JPS58185997A - Propeller and cylindrical multivane fan - Google Patents

Propeller and cylindrical multivane fan

Info

Publication number
JPS58185997A
JPS58185997A JP6722282A JP6722282A JPS58185997A JP S58185997 A JPS58185997 A JP S58185997A JP 6722282 A JP6722282 A JP 6722282A JP 6722282 A JP6722282 A JP 6722282A JP S58185997 A JPS58185997 A JP S58185997A
Authority
JP
Japan
Prior art keywords
fan
blade
beads
propeller
vane
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.)
Pending
Application number
JP6722282A
Other languages
Japanese (ja)
Inventor
Mineichi Akaishi
赤石　峰一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AKAISHI KINZOKU KOGYO KK
Original Assignee
AKAISHI KINZOKU KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AKAISHI KINZOKU KOGYO KK filed Critical AKAISHI KINZOKU KOGYO KK
Priority to JP6722282A priority Critical patent/JPS58185997A/en
Publication of JPS58185997A publication Critical patent/JPS58185997A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To reinforce a vane as well as to obtain its smooth/rotation by forming beads in circular arc or straight line form on a part of a vane along the direction of rotation. CONSTITUTION:Circular-arc formed beads 2 are provided on vanes 1 which form a fan in such a manner that the form of a bead is in accordance with the rotational locus of the corresponding point on the vane. On the other hand, beads 2 are provided at more than one place in the same manner as the above on vanes 3 along their longitudinal or perpendicular to rotational direction. Thus, vanes of thin plating are reinforced by beads, while not only the beads receive no wind pressure resistance but they serve in forming stationary and uniform wind flow loca, eliminating vane vibration and noise.

Description

【発明の詳細な説明】 本発明は金属製又はプラスチックの如き合成樹脂製のプ
ロペラファン並びに円筒形多翼ファンに拘らず、翼片の
一部にファン回転状態に応じて突条であるビードを成形
したファンの改良に関し、その目的とする所は翼片を補
強すると共にファンとしての理想的な回転を行なうよう
ｌ− にしたものである。Detailed Description of the Invention The present invention is applicable to propeller fans made of metal or synthetic resin such as plastic, and cylindrical multi-blade fans. Regarding the improvement of the molded fan, the objective is to strengthen the blades and to make them l-shaped so that they rotate ideally as a fan.

即ち一例である図面に付いて説明すると、第１図はプロ
ペラファント゛で、ファン成形の翼片（１）に回転方向
に対し従順する円１孤状のビードｆ２１を設は又第３図
は多翼ファン１２′の円筒形成形前の展開図で翼片（３
１の縦方向即ち回転方向に対し、複数個所にビード（２
１′ｆ！ｒ：同−状態にて夫々設けたものでル）ろ。更
に第５図のものは同じく多翼ファンの翼片（３）で回転
方向前端側（４）を金属製の場合は略流線形状に曲折成
形し又プラスチック合成樹脂の場合は同上の如き形状に
成形するものである。That is, to explain the drawings as an example, Fig. 1 shows a propeller fan, in which a fan-shaped blade (1) is provided with a circular arc-shaped bead f21 that follows the direction of rotation, and Fig. 3 shows a propeller fan. In the developed view of the wing fan 12' before its cylindrical formation, the wing pieces (3
Beads (2
1'f! r: Those provided in the same condition. Furthermore, the one in Figure 5 is the same blade piece (3) of a multi-blade fan, and the front end side (4) in the rotation direction is bent into a substantially streamlined shape if it is made of metal, or the same shape as above if it is made of plastic synthetic resin. It is molded into

本発明は上記の如（プロペラファンに於ても、また円筒
形多翼ファンに於ても、夫々回転方向に沿って翼片の一
部はビード（２）を設けたもので、そのビードによって
薄板状の翼片は補強されると共に回転に対しビードは風
圧の抵抗を受けることがないのみならず一つの風流軌跡
を得ることによって翼片の振動を防止し、騒音も解消す
る理想的な回転を行なうことができる。又多翼２− ファンの翼片は従来のものは第６図のように薄い金属片
から成っている。そのため風圧に弱（回速回転に対［２
振動するばかりでなく騒音を発する等の欠点かあった。The present invention is as described above (both in a propeller fan and in a cylindrical multi-blade fan, a part of each blade is provided with a bead (2) along the direction of rotation, and the bead is The thin plate-like blades are reinforced, and the bead does not receive any resistance from wind pressure during rotation, but also achieves a single wind flow trajectory, which prevents vibration of the blades and eliminates noise.Ideal rotation. In addition, conventional multi-blade 2-fan blades are made of thin metal pieces as shown in Figure 6. Therefore, they are weak against wind pressure (they are weak against rotational speed [2]).
There were drawbacks such as not only vibration but also noise.

この欠点を除去するため第５図の如く回転による風子を
受けろ先端側を曲折して略流線形状に成形したので翼片
目体が薄片ながら強靭となることは当然で、しかもその
上上記の如く風圧を受ける先端側が流線形となっている
ので風ぎれがよく、従って騒音を発することもなく回転
も円滑に行なわれファンとしての性能は充分満足するも
のが得られる。In order to eliminate this drawback, as shown in Figure 5, the tip side that receives the wind generated by rotation is bent and formed into a substantially streamlined shape, so it is natural that the wing eye body becomes strong even though it is thin. Since the tip side that receives wind pressure has a streamlined shape, there is good wind flow, and the fan rotates smoothly without making any noise, resulting in fully satisfactory performance as a fan.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明実施の一例を示したもので、第１図はプロ
ペラファンの平面図で翼片を適度に曲折成形する完成前
のもの、第２図は同上Ａ　−Ａ線に於ける断面図、第３
図は多翼ファンの一部展開平面図、第４図は同上Ｂ−Ｈ
緋に於ける断面図、第５図は多翼ファン構成に要する一
枚の翼片の斜面図で回転による風圧側の先端部を流線形
に成形したもの、第６図は従来の翼片の３− 斜面図である。 尚図面に於て（１）・　プロペラファンの翼片（２）−
翼片に設けたビード に３）・・・多翼ファンの翼片 ４−The drawings show an example of the implementation of the present invention, and Fig. 1 is a plan view of a propeller fan before the blade is completed by appropriately bending the blades, and Fig. 2 is a cross-sectional view taken along the line A-A of the same. , 3rd
The figure is a partially expanded plan view of a multi-blade fan, and Figure 4 is B-H as above.
Figure 5 is a cross-sectional view of a single blade required for a multi-blade fan configuration, with the tip on the wind pressure side due to rotation shaped into a streamlined shape, and Figure 6 is a diagram of a conventional blade. 3- It is a slope diagram. In addition, in the drawing (1), propeller fan blade (2) -
3)...Blade 4- of multi-blade fan on the bead provided on the blade

Claims (2)

【特許請求の範囲】[Claims] （１）プロペラファン並びに円筒形多翼ファンに於て、
翼片の一部に回転方向に沿って円弧状又は直線状のビー
ドを成形して翼片を補強すると共に円滑な回転を行なう
ようにしたことを特徴とするプロペラ並びに円筒形多翼
ファン。(1) In propeller fans and cylindrical multi-blade fans,
A propeller and a cylindrical multi-blade fan, characterized in that a circular or linear bead is formed on a part of the blade along the rotation direction to reinforce the blade and ensure smooth rotation. （２）金属製プロペラファン並びに円筒形多翼ファンに
於て、翼片の回転方向側の先端部を弧状に曲折して流線
形状に成形したことを特徴とする特許請求の範囲第１項
記載のプロペラ並びに円筒形多翼ファン。(2) In a metal propeller fan or a cylindrical multi-blade fan, the tips of the blades on the rotation direction side are bent in an arc shape to form a streamlined shape. The described propeller and cylindrical multi-blade fan.
JP6722282A 1982-04-23 1982-04-23 Propeller and cylindrical multivane fan Pending JPS58185997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6722282A JPS58185997A (en) 1982-04-23 1982-04-23 Propeller and cylindrical multivane fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6722282A JPS58185997A (en) 1982-04-23 1982-04-23 Propeller and cylindrical multivane fan

Publications (1)

Publication Number Publication Date
JPS58185997A true JPS58185997A (en) 1983-10-29

Family

ID=13338661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6722282A Pending JPS58185997A (en) 1982-04-23 1982-04-23 Propeller and cylindrical multivane fan

Country Status (1)

Country Link
JP (1) JPS58185997A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02305399A (en) * 1989-05-19 1990-12-18 Matsushita Electric Ind Co Ltd Fan device
US5348445A (en) * 1993-12-08 1994-09-20 Cheng-Chi Hung Fan blade

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02305399A (en) * 1989-05-19 1990-12-18 Matsushita Electric Ind Co Ltd Fan device
US5348445A (en) * 1993-12-08 1994-09-20 Cheng-Chi Hung Fan blade

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