EP3588199B1 - Timepiece, in particular a pocket watch, equipped with at least one cover - Google Patents

Timepiece, in particular a pocket watch, equipped with at least one cover Download PDF

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Publication number
EP3588199B1
EP3588199B1 EP18180556.5A EP18180556A EP3588199B1 EP 3588199 B1 EP3588199 B1 EP 3588199B1 EP 18180556 A EP18180556 A EP 18180556A EP 3588199 B1 EP3588199 B1 EP 3588199B1
Authority
EP
European Patent Office
Prior art keywords
pendant
ring
cover
timepiece
actuating pin
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.)
Active
Application number
EP18180556.5A
Other languages
German (de)
French (fr)
Other versions
EP3588199A1 (en
Inventor
David Hurni
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.)
Montres Jaquet Droz SA
Original Assignee
Montres Jaquet Droz 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 Montres Jaquet Droz SA filed Critical Montres Jaquet Droz SA
Priority to EP18180556.5A priority Critical patent/EP3588199B1/en
Priority to US16/433,171 priority patent/US11442411B2/en
Priority to JP2019112488A priority patent/JP6826159B2/en
Priority to RU2019119830A priority patent/RU2720649C1/en
Priority to CN201910568306.XA priority patent/CN110658711B/en
Publication of EP3588199A1 publication Critical patent/EP3588199A1/en
Application granted granted Critical
Publication of EP3588199B1 publication Critical patent/EP3588199B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B3/046—Operation by rotation and axial movement with extra function of axial shift of operating element, e.g. crown combined with push button
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G04B37/0016—Cases for pocket watches and wrist watches with folding cover or folding bottom (hinge without spring)
    • 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
    • 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
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1446—Means for suspending pocket-, or other types of watches, e.g. on small chains
    • G04B37/1466—Fixing the case crown onto the case

