GB1371276A - Agricultural machine - Google Patents

Agricultural machine

Info

Publication number
GB1371276A
GB1371276A GB4089872A GB4089872A GB1371276A GB 1371276 A GB1371276 A GB 1371276A GB 4089872 A GB4089872 A GB 4089872A GB 4089872 A GB4089872 A GB 4089872A GB 1371276 A GB1371276 A GB 1371276A
Authority
GB
United Kingdom
Prior art keywords
crop
steering
relay
harvester
sept
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.)
Expired
Application number
GB4089872A
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.)
Maschinenfabrik Fahr AG
Original Assignee
Maschinenfabrik Fahr AG
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 Maschinenfabrik Fahr AG filed Critical Maschinenfabrik Fahr AG
Publication of GB1371276A publication Critical patent/GB1371276A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/127—Control or measuring arrangements specially adapted for combines
    • A01D41/1278—Control or measuring arrangements specially adapted for combines for automatic steering

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Guiding Agricultural Machines (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

1371276 Automatic control of steering MASCHINENFABRIK FAHR AG 4 Sept 1972 [13 Sept 1971] 40898/72 Heading G3R [Also in Division A1] A harvester is steered automatically by electric means in response to signals from means which sense the edge of the crop. In the embodiment two sensors 12, 13 are arranged as shown ahead of the cutter 28; each covers a zone, a and b respectively, separated by a "dead" zone c Sensor 12 closes a first relay when it detects the absence of the crop and 13 a second relay when it detects the presence of the crop. The absence of such signals indicates that the harvester is on course, in which case its steering is automatically centred, or made to produce a prescribed curve, by an arrangement 14 in which an armature 24 attached to the steering links influences respective coils in series with an A.C. supply and electro-hydraulic valves 16 controlling the steering. Deviation from the crop edge causes energization of the appropriate relay, which disconnects the A.C. supply and energizes the corresponding valve from a battery, thereby effecting steering correction. The sensors may comprise capacitor plates which are deflected by contact with the crop, to vary the frequency of oscillators which operate the relays via respective high and low pass filters, or they may have optical or acoustic transmitters and receivers, the beam being interrupted by the crop.
GB4089872A 1971-09-13 1972-09-04 Agricultural machine Expired GB1371276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712145717 DE2145717C3 (en) 1971-09-13 1971-09-13 Automatic steering device for lateral guidance of agricultural machinery, especially for self-propelled combine harvesters

Publications (1)

Publication Number Publication Date
GB1371276A true GB1371276A (en) 1974-10-23

Family

ID=5819417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4089872A Expired GB1371276A (en) 1971-09-13 1972-09-04 Agricultural machine

Country Status (6)

Country Link
AT (1) AT322253B (en)
BE (1) BE788742A (en)
DD (1) DD99079A5 (en)
DE (1) DE2145717C3 (en)
FR (1) FR2152913B1 (en)
GB (1) GB1371276A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290212A (en) * 1993-12-27 1995-12-20 Fuji Heavy Ind Ltd Automatic steering of agricultural machine
WO2001047764A1 (en) * 1999-12-23 2001-07-05 New Holland North America, Inc. Offset kingpin for a rear steering axle on an agricultural combine
EP0992185A3 (en) * 1998-10-05 2004-01-21 CLAAS Selbstfahrende Erntemaschinen GmbH Ultra-sound locating automatic steering system
WO2014055336A1 (en) * 2012-10-02 2014-04-10 Trimble Navigation Limited Crop feeler system and method

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318571A2 (en) * 1969-07-09 1977-02-18 Couillec Fernand Combine harvester steering system - has direction sensor adjacent cutter head and controlling operation of switches
DE2418995A1 (en) * 1974-04-19 1975-11-06 Bachl Mower and thresher for standing crops such as cereals - has three sensors for automatic adjustment of cutting height
DE2455836C3 (en) * 1974-11-26 1982-01-21 Gebr.Claas Maschinenfabrik GmbH, 4834 Harsewinkel Device for the automatic guidance of agricultural machinery
DE2705491C2 (en) * 1977-02-10 1983-03-31 Gebr.Claas Maschinenfabrik GmbH, 4834 Harsewinkel Sensing device for lateral guidance of a harvesting machine
US4726175A (en) * 1987-02-02 1988-02-23 University Of Kentucky Research Foundation Harvester guidance control system
DE4441841A1 (en) * 1994-11-24 1996-05-30 Claas Ohg Touch device for automatic lateral guidance of a self-propelled harvesting machine
DE19508941A1 (en) * 1995-03-13 1996-09-19 Claas Ohg Locating device
DE19508942A1 (en) * 1995-03-13 1996-09-19 Claas Ohg Reflex locator
DE19719939A1 (en) * 1997-05-13 1998-11-19 Claas Ohg Automatically steerable harvesting machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751030A (en) * 1952-11-13 1956-06-19 Null Fay Edison Light sensitive automatically controlled steering system
US3038544A (en) 1958-11-03 1962-06-12 Ford Motor Co Tractor steering means
FR1253843A (en) 1959-10-31 1961-02-17 Gen Motors Corp On-road vehicle control device
US3208535A (en) * 1964-04-09 1965-09-28 Int Harvester Co Automatic steering of implements
US3425197A (en) * 1967-08-07 1969-02-04 Stanley Bernard Kita Vehicle guidance apparatus
DE1582237C3 (en) 1967-12-21 1975-02-13 Ewald Dipl.-Ing. 7701 Weiterdingen Graeber Side guide control for a mower
DE1800473A1 (en) * 1968-10-02 1971-01-14 Graeber Dipl Ing Ewald Lateral guidance control for agricultural machines
AT280678B (en) * 1968-07-17 1970-04-27 Epple Buxbaum Werke Automatic side control for a self-propelled machine for harvesting plants standing in rows
DE6750261U (en) * 1968-07-18 1969-01-02 Deere & Co DEVICE THAT CAN BE CONTROLLED BY AN ENCODER FOR GUIDING AGRICULTURAL WORK TOOLS, IN PARTICULAR THE CUTTING TABLE OF COMBINE HARVESTERS.
DE6750251U (en) * 1968-07-31 1969-01-02 Deere & Co STEERING DEVICE FOR AGRICULTURAL MACHINERY, IN PARTICULAR SELF-PROPELLED COMBINE
DD69234A1 (en) * 1968-09-13 1969-10-05 Erich Milde Method for detecting plant population densities, preferably for the purpose of influencing the throughput of harvesting machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290212A (en) * 1993-12-27 1995-12-20 Fuji Heavy Ind Ltd Automatic steering of agricultural machine
GB2290212B (en) * 1993-12-27 1997-04-09 Fuji Heavy Ind Ltd Vehicle
EP0992185A3 (en) * 1998-10-05 2004-01-21 CLAAS Selbstfahrende Erntemaschinen GmbH Ultra-sound locating automatic steering system
WO2001047764A1 (en) * 1999-12-23 2001-07-05 New Holland North America, Inc. Offset kingpin for a rear steering axle on an agricultural combine
WO2014055336A1 (en) * 2012-10-02 2014-04-10 Trimble Navigation Limited Crop feeler system and method
US9066463B2 (en) 2012-10-02 2015-06-30 Trimble Navigation Limited Crop feeler system and method

Also Published As

Publication number Publication date
DE2145717A1 (en) 1973-03-22
DE2145717C3 (en) 1981-10-15
BE788742A (en) 1973-01-02
FR2152913A1 (en) 1973-04-27
DD99079A5 (en) 1973-07-20
FR2152913B1 (en) 1977-07-29
DE2145717B2 (en) 1977-07-28
AT322253B (en) 1975-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee