Packing attachment structure

Abstract

To provide a packing sticking structure capable of taking sound insulation measures as well as proper light leakage measures.SOLUTION: A packing sticking structure 1 comprises a first component 100 which has a light source arranged in an inner space part sectioned with a wall part, a second component 200 built in the first component 100 to cover an opening part 111 of the first component 100, and a packing 300 stuck on a packing sticking region 120 interposed between the first component 100 and the second component 200. The packing sticking region 120 is constituted including a light shield region 121 surrounding the opening part 111, a noise preventive region 122 located on a different plane from the light shield region 121, and an inclined region 123 successively connecting the light shield region 121 and noise preventive region 122, and the packing 300 is stuck integrally over the light shield region 121, inclined region 123 and noise preventive region 122.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a packing attachment structure. [Background technology]

[0002] For example, Patent Document 1 discloses a vehicle instrument comprising a lamp housing, a plurality of partition walls formed in the lamp housing, a warning lamp mounted inside the interior partitioned by each partition wall, and a warning lens positioned in contact with each partition wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication No. 04-051829 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the vehicle instrument described in the above-mentioned Patent Document 1 can suppress light leakage by foaming the expanding ink printed on the warning lens in the same way as when a structure in which a gasket is attached is adopted. However, it is desirable to be able to provide soundproofing measures in addition to measures against light leakage, and in this regard there is room for further improvement.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a packing attachment structure that can adequately prevent light leakage while also providing soundproofing. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the gasket attachment structure of the present invention comprises a first part in which a light source is arranged in an internal space defined by a wall portion and which has an opening that opens along the emission direction of light from the light source, a second part that is assembled by stacking on the first part in a state covering the opening of the first part, and a gasket that is attached to a gasket attachment area interposed between the first part and the second part, the gasket attachment area including a light-shielding area surrounding the periphery of the opening, an abnormal noise prevention area that is located on a different plane from the light-shielding area and has a step with respect to the light-shielding area, and an inclined area that connects and continues the light-shielding area and the abnormal noise prevention area, and the gasket is attached as a single unit across the light-shielding area, the inclined area, and the abnormal noise prevention area. Effect of the Invention

[0007] The packing attachment structure according to the present invention has an effect of being able to provide an appropriate measure against light leakage while providing a soundproofing measure. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded perspective view showing a packing attachment structure according to the present embodiment. [Diagram 2] FIG. 2 is a cross-sectional view showing the packing attachment structure according to this embodiment. [Diagram 3] FIG. 3 is a plan view showing a packing attachment area according to this embodiment. [Figure 4] FIG. 4 is a schematic cross-sectional view showing a packing attachment region according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0010] For convenience of explanation, FIG. 3 and FIG. 4 only show the first part 100 and the packing 300 to be assembled to the first part 100.

[0011] [Embodiment] The packing attachment structure 1 according to this embodiment is applied to an on-vehicle instrument 10. The on-vehicle instrument 10 is a so-called meter mounted on a vehicle such as an automobile, and is mounted on an instrument panel provided on the dashboard to display various information used for driving the vehicle.

[0012] As shown in Figs. 1 and 2, the vehicle-mounted instrument 10 includes a first part 100, a second part 200, a packing 300, and a number of light sources 400. When the packing attachment structure 1 of this embodiment is applied to the vehicle-mounted instrument 10, the case corresponds to the first part 100, and the cover glass corresponds to the second part 200. The packing 300 is disposed in a predetermined area (a packing attachment area 120 described later) formed on the case, and is used as a member interposed between the two parts by assembling the cover glass to the case. The light source 400 corresponds to a warning lamp that is attached to the case and emits light toward the cover glass to form a telltale that can display a warning according to the vehicle situation. In this configuration, the packing attachment structure 1 of this embodiment realizes a configuration in which the above-mentioned packing 300 is attached integrally across the light blocking region 121, the abnormal sound prevention region 122, and the inclined region 123 that constitute the packing attachment region 120, thereby providing a soundproofing measure while also providing an appropriate measure against light leakage. Each component of the packing attachment structure 1 will be described in detail below with reference to Figs. 1 to 4.

[0013] In the following description, among the first, second, and third directions that intersect with each other, the first direction is referred to as the "first width direction X", the second direction is referred to as the "second width direction Y", and the third direction is referred to as the "stacking direction Z". Here, the first width direction X, the second width direction Y, and the stacking direction Z are perpendicular to each other. The first width direction X typically corresponds to the inclination direction of the inclined region 123 of the packing attachment region 120, etc. Furthermore, the stacking direction Z typically corresponds to the direction in which the second part 200 is stacked on the first part 100, the emission direction of light from the light source 400, etc. Unless otherwise specified, each direction used in the following description will be described as a direction in a state in which each part of the on-board instrument 10 is assembled.

[0014] In the following description, the light emitted from the light source 400 disposed in the first component 100 is referred to as emitted light L1, and the direction in which the emitted light L1 is emitted is referred to as emission direction L1z.

[0015] The first part 100 is a box-shaped part made of a resin material, etc. As shown in Figures 1 and 2, the first part 100 includes a main body part 110 and a packing attachment region 120 formed in the main body part 110.

[0016] As shown in FIG. 2, the main body 110 is composed of a wall 110K including a plurality of side walls 110Ka and an upper wall 110Kb, and the wall 110K is integrally formed to accommodate and assemble the light source 400 and the like inside (internal space 110S). The side wall 110Ka here is a wall that extends along the stacking direction Z and has a first width direction X or a second width direction Y as its thickness direction. The upper wall 110Kb is a so-called ceiling wall that extends along the first width direction X and the second width direction Y and has a thickness direction of the stacking direction Z. In the main body 110 of this embodiment, the internal space 110S is formed by a pair of side walls 110Ka in which the first width direction X is the thickness direction and a pair of side walls 110Ka in which the second width direction Y is the thickness direction. Further, a plurality of internal spaces 110S are provided, and are arranged side by side in each of the first width direction X and the second width direction Y. Therefore, in the main body 110, the light sources 400 are accommodated in each of the internal spaces 110S, and the light sources 400 are arranged side by side in each of the first width direction X and the second width direction Y.

[0017] 2, the main body 110 has an opening 111 provided in the wall 110K and opening along the stacking direction Z to communicate the internal space 110S with the external space. The opening 111 in this embodiment is formed in a substantially rectangular shape by four side walls 110Ka that form the internal space 110S (see FIG. 3). The light source 400 is disposed in a position facing the opening 111, so that the main body 110 can emit the emitted light L1 emitted from the light source 400 along the stacking direction Z along the opening direction of the opening 111. Therefore, the main body 110 can emit the emitted light L1 from the opening 111 to the outside.

[0018] The packing attachment region 120 is formed on the upper end surface of the side wall portion 110Ka or on the upper wall portion 110Kb, and is a portion where the second component 200 can be assembled with the packing 300 attached thereto, so that the packing 300 can be disposed and sandwiched between the second component 200 and the packing attachment region 120. As shown in Figs. 1 and 2, the packing attachment region 120 in this embodiment is configured as a recess in which the stacking direction Z is the depth direction. Therefore, the packing attachment region 120 can dispose the attached packing 300 in a gap formed between the second component 200 and the packing attachment region 120 (see Fig. 2).

[0019] The second component 200 is a plate-like component made of a light-transmitting material. As shown in Figs. 1 and 2, the second component 200 extends along a first width direction X and a second width direction Y, and the lamination direction Z is the plate thickness direction. When the second component 200 is assembled to the first component 100, the second component 200 is disposed so as to intersect with the emission direction L1z of the emission light L1 emitted from the light source 400. Therefore, the second component 200 of this embodiment can transmit the emission light L1 incident from the inner surface 200a located on the opening 111 side toward the outer surface 200b.

[0020] The packing 300 is a sheet-like member made of synthetic resin such as synthetic rubber. As shown in FIG. 2, the packing 300 is arranged in a state of being in close contact with the first part 100 and the second part 200 due to its own elasticity. The packing 300 is provided over the entire packing attachment area 120, which will be described later. Therefore, the packing 300 of this embodiment can fill the gap formed between the first part 100 and the second part 200. The details of the packing 300 will be described later.

[0021] The light source 400 is a member that is composed of an LED or the like and emits light when power is supplied from a power source (not shown) such as a secondary battery mounted on the vehicle. As shown in FIG. 2, the light source 400 is arranged for each internal space 110S. Therefore, the light sources 400 of this embodiment are arranged on either side of the side wall portion 110Ka that constitutes the internal space portion 110S, and can emit the emitted light L1 toward the second component 200 that is assembled to the first component 100 by each emitting light (see FIG. 2). The light source 400 is mounted on a board (not shown) located on the opposite side to the second component 200, and the board is assembled to the first component 100, thereby placing the light source 400 in the internal space portion 110S. The light source 400 is driven and controlled via the board, and when driven, a pattern (not shown) is turned on and displayed, thereby allowing the warning represented by the pattern to be visually recognized.

[0022] In this embodiment, the gasket attachment area 120 in the vehicle instrument 10 configured as described above is configured to include a shading area 121 surrounding the opening 111, an abnormal noise prevention area 122 located on a plane different from that of the shading area 121, and an inclined area 123 connecting the shading area 121 and the abnormal noise prevention area 122.

[0023] In addition, the gasket 300 attached to the gasket attachment area 120 configured as described above is configured to include a light-shielding portion 310 located in the light-shielding area 121, an abnormal noise prevention portion 320 located in the abnormal noise prevention area 122, and a connection portion 330 located in the inclined area 123.

[0024] The light-shielding region 121 is a region where the light-shielding portion 310 of the packing 300 is attached to prevent the emitted light L1 emitted from the light source 400 from leaking from a gap formed between the first part 100 and the second part 200. The light-shielding region 121 of this embodiment is formed in a hollow rectangular frame shape that is arranged to surround the periphery of the opening 111. The light-shielding region 121 is arranged to surround each of the openings 111 of the internal space portion 110S, and the regions provided for each opening 111 are connected to each other, so that the outer edge is formed into one large approximately rectangular shape, and the inner edge is formed according to the shape of each opening 111. The light-shielding portion 310 of the packing 300 attached to the light-shielding region 121 is formed according to the shape of the light-shielding region 121, and is arranged to surround the periphery of the opening 111 by hollowing out a shape corresponding to the opening 111. Therefore, by attaching the light-shielding portion 310 of the packing 300 to the light-shielding region 121, it is possible to suppress leakage of a part of the emitted light L1 to the adjacent light source 400 side. In addition, among the multiple light sources 400 provided, some of the light sources 400 are arranged adjacent to a gauge (not shown) that can display information related to the driving state of the vehicle. Therefore, by attaching the light-shielding portion 310 of the packing 300 to the light-shielding region 121, it is possible to suppress leakage of a part of the emitted light L1 to the gauge side.

[0025] The noise prevention region 122 is a region that can suppress the generation of noise when the vehicle or the on-board instrument 10 mounted on the vehicle vibrates. As shown in Figs. 3 and 4, the noise prevention region 122 of this embodiment is located at a distance from the light-shielding region 121 in the first width direction X, and is located on the upper side of the light-shielding region 121 in the stacking direction Z, that is, on the second component 200 side, with a step d. As shown in Fig. 3, the noise prevention region 122 is formed in a substantially rectangular shape extending along the first width direction X and the second width direction Y, and both of the lengths of the first width direction X and the second width direction Y are set shorter than those of the light-shielding region 121. The noise prevention part 320 of the packing 300 attached to the noise prevention region 122 is formed in a substantially rectangular shape in accordance with the shape of the light-shielding region 121, and is assembled in a compressed state between the first component 100 and the second component 200. Therefore, by attaching the noise prevention portion 320 of the gasket 300 to the noise prevention area 122, it is possible to prevent the first part 100 from coming into contact with the second part 200, thereby preventing the generation of noise due to vibration.

[0026] The inclined region 123 is a region that can connect the light shielding region 121 and the noise prevention region 122. As shown in FIG. 4, the inclined region 123 of this embodiment is formed by an inclined surface provided at the step d. Moreover, the inclined region 123 can connect the light shielding region 121 and the noise prevention region 122 that are located at an interval in the first width direction X by forming the inclined surface along the first width direction X. Moreover, as shown in FIG. 3, the inclined region 123 is formed in a substantially rectangular shape extending along the first width direction X and the second width direction Y, and the length in the second width direction Y is set to be equal to that of the noise prevention region 122. Moreover, the connection portion 330 of the packing 300 that is attached to the inclined region 123 is formed in a substantially rectangular shape in accordance with the shape of the inclined region 123, and the length in the second width direction Y is set to be equal to that of the noise prevention portion 320.

[0027] Therefore, the packing attachment region 120 of this embodiment is formed in a band shape by the noise prevention region 122 and the inclined region 123 being positioned continuously. Then, the inclined region 123 and the light-shielding region 121 are positioned continuously, so that the inclined region 123 and the noise prevention region 122 formed in a band shape extend from a part of the light-shielding region 121 formed in a substantially rectangular shape. Also, the packing 300 of this embodiment is formed in a band shape by the noise prevention part 320 located in the noise prevention region 122 and the connection part 330 located in the inclined region 123 being positioned continuously. Then, the connection part 330 located in the inclined region 123 and the light-shielding part 310 located in the light-shielding region 121 are positioned continuously, so that the connection part 330 and the noise prevention part 320 formed in a band shape extend from a part of the light-shielding part 310 formed in a substantially rectangular shape. Therefore, in this embodiment, the gasket attachment area 120 connects the light-shielding area 121 and the noise prevention area 122 via the inclined area 123, so that the gasket 300 can be attached as a single unit across the light-shielding area 121, the inclined area 123, and the noise prevention area 122.

[0028] The packing 300 of this embodiment is configured to include a slit 340 provided in the connection portion 330 and formed in a direction intersecting the inclination direction of the inclined region 123. As shown in FIG. 3, the slit 340 of this embodiment is provided on the noise prevention portion 320 side and is a portion disposed on a ridge line formed between the noise prevention region 122 and the inclined region 123. The slit 340 is a pair of notches provided at ends positioned with a gap in the second width direction Y, and is formed from the outer side toward the inner side in the second width direction Y. The slit 340 is set shorter than the length of the connection portion 330 in the second width direction Y, so that the slit 340 does not penetrate the connection portion 330 in the second width direction Y, and the end located on the inner side in the second width direction is a closed end. Therefore, the slit 340 can narrow the width (length in the second width direction Y) of the connection portion 330, and can weaken the stiffness of the packing 300 (for example, the elasticity of the packing 300), thereby providing flexibility.

[0029] As described above, the packing attachment structure 1 of this embodiment includes a first part 100 having an opening 111 that opens along the emission direction L1z of light (emitted light L1) from the light source 400 in an internal space 110S partitioned and formed by a wall part 110K, a second part 200 that is assembled by being stacked on the first part 100 in a state of covering the opening 111 of the first part 100, and a packing 300 that is attached to a packing attachment region 120 interposed between the first part 100 and the second part 200. The packing attachment region 120 includes a light-shielding region 121 that surrounds the periphery of the opening 111, an abnormal sound prevention region 122 that is located on a plane different from the light-shielding region 121 and has a step d with respect to the light-shielding region 121, and an inclined region 123 that connects and continues the light-shielding region 121 and the abnormal sound prevention region 122. The packing 300 is attached integrally across the light blocking area 121, the inclined area 123 and the noise prevention area 122.

[0030] According to this configuration, the packing attachment structure 1 can make the packing attachment region 120 into one unified region by connecting the light-shielding region 121 and the noise prevention region 122, where the packing 300 needs to be interposed between the first part 100 and the second part 200, by the inclined region 123. Therefore, the packing attachment structure 1 can integrate the packings 300 attached to the packing attachment region 120 into one. In addition, the packings 300 are integrated into one, and the number of packings 300 attached to the packing attachment region 120 is reduced, thereby improving the work efficiency during assembly. In addition, the packings 300 are integrated into one, and the man-hours required for attaching the packings 300 to the packing attachment region 120 is reduced, thereby suppressing the occurrence of positional deviation of the packing 300 with respect to the packing attachment region 120. Furthermore, by connecting the light shielding region 121 and the abnormal sound prevention region 122, which are located on different planes, by the inclined region 123, the packing 300 can be made less likely to float between the light shielding region 121 and the abnormal sound prevention region 122. This makes it possible to make the packing 300 attached to the packing attachment region 120 less likely to peel off. Therefore, the packing attachment structure 1 can provide soundproofing measures while providing appropriate measures against light leakage by appropriately attaching the packing 300 to the light shielding region 121, the abnormal sound prevention region 122, and the inclined region 123.

[0031] Further, the packing 300 described above includes the light-shielding portion 310 located in the light-shielding region 121, the noise prevention portion 320 located in the noise prevention region 122, and the connection portion 330 located in the inclined region 123. According to such a configuration, the packing attachment structure 1 is provided with the packing 300 in accordance with the light-shielding region 121, the noise prevention region 122, and the inclined region 123 of the packing attachment region 120. Furthermore, the light-shielding portion 310 of the packing 300 is attached to the light-shielding region 121, so that the emitted light L1 emitted from the light source 400 can be prevented from leaking from the internal space portion 110S in which the light source 400 is disposed through a gap formed between the first part 100 and the second part 200. Furthermore, the noise prevention portion 320 of the packing 300 is attached to the noise prevention region 122, so that the generation of noise due to the first part 100 interfering with the second part 200 can be prevented. Therefore, in the packing attachment structure 1, by appropriately attaching the packing 300 to the packing attachment area 120, it is possible to appropriately take measures against light leakage and to take measures against soundproofing.

[0032] Furthermore, the packing 300 described above is located in the inclined region 123 and has slits 340 formed in a direction intersecting the inclination direction (first width direction X) of the inclined region 123. With this configuration, the packing attachment structure 1 can easily attach the packing 300 to the packing attachment region 120 by weakening the stiffness of the packing 300 by the slits 340. At the same time, the packing 300 can be easily attached to the packing attachment region 120, making it difficult for the packing 300 attached to the packing attachment region 120 to peel off. Therefore, the packing attachment structure 1 can appropriately attach the packing 300 to the packing attachment region 120, thereby appropriately taking measures against light leakage and soundproofing measures.

[0033] Furthermore, the light source 400 described above is a warning lamp constituting a telltale that can display a warning according to the vehicle situation. With this configuration, the packing attachment structure 1 can prevent the warning lamp or gauge arranged adjacent to each other from appearing to be lit up due to the light L1 emitted from the light source 400 leaking from the gap formed between the first part 100 and the second part 200. Therefore, the packing attachment structure 1 can appropriately take measures against light leakage by appropriately attaching the packing 300 to the packing attachment area 120, and can prevent unintended indicator lights from being seen.

[0034] The packing attachment structure 1 according to the embodiment of the present invention described above is not limited to the above embodiment, and various modifications are possible within the scope of the claims.

[0035] For example, it has been described that the noise prevention area 122 is positioned with a step d on the upper side relative to the light-shielding area 121 in the stacking direction Z, but the position of the noise prevention area 122 with respect to the light-shielding area 121 is not particularly limited, and the area may be positioned with a step on the lower side in the stacking direction Z.

[0036] In addition, the second component 200 has been described as a cover glass, but is not particularly limited as long as it is a plate-shaped component made of a light-transmitting material. For example, the second component 200 may be a dial that is laminated and assembled between the case corresponding to the first component 100 and the cover glass.

[0037] Further, the number of slits 340 formed in packing 300 is not particularly limited. Further, the shape of slits 340 is not limited to the form shown in Fig. 3. Further, the position of slits 340 is not particularly limited as long as it is a position that overlaps inclined region 123.

[0038] Also, the light source 400 has been described as a warning lamp constituting a telltale, but it may be used as a light source for an indicator lamp other than a telltale, and its use is not particularly limited.

[0039] The packing attachment structure according to this embodiment may be constructed by appropriately combining the components of the embodiment and modified examples described above. [Explanation of symbols]

[0040] 1. Packing attachment structure 100 1st part 110K wall 110S internal space section 111 Opening 120 Packing attachment area 121 Shading area 122 Noise prevention area 123 Slope area 200 2nd Part 300 Packing 310 Shading part 320 Noise prevention part 330 Connection 340 Slit L1 Emitted light (light emitted from the light source) L1z emission direction X 1st width direction Y Second width direction Z stacking direction

Claims

1. a first component having an opening in an internal space defined by a wall and in which a light source is disposed, the first component having an opening extending along a direction in which light is emitted from the light source; a second part that is laminated and assembled to the first part in a state where the second part covers the opening of the first part; a packing attached to a packing attachment area interposed between the first component and the second component, The packing attachment area includes a light-shielding area surrounding the periphery of the opening, an abnormal noise prevention area located on a plane different from that of the light-shielding area and having a step with respect to the light-shielding area, and an inclined area connecting and continuing the light-shielding area and the abnormal noise prevention area, The packing is attached integrally across the light-shielding area, the inclined area, and the noise prevention area. Gasket attached structure.

2. The packing includes a light-shielding portion located in the light-shielding region, a noise prevention portion located in the noise prevention region, and a connection portion located in the inclined region. The packing attachment structure according to claim 1.

3. The packing is located in the inclined region and has a slit formed in a direction intersecting the inclination direction of the inclined region. The packing attachment structure according to claim 2.

4. The light source is a warning lamp constituting a telltale capable of displaying a warning according to the vehicle situation. The packing attachment structure according to any one of claims 1 to 3.

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