EP3561608B1 - Clip for securing a band to a watch provided with two retractable pivots - Google Patents

Clip for securing a band to a watch provided with two retractable pivots Download PDF

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Publication number
EP3561608B1
EP3561608B1 EP18168777.3A EP18168777A EP3561608B1 EP 3561608 B1 EP3561608 B1 EP 3561608B1 EP 18168777 A EP18168777 A EP 18168777A EP 3561608 B1 EP3561608 B1 EP 3561608B1
Authority
EP
European Patent Office
Prior art keywords
pivot
bar
hollow body
groove
inner tube
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
EP18168777.3A
Other languages
German (de)
French (fr)
Other versions
EP3561608A1 (en
Inventor
François Maire
Jean-Marc Von Allmen
Jonathan Vonlanthen
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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 Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP18168777.3A priority Critical patent/EP3561608B1/en
Priority to JP2019060144A priority patent/JP6749450B2/en
Priority to US16/372,796 priority patent/US10935934B2/en
Priority to KR1020190046316A priority patent/KR102230626B1/en
Priority to CN201910323411.7A priority patent/CN110389522B/en
Publication of EP3561608A1 publication Critical patent/EP3561608A1/en
Application granted granted Critical
Publication of EP3561608B1 publication Critical patent/EP3561608B1/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
    • G04B37/00—Cases
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • G04B37/1493—Arrangements for fixing to a bracelet by means of a feather spring (Barette á ressort)
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/14—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps characterised by the way of fastening to a wrist-watch or the like
    • 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
    • G04B37/1486—Arrangements for fixing to a bracelet

