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JP2003123511A - Vehicle lighting - Google Patents

Vehicle lighting

Info

Publication number
JP2003123511A
JP2003123511A JP2001311317A JP2001311317A JP2003123511A JP 2003123511 A JP2003123511 A JP 2003123511A JP 2001311317 A JP2001311317 A JP 2001311317A JP 2001311317 A JP2001311317 A JP 2001311317A JP 2003123511 A JP2003123511 A JP 2003123511A
Authority
JP
Japan
Prior art keywords
housing
outer lens
laser
welding
concave
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.)
Pending
Application number
JP2001311317A
Other languages
Japanese (ja)
Inventor
Kenichi Asaka
賢一 浅香
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ichikoh Industries Ltd
Original Assignee
Ichikoh Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ichikoh Industries Ltd filed Critical Ichikoh Industries Ltd
Priority to JP2001311317A priority Critical patent/JP2003123511A/en
Publication of JP2003123511A publication Critical patent/JP2003123511A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • 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
    • 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
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • 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
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C66/12461—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being rounded, i.e. U-shaped or C-shaped
    • 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat 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
    • B29C66/542—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
    • B29C66/65—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 with a relative motion between the article and the welding tool
    • B29C66/652—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 with a relative motion between the article and the welding tool moving the welding tool around the fixed article
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • 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
    • 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
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/863—Robotised, e.g. mounted on a robot arm
    • 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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
    • 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
    • B29C65/1687—Laser beams making use of light guides
    • 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
    • B29C66/70—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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0008—Anti-static agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • 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
    • B29L2009/00—Layered products
    • 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
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • 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)
  • Robotics (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

(57)【要約】 【課題】 簡単な溶着作業にも拘わらず、外観上の品質
の低下を伴うことなく、アウタレンズのハウジングへの
固定を、高位置決め精度の下で確実に行うことができる
こと。 【解決手段】 アウタレンズ２およびハウジング４は、
ハウジング４の外周部に沿って形成された凸条部２０
を、アウタレンズ２の外周部に沿って形成された凹条部
２１に嵌合させると共に、アウタレンズ２側から照射さ
れるレーザ光１３による凸条部２０と凹条部２１との間
の全周に亘るレーザ溶着（溶着面Ａ）により固定されて
いる。 (57) [Problem] To be able to reliably fix an outer lens to a housing with high positioning accuracy without a decrease in appearance quality despite simple welding work. SOLUTION: An outer lens 2 and a housing 4 are
A ridge 20 formed along the outer periphery of the housing 4
Is fitted into a concave streak 21 formed along the outer peripheral portion of the outer lens 2, and the entire periphery between the convex streak 20 and the concave streak 21 by the laser light 13 irradiated from the outer lens 2 side. It is fixed by laser welding (welding surface A) over it.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】この発明は、ヘッドランプや
リヤコンビランプ等に適用される、アウタレンズがレー
ザ溶着によりハウジングに固定されている車両用灯具に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp having an outer lens fixed to a housing by laser welding, which is applied to a head lamp, a rear combination lamp and the like.

【０００２】[0002]

【従来の技術】車両用灯具では、アウタレンズが、透明
な熱可塑性樹脂材で構成されると共に、ハウジングと共
働して灯室を画成するように前記ハウジングの開口部を
覆うようにして固定されている。2. Description of the Related Art In a vehicular lamp, an outer lens is made of a transparent thermoplastic resin and fixed so as to cover an opening of the housing so as to cooperate with the housing to define a lamp chamber. Has been done.

【０００３】そして、このときのアウタレンズのハウジ
ングへの固定手段としては、振動溶着、超音波溶着、レ
ーザ溶着等に代表される溶着が短時間で接合が可能であ
り、接着剤やねじ等の金属部品を使用しないので、それ
にかかるコストや重量増、環境汚染らの問題が発生しな
いことから、主流になりつつある。As a means for fixing the outer lens to the housing at this time, welding represented by vibration welding, ultrasonic welding, laser welding or the like can be joined in a short time, and a metal such as an adhesive or a screw can be used. Since no parts are used, there is no problem of cost, weight increase, and environmental pollution, and it is becoming the mainstream.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、振動溶
着や超音波溶着は、図４に示すように、アウタレンズ２
の環状リブ３の先端とハウジング４の平坦面との溶着と
なり、溶着部付近に溶着バリや糸引き５が現出するばか
りでなく、この部分Ｔが広いダミー幅となってアウタレ
ンズ２の表面側から観察することができ、ひいては外観
上の品質の低下を招く、という課題を有している。However, as shown in FIG. 4, the outer lens 2 is used for vibration welding or ultrasonic welding.
The tip of the annular rib 3 and the flat surface of the housing 4 are welded to each other, and not only the welding burr and the string 5 are exposed in the vicinity of the welded portion, but also this portion T has a wide dummy width and is located on the surface side of the outer lens 2. Therefore, there is a problem that it is possible to observe from the above, and eventually the quality of the appearance is deteriorated.

【０００５】また、レーザ溶着は、特開平１１−３４８
１３２号公報に開示されており、図５に示すように、ア
ウタレンズ２およびハウジング４を重ね合わせて受け治
具９内にセットし、位置決めして重ね合わせ方向（図中
矢印で示す）に若干加圧すると共に、レーザ射出部８か
ら可視のレーザ光等の出力を適宜調整し、アウタレンズ
２の背面に設けた環状リブ３に、アウタレンズ２の表面
から照射して環状リブ３をハウジング４に溶着してい
る。Laser welding is also disclosed in Japanese Patent Laid-Open No. 11-348.
As disclosed in Japanese Unexamined Patent Publication No. 132, as shown in FIG. 5, the outer lens 2 and the housing 4 are superposed and set in the receiving jig 9, and positioned and slightly applied in the superposing direction (indicated by an arrow in the figure). While pressing, the output of visible laser light or the like from the laser emitting portion 8 is appropriately adjusted, and the annular rib 3 provided on the back surface of the outer lens 2 is irradiated from the surface of the outer lens 2 to weld the annular rib 3 to the housing 4. There is.

