JPH044558U - - Google Patents
Info
- Publication number
- JPH044558U JPH044558U JP4538190U JP4538190U JPH044558U JP H044558 U JPH044558 U JP H044558U JP 4538190 U JP4538190 U JP 4538190U JP 4538190 U JP4538190 U JP 4538190U JP H044558 U JPH044558 U JP H044558U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- mounting groove
- seal
- ring
- seal ring
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000004323 axial length Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の実施例に係るピストンシール
の装着状態を示す断面図、第２図はピストンの全
体構造を示す断面図、第３図はシール性について
の試験結果を示すグラフ、第４図は最低作動圧に
ついての試験結果を示すグラフである。
１……ピストン、２……装着溝、３……シール
リング、４……ゴムリング、５……シリンダ。
Fig. 1 is a sectional view showing the installed state of a piston seal according to an embodiment of the present invention, Fig. 2 is a sectional view showing the overall structure of the piston, Fig. 3 is a graph showing test results regarding sealing performance, and Fig. 4 The figure is a graph showing the test results regarding the minimum operating pressure. 1...Piston, 2...Mounting groove, 3...Seal ring, 4...Rubber ring, 5...Cylinder.
補正 平３．４．２５
実用新案登録請求の範囲を次のように補正する
。Amendment April 25, 2003 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
ピストン１の外周面に形成した装着溝２に装着
されてシリンダ５の内周壁と摺接するピストンシ
ールにおいて、前記内周壁と摺接する合成樹脂製
のシールリング３と前記シールリング３の溝底側
に配置されるゴムリング４とを有し、前記シール
リング３の外径寸法を前記内周壁の径寸法と一致
させ、前記ゴムリング４の内径寸法を前記装着溝
２の溝底部の径寸法と一致させ、前記シールリン
グ３の内径寸法と前記ゴムリング４の外径寸法を
一致させ、前記シールリング３の軸方向長さを前
記装着溝２の軸方向長さ以下とし、前記ゴムリン
グ４の軸方向長さを前記装着溝２の軸方向長さ以
下としたことを特徴とするピストンシール。[Claims for Utility Model Registration] A piston seal that is installed in a mounting groove 2 formed on the outer peripheral surface of a piston 1 and slides on the inner peripheral wall of a cylinder 5 includes a synthetic resin seal ring 3 that slides on the inner peripheral wall, and a seal ring 3 made of synthetic resin that slides on the inner peripheral wall; A rubber ring 4 is arranged on the bottom side of the groove of the seal ring 3, and the outer diameter of the seal ring 3 is made to match the diameter of the inner peripheral wall, and the inner diameter of the rubber ring 4 is set to match the diameter of the inner peripheral wall. The inner diameter of the seal ring 3 and the outer diameter of the rubber ring 4 are made to match, and the axial length of the seal ring 3 is equal to or less than the axial length of the mounting groove 2. A piston seal characterized in that the axial length of the rubber ring 4 is equal to or less than the axial length of the mounting groove 2 .
Claims (1)
されてシリンダ５の内周壁と摺接するピストンシ
ールにおいて、合成樹脂製のシールリング３とゴ
ムリング４との組み合わせよりなり、前記両リン
グ３，４を前記装着溝２内で潰し代をもたない寸
法に設定したことを特徴とするピストンシール。 A piston seal that is installed in a mounting groove 2 formed on the outer circumferential surface of the piston 1 and comes into sliding contact with the inner circumferential wall of the cylinder 5 is made of a combination of a synthetic resin seal ring 3 and a rubber ring 4, and both the rings 3, 4 A piston seal characterized in that the dimensions are set such that there is no crushing allowance within the mounting groove 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990045381U JPH087169Y2 (en) | 1990-04-27 | 1990-04-27 | Piston seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990045381U JPH087169Y2 (en) | 1990-04-27 | 1990-04-27 | Piston seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044558U true JPH044558U (en) | 1992-01-16 |
| JPH087169Y2 JPH087169Y2 (en) | 1996-03-04 |
Family
ID=31559508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990045381U Expired - Lifetime JPH087169Y2 (en) | 1990-04-27 | 1990-04-27 | Piston seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087169Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5073747U (en) * | 1973-11-12 | 1975-06-27 |
-
1990
- 1990-04-27 JP JP1990045381U patent/JPH087169Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5073747U (en) * | 1973-11-12 | 1975-06-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087169Y2 (en) | 1996-03-04 |