JP4636027B2 - フィルタ及びその製造方法 - Google Patents
フィルタ及びその製造方法 Download PDFInfo
- Publication number
- JP4636027B2 JP4636027B2 JP2007005102A JP2007005102A JP4636027B2 JP 4636027 B2 JP4636027 B2 JP 4636027B2 JP 2007005102 A JP2007005102 A JP 2007005102A JP 2007005102 A JP2007005102 A JP 2007005102A JP 4636027 B2 JP4636027 B2 JP 4636027B2
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- case member
- filter medium
- filter
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Description
上記特許文献1には、下部カバー部材16に設けたスパイク56を濾過媒体20の縁部に貫通させると共に、下部カバー部材16のスパイク56の外側に設けたリブ60を振動処理により溶融させて上部カバー部材14及び下部カバー部材16を一体化することが開示されている。しかし、この特許文献1では、振動溶着を採用しているので、各ケース部材の成形直後に溶着を実施することが困難であり生産効率が悪く、さらにカバー部材の形状等に制約があり設計自由度が低いといった問題があった。
上記特許文献2には、照射方向Xからのレーザ光の照射によって上側ケース構成部材7及び下側ケース構成部材9を溶着し、照射方向Yからのレーザ光の照射によって下側ケース構成部材9及びフィルタエレメント5を溶着してなるフィルタが開示されている。これにより、ケース部材にフィルタエレメントを安定的に溶着してフィルタ使用時のフィルタエレメントの抜けを抑制できる。
また、上記特許文献2では、異なる照射方向X,Yからの2回のレーザ光の照射が必要であり、コストやサイクルタイムを増加させてしまう。
1.互いに突き合されて濾過室を形成する第1ケース部材及び第2ケース部材と、
前記第1ケース部材及び前記第2ケース部材の間に端部が挟持される濾材と、を備え、
前記第1ケース部材及び前記第2ケース部材のそれぞれは、前記濾材の端部を屈曲させて挟持する挟持部と、該挟持部から離れた位置に設けられ且つレーザ光により溶着される溶着部と、を有しており、
前記挟持部は、前記濾材の内側端部を前記第1ケース部材及び前記第2ケース部材の突合せ方向に押圧する縦押圧面と、前記濾材の外側端部を該突合せ方向に交差する方向に押圧する横押圧面と、を有しており、
前記第1ケース部材及び前記第2ケース部材のうちの一方のケース部材の周縁側には、前記突合せ方向に延びる凸部が設けられており、他方のケース部材の周縁側には、該突合せ方向に延び且つ該凸部が嵌合する凹部が設けられており、前記挟持部は、該凸部及び該凹部の嵌合部位の濾過室側に設けられており、
前記凸部及び前記凹部の嵌合部位の反濾過室側には、前記突合せ方向に交差する方向に延びて互いに当接するテーパ状の当接面が形成され、該当接面には前記溶着部が設けられていることを特徴とするフィルタ。
2.前記横押圧面は、前記突合せ方向に延びて形成されている上記1.記載のフィルタ。
3.前記濾材の表面には格子状ネットが設けられており、前記縦押圧面には、該格子状ネットの網目に入り込む突起部が設けられている上記1.又は2.に記載のフィルタ。
4.上記1.乃至3.のいずれか一項に記載のフィルタの製造方法であって、
前記第1ケース部材及び前記第2ケース部材を互いに突き合せて、前記挟持部によって前記濾材の端部を屈曲させて挟持する工程と、
その挟持状態より、前記第1ケース部材及び前記第2ケース部材のうちの一方のケース部材を介して他方のケース部材に向かってレーザ光を照射して前記溶着部を形成して前記第1ケース部材及び前記第2ケース部材を接合する工程と、を備え、
前記挟持する工程では、前記縦押圧面によって、前記濾材の内側端部が前記突合せ方向に押圧されると共に、前記横押圧面によって、前記濾材の外側端部が前記突合せ方向に交差する方向に押圧されることを特徴とするフィルタの製造方法。
また、一方のケース部材の周縁側には凸部が設けられており、他方のケース部材の周縁側には凹部が設けられており、前記挟持部が、該凸部及び該凹部の嵌合部位の濾過室側に設けられており、前記溶着部が、該凸部及び該凹部の嵌合部位の反濾過室側に設けられている場合は、凸部及び凹部の嵌合によって、レーザ光による溶着時の機械的接合力を高めて、第1及び第2ケース部材の反りを抑制して両ケース部材をより確実に接合することができる。また、挟持部と溶着部とを十分に離れた位置に設けることができ、レーザ光による溶融熱が濾材に伝わることをより確実に抑制できる。
また、前記凸部及び前記凹部のそれぞれが、互いに当接するテーパ状の当接面を有している場合は、凸部及び凹部の嵌合部位において溶着部の反りにより発生する隙間を低減して溶着強度を安定化できる。
本実施形態1.に係るフィルタは、以下に述べる第1ケース部材、第2ケース部材及び濾材を備えている。
なお、上記レーザ光は、通常、レーザ透過性を有する一方のケース部材を介して、レーザ吸収性を有する他方のケース部材に向かって照射され、他方のケース部材の被溶着部が溶融されて、その溶融熱によって一方のケース部材の被溶着部が溶融されて、両ケース部材の間に溶着部が形成されることとなる。また、上記レーザ光の種類としては、例えば、半導体、気体、固体、液体レーザ光等を挙げることができる。
(1)凸部13及び凹部14の嵌合部位の濾過室側には突合せ方向Pに延びる上記横押圧面15b,16bが形成され、凸部13及び凹部14の嵌合部位の反濾過室側には突合せ方向Pと交差する方向に延びるテーパ状の当接面20,21が形成されている形態(図2参照)。
(2)凸部13及び凹部14の嵌合部位の濾過室側には突合せ方向Pと交差する方向に延びる上記横押圧面15b,16bが形成され、凸部13及び凹部14の嵌合部位の反濾過室側には突合せ方向Pと交差する方向に延びるテーパ状の当接面20,21が形成されている形態(図7参照)。
(3)凸部13及び凹部14の嵌合部位の濾過室側には突合せ方向Pに延びる上記横押圧面15b,16bが形成され、凸部13及び凹部14の嵌合部位の反濾過室側には突合せ方向に延びる当接面20,21が形成されている形態(図8参照)。
(4)凸部及び凹部の嵌合部位の濾過室側には突合せ方向と交差する方向に延びる上記横押圧面が形成され、凸部及び凹部の嵌合部位の反濾過室側には突合せ方向に延びる当接面が形成されている形態。
これらのうち、濾材の抜けをより確実に抑制でき且つレーザ溶着時の機械的接合力をより高め得るといった観点から、上記(1)形態であることが好ましい。
上記格子状ネットの材質としては、例えば、ポリエチレン等の合成樹脂、ステンレス、鉄等の金属材料等を挙げることができる。
本実施形態2.に係るフィルタの製造方法は、上記実施形態1.で説明したフィルタの製造方法であって、上記第1及び第2ケース部材を互いに突き合せて、上記挟持部によって濾材の端部を屈曲させて挟持する工程と、その挟持状態より、一方のケース部材を介して他方のケース部材に向ってレーザ光を照射して溶着部を形成して第1及び第2ケース部材を接合する工程と、を備えることを特徴とする。
本実施例に係るフィルタ1は、図1に示すように、互いに突き合されて濾過室2を形成する上側ケース部材3(本発明に係る「第1ケース部材」として例示する。)及び下側ケース部材4(本発明に係る「第2ケース部材」として例示する。)と、これら上側及び下側ケース部材3,4の間にその端部12が挟持される濾材5と、を備えている。
次に、上記フィルタ1の製造方法について説明する。
先ず、図4に示すように、上側及び下側ケース部材3,4を、それらの凸部13及び凹部14の間に濾材5の端部12を挟んで互いに突き合わせる。すると、図5に示すように、挟持部15,16によって濾材5の端部12が直角に屈曲されて挟持される。そして、縦押圧面15a,16aによって、濾材5の内側端部12aが突合せ方向Pに押圧されて圧縮されると共に、横押圧面15b,16bによって、濾材5の外側端部12bが突合せ方向Pに直交する方向に押圧されて圧縮される。その後、その突き合わされた上側及び下側ケース部材3,4を突合せ方向Pに加圧Fした状態で、所定の照射範囲のレーザ光Lを、下側ケース部材4を介して上側ケース部材3に向かって照射する。すると、図2に示すように、上側ケース部材3の被溶着部が溶融され、その溶融熱によって下側ケース部材4の被溶着部が溶融されて、両ケース部材3,4の間に溶着部22,23が形成される。その結果、両ケース部材3,4が接合されてフィルタ1が得られる。
以上より、本実施例のフィルタ1によると、濾材5の端部12を挟持する挟持部15,16と、レーザ光Lにより溶着される溶着部22,23とが離れた位置に設けられているので、レーザ光による溶融熱が濾材5に伝わり難く濾材5の形状、材質等に影響を与えない。また、濾材5の端部12は、挟持部15,16により屈曲された状態で挟持されると共に、濾材5の内側端部12aが縦押圧面15a,16aにより突合せ方向Pに押圧され且つ濾材5の外側端部12bが横押圧面15b,16bにより突合せ方向Pに直交する方向に押圧されるので、フィルタ使用時に上側ケース部材3にオイルの流れによりケースを押し広げる方向に力が作用しても、上側及び下側ケース部材3,4の間に濾材5を強固に支持でき、フィルタ使用時の濾材5の抜けを抑制できる。また、1回のレーザ光Lの照射によって上側及び下側ケース部材3,4を接合でき、安価且つ簡易な構成のフィルタ1を提供できる。
Claims (4)
