JPS62204005A - Pneumatic cylinder fitted with intermediate stop mechanism - Google Patents

Pneumatic cylinder fitted with intermediate stop mechanism

Info

Publication number
JPS62204005A
JPS62204005A JP4567086A JP4567086A JPS62204005A JP S62204005 A JPS62204005 A JP S62204005A JP 4567086 A JP4567086 A JP 4567086A JP 4567086 A JP4567086 A JP 4567086A JP S62204005 A JPS62204005 A JP S62204005A
Authority
JP
Japan
Prior art keywords
brake
steel ball
piston
piston rod
holding member
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.)
Granted
Application number
JP4567086A
Other languages
Japanese (ja)
Other versions
JPH0610483B2 (en
Inventor
Takashi Kimura
隆 木村
Yoshitsugu Hattori
義次 服部
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP61045670A priority Critical patent/JPH0610483B2/en
Publication of JPS62204005A publication Critical patent/JPS62204005A/en
Publication of JPH0610483B2 publication Critical patent/JPH0610483B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To prevent a flaking phenomenon by providing a steel ball holding member provided with steel balls in plural rows, between the skirt part of a brake piston and a split bush and providing plural inclinated rings on the circumference of the steel ball holding member. CONSTITUTION:A brake metal 23 and a split bush 24 are provided in a duplex tube form, a brake piston 25 is provided on the circumference of a split bush 4, a steel ball holding member 30 which has steel balls 32 in plural rows is provided between the skirt part 27 of the brake piston 25 and the split bush 24, and a inclined ring 35 and an elastic body 34 are provided on the circumference of the steel ball holding member 30. A pressure contact area is large and so brake efficiency increases, and the working force per steel ball 32 lessens therefrom, because each steel ball 32 is rolling due to presence of the inclined ring 35 to move in the central direction of a piston rod 9 with the help of the movement of the brake piston 25. Accordingly, a flaking phenomenon can be prevented.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、空気圧シリンダのビス1−ンロッドの荊動
中あるいは作動空気圧がなくなった時、ピストンロッド
を停止する中間停止機構付空気nシリンダに関する。
Detailed Description of the Invention (Industrial Application Field) This invention relates to an air cylinder with an intermediate stop mechanism that stops the piston rod when the piston rod of the pneumatic cylinder is moving or when operating air pressure is lost. .

(従来の技術) 従来、この種中間停止機構としては特公昭57−437
62号公報がある。この公報に171示されたものは、
流体圧シリンダー01に設6ノだロックシリンダ102
にばね103を介しC弾着したロックピストン104に
取付けた模能を右りる緊締体105を介して複数個のボ
ール106を押圧するとともに、さらにこのボール10
6によりピストンロッド107を1g動可能に挿通した
ブレーキシュー108を圧迫してピストンロッド107
をロックする構成のものである。
(Prior art) Conventionally, as this type of intermediate stop mechanism, the Japanese Patent Publication No. 57-437
There is a publication No. 62. 171 things shown in this bulletin are:
A six-hole lock cylinder 102 is installed in the fluid pressure cylinder 01.
A plurality of balls 106 are pressed through a tensioning body 105 that is attached to a lock piston 104 that is C-loaded through a spring 103, and the balls 10
6 presses the brake shoe 108 inserted through which the piston rod 107 can move by 1g, and the piston rod 107
It is configured to lock.

(解決しようとする問題点) しかしながら、上記従来の構成のもので覧よ緊締体10
5の傾斜面105aの傾斜角、径等加・1上の誤差があ
るため、ブレーキシュー108に対し均等に圧力が作用
しないので、ブレーキシュー108に局部的に作用する
のでブレーキシュー 108の耐久性に欠りる問題点が
あり、また、ボール106は早死のものであるから、ピ
ストンロッド101をロックするためにはボール106
の1個当りの作用力を人ぎくしなければならないため、
ボール106と傾斜面105a及びボール106とブレ
ー4シユー108の外周部との間にフレー4:ング現象
を生ずる等の問題点があった。
(Problem to be solved) However, as shown in the above conventional structure, the tightening body 10
Due to the inclination angle of the inclined surface 105a of No. 5, the diameter, etc., and the error above 1, the pressure does not act uniformly on the brake shoe 108, so the pressure acts locally on the brake shoe 108, which reduces the durability of the brake shoe 108. In addition, since the ball 106 is prematurely dead, it is necessary to use the ball 106 to lock the piston rod 101.
Since the acting force per piece must be reduced,
There were problems such as a flaring phenomenon occurring between the ball 106 and the inclined surface 105a and between the ball 106 and the outer circumference of the brake shoe 108.

