JP2004189016A

JP2004189016A - Air-conditioning duct structure for vehicle

Info

Publication number: JP2004189016A
Application number: JP2002356564A
Authority: JP
Inventors: Kazufumi Yomo; 四方　　一史; Koichi Ito; 伊藤　　公一; Mitsugi Yamanaka; 貢山中; Masafumi Kawashima; 誠文川島; Hiroshi Suzuki; 浩鈴木
Original assignee: Inoue MTP KK; Inoac Corp; Denso Corp
Current assignee: Inoac Corp; Denso Corp
Priority date: 2002-12-09
Filing date: 2002-12-09
Publication date: 2004-07-08

Abstract

<P>PROBLEM TO BE SOLVED: To enable vehicle electric wiring to be held in an air-conditioning duct structure for a vehicle without increasing the number of components. <P>SOLUTION: This air-conditioning duct structure comprises a beam member 14 formed into a cylindrical shape; duct splits 14c, 14d arranged inside the beam member 14 and formed into a substantial cylindrical shape; and upper and lower heat insulating holding members 161a, 161b passing from the duct splits 14c, 14d and in openings 171d, 171c extending outside and formed to hold vehicle electric wiring 20, respectively. Then, the duct splits 14c and the upper heat insulating holding member 161a are integrally molded. The duct splits 14d and the upper heat insulating holding member 161b are integrally molded. Accordingly, it is possible to decrease the number of components as compared with the case that each of four components of the duct splits 14c, 14d and upper and lower heat insulating holding members 161a, 161b is applied as a separate member, respectively. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、車両用空調ダクト構造に関する。
【０００２】
【従来の技術】
車両用空調装置の室内空調ユニットは、通常車室内前方（エンジンルームと車室内を区画する区画壁近傍）の計器盤内側において車両幅方向の中央部に配置され、この室内空調ユニットで温度調整された空調風を、計器盤の車両幅方向の中央部に配置されたセンタフェイス吹出口から車室内中央部の乗員顔部側へ吹き出すとともに、計器盤の車両幅方向の左右両端部に配置されたサイドフェイス吹出口から空調風を車室内左右両端部の乗員顔部側へ吹き出すようになっている。
【０００３】
従って、計器盤内の車両幅方向の中央部に位置する室内空調ユニットから車室内左右両端部に位置するサイドフェイス吹出口へ空調風を導く空調ダクト（サイドフェイスダクト）が必要となる。
また、計器盤内側には、各種のワイヤーハーネス（電気配線）が、配設されている（例えば、特許文献１参照）。
【０００４】
【特許文献１】
特開平７−５２６８３号公報
【０００５】
【発明が解決しようとする課題】
ところで、例えば、上述したワイヤーハーネスを空調ダクトに沿わせるように固定する場合には、空調ダクトにワイヤーハーネスを固定するための固定部材といった余分な部材を必要とし、製造コストの上昇を招く可能性がある。
【０００６】
本発明は、上記点に鑑み、部品点数を増やすことなく、車両電気配線等の他の部品を保持できるようにした車両用空調ダクト構造を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は、上記目的を達成するために、請求項１に記載の発明では、筒状に形成されたダクトケース（１４）と、ダクトケースの内側に配設されて略筒状に形成されている断熱部材（１４ｃ、１４ｄ）と、断熱部材からダクトケースの開口部（１７１ｄ、１７１ｃ）内を貫通してダクトケースの外側に延出して他の部材（２０）を保持するように形成される断熱保持部材（１６１ａ、１６１ｂ）と、を備えることを特徴とする。
【０００８】
このように、断熱保持部材を、断熱部材からダクトケースの開口部内を貫通してダクトケースの外側に延出するように形成するので、断熱保持部材および断熱部材の双方で１つの部品とすることができ、部品点数増やすことなく、他の部材を断熱保持部材により保持できる。
【０００９】
ここで、請求項２に記載の発明のように、ケース断熱保持部材（１７１）が、ダクトケースから延出して断熱保持部材を保持するようにすれば、ダクトケースによりケース断熱保持部材を介して他の部材を保持することになる。このため、他の部材をより確実に保持することができる。
【００１０】
ここで、断熱部材および断熱保持部材は、それぞれ別々に成形してから互いを接続することも可能であるものの、請求項３に記載の発明のように、断熱部材および断熱保持部材としては、一体成形されているものを用いる用にすることが好適である。この場合、それぞれ別々に成形してから互いを接続する場合にに比べて、部品点数を減らすことができ、製造コストを減らすことができる。
【００１１】
具体的には、請求項４に記載の発明のように、断熱部材および断熱保持部材としては、発泡材料から成るものを用いることが他の部材を保護する上で好適である。
【００１２】
また、請求項５に記載の発明のように、他の部材としては、車両電気配線を用いることが好ましい。
【００１３】
さらに、請求項６に記載の発明のように、ダクトケースは、略半筒状に形成される少なくとも２つのダクトケース分割体（１４ａ、１４ｂ）を組み合わせて２つのケース分割体の端部（１５１ａ、１５１ｂ）間が接合されているものを用いることが好ましい。
【００１４】
具体的には、請求項７に記載の発明のように、断熱部材および断熱保持部材は、ダクトケースおよびケース断熱保持部材に対して流動状態の断熱材料を吹き付けて固着させて成型されたものを用いるようにしてもよい。
【００１５】
請求項８に記載の発明では、断熱部材および断熱保持部材は、ダクトケースおよびケース断熱保持部材に対して成形型（３０１、３０２、３０４、３０５）を組み合わせて形成された空所（３００、３１０）内に流動状態の断熱材料を注入して固着されて成型されたものを用いてもよい。
【００１６】
請求項９に記載の発明のように、ダクトケースおよびケース断熱保持部材としては、一体に成形されているものを用いるようにしてもよい。
【００１７】
請求項１０に記載の発明のように、ダクトケースおよびケース断熱保持部材としては、金属製のものを用いるようにしてもよい。
【００１８】
請求項１１に記載の発明のように、ダクトケースとしては、車両の梁部材を用いるようにしてもよい。
【００１９】
因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。
【００２０】
【発明の実施の形態】
（第１実施形態）
図１、図２に本発明に係る車両空調用ダクト構造の第１実施形態を示す。図１の車両用空調ダクト構造は、図２の計器盤部の内側に搭載される。なお、以下説明する各図の矢印は車両搭載状態における車両左右、上下、前後の方向を示す。
【００２１】
図２の計器盤１０は、車室内前部に位置して計器類やオーディオ機器等を装着している。計器盤１０のうち、車両幅（左右）方向の略中央部には、乗員の顔部に向かって空調空気が吹き出されるセンタフェイス吹出口１１ａ、１１ｂが配置され、また、計器盤１０のうち、車両幅方向の両端部には乗員の顔部または車両側面窓ガラスに向かって空調空気が吹き出されるサイドフェイス吹出口１２ａ、１２ｂが配置されている。
【００２２】
そして、計器盤１０の内側には、車両用空調装置の空調ユニット１３が配置されている。空調ユニット１３は、車両幅方向の略中央部に位置して車室内に吹き出す空気の温度や湿度を調節するものである。そのため、空調ユニット１３の内部には冷房用熱交換器（蒸発器）、暖房用熱交換器（温水式ヒータコア）等の機器が内蔵されている。また、空調ユニット１３は、内気又は外気を切替導入して送風する送風ユニットを一体に構成する完全センター置きタイプとして構成できるが、送風ユニットを空調ユニット１３に対して助手席側にオフセット配置するセミセンター置きタイプとして構成してもよい。
【００２３】
一方、計器盤１０の内側において空調ユニット１３の上方には車両幅方向に延びる梁部材（レインフォースバー）１４が備えられている。この梁部材１４は図示しないステアリング装置を支持することを主目的とする構造部材であって、その車両幅方向の両端部にはアルミニュウム合金等の金属製のサイドブラケット（図示しない）が一体に組み付けられ、このサイドブラケットにより梁部材１４の両端部が車両ボディに固定されるようになっている。
【００２４】
梁部材１４は中空状のものであって、その長手方向に分割された上下２つの梁部材分割体１４ａ、１４ｂを接合して筒形状形状を形成する。具体的には、上下の梁部材分割体１４ａ、１４ｂは、図３に示すように、それぞれ断面凹部状に形成された半筒部１５０ａ、１５０ｂと、半筒部１５０ａ、１５０ｂから車両左右前後方向に突出するツバ部１５１ａ、１５１ｂを有する。そして、上下の梁部材分割体１４ａ、１４ｂとしては、互いのツバ部１５１ａ、１５１ｂ同士が接合して構成されている。梁部材分割体１４ａ、１４ｂとしては、アルミニュウム合金等のシート状の金属を半筒形状に曲げ加工されるものが用いられている。
【００２５】
また、梁部材１４（梁部材本体）の内側の表面上には、筒状のダクト部１４１が配設されている。このダクト部材１４１は、空調用の空気を導く通路の役割を果たすものである。このことにより、梁部材１４に車両空調用ダクト構造を内包させることになる。
【００２６】
具体的には、ダクト部材１４１としては、半筒状のダクト分割体１４ｃ、１４ｄが接合されて構成されたものである。ダクト分割体１４ｃは、梁部材分割体１４ａの半筒部１５０ａの内側壁に配設され、ダクト分割体１４ｄは、梁部材分割体１４ｂの半筒部１５０ｂの内側壁に配設されている。
【００２７】
また、ダクト分割体１４ｃ、１４ｄの素材は、空気層を持つ断熱吸音材からなる。具体的には、ダクト分割体１４ｃ、１４ｄの素材としては、ポリピレン、ポリエチレン、或いは、発泡ウレタン、発泡ポリプロピレン、発泡ポリエチレンのような樹脂発泡材が好適である。これらの樹脂発泡材では材料自身が発泡することにより空気層を持ち、断熱機能を発揮する。更に、発泡度合いの調整や材質により吸音効果も具備する。ここで、硬質ウレタン樹脂のように主に断熱機能のみを発揮する材料をダクト分割体１４ｃ、１４ｄの素材として使用してもよい。なお、ダクト分割体１４ｃ、１４ｄとしては、後述するごとく、梁部材分割体１４ａ、１４ｂを用いてインサート成形される。
【００２８】
また、梁部材１４には、図４に示すように、その外側にてその長手方向に並行に車両電気配線２０が配設されており、車両電気配線２０は、後述するごとく、断熱保持部材１６１ａ、１６１ｂ、ケース断熱保持部材１７１により保持・保護される。なお、上下の断熱保持部材１６１ａ、１６１ｂ、ケース断熱保持部材１７１を用いて車両電気配線２０を保持する保持構造については、後述する。
【００２９】
一方、空調ユニット１３の上面部には、図１に示すように、車両幅（左右）方向の中央部に２個のセンタフェイス開口部１７ａ、１７ｂが開口し、この２個のセンタフェイス開口部１７ａ、１７ｂの左右両側にサイドフェイス開口部１８ａ、１８ｂが開口している。更に、これらフェイス開口部１７ａ、１７ｂ、１８ａ、１８ｂの車両前方側にはデフロスタ開口部１９が開口している。
【００３０】
そして、図３に示すように、下側の梁部材分割体１４ｂの底面部１５において車両幅（左右）方向の中央部には、４つの開口部２０ａ、２０ｂ、２１ａ、２１ｂが開口している。そのうち、中央部の２つの開口部２０ａ、２０ｂは、上記センタフェイス開口部１７ａ、１７ｂと連通するセンタフェイス用開口部であり、また、左右両側の２つの開口部２１ａ、２１ｂは上記サイドフェイス開口部１８ａ、１８ｂと連通するサイドフェイス用開口部である。なお、デフロスタ開口部１９には図示しないデフロスタダクトが接続される。
【００３１】
さらに、上側の梁部材分割体１４ａの上側壁面には車両幅（左右）方向の中央部に２つのセンタフェイス出口開口部２２ａ、２２ｂが開口し、上側の梁部材分割体１４ａの車両後側壁面において車両幅（左右）方向の両端部近傍にはサイドフェイス出口開口部２３ａ、２３ｂが開口している。
【００３２】
