EP1094372B1 - Control knob - Google Patents
Control knob Download PDFInfo
- Publication number
- EP1094372B1 EP1094372B1 EP99120679A EP99120679A EP1094372B1 EP 1094372 B1 EP1094372 B1 EP 1094372B1 EP 99120679 A EP99120679 A EP 99120679A EP 99120679 A EP99120679 A EP 99120679A EP 1094372 B1 EP1094372 B1 EP 1094372B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- blind hole
- button
- ring
- channels
- 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.)
- Expired - Lifetime
Links
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 2
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 244000000626 Daucus carota Species 0.000 description 2
- 235000002767 Daucus carota Nutrition 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers
- G05G1/06—Details of their grip parts
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
- G04B3/04—Rigidly-mounted keys, knobs or crowns
Definitions
- the present invention relates to rotary control knobs, of the type used for example in watches and commonly called setting crown. It relates more particularly to a button having a metal body, of generally cylindrical shape, and provided with a blind hole for receiving a control rod.
- buttons are well known to those skilled in the art. They equip most watches with needles. They allow the setting time or even winding for mechanical watches. The user must therefore can pull the button to select a function and turn it to change the value.
- the button has the more often grooves on the cylindrical portion of its outer surface.
- flutes are abrasive, tend to wear out the clothes, and do not always allow a good grip especially at the level of traction.
- the main object of the present invention is a bi-material button metal / synthetic material made in such a way that it does not have the disadvantages of the aforementioned prior art.
- the invention relates to a control button having a metal body 10, 52 provided along its axis A-A of a blind hole 16, 58 closed by a cap 18 extended by a wall 14 of revolution, said button comprising on the outside on all or part of its wall 14 a zone for gripping a synthetic material, characterized in that the body 10, 52 of the button comprises an annular groove 20, 62 formed in the surface external wall 14, 56 near the opening of the blind hole 16, 58 and channels 26 connecting said outer surface of the wall 14 and the bottom of the blind hole 16, 58, and in that a lining 12 of synthetic material 12 is carried out in situ to form a ring 22, 64 housed in the groove 20, 62 and whose bosses 34 extend along the axis A-A on the outer surface of the wall 14, 56 at least until the openings of the channels 26, a structure multi-branch radial 30 closing said channels 26 and a core 32 connecting said branches 30 to join together the different parts of the filling 12.
- the trim forms on the outside of the body reliefs facilitating the grip, and inside the loops, each one of them enclosing the metal body, which ensures the best possible possible conditions of attachment.
- the reliefs of the synthetic material trim define bosses connecting the ring to the branches, or an annular band provided with grooves.
- the button according to the invention when used as a time-setting ring of a watch, it is subjected to tensile forces. If this effort is exercised frequently on the synthetic material, this may result in premature wear, which may cause it to tear. That is why it is advantageous that the effort necessary is applied to the metal body.
- the latter has a ring defining the side of the groove in the vicinity of the opening of the blind hole.
- the crown helps to seal the watch.
- the interior of the cylindrical wall is provided with an O-ring cooperating with a part of the housing for sealing the opening through which means of control of the watch. This seal is slipped into a housing of the crowned.
- Another object of the present invention is to provide a button of control, the gripping lining of synthetic material besides a seal.
- the button according to the invention is characterized in that its lining extending through additional channels inside the blind hole in a toric structure contiguous to the inner wall of the blind hole for form a seal.
- the button shown in FIGS. 1 to 5 is a crown of time for watch, essentially comprising a body 10, of metal, and a lining 12 made of synthetic material.
- the body 10 is made of stainless steel or brass coated with a protective metal layer. It comprises a wall 14, of general shape cylindrical, the inner surface of which defines a blind hole 16 and a cap 18 closing the hole 16 at one of its ends.
- the hole 16 is arranged to receive a control rod not shown in the drawings.
- the wall 14 is externally provided with an annular groove 20, of which one of the sides, disposed in the vicinity of the end comprising the opening of the hole 16, is formed of a ring 22 having two clearances 24 diametrically opposite, in a semi-circle and practiced over the entire thickness of the ring 22.
- the wall 14 is, in addition, pierced with six radial channels 26 distributed regularly, opening into the hole 16, inclined by approximately 60 ° by relative to the axis A-A and defining a junction core 32 whose vertex is found in the hood 18.
- the lining 12 is made of a flexible synthetic material having a high coefficient of friction when in contact with the skin of the user.
- This synthetic material is, for example, polyurethane.
- the lining is formed of a ring 28 housed in the throat 20, a radial structure with six branches 30, closing the channels 26 and the inner ends are connected by the connecting core 32, and six bosses 34 each connecting one of the branches 30 to the ring 28. It is well obvious that, if we wish more or less than six bosses 34, we will realize a equal number of radial channels 26.
- a button as described is by overmoulding, at medium of a mold formed of two removable shells with several identical imprints, imprints intended to receive the bodies 10 and shaped hollow to the outer surface of the final bi-material button. Each of them is connected on the one hand to an injection channel, on the other hand to a flow channel, the bodies 10 being arranged in such a way that channels, substantially oriented parallel to the axis A-A, open into the 24.
- each impression defines a volume that exactly matches the final volume of the button.
- the synthetic material is injected, it enters the groove 20, for forming the ring 28, on sectors of the wall 14 to form the bosses 34, and inside the channels 26 to define the branches 30 and the core 32, the surplus flowing in the flow channel.
- buttons are removed from the mold, being interconnected by a carrot formed of the material contained in the injection and flow channels and then separated from each other in cutting the superfluous matter.
- the carrots are connected to the fillings of each button in the zones containing the clearances 24, it result that the cut is made in a masked point after its introduction at level of the middle part of the watch.
- the button that has just been described with reference to FIGS. 1 to 5 has bosses 34 facilitating its rotational drive and him conferring a certain aesthetic appearance besides its functional character.
- the groove 20 can be widened up to integrate the outer openings of the channels 26. In this way, practically the entire outer part of the wall 14 would be covered with the material synthetic material, except for the ring 22, which gives the watch a original appearance.
- FIG. sectional view a watch case 40 equipped with control means 42 to set the display time.
- the box 40 comprises a middle part 44 carrying a cylindrical tube 46, of axis B-B, inside which are housed the control means 42. These are formed of a ring 48 and a time-setting rod 50, fixed in the crown by known means, for example by gluing or by chassage.
- the ring 48 comprises a body 52, made of metal, and a filling of gripping 54, synthetic material.
- the body 52 is formed, so identical to the body 10, of a cylindrical wall 56 defining a blind hole 58, the latter being closed, at one of its ends, by a cap 60.
- the wall 56 is provided on its external face with an annular groove 62, one of which adjacent to the opening of the hole 58, is defined by a ring 64 provided with two clearances 66 diametrically opposed, in a semi-circle and practiced throughout the thickness of the ring 64.
- the wall 56 is pierced with channels 68 extending radially in its entire thickness and opening accordingly into the blind hole 58. It further comprises a flange 70 disposed at the inlet of the hole 58 and extending radially towards the axis B-B.
- the lining 54 comprises an annular band 72 housed in the throat 62 which then extends radially towards the cap 18, elements junction 74 closing the channels 68 and an adjacent toric structure 76 flange 70.
- This toric structure 76 extends inside the wall 56, beyond the channels 68 towards the cap 60. In this portion, its inner diameter is slightly less than the outside diameter of the tube 46, so that the toric structure 76 is compressed, bearing against the tube 46 and the wall 56, thus ensuring the function of seal. He is, from so, possible to have in a single operation a crown of time setting waterproof and whose drive in rotation is facilitated by the outer part of the synthetic material lining.
