• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a wristwatch (1) comprising a housing (2) and at least one complication using at least one aneroid capsule (16). According to the invention, said aneroid capsule (16) controls the displacement of at least a first (17) and a second needle (27), with different gear ratios, each needle delivering a separate information related to the atmospheric pressure.
    公开号:CH707513B1
    申请号:CH00805/14
    申请日:2011-11-28
    公开日:2016-11-30
    发明作者:Dupontreue Vincent
    申请人:Vdw；
    IPC主号:
    专利说明:

    1. Field of the invention
    The field of the invention is that of watchmaking. More specifically, the invention relates to wristwatches comprising a complication having a mechanical movement.
    Thus, the invention particularly relates to mechanical wristwatches (as opposed to watches equipped with electronic means) mechanical complication.
    2. Prior Art
    [0003] A mechanical wristwatch conventionally comprises a case, equipped with a bracelet, making it possible to hold the watch around the wrist of a user. The housing comprises a bottom, intended to come into contact with the skin of the wrist (which may be for example metallic, or partially or entirely transparent), and a transparent upper part, generally made of glass or corundum, making it possible to see one or more dials and one or more needles, including first needles indicating the time.
    The housing contains in particular a clockwork mechanism, known per se, for controlling the movement of these first needles. The housing can be equipped with one or more crowns or setting pushbuttons, in particular to adjust the time and, if necessary, to reassemble the watch.
    It is known to equip watches with additional functions, other than the function of indicating the time. These functions are generally referred to as complication. Thus, watches may include complications to indicate the phases of the moon, the date, the level of the tide, ...
    Despite the existence of these many known complications, there is a strong expectation of users of new watches, fully mechanical, offering new complications. Indeed, electronic watches nowadays offer a large number of applications (for example: altimeter, depth gauge, measurement of physiological information of the wearer, etc.).
    The implantation of a new complication using an aneroid capsule in a watch case, to measure a pressure, has been considered in particular in document CH 376 438. Such a complication can, however, give only an absolute value of the atmospheric pressure, which is in practice unusable by the user. Indeed, depending on the position of the user, the pressure displayed may vary both under the effect of altitude and under the effect of weather conditions.
    3. Objective of the invention
    The invention particularly aims to overcome these disadvantages of the prior art.
    More specifically, an objective of the invention, according to at least one embodiment, is to provide a mechanical wristwatch, to give effective indications of climatic conditions.
    Another object of the invention, according to at least one embodiment, is to provide such a wristwatch to indicate the altitude at which the user is.
    [0011] In general, the invention aims to provide such a wristwatch to give several useful information to the user.
    4. Presentation of the invention
    These objectives, as well as others which will appear more clearly later are achieved with the aid of a wristwatch comprising a housing and at least one complication using at least one aneroid capsule.
    According to the invention, said aneroid capsule controls the displacement of at least a first and a second needle, with different gear ratios, each needle delivering a separate piece of information related to the atmospheric pressure.
    Thus, a wristwatch according to the invention comprises, in a miniaturized form, at least one aneroid capsule may be of the type used in an aneroid barometer, which is integrated in a complication to deliver two separate information. related to the atmospheric pressure thanks to two needles in relation with this same capsule. A different gear ratio between the two needles provides these two separate information.
    This gear ratio allows one of the two needles to give information related to the absolute value of atmospheric pressure, and the other needle to give information related to a small pressure variation over a period of time . It should be noted that each of these information can not be read on the needle intended to give the other information.
    By "displacement of a needle", we understand the relative movement of a needle relative to a dial to give a measurement. Thus, this displacement could be the angular displacement of a dial with respect to a fixed needle or reference point or any other equivalent method. The person skilled in the art of watchmaking knows in fact such methods of measurement indications which are equivalent to the movement of a needle on a dial.
    Thus, the watch, according to the invention, differs from barometers that can give reliable weather indication only if they are maintained at a constant altitude. It is also distinguished altimeters whose accuracy and display mode absolutely do not allow to effectively measure a small change in pressure corresponding to a change in time.
    Advantageously, a first needle has a gear ratio greater than 25 times that of a second needle. According to a preferred embodiment, this reduction is 36 times that of the second hand.
    Such a gear ratio allows easy reading of each of the separate information given by these needles.
    Preferably, said first needle delivers information representative of an evolution of the meteorological conditions.
    Indeed, for such information, the needle must have the largest gear ratio to measure small pressure differences, of the order of one hectopascal. Furthermore, this needle is preferably associated with a reference point, which may for example be constituted by a dial or a needle that can be moved by the user. The user can easily memorize the position of the needle at a given time, to see later changes in atmospheric pressure over time.
    According to one embodiment, said first needle delivering information representative of a changing weather conditions displays said information on a mobile dial.
    Such a dial, which can be moved by the user, allows to replace the adjustment screw, present in a conventional aneroid barometer. It allows the user, during a change of altitude, to adjust the needle to an average value of pressure, without acting on the mechanical connection between the aneroid capsule and the needle. Indeed, the miniaturization of the capsule and the complexity and fragility of the mechanism would make it difficult to intervene on this mechanical link. In addition, this dial also serves as a reference needle during a double measurement of the pressure to evaluate a change in weather conditions.
    Advantageously, said second needle delivers information representative of the altitude.
    This needle has the slightest reduction of the change in thickness of the capsule during a significant pressure change, mainly due to displacement at altitude. This capsule is indeed able to change the value of its thickness of the order of 25%, depending on the atmospheric pressure.
    According to a particular embodiment, said second needle delivering the information representative of the altitude displays said information on a mobile dial.
    Such a dial allows the user himself to correct a small error in the altitude indicated on the watch, due to a pressure variation related to weather conditions, when it is at a point of which it knows the l 'altitude. It can thus, in stable meteorological conditions, obtain an exact measurement of its altitude during a displacement.
    According to another embodiment, said housing is sealed and the wristwatch includes pressure rebalancing means between the inside and outside of the housing.
    The sealing of the case of the wristwatch protects the mechanism of corrosion, even in moisture conditions. The presence of the aneroid capsule in this waterproof housing thus makes the mechanism more reliable. The tightness of the housing preventing the interior of the housing from being put at atmospheric pressure, it was imagined by the inventors to provide a mechanism for balancing pressures. Such a solution is contrary to the prior art of a person skilled in the watchmaking industry who considers that the pressure inside the casing of a waterproof wristwatch must remain constant.
    According to an advantageous embodiment of the invention, said pressure rebalancing means between the inside and the outside of the wristwatch comprise a vent that can be opened by pressing a pushbutton.
    Pressure rebalancing between the inside and the outside of the housing can thus be obtained at the request of the user, which allows to instantly view the pressure variation that has occurred since the last rebalance.
    Moreover, a push button opening a vent, to rebalance the pressures, allows to minimize the amount of air and therefore moisture penetrating into the housing. Preferably this vent has a small section, to avoid distorting the measurements when opening or closing the vent.
    Advantageously, the wristwatch comprises locking means preventing an accidental support on said push button.
    Thus, the user is safe from accidental opening of the vent when wearing his wristwatch or its handling, which could intervene in a humid or dusty environment that could dirty the inside the case. A lock thus ensures a security.
    According to a particular aspect of the invention, the wristwatch is entirely mechanical.
    Thus, the wristwatch does not include any electrical component, and does not require a battery. It should be noted that the complication that is the subject of the invention is necessarily mechanical, insofar as it is based on the deformation of an aneroid capsule.
    Watches capable of giving meteorological information exist in the prior art. But they all use electronic means. The implantation of a new mechanical complication only meets a strong expectation of users of new watches, entirely mechanical, offering new complications.
    According to another particular aspect of the invention, said complication implements two aneroid capsules.
    The need for miniaturization can bring the need to use two capsules instead of one, to increase the accuracy of the pressure measurement.
    5. List of figures
    Other features and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment of the invention, given as a simple illustrative and non-limiting example, and the accompanying drawings. among which:<tb> Fig. 1 <SEP> represents in top view a wristwatch according to one embodiment of the invention;<tb> fig. 2 <SEP> schematically illustrates the mechanism of the wristwatch of FIG. 1 view from above;<tb> fig. 3A <SEP> schematically illustrates the mechanism of the wristwatch of FIG. 1 view from below;<tb> fig. 3B <SEP> is a detail view of the mechanism shown in FIG. 3A;<tb> fig. 4 <SEP> schematically illustrates, in plan view, a portion of the top of the mechanism of the wristwatch shown in FIG. 1.
    6. Detailed statement of an embodiment
    As indicated above, a wristwatch according to one embodiment of the invention comprises a complication able to measure both a pressure giving an indication of the altitude and a pressure variation giving an indication of the evolution. weather conditions, without the use of fluid or electronic means. Indeed, the wristwatch of the invention implements at least one aneroid capsule, responsive to pressure variations and controlling the movement of needles provided for this purpose, by means of levers and gears.
    It is important to remember that the use of such aneroid capsules, also called Vidie capsules, the name of their inventor, is known since 1844. Such aneroid capsules have in fact been used, since that date, in the barographs. The invention is based in particular on the miniaturization of such capsules, whose diameter is reduced to about 15 mm and on the display mode of the pressure values, allowing the user to benefit from relevant information despite the altitude changes that he can put on his watch.
    In the following description of a preferred embodiment of the invention, will be designated as "horizontal", the directions parallel to the plane of the watch case, and "vertical", the directions perpendicular to this plane. In addition, the wristwatch is described by considering that its dial is turned upwards.
    6.1 Pressure measurement
    In the embodiment of the invention shown in FIG. 1, the wristwatch 1 comprises an airtight housing 2 and a peripheral flank 3, carrying a ring 21 surrounding a pushbutton 22, a ring 24 surrounding a pushbutton 23 and a winding crown 20, and receiving in the upper part a watch glass, to see the dials and hands. Conventionally, it comprises a mechanism for indicating the hour and the minutes on a dial 10, the seconds on a dial 11 and the power reserve on a dial 12. This common mechanism will not be described in more detail here. -after.
    According to the invention, this wristwatch 1 also comprises an aneroidal module 16 resting in the casing 2, which is in relation with an altimeter dial 15 on the one hand and a dial of changing weather conditions, on the other hand. somewhere else.
    In the embodiment shown, this aneroid module 16 is composed of two aneroid capsules 161 and 162 each having a thickness of two millimeters stacked one on the other and having a total thickness of about four millimeters.
    The aneroid capsules 161 and 162 are fixed to the housing 2, for example using a screw 160. For the record, such an aneroid capsule is generally made of cupro-beryllium and vacuum welded to zinc. A partial vacuum is produced inside these capsules. Thus, depending on the variations in pressure, the two faces of the capsules move away or are slightly closer to one another.
    In a preferred embodiment, no spring extends between the two faces of each capsule, in fact, they are produced by welding two pre-deformed cupolas to avoid the need for a spring that would take too much of place.
    It should be noted that in other possible embodiments, a single aneroid capsule or a module comprising a larger number of capsules could be implemented.
    Figs. 2 and 3 A are presentations of the details of the mechanism of transmission of pressure information from the aneroid capsules to two different indicators that can themselves give information on an altitude on the one hand and a change in weather conditions on the other hand.
    FIG. 2 is a top view while FIG. 3A is a bottom view of such a mechanism.
    The deformation movement of the aneroid module 16 is transmitted to a lever 25 which is composed of two parts. The first 251 extends parallel to the plane defined by the capsules. The second portion 252 is perpendicular to the first and substantially vertical. It ends, at its end opposite to that linked to the first part, by a hooking element 253. The central portion of the lever 25 is connected to the housing 2 via a substantially horizontal axis of rotation 254.
