JP2004224195A

JP2004224195A - Mounting structure of sun visor for vehicle

Info

Publication number: JP2004224195A
Application number: JP2003014354A
Authority: JP
Inventors: Hozumi Noda; 穂積野田; Masahiro Kamimoto; 理宏神本
Original assignee: Nishikawa Kasei Co Ltd
Current assignee: Daikyo Nishikawa Corp
Priority date: 2003-01-23
Filing date: 2003-01-23
Publication date: 2004-08-12

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a sun visor for a vehicle structured so that a plate-form body of a sun visor is supported by a stay on a vehicle body rotatably around the stay axis in such an arrangement as to be capable of being changed over between an accommodated position and a light shutoff position, whereby the sun visor body 3 can be rotated to the accommodation position without emitting an uncomfortable beating sound while the structure remains simple. <P>SOLUTION: The sun visor body 3 is formed with fitting holes 21a and 23a in which the stay 3 is fitted in such a way that the sun visor body 3 is rotatable, and the arrangement further includes a flat spring 29 to energize rotationally the sun visor body 3 positioned in the neighborhood of the accommodation position toward the accommodation position and O-rings 25, 25 mounted on the peripheral surface of the stay 5 and braking the rotation of the sun visor body 3 while it is in pressure contact with the internal circumferential surfaces of the holes 21a and 23a. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、車両の運転席や助手席への直射光を遮るために取り付けられる車両用サンバイザの取付構造に関する技術分野に属する。
【０００２】
【従来の技術】
一般に、この種の車両用サンバイザは、車体に対しステーにより該ステーの軸線回りに回動可能に支持された板状サンバイザ本体を備え、このサンバイザ本体を格納位置と遮光位置とに切り替えるようにしたものである。
【０００３】
このような車両用サンバイザの取付構造として、従来、上記格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段をサンバイザ本体又は車体に設けたものが知られている。
【０００４】
例えば、サンバイザ本体の嵌入孔に車体側のステーを嵌入し、このステーをサンバイザ本体内の付勢手段（板バネ）内に挿通保持することで、サンバイザ本体が回動可能に支持される取付構造において、上記板バネの内周面の所定位置に平坦な当接面を設ける一方、この当接面に対応する位置のステー外周面に平面状の節度部を凹設し、遮光範囲内では、板バネを拡張状態として、その当接面をステーの節度部の設けられていない外周面に摺接させることで、サンバイザ本体が不意に垂れ下がらないようにステーを板バネによって一定の力で押圧保持して該サンバイザ本体の回動位置を任意の位置に設定し、運転席の乗員への直接光を遮る。そして、サンバイザ本体を遮光範囲からさらに車体内装板側（格納位置側）に回動させ、その格納位置近傍に達すると、上記板バネの当接面とステーの節度部とが重合し、拡張していた板バネの復元力が作用してサンバイザ本体を格納位置に向かって回動させ、このことによりサンバイザ本体が自動的に格納位置に格納されるようにしている。
【０００５】
ところで、このように格納位置近傍にあるサンバイザ本体を格納位置に向けて回動付勢するようにすると、そのサンバイザ本体が急激に格納位置に向かったときに、サンバイザ本体が車体内装板に衝突して不快な叩き音を発生する場合があった。
【０００６】
そこで、従来、例えば、サンバイザ本体に設けられた軸受ケースとステーとの間に付勢手段の格納力を減衰するためのオイル式ダンパ装置を設けるものが知られている（例えば、特許文献１参照）。
【０００７】
また、車室上部に回動可能に保持される支承バーがステーと同心状にサンバイザ本体に設けられ、この支承バーに、付勢手段の格納力に抗してサンバイザ本体の回動を制動させるオイル式ダンパ装置を設けたものが提案されている（例えば、特許文献２参照）。
【０００８】
【特許文献１】
特開平１１−１５７３３４号公報
【特許文献２】
特開２００２−１９２９４７号公報
【０００９】
【発明が解決しようとする課題】
しかし、上記特許文献１のものでは、オイル式のダンパ装置が設けられているため、構造が複雑で部品点数も多く、製造コストが高い。また、上記特許文献２のものでは、オイル式ダンパ装置が設けられているために高価であるとともに、このオイル式ダンパ装置を車体側のフックと係合しない状態でサンバイザ本体を回動させた場合、ダンパ装置が作動しないという問題がある。
【００１０】
本発明は斯かる点に鑑みてなされたものであり、その目的とするところは、ステーを支持する構造に工夫を加えることにより、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体を格納位置に回動させようとすることにある。
【００１１】
【課題を解決するための手段】
上記の目的を達成するために、請求項１の発明では、板状サンバイザ本体が車体に対しステーにより該ステーの軸線回りに回動可能に支持されて格納位置と遮光位置とに切り替わるようにした車両用サンバイザの取付構造を前提とする。
【００１２】
そして、上記サンバイザ本体には該サンバイザ本体が回動可能なように上記ステーを嵌入する嵌入孔が形成され、上記格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、嵌入孔の内周面又はステーの外周面の一方に装着され、嵌入孔の内周面又はステーの外周面の他方に圧接してサンバイザ本体の回動を制動するＯリングとを備える。
【００１３】
上記の構成によると、サンバイザ本体を遮光位置から格納位置に回動させる際、その格納位置近傍において、付勢手段による付勢力（以下、格納力という）が働き、この格納力により、サンバイザ本体が急激に格納位置に向かって回動しようとする。しかし、サンバイザ本体の嵌入孔の内周面又はステー外周面の一方にＯリングが装着され、このＯリングが嵌入孔の内周面又はステーの外周面の他方に圧接しているので、そのＯリングの圧接に伴う摩擦力によって上記サンバイザ本体の回動を制動することができる。
【００１４】
そのとき、付勢手段とＯリングとが同一のステー周辺に設けられているので、サンバイザ本体を滑らかに回動させることができる。
【００１５】
さらに、サンバイザ本体の嵌入孔の内周面又はステー外周面の一方にＯリングを装着するという簡単な構造であるため、部品点数が少なく安価である。
【００１６】
したがって、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体を格納位置に回動させることができる。
【００１７】
請求項２の発明では、上記請求項１の発明の前提と同様の車両用サンバイザの取付構造において、ステーはサンバイザ本体から一体的に突出する突出部を有する一方、車体には突出部を回動可能に嵌入する嵌入孔が形成され、格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、嵌入孔の内周面又は突出部の外周面の一方に装着され、嵌入孔の内周面又は突出部の外周面の他方に圧接してサンバイザ本体の回動を制動するＯリングとを備える。
【００１８】
上記の構成によると、サンバイザ本体から一体的に突出する突出部を車体の嵌入孔に嵌入することで、サンバイザ本体が回動可能に支持されている場合において、サンバイザ本体が格納位置近傍で付勢手段の格納力により格納位置に急激に回動しようとしても、Ｏリングの摩擦力が請求項１と同様にサンバイザ本体の回動を制動するように作用する。このことにより、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体を格納位置に回動させることができる。
【００１９】
請求項３の発明では、板状の第１及び第２平面体を重合して形成した板状サンバイザ本体が車体に対しステーにより該ステーの軸線回りに回動可能に支持されて格納位置と遮光位置とに切り替わるようにした車両用サンバイザの取付構造を前提とする。
【００２０】
そして、上記サンバイザ本体には該サンバイザ本体が回動可能なように上記ステーを嵌入する嵌入孔が形成され、上記格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、ステーの外周面に装着され、半径方向外側に突出する制動部を形成するＯリングと、サンバイザ本体の内部に設けられ、付勢手段によりサンバイザ本体が格納位置に向けて回動するときに、Ｏリングの制動部と当接してサンバイザ本体の回動を制動する突起部とを備える。
【００２１】
