JP2003093137A - Hair dryer - Google Patents
Hair dryerInfo
- Publication number
- JP2003093137A JP2003093137A JP2001291754A JP2001291754A JP2003093137A JP 2003093137 A JP2003093137 A JP 2003093137A JP 2001291754 A JP2001291754 A JP 2001291754A JP 2001291754 A JP2001291754 A JP 2001291754A JP 2003093137 A JP2003093137 A JP 2003093137A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- blade
- central axis
- upstream
- hair dryer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Cleaning And Drying Hair (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、温風を吐出して毛
髪の乾燥やセットを行うことができるヘアードライヤー
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dryer capable of discharging hot air to dry or set hair.
【０００２】[0002]
【従来の技術】従来より、温風を吐出して毛髪の乾燥や
セットを行うヘアードライヤーが使用されている。この
ヘアードライヤーは、略筒状をした細長いケーシングの
内部に空気流路を形成して、ケーシングの上流側端部に
吸込口を設けると共に下流側端部に吹出口を設けてあ
り、ケーシング内に形成された空気流路にはファン，モ
ータ，ヒータが配設してある。2. Description of the Related Art Hair dryers for drying and setting hair by ejecting warm air have been conventionally used. In this hair dryer, an air flow path is formed inside a substantially cylindrical elongated casing, and an inlet is provided at an upstream end of the casing and an outlet is provided at a downstream end of the casing. A fan, a motor and a heater are arranged in the formed air flow path.
【０００３】このようなヘアードライヤーは、電源スイ
ッチを入れてモータ，ヒータに通電し、吸込口より吸い
込んだ空気をファンにて空気流路の下流側に送風し、ヒ
ータにて加温した空気を吹き出して毛髪の乾燥やセット
を行うものであるが、ファンの回転騒音を低減するた
め、略筒状をした細長いケーシング内でという制限のも
とで、ファンの羽根の前縁を回転方向や半径方向外側に
突出した形状とするものである。これは、図７に示すよ
うに、ファン３’のハブ部５の側面に複数設けらられる
羽根６’は、その前縁６１’（即ち上流側ｕの縁）の突
出基部６１ｂ’を通ってハブ部５’の中心軸ｓに垂直な
平面に対して、前縁６１’の先端部６１ａ’が上流側ｕ
に位置して前縁６１’が上流側に突出するように取り付
けたり、あるいは、図８に示すように、正面視におい
て、ファン３”の羽根６”の前縁６１”の先端部６１
ａ”が突出基部６１ｂ”よりも回転方向ロ側にずれて位
置するように前縁６１”を傾斜させるものである。な
お、図７中のｌは下流側を、図８中のｒ”は、正面視に
おいて突出基部６１ｂ”を通るファン３”の半径方向の
線を示す。このようにすることで、ファンの回転騒音を
低減させることができる。In such a hair dryer, the power switch is turned on to energize the motor and the heater, and the air sucked from the suction port is blown to the downstream side of the air flow path by the fan to heat the air heated by the heater. It blows air to dry and set the hair, but in order to reduce the noise of the fan rotation, the front edge of the fan blades is set in the direction of rotation and radius under the limitation of being in a long and thin casing with a substantially cylindrical shape. It has a shape protruding outward in the direction. This is because, as shown in FIG. 7, a plurality of blades 6'provided on the side surface of the hub portion 5 of the fan 3'pass through the protruding base portion 61b 'of the front edge 61' (that is, the edge of the upstream side u). With respect to the plane perpendicular to the central axis s of the hub portion 5 ′, the front end portion 61a ′ of the front edge 61 ′ is located on the upstream side u.
The front edge 61 ′ of the blade 6 ″ of the fan 3 ″ when viewed from the front as shown in FIG.
The front edge 61 "is inclined so that the a" is displaced to the rotational direction "b" side with respect to the protruding base portion 61b ". In addition, l in FIG. 7 indicates the downstream side and r" in FIG. Shows a radial line of the fan 3 "passing through the protruding base portion 61b" in a front view. By doing so, the rotation noise of the fan can be reduced.
【０００４】しかしながら、このようにファンの羽根の
前縁の先端部を回転方向や半径方向外側に突出するよう
にしたものにあっては、ヘアードライヤーの使用中に毛
髪が抜けてヘアードライヤーの吸込口より吸い込まれた
場合、この吸い込まれた毛髪が羽根に引っ掛かってモー
タの回転を停止してしまい、ヘアードライヤーを損傷し
てしまうものであった。However, in the fan blade of the fan whose front end is protruded outward in the direction of rotation or in the radial direction as described above, hair comes out during use of the hair dryer and suction of the hair dryer occurs. When sucked from the mouth, the sucked hair is caught by the blades and stops the rotation of the motor, damaging the hair dryer.
【０００５】[0005]
【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、ヘ
アードライヤーを使用している際に抜けた毛髪が吸込口
より吸い込まれても、毛髪がファンの羽根に引っ掛かか
り難く、ファンを停止させてファンやモータが損傷して
しまうのを抑えることができるヘアードライヤーを提供
することを課題とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to remove hair that has fallen off during use of a hair dryer from the suction port. Another object of the present invention is to provide a hair dryer in which hair is less likely to be caught by the blades of the fan, and the fan is stopped to prevent damage to the fan and the motor.
【０００６】[0006]
【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ードライヤーは、ケーシング１の内
部に空気流路２を形成して該空気流路２の上流側端部に
吸込口２１を設けると共に下流側端部に吹出口２２を設
け、空気流路２内にファン３と該ファン３を駆動するモ
ータ４１とを配置し、ファン３をモータ４１に連結され
るハブ部５と該ハブ部５より突設される複数の羽根６と
で構成したヘアードライヤーにおいて、ハブ部５の中心
軸ｓから羽根６の上流側端縁６１の前記中心軸ｓ側の端
部６１ｂに至る線で形成される仮想的な半径ｒに対して
羽根６の上流側端縁６１の前記中心軸ｓと反対側の端部
６１ａがファン３の回転方向ロと反対側にずれているこ
とを特徴とするものである。このような構成とすること
で、抜けた毛髪がファン３の羽根６に引っ掛かかり難く
することができて、ファン３を停止させてファン３やモ
ータ４１が損傷してしまうのを抑えることができる。In order to solve the above-mentioned problems, a hair dryer according to the present invention has an air passage 2 formed inside a casing 1 and a suction port at the upstream end of the air passage 2. 21 and an outlet 22 at the downstream end, the fan 3 and a motor 41 for driving the fan 3 are arranged in the air flow path 2, and the fan 3 is connected to the hub portion 5 connected to the motor 41. In a hair dryer composed of a plurality of blades 6 protruding from the hub portion 5, a line extending from the central axis s of the hub portion 5 to an end portion 61b of the upstream end edge 61 of the blade 6 on the central axis s side. The end portion 61a of the upstream end edge 61 of the blade 6 on the opposite side of the central axis s with respect to the virtual radius r formed by is displaced to the side opposite to the rotation direction b of the fan 3. To do. With such a configuration, it is possible to prevent the hair that has come off from being caught on the blades 6 of the fan 3, and to prevent the fan 3 from stopping and damaging the fan 3 and the motor 41. it can.
【０００７】また、羽根６の上流側端縁６１のハブ部５
の中心軸ｓ側の端部６１ｂを通って前記中心軸ｓに垂直
な平面Ｐ1に対して、羽根６の上流側端縁６１の前記中
心軸ｓ側の端部６１ｂから前記中心軸ｓと反対側の端部
６１ａに至る線分Ｌ1が上流側ｕに１０度以内の角度を
なすことが好ましい。このような構成とすることで、抜
けた毛髪がファン３の羽根６に引っ掛かかり難くするこ
とができて、ファン３を停止させてファン３やモータ４
１が損傷してしまうのを抑えることができる。Further, the hub portion 5 of the upstream end edge 61 of the blade 6
From the end 61b on the central axis s side of the upstream end edge 61 of the blade 6 to the central axis s with respect to the plane P 1 perpendicular to the central axis s through the end 61b on the central axis s side. It is preferable that the line segment L 1 reaching the opposite end 61a forms an angle of 10 degrees or less with the upstream side u. With such a configuration, it is possible to prevent the hair that has come off from being caught by the blades 6 of the fan 3, and to stop the fan 3 to stop the fan 3 and the motor 4.
It can suppress that 1 is damaged.
【０００８】また、羽根６の上流側端縁６１のハブ部５
の中心軸ｓ側の端部６１ｂを通って前記中心軸ｓに垂直
な平面Ｐ1に対して、羽根６の上流側端縁６１の前記中
心軸ｓ側の端部６１ｂから前記中心軸ｓと反対側の端部
６１ａに至る線分Ｌ1が含まれるか若しくは前記線分Ｌ1
が下流側ｌに傾き、且つ、前縁６１が側面視において上
流側ｕに凸となるかあるいは正面視において回転方向ロ
側に凸となる形状をしていることが好ましい。このよう
な構成とすることで、抜けた毛髪がファン３の羽根６に
引っ掛かかり難くすることができて、ファン３を停止さ
せてファン３やモータ４１が損傷してしまうのを抑える
ことができる。Further, the hub portion 5 of the upstream edge 61 of the blade 6
From the end 61b on the central axis s side of the upstream end edge 61 of the blade 6 to the central axis s with respect to the plane P 1 perpendicular to the central axis s through the end 61b on the central axis s side. The line segment L 1 reaching the opposite end 61a is included or the line segment L 1
Is inclined toward the downstream side 1 and the front edge 61 is convex toward the upstream side u in the side view or convex toward the rotation direction B side in the front view. With such a configuration, it is possible to prevent the hair that has come off from being caught on the blades 6 of the fan 3, and to prevent the fan 3 from stopping and damaging the fan 3 and the motor 41. it can.
【０００９】また、ハブ部５の中心軸ｓに垂直な平面Ｐ
0に対して、羽根６の上流側端縁６１の前記中心軸ｓ側
の端部６１ｂと下流側端縁６３の前記中心軸ｓ側の端部
６３ａに至る線分Ｌ2がなす角度が４５度以上であるこ
とが好ましい。このような構成とすることで、ファン３
の回転数や羽根６の枚数及び面積等をそのままにして風
量を増大させることができるうえに、前記平面Ｐ0と線
分Ｌ2がなす角度の増大に伴って羽根の前縁が流れ方向
角度に突出するのを抑えることができる。A plane P perpendicular to the central axis s of the hub portion 5
With respect to 0 , the angle formed by the line segment L 2 from the end 61b of the upstream end edge 61 of the blade 6 on the central axis s side to the end 63a of the downstream end edge 63 on the central axis s side is 45. It is preferably at least a degree. With such a configuration, the fan 3
The amount of air flow can be increased by keeping the number of rotations of the blades, the number of blades 6 and the area thereof as they are, and the leading edge of the blades increases in flow direction angle as the angle formed by the plane P 0 and the line segment L 2 increases. It is possible to suppress the protrusion.
【００１０】また、ハブ部５を上流側ｕほど小径な斜流
型形状に形成することが好ましい。このような構成とす
ることで、上流側ｕより流れてきた抜けた毛髪がファン
３の羽根６に引っ掛かり易い上流側ｕほど小径な斜流型
形状のハブ部５を有するファン３においても抜けた毛髪
がファンの羽根に引っ掛かかり難くすることができる。Further, it is preferable that the hub portion 5 is formed in a diagonal flow shape whose diameter is smaller toward the upstream side u. With such a configuration, the removed hair that has flowed from the upstream side u is easily caught in the blades 6 of the fan 3, and is removed even in the fan 3 having the diagonal flow-shaped hub portion 5 having a smaller diameter on the upstream side u. Hair can be made less likely to get caught in the fan blades.
【００１１】[0011]
【発明の実施の形態】以下、本発明を添付図面に示す実
施形態に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.
【００１２】本実施形態におけるヘアードライヤーは、
図４に示すように、機器が収納されるケーシング１にて
本体部が形成される。The hair dryer of this embodiment is
As shown in FIG. 4, the casing 1 in which the equipment is housed forms a main body.
【００１３】ケーシング１は、上流側ケーシング部１１
と、下流側ケーシング部１２と、上流側ケーシング部１
１と下流側ケーシング部１２とを連結する連結部１３と
からなる。上流側ケーシング部１１は細長い略有底筒状
をしたもので、下流側ケーシング部１２は細長く上流側
ケーシング部１１より大径の大略有底筒状をしたもの
で、これらは開口側端部同士が連結部１３を介して連結
される。連結部１３は、円錐台の側面状に形成されるも
ので、小径側が上流側ケーシング部１１に接続されると
共に大径側が下流側ケーシング部１２に接続される。The casing 1 has an upstream casing portion 11
And the downstream casing part 12 and the upstream casing part 1
1 and a downstream side casing part 12 are connected to each other. The upstream casing 11 has a long and thin bottomed tubular shape, and the downstream casing 12 has a long and slender and generally larger bottomed tubular shape with a diameter larger than that of the upstream casing 11. Are connected via the connecting portion 13. The connecting portion 13 is formed in a side surface of a truncated cone, and has a small diameter side connected to the upstream casing portion 11 and a large diameter side connected to the downstream casing portion 12.
【００１４】このようなケーシング１の内部には空気流
路２が形成され、空気流路２の上流側端部（即ち上流側
ケーシング部１１の連結部１３と反対側の端部）と下流
側端部（即ち下流側ケーシング部１２の連結部１３と反
対側の端部）とにはそれぞれ、空気をケーシング１内に
吸い込む吸込口２１とケーシング１外へ吹き出す吹出口
２２とが形成される。An air passage 2 is formed inside such a casing 1, and the upstream end of the air passage 2 (that is, the end of the upstream casing 11 opposite to the connecting portion 13) and the downstream end are formed. An inlet 21 for sucking air into the casing 1 and an outlet 22 for blowing air out of the casing 1 are formed at the end (that is, the end of the downstream casing 12 opposite to the connecting portion 13).
【００１５】ケーシング１の内部に形成される空気流路
２には、空気を上流側から下流側へと送るためのファン
３と、ファン３を駆動するためのモータ４１と、モータ
４１を保持すると共に空気の流れを整流する整流翼４２
と、空気を加温するためのヒータ部４３とが配設され
る。ファン３は連結部１３内に、モータ４１と整流翼４
２とヒータ部４３は下流側ケーシング部１２内にそれぞ
れ配設され、ヘアードライヤー使用時に把持部となる上
流側ケーシング部１１には、モータ４１やヒータ部４３
への通電の入り切りを行うスイッチ部４５が設けてあ
る。An air passage 2 formed inside the casing 1 holds a fan 3 for sending air from the upstream side to the downstream side, a motor 41 for driving the fan 3, and a motor 41. Rectifying blade 42 for rectifying the flow of air together with
And a heater section 43 for heating the air. The fan 3 has a motor 41 and a rectifying blade 4 in the connecting portion 13.
2 and the heater part 43 are respectively arranged in the downstream side casing part 12, and the motor 41 and the heater part 43 are provided in the upstream side casing part 11 which serves as a holding part when the hair dryer is used.
There is provided a switch unit 45 for turning on and off electricity to and from.
【００１６】また、下流側ケーシング部１２に形成した
吹出口２２の外面側には、ブラシ部４４が設けてあり、
吹出口２２より吹き出される温風によって毛髪を乾燥さ
せるだけでなく、整髪も同時に行うことができるもので
ある。A brush portion 44 is provided on the outer surface side of the outlet 22 formed in the downstream casing portion 12,
Not only can the hair be dried by the warm air blown out from the air outlet 22, but also the hair can be adjusted at the same time.
【００１７】このようなヘアードライヤーを使用するに
は、下流側ケーシング部１２を掴んでスイッチ部４５を
入り状態にし、モータ４１を駆動してファン３を回転さ
せると共にヒータ部４３にて空気を加温して、吸込口２
１より吸い込んだ空気を加温して吹出口２２より吹き出
して毛髪に吹き付けて毛髪の乾燥や整髪を行うものであ
る。To use such a hair dryer, the downstream casing portion 12 is grasped and the switch portion 45 is turned on, the motor 41 is driven to rotate the fan 3, and the heater portion 43 applies air. Warm up the suction port 2
The air sucked from 1 is heated, blown out from the blowout port 22 and blown onto the hair to dry and condition the hair.
【００１８】ところで、このようなヘアードライヤーに
あっては、使用時において、乾燥や整髪によって抜けた
毛髪が吸込口２１より空気流路２内に侵入し、回転する
ファン３の羽根６に引っ掛かってファン３の回転を停止
させ、ファン３やモータ４１に損傷を与え兼ねないもの
であるため、本発明において、ヘアードライヤーの使用
時に抜けた毛髪が吸込口２１より侵入しても、毛髪が羽
根６に引っ掛かり難くなるように羽根６をハブ部５に取
付けてファン３を構成するものであり、以下に説明す
る。By the way, in such a hair dryer, during use, hair that has fallen out due to drying or styling enters the air passage 2 through the suction port 21 and is caught by the blades 6 of the rotating fan 3. Since the rotation of the fan 3 may be stopped and the fan 3 and the motor 41 may be damaged, in the present invention, even if the hair that has fallen out during use of the hair dryer enters through the suction port 21, the hair 6 The fan 6 is attached to the hub portion 5 so that the fan 3 is not easily caught by the fan 3, and will be described below.
【００１９】ファン３は、図１乃至図３に示すように、
回転の中心部に位置するハブ部５と、ハブ部５より突設
される羽根６とで構成される。The fan 3 is, as shown in FIGS. 1 to 3,
The hub 5 is located at the center of rotation, and the blades 6 project from the hub 5.
