JPH043160Y2 - - Google Patents
Info
- Publication number
- JPH043160Y2 JPH043160Y2 JP1986177180U JP17718086U JPH043160Y2 JP H043160 Y2 JPH043160 Y2 JP H043160Y2 JP 1986177180 U JP1986177180 U JP 1986177180U JP 17718086 U JP17718086 U JP 17718086U JP H043160 Y2 JPH043160 Y2 JP H043160Y2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing ring
- seal lip
- seal
- circumferential
- reinforcing
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は相互に可動する二部材間に挿入して該
二部材の内・外を密封するシール装置の改良に関
し、具体的には泥水に対するシール性の向上を目
的とした組合せシールに関する。[Detailed description of the invention] [Field of industrial application] The present invention relates to the improvement of a sealing device that is inserted between two mutually movable members to seal the inside and outside of the two members. This invention relates to a combination seal aimed at improving sealing performance.
従来のこの種の組合せシールを図面によつて説
明すれば、第3図の如く、互いに組合せて空洞を
造形できる形状の第1補強環1と第2補強環2と
からなつており、この内側に相手部材に摺接する
シールリツプAを1個または複数個配設して組合
せシールを構成している。
If a conventional combination seal of this kind is explained with reference to a drawing, as shown in Fig. 3, it consists of a first reinforcing ring 1 and a second reinforcing ring 2, which are shaped so that they can be combined with each other to form a cavity. A combination seal is constructed by disposing one or more seal lips A that come into sliding contact with a mating member.
しかし、前記の組合せシールはそれぞれのシー
ルリツプAに左程の関連がなく求める性能順に配
列されているから、組合せるに手間取るのは勿論
組合せ不備の不安が多く残り、運転中にその内部
でシールリツプAが互いに干渉したり摺接不良な
ど発生させ易い重大な欠点があつた。
However, since the combination seals mentioned above have no relation to each seal lip A and are arranged in the order of desired performance, it is not only time-consuming to combine them, but there is also a lot of concern that the combination may be incomplete, and during operation, the seal lips A There were serious drawbacks such as mutual interference and poor sliding contact.
この欠点を補いシールリツプAの緊迫力を高め
るために該シールリツプA外周側に付加物的なガ
ータースプリング等を追設して対処しており価格
的不利感は否めなかつた。 In order to compensate for this drawback and increase the tension of the seal lip A, an additional garter spring or the like is added to the outer periphery of the seal lip A, resulting in an undeniable cost disadvantage.
本考案はこの様な欠点に鑑み、簡便な組付け装
着性を実現すると共に確実に摺接する強緊迫力の
シールリツプAを持つ組合せシールを提供するも
のである。 In view of these drawbacks, the present invention provides a combination seal that realizes easy assembly and installation, and has a seal lip A with strong tension that ensures reliable sliding contact.
本考案は、第1図で示す如く、互いに回転する
二部材間に用いられ、その内部側にあり断面が略
L字形状の第1補強環1と、前記二部材間の外部
側に位置し断面が略逆L字形状の第2補強環2と
を組合せ、該二つの補強環1,2の内部にシール
リツプAを一個あるいは複数個配設した組合せシ
ールであつて;前記第1補強環1の周方向内径部
1aに片方の先部が繋り略V字形状に延びたメイ
ンシールリツプA1を設けて前記第2補強環2の
内周部外面2a及び周方向部内面2bの二箇所に
摺接せしめ、他方の第2補強環2にはその周方向
外径部2Cに先部片方が繋り他端部が外方に向い
た略<字形状のサブシールリツプA2を設け第1
補強環1の外周内面1bに摺接せしめたことを特
徴としている。
As shown in Fig. 1, the present invention is used between two members that rotate with each other, and includes a first reinforcing ring 1 that is located on the inside thereof and has a substantially L-shaped cross section, and a first reinforcing ring 1 that is located on the outside between the two members. A combination seal in which a second reinforcing ring 2 having a substantially inverted L-shaped cross section is combined, and one or more seal lips A are arranged inside the two reinforcing rings 1 and 2; A main seal lip A1 having one end connected to the circumferential inner diameter portion 1a and extending in a substantially V-shape is provided at two locations on the inner circumferential outer surface 2a and the circumferential inner surface 2b of the second reinforcing ring 2. The other second reinforcing ring 2 is provided with a substantially <-shaped sub-seal lip A2 having one end connected to the circumferential outer diameter portion 2C and the other end facing outward.
It is characterized in that it is brought into sliding contact with the outer circumferential inner surface 1b of the reinforcing ring 1.
本考案は上記の様な構造をもつて以下に示す多
くの優れた作用をなさしめる。
The present invention has the above-described structure and achieves many excellent functions as shown below.
すなわち、本考案の組合せシールを組付けると
き、第1図の如く第1補強環1に設けた略V字形
状のメインシールリツプA1及び第2補強環2に
設けた略<字形状のサブシールリツプA2は互い
の嵌入に都合の良い順目方向の傾斜面を有してお
り、しかも柔軟度の高い屈曲形状をなしているか
ら簡単かつ正確に組合せをなさしめ互いの補強環
1,2にぴつたり接触する。 That is, when assembling the combination seal of the present invention, as shown in FIG. A2 has an inclined surface in the grain direction that is convenient for fitting into each other, and has a highly flexible bent shape, so it can be assembled easily and accurately, and it fits perfectly with each other's reinforcing rings 1 and 2. or contact.
この接触状態は、サブシールリツプA2では先
部が外方に向く略<字形状に形成してあるから反
発ストロークの長い弾力性を発生させ振動・歪・
偏心などに対して接触追従性の高いシール形状と
なる。 This contact state is caused by the fact that the sub-seal lip A2 is formed in a substantially <-shaped shape with the tip facing outward, so it generates elasticity with a long repulsion stroke, causing vibrations, distortion, etc.
The seal shape has high contact followability against eccentricity, etc.
一方、第2補強環2に接するメインシールリツ
プA1は特異な略V字形状をなしており、該メイ
ンシールリツプA1の先部3と略V字下端部4と
の二箇所を接触せしめることによつて特徴的な密
封作用をなす。つまり、該メインシールリツプA
1の特徴は一個で連続的に周及び軸方向の二箇所
に接触できることであつて、この形状を持たしめ
ることにより先部3の接触に対する軸方向反発応
力を略V字下端部4に内方の緊迫力として応力変
換させ強い密着力を得さしめたものです。この作
用は、従来使用された緊迫力増強用ガータースプ
リングあるいはC型スプリング等を装着すること
なくメインシールリツプA1そのものによつて強
い接触力を得さしめ、該接触力は互いの接触圧力
が強ければ強い程その作用を増大させる。 On the other hand, the main seal lip A1 in contact with the second reinforcing ring 2 has a unique approximately V-shape, and the tip portion 3 and the approximately V-shaped lower end portion 4 of the main seal lip A1 are brought into contact at two points. This provides a characteristic sealing effect. In other words, the main seal lip A
The feature of 1 is that one piece can continuously contact two places in the circumferential and axial directions, and by having this shape, the axial repulsive stress against the contact of the tip 3 is transferred inward to the approximately V-shaped lower end 4. This creates a strong adhesion force by converting the stress as a tension force. This action allows a strong contact force to be obtained by the main seal lip A1 itself without installing a conventionally used garter spring or C-type spring for reinforcing tension force, and the contact force is equal to the mutual contact pressure. The stronger it is, the more its effect increases.
また、前記のメインシールリツプA1の略V字
谷部はサブシールリツプA2より漏れ来る水分・
ダストに対して受皿状のダム作用をなしそれ以上
の侵入を許さない二次的効果も生まれる。 In addition, the approximately V-shaped valley of the main seal lip A1 is designed to prevent moisture leaking from the sub seal lip A2.
A secondary effect is also created that acts as a saucer-like dam against dust, preventing further intrusion.
