JPH0784071A - Display structure for world watch - Google Patents

Abstract

PURPOSE:To provide a display structure for a world watch in which times of districts of the world can be easily read by a simple operation. CONSTITUTION:When a time of each district of the world is desirably known, 'TOKYO' of a place name ring 34 for displaying a time of a main watch 10 is matched to a position of a sub-watch 20. Sub-watches 22-30 display times of districts advanced by four hours to a time of the district of the sub-watch 20. Accordingly, when the sub-watches 22-30 and the ring 34 are observed, times of a plurality of the districts can be read real time. The sub-watch 24 indicates Denver's time, the sub-watch 26 indicates Rio de Janeiro's time, the sub-watch 28 indicates Paris or Rome's time, and the sub-watch 30 indicates Karachi's time. These sub-watches cooperate with the indication of the main watch 10, and hence it is not necessary to conduct a special operation at each time of reading the time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the display structure of a world clock that displays the time in a plurality of regions of the world.

[0002]

2. Description of the Related Art As a display structure of a world timepiece, for example, there is a wristwatch disclosed in Japanese Utility Model Laid-Open No. 60-64286. According to this conventional example, the central timepiece has an hour hand that makes one revolution in 12 hours and a minute hand that makes one revolution in 60 minutes, and is a normal 12-hour timepiece. And around this watch, a rotatable place name ring and 24
An hour ring is provided. Place names around the world are displayed on the place name ring in consideration of the time difference. Further, on the 24-hour ring, numbers 0 to 23 indicating time are displayed at equal intervals.

For example, assume that the central clock indicates 9:05, which is the current time in Tokyo. When using Tokyo as a reference, rotate the place name ring using the crown,
Place the place name ring in Tokyo at 12 o'clock on the central clock. And then, rotate the 24 o'clock ring,
Make sure that 9 o'clock is the location name ring in Tokyo. By looking at the place name ring and the 24 o'clock ring in this state, the desired place name and its time can be read.

[0004]

However, the above conventional techniques have the following disadvantages. (1) There are a place name ring and a 24-hour ring, and since the place name ring is rotated by using the crown, it is not always easy to read the time and the operability is not simple.

(2) When the time around the world is read from the time of the central clock, the time of the target area cannot be read unless the position is corrected by rotating the 24-hour ring and the place name ring each time. For example, it is assumed that the time of any desired area is read by aligning "9" on the 24-hour ring with the position of "Tokyo" on the place-name ring at 9 am. After that, in order to read the time of the area at 11:00 am after 2 hours, the "11" on the 24-hour ring must be set to the position of "Tokyo" on the place name ring.

As described above, it is necessary to correct the positional relationship between the 24-hour ring and the place-name ring each time. Therefore,
It is not always easy to use if you always want to know the time in a specific area. The present invention focuses on these points, and a first object thereof is to provide a display structure of a world timepiece capable of easily reading the time of each place in the world.

A second object is to provide a display structure of a world clock capable of reading the time of some regions in real time without any special operation. Third
The purpose of is to provide a display structure of a world clock with excellent operability. A fourth object is to provide a display structure of a world clock in which the time display changes moment by moment and the display is rich in taste.

[0008]

In order to achieve the above-mentioned object, the display structure of the world timepiece of the first invention takes into consideration the time difference between the main timepiece that displays the time of any area and the place names of various parts of the world. Indicated by the place name ring, a plurality of sub-clocks for displaying the time of the time difference corresponding to the position on the main clock, and a gear mechanism for moving these sub-clocks in the same direction in conjunction with the movement of the main clock. It is characterized by having and.

A second invention is the same as the first invention,
The main clock or the sub clock is a 12-hour display or a 24-hour display. A third aspect of the invention is characterized in that, in the second aspect, one of the sub clocks is provided on the 12 o'clock or 24 o'clock side of the main clock, and the time is the same as that of the main clock. .

