EP0247006B1 - Bauart von messerförmigen Kontakten für elektrisches Gerät - Google Patents

Bauart von messerförmigen Kontakten für elektrisches Gerät Download PDF

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Publication number
EP0247006B1
EP0247006B1 EP87830150A EP87830150A EP0247006B1 EP 0247006 B1 EP0247006 B1 EP 0247006B1 EP 87830150 A EP87830150 A EP 87830150A EP 87830150 A EP87830150 A EP 87830150A EP 0247006 B1 EP0247006 B1 EP 0247006B1
Authority
EP
European Patent Office
Prior art keywords
plate
casing
connector
screw means
electrical appliance
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.)
Expired - Lifetime
Application number
EP87830150A
Other languages
English (en)
French (fr)
Other versions
EP0247006A2 (de
EP0247006A3 (en
Inventor
Bruno Gelati
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.)
Elettro Gibi SpA
Original Assignee
Elettro Gibi SpA
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 Elettro Gibi SpA filed Critical Elettro Gibi SpA
Publication of EP0247006A2 publication Critical patent/EP0247006A2/de
Publication of EP0247006A3 publication Critical patent/EP0247006A3/en
Application granted granted Critical
Publication of EP0247006B1 publication Critical patent/EP0247006B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  

Definitions

  • the present invention relates to a blade connector structure which can be fitted to an electrical appliance, in particular to a domestic electrical appliance incorporating an attachment by which preliminary connection of the supply cable and earthing of the metal casing thereof can be achieved.
  • the document DE-U-8 226 692 discloses a blade connector structure for connecting an electrical supply cable to the internal wiring of an electrical appliance, it comprises an elongated body of insulating material having at one end an elongated projection extending axially and laying in a longitudinal median plane to either side of which are fixed respective conductive connector elements each having blade contacts.
  • the reference US-A-3 188 596 discloses and electrical connector structure wherein blade connectors are used and, spaced apart from the connectors there is fixed a shaped metal plate provided with means for retaining an earthing wire and means for electrical connection thereof to the casing of the electrical apparatus to which the connector is to be fitted.
  • the object of the present invention is that of eliminating the previously indicated disadvantage by providing a blade connector structure which is able to simplify the supply and, in particular the connection between the casing of an electrical appliance and the earth connection in the greatest possible manner.
  • a blade connector structure for connecting an electrical supply cable to the internal wiring of an electrical appliance, having the features of the main claim.
  • a particular advantage of the invention is that of providing a blade connector structure which allows the preliminary connection of the supply cable, complete with the said earthing cable to be effected.
  • Another advantage of the present invention is that of providing a blade connector structure which is easy to fit with a minimum of substantially elementary operations from the outside of the casing of a domestic electrical appliance or the like.
  • a further advantage of the present invention is that of providing a blade connector structure which is constructionally simple and of great reliability.
  • the connector structure of the invention comprises a body 2 of insulating material having an elongate conformation with a flat plate-like longitudinally extending projection 3 at one end lying in a median axial plane, and a generally disc-like transversely enlarged head portion 4 at the other end with a central coaxial aperture for receiving an electrical connector cable 21 of conventional 3-core type having two current-carrier wires 16 and an earthing wire 12.
  • This elongate body is shaped in such a way as to define, on opposite sides of the said median projection 3, corresponding seats to receive blade contacts 5 to which the current-carrier wires 16 are connected by means of a clamping screw 6.
  • a substantially flat portion 7 provided with elastically deformable upwardly extending projections 8 which are able to retain a metal plate 9 provided with corresponding apertures 10.
  • This plate in particular, has a threaded hole for the engagement of a clamping screw 11 for forming an electrical connection between the earthing wire 12 and the small plate 9 itself.
  • This plate moreover, is provided with one or more right angle projections 13 provided with special small teeth having an enamel-breaking formation to make certain of the earthing contact to the casing of the apparatus the exterior of which is usually coated in enamel or other protective coating.
  • the said right angle projections 13 extend orthogonally of the axis of the body 2 generally tangentially of the disc-like head end portion 4 thereof.
  • this latter has a substantially rectangular or oval transverse section matching the shape of an aperture 17 in a panel 18 of the casing of the electrical appliance to which the connector is to be fitted as shown in Figures 1,2 and 5.
  • the connector 1 with the supply cable 21 preliminarily fitted thereto and the earth wire 12 connected to the plate 9 by the screw 11, is inserted into the aperture 17 in the casing 18 of the domestic electrical appliance.
  • the panel 18 is also formed with two through-holes 19 to receive the shanks of corresponding, preferably self-tapping screws 20 by which the right angle brackets 13 of the small plate 9 can be connected to the casing panel 18 thereby securing the connector 1 to the panel 18 and at the same time connecting the earth wire 12 to the casing panel 18.
  • the connector 1 can be mounted and dismounted directly from the exterior of the apparatus.
  • the body 2 is provided, close to the disc-like enlarged head end 4, with resilient teeth 15 which serve to retain the body 2 in position when fitted into the aperture 17.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Multi-Conductor Connections (AREA)

Claims (6)

