DE3742864A1 - Knife with constant cutting sharpness - Google Patents
Knife with constant cutting sharpnessInfo
- Publication number
- DE3742864A1 DE3742864A1 DE19873742864 DE3742864A DE3742864A1 DE 3742864 A1 DE3742864 A1 DE 3742864A1 DE 19873742864 DE19873742864 DE 19873742864 DE 3742864 A DE3742864 A DE 3742864A DE 3742864 A1 DE3742864 A1 DE 3742864A1
- Authority
- DE
- Germany
- Prior art keywords
- knife
- blade
- base body
- cutting edges
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Knives (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Messer, insbesondere für landwirtschaftlich genutzte Schneidvorrichtungen, bei dem die Messerklinge im gesamten Abnutzungsbereich aus schließlich die Dicke der Schneidkante aufweist und an einem Messergrundkörper befestigt ist.The invention relates to a knife, in particular for agricultural cutting devices, at the knife blade in the entire area of wear finally has the thickness of the cutting edge and on a knife base is attached.
Der Nachteil geschliffener Schneidkanten besteht vor allem darin, daß deren Standzeiten relativ gering sind.The disadvantage of ground cutting edges is above all in that their downtimes are relatively short.
Dies hat dazu geführt, daß man z. B. bei rotierenden Mäh werken die Messerklingen wegen des Aufwands nicht nach schärft, sondern gegen neue Messerklingen austauscht.This has resulted in z. B. with rotating mower do not rework the knife blades because of the effort sharpens, but exchanged for new knife blades.
Die der Erfindung zugrundeliegende Aufgabe besteht da rin, ein Messer, insbesondere für landwirtschaftlich ge nutzte Schneidvorrichtungen so zu gestalten, daß die Stand zeiten erhöht werden und ein An- oder Nachschleifen der Schneidkanten nicht erforderlich ist.The object underlying the invention is there rin, a knife, especially for agricultural purposes used cutting devices so that the stand times are increased and the grinding or regrinding of the Cutting edges are not required.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß auf grund konstanter Materialdicke der Messerklinge im Abnutz ungsbereich die Schneidkantendicke auch bei fortschreiten der Abnutzung erhalten bleibt.This object is achieved in that due to constant material thickness of the knife blade in wear the cutting edge thickness even if it progresses wear remains.
Vorteilhafte bauliche Ausgestaltungen des erfindungsgemä ßen Messers sind den Ansprüchen 1 bis 14 zu entnehmen.Advantageous structural designs of the invention ß knife can be found in claims 1 to 14.
Ausführungsbeispiele der Erfindung sind in Zeichnungen dar gestellt und im folgenden näher beschrieben. Dabei zeigt.Embodiments of the invention are shown in drawings provided and described in more detail below. It shows.
Fig. 1 ein Rasenmähermesser mit Messerklingen gemäß der Er findung in perspektivischer Ansicht, Fig. 1 is a lawn mower with knife blades in accordance with the He invention in perspective view;
Fig. 2 und 3 jeweils eine Schnittdarstellung gemäß der Schnittlinie A-B in Fig. 1. Figs. 2 and 3 each show a sectional view according to the section line AB in FIG. 1.
In Fig. 1 bestehen die Stützelemente 3 aus Unterlegscheiben. Die Messerklinge 1 ist hierbei auf der Oberseite des Messer grundkörpers 4 angeordnet.In Fig. 1, the support elements 3 consist of washers. The knife blade 1 is arranged on the top of the knife base body 4 .
Beim Ausführungsbeispiel nach Fig. 2 bestehen die Verbindungs elemente 2 aus Schrauben mit Muttern, die Stützelemente 3 aus Profilleisten.In the embodiment of FIG. 2, the connecting elements 2 consist of screws with nuts, the support elements 3 from profile strips.
Die Messerklinge 1 ist hierbei zwischen Ober- und Untersei te des Messergrundkörpers 4 angeordnet.The knife blade 1 is arranged between the upper and lower te of the knife base body 4 .
Beim Ausführungsbeispiel nach Fig. 3 bestehen die Verbin dungselemente 2 aus Nieten, die Stützelemente 3 aus Profil leisten.In the embodiment of FIG. 3, the connec tion elements 2 made of rivets, the support elements 3 made of profile.
Die Messerklinge 1 ist hierbei zwischen Ober- und Untersei te des Messergrundkörpers 4 angeordnet. Die Messerklinge 1 besteht aus einem dünnem Blech höherer Festigkeit (z. B. Federstahlblech), das eben ausgebildet ist.The knife blade 1 is arranged between the upper and lower te of the knife base body 4 . The knife blade 1 consists of a thin sheet of higher strength (e.g. spring steel sheet), which is flat.
Die Messerklinge 1 ist mittels Verbindungselementen 2 und Stützelementen 3 am Messergrundkörper 4 befestigt und im Arbeitsbereich d. h. im äußeren Rotationsdurchmesserbe reich des Messers angeordnet.The knife blade 1 is fastened to the knife base body 4 by means of connecting elements 2 and supporting elements 3 and is arranged in the working area ie in the outer rotation diameter region of the knife.
Die Anbringung der Messerklinge ist sowohl auf der Obersei te wie auch auf der Unterseite oder zwischen Ober- und Un terseite (siehe Fig. 1 bis 3) des Messergrundkörpers möglich. Der Überstand der Messerklinge in Arbeitsrichtung des Mes sers bewirkt in Verbindung mit der konstanten Messerklin gendicke die erfindungsgemäße Aufgabenlösung.The attachment of the knife blade is possible both on the upper side and on the lower side or between the upper and lower side (see FIGS . 1 to 3) of the basic body of the knife. The protrusion of the knife blade in the working direction of the knife causes the task solution according to the invention in conjunction with the constant knife blade thickness.
Da der Messergrundkörper bei dem Arbeitsvorgang des Schnei dens spezifisch geringer belastet wird als die Messerklinge, kann er im Vergleich zu dieser aus kostengünstigerem Flach stahlmaterial hergestellt werden.Since the knife body during the cutting operation which is loaded less specifically than the knife blade, it can compare to this from cheaper flat steel material are manufactured.
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873742864 DE3742864A1 (en) | 1987-12-17 | 1987-12-17 | Knife with constant cutting sharpness |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873742864 DE3742864A1 (en) | 1987-12-17 | 1987-12-17 | Knife with constant cutting sharpness |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3742864A1 true DE3742864A1 (en) | 1989-07-27 |
Family
ID=6342873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873742864 Ceased DE3742864A1 (en) | 1987-12-17 | 1987-12-17 | Knife with constant cutting sharpness |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3742864A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29714754U1 (en) * | 1997-08-18 | 1997-10-09 | Inotec GmbH Maschinenentwicklung u. Vertrieb, 72770 Reutlingen | Rotatable knife for cutting sausages |
EP2825354B1 (en) | 2012-03-14 | 2017-09-06 | GEA Food Solutions Germany GmbH | Cutting blade with means for producing an airstream |
CN109819646A (en) * | 2016-09-27 | 2019-05-28 | 苏州宝时得电动工具有限公司 | Grass trimmer and its blade |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE506076C (en) * | 1930-09-10 | Ernst Vollmann | Cutting tool for cheese and slicing machines |
-
1987
- 1987-12-17 DE DE19873742864 patent/DE3742864A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE506076C (en) * | 1930-09-10 | Ernst Vollmann | Cutting tool for cheese and slicing machines |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29714754U1 (en) * | 1997-08-18 | 1997-10-09 | Inotec GmbH Maschinenentwicklung u. Vertrieb, 72770 Reutlingen | Rotatable knife for cutting sausages |
EP2825354B1 (en) | 2012-03-14 | 2017-09-06 | GEA Food Solutions Germany GmbH | Cutting blade with means for producing an airstream |
CN109819646A (en) * | 2016-09-27 | 2019-05-28 | 苏州宝时得电动工具有限公司 | Grass trimmer and its blade |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |