JPH0280826U

JPH0280826U -

Info

Publication number: JPH0280826U
Application number: JP16062288U
Authority: JP
Priority date: 1988-12-09
Filing date: 1988-12-09
Publication date: 1990-06-21

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は表面図
、第２図は裏面図、第３図は側面図、第４図ない
しは第９図は計測例を示す要部の平面図もしくは
裏面図で、第４図はＡ−イを示す表面図、第５図
はＡ−ロを示す裏面図、第６図はＢ−イを示す表
面図、第７図はＢ−ロを示す裏面図、第８図はＣ
−ロを示す表面図、第９図は同じく裏面図である
。１……基板、２……円板、３，３′……地図、
４……経線、６……標準時区域、８……時刻目盛
。 The drawings show an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a back view, FIG. 3 is a side view, and FIGS. 4 to 9 are plan views or back views of important parts showing measurement examples. In the figures, Fig. 4 is a front view showing A-i, Fig. 5 is a back view showing A-b, Fig. 6 is a front view showing B-i, and Fig. 7 is a back view showing B-b. , Figure 8 is C
-B is a front view showing B, and FIG. 9 is a back view as well. 1... Board, 2... Disk, 3, 3'... Map,
4...Meridian, 6...Standard time zone, 8...Time scale.

Claims

[Claims for Utility Model Registration] 1. A disc 2 rotatably attached to a substrate 1;
A map 3 centered on the pole displayed on the disk 2,
Meridian lines 4 are arranged radially every 15 degrees from the pole, which is the center of map 3, and pass through Greenwich.
and a time scale 8 displayed on a substrate 1 around a disk 2 at equal intervals from 0 to 23 counterclockwise as seen from the North Pole. 2 Display the standard time zone 6 of each region on the map 3,
2. The date and time measuring instrument according to claim 1, wherein the time difference is shown with respect to the standard time of the reference region as 0. 3 Discs 2 are attached to the front and back of the substrate 1 so as to be able to rotate in synch, and maps 3 and 3' of the northern and southern hemispheres centered on the North Pole and the South Pole are displayed on each disc 2, with the meridians 4 aligned. Also, the substrate 1 around the disk 2
3. The date and time measuring instrument according to claim 1 or 2, wherein the front and back sides 0 are made to coincide with each other, and time scales 8 from 0 to 23 are displayed at equal intervals counterclockwise on the northern hemisphere side and clockwise on the southern hemisphere side.