JPS61253488A - Gear wheel construction - Google Patents

Gear wheel construction

Info

Publication number
JPS61253488A
JPS61253488A JP60095018A JP9501885A JPS61253488A JP S61253488 A JPS61253488 A JP S61253488A JP 60095018 A JP60095018 A JP 60095018A JP 9501885 A JP9501885 A JP 9501885A JP S61253488 A JPS61253488 A JP S61253488A
Authority
JP
Japan
Prior art keywords
gear
pinion
tooth profile
gears
gap
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.)
Pending
Application number
JP60095018A
Other languages
Japanese (ja)
Inventor
Minoru Watanabe
渡邊　實
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP60095018A priority Critical patent/JPS61253488A/en
Publication of JPS61253488A publication Critical patent/JPS61253488A/en
Pending legal-status Critical Current

Links

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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/027—Wheels; Pinions; Spindles; Pivots planar toothing: shape and design
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To enable a thinner timepiece body, by arranging a gap between the center hole section of a gear and the tooth profile of a pinion in a gear wheel over the entire circumference thereof. CONSTITUTION:A concave part is provided at one point of the center hole of a fifth gear wheel 1 and when combined with a fifth pinion 2, a gear 1 is meshed with the tooth profile of the pinion 2 to transmit the rotation torque thereof to the tooth profile of the pinion 2. A gap is arranged between the center hole section of the gear 1 and the tooth profile of the pinion 2 to make the gear 1 freely movable in the axial direction of the pinion 2 so that it will not block the rotation when getting in contact with the gears of other adjacent gear wheels. The thickness-wise gap between the gears is packed to the area where the gears of the wheel trains contact one another to reduce the thickness of the gear wheel trains of a timepiece body, thereby enabling a thinner timepiece body.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はアナログ表示式時計の番車構造に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a number wheel structure for an analog display type timepiece.

〔発明の低壁〕[Low wall of invention]

本発明はアナログ表示式時計の番車に於て、番車を構成
する歯車とかなとを独立分離させ、且つかなの歯形部と
歯車の中心穴部との間に、全周に亘ＤＩ！Ｊ間を設ける
ことにより歯車のかなに対する自由度を増し隣接する歯
車同志の厚み方向の隙間を少なくする事により、より薄
型時計を供給することを可能にしたものである。In the dial of an analog display type watch, the present invention separates the gear and pinion that make up the dial independently, and also provides DI! between the tooth profile of the pinion and the center hole of the gear over the entire circumference. By providing the J gap, the degree of freedom regarding the pinion of the gears is increased, and by reducing the gap between adjacent gears in the thickness direction, it is possible to provide a thinner watch.

〔従来の技術〕[Conventional technology]

従来の番車の構造は、五番車を代表例にすれば第２図に
示す様に、五番歯車１と五番かな２とを押込み又はかし
め等の方法で固定し五番車一体部品として時計体へ組み
込んでいた。Taking the fifth wheel as a typical example, the structure of a conventional number wheel is as shown in Fig. 2, in which the fifth gear 1 and the fifth pinion 2 are fixed by pushing or caulking to form an integral part of the fifth wheel. It was incorporated into the watch body.

〔発明が解決しようとする問題点及び目的〕しかし、従
来の番車構造は、歯車をかなへ押込み又はかしめ等の方
法によシ強制固定するため、歯車が変形し反りが発生す
る。従って、番車を隣合わせで並べ番車列を構成する場
合、番車の歯車同志の憬れによる時計の止まシを防止す
るため歯車間の隙間が歯車の反シ分必要となシ、番車列
が多い場合には、必要隙間が本積され、全体として馬鹿
にならない寸法となシ１時計体の総厚を厚くする一要因
となっていた。[Problems and Objectives to be Solved by the Invention] However, in the conventional number wheel structure, the gear is forcibly fixed by a method such as pushing into a pinion or caulking, which causes the gear to deform and warp. Therefore, when the number wheels are arranged next to each other to form a number wheel train, the gap between the gears is required to be equal to the distance between the gears in order to prevent the clock from stopping due to friction between the gears of the number wheel. If there is a large number of gaps, the necessary clearances are increased, and this becomes one factor in increasing the total thickness of the watch body, making the overall dimensions unreasonable.

そこで本発明は、このような問題点を解決するもので、
その目的とするところは、歯車の反りを押え、且つ歯車
のかなに対する自由度を増すことにより、歯車同志が互
いに接触しても止まシに影響する程のブレーキとならな
い様にしたもので、よシ薄型の時計体を提供するところ
にある。Therefore, the present invention aims to solve these problems.
The purpose of this is to suppress the warpage of the gears and increase the degree of freedom for the gear pinions, so that even if the gears come into contact with each other, it will not act as a brake to the extent that it will affect the stopper. The key point is that it provides a thin watch body.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の番車構造は、独立分離した歯車と、かなから構
成された番車であり、且つ歯車の中心部の１箇所以上に
凸部を設け、且つ歯車とかなか組合わされた時、かなの
歯形部と歯車の中心穴部との間に全周に亘り隙間を設け
ることを特徴とする。The number wheel structure of the present invention is a number wheel composed of an independently separated gear and a pinion, and a convex portion is provided at one or more places in the center of the gear, and when combined with the gear, a pinion is formed. A feature is that a gap is provided between the tooth profile and the center hole of the gear over the entire circumference.

〔作用〕[Effect]

不発明の上記の構成によれば、歯車とかなか組合わされ
た時、歯車からの回転トルクを歯車の中心穴部の凸部が
かなの歯形部に伝えかなを回転させる。又歯車がかなの
軸方向に対して自由であるため、隣接の他の番車の歯車
と接触した場合でも歯車がかなの軸方向へ移動し回転を
妨げられない。According to the above-described uninvented structure, when the gear is combined with a gear, the convex portion of the center hole of the gear transmits the rotational torque to the tooth profile of the pinion, thereby rotating the pinion. Furthermore, since the gear is free in the axial direction of the pinion, even if it comes into contact with the gear of another adjacent pinion, the gear moves in the axial direction of the pinion and rotation is not hindered.

〔実施例〕〔Example〕

第１図ａ、ｂ、Ｏは、本発明の実刑例であり、第１図ａ
は、五番歯車１と五番かな２とを組合わせた時の斜視図
であり、第１図す、Ｃは五番車を構成する独立分離した
五番かなと五番歯車である。Figures 1a, b, and O are examples of actual punishment according to the present invention, and Figure 1a
is a perspective view when the fifth gear 1 and the fifth pinion 2 are combined, and C in FIG. 1 is the independently separated fifth pinion and fifth gear that constitute the fifth wheel.

五番歯車１の中心穴部に１箇所の凸部を設けてあシ五番
かな２と組合わせた時、五番かな２の歯形と噛み合い五
番歯車１．からの回転トルクを五番かな２の歯形に伝え
る構造としである。又五番歯車１の中心穴部と五番かな
２の歯形との間に、全周に亘シ隙間を設けであるため五
番歯車１が五番かな２の軸方向に自由に移動することが
出来る。When a convex portion is provided in the center hole of the fifth gear 1 and combined with the fifth pinion 2, the fifth gear 1 meshes with the tooth profile of the fifth pinion 2. It has a structure that transmits the rotational torque from the 5th pinion to the 2nd tooth profile. Also, since a gap is provided all around the circumference between the center hole of the fifth gear 1 and the tooth profile of the fifth pinion 2, the fifth gear 1 can freely move in the axial direction of the fifth pinion 2. I can do it.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明によれば、番車列のお互いの歯
車が接触する領域まで歯車間の厚み方向の隙間を詰める
ことにより時計体の番車列の厚みを減少させる事が可能
となシ、よシ薄型の時計体を供給する事が出来るという
効果を有する。As described above, according to the present invention, it is possible to reduce the thickness of the number wheel train of a watch body by closing the gaps in the thickness direction between the gears up to the area where the gears of the number wheel train contact each other. This has the effect of being able to provide a very thin watch body.

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

′Ｍ１９図ａ、ｂ、ｃは、本発明の番車構造の一冥怖例
を示すものであり、第１図ａは、組合わせ時の五番車斜
視図、第１図すは、五番かな斜視図。 第１図Ｃは、五番歯車斜視図。 ＷＪ２図は、従来の五番車断面図である。 １・・・五番歯車 ２・・・五番かな 以　　　上'M19 Figures a, b, and c show one example of the second wheel structure of the present invention, and Figure 1 a is a perspective view of the fifth wheel when assembled; A perspective view. FIG. 1C is a perspective view of the fifth gear. Figure WJ2 is a sectional view of a conventional fifth wheel. 1...Fifth gear 2...Fifth Kana or above

Claims (1)

【特許請求の範囲】[Claims] （１）少なくとも２つ以上の番車列を有するアナログ表
示式時計に於て、該番車列の中の１つ以上の番車が独立
分離した歯車とかなから構成され、且つ該歯車の中心穴
部の１箇所以上に凸部を設け、かつ該歯車と該かなが組
合わされた時、該かなの歯形部と該歯車の中心穴部との
間に全周に亘り隙間を設けることを特徴とする番車構造
。(1) In an analog display type watch having at least two or more number wheel trains, one or more of the number wheels in the number wheel train consists of an independently separated gear or pinion, and the center of the gear wheel A convex portion is provided at one or more places in the hole, and when the gear and the pinion are combined, a gap is provided around the entire circumference between the tooth profile of the pinion and the center hole of the gear. A number wheel structure.
JP60095018A 1985-05-02 1985-05-02 Gear wheel construction Pending JPS61253488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60095018A JPS61253488A (en) 1985-05-02 1985-05-02 Gear wheel construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60095018A JPS61253488A (en) 1985-05-02 1985-05-02 Gear wheel construction

Publications (1)

Publication Number Publication Date
JPS61253488A true JPS61253488A (en) 1986-11-11

Family

ID=14126295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60095018A Pending JPS61253488A (en) 1985-05-02 1985-05-02 Gear wheel construction

Country Status (1)

Country Link
JP (1) JPS61253488A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035539A1 (en) * 1998-01-07 1999-07-15 Seiko Instruments Inc. Transmission gear, method of manufacturing the same, and automatically wound gear train structure
EP2154582A1 (en) * 2008-08-15 2010-02-17 Nivarox-FAR S.A. Gear method for a clock piece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035539A1 (en) * 1998-01-07 1999-07-15 Seiko Instruments Inc. Transmission gear, method of manufacturing the same, and automatically wound gear train structure
EP2154582A1 (en) * 2008-08-15 2010-02-17 Nivarox-FAR S.A. Gear method for a clock piece
WO2010018051A1 (en) * 2008-08-15 2010-02-18 Nivarox-Far S.A. Gearing system for a timepiece
US9310770B2 (en) 2008-08-15 2016-04-12 Nivarox-Far S.A. Gear system for a timepiece

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