EP0361241A2 - Manette à trois positions - Google Patents

Manette à trois positions Download PDF

Info

Publication number
EP0361241A2
EP0361241A2 EP89117138A EP89117138A EP0361241A2 EP 0361241 A2 EP0361241 A2 EP 0361241A2 EP 89117138 A EP89117138 A EP 89117138A EP 89117138 A EP89117138 A EP 89117138A EP 0361241 A2 EP0361241 A2 EP 0361241A2
Authority
EP
European Patent Office
Prior art keywords
pushbutton
push button
stop function
pressed
contact piece
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Withdrawn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
EP89117138A
Other languages
German (de)
English (en)
Other versions
EP0361241A3 (fr
Inventor
Helmut Dipl.-Ing. Riss (Fh)
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0361241A2 publication Critical patent/EP0361241A2/fr
Publication of EP0361241A3 publication Critical patent/EP0361241A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/506—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member with a make-break action in a single operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/028—Application dead man switch, i.e. power being interrupted by panic reaction of operator, e.g. further pressing down push button

Definitions

  • the object of the invention is to provide a three-layer handle of the type mentioned in such a way that, without special electronic safety precautions, a safe withdrawal of the stop function when the switch button is fully pressed into the stop function when the switch button is not pressed is ensured.
  • this object is achieved in that the opening and closing of the circuit is effected by an electrical make contact, the movable contact piece of which is held between a stationary spring element and a spring element connected to the pushbutton, so that the contact is closed at a defined pushbutton path , however, a depression of the pushbutton beyond this pushbutton path is possible, in which case an actuating element connected to the pushbutton causes the mechanical contact piece to be reset to the position present when the pushbutton is not pressed.
  • a first embodiment of the invention is characterized in that the spring element provided between the movable contact piece and the push button can be detached from its holder via the mechanical counterpart.
  • a stop function due to the fully pressed switch button thus leads to a state from which the switch button can no longer be easily reset to the central position. This is advantageous as a stop function indicates a panic reaction of the operator due to the fully depressed switch button.
  • the spring element released from its holder can be connected to the holder again via an actuating element. Only this defined additional action enables regular operation of the three-layer handle.
  • the basic structure of a three-layer handle is shown in the form of a schematic drawing, which has a make contact, which consists of a stationary contact piece K and a movable contact piece KS.
  • the movable contact piece KS is held between two spring elements, a spring F1 with a stationary bearing and a spring F2 so that the contact piece KS is opened with respect to the contact piece K without external force.
  • a key T connected to the spring F2 is in the position shown. If the key T is depressed in the direction indicated by an open part, the contact piece KS moves in the direction shown by a hatched arrow towards the contact piece K until contact is made at a defined pressure point. Only this state closes an electrical circuit (not shown for the sake of clarity) which must be effective for starting up a robot or another machine.
  • a pressure piece D is arranged, which then, when the button T is moved further in the direction shown by the open arrow beyond the pressure point, abuts a counterpart G which, via a two-armed lever HE, the movement of the Pressure piece D deflects and via a plunger ST, at the free end of which a nose N is arranged, which is about a bracket H with the contact piece KS connects the end of the spring F2 from the bracket H.
  • the spring F2 then jumps to the position indicated by the dashed line and the spring F1 opens the contact due to its compressive force against the direction indicated by the dashed arrow.
  • the contact piece KS can initially no longer be actuated by actuating the key T, unless an actuating element B, which is connected to the spring F2, in turn is inserted into the holder H.

Landscapes

  • Push-Button Switches (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP19890117138 1988-09-29 1989-09-15 Manette à trois positions Withdrawn EP0361241A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8812349U 1988-09-29
DE8812349U DE8812349U1 (de) 1988-09-29 1988-09-29 Dreilagenhandgriff

Publications (2)

Publication Number Publication Date
EP0361241A2 true EP0361241A2 (fr) 1990-04-04
EP0361241A3 EP0361241A3 (fr) 1991-11-21

Family

ID=6828448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890117138 Withdrawn EP0361241A3 (fr) 1988-09-29 1989-09-15 Manette à trois positions

Country Status (2)

Country Link
EP (1) EP0361241A3 (fr)
DE (1) DE8812349U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7777146B2 (en) 2006-03-28 2010-08-17 Rockwell Automation Limited Safety switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470441A3 (en) * 1990-08-06 1992-05-27 Siemens Aktiengesellschaft Method for communication of an acknowledgement signal for operating a robot
DE4101493C2 (de) * 1991-01-19 2001-07-19 Schlegel Georg Gmbh & Co Elektrischer Schalter mit einer Kontaktvorrichtung und einem Stößel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947840A (en) * 1958-04-25 1960-08-02 Cutler Hammer Inc Electric switch
DE6913623U (de) * 1969-04-03 1969-10-16 Konrad Blindzellner Sicherheitsschalter fuer handmaschinen
FR2609572B1 (fr) * 1987-01-13 1991-01-18 Renaud Michel Dispositif de securite pour machine outil electro-portative

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7777146B2 (en) 2006-03-28 2010-08-17 Rockwell Automation Limited Safety switch

Also Published As

Publication number Publication date
EP0361241A3 (fr) 1991-11-21
DE8812349U1 (de) 1989-07-27

Similar Documents

Publication Publication Date Title
DE3719839C1 (de) Drucktasteneinrichtung
DE2335972A1 (de) Schalter, insbesondere fuer ein elektrisches handwerkzeug
DE69228001T2 (de) Sicherheitsschalter für arbeitsmaschinen
EP0956576B1 (fr) Appareil de commutation avec position de declenchement du mecanisme de verrouillage
EP0361241A2 (fr) Manette à trois positions
DE10322654B4 (de) Schaltgerät
DE60128356T2 (de) Mechanische rücksetzvorrichtung für schalter
DE1911104C3 (de) Elektrischer Schnappschalter
DE3006405A1 (de) Elektrisch betriebenes handgeraet
DE1061418B (de) Elektrischer, mit Kippbetaetigungsgriff versehener Schalter, insbesondere Leitungsschutzschalter
DE1590037A1 (de) Schalter
DE2348568A1 (de) Sicherungsautomat
DE693932C (de) Schalter mit Vorrichtung zur Ausloeschung des Schaltlichtbogens durch eine ihn bespuelende Loeschmittelstroemung
DE809051C (de) Unfallschutzvorrichtung
DE114542T1 (de) Kontaktor mit elektromagnetisch bedienter aktion und automatischer oeffnung im fall einer ueberspannung.
EP0254161A1 (fr) Bouton-poussoir d'actionnement pour interrupteur à touche
DE902400C (de) Elektromagnetisches Schaltrelais mit Haupt- und Vorkontakt, insbesondere zur Verwendung als Schaltschuetz in Roentgenapparaten
DE2044643B2 (de) Druckgasschalter
DE3441366C2 (fr)
DE1055089B (de) Zwangslaeufige Verriegelungseinrichtung fuer elektrische Kleinschalter
EP0932174A2 (fr) Appereil de communication avec fonction de sécurité
EP0046480A2 (fr) Dispositif de verrouillage pour boutons de commande des appareils de commutation électriques
DE1015903B (de) Elektrische Sicherheitsschaltung fuer die Zweihand-Einrueckung von Arbeitsmaschinen, insbesondere Pressen
DE1816410C (de) Motor- oder Leitungsschutzschalter
DE858061C (de) Elektrische Schutzeinrichtung fuer Werkzeug- oder Arbeitsmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19901205

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 19940124

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19940607