EP3731028A1 - Anzeigevorrichtung der somerzeit sowie der uhrzeit des sonnenaufgangs und/oder des sonnenuntergangs - Google Patents

Anzeigevorrichtung der somerzeit sowie der uhrzeit des sonnenaufgangs und/oder des sonnenuntergangs Download PDF

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Publication number
EP3731028A1
EP3731028A1 EP19170933.6A EP19170933A EP3731028A1 EP 3731028 A1 EP3731028 A1 EP 3731028A1 EP 19170933 A EP19170933 A EP 19170933A EP 3731028 A1 EP3731028 A1 EP 3731028A1
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EP
European Patent Office
Prior art keywords
time
summer
winter
index
sunset
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.)
Granted
Application number
EP19170933.6A
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English (en)
French (fr)
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EP3731028B1 (de
Inventor
Marc Lemonnier
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Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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Filing date
Publication date
Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP19170933.6A priority Critical patent/EP3731028B1/de
Publication of EP3731028A1 publication Critical patent/EP3731028A1/de
Application granted granted Critical
Publication of EP3731028B1 publication Critical patent/EP3731028B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/262—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for astrological informations
    • 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
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values

Definitions

  • the present invention relates to a device for displaying the legal time as well as the time of sunrise and / or the time of sunset, comprising a first index of the legal time arranged to indicate the time of daylight saving time.
  • legal time a device for displaying the time of sunrise and / or sunset, a second index arranged to indicate the time of sunrise and / or a third index arranged to indicate the time of sunset. sun on the display unit for the sunrise and / or sunset time.
  • the present invention also relates to a timepiece comprising such a display device.
  • Such a type of display device is used in a timepiece to traditionally display the legal time on a 12 hour main dial by means of an hour hand as well as the rising and setting times of the day. sun on two dials or angular sectors graduated by means of two respective hands or indexes. These dials or angular sectors used to read the times of sunrise and sunset are generally distributed over the main dial with other displays, each hand or index having its own axis of rotation. These dials or additional angular sectors have the drawback of weighing down and loading the main dial with information, making it difficult to read the time. They can be positioned on the back of the timepiece to free up space on the main dial. But because of this, they will not be visible to the user when the latter is wearing the timepiece on the wrist.
  • the request CH 712 493 provides a mechanism for modifying time information related to an astronomical phenomenon, such as the time of sunrise or sunset, as a function of summer time and winter time and / or a longitude or a time zone.
  • Said mechanism comprises a bistable control actuated manually and arranged to act only on an indicator of the time of sunrise or sunset, managed moreover by a wheel controlled by astronomical calculation mechanisms, causing a displacement of a time of said indicator of the hour of sunrise or sunset during the summer / winter time change, as well as on a control indicator showing the two stable summer / winter positions of said control.
  • This document does not give any information on the correction of the daylight saving time at the time of the summer / winter time change when the bistable control is used.
  • the present invention aims to remedy the drawbacks of the known mechanisms by proposing a device for displaying the legal time as well as the time of sunrise and / or the time of sunset, allowing simple adjustment and rapid legal time as well as the time of sunrise and / or sunset during summer / winter time changes.
  • the present invention relates to a device for displaying the legal time as well as the time of sunrise and / or the time of sunset, comprising a first index of the legal time arranged to indicate the legal time, a device for displaying the time of sunrise and / or sunset, a second index arranged to indicate the time of sunrise and / or a third index arranged to indicate the sunset time on said display member of the sunrise and / or sunset time.
  • said display device comprises a mechanism for managing the daylight saving time as well as the time of sunrise and / or the time of sunset during the summer / winter time change.
  • a summer / winter selector arranged to move between two positions, a summer time position when summer time is to be displayed and a winter time position when winter time is to be displayed, and to allow a simultaneous display in summer time, respectively in winter time, of the standard time by means of the first index of the standard time as well as of the time of rising by means of the second index and / or sunset by means of the third index when it goes to its summer time position, respectively to its winter time position.
  • the summer / winter selector is arranged to simultaneously move the display member of the time of sunrise and / or sunset and the first index of the legal time of a movement corresponding to display a time of daylight saving time. more when switching to summer time position and one hour less when switching to winter time position.
  • the display device allows a user to synchronously correct the legal time as well as the time of sunrise and / or sunset at the time of summer / winter time changes, at by means of one and the same action.
  • the correction of the daylight saving time as well as the time of sunrise and / or sunset at the time of summer / winter time changes is therefore simple and fast.
  • the present invention relates to a display device 1 of a timepiece making it possible to display the legal time on a legal time display member 2, such as a dial, by means of a first index of legal time 4, such as a hand.
  • the minutes are traditionally displayed on the legal time display member 2 by means of a minute index 6, such as a hand.
  • the indexes 4 and 6 are driven by the movement of the timepiece in a manner known per se, in order to display the legal time for example at 12 o'clock.
  • the first index of the legal time 4 is carried by an hour wheel 5, which may for example be a time zone hour wheel. It is also possible to provide a mechanism for driving the indexes 4 and 6 suitable for displaying the legal time over 24 hours.
  • the display device 1 also comprises a member for displaying the time of sunrise and / or sunset 8, a second index 10, such as a hand for displaying the time of sunrise on the screen. display member 8 and a third index 12, such as a hand for displaying the sunset time.
  • the display unit for the sunrise and / or sunset time 8, the second and third indexes 10 and 12 are positioned on the same side as the first index for legal time 4.
  • the second and third index 10 and 12 as well as the first index of legal time 4 are preferably concentric, their respective axes of rotation being coincident.
  • the display device for the legal time 2 and the display device for the sunrise and / or sunset time 8 are preferably concentric.
  • the display unit for the sunrise and / or sunset time 8 consists of a 31-day date disc, as in the variant shown here.
  • the date disc 8 is advantageously used to indicate both the times of sunrise and sunset by means of the second and third indexes 10 and 12 as well as the days by means of a fourth date index 14, concentric. at the second and third index 10 and 12 as well as at the first index of legal time 4.
  • Said fourth date index 14 is arranged to indicate the date on the date disc 8 by means of a date mechanism comprising so classic in particular a date driving wheel 16 driven by the hours wheel 5 of one revolution per 24 hours and a date wheel or star 18 to 31 teeth carrying the fourth date index 14, held by its date jumper 20 and the spring associated date jumper 21, and driven in rotation by a date finger 22 integral with the date driving wheel 16, one step per day, during the date change.
  • a date mechanism is known to those skilled in the art and does not require a further description here.
  • the sunrise and sunset times on the date disc 8 it is possible to provide on said date disc 8 two graduated sectors 24, 25, bearing an additional graduation specific to the sunrise and sunset times. sun and delimited by the minimum and maximum hours of sunrise and sunset using the figures corresponding to dates of the same value.
  • the sunrise hours sector 24 between 4h and 10h can be indicated by graduations added on the date disc 8 between dates 4 and 10.
  • the sunset hours sector 25 between 16h and 22h can be indicated by graduations added on the date disc 8 between the dates 16 and 22.
  • only one of the second and third indexes 10, 12 can be implemented if it is desired to display only the times of sunrise or the times of sunset.
  • the display unit for the time of sunrise and / or sunset 8 may be a time disk, that is to say based on hours, displaying 24 hours if the two indexes 10 and 12 are used, and possibly 12h if only one of the indexes 10 and 12 is used.
  • This time disc 8 is different from the display unit for legal time 2. Only two graduated angular sectors can be represented on the time disc 8 in order to display only the necessary hours corresponding to the hours of getting up and / or of sunset.
  • the second and third index 10 and 12 are driven by a drive mechanism managing the times of sunrise and sunset on an annual basis by means of cams having a shape so as to describe the variations in the times of sunrise and sunset. sun during the year.
  • a drive mechanism managing the times of sunrise and sunset in a timepiece, such as a wristwatch are known to those skilled in the art and do not require further description here.
  • Such a mechanism for managing the times of sunrise and sunset is described for example in the request EP 18152022 of the plaintiff.
  • This mechanism comprises a sunrise hours feeler carrying a toothing forming a rack which meshes with a wheel carrying a hand indicating the sunrise hours corresponding to the second index 10 and a sunset time sensor carrying a toothing forming a rack which meshes with a wheel carrying a hand indicating the hours of sunset corresponding to the third index 12.
  • the probes are movable in translation and held in support respectively against a cam of the hours of sunrise and against a cam of the hours of sunset by a flexible guiding system.
  • the mechanism managing the sunrise and sunset times driving the second and third indexes 10 and 12 is designed so that the second and / or third index 10 and 12 rotate 11.6 ° per hour (i.e. 360/31) with respect to the date disc instead of 15 ° per hour (360 / 24) if the display unit for the sunrise and / or sunset time is a 24-hour time disc.
  • the profile of the sunrise time cam so that the difference between the maximum radius and the minimum radius of the sunrise time cam corresponds to the length of the displacement rectilinear of the sunrise hours probe calculated as a function of the angle traversed by the second index 10 between the minimum sunrise time and the maximum sunrise time referred to a 31-hour display over 360 ° .
  • the profile of the sunset time cam is set so that the difference between the maximum radius and the minimum radius of the sunset time cam corresponds to the length of the rectilinear movement of the sunset time probe. sunset calculated according to the angle traveled by the third index 12 between the minimum sunset time and the maximum sunset time referred to a 31-hour 360 ° display.
  • the display member of the time of sunrise and / or sunset 8 is arranged to be movable in rotation on the frame relative to the second index 10 and / or the third index 12 in the clockwise direction. and counterclockwise.
  • the display member of the time of sunrise and / or sunset 8 is preferably in the form of a ring, the axis of rotation coincides with the axes of rotation of the indexes 4, 6 , 10, 12, 14, and mounted to pivot on the frame by means of rollers (not shown) or any other date indicator rotation system known to those skilled in the art.
  • the display unit for the sunrise and / or sunset time 8 is fixed, the second and third indexes 10 and 12 moving in front the sunrise and / or sunset time display member 8 for displaying the sunrise and sunset times respectively.
  • the sunrise and / or sunset time display member 8 is rotated relative to the second and third indexes 10 and 12 only at the time of the summer / winter time change as will be described below. -after.
  • the display device 1 comprises a mechanism for managing the legal time as well as the time of sunrise and / or the time of sunset during the summer / winter time change comprising a selector summer / winter 26 arranged to move between two stable positions, namely a summer time position when summer time is to be displayed and a winter time position when winter time is to be displayed, and for allow simultaneous display in summer time, respectively in winter time, of standard time by means of the first index of standard time 4 as well as of the time of rising by means of the second index 10 and / or sunset by means of the third index 12 during its passage to its summer time position, respectively to its winter time position.
  • a selector summer / winter 26 arranged to move between two stable positions, namely a summer time position when summer time is to be displayed and a winter time position when winter time is to be displayed, and for allow simultaneous display in summer time, respectively in winter time, of standard time by means of the first index of standard time 4 as well as of the time of rising by means of the second index 10 and / or sunset by means of the third
  • the summer / winter selector 26 is arranged to simultaneously move the display member of the sunrise and / or sunset time 8 and the first index of legal time 4 by a displacement. corresponding to display one hour more when it goes to summer time position and one hour less when it goes to winter time position.
  • the summer / winter selector 26 comprises a rocker 28 mounted to pivot on the frame at A and provided with a jumper 29.
  • Said rocker 28 is arranged to cooperate, by a first end 28a relative to A, with a mechanism control and with the display member of the time of sunrise and / or sunset 8, and to cooperate, by a second end 28b with respect to A, with a mechanism for correcting the daylight saving time and with a date correction mechanism, as will be described in more detail below.
  • the rocker 28 of the summer / winter selector 26 is integral in rotation with the display member of the sunrise and / or sunset time 8 by means of a pin 30 integral with said display member 8 and on which the first end 28a of rocker 28 is hingedly mounted.
  • the display unit for the sunrise and / or sunset time 8 also comprises two circular loops 32 concentric with the indexes 4, 10, 12, 14 and in each of which can circulate a pin 34 integral with the frame to guide the rotation of the display member 8.
  • the ends of the straps 32 constitute, for the pins 34, stops corresponding to the stable summer time and winter time positions.
  • the construction is provided so that, when the summer / winter selector 26 goes into the summer time position, the rocker 28, then in the position shown in the figure.
  • figure 2 rotates counterclockwise and rotates the display member of the sunrise and / or sunset time 8 counterclockwise, by an angle corresponding to display, by means of the second index 10 and / or of the third index 12, a time to get up and / or set more sun as shown in the figure 4 , and so that when the summer / winter selector switches to winter time position, the rocker 28 pivots clockwise, and rotates said display member of the time of rising and / or setting of sun 8 clockwise, at an angle corresponding to display one less sunrise and / or sunset time, as shown again in the figure 2 .
  • sun 8 clockwise and counterclockwise is 1/31 th of a turn corresponding to an hour. If the body display the time of sunrise and / or sunset 8 is a circular time display 24, to rotate in the clockwise and counterclockwise will turn 1/24, corresponding to an hour.
  • the second and third indexes 10 and 12 indicating the times of sunrise and / or sunset remain fixed and are not not moved.
  • the rocker 28 of the Summer / winter selector 26 has, at its second end 28b, a first toothed sector 36a arranged to cooperate with a legal time correcting finger 38 of the legal time correction mechanism.
  • Said legal time correcting finger 38 is capable of rotating the hour wheel 5 which carries the first legal time index 4 by an angle corresponding to advancing said first legal time index 4 by one. time when switching the summer / winter selector 26 to the summer time position and by an angle corresponding to moving said first daylight saving time index 4 back by one hour when switching the summer / winter selector to the daylight saving time position winter.
  • the legal time correcting finger 38 is mounted to pivot on the frame, being held by a spring 40.
  • the legal time correcting finger 38 comprises a toothed sector 38a meshing with the first toothed sector 36a of the rocker 28 as well as a nozzle 38b arranged to actuate the date driving wheel 16 during the summer / winter time change, said date driving wheel meshing with the hours wheel 5 bearing the first index of the legal time 4 for add or subtract one hour from legal time.
  • the date driving wheel 16 and its date finger 22 remain synchronized with the management of the date.
  • the beak 38b of the daylight saving time correcting finger 38 is not in contact with the date driving wheel 16.
  • the rocker 28 When the summer / winter selector is switched 26 in the summer time position, the rocker 28, then in the position shown on the figure 2 , rotates counterclockwise and rotates the legal time correcting finger 38 clockwise, its beak 38b causing the date driving wheel 16 to rotate one step counterclockwise as shown in figure figure 3 So as to rotate the hour wheel 5 and the first index of the standard time of 4 1/12 turn, corresponding to a time, in a clockwise direction to enter a time to standard time, such as show it figure 4 .
  • rocker 28 When switching from summer / winter selector 26 to winter time position, rocker 28, then in the position shown on figure 4 , rotates clockwise and rotates the legal time correcting finger 38 counterclockwise, its beak 38b rotating the date driving wheel 16 by one step clockwise as shown in figure figure 5 So as to rotate the hour wheel 5 and the first index of the standard time of 4 1/12 turn, corresponding to a time, counterclockwise to subtract one hour in standard time, such as show it again figure 2 .
  • a safety spring 42 for the date finger 22 allowing the release of the date finger 22 in the event that the time change is inadvertently made at midnight, at the time of the automatic date change.
  • the summer / winter selector 26 is arranged to move the fourth date index 14 during each change of date. summer / winter time and its changes to summer time and winter time positions in order to keep the indexing of said fourth index 14 with the date disc.
  • the rocker 28 of the summer / winter selector 26 has, at its second end 28b, a second toothed sector 36b arranged to cooperate with a date correcting finger 44 of the date correction mechanism.
  • the first toothed sector 36a and the second toothed sector 36b provided at the second end 28b of the lever 28 may be separate or constitute a single toothed sector, as shown in this example.
  • the date correcting finger 44 is able to drive in rotation the date wheel or star 18 which carries the fourth date index 14 by an angle corresponding to moving said fourth index 14 back by one day when the summer / winter selector passes. 26 in the summer time position and by an angle corresponding to moving the fourth index 14 forward by one day when the summer / winter selector switches to the winter time position.
  • the date correcting finger 44 is mounted to pivot on the frame and comprises a toothed sector 44a meshing with the second toothed sector 36b of the lever 28 as well as a beak 44b arranged to actuate the date wheel or star 18 during the summer / winter time change, to move the fourth date index 14 forward or back by one day.
  • the fourth date index 14 and the date disc 8 retain their indexing at the time of the summer / winter time change.
  • rocker 28 When switching from summer / winter selector 26 to winter time position, rocker 28, then in the position shown on figure 4 , rotates clockwise and drives the date corrector finger 44 in an anti-clockwise direction, its beak 44b causing the date wheel or star 18 to pivot clockwise by one step as shown in figure 5 So as to rotate the fourth index calendar 14 of 1/31 th turn corresponding to one day, clockwise to advance it for a day so as to synchronize the date on the new disk rotation date 8, which also corresponds to a day as described above, as shown again by figure 2 .
  • the summer / winter time change mechanism comprises a control mechanism for the summer / winter selector 26 arranged to change it between its summer time position and its winter time position.
  • the summer / winter selector control mechanism here comprises a bolt 46 that can be operated by a user and arranged to pivot between two stable positions and alternately move the summer / winter selector 26 from one of its summer time and winter time positions to the other, namely a summer time position in which said summer / winter selector 26 is in its summer time position and a winter time position in which said summer / winter selector 26 is in its winter time position.
  • the bolt 46 is pivotally mounted by one of its ends at B on the frame 52 of the movement. Towards its other end, the bolt 46 comprises a stud 48 arranged to abut against each of the walls of a notch 50 substantially V-shaped provided on the frame 52 of the movement, in order to constitute for the bolt 46 a stop corresponding to its position winter time, as shown in the figure 6 , and a stopper corresponding to its summer time position, as shown in the figure 8 .
  • the rocker 28 of the summer / winter selector 26 comprises at its first end 28a a notch 54 substantially U-shaped, each of the walls of the notch 54 corresponding to the branches of the U constituting for the stud 48 of the bolt 46 alternately a support wall for starting to rotate the rocker 28 until the stud 48 abuts against the frame 52 and a stop when the rocker 28 completes its tilting.
  • On the first end 28a of the rocker is mounted the pin 30 for moving the display member of the sunrise and / or sunset time 8 as described above.
  • the rocker 28 has at its second end 28b, on the other side of its pivot point A, the first and second toothed sectors 36a and 36b described above.
  • the jumper 29 of the rocker 28 of the summer / winter selector 26 comprises at its free end 29a two notches 58 separated by two inclined planes, said notches 58 corresponding to the two stable summer time and winter time positions of the summer / winter selector 26.
  • the rocker 28 comprises for this purpose in its central zone a positioning pin 60 arranged to engage in one of the two notches 58 of the jumper 29 by positioning the summer / winter selector 26 in the summer time stable position. or corresponding winter time.
  • the rocker 28 also includes in its central zone a loop 62 in which the pivoting mounted end of the bolt 46 can move when the lever 28 pivots.
  • the loop 62 advantageously makes it possible to have a visual on the position occupied by the bolt 46 and therefore by the summer / winter selector 26, the ends of the loop 62 being provided to correspond to the stable positions for summer time and winter time. the summer / winter selector 26 and the bolt 46.
  • the bolt 46 and the summer / winter selector 26 When changing from winter time to summer time, the bolt 46 and the summer / winter selector 26 then being in the winter time position in accordance with the figure 6 , the bolt 46 is pivoted in B by the user in the counterclockwise direction so that the stud 48 leaves the first wall of the V-shaped notch 50 of the frame 52 and presses on the wall of the U-shaped notch 54 of the rocker 28 with which it is in contact to rotate said rocker 28 at A in the counterclockwise direction.
  • the jumper 29 pushed by the pin 60 rises so that said pin 60 leaves its notch 58 and is positioned on the adjacent inclined planes of the jumper 29, as shown in FIG. figure 7 .
  • the bolt 46 is pivoted in B by the user in the clockwise direction so that the stud 48 leaves the second wall of the V-shaped notch 50 of the frame 52 and presses on the wall of the U-shaped notch 54 of the rocker 28 with which it is in contact in order to rotate said rocker 28 in A in the clockwise direction.
  • Jumper 29 pushed by pin 60 rises so that said pin 60 leaves its notch 58 and is positioned on the adjacent inclined planes of jumper 29, like the show it figure 9 .
  • the figures 10 and 11 represent the display device 1 according to the invention during the change from winter time to summer time.
  • the date indicated by the fourth date index 14 is 31 (i.e. March 31, 2019 day of the changeover to summer time in 2019)
  • the legal time indicated by the first index of the legal time 4 and by the minute index 6 is 2:00 a.m.
  • the sunrise time indicated by the second index 10 on the date disc 8 being 6:18
  • the sunset time indicated by the third index 12 on date disc 8 being 19:02.
  • the summer / winter selector control mechanism is actuated to move the summer / winter selector 26 from its winter time position to its normal time position.
  • the selector summer / winter 26 actuates the correction date finger 44 so that the calendar of star 18 is driven in rotation of 1/31 th turn counterclockwise so as to reverse the fourth index date 14 of a day, to remain indexed with the date.
  • the date indicated by the fourth date index 14 is therefore always 31.
  • the selector summer / winter 26 actuates the correction finger legal time 38 so that the hour wheel 5 and the first index of the standard time 4 are driven in rotation round 1/12 clockwise to add one hour to daylight saving time.
  • the legal time indicated by the first index of the legal time 4 and by the minute index 6 is now 3:00 am according to summer time.
  • the date indicated by the fourth date index 14 is 31 (i.e. March 31, 2019 day of the changeover to summer time in 2019)
  • the legal time indicated by the first index of the legal time 4 and the minute index 6 is 3:00 a.m.
  • the sunrise time indicated by the second index 10 on the date disc 8 being 7:18 a.m.
  • the sunset time indicated by the third index 12 on date disc 8 being 8:02 pm.
  • the figures 12 and 13 represent the display device 1 according to the invention during the change from summer time to winter time.
  • the date indicated by the fourth date index 14 is the 27 (i.e. October 27, 2019, day of the changeover to winter time in 2019)
  • the legal time indicated by the first index of the legal time 4 and by the minute index 6 is 3:00 a.m.
  • the sunrise time indicated by the second index 10 on the date disc 8 being 8:08
  • the sunset time indicated by the third index 12 on date disc 8 being 6:29 p.m.
  • the summer / winter selector control mechanism is actuated to move the summer / winter selector 26 from its summer time position to its daylight saving time position.
  • the date disc 8 driven by the summer / winter selector 26 rotates 1/31 th of a turn clockwise to subtract an hour at sunrise and sunset of the sun indicated respectively by the second and third index 10 and 12.
  • the sunrise time indicated by the second index 10 on the date disc 8 is now 7:08 a.m.
  • the sunset time indicated by the third index 12 on the date disc 8 is now 5:29 p.m. depending on the time winter.
  • the selector summer / winter 26 actuates the correction date finger 44 so that the calendar of star 18 is driven in rotation of 1/31 th turn clockwise so as to move the fourth index date 14 of a day, to remain indexed with the date disc.
  • the date indicated by the fourth date index 14 is therefore always 27.
  • the selector summer / winter 26 actuates the correction finger legal time 38 so that the hour wheel 5 and the first index of the standard time 4 are driven in rotation round 1/12 counterclockwise so as to subtract one hour from legal time.
  • the legal time indicated by the first index of the legal time 4 and by the minute index 6 is now 2h00 according to winter time.
  • the date indicated by the fourth date index 14 is the 27 (i.e. October 27, 2019, day of the changeover to winter time in 2019)
  • the legal time indicated by the first index of the legal time 4 and by the minute index 6 is 2:00 a.m.
  • the sunrise time indicated by the second index 10 on the date disc 8 being 7:08
  • the sunset time indicated by the third index 12 on date disc 8 being 5:29 p.m.
  • the display device makes it possible, during summer time / winter time changes, to simply and quickly correct the indications of the hours of sunrise and / or sunset and of the legal time of synchronized manner, by means of a single control mechanism.
  • a single user manipulation allows the simultaneous adjustment of three items of information (legal time, sunrise time and sunset time).
  • the latch 46 moving between its two stable summer time and winter time positions, allows the user to indicate the position in which the summer / winter selector 26 is located. Indications representing the time of day. summer and winter time can be provided on the watch case for this purpose.
  • the display device makes it possible to manage the summer time / winter time changes without having to move the indexes indicating the times of sunrise and sunset. It avoids the complicated management of cams used to reproduce variations in sunrise and sunset times throughout the year.

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  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
EP19170933.6A 2019-04-24 2019-04-24 Anzeigevorrichtung der somerzeit sowie der uhrzeit des sonnenaufgangs und/oder des sonnenuntergangs Active EP3731028B1 (de)

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EP19170933.6A EP3731028B1 (de) 2019-04-24 2019-04-24 Anzeigevorrichtung der somerzeit sowie der uhrzeit des sonnenaufgangs und/oder des sonnenuntergangs

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EP19170933.6A EP3731028B1 (de) 2019-04-24 2019-04-24 Anzeigevorrichtung der somerzeit sowie der uhrzeit des sonnenaufgangs und/oder des sonnenuntergangs

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EP3731028A1 true EP3731028A1 (de) 2020-10-28
EP3731028B1 EP3731028B1 (de) 2024-05-08

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FR2686166A1 (fr) * 1992-01-13 1993-07-16 Aebischer Nicole Cadrans solaires a heure legale panoramiques.
CH693599A5 (fr) * 2001-05-23 2003-10-31 Jerome Heyberger Pièce d'horlogerie comportant une représentation d'un hémisphère terrestre.
JP2011122952A (ja) * 2009-12-11 2011-06-23 Casio Computer Co Ltd アナログ電子時計
CH712493A2 (fr) 2016-05-27 2017-11-30 Krayon Sàrl Dispositif de correction horloger pour un affichage de phénomènes astronomiques.
EP3339971A1 (de) * 2016-12-23 2018-06-27 The Swatch Group Research and Development Ltd Uhr, die mit einer tag/nachtanzeige ausgestattet ist, die die jahreszeitlichen änderungen berücksichtigt

Family Cites Families (1)

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