Patent ID: 6382834
Filing Date: 2002-05-07
Classification: A61B,F16H,H05G

Abstract:
A tensioner for a belt comprising:(a) a support; (b) a roller in contact with the belt; (c) means for rotationally carrying the roller, the means for carrying being mounted on the support to permit back-and-forth motion between two extreme positions; (d) means for urging the means for carrying from a first to a second of the two extreme positions, the means for urging arranged between the support and the means for carrying; (e) means for switching to cause the means for carrying to occupy a first state only when the means for carrying is at the first extreme position and to pass into the second state when the means for carrying has left this first extreme position under the action of the means for urging; (f) means for mounting the support on a base so that the means for carrying occupies the first extreme position only when the belt is intact and has a predetermined tension; (g) the roller being mounted in a clevis having an extension mounted movable in longitudinal translation in the support; and a free end of the extension acting on the means for switching for operating the means for switching.