Patent ID: 6994199
Filing Date: 2006-02-07
Classification: F16D

Abstract:
1. Load torque lock ( 10 ) for automatically locking load-side torques in the case of a decrease or cessation of a drive-side torque with the maintenance of the transmission possibility of drive-side torques from a drive shaft ( 14 ) to the output shaft ( 15 ) of the load torque lock, comprised of a housing ( 11 ) fixed to a frame with at least one locking ring ( 18 ) permanently connected to the housing and with at least one locking body ( 17 ) cooperating with the locking ring and revolving with the drive shaft, which features locking means ( 19 , 20 ), which, on the one hand, press against the locking ring ( 18 ) with the occurrence of a load-side torque and the cessation of a correspondingly large drive-side torque by swiveling the locking body in one rotational direction by means of a locking element ( 27 , 28 ) of the output shaft ( 15 ) and which, on the other hand, releases from the locking ring with the occurrence of a drive-side torque by swiveling the locking body in the other rotational direction by means of a driving element ( 23 , 24 ) of the drive shaft ( 14 ), wherein the locking body ( 17 ) is embodied in such a way that its mass center of gravity (M) lies in the area of the rotational axis ( 16 ) of the drive shaft ( 14 ) and the output shaft ( 15 ) that are aligned with one another, wherein the locking body ( 17 ) is designed as a locking disk, which is arranged perpendicular to the axis of rotation ( 16 ) in the housing ( 11 ), and wherein the locking disk ( 17 ) features at least two locking means ( 19 , 20 ) on radii of different sizes and offset from one another in the circumferential direction by an angle (α), of which the one locking means ( 19 ) cooperates with the outside ( 21 ) of the locking ring ( 18 ) fixed to the housing and the other locking means ( 20 ) cooperates with the inside ( 22 ) of the locking ring.