Self-locking electronic lock
First Claim
1. A self locking electronic lock for use with a safe door having manually operated bolt works including a door handle, linkage operated by said handle and door bolts operated by said linkage, said linkage having a lock bolt receiving gate whereby said linkage is immobilized when a lock bolt is received in said gate to thereby lock said safe door, said electronic lock comprising:
- a biased lock bolt and mounting means for mounting said lock bolt relative said linkage whereby said bolt is normally biased into said linkage gate when aligned thereto in a linkage locking position and biased against said linkage when not aligned to said gate, in a linkage engaging position whereby manipulation of said linkage by said handle to align said gate to said lock bolt causes said lock bolt to automatically enter said gate due to its bias toward such linkage locking position; and
blocking means for normally blocking withdrawal of said bolt from said linkage gate after said bolt has entered said gate.
2 Assignments
0 Petitions
Accused Products
Abstract
A self-locking electronic lock system is illustrated in association with safe doors having a door locking bolt works manipulated between door open and door locked positions by a door mounted handle. The bolt works includes a link which moves the door bolts and in turn is locked by an electronic lock in accordance with the present disclosure. The elctronic lock has a spring bias bolt normally biased into a locking gate provided on the link and is operated to a withdrawn position by an associated digital input electronic signal generating means. A lost motion connection is provided between an electric motor of the lock and the lock bolt such that the motor withdraws the lock bolt on entry of a correct combination to the digital input means and the lock bolt is biased back into locking engagement with the link gate by operation of an operator closing the safe door and manipulating the door handle to throw the door bolts into engagement with the safe door jamb, the electronic lock bolt automatically locking up with the bolt works link to prevent reopening of the door until the combination is entered again due to the bias of the lock bolt toward the link gate.
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Citations
25 Claims
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1. A self locking electronic lock for use with a safe door having manually operated bolt works including a door handle, linkage operated by said handle and door bolts operated by said linkage, said linkage having a lock bolt receiving gate whereby said linkage is immobilized when a lock bolt is received in said gate to thereby lock said safe door, said electronic lock comprising:
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a biased lock bolt and mounting means for mounting said lock bolt relative said linkage whereby said bolt is normally biased into said linkage gate when aligned thereto in a linkage locking position and biased against said linkage when not aligned to said gate, in a linkage engaging position whereby manipulation of said linkage by said handle to align said gate to said lock bolt causes said lock bolt to automatically enter said gate due to its bias toward such linkage locking position; and blocking means for normally blocking withdrawal of said bolt from said linkage gate after said bolt has entered said gate. - View Dependent Claims (2, 3, 4, 5)
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6. An electrically operated lock having a housing and comprising:
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a spring biased bolt and mounting means for mounting said bolt to said housing for movement inward and outward of said housing, said bolt being normally biased outwardly of said housing; an electric motor and connecting means between said motor and bolt for moving said bolt inwardly of said housing against its bias by operation of said motor; electrical means for selectively operating said motor to move said bolt via said connecting means; and blocking means for normally blocking inward movement of said bolt after it has moved outward under its bias to impede unauthorized movement of said bolt; and release means associated with said connecting means and said blocking means to cause said blocking means to release said bolt for authorized inward movement of said bolt when said electrical means selectively operates said motor and connecting means. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A self locking electronic lock system for use with safe doors having a door locking bolt works manipulated between door open and door locked positions by a door mounted handle, said lock system comprising:
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an electronic lock combination entry means for receiving a predetermined lock opening combination and signal generating means for generating an electrical signal when said lock opening combination is entered; a lock bolt and means for mounting said lock bolt for movement into and out of a bolt works locking position; electric motor means operable by said signal and connecting means between said motor and bolt for moving said bolt on operation of said motor; and blocking means for normally blocking unauthorized movement of said lock bolt out of said bolt works locking position, said blocking means being operable to allow movement of said lock bolt out of said bolt works locking position only when said electric motor means is operated by said signal and said connecting means is operated to move said bolt. - View Dependent Claims (13, 14)
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15. An electronic door lock for use with a human passage door having a spring biased cam bolt which deflects inwardly of the door on closing of the door relative an associated door jamb and which moves under its spring bias into a bolt receiving receptacle in the jamb when the door is in its closed position, said electronic door lock comprising:
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electrical motor means for withdrawing said cam bolt against its bias inwardly of said door and out of said receptacle on actuation thereof; an electronic code entry means on an accessible side of said door for manual entry of a predetermined code; and circuit board means electrically connected to said code entry means and to said electrical motor means for actuating said motor means to withdraw said cam bolt from said receptacle upon entry of said predetermined code via said code entry means. - View Dependent Claims (16, 17, 18)
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19. An electrically operated spring bolt lock for controlled access door having a fixed handle which is not connected to said bolt, comprising:
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a cam bolt and means for mounting it in said door for movement inwardly and outwardly of said door; spring means for normally biasing said bolt outwardly of said door; electrically driven means for moving said bolt inwardly of said door against the bias of said spring means for a given time interval to allow opening of said door by said fixed handle and for releasing said bolt after the expiration of said time interval; and code entry means for actuating said electrically driven means upon entry therein of a predetermined code. - View Dependent Claims (20, 21, 22)
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23. An automatically operated electronically controlled door unlocking and locking system comprising:
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a bolt having a cam end face and means for mounting said bolt for movement inwardly and outwardly of said door with said cam end face opposing an adjacent door jamb as said door is closed; spring biasing means for biasing said bolt outwardly of said door, while allowing deflective movement of said bolt inwardly of said door as it is closed relative said jamb, whereby said bolt is receivable in a receptacle in said jamb; an electric motor and connecting means between said motor and bolt for moving said bolt inwardly of said door against its bias by operation of said motor to a bolt withdrawn position and for releasing said bolt to a bolt protracted position; and electrical means, including a code entry means for entry of a predetermined code, for operating said motor to initially withdraw said bolt inwardly of said door on entry of said code to allow opening of said door and automatically, subsequent thereof, to release said bolt. - View Dependent Claims (24, 25)
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Specification