- 互いに突き合されて濾過室を形成する第1ケース部材及び第2ケース部材と、
前記第1ケース部材及び前記第2ケース部材の間に端部が挟持される濾材と、を備え、
前記第1ケース部材及び前記第2ケース部材のそれぞれは、前記濾材の端部を屈曲させて挟持する挟持部と、該挟持部から離れた位置に設けられ且つレーザ光により溶着される溶着部と、を有しており、
前記挟持部は、前記濾材の内側端部を前記第1ケース部材及び前記第2ケース部材の突合せ方向に押圧する縦押圧面と、前記濾材の外側端部を該突合せ方向に交差する方向に押圧する横押圧面と、を有しており、
前記第1ケース部材及び前記第2ケース部材のうちの一方のケース部材の周縁側には、前記突合せ方向に延びる凸部が設けられており、他方のケース部材の周縁側には、該突合せ方向に延び且つ該凸部が嵌合する凹部が設けられており、前記挟持部は、該凸部及び該凹部の嵌合部位の濾過室側に設けられており、
前記凸部及び前記凹部の嵌合部位の反濾過室側には、前記突合せ方向に交差する方向に延びて互いに当接するテーパ状の当接面が形成され、該当接面には前記溶着部が設けられていることを特徴とするフィルタ。 - 前記横押圧面は、前記突合せ方向に延びて形成されている請求項1記載のフィルタ。
- 前記濾材の表面には格子状ネットが設けられており、前記縦押圧面には、該格子状ネットの網目に入り込む突起部が設けられている請求項1又は2に記載のフィルタ。
- 請求項1乃至3のいずれか一項に記載のフィルタの製造方法であって、
前記第1ケース部材及び前記第2ケース部材を互いに突き合せて、前記挟持部によって前記濾材の端部を屈曲させて挟持する工程と、
その挟持状態より、前記第1ケース部材及び前記第2ケース部材のうちの一方のケース部材を介して他方のケース部材に向かってレーザ光を照射して前記溶着部を形成して前記第1ケース部材及び前記第2ケース部材を接合する工程と、を備え、
前記挟持する工程では、前記縦押圧面によって、前記濾材の内側端部が前記突合せ方向に押圧されると共に、前記横押圧面によって、前記濾材の外側端部が前記突合せ方向に交差する方向に押圧されることを特徴とするフィルタの製造方法。
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DE102007023641B4 (de) * | 2007-05-22 | 2015-04-02 | Ibs Filtran Kunststoff-/ Metallerzeugnisse Gmbh | Ölfiltervorrichtung |
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CN102806662B (zh) * | 2012-08-16 | 2016-12-21 | 哈尔滨固泰电子有限责任公司 | 塑料的喇叭制件的焊接方法及焊接结构的塑料的喇叭 |
JP6232236B2 (ja) * | 2013-09-20 | 2017-11-15 | ダイキョーニシカワ株式会社 | オイルストレーナ |
JP2015105591A (ja) * | 2013-11-29 | 2015-06-08 | ダイキョーニシカワ株式会社 | オイルストレーナ |
JP6067799B2 (ja) * | 2015-08-05 | 2017-01-25 | トヨタ自動車株式会社 | サブタンク |
CN105927321A (zh) * | 2016-04-21 | 2016-09-07 | 北京高鑫伟业滤清器有限责任公司 | 过滤器 |
KR101957891B1 (ko) * | 2018-10-29 | 2019-03-13 | 천일엔지니어링(주) | 오일 석션 파이프 |
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- 2007-01-12 JP JP2007005102A patent/JP4636027B2/ja not_active Expired - Fee Related
- 2007-12-17 US US11/957,868 patent/US20080169235A1/en not_active Abandoned
- 2007-12-28 CN CN2007103004714A patent/CN101274162B/zh not_active Expired - Fee Related
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CN101274162B (zh) | 2011-06-22 |
US20080169235A1 (en) | 2008-07-17 |
JP2008168241A (ja) | 2008-07-24 |
CN101274162A (zh) | 2008-10-01 |
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