JPH0749167Y2 - Pilot valve - Google Patents
Pilot valveInfo
- Publication number
- JPH0749167Y2 JPH0749167Y2 JP6719090U JP6719090U JPH0749167Y2 JP H0749167 Y2 JPH0749167 Y2 JP H0749167Y2 JP 6719090 U JP6719090 U JP 6719090U JP 6719090 U JP6719090 U JP 6719090U JP H0749167 Y2 JPH0749167 Y2 JP H0749167Y2
- Authority
- JP
- Japan
- Prior art keywords
- pilot valve
- plate
- boot
- lever
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、レバーを前後・左右に揺動することで圧油を
供給するパイロット弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pilot valve that supplies pressure oil by swinging a lever back and forth and left and right.
第９図に示すように、弁本体１内に圧油ポート２を出口
ポート３に連通・遮断するスプール４を摺動自在に４本
設け、そのスプール４と同心状にガイド筒体５を設け、
このガイド筒体５の下部にリテーナ６を配設すると共
に、このリテーナ６を主バネ７でガイド筒体５に押しつ
けてガイド筒体５に沿って摺動するピストン８を上方に
押し上げ保持し、バネ９でスプール４を遮断位置に保持
すると共に、弁本体１の上部にプレート10を取付け、こ
のプレート10の孔11よりユニバーサルジョイント12の基
部12aを弁本体１の上部に螺合して取付け、そのユニバ
ーサルジョイント12の先部12aにレバー取付軸13を設け
ると共に、ディスク14を取付けて、レバー取付軸13に設
けたレバー15を前後・左右に揺動するとディスク14によ
っていずれか一つのピストン８が押し下げられてスプー
ル４が連通位置となり、圧油ポート２の圧油がスプール
４の油孔4aより出口ポート３に供給されるようにしたパ
イロット弁が知られている。As shown in FIG. 9, four spools 4 that slidably connect and block the pressure oil port 2 to the outlet port 3 are provided in the valve body 1 slidably, and a guide cylinder body 5 is provided concentrically with the spool 4. ,
A retainer 6 is disposed below the guide cylinder 5, and the retainer 6 is pressed against the guide cylinder 5 by a main spring 7 to push up and hold a piston 8 which slides along the guide cylinder 5. While holding the spool 4 in the shut-off position by the spring 9, the plate 10 is attached to the upper portion of the valve body 1, and the base portion 12a of the universal joint 12 is screwed and attached to the upper portion of the valve body 1 through the hole 11 of the plate 10. When the lever mounting shaft 13 is provided on the tip portion 12a of the universal joint 12 and the disc 14 is mounted and the lever 15 provided on the lever mounting shaft 13 is swung back and forth and left and right, one of the pistons 8 is driven by the disc 14. A pilot valve is known in which the spool 4 is pushed down to a communicating position so that the pressure oil in the pressure oil port 2 is supplied to the outlet port 3 from the oil hole 4a of the spool 4.
また、第10図に示すようにディスク14に連結したブーツ
16の一端周縁部16aをプレート10にブーツ取付用プレー
ト17で押しつけ保持してブーツ16を取付けたパイロット
弁が知られている。Also, as shown in FIG. 10, the boot connected to the disk 14
There is known a pilot valve in which the boot 16 is attached by holding one end peripheral portion 16a of the 16 against the plate 10 by a boot attachment plate 17.
かかるパイロット弁であると、レバー15をフルストロー
ク操作した時にリテーナ６が弁本体１の段部18に当接し
てレバー15のストロークを規制しているので、ピストン
８、リテーナ６がストッパー機能を持つことになってジ
ョイント12の揺動中心とストッパ部との距離Ｌが短くな
り、ジョイント12の大きな荷重が作用するので大きなジ
ョイントが必要となる。With such a pilot valve, when the lever 15 is fully stroked, the retainer 6 contacts the step portion 18 of the valve body 1 to regulate the stroke of the lever 15, so that the piston 8 and the retainer 6 have a stopper function. As a result, the distance L between the swing center of the joint 12 and the stopper portion becomes short, and a large load on the joint 12 acts, so that a large joint is required.
また、ブーツを備えたパイロット弁にあってはブーツ取
付用プレート17がプレート10と別部品となっているか
ら、部品点数が増えコストアップとなる。Further, in the pilot valve equipped with boots, the boot mounting plate 17 is a separate component from the plate 10, so the number of components increases and the cost increases.
そこで、本考案は前述の課題を解決できるようにしたパ
イロット弁を提供することを目的とする。Then, this invention aims at providing the pilot valve which was able to solve the above-mentioned subject.
（１）プレートとディスクにリング状のストッパー用突
起と受け片を相対向して一体的に設け、その受け片をス
トッパー用突起に当接してレバーのストロークを規制す
るようにしたパイロット弁。(1) A pilot valve in which a ring-shaped stopper projection and a receiving piece are integrally provided on a plate and a disk so as to face each other, and the receiving piece abuts the stopper projection to regulate the stroke of the lever.
これによって、ジョイントに大きな負荷が作用すること
を防止できる。This can prevent a large load from acting on the joint.
（２）前記ストッパー用突起の外周面に環状溝を形成
し、ブーツの一端周縁部を環状溝に嵌め込んで取付ける
ようにしたパイロット弁。(2) A pilot valve in which an annular groove is formed on the outer peripheral surface of the stopper projection, and one end of the boot is fitted into the annular groove for mounting.
これにより、ブーツを取付けるプレートが不要となる。This eliminates the need for a plate to attach the boot.
第１図〜第４図のように、プレート10にリング状のスト
ッパー用突起20を設けると共に、ディスク14にリング状
の受け片21を一体形成して、レバー15をフルストローク
操作するとデイス14の受け片21がストッパー用突起20の
円弧状突部20aに当接してレバー15のストロークを規制
するようにしてある。As shown in FIGS. 1 to 4, when the plate 10 is provided with the ring-shaped stopper projection 20 and the disc 14 is integrally formed with the ring-shaped receiving piece 21, and the lever 15 is operated by a full stroke, the disk 14 is moved. The receiving piece (21) abuts the arc-shaped projection (20a) of the stopper projection (20) to regulate the stroke of the lever (15).
このようにすれば、ストッパ部がピストン８より外側と
なってジョイント12の揺動中心とストッパ部の距離Ｌが
長くなり、ジョイント12に大きな荷重が作用しないの
で、ジョイント12を小型にできる。With this configuration, the stopper portion is located outside the piston 8, and the distance L between the swing center of the joint 12 and the stopper portion is long, and a large load does not act on the joint 12, so that the joint 12 can be downsized.
また、第５図〜第８図に示すように、ディスク14の受け
片21の外周面に環状凹部22を形成すると共に、プレート
10のストッパー用突起20の外周面に環状凹部23を形成
し、ブーツ16の一端周縁部16aと他端周縁部16bを前記環
状凹部23,22に嵌め込んで取付けてある。Further, as shown in FIGS. 5 to 8, an annular recess 22 is formed on the outer peripheral surface of the receiving piece 21 of the disk 14 and the plate is formed.
An annular concave portion 23 is formed on the outer peripheral surface of the stopper projection 20 of 10, and one end peripheral edge portion 16a and the other end peripheral edge portion 16b of the boot 16 are fitted and attached to the annular concave portions 23 and 22.
このようにすれば、ブーツ取付用プレートが不要となっ
て部品点数が増加しない。In this way, the boot mounting plate becomes unnecessary and the number of parts does not increase.
