DE3635985C1 - Locking device - Google Patents

Locking device

Info

Publication number
DE3635985C1
DE3635985C1 DE19863635985 DE3635985A DE3635985C1 DE 3635985 C1 DE3635985 C1 DE 3635985C1 DE 19863635985 DE19863635985 DE 19863635985 DE 3635985 A DE3635985 A DE 3635985A DE 3635985 C1 DE3635985 C1 DE 3635985C1
Authority
DE
Germany
Prior art keywords
support beam
mowing
drums
locking device
swath
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
DE19863635985
Other languages
German (de)
Inventor
Ulrich Sirch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19863635985 priority Critical patent/DE3635985C1/en
Application granted granted Critical
Publication of DE3635985C1 publication Critical patent/DE3635985C1/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A01D34/661—Mounting means
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B73/00—Means or arrangements to facilitate transportation of agricultural machines or implements, e.g. folding frames to reduce overall width
    • A01B73/02—Folding frames
    • A01B73/04—Folding frames foldable about a horizontal axis
    • A01B73/042—Folding frames foldable about a horizontal axis specially adapted for actively driven implements

Abstract

The front-mounted mowing unit consists of four mowing drums, whilst a middle piece, which also serves for mounting on the tractor, receives the middle two rigidly connected mowing drums. Mowing elements drawn in an articulated manner and forwards in a V-shaped manner are arranged on the left and right, respectively, of the middle piece and can be swung up for transport. Automatic transport locking takes place in the uppermost position of the outer drums. The drive is via V-belts which slacken automatically during the swing-up. The outer mowing drums of smaller diameter have an overlap or an intersection relative to those respectively adjacent to them, so that they can adapt to unevenness of the ground. The swath flow takes place from the outside of the front towards the middle and rearwards by means of the two middle mowing drums rotating in opposition. There is no need for any swath formers or swath plates behind the mowing drums, and it is consequently possible to mount very close to the tractor.

Description

Die Erfindung betrifft eine Verriegelungseinrichtung, insbesondere für Mähmaschinen im Frontanbau, nach dem Oberbegriff des Patent­ anspruchs 1.The invention relates to a locking device, in particular for front-mounted mowers, according to the generic term of the patent claim 1.

Bekannte Mähmaschinen dieser Art nach der DE-OS 24 26 209 be­ stehen aus einem mittleren Tragbalken, an dessen äußeren Enden je ein Tragbalken mit zwei Mähtrommeln höhenbeweglich angelenkt ist. Die Drehrichtung der zwei an einem Tragbalken angebrachten Mähtrommeln erfolgt gegensinnig, so daß sich drei nebeneinander liegende Mähschwaden ergeben. Da diese Mähmaschine keinen Mittel­ schwad erzeugt und nur zum Mähen von Großflächen gedacht ist, kann sie nicht zum Mähen und Laden in einem Arbeitsgang benutzt werden. An der Oberseite der Tragbalken befinden sich zur Festlegung in einer Transportlage mechanische Riegel, die über Seilzüge oder andere Verbindungen gelöst werden.Known mowers of this type according to DE-OS 24 26 209 be stand from a central support beam at its outer ends one supporting beam each with two mowing drums articulated in height is. The direction of rotation of the two attached to a support beam Mowing drums are made in opposite directions, so that three are side by side lying mowing swaths result. Because this mower has no means swaths and is only intended for mowing large areas they are not used for mowing and loading in one operation. On the top of the support beams there are mechanical bolts for fixing in a transport position, which can be solved using cables or other connections.

Ausgehend von dem eingangs genannten Stand der Technik gemäß der DE-OS 24 26 209 liegt der Erfindung die Aufgabe zugrunde, die Mähmaschine so zu gestalten, daß die Transportstellung der außen angelenkten Tragbalken selbsttätig und ohne Zwischenschaltung von Seilzügen o. dgl. ver- und entriegelt werden kann.Based on the prior art mentioned at the outset according to DE-OS 24 26 209 the object of the invention is the mower to be designed so that the transport position of the externally articulated support beams automatically and without the interposition of cables or the like can be locked and unlocked.

