JPH0735126Y2 - Cover mounting device for fluid pressure cylinders, etc. - Google Patents
Cover mounting device for fluid pressure cylinders, etc.Info
- Publication number
- JPH0735126Y2 JPH0735126Y2 JP1988126715U JP12671588U JPH0735126Y2 JP H0735126 Y2 JPH0735126 Y2 JP H0735126Y2 JP 1988126715 U JP1988126715 U JP 1988126715U JP 12671588 U JP12671588 U JP 12671588U JP H0735126 Y2 JPH0735126 Y2 JP H0735126Y2
- Authority
- JP
- Japan
- Prior art keywords
- stop ring
- cover
- fixing groove
- fluid pressure
- mounting device
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、流体圧シリンダ等におけるカバーの取付装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a cover mounting device for a fluid pressure cylinder or the like.
［従来の技術］ 流体圧シリンダにおけるシリンダチューブとヘッドカバ
ー及びロッドカバーとは、通常相互に設けたねじによっ
て螺着している。[Prior Art] In a fluid pressure cylinder, a cylinder tube and a head cover and a rod cover are usually screwed together by screws provided to each other.
しかしながら、ねじによる取付は、取付操作が面倒で、
かつ取付部の加工に手数を要するという問題がある。However, the mounting operation is troublesome when mounting with screws,
In addition, there is a problem that it takes time to process the mounting portion.
この問題を解決するために、シリンダチューブとカバー
を、２個のスナップリングによって取付けることが提案
されている（一例として、特公昭45-009966号公報参
照）。In order to solve this problem, it has been proposed to attach the cylinder tube and the cover with two snap rings (for example, see Japanese Patent Publication No. 45-009966).
上記既提案のスナップリングによるカバーの取付けは、
ねじに比べてカバーの取付操作が簡単であるが、カバー
に作用する内圧をこれらの軸線とほぼ直交する受圧面が
受けるために、カバーの取付力が小さいという問題があ
る。To attach the cover using the previously proposed snap ring,
Although the cover can be attached more easily than screws, the pressure applied to the cover is received by the pressure-receiving surfaces that are substantially orthogonal to these axes, so the cover has a small attachment force.
［考案が解決しようとする課題］ 本考案が解決しようとする課題は、流体圧シリンダ等の
筒部に対するカバーの取付操作が簡単で、しかも強固に
取付けることができるカバー等の取付装置を提供するこ
とにある。[Problem to be Solved by the Invention] The problem to be solved by the present invention is to provide a mounting device for a cover or the like that can easily and firmly mount a cover to a tubular portion such as a fluid pressure cylinder. Especially.
［課題を解決するための手段］ 上記課題を解決するため、本考案の流体圧シリンダ等に
おけるカバーの取付装置は、筒部と、該筒部に取付けら
れるカバーとを備えた流体圧シリンダ等におけるカバー
取付装置において、上記筒部の内周面に、端面側を円弧
面とした第１固定溝を設けて、該第１固定溝に、上記円
弧面とほぼ同径の円形断面を有する第１ストップリング
を装着し、上記カバーの外周面に、上記第１ストップリ
ングとほぼ同径で端面側を向く円弧面を有する当接面
と、該当接面より端面側に形成した第２固定溝とを設け
て、第２固定溝に、第１ストップリングより小径で第１
ストップリングに当接する断面円形の第２ストップリン
グを嵌着し、上記カバーに作用する内圧は、当接面が第
１ストップリングを拡径方向に押圧して第１固定溝に圧
接させて支承し、カバーに作用する外圧は、第２ストッ
プリングが第１ストップリングを拡径方向に押圧して第
１固定溝に圧接させて支承することを特徴としている。[Means for Solving the Problems] In order to solve the above problems, a cover mounting device for a fluid pressure cylinder or the like of the present invention is a fluid pressure cylinder or the like including a tubular portion and a cover attached to the tubular portion. In the cover attaching device, a first fixing groove having an arc surface on the end face side is provided on the inner peripheral surface of the cylindrical portion, and the first fixing groove has a circular cross section having substantially the same diameter as the arc surface. A stop ring is attached, and an outer peripheral surface of the cover has an abutment surface having an arcuate surface having substantially the same diameter as the first stop ring and facing the end surface side, and a second fixing groove formed on the end surface side of the contact surface. The first stop ring with a smaller diameter than the first stop ring.
A second stop ring, which has a circular cross section, is fitted into contact with the stop ring, and the internal pressure acting on the cover is supported by the contact surface pressing the first stop ring in the radial direction to press it into the first fixing groove. The external pressure acting on the cover is characterized in that the second stop ring presses the first stop ring in the radial direction and presses the first stop groove to bear the external pressure.
