GB2110432B - Vegetation cutters - Google Patents

Vegetation cutters

Info

Publication number
GB2110432B
GB2110432B GB08232579A GB8232579A GB2110432B GB 2110432 B GB2110432 B GB 2110432B GB 08232579 A GB08232579 A GB 08232579A GB 8232579 A GB8232579 A GB 8232579A GB 2110432 B GB2110432 B GB 2110432B
Authority
GB
United Kingdom
Prior art keywords
vegetation cutters
vegetation
cutters
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
GB08232579A
Other versions
GB2110432A (en
Inventor
Graham Albert Massey
Keith Andrew Jefferson
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.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
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 Black and Decker Inc filed Critical Black and Decker Inc
Publication of GB2110432A publication Critical patent/GB2110432A/en
Application granted granted Critical
Publication of GB2110432B publication Critical patent/GB2110432B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/10—Commutator motors, e.g. repulsion motors
    • H02P25/14—Universal motors
    • H02P25/145—Universal motors whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value, speed feedback
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/006—Control or measuring arrangements
    • 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
    • A01D34/695—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 supported by an air cushion
    • 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
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/02—Driving mechanisms or parts thereof for harvesters or mowers electric

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Harvester Elements (AREA)
GB08232579A 1981-11-13 1982-11-15 Vegetation cutters Expired GB2110432B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8134273 1981-11-13

Publications (2)

Publication Number Publication Date
GB2110432A GB2110432A (en) 1983-06-15
GB2110432B true GB2110432B (en) 1986-07-02

Family

ID=10525863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08232579A Expired GB2110432B (en) 1981-11-13 1982-11-15 Vegetation cutters

Country Status (2)

Country Link
DE (1) DE3241763A1 (en)
GB (1) GB2110432B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032876A1 (en) * 1990-10-17 1992-04-23 Teves Gmbh Alfred Electric motor driven hydraulic pump unit - uses voltage control system to maintain constant pump motor speed under varying pressure conditions
DE4201151C2 (en) * 1992-01-17 1994-07-07 Wolf Geraete Gmbh Vertrieb Lawn mower powered by an internal combustion engine
JPH09201126A (en) * 1995-11-24 1997-08-05 Honda Motor Co Ltd Electric mower
DE19809988A1 (en) * 1998-03-09 1999-10-07 Gardena Kress & Kastner Gmbh Hand-held work tool driven by an electric motor
EP1992064B1 (en) * 2006-03-03 2018-11-21 Black & Decker, Inc. Cordless power tool having multi-speed transmission and constant speed in light torque range
GB0615241D0 (en) 2006-08-01 2006-09-06 Bosch Gmbh Robert Lawn-care apparatus
US20120228041A1 (en) * 2009-11-13 2012-09-13 Positec Power Tools (Suzhou) Co., Ltd. Lawn mower
WO2013008812A1 (en) * 2011-07-12 2013-01-17 ヤンマー株式会社 Mobile electric work machine
GB2519999B (en) * 2013-11-05 2019-03-27 Husqvarna Ab Hover mower
FR3039355B1 (en) * 2015-07-27 2017-07-14 Pellenc Sa ELECTRIC MOWER WITH MULTIPLE BLADES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA79933B (en) * 1978-03-13 1980-03-26 Flymo Sa Lawn mower
DE2945210A1 (en) * 1979-11-09 1981-06-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Grass mower with reduced noise, consumption and speed control - has asynchronous motor with increased torque in top speed range and has high starting torque

Also Published As

Publication number Publication date
DE3241763C2 (en) 1990-04-12
DE3241763A1 (en) 1983-06-23
GB2110432A (en) 1983-06-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19981115