EP2261757A1 - Method and device for attaching a glass to a bezel - Google Patents
Method and device for attaching a glass to a bezel Download PDFInfo
- Publication number
- EP2261757A1 EP2261757A1 EP09162411A EP09162411A EP2261757A1 EP 2261757 A1 EP2261757 A1 EP 2261757A1 EP 09162411 A EP09162411 A EP 09162411A EP 09162411 A EP09162411 A EP 09162411A EP 2261757 A1 EP2261757 A1 EP 2261757A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ice
- bezel
- recess
- protruding part
- driving
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000011521 glass Substances 0.000 title claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 239000011324 bead Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 235000015243 ice cream Nutrition 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000000763 evoking effect Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
- G04B37/0008—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
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/02—Sealing crystals or glasses
-
- 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
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to the field of watchmaking. It relates more specifically to a method of fixing an ice on a telescope. The invention also relates to an ice and a bezel for the implementation of this fixing method.
- An object of the present invention is therefore to provide a solution free from the drawbacks of the prior art evoked.
- Another object of the present invention is to provide a simple assembly, with few parts and easy to implement.
- a watch-eye comprising at least one protruding part and / or a recess, characterized in that the protruding part and / or the recess are intended for a driving operation, as well as a cover glass.
- watch comprising at least one protruding part and / or a recess, characterized in that the protruding part and / or the recess are intended for a driving operation.
- an assembly comprising an ice and a watch bezel, the lens comprising at least one protruding part and / or a recess, the bezel comprising at least one protruding part and / or a recess, the device being characterized in that at least one protruding part can be driven into a said recess.
- An advantage of the proposed solution is to be adapted especially for plastic windows and glasses, for which the plastic deformation dispenses with the use of a seal.
- Another advantage of the proposed solution is to require only a relatively simple tool for mounting.
- An additional advantage of the proposed solution is to facilitate the machining of the assembly parts of the bezel and the ice of the watch.
- the invention involves the concept of driving for the assembly of one or more protruding parts, or "males”, which are housed by pressure in one or more recesses, that is to say, housing "females".
- the assembly of these male / female elements is ensured by the elastic deformation of at least one of the parts involved in the driving operation, which allows the penetration of the "male” element into the "female” element.
- Hunting is also often referred to as crimping, especially when stones, which may be valuable, must be forced into an orifice.
- the holding in assembled position of the parts is then guaranteed by the friction forces exerted between the contact surfaces of the assembled parts, while at least one of the two assembly parts continues to undergo elastic deformation forces.
- the Figure 1A illustrates a bezel 1 and an ice 2 unassembled according to a preferred embodiment of the invention. It is possible to distinguish, on the telescope, the external lateral walls 6 which are substantially vertical and an upper external face 5 forming an almost horizontal surface, slightly convex to best fit the contours of the surface of the ice as will be seen later in view of the following figures.
- the bezel 1 is affixed to the peripheral rim 11 of the glass 1, which is provided according to this example with several holes 4 acting as recesses in which are plugged with the studs 3 of the telescope, visible on the Figure 1B showing the same bezel 1 and ice 2 views from below, and which act as protruding parts for the hunting operation.
- the pins 3 and the holes 4 are designed such that they have corresponding "male” and “female” shapes to allow the driving operation; we can imagine any three-dimensional geometric shape meeting this requirement of shape matching.
- the bezel is square in shape; however any other geometrical form (round, oval, trapezoidal ...) could be considered in the context of the invention.
- the inclination of the walls forming the edge of the ice (reference 10) or the bezel (reference 6) could be modified for aesthetic or functional considerations, such as the ease of machining parts, without altering the method nor the fixing device of the invention. It is the same for the shape of the surface of the glass 9 and the surface of the outer face of the telescope 6.
- the direction for hunting when assembling the telescope on the ice, or conversely, is indicated by the arrow 14, which also indicates the direction of the chase.
