Holding device for a motor vehicle sensor system and motor vehicle with holding device

Abstract

A holding device (100) for a motor vehicle sensor system comprising a frame (10) attachable to a structural element (210) of a motor vehicle (200) and a sensor holder (11) designed for holding sensors, wherein a first pivot bracket (13) is pivotably mounted about a first pivot axis (16) on a first side (12) of the frame (10), and wherein a second pivot bracket (15) is pivotably mounted about a second pivot axis (17) on a second side (14) of the frame (10) opposite the first side (12), wherein a first guide element (18) of the first pivot bracket (13) is received in at least a first guide receptacle (20) of the sensor holder (11), and wherein a second guide element (19) of the second pivot bracket (15) is received in at least a second guide receptacle (21) of the sensor holder (11), wherein a preloading mechanism (22) is provided, wherein the preloading mechanism (22) is designed is,to pre-tension the first pivot bracket (13) and the second pivot bracket (15) into a service position, wherein the pre-tension can be overcome by applying a predetermined force to the sensor holder (11) so that the sensor holder (11) can move along a direction of movement (23) in the direction of the frame (10), characterized in that a first distance (24) between the first pivot axis (16) and the second pivot axis (17) is smaller than a second distance (25) between the at least one first guide receptacle (20) and the at least one second guide receptacle (21).

Description

The present invention relates to a holding device for motor vehicle sensors comprising a frame attachable to a structural element of a motor vehicle and a sensor holder designed for holding sensors. Furthermore, the present invention relates to a motor vehicle with a holding device for motor vehicle sensors. In modern vehicles, the sensors of various driver assistance systems are usually located in the air vent below the vehicle's crossmember. Legislation requires that these sensors not be damaged by minor impacts, such as those that can occur in low-speed rear-end collisions, thus reliably preventing the failure of the driver assistance systems. Furthermore, any loss of function due to sensor misalignment must be avoided. To protect the sensors, they are usually mounted on a crossmember of the vehicle. The vehicle must then have a sufficiently large overhang to prevent damage to the sensors in the event of front-end deformation in an accident. Furthermore, it is known in the art to install the vehicle sensors in the shadow of the crossmember to protect them from damage. However, due to the conical radiation pattern of some sensors, this requires significantly larger cutouts in the ventilation grille to provide the sensors with an unobstructed view. Additionally, arranging the sensors within the ventilation grille restricts the airflow, which can negatively impact the cooling performance of the radiators. From DE 10 2019 134 861 B4, a sensor arrangement on a vehicle is known, comprising a connection arrangement which movably connects a holding device between an operating position and at least one protective position to at least one vehicle component, wherein the holding device accommodates a sensor, wherein a collision force caused by a collision opponent comprises a first force component acting in a first spatial direction, which moves the holding device proportionally in the direction of the corresponding first spatial direction into the at least one protective position, wherein a restoring force from at least one restoring arrangement moves the holding device from the at least one protective position into the operating position, and wherein the first spatial direction corresponds to a longitudinal direction of the vehicle, wherein the connection arrangement comprises at least one lever arrangement.which additionally translates at least one component of the collision force acting in a further spatial direction into a proportional movement of the holding device in the corresponding spatial direction, wherein the at least one lever arrangement moves the holding device into the at least one protective position in a resulting direction of action of the collision force. DE 10 2020 116 494 B3 discloses a motor vehicle with a bumper arrangement comprising a cross member and an outer skin component with an opening, as well as with a sensor device which is held by a retaining device, wherein a support device is arranged between the outer skin component and the cross member, which is arranged on the outer skin component and in an installed state has a first distance to the cross member and a second distance to the retaining device, wherein the second distance is greater than the first distance, so that in a predefined crash case the outer skin components are supported on the cross member, but not on the retaining device. The present invention is based on the objective of providing a holding device for motor vehicle sensors, by means of which damage to or misalignment of the sensors of the motor vehicle sensor system is avoided in the event of an accident at low speeds, and which at the same time enables the realization of shorter vehicle overhangs and larger ventilation cross-sections. To solve the problem underlying the invention, a holding device for motor vehicle sensors is proposed, comprising a frame attachable to a structural element of a motor vehicle and a sensor holder designed for holding sensors, wherein a first pivot bracket is pivotably mounted about a first pivot axis on a first side of the frame, and wherein a second pivot bracket is pivotably mounted about a second pivot axis on a second side of the frame opposite the first side, wherein a first guide element of the first pivot bracket is received in at least a first guide receptacle of the sensor holder, and wherein a second guide element of the second pivot bracket is received in at least a second guide receptacle of the sensor holder, wherein a preloading mechanism is provided, wherein the preloading mechanism is designedto pre-tension the first pivot bracket and the second pivot bracket into a service position, wherein the pre-tension can be overcome by applying a predetermined force to the sensor holder so that the sensor holder can plunge along a direction of movement towards the frame, and wherein it is further provided that a first distance between the first pivot axis and the second pivot axis is smaller than a second distance between the at least one first guide receptacle and the at least one second guide receptacle. Vehicle sensors can include sensors for driver assistance systems or other vehicle functions. The sensors can be mounted on or attached to the sensor holder of the mounting device. When used as intended, the mounting device is attached to a structural element of the vehicle. This structural element can be a crossmember or a lower load-bearing platform. The mounting device can be attached to both the crossmember and the lower load-bearing platform, or it can be attached only to the crossmember or only to the lower load-bearing platform. Furthermore, the mounting device can be attached to the front or rear of the vehicle. Lateral or offset mounting of the mounting device on the vehicle is also possible, allowing the mounting device or sensor holder to accommodate corner sensors. For the sake of simplicity, and without limiting generality, the following uses or installation situations of the invention will be understood to mean attachment to the front of a motor vehicle. It is understood that the invention also encompasses uses or installation situations at the rear or at the corners of the vehicle. Terms such as "top," "bottom," "right," "left," "front," "rear," and related terms refer to the intended installation situation of the mounting device in a motor vehicle, that is, when the mounting device is attached to a structural element of the motor vehicle at the front of the vehicle via the frame. These terms are to be understood accordingly for other conceivable installation positions. The frame, which can be attached to the structural element of the motor vehicle, has a first side and a second side. In the intended installation position of the mounting device, viewed from the vehicle's forward direction, the first side corresponds to the right side, so that the second side corresponds to the left side. A pivot bracket is mounted on both the first and second sides of the frame, allowing it to pivot about a respective pivot axis. The pivot brackets are preferably designed to pivot individually or together relative to the frame. The sensor holder is attached to the frame via the first and second swivel brackets. For this purpose, the first swivel bracket has a first guide element which is received in at least one first guide recess of the sensor holder, and the second swivel bracket has a second guide element which is received in at least one second guide recess of the sensor holder. The frame can define a frame plane. In the operating position, the sensor holder is then pushed out of the frame plane defined by the frame by the swivel brackets pre-tensioned by the pre-tensioning mechanism, meaning that a sensor holder plane defined by the sensor holder lies parallel to and spaced apart from the frame plane. In the intended installation position of the mounting device on the motor vehicle, the sensor holder is located in its operating position, preferably in front of the frame or in front of the frame plane, when viewed from the vehicle's forward direction of travel. When a predetermined force is applied, which can occur, for example, in a low-speed impact such as a minor parking collision, the preload applied by the tensioning mechanism to the first and second pivot brackets can be overcome. The first and second pivot brackets pivot individually or together, and the sensor holder mounted on them moves along the direction of movement towards the frame, preferably into the frame plane, or moves outwards.The direction of movement therefore essentially corresponds to the direction opposite to the vehicle's direction of travel and preferably runs approximately perpendicular to the frame plane spanned by the frame. This movement of the sensor holder protects the sensors mounted on it from damage. Furthermore, it prevents the sensors from shifting, particularly with regard to their orientation. This allows for greater design freedom for the vehicle, and in particular, shorter vehicle overhangs can be achieved, as large overhangs are no longer necessary to protect the sensors and absorb impact deformation. Preferably, it can be provided that, after the predetermined force is removed, the pre-tensioning mechanism pre-tensions the first swivel bracket and the second swivel bracket back into the operating position, so that the sensor holder is moved back against the direction of movement, preferably out of the frame plane of the frame. The first pivot axis and the second pivot axis are located at a first distance from each other. Likewise, the at least one first guide receptacle and the at least one second guide receptacle of the sensor holder are arranged at a second distance from each other. In the intended installation situation, the first distance and the second distance are preferably measured transversely to the direction of movement. According to the invention, the first distance between the first pivot axis and the second pivot axis is smaller than the second distance between the at least one first guide receptacle and the at least one second guide receptacle. This can mean that the first pivot bracket and the second pivot bracket essentially pivot apart when the sensor holder plunges towards the frame due to the application of the predetermined force along the direction of movement. Preferably, the first pivot axis and the second pivot axis, and more preferably the first pivot bracket and the second pivot bracket, are arranged behind the sensor holder in the direction of movement. In other words, the first and second pivot axes, preferably the first and second pivot brackets, are not located laterally to the sensor holder. This reduces the lateral dimensions of the mounting device. If the holding device is arranged in the area of ​​a ventilation grille of a vehicle radiator, a larger ventilation cross-section remains. Preferably, the first pivot axis and the second pivot axis are parallel to each other. It is further preferably provided that the preloading mechanism comprises at least one, preferably two, spring elements assigned to the first pivot bracket and at least one, preferably two, spring elements assigned to the second pivot bracket. Each of the swivel brackets is thus preferably pre-tensioned by at least one associated spring element. The pre-tensioning of the first and second swivel brackets forces the sensor holder into the operating position, preferably out of the frame plane. With a further advantage, it can be provided that the at least one spring element assigned to the first swivel bracket and the at least one spring element assigned to the second swivel bracket are leg springs. It is advantageous to provide that the frame has a first, in particular upper, transverse element and a second, in particular lower, transverse element, wherein preferably the first transverse element and the second transverse element are connected to each other by means of, preferably exactly, a longitudinal element, wherein the longitudinal element is further preferably connected centrally to the first transverse element and the second transverse element. In its intended installation position, the frame thus has approximately the shape of an "H" rotated by 90°. The longitudinal element is oriented approximately vertically in this position and connected centrally to the first and second transverse elements. This reduces the amount of material required for the frame while simultaneously ensuring sufficient rigidity. It is advantageous to provide that the first transverse element and the second transverse element of the frame each have on the first side a bearing element associated with the first pivot bracket, in particular a bearing pin, preferably with a connecting pin receptacle, and each have on the second side a bearing element associated with the second pivot bracket, in particular a bearing pin, preferably with a connecting pin receptacle. The first and second cross elements preferably extend from the first side of the frame to the second side. A bearing element associated with the first pivot bracket is provided on the first side of both the first and second cross elements. Similarly, a bearing element associated with the second pivot bracket is provided on the second side of both the first and second cross elements. In the intended installation position on the structural element of the motor vehicle, the first and second pivot brackets are thus supported vertically between the upper and second cross elements and can be pivoted about the bearing elements associated with the first and second pivot brackets, respectively. The bearing elements, preferably designed as bearing journals, can also have a connecting journal receptacle. Depending on the type of attachment of the first pivot bracket and the second pivot bracket to the respective bearing elements, in particular to the bearing journals, the first pivot brackets and the second pivot brackets can either encompass or grip or enclose the bearing elements, or be mounted on the bearing elements, or, if a connecting journal receptacle is provided, be inserted into the connecting journal receptacle. If the first swivel bracket and the second swivel bracket have connecting pins which are inserted into the connecting pin receptacles of the bearing elements, additional screws or rivets may be provided to prevent the connecting pins from sliding out of the connecting pin receptacles. Furthermore, the mounting of the swivel brackets can include rolling or sliding bearings. The rolling or sliding bearings can be provided on the bearing elements, in particular on the bearing journals. It can be provided that the first pivot bracket and the second pivot bracket each have at least one cantilever, preferably two cantilevers, wherein the at least one cantilever, preferably the two cantilevers, each comprise a bearing complement, preferably an opening or a connecting pin, at a first end, wherein the first guide element