Definitions

  • the invention relates to a bar for attaching a bracelet to a watch.
  • the invention also relates to a wristwatch comprising at least one such bar.
  • the spring bar is for example provided at its ends with two pivots, one of which is retractable to allow the bracelet and the watch to be separated.
  • the spring bar is inserted in a loop of the bracelet, and each pivot is intended to be introduced into a corresponding housing of a respective horn of the watch case, allowing the bracelet to be attached to the watch.
  • Such a bar is for example described in the patent document CH 327838 A .
  • the bar comprises a hollow body provided with a longitudinal groove; two pivots arranged in the hollow body; a spring arranged in the hollow body, resting between the pivots; and a lug.
  • the two pivots are able to slide in a respective end of the hollow body.
  • the spring pushes back the pivots to make their outer ends penetrate each into corresponding housings of the lugs of the watch case.
  • the lug is integral with one of the pivots and extends through the longitudinal groove.
  • the lug is able to slide along the longitudinal groove, allowing the pivot to which it is secured to slide in the hollow body.
  • the lug can be actuated via a specific tool, which a user introduces into one end of the bracelet to move the lug against the action of the spring and make the pivot come out of the corresponding housing of the watch case horn.
  • Other fixing bars provided with lugs which can slide in a groove are disclosed in the documents. US2014 / 250637A1 , DE202010013569U1 , EP0089166A1 and the patent US9314071 B2 .
  • a drawback of such a spring bar is that it does not allow a user to be able to easily retract the two pivots in a single movement, and without tools.
  • the use of such a bar is therefore restrictive for a user, and does not allow the latter to easily separate the bracelet and the watch.
  • the object of the invention is therefore to provide a bar for fixing a bracelet to a watch, allowing a user to be able to easily retract the two pivots in a single movement, preferably with a single finger, and without tools. .
  • the invention relates to a bar for attaching a bracelet to a watch, which comprises the features mentioned in independent claim 1.
  • An advantage of the bar according to the invention lies in the fact that it comprises a hollow internal tube arranged in the hollow body and configured to cooperate with the first pivot and the second pivot.
  • the second pivot and the spring are inserted into the hollow inner tube. Thanks to the fact that the hollow body and the hollow inner tube are configured so that a displacement of the lug along the longitudinal groove towards the second pivot causes a displacement of the second pivot, in the hollow inner tube, towards the lug , the user can easily retract the two pivots by manual action on the lug, with the movement of a finger, and without tools.
  • the lug being integral with the first pivot, this action by the user tends to bring the first and second pivots together inside the hollow body.
  • Such a bar according to the invention is also simple to manufacture and to assemble.
  • the hollow internal tube comprises, on the side of the second pivot, a first helical groove;
  • the hollow body comprises, on the side of the second pivot, an additional groove;
  • the axis further comprises a tenon integral with the second pivot, the tenon extending through the first helical groove and through the additional groove of the hollow body, and being able to slide along said first helical groove and said additional groove;
  • the hollow body and the hollow internal tube being configured so that a displacement of the lug along the longitudinal groove towards the tenon causes a displacement of the tenon along the additional groove towards the lug, so as to bring the first and second pivots inside the hollow body.
  • the additional groove of the hollow body is a second helical groove, the second helical groove having a length less than that of the first helical groove, the helicoid defined by the second helical groove having a angle of inclination, with respect to a plane perpendicular to a longitudinal direction along which the hollow inner tube extends, less than an angle of inclination formed by the helicoid defined by the first helical groove with respect to this same plane.
  • the additional groove of the hollow body is a second longitudinal groove; and the hollow inner tube comprises, on the side opposite to the second pivot, a second helical groove, the lug further extending through the second helical groove and being able to slide along the second helical groove, the second helical groove having a length greater than that of the first helical groove, the helicoid defined by the second helical groove winding on the hollow inner tube in a direction opposite to that of the helical defined by the first helical groove.
  • the invention also relates to a wristwatch comprising at least one fixing bar described above, and which comprises the characteristics mentioned in dependent claim 11.
  • the figures 1 to 3 show a bar 1 for fixing a bracelet to a watch according to a first embodiment of the invention.
  • the bracelet and the watch are not shown in the figures for reasons of clarity.
  • the bracelet is for example made of leather, metal, a ceramic material, or even another material, without this being limiting in the context of the present invention.
  • the bar 1 comprises a hollow body 2, a first pivot 4 arranged in the hollow body 2, and a pin 6 arranged in the hollow body 2 and provided with a second pivot 8.
  • the bar 1 is intended to be inserted into a loop. of the bracelet, each of the first and second pivots 4, 8 being introduced into a corresponding housing of a respective horn of the watch case, allowing the bracelet to be attached to the watch.
  • the bar 1 further comprises a spring 10, a lug 12 and a hollow inner tube 14 provided with a helical groove 22.
  • the spring 10 and the hollow inner tube 14 are arranged in the hollow body 2.
  • Each of the first and second pivots 4, 8 is able to slide in a respective end 15A, 15B of the hollow body 2.
  • the hollow body 2 is provided, on the side of the first pivot 4, with a longitudinal groove 16, the longitudinal direction being taken as the greatest direction in which the hollow body 2 extends.
  • the longitudinal groove 16 forms an opening in the surface of the hollow body 2.
  • the hollow body 2 further comprises, on the side of the second pivot 8, an additional groove 18.
  • the additional groove 18 is a helical groove.
  • the helical groove 18 forms an opening in the surface of the hollow body 2.
  • the helical groove 18 of the hollow body 2 has a length less than that of the helical groove 22 of the hollow inner tube 14.
  • the helicoid defined by the groove helical 18 of the hollow body 2 has an angle of inclination, with respect to a plane P1 perpendicular to the longitudinal direction in which the hollow inner tube 14 extends, less than an angle of inclination formed by the helicoid defined by the helical groove 22 of the hollow inner tube 14 relative to the plane P1.
  • the helicoid defined by the helical groove 22 winds on the hollow inner tube 14 in the same direction as the helicoid defined by the helical groove 18 on the hollow body 2.
  • the axis 6 further comprises a tenon 20 integral with the second pivot 8.
  • the tenon 20 extends from an outer surface of the second pivot 8, substantially perpendicular to the longitudinal direction in which the second pivot 8 extends.
  • the second pivot 8 and the spring 10 are inserted into the hollow internal tube 14.
  • the spring 10 is held in abutment between the first and second pivots 4, 8.
  • the spring 10 is for example a coil spring.
  • the lug 12 extends from an outer surface of the hollow inner tube 14, substantially perpendicular to the longitudinal direction in which the hollow inner tube 14 extends.
  • the lug 12 extends through the longitudinal groove 16 and is suitable to slide along this longitudinal groove 16.
  • the lug 12 is intended to be manipulated by a user of the watch, and thus constitutes an actuator of the bar 1, allowing the retraction of the first and second pivots 4, 8 as will be detailed later.
  • the hollow internal tube 14 is configured to cooperate with the first pivot 4 and with the second pivot 8. More precisely, the hollow internal tube 14 comprises, on the side of the second pivot 8, a helical groove 22.
  • the helical groove 22 forms an opening in the surface of the hollow inner tube 14.
  • the tenon 20, integral with the second pivot 8, extends both through the helical groove 22 of the hollow inner tube 14, and through the helical groove 18 of the hollow body 2, and is able to slide along these two grooves 18, 22.
  • the first pivot 4, the lug 12, and the hollow inner tube 14 are preferably formed of a one and the same piece of material.
  • the first pivot 4 forms an end 24A of the hollow internal tube 14, located opposite the second pivot 8 with respect to the spring 10.
  • the hollow body 2 and the hollow internal tube 14 are thus configured so that a displacement of the lug 12 along the longitudinal groove 16 towards the second pivot 8 causes a displacement of the second pivot 8, in the hollow internal tube 14, towards the lug 12.
  • the hollow body 2 and the hollow internal tube 14 are configured so that a displacement of the lug 12 along the longitudinal groove 16 towards the tenon 20 causes a displacement of the tenon 20 along the helical groove 18 towards the lug 12.
  • the lug 12 being integral with the first pivot 4, and the tenon 20 being integral with the second pivot 8, this causes the first and second pivots 4, 8 to come together inside the hollow body 2.
  • the lug 12 thus constitutes a maneuvering member for a user of the watch to retract the first and second pivots 4, 8 against the action of the spring 10.
  • the figure 2 shows the bar 1 in the rest position, that is to say with the first and second pivots 4, 8 deployed outside the hollow body 2.
  • the spring 10 indeed pushes the first and second pivots 4, 8 in opposite directions, via the hollow internal tube 14 on the one hand and the axis 6 on the other hand. This allows the first and second pivots 4, 8 to be introduced into corresponding housings of the horns of the watch case, and thus to fix the strap to the watch.
  • the spring 10 exerts a force tending to push the hollow internal tube 14 and the axis 6, and therefore the first and second pivots 4, 8, in opposite directions. The rest position of the bar 1 is then found.
  • a bar 30 for fixing a bracelet to a watch according to a second embodiment of the invention will now be described with reference to figures 4 to 6 .
  • the bracelet and the watch are not shown in the figures for reasons of clarity.
  • the bracelet is for example made of leather, metal, a ceramic material, or even another material, without this being limiting in the context of the present invention.
  • the bar 30 comprises a hollow body 32, a first pin 33 arranged in the hollow body 32 and provided with a first pivot 34, and a second pin 36 arranged in the hollow body 32 and provided with a second pivot 38.
  • the bar 30 is intended to be inserted in a loop of the bracelet, each of the first and second pivots 34, 38 being introduced into a corresponding housing of a respective horn of the watch case, allowing the bracelet to be attached to the watch.
  • the bar 30 further comprises a spring 40 and a hollow inner tube 44. The spring 40 and the hollow inner tube 44 are arranged in the hollow body 32.
  • Each of the first and second pivots 34, 38 is able to slide in a respective end 15A, 15B of the hollow body 32.
  • the hollow body 32 is provided, on the side of the first pivot 34, with a first groove longitudinal 46, the longitudinal direction being taken as the greatest direction in which the hollow body 32 extends.
  • the first longitudinal groove 46 forms an opening in the surface of the hollow body 32.
  • the hollow body 32 further comprises, on the side of the second pivot 38, an additional groove 48.
  • the additional groove 48 is a longitudinal groove, thus forming a second longitudinal groove 48 for the hollow body 32.
  • the second longitudinal groove 48 forms an opening in the surface of the hollow body 32.
  • the second longitudinal groove 48 of the hollow body 32 has a length less than that of the first longitudinal groove 46.
  • the first axis 33 further comprises a lug 52 integral with the first pivot 34.
  • the lug 52 extends from an outer surface of the first pivot 34, substantially perpendicular to the longitudinal direction in which the first pivot 34 extends.
  • lug 52 is intended to be manipulated by a user of the watch, and thus constitutes an actuator of the bar 30, allowing the retraction of the first and second pivots 34, 38 as will be detailed below.
  • the second axis 36 further comprises a tenon 54 integral with the second pivot 38.
  • the tenon 54 extends from an exterior surface of the second pivot 38, substantially perpendicular to the longitudinal direction in which the second pivot 38 extends.
  • the first pivot 34, the second pivot 38 and the spring 40 are inserted into the hollow inner tube 44.
  • the spring 40 is held in abutment between the first and second pivots 34, 38.
  • the spring 10 is for example a coil spring.
  • the hollow internal tube 44 is configured to cooperate with the first pivot 34 and with the second pivot 38. More precisely, the hollow internal tube 44 comprises, on the side of the first pivot 34, a first helical groove 56 and, on the side of the second pivot 38, a second helical groove 58.
  • the first and second helical grooves 56, 58 form openings respective ones in the surface of the hollow inner tube 44.
  • the first helical groove 56 has a length greater than that of the second helical groove 58.
  • the helicoid defined by the first helical groove 56 winds on the hollow inner tube 44 in one direction. opposite to that of the helicoid defined by the second helical groove 58.
  • the helicoid defined by the first helical groove 56 has an angle of inclination, with respect to a plane P1 perpendicular to the longitudinal direction in which s' extends the hollow internal tube 44, the absolute value of which is different from, for example greater than, the absolute value of an angle of inclination formed by the helicoid defined by the second helical groove 58 with respect to the plane P1.
  • the lug 52 integral with the first pivot 34, extends both through the first helical groove 56 of the hollow internal tube 44, and through the first longitudinal groove 46 of the hollow body 32, and is able to slide along these two grooves 46, 56.
  • the tenon 54, integral with the second pivot 38 extends both through the second helical groove 58 of the hollow internal tube 44, and through the second longitudinal groove 48 of the hollow body 32, and is able to slide along these two grooves 48, 58.
  • the hollow inner tube 44 is able to rotate around its longitudinal direction inside the hollow body 32.
  • the hollow body 32 and the hollow internal tube 44 are thus configured so that a displacement of the lug 52 along the first longitudinal groove 56 towards the second pivot 38 causes a displacement of the second pivot 38, in the hollow internal tube 44. , towards the lug 52.
  • the hollow body 32 and the hollow internal tube 44 are configured so that a displacement of the lug 52 along the first longitudinal groove 46 towards the tenon 54 causes a displacement of the tenon 54 along the second longitudinal groove 48 towards the lug 52.
  • the lug 52 being integral with the first pivot 34, and the tenon 54 being integral with the second pivot 38, this causes the first and second pivots 34, 38 to come together inside the hollow body 32.
  • the lug 52 thus constitutes a maneuvering member for a user of the watch to retract the first and second pivots 34, 38 against the action spring 40.
  • the figure 5 shows the bar 30 in the rest position, that is to say with the first and second pivots 34, 38 deployed outside the hollow body 32.
  • the spring 40 indeed pushes the first and second pivots 34, 38 in opposite directions, via the first and second axes 33, 36. This allows the first and second pivots 34, 38 to be introduced into corresponding housings of the horns of the watch case, and thus to fix the strap to the watch.
  • This friction causes the tenon 54 to move longitudinally along the second longitudinal groove 48 of the hollow body 32, towards the center of the bar 30. As seen in the figure. figure 6 , this movement thus retracts the second pivot 38 and then releases the bar 30 from its location between the horns of the watch case.
  • the spring 40 exerts a force tending to push back the first and second axes 33, 36, and therefore the first and second pivots 34, 38, in opposite directions. The rest position of the bar 30 is then regained.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Buckles (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne une barrette pour la fixation d'un bracelet à une montre.The invention relates to a bar for attaching a bracelet to a watch.

