CH340777A - Component for watches, which has rubbing surfaces - Google Patents

Component for watches, which has rubbing surfaces

Info

Publication number
CH340777A
CH340777A CH340777DA CH340777A CH 340777 A CH340777 A CH 340777A CH 340777D A CH340777D A CH 340777DA CH 340777 A CH340777 A CH 340777A
Authority
CH
Switzerland
Prior art keywords
sep
watches
component
rubbing surfaces
alloy
Prior art date
Application number
Other languages
German (de)
Original Assignee
Straumann Inst Ag
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 by Straumann Inst Ag filed Critical Straumann Inst Ag
Publication of CH340777A publication Critical patent/CH340777A/en

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00Escapements
    • G04B15/14Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/12Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121Use of special materials
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B1/00Driving mechanisms
    • G04B1/10Driving mechanisms with mainspring
    • G04B1/14Mainsprings; Bridles therefor
    • G04B1/145Composition and manufacture of the springs
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B1/00Driving mechanisms
    • G04B1/10Driving mechanisms with mainspring
    • G04B1/18Constructions for connecting the ends of the mainsprings with the barrel or the arbor
    • G04B1/185Friction clutch between spring and spring cylinder
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00Gearwork
    • G04B13/02Wheels; Pinions; Spindles; Pivots

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Description

  

  Bestandteil für     Uhren,    welcher reibende Flächen aufweist         Uhrenteile,    welche     Flächen    aufweisen, die einer  Reibungsbeanspruchung unterworfen sind, werden bis  heute meist aus Messing, teilweise auch aus Stahl herge  stellt. Solche Teile sind z. B. die Teile der Hemmung  (Anker und Ankerrad), die Teile des Mechanismus,  welche bei Kalenderuhren die     Datumsanzeige    betäti  gen, das Federhaus bei     Selbstaufzuguhren    u. a.  



  Bei dieser Ausführungsform treten immer wieder  dadurch Schwierigkeiten auf, dass sich die Reibung  zwischen den     aufeinandergleitenden    Flächen infolge  mangelhaften Gleiteigenschaften vergrössert, oder dass  die reibenden Flächen anfressen, was zu Störungen  im Gang der Uhr führt.  



  Im Schweizer Patent Nr. 337455 wird darauf hin  gewiesen, dass man die Gleiteigenschaften zwischen  Federhaus von     Selbstaufzuguhren    und der Aufzug  feder, welche ja bekanntlich eine Rutschkupplung  bilden, verbessern kann, wenn man das Federhaus  aus     anodisch    oxydiertem Aluminium herstellt. Die  dadurch erzeugte Oberflächenschicht bewirkt eine  Verbesserung der Reibungseigenschaften, wobei weit  gehend das      Anfressen     der Oberfläche vermieden  wird.  



  Durch eingehende Versuche ist nun festgestellt  worden, dass man nicht nur das     Trägheitsmoment     der Teile einer Ankerhemmung, also des Ankerrades  und des Ankers herabsetzen kann, sondern auch die  mechanischen und physikalischen Eigenschaften  anderer     Uhrenbestandteile,    welche reibende Flächen  aufweisen, wie z. B. Hebel und     Klinken    im Datums  mechanismus von Kalenderuhren, verbessern kann,  wenn man diese und ähnliche     Uhrenbestandteile    aus       anodisch        oxydierbarem    Aluminium oder einer       anodisch        oxydierbaren        Aluminiumlegierung    herstellt.  



  Der erfindungsgemässe Uhrbestandteil ist nun da  durch gekennzeichnet, dass er aus Aluminium oder    einer     Aluminiumlegierung    besteht, deren     Oberfläche          anodisch    oxydiert ist. Unter der Bezeichnung        anodisch    oxydiert  ist jenes Verfahren zu verstehen,  welches üblicherweise auch als     Eloxalverfahren    be  zeichnet wird.  



  Als     Aluminiumlegierungen,    welche für Uhrbe  standteile gemäss der Erfindung Verwendung finden  können, kommen     aushärtbare    Legierungen in Frage,  wie z. B. solche mit nachfolgender Zusammen  setzung:  
EMI0001.0026     
  
    <U>Legierung <SEP> I <SEP> Legierun</U>g <SEP> <U>II</U> <SEP> Legierung <SEP> III
<tb>  Cu <SEP> - <SEP> Cu <SEP> <B>3,5-5</B> <SEP> Cu <SEP> <B>1-2,5</B>
<tb>  Si.

   <SEP> 0,5-1,5 <SEP> Si <SEP> 0-1 <SEP> Si <SEP>   Mn <SEP> 0,2-1 <SEP> Mn <SEP> 0,2-1,5 <SEP> Mn <SEP> 0,2-1
<tb>  Mg <SEP> 0,5-1 <SEP> Mg <SEP> 0,2-1,5 <SEP> Mg <SEP> 2-3
<tb>  Cr <SEP> - <SEP> Cr <SEP> - <SEP> Cr <SEP> 0,1-1
<tb>  Zn <SEP> - <SEP> Zn <SEP> - <SEP> Zn <SEP> 5,5-7
<tb>  A1 <SEP> Rest <SEP> A1 <SEP> Rest <SEP> Al <SEP> Rest       Zur Erzielung einer erhöhten Festigkeit werden  diese Legierungen     zweckmässigerweise    einer geeig  neten     Wärmebehandlung    unterworfen. So wird man  z.

   B. die Festigkeit der Legierung I durch Ab  schrecken aus einer Temperatur von 530 bis 550  C  und Auslagern bei 155 bis 160  C während 4 Stun  den, jene der Legierung     1I    durch Abschrecken aus  einer Temperatur von 505-515  C und Auslagern  bei Zimmertemperatur während 100 Stunden und  jene von Legierung     III    durch Glühen bei einer Tem  peratur zwischen 400 und     440     C während etwa  5 Stunden und anschliessendes Glühen bei einer Tem  peratur zwischen 250 und 340  C während 4 bis  8 Stunden erhöhen.  



  Als weiterer Vorteil kommt für die Ankerteile  hinzu, dass diese bei Verwendung von Aluminium-           legierungen    an Stelle von     Schwermetallegierungen     leichter werden, ein geringes     Trägheitsmoment    be  sitzen und deshalb weniger Energie zu ihrer Bewe  gung benötigen. Ferner sind infolge des geringeren  Gewichtes der Lagerdruck und die Lagerreibung  geringer.  



  Ein weiterer     Vorteil    der erfindungsgemässen Uhr  bestandteile besteht darin, dass sie - aus Alumi  niumlegierungen hergestellt - weitgehend korro  sionsfest und     unmagnetisch    sind und sich überdies  gut bearbeiten lassen.



  Component for watches that has rubbing surfaces Watch parts that have surfaces that are subjected to frictional stress are mostly made of brass, sometimes also of steel, to this day. Such parts are e.g. B. the parts of the escapement (anchor and escape wheel), the parts of the mechanism which actuate the date in calendar watches, the barrel for self-winding watches and. a.



  In this embodiment, difficulties arise again and again in that the friction between the surfaces sliding on one another increases as a result of poor sliding properties, or that the friction surfaces erode, which leads to malfunctions in the running of the watch.



  In Swiss patent no. 337455 it is pointed out that the sliding properties between the barrel of self-winding watches and the winding spring, which are known to form a slip clutch, can be improved if the barrel is made of anodically oxidized aluminum. The surface layer thus produced improves the friction properties, largely avoiding pitting of the surface.



  Through detailed tests it has now been found that you can not only reduce the moment of inertia of the parts of an anchor escapement, so the escape wheel and the anchor, but also the mechanical and physical properties of other watch components that have rubbing surfaces, such. B. levers and pawls in the date mechanism of calendar watches, can improve if you make these and similar watch components from anodically oxidizable aluminum or an anodically oxidizable aluminum alloy.



  The clock component according to the invention is characterized in that it consists of aluminum or an aluminum alloy, the surface of which is anodically oxidized. The term anodically oxidized is to be understood as the process which is usually also referred to as an anodizing process.



  As aluminum alloys, which can be used for Uhrbe components according to the invention, hardenable alloys come into question, such. B. those with the following composition:
EMI0001.0026
  
    <U> alloy <SEP> I <SEP> alloy </U> g <SEP> <U> II </U> <SEP> alloy <SEP> III
<tb> Cu <SEP> - <SEP> Cu <SEP> <B> 3.5-5 </B> <SEP> Cu <SEP> <B> 1-2.5 </B>
<tb> Si.

   <SEP> 0.5-1.5 <SEP> Si <SEP> 0-1 <SEP> Si <SEP> Mn <SEP> 0.2-1 <SEP> Mn <SEP> 0.2-1.5 <SEP> Mn <SEP> 0.2-1
<tb> Mg <SEP> 0.5-1 <SEP> Mg <SEP> 0.2-1.5 <SEP> Mg <SEP> 2-3
<tb> Cr <SEP> - <SEP> Cr <SEP> - <SEP> Cr <SEP> 0.1-1
<tb> Zn <SEP> - <SEP> Zn <SEP> - <SEP> Zn <SEP> 5.5-7
<tb> A1 <SEP> remainder <SEP> A1 <SEP> remainder <SEP> Al <SEP> remainder In order to achieve increased strength, these alloys are expediently subjected to a suitable heat treatment. So you will z.

   B. the strength of alloy I by quenching from a temperature of 530 to 550 C and aging at 155 to 160 C for 4 hours, that of alloy 1I by quenching from a temperature of 505-515 C and aging at room temperature for 100 Hours and those of alloy III by annealing at a temperature between 400 and 440 C for about 5 hours and subsequent annealing at a temperature between 250 and 340 C for 4 to 8 hours.



  Another advantage for the anchor parts is that they become lighter when using aluminum alloys instead of heavy metal alloys, have a low moment of inertia and therefore require less energy to move them. Furthermore, the bearing pressure and bearing friction are lower due to the lower weight.



  Another advantage of the clock components according to the invention is that they - made of aluminum alloys - are largely corrosion-resistant and non-magnetic and, moreover, can be processed easily.

 

Claims (1)

PATENTANSPRUCH Uhrbestandteil, welcher reibende Flächen auf weist, dadurch gekennzeichnet, dass er aus Alumi nium oder einer Aluminiumlegierung besteht, deren Oberfläche anodisch oxydiert ist. UNTERANSPRUCH Uhrbestandteil nach Patentanspruch, dadurch gekennzeichnet, dass er ein Teil der Hemmung ist. PATENT CLAIM A clock component which has rubbing surfaces, characterized in that it consists of aluminum or an aluminum alloy, the surface of which is anodically oxidized. SUBCLAIM Clock component according to claim, characterized in that it is part of the escapement.
CH340777D 1957-04-30 1957-04-30 Component for watches, which has rubbing surfaces CH340777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH340777T 1957-04-30

Publications (1)

Publication Number Publication Date
CH340777A true CH340777A (en) 1959-08-31

Family

ID=4505529

Family Applications (1)

Application Number Title Priority Date Filing Date
CH340777D CH340777A (en) 1957-04-30 1957-04-30 Component for watches, which has rubbing surfaces

Country Status (1)

Country Link
CH (1) CH340777A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039352A1 (en) * 1999-03-26 2000-09-27 Montres Rolex Sa Self-compensating spring for clockwork movement spring balance and method for treating the same
US6329066B1 (en) 2000-03-24 2001-12-11 Montres Rolex S.A. Self-compensating spiral for a spiral balance-wheel in watchwork and process for treating this spiral
WO2010125026A1 (en) * 2009-04-28 2010-11-04 Federal-Mogul Wiesbaden Gmbh Sliding bearing element comprising a lead-free aluminum bearing metal layer
DE102009046647A1 (en) * 2009-11-12 2011-05-19 Schmidt, Lothar, Dipl.-Ing. Clock, has watch part made of aluminum or aluminum alloy and comprising hard anodized coating at its friction surfaces, where coating is generated by anodic oxidizing and has open pores in which solid or viscous lubricant is deposited
EP2251746A3 (en) * 2009-05-11 2012-05-23 Seiko Instruments Inc. Timepiece Wheel and Timepiece

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039352A1 (en) * 1999-03-26 2000-09-27 Montres Rolex Sa Self-compensating spring for clockwork movement spring balance and method for treating the same
US6503341B2 (en) 1999-03-26 2003-01-07 Montres Rolex S.A. Self-compensating spiral for a spiral balance-wheel in watchwork and process for treating this spiral
US6329066B1 (en) 2000-03-24 2001-12-11 Montres Rolex S.A. Self-compensating spiral for a spiral balance-wheel in watchwork and process for treating this spiral
WO2010125026A1 (en) * 2009-04-28 2010-11-04 Federal-Mogul Wiesbaden Gmbh Sliding bearing element comprising a lead-free aluminum bearing metal layer
US8771838B2 (en) 2009-04-28 2014-07-08 Federal-Mogul Wiesbaden Gmbh Sliding bearing element comprising a lead-free aluminum bearing metal layer
EP2251746A3 (en) * 2009-05-11 2012-05-23 Seiko Instruments Inc. Timepiece Wheel and Timepiece
DE102009046647A1 (en) * 2009-11-12 2011-05-19 Schmidt, Lothar, Dipl.-Ing. Clock, has watch part made of aluminum or aluminum alloy and comprising hard anodized coating at its friction surfaces, where coating is generated by anodic oxidizing and has open pores in which solid or viscous lubricant is deposited
DE102009046647B4 (en) * 2009-11-12 2015-05-21 Lothar Schmidt Clock

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