JP2003276087A - Bonding method for resin material - Google Patents

Bonding method for resin material

Info

Publication number
JP2003276087A
JP2003276087A JP2002081542A JP2002081542A JP2003276087A JP 2003276087 A JP2003276087 A JP 2003276087A JP 2002081542 A JP2002081542 A JP 2002081542A JP 2002081542 A JP2002081542 A JP 2002081542A JP 2003276087 A JP2003276087 A JP 2003276087A
Authority
JP
Japan
Prior art keywords
resin material
laser
engaging
engagement
laser beam
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
JP2002081542A
Other languages
Japanese (ja)
Inventor
Kyoji Koda
京司 国府田
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.)
Fine Device Kk
Fine Device Co Ltd
Original Assignee
Fine Device Kk
Fine Device 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 Fine Device Kk, Fine Device Co Ltd filed Critical Fine Device Kk
Priority to JP2002081542A priority Critical patent/JP2003276087A/en
Publication of JP2003276087A publication Critical patent/JP2003276087A/en
Pending 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • 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
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B29C65/168—Laser beams making use of an absorber or impact modifier placed at the interface
    • 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
    • B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the 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
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • 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
    • B29C66/80—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
    • 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
    • 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
    • B29C66/70—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
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/08—Glass
    • 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
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bonding method for airtightly bonding mutual resin materials without using an adhesive agent and a mold, which method facilitates recycling, reduces weight of the whole, and realizes reduction of a cost, simplification of a process, shortening of a required time and a high positional precision. <P>SOLUTION: The bonding method comprises a process for fitting an engaging protrusion part 18 of a second resin material 16 equipped with laser transmissibility in an engaging recess part 14 of a first resin material 12 equipped with laser absorbing characteristics; a process for making a presser fixture 20 equipped with the laser transmissibility abut against a surface of the second resin material 16 by a specific pressure; a process for heating an inside of the engaging recess 14 of the first resin material 12 by a transmitted laser beam inside the presser fixture 20 and the engaging part 18 by irradiating a surface of the presser fixture 20 with laser beams L; and a process for fusion welding the fused engaging part 14 to the engaging protrusion part 18, are provided. <P>COPYRIGHT: (C)2003,JPO

Description

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

【００１】[001]

【発明の属する技術分野】この発明は樹脂材の接合方法
に係り、特に、レーザビームの照射によって一方の樹脂
材と他方の樹脂材間を融着させる接合方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin material joining method, and more particularly, to a joining method in which one resin material and the other resin material are fused by irradiation of a laser beam.

【００２】[002]

【従来の技術】例えば自動車のテールランプのように、
樹脂材間の接合構造に高い気密性が要求される場合、こ
れまでは接着剤による接合方法や熱圧着による接合方法
が一般に用いられてきた。2. Description of the Related Art For example, as in a tail lamp of an automobile,
When high airtightness is required for the joint structure between resin materials, a joining method using an adhesive or a joining method using thermocompression has been generally used so far.

【００３】接着剤による接合方法の場合、図５に示すよ
うに、第１の樹脂材30の表面に係合凹部（溝部）32を比
較的深く形成しておき、そこに熱硬化性樹脂等よりなる
接着剤34を充填させた後に第２の樹脂材36の係合凸部
（縁部）38を嵌合させ、図示しないヒータやランプで一
定時間加熱することで両樹脂材30，36同士を接合する。
この結果、第１の樹脂材30と第２の樹脂材36との間に、
気密空間Ｘが形成される。In the case of the joining method using an adhesive, as shown in FIG. 5, an engaging recess (groove) 32 is formed relatively deep in the surface of the first resin material 30, and a thermosetting resin or the like is formed therein. After being filled with the adhesive 34 made of, the engaging protrusions (edges) 38 of the second resin material 36 are fitted and heated by a heater or lamp (not shown) for a certain period of time To join.
As a result, between the first resin material 30 and the second resin material 36,
An airtight space X is formed.

【００４】これに対し、熱圧着による接合方法にあって
は、図６に示すように第１の樹脂材40の表面に加熱した
金型42を圧接してこれを部分的に溶融させ、つぎに金型
42を取り外した後、図７に示すように第２の樹脂材44の
凸部46を第１の樹脂材40の溶融部48に圧着させることで
両樹脂材40，44同士を接合する。この場合も、第１の樹
脂材40と第２の樹脂材44との間に、気密空間Ｘが形成さ
れる。On the other hand, in the joining method by thermocompression bonding, as shown in FIG. 6, the heated mold 42 is pressed against the surface of the first resin material 40 to partially melt it, and To mold
After removing 42, as shown in FIG. 7, the convex portion 46 of the second resin material 44 is pressure-bonded to the melting portion 48 of the first resin material 40 to bond the two resin materials 40, 44 to each other. Also in this case, the airtight space X is formed between the first resin material 40 and the second resin material 44.

