JP4046020B2

JP4046020B2 - Hair dryer

Info

Publication number: JP4046020B2
Application number: JP2003169884A
Authority: JP
Inventors: 謙吾伊東; 至齋田; 清高島; 憲二鎌田; 貴司中川
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2003-06-13
Filing date: 2003-06-13
Publication date: 2008-02-13
Anticipated expiration: 2023-06-13
Also published as: JP2005000547A

Description

【０００１】
【発明の属する技術分野】
本発明は温風と冷風を毛髪に同時に吐出するヘアドライヤに関する。
【０００２】
【従来の技術】
従来のヘアドライヤは、毛髪に温風を当てることで、寝癖を伸ばしたり、毛髪をカールさせたりする癖付けや、毛髪の乾燥に利用されている。ところでヘアドライヤによって発生させた温風のみを毛髪に当てた場合、温風の熱によって水素結合を切断し毛髪を一時的に癖付けすることは可能ではあるが、このように癖付けした状態の毛髪を十分に固定するには、温風により熱した毛髪に冷風を当てて再び水素結合させることが必要である。また温風だけを毛髪に当てた場合には毛髪が過乾燥状態となり、毛髪がぱさついてまとまりのない状態となってしまい、光が当たった時に乱反射して艶があるように見えず、このような過乾燥を防止する意味でも毛髪に冷風を当てる必要がある。上記従来のヘアドライヤを用いて例えばスイッチを温風から冷風に切り換えて温風で熱した髪に冷風を当てることは可能ではあるが、温風を作るヒータの予熱等によって冷風が速やかに吹き出されず時間がかかってしまい、またスイッチによる温冷風の切換操作が面倒である。
【０００３】
上記問題を改善するため近年では温風と冷風とを同時に吐出するヘアドライヤが提供されている。この種のヘアドライヤとしては、境界壁によって仕切られた冷風流路及びヒータを内装した温風流路を有し、冷風用流路の吐出部から冷風を吐出すると共に、この冷風の吐出と同時に温風用流路の吐出部から温風を吐出するファンを設けたものがあり、温風と冷風とを同時に吐出するヘアドライヤを移動させたり、向きを変えたりして毛髪に温風及び冷風を交互に当てていた（例えば特許文献１）。
【０００４】
しかしながら上記特許文献１に示すヘアドライアは、冷風流路及び温風流路は境界壁によって仕切られているだけであって流路間が熱的に遮断されておらず、境界壁を介して冷風流路を流れる空気が温風流路を流れる空気の熱により暖められてしまったり、逆に温風流路を流れる空気が冷風流路を流れる空気により冷やされてしまったりして、上記した温風による毛髪の変形や毛髪の乾燥、冷風による毛髪の固定や過乾燥の防止を効率良く行うことができなかった。
【０００５】
【特許文献１】
実開昭５７−１６６８０８号公報
【０００６】
【発明が解決しようとする課題】
本発明は上記の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、隣接する流路間を熱的に遮断して、各流路を流れる空気の温度を適切な温度にでき、温風による毛髪の変形や毛髪の乾燥、冷風による毛髪の固定や過乾燥の防止を効率良く行うことができるヘアドライヤを提供することにある。
【０００７】
【課題を解決するための手段】
上記課題を解決するために本発明に係るヘアドライヤは、内側の流路２と内側の流路２に隣接して該内側の流路２を囲む外側の流路３を形成し、両流路の吐出部を外側ノズル２３と内側ノズル２４からなる二重円筒構造のノズル部材２２により構成し、両流路２、３の空気を毛髪に向けて同時に吐出するための送風手段を有し、両流路２、３のうち、内側の流路２にのみヒータ７を設けて、該内側の流路２を温風が流れる流路とすると共に外側の流路３を冷風が流れる流路とし、前記内側の流路２と外側の流路３を仕切る境界壁４を、合成樹脂製で円筒状の壁部材５と、壁部材５の内面に積層した断熱性を有する円筒状の断熱部材６とで構成して成ることを特徴とするものである。
【０００８】
このように隣接する流路２、３を仕切る境界壁４を断熱構造とすることで、隣接する流路２、３間を熱的に遮断することができ、これにより各流路２、３を流れる空気はこれと隣接する流路２、３を流れる空気からの熱的影響を受けず、各流路２、３を流れる空気の温度を適切な温度にでき、結果、温風による毛髪の変形や毛髪の乾燥、冷風による毛髪の固定や過乾燥の防止を効率良く行うことが可能となる。
【００１０】
また、境界壁４を、合成樹脂製の壁部材５と、壁部材５に積層した断熱部材６とで構成することで、加工がしやすく安価な合成樹脂からなる壁部材５に断熱部材６を積層するだけで断熱構造を備えた境界壁４を形成することができて、ヘアドライヤ１のコストを削減できる。また、壁部材５よりも耐熱性の優れた断熱部材６を温度の高い方の空気が流れる一方の流路２側に配してあるので、高温の空気、ヒータ７の熱等による壁部材５の変形や溶けを防止できる。
【００１１】
また請求項２は請求項１において、上記壁部材５と断熱部材６との間に空間２８を形成したことを特徴とするものである。
【００１２】
このように壁部材５と断熱部材６の間に空間２８を形成することで、境界壁４の断熱性を高めることができ、隣接する流路２、３間をより一層熱的に遮断することができる。
【００１３】
また請求項３は請求項１又は請求項２において、上記断熱部材６をマイカシートとしたことを特徴とするものである。
【００１４】
また請求項４は請求項１又は請求項２において、上記断熱部材６をガラス繊維布としたことを特徴とするものである。
【００１５】
【発明の実施の形態】
本発明のヘアドライヤはその内部に異なる温度の空気が流れる複数の流路を並設してあり、隣接する流路は境界壁によって仕切られている。複数の流路の上流側には、外部に開口する外気吸込口から外気を吸い込んで夫々の流路に送り、且つ各流路に流れる空気を各流路の吐出部から毛髪に向けて同時に吐出する送風手段を設けている。
【００１６】
以下本実施形態の一例を図１〜３に基づいて説明する。図示例のヘアドライヤ１は一方の流路２とこの一方の流路２に隣接する他方の流路３の２つの流路を有しており、一方の流路２は空気の流れる方向から見て他方の流路３に囲まれている。この内側に配された一方の流路２にはヒータ７を内装してあり、外側に配された他方の流路３にはヒータ７を設けず、これにより一方の流路２にはヒータ７により加温された温度の高い方の空気が流れ、他方の流路３にはヒータ７により加温されていない温度の低い方の空気が流れ、結果、両流路２、３に流れる空気の温度を異ならせている。
【００１７】
図１及び図２は本例のヘアドライヤ１の具体的構成を示す断面図である。図に示すようにヘアドライヤ１は後端部に後方に開口する外気吸込口８を有すると共に前端部に前方に開口する開口部９を有する略円筒状のハウジング１０で装置本体の外殻を構成してあり、ハウジング１０の後部にはハンドル部１１を下方に一体に突設している。なお、図中１２は電源供給用コードである。
【００１８】
ハウジング１０の内部の後部には上流側の開口が外気吸込口８に連通し且つ軸方向において内径及び外径が略同じである円筒状の整流筒１３を設けている。整流筒１３には送風手段としてプロペラファンのような軸流型のファン１４を内装している。このファン１４はハウジング１０の内部に設けたモータ１５により回転駆動するものであって、同心円上に均一に風を流しやすい特徴を有している。
【００１９】
ハウジング１０の内部の前部、即ち整流筒１３の下流側には、上流側端部の内径が整流筒１３の外径よりも大きい円筒状の風洞部１６を設けてあり、本例の風洞部１６はハンドル部１１よりも前側に位置するハウジング１０の内周面部により形成してある。
【００２０】
風洞部１６の内部には上流側の開口が整流筒１３の下流側の開口に連通するヒータ７を内装した円筒状の内筒１７を設けてあり、内筒１７と前述した風洞部１６とで二重円筒構造を形成している。内筒１７の中心線は風洞部１６の中心線上且つ整流筒１３の中心線の延長線上に位置し、内筒１７の上流側端部の外径は整流筒１３の内径と略同じである。内筒１７の上流側の端と整流筒１３の下流側の端とは軸方向に離してあり、整流筒１３の下流側端部及び内筒１７の上流側端部の間に、整流筒１３の内部及び内筒１７と風洞部１６の間の空間部１９を連通させる隙間Ｓを形成している。この隙間Ｓは軸方向の大きさが調整されてあり、これにより空間部１９に流れる空気の量と、内筒１７の内部に流れる空気の量の比率が調整されている。またこの隙間Ｓを形成したことに伴って、図２に示すように整流筒１３の下流側端部の外側に位置するハウジング１０の内周面部には整流筒１３とその外側のハウジング１０との間の空間部２０を閉塞する閉塞部材２１を設けてあり、前記隙間Ｓから流れてくる空気が空間部２０に流れ込むことを防止して効率良く空気を流せるようにしている。
【００２１】
風洞部１６の下流側端部には合成樹脂製の二重円筒構造を有するノズル部材２２を設けている。ノズル部材２２は、外側ノズル２３と、該外側ノズル２３の内部に位置する外側ノズル２３と一体に設けた内側ノズル２４とからなり、内側ノズル２４及び外側ノズル２３の中心線は内筒１７の中心線の延長線上に位置する。外側ノズル２３の上流側の開口は風洞部１６の下流側の開口（開口部９）に連通接続してあり、内側ノズル２４の上流側の開口と内筒１７の下流側の開口とはヒータ７の熱や内筒１７を流れる温度の高い方の空気によって内側ノズル２４の変形や溶けが発生することを防止するために軸方向にやや離している。上記内側ノズル２４の内部は内筒１７の内部と連通し、外側ノズル２３と内側ノズル２４との間の空間部２５は空間部１９に連通している。
【００２２】
そして本例では上記ヘアドライヤ１の内筒１７の内部及び内筒１７の下流側に設けた内側ノズル２４の内部とで上記一方の流路２を構成すると共に、空間部１９及び空間部２５で上記他方の流路３を構成して、内筒１７を一方の流路２と他方の流路３を仕切る境界壁４とし、さらには内側ノズル２４を一方の流路２を流れる空気の吐出部とすると共に、外側ノズル２３を他方の流路３を流れる空気の吐出部としている。
【００２３】
上記境界壁４としての内筒１７について詳述すると、図１に示すように内筒１７は、隣接する流路２、３のうち、他方の流路３側（即ち温度の低い方の空気が流れる流路側）に配設した耐熱性を有する合成樹脂からなる壁部材５と、一方の流路２側（即ち温度の高い方の空気が流れる流路側）に配設した断熱性及び耐熱性を有する断熱部材６とで構成される。断熱部材６は壁部材５の表面に積層してあり、本例の熱伝導度の低い断熱部材６としてはマイカシートを用いている。なお断熱部材６としてはガラス繊維布を用いても良く、また断熱部材６としてはその他の従来から公知の種々の断熱部材を用いても良いものとする。
【００２４】
境界壁４（内筒１７）の壁部材５は円筒状の本体部２６で主体を構成してあり、本体部２６の内周面には本体部２６の中心に向かって突出する突部２７を周方向に複数設けている。各突部２７は周方向において等間隔で配され、これら複数の突部２７の先端面には壁部材５と同心の円筒状の断熱部材６を積層している。これにより断熱部材６と壁部材５の本体部２６とを径方向に離し、壁部材５と断熱部材６の間に断熱用の空間２８を複数形成している。なお本例では断熱部材６と壁部材５との間に断熱用の空間２８を形成した例を示したが、該空間２８を形成せずに、壁部材５の本体部２６の内周面に直接断熱部材６を積層しても良いものとする。
【００２５】
このように境界壁４を合成樹脂製の壁部材５と該壁部材５に積層した断熱部材６とで構成したことで、加工がしやすく安価な合成樹脂からなる壁部材５に断熱部材６を積層するだけで断熱構造を備えた境界壁４を形成することができて、ヘアドライヤ１のコストを削減でき、しかも本例では壁部材５よりも耐熱性の優れた断熱部材６を温度の高い方の空気が流れる一方の流路２側に配してあるので、高温の空気、ヒータ７の熱等による壁部材５の変形や溶けを防止できる。
【００２６】
次に上記送風手段により各流路２、３の吐出部から温度の高い方の空気と温度の低い方の空気を同時に吐出する場合について説明する。この場合使用者は、図１に示すハンドル部１１に設けた電源スイッチ２９や、モード切換スイッチ３０等の各種操作スイッチからなる操作部を使用者が操作する。操作部を操作することで図示しない制御部はヒータ７をＯＮにすると共にモータ１５をＯＮにする。モータ１５の駆動によりファン１４が回転すると、外気吸込口８から整流筒１３内にハウジング１０外部の外気を吸い込み、整流筒１３内に吸い込んだ空気を一方の流路２と他方の流路３の夫々に送り、一方の流路２ではヒータ７により加熱された空気を一方の流路２の吐出部から吐出し、同時に他方の流路３ではヒータ７による加熱を行わずにそのまま他方の流路３の吐出部から吐出する。
【００２７】
しかして一方の流路２の吐出部から吐出される空気である温風と、他方の流路３の吐出部から吐出される空気である前記温風と同時に吐出される冷風とを、毛髪に当てることで、まず毛髪の所望の部位に温風を当てて毛髪の変形や乾燥を行い、この後ヘアドライヤ１を移動させて（又は向きを変えて）、前記毛髪の温風が当たった部分に冷風を当てて毛髪の固定や、過乾燥の防止を行い、以下ヘアドラヤ１を移動させて上記動作を繰り返す。
【００２８】
