Locking device

Abstract

The invention relates in particular to a locking device (10) for a motor vehicle, comprising a latch (11) which is fastened to a mounting plate (15) in a setpoint position (17) and which can be transferred from the setpoint position (17) into a spacing position (18) in the event of an accident as a result of a threshold force being exceeded, characterized in that the latch (11) can be moved into the spacing position (18) from the setpoint position (17). The mounting plate (15) comprises at least one opening (19, 20) through which an axial section (24) of the latch (11) passes, and wherein a material region (26) of the mounting plate (15), which material region is arranged at a through opening (33) of the opening (19, 20), is deformed to abut against an outer circumferential surface (25) of the axial section of the latch (11) located in a target position (17).

Description

Technical Field

[0001] The invention primarily relates to a closure device according to claim 1 . Background Art

[0002] The applicant has been working on the development and production of such locking devices for motor vehicles for several decades.

[0003] A locking device of this type in the prior art is disclosed in DE 10 2021 101 188 A1 of the applicant.

[0004] Claim 1 relates to a locking device for a motor vehicle. A motor vehicle in the broadest sense of the invention can be a passenger car or a commercial vehicle. The locking device can be used in particular to lock a door element, such as a vehicle side door, a vehicle hood or a trunk lid, or another movable part of a motor vehicle, in a closed position fixedly and reliably relative to the vehicle body and to enable the door element to be opened when necessary. For this purpose, the locking device usually comprises a locking catch and a rotary latch. The rotary latch can, for example, restrain the locking catch in the locked position by means of a rotary latch opening.

[0005] In a first variant, the latch can be arranged on the body side and the rotary latch on the door side. The invention also encompasses a geometrically inverted arrangement.

[0006] In the event of a collision or accident, the door element or the vehicle body can also deform. In order to enable the door to be opened even after an accident, the prior art patent application described at the outset already discloses the possibility of designing the latch to be displaceable in the event of a collision. In the prior art devices, the latch is fixed in a nominal position on the mounting plate and can be displaced axially by material deformation in the event of a collision when a threshold force is exceeded. Due to the axial displacement, the door can be opened more easily after a collision.

[0007] This patent application is concerned with fastening the lock to the mounting plate and setting the threshold force as accurately as possible.

[0008] In the prior art devices, the lock has a convex deformable area. When a load force exceeding a threshold is applied, these convex areas may deform and the lock may slide through the opening in the mounting plate and reach the spaced position.

[0009] The locking devices of the prior art meet all operational and legal requirements. There is still a need to further develop this technology. Summary of the invention

[0010] Starting from this, the object of the present invention is to further develop the locking device in such a way that the exact setting of the threshold force is improved.

[0011] The present invention solves this task by utilizing the features of claim 1, in particular the features of the characterizing part, and is characterized thereby in that the mounting plate comprises at least one opening through which the axial section of the lock passes, wherein a plurality of material areas of the mounting plate arranged at the through-mouth portion of the opening are deformed so as to abut against the outer peripheral surface of the axial section of the lock located in the rated position.

[0012] The principle of the invention is mainly to deform a plurality of material regions of the mounting plate in order to fix the locking catch on the mounting plate. According to the invention, those material regions of the mounting plate which are arranged at the opening of the opening are deformed.

[0013] Deformation is carried out like this, and makes material area deform against the outer peripheral surface of locking catch, promptly abuts on the outer peripheral surface of the axial section of locking catch.Here, when locking catch is in the rated position, promptly deformation occurs during installation.

[0014] While in the prior art several material regions of the latch are already deformed in the event of a crash, according to the invention a deformation of the material region of the mounting plate is performed.

[0015] These predetermined deformation zones are no longer arranged on the locking catch as in the prior art, but are now located on the mounting plate.

[0016] In this context, a method can be used within the scope of the invention, which uses a pressing body of, for example, a funnel-shaped construction. Such a funnel-shaped body can, for example, press against a material region of the mounting plate in the vicinity of the opening of the mounting plate arranged in the mounting plate during a swinging motion and thus ensure a radial material flow inwards or a material lock with a radial component in the material region of the mounting plate - with respect to the central longitudinal axis of the axial section of the latch. The mounting plate thus contracts radially, so to speak, and clamps or presses the latch onto itself. This tightening due to the clamping allows the latch to be reliably fixed to the mounting plate under normal circumstances during the service life of the motor vehicle. In the event of a collision, when a threshold force is exceeded, this clamping or press fit or clamping can be canceled, and the latch can slide through one or more openings in the mounting plate and transfer from the rated position to the spacing position.

[0017] Therefore, the locking device according to the present invention comprises a lock catch that is changed relative to the prior art and is maintained on the mounting plate. In the prior art, only a convex expansion is provided on the lock catch for maintenance, while according to the present invention, a corresponding clamping seat is realized by the deformation of the mounting plate.