【０００６】ところが、このレーザ溶着は、受け治具９
内のクリアランスに起因してアウタレンズ２および／ま
たはハウジング４がセット時に位置ずれし易く、このた
め両者の固定位置を精度良く得るためにはそれなりに作
業が複雑で面倒になる、という課題を有している。However, this laser welding is performed by the receiving jig 9
Due to the inner clearance, the outer lens 2 and / or the housing 4 are likely to be displaced during setting, and therefore, there is a problem that the work is rather complicated and troublesome in order to accurately obtain the fixed position of both. ing.

【０００７】そこで、この発明は、簡単な溶着作業にも
拘わらず、外観上の品質の低下を伴うことなく、アウタ
レンズのハウジングへの固定を、高位置決め精度の下で
確実に行うことができる車両用灯具を提供することを目
的としている。Therefore, according to the present invention, despite the simple welding work, the outer lens can be securely fixed to the housing with high positioning accuracy without deterioration of the external quality. The purpose is to provide a lighting fixture.

【０００８】[0008]

【課題を解決するための手段】前記した目的を達成する
ため、請求項１の発明は、アウタレンズが、レーザ光に
対して透明な熱可塑性樹脂材で構成されると共に、レー
ザ光に対して吸収性のある熱可塑性樹脂材で構成された
ハウジングと共働して灯室を画成するように前記ハウジ
ングの開口部を覆うようにして固定されている車両用灯
具であって、前記アウタレンズおよびハウジングは、そ
のいずれか一方の外周部に沿って形成された凸条部を他
方の外周部に沿って形成された凹条部に嵌合させると共
に、前記アウタレンズ側から照射されるレーザ光による
前記凸条部と前記凹条部との間の全周に亘るレーザ溶着
により固定されていることを特徴とする。In order to achieve the above-mentioned object, the invention of claim 1 is such that the outer lens is made of a thermoplastic resin material transparent to laser light and absorbs the laser light. A vehicular lamp fixed so as to cover an opening of the housing so as to define a lamp chamber in cooperation with a housing made of a thermoplastic resin having flexibility, the outer lens and the housing. Is fitted with a ridge formed along one of the outer peripheries of the ridge formed along the outer periphery of the other, and the convex formed by the laser light emitted from the outer lens side. It is characterized in that it is fixed by laser welding over the entire circumference between the line portion and the concave line portion.

【０００９】このため請求項１の発明では、アウタレン
ズおよびハウジングは、凸条部と凹条部の相互嵌合によ
り相互に位置決めされる。そして、この位置決め状態で
は、アウタレンズおよびハウジングの多少傾いた状態で
も、位置ずれのない状態を保持でき、かつレーザ溶着時
の加圧力を保持できる。Therefore, according to the first aspect of the present invention, the outer lens and the housing are positioned relative to each other by the mutual fitting of the ridge and the groove. Further, in this positioning state, even if the outer lens and the housing are slightly inclined, it is possible to maintain a state in which there is no positional deviation, and it is possible to maintain the pressing force at the time of laser welding.

【００１０】凸条部は、ハウジング側に形成される場合
（前者の場合）は、レーザ光に対して吸収性のある熱可
塑性樹脂材で構成され、アウタレンズ側に形成される場
合（後者の場合）は、レーザ光に対して透明な熱可塑性
樹脂材で構成される。このとき凹条部は、相手部材に形
成され、前者の場合はアウタレンズに形成され、後者の
場合はハウジングに形成される。When the ridge portion is formed on the housing side (in the former case), it is made of a thermoplastic resin material that absorbs laser light, and when it is formed on the outer lens side (in the latter case). ) Is composed of a thermoplastic resin material transparent to laser light. At this time, the concave streak is formed on the mating member, on the outer lens in the former case, and on the housing in the latter case.

【００１１】そして前者の場合には、レーザ溶着は、ア
ウタレンズ側から照射されるレーザ光が凹条部形成部位
のアウタレンズを透過してハウジングの凸条部に到達す
ることにより行われる。In the former case, the laser welding is performed by the laser light emitted from the outer lens side passing through the outer lens in the recessed portion forming portion and reaching the protruding portion of the housing.

【００１２】すなわち、凸条部に到達したレーザ光は凸
条部に吸収されて熱に変換され、この熱で凸条部の照射
部位を溶解させる。この溶解熱は凹条部側にも伝播さ
れ、凹条部を同様に溶解させる。しかして、凸条部と凹
条部は、その溶解部同士が融合するレーザ溶着により接
合される。That is, the laser light that has reached the ridge is absorbed by the ridge and converted into heat, and this heat melts the irradiated portion of the ridge. This heat of fusion is also propagated to the side of the groove, and the groove is likewise melted. Then, the convex streak and the concave streak are joined by laser welding in which the melted portions are fused.

【００１３】また、後者の場合には、レーザ溶着は、ア
ウタレンズ側から照射されるレーザ光が凸条部形成部位
のアウタレンズを透過してハウジングの凹条部に到達す
ることにより行われる。In the latter case, the laser welding is performed by the laser light emitted from the outer lens side passing through the outer lens at the ridge forming portion and reaching the recess of the housing.

