Patent ID: 6761517
Filing Date: 2004-07-13
Classification: B23Q,Y10T

Abstract:
A motorized device comprising:a first element, which is made up of a tubular wall having two opposite ends, and has a channel and a longitudinal axis extending substantially axially with respect to the device, a second element which, connected to one of the ends of the first element, is made up of a spindle nose, a third element which, disposed about the first element, is made up of a means of guiding the first element in rotation about the longitudinal axis, and the third element being located relative to a fourth element intended to achieve a connection between the device and a support fixed with respect to rotation, a fifth element which, situated around the first element, is made up of a means for driving the first element in rotation, wherein in this device: the fifth element is constructed around an elongated piece perforated by an axial channel, which elongated piece is referred to as a sixth element, the axial channel of the sixth element is of an inner diameter greater than an outer diameter of the first element such that an entire longitudinal extent of the sixth element is able to be engaged along the first element, at least one of the first element and the sixth element is equipped with a seventh element, the function of the seventh element is to ensure a coupling in rotation of the first and the sixth elements, and the first and sixth elements fit together loosely, and the seventh element, the function of the seventh element is to ensure the coupling in rotation of the first and sixth elements, comprises an elastic piece that ensures a transmission of a rotation movement between the sixth element and the first element, and to absorb a difference in radial position between the longitudinal axes of the first and sixth elements.