JP2018063923A - Roadside lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure an irradiation state with respect to a necessary region on a road surface while achieving reduction in manufacturing cost.SOLUTION: A roadside lamp includes: a lamp housing 2 having an opening; a light source 7 for emitting light; and a cover 3 which has a transmission part 17 in which the light emitted from the light source is transmitted, and a light shielding part 15 which shields the light emitted from the light source, in which the transmission part and the light shielding parts are formed integrally and they block the opening together. By at least one part of the light transmitted by the transmission part, a road surface is radiated. Thereby, as shielding and transmission of the light emitted from the light source are both performed in the cover, the number of components is reduced, and an irradiation state with respect to a necessary region on the road surface can be secured while achieving reduction in manufacturing cost.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technical field of a shoulder lamp that irradiates a road surface with at least a part of light transmitted through a transmission part.

  Vehicle lamps include roadside lamps that are used particularly in large vehicles such as trucks and buses. The roadside lamp is disposed, for example, in the vicinity of the rear wheel or the entrance / exit. By turning on the road shoulder lamp, for example, the road surface located near the rear wheel is irradiated, and the visibility of the driver when turning right or left or when going backward is improved.For example, the road surface located near the entrance / exit Is improved and the visibility of passengers is improved.

  In such a road shoulder lamp, when light is directed to a region other than the region that contributes to the improvement of visibility on the road surface as described above, the light directed toward this region is in the driver or pedestrian of the vehicle that exists in the surroundings. There is a risk of dazzling light. Therefore, it is desirable for road shoulder lamps to irradiate light only to areas that contribute to improved visibility on the road surface.

  Thus, as a roadside lamp having a configuration that irradiates light only to a region that contributes to improvement in visibility on the road surface, there is one provided with a lens having a transmission part through which light is transmitted and a cover shade that covers the lens. (For example, refer to Patent Document 1). In Patent Document 1, the cover shade is simply indicated as “cover”.

  In the road lamp described in Patent Document 1, the lens is made of a transparent material, and is colored by being coated with a cover shade. A cover shade is attached to the lens from the outer surface side, and the lens is covered with the cover shade except for a part. The portion of the lens that is not covered by the cover shade functions as a transmission part, and when light is emitted from the light source, a part of the light is shielded by the cover shade, and the light that has not been shielded is transmitted through the transmission part and the road surface. Is irradiated. Therefore, the cover shade functions as a light shielding part that shields light.

No. 3200286

  By the way, in the road lamp described in Patent Document 1, it is necessary to attach a painted cover shade to the lens in addition to the coating on the cover shade, and there are many work steps for manufacturing the road shoulder lamp, and the manufacturing cost is increased. May increase.

  In the manufacture of road shoulder lamps, it is also desired to reduce the number of parts to reduce the manufacturing cost.

  Therefore, an object of the road shoulder lamp of the present invention is to overcome the above-described problems and to secure an irradiation state for a necessary area of the road surface while reducing the manufacturing cost.

  First, a road shoulder lamp according to the present invention shields a lamp housing having an opening, a light source that emits light, a transmission part that transmits light emitted from the light source, and light emitted from the light source. A light-shielding portion, the transmission portion and the light-shielding portion are integrally formed and a cover for closing the opening is provided, and the road surface is irradiated by at least a part of the light transmitted through the light-transmitting portion. is there.

  Thereby, both shielding and transmission of the light emitted from the light source are performed in the cover.

  Secondly, in the above-mentioned road shoulder lamp according to the present invention, it is desirable that the cover is provided with a collar portion that covers the transmission portion from the front of the lamp and functions as the light shielding portion in a state of being separated from the transmission portion.

  Thereby, the light which permeate | transmitted the permeation | transmission part and went to the lamp front side is shielded by the collar part.

  Thirdly, in the road shoulder lamp according to the present invention described above, the cover is provided with a protruding portion that protrudes to the front side of the lamp, and the protruding portion includes a protruding surface portion that is positioned on the front side of the lamp and the It is desirable that a lower surface portion continuous with a lower end portion of the projecting surface portion is formed, the projecting surface portion is provided as the light shielding portion, and the lower surface portion is provided as the transmitting portion.

  Thereby, the light incident on the projecting portion is shielded by the projecting surface portion and transmitted through the lower surface portion.

