ELECTRONIC DOOR LOCK OPERATING DEVICE
The present invention relates to an electronic door lock operating device (3) configured to operate a door lock (5) by moving a lock bolt (9) of an associated lock case (7), the device (3) comprising an electric motor (21), a lock bolt operating member (25), the lock bolt operating member (25) being connectable to a lock bolt following member (27) of a door lock (5), and a coupling arrangement (23) for connecting the motor (21) to the lock bolt operating member (25). The coupling arrangement (23) comprises a first coupling member (35), which is fixedly mounted on a rotatable output shaft (37) of the motor (21), a second coupling member (39), which is rotatably and axially displaceably mounted on a coupling shaft (37), the second coupling member (39) being movable along said coupling shaft (37) between a first disengaged position, to which it is biased by a biasing element (43) and in which the motor (21) is disconnected from the lock bolt operating member (25), and an engaged position, in which the second coupling member (39) is arranged to rotate with the first coupling member (35) and in which said coupling arrangement (23) connects the motor (21) to the lock bolt operating member (25), a guide device (41, 61, 63) arranged to, when the second coupling member (39) is in a disengaged position, prevent the second coupling member (39) from rotating with the first coupling member (35), and a ramp device (56) comprising at least one ramp surface (53, 55) and configured to, upon rotation of the first coupling member (35) relative to the second coupling member (39), move the second coupling member (39) from said firstdisengaged position to said engaged position.