Method of producing a telescopic cover with rounded corners

Details Method of producing a telescopic cover with rounded corners Method of producing a telescopic cover with rounded corners

1990-10-15

1993-04-20

Echols, P. W.

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

29DIG3, 29434, 72335, 723792, B23P 1304

Patent

active

052030695

ABSTRACT:
The invention relates to a method of producing a telescopic cover by bending a flat sheet material blank, in which a diamond-shaped cut-out is provided in the sheet material blank and is separated from the adjacent outer edge by a continuous material zone which is stretched without cracking during the bending operation to form a corner zone with a rounded contour.

REFERENCES:
patent: 2006925 (1935-07-01), Klemp
patent: 2207381 (1940-07-01), Lang
patent: 2312721 (1943-03-01), Lang
patent: 3296991 (1967-01-01), Rawson
patent: 3603651 (1971-09-01), Weber
patent: 3857270 (1974-12-01), Iten
patent: 4886375 (1989-12-01), Tsukada

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