JP2001032931A - Tube fitting structure - Google Patents

Tube fitting structure

Info

Publication number
JP2001032931A
JP2001032931A JP11209214A JP20921499A JP2001032931A JP 2001032931 A JP2001032931 A JP 2001032931A JP 11209214 A JP11209214 A JP 11209214A JP 20921499 A JP20921499 A JP 20921499A JP 2001032931 A JP2001032931 A JP 2001032931A
Authority
JP
Japan
Prior art keywords
main body
pressure fluid
rod
hole
tube
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
Application number
JP11209214A
Other languages
Japanese (ja)
Inventor
Kunihiro Kamishita
邦弘 神下
Katsuyuki Nishii
勝行 西井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanto Jidosha Kogyo KK
Toyota Motor East Japan Inc
Original Assignee
Kanto Jidosha Kogyo KK
Kanto Auto Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanto Jidosha Kogyo KK, Kanto Auto Works Ltd filed Critical Kanto Jidosha Kogyo KK
Priority to JP11209214A priority Critical patent/JP2001032931A/en
Publication of JP2001032931A publication Critical patent/JP2001032931A/en
Pending legal-status Critical Current

Links

Landscapes

  • Joints With Pressure Members (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PROBLEM TO BE SOLVED: To endow an actuator function on a tube fitting by fitting a shaft shaped moving body operated by a pressure fluid supplied to a tube into a hole for a pressure fluid passage penetrated into a main body of the tube fitting connected to a tube for supplying the pressure fluid, freely to reciprocate with a prescribed stroke. SOLUTION: A rod 8 as a shaft shaped moving body is fitted to a hole 3 for a pressure fluid passage penetrated into a main body 2 to be reciprocatable with a prescribed stroke. A cap 6 is screwed around a front end disposed on a side opposite to a rear end where a nut 4 of the main body 2 is screwed, a recessed groove 12 is disposed on a part faces to a front end surface of the main body 2 in the cap 6, a ring shaped collar 14 is interposed between the recessed groove 12 and the front end surface of the main body 2, an O-ring 13 adjacently arranged on the collar 14 and a hole 11 opened on the cap 6 are slidably penetrated by the rod 8, and the hole 3 for the pressure fluid passage penetrated in the main body 2 is set in an air-tightly condition. It is thus possible to form a structure in a compact size, and it is also possible to reduce the number of parts to reduce cost.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、アクチュエータ機
能を持った管継手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 pipe joint structure having an actuator function.

【0002】[0002]

【従来の技術】ローラコンベア面に出入りするストッ
パ、リンクの駆動リンケージ、位置決め機構等で小スト
ロークの駆動を行う場合は、図6で示すように小ストロ
ークSのピンシリンダ40を圧力流体供給用のチューブ
5に管継手30を介して接続し、前記ピンシリンダ40
にエア等の圧力流体を供給してピン50の押し出し動作
を行っている。
2. Description of the Related Art When a small stroke is driven by a stopper, a drive linkage for a link, a positioning mechanism, etc., which come in and out of a roller conveyor surface, a pin cylinder 40 having a small stroke S is supplied as shown in FIG. The pin cylinder 40 is connected to the tube 5 via a pipe joint 30.
And pressurizing the pin 50 by supplying a pressure fluid such as air.

【0003】[0003]

【発明が解決しようとする課題】前記従来の技術では小
ストロークのピンシリンダ40と管継手30の2部品を
必要としコスト高になっている。また、ピンシリンダ4
0による駆動部によってこれを設置するためのスペース
の確保が必要であると共に、このピンシリンダ40によ
る駆動部によって動かされるリンク等の被動機構部も設
計的に連動して形態が大きくなる等の問題点があった。
The above-mentioned prior art requires two parts, a pin cylinder 40 and a pipe joint 30 having a small stroke, and the cost is high. The pin cylinder 4
It is necessary to secure a space for installing the drive unit by the drive unit 0, and a driven mechanism such as a link moved by the drive unit by the pin cylinder 40 is designed to be interlocked to increase the size. There was a point.

