JP3645301B2

JP3645301B2 - Face-to-face engagement fastener member

Info

Publication number: JP3645301B2
Application number: JP02956195A
Authority: JP
Inventors: 伸二鳥越; 新一富永
Original assignee: ミネソタマイニングアンドマニュファクチャリングカンパニー
Priority date: 1995-02-17
Filing date: 1995-02-17
Publication date: 2005-05-11
Anticipated expiration: 2020-05-11
Also published as: JPH08238112A

Description

【０００１】
【産業上の利用分野】
本発明は、対面係合ファスナー部材に関する。
【０００２】
【従来の技術】
それぞれの基部の主要面に相互係合可能な係合手段を配設した一対の対面係合ファスナー部材を、各々の主要面を対向させて相互に圧着することにより、それらファスナー部材をそれぞれに固定した二物体を脱着可能に係着するファスナーは、多様な種類のものが知られている。その係合手段としては、フックとループとの組合せ、茸状の有頭突子とループとの組合せ、有頭突子同士、等、様々な形式のものが使用されている。
【０００３】
この種の対面係合ファスナー部材を物体の表面に固定する場合、一般に接着剤、感圧両面粘着テープ、ボルト、クリップ等の固定手段が使用される。従来、物体表面への固定作業を迅速に行うために、基部の主要面の反対側の裏面に接着剤や感圧両面粘着テープを被着したり、基部に別体の樹脂製クリップを溶接したり、基部に別体の金属製クリップをかしめて固着したりすることにより、物体表面への固定に先立って対面係合ファスナー部材と固定手段とを連結していた。
【０００４】
【発明が解決しようとする課題】
しかしながら、対面係合ファスナー部材の基部に固定手段を連結するための上記のような作業は、製造工程を煩雑にし、製造時間及びコストを増加させるだけでなく、手作業により連結の結果にばらつきを生じ易く、多数の対面係合ファスナー部材に均等な固定機能を付与できないという課題が生じていた。本願出願人は、そのような課題を解決できる関連技術として、特願平５−２２１２３４号明細書において、基部を成形する際に基部に一体的に連結された固定手段を備える対面係合ファスナー部材を開示している。
【０００５】
特願平５−２２１２３４号明細書に記載した対面係合ファスナー部材は、複数の有頭突子を備えた樹脂製対面係合ファスナー部材であって、固定手段は、対面係合ファスナー部材の射出成形工程において基部の成形時に基部に一体成形される。それにより、固定手段を基部に容易かつ正確に連結でき、多数の対面係合ファスナー部材に均等な固定機能を付与することができるという利点を有する。
【０００６】
例えば固定手段が、一端で基部に連結され他の自由端で所定間隙を介して基部の裏面に対向配置される延長部を備えたクリップ状部材からなる場合、基部と延長部との間の間隙に物体を挿入し、延長部の弾性復元力によって物体を挟持することにより、対面係合ファスナー部材が物体に固定される。しかしながら、仮に延長部の弾性復元力が充分に得られたとしても、物体が例えば金属板、特に表面塗装した鉄板や、ガラス板等の、平滑で摩擦抵抗の低い表面を有した高剛性材料からなる場合には、対面係合ファスナー部材を物体に固定したときに基部の裏面及び延長部の表面とそれらに接触する物体の各表面との間の摩擦が小さく、対面係合ファスナー部材が物体から容易に抜け落ちてしまう危惧がある。
【０００７】
本発明は、従来技術における前述の課題を解決するために鋭意、工夫改善を行ったものであり、その目的は、基部を物体表面に迅速かつ確実に固定でき、しかも多数の対面係合ファスナー部材に均等な固定機能を付与できる固定手段を備えた対面係合ファスナー部材を提供することにある。本発明のさらなる目的は、そのような固定手段を備えた対面係合ファスナー部材において、固定手段による物体への固定保持力を一層向上させることにある。
【０００８】
【課題を解決するための手段】
上記目的を達成するために、本発明は、主要面及び主要面の反対側の裏面を有した基部と、基部の主要面に設けられ、他のファスナー部材に係合可能な係合手段と、基部に設けられ、基部を物体に固定する固定手段とを具備した対面係合ファスナー部材において、固定手段は、裏面から先端を突出させて基部に形成され、少なくとも先端が弾性変形可能な突部と、一端で基部に連結され、他の自由端に隣接する部分で所定間隙を介して裏面に対向配置される弾性変形可能な延長部と、突部以外の部分で基部の裏面に設けられ、物体を保持したときに物体の表面に面接触可能な平坦面とを具備し、基部と延長部との間隙に物体を挿入したときに、延長部がその弾性復元力によって物体を突部及び平坦面に押し付け、それにより突部が弾性変形した状態で、物体を基部と延長部との間に保持することを特徴とする対面係合ファスナー部材を提供する。
【０００９】
この対面係合ファスナー部材では、基部の裏面が、突部に隣接して形成された凹部を備えることは有利である。さらに、突部の少なくとも裏面から突出する部分が、延長部の一端へ接近する方向へ傾斜して延びることが好ましい。
【００１０】
延長部が自由端に隣接して、基部の裏面に接近する方向へ隆起する隆起部を備えることが好ましい。さらに、突部の先端が、延長部の一端と隆起部との間の部分に対向して配置されることが望ましい。
【００１１】
このような構成は、係合手段が、基部の主要面から突出する脚部及び脚部の先端に連結される頭部を各々に備えて基部の主要面に離間配置で立設される複数の有頭突子からなる対面係合ファスナー部材に適用できる。
【００１３】
【作用】
物体を基部の裏面と延長部との間隙に挿入することにより、対面係合ファスナー部材が物体に固定される。このとき、延長部は物体により裏面から離れる方向へ押されて弾性変形し、同時に延長部の弾性復元力によって物体は裏面に接近する方向へ付勢される。その結果、突部は、物体に圧迫されて先端近傍部分が弾性変形する。この状態で物体は、突部と延長部とに接触する両表面において、突部及び延長部の弾性復元力を受け、それにより基部と延長部との間に強固に保持される。
【００１４】
基部の裏面に設けた平坦面は、物体の表面に面接触して対面係合ファスナー部材のがたつきを防止する。突部に隣接して形成した凹部は、突部の弾性変形を容易にする。突部が延長部の一端へ接近する方向へ傾斜していると、基部と延長部との間隙から物体を抜き取る力に対する抵抗力が増す。
【００１５】
延長部に設けた隆起部は、延長部の弾性変形を容易にする。隆起部は延長部の屈曲部分から容易に形成できる。突部の先端が、延長部の一端と隆起部との間の部分に対向していると、基部と延長部との間隙への物体の挿入が容易であり、間隙から物体を抜き取る力に対する抵抗力が増す。
【００１６】
【実施例】
以下、添付図面に示した好適な実施例に基づき、本発明をさらに詳細に説明する。各図において、同一又は類似の構成要素には共通の参照番号を付す。
