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JP5572905B2 - VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD - Google Patents
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JP5572905B2 - VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD - Google Patents

VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD Download PDF

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Publication number
JP5572905B2
JP5572905B2 JP2010143811A JP2010143811A JP5572905B2 JP 5572905 B2 JP5572905 B2 JP 5572905B2 JP 2010143811 A JP2010143811 A JP 2010143811A JP 2010143811 A JP2010143811 A JP 2010143811A JP 5572905 B2 JP5572905 B2 JP 5572905B2
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Japan
Prior art keywords
housing
lens
decorative member
resin
laser
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Expired - Fee Related
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JP2010143811A
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Japanese (ja)
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JP2012009256A (en
Inventor
和晃 鉾田
吉裕 財津
辰也 梅山
崇 赤羽
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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Publication date
Application filed by Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Priority to JP2010143811A priority Critical patent/JP5572905B2/en
Priority to KR1020110061137A priority patent/KR101797764B1/en
Priority to US13/168,065 priority patent/US8556479B2/en
Publication of JP2012009256A publication Critical patent/JP2012009256A/en
Application granted granted Critical
Publication of JP5572905B2 publication Critical patent/JP5572905B2/en
Expired - Fee Related legal-status Critical Current
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    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1661—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/747—Lightning equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、車両用灯具及び車両用灯具製造方法に係り、特にハウジング及びレンズと装飾部材との間に発生する摩擦に起因してレンズが傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具及び当該車両用灯具を製造する方法に関する。   The present invention relates to a vehicular lamp and a vehicular lamp manufacturing method, and in particular, the lens is damaged due to the friction generated between the housing and the lens and the decorative member, affecting the appearance of the lens, and the frictional sound is generated. The present invention relates to a vehicular lamp capable of preventing or reducing such troubles and a method of manufacturing the vehicular lamp.

従来、図１０に示すように、ハウジング２１０の開口端部２１１及びレンズ２２０の外周部２２１と装飾部材２３０の外周部２３１とをレーザー溶着することで構成された車両用灯具２００が知られている（例えば、特許文献１参照）。   Conventionally, as shown in FIG. 10, a vehicular lamp 200 configured by laser welding an opening end portion 211 of a housing 210 and an outer peripheral portion 221 of a lens 220 and an outer peripheral portion 231 of a decorative member 230 is known. (For example, refer to Patent Document 1).

特開２００６−１１４３８３号公報JP 2006-114383 A

しかしながら、上記構成の車両用灯具２００においては、ハウジング２１０及びレンズ２２０と装飾部材２３０とは、レーザー溶着される箇所以外の部分であっても全周にわたって互いに密着した構成であるため、車両走行時の振動等の影響によりその密着部分において摩擦が発生し、これに起因してレンズ２２０が傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を生ずる恐れがある。   However, in the vehicular lamp 200 having the above-described configuration, the housing 210, the lens 220, and the decorative member 230 are configured to be in close contact with each other over the entire circumference even in a portion other than a portion where laser welding is performed. Friction is generated at the close contact portion due to the influence of the vibration of the lens, and the lens 220 may be damaged due to this, and the appearance may be affected, or a frictional noise may be generated.

本発明は、このような事情に鑑みてなされたものであり、ハウジング及びレンズと装飾部材との間に発生する摩擦に起因してレンズが傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具及び当該車両用灯具を製造する方法を提供することを目的とする。   The present invention has been made in view of such circumstances, and the lens is damaged due to the friction generated between the housing and the lens and the decorative member, affecting the appearance of the lens, and the frictional sound is generated. An object of the present invention is to provide a vehicular lamp capable of preventing or reducing problems such as the above and a method of manufacturing the vehicular lamp.

