JPH0219911U - - Google Patents
Info
- Publication number
- JPH0219911U JPH0219911U JP9333788U JP9333788U JPH0219911U JP H0219911 U JPH0219911 U JP H0219911U JP 9333788 U JP9333788 U JP 9333788U JP 9333788 U JP9333788 U JP 9333788U JP H0219911 U JPH0219911 U JP H0219911U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- piston rod
- valves
- push rod
- 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
Landscapes
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Description
第１図は本考案の実施例を示すチルトシリンダ
の縦断面図、第２図は同じく切欠の形状を示すプ
ツシユロツドの拡大した横断面図、第３図はチル
トシリンダの作動構造を示す油圧回路図、第４図
は流路の絞り手段について別の構成を示すピスト
ン要部を拡大した縦断面図である。また、第５図
は従来例を示すチルトシリンダの縦断面図、第６
図は同じく油圧回路図である。
１…シリンダ本体、２…ピストン、３…ピスト
ンロツド、４…中空部、５，７…油室、６，８…
バルブ、９…プツシユロツド、１０…操作レバー
、１２…切欠、１３…孔部、１４…通孔、１５…
アキユームレータ。
Fig. 1 is a vertical cross-sectional view of a tilt cylinder showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of the push rod showing the shape of the notch, and Fig. 3 is a hydraulic circuit diagram showing the operating structure of the tilt cylinder. , FIG. 4 is an enlarged vertical cross-sectional view of the main part of the piston showing another configuration of the flow passage restricting means. 5 is a vertical sectional view of a tilt cylinder showing a conventional example, and FIG.
The figure is also a hydraulic circuit diagram. DESCRIPTION OF SYMBOLS 1... Cylinder body, 2... Piston, 3... Piston rod, 4... Hollow part, 5, 7... Oil chamber, 6, 8...
Valve, 9... Push rod, 10... Operating lever, 12... Notch, 13... Hole, 14... Through hole, 15...
Accumulator.
Claims (1)
由に収装したピストンに、中空のピストンロツド
を結合してシリンダ本体から摺動自由に突出させ
、ピストンの両側に画成された各油室をピストン
ロツドの中空部を介して油溜室に接続する常閉の
バルブをそれぞれピストンに設け、外部からの操
作により変位してこれらのバルブを強制的に開弁
するプツシユロツドをピストンロツドを縦貫して
設けたシリンダ装置において、これらのバルブと
前記中空部との間の流路を変位位置に応じて絞る
手段をプツシユロツドに備えたことを特徴とする
シリンダ装置。 A hollow piston rod is connected to a piston that is slidably housed inside a cylinder body filled with hydraulic oil and is slidably protruded from the cylinder body, and each oil chamber defined on both sides of the piston is connected to the piston rod. A cylinder in which each piston is equipped with a normally closed valve that connects to the oil reservoir chamber through a hollow part, and a push rod is installed vertically through the piston rod to forcibly open these valves when displaced by external operation. A cylinder device, characterized in that the push rod is equipped with means for narrowing the flow path between these valves and the hollow portion according to the displacement position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9333788U JPH073069Y2 (en) | 1988-07-14 | 1988-07-14 | Cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9333788U JPH073069Y2 (en) | 1988-07-14 | 1988-07-14 | Cylinder device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0219911U true JPH0219911U (en) | 1990-02-09 |
| JPH073069Y2 JPH073069Y2 (en) | 1995-01-30 |
Family
ID=31317790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9333788U Expired - Lifetime JPH073069Y2 (en) | 1988-07-14 | 1988-07-14 | Cylinder device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073069Y2 (en) |
-
1988
- 1988-07-14 JP JP9333788U patent/JPH073069Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH073069Y2 (en) | 1995-01-30 |