図面を参照すると、図１及び図２（ａ）、（ｂ）は本発明の実施例による対面係合ファスナー部材１０を示す。対面係合ファスナー部材１０は、高分子材料の一体成形品からなり、略平坦な板状の基部１２と、基部１２に所定の離間配置で立設される複数の有頭突子１４とを備える。各有頭突子１４は、他のファスナー部材に係合可能な係合手段であり、基部１２の主要面１６から略直立状に突出する脚部１８と、脚部１８の先端に脚部１８の外周面から膨出する輪郭を有して形成される頭部２０とを備える。
【００１７】
なお、本発明に係る対面係合ファスナー部材は、このように基部と有頭突子とが高分子材料から一体成形されるものだけでなく、例えば布帛製又はポリプロピレン等のプラスチック製の基部と、基部に植設される複数の樹脂製モノフィラメントからなる有頭突子とを備えたものにも適用できる。（プラスチック製の基部とモノフィラメント有頭突子とを備えた対面係合ファスナー部材は、「デュアルロック」（３Ｍ社の商標名）として知られている。）また係合手段として、周知のフックアンドループ式ファスナーに用いられるフック又はループを有した対面係合ファスナー部材（「スコッチメイト」（３Ｍ社の商標名）として知られている）や、相互に噛合可能な突部と凹部との一方を有した対面係合ファスナー部材（特開昭６３−７１２０６号公報参照）にも、本発明を適用できる。
【００１８】
対面係合ファスナー部材１０は、基部１２を物体に固定する固定手段として、基部１２の裏面２２から先端を突出させて基部１２に一体成形される突部２４と、第１端で基部１２に一体的に連結され、第２自由端の近傍部分で所定間隙を介して裏面２２に対向配置される延長部２６とを備える。
【００１９】
突部２４は、対面係合ファスナー部材１０の成形工程において、基部１２の成形と同時に基部１２と同一の高分子材料から形成される。図１に示すように突部２４は、基部１２に連結される基端から裏面２２から突出する先端へ向かって徐々に薄肉になっている。また図２（ｂ）に示すように、突部２４は基部１２の長手方向全長に亙って連続して形成される。突部２４は弾性変形可能であり、その形状から特に先端に近い部分ほど容易に変形する。
【００２０】
延長部２６は、対面係合ファスナー部材１０の成形工程において、基部１２の成形と同時に基部１２と同一の高分子材料から成形される。延長部２６は、前述の第１端を有して基部１２の裏面２２に略直交して延びる連結部分２８と、前述の第２自由端を有して連結部分２８の下端から裏面２２に沿って延長される挟持部分３０とを備え、全体として弾性変形可能である。また図２（ｂ）に示すように、延長部２６は基部１２の長手方向全長に亙って連続して形成される。
【００２１】
図３に示すように、対面係合ファスナー部材１０は、例えば金属板やガラス板等の物体３２を、基部１２の裏面２２と延長部２６の挟持部分３０との間隙に挿入することにより、物体３２に固定される。このとき、挟持部分３０が物体３２により裏面２２から離れる方向へ押されて延長部２６が弾性変形し、同時に延長部２６の弾性復元力によって物体３２は裏面２２に接近する方向へ付勢される。その結果、突部２４は、物体３２に圧迫されて先端近傍部分が図示のように弾性変形する。この状態で物体３２は、裏面２２と挟持部分３０とに接触する両表面において、突部２４及び延長部２６の弾性復元力を受け、それにより基部１２と延長部２６との間に強固に保持される。
【００２２】
このような構成によれば、対面係合ファスナー部材１０を図３に示す固定位置から移動して物体３２から取り外そうとするときに、裏面２２と物体表面との間の摩擦力に突部２４の弾性復元力が付加された複合的抵抗力が作用するので、突部２４を有しないものに比べて取り外しにさらに大きな力が必要となる。すなわち、対面係合ファスナー部材１０を物体３２に固定保持する力が大きくなるのである。
【００２３】
対面係合ファスナー部材１０においては、図１に示すように基部１２の裏面２２は、固定対象の物体表面に対して充分な摩擦力を生じるように、物体表面に接触する面積がなるべく大きいことが好ましい。そこで、裏面２２の突部２４以外の部分を、同一平面上に配置される平坦面として形成することが好適である。このような構成によれば、基部１２と延長部２６との間に物体を保持したときに、裏面２２は所定圧力下で物体の表面に面接触できるので、物体に固定した対面係合ファスナー部材１０のがたつきを防止することも容易となる。
【００２４】
基部１２の裏面２２には、突部２４に隣接して凹部３４が形成されることが好ましい。凹部３４は、突部２４の弾性変形を容易にする作用を果たす。また好ましくは突部２４は、その基端から先端へ、延長部２６の連結部分２８から遠い側で連結部分２８に接近する方向へ傾斜して延びる表面３６と、連結部分２８に近い側で裏面２２に略直交して延びる表面３８とを有する。このような形状を有することにより、突部２４は延長部２６の連結部分２８に接近する方向へ変形し易く、その逆方向へは比較的変形し難くなるので、対面係合ファスナー部材１０を物体３２から取り外そうとする力に対する抵抗力がさらに大きくなる。
【００２５】
延長部２６の挟持部分３０には、物体３２を基部１２の裏面２２に押し付けるに充分な弾性復元力を得るために、裏面２２に接近する方向へ隆起する隆起部４０が形成される。隆起部４０は、例えば図示のように挟持部分３０の屈曲部分からなることができる。この場合、突部２４の先端が、延長部２６の連結部分２８と隆起部４０との間の挟持部分３０に対向して配置されるように、突部２４及び隆起部４０の位置を設定することが望ましい。このような構成によれば、基部１２と延長部２６の隆起部４０との間隙への物体３２の挿入が容易になるとともに、この間隙からの物体３２の抜き取りに対する抵抗力が高められる。
【００２６】
上記の対面係合ファスナー部材１０は、表面塗装した鉄板等の金属板や、ガラス板等の、平滑で摩擦抵抗の低い表面を有した高剛性材料からなる物体に対し、強固な固定保持力のもとに取り付けることができる。そのような物体としては、車両の本体パネルや窓ガラスがあげられる。特に、物体の厚みが基部１２の裏面２２と延長部２６の挟持部分３０に適合しさえすれば、対面係合ファスナー部材を取り付けるための穴等を物体に設ける必要がないので、所望の場所に所望個数の対面係合ファスナー部材１０を迅速に取り付けることができる。
【００２７】
対面係合ファスナー部材１０による物体への固定保持力の増強効果を明確にするために、１．６mmの厚みを有する鉄板からなる物体に、対面係合ファスナー部材１０と、突部２４及び凹部３４を省略して延長部２６のみを固定手段として備えた対面係合ファスナー部材とを取り付け、各対面係合ファスナー部材を物体から抜き取るに要した力をプッシュプルゲージで測定した。測定結果は、対面係合ファスナー部材１０では１０Ｎであり、延長部２６のみを固定手段として備えた対面係合ファスナー部材では５Ｎであった。なおこの試験において、対面係合ファスナー部材１０は、カーボンブラック含有の６−ナイロンを材料とし、基部１２の寸法が９mm（図２（ａ）の横方向）×２４mm（図２（ａ）の縦方向）×３mm（厚み）（ただし突部２４に関して延長部２６の連結部分２８から遠い側の裏面２２の横方向寸法が４mm）、裏面２２からの突部２４の突出長さが０．２mm、裏面２２と延長部２６の隆起部４０との間の距離が０．５mm、及び延長部２６の厚みが１．３mmの寸法諸元を有するものを使用した。
【００２８】
本発明に係る対面係合ファスナー部材は、上記以外の様々な形状を有することができる。例えば対面係合ファスナー部材１０の基部１２は、図２（ａ）に示す略矩形平面形状の他に、複数の有頭突子１４を固定的に保持可能な様々な寸法及び形状に形成することができる。なお基部１２の厚み（主要面１６と裏面２２との間の距離）は、０．５mm〜５．０mmの範囲にあることが好ましい。有頭突子１４の脚部１８は、円柱、角柱、円錐台等の多様な形状を有することができ、１つの頭部２０に対し複数個設けることもできる。頭部２０は、図示の半球状の他に、球状、錐体状、笠状等の様々な形状を有することができる。例えば、円柱状脚部１８と半球状頭部２０とを有する有頭突子１４において、脚部１８の直径は、係着相手のファスナー部材との充分な係着保持力を得るために、頭部２０の直径の２０％〜７０％の範囲にあることが好ましい。さらに、有頭突子１４の個数は、基部１２の主要面１６の面積で６．４５cm²当りに、５０個〜５００個であることが好ましい。
【００２９】
固定手段に関すれば、図４（ａ）に示すように、基部１２の裏面２２に複数の突部２４を形成することができる。それにより、対面係合ファスナー部材１０を物体から取り外そうとする力に対する突部２４による抵抗力が増加する。この場合、図４（ｂ）に示すように、突部２４が基部１２の長手方向へ部分的かつ分離して延びるように構成することにより、裏面２２と物体表面との接触面積を確保することもできる。また同様に、延長部２６も基部１２の長手方向へ部分的かつ分離して配置することができる。さらに、上記のような畝状の突部２４に限らず、１個以上の柱状の突部を用いることも本発明の範囲内である。その場合、柱状突部は図１の突部２４と同様の断面形状を有することが好ましい。また、全体に畝状や柱状の突部を多数設けた粗面として裏面を形成することにより、固定手段を構成することもできる。
【００３０】
図５に示すように、基部１２の裏面２２には、延長部２６の連結部分２８から遠い方の端縁部に隣接して、前述の凹部３４よりも大きな第２の凹部４２を設けることができる。第２の凹部４２は、基部１２の裏面２２と延長部２６の挟持部分３０との間隙に物体３２を挿入する際に、物体３２の挿入端を受け入れ（図６（ａ）参照）、裏面２２と挟持部分３０との間隙を拡大する延長部２６の弾性変形を円滑かつ容易に生じさせるように作用する。したがって第２の凹部４２は、突部２４（図示実施例では凹部３４）に至る面が図示のように円滑に延びることが好ましい。
【００３１】
さらにこの場合、突部２４と第２の凹部４２との間には、物体表面に対する支持及び摩擦の観点から裏面２２の一部分４４が残されることが望ましい。この部分４４は、物体表面に線接触する形状（図６（ｂ）参照）でも、物体表面に面接触する形状（図７参照）でもよい。同様に、延長部２６の連結部分２８から遠い方の基部１２の端縁部には、裏面２２の一部分４６が残されることが望ましい。この部分４６も、物体表面に線接触する形状（図７参照）でも、物体表面に面接触する形状（図６（ｂ）参照）でもよい。
【００３２】
また第２の凹部４２の代わりに、図８に示すように、延長部２６の連結部分２８から遠い方の基部１２の端縁部に薄肉部分４８を形成することもできる。このような薄肉部分４８によっても、対面係合ファスナー部材の物体への取付けを容易にすることができる。
【００３３】
図７に示すように、延長部２６の挟持部分３０に設けた隆起部４０は、挟持部分３０を部分的に厚肉にすることによっても形成できる。なお、基部１２の裏面２２と延長部２６の挟持部分３０との間隙への物体３２の挿入を容易にするために、隆起部４０は、挟持部分３０の屈曲部分からなる場合も厚肉部分からなる場合も、連結部分２８から離れた側の表面が図示のように円滑に延びることが望ましい。
【００３４】
さらに図７に示すように、突部２４は、基部１２の裏面２２の部分４４と延長部２６の隆起部４０との間隙寸法よりも長く、裏面２２から突出することができる。そのような構成によれば、部分４４と隆起部４０との間隙寸法より小さい厚みを有する物体にも、対面係合ファスナー部材を取り付けることが可能となる。裏面２２からの突部２４の突出長さは、突部２４の材料の弾性率や裏面２２と挟持部分３０との間隙寸法に対応して最適化されるが、好ましくは０．０１mm〜０．５mm、特に好ましくは０．０５mm〜０．３mmの範囲で選択される。突部２４の突出長さがこの範囲より小さいと、対面係合ファスナー部材を物体から取り外そうとする力に対する抵抗力が高まらない傾向があり、この範囲より大きいと物体に固定したときの対面係合ファスナー部材のがたつきを防止することが困難になる傾向がある。
【００３５】
上記各実施例では、突部２４は、基部１２の成形と同時に基部１２と同一の高分子材料から形成される構成とした。このような構成によれば、突部２４を容易に形成できるだけでなく、弾性変形を繰り返す突部２４の破壊強度が高水準に維持される。しかしながら、例えば別工程で成形された別体の突部を基部の成形時にインサートとして型内に配置し、基部に連結する構成とすることもできる。この場合、基部とは異なる材料から突部を形成できるので、基部等の対面係合ファスナー部材の他部分の弾性とは独立して突部の弾性の調整が容易となる。
【００３６】
同様に上記各実施例では、延長部２６は、基部１２の成形と同時に基部１２と同一の高分子材料から成形される構成とした。このような構成によれば、基部１２の材料及び延長部２６の寸法の選択により、基部１２と延長部２６との連結部位及び延長部全体の破壊強度を低減することなく、延長部全体の充分な弾性復元力を得ることが容易になる。しかしながら、例えば図９（ａ）、（ｂ）に示すように、延長部として基部とは別の材料からなる部材を使用することもできる。
【００３７】
図９（ａ）に示す対面係合ファスナー部材５０は、略平坦な板状の基部５２と、基部５２に所定の離間配置で立設される複数の有頭突子５４とを備える。各有頭突子５４は、基部５２の主要面５６から略直立状に突出する脚部５８と、脚部５８の末端に連結される頭部６０とを備える。さらに対面係合ファスナー部材５０は、基部５２を物体に固定する固定手段として、基部５２の裏面６２から先端を突出させて基部５２に一体成形される突部６４と、基部５２に固定的に連結される保持部材６６からなる延長部とを備える。なお突部６４は、図１の対面係合ファスナー部材１０における突部２４と同様の構成を有するものであり、説明は省略する。
【００３８】