本考案を実施するに、第1補強環1に設けるメ
インシールリツプA1の形状は、求められる接触
圧力によつてその各々を変更できる例えば第2図
の様なV字片方の肉厚を部分的に薄く形成した変
則略V字形状5なども形成可能であり、状況に即
した接触圧力を設定できる。
In carrying out the present invention, the shape of the main seal lip A1 provided on the first reinforcing ring 1 can be changed depending on the required contact pressure. It is also possible to form a substantially thin irregular V-shape 5, and it is possible to set the contact pressure according to the situation.
以上の説明の様に、本考案は構造を単純化せし
めて組付け性及び造形性を飛躍的に向上させかつ
一切の付加物を用いることなく強い緊迫力を得さ
しめて高い密封力を実現した理想的な組合せシー
ルである。
As explained above, the present invention simplifies the structure, dramatically improves ease of assembly and formability, and achieves high sealing force by providing strong tension without using any additives. It is an ideal combination seal.
第1図は本考案の組合せシールを表わす断面図
である。第2図は本考案の組合せシールの実施例
を表わした部分断面図である。第3図は従来の組
合せシールを示す断面図である。
A1……メインシールリツプ、A2……サブシ
ールリツプ、1……第1補強環、2……第2補強
環、3……先部、4……略V字下端部。
FIG. 1 is a sectional view showing the combination seal of the present invention. FIG. 2 is a partial sectional view showing an embodiment of the combination seal of the present invention. FIG. 3 is a sectional view showing a conventional combination seal. A1...Main seal lip, A2...Sub seal lip, 1...First reinforcing ring, 2...Second reinforcing ring, 3...Tip, 4...Substantially V-shaped lower end.
Claims (1)
と、外部側にあり断面が略逆L字形状の第2補強
環2とを組合せ、該それぞれの補強環1,2の内
部に弾性体からなるシールリツプAを配設した組
合せシールにおいて;前記第1補強環1の周方向
内径部1aに片方先部が繋る略V字形状に延びた
メインシールリツプA1を設けて前記第2補強環
2の内周部外面2a及び周方向部内面2bの二箇
所に摺接せしめ、一方第2補強環2にはその周方
向外径部2cに先部片方が繋り他方の先部が外方
に向く略<字形状のサブシールリツプA2を設け
第1補強環1の外周部内面1bに摺接せしめたこ
とを特徴とする組合せシール。 A first reinforcing ring 1 located on the inside and having a substantially L-shaped cross section
and a second reinforcing ring 2 which is located on the outside and has a substantially inverted L-shaped cross section, and a seal lip A made of an elastic body is arranged inside each of the reinforcing rings 1 and 2; 1. A main seal lip A1 extending in a substantially V-shape is provided on the circumferential inner diameter portion 1a of the second reinforcing ring 1, and one end thereof is connected to the inner circumferential outer surface 2a and the circumferential inner surface 2b of the second reinforcing ring 2. On the other hand, the second reinforcing ring 2 is provided with a substantially <-shaped sub-seal lip A2 having one end connected to the circumferential outer diameter portion 2c and the other end facing outward. A combination seal characterized in that it is brought into sliding contact with the inner surface 1b of the outer peripheral part of the reinforcing ring 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986177180U JPH043160Y2 (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986177180U JPH043160Y2 (en) | 1986-11-17 | 1986-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6382867U JPS6382867U (en) | 1988-05-31 |
JPH043160Y2 true JPH043160Y2 (en) | 1992-01-31 |
Family
ID=31118141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986177180U Expired JPH043160Y2 (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH043160Y2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0723656Y2 (en) * | 1989-08-10 | 1995-05-31 | 内山工業株式会社 | Combination seal |
JP5180561B2 (en) * | 2007-11-20 | 2013-04-10 | 株式会社ジェイテクト | Sealing device, rolling bearing and wheel rolling bearing |
JP5303909B2 (en) * | 2007-11-20 | 2013-10-02 | 株式会社ジェイテクト | Sealing device, rolling bearing and wheel rolling bearing |
JP5715171B2 (en) * | 2013-02-15 | 2015-05-07 | Ntn株式会社 | Bearing sealing device and wheel bearing |
-
1986
- 1986-11-17 JP JP1986177180U patent/JPH043160Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6382867U (en) | 1988-05-31 |
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