Key Latch for Data Door of Data Processor Enclosure With Lock-Open and Lock-Closed Positions
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01
An improved key latch mechanism is provided for a processor enclosure door of the type that has two latches that engage slots in the processor frame along the upper and lower edges of the door when the door is locked closed. The key latch mechanism is located midway between the upper and lower edges, and it carries two conventional crank arms that are linked to the latches by wires to pull the latches open when the key is turned. The key latch mechanism has a rotatable tumbler and a carrier that is attached to the door. A hex-shaped slot is formed on the axis of the tumbler, and a hex-shaped key is inserted into the slot to turn the tumbler. The rotatable tumbler has an arculate slot, and a spring-loaded pin is mounted on the carrier to ride in the slot.