保持部材６６は、図９（ｂ）に示すように、基部５２に埋設される支持部分６８と、支持部分６８の一縁部から支持部分６８に略直交して延びる連結部分７０と、連結部分７０の他端から支持部分６８に略平行に延びる挟持部分７２とを備える。保持部材６６は、好ましくは板金からプレス成形され、全体として弾性変形可能である。プレス成形により、例えば支持部分６８には複数の穴７４を、また挟持部分７２には係止爪７６を形成できる。保持部材６６は、対面係合ファスナー部材５０の成形工程において、基部５２を成形するための型内にインサートとして配置され、高分子材料から基部５２を成形することにより基部５２に一体的に連結される。このとき、支持部分６８に複数の穴７４を設けておけば、穴７４に高分子材料が侵入し、それにより保持部材６６が基部５２に強固に固定される。
【００３９】
対面係合ファスナー部材５０は、物体を基部５２の裏面６２と保持部材６６の挟持部分７２との間隙に挿入することにより、物体に固定される。このとき、挟持部分７２が物体により裏面６２から離れる方向へ押されて保持部材６６が弾性変形し、同時に保持部材６６の弾性復元力によって物体が裏面６２に接近する方向へ付勢される。その結果、突部６４は、物体に圧迫されて先端近傍部分が弾性変形する。この状態で物体は、裏面６２と挟持部分７２とに接触する両表面において、突部６４及び保持部材６６の弾性復元力を受け、それにより基部５２と保持部材６６との間に強固に保持される。このとき、挟持部分７２に係止爪７６を設けておけば、保持部材６６の弾性復元力が高められる。
【００４０】
このような構成によっても、対面係合ファスナー部材５０を物体から取り外そうとするときに、裏面６２と物体表面との間の摩擦力に突部６４の弾性復元力が付加された複合的抵抗力が作用するので、突部６４を有しないものに比べて取り外しにさらに大きな力が必要となる。すなわち、対面係合ファスナー部材５０を物体に固定保持する力が大きくなるのである。
【００４１】
本発明に係る対面係合ファスナー部材は、様々な材料から形成することができる。しかしながら本発明において、固定手段を構成する突部は、基部と延長部との間隙に物体を挿入したときに、少なくとも先端が容易に弾性変形する材料からなることが必要である。このような突部の材料に要求される曲げ弾性率は、好ましくは９８００Ｎ／cm²〜２４５０００Ｎ／cm²、特に好ましくは４９０００Ｎ／cm²〜１９６０００Ｎ／cm²の範囲である。突部の曲げ弾性率がこの範囲より小さいと、対面係合ファスナー部材を物体から取り外そうとする力に対する抵抗力が高まらない傾向があり、この範囲より大きいと物体に固定したときの対面係合ファスナー部材のがたつきを防止することが困難になる傾向がある。
【００４２】
このような曲げ弾性率を要求される突部を形成するために、基部の好適な材料として、ポリアミド（６−ナイロン、６，６−ナイロン等）、ポリプロピレン、ポリエチレン、アイオノマー、ポリアセタール、ポリエステル（ポリエチレンテレフタレート、ポリエチレンナフタレート等）、ポリフェニレンスルフィド、ポリエーテルケトン、ポリエーテルエステル、ポリエーテルサルフォン、ポリエーテルイミド、ポリサルフォン、ポリアリレートがあげられる。このうち特に好適な材料は、６−ナイロン、６，６−ナイロン、ポリプロピレンである。
【００４３】
またこのような樹脂材料に、カーボンブラック、グラスファイバー、酸化チタン、酸化鉄等の充填材を添加して、曲げ弾性率を好適な範囲に制御することもできる。特に好適な充填材はカーボンブラックである。この場合、カーボンブラックの含有量は、好ましくは１００重量部の樹脂に対して０．０１〜１０重量部、特に好ましくは１〜５重量部の範囲である。カーボンブラックの含有量がこの範囲より少ないと弾性率の制御が困難になる傾向があり、この範囲より多いとカーボンブラックによる潤滑効果が顕著になり、対面係合ファスナー部材を物体から取り外そうとする力に対する抵抗力が減少する傾向がある。
【００４４】
本発明に係る対面係合ファスナー部材は、様々な方法によって形成することができる。しかしながら、複雑形状の有頭突子群及び突部を基部に一体成形するために、米国特許第５，２４２，６４６号に開示される脚部型のような破壊的に脱離可能な型を使用した射出成形工程によって、基部、有頭突子、及び突部、並びに好ましくは延長部を、上記のような高分子材料から一体的に形成する方法が有利である。
【００４５】
【発明の効果】
以上の説明から明らかなように、本発明によれば、基部を物体表面に迅速かつ確実に固定でき、しかも多数の対面係合ファスナー部材に均等な固定機能を付与できる固定手段を備えた対面係合ファスナー部材が提供される。また、そのような固定手段を備えた対面係合ファスナー部材において、固定手段による物体への固定保持力が一層向上する。
【図面の簡単な説明】
【図１】本発明の実施例による対面係合ファスナー部材の正面図である。
【図２】図１の対面係合ファスナー部材の、（ａ）矢印ａから見た平面図、及び（ｂ）矢印ｂから見た側面図、である。
【図３】図１の対面係合ファスナー部材を物体に取り付けた状態で示す正面図である。
【図４】他の実施例による対面係合ファスナー部材の、（ａ）正面図、及び（ｂ）側面図、である。
【図５】さらに他の実施例による対面係合ファスナー部材の正面図である。
【図６】図５の対面係合ファスナー部材の物体への取り付け方法を説明する図で、（ａ）取り付けの初期段階を示す正面図、及び（ｂ）取り付け完了時の正面図、である。
【図７】さらに他の実施例による対面係合ファスナー部材の正面図である。
【図８】さらに他の実施例による対面係合ファスナー部材の正面図である。
【図９】さらに他の実施例による対面係合ファスナー部材の、（ａ）断面正面図、及び（ｂ）保持部材の斜視図、である。
【符号の説明】
１０、５０…対面係合ファスナー部材
１２、５２…基部
１４、５４…有頭突子
１６、５６…主要面
２２、６２…裏面
２４、６４…突部
２６、６６…延長部
２８、７０…連結部分
３０、７２…挟持部分
３４…凹部
４０…隆起部
４２…第２の凹部[0001]
[Industrial application fields]
The present invention relates to a facing engagement fastener member.
[0002]
[Prior art]
A pair of face-to-face engaging fastener members provided with engaging means that can be engaged with each other on the main surfaces of the respective base portions are fixed to each other by pressing each other with the main surfaces facing each other. Various types of fasteners that detachably attach the two objects are known. As the engaging means, various types such as a combination of a hook and a loop, a combination of a hook-shaped headed protrusion and a loop, and headed protrusions are used.
