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JP5572906B2 - VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD - Google Patents
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JP5572906B2 - VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD - Google Patents

VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD Download PDF

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Publication number
JP5572906B2
JP5572906B2 JP2010143812A JP2010143812A JP5572906B2 JP 5572906 B2 JP5572906 B2 JP 5572906B2 JP 2010143812 A JP2010143812 A JP 2010143812A JP 2010143812 A JP2010143812 A JP 2010143812A JP 5572906 B2 JP5572906 B2 JP 5572906B2
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JP
Japan
Prior art keywords
housing
lens
laser
inner peripheral
portions
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2010143812A
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Japanese (ja)
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JP2012009257A (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 JP2010143812A priority Critical patent/JP5572906B2/en
Priority to KR1020110061137A priority patent/KR101797764B1/en
Priority to US13/168,065 priority patent/US8556479B2/en
Publication of JP2012009257A publication Critical patent/JP2012009257A/en
Application granted granted Critical
Publication of JP5572906B2 publication Critical patent/JP5572906B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B29C66/114—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
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12445—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue having the tongue on the side
    • 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12449—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being asymmetric
    • 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • 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
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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

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  • 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８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. 8, 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、前記樹脂製ハウジングの開口端部には、その周方向に複数の凹部が形成されており、前記樹脂製装飾部材の外周部には、その周方向に前記複数の凹部に挿入された複数の爪部が形成されており、前記樹脂製レンズは、前記複数の爪部を押圧し内側に変位させる複数の押圧部を含んでおり、前記複数の爪部は、前記複数の押圧部により押圧され内側に変位させられて前記複数の凹部の内周面に押し付けられており、前記複数の凹部の内周面と当該複数の凹部の内周面に押し付けられた前記複数の爪部とは、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. In the vehicular lamp provided with a resin decorative member disposed indoors, a plurality of concave portions are formed in the circumferential direction at the opening end of the resin housing, and the outer periphery of the resin decorative member The part is formed with a plurality of claw parts inserted into the plurality of concave parts in the circumferential direction, and the resin lens includes a plurality of pressing parts that press the plurality of claw parts and displace them inward. The plurality of claw portions are pressed by the plurality of pressing portions and displaced inwardly and pressed against the inner peripheral surfaces of the plurality of concave portions, and the inner peripheral surfaces of the plurality of concave portions and the plurality of the plurality of concave portions. The plurality of claws pressed against the inner peripheral surface of the recess It is characterized by being laser-welded.

請求項１に記載の発明によれば、複数の爪部が複数の押圧部により押圧され内側に変位させられて複数の凹部の内周面に押し付けられた状態でレーザー溶着されている、すなわち、装飾部材（複数の爪部）がレンズ（複数の押圧部）とハウジング（複数の凹部の内周面）との間に強固に挟持された状態でレーザー溶着されているため、ハウジング及びレンズと装飾部材とを単純にレーザー溶着する従来と比べ、車両用灯具の構成要素（ハウジング、レンズ、エクステンション）が相対的に移動して各要素間に摩擦が発生するの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 plurality of claw portions are pressed by the plurality of pressing portions and displaced inward and are laser welded in a state of being pressed against the inner peripheral surfaces of the plurality of concave portions, Since the decorative member (plural claw portions) is laser-welded in a state of being firmly sandwiched between the lens (plural pressing portions) and the housing (inner peripheral surfaces of the plurality of concave portions), the housing, the lens and the ornament Compared to the conventional method of simply laser welding the members, it is possible to prevent or reduce the occurrence of friction between the components due to the relative movement of the components (housing, lens, extension) of the vehicle lamp Become. 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。   According to a second aspect of the present invention, in the first aspect of the present invention, the laser welding is performed by a laser beam from a laser head unit held by a robot arm or a galvano scan optical system fixed to a predetermined frame. It is characterized by laser welding using a laser beam.

請求項２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 2 is an example of laser welding. Therefore, other laser welding can be used.

請求項３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、装飾部材の外周部に周方向に形成された複数の透明爪部を、ハウジングの開口端部に周方向に形成された複数の凹部に挿入する工程と、前記複数の爪部を押圧し内側に変位させる複数の押圧部を含むレンズと前記ハウジングとを加圧し、前記レンズの外周部と前記ハウジングの開口端部とを当接させるとともに、前記複数の押圧部により前記複数の爪部を押圧し内側に変位させて前記複数の凹部の内周面に押し付ける工程と、レーザー光が前記レンズ及び前記複数の透明爪部を透過して前記レンズが当接した前記ハウジングの開口端部及び前記複数の透明爪部が押し付けられた前記複数の凹部の内周面を照射し、前記ハウジングの開口端部とこれに当接した前記レンズ及び前記複数の凹部の内周面と当該複数の凹部の内周面に押し付けられた前記複数の爪部とを溶融して接合するように、レーザー光を走査する工程と、を含んでおり、前記複数の透明爪部は、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 third aspect of the present invention, in the method of manufacturing a vehicular lamp using laser welding, a plurality of transparent claw portions formed in the circumferential direction on the outer peripheral portion of the decorative member are arranged in the circumferential direction on the opening end portion of the housing. A step of inserting into the plurality of recesses formed on the lens, and pressing the plurality of claw portions and pressing the lens and the housing including a plurality of pressing portions that are displaced inward, and the outer peripheral portion of the lens and the opening of the housing A step of bringing the end portions into contact with each other, pressing the plurality of claw portions with the plurality of pressing portions and displacing the claw portions inward to press the inner portions of the plurality of recesses; Irradiates the opening end of the housing through which the lens is in contact with the transparent claw and the inner peripheral surface of the plurality of recesses pressed against the plurality of transparent claw, and the opening end of the housing and this Abut Scanning the laser beam so as to melt and join the inner peripheral surface of the lens and the plurality of recesses and the plurality of claw portions pressed against the inner peripheral surface of the plurality of recesses. The transparent claw portions are thermoplastic resin transparent portions that are transparent to laser light, the lenses are thermoplastic resin lenses that are transparent to laser light, and the housing is The housing is made of a thermoplastic resin that absorbs laser light.

請求項３に記載の発明によれば、ハウジング及びレンズと装飾部材とを単純にレーザー溶着する従来と比べ、車両用灯具の構成要素（ハウジング、レンズ、エクステンション）が相対的に移動して各要素間に摩擦が発生するの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）を製造することが可能となる。   According to the third aspect of the present invention, the components (housing, lens, and extension) of the vehicular lamp are relatively moved as compared with the conventional case in which the housing, the lens, and the decorative member are simply laser-welded. Vehicle lamps that can prevent or reduce the friction between them (i.e., prevent the lens from being damaged due to the friction, affect the appearance of the appearance, or generate frictional noise or It is possible to manufacture a vehicular lamp that can be reduced.

また、請求項３に記載の発明によれば、複数の押圧部の作用により装飾部材の四方が略均等に押圧される構成であるため、装飾部材のハウジングに対する位置決めを自動的に行うことが可能となる。また、上下左右方向に関し、エクステンションの取付姿勢が自動的に適正姿勢となるように制御することが可能となる。   According to the invention described in claim 3, since the four sides of the decorative member are pressed substantially uniformly by the action of the plurality of pressing portions, the decorative member can be automatically positioned with respect to the housing. It becomes. Further, with respect to the vertical and horizontal directions, it is possible to control the extension mounting posture so as to automatically become a proper posture.

また、請求項３に記載の発明によれば、レンズのハウジングに対する位置決めを行うだけで、装飾部材のハウジングに対する位置決めを自動的に行うことが可能となる（従来、レーザー溶着を適切に行うために、レンズの装飾部材に対する位置決め、及び、ハウジングの装飾部材に対する位置決めの二つを正確に行わなければならなかった）。   According to the third aspect of the present invention, it is possible to automatically position the decorative member relative to the housing only by positioning the lens relative to the housing (conventionally, in order to appropriately perform laser welding). The positioning of the lens relative to the decorative member and the positioning of the housing relative to the decorative member had to be performed accurately).

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. （ａ）図１に示した車両用灯具１０のＡ−Ａ断面図（レンズ３０を除く）、（ｂ）図１に示した車両用灯具１０のＡ−Ａ断面図（レンズ３０を含む）である。(A) AA sectional view (excluding the lens 30) of the vehicular lamp 10 shown in FIG. 1, (b) AA sectional view (including the lens 30) of the vehicular lamp 10 shown in FIG. is there. 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の爪部４１をエクステンション４０の内側から見た図である。FIG. 6 is a view of a claw portion 41 of the extension 40 as viewed from the inside of the extension 40. エクステンション４０の爪部４１の断面図である。4 is a cross-sectional view of a claw portion 41 of an extension 40. FIG. エクステンション４０の爪部４１を透明爪部と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 in order to make the nail | claw part 41 of the extension 40 into a transparent claw part. レンズ３０及びエクステンション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。5 is a cross-sectional view for explaining a process of laser welding the lens 30 and the extension 40 and the housing 20. 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（ｂ）に示すように、ハウジング２０は、開口端部２１を含んでいる。ハウジング２０の開口端部２１には、その周方向に複数の凹部２１ａが形成されている。   The housing 20 is a thermoplastic resin housing that absorbs laser light. As shown in FIG. 2B, the housing 20 includes an open end 21. A plurality of recesses 21 a are formed in the opening end 21 of the housing 20 in the circumferential direction.

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３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（ｂ）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。   The lens 30 is a thermoplastic resin lens that is transmissive to laser light. For example, as shown in FIG. 3, 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 FIG. 2B, an annular rib 34 including an annular joint surface 34 a at the tip is formed on the outer peripheral portion of the lens 30.

図２（ｂ）に示すように、環状リブ３４の先端部の内周側には、エクステンション４０の複数の爪部４１を押圧し内側（図２（ｂ）中右側）に変位させる複数の押圧部３４ｂが形成されている。レンズ３０の外周部（環状接合面３４ａ）とハウジング２０（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。   As shown in FIG. 2B, on the inner peripheral side of the tip of the annular rib 34, a plurality of presses that press the plurality of claw portions 41 of the extension 40 and displace them inward (right side in FIG. 2B). A portion 34b is formed. The outer peripheral portion (annular joint surface 34 a) of the lens 30 and the housing 20 (opening end portion 21) are laser-welded in a state where they are in contact with each other over the entire periphery thereof to constitute the lamp chamber 50.

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１、図２（ｂ）、図４に示すように、エクステンション４０の外周部には、その周方向にハウジング２０の複数の凹部２１ａに挿入される複数の爪部４１が形成されている。例えば、爪部４１は８〜１０箇所程度に設けられている（図１参照）。なお、車両用灯具１０が小型であれば、爪部４１は４箇所程度に設けてもよい。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。   The extension 40 is a decorative member arranged in the lamp chamber 50. As shown in FIGS. 1, 2 (b), and 4, a plurality of claw portions 41 that are inserted into the plurality of recesses 21 a of the housing 20 are formed in the outer circumferential portion of the extension 40 in the circumferential direction. For example, the nail | claw part 41 is provided in about 8-10 places (refer FIG. 1). If the vehicular lamp 10 is small, the claw portions 41 may be provided at about four locations. The extension 40 is made of, for example, a thermoplastic resin that is transparent to laser light.

図５に示すように、各爪部４１は、基端部４１ａがエクステンション４０の外周部に固定されるとともに先端部４１ｂが自由端とされた片持ち梁形状の爪部（約１０ｍｍ幅）である。各爪部４１は、エクステンション４０の各押圧部３４ｂにより押圧され内側（図５中右側）に変位させられる（約１．０ｍｍ）。基端部４１ａの両側には、溝幅約２ｍｍの溝４１ｃが形成されている。   As shown in FIG. 5, each claw portion 41 is a cantilever-shaped claw portion (about 10 mm wide) in which the base end portion 41a is fixed to the outer peripheral portion of the extension 40 and the distal end portion 41b is a free end. is there. Each nail | claw part 41 is pressed by each press part 34b of the extension 40, and is displaced inside (right side in FIG. 5) (about 1.0 mm). Grooves 41c having a groove width of about 2 mm are formed on both sides of the base end portion 41a.

