Vehicular interior component

Abstract

To provide a vehicular interior component which can impart good tactile sense to an occupant while reducing costs in disposal.SOLUTION: A vehicular interior component includes a soft resin material with a lattice structure formed by laminating a plurality of network structures each having a hexagonal unit shape.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an interior part for a vehicle. [Background technology]

[0002] Interior parts such as an instrument panel and a door trim lower are arranged in the interior of a vehicle. The vehicle interior parts contribute to the atmosphere inside the vehicle interior. For this reason, vehicle interior parts that aim to improve design, for example, by covering the surface of a base material with a skin material or providing stitching on the skin material, are sometimes used. On the other hand, both sides of a center console, the front of a door trim lower (specifically, a portion where an occupant's knees may come into contact when seated), and an instrument panel lower (hereinafter referred to as "instrument panel lower") are areas that an occupant directly touches, so that vehicle interior parts that emphasize materials and structures to give the occupant a soft feel are sometimes used.

[0003] For example, Patent Document 1 discloses a laminated composite interior part. This interior part is composed of a base material, an intermediate material, and a surface material, and has a structure in which a number of protrusions on the intermediate material are flexed and deformed to provide cushioning properties. This interior part also takes design into consideration by forming the surface material from a transparent material and providing the intermediate material with a design groove and stitching. Therefore, it is said that it is possible to provide a laminated composite interior part that provides a suitable feel while suppressing a decrease in design. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-171158 A Summary of the Invention [Problem to be solved by the invention]

[0005] Meanwhile, in vehicle interior parts, various materials are often combined depending on the purpose such as not compromising the design and providing a pleasant tactile sensation to the passengers. However, using multiple materials in this way tends to increase the manufacturing cost, so there is room for improvement in terms of cost. In addition, a structure made of multiple materials and materials has problems such as an increase in the number of steps required for disposal and a decrease in recyclability.

[0006] In this specification, an interior part for a vehicle is realized which uses a soft material to give a passenger a pleasant feel while also reducing disposal costs. [Means for solving the problem]

[0007] The vehicle interior part disclosed in this specification is characterized by comprising a soft resin material in which a lattice structure is formed by stacking a plurality of mesh structures, each of which has a hexagonal unit shape. Effect of the Invention

[0008] According to the vehicle interior part disclosed in this specification, since it is made of a soft resin material, it can provide a pleasant tactile sensation to the occupants. In addition, since the soft resin material is formed in a lattice structure and in multiple layers, it is possible to improve the tactile sensation and design even with a single material or member. In addition, it is expected that the disposal cost will be reduced compared to vehicle interior parts that use multiple materials and members. [Brief description of the drawings]

[0009] [Figure 1] 1 is a diagram illustrating a schematic view of a front portion of a vehicle interior in which a vehicle interior part is provided; [Diagram 2] FIG. 2 is a diagram showing a lattice structure of an interior part for a vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the vehicle interior part will be described with reference to the drawings. In Fig. 1, "Fr", "Up", and "Rh" indicate the front, upper, and right side of the vehicle, respectively.

[0011] Fig. 1 is a diagram that shows a schematic view of a front part of a vehicle cabin in which a vehicle interior part according to an embodiment is provided. More specifically, Fig. 1 is a perspective view showing a front part of a vehicle cabin of a vehicle 10 as an example in which a vehicle interior part according to an embodiment is provided. As shown in Fig. 1, an instrument panel 12, which is an interior member, is disposed under a windshield (not shown) of the vehicle 10 and in front of the driver's seat and passenger seat. Also, a steering wheel 14 is disposed in front of the driver's seat and behind the instrument panel 12 (i.e., on the side closer to the driver).

[0012] As shown in Fig. 1, the vehicle 10 includes a vehicle interior part 16. The vehicle interior part 16 is an interior part that constitutes the surface of the lower part of the instrument panel 12. The vehicle interior part 16 also constitutes a part of the door trim (more specifically, the front door trim lower) that is a lining part on the interior side of the door of the vehicle 10. In Fig. 1, the area where the vehicle interior part 16 is provided is shown as a light-shaded area.

