Closing-dedicated slider and opening and closing slider of resin film bag

Abstract

A closing slider 30 A for closing a zipper of a plastic bag, the zipper having a groove and a protrusion, which are mutually engageable with each other, provided on mutually opposite inner surfaces of flaps formed at an open portion of the plastic bag. The closing slider has a couple of side legs 31 located outside the flaps, and a center leg 35 located between the flaps and having a length not reaching the zipper. Side portions of the side legs 31 are partly cut off 31 a , and thereby, a side portion of the center leg is exposed 35 a . Slits may be made in a top of the slider in such a way to extend to a side of the slider, so that the flaps can be inserted between the center leg and the respective side legs through the slits.

1 . A closing slider for closing a zipper of a plastic bag, the zipper comprising a groove and a protrusion, which are mutually engageable with each other, provided on mutually opposite inner surfaces of flaps formed at an open portion of the plastic bag, said closing slider comprising: 
 a couple of side legs located outside the flaps respectively;    a center leg located between the flaps and having a length not reaching the zipper; and    slits made in a top of the slider and extending to a side of the slider, so that the flaps can be inserted between the center leg and the respective side legs through the slits.    
     
     
         2 . A closing slider for closing a zipper of a plastic bag, the zipper comprising a groove and a protrusion, which are mutually engageable with each other, provided on mutually opposite inner surfaces of flaps formed at an open portion of the plastic bag, said closing slider comprising: 
 a couple of side legs located outside the flaps respectively; and    a center leg located between the flaps and having a length not reaching the zipper,    wherein a side portion of the center leg protrudes from the side legs and is exposed.    
     
     
         3 . A closing slider according to  claim 2 , wherein side portions of the side legs are partly cut off, so that a side portion of the center leg protrudes from the side legs and is exposed.  
     
     
         4 . A closing slider according to  claim 2 , wherein the center leg has a sideway protrusion, so that a side portion of the center leg protrudes from the side legs and is exposed.  
     
     
         5 . A closing slider according to clam  2 , wherein the center leg has a sideway protrusion, and side portions of the side legs are partly cut off, so that a side portion of the center leg protrudes from the side legs and is exposed.  
     
     
         6 . An opening/closing slider for opening and closing a zipper of a plastic bag, the zipper comprising a groove and a protrusion, which are mutually engageable with each other, provided on mutually opposite inner surfaces of flaps formed at an open portion of the plastic bag, said opening/closing slider comprising: 
 a couple of side legs located outside the flaps respectively; and    a center leg located between the flaps and having a length extending to an internal of the plastic bag over the zipper,    wherein side portions of the side legs are partly cut off, and the center leg has a sideway protrusion, so that a side portion of the center leg protrudes from the side legs and are exposed.