Hair pin

Abstract

The hair pin is characterized in that an extended protrusion piece with a certain width is formed along both the edge sides of a hair pin body, and the extended protrusion piece is rolled inwardly for thereby forming reinforced parts, and a cut-away groove part or a concave groove part is formed at regular intervals along the inner surfaces of the reinforced parts, and a compression member is formed by forming an inwardly curved part at both sides or by forming an inclined part in an inner surface of the inwardly curved part.

1 . In a hair pin which consists of a metallic and elastic hair pin body  1  formed in an arc plate shape, and an elastic metallic compression member  3  which is engaged to a locking part  1   c  and is formed in an arc plate shape and is more curved than a hair pin body, with the locking part being formed of one end hinged to a hinge part  1   b  formed in one side of the hair pin body and the other end being formed in another side of the hair pin body, so the elastic metallic compression member is detachable from the locking part, a hair pin characterized in that an extended protrusion piece with a certain width is formed along both the edge sides of a hair pin body  1 , and the extended protrusion piece is rolled inwardly for thereby forming reinforced parts  2  and  2 ′, and a cut-away groove part  2   a  or a concave groove part  2   b  is formed at regular intervals along the inner surfaces of the reinforced parts  2  and  2 ′, and a compression member  3  is formed by forming an inwardly curved part  3   a  at both sides or by forming an inclined part  3   b  in an inner surface of the inwardly curved part. 
     
     
         2 . The hair pin of  claim 1 , wherein said reinforcing part  2  is configured in such a manner that the inner side end  20  of the extended protrusion piece closely contacts with an inner surface of the hair pin body. 
     
     
         3 . The hair pin of  claim 1 , wherein said reinforced part  2 ′ is characterized in that an inner side end  20  of the curved part is inwardly rolled toward an end of the hair pin body for thereby forming a space  2   c  in an inner side of the same.