Method and apparatus for setting fastener elements into a blank

Details Method and apparatus for setting fastener elements into a blank Method and apparatus for setting fastener elements into a blank

1978-11-14

1981-03-17

Bell, Paul A.

Elongated-member-driving apparatus

With means to position 'mating-member' in alignment with driver

With means to form 'mating-member'

227 18, 227 20, 227 81, 227 85, 227 90, 227113, A41H 3904

Patent

active

042562503

ABSTRACT:
This relates to the production of folders such as those commonly used for binding loose sheets of paper into booklet form. There is provided a method and an apparatus for setting fastener elements, such as tangs and eyelets, into selected portions of a blank made of heavy paper or cardboard. The apparatus employs rotary die holding elements defining a nip or nips therebetween for receiving one or more portions of a paper blank, particularly a blank folded to a T-shaped configuration. The apparatus includes means for applying setting forces to the fastener elements during the very brief interval of time that the fastener elements are disposed in the nip or nips between the die holders. Radially movable dies are mounted in certain of the rotary holders and cam means are employed to apply momentary fastener element setting forces to the fasteners. These momentary setting forces are applied in such a way that crushing of the leading edge or edges of the fastener elements coming into the nip or nips between the rotary elements is substantially avoided. The apparatus is capable of operation in a very rapid manner with the tangs and eyelets being positionally matched in accurate fashion and securely installed.

REFERENCES:
patent: 510844 (1893-12-01), Crowell
patent: 527574 (1894-10-01), Wood
patent: 615253 (1898-12-01), Crowell
patent: 677711 (1901-07-01), Stapf
patent: 686738 (1901-11-01), Kaschenbach
patent: 2722000 (1955-11-01), Turrall
patent: 3200487 (1965-08-01), Fluke
patent: 3367550 (1968-02-01), Jezierski
patent: 3964663 (1976-06-01), Jureit et al.

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