DE424026C - Fixing screw in connection with an insulating sleeve - Google Patents

Fixing screw in connection with an insulating sleeve

Info

Publication number
DE424026C
DE424026C DEL62141D DEL0062141D DE424026C DE 424026 C DE424026 C DE 424026C DE L62141 D DEL62141 D DE L62141D DE L0062141 D DEL0062141 D DE L0062141D DE 424026 C DE424026 C DE 424026C
Authority
DE
Germany
Prior art keywords
insulating sleeve
bolt
neck
around
tapered
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
DEL62141D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEL62141D priority Critical patent/DE424026C/en
Application granted granted Critical
Publication of DE424026C publication Critical patent/DE424026C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00Features common to bolt and nut
    • F16B33/004Sealing; Insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70Insulation of connections

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Description

Befestigungsschraube in Verbindung mit einer Isolierhülse, dadurch gekennzeichnet, daß die Isolierhülse um einen verjüngten Hals der Schraube angeordnet istFastening screw in connection with an insulating sleeve, characterized in that that the insulating sleeve is arranged around a tapered neck of the screw

ί Cί C

Claims (1)

Der Gegenstand der vorliegenden Erfindung betrifft eine Befestigungsschraube in Verbindung mit einer Isolierhülse, wie sie zur Befestigung von Einzelteilen elektrischer Maschinen oder Apparate oder als Bürstenbolzen benutzt werden.The object of the present invention relates to a fastening screw in Connection with an insulating sleeve, such as those used for fastening individual electrical parts Machines or apparatus or as brush bolts. Bisher wurden hierzu normale Schrauben verwendet, auf die eine Isolierhülse aufgeschoben wurde. Bei einer solchen Anordnung mußten die Bohrungen, die zur Aufnahme des Bolzens mit der Isolierhülse dienen, um den doppelten Betrag der Wandstärke der Isolierhülse größer gehalten werden, als dies für den Bolzen allein nötig war.So far, normal screws were used for this purpose, onto which an insulating sleeve was pushed became. With such an arrangement, the bores that serve to receive the bolt with the insulating sleeve had to twice the amount of the wall thickness of the insulating sleeve can be kept larger than this was necessary for the bolt alone. Diese Nachteile werden bei der vorliegenden Erfindung dadurch vermieden, daß der Hals des Bolzens so weit verjüngt wird, daß er z.B. ungefähr dem Innendurchmesser des Gewindeschaftes entspricht. Um diesen verjungten Hals wird dann die an sich bekannte Isolierhülse angeordnet. So kann sie beispielsweise so hergestellt werden, daß ein Isolierband gegebenenfalls unter Verwendung eines Bindemittels in mehreren Lagen um den Hals des Bolzens herumgewickelt wird, oder sie kann direkt durch Pressen aufgebracht werden. Selbstverständlich kann hierbei die Hülse gleichzeitig mit einem Flansch versehen werden, oder in Fällen niedriger Stromspannung kann die Isolierhülse beispielsweise der Länge nach geschlitzt und federnd oder aber mehrteilig um den verjüngten Hals der Schraube angelegt werden.These disadvantages are avoided in the present invention in that the Neck of the bolt is tapered so far that it is e.g. approximately the inner diameter of the Corresponds to the threaded shaft. Around this rejuvenated neck is then the familiar one Insulating sleeve arranged. For example, it can be manufactured so that a Insulating tape, if necessary using a binder in several layers around the The neck of the bolt is wrapped around, or it can be applied directly by pressing will. Of course, the sleeve can be provided with a flange at the same time be, or in cases of low voltage, the insulating sleeve can for example slotted lengthways and resiliently or in several parts around the tapered neck of the screw. Erwähnt sei noch, daß selbstverständlich auch sogenannte Holzschrauben beliebiger Art nach der Erfindung um einen verjüngten Hals derselben mit einer Isolierhülse versehen werden können.It should also be mentioned that, of course, so-called wood screws of any kind can also be used be provided according to the invention around a tapered neck thereof with an insulating sleeve can. In der Zeichnung ist der Gegenstand der Erfindung in einer beispielsweisen Ausführungsform im Längs-' und Querschnitt dargestellt, In the drawing, the subject matter of the invention is in an exemplary embodiment shown in longitudinal and cross-section, α ist der Gewindeschaft des Bolzens, b der verjüngte Hals des Bolzens, c der Schraubenkopf und / die IsoJierhülse α is the threaded shaft of the bolt, b the tapered neck of the bolt, c the screw head and / the insulating sleeve Diese Anordnung hat auch noch den Vor teil, daß die Isolierhülse fest mit dem Bolzen verbunden ist, so daß sie beim Lösen des Bolzens mit herausgezogen wird.This arrangement also has the advantage that the insulating sleeve is firmly attached to the bolt is connected so that it is pulled out when loosening the bolt. 50 PxVTENT-Anspruch: 50 PxVTENT claim:
DEL62141D Fixing screw in connection with an insulating sleeve Expired DE424026C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL62141D DE424026C (en) Fixing screw in connection with an insulating sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL62141D DE424026C (en) Fixing screw in connection with an insulating sleeve

Publications (1)

Publication Number Publication Date
DE424026C true DE424026C (en) 1926-01-16

Family

ID=7280527

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL62141D Expired DE424026C (en) Fixing screw in connection with an insulating sleeve

Country Status (1)

Country Link
DE (1) DE424026C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111350743A (en) * 2020-03-10 2020-06-30 嘉兴萨雷特汽车零部件有限公司 Fastening bolt with good insulating property for automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111350743A (en) * 2020-03-10 2020-06-30 嘉兴萨雷特汽车零部件有限公司 Fastening bolt with good insulating property for automobile

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