Punch

Details Punch Punch

1987-05-05

1988-07-19

Kazenske, E. R.

Cutting

Means to drive or to guide tool

Constantly urged tool or tool support

83618, 83633, 83698, B26D 508

Patent

active

047577339

ABSTRACT:
A punch main body, consisting of a base portion and a support portion, is formed from one or two extruded profiles, for example of aluminium. Respective end plates, for example of moulded plastics, are preferably fitted to the ends of the profile (5) to maintain overall strength and rigidity so that the thickness of the extruded material can be reduced. A pivotal press bar, which may also be an extruded profile, is effective to move cutting tools downwards through openings in the punch main body. The length of the extruded profile (5) and the positioning thereon of the openings for the cutting tools can be varied without the need for new production moulds, thereby simplifying and reducing the cost of production of a range of different sizes of punch.

REFERENCES:
patent: 2449108 (1948-09-01), Carlock
patent: 2717643 (1955-09-01), Marano
patent: 3073199 (1963-01-01), Yerkes
patent: 3176570 (1965-04-01), Gaya
patent: 4036088 (1977-07-01), Ruskin
patent: 4116030 (1978-09-01), Kobayashi et al.
patent: 4466322 (1984-08-01), Mori
patent: 4656907 (1987-04-01), Hymmen

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