EP0220249B1 - Sicherheitsanordnung für schalter - Google Patents

Sicherheitsanordnung für schalter Download PDF

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Publication number
EP0220249B1
EP0220249B1 EP86902803A EP86902803A EP0220249B1 EP 0220249 B1 EP0220249 B1 EP 0220249B1 EP 86902803 A EP86902803 A EP 86902803A EP 86902803 A EP86902803 A EP 86902803A EP 0220249 B1 EP0220249 B1 EP 0220249B1
Authority
EP
European Patent Office
Prior art keywords
fuse
barring
pins
box
switch
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
Application number
EP86902803A
Other languages
English (en)
French (fr)
Other versions
EP0220249A1 (de
Inventor
Lajos Kalman Denis Marot
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.)
Holec Holland NV
Original Assignee
Laur Knudsen Nordisk Elektricitets Selskab AS
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 Laur Knudsen Nordisk Elektricitets Selskab AS filed Critical Laur Knudsen Nordisk Elektricitets Selskab AS
Priority to AT86902803T priority Critical patent/ATE65147T1/de
Publication of EP0220249A1 publication Critical patent/EP0220249A1/de
Application granted granted Critical
Publication of EP0220249B1 publication Critical patent/EP0220249B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0208—Tools for inserting and removing fuses

Definitions

  • the present invention relates to a safety device for use in connection with power switches of a type known per se and comprising a substantially box-shaped breaker box with a number of one-sidedly located contact pieces which are in pairs intended to secure a fuse formed as a fuse body and two opposite terminal legs extending there from.
  • switches of the above type are often only shielded by means of mounted plastic partitions between the fuses and their holders (the contact pieces), which has resulted in a construction of switch boards, where each switch is mounted below separate doors or covers, which can only be opened when the switch in question is disconnected. This will obviously increase the price of switchboards, the daily operation of which is difficult and time-consuming.
  • SE-A-219225 and DE-B-1069270 relate to a cover with a manually operated closing handle resiliently movable for cooperation with carrier pins engaging the fuse vanes.
  • Switches with built-in safety devices are known preventing unauthorised access to live parts when the fuse has been mounted and the switch connected; however, no safety device is known, which, if desired, can be mounted as a separate unit on existing power switches of the above type and which can simultaneously offer the necessary safety.
  • a safety device is hereby obtained which can easily be mounted as a separate unit on existing power switches and will consequently imply protection against the situation, where a impatient electrician is injured during an attempt of removing or inserting a fuse by means of an available unsuitable tool while the switch is connected.
  • the safety device according to the invention prevents everybody from coming into contact at all with live parts in a connected switch via the terminal legs of the fuse by means of an inappropriate manipulation with the fuse, e.g. by an oblique insertion of the fuse into the fuse box. The space will prevent this.
  • Fig. 1 of the drawing illustrates a position indicator 15 on the axle of the handle as well as markings for the in- and out-position, "I" and "O", respectively, of the switch.
  • a respective box-shaped shielded fuse box in Figs. 1 and 2 designated 17, 19, and 21, is positioned around each pair of contact pieces, only indicated in Fig. 3 of the drawing at positions 16, there being a fuse box for each of the three phases normally available.
  • a DIN-standardized knife fuse consisting of a fuse body 23 and a terminal leg 25 in each end is inserted into each box as indicated by dotted line.
  • Each fuse box comprises in particular an outer box 27 open at the top and the bottom; said outer box carries in the inner of the central third part a chamber for the fuse body 23, said chamber being substantially U-shaped in section.
  • the chamber is formed by two inner end walls 29 and a bottom wall 31. Each inner wall 29 is at the top connected to an outer end wall through a horizontal partition 33.
  • the mutual distance between the inner end walls 29 is only somewhat greater than the length of the fuse body 23, so that only little clearance d is left between the end surfaces of the fuse body 23 and the inner end walls 29 of the fuse box.
  • end walls 29 and the horizontal partitions 33 furthermore comprise a slot 35 each allowing insertion of the terminal legs of the fuse for engaging a contact piece 16 each.
  • the fuse boxes 17, 19, and 21 may be fastened to the breaker box 11 by means of screws or suitable snap-action device; this is not illustrated in the drawing.
  • Each fuse box comprises a barring pin 41, 43, and 45, respectively, situated in the same horizontal and vertical plane and resting in suitable recesses in the side walls of the fuse boxes at a level between a horizontal partition 33 and the upper end of a contact piece 16.
  • the barring pins can be moved longitudinally between the two outermost positions by means of a suitable manoeuvring means, e.g. an appropriately formed cam disc 47 placed on the axle 13 of the handle.
  • a suitable manoeuvring means e.g. an appropriately formed cam disc 47 placed on the axle 13 of the handle.
  • the cam disc 47 has manoeuvred all barring pins to the barring position as illustrated in Fig. 2. This takes place under the surmounting of small spring forces from the springs 51, 53, and 55 ensuring the return of the pins to the neutral position when the switch is disconnected. It should be noted that as far as the two adjacent fuse boxes - which in the drawing are positioned to the right of the handle axis 13 - are concerned, the outer barring pin 45 is indirectly influenced through the inner barring pin 43.
  • Each fuse box is furthermore covered by a specially formed cover according to the invention as illustrated in Figs. 3, 4, and 5.
  • the cover provided with the general reference number 60, abuts the upper edge of the outer box walls 27 with an edge flange 61, cf. Fig. 3.
  • a central section of the cover is opened in the side walls to form a handle portion 63 and is on the underside constructed with open cells separated by partitions 65.
  • the cover is provided with carrier pins 67 for engaging eye-shaped fuse vanes 69, which by way of standard are provided at the ends of the fuse body 23 of each fuse.
  • a closing handle 71 is provided in one end wall of the cover opposite a carrier pin 67 through suitable recesses in the end wall and on the top side; the closing handle may be bent outwards, away from the center of the handle or the cover, the cover being made of a material sufficiently elastic to make such a deflection possible.
  • the closing handle 71 is furthermore provided with a downwardly projecting nose 73 for cooperation with a fuse vane 69 as illustrated in Figs. 4 and 5, which are a longitudinal sectional view of the cover 60 and a sectional view of the fuse.
  • the construction of the cover further allows the removal of a hot fuse without it being touched, as the closing handle 71 after removal from the fuse box in question is easily bent outwards by a push with a thumb, whereafter the fuse is capable of sliding off freely, if the handle is tilted at a suitable angle.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Fuses (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (3)

  1. Sicherheitsvorrichtung für einen beliebigen Leistungsschalter mit einem im wesentlichen kastenförmigen Unterbrechergehäuse (11) mit mehreren vorspringenden Kontaktstücken (16), die paarweise angeordnet sind, wobei jedes Paar die Aufgabe hat, eine Sicherung mit einem Sicherungskörper (23) und zwei gegenüberstehenden Anschlußschenkeln (25), die sich von ihm erstrecken, zu haltern, dadurch gekennzeichnet, daß die Anordnung aufweist: mehrere Sicherungskästen (17, 19, 21) zum individuellen Befestigen auf dem Unterbrecherkasten (11) und zum Abschirmen eines Paares von Kontaktstücken (16) mit einer angeschlossenen Sicherung (23, 25), jeweils einen Verriegelungsstift (41, 43, 45) für jeden Sicherungskasten, die in dem Unterbrecherkasten (11) gegen die Kraft einer Feder (51, 53, 55) zwischen einer neutralen Position und einer Verriegelungsposition in Längsrichtung verschiebbar angeordnet sind, und eine Manövriereinheit (47) zum kollektiven Betätigen der Verriegelungsstifte entweder direkt oder indirekt, so daß die Verriegelungsstifte in der Ein-Position ("I") des Schalters in die Verriegelungsposition und in der Aus-Position ("O") des Schalters in die neutrale Position verschoben werden, und wobei jeder Sicherungskasten auf seiner Innenseite mit inneren Wänden (29, 31, 33) auf solche Weise versehen ist, daß die Sicherung (23, 25) zu ihnen einen so kleinen Abstand (d) wie möglich hat, daß er eine schräge Befestigung der Sicherung unmöglich macht, und wobei die Verriegelungsstifte (41, 43, 45) in der Verriegelungsposition das Entfernen bzw. das Einsetzen einer Sicherung aus ihren bzw. in ihre entsprechenden Kontaktstücke(n) (16) unmöglich machen.
  2. Sicherheitsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß sie ferner eine Abdeckung (60) für jeden Sicherungskasten aufweist, wobei die Abdeckung ein Handhabungsteil (63) und einen starren und manuell betätigten Verschlußgriff (71) aufweist, der elastisch aus einer Ruhelage beweglich ist und mit einem Ende für das Einwirken auf eine der Sicherungsplatten (69) auf dem Sicherungskörper (23) vorgesehen ist und der Trägerstifte (67) auf der Unterseite aufweist, um in die Sicherungsplatten einzugreifen und die Sicherung zu tragen, wobei der Verschlußgriff (71) in einer Ruheposition das unbeabsichtigte Abgleiten einer Sicherungsplatte aus einem Trägerstift verhindert.
  3. Sicherheitsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Verschlußgriff (71) so ausgebildet ist, daß er selbsttätig verriegelt, wenn die Abdeckung (60) befestigt wurde.
EP86902803A 1985-04-17 1986-04-16 Sicherheitsanordnung für schalter Expired EP0220249B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86902803T ATE65147T1 (de) 1985-04-17 1986-04-16 Sicherheitsanordnung fuer schalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK174385A DK160115C (da) 1985-04-17 1985-04-17 Sikkerhedsindretning til stroemafbrydere
DK1743/85 1985-04-17

