Dental tool chuck

Abstract

A dental handpiece for rotatably driving a dental tool includes a sheath housing a chuck which releasably holds the dental tool to the handpiece and a push button in operative contact with the chuck to operate the chuck to move the chuck between a looked and unlocked position. The push button is in the form of a ring which slides in a plane perpendicular to the axis of the sheath. The chuck includes a bur tube rotatably received in the sheath, a tilt plate which extends through side openings in the bur tube, and a tilt plate pusher which is received in the sheath and through which the bur tube extends. The tilt plate pusher has a side hole through which an arm of the tilt plate extends, such that movement of the tilt plate pusher will pivot the tilt plate. A head of the tilt plate pusher is in operative contact with the push button, such that when the push button is pressed, the tilt plate pusher will be moved forwardly to move the tilt plate from a locked to an unlocked position.

Dependencies are inferred from the claim text.