A fourth invention is the same as the second invention,
The sub clock is provided on a time side other than the 12:00 or 24:00 side of the main clock, and the time of any of the sub clocks is different from the time of the main clock.

[0011]

According to the present invention, a plurality of sub timepieces, for example, six sub timepieces which are moved by a time difference of 4 hours are provided. Also,
A place name ring is displayed in which place names around the world are displayed in consideration of the time difference. By rotating this place name ring to a predetermined position with respect to the sub clock, it is possible to read the times of a plurality of regions in real time.

[0012]

Embodiments of the display structure of the world timepiece according to the present invention will be described below in detail with reference to the accompanying drawings. <Outline of Embodiment> First, an outline of this embodiment will be described with reference to FIG. In the figure, the main clock 10 has a 12
It includes an hour hand 12 that makes one revolution in time, a minute hand 14 that makes one revolution in 60 minutes, a second hand 16 that makes one revolution in 60 seconds, and a scale 18 provided at equal intervals on the entire circumference of rotation of these hands.
Note that some of the needles 12, 14, 16 are omitted. The main clock 10 is similar to a normal 12-hour display clock.

Next, inside the main timepiece 10, 6 at equal intervals are provided.
Two sub-clocks 20, 22, 24, 26, 28, 30 are provided respectively. These sub clocks 20-30 have
An hour hand 32 is provided for each, and all of them display 24 hours. The instruction of the hour hand 32 of the sub timepiece 20 matches the instruction of the hour hand 12 of the main timepiece 10.

The sub-clocks 20 to 30 are set so that the time is advanced by 4 hours in the clockwise direction (in other words, delayed by 4 hours in the counterclockwise direction). For example, the sub clock 22 is displayed 4 hours ahead of (or 20 hours behind) the sub clock 20. The sub clock 24
4 hours ahead (or 20 hours behind) of the sub clock 22
It is displayed. The same applies to the other sub clocks.

Further, in this embodiment, a place name ring (or place name bezel) 34 is provided on the outer periphery of the main timepiece 10. This place name ring 34 is set to 24 hours for one lap, and the names of major cities in the world are displayed at positions where the time difference is taken into consideration. For example, the time difference between Tokyo and Rio de Janeiro is 1
Since it's two hours, Tokyo and Rio de Janeiro are displayed just opposite the place name ring 34. Also, since Hong Kong is ahead of Tokyo by one hour, Hong Kong is displayed at a position one hour ahead of Tokyo. The same applies to other place names.

When it is desired to know the time around the world, the main clock 10 is set at the position of the sub clock 20 indicating the display time of the main clock 10.
The place name ring 34 is rotated so that the place name corresponding to the time displayed by is matched. In the illustrated example, the main clock 10,
Since the sub clock 20 is displaying the time in Tokyo, "TOKYO" on the place name ring 34 is set to the 12 o'clock position of the main clock 10. On the other hand, the sub clocks 22 to 30 include the main clock 1
The time of the area advanced by 4 hours is displayed for the area of time 0.

Therefore, the subclocks 22 to 30 and the place name ring 3
By looking at 4, it is possible to read the times of a plurality of regions in real time. In the illustrated example, the sub clock 24 shows the time of Denver, the sub clock 26 shows the time of Rio de Janeiro, the sub clock 28 shows the time of Paris or Rome, and the sub clock 30 shows the time of Karachi. Moreover, the display of these sub clocks is the main clock 10
Since it is linked to the display of, it is not necessary to perform a special operation every time the time is read.

<Structure of Embodiment> Next, the main timepiece 1 described above
Specific mechanisms of 0, the subclocks 20 to 30, and the place name ring 34 will be described with reference to FIGS. 2 to 4. In addition,
FIG. 2 shows the gear configuration as seen from the display surface side of the timepiece, and FIG. 3 shows the main part of the cross section from the center of the timepiece to the crown. Further, FIG. 4 shows the gear train for the sub timepiece shown in FIG. 3 in an enlarged manner.

