Exterior door handle system in a motor vehicle

Abstract

An exterior door handle system (2) in a motor vehicle, comprising a bearing bracket (11) arranged on an inner side (10) of an outer door panel (1) and a door handle (12) arranged on an outer side (9) of the outer door panel (1), wherein the door handle (12) is mounted from the outer side (9) of the outer door panel (1) and penetrates the outer door panel (1) and is mounted in the bearing bracket (11), wherein a unit (19) formed from a locking cylinder (20) and a housing (21) for the locking cylinder (20) is mounted in the bearing bracket (11), which unit penetrates an opening (8) in the outer door panel (1) and is covered on the outer side (9) of the outer door panel (1) by means of a protective cap (24) which is mounted on the outer side (9) of the outer door panel (1), wherein a protective cap (24) arranged in the bearing bracket (11) is arranged on the inner side (10) of the outer door panel (1). mounted locking clamp (30) is arranged,which is plate-shaped and which locks the unit (19) of locking cylinder (20) and housing (21) against their respective mounting direction, , characterized in that the unit (19) formed from the locking cylinder (20) and the housing (21) for the locking cylinder (20) is mounted from the inside (10) of the outer door panel (1), the locking clamp (30) also locks the protective cap (24) against its respective mounting direction, the housing (21) of the unit (19) formed by the locking cylinder (20) and the housing (21) has at least one groove (45, 46) into which the locking clamp (30) engages, the protective cap (24) has at least one groove (48, 49) into which the locking clip (30) engages, the plate-shaped locking clamp (30) passes through the at least one groove (45, 46) of the housing (21) and / or the at least one groove (48, 49) of the protective cap (24) on the end face.

Description

The invention relates to an external door handle system in a motor vehicle according to the preamble of claim 1.US 2010 / 0 325 841 A1 discloses an exterior door handle system according to the preamble of claim 1.In this case, the protective cap is intended to ensure that third parties cannot easily manipulate the exterior door handle system in the region of the lock cylinder from the aspect of an intended theft of the motor vehicle.It is furthermore advantageous in the case of door outside handle systems if a secure fit of protective cap and unit of lock cylinder and housing in the door outside handle system is ensured. This also makes unauthorized manipulations difficult for the purpose of theft.FR 2 915 227 A1, DE 600 26 478 T2, DE 103 40 196 B4, DE 10 2006 020 044 A1, EP 1 255 007 B1 and EP 0 646 688 A1 disclose further prior art.It is the object of the present invention to further develop an external door handle system of the type mentioned at the beginning in such a way that in the latter the unit of locking cylinder and housing as well as the protective cap are mounted in a particularly theft-proof manner and, moreover, a particularly firm connection of these elements to the bearing bracket is ensured.The object is achieved by an exterior door handle system according to claim 1.The locking clip mounted on the inside of the outer door panel in the bearing bracket locks both the unit of the locking cylinder and housing and the protective cap against their respective mounting direction.The housing of the unit formed from the lock cylinder and the housing has at least one groove which receives the locking clip. In particular, the housing has a plurality of grooves for receiving the locking clip. With respect to the protective cap, it is provided that it has at least one groove into which the locking clip engages. It is entirely possible to provide a plurality of grooves in which the locking clip engages.The plate-shaped locking clip is configured such that, on the end face, in particular in the region of one of the plate sections, the at least one groove of the protective cap and / or the at least one groove of the housing passes through. It is particularly advantageous if the plate-shaped locking clamp engages from at least two sides, in particular three sides, in each case into the housing and / or the protective cap. This engagement of the locking clip in the housing and the protective cap in the region of a plurality of sides provides a particularly high level of security with respect to unauthorized manipulation on the unit or the protective cap, which aims to move the unit or the protective cap counter to the mounting direction of the respective element.The external door handle system has a special component in the manner of the locking clip, which is brought into a locking position with respect to said unit and the protective cap after the assembly of the unit of locking cylinder and housing and the protective cap. In this position, due to the positive connection produced between the bearing bracket, the locking clamp, the unit and the protective cap, it is not possible to move the unit and the protective cap counter to their respective mounting direction. These elements are thus locked by means of the locking clip.If third parties manipulate the protective cap, this cannot be pulled off or disassembled counter to the mounting direction of the protective cap due to the action of the locking clip on the protective cap. The same applies to the unit of lock cylinder and housing, in relation to their mounting direction, due to the action of the locking clip on this unit.The locking function of the locking clip can be realized with the simplest configuration of the locking clip. This is in particular plate-shaped.The plate shape is excellently suitable for effecting the locking by bringing the plate inserted into a recess of the bearing bracket, with defined end-face regions, into engagement behind with more complementary regions of the unit or protective cap.According to a preferred development, it is provided that the plate-shaped locking clip is formed by a first plate section and a second plate section arranged perpendicular to the latter. In particular, the one larger plate portion serves for locking with the unit and the protective cap, while the other plate portion receives, for example, a screw for connecting this plate portion to another component, for example the housing of the unit.According to a preferred development of the invention, it is provided that a screw serves for connecting the locking clamp and the housing. The screw passes through a hole in the locking bracket and is threaded into the housing. Thus, not only is the unit of housing and locking cylinder fixed in the mounting direction, but additionally locked by means of the locking bracket and moreover connected to the locking bracket by means of the screw. Thus, a particularly strong, theft-proof composite of locking bracket, protective cap and unit of housing and locking cylinder is formed.Preferably, the screw passes through a hole in the plate portion which does not lock to the housing and / or the protective cap. One plate section thus has the locking function, while the other plate section, in cooperation with the screw, has the connection function, specifically the connection function of the locking bracket and housing of the unit. In principle, it is conceivable to connect the locking bracket to another component of the exterior door handle system by means of the screw, for example to screw the screw to the bearing bracket. The aim is to ensure that the locking clip cannot be displaced from its locking position without any authority.Expediently, the screw is mounted in the hole of the locking clamp in an axially fixed manner by means of a securing ring connected to the screw. This makes it possible, when the screw is screwed out of the housing of the unit, to push the locking clip back into its non-locking position. This is advantageous during maintenance purposes in the region of the door, which may require the door to be disassembled in the region of the unit of housing and locking cylinder or protective cap.Further features of the invention are evident from the dependent claims, the attached drawing and the description of the preferred embodiment shown in the drawing, without being limited thereto. It shows: FIG. 1 shows an exterior door handle system in a motor vehicle, illustrated in an exploded illustration, as seen from the outside of an exterior door panel, FIG. 2 shows the door outer handle system according to FIG. 1 in an exploded illustration, viewed from the inside of the door outer panel, but without the illustrated door outer panel, FIG. 3 shows components of the door outer handle system, namely a locking clip, a unit formed by a locking cylinder and a housing, a protective cap and a screw with a securing ring, illustrated in an exploded illustration, FIG. 4 shows the arrangement according to FIG. 3 in the assembled state, FIG. 5 shows a section through the assembled door outer handle system, cut perpendicularly to the door outer panel, in the region of the components illustrated in FIGS. 3 and 4.The illustrated embodiment of the outside door handle system is used in a passenger car with the driver's door provided with an outside door handle, in which a keyless go system is integrated.FIG. 1 shows an outer door panel 1 of the driver's door, specifically only for that region of the outer door panel 1 in the region of which an outer door