WO2023199739A1 - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

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Publication number
WO2023199739A1
WO2023199739A1 PCT/JP2023/012475 JP2023012475W WO2023199739A1 WO 2023199739 A1 WO2023199739 A1 WO 2023199739A1 JP 2023012475 W JP2023012475 W JP 2023012475W WO 2023199739 A1 WO2023199739 A1 WO 2023199739A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
lens
control lens
heat sink
light source
Prior art date
Application number
PCT/JP2023/012475
Other languages
French (fr)
Japanese (ja)
Inventor
将志 寺本
修平 野末
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2023199739A1 publication Critical patent/WO2023199739A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes

Definitions

  • the present invention relates to the technical field of a vehicular lamp in which a first member and a second member are attached to a base body by screwing.
  • a vehicular lamp configured such that light emitted from a light source is controlled by an optical member such as a shade and irradiated to the outside (see, for example, Patent Document 1).
  • an optical member such as a shade and irradiated to the outside
  • a plurality of light sources are mounted on a board spaced apart in a predetermined direction, and the light emitted from each light source is controlled by a shade or the like and irradiated to the outside.
  • an optical member is attached and various members for holding the optical member are provided, so it is necessary to improve the positional accuracy between these members to improve the quality of the light emitted from the light source. It is necessary to ensure a suitable light distribution condition.
  • an object of the present invention is to improve the positional accuracy between each member and to improve the workability in the work of attaching each member.
  • the vehicular lamp according to the present invention is a vehicular lamp that irradiates light emitted from a light source, and includes a first member having a holding part and a screw fixing part, and one member having a screw insertion hole in the thickness direction.
  • a base body having one surface formed as a mounting surface and the other surface formed as a working surface, and a second member pressed toward the mounting surface side in the optical axis direction of the light source by the holding part, and the mounting screw is fixed to the base body.
  • the first member and the second member are inserted into the screw insertion hole from the work surface side and screwed to the screwed part, and the first member and the second member have a gap between the screwed part and the mounting surface. In this state, it is attached to the base body using the attachment screw.
  • the first member and the second member are attached to the base body by the attachment screws inserted into the screw insertion holes from the work surface side while the second member is pressed against the attachment surface side by the holding portion.
  • the first member and the second member are attached to the base body by the mounting screw inserted into the screw insertion hole from the work surface side while the second member is pressed against the mounting surface side by the holding portion. Since it is attached, it is possible to improve the positional accuracy between the second member and the base body, and it is also possible to improve the workability in the work of attaching the first member and the second member to the base body.
  • FIG. 2 is an exploded perspective view showing the internal structure of the vehicle lamp.
  • FIG. 3 is an exploded perspective view showing the internal structure of the vehicle lamp as seen from a direction different from that shown in FIG. 2.
  • FIG. 3 is a cross-sectional view schematically showing a state in which the first unit is attached to a heat sink.
  • FIG. 3 is a cross-sectional view schematically showing a state in which the second unit is attached to a heat sink.
  • the vehicle lamp of the present invention is applied to a headlamp.
  • the present invention can be widely applied to various vehicle lamps other than headlamps.
  • the direction in which light is irradiated to the outside is assumed to be the front, and the front, back, top, bottom, left, and right directions are indicated.
  • the directions of front, rear, top, bottom, left and right shown below are for convenience of explanation, and the implementation of the present invention is not limited to these directions.
  • the vehicle lamp 1 is, for example, a type that is attached to both the left and right ends of the vehicle body and has a direct optical system that does not have a reflector or the like to reflect light and radiates the light to the outside as direct light. It is a light fixture.
  • the vehicular lamp 1 has a lamp housing 2 having an opening at the front end and a cover 3 that closes the opening of the lamp housing 2 (see FIG. 1).
  • the lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and the interior space of the lamp outer casing 4 is used as a lamp chamber.
  • the lamp chamber has a heat sink 5 provided as a base body, a first unit 6 attached to the heat sink 5, and a second unit 7 attached to the heat sink 5 (see FIGS. 1 to 3).
  • the heat sink 5 is made of a metal material with high thermal conductivity, and includes a mounting surface section 8 facing in the front-rear direction and a plurality of projecting surface sections 9 protruding rearward from both upper and lower ends of the mounting surface section 8, respectively.
  • the heat sink 5 is attached, for example, to a not-illustrated bracket placed in the light chamber by screwing or the like.
  • first screw insertion holes 8a are formed in the mounting surface portion 8 so as to be spaced apart from each other in the left and right directions.
  • two first insertion holes 8b are formed spaced apart from each other in the left and right directions, and the first insertion hole 8b is located above the first screw insertion hole 8a.
  • three second screw insertion holes 8c are formed in the mounting surface portion 8.
  • the second screw insertion holes 8c are located, for example, at the upper end of the central portion in the left-right direction and at both left and right ends near the lower end.
  • two second insertion holes 8d are formed at the lower end portion, spaced apart from each other in the left and right directions.
  • two third insertion holes 8e are formed in the mounting surface portion 8 at diagonal ends.
  • the mounting surface portion 8 has a front surface formed as a mounting surface 10 and a rear surface formed as a work surface 11.
  • the first unit 6 is attached to the attachment surface 10 of the attachment surface portion 8 by screwing.
  • the first unit 6 is composed of a shade 12, a control lens 13, and a substrate 14.
  • the shade 12 is provided as a first member in the first unit 6, and the control lens 13 is provided as a second member in the first unit 6.
  • the substrate 14 is provided as the third member in the first unit 6.
  • the shade 12 is formed in a horizontally elongated shape and has a plurality of transmission holes 12a arranged on the left and right.
  • Relief notches 12b are formed at the lower end of both left and right ends of the shade 12, respectively.
  • the relief notch 12b is opened outward and downward in the left-right direction.
  • First screw fixing portions 15 that protrude rearward are provided at both left and right ends of the shade 12, respectively.
  • the first screw portion 15 is opened rearward and has a threaded groove 15a on its inner peripheral surface.
  • the shade 12 is provided with positioning protrusions 16 that protrude rearward at both left and right ends, respectively.
  • the shade 12 is provided with a plurality of first pressing portions 17 each of which is convex toward the rear.
  • the first holding portions 17 are provided at both left and right ends of the shade 12 and at the center in the left and right direction.
  • the control lens 13 is formed of a transparent resin material into a horizontally elongated shape, and has a plurality of control portions 13a that are convex toward the front. At both left and right ends of the control lens 13, insertion notches 13b are formed which are open laterally and outward.
  • Positioning protrusions 18 that protrude rearward are provided at positions near the upper end of both the left and right ends of the control lens 13, respectively.
  • a positioning hole 19 is formed at both left and right ends of the control lens 13 at approximately the center in the vertical direction.
  • a position holding hole 20 is formed at the lower end of both left and right ends of the control lens 13 .
  • the control lens 13 is provided with a plurality of pressing portions 21 each of which is convex toward the rear. For example, four pressing portions 21 are provided and are spaced apart from each other vertically and horizontally.
  • a surface (rear surface) of the control lens 13 from which the positioning projection 18 and the pressing portion 21 are projected is formed as an opposing surface 13c.
  • the substrate 14 is formed in a horizontally long shape. Positioning holes 22 are formed at both left and right ends of the substrate 14 . Screw holes 23 are formed at both left and right ends of the substrate 14 , and the screw holes 23 are located below the alignment holes 22 .
  • a plurality of light sources 24 are mounted on the front surface of the substrate 14, for example, spaced apart from each other left and right.
  • a connector (not shown) is connected to the front surface of the board 14, and the connector is connected via a cable to a control unit (not shown) having a light-on/off circuit. Therefore, the light sources 24 are individually controlled by the on/off circuits.
  • the second unit 7 is attached to the attachment surface 10 of the attachment surface section 8 by screwing.
  • the second unit 7 is composed of a lens holder 25 and a projection lens 26, the lens holder 25 is provided as a first member in the second unit 7, and the projection lens 26 is provided as a second member in the second unit 7. It is provided.
  • the lens holder 25 is formed into a horizontally long frame shape and has a horizontally long insertion hole 25a.
  • the lens holder 25 is provided with, for example, three second screw fixing parts 27 that respectively protrude rearward.
  • the second screw fixing portion 27 is opened rearward and has a threaded groove 27a on its inner peripheral surface.
  • the second screw fixing portions 27 are provided at both left and right ends of the lens holder 25 and at the upper end at the center in the left and right direction. Insertion pins 28 protruding rearward are provided at the lower ends of both left and right ends of the lens holder 25, respectively.
