JP3666283B2

JP3666283B2 - Fixing the optical axis

Info

Publication number: JP3666283B2
Application number: JP01710999A
Authority: JP
Inventors: 国法中村; 泰臣杉山; 喜万東; 敏範井上; 徳雄吉田
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1998-09-25
Filing date: 1999-01-26
Publication date: 2005-06-29
Anticipated expiration: 2019-01-26
Also published as: JP2000161959A

Description

【０００１】
【発明の属する技術分野】
本発明は、光源が内部に固定される光源筐体とこの光源筐体が内部に組み込まれる鏡筒とを、光源の光軸の延出角度を調整可能に固定する光軸の固定方法に関するものである。
【０００２】
【従来の技術】
従来、レーザービームをスリット光に変換して射出する光源、この光源が内部に固定される光源筐体およびこの光源筐体が内部に組み込まれる鏡筒により構成され、スリット光を所定用途に利用する墨出し器が種々使用され、また提案されている。このような墨出し器には、光源筐体と鏡筒とがこの鏡筒からの光源の光軸の延出角度を調整可能に互いに固定される構造になっているものがある。
【０００３】
図１０および図１１は、それぞれ光源筐体と鏡筒との従来の固定構造を示す断面図および側面図で、これらの図に示す例では、光源筐体２は、鏡筒３の側面に形成された孔３ａに挿入された上で、鏡筒３の側面の両サイドから各５本のねじ５によってねじ止め固定されている。そして、合計１０本の各ねじ５を締めたり緩めたりすることで、鏡筒３からの光源２の光軸ＯＡの延出角度が調整可能となっている。なお、両サイドの一方のねじと他方のねじは対向配置されている。
【０００４】
【発明が解決しようとする課題】
しかしながら、上図に示す従来の固定方法では、各５本のねじ５のうち、特に図１０に示す左右一列に並ぶ３本のねじ５の各先端が光源筐体２に対して垂直に当接し、ねじの進行方向の力が全て光源筐体２に加わるので、光源筐体２がねじ５の締付け具合で容易に歪んでしまう問題があった。
【０００５】
なお、合計１０本のねじ５の締め具合に応じて光軸ＯＡの延出角度を調整するのは困難であった。
【０００６】
本発明は、上記事情に鑑みてなされたものであり、光源筐体と鏡筒との固定の際に光源筐体を容易に歪まなくする光軸の固定方法を提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記課題を解決するための請求項１記載の発明は、光源の光軸が一の面から延出するように前記光源が内部に固定される光源筐体と、この光源筐体よりも大きい収納室を有し前記光軸が側面側から延出するように前記光源筐体が前記収納室に組み込まれる鏡筒とを、この鏡筒からの前記光軸の延出角度を調整可能に固定する光軸の固定方法であって、前記光源筐体を鉛直および水平方向に移動させて前記光源筐体の鉛直および水平方向の位置調整を行う第１微動ステージと、前記光源筐体を水平面内で回動させて前記光源の光軸に対するあおり方向の角度調整を行う第２微動ステージと、前記光源筐体を直進移動させて前記鏡筒内部の収納室に組み込む直動ステージとを備える調整装置を用いて、前記第１および第２微動ステージにより前記光源筐体の位置を所定の基準位置に調整し、次いで前記直動ステージにより前記光源筐体を前記鏡筒内部の収納室に組み込み、先端部がテーパー状に成形された少なくとも３個の固定部材のそれら先端部のテーパー部分で前記光源筐体の一の面から伸びる側面を挟持するように、前記固定部材の各々を前記鏡筒の側面における少なくとも３つの孔に外部から内部に向けて挿入し、前記光源筐体が前記収納室に組み込まれて生じる隙間に接着剤を充填する各ステップを備えるものである。
【００１０】
この方法では、少なくとも３個の固定部材が、これらの先端部のテーパー部分で光源筐体の一の面から伸びる側面を挟持するように、鏡筒の側面外部から内部に向けて挿入されるので、先端による挟持に比べて、光源筐体と鏡筒との固定の際に光源筐体を容易に歪まなくすることが可能になる。また、光軸の固定に対する作業の簡易化および作業の高効率化を図ることができる。
【００１１】
なお、前記固定部材には前記鏡筒の外部から前記隙間に前記接着剤を注入するための接着剤注入路が形成され、前記接着剤を充填するステップでは、前記接着剤注入路を介して前記隙間に前記接着剤を充填する方法でもよい（請求項２）。この方法によれば、隙間に接着剤を外部から容易に充填することが可能になる。
【００１２】
また、前記固定部材は先端部が円錐状に成形されたねじであり、前記固定部材の各々を前記鏡筒の側面外部から内部に向けて挿入するステップでは、前記固定部材の各々を前記鏡筒の側面外部から内部に向けてねじ込んで挿入する方法でもよい（請求項３）。この方法によれば、鏡筒からの光源の光軸の延出角度が固定部材を締付けたり緩めたりすることにより調整可能となる。
【００１３】
また、前記固定部材は先端部が角錐状に成形されたねじであり、前記固定部材の各々を前記鏡筒の側面外部から内部に向けて挿入するステップでは、前記固定部材の各々を、別のねじをねじ込みながらその別のねじの先端で前記鏡筒の側面外部から内部に向けて押入する方法でもよい（請求項４）。この方法によれば、光源筐体と鏡筒との固定の際に光源筐体を容易に歪まなくすることが可能になる。
【００１４】
また、前記固定部材および光源筐体の双方は導電性の表面を有し、前記固定部材の各々を前記鏡筒の側面外部から内部に向けて挿入するステップでは、前記固定部材および光源筐体が接触したか否かをそれぞれ電流が流れるか否かに応じて検出する接触検出手段を前記固定部材および光源筐体の各表面に電気的に接続し、前記接触検出手段によって前記固定部材および光源筐体の接触が検出されるまで前記固定部材の各々を前記鏡筒の側面外部から内部に向けて挿入する方法でもよい（請求項５）。この方法によれば、固定部材に対する挿入度合い（押圧）の管理が可能になり、光源筐体と鏡筒との高精度な固定が可能になる。
【００１５】
また、前記鏡筒には前記隙間に至る紫外線照射用の孔が形成され、前記接着剤を充填するステップでは、前記隙間に紫外線の照射により硬化する接着剤を充填し、前記紫外線照射用の孔を介して前記接着剤に紫外線を照射する方法でもよい（請求項６）。この方法によれば、接着剤による光源筐体と鏡筒との迅速な固定が可能になり、固定作業の高効率化が可能になる。
【００１６】
また、前記固定部材は通電により発熱する発熱体であり、前記接着剤を充填するステップでは、前記隙間に熱硬化性の接着剤を充填し、前記固定部材に通電を行う方法でもよい（請求項７）。この方法によれば、接着剤による光源筐体と鏡筒との迅速な固定が可能になり、固定作業の高効率化が可能になる。
【００１８】
【発明の実施の形態】
以下、本発明の光軸の固定方法に係る実施形態を本発明の墨出し器に係る実施形態とともに図面を用いて説明する。
【００１９】
図１は本発明の第１実施形態に係る墨出し器の概略構成図、図２は図１に示すテーパーピンによる光源筐体と鏡筒との固定の様子を示す断面図で、以下これらの図を用いて第１実施形態について説明する。
【００２０】
本墨出し器は、レーザービームを射出するレーザー１１１およびこのレーザー１１１の前方に配置されレーザービームをスリット光（線状ビーム）に変換するロッドレンズ１１２により構成される光源１１と、スリット光が長方形状の一の面（図１では正面）から射出するように光源１１が内部に固定される光源筐体１２と、この光源筐体１２よりも大きい長方形状の孔（収納室）１３１および後述するテーパーピン１５挿入用の３個の孔１３２を側面に有し、スリット光が側面側から射出するように光源筐体１２が孔１３１に組み込まれる鏡筒１３と、この鏡筒１３の外径よりも大きい内径を有し鏡筒１３の一端（図１では上端）を２個の軸１４１を介して支持する内リング１４２、この内リング１４２の外径よりも大きい内径を有し内リング１４２をこの外面で２個の軸１４３を介して支持する外リング１４４およびこの外リング１４４の下方側面に取り付けられる三脚１４５により構成されるいわゆるジンバル構造の支持機構１４とを備えているほか、従来とは異なる３本のテーパーピン（固定部材）１５を備え、光源筐体１２が孔１３１に組み込まれて生じる隙間には接着剤１６が充填されている。
【００２１】
