JPH083750Y2 - Assembly structure of seal ring - Google Patents
Assembly structure of seal ringInfo
- Publication number
- JPH083750Y2 JPH083750Y2 JP1993016038U JP1603893U JPH083750Y2 JP H083750 Y2 JPH083750 Y2 JP H083750Y2 JP 1993016038 U JP1993016038 U JP 1993016038U JP 1603893 U JP1603893 U JP 1603893U JP H083750 Y2 JPH083750 Y2 JP H083750Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal ring
- ring
- diameter
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本考案はピストンの外周に一連の
凹溝として予め刻設されているシール溝にシールリング
を組付ける構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for assembling a seal ring into a seal groove which is previously formed as a series of concave grooves on the outer circumference of a piston.
【０００２】[0002]
【従来の技術及び考案が解決しようとする課題】一般に
シールリングは樹脂製のため、Ｏ−リングのように引き
伸ばして組付けることは不可能である。そこで従来は図
３に示すようにピストン（１）のシールリング組付側の
外周を内側が大径で外側が小径となる２段階状に切欠き
この内側段部にＯ−リング（４）を嵌合した後、その上
にシールリング（５）を嵌合してから外側段部にストッ
パー（７）を圧入してシール溝（２）をあとから形成す
るようにしている。このためストッパーの圧入時に圧入
屑が発生する他、シールかみ込みの問題があり、又部品
数も増える等の欠点がある。2. Description of the Related Art Generally, since a seal ring is made of resin, it cannot be extended and assembled like an O-ring. Therefore, conventionally, as shown in FIG. 3, the outer circumference of the seal ring assembly side of the piston (1) is notched in two steps such that the inside has a large diameter and the outside has a small diameter, and an O-ring (4) is provided on the inside step. After fitting, the seal ring (5) is fitted thereon, and then the stopper (7) is press-fitted into the outer step portion to form the seal groove (2) later. For this reason, there are problems such as press-fitting waste when the stopper is press-fitted, a problem of seal entrapment, and an increase in the number of parts.
【０００３】そこで本考案ではシール溝をピストンの外
周に始めから予め作っておき、これにシールリングを組
付ける構造について検討の結果、本考案に至ったもので
ある。Therefore, in the present invention, as a result of studying a structure in which a seal groove is preliminarily formed on the outer circumference of the piston from the beginning and a seal ring is assembled to the seal groove, the present invention has been achieved.
【０００４】[0004]
【課題を解決するための手段】本考案の要旨とする所
は、ピストン外周に設けたシール溝に、該ピストン外径
よりも外径は大きく且つ内径は小さい非伸縮性のシール
リングを、Ｏリングを介して組付ける構造において、上
記シール溝に隣接する一方の側をシールリングの内径よ
り小さい小径端部とし、該シール溝にＯリングを介して
シールリングを嵌入し、シールリングと該小径端部との
間隙に、外径はシールリングの内径より大きく且つ内径
は該小径端部の外径より小さいバックアップリングを装
着したことを特徴とするシールリングの組付構造に存
し、これにより所期の目的を収めたものである。The gist of the present invention is to provide a non-stretchable seal ring having a larger outer diameter and a smaller inner diameter than the piston outer diameter in a seal groove provided on the outer circumference of the piston. In the structure assembled via a ring, one side adjacent to the seal groove is made a small-diameter end smaller than the inner diameter of the seal ring, and the seal ring is fitted into the seal groove via an O-ring, and the seal ring and the small diameter are attached. A seal ring assembly structure is characterized in that a backup ring having an outer diameter larger than the inner diameter of the seal ring and an inner diameter smaller than the outer diameter of the small-diameter end portion is mounted in the gap between the end portions. It contains the intended purpose.
【０００５】[0005]
【作用及び考案の効果】本考案はピストンのシール溝が
形成されているシールリング組付側のピストン端部の外
径をシールリングの内径よりも小さくし、即ちシールリ
ング組付側端部の外周を同心円状に小さくするものであ
り、シールリング組付後、シールリングの抜け止めのた
め脱落防止リングを装着する。According to the present invention, the outer diameter of the piston end portion on the seal ring assembly side where the seal groove of the piston is formed is smaller than the inner diameter of the seal ring, that is, the seal ring assembly side end portion. The outer circumference is concentrically reduced, and after the seal ring is assembled, a fall prevention ring is attached to prevent the seal ring from coming off.
【０００６】上記の如く本考案によれば予めピストン外
周に設けたシール溝にシールリングを組付けるものであ
るため、その組付性およびシール部精度が向上する利点
を有している。As described above, according to the present invention, since the seal ring is assembled in the seal groove previously provided on the outer circumference of the piston, there is an advantage that the assembling property and the accuracy of the seal portion are improved.
【０００７】[0007]
【実施例】第１図および第２図により本発明の実施例を
説明する。ピストン（１）のシール溝（２）形成側の円
柱形小径端部（３）をピストン外周と同心円で且つピス
トン外周の径より小さい径に形成した。この場合シール
リング（５）の内径はピストン（１）の外径より小さ
く、該小径端部（３）の外径よりも大きくなっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. The cylindrical small-diameter end portion (3) of the piston (1) on the side where the seal groove (2) is formed is formed to have a diameter that is concentric with the outer circumference of the piston and smaller than the outer diameter of the piston. In this case, the inner diameter of the seal ring (5) is smaller than the outer diameter of the piston (1) and larger than the outer diameter of the small diameter end portion (3).
