JPH03287092A - World clock - Google Patents

Abstract

PURPOSE:To allow the direct reading of the local time of the places displayed on a disk at a glance by forming the hour hand which rotates one turn a day to a disk shape and displaying the major place names of the world on this disk-shaped clock in the angular positions proportional to time differences. CONSTITUTION:A user turns a ring 10 for moving a reference hand to set this ring at Tokyo and turns a ring 9 for adjusting the time to set the reference hand 7 at the present time of Tokyo on a dial 4 when the user locating at present in the place Tokyo desires to know the local time of the major places of the world. The user knows the present time of Tokyo if he reads the characters of the dial 4 indicated by the reference hand 7. The user is able to know, at a glance, all of the local time of the major places of the world indicated on the dial 4 if he reads the characters of the dial indicated by the place names of the world. If the user is going to stay at any of the major places of the world, the user turns the ring 10 to set the reference hand 7 at the desired place name and sets the reference hand 7 at the local time of this place and the user is able to similarly know the local time of the other major place.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a world clock that allows the current time at major points in the world to be known at a glance without the hassle of operation.

[Problems to be solved by conventional technology and inventions] Nowadays, people travel all over the world and information from all over the world is instantly available, and the need to know the local time in various parts of the world has increased significantly. Ta.

Along with this, many types of world clocks that indicate the local time at major points around the world are already on the market. There is a ring containing people at major points in the world at intervals of 200 seconds.Turn the ring to align the person at the current time with the hour hand position that shows the current time, and match the person on the ring at the world you want to know about. read the letters on the dial,
Digital clocks that let you know the local time at a particular point are known to digitally display the time at the point you want to know, either by adjusting the dial to the position where each point in the world is displayed, or by pressing a button at that position. There is.

However, all of the conventional world clocks require some kind of operation, and with the analog clock, as the current time at the current location passes, it is necessary to follow this to adjust the person at the current location on the ring. Digital clocks have the inconvenience of having to repeatedly press buttons or dials each time to know the local time at another location.The present invention was made with the aim of solving the above-mentioned inconveniences of conventional world clocks. The purpose of the present invention is to provide a world clock which allows the user to know the local time at major points in the world at a glance without any operation.

[Means to solve the problem]

To achieve the above object, the present invention provides a timepiece equipped with an hour hand that rotates once a day on a 24-hour display dial and a minute hand that rotates once per hour. It features a world clock that displays the names of the world's major points on the hour hand, distributed at angular positions on the disc proportional to each time difference.

[For production]

The present invention has a disc-shaped hour hand that rotates in one day on a 24-hour display dial, and the names of major points in the world are written on the disc-shaped hour hand at angular positions on the disc that are proportional to their respective time differences. Since they are distributed and displayed, you can know the local time of all the points displayed on one disk at a glance just by reading the letters on the dial indicating the point names on the disk.

〔Example〕

The present invention will be described in detail below based on an illustrated embodiment.

In the figure, 1 is an analog mechanical world clock according to the present invention, 2 is its case, 3 is a glass cover 4 is a dial with a 24-hour display, and 5 is a disc-shaped hour hand that corresponds to the hour hand of an ordinary clock, and indicates a 24-hour clock. Rotate the dial 4 on the display once a day. 6 is a minute hand that rotates once per hour on the dial 4, 7 is a reference indicator provided on the disc-shaped hour hand 5, which indicates the time at the reference point with the current location as the reference point. 68 is a battery. formula,
A clock movement such as a mainspring type, 9 is an adjustment wheel for setting the time similar to a normal watch, which is installed on the back side of the case 2, and 10 is an adjustment wheel for setting the time, similar to a normal watch.When the reference point is changed, the reference pointer moves to match the changed point. This is the reference pointer moving wheel. In addition, although not shown, a second hand that rotates once per minute, a date, and a day of the week display may be provided.

The disc-shaped hour hand 5 is located at a reference point, for example, if the current location in Tokyo is the reference point, the angular position on the disc-shaped hour hand 5 is proportional to the time difference from Tokyo, that is, Hong Kong, which has a minus one hour time difference, is the reference point. Pankok, which has a time difference of -2 hours, is located 15 degrees counterclockwise from Tokyo, Paris, which has a time difference of -8 hours, is located 120 degrees counterclockwise, and , plus 6
Honolulu, which has a time difference, is located 90 degrees clockwise, and New York, which has a 10-hour time difference.

At 165 degrees clockwise angular position, etc., they are similarly displayed on the disc-shaped hour hand 5 in the radial direction.

If you are currently in Tokyo and want to know the local time at major points in the world, turn the reference pointer moving wheel 10 to set it to Tokyo.
Next, turn the time adjustment wheel 9 to set the reference hand 7 to the current time in Tokyo on the dial 4. And the dial 4 that the reference pointer 7 points to
If you read the characters on the dial 4, you can tell the current time in Tokyo, and if you read the characters on the dial 4 that indicate the names of places in the world, you can see at a glance the local time of all the major points in the world shown in 5.

When staying in a major place in the world, turn the reference pointer moving wheel 10 to set the reference pointer 7 to the name of that place, and also set the reference pointer 7 to the local time at that point. It can be used as a clock, and also allows you to know the local time in Tokyo and other major locations.

It is also preferable to display the names of major locations by color-coding them to make them easier to distinguish, and also to add design features.

It is also possible to make modifications such as fixing the disc-shaped hour hand 5 and rotating the dial 4. Also, this world clock can be used as a table clock,
Of course, it is also possible to use it as a travel portable watch, wristwatch, etc.

〔Effect of the invention〕

As explained above, the present invention allows the 24-hour dial to be
The hour hand that rotates once a day is formed into a disk shape, and the hour hand rotates once a day.
The names of major points in the world are displayed in angular positions on a disk proportional to their respective time differences, and by reading the letters on the dial that indicate the above point names, you can see the time at the point in the world you want to know at a glance. By making it possible to know the local time of major points in the world that you want to know at a glance, you can of course use it as a regular clock at your current location, without any operations, and even when you travel to other parts of the world. In addition to being able to be used locally as an ordinary clock, it also allows you to know the local time in each major place in the world.For example, when contacting other parts of the world, you can avoid late-night communications. It can be said that this invention is extremely useful in practical terms in society.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of the world clock of the present invention, and FIG. 2 is a longitudinal cross-sectional view of the same. 1...World clock, 4...Dial face, 5...Disc-shaped hour hand, 6...Minute hand, 7...Reference indicator hand.

Claims (1)

[Claims] The hour hand rotates once a day on the 24-hour display dial, and the hour hand rotates once a day.
In a clock equipped with a rotating minute hand, the hour hand is formed into a disk shape, and the names of major points in the world are displayed on the disk-shaped hour hand, distributed at angular positions on the disk proportional to their respective time differences. Features a world clock.