JP4595172B2

JP4595172B2 - Noise absorbing parts

Info

Publication number: JP4595172B2
Application number: JP2000213428A
Authority: JP
Inventors: 諭村田; 秀幸三原; 稔玉田
Original assignee: Murata Manufacturing Co Ltd
Current assignee: Murata Manufacturing Co Ltd
Priority date: 2000-07-13
Filing date: 2000-07-13
Publication date: 2010-12-08
Anticipated expiration: 2020-07-13
Also published as: JP2002033217A

Description

【０００１】
【発明の属する技術分野】
本発明は、ノイズ吸収部品、特に、電子機器の信号線に装着され、電子機器内部で発生したノイズ電流、または、外部で発生し信号線を介して電子機器へ流れ込むノイズ電流を吸収するノイズ吸収部品に関する。
【０００２】
【従来の技術】
従来のノイズ吸収部品としては、図２２に示すように、フェライトからなる円筒形の磁性体５０１に信号線５０２を挿通し、この信号線５０２を磁性体５０１の周りに１回廻して磁性体５０１に再挿通したものが知られている。
【０００３】
また、別のノイズ吸収部品として、図２３に示すように、熱収縮チューブ５０３に円筒形の磁性体５０１を挿入し、更に、磁性体５０１に信号線５０２を挿通した後、熱収縮チューブ５０３を加熱収縮させ、磁性体５０１と信号線５０２とを固定させたものもある。
【０００４】
また、更に別のノイズ吸収部品として、図２４に示すものが知られている。このノイズ吸収部品は、保持ケース５１８と二分割された円筒形の磁性体５１１，５１２とを備えている。保持ケース５１８は、ヒンジ部５１５により結合された二つのケース部５２１，５２２からなり、それぞれのケース部５２１，５２２は板ばね５１７を有している。二分割された磁性体５１１，５１２は、それぞれケース部５２１，５２２に収容される。そして、磁性体５１１，５１２がそれぞれ収容された二つのケース部５２１，５２２の間に信号線５０２を挟んで閉じると同時に、自動的にケース部５２１，５２２に設けられたフック部５１４とフック受け部５１６とがロックされ、磁性体５１１，５１２が信号線５０２に装着される。板ばね５１７の弾性により、磁性体５１１，５１２はその分割面で圧着された状態で保持ケース５１８内に保持される。
【０００５】
【発明が解決しようとする課題】
しかし、図２２及び図２３に示したノイズ吸収部品は、信号線５０２が長い場合、磁性体５０１への挿通作業に手間がかかる。更に、磁性体５０１を取外して別の位置に取付け直す場合も手間がかかる。また、図２４に示したノイズ吸収部品は、部品点数が多く、高価格である。
【０００６】
そこで、本発明の目的は、信号線への取付け及び取外しが簡単で、かつ、安価なノイズ吸収部品を提供することにある。
【０００７】
【課題を解決するための手段及び作用】
前記目的を達成するため、本発明に係るノイズ吸収部品は、
（ａ）信号線挿通孔を有する筒型磁性体コアと、
（ｂ）前記筒型磁性体コアの端部に接合された信号線保持部材とを備え、
（ｃ）前記信号線保持部材が、信号線用孔を有する基台と、信号線を押さえるための押止部と、前記押止部を係止するための係止部とを有し、
（ｄ）前記係止部は、突起状をなし、前記基台の表面周縁部に設けられ、
（ｅ）前記押止部は、棒状部を有し、前記基台とヒンジ結合され、該ヒンジ部で折り曲げられて前記基台の表面に配置されていること、
を特徴とする。
【０００９】
以上の構成により、押止部の棒状部で信号線が押さえられ、保持される。このとき、信号線の径や硬さのばらつきがあっても、棒状部の押さえ加減で柔軟に対応することができる。
【００１０】
また、信号線保持部材が、棒状部を有する押止部を二つ有することにより、信号線を二つの棒状部で挟持することができ、信号線保持力が向上する。
【００１１】
また、隣接する二つの押止部を略Ｖ字形に配置させることにより、信号線と棒状部の接触長さを長くすることができ、保持力が更に向上する。
【００１２】
また、本発明に係るノイズ吸収部品は、
（ｆ）信号線挿通孔を有する筒型磁性体コアと、
（ｇ）前記筒型磁性体コアの端部に接合された信号線保持部材とを備え、
（ｈ）前記信号線保持部材が、信号線用孔を有する基台と、信号線を押さえるための押止部と、前記押止部を係止するための係止部と、信号線用孔を有した蓋とを有し、
（ｉ）前記基台と前記蓋がヒンジ結合されるとともに、
（ｊ）前記基台と棒状部を有する前記押止部がヒンジ結合され、
（ｋ）略波形状の前記係止部が前記基台の表面周縁部に設けられるとともに、
（ｌ）前記略波形状の係止部に係合する爪部が前記押止部の棒状部に設けられ、
（ｍ）前記押止部がヒンジ部で折り曲げられて前記基台の表面に配置され、
（ｎ）前記蓋がヒンジ部で折り曲げられて前記押止部を前記基台との間に配設した状態で前記基台を覆っていること、
を特徴とする。
【００１３】
これにより、蓋が押止部を押さえるため、棒状部に設けられた爪部が係止部から外れにくくなり、信号線を保持する持久性が向上する。
【００１４】
また、本発明に係るノイズ吸収部品は、
（ｋ）柔軟性樹脂からなる帯状の前記押止部が、略波形状部を有するとともに、
（ｌ）前記係止部が、前記押止部の略波形状部に係合する爪部と、該爪部と協働して前記押止部の略波形状部を挟持するガイド部とを有していること、
を特徴とする。
【００１５】
これにより、帯状の押止部で信号線を巻き絞めて信号線を押さえる。このとき、信号線の径や硬さのばらつきがあっても、押止部の巻き絞め加減で柔軟に対応することができ、信号線保持力の微調節がし易い。
【００１６】
【発明の実施の形態】
以下に、本発明に係るノイズ吸収部品の実施の形態について添付の図面を参照して説明する。なお、各実施形態において同一部品及び同一部分には同じ符号を付し、重複する説明を省略する。
【００１７】
［第１実施形態、図１〜図４］
図１及び図２は、本発明に係るノイズ吸収部品の一実施形態を示すものであり、図１はノイズ吸収部品１の分解斜視図を、図２は組立完成後のノイズ吸収部品１の斜視図をそれぞれ示す。
【００１８】
図１に示すように、筒型コア１０はフェライト等の磁性体からなり、横断面形状が円形状のものである。そして、信号線挿通孔１０ａは筒型コア１０の両端面１０ｂを貫通している。この信号線挿通孔１０ａに電子機器の信号線が挿通して、信号線の外周部を筒型コア１０が包囲し、信号線を伝搬するノイズ電流を吸収する。
【００１９】
信号線保持部材６は柔軟性樹脂からなり、基台１１と押止部１８とヒンジ部１４と係止部３１（３１ａ，３１ｂ，３１ｃ，３１ｄ）とを有している。基台１１は、筒型コア１０の横断面形状とほぼ同じ大きさの円板形状を有しており、基台１１の中心部には信号線９を挿通する信号線用孔１１ａを有している。基台１１の周縁部には、突起状の係止部３１が設けられている。
【００２０】
基台１１と押止部１８は、ヒンジ部１４を介して一体的にヒンジ結合している。押止部１８は、基部１５と細部１６と棒状部１７とで構成されている。棒状部１７は弾性を有している。細部１６は、棒状部１７の傾倒を容易にする。基部１５は、信号線９を保持したときに発生する信号線保持力の反力を、ヒンジ部１４全体に分散させる働きをする。
【００２１】
信号線保持部材６は、筒型コア１０の端面１０ｂに接着剤を用いて接合される。そして、ヒンジ部１４を折曲させて押止部１８を基台１１の表面に重ねる（図２参照）。なお、この状態を維持するために、基部１５に突起部を設けるとともに、基台１１に孔を設け、その突起部を孔に圧入嵌合して、押止部１８を折り返した状態で基台１１に固定させてもよい。
【００２２】
次に、ノイズ吸収部品１を信号線に脱着する手順を、図３を参照して説明する。組立てられたノイズ吸収部品１の平面図を図３（Ａ）に示す。このノイズ吸収部品１の信号線挿通孔１０ａ及び信号線用孔１１ａに信号線９を挿通し、ノイズ吸収部品１をノイズ除去に適した位置にスライドさせる。この後、図３（Ｂ）に示すように、押止部１８の棒状部１７の先端を手動で持ち上げて、棒状部１７が係止部３１を超えられる位置まで浮かせ、信号線９側に傾倒させる。棒状部１７は、細部１６を基点として、真っ直ぐの状態を維持したまま信号線９に当たるまで傾倒する。
【００２３】
図３（Ｃ）に示すように、棒状部１７を、更に信号線９側に傾倒させると、弾性を有する棒状部１７が信号線９に接している部分Ｐで曲がり始める。棒状部１７の曲げ量が大きくなるにつれて、棒状部１７が信号線９を押さえる力が大きくなる。適当な位置で棒状部１７の傾倒を停止し、棒状部１７を近くの係止部３１に引っ掛けて係止する。本第１実施形態では、棒状部１７を係止部３１ａに係止した。係止部３１ａは、棒状部１７が元の状態に戻ろうとする力を受け止める。これにより、棒状部１７が信号線９に食い込み、ノイズ吸収部品１が信号線９に堅固に固定される。
【００２４】
また、ノイズ吸収部品１を信号線９より小径の信号線に取付ける場合も、同様にして取付けることができる。つまり、図４に示すように、棒状部１７を信号線９ａ側に傾倒させて、係止部３１ｂに係止させるだけでよい。このように、信号線の径が異なっても、簡単にノイズ吸収部品１を取付けることができる。
【００２５】
一方、ノイズ吸収部品１を信号線９，９ａから取外す場合には、押止部１８の棒状部１７の先端を手動で持ち上げて、棒状部１７が係止部３１を超えられる位置まで浮かせる。これにより、棒状部１７は係止部３１から外れ、信号線９，９ａを押さえていた力が開放される。従って、ノイズ吸収部品１を信号線９，９ａから簡単に取外したり、あるいは、信号線９，９ａへの固定位置を簡単に補正することができる。
【００２６】
以上のノイズ吸収部品１において、その信号線保持力は、棒状部１７の幅や厚みや材質、細部１６の設置位置や形状、係止部３１ａ〜３１ｄの間隔等で決まり、これらを種々変更することにより保持力の異なるノイズ吸収部品１を提供することができる。例えば、棒状部１７の内部にピアノ線や細い硬質プラスチックを入れ込み、棒状部１７のばね特性を強くして、保持力を強くすることもできる。また、棒状部１７の信号線接触部分Ｐの表面を粗面化して、信号線９，９ａをより確実に保持するようにしてもよい。
【００２７】
また、細部１６は、棒状部１７の硬さと信号線９，９ａの径や硬さなどにより、設ける必要がない場合もある。ただし、汎用性を持たせる場合には細部１６を設けたほうがよい。
【００２８】
さらに、信号線保持部材６は金型で一体成形することができるので、製造コストも安価にすることができる。
【００２９】
［第２実施形態、図５〜図７］
図５は、本発明に係るノイズ吸収部品の別の一実施形態を示す分解斜視図である。信号線保持部材６ａは、柔軟性樹脂からなり、基台１１と押止部１８ａ，１８ｂとヒンジ部１４と係止部３２（３２ａ，３２ｂ，３２ｃ，３２ｄ）とを有している。基台１１は、筒型コア１０の横断面形状とほぼ同じ大きさの円板形状を有しており、基台１１の中心部には信号線９を挿通する信号線用孔１１ａを有している。基台１１の周縁部には、突起状の係止部３２が設けられている。
【００３０】
基台１１と押止部１８ａ，１８ｂは、ヒンジ部１４を介して一体的にヒンジ結合している。押止部１８ａは、基部１５と細部１６ａと棒状部１７ａとで構成されている。同様に、押止部１８ｂは、基部１５と細部１６ｂと棒状部１７ｂとで構成されている。基部１５は押止部１８ａ，１８ｂに共有されており、互いに平行な棒状部１７ａ，１７ｂは弾性を有している。信号線保持部材６ａは、筒型コア１０の端面１０ｂに接着剤を用いて接合される。そして、ヒンジ部１４を折曲させて押止部１８ａ，１８ｂを基台１１に重ねる。
【００３１】
次に、ノイズ吸収部品２を信号線に着脱する手順を、図６を参照して説明する。組立てられたノイズ吸収部品２の平面図を図６（Ａ）に示す。このノイズ吸収部品２の信号線挿通孔１０ａ及び信号線用孔１１ａに信号線９を挿通し、ノイズ吸収部品２をノイズ除去に適した位置にスライドさせる。この後、図６（Ｂ）に示すように、押止部１８ａ，１８ｂの棒状部１７ａ，１７ｂの先端を手動で持ちあげて、棒状部１７ａ，１７ｂが係止部３２を超えられる位置まで浮かせる。棒状部１７ａ，１７ｂの先端を人差し指ｆ１と親指ｆ２で挟むようにして棒状部１７ａ，１７ｂを信号線９側（内側）に傾倒させる。棒状部１７ａ，１７ｂは、それぞれの細部１６ａ，１６ｂを基点として、真っ直ぐの状態を維持したまま信号線９に当たるまで傾倒する。
【００３２】
更に、図６（Ｃ）に示すように、人差し指ｆ１と親指ｆ２をねじるようにして棒状部１７ａ，１７ｂを交差させて傾倒させると、弾性を有する棒状部１７ａ，１７ｂが信号線に接している部分Ｐで曲がり始める。棒状部１７ａ，１７ｂの曲げ量が大きくなるにつれて、棒状部１７ａ，１７ｂが信号線９を押さえる力が大きくなる。適当な位置で棒状部１７ａ，１７ｂの傾倒を停止し、棒状部１７ａ，１７ｂを近くの係止部３２に引っ掛けて係止する。本第２実施形態では棒状部１７ａ，１７ｂを係止部３２ｂ，３２ｃにそれぞれ係止した。係止部３２ｂ，３２ｃは、棒状部１７ａ，１７ｂが元の状態に戻ろうとする力を受け止める。これにより、棒状部１７ａ，１７ｂが信号線９に食い込み、ノイズ吸収部品２が信号線９に堅固に固定される。
【００３３】
このように、押止部が二つに増えても、ノイズ吸収部品２を片手で簡単に、信号線９に取付けることができる。
【００３４】
また、ノイズ吸収部品２を信号線９より小径の信号線に取付ける場合も同様にして取付けができる。つまり、図７に示すように、棒状部１７ａ，１７ｂを、信号線９ａ側（内側）に傾倒させて、係止部３２ｃ，３２ｂに係止させるだけでよい。
【００３５】
一方、ノイズ吸収部品２を信号線９，９ａから取外す場合には、押止部１８ａ，１８ｂの棒状部１７ａ，１７ｂの先端を手動で持ち上げて、棒状部１７ａ，１７ｂが係止部３２を超えられる位置まで浮かせる。これにより、棒状部１７ａ，１７ｂは係止部３２から外れ、信号線９，９ａを押さえていた力が開放される。従って、ノイズ吸収部品２を信号線９，９ａから簡単に取外したり、あるいは、信号線９，９ａへの固定位置を簡単に補正することができる。
【００３６】
本第２実施形態は第１実施形態と同様の作用効果を奏する。更に、信号線９を保持する押止部を二つ有しているので、保持力が第１実施形態より大きく、信号線９，９ａを十分に保持することができる。
【００３７】
［第３実施形態、図８〜図１１］
図８は、本発明に係るノイズ吸収部品の更に別の一実施形態の分解斜視図を示すものである。前記第２実施形態では、二つの押止部を平行に配置した場合を説明したが、信号線の径や信号線への着脱作業手順などによっては、二つの押止部の先が最初は開いていた方がよい場合もある。そこで、本第３実施形態では、二つの押止部をＶ字形に配置した場合について説明する。
【００３８】
基台１１と押止部１８ｃ，１８ｄは、ヒンジ部１４ａを介して一体的にヒンジ結合している。押止部１８ｃは、基部１５ａと細部１６ｃと棒状部１７ｃとで構成されている。同様に、押止部１８ｄは、基部１５ａと細部１６ｄと棒状部１７ｄとで構成されている。基部１５ａは押止部１８ｃ，１８ｄに共有されており、棒状部１７ｃと１７ｄは略Ｖ字形状のように先が開いている。信号線保持部材６ｂは、筒型コア１０の端面１０ｂに接着剤を用いて接合され、ノイズ吸収部品３を得る。
【００３９】
次に、ノイズ吸収部品３を信号線に装着する手順を、図９を参照して説明する。組立てられたノイズ吸収部品３の平面図を図９（Ａ）に示す。このノイズ吸収部品３の信号線挿通孔１０ａ及び信号線用孔１１ａに信号線９を挿通し、ノイズ吸収部品３をノイズ除去に適した位置にスライドさせる。この後、図９（Ｂ）に示すように、押止部１８ｃ，１８ｄの棒状部１７ｃ，１７ｄの先端を手動で持ちあげて、棒状部１７ｃ，１７ｄが係止部３３を超えられる位置まで浮かせる。棒状部１７ｃ，１７ｄの先端を人差し指と親指で挟むようにして棒状部１７ｃ，１７ｄを信号線９側（内側）に傾倒させる。棒状部１７ｃ，１７ｄは、それぞれの細部１６ｃ，１６ｄを基点として、真っ直ぐの状態を維持したまま信号線９に当たるまで傾倒する。
【００４０】
図９（Ｃ）に示すように、棒状部１７ｃ，１７ｄを、更に傾倒させると、弾性を有する棒状部１７ｃ，１７ｄが信号線に接している部分Ｐで曲がり始める。棒状部１７ｃ，１７ｄの曲げ量が大きくなるにつれて、棒状部１７ｃ，１７ｄが信号線９を押さえる力が大きくなる。適当な位置で棒状部１７ｃ，１７ｄの傾倒を停止し、棒状部１７ｃ，１７ｄを近くの係止部３３（３３ａ，３３ｂ，３３ｃ，３３ｄ）に引っ掛けて係止する。本第３実施形態では棒状部１７ｃ，１７ｄを係止部３３ａ，３３ｄにそれぞれ係止した。これにより、棒状部１７ｃ，１７ｄが信号線９に食い込み、ノイズ吸収部品３が信号線９に堅固に固定される。
【００４１】
また、ノイズ吸収部品３を信号線９より小径の信号線に取付ける場合も同様にして取付けができる。つまり、図１０に示すように、棒状部１７ｃ，１７ｄを、信号線９ａ側（内側）に傾倒させて、係止部３３ｂ，３３ｃに係止させるだけでよい。
【００４２】
本第３実施形態では、第１実施形態や第２実施形態と同様の作用効果を奏する。また、棒状部１７ｃ，１７ｄが開いているので、さらに棒状部１７ｃ，１７ｄを傾倒させて、棒状部１７ｃ，１７ｄを係止部３３ｂ，３３ｃにそれぞれ係止することにより、棒状部１７ｃ，１７ｄがそれぞれ信号線９に接している部分Ｐの長さを、第２実施形態の場合と比較して長くすることができる（図６（Ｃ）と図１１を参照）。この結果、信号線保持力を向上させることができる。
【００４３】
［第４実施形態、図１２〜図１６］
図１２は、本発明に係るノイズ吸収部品の更に別の一実施形態を示す分解斜視図である。信号線保持部材７は、図１３（Ａ）に示すように、柔軟性樹脂からなり、基台４１とヒンジ部４４，４９と押止部４８と蓋５１とを有している。基台４１の中心部には、信号線９を挿通する信号線用孔４１ａを有している。
【００４４】
基台４１と押止部４８は、ヒンジ部４４を介して一体的にヒンジ結合している。押止部４８は、基部４５と細部４６と棒状部４７とで構成されている。棒状部４７は弾性を有している。細部４６は、棒状部４７の傾倒を容易にする。基部４５は、信号線９を保持したときに発生する信号線保持力の反力を、ヒンジ部４４全体に分散させる働きをする。
【００４５】
基台４１の表面周縁部には、略ノコギリ波形状の係止部５０と、この係止部５０の両側に配置されているスペーサ４２，４３とが設けられている。押止部４８の棒状部４７には、係止部５０に係合する爪部５３が設けられている。さらに、蓋５１は、ヒンジ部４９を介して、基台４１に一体的にヒンジ結合している。蓋５１の中央部には、信号線９を挿通する信号線用孔５１ａを有している。
【００４６】
図１３（Ｂ）に示すように、ヒンジ部４４を折曲させることにより、押止部４８は基台４１の表面に重ねられる。押止部４８はスペーサ４２と４３の間に配置され、棒状部４７の爪部５３が係止部５０に噛み合う（図１４参照）。
【００４７】
さらに、図１３（Ｃ）に示すように、ヒンジ部４９を折曲させることにより、蓋５１が基台４１を覆うようにスペーサ４２，４３上に載置される。蓋５１とスペーサ４２，４３は、接着剤などにより接合される。これにより、押止部４８の棒状部４７が、弾性を有する蓋５１によって係止部５０に押圧された状態となる。その後、信号線保持部材７は、筒型コア１０の端面１０ｂに接着剤を用いて接合される（図１２参照）。
【００４８】
次に、ノイズ吸収部品４を信号線に着脱する手順を、図１５を参照して説明する。組立てられたノイズ吸収部品４の平面図を図１５（Ａ）に示す。ノイズ吸収部品４の信号線挿通孔１０ａ、信号線用孔４１ａ，５１ａに信号線９を挿通し、ノイズ吸収部品４をノイズ除去に適した位置にスライドさせる。この後、図１５（Ｂ）に示すように、押止部４８の棒状部４７を信号線９側（図１５（Ｂ）において、Ｘ方向）に傾倒させる。棒状部４７の爪部５３は、係止部５０の各々のノコギリ波の傾斜面を順次滑り、かつ、係止部５０に噛み合う。爪部５３と係止部５０が噛み合うことで、棒状部４７をＸ方向に傾倒させたときの戻り防止効果を奏する。このとき、棒状部４７は、細部４６を基点として、真っ直ぐの状態を維持したまま信号線９に当たるまで傾倒する。
【００４９】
更に、図１５（Ｃ）に示すように、棒状部４７を信号線９側に傾倒させると、弾性を有する棒状部４７が信号線９に接触している部分Ｐで曲がり始める。棒状部４７の曲げ量が大きくなるにつれて、棒状部４７が信号線９を押さえる力が大きくなる。適当な位置で棒状部４７の傾倒を停止すると、その状態で係止部５０と爪部５３が係止する。これにより、棒状部４７が信号線９に食い込み、ノイズ吸収部品４が信号線９に堅固に固定される。
【００５０】
また、ノイズ吸収部品４を信号線９より小径の信号線に取付ける場合も同様にして取付けることができる。つまり、図１６に示すように、所定の位置まで棒状部４７を信号線９ａ側（Ｘ方向）に傾倒させて、係止部５０に爪部５３を係止させるだけでよい。このように、信号線の径が異なっても、簡単にノイズ吸収部品４を取付けることができる。
【００５１】
一方、ノイズ吸収部品４を信号線９，９ａから取外す場合には、図１４に示すように、基台４１と蓋５１との間に形成されている空間５２に、平ドライバなどの先端を水平に差込み、その平ドライバをねじり、基台４１と蓋５１との間隔を押し広げる。そして、棒状部４７を蓋５１側に浮かせて爪部５３と係止部５０の噛み合いを外す。これにより、信号線９，９ａを押さえていた力が開放される。従って、ノイズ吸収部品４を信号線９，９ａから簡単に取外したり、あるいは、信号線９，９ａへの固定位置を簡単に補正することができる。
【００５２】
このように、本第４実施形態は、第１実施形態と同様の作用効果を奏する。更に、弾性を有する蓋５１が、棒状部４７を係止部５０に押さえつけているので、爪部５３が係止部５０から外れない。
【００５３】
また、信号線保持部材７に透明な材料を使用することにより、棒状部４７の係止状態を外から確認することができる。
【００５４】
［第５実施形態、図１７〜図１９］
図１７は、本発明に係るノイズ吸収部品の更に別の一実施形態の分解傾斜図である。
【００５５】
信号線保持部材８は、柔軟性樹脂からなり、基台６１と帯状の押止部６８と係止部６３とを有している。基台６１は、筒型コア１０の横断面形状とほぼ同じ大きさの円板形状を有しており、基台６１の中心部には信号線９を挿通する信号線用孔６１ａを有している。基台６１の信号線用孔６１ａの周縁部には、係止部６３が設けられている。
【００５６】
係止部６３は、弾性を有する爪部６５と、円弧形状のガイド部６４とで設けられている。帯状の押止部６８は、弾性を有し、略ノコギリ波形状部６９と外れ止め７０と案内部７１とで構成されている。押止部６８の一端は、係止部６３の爪部６５に一体的に接続している。略ノコギリ波形状部６９は係止部６３の爪部６５と噛み合う。ガイド部６４は爪部６５と協働して略ノコギリ波形状部６９を挟持する。
【００５７】
信号線保持部材８は、筒型コア１０の端面１０ｂに接着剤を用いて接合される。
【００５８】
次に、ノイズ吸収部品５を信号線に着脱する手順を、図１８を参照して説明する。図１８（Ａ）に示すように、ノイズ吸収部品５の信号線挿通孔１０ａ及び信号線用孔６１ａに信号線９を挿通し、ノイズ吸収部品５をノイズ除去に適した位置にスライドさせる。この後、帯状の押止部６８の案内部７１を、矢印Ｘで示した方向に移動し、ガイド部６４と爪部６５との間に形成された空間６２の一方の導入口に挿入する。
【００５９】
そして、図１８（Ｂ）に示すように、空間６２の他方の導出口から案内部７１を矢印Ｙ方向に引き出す。これにより、帯状の押止部６８が信号線９に巻き付き、信号線９を保持する。
【００６０】
図１９に示すように、爪部６５に略ノコギリ波形状部６９が噛み合って、帯状の押止部６８が係止される。爪部６５は、帯状の押止部６８が一方向（図１９においてＹ方向）にしか引き込めないように傾斜させている。
【００６１】
