DE10036552A1 - Mounting for rotary mower blade comprises vertical bolt which passes through bore in blade, cutter disk being mounted on bolt above blade and leaf spring pressing against lower face of bolt to hold cutter blade in place - Google Patents
Mounting for rotary mower blade comprises vertical bolt which passes through bore in blade, cutter disk being mounted on bolt above blade and leaf spring pressing against lower face of bolt to hold cutter blade in placeInfo
- Publication number
- DE10036552A1 DE10036552A1 DE10036552A DE10036552A DE10036552A1 DE 10036552 A1 DE10036552 A1 DE 10036552A1 DE 10036552 A DE10036552 A DE 10036552A DE 10036552 A DE10036552 A DE 10036552A DE 10036552 A1 DE10036552 A1 DE 10036552A1
- Authority
- DE
- Germany
- Prior art keywords
- leaf spring
- blade
- bolt
- disc
- knife blade
- 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.)
- Withdrawn
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
- A01D34/73—Cutting apparatus
- A01D34/733—Cutting-blade mounting means
-
- 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
- A01D34/73—Cutting apparatus
- A01D34/736—Flail type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Messerklingenbefestigung für Kreiselmähwerke nach dem Oberbegriff der Patentanmeldung DE-199 53 422.5.The invention relates to a knife blade attachment for rotary mowers according to the preamble of the patent application DE-199 53 422.5.
Bei gleicher Aufgabenstellung wie dort wird eine weitere Lö sungsmöglichkeit aufgezeigt, wie eine über einen Tragbolzen gestülpte Messerklinge in Betriebsstellung festgehalten werden kann. Zu diesem Zweck ist eine mit der Mähscheibe festverbun dene Blattfeder oder dergleichen vorgesehen, die sich in der Betriebsstellung unter Vorspannung gegen die untere Stirnflä che des Tragbolzens derart anlegt, daß die Stirnfläche minde stens teilweise überdeckt wird, wodurch die Messerklinge zwi schen der Mähscheibe und der Blattfeder unverlierbar festge halten wird.With the same task as there is another Lö solution shown, like one with a support bolt the folded knife blade are held in the operating position can. For this purpose, one is firmly connected to the mower disc dene leaf spring or the like provided, which is in the Operating position under tension against the lower end face che of the support bolt so that the end face minde is at least partially covered, whereby the knife blade between between the mower disc and the leaf spring will hold.
In den Ansprüchen 2-4 ist aufgezeigt in welcher Weise die Blattfeder gelüftet werden kann um einen Wechsel der Messerklin ge zu ermöglichen.In the claims 2-4 is shown in what way Leaf spring can be released by changing the knife clinic to enable ge.
In den Ansprüchen 5-7 wird eine zusätzliche Sicherheitsvor richtung aufgezeigt, die auch unter erschwerten Bedingungen sicherstellt, daß sich die Messerklinge nicht unbeabsichtigt von dem Tragbolzen lösen kann.In claims 5-7, an additional security direction shown, even under difficult conditions ensures that the knife blade does not accidentally move can loosen from the support bolt.
Die Erfindung wird an Hand einer Zeichnung beispielsweise erläutert. Die Zeichnung zeigt eine Messerklingenbefestigung für ein Scheibenmähwerk in einem vertikalen Schnitt.The invention is based on a drawing, for example explained. The drawing shows a knife blade attachment for a disc mower in a vertical section.
Eine Mähscheibe 1 ist an einer Nabe 18 befestigt und läuft mit dieser um. Nahe ihrem Umfang hat die Mähscheibe 1 eine Bohrung 19 und eine Ansenkung 20. Mittels einer Schraube 21 ist ein Tragbolzen 22 fest mit der Mähscheibe 1 verschraubt.A mower disc 1 is attached to a hub 18 and rotates with it. The mower disc 1 has a bore 19 and a countersink 20 near its circumference. A support bolt 22 is firmly screwed to the mower disc 1 by means of a screw 21 .
Ebenfalls mit der Nabe 18 ist eine kräftige Blattfeder 23 fest verbunden. Sie legt sich mit ihrem freien Ende 24 unter Vorspannung an die untere Stirnfläche 25 des Tragbolzens 22 an. Die Nabe 18 ist in nicht dargestellter Weise dreh- und antreibbar mit dem nur angedeudeten Mähbalken 26 verbunden. A strong leaf spring 23 is also firmly connected to the hub 18 . With its free end 24 , it bears against the lower end face 25 of the supporting bolt 22 under prestress. The hub 18 is rotatably and drivably connected to the cutting bar 26 , which is only indicated, in a manner not shown.
Auf dem Tragbolzen 22 ist eine Messerklinge 7 frei drehbar gelagert.On the support pin 22 , a knife blade 7 is freely rotatable.
