EP3798742A1 - Device for connecting case body and lugs for a watch - Google Patents
Device for connecting case body and lugs for a watch Download PDFInfo
- Publication number
- EP3798742A1 EP3798742A1 EP19199353.4A EP19199353A EP3798742A1 EP 3798742 A1 EP3798742 A1 EP 3798742A1 EP 19199353 A EP19199353 A EP 19199353A EP 3798742 A1 EP3798742 A1 EP 3798742A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connector
- tongue
- connection device
- horn
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000005489 elastic deformation Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002427 irreversible effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Images
Classifications
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- 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
- A44C5/147—Watchcase itself used as fastener
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- 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
-
- 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
-
- 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
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
Definitions
- the invention relates to a method for fixing a horn to a middle part of a watch, a middle-horn connection device and a middle-horn assembly.
- the document CH 708815 relates to a covering element for a middle part of a wristwatch.
- the covering element is in the form of a separate cover plate fixed to the middle part of the wristwatch and which at least partially covers a connection zone between a part of a bracelet and the middle part of the watch. .
- the document EP 0466655 relates to a watch case and device for fixing a bracelet to the watch case.
- the caseband of the case has one or two recesses arranged to receive the end of each bracelet strand.
- the bracelet ends are held by attachment means, consisting of claws or recesses, corresponding to notches or protuberances made near the ends of the bracelet strands, and which are arranged on extensions of the bottom of the box or on intermediate pieces integral with the bottom of the case or the caseband.
- the document EP 0197416 relates to an assembly consisting of a watch case element and a bracelet comprising at least one strand.
- the strand is made of a first thermoplastic plastic material.
- the box member is made of a second thermoplastic plastic material having a melting temperature higher than the melting temperature of the first plastic material.
- the box element comprises a part surrounding at least one end of the strand and being integral with this end.
- a groove with a part undercut is meant a groove whose shape prevents direct release of solid material filling, even partially, the part undercut thereof.
- the middle part and the fastener are configured to be made integral”, it is meant that the fastener is configured to be linked in a reversible or irreversible manner, by contact, to the middle part.
- the bond is irreversible.
- the term “irreversible connection” is understood to mean any connection which requires the destruction of the structure of the connectors in order to separate the middle part from the fastener.
- such a device makes easy the connection between a middle part and a fastener comprising at least one horn of a watch. Indeed, it suffices to apply a compression between the middle part and the fastener so that the undercut part of the second connector is housed in the recess of the tongue of the first connector. This way, and thanks with the part in the undercut, the withdrawal by a force opposite to the compression is impossible: the fastener and the middle part are integral.
- the tongue is configured to deform elastically upon insertion into the groove, the tongue and the undercut portion being configured such that the tongue substantially returns to its rest position, preferably. returns to its rest position, when the undercut part is housed in the recess of the tongue.
- the groove extends over a length L.
- the length L may be in the range of 10% to 90%, preferably in the range of 40% to 80%, more preferably in the range of from 50% to 70%, most preferably in the range of 60% to 70% of the length over which the tongue is configured to elastically deform upon insertion into the groove 1 . It will be appreciated that in this way the two connectors are firmly linked. In addition, this configuration mitigates the risk of detachment and / or damage to the connectors when a moment of force is applied to one and / or the other of the two connectors. 1 It may be necessary to modify depending on the applications.
- the groove may include an undercut on which the tongue is configured to flex elastically upon insertion of the tongue into the groove.
- the elastic deformation i.e. elastic bending
- the tongue is forced and accompanied by the undercut part until the moment when the undercut part of the second connector fits into the recess. of the tab of the first connector.
- the recess is through.
- the first connector comprises a tenon and the second connector comprises a mortise.
- the mortise is configured to guide the tenon when the first connector of the horn with the second connector of the middle part.
- the first connector comprises two or more tenons and the second connector comprises two or more mortises.
- the mortises are configured to guide the tenons during the contacting of the first connector of the horn with the second connector of the middle part. It will be appreciated that the presence of one or more tenons and one or more mortises makes it possible to guide the insertion of the first connector into the second connector. The presence of several tenons and mortises makes it possible to mitigate the risk of incorrect insertion when, eg. ex. a force torque is applied to the first and / or second connectors.
- the second connector preferably comprises one or more support portions for the tongue of the first connector in order to limit elastic deformations of the tongue when the undercut portion is housed in the recess of the tongue.
- the one or more support parts may, e.g. ex. sterically (i.e. geometrically) limit elastic deformations of the tongue.
- the tongue is preferably made of steel.
- the remainder of the clip (other than the tongue) is preferably in a material other than the tongue.
- the remainder of the clip is molded around the tongue, with the tongue projecting from the clip.
- the molding is preferably made from a plastic material. The edges of the tab may be trapped in the molding of the rest of the clip.
- the second connector can be machined, preferably the middle part is machined.
- the middle part is preferably made of steel.
- a second aspect of the invention relates to a fastening method comprising a middle-lug connection device according to the first aspect of the invention.
- the method includes inserting the first connector of the clip into the second connector of the middle part such that the undercut portion fits into the recess in the tongue.
- a third aspect of the invention relates to a middle-horn assembly obtained by the fixing method according to the second aspect of the invention.
- the middle part 2 is an element of a watch case (partially shown) serving to protect the movement of the watch eg from dust, humidity, shocks, etc. is the middle part of the watch case which receives the watch movement.
- the middle part 2 is circular.
- other shapes are suitable, such as p. ex. a square shape, a rectangular shape, an ellipsoidal shape, etc.
- the caseband 2 defines a main plane P located at mid-height thereof.
- the clip 4 comprises four horns 4a each provided with holes 6 aligned transversely to the longitudinal direction of a bracelet (not shown), the horns 4a being arranged in order to attach the bracelet by means of p. ex. a bar passing through the holes 6. It is obvious that other means of fixing the strap to the clip are suitable.
- the shape, length and width and the number of horns 4a may vary depending on the type of watch.
- the Figs. 2-5 show the clip 4 and the middle 2 when they are not integral, according to a preferred embodiment of the invention.
- the clip 4 comprises a first connector 8 and the middle part 2 comprises a second connector 10.
- the first connector 8 is configured to cooperate with the second connector 10 to fix the clip 4 on the middle part 2.
- the first connector 8 comprises a circular interior surface 12, perpendicular to the main plane P, configured to be in direct contact with the middle 2 when the middle 2 and the lug 4 are integral.
- the first connector 8 includes two studs 14 and a tongue 16, all of which protrude from the circular interior surface 10 inwardly (i.e. towards the middle 2).
- the length of an element e.g. of the tongue, of the through-recess
- the tongue 16 made of steel, comprises a through recess 18 over a length L 'of the tongue 16.
- the length L' is in the range of 70% to 95%, preferably 70% to 90%, more preferably 70% to 80% of tongue length 16.
- the remainder of the clip 4 (ie other than the tab) is overmolded to the tab 16. In this way, the tab 16 is made integral with the rest of the clip 4.
- the remainder of the clip 4 is made of plastic.
- the tongue 16 comprises two curved ridges meeting at their ends.
- the overmolding is carried out in such a way that the radially outermost ridge is trapped in the molding and the radially innermost ridge is free and protrudes inward.
- the space between the two ridges remaining free after overmolding corresponds to the through recess 18. It will be appreciated that other techniques can be used to trap the tongue 16 in the rest of the fastener 4.
- the radially innermost ridge 38 of the clip 4, projecting inwardly, comprises a radially outer abutment planar surface 19.
- the planar surface 19 is perpendicular to the plane P and extends over a length. L "in the range of 20% to 80%, preferably 30% to 70%, more preferably 25% to 40% of the length of the tab 16.
- the state (and position) of the tab 16 shown in Figs. 2-5 is the state (and position) of rest thereof.
- the tenons 14 are arranged symmetrically on either side of the fastener 4 and have a cylindrical shape, the base of the cylinder being perpendicular to the main plane P. According to other embodiments, the tenons 14 may have other shapes, eg. ex. parallelepipedal, conical, etc ...
- the middle part 2 comprises a second connector 10 configured to cooperate with the first connector 8 of the fastener 4 to fix the fastener 4 on the middle part 2.
- the second connector comprises an oblong curved surface 20 radially set back with respect to the radially outer surface of the middle part 2.
- the oblong curved surface 20 is configured to come into direct contact with the circular inner surface 12 of the clip 4.
- the second connector 10 comprises a groove 22, two mortises 24 and two parts of support 25 for the tongue, all depressing the oblong curved surface 20.
- the groove includes an undercut portion 26.
- the undercut portion 26 extends over a length L.
- the length L may be substantially equal to the length L "of the planar surface 19.
- the ratio between the length L and the length L " is included in an interval ranging from 0.7 to 1.3, preferably in an interval ranging from 0.8 to 1.2 and more preferably in an interval ranging from 0.95 to 1.15.
- the undercut portion 26 comprises a radially interior planar abutment surface 28, substantially perpendicular to the plane P, preferably with a re-entrant angle of the order of 5 °.
- the undercut portion 26 also comprises a recess 30 delimited by the radially inner planar abutment surface 28 and a radially outer planar abutment surface 32.
