JP2013193642A - Vehicle combination lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a front combination lamp including lamp fittings for different functioning lamps, with a light leakage preventing means which can prevent light leakage from other adjacent lamp chambers without complicating a configuration.SOLUTION: A vehicle combination lamp includes a first light chamber 11, a second light chamber 12 and a third light chamber 13 arranged side by side. Between the second light chamber 12 and the third light chamber 13, a partition wall 60b is provided whose end face opposed to an outer cover 3 is a slope. From the slope, part of light which is reflected from the interface of an inner lens 4 to advance from the second light chamber 12 toward the third light chamber 13 is reflected to the side of the second light chamber 12. This prevents the light toward the slope from leaking to advance toward the third light chamber 13.

Description

  The present invention relates to a combination lamp in which a plurality of lamp units are provided in one lamp such as a front combination lamp and a rear combination lamp of a vehicle. In particular, the present invention relates to a vehicular lamp that improves visibility when a front combination lamp that is provided with a two-wheel headlamp unit and a position lamp unit is lit.

  In many cases, a vehicular lamp used as a headlamp mounted on the front part of a four-wheeled vehicle or a two-wheeled vehicle is configured as a so-called combination lamp by incorporating a plurality of lamps having different functions into one lamp body. For example, the front combination lamp houses a headlight unit that emits a traveling beam light distribution and a passing beam light distribution, and a turn signal lamp unit that is turned on when the route is changed, in a lamp housing. The rear combination lamp has a structure in which a stop lamp unit, a backup lamp unit that lights when retreating, and a position lamp unit are provided in the lamp housing.

In general, these combination lamps have a structure in which lamp chambers of different lamp units are formed in one lamp housing with a partition wall, and lamps of respective functions are configured in the partitioned lamp chamber. . The partition walls are formed in adjacent lamp units so that light emitted from other lamp functions does not leak (for example, Patent Document 1).
In the rear combination lamp of Patent Document 1, light leakage between the lamp chambers is prevented by fixing the partition shade with screws.

JP 2000-003606 A

  However, the rear combination lamp described in Patent Document 1 has a problem that the partition shade must be fixed with screws in order to prevent light leakage, which has a large number of parts, a complicated structure, and an increase in cost. .

  The present invention has been made in view of the above problems, and an object of the present invention is to provide light leakage prevention means that simplifies the structure and reduces the number of parts.

In order to achieve the above object, a vehicle combination lamp according to the present invention includes:
A lamp housing, an outer cover covering an opening of the lamp housing, and a plurality of lamp chambers in a space surrounded by the lamp housing and the outer cover,
The plurality of lamp chambers are arranged side by side with a first lamp chamber, a second lamp chamber adjacent to the first lamp chamber, and a third lamp chamber adjacent to the second lamp chamber,
The first lamp chamber includes a first light source and a first reflector that reflects light emitted from the first light source, and an end surface on the second lamp chamber side is located in the vicinity of the outer cover. ,
The second lamp chamber includes a second light source, and a second reflector that reflects light emitted from the second light source and opens on the outer cover side,
The third lamp chamber includes a third light source, and a third reflector that reflects light emitted from the third light source and opens on the outer cover side,
Between the second reflector and the outer surface of the outer cover that defines the second lamp chamber, the light emitted from the second light source is transmitted, and a part of the light is emitted from the second lamp chamber to the third lamp. There is provided a translucent member made of a light projecting resin that reflects toward the lamp chamber,
A partition wall having an end surface facing the outer cover is provided between the second lamp chamber and the third lamp chamber, and a third lamp is provided from an edge of the end surface on the second lamp chamber side. The edge on the chamber side is an inclined surface located on the outer cover side,
The inclined surface is a reflecting surface that reflects part of light reflected from the second lamp chamber toward the third lamp chamber toward the second lamp chamber by the translucent member incident on the inclined surface. It is characterized by that.

Further, the front partition, the second reflector, and the third reflector are formed integrally with the lamp housing.
Furthermore, the translucent member is an inner lens provided in the outer cover or in the vicinity of the outer cover.

  According to the first aspect of the present invention, the light leakage that the light emitted from the light source is reflected by the translucent member and enters the adjacent lamp chamber for irradiation is reduced without causing a significant increase in the number of components. be able to.

