JPH08128693A - Fan for air supply pipe - Google Patents
Fan for air supply pipeInfo
- Publication number
- JPH08128693A JPH08128693A JP26717894A JP26717894A JPH08128693A JP H08128693 A JPH08128693 A JP H08128693A JP 26717894 A JP26717894 A JP 26717894A JP 26717894 A JP26717894 A JP 26717894A JP H08128693 A JPH08128693 A JP H08128693A
- Authority
- JP
- Japan
- Prior art keywords
- tubular portion
- fan
- electric motor
- blade
- air supply
- 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.)
- Granted
Links
Landscapes
- Ventilation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、室壁または天井に埋め
込まれた通風パイプに挿着して使用される給気形パイプ
用ファンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan for an air supply type pipe, which is used by inserting it into a ventilation pipe embedded in a room wall or a ceiling.
【０００２】[0002]
【従来の技術】近年、パイプ用ファンは取付けが簡単で
あるため、トイレ・浴室・居間の換気用に使用するケー
スが増えており、さらに高気密型の住宅の普及にともな
い給気形のものが求められている。2. Description of the Related Art In recent years, pipe fans are easy to install, so the number of cases where they are used for ventilation of toilets, bathrooms, and living rooms has increased, and with the spread of highly airtight houses, air supply type fans have been used. Is required.
【０００３】従来この種の給気形のパイプ用ファンは、
図８に示すように、内部に電動機１０１とこの電動機１
０１により駆動される羽根１０２とを有する筒部１０３
の外周部に、室壁１０４に埋め込まれたパイプ１０５の
内周面を押圧し本体を固定する取付けばね１０６を有し
ていた。また、前記筒部１０３の室内側開口１０７の外
周には、前記室壁１０４あるいは天井に沿い前記パイプ
１０５の外形より外側まで延設したフランジ部１０８が
形成されていた。さらに、フランジ部１０８の外周に
は、室内側開口１０７を室内側から覆うルーバ１０９が
嵌着されていた。Conventionally, this type of air supply type fan for pipe is
As shown in FIG. 8, the electric motor 101 and the electric motor 1 are internally provided.
Cylindrical part 103 having blades 102 driven by 01
In the outer peripheral portion of the above, a mounting spring 106 for fixing the main body by pressing the inner peripheral surface of the pipe 105 embedded in the chamber wall 104 was provided. Further, a flange portion 108 extending along the chamber wall 104 or the ceiling to the outside of the outer shape of the pipe 105 is formed on the outer periphery of the indoor side opening 107 of the cylindrical portion 103. Further, a louver 109 that covers the indoor side opening 107 from the indoor side is fitted to the outer periphery of the flange portion 108.
【０００４】そして電動機１０１は、前記筒部１０３の
内周面に一体形成された電動機固定脚１１０にねじ止め
固定され、同じく筒部１０３の室内側開口１０７側側面
に設けられた孔１１１に通されたリード線１１２によ
り、前記フランジ部１０８に設けられた電源端子部１１
３に接続されており、電動機１０１の筒部１０３の屋外
側開口１１４側には羽根１０２が取付けられていた。The electric motor 101 is screwed and fixed to an electric motor fixing leg 110 integrally formed on the inner peripheral surface of the cylindrical portion 103, and is also passed through a hole 111 provided on the side surface of the cylindrical portion 103 on the indoor side opening 107 side. The power supply terminal portion 11 provided on the flange portion 108 by the formed lead wire 112.
The blade 102 is attached to the cylindrical portion 103 of the electric motor 101 on the outdoor side opening 114 side.
【０００５】上記構成において、電源端子部１１３に電
源が供給されパイプ用ファンが運転されると、電動機１
０１により羽根１０２が回転を始め、屋外１１５の空気
はこの羽根１０２に吸引され筒部１０３およびルーバ１
０９を通り、室内１１６に給気される。In the above structure, when power is supplied to the power supply terminal portion 113 and the pipe fan is operated, the electric motor 1
01, the blade 102 starts to rotate, and the air in the outdoors 115 is sucked by the blade 102 and the cylindrical portion 103 and the louver 1
Air is supplied to the room 116 through 09.
【０００６】[0006]
【発明が解決しようとする課題】このような従来の給気
形パイプ用ファンの構成では、製品の組み立て時、電動
機１０１は筒部１０３の屋外側開口１１５から筒部１０
３内に設置され電動機固定脚１１０にねじ止めされ、そ
の後羽根１０２が挿入固定されていたが、どちらも筒部
１０３の内部奥での作業であり、ねじ締めがしにくく、
羽根１０２の挿入位置決めもしにくく、組立て作業性が
悪いという問題があった。With such a conventional air supply pipe fan configuration, the electric motor 101 is inserted from the outdoor side opening 115 of the tubular portion 103 to the tubular portion 10 when the product is assembled.
Although it was installed inside 3 and screwed to the electric motor fixing leg 110, and then the blade 102 was inserted and fixed, both of them are work inside the tube portion 103, and it is difficult to tighten the screw,
It is difficult to insert and position the blades 102, and there is a problem that assembly workability is poor.
【０００７】また、部品点数低減のために筒部１０３と
フランジ部１０８および電動機固定脚１１０を一体に形
成すると、前記筒部１０３の屋外側開口１１４端部の形
状は、金型の抜き勾配の関係で屋外１１５方向に対し末
広がりか、良くてもストレートにしか形成できず、結果
として特性面で、静圧の高い商品を得ることができない
という問題と、逆に低静圧で大風量を流した場合には騒
音値が高くなるという問題があった。Further, if the cylindrical portion 103, the flange portion 108 and the electric motor fixing leg 110 are integrally formed in order to reduce the number of parts, the shape of the end portion of the outdoor side opening 114 of the cylindrical portion 103 becomes a draft angle of the mold. Because of this, the problem is that it can spread toward the outside 115 direction, or at best it can only be formed straight, and as a result it is not possible to obtain a product with a high static pressure, and conversely a large static air flow with a low static pressure. In that case, there is a problem that the noise level becomes high.
【０００８】また、電動機１０１と電源端子部１１３と
の接続は、筒部１０３の室内側開口１０７側側面に設け
られた孔１１１に通したリード線１１２で行われるが、
リード線１１２を通す作業がやりにくく、作業性を上げ
るために孔１１１の孔径を大きくすると筒部１０３の気
密性が低下し、給気した空気が筒部１０３の外周部を通
って屋外１１５に漏れてしまうという問題があった。The connection between the electric motor 101 and the power supply terminal portion 113 is made by the lead wire 112 passing through the hole 111 provided on the side surface of the cylindrical portion 103 on the indoor side opening 107 side.
The work of passing the lead wire 112 is difficult to perform, and if the hole diameter of the hole 111 is increased in order to improve workability, the airtightness of the tubular portion 103 decreases, and the supplied air passes through the outer peripheral portion of the tubular portion 103 to the outside 115. There was a problem of leakage.
【０００９】また、筒部１０３とパイプ１０５との間に
は、パイプ１０５の内周面を押圧し本体を固定する取付
けばね１０６を設置しているが、パイプ１０５は施工業
者が手配するため内径がまちまちで、結果として筒部１
０３とパイプ１０５との隙間が一定ではなく、隙間が小
さい場合には取付けばね１０６の押圧力が強くなりすぎ
て筒部１０３を変形させてしまうという問題があった。A mounting spring 106 for pressing the inner peripheral surface of the pipe 105 and fixing the main body is installed between the cylindrical portion 103 and the pipe 105. It is mixed, and as a result, the tube part 1
The gap between the pipe 03 and the pipe 105 is not constant, and when the gap is small, the pressing force of the mounting spring 106 becomes too strong and the cylinder portion 103 is deformed.
【００１０】また、屋外１１５の空気を給気する際に、
塵埃や小形の虫、杉花粉などの人体にアレルギーを起こ
す各種微粒子等が空気に混入してくるという問題があっ
たが、従来のこの種の給気形のパイプ用ファンにはこれ
らを除去する手段を講じたものはなかった。In addition, when air is supplied to the outside 115,
There was a problem that various fine particles such as dust, small insects and cedar pollen that are allergic to the human body get mixed into the air, but these are removed by the conventional air supply type pipe fan of this kind. No one took any steps.
【００１１】また、冬期や夏期などに室内に対して温湿
度条件の差の大きい空気を給気する際、給気された空気
流が直接室内１１６側の在室者に達すると不快感を与え
るという問題があった。Further, when air having a large difference in temperature and humidity conditions is supplied to the room during the winter or summer, it is uncomfortable if the supplied air flow directly reaches the person in the room 116 side. There was a problem.
【００１２】本発明は上記課題を解決するもので、本体
筒部に電動機と羽根が取付けやすい給気形パイプ用ファ
ンを提供することを第１の目的とする。SUMMARY OF THE INVENTION The first object of the present invention is to provide a fan for an air supply pipe in which a motor and blades can be easily attached to a main body cylinder.
【００１３】第２の目的は、静圧を高く取れ、または大
風量でも騒音値を低く押さえることのできるといった性
能面の改善にある。The second object is to improve the performance in that the static pressure can be made high and the noise value can be kept low even with a large air volume.
【００１４】第３の目的は、電動機と電源端子部を接続
するリード線を通す作業を簡単にし、しかも筒部の気密
性を高めることにある。A third object is to simplify the work of passing the lead wire connecting the electric motor and the power supply terminal portion, and to enhance the airtightness of the tubular portion.
【００１５】第４の目的は、取付けばねの押圧力による
筒部の変形を低減することにある。第５の目的は、給気
中の塵埃や小形の虫、杉花粉などの人体にアレルギーを
起こす各種微粒子等を除去することにある。A fourth object is to reduce the deformation of the cylindrical portion due to the pressing force of the mounting spring. A fifth object is to remove various fine particles that are allergic to the human body, such as dust in the air supply, small insects, and cedar pollen.
【００１６】第６の目的は、冬期や夏期などに室内に対
して温湿度条件の差の大きい空気を給気する際、給気さ
れた空気流によって室内の在室者に不快感を与えること
なく、給気のできるようにすることにある。[0016] A sixth object is to give discomfort to a person in the room by the supplied air flow when supplying air with a large temperature / humidity difference to the room in winter or summer. Not to be able to supply air.
【００１７】[0017]
【課題を解決するための手段】本発明の給気形パイプ用
ファンは上記第１および第２の目的を達成するために、
第１の手段は内部に電動機が収納される長さの筒状で室
内側開口の外周には外方に延設したフランジ部を設けた
第１の筒部と、この第１の筒部の外周部に室壁あるいは
天井に設けられたパイプの内周面に押圧するように配設
された取付けばねと、前記電動機に取付けられる羽根を
覆う筒状で前記第１の筒部に着脱自在に結合される第２
の筒部と、前記フランジ部に取付けられて前記第１の筒
部の室内側開口を室内側から覆うルーバとを備え、前記
電動機および羽根を覆う本体部分を前記第１の筒部と第
２の筒部に分割した構成とする。In order to achieve the above first and second objects, the fan for an air supply type pipe of the present invention has the following features.
A first means is a tubular shape having a length for accommodating an electric motor therein, a first tubular portion having an outwardly extending flange portion provided on an outer periphery of an indoor side opening, and a first tubular portion of the first tubular portion. A mounting spring disposed so as to press the inner peripheral surface of a pipe provided on the chamber wall or the ceiling on the outer peripheral portion, and a tubular shape that covers the blade attached to the electric motor and is detachably attached to the first tubular portion. Second combined
And a louver that is attached to the flange portion and covers the indoor side opening of the first tubular portion from the indoor side, and the main body portion that covers the electric motor and the blades is the first tubular portion and the second tubular portion. The structure is divided into the cylindrical parts.
【００１８】また、第２の目的を達成するために、第２
の手段は第２の筒部の室内側端部が、羽根の反吸い込み
側端部の近傍に位置する構成とする。In order to achieve the second object, the second
The means is configured such that the indoor side end of the second tubular portion is located near the anti-suction side end of the blade.
【００１９】また、第２の目的を達成するために、第３
の手段は第２の筒部の羽根吸い込み側端部を、外周方向
に拡がるベルマウス形状としプロペラ形の羽根を設けた
構成とする。In order to achieve the second object, the third object
In this means, the blade suction side end of the second tubular portion is formed into a bell mouth shape that expands in the outer peripheral direction, and a propeller-shaped blade is provided.
【００２０】また、第２の目的を達成するために、第４
の手段は第２の筒部の内径を、第１の筒部の内径より小
さく形成した構成とする。In order to achieve the second object, the fourth object
This means is configured such that the inner diameter of the second tubular portion is smaller than the inner diameter of the first tubular portion.
【００２１】また、第３の目的を達成するために、第５
の手段は第１の筒部の室外側開口の端部に、電動機と電
源端子部を接続するリード線を通すスリット形状の開口
溝を室内側方向に設け、第２の筒部の室内側端部に設け
た閉鎖片でリード線挿通後の前記開口溝を閉鎖する構成
とする。In order to achieve the third object, the fifth
Means is provided in the indoor side end of the second tubular portion with a slit-shaped opening groove through which a lead wire connecting the electric motor and the power supply terminal portion is inserted, at the end of the outdoor-side opening of the first tubular portion. The opening groove after the lead wire is inserted is closed by a closing piece provided on the portion.
【００２２】また、第４の目的を達成するために、第６
の手段は取付けばねの一端をフランジ部に固定した構成
とする。In order to achieve the fourth object, the sixth
This means is configured such that one end of the mounting spring is fixed to the flange portion.
【００２３】また、第５の目的を達成するために、第７
の手段はフィルターをフランジ部に着脱自在に設けた構
成とする。Further, in order to achieve the fifth object,
This means has a structure in which a filter is detachably attached to the flange portion.
【００２４】また、第６の目的を達成するために、第８
の手段はルーバの通気開口部に、斜め上方に吹き出し方
向が開放する複数のシャッタを設けた構成とする。In order to achieve the sixth object, the eighth
In the above means, a plurality of shutters whose opening direction is opened obliquely above the ventilation opening of the louver are provided.
【００２５】[0025]
【作用】本発明は上記した第１の手段の構成により、第
１の筒部の長さが短くなり、電動機のねじ締めが容易に
なり、羽根の取付けも第１の筒部の外で行うことができ
ることとなるとともに、第２の筒部の羽根吸い込み側端
部を羽根吸い込み口を覆うオリフィス形状とすることが
容易にでき、性能の改善を行うことができることとな
る。According to the present invention, by the constitution of the above-mentioned first means, the length of the first cylinder portion is shortened, the screw tightening of the electric motor is facilitated, and the blades are also attached outside the first cylinder portion. In addition, it is possible to easily form the blade suction side end of the second tubular portion into an orifice shape that covers the blade suction port, and it is possible to improve the performance.
【００２６】また、第２の手段の構成により、空気の通
風路の形状を、吸い込み口近傍である羽根周囲の内径を
小さく、羽根周囲を過ぎてからは内径を大きく取れるの
で、性能の改善を行うことができることとなる。Further, by the configuration of the second means, the shape of the air ventilation passage can be made small so that the inner diameter around the blade near the suction port is small and the inner diameter is large after passing around the blade, thus improving the performance. You will be able to do it.
【００２７】また、第３の手段の構成により、羽根をプ
ロペラ形に交換することにより大風量時の騒音値を低減
できることとなる。Further, with the structure of the third means, the noise value at the time of a large air volume can be reduced by exchanging the blades with the propeller type.
【００２８】また、第４の手段の構成により、羽根径を
小さくすることにより静圧の高い商品を得ることができ
ることとなる。Further, with the structure of the fourth means, it is possible to obtain a product having a high static pressure by reducing the diameter of the blade.
【００２９】また、第５の手段の構成により、電動機と
電源端子部を接続するリード線の取付け作業が容易にな
り、しかも第１の筒部の気密性を高めることができるこ
ととなる。Further, with the structure of the fifth means, the work of attaching the lead wire connecting the electric motor and the power supply terminal portion can be facilitated, and the airtightness of the first tubular portion can be improved.
【００３０】また、第６の手段の構成により、取付けば
ねの押圧力による第１の筒部の変形を低減できることと
なる。Further, with the configuration of the sixth means, it is possible to reduce the deformation of the first tubular portion due to the pressing force of the mounting spring.
【００３１】また、第７の手段の構成により、給気中の
塵埃や小形の虫、各種微粒子等を除去することができる
こととなる。Further, with the configuration of the seventh means, it is possible to remove dust, small insects, various fine particles and the like in the air supply.
【００３２】また、第８の手段の構成により、冬期や夏
期なども室内の在室者に不快感を与えることなく、給気
ができることとなる。Further, according to the constitution of the eighth means, it is possible to supply the air even in the winter or summer without giving any discomfort to the person in the room.
【００３３】[0033]
【実施例】以下、本発明の第１実施例について図１〜図
３を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
【００３４】図に示すように、ターボ形の羽根１を駆動
する電動機２を取付ける電動機固定脚３を内周面に複数
個有し、ほぼ電動機２が収納される長さで室内側開口４
の外周には室壁５に埋込まれたパイプ６の外形より外側
まで延設したフランジ部７を形成した第１の筒部８を設
け、第１の筒部８の外周には室壁５に埋込まれたパイプ
６の内周面に押圧して第１の筒部８を保持する取付けば
ね９の一端をフランジ部７に設けたボス部１０に取付け
配設している。As shown in the figure, a plurality of electric motor fixing legs 3 for mounting the electric motors 2 for driving the turbo blades 1 are provided on the inner peripheral surface, and the indoor side opening 4 has a length substantially accommodating the electric motors 2.
A first cylinder portion 8 having a flange portion 7 extending to the outside of the outer shape of the pipe 6 embedded in the chamber wall 5 is provided on the outer periphery of the chamber wall 5 on the outer periphery of the first cylinder portion 8. One end of a mounting spring 9 for holding the first cylindrical portion 8 by pressing it against the inner peripheral surface of the pipe 6 embedded in is attached to the boss portion 10 provided on the flange portion 7.
