GB2001836A - An agricultural mower and a cutting blade therefor - Google Patents

An agricultural mower and a cutting blade therefor

Info

Publication number
GB2001836A
GB2001836A GB7829656A GB7829656A GB2001836A GB 2001836 A GB2001836 A GB 2001836A GB 7829656 A GB7829656 A GB 7829656A GB 7829656 A GB7829656 A GB 7829656A GB 2001836 A GB2001836 A GB 2001836A
Authority
GB
United Kingdom
Prior art keywords
blade
flange
plunger
mower
drum
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
Application number
GB7829656A
Other versions
GB2001836B (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB7829656A priority Critical patent/GB2001836B/en
Publication of GB2001836A publication Critical patent/GB2001836A/en
Application granted granted Critical
Publication of GB2001836B publication Critical patent/GB2001836B/en
Expired legal-status Critical Current

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
    • A01D34/74—Cutting-height adjustment
    • 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
    • A01D34/64—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 mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66—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 mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A01D34/661—Mounting means
    • 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
    • A01D34/73—Cutting apparatus
    • A01D34/733—Cutting-blade mounting means
    • 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
    • A01D34/73—Cutting apparatus
    • A01D34/736—Flail type

Abstract

The cutting blades 82 of an agricultural drum mower are pivotally mounted onto a flange 80 on the drum of a mower. A spring pressed plunger 210 is provided on the flange and this plunger passes through a hole in the blade. An access hole 222 is provided in the flange so that the plunger may be depressed below the hole and the blade withdrawn. The arrangement is such that when the drum rotates the blade is pressed by centrifugal force into contact with stops. The blade itself has four cutting edges, viz:- two aligned cutting edges on opposite sides of the blade each aligned pair of edges being separated by a land adapted to engage a stop on the flange so that the pivotal movement of the blade can be arrested. <IMAGE>
GB7829656A 1977-07-13 1978-07-12 Agricultural mower and a cutting blade therefor Expired GB2001836B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7829656A GB2001836B (en) 1977-07-13 1978-07-12 Agricultural mower and a cutting blade therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2937477 1977-07-13
GB7829656A GB2001836B (en) 1977-07-13 1978-07-12 Agricultural mower and a cutting blade therefor

Publications (2)

Publication Number Publication Date
GB2001836A true GB2001836A (en) 1979-02-14
GB2001836B GB2001836B (en) 1982-03-24

Family

ID=26259892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829656A Expired GB2001836B (en) 1977-07-13 1978-07-12 Agricultural mower and a cutting blade therefor

Country Status (1)

Country Link
GB (1) GB2001836B (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022588A1 (en) * 1979-07-17 1981-01-21 Petrus Wilhelmus Zweegers Mower blade mounting
FR2517927A1 (en) * 1981-12-15 1983-06-17 Zweegers P FASTENING CUTTING BLADES ON A ROTATING MOWER
DE3202926A1 (en) * 1982-01-29 1983-08-11 Claas Saulgau GmbH, 7968 Saulgau Rotary mower
WO1990014755A1 (en) * 1989-06-01 1990-12-13 William Henry Clarke Cutting blade and mounting
EP0809929A1 (en) * 1996-05-29 1997-12-03 Jf-Fabriken - J. Freudendahl A/S A knife holder for a mower
DE20203511U1 (en) * 2002-03-05 2003-07-17 Ungruh Josef Agricultural mowing device, comprising several rotating blade units driven by central axle enveloped by toothed wheel
WO2011154557A1 (en) * 2010-06-11 2011-12-15 Eberhard Christ Device for fastening blades on a mowing or mulching machine
GB2500200A (en) * 2012-03-12 2013-09-18 John Murphy Cutting apparatus having a blade mounted via a moveable joint
EP2939515A1 (en) * 2014-04-29 2015-11-04 CNH Industrial Belgium nv Rock guard for quick change knives on a disc mower
WO2017136443A1 (en) 2016-02-02 2017-08-10 Irobot Corporation Blade assembly for a grass cutting mobile robot
WO2017184869A1 (en) * 2016-04-20 2017-10-26 Mtd Products Inc Low-energy blade system having a quick-attach mechanism
US10542670B2 (en) 2016-06-24 2020-01-28 Mtd Products Inc High-efficiency cutting system
CN112449869A (en) * 2020-11-25 2021-03-09 中国农业科学院草原研究所 Caragana korshinskii bush cutter
US11470774B2 (en) 2017-07-14 2022-10-18 Irobot Corporation Blade assembly for a grass cutting mobile robot

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022588A1 (en) * 1979-07-17 1981-01-21 Petrus Wilhelmus Zweegers Mower blade mounting
FR2517927A1 (en) * 1981-12-15 1983-06-17 Zweegers P FASTENING CUTTING BLADES ON A ROTATING MOWER
US4525990A (en) * 1981-12-15 1985-07-02 Zweegers P Device for mowing crop
DE3202926A1 (en) * 1982-01-29 1983-08-11 Claas Saulgau GmbH, 7968 Saulgau Rotary mower
WO1990014755A1 (en) * 1989-06-01 1990-12-13 William Henry Clarke Cutting blade and mounting
EP0809929A1 (en) * 1996-05-29 1997-12-03 Jf-Fabriken - J. Freudendahl A/S A knife holder for a mower
DE20203511U1 (en) * 2002-03-05 2003-07-17 Ungruh Josef Agricultural mowing device, comprising several rotating blade units driven by central axle enveloped by toothed wheel
WO2011154557A1 (en) * 2010-06-11 2011-12-15 Eberhard Christ Device for fastening blades on a mowing or mulching machine
GB2500200A (en) * 2012-03-12 2013-09-18 John Murphy Cutting apparatus having a blade mounted via a moveable joint
US9717175B2 (en) 2014-04-29 2017-08-01 Cnh Industrial America Llc Rock guard for quick change knives on a disc mower
EP2939515A1 (en) * 2014-04-29 2015-11-04 CNH Industrial Belgium nv Rock guard for quick change knives on a disc mower
WO2017136443A1 (en) 2016-02-02 2017-08-10 Irobot Corporation Blade assembly for a grass cutting mobile robot
EP3410837A4 (en) * 2016-02-02 2019-10-02 iRobot Corporation Blade assembly for a grass cutting mobile robot
WO2017184869A1 (en) * 2016-04-20 2017-10-26 Mtd Products Inc Low-energy blade system having a quick-attach mechanism
US10433480B2 (en) 2016-04-20 2019-10-08 Mtd Products Inc Low-energy blade system having a quick-attach mechanism
EP3760023A1 (en) * 2016-04-20 2021-01-06 MTD Products Inc Low-energy blade system having a quick-attach mechanism
US10542670B2 (en) 2016-06-24 2020-01-28 Mtd Products Inc High-efficiency cutting system
US11464164B2 (en) 2016-06-24 2022-10-11 Mtd Products Inc High-efficiency cutting system
US11470774B2 (en) 2017-07-14 2022-10-18 Irobot Corporation Blade assembly for a grass cutting mobile robot
CN112449869A (en) * 2020-11-25 2021-03-09 中国农业科学院草原研究所 Caragana korshinskii bush cutter
CN112449869B (en) * 2020-11-25 2022-08-12 中国农业科学院草原研究所 Caragana korshinskii bush cutter

Also Published As

Publication number Publication date
GB2001836B (en) 1982-03-24

Similar Documents

Publication Publication Date Title
GB2001836A (en) An agricultural mower and a cutting blade therefor
GB1467557A (en) Dry-shaving apparatus
ES251751U (en) Hair cutter, in particular for dry-shavers.
GB1486267A (en) Rotary paper cutter
USD252182S (en) Hand knife
FR2364607A1 (en) SMALL PIECES REDUCTION DEVICE FOR CHOPPER HARVESTER, AND SIMILAR
ES451794A1 (en) Cutter
GB1210919A (en) Paper trimmer
JPS5341874A (en) Cutting apparatus
JPS5554124A (en) Electrically-driven cutter
SU725869A1 (en) Apparatus for sawdust-free cutting of wood
FR2397782A1 (en) CHOPPER-HARVESTER
JPS51151539A (en) Diaphragm device
GB1199553A (en) Cutter Head for Dry Shaver.
SU727174A1 (en) Apparatus for undercutting tea
JPS53147551A (en) State detector of spot light
AU506071B2 (en) Ride on mower with edge cutter
GB815399A (en) Improvements in or relating to bread boards and the like
SU1076073A2 (en) Apparatus for cutting rinds from moulded parts of foot-wear lower sections
GB1442240A (en) Dry shaver with hinged shaving head
JPS5355274A (en) Electric razor
JPS55233A (en) Disposal of old tire
JPS5423279A (en) Cutting device
JPS5322459A (en) Autoatic tacking device
JPS5343289A (en) Circular cutting device

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee
732 Registration of transactions, instruments or events in the register (sect. 32/1977)