上記３本のテーパーピン１５は、光源筐体１２と鏡筒１３とをこの鏡筒１３からの光源１１の光軸の延出角度を調整可能に固定するもので、先端部がいずれもテーパー状に成形され、これら先端部のテーパー部分で光源筐体１２の一の面から伸びる側面を挟持するように（互いに対面する方向から押し挟むように）、鏡筒１３の側面外部から内部に向かう３個の孔１３２にそれぞれ挿入される。
【００２２】
次に、上記３本のテーパーピン１５による光源筐体１２と鏡筒１３との固定手順について説明する。ただし、説明の便宜上、必要に応じて、図１に示す左側、右正面側および右背面側のテーパーピンの符号をそれぞれ１５１、１５２および１５３として説明する。
【００２３】
まず、鏡筒１３の孔１３１に光源筐体１２を組み込む。
【００２４】
次いで、３本のテーパーピン１５を、これら先端部のテーパー部分が光源筐体１２の一の面から伸びる側面を挟持するように、それぞれ鏡筒１３の３個の孔１３２に挿入して、光源筐体１２と鏡筒１３とを固定する。ここで、この固定状態および光源１１の光軸の延出角度が挿入固定された各テーパーピンの挿入度合いで決まるので、各テーパーピンにより、この挿入度合いで上記延出角度を調整可能に光源筐体１２と鏡筒１３とを固定することができる。これにより、後述の調整治具により調整された状態に合わせて各テーパーピンを挿入すれば、その調整された状態で光源筐体１２と鏡筒１３とを固定することができる。なお、仮固定の状態から各テーパーピンの挿入度合いそのものを調整して上記延出角度を所望の角度に調整するようにしてもよい。
【００２５】
次いで、光源筐体１２が孔１３１に組み込まれて生じる隙間に接着剤１６を充填する。これにより、光源筐体１２と鏡筒１３とがしっかり固定される。
【００２６】
以上、第１実施形態によれば、３本のテーパーピン１５が、これらの先端部のテーパー部分で光源筐体１２の一の面から伸びる側面を挟持するように、鏡筒１３の３個の孔１３２にそれぞれ挿入されるので、先端による挟持に比べて、光源筐体１２と鏡筒１３との固定の際に光源筐体１２を容易に歪まなくすることが可能になる。これにより、歪みのない高精度な固定が可能になる。
【００２７】
また、光源筐体１２と鏡筒１３との固定に使用されるテーパーピン１５が３本であり、これら３本のテーパーピン１５の挿入度合い応じた光源筐体１２の傾きの変化が理解容易であるとともに調整個所が少ないので、鏡筒１３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。これにより、固定作業の高効率化が可能になる。
【００２８】
なお、第１実施形態では、３本のテーパーピン１５が使用される構成になっているが、これに限らず、４〜９本でも図１０および図１１に示す墨出し器の場合よりも調整個所が少なくて済むので、鏡筒１３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。
【００２９】
また、接着剤１６の隙間への充填については、例えば鏡筒１３に接着剤１６の注入路としての孔を形成するようにすればよく、要するに、隙間への接着剤１６の注入路が設けられる構造にすればよい。また、このような構造は、次の第２実施形態を除く以下の実施形態についても適用可能である。
【００３０】
さらに、第１実施形態では、鏡筒１３の内部には鉛直方向のスリット光を射出する光源筐体１２が組み込まれる構造になっているが、これに限らず、種々の方向のスリット光を射出する複数の光源筐体が組み込まれる構造でもよい。また、このような構造は以下の実施形態についても適用可能である。
【００３１】
図３は本発明の第２実施形態に係る墨出し器の概略構成図で、以下この図を用いて第２実施形態について説明する。
【００３２】
本墨出し器は、第１実施形態と同様に、光源１１および支持機構１４を備え、後述の隙間に接着剤１６が充填されているほか、第１実施形態とは構造が異なるものとして、スリット光が円状の一の面から射出するように光源１１が内部に固定される光源筐体２２と、この光源筐体２２よりも大きい円状の孔（収納室）２３１および後述するテーパーピン２５挿入用の３個の孔１３２を側面に有し、スリット光が側面側から射出するように光源筐体２２が孔２３１に組み込まれる鏡筒２３と、３本のテーパーピン（固定部材）２５とを備えている。なお、光源筐体２２の一の面および鏡筒２３の孔２３１はそれぞれ図２に示す光源筐体１２の一の面および鏡筒１３の孔１３１と同様の形状でもよいのはいうまでもなく、これは後述の図４〜図９についても同様である。
【００３３】
これら３本のテーパーピン２５は、光源筐体２２と鏡筒２３とをこの鏡筒２３からの光源１１の光軸の延出角度を調整可能に固定するもので、先端部がいずれもテーパー状に成形され、これら先端部のテーパー部分で光源筐体２２の一の面から伸びる側面を挟持するように、鏡筒２３の側面外部から内部に向かう３個の孔１３２にそれぞれ挿入されている。また、各テーパーピン２５には、光源筐体２２が孔２３１に組み込まれて生じる隙間に外部から接着剤１６を注入するための孔（接着剤注入路）２５１が形成されている。
【００３４】
次に、上記３本のテーパーピン２５による光源筐体２２と鏡筒２３との固定手順について概説すると、まず、鏡筒２３の孔２３１に光源筐体２２を組み込む。
【００３５】
次いで、３本のテーパーピン２５を、これら先端部のテーパー部分が光源筐体２２の一の面から伸びる側面を挟持するように、それぞれ鏡筒２３の３個の孔１３２に挿入する。ここまでは第１実施形態と同様である。
【００３６】
次いで、光源筐体２２が孔２３１に組み込まれて生じる隙間に各テーパーピン２５の孔２５１を介して接着剤１６を充填する。これにより、光源筐体１２と鏡筒１３とがしっかり固定される。
【００３７】
以上、第２実施形態によれば、光源筐体２２と鏡筒２３との固定の際に光源筐体２２を容易に歪まなくすることが可能になるとともに、鏡筒２３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。
【００３８】
また、上記隙間への接着剤１６充填用の孔などを鏡筒２３に設けることなく、隙間に接着剤１６を外部から容易に充填することが可能になる。また、接着剤による固定の簡易化を図ることができる。
【００３９】
なお、第２実施形態では、テーパーピン２５に対して接着剤注入路として孔が形成される構造になっているが、これに限らず、溝などが形成される構造でもよい。
【００４０】
図４は本発明の第３実施形態に係る墨出し器の概略構成図で、以下この図を用いて第３実施形態について説明すると、本墨出し器は、第２実施形態と同様に、光源１１、光源筐体２２および支持機構１４を備え、後述の隙間に接着剤１６が充填されているほか、第２実施形態とは構造が異なるものとして、光源筐体２２よりも大きい円状の孔２３１および後述するテーパーピン３５用の３個のねじ孔（以下単に孔）３３２を側面に有し、スリット光が側面側から射出するように光源筐体２２が孔２３１に組み込まれる鏡筒３３と、３本のテーパーピン（固定部材）３５とを備えている。
【００４１】
これら３本のテーパーピン３５は、光源筐体２２と鏡筒３３とをこの鏡筒３３からの光源１１の光軸の延出角度を調整可能に固定するねじで、先端部がいずれも円錐状（図４では円錐台形）に成形され、これら先端部のテーパー部分で光源筐体２２の一の面から伸びる側面を挟持するように、鏡筒３３の側面外部から内部に向かう３個の孔３３２にそれぞれねじ込まれて挿入されている。
【００４２】
次に、上記３本のテーパーピン３５による光源筐体２２と鏡筒３３との固定手順について説明すると、まず、鏡筒３３の孔２３１に光源筐体２２を組み込む。
【００４３】
次いで、３本のテーパーピン３５を、これら先端部のテーパー部分が光源筐体２２の一の面から伸びる側面を挟持するように、それぞれ鏡筒３３の３個の孔３３２にねじ込んで挿入する。
【００４４】
次いで、光源筐体２２が孔２３１に組み込まれて生じる隙間に接着剤１６を充填する。これにより、光源筐体２２と鏡筒３３とがしっかり固定される。
【００４５】
以上、第３実施形態によれば、光源筐体２２と鏡筒３３との固定の際に光源筐体２２を容易に歪まなくすることが可能になるとともに、鏡筒３３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。
【００４６】
また、テーパーピン３５がねじであるので、鏡筒３３からの光源１１の光軸の延出角度がテーパーピン３５を締付けたり緩めたりすることにより調整可能となる。
【００４７】
図５は本発明の第４実施形態に係る墨出し器の概略構成図で、以下この図を用いて第４実施形態について説明すると、本墨出し器は、第３実施形態と同様に、光源１１、光源筐体２２、鏡筒３３および支持機構１４を備え、光源筐体２２が孔２３１に組み込まれて生じる隙間には接着剤１６が充填されているほか、第３実施形態とは構造が異なるものとして、３本のテーパーピン（固定部材）４５を備えている。
【００４８】
これら３本のテーパーピン４５は、光源筐体２２と鏡筒３３とをこの鏡筒３３からの光源１１の光軸の延出角度を調整可能に固定するねじで、先端部（図５では先端部を含む全体）がいずれも角錐状（くさび形状）に成形され、これら先端部のテーパー部分で光源筐体２２の一の面から伸びる側面を挟持するように、鏡筒３３の側面外部から内部に向かう３個の孔３３２にそれぞれ押入されている。
【００４９】
次に、上記３本のテーパーピン４５による光源筐体２２と鏡筒３３との固定手順について説明すると、まず、鏡筒３３の孔２３１に光源筐体２２を組み込む。
【００５０】
次いで、３本のテーパーピン４５を鏡筒３３の３個の孔３３２にそれぞれ押入し、さらに別のねじ４６をねじ込むことにより３本のテーパーピン４５をより深く押入して、各テーパーピン４５の先端部（図５では先端部を含む全体）のテーパー部分で光源筐体２２の一の面から伸びる側面を挟持させる。なお、各テーパーピン４５は、鏡筒３３の孔２３１への光源筐体２２の組込み前に孔３３２に仮押入される手順でもよい。
【００５１】
次いで、光源筐体２２が孔２３１に組み込まれて生じる隙間に接着剤１６を充填する。これにより、光源筐体２２と鏡筒３３とがしっかり固定される。
【００５２】
以上、第４実施形態によれば、光源筐体２２と鏡筒３３との固定の際に光源筐体２２を容易に歪まなくすることが可能になるとともに、鏡筒３３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。
【００５３】
図６は本発明の第５実施形態に係る墨出し器の概略構成図で、以下この図を用いて第５実施形態について説明すると、本墨出し器は、第３実施形態と同様に、光源１１、鏡筒３３および支持機構１４を備え、後述の隙間には接着剤１６が充填されているほか、スリット光が円状の一の面から射出するように光源１１が内部に固定され、導電性の表面を有する光源筐体５２と、３本のテーパーピン（固定部材）５５とを備えている。
【００５４】
これら３本のテーパーピン５５は、光源筐体５２と鏡筒３３とをこの鏡筒３３からの光源１１の光軸の延出角度を調整可能に固定するねじで、先端部がいずれもテーパー状に成形され、これら先端部のテーパー部分で光源筐体５２の一の面から伸びる側面を挟持するように、鏡筒３３の側面外部から内部に向かう３個の孔３３２にそれぞれねじ込まれて挿入されている。また、各テーパーピン５５は導電性の表面を有している。
【００５５】
ここで、孔２３１に組み込まれた光源筐体５２の一部表面が図１１と同様に露出する構成になっている。これにより、鏡筒３３の外部から各テーパーピン５５と光源筐体５２とを電気的に接続させることが可能となる。
【００５６】
次に、上記３本のテーパーピン５５による光源筐体５２と鏡筒３３との固定手順について説明すると、まず、鏡筒３３の孔２３１に光源筐体２２を組み込む。
【００５７】
次いで、各テーパーピン５５および光源筐体５２の表面に対して、テーパーピン５５および光源筐体５２が接触したか否かをそれぞれ電流が流れるか否かに応じて検出する検流計やテスタなどの検知器（接触検出手段）５７を電気的に接続する。
【００５８】
次いで、３本のテーパーピン５５を、これら先端部のテーパー部分が光源筐体５２の一の面から伸びる側面を挟持するように、検知器５７によってテーパーピン５５および光源筐体５２の接触が検出されるまで鏡筒３３の３個の孔３３２にそれぞれねじ込んで挿入する。
【００５９】
次いで、光源筐体５２が孔２３１に組み込まれて生じる隙間に接着剤１６を充填する。これにより、光源筐体５２と鏡筒３３とがしっかり固定される。
【００６０】
以上、第５実施形態によれば、光源筐体５２と鏡筒３３との固定の際に光源筐体５２を容易に歪まなくすることが可能になるとともに、鏡筒３３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。
【００６１】
また、テーパーピン５５に対する挿入度合い（押圧）の管理が可能になり、光源筐体５２と鏡筒３３との高精度な固定が可能になる。
【００６２】
さらに、鏡筒３３の孔２３１の所定位置に光源筐体５２を組み込んだ状態で、光源筐体５２と鏡筒３３とを固定することが可能になる。
【００６３】
図７は本発明の第６実施形態に係る墨出し器の概略構成図で、以下この図を用いて第６実施形態について説明すると、本墨出し器は、光源１１、支持機構１４およびテーパーピン１５を第１実施形態と同様に備え、第１実施形態とは相違する点として、スリット光が円状の一の面から射出するように光源１１が内部に固定される光源筐体２２と、この光源筐体２２よりも大きい円状の孔２３１、テーパーピン１５挿入用の３個の孔１３２、および複数の紫外線照射用の孔６３３を側面に有し、スリット光が側面側から射出するように光源筐体２２が孔２３１に組み込まれる鏡筒６３とを備え、光源筐体２２が孔２３１に組み込まれて生じる隙間には紫外線の照射により硬化する接着剤６６が充填されている。
【００６４】
次に、上記３本のテーパーピン１５による光源筐体２２と鏡筒６３との固定手順について概説すると、まず、鏡筒６３の孔２３１に光源筐体２２を組み込む。
【００６５】
次いで、３本のテーパーピン１５を、これら先端部のテーパー部分が光源筐体２２の一の面から伸びる側面を挟持するように、それぞれ鏡筒２３の３個の孔１３２に挿入する。
【００６６】
次いで、光源筐体２２が孔２３１に組み込まれて生じる隙間に接着剤６６を充填する。ここまでは第１実施形態と同様である。
【００６７】
次いで、複数の孔６３３を介してＵＶ光源６８からの紫外線を充填した接着剤６６に照射する。これにより、接着剤６６が硬化して光源筐体２２と鏡筒６３とがしっかりと素早く固定される。
【００６８】
以上、第６実施形態によれば、光源筐体２２と鏡筒６３との固定の際に光源筐体２２を容易に歪まなくすることが可能になるとともに、鏡筒６３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。また、接着剤６６による光源筐体２２と鏡筒６３との迅速な固定が可能になり、固定作業の高効率化が可能になる。
【００６９】
図８は本発明の第７実施形態に係る墨出し器の概略構成図で、以下この図を用いて第７実施形態について説明すると、本墨出し器は、光源１１、鏡筒２３および支持機構１４を第２実施形態と同様に備えているほか、第２実施形態とは相違する点として、スリット光が円状の一の面から射出するように光源１１が内部に固定される導電性の光源筐体７２と、３本のテーパーピン（固定部材）７５とを備え、光源筐体２２が孔２３１に組み込まれて生じる隙間には熱硬化性の接着剤７６が充填されている。
【００７０】
これら３本のテーパーピン７５は、光源筐体２２と鏡筒２３とをこの鏡筒２３からの光源１１の光軸の延出角度を調整可能に固定するとともに通電により発熱する発熱体であり、先端部がいずれもテーパー状に成形され、これら先端部のテーパー部分で光源筐体２２の一の面から伸びる側面を挟持するように、鏡筒２３の側面外部から内部に向かう３個の孔１３２にそれぞれ挿入されている。
【００７１】
次に、上記３本のテーパーピン７５による光源筐体２２と鏡筒２３との固定手順について概説すると、まず、鏡筒２３の孔２３１に光源筐体２２を組み込む。
【００７２】
次いで、３本のテーパーピン７５を、これら先端部のテーパー部分が光源筐体２２の一の面から伸びる側面を挟持するように、それぞれ鏡筒２３の３個の孔１３２に挿入する。
【００７３】
次いで、光源筐体２２が孔２３１に組み込まれて生じる隙間に接着剤７６を充填する。この後、各テーパーピン７５間に電源７９を接続して通電を行う。これにより、接着剤７６が硬化して光源筐体２２と鏡筒２３とがしっかりと素早く固定される。
【００７４】
以上、第７実施形態によれば、光源筐体２２と鏡筒２３との固定の際に光源筐体２２を容易に歪まなくすることが可能になるとともに、鏡筒２３からの光源１１の光軸の延出角度を調整容易にすることが可能となる。また、接着剤７６による光源筐体２２と鏡筒２３との迅速な固定が可能になり、固定作業の高効率化が可能になる。
【００７５】
図９は本発明の第８実施形態に係る光軸の固定方法の説明図で、以下この図を用いて光軸の固定方法について説明する。ただし、光軸の固定、すなわち上記第１〜第７実施形態のいずれかに対応する光源筐体８２と、この光源筐体８２よりも大きい孔（収納室）８３１およびテーパーピン８５挿入用の３個の孔８３２を複数組み側面に有し、スリット光が側面側から射出するように複数の光源筐体８２が各孔８３１に組み込まれる鏡筒８３との固定に対して、上記第１〜第７実施形態のいずれかに対応するテーパーピン８５と、以下の調整治具（調整装置）８０とを使用する。