【００１４】すなわち、凹条部に到達したレーザ光は凹
条部に吸収されて熱に変換され、この熱で凹条部の照射
部位を溶解させる。この溶解熱は凸条部側にも伝播さ
れ、凸条部を同様に溶解させる。しかして、凸条部と凹
条部は、その溶解部同士が融合するレーザ溶着により接
合される。That is, the laser beam that has reached the groove is absorbed by the groove and converted into heat, and this heat melts the irradiated portion of the groove. This heat of dissolution is also propagated to the ridge portion side, and melts the ridge portion in the same manner. Then, the convex streak and the concave streak are joined by laser welding in which the melted portions are fused.

【００１５】アウタレンズは、このようなレーザ溶着を
凸条部の全周に亘って施すことによって、ハウジングの
開口部を覆うようにして固定される。The outer lens is fixed so as to cover the opening of the housing by applying such laser welding to the entire circumference of the convex portion.

【００１６】また、請求項２の発明は、請求項１に記載
の車両用灯具であって、前記凸条部および凹条部のいず
れか一方は、前記アウタレンズの平坦面に形成されてお
り、他方は、前記ハウジングの外周縁部に沿って形成さ
れる環状リブの先端部に形成されていることを特徴とす
る。The invention of claim 2 is the vehicular lamp according to claim 1, wherein either one of the convex streak and the concave streak is formed on a flat surface of the outer lens. The other is formed at the tip of an annular rib formed along the outer peripheral edge of the housing.

【００１７】このため請求項２の発明では、ハウジング
側にのみ環状リブを設けて、その先端部にレーザ溶着の
対象となる凸条部あるいは凹条部を設けたので、溶着面
がアウタレンズの表面に接近した位置となり、その分レ
ーザ溶着が容易で、高精度に行うことができる。Therefore, according to the second aspect of the present invention, the annular rib is provided only on the housing side, and the convex strip portion or the concave strip portion to be laser welded is provided at the tip end portion thereof. Therefore, the welding surface is the surface of the outer lens. Since the position is closer to the position, laser welding can be easily performed correspondingly, and high precision can be achieved.

【００１８】また、アウタレンズ側のレーザ溶着の対象
となる凸条部あるいは凹条部は、アウタレンズの平坦面
に形成されるので、レーザ溶着時の加圧がアウタレンズ
の何等の損傷を伴うことなく、充分大きくかつ安定して
付与することができる。Further, since the convex stripe or concave stripe to be laser welded on the outer lens side is formed on the flat surface of the outer lens, the pressure applied during laser welding does not cause any damage to the outer lens. It can be applied sufficiently large and stably.

【００１９】また、請求項３の発明は、請求項１または
２に記載の車両用灯具であって、前記凸条部は、湾曲先
端部を有する断面に形成されており、前記凹条部は、前
記湾曲先端部に相応する湾曲底部を有して形成されてい
ることを特徴とする。The invention according to claim 3 is the vehicle lamp according to claim 1 or 2, wherein the convex strip portion is formed in a cross section having a curved tip portion, and the concave strip portion is formed. And a curved bottom portion corresponding to the curved tip portion.

【００２０】このため請求項３の発明では、凸条部と凹
条部の嵌合が湾曲面同士の当接となるので、レーザ光は
前記湾曲面に照射されることになって広い照射範囲を確
保することができ、これによりレーザ溶着は、アウタレ
ンズおよびハウジングの、レーザ光が前記湾曲面の頂部
に照射される直立姿勢から湾曲面の側面に照射される傾
倒姿勢までの幅広い姿勢に対して充分強度を有する溶着
面を形成することができる。Therefore, in the third aspect of the present invention, the fitting of the ridges and the depressions causes the curved surfaces to come into contact with each other, so that the laser light is irradiated to the curved surfaces, so that a wide irradiation range is obtained. Therefore, the laser welding can be performed for a wide range of postures of the outer lens and the housing, from the upright posture in which the laser beam is irradiated to the apex of the curved surface to the tilted posture in which the side surface of the curved surface is irradiated. A welded surface having sufficient strength can be formed.

【００２１】[0021]

【発明の実施の形態】以下、本発明を、実施の形態に基
づいて具体的に説明する。なお、図４〜図６に示す部材
と同一機能を有する部材は、同一符号を付して説明す
る。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below based on the embodiments. Members having the same functions as the members shown in FIGS. 4 to 6 will be described with the same reference numerals.

【００２２】図１は、本発明の第１実施形態としての車
両用灯具１を示す。この車両用灯具１は、アウタレンズ
２が、透明な熱可塑性樹脂材で構成されると共に、不透
明な熱可塑性樹脂材で構成されたハウジング４と共働し
て灯室１１を画成するようにハウジング４の開口部を覆
うようにして固定されている。FIG. 1 shows a vehicular lamp 1 as a first embodiment of the present invention. In this vehicular lamp 1, the outer lens 2 is made of a transparent thermoplastic resin material, and a housing 4 is formed so as to cooperate with a housing 4 made of an opaque thermoplastic resin material to define a lamp chamber 11. It is fixed so as to cover the opening of No. 4.

【００２３】そして本実施形態では、アウタレンズ２お
よびハウジング４は、ハウジング４の外周部に沿って形
成された凸条部２０を、アウタレンズ２の外周部に沿っ
て形成された凹条部２１に嵌合させると共に、アウタレ
ンズ２側から照射されるレーザ光１３による凸条部２０
と凹条部２１との間の全周に亘るレーザ溶着（溶着面
Ａ）により固定されている。図１中、符号６は反射面、
符号８はレーザ射出部、符号１２は光源バルブである。In the present embodiment, in the outer lens 2 and the housing 4, the convex ridge portion 20 formed along the outer peripheral portion of the housing 4 is fitted into the concave ridge portion 21 formed along the outer peripheral portion of the outer lens 2. The projection 20 by the laser light 13 emitted from the outer lens 2 side
It is fixed by laser welding (welding surface A) over the entire circumference between the groove 21 and the concave portion 21. In FIG. 1, reference numeral 6 is a reflecting surface,
Reference numeral 8 is a laser emitting portion, and reference numeral 12 is a light source bulb.

【００２４】具体的には、アウタレンズ２は、素通しレ
ンズであり、アクリル樹脂（ＰＭＭＡ）やポリカーボネ
ート樹脂（ＰＣ）等の透明な熱可塑性樹脂材で形成され
ている。Specifically, the outer lens 2 is a transparent lens and is made of a transparent thermoplastic resin material such as acrylic resin (PMMA) or polycarbonate resin (PC).

【００２５】また、ハウジング４は、レーザ光１３に対
して吸収性のある熱可塑性樹脂材で構成される。このよ
うな熱可塑性樹脂材としては、レーザ光１３に対して吸
収性を有する着色料で着色された熱可塑性樹脂材があ
る。このときの着色料は、例えばカーボンブラックであ
り、樹脂材は、アウタレンズ２の樹脂材（ＰＭＭＡ、Ｐ
Ｃ等）との相溶性のある樹脂材が選択される。このよう
な樹脂材としては、例えばＡＢＳ樹脂、アクリロニトリ
ル・エチレンプロピレン・スチレン樹脂（ＡＥＳ）、ア
クリル・アクリロニトリル・スチレン樹脂（ＡＡＳ（ま
たはＡＳＡ））、アクリロニトリル・スチレン樹脂（Ａ
Ｓ）、ＰＣ樹脂、およびポリマーアロイがある。ポリマ
ーアロイは、例えばＰＣ／ＡＢＳ樹脂、ＰＣ／ＡＡＳ樹
脂、ＰＣ／ポリブチレンテレフタレート（ＰＢＴ）樹
脂、ＰＣ／ポリエチレンテレフタレート（ＰＥＴ）樹脂
等、あるいはＰＭＭＡ／ＡＢＳ樹脂、ＰＭＭＡ／ＡＡＳ
樹脂、ＰＭＭＡ／ＰＢＴ樹脂、ＰＭＭＡ／ＰＥＴ樹脂等
がある。The housing 4 is made of a thermoplastic resin material that absorbs the laser light 13. As such a thermoplastic resin material, there is a thermoplastic resin material colored with a colorant having an absorption property for the laser beam 13. The colorant at this time is, for example, carbon black, and the resin material is the resin material of the outer lens 2 (PMMA, P
A resin material compatible with C) is selected. Examples of such a resin material include ABS resin, acrylonitrile / ethylene propylene / styrene resin (AES), acrylic / acrylonitrile / styrene resin (AAS (or ASA)), and acrylonitrile / styrene resin (A
S), PC resin, and polymer alloy. Polymer alloys include, for example, PC / ABS resin, PC / AAS resin, PC / polybutylene terephthalate (PBT) resin, PC / polyethylene terephthalate (PET) resin, PMMA / ABS resin, PMMA / AAS, etc.
Resin, PMMA / PBT resin, PMMA / PET resin, etc. are available.

【００２６】また、ハウジング４は、前記以外の成分、
例えばガラス、シリカ、タルク、炭酸カルシウム等の無
機または有機物よりなるフィラー、帯電防止剤、耐侯安
定剤等の慣用の添加物の１種以上を樹脂材中に含有させ
ることもできる。The housing 4 has components other than those described above.
For example, one or more kinds of conventional additives such as glass, silica, talc, inorganic or organic filler such as calcium carbonate, antistatic agent, weather stabilizer, etc. may be contained in the resin material.

【００２７】また、凸条部２０は、ハウジング４の外周
縁部に沿って形成される環状リブ３の先端部に形成され
ており、凹条部２１は、アウタレンズ２の平坦裏面に形
成されている。環状リブ３は、ハウジング４の外周縁部
の全周に亘って同一樹脂材で一体に形成される。凹条部
２１は、図２（ａ）に示すように、例えば開口幅Ｔが環
状リブ３の厚さと略同等の０．８〜２．５ｍｍで、深さ
Ｈが０．２〜１．５ｍｍの湾曲底部を有して形成され、
凸条部２０は、凹条部２１の湾曲底部に相応する湾曲先
端部を有して形成されている。The ridge portion 20 is formed on the tip of the annular rib 3 formed along the outer peripheral edge of the housing 4, and the ridge portion 21 is formed on the flat back surface of the outer lens 2. There is. The annular rib 3 is integrally formed of the same resin material over the entire circumference of the outer peripheral edge of the housing 4. As shown in FIG. 2A, the groove 21 has an opening width T of 0.8 to 2.5 mm, which is substantially the same as the thickness of the annular rib 3, and a depth H of 0.2 to 1.5 mm. Formed with a curved bottom of
The ridge portion 20 is formed to have a curved tip portion corresponding to the curved bottom portion of the concave portion 21.

【００２８】また、本実施形態では、灯室１１を画成す
るハウジング４の内面は、その全体が反射面６に形成さ
れている。すなわち反射面６は、図１に示すように、環
状リブ３を含めたハウジング４の内面の全体に形成され
る。Further, in this embodiment, the inner surface of the housing 4 defining the lamp chamber 11 is entirely formed as the reflecting surface 6. That is, as shown in FIG. 1, the reflecting surface 6 is formed on the entire inner surface of the housing 4 including the annular rib 3.

【００２９】また、レーザ光１３は、アウタレンズ２内
の透過率が所定値以上となるような波長を有するものが
適宜選択される。このようなレーザ光１３として、半導
体レーザ（波長８０８ｎｍ、または９４０ｎｍ）があ
る。Further, the laser light 13 is appropriately selected so as to have a wavelength such that the transmittance inside the outer lens 2 becomes a predetermined value or more. As such laser light 13, there is a semiconductor laser (wavelength 808 nm or 940 nm).

【００３０】さらに、レーザ溶着は、図１に示すよう
に、凸条部２０と凹条部２１を相互嵌合させてアウタレ
ンズ２とハウジング４を相互に位置決めした状態でセッ
トした後、適宜の固定治具（図示せず）を用いてアウタ
レンズ２およびハウジング４を相互に漸近方向（図中、
矢印で示す）へ加圧しながら、アウタレンズ２側からレ
ーザ光１３を照射することにより行われる。このレーザ
溶着は、灯具１側を固定して、レーザ射出部８を移動さ
せるか、あるいはレーザ射出部８を固定して、灯具１側
を移動させる、さらにはレーザ射出部８と灯具１をそれ
ぞれ或割合で移動させるようにして、凸条部２０の全周
に亘って行われる。これらいずれの方法によるかは、ア
ウタレンズ２およびハウジング４の外周形状により、適
宜選択される。Further, in laser welding, as shown in FIG. 1, after the outer lens 2 and the housing 4 are set in a state in which the convex line portion 20 and the concave line portion 21 are fitted to each other and the outer lens 2 and the housing 4 are positioned relative to each other, appropriate fixing Using a jig (not shown), the outer lens 2 and the housing 4 are asymptotic to each other (in the figure,
It is performed by irradiating the laser light 13 from the outer lens 2 side while pressurizing (indicated by the arrow). In this laser welding, the lamp 1 side is fixed and the laser emitting part 8 is moved, or the laser emitting part 8 is fixed and the lamp 1 side is moved, and further, the laser emitting part 8 and the lamp 1 are respectively moved. It is carried out over the entire circumference of the ridge portion 20 so as to be moved at a certain ratio. Which of these methods is used is appropriately selected depending on the outer peripheral shapes of the outer lens 2 and the housing 4.

【００３１】このレーザ溶着においては、アウタレンズ
２は、透明な熱可塑性樹脂材で構成されているので、ア
ウタレンズ２側から照射されるレーザ光１３は、凹条部
２１形成部位のアウタレンズ２を透過してハウジング４
の凸条部２０に到達する。凸条部２０は、ハウジング４
と同様にレーザ光１３に対して吸収性を有する着色料を
含有する不透明な熱可塑性樹脂材で構成されているの
で、凸条部２０に到達したレーザ光１３は、凸条部２０
に吸収されて熱に変換され、この熱で凸条部２０の照射
部位を溶解させる。この溶解熱は、凹条部２１側にも伝
播され、凹条部２１を同様に溶解させる。しかして、凸
条部２０と凹条部２１は、その溶解部同士が融合するレ
ーザ溶着（溶着面Ａ）により凸条部２０の全周に亘って
接合され、この接合によりアウタレンズ２は、ハウジン
グ４の開口部を覆うようにして固定される。In this laser welding, since the outer lens 2 is made of a transparent thermoplastic resin material, the laser light 13 emitted from the outer lens 2 side passes through the outer lens 2 at the portion where the groove 21 is formed. Housing 4
Reaches the ridge portion 20 of. The protruding portion 20 is the housing 4
Similarly, the laser beam 13 that reaches the ridge portion 20 is formed of an opaque thermoplastic resin material containing a colorant having an absorptivity for the laser beam 13,
Is absorbed by the heat treatment and converted into heat, and this heat melts the irradiated portion of the ridge portion 20. This heat of fusion is also propagated to the side of the groove 21 and melts the groove 21 in the same manner. Then, the convex streak portion 20 and the concave streak portion 21 are joined to each other over the entire circumference of the convex streak portion 20 by laser welding (welding surface A) in which the melting portions are fused to each other, and by this joining, the outer lens 2 is attached to the housing. 4 is fixed so as to cover the opening.

【００３２】そしてこのレーザ溶着においては、アウタ
レンズ２およびハウジング４が、凸条部２０と凹条部２
１の相互嵌合により相互に位置決めされると共に、この
位置決め状態では、アウタレンズ２およびハウジング４
の多少傾いた状態（図２（ｂ））でも、位置ずれのない
状態を保持でき、かつレーザ溶着時の加圧力（図２
（ｂ）中、加圧方向を矢印で示す）を保持できる（図２
（ｃ））。これにより、位置決めやレーザ光１３の制御
（パワー、集光径など）に関する格別の高精度制御を要
すること無く、確実にレーザ溶着を実行することができ
る。In this laser welding, the outer lens 2 and the housing 4 are provided with the ridges 20 and the ridges 2.
The outer lens 2 and the housing 4 are positioned relative to each other by the mutual fitting of
2 (b) in a slightly inclined state, it is possible to maintain the state without misalignment, and the pressure applied during laser welding (see FIG. 2).
(B), the pressurizing direction is indicated by an arrow) (FIG. 2)
(C)). As a result, laser welding can be reliably performed without requiring special high-precision control regarding positioning and control of the laser light 13 (power, focused diameter, etc.).

【００３３】このようにして構成された車両用灯具１
は、格別の高精度制御を要することのない簡単な溶着作
業にも拘わらず、アウタレンズ２のハウジング４への固
定を、高位置決め精度の下で確実に行うことができる。The vehicular lamp 1 thus configured
Can securely fix the outer lens 2 to the housing 4 with high positioning accuracy, despite a simple welding work that does not require special high-precision control.

【００３４】また、車両用灯具１は、アウタレンズ２と
ハウジング４の溶着面Ａに、溶着バリや糸引きを現出す
ることがないので、これらに起因する外観上の品質の低
下が無い。Further, since the vehicular lamp 1 does not show welding burrs or stringing on the welding surface A of the outer lens 2 and the housing 4, there is no deterioration in the appearance quality due to these.

【００３５】また、車両用灯具１は、ハウジング４およ
びアウタレンズ２の各外周部に沿って形成された凸条部
２０および凹条部２１の相互当接部に溶着面Ａを形成す
るようにしたので、ハウジング４の内面の有効範囲の縮
小を伴うことも無い。Further, in the vehicular lamp 1, the welding surface A is formed at the mutual abutting portion of the ridge portion 20 and the ridge portion 21 formed along the outer peripheral portions of the housing 4 and the outer lens 2. Therefore, the effective range of the inner surface of the housing 4 is not reduced.

【００３６】また、車両用灯具１は、ハウジング４側に
のみ環状リブ３を設けて、その先端部にレーザ溶着の対
象となる凸条部２０を設けたので、溶着面Ａがアウタレ
ンズ２の表面に接近した位置となり、その分レーザ溶着
が容易で、高精度に行うことができる。Further, in the vehicular lamp 1, the annular rib 3 is provided only on the housing 4 side, and the ridge 20 to be laser-welded is provided at the tip of the annular rib 3. Therefore, the welding surface A is the surface of the outer lens 2. Since the position is closer to the position, laser welding can be easily performed correspondingly, and high precision can be achieved.

【００３７】その上、アウタレンズ２側のレーザ溶着の
対象となる凹条部２１は、アウタレンズ２の平坦面に形
成されるので、レーザ溶着時の加圧がアウタレンズ２の
何等の損傷を伴うことなく、充分大きくかつ安定して付
与することができる。仮に、凹条部２１がアウタレンズ
２に形成されたリブの先端部に形成される場合は、該リ
ブがレーザ溶着時の加圧によりひび割れや破損の畏れが
ある。Moreover, since the concave streak portion 21 to be laser-welded on the outer lens 2 side is formed on the flat surface of the outer lens 2, the pressure applied during laser welding does not cause any damage to the outer lens 2. It can be applied sufficiently large and stably. If the groove 21 is formed at the tip of the rib formed on the outer lens 2, the rib may be cracked or damaged due to the pressure applied during laser welding.

【００３８】このように車両用灯具１は、レーザ溶着が
容易で、高精度に行うことができること、およびレーザ
溶着時の加圧を充分大きくかつ安定して付与することが
できることにより、成形性の向上を図ることができる。As described above, in the vehicular lamp 1, since the laser welding is easy and can be performed with high accuracy, and the pressurization at the time of the laser welding can be applied sufficiently large and stably, the moldability is improved. It is possible to improve.

【００３９】また、車両用灯具１は、凸条部２０と凹条
部２１の嵌合が湾曲面同士の当接となるので、レーザ光
１３は前記湾曲面に照射されることになって広い照射範
囲を確保することができる。このためレーザ溶着は、ア
ウタレンズ２およびハウジング４の、レーザ光１３が前
記湾曲面の頂部に照射される直立姿勢（図１参照）から
湾曲面の側面に照射される傾倒姿勢（図２（ｃ）参照）
までの幅広い姿勢に対して充分強度を有する溶着面Ａを
形成することができ、これにより成形性が一段と向上し
たものとなっている。Further, in the vehicular lamp 1, the fitting of the ridge portion 20 and the ridge portion 21 causes the curved surfaces to come into contact with each other, so that the laser beam 13 is irradiated to the curved surface and is wide. The irradiation range can be secured. For this reason, the laser welding is performed from the upright posture (see FIG. 1) of the outer lens 2 and the housing 4 where the laser light 13 is irradiated to the apex of the curved surface to the tilted posture (FIG. 2C) where the side surface of the curved surface is irradiated. reference)
It is possible to form a welded surface A having a sufficient strength in a wide range of postures up to the above, whereby the formability is further improved.

【００４０】さらに、車両用灯具１は、図１に示すよう
に、反射面６を、環状リブ３を含めたハウジング４の内
面の全体に形成することができるので、ハウジング４の
内面の全体を反射機能を有する有効面として構成するこ
とができ、これによりリフレクタ設計時の設計自由度の
拡大を図ることができる。Further, in the vehicular lamp 1, as shown in FIG. 1, since the reflecting surface 6 can be formed on the entire inner surface of the housing 4 including the annular rib 3, the entire inner surface of the housing 4 can be formed. It can be configured as an effective surface having a reflection function, which can increase the degree of freedom in design when designing a reflector.

【００４１】図３は、本発明の第２実施形態としての車
両用灯具１０を示す。この車両用灯具１０は、凸条部２
０がアウタレンズ２側に形成されており、凹条部２１が
ハウジング４側に形成されている点が相違するだけで、
他の構成は前述した車両用灯具１と同様に構成されてい
る。このため車両用灯具１と同一の構成要素は、同一符
号を付してその説明を省略する。FIG. 3 shows a vehicular lamp 10 as a second embodiment of the present invention. This vehicular lamp 10 has a ridge 2
0 is formed on the outer lens 2 side, and the concave line portion 21 is formed on the housing 4 side.
Other configurations are similar to those of the vehicle lamp 1 described above. Therefore, the same components as those of the vehicle lamp 1 are designated by the same reference numerals, and the description thereof will be omitted.

【００４２】すなわち、車両用灯具１０では、凸条部２
０がアウタレンズ２の平坦裏面に形成されており、かつ
凹条部２１がハウジング４に形成される環状リブ３の先
端部に形成されている。そして、アウタレンズ２が、凸
条部２０を凹条部２１に嵌合させた状態で、アウタレン
ズ２側から照射されるレーザ光１３による凸条部２０と
凹条部２１との間の全周に亘るレーザ溶着（溶着面Ｂ）
によりハウジング４に固定されている。図３中の矢印
は、レーザ溶着時の加圧方向を示す。That is, in the vehicle lamp 10, the ridge portion 2
0 is formed on the flat back surface of the outer lens 2, and the concave streak portion 21 is formed on the tip end portion of the annular rib 3 formed in the housing 4. Then, the outer lens 2 is fitted to the concave streak portion 21 with the convex streak portion 20 on the entire circumference between the convex streak portion 20 and the concave streak portion 21 by the laser light 13 emitted from the outer lens 2 side. Laser welding over (welding surface B)
It is fixed to the housing 4 by. The arrow in FIG. 3 indicates the pressing direction during laser welding.

【００４３】このときのレーザ溶着は、図３に示すよう
に、アウタレンズ２側から照射されるレーザ光１３が凸
条部２０の形成部位のアウタレンズ２を透過して環状リ
ブ３の先端の凹条部２１に到達することにより行われ
る。In the laser welding at this time, as shown in FIG. 3, the laser beam 13 emitted from the outer lens 2 side passes through the outer lens 2 where the convex line portion 20 is formed, and the concave line at the tip of the annular rib 3 is formed. It is performed by reaching the part 21.

【００４４】すなわち、凹条部２１に到達したレーザ光
１３は凹条部２１に吸収されて熱に変換され、この熱で
凹条部２１の照射部位を溶解させる。この溶解熱は凸条
部２０側にも伝播され、凸条部２０を同様に溶解させ
る。しかして、凸条部２０と凹条部２１は、その溶解部
同士が融合するレーザ溶着（溶着面Ｂ）により接合され
る。That is, the laser light 13 that has reached the groove 21 is absorbed by the groove 21 and converted into heat, and this heat melts the irradiated portion of the groove 21. This heat of fusion is also propagated to the ridge portion 20 side, and melts the ridge portion 20 as well. Then, the convex streak portion 20 and the concave streak portion 21 are joined by laser welding (welding surface B) where the melting portions are fused.

【００４５】このように構成された車両用灯具１０は、
前述した車両用灯具１と同様の作用効果を奏することは
勿論である。特に、車両用灯具１０においても、ハウジ
ング４側にのみ環状リブ３を設けて、その先端部にレー
ザ溶着の対象となる凹条部２１を設けたので、溶着面Ｂ
がアウタレンズ２の表面に接近した位置となり、その分
レーザ溶着が容易で、高精度に行うことができる。The vehicular lamp 10 having the above structure is
As a matter of course, the same operational effects as those of the vehicle lamp 1 described above can be obtained. Particularly in the vehicular lamp 10, since the annular rib 3 is provided only on the housing 4 side and the concave streak portion 21 to be laser welded is provided at the tip end thereof, the welding surface B
Is closer to the surface of the outer lens 2, and the laser welding can be easily performed by that much, and can be performed with high accuracy.

【００４６】また、前述した実施形態では、反射面６を
ハウジング４の内面に形成したが、本発明は、これに限
定するものでなく、反射面６を灯室１１内に設けられる
別体のリフレクタとして構成したものも含むのは勿論の
ことである。Further, although the reflecting surface 6 is formed on the inner surface of the housing 4 in the above-mentioned embodiment, the present invention is not limited to this, and the reflecting surface 6 is provided as a separate body inside the lamp chamber 11. It goes without saying that the reflector is also included as a reflector.

【００４７】[0047]

【発明の効果】以上詳細に説明したように本発明によれ
ば次の効果を奏することができる。As described in detail above, according to the present invention, the following effects can be obtained.

【００４８】すなわち、請求項１の発明によれば、アウ
タレンズとハウジングが、凸条部と凹条部の相互嵌合に
より相互に位置決めされると共に、前記凸条部と凹条部
の相互当接部をレーザ溶着するようにしたので、簡単な
溶着作業にも拘わらず、外観上の品質の低下を伴うこと
なく、アウタレンズのハウジングへの固定を、高位置決
め精度の下で確実に行うことができる。That is, according to the first aspect of the present invention, the outer lens and the housing are positioned relative to each other by mutual fitting of the ridges and the ridges, and the ridges and the ridges are abutted against each other. Since the portions are laser-welded, the outer lens can be reliably fixed to the housing with high positioning accuracy without deterioration of the external appearance quality despite the simple welding work. .

【００４９】また、請求項２の発明によれば、ハウジン
グ側にのみ環状リブを設けて、その先端部にレーザ溶着
の対象となる凸条部あるいは凹条部を設けたので、溶着
面がアウタレンズの表面に接近した位置となり、その分
レーザ溶着が容易で、高精度に行うことができること、
およびアウタレンズ側のレーザ溶着の対象となる凸条部
あるいは凹条部は、アウタレンズの平坦面に形成される
ので、レーザ溶着時の加圧がアウタレンズの何等の損傷
を伴うことなく、充分大きくかつ安定して付与すること
ができることにより、請求項１の発明の効果に加えて、
成形性の向上を図ることができる。According to the second aspect of the present invention, since the annular rib is provided only on the housing side and the convex line or the concave line that is the object of laser welding is provided at the tip of the annular rib, the welding surface is the outer lens. Since the position is closer to the surface of the laser, laser welding is easier and the accuracy can be increased.
Since the convex line or concave line targeted for laser welding on the outer lens side is formed on the flat surface of the outer lens, the pressure applied during laser welding is sufficiently large and stable without any damage to the outer lens. In addition to the effect of the invention of claim 1,
Moldability can be improved.

【００５０】また、請求項３の発明によれば、レーザ光
は、凸条部と凹条部の湾曲面同士の当接面に照射される
ことになって広い照射範囲を確保することができるの
で、レーザ溶着は、アウタレンズおよびハウジングの直
立から傾倒までの幅広い姿勢に対して充分強度を有する
溶着面を形成することができ、これにより請求項１また
は２の発明の効果に加えて、成形性の一層の向上を図る
ことができる。According to the third aspect of the invention, the laser light is irradiated on the contact surface between the curved surfaces of the convex stripes and the concave stripes, so that a wide irradiation range can be secured. Therefore, the laser welding can form a welding surface having sufficient strength in a wide range of postures from the upright to the tilt of the outer lens and the housing, and in addition to the effect of the invention of claim 1 or 2, the formability is improved. Can be further improved.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の第１実施形態としての車両用灯具の断
面模式図である。FIG. 1 is a schematic cross-sectional view of a vehicle lamp as a first embodiment of the present invention.

