Patent attributes
An inner operating device for a door lock is mounted to an inner side of a door and includes a first detecting member electrically connected to an electric driving device. A second detecting member is mounted in a latch device of the door lock. When the first detecting member detects an external force applied to the inner operating device, the electric driving device is activated, and the latch is moved to the unlatching position. When the latch device is set to be in a locked state or an unlocked state, the second detecting device outputs a signal to a lighting device to emit light for indicating the locked or unlocked state. In another example, the lighting device emits light of a first color when the latch device is in the locked state and emits light of a second color when the latch device is in the unlocked state.