[0018] This method allows an optimized, very precisely defined material flow from the material area radially inwards. As a result, the threshold force required to cancel the axial retention of the latch relative to the mounting plate in the event of a crash can be precisely set and defined.

[0019] The invention relates to a locking device for a motor vehicle, for example, a door lock or a hood lock. The locking device comprises a lock catch. The lock catch can be constructed in a U-shape or a substantially U-shape, for example.

[0020] The invention also includes a locking buckle that is configured to extend substantially axially and longitudinally and includes only one leg.

[0021] It is essential for the invention that the locking catch according to the invention has at least one leg, to which the rotary latch can be locked.

[0022] The locking device according to the invention provides that the locking catch is fixed in a nominal position on the mounting plate. The nominal position describes all normal states over the service life of the motor vehicle. Under normal circumstances, ie, without an accident, the locking catch is fixed to the mounting plate in an immovable manner, ie, axially fixed with respect to the mounting plate.

[0023] In the event of an accident or a collision, it may happen that a force acting in the axial direction is applied to the latch. An accident situation may occur, for example, when a deformation occurs (e.g., a deformation of the door or a deformation of the body) due to a collision of the motor vehicle with another object, obstacle or vehicle. However, the accident situation of the present patent application also includes the situation that a safety device of the motor vehicle, such as a pedestrian protection device, detects a dangerous situation and, for example, actuates an actuator, which displaces a door, such as a front hood of the motor vehicle, and, for example, transfers it to a pedestrian protection position, in which, for example, a spaced position from the body is reached in order to provide a crumple zone for pedestrian accidents.

[0024] In the event of an accident, by applying a force axially to the locking catch, the locking catch can nevertheless be displaced relative to the mounting plate from the nominal position and transferred into the spaced position.

[0025] The spaced position can be achieved by displacing the latch along a movement path of, for example, more than 10 mm, for example more than 30 mm, in particular more than 40 mm, for example more than or in particular more than 50 mm.

[0026] This displacement of the latch from the nominal position into the spacing position is only possible due to exceeding a threshold force. The threshold force may be, for example, between 1 kN and 3 kN. However, these values ​​are only exemplary.

[0027] The mounting plate has at least one opening. The mounting plate may also have two or more openings.

[0028] The mounting plate has a plurality of material regions arranged at the through-opening of the opening. The plurality of material regions thus enclose the through-opening of the opening or provide the through-opening edge region on the mounting plate side. The opening is penetrated or traversed by an axial section of the latch.

[0029] During the production of the locking device, such pressure is applied to the material region by means of a pressure body, which in particular performs a swiveling movement, so that the material region flows radially inwards. This results in a material deformation. The material deformation is performed in such a way that the material region is deformed toward the outer circumference of the axial section of the locking catch in the desired position and lies against the outer circumference of the axial section. The locking catch is thus surrounded on the outside. This results in clamping, pressing or fitting.

[0030] The deformation force and the deformation path are designed in such a way that the threshold force is precisely determined. The threshold force is selected in such a way that under normal circumstances, the lock catch is permanently and reliably fixed to the mounting plate in an immovable manner over the service life of the vehicle, i.e., in the absence of a crash. At the same time, the threshold force can be set in such a way that, over the service life of the vehicle, the lock catch is always reliably displaced from the nominal position to the spaced position when a threshold force, for example 1 kN or another arbitrarily set threshold force, is exceeded.

[0031] According to an advantageous embodiment of the invention, the material region of the mounting plate arranged at the opening of the opening is deformed along a plurality of circumferential regions of the outer circumferential surface of the axial section so as to abut against the outer circumferential surface of the axial section of the latch in the nominal position. This embodiment of the invention enables a particularly reliable and precise setting of the threshold force, since the deformation movement is distributed over a plurality of circumferential regions.

[0032] According to an advantageous embodiment of the invention, the material region of the mounting plate arranged at the opening of the opening is deformed annularly in such a way that it abuts against the outer circumference of the axial section of the latch in the nominal position. This embodiment of the invention enables a particularly optimal and reliable setting of the precise region for the threshold force, since the contact force is distributed over the entire outer circumference of the axial section.

[0033] According to an advantageous embodiment of the invention, the material region is annularly caulked. In this embodiment of the invention, the pressure body surrounds the central longitudinal axis of the axial section. This embodiment of the invention enables the use of particularly suitable, in particular funnel-shaped, pressure bodies.

[0034] According to an advantageous embodiment of the invention, the material region is caulked in an annular manner in a swiveling manner. This embodiment of the invention enables a particularly reliable and precise setting of the threshold force.

[0035] According to an advantageous embodiment of the invention, the material regions of the mounting plate arranged at the two openings of the opening are deformed so as to bear against the outer circumference of the axial section of the latch in the nominal position. This embodiment of the invention makes it possible to distribute the pressing force to two different axial regions of the axial section and thus to homogenize the deformation movement and thus to define the threshold force particularly precisely.

[0036] According to an advantageous design of the present invention, the mounting plate has at least two openings for two different axial sections of the latch. This design of the present invention is particularly suitable for stably fastening a latch having two axial legs on the mounting plate.

[0037] According to an advantageous design of the present invention, the material region of the mounting plate arranged at the opening of the first opening and the material region of the mounting plate arranged at the opening of the second opening are deformed to abut against the outer circumference of the corresponding axial section of the lock in the rated position. This design of the present invention enables the threshold force to be set particularly reliably within a preset threshold force range, because the decisive deformation distribution of the force is set to different ranges.

[0038] According to an advantageous embodiment of the present invention, the locking catch is configured to be elongated in the axial direction. This embodiment of the present invention enables the use of conventional locking catches.

[0039] According to an advantageous design of the present invention, the lock buckle is configured in a U-shape or substantially in a U-shape. This design of the present invention enables the use of a lock buckle of a conventional structural form.

[0040] According to an advantageous design of the invention, the adjustment travel of the latch from its nominal position to its spaced position is at least 20 mm, in particular at least 40 mm, and further in particular at least 50 mm. This design of the invention enables a particularly advantageous and collision-proof design of the locking device.

[0041] According to an advantageous embodiment of the invention, a plurality of stop surfaces are arranged on the locking catch, which limit the axial displacement movement of the locking catch in one direction or in two directions. This embodiment of the invention enables a particularly reliable construction of the locking device.

[0042] According to an advantageous embodiment of the invention, the locking catch expands radially in an axial region which is directly adjacent to the axial section and which is directly adjacent to the material region. This embodiment of the invention allows a particularly optimized and reliable setting of the threshold force along a precisely predeterminable range and allows simple production.

[0043] According to an advantageous embodiment of the invention, the radial expansion of the locking catch is designed in the shape of a projection. This embodiment of the invention enables particularly optimal and reliable setting of the threshold force along a precisely predeterminable range and enables simple production of the locking device.

[0044] The invention also relates to a method according to claim 15 .

[0045] Based on a closure device of the type mentioned in the introduction, it is an object of the present invention to specify a method with which a closure means can be produced in a particularly advantageous manner.

[0046] The invention achieves this object with the features of claim 15 .

[0047] The method according to claim 15 is best understood by recognizing the features of the claims relating to the locking device and the preceding embodiments.

[0048] In contrast to the prior art, in the method according to the invention, no deformable projection is provided on the latch which defines the threshold force, but rather a material region of the mounting plate is deformed so that it bears against the outer circumference of the axial section of the latch. The threshold force can thus be set in a precise and accurately predeterminable manner.

[0049] According to an advantageous embodiment of the invention, step d) is performed in such a way that an annular contact of the material region of the mounting plate against the outer circumference of the axial section is achieved. This embodiment of the invention enables a particularly precise setting of the threshold force.

[0050] According to an advantageous embodiment of the invention, step d) is performed by means of a pressure body, in particular a funnel-shaped pressure body, which performs an impact movement and / or a pivoting movement in order to achieve a material flow directed radially inwards.

[0051] This embodiment of the invention enables in a particularly simple manner the desired material flow of the material region of the mounting plate radially inwards relative to the central longitudinal axis of the axial section.

[0052] According to an advantageous design of the present invention, the following steps are performed after step d):

[0053] e) deforming the locking catch to achieve a radial expansion at an axial region directly adjacent to the axial section and directly adjacent to the material region.

[0054] This design of the present invention enables accurate setting of the threshold force.

[0055] According to an advantageous embodiment of the invention, a locking catch is provided for carrying out step e), which locking catch comprises a radial step. This embodiment of the invention enables a particularly simple possibility of providing the locking catch and the radial expansion in a particularly simple manner.

[0056] According to an advantageous design of the present invention, step e) comprises the following steps:

[0057] f) Caulking the radial steps.

[0058] This embodiment of the invention allows particularly simple production.

[0059] The invention also relates to a fastening device according to claim 21 .

[0060] The object of the present invention is to provide a fastening device which, with the aid of rivets, can fix two main bodies relative to one another in a simple manner.

[0061] The invention achieves this object with the features of claim 21 .

[0062] The principle of the present invention mainly lies in providing two main bodies, namely a first main body and a second main body, wherein the two main bodies can be formed of plates, for example. Each main body has an opening, wherein the two openings are arranged in alignment with each other.

[0063] The rivet passes through the two openings. The rivet has an axial section with a first end and a second end. At the first end, the axial section has a rivet head, which is radially expanded. The rivet head is therefore radially larger than the opening and fixes the rivet axially to the first body. For this purpose, the rivet head has a retaining surface arranged on the expansion. The retaining surface contacts the first body.