【図２】図１の車両用灯具の要部の断面模式図で、
（ａ）は直立姿勢を示し、（ｂ）は傾倒姿勢での加圧状
態を示し、（ｃ）は傾倒姿勢でのレーザ溶着状態を示
す。FIG. 2 is a schematic cross-sectional view of a main part of the vehicle lamp of FIG.
(A) shows an upright posture, (b) shows a pressure state in a tilted posture, and (c) shows a laser welding state in a tilted posture.

【図３】本発明の第２実施形態としての車両用灯具の断
面模式図である。FIG. 3 is a schematic sectional view of a vehicular lamp as a second embodiment of the present invention.

【図４】従来の車両用灯具の課題を説明するための断面
模式図である。FIG. 4 is a schematic cross-sectional view for explaining a problem of a conventional vehicle lamp.

【図５】従来の他の車両用灯具の課題を説明するための
断面模式図である。FIG. 5 is a schematic cross-sectional view for explaining a problem of another conventional vehicle lamp.

【符号の説明】[Explanation of symbols]

１，１０ 車両用灯具 ２ アウタレンズ ３ 環状リブ ４ ハウジング １１ 灯室 １３ レーザ光 ２０ 凸条部 ２１ 凹条部 Ａ，Ｂ 溶着面（レーザ溶着） 1,10 Vehicle lighting 2 outer lens 3 annular rib 4 housing 11 light room 13 Laser light 20 ridge 21 concave section A, B welding surface (laser welding)

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２１Ｙ 101:00 Ｆ２１Ｑ 1/00 Ｋ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) F21Y 101: 00 F21Q 1/00 K

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 アウタレンズが、レーザ光に対して透明
な熱可塑性樹脂材で構成されると共に、レーザ光に対し
て吸収性のある熱可塑性樹脂材で構成されたハウジング
と共働して灯室を画成するように前記ハウジングの開口
部を覆うようにして固定されている車両用灯具であっ
て、 前記アウタレンズおよびハウジングは、そのいずれか一
方の外周部に沿って形成された凸条部を他方の外周部に
沿って形成された凹条部に嵌合させると共に、前記アウ
タレンズ側から照射されるレーザ光による前記凸条部と
前記凹条部との間の全周に亘るレーザ溶着により固定さ
れていることを特徴とする車両用灯具。1. A lamp chamber in which an outer lens is made of a thermoplastic resin material that is transparent to laser light and cooperates with a housing made of a thermoplastic resin material that absorbs laser light. Is a vehicle lamp fixed so as to cover the opening of the housing so as to define the outer lens and the housing, and the outer lens and the housing are provided with a ridge portion formed along an outer peripheral portion of one of the outer lens and the housing. It fits into the concave stripe formed along the other outer peripheral portion and is fixed by laser welding over the entire circumference between the convex stripe and the concave stripe by the laser light emitted from the outer lens side. A vehicle lamp characterized in that 【請求項２】 請求項１に記載の車両用灯具であって、 前記凸条部および凹条部のいずれか一方は、前記アウタ
レンズの平坦面に形成されており、他方は、前記ハウジ
ングの外周縁部に沿って形成される環状リブの先端部に
形成されていることを特徴とする車両用灯具。2. The vehicular lamp according to claim 1, wherein either one of the convex streak and the concave streak is formed on a flat surface of the outer lens, and the other is outside the housing. A vehicular lamp, wherein the vehicular lamp is formed at the tip of an annular rib formed along the peripheral edge. 【請求項３】 請求項１または２に記載の車両用灯具で
あって、 前記凸条部は、湾曲先端部を有する断面に形成されてお
り、前記凹条部は、前記湾曲先端部に相応する湾曲底部
を有して形成されていることを特徴とする車両用灯具。3. The vehicular lamp according to claim 1, wherein the convex streak is formed in a cross section having a curved tip, and the concave streak corresponds to the curved tip. A vehicular lamp having a curved bottom portion that is formed.
JP2001311317A 2001-10-09 2001-10-09 Vehicle lighting Pending JP2003123511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001311317A JP2003123511A (en) 2001-10-09 2001-10-09 Vehicle lighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001311317A JP2003123511A (en) 2001-10-09 2001-10-09 Vehicle lighting

Publications (1)

Publication Number Publication Date
JP2003123511A true JP2003123511A (en) 2003-04-25

Family

ID=19130171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001311317A Pending JP2003123511A (en) 2001-10-09 2001-10-09 Vehicle lighting

Country Status (1)

Country Link
JP (1) JP2003123511A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006114262A (en) * 2004-10-13 2006-04-27 Koito Mfg Co Ltd Vehicular lighting fixture
US8007240B2 (en) 2003-11-27 2011-08-30 Daikin Industries, Ltd. Impeller of centrifugal fan and centrifugal fan disposed with the impeller
JP2013246912A (en) * 2012-05-24 2013-12-09 Stanley Electric Co Ltd Vehicular lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8007240B2 (en) 2003-11-27 2011-08-30 Daikin Industries, Ltd. Impeller of centrifugal fan and centrifugal fan disposed with the impeller
JP2006114262A (en) * 2004-10-13 2006-04-27 Koito Mfg Co Ltd Vehicular lighting fixture
JP2013246912A (en) * 2012-05-24 2013-12-09 Stanley Electric Co Ltd Vehicular lamp

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