DE1050274B - Process for the manufacture of plastic watch movement parts subject to friction - Google Patents
Process for the manufacture of plastic watch movement parts subject to frictionInfo
- Publication number
- DE1050274B DE1050274B DE1953L0014780 DEL0014780A DE1050274B DE 1050274 B DE1050274 B DE 1050274B DE 1953L0014780 DE1953L0014780 DE 1953L0014780 DE L0014780 A DEL0014780 A DE L0014780A DE 1050274 B DE1050274 B DE 1050274B
- Authority
- DE
- Germany
- Prior art keywords
- friction
- plastic
- watch movement
- movement parts
- manufacture
- 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.)
- Pending
Links
- 239000004033 plastic Substances 0.000 title claims description 11
- 229920003023 plastic Polymers 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
- G04B31/016—Plastic bearings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sliding-Contact Bearings (AREA)
- Lubricants (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein Verfahren zum Herstellen von der Reibung unterworfenen Uhrwerkteilen, insbesondere von Lagern od. dgl., aus einem Kunststoff mit geringem Reibungskoeffizienten. Bekanntlich ist es schwierig, bei Uhrwerken die Aufrechterhaltung der ursprünglichen Ganggenauigkeit zu sichern. Die Ganggenauigkeit wird bei den der Reibung unterworfenen Teilen unter anderem durch die erforderliche Ölung dieser Teile beeinflußt. Man hat bereits ganz allgemein den Vorschlag gemacht, Lagerteile aus Kunststoffen, nämlich Polyamiden, herzustellen, weil diese keiner Schmierung bedürfen. Haben die Kunststoffe jedoch, wie es erwünscht ist, einen geringen Reibungskoeffizienten, so ist es nicht möglich, die der Reibung unterworfenen Teile, also z. B. Uhrwerklager, in üblicher Weise durch unmittelbares Einpressen in dem Halter, z. B. in der Werkplatte, mit Sicherheit zu befestigen. Das gilt vor allem für Uhrwerkteile, also z. B. Uhrwerklager, aus Polytetrafluoräthylen, das andererseits vor allem wegen seiner großen Härte ein besonders brauchbarer Werkstoff für die der Reibung unterworfenen Uhrwerkteile ist, der ebenfalls keine Ölung des Uhrwerkes erforderlich macht, konstante Reibungseigenschaften hat und somit zur Einhaltung der Ganggenauigkeit der Uhr beiträgt.The invention relates to a method for manufacturing watch movement parts subject to friction, in particular of bearings or the like, made of a plastic with a low coefficient of friction. As is well known it is difficult to maintain the original accuracy of movements to secure. The accuracy of the parts subject to friction is, among other things, due to influences the required lubrication of these parts. The suggestion has already been made in general, Manufacture bearing parts made of plastics, namely polyamides, because they do not require any lubrication. However, if the plastics have a low coefficient of friction, as is desired, it is not possible, the parts subject to friction, so z. B. movement bearings, in the usual way by immediate Pressing into the holder, e.g. B. in the work plate to secure with security. That is true especially for clockwork parts, e.g. B. clockwork bearings, made of polytetrafluoroethylene, the other hand above all Because of its great hardness, it is a particularly useful material for watch movement parts subject to friction which also does not require oiling of the movement, constant friction properties and thus contributes to maintaining the accuracy of the watch.
Erfindungsgemäß wird nun eine einfache
sichere Befestigung der aus einem Kunststoff
geringem Reibungskoeffizienten, insbesondere
Polytetrafluoräthylen gefertigten Uhrwerkteile
durch erreicht, daß diese zwischen den umgebördelten Rändern einer Metallhülse verankert werden und letztere
in den Halter eingepaßt wird.According to the invention, a simple one is now
secure fastening of the plastic
low coefficient of friction, in particular
Movement parts made from polytetrafluoroethylene
achieved by that these are anchored between the flanged edges of a metal sleeve and the latter is fitted into the holder.
Eine beispielsweise Ausführungsform des Erfindungsgegenstandes zeigt die Zeichnung. 1 und 2 sind die untere bzw. obere Werkplatte eines Uhrwerkes, welches durch ein Zahnrad 3 dargestellt ist. Mit 4 sind die Zapfenlager bezeichnet, in welchen sich die Welle des Zahnrades 3 dreht. Die Zapfenlager 4 sind aus einem Kunststoff mit geringem Reibungskoeffizienten, insbesondere aus Polytetrafluoräthylen gefertigt und zwischen den umgebördelten Rändern einer Metallhülse 5 verankert. Die Metallhülse der beiden Zapfenlager ist in die Werkplatte 1 bzw. 2 eingesetzt bzw. in üblicher Weise eingedrückt.The drawing shows an example embodiment of the subject matter of the invention. 1 and 2 are the lower and upper work plates of a clockwork, which is represented by a gear 3 . With 4 the journal bearings are designated, in which the shaft of the gear 3 rotates. The journal bearings 4 are made of a plastic with a low coefficient of friction, in particular of polytetrafluoroethylene, and are anchored between the flanged edges of a metal sleeve 5. The metal sleeve of the two journal bearings is inserted into the work plate 1 or 2 or pressed in in the usual way.
und mit aus da-and from there-
Verfahren zum Herstellen
von der Reibung unterworfenen
Uhrwerkteilen aus KunststoffMethod of manufacture
subjected to friction
Clockwork parts made of plastic
Anmelder:Applicant:
Societe dite: Lip S. A. d'Horlogerie,
Besangon (Frankreich)Societe dite: Lip SA d'Horlogerie,
Besangon (France)
Vertreter: Dipl.-Ing. Ε. Prinz, Patentanwalt, München-Pasing, Bodenseestr. 3 a Representative: Dipl.-Ing. Ε. Prinz, patent attorney, Munich-Pasing, Bodenseestr. 3 a
Beanspruchte Priorität: Frankreich vom 21. März 1952Claimed priority: France of March 21, 1952
Jean Georges Laviolette, Besangon (Frankreich), ist als Erfinder genannt wordenJean Georges Laviolette, Besangon (France), has been named as the inventor
Claims (2)
Deutsche Patentschrift Nr. 675 671;
französische Patentschriften Nr. 745 663. 984 562; > Stoeckhert, Kunststoffe ohne Geheimnis, 1950, S. 84/85 und 233/234.Considered publications:
German Patent No. 675 671;
French Patent Nos. 745,663,984,562; > Stoeckhert, plastics without a secret, 1950, pp. 84/85 and 233/234.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1052697T | 1952-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1050274B true DE1050274B (en) | 1959-02-05 |
Family
ID=9595462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1953L0014780 Pending DE1050274B (en) | 1952-03-21 | 1953-02-24 | Process for the manufacture of plastic watch movement parts subject to friction |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH308035A (en) |
| DE (1) | DE1050274B (en) |
| FR (1) | FR1052697A (en) |
| GB (1) | GB735376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132061A (en) * | 1976-02-18 | 1979-01-02 | Bouchet-Lassale S.A. | Watch movement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143152B (en) * | 1956-06-02 | 1963-01-31 | Straumann Inst Ag | Spring, in particular the mainspring of clocks |
| CH472064A (en) * | 1965-10-18 | 1968-11-29 | Erard Raoul Henri | Manufacturing process of a bearing for a watch mobile |
-
1952
- 1952-03-21 FR FR1052697D patent/FR1052697A/en not_active Expired
-
1953
- 1953-02-09 CH CH308035D patent/CH308035A/en unknown
- 1953-02-11 GB GB389253A patent/GB735376A/en not_active Expired
- 1953-02-24 DE DE1953L0014780 patent/DE1050274B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132061A (en) * | 1976-02-18 | 1979-01-02 | Bouchet-Lassale S.A. | Watch movement |
Also Published As
| Publication number | Publication date |
|---|---|
| GB735376A (en) | 1955-08-17 |
| FR1052697A (en) | 1954-01-26 |
| CH308035A (en) | 1955-06-30 |
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