JP2525163B2 - Electronic clock with power generator - Google Patents
Electronic clock with power generatorInfo
- Publication number
- JP2525163B2 JP2525163B2 JP61275666A JP27566686A JP2525163B2 JP 2525163 B2 JP2525163 B2 JP 2525163B2 JP 61275666 A JP61275666 A JP 61275666A JP 27566686 A JP27566686 A JP 27566686A JP 2525163 B2 JP2525163 B2 JP 2525163B2
- Authority
- JP
- Japan
- Prior art keywords
- rotary weight
- power
- power generator
- gear
- rotor
- 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 - Fee Related
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electromechanical Clocks (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電子腕時計用発電装置の動力伝達構造に関
する。TECHNICAL FIELD The present invention relates to a power transmission structure of a power generator for an electronic wristwatch.
本発明は、腕の動き又は重力を利用して回転重錘から
得られる機械エネルギーを電気エネルギーに変換する電
子腕時計用発電装置において、前記回転重錘の動力伝達
部に摩擦力で動力を伝達する機構をすくなくとも１つ有
していることにより、例えば落下等により回転重錘に強
い衝撃負荷トルクが加わつたときに、前記摩擦力で動力
を伝達する機構がスリツプし、前記機構以降の動力伝達
部に強い衝撃負荷トルクが伝わるのを回避させることに
より、前記動力伝達部の耐衝撃性能を向上させるもので
ある。The present invention relates to a power generator for an electronic wristwatch that converts mechanical energy obtained from a rotary weight into electric energy by using arm movement or gravity, and transmits power by frictional force to a power transmission unit of the rotary weight. By having at least one mechanism, when a strong impact load torque is applied to the rotary weight due to, for example, dropping, the mechanism for transmitting power by the friction force slips, and the power transmission unit after the mechanism is slipped. By avoiding the transmission of a strong impact load torque, the impact resistance performance of the power transmission section is improved.
従来の腕時計用発電装置は、回転重錘からの回転力を
歯車の組み合せでそのまま増速して伝達する動力伝達構
造をとつていた。The conventional wristwatch power generator has a power transmission structure in which the rotational force from the rotary weight is increased and transmitted as it is by a combination of gears.
しかし前述の従来技術では、落下等によつて回転重錘
に強い衝撃負荷トルクが加わると、前記動力伝達部の歯
車の支持部分、及び歯車の歯が破損してしまい耐衝撃性
能に劣つていた。また前記耐衝撃性能を向上させるため
には、個々の部品を衝撃力に耐えられる様に強度アツプ
させる必要がある。しかし、これには構造の大型化が伴
い、腕時計の様な小さな製品に採用するのは困難とな
る。However, in the above-mentioned conventional technique, when a strong impact load torque is applied to the rotary weight due to a drop or the like, the gear support portion of the power transmission portion and the gear teeth are damaged, and the impact resistance performance is poor. It was Further, in order to improve the impact resistance performance, it is necessary to increase the strength of each component so as to withstand the impact force. However, this is accompanied by an increase in the size of the structure, which makes it difficult to apply it to small products such as wristwatches.
そこで本発明は、このような問題点を解決するもので
あり、その目的とするところは、耐衝撃性能に優れ、か
つ、小型で腕時計に搭載可能な発電装置を実現するとこ
ろにある。Therefore, the present invention solves such a problem, and an object of the present invention is to realize a small-sized power generator which is excellent in impact resistance and can be mounted on a wristwatch.
本発明の発電装置付電子時計は、動力源である回転重
錘と、ロータと、ステータと、コイルとからなり機械エ
ネルギーを電気エネルギーに変換する発電装置を内蔵し
た発電装置付電子時計において、 前記回転重錘から前記ロータへの動力伝達部に摩擦力で
動力を伝達するスリップ機構を設け、 前記スリップ機構は前記回転重錘と該回転重錘からの動
力が伝達させる回転重錘歯車からなり、 前記回転重錘歯車は中央に貫通穴部を有し、 前記回転重錘は前記貫通穴部によって支持案内されてな
ることを特徴とする。The electronic timepiece with a power generator of the present invention is an electronic timepiece with a power generator, which includes a rotary weight that is a power source, a rotor, a stator, and a coil, and that has a built-in power generator that converts mechanical energy into electrical energy. A slip mechanism that transmits power by frictional force to a power transmission unit from the rotary weight to the rotor, wherein the slip mechanism is composed of the rotary weight and a rotary weight gear that transmits power from the rotary weight, The rotary weight gear has a through hole portion in the center, and the rotary weight is supported and guided by the through hole portion.
本発明の上記の構成によれば、落下等による強い衝撃
負荷トルクの回転重衝に加わつたときに、前記摩擦力で
動力を伝達する機構がスリツプし、前記機構以降の動力
伝達部に強い衝撃負荷トルクが伝わるのを回避すること
ができる。According to the above configuration of the present invention, when a strong impact load torque, such as a drop, is applied to the rotation impact, the mechanism for transmitting power by the frictional force slips, and a strong impact is exerted on the power transmission unit after the mechanism. It is possible to prevent the load torque from being transmitted.
第１図は、本発明の一実施例を示す要部断面図であ
る。輪列受１と輪列受１に固定されるねじ３の間に隙間
をもつて回転重錘２が取り付けられており、回転重錘２
には回転重錘歯車５が前記回転重錘２との間に任意の摩
擦力をもつて取り付けられている。また中間車かな６に
は中間歯車７が固定されている。従つて、腕の動き又は
車力によつて回転重錘１が自由に回転しこの回転は、回
転重錘２と回転重錘歯車５との間の摩擦力で回転重錘歯
車５へ伝えられ、中間車かな６と中間車歯車７によつて
増速されロータ８へ伝えられる。ロータ８の回りには、
ステータ９が配置され、ロータ８の回転によつて現れる
磁束の変化を第２図に示すコイル10に導き、コイル10に
発生する電力を充電制御回路11を経て二次電源12に蓄え
る。13は電子回路を含む時計機構である。FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention. The rotary weight 2 is attached with a gap between the train wheel bridge 1 and the screw 3 fixed to the train wheel bridge 1.
The rotary weight gear 5 is attached to the rotary weight 2 with arbitrary frictional force. An intermediate gear 7 is fixed to the intermediate wheel 6. Therefore, the rotary weight 1 is freely rotated by the movement of the arm or the vehicle force, and this rotation is transmitted to the rotary weight gear 5 by the frictional force between the rotary weight 2 and the rotary weight gear 5. , The intermediate wheel pinion 6 and the intermediate wheel gear 7 increase the speed and transmit the speed to the rotor 8. Around the rotor 8,
A stator 9 is arranged to guide a change in magnetic flux generated by the rotation of the rotor 8 to the coil 10 shown in FIG. 2, and the electric power generated in the coil 10 is stored in the secondary power source 12 via the charging control circuit 11. Reference numeral 13 is a clock mechanism including an electronic circuit.
第３図は、回転重錘歯車５の平面図である。前記回転
重錘歯車５は5aの部分が径方向にバネ性を持つているた
め回転重錘２に取り付けられたとき、前記5aのバネによ
つて回転錘２との間に摩擦力を発生させることになる。FIG. 3 is a plan view of the rotary weight gear 5. Since 5a of the rotary weight gear 5 has a spring property in the radial direction, when mounted on the rotary weight 2, the spring of 5a causes a frictional force between the rotary weight 2 and the rotary weight 2. It will be.
この摩擦力は、次の関係から設定されている。まず、
通常時を考えるとスリツプせずに伝達しなければならな
いので、ロータ８とステータ９に生じる磁力による負荷
分及び輪列部の摩擦などの機械的な負荷より大きな摩擦
力になつている。次に衝撃時を考えると、磁力による負
荷はロータ８の回転速度が速くなると電磁誘導作用から
大きくなるので、摩擦力はこの負荷及び先程の機械的な
負荷より小さくなつている。This frictional force is set based on the following relationship. First,
Considering the normal time, since it must be transmitted without slipping, the frictional force is larger than the mechanical load such as the load due to the magnetic force generated in the rotor 8 and the stator 9 and the friction in the train wheel. Next, considering the time of impact, the load due to the magnetic force increases due to the electromagnetic induction when the rotation speed of the rotor 8 increases, so that the frictional force is smaller than this load and the mechanical load.
これらの値は、簡易的に次の考え方で求めれば実使用
を満足する。摩擦力の下限値は回転重錘のアンバランス
量以上にする。時計を静かに携帯する時は、回転重錘２
に1Gの加速度が加わるので、これ以上にすれば、負荷が
多少変化してもスリツプしてしまうことはない。摩擦力
の上限値は、車のほぞ、歯車等機械的な強度限界よりも
小さな値とすれば良い。These values satisfy practical use if simply calculated according to the following concept. The lower limit of the frictional force should be equal to or greater than the imbalance of the rotating weight. When carrying the watch gently, use the rotating weight 2
Since 1G acceleration is applied to, if it is set higher than this, it will not slip even if the load changes a little. The upper limit of the frictional force may be set to a value smaller than the mechanical strength limit of the car's tenon or gear.
以上の構成によれば、通常携帯時は、腕の動き等によ
つて発生する回転重錘２のトルクより、摩擦力が大きい
ため、回転重錘歯車５は回転重錘２の回転にそのまま中
間車かな６及びロータ８に伝えるが、例えば落下等の強
い衝撃が回転重錘２に加わつた時は、回転重錘２のトル
クが摩擦力を上まわるので、回転重錘歯車５がスリツプ
し、回転重錘２の回転は回転重錘歯車５以降の車に伝え
られない。According to the above configuration, the frictional force is larger than the torque of the rotary weight 2 generated by the movement of the arm or the like during normal carrying, so that the rotary weight gear 5 is intermediate to the rotation of the rotary weight 2 as it is. Although transmitted to the vehicle pinion 6 and the rotor 8, for example, when a strong impact such as a drop is applied to the rotary weight 2, the torque of the rotary weight 2 exceeds the frictional force, so the rotary weight gear 5 slips, The rotation of the rotary weight 2 is not transmitted to the vehicle after the rotary weight gear 5.
以上のように本発明は、回転重錘を回転重錘歯車が支
持案内しているため、部品点数を削減でき構造が簡単に
できるとともに回転重錘と回転重錘歯車のように薄型の
部品ですべり機構を構成しているので発電装置自体を小
型薄型にできる。As described above, according to the present invention, since the rotary weight is supported and guided by the rotary weight gear, the number of parts can be reduced and the structure can be simplified, and thin rotary parts such as the rotary weight and the rotary weight gear can be used. Since the sliding mechanism is configured, the power generator itself can be made small and thin.
又、回転重錘は貫通穴部によって支持案内されている
ことにより、径方向の精度を良くすることができるた
め、本願発明のような歯車の係合による伝達機構では、
係合外れ等を防ぐことができるものである。Further, since the rotary weight is supported and guided by the through hole, the accuracy in the radial direction can be improved. Therefore, in the transmission mechanism by the engagement of gears as in the present invention,
It is possible to prevent disengagement and the like.
更に、すべり機構を設けたことにより回転重錘に過大
な負荷が加わった場合にロータへの過負荷を防ぐことが
でき、発電装置の破壊を防止できるものである。Further, by providing the sliding mechanism, it is possible to prevent the rotor from being overloaded when an excessive load is applied to the rotary weight, and it is possible to prevent the power generator from being destroyed.
更には、落下等による衝撃力によりロータが高速回転
すると、ロータ上下の油が遠心力で飛んでしまい油切れ
を生じることがあるが、これを防止する効果を奏する。Further, when the rotor rotates at a high speed due to an impact force caused by a drop or the like, oil above and below the rotor may be blown out by centrifugal force and oil shortage may occur, but the effect is prevented.
第１図は、本発明実施例の動力伝達部の組立断面図。 第２図は、本発明実施例の充電回路図。 第３図は、本発明実施例の回転重錘歯車の平面図。 FIG. 1 is an assembled sectional view of a power transmission unit according to an embodiment of the present invention. FIG. 2 is a charging circuit diagram of the embodiment of the present invention. FIG. 3 is a plan view of a rotary weight gear according to an embodiment of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鴨井 和美 諏訪市大和３丁目３番５号 セイコーエ プソン株式会社内 (56)参考文献 特開 昭52−85851（ＪＰ，Ａ) 実開 昭60−149534（ＪＰ，Ｕ) 実開 昭61−153293（ＪＰ，Ｕ) 実開 昭61−137131（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazumi Kazumi 3-3-5 Yamato, Suwa-shi Seiko Epson Corporation (56) Reference JP-A-52-85851 (JP, A) (JP, U) Actually opened 61-153293 (JP, U) Actually opened 61-137131 (JP, U)
Claims (1)
ータと、コイルとからなり機械エネルギーを電気エネル
ギーに変換する発電装置を内蔵した発電装置付電子時計
において、 前記回転重錘から前記ロータへの動力伝達部に摩擦力で
動力を伝達するスリップ機構を設け、 前記スリップ機構は前記回転重錘と該回転重錘からの動
力が伝達させる回転重錘歯車からなり、 前記回転重錘歯車は中央に貫通穴部を有し、 前記回転重錘は前記貫通穴部によって支持案内されてな
ることを特徴とする発電装置付電子時計。1. An electronic timepiece with a power generator including a rotary weight that is a power source, a rotor, a stator, and a coil, which includes a power generator that converts mechanical energy into electrical energy. A slip mechanism that transmits power by frictional force is provided in a power transmission unit to the rotor, and the slip mechanism includes the rotary weight and a rotary weight gear to which power from the rotary weight is transmitted. Has a through hole portion in the center, and the rotary weight is supported and guided by the through hole portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61275666A JP2525163B2 (en) | 1986-11-19 | 1986-11-19 | Electronic clock with power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61275666A JP2525163B2 (en) | 1986-11-19 | 1986-11-19 | Electronic clock with power generator |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6235209A Division JP2581467B2 (en) | 1994-09-29 | 1994-09-29 | Power generator |
| JP7329359A Division JP2586358B2 (en) | 1995-12-18 | 1995-12-18 | Power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63128286A JPS63128286A (en) | 1988-05-31 |
| JP2525163B2 true JP2525163B2 (en) | 1996-08-14 |
Family
ID=17558657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61275666A Expired - Fee Related JP2525163B2 (en) | 1986-11-19 | 1986-11-19 | Electronic clock with power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525163B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900700935A (en) * | 1988-01-25 | 1990-08-17 | 야마무라 가쯔미 | Electronic wrist watch with power generation device |
| US5701278A (en) * | 1994-03-29 | 1997-12-23 | Citizen Watch Co., Ltd. | Power supply unit for electronic appliances |
| CH686474B5 (en) * | 1994-05-04 | 1996-10-15 | Ebauchesfabrik Eta Ag | Coupling device between a source of mechanical energy and an electric generator in a timepiece. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285851A (en) * | 1976-01-08 | 1977-07-16 | Seiko Epson Corp | Electronic wristwatch with generator |
| JPS60149534U (en) * | 1984-03-14 | 1985-10-04 | 日本発条株式会社 | rotation transmission device |
| JPS61137131U (en) * | 1985-02-14 | 1986-08-26 | ||
| JPS61153293U (en) * | 1985-03-14 | 1986-09-22 |
-
1986
- 1986-11-19 JP JP61275666A patent/JP2525163B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63128286A (en) | 1988-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |