JPS6279632U - - Google Patents
Info
- Publication number
- JPS6279632U JPS6279632U JP17163985U JP17163985U JPS6279632U JP S6279632 U JPS6279632 U JP S6279632U JP 17163985 U JP17163985 U JP 17163985U JP 17163985 U JP17163985 U JP 17163985U JP S6279632 U JPS6279632 U JP S6279632U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- slide ring
- barrel
- opening area
- flow port
- 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.)
- Pending
Links
- 230000003028 elevating effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面は本考案の一実施例を示すものであり、第
１図は要部縦断側面図、第２図は油圧制御回路図
、第３図・第４図は油圧シリンダの要部の作動状
態図、第５図はスライドリングの平面図、第６図
は他の実施例でピストンロツドの連通孔を示す詳
細図である。
１は車体、３は荷受台、４は平行リンク機構、
５は油圧シリンダ、６はピストンロツド、１９は
油圧ポンプ、２６は流通口、２７はバレル、２８
は閉鎖部材、３０はスライドリング、３１はバネ
である。
The drawings show one embodiment of the present invention, and Fig. 1 is a vertical sectional side view of the main parts, Fig. 2 is a hydraulic control circuit diagram, and Figs. 3 and 4 are operating state diagrams of the main parts of the hydraulic cylinder. , FIG. 5 is a plan view of the slide ring, and FIG. 6 is a detailed view showing the communication hole of the piston rod in another embodiment. 1 is the vehicle body, 3 is the loading platform, 4 is the parallel link mechanism,
5 is a hydraulic cylinder, 6 is a piston rod, 19 is a hydraulic pump, 26 is a flow port, 27 is a barrel, 28
3 is a closing member, 30 is a slide ring, and 31 is a spring.
Claims (1)
油圧ポンプに接続された油圧シリンダを伸長作動
させることにより、荷受台を上昇させる荷役車両
の荷受台昇降装置において、前記油圧シリンダは
油圧ポンプに連なる流通口を備えるバレルと、こ
のバレルの一端を閉鎖する閉鎖部材と、前記バレ
ル内に摺動自在に嵌挿されたピストンロツドと前
記流通口の開口面積を制御すべくバレル内に嵌挿
されたスライドリングと、前記流通口の開口面積
を大とする方向に前記スライドリングを付勢すべ
く閉鎖部材とスライドリング間に縮設されたバネ
とより構成され、前記スライドリングは前記油圧
シリンダが最伸長付近にあるときに前記開口面積
が小となる方向にピストンロツドにて押圧されて
なる荷役車両の荷受台昇降装置。 In a loading platform elevating device for a cargo handling vehicle that raises a loading platform by extending and operating a hydraulic cylinder connected to a hydraulic pump through a parallel link mechanism provided on a bracket on the vehicle body side, the hydraulic cylinder is connected to a flow port connected to the hydraulic pump. a closing member that closes one end of the barrel; a piston rod that is slidably inserted into the barrel; and a slide ring that is inserted into the barrel to control the opening area of the flow port. , a spring compressed between the closing member and the slide ring to bias the slide ring in a direction that increases the opening area of the flow port, and the slide ring is configured to press the hydraulic cylinder when the hydraulic cylinder is near its maximum extension. A loading/unloading platform elevating device for a cargo handling vehicle that is pressed by a piston rod in a direction in which the opening area becomes smaller at a certain time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17163985U JPS6279632U (en) | 1985-11-07 | 1985-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17163985U JPS6279632U (en) | 1985-11-07 | 1985-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6279632U true JPS6279632U (en) | 1987-05-21 |
Family
ID=31107450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17163985U Pending JPS6279632U (en) | 1985-11-07 | 1985-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6279632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0233746U (en) * | 1988-08-30 | 1990-03-02 |
-
1985
- 1985-11-07 JP JP17163985U patent/JPS6279632U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0233746U (en) * | 1988-08-30 | 1990-03-02 |
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