JP2005298654A

JP2005298654A - Joining method

Info

Publication number: JP2005298654A
Application number: JP2004115990A
Authority: JP
Inventors: Ryuichi Furukawa; 龍一古川; Yusuke Taneda; 裕介種子田; Tarou Teru; 太郎照; Hisayoshi Oshima; 久慶大島; Shinji Kobayashi; 慎司小林; Shigeru Fujita; 滋藤田; Shinya Senoo; 晋哉妹尾; Kohei Shinpo; 晃平新保; Takashi Ogaki; 傑大垣
Original assignee: Ricoh Co Ltd
Current assignee: Ricoh Co Ltd
Priority date: 2004-04-09
Filing date: 2004-04-09
Publication date: 2005-10-27

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for joining an adherend member to an adhesion member, by which the relative position slippage of the adherend member to the adhesion member due to the curing contraction of an energy ray-curing type adhesive can be reduced as much as possible and highly precisely positioned in spite of an adhesive form, or the like, on high precise adhesion in optical equipment. <P>SOLUTION: This method for highly precisely positioning the adherend member to the adhesion member and then joining the adherend member to the adhesion member with the energy ray-curing type adhesive is characterized by mixing a substance used as a means for compensating a volume contraction change by the curing contraction of the energy ray-curing type adhesive. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、接合方法に関し、特に、被接着部材と接着部材との間にエネルギー線硬化型接着剤を介在させた状態で両者を高精度に位置決めした後、エネルギー線硬化型接着剤の硬化により接合する接合方法に関する。 The present invention relates to a joining method, and in particular, after the energy beam curable adhesive is positioned between the adherend member and the adhesive member with high accuracy, the energy beam curable adhesive is cured. The present invention relates to a joining method for joining.

従来、図７に示すように部品間の接合等に際して、被接着部材１に接着部材２を接着する接着剤３としては、熱硬化型や光硬化型等のエネルギー線硬化型接着剤が知られており、この中にはいくつかの性質を兼ね備えたものもある。これらのエネルギー線硬化型接着剤は、反応速度が速く硬化時間が短くてすむことから、生産工程の効率化を図る目的で様々な分野で利用されている。
このエネルギー線硬化型接着剤では、硬化する際に体積収縮（硬化収縮：ｂ）が起こり、この硬化収縮に伴って応力（硬化収縮力）が発生する（図７参照）。一般に、アクリル系紫外線硬化型樹脂では５〜１２％、エポキシ系紫外線硬化型樹脂では２〜７％程度硬化収縮し、この硬化収縮量に比例して硬化収縮力が発生する。この硬化収縮力は、接着強度の面においては僅かな強度低下が生じるのみで大きな影響を与えないが、被接着部材と接着部材との位置のずれを生じさせる点では、特に部品接合において高精度の位置調整が要求される精密組立においては大きな問題となる。
すなわち、精密組立の工程において、被接着部材に対する接着部材の位置合わせを厳密に調整した後に、この被接着部材と接着部材とを接合するエネルギー線硬化型接着剤の硬化収縮の影響でその調整した位置にずれが生じると、精密組立品の機能を阻害してしまう可能性がある。
このような問題を回避するために、以下のようなものが発案されている。まず第１には、被接着部材に支持柱を設けて接着部材と当接させるものや、あるいは治工具などにより接着部材ならびに被接着部材の相対的位置関係を固定し、エネルギー線硬化型接着剤を硬化することによって、無理やり硬化収縮させない方法である（例えば、特許文献１及び特許文献２参照）。 Conventionally, as the adhesive 3 for adhering the adhesive member 2 to the adherend member 1 at the time of joining between components as shown in FIG. 7, an energy ray curable adhesive such as a thermosetting type or a photocurable type is known. Some of these have several properties. These energy ray curable adhesives are used in various fields for the purpose of improving the efficiency of the production process because the reaction rate is high and the curing time is short.
In this energy ray curable adhesive, volume shrinkage (curing shrinkage: b) occurs during curing, and stress (curing shrinkage force) is generated along with the curing shrinkage (see FIG. 7). Generally, the acrylic ultraviolet curable resin is cured and contracted by about 5 to 12%, and the epoxy ultraviolet curable resin is cured and contracted by about 2 to 7%, and a curing shrinkage force is generated in proportion to the amount of curing shrinkage. This curing shrinkage force causes only a slight decrease in strength in terms of adhesive strength, and does not have a significant effect. However, it is highly accurate especially in component joining in that it causes a positional shift between the adherend and adhesive. This is a serious problem in precision assembly that requires position adjustment.
That is, in the precision assembly process, after adjusting the position of the adhesive member with respect to the adherend member strictly, the adjustment was effected by the effect of curing shrinkage of the energy beam curable adhesive that joins the adherend member and the adhesive member. If the position is displaced, the function of the precision assembly may be hindered.
In order to avoid such a problem, the following has been proposed. First of all, an energy beam curable adhesive is provided by fixing a relative positional relationship between the adhesive member and the adherend member by using a support pillar provided on the adherend member and contacting the adhesive member, or a jig or the like. This is a method that does not forcibly cure and shrink by curing (see, for example, Patent Document 1 and Patent Document 2).

