DE673290C - Tool blade for tillage devices, especially spades - Google Patents

Tool blade for tillage devices, especially spades

Info

Publication number
DE673290C
DE673290C DEL93511D DEL0093511D DE673290C DE 673290 C DE673290 C DE 673290C DE L93511 D DEL93511 D DE L93511D DE L0093511 D DEL0093511 D DE L0093511D DE 673290 C DE673290 C DE 673290C
Authority
DE
Germany
Prior art keywords
spades
tool blade
tool
ground
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.)
Expired
Application number
DEL93511D
Other languages
German (de)
Inventor
Willi Kick
Dipl-Ing Dr-Ing Gustav Kirsch
Dr Med Gunther Lehmann
Dr-Ing Heinrich Vennewald
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.)
HEINRICH VENNEWALD DR ING
GUNTHER LEHMANN DR MED
GUSTAV KIRSCH DIPL ING DR ING
Original Assignee
HEINRICH VENNEWALD DR ING
GUNTHER LEHMANN DR MED
GUSTAV KIRSCH DIPL ING DR ING
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 HEINRICH VENNEWALD DR ING, GUNTHER LEHMANN DR MED, GUSTAV KIRSCH DIPL ING DR ING filed Critical HEINRICH VENNEWALD DR ING
Priority to DEL93511D priority Critical patent/DE673290C/en
Application granted granted Critical
Publication of DE673290C publication Critical patent/DE673290C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B1/00Hand tools

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Description

Die vorliegende Erfindung bezieht sich, auf blattförmige Bodenbearbeitungsgeräte, insbesondere auf Spaten, kann jedoch auch bei Schaufeln, Hacben, Bodenfräsern, Pfluggeräten u. dgl. Anwendung finden.The present invention relates to leaf-shaped tillage implements, especially on spades, can also be used with Shovels, Hacben, tillers, plowing devices and the like. Use.

Bei blattförmigen 'Bodenbearbeitungsgeräten weist das Blatt in der Regel praktisch parallele Flächen mit einer unteren zugeschärften Schneidkante auf. Beim Eintreiben eines solchen Werkzeuges in den Boden müssen in der Hauptsache zwei Widerstände, die das Eindringen des Werkzeuges in den Boden hemmen, überwunden werden. Der eine dieser Widerstände wirkt dem Vordringen der Schneidkante entgegen und kann als Stiriiwiderstand bezeichnet werden, der andane entsteht infolge der Reibung zwischen dem Boden und den parallelen Flächen des Werkzeugblattes. Der Erfindung liegt die Erkenntnis zugrunde, daß mit zunehmendem' Eindringen in den Boden der Reibungswiderstand beträchtlich mehr zunimmt als der an der Schneide wirbende Stirnwiderstand. Zweck der Erfindung ist es, durch entsprechende Formgebung das Werkzeug so auszubilden, daß beim Eintreiben des Blattes in den Boden der Reibungswiderstand verringert und damit die zu leistende Arbeit verkleinert wird.With leaf-shaped 'tillage implements the sheet usually has practically parallel surfaces with a lower sharpened one Cutting edge on. When driving such a tool into the ground Mainly two resistances that prevent the tool from penetrating the ground inhibit, be overcome. One of these resistances counteracts the penetration of the cutting edge and can act as a stir resistance the andane arises as a result of the friction between the Ground and the parallel surfaces of the tool blade. The invention lies in the knowledge based on the fact that with increasing 'penetration into the ground, the frictional resistance increases considerably more than the forehead resistance exerted on the cutting edge. purpose the invention is to design the tool by appropriate shaping, that when the sheet is driven into the ground, the frictional resistance is reduced and so that the work to be done is reduced.

Um dieses Ziel zu erreichen, ist es bekannt, zur Aufhebung bzw. Verminderung des Reibungswiderstandes der Blattfläcben die Schneide des Werkzeuges über die Stärke des Werkzeugblattes hinaus im Querschnitt pfeilspitzenförmig zu verdicken (s. Patent 629821). Diese an sich wirkungsvolle Maßnähme hat jedoch insofern einen Nachteil, als die Herstellung von Bodenbearbeitungsgeräten, insbesondere Spaten, in der angedeuteten Art nur unter verhältnismäßig großen technischen Schwierigkeiten möglich ist.To achieve this goal it is known to eliminate or reduce the frictional resistance of the leaf surfaces the cutting edge of the tool beyond the thickness of the tool blade in cross section to be thickened in the shape of an arrowhead (see patent 629821). These measures that are effective in themselves however, has a disadvantage in that the manufacture of tillage implements, especially spades, of the kind indicated only under relatively large ones technical difficulties is possible.

Eine wesentlich einfachere Lösung der Aufgabe, den Reibungswiderstand eines blattförmigen Werkzeuges beim Eindringen in den Boden zu verringern, wird nach der Erfindung dadurch 'erreicht, daß das Blatt« des Werkzeuges oberhalb seiner Schneide b zwei nach entgegengesetzten Seiten über die Blattoberflächen vorgewölbte Wellungen oder Kröpfungen c und d erhält. Beim Eindringen in den Boden erzeugen die Vorwölbungen vor und hinter dem Spatenblatt einen Luftspalt, so daß die Reibung zwischen Spaten und Boden aufgehoben oder doch stark herabgesetzt ist.A much simpler solution to the problem of reducing the frictional resistance of a blade-shaped tool when it penetrates the ground is achieved according to the invention in that the blade of the tool above its cutting edge b has two corrugations or bends c projecting on opposite sides over the blade surfaces and d receives. When penetrating the ground, the protrusions in front of and behind the spade blade create an air gap, so that the friction between the spade and the ground is eliminated or at least greatly reduced.

Claims (1)

Patentanspruch:Claim: Werkzeugblatt für Bodenbearbeitungsgeräte, insbesondere Spaten, dadurch gekennzeichnet, daß es oberhalb seiner Schneide zwei nach entgegengesetzten Seiten über die Blattoberfiächen vorgewölbte Wellungen oder Kröpfungen aufweist.Tool blade for tillage implements, in particular spades, characterized in that that there are two opposite sides above its cutting edge has protruding corrugations or crankings over the leaf surfaces. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEL93511D 1937-10-26 1937-10-26 Tool blade for tillage devices, especially spades Expired DE673290C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL93511D DE673290C (en) 1937-10-26 1937-10-26 Tool blade for tillage devices, especially spades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL93511D DE673290C (en) 1937-10-26 1937-10-26 Tool blade for tillage devices, especially spades

Publications (1)

Publication Number Publication Date
DE673290C true DE673290C (en) 1939-03-18

Family

ID=7287681

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL93511D Expired DE673290C (en) 1937-10-26 1937-10-26 Tool blade for tillage devices, especially spades

Country Status (1)

Country Link
DE (1) DE673290C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144041B (en) * 1960-06-10 1963-02-21 Lely Nv C Van Der Mouldboard of a plow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144041B (en) * 1960-06-10 1963-02-21 Lely Nv C Van Der Mouldboard of a plow

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