JPS6121764Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vehicular lamp, and particularly to a vehicular lamp suitable for use as a rear combination lamp.

As illustrated in FIG. 1, a conventional vehicle lamp of this kind has a housing a made of synthetic resin with a lens b disposed in the front opening thereof, and a back cover c disposed in the rear opening of the housing a. ing. The back cover c is made of a synthetic resin having a heat resistance temperature higher than that of the housing a, and has lamps d, such as taillights or stop lights, located above and below it.
and a lamp e that serves as a turn signal light. Then, a metal heat shield plate f is fixed to the inside of the upper wall of the housing a with adhesive, and when the temperature rises above the inside of the housing a,
The heat shield plate f prevents the housing a from being thermally deformed. g is a lamp room partition member.

By the way, since a conventional vehicle lamp has a plurality of lamps d and e installed in upper and lower positions, a temperature rise occurs inside the lamp when the lamp is turned on.
The temperature above is quite high (approximately 118℃)
The heat resistance temperature of housing a (approximately 85
Therefore, a heat shield plate f is used to prevent the housing a from being thermally deformed. However, the use of the heat shield f increases the number of parts, which not only increases the number of assembly steps but also requires time and effort to manage parts.

Further, in order to solve this problem, it is easily possible to mold the housing a from the same material as the back cover c, but doing so has the drawback of high cost.

In view of the problems of the prior art described above, the present invention aims to provide a vehicle light that can reduce the number of parts by providing the back cover with the function of a heat shield plate, thereby reducing the number of assembly steps. It is something.

An example of implementing the present invention will be described below with reference to FIGS. 2 to 6. 2 to 6 show an embodiment in which the vehicle lamp according to the present invention is applied to a rear combination lamp.

The vehicle lamp of the present invention includes a housing 1, a lens 2 disposed in the front opening of the housing 1,
The housing includes a back cover 3 disposed at the rear opening of the housing 1, a plurality of lamps 4 disposed above and below the back cover 3, and a lamp room partition member 5 mounted on the back cover 3 and the lens 2. .

The housing 1 is made of ABS resin or AAS resin, and has a cylindrical shape with its front and back surfaces open. The lens 2 has leg portions 2a protruding around its periphery fixed to the mounting groove 1a of the housing 1 with an adhesive 6. This lens 2 is
In the illustrated embodiment, it is formed into three parts, and the protrusions 2b formed at the joints of both parts are dovetail-fitted into each other.

The back cover 3 is molded from a synthetic resin having a heat resistance temperature higher than that of the housing 1, such as polypropylene resin. This back cover 3 is arranged with respect to the rear opening of the housing 1, with a peripheral edge 31 formed around the back cover supporting the engaging portion 1b at the rear end of the housing 1. The peripheral edge portion 31 includes a wall portion 31a that protrudes toward the front around the back cover 3 and includes an upper portion, a lower portion, and both side portions, and a support protrusion 31b that protrudes toward the outside side of the wall portion 31a. It has

The lamp 4 is attached to the socket 7 and screwed to a boss portion 32 protruding from the inner wall of the back cover 3 via a socket holder 8. This lamp 4 is located at the top of the back cover 3,
and an upper lamp 41 serving as a tail light or brake light, for example.
and lower lamps 42 and 43 located at the lower part of the back cover and serving as, for example, direction indicator lights. The lamp chamber partitioning member 5 is adapted to partition the lamp 4 by fitting into the projection 2b of the lens 2 and a partitioning groove 33 formed at a position corresponding to the projection 2b of the back cover 3. In addition, in FIGS. 3 and 5, reference numeral 35 denotes a rotation stopper projection that prevents the socket holder 8 from rotating.

Therefore, in the present invention, at least at a position above the upper lamp 41 of the bag cover 3,
A heat shielding portion 34 that shields the housing 1 from heat is integrally formed. That is, as shown in FIG. 4, the heat shielding portion 34 is integrally formed at the edge of the upper wall portion 31a near the upper lamp 41 toward the front, and is heat shielded from the upper wall of the housing 1. It is becoming possible to do so. Therefore, the heat shield part 34
may be formed over the entire upper wall portion 31a.

In the vehicle lamp of the present invention, as described above, the back cover 3 is made of a synthetic resin material that has a higher heat resistance than the housing, and the heat shield part located above the lamp is formed integrally with this. Even if the temperature rises due to heat generation and exceeds the allowable temperature of the housing, the highly heat-resistant heat shield 34 blocks the temperature and prevents the housing 1 from being thermally deformed. Since the housing is formed integrally with the housing, the cost can be significantly reduced compared to a case where the housing is molded from synthetic resin, which is a material with a high heat resistance.

As a result, the number of parts can be reduced compared to the conventional one in which a heat shield plate is used separately, so the number of assembly steps can be reduced and parts management becomes easier. Further, in the illustrated embodiment, the heat shield part 34 is formed integrally with the upper peripheral wall part 31a of the back cover, and the upper lamp 4
Since it is provided only in the vicinity of No. 1, the amount of material used can be kept to a minimum. Moreover, since the heat shield part 34 can be molded by only changing a part of the conventional mold structure, it is possible to use the conventional mold, and the mold structure can be easily improved. You can also do it.

As described above, the present invention is a vehicle light that uses a housing made of synthetic resin that has a low heat resistance temperature, but it also reduces assembly man-hours and facilitates parts management. There are advantages.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the configuration of a conventional vehicle lamp, FIG. 2 is a front view showing an embodiment of the vehicle lamp according to the present invention applied to a rear combination lamp, and FIG. - line sectional view of figure 4
The figures are an enlarged sectional view taken along the line - - in Fig. 2, Fig. 5 is a partially enlarged view of Fig. 3, and Fig. 6 is a perspective view showing the back cover. 1... Housing, 2... Lens, 3... Back cover, 41... Upper lamp, 42, 43...
Lower lamp, 34...heat shield part.

Claims (1)

[Scope of utility model registration request] A housing made of synthetic resin, a lens disposed in the front opening of the housing, a back cover made of synthetic resin, a plurality of lamps disposed above and below the back cover, and a light chamber mounted on the back cover and lens. The back cover is molded from a synthetic resin material having a higher heat resistance temperature than the housing, and the housing includes a heat shielding part located at least above the upper lamp and shielding heat from the upper wall of the housing. A vehicle lamp characterized in that it is formed integrally with.