    A movement of the upper face of the capsule 161, under the effect of a pressure variation, causes the pivoting of the lever 25, the attachment element 253 drives an end of a lever 26, itself even connected to the housing 2 via a substantially vertical axis of rotation 261. This lever 26 is composed of two parts 263 and 264 substantially perpendicular to each other. The portion 263 is driven by the engaging member 253. The portion 264 has a rack-like end (or racket) 262 engaged with a gear 272 that is rotatable about a substantially vertical axis 271. The motion the lever 26 can be converted into a rotational movement of the toothed wheel 272 and a needle 27, fixed to the toothed wheel.
    A substantially vertical translation movement of the capsule 161 can be transmitted in fine to the needle 27 and indicate information on a dial 15. This information gives, on a large scale, a pressure measurement. It can therefore deliver information representative of the altitude where the user of the wristwatch 1 is located.
    Furthermore, the toothed wheel 272 is also attached to another gear 273, of diameter substantially greater than the toothed wheel 272. This gear 273 is part, in this embodiment, of a gear of a total of six different gear wheels with parallel axes, substantially vertical, which are engaged with each other as explained below.
    For the remainder of the description of this embodiment, the term "small wheel" is conventionally used as being a toothed wheel having a diameter substantially smaller than a "large wheel", itself a substantially diameter toothed wheel. superior to the first.
    The large wheel 273 drives a small wheel 282. The small wheel 282 rotates about an axis 281 and is integral with a large wheel 283. The large wheel 283 drives a small wheel 292 rotating about an axis 291 This small wheel 292 drives a large wheel 303 which rotates about an axis of rotation 301 and is integral with a small wheel 302. This small wheel 302 drives a large wheel 313 which rotates about an axis 311 and is secured to a small wheel 312. This small wheel 312 drives a large wheel 322 which rotates about an axis of rotation 321 and is integral with a spiral spring 323. This spiral spring 323 is attached to the housing 2 of the watch 1-wrist and serves to turn on all the gear and levers described above.
    The small wheel 292, described in the previous paragraph, is linked to a needle or a mobile dial indicating small pressure variations acting on the aneroid module 16. This is made possible by the system of reduction of the original rotation movement. of the lever 25 through the gears gear previously described, which allows a gear reduction thirty-six times greater for the needle connected to the wheel 292 than for the needle connected to the wheel 272. Thus small variations atmospheric pressure can be read and allow an assessment of changing weather conditions.
    6.2 Adjusting the altimeter dial
    According to the preferred embodiment of the invention shown in FIGS. 2, 3A, 3B and 4, it is possible to manually adjust the value of the altitude to a value of 100 m. Indeed, as shown in detail in FIG. 4, the dial of the altimeter 15 is movable around the axis of rotation 271 over an angular range corresponding to 500 m altitude. It is possible to move this dial, in the opposite direction of the clockwise, in successive steps, represented by the arrows 151.
    In the embodiment shown, these bearings have a value equivalent to 100 m altitude each. These successive adjustments are made by successive presses of the pushbutton 22 on the side 3 of the wristwatch 1. Once reached the leftmost landing, a simple new press on the button 22 makes it possible to return directly to the initial stage ( rightmost), as shown by arrow 152.
    The detailed mechanism of this manual adjustment system of the altimeter dial 15 is shown in FIG. 3B, which is a detail view of FIG. 3A.
    Indeed, the dial 15 is carried by a support having two oblong and curved slots 153 which define the angular range of the positions that can take the dial 15 during a manual adjustment of the pressure value.
    A leaf spring 155 tends to return the dial 15 to the rightmost position. Finally, a curved tip 154, linked to this dial, is in contact with a track 343 of a cam 34 having the geometric shape of a spiral or a snail. This cam 34 can rotate about an axis of rotation 341 and is integral with a wheel 342 having the geometric shape of a six-pointed star.
    A leaf spring 35 stabilizes the position of the wheel 342 and the cam 34 in six predetermined angular positions. It comprises a blade bearing against a stop (not shown) and a triangular shaped contact surface 354 tending to be inserted between two branches of the wheel 342.
