Fastening part and arrangement with such a fastening part

Abstract

Fastening part (9) for a motor vehicle (1), with - a plurality of unlocking devices (13), wherein - the unlocking devices (13) are arranged to effect a time-coordinated displacement of a plurality of fastening elements (7) of a component (5) connected with the fastening part (9) from a fixed position (23.1) to a loose position (23.2) such that - the fasteners (7) in the loose position (23.2) release the connection between the component (5) and the fastening part (9), and wherein - a release device (13) of the plurality of release devices (13) has a transport channel (15), wherein - the transport channel (15) has an opening (19) on a first side (17.1), wherein - the transport channel (15) is designed to be arranged on a second side (17.2) different from the first side (17.1) on a fastening element (7) of the plurality of fastening elements (7) of a component (5) attached to a motor vehicle (1), wherein - the transport channel (15) is set up to transport a printing medium from the first side (17.1) to the second side (17.2), so that - by applying the pressure medium to the first side (17.1) a connection between the fastening element (7) of the plurality of fastening elements (7) and the fastening part (9) can be released by - the fastening element (7) of the plurality of fastening elements (7) is forced from the fixed position (23.1) into the loose position (23.2), wherein a release device (13) of the plurality of release devices (13) also has a hollow body (21), wherein - the one transport channel (15) on the second side (17.2) opens into the one hollow body (21) and is fluidically connected to it, wherein - the hollow body (21) fluidically connected to the transport channel (15) increases in volume when the first side (17.1) of the transport channel (15) is pressurized with the pressure medium, so that - by increasing the volume, a connection between the fastening element (7) and the fastening part (9) is released, by - the fastening element (7) is forced from the fixed position (23.1) into the loose position (23.2), whereby - the hollow body (21) as a hollow sphere, or - is designed as a hose.

Description

[0001] The invention relates to a fastening part for a motor vehicle with a plurality of release devices.

[0002] Due to the natural limitations of raw material availability and rising costs, motor vehicles, and especially their plastic components, should be recycled to reuse the raw materials used in their construction. Furthermore, with the growing focus on sustainability in society, motor vehicles should not only be as sustainable as possible during operation but also be recycled sustainably.

[0003] Components mounted on the motor vehicle, in particular exterior trim parts and interior trim parts, are usually attached to a mounting part of the motor vehicle by means of a plurality of fastening elements, usually snap elements.

[0004] Disassembling the components from the motor vehicle, especially loosening the majority of fasteners from the mounting part, is very labor- and energy-intensive, which is why disassembly is usually not carried out.

[0005] From patent application DE 101 02 213 A1, removable outer skin panels are known that are, for example, attached to bolts of a vehicle body. These outer skin panels must also be screwed in place at least at one point. The quick-release fastening arrangement is intended to enable the simple and rapid replacement of an outer skin component of a vehicle body on another vehicle body. For this purpose, an outer skin component of a vehicle body is attached to a vehicle body with a fastening element that can be pneumatically, hydraulically, or electrically actuated. The fastening arrangement according to the invention makes it easy to mount an outer skin component of a vehicle body on an otherwise fully assembled vehicle. This prevents the outer skin component of the vehicle body from being accidentally damaged during the actual vehicle assembly process.When designing the shape and size of the outer skin component of the vehicle body, it is no longer necessary to consider the installation situation and assembly processes of other vehicle components. This allows for a more advantageous body design and can contribute to weight reduction.

[0006] The invention is therefore based on the objective of creating a fastening element for dismantling a component connected to a fastening element of a motor vehicle by a plurality of fastening elements from the motor vehicle and an arrangement with such a fastening element, wherein the aforementioned disadvantages are reduced, preferably do not occur.

[0007] The problem is solved by providing the present technical teaching, in particular the teaching of the independent claim as well as the preferred embodiments disclosed in dependent claim 2 and subordinate claim 3 for arrangement and description.

[0008] The problem is solved, in particular, by creating a fastening element for a motor vehicle with a plurality of release devices. The release devices are designed to effect a time-coordinated displacement of a plurality of fastening elements of a component connected to the fastening element from a fixed position to a loose position, such that the fastening elements in the loose position release the connection between the component and the fastening element, whereby, in particular, the component can be removed from the motor vehicle. The advantages of the fastening element are those already explained in connection with the method.

[0009] It is provided that a release device of the plurality of release devices has a transport channel. The transport channel has an opening on a first side, and the transport channel is configured to be arranged on a second side, different from the first side, on a fastening element of the plurality of fastening elements of a component attached to a motor vehicle. The transport channel is configured to transport a pressure medium from the first side to the second side, so that by applying the pressure medium to the first side, a connection between the fastening element of the plurality of fastening elements and the fastening part can be released by forcing the fastening element of the plurality of fastening elements from the fixed position to the loose position.

[0010] The transport channel is integrated into the fastening component. The transport channel is specifically formed during the manufacturing of the fastening component.

[0011] The pressure medium is in particular a fluid or a gas, especially compressed air.

[0012] According to the invention, at least one unlocking device of the plurality of unlocking devices also comprises at least one hollow body. The at least one transport channel opens into the at least one hollow body on the second side and is fluidically connected to it. When the pressure medium is applied to the first side of the transport channel, the volume of the hollow body fluidly connected to the transport channel increases, so that the volume increase releases the connection between the fastening element and the fastening part by forcing the fastening element from the fixed position to the loose position. The hollow body is preferably designed as a hollow sphere or as a tube. In this way, the plurality of fastening elements can advantageously be released particularly efficiently and without pressure medium loss.

[0013] The hollow body is made of, or consists of, an elastic material. The hollow body is designed to be enlarged in volume at least once, and in particular several times, and in particular to be reduced in volume at least once.

[0014] As an alternative to at least one hollow body, the transport channel has an outlet opening on the second side, in particular such that the pressure medium transported to the second side can flow out through the outlet opening. The fastening element can then be forced from the fixed position into the loose position, in particular by applying pressure medium, in particular a pressurized gas, especially compressed air, to it – in particular directly.

[0015] According to a further development of the invention, it is provided that a transport channel of the at least one transport channel has at least one branching, where the transport channel branches into a plurality of partial transport channels.

[0016] In one embodiment, each partial transport channel opens into a hollow body associated with a fastening element of a plurality of fastening elements. When the first side of the transport channel is pressurized with the pressure medium, the hollow bodies, which are fluidically connected to the transport channel via the partial transport channels, expand in volume. This volume increase releases the connection between the plurality of fastening elements and the fastening part by forcing the plurality of fastening elements from the fixed position to the loose position. In this way, a plurality of fastening elements can advantageously be released in a coordinated manner by pressurizing the hollow bodies with a pressure medium via a transport channel. This makes it advantageously possible to release even hard-to-reach fastening elements.Each partial transport channel can therefore be advantageously assigned to a hollow body and thus to a fastening element to be released.

[0017] According to a further development of the invention, at least one fastening element of the plurality of fastening elements is designed as a snap element, in particular as a snap hook, and / or the fastening part has at least one locking area into which the at least one fastening element of the plurality of fastening elements can be locked, wherein one fastening element of the plurality of fastening elements is configured to lock into a locking area of ​​the at least one locking area. The fastening element is, in particular, locked into a locking area of ​​the at least one locking area. Advantageously, such an arrangement can be manufactured particularly easily by using snap elements, and advantageously, a connection between the fastening element and the fastening part can also be released particularly easily.

[0018] The invention will be explained in more detail below with reference to the drawing. The drawing shows: Fig. 1 A schematic representation of an embodiment of a motor vehicle with an arrangement for attaching and removing a component from the motor vehicle, Fig. 2 a schematic and enlarged representation of the arrangement made of Fig. 1, and Fig. 3. A schematic representation of a process flow diagram of a procedure for dismantling a component from the motor vehicle. Fig. 1.

[0019] Fig. Figure 1 shows a schematic representation of an embodiment of a motor vehicle 1 with an arrangement 3 for attaching and removing a component 5 to this motor vehicle 1.

[0020] The arrangement 3 comprises the component 5, preferably as an outer cladding part 5.1 of the motor vehicle 1, which has a plurality of fastening elements 7, and a fastening part 9 arranged on the motor vehicle 1.

