JPS635038Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案はアナログ表示式の目覚時計の目安検出
装置の改良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a reference detection device for an analog display type alarm clock.

従来、12時間に１回転する時針車と、１時間に
１回転する分針車との各々に対応させた検出車と
の間に設けた突起と溝によるカム機構の落込動作
により目安検出スイツチを作動させ、ブザー等の
電気報音装置を高精度で作動させる目安装置は、
例えば、実公昭46−3263号公報や特開昭53−
118165号公報などにより公知である。時および分
検出車のカム部の落込動作を検出してスイツチを
作動させる従来の検出レバーの形状は、一般的に
は分検出用の腕部と時検出用の腕部とが一体的で
二叉状に形成されており、この二叉の腕部の間に
分針車と分検出車または時針車と分検出車が配置
され、各車と腕部とが平面的に重なる関係となつ
ていると共に、時針車や分針車には指針を取付け
るパイプ部が一体的に形成されている。また、時
および分検出を行なうものは、時・分針車や両検
出車などの各車の位相関係が一定となるよう組立
を行なう必要があり、輪列を支持するケースに対
して各車の位相関係を保ちながら順次時計輪列の
軸方向に組立てる必要がある。 Conventionally, the guideline detection switch was activated by the falling motion of a cam mechanism using a protrusion and groove provided between detection wheels that corresponded to the hour hand wheel, which rotates once every 12 hours, and the minute hand wheel, which rotates once every hour. The reference device for operating electric sound alarm devices such as buzzers with high precision is
For example, Utility Model Publication No. 46-3263 and JP-A-53-
It is publicly known from Publication No. 118165 and the like. The shape of the conventional detection lever that detects the falling motion of the cam part of the hour and minute detection wheel to operate the switch is generally two-piece, with an arm part for minute detection and an arm part for hour detection. It is formed in a forked shape, and a minute wheel and a minute detection wheel or an hour hand and a minute detection wheel are arranged between the two forked arms, and each wheel and the arm overlap in a planar relationship. In addition, a pipe portion to which a pointer is attached is integrally formed on the hour hand wheel and the minute hand wheel. In addition, devices that detect hours and minutes must be assembled so that the phase relationship between each wheel, such as the hour and minute hand wheel and both detection wheels, is constant. It is necessary to assemble them sequentially in the axial direction of the clock train while maintaining the phase relationship.

従つて、従来の検出レバーによる高精度目安装
置は、二叉の腕部の間に車が配置されているため
各車および検出レバーを真上から投入して組立て
ることが不可能で、しかも時・分針車はパイプ部
を有しているので組立性が悪く、殊に自動組立機
を使用した自動組立を行なうときに障害となると
いう欠点を有している。また、上記欠点を改良す
るため検出レバーを分割することは容易であるが
構成部品も多くなりコストの増大となり好ましく
ない。 Therefore, in the conventional high-accuracy guide device using a detection lever, since the wheel is placed between two pronged arms, it is impossible to assemble each wheel and the detection lever by inserting them from directly above, and moreover, it is time-consuming. - Since the minute wheel has a pipe portion, it is difficult to assemble, and has the disadvantage that it becomes an obstacle especially when performing automatic assembly using an automatic assembly machine. Further, although it is easy to separate the detection lever in order to improve the above-mentioned drawbacks, it is not preferable because the number of components increases and the cost increases.

そこで本考案は上記の如き欠点を解決した目覚
時計の目安検出装置を提案するものである。 Therefore, the present invention proposes a reference detection device for an alarm clock that solves the above-mentioned drawbacks.

本考案は、上記目的を達成するために、時針車
と分針車の各々に対応させた検出車との間に設け
た突起と溝によるカム機構の位相が合致したこと
を検出して報時等を行なう目安装置において、下
ケース上に、上記時検出車、上記時針車、上記分
検出車、上記分針車をこの順に配置し、上記下ケ
ースと上記時検出車間に、上記時検出車を上記時
針車側に付勢するように弾発しかつ固定接片と接
離可能である可動接片を配置し、上記時針車と上
記分検出車間に、上記分針車が上方より貫通可能
な穴部および上記可動接片に上方より係合可能で
ある係合部を有するとともに上記分検出車が上方
より当接する検出レバーを配置し、上記下ケース
に、上記検出レバーを上方より組込み可能でしか
も揺動可能に支持する支持部を形成し、これによ
り各構成部品を上方より投入組込みできるように
したことを特徴とするものである。 In order to achieve the above object, the present invention detects that the phases of the cam mechanism are matched by the protrusions and grooves provided between the detection wheels corresponding to the hour hand wheel and the minute hand wheel. In the reference device for performing this, the hour detection wheel, the hour hand wheel, the minute detection wheel, and the minute hand wheel are arranged in this order on the lower case, and the hour detection wheel is placed between the lower case and the hour detection wheel. A movable contact piece is arranged so as to be biased toward the hour hand wheel side and is capable of coming into contact with and separating from the fixed contact piece, and a hole portion through which the minute hand wheel can pass from above is provided between the hour hand wheel and the minute detection wheel. The movable contact piece has an engaging part that can be engaged from above, and a detection lever that the detection wheel abuts from above is arranged, and the detection lever can be incorporated into the lower case from above and is swingable. The present invention is characterized in that a supporting portion is formed to support the components, thereby allowing each component to be inserted and assembled from above.

以下図面に示す実施例について説明する。 The embodiments shown in the drawings will be described below.

ケース１はプラスチツク材料により成形されそ
の左端にはネジ穴を有するボス１ａ、下面には後
述する時針車１２および分目安表示車２０を回転
支持するための穴と、日ノ裏車１１を回転支持す
る軸１ｂと、目安セツト車１８を回転支持する軸
１ｃと、検出レバー２２を回転支持するＵ溝を有
した２つの支持部１ｄとが形成されている。中板
２もプラスチツク材料により成形され、後述する
中間軸７を回転支持する穴と、日ノ裏車１１を回
転支持する軸２ａと、分目安表示車２０を回転支
持する軸２ｂと、分針車９を回転支持し中央に秒
針車の軸６を貫通させる穴を有するボス２ｃと、
ケースの支持部１ｄと共に検出レバー２２を回転
支持するボス２ｄと、目安セツト車１８の軸部を
貫通させる穴とが形成されている。３はカバー
で、これもプラスチツク材料で形成され、中間軸
７、秒針車の軸６、目安セツト車１８の軸を回転
支持する穴が形成されている。そして上記中板２
およびカバー３は、上記ケースのボス１ａの上に
置かれ、夫々はネジ４により固定される。 The case 1 is molded from a plastic material, and has a boss 1a having a screw hole at its left end, and holes for rotatably supporting an hour wheel 12 and a minute indicator wheel 20, which will be described later, on the lower surface, as well as a hole for rotatably supporting a day wheel 11. A shaft 1b that rotatably supports the reference setting wheel 18, and two support portions 1d having U grooves that rotatably support the detection lever 22 are formed. The middle plate 2 is also molded from a plastic material, and has a hole that rotatably supports an intermediate shaft 7, which will be described later, a shaft 2a that rotatably supports the day wheel 11, a shaft 2b that rotatably supports the minute indicator wheel 20, and a minute hand wheel. a boss 2c that rotatably supports the second hand wheel 9 and has a hole in the center through which the second hand wheel shaft 6 passes;
A boss 2d that rotatably supports the detection lever 22 together with the support portion 1d of the case, and a hole through which the shaft of the reference setting wheel 18 passes are formed. Reference numeral 3 denotes a cover, which is also made of plastic material, and has holes for rotatably supporting the intermediate shaft 7, the shaft 6 of the second hand wheel, and the shaft of the reference setting wheel 18. And the above middle plate 2
The cover 3 is placed on the boss 1a of the case, and each is fixed with a screw 4.

次に時刻表示のための歯車列の構成について説
明する。 Next, the configuration of the gear train for time display will be explained.

秒針車５はピニオン５ａとが一体に形成され、
軸６に固定され、この軸６はカバー３により回転
支持されると共に、他端は分針車のパイプ９ｂを
貫通しながら回転支持され、その先端には秒針１
４が取付けられる。そして、上記秒針車５は図示
しないモーターにより駆動される。中間軸７は、
分針車９と噛合うピニオン７ａと、秒針車のピニ
オン５ａを噛み合う中間車８を回転支持する溝部
７ｂと、カバー３を貫通して時刻修正を行うツマ
ミ７ｃとが一体に形成され、中板２とカバー３に
より回転支持される。また、中間車８は中間軸７
に対して定められたスリツプトルクで回転するよ
う周知の方法でスリツプ結合されている。上記中
間軸のピニオン７ａと噛み合う分針車９は、ピニ
オン９ａと、パイプ９ｂと、後述するカム溝９ｃ
とが一体形成され、上記パイプ９ｂの上端は中板
のボス２ｃにより回転支持され、他端は後述する
時針車のパイプ１２ａにより回転支持されながら
これを貫通し、その先端に分針１０が取付けられ
る。上記分針車のピニオン９ａと噛み合う日ノ裏
車１１はピニオン１１ａと共に一体に形成され、
ケースの軸１ｂと中板の軸２ａにより回転支持さ
れる。上記ピニオン１１ａと噛み合う時針車１２
は、パイプ１２ａと後述するカム溝１２ｂとが一
体に形成され、そのパイプ１２ａの内径は分針車
のパイプ９ｂを回転支持すると共に、外径はケー
ス１の穴により回転支持され、先端には時針１３
が取付けられる。 The second hand wheel 5 is integrally formed with a pinion 5a,
It is fixed to a shaft 6, and this shaft 6 is rotatably supported by the cover 3, and the other end is rotatably supported while passing through the pipe 9b of the minute hand wheel, and the second hand 1 is attached to the tip of the shaft 6.
4 is installed. The second hand wheel 5 is driven by a motor (not shown). The intermediate shaft 7 is
A pinion 7a that meshes with the minute wheel 9, a groove 7b that rotatably supports the intermediate wheel 8 that meshes with the pinion 5a of the second hand wheel, and a knob 7c that penetrates the cover 3 and adjusts the time are integrally formed, and the intermediate plate 2 and is rotatably supported by the cover 3. Further, the intermediate wheel 8 is connected to the intermediate shaft 7.
They are slip-coupled in a known manner so as to rotate with a slip torque determined for the shaft. The minute wheel 9 that meshes with the pinion 7a of the intermediate shaft includes a pinion 9a, a pipe 9b, and a cam groove 9c to be described later.
The upper end of the pipe 9b is rotatably supported by a boss 2c on the middle plate, and the other end is rotatably supported by a pipe 12a of an hour wheel, which will be described later, passing through this, and a minute hand 10 is attached to its tip. . The hour wheel 11 that meshes with the pinion 9a of the minute wheel is integrally formed with the pinion 11a,
It is rotatably supported by a shaft 1b of the case and a shaft 2a of the middle plate. Hour wheel 12 meshing with the pinion 11a
A pipe 12a and a cam groove 12b, which will be described later, are integrally formed, and the inner diameter of the pipe 12a rotatably supports the pipe 9b of the minute hand wheel, and the outer diameter rotatably supports the pipe 9b of the minute hand wheel, and the hour hand is attached to the tip of the pipe 12a. 13
is installed.

次に目安機構の歯車列について説明する。 Next, the gear train of the guide mechanism will be explained.

分検出車１６は後述する突起１６ａと共に一体
に形成され、その中心は分針車のパイプ９ｂによ
り回転支持され、分針車９と時針車１２との間に
配置される。また時検出車１７は後述する突起１
７ａと共に一体に形成され、時針車１２の下に配
置され、その中心は時針車のパイプ１２ａに回転
支持される。１８は目安セツト車で、分検出車１
６および後述する分目安表示車２０と噛み合う歯
車１８ａと、時検出車１７と噛み合うピニオン１
８ｂと、中板２およびカバー３を貫通した先端に
目安時刻をセツトするためのツマミ１８ｃが一体
に形成され、ケースの軸１ｃとカバー３の穴によ
り回転支持される。上記目安セツト車の歯車１８
ａと噛み合う分目安表示車２０は、分単位の目安
時刻マーク２０ａ（例えば00，05，……55）が表
示されており、時目安表示車２１と噛み合い間欠
伝達をする間欠歯２０ｂと、クリツク歯車２０ｃ
と共に一体に形成されており、ケース１の穴と中
板の軸２ｂにより回転支持され、後述する固定接
片２４と一体に設けられたクリツクバネ２４ａと
上記クリツク歯車２０ｃとにより、上記マーク２
０ａが所定の位置にクリツクストツプするよう構
成されている。更に、時目安表示車２１は時単位
の目安時刻マーク（例えば１，２，…12）が表示
され、分目安表示車の間欠歯２０ｂにより間欠回
転をする。次に目安時刻を検出するための検出ス
イツチの構造について説明する。前述した分針車
９にはカム溝９ｃが形成され、分検出車１６には
突起１６ａがカム溝９ｃに対応するように設けら
れ、１時間に１回だけ所定の時間の間、カム溝９
ｃと突起１６ａの位相が合致して分検出車１６が
軸方向に移動可能となる。また、これと同様に時
針車１２にもカム溝１２ｂが形成され、時検出車
１７にはカム溝１２ｂに対応するよう突起１７ａ
が設けられ、12時間に１回だけ所定の時間の間、
カム溝１２ｂと突起１７ａの位相が合致して時検
出車１７が軸方向に移動可能となるように目安検
出装置としては良く知られる２組のカム機構が構
成されており、分針車および時針車のカム溝９
ｃ，１２ｂと両検出車の突起１６ａ，１７ａの関
係は第４図の様になり、Ａは分検出車１６、Ｂは
時検出車１７の動作を示している。上記分検出車
１６の軸方向の移動を検出する検出レバー２２
は、分検出車１６と時針車１２の間に配置され、
ケースの支持部１ｄと中板のボス２ｄとにより回
転支持され、一端には後述する可動接片２３と接
する押エ部２２ａと、他端には後述する鳴止レバ
ーのピン２５ａと係合し、検出レバー２２の動き
規制するピン２２ｂとが一体に形成されている。
可動接片２３は弾性を有する導電材で形成され、
時目安車１７とケース１との間に配置され、可動
接片２３により時検出車１７および検出レバー２
２を介して分検出車１６を上方向へ移動させるよ
うにバネ摺性が与えられると共に、両検出車１
６，１７が上下方向へ移動した時に導電材で形成
された固定接片２４と接触し、スイツチを構成す
る接点部２３ａを有している。また固定接片２４
には、前述した分目安表示車のクリツク歯車２０
ｃと係合しクリツク作用をするクリツク片２４ａ
が一体に形成されている。更に、時針車のカム溝
１２ｂと時検出車の突起１７ａの位相が合致しな
い時には、可動接片２３のバネ力が検出レバー２
２を介して分検出車１６に作用しない関係となる
よう時検出車１７と分検出車１６の移動量が設定
されている。このため通常の時は分検出車の突起
１６ａと分針車のカム溝９ｃとのカム動作により
分針車９の回転負荷トルクが増加することはな
い。一方、鳴止めレバー２５は、ケース１に直線
的に移動可能なように支持され、検出レバーのピ
ン２２ｂと係合するピン２５ａを有しており、両
者のピンが係合するOFF位置と係合しないON位
置の２位置に操作可能で、OFF位置においては
検出レバー２２の回動が阻止される。また、電気
的報音装置を動作させる目覚回路は、可動接片２
３と固定接片２４とから成る検出スイツチと電源
ＥとブザーＢとが直列に接続されている。 The minute detection wheel 16 is integrally formed with a protrusion 16a, which will be described later, and its center is rotatably supported by a pipe 9b of the minute wheel, and is disposed between the minute wheel 9 and the hour wheel 12. In addition, the hour detection wheel 17 is a protrusion 1 which will be described later.
It is formed integrally with the hour hand wheel 7a and is disposed below the hour hand wheel 12, and its center is rotatably supported by the hour hand wheel's pipe 12a. 18 is the standard set car, minute detection car 1
6, a gear 18a that meshes with a minute indication wheel 20, which will be described later, and a pinion 1 that meshes with an hour detection wheel 17.
8b and a knob 18c for setting the reference time is integrally formed at the tip passing through the middle plate 2 and the cover 3, and is rotatably supported by the shaft 1c of the case and a hole in the cover 3. Gear 18 of the guideline setting wheel above
The minute indicator wheel 20 that meshes with the hour indicator wheel 20 has a minute reference time mark 20a (for example, 00, 05,...55) displayed, and has an intermittent tooth 20b that meshes with the hour indicator wheel 21 and performs intermittent transmission. gear 20c
The marks 2
0a is configured to be click-stopped at a predetermined position. Further, the hour indication wheel 21 displays indication time marks (for example, 1, 2, . . . 12) in units of hours, and is rotated intermittently by the intermittent teeth 20b of the minute indication wheel. Next, the structure of the detection switch for detecting the reference time will be explained. The aforementioned minute wheel 9 is formed with a cam groove 9c, and the minute detection wheel 16 is provided with a protrusion 16a corresponding to the cam groove 9c.
