JP2010146905A - Lighting fixture for vehicle - Google Patents

Abstract

An object of the present invention is to provide a vehicular lamp that can prevent the lens surface from being damaged even when the flexible lens is bent and deformed.
SOLUTION: A plurality of lamp chambers 40 in which a light source 30 is accommodated, light shielding walls 42 and 44 for partitioning the plurality of lamp chambers 40, and provided so as to close the plurality of lamp chambers 40, and the light shielding walls 42 and 44, A flexible lens 50 having a protruding portion 56 protruding in a direction intersecting the lens surface 58 on the opposite lens surface 58 and the light shielding walls 42 and 44 are provided, and the protruding portion 56 is pressed in the thickness direction. It is set as the vehicle lamp 20 provided with the press part 46 to perform.
[Selection] Figure 4

Description

  The present invention relates to a vehicular lamp such as a rear combination lamp.

Conventionally, in a vehicular lamp having a multicolor lens such as a rear combination lamp, a configuration in which a light shielding rib that partitions a plurality of lamp chambers is provided at a position facing a boundary portion between different lamp functional colors of the multicolor lens is conventionally known. It is known (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 6-11204

  However, when the multicolor lens is a flexible lens formed by vacuum forming a film-like sheet member, for example, when the flexible lens is bent and deformed, the lens surface interferes with the light shielding rib. As a result, scratches and the like are generated on the lens surface.

  Therefore, in view of the above circumstances, an object of the present invention is to obtain a vehicular lamp that can prevent the lens surface from being damaged even if the flexible lens is bent and deformed.

  In order to achieve the above object, a vehicular lamp according to claim 1 of the present invention includes a plurality of lamp chambers in which a light source is accommodated, a light shielding wall that partitions the plurality of lamp chambers, and the plurality of lamps. A flexible lens having a lens surface facing the light shielding wall and a projecting portion projecting in a direction intersecting with the lens surface; and the light shielding wall. And a pressing portion that presses the portion in the thickness direction.

  According to the first aspect of the present invention, even if the flexible lens excluding the projecting portion tries to bend and deform, the pressing portion provided on the light shielding wall maintains the pressing contact with the projecting portion. The lens surface of the lens does not interfere with the light shielding wall. Therefore, the lens surface of the flexible lens can be prevented from being damaged.

  According to a second aspect of the present invention, there is provided the vehicular lamp according to the first aspect, wherein the projecting portion projects toward the back side of the flexible lens, and the pressing portion projects the projecting portion. It is characterized by having a rib sandwiched from the outside in the thickness direction.

  According to the second aspect of the present invention, even if the flexible lens excluding the projecting portion tries to bend and deform, the rib provided on the light shielding wall holds the projecting portion from the outside in the thickness direction, and the projecting portion Since the pressing contact is maintained, the lens surface of the flexible lens does not interfere with the light shielding wall. Therefore, the lens surface of the flexible lens can be prevented from being damaged.

  According to a third aspect of the present invention, there is provided the vehicular lamp according to the first aspect, wherein the protruding portion protrudes toward the surface of the flexible lens, and the pressing portion is a space in the protruding portion. And a rib that is inserted so as to spread the opposing wall surface in the projecting portion.

  According to the third aspect of the present invention, even if the flexible lens excluding the projecting portion tries to bend and deform, the rib provided on the light shielding wall is inserted into the space in the projecting portion, and the opposing wall surface is pushed. Since it is spread and the pressing contact with the protruding portion is maintained, the lens surface of the flexible lens does not interfere with the light shielding wall. Therefore, the lens surface of the flexible lens can be prevented from being damaged. In this case, since the light shielding wall is inserted into the space in the protruding portion, the thickness of the light shielding wall is small, and the dummy region (dummy dimension) that is a region where no light is emitted can be reduced.

  As described above, according to the present invention, it is possible to provide a vehicular lamp that can prevent the lens surface from being damaged even when the flexible lens is bent and deformed.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the present invention will be described below in detail based on the embodiments shown in the drawings. First, the first embodiment will be described. FIG. 1 is a schematic perspective view showing the rear side of the vehicle body of the vehicle, and FIG. 2 is a schematic side sectional view showing a vehicular lamp (rear combination lamp 20) according to the present embodiment. FIG. 3 is a schematic front view showing the flexible lens (multicolor lens 50) of the first embodiment.