【００２０】ハブ部５は、上流側ｕほど小径な斜流型形
状に形成するもので、本実施形態では円錐側面状をした
側面部５１と軸連結部（特に図示せず）とからなる合成
樹脂等で形成されるものである。円錐側面状をした側面
部５１の中心軸ｓに沿ってこの側面部５１より筒状部材
のような軸連結部を設け、軸連結部にモータ４１の回転
軸（特に図示せず）を嵌入したりして連結し、モータ４
１の回転軸を回転させてファン３を回転させるものであ
る。このハブ部５は、側面部５１の小径側が上流側ｕ，
大径側が下流側ｌとなるように側面部５１の中心軸ｓが
空気流れ方向ｘと平行になるように配置される。そし
て、このハブ部５の側面部５１には、空気を送る羽根６
が突設される。The hub portion 5 is formed in a diagonal flow shape having a smaller diameter toward the upstream side u. In this embodiment, the hub portion 5 is composed of a conical side surface portion 51 and a shaft connecting portion (not particularly shown). It is formed of resin or the like. A shaft connecting portion such as a tubular member is provided from the side surface portion 51 along the central axis s of the side surface portion 51 having a conical side surface shape, and a rotary shaft (not shown) of the motor 41 is fitted into the shaft connecting portion. Motor 4
The fan 3 is rotated by rotating the rotating shaft 1 of FIG. In this hub portion 5, the smaller diameter side of the side surface portion 51 is the upstream side u,
The central axis s of the side surface portion 51 is arranged to be parallel to the air flow direction x such that the large diameter side is the downstream side 1. Then, on the side surface portion 51 of the hub portion 5, blades 6 for sending air are provided.
Is projected.
【００２１】羽根６は、大略長方形状をした板状のもの
で、ハブ部５の側面部５１より外側に向けて複数枚が突
設される。なお、この複数枚の羽根６はハブ部５の側面
部５１に均等に配置されて、ファン３が中心軸ｓ廻りに
対称な形状となるように取付けられるものである。The blade 6 is a plate having a substantially rectangular shape, and a plurality of blades are provided so as to project outward from the side surface portion 51 of the hub portion 5. The plurality of blades 6 are evenly arranged on the side surface portion 51 of the hub portion 5, and the fan 3 is attached so as to have a symmetrical shape around the central axis s.
【００２２】ハブ部５の側面部５１に取付けられた大略
長方形状の羽根６の周端縁は、上流側ｕの端縁である前
縁６１と、ハブ部５の半径方向イの外側の端縁である外
縁６２と、下流側ｌの端縁である後縁６３とで形成され
る。The peripheral edge of the blade 6 having a substantially rectangular shape attached to the side surface portion 51 of the hub portion 5 has a front edge 61 which is an edge on the upstream side u and an outer edge of the hub portion 5 in the radial direction a. It is formed of an outer edge 62 which is an edge and a trailing edge 63 which is an edge of the downstream side l.
【００２３】羽根６は、ハブ部５とともに回転して空気
を上流側ｕより下流側ｌへと送るため、図２に示すよう
に、側面視において、即ちハブ部５の中心軸ｓと直交す
る方向（半径方向イ）から見て、空気流れ方向ｘの上流
側ｕ（即ち前縁６１側）ほどハブ部５の回転方向ロ側
に、下流側ｌ（即ち後縁６３側）ほどハブ部５の回転方
向ロと反対側に傾斜するように取付けられる。そしてこ
の時、羽根６の前縁６１と後縁６３とを結んだ線、即
ち、前縁６１の半径方向イ内側の端部（以下、前縁の内
側端部６１ｂという）と後縁６３の半径方向イ内側の端
部６３ｂとを結んだ線分Ｌ2と回転方向ロとが為す角度
を羽根の取付角度θとし、本実施形態では取付角度θを
５０度程度としてある。一般的に、ファン３の回転数や
羽根６の枚数及び面積等をそのままにして風量を増大さ
せる場合、この取付角度θを４５度以上にして風量増大
を達成するものである。Since the blades 6 rotate together with the hub portion 5 to send air from the upstream side u to the downstream side l, as shown in FIG. 2, in a side view, that is, orthogonal to the central axis s of the hub portion 5. When viewed from the direction (radial direction a), the upstream side u (that is, the front edge 61 side) in the air flow direction x is closer to the rotation direction b of the hub portion 5, and the downstream side 1 (that is, the rear edge 63 side) is the hub portion 5. It is attached so as to incline on the opposite side of the rotation direction of. Then, at this time, a line connecting the front edge 61 and the rear edge 63 of the blade 6, that is, the inner edge of the front edge 61 in the radial direction (hereinafter referred to as the inner edge 61b of the front edge) and the rear edge 63 is formed. The angle formed by the line segment L 2 connecting the inner end 63b in the radial direction and the rotation direction b is the blade mounting angle θ, and in this embodiment, the mounting angle θ is about 50 degrees. In general, when the air volume is increased while keeping the number of rotations of the fan 3 and the number and area of the blades 6 as they are, the attachment angle θ is set to 45 degrees or more to achieve the air volume increase.
【００２４】また羽根６は、図２に示すように、上述し
た側面視において、羽根６の前縁６１の内側端部６１ｂ
を通って中心軸ｓに垂直な平面Ｐ1に対して、羽根６の
前縁６１（即ち前縁６１の内側端部６１ｂから外側端部
６１ａに至る線Ｌ1）が上流側ｕに１０度以内の角度を
もって（即ち後述する流れ方向角度αが８０度以上とな
るように）傾斜するか、あるいは、下流側ｌに（即ち後
述する流れ方向角度αが９０度以上となるように）傾斜
するように取付けられる。As shown in FIG. 2, the blade 6 has an inner end portion 61b of the front edge 61 of the blade 6 in the side view described above.
The front edge 61 of the blade 6 (that is, the line L 1 extending from the inner end portion 61b to the outer end portion 61a of the front edge 61) of the blade 6 with respect to the plane P 1 which is perpendicular to the central axis s passes through the upstream side u by 10 degrees. Inclination with an angle within the range (that is, so that the flow direction angle α described later is 80 degrees or more) or inclination toward the downstream side 1 (that is, so that the flow direction angle α described later is 90 degrees or more) Mounted as.
【００２５】また更に羽根６は、図１に示すように、正
面視において、即ちハブ部５の中心軸ｓ方向から見て、
羽根６の前縁６１が回転方向ロと反対側に傾斜するよう
に取付けられる。更に詳述すると、正面視において、中
心軸ｓと羽根６の前縁６１の内側端部６１ｂとを結んで
形成される半径方向の線ｒに対して、羽根６の前縁６１
（即ち前縁６１の内側端部６１ｂから外側端部６１ａに
至る線Ｌ1）が回転方向ロと反対側に（即ち後述する回
転方向角度βが０度未満となるように）傾斜して、前縁
６１の外側端部６１ａが回転方向イと反対側にずれるよ
うに取付けられる。このように、羽根６の前縁６１が回
転方向ロに突出しないようにすることで、後述するが、
毛髪が回転するファン３の羽根６に引っ掛かり難くする
ことができる。Furthermore, as shown in FIG. 1, the blade 6 is seen from the front, that is, when viewed from the direction of the central axis s of the hub portion 5.
The front edge 61 of the blade 6 is attached so as to incline to the side opposite to the rotation direction B. More specifically, when viewed from the front, the front edge 61 of the blade 6 is different from the radial line r formed by connecting the central axis s and the inner end portion 61b of the front edge 61 of the blade 6.
(That is, the line L 1 from the inner end portion 61b to the outer end portion 61a of the front edge 61) is inclined to the side opposite to the rotation direction b (that is, the rotation direction angle β described below is less than 0 degree), The outer edge portion 61a of the front edge 61 is attached so as to be displaced to the side opposite to the rotational direction B. As described above, by preventing the front edge 61 of the blade 6 from projecting in the rotation direction B, as will be described later,
It is possible to make it difficult for the hair to be caught by the rotating blades 6 of the fan 3.
【００２６】以下に、羽根６をハブ部５に上述したよう
に取付ける理由について説明する。The reason why the blade 6 is attached to the hub portion 5 as described above will be described below.
【００２７】まず、図２に示すように、側面視におい
て、羽根６の前縁６１の内側端部６１ｂを通って中心軸
ｓに垂直な平面Ｐ1に対して、羽根６の前縁６１が上流
側ｕに１０度以内の角度を為すように傾斜するか、ある
いは、下流側ｌに傾斜するように羽根６をハブ部５に取
付ける理由について説明する。これは、当方で実施した
「羽根の前縁の流れ方向に対する角度と毛髪の引っ掛か
り易さとの相関関係を調べる試験」（以下、試験１とい
う）の試験結果を根拠とするものでる。First, as shown in FIG. 2, in a side view, the front edge 61 of the blade 6 is positioned with respect to a plane P 1 which passes through the inner end portion 61b of the front edge 61 of the blade 6 and is perpendicular to the central axis s. The reason why the blade 6 is attached to the hub portion 5 so as to incline the upstream side u so as to form an angle of 10 degrees or incline to the downstream side 1 will be described. This is based on the test results of "a test for examining the correlation between the angle of the leading edge of the blade with respect to the flow direction and the easiness of catching hair" (hereinafter referred to as test 1) performed by us.
【００２８】試験１は、羽根６の前縁６１が流れ方向ｘ
に傾斜する度合いの異なる複数種類のファン３を用いて
行うもので、ファン３をヘアードライヤーに組み込んで
一定数量の毛髪を吸込口２１より吸い込ませ、ファン３
に引っ掛かった毛髪の本数を調べたものである。ここ
で、前記「羽根６の前縁６１が流れ方向ｘに傾斜する度
合い」は、側面視において、中心軸ｓの上流側ｕに対し
て、羽根６の前縁６１（即ち前縁６１の内側端部６１ｂ
から外側端部６１ａに至る線Ｌ1）が為す角度である
「流れ方向角度α」を用いて表すものとする。試験１で
用いる複数種類のファン３は、羽根６の前縁６１の流れ
方向角度αのみが異なるもので、ハブ部５，羽根６の枚
数，羽根６の取付角度θといった他の条件はほぼ同一と
してあり、流れ方向角度αがそれぞれ、４０度，６０
度，７０度，９０度，１１０度の５種類のファン３にて
試験を行ったもので、この試験１の結果を図５に示す。
なお、図５の横軸は流れ方向角度αを、縦軸は吸込口２
１より吸い込んだ毛髪のうち引っ掛かった毛髪の数量を
表す。In test 1, the leading edge 61 of the blade 6 is in the flow direction x.
This is performed by using a plurality of types of fans 3 having different degrees of inclination, and the fan 3 is incorporated into a hair dryer to suck a fixed amount of hair through the suction port 21.
This is the number of hairs caught on. Here, the “degree of inclination of the front edge 61 of the blade 6 in the flow direction x” means the front edge 61 of the blade 6 (that is, the inside of the front edge 61) with respect to the upstream side u of the central axis s in a side view. End 61b
It is expressed by using the "flow direction angle α" which is the angle formed by the line L 1 ) from the outer end portion 61a to the outer end portion 61a. The plurality of types of fans 3 used in the test 1 differ only in the flow direction angle α of the front edge 61 of the blade 6, and other conditions such as the hub portion 5, the number of blades 6 and the mounting angle θ of the blade 6 are almost the same. And the flow direction angle α is 40 degrees and 60 degrees, respectively.
Tests were conducted using five types of fans 3 of 70 degrees, 70 degrees, 90 degrees, and 110 degrees, and the results of this test 1 are shown in FIG.
The horizontal axis in FIG. 5 represents the flow direction angle α, and the vertical axis represents the suction port 2
From 1 indicates the number of trapped hairs.
【００２９】この試験１の結果より、流れ方向角度αが
８０度以上では引っ掛かった毛髪の数量は少なく、特に
９０度になるとほぼ０になり、８０度未満では流れ方向
角度αが減少するに従って引っ掛かった毛髪の数量が急
激に増加するのが分かる。このため、流れ方向角度αは
８０度以上にするのが好ましい。From the results of this test 1, when the flow direction angle α is 80 degrees or more, the number of trapped hairs is small, particularly when the flow direction angle α is 90 degrees, it becomes almost 0, and when the flow direction angle α is less than 80 degrees, the hair is caught as the flow direction angle α decreases. It can be seen that the number of broken hair increases sharply. Therefore, the flow direction angle α is preferably set to 80 degrees or more.
【００３０】次に、正面視において、羽根６の前縁６１
が回転方向ロと反対側に傾斜するように羽根６をハブ部
５に取付ける理由について説明する。これは、当方で実
施した「羽根の前縁の回転方向に対する角度と毛髪の引
っ掛かり易さとの相関関係を調べる試験」（以下、試験
２という）の試験結果を根拠とするものである。Next, in front view, the front edge 61 of the blade 6 is
The reason why the blades 6 are attached to the hub portion 5 so that the blades tilt in the direction opposite to the rotation direction b will be described. This is based on the test results of the "test for examining the correlation between the angle of the leading edge of the blade with respect to the rotation direction and the easiness of catching hair" (hereinafter referred to as test 2) carried out by us.
【００３１】試験２は、羽根６の前縁６１が回転方向ロ
と反対側に傾斜する度合いの異なる複数種類のファン３
を用いて行うもので、ファン３をヘアードライヤーに組
み込んで一定数量の毛髪を吸込口２１より吸い込ませ、
ファン３に引っ掛かった毛髪の本数を調べたものであ
る。ここで、前記「羽根６の前縁６１が回転方向ロと反
対側に傾斜する度合い」は、正面視において、中心軸ｓ
と羽根６の前縁６１の内側端部６１ｂとを結んで形成さ
れる半径方向の線ｒに対して、羽根６の前縁６１（即ち
前縁６１の内側端部６１ｂから外側端部６１ａに至る
線）が回転方向ロに対して傾斜する角度である「回転方
向角度β」を用いて表すものとする。試験２で用いる複
数種類のファン３は、羽根６の前縁６１の回転方向角度
βのみが異なるもので、ハブ部４，羽根６の枚数，羽根
６の取付角度θといった他の条件はほぼ同一としてあ
り、回転方向角度βがそれぞれ、４０度，２０度，１０
度，０度，−２０度の５種類のファン３にて試験を行っ
たもので、この試験２の結果を図６に示す。なお、図の
横軸は回転方向角度βを、縦軸は吸込口２１より吸い込
んだ毛髪のうち引っ掛かった毛髪の数量を表す。In the test 2, a plurality of types of fans 3 having different degrees of inclination of the front edge 61 of the blade 6 in the direction opposite to the rotation direction (b) are used.
Incorporating the fan 3 into the hair dryer to suck a fixed amount of hair through the suction port 21,
The number of hairs caught by the fan 3 was examined. Here, the “degree of inclination of the front edge 61 of the blade 6 to the side opposite to the rotation direction B” is the central axis s in the front view.
With respect to a radial line r formed by connecting the inner edge 61b of the front edge 61 of the blade 6 to the outer edge 61a of the blade 6 (that is, from the inner edge 61b of the leading edge 61 to the outer edge 61a). It is represented by using the “rotation direction angle β”, which is the angle at which the line that extends reaches the rotation direction b. The plurality of types of fans 3 used in the test 2 differ only in the rotation direction angle β of the front edge 61 of the blade 6, and other conditions such as the hub portion 4, the number of blades 6 and the mounting angle θ of the blade 6 are almost the same. And the rotation direction angle β is 40 degrees, 20 degrees, and 10 degrees, respectively.
Tests were conducted using five types of fans 3 of 0, 0 and -20 degrees, and the results of this test 2 are shown in FIG. The horizontal axis of the figure represents the rotation direction angle β, and the vertical axis represents the number of trapped hairs sucked from the suction port 21.
【００３２】この試験２の結果より、回転方向角度βが
０度未満では引っ掛かった毛髪の数量は少なく、特に−
２０度になるとほぼ０になり、０度以上では回転方向角
度βが増大するに従って引っ掛かった毛髪の数量が急激
に増加するのが分かる。このため、回転方向角度βは０
度未満にするのが好ましい。From the results of this test 2, the number of hairs caught was small when the angle β of rotation was less than 0 °, and especially −
It can be seen that when the angle becomes 20 degrees, it becomes almost 0, and when the angle β in the rotation direction increases, the number of trapped hairs sharply increases as the rotation direction angle β increases. Therefore, the rotation direction angle β is 0.
It is preferably less than 10 degrees.
【００３３】以上のような構成とすることで、抜けた毛
髪がファン３の羽根６に引っ掛かかり難くすることがで
きて、ファン３を停止させてファン３やモータ４１が損
傷してしまうのを抑えることができる。With the above-mentioned structure, it is possible to prevent the hair that has come off from being caught by the blades 6 of the fan 3, and to stop the fan 3 and damage the fan 3 and the motor 41. Can be suppressed.
【００３４】また、羽根６の前縁６１は、図２に示すよ
うに側面視において、前縁６１が上流側ｕに凸となる形
状にしたり、あるいは、図３に示すように正面視におい
て、回転方向ロ側に凸となる形状にしてもよく、このよ
うにすることで、抜けた毛髪がより一層ファンの羽根に
引っ掛かかり難くすることができる。Further, the front edge 61 of the blade 6 has a shape in which the front edge 61 is convex toward the upstream side u in a side view as shown in FIG. 2, or in a front view as shown in FIG. A convex shape may be formed on the rotation direction (b) side, and by doing so, it is possible to make it more difficult for the fallen hair to be caught by the fan blades.
【００３５】また、本実施形態のように羽根６の取付角
度θを４５度以上の５０度程度とすることで、ファン３
の回転数や羽根６の枚数及び面積等をそのままにして風
量を増大させることができるうえに、取付角度θの増大
に伴って羽根６の前縁６１の流れ方向角度αが８０度未
満に小さくなって抜けた毛髪がファンの羽根に引っ掛か
かり易くなるのを抑えることができる。Further, by setting the mounting angle θ of the blade 6 to about 50 degrees, which is 45 degrees or more as in this embodiment, the fan 3
The air flow rate can be increased by keeping the number of rotations of the blades 6 and the number and area of the blades 6 as they are, and the flow direction angle α of the front edge 61 of the blades 6 is reduced to less than 80 degrees as the mounting angle θ is increased. It is possible to prevent the loosened hair from being easily caught on the fan blades.
【００３６】また、本実施形態のファン３のように、ハ
ブ部５の側面部５１が上流側ｕほど小径な斜流型形状を
したものにあっては、上流側ｕより流れてきた抜けた毛
髪がファン３の小径な上流側ｕに引っ掛かり易いのであ
るが、本実施形態のように流れ方向角度αを８０度以上
にしたり回転方向角度βを０度未満にしたりすることで
抜けた毛髪がファンの羽根に引っ掛かかり難くすること
ができる。Further, in the case where the side surface portion 51 of the hub portion 5 has a mixed flow shape in which the diameter is smaller toward the upstream side u like the fan 3 of the present embodiment, it escapes from the upstream side u. It is easy for the hair to get caught on the small-diameter upstream side u of the fan 3, but the hair that has come off by setting the flow direction angle α to 80 degrees or more and the rotation direction angle β to less than 0 degree as in the present embodiment. It is possible to make it difficult for the fan blades to be caught.
【００３７】[0037]
【発明の効果】上記のように本発明の請求項１記載の発
明にあっては、ケーシングの内部に空気流路を形成して
該空気流路の上流側端部に吸込口を設けると共に下流側
端部に吹出口を設け、空気流路内にファンと該ファンを
駆動するモータとを配置し、ファンをモータに連結され
るハブ部と該ハブ部より突設される複数の羽根とで構成
したヘアードライヤーにおいて、ハブ部の中心軸から羽
根の上流側端縁の前記中心軸側の端部に至る線で形成さ
れる仮想的な半径に対して羽根の上流側端縁の前記中心
軸と反対側の端部がファンの回転方向と反対側にずれて
いるので、抜けた毛髪がファンの羽根に引っ掛かかり難
くすることができて、ファンを停止させてファンやモー
タが損傷してしまうのを抑えることができる。As described above, according to the first aspect of the present invention, the air passage is formed inside the casing, and the suction port is provided at the upstream end of the air passage and the downstream portion is provided. An air outlet is provided at a side end, a fan and a motor for driving the fan are arranged in the air flow path, and the fan is composed of a hub portion connected to the motor and a plurality of blades protruding from the hub portion. In the configured hair dryer, the central axis of the upstream edge of the blade with respect to a virtual radius formed by a line extending from the central axis of the hub portion to the end of the upstream edge of the blade on the central axis side. Since the end on the opposite side of the fan is shifted to the opposite side of the fan rotation direction, it is possible to prevent the fallen hair from getting caught in the fan blades, stopping the fan and damaging the fan or motor. You can suppress it.
【００３８】また請求項２記載の発明にあっては、上記
請求項１記載の発明の効果に加えて、羽根の上流側端縁
のハブ部の中心軸側の端部を通って前記中心軸に垂直な
平面に対して、羽根の上流側端縁の前記中心軸側の端部
から前記中心軸と反対側の端部に至る線分が上流側に１
０度以内の角度をなすので、抜けた毛髪がファンの羽根
に引っ掛かかり難くすることができて、ファンを停止さ
せてファンやモータが損傷してしまうのを抑えることが
できる。In addition to the effect of the invention described in claim 1, in the invention described in claim 2, the central axis is passed through the end on the central axis side of the hub portion of the upstream end edge of the blade. With respect to a plane perpendicular to the plane, a line segment from the end on the central axis side of the upstream edge of the blade to the end on the opposite side to the central axis is 1 on the upstream side.
Since the angle is within 0 degree, it is possible to prevent the hair that has come off from being caught by the blades of the fan, and to stop the fan and prevent damage to the fan and the motor.
【００３９】また請求項３記載の発明にあっては、上記
請求項１又は請求項２記載の発明の効果に加えて、羽根
の上流側端縁のハブ部の中心軸側の端部を通って前記中
心軸に垂直な平面に対して、羽根の上流側端縁の前記中
心軸側の端部から前記中心軸と反対側の端部に至る線分
が含まれるか若しくは前記線分が下流側に傾き、且つ、
前縁が側面視において上流側に凸となるかあるいは正面
視において回転方向側に凸となる形状をしているので、
抜けた毛髪がファンの羽根に引っ掛かかり難くすること
ができて、ファンを停止させてファンやモータが損傷し
てしまうのを抑えることができる。In addition to the effect of the invention described in claim 1 or 2, the invention according to claim 3 is characterized in that the blade passes through the end portion on the central axis side of the hub portion of the upstream end edge of the blade. With respect to a plane perpendicular to the central axis, a line segment from the end on the central axis side of the upstream edge of the blade to the end on the side opposite to the central axis is included or the line segment is downstream. Tilt to the side, and
Since the front edge has a shape that is convex on the upstream side in side view or convex on the rotational direction side in front view,
It is possible to prevent the hair that has come off from being caught by the blades of the fan, and to stop the fan and prevent damage to the fan and the motor.
【００４０】また請求項４記載の発明にあっては、上記
請求項１乃至請求項３のいずれかに記載の発明の効果に
加えて、ハブ部の中心軸に垂直な平面に対して、羽根の
上流側端縁の前記中心軸側の端部と下流側端縁の前記中
心軸側の端部に至る線分がなす角度が４５度以上である
ので、ファンの回転数や羽根の枚数及び面積等をそのま
まにして風量を増大させることができるうえに、前記平
面と線分がなす角度の増大に伴って羽根の前縁が流れ方
向角度に突出するのを抑えることができる。Further, in the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, in addition to the plane perpendicular to the central axis of the hub portion, the blade is Since the angle formed by the line segment between the end on the central axis side of the upstream side edge and the end on the central axis side of the downstream side edge is 45 degrees or more, the rotation speed of the fan, the number of blades, and It is possible to increase the air flow rate while keeping the area and the like, and it is possible to suppress the front edge of the blade from protruding in the flow direction angle as the angle formed by the plane and the line segment increases.
【００４１】また請求項５記載の発明にあっては、上記
請求項１乃至請求項４のいずれかに記載の発明の効果に
加えて、ハブ部を上流側ほど小径な斜流型形状に形成し
たので、上流側より流れてきた抜けた毛髪がファンの羽
根に引っ掛かり易い上流側ほど小径な斜流型形状のハブ
部を有するファンにおいても抜けた毛髪がファンの羽根
に引っ掛かかり難くすることができる。According to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the hub portion is formed in a mixed flow type shape having a smaller diameter toward the upstream side. As a result, the hair that has come off from the upstream side is more likely to be caught by the fan blades.Even in a fan that has a hub with a diagonal flow shape with a smaller diameter on the upstream side, it is more difficult for the lost hair to be caught by the fan blades. You can
【図１】本発明の一実施形態のファンの正面図である。FIG. 1 is a front view of a fan according to an embodiment of the present invention.
【図２】同上の側面図である。FIG. 2 is a side view of the above.
【図３】同上の斜視図である。FIG. 3 is a perspective view of the above.
【図４】同上のヘアードライヤーを示し、（ａ）は外観
図であり、（ｂ）は断面図である。FIG. 4 shows the above hair dryer, (a) is an external view and (b) is a cross-sectional view.
【図５】羽根の前縁の流れ方向に対する角度と毛髪の引
っ掛かり易さとの相関関係を調べる試験の結果を示す図
である。FIG. 5 is a diagram showing a result of a test for examining a correlation between an angle of a leading edge of a blade with respect to a flow direction and easiness of catching hair.
【図６】羽根の前縁の回転方向に対する角度と毛髪の引
っ掛かり易さとの相関関係を調べる試験の結果を示す図
である。FIG. 6 is a diagram showing a result of a test for examining a correlation between an angle of a leading edge of a blade with respect to a rotation direction and easiness of catching hair.
【図７】従来例の斜視図である。FIG. 7 is a perspective view of a conventional example.
【図８】他の従来例の正面図である。FIG. 8 is a front view of another conventional example.
１ ケーシング ２ 空気流路 ２１ 吸込口 ２２ 吹出口 ３ ファン ４１ モータ ５ ハブ部 ６ 羽根 ｓ 中心軸 ｒ 半径 ロ 回転方向 1 casing 2 Air flow path 21 Suction port 22 Outlet 3 fans 41 motor 5 Hub section 6 feathers s central axis r radius Rotation direction
Claims (5)
該空気流路の上流側端部に吸込口を設けると共に下流側
端部に吹出口を設け、空気流路内にファンと該ファンを
駆動するモータとを配置し、ファンをモータに連結され
るハブ部と該ハブ部より突設される複数の羽根とで構成
したヘアードライヤーにおいて、ハブ部の中心軸から羽
根の上流側端縁の前記中心軸側の端部に至る線で形成さ
れる仮想的な半径に対して羽根の上流側端縁の前記中心
軸と反対側の端部がファンの回転方向と反対側にずれて
いることを特徴とするヘアードライヤー。1. A fan and the fan are provided in an air flow path, wherein an air flow path is formed inside a casing, an inlet is provided at an upstream end of the air flow path, and an air outlet is provided at a downstream end. In a hair dryer comprising a motor driven to drive a fan, and a fan composed of a hub connected to the motor and a plurality of blades protruding from the hub, an upstream edge of the blade from the central axis of the hub. Of the blade on the side opposite to the central axis with respect to a virtual radius formed by a line reaching the end on the side of the central axis of the blade. A hair dryer characterized in that.
端部を通って前記中心軸に垂直な平面に対して、羽根の
上流側端縁の前記中心軸側の端部から前記中心軸と反対
側の端部に至る線分が上流側に１０度以内の角度をなす
ことを特徴とする請求項１記載のヘアードライヤー。2. From the end of the upstream end of the blade on the center axis side to the plane perpendicular to the center axis through the end of the upstream end of the blade on the center axis side of the hub portion. The hair dryer according to claim 1, wherein a line segment that reaches the end portion on the opposite side of the central axis forms an angle of 10 degrees or less toward the upstream side.
端部を通って前記中心軸に垂直な平面に対して、羽根の
上流側端縁の前記中心軸側の端部から前記中心軸と反対
側の端部に至る線分が含まれるか若しくは前記線分が下
流側に傾き、且つ、前縁が側面視において上流側に凸と
なるかあるいは正面視において回転方向側に凸となる形
状をしていることを特徴とする請求項１又は請求項２記
載のヘアードライヤー。3. From the end of the upstream end of the blade on the central axis side to the plane perpendicular to the center axis passing through the end of the upstream end of the blade on the central axis side of the hub part. A line segment reaching the end opposite to the central axis is included, or the line segment is inclined toward the downstream side, and the front edge is convex toward the upstream side in side view, or toward the rotational direction side in front view. The hair dryer according to claim 1 or 2, which has a convex shape.
羽根の上流側端縁の前記中心軸側の端部と下流側端縁の
前記中心軸側の端部に至る線分がなす角度が４５度以上
であることを特徴とする請求項１乃至請求項３のいずれ
かに記載のヘアードライヤー。4. A plane perpendicular to the central axis of the hub portion,
The angle formed by a line segment from the end on the central axis side of the upstream edge of the blade to the end on the central axis side of the downstream edge is 45 degrees or more. Item 5. The hair dryer according to any one of Items 3.
形成することを特徴とする請求項１乃至請求項４のいず
れかに記載のヘアードライヤー。5. The hair dryer according to claim 1, wherein the hub portion is formed in a diagonal flow shape having a smaller diameter toward the upstream side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001291754A JP2003093137A (en) | 2001-09-25 | 2001-09-25 | Hair dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001291754A JP2003093137A (en) | 2001-09-25 | 2001-09-25 | Hair dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003093137A true JP2003093137A (en) | 2003-04-02 |
Family
ID=19113847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001291754A Withdrawn JP2003093137A (en) | 2001-09-25 | 2001-09-25 | Hair dryer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003093137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007019796A1 (en) * | 2005-08-19 | 2007-02-22 | Junhao Lin | A pressurized axial blower |
| WO2018064854A1 (en) * | 2016-10-07 | 2018-04-12 | 王保华 | Impeller structure |
-
2001
- 2001-09-25 JP JP2001291754A patent/JP2003093137A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007019796A1 (en) * | 2005-08-19 | 2007-02-22 | Junhao Lin | A pressurized axial blower |
| WO2018064854A1 (en) * | 2016-10-07 | 2018-04-12 | 王保华 | Impeller structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20081202 |