- the cohesion of the filling can still be to be increased by providing, as in the first embodiment of the radial channels 26 in which the lining forms branches 30 joining the annular band 72 and the core 32.
- the need to form branches 30 and the core 32 depends essentially the greater or less elasticity of the synthetic material used and the thickness imparted to the annular band 72.
- control button relate to a watch crown. It is obvious that this kind of button can be used in other applications requiring control means of small dimensions, robust and handling such as, for example, portable measuring devices, communication, etc.
- the lining can, of course, be made of a material other than polyurethane. The choice will be on a material pleasant to the touch, stable and resistant to wear.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Description
La présente invention se rapporte aux boutons de commande rotatifs, du type utilisé par exemple dans les montres et appelés communément couronne de mise à l'heure. Elle concerne plus particulièrement un bouton comportant un corps métallique, de forme générale cylindrique, et muni d'un trou borgne destiné à recevoir une tige de commande.The present invention relates to rotary control knobs, of the type used for example in watches and commonly called setting crown. It relates more particularly to a button having a metal body, of generally cylindrical shape, and provided with a blind hole for receiving a control rod.
De tels boutons, en métal, sont biens connus de l'homme du métier. Ils équipent la plupart des montres munies d'aiguilles. Ils permettent la mise à l'heure, voire le remontage pour les montres mécaniques. L'usager doit donc pouvoir tirer le bouton pour sélectionner une fonction et le tourner afin d'en modifier la valeur.Such buttons, metal, are well known to those skilled in the art. They equip most watches with needles. They allow the setting time or even winding for mechanical watches. The user must therefore can pull the button to select a function and turn it to change the value.
Pour faciliter la rotation du bouton, il arrive que ce dernier comporte le plus souvent des cannelures sur la portion cylindrique de sa surface externe. Malheureusement de telles cannelures sont abrasives, tendent à user les vêtements, et ne permettent pas toujours une bonne préhension en particulier au niveau de la traction.To facilitate the rotation of the button, it can happen that the button has the more often grooves on the cylindrical portion of its outer surface. Unfortunately such flutes are abrasive, tend to wear out the clothes, and do not always allow a good grip especially at the level of traction.
Il est bien connu que des matériaux organiques, tels que le caoutchouc, permettent une adhérence plus grande que le métal, sans pour autant provoquer d'usure. Ces matériaux sont, toutefois, trop peu rigides pour pouvoir être l'unique matériau constitutif d'un bouton de commande.It is well known that organic materials, such as rubber, allow greater adhesion than metal without cause wear. These materials are, however, too inflexible for to be the only constituent material of a control button.
Pour avoir un bouton de commande ayant à l'usage les avantages du métal et du caoutchouc, il semble naturel de revêtir les cannelures d'un matériau synthétique. Cette solution a de nombreux inconvénients. Un traitement préalable de la surface en métal est nécessaire pour permettre l'accrochage d'un matériau synthétique, ledit traitement devant être adapté à chaque type de matériau; une délimitation très précise des zones recouvertes est très difficile de sorte qu'il est très souvent nécessaire de faire une reprise d'usinage telle qu'un polissage; l'épaisseur de matériau synthétique déposé étant très faible le revêtement est sensible à l'usure et à un arrachage accidentel.To have a command button having in use the advantages of metal and rubber, it seems natural to coat the grooves of a synthetic material. This solution has many disadvantages. A prior treatment of the metal surface is necessary to allow the attachment of a synthetic material, said treatment to be adapted to each type of material; a very precise delimitation of the covered areas is very difficult so it is very often necessary to make a recovery machining such as polishing; the thickness of deposited synthetic material being very weak the coating is sensitive to wear and tearing accidental.
La présente invention a pour but principal un bouton bi-matière métal/matériau synthétique réalisé de telle sorte qu'il ne présente pas les inconvénients de l'art antérieur précité.The main object of the present invention is a bi-material button metal / synthetic material made in such a way that it does not have the disadvantages of the aforementioned prior art.