例えば、図６に示す筒状のマスクＭ（例えば樹脂製、ゴム製、ＳＵＳ製バネ材等）をエクステンション４０の各爪部４１に装着した状態で（図４参照）、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の各爪部４１は、レーザー光に対し透過性を有する透明爪部とされている。同様に、図５に示す円形領域内も透明部とされている。   For example, the cylindrical mask M shown in FIG. 6 (for example, resin, rubber, SUS spring material, etc.) is attached to each claw portion 41 of the extension 40 (see FIG. 4), and is applied to the entire surface of the extension 40. Each claw portion 41 of the extension 40 is a transparent claw portion that is transmissive to the laser light by performing a mirror surface treatment such as aluminum vapor deposition. Similarly, the circular area shown in FIG. 5 is also a transparent portion.

図７に示すように、各凹部２１ａの内周面と当該各凹部２１ａの内周面に押し付けられた各爪部４１とは、その当接箇所において、レーザー溶着されている。   As shown in FIG. 7, the inner peripheral surface of each concave portion 21a and each claw portion 41 pressed against the inner peripheral surface of each concave portion 21a are laser-welded at the contact points.

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、ハウジング２０を受具（図示せず）にセットする。   First, the housing 20 is set on a receiving tool (not shown).

次に、図２（ａ）に示すように、エクステンション４０の各爪部４１を内側（図２（ａ）中右側）に変位させて（弾性変形させて）、ハウジング２０の各凹部２１ａに挿入する。エクステンション４０の各爪部４１はその復元力により外側（図２（ａ）中左側）に変位してハウジング２０の各凹部２１ａの内周面に係合する。これにより、エクステンション４０はハウジング２０に固定される。なお、後述のように、エクステンション４０のハウジング２０に対する位置決めは自動的に行われるため、ここではエクステンション４０のハウジング２０に対する位置決めを正確に行う必要はない。   Next, as shown in FIG. 2A, each claw portion 41 of the extension 40 is displaced inwardly (rightward in FIG. 2A) (elastically deformed) and inserted into each recess 21 a of the housing 20. To do. Each claw portion 41 of the extension 40 is displaced outward (left side in FIG. 2A) by its restoring force and engages with the inner peripheral surface of each recess 21 a of the housing 20. Thereby, the extension 40 is fixed to the housing 20. As will be described later, since the positioning of the extension 40 with respect to the housing 20 is automatically performed, it is not necessary to accurately position the extension 40 with respect to the housing 20 here.

次に、図２（ｂ）に示すように、レンズ３０とハウジング２０とを加圧し（又はレンズ３０の自重により）、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とをその全周にわたり互いに当接（密着）させた状態で保持する。   Next, as shown in FIG. 2B, the lens 30 and the housing 20 are pressurized (or by the weight of the lens 30), and the outer peripheral portion (annular joint surface 34 a) of the lens 30 and the open end 21 of the housing 20. Are held in contact with each other over the entire circumference.

これにより、レンズ３０の各押圧部３４ｂがエクステンション４０の各爪部４１を押圧しこれを内側（図２（ｂ）中右側）に変位させて各凹部２１ａの内周面に押し付ける。これにより、エクステンション４０（複数の爪部４１）がレンズ３０の各押圧部３４ｂとハウジング２０の各凹部２１ａの内周面との間に強固に挟持される。   Thereby, each pressing part 34b of the lens 30 presses each nail | claw part 41 of the extension 40, displaces this inside (right side in FIG.2 (b)), and presses it on the internal peripheral surface of each recessed part 21a. Thereby, the extension 40 (the plurality of claw portions 41) is firmly sandwiched between each pressing portion 34b of the lens 30 and the inner peripheral surface of each recess 21a of the housing 20.

また、エクステンション４０は、各押圧部３４ｂの作用により四方から略均等に押圧されるため、エクステンション４０（各爪部４１）のハウジング２０に対する位置決めが自動的に行われる。また、上下左右方向に関し、エクステンションの取付姿勢が自動的に適正姿勢となるように制御される。   Further, since the extension 40 is pressed almost uniformly from the four directions by the action of each pressing portion 34b, the positioning of the extension 40 (each claw portion 41) with respect to the housing 20 is automatically performed. In addition, with respect to the vertical and horizontal directions, the extension mounting posture is automatically controlled to be an appropriate posture.

次に、図７に示すように、レーザー光Ｒａｙがレンズ３０及び各透明爪部４１を透過してレンズ３０が当接したハウジング２０の開口端部２１及び各透明爪部４１が押し付けられた各凹部２１ａの内周面を照射し、ハウジング２０の開口端部２１とこれに当接したレンズ３０（環状接合面３４ａ）及び各凹部２１ａの内周面と当該各凹部２１ａの内周面に押し付けられた各爪部４１とを溶融して接合するように、レーザー光Ｒａｙを走査する。   Next, as shown in FIG. 7, the laser beam Ray is transmitted through the lens 30 and each transparent claw portion 41, and the opening end portion 21 of the housing 20 and the transparent claw portion 41 that are in contact with the lens 30 are pressed. Irradiates the inner peripheral surface of the recess 21a, and presses against the opening end 21 of the housing 20, the lens 30 (annular joint surface 34a) in contact therewith, the inner peripheral surface of each recess 21a, and the inner peripheral surface of each recess 21a. Laser beam Ray is scanned so that each nail | claw part 41 obtained was fuse | melted and joined.

レンズ３０とハウジング２０とは加圧され、かつ、レンズ３０（環状接合面３４ａ）とハウジング２０（開口端部２１）とがその全周にわたり互いに当接（密着）している（図２参照（ｂ）参照）ため、その全周にわたりレーザー溶着が行われると、レンズ３０がハウジング２０に対し沈み込む（約０．５ｍｍ程度）。   The lens 30 and the housing 20 are pressurized, and the lens 30 (annular joint surface 34a) and the housing 20 (open end 21) are in contact with each other over the entire circumference (see FIG. 2). Therefore, when laser welding is performed over the entire circumference, the lens 30 sinks into the housing 20 (about 0.5 mm).

レンズ３０がハウジング２０に対し沈み込むと、レンズ３０の押圧部３４ｂとこれが当接するエクステンション４０の爪部４１とはそれぞれ斜面であるため（図７参照）、レンズ３０の各押圧部３４ｂがエクステンション４０の各爪部４１をさらに強く押圧しこれを内側（図７中右側）に変位させて各凹部２１ａの内周面により強く押し付ける。これにより、エクステンション４０（各爪部４１）が各押圧部３４ｂと各凹部２１ａの内周面との間にさらに強固に挟持される。   When the lens 30 sinks into the housing 20, the pressing portion 34 b of the lens 30 and the claw portion 41 of the extension 40 with which the lens 30 abuts are inclined surfaces (see FIG. 7), so that each pressing portion 34 b of the lens 30 is the extension 40. Each of the claw portions 41 is further strongly pressed and displaced inward (on the right side in FIG. 7) to be pressed more strongly against the inner peripheral surface of each recess 21a. Thereby, the extension 40 (each claw part 41) is pinched still more firmly between each press part 34b and the internal peripheral surface of each recessed part 21a.

また、レンズ３０がハウジング２０に対し沈み込むと、エクステンション４０は、各押圧部３４ｂの作用により四方からさらに強く押圧されるため、エクステンション４０（各爪部４１）のハウジング２０に対する位置決めが自動的に行われる。また、上下左右方向に関し、エクステンションの取付姿勢が自動的に適正姿勢となるように制御される。   Further, when the lens 30 sinks into the housing 20, the extension 40 is further strongly pressed from the four directions by the action of each pressing portion 34b, so that the positioning of the extension 40 (each claw portion 41) with respect to the housing 20 is automatically performed. Done. In addition, with respect to the vertical and horizontal directions, the extension mounting posture is automatically controlled to be an appropriate posture.

以上により、エクステンション４０（各爪部４１）が各押圧部３４ｂと各凹部２１ａの内周面との間に強固に挟持された状態でレーザー溶着された車両用灯具１０を製造することが可能となる。   As described above, it is possible to manufacture the vehicular lamp 10 that is laser-welded in a state where the extension 40 (each claw portion 41) is firmly sandwiched between each pressing portion 34b and the inner peripheral surface of each recess 21a. Become.

