JPH0458599U - - Google Patents
Info
- Publication number
- JPH0458599U JPH0458599U JP10151290U JP10151290U JPH0458599U JP H0458599 U JPH0458599 U JP H0458599U JP 10151290 U JP10151290 U JP 10151290U JP 10151290 U JP10151290 U JP 10151290U JP H0458599 U JPH0458599 U JP H0458599U
- Authority
- JP
- Japan
- Prior art keywords
- crane arm
- lifting
- rope
- retracted state
- fully retracted
- 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
- 238000004804 winding Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は、本考案に係る吊り上げ力切換え装置
を備えた高所作業車の側面図、第２図は、上記吊
り上げ力切換え装置の構成を示した油圧・電気回
路図、第３図は、上記吊り上げ力切換え装置の作
動を示した図表である。
４……ブーム、１０……キヤビン、１５……マ
ニピユレータ、２０……吊り上げ装置、２３……
クレーンアーム、２４……ウインチ、２７……ア
ーム伸縮シリンダ、２８ａ……ロープ、２８ｂ…
…フツク、２９……ウインチモータ、４１……全
縮状態検出器、４２……張力検出器、４３ａ……
巻取り力切換え部、４３ｂ……伸長規制部、４３
ｃ……コントローラ。
FIG. 1 is a side view of an aerial work vehicle equipped with a lifting force switching device according to the present invention, FIG. 2 is a hydraulic/electrical circuit diagram showing the configuration of the lifting force switching device, and FIG. 3 is a It is a chart showing the operation of the above-mentioned lifting force switching device. 4... Boom, 10... Cabin, 15... Manipulator, 20... Lifting device, 23...
Crane arm, 24... winch, 27... arm telescopic cylinder, 28a... rope, 28b...
... Hook, 29 ... Winch motor, 41 ... Fully contracted state detector, 42 ... Tension detector, 43a ...
Winding force switching section, 43b... Extension regulating section, 43
c...controller.
Claims (1)
なクレーンアームおよびこのクレーンアームの先
端を介して垂下され、先端部にフツクを取り付け
たロープを巻取るウインチからなり、対象物の前
記作業台の側方等への吊り上げを行う吊り上げ装
置とを有してなる吊り上げ装置を備えた高所作業
車の吊り上げ力切換え装置であつて、 前記クレーンアームが全縮状態にあることを検
出する全縮状態検出器と、 前記ロープに前記対象物の吊り上げによる張力
が作用していることを検出する張力検出器と、 前記全縮状態検出器からの検出信号が未入力の
ときは前記ウインチにおける前記ロープの巻取り
力を第１巻取り力に設定するとともに前記クレー
ンアームの伸縮作動を許容し、前記全縮状態検出
器および前記張力検出器双方からの検出信号が入
力されたときは前記巻取り力を前記第１巻取り力
より大きな第２巻取り力に設定するととも前記ク
レーンアームの伸長作動を規制する巻取り力・ク
レーンアーム制御手段とからなることを特徴とす
る吊り上げ装置を備えた高所作業車の吊り上げ力
切換え装置。[Scope of Claim for Utility Model Registration] At the tip of the boom, there is a workbench, a crane arm that can extend and contract freely, and a winch that hangs down through the tip of the crane arm and winds up a rope with a hook attached to the tip. and a lifting device that lifts an object to the side of the work platform, etc. A lifting force switching device for an aerial work vehicle equipped with a lifting device, wherein the crane arm is in a fully retracted state. a fully retracted state detector that detects that the rope is under tension due to lifting the object; and a tension detector that detects that the rope is under tension due to lifting the object; and a detection signal from the fully retracted state detector is not input. In this case, the winding force of the rope in the winch is set to the first winding force, and the crane arm is allowed to extend and contract, and detection signals from both the fully retracted state detector and the tension detector are input. the crane arm control means for setting the winding force to a second winding force greater than the first winding force and regulating the extension operation of the crane arm when Lifting force switching device for aerial work vehicles equipped with a lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10151290U JPH0458599U (en) | 1990-09-27 | 1990-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10151290U JPH0458599U (en) | 1990-09-27 | 1990-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458599U true JPH0458599U (en) | 1992-05-20 |
Family
ID=31845031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10151290U Pending JPH0458599U (en) | 1990-09-27 | 1990-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458599U (en) |
-
1990
- 1990-09-27 JP JP10151290U patent/JPH0458599U/ja active Pending
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