- the direction of the arrow 14 is here substantially perpendicular to the plane formed by the upper outer face of the ice 9; it also allows, with the geometric shapes used for the telescope, to fix the telescope on the ice 2 while holding the ice stationary during the driving step. This characteristic can be interesting to simplify the tools required for assembly, avoiding complex and expensive tools such as hydraulic or pneumatic presses, because a simple stem can be enough to fix the telescope on the ice.
- the Figure 1B which illustrates a symmetrical view of the Figure 1A relative to the horizontal plane, reveals the internal faces of the glass 13 and the bezel 8. It is always clear the peripheral rim 11 of the ice, and the opposite end of the holes 4. One can also see the edge internal side of the telescope 7 on which the edge of the ice 10 will be installed.
- the protruding parts that form the tenons 3 are located on this inner face 8 of the bezel 2.
- the direction of driving 14 according to this figure indicates that the ice 2 seems to be affixed to the bezel 1, which is therefore the opposite assembly of that mentioned in the previous Figure 1A.
- ice 2 is indeed attached to the bezel 1, and not the opposite; it is the ice 2 which is affixed to the telescope 1 for the driving operation.
- the bezel 1 can thus in this case remain stationary during this hunting operation.
- the figure 2 illustrates a sectional view of the ice 2 and the bezel 1 of the preferred embodiment of the Figures 1A and 1B once they have been assembled, that is, after the hunting operation.
- the contour of the outer lateral faces 6 and upper outer face 5 of the bezel 2 is distinguished, as well as the face outer upper 9 of the ice 2.
- the peripheral rim 11 encircling the ice and giving the ice section in the chosen plane a hat-like shape.
- the upper outer faces of the bezel 5 and the ice 9 are designed so that they extend mutually once the hunting step performed. According to the variant shown, they form a quasi-continuous contour slightly curved on the outer face of the watch visible by the user; the skilled person could imagine other forms of contours.
- these lateral edges (7, 10) being formed by substantially vertical walls and which are free from friction during the driving step.
- This exemption of friction forces makes it possible to better distribute the force on the holes 4 and the tenons 3 which are the parts solicited for the driving operation; it is all the better realized that the orientation of the walls of the side edges (7,10) is parallel to the direction of driving, whose direction is indicated by the arrow 14.
- the protruding parts are the tenons 3 arranged on the inner face 8 of the bezel 2, while the recesses are the holes 4 housed in the peripheral rim 11 of the glass 2.
- the holes are not necessary for the holes to pass through the peripheral rim 11 from one side to the other, but it is nevertheless necessary, according to this embodiment, for the recesses to be made on the upper face 12 of the peripheral rim 11 of the ice 2.
- the arrangement of the recesses and protuberances may be distributed on the inner face 8 of the bezel and the upper face 12 of the peripheral rim 11 of the ice 2, that is to say that the inner face 8 may comprise only protuberances, that recesses, or both, for example alternately (ie a hole followed by a protuberance), and the same is true for the upper face 12 of the peripheral rim 11 of the ice 2.
- the figure 2 bis illustrates the same sectional view as the figure 2 for a very similar embodiment, identical in all respects apart from the inversion of the conicities of the pins 3 and holes 4 with respect to the figure 2 .
- the embodiment illustrated in this figure 2 bis it has been chosen to reverse only the taper of the hole 4; this variant has the advantage, as will be seen later, to be able to drown the end of the tenon in glue to improve the behavior of the bezel 1 on the ice 2.
- the skilled person will understand that it is also possible to invert the taper of the post 3 also.
- the cooperation troutenon takes an hourglass shape, which assumes that the material of the post 3 is less deformable than that of the hole 4, which thus matches the shape of the post 3.
- FIG. 3 shows another embodiment of the invention, which constitutes a preferred variant in the same way as that illustrated by FIG. figure 2 . It can be seen that the references are identical in all respects, but that the arrangement of the pins 3 and holes 4 has been reversed with respect to the embodiment of the invention. figure 2 .
- the tenons 3 are now housed on the upper face 12 of the peripheral rim 11 of the ice 2, while the recesses 4 are now arranged in the inner face 8 of the bezel 1.
- the direction of hunting indicated by the arrow 14 is preferably inverted and oriented upwards, so that the "male" elements (the pins 3) are plugged into the holes 4, and not the opposite, namely affix and press the bezel 1 provided of holes 4 on the ice 2.
- the angle of the tenon 3 is greater than that of the hole 4 of the bezel 1 to have better interference and thus guarantee greater frictional forces to improve the holding the telescope 1 on the ice 2.
- An advantage of the variant illustrated by the figure 2 compared to that of the figure 3 is that it is possible to drown the end protuberances that emerge from the hole after the driving step, for example with glue, so that the bezel 2 is not easily torn off. It is certainly also possible to have glue points at the bottom of the recesses 3 for the variant of the figure 3 or any variant according to which the recesses 3 are not through; however, the gluing step is then simultaneous with that of hunting and not posterior, because the glue must be in place before the chase takes place. In this case the presence of glue could, however, alter the proper operation of the driving step or be pushed back to the ends of the fixing holes, which is not desirable.
- the ice 2 or the bezel 1 are made of plastic, which has elastic properties suitable for driving.
- the invention is particularly adapted to an embodiment in which both the bezel 1 and the ice 2 are made of plastic, for example the PA bezel with a modulus of elasticity of about 2000 MPa and PMMA ice cream. a modulus of elasticity slightly higher, of the order of 3000 MPa.
- the plurality of recesses 4 formed by the holes are made of a material harder than the plurality of protuberant portions 3 that form the tenons 3, so that the tenons 3 tend to deform in the holes 4.
- Such variant is preferred to facilitate machining parts to assemble because it seems easier to machine holes than protuberances in a hard material, unless the hardest part can be obtained by molding for example, so that losses of material are minimized. In this case, or in any case where an economy of production costs can be achieved, it may also be envisaged to make the protuberances 3 in a harder material than that used for recesses. Those skilled in the art will thus be able to observe that the invention is also suitable for a mixed solution, according to which the ice-cream 2 is made with a relatively hard crystalline material or plastic, and the bezel 1, for example made of metal.
- a plurality of protruding portions 3 and recesses 4 are used for the driving operation.
- the protruding parts consist of tenons 3 and the recesses consist of holes 4.
- the fixing device according to this embodiment is characterized in that the holes 4 and the tenons 3 have a conical shape, in order to facilitate the operation of chassage.
- the illustration of the figure 2 shows a trapezoidal section for each of the tenons 3 and holes 4, in other words the virtual cone generating the shape of the holes 4 and tenons 3 is truncated.
- the machining of several holes 4 on each of the four parts forming the peripheral rim 11 of the ice 2 makes it possible to easily obtain a total driving force greater than 100 Newtons.
- Preferred embodiments of the invention will thus use, for glasses 1 and plastic ice 2, driving forces of between 50 and 200 Newtons, for which many possibilities are offered for the adjustment of parameters such as diameters holes and tenons, as well as the number of pairs of holes / posts per wall.
- the taper of the hole 4 relative to that of the post 3 may also be adjusted. to improve the mutual marriage of the surfaces involved during hunting.
- the angle of the taper of the pin will thus be chosen preferably slightly less than that of the taper of the taper of the hole.
- Embodiments in which the taper of the stud is greater than that of the hole are however also possible.
- the Figures 4A and 4B show the bezel 1 and the ice 2 in the assembled position, respectively seen from above and from below.
- the contour formed by the external lateral wall of the telescope 6 is always seen and it is possible to observe the continuity of the surfaces between the upper external surface of the lens 9 and that of the telescope 5; however, the tenons and holes are now hidden.
