JPH02113065U - - Google Patents
Info
- Publication number
- JPH02113065U JPH02113065U JP2248789U JP2248789U JPH02113065U JP H02113065 U JPH02113065 U JP H02113065U JP 2248789 U JP2248789 U JP 2248789U JP 2248789 U JP2248789 U JP 2248789U JP H02113065 U JPH02113065 U JP H02113065U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- grease
- wall surface
- seal
- groove
- 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
- 239000004519 grease Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Sealing Devices (AREA)
Description
第１図は本考案を建設機械等のリヤシヤシ部に
適用した場合の実施例を示す概略平面図、第２図
はその要部の一部切断平面図、第３図はＯリング
溝部の拡大断面図、第４図ａ，ｂはＯリング溝形
状の他の実施例を示す拡大断面図、第５図は本考
案の作用説明図である。第６図はＯリング溝の一
般的な形状を示す図面である。
５ｂ……シール壁面、７……（グリース充填）
隙間、８……Ｏリング、９……Ｏリング溝、９ａ
……Ｏリング受部、９ｂ……（Ｏリング）溝壁面
。
Fig. 1 is a schematic plan view showing an embodiment in which the present invention is applied to the rear palm of a construction machine, etc. Fig. 2 is a partially cutaway plan view of the main part thereof, and Fig. 3 is an enlarged cross-section of the O-ring groove. 4A and 4B are enlarged sectional views showing other embodiments of the O-ring groove shape, and FIG. 5 is an explanatory view of the operation of the present invention. FIG. 6 is a drawing showing the general shape of an O-ring groove. 5b... Seal wall surface, 7... (grease filling)
Gap, 8...O-ring, 9...O-ring groove, 9a
...O-ring receiving part, 9b... (O-ring) groove wall surface.
Claims (1)
Ｏリングの溝壁面とに接触して内部のグリースと
外部のダストに対するシールを行う構成において
、該Ｏリング溝の深さを内側の該シール位置から
該Ｏリングの径方向外側に行くに従つてスロープ
状に大きく形成し、グリース注入時にはその注入
圧によりＯリングが拡径して該Ｏリングと該シー
ル壁面ないし溝壁面との間に間隙が形成されるよ
うにしたことを特徴とするＯリングを用いたグリ
ース兼ダストシール装置。 When the O-ring is in the sealing position, the O-ring groove is in contact with the sealing wall and the O-ring groove wall to seal against internal grease and external dust. The O-ring is formed in a slope shape that increases toward the outside in the radial direction, and when grease is injected, the diameter of the O-ring expands due to the injection pressure, forming a gap between the O-ring and the seal wall surface or groove wall surface. A grease and dust seal device using an O-ring, characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2248789U JPH0716938Y2 (en) | 1989-02-27 | 1989-02-27 | Grease / dust seal device using O-ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2248789U JPH0716938Y2 (en) | 1989-02-27 | 1989-02-27 | Grease / dust seal device using O-ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02113065U true JPH02113065U (en) | 1990-09-10 |
| JPH0716938Y2 JPH0716938Y2 (en) | 1995-04-19 |
Family
ID=31240655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2248789U Expired - Lifetime JPH0716938Y2 (en) | 1989-02-27 | 1989-02-27 | Grease / dust seal device using O-ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716938Y2 (en) |
-
1989
- 1989-02-27 JP JP2248789U patent/JPH0716938Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716938Y2 (en) | 1995-04-19 |