ES415032A1 - Crop harvester with automatic height control - Google Patents

Crop harvester with automatic height control

Info

Publication number
ES415032A1
ES415032A1 ES415032A ES415032A ES415032A1 ES 415032 A1 ES415032 A1 ES 415032A1 ES 415032 A ES415032 A ES 415032A ES 415032 A ES415032 A ES 415032A ES 415032 A1 ES415032 A1 ES 415032A1
Authority
ES
Spain
Prior art keywords
switches
trip
coils
descent
current source
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
ES415032A
Other languages
Spanish (es)
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.)
DEFRE Co
Original Assignee
DEFRE Co
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 DEFRE Co filed Critical DEFRE Co
Publication of ES415032A1 publication Critical patent/ES415032A1/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
    • A01D41/14—Mowing tables
    • A01D41/141—Automatic header control

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Harvesting Machines For Root Crops (AREA)

Abstract

A harvesting machine with a harvesting device for the crop product, vertically adjustable by means of a hydraulic displacement device, in which at least one vertically adjustable sensing device is arranged having at least two control elements to generate lifting signals or descent, the control elements, or switches, being connected through an electrical circuit with coils of a control valve-slide for the hydraulic displacement device and being operable by means of impulse emitters that are adjustable between one raised position, a hold position and a lowered position, with the sensing device, characterized in that, in the collection device, a plurality of independently moveable sensing devices are arranged at a certain distance from each other, each of which has a pulse emitter, to which are associated two inte Tripping switches connected to the circuit provided with logic control elements, connected to the coils of the control slide valve, the logic circuit elements having numerous switches that connect the current source to the coils, the first and second switches being the logical circuit elements connected with the trip switches and the first switches being dependent on the position of all the trip switches and connected with them in the direction of action to interrupt the flow of current between the current source and the coil intended for descent when one of the trip switches causes a lift signal or a descent signal, while the second switches are dependent on the position of the trip switches and linked with them in the direction of action to ensure the flow of current from the current source to the bobi na intended for lifting when one of the trip switches causes a lifting signal. (Machine-translation by Google Translate, not legally binding)
ES415032A 1972-03-23 1973-03-15 Crop harvester with automatic height control Expired ES415032A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23733472A 1972-03-23 1972-03-23

Publications (1)

Publication Number Publication Date
ES415032A1 true ES415032A1 (en) 1976-02-01

Family

ID=22893293

Family Applications (1)

Application Number Title Priority Date Filing Date
ES415032A Expired ES415032A1 (en) 1972-03-23 1973-03-15 Crop harvester with automatic height control

Country Status (6)

Country Link
CA (1) CA968964A (en)
DE (1) DE2304081C2 (en)
ES (1) ES415032A1 (en)
FR (1) FR2176706B1 (en)
GB (1) GB1409485A (en)
IN (1) IN140669B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461115C2 (en) * 1974-12-23 1985-06-13 Maschinenfabrik Fahr Ag Gottmadingen, 7702 Gottmadingen Automatic work table adjustment on agricultural machinery
US4009555A (en) * 1976-02-26 1977-03-01 Massey-Ferguson Inc. Height control for combine headers
US4211057A (en) * 1978-03-20 1980-07-08 Massey-Ferguson Industries Limited Combine harvester automatic table height control
US4171606A (en) * 1978-06-30 1979-10-23 Deere & Company Attitude control for a harvester pickup
GB2129265B (en) * 1982-11-02 1986-03-26 Turner Int Mowers
DE3246569A1 (en) * 1982-12-16 1984-06-20 Franz 8623 Staffelstein Kirchberger Control system for agricultural machines, especially seed drills
DE3326609A1 (en) * 1983-07-23 1985-01-31 Claas Ohg, 4834 Harsewinkel Arrangement for measuring the working position of a vertically adjustable pick-up device of a harvesting machine
DE3326666A1 (en) * 1983-07-23 1985-01-31 Claas Ohg, 4834 Harsewinkel Device for regulating the working position of a vertically adjustable pick-up appliance of a harvester
DE3328506A1 (en) * 1983-08-06 1985-02-14 Claas Ohg, 4834 Harsewinkel Displacement sensor for measuring the working position of the pick-up device of a harvesting machine
DD279807A1 (en) * 1989-02-10 1990-06-20 Fortschritt Veb K INITIATOR-CONTROLLED TERMINATION CIRCUIT FOR A FLOOR-PROCESSED CUTTING DEVICE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750727A (en) * 1953-01-14 1956-06-19 Preston M Wright Automatic header control means
DE1119580B (en) * 1955-10-10 1961-12-14 Maehdrescherwerk Weimar Veb Device for guiding the cutting units of combine harvesters according to the soil surface
AT198052B (en) * 1956-03-23 1958-06-10 Maehdrescherwerk Weimar Veb Automatic control of the working position or working height of the cutter bar, the beet topping device or the like on agricultural machines
US3286448A (en) * 1964-01-21 1966-11-22 Roper Wright Mfg Co Inc Automatic header control apparatus
DE1265476B (en) * 1965-03-03 1968-04-04 Franz Wienecke Dr Ing Automatic control device for combine harvester
DE1937346A1 (en) * 1967-12-28 1971-02-04 Bosch Gmbh Robert Hydraulic lifting device on combine harvesters
DE2020920A1 (en) * 1969-06-15 1971-01-07 Fortschritt Veb K Device for the automatic guidance of the cutting mechanism of straw harvesting machines, in particular of combine harvesters, according to the soil surface

Also Published As

Publication number Publication date
IN140669B (en) 1976-12-11
DE2304081C2 (en) 1983-05-26
FR2176706A1 (en) 1973-11-02
FR2176706B1 (en) 1976-04-30
CA968964A (en) 1975-06-10
DE2304081A1 (en) 1973-10-04
GB1409485A (en) 1975-10-08

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