    A rocker 33 pivotally mounted about an axis 332 connected to the case of the wristwatch 1, carries a tip 331 can act on the legs of the wheel 342 to drive the wheel in rotation.
    The range of circular movement of this rocker 33 is limited by a pin 334 fixed to the housing 2, which passes through a light 333 defined in the end of the rocker 33. This rocker 33 comprises a leaf spring 335, tending to the push towards its non-actuated position, shown in fig. 3B, and a contact surface 336 in relation to the pushbutton 22.
    The operation of the altimeter dial adjustment system 15 is described below.
    The user of the wristwatch 1 presses the pushbutton 22 which pushes the contact surface 336 and pushing the rocker 33 towards the center of the wristwatch 1 by deforming the leaf spring 335. The tip 331 comes into contact with the wheel 342 and makes it thus 1/6 turn (in the sense of the needles of a wristwatch in FIG 3B).
    The cam 34, rotating integrally with the wheel 342, then shifts the tip 154 away from the axis 341, thanks to its particular geometric shape. This offset corresponds to an arrow 151 of FIG. 4, previously described.
    With the pin 334 and the action of the leaf spring 35, the offset is limited to one sixth of a turn of the cam 34 by pressing the button 22.
    A release of the pressure on the pushbutton 22 causes a rest of the rocker 33 under the action of the spring 335.
    Actuation of the button 22 six times thereafter causes the cam 34 to rotate to its position in which the tip 154 is farthest from the axis 341. A seventh pressure causes the tip 154 to the break of continuity 344 of the track 343. The tip 154, under the action of the expansion of the spring 155, then returns to its rightmost position in which it is closest to the axis 341.
    6.3 Refreshing the pressure measurement
    The wristwatch 1 having an airtight housing 2, it is necessary to harmonize the internal pressure of the housing 2 with the atmospheric pressure to be able to read the value of the atmospheric pressure. This is possible thanks to a push-button 23 for venting, associated with a ring 24, visible in FIG. 1. A rotation of a quarter turn of the ring 24 unlocks the push button 23. A pressure on the push button 23 creates a vent in the waterproof case 2 of the wristwatch 1 and allows a rebalancing of the internal pressure with the external pressure of the air. Once the pressure on the push-button 23 is released, the crown 24 automatically rotates and locks the push-button 23.
    The locking of the push button 23 by the ring 24, the implementation of which is known to those skilled in the art, avoids an involuntary pressure of the push button 23. The opening of the vent must indeed be accompanied by certain precautions, to avoid the introduction of moisture into the wristwatch 1.
    6.4 Resetting the needle indicating low pressure variation
    According to another characteristic of an embodiment of the invention, a ring 21 allows, thanks to a single gear, to rotate the dial whose needle 17 indicates a small pressure variation. This feature allows you to reset this measurement in order to predict weather conditions.
    According to another embodiment, a sound click can be heard by the user of the wristwatch 1 each time the dial is adjusted to the order of 1 hPa.
    6.5 Use of the watch
    The new complication of the wristwatch 1 allows the user to obtain a forecast of changing weather conditions or a measurement of the altitude at which it is located. A procedure can be summarized as follows.
    To use this complication, the user rebalances the pressure of the air inside the housing 2 with the external air pressure through the push-button vent 23. The aneroid module 16 deforms according to the atmospheric pressure and drives the altimeter hands, on the one hand, and the forecast of changing weather conditions, on the other hand.
    The altimeter needle, driven by the aneroid module, then moves to indicate the altitude on the dial 15 of the altimeter. This indication has a low uncertainty, less than 250 m, resulting from atmospheric pressure variations due to weather conditions. In fact, the variations of atmospheric pressure at a constant altitude are generally in a range of 30 hPa, which corresponds approximately to the difference in pressure resulting from an altitude change of 300 m.
    Accordingly, if he knows the exact value of his altitude, the user may be required to correct the displayed value by shifting the dial 15 with the help of the pushbutton 22.
    When the user plans to remain at a constant altitude to make a forecast of the changing weather conditions, he can turn the crown 21 to rotate the dial until its reference point 170 faces the face. Needle 17. This needle indicates the pressure with great precision, it makes several full turns when the air shows a change in altitude. On the other hand, when the user carries out an air vent, after a certain duration at a constant altitude, this needle shows the small variations of atmospheric pressure, due to the evolutions of the meteorological conditions, shifting towards the right or towards the left relative to reference point 170.
    The reading on the dial 15 thus allows to see a sudden or slow change in pressure. When reading this new data, an evolution of the meteorological conditions can be foreseen.
    权利要求:
    Claims (11)
    [1]
    A wristwatch (1) comprising a housing (2) and at least one complication using at least one aneroid capsule (161, 162), characterized in that said aneroid capsule (161, 162) controls the displacement of at least a first (17) and a second needle (27), with different gear ratios, each needle delivering a separate information related to the atmospheric pressure.
    [2]
    2. wristwatch (1) according to claim 1, characterized in that the first needle (17) has a gear ratio greater than 25 times that of the second needle (27).
    [3]
    3. wristwatch (1) according to one of claims 1 and 2, characterized in that the information delivered by the first hand (17) is information representative of a changing weather conditions.
    [4]
    4. Wristwatch (1) according to claim 3, characterized in that the first needle (17) delivering the information representative of an evolution of the meteorological conditions displays said information on a mobile dial.
    [5]
    5. Wristwatch (1) according to one of claims 1 to 4, characterized in that the information delivered by the second hand (27) is information representative of the altitude.
    [6]
    6. wristwatch (1) according to claim 5, characterized in that the second needle (27) delivering the information representative of the altitude displays said information on a mobile dial.
    [7]
    7. Wristwatch (1) according to one of claims 1 to 6, characterized in that the housing (2) is sealed and in that it comprises means for rebalancing pressures between the inside and the outside of the housing (2).
    [8]
    8. wristwatch (1) according to claim 7, characterized in that said pressure rebalancing means between the inside and the outside of the housing (2) comprise a vent that can be opened by pressing a pushbutton (23).
    [9]
    9. wristwatch (1) according to claim 8, characterized in that it comprises locking means preventing an accidental support on said push button (23).
    [10]
    10. Wristwatch (1) according to one of claims 1 to 9, characterized in that it is entirely mechanical.
    [11]
    11. wristwatch (1) according to one of claims 1 to 10, characterized in that said complication implements two aneroid capsules.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2013079810A1|2013-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH328502A|1955-11-10|1958-03-15|Hirsch De Metz Andre R|Measuring instrument comprising a wristwatch and an aneroid barometer|
    CH376438A|1961-02-11|1963-12-14|Holding Favre Leuba Ag|Watch combined with an aneroid barometer|
    JP3653746B2|1993-07-01|2005-06-02|セイコーエプソン株式会社|Electronic clock|
    EP1571507A1|2004-03-03|2005-09-07|ETA SA Manufacture Horlogère Suisse|Portable electronic device provided with an analog displayed variometer function|EP2818943B1|2013-06-24|2018-04-25|Montres Breguet SA|Portable object provided with a device for measuring atmospheric pressure|
    CH709067B1|2013-12-16|2018-08-31|Oris Sa|Clock with barometric pressure sensor.|
    GB2527316A|2014-06-17|2015-12-23|Bramwell Brown Ltd|Barometer clock|
    GB2543293B|2015-10-13|2021-10-20|Bramwell Brown Ltd|Iris barometer clock|
    法律状态:
    2019-02-15| PUE| Assignment|Owner name: BREVA GENEVE HAUTE HORLOGERIE SA, CH Free format text: FORMER OWNER: VDW, FR |
    2021-06-30| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/FR2011/052800|WO2013079810A1|2011-11-28|2011-11-28|Wristwatch including a mechanical complication comprising at least one aneroid capsule|
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