Coupling arrangement for lock device, and lock device

A coupling arrangement for a lock device, the coupling arrangement comprising:

• an input element rotatable about a rotation axis;
• an output element rotatable about the rotation axis;
• an engaging member movable between a first position and a second position;
• an electric motor arranged to affect movement of the engaging member between the first position and the second position;
• an actuating member arranged to be driven by the electric motor, and an engaging spring arranged to force the engaging member to move relative to the actuating member from the first position towards the second position, wherein the actuating member is movable between a first actuating position and a second actuating position, and wherein the engaging spring is arranged to force the engaging member to move from the first position to the second position when the actuating member moves to the second actuating position;
• a coupling member rotationally locked to the input element with respect to the rotation axis and axially movable relative to the input element along the rotation axis between a decoupled position, in which a rotation of the input element is not transmitted by the coupling member to a rotation of the output element, and a coupled position, in which a rotation of the input element is transmitted by the coupling member to a rotation of the output element, the coupling member comprising a circular track;
• and
• a transmission mechanism arranged to transmit a rotation of the coupling member to the axial movement of the coupling member from the decoupled position to the coupled position when the engaging member moves to the second position;
• wherein the electric motor is arranged to affect movement of the engaging member from the second position to a third position, wherein the second position lies between the first position and the third position;
• and
• wherein the engaging member is arranged to engage the track when the engaging member moves to the third position and the coupling member axially moves to the coupled position.