Method for Mounting Male Snap Button, Male Snap Button, Male Snap Button Structure, Method for Mounting Female Snap Button, Female Snap Button, and Female Snap Button Structure

Abstract

In a male or female snap button including a base and a mounting opening, a cylindrical protrusion is provided around the mounting opening. When the male or female snap button is being mounted to a fabric, after a post of a button fastener has passed through the fabric and then the mounting opening, the post is swaged by an upper die. At this time, the protrusion of the male or female snap is crushed between the post and the base. Thereby, a part of a load as imposed on the male or female snap button can be absorbed by the deformation of the protrusion.

1 . A method for mounting a male snap button to a fabric using a button fastener having a post, the male snap button comprising an almost disk-like base, a projection projecting from the base to engage with a projection-receiving space of a female snap button, a mounting opening formed in a center area of the base, and a cylindrical protrusion protruding around the mounting opening of the base, the method comprising the steps of:
 passing the post of the button fastener through the fabric and then the mounting opening of the male snap button; and   swaging the post, which has passed through the fabric and the mounting opening, on the base while compressing the protrusion between the post as being swaged and the base.   
     
     
         2 . A male snap button, which includes an almost disk-like base, a projection projecting from the base to engage with a projection-receiving space of a female snap button, a mounting opening formed in a center area of the base to pass a post of a button fastener therethrough, the male snap button being to be mounted to a fabric by swaging the post on the base of the male snap button after the post has passed through the fabric and then the mounting opening,
 wherein the male snap button includes a cylindrical protrusion protruding around the mounting opening of the base, the protrusion being to be deformed together with the post as the post is being swaged.   
     
     
         3 . A male snap button structure comprising a male snap button and a button fastener for use in mounting the male snap button to a fabric,
 wherein the male snap button comprises an almost disk-like base, a projection projecting from the base to engage with a projection-receiving space of a female snap button, a mounting opening formed in a center area of the base, and a cylindrical protrusion protruding around the mounting opening of the base,   wherein the button fastener comprises a base and a post projecting from the base, the post being to be swaged on the base of the male snap button after the post has passed through the fabric and then the mounting opening at the time of mounting the male snap button to the fabric,   wherein, in a state where the post is swaged, the protrusion is compressed between the swaged post and the base.   
     
     
         4 . A method for mounting a female snap button to a fabric using a button fastener having a post, the female snap button comprising an almost disk-like base, a periphery side projecting from the base and defining a projection-receiving space to receive a projection of a male snap button, a mounting opening formed in a center area of the base, and a cylindrical protrusion protruding around the mounting opening of the base, the method comprising the steps of:
 passing the post of the button fastener through the fabric and then the mounting opening of the female snap button; and   swaging the post, which has passed through the fabric and the mounting opening, on the base while compressing the protrusion between the post as being swaged and the base.   
     
     
         5 . A female snap button, which includes an almost disk-like base, a periphery side projecting from the base and defining a projection-receiving space to receive a projection of a male snap button, a mounting opening formed in a center area of the base to pass a post of a button fastener therethrough, the female snap button being to be mounted to a fabric by swaging the post on the base after the post has passed through the fabric and then the mounting opening,
 wherein the female snap button includes a cylindrical protrusion protruding around the mounting opening of the base, the protrusion being to be deformed together with the post as the post is being swaged.   
     
     
         6 . A female snap button structure comprising a female snap button and a button fastener for use in mounting the female snap button to a fabric,
 wherein the female snap button comprises an almost disk-like base, a periphery side projecting from the base and defining a projection-receiving space to receive a projection of a male snap button, a mounting opening formed in a center area of the base, and a cylindrical protrusion protruding around the mounting opening of the base,   wherein the button fastener comprises a base and a post projecting from the base, the post being to be swaged on the base of the female snap button after the post has passed through the fabric and then the mounting opening at the time of mounting the female snap button to the fabric,   wherein, in a state where the post is swaged, the protrusion is compressed between the swaged post and the base.