JP7134996B2 - 物体の接合方法および被接合部材に接合される物体 - Google Patents
物体の接合方法および被接合部材に接合される物体 Download PDFInfo
- Publication number
- JP7134996B2 JP7134996B2 JP2019551554A JP2019551554A JP7134996B2 JP 7134996 B2 JP7134996 B2 JP 7134996B2 JP 2019551554 A JP2019551554 A JP 2019551554A JP 2019551554 A JP2019551554 A JP 2019551554A JP 7134996 B2 JP7134996 B2 JP 7134996B2
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- protrusion
- thermoplastic material
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- proximal
- mechanical
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Images
Classifications
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Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Description
・熱可塑性材料の流動部分が流動可能になり第2の物体の構造に貫入するまで、機械的押圧力および熱可塑性材料を液化可能な機械的励起を第1の物体と第2の物体とのうち少なくとも1つに対して加えるステップ。
・機械的励起を加えるステップは、近位面に対して角度を有して延びる軸に沿って機械的振動を加えることを含み、設けられた第2の物体の近位面は、低密度である。
ここでいう「圧縮強度」という用語は、ある領域が変位される前に、すなわち、当該領域を規定する材料が(さらに)圧縮される前に領域によって生成される、1平方ミリメートルあたりの最大の力を表す。それゆえ、圧縮強度はまた、さらなる圧縮に対する抵抗または剛性とみなすこともできる。
圧縮強度(応力)の変化は、加えられた機械的押圧力および機械的励起が熱可塑性材料を液化させることができるようなものでもよい。言い換えると、低密度の領域は、圧縮強度を変えることなく、機械的押圧力および機械的励起を加えるステップにおいて熱可塑性材料を液化させるために必要な圧縮強度を提供することができないようなものでよい。
多くの実施形態では、圧縮強度の増加は、少なくとも低密度の領域の局所圧縮によって引き起こされる。言い換えると、本方法は、少なくとも局所的に低密度の領域を圧縮するステップを含んでもよい。
実施形態では、第2の物体は第2の物体組成で構成されてもよく、第2の物体の構造は、本質的に当該組成によって形成されてもよい。たとえば、構造は孔、空隙、チャネルなどでもよい。
第2の物体が近位面と遠位面との間で延在する場合、密度は第2の物体の制限された範囲にわたってのみ増加可能である。
近位最上層は、他の高密度の領域でもよい。
少なくとも局所的に低密度の領域を圧縮するステップは、機械的押圧力および熱可塑性材料を液化可能な機械的励起を加えるステップのサブステップでもよい。
全体的な圧縮は、1つ(または複数)の突出部の周囲だけではなくより広い領域にわたって低密度の領域を圧縮することによって、確立することができる。たとえばこれは、第1の物体本体によって行うことができる、特に、その遠位面またはその一部によって行うことができる。特に、第1の物体本体は、少なくとも部分的に低密度の領域に貫入可能である。
特にインコヒーレント材料では、臨界密度は1つ(または複数)の突出部の周囲にのみ、たとえば、臨界密度に到達するには十分ではない量だけ全体的な圧縮の局所的な増加によって確立可能である。
他の物体は、第1の物体、第2の物体、および他の物体とは異なる物体を第1の物体および/または第2の物体に搭載するように備え付けられてもよい。
ソノトロードは、リングソノトロードでもよい。
1つ(または複数)の突出部は、先細りになっていてもよく、たとえば、稜線または先端などの任意のとがった、および/または鋭い形状を有していてもよい。
本明細書では、「間隙」は、突出部間の距離ではなく、ある突出部を他の突出部から分離する全体的な空間を表す。
上述したように、当該間隙を規定する第1の物体の表面は、第1の物体、特に低密度の領域を、熱可塑性材料の液化前に圧縮するように配置可能である。
一実施形態では、方法はさらに以下のステップを備える。
・第3の物体遠位面が第2の物体の近位面と物理的に接触するように、第3の物体を第2の物体に対して配置するステップ。
実験によると、少なくとも、最大で0.3mmの厚さ(強度)を有するチタンシート、および最大で0.5mmの厚さを有するアルミニウムシートの穿孔が可能であることが分かっている。
第1の物体が第1の物体の液化前に第2の物体への第1の物体の貫入深さを示す印を含む場合、停止面は、印の近位方向に配置される。
・貫通孔を含む金属シート。貫通孔は、遠位方向に湾曲される領域を形成可能である。
一実施形態では、設けられた第2の物体は遠位面を含み、設けられた第1の物体と機械的押圧力および機械的励起を加えるステップとは、遠位面が方法によって影響を受けないようなものでよい。
たとえば、第2の物体は、先に開示されたような熱可塑性繊維を含んでもよい。そうすると、熱可塑性繊維は、加えられた機械的押圧力および機械的励起の衝撃によって、1つ(または複数)の突出部の周囲の領域で共に溶融可能である。言い換えると、熱可塑性繊維が当該領域で接続する。
第2の物体がたとえばプラスチックに埋込まれた天然繊維または合成繊維からなる実施形態では、当該プラスチックは、第2の物体の熱可塑性材料でもよい。
・第1の種類の繊維と第2の種類の繊維とを設け、第1の種類の繊維の融点は、第2の種類の繊維の融点よりも低いステップ。
装置は、近位端部と遠位端部との間に延在し、近位面と遠位面とを形成する装置本体を含む。装置は、遠位面から突出する複数の突出部を含む。
各突出部は、1つ以上の点、すなわち1つの先端または複数の先端に向かって先細りになっていてもよい、または線、すなわち稜線状の線に向かって先細りになっていてもよい。線は直線でも湾曲していてもよい。
突出部は、全体形状によって、たとえば先細りになることによって、もしくは段を含むことによってエネルギー方向構造を形成してもよい、および/または、専らエネルギー誘導部として機能する構造を含んでもよい。
特に、コネクタは、コネクタの近位端部に他の物体を取付けるように備え付けられてもよく、コネクタは、その遠位端部において製品に接合されている。
・機械的押圧力、場合によっては機械的励起を加える道具は、コネクタが適切に規定されたz位置に到達するとプロセスを停止する位置制御装置を含む。
道具、特にソノトロードのカップリングアウト面は、対応する構造を含んでもよい、または形成してもよい。
装置本体(第1の物体本体)の固有振動の周波数は、複数の別個の突出部領域を第1の物体本体の遠位面上に配置することによって熱可塑性材料を液化させるために必要とされ、かつ加えられる機械的励起の周波数から外れるように調節されてもよいことが分かっている。特に、固有振動の周波数は、別個の突出部領域間の距離、別個の突出部領域の数、および第1の物体本体の遠位面上を覆う別個の突出部領域の面積によって調整可能である。
この特徴は、空隙(開口部)を含む装置本体を含む。特に、空隙は、装置本体の形状がソノトロードのカップリングアウト面の形状に適合されるようなものでよい。
一実施形態では、第1の物体は、突出部の第1の列および突出部の第2の列を含んでもよい。これらの列は、直線または湾曲した線を辿ってもよい。これらの列は、互いに平行に延びてもよい。
たとえば、第1の列と第2の列との間の領域は、第1の物体の遠位面上の他の領域からずれていてもよい。
本発明に係る方法に好適な機械的振動または発振は、好ましくは、2~200kHzの周波数(さらに好ましくは、10~100kHzまたは20~40kHzの周波数を有する超音波信号)および作用面1平方ミリメートルあたり0.2~20Wの振動エネルギーを有する。振動ツール(ソノトロード)は、たとえば、その接続面が主に道具の軸の方向に(長手方向振動)、1~100μm、好ましくは約30~60μmの振幅で振動するように設計されている。そのような好ましい振動は、たとえば超音波溶接で知られる超音波装置によって生成される。
図3cは、第2の物体2において、第2の物体の密度が、第1の物体または第2の物体および/またはそれらの特性を破壊することなく、本体を第2の物体内に押込むことができるような場合の、突出部9と本体7とを押すステップの間の状況を示す。
第1の物体1は、図示された実施形態では、突出要素15の周囲の第1の物体1の近位面上に配置されたカップリングイン面11を含む。
図12は、接合プロセスの後の状況を示す。熱可塑性材料3は、コア層19の構造10に貫入しており、第1の物体と第2の物体との間にポジティブフィット接続を、特に、第1の物体1の貫入方向に直角にポジティブフィット接続を形成する。
図16に示す実施形態は、図15に示すような第1の物体、第2の物体、および第3の物体の組立品をもたらす方法において提供される実施形態に相当する。
熱可塑性材料3で形成されたとげは、さらに、突出部9および突出部分91それぞれの埋込みを向上可能である。
図18は、第1の物体および第2の物体とは異なる物体100が、他の物体40を第1の物体1に接続することによって、第2の物体に取付けられる方法の実施形態の結果を示す断面図である。
他の要素40は、先端の形状で遠位端部41を有する、くぎなどの固定要素である。他の要素40はさらに取付け場所42を含み、取付け場所42は、物体100を貫通して第2の物体2に取付けられるように、かつ、第1の物体7の本体7に貫入するように配置されている。
図20aは、第1の物体1を第2の物体2に対して位置決めした後の状況を示す。第1の物体2の突出部9は、大幅な変形を伴うことなく、近位最上層200に貫入するように設計されている。さらに、突出部9は、遠位先端または縁部を含んでもよい。
図25bは、第2の物体2に取付けられた、図25aに示す第1の物体1の断面図を示す。第1の接合場所13は、第2の物体2の第1の側に配置されており、第2の接合場所13は、第1の側に平行ではない第2の物体2の第2の側に配置されている。
本体7の1つ(または複数)の遠位面28が第2の物体2の1つ(または複数)の対応する面と同じ高さになるように本体7を第2の物体2内に押込む効果は、少なくとも、本体7が第2の物体2内に押込まれる領域における第2の物体2の全体的な圧縮である。詳細に説明したように、結果として生じる圧縮領域201は、特に突出部9によって生じる局所圧縮と組合わされると、熱可塑性材料3の効率的な液化にとって必須のものである場合がある。
図30は、さらに他の種類の第2の物体2に接合された第1の物体1の断面図である。本実施形態によると、設けられた第2の物体2は、低密度の領域22上に配置された近位最上層200に特徴があり、低密度の領域22は、第2の物体2に機械的安定性を与えることが可能な、高密度の領域23上に配置されている。
本実施形態では、第1の物体1は、光学的特徴として、本体7の側方端の領域に配置された保持突出部213を含んでもよい。保持突出部213は、本体7の遠位面28から遠位方向へと突出する。
図44~図49は、第1の物体の本体7にとって破壊的なこともある力の、第1の物体本体7における固有振動の発生を予防可能な特徴を含む、第1の物体1の例示的な実施形態を示す。
減衰要素52は、第2の物体2の近位面4と接触する、または場合によっては、第1の物体1を第2の物体2に接合する方法を行っている間に、第3の物体3の近位面31と接触する。これによって、熱可塑性材料3を液化するために機械的励起を加えるステップの間に第1の物体の本体7で発生した固有振動は、減衰要素52と第2の物体、または場合によっては第3の物体3との間で生成された物理的接触によって減衰可能である。
第3の物体30の取付けは、第2の物体2の少なくとも局所圧縮を含んでもよく、臨界密度および/または臨界圧縮強度が生成されるような態様である。
・金属シート30の近位面31が突出部9に接触するように、かつ、金属シート30の遠位面32が第2の物体2に接触するように、第1の物体1、第2の物体2、および金属シート30を互いに相対的に配置するステップ。
図55に示すような第1の物体は、特に第3の物体が金属シート30の場合、第3の物体30の破壊的な固有振動および破壊的な変形の防止に役立つ。
図57aおよび図57bは、以下を示す。
Claims (21)
- 第1の物体(1)を第2の物体(2)に接合する方法であって、前記方法は、
前記第1の物体(1)を設けるステップを備え、前記第1の物体(1)は、近位端部(5)と遠位端部(6)との間で延在し、第1の物体本体(7)と前記第1の物体本体(7)から遠位方向の少なくとも1つの突出部(9)とを含み、前記突出部(9)は、前記遠位端部(6)を形成し、固体の状態の熱可塑性材料(3)を含み、前記方法はさらに、
近位面(4)を含む前記第2の物体(2)を設けるステップと、
前記熱可塑性材料の流動部分が流動可能になり、前記第2の物体(2)の構造(10)に貫入するまで、機械的押圧力と前記熱可塑性材料(3)を液化可能な機械的励起とを前記第1の物体と前記第2の物体とのうち少なくとも1つに対して加えるステップと、
前記機械的励起を停止し前記熱可塑性材料を再固化させて、前記第1の物体と前記第2の物体との間にポジティブフィット接続を生じるステップとを備え、
設けられた前記第2の物体(2)が低密度の領域(22、204、205)を含み、前記突出部(9)が少なくとも部分的に、前記熱可塑性材料が流動可能になる前に前記低密度の領域(22、204、205)に貫入し、、該低密度の領域は繊維を含むかまたは繊維で構成され、前記第1の物体(1)が前記熱可塑性材料を再固化させるステップの後で突出部分(91)を含み、前記突出部分(91)は前記低密度の領域(22、204、205)に少なくとも部分的に貫入し、
前記方法はさらに、前記熱可塑性材料(3)の液化に必要な臨界密度が生成されるように、前記低密度の領域(22、204、205)を少なくとも局所的に圧縮するステップを備える、方法。 - 前記方法は、前記熱可塑性材料(3)の液化に必要な臨界圧縮強度が生成されるように、前記低密度の領域(22、204、205)の圧縮強度を少なくとも局所的に変えるステップを備える、請求項1に記載の方法。
- 設けられた前記第2の物体(2)は、前記近位面(4)からの距離の関数として増加する密度プロファイルを含み、前記遠位端部(6)は、前記熱可塑性材料が流動可能になる前に前記低密度の領域(22、204、205)に貫入する、請求項1または2に記載の方法。
- 設けられた前記第2の物体(2)は、近位最上層(200)を含み、前記低密度の領域(22、204、205)は、前記近位最上層(200)から遠位方向に配置されており、前記方法は、前記熱可塑性材料(3)の液化の前に前記突出部(9)に前記近位最上層(200)を通過させるステップを備える、請求項1から3のいずれか1項に記載の方法。
- 前記機械的励起を加えるステップは、前記近位面(4)に対する角度を有して延びる軸(8)に沿って機械的振動を加えることを含む、請求項1から4のいずれか1項に記載の方法。
- 第3の物体近位面(31)と第3の物体遠位面(32)とを含む第3の物体(30)を設けるステップをさらに備え、
前記第3の物体遠位面(32)が前記第2の物体(2)の前記近位面(4)と物理的に接触するように、前記第3の物体(30)を前記第2の物体(2)に対して配置するステップと、
前記熱可塑性材料(3)を液化可能な、および、前記熱可塑性材料(3)の前記流動可能な部分を前記第2の物体(2)の前記構造(10)に貫入させることが可能な前記機械的励起を加えるステップの前に、前記第1の物体(1)の少なくとも一部に、前記第3の物体(30)をその近位面(31)からその遠位面(32)に通過させるステップとをさらに備える、請求項1から5のいずれか1項に記載の方法。 - 前記第1の物体本体(7)は、前記第1の物体本体(7)の近位面(29)を含み、前記方法はさらに、第3の物体近位面(31)と第3の物体遠位面(32)とを含む第3の物体(30)を設けるステップと、前記第3の物体遠位面(32)が前記第1の物体本体(7)の前記近位面(29)と物理的に接触するように、前記第3の物体(30)を前記第1の物体(1)に対して配置するステップとを備える、請求項1から5のいずれか1項に記載の方法。
- 前記方法は、ソノトロード(20)を設けるステップと、前記第2の物体(2)が前記第1の物体(1)と前記ソノトロード(20)との間になるような態様で、前記方法の間に、前記第2の物体(2)の前記近位面(4)が前記少なくとも1つの突出部(9)と接触している、または前記少なくとも1つの突出部(9)と接触するように、前記第1の物体(1)と、前記第2の物体(2)と、前記ソノトロード(20)とを互いに配置するステップとを備える、請求項1から7のいずれか1項に記載の方法。
- 前記第2の物体(2)は、前記第2の物体(2)の所望の形状に適合された金型内に設けられており、前記機械的押圧力および前記機械的励起を加えるステップは、前記金型によって支持された前記第2の物体(2)上で行われる、請求項1から8のいずれか1項に記載の方法。
- 前記機械的押圧力を加えるステップは、第1の機械的押圧力および第2の機械的押圧力を加えることを含み、前記第1の機械的押圧力は前記第2の機械的押圧力よりも小さい、またはこれと等しい、請求項1から9のいずれか1項に記載の方法。
- 被接合部材(2)に接合される物体(1)であって、
前記物体(1)は、前記被接合部材(2)に面する遠位端部(6)と、該遠位端部(6)とは反対側の近位端部(5)との間に延在するとともに、物体本体(7)と、該物体本体(7)の前記被接合部材(2)に面する遠位側にある複数の突出部(9)を含み、
各前記突出部(9)の先端は前記遠位端部(6)を構成し、前記突出部(9)は固体状態の熱可塑性材料(3)を含み、
前記物体(1)は、前記被接合部材(2)に押し込まれたときに前記被接合部材(2)の局所的な圧縮を促進するように設計および配置された構造(24)を含み、
前記物体(1)は、前記物体本体(7)の遠位側に突起領域(90)を含み、該突起領域(90)は、前記複数の突出部(9)を含み、各前記突出部(9)は、遠位方向の伸長長さ(25)および厚さ(26)を含み、前記遠位方向の伸長長さ(25)と厚さ(26)との比率は、1以上であり、
前記突起領域(90)は、前記突出部(9)間のギャップ(27)をさらに含み、前記物体本体(7)の遠位側表面(28)は、前記突起領域の基部を形成し、前記突起領域(90)は、前記突起領域(90)の基部の表面積と、前記突起領域(90)の遠位方向の伸長長さとの積である全体積を有し、該全体積は、前記複数の突出部(9)の体積およびおよび前記ギャップ(27)の体積からなり、前記ギャップの体積(27)は前記複数の前記突出部(9)の体積よりも大きい、被接合部材に接合される物体。 - 前記突出部(9)は、先細形状であるとともに、先が尖った形状または切断構造を有し、前記突出部(9)の先端は稜線状または点状に尖った形状を有する、請求項11に記載の物体。
- 前記物体(1)はコネクタであり、該コネクタは、他の物体(40)を前記コネクタの前記近位端部(5)に取付けるように備え付けられている、請求項11または12に記載の物体。
- 前記突出部(9)は、周囲に前記熱可塑性材料(3)が配置された、該熱可塑性材料より硬い材料のコアで構成される、請求項11から13のいずれか1項に記載の物体。
- 前記物体は、第1の種類の突出部(33)と第2の種類の突出部(34)とを含み、前記第1の種類の前記突出部(33)は、前記被接合部材において固定されるために設計されており、前記第2の種類の前記突出部(34)は、前記被接合部材とは異なる第3の物体(30)において固定されるために設計されている、請求項11から14のいずれか1項に記載の物体。
- 熱可塑性材料を含む少なくとも1つの第1の種類の突出部と、熱可塑性材料を含む少なくとも1つの第2の種類の突出部とを有し、
前記第1の種類の突出部の遠位方向の延在部が前記第2の種類の突出部の遠位方向の対応する延在部よりも大きい、請求項11から15のいずれか1項に記載の物体。 - 前記物体は、捕獲用とげおよび/または引張用とげの形状のとげ(24)を含む、請求項16に記載の物体。
- 少なくとも1つの突出部は液化しないように設計された突出部を含む、請求項11から17のいずれか1項に記載の物体。
- 前記物体本体(7)の前記遠位側表面(28)は機能領域(50)を含み、前記機能領域は突出部を含まない、請求項11から18のいずれか1項に記載の物体。
- 破壊的な固有振動を避けることが可能な、
前記物体本体(7)の前記遠位側表面(28)に配置された減衰要素(52)と、
固定要素接続手段(110)を含む固定要素(1.1)および接続要素接続手段(120)を含む接続要素(1.2)であって、前記固定要素接続手段(110)と前記接続要素接続手段(120)とは、少なくとも前記固定要素(1.1)が前記被接合部材に固定されると前記接続要素接続手段(120)が前記固定要素接続手段(110)に堅固に接続されるような態様で互いに適合されている固定要素(1.1)および接続要素(1.2)と、
互いに離れている複数の突起領域(90)と、
物理特性において不均一の物体本体(7)との特徴のうち少なくとも1つを含む、請求項11から19のいずれか1項に記載の物体。 - 少なくとも1つの突出部(9)は突出軸(92)を備え、前記突出軸(92)は、前記物体本体(7)の前記遠位側表面(28)に対して直角ではない角度で延びる、請求項11から20のいずれか1項に記載の物体。
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