【0004】本発明の目的は、管継手自体にアクチュエ
ータ機能を持った管継手構造を提供することである。
An object of the present invention is to provide a pipe joint structure having an actuator function in the pipe joint itself.

【0005】[0005]

【課題を解決するための手段】上記の目的を達成するた
め本発明は、圧力流体供給用のチューブに接続結合する
管継手であって、前記管継手の本体内に貫通している圧
力流体通路用の穴に前記チューブに供給される圧力流体
によって作動する軸状の移動体を所定のストロークで往
復動可能に嵌挿したことを特徴とするものである。
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a pipe joint connected and connected to a tube for supplying a pressure fluid, and a pressure fluid passage penetrating into a body of the pipe joint. And a shaft-shaped moving body operated by a pressure fluid supplied to the tube is fitted into the hole for reciprocation at a predetermined stroke.

【0006】[0006]

【発明の実施の形態】以下本発明の実施の形態を図面に
基づいて説明する。図1は本発明の第1実施例を示すも
ので、1は管継手であり、本体2と圧力流体供給用のチ
ューブ5に接続結合するためのナット4が本体2の後端
に螺合された構成による周知のストレートユニオンであ
る。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. Reference numeral 1 denotes a pipe joint, and a nut 4 for connecting and connecting a main body 2 and a tube 5 for supplying pressure fluid is screwed to a rear end of the main body 2. It is a well-known straight union with the above configuration.

【0007】本発明は、前記本体2内に貫通している圧
力流体通路用の穴3に軸状の移動体であるロッド8を所
定のストロークで往復動可能に嵌挿したものである。さ
らに詳しく説明すると、前記の本体2のナット4が螺合
されている後端とは反対側の前端にキャップ6が螺合さ
れている。このキャップ6には本体2の前端面と対面す
る部位に凹溝12が設けられており、この凹溝12と本
体2の前端面との間にリング状のカラー14が介在さ
れ、前記ロッド8はカラー14とカラー14と隣接して
設けたOリング13とキャップ6にあけられている穴1
1とを摺動自在に貫通し、かつ本体2内に貫通している
圧力流体通路用の穴3を気密状態にしている。前記キャ
ップ6にはベース等に固定するための取り付け穴7が必
要に応じてあけられる。
According to the present invention, a rod 8 which is a shaft-like moving body is fitted in a hole 3 for a pressure fluid passage penetrating into the main body 2 so as to be able to reciprocate at a predetermined stroke. More specifically, a cap 6 is screwed to the front end of the main body 2 opposite to the rear end where the nut 4 is screwed. The cap 6 is provided with a concave groove 12 at a position facing the front end face of the main body 2, and a ring-shaped collar 14 is interposed between the concave groove 12 and the front end face of the main body 2, Is a hole 14 formed in the cap 14 and the O-ring 13 provided adjacent to the collar 14 and the collar 14.
1 is slidably penetrated, and a hole 3 for a pressure fluid passage penetrating into the main body 2 is made airtight. A mounting hole 7 for fixing the cap 6 to a base or the like is formed as necessary.

【0008】前記ロッド8の前端にロッド8の軸径より
大きな径の頭部を有するボルト9がねじ込まれ、後端に
もロッド8の軸径より大きな径の頭部を有するボルト1
0がねじ込まれている。また、ロッド8の前端には小判
断面が形成されている。
A bolt 9 having a head larger in diameter than the shaft diameter of the rod 8 is screwed into the front end of the rod 8, and a bolt 1 having a head larger in diameter than the shaft diameter of the rod 8 also at the rear end.
0 is screwed. A small judgment surface is formed at the front end of the rod 8.

【0009】上記の構造による第1実施例の動作は、チ
ューブ5に供給されたエア等の圧力流体によりロッド8
は、その後端のボルト10の頭部が受圧面となって押さ
れてボルト10の頭部がカラー14に当接するまで前進
移動し、従来の小ストロークシリンダのロッド押し出し
力相当の機能を果たす。前記前進移動したロッド8の戻
り動作は、可能な限り単純化するためリターンスプリン
グは設定せずに被動機構部の外力を利用する。この戻り
動作によるロッド8の後退移動端はロッド8の前端のボ
ルト9の頭部がキャップに当接することによって規制さ
れる。尚、必要ならば本体2の形態が大きくなるがリタ
ーンスプリングを設定することも可能である。また、チ
ューブ5の圧力流体の供給を止める場合は、3ポートバ
ルブ等を使用してチューブ5内の圧力を排出することで
可能である。
The operation of the first embodiment having the above structure is based on the fact that the rod 8 is operated by a pressure fluid such as air supplied to the tube 5.
The head of the bolt 10 at the rear end is pushed as a pressure receiving surface and moves forward until the head of the bolt 10 comes into contact with the collar 14, thereby fulfilling a function equivalent to the rod pushing force of a conventional small stroke cylinder. The return operation of the rod 8 moved forward uses the external force of the driven mechanism without setting a return spring in order to simplify as much as possible. The retreating movement end of the rod 8 due to this return operation is regulated by the head of the bolt 9 at the front end of the rod 8 abutting on the cap. If necessary, the shape of the main body 2 becomes larger, but it is also possible to set a return spring. When the supply of the pressure fluid to the tube 5 is stopped, the pressure in the tube 5 can be discharged by using a three-port valve or the like.

【0010】図2は本発明の第2実施例を示し、第1実
施例の設計変更である。この設計変更部分は、ロッド8
の後端のボルト10に代えてピストン部15を形成し、
これにOリング16を嵌め込み、このピストン部15が
摺動する本体2内に貫通している圧力流体通路用の穴3
の内面を鏡面仕上げした構造である。この第2実施例の
動作は前記第1実施例と同様であるが、圧力流体の受圧
部がOリング16を施したピストン部15により第1実
施例のボルト10の場合よりも有効な受圧作用が得られ
ロッド8は大きな軸移動力となる。
FIG. 2 shows a second embodiment of the present invention, which is a design change of the first embodiment. This design change part is the rod 8
A piston part 15 is formed in place of the bolt 10 at the rear end,
An O-ring 16 is fitted into this, and a hole 3 for a pressure fluid passage penetrating into the body 2 in which the piston portion 15 slides.
Has a mirror-finished inner surface. The operation of the second embodiment is the same as that of the first embodiment, but the pressure receiving portion of the pressurized fluid is more effectively received by the piston portion 15 provided with the O-ring 16 than the bolt 10 of the first embodiment. And the rod 8 has a large axial moving force.

【0011】図3は本発明の第3実施例を示し、その構
造の本質は前記第1実施例と同様である。この第3実施
例は前記第1実施例や第2実施例のキャップ6をトラニ
オン6aに代え、ロッド8の前端にはクレビス17を設
け、ロッド8の後端にロッド8の軸径より大きな径のカ
ラー18をスナップリング19で取り付けた構造であ
る。この第3実施例においても動作は前記第1実施例と
同様であるが、この場合はロッド8の前進移動端はロッ
ド8の後端のカラー18がトラニオン6aと本体2の前
端面との間に位置しているカラー14に当接することに
よって規制し、ロッド8の後退移動端はクレビス17が
トラニオン6aに当接することによって規制される。
FIG. 3 shows a third embodiment of the present invention. The structure of the third embodiment is the same as that of the first embodiment. In the third embodiment, the cap 6 of the first or second embodiment is replaced with a trunnion 6a, a clevis 17 is provided at the front end of the rod 8, and a diameter larger than the rod diameter of the rod 8 is provided at the rear end of the rod 8. Are attached with a snap ring 19. The operation of the third embodiment is the same as that of the first embodiment, but in this case, the forward moving end of the rod 8 is such that the collar 18 at the rear end of the rod 8 is between the trunnion 6a and the front end surface of the main body 2. Is restricted by abutting on the collar 14 located at the position, and the retreating end of the rod 8 is regulated by the clevis 17 abutting on the trunnion 6a.

【0012】図4は本発明の第4実施例を示し、その構
造の本質は前記第1実施例と同様である。この第4実施
例はロッド8の前端にはなにも取り付けず、ロッド8の
後端部に第3実施例のようにロッド8の軸径より大きな
径のカラー18をスナップリング19で取り付け、この
カラー18の部位よりも後方へ延長部8aを設け、これ
らを内設した本体2をエルボユニオン20に螺合した構
造である。この第4実施例においても動作は前記第1実
施例と同様であるが、ロッド8の前進移動端はロッド8
の後端のカラー18がキャップ6と本体2の前端面との
間に位置しているカラー14に当接することによって規
制し、ロッド8の後退移動端は延長部8aがエルボユニ
オン20に当接することによって規制される。
FIG. 4 shows a fourth embodiment of the present invention. The structure of the fourth embodiment is the same as that of the first embodiment. In the fourth embodiment, nothing is attached to the front end of the rod 8, and a collar 18 having a diameter larger than the shaft diameter of the rod 8 is attached to the rear end of the rod 8 by a snap ring 19 as in the third embodiment. An extended portion 8 a is provided behind the collar 18, and the main body 2 in which these are provided is screwed into an elbow union 20. The operation of the fourth embodiment is the same as that of the first embodiment, except that the forward moving end of the rod 8 is
The rear end collar 18 abuts against the collar 14 located between the cap 6 and the front end face of the main body 2 to regulate the rearward movement end of the rod 8 so that the extension 8 a abuts the elbow union 20. Are regulated by:

【0013】図5は本発明の第4実施例の管継手構造の
ものを被動機構部に適用した例を示すものであり、一定
の間隔で位置決め用の凹溝22が形成されている位置決
め部材21の前記凹溝22に揺動中心軸24をピンボッ
トとして係合する位置決め爪23を流体圧力の供給によ
るロッド8の押し出し動作によって引っ張りばね25の
引張力に抗して押しさげて凹溝22に係合させ、前記流
体圧力の排出によるロッド8の押し出し力を無くすこと
により引っ張りばね25の引張力で位置決め爪23を凹
溝22より外すと共に、位置決め爪23の外れ方向の揺
動によってロッド8を戻し作動する。
FIG. 5 shows an example in which a pipe joint structure according to a fourth embodiment of the present invention is applied to a driven mechanism, and a positioning member in which positioning grooves 22 are formed at regular intervals. The pushing of the rod 8 by the supply of fluid pressure pushes the positioning claw 23, which engages the swinging central shaft 24 into the groove 22 of the groove 21 against the tensile force of the tension spring 25, and pushes the positioning claw 23 into the groove 22. The positioning claw 23 is disengaged from the groove 22 by the pulling force of the tension spring 25 by eliminating the pushing force of the rod 8 due to the discharge of the fluid pressure. Operate back.

【0014】本発明は上記の位置決め機構への使用の他
に、ローラコンベアのストッパ、ワーククランプ、チャ
ックの開閉、リンクの駆動リンケージ等広く適用するこ
とが可能であり、小スペースで配設することができる。
また、圧力流体はエア圧に限定されるものではなく、シ
ールを考慮することにより液圧でも可能である。
The present invention can be widely applied to a roller conveyor stopper, a work clamp, opening and closing of a chuck, a link drive linkage, etc. in addition to the use for the above-described positioning mechanism. Can be.
Further, the pressure fluid is not limited to the air pressure, but may be a hydraulic pressure in consideration of a seal.

