JPS583113Y2 - Clock mechanism gear support device - Google Patents

Description

【考案の詳細な説明】 本考案は時計機構の歯車支持装置に関する。[Detailed explanation of the idea] The present invention relates to a gear support device for a clock mechanism.

従来、この種の時計機構は第１図の如く構成されている
。Conventionally, this type of clock mechanism has been constructed as shown in FIG.

即ち第１図において１はロータで、ロータコイル２に周
期的に通電され、発生せしめられる磁界により駆動され
る。That is, in FIG. 1, reference numeral 1 denotes a rotor, which is driven by a magnetic field generated by periodically energizing a rotor coil 2.

ロータ１の回転軸３は軸受４，５を介して蓋体６内に軸
架され、且つ一番車をなすピニオン７が装荷されている
。A rotating shaft 3 of the rotor 1 is mounted within a lid 6 via bearings 4 and 5, and a pinion 7 serving as a first wheel is loaded therein.

前記ピニオン７には減速且つ伝達方向を変える二番車を
なすクラウンギア８が噛合わせられ、前記クラウンギア
８は、前記蓋体６と地板９間にギア軸１０を介して枢着
され且つ前記ロータコイル２２回路ブロック１１が付設
されると共に蓋体６に装荷された回路板１２を、貫通し
て延びている。A crown gear 8 serving as a second wheel for decelerating and changing the transmission direction is meshed with the pinion 7, and the crown gear 8 is pivotally connected between the lid body 6 and the base plate 9 via a gear shaft 10, and The rotor coil 22 extends through the circuit board 12 to which the circuit block 11 is attached and which is loaded on the lid 6.

前記クラウンギア８に伝達された駆動力は更に地板９と
回路板１２間に枢支された五番車１３．四番車１４を介
して秒針車１５に伝えられる。The driving force transmitted to the crown gear 8 is further transmitted to the fifth wheel & pinion 13 which is pivotally supported between the main plate 9 and the circuit board 12. The signal is transmitted to the second hand wheel 15 via the fourth wheel & pinion 14.

前記秒針車１５の秒針１６は地板９および前記蓋体６が
一体化されるケース１７を貫通して延出している。The second hand 16 of the second hand wheel 15 extends through a case 17 in which the main plate 9 and the lid 6 are integrated.

また前記秒針車１５には地板９に枢支された伝え車１８
が噛合わせられており、前記伝え車１８には分針車１９
が連係されている。Further, the second hand wheel 15 has a transmission wheel 18 pivotally supported on the main plate 9.
are engaged with each other, and the transmission wheel 18 has a minute wheel 19.
are linked.

更に前記分針車１９は日の裏車２０を介して時針車２１
に連係され、一方前記の日の裏車２０は、蓋体６の外部
から回動可能な針回し軸２２に連結された針回し車２３
に噛合わせられている。Furthermore, the minute hand wheel 19 connects to the hour hand wheel 21 via the minute wheel 20.
On the other hand, the day wheel 20 is connected to a needle rotating shaft 22 which is rotatable from the outside of the lid 6.
It is interlocked with.

従ってロータコイル２に通電すればロータ１が回転され
、その出力が減速歯車列を構成するピニオン７、クラウ
ンギア８．五番車１３．四番車１４を経て減速伝達され
、秒針車１５が駆動される。Therefore, when the rotor coil 2 is energized, the rotor 1 is rotated, and its output is transmitted to the pinion 7, crown gear 8, and so on that constitute the reduction gear train. Fifth wheel 13. The deceleration is transmitted via the fourth wheel & pinion 14, and the second hand wheel 15 is driven.

併せて伝え車１８を介し分針車１９が減速駆動され、更
に日の裏車２０を介し時針車２１が減速駆動される。At the same time, the minute hand wheel 19 is decelerated and driven via the transmission wheel 18, and the hour hand wheel 21 is also decelerated and driven via the date wheel 20.

一方針回し軸２２を回転すれば日の裏車２０を介し分針
車１９を強制回転でき、整時動作を行なうことができる
。On the other hand, if the hand rotating shaft 22 is rotated, the minute hand wheel 19 can be forcibly rotated via the minute wheel 20, and a time setting operation can be performed.

この場合、分針車１９の伝え車１８と噛合うギア部１９
′と、日の裏車２０と噛合うカナ部１９″との間にはス
リップ機構が配列されていて、当該時刻以前の時刻と対
応する歯車刃には整時駆動力が伝達されない。In this case, the gear portion 19 that meshes with the transmission wheel 18 of the minute wheel 19
A slip mechanism is arranged between the pinion part 19'' that meshes with the dial wheel 20, and the timing drive force is not transmitted to the gear blade corresponding to the time before the relevant time.

しかしながら上述のように構成された時計機構において
は、ロータからの出力を減速且つ方向変換して伝達する
ピニオン７とクラウンギア８との噛合いが、特に蓋体６
およびケース１７．ケース１７に装着される地板９．ク
ラウンギア８等の多数の部材の寸法のバラツキにより不
安定になっていた。However, in the clock mechanism configured as described above, the meshing between the pinion 7 and the crown gear 8, which transmit the output from the rotor by decelerating and changing the direction, is particularly important for the lid body 6.
and case 17. Base plate 9 attached to case 17. It has become unstable due to variations in the dimensions of many members such as the crown gear 8.

本考案は上記の欠点を除去し、特に回転数が高く低トル
クで連動されるピニオンとクラウンギアとの噛合いを適
切に保ち得る時計機構の歯車支持装置を提供することを
目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a gear support device for a clock mechanism that eliminates the above-mentioned drawbacks and can maintain appropriate meshing between a pinion and a crown gear that are interlocked at high rotational speed and low torque.

以下図面について本考案を説明する。The present invention will be explained below with reference to the drawings.

第２図乃至第５図に示すように、本考案においては地板
９ａの一側縁に取付突部３１を突設せしめ、前記取付突
部３１に保持バネ３２の一端をネジ３３で固定する。As shown in FIGS. 2 to 5, in the present invention, a mounting protrusion 31 is provided protruding from one side edge of the base plate 9a, and one end of a holding spring 32 is fixed to the mounting protrusion 31 with a screw 33.

前記保持バネ３２は歯車列を迂回するようＬ字状に折曲
されると共に、クラウンギア８ａと中央部が当接し得る
よう設けられており、且つ蓋体６ａに形成した引掛は凹
所３４に係止可能に更にＬ字状に折曲・延設されている
。The retaining spring 32 is bent into an L shape so as to bypass the gear train, and is provided so that its center portion can abut against the crown gear 8a, and the hook formed on the lid body 6a is inserted into the recess 34. It is further bent and extended into an L-shape so that it can be locked.

また前記保持バネ３２の、クラウンギア８ａと当接する
中央部には、前記クラウンギア８ａのギア軸１０ ａを
挿通せしめる孔３５が穿設されている。Further, a hole 35 is bored in the center portion of the holding spring 32 that contacts the crown gear 8a, through which the gear shaft 10a of the crown gear 8a is inserted.

加えて前記保持バネ３２は引掛は凹所３４に向って、バ
ネ負荷を与えるよう上向きに折曲されていて、蓋体６ａ
とケース１７ ａとの抱合時に第４図から第５図の如く
保持バネ３２が下向きに弾圧されるよう設けられている
。In addition, the retaining spring 32 is bent upward toward the recess 34 so as to apply a spring load to the lid body 6a.
A holding spring 32 is provided so as to be pressed downward as shown in FIGS. 4 and 5 when the case 17a and the case 17a are combined.

しかして組立時にクラウンギア８ａのギア軸１０ ａを
孔３５に挿通せしめ、保持バネ３２にクラウンギア８ａ
を当接するよう配設すれば、保持バネ３２によりクラウ
ンギア８ａが位置決めされることになるから、引掛は凹
所３４を有する蓋体６ａとクラウンギア８ａの寸法、詳
細には蓋体６ａのクラウンギア８ａを支承する軸受台３
６の頂部と引掛は凹所３４までの距離ａとクラウンギア
８ａの高さｂのみを充分に管理すれば、ピニオン７ａと
クラウンギア８ａとの噛合いを実質的に定常に保つこと
ができることになる。During assembly, the gear shaft 10a of the crown gear 8a is inserted into the hole 35, and the retaining spring 32 is inserted into the crown gear 8a.
Since the crown gear 8a is positioned by the retaining spring 32, the catch is determined by the dimensions of the lid body 6a having the recess 34 and the crown gear 8a, more specifically by the crown of the lid body 6a. Bearing stand 3 that supports gear 8a
If only the distance a to the recess 34 and the height b of the crown gear 8a are sufficiently controlled, the engagement between the pinion 7a and the crown gear 8a can be maintained substantially constant. Become.

