EP0374959A3 - Switch mechanism for an electric power tool - Google Patents

Switch mechanism for an electric power tool Download PDF

Info

Publication number
EP0374959A3
EP0374959A3 EP19890123821 EP89123821A EP0374959A3 EP 0374959 A3 EP0374959 A3 EP 0374959A3 EP 19890123821 EP19890123821 EP 19890123821 EP 89123821 A EP89123821 A EP 89123821A EP 0374959 A3 EP0374959 A3 EP 0374959A3
Authority
EP
European Patent Office
Prior art keywords
switch case
levers
linear slider
converting levers
pair
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
EP19890123821
Other languages
German (de)
French (fr)
Other versions
EP0374959B1 (en
EP0374959A2 (en
Inventor
Kunio Omron Tateisi Electronics Co. Nagata
Masatsugu Omron Tateisi Electronics Co. Yamashita
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics 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
Priority claimed from JP63326439A external-priority patent/JP2697053B2/en
Priority claimed from JP1134269A external-priority patent/JP2705216B2/en
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Publication of EP0374959A2 publication Critical patent/EP0374959A2/en
Publication of EP0374959A3 publication Critical patent/EP0374959A3/en
Application granted granted Critical
Publication of EP0374959B1 publication Critical patent/EP0374959B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • 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
    • H01H9/063—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 enclosing a reversing switch

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

A switch mechanism for an electric power tool, comprising: a linear slider received in a switch case so as be moved manually in a first direction against the biasing force of a return spring; an actuating pin carried by the linear slider so as to be moveable along a second direction perpendicular to the first direction; a pair of direction converting levers crossed in the manner of a pair of scissors by a pivot pin mounted on the switch case, the actuating pin being located adjacent to first ends of the direction converting levers; a pair of lateral sliders engaged by second ends of the direction converting levers and allowed to move in the second direction; a first contact set including contacts carried by the linear slider and the wall surface of the switch case for mutual cooperation as the linear slider is moved in the first direction; and a second contact set including contacts carried by the lateral slides and the wall surface of the switch case for mutual cooperation as the lateral sliders are moved in the second direction; the actuating pins being moveable between the first ends of the direction converting levers so as to selectively actuate one of the direction converting levers and the associated one of the lateral sliders through movement of the liner slider along the first direction via an engagement between the actuating pin and the first end of the associated one of the direction converting levers.
EP89123821A 1988-12-23 1989-12-22 Switch mechanism for an electric power tool Expired - Lifetime EP0374959B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP326439/88 1988-12-23
JP63326439A JP2697053B2 (en) 1988-12-23 1988-12-23 Power tool switch
JP134269/89 1989-05-26
JP1134269A JP2705216B2 (en) 1989-05-26 1989-05-26 Power tool switch

Publications (3)

Publication Number Publication Date
EP0374959A2 EP0374959A2 (en) 1990-06-27
EP0374959A3 true EP0374959A3 (en) 1991-09-11
EP0374959B1 EP0374959B1 (en) 1995-03-08

Family

ID=26468402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123821A Expired - Lifetime EP0374959B1 (en) 1988-12-23 1989-12-22 Switch mechanism for an electric power tool

Country Status (3)

Country Link
EP (1) EP0374959B1 (en)
AT (1) ATE119709T1 (en)
DE (1) DE68921583T2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467801A (en) * 1967-05-01 1969-09-16 Lucerne Products Inc Reversing switch
US3755640A (en) * 1972-07-27 1973-08-28 Skie Corp Reversing switch for a power tool with separate selectively movable contact carriers
EP0048124A2 (en) * 1980-09-12 1982-03-24 Skil Nederland B.V. Speed control switch device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467801A (en) * 1967-05-01 1969-09-16 Lucerne Products Inc Reversing switch
US3755640A (en) * 1972-07-27 1973-08-28 Skie Corp Reversing switch for a power tool with separate selectively movable contact carriers
EP0048124A2 (en) * 1980-09-12 1982-03-24 Skil Nederland B.V. Speed control switch device

Also Published As

Publication number Publication date
EP0374959B1 (en) 1995-03-08
ATE119709T1 (en) 1995-03-15
DE68921583D1 (en) 1995-04-13
DE68921583T2 (en) 1995-08-03
EP0374959A2 (en) 1990-06-27

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