（１）ディスク14に設けた受け片21をプレート10のスト
ッパー用突起20に当接してレバー15のストロークを規制
するようにしたので、ストッパー部とジョイント中心の
距離が長くなってジョイントに大きな荷重が作用しない
から、ジョイントを小型にできる。(1) Since the receiving piece 21 provided on the disk 14 is brought into contact with the stopper projection 20 of the plate 10 to regulate the stroke of the lever 15, the distance between the stopper portion and the center of the joint becomes long, and a large load is applied to the joint. Does not work, so the joint can be made smaller.
（２）ストッパー用突起20の環状溝23にブーツ16の一端
周縁部16aを嵌め込んで取付けたので、ブーツ取付用の
プレートが不要となり、ブーツ16を取付けたにもかかわ
らず部品点数が増加しないからコストアップとならな
い。(2) Since the one end peripheral portion 16a of the boot 16 is fitted into the annular groove 23 of the stopper projection 20 to be mounted, a plate for mounting the boot is not required, and the number of parts does not increase even though the boot 16 is mounted. The cost does not increase.
第１図〜第４図は本考案の第１実施例を示し、第１図、
第２図はパイロット弁の正面図、断面図、第３図、第４
図はプレートの平面図、断面図、第５図〜第８図は本考
案の第２実施例を示し、第５図、第６図はパイロット弁
の正面図、断面図、第７図、第８図はプレートの平面
図、断面図、第９図、第10図は従来例の断面図である。 １は弁本体、２は圧油ポート、３は出口ポート、４はス
プール、８はピストン、10はプレート、12はジョイン
ト、14はディスク、15はレバー、20はストッパー用突
起、21は受け片、23は環状溝。1 to 4 show a first embodiment of the present invention, and FIG.
FIG. 2 is a front view of the pilot valve, a cross-sectional view, FIG. 3, and FIG.
FIG. 5 is a plan view of a plate, a sectional view, FIGS. 5 to 8 show a second embodiment of the present invention, and FIGS. 5 and 6 are front views, sectional views, FIG. 7 and FIG. FIG. 8 is a plan view of a plate, a sectional view, FIGS. 9 and 10 are sectional views of a conventional example. 1 is a valve body, 2 is a pressure oil port, 3 is an outlet port, 4 is a spool, 8 is a piston, 10 is a plate, 12 is a joint, 14 is a disc, 15 is a lever, 20 is a stopper projection, and 21 is a receiving piece. , 23 is an annular groove.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭54−100225（ＪＰ，Ｕ) 実開 昭63−101379（ＪＰ，Ｕ) 実開 平２−140005（ＪＰ，Ｕ) 実開 平３−17387（ＪＰ，Ｕ) 実公 昭61−26693（ＪＰ，Ｙ２) 実公 昭62−20012（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of front page (56) References Showa 54-100225 (JP, U) Showa 63-101379 (JP, U) Showa flat 2-140005 (JP, U) Showa flat 3- 17387 (JP, U) Actual public Sho 61-26693 (JP, Y2) Actual public Sho 62-20012 (JP, Y2)
Claims (2)
を連通・遮断する４本のスプール４及びそのスプール４
を移動する４本のピストン８を設け、弁本体１にジョイ
ント12を介して前後・左右に揺動自在に設けたディスク
14をレバー15で揺動することで前記ピストン８を介して
スプール４を連通位置とするパイロット弁において、 前記弁本体１の上部にリング状のストッパー用突起20を
備えたプレート10を、そのストッパー用突起20がピスト
ン８より外側となるように取付け、前記ディスク14に受
け片21を一体形成したことを特徴とするパイロット弁。1. A valve body 1 having a pressure oil port 2 and an outlet port 3.
Spools 4 for connecting / disconnecting the same and the spools 4
A disc that is provided with four pistons 8 for moving the
In a pilot valve in which 14 is swung by a lever 15 to bring the spool 4 into a communicating position via the piston 8, a plate 10 provided with a ring-shaped stopper projection 20 is provided on an upper portion of the valve body 1, A pilot valve characterized in that the projection 20 is mounted outside the piston 8 and a receiving piece 21 is integrally formed with the disk 14.
