JPS6420010A - Apparatus for detecting machine height of paddy field working machine - Google Patents

Apparatus for detecting machine height of paddy field working machine

Info

Publication number
JPS6420010A
JPS6420010A JP17641587A JP17641587A JPS6420010A JP S6420010 A JPS6420010 A JP S6420010A JP 17641587 A JP17641587 A JP 17641587A JP 17641587 A JP17641587 A JP 17641587A JP S6420010 A JPS6420010 A JP S6420010A
Authority
JP
Japan
Prior art keywords
height
mud
pressure
inputted
sensor
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
JP17641587A
Other languages
Japanese (ja)
Other versions
JPH066B2 (en
Inventor
Hiroto Kimura
Yoshio Watanabe
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 JP17641587A priority Critical patent/JPH066B2/en
Publication of JPS6420010A publication Critical patent/JPS6420010A/en
Publication of JPH066B2 publication Critical patent/JPH066B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Transplanting Machines (AREA)

Abstract

PURPOSE:To enable the detection of a machine height to prevent the resistance of the machine body with the moving speed, by detecting the height of a machine body from the surface of mud based on the detection signal transmitted when the detected value of a pressure- sensitive sensor reaches a prescribed level. CONSTITUTION:Signals from a pressure-sensitive sensor 8 and a proximity sensor 11 are inputted into a controlling device 12. The inputted signal B' corresponds to the passage of the pressure-sensitive face 8a of the pressure-sensitive sensor 8 on a detecting point B on the surface S of a paddy field and the inputted signal C' corresponds to the passage of the sensor on a detecting point C on the mud surface G having a prescribed mud hardness used as a standard for transplantation. The height of the seedling transplantation apparatus from the mud surface G is detected by measuring the period (t) from the time A' corresponding to the standard position preset based on the signal transmitted from the proximity sensor 11 to the time when the signal C' corresponding to the preset mud hardness is inputted. A hydraulic cylinder 14 of a quadruple link mechanism 6 is extended or contracted by a controlling device 12 via a control valve 13 in such a manner as to keep the preset height of the seedling transplantation apparatus from the mud surface G based on the detected height.
JP17641587A 1987-07-15 1987-07-15 Airframe height detector for paddy work machines Expired - Lifetime JPH066B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17641587A JPH066B2 (en) 1987-07-15 1987-07-15 Airframe height detector for paddy work machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17641587A JPH066B2 (en) 1987-07-15 1987-07-15 Airframe height detector for paddy work machines

Publications (2)

Publication Number Publication Date
JPS6420010A true JPS6420010A (en) 1989-01-24
JPH066B2 JPH066B2 (en) 1994-01-05

Family

ID=16013289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17641587A Expired - Lifetime JPH066B2 (en) 1987-07-15 1987-07-15 Airframe height detector for paddy work machines

Country Status (1)

Country Link
JP (1) JPH066B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009240180A (en) * 2008-03-28 2009-10-22 Kubota Corp Rice transplanter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009240180A (en) * 2008-03-28 2009-10-22 Kubota Corp Rice transplanter

Also Published As

Publication number Publication date
JPH066B2 (en) 1994-01-05

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