JPS5819359Y2 - propeller fan - Google Patents
propeller fanInfo
- Publication number
- JPS5819359Y2 JPS5819359Y2 JP1977156043U JP15604377U JPS5819359Y2 JP S5819359 Y2 JPS5819359 Y2 JP S5819359Y2 JP 1977156043 U JP1977156043 U JP 1977156043U JP 15604377 U JP15604377 U JP 15604377U JP S5819359 Y2 JPS5819359 Y2 JP S5819359Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- hollow cylindrical
- mounting
- plate
- cylindrical mounting
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
本考案は、例えば分離型空気調和機の室外ユニット等上
に使用されるプロペラファンに関するもので、詳しくは
、羽根取付板外周に半径方向外方へ複数個の取付脚を延
設し、前記各取付脚に羽根を取付けるようにしたプロペ
ラファンに関し、その目的は、製造工程を複雑化するこ
となく、製造時において、特別な治具を用いなくても羽
根の角度を自由に調整して前記羽根を前記各取付脚に固
定できると共に、取付脚の亀裂発生防止、剛性の増大等
による強度アップを図り得るようにすることにある。[Detailed Description of the Invention] The present invention relates to a propeller fan used, for example, on an outdoor unit of a separate air conditioner. Specifically, the invention relates to a propeller fan that is used on an outdoor unit of a separate air conditioner, etc. The purpose of the propeller fan is to make it possible to adjust the angle of the blades without complicating the manufacturing process and without using special jigs during manufacturing. It is an object of the present invention to allow the blades to be fixed to each of the mounting legs by freely adjusting them, and also to prevent the occurrence of cracks in the mounting legs and increase strength by increasing rigidity.
即ち、従来、この種のプロペラファンにおいては、第５
図に示すように、鋼板製の羽根取付板１の外周に突出し
た平板状の取付脚３を捻り加工することによって、該取
付板１に取付けた羽根４が一定の角度に傾斜するように
構成されていたため、取付脚３の剛性を十分に確保する
ためには、板厚の大きい鋼板を必要とし、しかも捻り加
工によって取付脚３に亀裂が発生しやすい等、強度面で
の欠点があった。That is, conventionally, in this type of propeller fan, the fifth
As shown in the figure, by twisting the flat mounting legs 3 protruding from the outer periphery of the blade mounting plate 1 made of steel plate, the blade 4 attached to the mounting plate 1 is configured to be inclined at a certain angle. Therefore, in order to ensure sufficient rigidity of the mounting legs 3, a thick steel plate was required, and the mounting legs 3 were prone to cracking due to twisting, which had disadvantages in terms of strength. .
また、羽根４の角度は取付脚３の捻り加工の段階で決定
されてしまうため、羽根取付板１が汎用性に欠け、羽根
取付板１の製造後に、羽根角度を変更、調節する必要が
生じた場合には、治具を使用して各取付脚３の捻り角度
を修正するといった非能率な作業が強いられるものであ
った。In addition, since the angle of the blade 4 is determined at the stage of twisting the mounting leg 3, the blade mounting plate 1 lacks versatility, and it becomes necessary to change or adjust the blade angle after manufacturing the blade mounting plate 1. In this case, the user is forced to perform inefficient work such as correcting the twist angle of each mounting leg 3 using a jig.
本考案は、これらの従来欠点を一掃したものであって、
円形状平板部材と、その外周から等間隔にかつ半径方向
外方に突出する複数個の中空円筒状取付脚と、該中空円
筒状取付脚部分を除く前記円形状平板部材の外周縁を折
曲げて形成した補強リブとを一枚の鋼板で一体に形成し
て羽根取付板となす一方、鋼板製の羽根の取付部に、内
面が断面円弧状でその半径が前記中空円筒状取付脚の外
面までの半径よりや・大きい凹入部を形成し、前記羽根
取付板の中空円筒状取付脚に前記羽根の凹入部を嵌合し
、この嵌合部に溶接部を設けて前記羽根取付板と羽根と
を固定したこと特徴とするプロペラファンを提供せんと
するものである。The present invention eliminates these conventional drawbacks,
A circular flat plate member, a plurality of hollow cylindrical mounting legs protruding outward in the radial direction at equal intervals from the outer circumference thereof, and bending the outer peripheral edge of the circular flat plate member excluding the hollow cylindrical mounting leg portions. The blade mounting plate is made by integrally forming reinforcing ribs from a single steel plate, and the blade mounting portion made of the steel plate has an inner surface having an arcuate cross section and a radius of which is the outer surface of the hollow cylindrical mounting leg. A recessed portion slightly larger than the radius of It is an object of the present invention to provide a propeller fan characterized by the following:
本考案の実施例を第１図乃至第４図の図面に基づいて説
明すると、１はプロペラファンにおける羽根取付板、２
は該取付板１の中心部、３は前記羽根取付板１の外周に
、その半径方向外方に延設した複数個の中空円筒状取付
脚、４はこれら各中空円筒状取付脚３に取付けた羽根、
５は前記各中空円筒状取付脚３の中心部２外周の付根部
間にわたって形成した補強リブである。An embodiment of the present invention will be explained based on the drawings of FIGS. 1 to 4. 1 is a blade mounting plate in a propeller fan;
is the center of the mounting plate 1, 3 is a plurality of hollow cylindrical mounting legs extending radially outward on the outer periphery of the blade mounting plate 1, and 4 is attached to each of these hollow cylindrical mounting legs 3. feather,
Reference numeral 5 denotes a reinforcing rib formed between the base portions of the outer periphery of the center portion 2 of each of the hollow cylindrical mounting legs 3.
前記羽根取付板１は、第３図の２点鎖線で示すように一
枚の鋼板を裁断することによって、中心部２に軸孔６を
有する円形状平板部分７とその外周から半径方向外方に
突出する複数個の平板状の板部分８とから成る鋼板製素
材を作製し、これら各平板状板部分８を軸孔６軸芯に対
して垂直な軸芯をもつ円筒形状に曲げ加工して前記中空
円筒状取付脚３となし、同時に、前記中心部２０周縁を
板面に対して略直角に曲げ加工して前記補強リブ５とな
したものである。The blade mounting plate 1 is made by cutting a single steel plate as shown by the two-dot chain line in FIG. A steel plate material consisting of a plurality of flat plate portions 8 protruding from the shaft is produced, and each of these flat plate portions 8 is bent into a cylindrical shape having an axis perpendicular to the axis of the shaft hole 6. The hollow cylindrical mounting leg 3 is formed by bending the periphery of the center portion 20 at a substantially right angle to the plate surface to form the reinforcing rib 5.
而して、前記各羽根４は、中空円筒状取付脚３に対する
取付部位に内面を断面円弧状とした凹入部９を設け、該
凹入部９を前記中空円筒状付脚３に対して回動すること
により羽根４の取付角度θ（即ち羽根取付板１平面と羽
根４との角度）を自由に調整できるように、中空円筒状
取付脚３の外側に回動自由に嵌合し、所定角度θに調整
した後、凹入部９の開口両縁とこれに対接する筒状取付
脚３外面とを溶接したものである。Each of the blades 4 is provided with a recessed portion 9 whose inner surface has an arcuate cross section at the attachment portion to the hollow cylindrical mounting leg 3, and the recessed portion 9 can be rotated relative to the hollow cylindrical mounting leg 3. In order to freely adjust the mounting angle θ of the blade 4 (i.e., the angle between the plane of the blade mounting plate 1 and the blade 4), the blade 4 is rotatably fitted on the outside of the hollow cylindrical mounting leg 3 and set at a predetermined angle. After adjusting to θ, both edges of the opening of the recessed portion 9 and the outer surface of the cylindrical mounting leg 3 facing thereto are welded.
なお１０は羽根取付板１の中心部２に溶接したボスであ
る。Note that 10 is a boss welded to the center portion 2 of the blade mounting plate 1.
以上のように、本考案は、円形状平板部分と、複数個の
取付脚と補強リブとから戊る羽根取付板を一枚の鋼板か
ら形成して羽根取付板となし、この羽根取付板の外周に
設ける取付脚を中空円筒状となす一方、各羽根には、取
付部位に前記中空円筒状取付脚を受入れる凹入部を設け
、該凹入部の内面を断面円弧状にして中空円筒状取付脚
に回動自由に嵌合しこの嵌合部に溶接部を設けて溶接に
より固定するごとくしたことにより、各羽根を筒状取付
脚に対し角度調整自由に取付けるようにしたので、前記
羽根取付板の加工が容易に行なえ、その製造工程が簡単
でありながら、前記取付脚の強度を大きくでき、その上
平板状の取付脚に捻り加工を施して羽根の角度をつける
場合のような捻り加工による亀裂発生の虞れがなく、か
つ、筒状であるが故に取付脚の剛性が大きくなって板厚
の割に大きな強度が得られる等、強度面での利点が得ら
れるのみならず、製造作業時に各羽根を中空円筒状取付
脚に対して回動することにより、何ら特別な治具を用い
なくても、羽根角度を自由に調整した上で溶接固定でき
る利点がある。As described above, in the present invention, a blade mounting plate is formed by forming a blade mounting plate formed from a circular flat plate portion, a plurality of mounting legs, and reinforcing ribs from a single steel plate, and the blade mounting plate is The mounting leg provided on the outer periphery is formed into a hollow cylindrical shape, and each blade is provided with a recessed portion for receiving the hollow cylindrical mounting leg at the mounting portion, and the inner surface of the recessed portion has an arcuate cross section to form the hollow cylindrical mounting leg. By fitting the blades so that they can rotate freely, and by providing a welding part at this fitting part and fixing them by welding, each blade can be attached to the cylindrical mounting leg with the freedom to adjust the angle. Although the manufacturing process is simple, the strength of the mounting leg can be increased, and in addition, it can be easily processed by twisting processing such as when twisting a flat mounting leg to adjust the angle of the blade. There is no risk of cracking, and since the mounting legs are cylindrical, the rigidity of the mounting legs is high, providing great strength relative to the plate thickness. By rotating each blade with respect to the hollow cylindrical mounting leg, there is an advantage that the blade angle can be freely adjusted and then fixed by welding without using any special jig.
換言すれば、羽根の取付は作業の時点で、羽根角度を自
由に設定できるのであり、羽根取付板汎用性が増し、量
産によるコストダウンを図り得るのである。In other words, the blade angle can be freely set during the blade installation process, increasing the versatility of the blade mounting plate and reducing costs through mass production.
第１図は本考案の一実施例を示すプロペラファンの正面
図、第２図は第１図のＩＩ −ＩＩ線断面図、第３図は
羽根取付板の拡大正面図、第４図は第３図のＩＶ−ＩＶ
線断面図、第５図は従来例を示す正面図である。
１・・・・・・羽根取付板、２・・・・・・中心部、３
・・・・・・中空円筒状取付脚、４・・・・・・羽根、
９・・・・・・凹入部。Fig. 1 is a front view of a propeller fan showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line II-II of Fig. 1, Fig. 3 is an enlarged front view of the blade mounting plate, and Fig. 4 is a IV-IV in Figure 3
A line sectional view and FIG. 5 are front views showing a conventional example. 1...Blade mounting plate, 2...Center, 3
...Hollow cylindrical mounting leg, 4...Blade,
9...Recessed part.
Claims (1)
向外方に突出する複数個の中空円筒状取付脚３・・・・
・・と、該中空円筒状取付脚３・・・・・・部分を除く
前記円形状平板部材７の外周縁を折曲げて形成した補強
リブ５・・・・・・とを一枚の鋼板で一体に形成して羽
根取付板１となす一方、鋼板製の羽根４・・・・・・の
取付部に、内面が断面円弧状でその半径が前記中空円筒
状取付脚３・・・・・・の外面までの半径よりや・大き
い凹入部９を形成し、前記羽根取付板１の中空円筒状取
付脚３・・・・・・に前記羽根４・・・・・・の凹入部
９を嵌合し、この嵌合部に溶接部を設けて前記羽根取付
板１と羽根４・・・・・・とを固定したことを特徴とす
るプロペラファン。A circular flat plate member 7 and a plurality of hollow cylindrical mounting legs 3 protruding outward in the radial direction at equal intervals from the outer circumference thereof.
. . . and the reinforcing rib 5 formed by bending the outer peripheral edge of the circular flat plate member 7 excluding the hollow cylindrical mounting leg 3 . . . are made of a single steel plate. The blade mounting plate 1 is formed integrally with the steel plate blade 4, and the hollow cylindrical mounting leg 3, whose inner surface has an arcuate cross section and whose radius is the mounting portion of the steel plate blade 4... A recessed portion 9 slightly larger than the radius up to the outer surface of the blade 4 is formed in the hollow cylindrical mounting leg 3 of the blade mounting plate 1. A propeller fan characterized in that the blade mounting plate 1 and the blades 4 are fixed by fitting together and providing a welded part in the fitting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977156043U JPS5819359Y2 (en) | 1977-11-19 | 1977-11-19 | propeller fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977156043U JPS5819359Y2 (en) | 1977-11-19 | 1977-11-19 | propeller fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5481106U JPS5481106U (en) | 1979-06-08 |
| JPS5819359Y2 true JPS5819359Y2 (en) | 1983-04-20 |
Family
ID=29145641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977156043U Expired JPS5819359Y2 (en) | 1977-11-19 | 1977-11-19 | propeller fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819359Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5167405U (en) * | 1974-11-22 | 1976-05-28 |
-
1977
- 1977-11-19 JP JP1977156043U patent/JPS5819359Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5481106U (en) | 1979-06-08 |
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