JPS62108395U - - Google Patents
Info
- Publication number
- JPS62108395U JPS62108395U JP20472485U JP20472485U JPS62108395U JP S62108395 U JPS62108395 U JP S62108395U JP 20472485 U JP20472485 U JP 20472485U JP 20472485 U JP20472485 U JP 20472485U JP S62108395 U JPS62108395 U JP S62108395U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- outriggers
- detector
- detects
- switching 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
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
図面は本考案の実施例を示し、第１図は転倒防
止装置の電気油圧回路図、第２図はアウトリガを
備えた作業車の作業状態を示す側面図、第３図は
アウトリガを接地してブームを格納した状態を示
す作業車の側面図、第４図はアウトリガを接地し
てブームをブームレストから離した状態を示す作
業車の側面図である。
１…車体、２…アウトリガ、４…伸縮ブーム、
７…上部操作装置（操作弁）、８…ブームレスト
、９…ブームが格納状態にあることを検出する検
出器（スイツチ）、１０…アウトリガの接地を検
出する検出器（スイツチ）、１１…ブームの操作
を検出する検出器（スイツチ）、１３…電磁切換
え弁、１４…下部操作装置（操作弁）、１６…ア
ウトリガ操作弁。
The drawings show an embodiment of the present invention; Fig. 1 is an electro-hydraulic circuit diagram of the fall prevention device, Fig. 2 is a side view showing the working state of a work vehicle equipped with outriggers, and Fig. 3 is a diagram showing the working condition of a work vehicle equipped with outriggers. FIG. 4 is a side view of the working vehicle showing a state in which the boom is retracted, and FIG. 4 is a side view of the working vehicle showing a state in which the outriggers are grounded and the boom is separated from the boom rest. 1... Vehicle body, 2... Outrigger, 4... Telescopic boom,
7... Upper operating device (operating valve), 8... Boom rest, 9... Detector (switch) that detects that the boom is in the retracted state, 10... Detector (switch) that detects outrigger grounding, 11... Boom Detector (switch) that detects the operation of , 13... Solenoid switching valve, 14... Lower operating device (operating valve), 16... Outrigger operating valve.
Claims (1)
ブームを備えた作業車において、その切換えによ
りアウトリガあるいはブームに選択的に圧油を供
給する電磁切換え弁と、アウトリガの接地を検出
する検出器と、ブームが格納状態にあることを検
出する検出器と、ブームの操作を検出する検出器
と、アウトリガが接地している状態でブームを操
作したときに前記電磁切換え弁をブーム側に切換
え、ブームが非格納状態になつたときにこれを保
持し、ブームが格納状態に戻つたときに前記電磁
切換え弁をアウトリガ側へ切換える制御回路とを
備えたことを特徴とするアウトリガを備えた作業
車の転倒防止装置。 In a work vehicle equipped with a boom that can be raised and lowered on a body supported by outriggers, an electromagnetic switching valve that selectively supplies pressure oil to the outriggers or the boom by switching the boom, a detector that detects grounding of the outriggers, and a boom A detector that detects that the boom is in the retracted state, a detector that detects the operation of the boom, and a detector that switches the electromagnetic switching valve to the boom side when the boom is operated with the outriggers on the ground, so that the boom is not retracted. A fall prevention device for a work vehicle equipped with an outrigger, comprising a control circuit that holds the boom when the boom is in the retracted state and switches the electromagnetic switching valve to the outrigger side when the boom returns to the retracted state. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204724U JPH0423903Y2 (en) | 1985-12-26 | 1985-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204724U JPH0423903Y2 (en) | 1985-12-26 | 1985-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62108395U true JPS62108395U (en) | 1987-07-10 |
| JPH0423903Y2 JPH0423903Y2 (en) | 1992-06-04 |
Family
ID=31170721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985204724U Expired JPH0423903Y2 (en) | 1985-12-26 | 1985-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423903Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602594A (en) * | 1983-06-17 | 1985-01-08 | 極東開発工業株式会社 | Boom and outrigger operation drive in service car with boom |
-
1985
- 1985-12-26 JP JP1985204724U patent/JPH0423903Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602594A (en) * | 1983-06-17 | 1985-01-08 | 極東開発工業株式会社 | Boom and outrigger operation drive in service car with boom |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0423903Y2 (en) | 1992-06-04 |
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