ここで、梁部材１４の内部において車両幅（左右）方向の中央部には、図３に示すように、通風路仕切り部材３０が配置される。この通風路仕切り部材３０は、剛性のある樹脂材料にて２つのセンタフェイス通路を有する概略箱状の形状に成形され、上下の梁部材分割体１４ａ、１４ｂの間に挟み込み固定される。そして、通風路仕切り部材３０は、２つのセンタフェイス通路の下端部が下側梁部材分割体のセンタフェイス用開口部２０ａ、２０ｂと連通し、また、２つのセンタフェイス通路の上端部が上側梁部材分割体１４ａのセンタフェイス出口開口部２２ａ、２２ｂと連通する位置関係で挟み込み固定される。
【００３３】
上側の梁部材分割体１４ａの上側の壁面に開口する２つのセンタフェイス出口開口部２２ａ、２２ｂは、図２のセンタフェイス吹出口１１ａ、１１ｂに接続され、また、上側の梁部材分割体１４ａのうち、車両幅方向の両端部近傍に開口する２つのサイドフェイス出口開口部２３ａ、２３ｂは、図２のサイドフェイス吹出口１２ａ、１２ｂに接続される。
【００３４】
なお、図１には図示していないが、梁部材１４のうち、運転席側の部位（図１の右寄り部位）にステアリング装置支持用のステーがねじ止め等により組み付けられて、ステアリング装置を支持できるようにしている。また、梁部材１４のうち、略中央部には、図示しないセンターブレース（支柱部材）の上端部がねじ止め等により組み付けられる。このセンターブレースの下端部は車両ボディの床部にボルト等の締結手段により固定されるようにしている。
【００３５】
次に、車両電気配線２０の保持構造については、図１、図５乃至図１２を用いて説明する。
【００３６】
図５は、下側の梁部材分割体１４ｂの斜視図（但し、右側端部の構造は省略してある）、図６は、図５中のＡ−Ａ断面図、図７は、図５中のＢ−Ｂ断面図である。図６、図７では、ケース断熱保持部材１７１だけを示す。また、図８は、上側の梁部材分割体１４ａの斜視図（但し、右側端部の構造は省略してある）、図９は、梁部材分割体１４ａののＣ−Ｃ断面図である。
【００３７】
図１に示すように、３つのケース断熱保持部材１７１は、下側の梁部材分割体１４ｂの長手方向に配列されたもので、下側の梁部材分割体１４ｂからそれぞれ車両後方に延出して断熱保持部材１６１ｂを下側から保持するように形成されている。
【００３８】
具体的には、図５に示すように、ケース断熱保持部材１７１は、下側の梁部材分割体１４ｂから車両後方に板状に延出するケース延出部１７１ａと、この延出部の先端側にて半筒状に形成されて断熱保持部材１６１ｂを下側から保持するケース半筒部１７１ｂとから成る。
【００３９】
ここで、延出部１７１ａの左右方向の中央部には、開口部１７１ｃが形成されている。また、上側の梁部材分割体１４ａには、図８に示すように、開口部１７１ｄが形成されており、上下の梁部材分割体１４ａ、１４ｂが組み合わさったときには、開口部１７１ｄが、開口部１７１ｃに対向する。
【００４０】
また、断熱保持部材１６１ｂは、図１０に示すように、ダクト分割体１４ｄから開口部１７１ｃを通して延出する延出部１８０ａと、図１１に示すように、延出部１８０ａの先端側にてケース半筒部１７１ｂに沿うように筒状に形成された半筒部１８０ｂとから成る。半筒部１８０ｂは、車両電気配線２０をその下側から保持・保護する。
【００４１】
なお、図１０は、半筒部１８０ｂの長手方向において断熱保持部材１６１ｂの中央部を示す断面図である（図５中Ｂ−Ｂ断面に相当する断面図である）。図１１は、半筒部１８０ｂの長手方向において断熱保持部材１６１ｂの左側端部を示す断面図である（図５中Ａ−Ａ断面に相当する断面図である）。
【００４２】
さらに、断熱保持部材１６１ａは、図１２に示すように、ダクト分割体１４ｃから開口部１７１ｄを通して車両後側に延出する延出部１８１ａと、延出部１８１ａの先端側にて筒状に形成された半筒部１８１ｂとから成り、半筒部１８１ｂは、半筒部１８０ｂと組み合わさって筒状に形成されるのもので、車両電気配線２０をその上側から保持・保護する。
【００４３】
次に、第１実施形態による車両空調用ダクト構造の形成方法を具体的に説明する。
【００４４】
先ず、上下の梁部材分割体１４ａ、１４ｂの素材としても金属製のシート状素材および、ダクト分割体、１４ｃ、１４ｄを樹脂形成するための上型、下型を用意する。
【００４５】
次に、シート状素材から所定形状に外形を切断し、この所定形状のシート部材をプレス加工して略半筒状に形成し、かつ開口部２２ａ、２２ｂ、２３ａ、２３ｂの穴開け加工して上側の梁部材分割体１４ａを形成する。
【００４６】
次に、下側の梁部材分割体１４ｂおよびケース断熱保持部材１７１としても、金属製のシート状素材から所定形状に外形を切断し、この所定形状のシート部材をプレス加工して略半筒状に形成し、かつ開口部２０ａ、２０ｂ、２１ａ、２１ｂ、開口部１７１ｄの穴開け加工することにより、形成する。
【００４７】
次に、下側の梁部材分割体１４ｂおよびケース断熱保持部材１７１を下型の上側に配設して、下側の梁部材分割体１４ｂおよびケース断熱保持部材１７１に対して、図１３乃至図１５に示す空所３００を開けるように、その上側から上型を配設する。
【００４８】
具体的には、空所３００において、断熱保持部材１６１ｂの中央部（図５中Ｂ−Ｂ断面図）に相当する断面は、図１３に示すように形成されている。空所３００において、断熱保持部材１６１ｂの右左方向の端部（図５中Ａ−Ａ断面図）に相当する断面は、図１４に示すように形成されている。また、空所３００において、断熱保持部材１６１ｂが形成されていない部分（図５中Ｄ−Ｄ断面図に相当する部分）の断面は、図１５に示すように形成されている。なお、図１３乃至図１５中符号３０１、３０２は上型、下型を示す。
【００４９】
このように形成される空所３００内に上型の注入口（図示しない）から流動状態の発泡材料を注入して固着させる。このことにより、上型および下型の間において、ダクト分割体１４ｄおよび断熱保持部材１６１ｂが一体に成形されることになる。その後、上型および下型から、ダクト分割体１４ｄおよび断熱保持部材１６１ｂを外すと、下側の梁部材分割体１４ｂおよびケース断熱保持部材１７１に対して一体化されたダクト分割体１４ｄおよび断熱保持部材１６１ｂの成形が終了する。
【００５０】
次に、上側の梁部材分割体１４ａを下型の上側に配設して、上側の梁部材分割体１４ａに対して図１６、図１７に示す空所３１０を開けるようにその上側から上型を配設する。
【００５１】
具体的には、空所３１０において、断熱保持部材１６１ａに相当する部分（図８中Ｃ−Ｃ断面図に相当する部分）の断面は、図１６に示すように形成され、断熱保持部材１６１ａが形成されていない部分（図８中Ｅ−Ｅ断面図に相当する部分）の断面は、図１７に示すように形成されている。なお、図１６、図１７中符号３０３、３０４は上型、下型を示す。
【００５２】
このように形成される空所３１０内に上型の注入口（図示しない）から流動状態の発泡材料を注入して固着させる。このことにより、上型および下型の間において、ダクト分割体１４ｃおよび断熱保持部材１６１ａが一体に成形されることになる。その後、上型および下型から、ダクト分割体１４ｃおよび断熱保持部材１６１ａを外すと、上側の梁部材分割体１４ａに対して一体化されたダクト分割体１４ｃおよび断熱保持部材１６１ａの成形が終了する。
【００５３】
次に、通風路仕切り部材３０の２つのセンタフェイス通路が下側の梁部材分割体１４ｂのセンタフェイス用開口部２０ａ、２０ｂと合致するように、通風路仕切り部材３０を下側梁部材分割体１４ｂの底面上に載せる。
【００５４】
次に、ダクト分割体１４ｃ、１４ｄ、断熱保持部材１６１ａ、１６１ｂが互いに対向するように下側梁部材分割体１４ｂに対して上側の梁部材分割体１４ａを向かい合わせる。そして、下側梁部材分割体１４ｂのツバ部１５１ｂの上壁を上側の梁部材分割体１４ａのツバ部１５１ａの下壁に直接当接した状態にて、ボルト等の接合手段により接合する。
【００５５】
以上により、ダクト分割体１４ｃ、１４ｄの互いの先端部が密着して筒状に成形されて、かつ、各断熱保持部材１６１ａ、１６１ｂがそれぞれ組み合わさって中空部をそれぞれ形成する。その後、それぞれの中空部内に車両電気配線２０を通す。これにより、梁部材１４の長手方向に並行に車両電気配線２０が配設されることになる。
【００５６】
以下、本実施形態の特徴につき述べる。すなわち、筒状に形成される梁部材１４（ダクトケース）と、この梁部材１４の内側に配設されて略筒状に形成されているダクト分割体１４ｃ、１４ｄ（断熱部材）と、このダクト分割体１４ｃ、１４ｄから開口部１７１ｄ、開口部１７１ｃ内を貫通して外側に延出して車両電気配線２０を保持するようにそれぞれ形成される上下の断熱保持部材１６１ａ、１６１ｂと、を備える。
【００５７】
ここで、ダクト分割体１４ｃおよび上側の断熱保持部材１６１ａの双方で１つの部品とすることができ、ダクト分割体１４ｄおよび下側の断熱保持部材１６１ｂの双方で１つの部品とすることができる。したがって、ダクト分割体１４ｃ、１４ｄ、上下の断熱保持部材１６１ａ、１６１ｂの４点をそれぞれ別の部品とする場合に比べて、部品点数を減らすことができる。これにより、部品点数を増やすことなく、車両電気配線２０を断熱保持部材１６１ａ、１６１ｂにより保持できる。
【００５８】
また、ケース断熱保持部材１７１が、下側の梁部材分割体１４ｂから延出して断熱保持部材１６１ｂを保持するように形成されている。このことにより、下側の梁部材分割体１４ｂによって、ケース断熱保持部材１６１ｂを介して車両電気配線２０をを保持することになる。このため、車両電気配線２０を、より確実に保持することができる。
【００５９】
さらに、ダクト分割体１４ｃおよび断熱保持部材１６１ａとしては、一体成形されているものを用いている。このため、ダクト分割体１４ｃおよび断熱保持部材１６１ａを別々に成形してから互いを接続する場合にに比べて、部品点数を減らすことができ、製造コストを減らすことができる。同様に、ダクト分割体１４ｄおよび下側の断熱保持部材１６１ｂとしては、一体成形されているものを用いているので、ダクト分割体１４ｄおよび下側の断熱保持部材１６１ｂを別々に成形してから互いを接続する場合にに比べて、部品点数を減らすことができ、製造コストを減らすことができる。
【００６０】
そして、断熱保持部材１６１ａ、１６１ｂの素材としては、柔軟性を有する発泡材料から成るものを用いることにより、車両電気配線２０を、良好に保護することができる。
【００６１】
（第２実施形態）
上述した第１実施形態では、上下の梁部材分割体１４ａ、１４ｂを別々に成形した例を示したが、図１８に示すように、上下の梁部材分割体１４ａ、１４ｂおよびケース断熱保持部材１７１を一体に成形されている梁部材１４を用いるようにしてもよい。
【００６２】
本実施形態では、梁部材１４の素材としては、例えば、樹脂を用い、そして樹脂成形により梁部材１４が一体成形されるようにする。そして、上述した第１実施形態で示した断熱保持部材１６１ａが削除され、断熱保持部材１６１ｂだけで車両電気配線２０を保持する。
【００６３】
この場合、梁部材１４および断熱保持部材１６１ｂを次のように別々に成形する。
【００６４】
すなわち、梁部材分割体１４の内側にシート状の樹脂発泡材を挿入して、筒状に形成する。このことにより、梁部材分割体１４の内側においてダクト部１４１が樹脂発泡材により成形されることになる。また、断熱保持部材１６１ｂに相当するシート部材をシート状の樹脂発泡材により成形しておき、このシート部材の先端部に接着剤を付けた状態で開口部１７ｃ内を通してダクト部１４１に接着させる。その後、当該シート部材をケース断熱保持部材１７１の表面に沿わせるように配設する。
【００６５】
以上により、断熱保持部材１６１ｂとしては、ダクト部１４１から開口部１７ｃ内を貫通して梁部材１４の外側に延出して車両電気配線２０を保持するように形成されることになる。
【００６６】
（他の実施形態）
なお、上述した第１の実施形態では、ケース断熱保持部材１７１および梁部材分割体１４ｂを一体成形されたものを用いるものを示したが、これに限らず、それぞれ別々に成形してから互いを接着材等で接続するようにしてもよい。
【００６７】
さらに、上述した第１の実施形態では、ダクトケースとしては梁部材１４を用いる例（すなわち、梁部材１４に車両空調用ダクト構造を内包させるもの）を示したが、これに限らず、梁部材１４に関わりないダクトケースを用いるようにしてもよい。
【００６８】
なお、上述した第１の実施形態では、他の部材として車両電気配線（ワーヤーハーネス）を用いる例を示したが、これに限らず、ゴムホースなどの管材を用いるようにしてもよい。
【００６９】
さらに、上述した第１の実施形態では、ダクト分割体１４ｃ、１４ｄとしては、梁部材分割体１４ａ、１４ｂのそれぞれに対して空所３００、３１０を開けるように上型、下型を組み合わせて空所３００、３１０に流動状態の発泡材料を注入して固着されて成型されたものを用いるようにしたが、これに限らず、次のようにしてもよい
すなわち、梁部材分割体１４ａ、１４ｂのそれぞれに対して流動状態の発泡材料を吹き付けて固着されて成型されたものを用いるようにしてもよい。この場合でも、断熱保持部材１６１ａ、１６１ｂのそれぞれの部分を成形する際には、上型、下型に相当する治具を用いることが好ましい。
【００７０】
さらに、上述した第１実施形態では、空調ダクト構造としては、計器盤部の内側に搭載されたものを示したが、これに限らず、空調ダクト構造としては、計器盤部に関係ない部分に搭載されるようにしてもよい。
【００７１】
さらに、上述した第１及び第２の実施形態では、梁部材分割体１４ａ、１４ｂおよびケース断熱保持部材１７１としては、金属製のものを用いる例を示したが、これに限らず、樹脂製のものを用いるようにしてもよい。
【図面の簡単な説明】
【図１】本発明の車両用空調ダクト構造の第１実施形態を示す斜視図である。
【図２】図１に示す車両用空調ダクト構造が適用される計器盤を示す図である。
【図３】図１の梁部材を示す車幅方向の断面図である。
【図４】図１の梁部材を示す車両前後方向の断面図である。
