Torque transmission device

Patent metadata

Field	Value
Publication number	US-10598228-B2
Application number	US-201815897409-A
Country	US
Kind code	B2
Filing date	Feb 15, 2018
Priority date	Jun 1, 2012
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

A torque transmission device includes a shaft which has shaft teeth around its outer circumference, a hub which has hub teeth on an inner circumference, wherein the hub is arranged on the shaft in such a way that the shaft teeth and the hub teeth mesh with one another in order to transmit torque. The torque transmission device furthermore includes at least one spring element which passes entirely through the hub and is supported on the shaft and the hub and exerts a spring force on the hub and the shaft, wherein at least a component of the spring force is directed in such a way that around the entire circumference of the shaft and hub adjacent flanks of the shaft teeth and the hub teeth are pushed together.

First claim

What is claimed is:

1. A torque transmission device, comprising:
a shaft having an outer circumference provided with a shaft toothing adjacent a distal end surface thereof;
a hub comprising a bore extending between opposing end faces thereof, said bore having an inner circumference provided with a hub toothing, said hub being arranged on the shaft so that the shaft toothing and the hub toothing engage one another to transmit a torque,
wherein one of the hub toothing and the shaft toothing comprises a pair of opposing gaps defined between respective adjacent teeth thereof, adjacent teeth of the other of the hub toothing and shaft toothing being arranged within each said gap; and
a spring element having two legs formed with a base connecting the legs, the legs being arranged at opposing positions between the shaft and the hub, each said leg being arranged within one of the said gaps and disposed between said adjacent teeth of the other of the hub toothing and the shaft toothing and supported on tooth flanks thereof, said spring element completely traversing the hub between said opposing end faces and being supported on the shaft and the hub,
wherein the base extends across said distal end surface of the shaft, and each said leg has a free end inserted in an indentation on an outer side of the shaft to establish a form fitting connection therewith and to exert a spring force thereon, and
wherein each said leg comprises an outwardly extending bent portion abutting the hub to exert a spring force thereon, and at least one component of the spring force is oriented so that adjacent flanks of the shaft toothing and the hub toothing are pushed against each other over an entire circumference of the shaft and hub.

2. The torque transmission device of claim 1 , wherein the spring element is configured as one piece.

Assignees

• Audi Ag

Inventors

• Pahlich Lutz

Classifications

• F16D1/10 Primary

  Quick-acting couplings in which the parts are connected by simply bringing them together axially · CPC title

• F16D3/02

  adapted to specific functions · CPC title

• Y10T403/7026

  Longitudinally splined or fluted rod · CPC title

• F16D2001/103

  the torque is transmitted via splined connections · CPC title