DE754055C - Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body for fuses of the D system - Google Patents

Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body for fuses of the D system

Info

Publication number
DE754055C
DE754055C DEW111399D DEW0111399D DE754055C DE 754055 C DE754055 C DE 754055C DE W111399 D DEW111399 D DE W111399D DE W0111399 D DEW0111399 D DE W0111399D DE 754055 C DE754055 C DE 754055C
Authority
DE
Germany
Prior art keywords
metal
metal screw
putty
fitting body
ring
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
DEW111399D
Other languages
German (de)
Inventor
Hans Bubenheim
Josef Wickmann
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.)
Wickmann Werke AG
Original Assignee
Wickmann Werke 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 Wickmann Werke AG filed Critical Wickmann Werke AG
Priority to DEW111399D priority Critical patent/DE754055C/en
Application granted granted Critical
Publication of DE754055C publication Critical patent/DE754055C/en
Expired legal-status Critical Current

Links

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
    • H01H85/24—Means for preventing insertion of incorrect fuse

Landscapes

  • Ceramic Products (AREA)

Description

.Kittlose Befestigung der Metallschraube von Paßringen im keramischen Paßkörper -bei Schmelzsicherungen des ..D-Systems Die Metallschrauben finden V-Paßeinsätzen für Sicherungselemente wurden bis jetzt üb- licherweise eingekittet. Diese Einkittungen. haben .durchweg den Nachteil, daß bei höheren Temperaturen der Kitt zerstört wird oder die keramischen Teile gesprengt werden. Auch ist. bereits eine kittlose Befestigung bekannt-.geworden,- in der von außen eine Metallkappe zur Befestigung verwendet wird. Diese Befestigungsart ist einerseits ziemlich teuer, an= dererseits auch: nicht zuverlässig, "da heim Erwärmen der Metallteile sich das Steatitteil lockern und- herausfallen kann. Ebenso ist es bekannt, die beiden Teile durch Verschraubung des Metallteiles mit dem keramischen Körper. gegeneinanderzuhalten. :Die Ausführungsart stellt jedoch eine lösbare Verbindung dar und ist außerdem für die Massenherstellung zu teuer..Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body - in the case of fuses of the ..D system . Up until now, the metal screws have V-fitting inserts for fuse elements that have usually been cemented. These putties. consistently have the disadvantage that at higher temperatures the putty is destroyed or the ceramic parts are blown. Also is. a putty-free fastening has already become known - in which a metal cap is used for fastening from the outside. This type of fastening is on the one hand quite expensive, on the other hand also: not reliable, "because when the metal parts are heated, the steat part can loosen and fall out. It is also known to hold the two parts against each other by screwing the metal part to the ceramic body. However, the embodiment is a releasable connection and is also too expensive for mass production.

Erfindungsgemäß wird deshalb vorgeschlagen,als zusätzliches Befestigungsmittel innen einen Ring anzuordnen und das Verdrehen des Metallteiles, dadurch zu verhindern, daß dieses als Vieleck ausgeführt ist und in einer gFeichförmgen Aussparung des Steatitteiles: gehalten wird. - . Die Abb. i: bis. 3° zeigen -die= Erfindung- in ihren Einzelheiten. " ' In den keramischen Körper i wird das Metallteil?- von unten eingeführt, und durch einen' von oben auf' das Metallteil aufgesprengten Ring 3 werden alle Teile ih ihrer Lage gegeneinanderzuhalten. Der runde sowohl als auch der flache Ring nach Abb. i-und 2 werden zweckmäßigerwese in eine Nut eingesprengt, während der winkelförmige Ring nach Abb. 3. durch Preßsitz, befestigt wird.According to the invention it is therefore proposed as an additional fastening means to arrange a ring inside and to prevent the twisting of the metal part, that this is designed as a polygon and in a gFeichförmgen recess of the Steatite parts: is held. -. Fig. I: to. 3 ° show -the = Invention - in its details. "'In the ceramic body i is the metal part? - inserted from below and blown open by a 'from above' onto the metal part Ring 3 will hold all parts against each other in their position. The round as well as also the flat ring according to fig. i and 2 are expediently pressed into a groove, while the angular ring according to Fig. 3 is fastened by a press fit.

Die angegebenen Lösungsarten sind sehr einfach -herzustellen, eignen -sich außerdem für eine automatische Fertigung und gewährleisten einen festen Halt -der Metallteile im keramischen Körper. Ebenso ist ein Zerspringen der keramischen Körper durch die Ausdehnung der Metallteile bei der Erwärmung unmöglich.The specified types of solutions are very easy to produce, suitable -self for an automatic production and guarantee a firm hold -the metal parts in the ceramic body. There is also a shattering of the ceramic Body impossible due to the expansion of the metal parts when heated.

Claims (3)

' PATrNTANSPRÜGFIE: i. Kittlose Befestigung -der -Metallschraube von Paßringen im keramischen Paßkörper bei Schmelzsicherungen des D-Systems, dadurch gekennzeichnet, daß ,die, Metallschraube (2), die durch eine entsprechende Aussparung in den keramischen Paßkörper (i) eingeführt ist, von innen durch einen Ring (3) gehalten wird und daß die Metallschraube durch Ausbildung als Vieleck gegen Verdrehen gegenüber dein Paßkörper geschützt ist. 'PATRNT APPLICATION: i. Putty-free fastening -the -metal screw of Fitting rings in the ceramic fitting body for fuses of the D system, thereby characterized in that, the, metal screw (2) through a corresponding recess is inserted into the ceramic fitting body (i), from the inside through a ring (3) is held and that the metal screw by training as a polygon against rotation against your fitting body is protected. 2. Kittlose Befestigung von Metallschrauben nach Anspruch i, dadurch gekennzeichnet, - daß der Ring als Sprengring mit rundem oder flachem Querschnitt ausgebildet ist und in eine Ringnut des Metallteiles eingreift (Abb. i und 2). 2. Putty-free fastening of metal screws according to claim i, characterized in that the ring is a snap ring with a round or flat cross-section and engages in an annular groove of the metal part (Fig. I and 2). 3. Kittlose Befestigung von Metallschrauben nach ;Anspruch i, dadurch gekennzeichnet, daß der Ring als Hohlniet mit winkligem Querschnitt ausgebildet und auf die Metallschraube derart aufgeschoben ist, daß die beiden Teile durch Preßsitz gegeneinander festgehalten werden und der eine Teil des Winkelprofils der Hohlniet die Metallschraube gegen den Paßkörper drückt (Abb. 3). Kittldse Befestigung von Metallschrauben nach den Ansprüchen I, 2 und 3, dadurch gekennzeichnet, daß Metallschraube und Sprengring miteinander verschweißt oder verlötet werden. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: Deutsche Patentsbhriften . Nr. 383 46, 592 69i: , - -3. Putty-free fastening of metal screws according to; claim i, characterized characterized in that the ring is designed as a hollow rivet with an angled cross-section and is pushed onto the metal screw in such a way that the two parts are press-fitted are held against each other and one part of the angle profile of the hollow rivet the metal screw presses against the fitting body (Fig. 3). Kittldse attachment of Metal screws according to claims 1, 2 and 3, characterized in that metal screw and snap ring are welded or soldered together. To delimit the The subject of the invention from the prior art are the following in the grant procedure Publications considered: German patent publications. No. 383 46, 592 69i:, - -
DEW111399D 1942-07-29 1942-07-29 Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body for fuses of the D system Expired DE754055C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW111399D DE754055C (en) 1942-07-29 1942-07-29 Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body for fuses of the D system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW111399D DE754055C (en) 1942-07-29 1942-07-29 Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body for fuses of the D system

Publications (1)

Publication Number Publication Date
DE754055C true DE754055C (en) 1951-01-29

Family

ID=7617160

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW111399D Expired DE754055C (en) 1942-07-29 1942-07-29 Putty-free fastening of the metal screw of fitting rings in the ceramic fitting body for fuses of the D system

Country Status (1)

Country Link
DE (1) DE754055C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844931C (en) * 1948-11-23 1952-07-28 Jean Mueller O H G Elektrotech Fit screw consisting of an insulating body and a contact screw for fuse inserts
EP0400392A2 (en) * 1989-06-02 1990-12-05 ELEKTRIM-MYSLAKOWICE Spolka z ograniczona odpowiedzialnoscia Cartridge fuse for the protection of electrical installations

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE383146C (en) * 1921-10-28 1923-10-10 Siemens Schuckertwerke G M B H Distinctive ring for electrical fuses
DE592691C (en) * 1932-04-07 1934-02-12 Siemens Schuckertwerke Akt Ges Fitting screw for screw plug safety devices with an insulating body serving as a fitting element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE383146C (en) * 1921-10-28 1923-10-10 Siemens Schuckertwerke G M B H Distinctive ring for electrical fuses
DE592691C (en) * 1932-04-07 1934-02-12 Siemens Schuckertwerke Akt Ges Fitting screw for screw plug safety devices with an insulating body serving as a fitting element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844931C (en) * 1948-11-23 1952-07-28 Jean Mueller O H G Elektrotech Fit screw consisting of an insulating body and a contact screw for fuse inserts
EP0400392A2 (en) * 1989-06-02 1990-12-05 ELEKTRIM-MYSLAKOWICE Spolka z ograniczona odpowiedzialnoscia Cartridge fuse for the protection of electrical installations
EP0400392A3 (en) * 1989-06-02 1992-04-08 ELEKTRIM-MYSLAKOWICE Spolka z ograniczona odpowiedzialnoscia Cartridge fuse for the protection of electrical installations

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