• 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 timepiece comprising a watch case (18) and a watch movement (14) disposed inside the watch case (18), said timepiece further comprising a watch sensor (18). pressure arranged to provide a displacement in response to a change in pressure and to drive display means (16) comprising a movable indicator next to a graduated scale for displaying on said scale the surrounding pressure of the workpiece. watchmaking. The pressure sensor is kinematically connected to the display means (16) by a transmission member (20) capable of transmitting said displacement of the pressure sensor to a conversion member (12) kinematically connected to said display means (16) . According to the invention, the transmission member (20) comprises a first part integral in displacement of said pressure sensor and a second part mounted on said first part, said second part being movable with reference to the latter and able to cooperate with the first part. conversion member (12).
    公开号:CH712967A2
    申请号:CH01187/17
    申请日:2017-09-28
    公开日:2018-03-29
    发明作者:Andres David
    申请人:Officine Panerai Ag；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD [0001] The present invention relates to the field of watchmaking. It relates, more particularly, to a timepiece comprising a watch case and a clockwork movement disposed inside the watch case. The timepiece further comprises a pressure sensor arranged to provide a displacement in response to a variation of pressure and to drive display means for displaying on the timepiece information relating to the surrounding pressure of the watch. timepiece.
    The pressure sensor is connected to the display means by a conversion member kinematically connected to said display means. This type of timepiece is used especially in depth meters to measure the depth during dives.
    State of the art [0003] Timepieces of the above type are known from the state of the art. Fig. 1 illustrates the scheme of operation of such a room. A pressure sensor, in the form of a membrane 10, is mounted in contact with a conversion member 12, forming part of the watch movement 14. The manner in which the latter is connected to the display means 16 is known and does not need to be further described.
    The deformations undergone by the membrane 10 under the effect of pressure, are transmitted directly to the conversion member 12, whose position is translated by the display means 16. It is thus understood that the position of the conversion member 12 at a reference level corresponds, for the display means 16, to a Zero display, or in any case to a display of a predetermined reference level. This reference position is generally determined at a usual atmospheric pressure of the order of 1 bar (1013 hPa). However, the reference position of the conversion member 12 depends directly on the relative position of the membrane 10 with respect to the movement 14.
    Thus, during nesting, the operator must verify that the display means 16 are at zero when the box 18 is closed. If it is not the case, it must proceed to disassembly and an adjustment of the position of the movement 14 in the box 18, which is a long and delicate operation. It is also necessary to go to the end of the casing to check the setting, which must be resumed until a satisfactory result is obtained.
    [0006] A piece made by C. Frodsham, London, approx. 1905 (see Das Tourbillon by Reinhard Meis, Callwey Verlag, Munich, 1993, pp.294-295) presents a solution to this problem. A schematic representation of the barometer system of this piece is reproduced in fig. 6. In this system, a first face of the aneroid capsule 10 is anchored to a bridge 100, and the other face is pulled outwardly through a leaf spring 101 which is surrounded around a shaft 102 so as to provide a preload to the spring 101. This shaft 102 is rotatable and is integral with a lever 103 carrying a set screw 104 which bears against a frame member 105 adjacent the spring 101, and under the effect of the same spring 101. By turning the screw 104, the angular position of the lever 103 can be varied, which changes the tension applied by the leaf spring 101 on the aneroid capsule to pull it to the outside. The free end of the leaf spring 101 is kinematically connected to the needle which indicates the pressure, and together with other connecting elements constitutes the conversion member 12. The indication provided by the needle 16 may thus be be adjusted via the screw. This solution is not very compact, and requires several additional bulky elements.
    [0007] DE 68 038 discloses a barometer pocket watch in which the axial position of the aneroid capsule can be modified. The capsule is carried by a curved spring pivotally mounted on the frame and whose angle can be varied by means of a pointed screw. The face of the capsule opposite to that which is mounted on the spring is in kinematic connection with the corresponding display member. By turning the screw, the axial position of the capsule can be changed, which also changes the indication and allows to adjust it manually.
    [0008] Document CH 448 901 describes a diving watch having two movements, the first being conventional and the second being annular, surrounding the first. The course of this second movement varies according to the pressure of the water in which the user plunges. When the part is exposed to atmospheric pressure, a dial bearing indications of the decompression stops of a dive is driven by the first movement at the rate of one revolution per hour so that the indication of "0" is found always facing the minute hand. During a dive, the second movement is started and drives the dial at a speed that is a function of pressure. The dial is therefore ahead of the minute hand. In order to obtain a step which is dependent on the pressure, the pressure sensor is in kinematic connection with the second movement snapping so that the step is accelerated when the pressure increases. However, this piece does not indicate the depth of the dive, and there is no kinematic connection between the pressure sensor and a visible element.
    [0009] Other embodiments of watches comprising pressure sensors are disclosed by WO 2013/079 810 and US 2 986 038.
    The present invention therefore aims to provide a timepiece with a pressure sensor, the setting of the display means is free of the aforementioned drawbacks.
    Disclosure of the invention [0011] More specifically, the invention relates to a timepiece comprising a watch case and a clockwork movement disposed inside the watch case, said piece still comprising a sensor pressure sensor arranged to provide a displacement in response to a variation of pressure and to drive display means comprising a movable indicator next to a graduated scale for displaying on the scale the surrounding pressure of the timepiece . This pressure can be expressed according to commonly used units (bar, atm, mbar, Pa, mm Hg, etc.) or according to an indication of altitude or depth, if any.
    The pressure sensor is connected kinematically or desmodromically to the display means by a transmission member adapted to transmit the displacement of the pressure sensor to a conversion member kinematically connected to said display means.
    According to the invention, the transmission member comprises a first portion integral in displacement of said pressure sensor and a second portion mounted on said first portion and movable with reference to the latter and adapted to cooperate with the conversion member. . Thus, by moving the second part with reference to the first, one can act on the adjustment of the position of the conversion member and therefore the display means, without having to adjust the position of the movement or the sensor in the box. Moreover, since the second adjustable part is in the driveline extending from the pressure sensor and the moving indicator, this solution is extremely compact in comparison with the other solutions of the prior art, where the adjustment performs outside this kinematic link.
    BRIEF DESCRIPTION OF THE DRAWINGS [0014] Other details of the invention will appear more clearly on reading the description which follows, made with reference to the appended drawing in which, in addition to FIG. 1 relating to the state of the art: FIG. 2 is a sectional and schematic view of a timepiece according to the invention, FIG. 3 shows a detail of FIG. 2, FIG. 4 proposes a variant of the invention; fig. 5 still proposes a variant of the invention; and FIG. 6 schematically illustrates another solution of the prior art.
    Embodiment of the Invention [0015] FIG. 2 represents a timepiece according to the invention, comprising a watch case 18 and a watch movement 14 disposed inside the watch case 18. The timepiece further comprises a pressure sensor arranged to provide displacement in response to a change in the external pressure to which it is subjected. The pressure sensor may take the form of a membrane 10. It is also arranged to drive display means 16 for displaying on the timepiece information relating to the surrounding pressure of the timepiece. In principle, the display means 16 are assembled on the watch movement. Usually, the display means 16 comprise a graduated scale, and a mobile indicator opposite the scale. In diving watches, the graduation is used to indicate the pressure in the form of a diving depth. In addition, altimeter watches typically indicate pressure in the form of an altitude and / or using units such as mbar, atm, mm Hg or the like.
    The pressure sensor is connected to the display means 16 by a transmission member 20 adapted to transmit a displacement of the pressure sensor to a conversion member 12 kinematically connected to said display means 16.
    Timepieces type depthimeters are known to those skilled in the art and there are several possible solutions, both to achieve the pressure sensor, as to achieve the conversion member 12, without the need to to describe them in detail. In general, the conversion member 12 may comprise a set of levers and links for amplifying the displacement of the membrane and transmitting it to a display mobile or to a cam, controlling the movement of the mobile indicator kinematically. , more desmodromically.
    Nevertheless, it will be mentioned that in the embodiment of FIGS. 2 and 3, the membrane 10 of the pressure sensor is deformable under the effect of a pressure variation. The membrane 10 is thus shaped so as to be deformable, elastically, as a function of the pressure difference between the two faces of the membrane 10. The membrane 10 thus delimits, on one side, an internal chamber housing the movement 14 , whose pressure is fixed and corresponds to the pressure during the insertion. On the other side, the membrane 10 is exposed to the surrounding pressure of the timepiece, including in an underwater environment. It is thus understood that the internal chamber must be airtight relative to the outside environment, in order to be able to obtain pressure differences between the outside chamber.
    In the proposed example, the membrane 10 is mounted on a ring 22, sealingly assembled on the watch case 18, the bottom side. The membrane 10 may in particular be made of metal glass.
    In FIG. 4 is proposed another configuration of membrane 10, in which it is rigid, but movable under the effect of a pressure variation. The membrane 10 is mounted movable in translation relative to a ring 22 by means of which it is assembled on the box. At the interface between the membrane 10 and the ring 22, an elastic ring 24 and sealed allows the membrane 10 to move with reference to the ring 22, in response to an external pressure variation.
    According to the invention, the transmission member 20 comprises a first portion 200 secured in displacement of said pressure sensor and a second portion 202 movable with reference to said first portion 200 and adapted to cooperate with the conversion member 12 The second part is thus interposed between the first part and the conversion member, which eliminates any adjustment means which is outside the kinematic chain between the membrane 10 and the display means 16.
    More particularly, the first portion 200 of the transmission member 20 comprises a tubular chimney provided with an internal thread 200a, sealingly assembled on the pressure sensor. This first part 200 can be fixed on the membrane 10 by any means available to those skilled in the art, in particular by welding, gluing, driving, wrapping, brazing ... possibly by implementing a washer 21 interposed between the membrane 10 and the chimney according to the chosen method of fixation. Moreover, the first part 200 and the membrane 10 may be integral and thus monobloc.
    The chimney comprises a flange 200b arranged to bear on the side of the outer face of the membrane 10. The chimney passes through the membrane 10 and the tapping 200a is essentially located in the inner chamber defined by the membrane 10.
    Inside the chimney, the tapping 200a may be extended by a smooth portion 200c, greater in diameter than the tapping 200a, whose role will appear later.
    The second portion 202 of the transmission member 20 comprises a needle 202a, provided with a thread, screwed into the internal thread 200a. More particularly, the needle 202a is arranged to cooperate by its end located in the internal chamber, with the conversion member 12. At its other end, the needle 202a comprises an actuator structure 202b, allowing it to be pivoted by reference tapping. The actuator structure 202b may take the form of a slot to be actuated by a flat screwdriver.
    The needle 202a may also include, at the level of the smooth portion 200c, a cylindrical portion arranged to receive a seal 202c and to slide in a sealed manner inside the smooth portion 200c, like a piston in a motor cylinder. In the example, the cylindrical portion has a peripheral groove 202d, in which is housed the seal 202c. Thus, the smooth portion 200c and the cylindrical portion of the needle 202a make it possible to guarantee the seal at the mobile part of the transmission member 20, while helping to guide the second portion 202 of the transmission member 20 .
    Preferably, the transmission member 20 is mounted in the middle of the pressure sensor, so that the displacement of the membrane 10 is captured uniformly and representative manner.
    Advantageously, the second portion 202 of the transmission member 20 is accessible from the outside of the movement 14, for example by using a tool adapted to pivot the second portion 202 of the transmission member 20 and cause his movement. Thus, it is possible for a watchmaker to modify the reference position of the conversion member 12, and thus to adjust the reference position of the display means 16, while the movement 14 remains nested and without having to adjust the position of it in the watch case 18.
    The variant of FIG. 5 differs from that of FIGS. 3 and 4 in that the first part 200 carries a thread, and the needle 202a has an internal thread 200a which cooperates with this thread. The needle 202a is thus screwed onto the first part 200 as in the other variant and the relative axial position of these two elements can be varied in the same way.
    In an embodiment not shown, the skilled person could arrange an actuator accessible from outside said timepiece, such as a crown mounted movably with reference to the watch case. This actuator can be kinematically connected to the second portion 202 of the transmission member 20, to allow a user to adjust himself the display means 16, for example to perform a dive in a mountain lake located at altitude . It could thus extend the second portion 202 of the transmission member 20 and mount a pinion integrally therewith. The pinion can obviously be in kinematic connection with the crown. It is possible to provide a set of stops as well as a clutch in the driveline to avoid stresses when the second part 202 has reached the ends of its stroke.
    The skilled person can adapt the teaching of the present application to other types of sensors, for example an aneroid capsule, by providing for interposing a transmission member 20 in several parts, as described below. above, between the capsule and the generally used links.
    权利要求:
    Claims (11)
    [1]
    Without departing from the scope of the invention, the skilled person may also provide any other means of adjustment that a thread, adapted to be integrated with the transmission member 20, to ensure a precision adjustment . Although the invention has been particularly shown and described with reference to particular embodiments, other variants and constructions are possible without departing from the scope of the invention as defined in the claims. claims
    1. Timepiece comprising a watch case (18) and a clockwork movement (14) disposed inside the watch case (18), said piece further comprising a pressure sensor arranged to provide a displacement in response to a variation of pressure and to drive display means (16) comprising a moving indicator opposite a graduated scale for displaying on said scale the surrounding pressure of the timepiece, said pressure sensor being kinematically connected to the display means (16) by a transmission member (20) adapted to transmit said displacement of the pressure sensor to a conversion member (12) kinematically connected to said display means (16), characterized in that that the transmission member (20) comprises a first portion (200) integral in displacement of said pressure sensor and a second portion (202) mounted on said first portion (200), said e second part (202) being movable with reference to the latter and adapted to cooperate with the conversion member (12).
    [2]
    2. Timepiece according to claim 1, characterized in that said pressure sensor is a membrane (10) deformable under the effect of a pressure variation.
    [3]
    3. Timepiece according to claim 1, characterized in that said pressure sensor comprises a membrane (10) movable under the effect of a pressure variation.
    [4]
    4. Timepiece according to claim 1, characterized in that said pressure sensor is an aneroid capsule.
    [5]
    5. Timepiece according to one of the preceding claims, characterized in that the transmission member (20) is mounted in the middle of the pressure sensor.
    [6]
    6. Timepiece according to one of the preceding claims, characterized in that the first portion (200) of the transmission member (20) comprises a tubular chimney arranged in a sealed manner on the pressure sensor, and in that the second portion (202) comprises a needle (202a) screwed into or on said first portion.
    [7]
    7. Timepiece according to claim 6, characterized in that it comprises sealing means interposed between said needle (202a) and said chimney.
    [8]
    8. Timepiece according to one of the preceding claims, characterized in that said second portion (202) of the transmission member (20) is accessible from outside the movement (14).
    [9]
    9. Timepiece according to one of claims 1 to 7, characterized in that said first portion (200) of the transmission member (20) is connected to an actuator accessible from outside said room. watchmaking.
    [10]
    10. Timepiece according to one of the preceding claims, characterized in that said pressure sensor (10) is at least partially made of metal glass.
    [11]
    11. Timepiece according to one of the preceding claims, characterized in that said second portion (202) is integral with said pressure sensor (10).
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    同族专利:
    公开号 | 公开日
    EP3306420A1|2018-04-11|
    CH712967B1|2021-10-15|
    EP3306420B1|2020-09-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3124004A|1964-03-10|Watch incorporating a barometer |
    DE68038C|H. BECK in Hamburg, Neuestr. 1 II, und F. LESENBERG in Hamburg—Eimsbüttel, Wiesenstrafse 46|Pocket watch with barometer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH12892016|2016-09-29|
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