Definitions

  • the present invention relates to a timepiece, in particular a pocket watch, equipped with at least one cover which hides, for example, a dial above which a set of hands moves.
  • a timepiece of the type indicated above is for example known from the Swiss patent CH 689338 A5 on behalf of Patek . More precisely, the timepiece described in the Patek patent is a pocket watch provided with a cover on each of its faces, these covers being able to both be opened using a controlled mechanism by a stud sliding axially in the crown.
  • the principle of the Patek mechanism for opening two top and bottom covers of a pocket watch is to use an actuating pad which, depending on the angular position occupied by the pendant, causes the opening of the one or the other of these two lids.
  • the pendant In a first position, the pendant is in the high position, blocked angularly, and if the user exerts pressure on the stud, it causes the top cover of the wristwatch to open. From this position, if the user moves the pendant slightly towards the middle, the pendant is angularly unlocked and the user can pivot this pendant in a direction of 180°.
  • the pendant has rotated 180°, the user releases the pendant which moves axially under a return action and returns to the high locked position but 180° from its first blocked position. In this second locking position of the pendant, the user can cause the bottom cover to open by pushing on the actuation stud.
  • the Patek pocket watch includes a cover on each of its faces, a pendant and a winding and time-setting mechanism comprising a crown, a barrel and a cylindrical winding stem.
  • the lid opening mechanism comprises an actuating stud which slides axially in the winding crown and which, via sliding rods guided by the winding mechanism, acts on locks which normally hold the lids in place. closed position.
  • the Patek mechanism avoids the risk of scratching the watch case if you use a knife to open one of the two covers, or of breaking a nail because snapping the cover into place is usually relatively hard.
  • the Patek mechanism presents several disadvantages.
  • One of these drawbacks is that the Patek opening mechanism does not seem very practical.
  • the Patek opening mechanism is permanently in a position in which a simple pressure on the actuation pad causes one of the covers to open. Therefore, the risks of one of the covers opening unexpectedly are high, particularly if the watch is in a pocket of clothing.
  • the present invention aims to overcome the problems mentioned above as well as others by providing a timepiece, in particular a pocket watch, comprising a mechanical device for opening at least one cover which covers a dial above which at least one needle or decoration moves, this mechanical opening device being simple in design and use.
  • the present invention as defined in claim 1, relates to a timepiece, in particular a pocket watch, comprising a box delimited by a middle part, the timepiece also comprising at least one cover covering a device for displaying information as well as a device for controlling the opening of at least one cover, this opening control device comprising a ring pendant and a transmission member of control, the ring pendant being arranged to be pushed rectilinearly a first time in the direction of the middle to a first stop position, then to be pivoted in a first direction to a second stop position, then to be pushed rectilinearly a second time in the direction of the middle in order to cause the cover to open by action on the control transmission member.
  • the timepiece comprises a first and a second cover which respectively cover a first and a second information display device as well as a device for controlling the opening of the first, respectively the second cover, this control device opening comprising a pendant ring as well as a first, respectively a second control transmission member, the pendant ring being arranged to be pushed rectilinearly a first time in the direction of the middle to a first stop position, then to be pivoted in a first direction to a second stop position, then to be pushed rectilinearly a second time in the direction of the middle in order to cause the opening of the first cover by action on the first control transmission member, the pendant ring being arranged so as to be able, from the first stop position, to be pivoted in a second direction to a second stop position, then to be pushed rectilinearly a second time in the direction of the middle part in order to cause the opening of the second cover by action on the second control transmission member.
  • the present invention provides a timepiece, in particular a pocket watch, comprising at least one cover whose opening is controlled by action on a pendant which must first be moved rectilinearly in the direction of the middle of the watch, then pivoted before being moved straight again in the direction of the middle to cause the cover to open.
  • a timepiece in particular a pocket watch
  • the sequence of manipulations that the user must carry out to open one or the other of the two covers is practically the same, which greatly facilitates the use of the timepiece.
  • the user does not need to think to determine which sequence of manipulations he must carry out depending on the lid he wishes to open.
  • the device for controlling the opening of a cover of the timepiece according to the invention does not involve any push button; the risks of involuntary opening of the cover are thus avoided, the reliability of the control device is increased and the cost price is reduced.
  • the present invention proceeds from the general inventive idea which consists of equipping a timepiece, in particular a pocket watch, with a device for controlling the opening of at least one cover covering a display device.
  • This control device cannot be activated unintentionally, so that any risk of the cover opening unexpectedly is eliminated; this control device does not use any push button, so that its operation is much more reliable and its cost price reduced; finally, in the case where the timepiece is equipped with two separate covers, the sequence of operations to be carried out to open one or the other of these two covers is almost identical, so that the use of the timepiece according to the invention is very intuitive.
  • the pocket watch according to the invention comprises (see figures 1 and 2A ) a first cover 2a and a second cover 2b. These first and second covers 2a and 2b are arranged to be able to be opened and closed at the request of the user of the pocket watch 1 (see Figures 2B and 2C ).
  • the first and second covers 2a and 2b are pivotally mounted on a middle part 6 of the pocket watch 1, for example by means of hinges 8. When they open, the first and second covers 2a and 2b reveal in the eyes of the user the information display devices that these first and second covers 2a and 2b normally cover.
  • the first cover 2a can cover (see Figure 3A ) a display device such as a time dial 9a above which move for example an hour hand 9b and a minute hand 9c.
  • the second cover 2b it can cover for example (see Figure 3B ) a decorative pattern 11a.
  • the first and second covers 2a and 2b can both cover a dial providing a time indication, one of these dials indicating for example by means of a set of hands the current time, while the another dial 11b can, using another set of hands 11b, 11c, provide an indication relating to a timed time or a second time zone.
  • the invention will be described in connection with a pocket watch provided with a first and a second cover. It will nevertheless be understood that the invention is in no way limited to this particular embodiment and that the invention applies identically to the case where the pocket watch comprises a single cover. It will also be understood that, although described in connection with a pocket watch, the present invention can be applied to any type of timepiece equipped with at least one cover, in particular a wristwatch.
  • the pocket watch comprises a device allowing its user to control the opening of the cover(s). Subsequently, we will describe as “proximal” the elements of the control device located on the side of the middle of the pocket watch, and “distal” the elements of the control device located on the side of the ring. It will also be understood that the tubes which will be discussed below and, more generally, the control device as a whole are centered on a longitudinal axis of symmetry XX which extends in a radial direction directed towards the center of the box of the pocket watch. Likewise, we will describe as “top” an element located on the side of the ring, and “bottom” an element located on the side of the middle.
  • the pocket watch 1 is equipped with a device 10 for controlling the opening of the first and second covers 2a and 2b.
  • This control device 10 comprises (see Figure 4 ) a first pendant 12 which, for reasons of clarity of the presentation, we will hereafter call “ring pendant” 12.
  • This ring pendant 12 carries a ring 14 which is mounted on the ring pendant 12 in a removable manner, for example by means of two screws 16.
  • the ring pendant 12 is surmounted by a crown 18 which is fixed on the ring pendant 12 in a removable manner and which is useful in particular for winding a watch movement housed in a box 20 of pocket watch 1. This crown 18 will be described in more detail later.
  • the control device 10 also includes a second pendant 22 which, for reasons of clarity of presentation, we will call “middle pendant” 22 hereinafter.
  • This middle part 22 is fixed to the middle part 6 of the case 20 of the pocket watch 1 by any appropriate means, for example by screwing or even by welding.
  • the control device 10 also comprises a first tube 24 which, for reasons of clarity of the presentation, we will hereafter call “ring tube” 24.
  • the control device 10 also comprises a second tube 26 which, for reasons for clarity of presentation, we will hereafter call “middle tube” 26.
  • the middle tube 26 is fixed in the middle part 6 of the case 20 of the pocket watch 1 by any appropriate means such as by screwing.
  • the ring tube 24 is fixed in the middle tube 26 for example by screwing using a thread 28 provided at its distal end.
  • the ring tube 24 is also provided on its outer periphery with a first flange 30 and a second flange 32 which act as stops.
  • first collar 30 which we will subsequently call “ring stop” is arranged so as to press on a first support surface 34 located at the bottom of a first housing 36 (ring pendant housing) provided in the pendant ring 12.
  • second collar 32 which we will subsequently call “middle stop” is arranged so as to come to rest against the distal end 38 of the middle tube 26 when the ring tube 24 is completely screwed into the middle tube 26 (see figures 8 And 9 ).
  • the ring pendant 12 is engaged in sliding freely on the middle tube 26 with the interposition of a return spring 42 threaded onto the middle tube 26 and which is sandwiched between the ring pendant 12 and the middle part 6 of the box 20 of the pocket watch 1.
  • the ring pendant 12 and the middle case pendant 22 are both substantially of the same shape and the same dimensions.
  • the two pendants 12 and 22 are in the form of a block of generally parallelepiped shape whose edges have been beveled for purely aesthetic considerations only. .
  • the small faces 44 of the ring pendant 12 are each pierced with a hole 46 to allow the screwing of the screws 16 necessary for mounting the ring 14 on the ring pendant 12.
  • the ring pendant 12 is provided with a first and a second cylindrical portion, respectively 48 and 50, which are arranged one after the other in the distal/proximal direction, the outer diameter of the first cylindrical portion 48 being greater than the outer diameter of the second cylindrical portion 50, which materializes an annular surface 52 at the junction between these two cylindrical portions 48 and 50.
  • the second cylindrical portion 50 of the ring pendant 12 is provided with a safety pin 54 and a first and a second tenon respectively 56a and 56b (see more particularly the Figures 5A to 5F ).
  • a safety pin 54 and a first and a second tenon respectively 56a and 56b are provided at its base.
  • the safety pin 54 and the two tenons 56a and 56b are arranged substantially on the same circle C (see Figure 5B ).
  • the safety pin 54 is provided at the base of the second cylindrical portion 50 of the ring pendant 12, on the exterior surface of this cylindrical portion 50.
  • the safety pin 54 therefore projects from the exterior surface of the second cylindrical portion 50.
  • the two tenons 56a and 56b they are provided at the foot of the second cylindrical portion 50, in the extension of this second cylindrical portion 50.
  • the two tenons 56a and 56b are arranged at 45° on either side of a diameter D1 which passes through the safety lug 54, and are opposite this safety lug 54.
  • This angular value is given for purely illustrative purposes only, d other values greater than 0° and less than 90° may be considered.
  • the ring pendant 12 which was said above to consist of a parallelepiped block extended towards the middle part 6 of the case 20 of the pocket watch 1 by two stepped cylindrical portions 48 and 50, is pierced with a first hole 60 made in the parallelepiped block (see figures 5E And 8 ).
  • the internal diameter of this first hole 60 is sufficient to allow passage to the first flange 30 (also called ring stop) which abuts against the first bearing surface 34 formed by a local narrowing of the internal diameter of the first hole 60.
  • second hole 62 whose interior diameter is slightly greater than the exterior diameter of the second flange 32 (also called middle stop) to allow the passage of this second flange 32 is, for its part, pierced in the first and second cylindrical portions 48 and 50.
  • the control device 10 also comprises a first and a second control transmission member, for example of the type of a first and a second actuating pin 64a, 64b each provided with a lug 66a, respectively 66b and a holding plate 68 whose roles will be described in detail below.
  • a first and a second control transmission member for example of the type of a first and a second actuating pin 64a, 64b each provided with a lug 66a, respectively 66b and a holding plate 68 whose roles will be described in detail below.
  • the pocket watch 1 according to the invention comprises only one cover, only one actuating pin is necessary.
  • the second housing 40 also called middle housing, passes through the middle housing 22 right through (see Figure 5I ).
  • This second housing 40 is of generally cylindrical shape with a diameter D2 and is centered on the longitudinal axis of symmetry XX .
  • This second housing 40 presents internally (see Figures 6A, 6B and 7A, 7B ) a first and a second rim, respectively 70a and 70b.
  • These edges 70a, 70b in the shape of an arc of a circle, each extend over approximately 90° and are arranged one after the other, with the presence of a clearance 72 between the two.
  • a semi-cylindrical notch 74 which extends along the longitudinal axis of symmetry XX is provided in the interior side wall of the second housing 40, exactly opposite the clearance 72.
  • This semi-cylindrical notch 74 is provided to allow the passage of the safety lug 54 when the ring pendant 12 is introduced into the middle pendant 22.
  • the semi-cylindrical notch 74 opens into a first and a second groove 76a and 76b in the form of arcs of a circle which extend on either side of the notch 74 over an angular sector of approximately 45° and which are each delimited by a milling bottom stop 77a, 77b (see in particular Figures 7A and 7B ).
  • the pocket watch 1 includes only one cover, only one groove will be necessary. It will also be understood from reading the following that depending on whether it is desired to open the first cover 2a or the second cover 2b, execution of the opening maneuver will cause the safety pin 54 to slide either in the first groove 76a or in the second groove 76b.
  • the first and second actuating pins 64a, 64b are introduced into first and second holes, respectively 78a and 78b, drilled axially in a second bearing surface 79 provided in the bottom of the middle housing 40. These first and second pins actuation pins 64a, 64b are held in the holes 78a, 78b thanks to their lugs 66a, 66b which rest on the second bearing surface 79 and which prevent these actuation pins 64a, 64b from escaping from the holes 78a, 78b axially in the direction of the middle part 6.
  • the first and second actuating pins 64, 64b bear on a first, respectively a second locking spring 80a, 80b, which are arranged in the box 20 of the pocket watch 1 and which control the opening of the corresponding cover 2a, 2b.
  • the holes 78a, 78b are machined in the second bearing surface 79 of the middle housing 40 diametrically opposed to each other and are located at approximately 90° on either side of the notch semi-cylindrical 74.
  • the retaining plate 68 is shaped so as to be located above the lugs 66a, 66b of the actuating pins 64a, 64b and to prevent these actuating pins 64a, 64b from escape from the holes 78a, 78b axially in the direction of the ring pendant 12.
  • This retaining plate 68 is fixed in the middle housing 40 by means of at least one screw 82 screwed into a tapped hole 84 machined directly above the semi-circular notch 74, where the first and second grooves 76a, 76b meet.
  • the retaining plate 68 is mounted so that a slight axial play remains between the lugs 66a, 66b and the second bearing surface 79, this play defining the stroke of the actuating pins 64a, 64b which allows them to actuate the locking springs 80a, 80b of the first and second covers 2a, 2b.
  • the assembly of the control device 10 is carried out in the following manner: the middle pendant 22 being fixed on the middle part 6 of the case 20 of the pocket watch 1, the middle tube 26 is engaged in the middle pendant housing 40 and we screws it into the middle part 6. After which, we thread the return spring 42 onto the middle tube 26, we introduce the first and second actuating pins 64a, 64b into the first and second holes 78a, 78b, then we screw the retaining plate 68 in the bottom of the middle housing 40, over the actuating pins 64a, 64b. Then, the ring pendant 12 is engaged in the middle pendant 22. For this to be possible, it is necessary to ensure that the ring pendant 12 is oriented so that the safety pin 54 can penetrate into the semi-cylindrical notch 74.
  • the ring pendant 12 cannot be lost and is free to slide axially along the middle tube 26 towards the center of the case 20 of the pocket watch 1 against the restoring force of the return spring 42.
  • the axial travel of the ring pendant 12 is determined by the distance which separates the first flange 30 of the ring tube 24 from the second flange 32 of this same ring tube 24.
  • the crown 18 is fixed in a removable manner to the proximal end of the ring tube 24, and the ring 14 is fixed on the ring pendant 12 by means of the screws 16. It is important to note that the crown 18 is particularly intended for winding a watch movement housed in the box 20 of the pocket watch 1 and plays no role in the operation of the control device 10 which equips the pocket watch 1 according to the invention. Likewise, the presence of the ring 14 is justified by aesthetic and technical considerations (facilitating the actuation of the control device 10 and protecting the crown 18 against the risk of tearing or involuntary operation), but not is not essential for the proper functioning of the control device 10.
  • the control device 10 In its rest state, the control device 10 is in a situation in which the assembly formed by the ring pendant 12 and the ring 14 is pushed back by the return spring 42 towards the outside of the box 20 of the pocket watch 1.
  • the safety pin 54 In this position, the safety pin 54 is in its semi-cylindrical notch 74 and the first and second tenons 56a, 56b are at a certain distance above the first and second edges 70a, 70b . From this position, the user who wishes, for example, to open the first cover 2a of his pocket watch 1, must exert a push on the ring pendant 12 towards the center of the case 20 of the pocket watch 1, at against the return force of the return spring 42.
  • the ring pendant 12 approaches the middle part 6 of the pocket watch case 1, and the tenons 56a, 56b find themselves at immediate proximity of the first and second edges 70a, 70b.
  • the safety pin 54 after coming out of its semi-cylindrical notch 74, it finds itself at the height of the first and second grooves 76a, 76b.
  • the safety pin 54 will penetrate into the first groove 76a and the ring pendant 12 will be able to pivot by approximately 45° until the safety pin 54 reaches abutment 77a at the bottom of the first groove 76a.
  • first and second tenons 56a, 56b which, initially, rested respectively on their first and second edges 70a, 70b, will also pivot by 45°, so that the second tenon 56b will end up at the plumb with the clearance 72, while the first tenon 56a will find itself plumb with the first actuating pin 64a.
  • the height of the first groove 76a in which the safety pin 54 is located is sufficient so that, having arrived in this position, the user, by pushing on the ring pendant 12 against the return force of the spring, reminder 42, manages to move this ring pendant 12 axially towards the middle part 6 of the case 20 of the pocket watch 1.
  • the second tenon 56b penetrates into the clearance 72 and does not produce any effect, while the first tenon 56a comes into contact with the first actuating pin 64a and forces the latter to move axially in the direction of the middle part 6 of the case 20 of the pocket watch 1. It will be understood that , so that the first tenon 56a can come into contact with the first actuating pin 64a, the diameter of the return spring 42 should be less than the diameter of the circle C on which this first tenon 56a is arranged.
  • the axial movement of the first actuation pin 64a is made possible thanks to the fact that the retaining plate 68 is mounted so that a slight axial play remains between the lugs 66a, 66b of the actuation pins 64a, 64b and the second bearing surface 79 provided in the middle housing 40, this clearance defining the stroke of the actuating pins 64a, 64b which allows them to actuate the locking springs 80a, 80b of the first and second covers 2a, 2b.
  • the first actuating pin 64a will actuate the first locking spring 80a which, in turn, will, in a manner known per se, control the opening of the first cover 2a.
  • the pocket watch 1 is provided with two opening springs 86a and 86b which are respectively associated with the first and second covers 2a and 2b and which each comprise a tenon 88a and 88b.
  • the covers 2a and 2b press on the tenons 88a and 88b of the opening springs 86a and 86b and cause these opening springs 86a, 86b to bend in a direction perpendicular to a plane in which extends the movement of the pocket watch 1.
  • the opening springs 86a, 86b are therefore under tension but are prevented from relaxing to return to their rest position because the covers 2a, 2b are held closed by the springs.
  • the two opening springs 80a and 80b are each provided with a lug, respectively 90a and 90b, which projects into a corresponding cavity provided on the interior face of each cover 2a, 2b.
  • the first actuating pin 64a slightly pushes back the spring opening 80a towards the inside of the case 20 of the pocket watch 1, so that the lug 90a comes out of the cavity provided on the interior face of the cover 2a; at this moment, the cover 2a is no longer retained, which allows the opening spring 86a to relax to return to its rest position and cause the cover 2a to pivot upwards.
  • What has just been described for opening the first cover 2a applies in the same way to opening the cover 2b.
  • the opening of the second cover 2b obeys the same rules as the opening of the first cover 2a which we have just described.
  • the ring pendant 12 is rotated by 45° so that the safety pin 54 abuts against the bottom of the second groove 76b. During this movement, the first tenon 56a will come to position itself above the clearance 72, while the second tenon 56b will find itself above the second actuating pin 64b. Then the ring pendant 12 is pushed axially in the direction of the middle part 6 of the case 20 of the pocket watch 1 against the return force of the return spring 42.
  • the first tenon 56a will penetrate into the clearance 72 without produce effect, while the second tenon 56b will press on the second actuating pin 64b and cause its axial movement towards the middle part 6 of the case 20 of the pocket watch 1.
  • the actuation 64b will actuate the second locking spring 80b which, in turn, will control the opening of the second cover 2b in a manner known per se.

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  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
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  • Electromechanical Clocks (AREA)

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention a pour objet une pièce d'horlogerie, notamment une montre de poche, équipée d'au moins un couvercle qui cache par exemple un cadran au-dessus duquel se déplace un jeu d'aiguilles.The present invention relates to a timepiece, in particular a pocket watch, equipped with at least one cover which hides, for example, a dial above which a set of hands moves.

Arrière-plan technologique de l'inventionTechnological background of the invention

Une pièce d'horlogerie du type indiqué ci-dessus est par exemple connue du brevet suisse CH 689338 A5 au nom de Patek . Plus précisément, la pièce d'horlogerie décrite dans le brevet Patek est une montre de poche munie d'un couvercle sur chacune de ses faces, ces couvercles pouvant l'un et l'autre être ouverts à l'aide d'un mécanisme commandé par un plot coulissant axialement dans la couronne.A timepiece of the type indicated above is for example known from the Swiss patent CH 689338 A5 on behalf of Patek . More precisely, the timepiece described in the Patek patent is a pocket watch provided with a cover on each of its faces, these covers being able to both be opened using a controlled mechanism by a stud sliding axially in the crown.