[0021] Fig. Figure 2 shows a schematic and enlarged representation of the arrangement 3. Fig. 1.

[0022] In this context, identical and functionally equivalent elements in all figures are provided with the same reference symbols, so that reference is made to the preceding description in each case.

[0023] The majority of fastening elements 7 - of which only one fastening element 7 is shown for clarity - are arranged to fasten the component 5 to the motor vehicle 1 (not shown here) via the fastening part 9.

[0024] Preferably, at least one fastening element 7 of the plurality of fastening elements 7 is designed as a snap element, preferably as a snap hook 8. Alternatively or additionally, preferably, the fastening part 9 has at least one locking area 11 into which the fastening element 7 of the plurality of fastening elements 7 can be locked. Preferably, the fastening element 7 of the plurality of fastening elements 7 is configured to lock into a locking area 11 of the at least one locking area 11, wherein the fastening element 7 of the plurality of fastening elements 7 is preferably locked into a locking area 11 of the at least one locking area 11.

[0025] The fastening part 9 comprises a plurality of release devices 13. The release devices 13 are arranged to effect a time-coordinated displacement of a plurality of fastening elements 7 of a component 5 connected to the fastening part 9 from a fixed position 23.1 to a loose position 23.2 such that the fastening elements 7 in the loose position 23.2 release the connection between the component 5 and the fastening part 9, wherein preferably the component 5 is removable from the motor vehicle 1.

[0026] Preferably, at least one unlocking device 13 of the plurality of unlocking devices 13 has at least one transport channel 15. The transport channel 15 has an opening 19 on a first side 17.1, wherein the transport channel 15 is configured to be arranged on a second side 17.2, different from the first side 17.1, on a fastening element 7 of the plurality of fastening elements 7. Preferably, the transport channel 15 is arranged on the second side 17.2 on the fastening element 7 of the plurality of fastening elements 7. The transport channel 15 is configured to transport a pressure medium from the first side 17.1 to the second side 17.2, so that by applying pressure to the first side 17.1, the pressure medium is released.1. The connection between the fastening element 7 of the plurality of fastening elements 7 and the fastening part 9 can be released with the pressure medium by forcing the fastening element 7 of the plurality of fastening elements 7 from a fixed position 23.1 shown to be in a loose position 23.2 shown schematically.

[0027] Preferably, at least one unlocking device 13 of the plurality of unlocking devices 13 also has at least one hollow body 21, wherein the at least one transport channel 15 opens into the at least one hollow body 21 on the second side 17.2 and is fluidically connected to it. When the first side 17.1 of the transport channel 15 is pressurized with the pressure medium, the hollow body 21, which is fluidly connected to the transport channel 15, expands in volume. This expansion releases the connection between the fastening element 7 and the fastening part 9 by displacing the fastening element 7 from the fixed position 23.1 to the loose position 23.2 through the expanding hollow body 21. Preferably, the hollow body 21 is designed as a hollow sphere or as a tube.

[0028] Preferably, in an embodiment not shown here, a transport channel of the at least one transport channel 15 has at least one branch where the transport channel 15 branches into a plurality of partial transport channels.

[0029] Preferably, in an embodiment not shown here, each partial transport channel opens into a hollow body 21 associated with a fastening element 7 of a plurality of fastening elements 7, such that the hollow bodies 21, which are fluidically connected to the transport channel 15 via the partial transport channels, increase in volume when the first side 17.1 of the transport channel 15 is pressurized with the pressure medium, so that the increase in volume releases a connection between the plurality of fastening elements 7 and the fastening part 9 by forcing the plurality of fastening elements 7 from the fixed position 23.1 into the loose position 23.2.

[0030] Preferably, in another embodiment not shown here, each partial transport channel on the second side 17.2 has an outlet opening associated with a fastening element 7 of a plurality of fastening elements 7, so that the connection between the plurality of fastening elements 7 and the fastening part 9 can be released by forcing the plurality of fastening elements 7 from the fixed position 23.1 into the loose position 23.2 by the outflowing pressure medium.

