DE3921068A1 - Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades - Google Patents

Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades

Info

Publication number
DE3921068A1
DE3921068A1 DE3921068A DE3921068A DE3921068A1 DE 3921068 A1 DE3921068 A1 DE 3921068A1 DE 3921068 A DE3921068 A DE 3921068A DE 3921068 A DE3921068 A DE 3921068A DE 3921068 A1 DE3921068 A1 DE 3921068A1
Authority
DE
Germany
Prior art keywords
lawn mower
external rotor
motor
rotor motor
shaped blades
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
DE3921068A
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
ASSCHE VICTOR MARIA VAN
Original Assignee
ASSCHE VICTOR MARIA VAN
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 ASSCHE VICTOR MARIA VAN filed Critical ASSCHE VICTOR MARIA VAN
Priority to DE3921068A priority Critical patent/DE3921068A1/en
Publication of DE3921068A1 publication Critical patent/DE3921068A1/en
Ceased legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/42Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
    • A01D34/46Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders hand-guided by a walking operator
    • A01D34/47Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/475Driving mechanisms
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/42Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
    • A01D34/56Driving mechanisms for the cutters
    • A01D34/58Driving mechanisms for the cutters electric
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D2101/00Lawn-mowers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/42Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
    • A01D34/52Cutting apparatus
    • A01D34/53Helically shaped cutting members

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

The cylindrical electric external rotor motor (1), has built-on spiral shaped blades (2), which with the rotation of the external rotor motor rub against a stationary counter blade (3), and cut the grass from the lawn surface. USE/ADVANTAGE - Electric operated hand controlled lawn mower. Conventional hand mower cylinder can be replaced by cylindrical external rotor motor. Mowing with this type of motor fitted is easier than with hand lawnmower.

Description

Bekannt sind von menschlicher Kraft betriebene Handrasenmäher welche mittels eines Holmes (Fig. I, Nr. 8) den Handrasenmäher vorwärts bewegen. Durch die Vorwärtsbewegung rotieren die Antriebsräder (Fig. I, Nr. 6). Innen in den Antriebsrädern (Fig. I, Nr. 6) sind Zahnkränze (Fig. I, Nr. 7) vorhanden, welche die Ritzel (Fig. I, Nr. 4) antreiben. Diese Ritzel (Fig. I, Nr. 4) treiben über Mitnehmerkeile (Fig. I, Nr. 5) den Mäh-Schneidezylinder (Fig. I, Nr. 1) an. Dieser Mäh-Schneidezylinder ist ringsum versehen mit spiralförmigen Stahlmessern (Fig. I, Nr. 2). Bei der Rotierung des Mäh-Schneidezylinders (Fig. I, Nr. 1) reiben diese Stahl­ messer (Fig. I, Nr. 2) gegen ein feststehendes Gegenmesser (Fig. I, Nr. 3).Hand lawn mowers operated by human power are known which move the hand lawn mower forward by means of a spar ( Fig. I, No. 8 ). Due to the forward movement, the drive wheels rotate ( Fig. I, No. 6 ). Inside the drive wheels ( Fig. I, No. 6 ) there are sprockets ( Fig. I, No. 7 ) which drive the pinion ( Fig. I, No. 4 ). These pinions ( Fig. I, No. 4 ) drive the mowing-cutting cylinder ( Fig. I, No. 1 ) via driver wedges ( Fig. I, No. 5 ). This mowing-cutting cylinder is provided with spiral steel knives all around ( Fig. I, No. 2 ). When the mowing cutting cylinder ( Fig. I, No. 1 ) rotates, these steel knives ( Fig. I, No. 2 ) rub against a fixed counter knife ( Fig. I, No. 3 ).

Das Mähen mit einem herkömmlichen Handrasenmäher, wie oben beschrieben, ist deshalb beschwerlich, weil mittels mensch­ licher Kraftaufwendung der Mäh-Schneidezylinder (Fig. I, Nr. 1) in rotierender Bewegung gebracht werden muß.Mowing with a conventional manual lawn mower, as described above, is difficult because the mowing cutting cylinder ( Fig. I, No. 1 ) must be brought into rotating motion by means of human effort.

Die Erfindung soll hier Abhilfe schaffen. Statt mit mensch­ licher Kraftaufwendung, wie beim herkömmlichen Handrasenmäher, wird der Mäh-Schneidezylinder (Fig. II, Nr. 1) durch die Erfindung elektrisch betrieben. Nach der Erfindung wird der Mäh-Schneide­ zylinder (Fig. II, Nr. 1) durch einen Elektro-Außenläufermotor angetrieben.The invention is intended to remedy this. Instead of using human force, as in the conventional manual lawnmower, the mowing cutting cylinder ( Fig. II, No. 1 ) is operated electrically by the invention. According to the invention, the mowing-cutting cylinder ( Fig. II, No. 1 ) is driven by an electric external rotor motor.

Bei dem Außenläufer-Elektromotor steht, im Gegensatz zu den gebräuchlichen Elektromotoren bei den die Motorwelle rotiert, die Motorachse fest und es rotiert das Motorgehäuse um die Motorachse.The external rotor electric motor stands in contrast to the common electric motors in which the motor shaft rotates, the motor axis and it rotates the motor housing around the Motor axis.

Bei dieser Erfindung werden um das Gehäuse vom Außenläufer- Elektromotor (Fig. II, Nr. 1) spiralförmige Stahlmesser (Fig. II, Nr. 2) angebracht, welche gegen ein feststehendes Gegenmesser (Fig. II, Nr. 3) reiben und somit Gras von der Rasenfläche abschneiden.In this invention, around the housing of the external rotor electric motor ( Fig. II, No. 1 ) spiral steel knives ( Fig. II, No. 2 ) are attached, which rub against a fixed counter knife ( Fig. II, No. 3 ) and thus Cut grass off the lawn.

Durch den elektrischen Antrieb des Mäh-Schneidezylinders (Fig. II, Nr. 1) mittels eines Elektro-Außenläufermotors, ist das Mähen mit einem Handrasenmäher wesentlich leichter.Due to the electric drive of the mowing cutting cylinder ( Fig. II, No. 1 ) by means of an electric external rotor motor, mowing with a hand lawn mower is much easier.

Claims (2)

1. Elektrisch betriebenen Handrasenmäher (Fig. II) nach der Beschreibung, dadurch gekennzeichnet, daß der beim herkömmlichen Handrasenmäher (Fig. I) gebräuchlichen Mäh- Schneidezylinder (Fig. I, Nr. 1) ersetzt wird durch einen zylindrischen Elektro-Außenläufermotor (Fig. II, Nr. 1). Einen Elektro-Außenläufermotor (Fig. II, Nr. 1) bei dem die Motorachse fest steht und das Motorgehäuse um die fest­ stehende Achse rotiert.1. Electrically operated hand lawn mower ( Fig. II) according to the description, characterized in that the mowing-cutting cylinder ( Fig. I, No. 1 ) common in the conventional hand lawn mower ( Fig. I) is replaced by a cylindrical electric external rotor motor ( Fig . II, no. 1). An electric external rotor motor ( Fig. II, No. 1 ) in which the motor axis is fixed and the motor housing rotates around the fixed axis. 2. Elektrisch angetriebenen Handrasenmäher (Fig. II) nach Anspruch 1, dadurch gekennzeichnet, daß der zylindrische Elektro-Außenläufermotor (Fig. II, Nr. 1) spiralförmige Schneidemesser (Fig. II, Nr. 2) aufgebaut haben, welche bei der Rotierung des Elektro-Außenläufer-Motors (Fig. II, Nr. 1) gegen ein feststehendes Gegenmesser (Fig. II, Nr. 3) reiben und somit Gras von der Rasenfläche abschneiden.2. Electrically powered hand lawn mower ( Fig. II) according to claim 1, characterized in that the cylindrical electric external rotor motor ( Fig. II, No. 1 ) have spiral cutting blades ( Fig. II, No. 2 ), which during rotation of the electric external rotor motor ( Fig. II, No. 1 ) rub against a fixed counter knife ( Fig. II, No. 3 ) and cut grass off the lawn.
DE3921068A 1989-06-28 1989-06-28 Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades Ceased DE3921068A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3921068A DE3921068A1 (en) 1989-06-28 1989-06-28 Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3921068A DE3921068A1 (en) 1989-06-28 1989-06-28 Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades

Publications (1)

Publication Number Publication Date
DE3921068A1 true DE3921068A1 (en) 1991-01-03

Family

ID=6383702

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3921068A Ceased DE3921068A1 (en) 1989-06-28 1989-06-28 Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades

Country Status (1)

Country Link
DE (1) DE3921068A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010122055A1 (en) 2009-04-22 2010-10-28 Technische Universität Dresden Self-propelled harvester having an electrically driven threshing drum
RU2529175C1 (en) * 2013-04-11 2014-09-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" Mechanical lawnmower
CN112690084A (en) * 2020-12-25 2021-04-23 绿友机械集团股份有限公司 Lawn trimming hob driven by built-in external rotor motor and lawn maintenance tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010122055A1 (en) 2009-04-22 2010-10-28 Technische Universität Dresden Self-propelled harvester having an electrically driven threshing drum
RU2529175C1 (en) * 2013-04-11 2014-09-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" Mechanical lawnmower
CN112690084A (en) * 2020-12-25 2021-04-23 绿友机械集团股份有限公司 Lawn trimming hob driven by built-in external rotor motor and lawn maintenance tool
EP4260678A4 (en) * 2020-12-25 2024-06-12 Greenman Machinery Company Lawn trimming roller cutter driven by built-in outer rotor motor and lawn maintenance tool

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Legal Events

Date Code Title Description
8131 Rejection