[0064] The axial section is not equipped with such a rivet head at its second end. Instead, here, similar to the invention described above, the material area of ​​the second body is deformed, and the special designs of these inventions can also be applied in a similar manner according to the invention in the subject matter of claim 21.

[0065] Again, the material region of the second body arranged at the opening of the second opening is deformed. Due to the deformation, the material region abuts, ie is pressed against, the outer circumference of the axial section.

[0066] In this case, therefore, in the region of the second end of the axial section, a clamping connection or a press-fit connection between the second body and the rivet is realized, in particular in the manner described above.

[0067] The invention includes that the two bodies are fixed immovably relative to each other. Alternatively, the two bodies can also be fixed pivotably to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Further advantages of the device according to the invention emerge from the uncited dependent claims and from the following description of the exemplary embodiments shown in the drawings.

[0069] Here it is shown:

[0070] Figure 1 A first exemplary embodiment of a locking device according to the invention is shown in a schematic perspective view, with a locking catch and a mounting plate in a desired position.

[0071] Figure 2 In a schematic oblique view, roughly along Figure 1 The view arrow II shows Figure 1 The locking device

[0072] Figure 3 Show Figure 2 An embodiment having a locking catch in a spaced position,

[0073] Figure 4 In a schematic diagram, for example, Figure 1 The view arrow IV shows Figure 1 Embodiment of a locking device, wherein a rotary latch is additionally shown,

[0074] Figure 5 Similar to Figure 4 The illustration of an embodiment of the prior art shows an embodiment of a locking device with a non-displaceable locking catch, wherein a deformation (not shown) occurs due to a crash, which causes the rotary latch to approach a transverse leg of the locking catch and to contact it while preventing an opening movement,

[0075] Figure 6 Show Figure 4 an embodiment of a locking device according to the invention, which has a locking catch which is in a spaced-apart position in the event of a crash, wherein, in the event of a crash, the rotary latch displaces the locking catch into the spaced-apart position of the mounting plate by means of a force acting on the transverse leg of the locking catch, thereby making it possible to more easily open the locking device,

[0076] Figure 7 A further embodiment of a locking device according to the invention is shown in a partially cutaway schematic diagram, which has a mounting plate and a locking catch in a desired position, a support element and a funnel-shaped pressing body, which presses against the locking catch in the desired position. Figure 7 In the illustration of FIG. , it is arranged spaced apart from the lock,

[0077] Figure 8a Show Figure 7 an embodiment in which, for the purpose of performing a oscillating deformation movement, a funnel-shaped pressing body is guided onto the mounting plate,

[0078] Figure 8b Based on Figure 8a The diagram shows Figure 8a A locking device, wherein a pressure body is shown to illustrate the pivoting movement in a changed tilting position,

[0079] Fig. 9 A mounting plate, in which an axial section of the latch is arranged in an enlarged partially cutaway view, for example according to the partial circle IX in FIG. 8 , and a funnel-shaped pressing body are shown in a broken illustration for illustrating the deformation movement,

[0080] Figure 9a For example, along Fig. 9 The section line IXa-IXa in FIG. 1 is shown in a partially cutaway schematic cross-sectional view. Fig. 9 The locking device in

[0081] Fig.10 Similar to Fig. 9 The figure shows a further embodiment of a locking device according to the invention, in which a material region of the mounting plate already bears against the outer circumference of an axial section of the latch in the target position by deformation, wherein the latch has a conical inclination in the form of a radial step,

[0082] Fig.11 A separate diagram is shown according to Fig.10 An embodiment of the lock buckle of the locking device according to the present invention,

[0083] Fig.12 Show Fig.10 An embodiment in which the radial step is deformed into a protrusion in the form of a radial expansion, and

[0084] Fig.13 An exemplary embodiment of a fastening device according to the invention is shown in a schematic, partially cutaway illustration, which has a first body and a second body and a rivet. DETAILED DESCRIPTION

[0085] Embodiments of the invention are explained with the aid of the following description of the accompanying drawings:

[0086] In the following description of the drawings, embodiments of the invention are also exemplarily described with reference to the drawings. Here, for the sake of clarity (even if generally related to different embodiments), identical or similar parts or elements or regions are represented by the same reference numerals, partly with lower case letters added.

[0087] Features which have only been described in relation to one embodiment may also be provided in any other embodiment of the invention within the scope of the invention. Such modified embodiments (even though they are not shown in the drawings) are also included in the invention.

[0088] All disclosed features are themselves important to the invention. The disclosure of the present application also includes in full the corresponding priority document (copy of the prior application) as well as the cited publications and the disclosure of the described prior art devices, also for including single or multiple features of this document in one or more claims of the present application.

[0089] A first embodiment of the locking device according to the invention is Figures 1 to 3 1 and is denoted overall by reference numeral 10 .

