US3670413A - Coupling for tool element - Google Patents

Coupling for tool element Download PDF

Info

Publication number
US3670413A
US3670413A US65953A US3670413DA US3670413A US 3670413 A US3670413 A US 3670413A US 65953 A US65953 A US 65953A US 3670413D A US3670413D A US 3670413DA US 3670413 A US3670413 A US 3670413A
Authority
US
United States
Prior art keywords
blade
motor
shaft
coupling
spring
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 - Lifetime
Application number
US65953A
Other languages
English (en)
Inventor
Edwin J Weber
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 Corp
Original Assignee
Black and Decker Manufacturing Co
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 Manufacturing Co filed Critical Black and Decker Manufacturing Co
Application granted granted Critical
Publication of US3670413A publication Critical patent/US3670413A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A01D34/67—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 hand-guided by a walking operator
    • A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/6806—Driving mechanisms
    • 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
    • A01D34/82—Other details
    • A01D34/828—Safety devices
    • 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
    • A01D69/08—Clutches
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D75/00—Accessories for harvesters or mowers
    • A01D75/20—Devices for protecting men or animals
    • A01D75/206—Devices for protecting men or animals for mowers carried by operator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
    • F16D1/0858—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to the elasticity of the hub (including shrink fits)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • 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
    • A01D34/67—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 hand-guided by a walking operator
    • A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
    • A01D2034/6843—Control levers on the handle of the mower
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers

Definitions

  • FIG. 2 is a plan view of a part of the device of FIG. 1;
  • a grass trimmer which includes a handle, an electric motor at one end of the handle, and a blade mounted on the shaft of the motor for cutting grass by means of an improved coupling arrangement.
  • This coupling includes an insulating member secured to the endof the shaft and a blade mounting means which engages the insulating member and secures the blade thereto.
  • the insulating member comprises a cylindrical body having a groove in its surface and the blade mounting means includes a plurality of spring clips which engage in the groove.
  • the insulator may be a molded part which also provides a cooling fan, and the blade and blade mounting means may be formed from a single metal piece. This coupling may also be used for attaching other output devices to an electric motor. Further features and possible modifications of this em bodiment will be apparent from the following description.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)
US65953A 1970-08-21 1970-08-21 Coupling for tool element Expired - Lifetime US3670413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6595370A 1970-08-21 1970-08-21

Publications (1)

Publication Number Publication Date
US3670413A true US3670413A (en) 1972-06-20

Family

ID=22066270

Family Applications (1)

Application Number Title Priority Date Filing Date
US65953A Expired - Lifetime US3670413A (en) 1970-08-21 1970-08-21 Coupling for tool element

Country Status (6)

Country Link
US (1) US3670413A (enExample)
JP (1) JPS5032209B1 (enExample)
AU (1) AU454425B2 (enExample)
DE (1) DE2140247C2 (enExample)
FR (1) FR2103425B1 (enExample)
GB (1) GB1347302A (enExample)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886716A (en) * 1973-02-26 1975-06-03 Rockwell International Corp Electrically powered grass trimmer
US4089114A (en) * 1976-08-31 1978-05-16 Disston, Inc. Cutting device
US4107841A (en) * 1977-04-22 1978-08-22 True Temper Corporation Weed cutter construction
US4265018A (en) * 1978-08-21 1981-05-05 Black & Decker Inc. Grass trimmer device
US6055798A (en) * 1998-08-24 2000-05-02 Wec Company Locking mechanism for a rotatable shaft
EP1048197A1 (en) * 1999-04-26 2000-11-02 Murray, Inc. Blade assembly for a rotary mower
US6298642B1 (en) 2000-09-15 2001-10-09 Mitchell A. Harb Cutting blade attachment for adjustable height string trimmer head
WO2001070009A3 (en) * 2000-03-21 2002-06-06 Friendly Robotics Ltd Lawnmower cutting deck and improved blade assembly
US20050193708A1 (en) * 2004-03-05 2005-09-08 Outils Wolf Cutting device, particularly a lawn mower
US20120104983A1 (en) * 2009-09-30 2012-05-03 Hideyuki Tanimoto Work machine and brushless motor
US20150359172A1 (en) * 2014-05-20 2015-12-17 David Nelson Rotary Trimmer with Cutting Blade and Line and Blades for Use with Same
US9907225B2 (en) * 2014-10-21 2018-03-06 Tecomec S.R.L. Hedge trimmer head having a tapping body
US20180220582A1 (en) * 2017-02-08 2018-08-09 Fred Trombino Disposable quick-connect cutter head assembly for a rotary trimmer
EP3622797A4 (en) * 2017-05-12 2021-03-17 Skybest Electric Appliance (Suzhou) Co., Ltd. INSULATION STRUCTURE AND MOWER

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676281A5 (en) * 1987-07-27 1990-12-28 Rapid Masch Fahrzeuge Ag Element for compensating tolerances between roller bearings and shafts - has centre stud with central opening and star arms which are bent S=shaped from centre part
GB2251028B (en) * 1990-12-21 1994-08-24 Black & Decker Inc Electric motor with a cooling fan
CN104969723A (zh) * 2015-05-27 2015-10-14 宁波大叶园林设备有限公司 带边切宽幅收草功能及自动抱刹对数螺线刹车的割草机
CN114391374B (zh) * 2021-12-20 2023-10-31 柳州市多科特科技服务有限公司 一种果园自动割草机机械避障装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539619A (en) * 1945-10-22 1951-01-30 Leonard B Goodall Engine lubricating system
US3146007A (en) * 1960-11-12 1964-08-25 Electrolux Ab Apparatus for removably mounting on a drive shaft a part driven by the shaft
US3264016A (en) * 1963-09-10 1966-08-02 Gen Electric Hub and shaft coupling
US3270467A (en) * 1963-07-01 1966-09-06 Merit Products Inc Abrasive device
US3342273A (en) * 1966-03-04 1967-09-19 Emerson Electric Co Fan hub
US3436875A (en) * 1966-08-05 1969-04-08 Ralph R Cheney Abrasive disc holder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL26718C (enExample) * 1929-12-28 1900-01-01
GB1029317A (en) * 1964-06-26 1966-05-11 Robert James Amos A coupling for connecting members for rotation together about an axis
US3500620A (en) * 1967-05-05 1970-03-17 Black & Decker Mfg Co Electric lawnmower construction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539619A (en) * 1945-10-22 1951-01-30 Leonard B Goodall Engine lubricating system
US3146007A (en) * 1960-11-12 1964-08-25 Electrolux Ab Apparatus for removably mounting on a drive shaft a part driven by the shaft
US3270467A (en) * 1963-07-01 1966-09-06 Merit Products Inc Abrasive device
US3264016A (en) * 1963-09-10 1966-08-02 Gen Electric Hub and shaft coupling
US3342273A (en) * 1966-03-04 1967-09-19 Emerson Electric Co Fan hub
US3436875A (en) * 1966-08-05 1969-04-08 Ralph R Cheney Abrasive disc holder

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886716A (en) * 1973-02-26 1975-06-03 Rockwell International Corp Electrically powered grass trimmer
US4089114A (en) * 1976-08-31 1978-05-16 Disston, Inc. Cutting device
US4107841A (en) * 1977-04-22 1978-08-22 True Temper Corporation Weed cutter construction
US4265018A (en) * 1978-08-21 1981-05-05 Black & Decker Inc. Grass trimmer device
US6055798A (en) * 1998-08-24 2000-05-02 Wec Company Locking mechanism for a rotatable shaft
EP1048197A1 (en) * 1999-04-26 2000-11-02 Murray, Inc. Blade assembly for a rotary mower
US6205755B1 (en) 1999-04-26 2001-03-27 Murray, Inc. Quick change blade assembly for a rotary mower
WO2001070009A3 (en) * 2000-03-21 2002-06-06 Friendly Robotics Ltd Lawnmower cutting deck and improved blade assembly
US8136333B1 (en) 2000-03-21 2012-03-20 F Robotics Acquisitions Ltd. Lawnmower cutting deck and releasable blade
US6298642B1 (en) 2000-09-15 2001-10-09 Mitchell A. Harb Cutting blade attachment for adjustable height string trimmer head
US20050193708A1 (en) * 2004-03-05 2005-09-08 Outils Wolf Cutting device, particularly a lawn mower
US7124566B2 (en) * 2004-03-05 2006-10-24 Outils Wolf Cutting device, particularly a lawn mower
US20120104983A1 (en) * 2009-09-30 2012-05-03 Hideyuki Tanimoto Work machine and brushless motor
US9160211B2 (en) * 2009-09-30 2015-10-13 Hitachi Koki Co., Ltd. Work machine and brushless motor
US20150359172A1 (en) * 2014-05-20 2015-12-17 David Nelson Rotary Trimmer with Cutting Blade and Line and Blades for Use with Same
US9907225B2 (en) * 2014-10-21 2018-03-06 Tecomec S.R.L. Hedge trimmer head having a tapping body
US20180220582A1 (en) * 2017-02-08 2018-08-09 Fred Trombino Disposable quick-connect cutter head assembly for a rotary trimmer
EP3622797A4 (en) * 2017-05-12 2021-03-17 Skybest Electric Appliance (Suzhou) Co., Ltd. INSULATION STRUCTURE AND MOWER

Also Published As

Publication number Publication date
AU454425B2 (en) 1974-10-31
JPS5032209B1 (enExample) 1975-10-18
FR2103425B1 (enExample) 1973-06-29
DE2140247A1 (de) 1972-02-24
FR2103425A1 (enExample) 1972-04-14
DE2140247C2 (de) 1982-03-04
GB1347302A (en) 1974-02-27
AU3252671A (en) 1973-02-22

Similar Documents

Publication Publication Date Title
US3670413A (en) Coupling for tool element
US3579827A (en) Hedge trimmer
US4882896A (en) Lawn mower
US4089114A (en) Cutting device
US4242794A (en) Universal blower attachment unit
EP0822036B1 (en) Coupling for split-boom power tool
US10638666B2 (en) Power tool and transmission shaft assembly thereof
US4152882A (en) Vegetation cutting assembly
US4827702A (en) Blower attachment for filament trimmers
US3212188A (en) Cordless electric hedge trimmer
US5724736A (en) Hair cutting device
US4932126A (en) Hand held trimmer for cutting vegetation such as hedges and the like
US2630665A (en) Lawn edger with motor case as the wheel
US3900071A (en) Plate type nail holder for edgers, trimmers, or other applications
US2699605A (en) Garden tool
US4229882A (en) Cutter head and cutters for a vegetation cutting tool
US4265018A (en) Grass trimmer device
US3751805A (en) Hedge trimmer
JP2006314278A (ja) 刈払機
US3673777A (en) Blade mounting means
US5590469A (en) One-handed knife
US4055890A (en) Grass trimming device
US7047649B2 (en) Power cord for a hand-held electrical device
US3990145A (en) Rake and hand shield for hedge trimmers
US2119986A (en) Electric motor