Patent ID: 7980108
Filing Date: 2011-07-19
Classification: B21D

Abstract:
1. A bending device for a tubular member, comprising: a bending tool rotatable about an axis, said bending tool including a circumferential recess and being split transversely to the axis to form a first tool member and a second tool member, said recess including shell-shaped channels in the first and second tool members; a plate-shaped wiper die having a receiving channel extending tangentially to the recess and sized to embrace a major part of the tubular member; a non-rotatable disc-shaped support tab securely fixed to the wiper die and projecting between the first and second tool members, said support tab having a circumferential cradle configured to merge into the receiving channel of the wiper die in a tangential and smooth manner; an outer clamping jaw jointly pivotable with the bending tool; and a trough-shaped resistance member placed in opposition to the wiper die and movable longitudinally along the receiving channel, wherein the channels of the recess of the bending tool together with the cradle in the support tab are configured to match a contour of the receiving channel, and wherein the receiving channel has reinforced lateral walls which end in lateral regions positioned immediately adjacent to the channels to merge into the channels.