JP3381021B2 - Blower fan - Google Patents
Blower fanInfo
- Publication number
- JP3381021B2 JP3381021B2 JP24362197A JP24362197A JP3381021B2 JP 3381021 B2 JP3381021 B2 JP 3381021B2 JP 24362197 A JP24362197 A JP 24362197A JP 24362197 A JP24362197 A JP 24362197A JP 3381021 B2 JP3381021 B2 JP 3381021B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- shaft hole
- connecting plate
- blower fan
- fan
- 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 - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、送風ファンに係
り、さらに詳しくは、電動機の振動がファン本体に伝わ
るのを防止するための弾性体を備えた送風ファンに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower fan, and more particularly to a blower fan having an elastic body for preventing vibration of an electric motor from being transmitted to a fan body.
【０００２】[0002]
【従来の技術】図４は実開平２−１３１９４号公報に開
示された送風ファンの要部の断面図である。図におい
て、３１はファン本体、３２は中心部に貫通穴が設けら
れた凹部３３を有するファン本体３１の端板である。３
５はモータ（図示せず）の出力軸に嵌合して固定される
軸穴３６を有する軸穴部材、３７はリング状の平板かな
る連結板３８がインサートされ、軸穴部材３５と一体成
形されたゴムの如き弾性体で、これらにより軸部３４を
構成する。2. Description of the Related Art FIG. 4 is a sectional view of a main part of a blower fan disclosed in Japanese Utility Model Laid-Open No. 2-13194. In the figure, 31 is a fan main body, and 32 is an end plate of the fan main body 31 having a recess 33 having a through hole in the center. Three
Reference numeral 5 denotes a shaft hole member having a shaft hole 36 which is fitted and fixed to an output shaft of a motor (not shown), and 37, a connecting plate 38 made of a ring-shaped flat plate is inserted and integrally molded with the shaft hole member 35. The shaft portion 34 is constituted by these elastic bodies such as rubber.
【０００３】このようにして一体化された軸穴部材３５
と弾性体３７からなる軸部３４は、端板３２の凹部３３
内に配設されて連結板３８の外周部をねじ３９により端
板３２に固定される。そして、モータの出力軸に軸部３
４の軸穴３６を嵌合して固定し、ファン本体１をモータ
に装着する。なお、この場合、弾性体３７を直接端板３
２に固定してもよいが、弾性体３７に強度上の制約があ
るため、連結板３８を介して固定するようにしている。The shaft hole member 35 integrated in this way
The shaft portion 34 including the elastic body 37 and the elastic body 37 is provided in the recess 33 of the end plate 32.
The outer peripheral portion of the connecting plate 38 disposed inside is fixed to the end plate 32 by screws 39. The shaft portion 3 is attached to the output shaft of the motor.
The shaft hole 36 of No. 4 is fitted and fixed, and the fan main body 1 is attached to the motor. In this case, the elastic body 37 is directly connected to the end plate 3
However, since the elastic body 37 has a restriction on strength, it is fixed via the connecting plate 38.
【０００４】上記のような送風ファンは、モータを駆動
してこれに連結されたファン本体３１を回転し、送風す
る。このとき、モータの駆動によりその振動がファン本
体３１に伝わって騒音を発するため、振動の伝播経路で
ある軸穴部材３５と端板３２との間に弾性体３７を介装
し、モータの振動を弾性体３７に吸収させ、ファン本体
３１に伝わるのを軽減又は防止している。The blower fan as described above drives a motor to rotate the fan main body 31 connected to the motor to blow air. At this time, since the vibration is transmitted to the fan main body 31 by driving the motor to generate noise, the elastic body 37 is interposed between the shaft hole member 35 and the end plate 32, which is the propagation path of the vibration, and the vibration of the motor is generated. Is absorbed by the elastic body 37 to reduce or prevent transmission to the fan body 31.
【０００５】[0005]
【発明が解決しようとする課題】上記のような従来の送
風ファンの軸部３４においては、軸穴部材３５の軸穴３
６と連結板３８との直角度がなんら規制されていないた
め、弾性体３７の成形後の収縮ひずみにより弾性体３７
が変形すると、軸穴部材３５の軸穴３６と連結板３８と
の直角度に狂いが生じ、モータの出力軸にファン本体３
１を装着したときに端板３２の面ぶれが大きくなり、フ
ァン本体３１に大きな振動が発生することがあった。In the shaft portion 34 of the conventional blower fan as described above, the shaft hole 3 of the shaft hole member 35 is used.
Since the perpendicularity between 6 and the connecting plate 38 is not restricted at all, the elastic body 37 is contracted by the contraction strain after molding.
Is deformed, the squareness between the shaft hole 36 of the shaft hole member 35 and the connecting plate 38 is deviated, and the fan main body 3 is attached to the output shaft of the motor.
When the No. 1 was attached, the surface runout of the end plate 32 became large, and large vibrations were sometimes generated in the fan body 31.
【０００６】本発明は、上記の課題を解決するためにな
されたもので、弾性体の成形後においても軸穴部材の軸
穴に対する連結板の直角度を高精度に保持することので
きる軸部を備えた送風ファンを得ることを目的としたも
のである。The present invention has been made to solve the above-mentioned problems, and a shaft portion capable of maintaining the perpendicularity of the connecting plate with respect to the shaft hole of the shaft hole member with high accuracy even after the elastic body is molded. The purpose is to obtain a blower fan equipped with.
【０００７】[0007]
【課題を解決するための手段】本発明に係る送風ファン
は、リング状の平板からなる連結板に軸穴を有する軸穴
部材を一体に連結してなる軸部を有し、該軸部の外周縁
をファン本体の端板に固定してなる送風ファンにおい
て、前記軸穴部材に軸穴と直交する鍔部を設け、この鍔
部と平行に前記連結板を配設し、前記軸穴部材と連結板
の内周縁とを弾性体により一体に連結成形して軸部を構
成し、該軸部の外周縁を前記ファン本体の端板と一体成
形により固定したものである。A blower fan according to the present invention has a shaft portion formed by integrally connecting a shaft hole member having a shaft hole to a connecting plate made of a ring-shaped flat plate. In a blower fan having an outer peripheral edge fixed to an end plate of a fan body, a flange portion orthogonal to the shaft hole is provided in the shaft hole member, and the connecting plate is arranged in parallel with the flange portion. And an inner peripheral edge of the connecting plate are integrally connected and molded by an elastic body to form a shaft portion, and an outer peripheral edge of the shaft portion is fixed to the end plate of the fan body by integral molding.
【０００８】上記の送風ファンにおいて、弾性体の連結
板の下部と上部の厚さをほぼ等しく形成した。また、ダ
イキャスト成形された軸穴部材の鍔部の外周端面を切削
仕上げした。In the blower fan described above, the thickness of the lower part and the upper part of the connecting plate of the elastic body is made substantially equal. Further, the outer peripheral end surface of the flange portion of the die-cast molded shaft hole member was cut and finished.
【０００９】[0009]
【発明の実施の形態】図１は本発明の一実施の形態に係
る送風ファンの縦断面図である。図において、１はファ
ン本体、３はファン本体１の端板２の中心部に結合さ
れ、モータ２３の出力軸２４に嵌入されて固定される軸
部で、これらファン本体１、モータ２３等は、吸気口２
１及び排気口２２を有するケーシング２０内に収容され
ている。1 is a vertical sectional view of a blower fan according to an embodiment of the present invention. In the figure, 1 is a fan body, 3 is a shaft portion which is connected to the central portion of the end plate 2 of the fan body 1, and is fitted and fixed to an output shaft 24 of a motor 23. These fan body 1, motor 23, etc. , Inlet 2
1 and an exhaust port 22 are housed in a casing 20.
【００１０】図２は図１の軸部３の拡大図、図３は図２
の軸穴部材の断面図、平面図、及び弾性体の断面図で、
１はファン本体、２はその端板、３は端板２に設けた軸
部である。軸部３において、５は円筒状の本体部６と鍔
部７とからなる断面ほぼ凸字状の軸穴部材で、中心部に
回り止め用の突条１０を有する軸穴９が設けられてい
る。FIG. 2 is an enlarged view of the shaft portion 3 of FIG. 1, and FIG.
A sectional view of the shaft hole member, a plan view, and a sectional view of the elastic body,
Reference numeral 1 is a fan main body, 2 is an end plate thereof, and 3 is a shaft portion provided on the end plate 2. In the shaft portion 3, reference numeral 5 is a shaft hole member having a substantially convex cross section, which is composed of a cylindrical main body portion 6 and a flange portion 7, and is provided with a shaft hole 9 having a protrusion 10 for preventing rotation in the center thereof. There is.
【００１１】軸穴部材５は金属材料によりダイキャスト
成形されたもので、鍔部７の上面は軸穴９の中心線に対
して直角に形成されている。また、成形時の湯口は鍔部
７の外周端面８に設けられており、湯口カットの際に外
周端面８も切削仕上げしているので、鍔部７の外周端面
８は、ダイキャストの鋳放し状態に比べて高い寸法精度
になっている。The shaft hole member 5 is die cast from a metal material, and the upper surface of the collar portion 7 is formed at a right angle to the center line of the shaft hole 9. Further, the sprue at the time of forming is provided on the outer peripheral end face 8 of the collar part 7, and the outer peripheral end face 8 is also cut and finished at the time of cutting the sprue, so the outer peripheral end face 8 of the collar part 7 is as-cast by die casting. The dimensional accuracy is higher than the state.
【００１２】１１はゴムの如き弾性材からなり、金型に
より軸穴部材５の本体部６の外周及び鍔部７の上面に充
填されて一体に成形された弾性体で、外周の厚さ方向
（図の上下方向）の中央部には、成形時にリング状の平
板からなる連結板１５の内周側がインサートされてい
る。なお、連結板１５の下部１２（鍔７側）と上部１３
の厚さｔ1 ，ｔ2 はほぼ等しく形成されており、また、
連結板１５は鍔部７の上面と平行に保持されている。そ
して、ファン本体１を成形加工する際に軸部３を端板２
の中心部に配置し、連結板１５の外周側を端板２にイン
サートして一体に結合される。Reference numeral 11 denotes an elastic body which is made of an elastic material such as rubber and is integrally molded by filling the outer periphery of the main body portion 6 of the shaft hole member 5 and the upper surface of the flange portion 7 with a mold, and the thickness direction of the outer periphery. The inner peripheral side of the connecting plate 15 made of a ring-shaped flat plate is inserted at the center part (up and down direction in the drawing) at the time of molding. In addition, the lower part 12 (the flange 7 side) and the upper part 13 of the connecting plate 15
Are formed to have substantially the same thickness t 1 and t 2 , and
The connecting plate 15 is held parallel to the upper surface of the flange 7. When the fan body 1 is molded, the shaft portion 3 is attached to the end plate 2
It is arranged in the central portion of, and the outer peripheral side of the connecting plate 15 is inserted into the end plate 2 and integrally coupled.
【００１３】このように構成したファン本体１は、軸部
３の軸穴９をモータ２３の出力軸２４に嵌合して固定さ
れ、送風ファンを構成する。そして、モータ２３を駆動
してファン本体１を回転し、吸気口２１から取込んだ空
気を排気口２２から外部へ送風する。このとき、モータ
２３の駆動によって生ずる振動は弾性体１１に吸収され
てファン本体１には伝わらず、騒音の発生を防止するこ
とができる。The fan body 1 thus constructed is fixed by fitting the shaft hole 9 of the shaft portion 3 into the output shaft 24 of the motor 23 to form a blower fan. Then, the motor 23 is driven to rotate the fan body 1, and the air taken in from the intake port 21 is blown to the outside from the exhaust port 22. At this time, the vibration generated by the driving of the motor 23 is absorbed by the elastic body 11 and is not transmitted to the fan body 1, so that the generation of noise can be prevented.
【００１４】ところで、本発明においては、軸部３の軸
穴部材５に鍔部７を設け、また、鍔部７の上面と平行に
連結板１５を設置したので、弾性体１１の成形後の収縮
によって生ずる変形は、従来のように自由ではなく鍔部
７によって規制されるためほとんど発生せず、軸穴９に
対する連結板１５の直角度を高精度に維持することがで
きる。また、連結板１５の下部１２と上部１３の弾性体
１１の厚さｔ1 ，ｔ2 をほぼ等しく形成したので、連結
板１５の両面に発生する弾性体の収縮ひずみがバランス
するため、連結板１５を傾けるような変形が生じにく
い。By the way, in the present invention, since the collar portion 7 is provided in the shaft hole member 5 of the shaft portion 3 and the connecting plate 15 is installed in parallel with the upper surface of the collar portion 7, after the elastic body 11 is molded. The deformation caused by contraction is not free unlike the conventional case and is regulated by the collar portion 7, so that it hardly occurs, and the perpendicularity of the connecting plate 15 with respect to the shaft hole 9 can be maintained with high accuracy. Further, since the thicknesses t 1 and t 2 of the elastic bodies 11 on the lower portion 12 and the upper portion 13 of the connecting plate 15 are formed to be substantially equal to each other, the contracting strains of the elastic bodies generated on both surfaces of the connecting plate 15 are balanced, so Deformation such as tilting 15 is unlikely to occur.
【００１５】また、軸穴部材５の鍔部７の上面に弾性体
１１を充填して成形する工程において、鍔部７の外周端
面８は前述のように切削加工により高精度に仕上げられ
ているので、成形金型に精度よく嵌合することができ
る。これに対して嵌合精度が悪い場合は、鍔部７の外周
端面８と金型との間にすき間が生じ、弾性体１１の充填
の際にこのすき間に弾性体１１が侵入する。この場合、
すき間は周方向に対して一定でないため、弾性体１１の
成形時の内部圧力が周方向に対して不均一になるおそれ
があり、これにより連結板１５を傾かせてしまうことが
ある。Further, in the step of filling the upper surface of the collar portion 7 of the shaft hole member 5 with the elastic body 11 and molding, the outer peripheral end surface 8 of the collar portion 7 is finished with high precision by cutting as described above. Therefore, it can be accurately fitted into the molding die. On the other hand, when the fitting accuracy is poor, a gap is created between the outer peripheral end surface 8 of the collar portion 7 and the mold, and the elastic body 11 enters the gap when the elastic body 11 is filled. in this case,
Since the clearance is not constant in the circumferential direction, the internal pressure during molding of the elastic body 11 may be non-uniform in the circumferential direction, which may cause the connecting plate 15 to be tilted.
【００１６】本発明においては、前述のように、軸穴部
材５のダイキャスト成形時の湯口を鍔部７の外周面８に
設け、湯口カットと同時に鍔部７の外周面８の切削加工
を行うようにしたので、加工コストを上昇させることな
く外周面を高精度に仕上げることができる。このため、
弾性体１１の充填成形の際に成形金型に精度良く嵌合で
きるので、両者の間に弾性体１１が侵入して連結板１５
が傾くおそれがなく、連結板１５と軸穴９の直角度を正
確に保持することができる。なお、軸穴部材５のダイキ
ャスト成形時の湯口を別の場所に設けても、湯口カット
とは別の工程で鍔部７の外周端面８の切削加工を行えば
同様の効果が得られるが、切削作業が２工程になるため
コストアップになる。In the present invention, as described above, the sprue for die-cast molding of the shaft hole member 5 is provided on the outer peripheral surface 8 of the collar portion 7, and the outer peripheral surface 8 of the collar portion 7 is cut at the same time when the sprue is cut. Since this is done, the outer peripheral surface can be finished with high accuracy without increasing the processing cost. For this reason,
Since the elastic body 11 can be accurately fitted into the molding die during the filling and molding, the elastic body 11 enters between the two and the connecting plate 15
There is no risk of tilting, and the perpendicularity between the connecting plate 15 and the shaft hole 9 can be accurately maintained. Even if the sprue for die-cast molding of the shaft hole member 5 is provided at a different place, the same effect can be obtained by cutting the outer peripheral end surface 8 of the collar portion 7 in a step different from the sprue cutting. The cost is increased because the cutting work requires two steps.
【００１７】上記の説明では、図１に示す送風ファンに
本発明を実施した場合を示したが、本発明はこれに限定
するものではなく、他の構成の送風ファンにも実施する
ことができる。In the above description, the present invention is applied to the blower fan shown in FIG. 1, but the present invention is not limited to this and can be applied to blower fans having other configurations. .
【００１８】[0018]
【発明の効果】本発明に係る送風ファンは、軸穴部材に
軸穴と直交する鍔部を設け、この鍔部と平行に連結板を
配設し、軸穴部材と連結板の内周縁とを弾性体により一
体に連結成形して軸部を構成し、この軸部の外周縁をフ
ァン本体の端板と一体形成により固定したので、連結板
を軸部の軸穴に対して高精度で直角に保持することがで
き、これにより、ファン本体をモータの出力軸に装着す
る際にその端板が傾くおそれがなく、端板のぶれにより
振動が大きくなることがない。In the blower fan according to the present invention, the shaft hole member is provided with the flange portion orthogonal to the shaft hole, the connecting plate is arranged in parallel with the flange portion, and the shaft hole member and the inner peripheral edge of the connecting plate are provided. Since the shaft part is formed by integrally connecting and molding with the elastic body, and the outer peripheral edge of this shaft part is integrally formed and fixed to the end plate of the fan body, the connecting plate is highly accurate with respect to the shaft hole of the shaft part. Since the fan body can be held at a right angle, there is no risk of the end plate tilting when the fan main body is mounted on the output shaft of the motor, and the vibration of the end plate does not increase due to the shake of the end plate.
【００１９】また、上記の送風ファンにおいて、弾性体
の連結板の下部と上部の厚さをほぼ等しく形成したの
で、弾性体の成形に際して連結板の両面に発生する収縮
ひずみがバランスして連結板を傾けるような変形が生じ
にくく、連結板を軸部の軸穴に対して直角に保持するこ
とができる。Further, in the above-mentioned blower fan, since the thickness of the lower part and the upper part of the connecting plate of the elastic body are formed to be substantially equal, the contracting strains generated on both sides of the connecting plate during molding of the elastic body are balanced. The deformation such as tilting is unlikely to occur, and the connecting plate can be held at a right angle to the shaft hole of the shaft portion.
【００２０】また、上記の送風ファンにおいて、ダイキ
ャスト成形された軸穴部材の鍔部の外周端面を切削仕上
げしたので、弾性体を充填して成形する工程において、
成形金型に精度よく嵌合できるため両者の間に弾性体が
侵入して連結板が傾くおそれがなく、連結板と軸穴の直
角度を正確に保持することができる。In the blower fan, since the outer peripheral end surface of the flange portion of the die-cast molded shaft hole member is cut and finished, in the step of filling and molding the elastic body,
Since it is possible to fit the molding die with high precision, there is no risk that the elastic body will enter between them and the connecting plate will be inclined, and the perpendicularity between the connecting plate and the shaft hole can be accurately maintained.
【図１】 本発明の一実施の形態の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.
【図２】 図１の要部を示す断面図である。FIG. 2 is a sectional view showing a main part of FIG.
【図３】 図２の軸穴部材の断面図、平面図及び弾性体
の断面図である。3A and 3B are a sectional view, a plan view and a sectional view of an elastic body of the shaft hole member of FIG.
【図４】 従来の送風ファンの軸部の一例を示す断面図
である。FIG. 4 is a cross-sectional view showing an example of a shaft portion of a conventional blower fan.
１ ファン本体、２ 端板、３ 軸部、５ 軸穴部材、
６ 本体部、７ 鍔部、８ 外周端面、９ 軸穴、１１
弾性体、１５ 連結板、２３ モータ、２４出力軸。1 fan body, 2 end plates, 3 shaft parts, 5 shaft hole members,
6 body part, 7 collar part, 8 outer peripheral end face, 9 shaft hole, 11
Elastic body, 15 connecting plate, 23 motor, 24 output shaft.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 俊夫 東京都千代田区大手町二丁目６番２号 三菱電機エンジニアリング株式会社内 (58)調査した分野(Int.Cl.7，ＤＢ名) F04D 29/28 F04D 17/04 F04D 29/66 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshio Ishikawa 2-6-2 Otemachi, Chiyoda-ku, Tokyo Mitsubishi Electric Engineering Co., Ltd. (58) Fields investigated (Int.Cl. 7 , DB name) F04D 29 / 28 F04D 17/04 F04D 29/66
Claims (3)
有する軸穴部材を一体に連結してなる軸部を有し、該軸
部の外周縁をファン本体の端板に固定してなる送風ファ
ンにおいて、 前記軸穴部材に軸穴と直交する鍔部を設け、この鍔部と
平行に前記連結板を配設し、前記軸穴部材と連結板の内
周縁とを弾性体により一体に連結成形して軸部を構成
し、該軸部の外周縁を前記ファン本体の端板と一体成形
により固定したことを特徴とする送風ファン。1. A shaft having a shaft-hole member having a shaft hole integrally connected to a connecting plate made of a ring-shaped flat plate, the outer peripheral edge of the shaft being fixed to an end plate of a fan body. In the blower fan, the shaft hole member is provided with a flange portion orthogonal to the shaft hole, the connecting plate is arranged parallel to the flange portion, and the shaft hole member and the inner peripheral edge of the connecting plate are integrally formed by an elastic body. A blower fan, characterized in that it is connected and molded to form a shaft portion, and an outer peripheral edge of the shaft portion is fixed to the end plate of the fan body by integral molding.
ぼ等しく形成したことを特徴とする請求項１記載の送風
ファン。2. The blower fan according to claim 1, wherein the thickness of the lower portion and the upper portion of the elastic connecting plate is substantially equal.
の外周端面を切削仕上げしたことを特徴とする請求項１
記載の送風ファン。3. The outer peripheral end surface of the flange portion of the die-cast molded shaft hole member is cut and finished.
Blower fan described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24362197A JP3381021B2 (en) | 1997-09-09 | 1997-09-09 | Blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24362197A JP3381021B2 (en) | 1997-09-09 | 1997-09-09 | Blower fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1182378A JPH1182378A (en) | 1999-03-26 |
| JP3381021B2 true JP3381021B2 (en) | 2003-02-24 |
Family
ID=17106556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24362197A Expired - Fee Related JP3381021B2 (en) | 1997-09-09 | 1997-09-09 | Blower fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3381021B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343741B (en) * | 2013-07-26 | 2017-09-22 | 佛山市建准电子有限公司 | ceiling fan system |
-
1997
- 1997-09-09 JP JP24362197A patent/JP3381021B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1182378A (en) | 1999-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2561074Y2 (en) | End plate mounting structure for motor device | |
| JP3381021B2 (en) | Blower fan | |
| US5914549A (en) | Alternator for motor vehicles and manufacturing method thereof | |
| EP0894952B1 (en) | Air guide casing for air-cooled engines | |
| JP3139937B2 (en) | Resin toothed pulley | |
| JPH06317293A (en) | Synthetic resin fan | |
| JPH04164195A (en) | Multiblade type impeller | |
| JP2000188841A (en) | Dc brushless motor | |
| JPH062976U (en) | Plastic magnet rotor | |
| JP2005315236A (en) | Air blower | |
| JPS59209053A (en) | Ac generator for vehicle | |
| JPH0617940A (en) | Retainer-equipped oil seal and manufacture thereof | |
| JPH0346178Y2 (en) | ||
| JPH044323A (en) | Damper coupling in spline joint part and damper coupling of engine equipped with separately placed auxiliary machine | |
| JPH09268998A (en) | Cylindrical impeller | |
| JPH0449825A (en) | Permanent magnet rotor | |
| JP2583247Y2 (en) | Starter | |
| JP2001140777A (en) | Oldham's link | |
| JPH0678486A (en) | Molded motor | |
| JPH073808Y2 (en) | Anti-vibration motor rotor | |
| JPH068318Y2 (en) | Engine water pump device | |
| JPS60261992A (en) | Impeller for regenerative pump | |
| JPH0458099A (en) | Fan | |
| JP2550737B2 (en) | Fan rotor manufacturing method | |
| JPH09268999A (en) | Turbo fan structure and manufacture thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071220 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081220 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091220 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |