WO2020255827A1 - Lampe de véhicule et couvercle pour lampe de véhicule - Google Patents

Lampe de véhicule et couvercle pour lampe de véhicule Download PDF

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Publication number
WO2020255827A1
WO2020255827A1 PCT/JP2020/022866 JP2020022866W WO2020255827A1 WO 2020255827 A1 WO2020255827 A1 WO 2020255827A1 JP 2020022866 W JP2020022866 W JP 2020022866W WO 2020255827 A1 WO2020255827 A1 WO 2020255827A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
welded
lamp housing
design surface
welding
Prior art date
Application number
PCT/JP2020/022866
Other languages
English (en)
Japanese (ja)
Inventor
昌彦 西崎
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
Priority to JP2021528143A priority Critical patent/JP7430185B2/ja
Publication of WO2020255827A1 publication Critical patent/WO2020255827A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/87—Auxiliary operations or devices
    • 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
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices

Definitions

  • the present invention relates to a vehicle lighting fixture in which a cover is joined to a lamp housing by hot plate welding and a technical field of a vehicle lighting fixture cover.
  • a lamp housing for a vehicle has a lamp housing having an opening and a cover joined to the lamp housing in a state of closing the opening, and a lamp unit or the like is required inside a lamp housing and a lamp outer housing composed of the cover. Each part of is arranged.
  • a welded surface is formed on the lamp housing, and the cover is provided with a welded leg portion protruding from the outer peripheral side portion of the design surface portion.
  • the design surface portion is a portion where the outer surface faces the outside of the vehicle, the welding leg portion is a portion joined to the welding surface by hot plate welding, and the tip portion of the welding leg portion is joined to the welding surface by melting.
  • the lamp housing and the cover are held by the first jig and the second jig, respectively, and the welded legs and the joint surface are heated by the hot plate so that they can be melted.
  • the cover is pressed against the lamp housing in the crimping direction, and the tip of the welded leg pressed against the welded surface is melted.
  • the crimping direction is the moving direction of the second jig with respect to the first jig.
  • the cover of a vehicle lamp often has a design surface portion curved according to the shape of the vehicle body or the like, and the welded leg portion protrudes from the outer peripheral side portion of the design surface portion. Therefore, the protruding direction of the welded leg from the design surface does not match the crimping direction at the time of joining by hot plate welding.
  • the contact direction between the two is different from the crimping direction at the time of joining by hot plate welding, and the bonding strength of the cover to the lamp housing may decrease.
  • the vehicle lighting fixture of the present invention and the vehicle lighting fixture cover are intended to ensure high bonding strength to the lamp housing of the cover.
  • the vehicle lamp according to the present invention includes a lamp housing having an internal space and a welded surface formed thereof, and a cover covering the internal space, and the cover is joined to the lamp housing by hot plate welding.
  • a vehicle lamp, the cover is provided with a design surface portion whose outer surface faces the outside of the vehicle and a welding leg portion that protrudes from the design surface portion and is welded to the welding surface.
  • the welding leg portion is provided with a welding leg portion.
  • a continuous portion continuous with the design surface portion and a bent portion that is bent toward the outer peripheral side of the design surface portion with respect to the continuous portion and the tip portion is welded to the welded surface are provided.
  • the bent portion is bent with respect to the continuous portion in a direction in which the contact direction between the two when the welded leg is pressed against the welded surface of the lamp housing approaches the crimping direction at the time of joining by hot plate welding.
  • the protruding direction of the continuous portion from the design surface portion is 30 with respect to the crimping direction when the cover is crimped to the lamp housing in hot plate welding. It is desirable to make it larger than the degree.
  • the size of the portion of the design surface portion on the inner peripheral side of the welded leg portion that transmits light becomes large, so that the transmission region of the light cover emitted from the light source becomes large.
  • the boundary portion between the continuous portion and the bent portion is formed as a bent end portion, and the direction connecting the tip portion and the bent end portion in the bent portion is It is desirable that the knotting direction is the same as the crimping direction.
  • the outer peripheral portion of the design surface portion is located outside the welded leg portion.
  • the outer peripheral portion of the design surface portion functions as a shielding portion that shields the welded leg portion, and the joint portion of the welded leg portion with the welded surface is difficult to be visually recognized from the gap between the vehicle body and the cover.
  • the vehicle lamp cover according to the present invention is a vehicle lamp cover that is joined to a lamp housing having an internal space and having a welded surface formed by hot plate welding, and the outer surface is the outside of the vehicle.
  • a design surface portion facing toward the direction and a welded leg portion that protrudes from the design surface portion and is welded to the welded surface are provided, and the welded leg portion has a continuous portion continuous with the design surface portion and a continuous portion with respect to the continuous portion.
  • a bent portion that is bent on the outer peripheral side of the design surface portion and the tip portion is welded to the welded surface is provided.
  • the bent portion is bent with respect to the continuous portion in a direction in which the contact direction between the two when the welded leg is pressed against the welded surface of the lamp housing approaches the crimping direction at the time of joining by hot plate welding.
  • the bending portion when the welding leg portion is pressed against the welding surface of the lamp housing, the bending portion is bent with respect to the continuous portion in a direction in which the contact direction between the two is closer to the crimping direction at the time of joining by hot plate welding. , High bonding strength of the cover to the lamp housing can be ensured.
  • FIGS. 2 to 8 show an embodiment of the vehicle lamp and the cover of the vehicle lamp of the present invention, and this figure is a cross-sectional view showing the vehicle lamp. It is a figure which shows a part of a cover. It is sectional drawing which shows the state which a cover and a lamp housing are heated by a hot plate in hot plate welding. It is sectional drawing which shows the state which the cover is joined to the lamp housing in the hot plate welding. It is a figure which shows the background which came to this invention. It is a figure which shows the example which made the length in the knotting direction of a bent part and the length in a protruding direction from a design surface part of a continuous part substantially the same.
  • the vehicle lamp 1 has a lamp housing 2 and a cover 3, and the cover 3 is joined to the lamp housing 2 by hot plate welding.
  • the front-back, up-down, left-right directions are shown corresponding to the positions where the lamp housing 2 and the cover 3 are held at the time of joining by hot plate welding. Therefore, the side where the cover 3 is located is upward, the side where the lamp housing 2 is located is downward, and the direction in which the outer peripheral portion of the cover 3 is located in the cross-sectional shape shown in each figure is the left-right direction for convenience.
  • front-back, up-down, left-right directions 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 shown in a simple shape that is rotationally symmetric.
  • the vehicle lamp 1 is joined by joining the cover 3 to the lamp housing 2 by hot plate welding, and by crimping the cover 3 to the lamp housing 2 in the hot plate welding. Therefore, the crimping direction S is set in the vertical direction (see FIG. 1).
  • the lamp housing 2 is formed of a resin material such as ABS resin (acrylonitrile copolymer resin) and has an internal space.
  • the lamp housing 2 has a concave main body 4 opened upward, an annular flange portion 5 protruding outward from the upper end portion of the main body 4, and an annular joining protrusion protruding upward from the flange portion 5.
  • the upper surface of the bonding protrusion 6 is formed as a welding surface 6a.
  • the cover 3 is formed of, for example, a transparent resin material such as acrylic, and has a design surface portion 7 having an outer surface 3a facing outward of the vehicle and a welded leg portion 8 protruding from an outer peripheral portion of the inner surface 7a of the design surface portion 7. Are formed integrally.
  • the cover 3 is joined to the lamp housing 2 so as to cover the internal space.
  • the design surface portion 7 is curved so as to be convex on the opposite side of the lamp housing 2 according to the shape of the vehicle body, and is formed in a curved surface shape.
  • a portion of the design surface portion 7 outside the welded leg portion 8 is provided as a shielding portion 9 (see FIGS. 1 and 2).
  • a portion inside the shielding portion 9 which is a portion where the welding leg portion 8 is projected is provided as a protrusion forming portion 10
  • the inner portion of the protrusion forming portion 10 that is, the shielding portion 9 and the protrusion
  • a portion other than the portion forming portion 10 is provided as a light transmitting portion 11.
  • the welded leg portion 8 is composed of a continuous portion 12 continuous with the design surface portion 7 and a bent portion 13 bent with respect to the continuous portion 12.
  • the tip end surface of the bent portion 13 is formed as a joint surface 8a
  • the tip end portion of the bent portion 13 including the joint surface 8a is provided as a joint portion 8b (see FIG. 2).
  • the boundary portion between the continuous portion 12 and the bent portion 13 is formed as a bent end portion 8c.
  • the continuous portion 12 is projected in a direction substantially orthogonal to, for example, a direction in which the shielding portion 9 and the protrusion forming portion 10 are continuous, and the protruding direction P of the continuous portion 12 has an inclination angle ⁇ of 30 degrees with respect to the crimping direction S. It has been made larger.
  • the bent portion 13 is bent toward the outer peripheral side of the design surface portion 7, that is, the shielding portion 9 side with respect to the continuous portion 12.
  • the bending direction Q is the direction in which the bending portion 13 connects the joint portion 8b and the bending end portion 8c.
  • the knotting direction Q of the bent portion 13 coincides with the crimping direction S.
  • the knotting direction Q may be set to a certain angle or less with respect to the crimping direction S, and may be set to, for example, 30 degrees or less with respect to the crimping direction S.
  • the cover 3 When the cover 3 is joined to the lamp housing 2 by hot plate welding, the lamp housing 2 and the cover 3 are held by the first jig 50 and the second jig 60, respectively, and the cover 3 is separated above the lamp housing 2. (See FIG. 3).
  • the heat plate 70 is moved between the lamp housing 2 and the cover 3, and the lamp housing 2 is moved.
  • the joining protrusion 6 and the welding leg 8 of the cover 3 are heated by the hot plate 70.
  • the upper end portion of the bonding protrusion 6 including the welding surface 6a and the bonding portion 8b of the welding leg portion 8 are brought into a meltable state.
  • the hot plate 70 is moved and retracted from between the lamp housing 2 and the cover 3, and the second jig 60 is lowered to press the cover 3 against the lamp housing 2 in the crimping direction S.
  • the joint surface 8a of the welding leg portion 8 is crimped from above to the welding surface 6a of No. 6 (see FIG. 4).
  • the upper end portion of the joining protrusion 6 including the welding surface 6a and the joining portion 8b of the welding leg portion 8 are in a meltable state, the upper end portion of the joining protrusion 6 and the welding leg portion 8 The joint portion 8b is melted, and the cover 3 is joined to the lamp housing 2.
  • the lamp housing 2 and the cover 3 are taken out from the first jig 50 and the second jig 60, respectively, and the joining work of the cover 3 to the lamp housing 2 by hot plate welding is completed.
  • the lamp housing 2 and the cover 3 form the lamp outer housing 14 (see FIG. 1).
  • the inside of the lamp outer casing 14 is formed as a lamp chamber 14a, and a lamp unit (not shown) having necessary parts such as a light source and a reflector is arranged in the lamp chamber 14a to form a vehicle lamp 1.
  • the light emitted from the light source is reflected by, for example, a reflector, transmitted through the light transmitting portion 11 of the cover 3, and is irradiated to the outside.
  • the welded leg portion 8A that protrudes in a direction substantially orthogonal to the design surface portion 7 is provided. If so, the welding leg portion 8A is inclined with respect to the welding surface 6a of the joining protrusion 6 (see FIG. 5 (A)). Therefore, the bonding strength of the cover 3 to the lamp housing 2 may decrease.
  • burr B which is a protruding portion due to melting generated by melting the joint portion 8b and the joining protrusion 6, and the welding leg portion 8B is crimped.
  • the tip of the welded leg portion 8B is positioned close to the vehicle body 100, so that the burr B is easily visible from the gap between the vehicle body 100 and the cover 3.
  • the design surface portion 7 has a wide portion that greatly protrudes outward from the welded leg portion 8B, so that the wide shielding portion 9C itself is covered. There is a risk of reduced visibility. Further, since the overall size of the design surface portion 7 is set to a constant size according to the size and shape of the vehicle body 100, if a large shielding portion 9C is provided, the welded leg portion 8B is provided on the inner circumference accordingly. It becomes necessary to provide it on the side, and the size of the light transmitting portion 11 becomes smaller.
  • the welded leg portion 8 is composed of a continuous portion 12 continuous with the design surface portion 7 and a bent portion 13 bent toward the outer peripheral side of the design surface portion 7 with respect to the continuous portion 12. (See FIG. 5 (D)).
  • the continuous portion 12 and the bent portion 13 as described above are provided, so that the direction in which the welding leg portion 8 is pressed against the welding surface 6a of the lamp housing 2 is due to hot plate welding. Since the bent portion 13 is bent with respect to the continuous portion 12 in the direction approaching the crimping direction S at the time of joining, a high joining strength of the cover 3 to the lamp housing 2 can be ensured.
  • the burr B which is a protruding portion due to melting, is difficult to be visually recognized from the gap between the vehicle body 100 and the cover 3, and the burr B is difficult to be visually recognized. It is not necessary to provide a wide shielding portion 9C for this purpose, and visibility can be improved.
  • the size of the light transmitting portion 11 of the design surface portion 7 is not reduced, and the irradiation region of the light emitted from the light source can be widened.
  • the protruding direction P of the continuous portion 12 from the design surface portion 7 is made larger than 30 degrees with respect to the crimping direction S when the cover 3 is crimped to the lamp housing 2.
  • the size of the light transmitting portion 11 which is a portion on the inner peripheral side of the welded leg portion 8 of the design surface portion 7 becomes large, the transmission region of the light cover 3 emitted from the light source becomes large, and the irradiation region becomes even larger. It can be increased to improve the brightness.
  • the knotting direction Q of the bent portion 13 coincides with the crimping direction S
  • the outer peripheral portion of the design surface portion 7 since the outer peripheral portion of the design surface portion 7 is located outside the welded leg portion 8, the outer peripheral portion of the design surface portion 7 functions as a shielding portion 9 for shielding the welded leg portion 8, and the welded surface of the welded leg portion 8 is provided.
  • the joint portion with 6a is difficult to be visually recognized from the gap between the vehicle body 100 and the cover 3, and visibility can be improved.
