EP2604140A1 - Anti-rotation link - Google Patents
Anti-rotation link Download PDFInfo
- Publication number
- EP2604140A1 EP2604140A1 EP11194104.3A EP11194104A EP2604140A1 EP 2604140 A1 EP2604140 A1 EP 2604140A1 EP 11194104 A EP11194104 A EP 11194104A EP 2604140 A1 EP2604140 A1 EP 2604140A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- link
- strand
- clasp
- wing
- bracelet
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 230000000873 masking effect Effects 0.000 description 12
- 230000008901 benefit Effects 0.000 description 10
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010985 leather Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 210000000707 wrist Anatomy 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000002265 prevention Effects 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
- A44C5/02—Link constructions
-
- 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
- A44C5/18—Fasteners for straps, chains or the like
- A44C5/185—Attachment of fasteners to straps or chains
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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
- A44C5/0053—Flexible straps
-
- 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
-
- 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
- A44C5/18—Fasteners for straps, chains or the like
- A44C5/22—Fasteners for straps, chains or the like for closed straps
- A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/47—Strap-end-attaching devices
- Y10T24/4718—Watch pintle connected
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/47—Strap-end-attaching devices
- Y10T24/4782—Watch strap
Definitions
- the present invention relates to a particular link for a wristwatch.
- the present invention also relates to a fastening system of a bracelet strand to a clasp comprising such a link.
- clasps known as folding clasp, which allow easy donning the watch when the buckle is deployed, and then tighten the wrist in the closed position.
- This type of clasp generally comprises a metal cover closing over unfolding blades, one end of which is attached to the end of one of the strands of the bracelet, while the end of the other strand is attached to a strap. end of the lid.
- the clasp can be locked with a push mechanism acting in a transverse direction.
- Such clasps are often used in combination with bracelets whose strands are formed by rows of articulated metal links.
- the adjustment of the length of the bracelet is effected by removing one or more links at the end of one or more strands before attaching these ends to the clasp.
- the adjustment of the length is generally done simply by cutting a desired length of bracelet at the attachment end of the strand, before then connecting this end of the strand to the clasp or a connecting part of the clasp.
- This simple solution requires, however, to adapt the clasp or at least one attachment part of the clasp to the strand to partly hide the visible edge of the strand, and secondly prevent the rotation of the end of this strand by relative to the clasp, to prevent the edge of the strand protrudes from the skin of the user and makes the use of such a bracelet particularly inconvenient.
- the above length adjustment by simple cutting for a bracelet plastic can not therefore be made without changing the structure of the clasp, which prevents the use of the same clasps for plastic bracelets or leather, or even metal or ceramic, and therefore causes considerable productivity losses.
- clasp systems suitable for any type of bracelet that is to say, leather, fabric, plastic or metal, such as the clasp described in the document EP0081616 .
- the ends of the strands 9,13 of the bracelet can be fixed by means of bars 10,14 in different pairs of holes 7,11 of tubular pieces 1,2 in the form of an arc of circle s' engaging one in the other to define a nominal length for the bracelet, while the locking, provided by the cooperation of a rack 6 and an elastic member 23, allows a quick and easy fine adjustment.
- This type of clasp however, has a complex structure, difficult to machine, and raises reliability problems in the lock compared to conventional clasps folding clasp.
- Special devices are also known for attaching a strand of a bracelet to a clasp of the folding clasp type, such as for example the system described in the Swiss patent. CH689534 , according to which pins 13,14 are respectively arranged before a loop 19 of the clasp and on one of the blades of the folding clasp to cooperate with the perforations 21-26 of a strand 6 of the bracelet.
- This type of device is, however, suitable only for perforated strand bracelets and modifies the structure of the folding clasp of the clasp, which considerably limits the possibilities of use.
- An object of the present invention is in particular to provide a solution for the simple adjustment of the length of any type of bracelet, including rubber bracelets, without requiring significant structural changes at the clasp or fastening system clasp .
- a wristwatch link as claimed in the main claim, characterized in that it comprises a central core connecting a lower wing and an upper wing.
- a device for attaching a clasp to a bracelet strand comprising a fastening piece and such a link disposed between the fastening piece and the end of the strand, characterized in that a first inner surface of the upper wing a first inner surface of the lower wing and a first side wall of the core of the link form a first housing for one end of the strand, a second inner surface of the upper wing, a second inner surface of the lower wing and a second side wall of the web of the link form a second housing for a central part of the attachment part, the upper wing of the link covering the end of the strand and the part central part of the attachment.
- An advantage conferred by the link according to the invention relates to the improvement of the overall aesthetic of the watch and the wearing comfort of the user of the watch.
- Another advantage of the proposed solution is to provide a simple, easily machinable and low cost part that can accommodate different types of bracelets and clasps.
- An additional advantage of the proposed solution is to introduce a very simple intermediate piece between the end of a strand of the bracelet and a fastener of a clasp, instead of acting on one or the other. of these parts to provide benefits in terms of comfort and aesthetics.
- the figure 1 illustrates an example of a modified attachment piece 2, known from the prior art, clasp folding clasp and intended for use with a rubber strap.
- the clasp 3 shown conventionally comprises two folding blades which occupy only one thickness in the folded position, here a stretcher 31 formed of two arms between which is housed a central blade (not shown because the clasp is shown in the deployed position) .
- the stretcher 31 is mounted movably about a connecting axis to a part of the clasp, which itself is hingedly connected to an attachment part of the strand 2.
- the axis of rotation between the clasp 3 and the workpiece attachment of the strand 2 is embodied by the reference 21 in this figure.
- the end of a strand 1 of the bracelet is connected to the attachment piece 2 by means of a bar 22.
- a masking surface 20 is arranged on an upper face of the attachment piece 2.
- another masking surface is similarly arranged on the underside the attachment piece (not visible in this figure).
- This modified fastener 2 nevertheless requires a dedicated manufacturing method: it can thus be formed for example from a uniform metal plate stamped and then folded to form respectively the upper masking surface 20 and the lateral faces in which are machined then holes for housing the ends of the bar 22, while a plate forming a lower cover is fixed for example by welding to form the lower masking surface. It is also possible to cut and then fold the fastener piece in one piece and make the lower part to hide the underside of the strand by two folded ends which are welded to their joint. In both cases, the stamping requires complex tools making the production costs very high; moreover, the welding operation which increases the overall cost and the piece slows down the manufacturing process.
- fastener comprising the upper and lower masking surfaces and the side faces directly in the mass, but such a production method would be even more expensive because of the loss of material caused.
- machining any piece of open traditional fastener, that is to say without upper and lower masking surfaces, are required to prevent any locking of the last links or the winding of the leather at the axis of attachment, that is to say say the bar 22 in the illustrated example.
- This link according to the invention is preferably interposed between the end of the strand 1 and the attachment piece 2, so that it is no longer necessary to modify this attachment 2.
- the figure 2 shows an example of a preferred variant of such an intermediate link 4 interposed between the end of the strand 11 of a rubber strap and the attachment part 2 to the clasp 3.
- This link comprises a central core 41, which connects a lower wing 42 and an upper wing 43 whose functions are respectively identical to those of the masking surfaces of the modified attachment piece of the figure 1 : the upper wing 43 masks the wafer 111 of the end of the strand, since only the upper surface 431 of this wing is visible to the eyes of the user, while the lower wing 42 prevents the rotation of the strand around the bar 22 in the direction tending to bring the edge 11 of the end of the strand 1 into contact with the skin of the user.
- the wings can be understood by those skilled in the art as pieces whose two dimensions are much greater than the third, as is the case here in view of the ratio between their length, width and thickness. Most of these different parameters determining the shape of the link 4 according to the invention will be described in more detail using the Figure 4B .
- the intermediate link 4 does not include a clean fixing element around an axis, unlike a traditional bracelet link forming part of an articulated chain, but it is maintained, thanks to its particular shape having an H-shaped section. truncated, between the bar 22 for fixing the strand 1 of the bracelet and a central portion 23 of the attachment piece 2, whose lateral surface 232 and upper 231 are visible.
- the assembly of the link 4 is performed by inserting the first flanks 413 of the central core 41 between the side faces 24, whose inner surfaces 241 act as guide surfaces.
- the link 4 is thus caused to slide, along the parallel side faces 24 of the attachment piece 2, to the lateral surface 232 of the attachment piece 2, against which the right side wall 412 of the soul 41 of the link comes to a stop.
- the wafer 111 of the end of the strand 1 is brought into abutment against the side wall left 411 of the soul 41 of the link.
- the bar 22 is then inserted into the last of the through holes 116 arranged in the strand 1 to the wafer 111 of the end 11 of the strand 1 of the bracelet, whose length has for example been determined by cutting, and the bar is finally inserted into the pair of holes 221 of the attachment piece 2.