【図５】図１の下側の梁部材分割体の図である。
【図６】図１の下側の梁部材分割体の部分断面図である。
【図７】図１の下側梁部材分割体の部分断面図である。
【図８】図１の上側の梁部材分割体の図である。
【図９】図１の上側の梁部材分割体の部分断面図である。
【図１０】図１の下側のダクト分割体の断面図である。
【図１１】図１の下側のダクト分割体の断面図である。
【図１２】図１の上側の上側のダクト分割体の断面図である。
【図１３】図１の下側のダクト分割体を成形する金型を示す断面図である。
【図１４】図１の下側のダクト分割体を成形する金型を示す断面図である。
【図１５】図１の下側のダクト分割体を成形する金型を示す断面図である。
【図１６】図１の上側のダクト分割体を成形する金型を示す断面図である。
【図１７】図１の上側のダクト分割体を成形する金型を示す断面図である。
【図１８】本発明の車両用空調ダクト構造の第２実施形態を示す断面図である。
【符号の説明】
１４…梁部材、２０…車両電気配線、１４１…ダクト部材
１４ａ、１４ｂ…梁部材分割体、１５０ａ、１５０ｂ…半筒部、
１４ｃ、１４ｄ…ダクト分割体。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle air conditioning duct structure.
[0002]
[Prior art]
An indoor air-conditioning unit of a vehicle air-conditioning system is usually disposed at the center in the vehicle width direction inside an instrument panel in front of a vehicle interior (near a partition wall separating an engine room and a vehicle interior), and is temperature-controlled by the indoor air-conditioning unit. The conditioned air blows out from the center face outlet located at the center of the instrument panel in the vehicle width direction to the occupant face side at the center of the cabin, and is disposed at the left and right ends of the instrument panel in the vehicle width direction. The conditioned air is blown out from the side face outlet toward the occupant's face at the left and right ends of the vehicle.
[0003]
Therefore, an air-conditioning duct (side-face duct) for guiding the conditioned air from the indoor air-conditioning unit located at the center of the instrument panel in the vehicle width direction to the side-face outlets located at the left and right ends of the vehicle compartment is required.
Various wire harnesses (electric wires) are provided inside the instrument panel (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-7-52683
[Problems to be solved by the invention]
By the way, for example, when the above-described wire harness is fixed so as to be along the air conditioning duct, an extra member such as a fixing member for fixing the wire harness to the air conditioning duct is required, which may increase the manufacturing cost. There is.
[0006]
In view of the above, an object of the present invention is to provide a vehicle air-conditioning duct structure capable of holding other components such as vehicle electrical wiring without increasing the number of components.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, there is provided a duct case (14) formed in a cylindrical shape, and a duct case (14) disposed inside the duct case and formed in a substantially cylindrical shape. The heat insulating members (14c, 14d) are formed so as to extend from the heat insulating members through the openings (171d, 171c) of the duct case to the outside of the duct case to hold the other members (20). A heat insulating holding member (161a, 161b).
[0008]
As described above, since the heat-insulating holding member is formed so as to extend from the heat-insulating member through the opening of the duct case and extend to the outside of the duct case, the heat-insulating holding member and the heat-insulating member are formed as one component. The other members can be held by the heat insulating holding member without increasing the number of parts.
[0009]
Here, if the case heat insulating holding member (171) is configured to extend from the duct case and hold the heat insulating holding member, as in the invention according to claim 2, the duct case can be used via the case heat insulating holding member. It will hold other members. For this reason, other members can be held more reliably.
[0010]
Here, the heat insulating member and the heat insulating holding member can be formed separately from each other and then connected to each other. However, as in the invention according to claim 3, the heat insulating member and the heat insulating holding member are integrally formed. It is preferable to use a molded product. In this case, the number of components can be reduced, and the manufacturing cost can be reduced, as compared with a case where the components are separately formed and then connected to each other.
[0011]
Specifically, as in the invention described in claim 4, it is preferable to use a foamed material as the heat insulating member and the heat insulating holding member in order to protect other members.
[0012]
Further, as in the invention according to claim 5, it is preferable to use a vehicle electric wiring as another member.
[0013]
Further, as in the invention as set forth in claim 6, the duct case is formed by combining at least two duct case divided bodies (14a, 14b) formed in a substantially semi-cylindrical shape with end portions (151a) of the two case divided bodies. , 151b) are preferably used.
[0014]
Specifically, as in the invention according to claim 7, the heat insulating member and the heat insulating holding member are formed by spraying and fixing a flowable heat insulating material to the duct case and the case heat insulating holding member. It may be used.
[0015]
According to the invention described in claim 8, the heat insulating member and the heat insulating holding member are formed in a cavity (300, 310) formed by combining a mold (301, 302, 304, 305) with the duct case and the case heat insulating holding member. ) May be formed by injecting and fixing a flowable heat insulating material.
[0016]
As in the ninth aspect of the invention, the duct case and the case heat-insulating holding member may be formed integrally.
[0017]
As in the tenth aspect, the duct case and the case heat insulation holding member may be made of metal.
[0018]
As in the eleventh aspect, a beam member of a vehicle may be used as the duct case.
[0019]
Incidentally, reference numerals in parentheses of the above-mentioned units are examples showing the correspondence with specific units described in the embodiments described later.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment)