A cet effet l'invention a pour objet un bouton de commande ayant un
corps 10, 52 métallique pourvu selon son axe A-A d'un trou borgne 16, 58
fermé par un capuchon 18 prolongé par une paroi 14 de révolution, ledit
bouton comportant à l'extérieur sur tout ou partie de sa paroi 14 une zone
de préhension en un matériau synthétique, caractérisé en ce que le corps 10,
52 du bouton comprend une gorge annulaire 20, 62 pratiquée dans la surface
externe de sa paroi 14, 56 à proximité de l'ouverture du trou borgne 16, 58
et des canaux 26 reliant ladite surface externe de la paroi 14 et le fond du
trou borgne 16, 58, et en ce qu'une garniture 12 en matériau 12 synthétique
est réalisée in situ pour former une bague 22, 64 logée dans la gorge 20, 62
et dont des bossages 34 s'étendent selon l'axe A-A sur la surface externe de
la paroi 14, 56 au moins jusqu'aux ouvertures des canaux 26, une structure
radiale à plusieurs branches 30 obturant lesdits canaux 26 et un noyau 32
reliant lesdites branches 30 pour solidariser entre elles les différentes parties
de la garniture 12.For this purpose the invention relates to a control button having a
De la sorte, la garniture forme à l'extérieur du corps des reliefs facilitant la préhension, et à l'intérieur des boucles, chacune d'entre elles enserrant le corps métallique, ce qui permet d'assurer les meilleures conditions possibles d'accrochage.In this way, the trim forms on the outside of the body reliefs facilitating the grip, and inside the loops, each one of them enclosing the metal body, which ensures the best possible possible conditions of attachment.
Afin de faciliter l'entraínement en rotation du bouton de commande, les reliefs de la garniture en matériau synthétique définissent des bossages reliant la bague aux branches, ou une bande annulaire pourvue de cannelures.In order to facilitate the rotational drive of the control button, the reliefs of the synthetic material trim define bosses connecting the ring to the branches, or an annular band provided with grooves.
Dans certaines applications, par exemple lorsque le bouton selon l'invention est utilisé comme couronne de mise à l'heure d'une montre, il est soumis à des efforts de traction. Si cet effort est exercé fréquemment sur le matériau synthétique, il peut en résulter une usure prématurée, pouvant provoquer son arrachement. C'est pourquoi il est avantageux que l'effort nécessaire soit appliqué sur le corps métallique. A cet effet, ce dernier présente un anneau définissant le côté de la gorge au voisinage de l'ouverture du trou borgne.In some applications, for example when the button according to the invention is used as a time-setting ring of a watch, it is subjected to tensile forces. If this effort is exercised frequently on the synthetic material, this may result in premature wear, which may cause it to tear. That is why it is advantageous that the effort necessary is applied to the metal body. For this purpose, the latter has a ring defining the side of the groove in the vicinity of the opening of the blind hole.
Pour l'application évoquée ci-dessus, il est souvent demandé que la couronne participe à l'étanchéité de la montre. Généralement, l'intérieur de la paroi cylindrique est doté d'un joint torique coopérant avec une partie du boítier pour fermer de manière étanche l'ouverture que traverse les moyens de commande de la montre. Ce joint est glissé dans un logement de la couronne.For the application mentioned above, it is often requested that the crown helps to seal the watch. Generally, the interior of the cylindrical wall is provided with an O-ring cooperating with a part of the housing for sealing the opening through which means of control of the watch. This seal is slipped into a housing of the crowned.
Un autre but de la présente invention est de réaliser un bouton de commande dont la garniture de préhension en matériau synthétique forme en outre un joint d'étanchéité. A cet effet, et dans un mode de réalisation particulier, le bouton selon l'invention est caractérisé en ce que sa garniture s'étendant à travers des canaux supplémentaires à l'intérieur du trou borgne en une structure torique accolée à la paroi interne du trou borgne pour former un joint d'étanchéité.Another object of the present invention is to provide a button of control, the gripping lining of synthetic material besides a seal. For this purpose, and in one embodiment particular, the button according to the invention is characterized in that its lining extending through additional channels inside the blind hole in a toric structure contiguous to the inner wall of the blind hole for form a seal.