Die Mähscheibe 1 besitzt eine von oben her angesenkte Boh rung 27, die in radialer Richtung der Mähscheibe in einen Schlitz 28 übergeht. Zum Lüften der Blattfeder 23 ist ein doppelarmiger, hakenförmiger Handhebel 29 vorgesehen, der einen langen, als Handgriff vorgesehenen Arm 30 und einen kurzen, als Druckstück benutzten Arm 31 besitzt. In der Beuge zwischen dem langen Arm 30 und dem kurzen Arm 31 durchsetzt ein Spannstift 32 den Handhebel 29. Zum Ein führen des Handhebels 29 wird dieser in einer Stellung, die senkrecht zur Papierebene ist, mit dem kurzen Arm 31 und dem Spannstift 32 durch die Bohrung 27 und den Schlitz 28 eingeführt und danach in die gezeichnete Stellung geklappt. Wenn der Handhebel 29 jetzt in Richtung des Pfeiles A ver schwenkt wird, legt sich der Spannstift 32 gegen die Unter seite der Mähscheibe 1 und der kurze Arm 31 drückt gegen die Oberseite der Blattfeder 23, wodurch sich deren freies Ende 24 von der Stirnseite 25 des Tragbolzens 22 abhebt.The mower disc 1 has a countersunk Boh tion 27 , which merges into a slot 28 in the radial direction of the mower disc. To release the leaf spring 23 , a double-armed, hook-shaped hand lever 29 is provided, which has a long arm 30 provided as a handle and a short arm 31 used as a pressure piece. In the bend between the long arm 30 and the short arm 31 , a roll pin 32 passes through the hand lever 29 . To lead the hand lever 29 this is inserted in a position that is perpendicular to the plane of the paper, with the short arm 31 and the spring pin 32 through the bore 27 and the slot 28 and then folded into the position shown. If the hand lever 29 is now pivoted in the direction of arrow A ver, the roll pin 32 lays against the underside of the mower disc 1 and the short arm 31 presses against the top of the leaf spring 23 , whereby the free end 24 thereof from the end face 25 of the Lifting pin 22 lifts off.
An der Unterseite der Mähscheibe 1 ist eine Sicherungsklinke 33 pendelbar aufgehängt. An ihrem freien Ende hat sie eine hakenförmige Nase 34 und zwischen Aufhängung und Nase 34 ei nen vorspringenden Ansatz 35, der zu ihrer Steuerung dient. Mit ihrem unteren Teil und der Nase 34 durchsetzt die Sicher ungsklinke 33 einen Schlitz 36 in der Blattfeder 23. Durch eine nicht dargestellte Feder wird die Sicherungsklinke 33 so gegen die vordere Begrenzung des Schlitzes 36 gedrückt, daß die Nase 34 die Blattfeder 23 untergreift und so form schlüssig mit ihr verbunden wird. Im Betrieb auftretende große Fliehkräfte unterstützen die Wirkung der Feder. Der vorspringende Ansatz 35 steht beim Messerwechsel in Wirkver bindung mit dem kurzen Arm 31 des Handhebels 29, derart, daß bei Betätigung des Handhebels 29 in Richtung des Pfeiles A zuerst die Sicherungsklinke 33 aus der Rastverbindung mit der Blattfeder 23 herausgedrückt wird und dann erst Druck auf die Blattfeder 23 ausgeübt wird.On the underside of the mower disc 1 , a locking pawl 33 is suspended. At its free end it has a hook-shaped nose 34 and between the suspension and nose 34 egg nen projecting projection 35 , which is used for their control. With its lower part and the nose 34 , the securing pawl 33 penetrates a slot 36 in the leaf spring 23 . By a spring, not shown, the locking pawl 33 is pressed against the front boundary of the slot 36 in such a way that the nose 34 engages under the leaf spring 23 and is positively connected to it. Large centrifugal forces occurring during operation support the action of the spring. The projecting approach 35 is connected to the short arm 31 of the hand lever 29 when changing the knives in such a way that, when the hand lever 29 is actuated in the direction of arrow A, the locking pawl 33 is first pushed out of the latching connection with the leaf spring 23 and only then is pressure applied the leaf spring 23 is exerted.
Die Sicherungswirkung kann auch durch andere als die darge stellten Mittel bewirkt werden, bei denen die Verbindung im Stillstand aufgehoben werden kann.The hedging effect can also be other than the Darge provided means are effected in which the connection in Standstill can be canceled.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10036552A DE10036552A1 (en) | 2000-07-27 | 2000-07-27 | Mounting for rotary mower blade comprises vertical bolt which passes through bore in blade, cutter disk being mounted on bolt above blade and leaf spring pressing against lower face of bolt to hold cutter blade in place |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10036552A DE10036552A1 (en) | 2000-07-27 | 2000-07-27 | Mounting for rotary mower blade comprises vertical bolt which passes through bore in blade, cutter disk being mounted on bolt above blade and leaf spring pressing against lower face of bolt to hold cutter blade in place |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10036552A1 true DE10036552A1 (en) | 2002-02-07 |
Family
ID=7650373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10036552A Withdrawn DE10036552A1 (en) | 2000-07-27 | 2000-07-27 | Mounting for rotary mower blade comprises vertical bolt which passes through bore in blade, cutter disk being mounted on bolt above blade and leaf spring pressing against lower face of bolt to hold cutter blade in place |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10036552A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2198686A1 (en) * | 2008-12-19 | 2010-06-23 | Andreas Stihl AG & Co. KG | Work device |
EP2727450A1 (en) * | 2012-11-02 | 2014-05-07 | CNH Industrial Belgium nv | Knife connector for quick-change knives on a disc mower |
CN105979767A (en) * | 2014-02-03 | 2016-09-28 | 胡斯华纳有限公司 | The claimed invention concerns a plate spring adapted to hold a tool, a tool, a tool holder, a robotic work tool and a robotic working tool system |
EP3081064A1 (en) * | 2015-04-17 | 2016-10-19 | Maschinenfabrik Bernard Krone GmbH & Co. KG | Auxiliary device for knife change on agricultural grass-cutter mowing machines |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1998720U (en) * | 1968-03-09 | 1968-12-19 | Fella Werke G M B H Fa | DEVICE FOR FASTENING KNIFE BLADES, ESPECIALLY FOR A ROTARY MOWING MILL. |
DE2612381A1 (en) * | 1976-03-24 | 1977-10-06 | Bautz Gmbh Josef | Rotary mower with vertical pivot axle - has cutter disc and sprung attachments for cutter blades on underneath side, fixed by bolts and stiffening pieces |
DE2900448A1 (en) * | 1979-01-08 | 1980-07-24 | Krone Bernhard Gmbh Maschf | Rotary mower cutter mechanism - has blade turning on eccentric rotating on mounting bolt and locked by plate spring |
-
2000
- 2000-07-27 DE DE10036552A patent/DE10036552A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1998720U (en) * | 1968-03-09 | 1968-12-19 | Fella Werke G M B H Fa | DEVICE FOR FASTENING KNIFE BLADES, ESPECIALLY FOR A ROTARY MOWING MILL. |
DE2612381A1 (en) * | 1976-03-24 | 1977-10-06 | Bautz Gmbh Josef | Rotary mower with vertical pivot axle - has cutter disc and sprung attachments for cutter blades on underneath side, fixed by bolts and stiffening pieces |
DE2900448A1 (en) * | 1979-01-08 | 1980-07-24 | Krone Bernhard Gmbh Maschf | Rotary mower cutter mechanism - has blade turning on eccentric rotating on mounting bolt and locked by plate spring |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2198686A1 (en) * | 2008-12-19 | 2010-06-23 | Andreas Stihl AG & Co. KG | Work device |
EP2727450A1 (en) * | 2012-11-02 | 2014-05-07 | CNH Industrial Belgium nv | Knife connector for quick-change knives on a disc mower |
CN105979767A (en) * | 2014-02-03 | 2016-09-28 | 胡斯华纳有限公司 | The claimed invention concerns a plate spring adapted to hold a tool, a tool, a tool holder, a robotic work tool and a robotic working tool system |
EP3102021A4 (en) * | 2014-02-03 | 2017-07-19 | Husqvarna AB | The claimed invention concerns a plate spring adapted to hold a tool, a tool, a tool holder, a robotic work tool and a robotic working tool system |
US10172282B2 (en) | 2014-02-03 | 2019-01-08 | Husqvarna Ab | Plate spring adapted to hold a tool, a tool, a tool holder, a robotic work tool and a robotic working tool system |
EP3081064A1 (en) * | 2015-04-17 | 2016-10-19 | Maschinenfabrik Bernard Krone GmbH & Co. KG | Auxiliary device for knife change on agricultural grass-cutter mowing machines |
EP3081064B1 (en) | 2015-04-17 | 2020-02-26 | Maschinenfabrik Bernard Krone GmbH & Co. KG | Auxiliary device for knife change on agricultural grass-cutter mowing machines |
EP3081064B2 (en) † | 2015-04-17 | 2023-08-23 | Maschinenfabrik Bernard Krone GmbH & Co. KG | Auxiliary device for knife change on agricultural grass-cutter mowing machines |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8180 | Miscellaneous part 1 |
Free format text: IN DER ZUSAMMENFASSUNG (57) ZEILE 2, UND ZEILE 7 "MAEHMASCHINE (1)" AENDERN IN "MAEHSCHEIBE (1)" PATENTANSPRUCH 6, SPALTE 2, ZEILE 67 FEHLT DIE BEZUGSZAHL "1" |
|
8139 | Disposal/non-payment of the annual fee |