JP2023155737A - Ceiling interior member and attachment structure of lighting member - Google Patents

Abstract

To prevent unintentional light leakage from a lighting member to a passenger compartment side without increasing work hours of attachment and costs in a vehicle, such as a panorama roof vehicle, including the lighting member attached to a ceiling interior member.SOLUTION: A vehicle ceiling interior member 10 has: a base material 11; openings 15, 16 formed at the base material 11; a reinforcement material 12 which is provided on a back surface of the base material 11 along outer peripheries of the openings 15, 16 and reinforces the ceiling interior member 10; and a lighting member 20. The reinforcement material 12 is formed by a light-blocking material. The lighting member 20 is fitted in the base material 11 at a position close to the opening 15 so that a back surface of the lighting member 20 appears on the back surface side of the base material 11 and penetrates through the base material 11. At least a part of the back surface of the lighting device 20 is covered with the reinforcement material 12.SELECTED DRAWING: Figure 3

Description

The present invention relates to the attachment of a lighting member in a vehicle such as an automobile, and particularly relates to a ceiling interior member for a vehicle that includes a lighting member, and a structure for mounting the lighting member.

2. Description of the Related Art In vehicles such as automobiles, a flip-up sun visor is provided on the ceiling of the cabin, close to the boundary between the ceiling of the cabin and the windshield. Furthermore, a vanity lamp is often provided on the ceiling of the vehicle interior as a lighting member at a position covered by the sun visor when the sun visor is not in use. A vanity lamp is a component that constitutes the ceiling of a vehicle and is attached as an embedded unit type component to a ceiling interior member (roof trim) that is arranged on the passenger compartment side. A light source such as an incandescent bulb or a light emitting diode is provided inside the vanity lamp. The front side of the vanity lamp, that is, the passenger compartment side, is made of a translucent material, and the vanity lamp is used to illuminate the user's face when using a mirror attached to the sun visor. . The back side of the vanity lamp is made of a light-shielding member, but a gap is formed for heat radiation and fixing claws. Therefore, light from the vanity lamp may leak into the space between the ceiling interior member and the roof panel through this gap.

By the way, some cars are called panoramic roof cars, in which most of the roof is made of transparent material such as glass. In a panoramic roof vehicle, a large opening is provided in the roof panel and ceiling interior material, and the glass roof is exposed at the opening when viewed from the passenger compartment side. Patent Document 1 discloses that in order to increase the rigidity of the ceiling interior member around an opening for a glass roof, the ends of the ceiling interior member are folded back so that the ceiling interior member sandwiches a reinforcing material. are doing.

In a vehicle with a panoramic roof, light that enters as leakage light from the back side of the vanity lamp to the back side of the ceiling interior member is connected to the ceiling interior member at the end of the opening provided in the ceiling interior member to expose the glass roof. There is a risk of leakage into the passenger compartment through the gap between the glass roof and the vehicle. In addition, the light leaking from the vanity lamp may illuminate the back side of the ceiling interior member, and this may be reflected on the glass roof. Such light leakage and reflection are not intended for the use of vanity lamps and detract from the aesthetic appearance of the vehicle. When installing a shade to cover the glass roof on the passenger compartment side as necessary, placing a shade unit that stores the shade can reduce the effects of light leakage and reflections, but it is not recommended to install a shade. If not, there are particular concerns about light leakage and reflections.

In the above, we have explained that the light that unintentionally leaks from the back side of the vanity lamp may spoil the aesthetic appearance of the vehicle.However, in addition to vanity lamps, there are other lighting components that can be attached to the ceiling interior parts of vehicles. There are room lamps and map lamps. Even with lighting components other than vanity lamps, if light leaks from the back side of the lighting component when it is attached to a ceiling interior component, similar Light leakage may occur.

Japanese Patent Application Publication No. 2014-118032

In order to prevent light leakage from lighting components, it is possible to add a light shielding component that is separate from the lighting components and ceiling interior components, but adding the component increases the number of installation work and costs. I'll be there.

