EP1947531A2 - Vorrichtung zur Einstellung der Bewegungsamplitude der Einkupplungswippe eines Chronographs mit Säulenrad - Google Patents

Vorrichtung zur Einstellung der Bewegungsamplitude der Einkupplungswippe eines Chronographs mit Säulenrad Download PDF

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Publication number
EP1947531A2
EP1947531A2 EP07024464A EP07024464A EP1947531A2 EP 1947531 A2 EP1947531 A2 EP 1947531A2 EP 07024464 A EP07024464 A EP 07024464A EP 07024464 A EP07024464 A EP 07024464A EP 1947531 A2 EP1947531 A2 EP 1947531A2
Authority
EP
European Patent Office
Prior art keywords
wheel
chronograph
cam
column
column wheel
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
EP07024464A
Other languages
English (en)
French (fr)
Other versions
EP1947531B1 (de
EP1947531A3 (de
Inventor
Didier Faoro
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 EP1947531A2 publication Critical patent/EP1947531A2/de
Publication of EP1947531A3 publication Critical patent/EP1947531A3/de
Application granted granted Critical
Publication of EP1947531B1 publication Critical patent/EP1947531B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0847—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with column wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement

Definitions

  • the present invention relates to a mechanical timepiece whose movement is provided with a chronograph mechanism comprising flip-flops and a column wheel as well as such a chronograph mechanism.
  • the present invention relates to a chronograph mechanism comprising a column wheel controlling the movements of a clutch rocker provided with a particular adjustment device of the amplitude of displacement of the clutch rocker.
  • This adjustment device determines more particularly the penetration of the toothing of an intermediate wheel, pivoted on the clutch rocker, in the toothing of the chronograph wheel. This penetration of the toothing of the intermediate wheel into the toothing of the chronograph wheel is decisive for the proper operation of the chronograph mechanism.
  • the clutch rocker carrying the intermediate wheel is pivoted concentrically to a driving wheel engaged with the intermediate wheel.
  • the spout, or free end, of the clutch rocker is in contact, under the effect of its return spring, with one of the columns of the column wheel, the column wheel the intermediate wheel does not mesh with the chronograph wheel.
  • the toothing of the intermediate wheel engages in the toothing of the chronograph wheel to drive it.
  • the degree of penetration of these teeth is essential despite the precision of these teeth due to small modules, manufacturing tolerances as well as poor round two wheels.
  • This degree of penetration is determined by the position of an eccentric against which abuts the eccentric clutch lever located between the axis of rotation of the clutch rocker and the tip of this rocker.
  • Such a displacement setting of the clutch rocker of a column wheel chronograph mechanism is known in particular from the document EP 1 316 869 or document CH 5821 .
  • the object of the present invention is to provide a device for adjusting the penetration of the toothing of the intermediate wheel in the toothing of the chronograph wheel which is more precise.
  • Another object of the present invention is to remove the eccentric adjusting the stroke of the clutch rocker to simplify the mechanism and its mounting. Indeed the eccentric being driven by a cone in a round hole, it requires a manual operation of setting up with a squared by the watchmaker.
  • the invention relates to a device for adjusting the amplitude of the displacement of the clutch rocker of a column wheel chronograph mechanism, accurate and simpler than the devices described above and which is distinguished by the features listed in claim 1.
  • the figure 1 illustrates the column wheel with its cap, the clutch rocker, the drive wheel, the intermediate wheel and the chronograph wheel of a chronograph mechanism in the disengaged or stopped position.
  • the figure 2 is a view similar to the figure 1 but in the engaged or walking position of the chronograph, the column wheel being provided with its hat.
  • the figure 3 illustrates on a larger scale the column wheel and the spout of the clutch rocker in the disengaged or stopping position of the chronograph, some parts being open for a better visibility of the mechanism.
  • the figure 4 is a figure similar to the figure 3 in the engaged or walking position of the chronograph.
  • the figure 5 is a diametral section of the column wheel during the adjustment operation of the chronograph mechanism.
  • the figure 6 is a diametral section of the column wheel provided with its cap, the nose of the clutch rocker being in abutment against a column.
  • the figure 7 is a diametral section of the column wheel provided with its cap, the nose of the clutch rocker having fallen between two columns, the bearing face thereof being in abutment on the edge of the cap of the column wheel .
  • the figure 8 is a cut similar to that of the figure 7 a variant of the adjustment device.
  • the accompanying drawing illustrates the part of the chronograph mechanism making it possible to describe the adjustment device according to the invention of the amplitude of displacement of the clutch rocker or of the penetration of the toothing of the intermediate wheel into the toothing of the wheel. chronograph.
  • the chronograph mechanism comprises, inter alia, a column wheel 1 comprising eight columns 2 uniformly distributed around its periphery and a wolf tooth 3 toothing comprising sixteen teeth.
  • This column wheel is pivoted on an internally threaded hollow shaft 4 secured to the bridge 5.
  • This column wheel 1 comprises a cap 6 resting on the hollow axis 4 and pivoted around it.
  • a screw 7 screwed into the hollow shaft 4 makes it possible to lock the cap 6 of the column wheel 1.
  • the peripheral part 17 of this cap 6 extending above the columns 2 of the column wheel also constitutes a limiting safety device. the axial displacement of the column wheel 1 in case of shocks.
  • the column wheel 1 is driven stepwise in rotation by an unillustrated pawl engaged with the toothing 3, pawl controlled by a non-illustrated control lever actuated traditionally by an unillustrated pusher.
  • the chronograph mechanism further comprises a clutch lever 10 pivoted about an axis 11 concentrically to a driving wheel 12 meshing permanently with an intermediate wheel 13 pivoted on a central portion of the clutch rocker 10. At its free end the clutch rocker 10 ends with a spout 14 cooperating with the column wheel 1. According to the angular position of the column wheel 1 the spout 14 takes bearing against the peripheral face of a column 2 of the column wheel or falls between two adjacent columns 2.
  • the spout 14 has in its end portion 18 a smaller thickness than that of the rocker thereby forming a bearing surface 16.
  • the peripheral surface 17 of the cap 6 of the wheel columns 1 is oval and not circular.
  • the angular position of the cap 6 on the column wheel 1 determines the engaged angular position of the clutch rocker 10. To adjust this position simply unscrew slightly the fixing screw 7 of the cap 6 and move it angularly using a tool having fingers that are housed in holes 19 that includes the cap 6. Once the ideal position of the rocker 10 set the fastening screw 7 is tightened.
  • the device for adjusting the stroke of the clutch rocker is constituted by the oval peripheral surface 17 of the cap 6 of the column wheel 1 cooperating with the bearing face 16 of the spout 14 of the rocker d clutch 10.
  • the cap 6 thus has three functions, an aesthetic function, a function of limiting the axial displacements of the column wheel 1 in the event of shocks and a function of adjusting the penetration of the teeth of the intermediate wheels 13 and the chronograph 15.
  • the mechanism is thus simplified by abandoning the eccentric generally used for adjusting the stroke of the clutch rocker.
  • the adjustment of the stroke of the clutch rocker 10 is more precise because it is performed on the point of the clutch lever farthest from its pivot center, the displacement of the end of the spout 14 is greater amplitude than the displacement of the intermediate wheel which allows a very precise adjustment.
  • the diameter of the cap 6 of the column wheel 1 is at least four to eight times greater than that of a usual control eccentric, it follows that the accuracy and visibility of the setting are greatly increased. This setting is also more progressive and therefore easier to perform.
  • the ovalization of the cap 6 of the crown wheel is invisible to the naked eye, because the difference between the large and the small outer diameter is typically of the order of a few hundredths of a millimeter, for example 0.03 at 0.08 mm.
  • the cap 6 of the column wheel 1 could have an off-center peripheral circumference rather than an equilibrium the result would be the even.
  • a portion of the circumference of the cap has a distance to its center which varies according to its angular orientation so that said cap constitutes a cam for adjusting the position of the spout 14 of the latch. clutch when it is between two columns 2 of the column wheel 1.
  • the cap 6 of the column wheel may have, seen from above, a circular shape but have on its underside an eccentric boss 21, the peripheral surface 22 serves as an adjustment cam cooperating with the bearing face 16 of the spout 14 clutch lever 10.
  • the device for adjusting the penetration of the toothing of the intermediate wheel 13 into the toothing of the chronograph wheel 15 comprises on the one hand a bearing surface 16 carried by the spout 14 of the rocker d clutch and on the other hand a cam 17; 21,22 concentrically pivoted to the column wheel 1, preferably but not necessarily integrated in the cap 6 of the column wheel 1.
  • This cam whose angular position determines the penetration of the toothing of the intermediate wheel 13 into the toothing of the chronograph wheel 15 is located at least partially above the column wheel, and can be fixed in the desired angular position, for example using a screw.
  • This cam is preferably concentric with the column wheel 1 and in the preferred embodiment integrated in the cap 6 of this column wheel 1.
  • the support face 16 of the spout 14 could be constituted by a pin driven into said spout 14.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP07024464.5A 2007-01-22 2007-12-18 Vorrichtung zur Einstellung der Bewegungsamplitude der Einkupplungswippe eines Chronographs mit Säulenrad Active EP1947531B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00085/07A CH703809B1 (fr) 2007-01-22 2007-01-22 Mécanisme de chronographe à roue à colonne et pièce d'horlogerie munie d'un tel mécanisme.

