JPH11217045A - Light emitting type door window panel structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an upper side end of a door window panel to emit light in a wide range with even one light. SOLUTION: Rays (a) and (b) from light sources A and B arranged on bath sides of a central axis S are turned in an separating direction from the central axis S, respectably, by an inner lens 15 serving as a light distribution means. Therefore, just one light 6 can allow an upper side end 4 of a door window panel 1 to emit light in a wide range. The rays (a) and (b) emitted from the light sources A and B overlap little each other so that uniform luminance is obtained at a light emitting range H of the upper side end 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting door window panel structure.

[0002]

2. Description of the Related Art There is a door window panel of a vehicle having a structure in which a lamp is attached to a lower edge. That is, a fan-shaped light beam emitted from the light source of the lamp is made incident on the inside of the plate thickness surface of the door window panel, and the light beam is emitted from the upper edge portion of the door window panel, thereby causing the upper edge portion to emit light. (A similar technology is disclosed in
122343).

In general, the light distribution angle (fan angle) of a fan-shaped light beam emitted from a light source in a lamp is fixed, and the light emission range at the upper edge of a door window panel in one lamp is narrow. A plurality of lamps are attached to the lower edge of the window panel to extend the light emission range at the upper edge.

In this manner, the upper edge of the door window panel is made to emit light in a wide range, so that the occupant is notified of the presence of the upper edge. Prevents the edges and part of the occupant's body from hitting.

[0005]

However, in such a conventional technique, a plurality of lamps are required to emit light over a wide range of the upper edge of the door window panel. Installation work to the is troublesome.

The present invention has been made by paying attention to such a conventional technique, and a light-emitting door window panel structure capable of emitting light over a wide range of the upper edge of the door window panel even with one lamp. Is provided.

[0007]

According to the first aspect of the present invention,
At least one pair of light sources are provided on the lamp mounted on the lower side end of the door window panel with the central axis interposed therebetween, and both light sources emit fan-shaped light rays in the thickness plane of the door window panel. In the light-emitting door window panel structure for emitting light at the upper side end, light is provided to the lamp with light distribution means for directing light rays from both light sources in directions away from the central axis.

According to the first aspect of the present invention, the light from both light sources sandwiching the central axis is directed by the light distribution means in a direction away from the central axis, so that even with one lamp, the door window panel can be used. Can emit light in a wide range at the upper edge. In addition, since the overlapping portions of the light beams emitted from both light sources are reduced, uniform brightness can be obtained in the light emitting range at the upper edge.

The invention according to claim 2 is characterized in that the light distribution means is formed by an inner lens for directing the light beam in a direction away from the central axis.

According to the second aspect of the present invention, since the light distribution means is the inner lens, the light emission range can be expanded only by adding the inner lens to the existing lamp.

The invention according to claim 3 is characterized in that the light distribution means is formed by tilting the light source itself in a direction away from the central axis.

According to the third aspect of the present invention, since the light source itself is tilted in a direction away from the central axis, another component such as an inner lens is unnecessary.

According to a fourth aspect of the present invention, the light distribution means is formed by tilting a substrate on which the light source is supported.

According to the fourth aspect of the present invention, since the substrate on which the light sources are supported is inclined, the plurality of light sources can be in the same inclined state without variation.

According to a fifth aspect of the present invention, the lamp is attached by a fastening means penetrating the door window panel, and light beams from both light sources are emitted into the thickness plane of the door window panel while avoiding the fastening means. It is characterized by the following.

According to the fifth aspect of the present invention, since the lamp is mounted by the fastening means penetrating the door window panel, the mounting strength of the lamp is improved. In addition, even though the fastening means penetrates through the door window panel, the light distribution means keeps the light beams out of the fastening means, so that uniform brightness at the upper edge is maintained.

According to a sixth aspect of the present invention, there is provided an elliptical means for shortening the light beam from the light source in the thickness direction of the door window panel.

According to the sixth aspect of the present invention, since the elliptical means for shortening the light beam from the light source in the thickness direction of the door window panel is provided, the loss of the light beam deviating from the door window panel is eliminated, and the light utilization of the light source is reduced. Is improved.

The eleventh aspect of the present invention is characterized in that the ovalization means is formed by a light source having an elliptic light emission characteristic.

According to the seventh aspect of the present invention, since the light source itself has the elliptical emission characteristic, another component such as a prism is not required.

The eleventh aspect of the present invention is characterized in that the ovalization means is formed by a prism having a partially circular cross section.

According to the eighth aspect of the present invention, since the elliptical means is a prism, the light utilization factor of the light source can be improved only by adding a prism to an existing lamp.

According to a ninth aspect of the present invention, a groove is formed along the longitudinal direction at the top of the prism.

According to the ninth aspect of the present invention, since the groove along the longitudinal direction is formed at the top of the prism, the weight of the prism can be reduced.

[0025] According to a tenth aspect of the present invention, the elliptical means includes:
It is characterized by being formed by a light guide plate having a curved concave portion corresponding to a light source.

According to the tenth aspect of the present invention, since the ovalization means is a light guide plate, the light utilization rate of the light source can be improved only by adding the light guide plate to an existing lamp.

The eleventh aspect of the present invention is characterized in that the elliptical means is formed integrally with the inner lens.

According to the eleventh aspect of the present invention, the number of parts can be reduced since the elliptical means is formed integrally with the inner lens.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 to FIG. 6 are views showing a first embodiment of the present invention. Reference numeral 1 denotes a rear door window panel, which is attached to a sashless door (not shown) so as to be able to move up and down. The door window panel 1 has corners 2 and 3 at the front and rear of the automobile (the left side in FIG. 1 is a front direction and the right side is a rear direction). An upper edge 4 is located between the corners 2 and 3. Is formed.

A lamp 6 is attached to the lower edge 5 of the door window panel 1. The lamp 6 has a hollow structure in which a transparent lens 7 and an opaque housing 8 are combined, and two light sources (LEDs) A and B are provided inside.
Are provided with the central axis S interposed therebetween. The light sources A and B are supported on a substrate K.

An upwardly extending flange 9 is formed in the housing 8, and this flange 9 is attached to the lower end of the door window panel 1 by a bolt 10 as a "fastening means", a nut plate 11 and a washer 12. .
Since the bolts 10 are connected while penetrating both the door window panel 1 and the flange 9, the mounting strength of the lamp 6 is high.

On the other hand, a rib 13 is formed on the lens 7 with a gap between the lens 13 and the lower end of the door window panel 1. A silicone filler is provided between the rib 13 and the door window panel 1. 14 is injected. The rib 13
It serves as a guide when the silicon filler 14 is injected. After the silicon filler 14 is solidified, the lower end of the door window panel 1 is sandwiched between the rib 13 and the flange 9 via the silicon filler 14 to attach the lamp 6 to the door window panel 1. Further increase strength.

An inner lens 15 as "light distribution means" is additionally provided above the light sources A and B in the lamp 6, and the inner lens 15 has an uneven shape formed on one surface thereof. The fan-shaped light beams a and b emitted from the light sources A and B are directed in a direction away from the central axis S. That is, the optical axis a of each light beam a, b
1 and b1 are separated from the central axis S, and the overlapping portions of the light beams a and b are also reduced. Therefore, even if only one lamp 6 is used, the upper edge 4 of the door window panel 1
, The light emission range H can be widened. Furthermore, since there is little overlap between the light beams a and b, uniform brightness can be obtained in the light emission range H as shown in the graph of FIG. In FIGS. 1 and 3, among the two light sources A and B, the light beams a and b from the light sources A and B located inside each other are shown as representatives.

In addition, since the bolt 10 penetrates through the door window panel 1, the bolt 10 normally obstructs the light beams a and b. However, in the first embodiment, as described above, Since the directions of the light beams a and b are changed in the separating direction by the inner lens 15, the light beams a and b are in a state of avoiding the bolt 10, as shown in FIG. Is kept.