Publications (2)

Publication Number Publication Date
EP0220249A1 EP0220249A1 (de) 1987-05-06
EP0220249B1 true EP0220249B1 (de) 1991-07-10

Family

ID=8107706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86902803A Expired EP0220249B1 (de) 1985-04-17 1986-04-16 Sicherheitsanordnung für schalter

Country Status (5)

Country Link
EP (1) EP0220249B1 (de)
AU (1) AU588595B2 (de)
DK (1) DK160115C (de)
FI (1) FI86012C (de)
WO (1) WO1986006221A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204238C2 (de) * 1992-02-13 2000-06-21 Moeller Gmbh Einschub mit einer schaltbaren NH-Sicherungsleiste für Einschubverteiler

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9308495U1 (de) * 1993-06-07 1994-10-20 Weber AG, Emmenbrücke Ein- oder mehrpolige NH-Sicherung
PL195723B1 (pl) 1999-07-22 2007-10-31 Klaus Bruchmann Zespół przełącznikowo-bezpiecznikowy z urządzeniem blokującym
DE29913698U1 (de) 1999-08-05 1999-11-04 Bruchmann, Klaus, 96450 Coburg Mehrpolige Schaltersicherungsanordnung für Sammelschienensysteme

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361514C (de) * 1922-10-16 Voigt & Haeffner Akt Ges Verriegelungsanordnung zwischen mehr als zwei Schalterantrieben
US2342852A (en) * 1942-11-19 1944-02-29 Bulldog Electric Prod Co Switch
DE1069270B (de) * 1956-08-11 1959-11-19 Siemens Ag Sicherungsgriffzange zum einsetzen von nh-sicherungen
GB859084A (en) * 1956-09-07 1961-01-18 English Electric Co Ltd Improvements in and relating to electric fusegear
DE1150434B (de) * 1958-02-10 1963-06-20 Bassani Spa Verriegelnder elektrischer Kippschalter
DE2618360C3 (de) * 1976-04-27 1983-11-03 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Sicherungssockel mit eingebautem Schalter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204238C2 (de) * 1992-02-13 2000-06-21 Moeller Gmbh Einschub mit einer schaltbaren NH-Sicherungsleiste für Einschubverteiler

Also Published As

Publication number Publication date
FI865055A7 (fi) 1986-12-11
FI86012B (fi) 1992-03-13
FI865055A0 (fi) 1986-12-11
DK174385A (da) 1986-10-18
AU588595B2 (en) 1989-09-21
DK174385D0 (da) 1985-04-17
DK160115B (da) 1991-01-28
FI86012C (fi) 1992-06-25
DK160115C (da) 1991-07-01
WO1986006221A1 (en) 1986-10-23
EP0220249A1 (de) 1987-05-06
AU5811386A (en) 1986-11-05

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