- the Figure 4B which shows the same assembly of the telescope 1 and the ice underneath, reveals, apart from the inner face of the telescope 13, the outer wall of the telescope 6 and the lower part of the peripheral rim 11 of the ice 2, the end of the tenons 3 which may slightly exceed the holes of the holes 4.
- the recesses 3 and protuberances 4 used for the driving step are only partially hidden once this step performed; however, according to an alternative variant of the invention illustrated in particular by means of the Figures 5A, 5B and 6 , the recesses and protuberances may, in the context of the invention, be completely hidden, providing an aesthetic effect to the user of the watch on which the lens 1 and the bezel 2 are mounted.
- FIGS. 5A and 5B similar to Figures 1A, 1B Previously, illustrate a variant of the invention that the protruding portion of the invention no longer consists of a plurality of tenons but an annular bead 3 ', while the recess consists of an annular groove 4'.
- the annular groove 4 ' housed in the peripheral rim 11 of the ice 2, and that consequently, as illustrated in FIG. Figure 5B , the annular bead 3 'is located on the inner face 8 of the telescope 1.
- annular groove and bead 3', 4 ' can be indifferently machined in the peripheral rim and the lower part of the 1, so that a device and a fixing method using an annular bead 3 'housed disposed on the upper face 12 of the peripheral rim 11 of the window 2 cooperating with an annular groove 4' housed the inner face 8 of the glasses are also covered by the invention.
- the shape of the annular bead and groove 3 ', 4' according to this embodiment will preferably be chosen of non-circular section, for example slightly oval or square as on the Figures 5A and 5B .
- the groove 4 'and the bead 3' may also not extend over the entire peripheral rim 11 and form only a partial belt of this rim 11.
- FIG. 5A and 5B are sectional views of this alternative variant comprising an annular groove 4 'and an annular bead 3'.
- the trapezoidal section of the groove 4 'and the bead 3' to facilitate the driving step, similarly to the conical shape of the holes and pins of the preferred embodiment illustrated in FIG. figure 2 .
- the angle of the tenon 3 is greater than that of the hole 4 of the telescope 1, as on the figure 3 , in order to have a better interference and thus to guarantee greater frictional forces to improve the behavior of the telescope 1 on the ice 2.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Toys (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
Description
La présente invention se rapporte au domaine de l'horlogerie. Elle concerne plus précisément un procédé de fixation d'une glace sur une lunette. L'invention concerne également une glace et une lunette pour la mise en oeuvre de ce procédé de fixation.The present invention relates to the field of watchmaking. It relates more specifically to a method of fixing an ice on a telescope. The invention also relates to an ice and a bezel for the implementation of this fixing method.
Pour le montage des glaces sur des lunettes de montre, on connaît des méthodes de montage dites à friction, selon lesquelles une glace est chassée dans un évidemment annulaire d'une lunette. Une telle méthode de fixation, décrite par exemple dans le document
Une autre méthode de fixation est proposée dans le document
D'autres méthodes de fixation sont également connues, notamment pour des lunettes et glaces en matière plastique, et qui utilisent du collage, du soudage par ultrason, ou encore le clipsage d'éléments de fixation par déformation élastique lors du montage. Le collage nécessite toutefois une mise en oeuvre laborieuse pour une production de masse; le soudage ultrasonique requiert quant à lui de gros investissements. Enfin, l'usinage de géométries compliquées pour les parties à clipser nécessite aussi des outils de production complexes.Other methods of attachment are also known, especially for glasses and plastic windows, and which use gluing, ultrasonic welding, or the clipping of fasteners by elastic deformation during assembly. Bonding, however, requires laborious implementation for mass production; ultrasonic welding requires large investments. Finally, the machining of complicated geometries for the parts to be clipped also requires complex production tools.
Un but de la présente invention est par conséquent de proposer une solution exempte des inconvénients de l'art antérieur suscités.An object of the present invention is therefore to provide a solution free from the drawbacks of the prior art evoked.
Un autre but de la présente invention est de proposer un montage simple, avec peu de pièces et facile à mettre en oeuvre.Another object of the present invention is to provide a simple assembly, with few parts and easy to implement.
Ces buts sont atteints grâce à une méthode de fixation d'une glace à une lunette de montre, la glace comprenant au moins une partie protubérante et/ou un évidement, la lunette comprenant au moins une partie protubérante et/ou un évidement, la méthode étant caractérisée en ce qu'elle comprend une étape de chassage de la partie protubérante dans l'évidement.These aims are achieved by a method of attaching an ice to a watch bezel, the lens comprising at least one protruding part and / or a recess, the bezel comprising at least one protruding part and / or a recess, the method characterized in that it comprises a step of driving the protruding portion into the recess.
Ces buts sont également atteints grâce à une lunette de montre comprenant au moins une partie protubérante et/ou un évidement, caractérisée en ce que la partie protubérante et/ou l'évidement sont destinés à une opération de chassage, ainsi qu'une glace de montre comprenant au moins une partie protubérante et/ou un évidement, caractérisée en ce que la partie protubérante et/ou l'évidement sont destinés à une opération de chassage.These objects are also achieved by means of a watch-eye comprising at least one protruding part and / or a recess, characterized in that the protruding part and / or the recess are intended for a driving operation, as well as a cover glass. watch comprising at least one protruding part and / or a recess, characterized in that the protruding part and / or the recess are intended for a driving operation.
Ces buts sont encore atteints grâce à un ensemble comprenant une glace et une lunette de montre, la glace comprenant au moins une partie protubérante et/ou un évidement, la lunette comprenant au moins une partie protubérante et/ou un évidement, le dispositif étant caractérisé en ce qu'au moins une partie protubérante peut être chassée dans un dit évidement.These goals are still achieved through an assembly comprising an ice and a watch bezel, the lens comprising at least one protruding part and / or a recess, the bezel comprising at least one protruding part and / or a recess, the device being characterized in that at least one protruding part can be driven into a said recess.
Un avantage de la solution proposée est d'être adaptée notamment pour des glaces et des lunettes en plastique, pour lesquelles la déformation plastique dispense de l'usage d'un joint.An advantage of the proposed solution is to be adapted especially for plastic windows and glasses, for which the plastic deformation dispenses with the use of a seal.
Un autre avantage de la solution proposée est de ne requérir qu'un outillage relativement simple pour le montage.Another advantage of the proposed solution is to require only a relatively simple tool for mounting.
Un avantage additionnel de la solution proposée est de faciliter l'usinage des parties d'assemblage de la lunette et de la glace de la montre.An additional advantage of the proposed solution is to facilitate the machining of the assembly parts of the bezel and the ice of the watch.
Ainsi les coûts de fabrication sont réduits grâce à la simplification de l'outillage requis pour l'usinage des pièces ainsi que leur montage; par ailleurs la réduction du temps de mise en oeuvre permet d'augmenter le débit et donc de gagner en efficacité pour la production.Thus manufacturing costs are reduced by simplifying the tools required for machining parts and their assembly; Moreover, the reduction of the implementation time makes it possible to increase the flow rate and thus to gain in efficiency for production.
D'autres caractéristiques et avantages ressortiront plus clairement de la description détaillée de divers modes de réalisation et des dessins annexés, sur lesquels:
- les
figures 1A et 1B montrent des vue en perspective d'une lunette et d'une glace selon un mode de réalisation préférentiel de l'invention; - la
figure 2 montre une vue en coupe des lunette et glace selon le mode de réalisation préférentiel de l'invention illustré par lesfigures 1A et 1B ; - la
figure 2 bis montre une vue en coupe des lunette et glace selon le mode de réalisation préférentiel de l'invention illustré par lesfigures 1A et 1B , similairement à lafigure 2 mais avec des tenons et des trous ayant des conicités inversées. - la
figure 3 montre une vue en coupe des lunette et glace d'un autre mode de réalisation préférentiel selon l'invention; - les
figures 4A et 4B montrent des vues en perspective des lunettes et glaces desfigures 1A et 1B en version assemblée; - les
figures 5A et 5B montrent des vues en perspective d'une lunette et d'une glace selon un mode de réalisation alternatif de l'invention; - la
figure 6 montre une vue en coupe du mode des lunette et glace selon le mode de réalisation illustré par lesfigures 5A et 5B .
- the
Figures 1A and 1B show perspective views of a bezel and an ice according to a preferred embodiment of the invention; - the
figure 2 shows a sectional view of the bezel and ice according to the preferred embodiment of the invention illustrated by theFigures 1A and 1B ; - the
figure 2 bis shows a sectional view of the bezel and ice according to the preferred embodiment of the invention illustrated by theFigures 1A and 1B , similarly to thefigure 2 but with tenons and holes with inverted conicities. - the
figure 3 shows a sectional view of the bezel and ice of another preferred embodiment according to the invention; - the
Figures 4A and 4B show perspective views of glasses and ice creamsFigures 1A and 1B in assembled version; - the
Figures 5A and 5B show perspective views of a bezel and an ice according to an alternative embodiment of the invention; - the
figure 6 shows a sectional view of the mode of glasses and ice according to the embodiment illustrated by theFigures 5A and 5B .
L'invention fait intervenir la notion de chassage pour l'assemblage d'une ou plusieurs parties protubérantes, ou « mâles », qui sont logées par pression dans un ou plusieurs évidements, c'est-à-dire des logements « femelles ». L'assemblage de ces éléments mâles/femelle est assurée grâce à la déformation élastique d'au moins une des parties impliquées dans l'opération de chassage, qui permet la pénétration de l'élément « mâle » dans l'élément « femelle ». Le chassage est aussi souvent qualifié de sertissage, notamment lorsque des pierres, éventuellement précieuses, doivent être forcées dans un orifice. Le maintien en position assemblée des pièces est garanti ensuite par les forces de frottement s'exerçant entre les surfaces de contact des pièces assemblées, tandis que l'une au moins des deux parties d'assemblage continue à subir des forces de déformation élastiques.The invention involves the concept of driving for the assembly of one or more protruding parts, or "males", which are housed by pressure in one or more recesses, that is to say, housing "females". The assembly of these male / female elements is ensured by the elastic deformation of at least one of the parts involved in the driving operation, which allows the penetration of the "male" element into the "female" element. Hunting is also often referred to as crimping, especially when stones, which may be valuable, must be forced into an orifice. The holding in assembled position of the parts is then guaranteed by the friction forces exerted between the contact surfaces of the assembled parts, while at least one of the two assembly parts continues to undergo elastic deformation forces.
La
Sur la
La direction pour le chassage lors de l'assemblage de la lunette sur la glace, ou réciproquement, est indiquée par la flèche 14, qui indique également le sens du chassage. La direction de la flèche 14 est ici sensiblement perpendiculaire au plan formé par la face externe supérieure de la glace 9; elle permet par ailleurs, avec les formes géométriques utilisées pour la lunette, de fixer la lunette sur la glace 2 en maintenant la glace immobile durant l'étape de chassage. Cette caractéristique peut être intéressante pour simplifier l'outillage nécessaire au montage, en évitant un outillage complexe et coûteux comme des presses hydrauliques ou pneumatiques, car une simple potence peut suffire pour fixer la lunette sur la glace. La préhension de la lunette 1 étant a priori plus facile que celle de la glace 2, on pourra privilégier ce mode de fixation de la lunette sur la glace, selon lequel le sens de chassage 14 est dirigé de la lunette vers la glace (vers le bas sur la figure); toutefois, il est aussi envisageable, dans le cadre de l'invention, de fixer la glace 2 sur la lunette 1, avec un sens de chassage 14 qui serait alors inversé.The direction for hunting when assembling the telescope on the ice, or conversely, is indicated by the
La
Selon la variante préférentielle illustrée, les parties protubérantes que forment les tenons 3 sont situées sur cette face interne 8 de la lunette 2. Le sens de chassage 14 selon cette figure indique que la glace 2 semble devoir être apposée sur la lunette 1, ce qui constitue donc bien le montage inverse de celui évoqué lors de la figure précédente 1A. Selon la
La
On peut également voir sur la
Selon la variante préférentielle illustrée sur la
La
La
Un avantage de la variante illustrée par la
Selon une variante préférentielle de l'invention, au moins la glace 2 ou la lunette 1 sont constituées de matière plastique, qui a des propriétés élastiques adaptées au chassage. L'invention est particulièrement adaptée à un mode de réalisation selon lequel à la fois la lunette 1 et la glace 2 sont en plastique, par exemple la lunette en PA d'un module d'élasticité d'environ 2000 MPa et la glace en PMMA d'un module d'élasticité légèrement supérieur, de l'ordre de 3000 MPa. Ainsi selon la variante représentée sur la
Selon le mode de réalisation de la
L'avantage du mode de réalisation impliquant une pluralité de tenons 3 et de trous 4 et d'augmenter les surfaces de contact entre la partie protubérante 3 utilisée pour le chassage. Ainsi l'opération de chassage sera plus difficile à réaliser, mais parallèlement la force de tenue sera augmentée d'autant. Selon le mode de réalisation préférentiel illustré par les figures précédentes et réalisé avec les matériaux suscités pour la glace (PMMA, de module d'élasticité d'environ 3000 MPa) et la lunette (PA, de dureté 2000 MPa), un trou d'environ 0.5mm de diamètre et des parois d'une conicité d'environ 10 degrés, coopérant avec un tenon d'une diamètre d'environ 10% supérieur et dont l'inclinaison de la conicité et de l'ordre de la moitié, soit environ 5 degrés, demandent une force de chassage d'environ 4 à 5 Newtons, c'est-à-dire une force de pression cette intensité pour permettre un assemblage et une fixation corrects du tenon 3 dans le trou 4. On peut dès lors en déduire que le nombre de trous et de tenons nécessaires à la bonne tenue de la lunette, qui selon des normes de production habituelles dans le domaine de l'horlogerie peut être évaluée à environ 40 Newtons pour le plastique, est relativement peu élevé, soit de l'ordre de 10 (40, la force de tenue, divisée par environ 4, la force de tenue de chaque tenon dans son trou respectif, égale en norme à la force de chassage) sur l'ensemble du rebord périphérique 11 de la glace 2 et de la face interne 8 de la lunette.The advantage of the embodiment involving a plurality of
Ainsi, selon le mode de réalisation préférentiel décrit plus haut, l'usinage de plusieurs trous 4 sur chacune des quatre parties formant le rebord périphérique 11 de la glace 2, permet d'obtenir facilement une force de chassage totale supérieure à 100 Newtons. Des modes de réalisation préférentiels de l'invention utiliseront ainsi, pour des lunette 1 et glace 2 en plastique, des forces de chassage comprises entre 50 et 200 Newtons, pour lesquelles de nombreuses possibilités sont offertes pour l'ajustement des paramètres tels que les diamètres des trous et des tenons, ainsi que le nombre de paires trous/tenons par paroi. On notera que, dans le cadre de l'invention, si le diamètre du tenon 3 doit être supérieur au diamètre du trou 4 pour permettre l'opération de chassage, la conicité du trou 4 par rapport à celle du tenon 3 pourra aussi être ajustée pour améliorer l'épousement mutuel des surfaces impliquées lors du chassage. Pour ce faire, l'angle de la conicité du tenon sera ainsi choisi de préférence légèrement inférieur à celui de la conicité de la conicité du trou. Des modes de réalisation selon lesquels la conicité du tenon est supérieure à celle du trou sont toutefois également envisageables.Thus, according to the preferred embodiment described above, the machining of
Les
Les
Les autres références utilisées sur les
L'homme du métier comprendra que d'autres variantes peuvent être envisagées en combinant les formes géométriques des variantes illustrées, par exemple en usinant des gorges et bourrelets hémi-circulaires, ou des gorges et des bourrelets ne s'étendant simplement pas sur toute la périphérie du bord périphérique 11 de la glace 2, et des trous et tenons de forme correspondante sur la partie restante du bord périphérique 11 et de la face interne 8 de la lunette 1.
