Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Patent
1989-06-16
1991-03-19
Jones, David
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
72446, 72448, 72481, B21D 3704
Patent
active
050000225
ABSTRACT:
A presswork machine having location pins protruding from the upper of the bolster, of which the top ends are engageable with location holes provided on the bottom of the press die, thereby enabling easy and exact positioning of the press die to the bolster, and having a fixing device provided on the presswork machine side to fix the press die to the bolster, thereby simplifying the structure of the bolster and reducing the equipment cost.
REFERENCES:
patent: 3422662 (1969-01-01), Geuss
patent: 3881343 (1975-05-01), Ducate
patent: 4598574 (1986-07-01), Hegel et al.
patent: 4665733 (1987-05-01), Wallis
patent: 4674315 (1987-06-01), Linz
patent: 4698894 (1987-10-01), Lingaraju et al.
"Technique of Pressworking Sheet Metal", Eary and Reed, 1974, pp. 440, 473, 475, 476.
Fukushima Hisayoshi
Shinkai Itaru
Jones David
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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