JPH0354337Y2 - - Google Patents
Info
- Publication number
- JPH0354337Y2 JPH0354337Y2 JP1930886U JP1930886U JPH0354337Y2 JP H0354337 Y2 JPH0354337 Y2 JP H0354337Y2 JP 1930886 U JP1930886 U JP 1930886U JP 1930886 U JP1930886 U JP 1930886U JP H0354337 Y2 JPH0354337 Y2 JP H0354337Y2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- boss
- blade
- elastic protrusion
- protrusion
- 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
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は換気扇、とくに羽根の緩み防止構造
に関するものである。[Detailed description of the invention] [Industrial field of application] This invention relates to a ventilation fan, particularly a structure for preventing loosening of the blades.
第４図は例えば実開昭49−48753号公報で示さ
れた従来例を示すもので、図において１は羽根、
２は羽根１を駆動する電動機、３は電動機２の駆
動軸、３ａは外周部にねじ部３ｂを形成し、欠円
状の断面を形成した駆動軸３の端部、４は駆駆軸
３が貫通するボス、５はボス４の外周部に一体に
形成され、背面にリベツト６により羽根１を固定
するフランジ、７はボス４の外周部とフランジ５
の前部とを連結するリブ、８はボス４の前面に固
着され、駆動軸の欠円状の端部３ａが嵌入される
トルク伝達板、９はフランジ５の前面の凹部５ａ
に形成されたねじ穴５ｂにねじ１０により軸方向
に取付けられる弾性突起で、弾性突起９は先端の
Ｕ字状折曲げ部９ａとコイル状に形成された主体
９ｂとフランジ５の前面に取付られる基部９ｃと
からなり、いずれもばね線により構成されてい
る。１１は駆動軸３の端部３ａにねじ部３ｂを介
してねじ込まれ、羽根１と一体に回転するつまみ
部で、つまみ部１１は内周部にねじ部１２ａを形
成したボス１２と、ボス１２の外周部から放射状
に形成された剛性突起１３と、剛性突起１３の外
周部と側部をおおうカバー１４とにより構成され
る。
FIG. 4 shows a conventional example shown in, for example, Japanese Utility Model Application Publication No. 49-48753. In the figure, 1 is a blade;
2 is an electric motor that drives the blade 1; 3 is a drive shaft of the electric motor 2; 3a is an end portion of the drive shaft 3 which has a threaded portion 3b on its outer periphery and has an occluded cross section; 4 is a drive shaft 3; 5 is a flange integrally formed on the outer periphery of the boss 4 and fixes the blade 1 with a rivet 6 on the back side; 7 is a flange formed between the outer periphery of the boss 4 and the flange 5
8 is a torque transmission plate fixed to the front surface of the boss 4 and into which the truncated end 3a of the drive shaft is fitted; 9 is a recess 5a on the front surface of the flange 5;
The elastic protrusion 9 is attached in the axial direction with a screw 10 to a screw hole 5b formed in the flange 5, and the elastic protrusion 9 is attached to the U-shaped bent portion 9a at the tip, the main body 9b formed in a coil shape, and the front surface of the flange 5. The base portion 9c is composed of a spring wire. Reference numeral 11 denotes a knob part which is screwed into the end part 3a of the drive shaft 3 via the threaded part 3b and rotates together with the blade 1. The rigid protrusion 13 is formed radially from the outer periphery of the rigid protrusion 13, and the cover 14 covers the outer periphery and side portions of the rigid protrusion 13.
つぎに羽根部１５の組立と動作について説明す
る。まずフランジ５に羽根１をリベツト６により
固定し、ボス４の前部にトルク伝達板８を取付け
るとともに、フランジ５の前面に弾性突起９をね
じ１０により取付け、トルク伝達板８の欠円穴８
ａに駆動軸３の端部３ａを背部から貫通すること
により羽根部１５が組立てられる。ついで、駆動
軸３の端部３ａをつまみ部１１のボス１２のねじ
部１２ａにねじ込み、つまみ部１１を回転するこ
とにより弾性突起９は剛性突起１３に接触して回
転方向に押されて斜めとなり複数の剛性突起１３
の側面１３ａに摺動しながらつまみ部１１は羽根
部１５にねじ結合される。また長期の使用により
つまみ部１１が羽根部１５とのねじ結合が緩む恐
れがあるが複数の剛性突起１３に弾性突起９が係
合するので、緩みの進行が抑制される。 Next, the assembly and operation of the blade portion 15 will be explained. First, the blade 1 is fixed to the flange 5 with the rivet 6, the torque transmission plate 8 is attached to the front of the boss 4, the elastic protrusion 9 is attached to the front of the flange 5 with the screw 10, and the missing circular hole 8 of the torque transmission plate 8 is attached.
