JPS5933790B2 - oil seal - Google Patents
oil sealInfo
- Publication number
- JPS5933790B2 JPS5933790B2 JP53040069A JP4006978A JPS5933790B2 JP S5933790 B2 JPS5933790 B2 JP S5933790B2 JP 53040069 A JP53040069 A JP 53040069A JP 4006978 A JP4006978 A JP 4006978A JP S5933790 B2 JPS5933790 B2 JP S5933790B2
- Authority
- JP
- Japan
- Prior art keywords
- lip
- reinforcing ring
- oil
- adhesive
- rubber
- 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)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明はオイルシールに関し、更に詳しくは金属補強環
に対するゴム部分の接着部の構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil seal, and more particularly to the structure of a bonded portion of a rubber portion to a metal reinforcing ring.
例えば、第１図に示す如く、金属材料をもつて製せられ
、略Ｌ字形状の断面を示す補強環１の全面に接着剤を塗
布し、次いで補強環１の内周端部を切削して接着剤非塗
布面４を形成した後に、ゴム状弾性材料を用いて製せら
れたオイルリップ５、およびダストリップ８を補強環１
とともに一体加硫成形してなるオイルシールにおいては
、オイルリップ５とダストリップ８との間に接着剤非塗
布面４が介在しているために図示される如くオイルリッ
プ５とダストリップ８は互いに別体となり、加硫成形に
当つてはそれぞれに対し別個のゴム材料片を用意し補強
環１を挾む如くなして成形型のキャビティ内に挿入する
ことを必要とし製作工程面において繁雑、不経済である
。For example, as shown in FIG. 1, adhesive is applied to the entire surface of a reinforcing ring 1 made of a metal material and having an approximately L-shaped cross section, and then the inner peripheral end of the reinforcing ring 1 is cut. After forming the non-adhesive surface 4, an oil lip 5 made of a rubber-like elastic material and a dust lip 8 are attached to the reinforcing ring 1.
In the oil seal formed by integrally vulcanizing the oil lip 5 and the dust lip 8, the non-adhesive surface 4 is interposed between the oil lip 5 and the dust lip 8, so that the oil lip 5 and the dust lip 8 do not touch each other as shown in the figure. They are separate pieces, and during vulcanization molding, it is necessary to prepare separate pieces of rubber material for each and insert them into the cavity of the mold, sandwiching the reinforcing ring 1, which makes the manufacturing process complicated and tedious. It's the economy.
本発明は前述の問題点に鑑み、補強環の内周端部のダス
トリップが接着される部位に円周方向に配列して複数個
の連通孔を穿ち、加硫成形時においてゴム材料が該連通
孔を通して流れ、オイルリップとダストリップとを互い
に連接させて形成する様になすものである。In view of the above-mentioned problems, the present invention has provided a plurality of communication holes arranged in the circumferential direction at the part of the inner peripheral end of the reinforcing ring to which the dust lip is bonded, so that the rubber material can be formed during vulcanization molding. The fluid flows through the communication hole and forms an oil lip and a dust lip that are connected to each other.
以下、第２図により本発明の実施例について説明する。Embodiments of the present invention will be described below with reference to FIG.
補強環１は内周端部に接着剤非塗布面４を備え、内周端
部近傍に円周方向に配列されて連通孔９を穿たれており
、補強環１の両側面に接着されたオイルリップ５とダス
トリップ８が連通孔９を通して互いに一体的に接続され
てシール部材６を形成している。オイルリップ５と接着
剤非塗布面４とは互いに接触状態にあるが接着されてい
ない。本実施例の製作に当つてはプレス加工により断面
が略Ｌ字形状を呈しかつ内周端部近傍に円周方向に配列
された連通孔９を備える如くに加工された補強環１の全
表面に接着剤を塗布した後に、補強環１の内周先端部を
旋削、研削等により接着剤非塗布面４を形成し、次いで
、成形型の成形用キャビティ内に補強環１と１片のゴム
材料片とを互いに重ねて挿入し圧縮、加熱して連通孔９
を通して互いに接続されたオイルリップ５およびダスト
リップ８からなるシール部材６を成形するとともに補強
環１に接着させるものである。本発明のオイルシールが
前記した構成要件を備えていることにより、加硫成形に
当つて１片のゴム材料片のみによつてオイルリップおよ
びダストリツプを成形することを可能となし、加工時に
おける作業能率、経済性における作用効果が大であり、
かつ製品におけるオイルリツプとダストリツプの結合を
強固ならしめ、耐久性においても大なる作用効果をもた
らす。The reinforcing ring 1 has a non-adhesive surface 4 at the inner peripheral end, and has communication holes 9 arranged in the circumferential direction near the inner peripheral end, and is glued to both sides of the reinforcing ring 1. The oil lip 5 and the dust lip 8 are integrally connected to each other through a communication hole 9 to form a seal member 6. The oil lip 5 and the non-adhesive surface 4 are in contact with each other but are not adhered to each other. In manufacturing this embodiment, the entire surface of the reinforcing ring 1 was pressed so that the cross section was approximately L-shaped and provided with communicating holes 9 arranged in the circumferential direction near the inner peripheral end. After applying adhesive, the inner tip of the reinforcing ring 1 is turned or ground to form an adhesive-free surface 4, and then the reinforcing ring 1 and a piece of rubber are placed in the molding cavity of the mold. The pieces of material are stacked and inserted, compressed and heated to form the communication hole 9.
A sealing member 6 consisting of an oil lip 5 and a dust lip 8 connected to each other through the seal member 6 is formed and adhered to the reinforcing ring 1. Since the oil seal of the present invention has the above-described structural requirements, it is possible to form an oil lip and a dust lip using only one piece of rubber material during vulcanization molding, and this makes it possible to form an oil lip and a dust lip during vulcanization molding. It has great effects on efficiency and economy,
It also strengthens the bond between the oil lip and dust lip of the product, and has great effects in terms of durability.
第１図は本発明を適用せんとするオイルシールの構造を
示す断面図、第２図は本発明によるオイルシールの一実
施例を示す断面図である。
１・・・・・・補強環、４・・・・・・接着剤非塗布面
、５・・・・・・オイルリツプ、６・・・・・・シール
部材、８・・・・・・ダストリツプ、９・・・・・・連
通孔。FIG. 1 is a sectional view showing the structure of an oil seal to which the present invention is applied, and FIG. 2 is a sectional view showing an embodiment of the oil seal according to the present invention. 1...Reinforcement ring, 4...Adhesive-free surface, 5...Oil lip, 6...Seal member, 8...Dust lip , 9...Communication hole.
Claims (1)
呈し、内方端部近傍に円周方向に配列された連通孔９を
穿たれ、内方端部に接着剤非塗布面４を形成している補
強環１、ゴム状弾性材料をもつて製せられ、前記補強環
１の内側面に、前記接着剤非塗布面４を残して接着され
たオイルリップ５及びゴム状弾性材料をもつて製せられ
、前記補強環１の内方端部近傍の外側面に接着され、前
記オイルリップ５に対し、前記連通孔９を通して接合さ
れているダストリップ８から成るオイルシール。1 Manufactured from a metal plate material, exhibiting a substantially L-shaped cross-sectional shape, having communicating holes 9 arranged in the circumferential direction near the inner end, and having an adhesive-free surface on the inner end. 4, a reinforcing ring 1 made of a rubber-like elastic material, and an oil lip 5 and a rubber-like elastic material are bonded to the inner surface of the reinforcing ring 1, leaving the non-adhesive surface 4. An oil seal consisting of a dust lip 8 made of a material, adhered to the outer surface near the inner end of the reinforcing ring 1, and joined to the oil lip 5 through the communication hole 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53040069A JPS5933790B2 (en) | 1978-04-05 | 1978-04-05 | oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53040069A JPS5933790B2 (en) | 1978-04-05 | 1978-04-05 | oil seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53143855A JPS53143855A (en) | 1978-12-14 |
| JPS5933790B2 true JPS5933790B2 (en) | 1984-08-17 |
Family
ID=12570631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53040069A Expired JPS5933790B2 (en) | 1978-04-05 | 1978-04-05 | oil seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933790B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3720930A1 (en) * | 1987-06-25 | 1989-01-05 | Freudenberg Carl Fa | RADIAL SHAFT SEAL |
| JPH03121271U (en) * | 1990-03-26 | 1991-12-12 | ||
| JP2013190081A (en) * | 2012-03-15 | 2013-09-26 | Jtekt Corp | Rolling bearing device |
-
1978
- 1978-04-05 JP JP53040069A patent/JPS5933790B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53143855A (en) | 1978-12-14 |
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