特許文献１は、接着剤の収縮によって発生するレンズの取付方向の変位を低減することにより、レンズの取付精度を向上させ、所望の光学特性を満たすことを目的とするもので、ｆθレンズ取付台にｆθレンズを支持し、取付台とｆθレンズとを接着するのに、取付台にｆθレンズを支持する支持基準点を有する突起を形成した支持柱を設けてｆθレンズと支持基準点とを当接し、突起の表面と、支持柱の上面と、ｆθレンズの支持基準点と当接した部分の周辺部と、を接着することによりｆθレンズを取付ける構成をとっている。
特許文献２は、複数の反射ミラーの相対位置を精度良く出し、その状態で接着することにより、光学性能を向上させたプロジェクタ及び光学機器を提供するものである。具体的な方法は、先ず、反射ミラー保持材と反射ミラー固定材の接着を行い、また反射ミラー固定材と反射ミラー取付部材の接着を行う。接着が終わったら、反射ミラー位置決め治具を取り外し完成品とする。反射ミラー取付部材の寸法精度が求める精度に達していなかったり、バラツキが生じた場合は、Ｚ方向は蓋状の反射ミラー固定材と反射ミラー保持材のボス形状部のＺ方向の相対の動きで吸収し、Ｘ、Ｙ方向は蓋状の反射ミラー固定材と反射ミラー取付部材のＸ、Ｙ方向の相対の動きで吸収しそのまま相対位置関係を崩さないまま保持接着する。
光デバイス組立の際、溶接作業性がよく、しかも光学レンズの気密封止部分の信頼性が高く、かつ光学的特性の良いレンズ部品を提供するものがある。その構成は、レンズ部品は、光学レンズと、光学レンズより熱膨張係数が少なくとも２０×１０^−７／℃以上高い金属ホルダと、低融点ガラスとにより構成され、金属ホルダに低融点ガラスを介在して気密封止された光学レンズが、金属ホルダの収縮作用により固定されることを特徴とし、また、レンズ部品の製造方法は、光学レンズを金属ホルダの内孔中に保持し、低融点ガラスを双方の隙間に塗布し、低融点ガラスが融ける温度に加熱後徐冷することにより、前記のレンズ部品を製造することを特徴とする（例えば、特許文献３参照）。 Patent Document 1 aims to improve lens mounting accuracy and satisfy desired optical characteristics by reducing displacement in the lens mounting direction caused by shrinkage of an adhesive. In order to support the fθ lens and bond the mounting base and the fθ lens, the mounting base is provided with a support column having a protrusion having a support reference point for supporting the fθ lens, and the fθ lens and the support reference point are matched. The fθ lens is attached by adhering the surface of the protrusion, the upper surface of the support column, and the peripheral portion of the portion in contact with the support reference point of the fθ lens.
Patent Document 2 provides a projector and an optical apparatus that have improved optical performance by accurately determining the relative positions of a plurality of reflecting mirrors and bonding them in that state. Specifically, first, the reflecting mirror holding material and the reflecting mirror fixing material are bonded, and the reflecting mirror fixing material and the reflecting mirror mounting member are bonded. After bonding, remove the reflecting mirror positioning jig to make the finished product. If the dimensional accuracy of the reflecting mirror mounting member does not reach the required accuracy, or if variations occur, the Z direction is the relative movement in the Z direction of the boss-shaped part of the lid-shaped reflecting mirror fixing material and the reflecting mirror holding material. Absorbed and absorbed in the X and Y directions by the relative movement of the lid-shaped reflecting mirror fixing member and the reflecting mirror mounting member in the X and Y directions, and held and bonded without breaking the relative positional relationship.
When assembling an optical device, there are some which provide a lens component with good welding workability, high reliability of the hermetic sealing portion of the optical lens, and good optical characteristics. The lens component is composed of an optical lens, a metal holder whose coefficient of thermal expansion is at least 20 × 10 ⁻⁷ / ° C. higher than that of the optical lens, and a low-melting glass, and the low-melting glass is interposed in the metal holder. The optical lens that is hermetically sealed is fixed by the shrinking action of the metal holder, and the manufacturing method of the lens component includes holding the optical lens in the inner hole of the metal holder and The lens component is manufactured by applying to both gaps, heating to a temperature at which the low melting point glass melts, and then slowly cooling (see, for example, Patent Document 3).

また、硬化収縮や吸湿による体積変化を抑制でき、更には、塗布時の形状制御が可能であるＵＶ硬化型接着剤と該接着剤を用いた接着方法を提供するものとして、ＵＶ光を照射することにより硬化するＵＶ硬化型接着剤において、前記硬化に充分な光量を得られる範疇にある、粒径と密度を調整した充填材を添加することにより、接着剤形状の経時変化を抑え、フレームと部品の固定を恒久的に行なうようにしたＵＶ硬化型接着剤を得るものである。なお、充填材をＵＶ透過型とすることにより、充填材の添加量を上げることができ、このとき充填材形状がランダムであれば、よりリジットな固定が可能となる。さらに、充填材に磁性材料を用いることにより、磁場による任意の充填剤配向と接着剤形状の制御が可能となる。さらに、部材間の接着時に部材に押圧をかけてＵＶ照射を行なうことにより、充填材の固定機能をより有効に働かせることができるという方法が開示されている（例えば、特許文献４参照）。
また、線収縮による内部歪みとこれに伴う光学的性能の低下が少ない光学部材を提供することを目的とするものがある。その構成は、低分子量の成分を予め低減し、線収縮率の小さい接着剤を用いて光学部材同士（石英製レンズと真鍮製セル）を互いに固定するものである。本発明によれば、従来の弾性接着剤やエラストマー系接着剤では光学性能を満たすことができない光学部材の接合及び固定用の接着剤として、接着硬化時の線収縮率が小さい接着剤を使用することにより、線収縮による内部歪みとこれに伴う光学的性能の低下を抑えることができるというものである（例えば、特許文献５参照）。
光硬化型の接着剤を用いてコリメータレンズをレンズ支持部上に位置ずれを生じることなく正確に接着固定することのできるコリメータレンズの接着方法を提供するものがある。その解決手段は、コリメータレンズの外周円よりもわずかに径の大きな断面円弧状のレンズ支持部を半導体レーザの光軸と同心となるようにベースに一体形成し、該断面円弧状のレンズ支持部上に前記コリメータレンズを光硬化型の接着剤を用いて接着固定した光源装置のためのコリメータレンズの接着方法であって、前記コリメータレンズの上方から紫外線を照射し、コリメータレンズ側面の円筒レンズとしての集光作用を利用して接着剤を所定の狭い幅だけ光軸方向全幅にわたって硬化した後、コリメータレンズ側面の円筒レンズとしての光拡散作用を利用して接着剤の全面を硬化するというものである（例えば、特許文献６参照）。 Furthermore, UV light can be applied to provide a UV curable adhesive capable of suppressing volume change due to curing shrinkage and moisture absorption, and further capable of controlling the shape at the time of application and an adhesive method using the adhesive. In the UV curable adhesive that cures by the above, by adding a filler whose particle size and density are adjusted, which is in a range where a sufficient amount of light for curing can be obtained, the temporal change of the adhesive shape is suppressed, and the frame and A UV curable adhesive is obtained in which the parts are permanently fixed. In addition, if the filler is made of a UV transmissive type, the amount of filler added can be increased. If the shape of the filler is random at this time, more rigid fixation is possible. Furthermore, by using a magnetic material for the filler, it is possible to control the orientation of the filler and the shape of the adhesive by a magnetic field. Furthermore, a method is disclosed in which the fixing function of the filler can be made to work more effectively by applying UV irradiation while pressing the members at the time of bonding between the members (see, for example, Patent Document 4).
Another object of the present invention is to provide an optical member that is less susceptible to internal distortion due to linear shrinkage and associated optical performance degradation. The constitution is such that the low molecular weight components are reduced in advance and the optical members (quartz lens and brass cell) are fixed to each other using an adhesive having a small linear shrinkage rate. According to the present invention, an adhesive having a small linear shrinkage rate at the time of adhesive curing is used as an adhesive for joining and fixing optical members that cannot satisfy optical performance with conventional elastic adhesives or elastomer adhesives. Thus, it is possible to suppress internal distortion due to linear contraction and a decrease in optical performance associated therewith (see, for example, Patent Document 5).
There are some which provide a method for adhering a collimator lens by using a photo-curing type adhesive and capable of accurately adhering and fixing the collimator lens on the lens support without causing a positional shift. The solution is to form a cross-section arc-shaped lens support portion slightly larger in diameter than the outer circumference of the collimator lens integrally with the base so as to be concentric with the optical axis of the semiconductor laser. A collimator lens bonding method for a light source device in which the collimator lens is bonded and fixed using a photo-curing type adhesive, and ultraviolet rays are irradiated from above the collimator lens to form a cylindrical lens on a side surface of the collimator lens After the adhesive is cured over the entire width in the optical axis direction by a predetermined narrow width using the light condensing action, the entire surface of the adhesive is cured using the light diffusion action as a cylindrical lens on the side surface of the collimator lens. Yes (for example, see Patent Document 6).

次に、熱変形によるワークの固定精度の悪化を防止した紫外線硬化型接着剤を用いる接着方法及び接着装置を提供するものがある。解決手段として、一対のワーク間に紫外線硬化型接着剤を充填し、充填された紫外線硬化型接着剤に紫外線を照射して硬化させる方法及び装置において、紫外線硬化型接着剤を複数回に分けて吐出し、各吐出毎に層を形成し、各層を形成する毎にこの層に紫外線を照射して硬化させる。各層毎に硬化するので、紫外線エネルギーの硬化反応への変換効率を高めることができ、熱変形による接着後のワーク固定精度の悪化を防ぐことができるというものである（例えば、特許文献７参照）。
さらに、生産性を低下させることなく、ＵＶ硬化接着剤によって複数の部材同士を高い位置精度で接着可能な接着方法、およびこの方法を用いた光ヘッド装置の製造方法を提供するものがある。解決手段は、光ヘッド装置の製造方法において、ＵＶ硬化接着剤が半硬化するまで、ＵＶ硬化接着剤に対して照射強度が低い条件でＵＶを照射する第１工程と、この第１工程で半硬化させたＵＶ硬化接着剤に対して照射強度が高い条件でＵＶを照射する第２工程とを行うため、ＵＶ硬化接着剤Ｒの各塗布位置の間で収縮バランスが崩れにくい。また、第１工程を行っている途中に、フレームと、受光素子およびＣＤレーザダイオードとの位置関係を強制的に調整するため、フレームに対して光学素子を高い位置精度で接着固定できるというものである（例えば、特許文献８参照）。 Next, there is an apparatus that provides an adhesion method and an adhesion apparatus using an ultraviolet curable adhesive that prevents deterioration of work fixing accuracy due to thermal deformation. As a solution, in a method and apparatus for filling an ultraviolet curable adhesive between a pair of workpieces and irradiating the filled ultraviolet curable adhesive with ultraviolet rays, the ultraviolet curable adhesive is divided into a plurality of times. A layer is formed for each discharge, and each layer is cured by irradiating the layer with ultraviolet rays. Since each layer is cured, the conversion efficiency of ultraviolet energy into a curing reaction can be increased, and deterioration of work fixing accuracy after adhesion due to thermal deformation can be prevented (see, for example, Patent Document 7). .
Furthermore, there are some which provide a bonding method capable of bonding a plurality of members with high positional accuracy with a UV curable adhesive without lowering the productivity, and a method for manufacturing an optical head device using this method. In the method of manufacturing an optical head device, a solution includes a first step of irradiating UV under a condition that irradiation intensity is low with respect to the UV curable adhesive until the UV curable adhesive is semi-cured, Since the cured UV curable adhesive is subjected to the second step of irradiating UV under conditions where the irradiation intensity is high, the shrinkage balance between the application positions of the UV curable adhesive R is not easily lost. Further, during the first step, the positional relationship between the frame, the light receiving element and the CD laser diode is forcibly adjusted, so that the optical element can be bonded and fixed to the frame with high positional accuracy. (For example, refer to Patent Document 8).

また、面精度を維持しながら光学部材の接着効率を向上させるものがある。解決手段は、支持台に光制御部、露光装置、検出部を配置し、支持台上に被接着部材を載置する。光制御部のシャッタを全開にし、露光装置から紫外線を照射し、検出部で被接着部材を透過した紫外線を検出し、露光装置による紫外線の照射を停止する。検出部で得られた情報を基に、演算部は光制御部のシャッタ開放量を演算し、光制御部の紫外線の透過量を小面積ごとに調整する。調整が終ると、被接着部材上に紫外線硬化型接着剤を塗布し、光学部材を被接着部材上に配置し、露光装置を点灯し紫外線により接着剤を硬化させるというものである（例えば、特許文献９参照）。
貫通する嵌合孔を有する保持部材と、上記嵌合孔に嵌着される半導体レーザと、上記保持部材の表面に保持されるコリメータレンズと、該コリメータレンズより出射されるレーザ光を成形するアパーチャを有し、上記保持部材に取り付けられるアパーチャ形成部材とにより構成され、上記保持部材は、上記コリメータレンズの下側を接着剤を介して接着する光軸方向とほぼ平行な凹面状上表面を有し、上記保持部材に設けられるコリメータレンズの保持構造は、３軸方向に位置調整された上記コリメータレンズと上記保持部材の凹面状上表面との間に形成される隙間に接着剤を充填して固着した構造であることを特徴とする光源装置も開示されている（例えば、特許文献１０参照）。
特開平０７−１７５０００号公報特開２００３−５７５２９公報特開平０８−３１３７７９号公報特開平１０−１２１０１３号公報特開２００２−３６２９４８公報特開平０９−２４３９６２号公報特開平１０−７９９１号公報特開２００３−１８３５９７公報特開２００１−３５００７２公報特許第３３７５４２９号 In addition, there is one that improves the bonding efficiency of the optical member while maintaining the surface accuracy. The solution means that a light control unit, an exposure device, and a detection unit are arranged on a support base, and the adherend member is placed on the support base. The shutter of the light control unit is fully opened, ultraviolet rays are irradiated from the exposure device, the ultraviolet rays transmitted through the adherend member are detected by the detection unit, and the irradiation of the ultraviolet rays by the exposure device is stopped. Based on the information obtained by the detection unit, the calculation unit calculates the shutter opening amount of the light control unit, and adjusts the amount of transmitted ultraviolet light of the light control unit for each small area. When the adjustment is completed, an ultraviolet curable adhesive is applied onto the adherend member, an optical member is placed on the adherend member, the exposure device is turned on, and the adhesive is cured by ultraviolet rays (for example, a patent) Reference 9).
A holding member having a fitting hole penetrating through, a semiconductor laser fitted in the fitting hole, a collimator lens held on the surface of the holding member, and an aperture for shaping laser light emitted from the collimator lens And an aperture forming member attached to the holding member, and the holding member has a concave upper surface substantially parallel to the optical axis direction for bonding the lower side of the collimator lens with an adhesive. The collimator lens holding structure provided on the holding member is formed by filling an adhesive into a gap formed between the collimator lens whose position is adjusted in three axial directions and the concave upper surface of the holding member. A light source device having a fixed structure is also disclosed (for example, see Patent Document 10).
JP 07-175000 A JP 2003-57529 A Japanese Patent Laid-Open No. 08-313779 JP-A-10-121013 JP 2002-362948 A Japanese Patent Laid-Open No. 09-243966 JP-A-10-7991 JP 2003-183597 A JP 2001-350072 A Japanese Patent No. 3375429

上述のように、エネルギー線硬化型接着剤自体に手を加え、エネルギー線硬化型接着剤の替わりに低融点ガラスを使用するものや、セラミック微粒子を添加したり、充填材を添加したりするものや、低分子量の硬化収縮の小さい材料を採用して硬化収縮量を極力小さくする方法が提案されている（例えば、特許文献３及至特許文献５参照）。
また、照射するＵＶ光を集光して仮固定した後発散光にして本固定するものや、光硬化型接着剤を塗布するごとに硬化させて熱変形によるずれを抑えるものや、半硬化した後にレンズ等の位置を調整し本硬化する方法が提案されている（例えば、特許文献６及至特許文献８参照）。
さらに、照射するＵＶ光を制御する方法であり、照射するＵＶ光を制御してばらつきを無くし、硬化収縮の均一性を向上させる方法が提案されている（例えば、特許文献９及び１０参照）。
しかしながら、特許文献１に記載の発明は、面接着を想定したものであり、例えば多軸調整等のためにエネルギー線硬化型接着剤を厚く、多量に必要とする場合等には利用できず接着形態が限定されるという問題がある。また、被接着物の構造に制限がある。一方、特許文献２に記載の発明は、予め用意された治工具の精度を厳しく管理しなければならないし、また無理やり被接着部材や接着物を動かないように矯正しているので、接着剤に硬化応力が残り、耐熱試験などにより、被接着剤と接着物の相対位置が保てない、あるいは保てないと予想される。
また、特許文献３に記載の発明は、エネルギー線硬化型接着剤の替わりに低融点ガラスを使用しているが、被接着部材と接着部材がプラスチックなどのような、ガラスよりも融点が低い材料の場合は適応できない。特許文献４に記載の発明は、一般的に使われる充填剤は、エネルギー線硬化型接着剤より比重が大きいもの（セラミックス、金属粉等）が多く、多量に該接着剤を塗布した場合は、硬化収縮むらが発生し、ひいては被接着部材と接着部材の相対距離を変化させてしまう。特許文献５に記載の発明は、基本的に接着形態が面接着に限定されてしまう。また、一般的なエネルギー線硬化型接着剤と比較し、分子量が低いため、硬化後の接着剤弾性率が低く、あるいは接着強度を上げるため、被接着部材と接着部材の少なくともどちらか一方に表面処理を施す必要が生じる。また、材料が特殊であるため高価である。 As mentioned above, work on the energy beam curable adhesive itself, use low melting glass instead of energy beam curable adhesive, add ceramic fine particles, or add fillers In addition, a method has been proposed in which a material having a low molecular weight and low curing shrinkage is used to minimize the amount of curing shrinkage (see, for example, Patent Document 3 to Patent Document 5).
In addition, the UV light to be irradiated is condensed and temporarily fixed, and then fixed as diverging light. The photocuring adhesive is cured each time it is applied to suppress deviation due to thermal deformation. There has been proposed a method of adjusting the position of a lens or the like and performing main curing (see, for example, Patent Document 6 to Patent Document 8).
Further, there is a method for controlling the UV light to be irradiated, and a method for controlling the irradiated UV light to eliminate variations and improve the uniformity of curing shrinkage has been proposed (see, for example, Patent Documents 9 and 10).
However, the invention described in Patent Document 1 assumes surface adhesion, and cannot be used when, for example, a thick energy ray curable adhesive is needed for multi-axis adjustment, etc. There is a problem that the form is limited. Moreover, there is a limit to the structure of the adherend. On the other hand, the invention described in Patent Document 2 must strictly manage the accuracy of the jigs and tools prepared in advance, and it is corrected so as not to move the adherends and adhesives by force. The curing stress remains, and it is expected that the relative position between the adhesive and the bonded material cannot be maintained or cannot be maintained by a heat test or the like.
In addition, the invention described in Patent Document 3 uses a low-melting glass instead of the energy beam curable adhesive, but the material to be bonded and the bonding member have a lower melting point than glass, such as plastic. In the case of, it is not applicable. In the invention described in Patent Document 4, generally used fillers have a larger specific gravity (ceramics, metal powder, etc.) than the energy ray curable adhesive, and when the adhesive is applied in a large amount, Unevenness of curing shrinkage occurs, and as a result, the relative distance between the adherend member and the adhesive member is changed. In the invention described in Patent Document 5, the bonding form is basically limited to surface bonding. In addition, since the molecular weight is lower than that of a general energy beam curable adhesive, the adhesive has a low modulus of elasticity after curing, or has a surface on at least one of the adherend member and the adhesive member in order to increase the adhesive strength. It is necessary to perform processing. Moreover, since the material is special, it is expensive.

また、特許文献６に記載の発明では、最初に集光によって仮固定を行っても発散光による本固定の際の硬化収縮力が大きいため、位置ずれが大きくなってしまうという問題がある。一方、特許文献７に記載の発明では、熱変形以外の硬化収縮については考慮されておらず、硬化するごとにその硬化収縮量が積み重なっていくため、最終的には位置ずれが大きく現れることとなる。特許文献８に記載の発明では、未反応モノマーやポリマーが存在することが多く、耐熱試験等により被接着部材と接着物の相対位置が保てない、あるいは保てないと予想される。
そして、特許文献９及び特許文献１０の各文献に記載の発明では、エネルギー線硬化型接着剤の量を増やせばこれに比例して硬化収縮量も増え、その分位置ずれが大きくなるため、エネルギー線硬化型接着剤を多く必要とする接着形態等には好適とはいえず、また、添加剤を加えることにより光の透過率が低下しその分硬化させるためのエネルギーの照射量を多くする必要が生じる場合がある。
本発明は、上述した実情を考慮してなされたもので、接着形態等にかかわらずエネルギー線硬化型接着剤の硬化収縮による被接着部材と接着部材の相対的な位置ずれを極力抑制して高精度な位置合わせを可能とする被接着部材と接着部材の接合方法を提供するものである。具体的には、被接着部材と接着部材を高精度に位置決めした後、被接着部材と接着部材とをエネルギー線硬化型接着剤を用いて、被接着部材に接着部材を接合する方法において、エネルギー線硬化型接着剤の硬化収縮による体積収縮変化量分を補填する手段を備えたことを特徴とする被接着部材と接着部材の接合方法を提供することを目的とする。 Moreover, in the invention described in Patent Document 6, there is a problem that even if temporary fixing is first performed by condensing, since the curing shrinkage force at the time of main fixing by diverging light is large, the positional deviation becomes large. On the other hand, in the invention described in Patent Document 7, curing shrinkage other than thermal deformation is not taken into account, and the amount of cure shrinkage accumulates every time it cures, and eventually a large misalignment appears. Become. In the invention described in Patent Document 8, unreacted monomers and polymers are often present, and it is expected that the relative position between the member to be bonded and the bonded material cannot be maintained or cannot be maintained by a heat test or the like.
In the invention described in each of Patent Document 9 and Patent Document 10, if the amount of the energy ray curable adhesive is increased, the amount of curing shrinkage increases in proportion to this, and the positional deviation increases accordingly. It cannot be said that it is suitable for bonding forms that require a large amount of wire curable adhesive, and the addition of additives reduces the light transmittance and requires that the amount of energy applied for curing be increased. May occur.
The present invention has been made in consideration of the above-described circumstances, and suppresses the relative displacement between the bonded member and the adhesive member due to the curing shrinkage of the energy beam curable adhesive regardless of the bonding form, etc. It is an object of the present invention to provide a bonding method between a member to be bonded and an adhesive member that enables accurate positioning. Specifically, in the method of bonding an adhesive member to an adherend member using an energy ray curable adhesive after positioning the adherend member and the adhesive member with high accuracy, energy is used. It is an object of the present invention to provide a method for joining an adherend member and an adhesive member, characterized by comprising means for compensating for the amount of change in volume shrinkage caused by curing shrinkage of a linear curable adhesive.

上記の課題を解決するために、請求項１に記載の発明は、被接着部材と接着部材を高精度に位置決めした後、被接着部材と接着部材とをエネルギー線硬化型接着剤を用いて、被接着部材に接着部材を接合する方法において、該エネルギー線硬化型接着剤の硬化収縮による体積収縮変化量分の補填手段となる物質を混在させた被接着部材と接着部材の接合方法を特徴とする。
また、請求項２に記載の発明は、前記補填手段物質として、常温・常圧の気体を用いた請求項１記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項３に記載の発明は、前記気体の成分として、空気、窒素、あるいは不活性ガスを用いた請求項１又は２記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項４に記載の発明は、前記気体を予めエネルギー線硬化型接着剤に分散させ、被接着部材を接着部材の間に塗布した後、紫外線を含むエネルギー線を照射し硬化させる請求項１から３のいずれかに記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項５に記載の発明は、前記気体を外部から接着剤に供給する手段を備えた請求項１から３のいずれかに記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項６に記載の発明は、前記補填手段物質として、常温・常圧の液体を用いた請求項１記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項７に記載の発明は、前記液体として、前記接着剤と同成分を使用した請求項１または６記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項８に記載の発明は、前記補填手段物質として、常温・常圧の固体を用いた請求項１記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項９に記載の発明は、前記固体として、発泡剤を使用した請求項１または８記載の被接着部材と接着部材の接合方法を特徴とする。
また、請求項１０に記載の発明は、前記発泡剤の発泡倍率が、前記紫外線硬化樹脂の硬化収縮率と同じである請求項１、８、９のいずれか１項に記載の被接着部材と接着部材の接合方法を特徴とする。 In order to solve the above-described problem, the invention according to claim 1, after positioning the adherend member and the adhesive member with high accuracy, the adherend member and the adhesive member are bonded to each other using an energy beam curable adhesive. In the method for bonding an adhesive member to an adherend member, the bonding method of the adhesive member and the adhesive member mixed with a substance that serves as a compensation means for the amount of change in volume shrinkage due to curing shrinkage of the energy beam curable adhesive To do.
The invention described in claim 2 is characterized in that the member to be bonded and the adhesive member are bonded to each other according to claim 1 using a gas at normal temperature and pressure as the filling means substance.
Further, the invention described in claim 3 is characterized in that the member to be bonded and the bonding member according to claim 1 or 2 using air, nitrogen, or inert gas as the gas component.
Further, in the invention according to claim 4, the gas is preliminarily dispersed in an energy ray curable adhesive, and the adherend member is applied between the adhesive members, and then irradiated with energy rays including ultraviolet rays to be cured. It is characterized by the method for joining an adherend member and an adhesive member according to any one of 1 to 3.
The invention described in claim 5 is characterized in that the member to be bonded and the bonding member are bonded to each other according to any one of claims 1 to 3, comprising means for supplying the gas to the adhesive from the outside.
Further, the invention described in claim 6 is characterized in that the member to be bonded and the bonding member are bonded to each other according to claim 1 using a liquid at room temperature and pressure as the filling means substance.
The invention described in claim 7 is characterized in that a bonding member and an adhesive member are bonded to each other according to claim 1 or 6 using the same component as the adhesive as the liquid.
Further, the invention described in claim 8 is characterized in that the member to be bonded and the bonding member are bonded to each other according to claim 1 using a solid at normal temperature and pressure as the filling means substance.
The invention described in claim 9 is characterized in that the bonding member and the adhesive member are bonded to each other according to claim 1 or 8 using a foaming agent as the solid.
The invention according to claim 10 is characterized in that the foaming ratio of the foaming agent is the same as the curing shrinkage rate of the ultraviolet curable resin. It is characterized by a method for joining adhesive members.

本発明によれば、請求項１〜４に記載の被接着部材と接着部材を高精度に位置決めした後、接着剤を塗布硬化接着する方法において、硬化収縮に伴う接着剤の収縮領分を予め接着剤中に分散してある泡状気体が補填することにより、実質、接着剤部が体積収縮しないため被接着部材と接着部材の相対的な位置を保持することが可能となる。
前記補填手段として、気体（常温・常圧）を用いているため、比較的安価に硬化収縮による被接着部材と接着部材の相対的な位置を保持することが可能となる。
また、前記気体の成分として、空気、窒素、あるいは不活性ガスを用いているので、安全である。
更に、前記気体を予めエネルギー線硬化型接着剤に分散させているので、余計な装置が要らない。 According to the present invention, after the member to be bonded and the adhesive member according to any one of claims 1 to 4 are positioned with high accuracy, the shrinkage portion of the adhesive accompanying the curing shrinkage is previously bonded in the method of applying and curing the adhesive. By filling the foamed gas dispersed in the agent, the adhesive portion does not substantially shrink in volume, so that the relative positions of the member to be bonded and the adhesive member can be maintained.
Since gas (normal temperature / normal pressure) is used as the filling means, it is possible to hold the relative positions of the member to be bonded and the bonding member by curing shrinkage at a relatively low cost.
Further, since air, nitrogen, or an inert gas is used as the gas component, it is safe.
Furthermore, since the gas is previously dispersed in the energy beam curable adhesive, no extra device is required.

以下、図面を参照して、本発明の実施形態を詳細に説明する。
図１は本発明の一実施形態に係る接合方法の説明図であり、本発明では、被接着部材１と接着部材２を高精度に位置決めした後、被接着部材と接着部材とをエネルギー線硬化型接着剤３を用いて接合する方法において、該エネルギー線硬化型接着剤３の硬化収縮による体積収縮変化量分の補填手段となる物質４を混在させた構成が特徴的である。
また、補填手段物質４としては、常温・常圧の気体を用いてもよいし、気体の成分として、空気、窒素、あるいは不活性ガスを用いてもよい。また、気体を予めエネルギー線硬化型接着剤に分散させ、被接着部材を接着部材の間に塗布した後、紫外線を含むエネルギー線を照射し硬化させてもよい。
図１に基づき、請求項１〜４に対する実施例１を説明する。被接着部材１と接着部材２を高精度に位置決めした後、被接着部材と接着部材の間にエネルギー線硬化型接着剤３（以下、接着剤、と称する）を塗布する。該接着剤の中には数μｍの泡状窒素等の気体４（補填手段物質）が混入されている。窒素の他に、空気やアルゴン、キセノン等の不活性ガスでも良い。
ここでの被接着部材１は石英ガラス、接着部材はポリカーボネイト樹脂である。被接着部材１と接着部材２の材質に限定は無い。また、該接着剤３には、紫外線で硬化する変性アクリルを主成分とした紫外線硬化樹脂を用いている。特に、材料の限定は無いが、アクリル系紫外線硬化型接着剤は比較的安価である。次に、紫外線を照射すると、前記接着剤が硬化すると同時に、接着剤中に分散してある泡状窒素が膨脹し（Ａ部詳細）、硬化収縮分による体積収縮と変位分を補填する。従って、実質、接着剤部が体積収縮しないため被接着部材と接着部材の相対的な位置を保持することが可能である。
本実施例は、前記補填手段として、気体（常温・常圧）を用いているため、比較的安価に硬化収縮による被接着部材と接着部材の相対的な位置を保持することが可能である。
また、前記気体の成分として、空気、窒素、あるいは不活性ガスを用いているので、安全である。更に、前記気体を予めエネルギー線硬化型接着剤に分散させているので、余計な装置が要らない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory view of a bonding method according to an embodiment of the present invention. In the present invention, after the bonded member 1 and the bonding member 2 are positioned with high accuracy, the bonded member and the bonding member are cured with energy rays. The bonding method using the mold adhesive 3 is characterized by a configuration in which a substance 4 serving as a compensation means for the volume shrinkage change amount due to the curing shrinkage of the energy beam curable adhesive 3 is mixed.
Further, the filling means substance 4 may be a gas at normal temperature and pressure, and air, nitrogen, or an inert gas may be used as a gas component. Moreover, after gas is previously dispersed in the energy ray curable adhesive and the adherend member is applied between the adhesive members, energy rays including ultraviolet rays may be irradiated and cured.
A first embodiment corresponding to claims 1 to 4 will be described with reference to FIG. After positioning the adherend member 1 and the adhesive member 2 with high accuracy, an energy beam curable adhesive 3 (hereinafter referred to as an adhesive) is applied between the adherend member and the adhesive member. In the adhesive, a gas 4 (complementary substance) such as foam nitrogen of several μm is mixed. In addition to nitrogen, an inert gas such as air, argon, or xenon may be used.
Here, the adherend member 1 is quartz glass and the adhesive member is polycarbonate resin. There is no limitation on the material of the adherend member 1 and the adhesive member 2. The adhesive 3 is made of an ultraviolet curable resin whose main component is a modified acrylic that is cured by ultraviolet rays. Although there is no particular limitation on the material, acrylic ultraviolet curable adhesives are relatively inexpensive. Next, when the ultraviolet ray is irradiated, the adhesive is cured, and at the same time, the foamed nitrogen dispersed in the adhesive expands (detailed part A) to compensate for volume shrinkage and displacement due to the cure shrinkage. Accordingly, since the volume of the adhesive portion does not substantially shrink, it is possible to maintain the relative positions of the bonded member and the bonding member.
In this embodiment, since the gas (normal temperature / normal pressure) is used as the filling means, the relative positions of the member to be bonded and the bonding member by curing shrinkage can be held relatively inexpensively.
Further, since air, nitrogen, or an inert gas is used as the gas component, it is safe. Furthermore, since the gas is previously dispersed in the energy beam curable adhesive, no extra device is required.

次に、図２に基づき、請求項１〜４に対する実施例２を説明する。先ず始めに、光軸を調整しながら、位置調整用治具を移動させたり、傾けたりして、アクリル樹脂製レンズ６を固定されたガラス４０％含有ポリカーボネイト製の鏡筒７に対して位置調整を行う（図２（ａ）参照）。
次に、レンズ６と鏡筒７の間に、予め窒素の気泡が分散された紫外線硬化型接着剤３を塗布する。接着剤３には実施例１と同様のアクリル系紫外線硬化型接着剤を使用した。但し、粘度は１０，０００ｍＰａ・ｓ（２５℃）である。渦巻状に加工されたフラッシュランプ８（紫外線）を照射する（図２（ｂ）参照）。本実施例においては、紫外線にフラッシュ型のランプを用いたがこれに限るものではなく、一般的な高圧や低圧水銀ランプなどでも問題は無く、接着剤が確実に硬化すればよい。但し、ランプからの輻射熱が大きいと、前記鏡筒とレンズの熱容量ならびに熱膨張差から位置ずれを起こす可能性があるため、数十μｓｅｃと短時間で硬化可能な、フラッシュランプを使用した。
最後に、位置調整用治具を外して完成品が得られる（図３（ａ）参照）。本発明では、前記気泡が予め接着剤に均一に分散されているため、図３（ｂ）に示すように、硬化ムラに起因する該レンズに偏りが生じなく、位置決め作業が容易で、かつ位置決めの精度向上が図れる。
次に、図４に基づき、請求項５に対する実施例３を説明する。請求項５に係る発明は、気体を外部から接着剤３に供給する手段を備え被接着部材と接着部材の接合方法に関する。
被接着部材２としてＳＵＳ製の軸ピン９と、接着部材としてポリアセタール製の偏芯カム１０とをエネルギー線硬化型接着剤３で接着する例である。また、本実施例においては、気体４を外部から供給するための手段１１（エアーディスペンサー）を備えている。本実施例のように接着剤の量が不均一であっても、比較的接着材料が多いところ（＝硬化収縮量が大きいところ）に、気体を供給できるので、被接着部材と接着部材を所定の位置に高精度に位置決めすることが可能である。 Next, a second embodiment corresponding to claims 1 to 4 will be described with reference to FIG. First, while adjusting the optical axis, the position adjusting jig is moved or tilted to adjust the position with respect to the lens barrel 7 made of polycarbonate containing 40% glass to which the acrylic resin lens 6 is fixed. (See FIG. 2A).
Next, an ultraviolet curable adhesive 3 in which nitrogen bubbles are dispersed in advance is applied between the lens 6 and the lens barrel 7. As the adhesive 3, the same acrylic ultraviolet curable adhesive as in Example 1 was used. However, the viscosity is 10,000 mPa · s (25 ° C.). The flash lamp 8 (ultraviolet rays) processed into a spiral shape is irradiated (see FIG. 2B). In this embodiment, a flash-type lamp is used for ultraviolet rays, but the present invention is not limited to this, and there is no problem with a general high-pressure or low-pressure mercury lamp, and the adhesive only needs to be reliably cured. However, when the radiant heat from the lamp is large, there is a possibility of causing a position shift due to the heat capacity of the lens barrel and the lens and the difference in thermal expansion. Therefore, a flash lamp that can be cured in a few tens of microseconds was used.
Finally, the position adjustment jig is removed to obtain a finished product (see FIG. 3A). In the present invention, since the bubbles are uniformly dispersed in the adhesive in advance, as shown in FIG. 3B, the lens is not biased due to uneven curing, positioning is easy, and positioning is performed. Accuracy can be improved.
Next, a third embodiment corresponding to claim 5 will be described with reference to FIG. The invention according to claim 5 relates to a method for joining a member to be bonded and an adhesive member provided with means for supplying gas from the outside to the adhesive 3.
This is an example in which the shaft pin 9 made of SUS as the member to be bonded 2 and the eccentric cam 10 made of polyacetal as the bonding member are bonded with the energy ray curable adhesive 3. In this embodiment, a means 11 (air dispenser) for supplying the gas 4 from the outside is provided. Even if the amount of the adhesive is not uniform as in this embodiment, gas can be supplied to a place where there is a relatively large amount of adhesive material (= a place where the amount of curing shrinkage is large). It is possible to position at a high accuracy.