[0090] The locking device 10 according to the invention comprises a locking catch 11. The locking catch can be made of round steel, for example. In the embodiment shown in the figures, the locking catch 11 comprises a first leg 12 and a second leg 13, which are connected to each other via a transverse leg 14. The first leg 12 passes through an opening 20 in the mounting plate, and the second leg 13 passes through an opening 19 in the mounting plate. Figure 1 and Figure 2 The latch 11 is shown in the desired position 17 .

[0091] In the event of a crash, forces acting in the axial direction 21 relative to the mounting plate 15 may be applied to the lock catch 11. If these forces exceed a threshold force, such as a force greater than 1 kN or greater than 2 kN, or such as a force greater than 3 kN, the lock catch 11 may move in the axial direction 21. Figure 3 The spacing position 18 reached in the event of a crash is shown.

[0092] During normal use of the vehicle, the lock catch 11 remains in its nominal position 17. In this case, for example, the mounting plate 15 can be fixed on the vehicle body side and the rotary latch 16 arranged on the door element can restrain the lock catch 11. The invention also includes a geometrically inverted arrangement in which the mounting plate 15 and the lock catch 11 are fixed on the door element and the rotary latch 16 is arranged on the vehicle body side.

[0093] Figure 4 and Figure 6 The previously described locking device 10 is further illustrated with an additional illustration of a rotary latch 16. The rotary latch 16 is Figures 4 to 6 1 and surrounds the leg 13 that engages or restrains the buckle 11. Figure 4 The normal position when the door is closed and locked is shown. This normal state of the latch is maintained during the service life of the vehicle when the door is closed and locked, as long as there is no collision.

[0094] In the event of a collision, such as a side impact or head-on collision, Figure 5 In the locking device 10a of the prior art with a non-displaceable locking catch 11a, it may happen that due to relative deformations of the door element and / or the vehicle body and / or the rotary latch in the event of a crash, the transverse leg 14a comes into contact with the rotary latch 16a. Figure 5 This situation is shown.

[0095] In such a contact situation, the rotary latch 16a cannot be displaced into its open position, for example due to deformations of the rotary latch 16a relative to the transverse leg 14a of the catch 11a, or due to deformations of other, not shown, elements of the locking device 10a, or due to deformations of vehicle components arranged adjacent to the locking device 10a, which are also not shown. Due to such mentioned deformations, the opening movement of the rotary latch cannot be carried out without problems, for example because during the opening movement a section of the rotary latch 16a abuts against a section of the catch 11a and thereby blocks the opening movement of the rotary latch 16a. The door cannot therefore also be opened.

[0096] In order to prevent such blocking, in the locking device 10 according to the invention, the lock catch 11 is movable and in the event of a collision (such as in Figure 6 As described in ), the spacing position 18 can be reached.

[0097] Now, about Figure 6 The diagram assumes that in the case of a collision the same Figure 5 In the device 10 according to the invention, the rotary latch 16 can apply a force directed in the direction of the arrow 21 to the transverse leg 14 of the lock catch 11 during a collision and drive the lock catch 11 in the direction of the arrow 21 until the lock catch reaches Figure 6 The spacing position 18 shown in FIG.

[0098] In this spaced position 18, despite deformations of the vehicle body and / or despite deformations of door elements not shown in the drawings, an unhindered opening movement of the rotary latch 16 relative to the displaced catch 11 is possible. The opening movement is particularly possible because during the displacement of the catch 11, the rotary latch 16 is not deformed relative to the catch 11 or is not deformed so much relative to the catch that no obstruction occurs in the opening movement of the rotary latch 16 performed after a crash.

[0099] In particular, after a crash, during the opening movement of the rotary latch 16, the transverse leg 14 of the latch 11 does not come into contact with the rotary latch 16. When the locking device is opened, the door can be released.

[0100] Now, according to Figures 7 to 9aThe principle according to the invention is explained with reference to an exemplary embodiment of a locking device 10 .

[0101] Figure 7 The latch 11 is shown, which is fixed in its desired position on the mounting plate 15. The leg 13 is passed through a first opening 19 in the mounting plate 15 and the second leg 12 is passed through a second opening 20.

[0102] The two openings 19 , 20 are dimensioned in such a way that the two legs 12 , 13 can be easily inserted.

[0103] Figure 7 The following position is shown, in which the stop element 22 rests with its stop surface 35b on the mounting plate 15. Figure 7 on the lower side.

[0104] This contact defines a desired position 17 of the latch 11 relative to the mounting plate 15 .

[0105] according to Figure 7 , the mounting plate 15 is placed on the support 44 and thus the force is about Figure 7 When applied to the mounting plate 15 from above, deflection is not possible.