- the radially outer planar abutment surface 32 is perpendicular to the plane P
- the ratio between the height H of the radially outer surface 32 and the height H 'of the tongue is between 0.3 and 1.5, preferably between 0.35 and 0.5.
- the groove comprises a draft portion 34 having a flat draft surface 36.
- the flat draft surface forms an angle ⁇ with respect to the plane P.
- the angle ⁇ is within an interval ranging from 10 ° to 45 °, preferably from 15 ° to 40 °, more preferably from 20 ° to 35 °.
- the groove also includes two support parts 25 for the tongue.
- the two support parts 25 are arranged laterally, symmetrically, at the edges of the groove.
- the ratio between the height H "of the support parts 25 and the height H 'of the tongue is within a range of 0.8 to 1.5 and preferably 1 to 1.15.
- the length L (4) of each part of backing 25 is in the range of 2.5% to 20%, preferably 5% to 15%, more preferably 7% to 13% of the length of the tongue.
- the mortises 24 are arranged symmetrically on either side of the second connector 10 (laterally substantially at the edges of the second connector 10).
- the mortises 26 have a cylindrical shape, the base of the cylinder of which is perpendicular to the main plane P. According to other embodiments, the mortises 26 may have another shape, eg. ex. parallelepipedal, conical, etc ...
- the Fig. 6 is a sectional view showing the insertion of the clip 4 into the caseband 2 when they begin to engage.
- the protruding edge 38 elastically deforms on contact with the flat draft surface 36. More particularly, the protruding edge 38 is bent by the flat draft surface 36. The rest of the middle part and the ends of the edge 38 are held in place by the support parts 25 and the tenons 14 housed in the mortises 24 (not shown - see e.g. Figs. 1-5 ).
- the tenons 14 and the tongue 16 (substantially) simultaneously come into contact with the mortises 24 and the parts 25, 34, respectively. It follows that the mortises and the support parts guide the tenons and the ends of the protruding ridge when the first connector of the horn is brought into contact with the second connector.
- the Fig. 7 is a sectional view showing the insertion of the clip 4 in the middle part 2 when they are integrally engaged.
- the ridge returned to its rest position by insertion into the recess 30 of the undercut portion 26. This insertion took place when the ridge passed the undercut surface 36 (in particular when the flat abutment surface radially outer 19 has protruded radially outer planar abutment surface 32 of the undercut portion 26).
- the ridge may only substantially regain its rest position. This can p. ex. This is the case when the recess is not through and the part undercut does not allow the edge to return to its rest position.
- the radially outer surface 32 of the undercut portion 26 is in direct contact with the flat radially outer abutment surface 19 of the projecting ridge 38.
- the middle 2 and the clip 4 are thus made integral and form an assembly. middle-horn. Indeed, the application of a force opposite to that applied for the insertion of the fastener 4 in the middle part 2 does not make it possible to separate the latter.
- the circular inner surface 12 of the fastener and the oblong curved surface 20 of the middle part 2 are in direct contact, where appropriate with a play of the order of 1/10 mm when the middle part and the fastener are solidarity.
- any elastic deformations of the protruding edge 38 are significantly reduced compared to the possible deformations when the protruding edge. is not inserted into the connector 10 of the middle part 2.
- the support parts 25 sterically limit the elastic deformation of the edge 38, in particular in the event of a force applied to the fastener in a direction perpendicular to the dial. It is therefore much more difficult to separate the attachment from the middle part than to secure them.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Casings For Electric Apparatus (AREA)
- Clamps And Clips (AREA)
Abstract
Dispositif de connexion carrure-corne pour une montre, un procédé de fixation d'une attache comprenant au moins une corne à une carrure et un ensemble carrure-corne. Le dispositif de connexion comprenant une attache comprenant au moins une corne ayant un premier connecteur et une carrure ayant un second connecteur, le premier connecteur étant configuré pour coopérer avec le second connecteur pour fixer l'attache sur la carrure, dans lequel :∘ le premier connecteur comprend une languette avec un évidement ;∘ le second connecteur comprend une rainure avec une partie en contre-dépouille, la partie en contre-dépouille étant configurée pour se loger dans l'évidement de la languette ; et∘ la carrure et l'attache sont rendues solidaires lorsque la partie en contre-dépouille du second connecteur est logée dans l'évidement de la languette du premier connecteur.A middle-lug connection device for a watch, a method for attaching a fastener comprising at least one lug to a middle part and a middle-lug assembly. The connection device comprising a fastener comprising at least one horn having a first connector and a middle part having a second connector, the first connector being configured to cooperate with the second connector to fix the fastener on the middle part, in which: ∘ the first connector comprises a tongue with a recess; ∘ the second connector comprises a groove with an undercut portion, the undercut portion being configured to fit into the recess of the tongue; and∘ the middle part and the clip are made integral when the undercut portion of the second connector is received in the recess of the tongue of the first connector.