c and the protrusion 16a match in phase, and the minute detection wheel 16 becomes movable in the axial direction. Similarly, a cam groove 12b is formed on the hour wheel 12, and a protrusion 17a is formed on the hour detection wheel 17 to correspond to the cam groove 12b.
is established, and for a specified period of time only once every 12 hours.
Two sets of cam mechanisms, well known as a guideline detection device, are constructed so that the phases of the cam groove 12b and the protrusion 17a match and the hour detection wheel 17 can move in the axial direction. cam groove 9
The relationship between c and 12b and the protrusions 16a and 17a of both detection wheels is as shown in FIG. A detection lever 22 that detects the axial movement of the minute detection wheel 16
is arranged between the minute detection wheel 16 and the hour wheel 12,
It is rotatably supported by the support part 1d of the case and the boss 2d of the middle plate, and has a pressing part 22a at one end that contacts a movable contact piece 23, which will be described later, and a pusher part 22a, which will be described later, which engages with a pin 25a of a squealing lever, which will be described later. , and a pin 22b that restricts the movement of the detection lever 22 are integrally formed.
The movable contact piece 23 is made of an elastic conductive material,
The hour indicator wheel 17 and the detection lever 2 are arranged between the hour indicator wheel 17 and the case 1, and the movable contact piece 23 connects the hour indicator wheel 17 and the detection lever 2.
Spring sliding properties are provided so as to move the minute detection wheel 16 upward through the minute detection wheel 1, and both detection wheels 1
6 and 17 have a contact portion 23a that comes into contact with a fixed contact piece 24 made of a conductive material to constitute a switch when moved in the vertical direction. Also, the fixed contact piece 24
is the click gear 20 of the minute indicator wheel mentioned above.
A click piece 24a that engages with c and performs a click action.
are integrally formed. Furthermore, when the cam groove 12b of the hour hand wheel and the protrusion 17a of the hour detection wheel do not match in phase, the spring force of the movable contact piece 23 is applied to the detection lever 2.
The amount of movement of the hour detecting wheel 17 and the minute detecting wheel 16 is set so that they do not act on the minute detecting wheel 16 through 2. Therefore, in normal times, the rotational load torque of the minute wheel 9 does not increase due to the cam action between the protrusion 16a of the minute detection wheel and the cam groove 9c of the minute wheel. On the other hand, the anti-squeal lever 25 is supported by the case 1 so as to be linearly movable, and has a pin 25a that engages with the pin 22b of the detection lever. The detection lever 22 can be operated in two positions, including the ON position, where the detection lever 22 does not match, and the detection lever 22 is prevented from rotating in the OFF position. In addition, the alarm circuit for operating the electric sound alarm device includes a movable contact piece 2
3 and a fixed contact piece 24, a power source E, and a buzzer B are connected in series.

