Requirements for Unity of Application - Japan Patent Office
Requirements for Unity of Application - Japan Patent Office
Requirements for Unity of Application - Japan Patent Office
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[Example 38]<br />
[Title <strong>of</strong> the Invention]<br />
Electromagnetic slewing mechanism and world-time display wristwatch incorporating the<br />
electromagnetic slewing mechanism<br />
[Claims]<br />
1. An electromagnetic slewing mechanism comprising a cylinder (89) having a zigzag (z<br />
<strong>for</strong>m) annular groove (94), a pair <strong>of</strong> electromagnets (96) placed with a given distance, a<br />
permanent magnet (97) placed between the pair <strong>of</strong> electromagnets (96) that travels<br />
between the latter depending on selective activation, and a pin to propel an endless belt<br />
that extends into said cylinder from the permanent magnet (97). (See Figure 1)<br />
2. …A world-time display wristwatch incorporating the electromagnetic slewing mechanism<br />
with a cylinder (89) having a zigzag (z <strong>for</strong>m) annular groove (94), a pair <strong>of</strong> electromagnets<br />
(96) placed with a given distance, a permanent magnet (97) placed between the pair <strong>of</strong><br />
electromagnets (96) that travels between the latter depending on selective activation and<br />
a pin to propel an endless belt that extends into the said cylinder from the permanent<br />
magnet (97). The pin that penetrates to the electromagnetic slewing mechanism drives<br />
the endless belt on which the time <strong>of</strong> each world city (25) is displayed on a horizontal<br />
direction and, on the vertical direction, time at a given local time <strong>of</strong> various world cities (24)<br />
are displayed. …The movement <strong>of</strong> the endless belt reveals a large number <strong>of</strong> world<br />
times. (See Figures 1, 2 and 3)<br />
[Excerpt from Detail Description <strong>of</strong> the Invention and Drawings]<br />
In this invention, the back-and-<strong>for</strong>th movement <strong>of</strong> the electromagnetic slewing device is<br />
converted to the spin <strong>of</strong> endless belt, which enables a display <strong>of</strong> time at a large number <strong>of</strong><br />
world cities in a wristwatch.<br />
As the slewing mechanism <strong>for</strong> endless belt <strong>for</strong> displaying a large number <strong>of</strong> world times,<br />
electric motor is conventionally used. Inclusion <strong>of</strong> a motor may be appropriate <strong>for</strong> large display<br />
panels <strong>for</strong> air terminals or a telegraph <strong>of</strong>fice; however, such a device is inappropriate <strong>for</strong> use in<br />
a wristwatch. By developing the electromagnetic slewing mechanism <strong>of</strong> this invention, it<br />
became possible to include a slewing device into a wristwatch.<br />
Figure 2<br />
Figure 1<br />
Figure 3<br />
[Explanation]<br />
The technical fields <strong>of</strong> the specified invention (Claim 1) and related invention (Claim 2) are<br />
“electromagnetic slewing mechanism” and “display <strong>of</strong> world time,” respectively. Since the<br />
electromagnetic slewing mechanism is miniaturizable process <strong>for</strong> turning endless belt, and<br />
application <strong>of</strong> this turning mechanism to world-time display wristwatch is also appropriate, the<br />
technical fields <strong>of</strong> the specified and related inventions are technically and directly related and<br />
their industrial fields <strong>of</strong> application <strong>of</strong> both inventions are the same.<br />
72
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