JPH1026671A - Sliding parts for watches, methods for manufacturing the same, and watches - Google Patents
Sliding parts for watches, methods for manufacturing the same, and watchesInfo
- Publication number
- JPH1026671A JPH1026671A JP18253396A JP18253396A JPH1026671A JP H1026671 A JPH1026671 A JP H1026671A JP 18253396 A JP18253396 A JP 18253396A JP 18253396 A JP18253396 A JP 18253396A JP H1026671 A JPH1026671 A JP H1026671A
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- timepiece
- thiol compound
- rotor
- wheel
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- -1 thiol compound Chemical class 0.000 claims abstract description 26
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010931 gold Substances 0.000 claims abstract description 9
- 229910052737 gold Inorganic materials 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 238000005461 lubrication Methods 0.000 abstract description 18
- 239000003921 oil Substances 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- 229920005989 resin Polymers 0.000 description 13
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 11
- 239000007787 solid Substances 0.000 description 8
- 238000007747 plating Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000007772 electroless plating Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 235000016496 Panda oleosa Nutrition 0.000 description 3
- 240000000220 Panda oleosa Species 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 150000003573 thiols Chemical class 0.000 description 2
- 241000272520 Aix galericulata Species 0.000 description 1
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromechanical Clocks (AREA)
Abstract
(57)【要約】
【課題】 優れた潤滑性能を有すると共に、その潤滑性
能を長期にわたって保持することができる時計用摺動部
品を比較的簡単にしかも低コストで得ること。
【解決手段】電子腕時計の摺動部品である、モータ１の
ロータ４とこのロータ４を支持する軸受体（地板５、輪
列受６）に対して、チオール化合物を付着させるコーテ
ィング処理を施した。チオール化合物の−Ｒ基は、−Ｓ
Ｈ基が摺動部品面に向くのに対して、外面に向く。した
がって−Ｒ基の表面エネルギーを低くすると、摺動部品
の見掛け上の表面エネルギーは低くなり、滑りやすくな
る。チオール化合物は細密状態で金面に形成されるた
め、超低表面エネルギー面となり、摩擦係数を極めて低
くできる。処理方法は、チオール化合物を溶解した溶液
に、これらの摺動部品を浸漬させて行う。
(57) [Problem] To provide a sliding part for a timepiece which has excellent lubrication performance and can maintain the lubrication performance for a long period of time relatively easily and at low cost. A coating process for attaching a thiol compound to a rotor 4 of a motor 1 and a bearing body (a base plate 5, a train wheel bridge 6) that supports the rotor 4 as sliding components of an electronic wristwatch is performed. . The -R group of the thiol compound is -S
The H group faces the outer surface while the H group faces the sliding component surface. Therefore, when the surface energy of the -R group is reduced, the apparent surface energy of the sliding component is reduced, and the sliding component becomes slippery. Since the thiol compound is formed on the gold surface in a fine state, it has an ultra-low surface energy surface and can have a very low friction coefficient. The treatment method is performed by immersing these sliding components in a solution in which a thiol compound is dissolved.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は摺動部品とその製造
方法、中でも時計に用いられる精密な小型摺動部品の製
造方法に係わる。特に油に替わる潤滑としてチオール化
合物を部品表面にコーティングした時計用の摺動部品の
製造方法およびこの摺動部品を用いた時計に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding part and a method of manufacturing the same, and more particularly to a method of manufacturing a precision small sliding part used for a timepiece. In particular, the present invention relates to a method of manufacturing a sliding part for a timepiece in which a thiol compound is coated on the surface of the part as lubrication instead of oil, and a timepiece using the sliding part.
【０００２】[0002]
【従来の技術】従来より時計においては、長期に渡る信
頼性が要求されている。例えば、アナログ式電子腕時計
においては、ステップモータに使用されているロータや
歯車とこれらを保持する上下の軸受体の摺動部、突っ張
りの発生する恐れのある歯車の噛み合い部、またはリュ
ーズ切換えにより摺動するおしどりとかんぬきの摺動面
等の金属製の摺動部には、注油を行い摩擦力の低減や摩
耗防止を図ってきた。2. Description of the Related Art Timepieces have been required to have long-term reliability. For example, in an analog electronic wristwatch, the rotor and gears used in the step motor and the sliding portions of the upper and lower bearings that hold them, the meshing portions of the gears where tension may occur, or the switching by crown switching. Lubrication has been applied to metal sliding parts, such as the sliding surfaces of the moving torsional and latch, to reduce frictional force and prevent wear.
