Method for manufacturing an interior component of a vehicle using real material

Abstract

The present invention relates to a method for manufacturing an interior component of a vehicle using a real material, comprising: a step of adhering a plurality of laminated printed layers to a rear surface of the real material; a step of injection-molding an injection-molded product, a step of processing a shape by placing a real material into a molding mold, and laminating the real material onto the injection-molded product which is injection-molded into a shape corresponding to the processed shape of the real material; a step of forming a light-transmitting part, processing a symbol part on the front surface of the real material, and forming the light-transmitting part protruding in the shape of the symbol part; and a step of mounting a light source unit on the injection molded product, the light source unit being configured to selectively emit light through the light transmitting portion in response to detecting a change in capacitance of the front surface of the real material.

Description

Technical Field

[0001] The present invention relates to a method of manufacturing an interior component of a vehicle. Background Art

[0002] Typically, since interior materials of vehicles require beautiful appearance and luxurious texture, real materials such as real wood, real aluminum, carbon fabric, and mother-of-pearl have been used as decorative materials for interior materials of vehicles.

[0003] Among them, real wood is widely used as door trims, door trim switches and other interior components of vehicles because of its characteristics that can realize the vehicle's advanced and environmentally friendly image.

[0004] Meanwhile, conventional mechanical buttons are configured so that light emitted from a light emitting diode (LED) is transmitted through the hollow space of the button mechanism and penetrates the surface of the button, and when people manually press the button using a push-pull type mechanical contact, a switch operation can be performed by electricity.

[0005] Here, light emitted from an LED is configured to transmit a button made of a general light-transmitting plastic material (polycarbonate (PC)) and having a visible light transmittance (in the range of 5% to 18%).

[0006] On the other hand, unlike mechanical buttons, touch electrodes are made of conductive materials and are devices that identify ON / OFF by detecting signal changes relative to the initial capacitance when a human hand approaches. Since touch electrodes are made of materials with higher conductivity, they can generate larger capacitance, making them very excellent.

[0007] The touch electrode can be applied to real materials widely used as door trims, door trim switches, and other interior parts of vehicles, and for this purpose, a method for minimizing cracks, appearance damage, etc. when molding the real material is required. Summary of the invention

[0008] The present invention relates to a method for manufacturing an interior component of a vehicle using real materials, and more particularly to a method for manufacturing an interior component of a vehicle using real materials that minimizes cracking and appearance damage by molding in consideration of the properties of the real materials.

[0009] The present invention is directed to a method for manufacturing interior components of a vehicle using real materials, by manufacturing the interior components of a vehicle using real materials (such as real wood and real stone), and manufacturing the interior components in which a touch switch is applied to the front surface of the real material and symbols corresponding to the touch switch are transmitted to the outside of the front surface of the real material by a light source, even while ensuring the visibility of the symbols on the front surface of the real material, the cracking and appearance damage of the real material can be minimized by manufacturing considering the characteristics of the real material.

[0010] According to one embodiment of the present invention, a method for manufacturing interior components of a vehicle using real materials includes: a bonding operation of bonding multiple laminated printed layers to the back of the real material; an operation of injection molding an injection molded product of processing a shape by placing the real material into a molding mold, and laminating the real material onto the injection molded product that is injection molded into a shape corresponding to the processed shape of the real material; an operation of forming a light-transmitting portion of processing a symbol portion on the front side of the real material and forming a light-transmitting portion protruding in the shape of the symbol portion; and an operation of installing a light source unit on the injection molded product, the light source unit being configured to detect a change in capacitance on the front side of the real material and selectively emit light through the light-transmitting portion.

[0011] The operation of injection molding an injection molded product includes processing the shape of the real material by simultaneously providing pressure and vacuum to the real material in a state where the molding mold is heated.

[0012] Furthermore, the bonding step includes bonding a plurality of laminated printing layers including the nonwoven fabric to the back side of the real material.