L'invention concerne également une montre-bracelet comportant au moins une telle barrette.The invention also relates to a wristwatch comprising at least one such bar.

ETAT DE LA TECHNIQUESTATE OF THE ART

Dans le domaine des montres-bracelets, il est connu de fixer le bracelet à la montre au moyen d'au moins une barrette à ressort. La barrette à ressort est par exemple munie à ses extrémités de deux pivots dont l'un est rétractable pour permettre de désolidariser le bracelet et la montre. La barrette à ressort est insérée dans un passant du bracelet, et chaque pivot est destiné à s'introduire dans un logement correspondant d'une corne respective de la boîte de montre, permettant la fixation du bracelet à la montre. Une telle barrette est par exemple décrite dans le document brevet CH 327838 A . La barrette comprend un corps creux muni d'une rainure longitudinale ; deux pivots agencés dans le corps creux ; un ressort disposé dans le corps creux, en appui entre les pivots ; et un ergot. Les deux pivots sont aptes à coulisser dans une extrémité respective du corps creux. Le ressort repousse les pivots pour faire pénétrer leurs extrémités externes chacune dans des logements correspondants des cornes de la boîte de montre. L'ergot est solidaire d'un des pivots et s'étend à travers la rainure longitudinale. L'ergot est apte à coulisser le long de la rainure longitudinale, permettant au pivot auquel il est solidarisé de coulisser dans le corps creux. L'ergot est actionnable via un outil spécifique, qu'un utilisateur introduit dans une extrémité du bracelet pour déplacer l'ergot contre l'action du ressort et faire sortir le pivot du logement correspondant de la corne de boîte de montre. D'autres barrettes de fixation pourvues d'ergot pouvant coulisser dans une rainure sont divulguées dans les documents US2014/250637A1 , DE202010013569U1 , EP0089166A1 et le brevet US9314071 B2 .In the field of wristwatches, it is known practice to fix the bracelet to the watch by means of at least one spring bar. The spring bar is for example provided at its ends with two pivots, one of which is retractable to allow the bracelet and the watch to be separated. The spring bar is inserted in a loop of the bracelet, and each pivot is intended to be introduced into a corresponding housing of a respective horn of the watch case, allowing the bracelet to be attached to the watch. Such a bar is for example described in the patent document CH 327838 A . The bar comprises a hollow body provided with a longitudinal groove; two pivots arranged in the hollow body; a spring arranged in the hollow body, resting between the pivots; and a lug. The two pivots are able to slide in a respective end of the hollow body. The spring pushes back the pivots to make their outer ends penetrate each into corresponding housings of the lugs of the watch case. The lug is integral with one of the pivots and extends through the longitudinal groove. The lug is able to slide along the longitudinal groove, allowing the pivot to which it is secured to slide in the hollow body. The lug can be actuated via a specific tool, which a user introduces into one end of the bracelet to move the lug against the action of the spring and make the pivot come out of the corresponding housing of the watch case horn. Other fixing bars provided with lugs which can slide in a groove are disclosed in the documents. US2014 / 250637A1 , DE202010013569U1 , EP0089166A1 and the patent US9314071 B2 .

Toutefois, un inconvénient d'une telle barrette à ressort est qu'elle ne permet pas à un utilisateur de pouvoir rétracter facilement les deux pivots d'un seul mouvement, et sans outil. L'utilisation d'une telle barrette est donc contraignante pour un utilisateur, et ne permet pas à ce dernier de désolidariser facilement le bracelet et la montre.However, a drawback of such a spring bar is that it does not allow a user to be able to easily retract the two pivots in a single movement, and without tools. The use of such a bar is therefore restrictive for a user, and does not allow the latter to easily separate the bracelet and the watch.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a donc pour but de fournir une barrette pour la fixation d'un bracelet à une montre, permettant à un utilisateur de pouvoir rétracter facilement les deux pivots d'un seul mouvement, de préférence d'un seul doigt, et sans outil.The object of the invention is therefore to provide a bar for fixing a bracelet to a watch, allowing a user to be able to easily retract the two pivots in a single movement, preferably with a single finger, and without tools. .

A cet effet, l'invention concerne une barrette pour la fixation d'un bracelet à une montre, qui comprend les caractéristiques mentionnées dans la revendication indépendante 1.To this end, the invention relates to a bar for attaching a bracelet to a watch, which comprises the features mentioned in independent claim 1.

Des formes particulières de la barrette sont définies dans les revendications dépendantes 2 à 10.Particular shapes of the bar are defined in dependent claims 2 to 10.

Un avantage de la barrette selon l'invention réside dans le fait qu'elle comprend un tube interne creux agencé dans le corps creux et configuré pour coopérer avec le premier pivot et le second pivot. Le second pivot et le ressort sont insérés dans le tube interne creux. Grâce au fait que le corps creux et le tube interne creux sont configurés pour qu'un déplacement de l'ergot le long de la rainure longitudinale vers le second pivot entraine un déplacement du second pivot, dans le tube interne creux, vers l'ergot, l'utilisateur peut facilement rétracter les deux pivots par action manuelle sur l'ergot, du seul mouvement d'un doigt, et sans outil. En effet, l'ergot étant solidaire du premier pivot, cette action de l'utilisateur tend à rapprocher les premier et second pivots à l'intérieur du corps creux.An advantage of the bar according to the invention lies in the fact that it comprises a hollow internal tube arranged in the hollow body and configured to cooperate with the first pivot and the second pivot. The second pivot and the spring are inserted into the hollow inner tube. Thanks to the fact that the hollow body and the hollow inner tube are configured so that a displacement of the lug along the longitudinal groove towards the second pivot causes a displacement of the second pivot, in the hollow inner tube, towards the lug , the user can easily retract the two pivots by manual action on the lug, with the movement of a finger, and without tools. In fact, the lug being integral with the first pivot, this action by the user tends to bring the first and second pivots together inside the hollow body.

Une telle barrette selon l'invention est en outre simple à fabriquer et à assembler.Such a bar according to the invention is also simple to manufacture and to assemble.

Avantageusement, le tube interne creux comporte, du côté du second pivot, une première rainure hélicoïdale ; le corps creux comporte, du côté du second pivot, une rainure additionnelle ; et l'axe comprend en outre un tenon solidaire du second pivot, le tenon s'étendant à travers la première rainure hélicoïdale et à travers la rainure additionnelle du corps creux, et étant apte à coulisser le long de ladite première rainure hélicoïdale et de ladite rainure additionnelle ; le corps creux et le tube interne creux étant configurés pour qu'un déplacement de l'ergot le long de la rainure longitudinale vers le tenon entraine un déplacement du tenon le long de la rainure additionnelle vers l'ergot, de sorte à rapprocher les premier et second pivots à l'intérieur du corps creux.Advantageously, the hollow internal tube comprises, on the side of the second pivot, a first helical groove; the hollow body comprises, on the side of the second pivot, an additional groove; and the axis further comprises a tenon integral with the second pivot, the tenon extending through the first helical groove and through the additional groove of the hollow body, and being able to slide along said first helical groove and said additional groove; the hollow body and the hollow internal tube being configured so that a displacement of the lug along the longitudinal groove towards the tenon causes a displacement of the tenon along the additional groove towards the lug, so as to bring the first and second pivots inside the hollow body.

