Patent ID: 7967686
Filing Date: 2011-06-28
Classification: B60K,F16D,Y10S

Abstract:
1. A longitudinal drive shaft for motor vehicles, for transferring a torque, comprising: at least two shaft sections comprising a first shaft section and a second shaft section; an intermediate shaft or a journal connecting the two shaft sections to each other; a center bearing having a roller bearing and being carried by the intermediate shaft or journal; a homokinetic displacement joint rigidly disposed in a pipe of the first shaft section for connecting the intermediate shaft or journal to the first shaft section, said joint comprising an outer joint ring, a ball hub, balls which run guided in ball grooves of the outer joint ring and ball hub, and a cage; a sealing cap and a sealing bellows for sealing the joint in a direction of the second shaft section, and a closure lid assigned to the joint and configured as a guidance and securing element, said lid being disposed towards the first shaft section and projecting into an interior of the pipe of the first shaft section, wherein the closure lid is a shaped part produced from a thin-walled material, and consists of an attachment collar, a cylindrical part, a planar part, and a guidance bevel, and is configured with planned breaking points, and a transition point from the cylindrical part to the planar part of the closure lid is configured as one of the planned breaking points; wherein parts of the center bearing and the second shaft section that are displaced during a crash are configured to be smaller than an inside diameter of the pipe of the first shaft section, and wherein an inside diameter of the outer joint ring is greater than outside diameters of the roller bearing and of a pipe of the second shaft section.