handle system 2 is arranged. There, the outer door panel 1 is provided with an inwardly curved depression 3 which has a central, large recessed grip region 4 and, with respect to the orientation of the motor vehicle, at the front a depressed region 5 with an opening 6 and at the rear a depressed region 7 with an opening 8. The outer side of the outer door panel 1 is denoted by the reference numeral 9, the inner side by the reference numeral 10 (FIG. 5 ).As can be seen from the illustration in FIGS. 1 and 2, a bearing bracket 11 is arranged on the inner side 10 of the outer door panel 1 and a door handle 12 is arranged on the outer side 9 of the outer door panel 1. By means of fastening means, not illustrated, the bearing bracket 11 is connected to the outer door panel 1 and / or an inner structure, not illustrated, of the door and is thus supported in this respect.The door handle 12 is mounted from the outer side 9 of the outer door panel 1 and passes through the opening 6 in the outer door panel 1 by means of a front bearing bracket 13 and through the opening 8 in the outer door panel 1 by means of a rear actuating attachment 14. By means of the bearing bracket 13, the door handle 12 is pivotably mounted in the bearing bracket 11 and the actuating attachment 14 passes through an opening 16 in the bearing bracket 11. In this case, the actuating pin 17 is connected in a latching manner to the deflecting lever 18. The reversing lever is connected to a Bowden cable, not illustrated in more detail, for actuating a door lock, not illustrated, of the driver's door. The deflecting lever 18 is mounted from the inner side 10 of the outer door panel 1.In the bearing bracket 11 there is also mounted a unit 19 which is formed by a locking cylinder 20 and a housing 21 for receiving the locking cylinder 20. This unit 19 is mounted from the inner side 10 of the outer door panel 1, and is thus located on the side of the bearing bracket 13 which faces away from the outer door panel 1. The housing 21 has an opening 22 in the bearing bracket, which is arranged adjacent to the opening 16. A transmission module 23 is plugged onto the mounted unit 19 from the side of the unit 19 facing away from the bearing bracket 13. By means of this transmission module 23, the closing function of the lock cylinder 20 is electrically transmitted to a central component of the motor vehicle.Externally, a protective cap 24 covers the unit 19. This protective cap 24 is mounted from the outer side 9 of the outer door panel 1. The protective cap 24 has a hole 25 for inserting a key through for inserting the key into the lock cylinder 20. An annular sealing element 26 is placed between the protective cap 24 and the outer door panel 1, wherein an opening 27 of the sealing element 26 passes through two projections 28, 29 of the protective cap 24 and, in addition to the protective cap 24, the actuating projection 14.To produce a theft-proof, firm connection of bearing bracket 11, unit 19 and protective cap 24, a locking bracket 30 made of sheet steel is provided which is mounted in the bearing bracket 13. This plate is designed in the form of a plate and has a first plate section 31 and a second plate section 32 arranged perpendicular thereto. Since the locking clip 30 is bent from a plate, its wall thickness is constant. The plate section 31 has punched-out regions, so that the plate section 31 is substantially U-shaped, having two leg regions 33, 34 and a web region 35 connecting these leg regions. The plate portion 32 is provided with a non-threaded hole 38 through which a screw 39 is inserted, which has an annular groove between the screw head 40 and the threaded portion 41 for receiving a securing ring 42. When the screw 39 is inserted, this is arranged on the side of the locking bracket 30 facing the plate section 31.The bearing bracket 11 is provided in the region of the openings 16 and 22 with a slot-shaped receptacle for inserting the locking clip 30 in the region of the plate section 31. A plate portion 43 of the support bracket 11, which serves as a stop surface for the plate portion 32 of the locking bracket 30, is provided with a hole 44 passing through the threaded portion 41 of the screw 39.The exterior door handle system 2 described thus far is assembled as follows:First, the bearing bracket 11 is connected to the outer door panel 1 and a base structure of the door. Consequently, the bearing bracket 11 abuts against the inner side 10 of the outer door panel 1. The locking clamp 30, which is pre-assembled with the screw 40 and the securing ring 42, is then inserted with its plate section 31 into the bearing bracket 11, but not yet so far that the plate section 32 contacts the plate section 