EP4256405A1 - Device enabling a timepiece movement to display the time in a predefined time zone - Google Patents
Device enabling a timepiece movement to display the time in a predefined time zoneInfo
- Publication number
- EP4256405A1 EP4256405A1 EP21835994.1A EP21835994A EP4256405A1 EP 4256405 A1 EP4256405 A1 EP 4256405A1 EP 21835994 A EP21835994 A EP 21835994A EP 4256405 A1 EP4256405 A1 EP 4256405A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- display
- time
- time zone
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000004044 response Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 3
- 210000003323 beak Anatomy 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
- G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial
-
- 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
- G04B19/06—Dials
- G04B19/16—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
-
- 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
-
- 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
- G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
- G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
Definitions
- the present invention relates to a display device, for a watch movement, comprising a time display mobile intended to carry a time display member in a predefined time zone, and to be driven from adapted manner from a drive wheel of the watch movement, a frame intended to be moved in rotation around a first main axis and to cooperate with fixed indications with reference to the frame of the watch movement to display information, a movable member rotatably mounted on the chassis along a second axis of rotation distinct from the first main axis, a correction mechanism arranged to be able to drive the movable member in such a way that it has a predefined angular position with reference to the frame of the watch movement independently the angular position of the frame around the first main axis.
- the present invention also relates to a timepiece movement comprising such a display device as well as a timepiece comprising such a timepiece movement.
- patent application EP 0921451 A1 describes a watch comprising a frame defining a display hand for the current hours, pivoted along a first main axis of rotation, and carrying both a graduated dial and a current minute hand, both being pivoted along the same second axis of rotation with reference to the chassis.
- the graduated dial is driven in such a way that it has the same orientation with reference to the frame of the watch movement in all the angular positions of the frame.
- the current minute hand is driven to display the current minutes in relation to the scale dial.
- Patent CH 702422 B1 presents a similar watch comprising an orbital dial for displaying current times.
- the corresponding display device comprises a chassis driven by the watch movement to pivot along a first main axis of rotation.
- the frame carries an hour dial pivoted along a second axis of rotation, distinct from the first axis of rotation, in such a way that it permanently has the same orientation with reference to the frame of the watch movement.
- a current hour display hand is also rotatably mounted on the frame, being driven to rotate along the second axis of rotation and display the current hours in relation to the hour dial.
- a current minute display hand can be rotatably mounted on the frame, along the second axis of rotation and, in a particular variant embodiment, that the frame be driven to make one turn in twelve or twenty- four hours to display the time in a second time zone.
- the frame could be provided with an index cooperating with fixed hour graduations.
- a main object of the present invention is to provide a display device of alternative construction compared to known display devices, in order to produce a timepiece with an original appearance and great readability.
- the present invention relates more particularly to a display device of the type mentioned above, characterized in that the respective angular positions of the frame and of the mobile display are indexed with respect to one another. other in such a way that the angular position of the frame around the first main axis is intended to be associated with the display of information relating to the predefined time zone, and in that the device further comprises a selection mechanism arranged :
- the present invention takes in a certain way the opposite of these complex display devices with chassis driven by the watch movement, by proposing a mobile chassis only at the request of the user and presenting static information in operation. normal.
- provision may be made for the mobile display to be carried by the chassis while being arranged to rotate along the second axis of rotation.
- the mobile member prefferably be a dial bearing graduations relating to the hours.
- the hour dial advantageously has an angular orientation such that its noon position is always positioned in alignment with the noon position of a conventional fixed dial, and the reading of the time in the predetermined time zone can be done routinely and intuitively.
- the display device may further comprise a mobile display for the current minute, intended to carry a display member for the current minute, rotatably mounted on the frame following the second rotation axis.
- a mobile display for the current minute intended to carry a display member for the current minute, rotatably mounted on the frame following the second rotation axis.
- the device when the moving member is a dial bearing graduations relating to the hours, provision can also be made for the device to comprise a kinematic correction link arranged between the moving member and a toothing intended to be mounted fixed. with reference to the frame of the watch movement, the kinematic correction link being arranged in such a way that for each rotation of the frame through a given angle, the movable member is driven in rotation through an angle equal to twice this given angle but in opposite direction with reference to the direction of rotation of the frame.
- the device comprises a kinematic drive connection arranged to connect the time display wheel set to the watch movement drive wheel set, the kinematic drive link comprising a planetary gear comprising:
- a satellite carrier intended to be kinematically connected to the driving wheel of the watch movement and carrying at least one satellite arranged in engagement with the time display wheel
- the display device can further comprise a mobile for displaying the time in the local time zone.
- the present invention also relates to a watch movement meeting the characteristics set out above, as well as a timepiece comprising such a watch movement associated with a fixed mounted support with reference to the frame of the watch movement and bearing indications relating to time zones allowing them to be identified.
- FIG. 1 shows a schematic front view of part of a timepiece comprising a display device according to a preferred embodiment of the present invention
- FIG. 2 shows a simplified front view of part of the display device according to the preferred embodiment of Figure 1;
- FIG. 3 shows a simplified cross-sectional view of the components visible in Figure 2, along section line BB shown in Figure 2;
- FIG. 4 shows a simplified front view of another part of the display device according to the preferred embodiment of Figure 1, and
- FIG. 5 shows a simplified cross-sectional view of the components visible in Figure 4, along section line A-A shown in Figure 4.
- FIG. 1 represents a schematic view of part of a timepiece 1 comprising a display device 2 according to a preferred embodiment of the present invention, making it possible to clearly explain the general principle thereof.
- Figure 1 and its detailed description which follows are provided by way of illustrative example and those skilled in the art may make adaptations justified by their own needs without necessarily departing from the scope of the invention as defined by the claims.
- the display device 2 according to the present invention can be directly integrated into a watch movement or it can be assembled with a basic watch movement in the form of an additional module without departing from the scope of the invention.
- a display device 2 in the form of an additional display module will be described below for the sake of simplifying this presentation.
- the construction details of the basic clock movement will not be discussed here, for the sake of conciseness and simplification, given that the implementation of the present invention does not directly depend thereon.
- the timepiece 1 comprises, in a conventional manner, a box housing a watch movement (not visible) surmounted by a dial 4 here having a substantially annular general shape.
- the dial 4 includes a window 5 through which appears a portion of a disc 6 displaying the hours in the local time zone (hometime).
- Disc 6 is graduated over twenty-four hours and is driven by the watch movement to complete a full revolution in twenty-four hours by rotating counter-clockwise.
- the dial 4 has an annular portion 8, at its inner periphery, bearing city names regularly distributed all around, each city name being associated with a well-defined time zone. Some city names are associated with an “—s” inscription, the “s” in this case being positioned in line with the adjacent city name, to indicate the offset corresponding to daylight saving time.
- the center of dial 4 is hollowed out in order to be able to arrange therein a mechanism for displaying the time in an additional, predefined time zone.
- This mechanism comprises a frame (numeral reference 10 in Figure 2) carrying an optional closure plate 12, intended to hide the watch movement, a time zone index 14, intended to cooperate with the names of cities carried by the annular portion 8 , as well as a dial 16, secondary, preferably bearing graduations relating to the hours.
- the display device 2 can for example be carried by the plate of a basic watch movement.
- the display device 2 comprises a selection mechanism arranged in such a way that a user can act on the frame 10 to make it rotate around a first axis of rotation. 18 main, here in the center of the central opening of the dial 4.
- the timepiece 1 comprises a pusher 20 for this purpose, connected to the selection mechanism in such a way that each time the user on the pusher 20, the frame 10 rotates by one step, in a given direction of rotation, here in the direction of clockwise rotation by way of non-limiting illustration.
- the annular portion 8 of the dial 4 bears twenty-four names of cities defining as many different positions of the frame 10, each of which is associated with the time display. current in the corresponding time zone.
- the display device 2 is arranged in such a way that the frame 10 performs a complete turn on itself, in steps of 1/ 24th of a turn, in response to twenty-four successive presses by the user on the pusher 20.
- Figure 1 illustrates, in broken lines, the angular position that the dial 16 would occupy after twelve pressures from its position illustrated in solid lines. It can be seen that the index 14 behaves like a standard indicator hand, in relation to the names of cities, to facilitate the reading of the name of the city opposite which the dial 16 is positioned.
- the dial 16 is itself rotatably mounted on the frame 10, along a second axis of rotation 22, being connected to a correction mechanism arranged to maintain the angular orientation of the dial 16 constant with reference to the frame of the movement watchmaker.
- the frame 10 also carries display elements for the current time in the predefined time zone, here an hour hand 24 and a minute hand 26, both arranged to rotate along the second axis of rotation 22
- the two hands 24 and 26 are driven not only to display the current time in the predefined time zone, but also to correct their positions when the frame 10 and therefore the dial 16 are moved in rotation at the request of the user, as will emerge from the following description.
- the timepiece 1 also comprises a time-setting crown 28 which can advantageously have an axial position in which its rotation makes it possible to correct the time in a synchronized manner in the local time zone and in the local time zone. additional. It may also be advantageous to provide an additional axial position of the crown 28 in which its rotation makes it possible to correct the time in the local time zone or in the additional time zone independently of the time in the other zone.
- FIGS. 2 and 3 illustrate simplified views, respectively from the front and in section, of part of the display device 2 making it possible in particular to ensure that the angular orientation of dial 16 is maintained during movement of frame 10
- FIGS. 4 and 5 illustrate simplified views, respectively from the front and in section, of a part of the display device 2 making it possible to ensure adequate driving of the hour 24 and minute 26 hands on the dial 16.
- the frame 10 is secured to a toothed wheel 32, here by three screws 30, this toothed wheel 32 being rotatably mounted on an element (not shown, for example the plate) of the frame of the watch movement, following the first axis of rotation 18.
- the frame 10 and the toothed wheel 32 have openings aligned with the first axis of rotation 18, and defining a passage 34 whose function will be explained later.
- the toothed wheel 32 here has twenty-four teeth with which a jumper 36 cooperates to define the twenty-four different angular positions of the frame 10 with reference to the watch movement.
- the pusher 20 is intended to cooperate with a selection mechanism for selecting the angular position occupied by the frame 10 with reference to the watch movement.
- the pusher 20 can more particularly be arranged to act on a control member, here a rotating selection flip-flop 38 with reference to the frame of the watch movement.
- the selector rocker 38 is positioned and sized to cooperate with the toothing of the toothed wheel 32 in response to pressure from the user on the pusher 20, such that pressure on the pusher 20 causes the toothed wheel 32 with a single step, making it possible to pass from one time zone to the next.
- the selector rocker 38 comprises an actuating beak 40 formed at the free end of an elastic arm allowing the actuating beak 40 to retract when the selector rocker 38 returns to its rest position ( as illustrated in Figure 2), under the effect of the action of an elastic return member 42, integrated.
- the frame 10 also carries a ring gear 44 intended to carry the dial 16 and to allow it to be driven in rotation with reference to the frame 10.
- the ring gear 44 is mounted on the frame 10 in such a way to be able to pivot freely with reference to the latter.
- the toothed ring 44 is connected to a fixed toothed ring 46, via a kinematic correction link making it possible to maintain constant the angular orientation of the dial 16 with reference to the frame of the watch movement.
- the kinematic correction link here comprises a first transmission 48, the pinion of which is in engagement with the ring gear 44 and the wheel of which is in engagement with the wheel of a second transmission 50, itself being in engagement with the teeth of the fixed toothed crown 46.
- the kinematic correction link advantageously has a gear ratio such that the dial 16 rotates by one twelfth of a turn around the second axis of rotation 22 each time the frame 10 rotates by a twenty-fourth of a turn. around the first axis of rotation 18 (the frame 10 and the dial 16 rotating in opposite directions).
- the frame 10 and the dial 16 have respective fixed positions/orientations .
- the user wishes to modify the additional time zone whose time is indicated by the hour hand 24, in relation to the dial 16, he presses as many times as necessary on the pusher 20 to rotate the frame 10 until so that the index 14 is located opposite the desired city name, the angular orientation of the dial 16 being maintained unchanged thanks to the kinematic correction link.
- the driving of the indicator hands 24 and 26 facing the dial 16 will now be explained in more detail in relation to Figures 4 and 5.
- the hands 24 and 26 must both be driven to indicate the time current in the predefined time zone, and be driven so as to indicate the current time while keeping the same angular reference, that is to say the dial 16 whose angular orientation is kept constant, when the frame 10 pivots.
- the display device 2 comprises a kinematic drive connection arranged to connect a time display mobile 52, intended to carry the hour hand 24 in the predefined time zone, to a mobile drive (not visible) of the watch movement.
- This kinematic drive link comprises an additional roadway 54 intended to be driven from the drive wheel of the watch movement to make a complete turn, along the first axis of rotation 18, in one hour.
- the transmission of the movement from the drive wheel of the watch movement to the additional floor 54 is carried out through the passage 34.
- the rotational movement of the additional floor 54 is thus independent of any rotational movements of the frame 10.
- the additional floor 54 is arranged in engagement with a first wheel of a drive gear 56 having a second wheel arranged in engagement with a spindle floor 58, arranged on the frame 10 to pivot along the second axis of rotation 22 and intended to carry the minute hand 26.
- the spindle floor 58 carries two satellites 60 arranged in mesh with the toothing of the time display mobile 52. At the same time, each satellite 60 is also in mesh with the toothing of a sun wheel 62 coaxial to the hour display mobile 52.
- the sun wheel 62 is part of a sun wheel 64 also carrying a compensation sun wheel 66 arranged in mesh with a pinion of the second transmission 50 in mesh with the fixed ring gear 46.
- the wheels 62 and 66 are therefore integral in rotation.
- the sun wheel 62 is fixed since it is kinematically connected to the fixed toothed crown 46.
- the respective teeth of the hour display mobile 52 and of the sun wheel 62 have substantially identical pitch diameters but slightly different numbers of teeth, so that when the satellites 60 roll on the fixed teeth of the sun wheel 62, they induce a slight rotation of the moving hour display 52 clockwise, with a speed of rotation such that it completes a full rotation on itself in twelve hours.
- the mobiles arranged to pivot around the second axis of rotation 22 define a planetary gear, activated when the user acts on the pusher 20 to cause the frame 10 to pivot.
- the spindle roadway 58 continues to play the role of a first input for the planetary gear, via its connection with the driving wheel of the watch movement, but also plays the role of planet carrier, with the satellites 60.
- the sun wheel 62, engaged with the satellites 60 plays the role of second input since it is driven by the second transmission 50, forced to roll on the teeth of the fixed toothed ring 46 when the frame 10 rotates around the first axis of rotation 18.
- the hour display mobile 52 plays the role of output by driving the hour hand 24 of the predefined time zone according to a resultant of the movements of the zone roadway 58 and of the frame 10.
- the satellites 60 are driven by the sun wheel 62 to rotate faster than during normal operation and drive the hour hand 24 in such a way that it passes from the display of the time in a first time zone to that of the time in a second time zone in a time corresponding to the travel time of the frame 10, in response to the action of the user on the pusher 20.
- the gear ratios involved in the planetary gear train, and between the latter and the fixed ring gear 46, are adjusted in such a way that when the frame 10 pivots one twenty-fourth of a turn, the hour hand 24 rotates one-twelfth of a turn (in the same direction of rotation here).
- the driving wheel of the watch movement can for example be a conventional roadway (possibly modified so as not to have the standard barrel intended to carry the minute hand), which would also be connected to the organ of local time display.
- the time-setting crown 28 can be arranged to act in a conventional manner on the roadway of the watch movement in order to correct the time, the corresponding movements of the roadway then being retransmitted simultaneously to the two display members of the watch movement. local time 6 and in the preset time zone 24.
- the present invention allows the production of an original and particularly easily readable display device 2, while presenting a total number of contained components, consequently involving a number of modifications to be made. to a relatively limited basic watch movement.
- the frame 10 could only carry a display member whose position, controlled with reference to the frame of the watch movement, would allow intuitive reading of the quantity displayed, without it being necessarily necessary to provide a graduated dial whose angular orientation should be kept fixed.
- the quantity displayed could be different from the time in a predefined time zone and the time display mobile 52 could be arranged to pivot along the first axis of rotation 18, without leaving the frame of the invention.
- the minute display hand 26 could also be arranged to pivot along the first axis of rotation 18, independently of the position of the hour display hand 24, without however, departing from the scope of the invention.
- the frame 10 could have a different shape, possibly extended to allow it to carry one or more additional display mobiles, possibly associated with an additional orbital dial (at the user's request).
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01549/20A CH718136A9 (en) | 2020-12-07 | 2020-12-07 | Device for displaying the time in a predefined time zone for a watch movement. |
PCT/EP2021/084101 WO2022122569A1 (en) | 2020-12-07 | 2021-12-03 | Device enabling a timepiece movement to display the time in a predefined time zone |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4256405A1 true EP4256405A1 (en) | 2023-10-11 |
Family
ID=79230852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21835994.1A Pending EP4256405A1 (en) | 2020-12-07 | 2021-12-03 | Device enabling a timepiece movement to display the time in a predefined time zone |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240036520A1 (en) |
EP (1) | EP4256405A1 (en) |
JP (1) | JP2023553864A (en) |
CN (1) | CN116724274A (en) |
CH (1) | CH718136A9 (en) |
WO (1) | WO2022122569A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461599A (en) * | 1943-07-22 | 1949-02-15 | Graef Jean Pierre | Hour-increment hour hand setting mechanism |
CH557556A (en) * | 1971-01-28 | 1974-12-31 | ||
FR2772153B1 (en) | 1997-12-08 | 2000-02-18 | Formes Technologie Innovation | NEEDLE DISPLAY WATCH WITH MOBILE MINUTES DIAL |
CH702422B1 (en) | 2009-12-17 | 2015-03-13 | Winston Harry Sa | Timepiece. |
CH715546B1 (en) | 2018-11-14 | 2022-06-30 | Chronode Sa | Display mechanism for watch movement. |
-
2020
- 2020-12-07 CH CH01549/20A patent/CH718136A9/en unknown
-
2021
- 2021-12-03 EP EP21835994.1A patent/EP4256405A1/en active Pending
- 2021-12-03 CN CN202180080991.7A patent/CN116724274A/en active Pending
- 2021-12-03 WO PCT/EP2021/084101 patent/WO2022122569A1/en active Application Filing
- 2021-12-03 JP JP2023533687A patent/JP2023553864A/en active Pending
- 2021-12-03 US US18/255,929 patent/US20240036520A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2022122569A1 (en) | 2022-06-16 |
CH718136A2 (en) | 2022-06-15 |
CH718136A9 (en) | 2022-09-30 |
JP2023553864A (en) | 2023-12-26 |
CN116724274A (en) | 2023-09-08 |
US20240036520A1 (en) | 2024-02-01 |
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