US3690061A - Watch having a two-piece winding stem - Google Patents

Watch having a two-piece winding stem Download PDF

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Publication number
US3690061A
US3690061A US89759A US3690061DA US3690061A US 3690061 A US3690061 A US 3690061A US 89759 A US89759 A US 89759A US 3690061D A US3690061D A US 3690061DA US 3690061 A US3690061 A US 3690061A
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US
United States
Prior art keywords
section
watch
stem
clutch
sections
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.)
Expired - Lifetime
Application number
US89759A
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English (en)
Inventor
Jean Humbert
Jean-Fred Studer
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.)
Omega Louis Brandt and Frere SA
Original Assignee
Omega Louis Brandt and Frere SA
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 Omega Louis Brandt and Frere SA filed Critical Omega Louis Brandt and Frere SA
Application granted granted Critical
Publication of US3690061A publication Critical patent/US3690061A/en
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
    • G04B37/00—Cases
    • G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
    • G04B37/066—Divided stem (tige brisee)

Definitions

  • the invention aims at overcoming this drawback by the fact that the first section of the stem comprises means cooperating with means provided on the second section of the stem for preventing relative rotation between the sections when they are hooked to each other.
  • FIGS. 1 to 3 are diagrammatic axial views, partially in section, of these three embodiments, respectively.
  • the broken winding stem of the watch according to the first embodiment comprises two sections 1 and 2, one said section being connected to the winding crown (not shown) and the other said section being connected to the watch movement (not shown). These sections may also be termed outer section and inner section, respectively.
  • section 1 has a head 3 engaging a clip-shaped portion, comprising two jaws 4, of the section 2, so that it may be resiliently or elastically held by these jaws and is thus connected with the section 2, this enabling the user to perform the usual control functions (winding, setting, etc.).
  • One of said sections presents between its main body 5 and a portion 6 of smaller diameter carrying the head 3, an enlarged clutch portion 7 comprising a two truncated cone.
  • the truncated cone is adapted to engage in a clutch recess 8 of corresponding shape in the other section 2 of the winding stem.
  • the cone 7 and recess 8 may have cooperative clutch faces of known type.
  • both sections 1 and 2 When both sections 1 and 2 are connected on to each other, they are fixed together so that the watch movement connected to one of said sections within the watch case is prevented from rotating within the case, due to the fact that the clutch recess '8 abutts the enlarged clutch portion 7 of the section 1 and that the section 1 is itself retained by the watch-case.
  • the same arrangement is again found as in the first embodiment, except that the enlarged rti on 10 provided on the section 1 has a generally cy mdrical shape having a chamfer 11 on its outer edge and having a clutch face 12 engagable by and cooperative with the clutch face 10'.
  • the clutch faces may comprise any known type of clutch surfaces.
  • This enlarged portion 10 partially engages a recess 12 of corresponding shape provided in the inner section 2 of the winding stem. The operation is the same as for the stem of FIG. 1.
  • the enlarged portion is replaced by a pin 13 which is driven into the portion 6 of smaller diameter carrying the head 3.
  • the pin 13 extends in a direction perpendicular to the plane of the opening of the clip 4, 4.
  • the section 2 of the winding stem has at its front end a transverse slot or groove 14, which is parallel to the pin 13.
  • a broken winding stem for a watch comprising a section to be secured to the winding crown and a section to be connected to the movement of the watch, one such section having a head elastically held in a clip-shaped portion of the other such section when said sections are moved toward each other, and clutch means releasably engagable to secure said sections together when said sections are moved toward each other to engage said head and clip portion, said clutch means comprising a clutch element on each said section, said elements each having a clutch face capable when in engagement with each other of clutching said sections together.
  • a watch stem according to claim 1 wherein the one section of the stem has an enlarged portion engaging at least partially a recess of the other section of the stem.
  • a watch stem according to claim 1 wherein the one section of the stem carries a pin engaging a transverse slot of the other section of the stern.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Mechanical Operated Clutches (AREA)
US89759A 1969-12-05 1970-11-16 Watch having a two-piece winding stem Expired - Lifetime US3690061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1816169 1969-12-05

Publications (1)

Publication Number Publication Date
US3690061A true US3690061A (en) 1972-09-12

Family

ID=4430942

Family Applications (1)

Application Number Title Priority Date Filing Date
US89759A Expired - Lifetime US3690061A (en) 1969-12-05 1970-11-16 Watch having a two-piece winding stem

Country Status (4)

Country Link
US (1) US3690061A (enrdf_load_stackoverflow)
JP (1) JPS514787B1 (enrdf_load_stackoverflow)
DE (1) DE2052644A1 (enrdf_load_stackoverflow)
GB (1) GB1306247A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274152A (en) * 1978-04-19 1981-06-16 Kabushiki Kaisha Suwa Seikosha Setting mechanism of a watch
US5094615A (en) * 1990-02-09 1992-03-10 Young Dental Manufacturing Company Dental polishing head and method
US20070247978A1 (en) * 2006-04-25 2007-10-25 The Swatch Group Management Services Ag Watch with rotating element
EP2275883A1 (fr) 2009-07-16 2011-01-19 Rolex Sa Pièce d'horlogerie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH333586A (fr) * 1956-07-13 1958-10-31 Piquerez Sa Ervin Pièce d'horlogerie
CH346175A (fr) * 1958-04-16 1960-04-30 Taubert Bernard Montre étanche
US3146580A (en) * 1961-11-28 1964-09-01 Simon John Winding stem for time-pieces
US3358438A (en) * 1966-04-22 1967-12-19 Simon John Jointed winding stem with screwed-on button

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4428756Y1 (enrdf_load_stackoverflow) * 1967-05-26 1969-11-28
JPS5133476Y2 (enrdf_load_stackoverflow) * 1971-09-22 1976-08-19

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH333586A (fr) * 1956-07-13 1958-10-31 Piquerez Sa Ervin Pièce d'horlogerie
CH346175A (fr) * 1958-04-16 1960-04-30 Taubert Bernard Montre étanche
US3146580A (en) * 1961-11-28 1964-09-01 Simon John Winding stem for time-pieces
US3358438A (en) * 1966-04-22 1967-12-19 Simon John Jointed winding stem with screwed-on button

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274152A (en) * 1978-04-19 1981-06-16 Kabushiki Kaisha Suwa Seikosha Setting mechanism of a watch
US5094615A (en) * 1990-02-09 1992-03-10 Young Dental Manufacturing Company Dental polishing head and method
US20070247978A1 (en) * 2006-04-25 2007-10-25 The Swatch Group Management Services Ag Watch with rotating element
SG136914A1 (en) * 2006-04-25 2007-11-29 Swatch Group Man Serv Ag Watch with rotating element
US7651259B2 (en) * 2006-04-25 2010-01-26 The Swatch Group Management Services Ag Watch with rotating element
EP2275883A1 (fr) 2009-07-16 2011-01-19 Rolex Sa Pièce d'horlogerie

Also Published As

Publication number Publication date
JPS514787B1 (enrdf_load_stackoverflow) 1976-02-14
GB1306247A (enrdf_load_stackoverflow) 1973-02-07
DE2052644A1 (de) 1971-06-16

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