【００３５】また、第１の筒部８のフランジ部７には電
源端子部１１を設け、第１の筒部８の屋外側開口１２に
は電動機２と電源端子部１１を接続するリード線１３を
通すスリット形状の開口溝１４を室内１５側に向け形成
し、第１の筒部８の内周面には引っ掛け用リブ１６を室
外側開口１２側近傍に設けている。A power supply terminal portion 11 is provided on the flange portion 7 of the first tubular portion 8, and a lead wire 13 connecting the electric motor 2 and the power source terminal portion 11 is provided in the outdoor side opening 12 of the first tubular portion 8. A slit-shaped opening groove 14 for passing through is formed toward the room 15 side, and a hooking rib 16 is provided on the inner peripheral surface of the first tubular portion 8 in the vicinity of the outdoor side opening 12 side.
【００３６】そして、羽根１を覆う形状で室外１７側の
端部には羽根１の吸い込み部１８に対応するオリフィス
部１９を有し、第１の筒部８の室外側開口１２に嵌合す
る筒状で、室内側端部２０には回動することにより第１
の筒部８に設けた引っ掛け用リブ１６に係合する引っ掛
け用爪２１および、第１の筒部８に設けたスリット形状
の開口溝１４にリード線１３が挿通されたあとに存在す
る開口溝１４の開口部分を閉鎖する形状の閉鎖片２２を
突出し設け第２の筒部２３を形成している。An orifice portion 19 corresponding to the suction portion 18 of the blade 1 is provided at the end portion on the outdoor 17 side of the shape that covers the blade 1, and is fitted into the outdoor side opening 12 of the first tubular portion 8. It has a tubular shape and is rotated by the end portion 20 on the indoor side to
The hooking claw 21 that engages with the hooking rib 16 provided on the tubular portion 8 and the opening groove that exists after the lead wire 13 is inserted into the slit-shaped opening groove 14 provided on the first tubular portion 8. A second tubular portion 23 is formed by projecting a closing piece 22 having a shape for closing the opening portion of 14.
【００３７】また、フランジ部７の外周には室内側開口
４を室内１５側から覆うルーバ２４が装着されている。A louver 24 is mounted on the outer periphery of the flange portion 7 to cover the indoor side opening 4 from the indoor side 15.
【００３８】上記構成において、電動機２はリード線１
３により電源端子部１１に予め接続されており、第１の
筒部８への取付けは室外側開口１２側から、まずリード
線１３を開口溝１４に挿入し、次に第１の筒部８の内周
面に一体形成された電動機固定脚３にねじ止め固定し、
室外側開口１２側から電源端子部１１をフランジ部７に
取付け、その後羽根１を電動機２に固定する。In the above structure, the electric motor 2 has the lead wire 1.
3, which is previously connected to the power supply terminal portion 11 by means of 3, the lead wire 13 is first inserted into the opening groove 14 from the outdoor side opening 12 side, and then the first cylindrical portion 8 is attached. Is fixed to the electric motor fixing leg 3 integrally formed on the inner peripheral surface of the
The power supply terminal portion 11 is attached to the flange portion 7 from the outdoor side opening 12 side, and then the blade 1 is fixed to the electric motor 2.
【００３９】そして、第１の筒部８の室外側開口１２に
第２の筒部２３の室内側端部２０を嵌合したのち回動し
て第１の筒部８に設けられた引っ掛け用リブ１６に第２
の筒部２３に設けた引っ掛け用爪２１を係合し、第１の
筒部８に第２の筒部２３を結合するとともに、第２の筒
部２３に設けた閉鎖片２２により、リード線１３が挿通
されたあとに開口溝１４に存在する開口部分を閉鎖し、
フランジ部７にルーバ２４を装着して組立てられる。Then, the indoor side end 20 of the second tubular portion 23 is fitted into the outdoor side opening 12 of the first tubular portion 8 and is then rotated to be hooked on the first tubular portion 8. Second on rib 16
The hooking claw 21 provided on the tubular portion 23 of the second tubular portion 23 is engaged to couple the second tubular portion 23 to the first tubular portion 8, and the lead piece is provided by the closing piece 22 provided on the second tubular portion 23. After the 13 is inserted, the opening portion existing in the opening groove 14 is closed,
The louver 24 is attached to the flange portion 7 for assembly.
【００４０】また、室壁５に埋設されたパイプ６内に取
付けばね９の弾性に抗して挿入することによりパイプ用
ファンは室壁５に取付けられる。The pipe fan is mounted on the chamber wall 5 by inserting it into the pipe 6 buried in the chamber wall 5 against the elasticity of the mounting spring 9.
【００４１】そして、電源端子部１１に電源が供給され
パイプ用ファンが運転されると、電動機２によりターボ
形の羽根１が駆動し、室外１７の空気はこの羽根１に吸
引され、オリフィス部１９、第２の筒部２３、第１の筒
部８およびルーバ２４を通り室内１５に給気される。When power is supplied to the power supply terminal portion 11 and the pipe fan is operated, the turbo blade 1 is driven by the electric motor 2 and the air outside 17 is sucked by the blade 1 and the orifice portion 19 The air is supplied to the room 15 through the second tubular portion 23, the first tubular portion 8 and the louver 24.
【００４２】このように本発明の第１実施例の給気形パ
イプ用ファンによれば、電動機２および羽根１を覆う形
状の本体部分を第１の筒部８と第２の筒部２３により形
成しているので、第１の筒部８の長さを短く形成するこ
とができ、電動機２の第１の筒部８内への取付けおよび
電動機固定脚３へのねじ締めが容易となり、羽根１の取
付けも第１の筒部８の外側で容易に行うことができ、ま
た、第２の筒部２３の取付けも第１の筒部８の内周面に
設けられた引っ掛け用リブ１６に第２の筒部２３に設け
られた引っ掛け用爪２１を係合するだけで取付けられる
ので組立て作業性が良くなる。As described above, according to the air supply pipe fan of the first embodiment of the present invention, the main body portion having a shape covering the electric motor 2 and the blades 1 is formed by the first cylinder portion 8 and the second cylinder portion 23. Since it is formed, the length of the first tubular portion 8 can be made short, and the mounting of the electric motor 2 in the first tubular portion 8 and the screw fastening to the electric motor fixing leg 3 become easy, and the blade 1 can be easily attached outside the first tubular portion 8, and the second tubular portion 23 can also be attached to the hooking rib 16 provided on the inner peripheral surface of the first tubular portion 8. Since it can be attached only by engaging the hooking claw 21 provided on the second tubular portion 23, the assembling workability is improved.
