EP3805868A1 - Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie - Google Patents

Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie Download PDF

Info

Publication number
EP3805868A1
EP3805868A1 EP19202666.4A EP19202666A EP3805868A1 EP 3805868 A1 EP3805868 A1 EP 3805868A1 EP 19202666 A EP19202666 A EP 19202666A EP 3805868 A1 EP3805868 A1 EP 3805868A1
Authority
EP
European Patent Office
Prior art keywords
barrel
spring core
spring
geneva wheel
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
EP19202666.4A
Other languages
German (de)
English (en)
Other versions
EP3805868B1 (fr
Inventor
Claude Greisler
Pascal Argast
Maxime Gigandet
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.)
Armin Strom Ag
Original Assignee
Armin Strom Ag
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 Armin Strom Ag filed Critical Armin Strom Ag
Priority to EP19202666.4A priority Critical patent/EP3805868B1/fr
Publication of EP3805868A1 publication Critical patent/EP3805868A1/fr
Application granted granted Critical
Publication of EP3805868B1 publication Critical patent/EP3805868B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor
    • G04B1/20—Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel
    • G04B1/205—Stop-mechanisms

Definitions

  • the present invention relates to a barrel for a clockwork.
  • the present invention relates to a barrel which allows any number of winding revolutions.
  • the present invention relates to a barrel which allows any number of winding revolutions, but limits the number of revolutions.
  • the present invention also relates to a clockwork which comprises a barrel according to the invention and to a clock which comprises a barrel according to the invention and / or a clockwork according to the invention.
  • the present invention is therefore based on the object of overcoming the aforementioned disadvantages and proposing a barrel, a clockwork and a clock which require a minimum number of components and which allow any number of winding revolutions but the number of revolutions limit.
  • a barrel for a clockwork comprising a spring core with a spring core pin and an eccentric one that interacts with the spring core pin
  • the axis of rotation of the Geneva wheel is aligned parallel to the longitudinal axis of the spring core, and the Geneva wheel can be indexed by one position by means of the spring core pin for each use of the spring core
  • the Geneva wheel comprising a toothing by means of which the number of revolutions of the spring core in the drainage direction of the barrel can be limited, and which allows any number of revolutions of the spring core in the winding direction of the barrel.
  • the barrel according to the invention the number of revolutions of the barrel can be limited with a simple mechanism based on a Geneva wheel, without the number of winding revolutions being limited.
  • the barrel according to the invention requires fewer components than the barrels known from the prior art and is therefore easier to manufacture and assemble. Since fewer components are required, the barrel according to the invention is also less prone to malfunctions and is easier to repair.
  • the barrel according to the invention also allows any number of winding revolutions, the barrel can be used in a clockwork with automatic winding without the risk of the barrel failing. It is important to note, however, that the barrel according to the invention can also be used in a hand-wound clockwork.
  • the toothing of the Geneva wheel has a tooth gap which is designed so that a rotation of the spring core can be blocked in the direction of the barrel.
  • the number of revolutions can be limited by the interaction of the spring core pin and the Geneva wheel. Consequently, the limitation of the run-off revolutions is achieved solely by the design of the run-off tooth gap.
  • the toothing of the Geneva wheel has a winding tooth gap which is designed so that the spring core can be rotated in the winding direction of the barrel without the Geneva wheel being indexed. Thanks to the design of the elevator tooth gap, the spring core can continue to rotate without the Maltese cross wheel being indexed. As a result, the spring core can continue to rotate indefinitely in the winding direction. As explained above, it is particularly advantageous if the barrel according to the invention is used in a clockwork with an automatic winding mechanism.
  • the Geneva wheel is externally toothed.
  • known spring barrels with a Maltese cross wheel according to the present invention can easily be supplemented and thus converted.
  • the converted barrels can then limit the number of revolutions and allow the number of elevator revolutions as required.
  • the barrel comprises a return spring and a return finger attached to the Geneva wheel, which are designed and aligned in such a way that the return spring can be tensioned by means of the return finger and that the tensioned return spring moves the Geneva wheel into the rotational position of the Elevator tooth gap is traceable.
  • This ensures that the Geneva wheel can be precisely returned to a specific rotational position with respect to the axis of rotation of the spring core when the spring core pin is located in the elevator tooth gap and is rotated further in the elevator direction. This is particularly important when the spring core rotates in the direction of travel again after it has been fully wound. If, in this case, the Geneva wheel is always in a certain rotational position, an error-free "first" indexing in the direction of movement can be guaranteed.
  • the Geneva wheel is internally toothed.
  • the barrel can be built with a smaller number of components and thus made thinner.
  • the barrel comprises an indexing plate for the rotational position of the Geneva wheel.
  • the indexing plate can be used to ensure that the rotational position of the Geneva wheel is fixed between two indexes. This ensures that the Geneva wheel cannot turn freely when it is not being driven by the spring core pin.
  • the Geneva wheel comprises an indexing spring which can be engaged in indexing teeth of the indexing plate.
  • the Geneva wheel comprises an elastic winding tongue in the winding tooth gap, the winding tongue being radially displaceable in the winding direction by rotating the spring core pin, the winding tongue being designed such that the Geneva wheel can be indexed in the running direction of the barrel.
  • the winding tongue When the spring core is rotated in the unwinding direction after full winding, the winding tongue is designed in such a way that it can interact with the spring core in order to index the Geneva wheel in the unwinding direction. Thanks to the elastic winding tongue, the Maltese cross wheel is always in a certain position when it is fully wound. This ensures an error-free "first" indexing in the direction of flow. As a result, error-free functioning of the movement can be ensured and the precision of the watch can be increased.
  • a clockwork comprising a barrel according to the invention and by a clock comprising a clockwork according to the invention and / or a barrel according to the invention.
  • Figures 1 and 2 show a perspective view, or an exploded view, of a barrel 100 according to a first preferred embodiment of the present invention.
  • the barrel 100 comprises a cylindrical housing 101 and a cover 102.
  • the barrel 100 further comprises a tension spring 103, which is attached to the spring core 104 with the inner coil.
  • An innerspring pin 105 is also attached to the innerspring 104 and rotated together with the innerspring 104.
  • the barrel 100 further comprises an externally toothed Geneva wheel 106 on which a return finger 106a is attached.
  • a return spring 107 is provided, the function of which is explained below.
  • the housing 101 has a first window 101a through which the Maltese cross wheel 106 is visible and an indicator 101b which interacts with the return finger 106a in order to indicate the winding state of the tension spring 103.
  • Figures 3 and 4th show a perspective view, or a top view, of the barrel 100 in which the housing 101 has been hidden.
  • the barrel 100 has a drag spring 108, which serves as a slip clutch to prevent damage to the tension spring.
  • the Drag spring 108 in particular prevents the tension spring 103 from tearing apart when it is fully wound.
  • the Maltese cross wheel 106 comprises a toothing with a multiplicity of teeth 106b, which are separated by the tooth gaps 106c.
  • the head 106d of the teeth 106b has a shape that enables the spring core 104 to rotate.
  • the spring core pin 105 engages in the Maltese cross wheel 106, specifically in the tooth gaps 106c of the Maltese cross wheel 106 and moves this one position further per turn. In other words, the Maltese cross wheel 106 is indexed once per turn of the spring core pin 105.
  • the Geneva wheel 106 By rotating the spring core pin 105 about the axis of rotation of the spring core 104 in direction A (see Figure 4 ), which corresponds to the winding direction of the tension spring 103, the Geneva wheel 106 is driven in rotation in direction B. During the process, the Geneva wheel 106 and the spring pin 105 rotate in the opposite directions.
  • the Maltese cross wheel 106 has two specially designed tooth spaces, namely a drain tooth space 106e and an elevator tooth space 106f.
  • the drain tooth gap 106e is formed such that when the innerspring pin 105 has been received in the drain tooth gap, as in FIG Figure 5 shown, a further rotation of the Geneva wheel 106 in direction A ', your direction of rotation during the process, is blocked by the spring core pin 105. This allows the number of revolutions of the barrel to be limited. As a result, the area in which the tension spring 103 is needed and thus the effective spring force of the tension spring 103 on the following gear train can be limited.
  • Figure 5 accordingly sets the situation when the process is full, i.e. if the further turning of the Geneva wheel 106 in the process direction (direction A 'in Figure 5 ) is blocked by the spring core pin 105.
  • the spring core 104 and with it the spring core pin 105 rotates during the pulling in direction A.
  • the innerspring pin 105 engages in the direction 1 after half a turn closest tooth gap 106c of the Maltese cross wheel, as in Figure 6 shown.
  • the further turning of the spring core pin 105 in direction A accordingly drives the Geneva wheel 106 in rotation in direction B, as from the Figures 7 to 9 can be seen.
  • the Geneva wheel 106 is further indexed one rotational position per turn of the spring core pin 105.
  • the return spring 107 is tensioned by means of the return finger 106a by further turning the spring core pin 105 in direction A, as in FIG Figures 13 and 14th shown.
  • the Geneva wheel 106 is moved to the rotational position of by the return spring 107 Figure 11 returned. Due to the shape of the winding tooth gap 106f, the spring core 104, or the spring core pin 105, can continue to rotate without indexing the Geneva wheel 106 any further. Due to the design of the elevator tooth gap 106, the number of revolutions in the elevator is not limited by the Geneva wheel.
  • the force limitation can advantageously be achieved by the drag spring 108.
  • the interaction of the return spring 107 with the return finger 106a ensures that the Geneva wheel is always returned in a specific rotational position with respect to the axis of rotation of the spring core 104. This is particularly advantageous if the spring core 104 is rotated again in the direction B after it has been fully wound. If the Geneva wheel is always in a certain rotational position when the elevator is full, an error-free "first" indexing in the direction of movement can be guaranteed. As a result, the movement of the watch can function correctly and the watch's precision can be increased.
  • Figures 15 and 16 show a perspective view, or an exploded view, of a barrel 200 according to a second preferred embodiment of the present invention.
  • the barrel 200 comprises a cylindrical housing 201 and a cover 202.
  • the barrel 200 further comprises a tension spring 203, which is attached to the spring core 204 with the inner coil.
  • a spring core pin 205 which is rotated with the spring core 204, is additionally attached to the spring core 204.
  • the barrel 200 also includes an internally toothed Maltese cross wheel 206.
  • FIG 17 shows a top view of the barrel 200, in which the housing 201 has been hidden. As from the Figure 16 As can be seen, the barrel 200 also has a drag spring 108, which serves as a slip clutch to prevent damage to the tension spring 203.
  • FIG 17 shows a top view of the barrel 200, in which the housing 201 has been hidden.
  • the Maltese cross gear 206 comprises a toothing with a plurality of teeth 206b, which are separated by the tooth gaps 106c.
  • the head 206d of the teeth 206b has a shape that enables the spring core 204 to rotate.
  • the spring core pin 205 engages in the Maltese cross wheel 206, specifically in the tooth gaps 206c of the Maltese cross wheel 206, and moves the latter one position further per turn.
  • the Maltese cross wheel is indexed by one rotational position per turn of the spring core pin 205.
  • the Geneva wheel 206 is driven in rotation in the same direction.
  • the Geneva wheel 206 and the spring pin 205 rotate in reverse directions.
  • the Maltese cross wheel 206 has two specially designed tooth gaps, namely a drain tooth gap 206e and an elevator tooth gap 206f.
  • the run-off tooth gap 206e is designed in such a way that further rotation of the Geneva wheel 206 in its run-off direction is blocked by the spring core pin 205 when the innerspring pin 205 was received in the tooth gap 206e, as in FIG Figure 19 shown. This allows the number of revolutions of the barrel to be limited. As a result, the area in which the tension spring 203 is needed and thus the effective spring force of the tension spring 203 on the following gear train can be limited.
  • Figure 19 accordingly represents the situation during the full process, that is, when the further rotation of the Geneva wheel 206 in the process direction is blocked by the spring core pin 205.
  • the spring core 204 and with it the spring core pin 205 rotates during the winding up in the direction A.
  • the spring core pin 205 engages after half a turn in the next tooth gap 206c and thus drives the Geneva wheel 206 in rotation in direction A.
  • the Geneva wheel 206 is per turn the spring core pin 205 further indexed by one rotational position. So that the Geneva wheel 206 assumes a certain rotational position after each movement or indexing, it has an indexing spring 206h which engages in the notches 208a of an indexing plate 208.
  • the Geneva wheel 206 By turning the spring core pin 205 in direction A, the position of the Figure 20 is reached, the further rotation of the spring core pin 205 in direction A drives the Geneva wheel 206 in such a way that the next turn the spring pin 105 engages in the elevator tooth gap 206f and thereby displaces an elastic elevator tongue 206g radially outward, as in FIG Figure 22 shown. Thanks to the elastic winding tongue 206g, the Geneva wheel 206 remains in the same position even when the spring core pin 205 is rotated further in direction A. In other words, the spring core pin can continue to rotate indefinitely in this direction without the Geneva wheel being indexed. This means that the number of revolutions in the elevator is not limited by the Geneva wheel 206.
  • a force limitation can advantageously be achieved by the drag spring 208. Thanks to the shape of the winding tongue head 206i, the Maltese cross wheel can be moved from its position to Figures 20 to 22 are driven again by means of the spring core pin 205 in the drainage direction.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
EP19202666.4A 2019-10-11 2019-10-11 Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie Active EP3805868B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19202666.4A EP3805868B1 (fr) 2019-10-11 2019-10-11 Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19202666.4A EP3805868B1 (fr) 2019-10-11 2019-10-11 Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie

Publications (2)

Publication Number Publication Date
EP3805868A1 true EP3805868A1 (fr) 2021-04-14
EP3805868B1 EP3805868B1 (fr) 2023-12-06

Family

ID=68280807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19202666.4A Active EP3805868B1 (fr) 2019-10-11 2019-10-11 Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie

Country Status (1)

Country Link
EP (1) EP3805868B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH10576A (fr) * 1895-07-20 1896-01-15 Jules Golay Arrêtage perfectionné pour barillets
US3294198A (en) * 1964-01-06 1966-12-27 Lab Pristroje Spring-operated constant torque transmission for electric clocks
EP3070535A1 (fr) 2015-03-18 2016-09-21 Glashütter Uhrenbetrieb GmbH Barillet ayant un couple de rotation essentiellement constant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3496544B2 (ja) * 1998-04-17 2004-02-16 セイコーエプソン株式会社 ゼンマイ装置および時計

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH10576A (fr) * 1895-07-20 1896-01-15 Jules Golay Arrêtage perfectionné pour barillets
US3294198A (en) * 1964-01-06 1966-12-27 Lab Pristroje Spring-operated constant torque transmission for electric clocks
EP3070535A1 (fr) 2015-03-18 2016-09-21 Glashütter Uhrenbetrieb GmbH Barillet ayant un couple de rotation essentiellement constant

Also Published As

Publication number Publication date
EP3805868B1 (fr) 2023-12-06

Similar Documents

Publication Publication Date Title
DE102006052167B3 (de) Vorrichtung zum Aufrollen eines Sicherheitsgurtes
EP3070535B1 (fr) Barillet ayant un couple de rotation essentiellement constant
DE1815728C3 (de) Magnetantrieb mit einem Hemmrad
EP2224294A1 (fr) Mécanisme de réglage de l'aiguille des minutes d'une montre avec remise à zéro automatique de l'aiguille des secondes
DE3206946A1 (de) Schaltgetriebe fuer geraete der zeitmesstechnik
EP3805868B1 (fr) Barillet avec un nombre illimité de tours de remontage, mouvement d'horlogerie ainsi qu'appareil d'horlogerie
DE2136528C3 (de) Uhr mit einer Einstell- und Aufzieheinrichtung
DE2007222A1 (de) Uhr mit einem zusätzlichen Stundenzeiger
CH703519A2 (de) Aufzug-Räderwerk, mit dem Aufzug-Räderwerk ausgestattetes Uhrwerk und mit dem Uhrwerk ausgestattete Uhr.
DE1863583U (de) Uhr mit datumscheibe.
DE868576C (de) Uhrwerk mit einer ein arretierbares Aufzuggewicht aufweisenden automatischen Aufzugvorrichtung
DE1698624B1 (de) Zeigerwerksanordnung fuer elektrische Uhren
DE2453124C3 (de) Automatische Aufziehvorrichtung für Uhrwerke
DE2141015C3 (de) Uhrwerk für Kalenderuhr
DE2709824B2 (de) Steuermechanismus für mechanisches Uhrwerk
DE2719062C3 (de) Kalenderuhrwerk, das ein Datumsanzeigeorgan aufweist
CH566867A5 (fr)
DE2305950C3 (de) Zähleinrichtung
DE2907258C2 (de) Momentanwirkendes Kalenderwerk für Uhren
DE2421434C3 (de) Stellmechanismus für den Stundenzeiger und einen HilfsStundenzeiger einer Uhr
DE2158728C (de) Einrichtung zum sprungweisen Weiter schalten von Kalenderinformationen in Uhren
DE2159330C3 (de) Korrekturmechanismus fur eine Uhr mit Datumsanzeige
DE2802059A1 (de) Gesperre fuer uhrwerk
DE1673717B2 (de) Zugfeder fuer eine automatisch aufgezogene uhr
DE1523778B2 (de) Kalenderuhr

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211014

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230705

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019010063

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240307

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20231206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231206

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240307

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231206

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231206