(問題点を解決するための手段) 本発明は、F記従来の問題点を解決7ベくなされたbの
で、ブレーキシューの外周を均等に加圧作用することが
又・ぎるとともに、フレー、1−ング現象を解消するこ
とのできる中間停止機構付空気圧シリンダを提供するこ
とを目的とし、その要旨は空気圧シリンダ部に連設して
ピストンロッドを停止する中間停止機構部を設けてなる
中間停止機構付空気圧シリンダであって、前記中間停止
り機構部の中心部には前記ピストンロッドを摺動可能に
仲通し、かつビス1〜ンロツドを把持可能にそれぞれス
リットを有するブレーキメタルと割ブツシュとを二重管
状に設【ノ、この割ブツシュの外周に【、1ピストン室
をばね室とブレーキ開放室とに区画するビス(−ン体ど
スカート部とから仕るブレーキピストンを前記ばね室側
にばねを弾装してブレーキfil放室側に付勢するとと
もに、前記ブレーキピストンのスカート部と割ブツシュ
の間には、同訓ブツシュの外周に複数個の鋼球を環状に
かつ転動可能に配設した鋼球列を複数列設G)だ鋼球保
持部材と、該鋼球保持部材の外周に前記環状の鋼球列に
対応して前記ブレーキ開放室側に拡開状に傾斜する内周
面を有する複数の傾斜リングと、さらに前記各鋼球を前
記ピストンロッドの中心に向って均等加圧可能とする弾
性体とからなるプレー1作動部を介装づる構成とした中
間停止機構付空気圧シリンダに存する。
(Means for Solving the Problems) The present invention has solved the problems of the conventional art (F), so that it is possible to apply pressure evenly to the outer periphery of the brake shoes, and to prevent The purpose is to provide a pneumatic cylinder with an intermediate stop mechanism that can eliminate the 1-ring phenomenon. In the pneumatic cylinder with a mechanism, a brake metal and a split bushing are provided in the center of the intermediate stop mechanism portion, and the piston rod is slidably inserted therebetween, and the brake metal and the split bushing each have a slit so as to be able to grip the screws 1 to 1. On the outer periphery of this split bushing, there is a screw that divides one piston chamber into a spring chamber and a brake release chamber. A spring is loaded to bias the brake filter toward the release side, and between the skirt portion of the brake piston and the split bushing, a plurality of steel balls are arranged in an annular manner around the outer circumference of the split bushing and are rotatable. G) A steel ball holding member having a plurality of rows of steel balls disposed therein; and an inner surface on the outer periphery of the steel ball holding member that is inclined to expand toward the brake release chamber side in correspondence with the annular steel ball rows. Equipped with an intermediate stop mechanism configured to include a play 1 actuating section consisting of a plurality of inclined rings having a circumferential surface and an elastic body that can uniformly press each steel ball toward the center of the piston rod. Exists in pneumatic cylinders.

(実施例) 次に、本発明の一実施例を図面に従って説明すると、図
中1は中間停止機構付空気圧シリンダであって、空気圧
シリンダ部2と中間停止機構部13とにり構成されてい
る。
(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, 1 is a pneumatic cylinder with an intermediate stop mechanism, which is composed of a pneumatic cylinder part 2 and an intermediate stop mechanism part 13. .

この空気圧シリンダ部2はそのシリンダチューブ3の両
端にボート5.7を有するヘッドカバー4と中間カバー
6とが嵌着され、シリンダチューブ3内に(まピストン
8が摺動可能に内嵌されるとともに、同ピストン8には
ピストンロッド9が取何番)られて、このピストン1コ
ツト9は中間カバー6に置設した挿通孔10に摺動可能
に挿通されて中間停止機構部13側へ延出されている。
This pneumatic cylinder part 2 has a head cover 4 and an intermediate cover 6 fitted at both ends of the cylinder tube 3, and a piston 8 is slidably fitted into the cylinder tube 3. A piston rod 9 is attached to the piston 8, and the piston rod 9 is slidably inserted into an insertion hole 10 provided in the intermediate cover 6 and extends toward the intermediate stop mechanism section 13. has been done.

また、中間カバー6の停tta構部13側の面の挿通孔
10の外周には侵述のブレーキメタル23の受凹部11
が形成され、また、同面の外周部には停止機構部13の
シリンダチューブ22を嵌着する受凹部12が形成され
ている。
Further, on the outer periphery of the insertion hole 10 on the surface of the intermediate cover 6 on the stop structure 13 side, a receiving recess 11 for the brake metal 23 mentioned above is provided.
Further, a receiving recess 12 into which the cylinder tube 22 of the stop mechanism section 13 is fitted is formed on the outer periphery of the same surface.

