JPH0442793Y2

JPH0442793Y2 -

Info

Publication number: JPH0442793Y2
Application number: JP4798387U
Authority: JP
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1992-10-09
Also published as: JPS63156092U

Description

【考案の詳細な説明】（産業上の利用分野）この考案は、時計の時報装置の関するものであ
る。[Detailed description of the invention] (Field of industrial application) This invention relates to a time signal device for a clock.

（従来の技術）時報の音量（消音を含む）調整装置として種々
の提案がある。例えば、実開昭56−72286号、
実開昭56−88178号、特開昭58−71480号等で
あつて、はセンサーを利用して明暗により時報
の鳴り時刻を制限するもの、はカウンタを利用
して時報の鳴り時刻を制御するもの、は摺動接
点を使つて時報の鳴り時刻を制御するものであ
る。(Prior Art) There are various proposals as a time signal volume adjustment device (including muting). For example, Utility Model Application No. 56-72286,
Utility Model Application Publication No. 56-88178, Japanese Patent Application Publication No. 58-71480, etc., use a sensor to limit the time the time signal sounds based on brightness and darkness, and use a counter to control the time the time signal sounds. This is a device that uses sliding contacts to control the time when a time signal sounds.

（考案が解決しようとする問題点）しかし、に依れば時刻に関係せず明暗によつ
て時報の音量が調整されるため、例えば夜中に電
燈を付けておいた場合に時報が発せられて近所迷
惑な事態を生じる。そしてに依れば回路構成が
複雑であるという製作上の問題に加え、昼間は必
ず鳴るという結果を生じ、例えば仕事場において
ブラインドを降しているにも拘らず、日曜日の昼
間にも時報が発せられ消費電力に無駄を生じる。
また、に依れば、部品点数が多いという製作上
の問題に加え、上記と同様、消費電力の無駄が
ある。(Problem that the invention aims to solve) However, according to the method, the volume of the time signal is adjusted depending on the light and darkness, regardless of the time of day, so for example, if you leave a light on in the middle of the night, the time signal will not be emitted. Causing a nuisance to the neighborhood. In addition to the manufacturing problem of a complicated circuit configuration, this also results in the alarm always ringing during the day, such as when the time signal does not emit even during the daytime on Sunday, even though the blinds are down at work. This results in wasted power consumption.
Furthermore, in addition to the production problem of a large number of parts, there is also the same waste of power consumption as described above.

（問題点を解決するための手段）本考案は上記問題点を解決する時刻の時報装置
を提供するもくてきでなされたものであり、下記
技術手段を採用する。(Means for Solving the Problems) The present invention has been devised to provide a time signal device that solves the above problems, and employs the following technical means.

すなわち、文字板に付設された光センサと、該
センサの前面側で文字板上に固着された固定偏光
板と、該固定偏光板の全面側で48時間車に固着さ
れた回転偏光板とを具備し、前記両偏光板を通過
した光の光量を検知して時報の音量を制御するこ
とを、その特徴とする。 That is, an optical sensor attached to the dial, a fixed polarizing plate fixed to the dial on the front side of the sensor, and a rotating polarizing plate fixed to the car for 48 hours on the front side of the fixed polarizing plate. It is characterized in that the volume of the time signal is controlled by detecting the amount of light that has passed through both the polarizing plates.

なお、48時間車は時計論列によつて連動する周
知構造物であり、音量とは消音を含む概念であ
る。 The 48-hour car is a well-known structure that is linked by a clock train, and volume is a concept that includes muting.

（作用）上記構成に依れば、外部の光が回転偏光板を通
過し、光センサの前面には固定偏光板が存し、両
偏光板の位相によつて光センサに到達する光量が
決定されることになる。そして上記位相は、回転
偏光板が48時間車に固着されているゆえに時刻に
よつて変化し、この結果、センサに到る光量は、
外部の明るさと時刻という二つの要因によつて決
定されることになる。(Function) According to the above configuration, external light passes through the rotating polarizing plate, a fixed polarizing plate exists in front of the optical sensor, and the amount of light reaching the optical sensor is determined by the phase of both polarizing plates. will be done. The above phase changes depending on the time because the rotating polarizing plate is fixed to the car for 48 hours, and as a result, the amount of light reaching the sensor is
It is determined by two factors: external brightness and time of day.