- This insertion of the bar 22 allows one hand to fix the strand 1 of the bracelet to the room d 2, and therefore indirectly to the clasp 3, and secondly parallel to close the space in which the link 4 has been inserted. The latter is therefore maintained between the central portion 23 of the attachment piece 2 and the end of the strand 11, fixed around the bar 22, without requiring any additional fastening element.
- the second flanks 423 of the lower flange 42 and the third flanks 433 of the upper flange 43 have been arranged in the same plane as that of the first flanks 413 of the link core. 41.
- the clasp 3 used in the context of the invention may be a clasp with a conventional folding clasp, as shown in FIG. figure 2 and which comprises an elongated cover 30 masking the folding blades, articulated about a common connecting pin 35, in the locked position.
- Pushers 34 are arranged on the lateral faces 33 of the cover for unlocking and holes 36 are also arranged on the lateral faces 33 of the clasp to insert fastening strips to a 2nd wristband strand whose length is not necessarily adjustable.
- the folding blades respectively consist of a stretcher 31 comprising two arms and a central blade 32 which is housed inside the two arms of the stretcher 31 in the folded position.
- the attachment piece 2 is here connected to the stretcher 31 via the attachment pin 21 to the clasp, while the central blade 32 is connected to the lid 30 of the clasp 3 via an axis.
- the central blade 32 and the stretcher 31 could also be reversed by connecting the central blade 32 to the fastening axis 21 of the clasp and the stretcher to the lid 30 via the connecting pin 37.
- the lid 30 of the clasp 3 has a protruding portion 301 extending to the left, that is to say towards the attachment piece 2.
- the upper wing 43 of the link 4 comprises a notch 434 of corresponding shape, so that there is no overlap between the link 4 and the clasp 3.
- the correspondence of the shapes of the notch 434 of the upper wing 43 of the link and that of the protruding portion is particularly visible on the figure 3 , which shows a top view of a strand of bracelet 1, the intermediate link of the invention 4, the attachment part 2 and the clasp 3 in the assembled and locked position.
- the visible space between the attachment part 2 and the clasp 3 is always at least partially masked, which has an aesthetic advantage.
- the cooperation of nonlinear shapes of the upper wing of the link 43 and cover 30 around the attachment axis 21 has the advantage, compared to the linear form for example of the left part of the upper wing 43 of the link 4, to be more difficult to pinch external elements, such as wear fabric worn by the user of the watch, because of the curved joint area between the gripping surfaces which tends to print a rotational movement and thus to reliberate what has been grasped.
- the notch 434 also creates an asymmetry between the left part and the right part of the upper wing 43 which allows to correctly orient the link for assembly and thus simplify the assembly operations, especially when they are done manually .
- the link 4 is preferably made of injected or molded plastic material, which allows to produce it easily and at low cost, because of the simplicity of the tooling required and the material used, and also makes it easy to associate its color to that of the bracelet if necessary. Furthermore, its elastic properties of flexibility are advantageous for the insertion of the end of the strand 1 on the attachment part 2, as will be seen later with the help of Figures 4A and 4B and therefore the mounting of the link which does not require a press fit with a high intensity, difficult to achieve without tools, such as for metal parts.
- the plastic material may be replaced by an elastomer, still more flexible, and allowing a better nipping of the wings on the end of the strand 1.
- the axis AA represented in this figure shows the sectional plane of the following figure 4A, as well as that of the Figure 4B which consists of an enlargement of the view of the link 4 illustrated on the Figure 4A .
- the link 4 is arranged between the attachment piece 2 and the end 11 of the strand 1, on which are arranged different holes 116 and different pre-cutting slugs 115 of the strand 1 during the adjustment of its length.
- the cutting is done at these openings 115 to ensure that the portion of the end of the strand 11 located beyond the hole in which will be inserted the bar 22 (visible on the figure 2 ) is not too long and frees enough space for the insertion of the link 4 between the wafer 111 of the end of the strand and the attachment piece 2, or more exactly the core 41 of the link 4, of thickness A.
- a second inner surface of the upper wing 4322, a second inner surface of the lower flange 4222 and the right side wall 412 of the core 41 of the link 4 release a space forming a second housing for the central portion 23 of the attachment piece 2.
- the right side wall 412 of the core is preferably brought to abut against the lateral surface 232 of the central portion 23 of the attachment piece 2 to ensure the better possible hold of the link 4 by preventing the formation of any degree of freedom in translation.
- the upper wing 43 of the link 4 completely covers the end of the strand 11 of the bracelet, and also the central portion of the attachment piece 23, respectively by its left and right parts.