【００７６】
調整治具８０は、水平面内で鏡筒８３をこの軸回りに回動可能に支持するθテーブル８０１と、光源筐体８２を直進移動させて鏡筒８３内部に組み込む直動ステージ８０２と、光源筐体８２を鉛直および水平方向に移動させて光源筐体８２の鉛直および水平方向の位置調整を行う第１微動ステージ８０３と、光源筐体８２を水平面内で回動させて光源１１の光軸に対するあおり方向の角度調整を行う第２微動ステージ８０４とを備えている。
【００７７】
このように構成された調整治具８０を用いて、θテーブル８０１の中央に鏡筒８３を嵌入させた上で、鏡筒８３の各孔８３１に対して以下の処理を順次繰り返し行う。
【００７８】
まず、θテーブル８０１を駆動させて、光源筐体８２を組み込むべき孔８３１の軸を直動ステージ８０２の直進方向と一致させる。
【００７９】
次いで、第１および第２微動ステージ８０３，８０４を駆動させて、光源筐体８２の位置を所定の基準位置に調整し、この後、直動ステージ８０２を駆動させて、光源筐体８２を鏡筒８３の孔８３１に組み込む。
【００８０】
次いで、３本のテーパーピン８５を、これら先端部のテーパー部分が光源筐体８２の一の面から伸びる側面を挟持するように、それぞれ鏡筒８３の対応する３個の孔８３２に挿入する。この後、光源筐体８２が孔８３１に組み込まれて生じる隙間に接着剤を充填する。
【００８１】
以上、第８実施形態によれば、光軸の固定に対する作業の簡易化および作業の高効率化を図ることができる。
【００８２】
なお、第８実施形態では、光源筐体８２は、射出角度の調整後に鏡筒８３内部に組み込まれる手順になっているが、これに限らず、射出角度の調整前に鏡筒８３内部に組み込まれる手順でもよい。
【００８３】
【発明の効果】
以上のことから明らかなように、請求項１、４記載の発明によれば、光源筐体と鏡筒との固定の際に光源筐体を容易に歪まなくすることが可能になる。
【００８４】
請求項２記載の発明によれば、隙間に接着剤を外部から容易に充填することが可能になる。
【００８５】
請求項３記載の発明によれば、鏡筒からの光源の光軸の延出角度が固定部材を締付けたり緩めたりすることにより調整可能となる。
【００８６】
請求項５記載の発明によれば、固定部材に対する挿入度合い（押圧）の管理が可能になり、光源筐体と鏡筒との高精度な固定が可能になる。
【００８７】
請求項６記載の発明によれば、接着剤による光源筐体と鏡筒との迅速な固定が可能になり、固定作業の高効率化が可能になる。
【００８８】
請求項７記載の発明によれば、接着剤による光源筐体と鏡筒との迅速な固定が可能になり、固定作業の高効率化が可能になる。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る墨出し器の概略構成図である。
【図２】図１に示すテーパーピンによる光源筐体と鏡筒との固定の様子を示す断面図である。
【図３】本発明の第２実施形態に係る墨出し器の概略構成図である。
【図４】本発明の第３実施形態に係る墨出し器の概略構成図である。
【図５】本発明の第４実施形態に係る墨出し器の概略構成図である。
【図６】本発明の第５実施形態に係る墨出し器の概略構成図である。
【図７】本発明の第６実施形態に係る墨出し器の概略構成図である。
【図８】本発明の第７実施形態に係る墨出し器の概略構成図である。
【図９】本発明の第８実施形態に係る光軸の固定方法の説明図である。
【図１０】光源筐体と鏡筒との従来の固定構造を示す断面図である。
【図１１】光源筐体と鏡筒との従来の固定構造を示す側面図である。
【符号の説明】
１１光源
１２，２２，５２，８２光源筐体
１３，２３，３３，６３，８３鏡筒
１４支持機構
１５，２５，３５，４５，５５，７５，８５テーパーピン
１６，６６，７６接着剤[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a method for fixing an optical axis, in which a light source casing in which a light source is fixed and a lens barrel in which the light source casing is incorporated are fixed so that an extension angle of the optical axis of the light source can be adjusted.To the lawIt is related.
[0002]
[Prior art]
Conventionally, a light source that converts a laser beam into slit light and emits the light, a light source housing in which the light source is fixed, and a lens barrel in which the light source housing is incorporated, and uses the slit light for a predetermined application. Various inking machines have been used and proposed. Some of the ink marking devices have a structure in which a light source casing and a lens barrel are fixed to each other so that the extension angle of the optical axis of the light source from the lens barrel can be adjusted.
[0003]
10 and 11 are a sectional view and a side view, respectively, showing a conventional fixing structure of the light source casing and the lens barrel. In the examples shown in these drawings, the light source casing 2 is formed on the side surface of the lens barrel 3. After being inserted into the formed hole 3a, it is screwed and fixed by five screws 5 from both sides of the side surface of the lens barrel 3. The extension angle of the optical axis OA of the light source 2 from the lens barrel 3 can be adjusted by tightening or loosening a total of 10 screws 5. Note that one screw and the other screw on both sides are arranged to face each other.
[0004]
[Problems to be solved by the invention]
However, in the conventional fixing method shown in the upper diagram, among the five screws 5, the tips of the three screws 5 arranged in a line on the left and right shown in FIG. Since all the forces in the traveling direction of the screws are applied to the light source casing 2, there is a problem that the light source casing 2 is easily distorted due to the tightening condition of the screws 5.
