Abstract
The present invention relates to a device (10) for actuating a mobile part (21) of a motor vehicle (20) particularly a door, a hatch flap or such like, comprising a handle element (30),
characterized in that
the handle element (30) is at least partially configured from a composite material (40) which comprises a plastic material with a water absorption of less than 1% and a fibre material.
Claims
1-21. (canceled)
22. A device for actuating a mobile part of a motor vehicle, comprising a handle element, wherein the handle element is at least partially configured from a composite material which comprises a plastic material with a water absorption of less than 1% and a fibre material.
23. The device according to claim 22, wherein the plastic material comprises a water absorbance of less than approximately 0.1%.
24. The device according to claim 22, wherein the plastic material is a polyolefin.
25. The device according to claim 22, wherein the composite material comprises a volume fraction of fibre material of approximately 10% to 60%, preferably of approximately 20% to 50%, preferably of approximately 30%.
26. The device according to claim 22, wherein the fibre material comprises glass fibre and/or carbon fibre.
27. The device according to claim 22, wherein a surface of the handle element is treated with a surface treatment for a coatability of the surface previous to an application of a coating.
28. The device according to claim 27 wherein the handle element comprises at least one inner and one outer layer after a surface treatment wherein the inner layer is from a composite material and the outer layer is configured by a coatable plastic material.
29. The device according to claim 22, wherein on a surface of the handle element a coating is applied.
30. The device according to claim 22, wherein the handle element comprises a cavity.
31. The device according to claim 22, wherein the handle element is a protruding door handle or a fixed handle or an integrated door handle.
32. A method for producing a device, for actuating a mobile part of a motor vehicle, comprising a handle element, wherein in a first step the handle element is at least partially configured from a composite material which comprises a plastic material with a water absorbance of less than approximately 1% and a fibre material.
33. The method according to claim 32, wherein a plastic material is used with a water absorbance of less than approximately 0.1%.
34. The method according to claim 32, wherein in a second step a surface of the handle element is treated with a surface treatment for a coatability of the surface.
35. The method according to claim 34, wherein the surface is coated in a plasma process during the surface treatment.
36. The method according to claim 34, wherein the surface is treated with a corona method during the surface treatment.
37. The method according to claim 34, wherein the surface is coated with a base coat during the surface treatment.
38. The method according to claim 34, wherein the surface is coated with a coatable plastic material during the surface treatment.
39. The method according to claim 34, wherein the surface is coated with a flame impingement during the surface treatment.
40. The method according to claim 39, wherein the handle element is produced with a cavity, and that the cavity is filled or at least mainly filled by a filling element during the flame impingement.
41. The method according to claim 40, wherein the handle element is actively and/or at least passively cooled by the filling element during the flame impingement.
42. The method according to claim 32, wherein a coating is applied to a surface of the handle element.
43. The device according to claim 24, wherein the plastic material is polypropylene.
44. The device according to claim 30, wherein the handle element comprises the cavity for an electronic element.
45. The method according to claim 40, wherein the handle element is produced with a cavity for an electronic element.
Description
[0032] Further advantages, features and details of the invention result from the subsequent description in which embodiments of the invention are described in detail with relation to the drawings. Thereby, the features described in the claims and in the description can be each single for themselves or in any combination be essential for the invention. It is shown schematically:
[0033] FIG. 1a, b, c a device according to the invention with a handle element,
[0034] FIG. 2a, b, c, d, e sectional views of a handle element and
[0035] FIG. 3 a method according to the invention.
[0036] Elements and components with the same function and mode of operation have the same reference signs in FIGS. 1a, b, c, 2a, b, c, d, e and 3, respectively.
[0037] In FIGS. 1a, b, c a device according to the invention for actuation of a mobile part 21 of a motor vehicle 20 is shown. Thereby, in FIG. 1a the handle element 30 is shown in a resting position and in FIG. 1b in an activated position. Thereby, in the activated position a part of the handle element 30 which is configured by the protruding door handle 32 is deviated about a bearing shaft 36 (not shown, see FIG. 1c) so that for example an opening mechanism of the mobile part 21 of the motor vehicle 20 can be released. Further, in FIGS. 1a and 1b a handle end 33 is shown which can be part of the handle element 30. Such a handle end 33 can thereby for example be a simple design element but also fulfil functional tasks like for example the acceptance of a closing cylinder for closing the mobile part 21 of the motor vehicle 20. FIG. 1c shows a protruding door handle 32 which is part of a handle element 30 as single component. Thereby, particularly a cavity 34 in the handle element 30 is shown in which an electronic element 35 is assembled. Such an electronic element 35 can thereby for example provide a sensor system, particularly for example for a keyless entry function, but also an illumination or a heating for the handle element 30. Further, a first intersecting line A and a second intersecting line B are shown wherein the corresponding sectional views of the handle element 30 are shown in FIGS. 2a to 2e. Also the bearing shaft 36 is shown. In FIGS. 1a, b, c it can be seen that the handle element 30, here comprising a protruding handle 32 and a handle end 33, are assembled at the mobile part 21 of the motor vehicle 20 such that they comprise the elements of a device 10 which are assembled outside the motor vehicle 20. A surface 31 of the handle element 30 is therewith visible and at the same time exposed to environmental influences. Due to this reasons, the surface 31 of the handle element 30 is particularly equipped with a coating. Thereby, by such a coating 37, which is for example injected, sprayed or applied as a powder coating in an electrostatic injection method, different tasks can be fulfilled. By such a coating 37 one or multiple properties like for example a haptic of the handle element 30 can be alternated. Naturally, by such a coating 37 also the visual appearance, particularly regarding the colouring and/or a gloss effect, the handle element 30 can be altered, preferably adjusted to the remaining vehicle 20. Particularly, by such a coating a protective function can be performed such that the handle element 30 particularly the surface 31 of the handle element 30 can be protected from environmental influences by the coating 37 like for example UV radiation. According to the invention it can be intended to increase the coatability of the surface 31 of the handle element 30 by a surface treatment 61 (not shown).
[0038] The FIGS. 2a, b, c show a sectional view of a handle element 30 of a device 10 according to the invention along a first intersecting line A (see FIG. 1c), FIGS. 2d, e show sectional views of a handle element 30 along the second intersecting line B. Thereby, FIGS. 2a to 2e show different embodiments and variations of the handle element 30 of the device 10 according to the invention. The different shown handle elements 30 are further not coated. In FIG. 2a a handle element 30 is shown directly after production. The handle element 30 thereby consists in the shown embodiment completely from a composite material 40. A surface 31 of the handle element 30 is in this embodiment still not treated. An application 62 of a coating (not shown) in this embodiment of a handle element 30 would occur directly to the composite material 40 in a device 10 according to the invention. Exemplary possibilities in order to increase a coatability of the surface 31 are shown in FIGS. 2b and 2c. In FIG. 2b the surface 31 of the handle element 30 of the device 10 according to the invention is coated with a base coat 50. By such a base coat 50 it can be achieved that the coatability of the surface 31 of the handle element 30 is significantly improved. This can be particularly necessary with composite materials 40 which comprise polyolefins, particularly polypropylene, in order to be able to use normally used coatings during the application 62 of a coating (not shown). A further possibility in order to provide such an improvement of the coatability of the surface 31 is shown in FIG. 2c such that a coatable plastic material 53 is applied to the handle element 30 as an outer layer 52. The composite material 40 of the handle element 30 thereby configures an inner layer 51. Particularly, like shown, the composite material 40 of the handle element 30 can be completely covered from the outer layer 52 of the coatable plastic material 53. Thereby, likewise a coatability of the handle element 30 can be provided. Further possibilities for increasing the coatability of the surface 31 of the handle element 30 provide methods in which by oxidation the polarity of the surface 31 is increased. Examples for such methods are for example a corona method, a plasma method or a treatment of the surface 31 by a flame impingement. In FIGS. 2d and 2e further sectional views of the handle element 30 are shown wherein the section along a second intersecting line B is performed (see FIG. 1c). Thereby, it is recognizable that the handle element 30 comprises a cavity 34 in this region. The cavity 34 can thereby particularly receive an electronic element 35 (not shown). Directly after the production of the handle element 30 this electronic unit 35 is not yet assembled in the cavity 34. Particularly, with a surface treatment 61 (not shown) by a flame impingement by such a cavity 34 it can result in a form alteration of the handle element 30. Therefore it is advantageous like shown in FIG. 2e to arrange a filling element 54 in the cavity 34 which particularly completely fills the cavity 34. Already thereby a form alteration of the handle element 30 during the flame impingement can be avoided. Naturally, a retaining element (not shown) can be intended that grabs the handle element 30 from the outside and counteracts to a deformation of the handle element 30 during the flame impingement. Further, the shown filling element 54 comprises cooling channels 55, wherein additionally an active cooling of the handle element 30 from composite material 40 is enabled. The flame impingement it can particularly result in that fibres from the fibre material of the composite material 40 are damaged. This can be avoided by the cooling of the handle element 30 by a cooling fluid circulating in a cooling channel 55. Thereby, the filling element 54 can be additionally configured in a way that by a passive cooling meaning a derivation of thermal energy is enabled. In order to achieve this for example the filling element 54 can be configured on a metal material.
[0039] FIG. 3 schematically shows a method according to the invention for the production of a device 10 for actuating a mobile part 21 of a motor vehicle 20 (not shown). Thereby, particularly in a first handle element 30 of the device 10 is at least sectionally configured 60 from a composite material 40. It is essential for the invention that the plastic material of the composite material 40 comprises a water absorption of less than approximately 1% preferably less than 0.1% and further a fibre material is used. Thereby, a particularly stable and further a particularly volume stable, particularly under the influence of water and/or moisture volume stable, handle element 30 can be configured. After production 60 as a second step directly the application 62 of a coating can occur. By such a coating properties of the handle element 30, particularly for example the haptic of the handle element 30, can be altered. The appearance of the handle element 30, particularly for example a colouring, can be altered by the application 62 of a coating particularly adapted to the appearance of the remaining motor vehicle 20. Further, by the application 62 of a coating a protection of the handle element 30 is enabled, for example from environmental influences like for example UV radiation. In order to enable the application 62 of a coating for all used composite materials 40 it can particularly be an advantage to perform a surface treatment 61 of a surface 31 of the handle element 30 as a second step of the method according to the invention previous to the application 62 of the coating. As surface treatment 61 thereby particularly methods can be used which result in an oxidation and therewith an increase of the polarity of the surface 31. Such methods are for example a surface treatment in a plasma process, a corona treatment but also a flame impingement. Naturally, as surface treatment 61 the application 62 of a base coat 50 and/or the covering of the surface 31 with a coatable plastic material 53 are conceivable. Overall by all used surface treatments 61 the coatability of the surface 31 is increased or is produced. A subsequent application 62 of a coating can be partly enabled. Overall, by a method according to the invention a device 10 for actuating a mobile part 21 of a motor vehicle 20 particularly a door, a hatch flap or such like, can be produced whose handle element 30 is configured particularly stable and further volume resistant. At the same time by the use of a composite material 40, which comprises the plastic material and a fibre material, a device according to the invention can be produced particularly cost efficient. Preferably by a method according to the invention further an application 62 of a coating handle element 30 of the device 10 can be intended wherein particularly, if necessary, a surface treatment 61 can be intended in order to increase a coatability of the surface 31 of the handle element 30.
[0040] The previous description of the embodiments describes the present invention only within the scope of examples. Naturally, single features of the embodiments as far as technically meaningful can be freely combined with one another without leaving the scope of the present invention.
REFERENCE LIST
[0041] 10 Device
[0042] 20 Motor vehicle
[0043] 21 Mobile part
[0044] 30 Handle element
[0045] 31 Surface
[0046] 32 Protruding door handle
[0047] 33 Handle end
[0048] 34 Cavity
[0049] 35 Electronic element
[0050] 36 Bearing shaft
[0051] 37 Coating
[0052] 40 Composite material
[0053] 50 Base coat
[0054] 51 Inner layer
[0055] 52 Outer layer
[0056] 53 Coatable plastic material
[0057] 54 Filling element
[0058] 55 Cooling channel
[0059] 60 Production
[0060] 61 Surface treatment
[0061] 62 Application of a coating
[0062] A First intersecting line
[0063] B Second intersecting line