In these figures, a cylindrical gear body 40 at the center of the timepiece for rotating the hour hand 12 of the main timepiece 10 is provided with a cylindrical gear 42, and this cylindrical gear 42 has three second gears.
The intermediate wheel 44 is engaged. These second intermediate cars 44
Are symmetrically arranged as shown in FIG. 2, and two 24-hour cars 45 are engaged with each two. These two
The 4-hour cars 45 are also arranged symmetrically as shown in FIG.

That is, when the cylindrical gear 42 rotates, the three second intermediate wheels 44 rotate, and the six 24-hour wheels 45 also rotate. Since the second intermediate wheel 44 is present in the rotation direction at this time, the cylindrical gear 42 and the 24-hour wheel 45 are rotated.
Will match. In addition, the ratio of the number of teeth of the cylindrical gear 42 and the 24-hour wheel 45 is set to 1: 2, so that the cylindrical gear 42 is set to 2
When rotated, the 24-hour car 45 is configured to rotate once. The hour wheel 12 of the main timepiece 10 is provided on the cylindrical gear 42, and makes one revolution in 12 hours as described above. On the other hand, the 24-hour wheel 45 makes one rotation when the cylindrical gear 42 makes two rotations, and thus makes one rotation in 24 hours.

Next, a back plate 50 is fixed to the time display side of the main plate 46 by a back plate screw 48. The back plate screw 48 has a shape dimension that does not project from the back plate 50 toward the time display side. The back plate 50 has three round holes 52 symmetrically formed at a predetermined distance from the center of the timepiece, and six round holes 54 symmetrically formed at a predetermined distance outside thereof. There is. And in the round hole 52,
The rotary shafts 44A of the second intermediate wheel 44 are rotatably fitted in the round holes 54, and the rotary shafts 45A of the 24-hour wheel 45 are rotatably fitted in the round holes 54, respectively.

Next, a dial 56 is provided on the time display side of the second intermediate wheel 44 and the 24-hour wheel 45.
On the dial 56, the 12-hour scale 18 of the main clock 10 and the 24-hour scale and numbers of the sub-clocks 20 to 30 are displayed. Such a dial 56
Are supported by the dial receiving ring 58.

A pin 45B is provided at the center of the 24-hour wheel 45 so as to project toward the time display side of the dial 56. Then, as shown in FIG.
The hour hands 32 of the sub timepieces 20 to 30 are provided at the tip of each. As described above, since the rotating directions of the cylindrical gear 42 and the 24-hour wheel 45 coincide with each other, the hour hand 1
2 and the rotation direction of the hour hand 32 of the subclocks 20 to 30 match.

In FIG. 3, the base plate 46 and the back cover 60 are shown.
A timepiece mechanical body 62 such as a battery or a motor that rotationally drives the tubular gear 42 and the like is provided between and. A crown 64 is provided on the right side of the figure, and the place name ring 34 is provided so as to be manually rotatable with respect to the case 66.
Further, in the space between the dial 56 and the glass plate 68 on the time display side, the hour hand 32 of the sub timepiece 20 to 30, the hour hand 12, the minute hand 14, and the second hand 16 of the main timepiece 10 are arranged at the height positions in that order. It is configured to rotate.

Next, referring also to FIG. 1, the subclocks 20 to 3
0 will be further described. As described above, the six sub timepieces 20 to 30 are provided at six positions on the main timepiece 10 on the 12 o'clock side, 2 o'clock side, 4 o'clock side, 6 o'clock side, 8 o'clock side, and 10 o'clock side, respectively. . Each of the sub timepieces 20 to 30 is displayed for 24 hours, and an instruction is set so that each hour hand 32 has a time difference of 4 hours. For example, the hour hand 32 of the sub clock 22 indicates the time advanced by 4 hours with respect to the sub clock 20,
The hour hand 32 of the sub clock 24 is set so as to indicate the time advanced by 4 hours with respect to the sub clock 22. The same applies to the other sub clocks.