以上説明したように、本実施形態によれば、各爪部４１が各押圧部３４ｂにより押圧され内側に変位させられて各凹部２１ａの内周面に押し付けられた状態でレーザー溶着されている、すなわち、エクステンション４０（各爪部４１）がレンズ３０（各押圧部３４ｂ）とハウジング２０（各凹部２１ａの内周面）との間に強固に挟持された状態でレーザー溶着されているため、ハウジング２１０及びレンズ２２０と装飾部材２３０とを単純にレーザー溶着する従来（図８参照）と比べ、車両用灯具１０の構成要素（ハウジング２０、レンズ３０、エクステンション４０）が相対的に移動して各要素間に摩擦が発生するの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, each claw portion 41 is pressed by each pressing portion 34b, displaced inward, and laser welded in a state of being pressed against the inner peripheral surface of each recess 21a. That is, the extension 40 (each claw portion 41) is laser-welded in a state of being firmly sandwiched between the lens 30 (each pressing portion 34b) and the housing 20 (inner peripheral surface of each recess 21a). 210 and the lens 220 and the decorative member 230 are simply laser-welded (see FIG. 8), the components of the vehicular lamp 10 (housing 20, lens 30, extension 40) are moved relative to each other. It is possible to prevent or reduce the occurrence of friction between them. 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（ｂ）等参照）、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。   Further, according to the present embodiment, since the extension 40 is arranged at the end of the inner diameter of the lens 30 (see FIG. 2B, etc.), the vehicle with a good appearance that the welding marks of the extension 40 are hardly noticeable in front view. The lamp 10 can be configured.

また、本実施形態によれば、ハウジング２１０及びレンズ２２０と装飾部材２３０とを単純にレーザー溶着する従来（図８参照）と比べ、車両用灯具１０の構成要素（ハウジング２０、レンズ３０、エクステンション４０）が相対的に移動して各要素間に摩擦が発生するの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）を製造することが可能となる。   In addition, according to the present embodiment, the components of the vehicular lamp 10 (housing 20, lens 30, extension 40) are compared with the conventional case (see FIG. 8) in which the housing 210, the lens 220, and the decorative member 230 are simply laser-welded. ) Can move relative to each other to prevent or reduce friction between the elements, that is, the vehicular lamp 10 (that is, the lens is damaged due to the friction and affects the appearance) Thus, it becomes possible to manufacture a vehicular lamp that can prevent or reduce problems such as the generation of frictional noise.

また、本実施形態によれば、各押圧部３４ｂの作用によりエクステンション４０の四方が略均等に押圧される構成であるため、エクステンション４０のハウジング２０に対する位置決めを自動的に行うことが可能となる。また、上下左右方向に関し、エクステンション４０の取付姿勢が自動的に適正姿勢となるように制御することが可能となる。   In addition, according to the present embodiment, the four sides of the extension 40 are pressed substantially uniformly by the action of each pressing portion 34b, so that the extension 40 can be automatically positioned with respect to the housing 20. Further, with respect to the vertical and horizontal directions, it is possible to control the extension 40 so that the mounting posture of the extension 40 automatically becomes an appropriate posture.

また、本実施形態によれば、レンズ３０のハウジング２０に対する位置決めを行うだけで、エクステンション４０のハウジング２０に対する位置決めを自動的に行うことが可能となる（従来、レーザー溶着を適切に行うために、レンズ２２０の装飾部材２３０に対する位置決め、及び、ハウジング２１０の装飾部材２３０に対する位置決めの二つを正確に行わなければならなかった。図８参照）。   Further, according to the present embodiment, it is possible to automatically position the extension 40 with respect to the housing 20 only by positioning the lens 30 with respect to the housing 20 (conventionally, in order to appropriately perform laser welding, The positioning of the lens 220 with respect to the decorative member 230 and the positioning of the housing 210 with respect to the decorative member 230 had to be performed accurately (see FIG. 8).

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、装飾部材が、鏡面処理が施されたエクステンション４０である例について説明したが、本発明はこれに限定されない。例えば、装飾部材はインナーレンズ又は透明エクステンションであってもよい。   In the above-described embodiment, the example in which the decorative member is the extension 40 that has been subjected to the mirror finish has been described, but the present invention is not limited thereto. For example, the decorative member may be an inner lens or a transparent extension.

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、２１ａ…凹部、３０…レンズ、３４…環状リブ、３４ａ…環状接合面、３４ｂ…押圧部、４０…エクステンション、４１…爪部（透明爪部）、４１ａ…基端部、４１ｂ…先端部、４１ｃ…溝、５０…灯室   DESCRIPTION OF SYMBOLS 10 ... Vehicle lamp, 20 ... Housing, 21 ... Open end part, 21a ... Recessed part, 30 ... Lens, 34 ... Annular rib, 34a ... Annular joint surface, 34b ... Pressing part, 40 ... Extension, 41 ... Claw part (Transparent Claw part), 41a ... proximal end part, 41b ... tip part, 41c ... groove, 50 ... lamp chamber

Claims (3)

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、
前記樹脂製ハウジングの開口端部には、その周方向に複数の凹部が形成されており、
前記樹脂製装飾部材の外周部には、その周方向に前記複数の凹部に挿入された複数の爪部が形成されており、
前記樹脂製レンズは、前記複数の爪部を押圧し内側に変位させる複数の押圧部を含んでおり、
前記複数の爪部は、前記複数の押圧部により押圧され内側に変位させられて前記複数の凹部の内周面に押し付けられており、
前記複数の凹部の内周面と当該複数の凹部の内周面に押し付けられた前記複数の爪部とは、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,
A plurality of recesses are formed in the circumferential direction of the opening end of the resin housing,
A plurality of claw portions inserted into the plurality of concave portions in the circumferential direction are formed on the outer peripheral portion of the resin decorative member,
The resin lens includes a plurality of pressing portions that press the plurality of claw portions and displace them inward,
The plurality of claw portions are pressed by the plurality of pressing portions and displaced inward to be pressed against inner peripheral surfaces of the plurality of concave portions,
The vehicular lamp, wherein the inner peripheral surfaces of the plurality of recesses and the plurality of claw portions pressed against the inner peripheral surfaces of the plurality of recesses are laser-welded. 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に記載の車両用灯具。   2. The laser welding according to claim 1, wherein the laser welding is laser welding by 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. Vehicle lamps. 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、
装飾部材の外周部に周方向に形成された複数の透明爪部を、ハウジングの開口端部に周方向に形成された複数の凹部に挿入する工程と、
前記複数の爪部を押圧し内側に変位させる複数の押圧部を含むレンズと前記ハウジングとを加圧し、前記レンズの外周部と前記ハウジングの開口端部とを当接させるとともに、前記複数の押圧部により前記複数の爪部を押圧し内側に変位させて前記複数の凹部の内周面に押し付ける工程と、
レーザー光が前記レンズ及び前記複数の透明爪部を透過して前記レンズが当接した前記ハウジングの開口端部及び前記複数の透明爪部が押し付けられた前記複数の凹部の内周面を照射し、前記ハウジングの開口端部とこれに当接した前記レンズ及び前記複数の凹部の内周面と当該複数の凹部の内周面に押し付けられた前記複数の爪部とを溶融して接合するように、レーザー光を走査する工程と、
を含んでおり、
前記複数の透明爪部は、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,
Inserting a plurality of transparent claws formed in the circumferential direction on the outer peripheral portion of the decorative member into a plurality of concave portions formed in the circumferential direction on the opening end of the housing;
The lens including a plurality of pressing portions that press the plurality of claw portions to be displaced inward and the housing are pressurized, the outer peripheral portion of the lens and the opening end of the housing are brought into contact with each other, and the plurality of pressings Pressing the plurality of claw portions with a portion and displacing them to the inside to press against the inner peripheral surfaces of the plurality of recesses; and
Laser light passes through the lens and the plurality of transparent claws, and illuminates the opening end of the housing where the lens contacts and the inner peripheral surfaces of the plurality of recesses pressed against the transparent claws. The opening end portion of the housing, the lens in contact with the housing, the inner peripheral surfaces of the plurality of recesses, and the plurality of claw portions pressed against the inner peripheral surfaces of the plurality of recesses are melted and joined. And a step of scanning with laser light,
Contains
The plurality of transparent claw parts are thermoplastic resin transparent parts 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.
JP2010143812A 2010-06-24 2010-06-24 VEHICLE LIGHT, AND VEHICLE LIGHT MANUFACTURING METHOD Expired - Fee Related JP5572906B2 (en)

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