JPS6236835U - - Google Patents
Info
- Publication number
- JPS6236835U JPS6236835U JP12761585U JP12761585U JPS6236835U JP S6236835 U JPS6236835 U JP S6236835U JP 12761585 U JP12761585 U JP 12761585U JP 12761585 U JP12761585 U JP 12761585U JP S6236835 U JPS6236835 U JP S6236835U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- loading
- link mechanism
- opening area
- 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 1
Landscapes
- 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図は第１図の部拡大図、第４図は第３図
の左側面図、第５図は流路全開時のブレーキ弁の
拡大縦断面図、第６図は流路全閉時のブレーキ弁
の拡大縦断面図である。
１…車体、２…ブラケツト、３…荷受台、４…
平行リンク機構、５…油圧シリンダ、１９…油圧
ポンプ、２３…ブレーキ弁、２８…弁函、３０…
弁体、３２…ばね、３８…第１流通口、４３…第
２流通口、５４…押圧部材としてのボルト。
The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional side view of the main part, FIG. 2 is a hydraulic control circuit diagram, FIG. 3 is an enlarged view of a portion of FIG. 1, and FIG. 3 is a left side view, FIG. 5 is an enlarged longitudinal sectional view of the brake valve when the flow path is fully open, and FIG. 6 is an enlarged longitudinal sectional view of the brake valve when the flow path is fully closed. 1... Vehicle body, 2... Bracket, 3... Loading platform, 4...
Parallel link mechanism, 5... Hydraulic cylinder, 19... Hydraulic pump, 23... Brake valve, 28... Valve box, 30...
Valve body, 32... Spring, 38... First flow port, 43... Second flow port, 54... Bolt as a pressing member.
Claims (1)
行リンク機構を介して連結され、該平行リンク機
構には、油圧ポンプに接続された油圧シリンダが
連結される荷役車両の荷受台昇降装置において、
前記油圧ポンプおよび油圧シリンダ間には、油圧
ポンプに連なる第１流通口および油圧シリンダに
連なる第２流通口を備える弁函と、第１および第
２流通口間を結ぶ流路の開口面積を制御すべく前
記弁函内に摺動自在に嵌挿される弁体と、前記開
口面積を大とする方向に弁体を付勢すべく弁函お
よび弁体間に縮設されるばねとからなるブレーキ
弁が介装され、前記平行リンク機構には、荷受台
が最上方付近にあるときに弁体に当接して前記開
口面積が小となる方向に押圧すべく、弁体に当接
可能な押圧部材が設けられることを特徴とする荷
役車両の荷受台昇降装置。 A loading platform elevating device for a cargo handling vehicle in which a bracket fixed to a vehicle body and a loading platform are connected via a parallel link mechanism, and a hydraulic cylinder connected to a hydraulic pump is connected to the parallel link mechanism.
A valve box is provided between the hydraulic pump and the hydraulic cylinder and includes a first flow port connected to the hydraulic pump and a second flow port connected to the hydraulic cylinder, and an opening area of a flow path connecting the first and second flow ports is controlled. A brake consisting of a valve body that is slidably inserted into the valve case, and a spring that is compressed between the valve case and the valve body to bias the valve body in a direction that increases the opening area. A valve is interposed, and the parallel link mechanism has a pressing force that can come into contact with the valve body so as to come into contact with the valve body and press in a direction where the opening area becomes smaller when the cargo receiving platform is near the uppermost position. A loading/unloading platform elevating device for a loading/unloading vehicle, characterized in that a member is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12761585U JPS6236835U (en) | 1985-08-21 | 1985-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12761585U JPS6236835U (en) | 1985-08-21 | 1985-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6236835U true JPS6236835U (en) | 1987-03-04 |
Family
ID=31022535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12761585U Pending JPS6236835U (en) | 1985-08-21 | 1985-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6236835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202667A (en) * | 2008-02-26 | 2009-09-10 | Shin Meiwa Ind Co Ltd | Storage type cargo receiving platform elevating device |
| JP2013100109A (en) * | 2013-03-01 | 2013-05-23 | Shinmaywa Industries Ltd | Retractable rear body hoist unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351451U (en) * | 1976-10-05 | 1978-05-01 |
-
1985
- 1985-08-21 JP JP12761585U patent/JPS6236835U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351451U (en) * | 1976-10-05 | 1978-05-01 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202667A (en) * | 2008-02-26 | 2009-09-10 | Shin Meiwa Ind Co Ltd | Storage type cargo receiving platform elevating device |
| JP2013100109A (en) * | 2013-03-01 | 2013-05-23 | Shinmaywa Industries Ltd | Retractable rear body hoist unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0268203U (en) | ||
| JPS6236836U (en) | ||
| JPS6279632U (en) | ||
| JPS6258390U (en) | ||
| JPS598999U (en) | Stopper device for cargo handling switching valves in industrial vehicles | |
| JPS6065167U (en) | Vehicle runaway prevention device | |
| JPH0371940U (en) | ||
| JPS6277040U (en) | ||
| JPH03108546U (en) | ||
| JPH0231282U (en) | ||
| JPS6136457U (en) | dump truck | |
| JPS5879459U (en) | Vehicle anti-skid device | |
| JPS639071U (en) | ||
| JPS58136820U (en) | Freight vehicle side frame opening/closing device | |
| JPS5971298U (en) | Control device for cargo handling vehicles | |
| JPS6156129U (en) | ||
| JPS58146735U (en) | Vehicle bed lift device | |
| JPS59179118U (en) | Lift-type cargo vehicle with opening/closing cargo platform roof | |
| JPS58161997U (en) | Lift car transport object fall prevention device | |
| JPS6365535U (en) | ||
| JPS6429073U (en) | ||
| JPS60186217U (en) | Electronically controlled suspension device | |
| JPS648440U (en) | ||
| JPS6090036U (en) | Dump vehicle cargo box lowering prevention device | |
| JPS6154910U (en) |