EP2241945A2 - Chronographenmechanismus und mit diesem Mechanismus ausgerüstete Uhr - Google Patents

Chronographenmechanismus und mit diesem Mechanismus ausgerüstete Uhr Download PDF

Info

Publication number: EP2241945A2
Authority: EP; European Patent Office
Prior art keywords: hammer; seconds; minutes; minute; chronograph
Prior art date: 2009-04-15
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

EP10003433A

Other languages

English (en)

French (fr)

Other versions

EP2241945A3 (de

EP2241945B1 (de

Inventor

Pierre-Maurice Rochat

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.)

2009-04-15

Filing date

2010-03-30

Publication date

2010-10-20

2010-03-30 Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve

2010-10-20 Publication of EP2241945A2 publication Critical patent/EP2241945A2/de

2016-12-21 Publication of EP2241945A3 publication Critical patent/EP2241945A3/de

2017-07-26 Application granted granted Critical

2017-07-26 Publication of EP2241945B1 publication Critical patent/EP2241945B1/de

Status Active legal-status Critical Current

2030-03-30 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
- G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
- G04F7/0814—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with double hammer, i.e. one hammer acts on two counters

Definitions

the present invention relates to a column or cam wheel chronograph mechanism comprising a chronograph wheel secured to a heart of seconds and a seconds indicator and a minute counter wheel integral with a heart. minutes and cooperating with a jumper minutes and a hammer minutes and a hammer seconds cooperating with the corresponding hearts.
the object of the present invention is to provide a chronograph mechanism for which the adjustment is free of machining or retouching of parts such as the breakdowns of hammers or the sections of the jumper so that its setting is greatly facilitated, takes less time and can be done by a careful workforce certainly but does not require the high specialization of a watchmaker trimmer.
Another object of the present invention is to provide a chronograph mechanism in which the settings of the hammers are almost automatic.
the present invention relates to a chronograph mechanism comprising a chronograph wheel on which are fixed a second heart and a second indicator, a minute counter wheel carrying a minute heart and cooperating with a meter jumper, and a hammer of the seconds and a hammer of the minutes cooperating with the corresponding hearts; characterized in that the seconds and minutes hammers are pivoted coaxially independently of each other and each individually subjected to a hammer spring of the seconds respectively to a hammer spring of the minutes tending to rotate them in the direction of their respective hearts; and in that a connecting member connects the hammer minutes to the hammer seconds while allowing them to move angularly relative to each other a preset value, all arranged so that in reset position performed said hammers are both in contact with the base of their respective heart.
the present invention also relates to a timepiece provided with such a chronograph mechanism.
the chronograph mechanism, object of the present invention comprises, in the illustrated example, a column wheel 1, a chronograph wheel 2 integral with a heart of seconds 3, a minute counter wheel 4 integral with a heart
a column wheel 1 a chronograph wheel 2 integral with a heart of seconds 3
a minute counter wheel 4 integral with a heart
These elements are traditional of a column wheel chronograph mechanism and will not be described here in detail.
the clutch rocker carrying the intermediate wheel, the drive wheel, and the chronograph wheel stopper are not illustrated which are similar to those used in a conventional chronograph mechanism.
the present chronograph mechanism comprises a minute hammer 6, one end of which is integral with a pivot axis 7 having a bearing surface 8 on which the minute hammer 6 is driven and two pivot-shaped ends 9, 10 intended to be pivoted. between bridges or between the turntable and a bridge of a movement.
This hammer minutes 6 has a side arm 11 carrying near its end a pin 12 against which rests the end 13 of a spring of the hammer minutes 14.
This spring of the hammer minutes 14 tends to move the free end into a failure 15 towards the heart of minutes 5 against which this failure 15 is based.
the middle part of this minute hammer 6 comprises a hook-shaped retaining pawl 16 having an inclined ramp 17 ending in a spout 18 defining with the minute hammer 6 a retaining housing 19.
This retaining member 16 is pivotally mounted under the hammer minutes 6 and subjected to an elastic return action (not shown) tending to maintain it in the active position shown in the drawing against a stop (not shown) of the hammer 6. Finally, this Hammer minutes 6 still has near its axis 7 a hole 20, threaded or not.
the present chronograph mechanism further comprises a seconds hammer 21 comprising at one of its ends a bore 22 for pivoting the hammer seconds 21 freely around the scope 8 of the axis 7 of the hammer minutes 6.
the Another end of the seconds hammer 21 terminates in a failure 23 intended to cooperate with the heart of the seconds 3.
This seconds hammer 21 has a bore 24 whose center is separated from the center of the bore 22 by a value equal to the distance separating the center of the axis 7 from the minute hammer 6 from the center of the hole 20 of this minute hammer 6.
This bore 24 is of larger diameter than said hole 20.
This seconds hammer 21 has a lateral arm 25 provided with a pin 26 serving as a stop at the end 27 of the second hammer return spring 28.
This return spring seconds hammer 28 tends to apply the tip 23 of the hammer seconds 21 against the periphery of the heart of seconds 3.
a connecting member 29 has a slotted head 30, a bearing 31 and an end 32 screwed or driven into the hole 20 of the minute hammer 6, the bearing 31 of this connecting member 29 being in the assembled position in the bore 24 of the hammer seconds 21 ( figure 4 ).
the seconds hammer 6 further comprises a spout B cooperating with the columns C of the column wheel so that it can reset the springs 14 and 28 when starting the chronograph.
the chronograph mechanism according to the invention also comprises a retractable hammer latch 33 under the action of the reset pushbutton of the chronograph extending perpendicularly to the plane of the minute hammer 6 and co-operating with the retaining member 16 of this hammer minutes.
the chronograph mechanism further comprises a minute counter jumper 34 pivoted on a support 35 pivotally mounted coaxially with the minute counter wheel 4.
a screw 36 screwed into a fixed part of the movement, platinum or bridge, passing through a slot of the support 35 makes it possible to adjust and fix the angular position of the jumper 34 with respect to the minute counter wheel 4 when it is in the reset position of the chronograph.
the minute counter jumper 34 is subjected to the action of a return spring 37.
the two hammers being in support on the basis of their respective heart ( Fig. 6 and 7 ) the watchmaker only has to adjust the angular position of the minute counter jumper support 34 so that this jumper 34 is in contact with two adjacent teeth of the minute counter wheel 4 and to fix said support 35 in this position with the aid of the screw 36.
the synchronization of the hammers 6, 21 is carried out automatically.
the setting of the minute counter jumper is simplified by means of its support centered on the axis of the minute counter, the setting is not a problem to position the jumper of the minute counter and to define the force necessary for a good operation of the minute counter.
the spout B of the seconds hammer 21 is moved anticlockwise by a column C of the column wheel 1.
the minutes hammer being driven by the connecting member 29, the retaining pawl 16 is moved counterclockwise, its ramp 17 sliding on the hammer lock 33 until such time as the latch hammer 33 exceeds the spout 18 of the pawl 16 and that it returns to the rest position under the effect of its return spring thereby placing said latch 33 in the retaining housing of the pawl 16.
the spout B of the hammer seconds comes to rest on a column C of the column wheel 1, figure 2 .
the hammer lock 33 is retracted and the hammers 6, 21 fall on their corresponding cores 5, 3 and set the chronograph counters to zero, figure 3 .
the holding member 29 keeps the seconds hammer 21 at a determined distance from the hammer minutes 6, while leaving an angular fringe amplitude determined between these two hammers.
This connecting member 29 may be a screw, a rivet etc.
the hook 16 of the hammer minutes is fixed and integral with the hammer 6.
the latch 33 is mounted on a support pivoting on an axis parallel to the axis 7 of pivoting hammers.
the seconds hammer could be driven on the pivot axis 7 and it is then the minutes hammer that would be pivoted freely on the bearing 8 of this pivot axis.
the two hammers seconds and minutes could be pivoted freely on the pivot axis 7.
a washer 40 ( figure 5 ) is driven on the pivot axis 7 and serves as an axial stop for the two hammers 6, 21.
this new construction of the chronograph mechanism can also be used in a chronograph mechanism without a column wheel, for example a chronograph cam mechanism.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Measurement Of Unknown Time Intervals (AREA)

EP10003433.9A 2009-04-15 2010-03-30 Chronographenmechanismus und mit diesem Mechanismus ausgerüstete Uhr Active EP2241945B1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH00601/09A CH700752B1 (fr)	2009-04-15	2009-04-15	Mécanisme de chronographe et pièce d'horlogerie munie d'un tel mécanisme.

Publications (3)

Publication Number	Publication Date
EP2241945A2 true EP2241945A2 (de)	2010-10-20
EP2241945A3 EP2241945A3 (de)	2016-12-21
EP2241945B1 EP2241945B1 (de)	2017-07-26

Family

ID=42110345

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP10003433.9A Active EP2241945B1 (de)	2009-04-15	2010-03-30	Chronographenmechanismus und mit diesem Mechanismus ausgerüstete Uhr

Country Status (2)

Country	Link
EP (1)	EP2241945B1 (de)
CH (1)	CH700752B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2884350A2 (de)	2013-12-16	2015-06-17	Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie	Nullrückstellvorrichtung mit unabhängigen Hämmern
EP2500785A3 (de) *	2011-03-18	2017-09-13	Patek Philippe SA Genève	Uhrmechanismus und mit diesem Uhrmechanismus ausgestattete Uhr

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH271999A (fr) *	1948-04-21	1950-11-30	Vve James Aubert & Cie	Chronographe.
US2641899A (en) *	1950-07-31	1953-06-16	Jeanneret & Co R	Chronograph setting hammer system
DE1773023A1 (de) *	1967-06-14	1971-10-28	Valjoux Sa	Vorrichtung zur Nullrueckstellung zweier Chronographenzaehler
CH524853A (fr) *	1967-09-22	1972-03-15	Dubois & Depraz Sa	Montre-bracelet chronographe
JPS4938699Y1 (de) *	1970-12-28	1974-10-23
FR2469743A1 (fr) *	1979-11-16	1981-05-22	Suisse Horlogerie	Mecanisme de positionnement d'une roue de centre pour piece d'horlogerie
EP1746471B1 (de) *	2005-07-20	2019-09-18	Breitling AG	Null-Rückstellungsvorrichtung für zwei Zeitzähler

2009
- 2009-04-15 CH CH00601/09A patent/CH700752B1/fr not_active IP Right Cessation
2010
- 2010-03-30 EP EP10003433.9A patent/EP2241945B1/de active Active

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2500785A3 (de) *	2011-03-18	2017-09-13	Patek Philippe SA Genève	Uhrmechanismus und mit diesem Uhrmechanismus ausgestattete Uhr
EP2884350A2 (de)	2013-12-16	2015-06-17	Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie	Nullrückstellvorrichtung mit unabhängigen Hämmern
JP2015118082A (ja) *	2013-12-16	2015-06-25	ソシエテ・アノニム・ドゥ・ラ・マニュファクチュア・ドーロジュリー・オードゥマール・ピゲ・エ・シ	独立ハンマーを有するゼロリセット装置
US9164492B2 (en)	2013-12-16	2015-10-20	Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie	Zero-reset device with independent hammers
EP2884350A3 (de) *	2013-12-16	2016-05-25	Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie	Nullrückstellvorrichtung mit unabhängigen Hämmern

Also Published As

Publication number	Publication date
CH700752A2 (fr)	2010-10-15
CH700752B1 (fr)	2014-03-14
EP2241945A3 (de)	2016-12-21
EP2241945B1 (de)	2017-07-26

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