Rollover protection sysem for motor vehicles with predetermined deformation point

US6817628B2 · kind B2 · utility

Assignee

• ISE Innomotive Systems · DE

Inventors

• Klaus Hövelmann · Gifhorn, DE
• Michael Nass · Bergneustadt, DE
• Manuela Zupancic · Bergneustadt, DE
• Reinhard Nowack · Drolshagen, DE
• Hans-Gerd Menne · Bergneustadt, DE

Key dates

• Filing date: Aug 20, 2002
• Grant date: Nov 16, 2004
• Expiry date: Sep 6, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/135
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

This type of rollover protection system typically comprises a roll bar body that is either firmly anchored to the vehicle, or is displaceably guided in a guide element that is fixed to the vehicle, in conjunction with a locking device that serves as a retraction blocking mechanism to lock the deployed roll bar body against any unintended retraction.To structurally control high peak loads that occur in a rollover without a total failure of the protective system, particularly of the locking device in deployable systems, the invention provides that the roll bar body, possibly the associated guide element and its fixation on the vehicle as well as the retraction blocking mechanism be configured as a rigid system relative to the maximum load that occurs in a rollover. A cross-member-type support element terminating the roll bar body on the end face is configured as a predetermined deformation point for a limited defined deformation path in load direction for energy degradation.