  • the lens holder 25 is provided with four rearwardly convex second holding parts 29 spaced apart from each other vertically and horizontally.
  • the projection lens 26 is made of a transparent resin material, and includes a lens portion 30 formed in a horizontally elongated substantially rectangular shape and mounting protrusions 31 that protrude rearward from each of the four corners of the lens portion 30. There is.
  • the projection lens 26 is provided with positioning pins 32 that protrude rearward from the tip surfaces of the two lower mounting protrusions 31, respectively.
  • the projection lens 26 is provided with a plurality of rearwardly convex pressing protrusions 33, respectively.
  • the pressing protrusions 33 for example, respectively protrude rearward from the tip surfaces of the four attached protrusions 31.
  • the shade 12 and the substrate 14 are positioned with respect to the control lens 13 in a direction perpendicular to the optical axis direction.
  • the positioning of the shade 12 with respect to the control lens 13 is performed by inserting the positioning protrusion 16 of the shade 12 into the positioning hole 19 of the control lens 13 from the front side, and the positioning of the substrate 14 with respect to the control lens 13 is performed by aligning the control lens 13. This is done by inserting the protrusion 18 into the alignment hole 22 of the substrate 14 from the front side. Therefore, in the first unit 6, positioning of the shade 12 and the substrate 14 in a direction perpendicular to the optical axis direction is performed using the control lens 13 as a reference.
  • the first unit 6 positioned as described above is attached to the heat sink 5 by the first mounting screw 50 with the alignment protrusion 18 of the control lens 13 inserted into the first insertion hole 8b of the heat sink 5 ( (See Figures 2 to 4).
  • the substrate 14 is pressed from the front side by the pressing portion 21 of the control lens 13 and the substrate 14 is pressed against the mounting surface 10 of the heat sink 5 .
  • 17 presses the control lens 13 from the front side and presses the pressing portion 21 against the substrate 14 (see FIG. 4).
  • the first screwed part 15 of the shade 12 is positioned opposite to the part of the board 14 where the screw hole 23 is formed through the insertion notch 13b of the control lens 13.
  • a gap H1 is created between the front end surface of the substrate 14 and the front surface of the substrate 14. Further, at this time, a gap H2 is created between the opposing surface 13c of the control lens 13 and the mounting surface 10.
  • the first mounting screw 50 is attached to the work surface 11 side (rear side).
  • the first unit 6 is inserted into the first screw insertion hole 8a of the heat sink 5 and the screw hole 23 of the board 14 and screwed into the thread groove 15a of the first screw fixing part 15, so that the first unit 6 is attached to the heat sink 5.
  • a tapping screw is used as the first mounting screw 50
  • a screw fastening part without a thread groove is provided as the first screw fastening part 15
  • the first mounting screw 50 is a self-tapping screw. may be tapped into the screwed part.
  • the first mounting screw 50 is screwed into the threaded groove 15a with the gap H1 created between the first screwed part 15 and the board 14 in this way, the first holding part 17 of the shade 12 is It is reliably pressed against the control lens 13. Furthermore, since the first mounting screw 50 is screwed into the threaded groove 15a with a gap H2 created between the opposing surface 13c and the mounting surface 10, the pressing portion 21 of the control lens 13 is reliably pressed against the substrate 14. The substrate 14 is reliably pressed against the mounting surface 10 of the heat sink 5.
  • the substrate 14 may be attached to the mounting surface 10 of the heat sink 5 using a sheet having thermal conductivity and insulation properties, for example, an adhesive sheet. Since the substrate 14 is attached to the heat sink 5 with a thermally conductive sheet, the heat generated when the light source 24 is turned on is efficiently transferred to the heat sink 5 and released to the outside, thereby increasing the temperature of the light source 24 and the substrate 14. It is possible to suppress this and ensure good operating conditions of the light source 24 and the substrate 14.
  • the projection lens 26 of the second unit 7 is positioned with respect to the control lens 13 of the first unit 6 in a direction perpendicular to the optical axis direction.
  • the positioning of the projection lens 26 with respect to the control lens 13 is performed by inserting the positioning pin 32 of the projection lens 26 into the position holding hole 20 of the control lens 13 from the front through the relief notch 12b of the shade 12. Therefore, in the vehicular lamp 1, positioning of the shade 12 and the substrate 14 as well as the projection lens 26 in a direction perpendicular to the optical axis direction is performed using the control lens 13 as a reference.
  • the projection lens 26 positioned as described above is arranged by inserting the positioning pin 32 into the second insertion hole 8d of the heat sink 5, and inserting the lens part 30 into the insertion hole 25a of the lens holder 25 from the rear side. , is attached to the heat sink 5 together with the lens holder 25 by a second attachment screw 60 (see FIGS. 2, 3, and 5).
  • the insertion pin 28 of the lens holder 25 is inserted into the third insertion hole 8e of the heat sink 5, and the second The projection lens 26 is pressed from the front side by the holding part 29, and the pressing protrusion 33 is pressed against the mounting surface 10 of the heat sink 5 (see FIG. 5).
  • the second screw fixing part 27 of the lens holder 25 is positioned opposite to the part of the heat sink 5 in which the second screw insertion hole 8c is formed, and the tip surface of the second screw fixing part 27 and the heat sink 5 A gap H3 is created between the mounting surface 10 and the mounting surface 10.
  • the second mounting screw 60 is inserted into the second screw insertion hole 8c of the heat sink 5 from the work surface 11 side (rear side).
  • the second unit 7 is attached to the heat sink 5 by being screwed into the threaded groove 27a of the second screw portion 27.
  • a tapping screw is used as the second mounting screw 60
  • a screw fastening part without a thread groove is provided as the second screw fastening part 27, and the second mounting screw 60 is a self-tapping screw. may be tapped into the screwed part.
  • the second mounting screw 60 is screwed into the threaded groove 27a with the gap H3 created between the second screw fixing part 27 and the heat sink 5, the second holding part 29 of the lens holder 25 is reliably pressed against the projection lens 26. Therefore, high positional accuracy in the optical axis direction between the lens holder 25, the projection lens 26, and the heat sink 5 is ensured.
  • the light emitted from the light source 24 is controlled by the control unit 13a of the control lens 13, and is controlled to become parallel light by the lens unit 30 of the projection lens 26. is transmitted and irradiated to the outside. At this time, a part of the light is blocked by the shade 12 and is irradiated to the outside with an appropriate light distribution pattern.
  • positional accuracy is particularly important between the four members: the projection lens 26 that controls the light, the control lens 13, the shade 12 that blocks the light, and the board 14 on which the light source 24 is mounted.
  • the first mounting screw 50 is inserted into the first screw insertion hole 8a from the work surface 11 side of the heat sink 5 provided as a base body and is screwed into the first screw fixing part 15.
  • the shade 12 provided as the first member and the control lens 13 provided as the second member have a gap H1 between the first screwed part 15 and the mounting surface 10 of the heat sink 5. It is attached to the heat sink 5 by a first attachment screw 50 .
  • the shade 12 is controlled by the first mounting screw 50 inserted into the first screw insertion hole 8a from the work surface 11 side.
  • a lens 13 is attached to the heat sink 5.
  • the second mounting screw 60 is inserted into the second screw insertion hole 8c from the work surface 11 side of the heat sink 5 provided as a base body.
  • the lens holder 25 provided as the first member and the projection lens 26 provided as the second member are screwed together to the second screwed part 27 and the mounting surface of the second screwed part 27 and the heat sink 5. It is attached to the heat sink 5 with a second attachment screw 60 with a gap H3 between it and the heat sink 10 .
  • the lens holder 25 is attached to the second mounting screw 60 inserted into the second screw insertion hole 8c from the working surface 11 side.
  • the projection lens 26 is attached to the heat sink 5.
  • the first mounting screw 50 and the second mounting screw 60 are screwed while the first unit 6 and the second unit 7 are positioned on the mounting surface 10 side of the heat sink 5.
  • the first unit 6 and the second unit 7 are attached to the heat sink 5 from the work surface 11 side of the heat sink 5 using the heat sink 5. Therefore, it is possible to perform the installation work of the first unit 6 and the second unit 7 to the heat sink 5 successively from the same direction, and the installation work can be performed easily and quickly, which improves work efficiency in the installation work. It is possible to improve the
  • the control lens 13 provided as the second member is provided with a pressing portion 21 that presses the substrate 14 provided as the third member against the mounting surface 10 in the optical axis direction of the light source 24.
