WO2005054961A1 - Oscillating eccentric weight for the self-winding system of a timepiece, enabling all the mechanism of the timepiece to be viewed - Google Patents

Oscillating eccentric weight for the self-winding system of a timepiece, enabling all the mechanism of the timepiece to be viewed Download PDF

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Publication number
WO2005054961A1
WO2005054961A1 PCT/IB2004/003690 IB2004003690W WO2005054961A1 WO 2005054961 A1 WO2005054961 A1 WO 2005054961A1 IB 2004003690 W IB2004003690 W IB 2004003690W WO 2005054961 A1 WO2005054961 A1 WO 2005054961A1
Authority
WO
WIPO (PCT)
Prior art keywords
timepiece
flat plate
eccentric weight
oscillating
self
Prior art date
Application number
PCT/IB2004/003690
Other languages
French (fr)
Inventor
Luca Freudiger
Original Assignee
Luca Freudiger
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 Luca Freudiger filed Critical Luca Freudiger
Publication of WO2005054961A1 publication Critical patent/WO2005054961A1/en

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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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • G04B5/165—Weights consisting of several parts
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/02—Time pieces of which the clockwork is visible partly or wholly

Definitions

  • the present invention relates to the field of clock and watch making, and particularly its sector which concerns the making of self-winding timepieces, in other words those which are wound by the movements of the wrist on which the timepiece is worn.
  • the aforesaid winding operation is carried out by means of the movement of an eccentric oscillating weight which rotates about a point at which it is pivoted on the timepiece and therefore changes position with the movements of the wrist, transmitting its kinetic energy through a free wheel device to the spring which keeps the components of the timepiece mechanism running.
  • the aforesaid eccentric weight has the overall approximate shape of a circular sector with a predetermined angle of aperture, usually less than or equal to 180 degrees.
  • the base cover of the case is made from transparent material, through which it is possible to view the oscillating weight itself and the part of the timepiece mechanism not covered by the weight.
  • the arrangements made up to the present for this purpose mainly consist in concentrating the weight of the oscillating part in a peripheral ring and making holes or recesses of various shapes in the substantially flat plate which connects it to the said pivot point. Since both the peripheral ring and the said plate form a single unit, usually made from metal, portions of the plate connecting the ring to the pivot point are still necessarily present, and these portions cover areas of the mechanism, thus impeding viewing.
  • the inventor of the solution according to the present application has devised an oscillating eccentric weight which does not consist of a single piece of metallic material, but which is formed by a peripheral, in other words radially outer, metal ring, to which is fixed, in a radially inner position, a flat plate which connects it to its pivot point and which is made from a transparent material. It is thus possible to perceive all parts of the timepiece mechanism simultaneously, as they are clearly visible through the said transparent plate.
  • the present invention therefore proposes an oscillating eccentric weight for the self-winding system of a timepiece as described in the attached Claim 1.
  • Figure 1 is a plan view of an oscillating weight according to the invention
  • Figure 2 is a cross section of the portion of the oscillating weight of Figure 1 in the area of connection between a metallic peripheral ring and a flat plate of transparent material.
  • an oscillating eccentric weight 1 comprises a metallic peripheral ring 4, placed in a radially outer position, connected to a pivot member 2 of a known type by means of a radially inner flat plate 5, formed entirely from transparent material.
  • the said flat plate 5 can be made from various types of transparent material, which may range from synthetic resins to crystal glass and the like, according to the type, value and quality of the timepiece.
  • synthetic resins to crystal glass and the like
  • the inventor has also envisaged the possibility of making it from synthetic sapphire, a material having known qualities of hardness, transparency and abrasion- resistance.
  • the peripheral ring 4 can have a U-shaped section into which the edge of the flat plate 5 penetrates and is fixed in this position by gluing or by means of small fixing screws (not shown in the drawings) .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

What is described is an oscillating eccentric weight (1) for the self-winding system of a timepiece, comprising a pivot member (2) and a substantially flat plate (3) connected to it and having the shape of a circular sector with a specified angle of aperture (a), in which the said plate (3) consists of at least two concentric component parts (4, 5) consisting of a radially outer metallic ring (5) connected to the said pivot member (2) by means of a radially inner flat plate (4) formed entirely from transparent material.

Description

OSCILLATING ECCENTRIC WEIGHT FOR THE SELF-WINDING SYSTEM OF A TIMEPIECE , ENABLING THE MECHANISM OF THE TIMEPIECE TO BE VIEWED
The present invention relates to the field of clock and watch making, and particularly its sector which concerns the making of self-winding timepieces, in other words those which are wound by the movements of the wrist on which the timepiece is worn.
As is known by those skilled in the art, the aforesaid winding operation is carried out by means of the movement of an eccentric oscillating weight which rotates about a point at which it is pivoted on the timepiece and therefore changes position with the movements of the wrist, transmitting its kinetic energy through a free wheel device to the spring which keeps the components of the timepiece mechanism running. The aforesaid eccentric weight has the overall approximate shape of a circular sector with a predetermined angle of aperture, usually less than or equal to 180 degrees. In most self-winding timepieces using the oscillating weight described above, the base cover of the case is made from transparent material, through which it is possible to view the oscillating weight itself and the part of the timepiece mechanism not covered by the weight.
In timepieces of a more recent type, various arrangements have been made to reduce to a minimum the area of the oscillating weight which prevents the viewing of the mechanism, firstly in order to provide the widest possible view of the whole without necessarily having to move this weight, and secondly for aesthetic reasons.
The arrangements made up to the present for this purpose mainly consist in concentrating the weight of the oscillating part in a peripheral ring and making holes or recesses of various shapes in the substantially flat plate which connects it to the said pivot point. Since both the peripheral ring and the said plate form a single unit, usually made from metal, portions of the plate connecting the ring to the pivot point are still necessarily present, and these portions cover areas of the mechanism, thus impeding viewing.
The inventor of the solution according to the present application has devised an oscillating eccentric weight which does not consist of a single piece of metallic material, but which is formed by a peripheral, in other words radially outer, metal ring, to which is fixed, in a radially inner position, a flat plate which connects it to its pivot point and which is made from a transparent material. It is thus possible to perceive all parts of the timepiece mechanism simultaneously, as they are clearly visible through the said transparent plate.
The present invention therefore proposes an oscillating eccentric weight for the self-winding system of a timepiece as described in the attached Claim 1.
A more detailed description will now be given of a preferred example of embodiment of an oscillating eccentric weight according to the invention, with additional reference to the attached drawings, in which:
- Figure 1 is a plan view of an oscillating weight according to the invention; Figure 2 is a cross section of the portion of the oscillating weight of Figure 1 in the area of connection between a metallic peripheral ring and a flat plate of transparent material.
With reference initially to Figure 1, this shows how an oscillating eccentric weight 1 according to the invention comprises a metallic peripheral ring 4, placed in a radially outer position, connected to a pivot member 2 of a known type by means of a radially inner flat plate 5, formed entirely from transparent material.
All the details of the mechanism (not shown in the drawing) are clearly visible through this flat plate, which for practical purposes replaces the metallic plate used hitherto.
The said flat plate 5 can be made from various types of transparent material, which may range from synthetic resins to crystal glass and the like, according to the type, value and quality of the timepiece. However, the inventor has also envisaged the possibility of making it from synthetic sapphire, a material having known qualities of hardness, transparency and abrasion- resistance.
As regards the connection between the said peripheral ring 4 and the transparent flat plate 5, this can be formed by applying known methods or principles. For example, as shown in Figure 2, the peripheral ring 4 can have a U-shaped section into which the edge of the flat plate 5 penetrates and is fixed in this position by gluing or by means of small fixing screws (not shown in the drawings) .

Claims

Claims
1. Oscillating eccentric weight (1) for the self-winding system of a' timepiece, comprising a pivot member (2) and a substantially flat plate (3) connected to it and having the shape of a circular sector with a specified angle of aperture (α) , characterized in that the said plate (3) consists of at least two concentric component parts (4, 5) consisting of a radially outer metallic ring (4) connected to the said pivot member (2) by means of a radially inner flat plate (5) formed entirely from transparent material.
2. Oscillating eccentric weight according to Claim 1, in which the said flat plate (5) of transparent material is made from synthetic sapphire.
3. Oscillating eccentric weight according to any one of the preceding claims, in which the said metallic ring (4) is fixed to the said flat plate (5) by gluing. . Oscillating eccentric weight according to any one of Claims 1 to 3, in which the said metallic ring (4) is fixed to the said flat plate (5) by threaded means.
PCT/IB2004/003690 2003-12-02 2004-11-09 Oscillating eccentric weight for the self-winding system of a timepiece, enabling all the mechanism of the timepiece to be viewed WO2005054961A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02051/03 2003-12-02
CH20512003 2003-12-02

Publications (1)

Publication Number Publication Date
WO2005054961A1 true WO2005054961A1 (en) 2005-06-16

Family

ID=34638013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/003690 WO2005054961A1 (en) 2003-12-02 2004-11-09 Oscillating eccentric weight for the self-winding system of a timepiece, enabling all the mechanism of the timepiece to be viewed

Country Status (1)

Country Link
WO (1) WO2005054961A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7568831B2 (en) 2006-10-06 2009-08-04 Tiffany & Co. Watch Center Ag Tourbillion-type timepiece movement
JP2016095306A (en) * 2014-11-14 2016-05-26 ブランパン・エス アー Annular oscillating weight and timepiece having the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288207A (en) * 1950-12-30 1953-01-15 Berthoud Robert Oscillating mass, in particular for self-winding clockworks and methods of manufacturing the oscillating mass.
US6354731B1 (en) * 1998-05-07 2002-03-12 Janvier S.A. Oscillating winding weight for a timepiece with an automatic movement and timepiece fitted with such a winding weight
FR2852110A1 (en) * 2003-03-05 2004-09-10 Emmanuel Dietrich Wrist watch, has oscillator runner providing peripheral guide tracks and notched zone to transmit oscillation movement of oscillating winding masses, where runner is laid out on watch dial

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288207A (en) * 1950-12-30 1953-01-15 Berthoud Robert Oscillating mass, in particular for self-winding clockworks and methods of manufacturing the oscillating mass.
US6354731B1 (en) * 1998-05-07 2002-03-12 Janvier S.A. Oscillating winding weight for a timepiece with an automatic movement and timepiece fitted with such a winding weight
FR2852110A1 (en) * 2003-03-05 2004-09-10 Emmanuel Dietrich Wrist watch, has oscillator runner providing peripheral guide tracks and notched zone to transmit oscillation movement of oscillating winding masses, where runner is laid out on watch dial

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7568831B2 (en) 2006-10-06 2009-08-04 Tiffany & Co. Watch Center Ag Tourbillion-type timepiece movement
JP2016095306A (en) * 2014-11-14 2016-05-26 ブランパン・エス アー Annular oscillating weight and timepiece having the same

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