  FIG. 4 is a schematic sectional side view showing the protruding portion of the flexible lens (multicolor lens 50) of the first embodiment and the pressing portion of the light shielding wall, and FIG. 5 is the flexible lens of the first embodiment. It is a schematic front view which shows the protrusion part of the (multicolor lens 50), and the press part of a light-shielding wall. In each drawing, an arrow UP appropriately indicates the vehicle body upward direction, and an arrow FR indicates the vehicle body front direction.

  As shown in FIG. 1, a rear bumper 14 is disposed in the vehicle width direction at the vehicle body rear side end portion of the vehicle 10. A pair of left and right rear combination lamps 20 as an example of a vehicular lamp is disposed on the vehicle body upper side of the rear bumper 14 and at both ends in the vehicle width direction. In the rear combination lamp 20, a tail lamp (brake lamp) 22, a backup lamp 24, and a rear turn signal lamp 26 are juxtaposed in the vertical direction of the vehicle body (see FIG. 2).

  In addition, as shown in FIG. 2, the tail lamp 22, the backup lamp 24, and the rear turn signal lamp 26 are provided in their lamp housings 32, 34, and 36 with a light source (for example, a bulb or LED (light emitting diode)) 30 and the like. A concave mirror-like reflector (not shown), which is a reflecting plate that reflects diffused light from the light source 30 and reflects light emitted from a headlamp of a rear vehicle, is accommodated.

  A plurality of support protrusions 38 are provided on the rear surfaces of the lamp housings 32, 34, 36 that are open so as to be able to irradiate light from the light source 30, and each of the support protrusions 38 corresponds to the rear end panel 16 of the vehicle body 12. Are supported by a plurality of support members 18 fixed to each other. As a result, the lamp housings 32, 34, 36 are fixed to the vehicle body 12.

  A socket (back cover) 28 for mounting the light source 30 is attached to a substantially central position of each lamp housing 32, 34, 36. The socket 28 has an electrode projecting toward the front of the vehicle body, which is the back side of each lamp housing 32, 34, 36, and electrical wiring (not shown) is connected to the electrode so that the light source 30 can be energized. It is said that.

  Further, the upper end portion of the opening portion 34A of the lamp housing 34 located in the middle and the lower end portion of the opening portion 32A of the lamp housing 32 located on the upper side are integrally connected, and the opening portion 34A of the lamp housing 34 located in the middle portion. The lower end portion of the lamp housing 36 and the upper end portion of the opening 36A of the lamp housing 36 located on the lower side are integrally connected to each other, and light shielding walls 42 and 44 for partitioning the lamp chambers 40 are formed by the respective connecting portions. It is like that.

  Also, resin multicolor lenses as flexible lenses that close the openings 32A, 34A, 36A of the lamp housings 32, 34, 36 and form the lamp chamber 40 for each of the lamp housings 32, 34, 36. 50 is provided as a single unit. The multicolor lens 50 emits light emitted from the light source 30 and reflected by a reflector (not shown) and is color-coded into lamp function colors for each lamp chamber 40.

  That is, as shown in FIG. 4, the multicolor lens 50 is a translucent (or transparent) film-like sheet in which lamp functional colors (red R and yellow Y in this embodiment) are printed at predetermined positions on the back surface. The member 52 is formed by vacuum forming. For example, as shown in FIG. 3, the upper tail lamp 22 is made red R, the central backup lamp 24 is made translucent color (clear color) S, and the lower The rear turn signal lamp 26 on the side is yellow (amber) Y.

  The boundary portions (parting portions) 54 between the different lamp function colors (between the red R portion and the semi-transparent color S portion and between the translucent color S portion and the yellow Y portion) face the light shielding walls 42 and 44, respectively. It is said that. Further, as shown in FIG. 4, a projecting portion 56 projecting a predetermined length in a direction intersecting with the direction along the lens surface 58 is integrally formed on the back surface side of each boundary portion 54 of the multicolor lens 50. ing.

  That is, the projecting portion 56 is formed by vacuum forming the portion corresponding to each boundary portion 54 of the film-like sheet member 52 by folding it to the back surface side. And the front-end | tip part (vehicle body front side edge part) of each protrusion part 56 is a press part provided in the front-end | tip part (vehicle body rear side edge part) of each light shielding wall 42 and 44, as shown in FIG. 4, FIG. The plurality of ribs 46 are respectively press-fitted (inserted).

  That is, ribs 46 having a substantially semicircular cross section facing each other in the vertical direction of the vehicle body are provided at the front end portions of the respective light shielding walls 42 and 44 along the protruding portions 56 (in the vehicle width direction) at a predetermined interval. A plurality of ribs 46 are formed (for example, at equal intervals), and the interval W in the vertical direction of the vehicle body of each rib 46 is less than the thickness E of the protrusion 56 (W <E). Therefore, the protrusion 56 is press-fitted between the upper and lower ribs 46, and is thereby sandwiched (pressed) from the outside in the thickness direction of the protrusion 56, that is, from the vehicle body upper side and the vehicle body lower side. ing.

  In addition, even when the film-like sheet member 52 expands unevenly during the vacuum forming, the protruding portion 56 causes uneven displacement (variation) in the direction along the lens surface 58 of each boundary portion 54. In the multicolor lens 50, the positions of the boundary portions 54 of the red R portion and the semi-transparent color S portion, and the semi-transparent color S portion and the yellow Y portion are made constant (no variation). Like).

  Further, the plate thickness D (see FIG. 4) of the thus formed multicolor lens 50 is set to D = 0.3 mm to 1.0 mm, for example. Here, the lower limit of the plate thickness D is set to 0.3 mm, and it is difficult to manufacture the multicolor lens 50 having the plate thickness D of less than 0.3 mm, and the upper limit of the plate thickness D is set to 1.0 mm. This is because if the plate thickness D is larger than 1.0 mm, it is difficult to form the multicolor lens 50 by vacuum forming the film-like sheet member 52. That is, by setting the plate thickness D to 0.3 mm to 1.0 mm, the multicolor lens 50 can be easily molded by vacuum molding.

  Next, the operation of the rear combination lamp (vehicle lamp) 20 configured as described above will be described. The multicolor lens 50 according to the present embodiment is formed by vacuum forming a translucent film-like sheet member 52 in which predetermined portions are printed in red R and yellow Y. And in this multicolor lens 50, the part corresponding to each boundary part 54 of the red R site | part and the translucent color S site | part and the translucent color S site | part and the yellow Y site | part of the film-like sheet member 52 is each folded in the back surface side. The protrusion 56 is formed by vacuum forming as described above.

  On the other hand, light shielding walls 42 and 44 for partitioning each lamp chamber 40 are arranged at positions facing the respective boundary portions 54 (each projecting portion 56) of the multicolor lens 50, and at the front end portions thereof in the vertical direction of the vehicle body. The ribs 46 that face each other and have an interval W in the vertical direction of the vehicle body that is less than the thickness E of the protruding portion 56 are spaced along the protruding portion 56 (in the vehicle width direction) at a predetermined interval (equally spaced). ) A plurality are formed. Therefore, when the multicolor lens 50 is joined to the lamp housings 32, 34, 36 so as to block the lamp chambers 40, the protrusions 56 are press-fitted between the ribs 46.

  As a result, even if the multicolor lens 50 excluding the projecting portion 56 tries to bend and deform, the ribs 46 provided on the light shielding walls 42 and 44 cause the projecting portion 56 to move from the outside in the thickness direction, that is, on the vehicle body upper side and the vehicle body lower side. Since the pressing contact state is maintained by pinching (pressing) from the side, the lens surface 58 of the multicolor lens 50 does not interfere with the light shielding walls 42 and 44. Therefore, scratches and the like do not occur on the lens surface 58 of the multicolor lens 50. That is, it is possible to prevent the lens surface 58 of the multicolor lens 50 from being damaged by the light shielding walls 42 and 44.

  Moreover, according to the configuration according to the present embodiment, it is possible to suppress the vibration of the multicolor lens 50. That is, since the multicolor lens 50 formed by vacuum-forming the film-like sheet member 52 has low rigidity, there is a possibility that it will vibrate and generate abnormal noise when exposed to rainwater or the like. By pressing and holding the protrusions 56 formed integrally with the ribs 46 provided on the light shielding walls 42 and 44, vibration of the multicolor lens 50 can be suppressed, and generation of abnormal noise can be suppressed. be able to.

  Even if a buffer member (not shown) is separately provided at the tip of the light shielding walls 42 and 44, and the boundary member 54 of the multicolor lens 50 is pressed from the back side with the buffer member, vibration is suppressed. However, in this configuration, when the multicolor lens 50 is bent and deformed, the lens surface 58 of the multicolor lens 50 may slide relative to the buffer member. May occur. Further, since the buffer member can be seen from the outside through the lens, it does not look good, and there is a problem that the number of parts increases by the amount of the buffer member.

  However, in the configuration according to the present embodiment, even if the multicolor lens 50 is bent and deformed, the lens surface 58 of the multicolor lens 50 does not slide relative to the light shielding walls 42 and 44 ( The ribs 46 are integrally formed at the tip portions of the respective light shielding walls 42 and 44, and are not separately attached like the above-described buffer members, so that the number of parts and the manufacturing cost increase. There is no problem to be seen, and since it is difficult to see from the outside, there is no worry of impairing the appearance.

  Next, a second embodiment will be described. In addition, the same code | symbol is attached | subjected to the site | part equivalent to the said 1st Example, and detailed description (a common effect | action is also included) is abbreviate | omitted suitably. FIG. 6 is a schematic sectional side view showing the protruding portion of the flexible lens (multicolor lens 60) and the pressing portion of the light shielding wall of the second embodiment, and FIG. It is a schematic front view which shows the protrusion part of the color lens 60), and the press part of a light-shielding wall.

  As shown in FIGS. 6 and 7, the multicolor lens 60 of the second embodiment has a substantially “U” shape on the surface side, as opposed to the multicolor lens 50 of the first embodiment. A protruding portion 66 is formed. That is, this multicolor lens 60 is also formed by vacuum forming a translucent film-like sheet member 62 in which a predetermined portion is printed in red R and yellow Y, as described above. Each boundary portion 64 between the color S region and the semi-transparent color S region and the yellow Y region is integrally formed with a protruding portion 66 that protrudes so as to be folded toward the surface side.

  Further, in this second embodiment, the openings 32A, 34A of the lamp housings 32, 34 and the openings 34A, 36A of the lamp housings 34, 36 are respectively connected together, or the openings of the lamp housings 32, 34 are integrated. A light shielding wall 48 is configured by either one of 32A and 34A and one of the openings 34A and 36A of the lamp housings 34 and 36.

  Then, ribs 46 as pressing portions are provided on the upper surface and the lower surface of the front end portion (vehicle body rear side end portion) of each light shielding wall 48 along the respective protruding portions 66 (in the vehicle width direction) at a predetermined interval. A plurality of (for example, equidistant) are formed, and the front end portion of the light-shielding wall 48 having the plurality of ribs 46 is inserted (press-fitted) into the internal space of the projecting portion 66, and the projecting portion 66 faces. The wall surfaces 66A and 66B are pushed and spread.

  That is, the rib 46 is formed in a substantially semicircular cross section, and the thickness T of the light shielding wall 48 including each rib 46 is formed to be thicker than the height H on the inner surface (back surface) side of the protruding portion 66. (H <T). Therefore, the front end portion of the light shielding wall 48 is press-fitted into the internal space from the back surface side of the projecting portion 66, whereby the wall surfaces 66A and 66B facing the projecting portion 66 are directed upward and downward in the vehicle body. , Each is to be pressed.

  Therefore, even if the multicolor lens 60 excluding the protruding portion 66 tries to bend and deform, the ribs 46 provided on the light shielding wall 48 spread the wall surfaces 66A and 66B facing the protruding portion 66 (in the vehicle body upward direction and Since the pressing contact state is maintained by pressing the vehicle body downward, the lens surface 68 of the multicolor lens 60 does not interfere with the light shielding wall 48. Therefore, scratches and the like do not occur on the lens surface 68 of the multicolor lens 60. That is, it is possible to prevent the lens surface 68 of the multicolor lens 60 from being damaged by the light shielding wall 48.

  In the case of the second embodiment, since the light shielding wall 48 is press-fitted (inserted) into the internal space of the protrusion 66, the thickness thereof is the same as that of the light shielding walls 42, 44 of the first embodiment. It is smaller than the thickness. Accordingly, dummy regions (dummy dimensions) that are regions that do not emit light can be reduced (decreased) compared to the first embodiment, and the light emission area can be increased, so that the multicolor lens 60 itself can be reduced ( (Compact) is possible. Therefore, the rear combination lamp 20 with good luminous efficiency can be obtained, and the rear combination lamp 20 itself can be reduced in weight and simplified.

  Further, the protrusion 66 absorbs a non-uniform position shift (variation) in the direction along the lens surface 68 of the boundary portion 64 even when the film-like sheet member 62 extends non-uniformly during vacuum forming. In the multicolor lens 60, the positions of the boundary portions 64 of the red R region and the semi-transparent color S region and the translucent color S region and the yellow Y region are made constant (so as not to vary). It has become. In the second embodiment, it is needless to say that the vibration of the polychromatic lens 60 can be suppressed and the occurrence of abnormal noise can be suppressed, as in the first embodiment.

  As mentioned above, although the case where the vehicle lamp which concerns on this embodiment was applied to the rear combination lamp 20 was demonstrated, the vehicle lamp which concerns on this embodiment is not limited to each Example of illustration, The design can be changed as appropriate without departing from the scope of the invention. For example, as shown in FIGS. 5 and 7, the ribs 46 in each embodiment are formed at the same position in the vertical direction, but may be formed at different positions in the vertical direction. Further, the vehicular lamp according to the present embodiment can also be applied to other vehicular lamps including a fog lamp or the like disposed in the vehicle 10.

Schematic perspective view showing the rear side of the vehicle body Schematic side sectional view showing a vehicular lamp (rear combination lamp) Schematic front view showing a flexible lens (multicolor lens) of the first embodiment Schematic side sectional view showing the protrusion of the flexible lens (multicolor lens) of the first embodiment and the pressing part of the light shielding wall The schematic front view which shows the protrusion part of the flexible lens (multicolor lens) of 1st Example, and the press part of a light-shielding wall Schematic side sectional view showing the protruding part of the flexible lens (multicolor lens) and the pressing part of the light shielding wall of the second embodiment The schematic front view which shows the protrusion part of the flexible lens (multicolor lens) of 2nd Example, and the press part of a light-shielding wall.

Explanation of symbols

10 Vehicle 20 Rear combination lamp (vehicle lamp)
22 Tail lamp 24 Backup lamp 26 Rear turn signal lamp 30 Light source 32 Lamp housing 34 Lamp housing 36 Lamp housing 40 Lamp chamber 42 Light-shielding wall 44 Light-shielding wall 46 Rib (pressing part)
48 Light-shielding wall 50 Multicolor lens (flexible lens)
52 Sheet member 54 Boundary part 56 Projection part 58 Lens surface 60 Multicolor lens (flexible lens)
62 Sheet member 64 Boundary part 66 Projection part 66A Wall surface 66B Wall surface 68 Lens surface

Claims (3)

A plurality of lamp rooms containing light sources;
A light shielding wall for partitioning the plurality of lamp chambers;
A flexible lens provided so as to close the plurality of lamp chambers, and having a protruding portion that protrudes in a direction intersecting the lens surface on a lens surface facing the light shielding wall;
A pressing portion provided on the light shielding wall and pressing the protruding portion in the thickness direction;
A vehicular lamp characterized by comprising: The protrusion protrudes toward the back side of the flexible lens;
The vehicular lamp according to claim 1, wherein the pressing portion includes a rib that sandwiches the protruding portion from the outside in the thickness direction. The protrusion protrudes toward the surface of the flexible lens;
2. The vehicular lamp according to claim 1, wherein the pressing portion includes a rib that is inserted into a space in the projecting portion so as to expand an opposing wall surface in the projecting portion.

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