1 and 2 show a first embodiment of a vehicle air conditioning duct structure according to the present invention. The vehicle air-conditioning duct structure of FIG. 1 is mounted inside the instrument panel of FIG. The arrows in the drawings described below indicate the directions of the vehicle in the vehicle mounted state, that is, left and right, up and down, front and back.
[0021]
The instrument panel 10 shown in FIG. 2 is located at the front of the passenger compartment and is equipped with instruments, audio equipment, and the like. At the approximate center of the instrument panel 10 in the vehicle width (left / right) direction, center face outlets 11a and 11b through which the conditioned air is blown toward the occupant's face are arranged. Side face outlets 12a and 12b through which conditioned air is blown out toward the occupant's face or the vehicle side window glass are disposed at both ends in the vehicle width direction.
[0022]
An air conditioning unit 13 of the vehicle air conditioner is arranged inside the instrument panel 10. The air conditioning unit 13 is located at a substantially central portion in the vehicle width direction and adjusts the temperature and humidity of the air blown into the vehicle interior. Therefore, devices such as a cooling heat exchanger (evaporator) and a heating heat exchanger (hot water heater core) are built in the air conditioning unit 13. The air-conditioning unit 13 can be configured as a completely center-mounted type that integrally forms a blower unit that switches and introduces inside air or outside air and blows air. It may be configured as a center-placed type.
[0023]
On the other hand, a beam member (reinforce bar) 14 extending in the vehicle width direction is provided above the air conditioning unit 13 inside the instrument panel 10. The beam member 14 is a structural member whose main purpose is to support a steering device (not shown), and metal side brackets (not shown) made of an aluminum alloy or the like are integrally attached to both ends in the vehicle width direction. Both ends of the beam member 14 are fixed to the vehicle body by the side brackets.
[0024]
The beam member 14 has a hollow shape, and forms a cylindrical shape by joining two upper and lower beam member divided bodies 14a and 14b divided in the longitudinal direction. Specifically, as shown in FIG. 3, the upper and lower beam member divided bodies 14 a and 14 b are respectively formed from half-cylinder portions 150 a and 150 b formed in a concave cross-sectional shape, and from the half-cylindrical portions 150 a and 150 b in the vehicle left-right and front-back directions And has salient portions 151a and 151b protruding therefrom. The upper and lower beam member divided bodies 14a and 14b are formed by joining the flange portions 151a and 151b to each other. As the beam member divided bodies 14a and 14b, those obtained by bending a sheet-like metal such as an aluminum alloy into a semi-cylindrical shape are used.
[0025]
A cylindrical duct 141 is provided on the inner surface of the beam member 14 (beam member body). The duct member 141 serves as a passage for guiding air for air conditioning. As a result, the vehicle air-conditioning duct structure is included in the beam member 14.
[0026]
Specifically, the duct member 141 is formed by joining half-cylindrical duct divided bodies 14c and 14d. The duct divided body 14c is disposed on the inner wall of the half-tube part 150a of the beam member divided body 14a, and the duct divided body 14d is disposed on the inner wall of the half-tube part 150b of the beam member divided body 14b.
[0027]
The material of the duct divided bodies 14c and 14d is made of a heat-insulating sound-absorbing material having an air layer. Specifically, as a material of the duct divided bodies 14c and 14d, a resin foam material such as polypropylene, polyethylene, or urethane foam, polypropylene foam, or polyethylene foam is suitable. These resin foams have an air layer by foaming themselves, and exhibit a heat insulating function. Further, a sound absorbing effect is provided by adjusting the degree of foaming and the material. Here, a material mainly exhibiting only a heat insulating function, such as a hard urethane resin, may be used as a material of the duct divided bodies 14c and 14d. As described later, the duct divisions 14c and 14d are insert-molded using the beam member divisions 14a and 14b.
[0028]
As shown in FIG. 4, the vehicle electrical wiring 20 is disposed outside the beam member 14 in parallel with the longitudinal direction thereof, and the vehicle electrical wiring 20 is provided with a heat insulating holding member 161a as described later. , 161 b and the case heat insulating holding member 171. A holding structure for holding the vehicle electrical wiring 20 using the upper and lower heat insulating holding members 161a and 161b and the case heat insulating holding member 171 will be described later.
[0029]
On the other hand, as shown in FIG. 1, two center face openings 17a and 17b are opened at the center in the vehicle width (left / right) direction on the upper surface of the air conditioning unit 13, and the two center face openings are provided. Side face openings 18a and 18b are opened on both left and right sides of 17a and 17b. Further, a defroster opening 19 is opened on the vehicle front side of the face openings 17a, 17b, 18a, 18b.
[0030]
As shown in FIG. 3, four openings 20a, 20b, 21a, and 21b are opened at the center of the bottom portion 15 of the lower beam member divided body 14b in the vehicle width (left and right) direction. . The two openings 20a and 20b at the center are center face openings communicating with the center face openings 17a and 17b, and the two openings 21a and 21b on both left and right sides are the side face openings. It is an opening for a side face that communicates with the portions 18a and 18b. A defroster duct (not shown) is connected to the defroster opening 19.
[0031]
Further, two center face exit openings 22a and 22b are opened at the center in the vehicle width (left and right) direction on the upper wall surface of the upper beam member divided body 14a, and the vehicle rear side wall surface of the upper beam member divided body 14a. , Side face exit openings 23a and 23b are opened near both ends in the vehicle width (left / right) direction.