［作用］ カバーに設けた当接面と、該カバーの第２固定溝に嵌着
した第２ストップリングとが、筒部の第１固定溝に装着
した第１ストップリングの両側に当接することによっ
て、カバーが筒部に取付けられる。[Operation] The contact surface provided on the cover and the second stop ring fitted in the second fixing groove of the cover come into contact with both sides of the first stop ring mounted in the first fixing groove of the tubular portion. The cover is attached to the tubular portion.
したがって、ねじによる取付けに比べてカバーの取付操
作が簡単で、かつ取付部の加工も容易である。Therefore, the cover can be mounted more easily than the screw mounting, and the mounting portion can be easily machined.
カバーに内圧が作用すると、カバーに設けた当接面が第
１ストップリングを拡径方向に押圧して筒体に設けた第
１固定溝に圧接させるので、カバーの取付力が大きくて
離脱することがない。When the internal pressure acts on the cover, the abutment surface provided on the cover presses the first stop ring in the radial direction and presses it against the first fixing groove provided on the cylindrical body. Never.
また、カバーに外圧が作用すると、カバーの第２固定溝
に装着した第２ストップリングが、これよりも大径の第
１ストップリングを拡径方向に押圧して第１固定溝に圧
接させるので、外圧によってカバーが移動することはな
い。この場合、外圧の作用力は内圧に比べて小さいの
で、第２ストップリングの径が第１ストップリングより
小径でも破損することはない。Further, when an external pressure acts on the cover, the second stop ring mounted in the second fixing groove of the cover presses the first stop ring having a larger diameter than this in the radial expansion direction to press the first fixing groove. , The cover will not move due to external pressure. In this case, the acting force of the external pressure is smaller than that of the internal pressure, so that even if the diameter of the second stop ring is smaller than that of the first stop ring, it is not damaged.
［実施例］ 図面は本考案の実施例を示し、この実施例における流体
圧シリンダは、シリンダを構成するシリンダチューブ１
とヘッドカバー２及びロッドカバー３、並びにピストン
アセンブリを構成するピストン４とピストンロッド５を
備え、カバー２と３は、後記する第１ストップリング６
と第２ストップリング７によって、シリンダチューブ１
に取付けられている。[Embodiment] The drawings show an embodiment of the present invention, in which a fluid pressure cylinder is a cylinder tube 1 which constitutes a cylinder.
And a head cover 2 and a rod cover 3, and a piston 4 and a piston rod 5 that form a piston assembly. The covers 2 and 3 include a first stop ring 6 described later.
With the second stop ring 7, the cylinder tube 1
Installed on.
上記シリンダチューブ１は、両端近くの内周面に、端面
側を上記第１ストップリング６とほぼ同径の円弧面と
し、中心側を軸心に向く傾斜面とした第１固定溝9,9を
備え、該第１固定溝9,9に第１ストップリング6,6が装着
される。一方、カバー２と３は、外端面近くの外周面
に、第１ストップリング６とほぼ同径の円弧面よりなる
当接面10を備え、該当接面10外側の縮径部11に、上記第
２ストップリング７を装着させる第２固定溝12,12が形
設されている。The cylinder tube 1 has, on the inner peripheral surface near both ends, a first fixing groove 9, 9 whose end surface side is an arc surface having substantially the same diameter as that of the first stop ring 6 and whose center side is an inclined surface facing the axis. And the first stop rings 6, 6 are mounted in the first fixing grooves 9, 9. On the other hand, the covers 2 and 3 are provided with an abutting surface 10 on the outer peripheral surface near the outer end surface, the abutting surface 10 being an arcuate surface having substantially the same diameter as that of the first stop ring 6. Second fixing grooves 12, 12 for mounting the second stop ring 7 are formed.
欠円状の上記ストップリング６と７は、ばね鋼、ステン
レス鋼等の素材で形成され、第２ストップリング７の線
径は、第１ストップリング６に比べて著しく小径にされ
ている。The circular stop rings 6 and 7 are made of a material such as spring steel or stainless steel, and the wire diameter of the second stop ring 7 is significantly smaller than that of the first stop ring 6.
