EP4560410A1 - Halter für uhreinstellorgan mit einem sperrarm - Google Patents

Halter für uhreinstellorgan mit einem sperrarm Download PDF

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Publication number
EP4560410A1
EP4560410A1 EP23212383.6A EP23212383A EP4560410A1 EP 4560410 A1 EP4560410 A1 EP 4560410A1 EP 23212383 A EP23212383 A EP 23212383A EP 4560410 A1 EP4560410 A1 EP 4560410A1
Authority
EP
European Patent Office
Prior art keywords
stud
balance
arm
holder
piton
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
EP23212383.6A
Other languages
English (en)
French (fr)
Inventor
Fabrice DELEVAUX
Gaël Feusier
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 EP23212383.6A priority Critical patent/EP4560410A1/de
Priority to US18/925,183 priority patent/US20250172910A1/en
Priority to KR1020240147345A priority patent/KR20250079870A/ko
Priority to JP2024194316A priority patent/JP2025086334A/ja
Priority to CN202411631738.8A priority patent/CN120044776A/zh
Priority to CN202422786356.4U priority patent/CN223308552U/zh
Publication of EP4560410A1 publication Critical patent/EP4560410A1/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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/026—Locking the hair spring in the indexing device, e.g. goupille of the raquette
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring
    • 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
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks

Definitions

  • the invention relates to the field of watchmaking, and more particularly to the field of mechanical watchmaking, where the regulation of the driving energy is provided by a regulating organ.
  • the invention relates more specifically to a stud holder for a timepiece regulating organ comprising a stud provided with an anti-blocking arm, as well as a regulating organ comprising such a stud holder, and a timepiece movement comprising such a regulating organ.
  • the energy required to rotate the hands (e.g., the minute and hour hands) is stored in a barrel and then delivered by a balance-spring system, which includes a flywheel called a balance wheel, combined with a spring in the form of a spiral-wound ribbon called a balance spring.
  • a balance-spring system which includes a flywheel called a balance wheel, combined with a spring in the form of a spiral-wound ribbon called a balance spring.
  • the rotation of the balance wheel is maintained - and its oscillations counted - by an escapement mechanism comprising an anchor driven by a low-amplitude oscillating movement, equipped with two pallets which engage the teeth of an escape wheel.
  • the escape wheel is imposed a step-by-step rotational movement whose frequency is determined by the oscillation frequency of the anchor, itself set to the oscillation frequency of the balance spring).
  • the balance spring is fixed to a shaft that rotates with the balance wheel; at one outer end, the balance spring is fixed to a stud mounted on a stud holder that is itself fixed to a fixed bridge (or balance cock).
  • a stud generally includes a notch delimited by two walls. The outer end of the hairspring is held in the notch, for example by means of glue.
  • the balance spring passes from a contraction configuration to an extension configuration, and vice versa, in a plane of operation of the balance spring. So that, if a shock occurs, the balance spring can deform transversely to the plane of operation, and have one or more external turns, which pass under the stud. Thus, the oscillation of the balance wheel is disturbed by this blockage, which causes a disruption of the rate of the regulating organ, or even its complete stop.
  • the aim of the present invention is to overcome all or part of the drawbacks mentioned above by proposing a piton holder which prevents the outer coil(s) of the balance spring from remaining stuck around the stud, particularly in the event of an impact.
  • the invention relates to a stud holder for a regulating organ of a watch movement, the regulating organ comprising an inertial mass, for example a balance, a balance spring comprising a ribbon wound on itself in several turns, and a balance bridge, the stud holder comprising a main body intended to be mounted on the balance bridge, and a stud mounted on the main body in a first direction.
  • the regulating organ comprising an inertial mass, for example a balance, a balance spring comprising a ribbon wound on itself in several turns, and a balance bridge
  • the stud holder comprising a main body intended to be mounted on the balance bridge, and a stud mounted on the main body in a first direction.
  • the stud holder comprises an arm extending from the stud, the arm being directed in a second direction directed under the main body, the second direction forming a non-zero angle with the first direction, so as to pass at least partly under a spiral spring held by a stud, when the stud holder is mounted on the regulating member.
  • the coils cannot pass under the piton and get stuck behind it.
  • the arm holds the external coils of the balance spring when they deform in the direction perpendicular to the plane of the balance spring.
  • the second direction is substantially perpendicular to the first direction.
  • the stud comprises a notch intended to accommodate an external end of the ribbon.
  • the notch comprises an inner wall and an outer wall, the arm extending from the inner wall.
  • the arm is oriented radially towards the axis of the regulating member.
  • the main body comprises a radial member on which the stud is mounted.
  • the arm is elongated in a longitudinal direction.
  • the arm has a substantially flat tongue shape.
  • the arm is intended to extend at least beyond the penultimate turn of the spiral spring towards the center of the spiral spring, when the spiral spring is in the extension configuration, preferably in the contraction configuration.
  • the inner wall is longer than the outer wall.
  • the invention also relates to a timepiece regulating organ comprising an inertial mass, for example a balance wheel, a balance spring comprising a ribbon wound on itself in several turns, and such a stud holder.
  • an inertial mass for example a balance wheel, a balance spring comprising a ribbon wound on itself in several turns, and such a stud holder.
  • the invention also relates to a clockwork movement comprising such a clockwork regulating organ.
  • THE figures 1 to 3 show a schematic representation of a part of an embodiment of a regulating member 10 comprising a stud holder 1 according to the invention.
  • Such a regulating organ 10 is intended to be arranged in a clockwork movement to regulate the operation of said movement.
  • the escapement mechanism is not shown in the figures, nor is the clockwork movement.
  • the regulating member 10 comprises an inertial mass, here an annular balance wheel 23, a balance spring 25 as an elastic return element of the inertial mass configured to make it oscillate, a balance shaft 4, and a balance bridge 22.
  • the components are superimposed from bottom to top in the following order, from bottom to top: the balance wheel 23, the balance spring 25, and the balance bridge 22.
  • the balance shaft 4 passes through the center of the balance wheel and the balance spring 25.
  • the balance shaft 4 is held by two shock-absorbing bearings 28 arranged at both ends of the balance shaft 4.
  • a first bearing, not shown in the figures, is arranged below, and the second bearing 28 is arranged in the balance bridge 22.
  • the balance bridge 22 is provided with a through hole in which the second bearing 28 is held.
  • a plate 13 intended to cooperate with an anchor of the escapement mechanism, is arranged at the base of the balance shaft 4.
  • the hairspring 25 preferably extends substantially in one plane.
  • the hairspring 25 comprises a flexible ribbon 2 wound on itself in several turns, the ribbon 2 having a predefined stiffness.
  • the inner end of the ribbon 2 is made of material or is assembled to a rigid support, generally called a collet, not shown in the figures.
  • the rigid support has, for example, a substantially triangular shape, and is threaded around the balance shaft 4.
  • the regulating member 10 comprises a stud holder 1 provided with a stud 34 suspended from the end of a radial member 33.
  • the stud holder 1 is mechanically linked to the external end 3 of the ribbon 2.
  • the stud holder 1 surrounds the second bearing 28.
  • the stud holder 1 comprises a central ring 38 arranged around the second bearing 28, and which rests on the balance bridge 22.
  • the radial member 33 extends radially relative to the central ring 38.
  • the stud 34 is rigidly connected to the external end 3 of the strip 2.
  • the stud 34 is integral with the external end 3 of the strip 2.
  • the assembly of the stud 34 and the spiral spring 25 is for example carried out by gluing, brazing, welding, by deformation of metallic glass, or by mechanical fixing.
  • the stud 34 is movable relative to the plate bridge 22.
  • the stud holder 1 is movable in rotation around the second bearing 28.
  • the stud holder 1 can for example be moved over an angular range of 10°, or even 20°.
  • the rate of the regulating member 10 can be adjusted.
  • the stud 34 is mounted on the main body 31 in a first direction, preferably substantially perpendicular to the plane of the main body 31, and/or to the operating plane of the spiral spring.
  • the stud holder 1 comprises an arm 5 extending from the stud 34, below the operating plane of the spiral spring.
  • the arm 5 is directed in a second direction directed under the main body 31.
  • the second direction forms a non-zero angle with the first direction, so as to pass at least partly under the spiral spring 25 held by the stud 34.
  • the arm 5 is oriented radially towards the axis of the regulating member, and/or of the spiral spring 25.
  • the arm 5 is arranged at the free end of the stud 34.
  • the second direction is preferably substantially perpendicular to the first direction.
  • the stud 34 comprises a notch 8 intended to accommodate an external end 3 of the ribbon 2.
  • the notch 8 comprises an inner wall 6 and an outer wall 7.
  • the inner wall 6 is longer than the outer wall 7.
  • the arm 5 extends towards the axis of the regulating member, and/or of the spiral spring 25 from the inner wall 6.
  • the arm 5 has a substantially flat tongue shape.
  • the arm 5 is elongated in a longitudinal direction.
  • the arm 5 extends at least beyond the penultimate turn 9 of the hairspring from the outside towards the axis of the hairspring, when the hairspring 25 is in the extension configuration, preferably in the contraction configuration or in the rest contraction.
  • the arm 5 extends at least beyond several of the last turns. This further increases the protection against the risk of the last turns becoming blocked around the stud 34.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
EP23212383.6A 2023-11-27 2023-11-27 Halter für uhreinstellorgan mit einem sperrarm Pending EP4560410A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP23212383.6A EP4560410A1 (de) 2023-11-27 2023-11-27 Halter für uhreinstellorgan mit einem sperrarm
US18/925,183 US20250172910A1 (en) 2023-11-27 2024-10-24 Stud-holder for a horological regulating member comprising a stud fitted with an anti-jamming arm
KR1020240147345A KR20250079870A (ko) 2023-11-27 2024-10-25 항재밍 아암이 끼워 맞춰진 스터드를 포함하는 측시 조절 부재용 스터드-홀더
JP2024194316A JP2025086334A (ja) 2023-11-27 2024-11-06 スタッドホルダー、規制部材、および時計ムーブメント
CN202411631738.8A CN120044776A (zh) 2023-11-27 2024-11-15 包括装有防卡臂的外桩的用于钟表调速机构的外桩保持件
CN202422786356.4U CN223308552U (zh) 2023-11-27 2024-11-15 外桩保持件、用于钟表机芯的调速机构及钟表机芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23212383.6A EP4560410A1 (de) 2023-11-27 2023-11-27 Halter für uhreinstellorgan mit einem sperrarm

Publications (1)

Publication Number Publication Date
EP4560410A1 true EP4560410A1 (de) 2025-05-28

Family

ID=88975839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23212383.6A Pending EP4560410A1 (de) 2023-11-27 2023-11-27 Halter für uhreinstellorgan mit einem sperrarm

Country Status (5)

Country Link
US (1) US20250172910A1 (de)
EP (1) EP4560410A1 (de)
JP (1) JP2025086334A (de)
KR (1) KR20250079870A (de)
CN (2) CN120044776A (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH414468A (fr) * 1963-11-27 1966-01-31 Ebauches Sa Dispositif de fixation de l'extrémité extérieure d'un spiral au bâti d'une pièce d'horlogerie
US20230168628A1 (en) * 2021-11-29 2023-06-01 Seiko Epson Corporation Regulator, Movement, And Watch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4331158Y1 (de) * 1965-11-22 1968-12-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH414468A (fr) * 1963-11-27 1966-01-31 Ebauches Sa Dispositif de fixation de l'extrémité extérieure d'un spiral au bâti d'une pièce d'horlogerie
US20230168628A1 (en) * 2021-11-29 2023-06-01 Seiko Epson Corporation Regulator, Movement, And Watch

Also Published As

Publication number Publication date
US20250172910A1 (en) 2025-05-29
JP2025086334A (ja) 2025-06-06
CN223308552U (zh) 2025-09-05
CN120044776A (zh) 2025-05-27
KR20250079870A (ko) 2025-06-04

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