JP2617871B2 - Vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp, and more particularly to a structure for mounting the vehicular lamp on a vehicle body.

[0002]

2. Description of the Related Art A conventional vehicle lamp 90 of this type is used for a vehicle body 8
FIG. 2 shows an example of a configuration when the device is attached to a position 0.
The vehicle body 80 is provided with a vehicle body opening 81 which is larger than the outer shape of the lens 91 of the vehicle lamp 90. One of the vehicle lamps 90 has the surface of the lens 91 and the legs 91a.
The gasket receiving surface 92 is provided so as to be substantially parallel to the vehicle body 80 by providing a step.

On the gasket receiving surface 92, for example, a highly flexible gasket 93 made by foaming a rubber member with closed cells is used.
Is attached by adhering with an adhesive 94 or the like, and the gasket 91 is brought into contact with the back surface of the vehicle body 80 by exposing the lens 91 to the vehicle body opening 81 from the vehicle body rear surface side for waterproofing. At this time, for the purpose of compressing the gasket 93 to enhance the waterproof effect and for setting the mounting position of the lens 91 with respect to the vehicle body opening 81, a lamp mounting hole is provided at an appropriate position on the periphery of the vehicle body opening 81. A mounting hole 95 is provided on the side of the vehicle lamp 90.

A rim 83 is used for mounting the vehicle lamp 90, and a bolt 83a is provided on the rear surface of the rim 83.
3a is penetrated through the lamp mounting hole 82 and the mounting hole 95, and is tightened with a nut 84 from the back side.
0 is pressed toward the vehicle body 80 to compress the gasket 93.

At this time, the rim 83 also covers the gap formed between the lens 91 and the vehicle body opening 81, but at the same time, through the contact surface between the rim 83 and the vehicle body 80, the lamp mounting hole is formed. Since there is a possibility that water will enter the vehicle body from the inside of the rim 83, a plate-like gasket 8
5 is to be attached.

[0006]

However, in the above-described conventional structure, a step of attaching the gasket 93 to the gasket receiving surface 92 with an adhesive 94 (or an adhesive tape) is required. In addition, it is not easy to control the process for attaching such as uniform application, which makes the mounting process complicated, and when the application amount becomes non-uniform, the waterproof performance is immediately reduced. It also caused problems on the above.

Further, in order to mount the vehicle lamp 90, it is indispensable to use the rim 83 for setting the mounting position described above, and at the same time, since the rim 83 becomes an exterior part, painting and plating are finished. As such, aesthetics are required, and as a result, there arises a problem that the cost of the entire configuration is unavoidably increased, and it has been a problem to solve these problems.

[0008]

As a concrete means for solving the above-mentioned conventional problems, the present invention provides a lens having a shape facing an opening of a vehicle body from a rear surface of the vehicle body, the lens being substantially parallel to the vehicle body. A gasket receiving surface is provided, the gasket is sandwiched between the gasket receiving surface and the peripheral edge of the vehicle body opening, and in a vehicle lamp for waterproofing and positioning by pressing from the vehicle body rear direction applied to the vehicle lamp, In the vehicle lamp, a cross section is formed into a substantially L shape by a rising portion along a leg portion provided for fitting the lens to the vehicle body opening portion and a flat portion along the gasket receiving surface, and the flat portion is formed. Is attached to a protector by an elastic member integrally formed with the gasket, and the outer diameter of the rising portion of the protector is formed to be the same as or slightly larger than the opening of the vehicle body. Solves the problem by providing a vehicle lamp, characterized in that by a suitable pressing means from the vehicle body rear of the vehicle lamp waterproof positioning and is performed.

[0009]

Next, the present invention will be described in detail based on an embodiment shown in the drawings. 1 is a vehicular lamp, which is mounted from the rear side (vehicle inner surface) such that the lens 2 faces a vehicle body opening 11 provided in a vehicle body 10. It is the same as that of the conventional example.

Here, in the present invention, for example, rubber,
The protector 3 is made of an elastic member such as an elastomer. The protector 3 has a substantially L-shaped cross section. One side of the protector 3 is connected to the lens 2 and the body opening 11. The rising portion 3a is provided along the leg portion 2a provided to face it, and the other side is a flat portion 3b along the gasket receiving surface 4.

A gasket 5 is formed integrally with the flat portion 3b of the protector 3 by using, for example, foamed rubber made of closed cells.
That is, a plurality of waterproof ribs 3c having a triangular cross section are provided on the side in contact with the gasket receiving surface 4 so as to extend around the entire circumference of the flat portion 3b.

Further, the rising portion 3a of the protector 3 is formed so that the thickness t is adjusted so that the outer diameter is the same as or slightly larger than the inner diameter of the opening 11, and in addition, the rear surface of the rising portion 3a is formed. And the leg 2a of the lens 2 are provided with locking means such as unevenness as necessary.

On the other hand, a flange 11a is formed on the side of the vehicle body opening 11 of the vehicle body 10 so as to be bent inside the vehicle body 10. At this time, when the flange 11a is provided with an inclination for reasons such as matching with the design of the vehicle, the smallest opening area formed by the tip of the flange 11a is defined as the inner diameter of the vehicle body opening 11, The thickness t of the rising portion 3a of the protector 3 described above is also determined based on the inner diameter.

At an appropriate position such as near the vehicle body opening 11 on the vehicle body 10 side, instead of the lamp mounting hole described in the conventional example, for example, welding bolts are formed on the back side of the vehicle body 10 by welding or the like. 12 is provided, and the mounting hole 6 is also provided corresponding to the mounting bolt 12 on the vehicle lamp 1 side, and the gasket 5 is compressed from the back side by mounting with the nut 13 or the like. It is supposed to do.

