Locks – Operating mechanism – Using a powered device
Patent
1993-04-01
1997-02-25
Boucher, Darnell M.
Locks
Operating mechanism
Using a powered device
70277, 70408, E05B 4900
Patent
active
056050666
ABSTRACT:
The invention relates to an electromechanical lock arrangement including a lock body (1), which is provided with a cylinder lock mechanism (3) having a key channel (17) and a turnable lock cylinder (16), a dead bolt (2) movable back and forth by means of the cylinder lock mechanism (3), electrically operable latch means (7) for controlling the operation of the dead bolt (2) and a logic unit (8) for controlling said electrically operable latch means (7). The arrangement includes further a key unit (4) having a mechanical key member (4a) for operating the cylinder lock mechanism (3) as well as means for supplying electric power and means for sending a coded electrical signal into said logic unit (8). At the reception of a correct code the logic unit (8) is arranged to switch current to said electrically operable latch means (7) so that they allow said dead bolt (2) to be moved from its protruding locking position into its withdrawn releasing position in the lock body (1). The supplying of a code and electric power is accomplished through said mechanical key member (4a) at the inner end of the key channel (17) of the cylinder lock mechanism (3) by making use of a coupling arrangement, which includes a first electrically conductive coupling element (18) turnable with the lock cylinder (16) and arranged in electric contact with the mechanical key member (4a), and a second electrically conductive coupling element (19) stationarily installed in the lock body (1) and connected through the logic unit (8) to said electrically operable latch means (7), whereby said first coupling element (18) is by means of the mechanical key member (4a) arranged to be turned at the position of the second coupling element (19) for enabling said supply of a code and electric power.
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Abloy Security Ltd Oy
Boucher Darnell M.
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