JP5985360B2 - 密封装置 - Google Patents
密封装置 Download PDFInfo
- Publication number
- JP5985360B2 JP5985360B2 JP2012244080A JP2012244080A JP5985360B2 JP 5985360 B2 JP5985360 B2 JP 5985360B2 JP 2012244080 A JP2012244080 A JP 2012244080A JP 2012244080 A JP2012244080 A JP 2012244080A JP 5985360 B2 JP5985360 B2 JP 5985360B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- edge portion
- lip edge
- sealing
- lip
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims description 57
- 230000002093 peripheral effect Effects 0.000 claims description 28
- 238000005086 pumping Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 16
- 239000003921 oil Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
21 リップエッジ部
23 反密封空間側円錐面
24 ねじ突条
24a リップエッジ部21側のねじ部
24b 反密封空間B側のねじ部
25 切欠
200 回転軸(回転体)
A 密封空間
B 反密封空間
S 密接領域
Claims (2)
- 密封空間側を向いて延びるシールリップを備え、このシールリップの内周面に、回転体の外周面と摺動可能に密接されるリップエッジ部と、このリップエッジ部から反密封空間側へ向けて大径になる反密封空間側円錐面が形成され、前記反密封空間側円錐面に、前記回転体が一定方向へ回転することによって前記リップエッジ部側へ向けてねじポンプ作用を生じる複数のねじ突条が形成され、各ねじ突条に、このねじ突条を前記リップエッジ部側のねじ部と反密封空間側のねじ部に分割する切欠を形成し、円周方向に隣接するねじ突条の切欠の軸方向位置が互いに異なることを特徴とする密封装置。
- 円周方向へ隣接するねじ突条のうち、相対的に回転体の回転方向側に位置するねじ突条に形成された切欠が、相対的に回転体の回転方向と反対側に位置するねじ突条に形成された切欠よりも反密封空間側に位置することを特徴とする請求項1に記載の密封装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012244080A JP5985360B2 (ja) | 2012-11-06 | 2012-11-06 | 密封装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012244080A JP5985360B2 (ja) | 2012-11-06 | 2012-11-06 | 密封装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014092244A JP2014092244A (ja) | 2014-05-19 |
JP5985360B2 true JP5985360B2 (ja) | 2016-09-06 |
Family
ID=50936466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012244080A Active JP5985360B2 (ja) | 2012-11-06 | 2012-11-06 | 密封装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5985360B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11408510B2 (en) * | 2017-08-14 | 2022-08-09 | Nok Corporation | Sealing apparatus |
WO2020255591A1 (ja) * | 2019-06-20 | 2020-12-24 | Nok株式会社 | 密封装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6296166U (ja) * | 1985-12-06 | 1987-06-19 | ||
JP2569569Y2 (ja) * | 1991-09-30 | 1998-04-28 | エヌオーケー株式会社 | 密封装置 |
JPH0590044U (ja) * | 1992-04-01 | 1993-12-07 | 光洋精工株式会社 | オイルシール |
JP2000179700A (ja) * | 1998-12-17 | 2000-06-27 | Nok Corp | 密封装置 |
-
2012
- 2012-11-06 JP JP2012244080A patent/JP5985360B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2014092244A (ja) | 2014-05-19 |
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