EP4075204A1 - Sperrklinke für uhrwerk - Google Patents

Sperrklinke für uhrwerk Download PDF

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Publication number
EP4075204A1
EP4075204A1 EP22171871.1A EP22171871A EP4075204A1 EP 4075204 A1 EP4075204 A1 EP 4075204A1 EP 22171871 A EP22171871 A EP 22171871A EP 4075204 A1 EP4075204 A1 EP 4075204A1
Authority
EP
European Patent Office
Prior art keywords
pawl
ratchet
movement
axis
blank
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.)
Pending
Application number
EP22171871.1A
Other languages
English (en)
French (fr)
Inventor
Julien Christan
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP22171871.1A priority Critical patent/EP4075204A1/de
Publication of EP4075204A1 publication Critical patent/EP4075204A1/de
Pending 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/022—Devices allowing the motion of a rotatable part in only one direction with a ratchet which makes contact with the rotating member by means of teeth
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet
    • 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
    • G04B5/00—Automatic winding up

Definitions

  • the invention relates to a stop pawl for a clock movement.
  • the invention also relates to a timepiece movement comprising at least one such stop pawl.
  • the invention also relates to a timepiece comprising at least one such timepiece movement.
  • the invention relates to the field of watchmaking, and more particularly to the field of stop pawls for controlling the transmission of a movement, a chime, or even another functionality of a piece of watchmaking.
  • a ratchet In the classic architecture of a watch movement, a ratchet comprises a ratchet driven with an angular movement by a barrel.
  • This ratchet in the form of a toothed wheel cooperates with a stop pawl.
  • This pawl is mounted so as to be able to rotate and is provided with a lug on the periphery.
  • This lug cooperates in mesh with the teeth of the ratchet, so as to allow the rotation of said ratchet only in one direction.
  • the mobility of the pawl ensures its rotation according to an angular displacement from an active position, in meshing of said lug with the toothing of said ratchet towards an inactive position, in which the lug is retracted and the ratchet can rotate freely.
  • the return from the inactive position to the active position as well as the maintenance of the pawl in mesh with the ratchet are carried out by means of a return means.
  • the return means returns the pawl to the active position to block the rotary movement ratchet.
  • the return means is in the form of an independent spring, such as a bent wire or an elastic blade, one end of which is fixed in the blank, while the opposite end is attached to the pawl.
  • the return effected by a spring makes the assembly and disassembly of such a clock movement complex. Indeed, during assembly, it is necessary to place the spring by constraining it, in particular by fixing one of its ends on the blank and the opposite end on the pawl, while correctly positioning said pawl in mesh with the teeth of the ratchet already in place.
  • the pawl is mounted on a blank within a housing.
  • This assembly is carried out by means of a pin ensuring the fixing of said pawl on the blank.
  • the axis cooperates internally with a hub formed within the pawl, so as to create a pivot connection, allowing free rotation of the pawl relative to the axis.
  • Such an axis is in the form of a screw, screwed into a complementary thread provided within said housing.
  • This type of assembly therefore makes it possible to dismantle the pawl by unscrewing the axis, before emptying the barrel, said pawl still being able to be constrained by the tension of the spring but especially by the tension of the barrel, which is strongly inadvisable to avoid any deterioration. of a component, or even a sudden expulsion of the pawl.
  • the invention aims to simplify a watch movement, by reducing the number of components and by simplifying the assembly and disassembly operations.
  • the invention envisages a stop pawl integrating the return means necessary for keeping it in mesh with the ratchet, so as to form a snap.
  • said return means may comprise at least one elastic blade with one end secured to said body and an opposite free end.
  • Said body may include, projecting at the periphery and located opposite the opposite end, hooking means abutting said opposite end.
  • Said groove may comprise, facing the offset, a recess for receiving said offset.
  • Said hub can be closed and is in the form of a circular bore.
  • Said hub may be open, said body generally having a U-shape.
  • Said body is made of a metallic material.