帯状の押止部６８をＹ方向に引き込むと、略ノコギリ波形状部６９は爪部６５に一段づつ停止しながらＹ方向にずれる。略ノコギリ波形状部６９と爪部６５は、互いに係止しているので、戻り止めの作用効果を奏する。また、帯状の押止部６８には、Ｚ方向と反対側に外れ止め７０が設けられている。外れ止め７０は、爪部６５の先端に引っかかり、押止部６８がＺ方向に横滑りして爪部６５から外れるのを防ぐ。
【００６２】
なお、係止部６３の上部が開口しているので、帯状の押止部６８を係止部６３の上方から押し込んで係止させてもよい。
【００６３】
一方、ノイズ吸収部品５を信号線９から取外す場合には、図１９において、帯状の押止部６８をＺ方向に持ち上げるだけでよい。つまり、外れ止め７０と接触している爪部６５に力がかかり、爪部６５が外れ止め７０から外れるので、帯状の押止部６８は、Ｚ方向に横滑りし、係止部６３から外れる。従って、ノイズ吸収部品５を信号線９から簡単に取外したり、あるいは、信号線９への固定位置を簡単に補正することができる。
【００６４】
また、ノイズ吸収部品５を信号線９より小径の信号線に取付ける場合も同様にして取付けることができる。
【００６５】
以上のノイズ吸収部品５は、帯状の押止部６８で信号線９を巻き絞めて信号線９を押さえる。このとき、信号線９の径や硬さのばらつきがあっても、押止部６８の巻き絞め加減で柔軟に対応することができ、信号線保持力の微調整がし易い。
【００６６】
信号線保持部材８は、図１７に示すように、押止部６８が設けられている部分の基台６１にカット部分６１ｂを設けてあるので、帯状の押止部６８を含めて一体成形により得ることができ、製造コストが安価である。
【００６７】
また、これとは別の形状として、基台６１のカット部分６１ｂを設けずに、爪部６５に凹部を設け、帯状の押止部６８の案内部７１と反対側の先端をＴ字状にして、この凹部に勘合する形状にする。そして、基台６１と帯状の押止部６８を別々成型した後、押止部６８のＴ字状部分を凹部に嵌合して、信号線保持部材８と同じ構成を得ることができる。
【００６８】
［他の実施形態］
本発明は、前記実施形態に限定されるものではなく、本発明の要旨の範囲内で種々の構成に変更することができる。
【００６９】
例えば、第１実施形態ないし第３実施形態の係止部３１〜３３の形状は、円柱形状としたが、棒状部１７，１７ａ〜１７ｄが確実に係止できるように、図２０（Ａ），（Ｂ）に示すように、円柱形状の頂部に大径の円板や楕円板を設けた係止部３４，３５や、図２０（Ｃ），（Ｄ）に示すように、円柱形状や矩形柱状の部分の一部を切り欠いた形状を有する係止部３６，３７等でもよい。
【００７０】
また、筒型コア１０の形状は楕円形状や矩形状等の形状でもよく、基台１１，４１，６１の形状は楕円板や矩形板等の形状でもよい。
【００７１】
更に、基台１１，４１，６１と筒型コア１０の接合には、基台１１，４１，６１の周縁部に袴状の側壁を設け、該側壁に筒型コア１０の外周面を嵌圧入する方式でもよい。または、筒型コア１０の信号線挿通孔１０ａに嵌め込み可能な筒形状のものを、基台１１，４１，６１の信号線用孔１１ａ，４１ａ，６１ａの内側に設け、これを信号線挿通孔１０ａに圧入する方式でもよい。
【００７２】
また、ノイズ吸収部品１〜４が小さい場合や、信号線９が柔らかく小さい保持力で十分な場合等は、基部１５，４５と細部１６，１６ａ〜１６ｄ，４６を設けないで、棒状部１７，１７ａ〜１７ｄ，４７に直接、ヒンジ部１４，１４ａ，４４を設けてもよい。具体的には、信号線保持部材６を例にすると、図２１に示すように、信号線保持部材６ｃのようになる。
【００７３】
また、ノイズ吸収部品１〜５を信号線９，９ａに取付けた後は、他の作業の妨げにならないように、ノイズ吸収部品１〜５の表面から突出している棒状部１７，１７ａ〜１７ｄや帯状押止部６８を必要な長さに切断してもよい。
【００７４】
また、ノイズ吸収部品５のガイド部６４の形状が円弧形状としているが、これに限定されるものではなく、直線形状等でもよい。
【００７５】
【発明の効果】
以上の説明から明らかなように、押止部の棒状部で信号線が押さえられ保持されるので、信号線の径や硬さのばらつきがあっても、棒状部の押さえ加減で柔軟に対応することができる。
【００７６】
また、信号線保持部材が、棒状部を有する押止部を二つ有することにより、信号線を二つの棒状部で挟持することができ、信号線保持力を向上させることができる。
【００７７】
また、隣接する二つの押止部を略Ｖ字形に配置させることにより、信号線と棒状部の接触長さを長くすることができ、保持力を更に向上させることができる。
【００７８】
また、蓋が押止部を押さえる構造を有することにより、棒状部に設けられた爪部が係止部から外れにくくなり、信号線を保持する持久性を向上させることができる。
【００７９】
また、帯状の押止部で信号線を巻き絞めて信号線を押さえることにより、信号線の径や硬さのばらつきがあっても、押止部の巻き絞め加減で柔軟に対応することができ、信号線保持力の微調節をし易くすることができる。
【図面の簡単な説明】
【図１】本発明に係るノイズ吸収部品の第１実施形態を示す分解斜視図。
【図２】図１に示したノイズ吸収部品の外観斜視図。
【図３】図２に示したノイズ吸収部品を信号線へ取付ける手順を説明するための平面図。
【図４】図２に示したノイズ吸収部品を小径の信号線へ取付けた状態を示す平面図。
【図５】本発明に係るノイズ吸収部品の第２実施形態を示す分解斜視図。
【図６】図５に示したノイズ吸収部品を信号線へ取付ける手順を説明するための平面図。
【図７】図５に示したノイズ吸収部品を小径の信号線へ取付けた状態を示す平面図。
【図８】本発明に係るノイズ吸収部品の第３実施形態を示す分解斜視図。
【図９】図８に示したノイズ吸収部品を信号線へ取付ける手順を説明するための平面図。
【図１０】図８に示したノイズ吸収部品を小径の信号線へ取付けた状態を示す平面図。
【図１１】図８に示したノイズ吸収部品を信号線へより強く取付けたときの平面図。
【図１２】本発明に係るノイズ吸収部品の第４実施形態を示す分解斜視図。
【図１３】図１２に示した信号線保持部材の組立て手順を説明するための分解斜視図。
【図１４】図１２に示した棒状部と係止部の噛み合い状態を示す一部拡大側面図。
【図１５】図１２に示したノイズ吸収部品を信号線へ取付ける手順を説明するための、蓋を省略した平面図。
【図１６】図１２に示したノイズ吸収部品を小径の信号線へ取付けた状態を示す平面図。
【図１７】本発明に係るノイズ吸収部品の第５実施形態を示す分解斜視図。
【図１８】図１７に示したノイズ吸収部品を信号線へ取付ける手順を説明するための平面図。
【図１９】図１７に示した信号線保持部材の係止部の拡大斜視図。
【図２０】係止部の変形例を示す斜視図。
【図２１】信号線保持部材の変形例を示す斜視図。
【図２２】従来のノイズ吸収部品を示す外観斜視図。
【図２３】別の従来のノイズ吸収部品を示す断面図。
【図２４】更に別の従来のノイズ吸収部品を示す分解斜視図。
【符号の説明】
１〜５…ノイズ吸収部品
６，６ａ，６ｂ，６ｃ，７，８…信号線保持部材
１０…筒型コア
１０ａ…信号線挿通孔
１１，４１，６１…基台
１１ａ，４１ａ，５１ａ，６１ａ…信号線用孔
１４，４４，４９…ヒンジ部
１７，１７ａ，１７ｂ，１７ｃ，１７ｄ，４７…棒状部
１８，１８ａ，１８ｂ，１８ｃ，１８ｄ，４８，６８…押止部
３１ａ〜３１ｄ，３２ａ〜３２ｄ，３３ａ〜３３ｄ，３４〜３７，５０，６３…係止部
５１…蓋
５３…爪部
６４…ガイド部
６５…爪部
６９…略ノコギリ波形状部[0001]
BACKGROUND OF THE INVENTION
The present invention is a noise absorption component, particularly noise absorption that is attached to a signal line of an electronic device and absorbs a noise current generated inside the electronic device or a noise current generated outside and flowing into the electronic device via the signal line. Regarding parts.
[0002]
[Prior art]
As a conventional noise absorbing component, as shown in FIG. 22, a signal line 502 is inserted into a cylindrical magnetic body 501 made of ferrite, and the signal line 502 is turned around the magnetic body 501 once to form the magnetic body 501. What is reinserted into is known.
[0003]
As another noise absorbing component, as shown in FIG. 23, a cylindrical magnetic body 501 is inserted into a heat shrinkable tube 503, and a signal line 502 is inserted into the magnetic body 501, and then the heat shrinkable tube 503 is attached. There is also one in which the magnetic body 501 and the signal line 502 are fixed by heat-shrinking.
[0004]
Further, another noise absorbing component shown in FIG. 24 is known. This noise absorbing component includes a holding case 518 and two divided cylindrical magnetic bodies 511 and 512. The holding case 518 includes two case portions 521 and 522 connected by a hinge portion 515, and each case portion 521 and 522 has a leaf spring 517. The two divided magnetic bodies 511 and 512 are accommodated in the case portions 521 and 522, respectively. At the same time as closing the signal line 502 between the two case portions 521 and 522 in which the magnetic bodies 511 and 512 are respectively housed, the hook portions 514 provided on the case portions 521 and 522 and the hook receivers are automatically provided. And the magnetic bodies 511 and 512 are attached to the signal line 502. Due to the elasticity of the leaf spring 517, the magnetic bodies 511 and 512 are held in the holding case 518 in a state where they are pressure-bonded at their divided surfaces.
[0005]
[Problems to be solved by the invention]
However, in the noise absorbing component shown in FIGS. 22 and 23, when the signal line 502 is long, it takes time to insert the magnetic body 501. Furthermore, it takes time to remove the magnetic body 501 and reattach it to another position. The noise absorbing component shown in FIG. 24 has a large number of components and is expensive.
[0006]
Accordingly, an object of the present invention is to provide an inexpensive noise absorbing component that can be easily attached to and detached from a signal line and is inexpensive.
[0007]
[Means and Actions for Solving the Problems]
  In order to achieve the above object, the noise absorbing component according to the present invention is:
  (A) a cylindrical magnetic core having a signal line insertion hole;
  (B) a signal line holding member joined to an end of the cylindrical magnetic core;
  (C) The signal line holding member has a base having a signal line hole, a pressing part for pressing the signal line, and a locking part for locking the pressing part.Shi,
  (D) The locking portion has a protruding shape and is provided on the peripheral edge of the surface of the base.
  (E) the holding part has a rod-like part, is hinged to the base, is bent at the hinge part, and is disposed on the surface of the base;
  It is characterized by.
[0009]
With the above configuration, the signal line is pressed and held by the bar-shaped portion of the pressing portion. At this time, even if there is a variation in the diameter and hardness of the signal line, it can be flexibly handled by adjusting the rod-shaped portion.
[0010]
In addition, since the signal line holding member has two holding portions each having a bar-like part, the signal line can be held between the two bar-like parts, and the signal line holding force is improved.
[0011]
Further, by arranging two adjacent pressing portions in a substantially V shape, the contact length between the signal line and the rod-shaped portion can be increased, and the holding force is further improved.
[0012]
  The noise absorbing component according to the present invention is
  (F)A cylindrical magnetic core having a signal line insertion hole;
  (G)A signal line holding member joined to an end of the cylindrical magnetic core,
  (H)The signal line holding member includes a base having a signal line hole, a pressing part for pressing the signal line, and a locking part for locking the pressing part,Lid with signal line holeAndHave
  (I)The base and the lid are hinged,
  (J) The holding part having the base and the rod-like part is hinged,
  (K)The substantially wave-shaped locking portion is provided at the peripheral edge of the surface of the base,
  (L)A claw portion that engages with the substantially wave-shaped locking portion is provided on the rod-shaped portion of the holding portion,
  (M) The holding part is bent at the hinge part and arranged on the surface of the base,
  (N)The lid is folded at a hinge part and covers the base in a state where the holding part is disposed between the base and the base;
  It is characterized by.
[0013]
As a result, since the lid presses the holding portion, the claw portion provided on the rod-like portion is unlikely to come off from the locking portion, and the durability of holding the signal line is improved.
[0014]
The noise absorbing component according to the present invention is
(K) While the band-shaped pressing portion made of a flexible resin has a substantially wave-shaped portion,
(L) A claw portion that engages the substantially wave-shaped portion of the holding portion, and a guide portion that cooperates with the claw portion and holds the substantially wave-shaped portion of the holding portion. Having
It is characterized by.
[0015]
As a result, the signal line is wound and squeezed by the belt-shaped pressing portion to hold the signal line. At this time, even if there is a variation in the diameter or hardness of the signal line, it can be flexibly handled by adjusting the winding of the stopper, and the signal line holding force can be finely adjusted.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a noise absorbing component according to the present invention will be described below with reference to the accompanying drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the same components and the same part, and the overlapping description is abbreviate | omitted.
[0017]
[First Embodiment, FIGS. 1 to 4]
1 and 2 show an embodiment of a noise absorbing component according to the present invention. FIG. 1 is an exploded perspective view of the noise absorbing component 1 and FIG. 2 is a perspective view of the noise absorbing component 1 after assembly is completed. Each figure is shown.
[0018]
As shown in FIG. 1, the cylindrical core 10 is made of a magnetic material such as ferrite, and has a circular cross section. The signal line insertion hole 10 a passes through both end faces 10 b of the cylindrical core 10. The signal line of the electronic device is inserted into the signal line insertion hole 10a, the outer periphery of the signal line is surrounded by the cylindrical core 10, and the noise current propagating through the signal line is absorbed.
[0019]
The signal line holding member 6 is made of a flexible resin, and includes a base 11, a pressing part 18, a hinge part 14, and a locking part 31 (31a, 31b, 31c, 31d). The base 11 has a disk shape substantially the same size as the cross-sectional shape of the cylindrical core 10, and has a signal line hole 11 a through which the signal line 9 is inserted at the center of the base 11. ing. On the peripheral edge of the base 11, a protruding locking portion 31 is provided.
[0020]
The base 11 and the pressing part 18 are integrally hinge-coupled via the hinge part 14. The holding portion 18 includes a base portion 15, details 16, and a rod-like portion 17. The rod-shaped part 17 has elasticity. The details 16 facilitate the tilting of the rod-like portion 17. The base 15 functions to disperse the reaction force of the signal line holding force generated when holding the signal line 9 over the entire hinge part 14.
[0021]
The signal line holding member 6 is joined to the end surface 10b of the cylindrical core 10 using an adhesive. Then, the hinge portion 14 is bent and the pressing portion 18 is overlapped on the surface of the base 11 (see FIG. 2). In order to maintain this state, the base 15 is provided with a protrusion, the base 11 is provided with a hole, the protrusion is press-fitted into the hole, and the holding part 18 is folded back. 11 may be fixed.
[0022]
Next, a procedure for attaching / detaching the noise absorbing component 1 to / from the signal line will be described with reference to FIG. A plan view of the assembled noise absorbing component 1 is shown in FIG. The signal line 9 is inserted into the signal line insertion hole 10a and the signal line hole 11a of the noise absorbing component 1, and the noise absorbing component 1 is slid to a position suitable for noise removal. Thereafter, as shown in FIG. 3 (B), the tip of the bar-shaped part 17 of the holding part 18 is manually lifted to float up to a position where the bar-shaped part 17 exceeds the locking part 31 and tilted toward the signal line 9 side. Let The rod-shaped portion 17 is tilted from the detail 16 until it hits the signal line 9 while maintaining a straight state.
[0023]
As shown in FIG. 3C, when the rod-shaped portion 17 is further tilted toward the signal line 9, the elastic rod-shaped portion 17 starts to bend at a portion P in contact with the signal line 9. As the bending amount of the rod-shaped portion 17 increases, the force with which the rod-shaped portion 17 presses the signal line 9 increases. The tilting of the rod-shaped portion 17 is stopped at an appropriate position, and the rod-shaped portion 17 is hooked on the nearby locking portion 31 and locked. In the first embodiment, the rod-shaped portion 17 is locked to the locking portion 31a. The locking portion 31a receives the force that the rod-shaped portion 17 tries to return to the original state. Thereby, the rod-shaped part 17 bites into the signal line 9, and the noise absorbing component 1 is firmly fixed to the signal line 9.
[0024]
Further, when the noise absorbing component 1 is attached to a signal wire having a diameter smaller than that of the signal wire 9, it can be attached in the same manner. That is, as shown in FIG. 4, it is only necessary to tilt the rod-shaped portion 17 toward the signal line 9a and lock it to the locking portion 31b. Thus, even if the diameters of the signal lines are different, the noise absorbing component 1 can be easily attached.