D'autres avantages et caractéristiques de l'invention ressortiront de la description qui va suivre, faite en regard des dessins annexés, dans lesquels :
- la figure 1 est une vue de côté d'un bouton selon un premier mode de réalisation,
- la figure 2 est une vue de dessous du bouton de la figure 1,
- la figure 3 est une vue de dessus du bouton de la figure 1,
- la figure 4 est une vue en perspective du bouton de la figure 1,
- la figure 5 est une représentation en coupe selon la ligne V-V de la figure 3, et
- la figure 6 est une vue en coupe d'une partie de boíte de montre munie d'une couronne de mise à l'heure correspondant à un second mode de réalisation d'un bouton selon l'invention.
- FIG. 1 is a side view of a button according to a first embodiment,
- FIG. 2 is a bottom view of the button of FIG. 1,
- FIG. 3 is a top view of the button of FIG. 1,
- FIG. 4 is a perspective view of the button of FIG. 1,
- FIG. 5 is a sectional representation along the line VV of FIG. 3, and
- Figure 6 is a sectional view of a watch case portion provided with a setting ring corresponding to a second embodiment of a button according to the invention.
Le bouton représenté aux figures 1 à 5 est une couronne de mise à
l'heure pour montre, comportant essentiellement un corps 10, en métal, et
une garniture 12 en matériau synthétique.The button shown in FIGS. 1 to 5 is a crown of
time for watch, essentially comprising a
Le corps 10 est réalisé en acier inoxydable ou en laiton revêtu d'une
couche métallique de protection. Il comporte une paroi 14, de forme générale
cylindrique, dont la surface intérieure définit un trou borgne 16 et un capuchon
18 obturant le trou 16 à l'une de ses extrémités. Le trou 16 est agencé pour
recevoir une tige de commande non représentée sur les dessins.The
La paroi 14 est extérieurement munie d'une gorge annulaire 20, dont
l'un des côtés, disposé au voisinage de l'extrémité comportant l'ouverture du
trou 16, est formé d'une bague 22 présentant deux dégagements 24
diamétralement opposés, en demi-cercle et pratiqués sur toute l'épaisseur de
la bague 22. La paroi 14 est, en outre, percée de six canaux radiaux 26
répartis régulièrement, débouchant dans le trou 16, inclinés d'environ 60° par
rapport à l'axe A-A et définissant un noyau de jonction 32 dont le sommet se
trouve dans le capuchon 18.The
La garniture 12 est réalisée en un matériau synthétique souple
présentant un coefficient de frottement élevé lorsqu'il est en contact avec la
peau de l'utilisateur. Ce matériau synthétique est par exemple du
polyuréthanne. La garniture est formée d'un anneau 28 logé dans la gorge
20, d'une structure radiale à six branches 30, obturant les canaux 26 et dont
les extrémités intérieures sont reliées par le noyau de jonction 32, et de six
bossages 34 reliant chacune l'une des branches 30 à l'anneau 28. Il est bien
évident que, si on souhaite plus ou moins de six bossages 34, on réalisera un
nombre égal de canaux radiaux 26.The
La fabrication d'un bouton tel que décrit se fait par surmoulage, au
moyen d'un moule formé de deux coquilles amovibles comportant plusieurs
empreintes identiques, empreintes destinées à recevoir les corps 10 et
conformées en creux à la surface extérieure définitive du bouton bi-matière.
