Gear mechanism

US7479083B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Willi Schmidt · Blankenloch, DE
• Jochen Moench · Baden-Baden, DE
• Daniel Cettier · Karlsruhe, DE

Key dates

• Filing date: Oct 22, 2004
• Grant date: Jan 20, 2009
• Expiry date: Sep 9, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2001/2881
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Gear mechanism (10), in particular for adjusting moveable parts in a motor vehicle, comprising a spur wheel (14) which is provided with external teeth (16) and meshes with an internal gear (18) that is provided with internal teeth (20), wherein the number of internal teeth (20) to generate a certain gear step-up ratio is greater by at least one than the number of external teeth (16) and the spur wheel (14) and the internal gear (18) perform an eccentric movement relative to one another, wherein the eccentric movement is directed exclusively by means of the matching tooth geometry of the internal and external teeth (20, 16).