[0003]
When fixing this type of face-to-face engaging fastener member to the surface of an object, fixing means such as an adhesive, a pressure-sensitive double-sided adhesive tape, a bolt, and a clip are generally used. Conventionally, in order to quickly fix to the object surface, adhesive or pressure-sensitive double-sided adhesive tape is attached to the back side opposite to the main surface of the base, or a separate resin clip is welded to the base. Or by fastening a separate metal clip to the base and fixing the clip to the object surface prior to fixing to the object surface.
[0004]
[Problems to be solved by the invention]
However, the above-described operation for connecting the fixing means to the base portion of the face-to-face engagement fastener member not only complicates the manufacturing process and increases the manufacturing time and cost, but also results in variations in the connection result by manual operation. The problem that it is easy to occur and an equal fixing function cannot be provided to many face-to-face engaging fastener members has occurred. As a related technique for solving such a problem, the applicant of the present application disclosed in Japanese Patent Application No. 5-221234, a face-engaging fastener member provided with a fixing means integrally connected to the base when the base is molded. Is disclosed.
[0005]
The facing engagement fastener member described in the specification of Japanese Patent Application No. 5-221234 is a resin facing engagement fastener member having a plurality of headed protrusions, and the fixing means is injection of the facing engagement fastener member. In the molding process, the base is integrally formed with the base during molding. Thereby, the fixing means can be easily and accurately connected to the base portion, and there is an advantage that an equal fixing function can be given to a number of face-to-face engaging fastener members.
[0006]
For example, when the fixing means is formed of a clip-like member having an extension portion connected to the base portion at one end and opposed to the back surface of the base portion via a predetermined gap at the other free end, the gap between the base portion and the extension portion When the object is inserted into and the object is clamped by the elastic restoring force of the extension, the face-to-face engaging fastener member is fixed to the object. However, even if the elastic restoring force of the extension is sufficiently obtained, the object is made of a highly rigid material having a smooth and low frictional surface, such as a metal plate, particularly a surface-coated iron plate or a glass plate. In this case, when the facing engagement fastener member is fixed to the object, the friction between the back surface of the base and the surface of the extension portion and each surface of the object in contact with the surface is small, and the facing engagement fastener member is separated from the object. There is a risk of falling off easily.
[0007]
In order to solve the above-described problems in the prior art, the present invention has been devised and improved. The object of the present invention is to quickly and reliably fix the base portion to the object surface, and a number of face-to-face engaging fastener members. Another object of the present invention is to provide a face-to-face engaging fastener member provided with a fixing means capable of providing an equal fixing function. A further object of the present invention is to further improve the fixing holding force to the object by the fixing means in the face-to-face engaging fastener member provided with such fixing means.
[0008]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention includes a base portion having a main surface and a back surface opposite to the main surface, engagement means provided on the main surface of the base portion and engageable with other fastener members, In the face-to-face engaging fastener member provided on the base and having a fixing means for fixing the base to the object, the fixing means is formed on the base with the tip protruding from the back surface, and at least the protrusion that is elastically deformable at the tip An elastically deformable extension connected to the base at one end and opposed to the back surface through a predetermined gap at a portion adjacent to the other free end;A flat surface provided on the back surface of the base at a portion other than the projecting portion and capable of surface contact with the surface of the object when the object is heldWhen the object is inserted into the gap between the base and the extension, the extension projects the object by its elastic restoring force.And flat surfaceA face-to-face engaging fastener member is provided, wherein the object is held between a base portion and an extension portion in a state where the protrusion is elastically deformed.
[0009]
  In this face-to-face engagement fastener member, GroupIt is advantageous that the back surface of the part comprises a recess formed adjacent to the protrusion. Furthermore, it is preferable that at least a portion of the protrusion that protrudes from the back surface is inclined and extended in a direction approaching one end of the extension.
[0010]
  It is preferable that the extension portion is provided with a raised portion adjacent to the free end and raised in a direction approaching the back surface of the base portion.. TheFurthermore, it is desirable that the tip of the protrusion is disposed to face a portion between one end of the extension and the raised portion.
[0011]
  In such a configuration, the engaging means includes a leg portion projecting from the main surface of the base portion and a head portion connected to the tip of the leg portion, and a plurality of the engaging means are erected on the main surface of the base portion so as to be spaced apart from each other. Applicable to face-to-face engaging fasteners consisting of headed protrusions.
[0013]
[Action]
By inserting the object into the gap between the back surface of the base part and the extension part, the facing engagement fastener member is fixed to the object. At this time, the extension portion is pushed and elastically deformed by the object in a direction away from the back surface, and at the same time, the object is biased in the direction of approaching the back surface by the elastic restoring force of the extension portion. As a result, the protrusion is pressed by the object and the vicinity of the tip is elastically deformed. In this state, the object receives the elastic restoring force of the protrusion and the extension on both surfaces in contact with the protrusion and the extension, thereby being firmly held between the base and the extension.
[0014]
The flat surface provided on the back surface of the base portion is in surface contact with the surface of the object to prevent rattling of the face-to-face engaging fastener member. The recess formed adjacent to the protrusion facilitates elastic deformation of the protrusion. When the protrusion is inclined in a direction approaching one end of the extension, resistance to the force for extracting the object from the gap between the base and the extension increases.
[0015]
The raised portion provided in the extension portion facilitates elastic deformation of the extension portion. The raised portion can be easily formed from the bent portion of the extension. If the tip of the protrusion faces the part between one end of the extension and the raised part, it is easy to insert the object into the gap between the base and the extension, and resistance to the force to extract the object from the gap Power increases.
[0016]
【Example】
Hereinafter, the present invention will be described in more detail on the basis of preferred embodiments shown in the accompanying drawings. In each figure, the same or similar components are given common reference numerals.
Referring to the drawings, FIGS. 1 and 2 (a) and 2 (b) show a face-to-face engaging fastener member 10 according to an embodiment of the present invention. The face-to-face engaging fastener member 10 is made of an integrally molded product of a polymer material, and includes a substantially flat plate-like base portion 12 and a plurality of headed protrusions 14 erected on the base portion 12 with a predetermined spacing. . Each headed protrusion 14 is an engaging means that can be engaged with another fastener member, a leg portion 18 projecting substantially upright from the main surface 16 of the base portion 12, and a leg portion 18 at the tip of the leg portion 18. And a head 20 formed with a contour that bulges from the outer peripheral surface.
[0017]
In addition, the face-to-face engaging fastener member according to the present invention is not limited to a base and a headed protrusion that are integrally molded from a polymer material in this way, but a base made of plastic such as fabric or polypropylene, for example, The present invention can also be applied to a device provided with a headed protrusion made of a plurality of resin monofilaments implanted in the base. (A face-to-face engaging fastener member having a plastic base and a monofilament headed protrusion is known as “Dual Lock” (trade name of 3M Co.). A face-to-face engaging fastener member (known as “Scotch Mate” (trade name of 3M)) having a hook or loop used for a loop fastener, or one of a protrusion and a recess that can be engaged with each other. The present invention can also be applied to the facing engagement fastener member (see JP-A-63-71206).
[0018]
The face-engaging fastener member 10 is a fixing means for fixing the base 12 to an object, and a protrusion 24 that is integrally formed with the base 12 by projecting the tip from the back surface 22 of the base 12, and is integrated with the base 12 at the first end. And an extension portion 26 that is opposed to the back surface 22 with a predetermined gap in the vicinity of the second free end.
[0019]
The protrusion 24 is formed of the same polymer material as that of the base 12 simultaneously with the formation of the base 12 in the process of forming the face-to-face engaging fastener member 10. As shown in FIG. 1, the protrusion 24 gradually becomes thinner from the base end connected to the base 12 toward the tip protruding from the back surface 22. As shown in FIG. 2B, the protrusion 24 is continuously formed over the entire length of the base 12 in the longitudinal direction. The protrusion 24 can be elastically deformed, and the portion closer to the tip is easily deformed from its shape.
[0020]
The extension 26 is formed from the same polymer material as the base 12 at the same time as the base 12 is formed in the process of forming the face-to-face engaging fastener member 10. The extension portion 26 has the first end described above and extends substantially orthogonally to the back surface 22 of the base portion 12, and has the second free end described above and extends from the lower end of the connection portion 28 along the back surface 22. It is possible to elastically deform as a whole. Further, as shown in FIG. 2B, the extension 26 is continuously formed over the entire length of the base 12 in the longitudinal direction.
[0021]
As shown in FIG. 3, the face-to-face engagement fastener member 10 is formed by inserting an object 32 such as a metal plate or a glass plate into the gap between the back surface 22 of the base portion 12 and the sandwiching portion 30 of the extension portion 26. 32. At this time, the clamping portion 30 is pushed away from the back surface 22 by the object 32 and the extension portion 26 is elastically deformed. At the same time, the object 32 is urged toward the back surface 22 by the elastic restoring force of the extension portion 26. . As a result, the protrusion 24 is pressed by the object 32, and the vicinity of the tip is elastically deformed as shown. In this state, the object 32 receives the elastic restoring force of the protrusion 24 and the extension 26 on both surfaces contacting the back surface 22 and the sandwiching portion 30, thereby firmly holding between the base 12 and the extension 26. Is done.
[0022]
According to such a configuration, when the face-to-face engaging fastener member 10 is moved from the fixed position shown in FIG. 3 and is to be removed from the object 32, the protrusion is caused by the frictional force between the back surface 22 and the object surface. Since a composite resistance force to which 24 elastic restoring forces are added acts, a larger force is required for removal as compared with those having no protrusion 24. That is, the force for fixing and holding the facing engagement fastener member 10 to the object 32 is increased.
[0023]
In the face-to-face fastener member 10, as shown in FIG. 1, the back surface 22 of the base 12 has an area that contacts the object surface as large as possible so as to generate a sufficient frictional force against the object surface to be fixed. preferable. Therefore, it is preferable to form a portion other than the protrusion 24 on the back surface 22 as a flat surface arranged on the same plane. According to such a configuration, when the object is held between the base portion 12 and the extension portion 26, the back surface 22 can come into surface contact with the surface of the object under a predetermined pressure. It is also easy to prevent rattling of ten.
[0024]
A recess 34 is preferably formed on the back surface 22 of the base 12 adjacent to the protrusion 24. The recess 34 serves to facilitate elastic deformation of the protrusion 24. Preferably, the protrusion 24 has a surface 36 extending from the base end to the tip, extending in a direction approaching the connecting portion 28 on the side far from the connecting portion 28 of the extension portion 26, and a back surface on the side close to the connecting portion 28. 22 and a surface 38 extending generally perpendicular to the surface 22. By having such a shape, the protrusion 24 is easily deformed in the direction approaching the connecting portion 28 of the extension 26 and relatively difficult to deform in the opposite direction. The resistance to the force to be removed from 32 is further increased.
[0025]
In the sandwiching portion 30 of the extension portion 26, a protruding portion 40 that protrudes in a direction approaching the back surface 22 is formed in order to obtain an elastic restoring force sufficient to press the object 32 against the back surface 22 of the base portion 12. The raised portion 40 can be formed of a bent portion of the sandwiching portion 30 as shown in the figure, for example. In this case, the positions of the protrusions 24 and the raised portions 40 are set so that the tips of the protruding portions 24 are arranged to face the sandwiching portion 30 between the connecting portion 28 of the extension portion 26 and the raised portions 40. It is desirable. According to such a configuration, the object 32 can be easily inserted into the gap between the base portion 12 and the raised portion 40 of the extension portion 26, and the resistance force against the extraction of the object 32 from the gap can be increased.
[0026]
The face-to-face engaging fastener member 10 has a strong fixing and holding force against an object made of a high-rigidity material having a smooth surface with low frictional resistance, such as a surface-coated metal plate such as an iron plate or a glass plate. Can be attached to the original. Examples of such an object include a vehicle body panel and a window glass. In particular, as long as the thickness of the object conforms to the back surface 22 of the base portion 12 and the sandwiching portion 30 of the extension portion 26, it is not necessary to provide a hole or the like for attaching the face-to-face engaging fastener member in the object. A desired number of face-to-face engaging fastener members 10 can be quickly attached.
[0027]
In order to clarify the effect of enhancing the fixing and holding force to the object by the face-engaging fastener member 10, the face-engaging fastener member 10, the protrusion 24, and the recess 34 are formed on an object made of an iron plate having a thickness of 1.6 mm. And a facing engagement fastener member provided with only the extension 26 as a fixing means was attached, and the force required to extract each facing engagement fastener member from the object was measured with a push-pull gauge. The measurement result was 10 N for the face-engaged fastener member 10 and 5 N for the face-engaged fastener member provided with only the extension 26 as a fixing means. In this test, the face-engaging fastener member 10 is made of carbon black-containing 6-nylon, and the dimension of the base 12 is 9 mm (horizontal direction in FIG. 2A) × 24 mm (vertical length in FIG. 2A). Direction) × 3 mm (thickness) (however, the lateral dimension of the back surface 22 on the side far from the connecting portion 28 of the extension 26 with respect to the protrusion 24 is 4 mm), the protrusion length of the protrusion 24 from the back surface 22 is 0.2 mm, The distance between the back surface 22 and the raised portion 40 of the extension 26 is 0.5 mm, and the thickness of the extension 26 is 1.3 mm.