Chacune d'entre elles est reliée d'une part à un canal d'injection, d'autre part
à un canal d'écoulement, les corps 10 étant disposés de manière à ce que ces
canaux, sensiblement orientés parallèlement à l'axe A-A, débouchent dans les
dégagements 24. Lorsque les coquilles sont assemblées, chaque empreinte
définit un volume correspondant exactement au volume final du bouton. Aussi,
lorsque le matériau synthétique est injecté, il pénètre dans la gorge 20, pour
former l'anneau 28, sur des secteurs de la paroi 14 pour former les
bossages 34, et à l'intérieur des canaux 26 pour définir les branches 30 et le
noyau 32, le surplus s'écoulant dans le canal d'écoulement.The manufacture of a button as described is by overmoulding, at
medium of a mold formed of two removable shells with several
identical imprints, imprints intended to receive the
Il est bien évident que, lors de cette opération, une portion terminale du
trou borgne est obturée par un bouchon, venant de matière avec l'une des
coquilles, de manière à empêcher toute pénétration du matériau synthétique
dans cet espace, exception faite du noyau 32. Ce dernier permet d'assurer un
lien étroit entre les branches 30, de manière à ce que la garniture synthétique
12 forme un tout, comportant un ensemble de boucles fermées, chacune
enserrant une partie du corps 10. De la sorte et bien que le polyuréthanne
n'adhère pas au métal, le bouton ainsi réalisé forme un tout solide.It is obvious that during this operation, a terminal portion of the
blind hole is closed by a plug, coming from material with one of the
shells so as to prevent any penetration of the synthetic material
in this space, with the exception of
Après l'opération d'injection, les boutons sont retirés du moule, étant
reliés entre eux par une carotte formée de la matière contenue dans les
canaux d'injection et d'écoulement, puis séparés les uns des autres en
coupant la matière superflue. Comme les carottes sont reliées aux garnitures
de chaque bouton dans les zones comportant les dégagements 24, il en
résulte que la coupure se fait en un point masqué après sa mise en place au
niveau de la carrure de la montre.After the injection operation, the buttons are removed from the mold, being
interconnected by a carrot formed of the material contained in the
injection and flow channels and then separated from each other in
cutting the superfluous matter. As the carrots are connected to the fillings
of each button in the zones containing the
Pour corriger les informations de la montre équipée d'un bouton tel que
décrit, il est généralement nécessaire de tirer ce dernier avant de le tourner.
Pour effectuer la traction, l'utilisateur saisit le bouton dans sa partie opposée
au capuchon 18, soit au niveau de la bague 22. Comme celle-ci est en métal, il
n'y a aucun risque d'arracher ou de détériorer les parties apparentes de la
garniture 12. To correct the information of the watch equipped with a button such as
described, it is usually necessary to pull the latter before turning it.
To perform the pull, the user enters the button in its opposite part
at the
Le bouton qui vient d'être décrit en référence aux figures 1 à 5
présente des bossages 34 facilitant son entraínement en rotation et lui
conférant un certain aspect esthétique outre son caractère fonctionnel. Dans
une variante, non représentée au dessin, la gorge 20 peut être élargie jusqu'à
intégrer les ouvertures extérieures des canaux 26. De la sorte, pratiquement
toute la partie extérieure de la paroi 14 serait recouverte du matériau
synthétique, à l'exception de la bague 22, ce qui confère à la montre un
aspect original.The button that has just been described with reference to FIGS. 1 to 5
has
Selon un autre mode de réalisation de l'invention, la figure 6 représente,
vue en coupe, une boíte de montre 40 munie de moyens de commande 42
pour assurer la mise à l'heure de l'affichage.According to another embodiment of the invention, FIG.
sectional view, a
La boíte 40 comprend une carrure 44 portant un tube cylindrique 46,
d'axe B-B, à l'intérieur duquel sont logés les moyens de commande 42. Ceux-ci
sont formés d'une couronne 48 et d'une tige de mise à l'heure 50, fixée dans
la couronne par des moyens connus, par exemple par collage ou par
chassage.The
La couronne 48 comporte un corps 52, en métal, et une garniture de
préhension 54, en matériau synthétique. Le corps 52 est formé, de manière
identique au corps 10, d'une paroi cylindrique 56 définissant un trou borgne
58, ce dernier étant obturé, à l'une de ses extrémités, par un capuchon 60.
La paroi 56 est munie, sur sa face externe, d'une gorge annulaire 62 dont un
côté, adjacent à l'ouverture du trou 58, est défini par une bague 64 munie de
deux dégagements 66 diamétralement opposés, en demi-cercle et pratiqués
dans toute l'épaisseur de la bague 64.The
La paroi 56 est percée de canaux 68 s'étendant radialement dans
toute son épaisseur et débouchant en conséquence dans le trou borgne 58.
Elle comporte, en outre, un rebord 70 disposé à l'entrée du trou 58 et
s'étendant radialement vers l'axe B-B.The
La garniture 54 comprend une bande annulaire 72 logée dans la gorge
62 qui s'étend alors radialement en direction du capuchon 18, des éléments
de jonction 74 obturant les canaux 68 et une structure torique 76 adjacente
au rebord 70. Cette structure torique 76 s'étend à l'intérieur de la paroi 56,
au-delà des canaux 68 en direction du capuchon 60. Dans cette portion, son
diamètre intérieur est légèrement inférieur au diamètre extérieur du tube 46,
de sorte que la structure torique 76 est comprimée, en appui contre le tube
46 et la paroi 56, assurant ainsi la fonction de joint d'étanchéité. Il est, de la
sorte, possible d'avoir en une seule opération une couronne de mise à l'heure
étanche et dont l'entraínement en rotation est facilité par la partie extérieure
de la garniture en matériau synthétique.The lining 54 comprises an
Comme représenté à la figure 6 la cohésion de la garniture peut encore
être accrue en prévoyant, comme dans le premier mode de réalisation des
canaux radiaux 26 dans lesquels la garniture forme des branches 30
rejoignant la bande annulaire 72 et le noyau 32. Comme on peut le
comprendre, la nécessité de former des branches 30 et le noyau 32 dépend
essentiellement de la plus ou moins grande élasticité du matériau synthétique
utilisé et de l'épaisseur conférée à la bande annulaire 72.As shown in FIG. 6, the cohesion of the filling can still be
to be increased by providing, as in the first embodiment of the
Les deux exemples de réalisation d'un bouton de commande selon l'invention se rapportent à une couronne de montre. Il est évident que ce genre de bouton peut être utilisé dans d'autres applications nécessitant des moyens de commande de petites dimensions, robustes et de manipulation facile, comme, par exemple, des appareils de mesure portatifs, des appareils de communication, etc.The two embodiments of a control button according to the invention relate to a watch crown. It is obvious that this kind of button can be used in other applications requiring control means of small dimensions, robust and handling such as, for example, portable measuring devices, communication, etc.
La garniture peut, bien entendu, être réalisée en un autre matériau que le polyuréthanne. Le choix se portera sur une matière agréable au toucher, stable et résistante à l'usure.The lining can, of course, be made of a material other than polyurethane. The choice will be on a material pleasant to the touch, stable and resistant to wear.
Claims (5)
- Control button having a metal body (10, 52) provided along its axis A-A with a blind hole (16, 58) closed by a cap (18, 60) extended by a wall (14, 56) of revolution, said button including on all or part of the exterior of its wall (14, 56) a gripping zone made of synthetic material, characterised in that body (10, 52) of the button includes an annular groove (20, 62) made in the outer surface of its wall (14, 56) in proximity to the opening of the blind hole (16, 58) and channels (26, 68) connecting said outer surface of the wall (14, 56) and the bottom of the blind hole (16, 58), and in that a fitting (12, 54) made of synthetic materials made in situ to form a ring (22, 64) housed in the groove (20, 62) and whose raised portions (34) extend along axis A-A over the outer surface of the wall (14, 56) at least as far as the openings of the channels (26, 68), a radial structure with several branches (30) closing said channels (26, 68) and a core (32) connecting said branches (30) to secure between them the different parts of the fitting (12).
- Control button according to claim 1, characterised in that said body (10, 52) has on the side of the groove (20, 62) in proximity to the opening of the blind hole (16, 58) a ring (22, 64) facilitating the traction of said button.
- Control button according to claim 1, characterised in that said body (10, 52) includes through the wall (14, 56) and in proximity to the groove (20, 62) passages (68) through which the fitting (12) passes to form inside the blind hole (16, 58) an O-ring structure (76) defining a sealing gasket.
- Control button according to claim 1, characterised in that the raised portions (34) of the fitting (12) are jointed to form an annular strip (72) around the wall (14).
- Method for manufacturing a control button made of two materials from a metal body (10) whose wall (14) of revolution defines a blind hole (16) closed by a cap (18), characterised in that one performs the steps of :forming in the outer surface of the wall (14) of the body (10) an annular groove (20) also delimiting a ring (22) at the bottom of the blind hole (16);forming through the wall (14) channels (26) joining the annular groove (20) and the bottom of the blind hole (16);arranging in the ring (22) at least two recesses (24) joining the annular groove (20);placing a plurality of bodies (10) thereby formed in an injection mould having two removable shells including a plurality of identical moulds shaped in a hollow to correspond to the definitive outer surface of the button made of two materials, one of the moulds having a plug closing the blind hole on a part of its length;injecting a synthetic material through one of the recesses (24) to form a ring (28) opposite the annular groove (20) and raised portions (34) opposite the openings of the channels (26); andseparating each button made of two materials from the injection mould.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99120679A EP1094372B1 (en) | 1999-10-19 | 1999-10-19 | Control knob |
AT99120679T ATE273531T1 (en) | 1999-10-19 | 1999-10-19 | CONTROL BUTTON |
DE69919357T DE69919357T2 (en) | 1999-10-19 | 1999-10-19 | actuating button |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99120679A EP1094372B1 (en) | 1999-10-19 | 1999-10-19 | Control knob |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1094372A1 EP1094372A1 (en) | 2001-04-25 |
EP1094372B1 true EP1094372B1 (en) | 2004-08-11 |
Family
ID=8239226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99120679A Expired - Lifetime EP1094372B1 (en) | 1999-10-19 | 1999-10-19 | Control knob |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1094372B1 (en) |
AT (1) | ATE273531T1 (en) |
DE (1) | DE69919357T2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10153532B4 (en) * | 2001-10-23 | 2006-09-14 | "Durable" Hunke & Jochheim Gmbh & Co. Kg | Handwheel, in particular for initiating a rotary movement in the holder of a Rollkartei |
JP4652264B2 (en) * | 2006-04-04 | 2011-03-16 | アルプス電気株式会社 | Rotary operation device |
DE102007051380A1 (en) * | 2007-10-25 | 2009-05-14 | Continental Automotive Gmbh | operating element |
DE102007051399B4 (en) * | 2007-10-25 | 2010-09-09 | Continental Automotive Gmbh | operating element |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3887963A (en) * | 1974-06-19 | 1975-06-10 | Scm Corp | Control knob assembly |
CH660437GA3 (en) * | 1983-10-24 | 1987-04-30 | ||
US5469758A (en) * | 1993-11-03 | 1995-11-28 | The Grigoleit Company | Knob with soft plastic cover |
-
1999
- 1999-10-19 DE DE69919357T patent/DE69919357T2/en not_active Expired - Lifetime
- 1999-10-19 AT AT99120679T patent/ATE273531T1/en not_active IP Right Cessation
- 1999-10-19 EP EP99120679A patent/EP1094372B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1094372A1 (en) | 2001-04-25 |
ATE273531T1 (en) | 2004-08-15 |
DE69919357D1 (en) | 2004-09-16 |
DE69919357T2 (en) | 2005-08-04 |
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