SE8405616D0 - TRIGGER SWITCH CIRCUIT FOR SOLENOID-ACTUATED ELECTRIC HAND TOOL - Google Patents

TRIGGER SWITCH CIRCUIT FOR SOLENOID-ACTUATED ELECTRIC HAND TOOL

Info

Publication number
SE8405616D0
SE8405616D0 SE8405616A SE8405616A SE8405616D0 SE 8405616 D0 SE8405616 D0 SE 8405616D0 SE 8405616 A SE8405616 A SE 8405616A SE 8405616 A SE8405616 A SE 8405616A SE 8405616 D0 SE8405616 D0 SE 8405616D0
Authority
SE
Sweden
Prior art keywords
blade
switch
solenoid
switch circuit
hand tool
Prior art date
Application number
SE8405616A
Other languages
Swedish (sv)
Other versions
SE8405616L (en
SE456957B (en
Inventor
H Weigert
Original Assignee
Electro Matic Staplers 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
Priority claimed from US06/600,398 external-priority patent/US4556803A/en
Application filed by Electro Matic Staplers Inc filed Critical Electro Matic Staplers Inc
Publication of SE8405616D0 publication Critical patent/SE8405616D0/en
Publication of SE8405616L publication Critical patent/SE8405616L/en
Publication of SE456957B publication Critical patent/SE456957B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents
    • H03K17/731—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents with inductive load
    • 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

Landscapes

  • Portable Nailing Machines And Staplers (AREA)
  • Knives (AREA)
  • Push-Button Switches (AREA)

Abstract

A hand-held tool operated by electricity, such as a stapling gun, comprises a switch 46 consisting of two switching elements: the first switching element 50 carries a first flexible, elastic conducting blade 54 consisting for example of a copper alloy, projecting from the edge of the printed card, the other element 52 is a flexible, elastic blade 56 whose pointed, folded-back end 58 is in contact with one face of the first blade. These blades are pushed together to constitute a normally closed switch. When the first blade is drawn in one direction, the switch opens. When the first blade returns in the opposite direction in order to close the switch, the pointed end of the other elastic blade scrapes the corrosive deposit on the region of contact of the two elements: this allows the use of a low current 1mA as control current passing through the switch. <IMAGE>
SE8405616A 1984-04-16 1984-11-09 PRESSURE POWER STEEL CIRCUIT IN AN ELECTRIC CRAFTSMAN SE456957B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/600,398 US4556803A (en) 1984-02-29 1984-04-16 Trigger switch circuit for solenoid-actuated electric hand tool

Publications (3)

Publication Number Publication Date
SE8405616D0 true SE8405616D0 (en) 1984-11-09
SE8405616L SE8405616L (en) 1985-10-17
SE456957B SE456957B (en) 1988-11-14

Family

ID=24403428

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8405616A SE456957B (en) 1984-04-16 1984-11-09 PRESSURE POWER STEEL CIRCUIT IN AN ELECTRIC CRAFTSMAN

Country Status (3)

Country Link
BE (1) BE901063A (en)
FR (1) FR2563044B1 (en)
SE (1) SE456957B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI2179427T1 (en) * 2007-08-07 2012-10-30 Marquardt Gmbh Control device, particularly in the type of an electric switch for hand-held power tools

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR453654A (en) * 1912-04-09 1913-06-13 Mors Electricite Electric contact
NL137795C (en) * 1961-12-22
DE1665412B1 (en) * 1968-02-14 1971-04-01 Polycontact Ag SNAP SWITCH FOR SWITCHING LOW ELECTRICAL VOLTAGE AND CURRENT
DE2729002C3 (en) * 1977-06-28 1981-08-13 Erwin Müller GmbH & Co, 4450 Lingen Stapling or nailing device whose driving ram can be driven during its working stroke by means of a plunger and magnetic coil

Also Published As

Publication number Publication date
SE8405616L (en) 1985-10-17
FR2563044A1 (en) 1985-10-18
FR2563044B1 (en) 1988-01-29
SE456957B (en) 1988-11-14
BE901063A (en) 1985-03-15

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