次に、図５に基づき、請求項６、７に対する実施例４を説明する。この実施例は、補填手段物質３として、常温・常圧の液体を用い、液体として接着剤と同成分を使用した点が特徴的である。すなわち、上型１２と下型１３の間に被接着部材１と接着部材２が固定されている。上型と下型はガラスからなっており、下型には前記硬化収縮の補填手段として、液体（常温・常圧）を接着剤部に供給する供給路が設けられている。また、上型１２を下型１３には温度を一定にするための温調回路（図示せず）が具備されている。上型上方部から高圧水銀ランプ８により紫外線が照射されると同時に、硬化収縮分を補うため、供給路１４から接着剤３が所定量注入される。
本実施例においては、高圧水銀ランプを用いたが、実施例２で使用したフラッシュランプでも何ら問題は無い。しかし、フラッシュランプを使用する場合は、硬化が数十μｓｅｃ〜数ｓｅｃで終了してしまうため、供給路からの接着剤供給に工夫（例えば、供給圧力を上げる、粘度を下げる、高速注入する等）が必要となる。本実施例においては、後から供給する液体として接着剤と同じ物を用いたが、その成分であるモノマーやオリゴマーだけでも問題は無い。接着のスピードに応じてモノマー、オリゴマーや開始剤の量を調整すればよい。実施例１〜３と比較して、硬化収縮分を同じ接着剤（液体）で補うことから、高温・湿度環境下においても被接着部材と接着部材間の相対距離を維持することが可能である（耐熱信頼性が高い）。 Next, a fourth embodiment corresponding to claims 6 and 7 will be described with reference to FIG. This embodiment is characterized in that a normal temperature / normal pressure liquid is used as the filling means substance 3, and the same component as the adhesive is used as the liquid. That is, the adherend member 1 and the adhesive member 2 are fixed between the upper die 12 and the lower die 13. The upper mold and the lower mold are made of glass, and the lower mold is provided with a supply path for supplying a liquid (normal temperature and normal pressure) to the adhesive portion as a means for compensating for the curing shrinkage. Further, the upper mold 12 and the lower mold 13 are provided with a temperature control circuit (not shown) for keeping the temperature constant. At the same time as the ultraviolet rays are irradiated from the upper part of the upper mold by the high pressure mercury lamp 8, a predetermined amount of the adhesive 3 is injected from the supply path 14 in order to compensate for the curing shrinkage.
In this embodiment, a high-pressure mercury lamp is used, but the flash lamp used in Embodiment 2 has no problem. However, when a flash lamp is used, curing is completed in several tens of microseconds to several seconds, so the adhesive supply from the supply path is devised (for example, increasing the supply pressure, decreasing the viscosity, injecting at high speed, etc.) )Is required. In this embodiment, the same liquid as the adhesive is used as the liquid to be supplied later, but there is no problem even with the monomer or oligomer as its component. What is necessary is just to adjust the quantity of a monomer, an oligomer, or an initiator according to the speed of adhesion | attachment. Compared with Examples 1 to 3, since the curing shrinkage is supplemented with the same adhesive (liquid), it is possible to maintain the relative distance between the adherend member and the adhesive member even in a high temperature / humidity environment. (High heat reliability).

次に、図６に基づき、請求項８〜１０に対する実施例５を説明する。請求項８に記載の発明は、補填手段物質３として常温・常圧の固体を用いたことを内容としており、請求項９に記載の発明は、固体として、発泡剤を使用したことを内容としており、請求項１０に記載の発明は、発泡剤の発泡倍率が、前記紫外線硬化樹脂の硬化収縮率と同じであることを内容としている。
この実施例では、硬化収縮を補填する手段４として固体（常温・常圧）を用いている。本実施例においては、該固体成分としてアゾジカルボンアミド（平均粒径６μｍ）の発泡剤１５を用いた。該発泡剤は、接着剤に予め分散してある。発泡剤の成分は、アゾジカルボンアミドに限るものではなく、一般的に市販されているジニトロソペンタメチレンテトラミン、ｐ−ｐ’−オキシビスベンゼンスルホニルヒドラジンやｐ−トルエンスルホニルヒドラジドなどでも何ら問題は無いが、アゾジカルボンアミドは有機発泡剤中、唯一の自己消火性のある、取り扱い上安全性の高い発泡剤で、発泡ガス量も多く、樹脂・ゴムどちらでも使用できるため有機発泡剤のなかで最も多く使用され比較的安価である。前記接着剤に紫外線を照射すると、接着剤の硬化に伴う発熱により、前記発泡剤が発泡し、接着剤の硬化収縮分を補填する。ひいては、被接着部材と接着部材の位置を高精度に保持することが可能である。
本実施例５は、実施例１〜３と比較して、高温・湿度環境下においても被接着部材と接着部材間の相対距離を維持することが可能である（耐熱信頼性が高い）。また、接着剤の硬化収縮率が変わったとしても、発泡倍率を比較的自由にコントロールできるため、実施例１〜５と比較に比べ、より被接着部材と接着部材の相対的な位置を高精度に保持することが可能である。 Next, a fifth embodiment corresponding to claims 8 to 10 will be described with reference to FIG. The invention described in claim 8 is that a solid at normal temperature and pressure is used as the filling means substance 3, and the invention described in claim 9 is that the foaming agent is used as the solid. The invention according to claim 10 is characterized in that the expansion ratio of the foaming agent is the same as the curing shrinkage rate of the ultraviolet curable resin.
In this embodiment, solid (normal temperature / normal pressure) is used as means 4 for compensating for curing shrinkage. In this example, azodicarbonamide (average particle size: 6 μm) foaming agent 15 was used as the solid component. The foaming agent is previously dispersed in the adhesive. The component of the blowing agent is not limited to azodicarbonamide, and there is no problem with dinitrosopentamethylenetetramine, pp′-oxybisbenzenesulfonylhydrazine, p-toluenesulfonylhydrazide, etc. that are generally commercially available. However, azodicarbonamide is the only self-extinguishing and highly safe foaming agent among organic foaming agents, has a large amount of foaming gas, and can be used with either resin or rubber. Many are used and relatively inexpensive. When the adhesive is irradiated with ultraviolet rays, the foaming agent foams due to the heat generated by the curing of the adhesive, and compensates for the shrinkage of curing of the adhesive. As a result, it is possible to hold | maintain the position of a to-be-adhered member and an adhesive member with high precision.
Compared with Examples 1 to 3, Example 5 can maintain the relative distance between the adherend and the adhesive member even under a high temperature and humidity environment (high heat reliability). In addition, even if the curing shrinkage rate of the adhesive changes, the expansion ratio can be controlled relatively freely, so that the relative positions of the bonded member and the bonding member are more accurate than in Examples 1 to 5. It is possible to hold it.

