JP4421961B2 - Interior lighting - Google Patents

Description

  The present invention relates to an indoor lamp, and more particularly to an indoor lamp that can be mounted in a car.

  2. Description of the Related Art Conventionally, as an example of an indoor lighting lamp, one in which a locking portion of a bracket is locked in a locking hole provided in a roof bow is known (for example, see Patent Document 1).

As shown in FIG. 4, the indoor illumination lamp 50 disclosed in Patent Document 1 has a flange-like portion 55 of a lamp housing 54 in which a bulb 53 is arranged at the center of a lens 52 when the lamp body 51 is attached to a molded ceiling 71. Is inserted into the lamp mounting hole 57 until the locking portion 60 of the bracket 59 is press-fitted into the locking hole 58 and inserted into the engaging hole 72 of the molded ceiling 71. The bracket 59 is attached with the clip portion 61 protruding upward. Thereby, the lamp body 51 is prevented from coming off from the molded ceiling 71, and the lamp body 51 is attached to the molded ceiling 71.
Japanese Utility Model Publication No. 06-065093 (7th to 9th pages, FIG. 1)

  However, in Patent Document 1, since the bulb 53 is arranged in the central portion in the design portion constituted by the lens 52 and the lamp housing 54, the bulb 53 is directly seen through the lens 52 when the bulb 53 is turned on. It will make you feel dazzling. Further, the peripheral portion becomes darker than the portion of the lens 52 close to the bulb 53, which is not preferable in terms of design.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an interior lamp that is excellent in design by eliminating glare and making the entire lens emit light uniformly.

1) An interior illumination lamp according to the present invention includes a design portion including a housing fixed to an opening provided in an interior material of a vehicle body and a lens assembled to the housing, a functional portion including a light source, and the functional portion. And an interior lighting unit in which the interior member is sandwiched and fixed by the case and the housing, wherein the light source of the functional unit is the opening of the interior member. A reflecting layer is formed on the inner surface of the case, and the lens is disposed perpendicularly to the lens body to receive light from the light source and to enter from the light incident surface. And a prism portion that refracts the polarized light and polarizes the light toward the room .

According to the invention described in 1) above, the light source of the functional unit is disposed outside the opening. Accordingly, the light source cannot be directly seen through the lens, so that no glare is felt. In addition, since the difference in illuminance is eliminated between the portion near the light source of the lens and the portion far from the light source, and the lens can be irradiated with uniform light, the design can be improved. Furthermore, since the light from the light source is reflected by the reflective layer on the inner surface of the case and travels toward the lens, stable irradiation can be performed on the lens. Further, according to the present invention, since the light from the light source is refracted through the prism portion and travels indoors, the light from the light source is dispersed or concentrated by the prism portion to produce the light to be irradiated into the room. Can

2) The interior illumination lamp according to the present invention is characterized in that in the interior illumination lamp described in 1) above, the prism portion is integrally formed on the upper portion of the lens body .

According to the invention described in 2) above, the lens main body and the prism portion are integrated .

3 ) The interior illuminating lamp according to the present invention is characterized in that in the interior illuminating lamp described in 1) and 2 ) , a coating treatment layer is formed on an outer surface of an inclined surface constituting the prism portion .

According to the invention described in 3 ) above, the dust existing on the back surface side of the interior material accumulates on the coating treatment layer, so that the dust disappears on the optical path of the light source and the unevenness of the luminous intensity is eliminated. In addition, since the dust cannot be seen from the room, the appearance can be improved. Here, examples of the coating layer include printing, vapor deposition, film-in-mold, and coating.

  According to the interior illumination lamp of the present invention, it is possible to solve the problem of being dazzled or being unfavorable in design because the peripheral part is darkened, thereby eliminating dazzling and uniform illumination by irradiating the entire lens. The effect that it can be born is obtained.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  Hereinafter, a plurality of exemplary embodiments according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a first embodiment of an indoor lamp according to the present invention, FIG. 2 is a longitudinal sectional view of the indoor lamp shown in FIG. 1, and FIG. 3 is a second embodiment of the indoor lamp according to the present invention. FIG.

(First embodiment)
As shown in FIG. 1, the interior illumination lamp 10 according to the first embodiment of the present invention includes a design portion 11 including a housing 12 and a lens 13, a functional portion 14 including a light source 15, and a case 16. It is configured.

  The housing 12 is a wall-like member for attaching the indoor lamp 10 to a molded ceiling 40 (shown in FIG. 2) that is an interior material, and an optical path opening 17 is formed in the center portion, Two locking projections 18 that are locked to the front portion of the case 16 and two locking projections 19 that are locked to the side portion of the case 16 are formed so as to face each other.

