JPS61124704A - Piston mechanism - Google Patents

Piston mechanism

Info

Publication number
JPS61124704A
JPS61124704A JP24197384A JP24197384A JPS61124704A JP S61124704 A JPS61124704 A JP S61124704A JP 24197384 A JP24197384 A JP 24197384A JP 24197384 A JP24197384 A JP 24197384A JP S61124704 A JPS61124704 A JP S61124704A
Authority
JP
Japan
Prior art keywords
piston
cylinder
pulleys
slider
cylinder section
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
JP24197384A
Other languages
Japanese (ja)
Inventor
Hideo Saito
秀夫 斎藤
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP24197384A priority Critical patent/JPS61124704A/en
Publication of JPS61124704A publication Critical patent/JPS61124704A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/084Characterised by the construction of the motor unit the motor being of the rodless piston type, e.g. with cable, belt or chain

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

PURPOSE:To reduce the space by disposing pulleys on both ends of a cylinder and fixing wires to both surfaces of a piston so that the wires are connected through the pulleys to a slide member. CONSTITUTION:Pulleys 8a, 8b are disposed on both ends of a cylinder 2a, and wires 9a, 9b are fixed to both surfaces of a piston 3a. The wires 9a, 9b are connected through the pulleys 8a, 8b to a slider 11. In this arrangement, the slider 11 is moved in parallel to the side of the cylinder 11 to remarkably decrease the space.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、スライドテーブル、等のスライダの駆動に用
いられるシリンダ機構に係り、特にストロークの割に設
置スペースを小さくすることができるピストン機構に関
するものである。
Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a cylinder mechanism used for driving a slider such as a slide table, and particularly to a piston mechanism that can reduce the installation space in relation to the stroke. It is something.

近来、ファクトリオートメイションの進展により製造工
場に各種の自動化装置が開発、実用化されているが、そ
の自動駆動部にエアシリンダや油圧シリンダが広く使用
されている。
In recent years, with the advancement of factory automation, various automation devices have been developed and put into practical use in manufacturing plants, and air cylinders and hydraulic cylinders are widely used in the automatic drive parts of these devices.

これらのシリンダはシリンダ部にビストンストロークを
加えた設置エリヤを必要とするので、設置スペースを小
さくする方法が望まれている。
Since these cylinders require an installation area in addition to the piston stroke in the cylinder portion, a method for reducing the installation space is desired.

〔従来の技術〕[Conventional technology]

第2図の側断面図はエアシリンダを例示しており、エア
シリンダlは、シリンダ部2.ピストン3、ピストンロ
フト4.がら構成され、ピストン3はシリンダ部2の長
手方向に摺動自在に内蔵されてい4゜ピストン3に取り
付けられたピストンロッド4はシリンダ部2の端面の摺
動孔5に嵌合し外部に出ている。
The side sectional view of FIG. 2 illustrates an air cylinder, and the air cylinder l has a cylinder portion 2. Piston 3, piston loft 4. The piston 3 is built in so as to be slidable in the longitudinal direction of the cylinder part 2, and the piston rod 4 attached to the 4° piston 3 fits into the sliding hole 5 on the end face of the cylinder part 2 and comes out to the outside. ing.

このような構成を有するので、ピストン3によって分割
されたシリンダ部2の内部の双方に吸入口6.7より圧
搾空気を交互に注入、排出するとピストン3がシリンダ
部2の内部で往復運動し、これにつれてピストンロッド
4が矢印A、B方向に移動する。
With such a configuration, when compressed air is alternately injected and discharged from the suction port 6.7 into both parts of the cylinder part 2 divided by the piston 3, the piston 3 reciprocates inside the cylinder part 2, Accordingly, the piston rod 4 moves in the directions of arrows A and B.

このピストンロフト4の動きが製造装置等の機構部の自
動化に利用される。
This movement of the piston loft 4 is used to automate mechanical parts of manufacturing equipment and the like.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記のように従来方法では、図に示すようにピストンロ
ッド4はピストン3のストロークL2だけ移動するので
、ストロークL2を有効に利用するには、エアシリンダ
1の長さり、にストロークL2を加えた長さのスペース
が必要となる。この為に装置から突出してエアシリンダ
1を取り付けざるを得ないことがあるが、エアシリンダ
lを取り付けるスペースが狭い場合が多いので、これを
解決する方法が要望されている。
As mentioned above, in the conventional method, the piston rod 4 moves by the stroke L2 of the piston 3 as shown in the figure, so in order to effectively utilize the stroke L2, the stroke L2 is added to the length of the air cylinder 1. length space is required. For this reason, it may be necessary to attach the air cylinder 1 so as to protrude from the device, but since the space in which the air cylinder 1 is attached is often narrow, a method to solve this problem is desired.

またピストン3にピストンロッド4が付いている側と付
いていない側とで圧搾空気の受圧面積が異なる(例えば
シリンダ部2の内径が20嘗の時にピストンロッド4の
直径は8a程度で、ピストンロッド4が付いている側の
受圧面積は84%になるので、エアシリンダ1の発生す
る力は、矢印A方向に押す力は強く、矢印B方向に引く
力は弱くなる。従って弱い方を基準にしてエアシリンダ
1の本発明は、シリンダ部の両端部に夫々滑車を設け、
ピストンの両面に可撓性を有する牽引部材を取り付け、
牽引部材をシリンダ部の両端面に設けられた摺動孔より
外部に出し、滑車を介してスライド部材に接続して成り
、ピストンの往復運動によりスライド部材がピストンと
反対方向に移動する構成を有するピストン機構であり、
かくすることにより上記問題点を解決することができる
Also, the pressure receiving area of the compressed air differs between the side where the piston rod 4 is attached to the piston 3 and the side where the piston rod 4 is not attached (for example, when the inner diameter of the cylinder part 2 is 20 mm, the diameter of the piston rod 4 is about 8 mm, and the piston rod 4 is The pressure receiving area on the side marked with 4 is 84%, so the force generated by air cylinder 1 is strong in pushing in the direction of arrow A, and weak in pulling in the direction of arrow B. Therefore, the weaker one is used as the reference. According to the present invention, the air cylinder 1 includes pulleys provided at both ends of the cylinder portion, and
Attach flexible traction members to both sides of the piston,
The traction member is brought out from sliding holes provided on both end faces of the cylinder part and connected to the slide member via a pulley, and the slide member moves in the opposite direction to the piston due to the reciprocating movement of the piston. It is a piston mechanism,
By doing so, the above problems can be solved.

〔作用〕[Effect]

本発明によれば、ピストンロッドを往復運動させる従来
方法に代えて、滑車をシリンダ部の両端に取り付け、ま
た可撓性を有する牽引部材2例えばワイヤーの一端をピ
ストンの両側に固定して、他端をシリンダ部の両端部の
摺動孔から外部に出して、滑車を介してスライド部材に
接続することにより、ピストンの往復運動によってスラ
イド部材をピストンの移動と反対方向に移動させる。従
ってスライド部材はシリンダ部の側面に平行に移動する
のでスペースを著しく減少させることができる。
According to the present invention, instead of the conventional method of reciprocating the piston rod, pulleys are attached to both ends of the cylinder part, and a flexible traction member 2, for example, one end of a wire is fixed to both sides of the piston. The ends are brought out from sliding holes at both ends of the cylinder part and connected to the slide member via a pulley, so that the reciprocating movement of the piston causes the slide member to move in the opposite direction to the movement of the piston. Therefore, since the sliding member moves parallel to the side surface of the cylinder part, the space can be significantly reduced.

゛〔実施例〕 以下、第1図の側断面図を参照して本発明の一実施例を
説明する。第2図と同一符号は同一対象物を示す。
[Embodiment] An embodiment of the present invention will be described below with reference to the side sectional view of FIG. The same symbols as in FIG. 2 indicate the same objects.

図に示すように、1aはエアシリンダ、2aはシリンダ
部、3aはピストン、8a、8bは滑車、9a、9bは
ワイヤー、10a、10bは孔、11はスライダを示す
As shown in the figure, 1a is an air cylinder, 2a is a cylinder part, 3a is a piston, 8a and 8b are pulleys, 9a and 9b are wires, 10a and 10b are holes, and 11 is a slider.

シリンダ部2aの両端部に滑車8a、8bが設けられて
いる。またシリンダ部2aの長手方向にピストン3aが
摺動自在に内蔵され、ピストン3aの両側中央部に、可
撓性を有する牽引部材9例えばステンレス鋼で形成され
たワイヤー9a、9bの一端が固定されている。ワイヤ
ー9a、9bはシリンダ部3aの両端に設けられた摺動
孔IQa、10bから外部に出て、滑車8a、8bに掛
けられて端部がスライダ11の両端に固定されている。
Pulleys 8a and 8b are provided at both ends of the cylinder portion 2a. Further, a piston 3a is slidably built in in the longitudinal direction of the cylinder portion 2a, and one end of a flexible traction member 9, for example, wires 9a and 9b made of stainless steel, is fixed to the central portion of both sides of the piston 3a. ing. The wires 9a, 9b come out from sliding holes IQa, 10b provided at both ends of the cylinder portion 3a, are hung on pulleys 8a, 8b, and have their ends fixed to both ends of the slider 11.

このような構成を有するので、注入口6,7より圧搾空
気を交互に注入、排出するとピストン3aがシリンダ部
2aの内部で往復運動する。これにつれてワイヤー9a
、9bが往復移動し、滑車8a、8bを介してスライダ
11が牽引されてピストン3aの移動方向と反対方向に
往復移動する。
With such a configuration, when compressed air is alternately injected and discharged from the injection ports 6 and 7, the piston 3a reciprocates inside the cylinder portion 2a. Along with this, wire 9a
, 9b reciprocate, and the slider 11 is pulled by the pulleys 8a, 8b and reciprocates in the opposite direction to the moving direction of the piston 3a.

例えばスライダ11に、スライドテーブル等のスライド
部を固定することにより、スライド部を往復運動させる
ことができる。
For example, by fixing a slide portion such as a slide table to the slider 11, the slide portion can be caused to reciprocate.

この場合、スライダ11とピストン3aのストロークは
勿論同じであり、エアシリンダ1aの長さL以内のスペ
ースで移動する。従ってエアシリンダ1aを装置から突
出した形で装備する必要がなく、スペースを著しく減少
させることができる。
In this case, the strokes of the slider 11 and the piston 3a are of course the same, and they move in a space within the length L of the air cylinder 1a. Therefore, it is not necessary to install the air cylinder 1a so as to protrude from the device, and the space required can be significantly reduced.

またワイヤー9a、9bの太さは従来例で説明したピス
トンロフト4に比べて著しく小さい(例えば直径1龍程
度)ので、引く側の力の減少が防止されピストン3aの
押す力と引(力が等しくなる。
In addition, since the thickness of the wires 9a and 9b is significantly smaller than the piston loft 4 described in the conventional example (for example, about 1 dragon in diameter), a reduction in the force on the pulling side is prevented, and the pushing force and pulling (force) of the piston 3a are reduced. be equal.

従ってエアシリンダ1aを小さく設定することができ、
経済的でしかもスペースも減少する。
Therefore, the air cylinder 1a can be set small,
It is economical and takes up less space.

上記例はエアシリンダの場合を説明したが、他のピスト
ン機構1例えば油圧シリンダ等にも適用することができ
る。油圧シリンダの場合にはシリンダ部の両端の摺動孔
から油洩れを防止するに充分な性能のパツキンを備える
必要がある。
Although the above example describes the case of an air cylinder, the present invention can also be applied to other piston mechanisms 1 such as hydraulic cylinders. In the case of a hydraulic cylinder, it is necessary to provide gaskets with sufficient performance to prevent oil leakage from the sliding holes at both ends of the cylinder part.

また上記例のワイヤー9a、9bは他の牽引部材でも良
く、例えば幅の狭いベルトでも同様の効果が得られる。
Further, the wires 9a and 9b in the above example may be replaced by other pulling members, for example, a narrow belt can provide the same effect.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、ピストン口・ノド
がないので、 ■ストロークが大きい割にはピストン機構の設置スペー
スを小さくすることができ、装置からの突出を防止でき
る。
As explained above, according to the present invention, since there is no piston opening or throat, (1) the installation space for the piston mechanism can be reduced despite the large stroke, and it is possible to prevent the piston mechanism from protruding from the device.

■押す力と引く力を等しくすることができ、ピストン機
構の大きさを従来方法に比較して小さく設定することが
でき経済的であり、スペースも一層減少する。
- Pushing force and pulling force can be made equal, and the size of the piston mechanism can be set smaller than in the conventional method, which is economical and further reduces space.

という効果がある。There is an effect.

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

第1図は本発明の一実施例を示す側断面図、第2図は従
来方法を示す側断面図である。 図において、 1.1aはエアシリンダ、2,2aはシリンダ部、3.
3aはピストン、   4はピストン機構ド、5.10
a、lObは摺動孔、 6.7は注入口、   8a、8bは滑車、9a、9b
はワイヤー、  11はスライダを示す。
FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a side sectional view showing a conventional method. In the figure, 1.1a is an air cylinder, 2 and 2a are cylinder parts, and 3.
3a is a piston, 4 is a piston mechanism, 5.10
a, lOb are sliding holes, 6.7 is an injection port, 8a, 8b are pulleys, 9a, 9b
indicates a wire, and 11 indicates a slider.

Claims (1)

【特許請求の範囲】[Claims] ピストンと、該ピストンを長手方向に摺動自在に内蔵し
、該ピストンにより内部が分割されるシリンダ部とを備
え、前記シリンダ部の分割された内部の双方に圧搾され
た流動体を交互に注入、排出して前記ピストンを往復運
動させるピストン機構であって、前記シリンダ部の両端
部に夫々滑車を設け、前記ピストンの両面に可撓性を有
する牽引部材を取り付け、該牽引部材を前記シリンダ部
の両端面に設けられた摺動孔より外部に出し、前記滑車
を介してスライド部材に接続して成り、前記ピストンの
往復運動により前記スライド部材が該ピストンと反対方
向に移動する構成を有することを特徴とするピストン機
構。
A cylinder comprising a piston and a cylinder section that houses the piston slidably in the longitudinal direction and whose interior is divided by the piston, and alternately injects compressed fluid into both of the divided interiors of the cylinder section. , a piston mechanism for reciprocating the piston by discharging the piston, wherein pulleys are provided at both ends of the cylinder section, flexible traction members are attached to both sides of the piston, and the traction members are attached to the cylinder section. The slider is brought out through sliding holes provided on both end faces of the slider and connected to the slide member via the pulley, and has a configuration in which the slide member moves in the opposite direction to the piston due to the reciprocating motion of the piston. A piston mechanism featuring
JP24197384A 1984-11-16 1984-11-16 Piston mechanism Pending JPS61124704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24197384A JPS61124704A (en) 1984-11-16 1984-11-16 Piston mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24197384A JPS61124704A (en) 1984-11-16 1984-11-16 Piston mechanism

Publications (1)

Publication Number Publication Date
JPS61124704A true JPS61124704A (en) 1986-06-12

Family

ID=17082339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24197384A Pending JPS61124704A (en) 1984-11-16 1984-11-16 Piston mechanism

Country Status (1)

Country Link
JP (1) JPS61124704A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805164A1 (en) * 1988-02-19 1989-08-31 Krupp Gmbh CUTTING DEVICE FOR RESIN MATS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025992A (en) * 1973-07-11 1975-03-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025992A (en) * 1973-07-11 1975-03-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805164A1 (en) * 1988-02-19 1989-08-31 Krupp Gmbh CUTTING DEVICE FOR RESIN MATS

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