Ykk Corporation

Kazunori Somai

Daisuke Hayashi

Kota Kanno

Nariko Kubota

Kohei Iwata

Provided is a snap button including a male snap button () made of metal and a female snap button (). The male snap button () includes a base portion () and an engaging protuberance () which projects from the base portion (). The female snap button () includes: a ring member () made of soft resin, defining an engagement space () which detachably accepts the engaging protuberance (); and a female snap body () made of metal, accommodating the ring member (). The ring member () is provided with a protruding portion () which projects further out to one side than an end (), on said one side, of the female snap body () facing the male snap button () in an axial direction, and which is provided in circumferential direction.

Snap button and female snap button

Provided is a male snap button () including a metal male snap body (), and a fixing member () for fixing the male snap body () to a fabric (). The male snap body () includes: a male-side engagement part () in annular shape capable of being removably engaged with a female-side engagement part () of a female snap button (); and multiple claws (). The male-side engagement part () defines an opening () that exposes the fabric () inside in a radial direction thereof. A diameter (D) of the opening () is greater than a length (W) in the radial direction from an outside edge of the opening () in the radial direction to an outside edge of the male snap body () in the radial direction. The fixing member () includes claw accommodation parts () to receive the claws ().

Growing community of inventors

Tokyo, Japan

Kazunori Somai