| 摘要 |
A vandalism-proof lever handle system for activating a locking or latching device has a U-shaped lever handle having first and second bent end portions with a central or intermediate portion therebetween. A second end portion is secured to a mounting surface and has an extended portion for engaging the lock or latching device for activating the same. The opposite first end portion is movably secured to move in an arc-like path within a curved retaining channel forming an arc segment of given arc length. The first end portion is entrained preferably by a shoulder bolt or collar having a widened end portion. The widened end portion or widened portion of the shoulder bolt is received in an interior of the channel. End portions of the retaining channel form abutments or stop points which limit further movement during rotation of the lever handle. The shoulder bolt or widened collarlike element limits rotational, lateral, vertical, and inward and outward forces placed on the lever handle. Thus, the system is protected against vandalism and excessive forces which may damage the handle system and lock or latch to which it is coupled. A stop member may also be provided in the retaining channel to establish a stop point before reaching an end of the channel.
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