Motorized spindle

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, i.e. an element of coupling with a piece of equipment such as a mandrel, a third element which, disposed about the first element, is made up of a means of guiding this first element in rotation about its longitudinal axis, and this 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 said first element in rotation, wherein in this device: the fifth element is itself constructed around an elongated piece perforated by an axial channel, which elongated piece is referred to as the sixth element, the axial channel of the sixth element is of an inner diameter greater than the outer diameter of the first element such that the said sixth element is able to be engaged along its longitudinal axis on the first element, at least one of the elements, which are the first element and the sixth element, is equipped with a seventh element, the function of which is to ensure the coupling in rotation of the said first and sixth elements.

Dependencies are inferred from the claim text.