EP4155834A1 - Gesichertes steuerorgan für uhr - Google Patents

Gesichertes steuerorgan für uhr Download PDF

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Publication number
EP4155834A1
EP4155834A1 EP21199314.2A EP21199314A EP4155834A1 EP 4155834 A1 EP4155834 A1 EP 4155834A1 EP 21199314 A EP21199314 A EP 21199314A EP 4155834 A1 EP4155834 A1 EP 4155834A1
Authority
EP
European Patent Office
Prior art keywords
transmission member
tube
crown
timepiece
control member
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
EP21199314.2A
Other languages
English (en)
French (fr)
Inventor
Huy Van Tran
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.)
Ball Watch Co SA
Original Assignee
Ball Watch Co SA
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 Ball Watch Co SA filed Critical Ball Watch Co SA
Priority to EP21199314.2A priority Critical patent/EP4155834A1/de
Publication of EP4155834A1 publication Critical patent/EP4155834A1/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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/041—Construction of crowns for rotating movement; connection with the winding stem; winding stems
    • 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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems

Definitions

  • the invention also relates to a timepiece case as well as a timepiece comprising such a control member, preferably a diver's watch.
  • control member comprising a lockable crown, the general principles of construction and operation of which are well known in the field of waterproof watches, in particular diving watches.
  • this control member comprises a tube secured to the caseband of the watch and through which is arranged a transmission member, with the interposition of an annular seal.
  • the transmission member has the shape of a barrel integral with the crown and whose end located in the case comprises a coupling member capable of cooperating with a rod arranged in the case of the watch, to move it axially and make it rotate.
  • the tube has a thread, on the outside of the middle part, with which a thread provided inside the crown can cooperate to lock the latter, by screwing, when it is not in use.
  • the bottom of the crown houses an additional seal arranged so as to be compressed when the crown is screwed onto the tube.
  • a spring is interposed between the rod arranged in the watch case and the crown, so as to act on the latter and tend to move it away from the caseband.
  • the spring acts on it to push it back towards a first actuating position.
  • the barrel secured to the crown also moves axially, with reference to the rod arranged in the box, and its coupling member is positioned in engagement with a suitable section of the rod to allow it to be driven in rotation, by rotation of the crown. It is possible to provide at least one additional pulled out position to actuate at least one additional horological function by rotation of the crown, the barrel then driving the stem in translation when the crown moves from its unlocked position to a pulled out position.
  • the seal placed between the tube and the barrel must have a large diameter due to the diameter of the barrel.
  • this seal must also have a large section to limit its deformation during manipulation of the crown.
  • the joint is in contact with the barrel by its internal wall and with the tube by its external wall, but only the barrel rotates when the crown is unscrewed, giving rise to a first type of constraint undergone by the joint.
  • the crown Once the crown is released, it moves away from the middle, taking the barrel with it.
  • the axial displacement of the barrel while the tube remains fixed gives rise to a second type of stress on the joint.
  • the first type of constraint is still applied at the seal when the crown is rotated by the user to actuate the corresponding watch function, but this time this constraint can present two opposite directions.
  • the joint must therefore be strong enough to exhibit minimal deformation each time it undergoes one of these stresses.
  • a main object of the present invention is to propose an alternative construction of a secure control member for a timepiece. having great ease of handling without its ability to be neutralized having a significant impact on its aesthetic appearance and its size, and does not compromise the tightness of the box with which it is associated.
  • the transmission member prefferably, provision can be made for the transmission member to have the shape of a rod in which at least one annular groove is formed defining a housing for the annular seal.
  • the transmission member can also be made for the transmission member to include at least one second annular groove defining a housing for a second annular seal reinforcing the seal between the transmission member and the tube, preferably at least second and third annular grooves each of which defines a housing for an additional annular seal reinforcing the seal between the transmission member and the tube.
  • the transmission member In general, provision can be made for the transmission member to carry an abutment surface arranged to cooperate with a rest surface integral with the crown to define the inactive position of the latter.
  • this resting surface is defined on an annular ring arranged inside the crown, preferably being secured to the latter by driving in, gluing, welding or brazing.
  • the first coupling member prefferably be provided on this annular ring.
  • the second coupling member can comprise a ring having a polygonal central hole cooperating with a connecting section of the transmission member, of complementary shape, in such a way that any rotation of the ring causes a rotation corresponding to the transmission component.
  • each of the first and second coupling members can have toothing or knurling capable of cooperating with the other coupling member, the latter having complementary toothing or knurling.
  • the transmission member to carry, at its end intended to be positioned inside the case, a third coupling member intended to cooperate with a watch mechanism, the third coupling member coupling preferably comprising an X axis toothing.
  • the elastic return member prefferably be a helical spring, one end of which is arranged to bear against the tube and the second end is arranged to bear against the crown.
  • the invention also relates to a timepiece case and a timepiece comprising a control member having all or some of the characteristics which have just been described.
  • FIG 1 shows an exploded and simplified perspective view of a control member 1 for a diver's watch according to a first preferred embodiment of the invention.
  • THE figures 2a and 2b represent the same view in simplified longitudinal section of the control member 1, in two different configurations, and allow a better understanding of how the components illustrated in the figure 1 cooperate with each other.
  • the control member 1 comprises a tube 2 intended to be made integral with a box (not shown) of a timepiece, in a conventional manner.
  • the tube 2 can be screwed, driven in or welded into the middle part of a timepiece, with the possible interposition of a seal.
  • the tube 2 has a generally cylindrical shape, with axis X, and has three successive sections, a first section 4 of reduced diameter, intended to be housed in the caseband of the timepiece, a second section 6 of larger diameter than that of the first section 4, intended to be positioned against the outer wall of the caseband, and a third section 8 of intermediate diameter in which is provided an annular groove intended to house an annular seal 10.
  • the tube 2 has a central hole 12 defining a passage for a transmission member 14 longitudinal.
  • the transmission member 14 From its first end 16 intended to be housed in the case of the timepiece, towards its second end 18 intended to be positioned outside the case, the transmission member 14 has a first cylindrical section 20, a second central section 22 provided with four annular grooves in each of which is housed an annular gasket sealing 24, a third cylindrical section 26, a fourth section 28, short and having a polygonal envelope, and a fifth cylindrical section 30, of slightly larger diameter than that of the fourth section 28.
  • the first end 16 also has a polygonal envelope and has a central threaded hole 32.
  • the second end 18 has a diameter greater than that of the fifth section 30 so as to define a shoulder.
  • the transmission member 14 is engaged through the tube 2 with the interposition, on the side intended to be positioned outside the box, of a first annular ring 34, then of an additional ring 36 intended to rest on the ring seal 10.
  • the annular ring 34 has slots arranged in the axial direction of the control member 1 and defining a first coupling member 38 capable of cooperating with a second coupling member 40 having the form of complementary teeth provided on the ring 36
  • the latter is intended to be positioned opposite the fourth section 28 of the transmission member 14 and has a central hole 42 of a shape complementary to that of the fourth section 28, such that the transmission member 14 and the ring 36 are integral in rotation.
  • the annular ring 34 also has an internal shoulder 44 intended to cooperate with the second end 18 of the transmission member 14, in such a way that the latter can limit the amplitude of the displacements of the annular ring 34 in the direction of a distance from the middle.
  • a third coupling member 46 is engaged on the first end 16 of the transmission member 14, the latter having here the form of a return whose central hole 48 is polygonal, in such a way that the transmission member 14 can drive the third coupling member 46 in rotation when it is itself driven in rotation.
  • a screw 50 is screwed into the central threaded hole 32 of the transmission member 14 to assemble the third coupling member 46 to the transmission member 14, and ensure the retention of the latter inside the tube 2.
  • the control member 1 further comprises a crown 52 whose peripheral wall is advantageously conical and knurled (preferably optional) to facilitate its handling.
  • Crown 52 is hollow to define a housing 54 for annular ring 34, which is secured to crown 52 preferably by driving in, gluing, welding or brazing.
  • An elastic return member 56 here having the form of a helical spring, is also arranged in the crown 52 with one end positioned bearing against the second section 6 of the tube 2, so as to exert a force on the crown 52 tending to move it away from the tube 2, therefore from the case of the timepiece, as illustrated in the figure 2a .
  • the internal shoulder 44 of the annular ring 34 defines a rest surface cooperating with the second end 18 of the transmission member 14 to prevent the annular ring 34, and therefore the crown 52, from moving further away from the tube 2 .
  • THE figures 3a and 3b represent the same simplified partial perspective view of the control member 1 in the two respective configurations of the figures 2a and 2b .
  • the crown 52 Before being able to be pressed in the direction of the case of the timepiece, the crown 52 must possibly be turned to position the crenellations of the annular ring 34 facing the spaces separating the teeth of the ring 36. This situation is illustrated in the picture 3a . Once the crown 52 is oriented in an appropriate manner, it can be pressed against the action exerted by the elastic return member 56, to cause the slots to penetrate into the toothing of the ring 36, as illustrated in the figure 3b .
  • any rotation of the crown 52, in one direction or the other causes a rotation of the ring 36, and therefore of the transmission member 14 via the polygonal connection which connects these two components together.
  • the third coupling member 46 is then also driven in the same direction as the crown 52, and it can thus actuate a watch mechanism with which it has a suitable kinematic connection.
  • the third coupling member 46 having the form of a transmission, it can be arranged directly in engagement with a toothed crown (not shown) of the watch movement, for example.
  • a toothed crown (not shown) of the watch movement
  • provision can for example be made for such a toothed crown to be secured to a flange arranged at the periphery of the dial of the timepiece to indicate the duration of a dive.
  • the orientation of the flange can be adjusted before the start of a dive to position an indication corresponding to the start of the dive opposite a current minute display hand, in a known manner.
  • the implementation of the present invention is not limited to the use of a return for the third coupling member 46, and those skilled in the art will not encounter any particular difficulty in implementing any other form of the third coupling member adapted to their own needs without departing from the scope of the invention as defined by the appended claims, for example a cylindrical part having a square or hex-shaped axial hole.
  • first and second coupling members shaped in such a way that only the rotations of the crown 52 in a predefined direction of rotation are transmitted to the third coupling member 46, the rotations of the crown 52 in the opposite direction then being without effect.
  • control member 1 more particularly the shape and the reduced diameter of its transmission member 14, allows the use of annular seals having not only a small diameter, but also a small section. Such an advantage makes it possible to limit the overall size of the control member 1 and/or to increase the number of annular seals used as illustrated here, in order to reinforce the sealing of the corresponding timepiece case as much as possible. .
  • FIG 4 shows an exploded and simplified perspective view of a control member 100 for a diver's watch according to a second preferred embodiment of the invention.
  • THE figures 5a and 5b represent the same view in simplified longitudinal section of the control device 100, in two different configurations, and make it possible to better understand how the components illustrated on the figure 4 cooperate with each other.
  • the control member 100 includes a tube 102 similar to the tube 2 of the first embodiment, which can also be driven or welded into a timepiece caseband, with the interposition of a metal gasket.
  • the tube 102 has a generally cylindrical shape, with an X axis, and has three successive sections, a first section 104 of reduced diameter intended to be housed in the middle part of the timepiece, a second section 106 of diameter larger than that of the first section 104, intended to be positioned against the outer wall of the caseband, and a third section 108 of intermediate diameter in which is formed an annular groove intended to house an annular seal 110.
  • the tube 102 has a central hole 112 defining a passage for a transmission member 114 longitudinal.
  • the transmission member 114 From its first end 116 intended to be housed in the case of the timepiece, towards its second end 118 intended to be positioned outside the case, the transmission member 114 has a first section 122 provided with four annular grooves in each of which is housed an annular seal 124, a second cylindrical section 126, a third section 128, short, of diameter slightly smaller than that of the second section 126 and having a polygonal envelope, and a fourth cylindrical section 130, of slightly smaller diameter than the third section 128.
  • the second end 118 has a central threaded hole 132.
  • the first end 116 has a diameter greater than that of the tube 102 so as to define a stop.
  • the transmission member 114 is engaged through the tube 102 and is itself engaged, on the side intended to be positioned outside the box, through a first annular ring 134, and a ring 136 additional intended to rest on the annular seal 110.
  • the annular ring 134 has slots arranged in the axial direction of the control member 100 and defining a first coupling member 138 capable of cooperating with a second coupling member 140 having the form of complementary teeth provided on the ring 136
  • the latter is intended to be positioned opposite the third section 128 of the transmission member 114 and has a central hole 142 of a shape complementary to that of the third section 128, such that the transmission member 114 and the ring 136 are integral in rotation.
  • a third coupling member is made directly, in one piece, with the first end 116 of the transmission member 114, the latter having the shape of a transmission similar to that of the first embodiment.
  • a screw 150 is screwed into the central threaded hole 132 of the transmission member 114 to ensure the retention of the transmission member 114 inside the tube 2.
  • a sleeve 151 is interposed between the ring 136 and the head of the screw 150.
  • FIG. 5a A review of figures 5a and 5b shows that the tightening of the screw 150 exerts a traction on the transmission member 114, tending to move it towards the outside of the box, and ensures a slight compression of the annular joint 110, by means of the sleeve 151 and the ring 136.
  • This construction ensures at the same time that the transmission member 114 has a fixed axial position with reference to the tube 102, its first end 116 being arranged directly in abutment against the tube 102.
  • the control member 100 further comprises a crown 152 whose peripheral wall is advantageously conical (preferably optional) to facilitate its handling.
  • Crown 152 is hollow to define a housing 154 for annular ring 134, which is secured to crown 152 preferably by driving in, gluing, welding or brazing.
  • crown 152 has a central hole 155 of a shape complementary to that of the head of screw 150, such that the latter is capable of being fully housed in crown 152.
  • An elastic return member 156 here having the form of a helical spring, is also arranged in the crown 152 with one end positioned bearing against the second section 106 of the tube 102, so as to exert a force on the crown 152 tending to move it away from the tube 102, therefore from the case of the timepiece, as illustrated in the figure 5a .
  • the head of screw 150 is advantageously located flush with the surface of crown 152.
  • the central hole of the annular ring 134 has a slightly smaller diameter than that of the central hole 155 of the crown 152, such that the annular ring 134 defines a stop cooperating with the head of the screw 150 to limit the amplitude the translation of the crown 152 when it moves away from the tube 102, under the effect of the action of the elastic return member 156.
  • the sleeve 151 has a diameter substantially smaller than that of the central hole of the annular ring 134, making it possible to ensure longitudinal guidance of the latter during the movements of the crown 152 in translation.
  • control member 100 From the point of view of the operation of the control member 100, it is similar to that of the control member 1 according to the first embodiment and it will therefore not be described in detail.
  • the only difference visible to the user lies in the fact that the head of the screw 150, fixed with reference to the tube 102, is partially situated outside the crown 152 when the latter is pressed to pass into its actuating position.
  • control member 100 according to the second preferred embodiment has the same advantages as that according to the first embodiment, as already explained above.
  • the implementation of the present invention is not limited to certain characteristics specifically described and/or illustrated, in particular the shape of the crown, of the three coupling members or of the elastic return member, or even the number of seals implemented in the two preferred embodiments which have been illustrated and described. Indeed, the person skilled in the art will not encounter any particular difficulty in adapting the present teaching to the implementation of a control member in accordance with the present invention, that is to say in which the crown is intended to be maintained in a position remote from the case of the corresponding timepiece by default, this remote position being its inactive position, and in which the seals arranged between the transmission member and the tube intended to be secured to the middle part are not subjected to dynamic stress when the crown is moved between its inactive position and its actuation position.
EP21199314.2A 2021-09-28 2021-09-28 Gesichertes steuerorgan für uhr Pending EP4155834A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21199314.2A EP4155834A1 (de) 2021-09-28 2021-09-28 Gesichertes steuerorgan für uhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21199314.2A EP4155834A1 (de) 2021-09-28 2021-09-28 Gesichertes steuerorgan für uhr

Publications (1)

Publication Number Publication Date
EP4155834A1 true EP4155834A1 (de) 2023-03-29

Family

ID=77998820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21199314.2A Pending EP4155834A1 (de) 2021-09-28 2021-09-28 Gesichertes steuerorgan für uhr

Country Status (1)

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EP (1) EP4155834A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977178A (en) * 1974-08-20 1976-08-31 Boninchi S.A. Watch winding crown assembly
FR2345753A1 (fr) * 1976-03-23 1977-10-21 Boninchi Sa Couronne etanche de remontoir se vissant sur le tube pendant
EP0556155B1 (de) 1992-02-12 1995-12-27 Montres Rolex Sa Wasserdichte Steuerungsvorrichtung für Uhren
CH711600B1 (fr) * 2015-10-01 2019-10-15 Officine Panerai Ag Couronne à poussoir et pièce d'horlogerie comportant une telle couronne.
CH716736A2 (fr) * 2019-10-29 2021-04-30 Ball Watch Company Sa Poussoir verrouillable pour pièce d'horlogerie.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977178A (en) * 1974-08-20 1976-08-31 Boninchi S.A. Watch winding crown assembly
FR2345753A1 (fr) * 1976-03-23 1977-10-21 Boninchi Sa Couronne etanche de remontoir se vissant sur le tube pendant
EP0556155B1 (de) 1992-02-12 1995-12-27 Montres Rolex Sa Wasserdichte Steuerungsvorrichtung für Uhren
CH711600B1 (fr) * 2015-10-01 2019-10-15 Officine Panerai Ag Couronne à poussoir et pièce d'horlogerie comportant une telle couronne.
CH716736A2 (fr) * 2019-10-29 2021-04-30 Ball Watch Company Sa Poussoir verrouillable pour pièce d'horlogerie.

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