Strip Curtain Interlock
Original Publication Date: 1981-Nov-01
Included in the Prior Art Database: 2005-Feb-12
U. S. Patent 4,235,494 discloses a tambour door for a data processor enclosure. Such a door includes a number of canisters that are hinged to outside frame members. A continuous series of strips are flexibly joined and form a curtain that can be rolled on tracks into and out of a canister for the purpose of uncovering and covering, respectively, the interior of the closure. A problem might exist when a curtain is rolled into a canister and subsequently moved or hinged away from the frame. During such a condition, one might be able to pull the curtain out of the canister. Shown in the drawings is an interlock for preventing the curtain from being extracted when the canister is unlatched (open) and hinged away, and allows curtain extraction in the latched position (closed).