[0028]
The facing engagement fastener member according to the present invention can have various shapes other than those described above. For example, the base 12 of the face-to-face engaging fastener member 10 is formed in various sizes and shapes that can hold a plurality of headed protrusions 14 in addition to the substantially rectangular planar shape shown in FIG. Can do. The thickness of the base 12 (the distance between the main surface 16 and the back surface 22) is preferably in the range of 0.5 mm to 5.0 mm. The leg portion 18 of the headed protrusion 14 may have various shapes such as a cylinder, a prism, and a truncated cone, and a plurality of the leg portions 18 may be provided for one head 20. The head 20 can have various shapes such as a spherical shape, a cone shape, and a shade shape in addition to the illustrated hemispherical shape. For example, in the headed protrusion 14 having the columnar leg portion 18 and the hemispherical head portion 20, the diameter of the leg portion 18 is set so that a sufficient engaging holding force with the engaging fastener member is obtained. It is preferably in the range of 20% to 70% of the diameter of the portion 20. Further, the number of the headed protrusions 14 is 6.45 cm in terms of the area of the main surface 16 of the base 12.²It is preferable that the number is 50 to 500 per hit.
[0029]
As for the fixing means, as shown in FIG. 4A, a plurality of protrusions 24 can be formed on the back surface 22 of the base 12. Thereby, the resistance force by the protrusion 24 with respect to the force which is going to remove the facing engagement fastener member 10 from an object increases. In this case, as shown in FIG. 4B, the projecting portion 24 is configured to extend partially and separately in the longitudinal direction of the base portion 12, thereby ensuring a contact area between the back surface 22 and the object surface. You can also. Similarly, the extension 26 can also be arranged partially and separately in the longitudinal direction of the base 12. Furthermore, it is within the scope of the present invention to use one or more columnar protrusions in addition to the hook-shaped protrusion 24 as described above. In that case, the columnar protrusion preferably has a cross-sectional shape similar to that of the protrusion 24 in FIG. Further, the fixing means can be configured by forming the back surface as a rough surface provided with a large number of hook-like or columnar protrusions on the whole.
[0030]
As shown in FIG. 5, the back surface 22 of the base portion 12 is provided with a second recess 42 larger than the above-described recess 34 adjacent to the edge of the extension 26 far from the connecting portion 28. it can. The second recess 42 receives the insertion end of the object 32 when the object 32 is inserted into the gap between the back surface 22 of the base portion 12 and the sandwiching portion 30 of the extension portion 26 (see FIG. 6A). It acts so that the elastic deformation of the extension part 26 that enlarges the gap between the holding part 30 and the holding part 30 is caused smoothly and easily. Therefore, it is preferable that the surface of the second recess 42 reaching the protrusion 24 (the recess 34 in the illustrated embodiment) extends smoothly as illustrated.
[0031]
Further, in this case, it is desirable that a portion 44 of the back surface 22 is left between the protrusion 24 and the second recess 42 from the viewpoint of support and friction with respect to the object surface. The portion 44 may have a shape that makes line contact with the object surface (see FIG. 6B) or a shape that makes surface contact with the object surface (see FIG. 7). Similarly, it is desirable that a portion 46 of the back surface 22 is left at the edge of the base portion 12 far from the connecting portion 28 of the extension portion 26. The portion 46 may also have a shape that makes line contact with the object surface (see FIG. 7) or a shape that makes surface contact with the object surface (see FIG. 6B).
[0032]
Further, instead of the second concave portion 42, as shown in FIG. 8, a thin portion 48 can be formed at the edge portion of the base portion 12 far from the connecting portion 28 of the extension portion 26. Such a thin portion 48 can also facilitate attachment of the face-to-face engaging fastener member to the object.
[0033]
As shown in FIG. 7, the raised portion 40 provided in the sandwiching portion 30 of the extension 26 can also be formed by partially thickening the sandwiching portion 30. In order to facilitate the insertion of the object 32 into the gap between the back surface 22 of the base portion 12 and the sandwiching portion 30 of the extension portion 26, the raised portion 40 is formed from a thick portion even when it is composed of a bent portion of the sandwiching portion 30. In this case, it is desirable that the surface on the side away from the connecting portion 28 extends smoothly as shown.
[0034]
Further, as shown in FIG. 7, the protrusion 24 is longer than the gap dimension between the portion 44 of the back surface 22 of the base portion 12 and the raised portion 40 of the extension portion 26, and can protrude from the back surface 22. According to such a configuration, it is possible to attach the face-to-face engaging fastener member to an object having a thickness smaller than the gap dimension between the portion 44 and the raised portion 40. The protrusion length of the protrusion 24 from the back surface 22 is optimized in accordance with the elastic modulus of the material of the protrusion 24 and the gap size between the back surface 22 and the sandwiching portion 30, but preferably 0.01 mm to 0. It is selected in the range of 5 mm, particularly preferably 0.05 mm to 0.3 mm. If the protrusion length of the protrusion 24 is smaller than this range, the resistance to the force to remove the face-engaging fastener member from the object tends not to increase. It tends to be difficult to prevent rattling of the engaging fastener member.
[0035]
In each of the above embodiments, the protrusion 24 is formed of the same polymer material as that of the base 12 simultaneously with the molding of the base 12. According to such a configuration, not only can the protrusion 24 be easily formed, but also the fracture strength of the protrusion 24 that repeats elastic deformation is maintained at a high level. However, for example, a separate protrusion formed in a separate process may be disposed in the mold as an insert when the base is formed, and connected to the base. In this case, since the protrusion can be formed from a material different from that of the base, it is easy to adjust the elasticity of the protrusion independently of the elasticity of the other portion of the face-to-face engaging fastener member such as the base.
[0036]
Similarly, in each of the above embodiments, the extension 26 is formed from the same polymer material as that of the base 12 at the same time as the base 12 is formed. According to such a configuration, the material of the base portion 12 and the size of the extension portion 26 can be selected so that the connection portion between the base portion 12 and the extension portion 26 and the breaking strength of the entire extension portion are not reduced, and the entire extension portion can be sufficiently obtained. It becomes easy to obtain a strong elastic restoring force. However, as shown in FIGS. 9A and 9B, for example, a member made of a material different from the base can be used as the extension.
[0037]
The facing engagement fastener member 50 shown in FIG. 9A includes a substantially flat plate-like base portion 52 and a plurality of headed protrusions 54 erected on the base portion 52 at a predetermined spacing. Each headed protrusion 54 includes a leg portion 58 that protrudes substantially upright from the main surface 56 of the base portion 52, and a head portion 60 that is connected to the end of the leg portion 58. Further, the face-to-face engaging fastener member 50 is fixedly connected to the base 52 and a protrusion 64 that is integrally formed with the base 52 by protruding the tip from the back surface 62 of the base 52 as a fixing means for fixing the base 52 to the object. And an extending portion made of a holding member 66. The protrusion 64 has the same configuration as the protrusion 24 in the face-to-face engaging fastener member 10 of FIG.
[0038]
As shown in FIG. 9B, the holding member 66 includes a support portion 68 embedded in the base portion 52, a connection portion 70 that extends from one edge of the support portion 68 substantially orthogonally to the support portion 68, and a connection portion. And a sandwiching portion 72 extending substantially parallel to the support portion 68 from the other end of 70. The holding member 66 is preferably press-molded from sheet metal and is elastically deformable as a whole. By press molding, for example, a plurality of holes 74 can be formed in the support portion 68, and a locking claw 76 can be formed in the clamping portion 72. The holding member 66 is disposed as an insert in a mold for molding the base 52 in the molding process of the face-to-face engaging fastener member 50, and is integrally connected to the base 52 by molding the base 52 from a polymer material. The At this time, if a plurality of holes 74 are provided in the support portion 68, the polymer material enters the holes 74, whereby the holding member 66 is firmly fixed to the base portion 52.
[0039]
The face-to-face engaging fastener member 50 is fixed to the object by inserting the object into the gap between the back surface 62 of the base portion 52 and the clamping portion 72 of the holding member 66. At this time, the clamping portion 72 is pushed away from the back surface 62 by the object, and the holding member 66 is elastically deformed, and at the same time, the object is biased in the direction approaching the back surface 62 by the elastic restoring force of the holding member 66. As a result, the protrusion 64 is pressed by the object, and the vicinity of the tip is elastically deformed. In this state, the object receives the elastic restoring force of the protrusion 64 and the holding member 66 on both surfaces contacting the back surface 62 and the sandwiching portion 72, thereby being firmly held between the base 52 and the holding member 66. The At this time, if the latching claw 76 is provided in the clamping portion 72, the elastic restoring force of the holding member 66 is increased.
[0040]
Even in such a configuration, when the facing engagement fastener member 50 is to be removed from the object, the combined resistance in which the elastic restoring force of the protrusion 64 is added to the frictional force between the back surface 62 and the object surface. Since a force acts, a larger force is required for removal as compared with the case having no protrusion 64. That is, a force for fixing and holding the facing engagement fastener member 50 to the object is increased.
[0041]
The facing engagement fastener member according to the present invention can be formed from various materials. However, in the present invention, the projecting portion constituting the fixing means needs to be made of a material that at least the tip is easily elastically deformed when an object is inserted into the gap between the base portion and the extending portion. The flexural modulus required for such protrusion material is preferably 9800 N / cm.²~ 245000N / cm², Particularly preferably 49000 N / cm²~ 196000N / cm²Range. If the bending elastic modulus of the protrusion is smaller than this range, the resistance to the force to remove the face-to-face engaging fastener member from the object tends not to increase. It tends to be difficult to prevent rattling of the combined fastener member.
[0042]
In order to form protrusions that require such flexural modulus, polyamide (6-nylon, 6,6-nylon, etc.), polypropylene, polyethylene, ionomer, polyacetal, polyester (polyethylene) are suitable as the base material. Terephthalate, polyethylene naphthalate, etc.), polyphenylene sulfide, polyether ketone, polyether ester, polyether sulfone, polyether imide, polysulfone and polyarylate. Among these, 6-nylon, 6,6-nylon, and polypropylene are particularly preferable materials.
[0043]
In addition, a filler such as carbon black, glass fiber, titanium oxide, and iron oxide can be added to such a resin material to control the flexural modulus within a suitable range. A particularly preferred filler is carbon black. In this case, the carbon black content is preferably 0.01 to 10 parts by weight, particularly preferably 1 to 5 parts by weight, based on 100 parts by weight of the resin. If the carbon black content is less than this range, the elastic modulus tends to be difficult to control. There is a tendency for the resistance to the force to decrease.
[0044]
The facing engagement fastener member according to the present invention can be formed by various methods. However, in order to integrally form the complex-shaped headed protrusions and protrusions into the base, a destructively removable mold such as the leg mold disclosed in US Pat. No. 5,242,646 is used. Depending on the injection molding process used, it is advantageous to integrally form the base, the headed protrusion and the protrusion, and preferably the extension, from the polymeric material as described above.
[0045]
【The invention's effect】
As is apparent from the above description, according to the present invention, the face-to-face engagement is provided with a fixing means that can quickly and reliably fix the base to the object surface and can provide an equal fixing function to a number of face-engaging fastener members. A combined fastener member is provided. Moreover, in the facing engagement fastener member provided with such a fixing means, the fixing holding force to the object by the fixing means is further improved.
[Brief description of the drawings]
FIG. 1 is a front view of a face-to-face engaging fastener member according to an embodiment of the present invention.
2A is a plan view of a facing engagement fastener member of FIG. 1 as viewed from an arrow a, and FIG.
3 is a front view showing a state in which the facing engagement fastener member of FIG. 1 is attached to an object.
4A is a front view and FIG. 4B is a side view of a facing engagement fastener member according to another embodiment. FIG.
FIG. 5 is a front view of a face-fitting fastener member according to still another embodiment.
6A and 6B are diagrams for explaining a method of attaching the face-engaging fastener member of FIG. 5 to an object, (a) a front view showing an initial stage of attachment, and (b) a front view when the attachment is completed.
FIG. 7 is a front view of a face-fitting fastener member according to still another embodiment.
FIG. 8 is a front view of a face-fitting fastener member according to still another embodiment.
9A is a cross-sectional front view of a facing engagement fastener member according to still another embodiment, and FIG. 9B is a perspective view of a holding member.
[Explanation of symbols]
10, 50 ... Face-to-face engagement fastener member
12, 52 ... Base
14, 54 ...
16, 56 ... main surface
22, 62 ... back side
24, 64 ... Projection
26, 66 ... Extension
28, 70 ... connection part
30, 72 ... clamping part
34 ... recess
40 ... Uplift
42 ... second recess

Claims

A base portion having a main surface and a back surface opposite to the main surface; engagement means provided on the main surface of the base portion and engageable with another fastener member; and provided on the base portion. In the face-to-face engaging fastener member comprising a fixing means for fixing to an object,
The fixing means includes
A protrusion protruding from the back surface is formed on the base, and at least the protrusion that is elastically deformable at the tip,
An elastically deformable extension portion connected to the base portion at one end and disposed opposite to the back surface through a predetermined gap at a portion adjacent to the other free end ;
A flat surface provided on the back surface of the base at a portion other than the protrusion and capable of being in surface contact with the surface of the object when the object is held ;
When an object is inserted into the gap between the base and the extension, the extension presses the object against the protrusion and the flat surface by its elastic restoring force, so that the protrusion is elastically deformed. Holding the object between the base and the extension;
A face-to-face engaging fastener member.

The facing engagement fastener member according to claim 1, wherein the back surface of the base includes a recess formed adjacent to the protrusion .

The facing engagement fastener member according to claim 1 or 2 , wherein at least a portion of the projecting portion that protrudes from the back surface is inclined and extends in a direction approaching the one end of the extension portion .

The facing engagement fastener member according to any one of claims 1 to 3, wherein the extension portion includes a protruding portion that is adjacent to the free end and protrudes in a direction approaching the back surface of the base portion .

The facing engagement fastener member according to claim 4 , wherein the tip of the protrusion is disposed to face a portion between the one end of the extension and the raised portion .

The engaging means includes a leg portion protruding from the main surface of the base portion and a head portion connected to a tip end of the leg portion, and a plurality of the engaging means are erected on the main surface of the base portion so as to be separated from each other. The facing engagement fastener member according to any one of claims 1 to 5, comprising a headed protrusion.