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EP1431998A3 - Safety switch device - Google Patents

Safety switch device Download PDF

Info

Publication number
EP1431998A3
EP1431998A3 EP03257590A EP03257590A EP1431998A3 EP 1431998 A3 EP1431998 A3 EP 1431998A3 EP 03257590 A EP03257590 A EP 03257590A EP 03257590 A EP03257590 A EP 03257590A EP 1431998 A3 EP1431998 A3 EP 1431998A3
Authority
EP
European Patent Office
Prior art keywords
housing
safety
button
guiding groove
handle
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.)
Withdrawn
Application number
EP03257590A
Other languages
German (de)
French (fr)
Other versions
EP1431998A2 (en
Inventor
Xiahong Zha
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.)
Positec Power Tools Suzhou Co Ltd
Original Assignee
Positec Power Tools Suzhou Co Ltd
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 Positec Power Tools Suzhou Co Ltd filed Critical Positec Power Tools Suzhou Co Ltd
Publication of EP1431998A2 publication Critical patent/EP1431998A2/en
Publication of EP1431998A3 publication Critical patent/EP1431998A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot
    • 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

  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The present invention relates to a safety switch device comprising a housing and a handle pivotally connected to the housing via a pivot. An electric switch is accommodated within the housing. A safety press-button is slidably provided on the housing. A pressing member is fixedly mounted on a slideable rod in the housing. An internal portion of the handle presses against the slidable rod. The slidable rod lies in a guiding groove on the interior of the housing. A clearance between the slidable rod in the guiding groove and the edge of the guiding groove is sufficient to advantageously permit the slidable rod to swing in the guiding groove when the safety button is not depressed. Irrespective of whether the safety press-button is depressed or not, the handle can always be rotated about the pivot so that the risk of damage by accidental operation of the handle or safety press button is eliminated.
EP03257590A 2002-12-16 2003-12-02 Safety switch device Withdrawn EP1431998A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02287611 2002-12-16
CN02287611U CN2593341Y (en) 2002-12-16 2002-12-16 Safety switch

Publications (2)

Publication Number Publication Date
EP1431998A2 EP1431998A2 (en) 2004-06-23
EP1431998A3 true EP1431998A3 (en) 2006-02-01

Family

ID=29746757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03257590A Withdrawn EP1431998A3 (en) 2002-12-16 2003-12-02 Safety switch device

Country Status (2)

Country Link
EP (1) EP1431998A3 (en)
CN (1) CN2593341Y (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9596806B2 (en) 2013-10-10 2017-03-21 Chervon (Hk) Limited Control system for controlling the operation of a gardening tool
US9888627B2 (en) 2012-10-15 2018-02-13 Chervon (Hk) Limited Lawncare apparatus with a foldable operating arm
CN111029200B (en) * 2020-01-07 2020-11-06 国网上海市电力公司 Current overload protection switch blade convenient to change fuse
US11638397B2 (en) 2020-02-10 2023-05-02 Techtronic Cordless Gp Control assembly coupled to handle of an implement
US12279552B2 (en) 2021-12-08 2025-04-22 Honda Motor Co., Ltd. Blade control assembly, lawnmower, and method for operating a blade control assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006405A1 (en) * 1980-02-21 1981-08-27 Gardena Kress + Kastner Gmbh, 7900 Ulm Hand held power tool with two operating pushbuttons - which cooperate and move shared rod that actuates shared switch, when both buttons are depressed
DE8414594U1 (en) * 1984-05-12 1985-10-10 Schulte-Elektrotechnik GmbH & Co KG, 5880 Lüdenscheid Switch arrangement with switch-on lock
DE8511477U1 (en) * 1985-04-18 1986-03-06 TRIPUS-Kunststoffteile GmbH, 8870 Günzburg Device for switching electrical devices on and off
DE3926098A1 (en) * 1989-08-08 1991-02-14 Gardena Kress & Kastner Gmbh Starter switch for electrically driven appts. - has several handles, operatable in arbitrary sequence for switch-on step
EP0825627A2 (en) * 1996-08-23 1998-02-25 Electrolux Outdoor Products Limited Actuating mechanism
US5806374A (en) * 1996-03-22 1998-09-15 Makita Corporation Operation switch device for use with lawnmower

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006405A1 (en) * 1980-02-21 1981-08-27 Gardena Kress + Kastner Gmbh, 7900 Ulm Hand held power tool with two operating pushbuttons - which cooperate and move shared rod that actuates shared switch, when both buttons are depressed
DE8414594U1 (en) * 1984-05-12 1985-10-10 Schulte-Elektrotechnik GmbH & Co KG, 5880 Lüdenscheid Switch arrangement with switch-on lock
DE8511477U1 (en) * 1985-04-18 1986-03-06 TRIPUS-Kunststoffteile GmbH, 8870 Günzburg Device for switching electrical devices on and off
DE3926098A1 (en) * 1989-08-08 1991-02-14 Gardena Kress & Kastner Gmbh Starter switch for electrically driven appts. - has several handles, operatable in arbitrary sequence for switch-on step
US5806374A (en) * 1996-03-22 1998-09-15 Makita Corporation Operation switch device for use with lawnmower
EP0825627A2 (en) * 1996-08-23 1998-02-25 Electrolux Outdoor Products Limited Actuating mechanism

Also Published As

Publication number Publication date
EP1431998A2 (en) 2004-06-23
CN2593341Y (en) 2003-12-17

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