JP6944005B2

JP6944005B2 - Clock with solar cell

Info

Publication number: JP6944005B2
Application number: JP2020052228A
Authority: JP
Inventors: 和也今村; 隆太郎植村
Original assignee: Citizen Watch Co Ltd
Current assignee: Citizen Watch Co Ltd
Priority date: 2016-02-18
Filing date: 2020-03-24
Publication date: 2021-10-06
Anticipated expiration: 2036-02-18
Also published as: JP2020128983A

Description

本発明は、太陽電池を備えた太陽電池付き時計に関する。 The present invention relates to a timepiece with a solar cell including a solar cell.

太陽電池で発生した電力により、指針や表示部などを駆動する太陽電池付きの時計（以下、太陽電池付き時計という。）が知られている。ここで、太陽電池は、薄板状で、動力源（モータや香箱等）や時間基準などの装置からなる時計の機械体がパッケージされたムーブメントと光透過性を有する文字板との間に配置されている。このように、太陽電池は、ムーブメントと文字板との間に積層されるため、時計の厚さが厚くなり易い。 A clock with a solar cell (hereinafter referred to as a clock with a solar cell) that drives a pointer, a display unit, and the like by electric power generated by the solar cell is known. Here, the solar cell is a thin plate, and is arranged between the movement in which the mechanical body of the watch, which consists of a device such as a power source (motor, barrel, etc.) and a time reference, is packaged and a dial having light transmission. ing. In this way, since the solar cell is laminated between the movement and the dial, the thickness of the watch tends to be thick.

そこで、ソーラーセルをドーナツ状にして、時計基礎ムーブメント（ベースムーブメント）とは平面的に重ならないようにムーブメントに組み込んで、断面高さ位置の配置を考慮した時計が提案されている（例えば、特許文献１参照）。 Therefore, a watch has been proposed in which the solar cell is made into a donut shape and incorporated into the movement so that it does not overlap with the watch basic movement (base movement) in a plane, and the arrangement of the cross-sectional height position is taken into consideration (for example, a patent). Reference 1).

特開２００４−０６９６２６号公報Japanese Unexamined Patent Publication No. 2004-06626

ところで、時計には、時刻指示の指針の位置修正等のために、ケースから突出したりゅうずが備えられており、りゅうずは、ベースムーブメントからケースまで延びた巻真に取り付けられている。このため、特許文献１に記載された時計は、巻真とソーラーセルとが平面視で重なり、時計の厚さ方向に積層されるため、時計を薄くする上で障害になっている。 By the way, the watch is provided with a crown protruding from the case for correcting the position of the pointer for indicating the time, and the crown is attached to a winding stem extending from the base movement to the case. For this reason, in the timepiece described in Patent Document 1, the winding stem and the solar cell overlap in a plan view and are laminated in the thickness direction of the timepiece, which is an obstacle in thinning the timepiece.

そこで、巻真を時計の厚さ方向の下の方（文字板から遠ざかる方向）に偏らせて配置することも考えられるが、この場合、巻真に取り付けられるりゅうずの位置も下方に偏り、りゅうずの一部がケースの下面よりも下方に突出し、結果的に、りゅうずも含めた時計の厚さが厚くなる。なお、この問題は、巻真だけに生じるものではなく、ベースムーブメントから外方に延びたがプッシュボタン等の外部操作部材についても同様である。 Therefore, it is conceivable to displace the winding stem downward in the thickness direction of the watch (in the direction away from the dial), but in this case, the position of the crown attached to the winding stem is also biased downward. A part of the crown protrudes below the underside of the case, resulting in a thicker watch including the crown. It should be noted that this problem does not occur only in the winding stem, but also applies to an external operating member such as a push button, which extends outward from the base movement.

本発明は上記事情に鑑みなされたものであって、時計の厚さを薄くすることができる太陽電池付き時計を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a timepiece with a solar cell capable of reducing the thickness of the timepiece.

本発明は、ベースムーブメントと、光透過性を有する文字板と、前記ベースムーブメントに対して半径方向の外方であって前記文字板の下方に配置された太陽電池部材と、を備え、前記太陽電池部材は、太陽電池と、前記太陽電池の、前記文字板から遠い側の面に積層して前記太陽電池を保持する保持部材と、を有し、前記保持部材のみに、前記ベースムーブメントに向けて突出した突出部が形成され、前記ベースムーブメントは、前記突出部を前記太陽電池部材の上方から押さえることにより、前記太陽電池部材を下方に押さえている太陽電池付き時計である。 The present invention comprises a base movement, a light-transmitting dial, and a solar cell member located radially outside the base movement and below the dial. The battery member includes a solar cell and a holding member that is laminated on the surface of the solar cell on the side far from the dial to hold the solar cell, and only the holding member is directed toward the base movement. The protruding portion is formed, and the base movement is a clock with a solar cell that holds the solar cell member downward by pressing the protruding portion from above the solar cell member.

本発明に係る太陽電池付き時計によれば、時計の厚さを薄くすることができる。 According to the timepiece with a solar cell according to the present invention, the thickness of the timepiece can be reduced.

本発明に係る太陽電池付き時計の一実施形態である電子時計におけるムーブメントを、文字板の側から見た平面図である。It is a top view of the movement in the electronic timepiece which is one Embodiment of the timepiece with a solar cell which concerns on this invention, seen from the side of a dial. 図１におけるＩ−Ｉ線に沿った面による断面を示す断面図であり、図１では記載を省略した文字板も含む。FIG. 1 is a cross-sectional view showing a cross section taken along the line I-I in FIG. 1, and includes a dial whose description is omitted in FIG. 図１に示した太陽電池部材における切欠きを含む部分の詳細を示す拡大図である。It is an enlarged view which shows the detail of the part including the notch in the solar cell member shown in FIG. 切欠きの無い太陽電池部材を備えた電子時計を示す、図１相当の平面図である。FIG. 3 is a plan view corresponding to FIG. 1 showing an electronic clock provided with a solar cell member having no notch.

以下、本発明に係る太陽電池付き時計の実施形態について、図面を用いて説明する。
＜電子時計の構成＞
図１は、本発明に係る太陽電池付き時計の一実施形態である電子時計１００におけるムーブメント１を、文字板３（後述する図２参照）の側から見た平面図である。図２は、図１におけるＩ−Ｉ線に沿った面による断面を示す断面図であり、図１では記載を省略した文字板３も含む。図３は、図１に示した太陽電池部材１０における切欠き１０ｃを含む部分の詳細を示す拡大図である。 Hereinafter, embodiments of a clock with a solar cell according to the present invention will be described with reference to the drawings.
<Configuration of electronic clock>
FIG. 1 is a plan view of a movement 1 in an electronic clock 100, which is an embodiment of a clock with a solar cell according to the present invention, as viewed from the side of a dial 3 (see FIG. 2 described later). FIG. 2 is a cross-sectional view showing a cross section taken along the plane along the line I-I in FIG. 1, and includes a dial 3 which is not described in FIG. FIG. 3 is an enlarged view showing details of a portion of the solar cell member 10 shown in FIG. 1 including the notch 10c.

図示の電子時計１００のムーブメント１は、図１，２に示すように、地板６の上に、ベースムーブメント２、太陽電池部材１０及び太陽電池支持枠５を備えている。そして、電子時計１００は、ムーブメント１に加えて、文字板３及び巻真４を備えている。電子時計１００は、この他に、ムーブメント１や文字板３等を内部に収容するケースや、風防ガラス、指針等、一般の電子時計が備えているものを当然に備えているが、これらケース等は図示を省略している。 As shown in FIGS. 1 and 2, the movement 1 of the illustrated electronic clock 100 includes a base movement 2, a solar cell member 10, and a solar cell support frame 5 on a main plate 6. The electronic timepiece 100 includes a dial 3 and a winding stem 4 in addition to the movement 1. In addition to this, the electronic watch 100 naturally includes a case for accommodating the movement 1 and the dial 3 and the like, a windshield, a pointer, and the like, which are provided by a general electronic watch. Is omitted.

ここで、ベースムーブメント２は、地板６と輪列受８とで挟んで支持された、指針を駆動する歯車輪列、輪列受８にねじ止めされた、指針の位置を修正するための裏周り（巻真４周辺の部材)、輪列受８にねじ止めされた回路部材、地板６にねじ止めされたモータ２２及び二次電池２１を備えている。なお、本発明におけるベースムーブメントは、これらモータ２２、歯車輪列等の全てを備えたものに限定されない。 Here, the base movement 2 is a back surface for correcting the position of the pointer, which is screwed to the wheel train and the train wheel receiver 8 which drive the pointer and is supported by being sandwiched between the main plate 6 and the train wheel receiver 8. It includes a circumference (a member around the winding stem 4), a circuit member screwed to the train wheel receiver 8, a motor 22 screwed to the main plate 6, and a secondary battery 21. The base movement in the present invention is not limited to the one including all of these motors 22, gear train wheels, and the like.

ベースムーブメント２は、これらモータ２２や歯車輪列等を全体的に、時刻指針用の軸が配置された中心Ｃ付近に集中させた配置として、中心Ｃからの半径方向のサイズが小さく形成されている。文字板３は光透過性を有していて太陽光などの一部を透過させ、図２に示すように、電子時計１００の厚さ方向において、ベースムーブメント２よりも上方に配置されている。 The base movement 2 is formed so that the size of the motor 22, the wheel train, and the like in the radial direction from the center C is small as a whole, as the arrangement is such that the axes for the time pointer are concentrated in the vicinity of the center C. There is. The dial 3 has light transmittance and allows a part of sunlight and the like to pass through, and is arranged above the base movement 2 in the thickness direction of the electronic timepiece 100 as shown in FIG.

太陽電池部材１０は、薄板状であり、図２に示すように、ムーブメント１の地板６の上方で、かつ文字板３の下方、すなわちベースムーブメント２が配置されている側に配置されている。太陽電池部材１０は、複数のセル１１ｓが周方向に並んだフィルム状の太陽電池１１と、太陽電池１１の、文字板３から遠い側の面１１ａから、略全面に亘って積層され、太陽電池１１を保持する保持部材１２とにより形成されている。保持部材１２は、例えばＳＵＳなどの磁性材料で形成された薄板である。太陽電池１１と保持部材１２とは、例えば接着剤により一体に接合されている。 The solar cell member 10 has a thin plate shape, and is arranged above the main plate 6 of the movement 1 and below the dial 3, that is, on the side where the base movement 2 is arranged, as shown in FIG. The solar cell member 10 is laminated over substantially the entire surface from the film-shaped solar cell 11 in which a plurality of cells 11s are arranged in the circumferential direction and the surface 11a of the solar cell 11 on the side far from the dial 3. It is formed by a holding member 12 that holds 11. The holding member 12 is a thin plate made of a magnetic material such as SUS. The solar cell 11 and the holding member 12 are integrally joined by, for example, an adhesive.