以上の構成において組立方法は、先ずケース１
に可動接片２３と固定接片２４のスイツチ部と鳴
止レバー２５、分目安表示車２０、時目安表示車
２１を組立てる。次に時検出車の突起１７ａと時
針車のカム溝１２ｂが所定の位相関係となるよう
両車１７，１２を組み立て、その上に検出レバー
２２をのせ、次に上述した時検出車１７と時針車
１２の位相を変えないよう目安セツト車１８と分
検出車１６を組立て、分検出車の突起１６ａと分
針車のカム溝９ｃが所定の位相関係となるよう分
針車９を組み立て、更に、上述した時、分の両方
の位相関係を変えないよう日ノ裏車１１、中板２
を組み立てることにより下輪列が組み立てられ
る。そして、秒針車５、中間車８、図示しないモ
ータ輪列、カバー３から成る上輪列が組み立てら
れる。更に、目安セツト車のツマミ１８ｃを廻し
て両目安表示車２０，２１の目安時刻マークを例
えば12時00分に設定した後、中間軸のツマミ７ｃ
を廻してブザーＢが鳴り始める状態で時針１３と
分針１０が12時00分となるよう取り付けられるも
のである。従つて、ケース内部の部品は順次上か
ら積み重ねる方向の組立てだけなので、組立が簡
単で、自動組立機での組み立てを行う場合も有利
である。この様に構成されたものにおいて以下そ
の作動を説明する。先ず目安セツト車のツマミ１
８ｃを回転させると、目安セツト車の歯車１８ａ
により分目安表示車２０が回転させられ、同表示
車の目安時刻マーク２０ａが順次クリツク作動に
応じて変化し、目安時刻マーク２０ａが55分から
00分へ、または、00分から55分に変わる時、分目
安表示車の間欠歯２０ｂにより時目安表示車２１
を12分の１回転させ時目安表示車２１の目安時刻
マークを１時間分変更させられる。この様にして
使用者は、上記目安時刻マークを変化させて希望
する目安時刻を設定する。一方、目安セツト車の
歯車１８ａは分検出車１６と噛み合つており、ま
た目安セツト車のピニオン１８ｂは時検出車１７
と噛み合つているので、上記ツマミ１８ｃが回さ
れると、両検出車１６，１７もまた変化される。
従つて上記目安時刻の設定に伴ない、分検出車の
突起１６ａおよび時検出車の突起１７ａの位相が
決定される。次に使用者は鳴止レバー２５を検出
レバーのピン２２ｂと鳴止レバーのピン２５ａと
が非係合状態となる様にON方向へ操作させる。
この時、分針車のカム溝９ｃと分検出車の突起１
６ａおよび時針車のカム溝１２ｂと時検出車の突
起１７ａの位相が合致していないので、時検出車
１７や検出レバーの押エ部２２ａに規制されて可
動接片２３と固定接片２４の接触が断たれブザー
Ｂは作動しない。 In the above configuration, the assembly method is first case 1.
Assemble the switch parts of the movable contact piece 23 and the fixed contact piece 24, the chirp lever 25, the minute indicator wheel 20, and the hour indicator wheel 21. Next, assemble the wheels 17 and 12 so that the protrusion 17a of the hour detection wheel and the cam groove 12b of the hour hand wheel have a predetermined phase relationship, place the detection lever 22 thereon, and then set the hour detection wheel 17 and the hour hand as described above. Assemble the reference set wheel 18 and the minute detection wheel 16 so as not to change the phase of the wheel 12, assemble the minute wheel 9 so that the protrusion 16a of the minute detection wheel and the cam groove 9c of the minute wheel have a predetermined phase relationship, and then assemble the minute wheel 9 as described above. In order not to change the phase relationship of both the hour and minute, the hinoura wheel 11 and the middle plate 2
The lower wheel train is assembled by assembling. Then, an upper wheel train consisting of the second hand wheel 5, the intermediate wheel 8, a motor train (not shown), and the cover 3 is assembled. Furthermore, after turning the knob 18c on the guide set car to set the guide time marks on both guide display cars 20 and 21 to, for example, 12:00, turn the knob 7c on the intermediate shaft.
It is installed so that the hour hand 13 and minute hand 10 indicate 12:00 when the buzzer B starts sounding by turning the dial. Therefore, the parts inside the case are simply assembled by stacking them one after the other from above, which makes assembly easy and advantageous when assembled using an automatic assembly machine. The operation of the device constructed in this way will be explained below. First, set car knob 1 as a guide.
When 8c is rotated, the guide setting wheel gear 18a
The minute indicator wheel 20 is rotated, and the indicator time mark 20a on the indicator wheel changes sequentially in accordance with the click operation, and the indicator time mark 20a changes from 55 minutes to 55 minutes.
When changing to 00 minutes or from 00 to 55 minutes, the hour indication wheel 21 is activated by the intermittent teeth 20b of the minute indication wheel.
By turning by one-twelfth of a turn, the reference time mark on the hour reference display wheel 21 can be changed by one hour. In this manner, the user changes the reference time mark to set the desired reference time. On the other hand, the gear 18a of the reference setting wheel is engaged with the minute detection wheel 16, and the pinion 18b of the reference setting wheel is engaged with the hour detection wheel 17.
Therefore, when the knob 18c is turned, both detection wheels 16 and 17 are also changed.
Accordingly, with the setting of the reference time, the phases of the minute detection wheel protrusion 16a and the hour detection wheel protrusion 17a are determined. Next, the user operates the sound stop lever 25 in the ON direction so that the pin 22b of the detection lever and the pin 25a of the sound stop lever are disengaged.
At this time, the cam groove 9c of the minute hand wheel and the protrusion 1 of the minute detection wheel
6a and the cam groove 12b of the hour hand wheel and the protrusion 17a of the hour detection wheel are not in phase with each other. Contact is broken and buzzer B does not operate.