ここで上記のように温度の異なる空気が流れる一方の流路２と他方の流路３を仕切る境界壁４を断熱構造としているので、両流路２、３間を熱的に遮断することができ、従来例のように境界壁４を介して他方の流路３を流れる温度の低い方の空気が一方の流路２を流れる温度の高い方の空気の熱により暖められてしまったり、一方の流路２を流れる温度の高い方の空気が他方の流路３を流れる温度の低い方の空気の熱により冷やされてしまったりすることを抑制でき、従って適切な温度の冷風及び温風を毛髪に当てることが可能となり、温風による毛髪の変形や毛髪の乾燥、冷風による毛髪の固定や過乾燥の防止を効率良く行うことができる。また壁部材５と断熱部材６の間に断熱用の空間２８を形成したこと、境界壁４を壁部材５と該壁部材５に積層した断熱部材６とで構成して二重構造としたこと、さらには耐熱性の高い壁部材５を用いたこと等、によってより一層両流路間２、３を熱的に遮断できる。
【００２９】
また本例のヘアドライヤ１は図２に示すように上記各流路２、３の吐出部から吐出される空気の吐出方向と同一方向にマイナスイオンを放出するイオン放出部３１を備えている。イオン放出部３１は、イオン用流路３３と、イオン用流路３３の途中に設けたマイナスイオンを発生するイオン発生部３４とからなる。イオン用流路３３の上流側端部は他方の流路３の途中に連通接続してあり、イオン用流路３３の下流側端部には各流路２、３の吐出部から吐出される空気の吐出方向と略同一方向に開口するイオン放出口３２を設けている。イオン放出口３２は各流路２、３の吐出部近傍に配設してあり、詳しくは空気の流れ方向から見て他方の流路３の吐出部の近傍且つ外側に位置している。また内筒１７には上記イオン発生部３４に高電圧を印加する高電圧発生部３５を内装している。
【００３０】
そして操作部を操作することで、イオン放出部３１は、上記冷風及び温風を同時に吐出している時に、マイナスイオン発生部３４にてマイナスイオンを発生すると共に、該マイナスイオンをイオン用流路３３を流れる温度の低い方の空気の流れに乗せてイオン放出口３２より毛髪に向かって放出する。イオン放出部７から放出されたマイナスイオンを毛髪に当てることで、毛髪の艶を出すことができ、しかもこのマイナスイオンは過乾燥状態となった毛髪に当てられるのではなく、冷風の効果によりぱさつきのなくなった毛髪に当てられるため、マイナスイオンによる艶出し効果がより一層向上する。ここでは特にマイナスイオンを温度の低い方の空気の流れに乗せて放出することで、マイナスイオンが温度の高い方の空気により加熱され難くて蒸散せず、艶出し効果をさらに向上させている。なおイオン放出部３１としてはこれに限定されるものではなく、例えば上記イオン用流路３３の上流側端部を他方の流路３に連通させず、イオン発生部３４で発生したマイナスイオンを他方の流路３から吹き出される冷風により誘引しても良いし、また一方の流路２又は他方の流路３内にイオン発生部を設け、一方の流路２又は他方の流路３を流れる空気によりマイナスイオンを一方の流路２の吐出部又は他方の流路３の吐出部より吐出するようにしても良い。
【００３１】
なお上記の実施例では各流路にヒータ７を設けるか否かにより、複数の流路２、３に流れる空気の温度を夫々異ならせたが、各流路２、３の夫々にヒータを設け、夫々のヒータ７のＯＮ／ＯＦＦの切り換えや、ヒータ７の出力変化により、複数の流路２、３に流れる空気の温度を夫々異ならせても良い。また上記のヘアドライヤ１は前述した冷風と温風を同時に吐出するモードを有していれば良いものとするが、これに加えて、前述した冷風及び温風に加えてマイナスイオンを放出するモードや、ヒータ７のＯＮ／ＯＦＦ、モータ１５のＯＮ／ＯＦＦ、イオン発生部３４のＯＮ／ＯＦＦを予め設定された値に自動的に切り換えるその他のモードを有していても良い。
【００３２】
【発明の効果】
以上説明したように本発明のヘアドライヤは隣接する流路間を熱的に遮断して、各流路を流れる空気の温度を適切な温度にでき、温風による毛髪の変形や毛髪の乾燥、冷風による毛髪の固定や過乾燥の防止を効率良く行うことができる。
【図面の簡単な説明】
【図１】本発明の実施の形態の一例を示すヘアドライヤの側断面図である。
【図２】同上の平面断面図である。
【図３】図１のＡ―Ａ線断面図である。
【符号の説明】
１ヘアドライヤ
２一方の流路
３他方の流路
４境界壁
５壁部材
６断熱部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hair dryer that simultaneously discharges hot air and cold air to hair.
