Patent ID: 8371421

Claim:
A braking device ( 100 ) for braking or immobilising a shaft ( 11 ) for a work tool ( 35 ), comprising: a brake band ( 13 ) that has two ends and surrounds an area of the shaft ( 11 ) such that the ends form an overlapping area, wherein the brake band ( 13 ) has a narrower width in the overlapping area than in the rest of the brake band ( 13 ) such that the two ends of the brake band ( 13 ) are disposed in an effective plane ( 14 ); and two brake band holders ( 15 , 26 ), each retaining one of the two ends of the brake band ( 13 ) in the effective plane ( 14 ), via which the brake band ( 13 ) may be tensioned or released characterised in that at least one brake band holder ( 15 ) is mounted outside the effective plane ( 14 ) of the brake band ( 13 ) so as to be: rotatable about the shaft ( 11 ) axis; rotatable about a roughly parallel axis to the shaft ( 11 ); or movable in a plane roughly orthogonal with the shaft ( 11 ); wherein the at least one brake band holder ( 15 ) is mounted in the area of the shaft ( 11 ) by means of a linear guide, the linear guide including a linear sliding section ( 16 b ) and a bearing pin ( 40 b ), wherein the sliding section ( 16 b ) is present on the at least one brake band holder ( 15 ) as a mounting base ( 16 ) that is mounted on at least one bearing pin ( 40 b ) as a first counter bearing ( 40 ) so as to be movable in a linear direction, and wherein the mounting base ( 16 ) has at least one guidance means ( 42 ), which cooperates in positive locking manner with at least one mating guidance means ( 44 ) of the first counter bearing ( 40 ).