[0005]
In addition, it was difficult to adjust the extension angle of the optical axis OA according to the tightening degree of the ten screws 5 in total.
[0006]
  The present invention has been made in view of the above circumstances, and is a method of fixing an optical axis that does not easily distort the light source case when the light source case and the lens barrel are fixed.The lawThe purpose is to provide.
[0009]
[Means for Solving the Problems]
  To solve the above problemsClaim1The described invention includes a light source housing in which the light source is fixed so that an optical axis of the light source extends from one surface, and a storage chamber larger than the light source housing, and the optical axis is on a side surface side. An optical axis fixing method for fixing an optical axis extending from the lens barrel so that the extension angle of the optical axis from the lens barrel is adjustable.A first fine movement stage that moves the light source casing in the vertical and horizontal directions to adjust the position of the light source casing in the vertical and horizontal directions; and the optical axis of the light source by rotating the light source casing in a horizontal plane. Using the adjusting device including a second fine movement stage for adjusting the angle in the tilt direction with respect to the vertical direction, and a linear movement stage for moving the light source casing straightly and incorporating it in the storage chamber inside the lens barrel. Adjust the position of the light source casing to a predetermined reference position by a fine movement stage, and then incorporate the light source casing into a storage chamber inside the lens barrel by the linear movement stage,Each of the fixing members is attached to the lens barrel so that a side surface extending from one surface of the light source casing is sandwiched between the tapered portions of the tip portions of the at least three fixing members having tip portions tapered. sideIn at least three holes inFrom outside to insideInAnd inserting each of the light source casings into the storage chamber and filling the gap with the adhesive.
[0010]
  In this method, at least three fixing members are inserted from the outside of the side surface of the lens barrel so that the side surface extending from one surface of the light source housing is sandwiched between the tapered portions of the tip portions.InTherefore, it is possible to easily prevent the light source casing from being distorted when the light source casing and the lens barrel are fixed, compared to the case where the tip is clamped.In addition, the work for fixing the optical axis can be simplified and the work efficiency can be improved.
[0011]
  The fixing member is formed with an adhesive injection path for injecting the adhesive into the gap from the outside of the lens barrel. In the step of filling the adhesive, the adhesive member is inserted through the adhesive injection path. It may be a method of filling the gap with the adhesive (claims)2). According to this method, the gap can be easily filled with an adhesive from the outside.
[0012]
  Further, the fixing member is a screw having a tip formed in a conical shape, and each of the fixing members is connected from the outside of the side surface of the lens barrel to the inside.InIn the step of inserting toward the inside, each of the fixing members is moved from the outside of the side surface of the lens barrel to the inside.InIt may be a method of screwing in and inserting (claims)3). According to this method, the extension angle of the optical axis of the light source from the lens barrel can be adjusted by tightening or loosening the fixing member.
[0013]
  In addition, the fixing member is a screw having a tip portion formed in a pyramid shape, and each of the fixing members is connected from the outside of the side surface of the lens barrel.InIn the step of inserting toward the inside, each of the fixing members is internally inserted from the outside of the side surface of the lens barrel at the tip of the other screw while screwing another screw.InIt may be a method of pushing in (claims)4). According to this method, the light source casing can be easily prevented from being distorted when the light source casing and the lens barrel are fixed.
[0014]
  In addition, both the fixing member and the light source housing have conductive surfaces, and each of the fixing members is connected from the outside of the side surface of the lens barrel to the inside.InIn the step of inserting the contact member, a contact detecting means for detecting whether or not the fixing member and the light source casing are in contact with each other according to whether or not current flows is electrically connected to each surface of the fixing member and the light source casing. Each of the fixing members from the outside of the side surface of the lens barrel until the contact detecting means detects contact between the fixing member and the light source casing.InIt may be a method of inserting in a direction (claims)5). According to this method, it is possible to manage the degree of insertion (pressing) on the fixing member, and it is possible to fix the light source casing and the lens barrel with high accuracy.
[0015]
  In addition, the lens barrel is formed with an ultraviolet irradiation hole that reaches the gap, and in the step of filling the adhesive, the gap is filled with an adhesive that cures when irradiated with ultraviolet light, and the ultraviolet irradiation hole is formed. It may be a method of irradiating the adhesive with ultraviolet rays through6). According to this method, the light source casing and the lens barrel can be quickly fixed with an adhesive, and the efficiency of the fixing operation can be increased.
[0016]
  The fixing member may be a heating element that generates heat when energized, and the step of filling the adhesive may include a method of filling the gap with a thermosetting adhesive and energizing the fixing member.7). According to this method, the light source casing and the lens barrel can be quickly fixed with an adhesive, and the efficiency of the fixing operation can be increased.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the optical axis fixing method of the present invention will be described below with reference to the drawings together with embodiments of the ink discharger of the present invention.
[0019]
FIG. 1 is a schematic configuration diagram of a summing device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing a state in which a light source housing and a lens barrel are fixed by a taper pin shown in FIG. The first embodiment will be described with reference to the drawings.
[0020]
The inking device includes a light source 11 including a laser 111 for emitting a laser beam, a rod lens 112 disposed in front of the laser 111 and converting the laser beam into slit light (linear beam), and the slit light is rectangular. A light source casing 12 in which the light source 11 is fixed so as to be emitted from one surface (front side in FIG. 1), a rectangular hole (housing chamber) 131 larger than the light source casing 12, and described later. From the lens barrel 13 having the three holes 132 for inserting the taper pins 15 on the side surface, the light source housing 12 being incorporated into the holes 131 so that the slit light is emitted from the side surface, and the outer diameter of the lens barrel 13 An inner ring 142 that supports one end (upper end in FIG. 1) of the lens barrel 13 via two shafts 141, and has an inner diameter larger than the outer diameter of the inner ring 142. And a support mechanism 14 having a so-called gimbal structure constituted by a tripod 145 attached to a lower side surface of the outer ring 144, and an outer ring 144 that supports the outer ring 142 via two shafts 143. Three taper pins (fixing members) 15 different from the conventional one are provided, and a gap formed when the light source housing 12 is incorporated into the hole 131 is filled with an adhesive 16.
[0021]
The three taper pins 15 fix the light source casing 12 and the lens barrel 13 so that the angle of extension of the optical axis of the light source 11 from the lens barrel 13 can be adjusted, and the tip portions are all tapered. 3 so as to sandwich the side surface extending from one surface of the light source housing 12 at the tapered portion of the tip (from the direction facing each other) 3 toward the inside from the outside of the side surface of the lens barrel 13. Each of the holes 132 is inserted.
[0022]
Next, a procedure for fixing the light source casing 12 and the lens barrel 13 with the three tapered pins 15 will be described. However, for convenience of explanation, reference numerals 151, 152, and 153 of the taper pins on the left side, the right front side, and the right back side shown in FIG.
[0023]
First, the light source housing 12 is assembled into the hole 131 of the lens barrel 13.
[0024]
Next, the three taper pins 15 are inserted into the three holes 132 of the lens barrel 13 so that the tapered portions of the tip portions sandwich the side surfaces extending from one surface of the light source housing 12, respectively. The housing 12 and the lens barrel 13 are fixed. Here, since the fixed state and the extension angle of the optical axis of the light source 11 are determined by the insertion degree of each taper pin inserted and fixed, the extension angle can be adjusted by the taper pin according to the insertion degree. The body 12 and the lens barrel 13 can be fixed. Thereby, if each taper pin is inserted according to the state adjusted with the adjustment jig mentioned later, the light source housing | casing 12 and the lens-barrel 13 can be fixed in the adjusted state. Note that the extension angle may be adjusted to a desired angle by adjusting the insertion degree of each taper pin itself from the temporarily fixed state.
[0025]
Next, the adhesive 16 is filled into a gap generated when the light source housing 12 is incorporated into the hole 131. Thereby, the light source housing 12 and the lens barrel 13 are firmly fixed.