and the second guide element are more preferably arranged at a second end of the cantilever, preferably of the two cantilevers, of the respective pivot bracket opposite the bearing complement. The boom(s) are preferably aligned perpendicular to the first pivot axis and the second pivot axis. When the pivoting brackets are pivoted, the booms thus pivot about the pivot axis. A bearing assembly is provided at the first end of each boom. The bearing assembly can be designed as an opening that is placed onto the bearing element of the respective transverse element, which is preferably designed as a bearing journal. The bearing element, in particular the bearing journal, is then arranged within the opening of the respective boom. Optionally, a sliding or rolling bearing can be provided. Alternatively or additionally, the boom can also have a connecting journal that is inserted into the connecting journal receptacle of the bearing element, in particular the respective bearing journal. The guide elements are arranged at the second end of each boom, opposite the first end. The first and second guide elements are in turn received in at least one first guide receptacle and at least one second guide receptacle of the sensor holder, respectively. It is particularly preferred that the first swivel bracket and the second swivel bracket each have two arms, wherein the two arms of the respective swivel bracket are connected to each other by means of a connecting plate. In the intended installation position of the mounting device on the structural element of the motor vehicle, the first arm of each swivel bracket is positioned at the top, and the second arm of each swivel bracket is positioned at the bottom. To stabilize the swivel brackets, the two arms of each swivel bracket are connected to each other by means of a connecting plate. Preferably, the spring elements assigned to the first swivel bracket and the second swivel bracket are arranged on the bearing elements assigned to the first swivel bracket and the second swivel bracket. If the spring elements are designed as torsion springs, they can in particular enclose the bearing elements, which are preferably designed as bearing journals. Preferably, abutments for the spring elements are provided on the first swivel bracket and on the second swivel bracket, in particular on the outrigger(s) of the first swivel bracket and the second swivel bracket. The preload force applied by the spring elements can be transferred to the pivot brackets via the abutments for the spring elements, so that these are preloaded into the operating position. Furthermore, it may preferably be provided that abutment stops for the abutments of the swivel brackets are provided on the frame, preferably on the first and second transverse elements. The first and second swivel brackets are pre-tensioned and pivoted into their operating position by spring elements, which preferably bear against the bracket abutments. The pivoting of the first and second swivel brackets is limited by stop blocks for the bracket abutments on the frame. In other words, the spring elements pre-tension the first and second swivel brackets into their operating position until the bracket abutments contact the stop blocks on the frame. This contact between the bracket abutments and the frame stop blocks prevents unwanted rotation of the sensor holder around a vertical axis in the intended installation, which could otherwise occur if the spring elements had unequal spring tension.Furthermore, the spring tension forces can be chosen to be so large that vibrations, shocks or acceleration occurring during the operation of the motor vehicle do not result in a shifting or pivoting of the sensor holder. It is therefore preferred that by placing the abutments of the swivel brackets against the abutment stops, rotation of the sensor holder about a vertical axis due to forces which are less than the predetermined force is prevented. It is advantageous to provide spring abutments for the spring elements on the frame, preferably on the first and second transverse elements. The spring elements, particularly the torsion springs, which are preferably arranged on the bearing elements of the first and second transverse elements, are then supported on the spring abutments of the first and second transverse elements. Furthermore, the spring elements are supported on the abutments of the first and second pivot brackets. The spring elements, particularly the torsion springs, are thus arranged to exert force between the spring abutments of the frame and the abutments of the pivot brackets in order to pre-tension the pivot brackets into their operating position. The pivoting of the pivot brackets is preferably limited by the abutments being stopped against the abutment stops of the frame. Furthermore, it can be provided that the first guide element and the second guide element each comprise a guide rod, or that the first guide element and the second guide element each comprise at least one pin, preferably two pins. If the guide elements are designed as guide rods, the respective guide rod can run parallel to the pivot axis of the respective swivel bracket and extend between the second ends of the arms of the respective swivel bracket. Furthermore, the guide rods can extend through the guide receptacles of the sensor holder. Preferably, the sensor holder provides two first guide receptacles for receiving the guide rod of the first swivel bracket and two second guide