  • Said body is made of a nickel-phosphorus alloy.
  • Said body is manufactured by a LIGA-type process.
  • the design of the pawl, in particular the return allows such parts to be separated when they are packaged in bulk, preventing them from snagging in a cluster.
  • the invention also envisages a specific assembly of such a pawl with respect to the blank making it possible to simplify this operation, dispensing with the tensioning of an independent spring.
  • the pawl being free in rotation, the positioning of the ratchet in meshing is considerably simplified.
  • the pawl can be mounted prior to said ratchet, and vice versa for disassembly.
  • said pawl can be slid under the axle before positioning the ratchet. It is only the subsequent positioning of the ratchet that keeps the ratchet in place. Consequently, once the ratchet has been mounted, the pawl can no longer come out, which constitutes a security for the dismantling of the clockwork movement. Indeed, it is then necessary to remove the ratchet first and to empty the barrel beforehand. Consequently, such an assembly makes it possible to further simplify the configuration, by dispensing with an axis in the form of a fixing screw and the precise step of tapping the blank.
  • the axis may comprise a head, ensuring the upper retention of the pawl along said axis.
  • Said bore may be tapped; said axis is in the form of a screw.
  • Said pin may be in the form of a nail driven into said bore.
  • Said housing comprises an inner wall cooperating with an outer face of the elastic blade of said pawl.
  • a pawl integrating the return means and its mounting within the clockwork movement make it possible to control the return action at a range of its angular displacement.
  • the pawl is free to rotate and although the lug is in mesh with the teeth, it does not apply any force to the ratchet, reducing the wear of the teeth over time.
  • the friction between the pawl and the ratchet is therefore drastically reduced.
  • the invention also relates to a timepiece fitted with such a timepiece movement, such as a watch.
  • the present invention relates to the field of watchmaking, and more particularly the field of pawls 1 for controlling the transmission of a clockwork movement 2, a chime, or even another feature of a timepiece.
  • the invention relates to a stop pawl 1, hereinafter referred to as a "pawl”, for a clockwork movement 2.
  • Such a pawl 1 comprises a body 3.
  • This body 3 forms the entire part of the pawl 1.
  • the body 3 of the pawl 1 therefore forms a single timepiece.
  • Body 3 generally has a flattened shape. In revolution around a center of rotation, the body 3 comprises a polygonal periphery with preferentially rounded peripheral edges. The peripheral edges extend orthogonally or essentially orthogonally with respect to the upper and lower faces provided parallel to each other.
  • the body 3 of said pawl 1 is provided with at least several elements. These elements are therefore constituted by one or more parts of said body 3.
  • the body 3 comprises on the periphery, a lug 4.
  • This lug 4 extends projectingly with respect to the periphery, namely that the lug 4 protrudes outwards.
  • the lug 4 extending radially or essentially radially, its median axis passing through the center of rotation of the body 3.
  • the lug 4 serves as a latch with the toothing 50 of a ratchet 5. Therefore, the lug 4 is shaped and dimensioned complementary to said toothing 50, so as to cooperate in at least partial meshing with the latter, as in particular visible on the figures 5 and 6 .
  • the body 3 comprises a hub 6.
  • This hub 6 is intended to cooperate freely in rotation with a fixed axis 7.
  • the hub 6 is centered or essentially centered on the center of rotation of the body 3.
  • the hub 6 is made in the form of a through hole from one towards the other of the upper and lower faces of said body 3.
  • said hub 6 is closed and is in the form of a circular bore.
  • the body 3 then globally presents a pierced disc shape, like a washer.
  • a round hub 6 is particularly visible on the figures 1 and 3 .
  • said hub 6 is open, said body generally having a U-shape.
  • Body 3 then generally has a horseshoe shape.
  • the opening of the hub 6 is dimensioned to allow the passage of the axis 7, to the nearest clearance in order to authorize the rotation of one relative to the other, once said axis 7 is correctly positioned in the center of said hub. 6.
  • the hub 6 has an internal wall orthogonal to said upper and lower faces.
  • This internal wall has a circular portion, corresponding to the periphery of a circle centered on the axis of rotation of said body 3.
