| 摘要 |
A locking assembly is provided for a pivotally openable window or door security grille (14, 82) of a building. To unlock the security grille (14, 82), a user operates an electric punch key pad (52) to cause a solenoid rod (168) to disengage a depression (182) and the operates a handle (54) to cause an actuator support bracket (100) to pivot in a forward direction from a first reference location to a second reference location against the influence of a coil spring (132), whereby a catch surface (130) no longer engages against a shaft member (26) which is free to leave a lockable location and allow the security grille (14, 82) to be pivoted to an opened position, and whereafter a slidable pin (152) engages a depression (150) under the influence of a coil spring (156). To lock the security grille (14, 82), the user pivots the security grille (14, 82) to a closed position so as to cause the shaft member (26) to apply a force against the slidable pin (152) that disengages the slidable pin (152) from the depression (150) against the opposing influence of the coil spring (156), whereby the actuator support bracket (100) is caused to pivot in a reverse direction from the second reference location to the first reference location under the influence of the coil spring (132) until the catch surface (130) engages against the shaft member (26) so as to prevent the shaft member (26) leaving the lockable location, and whereafter the solenoid rod (168) reengages the depression (182).
|