[0032]
Here, as shown in FIG. 3, a ventilation path partitioning member 30 is disposed in the center of the beam member 14 in the vehicle width (left / right) direction. The ventilation path partitioning member 30 is formed of a rigid resin material into a substantially box-like shape having two center face passages, and is sandwiched and fixed between the upper and lower beam member divided bodies 14a and 14b. In the ventilation path partitioning member 30, the lower ends of the two center face passages communicate with the center face openings 20a and 20b of the lower beam member divided body, and the upper ends of the two center face passages have the upper beam. It is sandwiched and fixed in a positional relationship communicating with the center face outlet openings 22a, 22b of the member divided body 14a.
[0033]
The two center face outlet openings 22a, 22b opening to the upper wall surface of the upper beam member divided body 14a are connected to the center face outlets 11a, 11b in FIG. Of these, two side face outlet openings 23a and 23b that open near both ends in the vehicle width direction are connected to the side face outlets 12a and 12b in FIG.
[0034]
Although not shown in FIG. 1, a stay for supporting the steering device is attached to a portion of the beam member 14 on the driver's seat side (a portion on the right side in FIG. 1) by screwing or the like to support the steering device. I can do it. In addition, the upper end of a center brace (post member), not shown, is attached to a substantially central portion of the beam member 14 by screwing or the like. The lower end of the center brace is fixed to the floor of the vehicle body by fastening means such as bolts.
[0035]
Next, a holding structure of the vehicle electric wiring 20 will be described with reference to FIGS. 1 and 5 to 12.
[0036]
FIG. 5 is a perspective view of the lower beam member divided body 14b (however, the structure at the right end is omitted), FIG. 6 is a cross-sectional view taken along line AA in FIG. 5, and FIG. It is BB sectional drawing in a middle. 6 and 7 show only the case heat insulation holding member 171. 8 is a perspective view of the upper beam member divided body 14a (however, the structure at the right end is omitted), and FIG. 9 is a cross-sectional view of the beam member divided body 14a taken along line CC.
[0037]
As shown in FIG. 1, the three case heat-insulating holding members 171 are arranged in the longitudinal direction of the lower beam member divided body 14b, and extend from the lower beam member divided body 14b to the vehicle rear, respectively. The heat insulation holding member 161b is formed so as to be held from below.
[0038]
Specifically, as shown in FIG. 5, the case heat insulating holding member 171 includes a case extending portion 171a extending in a plate shape from the lower beam member divided body 14b to the rear of the vehicle in a plate shape, and a tip of the extending portion. And a case semi-cylindrical portion 171b that is formed in a semi-cylindrical shape on the side and holds the heat-insulating holding member 161b from below.
[0039]
Here, an opening 171c is formed in the center of the extension 171a in the left-right direction. As shown in FIG. 8, an opening 171d is formed in the upper beam member divided body 14a, and when the upper and lower beam member divided bodies 14a and 14b are combined, the opening 171d becomes the opening part 171d. 171c.
[0040]
Further, as shown in FIG. 10, the heat-insulating holding member 161b has an extending portion 180a extending from the duct divided body 14d through the opening 171c, and a case at the tip side of the extending portion 180a as shown in FIG. And a semi-cylindrical portion 180b formed in a tubular shape along the semi-cylindrical portion 171b. The semi-cylindrical portion 180b holds and protects the vehicle electric wiring 20 from below.
[0041]
FIG. 10 is a cross-sectional view showing a central portion of the heat-insulating holding member 161b in the longitudinal direction of the half-cylindrical portion 180b (a cross-sectional view corresponding to a BB cross section in FIG. 5). FIG. 11 is a cross-sectional view showing a left end portion of the heat-insulating holding member 161b in the longitudinal direction of the half-cylindrical portion 180b (a cross-sectional view corresponding to the AA cross section in FIG. 5).
[0042]
Further, as shown in FIG. 12, the heat insulating holding member 161a is formed into an extended portion 181a extending from the duct divided body 14c to the rear side of the vehicle through the opening 171d, and is formed in a cylindrical shape at the distal end side of the extended portion 181a. The semi-cylindrical portion 181b is formed in a tubular shape in combination with the semi-cylindrical portion 180b, and holds and protects the vehicle electrical wiring 20 from above.
[0043]
Next, a method for forming the vehicle air conditioning duct structure according to the first embodiment will be specifically described.
[0044]
First, as a material for the upper and lower beam member divided bodies 14a and 14b, a metal sheet material and an upper mold and a lower mold for forming the duct divided bodies 14c and 14d with resin are prepared.
[0045]
Next, the outer shape of the sheet material is cut into a predetermined shape, the sheet member having the predetermined shape is pressed to form a substantially semi-cylindrical shape, and the openings 22a, 22b, 23a, and 23b are punched. The upper beam member divided body 14a is formed.
[0046]
Next, also as the lower beam member divided body 14b and the case heat insulation holding member 171, the outer shape is cut into a predetermined shape from a metal sheet material, and the sheet member having the predetermined shape is pressed to form a substantially half cylindrical shape. And the holes 20a, 20b, 21a, 21b and the opening 171d are formed by drilling.
[0047]
