Drive mechanism for jaw actuated clamping device

摘要

A linear ratchet drive mechanism operable single handedly for pivotally actuating one or more plier jaws in a diverging or converging direction for gripping objects under extreme pressure. A drive rod is received in a handle body for axial movement with one end of the drive rod pivotally linked to the jaw or jaws in order to actuate the jaws. An actuating lever is pivotally connected at one end to the handle body and extends from the handle body for single hand actuation by squeezing the lever against spring biased towards the handle body. The actuating lever is provided with a leverage arm that extends from the pivoting end of the actuating lever and is pivotally connected to a drive grip lever having an aperture surrounding the drive rod for binding against the drive rod for thereby driving the drive rod in one direction when the drive grip lever is canted and moved by squeezing the actuating lever.

主权项

1. A device comprising:
a pair of jaws pivotally coupled to a handle body and a drive for pivotally actuating at least one of said jaws, said drive comprising:
a drive rod received in said handle body for axial movement with one end of said rod pivotally linked to said at least one jaw for pivoting said at least one jaw with axial movement of said rod;an actuating lever pivotally connected at one end to said handle body and extending therefrom for single hand actuation by squeezing said lever against spring bias toward said handle body, said actuating lever having a leverage arm extending from said one end toward said drive rod;a drive grip lever having an aperture surrounding said rod for binding against said rod and thereby slidably moving said rod in one direction when said drive grip lever is canted and moved;a distal end of said leverage arm pivotally coupled to said drive grip lever whereby said drive grip lever will cant and thereby bind said aperture on said rod when said actuating lever is pivoted to thereby axially move said rod in said one direction to correspondingly pivot said at least one jaw.