上述のように構成された本案の時計機構の歯車支持装置
によれば、ピニオンとクラウンギアとの噛合いのバラツ
キを大巾に低減でき、高回転、低トルクで連動されるピ
ニオン・クラウンギア間の噛合い量のバラツキを低減で
きるから高精度になし得、信頼性を向上し得る等々極め
て実用的な効果を達成する。According to the gear support device of the clock mechanism of the present invention configured as described above, variations in meshing between the pinion and the crown gear can be greatly reduced, and the difference between the pinion and the crown gear that are interlocked at high rotation and low torque can be reduced. Since the variation in the amount of engagement can be reduced, high precision can be achieved, reliability can be improved, and other extremely practical effects can be achieved.

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

第１図は従来の時計機構の断面図、第２図は本考案を適
用した時計機構の断面図、第３図は同部分斜視図、第４
図および第５図は同組立説明図である。 ６ａ・・・・・・蓋体、７ａ・・・・・・ピニオン、８
ａ・・・・・・クラウンギア、９ａ・・・・・・地板、
１０ ａ・・・・・・ギア軸、１７ａ・・・・・・ケー
ス、３１・・・・・・取付突部、３２・・・・・・保持
バネ、３３・・・・・・ネジ、脚・・・・・・引掛は凹
所、３５・・・・・・孔、３６・・・・・・軸受台。Fig. 1 is a sectional view of a conventional clock mechanism, Fig. 2 is a sectional view of a clock mechanism to which the present invention is applied, Fig. 3 is a perspective view of the same part, and Fig. 4 is a sectional view of a conventional clock mechanism.
This figure and FIG. 5 are explanatory diagrams of the same assembly. 6a...Lid body, 7a...Pinion, 8
a... Crown gear, 9a... Main plate,
10a... Gear shaft, 17a... Case, 31... Mounting protrusion, 32... Holding spring, 33... Screw, Legs...Hooks are recesses, 35...holes, 36...bearing stands.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）ケースと蓋体との抱合体で囲繞され、ロータの回
転軸に装荷された一番車をなすピニオンを有し、前記ピ
ニオンと噛み合い、減速且つ伝達方向を変える二番車を
なすクラウンギアが包有され、地板に支承された減速歯
車列を介し、ロータの回転出力を秒針車９分針車に伝達
する時計機構において、一端が地板９ａに固着され、他
端が蓋体６ａに係止された保持バネ３２によりクラウン
ギア８ａの位置を規制してなることを特徴とする歯車支
持装置。(1) A crown that is surrounded by a combination of a case and a lid body, has a pinion that serves as a first wheel loaded on the rotating shaft of the rotor, and that engages with the pinion and serves as a second wheel for deceleration and changing the transmission direction. In a clock mechanism that transmits the rotational output of a rotor to a second hand wheel and a nine-minute hand wheel via a reduction gear train that includes gears and is supported by a main plate, one end is fixed to the main plate 9a and the other end is engaged with the lid body 6a. A gear support device characterized in that the position of the crown gear 8a is regulated by a stopped holding spring 32. （２）保持バネ３２はバネ負荷を与えるよう傾斜せしめ
られ、一端が地板９ａの一側縁にネジ３３で１定され、
歯車列を迂回するようＬ字状に折曲されると共に、蓋体
６ａ内面に向って更に新曲延設され、且つ中央部にクラ
ウンギア８ａのギア軸１０ａを挿通する孔３５が穿設さ
れてなる実用新案登録請求の範囲第１項記載の時計機構
の歯車支持装置。(2) The holding spring 32 is inclined to apply a spring load, and one end is fixed to one side edge of the base plate 9a with a screw 33,
It is bent into an L-shape so as to bypass the gear train, and a new curve is further extended toward the inner surface of the lid body 6a, and a hole 35 is bored in the center part through which the gear shaft 10a of the crown gear 8a is inserted. A gear support device for a timepiece mechanism according to claim 1 of the utility model registration claim.