Le principe du mécanisme Patek d'ouverture de deux couvercles de dessus et de dessous d'une montre de poche est de se servir d'un plot d'actionnement qui, suivant la position angulaire occupée par le pendant, provoque l'ouverture de l'un ou l'autre de ces deux couvercles. Dans une première position, le pendant est en position haute, bloqué angulairement, et si l'utilisateur exerce une pression sur le plot, il provoque l'ouverture du couvercle de dessus de la montre de bracelet. A partir de cette position, si l'utilisateur déplace légèrement le pendant en direction de la carrure, le pendant est débloqué angulairement et l'utilisateur peut pivoter ce pendant dans un sens de 180°. Lorsque le pendant a tourné de 180°, l'utilisateur relâche le pendant qui se déplace axialement sous une action de rappel et retourne en position haute bloquée mais à 180° de sa première position de blocage. Dans cette seconde position de blocage du pendant, l'utilisateur peut provoquer l'ouverture du couvercle de dessous par une poussée sur le plot d'actionnement.The principle of the Patek mechanism for opening two top and bottom covers of a pocket watch is to use an actuating pad which, depending on the angular position occupied by the pendant, causes the opening of the one or the other of these two lids. In a first position, the pendant is in the high position, blocked angularly, and if the user exerts pressure on the stud, it causes the top cover of the wristwatch to open. From this position, if the user moves the pendant slightly towards the middle, the pendant is angularly unlocked and the user can pivot this pendant in a direction of 180°. When the pendant has rotated 180°, the user releases the pendant which moves axially under a return action and returns to the high locked position but 180° from its first blocked position. In this second locking position of the pendant, the user can cause the bottom cover to open by pushing on the actuation stud.

Pour atteindre ce résultat, la montre de poche Patek comprend un couvercle sur chacune de ses faces, un pendant et un mécanisme de remontoir et de mise à l'heure comprenant une couronne, un canon et une tige cylindrique de remontoir. Le mécanisme d'ouverture des couvercles comprend un plot d'actionnement qui coulisse axialement dans la couronne de remontoir et qui, par l'intermédiaire de tiges coulissantes guidées par le mécanisme de remontoir, agit sur des verrous qui en temps normal maintiennent les couvercles en position fermée.To achieve this result, the Patek pocket watch includes a cover on each of its faces, a pendant and a winding and time-setting mechanism comprising a crown, a barrel and a cylindrical winding stem. The lid opening mechanism comprises an actuating stud which slides axially in the winding crown and which, via sliding rods guided by the winding mechanism, acts on locks which normally hold the lids in place. closed position.

L'un des intérêts du mécanisme Patek réside dans le fait qu'il permet l'ouverture des deux couvercles de la montre de poche. Le mécanisme Patek permet d'éviter le risque de rayer la boîte de la montre si l'on utilise un couteau pour ouvrir l'un des deux couvercles, ou de se casser un ongle car l'encliquètement du couvercle est habituellement relativement dur.One of the advantages of the Patek mechanism lies in the fact that it allows the two covers of the pocket watch to be opened. The Patek mechanism avoids the risk of scratching the watch case if you use a knife to open one of the two covers, or of breaking a nail because snapping the cover into place is usually relatively hard.

Aux yeux de la Demanderesse, le mécanisme Patek présente cependant plusieurs inconvénients. L'un de ces inconvénients réside dans le fait que le mécanisme d'ouverture Patek ne semble pas très pratique. En effet, le mécanisme d'ouverture Patek se trouve en permanence dans une position dans laquelle une simple pression sur le plot d'actionnement entraîne l'ouverture de l'un des couvercles. Par conséquent, les risques que l'un des couvercles s'ouvre de manière intempestive sont importants, en particulier si la montre est dans une poche d'un vêtement. Par ailleurs, il semble assez difficile de devoir appuyer sur le pendant pour l'amener de sa première position bloquée à la position dans laquelle il est débloqué et peut être tourné de 180° sans actionner simultanément le plot d'actionnement et donc provoquer l'ouverture de l'un des couvercles, même lorsque cela n'est pas souhaité. Enfin, être obligé de tourner le pendant de 180° pour le faire passer de sa première à sa seconde position bloquée ne semble pas non plus très pratique. Il s'agit d'un mouvement assez ample qui ne doit pas être très commode à réaliser avec un composant aussi petit que le pendant de la montre de poche Patek. Par ailleurs, l'utilisation du mécanisme d'ouverture Patek n'est pas très intuitive. Effectivement, le mode opératoire pour ouvrir le couvercle supérieur et celui pour ouvrir le couvercle inférieur ne sont pas les mêmes. Dans le cas du couvercle supérieur, l'ouverture de celui-ci est obtenue en appuyant sur le plot d'actionnement. Dans le cas du couvercle inférieur par contre, l'ouverture de ce couvercle inférieur est obtenue en poussant le pendant en direction de la carrure, puis en faisant pivoter le pendant de 180° et enfin en appuyant sur le plot d'actionnement. Par conséquent, l'utilisateur, selon qu'il souhaite ouvrir le couvercle supérieur ou le couvercle inférieur, doit effectuer des opérations très différentes les unes des autres, et doit à chaque fois se souvenir à l'ouverture de quel couvercle correspondent quelles manipulations, ce qui est très peu commode et contraire à l'intuition.In the eyes of the Applicant, however, the Patek mechanism presents several disadvantages. One of these drawbacks is that the Patek opening mechanism does not seem very practical. In fact, the Patek opening mechanism is permanently in a position in which a simple pressure on the actuation pad causes one of the covers to open. Therefore, the risks of one of the covers opening unexpectedly are high, particularly if the watch is in a pocket of clothing. Furthermore, it seems quite difficult to have to press on the pendant to bring it from its first locked position to the position in which it is unlocked and can be rotated by 180° without simultaneously activating the actuation pad and therefore causing the opening one of the covers, even when this is not desired. Finally, having to turn the pendant 180° to pass it from its first to its second blocked position does not seem very practical either. This is a fairly large movement which should not be very easy to make with a component as small as the pendant of the Patek pocket watch. Furthermore, using the Patek opening mechanism is not very intuitive. Indeed, the procedure for opening the upper cover and that for opening the lower cover are not the same. In the case of the upper cover, it is opened by pressing on the actuation pin. In the case of the lower cover on the other hand, the opening of this lower cover is obtained by pushing the pendant towards the middle, then by rotating the pendant by 180° and finally by pressing on the actuation stud. Consequently, the user, depending on whether he wishes to open the upper cover or the lower cover, must carry out very different operations from each other, and must each time remember when opening which cover corresponds to which manipulations, which is very inconvenient and counterintuitive.

Résumé de l'inventionSummary of the invention

La présente invention a pour but de pallier les problèmes mentionnés ci-dessus ainsi que d'autres encore en procurant une pièce d'horlogerie, notamment une montre de poche, comprenant un dispositif mécanique d'ouverture d'au moins un couvercle qui recouvre un cadran au-dessus duquel se déplace au moins une aiguille ou bien un décor, ce dispositif mécanique d'ouverture étant simple de conception et d'utilisation.The present invention aims to overcome the problems mentioned above as well as others by providing a timepiece, in particular a pocket watch, comprising a mechanical device for opening at least one cover which covers a dial above which at least one needle or decoration moves, this mechanical opening device being simple in design and use.

A cet effet, la présente invention, telle que définie dans la revendication 1, concerne une pièce d'horlogerie, notamment une montre de poche, comprenant une boîte délimitée par une carrure, la pièce d'horlogerie comprenant également au moins un couvercle recouvrant un dispositif d'affichage d'une information ainsi qu'un dispositif de commande d'ouverture du au moins un couvercle, ce dispositif de commande d'ouverture comprenant un pendant anneau et un organe de transmission de commande, le pendant anneau étant agencé pour être poussé rectilignement une première fois en direction de la carrure jusqu'à une première position de butée, puis pour être pivoté selon une première direction jusqu'à une seconde position de butée, puis pour être poussé rectilignement une seconde fois en direction de la carrure afin de provoquer l'ouverture du couvercle par action sur l'organe de transmission de commande.To this end, the present invention, as defined in claim 1, relates to a timepiece, in particular a pocket watch, comprising a box delimited by a middle part, the timepiece also comprising at least one cover covering a device for displaying information as well as a device for controlling the opening of at least one cover, this opening control device comprising a ring pendant and a transmission member of control, the ring pendant being arranged to be pushed rectilinearly a first time in the direction of the middle to a first stop position, then to be pivoted in a first direction to a second stop position, then to be pushed rectilinearly a second time in the direction of the middle in order to cause the cover to open by action on the control transmission member.

La pièce d'horlogerie comprend un premier et un second couvercle qui recouvrent respectivement un premier et un second dispositif d'affichage d'une information ainsi qu'un dispositif de commande d'ouverture du premier, respectivement du second couvercle, ce dispositif de commande d'ouverture comprenant un pendant anneau ainsi qu'un premier, respectivement un second organe de transmission de commande, le pendant anneau étant agencé pour être poussé rectilignement une première fois en direction de la carrure jusqu'à une première position de butée, puis pour être pivoté selon une première direction jusqu'à une seconde position de butée, puis pour être poussé rectilignement une seconde fois en direction de la carrure afin de provoquer l'ouverture du premier couvercle par action sur le premier organe de transmission de commande, le pendant anneau étant agencé de façon à pouvoir, depuis la première position de butée, être pivoté selon une seconde direction jusqu'à une seconde position de butée, puis pour être poussé rectilignement une seconde fois en direction de la carrure afin de provoquer l'ouverture du second couvercle par action sur le second organe de transmission de commande.The timepiece comprises a first and a second cover which respectively cover a first and a second information display device as well as a device for controlling the opening of the first, respectively the second cover, this control device opening comprising a pendant ring as well as a first, respectively a second control transmission member, the pendant ring being arranged to be pushed rectilinearly a first time in the direction of the middle to a first stop position, then to be pivoted in a first direction to a second stop position, then to be pushed rectilinearly a second time in the direction of the middle in order to cause the opening of the first cover by action on the first control transmission member, the pendant ring being arranged so as to be able, from the first stop position, to be pivoted in a second direction to a second stop position, then to be pushed rectilinearly a second time in the direction of the middle part in order to cause the opening of the second cover by action on the second control transmission member.

Grâce à ces caractéristiques, la présente invention procure une pièce d'horlogerie, notamment une montre de poche, comprenant au moins un couvercle dont l'ouverture est commandée par action sur un pendant qui doit d'abord être déplacé rectilignement en direction de la carrure de la montre, puis pivoté avant d'être à nouveau déplacé rectilignement en direction de la carrure pour provoquer l'ouverture du couvercle. On comprend donc que toute ouverture involontaire du couvercle est impossible. Par ailleurs, dans le mode de réalisation où la pièce d'horlogerie comprend deux couvercles, la séquence de manipulations que doit effectuer l'utilisateur pour ouvrir l'un ou l'autre des deux couvercles est pratiquement la même, ce qui facilite grandement l'utilisation de la pièce d'horlogerie. En effet, l'utilisateur n'a pas besoin de réfléchir pour déterminer quelle séquence de manipulations il doit effectuer en fonction du couvercle qu'il souhaite ouvrir. On notera également que le dispositif de commande d'ouverture d'un couvercle de la pièce d'horlogerie selon l'invention ne fait intervenir aucun bouton poussoir ; les risques d'ouverture involontaire du couvercle sont ainsi évités, la fiabilité du dispositif de commande est accrue et le prix de revient est réduit.Thanks to these characteristics, the present invention provides a timepiece, in particular a pocket watch, comprising at least one cover whose opening is controlled by action on a pendant which must first be moved rectilinearly in the direction of the middle of the watch, then pivoted before being moved straight again in the direction of the middle to cause the cover to open. We therefore understand that any unintentional opening of the cover is impossible. Furthermore, in the embodiment where the timepiece comprises two covers, the sequence of manipulations that the user must carry out to open one or the other of the two covers is practically the same, which greatly facilitates the use of the timepiece. In fact, the user does not need to think to determine which sequence of manipulations he must carry out depending on the lid he wishes to open. It will also be noted that the device for controlling the opening of a cover of the timepiece according to the invention does not involve any push button; the risks of involuntary opening of the cover are thus avoided, the reliability of the control device is increased and the cost price is reduced.