上記の構成によると、サンバイザ本体が遮光位置から格納位置に回動される際の格納位置近傍において、付勢手段の格納力によりサンバイザ本体が急激に格納位置に向かって回動しようとする。しかし、このとき、ステーの外周面に装着されて半径方向外側に突出するＯリングの制動部が、サンバイザ本体の内部に設けられた突起部に当接するので、サンバイザ本体が急激に回動しようとしても、このＯリングの摩擦力によってその回動が制動される。
【００２２】
したがって、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体を格納位置に回動させることができる。
【００２３】
請求項４の発明では、上記請求項１の発明の前提と同様の車両用サンバイザの取付構造において、ステーはサンバイザ本体から一体的に突出する突出部を有する一方、車体には突出部を回動可能に嵌入する嵌入孔が形成され、格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、突出部の外周面に装着され、半径方向外側に突出する制動部を形成するＯリングと、車体に設けられ、付勢手段によりサンバイザ本体が格納位置に向けて回動するときに、Ｏリングの制動部と当接してサンバイザ本体の回動を制動する突起部とを備える。
【００２４】
上記の構成によると、サンバイザ本体から一体的に突出する突出部を車体の嵌入孔に嵌入することで、サンバイザ本体が回動可能に支持されている場合において、サンバイザ本体が格納位置近傍で付勢手段の格納力により格納位置に急激に回動しようとしても、Ｏリングの摩擦力が請求項３と同様にサンバイザ本体の回動を制動するように作用するので、不快な叩き音を発生させずにサンバイザ本体を格納位置に回動させることができる。
【００２５】
【発明の実施の形態】
（実施形態１）
以下、本発明の実施形態１を図面に基づいて説明する。なお、以下の実施形態は、本質的に好ましい例示に過ぎず、本発明、その適用物や用途の範囲を制限することを意図するものでは全くない。
【００２６】
図１〜図６はこの発明の実施形態１に係る車両用サンバイザ１を示し、このサンバイザ１は、車幅方向に延びて所定の遮光面積を有する偏平な長尺の樹脂製板状体からなる略矩形状のサンバイザ本体３を備えている。このサンバイザ本体３は車体内装板７に、Ｌ字形の円柱状ステー５により、該ステー５の鉛直軸部５ａ回りにほぼ水平方向へ揺動するとともに、水平軸部５ｂ回りに前後回りに回動して車体パネルＰに設けられた車体内装板７に沿うように位置する格納位置（図６実線の状態）と、車両のフロントウインドＷ内面に沿うように位置する遮光位置（図６仮想線の状態）とに切り替え可能に支持されている。
【００２７】
上記サンバイザ本体３は、図３及び図４に示すように、遮光状態で車室内の車体内装板７側となる縁端においてステー５と反対側（車体左側）の位置に略矩形状の切欠部９を有している。この切欠部９には、該切欠部９を開口側で橋渡しするようにサンバイザ１の長さ方向に延びる支承バー１１が一体に設けられている。この支承バー１１は、上記ステー５の水平軸部５ｂの延長線に一致するように配設されており、支承バー１１を車体内装板７に配設されたブラケット３３（図６にのみ示す）に嵌合することで、この支承バー１１をステー５の水平軸部５ｂと共に回動軸として、これらの回りにサンバイザ１を前後回りに回動可能としている。なお、上記支承バー１１はサンバイザ本体３と一体ではなく、別体に設けてもよい。
【００２８】
そして、上記サンバイザ本体３は、その格納姿勢において車幅方向（サンバイザ本体３の長さ方向）に延びる中央の断面Ｖ字形の薄肉ヒンジ１３を境に、運転室側に面して表面部を構成する第１平面体１５と、車体内装板７側に面して裏面部を構成する第２平面体１７とに厚み方向に対称に２分割されて半割形状に形成されている。上記第１平面体１５は、平面部１５ａと該平面部１５ａ外周縁部に一体に立設された側壁部１５ｂとで構成され、上記第２平面体１７も同様に、平面部１７ａと該平面部１７ａ外周縁部に立設された側壁部１７ｂとで構成され、これら第１平面体１５及び第２平面体１７は共に深さの浅い皿状に形成されている。第１平面体１５及び第２平面体１７は、上記薄肉ヒンジ１３を中心に折り曲げられて上記側壁部１５ｂ，１７ｂを互いに突き合わせることにより、重合されて偏平板状に組み合わされ、内部に中空部１８（図２にのみ示す）が形成されている。
【００２９】
上記第１平面体１５においてサンバイザ１の上記切欠部９となる部分に上記支承バー１１が一体形成されている一方、上記第２平面体１７側の切欠部９となる部分のサンバイザ本体３の長さ方向両側の側壁部９ａ，９ａには、上記支承バー１１に対向する位置に、この支承バー１１の外径に対応して半円形状に凹陥した支承凹部１９，１９が形成されており、両平面体１５，１７をヒンジ１３回りに折り畳んで両者を重合した状態で、支承凹部１９，１９に支承バー１１の両端部が嵌合される。
【００３０】
図３に示すように、上記第１平面体１５の平面部１５ａ内面において、薄肉ヒンジ１３と反対側の側壁部１５ｂ近傍の車幅方向一端側には一対の第１支軸部２１，２２が車幅方向に間隔を有して立設されている。一方、上記第２平面体１７の薄肉ヒンジ１３と反対側の側壁部１７ｂ近傍の車幅方向一端側には一対の第２支軸部２３，２４が上記第１支軸部２１，２２に略対応するよう車幅方向に間隔を有して立設されており、第１及び第２平面体１５，１７を互いに重合させたときに、第１支軸部２１，２２が第２支軸部２３，２４間に位置して車幅方向に一列に並び、一方の第１支軸部２１と一方の第２支軸部２３とが、また他方の第１支軸部２２と他方の第２支軸部２４とがそれぞれ重なるようになっている。そして、第１及び第２支持部２１，２３と第１及び第２支持部２２，２４との各々に形成された嵌入孔２１ａ，２３ａ及び嵌入孔２２ａ，２４ａがステー５を回動可能に嵌入できるようにそれぞれ連通している。
【００３１】
上記第１平面体１５の平面部１５ａ内面において上記の第１支軸部２１，２２間近傍には、ビス穴２７ａ（図２にのみ示す）を有する取付座２７が一体に形成され、該取付座２７に、格納位置近傍に位置するサンバイザ本体３を格納位置に向けて回動付勢する付勢手段としての板バネ２９が取り付けられている。具体的には、図２に示すように、板バネ２９は、略矩形状のバネ鋼の両端部２９ｂ，２９ｂを重合させた状態で中間部２９ａを略楕円形状（ループ状）に折り曲げたもので、該両端部２９ｂ，２９ｂには各々を重ねた状態で同心状となる挿入孔２９ｃ，２９ｃが形成され、この挿入孔２９ｃ，２９ｃにビス３１を挿入して上記取付座２７のビス孔に螺合締結することにより、板バネ２９の中間部２９ａを上記一対の第１支軸部２１，２２間に配置して取付座２７に取付固定されている。
【００３２】
そして、上記板バネ２９の中間部２９ａにはその裏側（第２平面部１７側）の一部を内側に突出するように折り曲げた突起部２９ｄが形成されている。一方、図２及び図４に示すように、上記ステー５の水平軸部５ｂ先端側の外周面には、その一部を断面略Ｖ字状に切り欠いてなる節度部５ｃが凹設されており、互いに重ね合わされたサンバイザ本体３の第１支軸部２１及び第２支軸部２３の嵌入孔２１ａ，２３ａと第１支軸部２２及び第２支軸部２４の嵌入孔２２ａ，２４ａとに上記水平軸部５ｂを回動可能に挿入したとき、板バネ２９の中間部２９ａにステー５の節度部５ｃが配置されるようになっている。そして、サンバイザ本体３が遮光範囲内にあるときは、板バネ２９の突起部２９ｄがステー５の節度部５ｃの設けられていない外周面に押圧状態で摺接し、ステー５が板バネ２９の圧縮力により一定の力で押圧されてサンバイザ本体３が不意に垂れ下がらない。このようにして、乗員の好みの位置にサンバイザ本体３の遮光位置を設定保持するようになっている。一方、サンバイザ本体３を遮光位置から前回りに回動させて車体内装板７に沿う格納位置に位置付けようとしたときに、板バネ２９の突起部２９ｄとステー５の節度部５ｃとが重合し始めると、拡張されていた板バネ２９が元の形状に戻ろうとする力によって、サンバイザ本体３が車体内装板７に向かって回動付勢するようにしている。
【００３３】
さらに、図１及び図４に示すように、ステー５の水平軸部５ｂ基端側（鉛直軸部５ａ側）の外周面には環状溝５ｄが全周に亘り設けられ、この環状溝５ｄには、サンバイザ本体３の回動を制動するＯリング２５，２５が装着されている。そして、上記ステー５の水平軸部５ｂの環状溝５ｄにＯリング２５，２５を装着した状態で、互いに重ね合わされたサンバイザ本体３に上記水平軸部５ｂを回動可能に挿入したとき、Ｏリング２５，２５が嵌入孔２１ａ，２３ａ内に圧接した状態で配置されるようになっている。このＯリング２５，２５の摩擦力により、サンバイザ本体３の急激な回動が制動されるようになっている。なお、Ｏリング２５の材質は本実施形態１では弾性のゴムであるが、これに限定されない。
【００３４】
次に、本実施形態１に係る車両用サンバイザ１を使用するときには、図５に示すように、サンバイザ本体３をステー５の水平軸部５ｂの軸心を中心として後回りに回動させてフロントウインドウＷ側の遮光範囲に位置付ける。この遮光範囲内では、ステー５が板バネ２９の圧縮力により一定の力で押圧され、サンバイザ本体３の回動位置が設定される。このようにして、サンバイザが適切な遮光位置に保持されて運転席の乗員への直接光が遮られる。
【００３５】
一方、車両用サンバイザ１を使用しないときには、サンバイザ本体３を上記遮光位置から前回りに回動させて車体内装板７に沿う格納位置に位置付ける。このとき、サンバイザ本体３を上記遮光位置からさらに車体内装板７側に回動させて格納動作範囲に至ると、板バネ２９の突起部２９ｄとステー５の節度部５ｃとが重合し始める。すると、拡張されていた板バネ２９が元の形状に戻ろうとする力によって、サンバイザ本体３が車体内装板７に向かって回動するように付勢する格納力が発生する。
【００３６】
しかし、ステー５の環状溝５ｄに装着されたＯリング２５，２５が第１支軸部２１及び第２支軸部２３の嵌入孔２１ａ，２３ａに圧接しているので、上記格納力によりサンバイザ本体３が急激に回動しようとしても、このＯリング２５，２５の摩擦力によってその回動が制動される。
【００３７】
そして、上記板バネ２９の突起部２９ｄとステー５の節度部５ｃとが完全に重合すると、サンバイザ本体３が格納位置に保持される。
【００３８】
したがって、本発明の実施形態１に係る車両用サンバイザ１の取付構造によると、板バネ２９とＯリング２５，２５とが同一のステー５周辺に設けられているので、サンバイザ本体３を滑らかに回動させることができる。さらに、ステー５の外周面に環状溝５ｄを設け、その環状溝５ｄにＯリング２５，２５を装着するという簡単な構造であるため、部品点数が少なく安価である。
【００３９】
よって、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体３を格納位置に回動させることができる。
【００４０】