- the lower wing 42 of the link 4 is in its contact with the skin of the user and the nip of the end of the strand 11 by the left parts respectively of the lower wings 42 and upper 43 prevents the wafer 111 of the end of the strand 11 is never brought into contact with it.
- the comfort of the user is therefore improved because only a flat surface will always be in contact with the skin of the user, but never any edge, even at the fastener of the clasp at the end of the bracelet strand.
- the proposed arrangement of the intermediate link 4 between the end 11 of the strand 1 of the bracelet and the attachment piece 2 thus makes it possible to obtain the same advantages as those which were previously achieved by a modified fastener, namely the masking the end of the strand 1 and the prevention of any contact of the wafer wafer with the skin of the user, without having to change any of the components of a traditional wristband-clasp assembly.
- a modified fastener namely the masking the end of the strand 1 and the prevention of any contact of the wafer wafer with the skin of the user, without having to change any of the components of a traditional wristband-clasp assembly.
- To the right of the Figure 4A we find the axis of attachment to the clasp 21, the connecting axis 37 of the clasp 3 to the central blade 32, visible on the figure 2 , and the cover 30, visible on the figure 3 .
- this link prevents any contact of the wafer 111 of the end of the strand 11 with the user's skin, this link is sometimes referred to as an "anti-rotation link” because it very strongly limits the rotation of this link. end around its axis of rotation, that is to say the bar 22, visible on the figure 2 . Indeed, any rotation in one direction or the other is prevented by the left parts of the upper wing 43 and the lower wing 42.
- the link 4 preferably comprises an upper flange 43, whose length L is equal to the sum of the length of its left part L1, the length of its straight part L2 and the thickness of the core A, and a wing 42, whose length I is similarly equal to the sum of the length of its left part I1, the length of its straight part I2 and the thickness of the core A, having different lengths, referenced respectively L and I for the upper wing 43 and the lower wing 42.
- an upper flange 43 whose length L is equal to the sum of the length of its left part L1, the length of its straight part L2 and the thickness of the core A
- a wing 42 whose length I is similarly equal to the sum of the length of its left part I1, the length of its straight part I2 and the thickness of the core A, having different lengths, referenced respectively L and I for the upper wing 43 and the lower wing 42.
- the lengths of the straight portions of the lower flanges I2 and upper flange L2 may also be different, with the same asymmetrical advantages evoked, but with a smaller gap in length, as in the preferred embodiment illustrated, or even identical lengths when it is not necessary to condition the rotation of the fastener 2 relative to the clasp in the direction of winding around the wrist.
- the upper surfaces 231 and 233 of the central part 23 of the fastener part 2 serve as guiding surface for respectively the second inner surface of the upper wing 4322 of the link 4 and the second surface. internal of the lower wing 4222 of the link during the fitting of the link 4 on the central portion 23 of the fastener 2.
- the first inner surface of the upper wing 4321 and the first inner surface of the lower wing 4221 of the link 4 serve as guide surface for respectively the upper surface of the end of the strand 112 and the lower surface of the end of the strand 113, except this time it is the end of the strand 11 which is fitted to the left part of the link 4 while the right part of the link is fitted on the central part 23 of the attachment piece 2.
- This arrangement therefore allows a very simple assembly and assembly of the link 4 with the attachment piece 2 first, then with the end 11 of the strand 1 next.
- the holding of the link between the end of the strand 11 and the attachment piece 2 is reinforced because no lateral movement of the link is possible once the it is arranged between the end of the strand 11 and the attachment piece 2.
- profiled wings can be used, that is to say -dire whose thickness is slightly decreasing from the core 41 to the outside of the wings. The profile makes it possible to prevent the bulges of the wings during the insertion of material between them, and thus optimally retain the effect of pinching and keeping in contact the inner surfaces of the wings with the end of the strand 1 and the central part 23 of the attachment part 2.
- the left part of the upper wing 43 has a first thickness E1
- the right part of the upper wing 43 has a second thickness E2
- the left part of the lower wing 42 has a third thickness e1
- the right part the lower wing 42 has a fourth thickness e2.
- Each of these thicknesses is essentially constant over the length of the wings or, as indicated previously, preferably slightly decreasing from the soul towards the end of the wings.
- the first thickness e1 is preferably smaller than the third thickness E1, but they may be identical, as is the second thickness e2, which is preferably less than or equal to the fourth thickness E2.
- the sum of the first and third thicknesses e1, E1 on the left side of the wings is preferably chosen to be smaller than the sum of the second and fourth thickness e2, E2 on the right side of the wings. for the pinching of the left part of the wings is destined for another piece, thicker than that of the right part of the wings; here the end of the strand 11 and the attachment piece 2 ..
- This conferred assembly security is redundant with respect to the asymmetry of the left (linear) and right (curve, with notch 434) ends of the upper wing; however, it can be useful for automated assembly or, in any case, as a double security system to avoid confusion.
- the link 4 according to the invention has been described in combination with a clasp type folding clasp; However, it will be understood that it can be used with any other type of clasp using a fastener 2 similar to that described above. It will also be understood that the particular shape of the link 4 makes it more generally suitable for insertion between other types of connecting pieces and not necessarily a strand of a bracelet and a clasp, the functions of masking and locking in rotation to prevent the exit of the parts inserted between the wings of the link which can remain identical
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- Adornments (AREA)
Abstract
Description
La présente invention concerne un maillon particulier pour montre bracelet. La présente invention concerne également un système d'attache d'un brin de bracelet à un fermoir comprenant un tel maillon.The present invention relates to a particular link for a wristwatch. The present invention also relates to a fastening system of a bracelet strand to a clasp comprising such a link.
On connaît dans l'art antérieur des fermoirs dits à boucle déployante, qui permettent d'enfiler facilement la montre lorsque la boucle est déployée, et de serrer ensuite le poignet en position fermée. Ce type de fermoir comprend en général un couvercle métallique se refermant par-dessus des lames déployantes, dont une extrémité est attachée à l'extrémité d'un des brins du bracelet, tandis que l'extrémité de l'autre brin est fixée à une extrémité du couvercle. Le fermoir peut être verrouillé à l'aide d'un mécanisme de poussoirs agissant dans une direction transversale.In the prior art known clasps known as folding clasp, which allow easy donning the watch when the buckle is deployed, and then tighten the wrist in the closed position. This type of clasp generally comprises a metal cover closing over unfolding blades, one end of which is attached to the end of one of the strands of the bracelet, while the end of the other strand is attached to a strap. end of the lid. The clasp can be locked with a push mechanism acting in a transverse direction.
De tels fermoirs sont souvent utilisés en combinaison avec des bracelets dont les brins sont formés par des rangées de maillons métalliques articulés. Dans ce cas, le réglage de la longueur du bracelet s'effectue en supprimant un ou plusieurs maillons à l'extrémité d'un ou de plusieurs brins avant d'attacher ces extrémités au fermoir.Such clasps are often used in combination with bracelets whose strands are formed by rows of articulated metal links. In this case, the adjustment of the length of the bracelet is effected by removing one or more links at the end of one or more strands before attaching these ends to the clasp.
Pour des bracelets en caoutchouc, le réglage de la longueur s'effectue en général simplement grâce à un découpage d'une longueur désirée de bracelet au niveau de l'extrémité d'attache du brin, avant de relier ensuite cette extrémité du brin au fermoir ou à une pièce de liaison du fermoir. Cette solution simple requiert toutefois d'adapter le fermoir ou au moins une pièce d'attache du fermoir au brin pour d'une part masquer la tranche visible du brin, et d'autre part empêcher la rotation de l'extrémité de ce brin par rapport au fermoir, pour éviter que la tranche du brin ne vienne en saillie sur la peau de l'utilisateur et rende l'usage d'un tel bracelet particulièrement incommode. L'ajustement ci-dessus de longueur par simple découpage pour un bracelet plastique ne peut par conséquent pas être effectué sans modifier la structure du fermoir, ce qui empêche d'utiliser les mêmes fermoirs pour des bracelets plastiques ou en cuir, voire même métalliques ou en céramique, et cause par conséquent des pertes de productivité considérables.For rubber bracelets, the adjustment of the length is generally done simply by cutting a desired length of bracelet at the attachment end of the strand, before then connecting this end of the strand to the clasp or a connecting part of the clasp. This simple solution requires, however, to adapt the clasp or at least one attachment part of the clasp to the strand to partly hide the visible edge of the strand, and secondly prevent the rotation of the end of this strand by relative to the clasp, to prevent the edge of the strand protrudes from the skin of the user and makes the use of such a bracelet particularly inconvenient. The above length adjustment by simple cutting for a bracelet plastic can not therefore be made without changing the structure of the clasp, which prevents the use of the same clasps for plastic bracelets or leather, or even metal or ceramic, and therefore causes considerable productivity losses.
