A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A defeater latch handle with a handle, a lock, and escutcheon. The handle has a through hole and a recess. The recess has a generally semi-circular ring portion and a recess notch portion that communicates with and extends out of the semi-circular ring portion. The lock is accessible through the cylinder hole. Opening the lock moves a movable blocking device to an unlocked state. The escutcheon has a bore formed therein. The bore has a notch formed therein that receives the blocking device when in its locked state. A trigger slot formed in the escutcheon receives a slidable trigger with an extension catch. In a locked state, the extension catch is in the recess notch. In an unlocked state, the extension catch moves out of the recess notch and into the semi-circular ring portion. The handle can only be turned when both the lock and the slidable trigger are unlocked.
A defeater latch handle with a handle, a lock, and escutcheon. The handle has a through hole and a recess. The recess has a generally semi-circular ring portion and a recess notch portion that communicates with and extends out of the semi-circular ring portion. The lock is accessible through the cylinder hole. Opening the lock moves a movable blocking device to an unlocked state. The escutcheon has a bore formed therein. The bore has a notch formed therein that receives the blocking device when in its locked state. A trigger slot formed in the escutcheon receives a slidable trigger with an extension catch. In a locked state, the extension catch is in the recess notch. In an unlocked state, the extension catch moves out of the recess notch and into the semi-circular ring portion. The handle can only be turned when both the lock and the slidable trigger are unlocked.
Handle assembly with lock position defeater and related methods
| European Patent Office | 2018