receptacles for receiving the guide rod of the second swivel bracket. Alternatively, the guide elements can each comprise a pin, preferably at least two pins. These pins are also arranged at the second ends of the arms opposite the bearing complement and are received in the guide receptacles of the sensor holder. The first pivot bracket and the second pivot bracket can each have two guide elements designed as pins, one of which is arranged at the second end of the first arm opposite the bearing complement and one at the second end of the second arm opposite the bearing complement. Each of the pins is in turn arranged in one of the two first guide receptacles or in one of the two second guide receptacles of the sensor holder. In this variant, individual bearing of the sensor holder on the arms of the first pivot bracket and the second pivot bracket is provided. Preferably, the at least one first guide receptacle and the at least one second guide receptacle are designed as elongated holes, wherein the first guide element and the second guide element can slide when the sensor holder is immersed in the at least one first guide receptacle and the at least one second guide receptacle. If a low-speed impact exerts a force on the sensor holder, this force is transmitted via the guide elements to which the sensor holder is attached to the pivot brackets. If the force exceeds the predetermined threshold, the pivot brackets pivot apart from their operating position, and the sensor holder dips into the plane of the frame in the direction of movement. This increases the distance between the guide elements of the first pivot bracket and the guide elements of the second pivot bracket. To accommodate this increase in distance, the guide receptacles are preferably designed as elongated slots. Preferably, linear bearings can also be provided for the mounting of the guide elements in the guide receptacles in order to reduce friction. Another solution to the problem underlying the invention is provided by a motor vehicle with a holding device as described above. Preferably, the holding device of the motor vehicle may be attached to a cross member and / or to a lower load plane of the motor vehicle. The invention is explained below with reference to the accompanying figures. These show: Fig. 1 an exploded view of a holding device, Fig. 2 a perspective front view of the holding device in a working position, Fig. 3 a perspective rear view of the holding device in the working position, Fig. 4 a side view of the holding device in the working position, Fig. 5 a top view of the holding device in the working position, Fig. 6 a perspective front view of the holding device with a submerged sensor holder, Fig. 7 a perspective rear view of the holding device with a submerged sensor holder, Fig. 8 a side view of the holding device with a submerged sensor holder, Fig. 9 a top view of the holding device with a submerged sensor holder, Fig. 10 a detail view of a pre-tensioning mechanism in the working position, Fig. 11 a detail view of the pre-tensioning mechanism with the sensor holder submerged, Fig.Fig. 12 shows a top view of the holding device with a sensor holder immersed on one side, Fig. 13 shows a perspective rear view of another holding device in the operating position, and Fig. 14 shows a detail view of a bearing element. Fig. 1 shows an exploded view of a holding device 100 for a vehicle sensor. In Figs. 2, 3, 4 to 5, the holding device 100 is shown in various views in a service position. Figs. 6, 7, 8 to 9 show the holding device 100 under the influence of a predetermined force. The holding device 100 comprises a frame 10, which can be attached to a structural element 210 of a motor vehicle 200 (only partially shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 to Fig. 9), and a sensor holder 11 designed for holding sensors. The structural element 210 can include a cross member 211 and a lower load-bearing level 212. The frame 10 has a first pivot bracket 13 on a first side 12 and a second pivot bracket 15 on a second side 14. The first pivot bracket 13 is pivotably mounted on the frame 10 about a first pivot axis 16, and the second pivot bracket 15 is pivotally mounted on the frame 10 about a second pivot axis 17. The first pivot bracket 13 has a first guide element 18. The second swivel bracket 15 has a second guide element 19.The first guide element 18 is received in first guide receptacles 20 of the sensor holder 11, and the second guide element 19 is received in second guide receptacles 21 of the sensor holder 11. Furthermore, a preloading mechanism 22 is provided, which is designed to preload the first pivot bracket 13 and the second pivot bracket 15 into a service position. By applying a predetermined force to the sensor holder 11, the preload of the preloading mechanism 22 can be overcome, allowing the sensor holder 11 to move along a direction of movement 23 towards the frame 10. The first pivot axis 16 and the second pivot axis 17 are arranged at a first distance 24. The first guide receptacles 20 and the second guide receptacles 21 are arranged at a second distance 25 from each other. The first distance 24 is smaller than the second distance 25. The frame 10 has a first, upper transverse element 26 and a second, lower transverse element 27, which are connected to each other via a longitudinal element 28. Bearing elements 29 in the form of bearing pins 30 for the first pivot bracket 13 are provided on the first side 12 of both the first