そして、上記固定溝９と12及び当接面10は、当接面10が
第１固定溝９に装着した第１ストップリング６に当接し
た状態において、第２固定溝12に装着した第２ストップ
リング７が、第１ストップリング６の内側円弧面に極め
て接近するように関係づけられている（第２図参照）。The fixing grooves 9 and 12 and the contact surface 10 are attached to the second fixing groove 12 when the contact surface 10 is in contact with the first stop ring 6 attached to the first fixing groove 9. The stop ring 7 is associated so as to come very close to the inner arc surface of the first stop ring 6 (see FIG. 2).
上記実施例は、シリンダチューブ１内にピストンアセン
ブリを挿入し、カバー２と３をその外端面が第１固定溝
９より内方に位置するように挿入して、第１固定溝9,9
に第１ストップリング6,6を装着させる。次いで、カバ
ー２と３を、当接面10,10が第１ストップリング6,6に当
接する位置まで引出し、第２固定溝12,12に第２ストッ
プリング7,7を装着することにより、カバー２と３がシ
リンダチューブ１に取付けられる。In the above embodiment, the piston assembly is inserted into the cylinder tube 1 and the covers 2 and 3 are inserted so that the outer end surfaces of the covers 2 and 3 are located inward of the first fixing groove 9, so that the first fixing grooves 9 and 9 are formed.
Attach the first stop ring 6,6 to. Then, the covers 2 and 3 are pulled out to a position where the contact surfaces 10 and 10 contact the first stop rings 6 and 6, and the second stop rings 7 and 7 are attached to the second fixing grooves 12 and 12, Covers 2 and 3 are attached to the cylinder tube 1.
上記ストップリング６と７によるカバー２と３の取付け
は、ストップリング６と７の固定溝９と12への装着と、
カバー２と３の軸線方向の移動とによって行えるので、
カバー２と３をシリンダチューブ１に螺着させる場合に
比べて操作が簡単であり、またねじを必要としないの
で、取付部の加工も容易である。さらに、ねじによる取
付に比べて取付部分の軸方向長さを短くできるので、流
体圧シリンダを小形にすることができる。The attachment of the covers 2 and 3 by the stop rings 6 and 7 is performed by attaching the stop rings 6 and 7 to the fixing grooves 9 and 12,
Since it can be done by moving the covers 2 and 3 in the axial direction,
Compared with the case where the covers 2 and 3 are screwed to the cylinder tube 1, the operation is simpler, and no screws are required, so that the mounting portion can be easily processed. Furthermore, since the axial length of the mounting portion can be shortened as compared with mounting by screws, the fluid pressure cylinder can be made compact.
上記カバーの取付装置において、カバー２と３に作用す
る内圧、即ちこれらのカバーをシリンダチューブ１から
押出す方向の力は、当接面10が第１固定溝９に装着した
第１ストップリング６を拡径方向に押圧して、第１固定
溝9,9に圧接することにより、また、カバー２と３に作
用する外圧、即ちこれらのカバーをシリンダチューブ１
に押込む方向の力は、小径の第２ストップリング７が第
１ストップリング６の内側円弧面を拡径方向に押圧し
て、第１固定溝9,9に圧接することにより、それぞれ支
承される。In the cover attachment device, the internal pressure acting on the covers 2 and 3, that is, the force in the direction of pushing these covers out of the cylinder tube 1, is determined by the first stop ring 6 with the contact surface 10 mounted in the first fixing groove 9. Is pressed in the radial direction and pressed against the first fixing grooves 9 and 9, and the external pressure acting on the covers 2 and 3, that is, these covers is applied to the cylinder tube 1
The force in the direction of pushing in is supported by the second stop ring 7 having a small diameter pressing the inner circular arc surface of the first stop ring 6 in the radial direction and press-contacting the first fixing grooves 9, 9. It
したがって、ストップリング６と７によって、カバー２
と３をシリンダチューブ１に強固に取付けることができ
る。Therefore, by means of the stop rings 6 and 7, the cover 2
And 3 can be firmly attached to the cylinder tube 1.
なお、本考案は、シリンダチューブ１にヘッドカバー２
とロッドカバー３の双方を取付ける場合に限定されるも
のではなく、シリンダチューブ１にカバーの一方を取付
ける場合を含み、さらには、バルブボディに形設した孔
にカバーを取付ける場合も含むものである。In the present invention, the head cover 2 is attached to the cylinder tube 1.
The present invention is not limited to the case where both the rod cover 3 and the rod cover 3 are attached, and includes the case where one of the covers is attached to the cylinder tube 1, and the case where the cover is attached to the hole formed in the valve body.