According to the invention of claim 2, since the partition wall is integrally formed, the number of parts can be further reduced, and the size and weight can be reduced.
According to the third aspect of the present invention, it is possible to provide a vehicle combination lamp in which light reflected by the inner lens or light reflected from the inner surface of the outer cover is prevented from leaking.

FIG. 1 is a front view showing a front combination lamp according to the present invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. 3 is an enlarged schematic cross-sectional view showing a portion B of FIG. FIG. 4 is a schematic enlarged sectional view showing a comparative example.

  Hereinafter, a front combination lamp provided in front of a motorcycle according to an embodiment of the present invention will be described with reference to FIGS.

1 to 3 show a front combination lamp according to the present invention, and FIG. 1 is a front view. 2 is a cross-sectional view on one side along the line AA in FIG. 1, and FIG. 3 is an enlarged schematic cross-sectional view showing a portion B in FIG.
In the following description and drawings, the vehicle traveling direction when attached to the front portion of the vehicle will be described as a reference. The road surface side is expressed as a downward direction.

  A front combination lamp 1 for a two-wheeled vehicle is attached to the center of the front end of the vehicle, for example. When provided at the center of the front end of the vehicle, as shown in FIG. 1, a headlamp unit 51 that irradiates the front of the motorcycle, a position lamp unit 52 that indicates the position of the end of the vehicle, and a turn signal lamp that indicates the traveling direction of the vehicle Units 53 are arranged on both sides of the headlamp unit 51. The lamp units 51, 52 and 53 having different functions are arranged in a space surrounded by the lamp housing 2 and the outer cover 3 covering the front opening of the lamp housing 2.

  The lamp housing 2 is integrally formed of a thermoplastic resin such as PPS and has a shape opening toward the front. A seal groove 2a having a U-shaped cross section is formed at the peripheral edge opening toward the front, and a seal leg 3a provided around the outer cover 3 is bonded via a seal material 8 filled in the seal groove 2a. And can be fixed. Moreover, aluminum vapor deposition is given to a part of the inner surface of the lamp housing 2 to form a reflector. In the present embodiment, a second reflector 32 and a third reflector 33, which will be described later, form a reflector using the inner surface of the lamp housing 2. Reference numeral 7 in FIG. 1 is a vehicle body fixing leg for attaching the front combination lamp 1 to the vehicle body, and reference numeral 90 in FIG. 2 is a vehicle body body to which the front combination lamp is attached.

  The outer cover 3 is formed of a translucent resin material, such as polycarbonate or acrylic, and covers the front opening of the lamp housing 2 as shown in FIGS. 1 and 2, and the center portion of the front combination lamp 1 bulges forward. A convex outer surface, an inner surface, and seal legs 3a provided on the periphery are provided.

  In the space surrounded by the lamp housing 2 and the outer cover 3, three lamp chambers 11, 12, and 13 are formed corresponding to the headlamp unit 51, the position lamp unit 52 and the turn signal lamp unit 53. Yes. A partition wall 60 erected from the lamp housing 2 side toward the outer cover 3 side and an outer cover between any one of the three lamp chambers 11, 12, 13 and another adjacent lamp chamber. An extension 6 provided in the vicinity of the inner surface of 3 is provided.

  The first lamp chamber 11 is a lamp chamber of the headlamp unit 51. The headlamp unit 51 includes a headlamp light source 21 including a halogen bulb, a discharge lamp bulb, an incandescent bulb, and the like provided in the horizontal center of the front combination lamp, and a headlamp that reflects light emitted from the headlamp light source 21. The lamp reflector 31 is used. The headlamp reflector 31 is a reflector provided on the side of the headlight light source 21 with a spheroidal surface having a headlight light source 21 as a focal position or a composite reflecting surface based on a spheroidal surface. Molded compound) formed of resin material. The peripheral portion 31a of the headlamp reflector 31 is located in front of the position unit and in the vicinity of the outer cover 3 as shown in FIGS. Almost the entire surface of the outer cover 3 corresponding to the first lamp chamber 11 is made transparent, and a lens cut is formed in part to form the light distribution of the headlamp unit 51.

  The second lamp chamber 12 serves as a lamp chamber for the position lamp unit 52. The position lamp unit 52 is provided on each of the left and right sides of the headlamp unit 51 as shown in FIG. In the second lamp chamber 12, a position lamp light source 22 that is a light source of the position lamp unit 52, a position reflector 32 that reflects light emitted from the position lamp light source 22, and an inner provided near the inner side of the outer cover 3. A lens 4 is provided. The position reflector 32 is shared with the lamp housing 2 and is formed by integral molding with a light source mounting hole provided at the center of the reflector 32. An aluminum vapor deposition film is formed on the inner surface side. The position lamp light source 22 is located around the reflector 32, that is, at a position defining the second lamp chamber 12 such as between the first lamp chamber 11 and the third lamp chamber 13 from the periphery of the reflector 32 toward the front. A partition wall 60 substantially parallel to the optical axis is formed.

  The light source 22 has an incandescent bulb or the like fixed to the light source mounting hole, and the inner lens 4 is positioned in front of the light source 22 on the optical axis. The light source 22 is not limited to an incandescent bulb, but may be an LED (light emitting diode) or the like, or may be provided at a place other than the light source mounting hole. The position reflector 32 is provided at a position where approximately 1/3 of the area of the position reflector 32 becomes a shadow of the headlamp reflector 31 as shown in FIG. 2 when the front combination lamp 1 is observed from the front. By providing in this way, the horizontal dimension of the combination lamp 1 can be reduced.

  The position lamp reflector 32 is a reflector having a spheroidal reflection surface on the light source 22 side with the position lamp light source 22 as a focal position, and is formed integrally with the lamp housing 2. The partition wall 60 is also formed integrally with the lamp housing 2 and the position lamp reflector 32. The tip of the partition wall 60 a between the first lamp chamber and the second lamp chamber is located in the vicinity of the back surface of the headlamp reflector 31. The tip of the partition wall 60b between the second lamp chamber and the third lamp chamber is located behind the tip of the partition wall 60a between the first lamp chamber and the second lamp chamber, and is more than the light source 22. The leading edge is located in front.

  FIG. 3 is an enlarged view of the front end of the partition wall 60b between the second lamp chamber and the third lamp chamber, and is an enlarged view of the portion B in FIG. The partition wall 60b between the second lamp chamber and the third lamp chamber has a double structure of the second lamp chamber side partition wall 60b1 and the third lamp chamber side partition wall 60b2, and the third lamp chamber side The partition wall 60b2 is formed to be located behind the second lamp chamber side partition wall 60b1. Moreover, the inclined surface 61 is formed in the front-end | tip part of the 3rd lamp chamber side partition 60b2 like FIG. The inclined surface 61 will be described later. Further, the extension 6b between the second lamp chamber and the third lamp chamber is provided such that a part thereof is a standing wall-like partition wall extending rearward, and a rear end portion thereof faces the inclined surface 61. It has been. The extension 6 a is disposed between the first lamp chamber 11 and the second lamp chamber 12.

  The inner lens 4 is formed of the same transparent resin material as that of the outer cover 3, and a lens cut for providing a plurality of refractive lens elements is formed on the front surface. The inner lens 4 is fixed to an extension 6 b between the outer cover 3 and the third lamp chamber 13. Further, as shown in FIG. 2, the outer side of the position lamp light source 22 is fixed so as to be inclined rearward. Almost the entire surface of the outer cover 3 corresponding to the second lamp chamber 12 is transparent. A lens cut may be formed in a part of the outer cover 3 to control the light distribution of the position lamp 52.

  The third lamp chamber 13 is a lamp chamber of the turn signal lamp unit 53. The turn signal lamp unit 53 is disposed outside each position lamp unit 52. The third lamp chamber 13 includes a turn signal lamp light source 23 such as an incandescent bulb and a turn signal lamp reflector 33 that reflects light emitted from the turn signal lamp light source 23. The turn signal lamp reflector 33 is formed integrally with the lamp housing 2 and has a reflecting surface provided with an aluminum vapor deposition film on the inner surface thereof. An inner lens 4 c is provided near the inner surface of the outer cover 3.

  Next, the inclined surface 61 of the partition wall 60b between the second lamp chamber and the third lamp chamber will be described with reference to FIGS. FIG. 4 is a cross-sectional view of a comparative example. FIG. 4 is for explaining the case where the inclined surface 61 is not provided on the same partition wall 60b as in FIG. 3. The same reference numerals are given to the same places as in FIG.

  The inclined surface 61 is formed in the front-end | tip part of the 3rd lamp chamber side partition 60b2, as shown in FIG. A part L1 of the light emitted from the position lamp light source 22 of the second lamp chamber 12 goes to the front outer cover 3 (see FIG. 2). At this time, a part of the light incident on the inner lens 4 is reflected at the incident interface and the outgoing interface due to the difference in refractive index between the atmosphere (air) and the inner lens member. Similarly, part of the light is reflected at the interface between the outer cover 3 and the atmosphere. A part of the reflected light L2 travels toward the tip of the third lamp chamber side partition wall 60b2 (see FIGS. 2 and 3). The light L2 reflected at the interface between the inner lens and / or the outer cover is reflected at the tip. At this time, in the present embodiment, as shown in FIG. 3, the inclined surface 61 reflects the light incident on the second lamp chamber side, more preferably toward the central axis direction of the second lamp chamber than the incident light on the inclined surface 61. Becomes the light L3.

  On the other hand, as shown in FIG. 4, when the shape of the distal end portion of the third lamp chamber side partition wall 60b2 is a rectangular sectional distal end shape that does not form the inclined surface 61, it is reflected at the interface between the inner lens and / or the outer cover. The transmitted light L2 is reflected at the tip, but becomes the light L4 reflected toward the third lamp chamber 13 side. The light beam L4 is emitted to the outside of the front combination lamp 1 through the outer cover 3 in the region of the third lamp chamber 13, and the reflected light L4 is observed.

  That is, when the inclined surface 61 is not formed, the tip of the third lamp chamber side partition wall 60b2 appears to be shining, which is not preferable in appearance, and the lamp unit of the third lamp chamber is slightly lit. Is misleading. However, by providing the inclined surface 61, such a problem is solved, and the problem that the tip portion looks shining does not occur.

  The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. For example, the partition wall 60b between the second lamp chamber and the third lamp chamber may be a single partition wall without having a double structure. Further, the front combination lamp has been described, but the present invention can also be applied to a rear combination lamp. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

  The present invention can be applied to a combination lamp provided in front of or behind the vehicle.

1 Front combination lamp 2 Lamp housing 3 Outer cover 4 Inner lens (reflective member)
5 Bulkhead 6 Extension 10 Lamp chamber 11 First lamp chamber 12 Second lamp chamber 13 Third lamp chamber 21 Headlamp light source (first light source)
22 Position lamp light source (second light source)
23 Turn signal lamp light source (third light source)
31 Headlight reflector (first reflector)
32 position lamp lamp reflector (second reflector)
33 Turn signal lamp reflector (third reflector)
40 Inclined surface 50 Body body

Claims (3)

A lamp housing, an outer cover covering an opening of the lamp housing, and a plurality of lamp chambers in a space surrounded by the lamp housing and the outer cover,
The plurality of lamp chambers are arranged side by side with a first lamp chamber, a second lamp chamber adjacent to the first lamp chamber, and a third lamp chamber adjacent to the second lamp chamber,
The first lamp chamber includes a first light source and a first reflector that reflects light emitted from the first light source, and an end surface on the second lamp chamber side is located in the vicinity of the outer cover. ,
The second lamp chamber includes a second light source, and a second reflector that reflects light emitted from the second light source and opens on the outer cover side,
The third lamp chamber includes a third light source, and a third reflector that reflects light emitted from the third light source and opens on the outer cover side,
Between the second reflector and the outer surface of the outer cover that defines the second lamp chamber, the light emitted from the second light source is transmitted, and a part of the light is emitted from the second lamp chamber to the third lamp. There is provided a translucent member made of a light projecting resin that reflects toward the lamp chamber,
A partition wall having an end surface facing the outer cover is provided between the second lamp chamber and the third lamp chamber, and a third lamp is provided from an edge of the end surface on the second lamp chamber side. The edge on the chamber side is an inclined surface located on the outer cover side,
The inclined surface is a reflecting surface that reflects part of light reflected from the second lamp chamber toward the third lamp chamber toward the second lamp chamber by the translucent member incident on the inclined surface. The combination lamp for vehicles characterized by this.   The vehicle combination lamp according to claim 1, wherein the front partition, the second reflector, and the third reflector are formed integrally with the lamp housing.   The vehicle combination lamp according to claim 1 or 2, wherein the translucent member is an inner lens provided in the outer cover or in the vicinity of the outer cover.

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