Patent ID: 9670995
Date: 2017-06-06
CPC Classifications: F16H

Claim:
1. A tensioning and damping element, wherein the tensioning and damping element is disposable between a tight side and a slack side of an endless chain drive and thereby acting constantly on both sides of the endless chain drive, the tensioning and damping element being formed as an elastically deformable element which includes elastic plastic, and comprising: and wherein the tensioning and damping element is deformable between a shape of a concentric element and a shape of a Cassinian curve with a shape close to an ellipse, the diameter of a pitch circle or a smallest axis of the tensioning and damping element being larger than a diameter of a pitch circle of a smallest chain sprocket of the endless chain drive, wherein the radially elastic roller-seatings have bulges, which are axially on opposite sides in the width of the radially elastic roller-seatings, arranged on either side of the ring part and lying externally on a root circle with a roller-seating depression of a depth e wherein the toothed rim has grooves between the ring part and the bulges, and wherein the toothed rim has an extended pitch q wherein the radially elastic roller-seatings are extended with a profile shape similar to a semi-elliptical curve, which lies radially on the root circle and which has a main apex axis between two points which, projected on the pitch circle, has a length l