Zipper Insertion-Pin Structure

Abstract

A zipper insertion-pin structure comprises a first insertion pin and a second insertion pin. The first insertion pin has a first slit on an external side thereof and a base on one side opposite to the external side. The base has a socket. The second insertion pin has a second slit on an external side thereof and can be inserted into the socket. Each of the first slit and the second slit has a plurality of teeth or gradually narrows toward the center thereof. The first insertion pin and the second insertion pin grip the tapes of a zipper with the biting force thereof.

What is claimed is: 
     
         1 . A zipper insertion-pin structure comprising
 a first insertion pin having a first slit on an external side thereof and a base on one side opposite to said external side, wherein said base has a socket; and   a second insertion pin having a second slit on an external side thereof and insertable into said socket,   
       wherein said first insertion pin and said second insertion pin respectively use said first slit and said second slit to grip two tapes. 
     
     
         2 . The zipper insertion-pin structure according to  claim 1 , wherein said first slit has a plurality of teeth. 
     
     
         3 . The zipper insertion-pin structure according to  claim 1 , wherein said second slit gradually narrows from two ends thereof toward a center thereof. 
     
     
         4 . The zipper insertion-pin structure according to  claim 2 , wherein said second slit gradually narrows from two ends thereof toward a center thereof. 
     
     
         5 . The zipper insertion-pin structure according to  claim 1 , wherein said second slit has a plurality of teeth. 
     
     
         6 . The zipper insertion-pin structure according to  claim 2 , wherein said second slit has a plurality of teeth. 
     
     
         7 . The zipper insertion-pin structure according to  claim 1 , wherein said base has two openings respectively on two sides thereof, and wherein said two tapes together with said first insertion pin and said second insertion pin are inserted into said base respectively through said two openings. 
     
     
         8 . The zipper insertion-pin structure according to  claim 1 , wherein said first insertion pin and said second insertion pin are respectively installed at bottoms of zipper teeth of said two tapes.