Lock actuator, and park lock comprising such a lock actuator

An electromagnetic lock actuator (1) for a park lock (2), which is arranged in a longitudinal axis (X-X), comprising:

• an electromechanically movable and actuatable actuating element (10), which can be moved into a first position (A) and into a second position (B) and comprises a locking slotted guide (20), the locking slotted guide (20) comprising a sleeve, the sleeve being arranged on the actuating element (10);
• and
• at least one locking element (15) which is held displaceably relative to the locking slotted guide (20) to fix a cylinder (70) in the first position (A),
• wherein the locking slotted guide (20) has a first surface (21) and a second surface (22), which are connected to a gradient (M1) by a wedge surface (23),
• wherein the first surface (21) contacts the at least one locking element (15) in the first position (A), and wherein the second surface (22) contacts the at least one locking element (15) in the second position (B),
• wherein the first surface (21) is inclined in relation to the wedge surface (23) with a second gradient (M2),
• wherein a return spring (14) is provided, the return spring (14) holding the actuating element (10) in a preloaded actuator starting position in the first position (A),
• wherein the slotted guide (20) is held against a flange (26) of the actuating element (10) by means of the return spring (14), such that the first surface (21) forces the at least one locking element (15) to fix the cylinder (70) in the first position (A), and
• wherein the at least one locking element (15) is held within at least one notch (76, 77) of a sliding bush (75) in the first position (A), the at least one notch (76, 77) being defined by at least one surface such the at least one locking element (15) simultaneously contacts the at least one surface at two contact areas (C1, C2) in the first position (A).