上記課題を解決するため、請求項１に記載の発明は、開口端部を含む樹脂製ハウジングと、外周部が前記開口端部にレーザー溶着されて灯室を構成する樹脂製レンズと、前記灯室内に配置された樹脂製装飾部材と、を備えた車両用灯具において、前記樹脂製装飾部材は、接合部と非接合部とが周方向に交互に連続する外周部を含んでおり、前記樹脂製装飾部材の接合部と前記樹脂製ハウジングの開口端部とは、前記樹脂製装飾部材の非接合部と前記樹脂製レンズ及び前記樹脂製ハウジングとの間に空隙を保った状態で、レーザー溶着されていることを特徴とする。   In order to solve the above-mentioned problem, the invention described in claim 1 includes a resin housing including an opening end, a resin lens whose outer peripheral portion is laser-welded to the opening end to form a lamp chamber, and the lamp. A vehicle lamp comprising a resin decorative member disposed in a room, wherein the resin decorative member includes an outer peripheral portion in which joining portions and non-joining portions are alternately continued in a circumferential direction; Laser welding in a state in which a gap between the non-joint portion of the resin decorative member and the resin lens and the resin housing is maintained between the joint portion of the decorative member and the opening end portion of the resin housing. It is characterized by being.

請求項１に記載の発明によれば、樹脂製装飾部材の非接合部と樹脂製レンズ及び樹脂製ハウジングとの間の空隙の作用により、樹脂製レンズ及び樹脂製ハウジングと樹脂製装飾部材のうちレーザー溶着されない箇所とは互いに密着しない構成であるため、ハウジング及びレンズと装飾部材との間に発生する摩擦を防止又は低減することが可能となる。これにより、当該摩擦に起因してレンズが傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具を構成することが可能となる。   According to the first aspect of the present invention, the resin lens, the resin housing, and the resin decorative member are caused by the action of the gap between the non-joined portion of the resin decorative member and the resin lens and the resin housing. Since it is a structure which does not mutually adhere with the location which is not laser-welded, it becomes possible to prevent or reduce the friction which generate | occur | produces between a housing and a lens, and a decoration member. This makes it possible to configure a vehicular lamp that can prevent or reduce problems such as the appearance of the lens being damaged due to the friction and affecting the appearance of the lens, and the occurrence of frictional noise.

請求項２に記載の発明は、請求項１に記載の発明において、前記非接合部は、前記灯室側に凹んだ段差部であることを特徴とする。   According to a second aspect of the present invention, in the first aspect of the invention, the non-joining portion is a stepped portion that is recessed toward the lamp chamber.

請求項２に記載の発明によれば、樹脂製装飾部材の非接合部と樹脂製レンズ及び樹脂製ハウジングとの間の空隙（灯室側に凹んだ段差部）の作用により、樹脂製レンズ及び樹脂製ハウジングと樹脂製装飾部材のうちレーザー溶着されない箇所とは互いに密着しない構成であるため、ハウジング及びレンズと装飾部材との間に発生する摩擦を防止又は低減することが可能となる。これにより、当該摩擦に起因してレンズが傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具を構成することが可能となる。   According to the invention described in claim 2, the resin lens and the resin lens and the resin lens and the resin housing are formed by the action of the gap (stepped portion recessed toward the lamp chamber) between the resin lens and the resin housing. Since the resin housing and the resin decorative member are not in close contact with each other, the friction between the housing and the lens and the decorative member can be prevented or reduced. This makes it possible to configure a vehicular lamp that can prevent or reduce problems such as the appearance of the lens being damaged due to the friction and affecting the appearance of the lens, and the occurrence of frictional noise.

請求項３に記載の発明は、請求項１又は２に記載の発明において、前記レーザー溶着は、ロボットアームに保持されたレーザーヘッド部からのレーザー光、又は、所定フレームに固定されたガルバノスキャン光学系からのレーザー光によるレーザー溶着であることを特徴とする。   The invention according to claim 3 is the invention according to claim 1 or 2, wherein the laser welding is performed by laser light from a laser head unit held by a robot arm or galvano scan optics fixed to a predetermined frame. It is characterized by laser welding with a laser beam from the system.

請求項３は、レーザー溶着の例示である。したがって、他のレーザー溶着を用いることも可能である。   Claim 3 is an example of laser welding. Therefore, other laser welding can be used.

請求項４に記載の発明は、レーザー溶着を用いて車両用灯具を製造する方法において、透明部を含む接合部と非接合部とが周方向に交互に連続する外周部を含む装飾部材と開口端部を含むハウジングとを加圧し、前記装飾部材の非接合部と前記ハウジングとの間に空隙を保った状態で、かつ、前記装飾部材の前記透明部と前記ハウジングの開口端部とを互いに当接させた状態で保持する第１保持工程と、レーザー光が前記装飾部材の透明部を透過して前記装飾部材の透明部が当接した前記ハウジングの開口端部を照射し、前記ハウジングとこれに当接した前記装飾部材とを溶融して接合するように、レーザー光を走査する第１走査工程と、前記レンズと前記ハウジングとを加圧し、前記装飾部材の非接合部と前記レンズとの間に空隙を保った状態で、かつ、前記レンズの外周部と前記ハウジングの開口端部とを互いに当接させた状態で保持する第２保持工程と、レーザー光が前記レンズを透過して前記レンズの外周部が当接した前記ハウジングの開口端部を照射し、前記ハウジングとこれに当接した前記レンズとを溶融して接合するように、レーザー光を走査する第２走査工程と、を含んでおり、前記装飾部材の透明部は、レーザー光に対し透過性を有する熱可塑性樹脂製透明部であり、前記レンズは、レーザー光に対し透過性を有する熱可塑性樹脂製レンズであり、前記ハウジングは、レーザー光に対し吸収性を有する熱可塑性樹脂製ハウジングであることを特徴とする。   According to a fourth aspect of the present invention, in the method for manufacturing a vehicular lamp using laser welding, a decorative member and an opening including an outer peripheral portion in which a joined portion including a transparent portion and a non-joined portion are alternately continued in the circumferential direction. Pressurizing the housing including the end, and maintaining a gap between the non-joined portion of the decorative member and the housing, and the transparent portion of the decorative member and the open end of the housing A first holding step of holding the contact member in a contacted state; and a laser beam is transmitted through the transparent portion of the decorative member to irradiate an opening end portion of the housing where the transparent portion of the decorative member contacts, A first scanning step of scanning with a laser beam so as to melt and bond the decorative member in contact therewith, pressurizing the lens and the housing, and unbonding the decorative member and the lens Kept a gap between And a second holding step for holding the outer periphery of the lens and the open end of the housing in contact with each other, and laser light passes through the lens and the outer periphery of the lens A second scanning step of irradiating the open end of the housing in contact with the housing and scanning the laser beam so as to melt and bond the housing and the lens in contact with the housing. The transparent part of the member is a transparent part made of a thermoplastic resin that is transparent to laser light, the lens is a lens made of a thermoplastic resin that is transparent to laser light, and the housing is It is a housing made of a thermoplastic resin having absorbency.

請求項４に記載の発明によれば、レンズ及びハウジングと装飾部材のうちレーザー溶着されない箇所とが互いに密着せず、ハウジング及びレンズと装飾部材との間に発生する摩擦を防止又は低減することが可能な車両用灯具（すなわち、当該摩擦に起因してレンズが傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具）を製造する方法を提供することが可能となる。   According to the fourth aspect of the present invention, the lens and the housing and the decorative member that are not laser-welded are not in close contact with each other, and friction generated between the housing and the lens and the decorative member can be prevented or reduced. Method of manufacturing a possible vehicular lamp (that is, a vehicular lamp capable of preventing or reducing defects such as the appearance of the lens being damaged due to the friction and affecting the appearance or the generation of frictional noise) Can be provided.

以上説明したように、本発明によれば、ハウジング及びレンズと装飾部材との間に発生する摩擦に起因してレンズが傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具及び当該車両用灯具を製造する方法を提供することが可能となる。   As described above, according to the present invention, the lens is damaged due to friction generated between the housing and the lens and the decorative member, and the appearance appearance is affected. Alternatively, it is possible to provide a vehicular lamp that can be reduced and a method for manufacturing the vehicular lamp.

