JP2002207086A - Timepiece - Google Patents
TimepieceInfo
- Publication number
- JP2002207086A JP2002207086A JP2001004063A JP2001004063A JP2002207086A JP 2002207086 A JP2002207086 A JP 2002207086A JP 2001004063 A JP2001004063 A JP 2001004063A JP 2001004063 A JP2001004063 A JP 2001004063A JP 2002207086 A JP2002207086 A JP 2002207086A
- Authority
- JP
- Japan
- Prior art keywords
- needle seat
- needle
- timepiece
- rotating shaft
- hole
- 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
Links
Landscapes
- Electromechanical Clocks (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、針のふらつきを
防止する時計に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece for preventing wobbling of a hand.
【0002】[0002]
【従来の技術】図3は、一般的な時計の機構を示す断面
図である。図4は、図3の要部を示す拡大断面図であ
る。この時計では、文字盤側に配置する地板1と、裏ぶ
た側に配置する輪列受2と、前記地板1と前記輪列受2
との間に配置する第二地板3とによって、分針4や時針
5等の針を駆動する駆動機構を支持している。2. Description of the Related Art FIG. 3 is a sectional view showing a general timepiece mechanism. FIG. 4 is an enlarged sectional view showing a main part of FIG. In this timepiece, a main plate 1 arranged on the dial side, a train wheel bridge 2 arranged on the back cover side, the main plate 1 and the train wheel bridge 2 are arranged.
A driving mechanism for driving hands such as the minute hand 4 and the hour hand 5 is supported by the second main plate 3 disposed between the first and second base plates.
【0003】前記地板1と前記第二地板3は、コイルブ
ロック6とステータ7とを支持している。また、前記地
板1と輪列受2は、前記ステータ7に対向させて回転自
在にロータ8を軸支し、このロータ8からの回転力を伝
達される三番車9と二番車10と日の裏車11と筒車1
2とを軸支している。また、表示車受13が地板1に取
り付けられている。[0003] The base plate 1 and the second base plate 3 support a coil block 6 and a stator 7. The main plate 1 and the train wheel bridge 2 rotatably support the rotor 8 in opposition to the stator 7, and a third wheel 9 and a second wheel 10 to which the rotational force from the rotor 8 is transmitted. Hour wheel 11 and hour wheel 1
2 is supported. In addition, a display wheel support 13 is attached to the main plate 1.
【0004】上述のように、軸支された駆動機構の各車
および軸では、分針4や時針5等の針を駆動すると、ふ
らつきが生じてしまう。特に、キャラクター図柄などの
自重が重い針の場合には、そのふらつきが大きくなって
しまう。このため、第二地板3と筒車12との間に針座
14を配置し、筒車12に押圧をかけ、ふらつきを抑え
て運針むらを抑制するようにした構造が知られている。As described above, in each wheel and axle of the drive mechanism supported by the shaft, wobbling occurs when the hands such as the minute hand 4 and the hour hand 5 are driven. In particular, in the case of a needle having a heavy self-weight such as a character design, the wobble becomes large. For this reason, a structure is known in which the needle seat 14 is disposed between the second main plate 3 and the hour wheel 12 to apply pressure to the hour wheel 12 so as to suppress wobble and thereby to prevent uneven hand movement.
【0005】図5は、従来の針座を説明する説明図であ
る。(a)に針座の平面、(b)に取付時の側面を示
す。この針座14は、薄板状のリング状の円形部材であ
る。この針座14は、中央部分の穴部14aを車軸部1
2a、に挿入して、上から受部材(図示せず)を針座1
4が塑性変形しない程度の隙間をあけて固定している。FIG. 5 is an explanatory view for explaining a conventional needle seat. (A) shows a plane of the needle seat, and (b) shows a side surface at the time of mounting. This needle seat 14 is a thin ring-shaped circular member. The needle seat 14 has a hole 14a in the center portion and
2a, and insert a receiving member (not shown) from above into the needle seat 1
4 is fixed with a gap that does not cause plastic deformation.
【0006】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の時計では、組立時において、車軸部の丈が短い場合
には、針座組み込み後、受部材を組み込むまで安定しな
いので、静電気などで針座が飛んでしまう問題があっ
た。このため、組立時間が長くなり、コストが高くなる
問題があった。また、捨て注油にり針座を車にリンキン
グさせて安定させるようにして組み立てる方法が知られ
ている。しかしながら、この場合でも、組立工数が増え
てコストが高くなる問題があった。さらに、この場合に
は、油過多になってしまうこともあり、止り具合が悪く
外れてしまうこともあった。However, in the conventional timepiece described above, if the length of the axle is short at the time of assembling, the needle seat is not stable until the receiving member is installed after the needle seat is assembled. Had the problem of flying. For this reason, there has been a problem that the assembling time is long and the cost is high. Also, there is known a method of assembling the vehicle by linking the needle seat to a car and stabilizing the disc by lubricating. However, even in this case, there is a problem that the number of assembling steps increases and the cost increases. Further, in this case, the amount of oil may be excessive, and the stopping condition may be poor and may come off.
【0007】そこで、この発明は、上記に鑑みてなされ
たものであって、組立作業時に、針座を確実に組み込め
るようにして、低コスト化を図る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 that can reliably incorporate a needle seat at the time of an assembling operation to reduce the cost.
【0008】[0008]
【課題を解決するための手段】上述の目的を達成するた
めに、この発明は針を取り付けて前記針を回転させる回
転軸体と、前記回転軸体をくわえ込んで固定するくわえ
込み部を有する針座と、を有する時計である。針座にく
わえ込み部を設けることにより、回転軸体に対して確実
に針座を組み込むことができる。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention has a rotary shaft for attaching a needle and rotating the needle, and a grip portion for gripping and fixing the rotary shaft. And a handpiece. By providing the holding portion on the needle seat, the needle seat can be reliably incorporated into the rotary shaft body.
【0009】また、この発明は、前記くわえ込み部が、
前記針座の中央穴部の内周部に設けた突起部であり、前
記針座を前記回転軸体に軸支する際に、前記突起部が前
記回転軸体を弾性変形させてくわえ込む時計である。Further, according to the present invention, the grip portion includes:
A clock provided on an inner peripheral portion of a center hole of the needle seat, wherein the projection elastically deforms and holds the rotary shaft when the needle seat is pivotally supported on the rotary shaft. It is.
【0010】また、前記くわえ込み部が、前記針座の幅
方向に狭い部分の面であり、前記針座を前記回転軸体に
軸支する際に、前記面を平面的に弾性変形させて前記回
転軸体をくわえ込む時計である。Further, the grip portion is a surface of a portion narrow in the width direction of the needle seat, and when the needle seat is pivotally supported on the rotary shaft, the surface is elastically deformed in a plane. This is a timepiece in which the rotating shaft is held.
【0011】[0011]
【発明の実施の形態】以下、この発明につき図面を参照
しつつ詳細に説明する。なお、この実施の形態によりこ
の発明が限定されるものではない。また、時計の機構
は、従来と同様であり、同一部品には同一符号を付す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. The present invention is not limited by the embodiment. The mechanism of the timepiece is the same as that of the conventional one, and the same components are denoted by the same reference numerals.
【0012】(実施の形態1)図1は、この発明の実施
の形態1の針座の固定構造を説明する説明図である。(Embodiment 1) FIG. 1 is an explanatory view for explaining a needle seat fixing structure according to Embodiment 1 of the present invention.