Selon un premier mode de réalisation de l'invention, la rainure additionnelle du corps creux est une seconde rainure hélicoïdale, la seconde rainure hélicoïdale présentant une longueur inférieure à celle de la première rainure hélicoïdale, l'hélicoïde définie par la seconde rainure hélicoïdale présentant un angle d'inclinaison, par rapport à un plan perpendiculaire à une direction longitudinale selon laquelle s'étend le tube interne creux, inférieur à un angle d'inclinaison formé par l'hélicoïde définie par la première rainure hélicoïdale par rapport à ce même plan.According to a first embodiment of the invention, the additional groove of the hollow body is a second helical groove, the second helical groove having a length less than that of the first helical groove, the helicoid defined by the second helical groove having a angle of inclination, with respect to a plane perpendicular to a longitudinal direction along which the hollow inner tube extends, less than an angle of inclination formed by the helicoid defined by the first helical groove with respect to this same plane.

Selon un deuxième mode de réalisation de l'invention, la rainure additionnelle du corps creux est une seconde rainure longitudinale ; et le tube interne creux comporte, du côté opposé au second pivot, une seconde rainure hélicoïdale, l'ergot s'étendant en outre à travers la seconde rainure hélicoïdale et étant apte à coulisser le long de la seconde rainure hélicoïdale, la seconde rainure hélicoïdale présentant une longueur supérieure à celle de la première rainure hélicoïdale, l'hélicoïde définie par la seconde rainure hélicoïdale s'enroulant sur le tube interne creux dans un sens opposé à celui de l'hélicoïde définie par la première rainure hélicoïdale.According to a second embodiment of the invention, the additional groove of the hollow body is a second longitudinal groove; and the hollow inner tube comprises, on the side opposite to the second pivot, a second helical groove, the lug further extending through the second helical groove and being able to slide along the second helical groove, the second helical groove having a length greater than that of the first helical groove, the helicoid defined by the second helical groove winding on the hollow inner tube in a direction opposite to that of the helical defined by the first helical groove.

A cet effet, l'invention concerne également une montre-bracelet comprenant au moins une barrette de fixation décrite ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 11.To this end, the invention also relates to a wristwatch comprising at least one fixing bar described above, and which comprises the characteristics mentioned in dependent claim 11.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, avantages et caractéristiques de la barrette de fixation d'un bracelet à une montre selon l'invention, ainsi que de la montre-bracelet la comprenant, apparaîtront mieux dans la description suivante sur la base d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :

  • la figure 1 est une vue en perspective éclatée d'une barrette de fixation d'un bracelet à une montre selon un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue en perspective de la barrette de la figure 1, une fois assemblée, dans une position de repos de la barrette ;
  • la figure 3 est une vue analogue à celle de la figure 2, dans une position d'actionnement de la barrette ;
  • la figure 4 est une vue en perspective éclatée d'une barrette de fixation d'un bracelet à une montre selon un deuxième mode de réalisation de l'invention ;
  • la figure 5 une vue en perspective de la barrette de la figure 4, une fois assemblée, dans une position de repos de la barrette ; et
  • la figure 6 est une vue analogue à celle de la figure 5, dans une position d'actionnement de la barrette.
The aims, advantages and characteristics of the bar for fixing a bracelet to a watch according to the invention, as well as of the wristwatch comprising it, will appear better in the following description on the basis of at least one form of non-limiting execution illustrated by the drawings in which:
  • the figure 1 is an exploded perspective view of a bar for attaching a bracelet to a watch according to a first embodiment of the invention;
  • the figure 2 is a perspective view of the bar of the figure 1 , once assembled, in a rest position of the bar;
  • the figure 3 is a view similar to that of the figure 2 , in an actuation position of the bar;
  • the figure 4 is an exploded perspective view of a bar for attaching a bracelet to a watch according to a second embodiment of the invention;
  • the figure 5 a perspective view of the bar of the figure 4 , once assembled, in a rest position of the bar; and
  • the figure 6 is a view similar to that of the figure 5 , in an actuation position of the bar.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Les figures 1 à 3 représentent une barrette 1 de fixation d'un bracelet à une montre selon un premier mode de réalisation de l'invention. Le bracelet et la montre ne sont pas représentés sur les figures pour des raisons de clarté. Le bracelet est par exemple constitué de cuir, de métal, d'un matériau céramique, ou bien encore d'une autre matière, sans que cela ne soit limitatif dans le cadre de la présente invention.The figures 1 to 3 show a bar 1 for fixing a bracelet to a watch according to a first embodiment of the invention. The bracelet and the watch are not shown in the figures for reasons of clarity. The bracelet is for example made of leather, metal, a ceramic material, or even another material, without this being limiting in the context of the present invention.

La barrette 1 comprend un corps creux 2, un premier pivot 4 agencé dans le corps creux 2, et un axe 6 agencé dans le corps creux 2 et muni d'un second pivot 8. La barrette 1 est destinée à être insérée dans un passant du bracelet, chacun des premier et second pivots 4, 8 venant s'introduire dans un logement correspondant d'une corne respective de la boîte de montre, permettant la fixation du bracelet à la montre. La barrette 1 comprend en outre un ressort 10, un ergot 12 et un tube interne creux 14 muni d'une rainure hélicoïdale 22. Le ressort 10 et le tube interne creux 14 sont agencés dans le corps creux 2.The bar 1 comprises a hollow body 2, a first pivot 4 arranged in the hollow body 2, and a pin 6 arranged in the hollow body 2 and provided with a second pivot 8. The bar 1 is intended to be inserted into a loop. of the bracelet, each of the first and second pivots 4, 8 being introduced into a corresponding housing of a respective horn of the watch case, allowing the bracelet to be attached to the watch. The bar 1 further comprises a spring 10, a lug 12 and a hollow inner tube 14 provided with a helical groove 22. The spring 10 and the hollow inner tube 14 are arranged in the hollow body 2.

Chacun des premier et second pivots 4, 8 est apte à coulisser dans une extrémité respective 15A, 15B du corps creux 2. Le corps creux 2 est muni, du côté du premier pivot 4, d'une rainure longitudinale 16, la direction longitudinale étant prise comme la plus grande direction selon laquelle le corps creux 2 s'étend. La rainure longitudinale 16 forme une ouverture dans la surface du corps creux 2. Le corps creux 2 comporte en outre, du côté du second pivot 8, une rainure additionnelle 18. Dans le mode de réalisation particulier illustré sur les figures 1 à 3, la rainure additionnelle 18 est une rainure hélicoïdale. La rainure hélicoïdale 18 forme une ouverture dans la surface du corps creux 2. La rainure hélicoïdale 18 du corps creux 2 présente une longueur inférieure à celle de la rainure hélicoïdale 22 du tube interne creux 14. En outre, l'hélicoïde définie par la rainure hélicoïdale 18 du corps creux 2 présente un angle d'inclinaison, par rapport à un plan P1 perpendiculaire à la direction longitudinale selon laquelle s'étend le tube interne creux 14, inférieur à un angle d'inclinaison formé par l'hélicoïde définie par la rainure hélicoïdale 22 du tube interne creux 14 par rapport au plan P1. De préférence, comme illustré sur la figure 1, l'hélicoïde définie par la rainure hélicoïdale 22 s'enroule sur le tube interne creux 14 dans le même sens que l'hélicoïde définie par la rainure hélicoïdale 18 sur le corps creux 2.Each of the first and second pivots 4, 8 is able to slide in a respective end 15A, 15B of the hollow body 2. The hollow body 2 is provided, on the side of the first pivot 4, with a longitudinal groove 16, the longitudinal direction being taken as the greatest direction in which the hollow body 2 extends. The longitudinal groove 16 forms an opening in the surface of the hollow body 2. The hollow body 2 further comprises, on the side of the second pivot 8, an additional groove 18. In the particular embodiment illustrated in the figures. figures 1 to 3 , the additional groove 18 is a helical groove. The helical groove 18 forms an opening in the surface of the hollow body 2. The helical groove 18 of the hollow body 2 has a length less than that of the helical groove 22 of the hollow inner tube 14. Further, the helicoid defined by the groove helical 18 of the hollow body 2 has an angle of inclination, with respect to a plane P1 perpendicular to the longitudinal direction in which the hollow inner tube 14 extends, less than an angle of inclination formed by the helicoid defined by the helical groove 22 of the hollow inner tube 14 relative to the plane P1. Preferably, as illustrated on figure 1 , the helicoid defined by the helical groove 22 winds on the hollow inner tube 14 in the same direction as the helicoid defined by the helical groove 18 on the hollow body 2.

