EP3955066A1 - Watch comprising a control mechanism with setting stem and pull-out piece - Google Patents
Watch comprising a control mechanism with setting stem and pull-out piece Download PDFInfo
- Publication number
- EP3955066A1 EP3955066A1 EP20190985.0A EP20190985A EP3955066A1 EP 3955066 A1 EP3955066 A1 EP 3955066A1 EP 20190985 A EP20190985 A EP 20190985A EP 3955066 A1 EP3955066 A1 EP 3955066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- movement
- watch
- arm
- hub
- pull tab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims description 15
- 230000009471 action Effects 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 241001639412 Verres Species 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- G04B27/00—Mechanical devices for setting the time indicating means
- G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
-
- 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
- G04B33/00—Calibers
- G04B33/06—Calibers of extremely flat shape
-
- 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
- G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
- G04B37/062—Means for preventing the winding stem from being pulled out too far
- G04B37/064—Means for preventing the winding stem from being pulled out too far by a tirette
Definitions
- the pull tab is pivotally mounted on the plate of the movement and it is subjected to the action of return means provided to engage it in a groove of the stem.
- return means provided to engage it in a groove of the stem.
- the back of the watch case may be integral with the middle part. It will in fact be understood that this feature makes it possible to eliminate the means of coupling between the caseback and the caseband. It is thus possible to reduce the thickness of the box. This characteristic naturally also makes it possible to solve certain sealing problems.
- the price to pay for these advantages is that one obtains a watch case whose bottom cannot be removed. It is not therefore not possible to access the movement of the watch from the back side to release the pull tab from the stem.
- a tear-off rod In the case of a tear-off rod, the groove of the rod in which the end of the pull tab is engaged is inclined. This type of rod is unreliable due to a high risk of tearing by the user.
- a broken rod is a two-part rod. The first part is coupled to the movement, while the second part is designed to be introduced through an orifice in the caseband. The description of such a rod can be found in particular in the patent document CH 702 798 B1 . This type of rod is more expensive due to the large number of additional parts to be implemented.
- the patent document CH 558 039 offers an alternative solution to this same problem.
- the watch described in this document complies with the definition given in the preamble. Its stem and pull mechanism is intended for winding and setting the time.
- This watch also comprises an extractor lever designed to allow the pull tab to be uncoupled from the stem without having to act directly on the axis of the pull tab.
- the extractor lever is placed in a recess made in the plate, close to the back of the movement. It comprises a first arm which protrudes from the edge of the movement, and a second arm which is arranged to cooperate with the end of the pivot axis of the pull tab so that the axis can be pushed back longitudinally when exerted on the first arm a pressure in the direction of the bottom of the watch case. To do this, the tip of a tool is passed between the dial and the caseband after removing the watch glass. It is thus possible to exert pressure on the first arm using the point.
- the figures in the document CH 558 039 show that the extractor lever has the shape of a bar having a rectangular profile, and having a bend slightly accentuated at the junction between the two arms of the lever. Rather than being arranged to pivot around an axis, the extractor lever is simply placed on an inner surface of the plate so as to be able to tilt in support of the edge of its elbow. Such a construction involves considerable play. The reliability of the cooperation between the lever and the end of the axis of the pull tab risks being compromised.
- An object of the present invention is to remedy the drawbacks of the prior art which have just been explained.
- the present invention achieves this object as well as others by providing a watch which includes a pin and pull mechanism and which is in accordance with appended claim 1.
- the extractor lever is mounted so as to be able to pivot inside a space provided between the caseband and the edge of the movement.
- the puller lever includes a hub and at least one arm extending laterally from the hub. It is further able to be actuated by pivoting with the aid of a tool introduced from the dial side of the watch case.
- part of the pull tab is arranged in such a way as to protrude out of the movement in the path of the arm of the extractor lever, so that by pivoting, the latter can push back the protruding part of the pull tab, to lift this last against the recall means.
- the hub of the extractor lever is engaged in a hole drilled in the inner wall of the caseband, so as to be guided to pivot coaxially with the hole.
- a shaft or a tenon is still inserted in the hole so as to protrude from the middle in the direction of the edge of the movement.
- the hub of the extractor lever pivots around the shaft or the tenon.
- the above embodiment is particularly simple and does not require any expensive components. Indeed, most known watches already include at least one bore serving as a passage for a shaft which protrudes from the caseband in the direction of the edge of the movement.