（実施例）第１図は本考案の一実施例を示す断面図で、１
は時計論列（図示せず）に連動する48時間車、２
は文字板を示し、この文字板２には光センサ３が
付設されており、この光センサ３には、光センサ
３の受光量に応じて時報装置５を駆動する制御回
路４が接続されている。(Example) Figure 1 is a sectional view showing an example of the present invention.
is a 48-hour car linked to a clock train (not shown), 2
indicates a dial, and an optical sensor 3 is attached to the dial 2. A control circuit 4 is connected to the optical sensor 3, which drives a time signal device 5 according to the amount of light received by the optical sensor 3. There is.

６は上記光センサ３の前面において文字板２に
固着された固定偏光板、そして７は固定偏光板６
の前面側において48時間車１に固着された回転偏
光板である。 6 is a fixed polarizing plate fixed to the dial 2 in front of the optical sensor 3, and 7 is a fixed polarizing plate 6.
This is a rotating polarizing plate fixed to the car 1 for 48 hours on the front side of the car.

そして上記両偏光板６，７は一定時刻において
一定の位相を有するように設定される。 Both polarizing plates 6 and 7 are set to have a constant phase at a constant time.

第２図は、両偏光板６，７の位相関係を示す図
面で、例えば昼の12時において縦方向のＡ列の位
相に設定しておけば、48時間車１に同行して回転
偏光板７が90°回転した夜の12時には、Ｂ列のよ
うに、両偏光板６，７の相が直交した位相とな
り、両偏光板６，７を通過する光量が少なくな
る。そして、この際に例えば光が灯されても、直
交した相の固定偏光板６によつて光の通過が阻止
され、光センサ３は受光しない。また、休日等に
おける仕事場ではブラインドを降しておくのが常
であり、この場合には、昼の12時であつても光セ
ンサ３に到る光の光量は少なく、時報発生装置４
は作動しない。勿論光センサ３の感度設定は、使
用状況により種々変更できるものである。 FIG. 2 is a diagram showing the phase relationship between both polarizing plates 6 and 7. For example, if the phase is set to the vertical A row at 12:00 noon, the rotating polarizing plate will accompany the car 1 for 48 hours. At 12 o'clock at night when the polarizer 7 is rotated by 90 degrees, the phases of the polarizing plates 6 and 7 are orthogonal to each other, as in row B, and the amount of light passing through the polarizing plates 6 and 7 is reduced. At this time, for example, even if light is turned on, the fixed polarizing plates 6 having orthogonal phases prevent the light from passing through, and the optical sensor 3 does not receive the light. In addition, it is common to keep the blinds down at work on holidays, etc., and in this case, even at 12:00 noon, the amount of light reaching the optical sensor 3 is small, and the time signal generator 4
doesn't work. Of course, the sensitivity setting of the optical sensor 3 can be changed in various ways depending on usage conditions.

（効果）以上説明したように本考案は極めて簡単な構成
であつて製作容易であり、本考案に依れば、明暗
という要素と時刻という要素の２つが重合されて
いて、無駄な電力消耗が防止され、且つ、不慮の
鳴音発生が阻止できる。(Effects) As explained above, the present invention has an extremely simple structure and is easy to manufacture.According to the present invention, the two elements of light and darkness and time are combined, and unnecessary power consumption is avoided. It is possible to prevent the occurrence of unexpected noise.

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す断面図、第２
図は両偏光板の位相関係説明図である。１……48時間車、２……文字板、３……光セン
サ、６……固定偏光板、７……回転偏光板。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is an explanatory diagram of the phase relationship between both polarizing plates. 1... 48 hour car, 2... dial, 3... light sensor, 6... fixed polarizing plate, 7... rotating polarizing plate.

Claims

[Scope of utility model registration request]

It is equipped with an optical sensor attached to the dial, a fixed polarizing plate fixed to the dial on the front side of the sensor, and a rotating polarizing plate fixed to the car for 48 hours on the front side of the fixed polarizing plate. A time signal device for a watch, characterized in that the volume of the time signal is controlled by detecting the amount of light that has passed through both the polarizing plates.