BUTTON AND UPPER DIE FOR ATTACHING BUTTON

摘要

A button is provided with: a button body (20) which is disposed on a first main surface (1a) of a sheet (1) and is provided with an opening (24A, 24B) in the first main surface (1a), the sheet (1) having the first main surface (1a) and a second main surface (1b) opposite the first main surface (1a); and an attachment member (30) which is provided with a base section (31) disposed on the second main surface (1b) and also with a shaft section (32) protruding from the base section (31), passing through the opening (24A, 24B) from the second main surface (1b), and penetrating through to the first main surface (1a) side. The end section (32a, 32b) of the shaft section (32) is provided with a plate-like base section (321a) disposed on the button body (20) so as to cover the opening (24A, 24B), and also with ribs (322a) formed on the surface of the base section (321a) so as to be integral therewith and extending radially to the outer peripheral direction from the center of the base section (321a).