[0026]
As described above, according to the first embodiment, the three taper pins 15 have the three lens barrels 13 so as to sandwich the side surfaces extending from one surface of the light source housing 12 at the tapered portions of the tip portions. Since they are respectively inserted into the holes 132, it is possible to prevent the light source casing 12 from being easily distorted when the light source casing 12 and the lens barrel 13 are fixed, as compared with the case where the tip is clamped. As a result, high-precision fixing without distortion becomes possible.
[0027]
Further, there are three taper pins 15 used for fixing the light source housing 12 and the lens barrel 13, and it is easy to understand the change in the inclination of the light source housing 12 according to the insertion degree of these three taper pins 15. In addition, since there are few adjustment points, the extension angle of the optical axis of the light source 11 from the lens barrel 13 can be easily adjusted. This makes it possible to increase the efficiency of the fixing work.
[0028]
In the first embodiment, the three taper pins 15 are used. However, the number is not limited to this, and the number of 4 to 9 pins is adjusted more than in the case of the inking device shown in FIGS. 10 and 11. Since the number of locations is small, the angle of extension of the optical axis of the light source 11 from the lens barrel 13 can be easily adjusted.
[0029]
For filling the gap of the adhesive 16, for example, a hole as an injection path for the adhesive 16 may be formed in the lens barrel 13. In short, an injection path for the adhesive 16 into the gap is provided. A structure may be used. Moreover, such a structure is applicable also to the following embodiments except the following second embodiment.
[0030]
Furthermore, in 1st Embodiment, although it has the structure where the light source housing | casing 12 which inject | emits the slit light of a perpendicular direction is incorporated in the inside of the lens-barrel 13, not only this but the slit light of various directions is inject | emitted. A structure in which a plurality of light source casings are incorporated may be used. Such a structure can also be applied to the following embodiments.
[0031]
FIG. 3 is a schematic configuration diagram of a summing device according to a second embodiment of the present invention. The second embodiment will be described below with reference to this drawing.
[0032]
Similar to the first embodiment, the present ink removal device includes a light source 11 and a support mechanism 14, and a gap described later is filled with an adhesive 16, and the structure differs from that of the first embodiment. A light source housing 22 in which the light source 11 is fixed so that light is emitted from one circular surface, a circular hole (housing chamber) 231 larger than the light source housing 22, and a taper pin 25 described later. A lens barrel 23 in which the light source housing 22 is incorporated in the hole 231 so that slit light is emitted from the side surface, and three taper pins (fixing members) 25 are provided. It has. Needless to say, the one surface of the light source housing 22 and the hole 231 of the lens barrel 23 may have the same shape as the one surface of the light source housing 12 and the hole 131 of the lens barrel 13 shown in FIG. The same applies to FIGS. 4 to 9 described later.
[0033]
These three taper pins 25 fix the light source housing 22 and the lens barrel 23 so that the angle of extension of the optical axis of the light source 11 from the lens barrel 23 can be adjusted, and the tip portions are all tapered. The lens barrel 23 is inserted into the three holes 132 from the outside to the inside so that the side surface extending from one surface of the light source housing 22 is sandwiched between the tapered portions of the tip portions. Each taper pin 25 is formed with a hole (adhesive injection path) 251 for injecting the adhesive 16 from the outside into a gap formed by incorporating the light source housing 22 into the hole 231.
[0034]
Next, the procedure for fixing the light source casing 22 and the lens barrel 23 by the three taper pins 25 will be outlined. First, the light source casing 22 is assembled in the hole 231 of the lens barrel 23.
[0035]
Next, the three taper pins 25 are inserted into the three holes 132 of the lens barrel 23 such that the tapered portions of the tip portions sandwich the side surfaces extending from one surface of the light source housing 22. The process up to this point is the same as in the first embodiment.
[0036]
Next, the adhesive 16 is filled through the holes 251 of the respective taper pins 25 into the gaps generated when the light source housing 22 is incorporated into the holes 231. Thereby, the light source housing 12 and the lens barrel 13 are firmly fixed.
[0037]
As described above, according to the second embodiment, the light source housing 22 can be easily prevented from being distorted when the light source housing 22 and the lens barrel 23 are fixed, and the light of the light source 11 from the lens barrel 23 can be prevented. It becomes possible to easily adjust the extension angle of the shaft.
[0038]
Further, it is possible to easily fill the gap 16 with the adhesive 16 from the outside without providing the lens barrel 23 with holes for filling the gap 16 with the adhesive 16. Moreover, simplification of fixing with an adhesive can be achieved.
[0039]
In addition, in 2nd Embodiment, although it has the structure where a hole is formed as an adhesive agent injection path with respect to the taper pin 25, not only this but the structure in which a groove | channel etc. are formed may be sufficient.
[0040]
FIG. 4 is a schematic configuration diagram of the inking device according to the third embodiment of the present invention. Hereinafter, the third embodiment will be described with reference to this drawing. The inking device is a light source as in the second embodiment. 11. A light source housing 22 and a support mechanism 14 are provided, and a gap described later is filled with an adhesive 16, and a circular hole larger than the light source housing 22 is assumed to be different in structure from the second embodiment. 231 and three screw holes (hereinafter simply referred to as holes) 332 for a taper pin 35 to be described later, and a lens barrel 33 in which the light source housing 22 is incorporated into the hole 231 so that slit light is emitted from the side surface; Three taper pins (fixing members) 35 are provided.
[0041]
These three taper pins 35 are screws for fixing the light source housing 22 and the lens barrel 33 so that the extension angle of the optical axis of the light source 11 from the lens barrel 33 can be adjusted, and the tip portions are all conical. The three holes 332 are formed from the outside of the side surface of the lens barrel 33 to the inside so as to sandwich the side surface extending from one surface of the light source housing 22 at the tapered portion of the tip portion. Each is screwed into and inserted.
[0042]
Next, a procedure for fixing the light source casing 22 and the lens barrel 33 by the three taper pins 35 will be described. First, the light source casing 22 is assembled in the hole 231 of the lens barrel 33.
[0043]
Next, the three tapered pins 35 are screwed and inserted into the three holes 332 of the lens barrel 33 so that the tapered portions of the tip portions sandwich the side surfaces extending from one surface of the light source housing 22.
[0044]
Next, the adhesive 16 is filled into a gap generated when the light source housing 22 is incorporated into the hole 231. Thereby, the light source housing 22 and the lens barrel 33 are firmly fixed.
[0045]
As described above, according to the third embodiment, the light source housing 22 can be easily prevented from being distorted when the light source housing 22 and the lens barrel 33 are fixed, and the light of the light source 11 from the lens barrel 33 can be prevented. It becomes possible to easily adjust the extension angle of the shaft.
[0046]
Further, since the taper pin 35 is a screw, the extension angle of the optical axis of the light source 11 from the lens barrel 33 can be adjusted by tightening or loosening the taper pin 35.
[0047]
FIG. 5 is a schematic configuration diagram of a deinking device according to the fourth embodiment of the present invention. Hereinafter, the fourth embodiment will be described with reference to this drawing. The deinking device is similar to the third embodiment in the light source. 11, the light source housing 22, the lens barrel 33, and the support mechanism 14. The gap formed when the light source housing 22 is assembled into the hole 231 is filled with the adhesive 16, and the structure of the third embodiment is the same as that of the third embodiment. Differently, three taper pins (fixing members) 45 are provided.
[0048]
These three taper pins 45 are screws that fix the light source housing 22 and the lens barrel 33 so that the extension angle of the optical axis of the light source 11 from the lens barrel 33 can be adjusted. Are formed into a pyramid shape (wedge shape), and from the outside of the side surface of the lens barrel 33, the side surface extending from one surface of the light source housing 22 is sandwiched between the tapered portions of the tip portions. Are respectively pushed into the three holes 332 toward the front.
[0049]
Next, a procedure for fixing the light source casing 22 and the lens barrel 33 by the three taper pins 45 will be described. First, the light source casing 22 is assembled in the hole 231 of the lens barrel 33.
