JPS6110136A - Pressure regulator for hydraulic machine - Google Patents

Pressure regulator for hydraulic machine

Info

Publication number
JPS6110136A
JPS6110136A JP13062784A JP13062784A JPS6110136A JP S6110136 A JPS6110136 A JP S6110136A JP 13062784 A JP13062784 A JP 13062784A JP 13062784 A JP13062784 A JP 13062784A JP S6110136 A JPS6110136 A JP S6110136A
Authority
JP
Japan
Prior art keywords
valve member
cylinder cap
hydraulic oil
cylinder
hydraulic
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
JP13062784A
Other languages
Japanese (ja)
Other versions
JPH0467053B2 (en
Inventor
Fumio Itatsu
板津 文夫
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 JP13062784A priority Critical patent/JPS6110136A/en
Publication of JPS6110136A publication Critical patent/JPS6110136A/en
Publication of JPH0467053B2 publication Critical patent/JPH0467053B2/ja
Granted legal-status Critical Current

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  • Fluid-Damping Devices (AREA)

Abstract

PURPOSE:To obtain a pressure regulator of simple and compact mechanism by providing a restriction path between a cylinder cap arranged at the tip of cylinder and a valve member contactable with said cap while making said restriction path adjustable from the outside. CONSTITUTION:A cylinder cap 9 having a hole 10 to be inserted with a rod 5 is fitted at the tip of cylinder 4 and a rotatable valve member 39 is contacted against the tip section of the cap 9. A plurality of restricting sections 17 having different size are provided at the valve member 39 side of cap 9 while a guide hole 43 is made at the position of valve member 39 to be matched selectively with the restricting section 17. The valve member 39 is rotated to select the restricting section 17 to be connected with the guide hole 43 thus to perform pressure regulation.

Description

【発明の詳細な説明】 技術分野 この発明は油圧シリンダ又は油圧アブソーバ等のシリン
ダとピストンとを備えた油圧機器の圧力調整装置に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a pressure regulating device for hydraulic equipment including a cylinder such as a hydraulic cylinder or a hydraulic absorber and a piston.

発明の目的 こめ発明の目的は圧力の調整を容易に行うことができる
とともに、そのための機構を簡単かつコンパクトに構成
することができる新規な油圧機器における圧力調整装置
を提供することにある。
OBJECTS OF THE INVENTION An object of the invention is to provide a new pressure adjustment device for hydraulic equipment that can easily adjust pressure and has a simple and compact mechanism.

発明の構成 この発明は上記の目的を達成するために、第2図に示す
ように、ケーシング内にシリンダを収容し、さらにシリ
ンダ内にはピストンを取付けたピストンロッドを往復動
可能に配置して、前記シリンダの一端部に取付けたシリ
ンダキャップにはピストンロッドを挿通するための挿通
孔を貫設し、この挿通孔の内周壁とピストンロッド外周
面との間に作動油通過路を形成し、さらに前記シリンダ
キャップの前側壁に回動可能に取付けたバルブ部材とシ
リンダキャップにて包囲して、前記作動油通過路に連通
し、かつ同作動油通過路を経て作動油か流入される循環
室を形成するとともに、前記シリンダキャップの前側壁
にはバルブ部材の案内孔を介して循環室へと連通ずる互
いに大きさが異なる複数個の絞り四部を設け、さら+=
シリンダキャップの外周面の一部には前記絞り四部と連
通ずる複数個のスリットを切欠形成し、前記作動油通過
路、循環室、絞り凹部、スリット4vて作動油の通路を
形成したものである。
Structure of the Invention In order to achieve the above object, the present invention has a cylinder housed in a casing, and a piston rod with a piston attached therein arranged so as to be able to reciprocate, as shown in FIG. , an insertion hole for inserting the piston rod is provided in the cylinder cap attached to one end of the cylinder, and a hydraulic oil passage is formed between the inner peripheral wall of the insertion hole and the outer peripheral surface of the piston rod, Furthermore, a circulation chamber surrounded by a valve member rotatably attached to the front side wall of the cylinder cap and the cylinder cap, communicates with the hydraulic oil passage, and into which hydraulic oil flows through the hydraulic oil passage. The front wall of the cylinder cap is provided with a plurality of four orifices of different sizes that communicate with the circulation chamber through the guide hole of the valve member, and
A plurality of slits communicating with the four throttle parts are cut out in a part of the outer circumferential surface of the cylinder cap, and the hydraulic oil passage, the circulation chamber, the throttle recess, and the slits 4v form a hydraulic oil passage. .

実施例 以下、この発明を油圧アブソーバに具体化した第1の実
施例を第1.2図に従って詳述する。
EXAMPLE A first example in which the present invention is embodied in a hydraulic absorber will be described in detail below with reference to FIG. 1.2.

第1図において1はアブソーバ本体、2は同アブソーバ
本体・1の先端部に取付けられて、これとともに油圧ア
ブソーバを構成する圧力調整装置である。
In FIG. 1, reference numeral 1 denotes an absorber body, and 2 denotes a pressure regulating device that is attached to the tip of the absorber body 1 and together constitutes a hydraulic absorber.

3はアブソーバ本体1の外周面を構成する円筒状のケー
シングであって、その内部にはケーシング3とほぼ同一
長さに形成した円筒状のシリンダ4が収容されている。
Reference numeral 3 denotes a cylindrical casing constituting the outer peripheral surface of the absorber body 1, and a cylindrical cylinder 4 formed to have approximately the same length as the casing 3 is housed inside the casing.

なお、シリンダ4の周壁とケーシング3の周壁との間に
は作動油流動部Eが形成されている。5はシリンダ4内
において往復動可能に配置したピストンロッドであって
、その基端にはピストン6が固定されるとともをこ、先
端は圧力調整装置2を貫通して外部に向かって延びてい
る。7はピストンロッド5の露出端に固定された可動側
の取付部、また8はケーシングの基端面に固定された固
定側の取付部である。
Note that a hydraulic oil flow portion E is formed between the peripheral wall of the cylinder 4 and the peripheral wall of the casing 3. A piston rod 5 is arranged to be able to reciprocate within the cylinder 4. A piston 6 is fixed to the base end of the piston rod, and the tip extends outward through the pressure regulator 2. There is. Reference numeral 7 designates a movable attachment portion fixed to the exposed end of the piston rod 5, and reference numeral 8 denotes a fixed attachment portion fixed to the base end surface of the casing.

9は前記シリンダ4の先端に嵌着固定したシリンダキャ
ップであって、その中央部には前記ロッド5が挿通され
る挿通孔10が貫設されている。
Reference numeral 9 denotes a cylinder cap that is fitted and fixed to the tip of the cylinder 4, and an insertion hole 10 through which the rod 5 is inserted is provided in the center of the cylinder cap.

このシリンダキャップ9はシリンダ4の先端部内に圧入
される嵌入部11と、2の嵌入部11より大径の大径部
13と、その大径部13よりも小径の小径筒部12とか
らなっている。また挿通孔10はロッド5よりもやや大
径に形成され、挿通孔10の内周壁とロッド5の外周面
との間に作動油通過路14が形成され、さらに嵌入部1
1の内側にはI′Jil記挿通孔10よりも大径の凹部
15が形成されている。16は前記シリンダキャップ9
0大径部13の外周面において等角度を置いて切欠形成
した複数個のスリット、17は大径部13と小径筒部1
2との段差面に切欠形成した、互いに大きさが異なる複
数個の絞り部であって、0σ記スリツト16と連通ずる
ように形成されている。
This cylinder cap 9 is made up of a fitting part 11 that is press-fitted into the tip of the cylinder 4, a large diameter part 13 that is larger in diameter than the fitting part 11 of 2, and a small diameter cylindrical part 12 that is smaller in diameter than the large diameter part 13. ing. The insertion hole 10 is formed to have a slightly larger diameter than the rod 5, and a hydraulic oil passage 14 is formed between the inner peripheral wall of the insertion hole 10 and the outer peripheral surface of the rod 5.
A recess 15 having a larger diameter than the insertion hole 10 is formed inside the hole 1 . 16 is the cylinder cap 9
0 A plurality of slits formed at equal angles on the outer peripheral surface of the large diameter portion 13, 17 are the large diameter portion 13 and the small diameter cylindrical portion 1.
A plurality of constricted portions having different sizes are formed in the stepped surface with respect to the 0σ slit 16, and are formed to communicate with the 0σ slit 16.

