JPH0528541Y2 - - Google Patents
Info
- Publication number
- JPH0528541Y2 JPH0528541Y2 JP1990009481U JP948190U JPH0528541Y2 JP H0528541 Y2 JPH0528541 Y2 JP H0528541Y2 JP 1990009481 U JP1990009481 U JP 1990009481U JP 948190 U JP948190 U JP 948190U JP H0528541 Y2 JPH0528541 Y2 JP H0528541Y2
- Authority
- JP
- Japan
- Prior art keywords
- chevron
- moon
- window
- moon phase
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、月齢表示をする時計の月齢表示用文
字板に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a moon phase display dial for a watch that displays the moon phase.
月齢は新月の時刻から数えて、ある日の正午ま
での時間を日数の単位に表わしたもので、新月か
ら新月までを約29.5日で循環する。
Moon phase is the time in days counted from the time of the new moon until noon on a given day, and cycles from new moon to new moon in about 29.5 days.
そのため歯数59枚の月齢車に印刷した２つの円
と文字板の窓を形成する２つの山の組合せで月の
満ち欠けを表示している。 Therefore, the phases of the moon are indicated by a combination of two circles printed on the 59-tooth moon phase wheel and two peaks that form the window on the dial.
従つてこの表示方式に用いる月齢車は２ケ月で
１回転している。 Therefore, the moon phase wheel used in this display method rotates once every two months.
従来の月齢表示は第１図に示すように、文字板
１にあいた窓２の左の山形２ａと右の山形２ｂは
新月（月齢：０）の時の円ＡとＢの中心を結ぶ線
Ｘ上にある軸心４３ａを通り、線Ｘに直交する線
Ｙに対して対称位置にあり、かつ山形２ａと２ｂ
（R1とR2を結ぶ形状）は一つの円弧で形成されて
いた。 In the conventional moon phase display, as shown in Figure 1, the left chevron 2a and right chevron 2b of the window 2 on the dial 1 are lines connecting the centers of circles A and B at the time of a new moon (moon phase: 0). Passing through the axis 43a on X, located symmetrically with respect to the line Y perpendicular to the line X, and with chevrons 2a and 2b
(The shape connecting R 1 and R 2 ) was formed by one circular arc.
この場合に山形２ａの形状を決定するには図に
示すように円Ａで新月を表示する時と月齢表示が
円ＡからＢに切替わり、円Ｂ In this case, to determine the shape of chevron 2a, as shown in the figure, when the new moon is displayed in circle A, the moon phase display switches from circle A to B, and when circle B
Claims (1)
側及び他方の側にそれぞれに円弧により設けられ
た山形部と、月齢車の回転中心を横切る線上で回
転中心に対して対称位置の前記月齢車の表面に印
刷され月を表示する２つの円との組み合わせによ
り月齢表示を行なう時計の月齢表示用文字板にお
いて、前記山形部は前記文字板の前記窓の中央か
ら一方の側に設けられ複数以上の円弧により形成
された第１の山形部と、前記窓の中央から他方の
側に設けられ複数以上の円弧により形成された第
２山形部を有し、前記第１の山形部と前記第２の
山形部とが同時に月齢車表面上の２つの前記円が
前記各々の山形部より前記窓側に突出しないよう
非対称な異なる円弧形状で形成されており、前記
月齢車の表面には、凹入状の印刷面と、その内外
周部に設けた肉厚状の段差部を設けると共に、当
該月齢車の外周歯部に噛合自在の躍制部を設けて
なることを特徴とする時計の月齢表示用文字板。 A chevron is provided in the form of an arc on one side and the other side from the center of the window formed by a hole in the dial, and the moon phase is located at a symmetrical position with respect to the rotation center on a line that crosses the rotation center of the moon phase wheel. In a dial plate for displaying the moon phase of a watch that displays the phase of the moon by combining two circles printed on the surface of a car and displaying the month, the chevron portion is provided on one side from the center of the window of the dial plate, and the plurality of a first chevron formed by the above circular arc; and a second chevron formed from a plurality of circular arcs provided on the other side from the center of the window; The second chevron portion is formed in an asymmetrical different arcuate shape so that the two circles on the surface of the lunar wheel do not protrude toward the window from the respective angular portions, and the surface of the lunar wheel is formed with a recess. A moon phase display for a watch, characterized in that it has a printed surface of the shape of a shape, a thick stepped portion on the inner and outer peripheries thereof, and a jump portion that can freely engage with the outer teeth of the moon phase wheel. Dial board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990009481U JPH0528541Y2 (en) | 1990-02-01 | 1990-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990009481U JPH0528541Y2 (en) | 1990-02-01 | 1990-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02105186U JPH02105186U (en) | 1990-08-21 |
| JPH0528541Y2 true JPH0528541Y2 (en) | 1993-07-22 |
Family
ID=31216261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990009481U Expired - Lifetime JPH0528541Y2 (en) | 1990-02-01 | 1990-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528541Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6880858B2 (en) * | 2017-03-14 | 2021-06-02 | セイコーエプソン株式会社 | clock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601593B2 (en) * | 1979-05-01 | 1985-01-16 | リズム時計工業株式会社 | Guideline setting display mechanism of digital guideline clock |
| JPS649025U (en) * | 1987-07-06 | 1989-01-18 |
-
1990
- 1990-02-01 JP JP1990009481U patent/JPH0528541Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02105186U (en) | 1990-08-21 |
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