JPS63141881U - - Google Patents
Info
- Publication number
- JPS63141881U JPS63141881U JP1987034284U JP3428487U JPS63141881U JP S63141881 U JPS63141881 U JP S63141881U JP 1987034284 U JP1987034284 U JP 1987034284U JP 3428487 U JP3428487 U JP 3428487U JP S63141881 U JPS63141881 U JP S63141881U
- Authority
- JP
- Japan
- Prior art keywords
- spool valve
- regulator
- regulator piston
- arm
- variable pump
- 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
Links
- 230000007935 neutral effect Effects 0.000 claims description 6
Landscapes
- Servomotors (AREA)
- Control Of Fluid Gearings (AREA)
Description
第１図は本考案の実施例を示す断面図、第２図
はその一部を示す断面図である。
２……レギユレータピストン、３，４……シリ
ンダ室、５……可変ポンプ、６……スプールバル
ブ、８……アーム、１１……操作レバー、１２Ａ
，１２Ｂ……当接部、２８……ロツド、３０……
ストツパ、３１……スプリングホルダ、３２……
スリーブ、３４……キヤツプ、３５……中立スプ
リング。
FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a part thereof. 2...Regulator piston, 3, 4...Cylinder chamber, 5...Variable pump, 6...Spool valve, 8...Arm, 11...Operation lever, 12A
, 12B... contact portion, 28... rod, 30...
Stopper, 31... Spring holder, 32...
Sleeve, 34...cap, 35...neutral spring.
補正 昭６２．７．３
実用新案登録請求の範囲を次のように補正する
。Amendment July 3, 1986 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
ポンプの斜板に連動するレギユレータピストン
にスプールバルブを摺動自在に設け、レギユレー
タピストンの左右のシリンダ室にスプールバルブ
の切換量に応じて圧油を送り込みレギユレータピ
ストンを移動させるようにした可変ポンプのサー
ボレギユレータにおいて、操作レバーに連動して
スプールバルブを駆動するアームを設け、かつこ
のスプールバルブに形成した左右の環状溝を介し
て前記シリンダ室に連通するレギユレータピスト
ンに設けたオリフイス付の各作動通路を高圧また
は低圧通路と切換連通すると共に、この環状溝の
溝幅をバルブ中立点からの最大切換ストローク量
よりも大きく設定し、前記レギユレータピストン
にアームが所定量以上回動したときに突当たる当
接部を設ける一方、スプールバルブの端部に該ス
プールバルブを中立状態に保持する中立スプリン
グを調整自在に連結したことを特徴とする可変ポ
ンプのサーボレギユレータ。[Claim for Utility Model Registration] A spool valve is slidably provided on the regulator piston that is linked to the swash plate of the pump, and pressure oil is supplied to the left and right cylinder chambers of the regulator piston according to the switching amount of the spool valve. A servo regulator for a variable pump that moves a feed regulator piston is provided with an arm that drives a spool valve in conjunction with an operating lever , and the spool valve is provided with an arm that drives the spool valve through left and right annular grooves formed in the spool valve. Each operating passage with an orifice provided in the regulator piston that communicates with the cylinder chamber is selectively communicated with a high pressure or low pressure passage, and the groove width of this annular groove is set to be larger than the maximum switching stroke amount from the valve neutral point. , the regulator piston is provided with an abutting portion that abuts when the arm rotates by more than a predetermined amount, and a neutral spring that maintains the spool valve in a neutral state is adjustably connected to the end of the spool valve. A variable pump servo regulator featuring:
Claims (1)
にスプールバルブを摺動自在に設け、レギユレー
タピストンの左右のシリンダ室にスプールバルブ
の切換量に応じて圧油を送り込みレギユレータピ
ストンを移動させるようにした可変ポンプのサー
ボレギユレータにおいて、操作レバーに連動して
スプールバルブを駆動するアームを設け、かつ前
記レギユレータピストンにアームが所定量以上回
動したときに突当たる当接部を設ける一方、スプ
ールバルブの端部に該スプールバルブを中立状態
に保持する中立スプリングを調整自在に連結した
ことを特徴とする可変ポンプのサーボレギユレー
タ。 A spool valve is slidably installed on the regulator piston that is linked to the swash plate of the pump, and pressure oil is fed into the left and right cylinder chambers of the regulator piston according to the switching amount of the spool valve to move the regulator piston. In the servo regulator for a variable pump, an arm is provided to drive the spool valve in conjunction with an operating lever, and an abutting portion that abuts against the regulator piston when the arm rotates by a predetermined amount or more is provided. 1. A servo regulator for a variable pump, characterized in that a neutral spring for holding the spool valve in a neutral state is adjustably connected to an end of the spool valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987034284U JPH0511356Y2 (en) | 1987-03-09 | 1987-03-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987034284U JPH0511356Y2 (en) | 1987-03-09 | 1987-03-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63141881U true JPS63141881U (en) | 1988-09-19 |
| JPH0511356Y2 JPH0511356Y2 (en) | 1993-03-19 |
Family
ID=30842684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987034284U Expired - Lifetime JPH0511356Y2 (en) | 1987-03-09 | 1987-03-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0511356Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006242335A (en) * | 2005-03-04 | 2006-09-14 | Yanmar Co Ltd | Operating mechanism of continuously variable transmission |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS446589Y1 (en) * | 1965-07-26 | 1969-03-11 | ||
| JPS507412U (en) * | 1973-05-19 | 1975-01-25 |
-
1987
- 1987-03-09 JP JP1987034284U patent/JPH0511356Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS446589Y1 (en) * | 1965-07-26 | 1969-03-11 | ||
| JPS507412U (en) * | 1973-05-19 | 1975-01-25 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006242335A (en) * | 2005-03-04 | 2006-09-14 | Yanmar Co Ltd | Operating mechanism of continuously variable transmission |
| JP4585336B2 (en) * | 2005-03-04 | 2010-11-24 | ヤンマー株式会社 | Operation mechanism of hydraulic continuously variable transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0511356Y2 (en) | 1993-03-19 |
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