JPH0623111U - Vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to prevent external light from leaking into the lamp through an engaging hole formed in the lamp body to improve the fixing strength of the lens, thereby deteriorating the appearance of the lamp. A lamp having an engaging hole 15 formed in the lamp body 1, a lance portion 42 provided in the lens 4, and the lance portion 42 engaged with the engaging hole 15 to improve the fixing strength between the lens and the lamp body. A lid piece 17 for covering the engagement hole 15 is provided, and the lid piece 17 prevents light from entering the lamp from the outside through the engagement hole 15 and prevents the light from becoming uneven due to light unevenness caused by the light leakage. Prevents deterioration of appearance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp in which a lance portion provided on a lens is engaged with an engagement hole provided in a lamp body to fix the lens.

[0002]

[Prior art]

 Generally, a vehicular lamp has a structure in which a lens is fixed to the front opening of a lamp body in which a light source such as a light bulb is arranged.However, in general, a concave groove is formed in the peripheral edge of the lamp body and the lens edge is A seal leg portion is provided in the section, the seal leg portion is inserted into the concave groove, and the lens is fixed to the lamp body by adhering the seal leg portion with the adhesive filling the concave groove. . In order to further increase the fixing strength, some lamps are provided with a lance part integrally with a part of the lens, and the lance part is engaged with an engaging hole provided in the lamp body. ing.

FIG. 6 is a partial cross-sectional view showing an example thereof, in which a recessed groove 13 is formed in the peripheral portion of the lamp body 1, and a plurality of rim portions 14 projecting outside the recessed groove 13 are provided. Engagement holes 15 are provided at the locations. In addition, a seal leg portion 41 that can be inserted into the concave groove 13 is integrally formed on the peripheral portion of the lens 4, and the seal leg portion 41 is inserted into the concave groove 13 and then the adhesive 5 such as hot melt is used to form the lamp body. It is fixed to 1. Further, lance portions 42 are integrally formed at a plurality of positions of the seal leg portion 41 of the lens, and the lance portions 42 are engaged with the engaging holes 15 of the lamp body to fix the lens 4 and the lamp body 1 to each other. It has increased strength. 2 is a light bulb and 6 is a socket.

[0004]

[Problems to be solved by the device]

 In such a vehicular lamp, as shown by an arrow in FIG. 6, outside light leaks into the inside of the lamp body 1 and the inside of the lens 4 through the engagement hole 15 provided in the lamp body, and the light is reflected by the lens 4. The light is totally reflected on the inner surface and reflected in the front direction of the lamp. Therefore, particularly when the lamp is not lit, the lens portion near the engagement hole 15 looks brighter than other portions, which causes a problem that the appearance of the lamp is deteriorated. An object of the present invention is to provide a vehicular lamp with improved appearance deterioration caused by engagement holes.

[0005]

[Means for Solving the Problems]

 According to the present invention, a lamp body provided with an engaging hole with which a lance portion provided on a lens is engaged is provided with a lid piece for covering the engaging hole, and the lid piece allows the lamp body to pass from the outside into the lamp through the engaging hole. The structure prevents the leakage of light.

[0006]

【Example】

 Next, the present invention will be described with reference to the drawings. FIG. 1 is a partially exploded perspective view of an embodiment in which the present invention is applied to a rear combination lamp of an automobile, FIG. 2 is a front view of an assembled state, and FIG. 3 is a vertical sectional view taken along the line AA. In these figures, a lamp body 1 is formed of a resin that does not transmit light into a horizontally long container shape, and the inside of the lamp body 1 is covered by a shade 11 with a tail and stop lamp portion 100, a turn signal lamp portion 200, and a backup lamp portion. The light bulb 2 is defined as 300, and a light bulb 2 as a light source is disposed and supported in each portion by a socket or the like (not shown). A back plate 12 is attached to the rear opening of the lamp body 1, and the inner surface of the lamp body 1 is coated with aluminum or the like as a reflecting mirror. Then, the inner lens 3 (31, 32) is attached to the front opening of a part of the lamp part of the lamp body 1 corresponding to each lamp part, and the entire front opening of the lamp body is closed on the front side. Thus, the outer lens 4 is fixed. The fixing structure of the outer lens 4 forms the concave groove 13 along the peripheral edge of the lamp body 1 and the front side end of the shade 11, while the sealing leg 41 is provided at the corresponding position on the inner surface of the lens 4. The seal leg portion 41 is inserted into the concave groove 13 and then the both are fixed by an adhesive 5 such as hot melt filled in the concave groove 13.