Claims (15)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09162411A EP2261757A1 (en) | 2009-06-10 | 2009-06-10 | Method and device for attaching a glass to a bezel |
CN2010102055072A CN101957589A (en) | 2009-06-10 | 2010-06-10 | The table mirror is fixed to the method and apparatus of table circle |
US12/813,213 US8764283B2 (en) | 2009-06-10 | 2010-06-10 | Process and device for fastening a glass to a bezel |
JP2010132745A JP2010286489A (en) | 2009-06-10 | 2010-06-10 | Method and device for attaching glass to bezel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09162411A EP2261757A1 (en) | 2009-06-10 | 2009-06-10 | Method and device for attaching a glass to a bezel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2261757A1 true EP2261757A1 (en) | 2010-12-15 |
Family
ID=41127397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09162411A Ceased EP2261757A1 (en) | 2009-06-10 | 2009-06-10 | Method and device for attaching a glass to a bezel |
Country Status (4)
Country | Link |
---|---|
US (1) | US8764283B2 (en) |
EP (1) | EP2261757A1 (en) |
JP (1) | JP2010286489A (en) |
CN (1) | CN101957589A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US10781135B2 (en) * | 2011-03-16 | 2020-09-22 | Apple Inc. | Strengthening variable thickness glass |
EP2672331B1 (en) * | 2012-06-06 | 2017-11-15 | Omega SA | Timepiece case with exterior element with improved attachment |
USD729650S1 (en) | 2014-05-22 | 2015-05-19 | Samsung Electronics Co., Ltd. | Electronic device |
USD729651S1 (en) | 2014-05-22 | 2015-05-19 | Samsung Electronics Co., Ltd. | Electronic device |
USD729652S1 (en) | 2014-05-22 | 2015-05-19 | Samsung Electronics Co., Ltd. | Electronic device |
USD755786S1 (en) * | 2014-08-13 | 2016-05-10 | Verily Life Sciences Llc | Wearable device |
TWD170177S (en) * | 2015-02-11 | 2015-09-01 | 廣達電腦股份有限公司 | smart watch |
TWD170176S (en) * | 2015-02-11 | 2015-09-01 | 廣達電腦股份有限公司 | smart watch |
USD778770S1 (en) * | 2015-06-24 | 2017-02-14 | Flexterra, Inc. | Segment of wearable device having flexible display panel |
USD778769S1 (en) * | 2015-06-24 | 2017-02-14 | Flexterra, Inc. | Segment of wearable device having flexible display panel |
USD778768S1 (en) * | 2015-06-24 | 2017-02-14 | Flexterra, Inc. | Segment of wearable device having flexible display panel |
USD770931S1 (en) * | 2015-10-12 | 2016-11-08 | Vgeo, Llc | Watch bezel |
JP6355282B1 (en) * | 2017-03-13 | 2018-07-11 | セイコーインスツル株式会社 | Fixed structure for mobile device parts |
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Also Published As
Publication number | Publication date |
---|---|
US20100315909A1 (en) | 2010-12-16 |
US8764283B2 (en) | 2014-07-01 |
CN101957589A (en) | 2011-01-26 |
JP2010286489A (en) | 2010-12-24 |
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