Description
De manière générale, l'invention concerne procédé de fixation d'une corne sur une carrure d'une montre, un dispositif de connexion carrure-corne et un ensemble carrure-corne.In general, the invention relates to a method for fixing a horn to a middle part of a watch, a middle-horn connection device and a middle-horn assembly.
Le document
Le document
Le document
Un premier aspect de l'invention concerne un dispositif de connexion carrure-attache (ci-après carrure-corne) pour une montre, comprenant une attache à au moins une corne ayant un premier connecteur et une carrure ayant un second connecteur, le premier connecteur étant configuré pour coopérer avec le second connecteur pour fixer la corne sur la carrure, dans lequel :
- ∘ le premier connecteur comprend une languette avec un évidement ;
- ∘ le second connecteur comprend une rainure avec une partie en contre-dépouille, la partie en contre-dépouille étant configurée pour se loger dans l'évidement de la languette ; et
- ∘ la carrure et la corne sont configurées pour être rendues solidaires lorsque la partie en contre-dépouille du second connecteur est logée dans l'évidement de la languette du premier connecteur.
- ∘ the first connector comprises a tab with a recess;
- ∘ the second connector includes a groove with an undercut portion, the undercut portion being configured to fit into the recess of the tongue; and
- ∘ the middle part and the horn are configured to be made integral when the undercut part of the second connector is housed in the recess of the tongue of the first connector.
Par « une rainure avec une partie en contre-dépouille », on entend une rainure dont la forme interdit un démoulage direct de matière solide comblant, même partiellement, la partie en contre-dépouille de celle-ci.By "a groove with a part undercut" is meant a groove whose shape prevents direct release of solid material filling, even partially, the part undercut thereof.
Par « la carrure et l'attache sont configurées pour être rendues solidaires », on entend que l'attache est configurée pour être liée de façon réversible ou irréversible, par contact, à la carrure. Préférablement, la liaison est irréversible. On entend par « liaison irréversible », tout liaison qui nécessite la destruction de la structure des connecteurs pour séparer la carrure de l'attache.By “the middle part and the fastener are configured to be made integral”, it is meant that the fastener is configured to be linked in a reversible or irreversible manner, by contact, to the middle part. Preferably, the bond is irreversible. The term “irreversible connection” is understood to mean any connection which requires the destruction of the structure of the connectors in order to separate the middle part from the fastener.
Il sera apprécié qu'un tel dispositif rend aisée la connexion entre une carrure et une attache comprenant au moins une corne d'une montre. En effet, il suffit d'appliquer une compression entre la carrure et l'attache pour que la partie en contre-dépouille du second connecteur se loge dans l'évidement de la languette du premier connecteur. De cette façon, et grâce à la partie en la contre-dépouille, le retrait par une force inverse à la compression est impossible : l'attache et la carrure sont solidaires.It will be appreciated that such a device makes easy the connection between a middle part and a fastener comprising at least one horn of a watch. Indeed, it suffices to apply a compression between the middle part and the fastener so that the undercut part of the second connector is housed in the recess of the tongue of the first connector. This way, and thanks with the part in the undercut, the withdrawal by a force opposite to the compression is impossible: the fastener and the middle part are integral.
Selon un mode de réalisation préféré, la languette est configurée pour se déformer élastiquement lors de l'insertion dans la rainure, la languette et la partie en contre-dépouille étant configurées telle façon à ce que la languette retrouve substantiellement sa position de repos, préférablement retrouve sa position de repos, lorsque la partie en contre-dépouille se loge dans l'évidement de la languette.According to a preferred embodiment, the tongue is configured to deform elastically upon insertion into the groove, the tongue and the undercut portion being configured such that the tongue substantially returns to its rest position, preferably. returns to its rest position, when the undercut part is housed in the recess of the tongue.
Préférablement, la rainure s'étend sur une longueur L. La longueur L peut être comprise dans l'intervalle allant de 10% à 90%, préférablement dans l'intervalle allant de 40% à 80%, plus préférablement dans l'intervalle allant de 50% à 70%, le plus préférablement dans l'intervalle allant de 60% à 70% de la longueur sur laquelle la languette est configurée pour se déformer élastiquement lors de l'insertion dans la rainure1. Il sera apprécié que de cette façon, les deux connecteurs sont fermement liés. De plus, cette configuration mitige le risque de détachement et/ou d'endommagement des connecteurs lors de l'application d'un moment de force sur l'un et/ou l'autre des deux connecteurs.
1 Il est peut-être nécessaire de modifier selon les applications.Preferably, the groove extends over a length L. The length L may be in the range of 10% to 90%, preferably in the range of 40% to 80%, more preferably in the range of from 50% to 70%, most preferably in the range of 60% to 70% of the length over which the tongue is configured to elastically deform upon insertion into the groove 1 . It will be appreciated that in this way the two connectors are firmly linked. In addition, this configuration mitigates the risk of detachment and / or damage to the connectors when a moment of force is applied to one and / or the other of the two connectors.
1 It may be necessary to modify depending on the applications.
La rainure peut comprendre une partie en dépouille sur laquelle la languette est configurée pour se fléchir élastiquement lors de l'insertion de la languette dans la rainure. De cette façon la déformation élastique (c.-à-d. la flexion élastique) de la languette est forcée et accompagnée par la partie en dépouille jusqu'au moment où la partie en contre-dépouille du second connecteur se loge dans l'évidement de la languette du premier connecteur.The groove may include an undercut on which the tongue is configured to flex elastically upon insertion of the tongue into the groove. In this way the elastic deformation (i.e. elastic bending) of the tongue is forced and accompanied by the undercut part until the moment when the undercut part of the second connector fits into the recess. of the tab of the first connector.
Préférablement, l'évidement est traversant.Preferably, the recess is through.
Selon un mode de réalisation, le premier connecteur comprend un tenon et le second connecteur comprend une mortaise. La mortaise est configurée pour guider le tenon lors de la mise en contact du premier connecteur de la corne avec le second connecteur de la carrure. Selon un mode de réalisation préféré, le premier connecteur comprend deux tenons ou plus et le second connecteur comprend deux mortaises ou plus. Les mortaises sont configurées pour guider les tenons lors de la mise en contact du premier connecteur de la corne avec le second connecteur de la carrure. Il sera apprécié que la présence d'un ou plusieurs tenons et une ou plusieurs mortaises permet de guider l'insertion du premier connecteur dans le second connecteur. La présence de plusieurs tenons et mortaises permet de mitiger le risque de mauvaise insertion lorsque, p. ex. un couple de force est appliqué aux premiers et/ou second connecteurs.According to one embodiment, the first connector comprises a tenon and the second connector comprises a mortise. The mortise is configured to guide the tenon when the first connector of the horn with the second connector of the middle part. According to a preferred embodiment, the first connector comprises two or more tenons and the second connector comprises two or more mortises. The mortises are configured to guide the tenons during the contacting of the first connector of the horn with the second connector of the middle part. It will be appreciated that the presence of one or more tenons and one or more mortises makes it possible to guide the insertion of the first connector into the second connector. The presence of several tenons and mortises makes it possible to mitigate the risk of incorrect insertion when, eg. ex. a force torque is applied to the first and / or second connectors.
Le second connecteur comprend préférablement une ou plusieurs parties de support pour la languette du premier connecteur afin de limiter les déformations élastiques de la languette lorsque la partie en contre-dépouille est logée dans l'évidement de la languette. Les une ou plusieurs parties de support peuvent, p. ex. limiter stériquement (c.-à-d. géométriquement) les déformations élastiques de la languette.The second connector preferably comprises one or more support portions for the tongue of the first connector in order to limit elastic deformations of the tongue when the undercut portion is housed in the recess of the tongue. The one or more support parts may, e.g. ex. sterically (i.e. geometrically) limit elastic deformations of the tongue.
La languette est préférablement en acier.The tongue is preferably made of steel.
Le reste de l'attache (autre que la languette) est préférablement dans un matériau différent de la languette. Selon un mode de réalisation, le reste de l'attache est moulée autour de la languette, la languette faisant saillie de l'attache. Le moulage est préférablement réalisé à partir d'une matière plastique. Les bords de la languette peuvent être emprisonnés dans le moulage du reste de l'attache.The remainder of the clip (other than the tongue) is preferably in a material other than the tongue. In one embodiment, the remainder of the clip is molded around the tongue, with the tongue projecting from the clip. The molding is preferably made from a plastic material. The edges of the tab may be trapped in the molding of the rest of the clip.
Le second connecteur peut être usiné, préférablement la carrure est usinée. La carrure est préférablement en acier.The second connector can be machined, preferably the middle part is machined. The middle part is preferably made of steel.
Un second aspect de l'invention concerne un procédé de fixation comprenant un dispositif de connexion carrure-corne selon le premier aspect de l'invention. Le procédé comprend l'insertion du premier connecteur de l'attache dans le second connecteur de la carrure de telle façon à ce que la partie en contre-dépouille se loge dans l'évidement de la languette.A second aspect of the invention relates to a fastening method comprising a middle-lug connection device according to the first aspect of the invention. The method includes inserting the first connector of the clip into the second connector of the middle part such that the undercut portion fits into the recess in the tongue.
Un troisième aspect de l'invention concerne un ensemble carrure-corne obtenu par le procédé de fixation selon le second aspect de l'invention.A third aspect of the invention relates to a middle-horn assembly obtained by the fixing method according to the second aspect of the invention.
D'autres particularités et caractéristiques de l'invention ressortiront de la description détaillée de certains modes de réalisation avantageux présentés ci-dessous, à titre d'illustration, avec référence aux dessins annexés qui montrent :
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Fig. 1 : une vue en perspective d'un ensemble carrure-corne selon un mode de réalisation de l'invention ; -
Fig. 2 : une vue en perspective d'une carrure et d'une attache selon un mode de réalisation de l'invention ; -
Fig. 3 : une vue en perspective d'une carrure et d'une attache selon un mode de réalisation de l'invention ; -
Fig. 4 : une vue en perspective d'une carrure et d'une attache selon un mode de réalisation de l'invention ; -
Fig. 5 : une coupe transversale d'une carrure et d'une attache selon un mode de réalisation de l'invention ; -
Fig. 6 : une coupe transversale d'une carrure et d'une attache lors de l'insertion de la corne dans la carrure selon un mode de réalisation de l'invention ; et -
Fig. 7 : une coupe transversale d'un ensemble carrure-corne selon un mode de réalisation de l'invention.
-
Fig. 1 : a perspective view of a middle-horn assembly according to one embodiment of the invention; -
Fig. 2 : a perspective view of a middle part and of a fastener according to one embodiment of the invention; -
Fig. 3 : a perspective view of a middle part and of a fastener according to one embodiment of the invention; -
Fig. 4 : a perspective view of a middle part and of a fastener according to one embodiment of the invention; -
Fig. 5 : a cross section of a middle part and of a fastener according to one embodiment of the invention; -
Fig. 6 : a cross section of a middle part and of a fastener during the insertion of the horn into the middle part according to one embodiment of the invention; and -
Fig. 7 : a cross section of a middle-horn assembly according to one embodiment of the invention.
L'attention du lecteur est attirée sur le fait que les dessins ne sont pas à l'échelle. En outre, pour des raisons de clarté, les proportions entre hauteur, longueur et/ou largeur peuvent ne pas être correctement représentées. Enfin et surtout, les espaces, évidements, entre les connecteurs mis en contact peuvent être plus grands ou plus petits que dans une implémentation réelle de l'invention.The reader's attention is drawn to the fact that the drawings are not to scale. Furthermore, for reasons of clarity, the proportions between height, length and / or width may not be correctly represented. Finally and above all, the spaces, recesses, between the connectors brought into contact can be larger or smaller than in an actual implementation of the invention.
Avec référence à la
L'attache à au moins une corne 4 permet de fixer un bracelet à la carrure 2. Dans le mode de réalisation illustré à la
Les
Le premier connecteur 8 comprend une surface intérieure circulaire 12, perpendiculaire au plan principal P, configurée pour être en contact direct avec la carrure 2 lorsque la carrure 2 et la corne 4 sont solidaires. Le premier connecteur 8 comprend deux tenons 14 et une languette 16, tous faisant saillie de la surface intérieure circulaire 10 vers l'intérieur (c.-à-d. vers la carrure 2).The
De manière générale, on définit la longueur d'un élément (p.ex. de la languette, de l'évidement traversant) comme étant la distance (euclidienne) entre les deux points les plus éloignés de l'élément dans un plan colinéaire au plan P.In general, we define the length of an element (e.g. of the tongue, of the through-recess) as being the (Euclidean) distance between the two most distant points of the element in a plane collinear with the plan P.
La languette 16, en acier, comprend un évidement traversant 18 sur une longueur L' de la languette 16. La longueur L' est comprise dans l'intervalle allant de 70% à 95%, préférablement de 70% à 90%, plus préférablement de 70% à 80% de la longueur de languette 16.The
Les reste de l'attache 4 (c.-à-d. autre que la languette) est surmoulée à la languette 16. De cette façon, la languette 16 est rendue solidaire au le reste de la l'attache 4. Le reste de l'attache 4 est en matière plastique.The remainder of the clip 4 (ie other than the tab) is overmolded to the
Plus particulièrement, la languette 16 comprend deux arêtes courbes se rejoignant à leurs extrémités. Le surmoulage est réalisé de telle façon à ce que l'arête radialement la plus à l'extérieure soit emprisonnée dans le moulage et que l'arête radialement la plus à l'intérieur soit libre et fasse saillie vers l'intérieur. L'espace entre les deux arêtes restant libre après surmoulage correspond à l'évidement traversant 18. Il sera apprécié que d'autres techniques peuvent être utilisées pour emprisonner la languette 16 dans le reste de l'attache 4.More particularly, the
L'arête 38 radialement la plus à l'intérieur de l'attache 4, faisant saillie vers l'intérieur, comprend un surface plane de butée radialement extérieure 19. La surface plane 19 est perpendiculaire au plan P et s'étend sur une longueur L" comprise dans l'intervalle allant de 20% à 80%, préférablement 30% à 70%, plus préférablement 25% à 40% de la longueur de la languette 16.The radially
L'état (et position) de la languette 16 représenté aux
Les tenons 14 sont arrangés symétriquement de part et d'autre de l'attache 4 et ont une forme cylindrique, la base du cylindre étant perpendiculaire au plan principal P. Selon d'autres modes de réalisation, les tenons 14 peuvent avoir d'autres formes, p. ex. parallélépipédique, conique, etc...The
La carrure 2 comprend un second connecteur 10 configuré pour coopérer avec le premier connecteur 8 de l'attache 4 pour fixer l'attache 4 sur la carrure 2. En particulier, le second connecteur comprend une surface courbe oblongue 20 radialement en retrait par rapport à la surface radialement extérieure de la carrure 2. La surface courbe oblongue 20 est configurée pour être mise en contact direct avec la surface intérieure circulaire 12 de l'attache 4. Le second connecteur 10 comprend une rainure 22, deux mortaises 24 et deux parties de support 25 pour la languette, toutes faisant dépression par rapport à la surface courbe oblongue 20.The
La rainure comprend une partie en contre-dépouille 26. La partie en contre-dépouille 26 s'étend sur une longueur L. La longueur L peut être substantiellement égale à la longueur L" de la surface plane 19. Le rapport entre la longueur L et la longueur L" est compris dans un intervalle allant de 0.7 à 1.3, préférablement dans un intervalle allant de 0.8 à 1.2 et plus préférablement dans un intervalle allant de 0.95 à 1.15.The groove includes an undercut
La partie en contre-dépouille 26 comprend une surface de butée plane radialement intérieure 28, sensiblement perpendiculaire au plan P, de préférence avec un angle rentrant de l'ordre de 5°. D'autre part, la partie en contre-dépouille 26 comprend aussi un évidement 30 délimité par la surface de butée plane radialement intérieure 28 et une surface de butée plane radialement extérieure 32. La surface de butée plane radialement extérieure 32 est perpendiculaire au plan P. Le rapport entre hauteur H de la surface radialement extérieure 32 et la hauteur H' de la languette est compris entre 0.3 et 1.5, préférablement entre 0.35 et 0.5.The undercut
D'autre part, la rainure comprend une partie en dépouille 34 ayant une surface plane en dépouille 36. La surface plane en dépouille fait un angle α par rapport à la plan P. L'angle α est compris dans un intervalle allant de 10° à 45°, préférablement de 15° à 40°, plus préférablement de 20° à 35°.On the other hand, the groove comprises a
La rainure comprend aussi deux parties de support 25 pour la languette. Les deux parties de support 25 sont arrangées latéralement, symétriquement, aux bords de la rainure. Le rapport entre la hauteur H" des parties de support 25 et la hauteur H' de la languette est compris dans un intervalle allant de 0.8 à 1.5 et préférablement de 1 à 1.15. De plus, la longueur L(4) de chaque partie de support 25 est comprise dans l'intervalle allant de 2,5% à 20%, préférablement de 5% à 15%, plus préférablement de 7% à 13% de la longueur de la languette.The groove also includes two
Les mortaises 24 sont arrangées symétriquement de part et d'autre du second connecteur 10 (latéralement substantiellement aux bords du second connecteur 10). Les mortaises 26 ont une forme cylindrique dont la base du cylindre est perpendiculaire au plan principal P. Selon d'autres modes de réalisation, les mortaises 26 peuvent avoir une d'autres formes, p. ex. parallélépipédique, conique, etc...The
La
La