[0106] Figure 7 A push body 28 or push element in the form of a funnel is shown at a distance from the closure device 10 . The funnel 28 is pushed over the leg 13 of the latch 11 in the direction of the arrow 45 until the funnel rests with its free edge 29 on the mounting plate 15 . Figure 8a , 8b and 9 show this position.

[0107] The pressure body 28 is acted upon by a drive device (not shown) in the direction of the arrow 45 , ie, in the direction of the mounting plate 15 .

[0108] Here, the pressing body 28 moves its free end 29 in a Fig. 9 This presses onto the upper side 46 of the mounting plate 15 in such a way that the material region 26 of the mounting plate 15 at the opening 33 of the first opening 19 flows radially inwards in the deformation direction of the arrow 27 .

[0109] The section of the latch 11 located in the first opening 19 is referred to as the axial section 24. The central longitudinal axis of the axial section 24 is denoted by reference numeral 47. The material region 26 of the mounting plate 15 moves towards the central longitudinal axis 47 of the axial section 24 during the deformation movement.

[0110] The deformation movement takes place in this case in such a way that a material region 26 of the mounting plate 15 contacts the outer circumferential surface 25 of the axial section 24 .

[0111] Figure 9aThe sectional view of φ shows the corresponding contact regions 30 of these material regions 26 .

[0112] The pressing body 28 is driven by a drive device (not shown) to perform a swinging motion. Figure 8a and 8b To explain.

[0113] The pressure body 28 has a central longitudinal axis 48 . Due to the pivoting movement, the central longitudinal axis 48 of the pressure body 28 rotates about the central longitudinal axis 47 of the axial section 24 .

[0114] Due to the continuously changing tilting or pivoting position of the pressure body 28 relative to the mounting plate 15 , pressure is exerted in the direction of the arrow 45 and simultaneously radially inward toward the center axis 48 of the axial section 24 , so that a radial deformation movement of the material region 26 is achieved.

[0115] Due to the pivoting movement of the pressure body 28, correspondingly different sections of the free edge 29 of the pressure body 28 come into contact with the upper side 46 of the mounting plate 15. These contact sections, or more precisely those regions of the free edge 29 of the pressure body 28 which effect the deformation movement of the material region 26, extend in a circular manner along the edge of the opening 19, i.e., in a circular manner around the central longitudinal axis 47 of the axial section 24.

[0116] This oscillating movement can be performed continuously. However, the invention also includes the possibility of performing a pulsed or impact-like pressing movement of the pressing body 28 onto the upper side of the mounting plate 15, for example in the manner of hammering.

[0117] Figure 9a It is shown that along the opening 33 of the opening 19 a plurality of circumferential regions 31 a , 31 b , 31 c , 31 d provide a contact surface 30 which contacts the outer circumferential surface 25 of the axial section 24 .

[0118] In particular, it is provided according to the invention that the opening 33 provides an annular region 32 which completely abuts, ie tightly surrounds, the outer circumferential surface 25 of the axial section 24 in a closed manner in the circumferential direction.

[0119] By means of this deformation movement of the material region 26 by the pivoting pressure body 28 , the threshold force required in the event of a crash in order to displace the latch 11 from the setpoint position 17 into the spacing position 18 can be set to a very precisely predetermined extent.

[0120] The adjustment stroke 34 may be 50 mm, for example.

[0121] like Figure 7 and Fig. 9As shown, the pressing body 28 is constructed approximately in a funnel shape and tapers downwardly in a conical shape. The lower opening end of the pressing body 28 has an inner diameter at its free edge region 29, which is larger than the outer diameter 39 of the axial section 24. For example, the inner diameter at the funnel opening of the pressing body 28 can be approximately 1 mm-4 mm larger than the outer diameter 39 of the axial section 24.

[0122] Advantageously, provision can be made for the inner free edge 29 of the pressure body 28 to be at a distance from the outer circumferential surface 25 of the axial section 24 of approximately between 0.5 mm and 2 mm.

[0123] Fig. 9 The illustrations in FIG. 1 are to be understood only schematically and in particular not to scale.

[0124] End stops 23a, 23b (23b) may be provided at the free ends of the legs 12, 13 of the lock or on the two legs of the lock 11. Figure 4 ), the end stop having a corresponding stop surface 35a, which limits the displacement movement of the lock catch 11 in the event of a collision.

[0125] The invention includes locking only one leg 12, 13 in the desired position for setting the threshold force by the aforementioned deformation movement of the material region 26 of the mounting plate 15. The invention also includes that both legs 12, 13 are fixed to the mounting plate 15 in this way.

[0126] exist Figures 10 to 12 In the embodiment, in addition to the aforementioned fixing of the lock buckle 11 on the mounting plate 15, the following is also provided due to the deformation of the material area 26 of the mounting plate 15: Fig.11 Another embodiment of the lock buckle 11 according to the present invention is shown in a schematic perspective view.

[0127] The axial section 24 and the stop projection 22 can be seen. A special feature of this exemplary embodiment is the radial step 38, which is conical in design.

[0128] Compared to the outer diameter 39 of the axial section 24 , the outer diameter 40 of the adjacent axial section 41 is smaller.

[0129] Fig.10 This offset of the outer diameter is shown in cross section. The step is linear here, so that a taper is achieved.

[0130] Fig.10 A further pressure body 42 is shown in the form of a hollow pressure piece of annular cylindrical design, the inner diameter of which is matched to the outer diameter 40 of the axial section 41 .

[0131] Due to the movement along arrow 49, the pressing body 42 is moved from Fig.10 The radial step 38 can be caulked starting from the position of Fig.12 The caulked radial step 43 is schematically shown.

[0132] The radial step 38 is caulked to form a radial expansion 36 .

[0133] exist Fig.10 In the embodiment of FIG. 3 , the radial expansion 36 is illustrated by means of a protrusion 37 .

[0134] In the event of a crash, the projection 37 additionally prevents the latch 11 from being displaced from the desired position 17 into the spaced position 18 and must also be deformed in the event of a crash.

[0135] By forming such a radial expansion 36 , the threshold force required for displacing the latch 11 from the setpoint position 17 into the spaced position 18 can be set even better and more precisely.

[0136] By carrying out two different deformations, wherein on the one hand a radially inwardly directed deformation of material region 26 of mounting plate 15 is carried out and on the other hand a radial expansion 36 of legs 12 , 13 of latch 11 is carried out independently of this, the threshold force can be set more precisely due to the division into two deformation regions.

[0137] Fig.13 An embodiment of a fastening device 50 according to the invention is shown.

[0138] In this case, a first body 51 , which is provided, for example, from a sheet metal, and a second body 52 , which is also provided, for example, from a sheet metal, are provided.

[0139] An opening 53 is arranged in the first body 51 and a second opening 54 is arranged in the second body 52. ​​The openings 53, 54 are arranged aligned with each other.

[0140] The two openings 53 , 54 are jointly penetrated by a rivet 55 .

[0141] The rivet 55 comprises an axial section 56 and a rivet head 57 . The rivet head 57 comprises retaining surfaces 58 a , 58 b , wherein these retaining surfaces 58 a , 58 b are configured as annular end surfaces and contact the first body 51 .

[0142] The rivet 55 has a second end 59 .

[0143] The second opening 54 is surrounded by a material region 60 of the second body 52 .

[0144] In the region of the opening 61 of the second opening 54 , the material region 60 of the second body 52 is likewise deformed radially inwardly toward the central longitudinal axis 47 of the rivet 55 , so that it bears there against the outer circumferential surface 62 of the axial section 56 .

[0145] In this way, the rivet 55 can again be fixed axially on the second body 52 .

[0146] The method for deforming the material region 60 of the second body 52 can be similar to the method for deforming the material region 26 of the mounting plate 15 in a manner similar to that of the second body 52. Figures 1 to 12 The method described in the embodiment is carried out. Figures 1 to 12 The deformation method described in the embodiment of the present invention and all other features disclosed there can be applied in the same way in accordance with Fig.13 In the embodiment of the fastening device. An annular extrusion or annular caulking can be achieved by the swinging pressing body 28.

[0147] In an embodiment of the fastening device 50 , the first body 51 and the second body 52 are fixed so as not to be movable relative to each other.

[0148] In an alternative design of the present invention, the first body 51 may be arranged to pivot relative to the second body 52 about the central longitudinal axis 47 of the rivet 55 .

Claims

1. A locking device (10) for a motor vehicle, comprising a locking catch (11), which is fixed in a nominal position (17) on a mounting plate (15) and can be transferred from the nominal position (17) to a spaced position (18) in the event of an accident due to exceeding a threshold force, characterized in that The mounting plate (15) comprises at least one opening (19, 20) through which an axial section (24) of the lock catch (11) passes, wherein a plurality of material regions (26) of the mounting plate (15) arranged at the through-mouths (33) of the openings (19, 20) are deformed so as to abut against the outer circumference (25) of the axial section (24) of the lock catch (11) in the rated position (17).

2. The locking device (10) according to claim 1, characterized in that The material area (26) of the mounting plate (15) arranged at the through-mouth portion (33) of the opening (19, 20) is deformed along multiple circumferential areas (31a, 31b, 31c, 31d) of the outer circumferential surface (25) of the axial section (24) to abut against the outer circumferential surface (25) of the axial section (24) of the lock (11) located in the rated position (17).

3. The locking device (2) according to claim 1 or 2, characterized in that: A material region (26) of the mounting plate (15) arranged at the opening (33) of the openings (19, 20) is deformed annularly at the outer circumference (25) of the axial section (24) so ​​as to abut against the outer circumference (25) of the axial section (24) of the latch (11) in the rated position (17).

