Patent ID: 8973273
Filing Date: 2015-03-10
Classification: B25D,B25G

Abstract:
1. A foldable chisel comprising: a blade; a first handle rotatably coupled to the blade and forming a first channel adapted to receive a first side of the blade; a second handle rotatably coupled to the blade and forming a second channel adapted to receive a second side of the blade opposite the first side of the blade, the first handle and second handle rotatable between an open position in which the blade is substantially exposed and a closed position in which the blade is at least partially contained in the first channel and the second channel, wherein the first handle and the second handle comprise a rotatable coupling such that the first handle and the second handle rotate with one another in opposite directions between the closed position and the open position, and wherein the rotatable coupling further comprises an over-center structure configured to impede rotation of the first handle and the second handle from the closed position toward the open position until the over-center structure rotates past an over-center position, wherein application of a threshold force on the first handle and the second handle enables the first handle and the second handle to overcome a force, provided by the over-center structure, that impedes rotation of the first handle and the second handle, and wherein the first handle and the second handle are biased toward the closed position when rotating the first handle and the second handle from the open position to the closed position and when the over-center structure rotates past the over-center position.