EP0050203A2 - Levier de réglage, notamment pour la présélection de la vitesse de déplacement dans des machines agricoles autopropulsées - Google Patents

Levier de réglage, notamment pour la présélection de la vitesse de déplacement dans des machines agricoles autopropulsées Download PDF

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Publication number
EP0050203A2
EP0050203A2 EP81106635A EP81106635A EP0050203A2 EP 0050203 A2 EP0050203 A2 EP 0050203A2 EP 81106635 A EP81106635 A EP 81106635A EP 81106635 A EP81106635 A EP 81106635A EP 0050203 A2 EP0050203 A2 EP 0050203A2
Authority
EP
European Patent Office
Prior art keywords
handle
push rod
sensed
limit switch
lever
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.)
Ceased
Application number
EP81106635A
Other languages
German (de)
English (en)
Other versions
EP0050203A3 (fr
Inventor
Josef Pürrer
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0050203A2 publication Critical patent/EP0050203A2/fr
Publication of EP0050203A3 publication Critical patent/EP0050203A3/fr
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G13/00—Manually-actuated control mechanisms provided with two or more controlling members and also two or more controlled members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20468—Sliding rod
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/20612—Hand

Definitions

  • the invention relates to a regulating lever, in particular lever for preselecting the driving speed on self-propelled agricultural machines, such as combine harvesters, with a handle for lever actuation.
  • Such regulating levers are usually attached to a rod in the ergonomically favorable grip area of the driver, which rod can be pivoted about a horizontal axis.
  • the rod can only be adjusted with difficulty, so that every position set on the regulating lever is automatically maintained. In this way, a specific function is selected.
  • the position of the regulating lever also determines for example the driving speed.
  • the object of the invention is therefore to equip a regulating lever, in particular the regulating lever provided for preselecting the driving speed of the hydrostatic drive, with switching devices for further functions, in particular for lifting or lowering and also reversing the direction of rotation of the front attachment and also reversing the pull-in members which on the regulating lever can be controlled simultaneously in one-hand operation.
  • the regulating lever is designed as a combination switch, for which the handle of the regulating lever is designed as a hollow handle, Non-displaceable in the axial direction, but rotatable about its axis, inside the handle there is a push rod that is displaceable in the axial direction against spring pressure, the actuating end of which protrudes from the handle, and finally the rotary position of the handle and the displaced position of the push rod are sensed by switch sensors and in control commands are feasible.
  • the handle is used in the usual way for adjusting the regulating lever.
  • another control function can be carried out by turning the handle.
  • the rotation of the handle can also operate different control functions depending on the direction of rotation and / or enable several control functions depending on the angle of rotation.
  • the end of the push rod can be actuated with the thumb, the displacement position of which in turn permits one, two or even three different switching functions.
  • the regulating lever can thus be adjusted by pushing or pulling on the handle, but at the same time the handle can also be turned in one or the other direction of rotation and the push rod can be pressed in against spring pressure.
  • at least three, but advantageously also five or more functions can be controlled in one-handed operation on one and the same control element. A considerable simplification of operation and operational safety is achieved in this way.
  • a cylindrical sleeve is connected to the control lever, on which also the handle is rotatably g e-layered and is displaceably guided in the inside the push rod.
  • the sleeve separates the rotatable handle and the movable push rod and also serves as a clean guide for both. This simplifies operation with the simplest structure.
  • the push rod which is displaceable against spring pressure, forms a type of pushbutton switch which assumes its zero position automatically without actuation.
  • the handle could also be provided with a spring return. However, since it is a rotary handle, this would make it difficult to operate. It is therefore expedient to give the handle a locked neutral position.
  • the handle can have a radially engaging catch on its circumference, which is assigned a catch bolt that is movable in the radial direction and spring-loaded in the direction of the axis of the handle. This is provided with a rounded head in such a way that it can be pressed out of the catch by turning the handle and then no longer stands in the way of turning the handle.
  • the locking pin enables the neutral position to be found again without special attention. It also shows the driver the passage through the neutral position when changing from one control command to another when several different functions can be controlled by turning in different directions from the neutral position.
  • Switch sensors of various types can be used to sense the rotational position of the handle and the shift position of the push rod, as long as they are only suitable for converting the control movements into control commands.
  • the embodiments of the switching sensors described below are particularly simple, but at the same time robust and practical embodiments.
  • the outer circumference of the handle can have one or two cutouts, each of which is sensed by one end of a radially movable spring-loaded switching plunger of a switch. If the groove depth changes in the circumferential direction Milled out, the switch plunger can move out of the switch more or less depending on the rotary position and actuate the switch at a certain point. If two such cut-outs are arranged next to one another, then these are expediently offset against one another in the circumferential direction in such a way that one limit switch takes effect in a certain rotational position and the other limit switch takes effect in another specific rotational position. Appropriately, these two rotational positions are in different directions, starting from the neutral position, so that they can be selected directly from the neutral position.
  • control functions can also be controlled in succession on the circumference. For example, it is conceivable to first actuate a switching function also starting from the neutral position, but, if the rotation continues in the same direction of rotation, an additional or a different one. However, the control must not be too complicated, since then operating errors are inevitable again. It is therefore particularly expedient if a switching function is actuated with the rotatable handle starting from its neutral position in every direction of rotation.
  • the push rod is able to actuate such switching tappets. If you use an axially parallel flattening of its surface, which merges into the cylindrical push rod surface, for example, via an inclined ramp, all limit switches with parallel: - Direction of action of their switching plungers. be combined into a massive block. They are all in one plane, which contains all the switching plunger axes on the one hand and the axis of the push rod on the other. This saves space and enables easy encapsulation of the switching sensors, which increases in rough field operation that leads to operational safety. Of course, the locking bolt can also be included in the block in such a way that its axis also lies in the plane that contains the axes of all the switching plunger and the push rod.
  • potentiometers or other organs with a continuous change in the control command amplitude proportional to the deflection amplitude of the handle or the push rod can be used.
  • Fig. 1 shows schematically a control lever 1, as it is shown in the direction of travel.
  • the regulating lever 1 can be pivoted about a horizontal axis (not shown) via a handle 2.
  • the axis lies in the plane of the paper and parallel to the axis of the handle 2.
  • the pivoting movement can - based on the direction of travel - to the front and also to the rear, in FIG. 1 thus away from the viewer from the figure level downwards or towards the viewer from the figure level upwards.
  • the swiveling movement allows the travel speed on the hydrostatic travel drive of a self-propelled agricultural harvesting machine, such as a combine harvester or a forage harvester, to be continuously selected.
  • the driving speed selected by the regulating lever 1 is maintained until the regulating lever is adjusted again.
  • the adjustment elements necessary for influencing the driving speed through the regulating lever position are generally known. A detailed description is therefore not necessary at this point.
  • Fig. 2 shows the design of the regulating lever as a combination switch in detail.
  • a sleeve 3 is fixedly connected to the support rod 4 of the regulating lever 1 which extends downward from the handle 2.
  • the sleeve 3 has a cylindrical outer circumference on which the handle 2 is rotatably placed. This is supported on one side on the support rod 4, on the other side is releasably and removably held by a retaining ring.
  • the handle 2 is thus immovable in the axial direction, but freely rotatable on the outer circumference of the sleeve 3.
  • the cylindrical inner bore of the handle 2 designed as a hollow handle has a play relative to the cylindrical outer circumference of the sleeve 3.
  • the interior of the sleeve 3 is also hollow and receives a push rod 5.
  • This consists of an actuating end 5 'protruding from the hollow handle 2 on one side with an actuating recess 5 "in the end face for the thumb of the driver's hand that grips the handle 2, and a control end 5""on the other Side of the sleeve from this emerges and passes through an opening in the housing.
  • a stop ring 5"" is placed thereon.
  • the control end 5 1 " is cylindrical and passes through a corresponding guide opening in the central region of the sleeve.
  • the sleeve On the part of the protruding actuating end 5 1 , the sleeve has an inner bore of an enlarged diameter, to which the diameter of the actuating end 5 1 adapts.
  • the push rod is therefore a step rod.
  • the push rod 5 is forced into a rest position, in which the stop ring 5 "" rests in a stop trough provided for this purpose on the housing or on the opposite end of the sleeve 3 and thus defines the stop position.
  • Suitable measures also ensure that the push rod 5 cannot rotate about its own axis.
  • the actuating end 5 1 can have a non-circular cross section.
  • a first group of limit switches 6, 7 is attached on the left side of the wire rod 4 in the drawing.
  • a bearing plate 9 is also pulled down on the support rod 4, which supports a locking pin 10.
  • the locking pin 10 is spring-loaded radially in the direction of the axis of the push rod 5 or the handle 2.
  • Br has a rounded head and reaches into new tral ein (see. Fig. 3) in a detent 16 on the circumference of the handle 2.
  • the shallow catch 16, the shape of the head of the catch bolt 10 and the strength of its spring loading ensure that when the handle 2 is actuated the neutral position can be left on the one hand without any particular effort, but on the other hand it can be visited again at any time with a clear registration of the catch without special attention can be. This applies to both possible directions of rotation.
  • Switch plungers 12, 13 of limit switches 6, 7 are in the neutral position in cutouts 14, 15 of the circumference of handle 2. In this position, limit switches 6, 7 are not actuated by switch plungers 12, 13. The millings have a depth that decreases in the circumferential direction. In this case, however, the depth of the cutout 14 is reduced from the neutral position in the clockwise direction (FIG. 3), while here the cutout 15 remains undiminished. On the other hand, the depth of the cutout 15 is reduced, starting from the neutral position in the counterclockwise direction, while the cutout 14 keeps its depth undiminished. It is thus selectively pressed in when the handle 2 is rotated forward (in the counterclockwise direction of FIG.
  • a further group of limit switches 17, 18 is fastened to the support rod 4 with the aid of a fastening means 19.
  • switching plungers 20, 21 of the limit switches 17, 18 are out drive, so the limit switches are not actuated.
  • This is made possible by a one-sided flattening 22 of the push rod 5 in the area of its control end 5 "".
  • the flattening 22 merges into the full outer circumference of the control end 5 "" in an inclined ramp. If the push rod 5 is pressed to the right by thumb pressure in the area of the actuating depression 5 ′′ in FIG.
  • the switching plunger 20 is first pressed into the limit switch 17 and this is actuated, in addition to actuating the limit switch 17 when the push rod is pressed in further the limit switch 18 is actuated, and when the push rod 5 is released, it automatically returns to the position shown in FIG.
  • the electrical connecting lines 23 for the limit switches 6, 7 and 24 for the limit switches 17, 18 are guided encapsulated within a channel 25 provided on the support rod 4.
  • This channel is formed by the support rod 4 on the one hand and a cover plate 26 on the other.
  • a particularly simple, less bulky and handsome form of the cover 27 results when the various limit switches, as shown in FIG. 2, are arranged so that the axes of their switching plungers are all parallel to one another in one and the same plane.
  • the axis of the locking pin 10 is expediently in the same plane.
  • the entire regulating lever 1 By pushing forward, the entire regulating lever 1 can be pivoted about its horizontal axis explained at the beginning and the driving speed can thus be increased. On the other hand, a pull on the handle 2 causes the regulating lever 1 to pivot toward the driver and thus reduces the driving speed.
  • either the limit switch 6 or the limit switch 7 can be actuated by rotating the handle 2.
  • the electrical control commands triggered in this way are fed to electromagnetically actuated control valves for the hydraulic lifting mechanism of the attachment of the agricultural harvesting machine.
  • Dad happens preferably, because it makes sense, in such a way that the "lower” function is switched by turning the handle 2 forwards (counterclockwise in FIG. 3), that is to say by actuating the limit switch 6, and vice versa by turning the handle 2 backwards (In Fig. 3 clockwise) the "lift” function is switched, which is done via the limit switch 7.
  • the neutral position between these two functions can easily be found by a clearly perceptible catch, which is achieved with the aid of the catch bolt 10.
  • Additional functions can be controlled by pressing the push rod 5 with your thumb. If, for example, the limit switch 17 is actuated by pushing in the push rod 5, the rotating parts of the front device are reversed. This can be, for example, a feed auger that brings the harvested crop together towards the center and transfers it to the feed elements of the chopper. If the push rod 5 is pushed in completely, it also actuates the limit switch 18 as well, so there only the rotating parts of the front attachment are reversed, but the rotating intake elements of the chopper are also reversed. The intake elements are to be understood here as the rotating rollers of the chopper, which are upstream of the chopper drum. Of course, these functions are only to be provided, for example. Other functions can be controlled on other machines.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Harvester Elements (AREA)
EP81106635A 1980-10-20 1981-08-26 Levier de réglage, notamment pour la présélection de la vitesse de déplacement dans des machines agricoles autopropulsées Ceased EP0050203A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3039584A DE3039584C2 (de) 1980-10-20 1980-10-20 Regulierhebel, insbesondere zur Vorwahl der Fahrgeschwindigkeit an selbstfahrenden landwirtschaftlichen Maschinen
DE3039584 1980-10-20

Publications (2)

Publication Number Publication Date
EP0050203A2 true EP0050203A2 (fr) 1982-04-28
EP0050203A3 EP0050203A3 (fr) 1983-04-06

Family

ID=6114793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106635A Ceased EP0050203A3 (fr) 1980-10-20 1981-08-26 Levier de réglage, notamment pour la présélection de la vitesse de déplacement dans des machines agricoles autopropulsées

Country Status (3)

Country Link
US (1) US4454785A (fr)
EP (1) EP0050203A3 (fr)
DE (1) DE3039584C2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610178A (en) * 1984-06-27 1986-09-09 Toyo Unpanki Co., Ltd. Speed changer for vehicles used in construction work
US4554751A (en) * 1984-10-03 1985-11-26 Nicolosi Carl T Multi-function vehicular gear shift lever for snowplow operation
DE3516783C2 (de) * 1985-05-09 1994-08-25 Schroeder Werner Schalthebelknauf
DE4008737A1 (de) * 1990-03-19 1991-09-26 Amazonen Werke Dreyer H Anordnung von ueberwachungs- und bedienungsarmaturen
US5010780A (en) * 1990-05-15 1991-04-30 Plastic Industries, Inc. Device for actuating a remotely positioned spring-biased latch
US5361644A (en) * 1991-04-10 1994-11-08 Wagner Fordertechnik Gmbh & Co. Kg Combination control grip for two-hand operation or guided-surface industrial trucks
US5168769A (en) * 1991-05-24 1992-12-08 The United States Of America As Represented By The Secretary Of The Army Dual acting brake actuator
FR2698839B1 (fr) * 1992-12-03 1995-03-03 Rockwell Abs France Frein de parc pour véhicule automobile à faible effort de serrage.
DE4320591A1 (de) * 1993-06-22 1995-01-05 Burgess Gmbh Schaltvorrichtung zur Anordnung im Bereich eines Bedienungshebels
US5706705A (en) * 1996-03-21 1998-01-13 P. L. Porter Co. Low profile push-button mechanical remote control
US5829315A (en) * 1996-10-11 1998-11-03 Raytheon Company Two axis linear actuation mechanism
DE19832870C1 (de) * 1998-07-22 1999-04-08 Porsche Ag Bedienelement für eine Abstandsregeleinrichtung für Fahrzeuge
US6610946B2 (en) 2001-04-20 2003-08-26 Black & Decker Inc. Actuation mechanism for a power tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951763C (de) * 1953-03-08 1956-10-31 Kienzle Feinbau K G Hydraulisches Steuergeraet fuer Entlade- und Transportgeraete
DE1163428B (de) * 1961-05-18 1964-02-20 Helmut Kubalski Schalter mit einem Knebel-Druck- und Dreh-Schaltorgan zur Bedienung eines Mehrstufen-Schaltsystems
US3354981A (en) * 1966-03-07 1967-11-28 Int Harvester Co Hand control mechanism for vehicle with hydrostatic transmission
DE2123438A1 (de) * 1970-05-14 1971-11-25 Cge Spa Hebel mit anatomischem Griff für Vielfachsteuerung
US4085301A (en) * 1976-09-16 1978-04-18 Fairchild Camera And Instrument Corporation Hand-held controller device

Also Published As

Publication number Publication date
US4454785A (en) 1984-06-19
DE3039584C2 (de) 1985-03-21
EP0050203A3 (fr) 1983-04-06
DE3039584A1 (de) 1982-04-29

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