Self-locking belt retractor

US8770507B2 · kind B2 · utility

Assignee

• Autoliv Development AB · SE

Inventors

• Uwe Evers · Rosbach, DE
• Ronald Jabusch · Elmshorn, DE
• Barbara Hantel · Elmshorn, DE

Key dates

• Filing date: Nov 2, 2010
• Grant date: Jul 8, 2014
• Expiry date: May 30, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R22/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A self-locking belt retractor has a vehicle-sensitive controlled blocking system in which a mass (14) moves a locking lever (17) engaged in the toothing (29) of a controlled disk. The sensor mass (14) is fitted in a holder part (10) on a support surface (23) that can be tilted in case of vehicle accelerations, the locking lever (17) on the end (19) facing away from the engaging tip (18) being connected to the sensor mass (14) in a form-fitting manner and forming a support (21). A form fit occurs in an extension (15) of the sensor mass (14) which protrudes through a hole (33) in the contact surface (23) of the holder part (10). A projection (31) projecting into a hole (33) is provided at the border of the hole (33) facing the locking lever (17) that is contacted by the locking lever (17) in case of a deflection.