Apparatus for bending laminations in general and computer disket

Details Apparatus for bending laminations in general and computer disket Apparatus for bending laminations in general and computer disket

1997-12-02

1999-11-30

Butler, Rodney

Metal deforming

By use of roller or roller-like tool-element

With work-forcer offset from, and relatively movable...

B21D 908

Patent

active

059922001

ABSTRACT:
An apparatus for bending metallic and nonmetallic laminations in general and sliding covers for computer diskettes in particular, which has the particularity that it comprises a forming die provided with a lower base and a movable upper part. The lower base constitutes the forming punch and centering elements for positioning the lamination to be bent, while the movable upper part supports a presser adapted to engage the forming punch in order to retain the lamination in position and at least one bending roller which can engage the surface of the lamination without relative sliding in order to perform bending in abutment against the punch.

REFERENCES:
patent: 419156 (1890-01-01), McGiehan
patent: 2274828 (1942-03-01), Finzel
patent: 3613427 (1971-10-01), Haddon
patent: 4619126 (1986-10-01), Kolecki
patent: 5253502 (1993-10-01), Poletti
patent: 5501094 (1996-03-01), Mizuta et al.
Patent Abstracts Of Japan vol. 6, No. 97 (M-134), Jun. 5, 1982 & JP 57 032826 A (Toyota Motor Corp), Feb. 22, 1982, * abstract*.

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