Pressure activated seat belt locking mechanism

Abstract

A pressure activated seat belt locking device is disclosed for allowing an operator from a remote location to control the locking or unlocking of seat belts such as those used on amusement park type rides, or elsewhere. The seat belt locking device has a buckle portion into which a latching tongue is inserted and held into place by a retractable element which extends through an aperture in the latching tongue. The latching tongue can be removed from the buckle by depressing a release latch to disengage the retractable element from the aperture. The seat belt locking device is provided with a pneumatically inflatable air bladder which is exerted against a pivotable lever lock when properly inflated. The inflation of the air bladder causes the lever lock to pivot and bear against the lower end of the release latch, such that the release latch cannot be depressed by the user of the seat belt to disengage the retractable element from the latching tongue. Accordingly, the seat belt is retained in the locked position until the air bladder is deflated such that the lever lock pivots away from the release latch.

Dependencies are inferred from the claim text.