• 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 an astronomical display device (1) for a timepiece, comprising: - a celestial vault disc (3) provided with a curve (5) representing the horizon; - a map disc (7) carrying a sky map (9) illustrating a plurality of celestial objects, said map disc (7) being coaxial with said celestial disc disc (3), in which one of said disc of celestial vault (3) and said card disc (7) is mounted movable in rotation relative to the other and is intended to be driven in rotation by a clockwork movement (18) at a relative angular speed of substantially one revolution per sidereal day; characterized in that said display device (1) further comprises a first (11) and a second (13) indicator members mounted coaxially and movable in rotation, one of said indicator members (11) carrying a scale (15) defining time divisions, the other of said indicator members (13) carrying an index (17) cooperating with said scale (15), said indicator members (11, 13) being angularly movable and arranged so as to: - indicate an object celestial of interest by means of a first of said indicator organs (11); and - indicating a position of interest on said celestial vault disc (3) by means of a second of said indicator members (13), said position being intended to be reached by said celestial object of interest at a future time, the duration until said future moment being indicated on said scale (15) by means of said index (17).
    公开号:CH715167A1
    申请号:CH00866/18
    申请日:2018-07-12
    公开日:2020-01-15
    发明作者:Bouquin Jean-Marie
    申请人:Richemont Int Sa；
    IPC主号:
    专利说明:

    Description
    Technical Field [0001] The present invention relates to the field of watchmaking. More particularly, it relates to an astronomical display device for a timepiece.
    State of the art The document CH 710 770 describes a display device of the kind mentioned above. This device comprises a first, fixed disc, which carries a sky map. A second, rotating disc is provided with a representation of the horizon at a predetermined place on earth, in the form of an ellipse drawn on said disc. The second disc rotates behind the first at an angular speed of one sidereal revolution per day under the control of a watch movement. When the second disc is correctly adjusted, the portion of the map, which is inside the ellipse, corresponds to the area of the sky that is visible at a given moment. Thus, celestial objects and other constellations which are represented on the sky map and which are located inside the ellipse, are visible as long as it is night and the sky is clear.
    Other similar constructions are also known, and as such we can cite a particularly common construction in which the first disc is rotatably mounted below the other, an ellipsoidal opening provided in the latter delimiting the extent visible sky.
    Document EP 1 498 790 describes an electronic watch which combines the general principle mentioned above with an electronic module which makes it possible to indicate the position on the map of a predetermined celestial object. The user selects any object by means of a rotating ring, and the electronic module controls a pair of hands having particular shapes in order to indicate the object desired by the intersection of the hands.
    However, these arrangements do not allow the user to be informed when a celestial object is going to reach a predetermined position in the sky. For example, if the object is outside the ellipse representing the horizon, it is invisible to the user, who therefore has no indication of when the object will become visible above the 'horizon. Similarly, it could also be useful for a user to know when a star will reach its peak or go to bed.
    This information can be of interest to astronomers or astronomy enthusiasts, as well as to people wishing to perform horoscopic analyzes and the like.
    The object of the invention is therefore to provide a display device in which the above-mentioned faults are at least partially overcome.
    Disclosure of the Invention More specifically, the invention relates to an astronomical display device for a timepiece, as defined by the independent claim.
    This device comprises a celestial vault disc provided with a curve representing the horizon as well as a map disc carrying a sky map illustrating a plurality of celestial objects, such as stars, constellations, signs of the zodiac or the like. These two discs are coaxial with respect to each other, and one of them is mounted so as to be able to rotate relative to the other by a clockwork movement at a relative rotation speed of substantially one revolution per day. sidereal, which has a duration of around 23h 56m 4s.
    According to the invention, said display device further comprises first and second indicator members mounted coaxially and movable in rotation about their axes of rotation. One of these indicator bodies carries a scale indicating time divisions, and the other carries an index cooperating with said scale.
    Said indicator members are angularly movable by the user, for example, either by a correction mechanism, or by a split-seconds chronograph device in order to be able to:
    - indicate a celestial object of interest by means of a first of said indicator organs, by angularly moving it so that the indicator organ overlaps or points to the representation of the object of interest on the map; and
    - indicate a position of interest on said celestial vault disc by means of a second of said indicator members, this position being intended to be reached by said celestial object of interest at a future time, such as for example the position where the he celestial object will cross the curve of the horizon or the south direction if we are interested in the apogee of the celestial object.
    In doing so, the time interval before said future moment arrives, is indicated on said scale by the index, when said indicator members indicate said celestial object of interest and said position of interest as mentioned above. .
    This measurement can thus be carried out by entirely mechanical means, without requiring an electronic control system.
