| 摘要 |
This disclosure describes a safety apparatus for use in a mechanized filing cabinet. A lower bar having a lamp at one end and a photocell at the other end is attached by springs to the rear of the posting board of the filing cabinet. An upper bar also having a lamp at one end and a photocell at the other end is attached by springs to the bottom of the closure door of the filing cabinet. When either of the photocell beams is broken, the motor that moves the trays of the filing cabinet is deenergized. In addition, when the door is closed, the upper bar impinges on rubber stops causing the upper bar to move upwardly. The upward movement of the upper bar opens microswitches which are also connected to deenergize the tray movement motor.
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