| 摘要 |
An adjustable restrainer for use on the cross bar of an amusement ride lap bar assembly consists of a padded roller having an axis of rotation offset maximum and minimum distances from different parts of the roller. The roller can be rotated to adjust the spacing between the roller and a seat of the ride to suit the size of the rider thereby minimizing possible injury to the rider were he otherwise to be slammed over a substantial distance into the cross bar.
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