【０００８】そこで先ず伸縮性のあるＯ−リング（４）
をシール溝（２）に嵌合させ、次いでシールリング
（５）を端部（３）側から装入して上記Ｏ−リング
（４）の上に嵌める。そしてシールリング（５）が端部
（３）から抜け落ちることを防止するためにシール溝
（２）の端部（３）側にバックアップリング（６）を取
付ける。Therefore, first, the elastic O-ring (4) is used.
Is fitted in the seal groove (2), then the seal ring (5) is inserted from the end (3) side and fitted on the O-ring (4). Then, in order to prevent the seal ring (5) from falling off the end portion (3), a backup ring (6) is attached to the end portion (3) side of the seal groove (2).
【図１】本考案の一例を示す説明図である。FIG. 1 is an explanatory view showing an example of the present invention.
【図２】同上の端部の径を小さくした状態を示す説明図
である。FIG. 2 is an explanatory diagram showing a state in which a diameter of an end portion of the same is reduced.
【図３】従来例を示す一部断面の側面図である。FIG. 3 is a partial cross-sectional side view showing a conventional example.
１ ピストン ２ シール溝 ３ 端部 ４ Ｏ−リング ５ シールリング ６ バックアップリング ７ ストッパー 1 Piston 2 Seal groove 3 End 4 O-ring 5 Seal ring 6 Backup ring 7 Stopper
Claims (1)
ストン外径よりも外径は大きく且つ内径は小さい非伸縮
性のシールリングを、Ｏリングを介して組付ける構造に
おいて、上記シール溝に隣接する一方の側をシールリン
グの内径より小さい小径端部とし、該シール溝にＯリン
グを介してシールリングを嵌入し、シールリングと該小
径端部との間隙に、外径はシールリングの内径より大き
く且つ内径は該小径端部の外径より小さいバックアップ
リングを装着したことを特徴とするシールリングの組付
構造。1. A structure in which a non-stretchable seal ring having an outer diameter larger than the piston outer diameter and a smaller inner diameter than the piston outer diameter is attached to the seal groove provided on the outer circumference of the piston through an O-ring, and the seal groove is provided in the seal groove . Seal ring on one adjacent side
With a small diameter end smaller than the inner diameter of the ring
Insert the seal ring through the
The outer diameter is larger than the inner diameter of the seal ring in the gap with the diameter end.
A seal ring assembling structure characterized in that a backup ring whose inner diameter is smaller than the outer diameter of the small-diameter end portion is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993016038U JPH083750Y2 (en) | 1993-03-09 | 1993-03-09 | Assembly structure of seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993016038U JPH083750Y2 (en) | 1993-03-09 | 1993-03-09 | Assembly structure of seal ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0583533U JPH0583533U (en) | 1993-11-12 |
| JPH083750Y2 true JPH083750Y2 (en) | 1996-01-31 |
Family
ID=11905418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993016038U Expired - Lifetime JPH083750Y2 (en) | 1993-03-09 | 1993-03-09 | Assembly structure of seal ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083750Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5138148U (en) * | 1974-09-17 | 1976-03-22 | ||
| JPS6114784U (en) * | 1984-07-03 | 1986-01-28 | カヤバ工業株式会社 | Compressor piston seal structure |
-
1993
- 1993-03-09 JP JP1993016038U patent/JPH083750Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0583533U (en) | 1993-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69507100D1 (en) | Sealing plug for a quick connection | |
| JPH083750Y2 (en) | Assembly structure of seal ring | |
| JPS6132830U (en) | one way clutch | |
| JPH0968233A (en) | Constant velocity joint and its assembly | |
| JPH0545895Y2 (en) | ||
| JPH063221Y2 (en) | Lip seal | |
| JPS6234019Y2 (en) | ||
| EP0346291A1 (en) | A coupling for connecting the ends of two tubular elements | |
| JPH0592584U (en) | Stem pop-out prevention structure of valve device | |
| JPS58140391U (en) | Disengagement prevention pipe fitting | |
| JP2000087939A (en) | Fastening member | |
| JPS6136731U (en) | shaft coupling | |
| JPS613965U (en) | starter pinion | |
| KR100222872B1 (en) | Seal structure of master cylinder | |
| JPS5833722U (en) | Engine exhaust pipe connection device | |
| JPS58161231U (en) | Assembly of shaft and cylindrical body for fixing shaft parts | |
| JPS5996445U (en) | damper | |
| JPS59157144U (en) | pulley damper | |
| JPS6199710A (en) | Method of fixing two member | |
| JPS5897320U (en) | Tapered roller bearing with seal | |
| JPS5870520U (en) | shaft coupling | |
| JPS585461U (en) | Fire hose coupling device | |
| JPS617743U (en) | Packing ring for gap filling | |
| JPS6018342U (en) | Cylindrical anti-vibration rubber device | |
| JPS5818183U (en) | Adjustable joint for flange joint |