  The lens 13 is made of a transparent or translucent resin, and a pair of locking portions 20 formed in the longitudinal direction are fitted into the optical path opening 17 of the housing 12, so that the lens 13 is integrated with the housing 12. Assembled.

  The functional unit 14 includes a functional unit main body 21, and a wire harness 45 is electrically connected to a plurality of press contact terminals (not shown) arranged in the functional unit main body 21. A shaft-shaped case receiving portion 22 is formed at the distal end portion of the functional portion main body 21, and a valve mounting portion 23 is formed at the end portion of the case receiving portion 22. The case receiving portion 22 is fitted to a functional portion mounting portion 24 formed at the rear end portion of the case 16. A bulb 15 as a light source is attached to the bulb mounting portion 23. The bulb 15 is a bean ball, an LED, or the like. In the functional unit 14, since the wire harness 45 is connected to a control circuit (not shown), the valve 15 is lit by a current supplied from the control circuit.

  The case 16 is formed in a long box shape in which the bottom portion on the housing 12 side is opened, and a flange 25 is formed at a front end portion in the drawing. In addition, a functional part mounting portion 24 that is cut out to fit the case receiving portion 22 of the functional portion 14 and has an opposing bowl shape is formed at the rear side end portion in the drawing. A pair of engaging portions 26 protruding in the surface direction of the molded ceiling 40 are formed at the center in the drawing. In the case 16, the case 15 is disposed on the outside of the opening 41 of the molded ceiling 40 by fitting the case receiving portion 22 of the functional portion 14 to the functional portion mounting portion 24, and the functional portion 14 is assembled on the housing 12. be able to.

  As shown in FIG. 2, a reflective layer 27 is formed on the inner surface of the case 16. The reflective layer 27 is preferably a highly reflective paint or seal. Since the valve 15 of the functional unit 14 is disposed outside the opening 41 of the molded ceiling 40, the valve 15 cannot be directly seen through the lens 13, so that no glare is felt.

  The interior lamp 10 includes a housing 12 in which a case 16 in which a case receiving portion 22 of a functional portion 14 is fitted to a functional portion mounting portion 24 is disposed on the back side of the molded ceiling 40, and a lens 13 is assembled to the optical path opening portion 17. Is inserted into the opening 41 from the surface side of the molded ceiling 40. As a result, the two locking projections 18 on the front side of the housing 12 are locked to the flange 25 of the case 16, and the two locking projections 19 at the center of the housing 12 are engaged with the engaging portion 26 of the case 16. The molded ceiling 40 is sandwiched between the case 16 and the housing 12 and assembled to the molded ceiling 40.

In the interior lighting 10 assembled to the molded ceiling 40, the functional unit main body 21 of the functional unit 14 is disposed outside the case 16. Therefore, by arranging the wire harness 45 connected to the functional unit 14 outside the case 16, the heat generated by the valve 15 is not directly applied to the wire harness 45, so that the quality of the wire harness 45 can be guaranteed. When the valve 15 disposed on the outer side of the opening 41 of the formed ceiling 40 is lit, the light emitted from the valves 15, after reflected by the reflective layer 27 of the case 16, the interior through the lens 1 3 irradiation To do. Thereby, there is no difference in illuminance between the portion of the lens 13 close to the bulb 15 and the portion far from the bulb 15, and the lens 13 can be irradiated with uniform light by indirect light from the bulb 15. Can be good. Moreover, since the light valve 1 5 emitted is directed toward the lens 13 and reflected by the reflecting layer 27 can be performed stably irradiated to the lens 13. In addition, when performing makeup or the like in the vehicle, it is possible to project a beautiful image on the mirror with uniform indirect light.

  According to the indoor illumination lamp 10 of the first embodiment, since the bulb 15 of the functional unit 14 is disposed outside the opening 41 of the molded ceiling 40, the bulb 15 cannot be directly seen through the lens 13, so that glare is achieved. I don't feel it. Further, the difference in illuminance is eliminated between the portion of the lens 13 close to the bulb 15 and the portion far from the bulb 15, and the lens 13 can be irradiated with uniform light, so that the design can be improved.

  Moreover, according to the interior lighting 10 of 1st Embodiment, the function part 14 is assembled | attached to the back surface side of the shaping | molding ceiling 40 via the case 16, and the shaping | molding ceiling is the case 16 and the housing 12 in which the function part 14 was assembled | attached. 40, the wire harness 45 connected to the functional unit 14 is disposed outside the case 16, so that the heat generated by the valve 15 does not directly act on the wire harness 45 and the quality of the wire harness 45 is guaranteed. can do.

  Moreover, according to the interior illumination lamp 10 of 1st Embodiment, since the light of the bulb | ball 15 is reflected by the reflective layer 27 of case 16 inner surface, and goes to the lens 13, it can irradiate the lens 13 stably. it can.

(Second Embodiment)
Next, with reference to FIG. 3, 2nd Embodiment of the interior illumination lamp which concerns on this invention is described. Note that the same or equivalent parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified.

  As shown in FIG. 3, the interior illumination lamp 30 of the second embodiment uses a lens 31 having a prism portion 32.

  The lens 31 is made of a transparent or translucent resin, and a prism portion 32 is integrally formed on an upper portion of a lens body 33 having a uniform thickness disposed at a lower portion, and the inside is hollow. A coating layer 35 is formed on the outer surface of the slope 34 constituting the prism portion 32. The coating treatment layer 35 is printing, vapor deposition, film in-mold, painting, or the like, and is formed so as to cover the slope 34. Since the coating layer 35 is disposed so as to cover the inclined surface 34 of the prism portion 32, in order to collect dust and the like existing on the back surface side of the molded ceiling 40, the dust is no longer on the optical path of the bulb 15, and the luminous intensity Unevenness disappears. In addition, since the dust cannot be seen from the room, the appearance can be improved. In the lens 31, the lens body 33 and the prism portion 32 may be a lens body having no hollow portion.

  Since the bulb 15 of the functional unit 14 is disposed outside the opening 41 of the molded ceiling 40, the light emitted from the bulb 15 is transmitted from the light incident surface 36 disposed perpendicular to the lens body 33 to the prism unit 32. Is refracted on the back side of the inclined surface 34 and heads toward the lens body 33. For this reason, it is possible to produce the light to be radiated indoors by dispersing or concentrating the light toward the room through the lens body 33.

  According to the interior illumination lamp 30 of the second embodiment, since the light from the bulb 15 is refracted through the prism portion 32 and travels indoors, the light from the bulb 15 is dispersed or concentrated by the prism portion 32. Thus, it is possible to produce the light to be irradiated indoors.

  Further, according to the interior illumination lamp 30 of the second embodiment, since dust or the like existing on the back surface side of the molded ceiling 40 accumulates on the coating treatment layer 35, the dust or the like disappears on the optical path of the bulb 15 and becomes luminous intensity. Unevenness disappears. Further, since dust and the like cannot be seen from the room, the appearance can be improved.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. For example, a switch unit may be arranged in the function unit, and a switch knob provided in the switch unit may be operated by protruding from the molded ceiling.

  Further, the number of valves is not limited to the illustrated one, but may be a pair of two or a plurality of valves.

  Further, the shape of the housing and the lens is not limited to the illustrated quadrangle, and may be a circle or an ellipse, and these are selected according to the atmosphere of the passenger compartment.

  Moreover, when attaching to a suspended ceiling instead of a molded ceiling, it can attach to the opening part formed in the roof inner panel similarly to the above.

It is a disassembled perspective view of 1st Embodiment of the interior lighting lamp which concerns on this invention. It is a longitudinal cross-sectional view of the room illumination lamp shown in FIG. It is a longitudinal cross-sectional view of 2nd Embodiment of the interior lighting lamp which concerns on this invention. It is sectional drawing of the conventional room illumination lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,30 Interior illumination lamp 11 Design part 12 Housing 13 Lens 14 Function part 15 Bulb (light source)
16 Case 27 Reflective layer 32 Prism part 35 Covering treatment layer 40 Molded ceiling (interior material)
41 opening

Claims (3)

A design portion comprising a housing fixed to an opening provided in an interior material of a vehicle body and a lens assembled to the housing; a functional portion including a light source; and a case for assembling the functional portion on the back side of the interior material An interior lamp that sandwiches and fixes the interior material between the case and the housing,
The light source of the functional part is disposed outside the opening of the interior material;
A reflective layer is formed on the inner surface of the case;
The lens includes a light incident surface that is disposed perpendicular to the lens body and receives light from the light source, and a prism unit that refracts light incident from the light incident surface and polarizes the light toward the room. This is an interior lighting. The interior illumination lamp according to claim 1 , wherein the prism portion is integrally formed on an upper portion of the lens body . The interior illumination lamp according to claim 1 or 2 , wherein a coating layer is formed on an outer surface of an inclined surface constituting the prism portion .

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