【００５】[0095]

【発明が解決しようとする課題】しかしながら、上記接
着剤による接合方法の場合、以下の問題点があった。 (1) 接着剤34が硬化するまでに時間を要する。 (2) 接着剤34の使用は第１の樹脂材30及び第２の樹脂材
36に対する「異物」の混入となり、リサイクルの妨げと
なる。 (3) 接着剤34の分だけ重量が嵩むこととなり、軽量化の
要請に反する。However, the joining method using the above-mentioned adhesive has the following problems. (1) It takes time for the adhesive 34 to cure. (2) The adhesive 34 is used for the first resin material 30 and the second resin material.
"Foreign substances" are mixed in with 36, which hinders recycling. (3) The weight is increased by the amount of the adhesive 34, which violates the demand for weight reduction.

【００６】これに対し、熱圧着による接合方法にあって
は、異物を用いることなく樹脂材同士を接合させること
が可能であり、したがってリサイクルの妨げとならず、
重量の増加も生じない点で優れている。しかしながら、
熱圧着の場合、上記のように加熱用の金型42を用意する
必要があり、そのためのコストを要することはもちろん
のこと、仕様が変更される度に金型42を作り替える変え
なければならず、設計変更に対する柔軟性に欠けてい
た。特に、第１の樹脂材40及び第２の樹脂材44の接合面
が複雑な立体構造を備えている場合には、それに対応し
た複雑な形状の金型42を用意する必要があり、その分金
型の製造コストが嵩むこととなる。また、第１の樹脂材
40の表面を加熱して溶融させた後に金型42を取り外し、
第２の樹脂材44の凸部46を第１の樹脂材40の溶融部48に
正確に接触させる必要があるため、その分工程が複雑化
するのみならず、過溶融による位置決め精度の低下とい
う問題があった。もちろん、全体の所要時間も比較的長
くならざるを得なかった。On the other hand, in the joining method by thermocompression bonding, it is possible to join the resin materials together without using foreign matter, and therefore, it does not hinder recycling.
It is excellent in that it does not cause an increase in weight. However,
In the case of thermocompression bonding, it is necessary to prepare the mold 42 for heating as described above, and of course not only the cost for that is required, but also the mold 42 must be remade every time the specifications are changed. , Lacked flexibility in design changes. In particular, when the joining surface of the first resin material 40 and the second resin material 44 has a complicated three-dimensional structure, it is necessary to prepare a mold 42 having a complicated shape corresponding to that, and This will increase the manufacturing cost of the mold. Also, the first resin material
Remove the mold 42 after heating and melting the surface of 40,
Since it is necessary to bring the convex portion 46 of the second resin material 44 into accurate contact with the melting portion 48 of the first resin material 40, not only the process becomes complicated, but also the positioning accuracy decreases due to overmelting. There was a problem. Of course, the total time required was relatively long.

【００７】この発明は、従来の接合方法が抱えていた上
記問題点を解決するために案出されたものであり、接着
剤や金型を用いることなく樹脂材同士を気密に接合で
き、したがってリサイクルの容易化、全体の軽量化、コ
ストの削減、工程の簡素化、所要時間の短縮化、並びに
高い位置精度の確保が可能な接合方法の実現を目的とし
ている。The present invention was devised in order to solve the above-mentioned problems that the conventional joining methods had, and it was possible to hermetically join resin materials together without using an adhesive or a mold, and The objective is to realize a joining method that facilitates recycling, reduces the overall weight, reduces costs, simplifies the process, shortens the required time, and ensures high positional accuracy.

【００８】[0085]

【課題を解決するための手段】上記の目的を達成するた
め、請求項１に記載した樹脂材の接合方法は、レーザ吸
収特性を備えた第１の樹脂材の表面に形成された係合凹
部内に、レーザ透過性を備えた第２の樹脂材の背面に形
成された係合凸部を嵌合させる工程と、上記第２の樹脂
材の表面に、レーザ透過性を備えた押さえ治具を所定の
圧力で当接させる工程と、上記押さえ治具の表面にレー
ザビームを照射し、押さえ治具及び第２の樹脂材の係合
凸部内を透過したレーザビームによって上記第１の樹脂
材の係合凹部内面を加熱する工程と、この加熱によって
溶融した第１の樹脂材の係合凹部を第１の樹脂材の係合
凸部に融着させる工程とを備えたことを特徴としてい
る。In order to achieve the above object, a method for joining resin materials according to a first aspect of the present invention is such that an engaging recess formed on the surface of a first resin material having laser absorption characteristics. A step of fitting therein an engaging convex portion formed on the back surface of the second resin material having laser transparency, and a pressing jig having laser transparency on the surface of the second resin material. A step of bringing the first resin material into contact with the first resin material by a predetermined pressure, and irradiating the surface of the pressing jig with a laser beam, and transmitting the laser beam through the engaging projections of the pressing jig and the second resin material to the first resin material. Of heating the inner surface of the engaging concave portion, and fusing the engaging concave portion of the first resin material melted by the heating to the engaging convex portion of the first resin material. .

【００９】この接合方法は、予め第１の樹脂材と第２の
樹脂材とを位置決め配置しておいた上で、透過レーザビ
ームによって第１の樹脂材の係合凹部内面を溶融させて
第２の樹脂材の係合凸部に融着させるものであり、接着
剤や金型を用いることなく、第１の樹脂材と第２の樹脂
材間を高い位置精度で接合することが可能となる。しか
も、押さえ治具はレーザ透過性を備えており、レーザビ
ームの光路を妨げることがないため、第１の樹脂材の係
合凹部と第２の樹脂材の係合凸部との接触個所の真上を
押圧することで両者間の接合強度を高めることが可能と
なり、それだけ高い気密性を実現できる。In this joining method, the first resin material and the second resin material are preliminarily positioned and arranged, and then the inner surface of the engagement recess of the first resin material is melted by the transmitted laser beam. The second resin material is fused to the engaging convex portion, and the first resin material and the second resin material can be joined with high positional accuracy without using an adhesive or a mold. Become. In addition, since the holding jig has laser transparency and does not interfere with the optical path of the laser beam, the contact concave portion of the first resin material and the engagement convex portion of the second resin material are By pressing just above, it is possible to increase the bonding strength between the two, and it is possible to realize higher airtightness.

【００１０】また、請求項２に記載した樹脂材の接合方
法は、レーザ吸収特性を備えた第１の樹脂材の表面に形
成された係合凹部内に、レーザ透過性を備えた第２の樹
脂材の背面に形成された係合凸部を嵌合させる工程と、
上記第２の樹脂材の表面に、レーザ透過性を備えた押さ
え治具を所定の圧力で当接させる工程と、上記押さえ治
具の表面にレーザビームを照射し、押さえ治具及び第２
の樹脂材の係合凸部内を透過したレーザビームによって
上記第１の樹脂材の係合凹部内面を加熱する工程と、第
１の樹脂材の係合凹部内面からの伝導熱によって溶融し
た第２の樹脂材の係合凸部を、第１の樹脂材の係合凹部
内面に融着させる工程とを備えたことを特徴としてい
る。この接合方法は、透過レーザビームによって第１の
樹脂材の係合凹部内面を加熱し、その伝導熱によって第
２の樹脂材の係合凸部側を溶融させるものであり、第１
の樹脂材の融点が第２の樹脂材の融点より高い場合であ
っても接合することが可能となる。Further, in the method of joining resin materials according to a second aspect of the invention, there is provided a second laser-transmissive member in the engaging recess formed on the surface of the first resin material having the laser absorption characteristic. A step of fitting an engaging convex portion formed on the back surface of the resin material,
A step of bringing a pressing jig having laser transparency into contact with the surface of the second resin material at a predetermined pressure, and irradiating the surface of the pressing jig with a laser beam to hold the pressing jig and the second jig.
Of heating the inner surface of the engaging recess of the first resin material by the laser beam that has passed through the engaging projection of the resin material, and melting the conductive surface from the inner surface of the engaging recess of the first resin material. And a step of fusing the engaging convex portion of the resin material to the inner surface of the engaging concave portion of the first resin material. In this joining method, the inner surface of the engaging concave portion of the first resin material is heated by the transmitted laser beam, and the engaging convex portion side of the second resin material is melted by the conduction heat thereof.
Even if the melting point of the resin material is higher than the melting point of the second resin material, it is possible to bond them.

【００１１】また、請求項３に記載した樹脂材の接合方
法は、レーザ吸収特性を備えた第１の樹脂材の表面に形
成された係合凹部内に、レーザ透過性を備えた第２の樹
脂材の背面に形成された係合凸部を嵌合させる工程と、
上記第２の樹脂材の表面に、レーザ透過性物質よりなる
押さえ治具を所定の圧力で当接させる工程と、上記押さ
え治具の表面にレーザビームを照射し、押さえ治具及び
第２の樹脂材の係合凸部内を透過したレーザビームによ
って上記第１の樹脂材の係合凹部内面を加熱する工程
と、この加熱によって溶融した第１の樹脂材の係合凹部
内面と、該係合凹部内面からの伝導熱によって溶融した
第２の樹脂材の係合凸部とを融着させる工程とを備えた
ことを特徴としている。この接合方法は、レーザビーム
の照射によって第１の樹脂材の係合凹部内面及び第２の
樹脂材の係合凸部を同時に溶融させるものであり、両者
間を強固に接合することが可能となる。In the method for joining resin materials according to a third aspect of the invention, there is provided a second resin material having a laser transmitting property in an engaging recess formed in the surface of the first resin material having a laser absorption characteristic. A step of fitting an engaging convex portion formed on the back surface of the resin material,
A step of bringing a pressing jig made of a laser-transparent material into contact with the surface of the second resin material at a predetermined pressure, and irradiating a laser beam on the surface of the pressing jig to hold the pressing jig and the second jig. The step of heating the inner surface of the engagement concave portion of the first resin material by the laser beam transmitted through the engagement convex portion of the resin material, the inner surface of the engagement concave portion of the first resin material melted by the heating, and the engagement And a step of fusing the engaging convex portion of the second resin material melted by the conductive heat from the inner surface of the concave portion. According to this joining method, the inner surface of the engagement recess of the first resin material and the engagement projection of the second resin material are simultaneously melted by the irradiation of the laser beam, and it is possible to firmly join the both. Become.

【００１２】さらに、請求項４に記載した樹脂材の接合
方法は、レーザ透過性を備えた第１の樹脂材の表面に形
成された係合凹部の内面、及びレーザ透過性を備えた第
２の樹脂材の背面に形成された係合凸部の表面の少なく
とも一方にレーザ吸収体を被着させる工程と、上記第１
の樹脂材の係合凹部内に、第２の樹脂材の係合凸部を嵌
合させる工程と、上記第２の樹脂材の表面に、レーザ透
過性を備えた押さえ治具を所定の圧力で当接させる工程
と、上記押さえ治具の表面にレーザビームを照射し、押
さえ治具及び第２の樹脂材の係合凸部内を透過したレー
ザビームによって上記レーザ吸収体を加熱し、第１の樹
脂材の係合凹部内面及び第２の樹脂材の係合凸部表面の
少なくとも一方を溶融させる工程と、溶融した樹脂材を
他方の樹脂材に融着させる工程とを備えたことを特徴と
している。このように、レーザ吸収体を予め介装させる
ことによって、第１の樹脂材及び第２の樹脂材が共にレ
ーザ透過性を備えている場合であっても、レーザ照射に
よる接合を実現できる。Further, in the method of joining resin materials according to a fourth aspect, the inner surface of the engaging recess formed on the surface of the first resin material having laser transparency and the second surface having laser transparency. The step of attaching the laser absorber to at least one of the surfaces of the engaging protrusions formed on the back surface of the resin material,
The step of fitting the engaging convex portion of the second resin material into the engaging concave portion of the resin material, and the pressing jig having laser transparency is applied to the surface of the second resin material at a predetermined pressure. And a laser beam is applied to the surface of the pressing jig, and the laser absorber is heated by the laser beam transmitted through the engaging projection of the pressing jig and the second resin material, The step of melting at least one of the inner surface of the engagement recess of the resin material and the surface of the engagement projection of the second resin material, and the step of fusing the melted resin material to the other resin material. I am trying. By thus interposing the laser absorber in advance, it is possible to realize joining by laser irradiation even when both the first resin material and the second resin material have laser transparency.

【００１３】[0013]

【発明の実施の形態】図１及び図２は、この発明に係る
接合方法を示す断面図である。すなわち、図１に示すよ
うに、加工テーブル10上に載置された第１の樹脂材12の
表面には係合凹部14が形成されており、該凹部14に第２
の樹脂材16の背面に形成された係合凸部18が嵌合され
る。また、第２の樹脂材16の表面側には、押さえ治具
（ジグ）20の先端部22が当接される。第１の樹脂材12
は、レーザ吸収特性に優れた樹脂材（例えばABS樹脂）
よりなる。また、第２の樹脂材16は、レーザ透過性に優
れた樹脂材（例えばアクリル系樹脂）よりなる。さら
に、上記押さえ治具20の少なくとも先端部22は、レーザ
透過性に優れた樹脂材やガラス材よりなる。1 and 2 are cross-sectional views showing a joining method according to the present invention. That is, as shown in FIG. 1, an engaging recess 14 is formed on the surface of the first resin material 12 placed on the processing table 10, and the second recess is formed in the recess 14.
The engaging convex portion 18 formed on the back surface of the resin material 16 is fitted. Further, the tip portion 22 of the pressing jig (jig) 20 is brought into contact with the front surface side of the second resin material 16. First resin material 12
Is a resin material with excellent laser absorption characteristics (for example, ABS resin)
Consists of. The second resin material 16 is made of a resin material (for example, acrylic resin) having excellent laser transparency. Furthermore, at least the tip 22 of the pressing jig 20 is made of a resin material or a glass material having excellent laser transparency.

【００１４】この状態において、図２に示すように、押
さえ治具20の全体に加工テーブル10側に向けて所定の圧
力を加えると共に、押さえ治具先端部22の表面に半導体
レーザ（波長：780nm、808nm、840nm、940nm等）のビー
ムＬを照射すると、押さえ治具の先端部22及び第２の樹
脂材の凸部18内を透過したレーザビームＬが第１の樹脂
材の凹部14の内面に到達する。この結果、第１の樹脂材
12の凹部14の内面がレーザビームＬを吸収して発熱す
る。そして、第１の樹脂材12の凹部14の内面が溶融する
と共に、この伝導熱を受けて第２の樹脂材16の凸部18の
外面（先端面及び側面の一部）が溶融し、図３に示すよ
うに、両者間の溶融部24を介して第１の樹脂材12の係合
凹部14と第２の樹脂材16の係合凸部18間が融着する。レ
ーザビームの照射による樹脂材の溶融／硬化速度は比較
的速いため、すぐに押さえ治具20を引き上げて次の樹脂
材の加工に移行することができる。In this state, as shown in FIG. 2, a predetermined pressure is applied to the entire holding jig 20 toward the processing table 10 side, and a semiconductor laser (wavelength: 780 nm is applied on the surface of the holding jig tip portion 22). , 808 nm, 840 nm, 940 nm, etc.), the laser beam L transmitted through the tip portion 22 of the pressing jig and the convex portion 18 of the second resin material is applied to the inner surface of the concave portion 14 of the first resin material. To reach. As a result, the first resin material
The inner surface of the recess 14 of 12 absorbs the laser beam L and generates heat. Then, the inner surface of the concave portion 14 of the first resin material 12 is melted, and the outer surface (the tip surface and a part of the side surface) of the convex portion 18 of the second resin material 16 is melted by receiving the conductive heat, As shown in FIG. 3, the engagement concave portion 14 of the first resin material 12 and the engagement convex portion 18 of the second resin material 16 are fused through the fusion portion 24 between them. Since the melting / curing speed of the resin material due to the irradiation of the laser beam is relatively high, the pressing jig 20 can be immediately lifted to shift to the processing of the next resin material.