Further, the light sources A and B employed in the lamp 6 of the first embodiment are special ones having an elliptic emission characteristic.
As shown in FIG. 5, the light beams a and b from the light sources A and B have an elliptical shape shortened in the thickness direction of the door window panel 1 and enter the inside from the lower edge 5 of the door window panel 1. You. Therefore, as shown by the dotted line in FIG. 5, compared with the case where the light beams a and b are emitted in a circle having a diameter larger than the thickness of the door window panel 1, the loss of the light beams a and b deviating from the door window panel 1 is smaller. Light source A, B
The light utilization rate of the light is improved.

FIG. 7 is a diagram showing a second embodiment of the present invention. In the second embodiment, instead of providing the inner lens 15 as in the first embodiment, as a light distribution unit,
The light sources A and B supported by the substrate K are inclined in a direction away from the central axis S. Inner lens 15
Can be omitted, the number of parts can be reduced.

FIG. 8 is a diagram showing a third embodiment of the present invention. In the third embodiment, a substrate K ′ on which light sources A and B are supported is inclined in an inverted V shape from a central axis S. By tilting the substrate K 'in this manner, 2
The individual light sources A and B can be in the same tilt state without variation.

FIGS. 9 and 10 are views showing a fourth embodiment of the present invention. In the fourth embodiment, the light sources A and B
Although the one that emits ordinary circular light beams a and b was adopted, since the inner lens 15 is integrally formed with a prism 16 having a partially circular cross section as an elliptical means, the effect of this prism 16 The circular light beams a and b become elliptical. Therefore, the light utilization rates of the light sources A and B can be improved. In addition, since the prism 16 is integrally formed with the inner lens 15, compared to a case where the prism 16 is provided separately,
The number of parts can be reduced.

FIGS. 11 and 12 show a fifth embodiment of the present invention. In the fifth embodiment, a groove 16a is formed at the top of the prism 16 along the longitudinal direction. Since the light beams a and b passing through the portion corresponding to the top always enter the door window panel 1, even if this portion is deleted, there is no effect as the elliptical means. And the groove 1
The weight of the portion of the prism 16 is reduced by the formation of 6a.

FIGS. 13 and 14 are views showing a sixth embodiment of the present invention. In the sixth embodiment, the curved concave portions 17 corresponding to the light sources A and B
The light guide plate 17 on which a was formed was integrally formed. The light guide plate 17 can also make the light beams a and b elliptical, so that the light utilization rates of the light sources A and B are improved. In the sixth embodiment, three light sources A and B are provided.

[0042]

According to the first aspect of the present invention, light from both light sources sandwiching the central axis is directed by the light distribution means in a direction away from the central axis, so that even a single lamp can be used as a door. The upper edge of the wind panel can emit light in a wide range. In addition, since the overlapping portions of the light beams emitted from both light sources are reduced, uniform brightness can be obtained in the light emitting range at the upper edge.

According to the second aspect of the present invention, since the light distribution means is the inner lens, the light emission range can be expanded only by adding the inner lens to the existing lamp.

According to the third aspect of the present invention, since the light source itself is tilted in a direction away from the central axis, another component such as an inner lens is unnecessary.

According to the fourth aspect of the present invention, since the substrate on which the light sources are supported is inclined, a plurality of light sources can be in the same inclined state without variation.

According to the fifth aspect of the present invention, since the lamp is mounted by the fastening means penetrating the door window panel, the mounting strength of the lamp is improved. In addition, even though the fastening means penetrates through the door window panel, the light distribution means keeps the light beams out of the fastening means, so that uniform brightness at the upper edge is maintained.

According to the sixth aspect of the present invention, since the elliptical means for shortening the light beam from the light source in the thickness direction of the door window panel is provided, the loss of the light beam deviating from the door window panel is eliminated, and the light utilization of the light source is reduced. Is improved.

According to the seventh aspect of the present invention, since the light source itself has an elliptical emission characteristic, another component such as a prism is not required.