    Other advantageous construction details are proposed in the dependent claims.
    Brief description of the drawings [0015] Other details of the invention will appear more clearly on reading the following description, made with reference to the accompanying drawings in which:
    Fig. 1 is a semi-exploded schematic view of a display device according to the invention;
    Fig. 2 to 6 illustrate the measurement principle used by the display device according to the invention; and
    Fig. 7a-c and 8 schematically illustrate variants of systems allowing the training of the indicator members of the display device according to the invention.
    Method of carrying out the invention Lafig. 1 shows an astronomical display device 1 according to the invention in semi-exploded form.
    Like the device described in the aforementioned document CH 710770, the display device 1 is intended to be mounted in a watch case (not shown) further housing a mechanical or electrical watch movement 18. The device display 1 includes a sky vault disc 3 carrying a representation of the horizon 5, taking the form of an oval or an ellipse, as well as ad hoc indications of the cardinal points and / or of the 24 hours of the day. The horizon 5 can be represented by a curve drawn on the disc 3, a contrast between different materials and / or between different colors, an opening, a groove made in the dial 3 or by any other means serving to delimit the area visible from the sky.
    A card disc 7, provided with a card 9 is superimposed on the sky disc disc 3. The card disc 7 is therefore located closer to the user than the disc disc 3 and is at least partially transparent so that the user can also see the arch disc 3 which is located below. Card 9 has markings illustrating predetermined celestial objects such as stars, constellations, etc. We therefore recall that, with adequate adjustment, the celestial objects represented on the map disc and which are located inside the oval or the ellipse representing the horizon 5, are positioned in the visible part of the sky , for a user. He can therefore observe them if it is dark and the sky is clear.
    In a construction variant, the card disc 7 can alternatively be arranged below the sky vault disc 3. In such a case, the latter must of course be at least partially transparent so that the user can see card 9, but in this case the card disk 7 may possibly be opaque.
    The sky vault disc 3 is pivotally mounted relative to the card disc 7, at the rate of one sidereal revolution per day (that is to say substantially 23 h 56 m 4 s) counterclockwise under the control of any watch movement 18 (which may be, for example, mechanical or electrical as generally known). In the illustrated variant, the card disc 9 is fixed relative to the watch case (not shown) and the sky disc 3 is arranged to pivot under the control of said watch movement 18, in particular under the effect of its motor member (barrel, electric motor or the like). To this end, the sky disc 3 is supported at its periphery and has a peripheral toothing 4 intended to be driven by a pinion 6 in the manner of a display member of a mysterious watch. Alternatively, this disc 3 can be pivoted by its center on a barrel or on an axis in the usual way.
    Alternatively, the sky disc 3 can be mounted fixed and the card disc 7 can rotate clockwise, or the two discs 3, 7 can be rotated, but with a relative phase shift such that l '' one performs substantially one sidereal revolution per day compared to the other.
    The illustrated arrangement is suitable for the northern hemisphere at a predetermined latitude; for the southern hemisphere, map 9 and the direction of rotation of the movable disc must be adapted accordingly.
    The device 1 also includes a first indicator member 11 and a second indicator member 13, pivotally mounted about their respective axis of rotation. These members 11, 13 are coaxial with the arch disc 3 and can be located between the dial 3 and the disc 7, superimposed on each of these two elements or below the arch disc 3 in the case where the latter is transparent. In the illustrated embodiment, these indicator members 11, 13 are located between the two discs 3, 7 and are formed by straight needles mounted in a conventional manner on a shaft or a barrel. However, they can also consist of transparent disks each carrying a line or another ad hoc marking. In the latter case, the discs can be pivoted by their center or by their periphery as mentioned above in the context of the celestial disc disc 3. Furthermore, other forms of needles are also possible.
    One of the indicator members, here the second 13, carries a scale 15 graduated in hours, and the other, here the first 11, carries an index 17 arranged to indicate a value on the scale 15. The scale may bear figures, patterns or the like which are intended to indicate the number of hours before a celestial object reaches a position of interest, as will be clearly understood later. In the illustrated embodiment, the scale 15 has the numbers 1 to 6 extending over an angle of 90 °, but longer or shorter scales are also possible, each hour of the scale extending over a angle of substantially 15 ° (1/24 of a revolution) since the vault disc of the celestial 3 rotates at the rate of one revolution per approximately 24 hours. It goes without saying that the positions of the index 17 and the scale can be reversed, the first indicator member 11 thus carrying the scale and the second 13 carrying the index.
    The indicator members 11, 13 can be driven by manual control members by means of any correction mechanism 19, 20 or by the watch movement 18, if the latter includes a split-seconds chronograph mechanism 20, as will be described later.
    Figures 2 to 6 illustrate the principle of the invention allowing the determination of the time interval before a celestial object, which is currently invisible, becomes visible on the horizon. The position on the horizon, where the object will rise, being, according to the example, the position of interest. To do this, we assume that:
    • it's night;
    • the sky is clear; and • the celestial vault disc is substantially correctly set for sidereal time at the user's location.
    [0027] FIG. 2 illustrates the starting point for the determination. In this state, the two indicator members 11, 13 are superimposed and oriented in the direction of 12 o'clock of the watch (not shown). It is clear from this figure that, in the illustrated embodiment, the indicator members 11,13 are long enough to be able to overlap each celestial object on the map 9. However, shorter indicator members 11 are possible, in which if so, they can simply point to, rather than overlap, each celestial object to indicate it. In such a case, the extension of the short organ intersects the desired object.
    The example is based on the assumption that the user wishes to observe the star surrounded by the black circle, which is outside the ellipse of horizon 5 and is therefore currently invisible.
    The two indicator members 11,13 are driven clockwise to the point where they intersect the desired star (see fig. 3). This intersection, or even overlap, indicates the celestial object of interest.
    Then, the first indicator member 11 is stopped, and we continue to advance the second indicator member 13 clockwise (see Fig. 4).
    When the second indicator member 13 (or its extension, if it is relatively short) intersects the ellipse 5, where the desired star will cross it (represented by the symbol "n"), which is at the same radius as the star of interest (considered from the axis of rotation of the members 11, 13), the second indicator member 13 is stopped. The second indicating member 13 then indicates the point, where the object of interest will be at a future time. In order to facilitate the determination of the correct radius, the indicator members 13 may be provided with ad hoc markings and / or the card 9 may include circles defined by several radii from said axis of rotation.
    Then, the user can read on the scale 15 the number of hours before the designated star crosses the horizon (rising of the star), which will occur in about three hours in the example illustrated .
    The same measurement principle can also be applied to measure other time intervals related to celestial objects, as illustrated in fig. 6.
    In this example, the star surrounded by an "O" is the celestial object of interest. This celestial body being inside the ellipse of the horizon, it is already visible. The user can thus stop the first indication member 11 when the latter intersects this star in order to indicate it.
    If the user wishes to know when this star will reach its peak (the latter therefore being the "position of interest" in the context of the invention), it stops the second indicator member 13 on a line joining the axis of rotation of the indicator members 11, 13 and the “south” direction marked on the periphery of the celestial disc disc 3. This line has been drawn in dashed / dotted lines in FIG. 6. He can thus read the time interval before the apogee of the star in question on the scale 15.
    On the other hand, if he wishes to know when the celestial object sets, he will stop the second indicator member 13 when he intersects the ellipse of the horizon at the location on the curve where the object is going to lie down, that is to say at the same radius as that where the star in question is located. This point was illustrated by the symbol "n". Again, he can thus read the time interval before this deadline on the scale 15.
    If one wishes to determine time intervals greater than six hours, the scale 15 can be extended. For example, by extending the scale 15 on a 180 ° arc, time periods of up to twelve hours can be calculated.
    Furthermore, it goes without saying that the directions of rotation etc. above can be reversed, the arrangement of the ladder being adapted accordingly. It is also noted that the indicator members 11, 13 can be driven independently of one another.
    With regard to the drive of the indicator members 11, 13, several possibilities can be envisaged.
    Figs. 7a-7c illustrate several systems based on correction devices which make the kinematic link between one or more control members 19, 20 and the indicator members 11, 13.
    [0041] FIG. 7a schematically illustrates a single control member 19 (such as a crown, a rotating bezel or the like) in kinematic connection with the indicator members 11,13, which allows the user to rotate said members 11,13. The kinematic connection between the control member 19 and the members 11, 13 is illustrated diagrammatically by the dashed line.
    In this case, the control member 19 could for example have several axial positions, each axial position making a kinematic connection with a respective indicator member 11,13. Similarly, the control member 19 can be arranged to drive the two members 11, 13 in superposition in a first direction of rotation (for example clockwise), and then only one of these members (in particular the second 13 ) in the opposite direction when the control member 19 is manipulated in the other direction or in any direction if the control member 19 is placed in a different axial position. Mechanisms for carrying out these workouts are notably known in the context of setting the time display devices, among others.
    [0043] FIG. 7b illustrates a variant in which a first control member 19, in the form of a crown, rotating bezel or the like, is arranged to pivot one or the other of the indicator members 11, 13 as a function of the state of a second control member 20, which can for example be a pusher. If the second control member 20 is released, the first control member 19 can cause for example the first indicator member 11 (or all of the indicator members 11, 13 in synchronism), the first indicator member 11 being blocked and the second indicator member 13 being driven when the second control member 20 is actuated.
    FIG. 7c illustrates another variant in which each indicator member 11, 13 is in kinematic connection with a respective control member 19, 20.
    [0045] FIG. 8 schematically illustrates yet another variant, in which the indicator members 11, 13 are driven by means of a split-seconds chronograph mechanism 21 which comprises the movement 18. By pressing on the first control member 19, the indicator members 11.13 are driven in superposition. When the latter indicate the desired celestial object as discussed above, the user presses the second control member 20, which activates a brake to stop the movements of the first indicator member 11. The second indicator member 13 then continues its course, and when it is in the correct angular position for the determination to be made (see above), the user presses the first control member 19 again to stop the second indicator member 13. The user can thus reading the time interval sought on the scale 15. By pressing a reset control member 22, the indicator members can be returned to their starting position.
    It goes without saying that other arrangements of control members 19, 20, 22 are known in the field of split-seconds chronographs, these arrangements comprising one, two or three control members arranged to perform sequences of ad hoc operations.
    Although the invention has been described above in connection with specific embodiments, additional variants are also possible without departing from the scope of the invention as defined by the claims.
    权利要求:
    Claims (8)
    [1]
    claims
    1. Astronomical display device (1) for a timepiece, comprising:
    - a celestial vault disc (3) provided with a curve (5) representing the horizon;
    - a map disc (7) carrying a sky map (9) illustrating a plurality of celestial objects, said map disc (7) being coaxial with said celestial disc disc (3), in which one of said disc of celestial vault (3) and said card disc (7) is mounted movable in rotation relative to the other and is intended to be driven in rotation by a clockwork movement (18) at a relative angular speed of substantially one revolution per sidereal day;
    characterized in that said display device (1) further comprises a first (11) and a second (13) indicator members mounted coaxially and movable in rotation, one of said indicator members (11) carrying a scale (15) defining time divisions, the other of said indicator members (13) carrying an index (17) cooperating with said scale (15), said indicator members (11, 13) being angularly displaceable and arranged so as to:
    - indicate a celestial object of interest by means of a first of said indicator organs (11); and
    - indicate a position of interest on said celestial vault disc (3) by means of a second of said indicator members (13), said position being intended to be reached by said celestial object of interest at a future time, the duration until said future time being indicated on said scale (17) by means of said index (17).
    [2]
    2. Display device (1) according to the preceding claim, in which said indicator members (11, 13) are arranged to be driven manually by means of at least one control member (19, 20) in kinematic connection. with said indicator members (19, 20).
    [3]
    3. Display device (1) according to the preceding claim, wherein said kinematic connection comprises a correction device.
    [4]
    4. Display device (1) according to claim 1, in which said indicator members (11, 13) are arranged to be driven by means of a split-seconds chronograph device (21), one of said members. control (11) can be stopped independently of the other (13).
    [5]
    5. Display device (1) according to one of the preceding claims, in which said card disc (7) is fixed, said celestial disc disc (3) being arranged to be rotated relative to said card disc. (7).
    [6]
    6. Display device (1) according to claim 5, in which said celestial vault disc (3) has a toothing (4) at its periphery, this toothing (4) being arranged to be driven by said clock movement (18). ).
    [7]
    7. Display device (1) according to one of the preceding claims, in which said position of interest is chosen from:
    - the point on the horizon where said celestial object of interest is intended to appear when it rises;
    - the apogee of said celestial object of interest; and
    - the point on the horizon where said celestial object of interest will disappear when it goes to bed.
    [8]
    8. Timepiece (1) comprising a display device according to one of the preceding claims as well as a clockwork movement arranged to rotate said card disc or said celestial disc.


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    同族专利:
    公开号 | 公开日
    CH715167B1|2021-12-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0220048A2|1985-10-15|1987-04-29|Citizen Watch Co. Ltd.|Timepiece having a star display|
    EP1498790A1|2003-07-14|2005-01-19|Asulab S.A.|Astronomical watch|
    EP1962154A2|2007-02-21|2008-08-27|Richemont International S.A.|Display mechanism for astronomical data in a timepiece|
    CH710770A2|2015-02-23|2016-08-31|Richemont Int Sa|Timepiece for astronomical viewing.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00866/18A|CH715167B1|2018-07-12|2018-07-12|Astronomical display device.|CH00866/18A| CH715167B1|2018-07-12|2018-07-12|Astronomical display device.|
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