  • burrs B generated by welding are generated at equal sizes on the outer peripheral side and the inner peripheral side of the welded leg portion 8. easy. Therefore, it is not necessary to form a groove or a wall in the joining protrusion 6 to prevent excessive protrusion of the burr B, and the welding surface 6a can be formed in a flat shape, so that the shape of the lamp housing 2 can be changed. It becomes simple and the lamp housing 2 can be easily molded.
  • the length of the bent portion 13 in the knotting direction Q is defined as X
  • the length of the continuous portion 12 in the protruding direction P from the design surface portion 7 is defined as Y
  • the case where X and Y are substantially the same length is used as a reference. (See FIG. 6).
  • the bent portion 13 has a joined portion 8b that is melted at the time of joining, and the length of the bent portion 13 in the knotting direction Q is shorter after joining than before joining.
  • X is the length before joining, and is set to, for example, 2 mm to 3 mm in consideration of the presence of the joined portion 8b to be melted.
  • Y is, for example, about 3 mm.
  • the arrangement recess 101 for arranging the outer peripheral portion of the vehicle lamp 1 in the vehicle body 100 becomes a shallow recess, and the design restrictions of the vehicle body 100 are reduced.
  • the arrangement recess 101 is formed, for example, by drawing using a metal material.
  • the cover 3 is formed by injection molding using a mold, since the total length of X and Y is not excessively long, the sink marks generated in the protrusion forming portion 10 in the cooling process of injection molding are reduced. , High molding accuracy of the cover 3 can be ensured.
  • the burr B becomes difficult to be visually recognized from the gap between the vehicle body 100 and the cover 3, and the visibility can be improved.
  • the shielding portion 9 is positioned close to the hot plate 70 when heated by the hot plate 70 in hot plate welding, so that the shielding portion 9 is deformed by heat. Since the joint portion 8b and the shield portion 9 are located close to each other, the burr B generated by the melting of the joint portion 8b may adhere to the shield portion 9. However, since the total length of X and Y is not excessively shortened, it is possible to prevent such deformation of the shielding portion 9 due to heat and adhesion of burrs B to the shielding portion 9.
  • the arrangement recess 101 for arranging the outer peripheral portion of the vehicle lamp 1 in the vehicle body 100 becomes a deep recess, which may cause design restrictions on the vehicle body 100. ..
  • the burr B is easily visible from the gap between the vehicle body 100 and the cover 3, which may hinder visibility from the viewpoint of visibility.
  • the shielding portion 9 is located away from the hot plate 70 when heated by the hot plate 70 in hot plate welding, so that the shielding portion 9 is less likely to be deformed by heat and is joined. Since the portion 8b and the shielding portion 9 are positioned apart from each other, it is possible to prevent the burr B from adhering to the shielding portion 9.
  • the arrangement recess 101 for arranging the outer peripheral portion of the vehicle lamp 1 in the vehicle body 100 becomes a deep recess, which may cause design restrictions on the vehicle body 100. ..
  • the burr B becomes difficult to be visually recognized from the gap between the vehicle body 100 and the cover 3, and the visibility can be improved.
  • the shielding portion 9 is located away from the hot plate 70 when heated by the hot plate 70 in hot plate welding, so that the shielding portion 9 is less likely to be deformed by heat and is joined. Since the portion 8b and the shielding portion 9 are positioned apart from each other, it is possible to prevent the burr B from adhering to the shielding portion 9.
  • the above shows an example in which the design surface portion 7 is provided with the shielding portion 9 located on the outer peripheral side of the welding leg portion 8, but the cover 3 has the welding leg portion 8 protruding from the outer peripheral portion of the design surface portion 7 to shield the design surface portion 7.
  • the configuration may be such that the part 9 does not exist.
  • the shielding portion 9 does not exist, the visibility does not decrease due to the presence of the shielding portion 9 itself, and the visibility can be improved.
  • the size of the light transmitting portion 11 can be increased by the amount that the welding leg portion 8 protrudes from the outer peripheral portion of the design surface portion 7, and the irradiation region of the light emitted from the light source can be further widened. Can be done.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention comprend un boîtier de lampe (2) qui présente un espace intérieur et dans lequel est formée une surface de soudure (8a), et un couvercle (3) pour recouvrir l'espace intérieur, le couvercle étant relié au boîtier de lampe par un soudage à plaque chaude ; le couvercle étant pourvu d'une partie surface décorative (7) ayant une surface externe (3a) faisant face à l'extérieur du véhicule et une partie patte de soudure (8) faisant saillie à partir de la partie surface décorative et soudée à une surface de soudure ; et la partie patte de soudure étant pourvue d'une section de connexion (12) continue à la section surface décorative et d'une section courbée (13) qui est courbée vers le côté périphérique externe de la section surface décorative et dans laquelle une section pointe (8b) est soudée à la surface de soudure.
PCT/JP2020/022866 2019-06-21 2020-06-10 Lampe de véhicule et couvercle pour lampe de véhicule WO2020255827A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021528143A JP7430185B2 (ja) 2019-06-21 2020-06-10 車輌用灯具及び車輌用灯具のカバー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-115321 2019-06-21
JP2019115321 2019-06-21