The blade portion 15 is assembled by penetrating the end portion 3a of the drive shaft 3 from the back. Next, the end 3a of the drive shaft 3 is screwed into the threaded part 12a of the boss 12 of the knob 11, and by rotating the knob 11, the elastic protrusion 9 comes into contact with the rigid protrusion 13 and is pushed in the direction of rotation, becoming oblique. multiple rigid protrusions 13
The knob part 11 is screwed to the blade part 15 while sliding on the side surface 13a of the blade part 15. Further, there is a possibility that the screw connection between the knob part 11 and the blade part 15 may loosen due to long-term use, but since the elastic protrusions 9 engage with the plurality of rigid protrusions 13, the progress of loosening is suppressed.
以上のように従来の換気扇は、弾性突起９をフ
ランジの前面にねじにより固定するようにしたの
で、ねじ加工ならびに組立作業が煩雑であるとと
もに、ねじ締めによる取付けが不安定であるなど
の問題点があつた。
As described above, in the conventional ventilation fan, the elastic projections 9 are fixed to the front surface of the flange with screws, which causes problems such as complicated screw machining and assembly work and unstable installation by screw tightening. It was hot.
この考案は、以上のような問題点を解消するた
めになされたもので、弾性突起の取付けが容易で
また取付保持の安定した換気扇を提供することを
目的とするものである。 This invention was made to solve the above-mentioned problems, and the purpose is to provide a ventilation fan in which elastic protrusions can be easily attached and which can be stably maintained.
この考案による換気扇は、弾性突起をフランジ
の背面から貫通させるとともに、弾性突起の基部
をフランジと羽根との間に挾んで固定するように
したものである。
In the ventilation fan according to this invention, the elastic protrusion is passed through from the back side of the flange, and the base of the elastic protrusion is sandwiched and fixed between the flange and the blade.
この考案においては、弾性突起をフランジに取
付けるためのねじ止めが不要となり、弾性突起の
取付けが容易であり、また保持が安定する。
This invention eliminates the need for screws to attach the elastic protrusion to the flange, making it easy to attach the elastic protrusion and stably holding the elastic protrusion.
以下、この考案の一実施例を第１図〜第３図に
より説明する。図において第４図と同一符号は同
一または相当部分を示し、５ｃはフランジ５の背
面に形成された凹部、５ｄはフランジ５の凹部５
ｃ内を貫通する貫通穴、９ｄは弾性突起９の基部
で、弾性突起９をフランジ５の背部から貫通穴５
ｄを通つてフランジ５の前面に突出させたとき、
基部９ｄが貫通穴５ｄに掛止されるように、貫通
穴５ｄより大きく設定するとともに、基部９ｄの
軸方向寸法Ｔは凹部５ｃの深さ寸法Ｈより大きく
形成する。また、基部９ｄは凹部５ｃ内で移動し
ないように寸法が設定され、主体９ｂの中心線と
貫通穴５ｄの中心線とは一致するように配置する
ので、中心線に対して基部９ｄの幅寸法l1，l2お
よび凹部５ｃの幅寸法L1，L2は第１図，第２図
に示されるようにl2＞l1，L2＞L1となり中心線に
対して非対称となる。
An embodiment of this invention will be described below with reference to FIGS. 1 to 3. In the figure, the same reference numerals as in FIG. 4 indicate the same or equivalent parts, 5c is a recess formed on the back surface of the flange 5, and 5d is a recess 5 of the flange 5.
A through hole 9d passing through c is the base of the elastic protrusion 9, and the elastic protrusion 9 is inserted into the through hole 5 from the back of the flange 5.
When protruding from the front of the flange 5 through d,
The base portion 9d is set to be larger than the through hole 5d so that the base portion 9d is hooked in the through hole 5d, and the axial dimension T of the base portion 9d is formed to be larger than the depth dimension H of the recess 5c. In addition, the dimensions of the base 9d are set so that it does not move within the recess 5c, and the center line of the main body 9b and the center line of the through hole 5d are arranged so as to match, so the width dimension of the base 9d with respect to the center line As shown in FIGS. 1 and 2 , the width dimensions L 1 and L 2 of l 1 and l 2 and the recessed portion 5c are asymmetric with respect to the center line since l 2 >l 1 and L 2 >L 1 .
以上のように構成され、弾性突起９の折曲げ部
９ａおよび主体９ｂをフランジ５背部の凹部５ｃ
内の貫通穴５ｄを通つて、フランジ５の前面に突
出させ基部９ｄを凹部５ｃ内に収容した上で、フ
ランジ５の背面に羽根１をリベツト６により固着
する。その結果、弾性突起９の基部９ｄはフラン
ジ５と羽根１との間で圧縮されて保持され、第２
図に示されるように弾性突起９の折曲げ部９ａは
ボス４の前面４ａより突出する。羽根部１５につ
まみ部１１をねじ結合する動作については、従来
例と同様であるので説明は省略する。 With the structure described above, the bent portion 9a of the elastic protrusion 9 and the main body 9b are connected to the concave portion 5c on the back of the flange 5.
The blade 1 is fixed to the back surface of the flange 5 with a rivet 6 after protruding to the front surface of the flange 5 through the inner through hole 5 d and housing the base portion 9 d in the recess 5 c. As a result, the base 9d of the elastic protrusion 9 is compressed and held between the flange 5 and the blade 1, and the second
As shown in the figure, the bent portion 9a of the elastic protrusion 9 protrudes from the front surface 4a of the boss 4. The operation of screwing the knob part 11 to the blade part 15 is the same as that of the conventional example, so a description thereof will be omitted.
この考案は以上説明したように、弾性突起の基
部をフランジと羽根との間に圧縮して保持するよ
うにしたので、ねじ取付けの必要がなくなり、安
定した保持ができるとともに、弾性突起の取付け
が容易となるという効果がある。
As explained above, this device compresses and holds the base of the elastic protrusion between the flange and the blade, eliminating the need for screw attachment, allowing stable retention, and making it easier to attach the elastic protrusion. This has the effect of making it easier.
第１図〜第３図はこの考案の一実施例を示し、
第１図は羽根部を分解して示す斜視図、第２図は
羽根部の側断面図、第３図のａは弾性突起の側面
図、ｂは背面図、第４図は従来の装置を分解して
示す斜視図である。
図において、同一符号は同一または相当部分を
示し、１は羽根、２は電動機、３は駆動軸、３ａ
は端部、３ｂはねじ部、４はボス、５はフラン
ジ、５ｃは凹部、９は弾性突起、９ｂは主体、９
ｄは基部、１１はつまみ部、１２はボス、１３は
剛性突起、１４はカバー、１５は羽根部である。
Figures 1 to 3 show an embodiment of this invention,
Figure 1 is an exploded perspective view of the blade, Figure 2 is a side sectional view of the blade, Figure 3 a is a side view of the elastic protrusion, Figure b is a rear view, and Figure 4 shows the conventional device. It is an exploded perspective view. In the figures, the same reference numerals indicate the same or corresponding parts, 1 is the blade, 2 is the electric motor, 3 is the drive shaft, 3a
is an end, 3b is a threaded portion, 4 is a boss, 5 is a flange, 5c is a recess, 9 is an elastic projection, 9b is a main body, 9
d is a base, 11 is a knob, 12 is a boss, 13 is a rigid projection, 14 is a cover, and 15 is a blade.
Claims (1)
付けられた羽根１、上記ボス４を介して上記羽
根１を駆動する電動機２、上記ボス４を貫通し
て端部にねじ部３ｂを形成した上記電動機の駆
動軸３、上記フランジ５に軸方向に支持される
弾性突起９、及び上記ボス４に対向し、上記駆
動軸３のねじ部３ｂがねじ込まれるねじ部１２
ａを内周部に形成したボス１２と、このボス１
２から放射状に形成され、上記弾性突起９と係
合するよう形成された複数個の剛性突起１３
と、この剛性突起１３の外周部をおおうカバー
１４とからなるつまみ部１１とを備えた換気扇
において、上記弾性突起９を上記フランジ５の
背面から貫通させるとともに、上記弾性突起９
の基部９ｄを上記フランジ５と上記羽根１との
間に挟み、保持したことを特徴とする換気扇。 (2) フランジ５の背面に凹部５ｃを形成し、この
凹部５ｃ内に弾性突起９の基部９ｄを圧縮して
保持するようにしたことを特徴とする実用新案
登録請求の範囲第１項に記載の換気扇。 (3) 弾性突起９はコイルばねを主体としてばね線
により構成したことを特徴とする実用新案登録
請求の範囲第１項または第２項に記載の換気
扇。[Claims for Utility Model Registration] (1) A blade 1 attached to a flange 5 formed on the outer periphery of the boss 4, an electric motor 2 that drives the blade 1 via the boss 4, and a motor 2 that penetrates the boss 4. The drive shaft 3 of the electric motor has a threaded portion 3b formed at its end, the elastic protrusion 9 supported in the axial direction by the flange 5, and the boss 4, into which the threaded portion 3b of the drive shaft 3 is screwed. Threaded part 12
a boss 12 formed on the inner periphery, and this boss 1
a plurality of rigid protrusions 13 formed radially from 2 and engaged with the elastic protrusions 9;
and a cover 14 that covers the outer periphery of the rigid protrusion 13.
A ventilation fan characterized in that a base portion 9d of the fan is held between the flange 5 and the blade 1. (2) A utility model registration claim 1, characterized in that a recess 5c is formed on the back surface of the flange 5, and the base 9d of the elastic protrusion 9 is compressed and held within the recess 5c. ventilation fan. (3) The ventilation fan according to claim 1 or 2, wherein the elastic protrusion 9 is mainly composed of a coil spring and is made of a spring wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1930886U JPH0354337Y2 (en) | 1986-02-13 | 1986-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1930886U JPH0354337Y2 (en) | 1986-02-13 | 1986-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62132325U JPS62132325U (en) | 1987-08-20 |
| JPH0354337Y2 true JPH0354337Y2 (en) | 1991-11-29 |
Family
ID=30813792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1930886U Expired JPH0354337Y2 (en) | 1986-02-13 | 1986-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0354337Y2 (en) |
-
1986
- 1986-02-13 JP JP1930886U patent/JPH0354337Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62132325U (en) | 1987-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6699014B1 (en) | Quick connect device for ceiling fan blade and method therefor | |
| JPH0354337Y2 (en) | ||
| JP3054666B2 (en) | Fastener with slack prevention mechanism | |
| JPS628860Y2 (en) | ||
| JP2857790B2 (en) | Fan mounting structure | |
| JPH03102094U (en) | ||
| JPH0545836Y2 (en) | ||
| CN219100948U (en) | Handle | |
| JPS6310318B2 (en) | ||
| JPH0239003Y2 (en) | ||
| JPS6224075Y2 (en) | ||
| JPH0720629Y2 (en) | Rotating bezel device | |
| EP0979949A1 (en) | Fan blade assembly of a ceiling fan | |
| JPS6354920B2 (en) | ||
| JPS5936214Y2 (en) | Inner blade of rotary electric shaver | |
| JPH0538431Y2 (en) | ||
| JPH0733570Y2 (en) | Bearing structure of electric fan motor | |
| KR200162631Y1 (en) | The drag device of fishing reel | |
| JPH0116366Y2 (en) | ||
| JPS5823145Y2 (en) | Electrical component mounting device | |
| JPS6011668Y2 (en) | Handle attachment device | |
| JPS6038314Y2 (en) | Cover fixing device | |
| JPH0718259Y2 (en) | Cutting blade rotating body of brush cutter | |
| JPS6116381Y2 (en) | ||
| JPS5935017Y2 (en) | parts mounting device |