  • Such an open hub 6 is particularly visible on the figures 2 and 4 .
  • axis 7 is an added part, forming part of the clock movement 2.
  • the pin 7 secures and maintains the body 3 relative to a support, such as a blank 8 which can preferably be a barrel bridge.
  • the inner face of hub 6 then comes into contact with the outer face of axle 7, forming a pivot connection.
  • Such contact can be direct and provided sliding in rotation, or indirect via a rotating ring fitted to said axis 7.
  • the rotation of the hub 6 takes place according to an angular movement between an active position in meshing of said lug 4 with the toothing 50 of said ratchet 5 and an inactive position, via intermediate positions.
  • the mechanical assembly of the lug 4 with the toothing 50 blocks the rotary movement of the ratchet 5, while in the inactive position, the lug 4 is retracted, leaving free the rotary movement of the ratchet 5 .
  • the lug 4 rotates the pawl 1 from the active position according to a first angular portion of travel, maintaining at least partial meshing with the toothing 50, until reach an inactive position, in which the lug 4 is no longer in contact with the toothing 50, then releasing the ratchet 5.
  • the return of the pawl 1 into mesh with the ratchet 5 is effected by a suitable movement, according to a deflection reverse, so as to allow only the rotary movement of the ratchet 5 according to one or more of the teeth of its toothing 50.
  • said stop pawl 1 comprises means 8 for returning said pawl 1 during its angular travel, from the inactive position to the active position.
  • said return means 8 and said body 3 are in one piece. It is therefore the pawl 1 which integrates this return means 8, freeing itself from an external and independent part. The reminder means 8 is therefore integrated.
  • said return means 8 comprises at least one blade 90 with one end 91 integral with said body 3 and one end 92 opposite free.
  • a blade 90 extends substantially along the periphery of the body 3.
  • the blade 90 extends equidistant or substantially equidistant from the periphery of said body 3, or else by widening from the end 91 towards the end 92 opposite.
  • the blade 90 therefore forms an extension of the body 3 from its end 91.
  • the space between the inner face of said blade 90 and the rest of the body 3 forms a groove 10. This groove 10 is closed at the level of the end 91 of junction of blade 90 with said body 3.
  • Such a blade 90 is provided elastic, ie it has a reversible deformation around a position of inertia. In short, the blade 90 returns to its original shape and position if it is constrained. This resilience of the blade 90 confers elasticity on the return means 9 and its spring effect.
  • the blade 90 has a rounded or arcuate shape. This curved shape improves the flexibility and the elastic character of said blade 90. As such, the elastic character of said blade 90 essentially conferred by the material constituting the body 3 of the pawl 1, of which the blade 90 forms an integral part.
  • said body is made of a metallic material.
  • said pawl body 1 is made of a nickel-phosphorus (NI-P) alloy.
  • the pawl 1 can be obtained by any type of process.
  • the body is manufactured by a LIGA-type process (for “Röntgenlithographie, Galvanoformung, Abformung”, namely “X-ray lithography, electroforming, impression taking”, this denomination taking up the major successive stages of such a process ).
  • the cantilever between the junction end 91 with the body 3 and the opposite end 92, as well as the material constituting the body 3 and said blade 90, ensure an elastic return of the blade 90 towards its inertia position, when said blade 90 is compressed and pushed towards the body 3, but also when the blade 90 is optionally pulled externally.
  • the blade 90 undergoes a bending stress essentially along a first portion located from its end 91 of junction with the body 3.
  • the opposite end 92 moves in turn according to an arc from the position of inertia by approaching said body 3. Said position of inertia is notably visible on the figures 1 to 2 .
  • said body 3 comprises projecting at the periphery and located opposite the opposite end 92 of said blade 90, means 11 for hooking abutting said opposite end 92.
  • Such hooking means 11 may be in the form of a step, oriented towards said opposite end 92 and covering it externally.
  • the hooking means 11 makes it possible in particular to prevent a traction of the blade externally with respect to the body 3, ensuring its locking to prevent outward deformation, only allowing flexibility of the blade 90 oriented towards the body 3.
  • Such means 11 for picking is particularly visible on the figures 3 and 4 .
  • the blade 90 can be constrained when it is positioned locking its opposite end 92 by means 11 of hooking. In short, the blade 90 is already partially compressed.
  • said hooking means 11 closes the groove 10, preventing the clustering of several pawls 1 when these parts are packaged in bulk.
  • the groove 10 which extends between an inner face of said blade 90 and said body 3 from the end 91 secured to said body 3 and to the free opposite end 92 of said blade 90.
  • the free opposite end 92 of said blade 90 comprises an offset 12 projecting on the inside face.
  • Such an offset 12 therefore takes the form of a boss.
  • the offset 12 has a thickness at least equal to the width of the groove 10. Therefore, said groove 10 comprises vis-à-vis the offset 12, a notch 13 for receiving said offset 12.
  • Such a notch 13 forms a hollow in the body 3, in the form of a recess made within the wall of the groove 10
  • the notch 13 is dimensioned, in particular in depth, to ensure the introduction of at least the distal part of the offset 12 during of a stress applied to said blade 90.
  • Such an offset 12 and its notch 13 are particularly visible on the figures 1 and 2 .
  • such a design of the pawl 1 equipped with such a notch receiving at least part of the offset allows closing the end of the groove 10, preventing the clustering of several pawls 1 when these parts are packaged in bulk.
  • the body 3 of the pawl 1 incorporating the return means 9 in the form of a blade 90 makes it possible to apply an elastic return force, when a stress is applied along the distal part of said blade 90.
  • a restoring force makes it possible to oppose the rotation of the hub 6 in one direction, when the body 3 is fixed around the axis 7, then recalling the lug 4 in the opposite direction.
  • An example of the forces applied is particularly visible on the figures 6 and 7 , showing a pawl 1 cooperating with a ratchet 5 within a clock movement 2.
  • the invention also relates to such a clockwork movement 2 .
  • Said watch movement 2 comprises a support structure in the form of a blank 8.
  • a blank 8 serves as a support for various timepieces.
  • the blank 8 is intended to be attached to the covering of a timepiece, such as the watch case.
  • the blank 8 can be in the form of a plate. According to a preferred mode, the blank 8 can be the barrel bridge, or even a part secured to the barrel bridge.
  • the clockwork movement 2 also includes a ratchet 5.
  • This ratchet 5 is provided with a toothing 50.
  • the ratchet 5 is mounted on said blank 8 according to a rotary movement. In particular, such a rotary movement is induced by the barrel through a suitable connection.
  • the clockwork movement 2 also comprises a ratchet mechanism with the toothing 50 of said ratchet 5.
  • a ratchet mechanism makes it possible to control the transmission of the rotary movement of said ratchet 5.
  • the ratchet ensures a transformation from, at the input a continuous rotary movement induced by the ratchet 5, towards, at the output, an oscillating alternating movement of the said ratchet 5.
  • said latching mechanism is rotatably mounted inside a housing 14 made within said blank 8.
  • a housing 14 is sized to allow the latching mechanism to be introduced therein and the hold there in order to cooperate with the toothing of the ratchet 5.
  • the clockwork movement 2 comprises an axis 7 of free rotation of said ratchet mechanism within the housing 14 of said blank 8.
  • the axis 7 is then dimensioned complementary to the hub 6 of the pawl 1.
  • the axis 7 cooperates in fixing with a bore 15 made within said housing 14.
  • said latching mechanism comprises a stop pawl 1 as previously described.
  • the ratchet mechanism may include other timepieces, but preferably it only includes pawl 1.
  • the pawl 1 is then positioned in the housing 14, directing the lug 4 towards the teeth 50 of the ratchet 5, while the blade 90 is located on the side opposite to said teeth 50.
  • the housing 14 is open on the side intended for the cooperation of the pawl 1 with the ratchet 5. Such positioning is particularly visible on the figures 5 to 8 .
  • clockwork movement 2 allows the compression of the blade 90 of the pawl 1, during its rotation induced by the rotary movement of said ratchet 5.
  • This compression can be carried out by any type of means, in particular by a stop .
  • said housing 14 comprises an internal wall 140 cooperating with an outer face of the blade 90 of said pawl 1.
  • the housing 14 is recessed with a flat upper face 141 and hollowed out in the thickness of the blank 8. Therefore, the inner wall 140 extends orthogonally or substantially orthogonally from said upper wall 141 to the surface 80 of the blank 8.
