CN1114513A - Display structure of world timepiece - Google Patents

Abstract

A device is provided for indicating the time of all areas in the world by a simple operation. ''TOKYO'' on an area ring (34) for which the time is displayed by a main timepiece (10) is set to a sub-timepiece (20). Sub-timepieces (22 to 30) display the times which are sequentially ahead of the time of the area of the sub-timepiece (20) by four hours, respectively. Accordingly, the times of a plurality of areas can be read on the spot by looking up the sub-timepieces (22 to 30) and the area ring (34). The sub-timepieces (24), (26), (28) and (30) represent the time at Denver, Rio de Janeiro, Paris or Rome and Karachi, respectively. Since the display of these sub-timepieces is made in the interlocking arrangement with the display of the main timepiece (10), any particular operation is not necessary whenever the time is read.

Description

Display Mechanisms of World Clocks

technical field

The invention relates to the improvement of a world clock display mechanism capable of displaying time in multiple regions in the world.

Background technique

There are precedents in the world's clock display mechanism, such as the example of the wristwatch shown in the Japanese Utility Model Gazette No. 60-64286. From this example, the clock in the middle is equipped with an hour hand that rotates once in 12 hours, and a minute hand that rotates once in 60 minutes, which is an ordinary clock that displays 12 hours. Around this clock and watch, there is a rotatable place name ring and a 24-hour time scale ring. On the place name ring, place names around the world are set in consideration of the time difference between various places; on the 24-hour time scale ring, the numbers from 0 to 23 showing the time are arranged at equal intervals.

For example, the middle clock shows 9:5, which is the current time in Tokyo. With Tokyo as the reference, turn the place-name ring with the crown to align the position of Tokyo on the place-name ring with the 12 o’clock position of the middle clock. Then, Turn the 24-hour time scale ring so that 9 o'clock is aligned with the place name ring Tokyo. At this time, if you compare the place name ring and the 24-hour time scale ring, you can read the time in the area you want to know.

However, the above techniques have the following disadvantages.

(1) Because there are place-name rings and 24-hour scale rings, and the place-name rings need to be rotated by the crown, it may not be easy to read the time, and it is not very convenient to use.

(2) When reading the time around the world from the time of the middle clock, if you do not rotate the 24-hour scale ring and the place name ring to correct the position, you cannot read the time at the destination. For example, at 9 am, the position of "Tokyo" on the place name ring coincides with the "9" on the 24-hour scale ring to read the time in any desired area. Two hours later, that is, at 11 am, in order to read the time in the desired area, the "11" on the 24-hour scale ring must be aligned with the position of "Tokyo" on the place-name ring.

In this way, the positional relationship between the 24-hour scale ring and the place-name ring must be corrected every time. Therefore, it is not very convenient to use if you want to know the time in a specific area frequently.

In order to overcome these disadvantages, an object of the present invention is to provide a display mechanism of a world clock which can easily read the time in various parts of the world.

Another object of the present invention is to provide a display mechanism of a world clock capable of reading the time of several regions in real time without special operations.

Another object of the present invention is to provide a display mechanism for a world clock that is easy to use.

Another object of the present invention is to provide a display mechanism for a world clock, the time display of which changes at any time, and the display pattern is full of interest.

Summary of the invention

According to the present invention, on the main clock displaying the time in a certain area, place name rings displaying place names around the world in consideration of the time difference and several auxiliary clocks displaying the time with the time difference corresponding to the position on the main clock are provided. Relative to the auxiliary clock, turn the place name ring to the predetermined position, and the time in several regions can be read in real time.

The above and other objects, features and advantages of the present invention will be understood from the following detailed description and accompanying drawings.

A brief description of the drawings

Fig. 1 is an embodiment of the world clock display mechanism of the present invention, which is a plan view seen from the time display side.

Fig. 2 is a plan view of the gear train portion of the above embodiment.

Fig. 3 is a sectional view of the main part from the center of the timepiece to the crown in the above embodiment.

Fig. 4 is a partially enlarged sectional view of the gear train in Fig. 3 .

Fig. 5 is a schematic illustration of the rotation of the hour hand of the auxiliary clock in the above embodiment.

Fig. 6 is a plan view of main parts of another embodiment of the present invention.

Best form of invention practice

The present invention can have many embodiments, but only a few suitable examples are given here to illustrate in detail.

Summary of Examples

First, an outline of this embodiment will be described with reference to FIG. 1 . In FIG. 1 , a main timepiece 10 includes an hour hand 12 that makes one revolution in 12 hours, 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 that makes one revolution of these hands at equal intervals. In addition, a part of the needles 12, 14, 16 is cut off. Master clock 10 is the same as the clock that common 12 hours time shows.

Secondly, on the inner side of the main clock 10, six auxiliary clocks 20, 22, 24, 26, 28, 30 are respectively arranged at equal intervals. In these auxiliary clocks and watches 20～30, set hour hand 32 respectively, all are 24 hours time display. In this way, the indication of the hour hand 32 of the auxiliary timepiece 20 coincides with the indication of the hour hand 12 of the main timepiece 10 .

In addition, the time of sub-clocks 20 to 30 is set to be 4 hours ahead per clock in the clockwise direction (in other words, behind 4 hours per clock in the counterclockwise direction). For example, the sub-timepiece 22 is 4 hours ahead of the sub-timepiece 20 (or 20 hours behind). The sub-clock 24 is 4 hours ahead of the sub-clock 22 (or 20 hours behind). The same goes for the other sub-clocks.

In this embodiment, a place-name ring (or place-name circle) 34 is provided on the outer periphery of the main timepiece 10 . On the place name ring 34, 24 hours are set in one week, and the positions of major cities in the world are displayed according to the time difference. For example, since the time difference between Tokyo and Rio de Janeiro is 12 hours, the positions of Tokyo and Rio de Janeiro are on opposite sides on the place name ring 34 . In addition, Hong Kong is 1 hour later than Tokyo, and the location of Hong Kong is indicated as being 1 hour later than Tokyo. The same goes for other place names.

When wanting to know the time around the world, turn place name ring 34 to align the place name corresponding to the main clock 10 display time with the auxiliary clock 20 showing the main clock 10 display time. In the example shown in the figure, because the main clock 10, the auxiliary clock What clock and watch 20 showed is the time of Tokyo, so the position of " Tokyo " on place name ring 34 coincides with 12 o'clock of main clock and watch 10 . In addition, the sub-timepieces 22 to 30 respectively display the local time 4 hours ahead of the local time displayed by the main clock 10 .

Therefore, if the auxiliary clocks 22-30 and the place name ring 34 are compared, the time in several regions can be read in real time. In the example shown, secondary clocks 24, 26, 28, 30 display the time in Denver, Rio de Janeiro, Paris or Rome, and Karachi, respectively. Moreover, the display of these auxiliary clocks is linked with the display of the main clock 10, and no special operation is required to read the time each time.

Composition of the embodiment

Next, specific structures of the above-mentioned main timepiece 10, sub-timepieces 20-30, and place-name ring 34 will be described with reference to FIGS. 2 to 4 . Figure 2 shows the gear mechanism seen from the time display side. Figure 3 shows the main part of the section from the center of the clock to the crown. FIG. 4 is an enlarged view of the gear train for the auxiliary clock in FIG. 3 .

In these figures, a spur gear 42 is provided on a spur gear body 40 at the center of the timepiece that rotates the hour hand 12 of the main timepiece 10 , and three second intermediate gears 44 mesh with the spur gear 42 . These second intermediate gears 44 are symmetrically arranged as shown in FIG. 2 , and each gear meshes with two 24-hour time gears 45 respectively. These 24-hour time gears 45 are also arranged symmetrically as shown in FIG. 2 .

That is, once the spur gear 42 rotates, the 3 second intermediate gears 44 also rotate, and further drive the 6 24-hour time gears 45 to rotate. Because the 2nd intermediate gear 44 is arranged, the direction of rotation of spur gear 42 and 24 hours time gear 45 at this moment is consistent. And, because the gear ratio of the spur gear 42 and the 24-hour time gear 45 is 1:2, the structure that the 24-hour time gear 45 turns 1 turn for every 2 turns of the spur gear 42 is formed. The hour hand 12 of the main timepiece 10 is set on the spur gear 42, and it turns 1 circle in 12 hours as described above. On the other hand, since the spur gear 42 makes two revolutions, the 24-hour time gear 45 makes one revolution, and as a result, the 24-hour time gear 45 makes one revolution every 24 hours.

Next, the back plate 50 is fixed to the time display side of the bottom plate 46 with the back plate screw 48 . The back plate screw 48 is not sized such that it protrudes from the time display side of the back plate 50 . On the liner 50 , three round holes 52 are symmetrically arranged at a certain distance from the center of the clock, and six round holes 54 are symmetrically arranged at a certain distance further outside. Then, the rotary shaft 44A of the second intermediate gear 44 is respectively packed in the circular hole 52 to make it rotatable, and the rotary shaft 45A of the 24-hour time gear 45 is respectively packed in the circular hole 54 to make it rotatable.

Then, a dial 56 is provided on the time display side of the second intermediate gear 44 and the 24-hour time gear 45 . The scales 18 for the 12-hour time display of the main clock 10 and the scales or numbers for the 24-hour time display of the sub-timepieces 20 to 30 are respectively provided on the dial 56 . The dial 56 is supported by a dial support ring 58 .

A pin 45B is provided at the center of the above-mentioned 24-hour time gear 45 to protrude from the time display side of the dial 56 . In this way, as shown in FIG. 3 , the hour hands 32 of the auxiliary timepieces 20 to 30 are respectively provided at the tips of the pins 45B. As described above, since the spur gear 42 and the 24-hour time gear 45 rotate in the same direction, the hour hand 12 of the main timepiece 10 and the hour hands 32 of the sub-timepieces 20 to 30 also rotate in the same direction.

In addition, in FIG. 3 , between the chassis 46 and the bottom cover 60 is provided a watch mechanism 62 such as a battery or a motor that drives the cylindrical gear 42 to rotate. The right side of the same figure is provided with a watch handle 64, which can rotate the place name ring 34 relative to the watch case 66 manually. In the space between the dial 56 and the glass cover 68 on the time display side, the hour hands 32 of the auxiliary clocks 20 to 30, the hour hand 12 of the main clock 10, the minute hand 14, and the second hand 16 rotate in positions arranged in this order along the height direction. .

Next, the auxiliary timepieces 20 to 30 will be further described with reference to FIG. 1 . As described above, the six subsidiary timepieces 20 to 30 are provided at six places on the main timepiece 10 at 12 o'clock, 2 o'clock, 4 o'clock, 6 o'clock, 8 o'clock, and 10 o'clock, respectively. Each auxiliary clock 20-30 is a 24-hour time display, and each hour hand 32 is set with a 4-hour time difference. For example, it is set that the time indicated by the hour hand 32 of the sub-timepiece 22 is 4 hours ahead of the sub-timepiece 20 , and the time indicated by the hour hand 32 of the sub-timepiece 24 is 4 hours ahead of the sub-timepiece 22 . The same goes for other sub-clocks.

In addition, one week of place name ring 34 is 24 hours. Therefore, the hour hand indications of the auxiliary clocks are pre-selected and set, so that the 6 moments that are 4 hours ahead (or behind) in the 24 hours are displayed on the auxiliary clocks 20-30 respectively. Actions of the embodiment

Next, the operation of the present embodiment having the above configuration will be described. The action of the main clock 10 is the same as that of an ordinary clock. The driving force of the clock mechanism 62 respectively drives the hour hand 12 , the minute hand 14 and the second hand 16 to display the time. In addition, since the auxiliary clocks 20-30 are interlocked with the main clock 10, when adjusting the time of the main clock 10, the time of the auxiliary clocks 20-30 will be adjusted by the action of the spur gear 42, the second intermediate gear 44 and the 24-hour time gear 42. It is also automatically adjusted to the time display every 4 hours ahead as mentioned above.

Next, the reading of time in various parts of the world will be explained.

When the spur gear 42 rotates, the second intermediate gear 44 rotates, and further rotates the 24-hour time gear 45 . At this time, the 24-hour time gear 45 rotates once every 24 hours as described above. Therefore, the hour hands 32 of the sub-timepieces 20 to 30 attached to the pin 45B of the 24-hour time gear 45 make one revolution every 24 hours. In addition, the times indicated by the sub-timepieces 20 to 30 differ by 4 hours each, and the time of the sub-timepiece 20 coincides with the time of the main timepiece 10 . On the other hand, the subsidiary clocks 22 to 30 display a time that is 4 hours ahead of the time of the main clock 10 .

