JPS5523231A - Bucket pose controller for excavator - Google Patents

Bucket pose controller for excavator

Info

Publication number
JPS5523231A
JPS5523231A JP9535378A JP9535378A JPS5523231A JP S5523231 A JPS5523231 A JP S5523231A JP 9535378 A JP9535378 A JP 9535378A JP 9535378 A JP9535378 A JP 9535378A JP S5523231 A JPS5523231 A JP S5523231A
Authority
JP
Japan
Prior art keywords
bucket
pose
earth
sand holding
detector
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
JP9535378A
Other languages
Japanese (ja)
Inventor
Shinya Okabe
Kiyonobu Hirose
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 JP9535378A priority Critical patent/JPS5523231A/en
Publication of JPS5523231A publication Critical patent/JPS5523231A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/436—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like for keeping the dipper in the horizontal position, e.g. self-levelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE:To restrain the backward rotation of a bucket beyond the earth-and-sand holding pose by responding to the output of a bucket pose detector when the bucket is about to rotate backward from the predetermined earth-and-sand holding pose. CONSTITUTION:A bucket pose detector 30 holds a rigid rod 33 substantially parallel with a boom 3 and an expandable rod 34 substantially parallel with an arm 4, in the shape of parallelograms formed by pins 20, 21, 36, and 47 and pins 21, 26, 41, and 36 as vertices, with an intermediate link 35 therebetween. A signal generator 32 is operated in response to the output of the bucket pose detector 30. In bucket raising operation, when a bucket 5 is about to rotate forward beyond its earth-and- sand holding pose, an oil-pressure change-over valve comes to its closed position and the bucket is prevented from rotating forward beyond its earth-and-sand holding pose.
JP9535378A 1978-08-04 1978-08-04 Bucket pose controller for excavator Pending JPS5523231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9535378A JPS5523231A (en) 1978-08-04 1978-08-04 Bucket pose controller for excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9535378A JPS5523231A (en) 1978-08-04 1978-08-04 Bucket pose controller for excavator

Publications (1)

Publication Number Publication Date
JPS5523231A true JPS5523231A (en) 1980-02-19

Family

ID=14135287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9535378A Pending JPS5523231A (en) 1978-08-04 1978-08-04 Bucket pose controller for excavator

Country Status (1)

Country Link
JP (1) JPS5523231A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536326A (en) * 1976-07-08 1978-01-20 Mizusawa Industrial Chem Waterrresistant gypsum cureemolding strusture and its production method
WO2022215373A1 (en) * 2021-04-08 2022-10-13 株式会社小松製作所 Position estimating system, position estimating unit, work machine, and extension unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536326A (en) * 1976-07-08 1978-01-20 Mizusawa Industrial Chem Waterrresistant gypsum cureemolding strusture and its production method
JPS5759231B2 (en) * 1976-07-08 1982-12-14 Mizusawa Kagaku Kogyo Kk
WO2022215373A1 (en) * 2021-04-08 2022-10-13 株式会社小松製作所 Position estimating system, position estimating unit, work machine, and extension unit

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