DE29716470U1 - 24-hour clock with a rotating dial - Google Patents

Description

Andreas Kruse Old Schönhauser Street 13

10119 Berlin

Phone: 2832934

Description

24-hour clock with rotating dial

Conventional clocks with an analog display have a 12-hour division. The 24 hours of a day are indicated by two revolutions of the hour hand. The hour hand moves 30 degrees per hour, i.e. twice 360 degrees in 24 hours. Conventional 24-hour clocks have a 24-hour division and a corresponding numbering. The hour hand moves 15 degrees per hour. In contrast to clocks with a 12-hour display, the hour hand points downwards at noon, i.e. where the 6 is on conventional clocks with a 12-hour display.

Since the day is divided into 24 hours, an analogue time display over 24 hours would also be an obvious choice, similar to digital time displays. However, with conventional analogue 24-hour displays with a fixed dial with 24-hour division and corresponding numbering, the problem is that the usual abstraction of hand position and time cannot be maintained, since the hour hand only rotates 360 degrees once in 24 hours, i.e. with conventional 24-hour clocks, for example, the hour hand points downwards at 12 o'clock, where the 6 is on conventional clocks with a 12-hour display.

This problem is solved with the features listed in claim 1.

The 24-hour clock with a rotating dial retains the usual abstraction of hand position and time. The hour hand continues to move by 30 degrees per hour, i.e. twice 360 degrees in 24 hours. Since the dial with 24-hour division and corresponding numbering rotates once 360 degrees in 24 hours,

The hour hand points to the number corresponding to the time on the dial with 24-hour division.

Since the dial with 24-hour division and corresponding numbering rotates 360 degrees once in 24 hours, the numbers on the dial must be positioned in such a way that they are vertical, i.e. legible, at the time when the hour hand points to the number corresponding to the time.

This problem is solved with the features listed in claim 2.

Because the existing numbers on the dial from 1 a.m. to 11 p.m. are rotated 15 degrees counterclockwise every hour, the rotation of the dial by 15 degrees per hour in the clockwise direction is compensated.

An embodiment of the invention is explained using the sketch on pages 1 and 2.

Starting from 24 o'clock (picture 1), the hour hand in picture 2) has moved by degrees after 6 hours and points "down" to 6 o'clock. In these 6 hours starting from 24 o'clock = degrees, the dial has rotated by 90 degrees. Since the number 6 on the dial was at 90 degrees at 24 o'clock, after 6 hours it is exactly at the 180-degree position of the hour hand, i.e. where the number 6 is on conventional clocks with an analog 12-hour display.

Starting from 6 o'clock (picture 2), the hour hand in picture 3) has moved another 180 degrees after another 6 hours and is pointing "up" to 12 o'clock. In these 6 hours, starting from 6 o'clock = 180 degrees, the dial has again turned 90 degrees. Since the number 12 was at 270 degrees at 6 o'clock, after 6 hours it is exactly at the 360 or 0 degree position of the hour hand, i.e. where the number 12 is on conventional clocks with an analogue hour display.

Starting from 12 o'clock (picture 3), the hour hand in picture 4) has moved another 180 degrees after another 6 hours and is pointing "down" to 6 o'clock. In these 6 hours, starting from 12 o'clock = 0 degrees, the dial has again turned 90 degrees. Since the number 18 was at 90 degrees at 12 o'clock, after 6 hours it is exactly at the 180-degree position of the hour hand, i.e. where the number 6 is on conventional clocks with an analogue hour display, which actually shows 6 o'clock depending on the time of day and the example given.

The way in which the numbers are rotated by 15 degrees per hour is illustrated in pictures 1) - 4) on pages 1 and 2.

Claims (2)

· Andreas Kruse •ΦΦ&phgr; · ·· •Φ; ΦΦΦ · &phgr; Old Schönhauser Street 13 φφ φφ ·· I ΦΦΦΦ ΦΦ
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ϕ ϕ · 10119 Berlin Phone: 2832934 Protection claims 24-hour clock with rotating dial l.o'clock, which is characterized by the fact that the dial with a 24-hour division and corresponding numbering rotates once in 24 hours by 360 degrees in the same direction as the hour hand. 2. Watch according to protection claim 1, which is characterized by the fact that the existing numerals on the dial from 1 o'clock to ^ 11 o'clock are rotated 15 degrees anti-clockwise every hour.