- the figure 1 , 2 and 3 appended are various partial views of a watch which conforms to a first exemplary embodiment.
- the watch represented comprises a watch movement 2 which conventionally comprises a plate and bridges (not referenced). Movement 2 is surmounted by a dial 4 (shown in the figure 2 ) above which display means (not shown) move, and the movement is also housed in a watch case comprising a middle part 12 and a back (not shown).
- the caseband 12 and the back are made in one piece, that is to say that these two elements are joined together in a one-piece piece.
- the watch case is closed on the dial side by a glass (not shown) which is fixed to the caseband 12, preferably in a sealed manner, using a bezel (not shown).
- the illustrated watch also includes a control mechanism with stem and pull tab allowing it to be wound up and set manually.
- the rod of the control mechanism is referenced 26. It extends between the inside of the movement 2 and the outside of the watch case by crossing the middle part 12 ( picture 2 ).
- the caseband 12 may for example have a radial bore 28 inside which is driven a crown tube 24, the stem 26 passing inside the tube.
- the control mechanism also comprises a pull rod 30 which is coupled with the rod 26.
- the pull rod 30 is mounted on a shaft (not shown) pivoted in the plate and the axis of which extends substantially perpendicular to the plane of the movement.
- the shaft also has the possibility of sliding axially inside the movement so as to offset the pull-bar 30 in height.
- the part of the stem 26 which extends inside the movement 2 has an annular groove 34, and that an arm of the pull tab 30 is provided with a tenon 32 capable of being housed in the groove 34 so as to create a coupling between the rod 26 and the pull tab 30.
- the rod and pull rod control mechanism also comprises return means tending to maintain the tenon 32 in the groove of the rod.
- return means consist of a leaf spring referenced 36 ( figure 1 ).
- the principle of operation of rod and pull-cord control mechanisms is well known to those skilled in the art.
- the pull tab 30 and the shaft which carries it are pivotally mounted between at least two angular positions which are determined by cooperation of the pull tab 30 with a jumper spring 38.
- the wearer of the watch pulls on the stem 26 to to bring it into the time-setting position, or alternatively, when it pushes the stem back to bring it into the winding position, it causes the pull tab 30 to pivot via the stem 26 and the tenon 32, so to switch the pull tab from one to the other of two predetermined angular positions.
- the watch also includes an extractor lever 40 intended to lift the pull tab 30 so as to disengage the tenon 32 from the groove 34 to release the control rod 26.
- the extractor lever 40 is intended to be actuated by a watchmaker using a tool 50 introduced from the dial side of the watch case when the crystal and the bezel have been removed, but the movement 2 is still cased.
- the extractor lever 40 shown comprises a hub 42 which generally has the shape of a cylindrical tube, and a single arm 44 which extends transversely from the hub.
- the extractor lever 40 is housed in a space formed between the caseband 12 and the edge of the movement 2. It is also mounted to pivot around an axis oriented radially relative to the caseband 12 and to the movement 2.
- the hub 42 of the extractor lever extends from the inner end of the crown tube 24 substantially as far as the edge of the movement 2 and its pivot axis coincides with the axis of the stem 26.
- the end of the hub 42 which is turned in the direction of the caseband may include a recess 48, and the inner end of the crown tube 24 may be engaged in the recess 48, so that, in the present example, the hub 42 of the extractor lever 40 is centered on the caseband by the crown tube 24, while being free to pivot coaxially with respect to the latter.
- the end of the hub which faces the middle could not be in contact with the crown tube, but be engaged directly in the drilled hole of the crown tube. The hub would thus be guided by cooperation between its outer face and the wall of the drilled hole.
- the space between the caseband 12 and the edge of the movement 2 is partially constituted by a recess 60 arranged in the thickness of the caseband. It will however be understood that other embodiments are devoid of such clearance. Indeed, one can understand that in the case in particular where the preexisting interval between the edge of the movement and the wall interior of the caseband is greater than in the present example, it may be unnecessary to enlarge this interval by a recess dug into the thickness of the caseband.
- the hub 42 of the extractor lever is shaped so as to be able to cooperate with a tool of the key type or the like. Thanks to this feature, a watchmaker can use a key 50 to rotate the lever 40. To do this, he only needs to first introduce the key 50 into the watch case from the dial side, after having removed the bezel.
- the extractor lever 40 of this example comprises a section 52 whose cross section has the shape of a polygon. This polygonal section 52 is adapted to cooperate with the fork of the flat key 50 illustrated in the figure 1 and 2 .
