JP2019145462A - Marker lamp - Google Patents

Abstract

To provide a marker lamp facilitating confirmation of a state by corrected light of a road surface around a loading space during travel at night, and having high designability at the time of lighting.SOLUTION: A light guide body 14 includes: a lateral irradiation light guide body 26 which is provided oppositely to a light-emission surface of a lateral irradiation LED 24A, and has a lateral irradiation light-incident surface 26c on which light emitted from the lateral irradiation LED 24A is incident, and a lateral irradiation light-emitting surface 26a positioned at an opposite side to the lateral irradiation light-incident surface 26c; a road surface irradiation light guide body 30 provided oppositely to a light-emission surface of a road surface irradiation LED 24B and having a road surface irradiation light-incident surface 30d which is bent in a road surface direction from an optical axis direction of the road surface irradiation LED 24B on which light emitted from the road surface irradiation LED 24B is incident, and a road surface irradiation light-emitting surface 30c arranged so as to face a road surface side; and a diffusion light guide body 28 provided so as to cover a diffusion LED 24C, and formed with a first lens cut 28a diffusing light emitted from the diffusion LED 24C.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an improvement in marker lamps mounted on both sides of the outer surface of a truck bed.

  Marker lamps on both sides of the truck bed for the purpose of showing a sense of size such as the width and length of other vehicles when driving at night or for the driver to understand the size of the vehicle. It is done to install.

  The marker lamps are mounted on the lower side of the truck bed with a certain distance toward the outside. The marker lamp is attached in such a position that the tip of the marker lamp is viewed from the side of the cargo bed in order to prevent the marker lamp from being damaged and to ensure visibility from the driver.

  There are various types of marker lamps on the market. As an example of such a marker lamp, one disclosed in Patent Document 1 is known. The marker lamp described in Patent Document 1 constitutes a lamp body by a lamp body and a front lens, and a cylindrical reflector is disposed inside the lamp body. The front end side of the reflector spreads outwardly in a trumpet shape (this portion is a conical portion), and LEDs are arranged on the inside and outside of the reflector. The reason why the LED is used as the light source is to reduce the power consumption of the battery.

  When the marker lamps are attached to both sides of the truck bed as described above and lighted, the light emitted from the LEDs attached to the inside of the reflector goes straight and reaches the front part of the front lens. Then, the light is diffused in various directions by the diffusion lens formed on the inner peripheral surface of the front surface portion of the front lens, and mainly illuminates the front of the marker lamp (side the track).

  On the other hand, the light emitted from the LED attached to the outside of the reflector goes straight as it is to reach the conical portion of the reflector, is reflected by the conical portion, and its path is changed to the side (radial direction). It reaches the peripheral wall. And it diffuses in various directions by the cylindrical lens formed in the peripheral wall part inner peripheral surface of a front lens, and illuminates the circumference | surroundings of a marker lamp.

  As described above, in the conventional marker lamp, both the LED provided on the inside and the outside of the reflector are both diffused light and emitted to the outside, so that the lighting effect of the lamp is improved, and from the other vehicle or the driver's seat. It is said that the visibility of the position and length of the cargo bed can be improved.

Japanese Patent Laid-Open No. 10-031905

  The truck driver needs to visually check the condition of the road surface around the loading platform far away from the driver's seat so that the driver does not ride on the shoulder when turning right or left. When driving at night when the road surface is dark and difficult to understand, the condition of the road surface will be checked using the light from the marker lamp (diffused light emitted mainly from the cylindrical lens illuminates the road surface). There are bright and dark parts, and this light and dark creates a design effect by lens cut, but the presence of light and dark diffused light by this lens cut makes it difficult to distinguish between the shadow and the other part There is a problem that it is difficult to confirm the state of the road surface around the loading platform (for example, the presence or absence of a groove on the shoulder).

  In addition, there are many truck drivers who demand fashionability for the marker lamp, and a highly designable marker lamp that can appeal its presence is desired.

  The present invention has been made in view of such problems, and it is an object of the present invention to provide a marker lamp that is easy to check the state of light collected on the road surface around the loading platform during night driving and that has high designability when turned on. And

The invention described in claim 1 is composed of a side irradiation LED 24A, a road surface irradiation LED 24B provided on the ventral side of the side irradiation LED 24A, and a diffusion LED 24C provided on the back side of the side irradiation LED 24A. A base member 12 to which the LED 24 is attached;
The side illumination light input surface 26c and the side provided opposite to the light exit surface of the side illumination LED 24A, extend in the optical axis direction of the side illumination LED 24A, and receive light emitted from the side illumination LED 24A. A plate-shaped side illumination light guide 26 having a side illumination light exit surface 26a located on the opposite side of the side illumination input surface 26c, and a light exit surface of the road surface illumination LED 24B. The road illumination light exit surface 30c is arranged so as to bend toward the road surface side and the road surface illumination light entrance surface 30d where the light emitted from the road surface illumination LED 24B is bent and bent from the optical axis direction of the illumination LED 24b. A light guide 30 for irradiating a road surface having a light source and a diffusion LED 24C are provided so as to cover the diffusion LED 24C, and a first lens cut 28a for diffusing the light emitted from the diffusion LED 24C is formed. And a light guide 14 attached to the base member 12 and a dome-like shape so as to cover the base member 12 and the light guide 14. A side irradiation light emitting portion 16b whose both front and back surfaces are flat surfaces is formed at a position facing the surface 26a, and the front and back surfaces of the abdomen are opposed to the light emitting surface 30c for road surface irradiation. A light emitting portion for road surface irradiation 16c having a flat surface on both sides is formed. On the inner side surface of the portion where the light emitting portion for side irradiation 16b and the light emitting portion for road surface irradiation 16c are not formed, a second diffusion light source is formed. The marker lamp 10 includes a lamp cover 16 with a lens cut 16d.

  The invention according to claim 2 limits the shape of the light guide 26 for side irradiation. “The light emission surface 26a for side irradiation of the light guide 26 for side irradiation is a convex semicircle in plan view. It is formed in an arc shape ".

  The invention according to claim 3 further restricts the shape of the light guide 26 for side irradiation, and “the end of the side light guide 26 opposite to the side light emitting LED 24A A plurality of light incident convex portions 26b are formed at positions corresponding to the respective side illumination LEDs 24A, and the front ends of the respective light incident convex portions 26b are side illumination light incident surfaces 26c. To do.

  In this invention, the light emitted from the side illumination LED 24A passes through the side illumination light guide 26 and travels forward (outside the track) from the side illumination light output portion 16b of the lamp cover 16. Idemitsu. Here, since the side illumination light guide 26 is plate-shaped, most of the light from the side illumination LED 24A that enters the side illumination light guide 26 is within the side illumination light guide 26. Is straight or totally reflected and reaches the tip (light emitting surface for side irradiation 26a). As a result, the side illumination light exit surface 26a emits bright light as a whole, and straight light and surrounding light are emitted from the side illumination light exit surface 26a. The straight light and its peripheral light emitted from the side illumination light exit surface 26a, while maintaining the straightness of the side illumination light output portion 16b of the lamp cover 16 whose front and back surfaces are flat. Since it passes without being diffused, the visibility from other vehicles and the driver's seat is improved. It should be noted that the ambient light around the straight light emitted from the side illumination light output section 16b is illuminated so as to wrap around the portion where the straight light illuminates the object in a spotlight manner (see FIG. 7).

  The light emitted from the road surface illumination LED 24 </ b> B passes through the road surface illumination light guide 30 and emerges from the road surface illumination light output portion 16 c of the lamp cover 16 toward the outside lower side (road surface side). Here, since the road surface illumination light guide 30 is plate-shaped, most of the road surface illumination LEDs 24B that enter the road surface illumination light guide 30 are bent straight along the road surface illumination light guide 30 and go straight. Alternatively, it is totally reflected and reaches its tip (light emitting surface 30c for road surface irradiation). The straight light and its surrounding light emitted from the light emitting surface 30c for road surface irradiation pass through the road surface irradiation portion where both the front and back surfaces are flat as they are, and are spotlighted on the road surface around the loading platform as straight light without contrast. Illuminate brightly and evenly. Therefore, the light and darkness as when the diffused light by the lens cut is irradiated is not projected onto the road surface, and the state of the road surface can be easily confirmed. Note that the ambient light around the straight light emitted from the road surface illuminating light output portion 16c illuminates so as to wrap around the portion where the straight light illuminates the object like a spotlight as described above (see FIG. 7).