Brève description des figuresBrief description of the figures

D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un exemple de réalisation d'une montre de poche selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel :

  • la figure 1 est une vue de face de la montre de poche, le premier couvercle étant fermé ;
  • la figure 2A est une vue de dessus, du côté du pendant anneau, de la montre de poche représentée à la figure 1 ;
  • la figure 2B est une vue analogue à celle de la figure 2A, le pendant anneau ayant été pivoté dans une première direction pour commander l'ouverture du premier couvercle ;
  • la figure 2C est une vue analogue à celle de la figure 2B, le pendant anneau ayant été pivoté dans une seconde direction, opposée à la première direction, pour commander l'ouverture du second couvercle ;
  • la figure 3 est une vue de la montre de poche en perspective sur laquelle les premier et second couvercles sont ouverts ;
  • la figure 4 est une vue éclatée en perspective du dispositif de commande selon l'invention ;
  • les figures 5A, 5B, 5C, 5D, 5E, 5F, 5G, 5H, 5I et 5J sont des vues à même échelle et sous différents angles du pendant anneau, du tube anneau, du tube carrure et d'une goupille d'actionnement ;
  • les figures 6A et 6B sont des vues de dessus du pendant carrure ;
  • les figures 7A et 7B sont des vues des deux parties du pendant carrure coupé selon un plan médian vertical ;
  • la figure 8 est une vue en perspective et en transparence du dispositif de commande selon l'invention.
Other characteristics and advantages of the present invention will emerge more clearly from the detailed description which follows of an exemplary embodiment of a pocket watch according to the invention, this example being given for purely illustrative and non-limiting purposes only in connection with the attached drawing in which:
  • there figure 1 is a front view of the pocket watch, with the first cover closed;
  • there Figure 2A is a top view, from the ring pendant side, of the pocket watch shown on the figure 1 ;
  • there Figure 2B is a view analogous to that of the Figure 2A , the ring pendant having been pivoted in a first direction to control the opening of the first cover;
  • there Figure 2C is a view analogous to that of the Figure 2B , the ring pendant having been pivoted in a second direction, opposite the first direction, to control the opening of the second cover;
  • there Figure 3 is a perspective view of the pocket watch with the first and second covers open;
  • there Figure 4 is an exploded perspective view of the control device according to the invention;
  • THE figures 5A, 5B, 5C, 5D, 5E, 5F , 5G, 5H, 5I and 5J are views on the same scale and from different angles of the ring pendant, the ring tube, the middle tube and an actuating pin;
  • THE Figures 6A and 6B are top views of the middle case;
  • THE Figures 7A and 7B are views of the two parts of the middle pendant cut along a vertical median plane;
  • there figure 8 is a perspective and transparent view of the control device according to the invention.

Description détaillée d'un mode de réalisation de l'inventionDetailed description of an embodiment of the invention

La présente invention procède de l'idée générale inventive qui consiste à équiper une pièce d'horlogerie, notamment une montre de poche, d'un dispositif de commande de l'ouverture d'au moins un couvercle recouvrant un dispositif d'affichage. Ce dispositif de commande ne peut être actionné involontairement, de sorte que tout risque d'ouverture inopinée du couvercle est écarté ; ce dispositif de commande ne fait intervenir aucun bouton-poussoir, de sorte que son fonctionnement est beaucoup plus fiable et son prix de revient réduit ; enfin, dans le cas où la pièce d'horlogerie est équipée de deux couvercles distincts, la suite d'opérations à effectuer pour ouvrir l'un ou l'autre de ces deux couvercles est quasiment identique, de sorte que l'utilisation de la pièce d'horlogerie selon l'invention est très intuitive.The present invention proceeds from the general inventive idea which consists of equipping a timepiece, in particular a pocket watch, with a device for controlling the opening of at least one cover covering a display device. This control device cannot be activated unintentionally, so that any risk of the cover opening unexpectedly is eliminated; this control device does not use any push button, so that its operation is much more reliable and its cost price reduced; finally, in the case where the timepiece is equipped with two separate covers, the sequence of operations to be carried out to open one or the other of these two covers is almost identical, so that the use of the timepiece according to the invention is very intuitive.

Désignée dans son ensemble par la référence numérique générale 1, la montre de poche selon l'invention comprend (voir figures 1 et 2A) un premier couvercle 2a et un second couvercle 2b. Ces premier et second couvercles 2a et 2b sont agencés pour pouvoir être ouverts et fermés à la demande de l'utilisateur de la montre de poche 1 (voir figures 2B et 2C). A cet effet, les premier et second couvercles 2a et 2b sont montés pivotants sur une carrure 6 de la montre de poche 1, par exemple au moyen de charnières 8. Lorsqu'ils s'ouvrent, les premier et second couvercles 2a et 2b révèlent aux yeux de l'utilisateur les dispositifs d'affichage d'informations que ces premier et second couvercles 2a et 2b recouvrent en temps normal. A titre d'exemple purement illustratif seulement, le premier couvercle 2a peut recouvrir (voir figure 3A) un dispositif d'affichage tel qu'un cadran horaire 9a au-dessus duquel se déplacent par exemple une aiguille des heures 9b et une aiguille des minutes 9c. Quant au second couvercle 2b, il peut recouvrir par exemple (voir figure 3B) un motif décoratif 11a. On comprendra cependant que les premier et second couvercles 2a et 2b peuvent recouvrir tous deux un cadran fournissant une indication horaire, l'un de ces cadrans indiquant par exemple au moyen d'un jeu d'aiguilles l'heure courante, tandis que l'autre cadran 11b peut, à l'aide d'un autre jeu d'aiguilles 11b, 11c, fournir une indication relative à un temps chronométré ou à un deuxième fuseau horaire.Designated as a whole by the general numerical reference 1, the pocket watch according to the invention comprises (see figures 1 and 2A ) a first cover 2a and a second cover 2b. These first and second covers 2a and 2b are arranged to be able to be opened and closed at the request of the user of the pocket watch 1 (see Figures 2B and 2C ). For this purpose, the first and second covers 2a and 2b are pivotally mounted on a middle part 6 of the pocket watch 1, for example by means of hinges 8. When they open, the first and second covers 2a and 2b reveal in the eyes of the user the information display devices that these first and second covers 2a and 2b normally cover. As a purely illustrative example only, the first cover 2a can cover (see Figure 3A ) a display device such as a time dial 9a above which move for example an hour hand 9b and a minute hand 9c. As for the second cover 2b, it can cover for example (see Figure 3B ) a decorative pattern 11a. It will be understood, however, that the first and second covers 2a and 2b can both cover a dial providing a time indication, one of these dials indicating for example by means of a set of hands the current time, while the another dial 11b can, using another set of hands 11b, 11c, provide an indication relating to a timed time or a second time zone.

L'invention va être décrite en liaison avec une montre de poche munie d'un premier et d'un second couvercle. On comprendra néanmoins que l'invention n'est nullement limitée à ce mode de réalisation particulier et que l'invention s'applique de manière identique au cas où la montre de poche comprend un seul couvercle. On comprendra également que, bien que décrite en liaison avec une montre de poche, la présente invention peut s'appliquer à tout type de pièce d'horlogerie équipée d'au moins un couvercle, en particulier une montre-bracelet.The invention will be described in connection with a pocket watch provided with a first and a second cover. It will nevertheless be understood that the invention is in no way limited to this particular embodiment and that the invention applies identically to the case where the pocket watch comprises a single cover. It will also be understood that, although described in connection with a pocket watch, the present invention can be applied to any type of timepiece equipped with at least one cover, in particular a wristwatch.

La montre de poche selon l'invention comprend un dispositif permettant à son utilisateur de commander l'ouverture du (ou des) couvercle(s). Par la suite, on qualifiera de « proximaux » les éléments du dispositif de commande situés du côté de la carrure de la montre de poche, et de de « distaux » les éléments du dispositif de commande situés du côté de l'anneau. On comprendra également que les tubes dont il va être question ci-dessous et, plus généralement, le dispositif de commande dans son ensemble sont centrés sur un axe longitudinal de symétrie X-X qui s'étend selon une direction radiale dirigée vers le centre de la boîte de la montre de poche. De même, on qualifiera de « haut » un élément situé du côté de l'anneau, et de « bas » un élément situé du côté de la carrure.The pocket watch according to the invention comprises a device allowing its user to control the opening of the cover(s). Subsequently, we will describe as “proximal” the elements of the control device located on the side of the middle of the pocket watch, and “distal” the elements of the control device located on the side of the ring. It will also be understood that the tubes which will be discussed below and, more generally, the control device as a whole are centered on a longitudinal axis of symmetry XX which extends in a radial direction directed towards the center of the box of the pocket watch. Likewise, we will describe as “top” an element located on the side of the ring, and “bottom” an element located on the side of the middle.

Conformément à l'invention, la montre de poche 1 est équipée d'un dispositif de commande 10 de l'ouverture des premier et second couvercles 2a et 2b. Ce dispositif de commande 10 comprend (voir figure 4) un premier pendant 12 que, pour des raisons de clarté de l'exposé, nous appellerons par la suite « pendant anneau » 12. Ce pendant anneau 12 porte un anneau 14 qui est monté sur le pendant anneau 12 de manière amovible, par exemple au moyen de deux vis 16. Finalement, le pendant anneau 12 est surmonté d'une couronne 18 que l'on fixe sur le pendant anneau 12 de manière amovible et qui est utile notamment pour le remontage d'un mouvement horloger logé dans une boîte 20 de la montre de poche 1. Cette couronne 18 sera décrite plus en détail ultérieurement.In accordance with the invention, the pocket watch 1 is equipped with a device 10 for controlling the opening of the first and second covers 2a and 2b. This control device 10 comprises (see Figure 4 ) a first pendant 12 which, for reasons of clarity of the presentation, we will hereafter call "ring pendant" 12. This ring pendant 12 carries a ring 14 which is mounted on the ring pendant 12 in a removable manner, for example by means of two screws 16. Finally, the ring pendant 12 is surmounted by a crown 18 which is fixed on the ring pendant 12 in a removable manner and which is useful in particular for winding a watch movement housed in a box 20 of pocket watch 1. This crown 18 will be described in more detail later.

Le dispositif de commande 10 comprend également un second pendant 22 que, pour des raisons de clarté de l'exposé, nous appellerons « pendant carrure » 22 par la suite. Ce pendant carrure 22 est fixé sur la carrure 6 de la boîte 20 de la montre de poche 1 par tout moyen approprié, par exemple par vissage ou bien encore par soudage.The control device 10 also includes a second pendant 22 which, for reasons of clarity of presentation, we will call “middle pendant” 22 hereinafter. This middle part 22 is fixed to the middle part 6 of the case 20 of the pocket watch 1 by any appropriate means, for example by screwing or even by welding.

Le dispositif de commande 10 comprend également un premier tube 24 que, pour des raisons de clarté de l'exposé, nous appellerons par la suite « tube anneau » 24. Le dispositif de commande 10 comprend également un second tube 26 que, pour des raisons de clarté de l'exposé, nous appellerons par la suite « tube carrure » 26. Le tube carrure 26 est fixé dans la carrure 6 de la boîte 20 de la montre de poche 1 par tout moyen approprié tel que par vissage. Le tube anneau 24 est quant à lui fixé dans le tube carrure 26 par exemple par vissage grâce à un filetage 28 prévu à son extrémité distale. Le tube anneau 24 est également muni sur sa périphérie extérieure d'une première collerette 30 et d'une seconde collerette 32 qui font office de butées. Plus précisément, la première collerette 30 que nous appellerons par la suite « butée anneau » est agencée de façon à venir appuyer sur une première surface d'appui 34 située au fond d'un premier logement 36 (logement pendant anneau) ménagé dans le pendant anneau 12. De même, la seconde collerette 32 que nous appellerons par la suite « butée carrure » est agencée de façon à venir en appui contre l'extrémité distale 38 du tube carrure 26 lorsque le tube anneau 24 est complètement vissé dans le tube carrure 26 (voir figures 8 et 9).The control device 10 also comprises a first tube 24 which, for reasons of clarity of the presentation, we will hereafter call "ring tube" 24. The control device 10 also comprises a second tube 26 which, for reasons for clarity of presentation, we will hereafter call "middle tube" 26. The middle tube 26 is fixed in the middle part 6 of the case 20 of the pocket watch 1 by any appropriate means such as by screwing. The ring tube 24 is fixed in the middle tube 26 for example by screwing using a thread 28 provided at its distal end. The ring tube 24 is also provided on its outer periphery with a first flange 30 and a second flange 32 which act as stops. More precisely, the first collar 30 which we will subsequently call "ring stop" is arranged so as to press on a first support surface 34 located at the bottom of a first housing 36 (ring pendant housing) provided in the pendant ring 12. Likewise, the second collar 32 which we will subsequently call "middle stop" is arranged so as to come to rest against the distal end 38 of the middle tube 26 when the ring tube 24 is completely screwed into the middle tube 26 (see figures 8 And 9 ).

Le pendant anneau 12 est engagé libre en coulissement sur le tube carrure 26 avec interposition d'un ressort de rappel 42 enfilé sur le tube carrure 26 et qui est pris en sandwich entre le pendant anneau 12 et la carrure 6 de la boîte 20 de la montre de poche 1.The ring pendant 12 is engaged in sliding freely on the middle tube 26 with the interposition of a return spring 42 threaded onto the middle tube 26 and which is sandwiched between the ring pendant 12 and the middle part 6 of the box 20 of the pocket watch 1.

Le pendant anneau 12 et le pendant carrure 22 sont sensiblement de même forme et de mêmes dimensions l'un et l'autre. Dans l'exemple représenté aux figures à titre purement illustratif et non limitatif seulement, les deux pendants 12 et 22 se présentent sous la forme d'un bloc de forme générale parallélépipédique dont les arêtes ont été biseautées pour des considérations d'ordre purement esthétique seulement.The ring pendant 12 and the middle case pendant 22 are both substantially of the same shape and the same dimensions. In the example shown in the figures for purely illustrative and non-limiting purposes only, the two pendants 12 and 22 are in the form of a block of generally parallelepiped shape whose edges have been beveled for purely aesthetic considerations only. .

Comme on le voit à l'examen de la figure 4, les petites faces 44 du pendant anneau 12 sont percées chacune d'un trou 46 pour permettre le vissage des vis 16 nécessaires au montage de l'anneau 14 sur le pendant anneau 12. Par ailleurs, du côté proximal, c'est-à-dire lorsque l'on regarde en direction du centre de la boîte 20 de la montre de poche 1, on voit que le pendant anneau 12 est muni d'une première et d'une seconde portion cylindrique, respectivement 48 et 50, qui sont agencées à la suite l'une de l'autre dans le sens distal/proximal, le diamètre extérieur de la première portion cylindrique 48 étant supérieur au diamètre extérieur de la seconde portion cylindrique 50, ce qui matérialise une surface annulaire 52 à la jonction entre ces deux portions cylindriques 48 et 50.As we see when examining the Figure 4 , the small faces 44 of the ring pendant 12 are each pierced with a hole 46 to allow the screwing of the screws 16 necessary for mounting the ring 14 on the ring pendant 12. Furthermore, on the proximal side, that is to say that is, when we look towards the center of the case 20 of the pocket watch 1, we see that the ring pendant 12 is provided with a first and a second cylindrical portion, respectively 48 and 50, which are arranged one after the other in the distal/proximal direction, the outer diameter of the first cylindrical portion 48 being greater than the outer diameter of the second cylindrical portion 50, which materializes an annular surface 52 at the junction between these two cylindrical portions 48 and 50.

A sa base, la seconde portion cylindrique 50 du pendant anneau 12 est munie d'un ergot de sécurité 54 et d'un premier et d'un second tenon respectivement 56a et 56b (voir plus particulièrement les figures 5A à 5F). Dans l'exemple représenté au dessin, les tenons sont au nombre de deux ; on comprendra néanmoins à la lecture de ce qui suit que le pendant anneau 12 peut n'être équipé que d'un seul tenon, dans le cas où la montre de poche 1 ne serait équipée que d'un seul couvercle. L'ergot de sécurité 54 et les deux tenons 56a et 56b sont agencés sensiblement sur un même cercle C (voir figure 5B). L'ergot de sécurité 54 est ménagé à la base de la seconde portion cylindrique 50 du pendant anneau 12, sur la surface extérieure de cette portion cylindrique 50. L'ergot de sécurité 54 fait donc saillie de la surface extérieure de la seconde portion cylindrique 50. Quant aux deux tenons 56a et 56b, ils sont prévus au pied de la seconde portion cylindrique 50, dans le prolongement de cette seconde portion cylindrique 50. On voit à l'examen de la figure que les deux tenons 56a et 56b sont disposés à 45° de part et d'autre d'un diamètre D1 qui passe par l'ergot de sécurité 54, et se trouvent à l'opposé de cet ergot de sécurité 54. Cette valeur angulaire est donnée à titre purement illustratif seulement, d'autres valeurs supérieures à 0° et inférieures à 90° pouvant être envisagées.At its base, the second cylindrical portion 50 of the ring pendant 12 is provided with a safety pin 54 and a first and a second tenon respectively 56a and 56b (see more particularly the Figures 5A to 5F ). In the example shown in the drawing, there are two tenons; It will nevertheless be understood on reading the following that the ring pendant 12 can only be equipped with a single tenon, in the case where the pocket watch 1 is only equipped with a single cover. The safety pin 54 and the two tenons 56a and 56b are arranged substantially on the same circle C (see Figure 5B ). The safety pin 54 is provided at the base of the second cylindrical portion 50 of the ring pendant 12, on the exterior surface of this cylindrical portion 50. The safety pin 54 therefore projects from the exterior surface of the second cylindrical portion 50. As for the two tenons 56a and 56b, they are provided at the foot of the second cylindrical portion 50, in the extension of this second cylindrical portion 50. We see on examination of the figure that the two tenons 56a and 56b are arranged at 45° on either side of a diameter D1 which passes through the safety lug 54, and are opposite this safety lug 54. This angular value is given for purely illustrative purposes only, d other values greater than 0° and less than 90° may be considered.

Le pendant anneau 12 dont on a dit ci-dessus qu'il se compose d'un bloc parallélépipédique prolongé en direction de la carrure 6 de la boîte 20 de la montre de poche 1 par deux portions cylindriques 48 et 50 étagées est percé d'un premier trou 60 ménagé dans le bloc parallélépipédique (voir figures 5E et 8). Le diamètre intérieur de ce premier trou 60 est suffisant pour laisser le passage à la première collerette 30 (encore appelée butée anneau) qui vient buter contre la première surface d'appui 34 formée par un rétrécissement local du diamètre intérieur du premier trou 60. Un second trou 62 dont le diamètre intérieur est légèrement supérieur au diamètre extérieur de la seconde collerette 32 (encore appelée butée carrure) pour permettre le passage de cette seconde collerette 32 est, quant à lui, percé dans les première et seconde portions cylindriques 48 et 50.The ring pendant 12, which was said above to consist of a parallelepiped block extended towards the middle part 6 of the case 20 of the pocket watch 1 by two stepped cylindrical portions 48 and 50, is pierced with a first hole 60 made in the parallelepiped block (see figures 5E And 8 ). The internal diameter of this first hole 60 is sufficient to allow passage to the first flange 30 (also called ring stop) which abuts against the first bearing surface 34 formed by a local narrowing of the internal diameter of the first hole 60. second hole 62 whose interior diameter is slightly greater than the exterior diameter of the second flange 32 (also called middle stop) to allow the passage of this second flange 32 is, for its part, pierced in the first and second cylindrical portions 48 and 50.

Le dispositif de commande 10 comprend également un premier et un second organe de transmission de commande par exemple du type d'une première et d'une seconde goupille d'actionnement 64a, 64b munies chacune d'un ergot 66a, respectivement 66b et d'une plaque de maintien 68 dont les rôles vont être décrits en détail ci-dessous. Dans le cas où la montre de poche 1 selon l'invention ne comprend qu'un seul couvercle, une seule goupille d'actionnement est nécessaire.The control device 10 also comprises a first and a second control transmission member, for example of the type of a first and a second actuating pin 64a, 64b each provided with a lug 66a, respectively 66b and a holding plate 68 whose roles will be described in detail below. In the case where the pocket watch 1 according to the invention comprises only one cover, only one actuating pin is necessary.

Le second logement 40 encore appelé logement pendant carrure traverse le pendant carrure 22 de part en part (voir figure 5I). Ce second logement 40 est de forme générale cylindrique avec un diamètre D2 et est centré sur l'axe longitudinal de symétrie X-X. Ce second logement 40 présente intérieurement (voir figures 6A, 6B et 7A, 7B) un premier et un second rebord, respectivement 70a et 70b. Ces rebords 70a, 70b, en forme d'arc de cercle, s'étendent chacun sur sensiblement 90° et sont agencés à la suite l'un de l'autre, avec la présence d'un dégagement 72 entre les deux. Par ailleurs, une encoche semi-cylindrique 74 qui s'étend selon l'axe longitudinal de symétrie X-X est ménagée dans la paroi latérale intérieure du second logement 40, à l'exact opposé du dégagement 72. Cette encoche semi-cylindrique 74 est prévue pour permettre le passage de l'ergot de sécurité 54 lorsque le pendant anneau 12 est introduit dans le pendant carrure 22. L'encoche semi-cylindrique 74 débouche dans une première et une seconde rainure 76a et 76b en forme d'arcs de cercle qui s'étendent de part et d'autre de l'encoche 74 sur un secteur angulaire d'approximativement 45° et qui sont délimitées chacune par une butée 77a, 77b de fond de fraisage (voir notamment figures 7A et 7B). On comprendra que, dans le cas où la montre de poche 1 ne comprend qu'un seul couvercle, une seule rainure sera nécessaire. On comprendra également à la lecture de ce qui suit que selon que l'on souhaite ouvrir le premier couvercle 2a ou le second couvercle 2b, l'exécution de la manoeuvre d'ouverture conduira l'ergot de sécurité 54 à coulisser soit dans la première rainure 76a, soit dans la seconde rainure 76b.The second housing 40, also called middle housing, passes through the middle housing 22 right through (see Figure 5I ). This second housing 40 is of generally cylindrical shape with a diameter D2 and is centered on the longitudinal axis of symmetry XX . This second housing 40 presents internally (see Figures 6A, 6B and 7A, 7B ) a first and a second rim, respectively 70a and 70b. These edges 70a, 70b, in the shape of an arc of a circle, each extend over approximately 90° and are arranged one after the other, with the presence of a clearance 72 between the two. Furthermore, a semi-cylindrical notch 74 which extends along the longitudinal axis of symmetry XX is provided in the interior side wall of the second housing 40, exactly opposite the clearance 72. This semi-cylindrical notch 74 is provided to allow the passage of the safety lug 54 when the ring pendant 12 is introduced into the middle pendant 22. The semi-cylindrical notch 74 opens into a first and a second groove 76a and 76b in the form of arcs of a circle which extend on either side of the notch 74 over an angular sector of approximately 45° and which are each delimited by a milling bottom stop 77a, 77b (see in particular Figures 7A and 7B ). It will be understood that, in the case where the pocket watch 1 includes only one cover, only one groove will be necessary. It will also be understood from reading the following that depending on whether it is desired to open the first cover 2a or the second cover 2b, execution of the opening maneuver will cause the safety pin 54 to slide either in the first groove 76a or in the second groove 76b.

Les première et seconde goupilles d'actionnement 64a, 64b sont introduites dans des premier et second perçages, respectivement 78a et 78b, percés axialement dans une seconde surface d'appui 79 prévue dans le fond du logement pendant carrure 40. Ces première et seconde goupilles d'actionnement 64a, 64b sont maintenues dans les perçages 78a, 78b grâce à leurs ergots 66a, 66b qui reposent sur la seconde surface d'appui 79 et qui empêchent ces goupilles d'actionnement 64a, 64b de s'échapper des perçages 78a, 78b axialement en direction de la carrure 6. A leur extrémité opposée aux ergots 66a, 66b, les première et seconde goupilles d'actionnement 64, 64b sont en appui sur un premier, respectivement un second ressort de verrouillage 80a, 80b, qui sont agencés dans la boîte 20 de la montre de poche 1 et qui commandent l'ouverture du couvercle 2a, 2b correspondant. Les perçages 78a, 78b sont usinés dans la seconde surface d'appui 79 du logement pendant carrure 40 de manière diamétralement opposée l'un par rapport à l'autre et sont situés à sensiblement 90° de part et d'autre de l'encoche semi-cylindrique 74. Par ailleurs, la plaque de maintien 68 est conformée de façon à être située au-dessus des ergots 66a, 66b des goupilles d'actionnement 64a, 64b et d'empêcher ces goupilles d'actionnement 64a, 64b de s'échapper des perçages 78a, 78b axialement en direction du pendant anneau 12. Cette plaque de maintien 68 est fixée dans le logement pendant carrure 40 au moyen d'au moins une vis 82 vissée dans un trou taraudé 84 usiné à l'aplomb de l'encoche semi-circulaire 74, à l'endroit où les première et seconde rainures 76a, 76b se rejoignent. Dès à présent, il est important de noter que la plaque de maintien 68 est montée de façon que subsiste un léger jeu axial entre les ergots 66a, 66b et la seconde surface d'appui 79, ce jeu définissant la course des goupilles d'actionnement 64a, 64b qui leur permet d'actionner les ressorts de verrouillage 80a, 80b des premier et second couvercles 2a, 2b.The first and second actuating pins 64a, 64b are introduced into first and second holes, respectively 78a and 78b, drilled axially in a second bearing surface 79 provided in the bottom of the middle housing 40. These first and second pins actuation pins 64a, 64b are held in the holes 78a, 78b thanks to their lugs 66a, 66b which rest on the second bearing surface 79 and which prevent these actuation pins 64a, 64b from escaping from the holes 78a, 78b axially in the direction of the middle part 6. At their end opposite the lugs 66a, 66b, the first and second actuating pins 64, 64b bear on a first, respectively a second locking spring 80a, 80b, which are arranged in the box 20 of the pocket watch 1 and which control the opening of the corresponding cover 2a, 2b. The holes 78a, 78b are machined in the second bearing surface 79 of the middle housing 40 diametrically opposed to each other and are located at approximately 90° on either side of the notch semi-cylindrical 74. Furthermore, the retaining plate 68 is shaped so as to be located above the lugs 66a, 66b of the actuating pins 64a, 64b and to prevent these actuating pins 64a, 64b from escape from the holes 78a, 78b axially in the direction of the ring pendant 12. This retaining plate 68 is fixed in the middle housing 40 by means of at least one screw 82 screwed into a tapped hole 84 machined directly above the semi-circular notch 74, where the first and second grooves 76a, 76b meet. From now on, it is important to note that the retaining plate 68 is mounted so that a slight axial play remains between the lugs 66a, 66b and the second bearing surface 79, this play defining the stroke of the actuating pins 64a, 64b which allows them to actuate the locking springs 80a, 80b of the first and second covers 2a, 2b.

Le montage du dispositif de commande 10 s'opère de la manière suivante : le pendant carrure 22 étant fixé sur la carrure 6 de la boîte 20 de la montre de poche 1, on engage le tube carrure 26 dans le logement pendant carrure 40 et on le visse dans la carrure 6. Après quoi, on enfile le ressort de rappel 42 sur le tube carrure 26, on introduit les première et seconde goupilles d'actionnement 64a, 64b dans les premier et second perçages 78a, 78b, puis on visse la plaque de maintien 68 dans le fond du logement pendant carrure 40, par-dessus les goupilles d'actionnement 64a, 64b. Ensuite, on engage le pendant anneau 12 dans le pendant carrure 22. Pour que cela soit possible, il faut veiller à ce que le pendant anneau 12 soit orienté de façon que l'ergot de sécurité 54 puisse pénétrer dans l'encoche semi-cylindrique 74. Puis on engage le tube anneau 24 dans le pendant anneau 12 et on le visse dans le tube carrure 26 jusqu'à ce que la seconde collerette ou butée carrure 32 du tube anneau 24 vienne buter contre l'extrémité distale 38 du tube carrure 26. A ce stade du montage, le pendant anneau 12 est imperdable et est libre de coulisser axialement le long du tube carrure 26 en direction du centre de la boîte 20 de la montre de poche 1 à l'encontre de la force de rappel du ressort de rappel 42. La course axiale du pendant anneau 12 est déterminée par la distance qui sépare la première collerette 30 du tube anneau 24 de la seconde collerette 32 de ce même tube anneau 24. Enfin, on fixe la couronne 18 de manière amovible à l'extrémité proximale du tube anneau 24, et on fixe l'anneau 14 sur le pendant anneau 12 au moyen des vis 16. Il est important de noter que la couronne 18 est notamment prévue pour le remontage d'un mouvement horloger logé dans la boîte 20 de la montre de poche 1 et ne joue aucun rôle dans le fonctionnement du dispositif de commande 10 qui équipe la montre de poche 1 selon l'invention. De même, la présence de l'anneau 14 se justifie par des considérations d'ordre esthétique et technique (faciliter l'actionnement du dispositif de commande 10 et protéger la couronne 18 contre les risques d'arrachement ou de manoeuvre involontaire), mais n'est pas indispensable au bon fonctionnement du dispositif de commande 10.The assembly of the control device 10 is carried out in the following manner: the middle pendant 22 being fixed on the middle part 6 of the case 20 of the pocket watch 1, the middle tube 26 is engaged in the middle pendant housing 40 and we screws it into the middle part 6. After which, we thread the return spring 42 onto the middle tube 26, we introduce the first and second actuating pins 64a, 64b into the first and second holes 78a, 78b, then we screw the retaining plate 68 in the bottom of the middle housing 40, over the actuating pins 64a, 64b. Then, the ring pendant 12 is engaged in the middle pendant 22. For this to be possible, it is necessary to ensure that the ring pendant 12 is oriented so that the safety pin 54 can penetrate into the semi-cylindrical notch 74. Then we engage the ring tube 24 in the ring pendant 12 and screw it into the middle tube 26 until the second flange or middle stop 32 of the ring tube 24 comes to abut against the distal end 38 of the middle tube 26. At this stage of assembly, the ring pendant 12 cannot be lost and is free to slide axially along the middle tube 26 towards the center of the case 20 of the pocket watch 1 against the restoring force of the return spring 42. The axial travel of the ring pendant 12 is determined by the distance which separates the first flange 30 of the ring tube 24 from the second flange 32 of this same ring tube 24. Finally, the crown 18 is fixed in a removable manner to the proximal end of the ring tube 24, and the ring 14 is fixed on the ring pendant 12 by means of the screws 16. It is important to note that the crown 18 is particularly intended for winding a watch movement housed in the box 20 of the pocket watch 1 and plays no role in the operation of the control device 10 which equips the pocket watch 1 according to the invention. Likewise, the presence of the ring 14 is justified by aesthetic and technical considerations (facilitating the actuation of the control device 10 and protecting the crown 18 against the risk of tearing or involuntary operation), but not is not essential for the proper functioning of the control device 10.