  Fourthly, in the road shoulder lamp according to the present invention described above, the cover is provided with a projecting portion protruding toward the front side of the lamp, and the light emitted from the light source is directed to the projecting surface toward the road surface. It is desirable to form a reflective surface that reflects.

  As a result, both the light directed to the reflection surface and the light transmitted without passing through the reflection surface are irradiated onto the road surface.

  Fifth, in the above-described road shoulder lamp according to the present invention, it is preferable that a light shielding portion that shields light emitted from the light source is provided below the transmission portion of the cover.

  Thereby, in addition to the light shielding part, the light is also shielded by the light shielding part.

  According to the present invention, since the light emitted from the light source is both shielded and transmitted by the cover, the number of parts is reduced and the manufacturing cost is reduced, and the irradiation state for the necessary area of the road surface is ensured. can do.

The embodiment of the road shoulder lamp of the present invention is shown together with FIGS. 2 to 6, and this figure is a perspective view of the road shoulder lamp. It is a disassembled perspective view of a shoulder lamp. It is a vertical sectional view of a shoulder lamp. It is a vertical sectional view of a shoulder lamp provided with another cover. It is a vertical sectional view of a shoulder lamp provided with another cover. It is a vertical sectional view of a roadside lamp provided with another cover.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention shoulder lamp is demonstrated with reference to an accompanying drawing.

  The roadside lamp 1 has a cover and a lamp housing which are coupled in the front-rear direction. Hereinafter, the side where the cover is positioned with respect to the lamp housing is shown as the front of the lamp. Therefore, when the cover is coupled on the front side of the lamp housing, the front of the lamp is forward, and when the cover is coupled on the rear side of the lamp housing, the front of the lamp is rear.

  In the following, a road shoulder lamp in which a cover is coupled on the front side of the lamp housing will be described. Accordingly, in the following embodiments, the front of the lamp will be described as the front.

  Road shoulder lamps are used in vehicles, particularly large vehicles such as trucks and buses. The roadside lamp is disposed, for example, in the vicinity of the rear wheel or the entrance / exit. By turning on the road shoulder lamp, for example, the road surface located near the rear wheel is irradiated, and the visibility of the driver when turning right or left or when going backward is improved.For example, the road surface located near the entrance / exit Is improved and the visibility of passengers is improved.

  The shoulder lamp 1 includes a lamp housing 2 having an opening at a front end and a cover 3 for closing the opening of the lamp housing 2 (see FIGS. 1 to 3).

  The lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and the interior of the lamp outer casing 4 is formed as a lamp chamber 4a.

  An annular mounting groove 2 a opened forward is formed at the front end of the lamp housing 2.

  An arrangement base portion 5 is attached to the front surface of the rear surface portion of the lamp housing 2. A substrate 6 is attached to the front surface of the placement table 5, and a light source 7 is mounted on the substrate 6. As the light source 7, for example, a light emitting diode (LED) is used. In addition to the function of attaching the substrate 6, the arrangement table part 5 also functions as a heat sink that releases heat generated when the light source 7 is turned on.

  For example, the light source 7 is positioned above the center of the lamp housing 2 in the vertical direction, and the optical axis direction is the front-rear direction.

  The cover 3 has a resin molding part 8 in which each part is integrally formed of a transparent resin material, and a first coating film 9 and a second coating film 10 formed at predetermined positions of the resin molding part 8, respectively. ing.

  The resin molding part 8 includes a substantially disc-shaped cover part 11, an annular attached part 12 projecting rearward from the outer peripheral part of the cover part 11, and an annular attached part projecting outward from the outer peripheral surface of the attached part 12. It has the addressing part 13 and the collar part 14 protruded from the upper half part in the outer peripheral part of the cover part 11. The collar portion 14 is formed in a curved surface convex outward.

  The cover 3 is attached to the lamp housing 2 by, for example, adhesion or welding in a state where the attached portion 12 is inserted into the attachment groove 2a and the addressed portion 13 is abutted against the front surface of the lamp housing 2. By attaching the cover 3 to the lamp housing 2, the opening of the lamp housing 2 is closed by the cover 3.

  The first coating film 9 is colored, for example, black, and is formed at a position extending from the surface of the collar portion 14 to the front surface of the destination portion 13. By forming the first coating film 9 on the surface of the collar part 14, the light emitted from the light source 7 and incident on the collar part 14 is shielded. Therefore, the collar portion 14 functions as the light shielding portion 15.

  The second coating film 10 is colored, for example, black, and is formed at a position extending from the front surface of the lower half portion of the cover portion 11 to the front surface of the destination portion 13. By forming the second coating film 10 on the front surface of the lower half portion of the cover portion 11, the light emitted from the light source 7 and incident on the lower half portion of the cover portion 11 is shielded. Accordingly, the lower half portion of the cover portion 11 functions as the light shielding portion 16.

  In the above, the first coating film 9 is formed at a position extending from the surface of the flange portion 14 to the front surface of the addressing portion 13, and the second coating film 10 is formed from the front surface of the lower half of the cover portion 11 to the addressing portion 13. Although the example formed in the position over the front surface of this was shown, in addition to these, the 1st coating film 9 and the 2nd coating film 10 may be formed in the outer peripheral surface of the address | destination part 13. FIG.

  The region above the light shielding portion 16 inside the portion of the cover portion 11 where the collar portion 14 is continuous is provided as a transmission portion 17 in which neither the first coating film 9 nor the second coating film 10 is formed. .

  The lower edge of the light shielding part 15 and the upper edge of the light shielding part 16 exist at the same position in the vertical direction. Therefore, when the shoulder lamp 1 is viewed from the front or from the upper oblique front, the transmission part 17 is made invisible, and generation of illusion light to the driver or pedestrian of the vehicle existing in the surroundings is generated. It is prevented.

  In the road shoulder lamp 1 configured as described above, the light emitted from the light source 7 is controlled as follows. As described above, the light source 7 is located above the center of the lamp housing 2 in the vertical direction and is located above the lower edge of the light shielding portion 15.

  When light is emitted from the light source 7, the light (A shown in FIG. 3) that reaches the light shielding portion 16 is shielded by the light shielding portion 16, is transmitted through the transmission portion 17, and reaches the light shielding portion 15 ( B) shown in FIG. 3 is shielded by the light shielding portion 15. On the other hand, when light is emitted from the light source 7, the light (C shown in FIG. 3) that has been transmitted through the transmission unit 17 and has not reached the light shielding unit 15 is irradiated to the road surface through the lower side of the light shielding unit 15. .

  In the above, an example in which the optical axis direction of the light source 7 is set to the front-rear direction is shown. However, for example, the light source 7 is arranged with the emission surface inclined downward, and the optical axis direction is inclined downward. The direction may be inclined in the direction.

  As described above, in the road shoulder lamp 1, the transmission part 17 and the light shielding part 15 are integrally formed, and the road surface is irradiated with at least a part of the light transmitted through the transmission part 17.

  Therefore, since both the shielding and transmission of the light emitted from the light source 7 are performed in the cover 3, the number of parts is reduced, and the manufacturing cost is reduced, and the irradiation state to the necessary area on the road surface is ensured. Can do. In particular, since the cover 3 is provided with the light shielding portion 15, it is not necessary to provide a shade for shielding the light emitted from the light source 7 as a separate part from the cover 3, and the number of parts of the road shoulder lamp 1 can be reduced and the manufacturing cost can be reduced. Can be reduced.

  Further, the cover 3 is provided with a collar portion 14 that functions as the light shielding portion 15 so as to cover the transmission portion 17 from the front of the lamp while being separated from the transmission portion 17.

  Therefore, since the light that has been transmitted through the transmission part 17 and directed toward the front side of the lamp is shielded by the collar part 14, it is possible to prevent generation of dazzling light for the driver or pedestrian existing on the front side of the lamp.

  Further, a light shielding part 16 that shields light emitted from the light source 7 is provided below the transmission part 17 in the cover 3.

  Therefore, since light is shielded by the light shielding unit 16 in addition to the light shielding unit 15, the degree of freedom in designing the irradiation range can be improved.

  In the above, the cover 3 having the resin molded portion 8, the first coating film 9, and the second coating film 10 is shown as an example. However, instead of the cover 3, the cover 3A in which each portion is formed by lamination molding. May be used (see FIG. 4).

  The cover 3 </ b> A has a resin molded portion 8, a first laminated portion 18, and a second laminated portion 19. The first laminated portion 18 and the second laminated portion 19 are formed at the same positions as the first coated film 9 and the second coated film 10 with respect to the resin molded portion 8, respectively, and are colored, for example, by a black resin material. It is formed by being laminated on the resin molding portion 8.

  By using such lamination molding, since the resin molding part 8, the first lamination part 18 and the second lamination part 19 are all formed by injection molding using a mold, the cover 3A having high moldability. Can be formed.

  The cover 3A may be formed by so-called two-color molding in which a transparent resin material and a colored (black) resin material are filled in a cavity of a mold and are integrally molded. It is possible to form the cover 3A having high moldability by two-color molding.

  Furthermore, 3B and 3C having the following protrusions may be used in place of the cover 3 (see FIGS. 5 and 6).

  The cover 3B has a resin molding part 8B in which each part is integrally formed of a transparent resin material, and a first coating film 9B and a second coating film 10B formed at predetermined positions of the resin molding part 8B, respectively. (See FIG. 5).

  A projecting portion 20 is provided in the resin molded portion 8B in place of the flange portion 14. The projecting portion 20 protrudes forward from the upper half of the cover portion 11, and has a projecting surface portion 21 formed in an outwardly convex curved shape and a lower surface portion 22 in which the front end portion is continuous with the lower end portion of the projecting surface portion 21. have. A space is formed in the projecting portion 20, and this space is formed as an arrangement space 20a.

  The first coating film 9 </ b> B is formed at a position extending from the surface of the projecting surface portion 21 to the front surface of the destination portion 13. Therefore, the projecting surface portion 21 functions as the light shielding portion 15B.

  The second coating film 10 </ b> B is formed at a position extending from the lower half front surface of the cover portion 11 to the front surface of the destination portion 13. Therefore, the lower half part of the cover part 11 functions as the light shielding part 16B.

  The first coating film 9 </ b> B and the second coating film 10 </ b> B may also be formed on the outer peripheral surface of the destination portion 13.

  The lower surface portion 22 of the protruding portion 20 is provided as a transmission portion 17B.

  The lower edge of the light shielding part 15B and the upper edge of the light shielding part 16B are present at the same position in the vertical direction. Therefore, when the shoulder lamp 1 is viewed from the front or viewed obliquely from the upper front, the transmission portion 17B is made invisible, and generation of illusion light to the driver or pedestrian of the vehicle existing in the vicinity is generated. It is prevented.

  In the roadside lamp 1 using the cover 3B, the arrangement base part 5 whose front end is located in the arrangement space 20a is provided. A substrate 6 is attached to the lower surface of the placement table 5, and a light source 7 is mounted on the substrate 6. The light source 7 is positioned above the transmission part 17B, and the optical axis direction is set to the vertical direction.

  In the shoulder lamp 1 provided with the cover 3B, when light is emitted from the light source 7, the light transmitted through the transmission part 17B and reaching the light shielding part 16B is shielded by the light shielding part 16B and is blocked by the light shielding part 15B. The reached light is shielded by the light shielding portion 15B. On the other hand, when the light is emitted from the light source 7, the light that has been transmitted through the transmission part 17B and has not reached the light shielding part 16B is irradiated onto the road surface.

  By using the cover 3B having the projecting portion 20 as described above, the light incident on the projecting portion 20 is shielded by the projecting surface portion 21 and transmitted through the lower surface portion 22. Therefore, the shape of the projecting portion 20 It is possible to easily control the irradiation direction of light by arbitrarily determining.

  The cover 3C has a resin molded portion 8C in which each portion is integrally formed of a transparent resin material, and a first coating film 9C and a second coating film 10C formed at predetermined positions of the resin molded portion 8C, respectively. (See FIG. 6).

  A protruding portion 23 is provided in the resin molded portion 8C in place of the flange portion 14. The projecting portion 23 projects forward from the upper half of the cover portion 11 and has a shape in which no space is formed inside. The projecting portion 23 is formed as a projecting surface 23a having a front surface formed into a curved surface convex outward, and the lower surface is formed as a transmission surface 23b.

  The first coating film 9 </ b> C is formed at a position extending from the projecting surface 23 a to the front surface of the destination portion 13. By forming the first coating film 9C on the surface of the projecting surface 23a, the light emitted from the light source 7 and incident on the projecting surface 23a is shielded. The first coating film 9C is made of a material that reflects light. Therefore, the light incident on the projecting surface 23a is blocked from traveling forward, but is reflected on the projecting surface 23a toward the transmitting surface 23b. The light reaching the transmission surface 23b is transmitted through the transmission surface 23b.