  • the internal wall 140 can be continuous. In short, the internal wall 140 extends without intermittence or without opening from one end of the housing 14 to the other. The internal wall 140 then ensures the compression of the blade 90 at its free end 92 during of the rotation of the pawl 1. Such a configuration is particularly visible on the figures 5 to 7 .
  • said internal wall 140 of said housing 14 is discontinuous along a part of its length located opposite said blade 90.
  • housing 14 has an opening passing through its wall 140 internal, on the side of the blade 90 of the pawl 1.
  • This discontinuity of the internal wall 140 makes it possible to considerably lighten the blank 8.
  • the discontinuity also makes it possible to control the movement of the pawl 1, in particular by dimensioning the length of the part lower part of the internal wall 140, the upper angle of which serves as a stop for the compression of the blade 90 during the rotation of the pawl 1.
  • Such a configuration is particularly visible on the figure 8 .
  • the axis 7 makes it possible to position and maintain the pawl 1 in the housing 14, allowing its free rotation. To do this, the axis 7 cooperates in the lower part with the bore 15. In the upper part, the axis 7 comprises a head 70, ensuring the upper retention of the pawl 1 along the said axis 7.
  • axle 7 has an outer diameter equivalent or substantially equivalent to the inner diameter of said hub 6, except for clearance allowing the insertion of one relative to the other during assembly, and vice versa during disassembly, that the contact between the periphery of the axis 7 and the hub 6 is direct or indirect via a rotating annular ring.
  • said bore 15 is tapped and axis 7 then takes the form of a screw.
  • the tapping of the bore 15 is then carried out in addition to the screw pitch of the axis 7.
  • the assembly of the axis 7 in the form of a screw with the tapped bore 15 ensures a removable fixing, easily authorizing the assembly and the disassembly of pawl 1, by screwing and unscrewing said axis 7, before or after assembly or disassembly of ratchet 5.
  • such a screw assembly is suitable for a pawl 1 provided with a hub 6 closed or open.
  • the assembly can be carried out once the axis 7 has been screwed, by sliding of said pawl 1.
  • This assembly induces placing the pawl 1 first, rotating it to the angular position desired and only then to place the ratchet 5.
  • Such an assembly operation is particularly visible on the figure 9 .
  • pin 7 is in the form of a nail driven into said bore 15. Assembly of pin 7 in the form of a nail driven into bore 15 is final, namely that once the nail has been inserted, it can only be removed with difficulty, without risking damaging the other timepieces.
  • the first assembly consisting in introducing the pin 7 into the bore 15 can be carried out after positioning the pawl 1, the introduction of the pin 7 being carried out by crossing its hub 6.
  • the assembly of the pawl 1 is effected by sliding. This assembly induces placing the pawl 1 first, rotating it to the desired angular position and only then placing the ratchet 5. Such an assembly operation is particularly visible on the figure 9 .
  • a pawl 1 integrating the return means 9 in the form of the blade 90, makes it possible to facilitate the assembly and disassembly of said pawl 1 within the clockwork movement 2. Indeed, this configuration makes it possible to limit the restoring action to a range of the angular movement of the pawl 1.
  • pawl 1 is free to rotate and although lug 4 meshes with ratchet toothing 50, said lug 4 does not apply any force to ratchet 5.
  • This first range corresponds to the angular travel of the pawl 1 from an active position in meshing of the lug 4 with the teeth 50, until the start of the stressing of the blade 90.
  • the extent of said first range is in particular visible on the figures 5 and 6 between two angular positions of said pawl 1.
  • the invention also relates to a timepiece comprising the timepiece movement 2 as previously described.
  • a timepiece can preferably be a watch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Adornments (AREA)
EP22171871.1A 2020-03-31 2020-03-31 Sperrklinke für uhrwerk Pending EP4075204A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22171871.1A EP4075204A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20167288.8A EP3889690A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk
EP22171871.1A EP4075204A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20167288.8A Division EP3889690A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk

Publications (1)

Publication Number Publication Date
EP4075204A1 true EP4075204A1 (de) 2022-10-19

Family

ID=70110195

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20167288.8A Pending EP3889690A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk
EP22171871.1A Pending EP4075204A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20167288.8A Pending EP3889690A1 (de) 2020-03-31 2020-03-31 Sperrklinke für uhrwerk

Country Status (5)

Country Link
US (2) US11789406B2 (de)
EP (2) EP3889690A1 (de)
JP (2) JP7128925B2 (de)
KR (2) KR102603368B1 (de)
CN (2) CN115327879B (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH41448A (fr) * 1907-10-24 1908-11-02 Georges Favre Jacot & Cie Encliquetage perfectionné pour pièces d'horlogerie
US940117A (en) * 1908-12-03 1909-11-16 Anders Aune Watch.
US971500A (en) * 1910-02-02 1910-09-27 Keystone Watch Case Company Ratchet mechanism for watch-movements.
CH711851B1 (fr) * 2015-12-02 2019-11-29 Sellita Watch Co S A Ressort d'entraînement bidirectionnel pour pièce d'horlogerie.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234137Y2 (de) * 1972-06-09 1977-08-04
CH672973A4 (de) * 1973-05-11 1976-05-14
CH1602875A4 (de) * 1975-01-23 1977-06-15
FR2378302A1 (fr) 1977-01-19 1978-08-18 Schild Sa A Encliquetage pour mouvement de montre
JP4927467B2 (ja) 2006-07-31 2012-05-09 Ｊｆｅスチール株式会社 ＣａＯ系脱硫剤及び溶鉄の脱硫処理方法
JP5390968B2 (ja) 2009-07-10 2014-01-15 矢崎総業株式会社 端子圧着装置
EP2806314A1 (de) 2013-05-24 2014-11-26 The Swatch Group Research and Development Ltd. Stoßdämpfer mit Bajonett
JP6920027B2 (ja) * 2015-03-17 2021-08-18 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 時計用リベット
EP3171229A1 (de) 2015-11-19 2017-05-24 Nivarox-FAR S.A. Uhrwerkskomponente
EP3361324A1 (de) 2017-02-13 2018-08-15 Rolex Sa Steckverschlusssystem für uhr
EP3489761B1 (de) * 2017-11-24 2020-05-06 Blancpain SA Triebfeder eines uhrwerks mit unidirektionalem zahnrad
JP7023124B2 (ja) 2018-01-26 2022-02-21 セイコーインスツル株式会社 ムーブメントおよび時計
EP3557333B1 (de) * 2018-04-16 2020-11-04 Patek Philippe SA Genève Herstellungsverfahren einer zugfeder für eine uhr

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH41448A (fr) * 1907-10-24 1908-11-02 Georges Favre Jacot & Cie Encliquetage perfectionné pour pièces d'horlogerie
US940117A (en) * 1908-12-03 1909-11-16 Anders Aune Watch.
US971500A (en) * 1910-02-02 1910-09-27 Keystone Watch Case Company Ratchet mechanism for watch-movements.
CH711851B1 (fr) * 2015-12-02 2019-11-29 Sellita Watch Co S A Ressort d'entraînement bidirectionnel pour pièce d'horlogerie.

Also Published As

Publication number Publication date
KR102650258B1 (ko) 2024-03-21
US20230375979A1 (en) 2023-11-23
US20210302912A1 (en) 2021-09-30
JP2021162583A (ja) 2021-10-11
JP2022111278A (ja) 2022-07-29
CN115327879A (zh) 2022-11-11
JP7313514B2 (ja) 2023-07-24
CN113467215A (zh) 2021-10-01
JP7128925B2 (ja) 2022-08-31
KR20230057332A (ko) 2023-04-28
CN115327879B (zh) 2024-07-02
KR102603368B1 (ko) 2023-11-16
CN113467215B (zh) 2023-02-21
US11789406B2 (en) 2023-10-17
EP3889690A1 (de) 2021-10-06
KR20210122683A (ko) 2021-10-12

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