Dans son état de repos, le dispositif de commande 10 se trouve dans une situation dans laquelle l'ensemble formé par le pendant anneau 12 et l'anneau 14 est repoussé par le ressort de rappel 42 vers l'extérieur de la boîte 20 de la montre de poche 1. Dans cette position, l'ergot de sécurité 54 se trouve dans son encoche semi-cylindrique 74 et les premier et second tenons 56a, 56b se trouvent à une certaine distance au-dessus des premier et second rebords 70a, 70b. Depuis cette position, l'utilisateur qui souhaite, par exemple, ouvrir le premier couvercle 2a de sa montre de poche 1, doit exercer une poussée sur le pendant anneau 12 en direction du centre de la boîte 20 de la montre de poche 1, à l'encontre de la force de rappel du ressort de rappel 42. Sous l'effet de cette poussée, le pendant anneau 12 se rapproche de la carrure 6 de la boîte de montre de poche 1, et les tenons 56a, 56b se retrouvent à proximité immédiate des premier et second rebords 70a, 70b. Quant à l'ergot de sécurité 54, après être sorti de son encoche semi-cylindrique 74, il se retrouve à la hauteur des première et seconde rainures 76a, 76b. Supposons que, pour ouvrir le premier couvercle 2a, il faille tourner le pendant anneau 12 dans le sens horaire. Dans ce cas-là, l'ergot de sécurité 54 va pénétrer dans la première rainure 76a et le pendant anneau 12 va pouvoir pivoter d'environ 45° jusqu'à tant que l'ergot de sécurité 54 parvienne en butée 77a au fond de la première rainure 76a. Durant ce mouvement de pivotement, les premier et second tenons 56a, 56b qui, initialement, reposaient respectivement sur leurs premier et second rebords 70a, 70b, vont également pivoter de 45°, de sorte que le second tenon 56b va se retrouver à l'aplomb du dégagement 72, tandis que le premier tenon 56a va se retrouver à l'aplomb de la première goupille d'actionnement 64a. La hauteur de la première rainure 76a dans laquelle l'ergot de sécurité 54 se trouve est suffisante pour que, arrivé dans cette position, l'utilisateur, en poussant sur le pendant anneau 12 à l'encontre de la force de rappel du ressort de rappel 42, parvienne à déplacer ce pendant anneau 12 axialement en direction de la carrure 6 de la boîte 20 de la montre de poche 1. Au cours de ce déplacement, le second tenon 56b pénètre dans le dégagement 72 et ne produit aucun effet, tandis que le premier tenon 56a vient en contact avec la première goupille d'actionnement 64a et force cette dernière à se déplacer axialement en direction de la carrure 6 de la boîte 20 de la montre de poche 1. On comprendra que, pour que le premier tenon 56a puisse venir en contact avec la première goupille d'actionnement 64a, il convient que le diamètre du ressort de rappel 42 soit inférieur au diamètre du cercle C sur lequel est agencé ce premier tenon 56a. On rappelle également que le déplacement axial de la première goupille d'actionnement 64a est rendu possible grâce au fait que la plaque de maintien 68 est montée de façon que subsiste un léger jeu axial entre les ergots 66a, 66b des goupilles d'actionnement 64a, 64b et la seconde surface d'appui 79 ménagée dans le logement pendant carrure 40, ce jeu définissant la course des goupilles d'actionnement 64a, 64b qui leur permet d'actionner les ressorts de verrouillage 80a, 80b des premier et second couvercles 2a, 2b. Ainsi, en se déplaçant, la première goupille d'actionnement 64a va venir actionner le premier ressort de verrouillage 80a qui, à son tour, va, de manière connue en soi, commander l'ouverture du premier couvercle 2a. En effet, on voit d'après la figure 10 que la montre de poche 1 selon l'invention est munie de deux ressorts d'ouverture 86a et 86b qui sont associés respectivement aux premier et second couvercles 2a et 2b et qui comprennent chacun un tenon 88a et 88b. Quand ils sont en position fermée, les couvercles 2a et 2b appuient sur les tenons 88a et 88b des ressorts d'ouverture 86a et 86b et font fléchir ces ressorts d'ouverture 86a, 86b selon une direction perpendiculaire à un plan dans lequel s'étend le mouvement de la montre de poche 1. Dans cette situation, les ressorts d'ouverture 86a, 86b sont donc sous tension mais sont empêchés de se détendre pour retrouver leur position de repos car les couvercles 2a, 2b sont maintenus fermés par les ressorts de verrouillage 86a et 86b. En effet, comme cela est visible sur les figures 11A et 11B, les deux ressorts d'ouverture 80a et 80b sont munis chacun d'un ergot, respectivement 90a et 90b, qui fait saillie dans une cavité correspondante ménagée sur la face intérieure de chaque couvercle 2a, 2b. Par contre, lorsque l'utilisateur souhaite par exemple ouvrir le premier couvercle 2a et qu'il pousse sur le pendant anneau 12 en direction de la carrure 6 de la boîte 20 de la montre de poche 1, la première goupille d'actionnement 64a repousse légèrement le ressort d'ouverture 80a vers l'intérieur de la boîte 20 de la montre de poche 1, de sorte que l'ergot 90a sort de la cavité ménagée sur la face intérieure du couvercle 2a ; à ce moment-là, le couvercle 2a n'est plus retenu, ce qui autorise le ressort d'ouverture 86a à se détendre pour retrouver sa position de repos et provoquer le pivotement du couvercle 2a vers le haut. Ce qui vient d'être décrit pour l'ouverture du premier couvercle 2a s'applique de manière identique à l'ouverture du couvercle 2b.In its rest state, the control device 10 is in a situation in which the assembly formed by the ring pendant 12 and the ring 14 is pushed back by the return spring 42 towards the outside of the box 20 of the pocket watch 1. In this position, the safety pin 54 is in its semi-cylindrical notch 74 and the first and second tenons 56a, 56b are at a certain distance above the first and second edges 70a, 70b . From this position, the user who wishes, for example, to open the first cover 2a of his pocket watch 1, must exert a push on the ring pendant 12 towards the center of the case 20 of the pocket watch 1, at against the return force of the return spring 42. Under the effect of this thrust, the ring pendant 12 approaches the middle part 6 of the pocket watch case 1, and the tenons 56a, 56b find themselves at immediate proximity of the first and second edges 70a, 70b. As for the safety pin 54, after coming out of its semi-cylindrical notch 74, it finds itself at the height of the first and second grooves 76a, 76b. Suppose that, to open the first cover 2a, it is necessary to turn the ring pendant 12 clockwise. In this case, the safety pin 54 will penetrate into the first groove 76a and the ring pendant 12 will be able to pivot by approximately 45° until the safety pin 54 reaches abutment 77a at the bottom of the first groove 76a. During this pivoting movement, the first and second tenons 56a, 56b which, initially, rested respectively on their first and second edges 70a, 70b, will also pivot by 45°, so that the second tenon 56b will end up at the plumb with the clearance 72, while the first tenon 56a will find itself plumb with the first actuating pin 64a. The height of the first groove 76a in which the safety pin 54 is located is sufficient so that, having arrived in this position, the user, by pushing on the ring pendant 12 against the return force of the spring, reminder 42, manages to move this ring pendant 12 axially towards the middle part 6 of the case 20 of the pocket watch 1. During this movement, the second tenon 56b penetrates into the clearance 72 and does not produce any effect, while the first tenon 56a comes into contact with the first actuating pin 64a and forces the latter to move axially in the direction of the middle part 6 of the case 20 of the pocket watch 1. It will be understood that , so that the first tenon 56a can come into contact with the first actuating pin 64a, the diameter of the return spring 42 should be less than the diameter of the circle C on which this first tenon 56a is arranged. It is also recalled that the axial movement of the first actuation pin 64a is made possible thanks to the fact that the retaining plate 68 is mounted so that a slight axial play remains between the lugs 66a, 66b of the actuation pins 64a, 64b and the second bearing surface 79 provided in the middle housing 40, this clearance defining the stroke of the actuating pins 64a, 64b which allows them to actuate the locking springs 80a, 80b of the first and second covers 2a, 2b. Thus, by moving, the first actuating pin 64a will actuate the first locking spring 80a which, in turn, will, in a manner known per se, control the opening of the first cover 2a. Indeed, we see from the Figure 10 that the pocket watch 1 according to the invention is provided with two opening springs 86a and 86b which are respectively associated with the first and second covers 2a and 2b and which each comprise a tenon 88a and 88b. When they are in the closed position, the covers 2a and 2b press on the tenons 88a and 88b of the opening springs 86a and 86b and cause these opening springs 86a, 86b to bend in a direction perpendicular to a plane in which extends the movement of the pocket watch 1. In this situation, the opening springs 86a, 86b are therefore under tension but are prevented from relaxing to return to their rest position because the covers 2a, 2b are held closed by the springs. locking 86a and 86b. Indeed, as is visible on the Figures 11A and 11B , the two opening springs 80a and 80b are each provided with a lug, respectively 90a and 90b, which projects into a corresponding cavity provided on the interior face of each cover 2a, 2b. However, when the user wishes for example to open the first cover 2a and he pushes on the ring pendant 12 towards the middle part 6 of the case 20 of the pocket watch 1, the first actuating pin 64a slightly pushes back the spring opening 80a towards the inside of the case 20 of the pocket watch 1, so that the lug 90a comes out of the cavity provided on the interior face of the cover 2a; at this moment, the cover 2a is no longer retained, which allows the opening spring 86a to relax to return to its rest position and cause the cover 2a to pivot upwards. What has just been described for opening the first cover 2a applies in the same way to opening the cover 2b.

On comprendra que l'ouverture du second couvercle 2b obéit aux mêmes règles que l'ouverture du premier couvercle 2a que l'on vient de décrire. Le pendant anneau 12 est pivoté de 45° de façon que l'ergot de sécurité 54 vienne en butée contre le fond de la seconde rainure 76b. Durant ce déplacement, le premier tenon 56a va venir se positionner au-dessus du dégagement 72, tandis que le second tenon 56b va se retrouver au-dessus de la seconde goupille d'actionnement 64b. Puis le pendant anneau 12 est poussé axialement en direction de la carrure 6 de la boîte 20 de la montre de poche 1 à l'encontre de la force de rappel du ressort de rappel 42. Le premier tenon 56a va pénétrer dans le dégagement 72 sans produire d'effet, tandis que le second tenon 56b va appuyer sur la seconde goupille d'actionnement 64b et provoquer son déplacement axial en direction de la carrure 6 de la boîte 20 de la montre de poche 1. En se déplaçant, la goupille d'actionnement 64b va actionner le second ressort de verrouillage 80b qui, à son tour, va commander de manière connue en soi l'ouverture du second couvercle 2b.It will be understood that the opening of the second cover 2b obeys the same rules as the opening of the first cover 2a which we have just described. The ring pendant 12 is rotated by 45° so that the safety pin 54 abuts against the bottom of the second groove 76b. During this movement, the first tenon 56a will come to position itself above the clearance 72, while the second tenon 56b will find itself above the second actuating pin 64b. Then the ring pendant 12 is pushed axially in the direction of the middle part 6 of the case 20 of the pocket watch 1 against the return force of the return spring 42. The first tenon 56a will penetrate into the clearance 72 without produce effect, while the second tenon 56b will press on the second actuating pin 64b and cause its axial movement towards the middle part 6 of the case 20 of the pocket watch 1. By moving, the pin d The actuation 64b will actuate the second locking spring 80b which, in turn, will control the opening of the second cover 2b in a manner known per se.

Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre de l'invention tel que défini par les revendications annexées. On notera en particulier qu'une fois l'un des couvercles 2a ou 2b ouvert, il suffit, pour ramener le dispositif de commande 10 en position inactive, de tourner le pendant anneau 12 de 45° en arrière de manière à ramener l'ergot de sécurité 54 dans son encoche semi-cylindrique 74 et à permettre au pendant anneau 12 d'être repoussé en arrière dans sa position distale sous l'effet du ressort de rappel 42 qui se détend.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various simple modifications and variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined. by the appended claims. Note in particular that once one of the covers 2a or 2b is opened, it is sufficient to return the control device 10 to the inactive position, turn the ring pendant 12 45° backwards so as to bring the safety pin 54 back into its semi-cylindrical notch 74 and allow the ring pendant 12 to be pushed back into rear in its distal position under the effect of the return spring 42 which relaxes.

NomenclatureNomenclature

  • 1. Montre de poche1. Pocket watch
  • 2a. Premier couvercle2a. First cover
  • 2b. Second couvercle2b. Second cover
  • 6. Carrure6. Build
  • 8. Charnière8. Hinge
  • X-X. Axe longitudinal de symétrieX-X. Longitudinal axis of symmetry
  • 9a. Cadran horaire9a. Time dial
  • 9b. Aiguille des heures9b. Hour hand
  • 9c. Aiguille des minutes9c. Minute hand
  • 10. Dispositif de commande10. Control device
  • 11b. Cadran11b. Dial
  • 11b, 11c. Jeu d'aiguilles11b, 11c. Needle set
  • 12. Pendant anneau12. Pendant ring
  • 14. Anneau14. Ring
  • 16. Vis16. Screw
  • 18. Couronne18. Crown
  • 20. Boîte20. Box
  • 22. Pendant carrure22. During middle
  • 24. Tube anneau24. Ring tube
  • 26. Tube carrure26. Middle tube
  • 28. Filetage28. Thread
  • 30. Butée anneau30. Ring stop
  • 32. Butée carrure32. Middle stop
  • 34. Première surface d'appui34. First support surface
  • 36. Logement pendant anneau36. Housing for ring
  • 38. Extrémité distale38. Distal end
  • 40. Logement pendant carrure40. Accommodation during build
  • 42. Ressort de rappel42. Return spring
  • 44. Petites faces44. Small faces
  • 46. Trous46. Holes
  • 48. Première portion cylindrique48. First cylindrical portion
  • 50. Seconde portion cylindrique50. Second cylindrical portion
  • 52. Surface annulaire52. Annular surface
  • 54. Ergot de sécurité54. Safety pin
  • 56a. Premier tenon56a. First tenon
  • 56b. Second tenon56b. Second tenon
  • C. CercleC. Circle
  • D1. DiamètreD1. Diameter
  • 60. Premier trou60. First hole
  • 62. Second trou62. Second hole
  • 64a. Première goupille d'actionnement64a. First actuation pin
  • 64b. Seconde goupille d'actionnement64b. Second actuation pin
  • 66a. Premier ergot66a. First lug
  • 66b. Second ergot66b. Second lug
  • 68. Plaque de maintien68. Holding plate
  • D2. DiamètreD2. Diameter
  • 70a, 70b. Premier et second rebords70a, 70b. First and second edges
  • 72. Dégagement72. Clearance
  • 74. Encoche semi-cylindrique74. Semi-cylindrical notch
  • 76a, 76b. Première et seconde rainures76a, 76b. First and second grooves
  • 77a, 77b. Butées de fond de fraisage77a, 77b. Milling bottom stops
  • 78a, 78b. Premier et second perçages78a, 78b. First and second drilling
  • 79. Seconde surface d'appui79. Second support surface
  • 80a, 80b. Premier et second ressorts de verrouillage80a, 80b. First and second locking springs
  • 82. Vis82. Screw
  • 84. Trou taraudé84. Tapped hole
  • 86a, 86b. Ressorts d'ouverture86a, 86b. Opening springs
  • 88a, 88b. Tenons88a, 88b. Let's hold
  • 90a, 90b. Ergots90a, 90b. Dewclaws

Claims (8)

  1. Timepiece, in particular a pocket watch (1), comprising a case (20) delimited by a middle (6), the timepiece further comprising at least one cover (2a) covering a device for displaying information, as well as a device (10) for controlling the opening of the at least one cover (2a), this control device (10) comprising a ring pendant (12) provided with a cylindrical portion (50) which carries a safety catch (54) and a command transmission member, the control device (10) also comprising a middle pendant (22) which has a middle pendant housing (40) as well as at least a first circular arc groove (76a) delimited by a stop (77a) into which opens the middle pendant housing (40), the middle pendant (4) comprising a cylindrical notch (74) allowing the passage of the safety catch (54) into the middle pendant housing (40) wherein the ring pendant (12) is inserted such that it is free to slide against the return force of a return spring (42) being arranged to guide said ring pendant (12) when it is pushed in a rectilinear manner a first time towards the middle (6) into a first abutment position at the place where the middle pendant housing (40) opens into the at least one first groove (76a), then to enable the pivoting of said ring pendant (12) in a first direction in the at least one first groove (76a) up to the stop (77a), the execution of this manoeuvre leading the safety catch (54) to slide in said first groove (76a), then to enable the ring pendant (12) to be pushed in a rectilinear manner a second time towards the middle (6) so as to cause the cover (2a) to open by an action on the command transmission member arranged formed by an actuating pin (64a) to move under the effect of the action of the ring pendant (12) and to actuate a spring (80a) which controls the opening of the cover (2a), on the side of the middle (6) of the case (20) of the timepiece, the ring pendant (12) comprising a first and a second cylindrical portion (48, 50), which are arranged one after the other, the outer diameter of the first cylindrical portion (48) being greater than the outer diameter of the second cylindrical portion (50), at its base, the second cylindrical portion (50) of the ring pendant (12) is provided with a safety catch (54) and with a peg (56a), the safety catch (54) projecting from the outer surface of the second cylindrical portion (50), whereas the peg (56a) is provided at the base of the second cylindrical portion (50), in the continuation of this second cylindrical portion (50), the peg being arranged so as to allow the activation of the actuating pin (64a) in a particular condition of alignment of the ring pendant (12).
  2. Timepiece according to claim 1, characterised in that the safety catch (54) and the peg (56a) are substantially arranged in the same circle (C), the peg (56a) being arranged at an angle of more than 0° and less than 90° relative to a diameter (D1) that passes through the safety catch (54), and being substantially situated opposite this safety catch (54).
  3. Timepiece according to claim 1 or 2, characterised in that the middle pendant (22) is mounted such that it is fixed onto the middle (6) of the case (20).
  4. Timepiece according to claim 3, characterised in that the control device (10) comprises a middle pipe (26) engaged in a middle pendant housing (40) of the middle pendant (22) and fixed in the middle (6) of the case (20) of the timepiece, the control device (10) further comprising a ring pipe (24) fixed in the middle pipe (26), the ring pendant (12) being engaged such that it is free to slide with the interposition of a return spring (42) threaded on the middle pipe (26) and which is sandwiched between the ring pendant (12) and the middle (6) of the case (20) of the timepiece.
  5. Timepiece according to claim 4, characterised in that the ring pipe (24) is equipped, on the outer periphery thereof, with a first collar (30) and a second collar (32) which act as stops, the first collar (30) being arranged such that it is at rest on a first bearing surface (34) situated at the bottom of a ring pendant housing (36) made in the ring pendant (12), and the second collar (32) being arranged such that it is at rest against a distal end (38) of the middle pipe (26) when the ring pipe (24) is fixed inside the middle pipe (26).
  6. Timepiece according to one of the preceding claims, characterised in that the actuating pin (64a) is inserted into a bore (78a), axially pierced in a second bearing surface (79) provided in the bottom of the middle pendant housing (40), this actuating pin (64a) being retained in the bore (78a) thanks to the catch (66a) thereof, which is at rest on the second bearing surface (79) and which prevents this actuating pin (64a) from leaving the bore (78a) axially in the direction of the middle (6), the actuating pin (64a) being at rest, at the end thereof opposite the catch (66a), on a locking spring (80a), which is arranged in the case (20) of the pocket watch (1) and which controls the opening of the cover (2a), the ring pendant (12) being arranged such that the peg (56a) thereof bears against the actuating pin (64a) when this ring pendant (12) is pushed in a rectilinear manner a second time towards the middle (6) in order to cause the cover (2a) to open.
  7. Timepiece according to claim 6, characterised in that the control device (10) comprises a holding plate (68) fixed inside the middle pendant housing (12) such that it is situated above the catch (66a) of the actuating pin (64a) and prevents this actuating pin (64a) from leaving the bore (78a) axially in the direction of the ring pendant (12), the holding plate (68) being mounted such that an axial play remains between the catch (66a) and the second bearing surface (79), this play defining the travel of the actuating pin (64a), which allows it to actuate the locking spring (80a) of the cover (2a).
  8. Timepiece according to one of claims 1 to 7, characterised in that it comprises a first and a second cover (2a, 2b) which respectively cover a first and a second device for displaying information, as well as a device (10) for controlling the opening of the first, and respectively of the second cover (2a, 2b), this control device (10) comprising a ring pendant (12), as well as a first, and respectively a second command transmission member, the ring pendant (12) being arranged such that it is pushed in a rectilinear manner a first time towards the middle (6) into a first abutment position, then such that it is rotated in a first direction into a second abutment position, then such that it is pushed in a rectilinear manner a second time towards the middle (6) so as to cause the first cover (2a) to open by an action on the first command transmission member, the ring pendant (12) being arranged such that it is capable, from the first abutment position, of being rotated in a second direction into a second abutment position, then of being pushed in a rectilinear manner a second time towards the middle (6) in order to cause the second cover (2b) to open by an action on the second command transmission member.
EP18180556.5A 2018-06-28 2018-06-28 Timepiece, in particular a pocket watch, equipped with at least one cover Active EP3588199B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18180556.5A EP3588199B1 (en) 2018-06-28 2018-06-28 Timepiece, in particular a pocket watch, equipped with at least one cover
US16/433,171 US11442411B2 (en) 2018-06-28 2019-06-06 Timepiece, in particular a pocket watch, equipped with at least one cover
JP2019112488A JP6826159B2 (en) 2018-06-28 2019-06-18 A timekeeper that is a pocket watch in detail equipped with at least one lid
RU2019119830A RU2720649C1 (en) 2018-06-28 2019-06-26 Clock, in particular pocket watch, containing at least one cover
CN201910568306.XA CN110658711B (en) 2018-06-28 2019-06-27 Timepiece, in particular pocket watch, equipped with at least one cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18180556.5A EP3588199B1 (en) 2018-06-28 2018-06-28 Timepiece, in particular a pocket watch, equipped with at least one cover

Publications (2)

Publication Number Publication Date
EP3588199A1 EP3588199A1 (en) 2020-01-01
EP3588199B1 true EP3588199B1 (en) 2024-02-21

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Application Number Title Priority Date Filing Date
EP18180556.5A Active EP3588199B1 (en) 2018-06-28 2018-06-28 Timepiece, in particular a pocket watch, equipped with at least one cover

Country Status (5)

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US (1) US11442411B2 (en)
EP (1) EP3588199B1 (en)
JP (1) JP6826159B2 (en)
CN (1) CN110658711B (en)
RU (1) RU2720649C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3754434A1 (en) 2019-06-17 2020-12-23 Omega SA Timepiece, in particular a pocket watch, equipped with at least one cover
CN112213940B (en) * 2020-09-30 2021-09-28 西安易朴通讯技术有限公司 Wearable device
CN215954071U (en) * 2021-10-25 2022-03-04 东莞市正励信精密五金有限公司 Electronic watch convenient to adjust rotatory crown
USD1025790S1 (en) * 2023-03-10 2024-05-07 Cartier International Ag Clock

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Publication number Priority date Publication date Assignee Title
US296631A (en) * 1884-04-08 Chaeles schtjetz
CH13539A (en) * 1897-03-20 1897-07-15 Walther Zimmerli Mechanism for opening the two spring lids on pocket watches
US780287A (en) * 1901-11-19 1905-01-17 Harry P Hardy Watchcase.
US2547991A (en) * 1949-01-26 1951-04-10 Witbrod Fred John Holder for wrist watch, pocket watch, indicator, and the like
CH571739B5 (en) * 1972-09-28 1976-01-15 Graber S Manufacture De Boites
JP2523582Y2 (en) * 1990-11-26 1997-01-29 シチズン時計株式会社 Structure of watch with lid
CH689338A5 (en) 1996-01-29 1999-02-26 Patek Philippe Sa Pocket watch having release mechanism for two covers
US6322246B1 (en) * 1999-09-07 2001-11-27 Wing Root Limited Water-resistant movement holder for a pocket watch
CH698912B1 (en) * 2006-03-30 2009-12-15 Richemont Int Sa Timepiece e.g. pocket watch or wristwatch, has watch case mounted on cradle using slides and pivots to allow case to be positioned in two service positions, and manual locking device manually locking case in cradle in service positions
JP5285546B2 (en) * 2009-08-28 2013-09-11 セイコーインスツル株式会社 Hand-wound portable watch and operating method of crown provided in this watch
EP2309349B1 (en) * 2009-10-12 2013-07-24 Bovet Fleurier SA Case for a timepiece with multiple configurations
CN203414738U (en) * 2013-08-12 2014-01-29 孔令俊 Watch capable of changing various watch bottom shells
TWI571711B (en) * 2015-08-14 2017-02-21 和碩聯合科技股份有限公司 Watch

Also Published As

Publication number Publication date
US20200004203A1 (en) 2020-01-02
JP6826159B2 (en) 2021-02-03
CN110658711B (en) 2021-03-23
JP2020003483A (en) 2020-01-09
US11442411B2 (en) 2022-09-13
EP3588199A1 (en) 2020-01-01
CN110658711A (en) 2020-01-07
RU2720649C1 (en) 2020-05-12

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