DE3232895A1 - Rotary lawnmower with electrical drive - Google Patents
Rotary lawnmower with electrical driveInfo
- Publication number
- DE3232895A1 DE3232895A1 DE19823232895 DE3232895A DE3232895A1 DE 3232895 A1 DE3232895 A1 DE 3232895A1 DE 19823232895 DE19823232895 DE 19823232895 DE 3232895 A DE3232895 A DE 3232895A DE 3232895 A1 DE3232895 A1 DE 3232895A1
- Authority
- DE
- Germany
- Prior art keywords
- lawn mower
- lawnmower
- sickle
- openings
- motor
- 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.)
- Granted
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
- A01D34/76—Driving mechanisms for the cutters
- A01D34/78—Driving mechanisms for the cutters electric
-
- 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
- A01D34/81—Casings; Housings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/02—Driving mechanisms or parts thereof for harvesters or mowers electric
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D2101/00—Lawn-mowers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
Description
BESCHREIBUNGDESCRIPTION
Die Erfindung bezieht sich auf einen Rasenmäher mit elektrischem Antrieb, bei welchem der Motor für das Schneidwerk von einem Gehäuse umgeben ist, welches aus dem Rasenmäherdeck mit dem Fahrgestell und einer Abdeckhaube für den in einer Ausnehmung des Decks eingesetzten Motor besteht.The invention relates to an electric lawn mower, in which the motor for the cutting unit is surrounded by a housing, which from the lawn mower deck with the chassis and a cover for the in one The engine used is recess of the deck.
Üblicherweise ist im Deck von Rasenmuhergehäusen ein Durchbruch zum Einsetzen des Motors vorgesehen. Der Durchmesser dieses Durchbruches muß um ein beträchtliches Maß größer sein, als der Durchmesser des einzusetzenden Motors, da zwischen Motor und Gehäuse-Innenwand ein Ringspalt entstehen muß, der zur Zirkulation der Kühlluft für den Motor notwendig ist.Usually there is a breakthrough in the deck of lawn mowers Insertion of the engine provided. The diameter of this breakthrough must be one be considerably larger than the diameter of the motor to be used because An annular gap must be created between the motor and the inner wall of the housing, which is necessary for circulation the cooling air is necessary for the engine.
Die bekannten Konstruktionen haben insgesamt den Nachteil, daß das Rasenmäherdeck in seiner Steifigkeit beeinträchtigt ist, so daß es im Betriebe nicht verwindungsfrei bleibt, insbesondere im Hinblick darauf, daß die herabgezogenen Seitenwände des Rasenmäherdecks als Teile des Fahrgestelles benutzt werden.The known constructions have the overall disadvantage that the Lawn mower deck is impaired in its rigidity, so that it is not in operation remains torsion-free, especially with regard to the fact that the pulled down Side walls of the lawn mower deck are used as parts of the chassis.
Aufgabe der Erfindung ist es daher, diese Konstruktionsweise zu verbessern und ein verwindungsfreies Rasenmähergehäuse zu schaffen, welches zugleich für die Montage des Rasenmähers günstig gestaltet ist. Hierbei sollen nach Möglichkeit bereits bewährte Arten der Kühlung des Motors durch ein mit dem Schneidmesser verbundenes Lüfterrad oder dergleichen beibehalten werden.The object of the invention is therefore to improve this type of construction and to create a torsion-free lawnmower housing, which at the same time for the Mounting the lawnmower is designed cheap. Here, if possible, should already Tried and tested ways of cooling the motor by means of one connected to the cutting knife Fan wheel or the like are retained.
Die Erfindung ist darin zu sehen, daß bei einem Elektrorasenmäher der eingangs genannten Art Rasenmäherdeck und Motorhaube einstückig ausgebildet sind, oberhalb des Schneidwerks ein Lüfter vorgesehen ist und der dadurch erzeugte Luftstrom zunächst zur Kühlung des Motors benutzt und dann durch Öffnungen in den Auswurfkanal geleitet wird.The invention can be seen in the fact that in an electric lawn mower of the type mentioned lawnmower deck and engine hood formed in one piece are, a fan is provided above the cutting unit and the generated thereby Air flow is first used to cool the motor and then through openings in the Ejection channel is directed.
