초록 ▼

A double-door safety access port for use with an automated tape library cartridge machine utilizes two doors that operate independently, but are interconnected mechanically with a latch mechanism and a self-locking gear drive arrangement to control loading and unloading of tape cartridges into the l

A double-door safety access port for use with an automated tape library cartridge machine utilizes two doors that operate independently, but are interconnected mechanically with a latch mechanism and a self-locking gear drive arrangement to control loading and unloading of tape cartridges into the library machine. An inner door of the access port is motor-driven between two positions, an open position allowing robot access to the cartridges, and a closed position that unlatches an outer door to allow operator access to the tape cartridges. The closed position closes off the inside of the library machine to prevent any possibility of operator contact with the library robot. The self-locking gear drive arrangement allows the inner door to be moveable only by operation of a motor. This prevents any manual rotation of the inner door by an operator. Until the outer door is latched, the inner door can not be driven back to its open position.

대표청구항 ▼

1. An access port mounted to an automated library housing for allowing insertion and removal of storage media cartridges from the library, said access port comprising:a cartridge access opening formed in the library housing; an inner door mounted adjacent the access opening on the inside of library

1. An access port mounted to an automated library housing for allowing insertion and removal of storage media cartridges from the library, said access port comprising:a cartridge access opening formed in the library housing; an inner door mounted adjacent the access opening on the inside of library housing; a motor coupled to the inner door to control movement of the inner door between an open position and a closed position, the motor arranged to lock in response to an external force being applied thereto to prevent movement of the inner door unless driven by the motor, an outer door mounted adjacent the access opening on the outside of the library housing; and a latch arrangement mounted to the inner and outer doors which only unlatches the outer door when the inner door is in the closed position.