21はアブソーバ本体lのケーシング3の先端に我人固
定した圧力調整装!lt、2の取付筒であって、その基
端には前記シリンダ4の外周面との間)ζ所定間隔を有
する環状の間隙を形成するように開口部22が設けられ
るとともに、その先端部外周面には嵌着突条23が形成
されている。なお、21aは取付筒21の先端面に凹設
した保持凹部であり、21bは同じく取付筒21の外周
面に突設した指標であるが、これら21a、21bの詳
細については後述する。
21 is a pressure adjustment device fixed to the tip of the casing 3 of the absorber body L! lt, 2, the base end of which is provided with an opening 22 so as to form an annular gap having a predetermined distance from the outer peripheral surface of the cylinder 4, and the outer periphery of the distal end thereof. A fitting protrusion 23 is formed on the surface. Note that 21a is a holding recess provided on the distal end surface of the mounting tube 21, and 21b is an index similarly provided protruding on the outer circumferential surface of the attachment tube 21, but details of these 21a and 21b will be described later.

24は+)iJ記取付筒21の先端部に対して回動操作
可能tて外嵌した椀状のグリップであって、第1E)て
示すように半割状態の一対のグリップ片24a 、24
bを連結リング25にて一体的に組付けることによって
形成されている。26は第2図に示すように前記グリッ
プ24の内周面に形成した嵌着凹条であって、前記取付
筒21の嵌着突条23との嵌合により、グリップ24を
取付筒21に対して離脱不能に保持している。
Reference numeral 24 denotes a bowl-shaped grip rotatably fitted onto the tip of the mounting tube 21, and as shown in 1E), there are a pair of grip pieces 24a, 24 in a half-split state.
b are integrally assembled using a connecting ring 25. As shown in FIG. 2, reference numeral 26 denotes a fitting groove formed on the inner circumferential surface of the grip 24, which allows the grip 24 to be attached to the mounting tube 21 by fitting with the fitting protrusion 23 of the mounting tube 21. It is held in such a way that it cannot be separated from the enemy.

27はグリップ24の基端部外周面に突設した複数個(
この実施例では6個)の位置合わせ片であって、前記取
付筒21の指標21bと対応させて使用されるものであ
る。
27 is a plurality of protruding parts (
In this embodiment, there are six positioning pieces, which are used in correspondence with the indicators 21b of the mounting tube 21.

28はグリップ24の先端部内面において位置合わせ片
27と対応するように設けた凹状の収容孔であって、各
収容孔28内には取付筒21の保持凹部21aに嵌合す
る保合ボール29と、その保合ボール29を嵌入方向に
向けて付勢するばね30とがそれぞれ収容されている。
Reference numeral 28 denotes a concave accommodation hole provided on the inner surface of the tip end of the grip 24 so as to correspond to the positioning piece 27. Inside each accommodation hole 28 is a retaining ball 29 that fits into the holding recess 21a of the mounting tube 21. and a spring 30 that biases the locking ball 29 in the insertion direction.

なお、これら位置合わせ片、係合ボール、ばね21 a
 + 29 +30とによって保持部材が構成され指標
21bと位置合わせ片27とを一致させたときには係合
ボール29と保持凹部21aとの嵌合によりグリップ2
4の回動位置が保持されるようになっている。
Note that these positioning pieces, engagement balls, and springs 21a
+ 29 + 30 constitute a holding member, and when the index 21b and the alignment piece 27 are aligned, the grip 2 is held by fitting the engaging ball 29 and the holding recess 21a.
Rotation position 4 is maintained.

31は前記取付筒21内に回動可能に収容された回動ス
リーブであってその外径は取付筒21の内径とほぼ同一
に形成されている。この回動スリーブ31はグリップ2
4の先端開口32内に嵌入される小径部33′#;:お
いてキーKを介してグリップ24と一体回動可能となっ
ている。まk、回動スリーブ31の中央部ンては前記ロ
ッド5が挿通される挿通孔34が形成され、同挿通孔3
4の基端側は大径四部35が形成されている。36は回
動スリーブ31の大径四部35内に圧入した厚肉のi状
をなすゴムバッキングであって、その内周面には作動油
Aが先端側外部へ漏洩することを防止するための鋸歯状
の油切り部36aが形成されている。又、回動スリーブ
31の外周面に凹設された環状溝37内には取伺筒21
と回動スリーブ31との間に侵入した作動油Aが外部へ
漏洩することを防止するためのシールリング38かに着
されている。
Reference numeral 31 denotes a rotating sleeve rotatably housed within the mounting tube 21, and its outer diameter is formed to be approximately the same as the inner diameter of the mounting tube 21. This rotating sleeve 31 is the grip 2
The small diameter portion 33' fitted into the tip opening 32 of 4 is rotatable integrally with the grip 24 via a key K. Also, an insertion hole 34 through which the rod 5 is inserted is formed in the center of the rotation sleeve 31, and the insertion hole 34
A large diameter portion 35 is formed on the proximal end side of 4. Reference numeral 36 denotes a thick-walled i-shaped rubber backing press-fitted into the large-diameter four portions 35 of the rotating sleeve 31, and a rubber backing 36 is provided on its inner peripheral surface to prevent the hydraulic oil A from leaking to the outside of the tip side. A serrated oil cutter 36a is formed. Further, a receiving cylinder 21 is disposed in an annular groove 37 recessed in the outer circumferential surface of the rotating sleeve 31.
A seal ring 38 is attached to prevent the hydraulic oil A that has entered between the rotary sleeve 31 and the rotary sleeve 31 from leaking to the outside.

39はl!IiJ記シリンダシリンダキャップ9部12
に対して回動可能に外嵌した円筒状のバルブ部材であっ
て、その先端部内周面に環状の段差4oを設けて、これ
より先端側には大径四部41が形成されている。このバ
ルブ部材39の内端はキー39a等の連結手段にて回動
スリーブ31に固着され、同回動スリーブ31の大径四
部35とバルブ部材39の大径四部41シリンダキヤツ
プ9の小径筒部12の先端面とによって包囲され、かつ
1)II記作動油通過路14に連通ずる循環室42が形
成されている。43はバルブ部材39の段差40より基
端側に貫設した案内孔であって、その先端が循環室42
に連通している。
39 is l! IiJ cylinder cylinder cap 9 part 12
It is a cylindrical valve member that is rotatably fitted onto the outside of the valve member, and has an annular step 4o on the inner circumferential surface of its distal end, and a large-diameter four portion 41 is formed on the distal end side of the annular step 4o. The inner end of this valve member 39 is fixed to the rotating sleeve 31 by a connecting means such as a key 39a, and the large diameter portion 35 of the rotating sleeve 31 and the large diameter portion 41 of the valve member 39 are connected to the small diameter cylindrical portion of the cylinder cap 9. A circulation chamber 42 is formed which is surrounded by the distal end surface of 12 and communicates with the hydraulic oil passage 14 described in 1) II. Reference numeral 43 denotes a guide hole extending from the step 40 of the valve member 39 to the proximal end side, the tip of which is connected to the circulation chamber 42.
is connected to.

44は前記循環室42内において、ゴムバッキング36
を覆う座金45とバルブ部材39との間に介装した圧縮
はねてあって、この圧縮はね44のばね力によってバル
ブ部材39がシリンダキャップ9に圧接されている。
44 is a rubber backing 36 in the circulation chamber 42.
A compression spring is interposed between the washer 45 covering the valve member 39 and the valve member 39, and the valve member 39 is pressed against the cylinder cap 9 by the spring force of the compression spring 44.

さて、上記のように構成した油圧アブソーバにおける圧
力調整装置2の作用について説明する。
Now, the operation of the pressure regulating device 2 in the hydraulic absorber configured as described above will be explained.

第1図に示すように、グリップ24を回動操作して、そ
の位置合わせ片27のうちの1つを取付定角度だけ一体
回動されるとともに、別のキー39aを介して、それと
一体的)nバルブ部材39が回動されて、同バルブ部材
39の案内孔43がシリンダキャップ9の紋り部17と
合致する。そして、この状態においてアブソーバ本体1
のピストン6を、例えばfJ1図において右方に向がっ
て移動させると、シリンダ4内の作動油Aは作動油通過
路14を経て循環室42内に流入し、さらに同循環室4
2からバルブ部材39の案内孔43、シリ:、’y、+
ヤップ9の絞り凹部17、スリット16を経て取付筒2
1内に流出した後、取付筒21の開口部22を通過して
作動油出入部Eに流動する。
As shown in FIG. 1, by rotating the grip 24, one of the positioning pieces 27 is integrally rotated by a predetermined mounting angle, and the positioning piece 27 is integrally rotated through another key 39a. ) The valve member 39 is rotated so that the guide hole 43 of the valve member 39 matches the ridge 17 of the cylinder cap 9. In this state, the absorber body 1
When the piston 6 is moved, for example, to the right in Fig.
2 to the guide hole 43 of the valve member 39, series:, 'y, +
Mounting tube 2 through the aperture recess 17 and slit 16 of Yap 9
After flowing out into the hydraulic oil inlet/outlet portion E, the oil passes through the opening 22 of the mounting tube 21.

従って、このとき油圧アブソーバのピストン6には絞り
部、L;7の大きさに応じた作動油Aの圧力が作用する
Therefore, at this time, the pressure of the hydraulic oil A is applied to the piston 6 of the hydraulic absorber in accordance with the size of the constriction portion L;7.

又、ピストン6を左方トζ移動させると、上記とは逆の
順序をζよって作動油出入部Eの作動油Aがシリンダ4
内へと流動される。
Furthermore, when the piston 6 is moved to the left, the hydraulic oil A in the hydraulic oil inlet/outlet portion E is transferred to the cylinder 4 in the reverse order to the above.
flowed inward.

次に、この状態においてグリップ24を回動操作して、
その位置合わせ片27が取付筒21の指標21bと一致
しない位置をで達すると、バルブ部材39の案内孔43
はシリンダキャップ9の絞り部17とは対向されず、同
絞り部17がバルブ部材390基端面により閉塞される
。従って、シリンダ4内と作動油出入部Eとの間の作動
油Aの移動通路が遮断されて、ピストン6が移動不能と
なり可動側の取付部7がロック状態に保持される。
Next, in this state, rotate the grip 24,
When the positioning piece 27 reaches a position that does not match the mark 21b of the mounting tube 21, the guide hole 43 of the valve member 39
does not face the constricted portion 17 of the cylinder cap 9, and the constricted portion 17 is closed by the base end surface of the valve member 390. Therefore, the movement path of the hydraulic oil A between the inside of the cylinder 4 and the hydraulic oil inlet/outlet portion E is blocked, the piston 6 becomes immovable, and the movable side mounting portion 7 is held in a locked state.

さらに、グリップ24を回動操作して、次の位置合わせ
片27を取付f&J21の指4121bに対して一致さ
せると、バルブ部材39の案内孔43はシリンダキャッ
プ9の次の絞り部17に対向する。
Furthermore, when the grip 24 is rotated to align the next positioning piece 27 with the finger 4121b of the mounting f&J 21, the guide hole 43 of the valve member 39 faces the next constricted portion 17 of the cylinder cap 9. .

従って、案内孔43には前記したものとは異なる大きさ
の絞り部17が連通されるため、その絞り部17の大き
さに応じて作動油Aの流量が制御されて、ピストン6に
作用する油圧力が調整される。
Therefore, since the guide hole 43 is connected with a constriction part 17 having a size different from that described above, the flow rate of the hydraulic oil A is controlled according to the size of the constriction part 17, and acts on the piston 6. Hydraulic pressure is adjusted.

このようにして、グリップの回動操作に伴い、バルブ部
材39の案内孔43に連通されるシリンダキャップ9の
絞り四部17を適宜変更すれば、この発明における油圧
アブソーバのピストン6を作動させるための力を簡単に
調整することができる。しかも、前記したように構成す
れば、バルブ部材39及びグリップ24がピストン6の
移動軸線の周りで回動されるため、第1図からも明らか
なように、アブソーバ本体1と圧力調整装置2とを同一
軸線上に配置することができ、全体をコンパクトに構成
することができる。従って、この油圧アブソーバを各種
装置に装備する際にその取付スペースを小さくすること
ができる。
In this way, by appropriately changing the four orifice portions 17 of the cylinder cap 9 that communicate with the guide hole 43 of the valve member 39 as the grip is rotated, it is possible to operate the piston 6 of the hydraulic absorber according to the present invention. The force can be easily adjusted. Moreover, with the above-described configuration, the valve member 39 and the grip 24 are rotated around the movement axis of the piston 6, so as is clear from FIG. can be arranged on the same axis, and the whole can be constructed compactly. Therefore, when installing this hydraulic absorber in various devices, the installation space can be reduced.

また、循環室42内には作動油Aが流入されて同作動油
Aがバルブ部材39をシリンダキャップ9に対して押圧
するため圧縮ばね44の力は特に強くなくてもよい。
Further, since the hydraulic oil A flows into the circulation chamber 42 and presses the valve member 39 against the cylinder cap 9, the force of the compression spring 44 does not need to be particularly strong.

つづいて、この発明の第2の実施例を第3,4図に従っ
て説明する。
Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

この実施例では第4図に示すようにシリンダキャップ9
の大径部13先端面に、終端47が閉塞され、かつほぼ
円環溝状をなす紋り部17を凹設して、この絞り部17
の開始端48を連通孔46にてスリット16と連通させ
た点において前記第1実施例とは異なる。第5図ンc示
すように、前記絞り部17は開始端48がら終端47に
延びるに従って連続的に深さが浅くなり、バルブ部材3
9の案内孔43が任意の箇所で連通し、この連通箇所に
おける紋り部17の深さによって作動油Aの流量が決定
されるようになっている。ピストンが右方向に移動する
とraiI記紋り部17内に流入された作動油Aは紋り
部17中を連通孔46に向って流動し、シリンダキャッ
プ9のスリット16及び取付筒21の開口部22を経て
、作動油流動部E内に流動する。また、バルブ部拐39
の案内孔43が絞り部17の開始端48と終端47の間
に位置するとき、作動油Aの流動は停止される。
In this embodiment, as shown in FIG.
A constricted part 17 is formed on the distal end surface of the large diameter part 13, the terminal end 47 of which is closed, and which has a substantially annular groove shape.
The second embodiment differs from the first embodiment in that the starting end 48 of the second embodiment is communicated with the slit 16 through a communication hole 46. As shown in FIG.
The guide holes 43 of 9 communicate with each other at arbitrary locations, and the flow rate of the hydraulic oil A is determined by the depth of the ridges 17 at these communicating locations. When the piston moves to the right, the hydraulic oil A that has flowed into the raiI marking part 17 flows through the marking part 17 toward the communication hole 46, and passes through the slit 16 of the cylinder cap 9 and the opening of the mounting tube 21. 22, and flows into the hydraulic fluid flow section E. Also, valve removal 39
When the guide hole 43 is located between the starting end 48 and the ending end 47 of the throttle part 17, the flow of the hydraulic oil A is stopped.

従って、紋り部17の深さによってピストン6に作用す
る油圧力が調節される。この油圧力は絞り部17の全長
にわたって無段階に調ni)可能であるが、本実施例で
は取伺簡21の先端面9円周方向に等角度で離間するそ
れぞれ18個の保持四部21aを設けて、グリップ24
の回動位置を保持可能とし、さらにこれらと対応するよ
うに取付筒21の外周面に18個の指標21bが突設さ
れている。
Therefore, the hydraulic pressure acting on the piston 6 is adjusted depending on the depth of the ridge 17. This hydraulic pressure can be adjusted steplessly over the entire length of the constriction part 17, but in this embodiment, it is possible to adjust the hydraulic pressure steplessly over the entire length of the constriction part 17. Provide grip 24
Further, 18 indicators 21b are protruded from the outer circumferential surface of the mounting tube 21 to correspond to these rotational positions.

発明の効果 以上、詳述したように、この発明は「クレーム1」によ
って、簡単な操作で圧力の調整を容易に行うことができ
るとともに、そのための機構を簡単かつコンパクトに構
成することができるという優れた効果を奏する。
Effects of the Invention As described above in detail, the present invention has the following advantages: According to "Claim 1", pressure can be easily adjusted with simple operations, and the mechanism for this can be easily and compactly constructed. It has excellent effects.

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

第1図はこの発明の第1の実施例を示す一部破断圧面図
、第2図は圧力調整装置の構成を示す拡大断面図、第3
図は第2の実施例を示す一部破断正面図、第4図は第3
図のW−W線における拡大断面図、第5図は絞り部の展
開図である。 ケーシング3、シリンダ4、ピストンロッド、5、ピス
トン6、シリンダキャップ9、挿通孔10、作動油通過
路14、スリット16、絞り部17、取付筒21、開口
部22、バルブ部材39、循環室42、案内孔43、作
動油A、作動油出入部E。
FIG. 1 is a partially broken pressure surface view showing a first embodiment of the present invention, FIG. 2 is an enlarged sectional view showing the configuration of a pressure regulating device, and FIG.
The figure is a partially cutaway front view showing the second embodiment, and Figure 4 is the third embodiment.
FIG. 5 is an enlarged sectional view taken along the line W--W in the figure, and is a developed view of the aperture portion. Casing 3, cylinder 4, piston rod 5, piston 6, cylinder cap 9, insertion hole 10, hydraulic oil passage 14, slit 16, throttle section 17, mounting tube 21, opening 22, valve member 39, circulation chamber 42 , guide hole 43, hydraulic oil A, hydraulic oil inlet/outlet E.