Next, the lower beam member divided body 14b and the case heat insulation holding member 171 are disposed on the upper side of the lower mold, and the lower beam member divided body 14b and the case heat insulation holding member 171 are shown in FIGS. An upper die is arranged from the upper side so as to open the space 300 shown in FIG.
[0048]
Specifically, in the cavity 300, a cross section corresponding to a central portion (BB cross section in FIG. 5) of the heat insulating holding member 161b is formed as shown in FIG. In the empty space 300, a cross section corresponding to the right and left ends (cross-sectional view taken along the line AA in FIG. 5) of the heat insulating holding member 161b is formed as shown in FIG. Further, in the cavity 300, a cross section of a portion where the heat insulating holding member 161b is not formed (a portion corresponding to a cross section taken along line DD in FIG. 5) is formed as shown in FIG. Reference numerals 301 and 302 in FIGS. 13 to 15 indicate an upper die and a lower die.
[0049]
A flowing foam material is injected into the cavity 300 thus formed from an upper injection port (not shown) and fixed. As a result, between the upper mold and the lower mold, the duct divided body 14d and the heat-insulating holding member 161b are integrally formed. After that, when the duct divided body 14d and the heat insulating holding member 161b are removed from the upper mold and the lower mold, the duct divided body 14d and the heat insulating holding member integrated with the lower beam member divided body 14b and the case heat insulating holding member 171 are removed. The forming of the member 161b is completed.
[0050]
Next, the upper beam member divided body 14a is arranged on the upper side of the lower mold, and the upper mold is opened from the upper side so as to open the space 310 shown in FIGS. 16 and 17 with respect to the upper beam member divided body 14a. Is arranged.
[0051]
Specifically, in the void 310, a cross section of a portion corresponding to the heat insulating holding member 161a (a portion corresponding to the CC cross-sectional view in FIG. 8) is formed as shown in FIG. The cross section of the portion not formed (the portion corresponding to the EE cross section in FIG. 8) is formed as shown in FIG. Note that reference numerals 303 and 304 in FIGS. 16 and 17 indicate an upper die and a lower die.
[0052]
A flowing foam material is injected into the cavity 310 thus formed from an upper injection port (not shown) and fixed. As a result, between the upper die and the lower die, the duct divided body 14c and the heat-insulating holding member 161a are integrally formed. Thereafter, when the duct divided body 14c and the heat insulating holding member 161a are removed from the upper mold and the lower mold, the forming of the duct divided body 14c and the heat insulating holding member 161a integrated with the upper beam member divided body 14a is completed. .
[0053]
Next, the ventilation path partitioning member 30 is divided into lower beam member divided bodies such that the two center face passages of the ventilation path partitioning member 30 match the center face openings 20a, 20b of the lower beam member divided body 14b. Place on the bottom of 14b.
[0054]
Next, the upper beam member divided body 14a faces the lower beam member divided body 14b such that the duct divided bodies 14c and 14d and the heat insulation holding members 161a and 161b face each other. Then, in a state where the upper wall of the flange portion 151b of the lower beam member divided body 14b is directly in contact with the lower wall of the flange portion 151a of the upper beam member divided body 14a, the joining is performed by a joining means such as a bolt.
[0055]
As described above, the distal end portions of the duct divided bodies 14c and 14d are closely formed into a cylindrical shape, and the heat insulating holding members 161a and 161b are combined with each other to form hollow portions. Thereafter, the vehicle electric wiring 20 is passed through each hollow portion. As a result, the vehicle electric wiring 20 is arranged in parallel with the longitudinal direction of the beam member 14.
[0056]
Hereinafter, features of the present embodiment will be described. That is, a beam member 14 (duct case) formed in a cylindrical shape, duct divided bodies 14 c and 14 d (heat insulating member) disposed inside the beam member 14 and formed in a substantially cylindrical shape, and the duct Upper and lower heat insulating holding members 161a and 161b are formed to extend from the divided bodies 14c and 14d to the outside through the opening 171d and to hold the vehicle electric wiring 20, respectively.
[0057]
Here, both the duct split 14c and the upper heat-insulating holding member 161a can be formed as one component, and both the duct split 14d and the lower heat-insulating holding member 161b can be formed as one component. Therefore, the number of parts can be reduced as compared with the case where the four points of the duct divided bodies 14c and 14d and the upper and lower heat insulating holding members 161a and 161b are separate parts. Thereby, the vehicle electric wiring 20 can be held by the heat insulating holding members 161a and 161b without increasing the number of parts.
[0058]
Further, a case heat insulating holding member 171 is formed so as to extend from the lower beam member divided body 14b and hold the heat insulating holding member 161b. Thus, the vehicle electrical wiring 20 is held by the lower beam member divided body 14b via the case heat insulating holding member 161b. For this reason, the vehicle electric wiring 20 can be held more reliably.
[0059]
Further, as the duct divided body 14c and the heat insulation holding member 161a, those integrally formed are used. For this reason, the number of parts can be reduced and the manufacturing cost can be reduced as compared with a case where the duct divided body 14c and the heat insulating holding member 161a are separately formed and then connected to each other. Similarly, since the divided duct 14d and the lower heat-insulating holding member 161b are integrally formed, the duct split 14d and the lower heat-insulating holding member 161b are separately molded and then separated from each other. The number of parts can be reduced and the manufacturing cost can be reduced as compared with the case of connecting.
