JPS649997U - - Google Patents
Info
- Publication number
- JPS649997U JPS649997U JP10360487U JP10360487U JPS649997U JP S649997 U JPS649997 U JP S649997U JP 10360487 U JP10360487 U JP 10360487U JP 10360487 U JP10360487 U JP 10360487U JP S649997 U JPS649997 U JP S649997U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- hydraulic cylinder
- port
- guide bar
- movably inserted
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Actuator (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は本考案の一実施例に係る油圧シリンダ
の縦断正面図、第２図は従来の油圧シリンダとそ
の回路図である。
１８……シリンダチユーブ、１９……ピストン
、２０……ピストンロツド、２１……圧力室、２
５……ガイドバー、２６……係止部、３１……ス
プール、３８……ポート。
FIG. 1 is a longitudinal sectional front view of a hydraulic cylinder according to an embodiment of the present invention, and FIG. 2 is a conventional hydraulic cylinder and its circuit diagram. 18... Cylinder tube, 19... Piston, 20... Piston rod, 21... Pressure chamber, 2
5... Guide bar, 26... Locking portion, 31... Spool, 38... Port.
Claims (1)
ストンロツドが移動自在に挿入され、ピストンの
下部に区画した圧力室にポートを介して圧油が給
排される油圧シリンダに於て、ピストンにガイド
バーが移動自在に挿入され、ガイドバーの上部に
はピストン端面と対向する係止部が設けられ、ガ
イドバーの下部には前記ポートを開閉するスプー
ルが移動自在に挿入されている油圧シリンダ。 (2) ピストンロツドを中空に形成し、ピストン
の中央を貫通するガイドバーがピストンロツド内
に移動自在に挿入されている実用新案登録請求の
範囲第１項記載の油圧シリンダ。 (3) スプールが円筒状に成形され、当該スプー
ルはスプリングを介して常時下方に付勢されてい
る実用新案登録請求の範囲第１項記載の油圧シリ
ンダ。 (4) ポートは供給ポートと排出ポートに分岐さ
れ、供給ポートがスプールで開閉され、排出ポー
トの途中にチエツク弁が開閉自在に設けられてい
る実用新案登録請求の範囲第１項記載の油圧シリ
ンダ。[Scope of Claim for Utility Model Registration] (1) A hydraulic cylinder in which a piston rod is movably inserted into a cylinder tube via a piston, and pressure oil is supplied and discharged through a port to a pressure chamber defined at the bottom of the piston. A guide bar is movably inserted into the piston, a locking portion facing an end surface of the piston is provided in the upper part of the guide bar, and a spool for opening and closing the port is movably inserted in the lower part of the guide bar. Hydraulic cylinder. (2) The hydraulic cylinder according to claim 1, wherein the piston rod is formed hollow, and a guide bar passing through the center of the piston is movably inserted into the piston rod. (3) The hydraulic cylinder according to claim 1, wherein the spool is formed into a cylindrical shape and is constantly urged downward via a spring. (4) The hydraulic cylinder according to claim 1, wherein the port is branched into a supply port and a discharge port, the supply port is opened and closed by a spool, and a check valve is provided in the middle of the discharge port so as to be openable and closable. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10360487U JPH0540079Y2 (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10360487U JPH0540079Y2 (en) | 1987-07-06 | 1987-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS649997U true JPS649997U (en) | 1989-01-19 |
| JPH0540079Y2 JPH0540079Y2 (en) | 1993-10-12 |
Family
ID=31334589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10360487U Expired - Lifetime JPH0540079Y2 (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540079Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318898A (en) * | 1989-05-31 | 1991-01-28 | Manuf Jaeger Le Coultre Sa | Device with vibratile member for generating sound of clock |
-
1987
- 1987-07-06 JP JP10360487U patent/JPH0540079Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318898A (en) * | 1989-05-31 | 1991-01-28 | Manuf Jaeger Le Coultre Sa | Device with vibratile member for generating sound of clock |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0540079Y2 (en) | 1993-10-12 |