| 摘要 |
Herein described is a safety locking device including an aperture extending through a portion of the locking knob which is displaced offset from the rotational center thereof, and which is aligned substantially on a vertical axis. An elongated pin is provided to be inserted in the aperture in the knob and engage a means permanently affixed on the door or door plate to secure at least one end of the pin to prevent arcuate or rotational movement thereof. A second embodiment illustrates a substantially U-shaped member adapted to fit over the inside of an oblong or elongated shaped knob which includes a substantially elongated shaft mounted to the U-shaped member and extends downwardly from the lock to engage the door knob to prevent rotational movement of the knob when the door is locked.
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