[0025]
On the other hand, when the noise absorbing component 1 is removed from the signal lines 9 and 9 a, the tip of the bar-shaped part 17 of the holding part 18 is manually lifted to float to a position where the bar-shaped part 17 can exceed the locking part 31. Thereby, the rod-shaped part 17 comes off from the latching | locking part 31, and the force which was pressing down the signal wires 9 and 9a is released. Therefore, the noise absorbing component 1 can be easily removed from the signal lines 9 and 9a, or the fixed position to the signal lines 9 and 9a can be easily corrected.
[0026]
In the noise absorbing component 1 described above, the signal line holding force is determined by the width, thickness, and material of the rod-like portion 17, the installation position and shape of the detail 16, the interval between the locking portions 31a to 31d, and the like. Thus, it is possible to provide the noise absorbing component 1 having a different holding force. For example, a piano wire or thin hard plastic can be inserted into the rod-shaped portion 17 to increase the spring characteristics of the rod-shaped portion 17 and increase the holding force. Further, the surface of the signal line contact portion P of the rod-shaped portion 17 may be roughened to hold the signal lines 9 and 9a more reliably.
[0027]
The detail 16 may not be provided depending on the hardness of the rod-shaped portion 17 and the diameter and hardness of the signal wires 9 and 9a. However, in order to have versatility, it is better to provide the details 16.
[0028]
Furthermore, since the signal line holding member 6 can be integrally formed with a mold, the manufacturing cost can be reduced.
[0029]
[Second Embodiment, FIGS. 5 to 7]
FIG. 5 is an exploded perspective view showing another embodiment of the noise absorbing component according to the present invention. The signal line holding member 6a is made of a flexible resin, and includes the base 11, the holding portions 18a and 18b, the hinge portion 14, and the locking portions 32 (32a, 32b, 32c, and 32d). The base 11 has a disk shape substantially the same size as the cross-sectional shape of the cylindrical core 10, and has a signal line hole 11 a through which the signal line 9 is inserted at the center of the base 11. ing. On the peripheral edge of the base 11, a protruding locking portion 32 is provided.
[0030]
The base 11 and the holding portions 18a and 18b are integrally hinge-coupled via the hinge portion 14. The holding portion 18a includes a base portion 15, a detail portion 16a, and a rod-like portion 17a. Similarly, the holding | maintenance part 18b is comprised by the base 15, the detail 16b, and the rod-shaped part 17b. The base portion 15 is shared by the holding portions 18a and 18b, and the rod-like portions 17a and 17b parallel to each other have elasticity. The signal line holding member 6a is joined to the end surface 10b of the cylindrical core 10 using an adhesive. Then, the hinge portion 14 is bent and the holding portions 18 a and 18 b are overlapped on the base 11.
[0031]
Next, a procedure for attaching / detaching the noise absorbing component 2 to / from the signal line will be described with reference to FIG. A plan view of the assembled noise absorbing component 2 is shown in FIG. The signal line 9 is inserted into the signal line insertion hole 10a and the signal line hole 11a of the noise absorbing component 2, and the noise absorbing component 2 is slid to a position suitable for noise removal. Thereafter, as shown in FIG. 6 (B), the tips of the rod-like portions 17a and 17b of the holding portions 18a and 18b are manually lifted to float to a position where the rod-like portions 17a and 17b can exceed the locking portion 32. . The rod-like portions 17a and 17b are tilted to the signal line 9 side (inner side) so that the tips of the rod-like portions 17a and 17b are sandwiched between the index finger f1 and the thumb f2. The rod-like portions 17a and 17b are tilted from the respective details 16a and 16b as a base point until they contact the signal line 9 while maintaining a straight state.
[0032]
Further, as shown in FIG. 6C, when the index fingers f1 and thumb f2 are twisted so that the rod-shaped portions 17a and 17b are crossed and tilted, the elastic rod-shaped portions 17a and 17b are in contact with the signal line. Start turning at part P. As the amount of bending of the rod-shaped portions 17a and 17b increases, the force with which the rod-shaped portions 17a and 17b press the signal line 9 increases. The tilting of the rod-like portions 17a and 17b is stopped at an appropriate position, and the rod-like portions 17a and 17b are hooked on the nearby locking portions 32 and locked. In the second embodiment, the rod-shaped portions 17a and 17b are locked to the locking portions 32b and 32c, respectively. The locking portions 32b and 32c receive the force with which the rod-like portions 17a and 17b return to the original state. As a result, the rod-like portions 17 a and 17 b bite into the signal line 9, and the noise absorbing component 2 is firmly fixed to the signal line 9.
[0033]
In this way, even if the number of holding parts increases, the noise absorbing component 2 can be easily attached to the signal line 9 with one hand.
[0034]
Further, when the noise absorbing component 2 is attached to a signal wire having a diameter smaller than that of the signal wire 9, it can be attached in the same manner. That is, as shown in FIG. 7, the rod-like portions 17a and 17b need only be tilted to the signal line 9a side (inner side) and locked to the locking portions 32c and 32b.
[0035]
On the other hand, when the noise absorbing component 2 is removed from the signal lines 9 and 9a, the tips of the rod-like portions 17a and 17b of the holding portions 18a and 18b are manually lifted so that the rod-like portions 17a and 17b exceed the locking portion 32. Float to the position where As a result, the rod-like parts 17a and 17b are detached from the locking part 32, and the force holding the signal lines 9 and 9a is released. Therefore, the noise absorbing component 2 can be easily removed from the signal lines 9 and 9a, or the fixed position to the signal lines 9 and 9a can be easily corrected.
[0036]
The second embodiment has the same effects as the first embodiment. Further, since the two holding portions for holding the signal line 9 are provided, the holding force is larger than that of the first embodiment, and the signal lines 9 and 9a can be sufficiently held.
[0037]
[Third Embodiment, FIGS. 8 to 11]
FIG. 8 is an exploded perspective view of still another embodiment of the noise absorbing component according to the present invention. In the second embodiment, the case where the two holding portions are arranged in parallel has been described. However, depending on the diameter of the signal wire or the attaching / detaching operation procedure to the signal wire, the ends of the two holding portions are initially opened. Sometimes it ’s better to be. Therefore, in the third embodiment, a case where the two pressing portions are arranged in a V shape will be described.
[0038]
The base 11 and the holding portions 18c and 18d are integrally hinge-coupled via the hinge portion 14a. The holding part 18c is composed of a base part 15a, details 16c, and a rod-like part 17c. Similarly, the holding part 18d is composed of a base part 15a, details 16d, and a rod-like part 17d. The base portion 15a is shared by the holding portions 18c and 18d, and the rod-like portions 17c and 17d are open at the ends like a substantially V shape. The signal line holding member 6b is joined to the end surface 10b of the cylindrical core 10 using an adhesive, and the noise absorbing component 3 is obtained.
[0039]
Next, a procedure for attaching the noise absorbing component 3 to the signal line will be described with reference to FIG. A plan view of the assembled noise absorbing component 3 is shown in FIG. The signal line 9 is inserted into the signal line insertion hole 10a and the signal line hole 11a of the noise absorbing component 3, and the noise absorbing component 3 is slid to a position suitable for noise removal. Thereafter, as shown in FIG. 9B, the ends of the rod-like portions 17c and 17d of the holding portions 18c and 18d are manually lifted to float to a position where the rod-like portions 17c and 17d can exceed the locking portion 33. . The rod-like portions 17c and 17d are tilted to the signal line 9 side (inner side) so that the tips of the rod-like portions 17c and 17d are sandwiched between the index finger and the thumb. The rod-like portions 17c and 17d are tilted from the respective details 16c and 16d as a base point until they contact the signal line 9 while maintaining a straight state.
[0040]
As shown in FIG. 9C, when the rod-like portions 17c and 17d are further tilted, the elastic rod-like portions 17c and 17d start to bend at a portion P in contact with the signal line. As the amount of bending of the rod-shaped portions 17c and 17d increases, the force with which the rod-shaped portions 17c and 17d press the signal line 9 increases. The tilting of the rod-shaped portions 17c and 17d is stopped at an appropriate position, and the rod-shaped portions 17c and 17d are hooked on the nearby locking portions 33 (33a, 33b, 33c and 33d) and locked. In the third embodiment, the rod-like portions 17c and 17d are locked to the locking portions 33a and 33d, respectively. As a result, the rod-like portions 17 c and 17 d bit into the signal line 9, and the noise absorbing component 3 is firmly fixed to the signal line 9.
[0041]
Further, when the noise absorbing component 3 is attached to a signal wire having a diameter smaller than that of the signal wire 9, it can be attached in the same manner. That is, as shown in FIG. 10, the rod-like portions 17c and 17d need only be tilted to the signal line 9a side (inner side) and locked to the locking portions 33b and 33c.
[0042]
In the third embodiment, the same operational effects as those in the first embodiment and the second embodiment are obtained. Further, since the rod-shaped portions 17c and 17d are open, the rod-shaped portions 17c and 17d are further tilted, and the rod-shaped portions 17c and 17d are respectively locked to the locking portions 33b and 33c. The length of the portion P in contact with the signal line 9 can be made longer than that in the second embodiment (see FIGS. 6C and 11). As a result, the signal line holding power can be improved.
[0043]
[Fourth Embodiment, FIGS. 12 to 16]
FIG. 12 is an exploded perspective view showing still another embodiment of the noise absorbing component according to the present invention. As shown in FIG. 13A, the signal line holding member 7 is made of a flexible resin and includes a base 41, hinge portions 44 and 49, a pressing portion 48, and a lid 51. At the center of the base 41, there is a signal line hole 41a through which the signal line 9 is inserted.
[0044]
The base 41 and the holding part 48 are integrally hinge-coupled via a hinge part 44. The holding portion 48 includes a base portion 45, details 46, and a rod-like portion 47. The rod-shaped part 47 has elasticity. The detail 46 facilitates the tilting of the bar 47. The base 45 functions to disperse the reaction force of the signal line holding force generated when holding the signal line 9 over the entire hinge part 44.
[0045]
A substantially sawtooth locking portion 50 and spacers 42 and 43 disposed on both sides of the locking portion 50 are provided on the peripheral edge of the surface of the base 41. A claw portion 53 that engages with the locking portion 50 is provided on the rod-like portion 47 of the pressing portion 48. Further, the lid 51 is integrally hinge-coupled to the base 41 via the hinge portion 49. A signal line hole 51 a through which the signal line 9 is inserted is provided at the center of the lid 51.
[0046]
As shown in FIG. 13B, the holding portion 48 is overlapped on the surface of the base 41 by bending the hinge portion 44. The holding portion 48 is disposed between the spacers 42 and 43, and the claw portion 53 of the rod-like portion 47 is engaged with the locking portion 50 (see FIG. 14).
[0047]
Further, as shown in FIG. 13C, the lid 51 is placed on the spacers 42 and 43 so as to cover the base 41 by bending the hinge portion 49. The lid 51 and the spacers 42 and 43 are joined by an adhesive or the like. Thereby, the rod-shaped part 47 of the pressing part 48 will be in the state pressed by the latching | locking part 50 with the lid | cover 51 which has elasticity. Thereafter, the signal line holding member 7 is joined to the end surface 10b of the cylindrical core 10 using an adhesive (see FIG. 12).
[0048]
Next, a procedure for attaching / detaching the noise absorbing component 4 to / from the signal line will be described with reference to FIG. A plan view of the assembled noise absorbing component 4 is shown in FIG. The signal line 9 is inserted into the signal line insertion hole 10a and the signal line holes 41a and 51a of the noise absorbing component 4, and the noise absorbing component 4 is slid to a position suitable for noise removal. Thereafter, as shown in FIG. 15B, the rod-like portion 47 of the retaining portion 48 is tilted toward the signal line 9 (in the X direction in FIG. 15B). The claw portion 53 of the rod-shaped portion 47 sequentially slides on the inclined surface of each sawtooth wave of the locking portion 50 and meshes with the locking portion 50. By engaging the claw portion 53 and the locking portion 50, there is an effect of preventing the return when the rod-like portion 47 is tilted in the X direction. At this time, the rod-like portion 47 tilts with the detail 46 as a base point until it hits the signal line 9 while maintaining a straight state.
[0049]
Further, as shown in FIG. 15C, when the rod-shaped portion 47 is tilted toward the signal line 9, the elastic rod-shaped portion 47 starts to bend at a portion P in contact with the signal line 9. As the bending amount of the rod-shaped portion 47 increases, the force with which the rod-shaped portion 47 presses the signal line 9 increases. When the tilting of the rod-shaped portion 47 is stopped at an appropriate position, the locking portion 50 and the claw portion 53 are locked in that state. Thereby, the rod-shaped part 47 bites into the signal line 9, and the noise absorbing component 4 is firmly fixed to the signal line 9.
[0050]
Further, when the noise absorbing component 4 is attached to a signal wire having a diameter smaller than that of the signal wire 9, it can be attached in the same manner. That is, as shown in FIG. 16, it is only necessary to tilt the rod-shaped portion 47 to the signal line 9 a side (X direction) to a predetermined position and to lock the claw portion 53 to the locking portion 50. Thus, even if the diameters of the signal wires are different, the noise absorbing component 4 can be easily attached.
[0051]
On the other hand, when the noise absorbing component 4 is removed from the signal lines 9 and 9a, the tip of a flat screwdriver or the like is horizontally placed in a space 52 formed between the base 41 and the lid 51 as shown in FIG. Then, the flat screwdriver is twisted to widen the gap between the base 41 and the lid 51. Then, the rod-shaped portion 47 is floated on the lid 51 side to disengage the claw portion 53 and the locking portion 50 from each other. As a result, the force holding the signal lines 9, 9a is released. Therefore, the noise absorbing component 4 can be easily removed from the signal lines 9 and 9a, or the fixed position to the signal lines 9 and 9a can be easily corrected.
[0052]
Thus, this 4th Embodiment has the same operation effect as a 1st embodiment. Further, since the elastic lid 51 presses the rod-shaped portion 47 against the locking portion 50, the claw portion 53 does not come off from the locking portion 50.
[0053]
Further, by using a transparent material for the signal line holding member 7, the locked state of the rod-like portion 47 can be confirmed from the outside.
[0054]
[Fifth Embodiment, FIGS. 17 to 19]
FIG. 17 is an exploded perspective view of still another embodiment of the noise absorbing component according to the present invention.
[0055]
The signal line holding member 8 is made of a flexible resin and includes a base 61, a belt-like pressing portion 68, and a locking portion 63. The base 61 has a disk shape that is almost the same size as the cross-sectional shape of the cylindrical core 10, and has a signal line hole 61 a through which the signal line 9 is inserted at the center of the base 61. ing. A locking portion 63 is provided at the peripheral edge of the signal line hole 61 a of the base 61.
[0056]
The locking part 63 is provided with an elastic claw part 65 and an arcuate guide part 64. The belt-like pressing part 68 has elasticity, and is composed of a substantially sawtooth wave shape part 69, a stopper 70 and a guide part 71. One end of the pressing portion 68 is integrally connected to the claw portion 65 of the locking portion 63. The substantially sawtooth wave shape portion 69 meshes with the claw portion 65 of the locking portion 63. The guide portion 64 cooperates with the claw portion 65 to sandwich the substantially sawtooth wave shape portion 69.
[0057]
The signal line holding member 8 is joined to the end surface 10b of the cylindrical core 10 using an adhesive.
[0058]
Next, a procedure for attaching / detaching the noise absorbing component 5 to / from the signal line will be described with reference to FIG. As shown in FIG. 18A, the signal line 9 is inserted into the signal line insertion hole 10a and the signal line hole 61a of the noise absorbing component 5, and the noise absorbing component 5 is slid to a position suitable for noise removal. Thereafter, the guide part 71 of the belt-like pressing part 68 moves in the direction indicated by the arrow X and is inserted into one introduction port of the space 62 formed between the guide part 64 and the claw part 65.
[0059]
Then, as shown in FIG. 18B, the guide portion 71 is pulled out in the arrow Y direction from the other outlet of the space 62. As a result, the belt-like pressing portion 68 is wound around the signal line 9 and holds the signal line 9.
[0060]
As shown in FIG. 19, the substantially sawtooth wave shape portion 69 meshes with the claw portion 65, and the belt-like pressing portion 68 is locked. The claw portion 65 is inclined so that the belt-like pressing portion 68 can be retracted only in one direction (Y direction in FIG. 19).
[0061]
When the belt-like pressing part 68 is pulled in the Y direction, the substantially sawtooth wave shape part 69 is shifted in the Y direction while stopping at the claw part 65 step by step. Since the substantially sawtooth wave shape portion 69 and the claw portion 65 are engaged with each other, there is an effect of detent. Further, the belt-like pressing portion 68 is provided with a stopper 70 on the side opposite to the Z direction. The stopper 70 is caught at the tip of the claw portion 65 and prevents the pressing portion 68 from slipping in the Z direction and coming off the claw portion 65.
[0062]
In addition, since the upper part of the latching | locking part 63 is opening, you may push the strip | belt-shaped pressing part 68 from the upper part of the latching | locking part 63, and you may make it latch.
[0063]
On the other hand, when removing the noise absorbing component 5 from the signal line 9, it is only necessary to lift the belt-like pressing member 68 in the Z direction in FIG. 19. That is, a force is applied to the claw portion 65 that is in contact with the release stopper 70, and the claw portion 65 is released from the release stopper 70, so that the belt-like pressing portion 68 slides sideways in the Z direction and is released from the locking portion 63. Therefore, it is possible to easily remove the noise absorbing component 5 from the signal line 9 or to easily correct the fixed position to the signal line 9.
