EP 1618649 A2 20060125 - SOIL CULTIVATION APPLIANCE, ESPECIALLY A HOE, OPERATED IN AN ELECTROMOTIVE MANNER
Title (en)
SOIL CULTIVATION APPLIANCE, ESPECIALLY A HOE, OPERATED IN AN ELECTROMOTIVE MANNER
Title (de)
ELEKTROMOTORISCH BETRIEBENES BODENBEARBEITUNGSGERÄT, INSBESONDERE BODENHACKE
Title (fr)
APPAREIL ENTRAINE PAR MOTEUR ELECTRIQUE ET DESTINE AU TRAVAIL DE LA TERRE, EN PARTICULIER BINEUSE
Publication
Application
Priority
- DE 2004000693 W 20040402
- DE 20305393 U 20030403
- DE 202004001637 U 20040204
Abstract (en)
[origin: WO2004086848A2] The invention relates to a soil cultivation appliance, especially a hoe, which is operated in an electromotive manner and used to cultivate soil in the domains of agriculture and horticulture, said appliance comprising an asynchronous rotary current motor (4) for driving a rotatable soil cultivation tool (3). Said soil cultivation appliance comprises a frequency converter (10) for producing a drive voltage having a regulatable frequency for the rotary current motor (4), the frequency converter (10) being connected to a manually operable regulating device (8, 9) for changing the frequency of the drive voltage. The rotary current motor is embodied in such a way that an approximately constant torque of the rotary current motor (4) is maintained over a wide range of rotational speeds of the rotary current motor (4), which can be adjusted by means of the regulating device (8, 9). The invention provides a user-friendly soil cultivation appliance that can also be operated within low ranges of rotational speed for efficient soil cultivation.
IPC 1-7
IPC 8 full level
A01B 1/06 (2006.01); A01D 75/18 (2006.01); F16P 3/20 (2006.01)
CPC (source: EP US)
A01B 33/028 (2013.01 - EP US); A01D 69/02 (2013.01 - EP US); F16P 3/20 (2013.01 - EP US); A01D 75/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2004086848A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004086848 A2 20041014; WO 2004086848 A3 20050217; DE 112004001062 D2 20060316; EP 1618649 A2 20060125; US 2007000672 A1 20070104
DOCDB simple family (application)
DE 2004000693 W 20040402; DE 112004001062 T 20040402; EP 04725273 A 20040402; US 55138405 A 20051114