JPH02105659U - - Google Patents
Info
- Publication number
- JPH02105659U JPH02105659U JP1989013650U JP1365089U JPH02105659U JP H02105659 U JPH02105659 U JP H02105659U JP 1989013650 U JP1989013650 U JP 1989013650U JP 1365089 U JP1365089 U JP 1365089U JP H02105659 U JPH02105659 U JP H02105659U
- Authority
- JP
- Japan
- Prior art keywords
- sealing device
- sealing
- guide member
- sealing member
- sealed fluid
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 229920001821 foam rubber Polymers 0.000 claims 1
- 230000001788 irregular Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Description
第1図〜第3図は第一の手段を示し、第1図は
側面断面図、第2図は貫通孔を示す拡大断面図、
第3図はシール部材の一部切欠正面図、第4図、
第5図は第二の手段を示し、第4図は側面断面図
、第5図は密封流体供給量を示す特性曲線図、第
6図〜第9図は第三の手段を示し、第6図、第8
図は側面断面図、第7図はシール部材の斜視図、
第9図は可動軸の斜視図、第10図、第11図は
第四の手段を示し、第10図は側面断面図、第1
1図はシール部材の正面図、第12図は従来例を
示す側面断面図である。
符号の説明、1,10,17,23……ガイド
部材、2,11,18,24……可動軸、3,1
2,19,25……密封装置、4,13,21,
26……ハウジング、5,14,20,27……
シール部材、8……貫通孔、9……流体透過材、
22……溝、29,29′,30……斜面、A…
…密封流体、α,α′,β……傾斜角。
1 to 3 show the first means, FIG. 1 is a side sectional view, FIG. 2 is an enlarged sectional view showing a through hole,
Fig. 3 is a partially cutaway front view of the seal member, Fig. 4,
FIG. 5 shows the second means, FIG. 4 is a side sectional view, FIG. 5 is a characteristic curve diagram showing the sealing fluid supply amount, FIGS. Figure, 8th
The figure is a side sectional view, FIG. 7 is a perspective view of the sealing member,
FIG. 9 is a perspective view of the movable shaft, FIGS. 10 and 11 show the fourth means, FIG. 10 is a side sectional view, and FIG.
FIG. 1 is a front view of the sealing member, and FIG. 12 is a side sectional view showing a conventional example. Explanation of symbols: 1, 10, 17, 23... Guide member, 2, 11, 18, 24... Movable shaft, 3, 1
2, 19, 25... Sealing device, 4, 13, 21,
26... Housing, 5, 14, 20, 27...
Seal member, 8... through hole, 9... fluid permeable material,
22...Groove, 29, 29', 30...Slope, A...
...Sealed fluid, α, α', β...Inclination angle.
Claims (1)
の外周面に接触することにより、ハウジング内を
密封流体側とガイド部材側とに区分するシール部
材を形成し、このシール部材に、密封流体側とガ
イド部材側とを連通する貫通孔を設けたことを特
徴とする密封装置。 (2) 貫通孔が、流体透過材を備えたものである
請求項1に記載の密封装置。 (3) 請求項1記載のシール部材を多孔質弾性材
で形成した密封装置。 (4) 多孔質弾性材が、発泡ウレタンである請求
項3に記載の密封装置。 (5) 多孔質弾性材が、発泡ゴムである請求項3
に記載の密封装置。 (6) 請求項1記載のシール部材を形成し、可動
体とシール部材との接触面に、密封流体側とガイ
ド部材側とを連通する溝を設けた密封装置。 (7) 溝が可動体に設けられている請求項6に記
載の密封装置。 (8) 溝がシール部材に設けられている請求項6
に記載の密封装置。 (9) 請求項1記載のシール部材を形成し、この
シール部材の先端部に密封流体側とガイド部材側
の可動軸の外周面に向けて別々に傾斜角を保持す
る円周溝の斜面を背中合せに設けてなる密封装置
において、 前記斜面のいずれか一方を、異なる傾斜角を保
持するように円周方向に不規則化した密封装置。[Claims for Utility Model Registration] (1) Forming a seal member that divides the inside of the housing into a sealed fluid side and a guide member side by contacting the outer peripheral surface of a movable shaft slidably held by a guide member. A sealing device characterized in that the sealing member is provided with a through hole that communicates the sealed fluid side and the guide member side. (2) The sealing device according to claim 1, wherein the through hole is provided with a fluid permeable material. (3) A sealing device in which the sealing member according to claim 1 is formed of a porous elastic material. (4) The sealing device according to claim 3, wherein the porous elastic material is urethane foam. (5) Claim 3, wherein the porous elastic material is foam rubber.
The sealing device described in . (6) A sealing device comprising the sealing member according to claim 1 and having a groove communicating between the sealed fluid side and the guide member side on the contact surface between the movable body and the sealing member. (7) The sealing device according to claim 6, wherein the groove is provided in the movable body. (8) Claim 6, wherein the groove is provided in the sealing member.
The sealing device described in . (9) The sealing member according to claim 1 is formed, and the distal end of the sealing member is provided with an inclined surface of a circumferential groove that maintains an inclination angle separately toward the outer peripheral surface of the movable shaft on the sealed fluid side and the guide member side. A sealing device provided back to back, wherein either one of the slopes is irregular in the circumferential direction so as to maintain a different angle of inclination.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989013650U JPH02105659U (en) | 1989-02-09 | 1989-02-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989013650U JPH02105659U (en) | 1989-02-09 | 1989-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02105659U true JPH02105659U (en) | 1990-08-22 |
Family
ID=31224138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989013650U Pending JPH02105659U (en) | 1989-02-09 | 1989-02-09 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02105659U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009203989A (en) * | 2008-02-26 | 2009-09-10 | Jtekt Corp | Bearing device |
-
1989
- 1989-02-09 JP JP1989013650U patent/JPH02105659U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009203989A (en) * | 2008-02-26 | 2009-09-10 | Jtekt Corp | Bearing device |