EP0024594A1 - Sicherungssockel zum Verspannen an Tragschienen - Google Patents

Sicherungssockel zum Verspannen an Tragschienen Download PDF

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Publication number
EP0024594A1
EP0024594A1 EP80104646A EP80104646A EP0024594A1 EP 0024594 A1 EP0024594 A1 EP 0024594A1 EP 80104646 A EP80104646 A EP 80104646A EP 80104646 A EP80104646 A EP 80104646A EP 0024594 A1 EP0024594 A1 EP 0024594A1
Authority
EP
European Patent Office
Prior art keywords
fuse
tab
screw
fuse base
tabs
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Withdrawn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
EP80104646A
Other languages
German (de)
English (en)
French (fr)
Inventor
Franz Kost
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0024594A1 publication Critical patent/EP0024594A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/2005—Bases for supporting the fuse; Separate parts thereof for use with screw-in type 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
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/205—Electric connections to contacts on the base
    • H01H2085/2055—Connections to bus bars in an installation with screw in type fuses or knife blade fuses

Definitions

  • the invention relates to a fuse base, in particular for fuse links, which are held between the base and a screw cap, the holder of which has tabs on the front that can be operated for tensioning on busbars (DE-AS 10 85 604).
  • fuse bases In previously known designs, a relatively large amount of space is required, since the fuse bases can be removed from the rail by tilting or turning. To save construction volume, fuse bases are also screwed onto power rails. This requires drilling and tapping the rails.
  • the invention has for its object to develop a fuse base that can be placed on busbars with front operated tabs in a small space.
  • the solution to the described problem is that the tab on an operating pin is arranged in an increasingly rotationally fixed manner in its end region.
  • the operating pin can in particular be a screw which is notched at its free end. If you then press the screws to loosen the fuse base, the associated tab is securely taken along in its notched end area and thereby swung out. At the end of the actuation area of the screw, that is, at the end of the screw shaft, the tab is thus taken safely. At the same time, the tab becomes captive due to the notching.
  • the tab When the screw is tightened, the tab is first carried along until it finds increased resistance to twisting under the conductor rail, for example by a stop, and the tab is increasingly released when the screw is tightened further. Likewise, when loosening the screw, it is ensured that the tab is pivoted out at least in the end region, if it was not previously carried along due to the frictional force between screw thread and tab, when loosening.
  • the mounting of the fuse base is made easier if a spring element is arranged around the screw between its front side and the tab, which on the one hand stands on the tab and on the other hand on the base. This also secures the fuse base against loosening in the event of vibrations and heating play.
  • the spring element can be designed as a helical spring.
  • two tabs are arranged diagonally to a gutter in the bottom of the fuse base.
  • the gutter can be designed so that it just receives the busbar. When tightening and loosening the screws, the fuse base is then secured against twisting by the gutter. Expediently, the swivel path of the tabs is limited by stops.
  • the fuse base 1 according to FIG. 1 sits on a conductor rail 2 like a rider.
  • a screw cap of the usual type can be screwed into a so-called threaded goggles 3, which covers a fuse link and at the same time makes contact with the threaded goggles 3 and the outgoing terminal 4.
  • the foot contact of the fuse link is acted upon by the busbar 2.
  • tabs 5 are arranged on a screw 6. It is essential that the tab 5 is arranged on the screw 6 in such a way that it is increasingly non-rotatably connected in the end region of the screw shaft, as is achieved by notching at point 7 of the screw 6. This point 7 is to be provided where the tab releases the busbar 2 when it is released. It is expedient to use screws which are as short as possible, so that the end of the screw must then be scored.
  • the friction between the screw and the lug is increasingly increased in the notched area when turning further.
  • the effect of the notched screw can be compared with a coupling that engages at point 7.
  • a spring element 8 is arranged around the screws 6 between their front side and the tab 5, which rests on the one hand on the tab 5 and on the other hand on the base 1.
  • the spring element 8 is designed as a helical spring.
  • a groove 9 is formed on the bottom of the fuse base, which receives the mounting rail 2.
  • Two diagonally opposite tabs 5 are usually sufficient. This arrangement can be seen more clearly from FIG. 2.
  • the tabs 5 are first aligned parallel to the mounting rail 2. The tabs are then in the vicinity of point 7 according to FIG. 1. If the screws 6 are then tightened, the tabs 5 pivot under the mounting rail 2, where they can find a stop 10 on the base in the usual way. The screw 6 can then be tightened further and the tabs 5 brace against the mounting rail 2. To loosen the socket, the screws 6 are rotated in the opposite direction of rotation until the tabs 5 stand out from the mounting rail 2 and into the area of the screw shaft, where an increased friction between the screw and the tab takes it safely against its pivoting direction.
  • the friction is generally increased by the spring element 8, which promotes the safe entrainment of the tab 5.
  • the stop 10 can advantageously be supplemented by a stop 11 at right angles to the stop 10, as can be seen from FIGS. 1 and 2.
  • the stop 11 limits the pivoting movement when loosening.
  • the stops 10 and 11 can be formed by an angular recess in the fuse base.

