EP1513028A2 - Aufzugskrone für mechanische Uhr - Google Patents

Aufzugskrone für mechanische Uhr Download PDF

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Publication number
EP1513028A2
EP1513028A2 EP04005384A EP04005384A EP1513028A2 EP 1513028 A2 EP1513028 A2 EP 1513028A2 EP 04005384 A EP04005384 A EP 04005384A EP 04005384 A EP04005384 A EP 04005384A EP 1513028 A2 EP1513028 A2 EP 1513028A2
Authority
EP
European Patent Office
Prior art keywords
ring
winding crown
crown
winding
timepiece
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.)
Granted
Application number
EP04005384A
Other languages
English (en)
French (fr)
Other versions
EP1513028A3 (de
EP1513028B1 (de
Inventor
Pascal Cavicchiolo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Publication of EP1513028A2 publication Critical patent/EP1513028A2/de
Publication of EP1513028A3 publication Critical patent/EP1513028A3/de
Application granted granted Critical
Publication of EP1513028B1 publication Critical patent/EP1513028B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/06—Keys or the like with means preventing overwinding
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/041—Construction of crowns for rotating movement; connection with the winding stem; winding stems
    • 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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems

Definitions

  • the present invention relates to a piece winding crown mechanical watchmaking, more particularly a winding crown comprising a torque limiting device to prevent parts of the timepiece such as the mainspring, the winding rod, the cogs, etc. break when the user continues to turn the crown after that the mainspring has been completely reassembled.
  • FR 917,982 also discloses a crown of reassembly comprising an elastic friction disk driving up to a certain winding threshold of the mainspring a plate secured to the rod of reassembly.
  • This crown can certainly have a low height but, so that the leaf spring that constitutes the elastic friction disk has a sensitivity sufficient, the radial dimension of the latter, and therefore of the crown, must be relatively important.
  • the present invention aims to remedy the aforementioned drawbacks and proposes, for this purpose, a winding crown according to claim 1 annexed, with particular embodiments being defined in the dependent claims, as well as a timepiece incorporating it.
  • a winding crown according to the invention for a timepiece mechanical comprises a cap 1 and, mounted in the cap 1 coaxially to this, a workpiece 2 and a driven part 3.
  • the training part 2 is a ring driven into the cap 1 and therefore solidarity with the latter.
  • the driven part 3 consists of a plate 30 transversal, that is to say perpendicular to the axis 4 of the crown, and of an element central fastening 32 formed in one piece with the plate 30 and protruding axially from the lower face 34 of the plate 30 facing the middle 5 of the timepiece.
  • the central fastening element 32 has a threaded bore axial 36 adapted to receive a corresponding threaded end of the rod of reassembly (not shown) of the timepiece to make the plate 30 integral with this winding rod and thus allow it to control the twist motor spring.
  • the ring 2 comprises cavities 20, eight in number in the example illustrated, regularly distributed around axis 4 of the crown and housing each a coil compression spring 22 and a friction member associated 24.
  • Each friction member 24 is in the form of a nipple or ball snap-fastener pushed parallel to the axis 4 by its respective spring 22 against the lower face 34 of the plate 30, and cooperates with a corresponding cell 38 formed in said lower face 34.
  • the springs 22 maintain the friction 24 in the respective cells 38 during reassembly, so that the torque of the ring 2 is transmitted to the plate 30.
  • the friction members 24 disappear into the cavities 20, the force of the springs 22 being no longer sufficient to overcome the resistance of the plate 30, and begin to slide on the underside 34 of the plateau 30, which is then no longer driven.
  • This limitation of the torque applied to plate 30 makes it possible to prevent certain parts of the timepiece from particular the mainspring, the winding stem and the wheels, be subject to to too great constraints.
  • the friction members 24 produce at each passage in a cell 38 a "Click" indicating to the user that the mainspring is completely reassembled.
  • the winding crown according to the invention is sealed by first and second O-rings 6, 7 held in respective housings 8, 9 formed in the ring 2.
  • the first O-ring 6 seals between the ring 2 and a crown tube 10 driven into the middle part 5 of the piece watchmaking and surrounding the winding stem.
  • the second O-ring 7 ensures the seal between the ring 2 and the cap 1.
  • the winding crown according to the invention has several advantages compared to conventional torque limiting crowns.
  • the force and therefore the dimensions of each spring can be relatively low, which makes it possible to reduce the axial space requirement and radial of the crown.
  • this winding crown can be easily returned waterproof, as previously indicated.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP20040005384 2003-09-01 2004-03-06 Aufzugskrone für mechanische Uhr Expired - Lifetime EP1513028B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH14942003 2003-09-01
CH14942003A CH696823A5 (fr) 2003-09-01 2003-09-01 Couronne de remontage pour pièce d'horlogerie mécanique.

Publications (3)

Publication Number Publication Date
EP1513028A2 true EP1513028A2 (de) 2005-03-09
EP1513028A3 EP1513028A3 (de) 2010-05-19
EP1513028B1 EP1513028B1 (de) 2012-08-01

Family

ID=34120762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040005384 Expired - Lifetime EP1513028B1 (de) 2003-09-01 2004-03-06 Aufzugskrone für mechanische Uhr

Country Status (4)

Country Link
EP (1) EP1513028B1 (de)
CH (1) CH696823A5 (de)
DE (1) DE04005384T1 (de)
HK (1) HK1070699A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566708A3 (de) * 2004-01-28 2008-03-05 Richemont International S.A. Aufzugsvorrichtung
CN112882371A (zh) * 2019-11-29 2021-06-01 梅科股份公司 用于时计的表冠/推动件

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US352257A (en) 1886-11-09 Teeeitoey
FR917982A (fr) 1944-11-27 1947-01-27 Dispositif de remontage fiexible applicable notamment aux petites montres

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2311230A (en) * 1942-04-07 1943-02-16 Hill Charles Spring winding device
US2571879A (en) * 1946-07-25 1951-10-16 Hil Jon Safety Crown Corp Overload release coupling
CH274344A (de) * 1949-02-04 1951-03-31 Weis August Aufziehvorrichtung für die mit Aufziehwelle versehene Triebfeder von Federtriebwerken.
US2927420A (en) * 1958-04-21 1960-03-08 Hil Jon Safety Crown Corp Waterproof watch winding means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US352257A (en) 1886-11-09 Teeeitoey
FR917982A (fr) 1944-11-27 1947-01-27 Dispositif de remontage fiexible applicable notamment aux petites montres

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566708A3 (de) * 2004-01-28 2008-03-05 Richemont International S.A. Aufzugsvorrichtung
CN112882371A (zh) * 2019-11-29 2021-06-01 梅科股份公司 用于时计的表冠/推动件
CN112882371B (zh) * 2019-11-29 2022-05-03 梅科股份公司 表冠和包括这种表冠的时计
US11366428B2 (en) 2019-11-29 2022-06-21 Meco Sa Crown/pusher for timepieces

Also Published As

Publication number Publication date
CH696823A5 (fr) 2007-12-14
EP1513028A3 (de) 2010-05-19
HK1070699A1 (en) 2005-06-24
EP1513028B1 (de) 2012-08-01
DE04005384T1 (de) 2005-08-18

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