Vehicle rollover test fixture

Measuring and testing – Testing by impact or shock – Accelerated or decelerated specimen

Reexamination Certificate

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Details

C073S012130, C073S865300

Reexamination Certificate

active

11380862

ABSTRACT:
A test fixture for rollover crash testing of a test vehicle onto a moving surface employs a cradle to support and rotate the test vehicle. A vertical support structure to positions and releasably holds the cradle. A moving sled having a contact surface is carried by a guide extending beneath the structure and the cradle fixture. The cradle is rotated and released from the structure responsive to a sensor for contact within a drop impact zone on the contact surface of the moving sled. Vertical motion of the cradle is then arrested to prevent further damage to the test vehicle or the test structure.

REFERENCES:
patent: 6256601 (2001-07-01), Wipasuramonton et al.
patent: 6622541 (2003-09-01), Stein et al.
patent: 6651482 (2003-11-01), Moffatt et al.
patent: 2004/0254707 (2004-12-01), Lu et al.
patent: 2006/0207353 (2006-09-01), McCoy
Batzer S. A., Hooker R. M. “Dynamic Roof Crush Intrusion in Inverted Drop Testing” 19thInternational Safety Conference on the Enhanced Safety Vehicles, Paper No. 05-0146-W, Washington, D. C. Jun. 6-9, 2005. Accessed online on Jan. 30, 2008 <http://www-nrd.nhtsa.dot.gov/pdf
rd-01/esv/esv19/05-0146-W.pdf>.
Federal Motor Vehicle Safety Standards; Roof Crush Resistance. 49 CFR Part 571. Accessed online on Jan. 30, 2008 <www.nhtsa.dot.gov/cars/rules/rulings/RoofCrushNotice/216NPRM-to-FR.html>.
Friedman K., Gaston F., Bish J. Experimental comparison of inverted dummy and living human drop tests. 1999 Bioengineering Conference. Accessed online on Jan. 30, 2008 <http://asme.pinetec.com/bio 1999/data/pdfs/a0025025.pdf>.

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