【００４３】また、第２の筒部２３の室外１７側端部に
ターボ形の羽根１の吸い込み部１８に対応するオリフィ
ス部１９を形成しているので、静圧がかかった場合の空
気の逆流を防止し確実に給気することができ、性能の改
善を行うことができることとなる。Further, since the orifice portion 19 corresponding to the suction portion 18 of the turbo blade 1 is formed at the end of the second tubular portion 23 on the outdoor side 17, the backflow of air when static pressure is applied. Therefore, it is possible to reliably prevent air supply and improve performance.
【００４４】また、第２の筒部２３の室内側端部２０を
羽根１の反吸い込み側端部２５の近傍に位置させ、第２
の筒部２３の内径φＡを第１の筒部８の内径φＢより小
径に形成し、羽根１と第２の筒部２３との隙間を小さく
設定しているので、静圧がかかった場合の空気の逆流を
防止し、高い機器静圧を得ることができるとともに、羽
根１の周囲を過ぎてからは、第１の筒部８の内径φＢは
第２の筒部２３の内径φＡより大きく羽根１の周囲を通
りすぎた空気はより広い通風路を抵抗少なく流れるの
で、風量の増加、発生騒音の低減を図ることができる。Further, the indoor side end portion 20 of the second tubular portion 23 is located near the anti-suction side end portion 25 of the blade 1, and
The inner diameter φA of the cylindrical portion 23 is smaller than the inner diameter φB of the first cylindrical portion 8 and the gap between the blade 1 and the second cylindrical portion 23 is set to be small, so that when static pressure is applied. Backflow of air can be prevented, a high device static pressure can be obtained, and after passing around the periphery of the blade 1, the inner diameter φB of the first cylindrical portion 8 is larger than the inner diameter φA of the second cylindrical portion 23. Since the air that has passed around 1 flows through the wider ventilation passage with less resistance, it is possible to increase the air volume and reduce the generated noise.
【００４５】また、電源端子部１１と電動機２を接続す
るリード線１３は電動機２を第１の筒部８の室外側開口
１２側より組み込むときに、第１の筒部８の室外側開口
１２より室内１５側に向かって形成したスリット状の開
口溝１４に挿入し、リード線１３が挿入されたあとの開
口溝１４部分は第２の筒部２３に設けた閉鎖片２２によ
り閉鎖されるので、一連の組立て作業は全て室外側開口
１２側より行うことができ、リード線１３の取付けも予
め電源端子部１１に取付けた状態で開口溝１４に挿入す
るだけで良くリード線１３の取付け作業が容易になると
ともに、開口溝１４は閉鎖片２２により閉鎖されるので
気密性も確保することができる。Further, the lead wire 13 connecting the power supply terminal portion 11 and the electric motor 2 has the outdoor opening 12 of the first cylindrical portion 8 when the electric motor 2 is assembled from the outdoor side opening 12 side of the first cylindrical portion 8. Since it is inserted into the slit-shaped opening groove 14 formed toward the interior 15 side and the lead wire 13 is inserted, the opening groove 14 portion is closed by the closing piece 22 provided in the second tubular portion 23. A series of assembling work can be all performed from the outdoor side opening 12 side, and the lead wire 13 can be attached only by inserting the lead wire 13 into the opening groove 14 in a state where the lead wire 13 is attached to the power supply terminal portion 11 in advance. At the same time, the opening groove 14 is closed by the closing piece 22 so that airtightness can be secured.
【００４６】また、室壁５に埋込まれるパイプ６は施工
業者が手配するのが通例で、その内径はまちまちのため
内径が小さすぎる場合には取付けばね９の押圧力が大き
くなりすぎ、結果として押圧力の反力で第１の筒部８を
変形させる危険性があるものであるが、取付けばね９の
一端をフランジ部７に固定すると、取付けばね９の両端
とも筒部とパイプの間に位置させていた従来例に比較
し、パイプ６の内周面への押圧力が同じで、その反力の
ほぼ１／２は第１の筒部８の外周面にかかり、残りのほ
ぼ１／２の反力はフランジ部７にかかることとなり、第
１の筒部８の変形が緩和されることとなる。Further, the pipe 6 embedded in the chamber wall 5 is usually arranged by a contractor, and if the inner diameter is too small, the pressing force of the mounting spring 9 becomes too large. As a result, there is a risk that the first cylindrical portion 8 will be deformed by the reaction force of the pressing force. However, if one end of the mounting spring 9 is fixed to the flange portion 7, both ends of the mounting spring 9 are between the cylindrical portion and the pipe. Compared with the conventional example that is located at 1, the pressing force on the inner peripheral surface of the pipe 6 is the same, and about half of the reaction force is applied to the outer peripheral surface of the first tubular portion 8 and the remaining about 1 The reaction force of / 2 is applied to the flange portion 7, and the deformation of the first tubular portion 8 is relieved.
【００４７】なお、第１実施例においては室壁に取付け
る場合について説明したが、天井に取付ける場合も同様
の作用効果をもたらすことはいうまでもない。In the first embodiment, the case of mounting on the chamber wall has been described, but it goes without saying that the same effect can be obtained when mounting on the ceiling.
【００４８】以下、本発明の第２実施例について、図４
を参照しながら説明する。なお上記第１実施例の構成要
素と同じ構成要素については、同一符号を付し、詳細な
説明は省略する。The second embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to. The same components as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
【００４９】図に示すように、第２実施例は上記第１実
施例に対し、第２の筒部３０の羽根吸い込み側端部を、
筒部の外周方向に拡がるベルマウス形状３１とし、羽根
３２をプロペラ形としたものである。As shown in the figure, the second embodiment differs from the first embodiment in that the blade suction side end of the second tubular portion 30 is
The bell-mouth shape 31 is expanded in the outer peripheral direction of the cylindrical portion, and the blades 32 are propeller-shaped.
【００５０】上記構成において、羽根３２をプロペラ形
とすることにより、機器静圧は低下するものの給気風量
は大幅に増加し、第２の筒部３０の羽根吸い込み側端部
を筒部の外周方向に拡がるベルマウス形状３１とするこ
とにより、吸い込み部の気流の乱れが減少するので、大
風量でも騒音値は低く押さえることができる。In the above structure, by making the blades 32 of the propeller type, the static pressure of the equipment is reduced, but the amount of air supply is greatly increased, and the blade suction side end of the second tubular portion 30 is set to the outer periphery of the tubular portion. By forming the bell mouth shape 31 that expands in the direction, the turbulence of the air flow in the suction portion is reduced, so that the noise value can be kept low even with a large air volume.
【００５１】このように本発明の第２実施例によれば、
他の本体部分はそのままで羽根３２と第２の筒部３０と
を変更するだけで、大風量で騒音値の低い商品を得るこ
とができる。Thus, according to the second embodiment of the present invention,
By simply changing the blades 32 and the second tubular portion 30 while leaving the other main body parts unchanged, a product with a large air volume and a low noise value can be obtained.
【００５２】以下、本発明の第３実施例について、図５
を参照しながら説明する。なお上記第２実施例の構成要
素と同じ構成要素については、同一符号を付し、詳細な
説明は省略する。The third embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to. The same components as those of the second embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
【００５３】図に示すように、第３実施例は上記第１実
施例に対し、第２の筒部４０の内径φＣを第１の筒部８
の内径φＢより小さくて、上記第１実施例の第２の筒部
２３の内径φＡよりもさらに小さく設定し、羽根４１の
外径φＤもそれに比例して小さくしたものである。As shown in the figure, the third embodiment differs from the first embodiment in that the inner diameter φC of the second tubular portion 40 is smaller than that of the first tubular portion 8.
The inner diameter φB of the blade 41 is set to be smaller than the inner diameter φB of the second cylindrical portion 23 of the first embodiment, and the outer diameter φD of the blade 41 is also reduced in proportion thereto.
【００５４】上記構成において、第２の筒部４０の内径
φＣをさらに小さく設定し、第２の筒部４０の内周面と
羽根４１との隙間はそのままで、羽根４１の外径φＤを
小さくすることにより、羽根４１の負荷は軽くなり回転
数を高く設定できるので、給気風量は低下するものの機
器静圧は大幅に増加させることができる。In the above structure, the inner diameter φC of the second tubular portion 40 is set to be smaller, and the outer diameter φD of the blade 41 is reduced while leaving the gap between the inner peripheral surface of the second tubular portion 40 and the blade 41 unchanged. By doing so, the load on the blades 41 is lightened and the number of rotations can be set high, so that the static pressure of the equipment can be greatly increased although the amount of air supply is reduced.
【００５５】このように本発明の第３実施例によれば、
他の本体部分はそのままで羽根４１と第２の筒部４０と
を変更するだけで、低風量で機器静圧の高い商品を得る
ことができる。As described above, according to the third embodiment of the present invention,
By simply changing the blades 41 and the second tubular portion 40 while leaving the other main body portions as they are, it is possible to obtain a product with a low air flow and a high device static pressure.
【００５６】以下、本発明の第４実施例について、図６
および図７を参照しながら説明する。The fourth embodiment of the present invention will be described below with reference to FIG.
The description will be made with reference to FIG.
【００５７】なお上記第１実施例の構成要素と同じ構成
要素については、同一符号を付し、詳細な説明は省略す
る。The same components as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.
【００５８】図に示すように、第１の筒部８の室内側開
口４に位置するようにフランジ部７Ａにフィルター収納
部５０を設け、このフィルター収納部５０に収納された
フィルター５１はフィルター押えばね５２で押えフィル
ター５１を着脱自在に設け、ルーバ５３の通気開口部５
４には斜め上方に吹き出し方向を開放する複数のシャッ
ター５５の両端を支持したシャッター枠５６を設けたシ
ャッター組５７を着脱自在に設け、ルーバ５３の前方に
は通気路が形成される間隔を形成して化粧板５８を設け
る。As shown in the figure, a filter accommodating portion 50 is provided in the flange portion 7A so as to be located at the indoor side opening 4 of the first cylindrical portion 8, and the filter 51 accommodated in the filter accommodating portion 50 is a filter holder. The pressing filter 51 is detachably provided by the spring 52, and the ventilation opening 5 of the louver 53 is provided.
4, a shutter set 57 provided with a shutter frame 56 supporting both ends of a plurality of shutters 55 that open obliquely upward is provided detachably, and an interval for forming a ventilation path is formed in front of the louver 53. Then, the decorative plate 58 is provided.
【００５９】上記構成において、パイプ用ファンを運転
して室外１７から空気を給気する場合は、空気に混入し
てくる可能性のある塵埃や小形の虫、杉花粉などの人体
にアレルギーを起こす各種微粒子等はフィルター５１で
除去され、浄化された空気流はシャッター５５によって
室内１５側の斜め上方に向かって吹き出されることとな
る。In the above structure, when the pipe fan is operated to supply the air from the outside 17, allergies are caused to the human body such as dust, small insects, cedar pollen, etc. which may be mixed in the air. Various fine particles and the like are removed by the filter 51, and the purified airflow is blown out by the shutter 55 obliquely upward on the room 15 side.
【００６０】このように本発明の第４実施例の給気形パ
イプファンによれば、フィルター５１により室外１７側
からの給気空気中に含まれる塵埃や、小形の虫、各種微
粒子等が除去されるとともに、フィルター５１が汚れた
際の交換もフィルター押えばね５２をたわませてフィル
ター５１を着脱することにより簡単に行うことができ
る。As described above, according to the air supply type pipe fan of the fourth embodiment of the present invention, the filter 51 removes dust, small insects, various fine particles and the like contained in the air supplied from the outside 17 side. In addition, when the filter 51 becomes dirty, it can be easily replaced by bending the filter pressing spring 52 and attaching or detaching the filter 51.
【００６１】また、給気された空気は室内の上方に向け
吹き出されるので特に冬期や夏期などにおいて、室内１
５側に対して温湿度条件の差の大きい室外１７側の空気
を給気する際、給気された空気流が直接室内１５側の在
室者に達し難くなって、在室者に不快感を与えることが
防止できることとなる。Further, since the supplied air is blown out toward the upper part of the room, especially in the winter and summer, the room 1
When supplying the air on the outdoor 17 side where the difference in temperature and humidity conditions is large with respect to the 5 side, it becomes difficult for the supplied air flow to reach the occupants on the indoor 15 side directly, which causes discomfort to the occupants. Can be prevented.
【００６２】[0062]
【発明の効果】以上の実施例から明らかなように、本発
明によれば内部に電動機が収納される長さの筒状で室内
側開口の外周には外方に延設したフランジ部を設けた第
１の筒部と、電動機に取付けられる羽根を覆う筒状で前
記第１の筒部に結合される第２の筒部に分割して本体部
分を構成しているので、第１の筒部の長さが短くなり、
電動機および羽根の取付けが容易となる給気形パイプ用
ファンを提供できる。As is apparent from the above-described embodiments, according to the present invention, a cylindrical portion having a length for accommodating an electric motor inside is provided with an outwardly extending flange portion on the outer periphery of the indoor side opening. The first cylinder part is divided into the first cylinder part and the second cylinder part that is joined to the first cylinder part in a cylindrical shape that covers the blades attached to the electric motor. The length of the part becomes shorter,
It is possible to provide a fan for an air supply type pipe in which attachment of an electric motor and blades is facilitated.
【００６３】また、第２の筒部の、室内側端部を羽根の
反吸い込み側端部の近傍に位置させ、室外側の端部の形
状をオリフィス形状、ベルマウス形状、径小などに変え
ることにより、静圧を高く取れ、または大風量でも騒音
値を低く押さえることのできるといった性能面の改善を
図ることができる。Further, the indoor side end of the second tubular portion is positioned near the anti-suction side end of the blade, and the shape of the outdoor side end is changed to an orifice shape, bellmouth shape, small diameter, etc. As a result, it is possible to improve the performance such that the static pressure can be made high or the noise value can be kept low even with a large air volume.
【００６４】また、第１の筒部の屋外側開口の端部に、
電動機と電源端子部を接続するリード線を通すスリット
形状の開口溝を設け、第２の筒部の室内側端部に設けた
閉鎖片で、リード線挿通後の前記開口溝を閉鎖する構成
とすることで、電動機と電源端子部を接続するリード線
を通す作業を簡単にし、しかも第１の筒部の気密性を高
めることができる。At the end of the outdoor side opening of the first tubular portion,
A configuration is provided in which a slit-shaped opening groove through which a lead wire connecting the electric motor and the power supply terminal portion is inserted is provided, and the opening groove after the lead wire is inserted is closed by a closing piece provided at the indoor end of the second tubular portion. By doing so, it is possible to simplify the work of passing the lead wire that connects the electric motor and the power supply terminal portion, and further improve the airtightness of the first tubular portion.
【００６５】また、取付けばねの一端をフランジ部に固
定することにより、取付けばねの押圧力による筒部の変
形を低減することができる。Further, by fixing one end of the mounting spring to the flange portion, it is possible to reduce the deformation of the cylindrical portion due to the pressing force of the mounting spring.
【００６６】また、フィルターをフランジ部に着脱自在
に設けることで、給気中の塵埃や小形の虫、杉花粉など
の人体にアレルギーを起こす各種微粒子等を除去するこ
とができる。Further, by detachably installing the filter on the flange portion, it is possible to remove various fine particles which are allergic to the human body, such as dust in the air supply, small insects and cedar pollen.
【００６７】また、ルーバの通気開口部に、斜め上方に
向かい吹き出し方向が開放する複数のシャッターを設け
ることで、冬期や夏期などにおいて給気された空気流に
よって室内の在室者に不快感を与えることなく給気がで
きる。Further, the ventilation opening of the louver is provided with a plurality of shutters which are directed obliquely upward and open in the blowing direction, so that the air flow of the air supplied during the winter or summer makes the occupants of the room uncomfortable. You can supply air without giving.
【図１】本発明の第１実施例の給気形パイプ用ファンの
設置状態を示す断面図FIG. 1 is a sectional view showing an installed state of a fan for an air supply pipe according to a first embodiment of the present invention.
【図２】同第１実施例の第１の筒部と第２の筒部の結合
前の状態を示す側面図FIG. 2 is a side view showing a state before the first and second cylindrical portions of the first embodiment are joined together.
【図３】同第１実施例の取付けばね部分の拡大断面図FIG. 3 is an enlarged sectional view of a mounting spring portion of the first embodiment.
【図４】同第２実施例の給気形パイプ用ファンの設置状
態を示す断面図FIG. 4 is a cross-sectional view showing an installed state of a fan for air supply pipes of the second embodiment.
【図５】同第３実施例の給気形パイプ用ファンの設置状
態を示す断面図FIG. 5 is a cross-sectional view showing an installed state of the air supply pipe fan of the third embodiment.
【図６】同第４実施例の給気形パイプ用ファンの設置状
態を示す断面図FIG. 6 is a cross-sectional view showing an installed state of a fan for air-supply type pipes according to the fourth embodiment.
【図７】同第４実施例のルーバを取外した状態を示す斜
視図FIG. 7 is a perspective view showing a state in which a louver of the fourth embodiment is removed.
【図８】従来の給気形パイプ用ファンの設置状態を示す
断面図FIG. 8 is a cross-sectional view showing an installation state of a conventional air supply pipe fan.
１ 羽根 ２ 電動機 ４ 室内側開口 ５ 室壁 ６ パイプ ７ フランジ部 ７Ａ フランジ部 ８ 第１の筒部 ９ 取付けばね １１ 電源端子部 １２ 屋外側開口 １３ リード線 １４ 開口溝 １５ 室内 ２０ 室内側端部 ２２ 閉鎖片 ２３ 第２の筒部 ２４ ルーバ ３０ 第２の筒部 ３１ ベルマウス形状 ３２ 羽根 ４０ 第２の筒部 ４１ 羽根 ５１ フィルター ５３ ルーバ ５４ 通気開口部 ５５ シャッター DESCRIPTION OF SYMBOLS 1 blade 2 electric motor 4 indoor side opening 5 chamber wall 6 pipe 7 flange part 7A flange part 8 first cylinder part 9 mounting spring 11 power supply terminal part 12 outdoor side opening 13 lead wire 14 opening groove 15 indoor 20 indoor side end 22 Closing piece 23 Second tubular portion 24 Louver 30 Second tubular portion 31 Bellmouth shape 32 Blade 40 Second tubular portion 41 Blade 51 Filter 53 Louver 54 Vent opening 55 Shutter
Claims (8)
室内側開口の外周には外方に延設したフランジ部を設け
た第１の筒部と、この第１の筒部の外周部に室壁あるい
は天井に設けられたパイプの内周面に押圧するように配
設された取付けばねと、前記電動機に取付けられる羽根
を覆う筒状で前記第１の筒部に着脱自在に結合される第
２の筒部と、前記フランジ部に取付けられて前記第１の
筒部の室内側開口を室内側から覆うルーバとを備え、前
記電動機および羽根を覆う本体部分を前記第１の筒部と
第２の筒部に分割して構成した給気形パイプ用ファン。1. A first tubular portion having a tubular shape having a length for accommodating an electric motor therein, having an outwardly extending flange portion provided on an outer periphery of an indoor side opening, and the first tubular portion. A mounting spring disposed so as to press the inner peripheral surface of a pipe provided on a chamber wall or a ceiling on the outer peripheral portion, and a tubular shape that covers a blade attached to the electric motor and is detachably attached to the first tubular portion. A second cylinder part to be coupled and a louver attached to the flange part to cover the indoor side opening of the first cylinder part from the indoor side are provided, and the main body part for covering the electric motor and the blade is provided with the first cylinder part. A fan for an air-supply type pipe configured by being divided into a tubular portion and a second tubular portion.
い込み側端部の近傍に位置する請求項１記載の給気形パ
イプ用ファン。2. The fan for the air-supply type pipe according to claim 1, wherein the indoor side end of the second tubular portion is located near the anti-suction side end of the blade.
周方向に拡がるベルマウス形状としプロペラ形の羽根を
設けた請求項１または２記載の給気形パイプ用ファン。3. The fan for an air supply pipe according to claim 1, wherein the blade suction side end of the second tubular portion is formed into a bell mouth shape that expands in the outer peripheral direction, and propeller-shaped blades are provided.
より小さく形成した請求項１または２記載の給気形パイ
プ用ファン。4. An air supply pipe fan according to claim 1, wherein the inner diameter of the second tubular portion is smaller than the inner diameter of the first tubular portion.
動機と電源端子部を接続するリード線を通すスリット形
状の開口溝を室内側方向に設け、第２の筒部の室内側端
部に設けた閉鎖片でリード線挿通後の前記開口溝を閉鎖
する構成とした請求項１、２、３または４記載の給気形
パイプ用ファン。5. A slit-shaped opening groove through which a lead wire connecting an electric motor and a power supply terminal portion is inserted is provided in the indoor side direction at an end of an outdoor side opening of the first tubular portion, and a second tubular portion of the second tubular portion is provided. The air supply pipe fan according to claim 1, 2, 3 or 4, wherein the opening groove after the lead wire is inserted is closed by a closing piece provided at the indoor side end portion.
た請求項１、２、３、４または５記載の給気形パイプ用
ファン。6. The fan for an air supply pipe according to claim 1, wherein one end of the mounting spring is fixed to the flange portion.
けた請求項１、２、３、４、５または６記載の給気形パ
イプ用ファン。7. The fan for an air supply pipe according to claim 1, 2, 3, 4, 5, or 6, wherein a filter is detachably provided on the flange portion.
出し方向が開放する複数のシャッターを設けた請求項
１、２、３、４、５、６または７記載の給気形パイプ用
ファン。8. The fan for an air supply pipe according to claim 1, wherein the ventilation opening of the louver is provided with a plurality of shutters which are open obliquely upward in the blowing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6267178A JP2997171B2 (en) | 1994-10-31 | 1994-10-31 | Fan for air supply type pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6267178A JP2997171B2 (en) | 1994-10-31 | 1994-10-31 | Fan for air supply type pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08128693A true JPH08128693A (en) | 1996-05-21 |
| JP2997171B2 JP2997171B2 (en) | 2000-01-11 |
Family
ID=17441197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6267178A Expired - Fee Related JP2997171B2 (en) | 1994-10-31 | 1994-10-31 | Fan for air supply type pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2997171B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303741A (en) * | 2006-05-11 | 2007-11-22 | Mitsubishi Electric Corp | Ventilation fan |
| KR20220089067A (en) * | 2020-12-21 | 2022-06-28 | 서효명 | Air Supply Apparatus With Easily Replaceable Filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4955940U (en) * | 1972-08-25 | 1974-05-17 | ||
| JPS5372755U (en) * | 1976-11-19 | 1978-06-17 | ||
| JPS5397548U (en) * | 1977-01-10 | 1978-08-08 | ||
| JPS53123855U (en) * | 1977-03-10 | 1978-10-02 | ||
| JPS61185935U (en) * | 1985-05-07 | 1986-11-20 |
-
1994
- 1994-10-31 JP JP6267178A patent/JP2997171B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4955940U (en) * | 1972-08-25 | 1974-05-17 | ||
| JPS5372755U (en) * | 1976-11-19 | 1978-06-17 | ||
| JPS5397548U (en) * | 1977-01-10 | 1978-08-08 | ||
| JPS53123855U (en) * | 1977-03-10 | 1978-10-02 | ||
| JPS61185935U (en) * | 1985-05-07 | 1986-11-20 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303741A (en) * | 2006-05-11 | 2007-11-22 | Mitsubishi Electric Corp | Ventilation fan |
| JP4691471B2 (en) * | 2006-05-11 | 2011-06-01 | 三菱電機株式会社 | Ventilation fan |
| KR20220089067A (en) * | 2020-12-21 | 2022-06-28 | 서효명 | Air Supply Apparatus With Easily Replaceable Filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2997171B2 (en) | 2000-01-11 |
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