In Weiterbildung der Erfindung wird vorgeschlagen, vorzugsweise im Zentralbereich der Abdeckhaube für den Motor eine oder mehrere öffnungen vorzusehen, die ganz oder teilweise verschließbar sind. Rasenmähergehäuse und Elektromotor tragen gemäß der Erfindung sich gegenseitig ergänzende Befestigungsvorrichtungen, zum Beispiel Laschen und Verschraubungen.In a further development of the invention it is proposed, preferably in Provide one or more openings in the central area of the cover for the engine, which can be fully or partially closed. Carry the lawnmower housing and electric motor according to the invention mutually complementary fastening devices, for example Brackets and screw connections.
Weiterhin wird gemäß der Erfindung der Durchmesser des Lüfterrotors nur um ein Geringes kleiner gewählt als der Durchmesser des vom Kanal-Innenring umschlossenen Kreises.Furthermore, according to the invention, the diameter of the fan rotor Selected only a little smaller than the diameter of the inner ring of the channel enclosed circle.
In der nachfolgend beschriebenen Zeichnung ist ein Rasenmäher schematisch und im Schnitt dargestellt, bei dessen Aufbau die Erfindungsgedanken verwirklicht wurden.In the drawing described below, a lawn mower is schematic and shown in section, in the structure of which the inventive idea is realized became.
Bei der einzigen Figur ist in einem Rasenmähergehäuse 1 der Motor 6 eingebaut, an dessen bodennahem Ende das Messer 7 angeordnet ist. Die Motorwelle treibt zugleich ein Lüfterrad 8 an, welches zusammen mit dem Messer 7 unterhalb des Motors umläuft und Kühlluft durch die Öffnung 5 ansaugt und in den Ringspalt zwischen Motoraussenwandung und Kanalwand 3 fördert.In the single figure, the engine is in a lawnmower housing 1 6 installed, at the end of which the knife 7 is arranged near the bottom. The motor shaft at the same time drives a fan wheel 8, which together with the knife 7 below of the motor rotates and sucks cooling air through the opening 5 and into the annular gap between the engine outer wall and duct wall 3 promotes.
Der Motor 6 ist von unten in das Gehäuse 1 eingesetzt und mittels am Motoräusseren befindlichen Laschen 9 und am Kanal-Innenring 3 befindlichen Verschraubungen 10 befestigt. Ausströmöffnungen 4 im Kanal-Innenring 3 lassen die Kühl luft in das Kanalinnere austreten, wo sie den Grastransport fördern und am Kanalende 11 austreten. Unterhalb des Lüfterrades 7 ist der den Motor 6 aufnehmende zylindrische Raum durch eine Abdeckscheibe 12 verschlossen.The motor 6 is inserted from below into the housing 1 and by means of tabs 9 located on the outside of the engine and screw connections located on the inner channel ring 3 10 attached. Outflow openings 4 in the inner channel ring 3 let the cooling air into the Exit inside the channel, where they promote the grass transport and exit at the end of the channel 11. The cylindrical space accommodating the motor 6 extends below the fan wheel 7 a cover plate 12 closed.
Die durch die Erfindung erzielten Vorteile sind vor allem erhöhte Steifigkeit des Rasenmähergehäuses, dadurch Verwindungsfreiheit und besserer Mäherfolg; erleichterte Montage; Kühlluftansaugung von oben; Verwendung dieses Kühlluftstromes zur Förderung der Grasabschnitte.The advantages achieved by the invention are above all increased Rigidity of the lawnmower housing, thus freedom from torsion and better mowing success; easier assembly; Cooling air intake from above; Use of this cooling air flow for conveying the grass cuttings.
LeerseiteBlank page
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823232895 DE3232895C2 (en) | 1982-09-04 | 1982-09-04 | Sickle lawn mower with electric drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823232895 DE3232895C2 (en) | 1982-09-04 | 1982-09-04 | Sickle lawn mower with electric drive |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3232895A1 true DE3232895A1 (en) | 1984-03-08 |
DE3232895C2 DE3232895C2 (en) | 1986-02-13 |
Family
ID=6172454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823232895 Expired DE3232895C2 (en) | 1982-09-04 | 1982-09-04 | Sickle lawn mower with electric drive |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3232895C2 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4944142A (en) * | 1988-08-22 | 1990-07-31 | Honda Giken Kogyo Kabushiki Kaisha | Power lawnmower construction |
WO1992000002A1 (en) * | 1990-06-26 | 1992-01-09 | Raimo Savipakka | Lawn mower |
EP0584532A1 (en) * | 1992-08-24 | 1994-03-02 | WOLF-Geräte GmbH Vertriebsgesellschaft KG | Motor driven aerating machine |
FR2828787A1 (en) * | 2001-08-22 | 2003-02-28 | Honda Motor Co Ltd | ELECTRIC LAWN MOWER |
US8191343B1 (en) * | 2009-06-26 | 2012-06-05 | Hydro-Gear Limited Partnership | Systems and methods for cooling a controller assembly |
EP2878189A1 (en) * | 2013-09-27 | 2015-06-03 | Kubota Corporation | Mower unit |
US20150359174A1 (en) * | 2014-06-16 | 2015-12-17 | Kubota Corporation | Mower with motor cooling |
US20150359170A1 (en) * | 2014-06-16 | 2015-12-17 | Kubota Corporation | Mower with mower deck mounted motor |
CN113226012A (en) * | 2018-09-27 | 2021-08-06 | 南京德朔实业有限公司 | Grass cutter |
US20220078971A1 (en) * | 2020-09-16 | 2022-03-17 | Kubota Corporation | Mowing Device |
US20220174870A1 (en) * | 2020-12-04 | 2022-06-09 | The Toro Company | Assembly for adding ambient air to the cutting chamber of a walk power mower |
US11641795B2 (en) | 2018-09-27 | 2023-05-09 | Nanjing Chervon Industry Co., Ltd. | Lawn mower |
USD995569S1 (en) | 2019-04-18 | 2023-08-15 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6130153B2 (en) * | 2013-01-31 | 2017-05-17 | 株式会社マキタ | Brush cutter |
US11973396B2 (en) | 2021-03-31 | 2024-04-30 | Honda Motor Co., Ltd. | Electric transmission for an electric lawnmower |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2830052A1 (en) * | 1977-07-12 | 1979-02-01 | Commw Scient Ind Res Org | MOWING MACHINE |
DE8127884U1 (en) * | 1980-09-23 | 1982-03-25 | Bernard-Moteurs, 92350 Le Plessis Robinson | Plastic housing for a lawn mower |
DE2006643C2 (en) * | 1970-02-13 | 1982-08-26 | Wolf-Geräte GmbH, 5240 Betzdorf | Electric motor-driven lawn mower |
-
1982
- 1982-09-04 DE DE19823232895 patent/DE3232895C2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2006643C2 (en) * | 1970-02-13 | 1982-08-26 | Wolf-Geräte GmbH, 5240 Betzdorf | Electric motor-driven lawn mower |
DE2830052A1 (en) * | 1977-07-12 | 1979-02-01 | Commw Scient Ind Res Org | MOWING MACHINE |
DE8127884U1 (en) * | 1980-09-23 | 1982-03-25 | Bernard-Moteurs, 92350 Le Plessis Robinson | Plastic housing for a lawn mower |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4944142A (en) * | 1988-08-22 | 1990-07-31 | Honda Giken Kogyo Kabushiki Kaisha | Power lawnmower construction |
WO1992000002A1 (en) * | 1990-06-26 | 1992-01-09 | Raimo Savipakka | Lawn mower |
EP0584532A1 (en) * | 1992-08-24 | 1994-03-02 | WOLF-Geräte GmbH Vertriebsgesellschaft KG | Motor driven aerating machine |
FR2828787A1 (en) * | 2001-08-22 | 2003-02-28 | Honda Motor Co Ltd | ELECTRIC LAWN MOWER |
US8191343B1 (en) * | 2009-06-26 | 2012-06-05 | Hydro-Gear Limited Partnership | Systems and methods for cooling a controller assembly |
US9756788B1 (en) | 2009-06-26 | 2017-09-12 | Hydro-Gear Limited Partnership | Systems and methods for cooling a controller assembly |
EP2878189A1 (en) * | 2013-09-27 | 2015-06-03 | Kubota Corporation | Mower unit |
EP3300574A1 (en) * | 2013-09-27 | 2018-04-04 | Kubota Corporation | Mower unit |
US20150359174A1 (en) * | 2014-06-16 | 2015-12-17 | Kubota Corporation | Mower with motor cooling |
US20150359170A1 (en) * | 2014-06-16 | 2015-12-17 | Kubota Corporation | Mower with mower deck mounted motor |
US10188032B2 (en) * | 2014-06-16 | 2019-01-29 | Kubota Corporation | Mower with motor cooling |
US10426084B2 (en) * | 2014-06-16 | 2019-10-01 | Kubota Corporation | Mower capable of effectively cooling a motor |
AU2019346954B2 (en) * | 2018-09-27 | 2022-05-19 | Nanjing Chervon Industry Co., Ltd. | Lawn mower |
US11641795B2 (en) | 2018-09-27 | 2023-05-09 | Nanjing Chervon Industry Co., Ltd. | Lawn mower |
US11122737B2 (en) | 2018-09-27 | 2021-09-21 | Nanjing Chervon Industry Co., Ltd. | Blade assembly for a lawn mower |
US12041874B2 (en) | 2018-09-27 | 2024-07-23 | Nanjing Chervon Industry Co., Ltd. | Blade assembly for a lawn mower |
CN113226012A (en) * | 2018-09-27 | 2021-08-06 | 南京德朔实业有限公司 | Grass cutter |
US11997944B2 (en) | 2018-09-27 | 2024-06-04 | Nanjing Chervon Industry Co., Ltd. | Blade assembly for a lawn mower |
CN113226012B (en) * | 2018-09-27 | 2023-03-17 | 南京泉峰科技有限公司 | Grass cutter |
US11917939B2 (en) | 2018-09-27 | 2024-03-05 | Nanjing Chervon Industry Co., Ltd. | Blade assembly for a lawn mower |
USD987691S1 (en) | 2018-09-27 | 2023-05-30 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
EP3821692A4 (en) * | 2018-09-27 | 2021-08-25 | Nanjing Chervon Industry Co., Ltd. | MOWING MACHINE |
USD995568S1 (en) | 2018-09-27 | 2023-08-15 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
USD995567S1 (en) | 2018-09-27 | 2023-08-15 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
USD996471S1 (en) | 2018-09-27 | 2023-08-22 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
USD996470S1 (en) | 2018-09-27 | 2023-08-22 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
USD997998S1 (en) | 2018-09-27 | 2023-09-05 | Nanjing Chervon Industry Co., Ltd. | Mower blade |
US11937545B2 (en) | 2018-09-27 | 2024-03-26 | Nanjing Chervon Industry Co., Ltd. | Blade assembly for a lawn mower |
USD995569S1 (en) | 2019-04-18 | 2023-08-15 | Nanjing Chervon Industry Co., Ltd. | Mower blade assembly |
US20220078971A1 (en) * | 2020-09-16 | 2022-03-17 | Kubota Corporation | Mowing Device |
US11895945B2 (en) * | 2020-12-04 | 2024-02-13 | The Toro Company | Assembly for adding ambient air to the cutting chamber of a walk power mower |
US20220174870A1 (en) * | 2020-12-04 | 2022-06-09 | The Toro Company | Assembly for adding ambient air to the cutting chamber of a walk power mower |
Also Published As
Publication number | Publication date |
---|---|
DE3232895C2 (en) | 1986-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GUTBROD AG, 66129 SAARBRUECKEN, DE |
|
8339 | Ceased/non-payment of the annual fee |