[0002]
[Prior art]
Conventional hair dryers are used to apply hair that is warm to the hair to stretch the bedclothes or curl the hair, or to dry the hair. By the way, when only hot air generated by a hair dryer is applied to the hair, it is possible to cut the hydrogen bond and heat the hair temporarily by the heat of the hot air. In order to sufficiently fix the hair, it is necessary to apply hydrogen bonding to the hair heated by warm air by applying cold air to the hair. In addition, when only warm air is applied to the hair, the hair becomes overdried, the hair becomes clumsy and uncohered, and it does not appear glossy due to irregular reflection when exposed to light. In order to prevent excessive overdrying, it is necessary to apply cold air to the hair. Using the conventional hair dryer, for example, it is possible to change the switch from hot air to cold air and apply cool air to the hair heated by the hot air, but the cold air is not blown out quickly due to the preheating of the heater that makes the hot air, etc. It takes time, and switching between hot and cold air by a switch is troublesome.
[0003]
In recent years, in order to improve the above problem, hair dryers that discharge hot air and cold air simultaneously have been provided. This type of hair dryer has a cool air flow channel partitioned by a boundary wall and a warm air flow channel with a heater, and discharges cool air from the discharge part of the cool air flow channel, and simultaneously with the discharge of the cool air, Some fans are equipped with a fan that discharges hot air from the discharge part of the flow path, and the hair dryer that discharges hot air and cold air at the same time is moved or changed in direction so that hot air and cold air are alternately applied to the hair. (For example, Patent Document 1).
[0004]
However, in the hair dryer shown in Patent Document 1, the cold air flow channel and the hot air flow channel are only partitioned by the boundary wall, and the flow channel is not thermally shut off, and the cold air flow channel is passed through the boundary wall. The air flowing through the hot air flow path is heated by the heat of the air flowing through the hot air flow path, and conversely, the air flowing through the hot air flow path is cooled by the air flowing through the cold air flow path. Deformation, hair drying, hair fixation with cold air, and prevention of overdrying could not be efficiently performed.
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 57-166808 [0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and the purpose of the present invention is to thermally shut off adjacent flow paths, and to set the temperature of air flowing through each flow path to an appropriate temperature. An object of the present invention is to provide a hair dryer capable of efficiently performing hair deformation by hot air, hair drying, hair fixation by cold air and prevention of overdrying.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the hair dryer according to the present invention forms an outer flow channel 3 that is adjacent to the inner flow channel 2 and the inner flow channel 2 and surrounds the inner flow channel 2. The discharge part is constituted by a nozzle member 22 having a double cylindrical structure composed of an outer nozzle 23 and an inner nozzle 24, and has air blowing means for simultaneously discharging the air in both flow paths 2, 3 toward the hair. Of the paths 2 and 3, the heater 7 is provided only in the inner flow path 2, and the inner flow path 2 is used as a flow path through which hot air flows, and the outer flow path 3 is used as a flow path through which cold air flows. A boundary wall 4 that divides the inner flow path 2 and the outer flow path 3 is made of a synthetic resin cylindrical wall member 5 and a cylindrical heat insulating member 6 having heat insulation laminated on the inner surface of the wall member 5. It is characterized by comprising .
[0008]
The boundary wall 4 that partitions the flow path 2, 3 adjacent to such by a heat insulating structure, it is possible to cut off between the channel 2 and 3 adjacent thermally, thereby the respective flow paths 2 The flowing air is not thermally affected by the air flowing through the adjacent channels 2 and 3 and the temperature of the air flowing through each channel 2 and 3 can be set to an appropriate temperature. As a result, the hair is deformed by the hot air. It is possible to efficiently dry hair, fix hair with cold air, and prevent overdrying.
[0010]
Further, the boundary wall 4 is composed of a synthetic resin wall member 5 and a heat insulating member 6 laminated on the wall member 5, so that the heat insulating member 6 is attached to the wall member 5 made of an inexpensive synthetic resin which is easy to process. The boundary wall 4 having a heat insulating structure can be formed simply by laminating, and the cost of the hair dryer 1 can be reduced. In addition, since the heat insulating member 6 having higher heat resistance than the wall member 5 is disposed on the side of the one flow path 2 through which the air having higher temperature flows, the wall member 5 caused by high temperature air, the heat of the heater 7 or the like. Can prevent deformation and melting.
[0011]
The second aspect in claim 1, is characterized in that it has a space 28 between the wall member 5 and the heat insulating member 6.
[0012]
By forming the space 28 between the wall member 5 and the heat insulating member 6 in this way, the heat insulating property of the boundary wall 4 can be enhanced, and the adjacent flow paths 2 and 3 are further thermally blocked. Can do.
[0013]
A third aspect of the present invention is characterized in that, in the first or second aspect , the heat insulating member 6 is a mica sheet.
