AT87936B - Method of making the edge of the bottoms of press studs. - Google Patents
Method of making the edge of the bottoms of press studs.Info
- Publication number
- AT87936B AT87936B AT87936DA AT87936B AT 87936 B AT87936 B AT 87936B AT 87936D A AT87936D A AT 87936DA AT 87936 B AT87936 B AT 87936B
- Authority
- AT
- Austria
- Prior art keywords
- edge
- bottoms
- making
- press studs
- sheet metal
- Prior art date
Links
Landscapes
- Punching Or Piercing (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung des Randes der Unterteile von Druckknöpfen.
Die Erfindung besteht in einem Verfahren zur Herstellung des Randes von Druckknopfunterteilen, den sogenannten Kugelteilen. Dieser Rand wurde bisher in der Art hergestellt, dass er (siehe 1, Fig. I) eingerollt *wurde. Dies erfolgte durch Einpressen des Druckknopfunterteiles mit hoch gezogenem Rand 2 (Fig. 2) in das Gesenk 3 (Fig. 3) eines
Schliesswerkzeuges. Diese Art der Herstellung wird dadurch teuer, dass jeder Druckknopfunterteil einzeln aus dem Blechstreifen, in welchem er eingepresst wurde, und zwar zugleich mit dem hochgezogenen Rande 2. herausgestanzt und dann dem Gesenke 3 (Fig. 3) eines besonderen Schliess werkzeuges in richtiger Lage zugeführt werden muss, bevor das Einrollen (Schliessen) vorgenommen werden kann.
Gemäss der Erfindung wird der fertige Rand 4 (Fig. 4) dadurch erhalten, dass der hochgezogene Rand 5 vor dem Herausstanzen des Druckknopfunterteiles aus dem Blechstreifen gemäss Fig. 6 derart gestaucht wird, dass er nach Herausstanzen des'fertigen Werkstückes (Druckknopfunterteiles) stärker ist, als das zu seiner Herstellung verwendete Blech.
Fig. 7 zeigt einen Materialstreifen, in welchem entsprechend der stufenweisen Erzeugung Druckknopfunterteile 8 mit hochgezogenem Rande 5, ferner Druckknopfunterteile 9 mit bereits gestauchtem Rande 4 und schliesslich die Stanzlöcher 10 dargestellt sind, welche durch Herausstanzen der Werkstücke (Druckknopfunterteile) in dem Materialstreifen verbleiben. Fig. 8 zeigt einen Grundriss des Streifenteiles gemäss Fig. 7.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Method of making the edge of the bottoms of press studs.
The invention consists in a method for producing the edge of push-button lower parts, the so-called ball parts. This edge was previously produced in such a way that it (see 1, Fig. I) was rolled *. This was done by pressing the push-button lower part with the raised edge 2 (FIG. 2) into the die 3 (FIG. 3) of a
Locking tool. This type of production is expensive because each push-button lower part is individually punched out of the sheet metal strip into which it was pressed, at the same time with the raised edge 2. and then fed to the dies 3 (Fig. 3) of a special closing tool in the correct position must be made before rolling (closing) can be carried out.
According to the invention, the finished edge 4 (FIG. 4) is obtained by compressing the raised edge 5 prior to punching out the lower part of the push button from the sheet metal strip according to FIG. 6 in such a way that it is stronger after the finished workpiece (lower part of the push button) has been punched out than the sheet metal used to make it.
Fig. 7 shows a material strip in which, according to the gradual generation, push button lower parts 8 with raised edge 5, further push button lower parts 9 with already compressed edge 4 and finally the punched holes 10 are shown, which remain in the material strip by punching out the workpieces (push button lower parts). FIG. 8 shows a plan view of the strip part according to FIG. 7.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS87936X | 1920-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT87936B true AT87936B (en) | 1922-04-10 |
Family
ID=5438968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT87936D AT87936B (en) | 1920-03-26 | 1921-02-11 | Method of making the edge of the bottoms of press studs. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT87936B (en) |
-
1921
- 1921-02-11 AT AT87936D patent/AT87936B/en active
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