JP5539249B2 - Moon display mechanism and watch equipped with the same - Google Patents

Description

  The present invention relates to a moon age display mechanism and a timepiece equipped with the same, and more particularly to a moon age display mechanism that simultaneously displays changes in moon phases and the age of the moon, and a timepiece equipped with the same.

  2. Description of the Related Art Conventionally, there is known a moon age display mechanism that is provided in a clock or the like and displays the fullness of the moon (moon phase) and the age of the moon at the same time. As such a moon age display mechanism, there exists a thing described in patent document 1, for example.

  The age display mechanism described in Patent Document 1 includes a plate-like body arranged on the back side of the dial of the watch, and the plate-like body has a bright area and a dark area by a boundary line of a straight line or a curve. Divided into regions, a plurality of bright regions are arranged on the circumference. Further, in this plate-like body, a plurality of triangular indexes are arranged on a circumference concentric with the circumference where a plurality of bright regions are arranged.

  In addition, the dial is formed with a circular opening that shows the shape of the moon with light and dark areas appearing inside, and an elongated opening in which one of a plurality of indicators appears, and around the elongated opening A plurality of numbers indicating the age of the moon are shown.

  According to the age display mechanism configured as described above, the plate-like body has a large rotation (main rotation) of about 45 degrees or more for selecting a bright area appearing in the circular opening, and the selected bright area. It rotates by repeating a combination with a small rotation (sub rotation) of an angle of about 1 to 4 degrees for gradually changing the area appearing from the circular opening.

  By repeating such a combination of main rotation and sub rotation, the index appearing at the elongated aperture is as if one index is moving while gradually changing its position within the elongated aperture. It indicates the part corresponding to the age among the numbers shown around the elongated opening. As a result, the change in the moon phase appearing in the circular opening and the moon age appearing in the elongated opening corresponding to the moon phase are simultaneously displayed.

Japanese Patent No. 4559308

  However, according to the age display mechanism proposed in Patent Document 1 described above, the shape of the moon appearing in the circular opening and the position of the indicator appearing in the elongated opening gradually change, There is a problem that the configuration becomes complicated because it is necessary to arrange the positional relationship of a plurality of indices and to rotate the plate-like body by combining the main rotation and the sub rotation.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a moon age display mechanism capable of simultaneously displaying the change in moon phases and the moon age with a simple configuration.

  The moon display mechanism according to the present invention is configured to relatively rotate the first plate and the second plate that are overlapped with each other, thereby displaying the pattern of the moon displayed on the first plate. The degree of overlap with the shadow formed on the second plate-like body is changed to display the moon phases, and the moon among a plurality of indicators arranged on the circumference concentric with the center of relative rotation An indication part formed on the second plate-like body displays the age corresponding to the fullness of the.

  That is, the age display mechanism according to the present invention includes a first plate-like body and a second plate-like body that are overlapped with each other and relatively rotated, and the first plate-like body has a plate surface thereof. In the above, a plurality of indicators representing the age of the moon are arranged in a circle concentric with the center of relative rotation, and a single lunar pattern is displayed on the second plate-like body. , A shadow portion that changes the outline shape of the lunar pattern according to a change in the degree of overlap according to the relative rotation, and an indication of the age corresponding to the outline shape of the lunar picture among the plurality of indicators And an instruction unit.

  In addition, a timepiece according to the present invention includes the above-described moon age display mechanism according to the present invention.

  According to the moon age display mechanism according to the present invention, it is possible to simultaneously display the change in moon phases and the moon age with a simple configuration.

It is a front view which shows the external appearance of the timepiece provided with the age display mechanism of this embodiment. It is a disassembled perspective view explaining the structure of the age display mechanism 1 of FIG. It is a figure which shows the display by a moon age display mechanism, (a) is the state of a new moon, (b) is the state which passed 5 days from the day of the new moon, (c) was passed 10 days from the day of the new moon. State, (d) is the state after 15 days from the date of the new moon, (e) is the state after 20 days from the date of the new moon, (f) is the state after 25 days from the date of the new moon, (G) shows the state after about 30 days from the day of the new moon. It is a disassembled perspective view explaining the structure of the age display mechanism of the modification 1. FIG. It is a front view explaining the structure of the age display mechanism of the modification 2.

  Hereinafter, based on FIGS. 1-3, the age display mechanism 1 as embodiment of this invention is demonstrated.

FIG. 1 is a front view showing an external appearance of a timepiece 100 provided with a moon age display mechanism 1 of the present embodiment, and FIG. 2 is an exploded perspective view for explaining the configuration of the moon age display mechanism 1 of FIG.
[Overall schematic configuration]
As shown in FIG. 1, the timepiece 100 according to the present embodiment includes a case 2, a scale plate 4 provided with a time scale 3 indicating a time, provided in the case 2, an hour hand, a minute hand, a second hand, and the like. Needle 5 (hour hand 6, minute hand 7, second hand 8), a movement 9 (not shown) for driving the hand 5, and a moon age display mechanism 1 for displaying the moon age.

  As shown in FIG. 2, an opening 10 is formed in the scale plate 4. The opening 10 has a circular opening 10a formed at a substantially central portion of the plate surface of the scale plate 4, a substantially semicircular opening 10b having a smaller radius than the opening 10a, and a 6 o'clock direction. And a substantially semicircular opening 10c having a smaller radius than the opening 10a.

And the age display mechanism 1 provided in the back side of this scale plate 4 can be visually observed from a part of circular opening 10a and the substantially semicircular opening 10c.
[Configuration of the age display mechanism]
As shown in FIG. 2, the moon age display mechanism 1 has an upper dial 11 (first plate), a moon disk 12 (second plate), and lower letters on the back side of the scale plate 4. The plates 13 (third plate-like bodies) are configured to overlap in this order.
(Upper dial)
The upper dial plate 11 is provided with a moon age display portion 14 on the plate surface in the 6 o'clock direction.

  The age display section 14 is provided with a circular window section 15. The window portion 15 may be colored transparent or colorless transparent, and a transparent member (for example, transparent plastic or the like) through which the moon-shaped disk 12 disposed on the back side of the upper dial 11 can be seen through. It is formed with.

  In the window portion 15, a plurality of numbers (indexes) representing the age of the moon are arranged on a circumference concentric with the center of the window portion 15. In addition, if it is the parameter | index showing a moon age, not only a number but a character and a symbol may be sufficient.

  Specifically, the numbers “0”, “5”, “10”, “15”, “20”, “25” are sequentially arranged from the 12 o'clock direction at an angle of 30 degrees. ing. Also, a single moon pattern A is displayed in the 6 o'clock direction.

Further, numbers “5”, “10”, “15”, “20”, and “25” are sequentially arranged at intervals of about 30 degrees from the design A of the moon in the clockwise direction.
(Age disk)
The moon-shaped disc 12 is overlapped with the upper dial plate 11 so as to rotate relative to the upper dial plate 11 with a central axis C1 passing through the center of the window portion 15 as a rotation center.

  That is, the age disk 12 is driven by the movement 9 so as to rotate clockwise at an equal angular speed of about 6 degrees every 24 hours.

  Further, the moon disk 12 is formed on the upper surface of a plate formed of, for example, a transparent plastic (transparent member) by changing the degree of overlap according to the relative rotation with the upper dial plate 11 ( A shadow portion 16 that changes the moon phase) and an indication portion 17 that indicates an indication of the age corresponding to the contour shape of the picture A of the moon among a plurality of numbers arranged on the upper surface of the upper dial 11 are formed. ing.

  This shadow part 16 is comprised by the 1st shadow part 16a and the 2nd shadow part 16b which were formed by vapor-depositing layers, such as gray and black, on the board upper surface of the age-old disk 12, for example. Each of the first shadow portion 16a and the second shadow portion 16b is substantially circular and has a diameter larger than the picture A of the moon.

  The instruction unit 17 is formed on a part of one of the first shadow part 16a and the second shadow part 16b (in FIG. 2, the first shadow part 16a). The instructing portion 17 has a diameter slightly larger than the size of the number so that one of a plurality of numbers arranged on the upper surface of the upper dial plate 11 can appear inside (see FIG. 1). It is formed by the circular opening which has.

In the present embodiment, the case where the shadow portion 16 is configured by two shadow portions of the first shadow portion 16a and the second shadow portion 16b will be described. As long as it rotates while gradually changing the area overlapping with the picture A of the moon, the shadow 16 may be composed of one or three or more shadows.
(Lower dial)
The lower dial plate 13 is provided with a circular lower plate portion 18 having a diameter substantially the same as that of the window portion 15 on the plate surface and centered on the central axis C1. A part of the lower plate portion 18 is formed with a decorative portion 19 having a three-dimensional shape or line drawing that is superimposed on the lunar pattern A and decorates the lunar pattern A.

  The decorative portion 19 is made of a material that reflects light, such as a mirror. Further, the central portion of the decorative portion 19 is formed so as to slightly swell toward the surface side (the moon disk 12 side), and is configured so that the moon pattern A can be seen three-dimensionally.

  Since the upper dial plate 11 and the moon age disc 12 are formed of a transparent member and the lower dial plate 13 disposed on the back side of the upper dial plate 11 and the moon age disc 12 can be seen through, the pattern A of the moon The plurality of numbers for displaying the age are not necessarily displayed on the upper dial plate 11 but may be displayed on at least one of the upper dial plate 11 or the lower dial plate 13.

  Next, the effect | action of the age display mechanism 1 of this embodiment is demonstrated using FIG.

FIG. 3A is a diagram in which the moon age display mechanism 1 displays the state of the new moon, and FIGS. 3B to 3G are diagrams in which the moon age display mechanism 1 displays 5 from the date of the new moon. It is the figure which displays the state which passed on the 10th, 15th, 20th, 25th, about 30 days.
(New Moon Day)
As shown in FIG. 3 (a), on the day of the new moon, the second shadow 16b overlaps with the entire area of the picture A of the moon, and the decoration 19 appears hidden behind the second shadow 16b. Disappear. At this time, the number “0” appears in the indication unit 17 formed in the first shadow 16a.

Thus, when the user sees the state where the entire area overlaps with the second shadow portion 16b and the state where the numeral “0” appears in the indication portion 17, the user can recognize that day as the new moon. It can be confirmed.
(5th day from the date of the new moon)
Then, when the moon disk 12 is rotated at an equal angular speed by the movement 9 and about 5 days have passed from the day of the new moon, as shown in FIG. The outline shape of the pattern A of the moon on which the shadow portion 16 is not overlapped becomes a crescent moon shape. At this time, the crescent shape is emphasized because the decorative part 19 arranged on the back side is superimposed on the portion of the picture A of the moon having a crescent shape.

  Furthermore, a number “5” appears inside the instruction unit 17, indicating that five days have passed since the new moon day (month age).

This is consistent with the fact that the shape of the moon that can be seen from the earth on the day when about 5 days have passed since the date of the new moon is the crescent moon shape. It can be confirmed that about 5 days have passed since the day of the month.
(10th day from the date of the new moon)
Further, when about 10 days have passed since the day of the new moon, as shown in FIG. 3C, the second shadow 16b further deviates from the picture A of the moon, and the shadow of the area of the picture A of the moon The area of the region where 16 does not overlap increases. And this area | region is emphasized when the decoration part 19 arrange | positioned at the back side is superimposed and visually observed.

  In addition, a number “10” appears inside the instruction unit 17, indicating that 10 days have passed since the new moon (month age).

This coincides with the fact that the shape of the moon that can be seen from the earth on the day when about 10 days have passed since the date of the new moon is the shape that the full moon is slightly missing. It is possible to confirm the shape of the moon that can be seen on that day and that about 10 days have passed since the day of the new moon.
(15th day from the new moon day)
When about 15 days have passed since the day of the new moon, as shown in FIG. 3D, the second shadow 16b is separated from the pattern A of the moon, and the pattern A of the moon where the shadow 16 does not overlap is shown. The contour is circular. And this circular area | region is emphasized when the decoration part 19 arrange | positioned at the back side is overlapped and visually observed.

  At this time, the number “15” appears inside the instruction unit 17, indicating that 15 days have passed since the date of the new moon (month age).

This is consistent with the fact that the moon that can be seen from the earth on the day when about 15 days have passed since the day of the new moon is the full moon. It can be confirmed that about 15 days have passed.
(20th day from the date of the new moon)
When about 20 days have passed since the day of the new moon, as shown in FIG. 3 (e), the first shadow 16a overlaps the pattern A of the moon, and the pattern A of the moon where the shadow 16 does not overlap is shown. The contour shape again becomes a shape slightly missing from the circle. At this time, the number “20” appears inside the instruction unit 17.

Thereby, similarly to the above, the user can confirm the shape of the moon that can be seen on the day and that the day has passed about 20 days from the day of the new moon.
(25th day from the date of the new moon)
Furthermore, when about 25 days have passed since the day of the new moon, as shown in FIG. 3 (f), the area where the first shadow 16a overlaps the pattern A of the moon increases, and the month where the shadow 16 does not overlap. The outline shape of the pattern A is a crescent moon shape. At this time, the number “25” appears inside the instruction unit 17.

Thereby, similarly to the above, the user can confirm the shape of the moon that can be seen on the day and that the day has passed about 25 days from the day of the new moon.
(30th day from the date of the new moon)
When about 30 days have passed since the day of the new moon, as shown in FIG. 3G, the first shadow 16a overlaps the entire region of the pattern A of the moon. Thereby, the user can confirm that the day is a new moon again.

  As described above, the age disk 12 is rotated by 180 degrees by equiangular rotation over approximately 30 days, so that the age display mechanism 1 can start the new moon day (from the new moon day). The change in the moon phase until about day 30) and the age, the number of days from the new moon day, are displayed.

  Then, the moon disk 12 repeats equiangular rotation and further rotates 180 degrees over about 30 days, so that the moon age display mechanism 1 displays the change in the moon phases and the moon age until the next new moon.

  According to the age display mechanism 1 according to the present embodiment configured as described above, the upper dial plate 11 and the age disc 12 that are overlapped with each other are rotated at a relatively constant angular velocity with the central axis C1 as the rotation center. As a result, the degree of overlap between the lunar pattern A displayed on the upper dial 11 and the shadow portion 16 formed on the lunar disk 12 is gradually changed to display the fullness of the moon and concentric with the central axis C1. Since the indicator 17 formed on the lunar disk 12 displays the age corresponding to the fullness of the moon among a plurality of numbers (indicators) arranged on the circumference of the circle, the positions of the plural indices as in the past It is possible to simultaneously display the change in moon phases and the age of the moon with a simple configuration without arranging the relationship in a complicated manner or complicatedly rotating the plate-like body.

  Further, according to the age display mechanism 1 according to the present embodiment configured as described above, the degree of overlap between the lunar pattern A and the shadow 16 is gradually changed by equiangular rotation, as described above. In order to display the fullness, it matches the sense that the shape of the moon that can actually be seen from the earth gradually changes.

  Furthermore, since the instruction unit 17 is provided in a part of the shadow unit 16 (the first shadow unit 16a in this embodiment), it is not necessary to provide the shadow unit 16 and the instruction unit 17 as separate bodies. It is a simple configuration and the number of parts can be reduced.

  In addition, the indication unit 17 is formed by an opening, and among the plurality of numbers displayed on the upper dial plate 11, an indication of the age corresponding to the contour shape of the picture A of the moon appears inside the opening. Easy to grasp.

  And since the upper dial 11 is formed of a transparent member and the moon-shaped disc 12 is arranged on the back side of the upper dial 11, when the user looks at the age display unit 14 from the front side, Since the picture A always appears on the front side, it is easy to find the picture A of the moon even if the shadow 16 overlaps the entire area of the picture A of the moon.

  In addition, since the lower dial 13 is provided with a three-dimensional shape or a line-shaped decoration portion 19 that is superimposed on the lunar pattern A and decorates the lunar pattern A, of the region of the lunar pattern A Since the area where the shadow part 16 does not overlap is emphasized by the decoration part 19, it is easy to grasp the change of the fullness of the moon.

Moreover, according to the timepiece 100 including the age display mechanism 1 according to the present embodiment configured as described above, the same effect as described above can be obtained.
(Modification 1)
FIG. 4 is an exploded perspective view illustrating the configuration of the age display mechanism 1 of the first modification.

  In the above-described embodiment, the case where the upper dial plate 11 is formed of a transparent member and the moon-shaped disc 12 is arranged on the back side of the upper dial plate 11 has been described. For example, as shown in FIG. The disc 12 may be disposed on the upper surface side of the upper dial plate 11.

According to the age display mechanism 1 configured in this way, the region of the lunar pattern A where the shadow 16 overlaps is not viewed, and only the region where the shadow 16 does not overlap is visible, The shape can be displayed with more emphasis.
(Modification 2)
FIG. 5 is a front view illustrating the configuration of the age display mechanism 1 according to the second modification.

  In the above-described embodiment, the case where the instruction portion 17 is formed by an opening provided in a part of the shadow portion 16 has been described. For example, as shown in FIG. A displayed arrow or the like may be configured such that the arrow indicates a number corresponding to the age of the moon and displays the age of the moon.

  According to the age display mechanism 1 configured as described above, since it is not necessary to form an opening in the shadow portion 16, only the region of the lunar pattern A where the shadow portion 16 does not overlap is arranged on the back side. Since the decoration part 19 is superimposed and visually observed, the user can more easily grasp the shape of the moon.

1 Moon display mechanism 11 Upper dial (first plate)
12-month-old disc (second plate)
13 Lower dial (third plate)
16a 1st shadow part (shadow part)
16b Second shadow part (shadow part)
17 Instruction part 19 Decoration part A Moon pattern C1 Center axis

Claims (6)

A first plate-like body and a second plate-like body which are overlapped with each other and rotate relatively;
In the first plate-like body, on the plate surface, a plurality of indices representing the age of the moon are arranged in a circle concentric with the center of relative rotation, and a single moon pattern Is displayed,
The second plate-like body includes a shadow portion that changes an outline shape of the moon pattern according to a change in the degree of overlap according to the relative rotation, and an outline of the moon pattern among the plurality of indicators. An indication unit showing an indicator of age corresponding to the shape, and a moon age display mechanism.   The age indication mechanism according to claim 1, wherein the instruction unit is provided in a part of the shadow portion.   The moon indication mechanism according to claim 1 or 2, wherein the indicator is formed by an opening. The first plate-like body is formed of a transparent member,
4. The age display mechanism according to claim 1, wherein the second plate-like body is disposed on a back side of the first plate-like body. 5.   5. A third plate-like body in which a three-dimensional shape or a line drawing decoration part for decorating the moon pattern is superimposed on the moon pattern is provided. 5. The age display mechanism according to any one of the above items.   A timepiece comprising the age display mechanism according to any one of claims 1 to 5.