JPH0471871U - - Google Patents
Info
- Publication number
- JPH0471871U JPH0471871U JP1990113964U JP11396490U JPH0471871U JP H0471871 U JPH0471871 U JP H0471871U JP 1990113964 U JP1990113964 U JP 1990113964U JP 11396490 U JP11396490 U JP 11396490U JP H0471871 U JPH0471871 U JP H0471871U
- Authority
- JP
- Japan
- Prior art keywords
- metal ring
- sealing
- reinforcing flange
- fluid side
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 4
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
第１図は本考案の一実施例に係る密封装置の要
部縦断面図、第２図は第１図の−線に沿う要
部断面図、第３図は従来の密封装置の要部縦断面
図である。
符号の説明、１……密封装置、２……ハウジン
グ、３……軸孔、４……可動軸、５……金属環、
６……シールリツプ、７……ゴム状弾性体、８…
…外筒部、９……補強フランジ、９ａ……密封流
体側端面、１０……外周ゴム部、１１……内周ゴ
ム部、１２……スプリング、１３……バツクアツ
プリング、１４……ダストリツプ、１５……付け
根部、１６……連通溝。
Fig. 1 is a vertical sectional view of the main part of a sealing device according to an embodiment of the present invention, Fig. 2 is a sectional view of the main part along the - line in Fig. 1, and Fig. 3 is a longitudinal sectional view of the main part of a conventional sealing device. It is a front view. Explanation of symbols, 1...Sealing device, 2...Housing, 3...Shaft hole, 4...Movable shaft, 5...Metal ring,
6...Seal lip, 7...Rubber-like elastic body, 8...
...Outer cylinder part, 9...Reinforcement flange, 9a...Sealed fluid side end face, 10...Outer rubber part, 11...Inner circumference rubber part, 12...Spring, 13...Backup spring, 14...Dust lip , 15... Root portion, 16... Communication groove.
Claims (1)
動自在に挿入される可動軸との間の隙間を密封す
るもので、 前記ハウジングの軸孔内周に嵌合される金属環
と、この金属環に一体的に焼付固定される軸方向
密封流体側に延びて先端が可動軸表面に密封接触
するシールリツプを備えたゴム状弾性体と、を備
え、 前記シールリツプと可動軸との隙間に樹脂製の
バツクアツプリングを介在させ、該バツクアツプ
リングの反密封流体側端面を金属環の一端から半
径方向内方に向かつて延びる補強フランジの密封
流体側端面に密接させて支持した密封装置におい
て、 前記金属環の補強フランジ内端に軸方向反密封
流体側に延びるゴム状弾性体製のダストリツプを
設け、 前記金属環の補強フランジの密封流体側端面に
前記補強フランジに焼付固定されたゴム状弾性体
と前記ダストリツプとを結ぶ連通溝を円周方向に
複数設けたことを特徴とする密封装置。[Claims for Utility Model Registration] A device that seals a gap between a housing and a movable shaft that is inserted into a shaft hole of the housing so as to be relatively movable, and is fitted into the inner periphery of the shaft hole of the housing. a metal ring; and a rubber-like elastic body that is integrally baked and fixed to the metal ring and has a seal lip that extends toward the sealing fluid side in the axial direction and has a tip that makes sealing contact with the surface of the movable shaft, and the seal lip and the movable shaft A resin back-up spring is interposed in the gap between the back-up spring and the end face of the back-up spring on the side opposite to the sealed fluid is supported in close contact with the end face of the reinforcing flange on the sealed fluid side that extends radially inward from one end of the metal ring. In the sealing device, a dust strip made of a rubber-like elastic body is provided at the inner end of the reinforcing flange of the metal ring and extends in the axial direction toward the sealing fluid side, and is sewn and fixed to the reinforcing flange on the end surface of the reinforcing flange of the metal ring on the sealing fluid side. A sealing device characterized in that a plurality of communication grooves are provided in the circumferential direction to connect the rubber-like elastic body and the dust strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990113964U JPH083760Y2 (en) | 1990-10-30 | 1990-10-30 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990113964U JPH083760Y2 (en) | 1990-10-30 | 1990-10-30 | Sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0471871U true JPH0471871U (en) | 1992-06-25 |
| JPH083760Y2 JPH083760Y2 (en) | 1996-01-31 |
Family
ID=31861598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990113964U Expired - Lifetime JPH083760Y2 (en) | 1990-10-30 | 1990-10-30 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083760Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52134963A (en) * | 1976-05-06 | 1977-11-11 | Freudenberg Carl | Elements of sealing device |
| JPS5917371U (en) * | 1982-07-26 | 1984-02-02 | キ−パ−株式会社 | Oil seal with backup spring |
-
1990
- 1990-10-30 JP JP1990113964U patent/JPH083760Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52134963A (en) * | 1976-05-06 | 1977-11-11 | Freudenberg Carl | Elements of sealing device |
| JPS5917371U (en) * | 1982-07-26 | 1984-02-02 | キ−パ−株式会社 | Oil seal with backup spring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083760Y2 (en) | 1996-01-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |