JPS6124949Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案はカレンダー付腕時計における日板の断
面配置構造に関するものである。[Detailed Description of the Invention] The present invention relates to a cross-sectional arrangement structure of a date plate in a wristwatch with a calendar.

従来カレンダー付腕時計の日板配置の構造は、
針回シおよびカレンダー早修正時に使用する巻真
に係合するツヅミ車とカレンダーを表示する日板
とは断面的に逃げるか平面的に重ならない様にし
ていた。しかし近来の腕時計の薄型小型化の傾向
から考え、ツヅミ車をいかにして文字板に近く断
面配置し、かつ日板とぷつからないようにするか
が、その腕時計のムーブメント厚の薄型化を達成
する大きな要因の一つであり、またツヅミ車を文
字板に近く断面配置することにより必然的に巻真
位置も文字板に近くなりケースデザイン上非常に
スマートに出来る事は広く知られているものであ
る。 The structure of the date plate arrangement of conventional calendar watches is as follows:
The dial wheel that engages with the winding stem used when turning the needle and quickly adjusting the calendar and the date plate that displays the calendar are separated in cross section or are made so that they do not overlap in plane. However, considering the recent trend towards thinner and smaller wristwatches, we were able to reduce the thickness of the watch movement by arranging the cross section of the Tsuzumi wheel close to the dial and keeping it from touching the date dial. It is also widely known that by arranging the cross section of the Tsuzumi wheel close to the dial, the winding stem will naturally be positioned closer to the dial, resulting in a very smart case design. It is.

本考案は前述観点に鑑み、巻真に係合するツヅ
ミ車の中央部溝に日板の一部分を断面的に入り込
ませる事により、ツヅミ車を文字板近くに断面配
置する事が可能となり、これにより巻真の断面位
置を文字板側に極力近ずける様な配置ができ、外
装デザイン上、薄型カレンダー付腕時計のデザイ
ンを行うのに優れた巻真位置がとり得る日板配置
構造を得るものであり、外観上薄型カレンダー付
腕時計を容易に提供する事が出来る利点がある。 In consideration of the above, this device has been developed by inserting a portion of the date plate cross-sectionally into the central groove of the winding stem that engages with the winding stem, making it possible to position the winding wheel cross-sectionally close to the dial. This allows the cross-sectional position of the winding stem to be positioned as close as possible to the dial, resulting in a date plate arrangement structure that allows for an excellent winding stem position in terms of exterior design, which is ideal for designing a slim calendar watch, and has the advantage of making it easy to provide a slim calendar watch in appearance.

更に、本考案をより一層把握する意味から本考
案の実施例を説明するに先立ち、従来の構造を、
第１図により説明する。 Furthermore, before explaining the embodiments of the present invention in order to better understand the present invention, the conventional structure will be explained as follows.
This will be explained with reference to FIG.

第１図は従来の裏回り、および日板配置構造を
示す要部断面図であり、１は地板、２は裏押え、
３は巻真、４は巻真３の溝３ａと係合するオシド
リ、５はツヅミ車で巻真３の角部３ｂと係合し、
巻真３の操作により、オシドリ４とカンヌキ６に
より作動し、ツヅミ車５は小鉄車９と噛合い巻真
３を回転する事により腕時計の針合せを行う事が
出来る。また日板７、の修正はツヅミ車５が早修
正伝え車１１と噛合い巻真３を、回転する事によ
り早修正車１２、の突起１２ａと係合する早修正
レバー１３、により日板７の歯部７ａを送り日付
を変更するものである。１０はカレンダープレー
ト、８は日板７および早修正レバー１３等を押え
るための日板押えであり、１４は文字板である。 FIG. 1 is a cross-sectional view of the main parts showing the conventional back side and date plate arrangement structure, where 1 is the main plate, 2 is the back presser,
3 is a winding stem, 4 is a mandarin wheel that engages with the groove 3a of the winding stem 3, and 5 is a screw wheel that engages with the corner portion 3b of the winding stem 3.
When the winding stem 3 is operated, the mandrel 4 and the cannula 6 are operated, and the dial wheel 5 meshes with the small iron wheel 9 and rotates the winding stem 3, thereby making it possible to set the hands of the wristwatch. Further, the date plate 7 is corrected by the quick correction lever 13 which engages with the protrusion 12a of the quick correction wheel 12 when the adjustment wheel 5 rotates the winding stem 3 which engages with the quick correction transmission wheel 11. The date can be changed by moving the tooth 7a. 10 is a calendar plate, 8 is a date plate holder for holding down the date plate 7, quick correction lever 13, etc., and 14 is a dial plate.

従つて、従来の日板配置構造では、ツヅミ車５
と日板７の間にかなりの断面スペースＡを必要と
するため、巻真３から文字板１４までの距離Ｈは
長くなつてしまい、外装構造上、どうしても、デ
ザイン面で薄型ケースのデザインを行う事がむず
かしく最大の欠点となつていた。 Therefore, in the conventional date plate arrangement structure, the Tsuzumi wheel 5
Since a considerable cross-sectional space A is required between the dial 7 and the date plate 7, the distance H from the winding stem 3 to the dial 14 becomes long, and due to the exterior structure, it is necessary to design a thin case in terms of design. Things were difficult and this was the biggest drawback.

次に本考案の実施例を図面に基ずき説明する。
第２図は本考案の実施例を示す要部断面図であ
り、２１は地板、２２は輪列受、２３は巻真、２
４は巻真２３の溝２３ａと係合するオシドリ、２
５はツヅミ車で巻真２３の角部２３ｂと係合し、
巻真２３の操作により、オシドリ２４はオシドリ
軸（図示せず）を中心として回動するものであ
る。２７は日板２６と小鉄車２８の両方を支えて
いる日板押えである。２９は輪列受２２に押込み
固定されているツヅミ車受ビヨウで、巻真操作に
よるカレンダーの早修正時および針回シ時の、小
鉄車２８からの噛合によるスラスト方向の力をツ
ヅミ車溝側面２５ｂに当て受けているものであ
り、ツヅミ車２５のアオリを少なくすることが出
来小鉄車２８とツヅミ車２５の噛合いを確実に行
う事が出来、巻真２３の回転トルクの安定化を計
るものである。また巻真２３の着脱の際のツヅミ
車２５の断面方向の脱落防止を日板２６と日板押
エ２７と輪列受２２との空間を減らす薄型化構造
によつて行なつているものである。日板２６はツ
ヅミ車の溝部２５ａにA′量だけ断面的に入り込
ませる事により、巻真２３の断面位置を文字板３
０側へ極力接近させる様に、距離H′を短かく配
置した事により、外装デザイン上、巻真２３に装
置されているリユーズ（図示せず）の位置が、ケ
ース裏ブタ（図示せず）下面より高い位置にな
り、薄型カレンダー付腕時計のデザインを行う事
が大変有利になり、薄型カレンダー付腕時計を一
般消費者に容易に提供する事が出来るものであ
る。 Next, embodiments of the present invention will be described based on the drawings.
FIG. 2 is a cross-sectional view of main parts showing an embodiment of the present invention, in which 21 is a main plate, 22 is a gear train bridge, 23 is a winding stem, 2
4 is a mandrel that engages with the groove 23a of the winding stem 23;
5 is a Tsuzumi wheel that engages with the corner 23b of the winding stem 23;
By operating the winding stem 23, the mandarin duck 24 rotates around a mandarin duck shaft (not shown). 27 is a date plate holder that supports both the date plate 26 and the small iron car 28. Reference numeral 29 denotes a suspension wheel holder which is pushed into and fixed to the train wheel holder 22. When the calendar is quickly corrected by operating the winding stem or when the hands are rotated, the force in the thrust direction due to the meshing of the small iron wheel 28 is transferred to the side surface of the wheel groove. 25b, it is possible to reduce the tilt of the tension wheel 25, ensure the meshing of the small iron wheel 28 and the tension wheel 25, and stabilize the rotating torque of the winding stem 23. It is something. Furthermore, when the winding stem 23 is attached or removed, the winding wheel 25 is prevented from falling off in the cross-sectional direction by a thin structure that reduces the space between the date plate 26, date plate presser 27, and train wheel bridge 22. be. By inserting the date plate 26 into the groove 25a of the Tsuzumi wheel by an amount A', the cross-sectional position of the winding stem 23 can be adjusted to the dial 3.
Due to the exterior design, the position of the reuse (not shown) installed on the winding stem 23 is closer to the case back cover (not shown) due to the exterior design. The position is higher than the bottom surface, which makes it very advantageous to design a thin calendar wristwatch, and it is possible to easily provide a thin calendar wristwatch to general consumers.

