Patent ID: 9145282
Filing Date: 2015-09-29
Classification: B61H,B66B,B66D,F16D

Abstract:
1. A friction brake ( 1 ), in particular for elevators, comprising at least two brake levers ( 2 ) that each have a brake lining ( 6 ) and are arranged opposite each other in the form of a caliper, wherein at least one brake lever ( 2 ) is pivotally mounted, and an actuator ( 5 ) for actuating the brake levers ( 2 ), which is configured in such a way that the force (F A ) exerted by the actuator ( 5 ) acts substantially perpendicular to a clamping force (F Z ) exerted by the brake levers ( 2 ), and a spreading mechanism ( 9 , 26 ), which can be acted on by the actuator ( 5 ) in order to regulate the clamping force (F Z ), wherein the spreading mechanism ( 9 , 26 ) comprises a roller unit ( 9 ) that is controlled by an actuator ( 5 ), said roller unit having a first roller ( 21 ) that rolls on a first surface ( 10 ) provided on the first brake lever ( 2 ), and a second roller ( 22 ) that rolls on a second surface ( 48 ) provided on the second brake lever ( 2 ), wherein the rollers ( 21 , 22 ) rotate around the same axis of rotation.