Landscapes

  • Fuses (AREA)
  • Control Of Electrical Variables (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Saccharide Compounds (AREA)
EP80104646A 1979-08-23 1980-08-06 Sicherungssockel zum Verspannen an Tragschienen Withdrawn EP0024594A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792934201 DE2934201A1 (de) 1979-08-23 1979-08-23 Sicherungssockel zum verspannen an tragschienen
DE2934201 1979-08-23

Publications (1)

Publication Number Publication Date
EP0024594A1 true EP0024594A1 (de) 1981-03-11

Family

ID=6079165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104646A Withdrawn EP0024594A1 (de) 1979-08-23 1980-08-06 Sicherungssockel zum Verspannen an Tragschienen

Country Status (8)

Country Link
EP (1) EP0024594A1 (da)
JP (1) JPS5635341A (da)
BR (1) BR8005294A (da)
DE (1) DE2934201A1 (da)
DK (1) DK358080A (da)
ES (1) ES252658Y (da)
GR (1) GR69861B (da)
NO (1) NO802474L (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4838391B1 (ja) * 2011-03-18 2011-12-14 直樹 山田 根菜おろし器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813056C (de) * 1949-02-22 1951-11-26 Elge Verken Ab Elektrisches Sicherungselement
DE837266C (de) * 1951-01-30 1952-04-21 Gustav Hensel Elektrotechnisch Auf einer Stromfuehrungsschiene reiterartig sitzendes Sicherungselement
DE1085604B (de) * 1955-04-07 1960-07-21 Gustav Hensel Elektrotechnisch Reiterartig auf einer Stromfuehrungsschiene sitzendes Sicherungselement
DE1886958U (de) * 1960-01-06 1964-02-06 Weber Ag Fab Elektro Sicherungselement, das zur montage auf stromfuehrenden schienen bestimmt ist.
DE2151642B2 (de) * 1971-10-16 1975-02-27 Hans 7500 Karlsruhe Schade Sicherungssockel für Reihenanordnung
DE7924047U1 (de) * 1979-08-23 1979-11-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Sicherungssockel zum Verspannen an Tragschienen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813056C (de) * 1949-02-22 1951-11-26 Elge Verken Ab Elektrisches Sicherungselement
DE837266C (de) * 1951-01-30 1952-04-21 Gustav Hensel Elektrotechnisch Auf einer Stromfuehrungsschiene reiterartig sitzendes Sicherungselement
DE1085604B (de) * 1955-04-07 1960-07-21 Gustav Hensel Elektrotechnisch Reiterartig auf einer Stromfuehrungsschiene sitzendes Sicherungselement
DE1886958U (de) * 1960-01-06 1964-02-06 Weber Ag Fab Elektro Sicherungselement, das zur montage auf stromfuehrenden schienen bestimmt ist.
DE2151642B2 (de) * 1971-10-16 1975-02-27 Hans 7500 Karlsruhe Schade Sicherungssockel für Reihenanordnung
DE7924047U1 (de) * 1979-08-23 1979-11-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Sicherungssockel zum Verspannen an Tragschienen

Also Published As

Publication number Publication date
DK358080A (da) 1981-02-24
ES252658Y (es) 1981-05-16
DE2934201A1 (de) 1981-03-26
BR8005294A (pt) 1981-03-04
GR69861B (da) 1982-07-19
JPS5635341A (en) 1981-04-08
ES252658U (es) 1980-11-16
NO802474L (no) 1981-02-24

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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

Designated state(s): AT BE CH FR GB IT NL SE

18W Application withdrawn

Withdrawal date: 19810326

D18W Application withdrawn (deleted)
RBV Designated contracting states (corrected)

Designated state(s): AT BE CH FR GB IT LI NL SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820215

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOST, FRANZ