Patent ID: 7272968
Filing Date: 2007-09-25
Classification: B21D

Abstract:
1. A corrugated fin shaping device for shaping a corrugated fin having a plurality of bent portions formed as a flat top portion, comprising: a plurality of shaping members provided in accordance with the bent portions of the corrugated fin and shaping the bent portion while holding the inner surface side of the bent portion by its top end portion; a feeding mechanism slidably linked with the plurality of shaping members and sequentially feeding the shaping members from one side to the other side so as to gradually reduce the distance between the shaping members; and a reference member having a reference surface with which the upper end surface of the bent portion in opposition to the inner surface side of the bent portion comes into contact, wherein: the feeding mechanism gradually reduces the distance between the shaping members to a predetermined fin pitch and shapes the upper end surface of the bent portion into a predetermined shape in a state in which the plurality of bent portions of the corrugated fin are arranged at the respective shaping members.