この様な状態に時計を設定しておくと、時計の
時刻表示の歯車列はモーターにより駆動され、分
針車９は１時間に１回転、時針車１２は12時間に
１回転の速度で回転させられると共に、分針車の
カム溝９ｃと時針車のカム溝１２ｂも同時に回転
する。この時、分針車９と時針車１２は、夫々検
出車１６，１７に接しながら回転するので、両検
出車１６，１７は回転力を受けるが、この回転力
は分目安表示車のクリツク歯車２０ｃに作用する
クリツクバネ２４ａにより保持されているので、
両検出車１６，１７は設定された位相に停止続け
る。そして、分針車９が回転している間に、分針
車のカム溝９ｃと分検出車の突起１６ａは１時間
に１回位相が合致して分検出車１６は上方向へ移
動可能な状態となるが、時針車のカム溝１２ｂと
時検出車の突起１７ａの位相が合致していないた
め可動接片２３が時検出車１７に押えられてお
り、可動接片２３のバネ力は検出レバー２２に作
用せず、また可動接片２３と固定接片２４は接触
しない。 When the clock is set in this state, the gear train for the time display of the clock is driven by a motor, and the minute hand wheel 9 rotates once every hour, and the hour hand wheel 12 rotates once every 12 hours. At the same time, the cam groove 9c of the minute hand wheel and the cam groove 12b of the hour hand wheel also rotate at the same time. At this time, the minute hand wheel 9 and the hour hand wheel 12 rotate while contacting the detection wheels 16 and 17, respectively, so both detection wheels 16 and 17 receive rotational force, but this rotational force is applied to the click gear 20c of the minute indication wheel. Since it is held by the click spring 24a that acts on the
Both detection wheels 16 and 17 continue to stop at the set phase. While the minute wheel 9 is rotating, the cam groove 9c of the minute wheel and the protrusion 16a of the minute detection wheel match once every hour, and the minute detection wheel 16 is in a state where it can move upward. However, since the phases of the cam groove 12b of the hour hand wheel and the protrusion 17a of the hour detection wheel do not match, the movable contact piece 23 is pressed by the hour detection wheel 17, and the spring force of the movable contact piece 23 is applied to the detection lever 22. The movable contact piece 23 and the fixed contact piece 24 do not come into contact with each other.