[0013] The vehicle interior part 16 will be further described with reference to FIG. 2. FIG. 2 is a diagram showing the lattice structure of the vehicle interior part. As shown in FIG. 2, the vehicle interior part 16 forms a lattice structure 26. The lattice structure is a type of structure that creates a three-dimensional shape, and is a three-dimensional shape in which branched lattices are periodically arranged. By using the lattice structure, it is possible to make only the inside of an object hollow without changing the shape of the object, so that it is expected to reduce the weight of the object. In addition, the lattice structure is a highly useful structure that has many advantages such as excellent breathability, cooling properties, and elasticity while maintaining strength. The vehicle interior part 16 is formed of this lattice structure 26, and is composed of multiple stacked mesh structures whose unit shapes are hexagonal. In FIG. 2, in order to show the unit shapes of the vehicle interior part 16, a part of the lattice structure 26 is surrounded by a two-dot chain line, and is displayed as unit lattices 28a, 28b, and 28c in the enlarged view.

[0014] The unit lattice 28a shown in the enlarged view of FIG. 2 is an example of a unit shape of the vehicle interior part 16, and is a hexagonal mesh structure. Below the unit lattice 28a (i.e., in the depth direction), a unit lattice 28b (shown in light ink in the drawing) is arranged, and below the unit lattice 28b, a unit lattice 28c (shown in dark ink in the drawing) is arranged. That is, the lattice structure 26 constituting the vehicle interior part 16 has a structure that forms a plurality of layers in the depth direction. More specifically, as shown in the enlarged view of FIG. 2, for example, the unit lattice 28b is not necessarily arranged directly below the unit lattice 28a, but is arranged at a position shifted by about half. Also, the unit lattice 28c is not arranged directly below the unit lattice 28b, but is arranged at a position shifted by about half.

[0015] The unit lattices 28a, 28b, and 28c are formed of a single and uniform soft resin material. That is, the vehicle interior part 16 is made of a soft resin material. This soft resin material is a material used for the soles of running shoes, for example. The soles of running shoes may be made of a soft resin material that forms a lattice structure, and by using a material with such a structure for running shoes, the cushioning and stability desired by runners are realized while providing a comfortable fit due to high breathability. The vehicle interior part 16 of this example is also made of a soft resin material, so that it can give a pleasant tactile sensation to the occupant. In addition, the vehicle interior part 16 can contribute to maintaining the driver's driving posture by holding the legs of the occupant, particularly the driver, when the vehicle 10 makes a sharp turn, for example. In FIG. 1, the knee pad portion 18 is shown in dark black, and the knee pad portion 18 has an appropriate softness, so that the driver's driving posture can be maintained as described above.

[0016] In addition, the following effects can be expected from the structure and material of the vehicle interior part 16. Although shown by a dashed line in FIG. 1 because it is partially or entirely hidden by the vehicle interior part 16, ambient lighting 20 is provided on the back of the vehicle interior part 16 in the vehicle 10. The ambient lighting 20 delivers light into the vehicle interior through the lattice structure 26 of the vehicle interior part 16, adding a new look to the light and contributing to improved design. In terms of design, whereas conventional instrument panel lowers and door trim lowers were merely wall surfaces that could be expressed with words such as "lump" or "surface," the vehicle interior part 16 is configured with a lattice structure in which multiple mesh structures with unit shapes of hexagons are layered, adding a new look to the design and contributing to improved design.

[0017] In addition, because the unit shape of the vehicle interior part 16 is a mesh structure, i.e., a hollow structure, when a speaker 22 and an air conditioner outlet 24 are provided on the rear surface of the vehicle interior part 16 in the vehicle 10, it is expected to have the effect of suppressing sound loss from the speaker 22 and suppressing loss of air volume from the air conditioner outlet 24. Furthermore, because the vehicle interior part 16 uses a single soft resin material, it is possible to reduce disposal costs and labor required for disposal, and it may also contribute to the realization of carbon neutrality by improving recyclability.

[0018] The above description is merely an example, and the vehicle interior part disclosed in this specification may include a soft resin material in which a plurality of mesh structures are laminated to form a lattice structure, and other configurations may be changed as appropriate. For example, in the embodiment, the vehicle interior part 16 is a three-layer structure in which the unit lattices 28a, 28b, and 28c are stacked, but the number of layers is not limited to this. In addition, the vehicle interior part disclosed in this specification may be used in interiors other than the above-mentioned instrument panel 12 and the area around the steering wheel 14. [Explanation of symbols]

[0019] 10 vehicle, 12 instrument panel, 14 steering wheel, 16 vehicle interior part, 18 knee pad portion, 20 ambient lighting, 22 speaker, 24 air conditioner outlet, 26 lattice structure, 28a, 28b, 28c unit lattices.

Claims

[Claim 1] A soft resin material in which a lattice structure is formed by stacking multiple mesh structures each having a hexagonal unit shape; An interior part for a vehicle comprising:

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