JPS5824680Y2 - bellows seal - Google Patents
bellows sealInfo
- Publication number
- JPS5824680Y2 JPS5824680Y2 JP1978061215U JP6121578U JPS5824680Y2 JP S5824680 Y2 JPS5824680 Y2 JP S5824680Y2 JP 1978061215 U JP1978061215 U JP 1978061215U JP 6121578 U JP6121578 U JP 6121578U JP S5824680 Y2 JPS5824680 Y2 JP S5824680Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- bellows
- water seal
- reinforcing ring
- annular 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
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Description
【考案の詳細な説明】
本考案はベローズシール、特に脱水機の脱水軸のように
横方向の振動を伴なう回転軸の水密シールに好適なベロ
ーズシールの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a bellows seal, particularly a bellows seal suitable for watertight sealing of a rotating shaft that is subject to lateral vibration, such as a dehydration shaft of a dehydrator.
通常の脱水機においては第１図に示す如く脱水かと１で
脱水された水がモーター１５側へ飛散するのを防止する
ため、ベローズ２に嵌入したウォーターシール３にて水
密性を維持している。In a normal dehydrator, watertightness is maintained by a water seal 3 fitted into a bellows 2 in order to prevent the water dehydrated in the dehydrator 1 from scattering toward the motor 15, as shown in Figure 1. .
脱水の際脱水かと１が振れると前記ベロニズ２が緩衝体
の役目をするが、振動を完全に吸収緩和できず、脱水か
と１の振れに伴って脱水軸４に偏心運動が生じる。When the spinner heel 1 shakes during dewatering, the veronise 2 acts as a buffer, but cannot completely absorb and alleviate the vibration, and eccentric movement occurs in the spindle shaft 4 as the spindle heel 1 shakes.
この際脱水軸４を支承するメタル５は大半が金属製であ
るため、脱水軸４の動きに追随するが、合成ゴム等から
成るウォーターシール３が追随しきれず瞬間的に脱上軸
４とウォーターシール３に設けたシールリップ６との間
に間隙が生じ水漏れ現象が発生する。At this time, since most of the metal 5 supporting the dehydration shaft 4 is made of metal, it follows the movement of the dehydration shaft 4, but the water seal 3 made of synthetic rubber or the like cannot follow the movement of the dehydration shaft 4, and the water instantly connects to the dehydration shaft 4. A gap is created between the seal lip 6 provided on the seal 3 and a water leakage phenomenon occurs.
このため従来から第２図に示す如くウォーターシール３
とメタル５とを一体にし、ウォーターシール３をメタル
５の動きと同じくシ、脱水軸４の偏心運動に追随させる
ように、別に設けた・・ウジング７内に前記ウォーター
シール３とメタル４とを圧入した後にベローズ２に取付
けている。For this reason, as shown in FIG.
The water seal 3 and metal 4 are integrated into a separate housing 7 so that the water seal 3 follows the eccentric movement of the dewatering shaft 4 in the same way as the movement of the metal 5. It is attached to bellows 2 after being press-fitted.
該構成により脱水軸４の偏心運動に対する追随性が向上
し、水漏れを防止できる効果を有する。This configuration improves the ability to follow the eccentric movement of the dewatering shaft 4, and has the effect of preventing water leakage.
しかしウォーターシール３を補強する補強環８の外に、
ウォーターシール３とメタル５とを一体にするための・
・ウジング７が構成部品として必要であり、コスト高と
なり、斗た・・ウジング７の内周嵌合部とメタル５の外
径の寸法公差を厳密に設定する必要があり、製作並びに
組立作業が煩雑となる欠点がある。However, in addition to the reinforcing ring 8 that reinforces the water seal 3,
For integrating water seal 3 and metal 5.
・Using 7 is required as a component, which increases the cost.It is also necessary to set strict dimensional tolerances between the inner peripheral fitting part of Uging 7 and the outer diameter of metal 5, which requires manufacturing and assembly work. It has the disadvantage of being complicated.
本考案の目的は上記従来例の欠点を解決したベローズシ
ールを提供することにある。An object of the present invention is to provide a bellows seal that solves the drawbacks of the above-mentioned conventional examples.
本考案の実施例を示す第３図において、ベローズシール
はベローズ２にウォーターシール３を［着させて構成さ
れている。In FIG. 3 showing an embodiment of the present invention, the bellows seal is constructed by attaching a water seal 3 to a bellows 2.
