Moon phase and earth phase display device for a horological movement

Abstract

The invention relates to a moon and earth phase display device (100) for a timepiece movement, comprising a dial (130) on which are arranged a plurality of graphical representations (112) representing different consecutive phases of a celestial body, respectively, said display device (100) further comprising a drive mechanism (140) configured to move a display (110), the display (110) comprises at least two indicator members (111) having different appearances, the indicator members (111) being configured to represent the moon and the earth, respectively, such that positions of the indicator members (111) relative to the graphical representation (112) represent a moon phase indication and an earth phase indication, respectively.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202510728905.9 (22) Application Date 2025.06.03 (30) Priority Data 24180117.4 2024.06.05 EP (71) Applicant Ita Swiss Watch Manufacturing Co., Ltd. Address Glenching, Switzerland (72) Inventor I. Villar R. Kuvaschl (74) Patent Agency China Patent Agency (Hong Kong) Ltd. 72001 Patent Attorney Moody Houyunzhong (51) Int.Cl. G04B 19 / 26 (2006.01) (54) Invention Title Moon and Earth Phase Display Device for Watch Movement (57) Abstract This invention relates to a moon and earth phase display device (100) for watch movement, the display device comprising a dial (130), The dial (130) is arranged with a plurality of graphic representations (112) symbolizing different continuous phases of celestial bodies. The display device (100) also includes a drive mechanism (140) configured to move the display (110). The display (110) includes at least two indicator members (111) with different appearances. The indicator members (111) are configured to symbolize the moon and the earth, respectively, such that the position of the indicator members (111) relative to the graphic representations (112) indicates the lunar phase indication and the earth phase indication, respectively. Claims 1 page, Description 3 pages, Drawings 2 pages, CN 121069726 A 2025.12.05 CN 1 21 06 97 26 A 1. A moon phase and earth phase display device (100) for a watch movement, characterized in that the display device includes a dial (130) on which a plurality of graphic representations (112) symbolizing different continuous phases of celestial bodies are arranged, the display device (100) further includes a drive mechanism (140) configured to move the display (110), the display (110) including at least two indicator members (111) with different appearances, the indicator members (111) being configured to symbolize the moon and the earth respectively, such that the position of the indicator members (111) relative to the graphic representations (112) indicates the moon phase indication and the earth phase indication respectively. 2. The display device (100) according to claim 1, wherein the indicator member (111) is in the form of a pointer, and the graphical representation (112) is uniformly distributed around the periphery of the dial (130). 3. The display device (100) according to claim 1 or 2, wherein the display (110) includes at least two indicator members (111) in the form of pointers, arranged consecutively to form a flat angle.4. The display device (100) according to any one of claims 1 to 3, wherein the display (110) includes a drive wheel (113) and the display (110) is intended to be moved by the drive mechanism (140) via the drive wheel (113) at a rate of one step per day. 5. The display device (100) according to claim 4, wherein the drive mechanism (140) includes an hour wheel (141) of a gear train of moving parts, a drive wheel (142) kinematically connected to the hour wheel (141) via a series of intermediate wheels (144), the drive wheel (142) being intended to cooperate with the drive wheel (113) by means of a drive finger (143) carried thereon. 6. The display device (100) according to any one of claims 1 to 5, comprising a correction mechanism (150) provided with a control member configured to be kinematically connected to a corrector (153) via a series of intermediate wheels (154). 7. A watch (10), characterized in that it comprises a watch movement provided with a moon phase and land phase display device (100) according to any one of claims 1 to 6. Claims 1 / 1 page 2 CN 121069726 A Moon Phase and Land Phase Display Device for Watch Movement Technical Field

[0001] The present invention relates to the field of watchmaking, and particularly to a device for displaying time variables on a timepiece.

[0002] More specifically, the present invention relates to a device for displaying moon phase and land phase in a watch movement for a watch. Background Art

[0003] Moon phase displays are well known in the watchmaking industry, as are land phase displays (i.e., displays of the portion of the Earth visible from the Moon).

[0004] Moon phase or land phase display devices add significantly greater complexity to the watch movements in which they are integrated.

[0005] Furthermore, for aesthetic reasons, it may be desirable to display moon phase and land phase simultaneously.

[0006] The present invention satisfies this need while simplifying the kinematics for simultaneously displaying moon phase and land phase as much as possible.

[0007] To this end, the present invention relates to a moon phase and earth phase display device for a watch movement. The display device includes a dial on which a plurality of graphic representations, respectively symbolizing different consecutive phases of celestial bodies, are arranged. The display device also includes a drive mechanism configured to move the display, which includes at least two indicator members with different appearances, the indicator members being configured to symbolize the moon and the earth, respectively, such that the position of the indicator members relative to the graphic representations indicates the moon phase and the earth phase, respectively.

[0008] In a particular embodiment, the invention may also include one or more of the following features, which must be considered individually or in any combination that is technically possible.

[0009] In a particular embodiment, the indicator members take the form of pointers, and the graphic representations are evenly distributed around the periphery of the dial.

[0010] In a particular embodiment, the display includes at least two pointer-shaped indicator members arranged sequentially to form a flat angle with each other.

[0011] In a particular embodiment, the display includes a plurality of teeth, the display being intended to move via the teeth by a drive mechanism at a rate of one step per day.

[0012] In a particular embodiment, the drive mechanism includes an hour wheel of a gear train of moving parts, a drive wheel kinematically connected to the hour wheel via a series of intermediate wheels, the drive wheel being intended to cooperate with a transmission wheel by means of drive fingers carried thereon.

[0013] In a particular embodiment, the display device includes a correction mechanism provided with a control member configured to be kinematically connected to a corrector via a series of intermediate wheels.

[0014] The invention also relates to a wristwatch comprising a watch movement provided with means for displaying the moon phase and the Earth phase as described above.

[0015] Referring to the accompanying drawings, other features and advantages of the invention will become apparent from the following detailed description, given by way of example and in no way limiting, wherein: Specification 1 / 3 pages 3 CN 121069726 A

[0016] - FIG1 shows a front view of a watch including a moon phase and earth phase display device according to an exemplary embodiment of the invention,

[0017] - FIG2 shows a perspective view of the watch in FIG1, wherein several components have been obscured to expose the display device.

[0018] It should be noted that the drawings are not necessarily drawn to scale for clarity. Detailed Description

[0019] FIG1 shows a watch 10 according to an exemplary embodiment of the invention, which includes a watch movement provided with a device 100 for displaying moon phase and earth phase.

[0020] The display device 100 includes a display 110, which includes at least two indicator members 111 with different appearances, the indicator members 111 being configured to respectively symbolize the moon and the earth, as described in more detail below.

[0021] As shown in FIG. 1, the display device 100 further includes a dial 130 on which a plurality of graphic representations 112, each symbolizing a different continuous phase of a celestial body, are arranged. Specifically, the dial 130 includes at least four graphic representations 112 evenly distributed around its perimeter, i.e., the graphic representations 112 are closer to the perimeter of the dial 130 than to its center. In the example embodiment shown in FIG. 1, the dial 130 includes eight graphic representations 112. In the example embodiment shown in FIG. 1, two graphic representations 112 opposite each other in the diametrical direction symbolize opposite phases.

[0022] Therefore, the position of the indicator member 111 relative to the graphic representations 112 indicates lunar phase indication and terrestrial phase indication, respectively.

[0023] In the example embodiment of the invention shown in FIG. 1, the indicator member 111 takes the form of a pointer.To give each a distinct appearance to symbolize the Moon and Earth respectively, the indicator components 111 can have their own colors; for example, one could be blue, symbolizing Earth, and the other could be gray, symbolizing the Moon. More specifically, each indicator component 111 can have a body with its free end forming a dot, the body and / or the dot being decorated to make the indicator components 111 distinct from each other.

[0024] In the example shown in FIG. 1, the indicator components 111 are arranged consecutively to form a flat angle. Thus, in this example, the pointers are opposite each other in the diametrical direction. More specifically, the lunar phases occur at the same frequency as the terrestrial phases, and the lunar and terrestrial phases are exactly opposite. In other words, as the surface of the Moon visible from Earth decreases, the surface of the Earth visible from the Moon increases by the same proportion, and vice versa. The dial 130 has an even number of graphic representations 112 such that the indicator components 111 simultaneously point to the opposite graphic representation 112.

[0025] The pointers can be a single monolithic element or two separate elements stacked together and rotating as a single unit.

[0026] As shown in FIG. 1, the graphical representations 112 are arranged on the dial 130 such that they can be continuously indicated by the indicating member 111. For this purpose, the drive mechanism 140 equipped with the display device 100 is configured to move the display 110.

[0027] In the example embodiment shown in FIG. 2, the display 110 includes a drive wheel 113, which is intended to be moved by the drive mechanism 140 at a rate of one step per day via the drive wheel 113. The drive wheel 113 is rigidly connected to the indicating member 111 in a manner known to those skilled in the art, for example by means of a rod, to which the wheel and the member are driven.

[0028] For moving the display 110, the drive mechanism 140 preferably includes a date drive mechanism. In particular, as shown in FIG. 2, the drive mechanism 140 includes an hour wheel 141 of a gear train of moving parts, the hour wheel 141 rotating in a manner known in the art, for example, two revolutions per day. The drive mechanism 140 also includes a drive wheel 142, which, in the exemplary embodiment of the invention shown in FIG. 2, is kinematically connected to the hour wheel 141 via a series of intermediate wheels 144. The drive wheel 142 is intended to cooperate with the geared mechanism of the drive wheel 113 of the display 110 via a drive finger 143.

[0029] In the exemplary embodiment shown in the figures, the drive wheel 113 preferably has an even number of teeth, for example 28 or 30. In particular, in order for the indicator member 111 to point to the graphical representation 112 in each step of the movement of the display 110, the number of teeth of the drive wheel 113 may be equal to the number of graphical representations 112. In this case, it should be understood that, in the exemplary embodiment of the invention shown in FIG. 2, the display 110 is driven in a sequential movement manner.However, the display can be continuously driven by replacing the drive finger 143 with a gear meshing with the drive wheel 113. In this case, the drive wheel 113 has a suitable number of teeth, for example, between 40 and 60, which can be calculated by those skilled in the art.

[0030] Conventionally, as shown in FIG2, the stability of the position of the display 110 is ensured by a pawl cooperating with the teeth of the drive wheel 113.

[0031] Advantageously, the display device 100 may include a correction mechanism 150 provided with a control member, which, in the exemplary embodiment of the invention shown in the figures, is formed by a winding stem 151 connected to the winding button 152. The winding stem 151 is configured to be kinematically connected to the corrector 153 by means of a series of intermediate wheels 154. Such a correction mechanism 150 is shown in the figures but is not described in detail in the text because it is well known to those skilled in the art.

[0032] The present invention advantageously makes it possible to utilize existing designs of watches with date displays. This is because, for implementation, the present invention requires very little adjustment, only requiring replacement of the dial 130 and display 110 of the watch 10. Furthermore, due to the features of the present invention, the quick date correction mechanism can be easily adapted to correct the moon phase and Earth phase.

[0033] More generally, it should be noted that the embodiments and examples considered above have been described by way of non-limiting examples, and therefore other alternatives are also possible.

[0034] It should be noted that, for clarity, components of the watch movement known to those skilled in the art are not described in this text and are not shown in the figures.Page 3 / 3 of the specification 5 CN 121069726 A Figure 1 Page 1 / 2 of the drawings of the specification 6 CN 121069726 A Figure 2 Page 2 / 2 of the drawings of the specification 7 CN 121069726 A HKP2520388 Title: MOON PHASE AND EARTH PHASE DISPLAY DEVICE FOR A HOROLOGICAL MOVEMENT Abstract: The invention relates to a moon phase and Earth phase display device (100) for a horological movement, which display device comprises a dial (130) on which is arranged a plurality of graphical representations (112) symbolising respectively different successive phases of a celestial body, said display device (100) further comprising a drive mechanism (140) configured to move a display (110), the display (110) comprising at least two indicator members (111) of different appearances, configured to symbolise the Moon and the Earth respectively, so that the position of the indicator members (111) relative to the graphical representations (112) represents a Moon phase indication and an Earth phase indication respectively. Abstract。

Claims

1. A moon and earth phase display device (100) for a timepiece movement, characterized in that, The display device comprises a dial (130) on which a plurality of graphical representations (112) are arranged, respectively symbolizing different successive phases of celestial bodies, the display device (100) further comprising a drive mechanism (140) configured to move a display (110) comprising at least two indicator members (111) having different appearances, respectively symbolizing the Moon and the Earth, so that the position of the indicator members (111) relative to the graphical representations (112) respectively represents a lunar phase indication and a terrestrial phase indication.

2. The display device (100) according to claim 1, wherein the indicator members (111) take the form of hands and the graphical representations (112) are uniformly distributed around the periphery of the dial (130).

3. The display device (100) according to claim 1 or 2, wherein the display (110) comprises at least two indicator members (111) in the form of hands arranged in succession to each other so as to form a straight angle.

4. The display device (100) according to any one of claims 1 to 3, wherein the display (110) comprises a transmission wheel (113) via which the display (110) is intended to be moved by the drive mechanism (140) at a rate of one step per day.

5. The display device (100) according to claim 4, wherein the drive mechanism (140) comprises a time cannon wheel (141) of a movement train, a drive wheel (142) being kinematically connected to the time cannon wheel (141) via a series of intermediate wheels (144), the drive wheel (142) being intended to cooperate with the transmission wheel (113) by means of a drive finger (143) carried thereby.

6. The display device (100) according to any one of claims 1 to 5, comprising a correction mechanism (150) provided with a control member configured to be kinematically linked to a corrector (153) via a series of intermediate wheels (154).

7. A watch (10) characterized in that, It comprises a timepiece movement provided with a lunar and terrestrial phase display device (100) according to any one of claims 1 to 6.

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