【0013】(a)に針座の平面、(b)に取付時の側
面を示す。この針座18は、薄板状のリング状の円形部
材である。この針座18は、中央部分に穴部18aを穿
ってある。特に、この穴部18aには、針座18側から
穴部18aに向かって突出部18b、18c、18dを
突出させてある。この突出部18b、18c、18d
は、いずれも車軸部12aの外径よりも中心側に位置す
る長さに成形してある。(A) shows a plane of the needle seat, and (b) shows a side surface at the time of mounting. The needle seat 18 is a thin ring-shaped circular member. The needle seat 18 has a hole 18a in the center. In particular, projecting portions 18b, 18c, 18d project from the needle seat 18 toward the hole 18a from the hole 18a. The projections 18b, 18c, 18d
Are formed to have a length located on the center side of the outer diameter of the axle portion 12a.
【0014】上述の構成の針座18では、組立時に、中
央部分の穴部18aを車軸部12aに挿入すると、突出
部18b、18c、18dが、車軸部12aを押さえ付
ける。つまり、針座18は、押さえ付けた時の反作用に
よる力が加わり、車軸部12aをくわえ込んで静電気な
どのよる飛びを防止することとなる。このように、車軸
部12aをくわえ込んだ状態で、上から受部材(図示せ
ず)を針座18が塑性変形しない程度の隙間をあけて固
定して、組み立てていく。In the needle seat 18 having the above-described structure, when the hole 18a in the center portion is inserted into the axle portion 12a during assembly, the protruding portions 18b, 18c, 18d press the axle portion 12a. In other words, the force due to the reaction when the needle seat 18 is pressed is applied to the needle seat 18 to hold the axle portion 12a and prevent the needle seat 18 from flying due to static electricity or the like. In this manner, with the axle portion 12a held, the receiving member (not shown) is fixed from above with a gap such that the needle seat 18 is not plastically deformed, and assembled.
【0015】なお、針座18は、腕時計などの小型な時
計の場合には、厚さ約0.02〜0.03ミリメート
ル、一番長い部分の径は約2.5〜5ミリメートル、内
径約1.2〜2ミリメートル程度の薄板が好ましい。ま
た、針座は、円形に切り出したベリリウム銅やステンレ
ス鋼等の弾性金属材料を曲げ加工して成形することがで
きる。また、上述した説明では、突出部は3個でなくて
も、1、2、個または4個以上でもよい。In the case of a small timepiece such as a wristwatch, the needle seat 18 has a thickness of about 0.02 to 0.03 mm, the longest portion has a diameter of about 2.5 to 5 mm, and an inner diameter of about 2.5 to 5 mm. A thin plate of about 1.2 to 2 mm is preferred. Further, the needle seat can be formed by bending an elastic metal material such as beryllium copper or stainless steel cut into a circle. In the above description, the number of protrusions is not limited to three, but may be one, two, four, or more.
【0016】上記実施の実施の形態1によれば、組立作
業時に、針座を確実に組み込めるようになるため、低コ
スト化を図ることが可能になる。According to the first embodiment, the needle seat can be securely incorporated at the time of the assembling operation, so that the cost can be reduced.
【0017】(実施の形態2)図2は、この発明の実施
の形態2の針座の固定構造を説明する説明図である。
(a)に針座の平面、(b)に取付時の側面を示す。こ
の針座19は、薄板状の円形部材を切り欠いた外形であ
る。この針座19は、中央部分に穴部19aを穿ってあ
る。特に、この穴部19aには、車軸部12aの外径よ
りも中心側に位置する長さに成形した直線部19b、1
9cを成形してある。また、針座19の外形にも、直線
部19b、19cと同様に直線部19d、19eを形成
してある。つまり、直線部19b、19cと直線部19
d、19eで形成される針座19の面は、円弧状の面に
比べて幅が薄くなり、幅方向に広がるように平面的に弾
性変形することが可能である。(Embodiment 2) FIG. 2 is an explanatory view for explaining a needle seat fixing structure according to Embodiment 2 of the present invention.
(A) shows a plane of the needle seat, and (b) shows a side surface at the time of mounting. The needle seat 19 has an outer shape obtained by cutting out a thin circular plate-shaped member. The needle seat 19 has a hole 19a in the center. In particular, the hole 19a has straight portions 19b, 1
9c is molded. In addition, linear portions 19d and 19e are formed on the outer shape of the needle seat 19 as well as the linear portions 19b and 19c. That is, the linear portions 19b and 19c and the linear portion 19
The surface of the needle seat 19 formed by d and 19e is thinner in width than the arcuate surface, and can be elastically deformed in a planar manner so as to spread in the width direction.