そして、更に時間が経過すると、先ず時針車の
カム溝１２ｂと時検出車の突起１７ａの位相が合
致して時検出車１７は上方向へ移動可能な状態と
なるが、分針車のカム溝９ｃと分検出車の突起１
６ａの位相が合致していないため検出レバー２２
により可動接片２３が押えられており可動接片２
３と固定接片２４は接触しない。時針車のカム溝
１２ｂと時検出車の突起１６ａの位相が合致した
状態で時間が更に経過すると、分針車のカム溝９
ｃと分検出車の突起１６ａの位相が合致する。こ
れにより上記２組のカム機構の位相が合致したた
め可動接片２３のバネ力で時検出車１７が上方向
へ移動すると共に、検出レバーの押エ部２２ａが
可動接片２３に押され、第３図において検出レバ
ー２２が右回転して分検出車１６を上方へ移動
し、可動接片２３と固定接片２４は接触する。従
つて目覚回路の経路が導通されたのでブザーＢに
電流が流れ目覚音が発声させられる。そして上記
ブザーＢは分針車のカム溝９ｃと分検出車の突起
１６ａの位相が合致している間中鳴り続けるが、
その間に使用者が鳴止レバー２５をOFF方向へ
操作することにより、鳴止レバーのピン２５ａと
検出レバーのピン２２ｂが係合して検出レバー２
２を左方向へ回転させ、検出レバーの押エ部２２
ａで可動接片２３を押し下げ可動接片２３と固定
接片２４の接触を断つのでブザーＢが鳴り止み、
鳴止レバー２５がOFF位置ではこの状態が継続
される。また、OFFしない場合には、分針車の
カム溝９ｃに分検出車の突起１６ａの位相が合致
した状態から更に時間の経過と共に分針車９が回
転すると、前記カム溝９ｃに設けられた斜面と上
記突起１６ａにより分検出車１６が下方に押し下
げられ、これにより第３図において検出レバー２
２を左方向へ回転させ、検出レバーの押エ部２２
ａで可動接片２３を押し下げ可動接片２３と固定
接片２４の接触を断ちブザーＢの発声が停止す
る。尚、ブザーＢが鳴り続ける時間は、設計時に
分針車のカム溝９ｃの長さを選定することにより
通常は30分以内で自由に設定することができる。
更に、時針車のカム溝１２ｂの長さは、ブザーＢ
の鳴り時間に対して各部品の製作誤差やクリアラ
ンスによるガタ等を考慮し充分余裕を設け、時針
車のカム溝１２ｂと時検出車の突起１７ａが嵌合
している間に、分針車のカム溝９ｃと分検出車の
突起１６ａが嵌合を開始して終了するよう設定さ
れるものである。 Then, as time passes further, the phases of the cam groove 12b of the hour hand wheel and the protrusion 17a of the hour detection wheel first match, and the hour detection wheel 17 becomes able to move upward, but the cam groove 9c of the minute wheel and minute detection wheel protrusion 1
Since the phases of 6a do not match, the detection lever 22
The movable contact piece 23 is held down by the movable contact piece 2
3 and the fixed contact piece 24 do not contact each other. If time continues to pass with the cam groove 12b of the hour hand wheel and the protrusion 16a of the hour detection wheel in phase, the cam groove 12b of the minute wheel 9
c and the phase of the protrusion 16a of the minute detection wheel match. As a result, the phases of the two sets of cam mechanisms match, and the spring force of the movable contact piece 23 causes the hour detection wheel 17 to move upward, and the pushing part 22a of the detection lever is pushed by the movable contact piece 23, causing the second cam mechanism to move upward. In FIG. 3, the detection lever 22 rotates clockwise to move the minute detection wheel 16 upward, and the movable contact piece 23 and the fixed contact piece 24 come into contact. Therefore, since the path of the alarm circuit is made conductive, a current flows through the buzzer B and an alarm sound is emitted. The buzzer B continues to sound while the cam groove 9c of the minute hand wheel and the protrusion 16a of the minute detection wheel are in phase.
During this time, when the user operates the sound stop lever 25 in the OFF direction, the pin 25a of the sound stop lever and the pin 22b of the detection lever engage, and the detection lever 2
2 to the left, and press the detection lever pusher part 22.
Push down the movable contact piece 23 with a to break the contact between the movable contact piece 23 and the fixed contact piece 24, and the buzzer B will stop sounding.
This state continues when the sound stop lever 25 is in the OFF position. In addition, if the cam groove 9c of the minute wheel does not turn off, when the minute wheel 9 rotates as time passes from the state where the phase of the protrusion 16a of the minute detection wheel matches the cam groove 9c of the minute wheel, the slope formed in the cam groove 9c The minute detection wheel 16 is pushed down by the protrusion 16a, and as a result, the detection lever 2 in FIG.
2 to the left, and press the detection lever pusher part 22.
At step a, the movable contact piece 23 is pushed down to break the contact between the movable contact piece 23 and the fixed contact piece 24, and the buzzer B stops sounding. The time period during which the buzzer B continues to sound can be freely set, usually within 30 minutes, by selecting the length of the cam groove 9c of the minute hand wheel at the time of design.
Furthermore, the length of the cam groove 12b of the hour hand wheel is the same as that of the buzzer B.
A sufficient margin is provided for the ringing time in consideration of manufacturing errors of each part and backlash due to clearance, etc., and while the cam groove 12b of the hour hand wheel and the protrusion 17a of the hour detection wheel are engaged, the cam of the minute hand wheel is The fitting between the groove 9c and the projection 16a of the minute detection wheel starts and ends.

次に、分針１０および時針１３の修正時の作動
について説明する。 Next, the operation of the minute hand 10 and hour hand 13 during correction will be explained.

先ず、中間軸のツマミ７ｃを右または左に回わ
すと、ピニオン７ａにより分針車９を回転させ
る。この回転はモーターにより駆動される場合と
同様に日ノ裏車１１を介して時針車１２に伝達さ
れる。一方、中間軸７にスリツプ結合された中間
車８は秒針車のピニオン５ａと噛み合い、秒針車
５を回転させようとするが、秒針車５に連結され
るモーターの力が上記スリツプ結合部のスリツプ
トルクに勝るので、中間車８秒針車５は回転させ
られない。この様にツマミ７ｃを回わすことによ
り使用者は時刻を任意に合せることができる。 First, when the knob 7c on the intermediate shaft is turned to the right or left, the minute wheel 9 is rotated by the pinion 7a. This rotation is transmitted to the hour hand wheel 12 via the hour hand wheel 11 in the same way as when driven by a motor. On the other hand, the intermediate wheel 8 which is slip-coupled to the intermediate shaft 7 engages with the pinion 5a of the second hand wheel and attempts to rotate the second hand wheel 5, but the force of the motor connected to the second hand wheel 5 causes the slip of the slip coupling portion to slip. Since the torque is greater than that, the intermediate wheel 8 second hand wheel 5 cannot be rotated. By turning the knob 7c in this manner, the user can arbitrarily set the time.

尚、本考案の実施例では、検出レバーと係合お
よび非係合の２位置に操作可能な鳴止レバーで目
安装置をオンオフさせたが、目覚回路内に外部よ
り操作可能な開閉スイツチを設けてもよい。 In the embodiment of the present invention, the indicator device is turned on and off using a sounding lever that can be operated in two positions, engaging and disengaging from the detection lever, but an open/close switch that can be operated from the outside is provided in the alarm circuit. You can.

以上の様に本考案によれば、前述した欠点を改
善し、目安時刻精度を低下させることなく、時刻
表示および目安機構の歯車部品や検出スイツチ部
品等を単に積み重ねて行くだけで組立てることが
できるため、各歯車の位相合せも容易となり、簡
単な構造で組立性の優れた目安装置を提供するも
のである。 As described above, according to the present invention, the above-mentioned drawbacks are improved, and the gear parts of the time display and reference mechanism, the detection switch parts, etc. can be assembled by simply stacking them, without reducing the accuracy of the reference time. Therefore, the phase alignment of each gear becomes easy, and a reference device with a simple structure and excellent assemblability is provided.

【図面の簡単な説明】[Brief description of the drawings]

図面は本考案による一実施例を示すもので、第
１図は平面図、第２図と第３図は第１図の断面図
第４図は分検出車と時検出車の動作図を示す。 ９……分針車、１２……時針車、１６……分検
出車、１７……時検出車、１８……目安セツト
車、２２……検出レバー、２３……可動接片、２
４……固定接片。 The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view, Figs. 2 and 3 are cross-sectional views of Fig. 1, and Fig. 4 is an operational diagram of the minute detection wheel and hour detection wheel. . 9... Minute wheel, 12... Hour hand wheel, 16... Minute detection wheel, 17... Hour detection wheel, 18... Reference set wheel, 22... Detection lever, 23... Movable contact piece, 2
4...Fixed contact piece.

Claims (1)

【実用新案登録請求の範囲】 時針車１２と、この時針車と同軸に設けられた
時検出車１７と、上記時針車と上記時検出車との
一方に設けられた突起１７ａおよびその他方に設
けられた溝１２ｂによる第１カム機構と、上記時
針車と同軸に設けられた分針車９と、この分針車
と同軸に設けられた分検出車１６と、上記分針車
と上記分検出車との一方に設けられた突起１６ａ
およびその他方に設けられた溝９ｃによる第２カ
ム機構とからなり、上記両カム機構の突起と溝の
位相が合致したことを検出して報時等を行なう目
安装置において、 下ケース１上に、上記時検出車、上記時針車、
上記分検出車、上記分針車がこの順に配置してあ
り、 上記下ケースと上記時検出車間には、上記時検
出車を上記時針車側に付勢するように弾発しかつ
固定接片２４と接離可能である可動接片２３が配
置してあり、 上記時針車と上記分検出車間には、上記分針車
が上方より貫通可能な穴部および上記可動接片に
上方より係合可能である係合部２２ａを有すると
ともに上記分検出車が上方より当接する検出レバ
ー２２が配置してあり、 上記下ケースには、上記検出レバーを上方より
組込み可能でしかも揺動可能に支持する支持部１
ｄが形成してあり、 上記第１カム機構の位相が合致したときに上記
可動接片の作動を上記検出レバーの上記係合部で
規制し、この状態で上記第２カム機構が合致した
ときに上記可動接片の規制を解除するよう構成し
てある ことを特徴とする時計の目安装置。[Scope of Claim for Utility Model Registration] An hour hand wheel 12, a time detection wheel 17 provided coaxially with the hour hand wheel, a protrusion 17a provided on one of the hour hand wheel and the time detection wheel, and a protrusion 17a provided on the other. a first cam mechanism with a groove 12b, a minute wheel 9 provided coaxially with the hour hand wheel, a minute detection wheel 16 provided coaxially with the minute wheel, and a first cam mechanism with a groove 12b provided therein; Protrusion 16a provided on one side
and a second cam mechanism formed by a groove 9c provided on the other side, and detects that the phases of the protrusions and grooves of the two cam mechanisms match and makes a time signal, etc., on the lower case 1. , the above hour detection wheel, the above hour hand wheel,
The minute detection wheel and the minute hand wheel are arranged in this order, and between the lower case and the hour detection wheel there is a fixed contact piece 24 which is elastic and has a fixed contact piece 24 so as to bias the hour detection wheel toward the hour wheel. A movable contact piece 23 that can be moved toward and away from the hour hand wheel is disposed between the hour hand wheel and the minute detection wheel, and the minute hand wheel can engage with the hole portion through which the minute hand wheel can pass from above and the movable contact piece from above. A detection lever 22 having an engaging portion 22a and to which the detection wheel abuts from above is disposed, and the lower case includes a support portion 1 that allows the detection lever to be incorporated from above and is swingably supported.
d is formed, and when the phases of the first cam mechanism match, the operation of the movable contact piece is regulated by the engaging part of the detection lever, and in this state, when the second cam mechanism matches. A timepiece indicator device, characterized in that it is configured to release the restriction on the movable contact piece.