  • the shade 12, control lens 13, and substrate 14 are attached to the heat sink 5 with a gap H2 between the opposing surface 13c of the control lens 13 and the mounting surface 10. Since the shade 12, the control lens 13, and the substrate 14 are attached to the heat sink 5 with the control lens 13 being pressed and the substrate 14 being pressed by the pressing part 21, the optical axis direction of the control lens 13 and the substrate 14 with respect to the heat sink 5 is High positional accuracy can be ensured.
  • the shade 12 is provided with a positioning protrusion 16
  • the control lens 13 is provided with a positioning protrusion 18
  • the control lens 13 is provided with a positioning hole 19 into which the positioning protrusion 16 is inserted
  • the substrate 14 is provided with a positioning protrusion 16 .
  • An alignment hole 22 into which the alignment protrusion 18 is inserted is formed.
  • control lens 13 that controls the light emitted from the light source 24 is used as the second member
  • shade 12 that blocks part of the light controlled by the control lens 13 is used as the first member
  • 3 a substrate 14 on which a light source 24 is mounted is used.
  • the shade 12 and the substrate 14 are positioned separately on the control lens 13, the positional accuracy of the control lens 13, the shade 12, and the light source 24 in the direction orthogonal to the optical axis direction is improved, and the light emitted from the light source 24 is Appropriate control and shielding can be performed.
  • control lens 13 is formed with a position holding hole 20 into which the positioning pin 32 of the projection lens 26 is inserted, the substrate 14, shade 12, and projection lens 26 are positioned with respect to the control lens 13, and the optical axis is aligned. High positional accuracy between the control lens 13, the substrate 14, the shade 12, and the projection lens 26 can be ensured in the direction perpendicular to the direction.
  • the positioning protrusion 16 is provided on the shade 12 and the positioning hole 19 is formed on the control lens 13 is shown above, conversely, the positioning hole is formed on the shade and the positioning protrusion is provided on the control lens. may be provided.
  • the control lens 13 is provided with the alignment protrusion 18 and the substrate 14 is formed with the alignment hole 22, conversely, the control lens is formed with an alignment hole and the substrate is formed with the alignment hole 22.
  • a mating protrusion may be provided.
  • the projection lens 26 is provided with the positioning pin 32 and the control lens 13 is provided with the position holding hole 20, but conversely, the projection lens is provided with a position holding hole and the control lens is provided with the position holding hole 20.
  • a pin may also be provided.
  • SYMBOLS 1 Vehicle lamp, 5... Heat sink (base body), 8a... First screw insertion hole, 8c... Second screw insertion hole, 10... Mounting surface, 11... Work surface, 12... Shade (first member) ), 13... Control lens (second member), 14... Substrate (third member), 15... First screw fixing part, 16... Positioning protrusion, 17... First holding part, 18... Positioning Projection, 19... Positioning hole, 20... Position holding hole, 21... Pressing part, 22... Positioning hole, 23... Screw hole, 24... Light source, 25... Lens holder (first member), 26... Projection lens (Second member), 27... Second screw fixing part, 28... Insertion pin, 29... Second holding part, 32... Positioning pin, 50... First mounting screw, 60... Second mounting screw

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A vehicle lamp comprising: a first member which has a retaining part and a screw-fastening part; a base which has a screw insertion hole, and in which one surface in the thickness direction is formed as an attaching surface and the other surface is formed as a working surface; and a second member retained, by the retaining part, against the attaching surface-side in a light source optical axis direction, wherein an attaching screw screws into the screw-fastening part when inserted into the screw insertion hole from the working surface, and the first member and the second member are attached to the base by means of the attaching screw in a state in which there is a gap between the screw-fastening part and the attaching surface.

Description

車輌用灯具Vehicle lights
　本発明は第１の部材と第２の部材がネジ止めによってベース体に取り付けられる車輌用灯具についての技術分野に関する。 The present invention relates to the technical field of a vehicular lamp in which a first member and a second member are attached to a base body by screwing.
　光源から出射された光がシェード等の光学部材によって制御され、外部へ向けて照射されるように構成された車輌用灯具がある（例えば、特許文献１参照）。特許文献１に記載された車輌用灯具においては、基板に所定の方向に離隔して複数の光源が搭載され、各光源から出射された光がシェード等によって制御されて外部へ向けて照射される。 There is a vehicular lamp configured such that light emitted from a light source is controlled by an optical member such as a shade and irradiated to the outside (see, for example, Patent Document 1). In the vehicular lamp described in Patent Document 1, a plurality of light sources are mounted on a board spaced apart in a predetermined direction, and the light emitted from each light source is controlled by a shade or the like and irradiated to the outside. .
特開２０１４－２４３９９号公報Japanese Patent Application Publication No. 2014-24399
　ところで、上記のような車輌用灯具においては、光学部材が取り付けられたり光学部材を保持する各種の部材が設けられるため、これらの各部材間の位置精度を高めて光源から出射される光の良好な配光状態を確保する必要がある。 By the way, in the above-mentioned vehicle lamp, an optical member is attached and various members for holding the optical member are provided, so it is necessary to improve the positional accuracy between these members to improve the quality of the light emitted from the light source. It is necessary to ensure a suitable light distribution condition.
　また、光学部材を含めたこれらの各部材の取付作業において取付ネジを用いた場合に、取付作業における作業性の向上が図られることが望ましい。 Furthermore, when mounting screws are used in the mounting work of each of these members including the optical member, it is desirable that workability in the mounting work be improved.
　そこで、本発明は、各部材間の位置精度を高めると共に各部材の取付作業における作業性の向上を図ることを目的とする。 Therefore, an object of the present invention is to improve the positional accuracy between each member and to improve the workability in the work of attaching each member.
　本発明に係る車輌用灯具は、光源から出射された光を照射する車輌用灯具であって、押さえ部とネジ止め部を有する第１の部材と、ネジ挿通孔を有し厚み方向における一方の面が取付面として形成され他方の面が作業面として形成されたベース体と、前記押さえ部によって前記光源の光軸方向において前記取付面側に押さえられる第２の部材とを備え、取付ネジが前記作業面側から前記ネジ挿通孔に挿通された状態で前記ネジ止め部に螺合され、前記第１の部材と前記第２の部材が前記ネジ止め部と前記取付面の間に隙間を有した状態において前記取付ネジによって前記ベース体に取り付けられるものである。 The vehicular lamp according to the present invention is a vehicular lamp that irradiates light emitted from a light source, and includes a first member having a holding part and a screw fixing part, and one member having a screw insertion hole in the thickness direction. A base body having one surface formed as a mounting surface and the other surface formed as a working surface, and a second member pressed toward the mounting surface side in the optical axis direction of the light source by the holding part, and the mounting screw is fixed to the base body. The first member and the second member are inserted into the screw insertion hole from the work surface side and screwed to the screwed part, and the first member and the second member have a gap between the screwed part and the mounting surface. In this state, it is attached to the base body using the attachment screw.
　これにより、第２の部材が押さえ部によって取付面側に押さえられた状態においてネジ挿通孔に作業面側から挿通される取付ネジによって第１の部材と第２の部材がベース体に取り付けられる。 As a result, the first member and the second member are attached to the base body by the attachment screws inserted into the screw insertion holes from the work surface side while the second member is pressed against the attachment surface side by the holding portion.
　本発明によれば、第２の部材が押さえ部によって取付面側に押さえられた状態においてネジ挿通孔に作業面側から挿通される取付ネジによって第１の部材と第２の部材がベース体に取り付けられるため、第２の部材とベース体の間の位置精度を高めることができると共に第１の部材と第２の部材のベース体に対する取付作業における作業性の向上を図ることができる。 According to the present invention, the first member and the second member are attached to the base body by the mounting screw inserted into the screw insertion hole from the work surface side while the second member is pressed against the mounting surface side by the holding portion. Since it is attached, it is possible to improve the positional accuracy between the second member and the base body, and it is also possible to improve the workability in the work of attaching the first member and the second member to the base body.
図２乃至図５と共に本発明車輌用灯具の実施の形態を示すものであり、本図は、車輌用灯具の斜視図である。An embodiment of the vehicle lamp of the present invention is shown together with FIGS. 2 to 5, and this figure is a perspective view of the vehicle lamp. 車輌用灯具の内部構造を示す分解斜視図である。FIG. 2 is an exploded perspective view showing the internal structure of the vehicle lamp. 車輌用灯具の内部構造を図２とは異なる方向から見た状態で示す分解斜視図である。FIG. 3 is an exploded perspective view showing the internal structure of the vehicle lamp as seen from a direction different from that shown in FIG. 2. FIG. 第１のユニットがヒートシンクに取り付けられた状態を模式的に示す断面図である。FIG. 3 is a cross-sectional view schematically showing a state in which the first unit is attached to a heat sink. 第２のユニットがヒートシンクに取り付けられた状態を模式的に示す断面図である。FIG. 3 is a cross-sectional view schematically showing a state in which the second unit is attached to a heat sink.
　以下に、本発明車輌用灯具を実施するための形態について添付図面を参照して説明する。 Hereinafter, embodiments for implementing the vehicle lamp of the present invention will be described with reference to the accompanying drawings.
　以下に示した実施の形態は、本発明車輌用灯具をヘッドランプに適用したものである。但し、本発明はヘッドランプ以外の各種の車輌用灯具に広く適用することができる。 In the embodiment shown below, the vehicle lamp of the present invention is applied to a headlamp. However, the present invention can be widely applied to various vehicle lamps other than headlamps.
　以下の説明にあっては、光の外部への照射方向を前方として前後上下左右の方向を示すものとする。但し、以下に示す前後上下左右の方向は説明の便宜上のものであり、本発明の実施に関しては、これらの方向に限定されることはない。 In the following description, the direction in which light is irradiated to the outside is assumed to be the front, and the front, back, top, bottom, left, and right directions are indicated. However, the directions of front, rear, top, bottom, left and right shown below are for convenience of explanation, and the implementation of the present invention is not limited to these directions.
　車輌用灯具１は、例えば、車体の左右両端部にそれぞれ取り付けられて配置され、光を反射するリフレクター等を有さず光が直射光として外部へ向けて照射される直射光学系を有するタイプの灯具である。 The vehicle lamp 1 is, for example, a type that is attached to both the left and right ends of the vehicle body and has a direct optical system that does not have a reflector or the like to reflect light and radiates the light to the outside as direct light. It is a light fixture.
　車輌用灯具１は前端に開口を有するランプハウジング２とランプハウジング２の開口を閉塞するカバー３とを有している（図１参照）。ランプハウジング２とカバー３によって灯具外筐４が構成され、灯具外筐４の内部空間が灯室とされている。 The vehicular lamp 1 has a lamp housing 2 having an opening at the front end and a cover 3 that closes the opening of the lamp housing 2 (see FIG. 1). The lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and the interior space of the lamp outer casing 4 is used as a lamp chamber.
　灯室にはベース体として設けられたヒートシンク５とヒートシンク５に取り付けられる第１のユニット６とヒートシンク５に取り付けられる第２のユニット７と有している（図１乃至図３参照）。 The lamp chamber has a heat sink 5 provided as a base body, a first unit 6 attached to the heat sink 5, and a second unit 7 attached to the heat sink 5 (see FIGS. 1 to 3).
　ヒートシンク５は熱伝導性の高い金属材料によって形成され、前後方向を向く取付面部８と取付面部８の上下両端部からそれぞれ後方に突出された複数の突面部９とによって構成されている。ヒートシンク５は、例えば、灯室に配置される図示しないブラケットにネジ止め等によって取り付けられる。 The heat sink 5 is made of a metal material with high thermal conductivity, and includes a mounting surface section 8 facing in the front-rear direction and a plurality of projecting surface sections 9 protruding rearward from both upper and lower ends of the mounting surface section 8, respectively. The heat sink 5 is attached, for example, to a not-illustrated bracket placed in the light chamber by screwing or the like.
　取付面部８には、例えば、二つの第１のネジ挿通孔８ａが左右に離隔して形成されている。取付面部８には、例えば、二つの第１の挿入孔８ｂが左右に離隔して形成され、第１の挿入孔８ｂは第１のネジ挿通孔８ａの上側に位置されている。取付面部８には、例えば、三つの第２のネジ挿通孔８ｃが形成されている。第２のネジ挿通孔８ｃは、例えば、それぞれ左右方向における中央部の上端部と下端寄りの位置における左右両端部とに位置されている。取付面部８には、例えば、二つの第２の挿入孔８ｄが下端部において左右に離隔して形成されている。取付面部８には、例えば、二つの第３の挿入孔８ｅが対角の端部に形成されている。 For example, two first screw insertion holes 8a are formed in the mounting surface portion 8 so as to be spaced apart from each other in the left and right directions. In the mounting surface portion 8, for example, two first insertion holes 8b are formed spaced apart from each other in the left and right directions, and the first insertion hole 8b is located above the first screw insertion hole 8a. For example, three second screw insertion holes 8c are formed in the mounting surface portion 8. The second screw insertion holes 8c are located, for example, at the upper end of the central portion in the left-right direction and at both left and right ends near the lower end. In the mounting surface portion 8, for example, two second insertion holes 8d are formed at the lower end portion, spaced apart from each other in the left and right directions. For example, two third insertion holes 8e are formed in the mounting surface portion 8 at diagonal ends.
　取付面部８は前面が取付面１０として形成され後面が作業面１１として形成されている。 The mounting surface portion 8 has a front surface formed as a mounting surface 10 and a rear surface formed as a work surface 11.
　第１のユニット６は取付面部８の取付面１０にネジ止めによって取り付けられる。第１のユニット６はシェード１２と制御レンズ１３と基板１４によって構成され、シェード１２は第１のユニット６における第１の部材として設けられ、制御レンズ１３は第１のユニット６における第２の部材として設けられ、基板１４は第１のユニット６における第３の部材として設けられている。 The first unit 6 is attached to the attachment surface 10 of the attachment surface portion 8 by screwing. The first unit 6 is composed of a shade 12, a control lens 13, and a substrate 14. The shade 12 is provided as a first member in the first unit 6, and the control lens 13 is provided as a second member in the first unit 6. The substrate 14 is provided as the third member in the first unit 6.
　シェード１２は横長の形状に形成され、左右に並ぶ複数の透過孔１２ａを有している。シェード１２の左右両端部における下端部にはそれぞれ逃げ切欠１２ｂが形成されている。逃げ切欠１２ｂは左右方向における外方と下方に開口されている。 The shade 12 is formed in a horizontally elongated shape and has a plurality of transmission holes 12a arranged on the left and right. Relief notches 12b are formed at the lower end of both left and right ends of the shade 12, respectively. The relief notch 12b is opened outward and downward in the left-right direction.
　シェード１２の左右両端部にはそれぞれ後方に突出された第１のネジ止め部１５が設けられている。第１のネジ止め部１５は後方に開口され内周面に螺溝１５ａを有している。シェード１２には左右両端部にそれぞれ後方に突出された位置決め突部１６が設けられている。シェード１２にはそれぞれ後方に凸の複数の第１の押さえ部１７が設けられている。第１の押さえ部１７はシェード１２の左右両端部と左右方向における中央部とに設けられている。 First screw fixing portions 15 that protrude rearward are provided at both left and right ends of the shade 12, respectively. The first screw portion 15 is opened rearward and has a threaded groove 15a on its inner peripheral surface. The shade 12 is provided with positioning protrusions 16 that protrude rearward at both left and right ends, respectively. The shade 12 is provided with a plurality of first pressing portions 17 each of which is convex toward the rear. The first holding portions 17 are provided at both left and right ends of the shade 12 and at the center in the left and right direction.
　制御レンズ１３は透明な樹脂材料によって横長の形状に形成され、前方に凸の複数の制御部１３ａを有している。制御レンズ１３の左右両端部にはそれぞれ側方における外方に開口された挿通用切欠１３ｂが形成されている。 The control lens 13 is formed of a transparent resin material into a horizontally elongated shape, and has a plurality of control portions 13a that are convex toward the front. At both left and right ends of the control lens 13, insertion notches 13b are formed which are open laterally and outward.
　制御レンズ１３の左右両端部における上端寄りの位置にはそれぞれ後方に突出された位置合わせ突部１８が設けられている。制御レンズ１３の左右両端部には上下方向における略中央部に位置決め孔１９が形成されている。制御レンズ１３の左右両端部における下端部には位置保持孔２０が形成されている。制御レンズ１３にはそれぞれ後方に凸の複数の押付部２１が設けられている。押付部２１は、例えば、四つが設けられ、上下左右に離隔して位置されている。 Positioning protrusions 18 that protrude rearward are provided at positions near the upper end of both the left and right ends of the control lens 13, respectively. A positioning hole 19 is formed at both left and right ends of the control lens 13 at approximately the center in the vertical direction. A position holding hole 20 is formed at the lower end of both left and right ends of the control lens 13 . The control lens 13 is provided with a plurality of pressing portions 21 each of which is convex toward the rear. For example, four pressing portions 21 are provided and are spaced apart from each other vertically and horizontally.
　制御レンズ１３において位置合わせ突部１８と押付部２１が突出された面（後面）は対向面１３ｃとして形成されている。 A surface (rear surface) of the control lens 13 from which the positioning projection 18 and the pressing portion 21 are projected is formed as an opposing surface 13c.
　基板１４は横長の形状に形成されている。基板１４の左右両端部には位置合わせ孔２２が形成されている。基板１４の左右両端部にはネジ用孔２３が形成され、ネジ用孔２３は位置合わせ孔２２の下側に位置されている。 The substrate 14 is formed in a horizontally long shape. Positioning holes 22 are formed at both left and right ends of the substrate 14 . Screw holes 23 are formed at both left and right ends of the substrate 14 , and the screw holes 23 are located below the alignment holes 22 .
　基板１４の前面には複数の光源２４が、例えば、左右に離隔して搭載されている。光源２４としては、例えば、発光ダイオード（ＬＥＤ：Light Emitting Diode）が用いられている。基板１４の前面には図示しないコネクターが接続され、コネクターはケーブルを介して点消灯回路を有する図示しない制御部に接続されている。従って、光源２４は点消灯回路によって各別に制御される。 A plurality of light sources 24 are mounted on the front surface of the substrate 14, for example, spaced apart from each other left and right. As the light source 24, for example, a light emitting diode (LED) is used. A connector (not shown) is connected to the front surface of the board 14, and the connector is connected via a cable to a control unit (not shown) having a light-on/off circuit. Therefore, the light sources 24 are individually controlled by the on/off circuits.
　第２のユニット７は取付面部８の取付面１０にネジ止めによって取り付けられる。第２のユニット７はレンズホルダー２５と投影レンズ２６によって構成され、レンズホルダー２５は第２のユニット７における第１の部材として設けられ、投影レンズ２６は第２のユニット７における第２の部材として設けられている。 The second unit 7 is attached to the attachment surface 10 of the attachment surface section 8 by screwing. The second unit 7 is composed of a lens holder 25 and a projection lens 26, the lens holder 25 is provided as a first member in the second unit 7, and the projection lens 26 is provided as a second member in the second unit 7. It is provided.
　レンズホルダー２５は横長の枠状に形成され、横長の挿入配置孔２５ａを有している。 The lens holder 25 is formed into a horizontally long frame shape and has a horizontally long insertion hole 25a.
　レンズホルダー２５にはそれぞれ後方に突出された、例えば、三つの第２のネジ止め部２７が設けられている。第２のネジ止め部２７は後方に開口され内周面に螺溝２７ａを有している。第２のネジ止め部２７はレンズホルダー２５の左右両端部と左右方向における中央部における上端部とに設けられている。レンズホルダー２５の左右両端部における下端部にはそれぞれ後方に突出された挿入ピン２８が設けられている。レンズホルダー２５にはそれぞれ後方に凸の四つの第２の押さえ部２９が上下左右に離隔して設けられている。 The lens holder 25 is provided with, for example, three second screw fixing parts 27 that respectively protrude rearward. The second screw fixing portion 27 is opened rearward and has a threaded groove 27a on its inner peripheral surface. The second screw fixing portions 27 are provided at both left and right ends of the lens holder 25 and at the upper end at the center in the left and right direction. Insertion pins 28 protruding rearward are provided at the lower ends of both left and right ends of the lens holder 25, respectively. The lens holder 25 is provided with four rearwardly convex second holding parts 29 spaced apart from each other vertically and horizontally.
　投影レンズ２６は透明な樹脂材料によって形成され、横長の略矩形状に形成されたレンズ部３０とレンズ部３０の四つの角部からそれぞれ後方に突出された被取付突部３１とによって構成されている。 The projection lens 26 is made of a transparent resin material, and includes a lens portion 30 formed in a horizontally elongated substantially rectangular shape and mounting protrusions 31 that protrude rearward from each of the four corners of the lens portion 30. There is.
　投影レンズ２６には下側の二つの被取付突部３１の先端面からそれぞれ後方に突出された位置決めピン３２が設けられている。投影レンズ２６にはそれぞれ後方に凸の複数の押当突部３３が設けられている。押当突部３３は、例えば、四つの被取付突部３１の先端面からそれぞれ後方に突出されている。 The projection lens 26 is provided with positioning pins 32 that protrude rearward from the tip surfaces of the two lower mounting protrusions 31, respectively. The projection lens 26 is provided with a plurality of rearwardly convex pressing protrusions 33, respectively. The pressing protrusions 33, for example, respectively protrude rearward from the tip surfaces of the four attached protrusions 31.
　上記のように構成された第１のユニット６において、シェード１２と基板１４が制御レンズ１３に対して光軸方向に直交する方向において位置決めされる。 In the first unit 6 configured as described above, the shade 12 and the substrate 14 are positioned with respect to the control lens 13 in a direction perpendicular to the optical axis direction.
　シェード１２の制御レンズ１３に対する位置決めはシェード１２の位置決め突部１６が制御レンズ１３の位置決め孔１９に前側から挿入されることにより行われ、基板１４の制御レンズ１３に対する位置決めは制御レンズ１３の位置合わせ突部１８が基板１４の位置合わせ孔２２に前側から挿入されることにより行われる。従って、第１のユニット６においては、制御レンズ１３を基準としてシェード１２と基板１４の光軸方向に直交する方向における位置決めが行われる。 The positioning of the shade 12 with respect to the control lens 13 is performed by inserting the positioning protrusion 16 of the shade 12 into the positioning hole 19 of the control lens 13 from the front side, and the positioning of the substrate 14 with respect to the control lens 13 is performed by aligning the control lens 13. This is done by inserting the protrusion 18 into the alignment hole 22 of the substrate 14 from the front side. Therefore, in the first unit 6, positioning of the shade 12 and the substrate 14 in a direction perpendicular to the optical axis direction is performed using the control lens 13 as a reference.
　上記のように位置決めされた第１のユニット６は、制御レンズ１３の位置合わせ突部１８がヒートシンク５の第１の挿入孔８ｂに挿入され、第１の取付ネジ５０によってヒートシンク５に取り付けられる（図２乃至図４参照）。第１のユニット６がヒートシンク５に取り付けられるときには、制御レンズ１３の押付部２１によって基板１４が前側から押さえられて基板１４がヒートシンク５の取付面１０に押し付けられ、シェード１２の第１の押さえ部１７によって制御レンズ１３が前側から押さえられて押付部２１が基板１４に押し付けられる（図４参照）。このとき、シェード１２の第１のネジ止め部１５は制御レンズ１３の挿通用切欠１３ｂを通り基板１４のネジ用孔２３が形成された部分に対向して位置され、第１のネジ止め部１５の先端面と基板１４の前面との間に隙間Ｈ１が生じた状態にされる。また、このとき制御レンズ１３の対向面１３ｃと取付面１０の間には隙間Ｈ２が生じた状態にされている。 The first unit 6 positioned as described above is attached to the heat sink 5 by the first mounting screw 50 with the alignment protrusion 18 of the control lens 13 inserted into the first insertion hole 8b of the heat sink 5 ( (See Figures 2 to 4). When the first unit 6 is attached to the heat sink 5 , the substrate 14 is pressed from the front side by the pressing portion 21 of the control lens 13 and the substrate 14 is pressed against the mounting surface 10 of the heat sink 5 . 17 presses the control lens 13 from the front side and presses the pressing portion 21 against the substrate 14 (see FIG. 4). At this time, the first screwed part 15 of the shade 12 is positioned opposite to the part of the board 14 where the screw hole 23 is formed through the insertion notch 13b of the control lens 13. A gap H1 is created between the front end surface of the substrate 14 and the front surface of the substrate 14. Further, at this time, a gap H2 is created between the opposing surface 13c of the control lens 13 and the mounting surface 10.
　第１のネジ止め部１５と基板１４の間に隙間Ｈ１が生じ対向面１３ｃと取付面１０の間に隙間Ｈ２が生じた状態において、第１の取付ネジ５０が作業面１１側（後側）からヒートシンク５の第１のネジ挿通孔８ａと基板１４のネジ用孔２３とに挿通され第１のネジ止め部１５の螺溝１５ａに螺合され、第１のユニット６がヒートシンク５に取り付けられる。尚、車輌用灯具１においては、第１の取付ネジ５０としてタッピングネジが用いられ、第１のネジ止め部１５として螺溝が形成されていないネジ止め部が設けられ、第１の取付ネジ５０がネジ止め部にタッピングされてもよい。 In a state where a gap H1 is created between the first screw fixing part 15 and the board 14 and a gap H2 is created between the opposing surface 13c and the mounting surface 10, the first mounting screw 50 is attached to the work surface 11 side (rear side). The first unit 6 is inserted into the first screw insertion hole 8a of the heat sink 5 and the screw hole 23 of the board 14 and screwed into the thread groove 15a of the first screw fixing part 15, so that the first unit 6 is attached to the heat sink 5. . In the vehicular lamp 1, a tapping screw is used as the first mounting screw 50, a screw fastening part without a thread groove is provided as the first screw fastening part 15, and the first mounting screw 50 is a self-tapping screw. may be tapped into the screwed part.
　このように第１のネジ止め部１５と基板１４の間に隙間Ｈ１が生じた状態で第１の取付ネジ５０が螺溝１５ａに螺合されるため、シェード１２の第１の押さえ部１７が制御レンズ１３に確実に押し付けられる。また、対向面１３ｃと取付面１０の間に隙間Ｈ２が生じた状態で第１の取付ネジ５０が螺溝１５ａに螺合されるため、制御レンズ１３の押付部２１が基板１４に確実に押し付けられ基板１４がヒートシンク５の取付面１０に確実に押し付けられる。 Since the first mounting screw 50 is screwed into the threaded groove 15a with the gap H1 created between the first screwed part 15 and the board 14 in this way, the first holding part 17 of the shade 12 is It is reliably pressed against the control lens 13. Furthermore, since the first mounting screw 50 is screwed into the threaded groove 15a with a gap H2 created between the opposing surface 13c and the mounting surface 10, the pressing portion 21 of the control lens 13 is reliably pressed against the substrate 14. The substrate 14 is reliably pressed against the mounting surface 10 of the heat sink 5.
　従って、シェード１２と制御レンズ１３と基板１４の間の光軸方向における高い位置精度が確保される。 Therefore, high positional accuracy in the optical axis direction between the shade 12, control lens 13, and substrate 14 is ensured.
　尚、基板１４は熱伝導性と絶縁性を有するシート、例えば、接着シートによってヒートシンク５の取付面１０に貼り付けられていてもよい。基板１４が熱伝導性を有するシートによってヒートシンク５に貼り付けられることにより、光源２４の点灯時に発生する熱が効率的にヒートシンク５に伝達されて外部に放出され、光源２４と基板１４の温度上昇を抑制して光源２４と基板１４の良好な動作状態を確保することができる。 Note that the substrate 14 may be attached to the mounting surface 10 of the heat sink 5 using a sheet having thermal conductivity and insulation properties, for example, an adhesive sheet. Since the substrate 14 is attached to the heat sink 5 with a thermally conductive sheet, the heat generated when the light source 24 is turned on is efficiently transferred to the heat sink 5 and released to the outside, thereby increasing the temperature of the light source 24 and the substrate 14. It is possible to suppress this and ensure good operating conditions of the light source 24 and the substrate 14.
　また、第２のユニット７の投影レンズ２６は第１のユニット６の制御レンズ１３に対して光軸方向に直交する方向において位置決めされる。 Furthermore, the projection lens 26 of the second unit 7 is positioned with respect to the control lens 13 of the first unit 6 in a direction perpendicular to the optical axis direction.
　投影レンズ２６の制御レンズ１３に対する位置決めは投影レンズ２６の位置決めピン３２がシェード１２の逃げ切欠１２ｂを通って制御レンズ１３の位置保持孔２０に前側から挿入されることにより行われる。従って、車輌用灯具１においては、制御レンズ１３を基準としてシェード１２と基板１４に加え投影レンズ２６の光軸方向に直交する方向における位置決めも行われる。 The positioning of the projection lens 26 with respect to the control lens 13 is performed by inserting the positioning pin 32 of the projection lens 26 into the position holding hole 20 of the control lens 13 from the front through the relief notch 12b of the shade 12. Therefore, in the vehicular lamp 1, positioning of the shade 12 and the substrate 14 as well as the projection lens 26 in a direction perpendicular to the optical axis direction is performed using the control lens 13 as a reference.
　上記のように位置決めされた投影レンズ２６は、位置決めピン３２がヒートシンク５の第２の挿入孔８ｄに挿入され、レンズ部３０がレンズホルダー２５の挿入配置孔２５ａに後側から挿入されて配置され、レンズホルダー２５とともに第２の取付ネジ６０によってヒートシンク５に取り付けられる（図２、図３及び図５参照）。第２のユニット７のレンズホルダー２５と投影レンズ２６がヒートシンク５に取り付けられるときには、レンズホルダー２５の挿入ピン２８がヒートシンク５の第３の挿入孔８ｅに挿入された状態においてレンズホルダー２５の第２の押さえ部２９によって投影レンズ２６が前側から押さえられて押当突部３３がヒートシンク５の取付面１０に押し当てられる（図５参照）。このとき、レンズホルダー２５の第２のネジ止め部２７がヒートシンク５の第２のネジ挿通孔８ｃが形成された部分に対向して位置され、第２のネジ止め部２７の先端面とヒートシンク５の取付面１０との間に隙間Ｈ３が生じた状態にされる。 The projection lens 26 positioned as described above is arranged by inserting the positioning pin 32 into the second insertion hole 8d of the heat sink 5, and inserting the lens part 30 into the insertion hole 25a of the lens holder 25 from the rear side. , is attached to the heat sink 5 together with the lens holder 25 by a second attachment screw 60 (see FIGS. 2, 3, and 5). When the lens holder 25 and the projection lens 26 of the second unit 7 are attached to the heat sink 5, the insertion pin 28 of the lens holder 25 is inserted into the third insertion hole 8e of the heat sink 5, and the second The projection lens 26 is pressed from the front side by the holding part 29, and the pressing protrusion 33 is pressed against the mounting surface 10 of the heat sink 5 (see FIG. 5). At this time, the second screw fixing part 27 of the lens holder 25 is positioned opposite to the part of the heat sink 5 in which the second screw insertion hole 8c is formed, and the tip surface of the second screw fixing part 27 and the heat sink 5 A gap H3 is created between the mounting surface 10 and the mounting surface 10.
　第２のネジ止め部２７とヒートシンク５の間に隙間Ｈ３が生じた状態において、第２の取付ネジ６０が作業面１１側（後側）からヒートシンク５の第２のネジ挿通孔８ｃに挿通され第２のネジ止め部２７の螺溝２７ａに螺合され、第２のユニット７がヒートシンク５に取り付けられる。尚、車輌用灯具１においては、第２の取付ネジ６０としてタッピングネジが用いられ、第２のネジ止め部２７として螺溝が形成されていないネジ止め部が設けられ、第２の取付ネジ６０がネジ止め部にタッピングされてもよい。 With a gap H3 created between the second screw fixing part 27 and the heat sink 5, the second mounting screw 60 is inserted into the second screw insertion hole 8c of the heat sink 5 from the work surface 11 side (rear side). The second unit 7 is attached to the heat sink 5 by being screwed into the threaded groove 27a of the second screw portion 27. In the vehicle lamp 1, a tapping screw is used as the second mounting screw 60, a screw fastening part without a thread groove is provided as the second screw fastening part 27, and the second mounting screw 60 is a self-tapping screw. may be tapped into the screwed part.
　このように第２のネジ止め部２７とヒートシンク５の間に隙間Ｈ３が生じた状態で第２の取付ネジ６０が螺溝２７ａに螺合されるため、レンズホルダー２５の第２の押さえ部２９が投影レンズ２６に確実に押し付けられる。従って、レンズホルダー２５と投影レンズ２６とヒートシンク５の間の光軸方向における高い位置精度が確保される。 Since the second mounting screw 60 is screwed into the threaded groove 27a with the gap H3 created between the second screw fixing part 27 and the heat sink 5, the second holding part 29 of the lens holder 25 is reliably pressed against the projection lens 26. Therefore, high positional accuracy in the optical axis direction between the lens holder 25, the projection lens 26, and the heat sink 5 is ensured.
　上記のように構成された車輌用灯具１において、光源２４から出射された光は制御レンズ１３の制御部１３ａによって制御され投影レンズ２６のレンズ部３０によって平行光になるように制御されてカバー３を透過され外部へ向けて照射される。このとき光の一部がシェード１２によって遮蔽され、適正な配光パターンで外部へ向けて照射される。 In the vehicle lamp 1 configured as described above, the light emitted from the light source 24 is controlled by the control unit 13a of the control lens 13, and is controlled to become parallel light by the lens unit 30 of the projection lens 26. is transmitted and irradiated to the outside. At this time, a part of the light is blocked by the shade 12 and is irradiated to the outside with an appropriate light distribution pattern.