[0050]
Next, the three taper pins 45 are respectively pushed into the three holes 332 of the lens barrel 33, and further screw 46 is screwed to further deeply push the three taper pins 45 into the taper pins 45. A side surface extending from one surface of the light source housing 22 is sandwiched by the tapered portion of the tip portion (the whole including the tip portion in FIG. 5). The taper pins 45 may be temporarily pushed into the holes 332 before the light source housing 22 is assembled into the holes 231 of the lens barrel 33.
[0051]
Next, the adhesive 16 is filled into a gap generated when the light source housing 22 is incorporated into the hole 231. Thereby, the light source housing 22 and the lens barrel 33 are firmly fixed.
[0052]
As described above, according to the fourth embodiment, the light source housing 22 can be easily prevented from being distorted when the light source housing 22 and the lens barrel 33 are fixed, and the light of the light source 11 from the lens barrel 33 can be prevented. It becomes possible to easily adjust the extension angle of the shaft.
[0053]
FIG. 6 is a schematic configuration diagram of the inking device according to the fifth embodiment of the present invention. Hereinafter, the fifth embodiment will be described with reference to this drawing. The inking device is a light source as in the third embodiment. 11, a lens barrel 33 and a support mechanism 14, and a gap described later is filled with an adhesive 16, and a light source 11 is fixed inside so that slit light is emitted from one circular surface, and is electrically conductive. A light source casing 52 having a transparent surface and three taper pins (fixing members) 55 are provided.
[0054]
These three taper pins 55 are screws for fixing the light source housing 52 and the lens barrel 33 so that the angle of extension of the optical axis of the light source 11 from the lens barrel 33 can be adjusted, and the tip portions are all tapered. Are inserted into the three holes 332 from the outside to the inside of the side surface of the lens barrel 33 so that the side surfaces extending from one surface of the light source housing 52 are sandwiched between the tapered portions of the tip portions. ing. Each taper pin 55 has a conductive surface.
[0055]
Here, a part of the surface of the light source casing 52 incorporated in the hole 231 is exposed as in FIG. Thereby, each taper pin 55 and the light source casing 52 can be electrically connected from the outside of the lens barrel 33.
[0056]
Next, a procedure for fixing the light source casing 52 and the lens barrel 33 by the three taper pins 55 will be described. First, the light source casing 22 is assembled in the hole 231 of the lens barrel 33.
[0057]
Next, a galvanometer, a tester, or the like that detects whether the taper pin 55 and the light source housing 52 are in contact with the surface of each taper pin 55 and the light source housing 52 according to whether or not a current flows. Detector (contact detection means) 57 is electrically connected.
[0058]
Next, the contact between the taper pin 55 and the light source housing 52 is detected by the detector 57 so that the tapered portions of the three taper pins 55 sandwich the side surface extending from one surface of the light source housing 52. Until they are inserted into the three holes 332 of the lens barrel 33.
[0059]
Next, the adhesive 16 is filled into a gap generated when the light source housing 52 is incorporated into the hole 231. Thereby, the light source casing 52 and the lens barrel 33 are firmly fixed.
[0060]
As described above, according to the fifth embodiment, the light source casing 52 can be easily prevented from being distorted when the light source casing 52 and the lens barrel 33 are fixed, and the light of the light source 11 from the lens barrel 33 can be prevented. It becomes possible to easily adjust the extension angle of the shaft.
[0061]
Further, the degree of insertion (pressing) with respect to the taper pin 55 can be managed, and the light source casing 52 and the lens barrel 33 can be fixed with high accuracy.
[0062]
Further, the light source casing 52 and the lens barrel 33 can be fixed in a state where the light source casing 52 is incorporated in a predetermined position of the hole 231 of the lens barrel 33.
[0063]
FIG. 7 is a schematic configuration diagram of the inking device according to the sixth embodiment of the present invention. Hereinafter, the inking device will be described with reference to this drawing. The inking device includes the light source 11, the support mechanism 14, and the taper pin. 15 is provided in the same manner as in the first embodiment, and differs from the first embodiment in that the light source 11 is fixed inside so that the slit light is emitted from one circular surface; A circular hole 231 larger than the light source casing 22, three holes 132 for inserting the taper pins 15, and a plurality of ultraviolet irradiation holes 633 are provided on the side surface so that the slit light is emitted from the side surface side. And a lens barrel 63 in which the light source housing 22 is incorporated in the hole 231, and a gap generated by the light source housing 22 being incorporated in the hole 231 is filled with an adhesive 66 that is cured by irradiation of ultraviolet rays.
[0064]
Next, the procedure for fixing the light source casing 22 and the lens barrel 63 with the three taper pins 15 will be outlined. First, the light source casing 22 is assembled in the hole 231 of the lens barrel 63.
[0065]
Next, the three taper pins 15 are inserted into the three holes 132 of the lens barrel 23 such that the tapered portions of the tip portions sandwich the side surfaces extending from one surface of the light source housing 22.
[0066]
Next, the adhesive 66 is filled in a gap generated when the light source housing 22 is incorporated into the hole 231. The process up to this point is the same as in the first embodiment.
[0067]
Next, the adhesive 66 filled with ultraviolet rays from the UV light source 68 is irradiated through the plurality of holes 633. As a result, the adhesive 66 is cured and the light source housing 22 and the lens barrel 63 are firmly and quickly fixed.
[0068]
As described above, according to the sixth embodiment, the light source housing 22 can be easily prevented from being distorted when the light source housing 22 and the lens barrel 63 are fixed, and the light of the light source 11 from the lens barrel 63 can be prevented. It becomes possible to easily adjust the extension angle of the shaft. In addition, the light source housing 22 and the lens barrel 63 can be quickly fixed by the adhesive 66, and the efficiency of the fixing operation can be increased.
[0069]
FIG. 8 is a schematic configuration diagram of the inking device according to the seventh embodiment of the present invention. Hereinafter, the inking device will be described with reference to this drawing. The inking device includes the light source 11, the lens barrel 23, and the support mechanism. 14 is provided in the same manner as in the second embodiment, and is different from the second embodiment in that the light source 11 is fixed inside so that the slit light is emitted from one circular surface. A light source casing 72 and three taper pins (fixing members) 75 are provided, and a gap formed when the light source casing 22 is incorporated into the hole 231 is filled with a thermosetting adhesive 76.
[0070]
These three taper pins 75 are heating elements that fix the light source housing 22 and the lens barrel 23 so that the extension angle of the optical axis of the light source 11 from the lens barrel 23 can be adjusted, and generate heat when energized. The tip portions are each formed into a tapered shape, and three holes 132 from the outside of the side surface of the lens barrel 23 to the inside so as to sandwich the side surface extending from one surface of the light source housing 22 at the tapered portion of the tip portion. Are inserted respectively.
[0071]
Next, the procedure for fixing the light source casing 22 and the lens barrel 23 with the three taper pins 75 will be outlined. First, the light source casing 22 is assembled in the hole 231 of the lens barrel 23.
[0072]
Next, the three taper pins 75 are inserted into the three holes 132 of the lens barrel 23 so that the tapered portions of the tip portions sandwich the side surfaces extending from one surface of the light source housing 22.
[0073]
Next, the adhesive 76 is filled in a gap generated when the light source housing 22 is incorporated into the hole 231. Thereafter, a power source 79 is connected between the taper pins 75 to energize. As a result, the adhesive 76 is cured, and the light source housing 22 and the lens barrel 23 are firmly and quickly fixed.
[0074]
As described above, according to the seventh embodiment, the light source casing 22 can be easily prevented from being distorted when the light source casing 22 and the lens barrel 23 are fixed, and the light of the light source 11 from the lens barrel 23 can be prevented. It becomes possible to easily adjust the extension angle of the shaft. In addition, the light source housing 22 and the lens barrel 23 can be quickly fixed by the adhesive 76, and the efficiency of the fixing operation can be increased.
[0075]
FIG. 9 is an explanatory view of an optical axis fixing method according to the eighth embodiment of the present invention. Hereinafter, the optical axis fixing method will be described with reference to FIG. However, the optical axis is fixed, that is, the light source casing 82 corresponding to any of the first to seventh embodiments, the hole (housing chamber) 831 larger than the light source casing 82, and the taper pin 85 3 for insertion. A plurality of light source housings 82 having a plurality of holes 832 on the side surface and a plurality of light source housings 82 incorporated in the respective holes 831 so that slit light is emitted from the side surface side. A taper pin 85 corresponding to any of the seven embodiments and the following adjustment jig (adjustment device) 80 are used.
[0076]
The adjustment jig 80 includes a θ table 801 that supports the lens barrel 83 so as to be rotatable about the axis in a horizontal plane, a linear movement stage 802 that moves the light source housing 82 straightly and is incorporated in the lens barrel 83, and a light source A first fine movement stage 803 that adjusts the vertical and horizontal position of the light source casing 82 by moving the casing 82 in the vertical and horizontal directions, and the optical axis of the light source 11 by rotating the light source casing 82 in a horizontal plane. And a second fine movement stage 804 that adjusts the angle in the tilt direction with respect to the vertical direction.
[0077]
Using the adjustment jig 80 configured as described above, the lens barrel 83 is fitted in the center of the θ table 801, and the following processing is sequentially repeated for each hole 831 of the lens barrel 83.
[0078]
First, the θ table 801 is driven so that the axis of the hole 831 into which the light source housing 82 is to be incorporated coincides with the rectilinear direction of the linear motion stage 802.
[0079]
Next, the first and second fine movement stages 803 and 804 are driven to adjust the position of the light source housing 82 to a predetermined reference position, and then the linear motion stage 802 is driven to make the light source housing 82 a mirror. It is assembled in the hole 831 of the cylinder 83.
[0080]
Next, the three taper pins 85 are inserted into the corresponding three holes 832 of the lens barrel 83 so that the tapered portions of the tip portions sandwich the side surfaces extending from one surface of the light source housing 82. Thereafter, an adhesive is filled in a gap generated when the light source casing 82 is incorporated into the hole 831.
[0081]
As described above, according to the eighth embodiment, the work for fixing the optical axis can be simplified and the work efficiency can be improved.
[0082]
In the eighth embodiment, the light source casing 82 is incorporated into the lens barrel 83 after adjusting the emission angle. However, the present invention is not limited to this, and is incorporated into the lens barrel 83 before adjusting the emission angle. Procedure may be used.
[0083]
【The invention's effect】
  As is clear from the above, the claim 14According to the invention described above, the light source casing can be easily prevented from being distorted when the light source casing and the lens barrel are fixed.
[0084]
  Claim2According to the described invention, the adhesive can be easily filled into the gap from the outside.
[0085]
  Claim3According to the described invention, the extension angle of the optical axis of the light source from the lens barrel can be adjusted by tightening or loosening the fixing member.
[0086]
  Claim5According to the described invention, it is possible to manage the degree of insertion (pressing) on the fixing member, and it is possible to fix the light source casing and the lens barrel with high accuracy.
[0087]
  Claim6According to the described invention, the light source casing and the lens barrel can be quickly fixed with an adhesive, and the efficiency of the fixing operation can be improved.
[0088]
  Claim7According to the described invention,It is possible to quickly fix the light source housing and the lens barrel with adhesive, which makes it possible to improve the efficiency of the fixing work.The
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a deinking device according to a first embodiment of the present invention.
2 is a cross-sectional view showing a state in which a light source casing and a lens barrel are fixed by a taper pin shown in FIG. 1;
FIG. 3 is a schematic configuration diagram of a deinking device according to a second embodiment of the present invention.
FIG. 4 is a schematic configuration diagram of a deinking device according to a third embodiment of the present invention.
FIG. 5 is a schematic configuration diagram of a deinking device according to a fourth embodiment of the present invention.
FIG. 6 is a schematic configuration diagram of a deinking device according to a fifth embodiment of the present invention.
FIG. 7 is a schematic configuration diagram of a deinking device according to a sixth embodiment of the present invention.
FIG. 8 is a schematic configuration diagram of a deinking device according to a seventh embodiment of the present invention.
FIG. 9 is an explanatory diagram of an optical axis fixing method according to an eighth embodiment of the present invention.
FIG. 10 is a cross-sectional view showing a conventional fixing structure between a light source casing and a lens barrel.
FIG. 11 is a side view showing a conventional fixing structure between a light source casing and a lens barrel.
[Explanation of symbols]
11 Light source
12, 22, 52, 82 Light source housing
13, 23, 33, 63, 83
14 Support mechanism
15, 25, 35, 45, 55, 75, 85 Taper pin
16, 66, 76 Adhesive

Claims

A light source housing in which the light source is fixed so that the optical axis of the light source extends from one surface, and a storage chamber larger than the light source housing, and the optical axis extends from the side surface side. A method of fixing the optical axis, wherein the light source casing is fixed to a lens barrel incorporated in the storage chamber so that an extension angle of the optical axis from the lens barrel is adjustable.
A first fine movement stage that moves the light source casing in the vertical and horizontal directions to adjust the position of the light source casing in the vertical and horizontal directions; and the optical axis of the light source by rotating the light source casing in a horizontal plane. The adjusting device includes a second fine movement stage that adjusts an angle in a tilt direction with respect to a first movement stage and a linear movement stage that moves the light source casing straightly and incorporates the light source casing into a storage chamber inside the lens barrel. Adjust the position of the light source casing to a predetermined reference position by a fine movement stage, and then incorporate the light source casing into a storage chamber inside the lens barrel by the linear motion stage,
Each of the fixing members is attached to the lens barrel so that a side surface extending from one surface of the light source casing is sandwiched between the tapered portions of the tip portions of the at least three fixing members having tip portions tapered. Insert from the outside into the inside of at least three holes on the side,
Fill the gap generated when the light source casing is incorporated into the storage chamber with an adhesive.
An optical axis fixing method including each step.

An adhesive injection path for injecting the adhesive into the gap from the outside of the lens barrel is formed in the fixing member,
In the step of filling the adhesive, the adhesive is filled into the gap through the adhesive injection path.
The optical axis fixing method according to claim 1 .

The fixing member is a screw having a conical tip.
Wherein each of the fixing member in the step of inserting toward the inside from the side surface outside of said barrel, each of the fixing member according to claim 1 or 2, wherein inserts screwed toward the inside from the side surface outside of the lens barrel How to fix the optical axis.

The fixing member is a screw tip is formed into a square cone,
Internal each of the fixing member in the step of inserting toward the inside from the side surface outside of the lens barrel, each of the fixing member, from the side surface outside of the lens barrel at the tip of the other screw while screwing another screw The method of fixing an optical axis according to claim 1 or 2 , wherein the optical axis is pushed toward the top .

Both the fixing member and the light source housing have a conductive surface,
In the step of inserting each of the fixing members from the outside of the side surface of the barrel toward the inside,
Electrically connecting contact detecting means for detecting whether or not the fixed member and the light source casing are in contact with each other depending on whether or not current flows, to each surface of the fixing member and the light source casing;
Light according to any one of claims 1 to 4 inserted toward each of said fixing member to contact the fixing member and the light source housing is detected by said contact detection means inside from the side surface outside of the lens barrel How to fix the shaft.

The lens barrel is formed with an ultraviolet irradiation hole reaching the gap, and in the step of filling the adhesive, the gap is filled with an adhesive that cures by irradiation with ultraviolet light, and the ultraviolet irradiation hole is passed through the hole. The method of fixing an optical axis according to claim 1 , wherein the adhesive is irradiated with ultraviolet rays .

The fixing member is a heating element which generates heat by energization, in the step of filling the adhesive, filled with a thermosetting adhesive in the gap, claim 1 to perform the energization to the fixing member The optical axis fixing method described in 1 .