JPH0617021U - Vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a vehicular lamp in which the mechanical strength of a rim portion provided in the peripheral portion of a lens is increased and the appearance of the rim portion is not deteriorated. A vehicle lamp including a lamp body 1 and a lens 2 fixed to a front opening of the lamp body,
The lens 2 has a rim portion 22 for covering a part of the peripheral edge of the lamp body 1, and a body rim portion 13 is integrally formed on the peripheral edge of the lamp body 1 along the rim portion 22,
In addition, the body rim portion 13 is provided with an escape hole 14 for allowing the solvent to escape. As a result, the strength can be improved by the body rim portion 13 without providing ribs on the rim portion 22, and the appearance deterioration due to the ribs can be prevented.

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 rim portion is provided on a part of a peripheral edge of a lens in order to improve appearance.

[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, when this type of lamp is mounted on a vehicle, a part of the lamp body, especially It is necessary to prevent the appearance of the peripheral part from being exposed and the appearance being deteriorated. For this reason, in the past, a rim portion was formed integrally with the peripheral edge of the lens to the outside corresponding to the exposed portion, and the exposed peripheral edge of the lamp body was covered with this rim portion, and the appearance was reduced. Attempts have been made to prevent this.

Further, in the lamp having the rim portion provided on the lens as described above, an external force is easily applied to the rim portion when mounted on a vehicle, so that it is necessary to increase the mechanical strength of the rim portion. . Therefore, conventionally, it has been proposed that ribs are provided at a plurality of locations on the rim portion. FIG. 8 is a diagram showing its outline. 1 is a lamp body, 2 is a lens, and a rim portion 22 is provided on an upper edge of the lens 2, and the rim portion 22 covers the upper edge portion of the lamp body 1. ing. Ribs 25 projecting perpendicularly to the back surface are integrally provided at a plurality of positions on the back surface of the rim portion 22 in the longitudinal direction, and the ribs 25 prevent deformation and cracking of the rim portion 22. The mechanical strength is improved.

[0004]

[Problems to be solved by the device]

 In such a vehicular lamp, the ribs 25 provided on the rim portion 22 of the lens are arranged so as to be separated from each other in the length direction of the rim portion, so that the strength of the rim portion between the ribs tends to be low, and in this portion. Easy to crack and deform. Further, since the rib 25 can be seen through from the front side of the rim portion 22, this portion causes a discomfort in appearance with respect to the entire front surface of the lens, and on the contrary, the appearance of the lamp is likely to be deteriorated. . An object of the present invention is to provide a vehicular lamp in which the mechanical strength of the rim portion of the lens is improved without reducing the appearance.

[0005]

[Means for Solving the Problems]

 According to the present invention, a body rim portion is integrally formed on the peripheral portion of the lamp body along the rim portion of the lens, and an escape hole for letting the solvent escape is formed in this body rim portion.

[0006]

【Example】

 Next, the present invention will be described with reference to the drawings. 2 is a front view of an embodiment in which the present invention is applied to a rear combination lamp of an automobile, FIG. 1 is a partially cutaway enlarged plan view thereof, and FIGS. 3 (a) and 3 (b) are lines AA of FIG. 2, respectively. , BB is an enlarged vertical sectional view. In these drawings, a lamp body 1 is formed in a horizontally long container shape, and inside thereof, a tail & stop lamp section 100, a turn signal lamp section 200, and a back-up lamp section 300 are defined, and a light source is provided in each section. The light bulb 3 is supported by the socket 4. Further, in the tail & stop lamp section 100 and the back-up lamp section 300, the inner surface of the lamp body 1 is coated with aluminum or the like as the reflecting mirror 11, and the turn signal lamp section 200 has an elliptic spherical reflector 10 which will be described in detail later. Will be decorated. An inner lens 5 is attached to a required lamp portion at the front opening of the lamp body 1, and a lens (outer lens) 2 is fixed to the outer side of the inner lens 5. When the lens 2 is fixed, the concave groove 12 is formed along the peripheral edge of the lamp body 1 and the boundary between the lamps, while the seal leg 21 is provided at the corresponding position on the inner surface of the lens 2. Then, a structure is adopted in which the seal leg portion 21 is inserted into the concave groove 12 and then the both are fixed by an adhesive 6 such as hot melt filled in the concave groove 12.

Then, as shown in a partially enlarged perspective view of FIG. 4, a peripheral portion of the lamp body 1 which may be exposed when the rear combination lamp is mounted on an automobile, in this case, the tail & stop. At the upper edge of the lens 2 corresponding to the upper edges of the lamp section 100 and the backup lamp section 300, a rim section 22 is formed in which the middle section of the lens is projected forward and the upper edge is curved slightly toward the back side. Is formed so as to integrally project upward, and the rim portion 22 is formed so as to cover the above-mentioned upper edge portion of the lamp body 1. Further, here, the upper edge portion of the lamp body 1 is formed to project outward so as to correspond to the rim portion 22, and the body rim portion 13 curved along the back surface of the rim portion 22 is integrated with the lamp body 1. Is formed. The body rim portion 13 is fixed to the rim portion 22 with machine screws 7 by utilizing thick portions 23 provided at a plurality of positions of the rim portion 22. In addition, at a plurality of positions in the length direction of the body rim portion 13, as will be described later, escape holes 14 for allowing the solvent to escape are formed so as to penetrate in the thickness direction.

According to this structure, after the adhesive 6 is filled in the concave groove 12 of the lamp body 1, the seal leg portion 21 of the lens 2 is inserted into the concave groove 12, so that the lens 2 is fixed to the lamp body 1. Stick to it. In this case, some of the screws may be used to fix the lens to the lamp body to increase the fixing strength. When the lens 2 is fixed to the lamp body 1, the body rim portion 13 provided on the lamp body 1 is closely attached to the entire area of the back surface of the rim portion 22 of the lens 2 as shown in FIG. Contacted. As a result, the rim portion 22 is supported by the body rim portion 13 on the back side, and the mechanical strength of the rim portion 22 is improved. Further, in this case, since the rim portion 22 is not provided with ribs and the body rim portion 13 is provided along the entire surface of the rim portion 22, light is partially refracted as when the ribs are provided. Alternatively, the rim portion 22 is not reflected and the appearance of the rim portion 22 is not deteriorated.

Further, here, since the solvent escape holes 14 are formed in the body rim portion 13 at a plurality of places, the solvent generated when the adhesive 6 filled in the concave groove 12 is cured. The escape hole 14 can be quickly released to the outside. Therefore, the solvent stays in the minute gap formed between the contact surfaces of the rim portion 22 and the body rim portion 13 due to the capillary phenomenon, and the staying solvent causes a partial difference in the light refraction and light reflection of the rim portion 22. Therefore, the appearance is not deteriorated.

Here, as shown in FIG. 4, the relief hole 14 is formed in a trapezoidal shape in which the width dimension of the lower side is larger than that of the upper side. By reducing the width of the upper side in this way, the reduction of the substantial length of the outer side of the body rim portion 13 due to the escape hole 14 is made smaller than that of the inner side, and the outside of the body rim portion where external force is easily affected is reduced. It is possible to suppress the decrease in strength on the side. From this point of view, the shape of the escape hole may be a triangular escape hole 14A as shown in FIG. 5 (a), or a circular escape hole 14B as shown in FIG. 5 (b), and further as shown in FIG. 5 (c). A semicircular relief hole 14C can be adopted. Alternatively, as shown in (d), the body rim portion may be formed as a relief hole 14D formed in a mesh shape with a fine mesh size. In any case, it is essential that the escape hole is formed as small as possible so that the appearance of the rim portion 22 is not deteriorated by the escape hole.

In addition, in this embodiment, as shown in a partially enlarged view in FIG. 6, a rim portion 22 is formed by bending the rim portion 22 toward the back side, and a protruding edge portion 24 slightly protruding outward. Are integrally formed. By providing this projecting edge portion 24, for example, as shown by an arrow in the same figure, an attempt is made to penetrate into the trunk room along the rim portion 22 from the lower side of the leading edge of the trunk lid 8 put on the rear combination lamp. Moisture can also be blocked by the ridge 24 to prevent its ingress.

Further, as shown in FIG. 7 which is a sectional view taken along line CC of FIG. 2, the reflector 10 provided in the turn signal lamp portion 200 is formed in an elliptical spherical shape, and its first focus F1. Is located at the filament center of the light bulb 3, and the second focal point F2 is located at an intermediate position between the filament center and the glass. In this way, the light emitted from the filament is emitted from the first focal point F1, so that it is reflected by the reflector 10 and then condensed at the second focal point F2, and then diffused. become. Therefore, it is possible to obtain light efficiency substantially equivalent to that when light is emitted from the light bulb 3, while the reflected light of the reflector is the same as when the light bulb filament is placed at the center of the reflector having a spherical shape. It is possible to avoid the problem that the filaments are re-focused on the filament and the filament is overheated and burned out. In addition, although the present invention is applied to the rear combination lamp in the above-described embodiments, the present invention can be applied to individual lamps independently as long as the lamp includes a lamp body and a lens.

[0013]

[Effect of device]

 As described above, according to the present invention, since the body rim portion is integrally provided on the peripheral portion of the lamp body along the rim portion of the lens, the mechanical strength of the rim portion can be reinforced by the body rim portion, and the rim portion can be reinforced. It is possible to improve the appearance by eliminating the need for ribs. Also, by providing a solvent escape hole in the body rim, it is possible to prevent the solvent from staying between the rim and the body rim, and to prevent the appearance from being degraded due to this stay. There is also an effect that can be done.

[Brief description of drawings]

FIG. 1 is an enlarged plan view showing an embodiment of a vehicular lamp of the present invention with a part of FIG. 2 cut away.

FIG. 2 is a front view of an embodiment of the vehicular lamp of the present invention.

3 is an enlarged vertical cross-sectional view taken along line AA and line BB of FIG.

FIG. 4 is an enlarged perspective view of a part of a rim portion and a body rim portion.

FIG. 5 is a view showing various shapes of escape holes.

FIG. 6 is a diagram showing details of a rim portion and its function.

FIG. 7 is an enlarged cross-sectional view taken along the line CC of FIG.

FIG. 8 is a schematic configuration diagram of a rim portion in a conventional lamp.

[Explanation of symbols]

 1 Lamp body 2 Lens (outer lens) 3 Light bulb 7 Machine screw 10 Reflector 13 Body rim part 14 Relief hole 22 Rim part

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 rim portion covering a peripheral portion of the lamp body is formed on at least one side of the lens. In the vehicle lamp described above, a body rim portion is integrally formed along the rim portion of the lens at a peripheral portion of the lamp body, and an escape hole for letting out a solvent is formed in the body rim portion. A vehicle lighting fixture.