JPH0341796U - - Google Patents
Info
- Publication number
- JPH0341796U JPH0341796U JP10257789U JP10257789U JPH0341796U JP H0341796 U JPH0341796 U JP H0341796U JP 10257789 U JP10257789 U JP 10257789U JP 10257789 U JP10257789 U JP 10257789U JP H0341796 U JPH0341796 U JP H0341796U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- lower boom
- storage
- upper boom
- detects
- 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
- 238000005452 bending Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は本考案に係る格納制御装置を有した横
抱きブームの作動制御用油圧回路図、第２Ａ図お
よび第２Ｂ図は上記横抱きブームを備えた高所作
業車を示す平面図および正面図である。
３……基台、５，６……ブームレスト、１１…
…下ブーム、１３……上ブーム、１４……作業バ
ケツト、１６……起伏シリンダ、１７……屈伸シ
リンダ、２１……格納検出センサ、２２……はさ
み角検出センサ、３２……遮断バルブ。
Fig. 1 is a hydraulic circuit diagram for controlling the operation of a side-holding boom having a retraction control device according to the present invention, and Figs. 2A and 2B are a plan view and a front view of an aerial work vehicle equipped with the above-mentioned side-holding boom. be. 3... Base, 5, 6... Boom rest, 11...
... lower boom, 13 ... upper boom, 14 ... work bucket, 16 ... hoisting cylinder, 17 ... bending cylinder, 21 ... storage detection sensor, 22 ... scissor angle detection sensor, 32 ... cutoff valve.
Claims (1)
この下ブームの側方に並設されるとともにこの下
ブームの先端に前記起伏方向とほぼ同方向に屈伸
自在に取り付けられた上ブームとを有してなる横
抱き屈伸ブームの格納作動を制御する装置であつ
て、 前記下ブームと前記上ブームとのはさみ角を検
出するはさみ角検出器と、 前記下ブームの格納を検出する格納検出器と、 この格納検出器により前記下ブームの格納が検
出されているときにのみ、前記はさみ角が前記所
定角以下となるような前記上ブームの屈伸作動を
許容するコントローラと からなることを特徴とする横抱き屈伸ブームの格
納制御装置。[Scope of claim for utility model registration] A lower boom that is attached to a base so that it can be raised and lowered freely,
A device for controlling the retracting operation of a horizontally held bendable boom, which includes an upper boom that is arranged side by side with the lower boom and is attached to the tip of the lower boom so as to be bendable and extendable in substantially the same direction as the up-and-down direction. a scissor angle detector that detects a scissor angle between the lower boom and the upper boom; a storage detector that detects storage of the lower boom; and a storage detector that detects storage of the lower boom. and a controller that allows bending and extending operation of the upper boom such that the scissor angle becomes equal to or less than the predetermined angle only when the upper boom is in the position of the upper boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10257789U JPH0647909Y2 (en) | 1989-08-31 | 1989-08-31 | Retractable control device for sideways bending and stretching boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10257789U JPH0647909Y2 (en) | 1989-08-31 | 1989-08-31 | Retractable control device for sideways bending and stretching boom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0341796U true JPH0341796U (en) | 1991-04-22 |
| JPH0647909Y2 JPH0647909Y2 (en) | 1994-12-07 |
Family
ID=31651472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10257789U Expired - Lifetime JPH0647909Y2 (en) | 1989-08-31 | 1989-08-31 | Retractable control device for sideways bending and stretching boom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647909Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040588A (en) * | 2001-07-27 | 2003-02-13 | Aichi Corp | Vehicle for high lift work |
-
1989
- 1989-08-31 JP JP10257789U patent/JPH0647909Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040588A (en) * | 2001-07-27 | 2003-02-13 | Aichi Corp | Vehicle for high lift work |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0647909Y2 (en) | 1994-12-07 |
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