- the picture 3 shows that the polygonal section 52 has four main faces which are arranged on a square and which are interconnected by rounded intermediate faces.
- a part 46 of the pull tab 30 is arranged so as to project out of the movement 2, and that it is on the path of the arm 44 of the extractor lever 40.
- the arm 44 can thus push back the part 46 of the zipper when pivoting the lever 40 in the appropriate direction.
- the presence of the protruding part 46 offers the possibility of disengaging the tenon 32 from the groove 34 by simply pivoting the extractor lever 40 using the key 50 to lift the pull tab 30 against the means of reminder 36.
- the dimensions of the projecting part 52 are preferably reduced. Indeed, the dimensions of the protruding part should preferably allow it to protrude outside the movement 2 without the geometric moment of the protruding part 52 relative to the shaft which carries the pull tab 30 being too great.
- the hub 42 of the extractor lever is shaped so that the polygonal section 52 is positioned precisely opposite a gap which separates the edge of the dial 4 of the inner wall of the middle part 12. Thanks to this characteristic, it is possible to bring the fork of the key 50 into engagement with the polygonal section 52 by passing the key 50 between the dial and the middle part, the key 50 being held vertically throughout the operation.
- the part 46 of the pull tab 30 generally does not extend far enough to be opposite the gap between the dial and the caseband. This is the reason why, in the present example, the end of the arm 44 of the extractor lever 40 is closer to the center of the movement 2 than is the polygonal section 52. This difference is the reason why, in the picture 3 , the arm 44 and the polygonal section 52 are located at opposite ends of the hub 42.
- the figure 4 appended is a partial perspective view of a watch according to a second exemplary embodiment.
- the second embodiment has many characteristics in common with the first. This is the reason why we will describe in detail only the characteristics which distinguish the watch from the figure 4 from that of figures 1 to 3 . It will also be noted that the elements represented in the figure 4 which are identical or similar to elements of the first embodiment are designated by the same reference number increased by 100.
- the watch represented in the figure 4 comprises a watch movement 102 which is surmounted by a dial (not shown) above which display means (not shown) move.
- the movement is also housed in a watch case comprising a middle part (not shown).
- the watch case is closed on the dial side by a crystal (not shown) which is fixed to the case middle by means of a bezel (not shown).
- the illustrated watch further comprises a rod and pull-cord control mechanism.
- the stem (not shown) extends between the inside of the movement 102 and the outside of the watch case through a radial bore passing through the caseband. Traditionally, the end of the stem which protrudes outside the watch carries a winding crown (referenced 128).
- a crown tube 124 is driven into the bore of the middle part, and the stem passes inside this tube.
- the pull rod 130 of the control mechanism is mounted on a shaft (not shown) which is pivoted in the frame of the movement 102.
- the pull rod 130 comprises an arm provided with a tenon (not shown) arranged to create a coupling between the rod and the zipper coming to be housed in an annular groove (not shown) that has the rod.
- the control mechanism also includes a leaf spring 136 which is arranged to bias the tenon into the groove of the rod. Referring again to the figure, it can be seen that a portion 146 of the pull tab 130 projects out of the movement 102 so as to constitute a gripping arm. It will be understood that it is possible to disengage the pin from the annular groove by simply lifting the projecting part 146.
- the figure 4 further shows an extractor lever 140 which is intended to lift the projecting part 146 of the pull tab 130 so as to uncouple the rod from the pull tab.
- the extractor lever 140 is designed to be actuated by a watchmaker using a tool introduced from the dial side of the watch case when the glass and the bezel are removed and the movement 102 is still fitted.
- the extractor lever 140 comprises a hub 142, as well as a first and a second arm (respectively referenced 144 and 152) which extend on either side to from the hub.
- the extractor lever 140 is housed in a space provided between the caseband and the edge of the movement 102, and the hub 142 of the lever extends longitudinally from the inner end of the crown tube 124 in the direction of the edge of the movement 102 It has a recess in which the inner end of the crown tube 124 is engaged, so that the extractor lever 140 is pivoted coaxially with the bore hole of the crown tube 124.
- the second arm 152 of the extractor lever 140 is shaped to cooperate with the tip of a pointed tool, such as a plastic or wooden dowel. As shown in the figure, the second arm 152 comprises a cup (not referenced).
- a watchmaker can pivot the extractor lever 140 by pushing the second arm 152 towards the bottom of the watch case using the tip of a peg introduced into the case from the dial side.