  1. Messerförmigen Kontakt (1) zum Schalten eines Stromzuführungskabel (21) mit der inneren Verdrahtung eines elektrischen Geräts, wobei der obengenannten Kontakt mit einem aus isolierendem Material bestehenden verlängerten Körper (2) versehen ist, der an ein Ende eine verlängerte Vorsprung (3) weist auf, die axial erstreckt sich und auf eine longitudinale mittlere Ebene liegt, auf deren andere Ebene entsprechende konduktiven Kontaktelementen (5) befestigt sind, jedes eine mit elektrokonduktiven messerförmigen Kontakte versehen ist, wobei dieser Körper (2) eine wesentlich flache Portion (7) weist auf, wobei diese flache Portion mit mehreren umformbaren Vorsprünge (8) versehen sind, die zum Festhalten eines Metallplättchens (9) dient, das zum mechanischen Festmachen und elektrischen Erden des obengenannten Kontaktes und mit ersten Schraubenmitteln (11) zum Spannen eines Erdungskabels (12) und zweiten Schraubenmitteln (20) zur abnehmbaren Schalten der obengenannten Plättchen und Kontakt in einer Öffnung (17) eines Kastens (18) des obengenannten elektrischen Geräts versehen ist, wobei der obengenannten verlängerte Körper (2), an das dem obengenannten verlängerten Vorsprung (3) entgegengesetzte Ende, mit einem erweiterten scheibenförmigen Kopfportion (4) versiet, wobei Spannenschraubenelementen (6) zum Schalten der Enden der Stromleitern (16) mit dem obengenannten Kontaktelementen (5) versehen sind, wobei das obengenannte Plättchen (9) eine Gewindebohrung zum Spannen der obengenannten ersten Schraubenelementen (11) weist auf, um so eine Schaltung zwischen dem Erdungskabel (12) und dem obengenannten Plättchen (9) zu bilden, wobei das obengenannte Plättchen (9), ausserdem, mit rechteckigen Vorsprüngen (13) versehen ist, die, zum Aufnehmen der obengenannten zweiten Schraubenelementen (20), Durchgangslöcher weist auf, wobei, zum elektrischen und mechanischen Schalten des Plättchens (9) mit dem Kasten, die obengenannten zweiten Schraubenelementen (20) von aussen des obengenannten Geräts angetrieben werden können.
  2. Messerförmigen Kontakt nach Anspruch 1, dadurch gekennzeichnet, dass der obengenannte Isolierungskörper (2), anliegend der scheibenförmigen Endkopfportion (4), einen Teil weit auf, der einen wesentlich rechteckige Querschnitt besitzt, von deren entgegengesetzten Seiten entsprechenden kerbzähigen umformbaren Zähnen (15) vorspringen.
  3. Messerförmigen Kontakt nach Anspruch 1, dadurch gekennzeichnet, dass die obengenannten zweiten Schraubenelementen (20), zum Schalten des obengenannten Plättchens (9) mit dem obengenannten Kasten (18) des obengenannten elektrischen Geräts, mit verformten Zähnen versehen ist, die als Emailunterbrechung wirken.
  4. Messerförmigen Kontakt nach Anspruch 1, dadurch gekennzeichnet, dass die obengenannten Vorsprungen (13) des obengenannten Metallplättchens (9) mit zwei Federn (13) versehen sind, die um 90° zur Ebene des Plättchens gebogen ist und neben einer Gewindebohrung liegt, wo der Erdungsdraht befestigt wird.
  5. Elektrisches Gerät mit einem messerförmigen Kontakt (1) nach jeden vorhergehenden Ansprüchen, dadurch gekennzeichnet, dass das elektrische Gerät in dem obengenannten Kasten mit zwei, anliegend der obengenannten Öffnung (17), Durchgangslöcher (19) versehen ist, um so die Spindeln der entsprechenden selbsteinschneidenden Schrauben aufzunehmen, somit das obengenannten Metallplättchen (9) mit derselben Kastentafel (18) geschaltet ist.
  6. Elektrisches Gerät nach Anspruch 5, dadurch gekennzeichnet, dass die obengenannte Öffnung (17), in der obengenannten Kastentafel (18), mit zwei durchschnittlich entgegengesetzten Aufnahmen versehen ist, somit das Einlegen und Abnehmen des Körpers (2) des Kontaktes (1), von aussen des Geräts zu erleichtern.
EP87830150A 1986-05-23 1987-04-17 Bauart von messerförmigen Kontakten für elektrisches Gerät Expired - Lifetime EP0247006B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20560/86A IT1188728B (it) 1986-05-23 1986-05-23 Struttura di connettore lamellare,applicabile su apparecchi a funzionamento elettrico, in particolare,su apparecchi elettrodomestici e simili,inglobante un attacco suscettibile di consentire il pre-cablaggio del cavo di alimentazione e della messa a terra dell'involucro metallico degli stessi
IT2056086 1986-05-23

Publications (3)

Publication Number Publication Date
EP0247006A2 EP0247006A2 (de) 1987-11-25
EP0247006A3 EP0247006A3 (en) 1989-03-15
EP0247006B1 true EP0247006B1 (de) 1993-04-14

Family

ID=11168793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87830150A Expired - Lifetime EP0247006B1 (de) 1986-05-23 1987-04-17 Bauart von messerförmigen Kontakten für elektrisches Gerät

Country Status (3)

Country Link
EP (1) EP0247006B1 (de)
DE (1) DE3785390T2 (de)
IT (1) IT1188728B (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072873A (en) * 1960-06-20 1963-01-08 Albert D Traher Electrical plug adaptor
US3188596A (en) * 1962-07-02 1965-06-08 Gen Electric Wiring device with simplified grounding and mounting means

Also Published As

Publication number Publication date
IT1188728B (it) 1988-01-28
IT8620560A0 (it) 1986-05-23
DE3785390D1 (de) 1993-05-19
DE3785390T2 (de) 1993-07-29
EP0247006A2 (de) 1987-11-25
EP0247006A3 (en) 1989-03-15

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