なお、保持部材１２は、太陽電池１１よりも剛性の高いものであることが好ましく、この場合、太陽電池１１と保持部材１２とが接合された太陽電池部材１０は、仮にこの太陽電池部材１０と同じ厚さの太陽電池１１単体よりも、剛性を高くすることができる。また、保持部材１２は、ＳＵＳに限定されるものでもなく、金属に限定されるものでもなく、さらに、磁性材料に限定されるものでもない。また、太陽電池１１と保持部材１２とは、接着剤で接合されているものに限定されるものではなく、他の接合方法で一体に接合されているものであってもよい。 The holding member 12 preferably has a higher rigidity than the solar cell 11. In this case, the solar cell member 10 to which the solar cell 11 and the holding member 12 are joined is tentatively referred to as the solar cell member 10. The rigidity can be made higher than that of the solar cell 11 alone having the same thickness. Further, the holding member 12 is not limited to SUS, is not limited to metal, and is not limited to magnetic material. Further, the solar cell 11 and the holding member 12 are not limited to those joined by an adhesive, and may be integrally joined by another joining method.

太陽電池部材１０は、図１に示すように、ベースムーブメント２に対して中心Ｃの半径方向の外方に、ベースムーブメント２を略全周に亘って囲むように配置されている。つまり、太陽電池部材１０は、図３に示すように、太陽電池部材１０によって仕切られた半径方向の外側の領域３１と内側の領域３２とを通じさせる切れ目である切欠き１０ｃが形成されていて、図１の平面視において、切欠き１０ｃを除いて略円環状に延び、全体としてＣ字形状に形成されている。なお、「Ｃ字状」は、アルファベットの文字「Ｃ」を想起させるように、環状の形状のうち周方向の一部が無い形状を総称して表現したものである。
したがって、環状は、円弧が周方向に繋がった円環状であってもよいし、直線の線分が周方向に繋がった矩形環状であってもよいし、円弧と直線の線分とが周方向に繋がった環状であってもよい。 As shown in FIG. 1, the solar cell member 10 is arranged outside the center C in the radial direction with respect to the base movement 2 so as to surround the base movement 2 over substantially the entire circumference. That is, as shown in FIG. 3, the solar cell member 10 is formed with a notch 10c which is a cut through which the outer region 31 and the inner region 32 in the radial direction are partitioned by the solar cell member 10. In the plan view of FIG. 1, it extends in a substantially annular shape except for the notch 10c, and is formed in a C shape as a whole. The "C-shape" is a general term for a ring-shaped shape that does not have a part in the circumferential direction so as to remind us of the letter "C" in the alphabet.
Therefore, the ring may be a circular ring in which arcs are connected in the circumferential direction, a rectangular ring in which straight line segments are connected in the circumferential direction, or an arc and a straight line segment are connected in the circumferential direction. It may be a ring connected to.

太陽電池１１は、図３に示すように、ベースムーブメント２と電気的な導通を得るための接点ばね（図示せず）が図２の下方から接触する２つの接点１０ｄ，１０ｄを有している。これらの接点１０ｄ，１０ｄは電気的な短絡を防止する必要があるため、接点１０ｄ，１０ｄには保持部材１２が接合されていない。 As shown in FIG. 3, the solar cell 11 has two contacts 10d and 10d in which a contact spring (not shown) for obtaining electrical continuity with the base movement 2 contacts from below in FIG. .. Since it is necessary to prevent electrical short circuits in these contacts 10d and 10d, the holding member 12 is not joined to the contacts 10d and 10d.

また、図１の平面視において、太陽電池部材１０は、後述する突出部１２ａを除いてベースムーブメント２とは重ならない。太陽電池部材１０は、ベースムーブメント２を略全周に亘って電子時計１００の厚さ方向に関して、図２に示すように、ベースムーブメント２が配置されている高さの範囲Ｈ内に配置されている。 Further, in the plan view of FIG. 1, the solar cell member 10 does not overlap with the base movement 2 except for the protruding portion 12a described later. The solar cell member 10 is arranged within the range H of the height in which the base movement 2 is arranged, as shown in FIG. 2, with respect to the thickness direction of the electronic clock 100 over substantially the entire circumference of the base movement 2. There is.

巻真４は、図１に示すように、ベースムーブメント２から半径方向の外方に、ケースの外側まで延びていて、外側の先端には、図示しないりゅうずが取り付けられる。そして、太陽電池部材１０の切欠き１０ｃは、この巻真４を通す部分に配置されている。つまり、切欠き１０ｃは、図１の平面視で巻真４と重なり、かつ図２の電子時計１００の厚さ方向においても重なる位置に形成されている。したがって、この切欠き１０ｃにより、太陽電池部材１０は巻真４と干渉しない状態で配置されている。 As shown in FIG. 1, the winding stem 4 extends radially outward from the base movement 2 to the outside of the case, and a crown (not shown) is attached to the outer tip. The notch 10c of the solar cell member 10 is arranged at a portion through which the winding stem 4 is passed. That is, the notch 10c is formed at a position where it overlaps with the winding stem 4 in the plan view of FIG. 1 and also overlaps with the thickness direction of the electronic timepiece 100 of FIG. Therefore, the solar cell member 10 is arranged in a state where it does not interfere with the winding stem 4 by the notch 10c.