【０００３】注油のできない一部の金属製摺動部品に
は、フッ化カーボンを共析させた無電界メッキを表面に
被覆または４フッ化エチレン樹脂を蒸着し、固体潤滑剤
として用いてきた。また、実開昭６３−１１３９８５の
ように、時計の特殊な２番車のすべり構造に４フッ化エ
チレン系樹脂を分散溶媒に混合した混合液を用いて、コ
ーティングを行っていた例もある。Some metal sliding parts that cannot be lubricated have been used as solid lubricants by coating the surfaces with electroless plating of carbon fluoride or evaporating ethylene tetrafluoride resin. Further, as disclosed in Japanese Utility Model Application Laid-Open No. 63-113985, there is also an example in which a coating is performed by using a mixed solution obtained by mixing a tetrafluoroethylene resin with a dispersion solvent in a slip structure of a special second wheel of a timepiece.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
注油方式では、低温下での油の粘度上昇によるモータの
動作不良、高温下での油の粘度低下による油の拡散流
失、長期使用による油の変質劣化、ゴミケバが付着し易
い等の課題があり、品質を維持するために定期的な洗浄
と注油が必要とされる。However, in the conventional lubrication system, the malfunction of the motor due to an increase in the viscosity of the oil at a low temperature, the diffusion and loss of the oil due to a decrease in the viscosity of the oil at a high temperature, and the oil There are problems such as deterioration and deterioration, and dust and dirt are easy to adhere, and regular cleaning and lubrication are required to maintain quality.
【０００５】注油のいらない固体潤滑方式では、フッ化
カーボンを共析させたニッケルメッキや４フッ化エチレ
ン樹脂を共析させた無電界メッキは、金属部品へは使用
可能だが、近年主流となりつつあるプラスチック部品は
メッキの付着性が悪く使用不可能である。しかも金属製
部品に対しても４フッ化エチレン樹脂の共析メッキは、
コストが浸漬処理の約１０倍と非常に高価である。[0005] In the solid lubrication system which does not require lubrication, nickel plating with eutectoid carbon fluoride and electroless plating with eutectoid tetrafluoroethylene resin can be used for metal parts, but have recently become mainstream. Plastic parts cannot be used because of poor adhesion of plating. Moreover, eutectoid plating of tetrafluoroethylene resin on metal parts
The cost is very high, about 10 times that of the immersion treatment.
【０００６】また、４フッ化エチレン樹脂の蒸着による
潤滑膜は、凹凸のはげしい形状が複雑な箇所への付着が
難しく、油との併用が必要である。また、実開昭６３−
１１３９８５で示す腕時計の特殊な構造の２番車への処
理に用いた４フッ化エチレン樹脂を溶媒に混合した混合
液ではバインダーが使われておらず、４フッ化エチレン
系樹脂が部品へ付着しにくく、十分な性能が得られない
といった多くの課題がある。A lubricating film formed by vapor deposition of a tetrafluoroethylene resin is difficult to adhere to a portion having a complicated uneven shape, and must be used in combination with oil. In addition, 63
No binder is used in the mixture of tetrafluoroethylene resin used for the treatment of the second wheel of the special structure of the wristwatch indicated by 113985, and the binder is not used. There are many problems such as difficulty in obtaining sufficient performance.
【０００７】本発明はこのような課題を解決するもので
あって、その目的とするところは、優れた潤滑性能（低
摩擦力・均一性・安定性）を有するのはもちろんのこ
と、その潤滑性能を長期にわたって保持することができ
る時計用摺動部品を比較的簡単にしかも低コストで得る
ことである。The present invention has been made to solve such a problem, and its object is to provide not only excellent lubrication performance (low friction force, uniformity and stability) but also its lubrication. An object of the present invention is to obtain a timepiece sliding part capable of maintaining performance for a long period of time relatively simply and at low cost.
【０００８】また、このような摺動部品を用いることに
より、摺動部の摩擦力の低減を図り、低消費電力で、低
温特性に優れ、長期にわたって信頼性品質を飛躍的に高
めた時計を実現することである。Further, by using such a sliding component, a timepiece which reduces frictional force of a sliding portion, has low power consumption, has excellent low-temperature characteristics, and has greatly improved reliability quality over a long period of time. It is to realize.
