Closing device for closing functions in vehicles in particular

Closing device for performing closing functions especially in motor vehicles,

• with a closing cylinder (10), which comprises a freewheel sleeve (12) and a cylinder core (11) with tumblers (15, 15′), the core being supported in the sleeve with freedom of rotation;
• where the tumblers (15, 15′) can be controlled by an insertable key but lock the cylinder core (11) to the freewheel sleeve (12) after the key has been removed;
• with a stationary housing (13), in which the freewheel sleeve (12) is held with freedom of rotation and in which the freewheel sleeve (12) is prevented in the normal case (55) from rotating (51, 52) by radially spring-loaded (28, 29) locking control elements (21, 22), but is released by the locking control elements (21, 22) in the overload case (56);
• with a working element (40), which performs the closing function in the motor vehicle;
• and
• with a coupling slider (30), which is prevented from rotating with respect to the working element (40) but which is free to slide radially (37), which slider is connected (51;
• 52) to the cylinder core (11) by a restoring force (33;
• 33′) in the normal case but is disconnected from it in the overload case;
• where an axial connection (35;
• 36) allows the coupling slider (30;
• 30′) to move in the radial direction (57;
• 37;
• 37′) together with the locking control element (21;
• 22), but where the slider is free to rotate between various rotational positions of the closing cylinder (10) when the cylinder core (11) is turned by a key;
• and
• where the spring-loading (28;
• 29) of the locking control element simultaneously produces the restoring force (33;
• 33′) acting on the coupling slider (30), wherein
• the closing cylinder (10) has at least two key removal positions (45;
• 46) rotationally offset (49) from each other, in which the key can be freely inserted into the cylinder core (10) and pulled back out again, and in each of which positions the freewheel sleeve (12) has locking means (25 or 26′) for the tumblers (15, 15′);
• wherein
• the angular position (49) of the coupling slider (30, 30′) can be changed by rotation of the cylinder core (11) back and forth between at least two rotational angles (47;
• 48) determined by the key removal positions (45;
• 46), the slider also being free to move radially in the direction of each of these rotational angles (47;
• 48);
• wherein
• several locking control elements are provided, at least one of which is assigned to each of the rotational angles (47;
• 48) determining the key removal positions (45, 46);
• and wherein
• the radial movement (57) of the rotationally offset (49) locking control elements (21;
• 22) which occurs on the transition between the normal case (55) and the overload case (56) occurs in the same direction as the associated rotational angle (47;
• 48) of the coupling slider (30;
• 30′).