【0018】上述の構成の針座19では、組立時に、中
央部分の穴部19aを車軸部12aに挿入すると、直線
部19b、19cが、車軸部12aを押さえ付ける。針
座19は押さえ付けた時の反作用による力によって車軸
部12aをくわえ込んでいくとともに、直線部19b、
19cと直線部19d、19eで形成される針座19の
面が平面的に弾性変形するため、針座19は安定な状態
で、車軸部12aに取りつけられる。これによって、針
座19の外形の静電気などのよる飛びを防止することと
なる。この状態で、上から受部材(図示せず)を針座1
9が塑性変形しない程度の隙間をあけて固定して、組み
立てていく。In the needle seat 19 having the above-described configuration, when the central hole 19a is inserted into the axle portion 12a during assembly, the linear portions 19b and 19c press the axle portion 12a. The needle seat 19 holds the axle portion 12a by the force of the reaction when pressed down, and the linear portion 19b,
Since the surface of the needle seat 19 formed by 19c and the linear portions 19d and 19e is elastically deformed in a plane, the needle seat 19 is attached to the axle portion 12a in a stable state. As a result, flying of the outer shape of the needle seat 19 due to static electricity or the like is prevented. In this state, the receiving member (not shown) is attached to the needle seat 1 from above.
9 is fixed with a gap that does not cause plastic deformation, and then assembled.
【0019】なお、針座19は、腕時計などの小型な時
計の場合には、上記実施の形態1の場合と同じ厚さや外
径や内径の薄板が好ましい。また、針座19は、同様
に、円形に切り出した弾性金属材料を曲げ加工して成形
すればよい。In the case of a small timepiece such as a wristwatch, the needle seat 19 is preferably a thin plate having the same thickness, outer diameter and inner diameter as in the first embodiment. Similarly, the needle seat 19 may be formed by bending an elastic metal material cut out in a circular shape.
【0020】上記実施の実施の形態2によれば、組立作
業時に、針座を確実に組み込めるようになるため、低コ
スト化を図ることが可能になる。さらに、平面的な弾性
変形をするため、より安定に針座19を車軸部12aに
くわえ込ませることができるようになる。According to the second embodiment, the needle seat can be securely incorporated at the time of the assembling operation, so that the cost can be reduced. Furthermore, since the elastic deformation is performed two-dimensionally, the needle seat 19 can be held more stably in the axle portion 12a.
【0021】また、上記実施の形態1では突出部を設け
た場合を説明したが、突出部を設けるのではなく、針座
の穴部が車軸部12aの外径よりも中心側に位置する長
さの径に成形して、その穴部側に切り欠きを設けてもよ
い。これによっても、切り欠き同士の間の部分が上述し
た突起部と同一の作用・効果を得ることができる。ま
た、上記実施の形態2では、外形を直線状に成形した場
合を説明したが、針座自身をほぼ楕円形状とするととも
に、穴部をほぼ楕円形状とし、切り欠きを設けるように
してもよい。これによっても、安定した弾性変形を得る
ことができるため、より安定して針座を車軸部12aに
くわえ込ませるという同一の作用・効果を得ることがで
きる。In the first embodiment, the case where the protrusion is provided has been described. However, instead of providing the protrusion, the length of the hole of the needle seat is located closer to the center than the outer diameter of the axle portion 12a. It may be formed into a diameter, and a notch may be provided on the hole side. This also allows the portion between the notches to obtain the same operation and effect as the above-described protrusion. In the second embodiment, the case where the outer shape is formed into a linear shape has been described. . Also with this, since stable elastic deformation can be obtained, the same operation and effect of holding the needle seat in the axle portion 12a more stably can be obtained.