　従って、車輌用灯具１においては、光を制御する投影レンズ２６と制御レンズ１３に加えて光を遮蔽するシェード１２及び光源２４が搭載された基板１４の四つの部材の間の位置精度が特に重要であり、これらの四つの部材の高い位置精度が確保されることにより適正な方向へ適正な配光パターンで光を照射することが可能になる。 Therefore, in the vehicle lamp 1, positional accuracy is particularly important between the four members: the projection lens 26 that controls the light, the control lens 13, the shade 12 that blocks the light, and the board 14 on which the light source 24 is mounted. By ensuring high positional accuracy of these four members, it becomes possible to irradiate light in an appropriate direction with an appropriate light distribution pattern.
　以上に記載した通り、第１の取付ネジ５０がベース体として設けられたヒートシンク５の作業面１１側から第１のネジ挿通孔８ａに挿通された状態で第１のネジ止め部１５に螺合され、第１の部材として設けられたシェード１２と第２の部材として設けられた制御レンズ１３が第１のネジ止め部１５とヒートシンク５の取付面１０との間に隙間Ｈ１を有した状態において第１の取付ネジ５０によってヒートシンク５に取り付けられる。 As described above, the first mounting screw 50 is inserted into the first screw insertion hole 8a from the work surface 11 side of the heat sink 5 provided as a base body and is screwed into the first screw fixing part 15. In a state where the shade 12 provided as the first member and the control lens 13 provided as the second member have a gap H1 between the first screwed part 15 and the mounting surface 10 of the heat sink 5. It is attached to the heat sink 5 by a first attachment screw 50 .
　従って、制御レンズ１３が第１の押さえ部１７によって取付面１０側に押さえられた状態において第１のネジ挿通孔８ａに作業面１１側から挿通される第１の取付ネジ５０によってシェード１２と制御レンズ１３がヒートシンク５に取り付けられる。これにより、制御レンズ１３とヒートシンク５の間の位置精度を高めることができると共にシェード１２と制御レンズ１３のヒートシンク５に対する取付作業における作業性の向上を図ることができる。 Therefore, when the control lens 13 is pressed against the mounting surface 10 side by the first holding part 17, the shade 12 is controlled by the first mounting screw 50 inserted into the first screw insertion hole 8a from the work surface 11 side. A lens 13 is attached to the heat sink 5. Thereby, the positional accuracy between the control lens 13 and the heat sink 5 can be improved, and the workability in attaching the shade 12 and the control lens 13 to the heat sink 5 can be improved.
　また、車輌用灯具１の第２のユニット７にあっては、第２の取付ネジ６０がベース体として設けられたヒートシンク５の作業面１１側から第２のネジ挿通孔８ｃに挿通された状態で第２のネジ止め部２７に螺合され、第１の部材として設けられたレンズホルダー２５と第２の部材として設けられた投影レンズ２６が第２のネジ止め部２７とヒートシンク５の取付面１０との間に隙間Ｈ３を有した状態において第２の取付ネジ６０によってヒートシンク５に取り付けられる。 Further, in the second unit 7 of the vehicle lamp 1, the second mounting screw 60 is inserted into the second screw insertion hole 8c from the work surface 11 side of the heat sink 5 provided as a base body. The lens holder 25 provided as the first member and the projection lens 26 provided as the second member are screwed together to the second screwed part 27 and the mounting surface of the second screwed part 27 and the heat sink 5. It is attached to the heat sink 5 with a second attachment screw 60 with a gap H3 between it and the heat sink 10 .
　従って、投影レンズ２６が第２の押さえ部２９によって取付面１０側に押さえられた状態において第２のネジ挿通孔８ｃに作業面１１側から挿通される第２の取付ネジに６０によってレンズホルダー２５と投影レンズ２６がヒートシンク５に取り付けられる。これにより、投影レンズ２６とヒートシンク５の間の位置精度を高めることができると共にレンズホルダー２５と投影レンズ２６のヒートシンク５に対する取付作業における作業性の向上を図ることができる。 Therefore, when the projection lens 26 is pressed against the mounting surface 10 side by the second holding part 29, the lens holder 25 is attached to the second mounting screw 60 inserted into the second screw insertion hole 8c from the working surface 11 side. The projection lens 26 is attached to the heat sink 5. Thereby, the positional accuracy between the projection lens 26 and the heat sink 5 can be improved, and the workability in attaching the lens holder 25 and the projection lens 26 to the heat sink 5 can be improved.
　特に、車輌用灯具１にあっては、第１のユニット６と第２のユニット７がヒートシンク５の取付面１０側に位置された状態で第１の取付ネジ５０と第２の取付ネジ６０を用いてヒートシンク５の作業面１１側から第１のユニット６と第２のユニット７がヒートシンク５に取り付けられる。従って、第１のユニット６と第２のユニット７のヒートシンク５に対する取付作業を同じ方向から連続して行うことが可能であり、取付作業を容易かつ迅速に行うことができ、取付作業における作業性の向上を図ることができる。 In particular, in the vehicle lamp 1, the first mounting screw 50 and the second mounting screw 60 are screwed while the first unit 6 and the second unit 7 are positioned on the mounting surface 10 side of the heat sink 5. The first unit 6 and the second unit 7 are attached to the heat sink 5 from the work surface 11 side of the heat sink 5 using the heat sink 5. Therefore, it is possible to perform the installation work of the first unit 6 and the second unit 7 to the heat sink 5 successively from the same direction, and the installation work can be performed easily and quickly, which improves work efficiency in the installation work. It is possible to improve the
　さらに、第１のユニット６においては、第２の部材として設けられた制御レンズ１３に光源２４の光軸方向において第３の部材として設けられた基板１４を取付面１０に押し付ける押付部２１が設けられ、シェード１２と制御レンズ１３と基板１４が制御レンズ１３の対向面１３ｃと取付面１０の間に隙間Ｈ２を有した状態においてヒートシンク５に取り付けられる
　従って、光軸方向において第１の押さえ部１７によって制御レンズ１３が押さえられると共に押付部２１によって基板１４が押し付けられた状態でシェード１２と制御レンズ１３と基板１４がヒートシンク５に取り付けられるため、制御レンズ１３と基板１４のヒートシンク５に対する光軸方向における高い位置精度を確保することができる。 Further, in the first unit 6, the control lens 13 provided as the second member is provided with a pressing portion 21 that presses the substrate 14 provided as the third member against the mounting surface 10 in the optical axis direction of the light source 24. The shade 12, control lens 13, and substrate 14 are attached to the heat sink 5 with a gap H2 between the opposing surface 13c of the control lens 13 and the mounting surface 10. Since the shade 12, the control lens 13, and the substrate 14 are attached to the heat sink 5 with the control lens 13 being pressed and the substrate 14 being pressed by the pressing part 21, the optical axis direction of the control lens 13 and the substrate 14 with respect to the heat sink 5 is High positional accuracy can be ensured.
　さらにまた、シェード１２に位置決め突部１６が設けられ、制御レンズ１３に位置合わせ突部１８が設けられ、制御レンズ１３に位置決め突部１６が挿入される位置決め孔１９が形成され、基板１４に位置合わせ突部１８が挿入される位置合わせ孔２２が形成されている。 Furthermore, the shade 12 is provided with a positioning protrusion 16 , the control lens 13 is provided with a positioning protrusion 18 , the control lens 13 is provided with a positioning hole 19 into which the positioning protrusion 16 is inserted, and the substrate 14 is provided with a positioning protrusion 16 . An alignment hole 22 into which the alignment protrusion 18 is inserted is formed.
　従って、シェード１２と基板１４が制御レンズ１３に各別に位置決めされるため、光軸方向に直交する方向においてシェード１２と基板１４の制御レンズ１３に対する高い位置精度を確保することができる。 Therefore, since the shade 12 and the substrate 14 are positioned separately with respect to the control lens 13, high positional accuracy of the shade 12 and the substrate 14 with respect to the control lens 13 can be ensured in the direction perpendicular to the optical axis direction.
　また、第２の部材として光源２４から出射された光を制御する制御レンズ１３が用いられ、第１の部材として制御レンズ１３によって制御された光の一部を遮蔽するシェード１２が用いられ、第３の部材として光源２４が搭載された基板１４が用いられている。 Further, the control lens 13 that controls the light emitted from the light source 24 is used as the second member, the shade 12 that blocks part of the light controlled by the control lens 13 is used as the first member, and the 3, a substrate 14 on which a light source 24 is mounted is used.