43 of the bearing bracket 11. The unit 19 consisting of the locking cylinder 20 and the housing 21 is then inserted into the opening 22 of the bearing bracket 11 and the transmission module 23 is plugged onto the unit 19. Furthermore, the deflection levers 18 are mounted in the bearing bracket 11 from the inside. The further assembly then takes place from the outside by first placing the sealing element 26 on the outside of the outer door panel 1, and then placing the protective cap 24 on the outer door panel 1, specifically on the sealing element 26. The protective cap 24 with its projections 28 and 29 reaches the region of the locking bracket 30, the door handle 12 is then mounted, specifically the door handle 12 is mounted in the region of the front pivot bearing 13 which passes through the opening 6 in the outer door panel 1, in the bearing bracket 11 and the actuating attachment 14 is passed through the opening 27 in the sealing element 26 and the opening 16 in the bearing bracket 11, wherein the actuating pin 17 of the actuating attachment 14 is brought into a latching connection with the reversing lever 18. In the assembled position of the door handle 12, a rear end region of the grip section 15 covers the protective cap 24, wherein this covering is configured such that, when the protective cap 24 is covered, the locking cylinder 20 passing through the hole 25 of the protective cap 24 is accessible for inserting the key.The elements of the outer door handle system 2 assembled in this way, namely the unit 19 and the protective cap 24, can now be connected with respect to the bearing bracket 11 by displacing the locking bracket 30 and connecting the locking bracket 30 to the housing 21 of the unit to form a fixed, theft-protected unit.Details are illustrated in Figures 3 and 4:It can be seen from the figures that the locking clip 30 mounted on the inside of the door handle 12 in the bearing bracket 11 serves the purpose of locking both the unit 19 of the locking cylinder 20 and the housing 21 and the protective cap 24 counter to their respective mounting direction. Thus, the housing 21 of the unit 19 has two grooves 45 which can be brought into operative connection with the end sides of the web region 35 of the plate section 31 of the locking clip 30. Furthermore, the housing 21 has grooves 46, which can be brought into operative connection with end-face projections 47 of the leg regions 33, 34 of the locking chamber 30. Furthermore, the projection 28 has two grooves 48 extending parallel to the axial direction of the screw 39 for engagement with the projections 36, 37 of the locking bracket 30. Furthermore, the projection 29 of the protective cap 24 is provided with a groove 49, which can be brought into operative position with the end face of the web region 35 of the plate section 31 of the locking clip 30.When the unit 19 is mounted on the bearing bracket 11 and the protective cap 24 is inserted into the bearing bracket 11, the component formed from the locking bracket 30, the screw 39 and the securing ring 42 is transferred from its pre-mounting position into its end position. This causes the unit 19 and the protective cap 24 to be locked together with the bearing bracket 11.When the locking clamp 30 is moved into this end position, the screw 39 is screwed with its threaded section 41 into a threaded bore 50 of the housing 21 of the unit 19. This screwing-in process requires that the locking clamp 30 is moved in the direction of the housing 21 via the head 40 of the screw 39, whereby the locking clamp 30 in the region of its plate section 31 moves into the grooves 45 and 46 of the housing 21 and, with respect to the protective cap 24, the plate section 31 moves into the grooves 48 and 49. As a result, it is not possible to move the protective cap 24 and the unit 19 perpendicular to the plate plane of the plate section 31 of the locking clip 30, thus ensuring the locking of the unit 19 and the protective cap 24. This final assembly state of the elements according to FIG. 3 is illustrated in FIG. 4. FIG. 5 illustrates this final assembled state relative to the exterior door handle system 2 for the latching range discussed above.The arrangement of screw 39 and securing ring 42 makes it possible, when screw 39 is unscrewed from threaded bore 50 of housing 21, to transfer locking bracket 39 back into its pre-assembly position, thus to displace it accordingly, so that the locking between bearing bracket 11, protective cap 24 and unit 19 is canceled.List of reference characters1 Outer door panel 2 Outer door handle system 3 Depression 4 Recessed grip region 5 Depressed region 6 Opening 7 Depressed region 8 Opening 9 Outer side 10 Inner side 11 Bearing bracket 12 Door handle 13 Pivot bearing 14 Actuating attachment 15 Grip portion 16 Opening 17 Actuating pin 18 Reversing lever 19 Unit 20 Lock cylinder 21 Housing 22 Opening 23 Transmission module 24 Protective cap 25 Hole 26 Sealing element 27 Opening 28 Projection 29 Projection 30 Locking clip 31 Plate portion 32 Plate portion 33 Leg region 34 Leg region 35 Web region 36 Projection 37 Projection 38 Hole 39 Screw 40 Head 41 Threaded portion 42 Securing ring 43 Plate portion 44 Hole 45 Groove 46 Groove 47 Groove 48 Groove 49 Groove 50 Threaded bore