On the other hand, one round of the place name ring 34 is 24 hours. Then, the instructions of the hour hands of the sub clocks are set in advance so that the six times which are advanced (or delayed) by 4 hours of the 24 hours are displayed on the sub clocks 20 to 30, respectively.

<Operation of Embodiment> Next, the operation of this embodiment having the above-described structure will be described. The operation of the main timepiece 10 is the same as that of a general timepiece, and the driving force of the timepiece mechanical body 62. Is transmitted to the hour hand 12, the minute hand 14, and the second hand 16, respectively, and the time is displayed. Since the sub timepieces 20 to 30 are interlocked with the main timepiece 10, if the time of the main timepiece 10 is adjusted, the operation of the cylindrical gear 42, the second intermediate wheel 44, and the 24-hour wheel 42 causes the operation of the subclock time 20 to 30. The time of 30 is automatically set to the time advanced by 4 hours.

Next, reading of time around the world will be described. When the cylindrical gear 42 rotates, the second intermediate wheel 44 rotates, and further the 24-hour wheel 45 rotates. At this time,
The 24-hour car 45 makes one revolution in 24 hours as described above. Therefore, the hour hand 32 of the sub timepieces 20 to 30 attached to the pin 45B of the 24-hour wheel 45 makes one rotation in 24 hours. In addition, each sub clock 20 to 30 respectively indicates a time difference of 4 hours.
The time of 0 matches the time of the main clock 10. Therefore, the sub clocks 22 to 30 respectively display the time advanced by 4 hours with respect to the time of the main clock 10.

When it is desired to know the time around the world, the place name ring 34 is rotated so that the place name at the time displayed by the main clock 10 becomes the position of the sub clock 20. In the illustrated example, since the main clock 10 displays the time of Tokyo, “TOKYO” of the place name ring 10 is the position of the sub clock 20. Therefore, if you look at the sub clocks 22 to 30 and the place name ring 34, it is 4 hours, 8 hours, 12 hours, 1 hour with respect to the time of Tokyo.
It is possible to read in real time the time of an area that has advanced by 6 hours or 20 hours (or is delayed by 20 hours, 16 hours, 12 hours, 8 hours, or 4 hours from the time of Tokyo). For example, at the time of Paris or Rome, since the position of the place name ring is the sub clock 28, the time of the sub clock 28 may be read.

FIG. 5 shows a main clock 10 and sub clocks 20 to 3.
The state of the indication change of the hour hand of 0 is shown. Same figure (A)
To (B), (C), (D), and so on.
As can be seen from this figure, the six hour hands 32
Makes very interesting moves over time.

<Effects of the Embodiment> As described above, according to this embodiment, the following effects are obtained. (1) Since the sub-clocks that display the time difference of 4 hours between the adjacent hour hands are provided, the time in each part of the world can be easily read. (2) The hour hands of the plurality of sub clocks are moved in conjunction with the hour hand of the main clock, and the time of a plurality of regions can be read in real time without performing a special operation simply by turning the place name ring.

The main clock and the sub clock are interlocked with each other for time adjustment, and if the time of the main clock is adjusted, the time of the sub clock is automatically adjusted to be different by 4 hours, so that the operability is also good. . (3) The hour hand of the sub clock makes an interesting change.

<Other Embodiments> The present invention is not limited to the above embodiments, and includes, for example, the following. (1) In the above-described embodiment, the sub-clocks 20 to 30 are provided on the dial plate 56 at the 12 o'clock side, 2 o'clock side, 4 o'clock side, 6 o'clock side, 8 o'clock side, and 10 o'clock side, respectively. The time is set to coincide with the main clock 10. However, as shown in FIG. 6, 1 o'clock side, 3 o'clock side, 5 o'clock side, 7 o'clock side of dial 56,
Sub clocks 70 to 80 are provided at 9 o'clock side and 11 o'clock side,
The sub clock 70 on the 1 o'clock side may indicate a time that is two hours ahead of the time of the main clock 10. The sub clock 7
The point to display the time when 0 to 80 progressed in order by 4 hours,
This is similar to the above embodiment. By doing this, the main clock 1
This means that 0 and the sub clocks 70 to 80 can display a total of seven times.

(2) In the above embodiment, the hour hand of the sub clock is 2
Although it is configured to rotate once in four hours, the gear ratio between the cylindrical gear 42, the second intermediate wheel 44, and the 24-hour wheel 45 is changed to 24
The hour wheel may be a 12-hour wheel that makes one revolution in 12 hours. Further, the main clock 10 may be displayed for 24 hours. (3) In the above embodiment, the number of sub-clocks is six,
It may be increased or decreased as needed. For example, if n pieces are provided, the time difference between adjacent sub clocks is 24 / n.

[0035]

As described above, the display structure of the world timepiece according to the present invention has the following effects. (1) Since a plurality of sub-clocks for displaying the time around the world are provided at positions that consider the time difference, and a place name ring that displays the place names around the world considering the time difference is provided.
Easy to read the time around the world.

(2) When the time of the main clock is adjusted, the time of the sub clock can also be adjusted, and once the place name ring is adjusted, the time around the world can be read in real time without any operation thereafter. It has excellent operability. (3) The hour hand positions of the plurality of sub-clocks change from moment to moment, so that a very interesting and interesting display is displayed.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a display structure of a world timepiece according to the present invention viewed from a time display side.

FIG. 2 is a plan view showing a gear train portion of the embodiment.

FIG. 3 is a sectional view showing a main part from the center of the timepiece to the crown of the embodiment.

4 is a partial cross-sectional view showing an enlarged gear train portion in FIG.

FIG. 5 is an explanatory diagram showing the movement of the hour hand of the sub timepiece according to the embodiment.

FIG. 6 is a plan view of a main part showing another embodiment of the present invention.

[Explanation of symbols]

 10 ... Main clock 12 ... Hour hand 14 ... Minute hand 16 ... Second hand 18 ... Scale 20,22, 24, 26, 28, 30 ... Sub clock 32 ... Hour hand 34 ... Place name ring 40 ... Cylindrical gear body 42 ... Cylindrical gear 44 ... Second Intermediate car 45 ... 24-hour car 46 ... Main plate 50 ... Back plate 56 ... Dial

[Procedure amendment]

[Submission date] September 6, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Change

[Correction content]

Further, in this embodiment, a place name ring (or place name bezel) 34 is provided on the outer periphery of the main timepiece 10. This place name ring 34 is set to 24 hours for one lap, and the names of major cities in the world are displayed at positions where the time difference is taken into consideration. For example, the time difference between Tokyo and Rio de Janeiro is 1
Since it is 2 hours, Tokyo and Rio de Janeiro are displayed on the opposite side of the place name ring 34. Also, since Hong Kong is one hour behind Tokyo, Hong Kong is displayed at a position one hour behind Tokyo. The same applies to other place names.

Claims (4)

[Claims] 1. A main clock that displays the time of any one of the regions, a place name ring in which place names of various places in the world are displayed in consideration of the time difference, and a time difference time corresponding to the position on the main clock. A display structure for a world timepiece, comprising: a plurality of sub timepieces, and a gear mechanism that moves the subclocks in the same direction by interlocking with the movement of the main timepiece. 2. The display structure of the world timepiece according to claim 1, wherein the main clock or the sub-clock displays 12 hours or 24 hours.
World clock display structure characterized by time display. 3. The display structure of the world timepiece according to claim 2, wherein one of the sub clocks is 12 o'clock or 24 o'clock of the main clock.
The display structure of the world clock, which is provided on the hour side and has the same time as the main clock. 4. The display structure of the world timepiece according to claim 2, wherein the sub clock is provided on a time side other than the 12:00 or 24:00 side of the main clock, and the time of any sub clock is the main clock. The display structure of the world clock, which is different from the time of day.