body, and the first magnet and the second magnet are configured to generate a magnetic attraction force that enables the retainer pin member and the separable pin member to rotate toward each other.   
     
     
         10 . The slide fastener according to  claim 1 , wherein
 a reinforcing rib is fixed on a surface of the upper blade on a side of the separable pin member.