| 摘要 |
A multi-compartment facility having a master door which can be opened by use of a master key and, when opened, admits substantially unrestricted access to all of the mailbox compartments, the master door incorporating a plurality of pivotally-mounted, sub-doors arranged to register each with a different one of the compartments and the sub-doors being individually lockable and openable only by assigned key holders. A manually operable control determines the condition of the flaps and employs a gear and rack system which moves a cam to longitudinally displace hinge rods for the sub doors, flap locking members being carried by the hinge rods and either preventing opening of the flaps or permittting them to open depending on the displacement condition of the hinge rods. In a modified arrangement, the flaps can be selectively and individually rendered non-lockable whereby the users can opt to receive junk mail and other deliverables. |
