JPH0135983Y2 - - Google Patents
Info
- Publication number
- JPH0135983Y2 JPH0135983Y2 JP1984083965U JP8396584U JPH0135983Y2 JP H0135983 Y2 JPH0135983 Y2 JP H0135983Y2 JP 1984083965 U JP1984083965 U JP 1984083965U JP 8396584 U JP8396584 U JP 8396584U JP H0135983 Y2 JPH0135983 Y2 JP H0135983Y2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing ring
- rubber
- horizontal part
- flange
- oil seal
- 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 24
- 239000002184 metal Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 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」
この考案は、ゴム製オイルシール本体内に装填
したＬ字型の金属補強環の水平部からシールリツ
プの内周面にかけて基部にフランジを有する環状
のふつ素樹脂製バツクアツプリングを接着してな
るオイルシール、特に耐圧性の高い耐圧シールに
関するものである。[Detailed description of the invention] "Field of industrial application" This invention consists of an annular oil seal with a flange at the base extending from the horizontal part of the L-shaped metal reinforcing ring loaded in the rubber oil seal body to the inner peripheral surface of the seal lip. The present invention relates to an oil seal formed by adhering a back-up spring made of fluorine resin, particularly to a pressure-resistant seal with high pressure resistance.
「従来の技術、考案が解決せんとする問題点」
従来この種のオイルシールは、その成形時にお
いて第３図に示すように表面にゴム用接着剤を塗
付した断面Ｌ字型の金属補強環の水平部にバツク
アツプリングのフランジを添接して成形されてい
たが、バツクアツプリングのふつ素樹脂は補強環
の金属に対して接着性が悪いため、補強環とバツ
クアツプリングとの接着強度が弱く剥離を生ずる
難点があつた。``Problems that conventional technology and ideas cannot solve'' Conventionally, this type of oil seal was formed using a metal reinforcement with an L-shaped cross section and a rubber adhesive applied to the surface as shown in Figure 3. The flange of the back-up spring was attached to the horizontal part of the ring, but the fluorine resin of the back-up spring had poor adhesion to the metal of the reinforcing ring, so it was difficult to bond the reinforcing ring and the back-up spring. The problem was that the strength was weak and peeling occurred.
そこで、補強環のバツクアツプリングの添接面
にふつ素樹脂用の接着剤を塗付することも、提案
されたが、製造工程が煩雑になることからその採
用に難があつた。 Therefore, it has been proposed to apply an adhesive for fluorine resin to the attachment surface of the back-up spring of the reinforcing ring, but it has been difficult to adopt this method because it complicates the manufacturing process.
この考案は前記従来の課題を解決するために、
補強環の水平部にゴムが流通可能な流通孔を設
け、この流通孔を通つて補強環の水平部とバツク
アツプリングのフランジとの対面間隙内にゴムを
侵入させることにより両者を強固に接着し、その
剥離を確実に防止できるようにしたオイルシール
の構造を提案するものである。 In order to solve the above-mentioned conventional problems, this invention
A circulation hole is provided in the horizontal part of the reinforcing ring through which rubber can flow, and the rubber enters the gap between the horizontal part of the reinforcing ring and the flange of the back-up spring through this circulation hole, thereby firmly adhering the two. The present invention proposes an oil seal structure that can reliably prevent such peeling.
以下この考案を図面に示す実施例について説明
すると、Ｌ字型金属補強環１の水平部１ａには複
数箇所に流通孔２が穿設され、この水平部１ａの
先端部にはシールリツプ３及びダストリツプ４が
形成され、また補強環１の水平部１ａの後端部及
び垂直部１ｂにはその内外面を一連に被覆してゴ
ム製オイルシール本体を構成する被覆部５，６が
リツプ３，４と一体に形成されている。 The embodiment of this invention shown in the drawings will be described below. The horizontal part 1a of the L-shaped metal reinforcing ring 1 is provided with a plurality of communication holes 2, and the tip of the horizontal part 1a is provided with a seal lip 3 and a dust lip. Further, on the rear end portion of the horizontal portion 1a and the vertical portion 1b of the reinforcing ring 1, covering portions 5 and 6 are provided which continuously cover the inner and outer surfaces of the reinforcing ring 1 to form a rubber oil seal body. is formed integrally with.
シールリツプ３の内周には、基部にフランジ
７′を有する環状のバツクアツプリング７が接着
され、そのフランジ７′は補強環１の流通孔２か
ら流入して補強環１とフランジ７′との対面間隙
内に侵入したゴム８により補強環１に強固に接着
されている。また、シールリツプ３の外周にはガ
ータースプリング９が装着されている。 An annular back-up ring 7 having a flange 7' at the base is adhered to the inner periphery of the seal lip 3, and the flange 7' flows in from the communication hole 2 of the reinforcing ring 1 to connect the reinforcing ring 1 and the flange 7'. It is firmly adhered to the reinforcing ring 1 by the rubber 8 that has penetrated into the facing gap. Further, a garter spring 9 is attached to the outer periphery of the seal lip 3.