【0022】以上説明したように、この発明の針座の固
定構造によれば、組立作業時に、針座を確実に組み込め
るようになるため、低コスト化を図ることができる効果
が得られる。As described above, according to the needle seat fixing structure of the present invention, the needle seat can be securely incorporated at the time of the assembling operation, so that the effect of reducing the cost can be obtained.
【図1】この発明の実施の形態1の針座の固定構造を説
明する説明図である。FIG. 1 is an explanatory diagram illustrating a structure for fixing a needle seat according to a first embodiment of the present invention;
【図2】この発明の実施の形態2の針座の固定構造を説
明する説明図である。FIG. 2 is an explanatory view illustrating a structure for fixing a needle seat according to a second embodiment of the present invention.
【図3】一般的な時計の機構を示す断面図である。FIG. 3 is a sectional view showing a general timepiece mechanism.
【図4】図3の要部を示す拡大断面図である。FIG. 4 is an enlarged sectional view showing a main part of FIG.
【図5】従来の針座を説明する説明図である。FIG. 5 is an explanatory view illustrating a conventional needle seat.
12 筒車 12a 車軸部 14 針座 14a 穴部 18 針座 18a 穴部 18b、18c、18d 突出部 19 針座 19a 穴部 19b、19c、19d、19e 直線部 12 hour wheel 12a axle part 14 needle seat 14a hole part 18 needle seat 18a hole part 18b, 18c, 18d projecting part 19 needle seat 19a hole part 19b, 19c, 19d, 19e linear part
Claims (3)
軸体と、 前記回転軸体をくわえ込んで固定するくわえ込み部を有
する針座と、 を有する時計。1. A timepiece comprising: a rotating shaft body to which a needle is attached to rotate the needle; and a needle seat having a grip portion for gripping and fixing the rotating shaft body.
部の内周部に設けた突起部であり、 前記針座を前記回転軸体に軸支する際に、前記突起部が
前記回転軸体を弾性変形させてくわえ込む請求項1に記
載の時計。2. The holding portion is a projection provided on an inner peripheral portion of a center hole of the needle seat. When the needle seat is pivotally supported on the rotating shaft, the projection is formed by the projection. The timepiece according to claim 1, wherein the rotating shaft body is elastically deformed and held.
に狭い部分の面であり、 前記針座を前記回転軸体に軸支する際に、前記面を平面
的に弾性変形させて前記回転軸体をくわえ込む請求項1
に記載の時計。3. The grip portion is a surface of a narrow portion in the width direction of the needle seat, and when the needle seat is pivotally supported on the rotating shaft body, the surface is elastically deformed in a planar manner. 2. The method according to claim 1, wherein the rotating shaft body is held.
The clock described in.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001004063A JP2002207086A (en) | 2001-01-11 | 2001-01-11 | Timepiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001004063A JP2002207086A (en) | 2001-01-11 | 2001-01-11 | Timepiece |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002207086A true JP2002207086A (en) | 2002-07-26 |
Family
ID=18872298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001004063A Pending JP2002207086A (en) | 2001-01-11 | 2001-01-11 | Timepiece |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002207086A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006090694A1 (en) | 2005-02-22 | 2006-08-31 | Citizen Holdings Co., Ltd. | Pointer indication type timepiece |
JP7514179B2 (en) | 2020-12-14 | 2024-07-10 | セイコーウオッチ株式会社 | Hand seat holding structure, watch movement and watch |
-
2001
- 2001-01-11 JP JP2001004063A patent/JP2002207086A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006090694A1 (en) | 2005-02-22 | 2006-08-31 | Citizen Holdings Co., Ltd. | Pointer indication type timepiece |
JP4878408B2 (en) * | 2005-02-22 | 2012-02-15 | シチズンホールディングス株式会社 | Pointer display type clock |
JP7514179B2 (en) | 2020-12-14 | 2024-07-10 | セイコーウオッチ株式会社 | Hand seat holding structure, watch movement and watch |
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