本発明の接着剤に気泡を混入した例の概略説明図。The schematic explanatory drawing of the example which mixed the bubble in the adhesive agent of this invention. 本発明の接着法でレンズと鏡筒を接着する例の説明図。Explanatory drawing of the example which adhere | attaches a lens and a lens-barrel with the adhesion | attachment method of this invention. 本発明の接着法でレンズと鏡筒を接着する例の説明図。Explanatory drawing of the example which adhere | attaches a lens and a lens-barrel with the adhesion | attachment method of this invention. 本発明の接着法の軸ピンと偏芯カムでの接着例の説明図。Explanatory drawing of the example of adhesion | attachment with the shaft pin and eccentric cam of the adhesion | attachment method of this invention. 本発明の接着法で上下の型の間での部材接着例の説明図。Explanatory drawing of the example of member adhesion between the upper and lower mold | types by the adhesion | attachment method of this invention. 本発明の接着法で発泡剤を使用した例の説明図。Explanatory drawing of the example which used the foaming agent by the adhesion method of this invention. 従来技術での接着の不具合を説明するための説明図。Explanatory drawing for demonstrating the malfunction of the adhesion | attachment in a prior art.

符号の説明Explanation of symbols

１被接着部材
２接着部材
３エネルギー線硬化型接着剤
４気体
５位置調整用治具
６レンズ
７鏡筒
８フラッシュ型紫外線ランプ、又は高圧水銀ランプ
９軸ピン
１０カム
１１エアーディスペンサー
１２上型
１３下型
１４供給路
１５発泡剤
DESCRIPTION OF SYMBOLS 1 Adhered member 2 Adhesive member 3 Energy beam hardening type adhesive 4 Gas 5 Jig for position adjustment 6 Lens 7 Lens barrel 8 Flash type ultraviolet lamp or high pressure mercury lamp 9 Shaft pin 10 Cam 11 Air dispenser 12 Upper mold 13 Lower Mold 14 Supply path 15 Foaming agent

Claims

被接着部材と接着部材を高精度に位置決めした後、エネルギー線硬化型接着剤を用いて、被接着部材に接着部材を接合する方法において、該エネルギー線硬化型接着剤の硬化収縮による体積収縮変化量分の補填手段となる物質を混在させたことを特徴とする被接着部材と接着部材の接合方法。 In a method of bonding an adhesive member to an adherend using an energy ray curable adhesive after positioning the adherend and the adhesive member with high accuracy, volume shrinkage change due to curing shrinkage of the energy ray curable adhesive A bonding method of an adherend member and an adhesive member, characterized in that a quantity of a substance serving as a compensation means is mixed.

前記補填手段物質として、常温・常圧の気体を用いたことを特徴とする請求項１記載の被接着部材と接着部材の接合方法。 The method for joining an adherend and an adhesive member according to claim 1, wherein a gas at normal temperature and pressure is used as the filling means substance.

前記気体の成分として、空気、窒素、あるいは不活性ガスを用いたことを特徴とする請求項１又は２記載の被接着部材と接着部材の接合方法。 3. The method for bonding an adherend member and an adhesive member according to claim 1, wherein air, nitrogen, or an inert gas is used as the gas component.

前記気体を予めエネルギー線硬化型接着剤に分散させ、被接着部材を接着部材の間に塗布した後、エネルギー線を照射し硬化させることを特徴とする請求項１から３のいずれかに記載の被接着部材と接着部材の接合方法。 The said gas is previously disperse | distributed to an energy-beam curable adhesive, and after apply | coating a to-be-adhered member between adhesive members, an energy ray is irradiated and it hardens | cures. A bonding method of an adherend member and an adhesive member.

前記気体を外部から接着剤に供給する手段を備えたことを特徴とする請求項１から３のいずれかに記載の被接着部材と接着部材の接合方法。 The method for joining an adherend member and an adhesive member according to any one of claims 1 to 3, further comprising means for supplying the gas from the outside to the adhesive.

前記補填手段物質として、常温・常圧の液体を用いたことを特徴とする請求項１記載の被接着部材と接着部材の接合方法。 2. The bonding method of an adherend member and an adhesive member according to claim 1, wherein a liquid at normal temperature and normal pressure is used as the filling means substance.

前記液体として、前記接着剤と同成分を使用したことを特徴とする請求項１または６記載の被接着部材と接着部材の接合方法。 The method of joining an adherend member and an adhesive member according to claim 1 or 6, wherein the same component as the adhesive is used as the liquid.

前記補填手段物質として、常温・常圧の固体を用いたことを特徴とする請求項１記載の被接着部材と接着部材の接合方法。 2. The method for joining an adherend member and an adhesive member according to claim 1, wherein a solid at normal temperature and pressure is used as the filling means substance.

前記固体として、発泡剤を使用したことを特徴とする請求項１または８記載の被接着部材と接着部材の接合方法。 The method for joining an adherend member and an adhesive member according to claim 1, wherein a foaming agent is used as the solid.

前記発泡剤の発泡倍率が、前記紫外線硬化樹脂の硬化収縮率と同じであることを特徴とした請求項１、８、９のいずれか１項に記載の被接着部材と接着部材の接合方法。
The method for joining an adherend member and an adhesive member according to any one of claims 1, 8, and 9, wherein a foaming ratio of the foaming agent is the same as a curing shrinkage rate of the ultraviolet curable resin.