A screw-released roller brake including an input drive assembly, an output drive assembly, a plurality of locking sprags, a mechanical tripper nut for unlocking the sprags, and a casing therefor. The sprags consist of three dimensional (3-D) sprag members having pairs of contact surface regions which engage respective pairs of contact surface regions included in angular grooves or slots formed in the casing and the output drive assembly. The sprags operate to lock the output drive assembly to the casing to prevent rotation thereof in an idle mode of operation. In a drive mode of operation, the tripper is either self actuated or motor driven and is translated linearly up and down against a spline and at the limit of its travel rotates the sprags which unlock while coupling the input drive assembly to the output drive assembly so as to impart a turning motion thereto in either a clockwise or counterclockwise direction.
Screw-released roller brake
1999-02-09
Miscellaneous
No indication
English
Clutch Combined With Screw-Released Roller Brake
Online Contents | 1996
PLANETARY ROLLER SCREW-TYPE LINEAR MOTION MECHANISM AND ELECTRIC BRAKE DEVICE
European Patent Office | 2023
|PLANETARY ROLLER SCREW TYPE LINEAR MOTION MECHANISM AND ELECTRIC BRAKE DEVICE
European Patent Office | 2023
|