[0064]
Further, when the noise absorbing component 5 is attached to a signal wire having a diameter smaller than that of the signal wire 9, it can be attached in the same manner.
[0065]
In the noise absorbing component 5 described above, the signal line 9 is wound and squeezed by the belt-like pressing portion 68 to press the signal line 9. At this time, even if there is a variation in the diameter or hardness of the signal line 9, it can be flexibly dealt with by adjusting the winding stop of the holding portion 68, and the signal line holding force can be easily finely adjusted.
[0066]
As shown in FIG. 17, the signal line holding member 8 has a cut portion 61 b provided on the base 61 where the holding portion 68 is provided. Therefore, the signal line holding member 8 is integrally formed including the belt-like holding portion 68. Can be obtained, and the manufacturing cost is low.
[0067]
In addition, as a different shape, the claw portion 65 is provided with a recess without providing the cut portion 61b of the base 61, and the tip of the belt-like pressing portion 68 opposite to the guide portion 71 is formed into a T shape. Thus, the shape fits into the recess. Then, after the base 61 and the belt-like pressing portion 68 are separately molded, the T-shaped portion of the pressing portion 68 is fitted into the recess, so that the same configuration as the signal line holding member 8 can be obtained.
[0068]
[Other Embodiments]
The present invention is not limited to the above-described embodiment, and can be changed to various configurations within the scope of the gist of the present invention.
[0069]
For example, although the shape of the locking portions 31 to 33 in the first to third embodiments is a cylindrical shape, the rod-shaped portions 17 and 17a to 17d can be securely locked as shown in FIG. As shown in FIG. 20 (B), as shown in FIGS. 20 (C) and 20 (D), as shown in FIGS. The latching | locking parts 36 and 37 etc. which have the shape which notched a part of columnar part may be sufficient.
[0070]
The cylindrical core 10 may have an elliptical shape or a rectangular shape, and the bases 11, 41, 61 may have an elliptical plate, a rectangular plate, or the like.
[0071]
Further, for joining the bases 11, 41, 61 and the cylindrical core 10, a bowl-shaped side wall is provided at the peripheral edge of the bases 11, 41, 61, and the outer peripheral surface of the cylindrical core 10 is press-fitted into the side walls. It is also possible to use this method. Alternatively, a cylindrical shape that can be fitted into the signal line insertion hole 10a of the cylindrical core 10 is provided inside the signal line holes 11a, 41a, 61a of the bases 11, 41, 61, and this is provided in the signal line insertion hole. A method of press-fitting into 10a may be used.
[0072]
Further, when the noise absorbing parts 1 to 4 are small, or when the signal line 9 is soft and a small holding force is sufficient, the base portions 15 and 45 and the details 16 and 16a to 16d and 46 are not provided. The hinge portions 14, 14a, 44 may be provided directly on the 17a-17d, 47. Specifically, taking the signal line holding member 6 as an example, the signal line holding member 6c is as shown in FIG.
[0073]
Further, after the noise absorbing parts 1 to 5 are attached to the signal lines 9 and 9a, the rod-like parts 17, 17a to 17d protruding from the surface of the noise absorbing parts 1 to 5 are provided so as not to disturb other operations. The belt-like pressing portion 68 may be cut to a required length.
[0074]
Moreover, although the shape of the guide part 64 of the noise absorbing component 5 is an arc shape, the shape is not limited to this and may be a linear shape or the like.
[0075]
【The invention's effect】
As is clear from the above explanation, since the signal line is pressed and held by the bar-shaped part of the holding part, even if there are variations in the diameter and hardness of the signal line, it can be flexibly handled by adjusting the bar-shaped part. be able to.
[0076]
In addition, since the signal line holding member has two holding portions each having a bar-like part, the signal line can be held between the two bar-like parts, and the signal line holding force can be improved.
[0077]
Further, by arranging two adjacent pressing portions in a substantially V shape, the contact length between the signal line and the rod-shaped portion can be increased, and the holding force can be further improved.
[0078]
Further, since the lid has a structure for pressing the holding portion, the claw portion provided on the rod-like portion is unlikely to come off from the locking portion, and the durability of holding the signal line can be improved.
[0079]
In addition, by winding the signal line with the belt-shaped holding part and holding the signal line, even if there is a variation in the diameter or hardness of the signal line, it can be flexibly handled by adjusting the holding part. It is possible to facilitate fine adjustment of the signal line holding force.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of a noise absorbing component according to the present invention.
2 is an external perspective view of the noise absorbing component shown in FIG. 1. FIG.
FIG. 3 is a plan view for explaining a procedure for attaching the noise absorbing component shown in FIG. 2 to a signal line;
4 is a plan view showing a state in which the noise absorbing component shown in FIG. 2 is attached to a small-diameter signal line. FIG.
FIG. 5 is an exploded perspective view showing a second embodiment of the noise absorbing component according to the present invention.
6 is a plan view for explaining a procedure for attaching the noise absorbing component shown in FIG. 5 to a signal line. FIG.
7 is a plan view showing a state in which the noise absorbing component shown in FIG. 5 is attached to a small-diameter signal line. FIG.
FIG. 8 is an exploded perspective view showing a third embodiment of a noise absorbing component according to the present invention.
9 is a plan view for explaining a procedure for attaching the noise absorbing component shown in FIG. 8 to a signal line. FIG.
10 is a plan view showing a state in which the noise absorbing component shown in FIG. 8 is attached to a small-diameter signal line.
11 is a plan view when the noise absorbing component shown in FIG. 8 is more strongly attached to a signal line. FIG.
FIG. 12 is an exploded perspective view showing a fourth embodiment of a noise absorbing component according to the present invention.
13 is an exploded perspective view for explaining an assembly procedure of the signal line holding member shown in FIG. 12. FIG.
14 is a partially enlarged side view showing a state in which the rod-like portion and the locking portion shown in FIG. 12 are engaged with each other.
15 is a plan view in which a lid is omitted for explaining a procedure for attaching the noise absorbing component shown in FIG. 12 to a signal line;
16 is a plan view showing a state in which the noise absorbing component shown in FIG. 12 is attached to a small-diameter signal line.
FIG. 17 is an exploded perspective view showing a fifth embodiment of a noise absorbing component according to the present invention.
18 is a plan view for explaining a procedure for attaching the noise absorbing component shown in FIG. 17 to a signal line. FIG.
19 is an enlarged perspective view of a locking portion of the signal line holding member shown in FIG.
FIG. 20 is a perspective view showing a modified example of the locking portion.
FIG. 21 is a perspective view showing a modification of the signal line holding member.
FIG. 22 is an external perspective view showing a conventional noise absorbing component.
FIG. 23 is a cross-sectional view showing another conventional noise absorbing component.
FIG. 24 is an exploded perspective view showing still another conventional noise absorbing component.
[Explanation of symbols]
1-5 ... Noise absorbing parts
6, 6a, 6b, 6c, 7, 8, ... signal line holding member
10 ... cylindrical core
10a: Signal line insertion hole
11, 41, 61 ... Base
11a, 41a, 51a, 61a ... signal line holes
14, 44, 49 ... Hinge part
17, 17a, 17b, 17c, 17d, 47 ... rod-shaped part
18, 18a, 18b, 18c, 18d, 48, 68 ... holding part
31a-31d, 32a-32d, 33a-33d, 34-37, 50, 63 ... locking part
51 ... Lid
53 ... Claw
64 ... guide section
65 ... nail part
69: substantially sawtooth wave shape

Claims

A cylindrical magnetic core having a signal line insertion hole;
A signal line holding member joined to an end of the cylindrical magnetic core,
The signal line holding member has a base having a signal line hole, a pressing part for pressing the signal line, and a locking part for locking the pressing part,
The locking portion has a protruding shape, and is provided on the peripheral edge of the surface of the base.
The holding part has a rod-like part, is hinged to the base, is bent at the hinge part, and is disposed on the surface of the base.
Noise absorbing parts characterized by

The noise absorbing component according to claim 1, wherein the signal line holding member has two holding portions each having a rod-like portion.

The noise absorbing component according to claim 2, wherein the two adjacent pressing portions are arranged in a substantially V shape.

A cylindrical magnetic core having a signal line insertion hole;
A signal line holding member joined to an end of the cylindrical magnetic core,
The signal line holding member has a base having a signal line hole, a holding part for holding the signal line , a locking part for locking the holding part, and a signal line hole. and a lid,
The base and the lid are hinged,
The holding part having the base and the rod-like part is hinged,
The substantially wave-shaped locking portion is provided at the peripheral edge of the surface of the base,
A claw portion that engages with the substantially wave-shaped locking portion is provided on the rod-shaped portion of the holding portion,
The holding part is bent at the hinge part and arranged on the surface of the base,
The lid is folded at a hinge portion and covers the base in a state where the holding portion is disposed between the base and the base;
Noise absorption parts it said.