JP3077519B2 - Multi-light room lamps for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of types of lamps in which a plurality of reflectors and a plurality of light source bulbs are installed in a space surrounded by one lamp housing and one lens. The present invention relates to a multi-light room-type vehicular lamp configured to fulfill the function of a vehicle.

[0002]

2. Description of the Related Art FIG. 3 shows that two reflectors and two light source bulbs are arranged in a space surrounded by one lamp housing and one outer lens to function as two lamps. FIG. 6 is a horizontal cross-sectional view schematically illustrating a conventional example of a vehicle lighting device configured to fulfill the requirements. In the left half of this conventional example, a reflector 3a for functioning as a lamp A, a light source bulb 4a, and an inner lens 5a are arranged, and a reflector for functioning as a lamp B in the right half. 3b, a light source bulb 4b, and an inner lens 5b are arranged. The lamp A and the lamp B function independently of each other, and the light source bulb 4a and the light source bulb 4b are independently flashed.

[0003]

In the conventional multi-lamp-type lamp shown in FIG. 3 described above, each of the two light source bulbs serving as heat sources is independently turned on and off. There is a problem that a temperature gradient is generated in a substantially closed space through which air can flow, and fine water droplets are generated on the lens surface, so that the lens is fogged. In order to prevent the above-mentioned fogging, it is conceivable to obstruct the air flow. FIG. 4 is a plan view showing an example of a trial plan in which a partition is provided between a lamp housing and a lens in order to prevent lens fogging in a multi-lamp-type lamp, and is cut and drawn on a horizontal plane. Figure 4
The outer lens 7 of the (prototype) is formed integrally with a ridge-shaped partition rib 7a protruding toward the inner surface of the lens.
Closely adhered to. Reference numerals 8a and 8b denote inner panels provided mainly for adjusting the appearance of the lamp. 9
Is a shade for blocking direct light emitted from the light source bulb 4a toward the front of the lamp. According to the proposal shown in FIG. 4, since the large partition rib 7a must be integrally formed with the outer lens 7, the molding is difficult, and it cannot be put to practical use on an industrial profitable basis. Further, it is difficult to bring the partition rib 7a formed integrally with the outer lens 7 into close contact with the lamp housing 6, so that the assembling workability is poor, the airtightness tends to be insufficient, and the effect of preventing fogging is not perfect. The present invention has been made in view of the above circumstances, and (a) it is not necessary to provide a large partition rib on the inner surface of the lens, and there is no difficulty in molding the lens. It is an object of the present invention to provide a vehicular lamp of a multi-light room type that can be easily assembled, and has good airtightness for preventing the flow of internal air and a complete fogging prevention effect.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above objects (good assemblability and sealing performance), a multi-light room type vehicle lamp according to the present invention comprises one lamp housing and one lens. And a plurality of reflectors and a plurality of light source bulbs are arranged in a space surrounded by the above, and the two-light room type vehicle lamp is positioned so as to partition between two adjacent reflectors. The partition member is disposed, and the partition member is formed by fitting a frame-shaped elastomer around a plate-shaped member, and a part of the outer periphery of the frame-shaped elastomer is in close contact with the lamp housing, Another part of the outer periphery of the frame-shaped elastomer is in close contact with the lens.

[0005]

According to the above-mentioned means, since the frame-like elastomer is fitted around the plate, the elastomer can be attached to the plate without bonding the elastomer, the cost of manufacturing the partition member is low, and the above-mentioned partition member is inexpensive. Since the elastomer comes into close contact with the lens and the lamp housing, the airtightness of the partition function is good, and therefore, the prevention of fogging of the lens is complete. Further, since the elastomer can be elastically deformed, even if there is a molding error in the lamp housing or the lens, the error is absorbed by the deformation of the elastomer, so that the assembling work is easy. In addition, since the partition member is interposed between the lens and the lamp housing, there is no need to provide a large partition rib on the inner surface of the lens, so that there is no particular difficulty in molding the lens.

[0006]

Next, referring to FIGS. 1 and 2 sequentially,
An embodiment of the present invention will be described. FIG. 1 shows an embodiment of a multi-light room type vehicle lighting device according to the present invention, in which two adjacent reflectors among a plurality of reflectors provided in a space surrounded by a lamp housing and a lens. It is the top view which cut and drawn the component which divides between by a horizontal surface. An elastomer frame 12b is fitted around the plate 12a. In this embodiment, a partition member (details will be described later) is formed by integrally molding a frame-shaped elastomer around the synthetic resin plate 12a by applying the insert molding technique. FIG. 2 is an arrow view of the multi-light room type vehicle lamp according to the embodiment shown in FIG. As shown in FIG. 2, an elastomer frame 12b is fitted around the plate 12a to form a shade 12 as a partition member. The reflector 3a "shown in FIG. 2 is supported by a ball joint (not shown) so as to be tiltable with respect to the lamp housing 10, and the screw mounting 13 is rotatably fitted thereto. This is a component for adjusting the optical axis direction of the reflector 3a ″.

As shown in FIG. 1, the outer lens 1
A relatively small partition rib 11a is formed on the inner surface of the first member 1 and is in contact with and tightly attached to the elastomer frame 12b.
Since the plate 12a is interposed between the partition rib 11a and the lamp housing 10, the height H of the partition rib 11a is smaller than the distance D between the outer lens 11 and the lamp housing. It is much shorter. Therefore, there is no particular difficulty in forming the outer lens 11. The lamp housing 10 is provided with the partition rib 11a.
A pair of ridges 10a, 10b is formed at a position facing the, and supports the elastomer frame 12b by sandwiching it. Reference numerals 8a and 8b denote inner panels similar to or similar to those in FIG. 4 (conventional example). As shown in FIG. 2, the portion where the outer lens 11 faces the lamp housing 10 forms a tapered portion 11 b that expands toward the lamp housing 10, and the elastomer frame 12 b also has the same shape. Correspondingly, it has a contour that is tapered. With such a configuration, the outer lens 11 and the elastomer frame 12b are brought into close contact with each other due to the contact between the slopes, and the airtightness is further improved, so that the anti-fog function is ensured.

[0008]

According to the present invention, since the frame-like elastomer is fitted around the plate, the elastomer can be attached to the plate without bonding the elastomer, and the manufacturing cost of the partition member is low. Since the elastomer of the partition member is in close contact with the lens and the lamp housing, airtightness of the partition function is good, and therefore, prevention of fogging of the lens is complete. Further, since the elastomer can be elastically deformed, even if there is a molding error in the lamp housing or the lens, the error is absorbed by the deformation of the elastomer, so that the assembling work is easy. In addition, since a partition member is interposed between the lens and the lamp housing, there is no need to provide a large partition rib on the inner surface of the lens, so that an excellent practical effect that molding of the lens does not involve any particular difficulty is achieved. Play.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a multi-light room vehicle lighting device according to the present invention, in which two adjacent reflectors are provided among a plurality of reflectors provided in a space surrounded by a lamp housing and a lens. It is the top view which cut and drawn the component which partitions off between reflectors with a horizontal surface.

FIG. 2 is an arrow view of the multi-light room type vehicle lamp according to the embodiment shown in FIG.

FIG. 3 shows a configuration in which two reflectors and two light source bulbs are arranged in a space surrounded by one lamp housing and one outer lens so as to function as two lamps. Shows a conventional example of a car lamp,
FIG. 3 is a schematic horizontal sectional view.

FIG. 4 is a plan view showing an example of a prototype in which a partition is provided between a lamp housing and a lens in order to prevent fogging of a lens in a lamp of a multi-light room, and is cut and drawn on a horizontal surface.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lamp housing, 2 ... Outer lens, 3a, 3b
... Reflector, 3a ", 3b" ... Reflector in the embodiment of the present invention, 4a, 4b ... Light source bulb, 5a, 5b ...
Inner lens, 5a ", 5b" ... Inner lens in the embodiment of the present invention, 6 ... Lamp housing, 7 ... Outer lens, 7a ... Partition rib, 8a, 8b ... Inner panel, 9
... Shade, 10 ... Lamp housing in the embodiment of the present invention, 10a, 10b ... Protrusion, 11 ... Outer lens in the embodiment of the present invention, 11a ... Partition rib, 12 ... Shade as partition member, 12a ... Plate, 12b ... Elastomer frame, 13 ... screw mounting, 14 ...
Adjustment screw.

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F21S 8/10

Claims (1)

(57) [Claims] 1. A multi-light room-type vehicular lamp in which a plurality of reflectors and a plurality of light source bulbs are arranged in a space surrounded by one lamp housing and one lens. A partition member is disposed so as to partition between two adjacent reflectors, and the partition member is formed by fitting a frame-like elastomer around a plate-like member. A multi-light room-type vehicular lamp, wherein a part of the outer periphery of the frame-shaped elastomer is in close contact with the lamp housing, and another part of the outer periphery of the frame-shaped elastomer is in close contact with the lens.