13は上記した中間停止機構部であって、この停止機構
部13は中間カバー6と対設してロッドカバー14が設
けられ、このロッドカバー14の中心部の両側にはボス
部15.16が突出形成されるとともに、同中心にはピ
ストンロッド9を挿通する挿通孔17がV1段され、ま
た、ボス部16の挿通孔17の外周には中間カバー6の
受凹部11と対応してブレーキメタル23の受凹部18
が形成されている。また、同ロッドカバー1/lのボス
部16側の面の外周にはリング状の凸部19が形成され
て、同凸部19の外周側には中間カバー6の外周に形成
したシリンダチューブ22の受凹部12と対応して受凹
部20が形成され、内側には四&121が形成されてい
る。このJ:うに形成されたロッドカバー14と中間カ
バー6との受凹部12.20問にはシリンダチューブ2
2が、またボス部16と中間カバー6との受凹部11.
18間にはブレーキメタル23が取イ4られ、さらにブ
レーキメタル23の外周には割ブツシュ24が外嵌され
るとともに、シリンダチューブ22にはブレーキピスト
ン25が摺動可能に内装されている。
Reference numeral 13 denotes the above-mentioned intermediate stop mechanism section, and this stop mechanism section 13 is provided with a rod cover 14 opposite to the intermediate cover 6, and boss sections 15 and 16 are provided on both sides of the center of the rod cover 14. A through hole 17 through which the piston rod 9 is inserted is formed in a protruding manner, and a through hole 17 through which the piston rod 9 is inserted is arranged in a V1 step at the same center, and a brake metal is provided on the outer periphery of the through hole 17 of the boss portion 16 in correspondence with the receiving recess 11 of the intermediate cover 6. 23 receiving recess 18
is formed. Further, a ring-shaped convex portion 19 is formed on the outer circumference of the surface of the rod cover 1/l on the boss portion 16 side, and a cylinder tube 22 formed on the outer circumference of the intermediate cover 6 is formed on the outer circumferential side of the convex portion 19. A receiving recess 20 is formed corresponding to the receiving recess 12, and a groove 4&121 is formed inside. The cylinder tube 2 is placed in the receiving recess 12.
2 is also a receiving recess 11 between the boss portion 16 and the intermediate cover 6.
A brake metal 23 is installed between the cylinder tubes 18 and 18, and a split bushing 24 is fitted around the outer periphery of the brake metal 23, and a brake piston 25 is slidably installed inside the cylinder tube 22.

23は上記したブレーキメタルであって、該ブレーキメ
タル23は軟質で耐摩耗性の例えば軸受台金等からなる
もので、ピストンロッド9を挿通可能な内径を有する管
状に形成されるとともに、その軸線方向には全長にわた
ってスリット23aが形成されて、その内径を減縮可能
に設けられている。また、v1ブツシュ24は例えばm
l4(熱処理可能なもの)等よりなるもので、ブレー駐
メタル23の外嵌する管状に形成されるとともに、その
@線方向には全長にわたってスリン1〜24aが形成さ
れて、その内径を減縮可能に設けられている。
Reference numeral 23 denotes the above-mentioned brake metal. The brake metal 23 is made of a soft and wear-resistant material such as a bearing base metal, and is formed into a tubular shape having an inner diameter through which the piston rod 9 can be inserted. A slit 23a is formed along the entire length in the direction, and the inner diameter of the slit 23a can be reduced or contracted. In addition, the v1 bushing 24 is, for example, m
14 (which can be heat treated), etc., and is formed into a tubular shape that fits outside of the braking metal 23, and Slins 1 to 24a are formed over the entire length in the @ line direction, so that the inner diameter can be reduced. It is set in.

25はブレーキピストンであって、シリンダチューブ2
2にJ:り形成されるビス1−ン室A内をピストンチュ
ーブ22及びボス部16に沿って摺動案内されるもので
ばね38を介して18動可能に弾装されている。このプ
レー4−ピストン25はブレーキチューブ22とボス部
16との間を摺!PJJするピストン体26とスカート
部27とが一体に形成され、このビス1〜ン体26によ
りピストン室Aはばね室A1とプレー1開放室A2とに
区画されている。また、スカート部27の内周面には所
定幅の凹部28が設【プられ、同凹部28と?11jブ
ツシュ24との間にはブレーキ作動部29が介装されて
いる。
25 is a brake piston, which is connected to the cylinder tube 2.
It is slidably guided along the piston tube 22 and the boss portion 16 within the screw chamber A formed by the piston tube 22, and is resiliently mounted via a spring 38 so as to be movable 18 times. This play 4-piston 25 slides between the brake tube 22 and the boss portion 16! A piston body 26 that PJJs and a skirt portion 27 are integrally formed, and the piston chamber A is divided into a spring chamber A1 and a play 1 open chamber A2 by the screw body 26. Further, a recess 28 having a predetermined width is provided on the inner circumferential surface of the skirt portion 27. A brake operating section 29 is interposed between the bushing 11j and the bushing 24.

30はブレーキ作動部29の鋼球保持部材であって、割
ブツシュ24の外周に摺動可能に外嵌する管状に形成さ
れるとともに、同保持部U30には複数個の鋼球32を
図示略環状に、かつ複数列(本実施例では3列の場合を
例示した)rl、r2、r3に配設するため鋼球32を
割ブツシュ24の外周を転動可能に納める受孔30が置
設されてい。なお、この鋼球保持部材30の内厚は受孔
31に鋼球32を納めたとき、保持部材30の外周より
鋼球32の一部が所定高さ突出する肉厚に形成されてい
る。このように設けられた鋼球保持部材30とピストン
体26との間にばね33が介装されて同保持部4430
は中間カバー6側に付勢されている。また、スカートn
527の内周面に形成された四部28には例えば合成ゴ
ム等からなる管状の弾性体34が嵌着されるとともに、
同門部28の内側内には複数の鋼球32の列r1.r2
゜「3に対応して複数個(本例では3個例示した)に傾
斜リング35が納められている。この傾斜リング35は
例えば鋼材(熱処理可能なもの)等からなり、その外径
は所定の径に形成されるとともに、内径は図示のように
中間カバー6側に所定の角度で傾斜づる略円錐形状の内
周面36が形成されるとともに、その一部には幅方向に
スリット37が設けられてその径を増減可能に、;9け
られている。このようにブレーキ作動部29を介装した
プレー1ピストン25はばね38にJ:り摺動可能に弾
装され、ブレーキ開放室A2側へ付勢され、同ビス1−
ン25により区画されたばね室A1は中間カバー6に設
番ノだ排気孔39を介して大気中に通気され、また、プ
レーV開放室A2はロッドカバー14に設けられたブレ
ーキ1111放ボート40に連通されている。
Reference numeral 30 designates a steel ball holding member of the brake actuating portion 29, which is formed into a tubular shape that is slidably fitted onto the outer periphery of the split bushing 24, and a plurality of steel balls 32 are held in the holding portion U30 (not shown). In order to arrange the steel balls 32 in an annular manner and in multiple rows (in this example, three rows are illustrated) rl, r2, and r3, a receiving hole 30 is installed to allow the steel balls 32 to roll around the outer periphery of the split bushing 24. It has been done. The inner thickness of the steel ball holding member 30 is such that when the steel ball 32 is placed in the receiving hole 31, a portion of the steel ball 32 protrudes from the outer periphery of the holding member 30 by a predetermined height. A spring 33 is interposed between the steel ball holding member 30 and the piston body 26 provided in this manner, and the holding portion 4430
is urged toward the intermediate cover 6 side. Also, skirt n
A tubular elastic body 34 made of, for example, synthetic rubber is fitted into the four parts 28 formed on the inner peripheral surface of 527, and
Inside the gate 28, a plurality of steel balls 32 are arranged in a row r1. r2
゜A plurality of inclined rings 35 (in this example, three are shown) are housed in correspondence with item 3. The inclined rings 35 are made of, for example, steel (heat treatable), and have a predetermined outer diameter. As shown in the figure, the inner diameter is formed with a substantially conical inner peripheral surface 36 inclined at a predetermined angle toward the intermediate cover 6 side, and a slit 37 is formed in a part thereof in the width direction. The play piston 25 with the brake actuating part 29 interposed therein is slidably mounted on the spring 38, and the brake release chamber is It is biased toward the A2 side, and the same screw 1-
The spring chamber A1 divided by the spring chamber 25 is ventilated to the atmosphere through the exhaust hole 39 provided in the intermediate cover 6, and the play V open chamber A2 is connected to the brake 1111 provided in the rod cover 14 and the release boat 40. It is communicated.

次に、上記のように構成された本実施例の作用及び効果
について説明する。
Next, the operation and effects of this embodiment configured as described above will be explained.

さて、本例中間停止機構付空気圧シリンダ1は空気圧シ
リンダ部2に連設してピストンロッド9を停止トする中
間f? II:m構部13を設けてなるものであって、
中間停止機構部13の中心部にはビス1〜ン0ツド9を
摺動可能に沖通し、かつピストンロッド9を把持可能に
それぞれスリット23a。
Now, the pneumatic cylinder 1 with an intermediate stop mechanism of this example is connected to the pneumatic cylinder part 2 to stop the piston rod 9. II: m structure 13 is provided,
In the center of the intermediate stop mechanism section 13, there are slits 23a through which the screws 1 to 9 can be slidably inserted and the piston rod 9 can be gripped.

24aを有するブレーキメタル23と割ブツシュ24と
を二重管状に設け、この割ブツシュ24の外周にはビス
!ヘン室へをばね室A1とブレーキ開放室A2とに区画
するピストン体26とスカート部27とからなるブレー
キブレーキビス1−ン25をばね室A1にばね38を弾
装してブレーキ開放室A2側に((勢するとともに、プ
レー1〕ビス]−ン25のスカート部27と割ブツシュ
24との間には、同訓ブツシュ24の外周に複数個の鋼
球コ32を環状に、かつ転動可能に配設した鋼球列r1
゜r2.r3を複数列設けた鋼球保持部材30ど、この
鋼球保持部材30の外周に各1フ状鋼球列rl。
A brake metal 23 having a diameter 24a and a split bush 24 are provided in a double tube shape, and a screw is attached to the outer periphery of the split bush 24. A brake screw 1-25 consisting of a piston body 26 and a skirt portion 27, which divides the brake chamber into a spring chamber A1 and a brake release chamber A2, is loaded with a spring 38 in the spring chamber A1 and moved to the brake release chamber A2 side. Between the skirt portion 27 of the screw 25 and the split bushing 24, a plurality of steel balls 32 are arranged in an annular shape around the outer periphery of the bushing 24 and are rolled. Steel ball row r1 arranged as possible
゜r2. The steel ball holding member 30 is provided with a plurality of rows of steel balls r3, each having one flat-shaped steel ball row rl on the outer periphery of the steel ball holding member 30.

r2.r3に対応してプレー1開放室へ2側に拡171
状に傾斜する内周面36を打ηる複数の傾斜リング35
と、さらに各鋼球32をピストンロッド9の中心に向っ
て均等加圧IiJ能とする弾性体34とからなるブレー
キ作動部29を介装する構成としたちのである。したが
って、ごストシロラド9の前後進作動はボート5.7よ
り圧縮空気を給排することで前後進されるもので、この
ピストンロッド9の前後進過程では空気圧シリンダ部2
と同系統のB縮空気供給源からの圧縮空気がブレーキ開
放ボート40よりブレーキ1;11放室A2に供給され
ていて、ブレーキピストン25ばばね38に抗して中間
カバー6側へ押動されて中間カバー6に当接された状態
で停止され、このブレーキビス1〜ン25のスカート部
27の内周面に形成した四部28に嵌合した複数の傾斜
リング35b一体に移動される一方、鋼球列rl、r2
.r3を配設した鋼球保持部材30はぽね33により付
勢されて、同様に中間カバー6に当接された状(Bにあ
って、この場合、各鋼球324よ各傾斜リング35の内
周面36と接触するか若干の隙間を有して離隔された状
態にあるととbに、プレー1メタル23及び割ブッシュ
24のスリブl−23a、?+、aの幅も通常の状態に
保持されてピストンロッド9は摺動可能であって、停止
解除の状態にある。しかして、この停止解除の状態にお
いてブレーキ開放室A2の圧縮空気が損気されると、ブ
レーキピストン25はばね38により開放室A2側へ移
動され、各傾斜リング35も一体的に移動される。この
ブレーキピストン25の移動により、各傾斜リング35
と対設する鋼球列r1.r2.r3の各鋼球32は傾斜
リングの内周面36の大径側より小径側へ5接状態が移
行する過程で鋼球保持部材30を介してばね33に抗し
て転動しながらピストンロッド9の中心方向へ移動し、
この内周面36のくさび効宋により、割ブツシュ24.
ブレーキメタル23の外周を圧迫してそのスリブl−2
4a、23aの幅を減縮してピストンロッド9の外周を
グリップ状に圧接して摩r!A抵抗にJ、リピストンロ
ツド9は停止される。したがって、ブレーキ開放室へ2
を1月見することでピストンロッド9の往復作動の何れ
の位置においても停止することができる。
r2. Corresponding to r3, expand play 1 open room to 2 side 171
A plurality of inclined rings 35 strike an inner circumferential surface 36 inclined in a shape.
In addition, a brake actuating section 29 is interposed therein, which is made up of an elastic body 34 that applies uniform pressure IiJ to each steel ball 32 toward the center of the piston rod 9. Therefore, the forward and backward movement of the gas cylinder 9 is carried out by supplying and discharging compressed air from the boat 5.7, and during the forward and backward movement of the piston rod 9, the pneumatic cylinder section 2
Compressed air from a compressed air supply source B in the same system is supplied from the brake release boat 40 to the brake 1;11 release chamber A2, and is pushed toward the intermediate cover 6 side against the brake piston 25 spring 38. The brake screws 1 to 25 are stopped in a state in which they are in contact with the intermediate cover 6, and moved together with the plurality of inclined rings 35b fitted in the four parts 28 formed on the inner peripheral surface of the skirt part 27 of the brake screws 1 to 25. Steel ball row rl, r2
.. The steel ball holding member 30 on which r3 is arranged is biased by the bones 33 and is in contact with the intermediate cover 6 in the same way (in B, in this case, each steel ball 324 and each inclined ring 35 If they are in contact with the inner circumferential surface 36 or are separated from each other with a slight gap, the widths of the sleeves l-23a, ?+, and a of the play 1 metal 23 and the split bushing 24 are also in the normal state. , the piston rod 9 is slidable and is in a stopped state.When the compressed air in the brake release chamber A2 is depleted in this stopped state, the brake piston 25 is moved by the spring 38. The brake piston 25 is moved toward the open chamber A2 side, and each inclined ring 35 is also moved together.By this movement of the brake piston 25, each inclined ring 35
Steel ball row r1. r2. Each steel ball 32 of r3 rolls against the spring 33 via the steel ball holding member 30 while the piston rod Move towards the center of 9,
Due to the wedge effect of this inner peripheral surface 36, the split bush 24.
Press the outer periphery of the brake metal 23 to remove the sleeve l-2.
The widths of 4a and 23a are reduced, and the outer periphery of the piston rod 9 is pressed into a grip-like manner. Due to resistance A, the piston rod 9 is stopped. Therefore, 2
By looking at , it is possible to stop the piston rod 9 at any position during its reciprocating operation.

また、このことは圧縮空気供給源が何らかの原因で供給
作動が停止された場合においてもピストンロッド9を停
止することができ、また、圧縮空気供給源が復帰した場
合には、空気圧シ、リング部2へ圧縮空気が供給される
と同時にブレーキ開放室A2へも圧縮空気が供給されて
停止状態を直ちに解除してピストンロッド9は作動され
る。とくに、中間停止様構部13においては、プレー(
ピストン25のスカート部27と割ブッシュ24との間
には、何割ブッシコ24の外周に複数個の鋼球32を環
状に、かつ転動可能に配設した鋼球列rl。
Moreover, this means that even if the supply operation of the compressed air supply source is stopped for some reason, the piston rod 9 can be stopped, and when the compressed air supply source is restored, the pneumatic cylinder and ring At the same time, compressed air is supplied to the brake release chamber A2, the stopped state is immediately released, and the piston rod 9 is activated. In particular, in the intermediate stop-like structure 13, play (
Between the skirt portion 27 of the piston 25 and the split bush 24, there is a steel ball row RL in which a plurality of steel balls 32 are annularly and rollably disposed around the outer periphery of the split bush 24.

r2.r3を複数列設LJk鋼球保持部材30と、この
鋼球保持部4430の外周に各環状鋼球列に対応してブ
レーキ開放室A2側に拡開状に傾斜する内周面36を有
する複数の傾斜リング35と、さらに各鋼球32をビス
1〜ンOツド9の中心に向って均等加J」可能とする弾
性体34とからhるプレー−1年初部29を介装する構
成としたものであるから、プレー4:ピストン25の移
動により鋼球列rl、r2.r3の各鋼球32は傾斜リ
ング35により転動しながらビス1−ンロツド9の中心
方向へ移動するものであるから、ブレーキメタル23の
ピストンロッド9に対する圧接面積が大きくなって制動
効率が高くなり、また、ブレーキメタル23の単位面積
、1なわち、鋼球32の1個当りの作用力は鋼球32の
個数が多ければ少なくてよいので、ブレーキメタル23
のW粍Mが少なくてすみ、制動回数を多く取ることがで
きるとともに、傾斜リンク35、鋼球32おJ、び割ブ
ッシュ2/Iは熱処理可能な鋼材により形成したもので
あるから、鋼球32の1個当りの作用力の少なくてにい
ことと相俟ってフレー4:ング現象を著減することがで
きる。また、各傾斜リング35にスリブ]へ37を設け
、その外周に弾性体34を設置ノだので、傾斜リング3
5に内周面36の1幀斜角、径秀に加工上の:?j差を
生じてす、傾斜リング35のスリブト370間縮および
弾性体340弾性変形により各鋼球のピストン[]ツド
の中心方向への移ω+ff1iを均一にづることができ
て、割ブッシュ24の外周を均等に加圧することができ
る等多くの特長がある。
r2. A plurality of LJk steel ball holding members 30 having a plurality of rows of r3, and an inner circumferential surface 36 on the outer periphery of the steel ball holding portion 4430 that is inclined to expand toward the brake release chamber A2 side in correspondence with each annular steel ball row. The construction includes an inclined ring 35 and an elastic body 34 that allows each steel ball 32 to be applied uniformly toward the center of the screws 1 to 9. Play 4: Due to the movement of the piston 25, the steel ball rows rl, r2. Since each steel ball 32 of r3 moves toward the center of the screw 1-rod 9 while rolling by the inclined ring 35, the area of pressure contact of the brake metal 23 with the piston rod 9 becomes large, and the braking efficiency becomes high. , In addition, since the unit area of the brake metal 23, 1, that is, the acting force per steel ball 32, can be small if the number of steel balls 32 is large, the brake metal 23
The number of times of braking can be increased, and since the inclined link 35, steel balls 32 and split bushes 2/I are made of heat-treatable steel, steel balls can be used. Coupled with the fact that the acting force per 32 is small and small, the fraying phenomenon can be significantly reduced. In addition, since each inclined ring 35 is provided with a sleeve 37 and an elastic body 34 is installed on the outer periphery of the sleeve, the inclined ring 3
5 is the 1-horizontal bevel of the inner circumferential surface 36, and the machining is: ? Due to the shrinkage of the slit 370 of the inclined ring 35 and the elastic deformation of the elastic body 340, the movement ω+ff1i of each steel ball toward the center of the piston [] can be made uniform, and the split bush 24 It has many features such as being able to apply pressure evenly around the outside.

なお、上記実施例においては、割ブツシュ24の外周を
均等に加圧ηるため、各傾斜リング35にスリット37
を設【ノ、その外周に弾性体34を設けて例示したが、
これに限定するもので9よなく、例えば第3図に示すよ
うに傾斜リング35の外周に設けた弾性体34に代え鋼
球保持部材30に若干大ぎい受孔31aを設け、この受
孔31aの図示ブレーキ開放室△2側にぞれぞれ弾性体
41を嵌込み固定して同受孔31aに鋼球32を転動可
能に納める構成とすることで各鋼球のビス1〜ンロツド
9の中心方向への移動量を均一に与えることができ、割
ブツシュ24の外周を均等に加圧することができる。な
お、この場合傾斜リング35にはスリン1−は形成され
ていないものが使用され、その他の構成は上記実施例と
同様である。
In the above embodiment, in order to apply pressure evenly to the outer circumference of the split bush 24, each inclined ring 35 is provided with a slit 37.
Although the example was given by providing an elastic body 34 on the outer periphery of the elastic body 34,
For example, as shown in FIG. 3, instead of the elastic body 34 provided on the outer periphery of the inclined ring 35, a slightly larger receiving hole 31a is provided in the steel ball holding member 30, and this receiving hole 31a is not limited to this. By fitting and fixing the elastic bodies 41 into the brake release chambers △2 shown in the figure, and rolling the steel balls 32 into the receiving holes 31a, the screws 1 to 9 of each steel ball can be fixed. The amount of movement toward the center of the split bushing 24 can be uniformly applied, and the outer circumference of the split bush 24 can be evenly pressurized. In this case, the inclined ring 35 without the ring 1- is used, and the other configurations are the same as in the above embodiment.

(発明の効果) さて、本発明は、空気圧シリンダ部に連設してピストン
ロッドを停止する中間停止機構部を設けて<76中間停
止機構付空気圧シリンダぐあって、前記中間停止機構部
の中心部には前記ピストンロッドを肥持可能に沖通し、
かつビス1〜ンロツドを把持可能にそれぞれスリットを
イiするブレーキメタルと基プツシ]とを二重管状に設
け、このI、11ブツシユの外周にはピストン室をばね
卒とプレー手。
(Effects of the Invention) Now, the present invention provides an intermediate stop mechanism part that is connected to the pneumatic cylinder part and stops the piston rod. The above-mentioned piston rod is passed through the offshore so that it can be held thickly,
A brake metal and a base pusher each having a slit so as to be able to grip screws 1 to 11 are provided in a double tube shape, and a piston chamber is provided on the outer periphery of the bushes I and 11 with a spring hole and a play hand.

開放室とに区画するビス]・ン体とメカ−1〜部とから
なるブレーキピストンを前記ばね室側にばねを弾装して
プレー−1−開放室側に付M−Jるとともに、前記ブレ
ーキピストンのスカート部と割ブツシュの間には、開割
ブツシュの外周に複数周の鋼球を環状にかつ転動可能に
配設した鋼球列を複数列設けた鋼球保持部材と、該鋼球
保持部材の外周に前記Ir&状の鋼球列に対応して前記
ブレ−キピストンに拡開状に傾斜りる内周面を有する複
数の傾斜リングと、さらに前記各鋼球を前記ピストンロ
ッドの中心に向って均等加圧可能とする弾性体とからな
るブレーキ作動部を介装置る構成としたことにJ:す、
ブレーキピストンの移動ににり復改の鋼球列の各鋼球は
傾斜リングにJ:り転動しながらピストンロッドの中心
方向へ移動するものであるから、ブレーキメタルのビス
i・ンOツドに対する圧接面積が大きくなって制動効率
が高くなり、また、ブレーキメタルの単位面積、Jなわ
ち、鋼球の1個当りの作用力は鋼球の個数が多番ノれば
少なくてよいので、ブレーキメタルの摩耗量が少なくて
すみ、制動回数を多く取ることができるとともに、傾斜
リンク、鋼球おにび割ブツシュは熱処理可能な鋼材によ
り形成したものであるから、鋼球の1個当りの作用力の
少なくてよいことと相俟ってフレーキング現象を著減す
ることができる。また、プレm:1“作り3部に弾性体
を設けたので、傾斜リングに内周面の傾斜角、径等に加
工1−の誤差を生じても、弾fi体の弾性変形ににり各
鋼球のピストンロッドの中心り向への移動量を均一にす
ることができて、割ブツシュの外周を均等に加圧するこ
とができるので、中間停止機構付空気圧シリンダとして
その資するとこる極めて人である。
A brake piston consisting of a screw body and a mechanism 1 is mounted on the play 1 open chamber side with a spring loaded on the spring chamber side, and Between the skirt portion of the brake piston and the split bushing, there is provided a steel ball holding member having a plurality of rows of steel balls in which steel balls with multiple circumferences are arranged in an annular and rollable manner on the outer periphery of the split bushing; A plurality of inclined rings having inner circumferential surfaces inclined in a widening manner toward the brake piston correspond to the Ir& shaped steel ball rows on the outer periphery of the steel ball holding member, and each of the steel balls is further connected to the piston rod. The structure includes a brake actuating part consisting of an elastic body that can apply pressure uniformly toward the center of the J:S,
As the brake piston moves, each steel ball in the row of steel balls rolls on the inclined ring and moves toward the center of the piston rod. Braking efficiency increases as the pressure contact area increases, and the unit area of the brake metal, J, or the acting force per steel ball, can be reduced if the number of steel balls is large. The amount of wear on the brake metal is small and the number of brakings can be increased, and since the inclined link and steel ball split bushings are made of heat-treatable steel, the amount of wear per steel ball is reduced. Coupled with the fact that less acting force is required, the flaking phenomenon can be significantly reduced. In addition, since an elastic body is provided in the 3rd part of the prem: 1", even if there is a machining error in the inclination angle, diameter, etc. of the inner circumferential surface of the inclined ring, the elastic deformation of the elastic fi body will not be affected. Since the amount of movement of each steel ball toward the center of the piston rod can be made uniform, and the outer circumference of the split bush can be evenly pressurized, it is extremely useful as a pneumatic cylinder with an intermediate stop mechanism. It is.

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

図面は本発明の一実施例を示し、第1図はg1所面図、
第2図は第1図のII−II線断面図、第3図はブレー
キ作動部の他の実施例を示す断面図、第4図は従来例を
示す一部所面図である。 1・・・中間停止磯構(=J空気圧シリンダ2・・・空
気圧シリンダ部 9・・・ピストンロッド 13・・・中門停止I:機構部 23・・・ブレーキメタル  23a・・・スリット2
4・・・基プツシ124a・・・スリンi・25・・・
ブレーキピストン
The drawings show one embodiment of the present invention, and FIG. 1 is a top view of g1;
FIG. 2 is a sectional view taken along the line II--II in FIG. 1, FIG. 3 is a sectional view showing another embodiment of the brake actuating section, and FIG. 4 is a partially sectional view showing a conventional example. 1... Intermediate stop rock structure (=J Pneumatic cylinder 2... Pneumatic cylinder part 9... Piston rod 13... Middle gate stop I: Mechanism part 23... Brake metal 23a... Slit 2
4... Basic push 124a... Surin i 25...
brake piston

Claims (1)

【特許請求の範囲】[Claims] 空気圧シリンダ部に連設してピストンロッドを停止する
中間停止機構部を設けてなる中間停止機構付空気圧シリ
ンダであって、前記中間停止機構部の中心部には前記ピ
ストンロッドを摺動可能に挿通し、かつピストンロッド
を把持可能にそれぞれスリットを有するブレーキメタル
と割ブッシュとを二重管状に設け、この割ブッシュの外
周にはピストン室をばね室とブレーキ開放室とに区画す
るピストン体とスカート部とからなるブレーキピストン
を前記ばね空調にばねを弾装してブレーキ開放室側に付
勢するとともに、前記ブレーキピストンのスカート部と
割ブッシュの間には、同割ブッシュの外周に複数個の鋼
球を環状にかつ転動可能に配設した鋼球列を複数列設け
た鋼球保持部材と、該鋼球保持部材の外周に前記環状の
鋼球列に対応して前記ブレーキ開放室側に拡開状に傾斜
する内周面を有する複数の傾斜リングと、さらに前記各
鋼球を前記ピストンロッドの中心に向って均等加圧可能
とする弾性体とからなるブレーキ作動部を介装する構成
としたことを特徴とする中間停止機構付空気圧シリンダ
A pneumatic cylinder with an intermediate stop mechanism, which is provided with an intermediate stop mechanism part that is connected to a pneumatic cylinder part and stops a piston rod, the piston rod being slidably inserted into the center of the intermediate stop mechanism part. A brake metal and a split bushing each having a slit are provided in a double tubular shape so that the piston rod can be gripped, and a piston body and a skirt are provided on the outer periphery of the split bushing to divide the piston chamber into a spring chamber and a brake release chamber. A spring is loaded into the spring air conditioner to bias the brake piston toward the brake release chamber, and between the skirt portion of the brake piston and the split bush, there are a plurality of parts on the outer periphery of the split bush. a steel ball holding member having a plurality of rows of steel balls arranged in an annular manner so as to be rollable; and a steel ball holding member provided with a plurality of rows of steel balls arranged in an annular manner so as to be rollable; A brake actuating section is provided which includes a plurality of inclined rings having an inner circumferential surface that is inclined in a widening shape, and an elastic body that enables uniform pressure to be applied to each of the steel balls toward the center of the piston rod. A pneumatic cylinder with an intermediate stop mechanism, characterized by having the following structure.
JP61045670A 1986-03-03 1986-03-03 Pneumatic cylinder with intermediate stop mechanism Expired - Fee Related JPH0610483B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61045670A JPH0610483B2 (en) 1986-03-03 1986-03-03 Pneumatic cylinder with intermediate stop mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61045670A JPH0610483B2 (en) 1986-03-03 1986-03-03 Pneumatic cylinder with intermediate stop mechanism

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP1329292A Division JPH0672603B2 (en) 1992-01-28 1992-01-28 Pneumatic cylinder with intermediate stop mechanism

Publications (2)

Publication Number Publication Date
JPS62204005A true JPS62204005A (en) 1987-09-08
JPH0610483B2 JPH0610483B2 (en) 1994-02-09

Family

ID=12725819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61045670A Expired - Fee Related JPH0610483B2 (en) 1986-03-03 1986-03-03 Pneumatic cylinder with intermediate stop mechanism

Country Status (1)

Country Link
JP (1) JPH0610483B2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556901U (en) * 1978-10-12 1980-04-17
JPS5743762A (en) * 1980-08-26 1982-03-11 Nippon Musical Instruments Mfg Analyser for tennis
JPS5814507U (en) * 1981-07-22 1983-01-29 オイルドライブ工業株式会社 Plunger locking device
JPS59169407U (en) * 1983-04-29 1984-11-13 合資会社 ヒロタカ精機 Locking mechanism for linear movement axis
JPS6077801U (en) * 1983-11-04 1985-05-30 エヌオーケー株式会社 Air cylinder control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556901U (en) * 1978-10-12 1980-04-17
JPS5743762A (en) * 1980-08-26 1982-03-11 Nippon Musical Instruments Mfg Analyser for tennis
JPS5814507U (en) * 1981-07-22 1983-01-29 オイルドライブ工業株式会社 Plunger locking device
JPS59169407U (en) * 1983-04-29 1984-11-13 合資会社 ヒロタカ精機 Locking mechanism for linear movement axis
JPS6077801U (en) * 1983-11-04 1985-05-30 エヌオーケー株式会社 Air cylinder control device

Also Published As

Publication number Publication date
JPH0610483B2 (en) 1994-02-09

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