JPH0419646U - - Google Patents
Info
- Publication number
- JPH0419646U JPH0419646U JP5917590U JP5917590U JPH0419646U JP H0419646 U JPH0419646 U JP H0419646U JP 5917590 U JP5917590 U JP 5917590U JP 5917590 U JP5917590 U JP 5917590U JP H0419646 U JPH0419646 U JP H0419646U
- Authority
- JP
- Japan
- Prior art keywords
- piston body
- piston
- guide tube
- sealing
- sealing mechanism
- 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 8
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案を採用した自己密封式ピストン
の第１実施例を示す縦断面図、第２図は同じく斜
視図、第３図は作動を説明するための第１図と同
じ縦断面図、第４図は本考案の第２実施例を示す
縦断面図、第５図は従来の技術を示す断面図であ
る。
６……ピストン本体、７……ガイド筒、９……
保持面、１０１……自己密封ピストン、１３，１
４……シール機構、１３１……シールリング溝、
１３２……シールリング、１４１……リング状態
、１４２……円環。
Fig. 1 is a longitudinal sectional view showing a first embodiment of a self-sealing piston adopting the present invention, Fig. 2 is a perspective view thereof, and Fig. 3 is a longitudinal sectional view same as Fig. 1 for explaining the operation. , FIG. 4 is a longitudinal sectional view showing a second embodiment of the present invention, and FIG. 5 is a sectional view showing a conventional technique. 6... Piston body, 7... Guide cylinder, 9...
Retaining surface, 101...Self-sealing piston, 13,1
4... Seal mechanism, 131... Seal ring groove,
132...Seal ring, 141...Ring state, 142...Circle.
Claims (1)
、該ピストン本体の外周に当接配置されてピスト
ン本体を回動自在に保持する球面状の保持面を有
し、かつ、径方向に伸縮可能なガイド筒とを備え
、かつ該ガイド筒と前記ピストン本体との間を密
封するシール機構を、前記ガイド筒又はピストン
本体に設けたことを特徴とする自己密封式ピスト
ン。 (2) ガイド筒の内周又はピストン本体の外周に
シールリングを取付けて、ガイド筒とピストン本
体との間を密封するシール機構を構成した実用新
案登録請求の範囲第１項記載の自己密封式ピスト
ン。 (3) ピストン本体の内周に、該ピストン本体よ
り高い熱膨張率を有する円環を取付けてシール機
構を構成した実用新案登録請求の範囲第１項記載
の自己密封式ピストン。[Claims for Utility Model Registration] (1) A piston body having a spherical outer circumferential surface and a spherical holding surface that is placed in contact with the outer circumference of the piston body and rotatably holds the piston body. and a radially expandable guide tube, and a sealing mechanism for sealing between the guide tube and the piston body is provided on the guide tube or the piston body. type piston. (2) The self-sealing type as set forth in claim 1 of the utility model registration claim, in which a seal ring is attached to the inner circumference of the guide tube or the outer circumference of the piston body to constitute a sealing mechanism that seals between the guide tube and the piston body. piston. (3) The self-sealing piston according to claim 1, wherein a sealing mechanism is constructed by attaching a ring having a higher coefficient of thermal expansion than the piston body to the inner periphery of the piston body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917590U JPH0419646U (en) | 1990-06-06 | 1990-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917590U JPH0419646U (en) | 1990-06-06 | 1990-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419646U true JPH0419646U (en) | 1992-02-19 |
Family
ID=31585444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5917590U Pending JPH0419646U (en) | 1990-06-06 | 1990-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419646U (en) |
-
1990
- 1990-06-06 JP JP5917590U patent/JPH0419646U/ja active Pending
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