- the projecting part 146 of the pull tab 130 is on the trajectory of the first arm 144 of the extractor lever 140. Under these conditions, the first arm pushes the part 146 of the pull tab upwards when the watchmaker pushes the second arm 152 upwards. low.
- the extractor lever 140 is preferably shaped so that the cup of the second arm 152 is opposite a gap which separates the edge of the dial from the inner wall of the caseband. Thanks to this characteristic, it is possible to press against the bottom of the cuvette with the tip of the peg, after having made it pass between the dial and the caseband, the peg being held vertically throughout the operation. Unlike the second arm 152, the part 146 of the pull tab 130 generally does not extend far enough to be opposite the gap between the dial and the caseband. This is the reason why, in the present example, the end of the first arm 144 is closer to the center of the movement 102 than is the cup of the second arm 152. This difference is the reason why, in the figure 4 , the first and the second arm of the extractor lever 140 are staggered axially. We will understand that the the difference between the two arms depends on the difference in diameter between the movement and the dial.
- the bezel and the crystal are removed in a conventional manner to expose the gap separating the dial and the caseband.
- the end of the peg is then passed through this interstice in order to introduce it into the space separating the caseband from the edge of the movement 102.
- the peg is then used to push back the second arm 152, so as to rotate the lever 140 in the appropriate direction to lift the pull tab 130 and disengage it from the stem groove. It is then possible to extract the stem from the watch case by pulling on the crown 128.
- the movement 102 can then be taken out of the case without difficulty by conventional means.
- the pull tab could be flexible and be mounted on an axis which is not movable longitudinally.
- the return means could advantageously be constituted by the pull tab itself.
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- Electric Clocks (AREA)
Abstract
La montre comporte une boîte comprenant une carrure, une tige de commande coopérant avec une tirette (130), et un levier extracteur (140) permettant de soulever la tirette pour la dégager de la tige de commande. Le levier extracteur (140) est monté de façon à pouvoir pivoter à l'intérieur d'un espace ménagé entre la carrure et la tranche du mouvement (102). Il comprend un moyeu (142) et au moins un bras (144, 152) s'étendant latéralement à partir du moyeu. Le levier extracteur (140) est apte à être actionné en pivotement à l'aide d'un outil introduit depuis le côté cadran de la boîte de montre. De plus, une partie (146) de la tirette (130) est agencée de manière à faire saillie hors du mouvement (102) sur la trajectoire du bras (144) du levier extracteur (140), de sorte qu'en pivotant, ce dernier puisse repousser la partie saillante (146) de la tirette (130), pour soulever cette dernière à l'encontre des moyens de rappel (136).The watch comprises a case comprising a middle part, a control rod cooperating with a pull tab (130), and an extractor lever (140) making it possible to lift the pull tab to disengage it from the control rod. The extractor lever (140) is mounted so as to be able to pivot inside a space provided between the case middle and the edge of the movement (102). It includes a hub (142) and at least one arm (144, 152) extending laterally from the hub. The extractor lever (140) is capable of being actuated in pivoting using a tool introduced from the dial side of the watch case. Moreover, a part (146) of the pull tab (130) is arranged so as to protrude out of the movement (102) on the path of the arm (144) of the extractor lever (140), so that by pivoting, this the latter can push the projecting part (146) of the pull tab (130) to lift the latter against the return means (136).
Description
La présente invention concerne une montre comportant :
- une boîte de montre comprenant une carrure, la boîte étant fermée de part et d'autre par un fond et un verre,
- un mouvement horloger logé à l'intérieur de la boîte de montre,
- un mécanisme de commande à tige et tirette comprenant une tige s'étendant entre l'intérieur du mouvement et l'extérieur de la boîte de montre en traversant la carrure, et une tirette fixée sur un pivot sensiblement perpendiculaire au plan du mouvement, la tirette étant soumise à l'action de moyens de rappel tendant à la maintenir en prise avec la tige, et
- un levier extracteur permettant de dégager la tirette de la tige.
- a watch case comprising a middle part, the case being closed on either side by a back and a glass,
- a watch movement housed inside the watch case,
- a rod and pull-bar control mechanism comprising a rod extending between the inside of the movement and the outside of the watch case by crossing the middle part, and a pull-tab fixed to a pivot substantially perpendicular to the plane of the movement, the pull-tab being subjected to the action of return means tending to maintain it in engagement with the rod, and
- an extractor lever allowing the pull tab to be released from the rod.
Dans les montres comportant un mécanisme de commande à tige et tirette classique, la tirette est montée à pivotement sur la platine du mouvement et elle est soumise à l'action de moyens de rappel prévus pour l'engager dans une gorge de la tige. Lorsqu'on désire retirer la tige du mouvement, il est nécessaire de faire sortir la tirette de la gorge de la tige. Pour ce faire, il faut normalement actionner l'axe de tirette à l'encontre des moyens de rappel depuis le côté fond.In watches comprising a control mechanism with a conventional stem and pull tab, the pull tab is pivotally mounted on the plate of the movement and it is subjected to the action of return means provided to engage it in a groove of the stem. When you want to remove the stem from the movement, it is necessary to pull the pull tab out of the groove of the stem. To do this, it is normally necessary to actuate the pull rod against the return means from the bottom side.
Dans le cas notamment de calibre extra-plats, il peut être avantageux que le fond de la boîte de montre vienne de matière avec la carrure. On comprendra en effet que cette caractéristique permet d'éliminer les moyens d'accouplement entre le fond et la carrure. Il est ainsi possible de réduire l'épaisseur de la boîte. Cette caractéristique permet naturellement aussi de résoudre certains problèmes d'étanchéité. Le prix à payer pour ces avantages est qu'on obtient une boîte de montre dont le fond ne peut pas être enlevé. Il n'est donc pas possible d'accéder au mouvement de la montre depuis le côté fond pour dégager la tirette de la tige.In the case in particular of extra-thin calibers, it may be advantageous for the back of the watch case to be integral with the middle part. It will in fact be understood that this feature makes it possible to eliminate the means of coupling between the caseback and the caseband. It is thus possible to reduce the thickness of the box. This characteristic naturally also makes it possible to solve certain sealing problems. The price to pay for these advantages is that one obtains a watch case whose bottom cannot be removed. It is not therefore not possible to access the movement of the watch from the back side to release the pull tab from the stem.
La solution la plus courante pour pallier ce problème consiste à utiliser, soit à une tige arrachable, soit à une tige brisée. Dans le cas d'une tige arrachable, la gorge de la tige dans laquelle est engagée l'extrémité de la tirette est inclinée. Ce genre de tige est peu fiable en raison d'un risque important d'arrachage par l'utilisateur. Une tige brisée est une tige en deux parties. La première partie est accouplée au mouvement, alors que la deuxième partie est prévue pour être introduite à travers un orifice de la carrure. On trouve notamment la description d'une telle tige dans le document de brevet
Le document de brevet
Cette dernière solution présente également certains défauts. Tout d'abord, les figures du document
Un autre problème de cette construction connue se pose plus particulièrement lorsque le diamètre du cadran est considérablement plus grand que celui du mouvement. En effet, pour permettre d'atteindre et d'actionner sans trop de difficultés le bras du levier extracteur qui fait saillie hors du mouvement, il faut que ce dernier soit positionné en regard de l'interstice entre le cadran et la carrure. Comme le montre d'ailleurs les figures du document
Un but de la présente invention est de remédier aux inconvénients de l'art antérieur qui viennent d'être expliqués. La présente invention atteint ce but ainsi que d'autres en fournissant une montre qui comporte un mécanisme de commande à tige et tirette et qui est conforme à la revendication 1 annexée.An object of the present invention is to remedy the drawbacks of the prior art which have just been explained. The present invention achieves this object as well as others by providing a watch which includes a pin and pull mechanism and which is in accordance with appended claim 1.
Conformément à l'invention, le levier extracteur est monté de façon à pouvoir pivoter à l'intérieur d'un espace ménagé entre la carrure et la tranche du mouvement. Le levier extracteur comprend un moyeu et au moins un bras s'étendant latéralement à partir du moyeu. Il est en outre apte à être actionné en pivotement à l'aide d'un outil introduit depuis le côté cadran de la boîte de montre. D'autre part, une partie de la tirette est agencée de manière à faire saillie hors du mouvement sur la trajectoire du bras du levier extracteur, de sorte qu'en pivotant, ce dernier puisse repousser la partie saillante de la tirette, pour soulever cette dernière à l'encontre des moyens de rappel. Un avantage est qu'il n'est pas nécessaire de prévoir un dégagement dans la platine pour y loger le levier extracteur. De plus, comme le levier extracteur est entièrement logé à l'extérieur du mouvement, sa réalisation et son installation dans la montre ne demandent pas une grande précision.In accordance with the invention, the extractor lever is mounted so as to be able to pivot inside a space provided between the caseband and the edge of the movement. The puller lever includes a hub and at least one arm extending laterally from the hub. It is further able to be actuated by pivoting with the aid of a tool introduced from the dial side of the watch case. On the other hand, part of the pull tab is arranged in such a way as to protrude out of the movement in the path of the arm of the extractor lever, so that by pivoting, the latter can push back the protruding part of the pull tab, to lift this last against the recall means. An advantage is that it is not necessary to provide a clearance in the plate to accommodate the extractor lever there. Moreover, as the extractor lever is entirely housed outside the movement, its production and installation in the watch do not require great precision.
Conformément à un mode de réalisation avantageux, le moyeu du levier extracteur est engagé dans un trou percé dans la paroi intérieure de la carrure, de façon à être guidé pour pivoter coaxialement au trou. Dans de nombreux cas qui sont conforme à ce mode de réalisation, un arbre ou un tenon est encore inséré dans le trou de manière à dépasser de la carrure en direction de la tranche du mouvement. Dans ces cas, on comprendra que le moyeu du levier extracteur pivote autour de l'arbre ou du tenon. Le mode de réalisation ci-dessus est particulièrement simple et ne requiert aucun composant couteux. En effet, la plupart des montres connues comportent déjà au moins un perçage servant de passage pour un arbre qui dépasse de la carrure en direction de la tranche du mouvement. On pense en particulier au perçage à travers lequel passe la tige de remontage et de mise à l'heure, mais également par exemple au perçage à travers lequel passe la tige d'un poussoir.According to an advantageous embodiment, the hub of the extractor lever is engaged in a hole drilled in the inner wall of the caseband, so as to be guided to pivot coaxially with the hole. In many cases which are in accordance with this embodiment, a shaft or a tenon is still inserted in the hole so as to protrude from the middle in the direction of the edge of the movement. In these cases, it will be understood that the hub of the extractor lever pivots around the shaft or the tenon. The above embodiment is particularly simple and does not require any expensive components. Indeed, most known watches already include at least one bore serving as a passage for a shaft which protrudes from the caseband in the direction of the edge of the movement. One thinks in particular of the hole through which the winding and time-setting stem passes, but also, for example, of the hole through which the stem of a pusher passes.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés dans lesquels :
- la
figure 1 est une vue partielle en perspective montrant notamment le mécanisme à tige et tirette et le levier extracteur d'une montre conforme à un premier mode de réalisation particulier de l'invention ; - la
figure 2 est une vue partielle en coupe-perspective de la montre de lafigure 1 , la tige et le levier extracteur étant visible en coupe longitudinale ; - la
figure 3 est une vue en perspective du levier extracteur de la montre desfigures 1 et2 ; - la
figure 4 est une vue partielle en perspective montrant notamment la tirette et le levier extracteur d'une montre conforme à un deuxième mode de réalisation particulier de l'invention.
- the
figure 1 is a partial perspective view showing in particular the stem and pull-tab mechanism and the extractor lever of a watch according to a first particular embodiment of the invention; - the
figure 2 is a partial sectional perspective view of the watch from thefigure 1 , the rod and the extractor lever being visible in longitudinal section; - the
picture 3 is a perspective view of the watch extractor lever from thefigure 1 and2 ; - the
figure 4 is a partial perspective view showing in particular the pull tab and the extractor lever of a watch according to a second particular embodiment of the invention.
Les
La montre illustrée comprend encore un mécanisme de commande à tige et tirette permettant de la remonter et de la mettre à l'heure manuellement. La tige du mécanisme de commande est référencée 26. Elle s'étend entre l'intérieur du mouvement 2 et l'extérieur de la boîte de montre en traversant la carrure 12 (
Le mécanisme de commande comprend également une tirette 30 qui est couplée avec la tige 26. La tirette 30 est montée sur un arbre (non représenté) pivoté dans la platine et dont l'axe s'étend sensiblement perpendiculairement au plan du mouvement. Conformément au mode de réalisation qui fait l'objet du présent exemple, l'arbre a également la possibilité de coulisser axialement à l'intérieur du mouvement de façon à décaler la tirette 30 en hauteur. En se référant plus particulièrement à la
La montre comprend encore un levier extracteur 40 destiné à soulever la tirette 30 de façon à dégager le tenon 32 de la gorge 34 pour libérer la tige de commande 26. Le levier extracteur 40 est prévu pour être actionné par un horloger à l'aide d'un outil 50 introduit depuis le côté cadran de la boîte de montre lorsqu'on a ôté le verre et la lunette, mais que le mouvement 2 est encore emboîté.The watch also includes an
En se référant plus particulièrement à la
Le moyeu 42 du levier extracteur est conformé de manière à être apte à coopérer avec un outil du genre clé ou analogue. Grâce à cette caractéristique, un horloger peut se servir d'une clé 50 pour faire pivoter le levier 40. Pour ce faire, il lui suffit d'introduire d'abord la clé 50 dans la boîte de montre depuis le côté cadran, après avoir ôté la lunette. Comme le montre la
En se référant à nouveau à la
En se référant maintenant à la
Pour retirer la tige 26 de la montre, on peut procéder de la façon suivante. On retire d'abord le verre et la lunette de façon classique pour exposer l'interstice séparant le cadran 4 et la carrure 12. On fait alors passer l'extrémité de la clé 50 à travers cet interstice afin de l'introduire dans l'espace séparant la carrure 12 de la tranche du mouvement 2 et d'amener la fourche de la clé en prise avec le tronçon polygonal 52 du moyeu 42 du levier extracteur. On se sert ensuite de la clé 50 pour faire pivoter le levier 40 dans le sens approprié pour soulever la tirette 30 et la désengager de la gorge 34. Il est alors possible de tirer longitudinalement sur la tige 26 pour l'extraire de la boîte de montre. Le mouvement 2 peut ensuite être sorti sans peine de la boîte 8 par des moyens classiques.To remove
La
La montre représentée dans la
La
Le deuxième bras 152 du levier extracteur 140 est conformé pour coopérer avec la pointe d'un outil pointu, tel qu'une cheville en plastique ou en bois. Comme le montre la figure, le deuxième bras 152 comporte une cuvette (non référencée). Un horloger peut faire pivoter le levier extracteur 140 en repoussant le deuxième bras 152 en direction du fond de la boîte de montre en se servant de la pointe d'une cheville introduite dans la boîte depuis le côté cadran. La partie saillante 146 de la tirette 130 se trouve sur la trajectoire du premier bras 144 du levier extracteur 140. Dans ces conditions, le premier bras repousse la partie 146 de la tirette vers le haut quand l'horloger repousse le deuxième bras 152 vers le bas. Le levier extracteur 140 est de préférence conformé de manière que la cuvette du deuxième bras 152 se trouve en regard d'un interstice qui sépare le bord du cadran de la paroi intérieure de la carrure. Grâce à cette caractéristique, il est possible de presser contre le fond de la cuvette avec la pointe de la cheville, après l'avoir faite passer entre le cadran et la carrure, la cheville étant tenue verticalement pendant toute l'opération. Contrairement au deuxième bras 152, la partie 146 de la tirette 130 ne s'étend généralement pas assez loin pour se trouver en regard de l'interstice entre le cadran et la carrure. C'est la raison pour laquelle, dans le présent exemple, l'extrémité du premier bras 144 est plus proche du centre du mouvement 102 que ne l'est la cuvette du deuxième bras 152. Cette différence est la raison pour laquelle, dans la
Pour retirer la tige de la montre, on peut procéder de la façon suivante. On retire d'abord la lunette et le verre de façon classique pour exposer l'interstice séparant le cadran et la carrure. On fait alors passer l'extrémité de la cheville à travers cet interstice afin de l'introduire dans l'espace séparant la carrure de la tranche du mouvement 102. On se sert ensuite de la cheville pour repousser le deuxième bras 152, de manière à faire pivoter le levier 140 dans le sens approprié pour soulever la tirette 130 et la désengager de la gorge de la tige. Il est alors possible d'extraire la tige de la boîte de montre en tirant sur la couronne 128. Le mouvement 102 peut ensuite être sorti sans peine de la boîte par des moyens classiques.To remove the stem from the watch, you can proceed as follows. First, the bezel and the crystal are removed in a conventional manner to expose the gap separating the dial and the caseband. The end of the peg is then passed through this interstice in order to introduce it into the space separating the caseband from the edge of the