[0013] In addition, the operation of forming the light-transmitting portion includes: performing laser processing along the shape of the symbol portion printed on the front side of the real material to form a light-transmitting area in the real material; implementing embossing to laminate the silicone pad portion on the front side of the real material and allow the light-transmitting area to extend into the silicone pad portion; an operation of injecting resin into the light-transmitting area; an operation of curing the resin by irradiating ultraviolet rays to the silicone pad portion; and an operation of removing the silicone pad portion from the real material.

[0014] The operation of performing the laser processing includes performing the laser processing so that the light-transmitting area is formed at a predetermined depth, including all of the real material and the printed layer and a part of the injection molded product.

[0015] Furthermore, the operation of performing the imprinting includes forming a plurality of light-transmitting areas extending from the front surface of the real material to the symbol processing portion when the symbol processing portion has the same shape as the symbol portion engraved in the silicone pad portion.

[0016] Furthermore, the operation of injecting the resin includes injecting the resin through a plurality of supply flow paths formed in the silicone pad portion to supply the resin to the plurality of light-transmitting regions.

[0017] Furthermore, the operation of forming the light-transmitting portion further includes an operation of applying a waterproofing agent to the front surface of the real material in a state where the light-transmitting portion is formed to protrude from the front surface of the real material after removing the silicone pad portion.

[0018] The operation of forming the light-transmitting portion includes: an operation of attaching a film printed with a symbol portion to the front side of a real material; an operation of performing laser processing along the shape of the symbol portion printed on the front side of the film to form a light-transmitting area in the real material; an operation of injecting resin into the light-transmitting area; an operation of curing the resin by irradiating ultraviolet rays to the film including the light-transmitting area; and an operation of removing the film from the real material.

[0019] The operation of performing laser processing includes performing laser processing so that a light-transmitting area is formed at a selected depth, including all films, real materials and printed layers, and a portion of an injection molded product.

[0020] Furthermore, the operation of injecting the resin includes supplying the resin to each of the plurality of light-transmitting regions by injecting the resin through a supply flow path connected to the light-transmitting region.

[0021] Furthermore, the operation of forming the light-transmitting portion further includes an operation of applying a water-repellent to the front surface of the real material in a state where the light-transmitting portion is formed to protrude from the front surface of the real material after removing the film.

[0022] The operation of forming the light-transmitting portion includes: performing laser processing along the shape of the symbol portion printed on the front side of the real material to form a light-transmitting area in the real material; applying resin to the front side of the real material so as to form a resin layer on the front side of the real material including the light-transmitting area by pressing; arranging the resin layer on a film with the symbol portion printed on the front side, and selectively curing the resin layer in the light-transmitting area by irradiating ultraviolet rays; and sequentially performing the operation of removing the film and removing the uncured resin layer from the real material.

[0023] The operation of performing laser processing includes performing laser processing so that a light-transmitting area is formed at a predetermined depth, including all real materials, printed layers, and a portion of an injection-molded product.

[0024] Furthermore, the step of forming the light transmitting portion further includes an operation of applying a waterproofing agent to the front surface of the real material in a state where the light transmitting portion is formed to protrude from the front surface of the real material after sequentially removing the film and the uncured resin layer.

[0025] The real material is real wood.

[0026] According to one embodiment of the present invention, a method for manufacturing interior components of a vehicle using real materials includes the following steps: a bonding operation of bonding multiple laminated printed layers to the back side of the real material; an operation of injection molding an injection molded product of processing a shape by placing the real material into a molding mold and laminating the real material onto the injection molded product that is injection molded into a shape corresponding to the processed shape of the real material; and an operation of installing a light source unit on the injection molded product, the light source unit being configured to selectively emit light through a light-transmitting portion by detecting a change in capacitance on the front side of the real material.

[0027] The operation of injection molding an injection molded product includes processing the shape of the real material by simultaneously providing pressure and vacuum to the real material in a state where the molding mold is heated.

[0028] Furthermore, the bonding step includes bonding a plurality of laminated printing layers including the nonwoven fabric to the back side of the real material.

[0029] The real material is real stone.