Claims

Exterior door handle system (2) in a motor vehicle, having a bearing bracket (11) arranged on an inner side (10) of an exterior door panel (1) and a door handle (12) arranged on an outer side (9) of the exterior door panel (1), wherein the door handle (12) is mounted by the outer side (9) of the exterior door panel (1) and passes through the exterior door panel (1) and is mounted in the bearing bracket (11), wherein a unit (19) formed from a lock cylinder (20) and a housing (21) for the lock cylinder (20) is mounted in the bearing bracket (11), said unit passing through an opening (8) in the exterior door panel (1) and being covered on the outer side (9) of the exterior door panel (1) by means of a protective cap (24) mounted by the outer side (9) of the exterior door panel (1), wherein a locking clip (30) supported in the bearing bracket (11) is arranged on the inner side (10) of the outer door panel (1), said locking clip being of plate-shaped design and locking the unit (19) of the locking cylinder (20) and the housing (21) counter to their respective mounting direction, characterized in that the unit (19) formed from the locking cylinder (20) and the housing (21) for the locking cylinder (20) is mounted from the inner side (10) of the outer door panel (1), the locking clip (30) also locks the protective cap (24) counter to their respective mounting direction, the housing (21) of the unit (19) formed from the locking cylinder (20) and the housing (21) has at least one groove (45, 46) in which the locking clip (30) engages, the protective cap (24) has at least one groove (48, 49) in which the locking clip (30) engages, the plate-shaped locking clip (30) passes through the at least one groove (45, 46) of the housing (21) and / or the at least one groove (48, 49) of the protective cap (24) on the end face.Exterior door handle system (2) according to claim 1, characterised in that the plate-shaped locking bracket (30) is formed by a first plate section (31) and a second plate section (32) arranged perpendicular thereto.Exterior door handle system (2) according to claim 1 or 2, characterised in that the housing (21) has a plurality of grooves (45, 46), in which the locking bracket (30) engages.Exterior door handle system (2) according to claim 1, 2 or 3, characterised in that the protective cap (24) has a plurality of grooves (48, 49), in which the locking bracket (30) engages.Exterior door handle system (2) according to one of claims 1 to 4, characterised in that the plate-shaped locking clip (30) passes through the at least one groove (45, 46) of the housing (21) and / or the at least one groove (48, 49) of the protective cap (24) in the region of a plate section (31) of the plate sections (31, 32).Exterior door handle system (2) according to one of claims 1 to 5, characterised in that the plate-shaped locking clamp (30) engages from at least two sides in each case into the housing (21) and / or the protective cap (24).Exterior door handle system (2) according to claim 6, characterised in that the plate-shaped locking clamp (30) engages from three sides in each case into the housing (21) and / or the protective cap (24).Exterior door handle system (2) according to one of claims 1 to 7, characterised in that a screw (39) is provided for connecting the locking bracket (30) and the housing (21), wherein the screw (39) passes through a hole (38) of the locking bracket (30) and is screwed into the housing (21).Exterior door handle system (2) according to claim 8, characterised in that the screw (39) passes through a hole (38) in that plate section (32) which is not locked to the housing (21) and / or the protective cap (24), and passes through a hole (44) in the bearing bracket (11).Exterior door handle system (2) according to claim 8 or 9, characterised in that the screw (39) is mounted in the hole (38) of the locking bracket (30) in an axially fixed manner by means of a securing ring (42) connected to the screw (39).Exterior door handle system (2) according to one of claims 1 to 10, characterised in that the locking bracket (30) consists of steel sheet.

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