なお、ベースムーブメント２が備えるモータ２２は、巻真４とは、中心Ｃを挟んで反対側の半分の領域（巻真４を中心とする、中心Ｃ回りの角度１８０［度］の領域αとは反対側の領域）βに配置されている。 The motor 22 included in the base movement 2 has a half region (centered on the winding stem 4 and an angle of 180 [degrees] around the center C) on the opposite side of the center C from the winding stem 4. Is located in the opposite region) β.

また、太陽電池部材１０は、Ｃ字形状の内周縁１０ｂのうち切欠き１０ｃを挟んで対向する周方向の両端縁１０ｅ，１０ｆにそれぞれ近接した２つの位置に、半径方向の内方（内側の領域３２）のベースムーブメント２に向けて突出した半円状の突出部１２ａが形成されている。これら２つの突出部１２ａ，１２ａは、いずれも保持部材１２のみに形成されていて、太陽電池１１には形成されていない。なお、各突出部１２ａ，１２ａは、それぞれの接点１０ｄ，１０ｄよりも、切欠き１０ｃに近い位置に形成されている。 Further, the solar cell member 10 is located inward (inside) in the radial direction at two positions of the C-shaped inner peripheral edge 10b, which are close to both end edges 10e and 10f in the circumferential direction facing each other with the notch 10c in between. A semicircular protrusion 12a that protrudes toward the base movement 2 in the region 32) is formed. Both of these two protrusions 12a and 12a are formed only on the holding member 12, not on the solar cell 11. The protrusions 12a and 12a are formed at positions closer to the notch 10c than the contacts 10d and 10d, respectively.

一方、ベースムーブメント２の輪列受８は、外周部分のうち、図１の平面視で太陽電池部材１０の２つの突出部１２ａ，１２ａに重なる部分に、図２に示すように、各突出部１２ａ，１２ａに電子時計１００の厚さ方向の上方から接触する庇８ａ，８ａが形成されている。庇８ａ，８ａは、各突出部１２ａ，１２ａを上方から押さえて、端縁１０ｅ，１０ｆの内周縁１０ｂ側を上方に浮き上がらせないようにしている。つまり、太陽電池部材１０の内周縁１０ｂの端縁１０ｅ，１０ｆの近くの部分が、下方に押さえられている。 On the other hand, the wheel train receiver 8 of the base movement 2 is located on the outer peripheral portion of the outer peripheral portion, which overlaps the two protruding portions 12a and 12a of the solar cell member 10 in the plan view of FIG. 1, as shown in FIG. The eaves 8a and 8a that come into contact with the electronic clock 100 from above in the thickness direction are formed on the 12a and 12a. The eaves 8a and 8a hold the protruding portions 12a and 12a from above so that the inner peripheral edges 10b side of the edge edges 10e and 10f do not rise upward. That is, the portions of the inner peripheral edge 10b of the solar cell member 10 near the edges 10e and 10f are pressed downward.

太陽電池支持枠５は、太陽電池部材１０の半径方向外側に円環状に形成されていて、全周に亘って、半径方向内側に突出した鍔５ａが形成されている。鍔５ａは、太陽電池部材１０の外周部１０ａに電子時計１００の厚さ方向の上方から接触して外周部１０ａを上方から押さえ、外周部１０ａが上方に浮き上がらないようにしている。なお、太陽電池支持枠５は、電子時計１００のケースの外周部分や文字板３の外周部に設けられることがある見返しリングなどの既存の部品などで兼用してもよい。 The solar cell support frame 5 is formed in an annular shape on the outer side in the radial direction of the solar cell member 10, and a collar 5a protruding inward in the radial direction is formed over the entire circumference. The collar 5a contacts the outer peripheral portion 10a of the solar cell member 10 from above in the thickness direction of the electronic timepiece 100 and presses the outer peripheral portion 10a from above so that the outer peripheral portion 10a does not rise upward. The solar cell support frame 5 may also be used as an existing component such as a dial ring that may be provided on the outer peripheral portion of the case of the electronic timepiece 100 or the outer peripheral portion of the dial 3.

＜電子時計の作用、効果＞
上述した本実施形態の電子時計１００によると、文字板３に太陽光等の光が入射すると、その入射した光の一部が文字板３を透過して、文字板３の下方に配置された太陽電池部材１０の太陽電池１１に入射する。太陽電池１１は、入射した光のエネルギにより電気エネルギを発生する。太陽電池１１で発生した電気エネルギは、太陽電池１１の接点１０ｄ，１０ｄに接した接点ばね（図示省略）を通じてベースムーブメント２に供給され、ベースムーブメント２を構成するモータ２２や電子回路を駆動したり、ベースムーブメント２に設けられた二次電池２１（図１参照）に蓄えられたりする。 <Action and effect of electronic clock>
According to the electronic clock 100 of the present embodiment described above, when light such as sunlight is incident on the dial 3, a part of the incident light is transmitted through the dial 3 and arranged below the dial 3. It is incident on the solar cell 11 of the solar cell member 10. The solar cell 11 generates electric energy by the energy of the incident light. The electric energy generated by the solar cell 11 is supplied to the base movement 2 through contact springs (not shown) in contact with the contacts 10d and 10d of the solar cell 11 to drive the motor 22 and electronic circuits constituting the base movement 2. , It is stored in the secondary battery 21 (see FIG. 1) provided in the base movement 2.

ここで、太陽電池部材１０は、ベースムーブメント２に対して半径方向の外方に配置されていて、ベースムーブメント２と太陽電池部材１０とは、突出部１２ａを除いて、平面視で重ならず、電子時計１００の厚さ方向に積層されない。したがって、ベースムーブメント２と太陽電池部材１０とが厚さ方向に重なる従来の太陽電池付き時計に比べて、電子時計１００の厚さを薄くすることができる。 Here, the solar cell member 10 is arranged outward in the radial direction with respect to the base movement 2, and the base movement 2 and the solar cell member 10 do not overlap in a plan view except for the protruding portion 12a. , The electronic clock 100 is not laminated in the thickness direction. Therefore, the thickness of the electronic timepiece 100 can be reduced as compared with the conventional timepiece with a solar cell in which the base movement 2 and the solar cell member 10 overlap in the thickness direction.

加えて、電子時計１００は、太陽電池部材１０の切欠き１０ｃに巻真４が通された配置であるため、太陽電池部材１０は、巻真４とも、平面視で重ならず、電子時計１００の厚さ方向に積層されない。したがって、太陽電池部材１０と巻真４とが厚さ方向に重なる、切欠き１０ｃを有しない、周方向について完全に繋がった円環状の太陽電池部材を備えた従来の太陽電池付き時計よりも、電子時計１００の厚さをさらに薄くすることができる。 In addition, since the electronic clock 100 has an arrangement in which the winding stem 4 is passed through the notch 10c of the solar cell member 10, the solar cell member 10 does not overlap with the winding stem 4 in a plan view, and the electronic clock 100 Not stacked in the thickness direction of. Therefore, it is more than a conventional timepiece with a solar cell, which has an annular solar cell member in which the solar cell member 10 and the winding stem 4 overlap in the thickness direction, do not have a notch 10c, and are completely connected in the circumferential direction. The thickness of the electronic clock 100 can be further reduced.

また、本実施形態の電子時計１００は、太陽電池部材１０の内周縁１０ｂ側に形成された突出部１２ａ，１２ａの上面がベースムーブメント２の庇８ａ，８ａに接しているため、太陽電池部材１０の端縁１０ｅ，１０ｆの内周縁１０ｂ側が上方すなわち文字板３に近づく方に浮き上がるのを防止することができる。一方、太陽電池部材１０の外周部１０ａの上面は、太陽電池支持枠５の鍔５ａに接しているため、太陽電池部材１０の外周部１０ａが上方すなわち文字板３に近づく方に浮き上がるのを防止することができる。 Further, in the electronic clock 100 of the present embodiment, since the upper surfaces of the protruding portions 12a and 12a formed on the inner peripheral edge 10b side of the solar cell member 10 are in contact with the eaves 8a and 8a of the base movement 2, the solar cell member 10 It is possible to prevent the inner peripheral edge 10b side of the edge edges 10e and 10f from rising upward, that is, toward the dial 3. On the other hand, since the upper surface of the outer peripheral portion 10a of the solar cell member 10 is in contact with the flange 5a of the solar cell support frame 5, it is possible to prevent the outer peripheral portion 10a of the solar cell member 10 from rising upward, that is, toward the dial 3. can do.

太陽電池部材１０は単体では撓み易く、仮に撓むと、光透過性を有する文字板３に近接して、文字板３を通して濃紫色の太陽電池１１が透けて見えるため、外観品質の低下を招く。特に、太陽電池部材１０は、接点ばねが接点１０ｄを文字板３の方に押圧するため、この押圧力により、太陽電池部材１０は変形する環境にある。 The solar cell member 10 is easily bent by itself, and if it is bent, the dark purple solar cell 11 can be seen through the dial 3 in the vicinity of the dial 3 having light transmission, which causes deterioration of appearance quality. In particular, in the solar cell member 10, since the contact spring presses the contact point 10d toward the dial 3, the solar cell member 10 is in an environment of being deformed by this pressing force.

しかも、本実施形態における太陽電池部材１０は、切欠き１０ｃによって全周が繋がっていないため、切欠き１０ｃが無く全周が繋がっているものに比べて剛性が低く、したがって、切欠き１０ｃが無く全周が繋がっているものに比べて撓み易い。そして、周方向の両端縁１０ｅ，１０ｆは互いに相手側に拘束されない自由端となるため、接点ばねから接点１０ｄ，１０ｄに受ける荷重によって、大きく変形し易い。 Moreover, since the solar cell member 10 in the present embodiment is not connected to the entire circumference by the notch 10c, the rigidity is lower than that of the solar cell member 10 having no notch 10c and being connected to the entire circumference. Therefore, there is no notch 10c. It is easier to bend than the one with the entire circumference connected. Since both end edges 10e and 10f in the circumferential direction are free ends that are not constrained to each other on the opposite side, they are easily deformed greatly by the load received from the contact springs on the contacts 10d and 10d.

しかし、本実施形態の電子時計１００は上述したように、太陽電池部材１０が、内周縁１０ｂの側も外周部１０ａも文字板３に近づくことが防止されているため、文字板３を通して濃紫色の太陽電池１１が透けて見えることがなく、外観品質の低下を防止することができる。なお、この効果は、太陽電池部材１０が切欠き１０ｃにより全周が繋がっていないものであるか、切欠き１０ｃが無く全周が繋がっているかに拘わらず発揮されるが、相対的に変形し易い、切欠き１０ｃがある太陽電池部材１０において、より効果的である。 However, as described above, in the electronic clock 100 of the present embodiment, since the solar cell member 10 is prevented from approaching the dial 3 on both the inner peripheral edge 10b side and the outer peripheral portion 10a, it is dark purple through the dial 3. The solar cell 11 of the above is not seen through, and deterioration of appearance quality can be prevented. It should be noted that this effect is exhibited regardless of whether the solar cell member 10 is not connected to the entire circumference by the notch 10c or is not connected to the entire circumference without the notch 10c, but is relatively deformed. It is more effective in the solar cell member 10 which is easy and has a notch 10c.

図４は、切欠き１０ｃの無い太陽電池部材１１０（切欠き１０ｃの無い太陽電池１１に相当する太陽電池１１１と、切欠き１０ｃの無い保持部材１２に相当する保持部材１１２とにより構成される）を備えた電子時計１０１を示す、図１相当の平面図である。 FIG. 4 shows a solar cell member 110 without a notch 10c (composed of a solar cell 111 corresponding to a solar cell 11 without a notch 10c and a holding member 112 corresponding to a holding member 12 without a notch 10c). It is a plan view corresponding to FIG. 1 which shows the electronic clock 101 provided with.

上述したように、本実施形態の電子時計１００における太陽電池部材１０を、図４に示す切欠き１０ｃの無い、全周が繋がった円環形状の太陽電池部材１１０に置き換えた電子時計１０１においても、太陽電池部材１１０の内周縁１１０ｂに、複数の突出部１１２ａ（電子時計１００における突出部１２ａに相当）を形成し、ベースムーブメント１０２の輪列受１０８の、各突出部１１２ａに対応する部分に庇１０８ａ（電子時計１００における庇８ａに相当）を形成した構成により、太陽電池部材１１０が、内周縁１１０ｂの側も外周部１１０ａも文字板３（図２参照）に近づくことが防止されて、文字板３を通して濃紫色の太陽電池１１１が透けて見えることがなく、外観品質が低下するのを防止することができる。 As described above, also in the electronic clock 101 in which the solar cell member 10 in the electronic clock 100 of the present embodiment is replaced with the annular solar cell member 110 having no notch 10c shown in FIG. 4 and connected all around. , A plurality of projecting portions 112a (corresponding to the projecting portions 12a in the electronic watch 100) are formed on the inner peripheral edge 110b of the solar cell member 110, and the portions of the train wheel receiver 108 of the base movement 102 corresponding to the projecting portions 112a are formed. The configuration in which the eaves 108a (corresponding to the eaves 8a in the electronic clock 100) is formed prevents the solar cell member 110 from approaching the dial 3 (see FIG. 2) on both the inner peripheral edge 110b side and the outer peripheral portion 110a. The dark purple solar cell 111 cannot be seen through the dial 3, and it is possible to prevent the appearance quality from deteriorating.

また、本実施形態の電子時計１００は、突出部１２ａが、接点１０ｄよりも、切欠き１０ｃに近い位置に形成されている。したがって、接点ばねが接点１０ｄを文字板３の方に押圧しても、各接点１０ｄ，１０ｄと対応する自由端に相当することにより大きく撓み易い端縁１０ｅ，１０ｆとの間に形成された突出部１２ａが、文字板３側への浮き上がりを防止して、端縁１０ｅ，１０ｆが大きく撓むのを有効に防止することができる。 Further, in the electronic clock 100 of the present embodiment, the protruding portion 12a is formed at a position closer to the notch 10c than the contact point 10d. Therefore, even if the contact spring presses the contact 10d toward the dial 3, the protrusions formed between the contact points 10d and 10d and the edge edges 10e and 10f which are easily bent by corresponding to the corresponding free ends. The portion 12a can prevent the dial 3 side from being lifted, and can effectively prevent the edge edges 10e and 10f from being greatly bent.

また、本実施形態の電子時計１００は、太陽電池部材１０の突出部１２ａが、太陽電池１１には形成されずに、保持部材１２のみに形成されているため、ベースムーブメント２の庇８ａを、太陽電池部材１０の太陽電池１１が配置される高さの範囲に形成することができる。これにより、太陽電池１１に突出部１２ａが形成されている場合に比べて、庇８ａの下面の高さ位置を低くすることができる。したがって、電子時計１００は、太陽電池１１に突出部１２ａが形成されている場合に比べて、電子時計１００の厚さを一層薄くすることができる。 Further, in the electronic clock 100 of the present embodiment, since the protruding portion 12a of the solar cell member 10 is not formed on the solar cell 11 but is formed only on the holding member 12, the eaves 8a of the base movement 2 is formed. It can be formed in the range of the height at which the solar cell 11 of the solar cell member 10 is arranged. As a result, the height position of the lower surface of the eaves 8a can be lowered as compared with the case where the protruding portion 12a is formed on the solar cell 11. Therefore, in the electronic clock 100, the thickness of the electronic clock 100 can be further reduced as compared with the case where the protruding portion 12a is formed in the solar cell 11.

また、本実施形態の電子時計１００は、保持部材１２が磁性材料で形成されているため、保持部材１２が、ベースムーブメント２が備えているモータ２２に対する外部磁界に対する耐磁板としても機能する。なお、太陽電池部材１０はベースムーブメント２と平面視で重ならないため、保持部材１２はベースムーブメント２に備えられたモータ２２とは積層されないが、文字板３に水平な方向の磁界に対する耐磁を発揮することができる。すなわち、電子時計は一般的に文字板に水平な方向からの磁界に対して最も弱いが、上述した構成により、そのような磁界に対して十分な耐磁を図ることができる。 Further, in the electronic clock 100 of the present embodiment, since the holding member 12 is made of a magnetic material, the holding member 12 also functions as a magnetic resistance plate against an external magnetic field with respect to the motor 22 included in the base movement 2. Since the solar cell member 10 does not overlap with the base movement 2 in a plan view, the holding member 12 is not laminated with the motor 22 provided in the base movement 2, but exhibits magnetic resistance against a magnetic field in the direction horizontal to the dial 3. can do. That is, an electronic watch is generally the weakest against a magnetic field from a direction horizontal to the dial, but the above-described configuration can provide sufficient magnetic resistance against such a magnetic field.

なお、保持部材１２が磁性材料で形成されている構成については、図４に示した電子時計１０１における保持部材１１２にも適用することができる。すなわち、電子時計１０１は、保持部材１１２が磁性材料で形成されていることにより、ベースムーブメント１０２に備えられたモータ２２に対して、文字板３に水平な方向の磁界に対して十分な耐磁性能を発揮することができる。 The structure in which the holding member 12 is made of a magnetic material can also be applied to the holding member 112 in the electronic clock 101 shown in FIG. That is, since the holding member 112 is made of a magnetic material, the electronic watch 101 has sufficient magnetic resistance against a magnetic field in the direction horizontal to the dial 3 with respect to the motor 22 provided in the base movement 102. Can be demonstrated.

本実施形態の電子時計１００は、ベースムーブメント２のモータ２２が、巻真４とは、中心Ｃを挟んで反対側の半分の領域βに配置されているため、モータ２２は、巻真４が配置された切欠き１０ｃに対しても、中心Ｃを挟んで反対側の半分の領域βに配置されていることになる。 In the electronic clock 100 of the present embodiment, the motor 22 of the base movement 2 is arranged in the half region β on the opposite side of the center C from the winding stem 4, so that the winding stem 4 of the motor 22 is arranged. Even with respect to the arranged notch 10c, it is arranged in the half region β on the opposite side of the center C.

耐磁板として機能する太陽電池部材１０の保持部材１２は、切欠き１０ｃの部分では耐磁性能が低いが、モータ２２は、切欠き１０ｃに対して、中心Ｃを挟んで反対側の領域βという、切欠き１０ｃから遠い位置に配置されている。したがって、モータ２２は、耐磁性能が相対的に低くなる切欠き１０ｃの影響を受け難く、耐磁板として機能する保持部材１２は、切欠き１０ｃがあってもモータ２２に対する耐磁性能を発揮することができる。 The holding member 12 of the solar cell member 10 that functions as a magnetic resistance plate has low magnetic resistance at the notch 10c, but the motor 22 has a region β opposite to the notch 10c with the center C in between. It is located far from the notch 10c. Therefore, the motor 22 is not easily affected by the notch 10c, which has a relatively low magnetic resistance, and the holding member 12 that functions as the magnetic resistance plate can exhibit the magnetic resistance to the motor 22 even if the notch 10c is present. can.

＜変形例＞
電子時計１００は、太陽電池部材１０が太陽電池１１と保持部材１２とが接合されたものであるが、本発明の太陽電池付き時計における太陽電池部材は、保持部材を有しない太陽電池の単体であってもよい。この場合、太陽電池の単体が、ガラスや金属等の基板を有しているものであれば、その基板を保持部材１２とみなすこともできる。電子時計１０１における太陽電池部材１１０についても同様である。 <Modification example>
In the electronic clock 100, the solar cell member 10 is a combination of the solar cell 11 and the holding member 12, but the solar cell member in the solar cell-equipped clock of the present invention is a single solar cell having no holding member. There may be. In this case, if the single solar cell has a substrate such as glass or metal, the substrate can be regarded as the holding member 12. The same applies to the solar cell member 110 in the electronic clock 101.

本実施形態の電子時計１００は、太陽電池部材１０の内周縁１０ｂの側を、内周縁１０ｂから突出した突出部１２ａをベースムーブメント２の庇８ａに引っ掛ける構成によって、内周縁１０ｂが文字板３に向けて浮き上がるのを防止したものであるが、本発明の太陽電池付き時計は、この構成を備えたものに限定されるものではなく、この構成を備えなくてもよい。例えば、実施形態の電子時計１００における突出部１２ａを庇８ａに引っ掛ける構成に代えて、ベースムーブメント２に、太陽電池部材１０の内周縁１０ｂの側に突出した突出部を形成して、そのベースムーブメント２に形成された突出部が太陽電池部材１０の内周縁１０ｂを下方に押さえるようにしてもよい。 In the electronic clock 100 of the present embodiment, the inner peripheral edge 10b is attached to the dial 3 by hooking the side of the inner peripheral edge 10b of the solar cell member 10 on the eaves 8a of the base movement 2 by hooking the protruding portion 12a protruding from the inner peripheral edge 10b on the eaves 8a of the base movement 2. Although it is prevented from floating toward the surface, the clock with a solar cell of the present invention is not limited to the one having this configuration, and may not be provided with this configuration. For example, instead of the configuration in which the protruding portion 12a of the electronic watch 100 of the embodiment is hooked on the eaves 8a, the base movement 2 is formed with a protruding portion protruding toward the inner peripheral edge 10b of the solar cell member 10, and the base movement thereof is formed. The protruding portion formed in 2 may press the inner peripheral edge 10b of the solar cell member 10 downward.

