MOTOR VEHICLE LOCKING DEVICE

Abstract

The invention relates to a motor vehicle locking device comprising a locking mechanism having a rotary latch and at least one pawl, an actuating lever mechanism acting on the pawl, and a child safety device having a control element (1), wherein the control element (1) is latchable in at least two latching positions (R1, R2), and a spring element (3) on the control element (1), wherein the spring element (3) interacts with a control cam (2) in such a way that the control element (1) is adjustable in a spring-loaded manner into the latching positions (R1, R2), and wherein the spring element (3) is designed as a spring lip (3).

Claims

1. A motor vehicle locking device comprising: a locking mechanism having a rotary latch and a pawl, an actuating lever mechanism acting on the pawl, and a child safety device having a control element that includes a spring element, wherein the control element is latchable in at least two latching positions, and the spring element interacts with a control contour in such a way that the control element is adjustable in a spring-loaded manner into either of the latching positions, and wherein the spring element is a spring lip.

2. The motor vehicle locking device according to claim 1, wherein the spring lip has a thickened portion configured as a spring tab.

3. The motor vehicle locking device according to claim 1, wherein the spring lip is pivotable into the control element.

4. The motor vehicle locking device according to claim 1, further comprising a support, wherein the support is brought into engagement with the control element at least while the control element is being adjusted.

5. The motor vehicle locking device according to claim 4, wherein the support extends into a cavity of the control element.

6. The motor vehicle locking device according to claim 4, wherein the support is pivotable by the spring lip until the support abuts a stop surface of the control element.

7. The motor vehicle locking device according to claim 4, wherein the control element is made of a plastics material and is configured in one piece with the spring lip and the support.

8. The motor vehicle locking device according to claim 4, wherein the spring lip and the support are formed opposite one another on the control element.

9. The motor vehicle locking device according to claim 6, wherein the control element is pivotable via an engagement contour to adjust the control element.

10. The motor vehicle locking device according to claim 4, wherein the control element has an actuating lever that engages with the support.

11. The motor vehicle locking device according to claim 10, wherein the actuating lever has an actuating contour that engages with the support.

12. The motor vehicle locking device according to claim 1, wherein the control element is in engagement with a control contour that is part of a locking housing.

13. The motor vehicle locking device according to claim 1, wherein the control element includes a guide surface that acts as a stop for the control element.

14. The motor vehicle locking device according to claim 1, wherein the control element is cylindrical.

Description

[0022] In the drawings:

[0023] FIG. 1 is a three-dimensional view of an adjusting means in engagement with a control contour and a view of an engagement contour of the control element,

[0024] FIG. 2 is a three-dimensional view of the control element from the direction of the arrow II from FIG. 1, showing a view of the cavity in the control element with the support means arranged in the cavity,

[0025] FIG. 3 is a view of the control element according to FIG. 1 from the direction of the arrow III, showing the control element in its axial extent and in a side view, and

[0026] FIG. 4 is a section through the control element along the line IV-IV from FIG. 3 with an additional representation of an actuated spring lip or a support means.

[0027] A three-dimensional view of a control element 1 is shown in FIG. 1, wherein the control element 1 is in engagement with a control contour 2, wherein the control contour 2 can be part of a lock housing, for example. The control element 1 is shown in a first end position of a latching position R1, in which the spring lip 3 is in a relaxed position. A thickened portion 4 that can be described as pointed protrudes from the control contour 2, so that a first latching position R1 is assumed by the control element 1. The control element 1 can be pivoted clockwise in the direction of the arrow P and starting from the first latching position R1 shown in FIG. 1, so that the control element assumes the second latching position R2. The latching positions R1, R2 are illustrated in FIG. 1 by the position of an engagement contour 5. The latching position R1 corresponds, for example, to the functional position “child safety lock engaged,” whereas the latching position R2 reproduces the functional position of the control element 1 in which the child safety device is disengaged.

[0028] When the control element 1 is pivoted, the spring lip 3 or the thickened portion 4 is guided along the control contour 2. The control contour 2 forms a fixed abutment and is, for example, part of the lock housing. During the pivoting of the control element 1 in the clockwise direction, the thickened portion 4 or the spring lip 3 is pivoted into the control element or bent into the control element 1. The maximum pivoting of the spring lip 3 takes place in the center 6 of the control contour 2, wherein the spring lip 3 is pivoted to a maximum extent into the control element 1.

[0029] A view of the control element 1 from the perspective of the arrow II from FIG. 1 is shown in FIG. 2. An actuating contour 7 formed in one piece on the control element 1, a cavity 8, a support means 9, a guide surface 10 and a recess 11 can be seen, wherein the recess 11 extends around the spring lip 3 and the thickened portion 4. It can be clearly seen that the support means 9 extends into the cavity as an oval support means 9. The cavity 8 surrounds the support means 9 circumferentially so that, on the one hand, a spring deflection for the spring lip 3 and, on the other hand, a spring deflection for the support means 9 are provided. The guide surface 10, with an edge 12 of the control element 1, forms a guide and fastening means for the control element 1, wherein at the same time the guide surface 10 can also provide, for example, a stop 13 for the control element 1.

[0030] A side view of the control element 1 is shown in FIG. 3. It can be seen that the control element 1 can be described as substantially cylindrical and extending along an axis A. However, it can also be seen clearly that the spring lip 3 extends, starting from a first axial end 14 of the control element 1, in the direction of the engagement contour 5, wherein the spring lip 3 has a first region 15 which is made of the same material with a uniform thickness. This first region 15 can also be described as a spring region 15.

[0031] The spring region 15 is followed by a continuously thickened region which ends almost in a point so that the spring lip 3 ends in a thickened portion 4. The thickened portion 4 is provided with a radius at the end, which enables easy sliding on the control contour 2. In particular, the radius on the thickened portion 4 can serve to move the control element slightly, but also to minimize noise during the adjustment of the control element 1. The support means 9 extends from a further axial end 16 of the control element 1 in the direction of the spring lip 3. The spring lip 3 and the support means 9 are thus formed opposite one another on the control element 1.

[0032] A section along the line IV-IV from FIG. 3 is shown in FIG. 4. The opposing connection regions 14, 16 for the spring lip 3 and the support means 9 on the control element 1 can be clearly seen. If the control element 1 is now moved from the first latching position R1 into the second latching position R2, the spring lip 3 in the center 6 of the control contour 2 is pivoted to a maximum extent into the cavity 8. The pivoting inward takes place via a force F, which introduces the housing 17 or the control contour 2 on the housing 17 into the control element 1. As a result of the force F, the spring lip 3 is bent or pivoted into the cavity 8, wherein the spring lip 3 comes into engagement with the support means 9.

[0033] The position of the spring lip 3 and the support means 9 in the maximum pivoted position is additionally shown as a dashed line in FIG. 4. It can be seen that a rear wall 18 of the cavity 8 offers a stop surface 18 for the support means 9. The support means 9 thus serves as an abutment for the spring lip 3, wherein the support means can support itself on the cavity 8. As a result, maximum long-term stability of the control element 1 is provided and higher spring forces can be implemented on the control element 1. The construction according to the invention of the control element from the spring lip 3 and the support means 9 thus increases the functional reliability, the spring force and the long-term stability of the control element. Consequently, a high degree of functional reliability can also be achieved with higher-strength plastics material, in particular glass-fiber reinforced plastics materials.

LIST OF REFERENCE SIGNS

[0034] 1 control element [0035] 2 control contour [0036] 3 spring lip [0037] 4 thickened portion [0038] 5 engagement contour [0039] 6 center of the control contour [0040] 7 actuating contour [0041] 8 cavity [0042] 9 support means [0043] 10 guide surface [0044] 11 recess [0045] 12 edge [0046] 13 stop [0047] 14, 16 axial end [0048] 15 first region, spring region [0049] 17 housing [0050] 18 wall, stop surface [0051] R1, R2 latching position [0052] P arrow [0053] A axis [0054] F force