Publications (3)

Publication Number Publication Date
EP1947531A2 true EP1947531A2 (de) 2008-07-23
EP1947531A3 EP1947531A3 (de) 2011-05-25
EP1947531B1 EP1947531B1 (de) 2015-08-19

Family

ID=38984268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07024464.5A Active EP1947531B1 (de) 2007-01-22 2007-12-18 Vorrichtung zur Einstellung der Bewegungsamplitude der Einkupplungswippe eines Chronographs mit Säulenrad

Country Status (2)

Country Link
EP (1) EP1947531B1 (de)
CH (1) CH703809B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251747A3 (de) * 2009-05-12 2016-12-07 Patek Philippe SA Genève Chronographenmechanismus und mit diesem Mechanismus ausgestattete Uhr

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH5821A (fr) 1892-11-04 1893-03-31 Lugrin Henry Alfred Perfectionnement aux méchanismes de chronographes
EP1316869A2 (de) 2001-12-03 2003-06-04 Ortho-Clinical Diagnostics, Inc. Verbesserungen einer Fluiddosiereinrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR806906A (fr) * 1936-05-28 1936-12-29 Leon Levy & Freres S A Mécanisme de chronographe
CH209682A (fr) * 1939-01-10 1940-04-30 Hahn Charles Chronographe-compteur.
EP1296205A1 (de) * 2001-09-24 2003-03-26 Girard-Perregaux S.A. Chronographmechanismus
EP1316863A1 (de) * 2001-11-09 2003-06-04 Manufacture Roger Dubuis S.A. Formuhrwerk mit Chronograph

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH5821A (fr) 1892-11-04 1893-03-31 Lugrin Henry Alfred Perfectionnement aux méchanismes de chronographes
EP1316869A2 (de) 2001-12-03 2003-06-04 Ortho-Clinical Diagnostics, Inc. Verbesserungen einer Fluiddosiereinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251747A3 (de) * 2009-05-12 2016-12-07 Patek Philippe SA Genève Chronographenmechanismus und mit diesem Mechanismus ausgestattete Uhr

Also Published As

Publication number Publication date
EP1947531B1 (de) 2015-08-19
EP1947531A3 (de) 2011-05-25
CH703809B1 (fr) 2012-03-30

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