  Further, the light emitted from the diffusion LED 24C (and the remaining light that does not pass through or leaks from the side light guide 26 and the road surface light guide 30) is the first light of the light guide for diffusion. The first lens cut 28 a leads to the lamp cover 16, and is diffused by the second lens cut 16 d of the lamp cover 16 to brightly illuminate the surroundings. When the marker lamp 10 is viewed from the front, as described above, the entire side illumination light output surface 26a of the side illumination light guide 26 emits bright light, and is irradiated to the outside as a thick belt-like straight light. Therefore, the design effect by the combination with the above-described gorgeous diffused light is very original and meets the expectations of consumers who demand fashion.

  As in the second aspect of the invention, when the side illumination light output surface 26a of the side illumination light guide 26 is formed in a convex semicircular shape in plan view, the side illumination light output surface 26a is formed. Since it can visually recognize also from the side part side of the marker lamp 10, the visibility from a preceding vehicle and a following vehicle is improved further.

  When the light incident convex part 26b is formed in the edge part on the side facing the LED 24A for side irradiation of the light guide 26 for side irradiation like invention of Claim 3, side of the front-end | tip The light from the side illumination LED 24A that has entered the side illumination light guide 26 from the illumination light incident surface 26c is reflected on both side surfaces 26d of the light incident convex portion 26b, and the path of the light is narrowed. Accordingly, even when the side illumination LED 24A with a wide solid angle is used, the illumination angle of the ambient light emitted from the side illumination light output section 16b is narrowed, and the light emitted from the side illumination light output section 16b. The brightness of L1 can be further increased.

It is a perspective view which shows the marker lamp concerning this invention. It is a disassembled perspective view which shows the marker lamp concerning this invention. It is sectional drawing which shows a 1st inner lens. FIG. 4 is a cross-sectional view taken along line A-A ′ in FIG. 3. It is sectional drawing which shows an outer lens. It is a figure which shows a use condition. It is a figure which shows typically the course of the light in the marker lamp concerning this invention. It is a figure which shows typically the course of the light in the light guide for side irradiation.

  The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a marker lamp 10 according to the present invention, and FIG. 2 is an exploded perspective view of the marker lamp 10. Note that FIG. 2 shows the top and bottom rotated by 90 degrees.

  As shown in these drawings, the marker lamp 10 of the present invention is roughly constituted by a base member 12, a light guide 14, a lamp cover 16, and a fixing ring 18.

  The base member 12 includes a disk-shaped base 20 and a substrate 22 provided on the upper surface of the base 20. A fitting groove 20a into which the lamp cover 16 is fitted is formed on the outer peripheral edge of the base 20, and an engaging projection 20b is formed on the inner wall of the fitting groove 20a. Further, two mounting pins 20c for mounting a light guide 14 to be described later are erected on the upper surface of the base 20, and both end portions on the abdomen side (road surface side) so as not to buffer the mounting pins 20c. A substrate 22 provided with a notch 22 a is attached on the base 20.

  A plurality of LEDs 24 are mounted on the substrate 22. Here, among the plurality of LEDs 24 mounted on the substrate 22, six LEDs 24 arranged in a horizontal row in the central portion of the substrate 22 are side irradiation LEDs 24A, and the ventral side (marker of the side irradiation LEDs 24A) Three LEDs 24 arranged in a horizontal row below the lamp 10 (on the road surface side) are road surface irradiation LEDs 24B, and are arranged in a pyramid shape on the back side of the side irradiation LEDs 24A (above the marker lamp 10) 6. The two LEDs 24 are diffusion LEDs 24C. That is, on the substrate 22, a group of LEDs 24 including side irradiation LEDs 24A, road surface irradiation LEDs 24B, and diffusion LEDs 24C are attached. In addition, each LED24 (LED 24A for side irradiation, LED24B for road surface irradiation, and LED24C for spreading | diffusion) has employ | adopted the thing with the wide solid angle, and the 120 degree thing is employ | adopted in the present Example.

  In the present embodiment, the LED 24 having a wide solid angle is adopted, as will be described later, with respect to the road surface illumination LED 24B, the road surface is illuminated by light (straight light and its surrounding light) emitted from the road surface illumination light output portion 16c. This is because the diffused LED 24C can emit diffused light from the entire lamp cover 16 without any unevenness. Of course, the solid angle of the road surface irradiation LED 24B and the diffusion LED 24C may be different.

  On the other hand, the side illumination LED 24A is required to increase the brightness of the light emitted from the side illumination light output portion 16b, and therefore the illumination angle of the ambient light around the straight light is narrower ( In this embodiment, as will be described later, the incident light projection 26b is provided on the side irradiation light guide 26 to narrow the irradiation angle of the ambient light. Therefore, like the road surface irradiation LED 24B and the diffusion LED 24C, LEDs having a wide solid angle are adopted as the side irradiation LEDs 24A.

  A conductive wire (not shown) for supplying power to the LED 24 is electrically connected to the substrate 22, and the other end of the conductive wire is led out from the central portion of the base 20.

  The light guide 14 is for guiding the light emitted from the LED 24 to the lamp cover 16, and includes a side light guide 26 for diffusion, a light guide 28 for diffusion, and a light guide 30 for road surface irradiation. The three members are combined to form a hollow, generally shell-like shape as a whole. In this embodiment, the side illumination light guide body 26 and the diffusion light guide body 28 are configured as a single body, but they may be configured separately.

  The light guide 26 for side irradiation is a flat plate made of a transparent body, and when viewed from a plane, the tip portion is formed in a convex arc shape (see FIG. 4), and is viewed from the side. In some cases, the distal end portion is expanded in a morning glory shape, and the wide and flat distal end surface is the side illumination light exit surface 26a. The reason why the distal end portion of the side-illuminating light guide 26 is enlarged in diameter when viewed from the side is to emit light from the entire surface of the wide side-illuminating light exit surface 26a.

  The side irradiation light guide 26 is provided to face the light output surface of the side irradiation LED 24A, and is disposed so as to extend in the optical axis direction of the side irradiation LED 24A. There are a plurality of (in this embodiment, the side illumination LED 24A in this embodiment) on the side illumination LED 24A side end (light incident side end; right end in FIGS. 3 and 4) of the side illumination light guide 26. 6) light incident convex portions 26b are formed so as to protrude at positions facing the respective side irradiation LEDs 24A (see FIG. 4). Each light incident convex portion 26b is formed in a trapezoidal shape that tapers toward the distal end side (side illumination LED 24A side), and the distal end surface is a lateral illumination incident light surface 26c (thus, The side illumination light exit surface 26a is provided to face the side illumination light entrance surface 26c). The inclined hypotenuse of each light incident convex portion 26b is a reflection side surface 26d.

  In the present embodiment, the angle formed by the inclined reflecting side surfaces 26d of each light incident convex portion 26b is set to about 60 ° ± 10 °. As a result, the wide light (solid angle is as wide as 120 degrees) emitted from the side illumination LED 24A is totally reflected by the reflection side surface 26d, so that the ambient light (straight light) is emitted from the side illumination light output surface 26a. The irradiation angle of the light that illuminates the surroundings can be narrowed (about 60 ± 10 °).

  The diffusion light guide 28 is a hollow, substantially bullet-shaped member made of a transparent body, and the side illumination light guide 26 described above is disposed at the center of the diffusion light guide 28 on the ventral side (road surface side) and the back. It is arranged so as to bisect up and down. In this embodiment, the diffusion light guide 28 and the side illumination light guide 26 are integrally formed. However, the diffusion light guide 28 is divided into a ventral portion and a back portion. Separated parts may be prepared, and these may be separately attached to both the ventral side and the back side of the side-illuminating light guide 26.

  A first lens cut 28a having a wedge-shaped cross section is provided on the inner surface of the light guide 28 for diffusion (see FIG. 3). In the first lens cut 28a, the light incident surface 28b, which is the surface facing the diffusing LED 24C, is slightly inclined so that the side closer to the center is located slightly closer to the opening than the outside (see FIG. 3). ).

  A notch 28c is formed at the end of the diffusion light guide 28 on the ventral side of the LED 24 (base member 12), and a road surface irradiation light guide to be described later is formed in the notch 28c. 30 is installed so that it may fit.

  Further, in the vicinity of the notch portion 28c in the light guide 28 for diffusion, attachment portions 28d are formed on both sides thereof so as to sandwich the notch portion 28c therebetween.

  The road surface illuminating light guide 30 is a transparent body made entirely of transparent resin, like the side illuminating light guide 26 and the diffusing light guide 28, and the road surface illuminating light guide body 30a and legs 30b. And have. The road surface illuminating light guide body 30a is a plate-like portion, and its tip is bent in the road surface direction from the optical axis direction of the road surface illuminating LED 24b toward the road surface, and the bent end surface is light output for road surface irradiation. Surface 30c. The base end portion end surface (surface facing the road surface irradiation LED 24B) opposite to the road surface irradiation light output surface 30c is a road surface irradiation light incident surface 30d. Further, the bent portion of the road surface irradiation light guide 30 is a bent portion 30e.

  Each leg 30b is a portion provided integrally with the road surface illuminating light guide body 30a on both the left and right sides of the road surface illuminating light guide body 30a, and a fixing hole 30f is formed at an end thereof. The mounting pin 20c of the base 20 is fitted in the fixing hole 30f.

  The front end of the road surface irradiation light guide body 30a (the road surface irradiation light output surface 30c) is substantially in the state where the road surface irradiation light guide body 30 is incorporated in the cutout portion 28c of the diffusion light guide 28. A gentle convex arc shape is formed so as to match the outer surface shape of the diffusion light guide 28 so as to be flush with each other.

  The lamp cover 16 has a dome shape made of a translucent resin as a whole, and a cavity 16a having a size capable of accommodating the light guide 14 is formed therein (see FIG. 7).

  On the top of the lamp cover 16, a strip-shaped side illumination light emitting portion 16 b that slightly bulges outward is formed. The radius of curvature of the side illumination light output portion 16b is set to be larger than the radius of curvature of the side illumination light output surface 26a of the side illumination light guide 26 (that is, for side illumination on the lamp cover 16 side). The light exit part 16b draws a gentler arc than the side illumination light exit surface 26a on the light guide 14 side), and both front and back surfaces are flat. In a state where the marker lamp 10 is assembled, the side illumination light output portion 16b faces the side illumination light output surface 26a of the side illumination light guide 26 with a slight gap therebetween ( (See FIG. 7).

  On the abdomen side (road surface side, lower surface side in FIG. 6) of the lamp cover 16, a light emitting portion 16c for road surface irradiation in the form of an elongated rectangular band is formed. The road surface illuminating light output part 16 c has flat front and back surfaces. When the marker lamp 10 is assembled, the road surface illuminating light output part 16 c is the road surface illuminating light output surface 30 of the road surface illuminating light guide 30. It faces 30c with a slight gap (see FIG. 7).

  It is suitable for diffusing the light from the light guide 14 to the inner surface of the lamp cover 16 except for the side light emitting part 16b and the road surface light emitting part 16c. A second lens cut 16d is applied (see FIG. 5).

  Further, an engaging convex portion 16 e that engages with the engaging protrusion 20 b of the base 20 is formed on the outer surface of the lower end portion of the lamp cover 16.

  The fixing ring 18 is ring-shaped and has a “drop-off prevention function” that prevents the lamp cover 16 attached to the base 20 from being detached from the base 20, from the gap between the base 20 and the lamp cover 16. It has various functions such as “waterproofing function” for preventing moisture such as rainwater from entering, and “beauty improvement function” for improving the aesthetic appearance.

  When the marker lamp 10 is assembled, the fixing hole 30f of the light guide 30 for road surface irradiation and the mounting portion 28d of the light guide 26 for side irradiation are respectively fitted into the mounting pins 20c of the base member 12, and fixing screws prepared separately are provided. These are fixed at 32 (see FIG. 2). As a result, the side irradiation light guide 26 and the road surface irradiation light guide 30 are fixed to the base member 12.

  Next, the lower end portion of the lamp cover 16 is fitted into the fitting groove 20a of the base 20, and the lamp cover 16 is rotated. Then, the engaging projection 16e of the lamp cover 16 and the engaging protrusion 20b of the base 20 are engaged, and the lamp cover 16 is firmly fixed to the base member 12. Here, the curvature radius of the top of the lamp cover 16 (light emission part 16b for side irradiation) is the curvature of the top of the light guide 14 (light emission surface 26a for side irradiation of the side light guide 26). Since it is formed larger than the radius and draws a gentle arc, the lamp cover 16 and the light guide 14 do not buffer when the lamp cover 16 is rotated. When the fixing ring 18 is finally attached, the assembly of the marker lamp 10 is completed.

  When using the marker lamp 10 configured as described above, as shown in FIG. 6, the marker lamp 10 is positioned so that the road surface illuminating light emitting portion 16 c of the lamp cover 16 faces the road surface side. This is attached to the mounting stay S suspended from the loading platform of the truck T by using fastening means B such as bolts and nuts. And the attachment of the marker lamp 10 to the track T is completed by electrically connecting the tip of the lead wire (not shown) to the battery of the track T.

  When the marker lamp 10 is turned on, the LED 24 emits light. Here, most of the light emitted from the side illumination LED 24A among the LEDs 24 is, as shown in FIG. 7, from the light incident convex portion 26b of the side illumination light guide 26 to the side illumination light guide 26. The light then enters the side illumination light guide 26 as it goes straight or totally reflected, and exits from the side illumination light exit surface 26a (see FIG. 8). Then, the light emitted from the side light guide 26 is irradiated to the outside (side the track T) through the side light output part 16 b of the lamp cover 16.

  Here, in this embodiment, the solid angle of the LED 24 is as wide as 120 °. However, the light incident from the light incident convex portion 26b into the side light guide 26 is reflected by the light incident convex portion 26b. By being totally reflected by the side surface 26d, the angle formed by the reflective side surface 26d (in this embodiment, about 60 ° ± 10 °) is narrowed (FIG. 8). Then, from the side illumination light exit surface 26a, spotlight-like straight-ahead light and ambient light with a narrow illumination angle that illuminates the surrounding area (the illumination range is about 60 ° ± 10 ° by the light incident convex portion 26b). Light is emitted, and the entire side light emitting surface 26a emits light brightly. Since the side illumination light output part 16b has flat front and back surfaces, the light L1 emitted from the side illumination light output part 16b is directly emitted as light in which the ambient light is condensed in a narrow range. As described above, since the tip portion of the marker lamp 10 shines brightly and high-intensity light with a narrow irradiation angle is emitted outward, the visibility from other vehicles and the driver's seat is greatly improved.

  Next, the behavior of the light emitted from the road surface irradiation LED 24B will be described. Most of the light emitted from the road surface illumination LED 24 </ b> B enters the road surface illumination light guide 30 from the road surface illumination light incident surface 30 d of the road surface illumination light guide 30, and the road surface illumination light guide 30. Then, the light exits from the light emitting surface 30c for road surface irradiation. Then, the light emitted from the road surface irradiation light guide 30 is irradiated to the outside through the road surface irradiation light output part 16 c of the lamp cover 16.

  Here, in the light guide 30 for irradiating the road surface, the light incident convex portion 26b like the light guide 26 for the side irradiating light is not provided, so that the solid angle emitted from the road surface irradiating LED 24B is wide (120 degrees). ) The light travels straight or totally in the road surface irradiation light guide 30 without being narrowed. Then, the light is refracted at the bent portion 30e in the middle, and the path of the light is changed to the road surface side. From the road surface emitting light surface 30c, the light travels straight, and the surrounding light has a wide irradiation angle (about 120 °). Will come out. And since the light emitting part for road surface irradiation 16c has flat surfaces on both sides, the light L2 emitted from the light emitting part for road surface irradiation 16c is directly emitted as light having a wide irradiation angle. In contrast, bright and uniform light without light and darkness illuminates the road surface.

  Finally, the behavior of the light L3 emitted from the diffusion LED 24C will be described. The light L3 emitted from the diffusing LED 24C is changed in its direction to the side by a wedge-shaped first lens cut 28a provided on the inner surface of the side illuminating light guide 26, and the side illuminating light guide Light is emitted from the body 26. Then, the path is diffused in all directions by the second lens cut 16d provided on the inner surface of the lamp cover 16, and the surroundings are lit up brilliantly as diffused light by the lens cut. Since the solid angle of the light emitted from the diffusion LED 24C is as wide as 120 degrees, the diffused light is emitted uniformly from the front end (top portion) to the base end portion (bottom portion) of the lamp cover 16. In addition, light which did not enter into the side illumination light guide 26 in the side illumination LED 24A (or light leaked therefrom), or incident into the road surface illumination light guide 30 in the road surface illumination LED 24B. The light that has not been (or the light that has leaked from it) is also diffused and emitted from the lamp cover 16 by the first lens cut 28a and the second lens cut 16d. In other words, all the light L3 emitted from the portion of the lamp cover 16 where the side illumination light emitting portion 16b and the road surface illumination light emitting portion 16c are not formed becomes diffused light due to the lens cut as bright and dark gorgeous light. Idemitsu.

  When such a marker lamp 10 is viewed from the side surface side of the track T (that is, when the side illuminating light output portion 16b is viewed from the front), the side illuminating light output surface 26a of the side illuminating light guide 26 is obtained. As the entire surface of the light shines, this appears as a thick band-like bundle of light. Therefore, a unique design effect is produced in combination with the bright and dark gorgeous design effect by the diffused light L3 generated by the lens cut emitted from the entire lamp cover 16 described above, and meets the expectation of consumers who demand fashionability. be able to.

  According to the marker lamp 10 of the present embodiment, the tip of the lamp cover 16 (in the vicinity of the side irradiation light output surface 26a and the side irradiation light output portion 16b) shines brightly, so that visibility from other vehicles and the driver's seat is improved. It is greatly improved and the vehicle width position can be easily confirmed. Further, since the straight light emitted from the light emitting part for road surface irradiation 16c can illuminate the road surface brightly and uniformly, it is easy to check the road surface condition around the loading platform. Further, a lens that emits light from the entire lamp cover 16 by the thick belt-like light (straight-ahead light and surrounding ambient light) emitted from the side illumination light output portion 16b, and the first lens cut 28a and the second lens cut 16d. The unique design effect of the combination with the diffused light from the cut sufficiently meets the expectations of consumers who demand fashion.

10: Marker lamp, 12: Base member, 14: Light guide, 16: Lamp cover, 16a: Cavity, 16b: Light emitting part for side irradiation, 16c: Light emitting part for road surface irradiation, 16d: Second lens cut, 16e: engagement protrusion, 18: fixing ring, 20: base, 20a: fitting groove, 20b: engagement protrusion, 20c: mounting pin, 22: substrate, 24: LED, 24A: LED for side irradiation, 24B: LED for road surface illumination, 24C: LED for diffusion, 26: Light guide for side illumination, 26a: Light exit surface for side illumination, 26b: Light incident convex portion, 26c: Light incident surface for side illumination, 26d : Reflective side surface, 28: diffusion light guide, 28a: first lens cut, 28b: light incident surface, 28c: notch, 28d: mounting portion, 30: light guide for road surface irradiation, 30a: road surface irradiation Light guide body, 30b: leg, 30c: for road surface irradiation Light plane, 30d: road illumination light incident surface, 30e: bent portion, 30f: fixing hole, 32: fixing screws, B: fastening means, S: mounting stay, T: Track

Claims (3)

A base member to which an LED comprising a side illumination LED, a road surface illumination LED provided on the ventral side of the side illumination LED, and a diffusion LED provided on the back side of the side illumination LED is attached. ,
Side illumination light entrance surface provided facing the light exit surface of the side illumination LED, extending in the optical axis direction of the side illumination LED, and receiving light emitted from the side illumination LED. And a plate-like side illumination light guide having a side illumination light exit surface located on the opposite side of the side illumination light entrance surface, and a light exit surface of the road illumination LED, Road surface illumination light that is bent from the optical axis direction of the road surface illumination LED to the road surface direction and is arranged so as to face the road surface illumination light incident surface and the road surface side where the light emitted from the road surface illumination LED enters. A plate-shaped road surface irradiation light guide having a surface, and a diffusion light guide provided so as to cover the diffusion LED and formed with a first lens cut for diffusing the light emitted from the diffusion LED A light guide body attached to the base member, And a domed shape so as to cover the base member and the light guide, and at the top of the head facing the light emitting surface for side irradiation, the front and back surfaces are flat surfaces. A light emitting part for road surface is formed, and a light emitting part for road surface irradiation whose both front and back surfaces are flat is formed on the abdomen at a position facing the light emitting surface for road surface irradiation. A marker lamp, comprising: a lamp cover provided with a second lens cut for diffusion, on an inner surface of a portion where the light emitting part for light and the light emitting part for road surface irradiation are not formed.   2. The marker lamp according to claim 1, wherein the side illumination light-emitting surface of the side illumination light guide is formed in a convex semicircular shape in plan view. A plurality of light incident convex portions are formed at positions corresponding to the respective side irradiation LEDs, at an end portion of the side irradiation light guide opposite to the side irradiation LEDs.
The marker lamp according to claim 1 or 2, wherein a tip of each light incident convex part is a light incident surface for side irradiation.