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JP2001277364A - Method of welding resin parts by light energy and apparatus for welding resin parts by light energy - Google Patents

Method of welding resin parts by light energy and apparatus for welding resin parts by light energy

Info

Publication number
JP2001277364A
JP2001277364A JP2000092813A JP2000092813A JP2001277364A JP 2001277364 A JP2001277364 A JP 2001277364A JP 2000092813 A JP2000092813 A JP 2000092813A JP 2000092813 A JP2000092813 A JP 2000092813A JP 2001277364 A JP2001277364 A JP 2001277364A
Authority
JP
Japan
Prior art keywords
light energy
welding
resin
resin member
rib
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.)
Granted
Application number
JP2000092813A
Other languages
Japanese (ja)
Other versions
JP3847517B2 (en
Inventor
Akira Ito
昭 伊藤
Eiji Mano
英二 間野
Shigeki Sugawara
茂樹 菅原
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.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co 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 Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Priority to JP2000092813A priority Critical patent/JP3847517B2/en
Publication of JP2001277364A publication Critical patent/JP2001277364A/en
Application granted granted Critical
Publication of JP3847517B2 publication Critical patent/JP3847517B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C65/1635—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
    • B29C65/1641—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 making use of a reflector on the opposite side, e.g. a polished mandrel or a mirror
    • 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
    • B29C65/169—Laser beams making use of light guides being a part of the joined 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
    • B29C66/01—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
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—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
    • B29C66/13—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
    • B29C66/2422—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 circular, oval or elliptical
    • B29C66/24221—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 circular, oval or elliptical being circular
    • 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
    • B29C66/01—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
    • B29C66/50—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
    • 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
    • B29C66/545—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 one hollow-preform being placed inside the other
    • 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
    • B29C66/836—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
    • B29C65/1629—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
    • B29C65/1687—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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
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    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0025—Opaque
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • 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)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Robotics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】 （修正有） 【課題】接合部が曲面の場合であっても意匠上の制約を
受けず光エネルギ−による樹脂製品溶着方法及びその装
置を提供する。 【解決手段】熱可塑性樹脂からなる不透明樹脂部材２と
熱可塑性樹脂からなる透明樹脂部材１とが嵌合するよう
に該透明樹脂部材１にリブを設ける。樹脂部材２の吸収
波長域に適合する一定波長域の光エネルギ−選択手段を
設け、樹脂部材１側から光エネルギ−６を照射するこ
と、また、前記リブの先端を光エネルギ−反射面９とす
ること、また、反射する光学膜で被覆すること、更に
は、樹脂部材２に嵌合位置矯正リブ１０を設け、樹脂部
材２をＬ字型の溶着部５とする樹脂製部品溶着方法。 (57) [Abstract] (with correction) [PROBLEMS] To provide a method and an apparatus for welding a resin product by light energy without being restricted by a design even when a joint portion has a curved surface. A transparent resin member is provided with a rib such that an opaque resin member made of a thermoplastic resin and a transparent resin member made of a thermoplastic resin are fitted to each other. Light energy selecting means of a certain wavelength range adapted to the absorption wavelength range of the resin member 2 is provided to irradiate light energy 6 from the resin member 1 side. And a method of welding the resin member 2 with an L-shaped welding part 5 by providing a fitting position correcting rib 10 on the resin member 2.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明が属する技術分野】本発明は、レーザー光などの
光エネルギーを利用した、樹脂製部品の溶接（溶着）手
段及び装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a means (apparatus) for welding (welding) resin parts utilizing optical energy such as laser light.

【０００２】[0002]

【従来の技術】従来の光エネルギー照射による樹脂製部
品の溶接（溶着）工法における溶接（溶着）に適した部
品形状、樹脂製部品の溶接（溶着）の原理を図３に沿っ
て説明する。2. Description of the Related Art The shape of a part suitable for welding (welding) and the principle of welding (welding) of a resin part in a conventional welding (welding) method of resin parts by light energy irradiation will be described with reference to FIG.

【０００３】接合する一方の部品は、光学的に透明（可
視光に限定することなく特定の波長域の光エネルギー３
６を透過することを含める）な熱可塑性樹脂製部品３１
（以下光学的に透明な部品）であり、もう一方の部品
は、光学的に不透明（特定の波長域の光エネルギー３６
を吸収することを含める）な熱可塑性樹脂部品３２（以
下光学的に不透明な部品）である。溶接（溶着）しよう
とする二つの部品を重ね合わせる。One of the parts to be joined is optically transparent (light energy of a specific wavelength range without being limited to visible light).
6) (including the transmission of 6)
(Hereinafter, an optically transparent part), and the other part is optically opaque (light energy 36 in a specific wavelength range).
Thermoplastic resin component 32 (including an optically opaque component). Two parts to be welded (welded) are overlapped.

【０００４】溶接（溶着）に利用する光エネルギー３６
は、光学的に透明な部分側から接合部３３の溶接（溶
着）部３５に照射する。光エネルギー３６は光学的に透
明な部分を透過して部品の接合部３３に到達し、光学的
に不透明な部品の接合部３３で吸収される。光学的に不
透明な部品の接合部３３は、光エネルギー３６によって
加熱され溶融する。光学的に不透明な部品の溶融熱は、
光学的に透明な部品３１の接合部３３に伝わり、光学的
に透明な部品３１の接合部３３も溶融することで、二つ
の部品は溶着し接合される。Light energy 36 used for welding (welding)
Irradiates the welding (welding) portion 35 of the joining portion 33 from the optically transparent portion side. The light energy 36 passes through the optically transparent portion to reach the joint 33 of the component and is absorbed at the joint 33 of the optically opaque component. The joint 33 of the optically opaque component is heated and melted by the light energy 36. The heat of fusion of optically opaque parts is
The two parts are welded and joined by being transmitted to the joint 33 of the optically transparent part 31 and also melting the joint 33 of the optically transparent part 31.

【０００５】また、光エネルギー３６とは、工業用に広
く使用されている様々な波長のレーザー（金属の切断や
溶接、またはマーキングや光学反応に広く使用されてい
るＹＡＧレーザー、半導体レーザー、固体レーザー及び
気体レーザーなど）や、集光して半田付け装置などの部
材の加熱に利用される光源（白熱電球球，ハロゲンラン
プ，放電ランプなど）より得られるものを指す。[0005] The light energy 36 is a laser of various wavelengths widely used in industry (for example, a YAG laser, a semiconductor laser, and a solid-state laser widely used for cutting or welding metal, or for marking or optical reaction). And a gas laser) or a light source (incandescent bulb, halogen lamp, discharge lamp, etc.) used for heating a member such as a soldering device by condensing.

【０００６】次に溶接（溶着）に適した接合部４３の状
態について図４にて説明する。溶接（溶着）工程は、部
材（部品）の接合部４３ができる限り接している状態で
行われることが望ましい。光エネルギー４６によって加
熱された光学的に不透明な部品４２の接合部４３は膨張
する。このため、ほんのわずかな部品間の隙間４７（一
般的な熱可塑性樹脂部品を平面同士で合わせた時に生じ
るレベルの部品間の隙間）を埋め、本溶接（溶着）は成
立している。Next, the state of the joint 43 suitable for welding (welding) will be described with reference to FIG. The welding (welding) step is desirably performed in a state where the joints 43 of the members (parts) are in contact as much as possible. The joint 43 of the optically opaque part 42 heated by the light energy 46 expands. For this reason, a very small gap 47 between the parts (a gap between the parts at the level generated when a general thermoplastic resin part is joined together on a plane) is filled, and the actual welding (welding) is established.

【０００７】光エネルギー４６を与え続けると、光学的
に不透明な部品４２は気化，分解を始める。これが溶着
部４５を押し上げることで０．１［ｍｍ］程度の隙間４
７を埋める現象が見られる場合がある。As the light energy 46 continues to be applied, the optically opaque component 42 begins to vaporize and decompose. This pushes up the welded portion 45 to form a gap 4 of about 0.1 [mm].
7 may be observed.

【０００８】しかし、それ以上のレベルの隙間４７があ
ると、光学的に不透明な部品４２の接合部４３は、光学
的に不透明な部品４２の接合部４３に達せず、溶融熱は
伝わらない。よって、この場合は溶接（溶着）不良とな
る。However, if there is a gap 47 of a higher level, the joining portion 43 of the optically opaque component 42 does not reach the joining portion 43 of the optically opaque component 42, and the heat of fusion is not transmitted. Therefore, in this case, welding (welding) is defective.

【０００９】図５は接合部５３がリブ先端面の場合を示
す図であり、図５に沿って従来の形状の欠点及びその理
由について説明する。接合部５３がリブ先端面の場合
に、必要とされる接合部５３の条件（精度）は、接続外
形寸法、（特にこの場合は、径と肉厚、）嵌合度（接合
部５３全周に亘って隙間がない）が条件となる。一般に
熱可塑性樹脂の射出成形品においては、成形収縮率を予
め見込んでおくことや、嵌合時に矯正することで、接続
外形寸法の条件はある程度満足できる。しかし、嵌合度
については満足させることが難しい。但し、図５のよう
に接合部５３が平板の溶接（図３のような関係）と同等
に単一平面を構成する場合は比較的満足させ易く、通常
は溶接（溶着）は行い易い。FIG. 5 is a diagram showing a case where the joining portion 53 is a rib tip surface, and the disadvantages of the conventional shape and the reason thereof will be described with reference to FIG. When the joining portion 53 is the rib tip surface, the required condition (accuracy) of the joining portion 53 is the connection outer dimension, (in this case, particularly, the diameter and thickness), the fitting degree (over the entire circumference of the joining portion 53). (There is no gap across). In general, in the case of an injection-molded product of a thermoplastic resin, the condition of the external dimensions of the connection can be satisfied to some extent by considering the molding shrinkage in advance and correcting the ratio at the time of fitting. However, it is difficult to satisfy the degree of fitting. However, as shown in FIG. 5, when the joining portion 53 forms a single plane equivalent to flat plate welding (the relationship shown in FIG. 3), it is relatively easy to satisfy, and usually welding (welding) is easy.

【００１０】一方、図６では、一般的な熱可塑性樹脂の
射出成形品を示す図であり、金型から製品を取り出すた
めの突き出し部位を設けており、通常はその跡が製品に
残る。図５のような場合は、型抜き性や意匠性を考慮し
て製品のリブ部先端（接合部５３）に突き出し部位を設
けることが多いため、接合部６３に突き出し跡６８が残
る可能性が高い。突き出し跡６８は製品にへこみ形状で
残ることが多いため、この部分は接合部６３の隙間６７
となり易い。よって前述した図３の状態に反するため、
このような場合は本溶接（溶着）工程には不向きであ
る。On the other hand, FIG. 6 is a view showing a general injection molded product of a thermoplastic resin, in which a protruding portion for taking out the product from a mold is provided, and usually the mark is left on the product. In the case as shown in FIG. 5, a projecting portion is often provided at the tip of the rib portion (joining portion 53) of the product in consideration of die-cutting property and designability. high. Since the protrusion mark 68 often remains in the product in the shape of a dent, this portion is
Easily. Therefore, contrary to the state of FIG. 3 described above,
Such a case is not suitable for the main welding (welding) step.

【００１１】また、図７では、接合部７３がリブ先端面
の場合で単一平面でないような曲面を持つ場合を自動車
用信号灯具を例にして示しその要部断面をＳＥＣＴ Ａ
−Ａ、ＳＥＣＴ Ｂ−Ｂ、ＳＥＣＴ Ｃ−Ｃとした図で
ある。接合部７３がリブ先端面の場合は、前述同様の部
品関係であり、尚接合面が単一平面でない場合は、前述
したように嵌合度を満足させることが難しくなることは
容易に想像できる。図７の場合の接合部７３は曲面（特
にＳＥＣＴ Ａ−Ａ等の場合）となるため、隙間が開き
やすく一様な部品間の接合を得にくい。従って、前述し
たような状態に反するため、このような場合は本溶接
（溶着）工程には不向きであった。FIG. 7 shows an example of a signal light for an automobile, in which the joint 73 has a curved surface that is not a single plane when it is a rib end surface, and a cross section of the main part is SECTA.
-A, SECT BB, and SECT CC. When the joining portion 73 is a rib tip surface, the relationship of parts is the same as described above, and when the joining surface is not a single plane, it can be easily imagined that it is difficult to satisfy the fitting degree as described above. In the case of FIG. 7, since the joining portion 73 has a curved surface (especially in the case of SECT AA or the like), a gap is easily opened and it is difficult to obtain uniform joining between components. Therefore, it is not suitable for the main welding (welding) step in such a case because it is contrary to the above-described state.

【００１２】更に図８は、接合部８３がリブ壁面である
場合を斜視図と断面図で示す図である。壁面を溶接（溶
着）する接合部８３の位置関係の場合、前述の接続外形
寸法、嵌合度を満足し易く、いわゆる「はめあい」の関
係が作り易いため、リブ先端で接合させた場合に比べて
接合部８３の隙間が矯正し易い。しかしながら、この場
合の光エネルギー８６は側面からの照射となり、光エネ
ルギー８６は光学的に透明な部品８１の外側（はめあい
を逆にすれば内側）より照射する必要があるため、図７
の断面のような製品には適用できなかった。従ってこの
場合は意匠上の制約が欠点となっていた。FIG. 8 is a perspective view and a sectional view showing a case where the joining portion 83 is a rib wall surface. In the case of the positional relationship of the joining portion 83 for welding (welding) the wall surface, the above-described connection external dimensions and the degree of fitting are easily satisfied, and a so-called “fitting” relationship is easily created. The gap between the joints 83 can be easily corrected. However, in this case, the light energy 86 is irradiated from the side, and the light energy 86 needs to be irradiated from the outside of the optically transparent component 81 (the inside if the fit is reversed).
It could not be applied to products like cross section. Therefore, in this case, the design limitation was a drawback.

【００１３】[0013]

【発明が解決しようとする課題】本発明は、上記したよ
うに、接合部がリブ先端面の場合は、前述同様の部品関
係で、尚接合面が単一平面でない場合は、前述の嵌合度
を満足させることが難しく、自動車用信号灯等の接合部
は曲面となるため、隙間が開きやすく一様な部品間の接
合を得にくく、そのため、接合部をリブ壁面とすると、
光エネルギーは側面からの照射となり、光エネルギーは
光学的に透明な部品の外側（はめあいを逆にすれば内
側）より照射する必要があるため、接合部が曲面となる
製品では意匠上の制約があり、それらを解決することを
課題とするものである。As described above, according to the present invention, when the joining portion is a rib tip surface, the same parts as described above are used. It is difficult to satisfy the above, the joints such as signal lights for automobiles are curved, it is easy to open the gap, it is difficult to obtain a uniform joint between parts, therefore, if the joint is a rib wall,
Light energy must be irradiated from the side, and light energy must be irradiated from the outside of the optically transparent part (inside if the fitting is reversed). The problem is to solve them.

【００１４】[0014]

【課題を解決する手段】光エネルギ−による樹脂製部品
溶着方法において、熱可塑性樹脂からなる不透明樹脂部
材と熱可塑性樹脂からなる透明樹脂部材とが嵌合するよ
うに該透明樹脂部材にリブを設け、該光エネルギ−を該
不透明樹脂部材の吸収波長域に適合する一定波長域の光
エネルギ−選択手段を設け、該透明樹脂部材側から光エ
ネルギ−を照射すること、また、前記リブの末端を光エ
ネルギ−反射面とすること、また、前記光エネルギ−反
射面を、選択された光エネルギ−を反射する光学膜で被
覆すること、更には、前記不透明樹脂部材に嵌合位置矯
正リブを設け、光エネルギ−による樹脂製部品溶着方法
を提供することで課題を解決している。In a resin component welding method using light energy, a rib is provided on a transparent resin member such that an opaque resin member made of a thermoplastic resin and a transparent resin member made of a thermoplastic resin are fitted. Providing a light energy selecting means for applying the light energy in a predetermined wavelength range adapted to the absorption wavelength range of the opaque resin member, irradiating the light energy from the transparent resin member side; A light energy-reflecting surface, the light energy-reflecting surface is coated with an optical film that reflects selected light energy, and a fitting position correcting rib is provided on the opaque resin member. The problem has been solved by providing a method for welding resin parts by light energy.

【００１５】光エネルギ−発生装置と、熱可塑性樹脂か
らなる不透明樹脂部材の吸収波長域に適合する一定波長
の光エネルギ−選択手段と、該不透明樹脂部材と熱可塑
性樹脂部材からなる透明樹脂部材とが嵌合する該不透明
樹脂部材の側面及び底面を接合部として該透明部材側か
ら光エネルギ−照射する手段を持つ光エネルギ−による
樹脂製部品溶着装置を提供することで課題を解決してい
る。A light energy generator, light energy selecting means having a predetermined wavelength suitable for an absorption wavelength range of an opaque resin member made of a thermoplastic resin, and a transparent resin member made of the opaque resin member and a thermoplastic resin member. The problem has been solved by providing a resin component welding apparatus using light energy having means for irradiating light energy from the transparent member side with the side and bottom surfaces of the opaque resin member fitted with as joints.

【００１６】[0016]

【発明の実施形態】本発明における実施形態を図１にて
断面図及びそのＡ部詳細を示し説明する。図１の１は、
熱可塑性樹脂からなる透明樹脂部材（以下光学的に透明
な部品）であり、２は、熱可塑性樹脂からなる不透明樹
脂部材（以下光学的に不透明な部品）である。尚３は、
そのリブ壁面（側面）における接合部、３'は、そのリ
ブ底面における接合部、４は光エネルギ−発生装置、６
は、光エネルギ−を示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. 1 in FIG.
A transparent resin member (hereinafter, optically transparent part) made of a thermoplastic resin, and 2 is an opaque resin member (hereinafter, optically opaque part) made of a thermoplastic resin. 3
3 ' is a joint at the rib bottom surface, 3 ' is a joint at the rib bottom surface, 4 is a light energy generator, 6
Indicates light energy.

【００１７】図１においての光軸反射仕様について説明
する。光軸反射面の設定は、光学的に透明な部品１のリ
ブ先端に光エネルギー６の反射面９を設ける。この反射
面は、光学的に透明な部品１のリブ先端に傾斜面とし
て、光エネルギー６が反射するようにしている。この反
射面９は、光学的に不透明な部品２の吸収波長域に適合
する光エネルギ−６を選択して、その光エネルギ−６を
反射すればよく、光学的反射物を薄膜として被覆しり、
ただの傾斜面であっても選択された光エネルギ−６が反
射するようであればよい。The optical axis reflection specification in FIG. 1 will be described. To set the optical axis reflecting surface, a reflecting surface 9 for optical energy 6 is provided at the tip of the rib of the optically transparent component 1. The reflecting surface is formed as an inclined surface at the tip of the rib of the optically transparent component 1 so that the light energy 6 is reflected. The reflecting surface 9 may be formed by selecting light energy 6 that matches the absorption wavelength range of the optically opaque component 2 and reflecting the light energy 6, and coating the optical reflector as a thin film.
It is sufficient if the selected light energy-6 is reflected even if it is a simple inclined surface.

【００１８】嵌合位置矯正リブ１０の設定について説明
する。リブ壁面における接合部３のはめあいが確実に行
われることを目的として、嵌合位置矯正リブ１０を光学
的に不透明な部品２の側に設ける。図１の要部断面に示
すようにリブ底面における接合部３’については、リブ
底面にも幾ばくかの光エネルギー６が抜けるようにした
底面の接合部３’を設けている。The setting of the fitting position correcting rib 10 will be described. In order to ensure that the joint portion 3 is fitted to the rib wall surface, the fitting position correcting rib 10 is provided on the optically opaque part 2 side. As shown in the cross section of the main part of FIG. 1, the bonding portion 3 ' on the bottom surface of the rib is also provided on the bottom surface of the rib with a bonding portion 3 ' on the bottom surface to allow some light energy 6 to escape.

【００１９】光軸反射面の設定では、前述に記すよう
に、溶接（溶着）のリブ壁面の接合部３をリブ壁面とし
た方が、溶接（溶着）性は有利である。従って、接合面
は壁面とする接合部３となる。その上で、欠点である
『意匠上の制約』を解決するために、光エネルギー６を
光学的に透明な部品１の上側から照射する。しかし、通
常の形状での光エネルギー６は壁面反射による導光１１
などにより、リブを通過して下側に抜けてしまうため、
リブ先端に光エネルギー６の反射面９を設け、光軸を曲
げることでハウジング壁面の接合部３に光エネルギー６
を照射し、リブ壁面での溶接（溶着）５を可能に出来
る。In the setting of the optical axis reflecting surface, as described above, the welding (welding) property is more advantageous when the joining portion 3 of the rib surface of welding (welding) is formed as a rib wall surface. Therefore, the joining surface becomes the joining portion 3 as a wall surface. Then, in order to solve the “design restriction”, which is a drawback, the light energy 6 is irradiated from above the optically transparent component 1. However, the light energy 6 in the normal shape is not reflected by the light guide 11 due to the wall reflection.
Because it passes through the ribs and falls down,
A reflection surface 9 for the light energy 6 is provided at the tip of the rib, and the optical axis is bent so that the light energy 6
And welding (welding) 5 on the rib wall surface can be performed.

【００２０】嵌合位置矯正リブ１０は、リブ壁面におけ
る接合部３のはめあいが確実に行われることを目的とし
て、嵌合位置矯正リブ１０を光学的に不透明な部品２の
側に設け、１、２の部品同士の嵌合を補助するために、
通常は部品のあわせ方向に外力を加える。嵌合位置矯正
リブ１０は、光学的に透明な部品１のリブ壁面の接合部
３を光学的に不透明な部品２の同一部分に押さえつける
方向に変えるため、リブ壁面の接合部３の「はめあい」
を助けることとなる。The fitting position correcting rib 10 is provided on the side of the optically opaque component 2 for the purpose of ensuring the fitting of the joint portion 3 on the rib wall surface. In order to assist the fitting of the two parts,
Normally, an external force is applied in the direction in which the parts are aligned. The fitting position correcting rib 10 changes the direction in which the joint 3 on the rib wall surface of the optically transparent component 1 is pressed against the same portion of the optically opaque component 2, so that the “fit” of the joint 3 on the rib wall surface is performed.
Will help.

【００２１】反射面９を設けたことで、光学的に透明な
部品１から照射される光エネルギー６のほとんどは、光
学的に不透明な部品２のリブにおける壁面に設けられた
接合部３に到達する。しかし、リブ底面にも幾ばくかの
光エネルギー６が抜けるようになっており、リブの底面
における接合部３'を設ける。こうすることで接合部の
断面はＬ字構造型となるため、従来の接合仕様（断面が
−字またはＩ字、いずれにしても直線）よりも溶接（溶
着）部位の強度が大きくなることが期待できる。By providing the reflecting surface 9, most of the light energy 6 emitted from the optically transparent component 1 reaches the joint 3 provided on the wall surface of the rib of the optically opaque component 2. I do. However, some light energy 6 also escapes from the bottom of the rib, and a joint 3 ' is provided at the bottom of the rib. By doing so, the cross-section of the joint becomes an L-shaped structure, so that the strength of the welded (welded) portion may be larger than the conventional joint specification (the cross-section is-or I-shaped, in any case, a straight line). Can be expected.

【００２２】以上の結果、意匠上の制約を減らしなが
ら、安定して高品質な溶接（溶着）状態を保ち、尚且つ
従来品に比べより溶接（溶着）強度を上げられる部品形
状が提供できる。また、ここでは反射面を透明樹脂部材
のリブ先端として断面図に示される傾斜面に設け、底面
は反射面を持たないものとしている。更に、反射面を作
製するにあたり、一定波長域の光エネルギ−が反射でき
ればどのような手段を用いてもよい。例えば、反射面作
製方法として光学的反射物を被覆してもよくそれが、光
学的反射膜であれば、塗布、蒸着、メッキ等どのような
手段で被覆しても良い。As a result of the above, it is possible to provide a part shape which can maintain a high quality welding (welding) state stably while reducing design restrictions and can further increase the welding (welding) strength as compared with conventional products. Here, the reflecting surface is provided on the inclined surface shown in the sectional view as the rib tip of the transparent resin member, and the bottom surface has no reflecting surface. Further, in manufacturing the reflection surface, any means may be used as long as light energy in a certain wavelength range can be reflected. For example, an optically reflective material may be coated as a method for producing a reflective surface, and if it is an optically reflective film, it may be coated by any means such as coating, vapor deposition, and plating.

【００２３】次に、光エネルギ−による樹脂製品溶着装
置について、図２にて説明する。光エネルギ−発生装置
２４を備え、それは、工業用に広く使用されている様々
な波長のレーザー（金属の切断や溶接、またはマーキン
グや光学反応に広く使用されているＹＡＧレーザー、半
導体レーザー、固体レーザー、及び気体レーザーなど）
や、集光して半田付け装置などの部材の加熱に利用され
る光源（白熱電球，ハロゲンランプ，放電ランプなど）
より形成されている。次に光エネルギ−発生装置２４
と、熱可塑性樹脂からなる不透明樹脂部材２２（以下不
透明な部品）の吸収波長域に適合する一定波長の光エネ
ルギ−２６をそのつど選択できる光エネルギ−選択装置
を備えており、不透明な部品２２の吸収端を測定し、光
エネルギ−選択装置によって不透明な部品２２に適合す
る一定波長域の光エネルギ−２６を選択する。この時、
必ずしも不透明な部品２２の吸収端を測定する必要はな
い。何故なら、複数の不透明な部品２２が予め定められ
たものであれば、その不透明な部品２２が選択されるた
びに、その不透明な部品２２の吸収波長域に適合する一
定波長の光エネルギ−が照射される、光エネルギ−２６
を光エネルギ−選択装置にプログラムしておけばよいか
らである。Next, a resin product welding apparatus using light energy will be described with reference to FIG. It is provided with a light energy generator 24, which is a laser of various wavelengths widely used for industrial purposes (a YAG laser, a semiconductor laser, a solid-state laser, which is widely used for cutting or welding metal, or for marking or optical reaction). And gas lasers)
And light sources that condense and heat parts such as soldering equipment (incandescent lamps, halogen lamps, discharge lamps, etc.)
Is formed. Next, the light energy generator 24
And a light energy selecting device capable of selecting light energy 26 of a certain wavelength suitable for the absorption wavelength range of an opaque resin member 22 (hereinafter referred to as an opaque part) made of a thermoplastic resin. Is measured, and a light energy selecting device is used to select light energy 26 in a certain wavelength range that is compatible with the opaque component 22. At this time,
It is not necessary to measure the absorption edge of the opaque part 22. This is because, if the plurality of opaque components 22 are predetermined, each time the opaque component 22 is selected, light energy of a certain wavelength matching the absorption wavelength range of the opaque component 22 is generated. Irradiated light energy -26
Is programmed in the light energy selecting device.

【００２４】次に用意された不透明な部品２２のハウジ
ングの壁と透明な部品２１のリブとが嵌合する部分を接
合するため、透明な部品２１の上側から光エネルギ−選
択装置によって選択された光エネルギ−２６を照射す
る。リブ先端の接合部２３、２３’に光エネルギ−２６
を集めて溶融するＬ字型の溶着部を形成することで樹脂
製部品溶着装置が形成されている。Next, a light energy selecting device was selected from the upper side of the transparent component 21 to join a portion where the housing wall of the prepared opaque component 22 and the rib of the transparent component 21 fit together. Irradiate light energy -26. Light energy 26 is applied to the joints 23 and 23 ' at the rib ends.
By forming an L-shaped welded portion that collects and fuses, a resin component welding apparatus is formed.

【００２５】従って、このような光エネルギ−による樹
脂製部品溶着装置を開発することで意匠上の制約を減ら
しながら、安定して高品質な溶接（溶着）状態を保ち、
尚且つ従来品に比べより溶接（溶着）強度を上げられる
部品形状が提供できる。また、前記の傾斜面は光エネル
ギ−が反射できればよく必ずしも傾斜面に被覆しなくと
もよい。また傾斜面に被覆する反射膜は、特に限定され
るものではない。Therefore, by developing such a resin component welding apparatus using light energy, it is possible to maintain a high quality welding (welding) state stably while reducing design constraints.
In addition, it is possible to provide a component shape that can increase the welding (welding) strength more than the conventional product. In addition, the above-mentioned inclined surface only needs to be able to reflect light energy, and does not necessarily have to cover the inclined surface. The reflective film covering the inclined surface is not particularly limited.

【００２６】更にここでは、一方を透明部材とし他方を
不透明部材として説明してきたが、透明部材同士を溶接
する場合は、光エネルギ−を照射しない側の部材の背面
側に光エネルギ−の吸収波長域を有する物を置いて溶接
している。この場合においても透明部材は、熱可塑性樹
脂からなり、互いに嵌合するように一方の透明部材に前
述同様にリブを設けるなどしてもよい。このように、基
本的な構造は前述同様なので省略している。Furthermore, although one transparent member and the other opaque member have been described above, when the transparent members are welded to each other, the light energy absorption wavelength is applied to the back side of the member not irradiated with light energy. Welding with an object having an area. Also in this case, the transparent member may be made of a thermoplastic resin, and a rib may be provided on one of the transparent members as described above so as to fit each other. As described above, the basic structure is the same as that described above, and thus is omitted.

【００２７】[0027]

【発明の効果】光エネルギ−による樹脂製部品溶着方法
及び光エネルギ−による樹脂製部品溶着装置を提供する
ことで自動車用信号灯具のような接合部が曲面であって
も、隙間が設けられることなく意匠上の制約を減らしな
がら、安定して高品質な溶接（溶着）状態を保ち、尚且
つ従来品に比べより溶接（溶着）強度を上げられる部品
形状が提供できる。According to the present invention, a resin part welding method using light energy and a resin part welding apparatus using light energy are provided, so that a gap is provided even when a joint such as a signal lamp for automobiles has a curved surface. Thus, it is possible to provide a component shape that can stably maintain a high-quality welding (welding) state while reducing design constraints and further increase the welding (welding) strength compared to conventional products.

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

【図１】本発明の光エネルギ−による樹脂製品溶着方法
を示す断面図及びその要部としてＡ部詳細を示す図であ
る。FIG. 1 is a cross-sectional view showing a method for welding a resin product by light energy according to the present invention and a diagram showing details of a portion A as a main part thereof.

【図２】本発明の光エネルギ−による樹脂製品溶着装置
を簡略化して示した図である。FIG. 2 is a simplified view of a resin product welding apparatus using light energy according to the present invention.

【図３】従来の光エネルギー照射による樹脂製部品の溶
接（溶着）工法における溶接（溶着）に適した部品形
状、樹脂製部品の溶接（溶着）の原理を示す図である。FIG. 3 is a view showing a component shape suitable for welding (welding) in a conventional welding (welding) method of resin parts by light energy irradiation, and the principle of welding (welding) of resin parts.

【図４】従来の樹脂製品に適した接合部の状態を示す図
である。FIG. 4 is a view showing a state of a joint portion suitable for a conventional resin product.

【図５】従来の樹脂製品の接合部がリブ先端で単一平面
の場合における斜視図及び断面図を示す図である。FIG. 5 is a perspective view and a cross-sectional view of a conventional resin product in which a joint portion is a single plane at a tip end of a rib.

【図６】従来の樹脂製品の一般的な射出成形品を示す図
である。FIG. 6 is a view showing a general injection-molded product of a conventional resin product.

【図７】従来の樹脂製品の接合部がリブ先端面の場合で
単一平面でないような曲面を持つ場合を自動車用信号灯
具を例にして示した図である。FIG. 7 is a diagram illustrating a case where a conventional resin product has a curved surface that is not a single plane when a joint portion of a resin product is a rib tip surface, as an example of an automobile signal lamp.

【図８】従来の樹脂製品の、接合部がリブ壁面である場
合を斜視図と断面図で示す図である。FIG. 8 is a perspective view and a cross-sectional view of a conventional resin product when a joint is a rib wall surface.

【符号の説明】[Explanation of symbols]

１．２１．３１．４１．５１．６１．７１．８１…熱可
塑性樹脂からなる透明樹脂部材（光学的に透明な部品） ２．２２．３２．４２．５２．６２．７２．８２…熱可
塑性樹脂からなる不透明樹脂部材（光学的に不透明な部
品） ３．２３．…リブ壁面（側面）における接合部（ハウジ
ング壁面（側面）における接合部） ３’．２３’…リブ底面における接合部（ハウジング底
面における接合部） ４．２４．３４．５４．８４…光エネルギ−発生装置 ５．３５．４５…溶接（溶着）部 ６．２６．３６．４６．５６．８６…光エネルギ− ９．２９…光エネルギ−反射面 １０．２０…嵌合位置矯正リブ １１…壁面反射による導光 １２…反射面による反射 ３３．４３．５３．６３．７３．８３…接合部 ４７．６７…隙間 ６８…突き出し跡1.21.31.41.51.61.71.81 ... A transparent resin member (optically transparent part) made of a thermoplastic resin 2.22.32.42.52.62.72.82 ... Thermoplastic Opaque resin member made of resin (optically opaque part) 3.23. … Joint on rib wall (side) (joint on housing wall (side)) 3 ' . 23 ' ... joint at the bottom of the rib (joint at the bottom of the housing) 4.24.34.54.84 ... light energy generator 5.35.45 ... welding (welding) 6.26.36.36.46.56 .86 ... light energy 9.29 ... light energy-reflection surface 10.20 ... fitting position correcting rib 11 ... light guide by wall surface reflection 12 ... reflection by reflection surface 33.43.53.53.63.73.83 ... joining Part 47.67 ... gap 68 ... protrusion mark

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】光エネルギ−による樹脂製部品溶着方法に
おいて、熱可塑性樹脂からなる不透明樹脂部材と熱可塑
性樹脂からなる透明樹脂部材とが嵌合するように該透明
樹脂部材にリブを設け、該光エネルギ−を該不透明樹脂
部材の吸収波長域に適合する一定波長域の光エネルギ−
選択手段を設け、該透明樹脂部材側から光エネルギ−を
照射することを特徴とする光エネルギ−による樹脂製部
品溶着方法。In a method for welding a resin part by light energy, a rib is provided on the transparent resin member so that an opaque resin member made of a thermoplastic resin and a transparent resin member made of a thermoplastic resin are fitted to each other. The light energy in a certain wavelength range adapted to the absorption wavelength range of the opaque resin member.
A method for welding a resin part by light energy, comprising providing selection means and irradiating light energy from the transparent resin member side. 【請求項２】前記リブの末端を光エネルギ−反射面とす
ることを特徴をする請求項１記載の光エネルギ−による
樹脂製部品溶着方法。2. The method according to claim 1, wherein the end of the rib is a light energy reflecting surface. 【請求項３】前記光エネルギ−反射面は、選択された光
エネルギ−を反射する光学的反射物で被覆されているこ
とを特徴とする請求項２記載の光エネルギ−による樹脂
製部品溶着方法。3. A method for welding resin parts by light energy according to claim 2, wherein said light energy reflecting surface is coated with an optical reflector reflecting the selected light energy. . 【請求項４】前記不透明樹脂部材に嵌合位置矯正リブを
設けることを特徴とする請求項１〜３記載の光エネルギ
−による樹脂製部品溶着方法。4. A method for welding a resin part by light energy according to claim 1, wherein said opaque resin member is provided with a fitting position correcting rib. 【請求項５】光エネルギ−による樹脂製部品溶着方法に
おいて、熱可塑性樹脂からなる透明樹脂部材同士の接合
は、光エネルギ−を照射しない側に該光エネルギ−の吸
収波長域を有する物を置いて溶接することを特徴とする
光エネルギ−の溶着方法。5. In a method of welding a resin part by light energy, the transparent resin members made of thermoplastic resin are joined to each other by placing an object having an absorption wavelength range of the light energy on a side not irradiated with the light energy. And welding the light energy. 【請求項６】光エネルギ−発生装置と、熱可塑性樹脂か
らなる不透明樹脂部材の吸収波長域に適合する一定波長
の光エネルギ−選択手段と、該不透明樹脂部材と熱可塑
性樹脂部材からなる透明樹脂部材とが嵌合する該不透明
樹脂部材の側面及び底面を接合部として該透明部材側か
ら光エネルギ−照射する手段を持つことを特徴とする光
エネルギ−による樹脂製部品溶着装置。6. A light energy generating device, light energy selecting means having a predetermined wavelength suitable for an absorption wavelength range of an opaque resin member made of a thermoplastic resin, and a transparent resin made of the opaque resin member and a thermoplastic resin member. A resin component welding apparatus using light energy, comprising means for irradiating light energy from the transparent member side with the side and bottom surfaces of the opaque resin member fitted with the member as joints.
JP2000092813A 2000-03-30 2000-03-30 Method of welding plastic parts by light energy Expired - Fee Related JP3847517B2 (en)

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JP2001277364A true JP2001277364A (en) 2001-10-09
JP3847517B2 JP3847517B2 (en) 2006-11-22

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JP2007223063A (en) * 2006-02-21 2007-09-06 Tokai Rika Co Ltd Case, portable machine, and laser welding method for resin molding
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Cited By (27)

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Publication number Priority date Publication date Assignee Title
EP1329304A3 (en) * 2002-01-17 2006-08-23 Lanxess Deutschland GmbH Method of joining plastic parts by combining pressing and laser welding
CN100354113C (en) * 2003-06-11 2007-12-12 爱信精机株式会社 Process for laser welding resinous members, apparatus for the same and laser-welded resinous product
US7510620B2 (en) 2003-06-11 2009-03-31 Toyota Jidosha Kabushiki Kaisha Process for laser welding resinous members, apparatus for the same and laser-welded resinous product
US8038828B2 (en) 2003-06-11 2011-10-18 Toyota Jidosha Kabushiki Kaisha Process for laser welding resinous members, apparatus for the same and laser-welded resinous product
EP1524096A3 (en) * 2003-10-14 2008-03-19 Denso Corporation Resin mold and method for manufacturing the same
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