[0031] Fig. Figure 3 shows a schematic representation of a process flow diagram of a method for disassembling the assembly held together by a plurality of fastening elements 7 with the fastening part 9. Fig. 2 of the motor vehicle 1 connected component 5 from the motor vehicle 1 Fig. 1.

[0032] In a first step S1, the fastening elements 7 are moved in a time-coordinated manner from the fixed position 23.1, represented by a dashed line, to the loose position 23.2, also represented by a dashed line, preferably by a displacement path indicated by arrow A. In the loose position 23.1, the fastening elements 7 release the connection between the component 5 and the fastening part 9.

[0033] Preferably, in the first step S1, the fastening elements 7 are displaced between the fixed position 23.1 and the loose position 23.2 in a manner selected from a group consisting of: pneumatic, hydraulic, electrical, magnetic, by means of a spring, and explosive.

[0034] Preferably, in the first step S1, it is provided that the fastening elements 7 are moved synchronously, preferably simultaneously.

[0035] Preferably, in the first step S1, it is provided that each fastening element 7 of the plurality of fastening elements 7 is displaced by a release element 12 of a release device 13 of a plurality of release devices 13.

[0036] In a second step S2, component 5 is removed from the motor vehicle 1.

Claims

[1] Fastening part (9) for a motor vehicle (1), with - a plurality of unlocking devices (13), wherein - the unlocking devices (13) are arranged to effect a time-coordinated displacement of a plurality of fastening elements (7) of a component (5) connected with the fastening part (9) from a fixed position (23.1) to a loose position (23.2) such that - the fasteners (7) in the loose position (23.2) release the connection between the component (5) and the fastening part (9), and wherein - a release device (13) of the plurality of release devices (13) has a transport channel (15), wherein - the transport channel (15) has an opening (19) on a first side (17.1), wherein - the transport channel (15) is designed to be arranged on a second side (17.2) different from the first side (17.1) on a fastening element (7) of the plurality of fastening elements (7) of a component (5) attached to a motor vehicle (1), wherein - the transport channel (15) is set up to transport a printing medium from the first side (17.1) to the second side (17.2), so that - by applying the pressure medium to the first side (17.1) a connection between the fastening element (7) of the plurality of fastening elements (7) and the fastening part (9) can be released by - the fastening element (7) of the plurality of fastening elements (7) is forced from the fixed position (23.1) into the loose position (23.2), wherein a release device (13) of the plurality of release devices (13) also has a hollow body (21), wherein - the one transport channel (15) on the second side (17.2) opens into the one hollow body (21) and is fluidically connected to it, wherein - the hollow body (21) which is fluidically connected to the transport channel (15) increases in volume when the first side (17.1) of the transport channel (15) is exposed to the pressure medium, so that - by increasing the volume, a connection between the fastening element (7) and the fastening part (9) is released, by - the fastening element (7) is forced from the fixed position (23.1) into the loose position (23.2), whereby - the hollow body (21) as a hollow sphere, or - is designed as a hose. [2] Fastening part (9) according to claim 1 wherein - a transport channel (15) of the at least one transport channel (15) has a branch where the transport channel (15) branches into a plurality of sub-transport channels, wherein - each partial transport channel opens into a hollow body (21) assigned to a fastening element (7) of a plurality of fastening elements (7), such that - the hollow bodies (21) which are fluidically connected to the transport channel (15) via the partial transport channels are enlarged in volume when the first side (17.1) of the transport channel (15) is pressurized with the pressure medium, so that - by increasing the volume, a connection between the majority of fasteners (7) and the fastening part (9) is released, by - the majority of fasteners (7) are forced from the fixed position (23.1) into the loose position (23.2). [3] Arrangement (3) with a fastening part (9) according to claim 2, wherein - a fastening element (7) of the plurality of fastening elements (7) is designed as a snap element, in particular as a snap hook (8), and / or - the fastening part (9) has a locking area (11) into which one fastening element (7) of the plurality of fastening elements (7) can be locked, wherein - a fastening element (7) of the plurality of fastening elements (7) is arranged to engage in a snap-in area (11) of the one snap-in area (11), wherein - the fastening element (7) is engaged in a locking area (11) of one locking area (11).

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