My integrated lock is best suited to narrow stile doors
My integrated lock is best suited to narrow stile doors, such as armour doors generally comprised of a glass core with a surrounding hollow metal frame. The lateral longitudinal plate comprises a longitudinal surface from which the bar or bolt extends through a rectangular opening. In addition to this lateral longitudinal plate, my invention comprises anterior and posterior plates. A longitudinal edge of each anterior or posterior plate is attached to a corresponding edge of the lateral longitudinal plate and forms a three-sided enclosure with two right angles.
The inner end of the deadbolt is bifurcated, and the legs formed therefrom contain arcuate shaped apertures. The legs are pivotally attached to the lower end of a rocking lever by a pivot pin which extends though the lower portion of the rocking lever. The rocking lever is physically positioned above the deadbolt and is adjacent to the lock cylinder.
The process of installation of the electromagnetic component is another feature of my invention. My novel process of installation provides a significant economic advantage in large buildings such as, but no exclusively, commercial office space. In these buildings, many locks can be simultaneously upgraded with electronic security components without replacing the entire door. There also need be no new apertures cut into the hollow metal doorframe casing which require more expensive lock hardware.
Spahn’s electronic lock cylinder differs in part from my pending invention in that there is no disclosure of a process which integrates the electronic and mechanical components after prior installation of the mechanical component within a door frame. U.S. Pat. No. 5,136,870 (Gartner et al.) discloses an electronic door lock. A digitally operated code input pad assembly enters a first code and a second code to open a second lock mechanism with the door spring bolt. These locks are adaptable for replacement of an ordinary deadbolt lock mechanism. However, Gartner’s lock does not provide for subsequent installation within a doorframe of only the electronic lock component at a minimum cost and destruction of the doorframe.
The inner end of the deadbolt is bifurcated, and the legs formed therefrom contain arcuate shaped apertures. The legs are pivotally attached to the lower end of a rocking lever by a pivot pin which extends though the lower portion of the rocking lever. The rocking lever is physically positioned above the deadbolt and is adjacent to the lock cylinder.
Two opposing roller cams are mounted on a sleeve, and the sleeve ends move in a limited manner within curved apertures within each anterior or posterior plate. Each of these apertures in each plate is arcuate and at its ends each has upwardly extending grooves. In operating the rocking lever, there is engagement of each opposing roller cam within each anterior and posterior plate and within the lever, by which each roller cam moves within the limits of a keyhole shaped aperture within the rocking lever.
The addition of a solenoid or equivalent electromagnetic device with a hollow stem and attached cam-retaining locking bar to any pre-existing mechanical lock is common to all embodiments of my steel wooden armored doors. With my invention, the assembling operator attaches a solenoid/cam retaining locking bar above the mechanical locking components previously installed within a hollow metal doorframe casing.
Accordingly, one purpose of my invention is to integrate mechanical lock components previously installed within hollow glass/metal doorframes with a variety of existing or future access controlled locking devices, particularly those of a proximity access code reader variety.
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