On connait par ailleurs des systèmes de fermoirs adaptés à tout type de bracelet, c'est-à-dire en cuir, tissu, plastique ou métal, comme par exemple le fermoir décrit dans le document
On connaît également des dispositifs particuliers pour l'attache d'un brin de bracelet à un fermoir du type à boucle déployante, comme par exemple le système décrit dans le brevet suisse
Il existe donc un besoin pour des montres bracelets exemptes de ces limitations de l'art antérieur connues en termes de contraintes structurelles et/ou de fiabilité de verrouillage.There is therefore a need for wristwatches free of these limitations of the prior art known in terms of structural constraints and / or locking reliability.
Un but de la présente invention est en particulier de fournir une solution permettant le réglage simple de la longueur de tout type de bracelet, notamment des bracelets en caoutchouc, sans requérir de changements structurels importants au niveau du fermoir ou au système d'attache au fermoir.An object of the present invention is in particular to provide a solution for the simple adjustment of the length of any type of bracelet, including rubber bracelets, without requiring significant structural changes at the clasp or fastening system clasp .
Ces buts sont atteints grâce à un maillon pour montre-bracelet tel que revendiqué dans la revendication principale, caractérisé en ce qu'il comprend une âme centrale reliant une aile inférieure et une aile supérieure.These goals are achieved through a wristwatch link as claimed in the main claim, characterized in that it comprises a central core connecting a lower wing and an upper wing.
Ces buts sont également atteints grâce à un dispositif de fixation d'un fermoir à un brin de bracelet comprenant une pièce d'attache et un tel maillon disposé entre la pièce d'attache et l'extrémité du brin, caractérisé en ce qu'une première surface interne de l'aile supérieure une première surface interne de l'aile inférieure et une première paroi latérale de l'âme du maillon forment un premier logement pour une extrémité du brin, qu'une deuxième surface interne de l'aile supérieure, une deuxième surface interne de l'aile inférieure et une deuxième paroi latérale de l'âme du maillon forment un deuxième logement pour une partie centrale de la pièce d'attache, l'aile supérieure du maillon recouvrant l'extrémité du brin et la partie centrale de la pièce d'attache.These objects are also achieved by means of a device for attaching a clasp to a bracelet strand comprising a fastening piece and such a link disposed between the fastening piece and the end of the strand, characterized in that a first inner surface of the upper wing a first inner surface of the lower wing and a first side wall of the core of the link form a first housing for one end of the strand, a second inner surface of the upper wing, a second inner surface of the lower wing and a second side wall of the web of the link form a second housing for a central part of the attachment part, the upper wing of the link covering the end of the strand and the part central part of the attachment.
Un avantage conféré par le maillon selon l'invention concerne l'amélioration de l'esthétique globale de la montre et du confort au porter de l'utilisateur de la montre.An advantage conferred by the link according to the invention relates to the improvement of the overall aesthetic of the watch and the wearing comfort of the user of the watch.
Un autre avantage de la solution proposée est de fournir une pièce simple, facilement usinable et à faible coût pouvant s'adapter à différents types de bracelets et de fermoirs.Another advantage of the proposed solution is to provide a simple, easily machinable and low cost part that can accommodate different types of bracelets and clasps.
Un avantage additionnel de la solution proposée est d'introduire une pièce intermédiaire très simple entre l'extrémité d'un brin du bracelet et une pièce d'attache d'un fermoir, au lieu d'agir sur l'une ou l'autre de ces pièces pour procurer des avantages en termes de confort et d'esthétique. Le fait de ne nécessiter aucun changement ni au niveau du brin ni au niveau du fermoir augmente considérablement la modularité de la solution proposée et procure d'importants gains en termes de productivité pour la fabrication simultanée de montres pourvues de différents types de bracelets.An additional advantage of the proposed solution is to introduce a very simple intermediate piece between the end of a strand of the bracelet and a fastener of a clasp, instead of acting on one or the other. of these parts to provide benefits in terms of comfort and aesthetics. The fact of not requiring any changes in the strand or in the clasp considerably increases the modularity of the proposed solution and provides significant productivity gains for the simultaneous manufacture of watches with different types of bracelets.
