Machine for attaching buttons having shanks to an article in a correctly buttoned condition
AssigneeFirma Schaeffer-Homberg GmbH
InventorHerbert Birkhofer
Life of this patent
Estimating the term…
Abstract
A machine for the attachment of buttons provided with shanks to articles provided with buttonholes, having a lower tool which holds a button upper part and moves relative to the lower tool towards the latter. A device is disposed in front of the upper tool for widening the buttonhole to approximately the clear width of the shank to be seated through the buttonhole onto the underlying layer of material.
Claims13
In a machine for the attachment of buttons provided with shanks, respectively, to articles and having a lower tool which supports a button lower part and an upper tool which holds a button upper part in alignment with the button lower part, said upper tool being movable relative to the lower tool towards the lower part, the improvement comprising
- means disposed in front of said upper tool for widening a buttonhole in a first layer of material to approximately a width of said shank to be seated through the widened buttonhole onto an underlying layer of material to enable said button upper part and said button lower part to be engaged and secured to said underlying layer in alignment with said buttonhole.
Dependencies are inferred from the claim text.