When wanting to know the time all over the world, turn place name ring 34, make time align the position of auxiliary clock 20 by the place name shown by main clock 10. In the example shown in the figure, since the main clock 10 displays the Tokyo time, "Tokyo" on the place name ring 10 is aligned with the sub clock 20 . At this time, if the place name ring 34 and the auxiliary clock 22～30 are contrasted, it can be read in real time that it is respectively ahead of Tokyo in 4 hours, 8 hours, 12 hours, 16 hours, 20 hours (or behind Tokyo in 20 hours, 16 hours, 12 hours respectively). , 8 hours, 4 hours) the time of the region. For example, the position of Paris or Rome on the place name ring is aligned with the auxiliary clock 28, so the time can be read from the auxiliary clock 28.

FIG. 5 shows how the hour hand indications of the main timepiece 10 and the sub-timepieces 20 to 30 change. Change from A to B, C, and D in the figure. With reference to the figure, it can be found that the six hour hands 32 are doing very interesting rotations as time changes. The effect of the embodiment

According to the above, the present embodiment has the following effects. (1) Because auxiliary clocks are set, and the adjacent hour hands of these auxiliary clocks display a time difference of 4 hours, so the time in various parts of the world can be easily read. (2) The hour hands of several auxiliary clocks are interlocked with the main clock hour hands, so only need to rotate the place name ring, and the time of several regions can be read in real time without special operation.

In addition, in terms of time adjustment, because the main clock and the auxiliary clock are linked, if the time of the main clock is adjusted, the time of the auxiliary clock will be automatically adjusted by a difference of 4 hours, and the operation is also convenient. (3) The hour hand of the auxiliary clock is making interesting changes. other embodiments

In addition, the present invention is not limited to the above embodiments, for example, the following examples are also included. (1) In the above-described embodiment, sub-clocks 20-30 are respectively set at positions of 12 o'clock, 2 o'clock, 4 o'clock, 6 o'clock, 8 o'clock and 10 o'clock in the even-numbered time of the dial 56, and simultaneously, the time of the sub-clock and watches 20 is the same as The time of the main clock 10 is consistent. But also can as shown in Figure 6, in the position of 1 o'clock, 3 o'clock, 5 o'clock, 7 o'clock, 9 o'clock, 11 o'clock of the odd number time of dial 56, set sub-clock 70～80 respectively, and be set at 1 o'clock sub-clock The time displayed by the clock 70 is 2 hours ahead of the time of the main clock 10 . In addition, the times displayed by the auxiliary clocks 70 to 80 are sequentially advanced by 4 hours in the clockwise direction, which is the same as the previous embodiment.

In this way, the main timepiece 10 and the auxiliary timepieces 70 to 80 can display seven times in total. (2) In the aforementioned embodiment, the hour hand of the auxiliary clock and watch turns 1 circle every 24 hours. If the spur gear 42 is changed, the gear ratio between the second intermediate gear 44 and the 24-hour time gear 45 can also be changed to the 24-hour time gear. It becomes a 12-hour time gear that rotates once every 12 hours. In addition, the main clock 10 can also be changed into a 24-hour time display. (3) In the foregoing embodiment, the number of auxiliary clocks is 6, but it can also be appropriately increased or decreased as required, for example, if n is set, then the time difference between the displayed times of adjacent auxiliary clocks is 24/n.

Possibility of industrial use

According to the above description, because the display mechanism of the world clock of the present invention is on the position considering the time difference, several auxiliary clocks showing the time around the world are set, and the place name ring showing the place names around the world considering the time difference is set at the same time, so it can be convenient. to accurately read the time around the world.

In addition, once the time of the main clock is adjusted, the time of the auxiliary clock can be adjusted at the same time. Adjust the place name ring once, and then you can read the time around the world in real time without any action. It is very convenient to operate.

In addition, the positions of the hour hands of several sub-clocks change constantly, presenting various very interesting displays.

Declaration pursuant to Article 19 of the Treaty

Citation example 1 (JP, U, 1-129684) discloses a multi-display timepiece capable of displaying a predetermined number of regional times. Citation example 2 (JP, U, 1-141485) discloses a world clock composed of a city name circle and a time scale circle. In quoting example 3 (JP, U, 60-70390), disclose the clock and watch with auxiliary needle, and auxiliary needle has several, and can adjust separately.

On the other hand, in the present invention, several sub-timepieces are arranged on a circle corresponding to 24 hours, and the display time difference of each sub-timepiece corresponds to the interval of these sub-timepieces on the circumference. This point is not mentioned in Citation Example 1 and Citation Example 3.

Because of such structure, only just can know the time all over the world easily according to auxiliary clock and place name circle in the present invention, and needn't have the time scale circle like quoting example 2. The operation for knowing the time around the world is also very simple.

In addition, according to the present invention, because the time display of the main clock and each auxiliary clock is related to a certain extent, the time display of the auxiliary clock does not need to be adjusted individually, as long as the time display of the main clock is adjusted, the time of the auxiliary clock will be automatically adjusted. , it is not necessary to have such a complicated secondary needle adjustment mechanism as cited example 3.

In order to clarify the above points, add the article "one week of the place name ring corresponds to 24 hours" in claim 1, and add "a number of auxiliary clocks are arranged on the circumference corresponding to 24 hours in one week, and these auxiliary clocks show The above configuration interval is equivalent to the time difference" this article.

Amendment of claims under Article 19

1. The display mechanism of the world clock, including:

A master clock showing the time in any region;

One week corresponds to 24 hours, considering the time difference to display the place name ring of place names around the world;

A plurality of auxiliary clocks arranged on a circle corresponding to 24 hours a week, these auxiliary clocks display the time with a time difference corresponding to the intervals arranged on the circle;

A gear mechanism that makes the above-mentioned auxiliary clock and the pointer movement of the main clock interlock and rotate the pointer in the same direction.

2. The display mechanism for a world clock according to claim 1, wherein the main clock is a 12-hour time display.

3. The display mechanism for a world clock according to claim 2, wherein the auxiliary clock is a 24-hour time display.

4. The display mechanism for a world clock according to claim 3, wherein one of the auxiliary clocks is set at the 12 o'clock position of the main clock, and its time display is the same as that of the main clock.

5. The display mechanism of the world clock according to claim 4, characterized in that said sub-clocks are arranged at equal intervals at the positions of the even-numbered times of said main clock, and the time display of these sub-clocks advances sequentially by 4 in the clockwise direction Hour.

6. The display mechanism of a world clock according to claim 3, wherein the time display of all sub-clocks that are not installed at the 12 o'clock position of the main clock is different from that of the main clock.

7. The display mechanism of the world clock according to claim 6, characterized in that the auxiliary clocks are arranged at equal intervals at the odd-numbered time positions of the main clock, and the time display of these auxiliary clocks is sequentially advanced by 4 in the clockwise direction Hour.

Claims (7)

1. the indication mechanism of universal clock comprises: the master clock table that shows arbitrary zone time; Consider the time difference, show the place name ring of place name all over the world; A plurality of demonstrations have with the master clock table on the secondary clock and watch of time of the corresponding time difference of position; Make the hand motion interlock of above-mentioned secondary clock and watch and master clock table and along the move gear mechanism of pointer of same direction.

2. according to the indication mechanism of the universal clock of claim 1 record, it is characterized in that above-mentioned master clock table is 12 hours time showings.

3. according to the indication mechanism of the universal clock of claim 2 record, it is characterized in that above-mentioned secondary clock and watch are 24 hours time showings.

4. according to the indication mechanism of the universal clock of claim 3 record, it is characterized in that one of above-mentioned secondary clock and watch are arranged on 12 position of above-mentioned master clock table, its demonstration time and master clock epiphase are same.

5. according to the indication mechanism of the universal clock of claim 4 record, it is characterized in that above-mentioned secondary clock and watch are separately positioned on the position of the even number time of above-mentioned master clock table, and the time showing of these secondary clock and watch went up leading successively 4 hours along clockwise direction.

6. according to the indication mechanism of the universal clock of claim 3 record, it is characterized in that be not arranged on any secondary clock and watch of above-mentioned master clock table 12 position, its time shows that also the time showing with the master clock table is different.

7. according to the indication mechanism of the universal clock of claim 6 record, it is characterized in that above-mentioned secondary clock and watch are separately positioned on the position of the odd number time of above-mentioned master clock table, and the time showing of these secondary clock and watch went up leading successively 4 hours along clockwise direction.

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