According to the eighth aspect of the present invention, since the elliptical means is a prism, the light utilization factor of the light source can be improved only by adding a prism to an existing lamp.

According to the ninth aspect of the present invention, since the groove along the longitudinal direction is formed at the top of the prism, the weight of the prism can be reduced.

According to the tenth aspect of the present invention, since the ovalization means is a light guide plate, the light utilization rate of the light source can be improved only by adding the light guide plate to an existing lamp.

According to the eleventh aspect of the present invention, the number of components can be reduced since the elliptical means is formed integrally with the inner lens.

[Brief description of the drawings]

FIG. 1 is a side view of a door window panel showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing the vicinity of a lamp.

FIG. 3 is an enlarged sectional view showing the vicinity of a lamp.

FIG. 4 is a graph showing luminance in a light distribution range.

FIG. 5 is a perspective view showing a structure near an inner lens.

FIG. 6 is a sectional view showing the structure of FIG. 5;

FIG. 7 is an enlarged sectional view showing the vicinity of a lamp according to a second embodiment.

FIG. 8 is an enlarged sectional view showing the vicinity of a lamp according to a third embodiment.

FIG. 9 is a perspective view showing a structure near a prism according to a fourth embodiment.

FIG. 10 is a sectional view showing the structure of FIG. 9;

FIG. 11 is a perspective view showing a structure near a prism according to a fifth embodiment.

FIG. 12 is a sectional view showing the structure of FIG. 11;

FIG. 13 is a perspective view showing a structure near a light guide plate according to a sixth embodiment.

FIG. 14 is a sectional view showing the structure of FIG. 12;

[Explanation of symbols]

 Reference Signs List 1 window panel 4 upper edge 5 lower edge 6 lamp 10 bolt (fastening means) 15 inner lens (light distribution means) 16 prism (elliptical means) 17 light guide plate (elliptical means) A, B light source S central axis H Emission range K, K 'substrate

Continued on the front page (72) Inventor Takayuki Sano 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.

Claims (11)

[Claims] At least one pair of light sources is provided on a lamp mounted on a lower side end of a window panel with a central axis interposed therebetween, and both light sources emit fan-shaped light beams in a plate-thick surface of a door window panel. A light-emitting door window panel structure that emits light at an upper edge of the door window panel, wherein the lamp includes light distribution means for directing light rays from both light sources in directions away from a central axis. Light-emitting door window panel structure. 2. The light emitting door window panel structure according to claim 1, wherein said light distribution means is formed by an inner lens for directing a light beam in a direction away from a central axis. Door panel construction. 3. A light-emitting door window panel structure according to claim 1, wherein said light distribution means is formed by tilting a light source itself in a direction away from a central axis. -Type door window panel structure. 4. The light-emitting door window panel structure according to claim 1, wherein the light-emitting door window panel structure is formed by tilting a substrate on which the light source is supported. 5. The light-emitting door window panel structure according to claim 1, wherein the lamp is attached by fastening means penetrating the door window panel, and light beams from both light sources are provided. Is emitted within the thickness plane of the door window panel while avoiding the fastening means. 6. The light-emitting door window panel structure according to claim 1, further comprising an elliptical means for shortening a light beam from the light source in a thickness direction of the door window panel. Light-emitting door window panel structure characterized by the following. 7. The illuminated door window panel structure according to claim 6, wherein said elliptical means is formed by a light source having an elliptic light emission characteristic. Construction. 8. The illuminated door window panel structure according to claim 6, wherein said elliptical means is formed by a prism having a partially circular cross section. 9. The illuminated door window panel structure according to claim 8, wherein a groove along a longitudinal direction is formed at a top of the prism. 10. The illuminated door window panel structure according to claim 6, wherein said elliptical means is formed by a light guide plate having a curved concave portion corresponding to a light source. Panel structure. 11. The luminous door window panel structure according to claim 8, wherein said elliptical means is formed integrally with an inner lens. Wind panel structure.