JPS58152410A - 作業部の対地レベル検出装置 - Google Patents

作業部の対地レベル検出装置

Info

Publication number
JPS58152410A
JPS58152410A JP3566982A JP3566982A JPS58152410A JP S58152410 A JPS58152410 A JP S58152410A JP 3566982 A JP3566982 A JP 3566982A JP 3566982 A JP3566982 A JP 3566982A JP S58152410 A JPS58152410 A JP S58152410A
Authority
JP
Japan
Prior art keywords
comparator
ground
support frame
ultrasonic
time
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
JP3566982A
Other languages
English (en)
Japanese (ja)
Other versions
JPS644601B2 (2
Inventor
佐藤　茂夫
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP3566982A priority Critical patent/JPS58152410A/ja
Publication of JPS58152410A publication Critical patent/JPS58152410A/ja
Publication of JPS644601B2 publication Critical patent/JPS644601B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Harvester Elements (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Agricultural Machines (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
JP3566982A 1982-03-04 1982-03-04 作業部の対地レベル検出装置 Granted JPS58152410A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3566982A JPS58152410A (ja) 1982-03-04 1982-03-04 作業部の対地レベル検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3566982A JPS58152410A (ja) 1982-03-04 1982-03-04 作業部の対地レベル検出装置

Publications (2)

Publication Number Publication Date
JPS58152410A true JPS58152410A (ja) 1983-09-10
JPS644601B2 JPS644601B2 (2) 1989-01-26

Family

ID=12448274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3566982A Granted JPS58152410A (ja) 1982-03-04 1982-03-04 作業部の対地レベル検出装置

Country Status (1)

Country Link
JP (1) JPS58152410A (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412284A (en) * 1987-07-06 1989-01-17 Kurita Water Ind Ltd Ultrasonic range finder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216325A (en) * 1975-07-30 1977-02-07 Yanmar Agricult Equip Cutterrbar adjusting device for combine
JPS5570761A (en) * 1978-11-22 1980-05-28 Matsushita Electric Ind Co Ltd Ultrasonic wave distance meter
JPS56153267A (en) * 1980-04-30 1981-11-27 Diesel Kiki Co Ltd Distance measuring device using ultrasonic wave

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216325A (en) * 1975-07-30 1977-02-07 Yanmar Agricult Equip Cutterrbar adjusting device for combine
JPS5570761A (en) * 1978-11-22 1980-05-28 Matsushita Electric Ind Co Ltd Ultrasonic wave distance meter
JPS56153267A (en) * 1980-04-30 1981-11-27 Diesel Kiki Co Ltd Distance measuring device using ultrasonic wave

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412284A (en) * 1987-07-06 1989-01-17 Kurita Water Ind Ltd Ultrasonic range finder

Also Published As

Publication number Publication date
JPS644601B2 (2) 1989-01-26

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