GB2139329B - Improvements in or relating to hand-controlled electrically-powered appliances - Google Patents

Improvements in or relating to hand-controlled electrically-powered appliances

Info

Publication number
GB2139329B
GB2139329B GB08306007A GB8306007A GB2139329B GB 2139329 B GB2139329 B GB 2139329B GB 08306007 A GB08306007 A GB 08306007A GB 8306007 A GB8306007 A GB 8306007A GB 2139329 B GB2139329 B GB 2139329B
Authority
GB
United Kingdom
Prior art keywords
relating
hand
controlled electrically
powered appliances
appliances
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
GB08306007A
Other versions
GB2139329A (en
GB8306007D0 (en
Inventor
Alan Trelford
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
Priority to GB08306007A priority Critical patent/GB2139329B/en
Publication of GB8306007D0 publication Critical patent/GB8306007D0/en
Publication of GB2139329A publication Critical patent/GB2139329A/en
Application granted granted Critical
Publication of GB2139329B publication Critical patent/GB2139329B/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
    • A01D34/67—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
    • A01D34/67—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
    • A01D34/6818—Motor starting 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D51/00—Motor vehicles characterised by the driver not being seated
    • B62D51/001—Motor vehicles characterised by the driver not being seated characterised by the vehicle control device
    • 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
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/18—Control arrangements requiring the use of both hands
    • F16P3/20—Control arrangements requiring the use of both hands for electric control systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/005—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for preventing unintentional use of a control mechanism
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H01H2009/068—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner with switches mounted on a handlebar, e.g. for motorcycles, fork lift trucks, etc.
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Harvester Elements (AREA)
GB08306007A 1983-03-04 1983-03-04 Improvements in or relating to hand-controlled electrically-powered appliances Expired GB2139329B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08306007A GB2139329B (en) 1983-03-04 1983-03-04 Improvements in or relating to hand-controlled electrically-powered appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08306007A GB2139329B (en) 1983-03-04 1983-03-04 Improvements in or relating to hand-controlled electrically-powered appliances

Publications (3)

Publication Number Publication Date
GB8306007D0 GB8306007D0 (en) 1983-04-07
GB2139329A GB2139329A (en) 1984-11-07
GB2139329B true GB2139329B (en) 1986-09-10

Family

ID=10538989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08306007A Expired GB2139329B (en) 1983-03-04 1983-03-04 Improvements in or relating to hand-controlled electrically-powered appliances

Country Status (1)

Country Link
GB (1) GB2139329B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573307A (en) * 1982-09-30 1986-03-04 Outboard Marine Corporation Lawn mower dead man control
DE3929441C2 (en) * 1989-09-05 1998-09-10 Stihl Maschf Andreas Hand-held implement
US5203147A (en) * 1992-01-22 1993-04-20 Ryobi Motor Products Corp. Lawn mower activation switch
GB9224660D0 (en) * 1992-11-25 1993-01-13 Black & Decker Inc Improved switch mechanism
JP3329654B2 (en) * 1996-03-22 2002-09-30 株式会社マキタ Operation switch of electric lawn mower
ITMI20010412U1 (en) * 2001-07-20 2003-01-20 Ibea S P A LAWN MOWER EQUIPPED WITH BLADE SAFETY DEVICE
US7237620B2 (en) * 2002-03-11 2007-07-03 Desa Ip, Llc Electric garden tiller

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804844C3 (en) * 1978-02-04 1981-01-22 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Spray gun, in particular high pressure spray gun

Also Published As

Publication number Publication date
GB2139329A (en) 1984-11-07
GB8306007D0 (en) 1983-04-07

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Legal Events

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

Effective date: 19980304