なお、上記実施形態１では、ステー５の水平軸部５ｂ外周面に断面Ｖ字状の節度部５ｃを凹設したが、この節度部を、外周面の一部をステー５の軸線と略平行に切り欠いた平坦面からなるものとしてもよい。この場合には板バネ２９に突起部２９ｄに代えた平面状の部分を設ければよい。
【００４１】
また、上記実施形態１では、ステー５の環状溝５ｄを水平軸部５ｂにおけるサンバイザ本体３の長さ方向外側の第１及び第２支持部２１，２３の嵌入孔２１ａ，２３ａに対応する位置に設け、この環状溝５ｄにＯリング２５，２５を設けたが、これに替えてステー５のさらに先端側、すなわちサンバイザ本体３の長さ方向内側の第１及び第２支持部２２，２４の嵌入孔２２ａ，２４ａに対応するステー外周面に環状溝を設け、この環状溝にＯリングを装着してもよい。この場合には、ステーの先端側の外径を他の外周面の外径よりも小さくし、この小径部に環状溝を設けるとよい。このことで、環状溝にＯリングを設けたままでも板バネの内部を通過させることができるので、サンバイザ本体にステーを嵌入することが可能となる。
【００４２】
また、上記の実施形態１では、第１平面体１５側の第１支軸部２１，２２間に板バネ２９を配置したが、第２平面体１７側の第２支軸部２３，２４間に板バネ２９を配置してもよい。
【００４３】
さらに、上記の実施形態１では、第２支軸部２３，２４間を第１支軸部２１，２２間よりも広くして、第２支軸部２３，２４で第１支軸部２１，２２を外側から挟むようにしたが、これとは逆に第１支軸部２１，２２間を第２支軸部２３，２４間よりも広くして、第１支軸部２１，２２で第２支軸部２３，２４を外側から挟むようにしてもよく、さらには、第１支軸部２１，２２の同じ側の側面に第２支軸部２３，２４をそれぞれ隣接するように形成してもよい。
【００４４】
また、上記実施形態１では、第１平面体１５及び第２平面体１７はヒンジ１３により一体形成したが、これらの平面体を別体に形成してもよい。
【００４５】
（実施形態２）
図７〜図９は本発明の実施形態２を示し（なお、以下の各実施形態では、図１〜図６と同じ部分については同じ符号を付してその詳細な説明は省略する）、この実施形態２では、サンバイザ本体４５の支持構造が上記実施形態１と異なる。
図９は車体パネルＰの車室側表面を覆う車体内装板７に設けられた車両用サンバイザ１を示す。この車体内装板７には、その一部を略矩形状に凹陥してなるサンバイザ収容部４１が形成されている。このサンバイザ収容部４１のうちの車体左下側部分には、他の部分よりも隆起したサンバイザ取付部４３が形成されている。図７に拡大詳示するように、このサンバイザ取付部４３内は空洞になっていて、その車幅方向右側の側壁には水平方向の中心を有する嵌入孔４３ａが開口され、この嵌入孔４３ａによりサンバイザ取付部４３の内外が連通している。
【００４６】
また、上記サンバイザ取付部４３近傍の車体内装板７（サンバイザ収容部４１）にはボルト挿通孔４１ａが、またこのボルト挿通孔４１ａに対応する車体パネルＰにはボルト挿通孔Ｐ１がそれぞれ同じ軸線上に貫通形成され、この車体パネルＰの裏側（車体前側）にはボルト挿通孔Ｐ１に対応してウエルドナット５１が固着されている。
【００４７】
上記サンバイザ１は、車幅方向に長い略矩形板状に形成されたサンバイザ本体４５と、このサンバイザ本体４５の下部に一体に形成されたステー４７とを一体形成した樹脂成形品からなり、ステー４７はサンバイザ本体４５から車体左側に向けて略水平方向に突出する突出部４７ａを有する。
【００４８】
上記サンバイザ本体４５は、その格納位置における車体左下側（図９の左下側）に位置する角部を略矩形状に切り欠いてなる切欠部４５ａを有し、この切欠部４５ａに対応するサンバイザ本体４５裏側に上記ステー４７が突出部４７ａを切欠部４５ａ内に突出させるように一体的に形成されている。そして、図８に拡大詳示するように、ステー４７の突出部４７ａには、そのサンバイザ本体４５が格納位置で表側となる部分に、外周部の一部をステー４７の軸線と略平行に切り欠いた平坦面からなる節度部４７ｂが設けられている。
【００４９】
上記車体内装板７のサンバイザ取付部４３の内部には、上記格納位置近傍に位置するサンバイザ本体４５を格納位置に向けて回動付勢する付勢手段としての板バネ４９が設けられている。この板バネ４９は、矩形板状のバネ鋼を両端部４９ｂ，４９ｂが重なるように略ｂ字状に折り曲げ成形したもので、互いに重なった両端部４９ｂ，４９ｂには、ビス３１が挿通される挿入孔４９ｃが形成され、中間部４９ａは左右方向に開口する略角筒状のものとされ、この中間部４９ａの内周には上記ステー４７の節度部４７ｂが当接する一対の平坦な第１及び第２当接面４９ｄ，４９ｅが対向するように設けられている。なお、車体内装板７、板バネ４９の両端部４９ｂ，４９ｂ及び車体パネルＰの各ボルト挿通孔４１ａ，Ｐ１，３３ａにビス３１を挿通して車体パネルＰ裏面のナット５１に螺合締結することで、板バネ４９が車体内装板７と共にビス３１によって車体パネルＰに締結されている。
【００５０】
そして、上記ステー４７の突出部４７ａが上記サンバイザ取付部４３の嵌入孔４３ａに嵌入されて、節度部４７ｂの設けられた部分の突出部４７ａが板バネ４９の中間部４９ａ内に押し込まれている。このことにより、サンバイザ本体４５は、突出部４７ａが板バネ４９内周に押圧状態で摺接されて、ステー４７の軸心回りに略１８０°の回動範囲で回動可能に支持され、車体パネルＰに沿うように位置する格納位置（図８の実線状態）と、フロントウインドウＷの内面に沿うように位置する遮光位置（同図の仮想線の状態）とに切り替えられるようになっている。
【００５１】
上記サンバイザ本体４５が格納位置に切り替えられるときには、サンバイザ本体４５の回動により、ステー４７の節度部４７ｂが中間部４９ａの車体パネルＰと反対側の第１当接面４９ｄに当接し始め、拡張していた中間部４９ａが元の形状に戻ろうとする力で、サンバイザ本体４５が格納位置に回動付勢されるようになっている。そして、ステー４７の節度部４７ｂが中間部４９ａの第１当接面４９ｄに完全に重合することで、サンバイザ本体４５が格納位置に保持されるようになっている。
【００５２】
一方、上記サンバイザ本体４５が遮光位置に位置付けられるときには、サンバイザ本体４５の回動により、上記節度部４７ｂが中間部４９ａの車体パネルＰ側の第２当接面４９ｅに当接し始め、中間部４９ａの格納力によって、該サンバイザ本体４５が遮光位置に回動付勢されるようになっている。そして、ステー４７の節度部４７ｂが中間部４９ａの第２当接面４９ｅに完全に重合することで遮光位置に保持されるようになっている。
【００５３】
そして、図７に示すように、上記ステー４７の突出部４７ａの基端側（サンバイザ本体４５側）外周面には断面略矩形状の環状溝４７ｃが全周に亘り凹設され、この環状溝４７ｃにＯリング２５，２５が装着されている。このＯリング２５，２５が嵌入孔４３ａの内周面に圧接されるので、サンバイザ本体４５の急激な回動が、このＯリング２５，２５の摩擦力により制動されるようになっている。
【００５４】
次に、本実施形態２に係る車両用サンバイザ１の作用について説明すると、サンバイザ本体４５をステー４７の突出部４７ａの軸心を中心として後回りに回動させてフロントウインドウＷの内面に沿う遮光位置に位置付ける。この遮光位置近傍ではステー４７の節度部４７ｂが中間部４９ａの車体パネルＰ側の第２当接面４９ｅに当接し始め、拡張していた中間部４９ａが元の形状に戻ろうとする力で、該サンバイザ本体４５が格納位置に回動付勢される。このとき、ステー４７の環状溝４７ｃに装着されたＯリング２５，２５の摩擦力により、サンバイザ本体３が急激に回動しようとしても、その回動が制動される。そして、サンバイザ本体４５が制動されながら回動され、ステー４７の節度部４７ｂが中間部４９ａの第２当接面４９ｅに完全に重合することで、サンバイザ本体４５が遮光位置に保持される。このようにして、運転席の乗員への直接光が遮られる。
【００５５】
一方、車両用サンバイザ１を使用しないときには、サンバイザ本体４５を上記遮光位置から前回りに回動させて車体パネルＰに沿う格納位置に位置付ける。このとき、格納位置近傍の格納力発生位置では、ステー４７の節度部４７ｂが中間部４９ａの第１当接面４９ｄに当接し始め、板バネ４９の格納力によってサンバイザ本体４５が格納位置に向かって回動付勢される。このときも、ステー４７の環状溝４７ｃに装着されたＯリング２５，２５の摩擦力により、サンバイザ本体３が急激に回動しようとしても、その回動が制動される。そして、サンバイザ本体４５が制動されながら回動され、ステー４７の節度部４７ｂが中間部４９ａの第１当接面４９ｄに完全に重合することで、サンバイザ本体４５が格納位置に保持される。
【００５６】
したがって、この実施形態２に係る車両用サンバイザ１の取付構造によると、ステー４７外周面に環状溝４７ｃを設け、その環状溝４７ｃにＯリング２５，２５を装着するという簡単な構造で、不快な叩き音を発生させずにサンバイザ本体４５を格納位置に回動させるという上記実施形態１と同様の作用効果を得ることができる。
【００５７】
なお、上記実施形態２では、ステー４７をサンバイザ本体４５の裏側に一体に形成したが、ステーをサンバイザ本体の左側側面から突出させるように一体形成してもよい。
【００５８】
また、上記実施形態２では、突出部４７ａの環状溝４７ｃをサンバイザ取付部４３の嵌入孔４３ａに対応する位置に設け、この環状溝４７ｃにＯリング２５，２５を設けたが、板バネ４９よりも突出部先端側のサンバイザ取付部４３内面に車体パネルＰ側に突出する軸受部を設け、この軸受部に嵌入孔を設けてもよい。
そして、この嵌入孔に嵌入される突出部外周面に環状溝を設けて該環状溝にＯリングを装着する。この場合にも、突出部の先端側の外径を他の外周面の外径よりも小さくし、この小径部に環状溝を設けるとよい。
【００５９】
さらに、上記実施形態２では、ステー４７の突出部４７ａをサンバイザ本体４５の左側から突出させてサンバイザ本体４５を左側のサンバイザ取付部４３のみで保持するようにしたが、ステーをサンバイザ本体の右側からも突出させるとともに、車体内装板のサンバイザ取付部を左右２ヶ所に設け、サンバイザ本体を左右両側のサンバイザ取付部で保持するようにしてもよい。この場合には、Ｏリング及び板バネを左右両側のサンバイザ取付部に設けてもよく、あるいはどちらか一方のサンバイザ取付部のみに設けてもよい。但し、サンバイザ本体の回動を滑らかにするために、Ｏリング及び板バネは同じ箇所にセットで設けるのが望ましい。
【００６０】
また、上記実施形態１及び２では、ステーの外周面側に環状溝を設けて、この環状溝にＯリング２５，２５を装着したが、サンバイザ本体側又は車体内装板側の嵌入孔の内周に環状溝を設け、この環状溝にＯリングを装着してもよい。
【００６１】
さらに、上記実施形態１及び２では、ステーの外周面に環状溝を設けて、この環状溝にＯリング２５，２５を装着したが、環状溝を設けずにステー又は突出部の外周面にＯリングの抜け止めを突設させて、その間にＯリングを設けるようにしてもよい。
【００６２】
また、上記実施形態１及び２では、Ｏリング２５を２本設けたが、その本数には限られず、１本又は３本以上のＯリングを設けてもよい。
【００６３】
（実施形態３）
図１０〜図１２は本発明の実施形態３を示し、Ｏリング２５による制動構造が異なる点で上記実施形態１と異なる。すなわち、この実施形態では、上記実施形態１と同様に、ステー５はサンバイザ本体３に形成された嵌入孔２１ａ，２２ａ，…にサンバイザ本体３が回動可能に嵌入されているが、これらの嵌入孔２１ａ，２２ａ，…のうち、例えば第１支軸部２１の嵌入孔２１ａ内面には、該嵌入孔２１ａの半径方向内側に向かって突出する断面略矩形状の突起部２１ｂが所定の位置に設けられている。
【００６４】
一方、上記嵌入孔２１ａに対応するステー５の水平軸部５ｂの外周面には、周方向の一部で連続の途切れた略環状のＯリング用凹溝６１が設けられている。このＯリング用凹溝６１は断面略矩形状のもので、その連続していない部分は非凹溝部６３を形成している。
【００６５】
上記ステー５のＯリング用凹溝６１内にＯリング２５が装着されている。この状態では、Ｏリング２５のうち、上記非凹溝部６３を覆う部分がステーの半径方向外側に隆起してサンバイザ本体３を制動する制動部６５が形成される。この制動部６５が上記嵌入孔２１ａの突起部２１ｂと摺接することで、サンバイザ本体３の回動を制御するようにしている。具体的に、制動部６５は、サンバイザ本体３が格納位置に向けて回動されるときに嵌入孔２１ａの突起部２１ｂが最初に当接する第１制動部６５ａと、非凹溝部６３の外周方向直上の第２制動部６５ｂと、サンバイザ本体３の格納位置で突起部２１ｂが当接してサンバイザ本体３を保持する第３制動部６５ｃとからなる。
【００６６】
次に、本発明の実施形態３に係る車両用サンバイザ１の作動について説明する。図１１は、フロントウインドＷに沿う遮光位置にあるステー５の非凹溝部６３と第１支軸部２１の嵌入孔２１ａの突起部２１ｂとの位置関係を示す。この遮光位置にあるサンバイザ本体３をその格納位置に向けて矢印Ａ方向に回動したときに、ステー５の節度部５ｃの位置に板バネ２９の突起部２９ｄが重合し始め、板バネ２９の格納力によってサンバイザ本体３に該サンバイザ本体３を格納位置に向かって急激に回動させようとする格納力が発生する。このとき、Ｏリング２５の制動部６５の第１制動部６５ａが嵌入孔２１ａの突起部２１ｂに当接し、Ｏリング２５と突起部２１ｂとの間で摩擦力が作用し始める。
【００６７】
さらに、サンバイザ本体３は板バネ２９の格納力により、格納位置に向かって回動されるが、この格納力は嵌入孔２１ａの突起部２１ｂがＯリング２５の制動部６５の第２制動部６５ｂを乗り越えようとする力に弱められ（なお、第２制動部６５ｂは直径方向に圧縮されている）、サンバイザ本体３はゆっくりと回動される。このため、従来のようにサンバイザ本体３が急激に回動して車体内装板７に打ち付けられるようなことはない。
【００６８】
そして、サンバイザ本体３が格納位置に達すると、嵌入孔２１ａの突起部２１ｂを乗り越えた制動部６５の第３制動部６５ｃが突起部２１ｂの側面に当接し、このことでサンバイザ本体３は格納位置に保持される。
【００６９】
したがって、実施形態３に係る車両用サンバイザ１の取付構造によると、サンバイザ本体３が遮光位置から格納位置に回動される際に、格納位置近傍において、板バネ２９の格納力によりサンバイザ本体３が急激に格納位置に向かって回動しようとするとき、ステー５のＯリング用凹溝６１に装着されたＯリング２５の制動部６５が嵌入孔２１ａの突起部２１ｂに当接するので、サンバイザ本体３の急激な回動がＯリング２５の摩擦力によって制動される。
【００７０】
よって、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体３を格納位置に回動させることができる。
【００７１】
なお、上記実施形態３では、Ｏリング２５をサンバイザ本体３の長さ方向外側の第１支軸部２１の嵌入孔２１ａに対応する位置のステー５の水平軸部５ｂ外周面に設けたが、その位置に限らず、他の嵌入孔２１ｂ，２１ｃ，…に対応する位置に設けてもよい。例えば、サンバイザ本体３の長さ方向外側の第２支軸部２３の嵌入孔２３ａに対応するステー５外周面にＯリング２５を設けてもよく、このときには、第１支軸部２１の嵌入孔２１ａの内径をステー５の外径よりも若干大きくして軸受機能を持たせるようにしてもよい。
【００７２】
また、上記実施形態３では、上記第１支軸部２１の嵌入孔２１ａに突起部２１ｂを設けたが、第２平面体１７の平面部１７ａ内面のいずれの位置に設けてもよい。要は、板バネが格納位置近傍に位置するサンバイザ本体を格納位置に向けて付勢し始めるときに、Ｏリングの制動部に突起部が当接するようにすればよい。
【００７３】
また、上記実施形態３ではＯリング２５を１本のみ設けたが２本以上のＯリングを設けてもよい。この場合には、ステーのＯリング用凹溝及び嵌入孔の突起部の幅を拡げればよい。
【００７４】
さらに、上記実施形態３は、サンバイザ本体の支持構造を実施形態１と同様のものとして説明したが、実施形態２のサンバイザ本体の支持構造を採用できることは勿論である。この場合にも、板バネによるサンバイザ本体に対する格納力が発生するときに、Ｏリングの制動部が嵌入孔の突起部に当接し始めるようにすればよい。
【００７５】
【発明の効果】
以上説明したように、請求項１の発明の車両用サンバイザの取付構造では、板状サンバイザ本体に該サンバイザ本体が回動可能なようにステーを嵌入する嵌入孔を形成し、格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、嵌入孔の内周面又はステーの外周面の一方に装着され、嵌入孔の内周面又はステーの外周面の他方に圧接してサンバイザ本体の回動を制動するＯリングとを設けた。また、請求項２の発明の車両用サンバイザの取付構造では、ステーにサンバイザ本体から一体的に突出する突出部を設ける一方、車体に突出部を回動可能に嵌入する嵌入孔を形成し、格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、嵌入孔の内周面又は突出部の外周面の一方に装着され、嵌入孔の内周面又は突出部の外周面の他方に圧接してサンバイザ本体の回動を制動するＯリングとを設けた。請求項３の発明の車両用サンバイザの取付構造では、板状の第１及び第２平面体を重合して形成したサンバイザ本体に該サンバイザ本体が回動可能なようにステーを嵌入する嵌入孔を形成し、格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、ステーの外周面に装着され、半径方向外側に突出する制動部を形成するＯリングと、サンバイザ本体の内部に設けられ、付勢手段によりサンバイザ本体が格納位置に向けて回動するときに、Ｏリングの制動部と当接してサンバイザ本体の回動を制動する突起部とを設けた。請求項４の発明の車両用サンバイザの取付構造では、ステーにサンバイザ本体から一体的に突出する突出部を設ける一方、車体に突出部を回動可能に嵌入する嵌入孔を形成し、格納位置近傍に位置するサンバイザ本体を格納位置に向けて回動付勢する付勢手段と、突出部の外周面に装着され、半径方向外側に突出する制動部を形成するＯリングと、車体に設けられ、付勢手段によりサンバイザ本体が格納位置に向けて回動するときに、Ｏリングの制動部と当接してサンバイザ本体の回動を制動する突起部と設けた。これらの発明によると、簡単な構造で、不快な叩き音を発生させずにサンバイザ本体を格納位置に回動させることができる。
【図面の簡単な説明】
【図１】本発明の実施形態１に係るサンバイザのサンバイザ本体が遮光位置にあるときの嵌入孔周辺部分を示す拡大断面図である。
【図２】サンバイザ本体が遮光位置にあるときの板バネ部分を示す拡大断面図である。
【図３】展開状態のサンバイザ本体を示す斜視図である。
【図４】ステー及びその取付け前のサンバイザ本体を示す斜視図である。
【図５】サンバイザの使用位置を示す図である。
【図６】本発明の実施形態１に係るサンバイザの格納状態を示す斜視図である。
【図７】実施形態２に係るサンバイザの取付構造を示す図１相当図である。
【図８】図９のＶＩＩＩ−ＶＩＩＩ線断面図である。
【図９】本発明の実施形態２に係るサンバイザの格納状態を示す正面図である。
【図１０】本発明の実施形態３に係るサンバイザの取付構造を示す図１相当図である。
【図１１】図１０のＸＩ−ＸＩ線断面図である。
【図１２】ステーのＯリング用凹溝を示す斜視図である。
【符号の説明】
１車両用サンバイザ
３，４５サンバイザ本体
５，４７ステー
７車体内装板（車体）
２１ａ，２３ａ，４３ａ嵌入孔
２１ｂ突起部
２５Ｏリング
２９，４９板バネ（付勢手段）
４７ａ突出部
６５制動部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to a technical field related to a mounting structure of a vehicle sun visor that is mounted to block direct light to a driver's seat and a passenger seat of a vehicle.
[0002]
[Prior art]
In general, this type of vehicle sun visor includes a plate-shaped sun visor body that is supported by a stay so as to be rotatable around an axis of the stay, and the sun visor body is switched between a storage position and a light blocking position. Things.
[0003]
As such a mounting structure for a vehicle sun visor, there is conventionally known a structure in which an urging means for urging the sun visor body located near the storage position toward the storage position is provided on the sun visor body or the vehicle body. .
[0004]
For example, a stay on the vehicle body is fitted into a fitting hole of the sun visor body, and the stay is inserted and held in a biasing means (leaf spring) in the sun visor body, so that the sun visor body is rotatably supported. In the meantime, while providing a flat contact surface at a predetermined position on the inner peripheral surface of the leaf spring, a flat moderation portion is recessed on the outer peripheral surface of the stay at a position corresponding to the contact surface, within the light blocking range, With the leaf spring in the expanded state, the contact surface is slid into contact with the outer peripheral surface of the stay where the moderation portion is not provided, so that the stay is pressed with a constant force by the leaf spring so that the sun visor body does not drop down unexpectedly. By holding the sun visor body, the rotation position of the sun visor main body is set to an arbitrary position, and direct light to the occupant in the driver seat is blocked. Then, the sun visor body is further rotated from the light shielding range to the vehicle interior plate side (storage position side). When the sun visor body reaches the vicinity of the storage position, the contact surface of the leaf spring and the moderation portion of the stay overlap and expand. The restoring force of the leaf spring acts to rotate the sun visor body toward the storage position, whereby the sun visor body is automatically stored in the storage position.
[0005]
By the way, when the sun visor body near the storage position is biased to rotate toward the storage position in this way, when the sun visor body suddenly moves toward the storage position, the sun visor body collides with the body interior plate. And an unpleasant tapping sound was generated.
[0006]
Therefore, conventionally, for example, an oil-type damper device for attenuating the storage force of the urging means is provided between a bearing case and a stay provided on a sun visor body (for example, see Patent Document 1). ).
[0007]
A support bar rotatably held at the upper part of the passenger compartment is provided on the sun visor body concentrically with the stay, and the support bar brakes the rotation of the sun visor body against the storage force of the urging means. A device provided with an oil-type damper device has been proposed (for example, see Patent Document 2).
[0008]
[Patent Document 1]
JP-A-11-157334
[Patent Document 2]
JP 2002-192947 A
[0009]
[Problems to be solved by the invention]
However, in Patent Document 1, since an oil-type damper device is provided, the structure is complicated, the number of parts is large, and the manufacturing cost is high. Further, in the case of Patent Document 2, the oil type damper device is provided, which is expensive, and the sun visor body is rotated without engaging the oil type damper device with the hook on the vehicle body side. However, there is a problem that the damper device does not operate.
[0010]
The present invention has been made in view of such a point, and an object of the present invention is to improve the structure of supporting a stay to have a simple structure, without generating an unpleasant beating sound, and a sun visor body. Is to be rotated to the storage position.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, in the invention of claim 1, the plate-shaped sun visor body is supported by the stay so as to be rotatable around the axis of the stay by the stay, and is switched between the storage position and the light shielding position. It is premised on the mounting structure of the vehicle sun visor.
[0012]
The sun visor main body is formed with an insertion hole for inserting the stay so that the sun visor main body can be rotated, and a bias for urging the sun visor main body located near the storage position toward the storage position. And an O-ring mounted on one of the inner peripheral surface of the insertion hole or the outer peripheral surface of the stay and pressed against the other of the inner peripheral surface of the insertion hole or the outer peripheral surface of the stay to brake the rotation of the sun visor body. .
[0013]
According to the above configuration, when the sun visor body is rotated from the light blocking position to the storage position, an urging force (hereinafter, referred to as a storage force) by the urging means acts near the storage position, and the sun visor main body is moved by the storage force. Attempt to rotate rapidly toward the storage position. However, an O-ring is mounted on one of the inner peripheral surface of the fitting hole of the sun visor body and the outer peripheral surface of the stay, and the O-ring is pressed against the other of the inner peripheral surface of the fitting hole or the outer peripheral surface of the stay. The rotation of the sun visor body can be braked by the frictional force associated with the pressure contact of the ring.
[0014]
At this time, since the urging means and the O-ring are provided around the same stay, the sun visor body can be smoothly rotated.
[0015]
Further, since the O-ring is attached to one of the inner peripheral surface and the stay outer peripheral surface of the insertion hole of the sun visor body, the number of parts is small and the cost is low.
[0016]
Therefore, with a simple structure, the sun visor body can be rotated to the storage position without generating an unpleasant beating sound.
[0017]
According to a second aspect of the present invention, in the mounting structure for a sun visor for a vehicle similar to the premise of the first aspect of the invention, the stay has a protruding portion integrally protruding from the sun visor body, and the protruding portion is rotated on the vehicle body. An insertion hole is formed so that the sun visor body is positioned near the storage position, and is biased toward the storage position, and is mounted on one of an inner peripheral surface of the insertion hole and an outer peripheral surface of the protrusion. And an O-ring for pressing against the other of the inner peripheral surface of the fitting hole or the outer peripheral surface of the protruding portion to brake the rotation of the sun visor body.
[0018]
According to the above configuration, the sun visor body is biased in the vicinity of the storage position when the sun visor body is rotatably supported by fitting the protrusion integrally projecting from the sun visor body into the fitting hole of the vehicle body. The frictional force of the O-ring acts to brake the rotation of the sun visor body even if the O-ring is suddenly rotated to the storage position by the storage force of the means. Thus, the sun visor main body can be rotated to the storage position with a simple structure without generating an unpleasant beating sound.
[0019]
According to the third aspect of the present invention, the plate-shaped sun visor body formed by superimposing the plate-shaped first and second plane bodies is supported by the stay so as to be rotatable around the axis of the stay by the stay, and the storage position and the light shielding are provided. It is assumed that the mounting structure of the vehicle sun visor is switched to the position.
[0020]
The sun visor main body is formed with an insertion hole for inserting the stay so that the sun visor main body can be rotated, and a bias for urging the sun visor main body located near the storage position toward the storage position. Means, an O-ring mounted on the outer peripheral surface of the stay and forming a braking portion protruding outward in the radial direction, and provided inside the sun visor body, and when the sun visor body is pivoted toward the storage position by the biasing means. A projection that abuts the braking portion of the O-ring to brake the rotation of the sun visor body.
[0021]
According to the above configuration, in the vicinity of the storage position when the sun visor body is rotated from the light blocking position to the storage position, the storage force of the urging means causes the sun visor body to rapidly rotate toward the storage position. However, at this time, the braking portion of the O-ring mounted on the outer peripheral surface of the stay and protruding outward in the radial direction comes into contact with the projection provided inside the sun visor main body, so that the sun visor main body tries to turn rapidly. Also, the rotation of the O-ring is braked by the frictional force of the O-ring.
[0022]
Therefore, with a simple structure, the sun visor body can be rotated to the storage position without generating an unpleasant beating sound.
[0023]
According to a fourth aspect of the present invention, in the vehicle sun visor mounting structure similar to the premise of the first aspect of the present invention, the stay has a projecting portion integrally projecting from the sun visor body, while the vehicle body rotates the projecting portion. An insertion hole is formed to allow the sun visor body positioned near the storage position to rotate toward the storage position, and a brake mounted on the outer peripheral surface of the protrusion to protrude radially outward. An O-ring forming a portion, and a projection provided on the vehicle body and abutting against a braking portion of the O-ring to brake the rotation of the sun visor body when the sun visor body rotates toward the storage position by the biasing means. And
[0024]
According to the above configuration, the sun visor body is biased in the vicinity of the storage position when the sun visor body is rotatably supported by fitting the protrusion integrally projecting from the sun visor body into the fitting hole of the vehicle body. Even if an attempt is made to suddenly rotate to the retracted position by the retracting force of the means, the frictional force of the O-ring acts to brake the rotation of the sun visor body in the same manner as in claim 3, so that an unpleasant tapping sound is not generated. Then, the sun visor body can be rotated to the storage position.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. The following embodiments are merely preferred examples in nature, and are not intended to limit the scope of the present invention, its applications, and applications.
[0026]
FIGS. 1 to 6 show a vehicle sun visor 1 according to a first embodiment of the present invention. The sun visor 1 is formed of a flat and long resin plate that extends in the vehicle width direction and has a predetermined light shielding area. A sun visor body 3 having a substantially rectangular shape is provided. The sun visor body 3 swings substantially horizontally around the vertical axis 5a of the stay 5 by means of an L-shaped cylindrical stay 5 on the vehicle body interior plate 7, and rotates back and forth around the horizontal axis 5b. The storage position (shown by the solid line in FIG. 6) is located along the vehicle interior panel 7 provided on the vehicle body panel P, and the light shielding position (shown by the imaginary line in FIG. 6) is located along the inner surface of the front window W of the vehicle. State).
[0027]
As shown in FIGS. 3 and 4, the sun visor body 3 has a substantially rectangular cutout at a position opposite to the stay 5 (left side of the vehicle body) at an edge of the vehicle interior in the light-shielded state on the vehicle body interior plate 7 side. 9. A support bar 11 extending in the length direction of the sun visor 1 is provided integrally with the notch 9 so as to bridge the notch 9 on the opening side. The support bar 11 is disposed so as to coincide with an extension of the horizontal shaft portion 5b of the stay 5, and the support bar 11 is provided on a bracket 33 disposed on the vehicle interior panel 7 (only shown in FIG. 6). , The support bar 11 is used as a rotation axis together with the horizontal shaft portion 5b of the stay 5 so that the sun visor 1 can rotate around these around. Note that the support bar 11 may be provided separately from the sun visor body 3 instead of being integrated with the sun visor body 3.
[0028]
The sun visor body 3 has a surface portion facing the cab side with a thin hinge 13 having a V-shaped cross section at the center extending in the vehicle width direction (the length direction of the sun visor body 3) in the retracted posture. The first flat body 15 and the second flat body 17 facing the vehicle body interior board 7 and constituting the back surface are halved in a symmetrical manner in the thickness direction and formed in a half-split shape. The first flat body 15 is composed of a flat portion 15a and a side wall portion 15b which is integrally provided on an outer peripheral edge of the flat portion 15a. Similarly, the second flat body 17 is formed of a flat portion 17a and the flat portion 17a. The first flat body 15 and the second flat body 17 are both formed in a dish shape with a small depth. The first flat body 15 and the second flat body 17 are bent around the thin hinge 13 and butted against the side wall portions 15b and 17b to be combined with each other to be combined into a flat plate shape. 18 (only shown in FIG. 2).
[0029]
The support bar 11 is formed integrally with the portion of the first flat body 15 that becomes the notch 9 of the sun visor 1, while the length of the sun visor body 3 at the portion that becomes the notch 9 of the second flat body 17 is formed. In the side walls 9a, 9a on both sides in the vertical direction, bearing recesses 19, 19, which are recessed in a semicircular shape corresponding to the outer diameter of the bearing bar 11, are formed at positions facing the bearing bar 11, In a state where the two flat bodies 15 and 17 are folded around the hinge 13 and both are overlapped, both ends of the support bar 11 are fitted into the support recesses 19 and 19.
[0030]
As shown in FIG. 3, a pair of first support shaft portions 21 and 22 are provided on the inner surface of the flat portion 15 a of the first flat body 15 on one end side in the vehicle width direction near the side wall portion 15 b opposite to the thin hinge 13. It is erected at intervals in the vehicle width direction. On the other hand, on one end side in the vehicle width direction near the side wall portion 17b on the opposite side of the thin hinge 13 of the second flat body 17, a pair of second support shaft portions 23 and 24 are substantially attached to the first support shaft portions 21 and 22. The first and second flat bodies 15 and 17 are overlapped with each other so as to correspond to each other. 23, 24, are arranged in a line in the vehicle width direction. One of the first support shaft portions 21 and one of the second support shaft portions 23 are connected to the other first support shaft portion 22 and the other second support shaft portion 22. The support shaft portions 24 overlap each other. The fitting holes 21a, 23a and the fitting holes 22a, 24a formed in the first and second support portions 21, 23 and the first and second support portions 22, 24 respectively fit the stay 5 rotatably. They communicate with each other as they can.
[0031]
A mounting seat 27 having a screw hole 27a (shown only in FIG. 2) is integrally formed in the inner surface of the flat portion 15a of the first flat body 15 near the first support shaft portions 21 and 22. A leaf spring 29 is attached to the seat 27 as urging means for urging the sun visor body 3 located near the storage position toward the storage position. Specifically, as shown in FIG. 2, the leaf spring 29 is obtained by bending an intermediate portion 29a into a substantially elliptical shape (loop shape) in a state where both ends 29b, 29b of a substantially rectangular spring steel are overlapped. At both ends 29b, 29b, concentric insertion holes 29c, 29c are formed in a state where they are overlapped. Screws 31 are inserted into the insertion holes 29c, 29c, and are inserted into the screw holes of the mounting seat 27. By screwing and fastening, the intermediate portion 29a of the leaf spring 29 is disposed between the pair of first support shaft portions 21 and 22 and is fixedly mounted on the mounting seat 27.
[0032]
The intermediate portion 29a of the leaf spring 29 has a projection 29d formed by bending a part of the back side (the second flat portion 17 side) so as to protrude inward. On the other hand, as shown in FIGS. 2 and 4, a moderation portion 5c is formed in the outer peripheral surface of the stay 5 at the distal end side of the horizontal shaft portion 5b. The fitting holes 21a and 23a of the first support shaft portion 21 and the second support shaft portion 23 of the sun visor body 3 and the fitting holes 22a and 24a of the first support shaft portion 22 and the second support shaft portion 24 of the sun visor body 3 overlap each other. When the horizontal shaft portion 5b is rotatably inserted into the lever, the moderation portion 5c of the stay 5 is arranged at the intermediate portion 29a of the leaf spring 29. When the sun visor body 3 is within the light blocking range, the projection 29d of the leaf spring 29 slides against the outer peripheral surface of the stay 5 where the moderation portion 5c is not provided in a pressed state, and the stay 5 compresses the leaf spring 29. The sun visor body 3 is not suddenly hung down by being pressed with a constant force by the force. In this way, the light blocking position of the sun visor body 3 is set and held at a position desired by the occupant. On the other hand, when the sun visor body 3 is rotated forward from the light blocking position to be positioned at the retracted position along the vehicle interior plate 7, the projection 29d of the leaf spring 29 and the moderation portion 5c of the stay 5 overlap. At the beginning, the sun visor body 3 is rotated and urged toward the vehicle interior plate 7 by the force of the expanded leaf spring 29 returning to the original shape.
[0033]
Further, as shown in FIGS. 1 and 4, an annular groove 5d is provided on the outer peripheral surface of the stay 5 at the base end side of the horizontal shaft portion 5b (vertical shaft portion 5a side). Are mounted with O-rings 25 for braking the rotation of the sun visor body 3. When the horizontal shaft portion 5b is rotatably inserted into the sun visor main body 3 which is superimposed on each other with the O-rings 25, 25 mounted in the annular grooves 5d of the horizontal shaft portion 5b of the stay 5, 25, 25 are arranged so as to be pressed into the fitting holes 21a, 23a. The sudden rotation of the sun visor body 3 is braked by the frictional force of the O-rings 25,25. The material of the O-ring 25 is elastic rubber in the first embodiment, but is not limited to this.
[0034]
Next, when the vehicle sun visor 1 according to the first embodiment is used, as shown in FIG. 5, the sun visor main body 3 is rotated rearward around the axis of the horizontal shaft portion 5b of the stay 5 so as to be frontward. It is positioned in the light blocking range on the window W side. Within this light-shielding range, the stay 5 is pressed with a constant force by the compression force of the leaf spring 29, and the rotation position of the sun visor body 3 is set. In this way, the sun visor is held at the appropriate light blocking position and direct light to the driver's occupant is blocked.
[0035]
On the other hand, when the vehicle sun visor 1 is not used, the sun visor main body 3 is rotated forward from the light blocking position to be positioned at the storage position along the vehicle interior plate 7. At this time, when the sun visor body 3 is further rotated from the light blocking position toward the vehicle body interior plate 7 to reach the storage operation range, the projection 29d of the leaf spring 29 and the moderation portion 5c of the stay 5 start to overlap. Then, the force by which the expanded leaf spring 29 attempts to return to the original shape generates a storage force that urges the sun visor body 3 to rotate toward the vehicle interior plate 7.
[0036]
However, since the O-rings 25, 25 mounted in the annular groove 5d of the stay 5 are pressed against the fitting holes 21a, 23a of the first support shaft portion 21 and the second support shaft portion 23, the sun visor main body is generated by the above-described storage force. Even if 3 rotates rapidly, the rotation is braked by the frictional force of the O-rings 25,25.
[0037]
When the projection 29d of the leaf spring 29 and the moderation 5c of the stay 5 completely overlap, the sun visor body 3 is held at the storage position.
[0038]
Therefore, according to the mounting structure of the vehicle sun visor 1 according to the first embodiment of the present invention, since the leaf spring 29 and the O-rings 25, 25 are provided around the same stay 5, the sun visor body 3 can be smoothly rotated. Can be moved. Further, since the annular groove 5d is provided on the outer peripheral surface of the stay 5, and the O-rings 25 are mounted in the annular groove 5d, the number of parts is small and the cost is low.
[0039]
Therefore, the sun visor body 3 can be turned to the storage position with a simple structure without generating an unpleasant beating sound.
[0040]
In the first embodiment, the moderating portion 5c having a V-shaped cross section is recessed on the outer peripheral surface of the horizontal shaft portion 5b of the stay 5. However, this moderating portion is formed by making a part of the outer peripheral surface substantially parallel to the axis of the stay 5. It may be made of a flat surface which is notched. In this case, the leaf spring 29 may be provided with a flat portion instead of the projection 29d.
[0041]
In the first embodiment, the annular groove 5d of the stay 5 is located at a position corresponding to the insertion holes 21a and 23a of the first and second support portions 21 and 23 on the outer side in the longitudinal direction of the sun visor body 3 in the horizontal shaft portion 5b. The O-rings 25, 25 are provided in the annular groove 5d. Instead, the first and second support portions 22, 24 on the further distal end side of the stay 5, that is, the inner side in the longitudinal direction of the sun visor body 3 are fitted. An annular groove may be provided on the outer peripheral surface of the stay corresponding to the holes 22a and 24a, and an O-ring may be attached to the annular groove. In this case, it is preferable that the outer diameter of the stay on the distal end side is made smaller than the outer diameter of the other outer peripheral surface, and an annular groove is provided in this small diameter portion. With this configuration, even when the O-ring is provided in the annular groove, the stay can be passed through the inside of the leaf spring, so that the stay can be fitted into the sun visor body.
[0042]
Further, in the first embodiment, the leaf spring 29 is arranged between the first support shaft portions 21 and 22 on the first flat body 15 side, but the leaf spring 29 is disposed between the second support shaft portions 23 and 24 on the second flat body 17 side. The leaf spring 29 may be arranged at the bottom.
[0043]
Further, in the first embodiment, the distance between the second support shafts 23 and 24 is wider than the distance between the first support shafts 21 and 22, and the second support shafts 23 and 24 use the first support shaft 21 and the first support shaft 21. 22 is sandwiched from the outside, but conversely, the space between the first support shaft portions 21 and 22 is made wider than the space between the second support shaft portions 23 and 24, and the first support shaft portions 21 and 22 The two support shafts 23 and 24 may be sandwiched from the outside. Further, the second support shafts 23 and 24 may be formed adjacent to the side surfaces of the first support shafts 21 and 22 on the same side. Good.
[0044]
In the first embodiment, the first flat body 15 and the second flat body 17 are integrally formed by the hinge 13, but these flat bodies may be formed separately.
[0045]
(Embodiment 2)
FIGS. 7 to 9 show a second embodiment of the present invention (in the following embodiments, the same parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted). In the second embodiment, the support structure of the sun visor body 45 is different from that of the first embodiment.
FIG. 9 shows the vehicle sun visor 1 provided on the vehicle interior panel 7 that covers the vehicle interior side surface of the vehicle body panel P. A sun visor accommodating portion 41 is formed in the vehicle body interior plate 7 by recessing a part thereof into a substantially rectangular shape. A sun visor mounting portion 43 that is higher than other portions is formed in a lower left portion of the vehicle body of the sun visor housing portion 41. As shown in detail in FIG. 7, the inside of the sun visor mounting portion 43 is hollow, and a fitting hole 43a having a horizontal center is opened in the right side wall in the vehicle width direction. The inside and outside of the sun visor mounting portion 43 communicate with each other.
[0046]
A bolt insertion hole 41a is formed in the vehicle interior panel 7 (sun visor housing portion 41) near the sun visor mounting portion 43, and a bolt insertion hole P1 is formed in the vehicle body panel P corresponding to the bolt insertion hole 41a on the same axis. A weld nut 51 is fixed to the rear side (the front side of the vehicle body) of the vehicle body panel P so as to correspond to the bolt insertion hole P1.
[0047]
The sun visor 1 is formed of a resin molded product in which a sun visor body 45 formed in a substantially rectangular plate shape elongated in the vehicle width direction and a stay 47 formed integrally with a lower portion of the sun visor body 45 are integrally formed. Has a protruding portion 47a that protrudes from the sun visor body 45 to the left side of the vehicle body in a substantially horizontal direction.
[0048]
The sun visor body 45 has a notch 45a formed by cutting a corner located at the lower left side of the vehicle body (lower left side in FIG. 9) in a storage position thereof into a substantially rectangular shape, and the sun visor body corresponding to the notch 45a. The stay 47 is integrally formed on the back side of the base 45 so that the protrusion 47a projects into the cutout 45a. As shown in detail in FIG. 8, the protrusion 47 a of the stay 47 is cut into a part where the sun visor body 45 is on the front side at the storage position and a part of the outer peripheral part is substantially parallel to the axis of the stay 47. A moderation portion 47b formed of a lacking flat surface is provided.
[0049]
A leaf spring 49 is provided inside the sun visor mounting portion 43 of the vehicle interior plate 7 as urging means for urging the sun visor body 45 located near the storage position toward the storage position. The leaf spring 49 is formed by bending a rectangular plate-like spring steel into a substantially b-shape so that both ends 49b, 49b overlap, and the screw 31 is inserted into the both ends 49b, 49b which are overlapped with each other. An insertion hole 49c is formed, and the intermediate portion 49a is formed in a substantially rectangular cylindrical shape that opens in the left-right direction. A pair of flat first contacts with which a moderation portion 47b of the stay 47 abuts on the inner periphery of the intermediate portion 49a. And the second contact surfaces 49d and 49e are provided so as to face each other. The screws 31 are inserted through the body interior plate 7, both ends 49 b, 49 b of the leaf spring 49 and the bolt insertion holes 41 a, P 1, 33 a of the vehicle body panel P, and are screwed to the nuts 51 on the back surface of the vehicle body panel P. The leaf spring 49 is fastened to the vehicle body panel P together with the vehicle interior panel 7 by the screw 31.
[0050]
Then, the projecting portion 47a of the stay 47 is fitted into the fitting hole 43a of the sun visor mounting portion 43, and the projecting portion 47a of the portion provided with the detent portion 47b is pushed into the intermediate portion 49a of the leaf spring 49. . As a result, the sun visor body 45 is supported so that the protruding portion 47a is slidably contacted with the inner periphery of the leaf spring 49 in a pressed state, and is rotatable around the axis of the stay 47 in a rotation range of about 180 °. The storage position (along the solid line in FIG. 8) along the panel P and the light-shielding position (along the virtual line in FIG. 8) along the inner surface of the front window W can be switched. .
[0051]
When the sun visor body 45 is switched to the retracted position, the moderation portion 47b of the stay 47 starts to abut on the first contact surface 49d of the intermediate portion 49a on the opposite side to the vehicle body panel P due to the rotation of the sun visor body 45, thereby expanding the sun visor. The sun visor body 45 is rotated and biased to the storage position by the force of the intermediate portion 49a returning to the original shape. Then, the moderation portion 47b of the stay 47 completely overlaps with the first contact surface 49d of the intermediate portion 49a, so that the sun visor body 45 is held at the storage position.
[0052]
On the other hand, when the sun visor body 45 is positioned at the light blocking position, the moderation portion 47b starts to contact the second contact surface 49e of the intermediate portion 49a on the vehicle body panel P side by the rotation of the sun visor body 45, and the intermediate portion 49a The sun visor body 45 is rotationally urged to the light blocking position by the storage force of. The moderation portion 47b of the stay 47 completely overlaps the second contact surface 49e of the intermediate portion 49a, so that the stay 47 is held at the light shielding position.
[0053]
As shown in FIG. 7, an annular groove 47c having a substantially rectangular cross section is formed on the outer peripheral surface at the base end side (sun visor body 45 side) of the projecting portion 47a of the stay 47 over the entire circumference. O-rings 25, 25 are mounted on 47c. Since the O-rings 25 are pressed against the inner peripheral surface of the fitting hole 43a, the rapid rotation of the sun visor body 45 is braked by the frictional force of the O-rings 25.
[0054]
Next, the operation of the vehicle sun visor 1 according to the second embodiment will be described. The sun visor body 45 is rotated backward about the axis of the protrusion 47 a of the stay 47 to block light along the inner surface of the front window W. Position. In the vicinity of the light shielding position, the moderation portion 47b of the stay 47 starts to contact the second contact surface 49e on the vehicle body panel P side of the intermediate portion 49a, and the expanded intermediate portion 49a attempts to return to the original shape, The sun visor body 45 is urged to rotate to the storage position. At this time, even if the sun visor body 3 tries to turn sharply due to the frictional force of the O-rings 25, 25 attached to the annular groove 47c of the stay 47, the turning is braked. Then, the sun visor body 45 is rotated while being braked, and the detent portion 47b of the stay 47 is completely overlapped with the second contact surface 49e of the intermediate portion 49a, so that the sun visor body 45 is held at the light blocking position. In this way, direct light to the driver's seat occupant is blocked.
[0055]
On the other hand, when the vehicle sun visor 1 is not used, the sun visor main body 45 is rotated forward from the light blocking position to be positioned at the storage position along the vehicle body panel P. At this time, at the storage force generating position near the storage position, the detent portion 47b of the stay 47 starts to contact the first contact surface 49d of the intermediate portion 49a, and the storage force of the leaf spring 49 causes the sun visor body 45 to move toward the storage position. The rotation is urged. Also at this time, even if the sun visor body 3 tries to turn sharply due to the frictional force of the O-rings 25, 25 mounted in the annular groove 47c of the stay 47, the rotation is braked. Then, the sun visor body 45 is rotated while being braked, and the detent portion 47b of the stay 47 is completely overlapped with the first contact surface 49d of the intermediate portion 49a, so that the sun visor body 45 is held at the storage position.
[0056]
Therefore, according to the mounting structure of the vehicle sun visor 1 according to the second embodiment, the stay 47 has the simple structure in which the annular groove 47c is provided on the outer peripheral surface and the O-rings 25, 25 are mounted in the annular groove 47c, which is uncomfortable. The same operation and effect as in the first embodiment, in which the sun visor body 45 is rotated to the storage position without generating a beating sound, can be obtained.
[0057]
In the second embodiment, the stay 47 is integrally formed on the back side of the sun visor main body 45. However, the stay may be integrally formed so as to project from the left side surface of the sun visor main body.
[0058]
In the second embodiment, the annular groove 47c of the protruding portion 47a is provided at a position corresponding to the fitting hole 43a of the sun visor mounting portion 43, and the O-rings 25 are provided in the annular groove 47c. Also, a bearing portion projecting toward the vehicle body panel P may be provided on the inner surface of the sun visor mounting portion 43 on the tip side of the projecting portion, and a fitting hole may be provided in this bearing portion.
Then, an annular groove is provided on the outer peripheral surface of the projecting portion to be fitted into the fitting hole, and an O-ring is attached to the annular groove. Also in this case, it is preferable that the outer diameter of the distal end side of the protruding portion is made smaller than the outer diameter of the other outer peripheral surface, and an annular groove is provided in this small diameter portion.
[0059]
Further, in the second embodiment, the projecting portion 47a of the stay 47 is projected from the left side of the sun visor body 45 so that the sun visor body 45 is held only by the left sun visor mounting portion 43. And the sun visor mounting portions of the vehicle body interior plate may be provided at two right and left locations, and the sun visor body may be held by the left and right sun visor mounting portions. In this case, the O-ring and the leaf spring may be provided on the right and left sun visor mounting portions, or may be provided on only one of the sun visor mounting portions. However, in order to make the rotation of the sun visor body smooth, it is desirable that the O-ring and the leaf spring are provided as a set at the same place.
[0060]
In the first and second embodiments, the annular groove is provided on the outer peripheral surface side of the stay, and the O-rings 25, 25 are mounted on the annular groove. However, the inner peripheral surface of the fitting hole on the sun visor body side or the vehicle body interior plate side. May be provided with an annular groove, and an O-ring may be attached to the annular groove.
[0061]
Furthermore, in the first and second embodiments, the annular groove is provided on the outer peripheral surface of the stay, and the O-rings 25, 25 are mounted on the annular groove. However, the O-ring is not provided on the outer peripheral surface of the stay or the protrusion. An O-ring may be provided between the rings by protruding the stopper.
[0062]
In the first and second embodiments, two O-rings 25 are provided, but the number of O-rings is not limited to one, and one or three or more O-rings may be provided.
[0063]
(Embodiment 3)
10 to 12 show a third embodiment of the present invention, which is different from the first embodiment in that the braking structure by the O-ring 25 is different. That is, in this embodiment, the stay 5 is rotatably fitted in the fitting holes 21a, 22a,... Formed in the sun visor body 3 in the same manner as in the first embodiment. Of the holes 21a, 22a,..., For example, on the inner surface of the insertion hole 21a of the first support shaft 21, a projection 21b having a substantially rectangular cross section projecting radially inward of the insertion hole 21a is provided at a predetermined position. Is provided.
[0064]
On the other hand, on the outer peripheral surface of the horizontal shaft portion 5b of the stay 5 corresponding to the fitting hole 21a, a substantially annular O-ring groove 61 that is continuous and partially interrupted in the circumferential direction is provided. The O-ring groove 61 has a substantially rectangular cross section, and a discontinuous portion forms a non-concave groove portion 63.
[0065]
The O-ring 25 is mounted in the O-ring groove 61 of the stay 5. In this state, a portion of the O-ring 25 that covers the non-concave groove portion 63 protrudes outward in the radial direction of the stay to form a braking portion 65 that brakes the sun visor body 3. The rotation of the sun visor main body 3 is controlled by sliding the braking portion 65 with the protrusion 21b of the fitting hole 21a. Specifically, the braking portion 65 includes a first braking portion 65a with which the protrusion 21b of the insertion hole 21a first contacts when the sun visor body 3 is rotated toward the storage position, and an outer peripheral direction of the non-concave groove portion 63. A second braking portion 65b immediately above and a third braking portion 65c that holds the sun visor main body 3 by the protrusion 21b abutting at the storage position of the sun visor main body 3.
[0066]
Next, the operation of the vehicle sun visor 1 according to the third embodiment of the present invention will be described. FIG. 11 shows the positional relationship between the non-recessed groove 63 of the stay 5 at the light shielding position along the front window W and the protrusion 21 b of the insertion hole 21 a of the first support shaft 21. When the sun visor body 3 at the light shielding position is rotated in the direction of arrow A toward the storage position, the projection 29d of the leaf spring 29 starts to overlap with the moderation portion 5c of the stay 5, and Due to the storage force, a storage force is generated in the sun visor main body 3 to rapidly rotate the sun visor main body 3 toward the storage position. At this time, the first braking portion 65a of the braking portion 65 of the O-ring 25 comes into contact with the projection 21b of the fitting hole 21a, and a frictional force starts to act between the O-ring 25 and the projection 21b.
[0067]
Further, the sun visor body 3 is rotated toward the storage position by the storage force of the leaf spring 29, and the storage force is reduced by the protrusion 21 b of the insertion hole 21 a being the second brake part 65 b of the brake part 65 of the O-ring 25. (The second braking portion 65b is compressed in the diametric direction), and the sun visor body 3 is slowly rotated. For this reason, the sun visor main body 3 does not suddenly rotate and hit the vehicle interior panel 7 as in the related art.
[0068]
Then, when the sun visor body 3 reaches the storage position, the third braking portion 65c of the braking portion 65, which has passed over the protrusion 21b of the insertion hole 21a, comes into contact with the side surface of the protrusion 21b. Is held.
[0069]
Therefore, according to the mounting structure of the vehicle sun visor 1 according to the third embodiment, when the sun visor main body 3 is rotated from the light blocking position to the storage position, the sun visor main body 3 is moved by the storage force of the leaf spring 29 near the storage position. When suddenly rotating toward the storage position, the braking portion 65 of the O-ring 25 attached to the O-ring groove 61 of the stay 5 comes into contact with the projection 21b of the fitting hole 21a. Is suddenly rotated by the frictional force of the O-ring 25.
[0070]
Therefore, the sun visor body 3 can be turned to the storage position with a simple structure without generating an unpleasant beating sound.
[0071]
In the third embodiment, the O-ring 25 is provided on the outer peripheral surface of the horizontal shaft portion 5b of the stay 5 at a position corresponding to the insertion hole 21a of the first support shaft portion 21 on the outer side in the longitudinal direction of the sun visor body 3. Not limited to this position, it may be provided at a position corresponding to the other insertion holes 21b, 21c,. For example, an O-ring 25 may be provided on the outer peripheral surface of the stay 5 corresponding to the fitting hole 23a of the second support shaft portion 23 on the outer side in the longitudinal direction of the sun visor main body 3, and in this case, the fitting hole of the first support shaft portion 21 is provided. The inner diameter of 21a may be made slightly larger than the outer diameter of stay 5 to have a bearing function.
[0072]
In the third embodiment, the protrusion 21 b is provided in the fitting hole 21 a of the first support shaft 21. However, the protrusion 21 b may be provided at any position on the inner surface of the flat portion 17 a of the second flat body 17. In short, when the leaf spring starts to bias the sun visor body located near the storage position toward the storage position, the protrusion may be brought into contact with the braking portion of the O-ring.
[0073]
In the third embodiment, only one O-ring 25 is provided, but two or more O-rings may be provided. In this case, the widths of the O-ring groove of the stay and the projection of the fitting hole may be increased.
[0074]
Further, in the third embodiment, the support structure of the sun visor main body is described as being the same as that of the first embodiment. However, it goes without saying that the support structure of the sun visor main body of the second embodiment can be adopted. Also in this case, when the storage force of the leaf spring with respect to the sun visor body is generated, the braking portion of the O-ring may start to abut on the protrusion of the fitting hole.
[0075]
【The invention's effect】
As described above, in the mounting structure of the vehicle sun visor according to the first aspect of the present invention, the plate-shaped sun visor body is formed with the fitting hole for fitting the stay so that the sun visor body can rotate, and is positioned near the storage position. Biasing means for rotating and biasing the sun visor body toward the storage position, and attached to one of the inner peripheral surface of the insertion hole or the outer peripheral surface of the stay, and the other of the inner peripheral surface of the insertion hole or the outer peripheral surface of the stay. An O-ring for pressing the sun visor body to stop the rotation by pressing is provided. In the mounting structure for a sun visor for a vehicle according to the second aspect of the present invention, the stay is provided with a protrusion integrally projecting from the sun visor main body, and the fitting hole is formed in the vehicle body so as to be rotatably fitted with the protrusion. A biasing means for rotating and biasing the sun visor body located near the position toward the storage position; and an inner peripheral surface of the insertion hole or the protrusion attached to one of an inner peripheral surface of the insertion hole or an outer peripheral surface of the protrusion. And an O-ring for pressing against the other one of the outer peripheral surfaces of the sun visor to brake the rotation of the sun visor body. In the mounting structure for a sun visor for a vehicle according to the third aspect of the present invention, a fitting hole for fitting a stay such that the sun visor body can rotate is inserted into a sun visor body formed by superimposing the plate-shaped first and second planar bodies. A biasing means formed and biased to rotate the sun visor body located near the storage position toward the storage position, and an O-ring mounted on the outer peripheral surface of the stay and forming a braking portion protruding radially outward, A projection is provided inside the sun visor main body, and the projection is provided for abutting against the braking portion of the O-ring to brake the rotation of the sun visor main body when the sun visor main body is rotated toward the storage position by the urging means. In the mounting structure for a sun visor for a vehicle according to the fourth aspect of the present invention, the stay is provided with a protruding portion integrally protruding from the sun visor body, and a fitting hole for rotatably fitting the protruding portion into the vehicle body is formed, and the vicinity of the storage position is formed. A biasing means for rotationally biasing the sun visor body positioned toward the storage position, an O-ring mounted on the outer peripheral surface of the protruding portion, forming a braking portion protruding radially outward, and provided on the vehicle body, When the sun visor body is rotated toward the storage position by the urging means, a projection is provided to abut the braking portion of the O-ring to brake the rotation of the sun visor body. According to these inventions, the sun visor body can be rotated to the storage position with a simple structure and without generating an unpleasant beating sound.
[Brief description of the drawings]
FIG. 1 is an enlarged sectional view showing a portion around an insertion hole when a sun visor body of a sun visor according to a first embodiment of the present invention is in a light blocking position.
FIG. 2 is an enlarged sectional view showing a leaf spring portion when the sun visor body is at a light blocking position.
FIG. 3 is a perspective view showing the sun visor body in an unfolded state.
FIG. 4 is a perspective view showing a stay and a sun visor main body before the stay is attached.
FIG. 5 is a diagram illustrating a use position of a sun visor;
FIG. 6 is a perspective view showing a stored state of the sun visor according to the first embodiment of the present invention.
FIG. 7 is a view corresponding to FIG. 1 showing a mounting structure of a sun visor according to a second embodiment.
8 is a sectional view taken along line VIII-VIII in FIG. 9;
FIG. 9 is a front view showing a stored state of a sun visor according to a second embodiment of the present invention.
FIG. 10 is a view corresponding to FIG. 1 showing a mounting structure of a sun visor according to a third embodiment of the present invention.
11 is a sectional view taken along line XI-XI in FIG.
FIG. 12 is a perspective view showing a groove for an O-ring of a stay.
[Explanation of symbols]
1 Sun visor for vehicles
3,45 Sun visor body
5,47 stay
7 Body interior board (body)
21a, 23a, 43a insertion hole
21b Projection
25 O-ring
29,49 Leaf spring (biasing means)
47a Projection
65 Braking unit

Claims

A mounting structure for a vehicle sun visor in which a plate-shaped sun visor body is supported by a stay with respect to a vehicle body so as to be rotatable around an axis of the stay so as to be switched between a storage position and a light blocking position,
An insertion hole for inserting the stay is formed in the sun visor body so that the sun visor body can rotate,
Urging means for urging the sun visor body located near the storage position toward the storage position,
An O-ring mounted on one of the inner peripheral surface of the fitting hole or the outer peripheral surface of the stay and being pressed against the other of the inner peripheral surface of the fitting hole or the outer peripheral surface of the stay to brake the rotation of the sun visor body. A mounting structure for a vehicle sun visor.

A mounting structure for a vehicle sun visor in which a plate-shaped sun visor body is supported by a stay with respect to a vehicle body so as to be rotatable around an axis of the stay so as to be switched between a storage position and a light blocking position,
The stay has a protrusion integrally projecting from the sun visor body, while a fitting hole is formed in the vehicle body to rotatably fit the protrusion,
Urging means for urging the sun visor body located near the storage position toward the storage position,
An O-ring mounted on one of the inner peripheral surface of the fitting hole or the outer peripheral surface of the protruding portion and pressing against the other of the inner peripheral surface of the fitting hole or the outer peripheral surface of the protruding portion to brake the rotation of the sun visor body. A mounting structure for a vehicle sun visor.

A plate-shaped sun visor body formed by superimposing the plate-shaped first and second plane bodies is supported by a stay so as to be rotatable around the axis of the stay by a stay, and is switched between a storage position and a light shielding position. In the mounting structure of the vehicle sun visor,
An insertion hole for inserting the stay is formed in the sun visor body so that the sun visor body can rotate,
Urging means for urging the sun visor body located near the storage position toward the storage position,
An O-ring mounted on the outer peripheral surface of the stay and forming a braking portion protruding radially outward;
A projection provided inside the sun visor body and abutting against the braking portion of the O-ring to brake the rotation of the sun visor body when the sun visor body is rotated toward the storage position by the urging means. A mounting structure for a vehicle sun visor.

A mounting structure for a vehicle sun visor in which a plate-shaped sun visor body is supported by a stay with respect to a vehicle body so as to be rotatable around an axis of the stay so as to be switched between a storage position and a light blocking position,
The stay has a protrusion integrally projecting from the sun visor body, while a fitting hole is formed in the vehicle body to rotatably fit the protrusion,
Urging means for urging the sun visor body located near the storage position toward the storage position,
An O-ring mounted on the outer peripheral surface of the protruding portion and forming a braking portion protruding radially outward;
A projection provided on the vehicle body and abutting against a braking portion of the O-ring to brake the rotation of the sun visor body when the sun visor body is rotated toward the storage position by the urging means. Characteristic vehicle sun visor mounting structure.