Slide fastener slider and method for producing slide fastener slider

Abstract

A slider for a slide fastener includes: a metal slider body which includes an upper blade, a lower blade, and a connecting column connecting the upper blade and the lower blade at front sides thereof, a stringer passage which allows facing side edge portions of a pair of fastener stringers to pass therethrough being formed on an inner side of the slider body; and a component which is accommodated in the slider body. The slider body includes a recess which is recessed on a surface of the slider body and in which the component is accommodated, and a dedicated vent hole which allows ventilation between an outside of the slider body including the stringer passage, which is outside the slider body, and an inside of the recess.

1 . A slider for a slide fastener comprising:
 a metal slider body which includes an upper blade, a lower blade, and a connecting column connecting the upper blade and the lower blade at front sides thereof, a stringer passage which allows facing side edge portions of a pair of fastener stringers to pass therethrough being formed on an inner side of the slider body; and   a component which is accommodated in the slider body, wherein   the slider body includes a recess which is recessed on a surface of the slider body and in which the component is accommodated, and a dedicated vent hole which allows ventilation between an outside of the slider body including the stringer passage, which is outside the slider body, and an inside of the recess.   
     
     
         2 . The slider for the slide fastener according to  claim 1 , wherein
 the recess is formed at least in the upper blade among the upper blade and the connecting column.   
     
     
         3 . The slider for the slide fastener according to  claim 1 , wherein
 the vent hole penetrates in a front-rear direction.   
     
     
         4 . The slider for the slide fastener according to  claim 1 , wherein
 a vent hole outer portion of the vent hole which is on an outer portion side of the slider body is narrowed in diameter from an outer opening end toward an inner opening end of both ends of the vent hole.   
     
     
         5 . The slider for the slide fastener according to  claim 4 , wherein
 a vent hole inner portion of the vent hole which is on a side of the recess is narrowed in diameter from the inner opening end toward the outer opening end of the both ends of the vent hole.   
     
     
         6 . The slider for the slide fastener according to  claim 1 , wherein
 the recess includes a first recess formed on an upper surface of the upper blade, and a hole-shaped second recess which is in communication with an inside of the first recess and an inside of the vent hole and which has a boundary surface at a boundary with respect to the vent hole, and   the component includes a second component accommodated in the second recess, and a first component disposed in the first recess and holding the second component in the second recess.   
     
     
         7 . The slider for the slide fastener according to  claim 6 , further comprising:
 a pull holder which extends upward from the upper blade and is configured to hold a pull and which has a tip end portion facing the upper surface of the upper blade, in addition to the slider body and the components, wherein   the components include an elastic body as the second component and a deformation member as the first component which is configured to elastically deform the elastic body in response to an operation on the pull.   
     
     
         8 . The slider for the slide fastener according to  claim 7 , wherein
 the second recess is formed in a front portion of the slider body,   the deformation member is an opening and closing member which is attached to the first recess and is configured to open and close a gap formed between a tip end of the pull holder and the upper blade, and which is configured to be guided to be movable forward, and   the opening and closing member opens the gap and elastically deforms the elastic body at a front limit position, and closes the gap and is held by the upper blade at a rear limit position.   
     
     
         9 . The slider for the slide fastener according to  claim 1 , wherein
 a plating film is formed on the surface of the slider body and is formed on a surface of the vent hole over an entire length thereof in a vent direction.   
     
     
         10 . A method for manufacturing a slider for a slide fastener, comprising:
 a die casting step of manufacturing, by die casting, a metal slider body which includes an upper blade, a lower blade, and a connecting column connecting the upper blade and the lower blade at front sides thereof, a stringer passage which allows facing side edge portions of a pair of fastener stringers to pass therethrough being formed on an inner side of the slider body, and which includes a recess recessed on a surface of the slider body and accommodating a component; and   a hole forming step of forming a hole in a part which shapes the recess, so as to form a dedicated vent hole which allows ventilation between an outside of the slider body -including the stringer passage, which is outside the slider body-, and an inside of the recess.   
     
     
         11 . The method for manufacturing the slider for the slide fastener according to  claim 10 , wherein
 the recess of the slider body manufactured in the die casting step includes a recess main body in a constant state at a completion time point of the die casting step and at a completion time point of the hole forming step, and a non-penetrating hole portion which is recessed with respect to the recess main body in a non-penetrating state at the completion time point of the die casting step and which is obtained by thinning a part which shapes the recess main body, and   in the hole forming step, the non-penetrating hole portion is penetrated to form a part of the vent hole.   
     
     
         12 . The method for manufacturing the slider for the slide fastener according to  claim 11 , wherein
 a vent hole inner portion of the vent hole which is on a side of the recess corresponds to the non-penetrating hole portion at the completion time point of the die casting step, and is narrowed in diameter from an inner opening end toward an outer opening end of both ends of the vent hole.   
     
     
         13 . The method for manufacturing the slider for the slide fastener according to  claim 11 , wherein
 the hole forming step is press processing using a punch whose tip portion has a tapered conical shape, and   a vent hole outer portion of the vent hole which is on an outer portion side of the slider body is narrowed in diameter from an outer opening end toward an inner opening end of both ends of the vent hole.   
     
     
         14 . The method for manufacturing the slider for the slide fastener according to  claim 11 , further comprising:
 a wet plating step of performing wet plating on the slider body after the hole forming step.