Further, as shown in FIG. 4 (a), a part of which is enlarged, and FIG. 4 (b) is a sectional view of the fixed state thereof, respectively, a sealing leg portion 41 provided on the peripheral edge of the outer lens 4 is shown. Triangular lance portions 42 are integrally formed at a plurality of locations on the outer side surface of the. Further, a rim portion 14 in which an outer portion of the concave groove 13 is slightly projected outward is integrally formed on the peripheral portion of the lamp body 1, and the lance portion 42 of the outer lens 4 is formed on the rim portion 14. The engagement hole 15 to be engaged is opened. A step portion 16 is formed outward on one side of the engagement hole 15, and the upper edge of the step portion 16 is configured as an engagement portion 16a. In addition, a lid piece 17 formed of a cantilevered small piece is formed on the lower edge of the step portion 16 so as to cover the engagement hole 15 from the outside so as to project toward the rear side of the lamp body. In this embodiment, engaging holes 15 and lid pieces 17 are provided at the upper and lower portions of the peripheral edge of the lamp body 1, and lance portions 42 are provided at the upper and lower portions of the outer lens 4 correspondingly. It is provided.

According to this configuration, after the adhesive groove 5 of the lamp body 1 is filled with the adhesive 5, the seal leg portion 41 of the outer lens 4 is inserted into the groove 13, so that the outer lens 4 is fixed. Stick to 1. At the same time, the lance portion 42 provided on the outer lens 4 is engaged with the engagement hole 15 of the lamp body 1 from the inside. As a result, the outer lens 4 is fixed to the lamp body 1 by the seal leg portion 41, the concave groove 13, and the adhesive 5, and the fixing strength is improved by the engagement between the lance portion 42 and the engagement hole 15. It At this time, as shown in FIGS. 3 and 4B, the outer side of the engagement hole 15 is covered by the lid piece 17, so that the lid piece 17 functions as a light-shielding plate, and the engaging hole 15 is engaged. External light is prevented from leaking into the interior of the lamp body 1 through the hole 15. Therefore, when the lamp is not lit, a part of the outer lens in the vicinity of the engagement hole 15 does not look bright, and deterioration of the appearance is prevented.

In this embodiment, by providing the step portion 16, the lid piece 17 can be protruded in the mold removing direction when the lamp body 1 is molded, and the lid piece 17 is the same as the lamp body molding. Sometimes it is possible to integrally form. In this case, as shown in FIG. 4 (b), the thickness of the outer piece 13a of the concave groove 13 provided in the lamp body 1 is slightly smaller than the thickness of other portions as shown by the broken line in the figure. By doing so, the amount of upward protrusion of the engaging portion 16a formed at the upper edge of the step portion 16 can be increased by that amount, and reliable engagement with the lance portion 42 is possible. Depending on the case, as shown in FIG. 5, a lid piece is formed by leaving a part of the rim portion 14 in which the engagement hole 15 is opened in a thin shape without providing a step portion on one side of the engagement hole 15. 17A may be formed, and the engagement hole 15 may be closed by the lid piece 17A. Of course, the lid piece may be formed separately from the lamp body, and this may be integrated with the lamp body by adhesion, welding, or the like. In addition, although the present invention is applied to the rear combination lamp in the above-described embodiment, the present invention can be applied to individual independent lamps as long as the lamp includes a lamp body and a lens.

[0010]

[Effect of device]

 As described above, according to the present invention, the lid piece is provided to cover the engagement hole with which the lance portion provided on the lens is engaged, and the lid piece prevents light from leaking from the outside into the lamp through the engagement hole. Since it is prevented, it is possible to prevent light unevenness when the lamp is not lit and prevent deterioration of the external appearance of the lamp.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view of an embodiment of a vehicular lamp of the present invention.

FIG. 2 is a front view of FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged perspective view with a part broken away and a cross-sectional view of a fixed state thereof.

FIG. 5 is a cross-sectional view showing a modified example of the lid piece.

FIG. 6 is a cross-sectional view illustrating a problem with a conventional lamp.

[Explanation of symbols]

 1 Lamp Body 3 Inner Lens 4 Outer Lens 13 Recessed Groove 15 Engagement Hole 17 Lid Piece 41 Seal Leg 42 Lance

Claims (1)

[Scope of utility model registration request] 1. A lamp body provided with a light source, and a lens fixed to a front opening of the lamp body, wherein a lance portion provided on the lens is engaged with an engagement hole provided on the lamp body. In the vehicular lamp, a lid piece that integrally covers the engagement hole is provided on the lamp body.