Patent ID: 8875482
Filing Date: 2014-11-04
Classification: D01H

Abstract:
1. Open-end spinning rotor ( 1 ), comprising a rotor shaft ( 4 ), a rotor cup ( 2 ) and a coupling device ( 3 ) for releaseably connecting the rotor shaft ( 4 ) and rotor cup ( 2 ), wherein the coupling device ( 3 ) has locking bodies ( 6 ), which are arranged in a holding element ( 5 ) and lock the rotor cup ( 2 ) and the rotor shaft ( 4 ) in the axial direction as a consequence of the centrifugal force during operation of the open-end spinning rotor ( 1 ), and wherein a resilient element ( 7 ) is associated with the locking bodies ( 6 ) and the resilient element ( 7 ) cooperates with the locking bodies ( 6 ) in such a way that the locking bodies ( 6 ) also lock the rotor cup ( 2 ) to the rotor shaft ( 4 ) in the axial direction at a standstill, characterized in that the holding element ( 5 ) is configured as a pin and the pin is formed in such a way that it produces a positive shaft-hub connection between the rotor shaft ( 4 ) and rotor cup ( 2 ) in conjunction with a correspondingly formed hub ( 8 ), wherein the hub ( 8 ) has receivers ( 9 ), which at least partly receive the locking bodies ( 6 ) in the assembled state, the receivers ( 9 ) in each case have a face ( 12 ), against which the locking bodies ( 6 ) press, and the rotor shaft ( 4 ) and the rotor cup ( 2 ) in each case have a stop 11 ) to limit an axial movement, the receivers ( 9 ) and the face ( 12 ) being configured in such a way that the force acting in the radial direction on the locking bodies ( 6 ) is converted into a force in the axial direction of the open-end spinning rotor ( 1 ) and the stops ( 10 , 11 ) of the rotor shaft ( 4 ) and rotor cup ( 2 ) are thereby pressed against one another.