[0030] According to an embodiment of the present invention, by using real materials (such as real wood and real stone) to manufacture interior components of a vehicle, and manufacturing the interior components in which a touch switch is applied to the front side of the real material and symbols corresponding to the touch switch are transmitted to the outside of the front side of the real material through a light source, even while ensuring the visibility of the symbols on the front side of the real material, the cracking and appearance damage of the real material can be minimized by manufacturing considering the characteristics of the real material.

[0031] In addition, according to an embodiment of the present invention, by processing and installing the light source module to allow the symbols to be transmitted to the outside of the real material through injection molding corresponding to the shape of the real material when the light source module is installed, the luminous uniformity and tactile feel of the symbols on the front side of the real material can be achieved.

[0032] It should be understood that as used herein, the term "automobile" or "vehicle" or other similar terms may include general motor vehicles (such as passenger cars, including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles), watercraft (including various ships and boats), aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from resources other than petroleum). As mentioned herein, a hybrid vehicle is a vehicle with two or more power sources, such as gasoline power and electric power. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features of the present invention are described in detail with reference to certain exemplary embodiments shown in the accompanying drawings, which are given for the purpose of illustration and thus not necessarily limiting the present invention, and in which:

[0034] Figure 1 are views sequentially illustrating a method of manufacturing an internal component using real materials according to an embodiment of the present invention;

[0035] Figure 2 is a view showing a printed layer in a method of manufacturing an internal component using a real material according to an embodiment of the present invention;

[0036] Figure 3A and Figure 3B is a view showing a molding process of a real material in a method of manufacturing an internal component using the real material according to an embodiment of the present invention;

[0037] Figures 4 to 8 are views sequentially showing a first embodiment of an operation of forming a light-transmitting portion in a method of manufacturing an internal component using a real material according to an embodiment of the present invention;

[0038] Fig.9A and Fig. 9B is a view showing an ON / OFF state of a light source unit in a method of manufacturing an internal component using a real material according to an embodiment of the present invention;

[0039] Figures 10 to 15 are views sequentially showing a second embodiment of an operation of forming a light-transmitting portion in a method of manufacturing an internal component using a real material according to an embodiment of the present invention;

[0040] Figures 16 to 21 are views sequentially showing a third embodiment of an operation of forming a light-transmitting portion in a method of manufacturing an internal component using a real material according to an embodiment of the present invention;

[0041] Fig. 22 , Fig.24 and Fig.25 are views sequentially illustrating a method of manufacturing an internal component using real materials according to an embodiment of the present invention; and

[0042] Fig.23 is a view illustrating a printed layer in a method of manufacturing an internal component using a real material according to an embodiment of the present invention.

[0043] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present a somewhat simplified representation of various preferred features illustrating the basic principles of the invention. The specific design features of the present invention disclosed herein (including, for example, specific dimensions, orientations, locations, and shapes) may be determined in part according to specific intended applications and use environments.

[0044] In the drawings, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. Advantages and features of the embodiments of the present invention and methods for implementing them will become more apparent through the embodiments described in detail below with reference to the accompanying drawings.

[0046] However, the present invention is not necessarily limited to the embodiments disclosed below, and can be implemented in various different forms. These embodiments are provided only to make the disclosure of the present invention more complete, and these embodiments fully inform the full scope of the present invention to those skilled in the art to which the present invention belongs, and the scope of the present invention is defined by the appended claims.

[0047] Furthermore, in the description of the present invention, when it is determined that the related known technology may obscure the gist of the present invention, its detailed description may be omitted.

[0048] Figure 1 are views sequentially illustrating a method of manufacturing an internal component using real materials according to an embodiment of the present invention, Figure 2 is a view showing a printed layer in a method of manufacturing an internal component using a real material according to an embodiment of the present invention, Figure 3A and Figure 3B is a view illustrating a molding process of a real material in a method of manufacturing an internal component using the real material according to an embodiment of the present invention.

[0049] Figures 4 to 8 are views sequentially showing a first embodiment of an operation of forming a light-transmitting portion in a method of manufacturing an internal component using a real material according to an embodiment of the present invention, Fig.9A and Fig. 9B is a view showing an ON / OFF state of a light source unit in a method of manufacturing an internal component using a real material according to an embodiment of the present invention, Figures 10 to 15 are views sequentially illustrating a second embodiment of an operation of forming a light-transmitting portion in a method of manufacturing an internal component using a real material according to an embodiment of the present invention, Figures 16 to 21 1 and 2 are views sequentially illustrating a third embodiment of an operation of forming a light transmitting portion in a method of manufacturing an internal component using a real material according to an embodiment of the present invention.

[0050] like Figure 1 As shown, a method for manufacturing an interior component of a vehicle using real materials according to one embodiment will be sequentially described below.

[0051] First, a plurality of laminated printing layers 12 are bonded to the back side of the real material 10 (operation S100).

[0052] This is to provide a cushioning effect to the real material 10 made of real wood by bonding a plurality of laminated print layers 12 including non-woven fabrics 12d to the back side of the real material 10, thereby minimizing cracking and appearance damage of the real material 10 caused by impact or the like.

[0053] In other words, Figure 2 As shown, in one embodiment, the printing layer 12 includes a backing 12a, a primer and black ink 12b, a thermoplastic polyurethane (TPU) 12c, a non-woven fabric 12d, and a formable layer 12e, and as described above, a plurality of laminated printing layers 12 are formed by adding the non-woven fabric 12d and the TPU 12c made of an elastic material, and are configured to absorb impacts, thereby being able to cushion real wood that is easily cracked (damaged).

[0054] Next, the real material 10 is processed into a desired shape by placing it into a molding mold 1 composed of an upper mold 1a and a lower mold 1b, and the real material 10 is laminated onto an injection molded product 20 injection molded in a shape corresponding to the processed shape of the real material 10 (operation S200).

[0055] As described above, in order to shape the real material 10 including the printed layer 12, first, as Figure 3A As shown, when the molding die 1 is heated, Figure 3B As shown, the shape of the real material 10 is processed by simultaneously providing pressure and vacuum to the real material 10 .

[0056] In other words, in the related prior art, since the molding is completed by directly applying heat to the material, the material will be damaged by the applied heat, and phenomena such as warping may also occur in the bending area of ​​the molding area after molding. Therefore, the real material 10 is processed through a molding process that takes into account the characteristics of the real material 10 (such as real wood or real stone). Specifically, in one embodiment, while the molding mold 1 is heated, the mold 1 is operated in the vertical direction by pressure vacuum molding. Compared with the prior art, not only the formability of the real material 10 can be improved, but also the cracking and appearance damage of the real material 10 can be minimized.

[0057] Next, in one embodiment, the symbol part 11 is processed on the front surface of the authentic material 10 , and the light-transmitting part 14 protruding in the shape of the symbol part 11 is formed (operation S300 ).

[0058] First to third embodiments in which the light transmitting portion 14 is formed on the genuine material 10 will be described sequentially below.

[0059] First embodiment

[0060] like Figure 4 As shown, in the first embodiment, laser processing is performed along the shape of the symbol portion 11 printed on the front surface of the authentic material 10 to form the light-transmitting area A in the authentic material 10 .

[0061] In the first embodiment, during laser processing, the light-transmitting area A is processed to be formed at a selected or predetermined depth, including all of the real material 10 and the printed layer 12 and a portion of the injection molded product 20, so that the real material 10 including the printed layer 12 and the injection molded product 20 can be stably bonded without a gap when the resin 40 is injected and then cured.

[0062] like Figure 5 As shown, in a state where the light-transmitting area A is formed by laser processing, the silicone pad part 30 is laminated on the front surface of the real material 10 , and thus the light-transmitting area A extends to the silicone pad part 30 .

[0063] In other words, since the symbol processing part 32 having the same shape as the symbol part 11 is engraved in the silicone pad part 30 , a plurality of light-transmitting areas A extending from the front surface of the authentic material 10 to the symbol processing part 32 are formed.

[0064] In the first embodiment, since the symbol processing portion 32 has the symbol portion 11 engraved at a depth of 0.2 cm in the silicone pad portion 30 , the light-transmitting area A may also extend to protrude 0.2 cm from the front surface of the authentic material 10 .

[0065] like Figure 6 As shown, a resin 40 such as epoxy resin is injected into each of the plurality of light-transmitting areas A in a state in which the light-transmitting areas A are extended.

[0066] In the first embodiment, the resin 40 is injected through the plurality of supply flow paths 34 formed in the silicone pad portion 30 , so that the resin 40 is supplied to each of the plurality of light-transmitting areas A. FIG.

[0067] Then, if Figure 7 As shown, the silicone pad 30 is irradiated with ultraviolet rays to cure the resin 40 injected into the light-transmitting area A, and in the cured state, the silicone pad 30 is removed.

[0068] In the first embodiment, if Figure 8 As shown, when the silicone pad 30 is removed from the real material 10, a waterproofing agent is applied to the front of the real material 10 by the waterproofing agent sprayer 2 while the light-transmitting portion 14 formed by the cured resin 40 protrudes 0.2 cm from the front of the real material 10, thereby completing the processing of the real material 10.

[0069] In the first embodiment, for example, polyurethane (PU) having excellent impact absorption and waterproof properties may be used as the waterproof agent.

[0070] Second embodiment

[0071] like Fig.10 As shown, in the second embodiment, the film 50 on which the symbol portion 11 is printed is attached to the front surface of the authentic material 10 .

[0072] In the second embodiment, since the film 50 is attached to the front surface of the real material 10 with a thickness of 0.2 cm, the light transmitting portion 14 may also extend to protrude from the front surface of the real material 10 by 0.2 cm as the resin 40 injection molded into the light transmitting area A is cured.

[0073] Afterwards, if Fig.11 As shown, laser processing is performed along the shape of the symbol portion 11 printed on the front surface of the authentic material 10 to form a light-transmitting area A in the authentic material 10.

[0074] In the second embodiment, during laser processing, the light-transmitting area A is processed to be formed at a selected or predetermined depth, which includes the entirety of the film 50, the real material 10, the printed layer 12, and a portion of the injection molded product 20. This is to enable the real material 10 including the printed layer 12 and the injection molded product 20 to be stably bonded without a gap when the resin 40 is injected and then cured.

[0075] In a state where the light-transmitting area A is formed by laser processing, as shown in FIG. Fig.12 As shown, a resin 40 , which is an epoxy resin in the second embodiment, is injected into each of the plurality of light-transmitting areas A. As shown in FIG.

[0076] Then, if Fig.13 As shown, the film 50 including the resin 40 is irradiated with ultraviolet rays to cure the resin 40 injected into the light-transmitting area A, and in the cured state, as shown in FIG. Fig.14 As shown, the film 50 is removed from the front side of the real material 10 .

[0077] In the second embodiment, if Fig.15 As shown, when the film 50 is removed from the real material 10, a waterproofing agent is applied to the front side of the real material 10 by the waterproofing agent sprayer 2 while the light-transmitting portion 14 formed by the cured resin 40 protrudes 0.2 cm from the front side of the real material 10, thereby completing the processing of the real material 10.

[0078] In the second embodiment, polyurethane (PU) having excellent impact absorption and waterproof properties may be used as the waterproof agent.

[0079] Third embodiment

[0080] like Fig.16 As shown, in the third embodiment, laser processing is performed along the shape of the symbol portion 11 printed on the front surface of the authentic material 10 to form the light-transmitting area A in the authentic material 10 .

[0081] In the third embodiment, during laser processing, the light-transmitting area A is processed to be formed at a selected or predetermined depth, which includes the real material 10, the entire printed layer 12 and a portion of the injection molded product 20. This is to enable the real material 10 including the printed layer 12 and the injection molded product 20 to be stably bonded without a gap when the resin 40 filled in the light-transmitting area A is subsequently cured.

[0082] like Fig.17 As shown, in a state where the light-transmitting area A is formed by laser processing, a resin 40 (e.g., epoxy resin) is applied to the front surface of the real material 10, and a resin layer having a selected or predetermined thickness is formed on the front surface of the real material 10 including the light-transmitting area A by pressing.

[0083] In the third embodiment, when the resin 40 applied to the front surface of the real material 10 is pressed by the slot die method, the resin layer can be processed in the form of being uniformly coated on the front surface of the real material, and in the third embodiment, as shown in FIG. Fig.18 As shown, since the resin layer is formed on the front surface of the real material 10 with a thickness of 0.2 cm, as the resin 40 is cured later, the light-transmitting portion 14 may also extend to protrude from the front surface of the real material 10 by 0.2 cm.

[0084] Thereafter, the film 50 having the symbol portion 11 printed on the front surface is arranged on the resin layer, and Fig.18 As shown, the front surface of the real material 10 including the film 50 is irradiated with ultraviolet rays, so that the resin 40 filled in the light-transmitting area A is selectively cured.

[0085] As described above, when the resin 40 is cured, Fig. 20 As shown, the film 50 and the uncured resin layer formed by the film 50 are sequentially removed from the real material 10 using the air gun 3 .

[0086] In the third embodiment, if Fig.21 As shown, when the film 50 and the uncured resin layer are removed from the real material 10, a waterproofing agent is applied to the front side of the real material 10 by the waterproofing agent sprayer 2 in a state where the light-transmitting portion 14 formed by the cured resin 40 protrudes 0.2 cm from the front side of the real material 10, thereby completing the processing of the real material 10.

[0087] In the third embodiment, polyurethane (PU) having excellent impact absorption and waterproof properties may be used as the waterproof agent.

[0088] Meanwhile, when the processing of the real material 10 is completed by any one of the first to third embodiments as described above (operation S300), a change in capacitance is detected on the front surface of the real material 10, and thus a light source unit is installed on the back surface of the injection molded product 20 to selectively emit light through the light-transmitting portion 14 (operation S400), and as Fig.9A and Fig. 9B As shown, when a change in capacitance is detected by a user's touch or the like, the light source unit may be turned on and selectively emit light through the light transmissive portion 14 .

[0089] In one embodiment, although the light source unit is not shown in the figure, the substrate for mounting on the injection molded product 20 is injection molded into a shape corresponding to the processed shape of the real material 10, and a circuit area of ​​the light source unit is formed on the substrate by laser processing, so that multiple components including electronic components and connectors for detecting capacitance changes and connecting the light source unit are installed therein, so that constant light emission uniformity and tactile feel can be achieved along the curved surface of the real material 10.

[0090] Fig. 22 , Fig.24 and Fig.25 are views sequentially illustrating a method of manufacturing an internal component using real materials according to an embodiment of the present invention, Fig.23 is a view illustrating a printed layer in a method of manufacturing an internal component using a real material according to an embodiment of the present invention.

[0091] like Fig. 22 As shown, a method for manufacturing an interior component of a vehicle using real materials according to one embodiment will be sequentially described below.

[0092] First, if Fig.24 As shown, a plurality of printed layers 12 including a symbol part 11 are bonded to the back side of the authentic material 10 (operation S100).

[0093] This is to provide a cushioning effect to the real material 10 made of real wood by bonding a plurality of laminated printed layers 12 including non-woven fabrics 12 d to the back side of the real material 10 , thereby minimizing cracking and appearance damage of the real material 10 caused by impact or the like.

[0094] In other words, Fig.23As shown, for one embodiment, the printing layer 12 includes: a backing 12a formed of a water-based adhesive and a PET film, a primer and black ink 12b, a thermoplastic polyurethane (TPU) 12c, a non-woven fabric 12d and a formable layer 12e, and as described above, a plurality of laminated printing layers 12 are formed by adding the non-woven fabric 12d and the TPU 12c made of an elastic material, and are configured to absorb shocks, thereby being able to cushion real stone that is easily broken (damaged).

[0095] Next, the real material 10 is placed in the molding die 1 and processed into the desired shape (see Figure 3A and Figure 3B ), and if Fig.25 In one embodiment shown, the real material 10 is laminated onto the injection molded product 20 which is injection molded into a shape corresponding to the processed shape of the real material 10 (operation S200).

[0096] In this embodiment, the injection molded product 20 is formed to transmit light, and since the real material 10 made of real stone also has excellent light transmittance, in a state where the symbol portion 11 is printed on the printed layer 12 and bonded to the back of the real material 10, as described above, when the real material 10 is laminated to the injection molded product 20 that has been injection molded, when the light source unit is turned on, light can be transmitted from the front of the real material 10 and emit light in the shape of the symbol portion 11.

[0097] As described above, for one embodiment, when the processing of the real material 10 is completed (operation S200), the capacitance change of the front side of the real material 10 can be detected, and thus a light source unit is installed on the back side of the injection molded product 20 for selectively emitting light through the light-transmitting portion 14 (operation S300), and thus, when the capacitance change is detected by a user's touch, etc., the light source unit can be turned on and emits light selectively through the light-transmitting portion 14.

[0098] In this embodiment, although the light source unit is not shown in the figure, the substrate for mounting on the injection molded product 20 is injection molded into a shape corresponding to the processed shape of the real material 10, and a circuit area of ​​the light source unit is formed on the substrate by laser processing, so that multiple components including electronic components and connectors for detecting capacitance changes and connecting the light source unit are installed therein, thereby achieving constant light emission uniformity and tactile feel along the curved surface of the real material 10.

[0099] According to an embodiment of the present invention, by using real materials such as real wood and real stone to manufacture interior components of a vehicle, and manufacturing the interior components in which a touch switch is applied to the front side of the real material and symbols corresponding to the touch switch are transmitted to the outside of the front side of the real material through a light source, even while ensuring the visibility of the symbols on the front side of the real material, the cracking and appearance damage of the real material can be minimized by manufacturing that takes the characteristics of the real material into consideration.

[0100] In addition, according to an embodiment of the present invention, by processing and installing the light source module, when the light source module is installed, the symbol can be transmitted to the outside of the real material through the injection molded product corresponding to the shape of the real material, thereby achieving the luminous uniformity and tactile feel of the symbol on the front side of the real material.

[0101] The present invention has been described above with reference to the embodiments shown in the accompanying drawings, but it should be understood that these embodiments are exemplary, and those skilled in the art may make various modifications according to the present invention, and all or some of the embodiments described above may also be configured in selective combination. Therefore, the technical scope of the present invention is determined by the technical spirit of the appended claims.

Claims

1. A method for manufacturing an interior component of a vehicle using real materials, comprising: The step of bonding a plurality of laminated printed layers to the back side of said real material; a step of injection molding an injection molded product by processing a shape by placing the real material in a molding die, and laminating the real material onto the injection molded product injection molded into a shape corresponding to the processed shape of the real material; a step of forming a light-transmitting portion, processing a symbol portion on the front side of the real material, and forming a light-transmitting portion protruding in the shape of the symbol portion; as well as The step of mounting a light source unit on the injection molded product, the light source unit being configured to selectively emit light through the light transmitting portion in response to detecting a change in capacitance of the front surface of the real material.

2. The method according to claim 1, wherein: The step of injection molding the injection molded product includes processing the shape of the real material by simultaneously providing pressure and vacuum to the real material in a state where the molding die is heated.

3. The method according to claim 1, wherein: The bonding step includes bonding a plurality of laminated printing layers including a nonwoven fabric to the back side of the real material.

4. The method according to claim 1, wherein: The step of forming the light-transmitting portion includes: a step of performing laser processing along the shape of the symbol portion printed on the front surface of the authentic material so as to form a light-transmitting area in the authentic material; Implementing the step of embossing, laminating the silicone pad portion on the front side of the real material, and extending the light-transmitting area into the silicone pad portion; The step of injecting resin into the light-transmitting area; A step of curing the resin by irradiating ultraviolet rays to the silicone pad; and The step of removing the silicone pad from the real material.

