EP0702381A1 - Dispositif de sécurité mécanique agissant sur la commutation d'un bouton-poussoir électrique - Google Patents

Dispositif de sécurité mécanique agissant sur la commutation d'un bouton-poussoir électrique Download PDF

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Publication number
EP0702381A1
EP0702381A1 EP95112598A EP95112598A EP0702381A1 EP 0702381 A1 EP0702381 A1 EP 0702381A1 EP 95112598 A EP95112598 A EP 95112598A EP 95112598 A EP95112598 A EP 95112598A EP 0702381 A1 EP0702381 A1 EP 0702381A1
Authority
EP
European Patent Office
Prior art keywords
button
switch
push
fork
locking
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
EP95112598A
Other languages
German (de)
English (en)
Other versions
EP0702381B1 (fr
Inventor
Herbert Dipl. Ing. Franz
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Publication of EP0702381A1 publication Critical patent/EP0702381A1/fr
Application granted granted Critical
Publication of EP0702381B1 publication Critical patent/EP0702381B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/08—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch

Definitions

  • the invention relates to a device for mechanically securing a switch position of an electrical pressure switch with a switch housing, a hollow push-button button guided in the switch housing in the exit position for producing an electrical contact, and with a locking button which engages the push-button button to lock the switch position.
  • Electrical pressure switches are used in electrical devices, especially hand-held power tools, which either have to be unlocked for actuation or in which the ON switch position can be locked for continuous operation.
  • An example of mechanical securing of an OFF switch position of a pressure switch can be found in chainsaws.
  • a locking button must first be pressed there before the electrical pressure switch can be switched on.
  • there is a mechanical securing of an ON switch position of an electrical pressure switch when it comes to the fact that after the pressure switch is switched on, continuous operation is to be achieved by engagement of the locking button, so that the operator does not have to constantly press the pressure switch manually.
  • the dimensions and positions of the push button and the locking button are specified by standards, for example the Euro standard. So far there has been the solution that the locking button through the housing in one connected to the pressure switch Switch slide engages. This solution is disadvantageous in that dust can enter the housing through the opening provided for the locking button. In another known solution, a side wall of the push button slides past the outer wall of the housing. This solution has the disadvantage that, when the OFF switch position is locked, only one-sided support of the pushbutton occurs, with the result that the entire pushbutton bends under high pressure and, under certain circumstances, it does switch on in an undesirable manner.
  • the invention has for its object to provide a device for mechanically securing a switching position of an electrical pressure switch of the type mentioned, which ensures safe and reliable operation.
  • the invention accordingly provides a device for mechanically securing a switch position of an electrical pressure switch of the type mentioned at the outset, in which a holding profile is provided on opposite sides in the hollow push-button, the locking button being connected to a cable-shaped slider, which is connected from below has angled fork ends protruding into the push-button for attacking the retaining profile formations.
  • the holding profile formations are advantageously acted upon on both sides and thus a push button support is supported on both sides, the concept according to the invention combining the advantages of a space-saving implementation with those of simple producibility and long-lasting function guarantee.
  • the angled fork ends have stop faces for the holding profile integrations. It is preferably provided for a push-button to be unlocked for actuation by means of the locking button that the fork ends with their stop surfaces engage under the lower end of the retaining profile, the fork ends preferably having an additional lateral stop surface for the lower end of the retaining profile, which advantageously also secure the retaining attack.
  • the locking button engages the pressure switch button
  • the stop surface of each fork end is formed on a molded hook, which in its locking position by the in Disengagement of the prestressed push button button is held in a recess of the holding profile arrangement.
  • the fork-shaped slide used for both forms of training is advantageously guided in a form-fitting manner in the housing, dovetail grooves or the like preferably being provided for the slide guide.
  • the hollow pressure switch button has molded-in entry cavities for the angled fork ends in the ON switch position of the pressure switch.
  • the locking button advantageously has a compression spring which, at the same time, in the embodiment of the device in which the locking button is to be unlocked for actuating the switch, contributes to securing the abutment surfaces against the holding profile formation.
  • the compression spring is dimensioned in a favorable manner so that it does not impair the engagement system of the stop surface of the hook in the recess of the holding profile arrangement in the embodiment in which the ON switch position is to be secured. Accordingly, the compression spring of the locking button is dimensioned much weaker than a compression spring provided for pretensioning the push-button in the disengaged position.
  • FIG. 1 to 3 show an embodiment of a device 10 for mechanically securing an OFF switch position of an electrical pressure switch, which is located in a switch housing 11.
  • a switch housing 11 At the top of the switch housing 11, an opening 12 is formed with a guide 13 for a push button 14.
  • the push button 14 is provided in the middle with a rod-shaped actuation profile 15, which is connected in a manner not shown to the electrical pressure switch, and via which the push button 14 in the switch circuit 11 is biased in a manner not shown by means of a compression spring in the disengaging position shown in FIG. 1 .
  • the pushbutton 14 is hollow in the form of a pusher cap and has an identically formed retaining profile molding 16 on its inside on two diametrically opposite sides.
  • a locking button 17 is held on the housing 11 by means of a guide molding 18 which can be seen in FIG. 2. 1 engages around an angled section 19 of a fork-shaped slider 20. On the angled section 19, a pin 21 is fastened, on which the locking button 17 is fastened. A weak compression spring 23 is held between the angled section 19 and a housing recess 22.
  • the fork-shaped slide 20 has a yoke section 24 on which the angled section 19 engages off-center.
  • the fork-shaped slide 20 includes fork tines 25 which are guided in the housing 11 in dovetail grooves in the actuating direction of the locking button 17 in a form-fitting manner.
  • the fork tines 25 open into fork ends 26 which are angled upwards, which have a horizontal abutment surface 27 and a lateral abutment surface 28 for the securing attack on the lower end of the associated holding profile formation 16.
  • the indentation of the angled fork ends 26 is indicated by dashed lines, in which the lower ends of the retaining profile formations 16 are unlocked and the push button 14 can be pressed in to actuate the electrical pressure switch.
  • FIG. 4 and 5 show, in a section similar to FIG. 2, a further exemplary embodiment of a device according to the invention, which is modified only with regard to the design of the fork ends 26 and the retaining profile projections 16 with a view to mechanically securing an ON switch position of an electrical pressure switch.
  • the pressure switch button 14 has inlet cavities 35 and 36 for the angled fork ends 26 in the ON switch position of the pressure switch.
  • the fork ends 26 have a laterally formed hook 31 with a stop surface 32 on the underside.
  • the holding profile formations 16 have a recess 33 into which, as can be seen from FIG. 5, the molded hook 31 can be pressed in when the push-button 14 is pressed in so that its stop face 32 on the underside rests flat against an edge of the recess 33, this engagement state being not due to the Release spring shown for the push button 14 is secured so that the hook is not pulled out of the recess 33 by the action of the compression spring 23 for the locking button 17. From the locked ON switch position shown in FIG. 5, a slight pushing in of the push-button 14 is sufficient to disengage the hook 31 from engagement with the recess 33 of the retaining profile formation 16. The pushbutton 14 then returns to its OFF position shown in FIG. 4 under the action of the release spring.

Landscapes

  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Keying Circuit Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
EP95112598A 1994-09-16 1995-08-10 Dispositif de sécurité mécanique agissant sur la commutation d'un bouton-poussoir électrique Expired - Lifetime EP0702381B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433083A DE4433083A1 (de) 1994-09-16 1994-09-16 Vorrichtung zur mechanischen Sicherung einer Schaltstellung eines elektrischen Druckschalters
DE4433083 1994-09-16

Publications (2)

Publication Number Publication Date
EP0702381A1 true EP0702381A1 (fr) 1996-03-20
EP0702381B1 EP0702381B1 (fr) 1997-11-05

Family

ID=6528431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112598A Expired - Lifetime EP0702381B1 (fr) 1994-09-16 1995-08-10 Dispositif de sécurité mécanique agissant sur la commutation d'un bouton-poussoir électrique

Country Status (6)

Country Link
EP (1) EP0702381B1 (fr)
AT (1) ATE160047T1 (fr)
DE (2) DE4433083A1 (fr)
DK (1) DK0702381T3 (fr)
ES (1) ES2108528T3 (fr)
GR (1) GR3025587T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174892A2 (fr) * 2000-07-17 2002-01-23 Heinrich Kopp AG Dispositif de verrouillage mécanique pour les positions marche et arrêt d'un interrupteur à bouton-poussoir
EP1936645A1 (fr) 2006-12-21 2008-06-25 Defond Components Limited Interrupteur pour produire une connexion et une interruption brusques des contacts électriques
EP1947665A1 (fr) * 2007-01-19 2008-07-23 Giga Game System, SL Bouton-poussoir
WO2020067706A1 (fr) * 2018-09-27 2020-04-02 Samsung Electronics Co., Ltd. Appareil de cuisson

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2852217B2 (ja) * 1995-10-26 1999-01-27 リョービ株式会社 トリガースイッチ
DE19745100B4 (de) * 1996-10-22 2007-01-04 Marquardt Gmbh Elektrischer Schalter
DE19962002A1 (de) * 1999-12-22 2001-06-28 Marquardt Gmbh Elektrischer Schalter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662136A (en) * 1971-05-20 1972-05-09 Leviton Manufacturing Co Trigger mechanism for power tool
FR2237291A1 (fr) * 1973-07-14 1975-02-07 Marquardt J & J
AU585528B2 (en) * 1984-09-05 1989-06-22 S.C. Johnson & Son, Inc. Safety switch in handle of electric floor polisher
US5136130A (en) * 1991-04-02 1992-08-04 Waxing Corporation Of America Locking actuator trigger button for electrical switch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461556A (en) * 1967-07-10 1969-08-19 Sunbeam Corp Trigger switch for electric appliance
DE2254554C3 (de) * 1972-11-08 1979-08-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einschalter für eine elektromotorisch angetriebene Handwerkzeugmaschine
DE2315841C3 (de) * 1973-03-30 1981-11-19 Robert Bosch Gmbh, 7000 Stuttgart Im Handgriff einer elektromotorisch angetriebenen Handwerkzeugmaschine angeordnete Betätigungsvorrichtung
JPH02137723U (fr) * 1989-04-21 1990-11-16
DE8908924U1 (de) * 1989-07-22 1989-09-14 Gardena Kress + Kastner Gmbh, 7900 Ulm Sicherheitsschalteinrichtung für Elektrogeräte, insbesondere elektrisch angetriebene Handarbeitswerkzeuge
GB2240877B (en) * 1989-10-26 1994-06-01 Black & Decker Inc Hand tool with lock-on/lock-off mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662136A (en) * 1971-05-20 1972-05-09 Leviton Manufacturing Co Trigger mechanism for power tool
FR2237291A1 (fr) * 1973-07-14 1975-02-07 Marquardt J & J
AU585528B2 (en) * 1984-09-05 1989-06-22 S.C. Johnson & Son, Inc. Safety switch in handle of electric floor polisher
US5136130A (en) * 1991-04-02 1992-08-04 Waxing Corporation Of America Locking actuator trigger button for electrical switch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174892A2 (fr) * 2000-07-17 2002-01-23 Heinrich Kopp AG Dispositif de verrouillage mécanique pour les positions marche et arrêt d'un interrupteur à bouton-poussoir
EP1174892A3 (fr) * 2000-07-17 2004-03-03 Heinrich Kopp AG Dispositif de verrouillage mécanique pour les positions marche et arrêt d'un interrupteur à bouton-poussoir
EP1936645A1 (fr) 2006-12-21 2008-06-25 Defond Components Limited Interrupteur pour produire une connexion et une interruption brusques des contacts électriques
EP1936645B1 (fr) * 2006-12-21 2013-07-03 Defond Components Limited Interrupteur pour produire une connexion et une interruption brusques des contacts électriques
EP1947665A1 (fr) * 2007-01-19 2008-07-23 Giga Game System, SL Bouton-poussoir
WO2020067706A1 (fr) * 2018-09-27 2020-04-02 Samsung Electronics Co., Ltd. Appareil de cuisson
US11143411B2 (en) 2018-09-27 2021-10-12 Samsung Electronics Co., Ltd. Cooking appliance
US11649968B2 (en) 2018-09-27 2023-05-16 Samsung Electronics Co., Ltd. Cooking appliance

Also Published As

Publication number Publication date
ATE160047T1 (de) 1997-11-15
GR3025587T3 (en) 1998-03-31
DK0702381T3 (da) 1998-05-18
ES2108528T3 (es) 1997-12-16
DE59500947D1 (de) 1997-12-11
EP0702381B1 (fr) 1997-11-05
DE4433083A1 (de) 1996-03-21

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