Patent ID: 7685858
Filing Date: 2010-03-30
Classification: B21D

Abstract:
1. A bending brake assembly for manually bending pieces of sheet metal material comprising: a base; a plurality of generally c-shaped members supported by said base and each presenting opposing clamping surfaces for receiving the sheet metal material between said clamping surfaces; an extension extending from said base away from said clamping surfaces; a bending member movable between a pre-bending position, a first operating position, and a second operating position; a socket connection rotatably supporting said bending member on said base for bending the sheet metal material disposed between said clamping surfaces; said socket connection including a male portion and a female portion in sliding engagement with each other as said bending member moves between said pre-bending position, said first operating position and said second operating position; and a finger extending from said male portion and defining a gap between said finger and said extension when in said pre-bending position with said finger maintaining said gap as said finger moves from said pre-bending position to said first operating position and said finger engaging said extension when in said second operating position for reducing an amount of effort to elevate said bending member and for improving a precision of bending the sheet metal material.