[0060]
By using a material made of a flexible foam material as the material of the heat insulation holding members 161a and 161b, the vehicle electric wiring 20 can be protected well.
[0061]
(2nd Embodiment)
In the above-described first embodiment, an example in which the upper and lower beam member divided bodies 14a and 14b are separately formed is shown. However, as shown in FIG. 18, the upper and lower beam member divided bodies 14a and 14b and the case heat insulating holding member 171 are provided. May be used as the beam member 14 integrally formed.
[0062]
In the present embodiment, for example, a resin is used as a material of the beam member 14, and the beam member 14 is integrally formed by resin molding. Then, the heat-insulating holding member 161a shown in the first embodiment is deleted, and the vehicle electric wiring 20 is held only by the heat-insulating holding member 161b.
[0063]
In this case, the beam member 14 and the heat insulation holding member 161b are separately formed as follows.
[0064]
That is, a sheet-shaped resin foam material is inserted into the inside of the beam member divided body 14 to form a tubular shape. As a result, the duct portion 141 is formed of the resin foam material inside the beam member divided body 14. In addition, a sheet member corresponding to the heat insulating holding member 161b is formed of a sheet-like resin foam material, and the tip of the sheet member is adhered to the duct portion 141 through the opening 17c with an adhesive applied thereto. After that, the sheet member is arranged along the surface of the case heat insulation holding member 171.
[0065]
As described above, the heat insulation holding member 161b is formed so as to extend from the duct portion 141 through the opening 17c to the outside of the beam member 14 to hold the vehicle electric wiring 20.
[0066]
(Other embodiments)
In the above-described first embodiment, the case in which the case heat-insulating holding member 171 and the beam member divided body 14b are integrally formed is used. However, the present invention is not limited thereto. The connection may be made with an adhesive or the like.
[0067]
Further, in the above-described first embodiment, an example in which the beam member 14 is used as the duct case (that is, the beam member 14 includes the duct structure for vehicle air conditioning) has been described. A duct case irrespective of 14 may be used.
[0068]
In the above-described first embodiment, an example in which the vehicle electrical wiring (wire harness) is used as another member has been described. However, the present invention is not limited to this, and a tube material such as a rubber hose may be used.
[0069]
Furthermore, in the first embodiment described above, as the duct divided bodies 14c and 14d, the upper mold and the lower mold are combined so as to open the cavities 300 and 310 with respect to the beam member divided bodies 14a and 14b, respectively. Although a foamed material in a fluid state is injected into the places 300 and 310 and fixed and molded, the present invention is not limited to this, and the following may be used. That is, the beam member divided bodies 14a and 14b may be used. A molded material which is fixed by spraying a foamed material in a fluid state to each of them may be used. Also in this case, it is preferable to use jigs corresponding to the upper mold and the lower mold when molding the respective portions of the heat insulating holding members 161a and 161b.
[0070]
Furthermore, in the first embodiment described above, the air-conditioning duct structure is described as being mounted inside the instrument panel. However, the air-conditioning duct structure is not limited to this. It may be mounted.
[0071]
Further, in the above-described first and second embodiments, the example in which the metal member is used as the beam member divided bodies 14a and 14b and the case heat insulating holding member 171 has been described. You may use a thing.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a vehicle air conditioning duct structure of the present invention.
2 is a diagram showing an instrument panel to which the vehicle air-conditioning duct structure shown in FIG. 1 is applied.
FIG. 3 is a sectional view in the vehicle width direction showing the beam member of FIG. 1;
FIG. 4 is a cross-sectional view of the beam member of FIG. 1 in a vehicle front-rear direction.
FIG. 5 is a view of a lower beam member divided body in FIG. 1;
FIG. 6 is a partial cross-sectional view of the lower beam member divided body of FIG. 1;
FIG. 7 is a partial sectional view of the lower beam member divided body of FIG. 1;
FIG. 8 is a view of the upper beam member divided body of FIG. 1;
FIG. 9 is a partial cross-sectional view of the upper beam member divided body of FIG. 1;
FIG. 10 is a sectional view of the lower duct segment of FIG. 1;
FIG. 11 is a sectional view of the lower duct segment of FIG. 1;
FIG. 12 is a cross-sectional view of the upper divided duct of FIG. 1;
FIG. 13 is a cross-sectional view showing a mold for molding the lower duct segment of FIG. 1;
FIG. 14 is a cross-sectional view showing a mold for molding the lower duct segment of FIG. 1;
FIG. 15 is a cross-sectional view showing a mold for molding the lower duct segment of FIG. 1;
FIG. 16 is a cross-sectional view showing a mold for molding the upper divided duct of FIG. 1;
FIG. 17 is a cross-sectional view showing a mold for molding the upper divided duct of FIG. 1;
FIG. 18 is a sectional view showing a second embodiment of the vehicle air conditioning duct structure of the present invention.
[Explanation of symbols]
14 beam member, 20 vehicle electric wiring, 141 duct member 14a, 14b beam member divided body, 150a, 150b half cylinder portion,
14c, 14d: divided ducts.

Claims

A duct case (14) formed in a cylindrical shape,
A heat insulating member (14c, 14d) disposed inside the duct case and formed in a substantially cylindrical shape;
A heat insulating holding member (161a, 161b) formed to extend from the heat insulating member through the inside of the opening (171d, 171c) of the duct case to the outside of the duct case to hold another member (20). )When,
An air conditioning duct structure for a vehicle, comprising:

The vehicle air-conditioning duct structure according to claim 1, further comprising a case heat-insulating holding member (171) extending from the duct case and formed to hold the heat-insulating holding member.

The air-conditioning duct structure for a vehicle according to claim 1 or 2, wherein the heat-insulating member and the heat-insulating holding member are integrally formed.

The vehicle air conditioning duct structure according to any one of claims 1 to 3, wherein the heat insulation member and the heat insulation holding member are made of a foam material.

The vehicle air conditioning duct structure according to any one of claims 1 to 4, wherein the other member is a vehicle electric wiring.

The duct case is formed by combining at least two duct case divided bodies (14a, 14b) formed in a substantially semi-cylindrical shape and joining ends (151a, 151b) of the two case divided bodies. The air-conditioning duct structure for a vehicle according to any one of claims 1 to 5, wherein:

7. The heat insulating member and the heat insulating holding member are formed by spraying and fixing a flowable heat insulating material to the duct case and the case heat insulating holding member. An air conditioning duct structure for a vehicle according to any one of the above.

The heat insulating member and the heat insulating holding member are in a flowing state in a cavity (300, 310) formed by combining a molding die (301, 302, 304, 305) with the duct case and the case heat insulating holding member. The air-conditioning duct structure for a vehicle according to any one of claims 1 to 7, wherein the heat-insulating material is injected, fixed and molded.

The vehicle air-conditioning duct structure according to any one of claims 1 to 8, wherein the duct case and the case heat-insulating holding member are integrally formed.

The air-conditioning duct structure for a vehicle according to any one of claims 1 to 7, wherein the duct case and the case heat-insulating holding member are made of metal.

The air-conditioning duct structure for a vehicle according to any one of claims 1 to 10, wherein the duct case is a beam member of a vehicle.