[0014]
According to a fourth aspect of the present invention , in the first or second aspect , the heat insulating member 6 is a glass fiber cloth.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
In the hair dryer of the present invention, a plurality of flow paths through which air of different temperatures flow are arranged in parallel, and adjacent flow paths are partitioned by a boundary wall. On the upstream side of the plurality of channels, outside air is sucked from outside air inlets that are open to the outside and sent to each channel, and the air flowing in each channel is simultaneously discharged from the discharge part of each channel toward the hair. Blowing means is provided.
[0016]
Hereinafter, an example of this embodiment will be described with reference to FIGS. The hair dryer 1 in the illustrated example has two channels, one channel 2 and the other channel 3 adjacent to the one channel 2, and the one channel 2 is viewed from the direction of air flow. It is surrounded by the other channel 3. One of the flow paths 2 disposed on the inner side is provided with a heater 7, and the other flow path 3 disposed on the outer side is not provided with a heater 7. The higher temperature air heated by the air flows, and the lower temperature air not heated by the heater 7 flows in the other flow path 3. As a result, the air flowing in both flow paths 2 and 3 flows. The temperature is different .
[0017]
FIG.1 and FIG.2 is sectional drawing which shows the specific structure of the hair dryer 1 of this example. As shown in the figure, the hair dryer 1 has a substantially cylindrical housing 10 having an outside air inlet 8 that opens rearward at the rear end and an opening 9 that opens forward at the front end. A handle portion 11 projects downward from the rear portion of the housing 10. In the figure, reference numeral 12 denotes a power supply cord.
[0018]
A cylindrical rectifying cylinder 13 having an upstream opening communicating with the outside air inlet 8 and having substantially the same inner diameter and outer diameter in the axial direction is provided at the rear of the housing 10. The rectifying cylinder 13 is provided with an axial flow type fan 14 such as a propeller fan as a blowing means. The fan 14 is rotationally driven by a motor 15 provided in the housing 10 and has a characteristic that air can easily flow uniformly on a concentric circle.
[0019]
A cylindrical wind tunnel portion 16 in which the inner diameter of the upstream end portion is larger than the outer diameter of the rectifying tube 13 is provided at the front portion inside the housing 10, that is, on the downstream side of the rectifying tube 13. Reference numeral 16 denotes an inner peripheral surface portion of the housing 10 located on the front side of the handle portion 11.
[0020]
Inside the wind tunnel portion 16 is provided a cylindrical inner tube 17 having a heater 7 whose upstream opening communicates with the downstream opening of the rectifying tube 13. The inner tube 17 and the above-described wind tunnel portion 16 include A double cylindrical structure is formed. The center line of the inner cylinder 17 is located on the center line of the wind tunnel 16 and on the extension line of the center line of the rectifying cylinder 13, and the outer diameter of the upstream end of the inner cylinder 17 is substantially the same as the inner diameter of the rectifying cylinder 13. The upstream end of the inner cylinder 17 and the downstream end of the rectifying cylinder 13 are separated in the axial direction, and the rectifying cylinder 13 is between the downstream end of the rectifying cylinder 13 and the upstream end of the inner cylinder 17. A gap S is formed to allow communication between the inside and the space portion 19 between the inner cylinder 17 and the wind tunnel portion 16. The gap S is adjusted in the axial direction, whereby the ratio of the amount of air flowing through the space 19 and the amount of air flowing through the inner cylinder 17 is adjusted. Further, as the gap S is formed, the inner peripheral surface portion of the housing 10 located outside the downstream end portion of the rectifying cylinder 13 is connected to the rectifying cylinder 13 and the outer housing 10 as shown in FIG. A closing member 21 is provided to close the space 20 between them, and the air flowing from the gap S is prevented from flowing into the space 20 so that the air can flow efficiently.
[0021]
A nozzle member 22 having a double cylindrical structure made of synthetic resin is provided at the downstream end of the wind tunnel portion 16. The nozzle member 22 includes an outer nozzle 23 and an inner nozzle 24 provided integrally with the outer nozzle 23 located inside the outer nozzle 23, and the center lines of the inner nozzle 24 and the outer nozzle 23 are the center of the inner cylinder 17. Located on the line extension. The opening on the upstream side of the outer nozzle 23 is connected to the opening on the downstream side (opening 9) of the wind tunnel portion 16. The opening on the upstream side of the inner nozzle 24 and the opening on the downstream side of the inner cylinder 17 are connected to the heater 7. In order to prevent the inner nozzle 24 from being deformed or melted by the higher temperature or the higher temperature air flowing through the inner cylinder 17, the inner nozzle 17 is slightly separated in the axial direction. The inside of the inner nozzle 24 communicates with the inside of the inner cylinder 17, and the space portion 25 between the outer nozzle 23 and the inner nozzle 24 communicates with the space portion 19.
[0022]
And in this example, while the said one flow path 2 is comprised with the inside of the inner cylinder 17 of the said hair dryer 1, and the inside of the inner nozzle 24 provided in the downstream of the inner cylinder 17, the said space part 19 and the space part 25 are the said. The other flow path 3 is configured, the inner cylinder 17 is a boundary wall 4 that partitions the one flow path 2 and the other flow path 3, and the inner nozzle 24 is an air discharge section that flows through the one flow path 2. In addition, the outer nozzle 23 is used as a discharge unit for air flowing through the other flow path 3.
[0023]
The inner cylinder 17 as the boundary wall 4 will be described in detail. As shown in FIG. 1, the inner cylinder 17 includes the adjacent flow paths 2 and 3, the other flow path 3 side (that is, the lower temperature air flows). The wall member 5 made of synthetic resin having heat resistance disposed on the flow channel side) and the heat insulation and heat resistance disposed on one flow channel 2 side (that is, the flow channel side on which the higher temperature air flows). It is comprised with the heat insulation member 6 which has. The heat insulating member 6 is laminated on the surface of the wall member 5, and a mica sheet is used as the heat insulating member 6 having a low thermal conductivity in this example. It is to be noted that a glass fiber cloth may be used as the heat insulating member 6, and various conventionally known heat insulating members may be used as the heat insulating member 6.
[0024]
The wall member 5 of the boundary wall 4 (inner cylinder 17) is mainly composed of a cylindrical main body portion 26, and a protrusion 27 protruding toward the center of the main body portion 26 is formed on the inner peripheral surface of the main body portion 26. A plurality are provided in the circumferential direction. The protrusions 27 are arranged at equal intervals in the circumferential direction, and a cylindrical heat insulating member 6 concentric with the wall member 5 is laminated on the front end surfaces of the plurality of protrusions 27 . Thereby, the heat insulating member 6 and the main body portion 26 of the wall member 5 are separated from each other in the radial direction, and a plurality of heat insulating spaces 28 are formed between the wall member 5 and the heat insulating member 6. In this example, an example in which the space 28 for heat insulation is formed between the heat insulating member 6 and the wall member 5 is shown, but the space 28 is not formed and the inner peripheral surface of the main body portion 26 of the wall member 5 is formed. The heat insulating member 6 may be directly laminated.
[0025]
Thus, the boundary wall 4 is composed of the synthetic resin wall member 5 and the heat insulating member 6 laminated on the wall member 5, so that the heat insulating member 6 is attached to the wall member 5 made of synthetic resin which is easy to process and inexpensive. The boundary wall 4 having a heat insulating structure can be formed simply by laminating, the cost of the hair dryer 1 can be reduced, and in this example, the heat insulating member 6 having higher heat resistance than the wall member 5 has a higher temperature. Therefore, the wall member 5 can be prevented from being deformed or melted by high-temperature air, the heat of the heater 7 or the like.
[0026]
Next, the case where the higher temperature air and the lower temperature air are simultaneously discharged from the discharge portions of the flow paths 2 and 3 by the blowing means will be described. In this case, the user operates the operation unit including various operation switches such as the power switch 29 and the mode change switch 30 provided on the handle unit 11 shown in FIG. By operating the operation unit, a control unit (not shown) turns on the heater 7 and turns on the motor 15. When the fan 14 is rotated by driving the motor 15, the outside air outside the housing 10 is sucked into the rectifying cylinder 13 from the outside air suction port 8, and the air sucked into the rectifying cylinder 13 is transferred to the one flow path 2 and the other flow path 3. The air heated by the heater 7 is discharged from one of the flow paths 2 from the discharge portion of the one flow path 2, and the other flow path 3 is not heated by the heater 7 at the same time. It discharges from 3 discharge parts.
[0027]
Thus, warm air that is air discharged from the discharge portion of one flow path 2 and cold air that is discharged simultaneously with the hot air that is air discharged from the discharge section of the other flow path 3 are applied to the hair. First, hot air is applied to a desired part of the hair to deform or dry the hair, and then the hair dryer 1 is moved (or changed direction) to the portion of the hair that has been exposed to the hot air. Cold air is applied to fix the hair and prevent overdrying, and then the hair dryer 1 is moved to repeat the above operation.
[0028]
Here, as described above, the boundary wall 4 separating the one flow path 2 and the other flow path 3 through which air having different temperatures flows has a heat insulating structure, so that the flow paths 2 and 3 can be thermally blocked. As in the prior art, the lower temperature air flowing through the other flow path 3 via the boundary wall 4 is heated by the heat of the higher temperature air flowing through the one flow path 2 , Therefore, it is possible to prevent the air having the higher temperature flowing through the flow path 2 from being cooled by the heat of the air having the lower temperature flowing through the other flow path 3. It can be applied to the hair, and the hair can be deformed and dried by warm air, and the hair can be fixed and prevented from being overdried by cold air. Further, a space 28 for heat insulation was formed between the wall member 5 and the heat insulating member 6, and the boundary wall 4 was constituted by the wall member 5 and the heat insulating member 6 laminated on the wall member 5 to form a double structure. In addition, the use of the wall member 5 having high heat resistance can further thermally block the gaps 2 and 3 between the two flow paths.
[0029]
Further, as shown in FIG. 2, the hair dryer 1 of the present example includes an ion release portion 31 that discharges negative ions in the same direction as the discharge direction of air discharged from the discharge portions of the flow paths 2 and 3. The ion emission unit 31 includes an ion channel 33 and an ion generation unit 34 that generates negative ions provided in the middle of the ion channel 33. The upstream end of the ion channel 33 is connected to the middle of the other channel 3, and the downstream end of the ion channel 33 is discharged from the discharge portions of the channels 2 and 3. An ion emission port 32 that opens in substantially the same direction as the air discharge direction is provided. The ion emission port 32 is disposed in the vicinity of the discharge portion of each of the flow paths 2 and 3, and specifically, is located near and outside the discharge portion of the other flow path 3 when viewed from the air flow direction. The inner cylinder 17 includes a high voltage generator 35 that applies a high voltage to the ion generator 34.
[0030]
By operating the operation unit, the ion emission unit 31 generates negative ions in the negative ion generation unit 34 and discharges the negative ions to the ion channel when the cold air and the hot air are discharged simultaneously. It is discharged toward the hair from the ion emission port 32 by being put on the flow of air having a lower temperature flowing through 33. By applying negative ions released from the ion release part 7 to the hair, the hair can be glossy. Moreover, the negative ions are not applied to the overdried hair, but are crisp due to the effect of cold air. Since it is applied to the hair that has disappeared, the polishing effect by negative ions is further improved. Here, the negative ions are released by being put on the air flow having a lower temperature, so that the negative ions are not easily heated by the air having a higher temperature and are not evaporated, thereby further improving the polishing effect. The ion emission part 31 is not limited to this. For example, the upstream end of the ion flow path 33 is not communicated with the other flow path 3, and negative ions generated in the ion generation part 34 are made to the other side. May be attracted by cold air blown out from one of the flow paths 3, or an ion generation part is provided in one flow path 2 or the other flow path 3 to flow through one flow path 2 or the other flow path 3. You may make it discharge | emit a negative ion from the discharge part of one flow path 2, or the discharge part of the other flow path 3 with air.
[0031]
In the above embodiment, the temperature of the air flowing in the plurality of flow paths 2 and 3 is varied depending on whether or not the heater 7 is provided in each flow path, but a heater is provided in each of the flow paths 2 and 3. The temperature of the air flowing through the plurality of flow paths 2 and 3 may be varied by switching ON / OFF of each heater 7 or by changing the output of the heater 7. In addition, the hair dryer 1 only needs to have a mode for discharging the cold air and the hot air at the same time, but in addition to this, a mode for releasing negative ions in addition to the cold air and the hot air described above, In addition, other modes may be provided that automatically switch ON / OFF of the heater 7, ON / OFF of the motor 15, and ON / OFF of the ion generation unit 34 to preset values.
[0032]
【The invention's effect】
As described above, the hair dryer according to the present invention thermally shuts off the adjacent flow paths so that the temperature of the air flowing through each flow path can be set to an appropriate temperature. It is possible to efficiently fix the hair and prevent overdrying.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a hair dryer showing an example of an embodiment of the present invention.
FIG. 2 is a plan sectional view of the same.
3 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hair dryer 2 One flow path 3 The other flow path 4 Boundary wall 5 Wall member 6 Thermal insulation member

Claims

An inner channel and an outer channel surrounding the inner channel are formed adjacent to the inner channel, and the discharge part of both channels is formed by a nozzle member having a double cylindrical structure including an outer nozzle and an inner nozzle. And having air blowing means for simultaneously discharging the air in both flow paths toward the hair, and providing a heater only in the inner flow path of both flow paths, The outer flow path and the outer flow path are flow paths through which the cold air flows, and the boundary wall that divides the inner flow path and the outer flow path is made of a synthetic resin cylindrical wall member and the inner surface of the wall member. A hair dryer comprising: a laminated cylindrical heat insulating member having heat insulating properties.

The hair dryer according to claim 1, wherein a space is formed between the wall member and the heat insulating member.

The hair dryer according to claim 1 or 2, wherein the heat insulating member is a mica sheet.

The hair dryer according to claim 1 or 2, wherein the heat insulating member is a glass fiber cloth.