【００１５】上記のように、接合個所の真上に押さえ治
具20の先端部22が当接しているため、接合個所を強固に
密着させることが可能となる。この際、押さえ治具20の
先端部22がレーザ透過性を備えているため、レーザビー
ムＬの進路を妨げることもない。この結果、第１の樹脂
材12と第２の樹脂材16との間には、高度の気密性を備え
た空間Ｘが形成される。また、上記のように第１の樹脂
材12の表面に係合凹部14を形成したため、第２の樹脂材
16の係合凸部18との接触面積を広く確保でき、その分接
合強度を高めることが可能となる。As described above, since the tip end portion 22 of the pressing jig 20 is in contact with the joint just above the joint, it is possible to firmly adhere the joint. At this time, since the tip portion 22 of the pressing jig 20 has laser transparency, it does not hinder the path of the laser beam L. As a result, a space X having a high degree of airtightness is formed between the first resin material 12 and the second resin material 16. Further, since the engaging recess 14 is formed on the surface of the first resin material 12 as described above, the second resin material 12
It is possible to secure a large contact area with the engaging projections 18 of 16 and to increase the bonding strength accordingly.

【００１６】なお、上記した第１の樹脂材12、第２の樹
脂材16、押さえジグ20の素材はあくまでも一例であり、
使用するレーザビームの種類に応じて適宜変更可能であ
る。また、係合凹部14と係合凸部18との接触部分が線状
に延びている場合であっても、押さえ治具20の先端部22
は必ずしもこれに対応した線状に形成されている必要は
なく、係合凹部14と係合凸部18との接触部分の真上を数
ヶ所点状に押圧するだけでも一定の密着効果は得られ
る。したがって、ある程度汎用的な押さえ治具20を用意
して使い回すことにより、コストを抑えることもでき
る。The materials of the first resin material 12, the second resin material 16, and the pressing jig 20 described above are merely examples.
It can be appropriately changed depending on the type of laser beam used. Even when the contact portion between the engaging concave portion 14 and the engaging convex portion 18 extends linearly, the tip end portion 22 of the pressing jig 20.
Does not necessarily have to be formed in a linear shape corresponding to this, and a certain adhesion effect can be obtained by pressing the contact concave portion 14 and the engaging convex portion 18 just above the contact portion in several points. To be Therefore, it is possible to reduce the cost by preparing a pressing jig 20 that is versatile to some extent and using it again.

【００１７】上記にあっては、第１の樹脂材12がレーザ
吸収特性に優れた樹脂材よりなることを前提に説明した
が、第１の樹脂材12及び第２の樹脂材16が共にレーザ透
過性に優れた樹脂材よりなる場合であっても、レーザビ
ームの照射によって両者間を有効に接合することができ
る。このためには、図４に示すように、レーザ透過性を
備えた第１の樹脂材12の係合凹部14の内面に、予めレー
ザ吸収体28を膜状に被着させておく。つぎに、この凹部
14にレーザ透過性を備えた第２の樹脂材16の係合凸部18
を嵌合させると共に、第２の樹脂材16の表面にレーザ透
過性を備えた押さえ治具20の先端部22を所定の圧力で当
接させる。Although the above description has been made on the assumption that the first resin material 12 is made of a resin material having excellent laser absorption characteristics, both the first resin material 12 and the second resin material 16 are laser materials. Even when it is made of a resin material having excellent transparency, it is possible to effectively bond the two by irradiation with a laser beam. For this purpose, as shown in FIG. 4, a laser absorber 28 is previously applied in a film shape on the inner surface of the engaging recess 14 of the first resin material 12 having laser transparency. Next, this recess
The engaging convex portion 18 of the second resin material 16 having laser transparency in 14
And the tip portion 22 of the pressing jig 20 having laser transparency is brought into contact with the surface of the second resin material 16 at a predetermined pressure.

【００１８】この状態において、押さえ治具の先端部22
の表面にレーザビームを照射すると、押さえ治具の先端
部22及び第２の樹脂材の凸部18内を透過したレーザビー
ムが、第１の樹脂材の凹部14の内面に被着されたレーザ
吸収体28に入射する。この結果、レーザ吸収体28が発熱
し、その伝導熱を受けて第１の樹脂材12の凹部内面及び
第２の樹脂材16の凸部表面が溶融する。そして、この両
樹脂材の溶融部を介して第１の樹脂材12及び第２の樹脂
材16間が融着・接合されることとなる。In this state, the tip portion 22 of the pressing jig is
When the surface of the laser is irradiated with a laser beam, the laser beam transmitted through the tip portion 22 of the holding jig and the convex portion 18 of the second resin material is applied to the inner surface of the concave portion 14 of the first resin material. It is incident on the absorber 28. As a result, the laser absorber 28 generates heat and receives the conduction heat to melt the inner surface of the concave portion of the first resin material 12 and the surface of the convex portion of the second resin material 16. Then, the first resin material 12 and the second resin material 16 are fused and joined together via the fusion parts of both the resin materials.

【００１９】上記レーザ吸収体28としては、レーザに対
する吸収特性に優れた物質（例えば、トナーや塗料）が
該当する。なお、レーザ吸収体28を第１の樹脂材の凹部
14の内面に被着させる代わりに、第２の樹脂材の凸部18
の表面に被着させておくこともできる。あるいは、第１
の樹脂材の凹部14の内面及び第２の樹脂材の凸部18の表
面に被着させておいてもよい。As the laser absorber 28, a substance (for example, toner or paint) having an excellent absorption characteristic for laser is applicable. In addition, the laser absorber 28 is formed in the concave portion of the first resin material.
Instead of depositing on the inner surface of 14, the convex portion 18 of the second resin material
It can also be attached to the surface of. Or first
It may be adhered to the inner surface of the concave portion 14 of the resin material and the surface of the convex portion 18 of the second resin material.

【００２０】[0020]

【発明の効果】請求項１に記載した樹脂材の接合方法
は、予め第１の樹脂材と第２の樹脂材とを位置決め配置
しておいた上で、透過レーザビームによって第１の樹脂
材の係合凹部内面を溶融させて第２の樹脂材の係合凸部
に融着させるものであり、接着剤や金型を用いることな
く、第１の樹脂材と第２の樹脂材間を高い位置精度で接
合することが可能となる。この結果、接合構造物のリサ
イクルの容易化、全体の軽量化が図れると共に、接合時
のコストの削減、工程の簡素化、所要時間の短縮化が図
れる。しかも、押さえ治具はレーザ透過性を備えている
ため、第１の樹脂材の係合凹部と第２の樹脂材の係合凸
部との接触部分の真上を押圧することが可能となり、そ
れだけ両者間の接合強度を高めることが可能となり、高
い気密性を確保できる。According to the resin material joining method of the first aspect, the first resin material and the second resin material are preliminarily positioned and arranged, and then the first resin material is formed by the transmitted laser beam. The inner surface of the engaging concave portion is melted to be fused to the engaging convex portion of the second resin material, and the first resin material and the second resin material are separated from each other without using an adhesive or a mold. It is possible to join with high positional accuracy. As a result, it is possible to facilitate the recycling of the bonded structure, reduce the weight of the entire structure, reduce the cost at the time of bonding, simplify the process, and shorten the required time. Moreover, since the holding jig has laser transparency, it is possible to press the portion directly above the contact portion between the engaging concave portion of the first resin material and the engaging convex portion of the second resin material, As a result, the bonding strength between the two can be increased, and high airtightness can be secured.

【００２１】請求項２に記載した樹脂材の接合方法は、
透過レーザビームによって第１の樹脂材の係合凹部内面
を加熱し、その伝導熱によって第２の樹脂材の係合凸部
側を溶融させるものであり、第１の樹脂材の融点が第２
の樹脂材の融点より高い場合であっても接合することが
可能となる。The method for joining resin materials according to claim 2 is as follows:
The transmitted laser beam heats the inner surface of the engaging concave portion of the first resin material, and the conduction heat thereof melts the engaging convex portion side of the second resin material, and the melting point of the first resin material is the second.
Even if the melting point is higher than the melting point of the resin material, it is possible to bond the resin material.

【００２２】請求項３に記載した樹脂材の接合方法は、
レーザビームの照射によって第１の樹脂材の係合凹部内
面及び第２の樹脂材の係合凸部を同時に溶融させるもの
であり、両者間を強固に接合することが可能となる。The method for joining resin materials according to claim 3 is
By irradiating the laser beam, the inner surface of the engagement recess of the first resin material and the engagement projection of the second resin material are simultaneously melted, and it is possible to firmly bond the both.

【００２３】請求項４に記載した樹脂材の接合方法によ
れば、レーザ吸収体を予め介装させることにより、第１
の樹脂材及び第２の樹脂材が共にレーザ透過性を備えて
いる場合であっても、レーザビームの照射によって接合
可能となる。According to the resin material joining method of the fourth aspect, the laser absorber is preliminarily interposed to form the first member.
Even when both the resin material and the second resin material have laser transparency, they can be joined by irradiation with a laser beam.

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

【図１】この発明に係る接合方法を示す拡大部分断面図
である。FIG. 1 is an enlarged partial sectional view showing a joining method according to the present invention.

【図２】この発明に係る接合方法を示す拡大部分断面図
である。FIG. 2 is an enlarged partial sectional view showing a joining method according to the present invention.

【図３】この発明に係る接合方法の原理を示す模式図で
ある。FIG. 3 is a schematic diagram showing the principle of the joining method according to the present invention.

【図４】この発明に係る他の接合方法を示す拡大部分断
面図である。FIG. 4 is an enlarged partial sectional view showing another joining method according to the present invention.

【図５】従来の接着剤による接合方法を示す拡大部分断
面図である。FIG. 5 is an enlarged partial cross-sectional view showing a conventional joining method using an adhesive.

【図６】従来の熱圧着による接合方法を示す拡大部分断
面図である。FIG. 6 is an enlarged partial sectional view showing a conventional joining method by thermocompression bonding.

【図７】従来の熱圧着による接合方法を示す拡大部分断
面図である。FIG. 7 is an enlarged partial sectional view showing a conventional joining method by thermocompression bonding.

【符号の説明】[Explanation of symbols]

10 加工テーブル 12 第１の樹脂材 14 係合凹部 16 第２の樹脂材 18 係合凸部 20 押さえ治具 22 先端部 24 溶融部 28 レーザ吸収体 Ｌ レーザビーム Ｘ 気密空間 10 processing table 12 First resin material 14 Engagement recess 16 Second resin material 18 Engagement protrusion 20 Holding jig 22 Tip 24 fusion zone 28 Laser absorber L laser beam X airtight space

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】レーザ吸収特性を備えた第１の樹脂材の表
面に形成された係合凹部内に、レーザ透過性を備えた第
２の樹脂材の背面に形成された係合凸部を嵌合させる工
程と、 上記第２の樹脂材の表面に、レーザ透過性を備えた押さ
え治具を所定の圧力で当接させる工程と、 上記押さえ治具の表面にレーザビームを照射し、押さえ
治具及び第２の樹脂材の係合凸部内を透過したレーザビ
ームによって上記第１の樹脂材の係合凹部内面を加熱す
る工程と、 この加熱によって溶融した第１の樹脂材の係合凹部を第
１の樹脂材の係合凸部に融着させる工程と、 を備えたことを特徴とする樹脂材の接合方法。1. An engagement protrusion formed on the back surface of a second resin material having laser transparency is provided in an engagement recess formed on the surface of a first resin material having laser absorption characteristics. The step of fitting, the step of bringing a pressing jig having laser transparency into contact with the surface of the second resin material at a predetermined pressure, and the surface of the pressing jig is irradiated with a laser beam and pressed. A step of heating the inner surface of the engaging concave portion of the first resin material by the laser beam that has passed through the jig and the engaging convex portion of the second resin material, and the engaging concave portion of the first resin material melted by this heating And a step of fusion bonding to the engaging convex portion of the first resin material. 【請求項２】レーザ吸収特性を備えた第１の樹脂材の表
面に形成された係合凹部内に、レーザ透過性を備えた第
２の樹脂材の背面に形成された係合凸部を嵌合させる工
程と、 上記第２の樹脂材の表面に、レーザ透過性を備えた押さ
え治具を所定の圧力で当接させる工程と、 上記押さえ治具の表面にレーザビームを照射し、押さえ
治具及び第２の樹脂材の係合凸部内を透過したレーザビ
ームによって上記第１の樹脂材の係合凹部内面を加熱す
る工程と、 この第１の樹脂材の係合凹部内面からの伝導熱によって
溶融した第２の樹脂材の係合凸部を、第１の樹脂材の係
合凹部内面に融着させる工程と、 を備えたことを特徴とする樹脂材の接合方法。2. An engagement protrusion formed on the back surface of a second resin material having laser transparency is provided in an engagement recess formed on the surface of a first resin material having laser absorption characteristics. The step of fitting, the step of bringing a pressing jig having laser transparency into contact with the surface of the second resin material at a predetermined pressure, and the surface of the pressing jig is irradiated with a laser beam and pressed. Heating the inner surface of the engagement recess of the first resin material with the laser beam that has passed through the jig and the engagement projection of the second resin material; and conducting the heat from the inner surface of the engagement recess of the first resin material. And a step of fusing the engagement convex portion of the second resin material melted by heat to the inner surface of the engagement concave portion of the first resin material. 【請求項３】レーザ吸収特性を備えた第１の樹脂材の表
面に形成された係合凹部内に、レーザ透過性を備えた第
２の樹脂材の背面に形成された係合凸部を嵌合させる工
程と、 上記第２の樹脂材の表面に、レーザ透過性物質よりなる
押さえ治具を所定の圧力で当接させる工程と、 上記押さえ治具の表面にレーザビームを照射し、押さえ
治具及び第２の樹脂材の係合凸部内を透過したレーザビ
ームによって上記第１の樹脂材の係合凹部内面を加熱す
る工程と、 この加熱によって溶融した第１の樹脂材の係合凹部内面
と、該係合凹部内面からの伝導熱によって溶融した第２
の樹脂材の係合凸部とを融着させる工程と、 を備えたことを特徴とする樹脂材の接合方法。3. An engagement projection formed on the back surface of a second resin material having laser transparency is provided in an engagement recess formed on the surface of a first resin material having laser absorption characteristics. The step of fitting, the step of bringing a pressing jig made of a laser permeable substance into contact with the surface of the second resin material at a predetermined pressure, and the surface of the pressing jig is irradiated with a laser beam to press the surface. A step of heating the inner surface of the engaging concave portion of the first resin material by the laser beam that has passed through the jig and the engaging convex portion of the second resin material, and the engaging concave portion of the first resin material melted by this heating The inner surface and the second portion melted by conduction heat from the inner surface of the engaging recess
And a step of fusing the engaging convex portions of the resin material with each other, and a method of joining the resin material. 【請求項４】レーザ透過性を備えた第１の樹脂材の表面
に形成された係合凹部の内面、及びレーザ透過性を備え
た第２の樹脂材の背面に形成された係合凸部の表面の少
なくとも一方に、レーザ吸収体を被着させる工程と、 上記第１の樹脂材の係合凹部内に、第２の樹脂材の係合
凸部を嵌合させる工程と、 上記第２の樹脂材の表面に、レーザ透過性を備えた押さ
え治具を所定の圧力で当接させる工程と、 上記押さえ治具の表面にレーザビームを照射し、押さえ
治具及び第２の樹脂材の係合凸部内を透過したレーザビ
ームによって上記レーザ吸収体を加熱し、第１の樹脂材
の係合凹部内面及び第２の樹脂材の係合凸部表面の少な
くとも一方を溶融させる工程と、 溶融した樹脂材を他方の樹脂材に融着させる工程と、 を備えたことを特徴とする樹脂材の接合方法。4. An inner surface of an engagement recess formed on the surface of a first resin material having laser transparency, and an engagement projection formed on the back surface of a second resin material having laser transparency. Attaching a laser absorber to at least one of the surfaces of the first resin material, fitting the engagement convex portion of the second resin material into the engagement concave portion of the first resin material, A step of bringing a pressing jig having a laser transparency into contact with the surface of the resin material at a predetermined pressure, and irradiating the surface of the pressing jig with a laser beam to remove the pressing jig and the second resin material. Heating the laser absorber with a laser beam that has passed through the inside of the engagement protrusion to melt at least one of the inner surface of the engagement recess of the first resin material and the surface of the engagement protrusion of the second resin material; A step of fusing one resin material to the other resin material, and Method for joining fat material.
JP2002081542A 2002-03-22 2002-03-22 Bonding method for resin material Pending JP2003276087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Family

ID=29206585

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Country Link
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006012502A (en) * 2004-06-23 2006-01-12 Koito Mfg Co Ltd Device and method for manufacturing vehicular lighting fixture
JP2006168252A (en) * 2004-12-17 2006-06-29 Koito Mfg Co Ltd Light welding apparatus and light welding method
JP2006205515A (en) * 2005-01-27 2006-08-10 Hitachi Metals Ltd Method and apparatus for coating joint of resin-coated steel pipe
JP2007261666A (en) * 2006-03-29 2007-10-11 Kirin Holdings Co Ltd Device and method for manufacturing hermetic container
JP2009056755A (en) * 2007-09-03 2009-03-19 Koito Mfg Co Ltd Presser tool and welding method
EP2255952A1 (en) * 2009-05-29 2010-12-01 Stanley Electric Co., Ltd. Method for manufacturing resin mold assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006012502A (en) * 2004-06-23 2006-01-12 Koito Mfg Co Ltd Device and method for manufacturing vehicular lighting fixture
JP4553296B2 (en) * 2004-06-23 2010-09-29 株式会社小糸製作所 A method for manufacturing a vehicular lamp and an apparatus for manufacturing a vehicular lamp.
JP2006168252A (en) * 2004-12-17 2006-06-29 Koito Mfg Co Ltd Light welding apparatus and light welding method
JP2006205515A (en) * 2005-01-27 2006-08-10 Hitachi Metals Ltd Method and apparatus for coating joint of resin-coated steel pipe
JP2007261666A (en) * 2006-03-29 2007-10-11 Kirin Holdings Co Ltd Device and method for manufacturing hermetic container
JP2009056755A (en) * 2007-09-03 2009-03-19 Koito Mfg Co Ltd Presser tool and welding method
EP2255952A1 (en) * 2009-05-29 2010-12-01 Stanley Electric Co., Ltd. Method for manufacturing resin mold assembly
US8506872B2 (en) 2009-05-29 2013-08-13 Stanley Electric Co., Ltd. Method for manufacturing resin mold assembly

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