On comprendra en outre que diverses modifications et/ou améliorations évidentes pour un homme du métier peuvent être apportées aux modes de réalisation qui font l'objet de la présente description sans sortir du cadre de la présente invention définie par les revendications annexées. En particulier, la tirette pourrait être flexible et être montée sur un axe qui n'est pas mobile longitudinalement. Dans ce cas, les moyens de rappel pourraient avantageusement être constitués par la tirette elle-même.It will also be understood that various modifications and/or improvements obvious to a person skilled in the art can be made to the embodiments which are the subject of the present description without departing from the scope of the present invention defined by the appended claims. In particular, the pull tab could be flexible and be mounted on an axis which is not movable longitudinally. In this case, the return means could advantageously be constituted by the pull tab itself.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP20190985.0A EP3955066A1 (en) | 2020-08-13 | 2020-08-13 | Watch comprising a control mechanism with setting stem and pull-out piece |
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Application Number | Priority Date | Filing Date | Title |
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EP20190985.0A EP3955066A1 (en) | 2020-08-13 | 2020-08-13 | Watch comprising a control mechanism with setting stem and pull-out piece |
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EP3955066A1 true EP3955066A1 (en) | 2022-02-16 |
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EP20190985.0A Pending EP3955066A1 (en) | 2020-08-13 | 2020-08-13 | Watch comprising a control mechanism with setting stem and pull-out piece |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH77268A (en) * | 1917-12-15 | 1918-04-01 | Zenith Montres | Sophisticated winding and time-setting mechanism, with pull tab |
FR563087A (en) * | 1922-03-16 | 1923-11-26 | Montres Zenith Fab Des | Winding and time-setting mechanism known as <positive or pull-tab>, for watches |
US2434390A (en) * | 1943-04-24 | 1948-01-13 | Bulova Watch Co Inc | Watch stem-winding and-setting mechanism |
US2786327A (en) * | 1954-09-18 | 1957-03-26 | Fontainemelon Horlogerie | Pull-to mechanism for rewinding and time setting a time-piece |
CH356718A (en) * | 1959-08-28 | 1961-08-31 | Fontainemelon Horlogerie | Winding and setting mechanism with pull tab, for timepiece |
CH558039A (en) | 1972-04-26 | 1975-01-15 | Wrist watch winding and correction stem - with resilient stop selectively coupled with winding stem to prevent its removal | |
JPS5086567U (en) * | 1973-12-12 | 1975-07-23 | ||
FR2522840A1 (en) * | 1982-03-02 | 1983-09-09 | Inst Chasovoi Promyshlennost | Electronic-mechanical watch hand and calendar correction device - has double rim toothed coupling on time setting shaft cooperating with date and time correction rings |
EP0762241A1 (en) * | 1995-09-04 | 1997-03-12 | SMH Management Services AG | Timepiece including a control mechanism with stem and trigger piece |
CH702798B1 (en) | 2010-03-04 | 2015-02-27 | Patek Philippe Sa Geneve | Timepiece including a case containing a broken stem movement. |
-
2020
- 2020-08-13 EP EP20190985.0A patent/EP3955066A1/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH77268A (en) * | 1917-12-15 | 1918-04-01 | Zenith Montres | Sophisticated winding and time-setting mechanism, with pull tab |
FR563087A (en) * | 1922-03-16 | 1923-11-26 | Montres Zenith Fab Des | Winding and time-setting mechanism known as <positive or pull-tab>, for watches |
US2434390A (en) * | 1943-04-24 | 1948-01-13 | Bulova Watch Co Inc | Watch stem-winding and-setting mechanism |
US2786327A (en) * | 1954-09-18 | 1957-03-26 | Fontainemelon Horlogerie | Pull-to mechanism for rewinding and time setting a time-piece |
CH356718A (en) * | 1959-08-28 | 1961-08-31 | Fontainemelon Horlogerie | Winding and setting mechanism with pull tab, for timepiece |
CH558039A (en) | 1972-04-26 | 1975-01-15 | Wrist watch winding and correction stem - with resilient stop selectively coupled with winding stem to prevent its removal | |
JPS5086567U (en) * | 1973-12-12 | 1975-07-23 | ||
FR2522840A1 (en) * | 1982-03-02 | 1983-09-09 | Inst Chasovoi Promyshlennost | Electronic-mechanical watch hand and calendar correction device - has double rim toothed coupling on time setting shaft cooperating with date and time correction rings |
EP0762241A1 (en) * | 1995-09-04 | 1997-03-12 | SMH Management Services AG | Timepiece including a control mechanism with stem and trigger piece |
CH702798B1 (en) | 2010-03-04 | 2015-02-27 | Patek Philippe Sa Geneve | Timepiece including a case containing a broken stem movement. |
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