JPS62116099U - - Google Patents
Info
- Publication number
- JPS62116099U JPS62116099U JP346986U JP346986U JPS62116099U JP S62116099 U JPS62116099 U JP S62116099U JP 346986 U JP346986 U JP 346986U JP 346986 U JP346986 U JP 346986U JP S62116099 U JPS62116099 U JP S62116099U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- limit
- switch
- overturning moment
- sub
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- 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
止装置の構成を示す回路図、第２図は高所作業車
の作業状態を示す側面図である。
４……伸縮ブーム、７……作業台、８……サブ
ブーム、１０……規制信号発生装置、１２……限
界スイツチ、１３……限界予備スイツチ、２５，
２６，２９……シヤツトオフ弁。
The drawings show an embodiment of the present invention, and FIG. 1 is a circuit diagram showing the structure of the fall prevention device, and FIG. 2 is a side view showing the working state of the aerial work vehicle. 4...Telescopic boom, 7...Working table, 8...Sub boom, 10...Restriction signal generator, 12...Limit switch, 13...Limit reserve switch, 25,
26, 29...Shutoff valve.
Claims (1)
振自在に備えた高所作業車の転倒防止装置におい
て、ブームに作用する転倒モーメントが限界値に
達すると作動する限界スイツチと、限界値よりも
手前で作動する限界予備スイツチとを備え、限界
予備スイツチが作動したとき転倒モーメントが増
加する方向へのブームの作動を不能とし、限界ス
イツチが作動したとき転倒モーメントが増加する
方向へのブームの作動に加えて作業台あるいはサ
ブブームの首振作動を不能とすることを特徴とす
る高所作業車の転倒防止装置。 A fall prevention device for an aerial work vehicle that is equipped with a work platform or sub-boom that can swing freely at the tip of the boom has a limit switch that activates when the overturning moment acting on the boom reaches a limit value, and a limit switch that activates before the limit value. and a limit reserve switch that disables operation of the boom in a direction in which the overturning moment increases when the limit reserve switch is activated, and in addition to operation of the boom in a direction in which the overturning moment increases when the limit reserve switch is activated. A fall prevention device for an aerial work vehicle, characterized by disabling the swinging operation of a work platform or sub-boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP346986U JPH0242716Y2 (en) | 1986-01-14 | 1986-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP346986U JPH0242716Y2 (en) | 1986-01-14 | 1986-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62116099U true JPS62116099U (en) | 1987-07-23 |
| JPH0242716Y2 JPH0242716Y2 (en) | 1990-11-14 |
Family
ID=30783253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP346986U Expired JPH0242716Y2 (en) | 1986-01-14 | 1986-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0242716Y2 (en) |
-
1986
- 1986-01-14 JP JP346986U patent/JPH0242716Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0242716Y2 (en) | 1990-11-14 |