  The second coating film 10 </ b> C is formed at a position extending from the lower half front surface of the cover portion 11 to the front surface of the destination portion 13. Therefore, the lower half part of the cover part 11 functions as the light shielding part 16C.

  The first coating film 9C and the second coating film 10C may also be formed on the outer peripheral surface of the destination portion 13.

  As described above, in the cover 3C, the light incident on the projecting portion 23 is shielded by the projecting portion 23 and transmitted from the projecting portion 23. Therefore, the projecting portion 23 functions as the light shielding portion 15C. It also functions as the transmission part 17C.

  The lower edge of the light shielding part 15C and the upper edge of the light shielding part 16C are present at the same position in the vertical direction. Therefore, when the shoulder lamp 1 is viewed from the front or viewed obliquely from above, the transmissive portion 17C is made invisible, and generation of illusion light to the driver or pedestrian of the vehicle existing in the surroundings is generated. It is prevented.

  In the shoulder lamp 1 provided with the cover 3C, when light is emitted from the light source 7, the light reaching the light shielding part 16C is shielded by the light shielding part 16C, and the light reaching the light shielding part 15C is blocked by the light shielding part 15C. And is reflected toward the road surface via the transmission surface 23b by the projecting surface 23a that functions as a reflection surface. Accordingly, the light reaching the light shielding portion 15C is irradiated onto the road surface. On the other hand, when light is emitted from the light source 7, the light that has reached the transmission surface 23b without passing through the projection surface 23a is transmitted through the transmission surface 23b and irradiated onto the road surface.

  By using the cover 3C having the protrusion 23 as described above, the light incident on the protrusion 23 is shielded by the protrusion 23a and transmitted through the transmission surface 23b. It is possible to easily control the irradiation direction of light by arbitrarily determining.

  In addition, a protruding surface 23 a that functions as a reflecting surface that reflects light emitted from the light source 7 toward the road surface is formed on the protruding portion 23.

  Accordingly, since both the light directed to the projecting surface 23a and the light directed to the transmission surface 23b without passing through the projecting surface 23a are irradiated to the road surface, the luminance is improved by the effective use of the light and the irradiation area is wide. Can be achieved.

  Note that, in the shoulder lamp 1 provided with the covers 3A, 3B, and 3C, the optical axis direction of the light source 7 may be inclined so as to be inclined with respect to the front-rear direction or the vertical direction.

  Further, in the covers 3, 3B, and 3C, similarly to the cover 3, in order to shield the light, it is also possible to use lamination molding or two-color molding instead of painting.

  DESCRIPTION OF SYMBOLS 1 ... Road shoulder lamp, 2 ... Lamp housing, 3 ... Cover, 4 ... Lamp outer casing, 4a ... Light chamber, 7 ... Light source, 14 ... Gutter part, 15 ... Light-shielding part, 16 ... Light shielding part, 17 ... Transmission part, 3A ... Cover, 3B ... Cover, 15B ... Light shielding part, 16B ... Light shielding part, 20 ... Projection part, 21 ... Projection surface part, 22 ... Bottom surface part, 3C ... Cover, 15C ... Light shielding part, 16C ... Light shielding part, 23 ... Projection, 23a ... Projection surface (reflection surface)

Claims (5)

A lamp housing having an opening;
A light source that emits light;
A cover having a transmission part through which light emitted from the light source is transmitted and a light shielding part for shielding light emitted from the light source, wherein the transmission part and the light shielding part are integrally formed and the opening is closed. And
A road lamp in which a road surface is irradiated with at least a part of light transmitted through the transmission part. The roadside lamp according to claim 1, wherein the cover is provided with a flange that covers the transmission portion from the front of the lamp in a state of being separated from the transmission portion and functions as the light shielding portion. The cover is provided with a protruding portion protruding to the front side of the lamp,
The projecting portion is formed with a projecting surface portion located on the front side of the lamp and a lower surface portion continuous with a lower end portion of the projecting surface portion,
The protruding surface portion is provided as the light shielding portion,
The road shoulder lamp according to claim 1, wherein the lower surface portion is provided as the transmission portion. The cover is provided with a protruding portion protruding to the front side of the lamp,
The road shoulder lamp according to claim 1, wherein a reflection surface that reflects light emitted from the light source toward a road surface is formed on the protruding portion. The road shoulder lamp according to claim 1, 2, 3, or 4, wherein a light shielding portion that shields light emitted from the light source is provided below the transmission portion of the cover.

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