transverse element 26 and the second transverse element 27. Bearing elements 29, also designed as bearing pins 30, for the second pivot bracket 15 are provided on the second side 14 of both the first transverse element 26 and the second transverse element 27. The pivot brackets 13, 15 each comprise two arms 31. The two arms 31 of each pivot bracket 13, 15 are connected to each other via a connecting plate 32. Each arm 31 has a bearing complement 34 in the form of an opening 35 at a first end 33. The pivot brackets 13, 15 are mounted on the frame 10 by placing the openings 35 onto the bearing pins 30. Detailed views of the preloading mechanism 22 are shown in Figures 10 and 11. The preloading mechanism 22 comprises spring elements 36 in the form of torsion springs 37, which are also mounted on the bearing journal 30. The torsion springs 37 are supported on spring abutments 38 of the frame 10. Furthermore, the torsion springs 37 bear against abutments 39 of the pivot brackets 13, 15, thereby preloading the pivot brackets 13, 15 into the operating position shown in Figures 2, 3, 4 to 5. Additionally, abutment stops 40 for the abutments 39 of the pivot brackets 13, 15 are provided on the frame 10, which limit the pivoting of the pivot brackets 13, 15.In the operating position, the spring elements 36 pre-tension the first swivel bracket 13 and the second swivel bracket 15 in such a way that the abutments 39 of the swivel brackets 13, 15 strike the abutment stops 40 of the frame 10 and thus fix the sensor holder 11 in the operating position and prevent it from twisting unintentionally. Guide elements 18, 19 are arranged at the second ends 41 of the arms 31 of the swivel brackets 13, 15. In the holding device 100 of Figs. 1, 2, 3, 4, 5, 6, 7, 8 to 9, the guide elements 18, 19 are designed as guide rods 42. The guide rod 42 of the first swivel bracket 13 is received in the first guide receptacles 20 of the sensor holder 11. The guide rod 42 of the second swivel bracket 15 is received in the second guide receptacles 21 of the sensor holder 11. The guide receptacles 20, 21 are each designed as elongated slots 43, so that the guide rods 42 can slide within the elongated slots 43. When a predetermined force is applied to the sensor holder 11, the sensor holder 11 moves in the direction of movement 23 towards the frame 10. During this movement, the first pivot bracket 13 and the second pivot bracket 15 swing apart.To prevent blockages, the guide rods 42 can slide outwards in the elongated holes 43. Figures 2, 3, 4 to 5 show the holding device 100 in its operating position, in which the sensor holder 11 is arranged in front of the frame 10. When a predetermined force acts on the sensor holder 11, it dips in the direction of movement 13 towards the frame 10. The holding device with the sensor holder dipped is shown in Figures 6, 7, 8 to 9. When the predetermined force is removed, the sensor holder 11 is biased back into its operating position. The first swivel bracket 13 and the second swivel bracket 15 can also be swivelled independently of each other. This is shown in Figs. 12 and 13. Fig. 13 shows a further embodiment of the holding device 100. The holding device 100 according to Fig. 13 is largely identical to the holding device 100 according to Figs. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 to 12, with the difference that the guide elements 18, 19 are not designed as guide rods 42, but each comprise two pins 44, which are each individually slidably received in the guide receptacles 20, 21 of the sensor holder 11, which are designed as elongated holes 43. In the detailed view of Fig. 14, a further variant of the bearing element 29 and the bearing complement 34 is shown. The bearing element 29 is designed as a bearing journal 30 with a connecting journal receptacle 45. The bearing complement 34 of the cantilever 31 is designed as a connecting journal 46, which engages in the connecting journal receptacle 45 of the bearing journal 30. A screw or a rivet 47 is provided to secure the connecting journal 46 in the connecting journal receptacle 45. Reference symbol list 100 Holding device 10 Frame 11 Sensor holder 12 First side 13 First swivel bracket 14 Second side 15 Second swivel bracket 16 First swivel axis 17 Second swivel axis 18 First guide element 19 Second guide element 20 First guide receptacle 21 Second guide receptacle 22 Preload mechanism 23 Direction of movement 24 First gap 25 Second gap 26 First transverse element 27 Second transverse element 28 Longitudinal element 29 Bearing element 30 Bearing pin 31 Cantilever 32 Connecting plate 33 First end 34 Bearing complement 35 Opening 36 Spring element 37 Torsion spring 38 Spring abutment 39 Abutment 40 Abutment stop 41 Second end 42 Guide rod 43 Slotted hole 44 Pin 45 Connecting pin receptacle 46 Connecting pin 47 Rivet 200 Motor vehicle 210 Structural element 211 Cross member 212 Lower load level

Claims

