Patent ID: 9080655
Filing Date: 2015-07-14
Classification: F16H,Y10T

Abstract:
1. A no-lash nut assembly for installation on a threaded rod, the nut assembly comprising: a lead nut having a front face, a rear face, and a threaded bore for mating with the threaded rod; a trailing nut having a trailing nut threaded bore for mating with the threaded rod, a front portion, and a rear portion, the front portion extending axially past and radially within the lead nut, the front portion having an external surface configured for engagement with the lead nut to prohibit relative rotation and allow relative axial movement between the lead nut and the trailing nut, and the rear portion having a threaded external surface; a transition nut having a transition nut threaded bore along a portion of its rear length for mating to the threaded external surface of the trailing nut, a transition nut external surface defining a slot, and a transition nut front face having a mating surface corresponding to the rear face of the lead nut and allowing relative axial movement between the lead nut and the transition nut; and a torsion spring having a pin at a front end and a hook at a rear end, the pin protruding into a hole in the rear most surface of the lead nut and the hook protruding into the slot of the transition nut and applying a rotational force on the transition nut.