초록 ▼

Described is a preferred wireless system for unlatching the door of a residence. The system includes a solenoid/strike plate assembly controlled by a receiver unit which in turn is controlled by RF or other electromagnetic signals. The preferred system is readily retrofit into existing residential s

Described is a preferred wireless system for unlatching the door of a residence. The system includes a solenoid/strike plate assembly controlled by a receiver unit which in turn is controlled by RF or other electromagnetic signals. The preferred system is readily retrofit into existing residential structures with a single bore into the door jamb into which the solenoid/strike plate assembly is mounted, and includes a minimum of moving parts.

대표청구항 ▼

[ What is claimed is:] [1.] A wireless system for hands-free opening of a residential door, comprising:a door mounted in an opening of a residence, the door having a latch having an extended position for placing the door in a closed, latched condition, and a retracted position for placing the door i

[ What is claimed is:] [1.] A wireless system for hands-free opening of a residential door, comprising:a door mounted in an opening of a residence, the door having a latch having an extended position for placing the door in a closed, latched condition, and a retracted position for placing the door in a closed, unlatched condition from which the door can be pivoted open, the latch being spring-biased to the extended position; the door further having a handle manually operable to overcome the spring bias of the latch to convert the door from its closed, latched condition to its closed, unlatched condition;a door jamb adjacent the opening and, mounted in the door jamb, a remotely-operable solenoid/strike plate assembly for converting the door from its closed, latched condition to its closed, unlatched condition without manually operating the handle, the assembly including:a strike plate having an opening for receiving the door latch when in its extended position, and for releasing the door latch when in its retracted position;a solenoid unit having a push rod and arranged such that when the solenoid is energized with the door in its closed, latched condition, the push rod extends into the opening of the strike plate, overcomes the spring bias of the door latch and forces the same to its retracted position thereby placing the door in its unlatched condition, and when the solenoid is de-energized the spring bias of the door latch is sufficient to move the push rod to a retracted position and secure the door in its closed, latched condition;a signal receiver unit operable to energize the solenoid upon receiving a predetermined electromagnetic wave signal, and to de-energize the solenoid in the absence of the signal; anda transmitter adapted to transmit the electromagnetic signal when actuated;whereby a user of the system can unlatch the door by manually operating the handle or by actuating the transmitter to allow hands-free opening of the door.