JPH0249993U - - Google Patents

Info

Publication number
JPH0249993U
JPH0249993U JP12941888U JP12941888U JPH0249993U JP H0249993 U JPH0249993 U JP H0249993U JP 12941888 U JP12941888 U JP 12941888U JP 12941888 U JP12941888 U JP 12941888U JP H0249993 U JPH0249993 U JP H0249993U
Authority
JP
Japan
Prior art keywords
control valve
signal
comparator
computing unit
work machine
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
Application number
JP12941888U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12941888U priority Critical patent/JPH0249993U/ja
Publication of JPH0249993U publication Critical patent/JPH0249993U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Servomotors (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは本考案に係る油圧駆動装置のシヨツ
クレス機構を搭載した高所作業車の一例を示す斜
視図、第１図ｂは同上油圧駆動装置のシヨツクレ
ス機構の概要示す説明図、第２図は油量制御状態
を示すグラフである。 １……高所作業車、２……ターンテーブル、３
……ブーム、４……起伏シリンダ、５……作業機
（バケツト）、６……伸縮シリンダ、７……ブー
ム長さ検出器、８……アウトリガ、９……制御部
、９ａ……記憶器、９ｂ……比較器、９ｃ……演
算器、１０……コントロールバルブ。 FIG. 1a is a perspective view showing an example of an aerial work vehicle equipped with a shock mechanism for a hydraulic drive system according to the present invention, FIG. is a graph showing the oil amount control state. 1...Aerial work vehicle, 2...Turntable, 3
...Boom, 4...Luffing cylinder, 5...Work equipment (bucket), 6...Telescopic cylinder, 7...Boom length detector, 8...Outrigger, 9...Control unit, 9a...Memory device , 9b...comparator, 9c...computer, 10...control valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧シリンダ、油圧モータ等を駆動原として起
伏、伸縮等の作動を行う作業機を装備した高所作
業車等において、前記作業機の適宜位置に設けた
位置検出器と、該位置検出器で検出した所定の検
出信号と予め記憶回路に記憶しているコントロー
ルバルブ制御信号とを比較する比較器と、該比較
器の出力信号を受けてコントロールバルブを制御
するための信号を出力する演算器と、該演算器の
出力信号に従い、前記駆動原に駆動に必要な最小
限の駆動油を供給するコントロールバルブとで構
成したことを特徴とする油圧駆動装置のシヨツク
レス機構。 In an aerial work vehicle, etc. equipped with a work machine that performs operations such as raising/lowering, extending/contracting, etc. using a hydraulic cylinder, hydraulic motor, etc. as a drive source, detection is performed using a position detector installed at an appropriate position on the work machine and the position detector. a comparator that compares the predetermined detection signal and a control valve control signal stored in advance in a storage circuit; a computing unit that receives the output signal of the comparator and outputs a signal for controlling the control valve; A shockless mechanism for a hydraulic drive device, comprising a control valve that supplies a minimum amount of drive oil necessary for driving to the drive source according to an output signal of the computing unit.
JP12941888U 1988-09-30 1988-09-30 Pending JPH0249993U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12941888U JPH0249993U (en) 1988-09-30 1988-09-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12941888U JPH0249993U (en) 1988-09-30 1988-09-30

Publications (1)

Publication Number Publication Date
JPH0249993U true JPH0249993U (en) 1990-04-06

Family

ID=31383676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12941888U Pending JPH0249993U (en) 1988-09-30 1988-09-30

Country Status (1)

Country Link
JP (1) JPH0249993U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217600A (en) * 1983-05-24 1984-12-07 極東開発工業株式会社 Automatic stoppage controller for gondola of height service car
JPS62157200A (en) * 1985-12-27 1987-07-13 株式会社豊田自動織機製作所 Boom stroke-end shock relaxation device for height service car

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217600A (en) * 1983-05-24 1984-12-07 極東開発工業株式会社 Automatic stoppage controller for gondola of height service car
JPS62157200A (en) * 1985-12-27 1987-07-13 株式会社豊田自動織機製作所 Boom stroke-end shock relaxation device for height service car

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