KNAPP ELLER BESLAG BESTAAENDE AV ET TAPPFORMET ELEMENT OG ET FATNINGSELEMENT

摘要

Buttons, especially for workmen's and leisure clothing include riveted to the fabric; a button thus including a male portion and a female portion. The riveting requires a hole being punched in the fabric, and the two portions of the button must be designed in such a manner that they are securely retained. By manufacturing the portions of a material having high frictional properties and shaping and selecting the dimensions of the stud of the male part and the mating bore of the female portion with a negative clearance, not only a secure retention, but also an ability of "self punching" the necessary hole in the fabric is obtained. For use with heavier fabric the female portion may be reinforced with a metal lining.