　従って、制御レンズ１３にシェード１２と基板１４が各別に位置決めされるため、制御レンズ１３とシェード１２と光源２４の光軸方向に直交する方向における位置精度が向上し、光源２４から出射される光の適正な制御及び遮蔽を行うことができる。 Therefore, since the shade 12 and the substrate 14 are positioned separately on the control lens 13, the positional accuracy of the control lens 13, the shade 12, and the light source 24 in the direction orthogonal to the optical axis direction is improved, and the light emitted from the light source 24 is Appropriate control and shielding can be performed.
　加えて、制御レンズ１３に投影レンズ２６の位置決めピン３２が挿入される位置保持孔２０が形成されているため、制御レンズ１３に対して基板１４とシェード１２と投影レンズ２６が位置決めされ、光軸方向に直交する方向において制御レンズ１３と基板１４とシェード１２と投影レンズ２６の間の高い位置精度を確保することができる。 In addition, since the control lens 13 is formed with a position holding hole 20 into which the positioning pin 32 of the projection lens 26 is inserted, the substrate 14, shade 12, and projection lens 26 are positioned with respect to the control lens 13, and the optical axis is aligned. High positional accuracy between the control lens 13, the substrate 14, the shade 12, and the projection lens 26 can be ensured in the direction perpendicular to the direction.
　尚、上記には、シェード１２に位置決め突部１６が設けられ制御レンズ１３に位置決め孔１９が形成された例を示したが、逆に、シェードに位置決め孔が形成され制御レンズに位置決め突部が設けられていてもよい。また、上記には、制御レンズ１３に位置合わせ突部１８が設けられ基板１４に位置合わせ孔２２が形成された例を示したが、逆に、制御レンズに位置合わせ孔が形成され基板に位置合わせ突部が設けられていてもよい。さらに、上記には、投影レンズ２６に位置決めピン３２が設けられ制御レンズ１３に位置保持孔２０が形成された例を示したが、逆に、投影レンズに位置保持孔が形成され制御レンズに位置決めピンが設けられていてもよい。 In addition, although the example in which the positioning protrusion 16 is provided on the shade 12 and the positioning hole 19 is formed on the control lens 13 is shown above, conversely, the positioning hole is formed on the shade and the positioning protrusion is provided on the control lens. may be provided. Further, although the above example shows that the control lens 13 is provided with the alignment protrusion 18 and the substrate 14 is formed with the alignment hole 22, conversely, the control lens is formed with an alignment hole and the substrate is formed with the alignment hole 22. A mating protrusion may be provided. Further, in the above example, the projection lens 26 is provided with the positioning pin 32 and the control lens 13 is provided with the position holding hole 20, but conversely, the projection lens is provided with a position holding hole and the control lens is provided with the position holding hole 20. A pin may also be provided.
　１…車輌用灯具、５…ヒートシンク（ベース体）、８ａ…第１のネジ挿通孔、８ｃ…第２のネジ挿通孔、１０…取付面、１１…作業面、１２…シェード（第１の部材）、１３…制御レンズ（第２の部材）、１４…基板（第３の部材）、１５…第１のネジ止め部、１６…位置決め突部、１７…第１の押さえ部、１８…位置合わせ突部、１９…位置決め孔、２０…位置保持孔、２１…押付部、２２…位置合わせ孔、２３…ネジ用孔、２４…光源、２５…レンズホルダー（第１の部材）、２６…投影レンズ（第２の部材）、２７…第２のネジ止め部、２８…挿入ピン、２９…第２の押さえ部、３２…位置決めピン、５０…第１の取付ネジ、６０…第２の取付ネジ DESCRIPTION OF SYMBOLS 1... Vehicle lamp, 5... Heat sink (base body), 8a... First screw insertion hole, 8c... Second screw insertion hole, 10... Mounting surface, 11... Work surface, 12... Shade (first member) ), 13... Control lens (second member), 14... Substrate (third member), 15... First screw fixing part, 16... Positioning protrusion, 17... First holding part, 18... Positioning Projection, 19... Positioning hole, 20... Position holding hole, 21... Pressing part, 22... Positioning hole, 23... Screw hole, 24... Light source, 25... Lens holder (first member), 26... Projection lens (Second member), 27... Second screw fixing part, 28... Insertion pin, 29... Second holding part, 32... Positioning pin, 50... First mounting screw, 60... Second mounting screw

Claims (5)

  1. 　光源から出射された光を照射する車輌用灯具であって、
    　押さえ部とネジ止め部を有する第１の部材と、
    　ネジ挿通孔を有し厚み方向における一方の面が取付面として形成され他方の面が作業面として形成されたベース体と、
    　前記押さえ部によって前記光源の光軸方向において前記取付面側に押さえられる第２の部材とを備え、
    　取付ネジが前記作業面側から前記ネジ挿通孔に挿通された状態で前記ネジ止め部に螺合され、
    　前記第１の部材と前記第２の部材が前記ネジ止め部と前記取付面の間に隙間を有した状態において前記取付ネジによって前記ベース体に取り付けられる
    　車輌用灯具。     A vehicle lamp that emits light emitted from a light source,
    a first member having a holding part and a screwing part;
    a base body having a screw insertion hole and having one surface in the thickness direction formed as a mounting surface and the other surface formed as a working surface;
    a second member pressed toward the mounting surface side in the optical axis direction of the light source by the holding portion;
    A mounting screw is inserted into the screw insertion hole from the work surface side and is screwed into the screw fixing part,
    A vehicular lamp, wherein the first member and the second member are attached to the base body by the attachment screw with a gap between the screw fixing portion and the attachment surface.
  2. 　前記取付面に押し付けられる第３の部材が設けられ、
    　前記第２の部材には前記光源の光軸方向において前記第３の部材を前記取付面に押し付ける押付部が設けられ、
    　前記第１の部材と前記第２の部材と前記第３の部材が前記第２の部材と前記取付面の間に隙間を有した状態において前記ベース体に取り付けられる
    　請求項１に記載の車輌用灯具。     a third member pressed against the mounting surface;
    The second member is provided with a pressing portion that presses the third member against the mounting surface in the optical axis direction of the light source,
    The vehicle according to claim 1, wherein the first member, the second member, and the third member are attached to the base body with a gap between the second member and the mounting surface. Light equipment.
  3. 　前記第１の部材に位置決め突部が設けられ、
    　前記第２の部材に位置合わせ突部が設けられ、
    　前記第２の部材に前記位置決め突部が挿入される位置決め孔が形成され、
    　前記第３の部材に前記位置合わせ突部が挿入される位置合わせ孔が形成された
    　請求項２に記載の車輌用灯具。     a positioning protrusion is provided on the first member;
    an alignment protrusion is provided on the second member;
    A positioning hole into which the positioning protrusion is inserted is formed in the second member,
    The vehicular lamp according to claim 2, wherein an alignment hole into which the alignment protrusion is inserted is formed in the third member.
  4. 　前記第２の部材として前記光源から出射された光を制御する制御レンズが用いられ、
    　前記第１の部材として前記制御レンズによって制御された光の一部を遮蔽するシェードが用いられ、
    　前記第３の部材として前記光源が搭載された基板が用いられた
    　請求項３に記載の車輌用灯具。     A control lens that controls the light emitted from the light source is used as the second member,
    A shade that blocks part of the light controlled by the control lens is used as the first member,
    The vehicular lamp according to claim 3, wherein a substrate on which the light source is mounted is used as the third member.
  5. 　前記第２の部材が二つ設けられ、
    　前記制御レンズとは異なる前記第２の部材として位置決めピンを有する投影レンズが設けられ、
    　前記制御レンズに前記位置決めピンが挿入される位置保持孔が形成された
    　請求項４に記載の車輌用灯具。     Two of the second members are provided,
    A projection lens having a positioning pin is provided as the second member different from the control lens,
    The vehicular lamp according to claim 4, wherein a position holding hole into which the positioning pin is inserted is formed in the control lens.
PCT/JP2023/012475 2022-04-15 2023-03-28 Vehicle lamp WO2023199739A1 (en)

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JP2022067627 2022-04-15
JP2022-067627 2022-04-15

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018106890A (en) * 2016-12-26 2018-07-05 スタンレー電気株式会社 Lens holding structure and vehicular lighting fixture
JP2021017228A (en) * 2019-07-20 2021-02-15 株式会社小糸製作所 Vehicular lighting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018106890A (en) * 2016-12-26 2018-07-05 スタンレー電気株式会社 Lens holding structure and vehicular lighting fixture
JP2021017228A (en) * 2019-07-20 2021-02-15 株式会社小糸製作所 Vehicular lighting device

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