Patent ID: 9205497
Filing Date: 2015-12-08
Classification: B23B,Y10T

Abstract:
1. A collet for connecting a rotary tool to a rotary tool driver, the rotary tool including a shaft having a shaft end and a shaft diameter, the collet comprising: a body including a first end arranged to connect to the rotary tool driver and a second end having an internal space at least partially defined by a frustoconical bore; a plurality of jaws disposed at least partially within the space, each of the jaws including a body having a frustoconical surface sized and arranged to engage the frustoconical bore; and a plurality of engagement members, each engagement member movably coupled to one of the bodies to move between an unlocked position and a locked position, wherein rotation of the rotary tool about the shaft rotational axis in a first direction biases the engagement members toward the unlocked position to allow movement of the rotary tool with respect to the plurality of jaws, and rotation of the rotary tool about the shaft rotational axis in a second direction opposite the first direction biases the engagement members toward the locked position wherein the rotary tool is substantially fixed with respect to the plurality of jaws, and wherein each engagement member includes a cylindrical roller.