ウォーターシール３は補強環８の内周部に焼付けた筒部
９と該筒部９から軸方向に延出するシールリップ６とよ
り成る。The water seal 3 consists of a cylindrical portion 9 baked into the inner peripheral portion of a reinforcing ring 8 and a seal lip 6 extending axially from the cylindrical portion 9.
前記筒部９にメタル５を嵌入して該メタルとウオ−ター
シール３とは一体化している。A metal 5 is fitted into the cylindrical portion 9, and the metal and the water seal 3 are integrated.
前記ウォーターシール３の外周部即ちベローズ２への嵌
着部の一部には、前記ウォーターシール３と同一材料に
て被覆し形成した環状突起部１０が構成されており、他
の部分は補強環８を露出させてもよく又は薄く被覆して
もよい。A part of the outer periphery of the water seal 3, that is, a part of the fitting part to the bellows 2, is formed with an annular protrusion 10 covered with the same material as the water seal 3, and the other part is a reinforcing ring. 8 may be exposed or thinly coated.
前記環状突起部１０はシールリップ部６のネックから前
記補強環８の一部にかけて半径方向距離で補強環８より
外方に延在し、また前記補強環８の外周部は前記環状突
起部１０から前記シールリップ部６の反対側に前記補強
環８の大部分となって形成され、この環状突起部１０と
補強環８の外周部によってウォーターシール３の嵌着部
を構成する。The annular protrusion 10 extends outwardly from the reinforcing ring 8 at a radial distance from the neck of the sealing lip 6 to a part of the reinforcing ring 8, and the outer periphery of the reinforcing ring 8 extends beyond the annular protrusion 10. A large part of the reinforcing ring 8 is formed on the opposite side of the seal lip part 6, and the annular protrusion 10 and the outer peripheral part of the reinforcing ring 8 constitute a fitting part of the water seal 3.
該構成より成るウォーターシール３の外周を保持するベ
ローズ２の内周面には、前記補強環８の外周面と嵌合す
るシール嵌合部１１と、前記環状突起部１０に係合する
環状溝部１２とが設けられている。The bellows 2 that holds the outer periphery of the water seal 3 having the above structure has a seal fitting portion 11 that fits with the outer periphery of the reinforcing ring 8 and an annular groove that engages with the annular protrusion 10 on the inner circumferential surface of the bellows 2 that holds the outer periphery of the water seal 3 constructed as described above. 12 are provided.
第４図は本考案の別の実施例を示すが、ウォーターシー
ル３にダストリップ１３を設けて潤滑用グリースを充填
するグリースポケット１４を形成した以外は第３図の実
施例と同一である。FIG. 4 shows another embodiment of the present invention, which is the same as the embodiment shown in FIG. 3 except that the water seal 3 is provided with a dust lip 13 to form a grease pocket 14 filled with lubricating grease.
本考案は上述の如き構成より威るので、従来例のように
ウォーターシール３とメタル５とを一体化するに必要で
あった・・ウジング７が不要となる。Since the present invention is more powerful than the above-described configuration, the housing 7, which was necessary to integrate the water seal 3 and the metal 5 as in the conventional example, is no longer necessary.
またウォーターシール３に設けた補強環８の外周部と、
ベローズ２に設けたシール嵌合部１１とが強固に嵌着さ
れ且つウォーターシール３に設けた環状突起部１０と、
ベローズシール２に設置ｔｆｋ’ＦＢ状溝部１２との係
合によりベローズ２よりウォーターシール３が離脱する
のを完全に防止できる。In addition, the outer periphery of the reinforcing ring 8 provided on the water seal 3,
An annular protrusion 10 provided on the water seal 3 and firmly fitted with a seal fitting portion 11 provided on the bellows 2;
By engaging with the tfk'FB-shaped groove 12 installed in the bellows seal 2, it is possible to completely prevent the water seal 3 from separating from the bellows 2.
さらにはメタル５の外径寸法に多少のバラツキが生じて
も該メタル５の嵌入部となる筒部９の内周面は合成ゴム
等の弾性体にて形成したので、組立作業の面での問題は
なく、作業性及び互換性の向上が計れる。Furthermore, even if there is some variation in the outer diameter of the metal 5, the inner circumferential surface of the cylindrical part 9, into which the metal 5 is inserted, is made of an elastic material such as synthetic rubber, making it easier to assemble. There are no problems, and workability and compatibility can be improved.
第１図は脱水機の断面図、第２図は脱水機に使用されて
いる従来のベローズシールの断面図、第３図は同じよう
に脱水機に取付けられた本考案のベローズシールの断面
図、第４図は本考案の別の実施例を示す断面図である。
１・・・脱水かご、２・・・ベローズ、３・・・ウォー
ターシール、４・・・脱水軸、５・・・メタル、６・・
・シールリップ、７・・・・・ウジング、８・・・金属
環、９・・・筒部、１０・・・環状突起部、１１・・・
シール嵌合部、１２・・・環状溝部。Figure 1 is a sectional view of a dehydrator, Figure 2 is a sectional view of a conventional bellows seal used in a dehydrator, and Figure 3 is a sectional view of the bellows seal of the present invention installed in a dehydrator. , FIG. 4 is a sectional view showing another embodiment of the present invention. 1... Dehydration basket, 2... Bellows, 3... Water seal, 4... Dehydration shaft, 5... Metal, 6...
・Seal lip, 7...Using, 8...Metal ring, 9...Cylinder part, 10...Annular protrusion, 11...
Seal fitting portion, 12... annular groove portion.
Claims (1)
向に延出するシールリップ部６とより成るウォーターシ
ール３の前記筒部９の内周にメタル５を嵌入し且つ外周
をベローズ２に嵌着するベローズシールにおいて、前記
ウォーターシール３の外周に前記シールリップ部６のネ
ックから前記補強環８の一部にかけての外方に延在し前
記ウォーターシール３と同一材料にて被覆し形成した環
状突起部１０と、該環状突起部１０から前記シールリッ
プ部６とは反対側に補強環８の外周部とを構成し、前記
ウォーターシール３を保持するベローズ２の内周面に前
記補強環８の外周部と嵌合するシール嵌合部１１と前記
環状突起部１０と係合する環状溝部１２とを設け、該部
位により前記ベローズ２に前記ウォーターシール３を嵌
着させたことを特徴とするベローズシール。The metal 5 is fitted into the inner periphery of the cylindrical portion 9 of the water seal 3, which is composed of a cylindrical portion 9 baked onto the inner periphery of the reinforcing ring 8 and a seal lip portion 6 extending in the axial direction from the cylindrical portion 9. In the bellows seal whose outer periphery is fitted to the bellows 2, a bellows seal is provided on the outer periphery of the water seal 3 that extends outward from the neck of the seal lip portion 6 to a part of the reinforcing ring 8 and is made of the same material as the water seal 3. The inner periphery of the bellows 2 that holds the water seal 3 constitutes an annular protrusion 10 formed by covering the annular protrusion 10 and an outer periphery of the reinforcing ring 8 on the opposite side of the annular protrusion 10 from the seal lip 6. A seal fitting portion 11 that fits with the outer peripheral portion of the reinforcing ring 8 and an annular groove portion 12 that engages with the annular protrusion 10 are provided on the surface, and the water seal 3 is fitted to the bellows 2 by these portions. A bellows seal characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978061215U JPS5824680Y2 (en) | 1978-05-08 | 1978-05-08 | bellows seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978061215U JPS5824680Y2 (en) | 1978-05-08 | 1978-05-08 | bellows seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54163268U JPS54163268U (en) | 1979-11-15 |
| JPS5824680Y2 true JPS5824680Y2 (en) | 1983-05-27 |
Family
ID=28962358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978061215U Expired JPS5824680Y2 (en) | 1978-05-08 | 1978-05-08 | bellows seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824680Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111544Y2 (en) * | 1980-05-17 | 1986-04-11 | ||
| JPS58158860U (en) * | 1982-03-27 | 1983-10-22 | エヌオーケー株式会社 | Seal with diaphragm |
| JP5120763B2 (en) * | 2006-07-05 | 2013-01-16 | Ｎｏｋ株式会社 | Sealing device |
| US20100133758A1 (en) * | 2006-11-21 | 2010-06-03 | Go Kanzaki | Sealing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424186Y2 (en) * | 1971-11-19 | 1979-08-16 | ||
| JPS5534371Y2 (en) * | 1976-03-25 | 1980-08-14 |
-
1978
- 1978-05-08 JP JP1978061215U patent/JPS5824680Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54163268U (en) | 1979-11-15 |
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