L'axe 6 comprend en outre un tenon 20 solidaire du second pivot 8. Le tenon 20 s'étend depuis une surface extérieure du second pivot 8, sensiblement perpendiculairement à la direction longitudinale selon laquelle s'étend le second pivot 8. Le second pivot 8 et le ressort 10 sont insérés dans le tube interne creux 14. Le ressort 10 est maintenu en appui entre les premier et second pivots 4, 8. Comme illustré sur la figure 1, le ressort 10 est par exemple un ressort à boudins.The axis 6 further comprises a tenon 20 integral with the second pivot 8. The tenon 20 extends from an outer surface of the second pivot 8, substantially perpendicular to the longitudinal direction in which the second pivot 8 extends. The second pivot 8 and the spring 10 are inserted into the hollow internal tube 14. The spring 10 is held in abutment between the first and second pivots 4, 8. As illustrated in figure 1 , the spring 10 is for example a coil spring.

L'ergot 12 s'étend depuis une surface extérieure du tube interne creux 14, sensiblement perpendiculairement à la direction longitudinale selon laquelle s'étend le tube interne creux 14. L'ergot 12 s'étend à travers la rainure longitudinale 16 et est apte à coulisser le long de cette rainure longitudinale 16. L'ergot 12 est destiné à être manipulé par un utilisateur de la montre, et constitue ainsi un organe d'actionnement de la barrette 1, permettant la rétractation des premier et second pivots 4, 8 comme cela sera détaillé par la suite.The lug 12 extends from an outer surface of the hollow inner tube 14, substantially perpendicular to the longitudinal direction in which the hollow inner tube 14 extends. The lug 12 extends through the longitudinal groove 16 and is suitable to slide along this longitudinal groove 16. The lug 12 is intended to be manipulated by a user of the watch, and thus constitutes an actuator of the bar 1, allowing the retraction of the first and second pivots 4, 8 as will be detailed later.

Le tube interne creux 14 est configuré pour coopérer avec le premier pivot 4 et avec le second pivot 8. Plus précisément, le tube interne creux 14 comporte, du côté du second pivot 8, une rainure hélicoïdale 22. La rainure hélicoïdale 22 forme une ouverture dans la surface du tube interne creux 14. Le tenon 20, solidaire du second pivot 8, s'étend à la fois à travers la rainure hélicoïdale 22 du tube interne creux 14, et à travers la rainure hélicoïdale 18 du corps creux 2, et est apte à coulisser le long de ces deux rainures 18, 22. Par ailleurs, comme illustré sur la figure 1, le premier pivot 4, l'ergot 12, et le tube interne creux 14 sont de préférence formés d'une seule et même pièce de matière. Le premier pivot 4 forme une extrémité 24A du tube interne creux 14, située à l'opposé du second pivot 8 par rapport au ressort 10.The hollow internal tube 14 is configured to cooperate with the first pivot 4 and with the second pivot 8. More precisely, the hollow internal tube 14 comprises, on the side of the second pivot 8, a helical groove 22. The helical groove 22 forms an opening in the surface of the hollow inner tube 14. The tenon 20, integral with the second pivot 8, extends both through the helical groove 22 of the hollow inner tube 14, and through the helical groove 18 of the hollow body 2, and is able to slide along these two grooves 18, 22. Furthermore, as illustrated in figure 1 , the first pivot 4, the lug 12, and the hollow inner tube 14 are preferably formed of a one and the same piece of material. The first pivot 4 forms an end 24A of the hollow internal tube 14, located opposite the second pivot 8 with respect to the spring 10.

Le corps creux 2 et le tube interne creux 14 sont ainsi configurés pour qu'un déplacement de l'ergot 12 le long de la rainure longitudinale 16 vers le second pivot 8 entraine un déplacement du second pivot 8, dans le tube interne creux 14, vers l'ergot 12. Ceci permet de rapprocher les premier et second pivots 4, 8 à l'intérieur du corps creux 2, comme visible sur les figures 2 et 3. Plus précisément, le corps creux 2 et le tube interne creux 14 sont configurés pour qu'un déplacement de l'ergot 12 le long de la rainure longitudinale 16 vers le tenon 20 entraine un déplacement du tenon 20 le long de la rainure hélicoïdale 18 vers l'ergot 12. L'ergot 12 étant solidaire du premier pivot 4, et le tenon 20 étant solidaire du second pivot 8, ceci entraine un rapprochement des premier et second pivots 4, 8 à l'intérieur du corps creux 2. L'ergot 12 constitue ainsi un organe de manœuvre pour un utilisateur de la montre pour rétracter les premier et second pivots 4, 8 contre l'action du ressort 10.The hollow body 2 and the hollow internal tube 14 are thus configured so that a displacement of the lug 12 along the longitudinal groove 16 towards the second pivot 8 causes a displacement of the second pivot 8, in the hollow internal tube 14, towards the lug 12. This makes it possible to bring the first and second pivots 4, 8 together inside the hollow body 2, as can be seen on the figures 2 and 3 . More precisely, the hollow body 2 and the hollow internal tube 14 are configured so that a displacement of the lug 12 along the longitudinal groove 16 towards the tenon 20 causes a displacement of the tenon 20 along the helical groove 18 towards the lug 12. The lug 12 being integral with the first pivot 4, and the tenon 20 being integral with the second pivot 8, this causes the first and second pivots 4, 8 to come together inside the hollow body 2. The lug 12 thus constitutes a maneuvering member for a user of the watch to retract the first and second pivots 4, 8 against the action of the spring 10.

Le fonctionnement de la barrette 1 selon le premier mode de réalisation de l'invention va maintenant être décrit, en référence aux figures 2 et 3.The operation of the bar 1 according to the first embodiment of the invention will now be described, with reference to figures 2 and 3 .

La figure 2 représente la barrette 1 en position de repos, c'est-à-dire avec les premier et second pivots 4, 8 déployés à l'extérieur du corps creux 2. Le ressort 10 pousse en effet les premier et second pivots 4, 8 dans des directions opposées, via le tube interne creux 14 d'une part et l'axe 6 d'autre part. Ceci permet aux premier et second pivots 4, 8 d'être introduits dans des logements correspondants des cornes de la boîte de montre, et de fixer ainsi le bracelet à la montre.The figure 2 shows the bar 1 in the rest position, that is to say with the first and second pivots 4, 8 deployed outside the hollow body 2. The spring 10 indeed pushes the first and second pivots 4, 8 in opposite directions, via the hollow internal tube 14 on the one hand and the axis 6 on the other hand. This allows the first and second pivots 4, 8 to be introduced into corresponding housings of the horns of the watch case, and thus to fix the strap to the watch.

Lorsqu'un utilisateur de la montre pousse l'ergot 12 avec un doigt en direction du centre de la barrette 1, en plus de la rétractation du premier pivot 4, une surface hélicoïdale intérieure 26 de la rainure hélicoïdale 22 du tube interne creux 14, visible sur la figure 1, pousse le tenon 20, et donc le second pivot 8, vers l'extérieur du corps creux 2. Le tenon 20 rencontre alors une surface hélicoïdale extérieure 28 de la rainure hélicoïdale 18 du corps creux 2, visible sur la figure 1, qui, en raison de son inclinaison, tend à faire pivoter l'axe 6 et donc le second pivot 8 sur lui-même et, ce faisant, le fait se déplacer longitudinalement vers le centre de la barrette 1. Comme visible sur la figure 3, ce mouvement rétracte ainsi le second pivot 8 et libère alors la barrette 1 de son emplacement entre les cornes de la boîte de montre.When a user of the watch pushes the lug 12 with a finger towards the center of the bar 1, in addition to the retraction of the first pivot 4, an inner helical surface 26 of the helical groove 22 of the hollow inner tube 14, visible on the figure 1 , push the pin 20, and therefore the second pivot 8, towards the outside of the hollow body 2. The tenon 20 then meets an outer helical surface 28 of the helical groove 18 of the hollow body 2, visible on the figure. figure 1 , which, due to its inclination, tends to cause the axis 6 and therefore the second pivot 8 to pivot on itself and, in doing so, causes it to move longitudinally towards the center of the bar 1. As visible on the figure figure 3 , this movement thus retracts the second pivot 8 and then releases the bar 1 from its location between the horns of the watch case.

Lorsque l'utilisateur de la montre relâche l'ergot 12, le ressort 10 exerce une force tendant à repousser le tube interne creux 14 et l'axe 6, et donc les premier et second pivots 4, 8, dans des directions opposées. La position de repos de la barrette 1 est alors retrouvée.When the user of the watch releases the lug 12, the spring 10 exerts a force tending to push the hollow internal tube 14 and the axis 6, and therefore the first and second pivots 4, 8, in opposite directions. The rest position of the bar 1 is then found.

Une barrette 30 de fixation d'un bracelet à une montre selon un deuxième mode de réalisation de l'invention va maintenant être décrite en référence aux figures 4 à 6. Le bracelet et la montre ne sont pas représentés sur les figures pour des raisons de clarté. Le bracelet est par exemple constitué de cuir, de métal, d'un matériau céramique, ou bien encore d'une autre matière, sans que cela ne soit limitatif dans le cadre de la présente invention.A bar 30 for fixing a bracelet to a watch according to a second embodiment of the invention will now be described with reference to figures 4 to 6 . The bracelet and the watch are not shown in the figures for reasons of clarity. The bracelet is for example made of leather, metal, a ceramic material, or even another material, without this being limiting in the context of the present invention.

La barrette 30 comprend un corps creux 32, un premier axe 33 agencé dans le corps creux 32 et muni d'un premier pivot 34, et un second axe 36 agencé dans le corps creux 32 et muni d'un second pivot 38. La barrette 30 est destinée à être insérée dans un passant du bracelet, chacun des premier et second pivots 34, 38 venant s'introduire dans un logement correspondant d'une corne respective de la boîte de montre, permettant la fixation du bracelet à la montre. La barrette 30 comprend en outre un ressort 40 et un tube interne creux 44. Le ressort 40 et le tube interne creux 44 sont agencés dans le corps creux 32.The bar 30 comprises a hollow body 32, a first pin 33 arranged in the hollow body 32 and provided with a first pivot 34, and a second pin 36 arranged in the hollow body 32 and provided with a second pivot 38. The bar 30 is intended to be inserted in a loop of the bracelet, each of the first and second pivots 34, 38 being introduced into a corresponding housing of a respective horn of the watch case, allowing the bracelet to be attached to the watch. The bar 30 further comprises a spring 40 and a hollow inner tube 44. The spring 40 and the hollow inner tube 44 are arranged in the hollow body 32.

Chacun des premier et second pivots 34, 38 est apte à coulisser dans une extrémité respective 15A, 15B du corps creux 32. Le corps creux 32 est muni, du côté du premier pivot 34, d'une première rainure longitudinale 46, la direction longitudinale étant prise comme la plus grande direction selon laquelle le corps creux 32 s'étend. La première rainure longitudinale 46 forme une ouverture dans la surface du corps creux 32. Le corps creux 32 comporte en outre, du côté du second pivot 38, une rainure additionnelle 48. Dans le mode de réalisation particulier illustré sur les figures 4 à 6, la rainure additionnelle 48 est une rainure longitudinale, formant ainsi une seconde rainure longitudinale 48 pour le corps creux 32. La seconde rainure longitudinale 48 forme une ouverture dans la surface du corps creux 32. De préférence, comme illustré sur les figures 4 à 6, la seconde rainure longitudinale 48 du corps creux 32 présente une longueur inférieure à celle de la première rainure longitudinale 46.Each of the first and second pivots 34, 38 is able to slide in a respective end 15A, 15B of the hollow body 32. The hollow body 32 is provided, on the side of the first pivot 34, with a first groove longitudinal 46, the longitudinal direction being taken as the greatest direction in which the hollow body 32 extends. The first longitudinal groove 46 forms an opening in the surface of the hollow body 32. The hollow body 32 further comprises, on the side of the second pivot 38, an additional groove 48. In the particular embodiment illustrated in the figures figures 4 to 6 , the additional groove 48 is a longitudinal groove, thus forming a second longitudinal groove 48 for the hollow body 32. The second longitudinal groove 48 forms an opening in the surface of the hollow body 32. Preferably, as illustrated in the FIGS. figures 4 to 6 , the second longitudinal groove 48 of the hollow body 32 has a length less than that of the first longitudinal groove 46.

Le premier axe 33 comprend en outre un ergot 52 solidaire du premier pivot 34. L'ergot 52 s'étend depuis une surface extérieure du premier pivot 34, sensiblement perpendiculairement à la direction longitudinale selon laquelle s'étend le premier pivot 34. L'ergot 52 est destiné à être manipulé par un utilisateur de la montre, et constitue ainsi un organe d'actionnement de la barrette 30, permettant la rétractation des premier et second pivots 34, 38 comme cela sera détaillé par la suite.The first axis 33 further comprises a lug 52 integral with the first pivot 34. The lug 52 extends from an outer surface of the first pivot 34, substantially perpendicular to the longitudinal direction in which the first pivot 34 extends. lug 52 is intended to be manipulated by a user of the watch, and thus constitutes an actuator of the bar 30, allowing the retraction of the first and second pivots 34, 38 as will be detailed below.

Le second axe 36 comprend en outre un tenon 54 solidaire du second pivot 38. Le tenon 54 s'étend depuis une surface extérieure du second pivot 38, sensiblement perpendiculairement à la direction longitudinale selon laquelle s'étend le second pivot 38. Le premier pivot 34, le second pivot 38 et le ressort 40 sont insérés dans le tube interne creux 44. Le ressort 40 est maintenu en appui entre les premier et second pivots 34, 38. Comme illustré sur la figure 4, le ressort 10 est par exemple un ressort à boudins.The second axis 36 further comprises a tenon 54 integral with the second pivot 38. The tenon 54 extends from an exterior surface of the second pivot 38, substantially perpendicular to the longitudinal direction in which the second pivot 38 extends. The first pivot 34, the second pivot 38 and the spring 40 are inserted into the hollow inner tube 44. The spring 40 is held in abutment between the first and second pivots 34, 38. As illustrated in FIG. figure 4 , the spring 10 is for example a coil spring.

Le tube interne creux 44 est configuré pour coopérer avec le premier pivot 34 et avec le second pivot 38. Plus précisément, le tube interne creux 44 comporte, du côté du premier pivot 34, une première rainure hélicoïdale 56 et, du côté du second pivot 38, une seconde rainure hélicoïdale 58. Les première et seconde rainures hélicoïdales 56, 58 forment des ouvertures respectives dans la surface du tube interne creux 44. La première rainure hélicoïdale 56 présente une longueur supérieure à celle de la seconde rainure hélicoïdale 58. L'hélicoïde définie par la première rainure hélicoïdale 56 s'enroule sur le tube interne creux 44 dans un sens opposé à celui de l'hélicoïde définie par la seconde rainure hélicoïdale 58. De préférence, l'hélicoïde définie par la première rainure hélicoïdale 56 présente un angle d'inclinaison, par rapport à un plan P1 perpendiculaire à la direction longitudinale selon laquelle s'étend le tube interne creux 44, dont la valeur absolue est différente de, par exemple supérieure à, la valeur absolue d'un angle d'inclinaison formé par l'hélicoïde définie par la seconde rainure hélicoïdale 58 par rapport au plan P1. L'ergot 52, solidaire du premier pivot 34, s'étend à la fois à travers la première rainure hélicoïdale 56 du tube interne creux 44, et à travers la première rainure longitudinale 46 du corps creux 32, et est apte à coulisser le long de ces deux rainures 46, 56. Le tenon 54, solidaire du second pivot 38, s'étend à la fois à travers la seconde rainure hélicoïdale 58 du tube interne creux 44, et à travers la seconde rainure longitudinale 48 du corps creux 32, et est apte à coulisser le long de ces deux rainures 48, 58.The hollow internal tube 44 is configured to cooperate with the first pivot 34 and with the second pivot 38. More precisely, the hollow internal tube 44 comprises, on the side of the first pivot 34, a first helical groove 56 and, on the side of the second pivot 38, a second helical groove 58. The first and second helical grooves 56, 58 form openings respective ones in the surface of the hollow inner tube 44. The first helical groove 56 has a length greater than that of the second helical groove 58. The helicoid defined by the first helical groove 56 winds on the hollow inner tube 44 in one direction. opposite to that of the helicoid defined by the second helical groove 58. Preferably, the helicoid defined by the first helical groove 56 has an angle of inclination, with respect to a plane P1 perpendicular to the longitudinal direction in which s' extends the hollow internal tube 44, the absolute value of which is different from, for example greater than, the absolute value of an angle of inclination formed by the helicoid defined by the second helical groove 58 with respect to the plane P1. The lug 52, integral with the first pivot 34, extends both through the first helical groove 56 of the hollow internal tube 44, and through the first longitudinal groove 46 of the hollow body 32, and is able to slide along these two grooves 46, 56. The tenon 54, integral with the second pivot 38, extends both through the second helical groove 58 of the hollow internal tube 44, and through the second longitudinal groove 48 of the hollow body 32, and is able to slide along these two grooves 48, 58.

Le tube interne creux 44 est apte à tourner autour de sa direction longitudinale à l'intérieur du corps creux 32.The hollow inner tube 44 is able to rotate around its longitudinal direction inside the hollow body 32.

Le corps creux 32 et le tube interne creux 44 sont ainsi configurés pour qu'un déplacement de l'ergot 52 le long de la première rainure longitudinale 56 vers le second pivot 38 entraine un déplacement du second pivot 38, dans le tube interne creux 44, vers l'ergot 52. Ceci permet de rapprocher les premier et second pivots 34, 38 à l'intérieur du corps creux 32, comme visible sur les figures 5 et 6. Plus précisément, le corps creux 32 et le tube interne creux 44 sont configurés pour qu'un déplacement de l'ergot 52 le long de la première rainure longitudinale 46 vers le tenon 54 entraine un déplacement du tenon 54 le long de la seconde rainure longitudinale 48 vers l'ergot 52. L'ergot 52 étant solidaire du premier pivot 34, et le tenon 54 étant solidaire du second pivot 38, ceci entraine un rapprochement des premier et second pivots 34, 38 à l'intérieur du corps creux 32. L'ergot 52 constitue ainsi un organe de manœuvre pour un utilisateur de la montre pour rétracter les premier et second pivots 34, 38 contre l'action du ressort 40.The hollow body 32 and the hollow internal tube 44 are thus configured so that a displacement of the lug 52 along the first longitudinal groove 56 towards the second pivot 38 causes a displacement of the second pivot 38, in the hollow internal tube 44. , towards the lug 52. This makes it possible to bring the first and second pivots 34, 38 together inside the hollow body 32, as can be seen in the figures. figures 5 and 6 . More precisely, the hollow body 32 and the hollow internal tube 44 are configured so that a displacement of the lug 52 along the first longitudinal groove 46 towards the tenon 54 causes a displacement of the tenon 54 along the second longitudinal groove 48 towards the lug 52. The lug 52 being integral with the first pivot 34, and the tenon 54 being integral with the second pivot 38, this causes the first and second pivots 34, 38 to come together inside the hollow body 32. The lug 52 thus constitutes a maneuvering member for a user of the watch to retract the first and second pivots 34, 38 against the action spring 40.

Le fonctionnement de la barrette 30 selon le deuxième mode de réalisation de l'invention va maintenant être décrit, en référence aux figures 5 et 6.The operation of the bar 30 according to the second embodiment of the invention will now be described, with reference to figures 5 and 6 .

La figure 5 représente la barrette 30 en position de repos, c'est-à-dire avec les premier et second pivots 34, 38 déployés à l'extérieur du corps creux 32. Le ressort 40 pousse en effet les premier et second pivots 34, 38 dans des directions opposées, via les premier et second axes 33, 36. Ceci permet aux premier et second pivots 34, 38 d'être introduits dans des logements correspondants des cornes de la boîte de montre, et de fixer ainsi le bracelet à la montre.The figure 5 shows the bar 30 in the rest position, that is to say with the first and second pivots 34, 38 deployed outside the hollow body 32. The spring 40 indeed pushes the first and second pivots 34, 38 in opposite directions, via the first and second axes 33, 36. This allows the first and second pivots 34, 38 to be introduced into corresponding housings of the horns of the watch case, and thus to fix the strap to the watch.

Lorsqu'un utilisateur de la montre pousse l'ergot 52 avec un doigt en direction du centre de la barrette 30, en plus de la rétractation du premier pivot 34, le frottement de la base de l'ergot 52 contre une surface hélicoïdale intérieure 60 de la première rainure hélicoïdale 56, visible sur la figure 4, force le tube interne creux 44 à tourner autour de sa direction longitudinale à l'intérieur du corps creux 32, le premier axe 33 ne pouvant en effet tourner du fait de la première rainure longitudinale 46 du corps creux 32. La rotation du tube interne creux 44 à l'intérieur du corps creux 32 induit alors un frottement entre une surface hélicoïdale extérieure 62 de la seconde rainure hélicoïdale 58, visible sur la figure 4, et le tenon 54. Ce frottement entraine le tenon 54 à se déplacer longitudinalement le long de la seconde rainure longitudinale 48 du corps creux 32, vers le centre de la barrette 30. Comme visible sur la figure 6, ce mouvement rétracte ainsi le second pivot 38 et libère alors la barrette 30 de son emplacement entre les cornes de la boîte de montre.When a user of the watch pushes the lug 52 with a finger towards the center of the bar 30, in addition to the retraction of the first pivot 34, the friction of the base of the lug 52 against an interior helical surface 60 of the first helical groove 56, visible on the figure 4 , forces the hollow inner tube 44 to rotate around its longitudinal direction inside the hollow body 32, the first axis 33 in fact not being able to rotate due to the first longitudinal groove 46 of the hollow body 32. The rotation of the inner tube hollow 44 inside the hollow body 32 then induces friction between an outer helical surface 62 of the second helical groove 58, visible on the figure 4 , and the tenon 54. This friction causes the tenon 54 to move longitudinally along the second longitudinal groove 48 of the hollow body 32, towards the center of the bar 30. As seen in the figure. figure 6 , this movement thus retracts the second pivot 38 and then releases the bar 30 from its location between the horns of the watch case.

