JPS638300U - - Google Patents
Info
- Publication number
- JPS638300U JPS638300U JP9886486U JP9886486U JPS638300U JP S638300 U JPS638300 U JP S638300U JP 9886486 U JP9886486 U JP 9886486U JP 9886486 U JP9886486 U JP 9886486U JP S638300 U JPS638300 U JP S638300U
- Authority
- JP
- Japan
- Prior art keywords
- lift cylinder
- pipe line
- bottom chamber
- operation valve
- control 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は本考案の一実施例の構成説明図、第２
図は弁機構の構成説明図、第３図は第２図―
線に沿う断面図、第４図、第５図、第６図はマス
ト装置の構成説明図、第７図は制御流量特性図、
第８図は従来のリフトシリンダの操作装置の構成
説明図である。
Ａ，Ｂはリフトシリンダ、Ｃは流量制御弁、Ｄ
は制御弁、３１は操作弁、４０はバイパス通路。
Figure 1 is an explanatory diagram of the configuration of one embodiment of the present invention;
The figure is an explanatory diagram of the configuration of the valve mechanism, and Figure 3 is Figure 2.
A sectional view taken along the line, FIGS. 4, 5, and 6 are diagrams explaining the configuration of the mast device, and FIG. 7 is a control flow characteristic diagram.
FIG. 8 is an explanatory diagram of the configuration of a conventional lift cylinder operating device. A, B are lift cylinders, C is flow control valve, D
3 is a control valve, 31 is an operating valve, and 40 is a bypass passage.
Claims (1)
を連通する管路と操作弁３１とリフトシリンダＢ
のボトム室２５を連通する管路との合流部分に流
量制御弁Ｃを設け、前記リフトシリンダＡのボト
ム室３６をバイパス管路を介して操作弁３１に接
続し、このバイパス通路にリフトシリンダＢのス
トロークエンドにおいてバイパス通路を連通する
制御弁Ｄを設けたことを特徴とするリフトシリン
ダの操作装置。 Operation valve 31 and bottom chamber 36 of lift cylinder A
The pipe line communicating with the operation valve 31 and the lift cylinder B
A flow control valve C is provided at the confluence with the pipe line communicating the bottom chamber 25 of the lift cylinder A, and the bottom chamber 36 of the lift cylinder A is connected to the operation valve 31 via a bypass pipe line, and the lift cylinder B is connected to the bypass passage. An operating device for a lift cylinder, characterized in that a control valve D is provided that communicates with a bypass passage at a stroke end of the lift cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986098864U JPH0344797Y2 (en) | 1986-06-30 | 1986-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986098864U JPH0344797Y2 (en) | 1986-06-30 | 1986-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS638300U true JPS638300U (en) | 1988-01-20 |
| JPH0344797Y2 JPH0344797Y2 (en) | 1991-09-20 |
Family
ID=30967215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986098864U Expired JPH0344797Y2 (en) | 1986-06-30 | 1986-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344797Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5525120A (en) * | 1978-08-11 | 1980-02-22 | Hitachi Ltd | Mark read system |
-
1986
- 1986-06-30 JP JP1986098864U patent/JPH0344797Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5525120A (en) * | 1978-08-11 | 1980-02-22 | Hitachi Ltd | Mark read system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0344797Y2 (en) | 1991-09-20 |