JPH0444565U - - Google Patents
Info
- Publication number
- JPH0444565U JPH0444565U JP8686490U JP8686490U JPH0444565U JP H0444565 U JPH0444565 U JP H0444565U JP 8686490 U JP8686490 U JP 8686490U JP 8686490 U JP8686490 U JP 8686490U JP H0444565 U JPH0444565 U JP H0444565U
- Authority
- JP
- Japan
- Prior art keywords
- slide ring
- spring
- ring
- seal
- piston
- 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
Landscapes
- Sealing Devices (AREA)
Description
図面第１〜３図はこの考案の実施例を示すもの
で、第１図は断面図、第２図はスライドリングの
正面図、第３図は第２図の矢視図、第４図は従
来のシール構造を示す断面図である。
１……ピストンロツド、２……軸受部、４……
シール溝、５……エキスパンダリング、６……ス
ライドリング、７……バツクアツプリング、９…
…すき間、１０……スリツト。
Figures 1 to 3 show an embodiment of this invention; Figure 1 is a sectional view, Figure 2 is a front view of the slide ring, Figure 3 is a view taken in the direction of the arrow in Figure 2, and Figure 4 is a cross-sectional view. FIG. 2 is a cross-sectional view showing a conventional seal structure. 1...Piston rod, 2...Bearing section, 4...
Seal groove, 5... Expander ring, 6... Slide ring, 7... Backup spring, 9...
...Gap, 10...Slit.
Claims (1)
形成し、このシール溝に圧抜き用のスリツトを形
成したエキスパンダリングを内装し、上記エキス
パンダリングの内周または外周に接してバツクア
ツプリングおよびスライドリングを設け、上記バ
ツクアツプリングの一側にスライドリングの一側
を沿わせるとともに、スライドリングの他側に、
シリンダのボトム側室に連通する軸受部の内周ま
たはピストンの外周すき間を臨ませる一方、バツ
クアツプリングの他側を、オイルシールを介して
外部に臨ませたシール構造において、上記スライ
ドリングの軸線方向両側面に、圧抜き用のスリツ
トを形成したことを特徴とするシール構造。 A seal groove is formed in the bearing part or piston of the cylinder, and an expander ring with a pressure relief slit is installed inside the seal groove, and a back-up spring and a slide ring are attached to the inner or outer circumference of the expander ring. , one side of the slide ring is placed along one side of the back up spring, and the other side of the slide ring is provided with a
In a seal structure in which the inner periphery of the bearing part communicating with the bottom side chamber of the cylinder or the outer periphery gap of the piston is exposed, while the other side of the back-up spring is exposed to the outside via an oil seal, the axial direction of the slide ring is Seal structure characterized by pressure relief slits formed on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8686490U JPH0444565U (en) | 1990-08-20 | 1990-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8686490U JPH0444565U (en) | 1990-08-20 | 1990-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444565U true JPH0444565U (en) | 1992-04-15 |
Family
ID=31818766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8686490U Pending JPH0444565U (en) | 1990-08-20 | 1990-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650437A (en) * | 1991-03-04 | 1994-02-22 | W S Shamban & Co | Pressure release type seal structure |
| JPH0755013A (en) * | 1992-09-09 | 1995-03-03 | Fichtel & Sachs Ag | Cylinder for hydraulic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249055B2 (en) * | 1980-12-29 | 1987-10-16 | Matsushita Electric Ind Co Ltd |
-
1990
- 1990-08-20 JP JP8686490U patent/JPH0444565U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249055B2 (en) * | 1980-12-29 | 1987-10-16 | Matsushita Electric Ind Co Ltd |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650437A (en) * | 1991-03-04 | 1994-02-22 | W S Shamban & Co | Pressure release type seal structure |
| JPH0755013A (en) * | 1992-09-09 | 1995-03-03 | Fichtel & Sachs Ag | Cylinder for hydraulic equipment |