JP2727664B2 - Blower rotating fan - Google Patents
Blower rotating fanInfo
- Publication number
- JP2727664B2 JP2727664B2 JP15782089A JP15782089A JP2727664B2 JP 2727664 B2 JP2727664 B2 JP 2727664B2 JP 15782089 A JP15782089 A JP 15782089A JP 15782089 A JP15782089 A JP 15782089A JP 2727664 B2 JP2727664 B2 JP 2727664B2
- Authority
- JP
- Japan
- Prior art keywords
- fan
- thickness
- fixing
- square hole
- side plate
- 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.)
- Expired - Lifetime
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電気掃除機等に使用される送風機の回転フ
ァンに関するものである。Description: TECHNICAL FIELD The present invention relates to a rotating fan of a blower used for an electric vacuum cleaner or the like.
従来の技術 従来のこの種の回転ファンは、モータの出力軸に直結
して高速回転させて、ファン翼により区切られた通路に
空気を通して風量と圧力を得るようになっている。2. Description of the Related Art A conventional rotary fan of this type is directly connected to an output shaft of a motor and is rotated at high speed to obtain air volume and pressure by passing air through passages separated by fan blades.
以下図面を参照しながら、上述したような従来の送風
機の回転ファンについて説明する。Hereinafter, a conventional rotary fan of a blower as described above will be described with reference to the drawings.
第４図は従来の送風機の回転ファンの分解した斜視図
である。第４図において、傘形のファン側板１と平板の
ファン側板２にはファン翼３の爪４を挿入する角穴５が
設けてあり、ファン翼３を複数並べてファン側板1,2で
挟持し、爪４の先端を加圧変形させて固定する構成とな
っている。送風機の出力軸をファン側板２の中央穴６に
挿入固定させ、出力軸を回転させることにより回転ファ
ンが回転する。空気はファン側板１の吸込み口７より流
入し、ファン翼３によって作られた通路内を通って外周
へ吐き出される。FIG. 4 is an exploded perspective view of a rotary fan of a conventional blower. In FIG. 4, the umbrella-shaped fan side plate 1 and the flat fan side plate 2 are provided with square holes 5 into which the claws 4 of the fan blades 3 are inserted, and a plurality of fan blades 3 are arranged and sandwiched between the fan side plates 1 and 2. The configuration is such that the tip of the claw 4 is deformed under pressure and fixed. The output shaft of the blower is inserted and fixed in the central hole 6 of the fan side plate 2, and the rotating fan rotates by rotating the output shaft. The air flows in from the suction port 7 of the fan side plate 1 and is discharged to the outer periphery through the passage formed by the fan blades 3.
発明が解決しようとする課題 しかしながら上記のような構成では、ファン側板１の
角穴５はファン翼３の爪４より大きい角穴とする必要が
ある為、かしめ固定後においても角穴５とファン翼３と
の間に隙間が残る。空気は回転ファンの内部を通過して
いる間にこの隙間より流れ出すことがある。この空気の
漏れは圧力低下となり空気出力が低下するという問題が
あった。However, in the above configuration, since the square hole 5 of the fan side plate 1 needs to be larger than the claw 4 of the fan blade 3, the square hole 5 and the fan are fixed even after the caulking and fixing. A gap remains with the wing 3. Air may flow out of this gap while passing through the interior of the rotating fan. This leakage of air has a problem that the pressure is reduced and the air output is reduced.
本発明は上記欠点に鑑み、回転ファンの形状を改良す
ることにより、効率の高い送風機の回転ファンを提供す
るものである。The present invention has been made in view of the above-described drawbacks, and provides a highly efficient rotating fan of a blower by improving the shape of the rotating fan.
課題を解決するための手段 この目的を達成するために本発明の回転ファンは、フ
ァン翼の固定用爪の厚みをファン翼本体の板の厚みより
薄くして、ファン側板の角穴のファン翼板厚方向の寸法
をファン翼本体の板厚と同程度または以下とし、固定用
爪を挿入して加圧変形させることにより、角穴の隙間を
なくした回転ファンを構成するものである。Means for Solving the Problems In order to achieve this object, a rotating fan according to the present invention has a fan blade fixing claw having a thickness smaller than that of a plate of a fan blade body, and a fan blade having a square hole in a fan side plate. A rotary fan in which the gap in the square hole is eliminated by making the dimension in the thickness direction equal to or less than the thickness of the fan blade main body, inserting a fixing claw and deforming under pressure.
作用 本発明は上記した構成によって、ファン側板の角穴は
ファン翼の固定用爪を挿入した時にファン翼の板の厚み
によって隙間が小さくなる。よって、空気が回転ファン
の内部を流れる時に漏れが生じにくくなるため、大きな
空気出力が得られる。According to the present invention, the gap is reduced by the thickness of the fan blade plate when the fixing hole of the fan blade is inserted into the square hole of the fan side plate. As a result, leakage hardly occurs when air flows inside the rotary fan, so that a large air output can be obtained.
実施例 以下本発明の一実施例の送風機の回転ファンについ
て、図面を参照しながら説明する。Embodiment Hereinafter, a rotary fan of a blower according to an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例における送風機の回転ファ
ンの分解図であり、ファン翼は１枚のみ図示している。
第１図の1,2はファン側板、３はファン翼、４はファン
翼の固定用爪、５は固定用爪を挿入する角穴であり、従
来例と同一名称には同一番号を付している。FIG. 1 is an exploded view of a rotating fan of a blower according to an embodiment of the present invention, and shows only one fan blade.
1, 1 and 2 are fan side plates, 3 is a fan blade, 4 is a fixing nail for fixing the fan blade, 5 is a square hole for inserting the fixing nail, and the same name as the conventional example is given the same number. ing.
第２図はファン側板１の角穴５にファン翼３の固定用
爪４を挿入した状態の断面図で、かしめ加工前の状態で
ある。第２図のT1は固定用爪の厚み、Ｗは角穴の幅、T2
はファン翼の板厚であり、T1＜Ｗ≦T2の関係がある。FIG. 2 is a cross-sectional view showing a state in which the fixing claws 4 of the fan blades 3 are inserted into the square holes 5 of the fan side plate 1, which is a state before swaging. T 1 of the second figure the thickness of the fixing nail, W is the width of the square hole, T 2
Is the thickness of the fan blades, and has a relationship of T 1 <W ≦ T 2 .
第３図はかしめ固定後の断面図である。 FIG. 3 is a sectional view after swaging.
以上のようにファン翼の固定用爪の厚みT1をファン翼
の板厚T2より薄くして、ファン側板の角穴のファン翼板
厚方向の寸法をファン翼本体の板厚T2以下Ｗとすること
により、接合部の角穴の隙間が小さくなり回転ファンか
らの空気の漏れが生じにくくなる。Above the thickness T 1 of the fixing claws of the fan blades are thinner than the plate thickness T 2 of the fan blades, the fan TsubasabanAtsu dimension of the square holes of the fan shroud fan blade body having a thickness T 2 or less By setting it to W, the gap between the square holes at the joint is reduced, and air leakage from the rotating fan is less likely to occur.
発明の効果 以上のように本発明は、回転ファンのファン翼の固定
用爪の厚みをファン翼の板厚より薄くして、ファン側板
の角穴の幅をファン翼の板厚以下とし、固定用爪を角穴
に挿入してかしめ固定することにより、角穴の隙間を小
さくすることができ、空気が回転ファンの内部を通過す
る時に漏れが生じにくくなり、大きな空気出力が得られ
る。Effect of the Invention As described above, the present invention reduces the thickness of the fixing claws of the fan blades of the rotating fan to be smaller than the thickness of the fan blades, and makes the width of the square hole of the fan side plate equal to or less than the thickness of the fan blades. By inserting the nail into the square hole and caulking and fixing, the gap between the square holes can be reduced, so that leakage hardly occurs when air passes through the inside of the rotary fan, and a large air output can be obtained.
第１図は本発明の一実施例における送風機の回転ファン
の分解した斜視図、第２図はそのファン側板とファン翼
との接合部のかしめ加工前の断面図、第３図は接合部の
かしめ加工後の断面図、第４図は従来の送風機の回転フ
ァンの分解した斜視図である。 １……ファン側板、２……ファン側板、３……ファン
翼、４……固定用爪、５……角穴。FIG. 1 is an exploded perspective view of a rotating fan of a blower according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a joint between a fan side plate and a fan blade before caulking, and FIG. FIG. 4 is a cross-sectional view after swaging, and FIG. 4 is an exploded perspective view of a rotary fan of a conventional blower. 1 ... fan side plate, 2 ... fan side plate, 3 ... fan blade, 4 ... fixing claw, 5 ... square hole.
Claims (1)
と、前記ファン翼の固定用爪を挿入する角穴を設けた２
枚のファン側板を備え、前記ファン翼の固定用爪の厚み
をファン翼本体の板厚よりも薄くして、前記ファン側板
の固定用爪を挿入する角穴のファン翼の板厚方向の寸法
をファン翼本体の板厚と同程度または以下とし、２枚の
ファン側板との間に狭持して、固定してなる送風機の回
転ファン。A plurality of fan blades provided with a plurality of fixing claws; and a square hole provided with a square hole for inserting the fixing claws of the fan blades.
A plurality of fan side plates, wherein the thickness of the fixing claws of the fan blades is made smaller than the plate thickness of the fan blade main body, and the square holes into which the fixing claws of the fan side plates are inserted are measured in the thickness direction of the fan blades. Is about the same as or less than the thickness of the fan blade main body, and is sandwiched and fixed between two fan side plates and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15782089A JP2727664B2 (en) | 1989-06-20 | 1989-06-20 | Blower rotating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15782089A JP2727664B2 (en) | 1989-06-20 | 1989-06-20 | Blower rotating fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0323395A JPH0323395A (en) | 1991-01-31 |
| JP2727664B2 true JP2727664B2 (en) | 1998-03-11 |
Family
ID=15658024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15782089A Expired - Lifetime JP2727664B2 (en) | 1989-06-20 | 1989-06-20 | Blower rotating fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2727664B2 (en) |
-
1989
- 1989-06-20 JP JP15782089A patent/JP2727664B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0323395A (en) | 1991-01-31 |
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