Patent ID: 8683660

Claim:
A snap button comprising a pair of a male snap and a female snap, in which a projection projecting from a base of the male snap is to be coupled to and removed from a projection-receiving space of the female snap, the periphery of the projection being circular, and the periphery of the projection-receiving space being circular, wherein the base of the male snap includes an annular male-side engagement part in a radially outward area from the projection and on a projection-projecting side of the base, the male-side engagement part having thereon a plurality of bumps and/or a plurality of dips arranged in a circumferential direction, wherein the female snap includes an annular female-side engagement part in a radially outward area from the projection-receiving space and on a side facing the male snap at the time of the projection being coupled to the projection-receiving space, the female-side engagement part having thereon a plurality of dips and/or a plurality of bumps arranged in the circumferential direction, and wherein when the projection of the male snap is coupled to the projection-receiving space of the female snap and an axis of the male snap and an axis of the female snap incline towards each other, a portion of the male-side engagement part, including the bumps and/or dips of the portion of the male-side engagement part engage with a portion of the female-side engagement part, including the dips and/or bumps of the portion of the female-side engagement part, along the circumferential direction.