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Title:
PRESS FORWARDLY FEED DIE OF METALLIC GASKET
Document Type and Number:
WIPO Patent Application WO/1994/026508
Kind Code:
A1
Abstract:
In a press forwardly feed die of metallic gasket wherein a convex bead forming die (3) for forming a convex bead (10b) surrounding a sealed portion is parallely provided between a metallic plate piercing die (2) and an outer contour punching die (4), a plurality of slits (6) each having a predetermined width corresponding to a width of a convex member (18) are equidistantly formed in the convex bead forming die (3) on the female side along a pressing line which is opposed to the convex member (18) on the male side, which is provided for press forming the convex bead (10b) on a metallic plate (10) forwardly fed after subjected to a predetermined piercing by the piercing die (2), and connecting grooves (7) having a depth necessary for bead forming by the convex member (18) and having the same width as the slit (6) are respectively formed between the slits (6).

Inventors:
YOSHINO NOBUO (JP)
Application Number:
PCT/JP1993/000595
Publication Date:
November 24, 1994
Filing Date:
May 06, 1993
Export Citation:
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Assignee:
KABUSHIKIKAISHA KET & KET (JP)
YOSHINO NOBUO (JP)
International Classes:
B21D17/02; B21D28/14; B21D35/00; B21D37/00; B30B13/00; B30B15/02; (IPC1-7): B30B13/00; B30B15/02; B21D37/00; B21D28/14
Foreign References:
JPS5113366A1976-02-02
JPS61103627A1986-05-22
Other References:
See also references of EP 0676279A4
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