An object of the present invention is to prevent unintentional light leakage from the lighting member to the passenger compartment side of a vehicle such as a panoramic roof vehicle equipped with a lighting member attached to a ceiling interior member without increasing work man-hours or costs. An object of the present invention is to provide a ceiling interior member and a mounting structure for a lighting member.

The vehicle interior member of the present invention is a ceiling interior member for a vehicle, and includes a base material, an opening formed in the base material, and a back surface of the base material along the outer periphery of the opening to reinforce the ceiling interior member. and a lighting member, the reinforcing member is made of a light-shielding material, and the back surface of the lighting member appears on the back side of the base material at a position close to the opening and penetrates through the base material. The lighting member is fitted into the base material, and at least a portion of the back surface of the lighting member is covered with a reinforcing material.

The mounting structure of the present invention is a lighting member mounting structure in which a lighting member is attached to a ceiling interior member disposed in a vehicle compartment, wherein the ceiling interior member includes a base material and a base material formed on the base material. It has an opening and a reinforcing material provided on the back side of the base material along the outer periphery of the opening to reinforce the ceiling interior member, and the back side of the lighting member appears on the back side of the base material at a position close to the opening. The lighting member is fitted into the base material so as to penetrate through the base material, the reinforcing member is made of a light-shielding material, and at least a portion of the back surface of the lighting member is covered with the reinforcing material.

For example, in a vehicle with a panoramic roof, an opening is formed in the ceiling interior material to expose the glass roof when viewed from the passenger compartment, but the strength and rigidity of the ceiling interior material around the opening is reduced by forming the opening. descend. In the present invention, a light-shielding material is used as a reinforcing material provided along the outer periphery of the opening in the ceiling interior member for reinforcement around the opening, and the lighting member is fitted into the base material of the ceiling interior member. Sometimes, the back side of the lighting member is covered with a reinforcing material. This makes it possible to use the reinforcing material used to reinforce the opening to prevent light from leaking from the lighting component, allowing unintended leakage of light from the lighting component into the passenger compartment without increasing installation man-hours or costs. This will help prevent light leakage.

The lighting member may be provided with a pulling part, etc. for pulling the lighting member from the back side of the ceiling interior member, that is, the side that is not in the passenger compartment, when the lighting member is fitted into the base material of the ceiling interior member. . In this case, a portion of the reinforcing material covering the back surface of the lighting member may be cut out to expose the tension portion of the lighting member at that location. With this configuration, the lighting member can be reliably fitted to the base material using the tensioning portion, and the fitting status of the lighting member can be easily inspected through the exposed portion.

When a part of the reinforcing material is cut out to expose a part of the back side of the lighting member, the reinforcing material surrounds at least a part of the cut out position and the reinforcing material moves from the cut out position toward the opening. It is preferable to provide a buffer material that blocks light. By providing such a cushioning material, even if a portion of the reinforcing material is cut out, unintended light leakage to the passenger compartment side can be more reliably prevented. In addition, by forming the cushioning material from an elastic material and making sure that the top surface of the cushioning material is in close contact with the surface of the glass roof on the passenger compartment side, unintended light leakage to the passenger compartment side can be even more reliably prevented. It becomes like this.

According to the present invention, in a vehicle such as a panoramic roof vehicle equipped with a lighting member attached to a ceiling interior member, it is possible to prevent unintended light leakage from the lighting member to the vehicle interior without increasing work hours or costs. It becomes like this.

FIG. 1 is a perspective view showing the overall shape of a ceiling interior member according to an embodiment of the present invention. FIG. 2 is a perspective view showing a conventional vanity lamp mounting structure. FIG. 2 is an enlarged perspective view of the portion indicated by A in FIG. 1. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. FIG. 4 is a sectional view taken along line VV in FIG. 3. FIG.

Next, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention relates to the attachment of a lighting member to a ceiling interior member of a vehicle. In the following, the vehicle is a passenger car, particularly a passenger car called a panoramic roof car, and the lighting member is a vanity lamp. The present invention will be explained as follows. Naturally, in the present invention, the lighting member is not limited to vanity lamps, and the vehicle to which the present invention is applied is not limited to passenger cars such as panoramic roof cars. For example, the present invention can be applied to a room lamp or a map lamp provided in a vehicle.

The ceiling interior member 10 according to an embodiment of the present invention shown in FIG. and Fig. 5). In the figure, front, rear, left, right, top, and bottom are indicated, which indicate the orientation of the ceiling interior member 10 in the vehicle when the ceiling interior member 10 is attached to the vehicle. When describing the ceiling interior member 10 in this specification, it shall be based on the directions shown as front, rear, left, right, top, and bottom in FIG. 1 . Further, regarding the ceiling interior member 10 and its constituent elements, the term “back” refers to the surface of the ceiling interior member 10 located on the opposite side from the vehicle interior, that is, the surface that becomes the upper side when attached to the vehicle.

The ceiling interior member 10 is composed of a base material 11 and a reinforcing material 12 provided on a part of the upper surface, that is, the back surface of the base material 11 in order to reinforce the base material 11. The base material 11 is configured to cover the entire ceiling surface of the vehicle interior as an interior member. Since the vehicle here is a panoramic roof vehicle, large substantially rectangular openings 15 and 16 are provided in the base material 11 corresponding to the exposed portion of the glass roof 31 (see FIGS. 4 and 5) on the ceiling of the vehicle interior. It is provided. The opening 15 is an opening that exposes the glass roof 31 corresponding to the front seat of the vehicle, and the opening 16 is an opening that exposes the glass roof 31 corresponding to the rear seat. An opening 17 is provided in the base member 11 on the front side, and this opening is used for attaching a unit including a map lamp or the like to the roof panel. The reinforcing material 12 is arranged along the outer periphery of the openings 15 and 16 in order to prevent the strength of the ceiling interior member 10 from decreasing due to the provision of the openings 15 and 16. In the figure, the arrangement of the reinforcing material 12 with respect to the base material 11 is clearly shown by hatching the reinforcing material 12 with halftone dots.

A vanity lamp 20, which is a lighting member configured in a unit format, is embedded in and attached to the ceiling interior member 10 along the outer periphery of the opening 15 at a position on the front side of the opening 15. Although the reinforcing material 12 appears to be raised in part A in FIG. 1, this rise is due to the fact that the vanity lamp 20 is embedded in the ceiling interior member 10 from the vehicle interior side. 2 and 3 are diagrams showing the state in which the vanity lamp 20 is attached, and are enlarged perspective views of section A in FIG. 1. FIG. FIG. 2 shows a state in which the vanity lamp 20 is attached to a conventional ceiling interior member 10 for explanation, and FIG. 3 shows a state in which the vanity lamp 20 is attached in this embodiment. As shown in FIG. 2, the vanity lamp 20 is fitted into the base material 11 so that its back surface appears on the back side of the base material 11 and passes through the base material 11.

Attachment of the vanity lamp 20 to the ceiling interior member 10 will be explained using FIG. 2 showing a conventional technique. In order to fit the vanity lamp 20 into the base material 11 and securely fix it, it is not enough to simply press the vanity lamp against the base material 11 from the side facing the vehicle interior. It may be necessary to pull 20 in the snap-in direction. Therefore, a ring-shaped pulling part 21 is provided on the back side of the vanity lamp 20 so that the vanity lamp 20 can be pulled by hooking a finger thereon. A gap 22 is formed on the back surface of the vanity lamp 20, and light from the light source inside the vanity lamp 20 leaks to the outside through the gap 22, as shown by the broken line in the figure. Although the light leaking from the gap 22 is unintended light, a portion of this light travels toward the opening 15 while being reflected on the back surface of the ceiling interior member 10 and the glass roof 31. When the ceiling interior member 10 is actually attached to the vehicle, light leaking from the gap 22 of the vanity lamp 20 to the back side of the ceiling interior member 10 is transmitted to the ceiling interior member 10 at the end of the opening 15 of the ceiling interior member 10. This will leak into the vehicle interior through the gap between the glass roof 31 and the glass roof 31.

In order to prevent such unintended leakage of light, in the ceiling interior member 10 of this embodiment, as shown in FIG. partially covered. A light-shielding resin material is used for the reinforcing material 12, and the reinforcing material 12 is bonded to the base material 11 by hot melt adhesion or the like. By covering the back side of the vanity lamp 20 with the light-shielding reinforcing material 12, the gap 22 of the vanity lamp 20 is also covered with the light-shielding material, so that light does not leak from the vanity lamp 20 to its back side. As a result, unintended leakage of light at the end of the opening 15 of the ceiling interior member 10 can be prevented. In particular, in this embodiment, by blocking light with the reinforcing material 12 used to reinforce the ceiling interior member 10, light is blocked near the position where light leaks from the ceiling interior member 10 toward the vehicle interior, that is, near the edge of the opening 15. Since the light can be blocked at a position closer to the vanity lamp 20 than in the case where the light leaks from the vanity lamp 20, the leakage light can be blocked before it spreads in all directions, which is efficient. In addition to the openings 15 and 16 for the glass roof 31, the base material 11 of the ceiling interior member 10 is also provided with an opening for fitting the vanity lamp 20, and this opening also reduces the rigidity of the ceiling interior member 10. However, in this embodiment, the reinforcing material 12 is arranged so as to cover the back surface of the vanity lamp 20, so the periphery of the opening for fitting the vanity lamp 20 is also reinforced by the reinforcing material 12. Therefore, the rigidity of the ceiling interior member 10 can be ensured.

In order to block light leaking from the back side of the vanity lamp 20 without using the reinforcing material 12, it is also possible to integrate a light blocking member that covers the back side of the vanity lamp 20 with the unit of the vanity lamp 20 in advance. However, in this case, it is necessary to fit the vanity lamp 20 unit through the opening provided in the ceiling interior member 10, so the light shielding member cannot be made larger than the opening in the ceiling interior member 10. Therefore, such a light shielding member cannot cover the entire back surface of the vanity lamp 20 unit. On the other hand, according to the present embodiment, the separate reinforcing material 12 provided on the back side of the ceiling interior member 10 for reinforcing the ceiling interior member 10 is used as a light shielding member. The whole can be covered with a light shielding member.

The reinforcing material 12 may cover the entire back surface of the vanity lamp 20, but if the tensioning portion 21 is provided as described above for mounting the vanity lamp 20, the tensioning portion 21 may be reinforced for the installation work. It is difficult to cover with material 12. That is, when providing the tension part 21, it is preferable to cut out a part of the reinforcing material 12 so that the tension part 21 is exposed at the cut-out position. There is a risk that light may leak from the back surface of the vanity lamp 20 at the position where the reinforcing material 12 is cut out. In order to prevent such leaked light from leaking into the passenger compartment, as shown in FIG. A ridge-shaped or rib-shaped buffer material 25 can be provided on the surface of the reinforcing material 12 so as to block light directed toward the reinforcing material 12 . The cushioning material 25 is made of a light-shielding member, and is attached to the surface of the reinforcing material 12, for example, by adhesive. As shown in FIG. 5, which will be described later, the top surface of the cushioning material 25 is preferably in close contact with the surface of the glass roof 31. Further, from the viewpoint of increasing the degree of adhesion to the glass roof 31 and preventing abnormal noise due to vibration, the buffer material 25 is preferably formed of an elastic material. In the example shown in FIG. 3, at a position where the reinforcing material 12 is cut out to expose the tension portion 21, a U-shaped cushioning material 25 is provided so as to surround the cutout position. Note that the cutout portion provided in the reinforcing member 12 for the tension portion 21 of the vanity lamp 20 can also be used as an inspection hole for checking the fitting state of the vanity lamp 20 to the base material 11.

4 and 5 are sectional views showing the ceiling interior member 10 of this embodiment in a state where it is attached to a vehicle. FIG. 4 shows a cross section taken along the line IV-IV in FIG. 3 shows a cross section taken along line VV in FIG. In a vehicle, a glass roof 31 and a windshield 32 are fixed to a roof panel 34, and these are arranged continuously along the outer surface of the vehicle. A ceiling interior member 10 is attached closer to the vehicle interior than the glass roof 31 and the windshield 32 so as to cover the loop panel 34. A sun visor 33 is attached to the ceiling interior member 10. The sun visor 10 is of a foldable type, and a vanity lamp 20 is embedded in the ceiling interior member 10 at a position covered by the sun visor 10 when the sun visor 33 is folded down.

As shown in FIG. 4, the back side of the vanity lamp 20 is covered with a light-shielding reinforcing material 12, and no light leaks from the vanity lamp 20 to the back side. Even at the cutout position of the reinforcing member 12, a light-shielding buffer material 25 is provided on the surface of the reinforcing member 12 at the outer periphery of the cutout position, as shown in FIG. Since the reinforcing member 12 is in close contact with the surface of the glass roof 31, light is also prevented from leaking along the surface of the glass roof 31 toward the opening 15 from the cutout position of the reinforcing member 12. By providing the buffer material 25 in this manner, even when a portion of the reinforcing material 12 covering the back surface of the vanity lamp 20 is cut out, unintended light leakage can be prevented.

10 Ceiling interior member 11 Base material 12 Reinforcing material 15, 16, 17 Opening 20 Vanity lamp 21 Tension portion 22 Gap 25 Cushioning material 31 Glass roof 32 Windshield 33 Sun visor 34 Roof panel

Claims (5)

A ceiling interior member for a vehicle,
base material and
an opening formed in the base material;
a reinforcing material provided on the back surface of the base material along the outer periphery of the opening and reinforcing the ceiling interior member;
lighting components;
has
The reinforcing material is formed of a light-blocking material,
The lighting member is fitted into the base material such that the back surface of the lighting member appears on the back side of the base material and passes through the base material at a position close to the opening,
A ceiling interior member, wherein at least a portion of the back surface of the lighting member is covered with the reinforcing material. The ceiling interior member according to claim 1, wherein a part of the reinforcing material that covers the back surface of the lighting member is cut out, and a tension portion of the lighting member is exposed at a position where the reinforcing material is cut out. A buffer material is provided that surrounds at least a portion of the cutout position of the reinforcing material and blocks light directed from the cutout position toward the opening, and the buffer material is formed of an elastic material. Item 2 Ceiling interior parts. A lighting member mounting structure in which the lighting member is attached to a ceiling interior member arranged in a vehicle compartment,
The ceiling interior member includes a base material, an opening formed in the base material, and a reinforcing material provided on the back surface of the base material along the outer periphery of the opening to reinforce the ceiling interior member. ,
The lighting member is fitted into the base material such that the back surface of the lighting member appears on the back side of the base material and passes through the base material at a position close to the opening,
The reinforcing material is formed of a light-blocking material,
A mounting structure for a lighting member, wherein at least a portion of the back surface of the lighting member is covered with the reinforcing material. The vehicle has a glass roof;
A buffer is provided in which a portion of the reinforcing material covering the back surface of the lighting member is cut out, and the reinforcing material surrounds at least a portion of the cutout position to block light directed from the cutout position to the opening. 5. The lighting member mounting structure according to claim 4, wherein the cushioning material is formed of an elastic material, and the top surface of the cushioning material is in close contact with the surface of the glass roof.

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