【0015】[0015]

【発明の効果】以上のように本発明によると、管継手自
体に圧力流体によって作動する軸状の移動体を所定のス
トロークで往復動可能に設けた構成であるから、小スト
ロークの押し出し駆動部として、管継手とは別個のシリ
ンダを用いる従来よりもコンパクトになり、部品点数が
削減されコストを低減することができる。また、押し出
し駆動部がコンパクトになることにより、関連する被動
機構部もコンパクトに構成し易くなる利点を有してい
る。
As described above, according to the present invention, since the pipe-shaped joint itself is provided with the shaft-shaped moving body which is operated by the pressurized fluid so as to be able to reciprocate at a predetermined stroke, the push-out drive unit with a small stroke is provided. As a result, it becomes more compact than before using a cylinder separate from the pipe joint, the number of parts can be reduced, and the cost can be reduced. In addition, since the extrusion drive unit is made compact, there is an advantage that the related driven mechanism unit can be easily made compact.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の第1実施例の断面図FIG. 1 is a cross-sectional view of a first embodiment of the present invention.

【図2】本発明の第2実施例の断面図FIG. 2 is a sectional view of a second embodiment of the present invention.

【図3】本発明の第3実施例の断面図FIG. 3 is a sectional view of a third embodiment of the present invention.

【図4】本発明の第4実施例の断面図FIG. 4 is a sectional view of a fourth embodiment of the present invention.

【図5】本発明の使用の1例を示す図FIG. 5 shows an example of the use of the present invention.

【図6】従来構造を示す側面図FIG. 6 is a side view showing a conventional structure.

【符号の説明】[Explanation of symbols]

1 管継手 2 本体 3 圧力流体通路用の穴 4 ナット 5 チューブ 6 キャップ 6a トラニオン 7 取り付け穴 8 ロッド 8a 延長部 9 ボルト 10 ボルト 11 穴 12 凹溝 13 Oリング 14 カラー 15 ピストン部 16 Oリング 17 クレビス 18 カラー 19 スナップリング 20 エルボユニオン DESCRIPTION OF SYMBOLS 1 Fitting 2 Main body 3 Hole for pressure fluid passage 4 Nut 5 Tube 6 Cap 6a Trunnion 7 Mounting hole 8 Rod 8a Extension 9 Bolt 10 Bolt 11 Hole 12 Concave groove 13 O ring 14 Collar 15 Piston part 16 O ring 17 Clevis 18 Collar 19 Snap ring 20 Elbow union

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 圧力流体供給用のチューブに接続結合す
る管継手であって、前記管継手の本体内に貫通している
圧力流体通路用の穴に前記チューブに供給される圧力流
体によって作動する軸状の移動体を所定のストロークで
往復動可能に嵌挿したことを特徴とする管継手構造。
1. A pipe joint connected and connected to a tube for supplying a pressure fluid, wherein the pipe joint is operated by a pressure fluid supplied to the tube in a hole for a pressure fluid passage penetrating into a body of the pipe joint. A pipe joint structure in which a shaft-shaped moving body is inserted so as to be able to reciprocate at a predetermined stroke.
JP11209214A 1999-07-23 1999-07-23 Tube fitting structure Pending JP2001032931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11209214A JP2001032931A (en) 1999-07-23 1999-07-23 Tube fitting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11209214A JP2001032931A (en) 1999-07-23 1999-07-23 Tube fitting structure

Publications (1)

Publication Number Publication Date
JP2001032931A true JP2001032931A (en) 2001-02-06

Family

ID=16569249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11209214A Pending JP2001032931A (en) 1999-07-23 1999-07-23 Tube fitting structure

Country Status (1)

Country Link
JP (1) JP2001032931A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7591246B2 (en) 2006-01-17 2009-09-22 Gm Global Technology Operations, Inc. Isolated fuel delivery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7591246B2 (en) 2006-01-17 2009-09-22 Gm Global Technology Operations, Inc. Isolated fuel delivery system

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