Publications (1)

Publication Number Publication Date
WO2020255827A1 true WO2020255827A1 (fr) 2020-12-24

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PCT/JP2020/022866 WO2020255827A1 (fr) 2019-06-21 2020-06-10 Lampe de véhicule et couvercle pour lampe de véhicule

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JP (1) JP7430185B2 (fr)
CN (1) CN112109335B (fr)
WO (1) WO2020255827A1 (fr)

Citations (2)

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JP2001297608A (ja) * 2000-04-13 2001-10-26 Koito Mfg Co Ltd 車両用灯具の製造装置
JP2014123547A (ja) * 2012-11-21 2014-07-03 Koito Mfg Co Ltd 車両用灯具

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JP3272956B2 (ja) * 1996-07-08 2002-04-08 株式会社小糸製作所 車両用灯具における灯具ボディとレンズの接着構造及びその接着方法
JPH10334705A (ja) * 1997-05-30 1998-12-18 Koito Mfg Co Ltd 車両用灯具の溶着脚
JP2000016160A (ja) * 1998-06-26 2000-01-18 Ichikoh Ind Ltd 車両用装置
JP3929628B2 (ja) * 1998-12-15 2007-06-13 株式会社小糸製作所 車両用灯具
JP3961737B2 (ja) * 2000-02-29 2007-08-22 株式会社小糸製作所 車両用灯具およびその製造方法
JP2002075021A (ja) * 2000-09-01 2002-03-15 Ichikoh Ind Ltd 車両用灯具
JP2002075023A (ja) * 2000-09-01 2002-03-15 Ichikoh Ind Ltd 車両用灯具
JP3972621B2 (ja) * 2001-10-09 2007-09-05 市光工業株式会社 車両用灯具およびそのレーザ溶着方法
JP2003257217A (ja) * 2002-03-01 2003-09-12 Ichikoh Ind Ltd 車両用灯具
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JP4678829B2 (ja) * 2005-01-26 2011-04-27 株式会社小糸製作所 車輌用灯具の製造方法
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JP2014123547A (ja) * 2012-11-21 2014-07-03 Koito Mfg Co Ltd 車両用灯具

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Publication number Publication date
JP7430185B2 (ja) 2024-02-09
CN112109335A (zh) 2020-12-22
JPWO2020255827A1 (fr) 2020-12-24
CN112109335B (zh) 2022-05-31

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