Claims (1)

【特許請求の範囲】 1 ケーシング(3)内にシリンダ(4)を収容し、さ
らにシリンダ(4)内にはピストン(6)を取付けたピ
ストンロッド(5)を往復動可能に配置して、 前記シリンダ(4)の一端部に取付けたシリンダキャッ
プ(9)にはピストンロッド(5)を挿通するための挿
通孔(10)を貫設し、この挿通孔(10)の内周壁と
ピストンロッド(5)外周面との間に作動油通過路(1
4)を形成し、さらに、 前記シリンダキャップ(9)の前側壁に回動可能に取付
けたバルブ部材(39)とシリンダキャップ(9)にて
包囲して、前記作動油通過路(14)に連通し、かつ同
作動油通過路(14)を経て作動油(A)が流入される
循環室(42)を形成するとともに、 前記シリンダキャップ(9)の前側壁にはバルブ部材(
39)の案内孔(43)を介して循環室(42)へと連
通する少なくとも1個の絞り部(17)を設け、さらに
シリンダキャップ(9)の外周面の一部には前記絞り部
(17)と連通するスリット(16)を切欠形成し、 前記作動油通過路(14)、循環室(42)、案内孔(
43)、絞り部(17)、スリット(16)にて作動油
(A)の通路を形成したことを特徴とする油圧機器の圧
力調整装置。 2 前記絞り部(17)はシリンダキャップ(9)の円
周方向に等角度を置いて複数個配置され、かつそれぞれ
の大きさが互いに異なることを特徴とする特許請求の範
囲第1項に記載の油圧機器の圧力調整装置。 3 前記循環室(42)は取付筒(21)内において、
シリンダキャップ(9)とバルブ部材(39)と回動ス
リーブ(31)とによつて包囲された空間であることを
特徴とする特許請求の範囲第1項に記載の油圧機器の圧
力調整装置。 4 前記バルブ部材(39)は同一軸線上に操作用のグ
リップ(24)を連結したものであることを特許請求の
範囲第1項に記載の油圧機器の圧力調整装置。 5 前記グリップ(24)と回動スリーブ(31)との
間には、バルブ部材(39)の案内孔(43)とシリン
ダキャップ(9)の絞り部(17)とを相対向する位置
に保持するように、バルブ部材(39)の位置決め保持
する保持部(21a、28、29)を設けたことを特徴
とする特許請求の範囲第1項に記載の油圧機器の圧力調
整装置。 6 前記絞り部(17)は開始端(48)から終端(4
7)に延びる従つて浅くなる溝状に形成し、開始端(4
8)を連通孔(46)にてスリット(16)と連通した
ことを特徴とする特許請求の範囲第1項に記載の油圧機
器の圧力調整装置。
[Claims] 1. A cylinder (4) is housed in a casing (3), and a piston rod (5) to which a piston (6) is attached is arranged in the cylinder (4) so as to be able to reciprocate, The cylinder cap (9) attached to one end of the cylinder (4) has an insertion hole (10) through which the piston rod (5) is inserted, and the inner peripheral wall of the insertion hole (10) and the piston rod (5) Hydraulic oil passage (1
4), and is further surrounded by a valve member (39) rotatably attached to the front side wall of the cylinder cap (9) and the cylinder cap (9), and is connected to the hydraulic oil passage (14). A circulation chamber (42) is formed in communication with the hydraulic oil (A) through which the hydraulic oil (A) flows through the hydraulic oil passage (14), and a valve member (42) is provided on the front side wall of the cylinder cap (9).
At least one constriction part (17) is provided which communicates with the circulation chamber (42) through the guide hole (43) of the cylinder cap (9), and the constriction part (17) is provided on a part of the outer peripheral surface of the cylinder cap (9). A slit (16) communicating with the hydraulic oil passageway (14), the circulation chamber (42), and the guide hole (
43) A pressure regulating device for hydraulic equipment, characterized in that a passage for hydraulic oil (A) is formed by a constriction portion (17) and a slit (16). 2. According to claim 1, a plurality of the throttle portions (17) are arranged at equal angles in the circumferential direction of the cylinder cap (9), and each size is different from each other. pressure regulator for hydraulic equipment. 3. The circulation chamber (42) is located within the mounting tube (21),
The pressure regulating device for hydraulic equipment according to claim 1, characterized in that the space is surrounded by a cylinder cap (9), a valve member (39), and a rotating sleeve (31). 4. The pressure adjustment device for hydraulic equipment according to claim 1, wherein the valve member (39) has an operating grip (24) connected on the same axis. 5. Between the grip (24) and the rotating sleeve (31), a guide hole (43) of the valve member (39) and a constriction part (17) of the cylinder cap (9) are held in opposing positions. The pressure regulating device for hydraulic equipment according to claim 1, further comprising a holding portion (21a, 28, 29) for positioning and holding the valve member (39). 6 The aperture part (17) extends from the starting end (48) to the ending end (4
The starting end (4) is formed into a groove shape that becomes shallower as it extends toward the starting end (4).
8) communicates with the slit (16) through a communication hole (46).
JP13062784A 1984-06-25 1984-06-25 Pressure regulator for hydraulic machine Granted JPS6110136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13062784A JPS6110136A (en) 1984-06-25 1984-06-25 Pressure regulator for hydraulic machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13062784A JPS6110136A (en) 1984-06-25 1984-06-25 Pressure regulator for hydraulic machine

Publications (2)

Publication Number Publication Date
JPS6110136A true JPS6110136A (en) 1986-01-17
JPH0467053B2 JPH0467053B2 (en) 1992-10-27

Family

ID=15038762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13062784A Granted JPS6110136A (en) 1984-06-25 1984-06-25 Pressure regulator for hydraulic machine

Country Status (1)

Country Link
JP (1) JPS6110136A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63296699A (en) * 1987-03-31 1988-12-02 オーガノジェネシス インコーポレーテッド Test system of tissue equivalent substance
JPS6434359A (en) * 1987-07-30 1989-02-03 Toray Industries Novel high performance medical patch
JPS6434358A (en) * 1987-07-31 1989-02-03 Toray Industries Medical patch material for forming connective tissue
JPS6434360A (en) * 1987-07-31 1989-02-03 Toray Industries Improved hybrid artificial blood vessel
JPH0271750A (en) * 1988-06-02 1990-03-12 Organogenesis Inc Fibrin-collagen tissue corresponding substance and its production and use
JPH0758229B2 (en) * 1988-11-01 1995-06-21 ダイアテック,エル.ピー. Probe assembly for infrared thermometer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814155U (en) * 1971-06-25 1973-02-16
JPS5323915U (en) * 1976-08-06 1978-02-28
JPS5732954U (en) * 1980-07-31 1982-02-20

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814155U (en) * 1971-06-25 1973-02-16
JPS5323915U (en) * 1976-08-06 1978-02-28
JPS5732954U (en) * 1980-07-31 1982-02-20

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63296699A (en) * 1987-03-31 1988-12-02 オーガノジェネシス インコーポレーテッド Test system of tissue equivalent substance
JPS6434359A (en) * 1987-07-30 1989-02-03 Toray Industries Novel high performance medical patch
JPH0459900B2 (en) * 1987-07-30 1992-09-24 Toray Industries
JPS6434358A (en) * 1987-07-31 1989-02-03 Toray Industries Medical patch material for forming connective tissue
JPS6434360A (en) * 1987-07-31 1989-02-03 Toray Industries Improved hybrid artificial blood vessel
JPH0459901B2 (en) * 1987-07-31 1992-09-24 Toray Industries
JPH0459899B2 (en) * 1987-07-31 1992-09-24 Toray Industries
JPH0271750A (en) * 1988-06-02 1990-03-12 Organogenesis Inc Fibrin-collagen tissue corresponding substance and its production and use
JPH0758229B2 (en) * 1988-11-01 1995-06-21 ダイアテック,エル.ピー. Probe assembly for infrared thermometer

Also Published As

Publication number Publication date
JPH0467053B2 (en) 1992-10-27

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