5. The method according to claim 4, wherein: The step of performing laser processing includes performing laser processing so that the light-transmitting area is formed at a selected depth, wherein the selected depth includes a full depth of the real material, a full depth of the printed layer, and a partial depth of the injection-molded product.

6. The method according to claim 4, wherein: The step of performing the embossing includes: in response to the symbol processing part having the same shape as the symbol part engraved in the silicone pad part, forming a plurality of light-transmitting areas extending from the front surface of the real material to the symbol processing part.

7. The method according to claim 4, wherein: The step of injecting the resin includes injecting the resin through a plurality of supply flow paths formed in the silicone pad portion to supply the resin to the plurality of light-transmitting areas.

8. The method according to claim 4, wherein: The step of forming the light-transmitting portion further includes: after removing the silicone pad portion, applying a waterproofing agent to the front surface of the real material in a state where the light-transmitting portion is formed to protrude from the front surface of the real material.

9. The method according to claim 1, wherein: The step of forming the light-transmitting portion includes: a step of attaching a film printed with the symbol portion to the front side of the authentic material; a step of performing laser processing along the shape of the symbol portion printed on the front surface of the film so as to form a light-transmitting area in the real material; The step of injecting resin into the light-transmitting area; A step of curing the resin by irradiating ultraviolet rays to the film including the light-transmitting region; and The step of removing said film from said real material.

10. The method according to claim 9, wherein: The step of performing laser processing includes: performing laser processing so that the light-transmitting area is formed at a selected depth, the selected depth including the entire depth of the film, the entire depth of the real material, the entire depth of the printed layer, and a partial depth of the injection molded product.

11. The method according to claim 9, wherein: The step of injecting the resin includes injecting the resin through a supply flow path connected to the light-transmitting area to supply the resin to each of the plurality of light-transmitting areas.

12. The method according to claim 9, wherein: The step of forming the light-transmitting portion further includes applying a waterproofing agent to the front surface of the real material in a state where the light-transmitting portion is formed to protrude from the front surface of the real material after removing the film.

13. The method according to claim 1, wherein: The step of forming the light-transmitting portion includes: a step of performing laser processing along the shape of the symbol portion printed on the front surface of the authentic material so as to form a light-transmitting area in the authentic material; a step of applying a resin to the front surface of the real material so as to form a resin layer on the front surface of the real material including the light-transmitting area by pressing; The step of arranging the resin layer on the film having the symbol portion printed on the front surface, and selectively curing the resin layer in the light-transmitting region by irradiating ultraviolet rays; a step of removing the film; and The step of removing the uncured resin layer from the real material.

14. The method according to claim 13, wherein: The step of performing laser processing includes performing laser processing so that the light-transmitting area is formed at a selected depth, wherein the selected depth includes a full depth of the real material, a full depth of the printed layer, and a partial depth of the injection-molded product.

15. The method according to claim 13, wherein: The step of forming the light-transmitting portion further includes applying a waterproofing agent to the front surface of the real material in a state where the light-transmitting portion is formed to protrude from the front surface of the real material after sequentially removing the film and the uncured resin layer.

16. The method according to claim 1, wherein: The real material is real wood.

17. A method of manufacturing an interior component of a vehicle using real materials, comprising: The step of bonding a plurality of laminated printed layers to the back side of said real material; a step of injection molding an injection molded product by processing a shape by placing the real material in a molding mold, and laminating the real material onto the injection molded product injection molded into a shape corresponding to the processed shape of the real material; and The step of mounting a light source unit on the injection molded product, the light source unit being configured to selectively emit light through the light transmitting portion in response to detecting a change in capacitance of the front surface of the real material.

18. The method according to claim 17, wherein: The step of injection molding the injection molded product includes processing the shape of the real material by simultaneously providing pressure and vacuum to the real material in a state where the molding die is heated.

19. The method according to claim 17, wherein: The bonding step includes bonding a plurality of laminated printing layers including a nonwoven fabric to the back side of the real material.

20. The method according to claim 17, wherein: The real material is real stone.

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