4. The locking device (10) according to any one of claims 1 to 3, characterized in that The material region (26) is annularly caulked.

5. The locking device (10) according to claim 4, characterized in that The material region (26) is caulked in an annular manner in an oscillating manner.

6. The locking device (10) according to any one of the preceding claims, characterized in that A plurality of material regions (26) of the mounting plate (15) arranged at the two openings (33) of the openings (19, 20) are deformed to abut against the outer circumference (25) of the axial section (24) of the latch (11) in the rated position (17).

7. The locking device (10) according to any one of the preceding claims, characterized in that The mounting plate (15) has at least two openings (19, 20) for two different axial sections of the locking catch (11).

8. The locking device (10) according to claim 7, characterized in that A plurality of material regions (26) of the mounting plate (15) arranged at the through-opening (33) of the first opening (19) and a plurality of material regions (26) of the mounting plate (15) arranged at the through-opening (33) of the second opening (20) are deformed to abut against the outer circumferential surface (25) of the corresponding axial section (24) of the lock catch (11) located in the rated position (17).

9. The locking device (10) according to any one of claims 1 to 8, characterized in that The locking catch (11) is designed to extend lengthwise in an axial direction (21).

10. The locking device (10) according to any one of claims 1 to 8, characterized in that The locking catch (11) is designed to be U-shaped or approximately U-shaped.

11. The locking device (10) according to any one of the preceding claims, characterized in that The adjustment travel (34) of the lock catch (11) from the rated position (17) of the lock catch to the spacing position (18) of the lock catch is at least 20 mm, in particular at least 40 mm, and further in particular at least 50 mm.

12. The locking device (10) according to any one of the preceding claims, characterized in that A plurality of stop surfaces (35a, 35b) are arranged on the lock catch (11), which limit the axial displacement movement of the lock catch in one direction (21) or in two directions.

13. The locking device (10) according to any one of the preceding claims, characterized in that The locking catch (11) has a radial expansion (36) in an axial region directly adjacent to the axial section and directly adjacent to the material region (26).

14. The locking device (10) according to claim 13, characterized in that The radial expansion (36) of the locking catch (11) is convex in shape.

15. A method for producing a locking device (10) for a motor vehicle, in particular for producing a locking device (10) according to any one of claims 1 to 14, comprising the following steps: a) providing a lock (11), b) providing a mounting plate (15) having at least one opening (19, 20), c) arranging an axial section (24) of the locking catch (11) in the openings (19, 20), d) deforming a material region (26) of the mounting plate (15) at the opening (33) of the openings (19, 20) relative to the outer circumference (25) of the axial section (24) such that the material region (26) comes into contact with the outer circumference (25).

16. The method according to claim 15, characterized in that Step d) is carried out in such a way that an annular contact of the material region (26) on the outer circumferential surface (25) is achieved.

17. The method according to claim 15 or 16, characterized in that Step d) is performed by means of a pressure body (28), in particular a funnel-shaped pressure body, which performs an impact movement and / or a pivoting movement in order to achieve a radially inwardly directed material flow of the material region (26).

18. The method according to claims 15 to 17, characterized in that After step d), perform the following steps: e) deforming the locking catch (11) to achieve a radial expansion (36) at an axial region directly adjacent to the axial section (24) and directly adjacent to the material region (26).

19. The method according to claim 18, characterized in that To perform step e), a locking catch (11) is provided which comprises a radial step (38).

20. The method according to claim 19, characterized in that Step e) comprises the following steps: f) Caulking the radial steps (38).

21. A fastening device (50) for fixing a first body (51) relatively to a second body (52), wherein: The first body (51) comprises a first opening (53), and the second body (52) comprises a second opening (54), wherein the two openings (53, 54) are arranged in alignment with each other, wherein a rivet (55) passes through the two openings (53, 54), wherein the rivet (55) comprises an axial section (56) together with a rivet head (57) arranged at a first end of the axial section, the rivet head radially expanding relative to the axial section (56), and the rivet is connected to the first body (51) by contacting the rivet head. ) retaining surfaces (58a, 58b) lock the axial position of the rivet (55), and wherein the axial section (56) of the rivet (55) is contacted by a material area (60) of the second body (52) on the outer peripheral surface (62) of the axial section at the second end (59) of the axial section, and the material area surrounds the through-mouth portion of the second opening (54), wherein the material area (60) of the second body (52) is deformed to abut against the outer peripheral surface (62) of the axial section (56) of the rivet (55).

22. The fastening device (50) according to claim 21, characterized in that The first body (51) and / or the second body (52) are made of a plate material.

23. The fastening device (22) according to claim 21 or 22, characterized in that The two bodies (51, 52) are immovably fixed relative to each other.

24. The fastening device (22) according to claim 21 or 22, characterized in that The first body (51) is arranged to be pivotable relative to the second body (52).

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