第２図は上記構成のオイルシールを金型により
成形する状態の一例を示したもので、上下の金型
１０，１１間に補強環１をその垂直部１ｂ上にゴ
ムの流通間隙を保持して配置すると共に、補強環
１の水平部１ａ上にバツクアツプリング７のフラ
ンジ７′を添接して配置し、この状態で上型１０
内にゴム材料を充填して上下の金型１０，１１を
圧締すると、ゴム材料は補強環１の内側の上型１
０の内面に沿つて流動すると共に、補強環１の垂
直部１ｂ上の間隙１２を通つて下型９内に流入
し、補強環１の内外にリツプ３，４及びゴム被覆
部５，６を一体的に成形し、更に水平部１ａの流
通孔２から水平部１ａとフランジ７′との対面間
隙内に侵入し、この侵入ゴムによつて水平部１ａ
とフランジ７′を強固に接着する。 FIG. 2 shows an example of the state in which the oil seal having the above structure is molded using a mold, in which the reinforcing ring 1 is held between the upper and lower molds 10 and 11 on the vertical portion 1b thereof, with a gap for rubber circulation. At the same time, the flange 7' of the back-up spring 7 is placed on the horizontal part 1a of the reinforcing ring 1, and in this state, the upper mold 10 is placed.
When the rubber material is filled inside and the upper and lower molds 10 and 11 are pressed, the rubber material is filled into the upper mold 1 inside the reinforcing ring 1.
0 and flows into the lower mold 9 through the gap 12 on the vertical part 1b of the reinforcing ring 1, forming lips 3, 4 and rubber coating parts 5, 6 inside and outside of the reinforcing ring 1. It is molded integrally, and further penetrates into the gap between the horizontal part 1a and the flange 7' through the communication hole 2 of the horizontal part 1a, and by this intruding rubber, the horizontal part 1a
and flange 7' are firmly bonded.
「考案の効果」
以上の通りこの考案によれば、補強環の水平部
にゴムの流通孔を穿設し、補強環の水平部とこれ
に添接したバツクアツプリングのフランジとをそ
れらの対面間隙内に補強環の流通孔から流入した
ゴムを侵入させて接着してなるので、この侵入ゴ
ムを接着剤としてバツクアツプリングを補強環に
強固に固定でき、両者の剥離を無くすことができ
る。``Effect of the invention'' As described above, according to this invention, a rubber circulation hole is bored in the horizontal part of the reinforcing ring, and the horizontal part of the reinforcing ring and the flange of the back up spring attached to it are connected to face each other. Since the rubber that has flowed in from the circulation hole of the reinforcing ring enters the gap and is bonded, the back-up spring can be firmly fixed to the reinforcing ring using this intruding rubber as an adhesive, and separation of the two can be eliminated.
第１図はこの考案のオイルシールの使用状態を
示す部分縦断面図、第２図は同成形状態を示す部
分縦断面図、第３図は従来のオイルシールを示す
部分縦断面図である。
１……補強環、１ａ……水平部、１ｂ……垂直
部、２……流通孔、３……シールリツプ、４……
ダストリツプ、５，６……ゴム被覆部、７……バ
ツクアツプリング、７′……フランジ、８……ゴ
ム。
FIG. 1 is a partial vertical cross-sectional view showing the oil seal of this invention in its used state, FIG. 2 is a partial vertical cross-sectional view showing the same molded state, and FIG. 3 is a partial vertical cross-sectional view showing a conventional oil seal. 1... Reinforcement ring, 1a... Horizontal part, 1b... Vertical part, 2... Distribution hole, 3... Seal lip, 4...
Dust strip, 5, 6...Rubber covering portion, 7...Backup spring, 7'...Flange, 8...Rubber.
Claims (1)
型の金属補強環の水平部からシールリツプの内周
面にかけて基部にフランジを有する環状のふつ素
樹脂製バツクアツプリングを接着してなるオイル
シールにおいて、前記補強環の水平部にゴムの流
通孔を穿設し、前記補強環の水平部とこれに添接
した前記バツクアツプリングのフランジとをそれ
らの対面間隙内に前記流通孔から流入したゴムを
侵入させて接着してなることを特徴とするオイル
シール。 An oil seal in which an annular fluorine resin back-up spring having a flange at the base is bonded from the horizontal part of a metal reinforcing ring with an L-shaped cross section loaded into a rubber oil seal body to the inner peripheral surface of the seal lip, A rubber circulation hole is bored in the horizontal part of the reinforcing ring, and the rubber flowing through the circulation hole is inserted into the gap between the horizontal part of the reinforcing ring and the flange of the backup spring attached thereto. An oil seal characterized by being penetrated and bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984083965U JPS60194666U (en) | 1984-06-06 | 1984-06-06 | oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984083965U JPS60194666U (en) | 1984-06-06 | 1984-06-06 | oil seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60194666U JPS60194666U (en) | 1985-12-25 |
| JPH0135983Y2 true JPH0135983Y2 (en) | 1989-11-01 |
Family
ID=30633067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984083965U Granted JPS60194666U (en) | 1984-06-06 | 1984-06-06 | oil seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60194666U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006057834A (en) * | 2004-07-22 | 2006-03-02 | Kayaba Ind Co Ltd | Seal construction of sliding part |
| JP5778238B2 (en) | 2013-11-18 | 2015-09-16 | Nok株式会社 | Manufacturing method of sealing device |
-
1984
- 1984-06-06 JP JP1984083965U patent/JPS60194666U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60194666U (en) | 1985-12-25 |
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