La surface radialement extérieure 32 de la partie en contre-dépouille 26 est en contact direct avec la surface plane de butée radialement extérieure 19 de l'arête faisant saillie 38. La carrure 2 et l'attache 4 sont ainsi rendue solidaires et forment un ensemble carrure-corne. En effet, l'application d'une force inverse de celle appliquée pour l'insertion de l'attache 4 dans la carrure 2 ne permet pas de séparer ces dernières. The radially
De plus, la surface intérieure circulaire 12 de l'attache et la surface courbe oblongue 20 de la carrure 2 sont en contact direct, le cas échéant avec un jeu de l'ordre du 1/10 mm lorsque la carrure et l'attache sont solidaires.In addition, the circular
Le rapport entre la hauteur H" des parties de support 25 et la hauteur H' de la languette étant substantiellement les mêmes, les déformations élastiques éventuelles de l'arête 38 faisant saillie sont significativement réduites par rapport aux déformations possibles lorsque l'arête faisant saillie n'est pas insérée dans le connecteur 10 de la carrure 2. En effet, les parties de support 25 limitent stériquement la déformation élastique de l'arête 38, notamment en cas de force appliquée sur l'attache selon une direction perpendiculaire au cadran. Il est dès lors beaucoup plus difficile de désolidariser l'attache de la carrure que de les solidariser.Since the ratio between the height H "of the supporting
Alors que des modes de réalisation particuliers viennent d'être décrits en détail, l'homme du métier appréciera que diverses modifications et alternatives à ceux-là puissent être développées à la lumière de l'enseignement global apporté par la présente divulgation de l'invention. Par conséquent, les agencements et/ou procédés spécifiques décrits ci-dedans sont censés être donnés uniquement à titre d'illustration, sans intention de limiter la portée de l'invention.While particular embodiments have just been described in detail, those skilled in the art will appreciate that various modifications and alternatives to these may be developed in light of the overall teaching provided by the present disclosure of the invention. . Therefore, the specific arrangements and / or methods described herein are intended to be given by way of illustration only, without the intention of limiting the scope of the invention.
Claims (13)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19199353.4A EP3798742A1 (en) | 2019-09-24 | 2019-09-24 | Device for connecting case body and lugs for a watch |
US16/991,100 US11517082B2 (en) | 2019-09-24 | 2020-08-12 | Case middle/horn connection device for a watch |
JP2020140594A JP6980867B2 (en) | 2019-09-24 | 2020-08-24 | Case middle / horn connection device for portable watches |
CN202011018185.0A CN112631110B (en) | 2019-09-24 | 2020-09-24 | Middle part and ear connecting device for watch case |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19199353.4A EP3798742A1 (en) | 2019-09-24 | 2019-09-24 | Device for connecting case body and lugs for a watch |
Publications (1)
Publication Number | Publication Date |
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EP3798742A1 true EP3798742A1 (en) | 2021-03-31 |
Family
ID=68066692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19199353.4A Pending EP3798742A1 (en) | 2019-09-24 | 2019-09-24 | Device for connecting case body and lugs for a watch |
Country Status (4)
Country | Link |
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US (1) | US11517082B2 (en) |
EP (1) | EP3798742A1 (en) |
JP (1) | JP6980867B2 (en) |
CN (1) | CN112631110B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3958069B1 (en) * | 2020-08-18 | 2024-06-12 | The Swatch Group Research and Development Ltd | Watch case provided with a trim component |
EP4115763B1 (en) * | 2021-07-06 | 2023-10-04 | Goertek Inc | Wristband and wrist wearable device |
US20230119270A1 (en) * | 2021-10-20 | 2023-04-20 | Google Llc | Quick Release Band/Lug Mechanism for Smartwatch |
USD1040011S1 (en) * | 2024-04-02 | 2024-08-27 | Zhimin Chen | Watch strap connector |
USD1039421S1 (en) * | 2024-04-02 | 2024-08-20 | Zhimin Chen | Watch strap connector |
USD1038820S1 (en) * | 2024-04-02 | 2024-08-13 | Zhimin Chen | Watch strap connector |
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2019
- 2019-09-24 EP EP19199353.4A patent/EP3798742A1/en active Pending
-
2020
- 2020-08-12 US US16/991,100 patent/US11517082B2/en active Active
- 2020-08-24 JP JP2020140594A patent/JP6980867B2/en active Active
- 2020-09-24 CN CN202011018185.0A patent/CN112631110B/en active Active
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CH418985A (en) * | 1962-11-14 | 1966-04-30 | Bulova Watch Co Inc | Watch strap clip |
EP0197416A1 (en) | 1985-04-02 | 1986-10-15 | Eta SA Fabriques d'Ebauches | Watch case element and wristlet assembly and method for its manufacture |
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Also Published As
Publication number | Publication date |
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CN112631110A (en) | 2021-04-09 |
US20210085041A1 (en) | 2021-03-25 |
US11517082B2 (en) | 2022-12-06 |
JP2021051067A (en) | 2021-04-01 |
CN112631110B (en) | 2022-07-08 |
JP6980867B2 (en) | 2021-12-15 |
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