D'autres caractéristiques et avantages ressortiront plus clairement de la description détaillée de divers modes de réalisation préférentiels et des dessins annexés, dans lesquels:
- la
figure 1 montre une vue de dessus d'un maillon d'attache de fermoir modifié, connu de l'art antérieur; - la
figure 2 montre une vue en perspective d'un maillon intermédiaire selon un mode de réalisation préférentiel de l'invention et son positionnement par rapport au bracelet et au fermoir; - la
figure 3 montre une vue de dessus d'un maillon intermédiaire selon un mode de réalisation préférentiel de l'invention, en position assemblée entre le brin et le maillon d'attache du fermoir; - la
figure 4A montre une vue en coupe sagittale selon l'axe A-A illustré à lafigure 3 du maillon intermédiaire selon le même mode de réalisation préférentiel de l'invention; - la
figure 4B montre un agrandissement du maillon de lafigure 4A , en coupe selon l'axe A-A illustré à lafigure 3 , du maillon intermédiaire selon le même mode de réalisation préférentiel de l'invention.
- the
figure 1 shows a top view of a modified clasp fastener link, known from the prior art; - the
figure 2 shows a perspective view of an intermediate link according to a preferred embodiment of the invention and its positioning relative to the bracelet and the clasp; - the
figure 3 shows a top view of an intermediate link according to a preferred embodiment of the invention, in the assembled position between the strand and the fastening link of the clasp; - the
Figure 4A shows a sagittal section along the axis AA illustrated in FIG.figure 3 intermediate link according to the same preferred embodiment of the invention; - the
Figure 4B shows an enlargement of the link of theFigure 4A , in section along the axis AA illustrated in thefigure 3 of the intermediate link according to the same preferred embodiment of the invention.
La
Cette pièce d'attache 2 modifiée nécessite néanmoins un mode de fabrication dédié: elle peut être ainsi par exemple formée à partir d'une plaque métallique uniforme étampée puis pliée pour former respectivement la surface de masquage 20 supérieure et les faces latérales dans lesquelles sont usinés ensuite des trous pour loger les extrémités de la barrette 22, tandis qu'une plaque formant un capot inférieur est fixée par exemple par soudage pour former la surface de masquage inférieure. Il est également possible de découper puis plier la pièce d'attache d'un seul tenant et de réaliser la partie inférieure permettant de masquer le dessous du brin par deux extrémités repliées qui sont soudées à leur jointure. Dans les deux cas, l'étampage nécessite un outillage complexe rendant les coûts de production très élevés; de plus, l'opération de soudage qui renchérit le coût global et pièce ralentit le processus de fabrication. On peut également imaginer usiner la pièce d'attache comportant les surfaces de masquage supérieure et inférieure ainsi que les faces latérales directement dans la masse, mais un tel mode de production serait encore plus onéreux en raison des pertes de matière occasionnées. Quel que soit le mode d'usinage choisi, de telles pièces d'attache ne pourront plus être utilisées pour d'autres types de bracelet, par exemple des bracelets en cuir, ou encore en céramique ou en métal, pour lesquels une pièce d'attache traditionnelle ouverte, c'est-à-dire sans surfaces de masquage supérieures et inférieures, sont requis pour éviter tout blocage des derniers maillons ou de l'enroulement du cuir au niveau de l'axe d'attache, c'est-à-dire la barrette 22 dans l'exemple illustré.This modified
Dans ce qui suit, un maillon est décrit pour permettre de bénéficier des mêmes avantages en termes de confort et d'esthétique que la solution de l'art antérieur connue de la
Ce maillon selon l'invention est de préférence intercalé entre l'extrémité du brin 1 et la pièce d'attache 2, de telle sorte qu'il n'est plus nécessaire de modifier cette pièce d'attache 2. La
Comme on peut le constater sur la
Le fermoir 3 utilisé dans le cadre de l'invention peut être un fermoir à boucle déployante classique, comme illustré sur la
Sur la
Le maillon 4 est réalisé de préférence en matériau plastique injecté ou moulé, ce qui permet de le produire aisément et à bas coûts, en raison de la simplicité de l'outilllage requis et du matériau utilisé, et permet également d'associer facilement sa couleur à celle du bracelet si nécessaire. Par ailleurs, ses propriétés élastiques de souplesse sont avantageuses pour le l'insertion de l'extrémité du brin 1 sur la pièce d'attache 2, comme on le verra plus tard à l'aide des
Sur la
Sur la
Comme on peut le constater sur la
Du fait que le maillon 4 intermédiaire empêche tout contact de la tranche 111 de l'extrémité du brin 11 avec la peau de l'utilisateur, ce maillon est parfois qualifié de « maillon anti-rotation » car il limite très fortement la rotation de cette extrémité autour de son axe de rotation, c'est-à-dire la barrette 22, visible sur la
Les longueurs des parties droites des ailes inférieure I2 et supérieure L2 peuvent être également différentes, avec les mêmes avantages d'asymétrie suscités, mais avec un écart de longueur moindre, comme selon le mode de réalisation préférentiel illustré, voire même des longueurs identiques lorsqu'il n'est pas nécessaire de conditionner la rotation de la pièce d'attache 2 par rapport au fermoir dans le sens de l'enroulement autour du poignet. Les surfaces supérieure 231 et inférieure 233 de la partie centrale 23 de la pièce d'attache 2 servent de surface de guidage pour respectivement la deuxième surface interne de l'aile supérieure 4322 du maillon 4 et la deuxième surface interne de l'aile inférieure 4222 du maillon lors de l'emmanchement du maillon 4 sur la partie centrale 23 de la pièce d'attache 2. Similairement, la première surface interne de l'aile supérieure 4321 et la première surface interne de l'aile inférieure 4221 du maillon 4 servent comme surface de guidage pour respectivement la surface supérieure de l'extrémité du brin 112 et la surface inférieure de l'extrémité du brin 113, sauf que cette fois-ci c'est l'extrémité du brin 11 qui est emmanchée à dans la partie gauche du maillon 4 alors que la partie droite du maillon est emmanchée sur la partie centrale 23 de la pièce d'attache 2. Cet agencement permet par conséquent un montage et un assemblage très simple du maillon 4 avec la pièce d'attache 2 tout d'abord, puis avec l'extrémité 11 du brin 1 ensuite.The lengths of the straight portions of the lower flanges I2 and upper flange L2 may also be different, with the same asymmetrical advantages evoked, but with a smaller gap in length, as in the preferred embodiment illustrated, or even identical lengths when it is not necessary to condition the rotation of the
Dans le mode de réalisation préférentiel illustré à la
Selon le mode de réalisation préférentiel décrit à la
Le maillon 4 selon l'invention a été décrit en combinaison avec un fermoir du type à boucle déployante; on comprendra toutefois qu'il pourra être utilisé avec tout autre type de fermoir utilisant une pièce d'attache 2 similaire à celle qui a été décrite dans ce qui précède. On comprendra également que la forme particulière du maillon 4 permet de le destiner plus généralement à une insertion entre d'autres types de pièces de liaison et pas nécessairement un brin de bracelet et un fermoir, les fonctions de masquage et de blocage en rotation pour empêcher la sortie des parties insérées entre les ailes du maillon pouvant demeurer identiquesThe link 4 according to the invention has been described in combination with a clasp type folding clasp; However, it will be understood that it can be used with any other type of clasp using a
Claims (12)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11194104.3A EP2604140B1 (en) | 2011-12-16 | 2011-12-16 | Anti-rotation link |
US13/709,653 US8601784B2 (en) | 2011-12-16 | 2012-12-10 | Anti-rotation link |
CN201210548415.3A CN103156341B (en) | 2011-12-16 | 2012-12-17 | Anti-rotation link |
JP2012274313A JP5592465B2 (en) | 2011-12-16 | 2012-12-17 | Anti-rotation coupling |
HK13113959.7A HK1186360A1 (en) | 2011-12-16 | 2013-12-16 | Anti-rotation link |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11194104.3A EP2604140B1 (en) | 2011-12-16 | 2011-12-16 | Anti-rotation link |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2604140A1 true EP2604140A1 (en) | 2013-06-19 |
EP2604140B1 EP2604140B1 (en) | 2014-08-13 |
Family
ID=45444424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11194104.3A Active EP2604140B1 (en) | 2011-12-16 | 2011-12-16 | Anti-rotation link |
Country Status (5)
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---|---|
US (1) | US8601784B2 (en) |
EP (1) | EP2604140B1 (en) |
JP (1) | JP5592465B2 (en) |
CN (1) | CN103156341B (en) |
HK (1) | HK1186360A1 (en) |
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Also Published As
Publication number | Publication date |
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HK1186360A1 (en) | 2014-03-14 |
JP5592465B2 (en) | 2014-09-17 |
US20130152542A1 (en) | 2013-06-20 |
US8601784B2 (en) | 2013-12-10 |
EP2604140B1 (en) | 2014-08-13 |
CN103156341A (en) | 2013-06-19 |
JP2013126544A (en) | 2013-06-27 |
CN103156341B (en) | 2015-02-11 |
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