【０００９】[0009]
【課題を解決するための手段】本発明の時計用摺動部品
の製造方法は、チオール化合物の溶液に対象となる摺動
部品を浸漬してコーティング処理することにより、チオ
ール化合物を摺動部品表面に付着させることを特徴とす
る。According to the method of the present invention for producing a sliding part for a timepiece, a thiol compound is immersed in a solution of a thiol compound and subjected to a coating treatment, whereby the thiol compound is coated on the surface of the sliding part. Characterized in that it is attached to
【００１０】また、本発明の時計用摺動部品は、上述の
製造方法を用いて製造することを特徴とする。中でも、
この時計用摺動部品としては、時計用ステップモータの
ロータとこのロータを保持する軸受体であることが特に
有用である。A sliding component for a timepiece according to the present invention is manufactured by using the above-described manufacturing method. Among them,
As the timepiece sliding component, it is particularly useful to use a rotor of a timepiece step motor and a bearing for holding the rotor.
【００１１】そして、本発明の時計はこれらの時計用摺
動部品を用いることを特徴としている。The timepiece of the present invention is characterized by using these timepiece sliding parts.
【００１２】[0012]
【作用】本発明者らの研究によれば、チオール化合物は
選択的に金と反応し、単分子膜を形成することが分か
り、しかも細密充填状態で金に吸着することも判明し
た。これを時計の摺動部品の固体潤滑処理に応用するこ
とを検討したところ、アルキル基を有するチオール化合
物を利用することにより実現できた。なお本発明のアル
キル基は特に限定されるものではなく、炭素に水素が結
び付くアルカン基、炭素とフッ素が結び付くフロロ基、
等が使用できる。またイソ型の構造のものでも良い。According to the study of the present inventors, it has been found that the thiol compound selectively reacts with gold to form a monomolecular film, and that it is adsorbed to gold in a finely packed state. The application of this technology to the solid lubrication treatment of timepiece sliding parts was studied, and it was realized by using a thiol compound having an alkyl group. The alkyl group of the present invention is not particularly limited, an alkane group in which hydrogen is bonded to carbon, a fluoro group in which carbon is bonded to fluorine,
Etc. can be used. It may have an iso-type structure.
【００１３】チオール化合物は末端の−ＳＨ基が金と反
応して共有結合を形成する。摺動部品の表面に金の膜を
形成することにより、チオール化合物は摺動部品に強く
付着する。したがって時計が動作する際に摺動部品にか
かる力で、チオール化合物が摺動部品から剥がれること
はない。The terminal -SH group of the thiol compound reacts with gold to form a covalent bond. By forming a gold film on the surface of the sliding component, the thiol compound strongly adheres to the sliding component. Therefore, the thiol compound does not separate from the sliding component due to the force applied to the sliding component when the timepiece operates.
【００１４】またチオール化合物の−Ｒ基は、−ＳＨ基
が摺動部品面に向くのに対して、外面に向く。したがっ
て−Ｒ基の表面エネルギーを低くすると、摺動部品の見
掛け上の表面エネルギーは低くなり、滑りやすくなる。
チオール化合物は細密状態で金面に形成されるため、超
低表面エネルギー面となる。これによりフッ化グラファ
イトや４フッ化エチレンより良好な潤滑性能を得られ
る。The -R group of the thiol compound is directed to the outer surface while the -SH group is directed to the surface of the sliding component. Therefore, when the surface energy of the -R group is reduced, the apparent surface energy of the sliding component is reduced, and the sliding component becomes slippery.
Since the thiol compound is formed on the gold surface in a fine state, it has an ultra-low surface energy surface. Thereby, better lubrication performance than graphite fluoride or tetrafluoroethylene can be obtained.
【００１５】従来の４フッ化エチレン系樹脂固体潤滑粉
は対象となる摺動部品の表面にはある程度付着するので
はあるが、この場合摺動部品の潤滑性能の試験を行って
も比較的短時間のうちに性能が劣化してしまうことが判
明した。これは、４フッ化エチレン系樹脂固体潤滑粉が
摺動部品の表面との分子間力によって結びついているた
めであると推察される。分子間力は二次結合力と呼ば
れ、共有結合等の一次結合よりも結合力は低い。このた
め、４フッ化エチレン系樹脂固体潤滑粉の付着力が弱
く、摺動部品同士が摺動するうちに４フッ化エチレン系
樹脂固体潤滑粉が摺動部品表面から離脱してしまう。Although the conventional tetrafluoroethylene resin solid lubricant powder adheres to the surface of the target sliding component to some extent, in this case, even if the lubrication performance of the sliding component is tested, it is relatively short. It was found that the performance deteriorated in time. It is presumed that this is because the tetrafluoroethylene-based resin solid lubricating powder is linked to the surface of the sliding component by an intermolecular force. The intermolecular force is called a secondary bonding force, and has a lower bonding force than a primary bond such as a covalent bond. Therefore, the adhesion of the tetrafluoroethylene-based resin solid lubricating powder is weak, and the tetrafluoroethylene-based resin solid lubricating powder separates from the surface of the sliding component while the sliding components slide.
【００１６】またチオール化合物を利用する方法は潤滑
膜の厚さが単分子膜と薄いため、使用する量はごくわず
かである。従来のフッ化カーボンと比べるとその使用量
は１／１０００以下となり、極めて安価に処理できる。In the method using a thiol compound, the amount of the lubricating film used is very small because the thickness of the lubricating film is as thin as a monomolecular film. Compared to conventional fluorocarbon, its usage is 1/1000 or less, and it can be treated at extremely low cost.
【００１７】さらに摺動部品に金を成膜する方法は特に
限定されるものではなく、メッキ法等の湿式処理や、真
空蒸着あるいはスパッタ等の乾式処理を利用できる．従
来のフッ化カーボンを共析させたニッケルメッキや、４
フッ化エチレン樹脂を共析させた無電界メッキは、プラ
スチック部品への付着が悪く、使用不可能である。これ
に対して、金メッキのような単体の金属の無電界メッキ
はプラスチックに良好な密着する。Further, the method of depositing gold on the sliding parts is not particularly limited, and wet processing such as plating and dry processing such as vacuum deposition or sputtering can be used. Conventional nickel plating with carbon fluoride eutectoid, 4
Electroless plating in which a fluorinated ethylene resin is codeposited has poor adhesion to plastic parts and cannot be used. In contrast, electroless plating of a single metal, such as gold plating, provides good adhesion to plastic.
【００１８】この理由を以下に述べる。メッキ液中のフ
ッ化カーボンや、４フッ化エチレン樹脂は界面活性剤等
で分散させた粒子状で存在する。これらはもともとプラ
スチックには密着しにくいうえに、ニッケルイオンのプ
ラスチックへの析出を阻害する働きもある。したっがて
プラスチックに付着しにくく、付着しても容易に剥離す
る。The reason will be described below. Carbon fluoride and tetrafluoroethylene resin in the plating solution exist in the form of particles dispersed with a surfactant or the like. These are originally difficult to adhere to plastic, and also have a function of inhibiting precipitation of nickel ions on plastic. Therefore, it hardly adheres to the plastic, and easily adheres even if it adheres.
【００１９】[0019]
【発明の実施の形態】以下に、本発明の時計用摺動部品
およびその製造方法、および時計について実施例に基づ
いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sliding component for a timepiece, a method of manufacturing the same, and a timepiece according to the present invention will be described below based on examples.
【００２０】図１は指針式電子腕時計のステップモータ
１及び輪列機構２の組立断面図を示す。この電子腕時計
（水晶発振式腕時計）は、特に図示はしないが 32768Hz
という水晶の信号をＩＣで 1Hzの信号に分周しステップ
モータ１の駆動源としている。ステップモータ１はステ
ータ３、ロータ４および図示していないコイルで構成さ
れており、コイルに１秒毎の反転パルス信号が流れると
ステータ３が電磁石となり、２極ロータ４が１パルスあ
たり180゜回転し、電気信号が機械的信号に変換され、輪
列機構２に伝達される。ロータ４は図２に示すように、
ロータ軸１７、ロータカナ１８、ロータ磁石１９等から
成り、ロータ磁石１９を覆う形でポリアセタール樹脂で
ロータ軸１７およびロータカナ１８を一体成形したもの
である。ロータ４の上下の軸は地板５と輪列受６により
保持されており、その軸径は直径0.2mmと極めて細く、
地板５または輪列受６とのクリアランスも 0.01mm程度
と極めて少ない。FIG. 1 is an assembly sectional view of a step motor 1 and a train wheel mechanism 2 of a pointer type electronic wristwatch. This electronic wristwatch (quartz oscillation type wristwatch) has a 32768Hz
The signal of the crystal is divided into a signal of 1 Hz by an IC and used as a drive source of the step motor 1. The step motor 1 includes a stator 3, a rotor 4, and a coil (not shown). When an inverted pulse signal flows through the coil every one second, the stator 3 becomes an electromagnet, and the two-pole rotor 4 rotates 180 ° per pulse. Then, the electric signal is converted into a mechanical signal and transmitted to the wheel train mechanism 2. The rotor 4 is, as shown in FIG.
The rotor shaft 17, the rotor pinion 18, the rotor magnet 19, and the like are formed, and the rotor shaft 17 and the rotor pinion 18 are integrally formed of polyacetal resin so as to cover the rotor magnet 19. The upper and lower shafts of the rotor 4 are held by a base plate 5 and a train wheel bridge 6, and the shaft diameter is extremely thin, 0.2 mm in diameter.
The clearance between the main plate 5 and the train wheel bridge 6 is extremely small, about 0.01 mm.
【００２１】ロータ４の回転運動は輪列機構２におい
て、５番車７から秒針１４を運針させる４番車８、さら
に３番車９から分針１５を運針させる２番車１０、次に
図示していない日ノ裏車、そして時針１６を運針させる
筒車１１へと伝達される。The rotational movement of the rotor 4 is illustrated in the wheel train mechanism 2 by a fourth wheel 8 for moving the second hand 14 from the fifth wheel 7, a second wheel 10 for moving the minute hand 15 from the third wheel 9, and then illustrated. It is transmitted to the hour wheel and the hour wheel 11 that moves the hour hand 16 when it is not running.
【００２２】本発明のチオール化合物の浸漬処理はロー
タ４と地板５およびロータ４と輪列受６の摺動部の潤滑
に応用した。The immersion treatment of the thiol compound of the present invention was applied to lubrication of the sliding portions of the rotor 4 and the ground plate 5 and the sliding portions of the rotor 4 and the train wheel bridge 6.
【００２３】従来は油による潤滑方式を採っていたが、
ロータの軸受部は油の特性を非常に受け易い部分であ
り、低温下では油の粘度上昇によりロータの回転が悪く
なりステップモータの性能が著しく低下する。また高温
下では、油の粘度低下による油の拡散流失が起こり、油
切れによる耐久品質の問題となる。その他にも長期使用
による油の性能劣化やゴミケバ付着による時計の止ま
り、遅れ等の数多くの問題があり、固体潤滑化が切望さ
れている部分である。Conventionally, an oil lubrication system has been adopted.
The bearing portion of the rotor is a part that is very susceptible to the characteristics of oil, and at low temperatures, the rotation of the rotor deteriorates due to an increase in the viscosity of the oil, and the performance of the step motor is significantly reduced. At a high temperature, diffusion and loss of oil occur due to a decrease in the viscosity of the oil, which causes a problem of durability due to lack of oil. In addition, there are many other problems such as deterioration of oil performance due to long-term use and stoppage and delay of the watch due to sticking of dust, and this is a part where solid lubrication is desired.
【００２４】さて次に、上述した時計用摺動部品の製造
方法について説明する。本発明の効果を確かめるため
に、使用したチオール化合物の種類を変えて実験を行っ
た。実験に用いたチオール化合物は２種類ある。第一は
アルキル基としてＣ１８Ｈ３７−をもちいたＣ１８Ｈ３
７ＳＨである。第二はこれと比較する意味でアミノ基を
有するＮＨ２Ｃ６Ｈ１２ＳＨである。実施手順として
は、それぞれのチオール化合物をエチルアルコールにモ
ル濃度で１ｍＭに溶解し、チオール溶液を作成した。Next, a method of manufacturing the above-described timepiece sliding component will be described. In order to confirm the effect of the present invention, an experiment was conducted by changing the type of the thiol compound used. There are two types of thiol compounds used in the experiments. The first is C18H3 using C18H37- as the alkyl group.
7SH. The second is NH2C6H12SH having an amino group in comparison with this. As a working procedure, each thiol compound was dissolved in ethyl alcohol at a molar concentration of 1 mM to prepare a thiol solution.
【００２５】次に、コーティングとして被コーティング
部品であるロータ４および地板５、輪列受６を網籠に入
れ、チオール溶液を満たした容器の中にセットする。１
０分間放置する。網籠を取り出し遠心分離方式で液の振
り切りを行い、乾燥させた。溶媒がエチルアルコールの
ため、容易に乾燥できる。以上の処理を施したロータ４
および地板５、輪列受６を用いて組み立てた腕時計の摩
擦係数を測定した。Ｃ１８Ｈ３７ＳＨを処理したものの
摩擦係数は０．０７であった。それに対してＮＨ２Ｃ６
Ｈ１２ＳＨを処理したものは０．１であった。なお、こ
の場合の摩擦係数はロータ４が回転しているときの軸受
体との間の動摩擦係数である。Next, the rotor 4, the base plate 5, and the train wheel bridge 6, which are parts to be coated, are put into a mesh basket and set in a container filled with a thiol solution. 1
Leave for 0 minutes. The net basket was taken out and the liquid was shaken off by a centrifugal separation method and dried. Since the solvent is ethyl alcohol, it can be easily dried. Rotor 4 that has been subjected to the above processing
The friction coefficient of the wristwatch assembled using the base plate 5 and the train wheel bridge 6 was measured. The coefficient of friction of C18H37SH treated was 0.07. On the other hand, NH2C6
The value obtained by treating H12SH was 0.1. The friction coefficient in this case is a coefficient of dynamic friction between the rotor 4 and the bearing when the rotor 4 is rotating.
【００２６】そこで、この組立体を輪列耐久試験に投入
し、モータ起動電圧性能の経時変化および摺動部の摩耗
状態を調査した。初期のモータ起動電圧は、Ｃ１８Ｈ３
７ＳＨを処理したものが０．４Ｖ、ＮＨ２Ｃ６Ｈ１２Ｓ
Ｈを処理したもは０．７Ｖであった。摩擦係数が大きい
いほど、ロータを回転するのに要するエネルギーは大き
くなり、モータの起動電圧は高くなる。モータの起動電
圧は低ければ、低い程良い。特に腕時計のような電池で
駆動される時計においては駆動するための電源にあまり
余裕がないので、できるだけ低電圧でモータを駆動でき
ることが望ましい。次に耐久試験後のモータ起動電圧を
測定した。いずれも初期の値と同じであった。さらに組
立体を分解し、摺動部の摩耗状態を観察した。いずれも
摩耗が見られなかった。Then, this assembly was put into a wheel train durability test, and the change over time in the motor starting voltage performance and the abrasion state of the sliding portion were examined. The initial motor starting voltage is C18H3
0.4V, NH2C6H12S after 7SH treatment
In the case of treating H, the voltage was 0.7V. The higher the coefficient of friction, the greater the energy required to rotate the rotor and the higher the starting voltage of the motor. The lower the starting voltage of the motor, the better. In particular, in a timepiece driven by a battery such as a wristwatch, there is not much room for a power source for driving, so it is desirable that the motor can be driven with a voltage as low as possible. Next, the motor starting voltage after the durability test was measured. Both were the same as the initial values. Further, the assembly was disassembled, and the state of wear of the sliding portion was observed. No wear was observed in any of them.
【００２７】また、従来の潤滑油による方式では潤滑油
の温度特性により、低温下に於けるモータ性能の低下が
避けられなかったが、本方式によるものでは、低温下に
於いても常温と同様のモータ性能が得られた。すなわ
ち、耐久性に加えて耐環境性においてもその効果が大き
いことが判明した。Further, in the conventional system using lubricating oil, a decrease in motor performance at a low temperature was unavoidable due to the temperature characteristics of the lubricating oil. Motor performance was obtained. That is, it was found that the effect was great not only in durability but also in environmental resistance.
【００２８】次に、その他の実施例として３つの例を挙
げる。Next, three examples will be given as other embodiments.
