Patent ID: 8267822
Filing Date: 2012-09-18
Classification: F16H

Abstract:
1. Wrap-around drive, comprising a circulating belt means, which is driven by at least one drive element and which drives at least one driven element, at least one first tensioning device acting on the belt means on a slack strand of the wrap-around drive in an area between where the belt means leaves the drive element in a belt means circulating direction and reaches a closest driven element, and at least one second device acting on a tightened strand of the wrap-around drive in an area located between where the belt means reaches the drive element in the circulating direction and leaves the closest driven element, the second device is constructed for guiding the belt means and there is at least one third device, which is stationary and is arranged in a radial direction inside the wrap-around drive and which is also suitable for limiting excursions of the belt means, the at least one third device including first and second guide rails located opposite each other, the first guide rail is located on an opposite side of the belt means from the first tensioning device, in a directly opposing position forming a first guide channel therebetween for the slack strand which is adapted to contact the first tensioning device and the first guide rail, and the second guide rail is located on an opposite side of the belt means from the second device, in a directly opposing position forming a second guide channel therebetween for the tightened strand which is adapted to contact the second device and the second guide rail.