又、本実施例のツヅミ車２５は常時小鉄車２８
と噛合つているため、カンヌキ等の操作部材が不
必要となり、ツヅミ車２５の溝部２５ａの巻真軸
２３方向長さを、日板２６の歯部２６ａの歯丈近
くまで短く設定することが出来、ツヅミ車２５全
体の巻真２３軸方向長さも短くすることが可能と
なり、時計の直径方向のサイズを小さくすること
も出来るものである。 Moreover, the Tsuzumi car 25 of this embodiment is always the small iron car 28.
Because of this, there is no need for an operating member such as a bolt, and the length of the groove portion 25a of the dial wheel 25 in the direction of the winding stem axis 23 can be set short to be close to the tooth height of the tooth portion 26a of the date plate 26. The length of the entire winding wheel 25 in the axial direction of the winding stem 23 can also be shortened, and the size of the watch in the diametrical direction can also be reduced.

以上説明した様に本考案は巻真に係合するツヅ
ミ車を使用し、ツヅミ車の溝部へ日板の一部分を
断面的に入り込ませるとともに、ツヅミ車を常時
小鉄車と噛合するように構成したので、巻真位置
を文字板側へ近接させる事が可能となり極薄型の
カレンダー付腕時計を容易に提供出来且つ、該時
計を小型化することも出来る等、実用上多大な効
果を上げる事が出来る。 As explained above, the present invention uses a Tsuzumi wheel that engages with the winding stem, and a part of the date plate is inserted cross-sectionally into the groove of the Tsuzumi wheel, and the Tsuzumi wheel is configured to always mesh with the small iron wheel. Therefore, it is possible to move the winding stem closer to the dial side, and it is possible to easily provide an ultra-thin calendar wristwatch, and the watch can also be made smaller, resulting in great practical effects. .

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の裏回りおよび日板配置構造を示
す要部断面図、第２図は本考案の実施例を示す要
部断面図である。 ２１……地板、２２……輪列受、２３……巻
真、２４……オシドリ、２５……ツヅミ車、２５
ａ……溝部、２６……日板、２６ａ……歯部、２
７……日板押え、２８……小鉄車、２９……ツヅ
ミ車受ビヨウ、３０……文字板。 FIG. 1 is a sectional view of a main part showing a conventional back side and date plate arrangement structure, and FIG. 2 is a sectional view of a main part showing an embodiment of the present invention. 21... Main plate, 22... Gear train bridge, 23... Winding stem, 24... Mandarin duck, 25... Tsuzumi wheel, 25
a...Groove portion, 26...Date plate, 26a...Tooth portion, 2
7... Date plate holder, 28... Kotetsu car, 29... Tsuzumi car support, 30... Dial plate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 巻真と、該巻真に係合するツヅミ車の溝部に、
日板の一部を断面的に入り込ませて配置し、且つ
前記ツヅミ車を常時小鉄車と噛合するように構成
した事を特徴とするカレンダー付腕時計の日板配
置構造。 In the groove of the winding stem and the Tsuzumi wheel that engages with the winding stem,
A date plate arrangement structure for a wristwatch with a calendar, characterized in that a part of the date plate is arranged in a cross-sectional manner, and the Tsuzumi wheel is always engaged with a small iron wheel.