本発明の一実施形態である車両用灯具１０の正面図である。It is a front view of the vehicular lamp 10 which is one Embodiment of this invention. 図１に示した車両用灯具１０のＡ−Ａ断面図である。It is AA sectional drawing of the vehicle lamp 10 shown in FIG. 図１に示した車両用灯具１０のＢ−Ｂ断面図である。It is BB sectional drawing of the vehicle lamp 10 shown in FIG. 車両用灯具１０の斜視図（レーザー光学系を含む）である。1 is a perspective view of a vehicular lamp 10 (including a laser optical system). エクステンション４０の斜視図である。4 is a perspective view of an extension 40. FIG. エクステンション４０とハウジング２０とをレーザー溶着する工程を説明するための断面図である。6 is a cross-sectional view for explaining a process of laser welding the extension 40 and the housing 20. FIG. エクステンション４０の接合部４１ａに透明部４１ｃを形成するために用いられるマスクＭの例である。It is an example of the mask M used for forming the transparent part 41c in the joint part 41a of the extension 40. レンズ３０とハウジング２０とをレーザー溶着する工程を説明するための断面図である。6 is a cross-sectional view for explaining a process of laser welding the lens 30 and the housing 20. FIG. 車両用灯具１０の正面図である。1 is a front view of a vehicular lamp 10. FIG. 従来の車両用灯具２００の構成を説明するための断面図である。It is sectional drawing for demonstrating the structure of the conventional vehicle lamp 200. FIG.

以下、本発明の一実施形態である車両用灯具について、図面を参照しながら説明する。   Hereinafter, a vehicular lamp that is an embodiment of the present invention will be described with reference to the drawings.

本実施形態の車両用灯具１０は、例えば、車両後部の左右両側にそれぞれ配置されるリアコンビネーションランプ等の車両用灯具に適用されるものであり、図１〜図３に示すように、ハウジング２０、レンズ３０、エクステンション４０等を備えている。   The vehicular lamp 10 of the present embodiment is applied to a vehicular lamp such as a rear combination lamp disposed on each of the left and right sides of the rear part of the vehicle, for example, as shown in FIGS. , Lens 30, extension 40, and the like.

ハウジング２０は、レーザー光に対し吸収性を有する熱可塑性樹脂製ハウジングである。図２〜図４に示すように、ハウジング２０は、開口端部２１（環状接合面）を含んでいる。   The housing 20 is a thermoplastic resin housing that absorbs laser light. As shown in FIGS. 2 to 4, the housing 20 includes an open end 21 (annular joint surface).

レンズ３０は、レーザー光に対し透過性を有する熱可塑性樹脂製レンズである。レンズ３０は、例えば、図４に示すように、第１レンズ部３１と、屈曲レンズ部３２を介して第１レンズ部３１に連続する第２レンズ部３３と、を含んでいる。図２、図３に示すように、レンズ３０の外周部には、先端に環状接合面３４ａを含む環状リブ３４が形成されている。図２〜図４に示すように、レンズ３０の外周部（環状接合面３４ａ）とハウジング２０の開口端部２１とは、その全周にわたり互いに当接（密着）した状態でレーザー溶着されて灯室５０を構成している。   The lens 30 is a thermoplastic resin lens that is transmissive to laser light. For example, as illustrated in FIG. 4, the lens 30 includes a first lens unit 31 and a second lens unit 33 that is continuous with the first lens unit 31 via a bent lens unit 32. As shown in FIGS. 2 and 3, an annular rib 34 including an annular joint surface 34 a at the tip is formed on the outer periphery of the lens 30. As shown in FIGS. 2 to 4, the outer peripheral portion (annular joint surface 34 a) of the lens 30 and the opening end portion 21 of the housing 20 are laser welded in a state where they are in contact with each other over the entire periphery (lamp contact). A chamber 50 is formed.

エクステンション４０は、灯室５０内に配置された装飾部材である。図２、図３、図５に示すように、エクステンション４０は、透明部４１ｃを含む接合部４１ａと非接合部４１ｂ（例えば、灯室５０側に凹んだ段差部。図５参照）とが周方向に交互に連続する外周部４１を含んでいる。例えば、接合部４１ａは６〜１０箇所程度に設けられている（図１参照）。   The extension 40 is a decorative member arranged in the lamp chamber 50. As shown in FIGS. 2, 3, and 5, the extension 40 has a joint portion 41 a including a transparent portion 41 c and a non-joint portion 41 b (for example, a stepped portion recessed toward the lamp chamber 50, see FIG. 5). The outer peripheral part 41 which continues alternately in a direction is included. For example, the junction part 41a is provided in about 6-10 places (refer FIG. 1).