Die Aufgabe wird gemäß der Erfindung nach den kennzeichnenden Merkmalen des Patentanspruchs 1 gelöst.The object is according to the invention according to the characterizing Features of claim 1 solved.

Zur Betätigung der Verriegelungseinrichtung wird nur ein einfach­ wirkender hydraulischer Anschluß benötigt, der ausschließlich durch die Schlepper-Hydraulikeinrichtung betätigbar ist.To operate the locking device is only a simple Acting hydraulic connection needed only can be actuated by the tractor hydraulic device.

Bei Transportfahrten kann nichts ausgeschlagen werden, da im verriegelten Zustand eine Druckfeder den Rastbolzen spielfrei zum Riegel andrückt. Nothing can be knocked out during transport trips, as in locked state a compression spring the locking pin free of play presses down.  

Vorteilhafte Ausgestaltungen der Verriegelungseinrichtung sind in den Unteransprüchen gekennzeichnet.Advantageous configurations of the locking device are characterized in the subclaims.

Eine Ausführungsform der erfindungsgemäßen Mähmaschine wird im folgenden anhand der Zeichnungen näher erläutert. Es zeigtAn embodiment of the mower according to the invention is in following explained with reference to the drawings. It shows

Fig. 1 den mittleren Tragbalken (12) mit einer Gegenaufnahme für eine Ein­ phasenschnellkupplung (19) und die äußeren, um je eine horizontale Achse schwenkbaren Tragbalken (11), die zur Bodenanpassung in Arbeits­ stellung links bzw. in der zum Transport hochgeklappten Stellung rechts dargestellt sind. Dabei bewirkt die horizontale Schwenkachse (14) gegenüber der parallel versetzt angeordneten Antriebsachse (16) des Riemenantriebs beim Hochklappen eine automatische Ab­ schaltung. Fig. 1, the central support beam ( 12 ) with a counter receptacle for a quick-action coupling ( 19 ) and the outer, each pivotable about a horizontal axis support beam ( 11 ), the ground adjustment in the working position on the left or in the folded up position for transport on the right are shown. The horizontal swivel axis ( 14 ) with respect to the parallel offset drive axis ( 16 ) of the belt drive when folded up automatically switches off.

Eine speziell angelenkte Spannrolle (17) hat die Aufgabe, im unteren Schwenkbereich (Arbeitsstellung) für eine gleichmäßige Riemen­ spannung zu sorgen.A specially articulated tensioning roller ( 17 ) has the task of ensuring an even belt tension in the lower swivel range (working position).

Fig. 2 zeigt eine vergrößerte Seitenansicht der Verriegelungseinrichtung (13), die am mittleren Tragbalken (12) befestigt ist. Bei Aufklappen der äußeren Tragbalken (11) befindet sich der Riegel (1) in geöffneter Stel­ lung (strichlierte Linien). Kurz hinter dem Rastbolzen (9) befindet sich am äußeren Tragbalken eine Druckplatte, die gegen die Kraft einer Druckfeder (7), einen Vorschubbolzen (8) und einen Winkelhebel (5) sowie schließlich eine Klinke (6) betätigt, die wiederum über einen der acht Mitnehmerbolzen (4) die Segmentscheibe (3) um 45° verdreht. Der mit einer Feder (10) vorgespannte Riegel (1) springt nach unten. Der Rastbolzen (9) befindet sich momentan in der Stellung A, die Druckfeder (7) ist zusammengedrückt. Fig. 2 shows an enlarged side view of the locking device ( 13 ) which is attached to the central support beam ( 12 ). When the outer support beams ( 11 ) are opened, the bolt ( 1 ) is in the open position (dashed lines). Shortly behind the locking pin ( 9 ) is a pressure plate on the outer support beam, which operates against the force of a compression spring ( 7 ), a feed pin ( 8 ) and an angle lever ( 5 ) and finally a pawl ( 6 ), which in turn operates via one of the eight drive pins ( 4 ) rotated the segment disc ( 3 ) by 45 °. The bolt ( 1 ) pretensioned with a spring ( 10 ) jumps down. The locking pin ( 9 ) is currently in position A , the compression spring ( 7 ) is compressed.

Nun wird die Steuerung der Schlepper-Hydraulikeinrichtung in Stellung "Senken" gebracht, wobei die Druck­ feder (7) den Rastbolzen (9) in Stellung B drückt, so daß dieser gegen Feder­ druck verriegelt ist.Now the control of the tractor hydraulic device is brought into the "lowering" position, the pressure spring ( 7 ) pushing the locking pin ( 9 ) into position B so that it is locked against spring pressure.

Beim Abklappen wird zunächst Druck im System der Klapp­ zylinder aufgebaut, so daß der Rastbolzen (9) gegen die Feder (7) in Stellung A gebracht wird. Dabei wird über die Teile (8), (5) und (6) die Segmentscheibe (3) um 45° weitergedreht und der Riegel (1) über die Rolle (2) nach oben gedrückt. Der nunmehr entriegelte Tragbalken kann abgeklappt werden.When folding down, pressure is first built up in the system of the folding cylinder, so that the locking pin ( 9 ) is brought into position A against the spring ( 7 ). The segment disc ( 3 ) is rotated further by 45 ° via parts ( 8 ), ( 5 ) and ( 6 ) and the bolt ( 1 ) is pressed upwards over the roller ( 2 ). The now unlocked support beam can be folded down.

Um die Segmentscheibe (3) gegen unkontrolliertes Verdrehen zu sichern, ist diese mit einer über eine Tellerfe­ der leicht vorgespannte Reibscheibe (11) zusätzlich gesichert.To secure the segment disc ( 3 ) against uncontrolled twisting, it is additionally secured with a slightly pre-tensioned friction disc ( 11 ) using a plate spring.

Claims (4)

1. Verriegelungseinrichtung, insbesondere für Mähmaschinen im Frontanbau, bestehend aus einem mittleren Tragbalken (12) und je einem an dessen Enden angelenkten äußeren Tragbalken (11), die um je eine horizontale Achse (14) in eine Transportlage hochschwenkbar sind, in der die Tragbalken (11) durch die Ver­ riegelungseinrichtung (13) festlegbar sind, dadurch gekennzeich­ net, daß die Verriegelungseinrichtung (13) aus einem Schrittschalt­ werk (3 bis 8) besteht, das ausschließlich durch die Schlepper- Hydraulikeinrichtung betätigbar ist, wobei je ein Rastbolzen (9) an den äußeren Tragbalken (11) angeordnet ist, der mit einem am mittleren Tragbalken (12) angebrachten, durch das Schritt­ schaltwerk (3 bis 8) betätigten Riegel (1) zusammenwirkt.1. Locking device, in particular for mowers in the front attachment, consisting of a central support beam ( 12 ) and one each at the ends of the outer support beam ( 11 ) which can be swiveled up around a horizontal axis ( 14 ) in a transport position in which the support beam (11) Reset of means by the Ver (13) are fixed, characterized net gekennzeich that the locking means (13) factory of a stepper (3 to 8), which is operable only by the tractor hydraulic device, with one locking bolt (9 ) is arranged on the outer support beam ( 11 ) which cooperates with a bolt ( 1 ) which is attached to the central support beam ( 12 ) and is actuated by the step switching mechanism ( 3 to 8 ). 2. Verriegelungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die äußeren Tragbalken (11) jeweils durch einen Riemenan­ trieb (15) antreibbar sind, dessen im Bereich des mittleren Trag­ balkens (12) liegende Riemenscheibenachse (16) im Abstand paral­ lel zur horizontalen Achse (14) angeordnet ist.2. Locking device according to claim 1, characterized in that the outer support beam ( 11 ) each driven by a Riemenan ( 15 ) can be driven, in the region of the central support beam ( 12 ) lying pulley axis ( 16 ) at a distance parallel to the horizontal axis ( 14 ) is arranged. 3. Verriegelungseinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß am äußeren Tragbalken (11) eine Spannrolle (17) am mittleren Tragbalken (12) ein mit dieser zusammenwirkender Federspanner (18) angeordnet ist.3. Locking device according to claim 2, characterized in that on the outer support beam ( 11 ) a tensioning roller ( 17 ) on the central support beam ( 12 ) a spring tensioner ( 18 ) cooperating therewith is arranged. 4. Verriegelungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß am mittleren Tragbalken (12) eine Gegenaufnahme (19) für eine Einphasenschnellkupplung zur Verbindung mit der Schlepperhebeein­ richtung vorgesehen ist.4. Locking device according to claim 1, characterized in that a counter receptacle ( 19 ) for a single-phase quick coupling for connection to the Schlepperhebeein direction is provided on the central support beam ( 12 ).
DE19863635985 1986-10-23 1986-10-23 Locking device Expired DE3635985C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863635985 DE3635985C1 (en) 1986-10-23 1986-10-23 Locking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863635985 DE3635985C1 (en) 1986-10-23 1986-10-23 Locking device

Publications (1)

Publication Number Publication Date
DE3635985C1 true DE3635985C1 (en) 1988-08-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863635985 Expired DE3635985C1 (en) 1986-10-23 1986-10-23 Locking device

Country Status (1)

Country Link
DE (1) DE3635985C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333109A1 (en) * 1988-03-15 1989-09-20 Maschio S.P.A. Farm machine for tilling land
DE3937110A1 (en) * 1989-11-07 1991-05-08 Wiedenmann Gmbh Tractor-mounted lawn-mower - has middle unit and swivelable side units
DE4108449A1 (en) * 1991-03-15 1992-09-17 Krone Bernhard Gmbh Maschf MOWER

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426209A1 (en) * 1973-06-14 1975-01-09 Zweegers P AGRICULTURAL MACHINE
DE2703043A1 (en) * 1977-01-26 1978-07-27 Krone Bernhard Gmbh Maschf Vertical drum rotary mower - has larger dia. outer drum which is adjustable to desired working width
DE3418352A1 (en) * 1984-05-17 1986-01-09 Max 8951 Baisweil Hölzle Appliance for raking together fodder, especially for front mounting on a tractor
DE3441387A1 (en) * 1984-11-13 1986-05-22 Erwin 8091 Emmering Niedermeier Mowing apparatus
DE3501123A1 (en) * 1985-01-15 1986-07-17 Klöckner-Humboldt-Deutz AG Zweigniederlassung Fahr, 7702 Gottmadingen ROTARY MOWER

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426209A1 (en) * 1973-06-14 1975-01-09 Zweegers P AGRICULTURAL MACHINE
DE2703043A1 (en) * 1977-01-26 1978-07-27 Krone Bernhard Gmbh Maschf Vertical drum rotary mower - has larger dia. outer drum which is adjustable to desired working width
DE3418352A1 (en) * 1984-05-17 1986-01-09 Max 8951 Baisweil Hölzle Appliance for raking together fodder, especially for front mounting on a tractor
DE3441387A1 (en) * 1984-11-13 1986-05-22 Erwin 8091 Emmering Niedermeier Mowing apparatus
DE3501123A1 (en) * 1985-01-15 1986-07-17 Klöckner-Humboldt-Deutz AG Zweigniederlassung Fahr, 7702 Gottmadingen ROTARY MOWER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333109A1 (en) * 1988-03-15 1989-09-20 Maschio S.P.A. Farm machine for tilling land
DE3937110A1 (en) * 1989-11-07 1991-05-08 Wiedenmann Gmbh Tractor-mounted lawn-mower - has middle unit and swivelable side units
DE4108449A1 (en) * 1991-03-15 1992-09-17 Krone Bernhard Gmbh Maschf MOWER
DE4108449C2 (en) * 1991-03-15 1993-04-01 Maschinenfabriken Bernard Krone Gmbh, 4441 Spelle, De

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee