JPS56150228A - Control of attitude of bucket of oil-pressure shovel - Google Patents

Control of attitude of bucket of oil-pressure shovel

Info

Publication number
JPS56150228A
JPS56150228A JP5361280A JP5361280A JPS56150228A JP S56150228 A JPS56150228 A JP S56150228A JP 5361280 A JP5361280 A JP 5361280A JP 5361280 A JP5361280 A JP 5361280A JP S56150228 A JPS56150228 A JP S56150228A
Authority
JP
Japan
Prior art keywords
bucket
attitude
lever
signals
operated
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
Application number
JP5361280A
Other languages
Japanese (ja)
Other versions
JPS6252091B2 (en
Inventor
Eiki Izumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP5361280A priority Critical patent/JPS56150228A/en
Publication of JPS56150228A publication Critical patent/JPS56150228A/en
Publication of JPS6252091B2 publication Critical patent/JPS6252091B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To control a pump variably driving a bucket for controlling the attitude of the bucket by using control signals from swash plate-position signal for at least one of variable pumps and a signal based on a given function during the operation of at least one of boom and arm.
CONSTITUTION: At first, when a bucket is not controlled, switches 52 and 53 are turned into OFF. Then, when the attitude of the bucket is controlled, the switches 52 and 53 are closed. And, when a boom lever 39 and an arm lever 40 are concurrently or singly operated, each cylinder is operated according to the operating amount of each, and the attitude of the bucket is also operated correspondingly. In this case, when a bucket lever is operated, the signal obtained by multiplying the signals of each function generator by multipliers 55 and 56 and the signal of the lever 41 are added to the swash plate-position signals of each pump at an adder 54, and by the signals, the pump 19 driving the bucket is controlled.
COPYRIGHT: (C)1981,JPO&Japio
JP5361280A 1980-04-24 1980-04-24 Control of attitude of bucket of oil-pressure shovel Granted JPS56150228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5361280A JPS56150228A (en) 1980-04-24 1980-04-24 Control of attitude of bucket of oil-pressure shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5361280A JPS56150228A (en) 1980-04-24 1980-04-24 Control of attitude of bucket of oil-pressure shovel

Publications (2)

Publication Number Publication Date
JPS56150228A true JPS56150228A (en) 1981-11-20
JPS6252091B2 JPS6252091B2 (en) 1987-11-04

Family

ID=12947718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5361280A Granted JPS56150228A (en) 1980-04-24 1980-04-24 Control of attitude of bucket of oil-pressure shovel

Country Status (1)

Country Link
JP (1) JPS56150228A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898530A (en) * 1981-12-09 1983-06-11 Hitachi Constr Mach Co Ltd Controller for rectiliner excavation performed by hydraulic shovel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528602A (en) * 1975-07-09 1977-01-22 Hitachi Construction Machinery Device for controlling angle of bucket of hydraulic shovel etc*

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528602A (en) * 1975-07-09 1977-01-22 Hitachi Construction Machinery Device for controlling angle of bucket of hydraulic shovel etc*

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898530A (en) * 1981-12-09 1983-06-11 Hitachi Constr Mach Co Ltd Controller for rectiliner excavation performed by hydraulic shovel

Also Published As

Publication number Publication date
JPS6252091B2 (en) 1987-11-04

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