JPS626192B2 - - Google Patents
Info
- Publication number
- JPS626192B2 JPS626192B2 JP15670181A JP15670181A JPS626192B2 JP S626192 B2 JPS626192 B2 JP S626192B2 JP 15670181 A JP15670181 A JP 15670181A JP 15670181 A JP15670181 A JP 15670181A JP S626192 B2 JPS626192 B2 JP S626192B2
- Authority
- JP
- Japan
- Prior art keywords
- minute hand
- hand
- eccentric
- core rod
- base plate
- 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
Links
- 230000033001 locomotion Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/04—Hands; Discs with a single mark or the like
- G04B19/044—Mounting and setting of the hands on the axle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Description
【発明の詳細な説明】 本発明は時計の構造に関する。[Detailed description of the invention] The present invention relates to the structure of a timepiece.
従来、一般に壁面等に掛ける壁掛式の時計や置
時計等においては、モーターや、歯車群や、回路
ブロツク等をケース、裏ブタ、地板等の部品を用
いて保持して１ツの時計ムーブメントを構成し、
その時計ムーブメントを掛時計や置時計用のケー
スに装備し、分針パイプや時針パイプに針を圧入
等で固定して時計を構成していた。 Conventionally, in wall-mounted clocks and table clocks, the motor, gears, circuit blocks, etc. are held together using parts such as the case, back lid, and main plate to form a single clock movement. death,
The clock movement was installed in a wall clock or table clock case, and the hands were press-fitted into the minute and hour pipes to form a clock.
従つて、ムーブメントとしての部品を多数個必
要とし、組立工数も必要とする。さらに、時計枠
にムーブメントを取付あるいは針を圧入固定する
等の外装組立の工数も必要とした。このように部
品数や組立工数の点からどうしてもコスト高にな
らざるを得ないという問題があつた。 Therefore, a large number of parts are required for the movement, and many man-hours are required for assembly. Furthermore, it required man-hours for exterior assembly, such as attaching the movement to the watch frame or press-fitting the hands. As described above, there is a problem in that the cost inevitably increases due to the number of parts and assembly man-hours.
本発明はかかる従来の問題点に鑑みて成したも
ので、その欠点を改良せんとするものである。以
下、本発明の一実施例を付図を参考にして説明す
る。 The present invention has been made in view of the problems of the prior art, and is intended to improve these drawbacks. Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
図において、１は固定子、２はコイル、３は鉄
芯、４は軸、５は回転子であり、これらによつて
モーターＡが構成されている。６はクラウンギヤ
ーであり、ケース１２の底面に対して垂立しモー
タＡの出力を受け回転する。７は分針であり円孔
部２６ａとキー溝部２６ｂ，２６ｂとより成る鍵
孔状透孔２６を有する。８は歯数12枚の内歯１４
と該内歯中央に円孔２７を有する時針であり、文
字板９を支えるケース１２上面に一体的に彫り込
んで設けられ歯数11枚の固定歯１５に当該内歯１
４はかみ合いいわゆるハーモニツク運動をして回
転する。このとき固定歯１５は彫り込んで設けら
れているので時針８及び分針７は文字板９に若干
の隙間で配設される。１１は芯棒であり、下端を
クラウンギヤー６に圧入され上端を後述する偏心
カム２５に圧入されてモータＡの出力を偏心カム
２５に伝える。２５は偏心カムであり、上記芯棒
１１が中央に固定される円板状の基板２５ａと該
基板２５ａの側方に突出する突片２５ｂ，２５ｂ
と、該基板２５ａの上面に設けられる抜けどめ用
の鍔２５ｃと、該基板２５ａに対して偏心かつ下
方に突出する偏心円板２５ｄとより成る。そして
偏心カム２５は鍔２５ｃで分針７の抜けどめを行
い基板２５ａ及び突片２５ｂ，２５ｂを分針７の
鍵孔状透孔２６に遊嵌して分針７を回転可能と
し、偏心円板２５ｄを時針８の円孔２７に遊嵌し
て時針８を駆動する。 In the figure, 1 is a stator, 2 is a coil, 3 is an iron core, 4 is a shaft, and 5 is a rotor, which constitute a motor A. Reference numeral 6 denotes a crown gear, which stands vertically against the bottom surface of the case 12 and rotates in response to the output of the motor A. 7 is a minute hand, which has a keyhole-shaped through hole 26 consisting of a circular hole portion 26a and key groove portions 26b, 26b. 8 is 14 internal teeth with 12 teeth
The hour hand has a circular hole 27 in the center of the inner tooth, and the inner tooth 1 is integrally carved into the upper surface of the case 12 that supports the dial 9.
4 engages and rotates in a so-called harmonic motion. At this time, since the fixed teeth 15 are provided by carving, the hour hand 8 and the minute hand 7 are arranged on the dial 9 with a slight gap. Reference numeral 11 denotes a core rod, whose lower end is press-fitted into the crown gear 6 and whose upper end is press-fitted into an eccentric cam 25, which will be described later, to transmit the output of the motor A to the eccentric cam 25. Reference numeral 25 designates an eccentric cam, which includes a disk-shaped base plate 25a to which the core rod 11 is fixed in the center, and protruding pieces 25b, 25b that protrude to the sides of the base plate 25a.
, a retaining collar 25c provided on the upper surface of the substrate 25a, and an eccentric disk 25d eccentrically and downwardly protruding with respect to the substrate 25a. Then, the eccentric cam 25 removes the minute hand 7 with the collar 25c, loosely fits the base plate 25a and the protrusions 25b, 25b into the keyhole-shaped through hole 26 of the minute hand 7, and makes the minute hand 7 rotatable, and the eccentric disc 25d is loosely fitted into the circular hole 27 of the hour hand 8 to drive the hour hand 8.
いま、芯棒１１が１回転すると偏心カム２５も
１回転し分針７が１回転し、偏心円板２５ｄの偏
心円運動により内歯１４と固定歯１５のかみ合い
歯数１枚分だけすなわち1/12回転だけ時針８が回
転する。１６は水晶振動子、１７はコンデンサ
ー、１８はインバーター、１９は分周器、２０は
駆動回路である。これらの部品は筒状のパツケー
ジに封入されており、発振器ブロツクＢを構成し
ている。出力０１，０２がコイルに接続され、電
池からの電源が接続される。しかして、０１，０
２は第６図の様な出力波形をなしモーターＡを30
秒に１回駆動させる。２１は電池端子、２２は前
面ガラス、２３は押えガラスである。 Now, when the core rod 11 rotates once, the eccentric cam 25 also rotates once, the minute hand 7 rotates once, and due to the eccentric circular movement of the eccentric disc 25d, the internal tooth 14 and the fixed tooth 15 engage with each other by one tooth, that is, 1/ The hour hand 8 rotates by 12 revolutions. 16 is a crystal resonator, 17 is a capacitor, 18 is an inverter, 19 is a frequency divider, and 20 is a drive circuit. These parts are enclosed in a cylindrical package and constitute an oscillator block B. Outputs 0 1 and 0 2 are connected to the coil, and power from the battery is connected. However, 0 1,0
2 has an output waveform as shown in Figure 6, and motor A is 30
Drive once per second. 21 is a battery terminal, 22 is a front glass, and 23 is a holding glass.
次に、この時計の動作について説明する。発振
器モジユールの出力によつて、コイルに交互に電
圧が印加されるので、回転子が回動をする。モー
ターＡの極数が16極であれば、1/16回転する。そ
の回転をクラウンギヤーにて減速して分針に伝え
る。回転子上の歯数を３枚、クラウンギヤーを60
枚とすると、モーターからの回転が30秒に１回、
であるから、１／１６×８／６０＝１／１２０で分針が
１／１２０回転する。 Next, the operation of this watch will be explained. The output of the oscillator module alternately applies voltage to the coils, causing the rotor to rotate. If motor A has 16 poles, it will rotate 1/16. The rotation is decelerated by a crown gear and transmitted to the minute hand. The number of teeth on the rotor is 3, and the crown gear is 60.
If the motor rotates once every 30 seconds,
Therefore, the minute hand rotates 1/120 times as 1/16 x 8/60 = 1/120.
即ち、30秒進む。In other words, advance by 30 seconds.
分針から時針への回転伝達は前記のように、ハ
ーモニツクドライブによつて伝達される。時刻合
せはクラウンギヤの中心が裏蓋１０の外に突出し
ているので、この部分を持つて回動すれば、回転
子も含めて強制的に回転できる。 Rotation is transmitted from the minute hand to the hour hand by the harmonic drive, as described above. To set the time, the center of the crown gear protrudes outside the back cover 10, so if you hold this part and turn it, you can forcibly rotate the crown gear including the rotor.
かかるように、本発明の時計は、偏心カムの基
板及び該基板の側方に突出する突片を分針に設け
られた鍵孔状透孔に遊嵌せしめると共に偏心カム
に芯棒を固定して分針を回転可能とし、上記基板
から一体に設けられた鍔で分針の抜けどめを防止
し、偏心カムの偏心円板を内歯中央に穿設された
円孔に遊嵌して時針をハーモニツク回転するよう
にしたことを特徴とするものであるので以下の効
果を有する。 As described above, in the timepiece of the present invention, the base plate of the eccentric cam and the protruding piece projecting laterally from the base plate are loosely fitted into the keyhole-shaped through hole provided in the minute hand, and the core rod is fixed to the eccentric cam. The minute hand is made rotatable, a flange provided integrally with the base plate prevents the minute hand from being removed, and the hour hand is harmonized by loosely fitting the eccentric disk of the eccentric cam into a circular hole drilled in the center of the internal tooth. Since it is characterized in that it rotates, it has the following effects.
(イ) 文字板の表側から時針、分針を文字板の裏側
からモーターやギアー等の駆動源を組立て可能
であるので、組立部品点数、組立工数が大幅に
削減された。(a) Since it is possible to assemble the hour and minute hands from the front side of the dial and drive sources such as motors and gears from the back of the dial, the number of assembly parts and assembly man-hours are significantly reduced.
(ロ) 分針は鍵孔状透孔に偏心カムを遊嵌して連結
され芯棒に強固に固定されていないので、芯棒
が傾斜しても分針が文字板に強くすれることな
くモータに対して大きな負荷とならない。(b) The minute hand is connected by loosely fitting an eccentric cam into the keyhole-shaped through hole and is not firmly fixed to the core rod, so even if the core rod is tilted, the minute hand does not rub strongly against the dial and is connected to the motor. It does not place a large burden on the user.
第１図乃至第６図は本発明時計の一実施例の駆
動部の断面を示すもので第１図は全体分解斜視
図、第２図は要部断面図、第３図は針部分解斜視
図、第４図は歯車の組合せ状態の断面図、第５図
は発振器モジユールの配線図、第６図は出力波型
図である。
１……固定子、２……コイル、３……鉄芯、４
……軸、５……回転子、６……クラウンギヤー、
７……分針、８……時針、９……文字板、１０…
…裏蓋、１１……芯棒、１２……ケース、１４…
…内歯、１５……固定歯、１６……水晶振動子、
１７……コンデンサー、１８……インバーター、
１９……分周器、２０……駆動回路、２１……電
池端子、２２……前面ガラス、２３……押えガラ
ス、２４……分針、２５……偏心カム、２６……
鍵孔状透孔、２７……円孔。
Figures 1 to 6 show cross-sections of the drive unit of an embodiment of the timepiece of the present invention, with Figure 1 being an exploded perspective view of the whole, Figure 2 being a sectional view of the main parts, and Figure 3 being an exploded perspective view of the hand. 4 is a sectional view of the gear combination, FIG. 5 is a wiring diagram of the oscillator module, and FIG. 6 is an output waveform diagram. 1...Stator, 2...Coil, 3...Iron core, 4
... shaft, 5 ... rotor, 6 ... crown gear,
7...Minute hand, 8...Hour hand, 9...Dial, 10...
...Camera back, 11...core rod, 12...case, 14...
...Internal teeth, 15...Fixed teeth, 16...Crystal oscillator,
17... Capacitor, 18... Inverter,
19... Frequency divider, 20... Drive circuit, 21... Battery terminal, 22... Front glass, 23... Presser glass, 24... Minute hand, 25... Eccentric cam, 26...
Keyhole-shaped hole, 27... circular hole.
Claims (1)
定歯車とかみ合う内歯を時針の裏面に形成し、上
記固定歯車、時針を貫通る芯棒を分針に固定し、
該芯棒に対して偏心する偏心カムを時針の内歯中
央に穿設された円孔に遊嵌し、分針の一回転に対
応し時針が所定角度ハーモニツク回転するよう構
成された時計において、偏心カムの基板及び該基
板の側方に突出する突片を分針に設けられた鍵孔
状透孔に遊嵌せしめると共に偏心カムに芯棒を固
定して分針を回転可能とし、上記基板から一体に
設けられた鍔で分針の抜けどめを防止し、偏心カ
ムの偏心円板を内歯中央に穿設された円孔に遊嵌
して時針をハーモニツク回転するようにしたこと
を特徴とする時計。1. A fixed gear is formed in the center of the front side of the case, internal teeth that mesh with the fixed gear are formed on the back surface of the hour hand, and a core rod passing through the fixed gear and the hour hand is fixed to the minute hand,
In a watch in which an eccentric cam that is eccentric to the core rod is loosely fitted into a circular hole drilled in the center of the inner teeth of the hour hand, the hour hand harmonically rotates by a predetermined angle in response to one rotation of the minute hand. A base plate of the cam and a protruding piece protruding from the side of the base plate are loosely fitted into a keyhole-shaped hole provided in the minute hand, and a core rod is fixed to the eccentric cam to enable the minute hand to rotate, and the minute hand is integrally attached to the base plate. A watch characterized in that the minute hand is prevented from being removed by a provided flange, and the hour hand is rotated harmonically by loosely fitting the eccentric disk of the eccentric cam into a circular hole drilled in the center of the internal teeth. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15670181A JPS57131089A (en) | 1981-09-30 | 1981-09-30 | Watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15670181A JPS57131089A (en) | 1981-09-30 | 1981-09-30 | Watch |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11084880A Division JPS57131088A (en) | 1980-08-11 | 1980-08-11 | Watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57131089A JPS57131089A (en) | 1982-08-13 |
| JPS626192B2 true JPS626192B2 (en) | 1987-02-09 |
Family
ID=15633441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15670181A Granted JPS57131089A (en) | 1981-09-30 | 1981-09-30 | Watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57131089A (en) |
-
1981
- 1981-09-30 JP JP15670181A patent/JPS57131089A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57131089A (en) | 1982-08-13 |
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