| 摘要 |
<p>1. Device permitting the disposal, outside a gear box of an automotive vehicle, of an additional power take-off, with the object of transforming a two-wheel drive vehicle into a four-wheel drive vehicle, of the type comprising an element acting as a housing (14) attached to the housing (3) of the gear box and, monted in this element, an output shaft (24) which passes through the element and which constitutes the said power take-off, a sleeve (23) having internal splines and means of connection (25) which are moveable in rotation, which can be controlled from the outside and which are capable of effecting a mechanical connection between the said sleeve (23) and the said output shaft (24), the said element (14) being mounted on the housing of the gear box in such a manner that the said sleeve (23) is in alignment with a secondary shaft (5) of the gear box, and the internal splines of the said sleeve (23) being engaged with external splines (9) of the said secondary shaft (5), these splines being provided at the end of the said shaft (5), the said output shaft (24) and the said sleeve (23) being aligned, the adjacent ends of the said sleeve (23) and of the said output shaft (24) being splined, a sliding gear (52) which is internally splined and axially moveable owing to the fact that a fork (55) is connected to control means effecting a moveable connection between the said sleeve and the said output shaft, the external end of the said output shaft bearing means of connection to another external transmission shaft, characterized in that the said element is an auxiliary housing (16) which is tubular substantially concentric with the said secondary shaft and which has a wall of radial end (15), which boers on the end face of the housing of the gear box, and internal spaces (21, 22, 60) for the ends of the shafts or the axes of the said gear box extending beyond the said end face of the housing of the gear box and for the said control means, and the said sleeve (23) has, followed by its internally slined portion, a bore of greater diameter defining an internal shoulder intended to serve as a support for a holding nut (29) of the said sleeve, this holding nut being mounted on a threaded end (8) of the said secondary shaft.</p> |
