Return stop

US11060568B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Alexander Reimchen · Herzogenaurach, DE
• Frieder Altmann · Pommersfelden, DE
• Stefan Hofmann · Gauting, DE

Key dates

• Filing date: Jul 12, 2018
• Grant date: Jul 13, 2021
• Expiry date: Jul 12, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2041/0605
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A return stop includes a rotational inner ring, a stationary, fixed outer ring, and a cage mounted radially between the inner ring and outer ring. The cage has at least two pairs of rollers each having a first and a second roller. A clamping rail is formed on an outer peripheral surface of the inner ring for each roller. A radial recess is formed on the inner ring in the peripheral direction directly adjacent to the respective clamping rail. Also, both of the clamping rails of the roller pairs are formed in the peripheral direction in opposite directions away from each other. In a free-running operation of the return stop, only one roller of each pair of rollers comes into position on the inner ring and the outer ring. The other roller of each pair of rollers does not come into position at least one the inner ring.