Metal deforming – By use of 'flying tool' engaging moving work – Included in plural deforming stations or passes
Patent
1997-03-31
1998-10-13
Larson, Lowell A.
Metal deforming
By use of 'flying tool' engaging moving work
Included in plural deforming stations or passes
723796, B21D 1304
Patent
active
058195750
ABSTRACT:
According to the present invention, a brake unit is disposed at a side of the forward direction of the fin material from a reforming unit. The brake unit contracts the fin material so that the adjacent folded portions contact with each other while being reformed. Thus, the contracted fin material is in a stable state not to be deformed easily. In this way, even if moment tilting flat portions of corrugated fin is given by the reforming unit, the flat portions are prevented from tilting. A concave or convex deformation of the folded portions can be reformed satisfactorily.
REFERENCES:
patent: 3850018 (1974-11-01), Drosnin
patent: 4507948 (1985-04-01), Wallis
patent: 5176020 (1993-01-01), Maruo et al.
patent: 5509288 (1996-04-01), Ohno et al.
Iriyama Shoji
Kobayashi Hisashi
Kono Takashi
Ohno Tetuo
Denso Corporation
Larson Lowell A.
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