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DE750891C - Lock washer for screw connections - Google Patents

Lock washer for screw connections

Info

Publication number
DE750891C
DE750891C DEJ61192D DEJ0061192D DE750891C DE 750891 C DE750891 C DE 750891C DE J61192 D DEJ61192 D DE J61192D DE J0061192 D DEJ0061192 D DE J0061192D DE 750891 C DE750891 C DE 750891C
Authority
DE
Germany
Prior art keywords
screw connections
washer
tabs
lock washer
brought
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
DEJ61192D
Other languages
German (de)
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 filed Critical
Priority to DEJ61192D priority Critical patent/DE750891C/en
Application granted granted Critical
Publication of DE750891C publication Critical patent/DE750891C/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
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object

Landscapes

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

Description

Sicherungsscheibe für Schraubenverbindungen Die Erfindung geht aus von einer bekannten kreisrunden, ringförmigen Sicherungsscheibe für Schraubenverbindungen mit von einer Scheibenkante ausgehenden, schräg aufgebogenen, federnden Sicherungslappen, die, um ein Flachdrücken der Lappen beim Anziehen der Schraubenverbindung zu vermeiden, so zueinander angeordnet sind, daß sie sich gegenseitig fächerartig überdecken. Bisher wurde diese überdeckung dadurch erreicht, daß man die Lappen durch Druck auf den mittleren Lappenteil verbreiterte. Dies hat jedoch den Nachteil, daß durch die Schwächung der Lappen im mittleren Teil die Bruchgefahr für die Lappen sehr erhöht wird. Außerdem ist ein beträchtlicher Druck erforderlich, um eine genügende Verbreiterung der Lappen zu erreichen.Lock washer for screw connections The invention is based of a known circular, ring-shaped locking washer for screw connections with angled, resilient locking tabs extending from one edge of the pane, which, in order to avoid flattening the tabs when tightening the screw connection, are arranged to each other that they overlap each other like a fan. So far, this overlap has been achieved by applying pressure to the flaps widened to the middle part of the lobe. However, this has the disadvantage that by the weakening of the lobes in the middle part greatly increases the risk of breakage for the lobes is increased. In addition, considerable pressure is required to achieve a sufficient To achieve broadening of the lobes.

Um diese Nachteile zu vermeiden,, ist beim Erfindungsgegenstand die Verbreiterung der Lappen dadurch herbeigeführt, daß abwechselnd an der Ober- und Unterseite der Lappen Material aus den Seitenkanten der Lappen herausgedrückt ist. Es ist allerdings auch bekannt, die erforderliche Verbreiterung der Lappen ohne Schwächung des Materials zu erreichen:, indem die Scheibe nach dem Ausstanzen auf einen geringeren Durchmesser gebracht wird. Dieses Verfahren macht also bei Herstellung der Scheiben aus einem laufenden Band nach dem Ausstanzen derselben noch eine Nachbehandlung (Tiefziehen) erforderlich und ist daher wesentlich umständlicher.To avoid these disadvantages, is the subject of the invention Broadening of the lobes brought about that alternately on the upper and Underside of the tabs material is squeezed out of the side edges of the tabs. It is, however, also known to widen the lobes without the necessary To achieve weakening of the material: by removing the disc after punching it out a smaller diameter is brought. So this process does in manufacturing of the disks from a moving belt after punching them out, an aftertreatment (Deep drawing) is required and is therefore much more cumbersome.

Auf der Zeichnung ist die Erfindung an Hand eines Ausführungsbeispiels erläutert. Nachdem das Loch t zum Durchstecken des Schraubenbolzens aus einem fortlaufenden Blechstreifen 2 ausgestanzt und im nächsten Hub die Einschnitte 3 zur Erzeugung der Lappen ausgeführt sind (s. Abb. i), werden im darauffolgenden Gang diese Lappen dadurch zum gegenseitigen Überlappen gebracht, daß, wie Abb.2 vergrößert im Querschnitt zeigt, ihre Seitenkanten abwechselnd von oben und unten breitgequetscht werden. Der Querschnitt des Lappens erhält dann die aus Abb. 2 ersichtliche Form, die eine bedeutende Stabilität gewährleistet. Schließlich werden die Scheiben aus den Blechstreifen ausgestanzt.In the drawing, the invention is based on an exemplary embodiment explained. After the hole t for inserting the screw bolt from a continuous Sheet metal strips 2 punched out and the incisions 3 for production in the next stroke of the flaps are executed (see Fig. i), these flaps become in the following passage thereby brought to mutual overlap, that, as Fig.2 enlarged in cross-section shows their side edges being squeezed wide alternately from above and below. The cross-section of the flap is then given the shape shown in Fig. 2, the one ensures significant stability. Finally, the disks are made from the sheet metal strips punched out.

In dieser Weise lassen sich aus einem entsprechend breiten Blechstreifen gleichzeitig eine größere Anzahl von Sicherungsscheiben fortlaufend herstellen.In this way, from a correspondingly wide sheet metal strip at the same time continuously produce a larger number of lock washers.

Claims (1)

PATENTANSPRUCH: Sicherungsscheibe mit von einer Scheibenkante ausgehenden, infolge Prägung bis zur gegenseitigen fächerartigen überdeckung verbreiterten Lappen für Schraubenverbindungen, dadurch gekennzeichnet, daß die Verbreiterung der Lappen durch abwechselnd an der Ober- und Unterseite der Scheibe erfolgendes Herausdrücken des Materials aus den Seitenkanten herbeigeführt ist. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Dnickseliriften in Betracht gezogen worden deutsche Patentschriften .... Nr. .18o 297, 653 528; französische Patentschrift 740577; USA.-Patentschrift . . . . . . . . - 1 807258. PATENT CLAIM: Locking washer with tabs for screw connections starting from a washer edge and widened as a result of embossing up to mutual fan-like overlap, characterized in that the widening of the tabs is brought about by alternately pushing the material out of the side edges on the top and bottom of the washer. To distinguish the subject of the application from the state of the art, the following Dnickselirifte were taken into account in the granting procedure: German patents .... No. .18o 297, 653 528; French patent 740577; U.S. Patent. . . . . . . . - 1 807258.
DEJ61192D 1938-04-30 1938-04-30 Lock washer for screw connections Expired DE750891C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ61192D DE750891C (en) 1938-04-30 1938-04-30 Lock washer for screw connections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ61192D DE750891C (en) 1938-04-30 1938-04-30 Lock washer for screw connections

Publications (1)

Publication Number Publication Date
DE750891C true DE750891C (en) 1945-02-03

Family

ID=7207474

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ61192D Expired DE750891C (en) 1938-04-30 1938-04-30 Lock washer for screw connections

Country Status (1)

Country Link
DE (1) DE750891C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1150025A1 (en) * 2000-04-28 2001-10-31 Armacell Enterprise GmbH Clamping disc made of metal or plastics
DE102023202176A1 (en) 2023-03-10 2024-09-12 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Window regulator assembly for a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480297C (en) * 1928-12-08 1929-07-30 Wilhelm Steinhorst Process for the production of fan-shaped locking washers
US1807258A (en) * 1929-02-25 1931-05-26 Frank Q Schwartz Method of making lock washers
FR740577A (en) * 1932-04-26 1933-01-27 Process for the production of fan-shaped safety washers
DE653528C (en) * 1934-05-26 1937-11-27 Illinois Tool Works Process for the production of ring-shaped locking washers with overlapping lobes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480297C (en) * 1928-12-08 1929-07-30 Wilhelm Steinhorst Process for the production of fan-shaped locking washers
US1807258A (en) * 1929-02-25 1931-05-26 Frank Q Schwartz Method of making lock washers
FR740577A (en) * 1932-04-26 1933-01-27 Process for the production of fan-shaped safety washers
DE653528C (en) * 1934-05-26 1937-11-27 Illinois Tool Works Process for the production of ring-shaped locking washers with overlapping lobes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1150025A1 (en) * 2000-04-28 2001-10-31 Armacell Enterprise GmbH Clamping disc made of metal or plastics
DE102023202176A1 (en) 2023-03-10 2024-09-12 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Window regulator assembly for a motor vehicle

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