Next, the operation and effect of the present invention having the above configuration will be described. First, by adopting the protector 3 having a substantially L-shaped cross section between the rising portion 3a and the flat portion 3b according to the present invention, if the protector 3 is attached to the leg 2a of the lens 2, The protector 3 is attached in a rubber band shape by the elasticity of the member formed at the rising portion 3a.

At this time, the flat portion 3 of the protector 3
Since gasket 5 is formed integrally with b,
Attachment of the protector 3 to the lens 2 completes attachment of the gasket 5 at the same time. In addition, no adhesive or adhesive tape is required for this attachment. It will be simplified.

When the vehicle lamp 1 is mounted on the vehicle body 10 in this state, the lens 2 is mounted on the protector 3 at the rising portion 3a.
Is attached to the outer periphery so as to face the vehicle body opening 11, and at this time, the inner diameter of the vehicle body opening 11 and the outer diameter of the rising portion 3a are substantially the same or the outer diameter of the rising portion 3a is slightly larger. Therefore, the lens 2 and the vehicle body opening 11 are fitted together without a gap, that is, the position of the lens 2 with respect to the vehicle body opening 11 is automatically set.

After that, if the nut 13 is tightened, the gasket 5 is compressed, and the waterproof effect between the vehicle body 10 and the flat portion 3b of the protector 3 is obtained. The waterproof rib 3c provided on the back side of 3b is also compressed, and the gasket receiving surface 4
And a waterproof action between the flat portion 3b and the
That is, the waterproof effect between the vehicle body 10 and the vehicular lamp 1 can be obtained.

Here, the protector 3 will be described again. Even if the protector 3 has been mounted with the vehicular lamp 1, the portion of the rising portion 3a can be viewed from the outside. Becomes Therefore, for example, there is a case where harmony with the coating color of the vehicle body 10 is required, and the present invention provides the adoption of the olefinic thermoplastic elastomer as the member forming the protector 3 in such a case.

That is, the olefinic thermoplastic elastomer has physical and mechanical characteristics that can replace a general-purpose rubber called SBR (styrene-butadiene rubber), NR (natural rubber), etc. Since the color is milky white, unlike the general-purpose rubber described above, the color can be freely changed by a pigment or the like to be added, and therefore, it is possible to easily harmonize with the paint color of the vehicle body 10 and the like. .

[0021]

As described above, according to the present invention, in the vehicular lamp, the rising portion along the leg portion of the lens and the flat portion along the gasket receiving surface have a substantially L-shaped cross section, and the flat portion is formed in the flat portion. A protector made of an elastic member integrally formed with a gasket is provided, and an outer diameter of the rising portion of the protector is formed to be the same as or slightly larger than the opening of the vehicle body. First, it is possible to attach the rubber band to the lens at the upright part of the protector, and at the same time, the protector is integrally formed with the protector. The gasket is also attached, eliminating the need for complicated processes such as pasting with an adhesive, improving production efficiency, and improving the waterproof performance by the integral molding described above. In which it exhibits an excellent effect of.

Second, by making the outer diameter of the rising portion of the protector substantially equal to the inner diameter of the opening of the vehicle body, the step of mounting the vehicle lighting device on the vehicle body allows the rising portion and the vehicle body to be mounted. Positioning is automatically performed with the opening, eliminating the need for a rim and a gasket attached to the rim required for positioning in the conventional example, and reducing the number of assembly steps and the number of parts. Therefore, it also has an excellent effect on cost reduction.

Further, since the above-mentioned rim is not required, a sense of unity between the vehicle body and the vehicular lamp is emphasized, and there is also a design effect. Further, the protector is made of an olefinic thermoplastic elastomer. By forming
The coloring can be freely performed, for example, it can be harmonized with the color of the vehicle body to further improve the effect on the design.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a vehicular lamp according to the present invention.

FIG. 2 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 ... Vehicle lamp 2 ... Lens 2a ... Leg part 3 ... Protector 3a ... Upright part 3b ... Flat part 3c ... Waterproof rib 4 ... Gasket receiving surface 5 ... Gasket 6 ... Installation Hole 10 Body 11 Body opening 11a Flange 12 Mounting bolt 13 Nut t

 ───────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 63-53840 (JP, U) Japanese Utility Model Sho 64-51543 (JP, U) Japanese Utility Model Sho 63-39053 (JP, U) Japanese Utility Model Sho 54- 38479 (JP, U)

Claims (3)

(57) [Claims] 1. A gasket receiving surface substantially parallel to the vehicle body is provided on the outer periphery of a lens having a shape facing the vehicle body opening from the vehicle body opening, and the gasket is formed by the gasket receiving surface and the peripheral edge of the vehicle body opening. A vehicular lamp that is pinched and waterproofed and positioned by pressing the vehicular backing from the rear of the vehicle and applied to the vehicular lamp, wherein the vehicular lamp is provided with legs provided for fitting the lens into the vehicle body opening. The riser along the portion and the flat portion along the gasket receiving surface have a substantially L-shaped cross section, and a protector is attached to the flat portion by an elastic member integrally formed with the gasket. The outer diameter is formed to be the same as or slightly larger than the opening of the vehicle body, and waterproofing and positioning can be performed by appropriate pressing means from the back of the vehicle body to the vehicle lamp. And vehicular lighting. 2. The vehicle according to claim 1, wherein a plurality of waterproof ribs having a triangular cross section are provided on the contact surface of the protector with the gasket receiving surface over the entire circumference. Lights. 3. The protector according to claim 1, wherein the protector is formed of an olefin-based thermoplastic elastomer.
Alternatively, the vehicle lighting device according to claim 2.