溝23を形成して、ブーツ16の一端周縁部16aを環状凹部2
3に嵌め込んで取付けたことを特徴とする請求項１記載
のパイロット弁。2. An annular groove 23 is formed on the outer peripheral surface of the stopper projection 20 so that one end peripheral portion 16a of the boot 16 is annular recess 2.
The pilot valve according to claim 1, wherein the pilot valve is fitted in and attached to the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6719090U JPH0749167Y2 (en) | 1990-06-27 | 1990-06-27 | Pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6719090U JPH0749167Y2 (en) | 1990-06-27 | 1990-06-27 | Pilot valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0427281U JPH0427281U (en) | 1992-03-04 |
| JPH0749167Y2 true JPH0749167Y2 (en) | 1995-11-13 |
Family
ID=31600545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6719090U Expired - Fee Related JPH0749167Y2 (en) | 1990-06-27 | 1990-06-27 | Pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749167Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005853A (en) * | 2001-06-22 | 2003-01-08 | Komatsu Ltd | Monolever operating device |
| WO2010090168A1 (en) * | 2009-02-05 | 2010-08-12 | 日立建機株式会社 | Pilot valve device |
| KR101512956B1 (en) * | 2014-04-23 | 2015-04-17 | 주식회사 상아정공 | combination structure of pilot pressure conversion valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011128719A1 (en) * | 2010-04-12 | 2011-10-20 | Volvo Compact Equipment S A S | Excavator and process for assembling or dissassembling such excavator |
-
1990
- 1990-06-27 JP JP6719090U patent/JPH0749167Y2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005853A (en) * | 2001-06-22 | 2003-01-08 | Komatsu Ltd | Monolever operating device |
| JP4731740B2 (en) * | 2001-06-22 | 2011-07-27 | 株式会社小松製作所 | Mono lever operating device |
| WO2010090168A1 (en) * | 2009-02-05 | 2010-08-12 | 日立建機株式会社 | Pilot valve device |
| JP5449206B2 (en) * | 2009-02-05 | 2014-03-19 | 日立建機株式会社 | Pilot valve device |
| US8991429B2 (en) | 2009-02-05 | 2015-03-31 | Hitachi Construction Machinery Co., Ltd. | Pilot valve assembly |
| KR101512956B1 (en) * | 2014-04-23 | 2015-04-17 | 주식회사 상아정공 | combination structure of pilot pressure conversion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0427281U (en) | 1992-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0749167Y2 (en) | Pilot valve | |
| KR920700372A (en) | Pilot valve | |
| JPH0747659Y2 (en) | Pilot valve | |
| JP2003044154A (en) | Operating lever device | |
| JP4098941B2 (en) | Thin return cylinder device | |
| JP2593184Y2 (en) | Pin slide type vehicle disc brake | |
| JPH0749166Y2 (en) | Hydraulic pilot valve | |
| JPS58106659U (en) | Torque converter lock-up clutch mechanism | |
| JPH0317387U (en) | ||
| JPH02140005U (en) | ||
| JPS581780U (en) | reciprocating compressor | |
| JPH0320563Y2 (en) | ||
| JPS58176169U (en) | Manual switching valve operating device | |
| JPS6129079U (en) | variable pressure valve switch | |
| JPS5816267U (en) | Excavation work vehicle fluid pressure circuit | |
| JPS58146101U (en) | Accumulator for fluid pressure control | |
| JPS58142386U (en) | Input control device for variable displacement pump | |
| JPS60143969U (en) | check valve | |
| JPH0389262U (en) | ||
| JPS5818864U (en) | booster | |
| JPH0476347U (en) | ||
| JPH01133615U (en) | ||
| JPH021477U (en) | ||
| JPS6221482U (en) | ||
| JPS6449673U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |