Variable offset crankshaft

Abstract

A crankshaft having a crank pin with a continually variable offset that is based on a rotational operating speed of a tool in order to provide high torque during high loading situations and higher speed as loading decreases. The crankshaft includes a crankshaft base that interfaces with a drive mechanism of the tool, a crank pin slider with a crank pin that interfaces with an output of the tool, and a bias member that biases the crank pin slider with respect to the crankshaft base. As a rotational speed of the crankshaft increases, inertial effects on the crank pin slider cause the crank pin slider to move against the bias of the bias member to a larger offset position to allow the output speed of the tool to increase. This allows a power ratchet type tool to operate at a variable torque and speed based on torque load. 170292873v1 20 25 28 36 98 22 D ec 2 02 5 A B S T R A C T 2 0 2 5 2 8 3 6 9 8 2 2 D e c 2 0 2 5 1 7 0 2 9 2 8 7 3 v 1 F IG . 9 F IG . 1 0 2 0 0 2 0 2 2 0 6 2 2 4 2 1 8 2 0 4 2 3 0 2 1 4 2 0 8 2 0 2 2 0 8 2 0 6 2 2 4 2 1 8 2 3 0 1 0 0 2 0 4 2 1 0 2 1 22 1 4 2 1 6 1 0 6 2 2 0 2 2 0 5 / 8 20 25 28 36 98 2 2 D ec 2 02 5 2025283698 22 Dec 2025 FIG. 10 214 230 216 901 © 210 206 224 208 202 212 6 "OIG 214 220 000 000 218 206 208 202 200 8 / 9

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