［考案の効果］ 本考案における流体圧シリンダ等のカバー取付装置は、
筒部側の第１ストップリングと、カバー側の当接面及び
第２ストップリングとによって、筒部にカバーを取付け
ることができるので、カバーの取付操作が簡単で、かつ
取付部の加工も容易である。[Advantage of the Invention] The cover mounting device for the fluid pressure cylinder or the like in the present invention is
Since the cover can be attached to the tubular portion by the first stop ring on the tubular portion side, the contact surface on the cover side and the second stop ring, the attaching operation of the cover is easy and the attaching portion can be easily processed. Is.
また、カバーに作用する内外圧によって、第１ストップ
リングを拡径方向に押圧して、筒体に設けた第１固定溝
に圧接させるので、内圧によってカバーが筒体から離脱
したり、或いは外圧によってカバーが筒体内に移動した
りすることを確実に防止することができる。In addition, since the first stop ring is pressed in the radial direction by the inner and outer pressures acting on the cover and is brought into pressure contact with the first fixing groove provided in the cylinder, the cover is detached from the cylinder by the inner pressure, or the outer pressure Thus, it is possible to reliably prevent the cover from moving into the cylinder.
第１図は本考案の実施例の縦断正面図、第２図は取付部
の拡大断面図である。 １……シリンダチューブ、2,3……カバー、６……第１
ストップリング、７……第２ストップリング、９……第
１固定溝、10……当接面。FIG. 1 is a vertical sectional front view of an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a mounting portion. 1 …… Cylinder tube, 2,3 …… Cover, 6 …… First
Stop ring, 7 ... second stop ring, 9 ... first fixing groove, 10 ... contact surface.
Claims (1)
備えた流体圧シリンダ等におけるカバー取付装置におい
て、 上記筒部の内周面に、端面側を円弧面とした第１固定溝
を設けて、該第１固定溝に、上記円弧面とほぼ同径の円
形断面を有する第１ストップリングを装着し、 上記カバーの外周面に、上記第１ストップリングとほぼ
同径で端面側を向く円弧面を有する当接面と、該当接面
より端面側に形成した第２固定溝とを設けて、該第２固
定溝に、第１ストップリングより小径で第１ストップリ
ングに当接する断面円形の第２ストップリングを嵌着
し、 上記カバーに作用する内圧は、当接面が第１ストップリ
ングを拡径方向に押圧して第１固定溝に圧接させて支承
し、カバーに作用する外圧は、第２ストップリングが第
１ストップリングを拡径方向に押圧して第１固定溝に圧
接させて支承する、 ことを特徴とする流体圧シリンダ等におけるカバー取付
装置。1. A cover mounting device for a fluid pressure cylinder or the like comprising a tubular portion and a cover attached to the tubular portion, wherein a first fixing groove having an arcuate end surface on the inner peripheral surface of the tubular portion. And a first stop ring having a circular cross section with a diameter substantially the same as that of the circular arc surface is mounted in the first fixing groove, and an end surface side having a diameter substantially the same as the first stop ring is provided on the outer peripheral surface of the cover. And a second fixing groove formed on the end face side of the corresponding contact surface, the second fixing groove having a diameter smaller than that of the first stop ring and making contact with the first stop ring. The second stop ring having a circular cross section is fitted, and the internal pressure acting on the cover is supported by the abutment surface pressing the first stop ring in the radial direction and press-contacting the first fixing groove. The external pressure to be applied is that the second stop ring is the first stop ring. Is pressed against the enlarged diameter direction is pressed against the first fixing groove for supporting the cover mounting device in a fluid pressure cylinder or the like, characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988126715U JPH0735126Y2 (en) | 1988-09-28 | 1988-09-28 | Cover mounting device for fluid pressure cylinders, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988126715U JPH0735126Y2 (en) | 1988-09-28 | 1988-09-28 | Cover mounting device for fluid pressure cylinders, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0247409U JPH0247409U (en) | 1990-03-30 |
| JPH0735126Y2 true JPH0735126Y2 (en) | 1995-08-09 |
Family
ID=31378479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988126715U Expired - Lifetime JPH0735126Y2 (en) | 1988-09-28 | 1988-09-28 | Cover mounting device for fluid pressure cylinders, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735126Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190067511A (en) * | 2017-12-07 | 2019-06-17 | 디와이파워 주식회사 | Hydraulic cylinder apparatus with fix structure by stop ring between rod cover and tube |
-
1988
- 1988-09-28 JP JP1988126715U patent/JPH0735126Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190067511A (en) * | 2017-12-07 | 2019-06-17 | 디와이파워 주식회사 | Hydraulic cylinder apparatus with fix structure by stop ring between rod cover and tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0247409U (en) | 1990-03-30 |
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