DE268784C - - Google Patents

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Publication number
DE268784C
DE268784C DENDAT268784D DE268784DA DE268784C DE 268784 C DE268784 C DE 268784C DE NDAT268784 D DENDAT268784 D DE NDAT268784D DE 268784D A DE268784D A DE 268784DA DE 268784 C DE268784 C DE 268784C
Authority
DE
Germany
Prior art keywords
thread
rolled
washer
bolt
screw
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.)
Active
Application number
DENDAT268784D
Other languages
German (de)
Publication of DE268784C publication Critical patent/DE268784C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Description

feERLIN. GEDRUCKT IN DER REICHSDRUCKEUEi.feERLIN. PRINTED IN THE REICHSDRUCKEUEi.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. mit aufgewalztem Gewinde.with rolled-on thread. Das vorliegende Verfahren ergibt eine sehr einfache Art, die Unterlegscheibe bei gerollten Schrauben unverlierbar, aber drehbar zu befestigen. Beim Rollen des Gewindes dieser Schrauben tritt bekanntlich durch den Druck der Werkzeuge infolge Herausdrückens eines Teils der Gewindegänge eine Durchmesservergrößerung des Bolzens ein. Wird deshalb die Unterlegscheibe α vor dem Rollen des Gewindes auf den Schraubenbolzen b gesteckt (s. Fig. i) und wird dann das Gewinde gerollt, so wird der Gewindedurchmesser des Bolzens größer als das Loch der Unterlegscheibe, wie dies Fig. 2, zeigt, und die Unterlegscheibe kann nicht mehr vom Bolzen, herabgleiten, bleibt aber bei entsprechender Einstellung der Werkzeuge drehbar. In Fällen, in denen die Unterlegscheibe fest am Schraubenkopf, also nicht drehbar, befestigt werden soll, kann auch dies durch Verstellen der Werkzeuge leicht bewirkt werden.The present method provides a very simple way of captive but rotatable fastening of the washer when the screws are rolled. When the thread of these screws is rolled, the pressure of the tools as a result of a part of the thread turns being pushed out causes an increase in the diameter of the bolt. If the washer α is therefore placed on the screw bolt b before the thread is rolled (see Fig. I) and the thread is then rolled, the thread diameter of the bolt becomes larger than the hole in the washer, as shown in Fig. 2, and the washer can no longer slide down from the bolt, but remains rotatable when the tools are adjusted accordingly. In cases in which the washer is to be firmly attached to the screw head, i.e. not rotatable, this can also be easily achieved by adjusting the tools. Ρλ τ ε ν τ - A ν s ρ R υ c H :Ρλ τ ε ν τ - A ν s ρ R υ c H: Verfahren zur unverlierbaren Befestigung von Unterlegscheiben an Schrauben mit aufgewalztem Gewinde, dadurch gekennzeichnet, daß die Unterlegscheibe (a) vor dem Walzen des Gewindes auf den Bolzen (hj der Schraube gebracht wird, so daß sie nach erfolgtem Walzen durch die eintretende Durchmesservergrößerung des mit Gewinde versehenen Bolzens auf der Schraube unverlierbar festgehalten wird.Method for captive fastening of washers to screws with a rolled-on thread, characterized in that the washer (a) is placed on the bolt (hj of the screw before the thread is rolled) so that, after rolling, it is brought about by the increase in diameter of the thread provided Bolt is held captive on the screw. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT268784D Active DE268784C (en)

Publications (1)

Publication Number Publication Date
DE268784C true DE268784C (en)

Family

ID=525717

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DE (1) DE268784C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861940C (en) * 1949-11-15 1953-01-08 Prestole Corp Method of attaching washers to screws
DE954865C (en) * 1954-06-25 1956-12-27 Teves Kg Alfred Method for producing a screw-in end limited by a collar on a cylindrical part
DE1015302B (en) * 1938-09-10 1957-09-05 Illinois Tool Works Machine for attaching washers to head screw blanks
DE1084682B (en) * 1938-09-10 1960-07-07 Illinois Tool Works Automatic feeding device for head screw blanks combined with their washers to form a thread rolling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1015302B (en) * 1938-09-10 1957-09-05 Illinois Tool Works Machine for attaching washers to head screw blanks
DE1084682B (en) * 1938-09-10 1960-07-07 Illinois Tool Works Automatic feeding device for head screw blanks combined with their washers to form a thread rolling device
DE861940C (en) * 1949-11-15 1953-01-08 Prestole Corp Method of attaching washers to screws
DE954865C (en) * 1954-06-25 1956-12-27 Teves Kg Alfred Method for producing a screw-in end limited by a collar on a cylindrical part

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