Lorsque l'utilisateur de la montre relâche l'ergot 52, le ressort 40 exerce une force tendant à repousser les premier et second axes 33, 36, et donc les premier et second pivots 34, 38, dans des directions opposées. La position de repos de la barrette 30 est alors retrouvée.When the user of the watch releases the lug 52, the spring 40 exerts a force tending to push back the first and second axes 33, 36, and therefore the first and second pivots 34, 38, in opposite directions. The rest position of the bar 30 is then regained.

Claims (10)

  1. Bar (1; 30) for fastening a bracelet to a watch, comprising a hollow body (2; 32) provided with a longitudinal groove (16; 46); a first pivot (4; 34) arranged in the hollow body (2; 32); a shaft (6; 36) arranged in the hollow body (2; 32) and provided with a second pivot (8; 38), each of the first and second pivots (4, 8; 34, 38) being capable of sliding in a respective end (15A, 15B) of the hollow body (2; 32) and being intended to be inserted into a corresponding recess of a respective horn of a watch case; a spring (10; 40) disposed in the hollow body (2; 32), supported between the first and second pivots (4, 8; 34, 38); and a lug (12; 52) extending through the longitudinal groove (16; 46) and capable of sliding along the longitudinal groove, said lug (12; 52) being integral with the first pivot (4; 34) and constituting an actuating member for displacing the first pivot against the action of the spring (10; 40), the bar (1; 30) further comprising a hollow inner tube (14; 44) arranged in the hollow body (2; 32), the second pivot (8; 38) and the spring (10; 40) being inserted into the hollow inner tube (14; 44), the hollow inner tube (14; 44) being configured to cooperate with the first pivot (4; 34) and with the second pivot (8; 38); and characterised in that:
    - the hollow body (2; 32) and the hollow inner tube (14; 44) respectively comprise at least one additional groove (18; 48) and a first helical groove (22; 58), configured such that a displacement of the lug (12; 52) along the longitudinal groove (16; 46) towards the second pivot (8; 38) causes a tenon (20 ; 54) integral with the second pivot to be displaced, such that the second pivot (8; 38) is displaced inside the hollow inner tube (14; 44), towards the lug (12; 52), and brings the first and second pivots (4, 8; 34, 38) closer together inside the hollow body (2; 32), the lug (12; 52) constituting an actuating member for displacing the first and second pivots (4, 8; 34, 38) against the action of the spring (10; 40).
  2. Bar (1) according to claim 1, characterised in that the additional groove (18) of the hollow body (2) is a second helical groove, the second helical groove (18) having a length that is shorter than that of the first helical groove (22), the helicoid defined by the second helical groove (18) having an angle of inclination, relative to a plane (P1) perpendicular to a longitudinal direction wherein the hollow inner tube (14) extends, which is less than an angle of inclination formed by the helicoid defined by the first helical groove (22) relative to this same plane (P1).
  3. Bar (1) according to claim 2, characterised in that the first pivot (4), the lug (12) and the hollow inner tube (14) are formed in one piece of material, the first pivot (4) forming an end (24A) of the hollow inner tube (14), situated opposite the second pivot (8) relative to the spring (10).
  4. Bar (1) according to claim 2 or 3, characterised in that the helicoid defined by the first helical groove (22) is wound on the hollow inner tube (14) in the same direction as the helicoid defined by the second helical groove (18) on the hollow body (2).
  5. Bar (30) according to claim 1, characterised in that the additional groove (48) of the hollow body (32) is a second longitudinal groove; and in that the hollow inner tube (44) includes a second helical groove (56) on the side opposite the second pivot (38), the lug (52) further extending through the second helical groove (56) and being capable of sliding along the second helical groove (56), the second helical groove (56) having a length that is longer than that of the first helical groove (58), the helicoid defined by the second helical groove (56) being wound on the hollow inner tube (44) in a direction opposite to that of the helicoid defined by the first helical groove (58).
  6. Bar (30) according to claim 5, characterised in that it comprises an additional shaft (33) arranged in the hollow body (32), said additional shaft (33) comprising the first pivot (34) and the lug (52), the first pivot (34) extending inside the hollow inner tube (44), opposite the second pivot (38) relative to the spring (40).
  7. Bar (30) according to claim 5 or 6, characterised in that the second longitudinal groove (48) has a length that is shorter than that of the first longitudinal groove (46).
  8. Bar (30) according to any of claims 5 to 7, characterised in that the hollow inner tube (44) is capable of rotating about the longitudinal direction thereof inside the hollow body (32).
  9. Bar (1; 30) according to any of the preceding claims, characterised in that the spring (10; 40) is a spiral spring.
  10. Wristwatch including at least one bar (1; 30) for fastening the bracelet to the watch, characterised in that the bar (1; 30) is in accordance with any of the preceding claims.
EP18168777.3A 2018-04-23 2018-04-23 Clip for securing a band to a watch provided with two retractable pivots Active EP3561608B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18168777.3A EP3561608B1 (en) 2018-04-23 2018-04-23 Clip for securing a band to a watch provided with two retractable pivots
JP2019060144A JP6749450B2 (en) 2018-04-23 2019-03-27 A bar with two retractable pivots to secure the band on the watch
US16/372,796 US10935934B2 (en) 2018-04-23 2019-04-02 Bar provided with two retractable pivots for securing a wristlet on a watch
KR1020190046316A KR102230626B1 (en) 2018-04-23 2019-04-19 Bar provided with two retractable pivots for securing a wristlet on a watch
CN201910323411.7A CN110389522B (en) 2018-04-23 2019-04-22 Lever device for fixing a bracelet to a wristwatch and wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18168777.3A EP3561608B1 (en) 2018-04-23 2018-04-23 Clip for securing a band to a watch provided with two retractable pivots

Publications (2)

Publication Number Publication Date
EP3561608A1 EP3561608A1 (en) 2019-10-30
EP3561608B1 true EP3561608B1 (en) 2021-03-10

Family

ID=62046760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18168777.3A Active EP3561608B1 (en) 2018-04-23 2018-04-23 Clip for securing a band to a watch provided with two retractable pivots

Country Status (5)

Country Link
US (1) US10935934B2 (en)
EP (1) EP3561608B1 (en)
JP (1) JP6749450B2 (en)
KR (1) KR102230626B1 (en)
CN (1) CN110389522B (en)

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WO2022204768A1 (en) * 2021-03-31 2022-10-06 Pasic Mensura Device for connecting a belt or bracelet
JP2022168423A (en) * 2021-04-26 2022-11-08 セイコーエプソン株式会社 band and watch

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Also Published As

Publication number Publication date
US20190324403A1 (en) 2019-10-24
JP2019191161A (en) 2019-10-31
EP3561608A1 (en) 2019-10-30
KR102230626B1 (en) 2021-03-22
KR20190123230A (en) 2019-10-31
JP6749450B2 (en) 2020-09-02
CN110389522B (en) 2021-08-13
US10935934B2 (en) 2021-03-02
CN110389522A (en) 2019-10-29

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