Vehicle lamp

Abstract

To provide an art which easily fixes components to each other.SOLUTION: A vehicle lamp comprises: a first resin molding component forming the vehicle lamp; a second resin molding component forming the vehicle lamp and assembled to the first resin molding component; and a hook-and-loop fastener 56 which fixes the first resin molding component to the second resin molding component.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] Conventionally, a vehicle lamp has been known which comprises a lamp body that is open at the front and a lamp cover that is made of translucent resin and is attached to the opening of the lamp body to form a lamp chamber, with the lamp body and lamp cover fastened together with screws (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-177854 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when fastening the lamp body and lamp cover with screws, as in the above-mentioned vehicle lamp fixture, it is necessary to provide bosses or recesses with screw holes in each part. This makes the part shape complex. Furthermore, when manufacturing parts using a mold, a mold that takes into account thick parts such as bosses may be required. Furthermore, it is necessary to fasten the parts with screws after assembling multiple parts together, which increases assembly costs.

[0005] The present invention has been made in view of the above circumstances, and one of its exemplary purposes is to provide a new technique for easily fastening components together. [Means for solving the problem]

[0006] In order to solve the above problems, one embodiment of the vehicle lamp of the present invention comprises a first resin molded part that constitutes the vehicle lamp, a second resin molded part that constitutes the vehicle lamp and is assembled to the first resin molded part, and a hook-and-loop fastener that fixes the first resin molded part to the second resin molded part.

[0007] According to this embodiment, the resin molded parts can be fixed to each other without using screws. Also, the resin molded parts can be disassembled more easily than when the resin molded parts are fixed to each other with adhesive or double-sided tape, which makes it easier to recycle the parts.

[0008] The second resin molded part may be provided with a pin for positioning it relative to the first resin molded part, which makes it easier to fasten the parts together in a predetermined position with a hook-and-loop fastener.

[0009] The hook-and-loop fastener may have an engaging portion consisting of a plurality of hook portions provided on the second resin molded part, and an engaged portion consisting of a plurality of loop portions provided on the first resin molded part. The engaging portion and the engaged portion may contact each other to fix the second resin molded part to the first resin molded part. In this way, by bringing the engaging portion and the engaged portion into contact, the engaging portion and the engaged portion are ultimately firmly engaged with each other, and the parts are fixed to each other. Here, "the parts are fixed to each other by the engaging portion and the engaged portion contacting each other" includes a state in which a part of the engaging portion and a part of the engaged portion that are in contact with each other are engaged with each other at a microscopic level.

[0010] The second resin molded part may be made of a material softer than the first resin molded part, and the hook portions may be integrally molded with the second resin molded part, which increases the degree of freedom in the shape of the hook portions.

[0011] The second resin molded part may be a lens made of polycarbonate, and the first resin molded part may be a design member made of polybutylene terephthalate.

[0012] The plurality of hook portions may be integrally formed on the inner surface of the lens, which reduces the number of parts and eliminates the need for a step of attaching the hook portions to the lens.

[0013] Any combination of the above components, and conversion of the expression of the present invention between a manufacturing method, a lighting device or illumination, a light-emitting module, a light source, etc. are also valid aspects of the present invention. [Effects of the Invention]

[0014] According to the present invention, components can be easily fixed to each other. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of a vehicle lamp according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view of a design member of the vehicle lamp according to the present embodiment. [Figure 3] FIG. 2 is a rear view of the outer lens according to the embodiment. [Figure 4] FIG. 2 is a schematic diagram illustrating an example of a hook-and-loop fastener. [Figure 5] 10 is a schematic diagram showing another embodiment of the engaging portion of the hook-and-loop fastener. FIG. [Figure 6] 2 is a view showing a main part of the vehicular lamp of FIG. 1 taken along the line AA. DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will be described below based on preferred embodiments with reference to the drawings. The same or equivalent components, parts, and processes shown in each drawing will be given the same reference numerals, and redundant explanations will be omitted where appropriate. Furthermore, the embodiments are illustrative and do not limit the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

[0017] FIG. 1 is a perspective view of a vehicle lamp according to this embodiment. FIG. 2 is a perspective view of a design component of the vehicle lamp according to this embodiment. FIG. 3 is a rear view of an outer lens according to this embodiment. The vehicle lamp 10 shown in FIG. 1 is a vehicle headlamp. The vehicle lamp 10 comprises a lamp body 12 having a horizontally elongated opening formed on the front surface, an extension 14 attached to the periphery of the opening of the lamp body 12 so as to cover the horizontally elongated opening, and an outer lens 16 covering the front surface of the extension 14. The extension 14 is a design component made of polybutylene terephthalate. The outer lens 16 is a transparent component made of polycarbonate.

[0018] The lamp body 12, the extension 14, and the outer lens 16 are each a resin molded part manufactured using a mold. The outer lens 16 is assembled to the extension 14. At this time, the outer lens 16 and the extension 14 are fixed together with a hook-and-loop fastener 44, which will be described later. Figure 4 is a schematic diagram illustrating an example of a hook-and-loop fastener.

[0019] The hook-and-loop fastener 44 shown in Figure 4 has an engaging portion 48 consisting of multiple hook portions 48a provided on the outer lens 16, and an engaged portion 50 fixed to the extension 14 and consisting of multiple loop portions 50a.

[0020] The engagement portion 48 has multiple hook portions 48a arranged two-dimensionally on the surface of a plate 48b. The plate 48b has multiple through holes 48c formed therein. The outer lens 16 has multiple positioning bosses 46a for fixing the engagement portion 48 at a predetermined position. The bosses 46a have their tips heat-caulked while protruding from the through holes 48c, thereby fixing the engagement portion 48 to the outer lens 16. In this way, when the multiple hook portions 48a are separate parts fixed to the outer lens 16, the multiple hook portions 48a can be fixed to locations other than predetermined locations on the outer lens 16. The multiple hook portions 48a can be fixed by screwing the plate 48b, on which the multiple hook portions 48a are provided, to the other part, or by using adhesive or double-sided tape.

[0021] On the other hand, the engaged portion 50 has a plurality of loop portions 50a arranged two-dimensionally on the surface of the plate 50b. The engaged portion 50 is fixed to the extension 14 with double-sided tape 52 attached to the back side of the plate 50b. The loop portions 50a have a large number of annular raised portions arranged on the plate 50b. When the annular raised portions come into contact with the hook portion at the tip of the hook portion 48a, the outer shape of the annular raised portions changes or the orientation of the annular portion changes, and the hook portion engages with the hook portion of the hook portion 48a. The shape of the tip of the hook portion 48a only needs to be bent, and may be bent (folded) at a 90-degree angle (see FIG. 4), curved in an arc, or spherical with a larger shaft diameter at the tip.

[0022] Fig. 5 is a schematic diagram showing another embodiment of the hook-and-loop fastener's engaging portion. The hook portion 48a of the engaging portion 54 shown in Fig. 5 is formed by integral molding with the outer lens 16. This reduces the number of parts and eliminates the need for a process for attaching the hook portion 48a to the outer lens 16. Furthermore, the outer lens 16 according to this embodiment is made of a material (polycarbonate) that is softer than the extension 14. This increases the degree of freedom in the shape of the multiple hook portions 48a. Here, the degree of softness can be expressed, for example, by the modulus of elasticity (Young's modulus) or the hardness.

[0023] 4, the hook-and-loop fastener 44 is brought into contact with the engaging portion 48 and the engaged portion 50 in an opposing state and pressure is applied, ultimately firmly engaging the engaging portion 48 and the engaged portion 50 and securing the extension 14 to the outer lens 16. The extension 14 is secured to the outer lens 16 by the single hook-and-loop fastener 44 so as not to shift in any of the vehicle longitudinal direction, vehicle width direction, and vehicle vertical direction. Here, securing the extension 14 to the outer lens 16 by the engaging portion 48 and the engaged portion 50 coming into contact includes a state in which the tips of the hook portions 48a and the loop portions 50a, which are in contact with each other, are engaged in a microscopic view.

[0024] The vehicle lamp 10 according to this embodiment allows resin molded parts to be fastened together without using screws. Furthermore, the resin molded parts can be disassembled more easily than when they are fastened together with adhesive or double-sided tape, making the parts easier to recycle. Furthermore, when fastening resin molded parts together with screws, a slide mechanism is required in the mold to prevent sink marks in the boss hole in one of the resin molded parts, which increases the cost of the mold. However, fastening resin molded parts together with hook-and-loop fasteners simplifies the mold configuration.

[0025] Fig. 6 is a diagram showing a main part of the AA cross section of the vehicle lamp of Fig. 1. As shown in Fig. 6, the outer lens 16 has a pin 16a for positioning with respect to the extension 14, and an engaging portion 54 integrally formed on the inner surface. The extension 14 has a through hole 14a corresponding to the pin 16a. This makes it easy to fix the components together in predetermined positions with the hook-and-loop fastener 56 by assembling the outer lens 16 to the extension 14 so that the pin 16a is inserted into the through hole 14a.

[0026] Although the present invention has been described above with reference to the above-mentioned embodiments, the present invention is not limited to the above-mentioned embodiments, and suitable combinations and substitutions of the configurations of the embodiments are also included in the present invention. Furthermore, it is possible to suitably rearrange the combinations and processing orders in the embodiments based on the knowledge of those skilled in the art, and to make modifications to the embodiments such as various design changes, and such modified embodiments are also included in the scope of the present invention. [Explanation of symbols]

[0027] 10 Vehicle lamp fixture, 12 Lamp body, 14 Extension, 14a Through hole, 16 Outer lens, 16a Pin, 44 Hook and loop fastener, 48 Engaging portion, 48a Hook portion, 50 Engaged portion, 50a Loop portion, 54 Engaging portion, 56 Hook and loop fastener.

Claims

1. a first resin molded part that constitutes a vehicle lamp; a second resin molded part that constitutes a vehicle lamp and is assembled to the first resin molded part; a hook-and-loop fastener that fastens the first resin molded part to the second resin molded part; A vehicle lamp comprising:

2. 2. The vehicle lamp according to claim 1, wherein the second resin molded part is provided with a pin for positioning the second resin molded part relative to the first resin molded part.

3. The hook-and-loop fastener is an engaging portion formed of a plurality of hook portions provided on the second resin molded part; an engaged portion formed of a plurality of loop portions provided on the first resin molded part, 3. The vehicle lamp according to claim 1, wherein the second resin molded part is fixed to the first resin molded part by contact between the engaging part and the engaged part.

4. the second resin molded part is made of a material softer than the first resin molded part, 4. The vehicle lamp according to claim 3, wherein the plurality of hook portions are formed integrally with the second resin molded part.

5. the second resin molded part is a lens made of polycarbonate, 4. The vehicle lamp according to claim 3, wherein the first resin molded part is a design member made of polybutylene terephthalate.

6. 6. The vehicle lamp according to claim 5, wherein the plurality of hook portions are integrally formed on the inner surface of the lens.

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