Anti-rollback systems

An introduction to anti-rollback systems is found e.g. in Coaster Quest's presentation, illustrated with photographs. Birket Engineering presents a detailed Dialog on roller coaster safety

Below, I have collected a few examples of patents relating to anti-rollback prevention. There are more to be found by in the patent databases by using the advanced search functions (e.g. at Esp@acenet) or using the cross-reference system available for patents in the USPTO database.

DE19744342 Reverse travel blocking device for e.g. roller coasters, 1999,
US5738017 Rail vehicle reverse movement prevention assembly, 1998
WO9746296 Ride attraction anti-rollback system, 1997,
US5325790, Rollback-preventing apparatus for a rail vehicle, 1994
US4867282 Vehicle anti-roll back device, 1989

Other sites that may be of interest are Ride Accidents, Safer Parks and Amusement Safety as well as old reports on anti-rollback failures, 1999, 1998, 1997.

Please note: This page is intended as background material for our students. It does not present information from Liseberg, neither official nor inofficial. Liseberg's information about the July 2006 accident can be found at Liseberg: Press information. (No further information is expected until the internal investigation is finished, and Lisebergbanan is not expected to open at least until the second half of august.)

Translation of the official Swedish "TT" News can be found at http://www.thelocal.se/.

http://physics.gu.se/LISEBERG/LISEBERGBANAN/rollback.html
Ann-Marie Pendrill, 2006-07-23