また、ベースムーブメント２とは別に備えた、鍔が付いたピンやねじなどの他の拘束手段を用いて、突出部１２ａをベースムーブメント２に拘束する構成により、太陽電池部材１０の内周縁１０ｂの、特に端縁１０ｅ，１０ｆの近くの部分を下方に押さえて、文字板３に向けて浮き上がるのを防止してもよい。 Further, the inner peripheral edge 10b of the solar cell member 10 is configured to restrain the protruding portion 12a to the base movement 2 by using another restraining means such as a pin or a screw having a collar provided separately from the base movement 2. In particular, the portions near the edge edges 10e and 10f may be pressed downward to prevent them from rising toward the dial 3.

なお、太陽電池部材１０の外周部１０ａに突出部１２ａを形成し、この突出部１２ａを太陽電池支持枠５の鍔５ａに引っ掛けて、太陽電池部材１０の外周側が文字板３の側に浮き上がるのを防止してもよい。 A protrusion 12a is formed on the outer peripheral portion 10a of the solar cell member 10, and the protruding portion 12a is hooked on the collar 5a of the solar cell support frame 5, so that the outer peripheral side of the solar cell member 10 rises toward the dial 3. May be prevented.

本実施形態の電子時計１００は、各突出部１２ａがそれぞれ、接点１０ｄよりも切欠き１０ｃに近い位置に形成されているが、本発明の太陽電池付き時計は、この構成に限定されるものではなく、各突出部１２ａがそれぞれ、接点１０ｄよりも切欠き１０ｃから遠い位置に形成されていてもよいし、また、接点１０ｄが形成されていなくてもよい。 In the electronic timepiece 100 of the present invention, each protrusion 12a is formed at a position closer to the notch 10c than the contact point 10d, but the timepiece with a solar cell of the present invention is not limited to this configuration. Instead, each protrusion 12a may be formed at a position farther from the notch 10c than the contact 10d, or the contact 10d may not be formed.

上述した実施形態は、時刻の指針をモータ２２で駆動する、いわゆる電子時計１００であるが、本発明に係る太陽電池付き時計は電子時計に限定されるものではなく、時刻の指針をぜんまいなどの機械の動力源を用いて駆動する機械式時計に適用することもできる。
ただし、機械式時計の場合であっても、太陽電池部材で発電された電力を用いて駆動される電子機器（液晶表示装置など）を備えているものに適用される。 The above-described embodiment is a so-called electronic clock 100 in which the time pointer is driven by the motor 22, but the clock with a solar cell according to the present invention is not limited to the electronic clock, and the time pointer is not limited to the electronic clock. It can also be applied to mechanical watches driven by the power source of a machine.
However, even in the case of a mechanical timepiece, it is applied to a timepiece equipped with an electronic device (such as a liquid crystal display device) driven by using the electric power generated by the solar cell member.

上述した実施形態は、本発明における外部操作部材の一例として巻真４を適用したものであるが、本発明に係る太陽電池付き時計は、外部操作部材として巻真を適用したものに限定されず、例えば、プッシュボタンなど、主に時計のケースに設けられてベースムーブメントまで延びた種々の外部操作部材を適用することができる。 In the above-described embodiment, the winding stem 4 is applied as an example of the external operating member in the present invention, but the timepiece with a solar cell according to the present invention is not limited to the one to which the winding stem is applied as the external operating member. For example, various external operating members such as push buttons, which are mainly provided in the case of the watch and extend to the base movement, can be applied.

なお、上述した実施形態においては、ベースムーブメント２の輪列受８，１０８に庇８ａ，１０８ａを形成した構成であるが、本発明における庇は、輪列受に形成したものに限定されず、ベースムーブメントを構成するいずれかの部品に形成されていればよい。 In the above-described embodiment, the eaves 8a and 108a are formed on the train wheel receivers 8 and 108 of the base movement 2, but the eaves in the present invention are not limited to those formed on the wheel train receivers. It may be formed on any of the components constituting the base movement.

１ムーブメント
２ベースムーブメント
３文字板
４巻真
５太陽電池支持枠
５ａ鍔
８輪列受
８ａ庇
１０太陽電池部材
１０ｃ切欠き
１１太陽電池
１２保持部材
１２ａ突出部
１００電子時計（太陽電池付き時計）
Ｃ中心
1 Movement 2 Base movement 3 Dial 4 Winding true 5 Solar cell support frame 5a Collar 8 Wheel train receiver 8a Eaves 10 Solar cell member 10c Notch 11 Solar cell 12 Holding member 12a Protruding part 100 Electronic clock (clock with solar cell)
C center

Claims

With the base movement
A dial with light transmission and
A solar cell member located radially outward of the base movement and below the dial.
The solar cell member includes a solar cell and a holding member that is laminated on the surface of the solar cell on the side far from the dial and holds the solar cell .
The solar cells are placed within the height range in which the base movement is placed.
Only before Symbol holding member, protrusion out collision radially towards the base movement is formed,
The base movement is a watch with a solar cell that holds the solar cell member downward by pressing the protruding portion from above the solar cell member.