エクステンション４０は、例えば、レーザー光に対し透過性を有する熱可塑性樹脂により形成されている。例えば、図７に示すマスクＭ（例えばＳＵＳ製バネ材料）をエクステンション４０の接合部４１ａに装着した状態で、エクステンション４０の表面全域にアルミ蒸着等の鏡面処理を施すことで、エクステンション４０の接合部４１ａには、レーザー光に対し透過性を有する透明部４１ｃが形成されている（図６参照）。   The extension 40 is made of, for example, a thermoplastic resin that is transparent to laser light. For example, with the mask M shown in FIG. 7 (for example, a spring material made of SUS) attached to the joint portion 41a of the extension 40, the joint portion of the extension 40 is subjected to mirror surface treatment such as aluminum deposition over the entire surface of the extension 40. In 41a, a transparent portion 41c that is transparent to laser light is formed (see FIG. 6).

図３に示すように、エクステンション４０の接合部４１ａとハウジング２０の開口端部２１とは、エクステンション４０の非接合部４１ｂとレンズ３０及びハウジング２０との間に空隙Ｓ（例えば約０．５ｍｍ。図２参照）を保った状態で、レーザー溶着されている。   As shown in FIG. 3, the joint portion 41 a of the extension 40 and the opening end portion 21 of the housing 20 have a gap S (for example, about 0.5 mm) between the non-joint portion 41 b of the extension 40 and the lens 30 and the housing 20. Laser welding is performed while maintaining the state (see FIG. 2).

次に、車両用灯具１０の製造方法について説明する。   Next, a method for manufacturing the vehicular lamp 10 will be described.

以下のレーザー溶着を行うためのレーザー光学系としては、例えば、レーザー溶着に用いられるレーザー光を走査するガルバノミラー等（図示せず）を含むガルバノスキャンヘッド、又は、公知のロボットアームに保持されたレーザー射出装置を用いることが可能である。なお、レーザー光学系がガルバノスキャンヘッドである場合には、当該ガルバノスキャンヘッドは公知のフレーム等（図示せず）に固定されて用いられる。   As a laser optical system for performing the following laser welding, for example, a galvano scan head including a galvano mirror (not shown) for scanning laser light used for laser welding, or a known robot arm is used. A laser injection device can be used. When the laser optical system is a galvano scan head, the galvano scan head is used by being fixed to a known frame or the like (not shown).

まず、図６に示すように、エクステンション４０とハウジング２０とを加圧し、エクステンション４０の非接合部４１ｂとハウジング２０との間に空隙Ｓ（例えば約０．５ｍｍ）を保った状態で（図２、図３参照）、かつ、エクステンション４０の透明部４１ｃとハウジング２０の開口端部２１とを互いに当接させた状態で保持する。   First, as shown in FIG. 6, the extension 40 and the housing 20 are pressurized, and a gap S (for example, about 0.5 mm) is maintained between the non-joining portion 41b of the extension 40 and the housing 20 (FIG. 2). 3), and the transparent portion 41c of the extension 40 and the opening end portion 21 of the housing 20 are held in contact with each other.

そして、図４に示すように、レーザー光Ｒａｙがエクステンション４０の透明部４１ｃを透過して当該エクステンション４０の透明部４１ｃが当接したハウジング２０の開口端部２１を照射し、ハウジング２０とこれに当接したエクステンション４０の透明部４１ｃとを溶融して接合するように、レーザー光Ｒａｙを走査する（照射方向：例えば、図６に示す鉛直軸（図６中一点鎖線）に対し４５°±１５°）。   Then, as shown in FIG. 4, the laser beam Ray passes through the transparent portion 41c of the extension 40 and irradiates the opening end portion 21 of the housing 20 with which the transparent portion 41c of the extension 40 abuts. The laser beam Ray is scanned so that the transparent portion 41c of the abutting extension 40 is melted and joined (irradiation direction: for example, 45 ° ± 15 with respect to the vertical axis shown in FIG. 6 (dashed line in FIG. 6)). °).

次に、図８に示すように、レンズ３０とハウジング２０とを加圧し、エクステンション４０の非接合部４１ｂとレンズ３０との間に空隙Ｓ（例えば約０．５ｍｍ）を保った状態で（図２参照）、かつ、レンズ３０の外周部（環状接合面３４ａ）とハウジング２０の開口端部２１（のエクステンション４０の外側。図８参照）とを互いに当接させた状態で保持する。   Next, as shown in FIG. 8, the lens 30 and the housing 20 are pressurized, and a gap S (for example, about 0.5 mm) is maintained between the non-joint portion 41b of the extension 40 and the lens 30 (see FIG. 8). 2), and the outer peripheral portion (annular joint surface 34a) of the lens 30 and the opening end portion 21 of the housing 20 (outside of the extension 40; see FIG. 8) are held in contact with each other.

そして、レーザー光Ｒａｙがレンズ３０を透過して当該レンズ３０の外周部（環状接合面３４ａ）が当接したハウジング２０の開口端部２１を照射し、ハウジング２０とこれに当接したレンズ３０とを溶融して接合するように、レーザー光Ｒａｙを走査する（照射方向：例えば、図８に示す鉛直軸（図８中一点鎖線）に対し０°±６０°）。   The laser beam Ray passes through the lens 30 and irradiates the opening end 21 of the housing 20 with which the outer peripheral portion (annular joint surface 34a) of the lens 30 is in contact, and the housing 20 and the lens 30 in contact with the housing 20 The laser beam Ray is scanned so as to be melted and bonded (irradiation direction: 0 ° ± 60 ° with respect to the vertical axis shown in FIG. 8 (dashed line in FIG. 8)).

以上により、エクステンション４０の接合部４１ａとハウジング２０の開口端部２１とが、エクステンション４０の非接合部４１ｂとレンズ３０及びハウジング２０との間に空隙Ｓ（例えば約０．５ｍｍ）を保った状態でレーザー溶着された車両用灯具１０を構成することが可能となる。   As described above, the joint portion 41a of the extension 40 and the opening end portion 21 of the housing 20 maintain a gap S (for example, about 0.5 mm) between the non-joint portion 41b of the extension 40 and the lens 30 and the housing 20. It becomes possible to constitute the vehicular lamp 10 which has been laser-welded.

以上説明したように、本実施形態によれば、エクステンション４０の非接合部４１ｂとレンズ３０及びハウジング２０との間の空隙Ｓ（図２、図３参照）の作用により、レンズ３０及びハウジング２０とエクステンション４０のうちレーザー溶着されない箇所（非接合部４１ｂ）とは互いに密着しない構成であるため、ハウジング２０及びレンズ３０とエクステンション４０との間に発生する摩擦を防止又は低減することが可能となる。これにより、当該摩擦に起因してレンズ３０が傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具１０を構成することが可能となる。   As described above, according to the present embodiment, the lens 30 and the housing 20 are separated from each other by the action of the gap S (see FIGS. 2 and 3) between the non-joint portion 41 b of the extension 40 and the lens 30 and the housing 20. Since the portion of the extension 40 that is not laser-welded (non-bonding portion 41b) is configured not to be in close contact with each other, it is possible to prevent or reduce the friction generated between the housing 20 and the lens 30 and the extension 40. Accordingly, it is possible to configure the vehicular lamp 10 that can prevent or reduce problems such as the lens 30 being damaged due to the friction to affect the appearance of the lens 30 and the occurrence of frictional noise. .

また、本実施形態によれば、エクステンション４０がレンズ３０の内径ギリギリに配置されているため（図２、図３参照）、正面視でエクステンション４０の溶着跡がほとんど目立たない外観見栄えのよい車両用灯具１０を構成することが可能となる（図９参照）。   In addition, according to the present embodiment, since the extension 40 is arranged at the limit of the inner diameter of the lens 30 (see FIGS. 2 and 3), the appearance of the vehicle with a good appearance that the welding marks of the extension 40 are hardly noticeable in a front view. The lamp 10 can be configured (see FIG. 9).

また、本実施形態によれば、エクステンション４０の透明部４１ｃが正面視で背面側に隠れる形となるため（図６参照）、正面視で透明部４１ｃが視認されない外観見栄えのよい車両用灯具１０を構成することが可能となる。   Moreover, according to this embodiment, since the transparent part 41c of the extension 40 is hidden on the back side in a front view (see FIG. 6), the vehicular lamp 10 having a good appearance that the transparent part 41c is not visible in the front view. Can be configured.

また、本実施形態によれば、レンズ３０及びハウジング２０とエクステンションのうちレーザー溶着されない箇所（非接合部４１ｂ）とが互いに密着せず、ハウジング２０及びレンズ３０とエクステンション４０との間に発生する摩擦を防止又は低減することが可能な車両用灯具１０（すなわち、当該摩擦に起因してレンズ３０が傷ついて外観見栄えに影響を与えたり、摩擦音が発生する等の不具合を防止又は低減することが可能な車両用灯具１０）を製造する方法を提供することが可能となる。   Further, according to the present embodiment, the lens 30 and the housing 20 and the portion of the extension that is not laser-welded (non-joined portion 41 b) are not in close contact with each other, and the friction generated between the housing 20 and the lens 30 and the extension 40. Can prevent or reduce vehicular lamp 10 (that is, it is possible to prevent or reduce problems such as the appearance of the lens 30 being damaged due to the friction, affecting the appearance of the appearance, and the generation of frictional noise). It is possible to provide a method for manufacturing a vehicular lamp 10).

次に、変形例について説明する。   Next, a modified example will be described.

上記実施形態では、エクステンション４０の接合部４１ａには、レーザー光に対し透過性を有する透明部４１ｃが形成されている（図６参照）ように説明したが、本発明はこれに限定されない。例えば、エクステンション４０の表面全域（接合部４１も含む）にアルミ蒸着等の鏡面処理が施されていてもよい。すなわち、透明部４１ｃは形成されていなくてもよい。   In the above embodiment, it has been described that the joint portion 41a of the extension 40 is formed with the transparent portion 41c that is transparent to the laser beam (see FIG. 6), but the present invention is not limited to this. For example, the entire surface of the extension 40 (including the joint portion 41) may be subjected to mirror treatment such as aluminum vapor deposition. That is, the transparent part 41c may not be formed.

あるいは、透明部４１ｃに代えてレーザー光に対し吸収性を有する不透明部を設け、当該不透明部をハウジング２０だけでなく、レンズ３０にもレーザー溶着してもよい。   Alternatively, an opaque portion that absorbs laser light may be provided instead of the transparent portion 41c, and the opaque portion may be laser welded not only to the housing 20 but also to the lens 30.

上記実施形態はあらゆる点で単なる例示にすぎない。これらの記載によって本発明は限定的に解釈されるものではない。本発明はその精神または主要な特徴から逸脱することなく他の様々な形で実施することができる。   The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

１０…車両用灯具、２０…ハウジング、２１…開口端部、３０…レンズ、３４…環状リブ、３４ａ…環状接合面、４０…エクステンション、４１…外周部、４１ａ…接合部、４１ｂ…非接合部、４１ｃ…透明部、５０…灯室、Ｓ…空隙   DESCRIPTION OF SYMBOLS 10 ... Vehicle lamp, 20 ... Housing, 21 ... Open end, 30 ... Lens, 34 ... Annular rib, 34a ... Annular joining surface, 40 ... Extension, 41 ... Outer peripheral part, 41a ... Joining part, 41b ... Non-joining part , 41c ... transparent part, 50 ... light chamber, S ... gap

Claims (4)

開口端部を含む樹脂製ハウジングと、外周部が前記開口端部にレーザー溶着されて灯室を構成する樹脂製レンズと、前記灯室内に配置された樹脂製装飾部材と、を備えた車両用灯具において、
前記樹脂製装飾部材は、接合部と非接合部とが周方向に交互に連続する外周部を含んでおり、
前記樹脂製装飾部材の接合部と前記樹脂製ハウジングの開口端部とは、前記樹脂製装飾部材の非接合部と前記樹脂製レンズ及び前記樹脂製ハウジングとの間に空隙を保った状態で、レーザー溶着されていることを特徴とする車両用灯具。 A vehicle housing comprising a resin housing including an opening end, a resin lens whose outer peripheral portion is laser-welded to the opening end to form a lamp chamber, and a resin decorative member disposed in the lamp chamber In the lamp,
The resin decorative member includes an outer peripheral portion in which joined portions and non-joined portions are alternately continued in the circumferential direction,
The joint portion of the resin decorative member and the opening end portion of the resin housing have a gap between the non-joint portion of the resin decorative member and the resin lens and the resin housing. A vehicular lamp characterized by being laser welded. 前記非接合部は、前記灯室側に凹んだ段差部であることを特徴とする請求項１に記載の車両用灯具。   The vehicular lamp according to claim 1, wherein the non-joining portion is a stepped portion that is recessed toward the lamp chamber. 前記レーザー溶着は、ロボットアームに保持されたレーザーヘッド部からのレーザー光、又は、所定フレームに固定されたガルバノスキャン光学系からのレーザー光によるレーザー溶着であることを特徴とする請求項１又は２に記載の車両用灯具。   The laser welding is laser welding using a laser beam from a laser head unit held by a robot arm or a laser beam from a galvano scan optical system fixed to a predetermined frame. The vehicle lamp as described in 2. レーザー溶着を用いて車両用灯具を製造する方法において、
透明部を含む接合部と非接合部とが周方向に交互に連続する外周部を含む装飾部材と開口端部を含むハウジングとを加圧し、前記装飾部材の非接合部と前記ハウジングとの間に空隙を保った状態で、かつ、前記装飾部材の前記透明部と前記ハウジングの開口端部とを互いに当接させた状態で保持する第１保持工程と、
レーザー光が前記装飾部材の透明部を透過して前記装飾部材の透明部が当接した前記ハウジングの開口端部を照射し、前記ハウジングとこれに当接した前記装飾部材とを溶融して接合するように、レーザー光を走査する第１走査工程と、
前記レンズと前記ハウジングとを加圧し、前記装飾部材の非接合部と前記レンズとの間に空隙を保った状態で、かつ、前記レンズの外周部と前記ハウジングの開口端部とを互いに当接させた状態で保持する第２保持工程と、
レーザー光が前記レンズを透過して前記レンズの外周部が当接した前記ハウジングの開口端部を照射し、前記ハウジングとこれに当接した前記レンズとを溶融して接合するように、レーザー光を走査する第２走査工程と、
を含んでおり、
前記装飾部材の透明部は、レーザー光に対し透過性を有する熱可塑性樹脂製透明部であり、
前記レンズは、レーザー光に対し透過性を有する熱可塑性樹脂製レンズであり、
前記ハウジングは、レーザー光に対し吸収性を有する熱可塑性樹脂製ハウジングであることを特徴とするレーザー溶着を用いた車両用灯具製造方法。 In a method of manufacturing a vehicular lamp using laser welding,
Pressurizing the decorative member including the outer peripheral portion in which the joint portion including the transparent portion and the non-joined portion are alternately continuous in the circumferential direction and the housing including the open end, and between the non-joined portion of the decorative member and the housing A first holding step of holding the transparent portion of the decorative member and the opening end portion of the housing in contact with each other in a state where a gap is maintained in the
Laser light is transmitted through the transparent portion of the decorative member, irradiates the opening end of the housing where the transparent portion of the decorative member is in contact, and the housing and the decorative member in contact with the housing are melted and joined A first scanning step of scanning with laser light,
The lens and the housing are pressurized, and a gap is maintained between the non-joined portion of the decorative member and the lens, and the outer peripheral portion of the lens and the opening end of the housing are in contact with each other A second holding step for holding in a state of being held,
Laser light passes through the lens and irradiates the open end of the housing where the outer periphery of the lens is in contact, and the laser light is melted and bonded to the housing and the lens in contact with the housing. A second scanning step of scanning
Contains
The transparent part of the decorative member is a transparent part made of a thermoplastic resin having transparency to laser light,
The lens is a lens made of a thermoplastic resin having transparency to laser light,
A method for manufacturing a vehicular lamp using laser welding, wherein the housing is a thermoplastic resin housing that absorbs laser light.
JP2010143811A 2010-06-24 2010-06-24 VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD Expired - Fee Related JP5572905B2 (en)

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