A holding device (100) for a motor vehicle sensor system comprising a frame (10) attachable to a structural element (210) of a motor vehicle (200) and a sensor holder (11) designed for holding sensors, wherein a first pivot bracket (13) is pivotably mounted about a first pivot axis (16) on a first side (12) of the frame (10), and wherein a second pivot bracket (15) is pivotably mounted about a second pivot axis (17) on a second side (14) of the frame (10) opposite the first side (12), wherein a first guide element (18) of the first pivot bracket (13) is received in at least a first guide receptacle (20) of the sensor holder (11), and wherein a second guide element (19) of the second pivot bracket (15) is received in at least a second guide receptacle (21) of the sensor holder (11), wherein a preloading mechanism (22) is provided, wherein the preloading mechanism (22) is designed is,to pre-tension the first pivot bracket (13) and the second pivot bracket (15) into a service position, wherein the pre-tension can be overcome by applying a predetermined force to the sensor holder (11) so that the sensor holder (11) can move along a direction of movement (23) in the direction of the frame (10), characterized in that a first distance (24) between the first pivot axis (16) and the second pivot axis (17) is smaller than a second distance (25) between the at least one first guide receptacle (20) and the at least one second guide receptacle (21). Holding device (100) according to claim 1, characterized in that the preloading mechanism (22) comprises at least one, preferably two, spring elements (36) associated with the first pivot bracket (13) and at least one, preferably two, spring elements (36) associated with the second pivot bracket (15), wherein it is further preferably provided that the at least one spring element (36) associated with the first pivot bracket (13) and the at least one spring element (36) associated with the second pivot bracket (15) are torsion springs (37). Holding device (100) according to claim 1 or 2, characterized in that the frame (10) has a first, in particular upper, transverse element (26) and a second, in particular lower, transverse element (27), wherein preferably the first transverse element (26) and the second transverse element (27) are connected to each other by means of, preferably exactly, a longitudinal element (28), wherein further preferably the longitudinal element (28) is connected centrally to the first transverse element (26) and the second transverse element (27). Holding device (100) according to claim 3, characterized in that the first transverse element (26) and the second transverse element (27) of the frame (10) each have on the first side (12) a bearing element (29) associated with the first pivot bracket (13), in particular a bearing pin (30), preferably with a connecting pin receptacle (45), and each have on the second side (14) a bearing element (29) associated with the second pivot bracket (15), in particular a bearing pin (30), preferably with a connecting pin receptacle (45). Holding device (100) according to one of the preceding claims, characterized in that the first pivot bracket (13) and the second pivot bracket (15) each have at least one extension (31), preferably two extensions (31), wherein the at least one extension (31), preferably the two extensions (31), each comprise a bearing complement (34), preferably an opening (35) or a connecting pin (46), at a first end (33), wherein the first guide element (18) and the second guide element (19) are more preferably arranged at a second end (41) of the extension (31), preferably of the two extensions (31), of the respective pivot bracket (13, 15) opposite the bearing complement (34), wherein the first pivot bracket (13) and the second pivot bracket (15) each have two extensions (31), wherein the two extensions (31) of the respective pivot bracket (13, 15) are connected to each other by means of a connecting plate (32). Holding device (100) according to claim 4 or 5, characterized in that the spring elements (36) assigned to the first pivot bracket (13) and the second pivot bracket (15) are each arranged on the bearing elements (29) assigned to the first pivot bracket (13) and the second pivot bracket (15). Holding device (100) according to one of claims 2 to 6, characterized in that abutments (39) for the spring elements (36) are provided on the first pivot bracket (13) and on the second pivot bracket (15), in particular on the extension(s) (31) of the first pivot bracket (13) and the second pivot bracket (15), wherein abutment stops (40) for the abutments (39) of the pivot brackets (13, 15) are preferably provided on the frame (10), further preferably on the first and on the second transverse element (26, 27), wherein, even more preferably, by the abutments (39) of the pivot brackets (13, 15) bearing against the abutment stops (40), a rotation of the sensor holder (11) about a vertical axis is prevented by forces which are less than the predetermined force. Holding device (100) according to one of claims 2 to 7, characterized in that spring abutments (38) for the spring elements (36) are provided on the frame (10), preferably on the first and second transverse element (27). Holding device (100) according to one of the preceding claims, characterized in that the first guide element (18) and the second guide element (19) each comprise a guide rod (42), or that the first guide element (18) and the second guide element (19) each comprise at least one pin (44), preferably two pins (44), and / or that the at least one first guide receptacle (20) and the at least one second guide receptacle (21) are designed as elongated holes (43), wherein the first guide element (18) and the second guide element (19) can slide when the sensor holder (11) is immersed in the at least one first guide receptacle (20) and the at least one second guide receptacle (21). Motor vehicle (200) with a holding device (100) according to one of the aforementioned claims.

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