Electronic locking arrangement

Claim 2

Electronic locking arrangement for operation with a door having a latch bolt projecting outwardly from the door and with the latch bolt having a flat shoulder and a camming surface, said arrangement comprising a strike latch to be disposed in the door jamb for the door, said strike latch having a flat shoulder for engagement with the bolt shoulder when the door is in its locked condition and a camming surface for riding against the bolt camming surface when the door is returning to its locked condition, pivot means for said strike latch, stop means for inactivating said pivot means, mechanical puller means for disengaging said stop means to permit said strike latch to pivot whereby said door may be pushed open, electronic actuating means for said puller means, said stop means including a pivotable flap having a frontal surface disposed toward said strike latch, said puller means including a flap actuating means having an actuating portion in the path of motion of said frontal surface of said flap, and motion transmitting means for moving said flap actuating means in a direction away from said strike latch to cause said flap to move to an unlocking position.

Claim 3

The arrangement of claim 1 including resilient means urging said flap in its locking position to automatically return said flap to its locking position upon the opening of the door.

Claim 4

The arrangement of claim 2 wherein said stop means further includes a first latch stop mounted for pivotal movement with strike latch, said flap in its locking position being disposed in the path of motion of said latch stop to prevent pivotal movement of said latch stop and of said strike latch, said flap in its unlocking position being disposed out of the path of movement of said latch stop, said flap actuating means further including a puller arm and a flap holder disposed adjacent said puller arm, and said flap holder being disposed for abutting against said latch stop when said flap is in its unlocking position to maintain said flap in its unlocking position until said latch and said latch stop have been pivoted during the opening of the door.

Claim 5

The arrangement of claim 3 wherein said motion transmitting means comprises a swivel bracket, one end of said swivel bracket engaging both said puller and said flap holder to cause joint movement of both said puller and flap holder upon the application of force to the other end of said swivel bracket.

Claim 6

The arrangement of claim 4, wherein said electronic actuating means includes a solenoid having a plunger disposed for moving against said other end of said swivel bracket upon energization of said solenoid, and said solenoid being mounted to a removable end plate of the housing for the components of said arrangement.

Claim 7

The arrangement of claim 5, wherein said flap has a shoulder, said latch stop having an undercut for resting on said flap shoulder in its locking position, said latch stop having a shoulder at its upper edge above said undercut, said stop having an end face between its shoulder and said undercut, said flap holder being disposed for resting on said latch stop shoulder when said flap is in its locking position, said flap holder being disposed for abutting against said end face when said flap is in its unlocking position and before the door has been opened to prevent said flap from returning to its locking position, and resilient means reacting against said flap holder.

Claim 8

The arrangement of claim 2, including a guide bracket, said guide bracket having guide surfaces for maintaining said flap actuating means in its proper position during its movement thereof, and said resilient means reacting between said flap and said guide bracket.

Claim 9

The arrangement of claim 7, including a housing for the components of said arrangement, and a removable cover for said housing to expose said components.

Claim 10

Th arrangement of claim 2, wherein said stop means further includes a latch stop mounted for pivotal movement with said strike latch, said flap in its locking position being disposed in the path of motion of said latch stop to prevent pivotal movement of said latch stop and of said strike latch, said flap in its unlocking position being disposed out of the path of motion of said latch stop, and said flap actuating means having an end face disposed for abutment against said latch stop when said flap is in its unlocking position to maintain said flap in its unlocked position until said latch and said latch stop have been pivoted during the opening of the door.

Claim 11

The arrangement of claim 9, wherein said motion transmitting means comprises a swivel bracket, and one end of said swivel bracket engaging said flap actuating means.

Claim 12

The arrangement of claim 10, wherein said electronic actuating means includes a solenoid having a plunger disposed for moving against said other end of said swivel bracket upon energization of said solenoid, and said solenoid being detachably mounted to a wall of the housing for the components of said arrangement.

Claim 13

The arrangement of claim 1, in combination with said door, an internal handle on said door connected to said latch bolt, and said internal handle being movable to retract said latch bolt away from said strike latch and permit said door to be opened while said strike latch is in its locking position.

Claim 14

The arrangement of claim 1 wherein said actuating portion is an offset portion at said frontal surface of said flap.

Claim 15

The arrangement of claim 1 wherein an area keyport is provided adjacent said door, a master console being disposed remote from said door, said master console having at least one keyport corresponding to said area keyport and coded key means for insertion into each of said keyports initiating operation of said electronic actuating means.

Claim 16

The arrangement of claim 14 including scanning means between said keyports for detecting when corresponding coded key means are in said keyports.

Claim 17

Electronic locking arrangement for operation with a door having a latch bolt projecting outwardly from the door and with the latch bolt having a flat shoulder and a camming surface, said arrangement comprising a strike latch to be disposed in the door jamb for the door, said strike latch having a flat shoulder for engagement with the bolt shoulder when the door is in its locked condition and a camming surface for riding against the bolt camming surface when the door is returning to its locked condition, pivot means for said strike latch, stop means for inactivating said pivot means, mechanical puller means for disengaging said stop means to permit said strike latch to pivot whereby said door may be pushed open, electronic actuating means for said puller means, said actuating means including a solenoid disposed adjacent said puller means, an area keyport having electrical means for energizing said solenoid, a master console remote from said area keyport and having a plurality of individual keyports, one of said individual keyports corresponding to said area keyport, coded key means for fitting in said area keyport and in said one individual keyport, and scanning means between said area keyport and said master console for cyclically scanning said keyports and energizing said solenoid when said area keyport and said one individual keyport have identical coded key means inserted therein.

Claim 18

Electronic locking arrangement for operation with a door having a latch bolt projecting outwardly from the door and with the latch bolt having a flat shoulder and a camming surface, said arrangement comprising a strike latch to be disposed in the door jamb for the door, said strike latch having a flat shoulder for engagement with the bolt shoulder when the door is in its locked condition and a camming surface for riding against the bolt camming surface when the door is returning to its locked condition, pivot means for said strike latch, stop means for inactivating said pivot means, mechanical puller means for disengaging said stop means to permit said strike latch to pivot whereby said door may be pushed open, electronic actuating means for said puller means, said actuating means including a solenoid disposed adjacent said puller means, an area keyport having electrical means for energizing said solenoid, a master console remote from said area keyport and having a plurality of individual keyports, one of said individual keyports corresponding to said area keyport, coded key means for fitting in said area keyport and in said one individual keyport, and scanning means between said area keyport and said master console for cyclically scanning said keyports and energizing said solenoid when said area keyport and said one individual keyport have identical coded key means inserted therein.