JPH01106500U - - Google Patents
Info
- Publication number
- JPH01106500U JPH01106500U JP20117287U JP20117287U JPH01106500U JP H01106500 U JPH01106500 U JP H01106500U JP 20117287 U JP20117287 U JP 20117287U JP 20117287 U JP20117287 U JP 20117287U JP H01106500 U JPH01106500 U JP H01106500U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- boom
- electromagnetic shut
- cylinder
- emergency stop
- 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
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は本考案に係る高所作業車の安全装置を
装備した作業車の一例を示す斜視図、第２図は安
全装置を構成する油圧回路図である。
１…作業車、２…ターンテーブル、３…ブーム
、４…起伏シリンダー、５…伸縮シリンダー、６
…バケツト、７…油圧ポンプ、８…緊急停止バル
ブ（本実施例では三位置バルブを採用）、８ａ…
操作杆、９…起伏操作バルブ（同じく本実施例で
は三位置バルブを採用）、１０…電磁シヤツトオ
フバルブ、１０ａ…リミツトスイツチ、１１…ホ
ールデイングバルブ、１２…姿勢安全補償回路。
FIG. 1 is a perspective view showing an example of a working vehicle equipped with a safety device for a high-altitude working vehicle according to the present invention, and FIG. 2 is a hydraulic circuit diagram configuring the safety device. 1... Work vehicle, 2... Turntable, 3... Boom, 4... Lifting cylinder, 5... Telescopic cylinder, 6
...Bucket, 7...Hydraulic pump, 8...Emergency stop valve (a three-position valve is adopted in this embodiment), 8a...
Operating rod, 9... Lifting operation valve (also a three-position valve is adopted in this embodiment), 10... Electromagnetic shut-off valve, 10a... Limit switch, 11... Holding valve, 12... Posture safety compensation circuit.
Claims (1)
し、起伏シリンダー、伸縮シリンダーにより所定
角度起伏すると共に所定長伸長可能と成つたブー
ムを装備した高所作業車に於いて、前記起伏シリ
ンダーあるいは伸縮シリンダーのボトム側油圧回
路にホールデイングバルブ（ＨＯＶ）と電磁シヤ
ツトオフバルブを介在装備し、該電磁シヤツトオ
フバルブの開閉操作を緊急停止バルブに連動させ
てコントロールするようにしたことを特徴とする
高所作業車の安全装置。 In an aerial work vehicle equipped with a boom whose base is pivotally supported on a turntable mounted on the chassis, the boom can be raised and lowered by a predetermined angle and extended by a predetermined length by means of an undulating cylinder or a telescoping cylinder. A holding valve (HOV) and an electromagnetic shut-off valve are interposed in the bottom hydraulic circuit of the high place, and the opening and closing operations of the electromagnetic shut-off valve are controlled in conjunction with an emergency stop valve Safety equipment for work vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20117287U JPH061594Y2 (en) | 1987-12-29 | 1987-12-29 | Safety equipment for aerial work vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20117287U JPH061594Y2 (en) | 1987-12-29 | 1987-12-29 | Safety equipment for aerial work vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01106500U true JPH01106500U (en) | 1989-07-18 |
| JPH061594Y2 JPH061594Y2 (en) | 1994-01-12 |
Family
ID=31491546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20117287U Expired - Lifetime JPH061594Y2 (en) | 1987-12-29 | 1987-12-29 | Safety equipment for aerial work vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH061594Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11472684B2 (en) | 2020-03-06 | 2022-10-18 | Kabushiki Kaisha Aichi Corporation | Safety device of vehicle with aerial work platform |
-
1987
- 1987-12-29 JP JP20117287U patent/JPH061594Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11472684B2 (en) | 2020-03-06 | 2022-10-18 | Kabushiki Kaisha Aichi Corporation | Safety device of vehicle with aerial work platform |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH061594Y2 (en) | 1994-01-12 |
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