【００２９】（３番車に適用した例）図３は、腕時計の
３番車２０のカナと２番車２１の歯車の噛み合いを表す
部分断面図である。リューズを図の矢印方向に引き出す
ことにより、３番車２０の下ほぞが実線から点線へと移
動する特殊な構造で、３番車２０のカナと２番車２１の
歯車の噛み合いが外れる。リューズを元に戻すと、確率
的に３番車２０のカナ先端と２番車２１の歯車先端が正
常に噛み合わず突っ張ることがある。この突っ張った状
態のままで放置しておくと３番車２０のカナが曲がり、
時計の止まり、遅れとなってしまう。そこで、３番車２
０に本発明の処理を施す。このことにより３番車２０の
カナ先端の摩擦係数を低減させることができ、２番車２
１の歯車先端との突っ張り発生確率を小さくすることが
できる。本発明者らの実験によると、本発明の処理を施
さなかった場合に比べてその発生確率をおよそ 10分の1
以下にすることができた。(Example applied to the third wheel) FIG. 3 is a partial sectional view showing the engagement between the pinion of the third wheel 20 and the gear of the second wheel 21 of the wristwatch. By pulling out the crown in the direction of the arrow in the drawing, the lower tenon of the third wheel & pinion 20 moves from the solid line to the dotted line, and the engagement of the pinion of the third wheel & pinion 20 and the gear of the second wheel & pinion 21 is released. When the crown is returned to its original position, the tip of the pinion of the third wheel & pinion 20 and the tip of the gear of the second wheel & pinion 21 may stochastically stagger without probability. If you leave it in this stretched state, the kana of the third car 20 will bend,
The clock stops and is delayed. So, 3rd car 2
0 is subjected to the processing of the present invention. As a result, the friction coefficient at the tip of the pinion of the third wheel 20 can be reduced.
It is possible to reduce the probability of occurrence of tension with the tip of the first gear. According to experiments performed by the present inventors, the probability of occurrence was approximately one-tenth that of the case where the processing of the present invention was not performed.
I was able to:
【００３０】（曜星車、曜修正伝え車に適用した例）図
４と図５は腕時計のカレンダー部の輪列部品である曜星
車２２と曜修正伝え車２３との歯車の噛み合いを表す部
分平面図と部分断面図である。リューズを回し曜日修正
すると、曜星車２２と曜修正伝え車２３の摩擦による突
っ張り感があり、製品として問題となることがあった。
曜星車２２と曜修正伝え車２３の少なくともどちらか一
方の部品に、本発明の処理を施すことにより、歯先の摩
擦係数の低減が可能となり、突っ張り感をなくすことが
できた。FIGS. 4 and 5 show the engagement of gears between a day star wheel 22 and a day correction wheel 23 which are wheel train parts of a calendar part of a wristwatch. It is a partial plan view and a partial sectional view. If the crown is turned to correct the day of the week, there is a feeling of tension due to the friction between the day star wheel 22 and the day correction transmitting wheel 23, which may cause a problem as a product.
By performing the processing of the present invention on at least one of the day star wheel 22 and the day correction transmission wheel 23, the friction coefficient of the tooth tip can be reduced, and the feeling of tension can be eliminated.
【００３１】（ボールベアリングに適用した例）図６は
および図７は自動巻発電時計に用いられているボールベ
アリングの部分平面図と部分断面図である。また、図８
はこのボールベアリングをサブアセンブルした回転錘受
２４を自動巻発電時計に組み込んだ状態を示す部分断面
図である。回転錘２５が内輪２６を軸にして回転すると
ボールベアリングも回転する。この時ボール２７と外輪
２８、押え輪２９および内輪２６との摩擦が起こり各部
品の接触面が摩耗する。ボールベアリングに本発明の処
理を施したところ、ボール２７と内輪２６、外輪２８、
押え輪２９との各接触面の摩擦係数の低減が可能とな
り、回転錘が安定してしかもスムーズに回転するように
なった。この結果、巻き上げ耐久性能、発電効率が向上
した。(Example of Application to Ball Bearing) FIGS. 6 and 7 are a partial plan view and a partial cross-sectional view of a ball bearing used in an automatic winding timepiece. FIG.
FIG. 4 is a partial sectional view showing a state in which a rotary weight receiver 24 in which the ball bearing is sub-assembled is incorporated in an automatic winding timepiece. When the rotating weight 25 rotates around the inner ring 26, the ball bearing also rotates. At this time, friction occurs between the ball 27 and the outer ring 28, the presser ring 29, and the inner ring 26, and the contact surfaces of the respective parts are worn. When the ball bearing was treated according to the present invention, the ball 27, the inner ring 26, the outer ring 28,
The friction coefficient of each contact surface with the presser wheel 29 can be reduced, and the rotating weight can rotate stably and smoothly. As a result, winding durability and power generation efficiency were improved.
【００３２】また、これら３つの例以外にも例えば、腕
時計の切り換え部品として使用されるカンヌキとオシド
リや、２番車の歯車とカナなど様々な摺動部品であって
も適用することができ、その潤滑性能を向上させること
ができる。In addition to these three examples, various sliding parts such as kanuki and mandarin duck used as switching parts of a wristwatch, and gears and kana of a second wheel can be applied. The lubrication performance can be improved.
【００３３】このように、本発明の製造方法によって製
造された摺動部品は、腕時計のステップモータのロータ
とロータを保持する軸受けの摺動部の潤滑のみならず、
歯車どうしの突っ張り等の、特に高荷重部の潤滑に有効
である。As described above, the sliding component manufactured by the manufacturing method of the present invention not only lubricates the rotor of the step motor of the wristwatch and the sliding portion of the bearing holding the rotor, but also
It is particularly effective for lubrication of high-load parts such as struts between gears.
【００３４】[0034]
【発明の効果】以上述べたように、本発明によれば以下
のような効果を有する。As described above, the present invention has the following effects.
【００３５】請求項１記載の発明によれば、チオール化
合物は摺動部品に強く付着できるので摺動部品同士の摺
擦を受けても、長期にわたって安定してチオール化合物
を保持することが可能となった。According to the first aspect of the present invention, since the thiol compound can strongly adhere to the sliding parts, it is possible to stably hold the thiol compound for a long time even if the sliding parts are rubbed. became.
【００３６】請求項２記載の発明によれば、化学式Ｒ−
ＳＨであらわされるチオール化合物を用いることによ
り、非常に低い摩擦係数を実現でき、モータ起動電圧を
低くできる。According to the invention of claim 2, the chemical formula R-
By using a thiol compound represented by SH, a very low friction coefficient can be realized, and the motor starting voltage can be reduced.
【００３７】請求項４記載の発明によれば、腕時計など
の駆動源であるステップモータの、ロータとロータを保
持する軸受体の表面に本発明の製造方法を適用すること
により、優れたモータ性能を長期にわたって保持・安定
させることができる。さらに、温度特性（耐環境性）に
も優れたモータが得られる。According to the fourth aspect of the present invention, excellent motor performance can be obtained by applying the manufacturing method of the present invention to the surface of the rotor and the bearing body holding the rotor of the stepping motor which is the driving source of a wristwatch or the like. Can be held and stabilized for a long time. Further, a motor having excellent temperature characteristics (environmental resistance) can be obtained.
【００３８】また、請求項５記載の発明によれば、この
ような摺動部品を用いることにより、低消費電力で、低
温特性に優れ、長期にわたっての信頼性品質を飛躍的に
高めることができる時計を実現することができる。According to the fifth aspect of the present invention, by using such a sliding component, low power consumption, excellent low-temperature characteristics, and a long-term reliability quality can be dramatically improved. A clock can be realized.
【図１】本発明の一実施例の電子腕時計のステップモー
タおよび輪列部の部分断面図。FIG. 1 is a partial sectional view of a step motor and a wheel train of an electronic wristwatch according to an embodiment of the present invention.
【図２】図１に示すステップモータ部の拡大部分断面
図。FIG. 2 is an enlarged partial sectional view of a step motor section shown in FIG.
【図３】腕時計の３番車カナと２番車の歯車噛み合いの
様子を表す部分断面図。FIG. 3 is a partial cross-sectional view showing how a third wheel pinion and a second wheel gear mesh with each other in a wristwatch.
【図４】カレンダー付腕時計の曜修正伝え車と曜星車の
噛み合いを示す部分平面図。FIG. 4 is a partial plan view showing the engagement of the day correction notification wheel and the day star wheel of the wristwatch with the calendar.
【図５】カレンダー付腕時計の曜修正伝え車と曜星車の
噛み合いを示す部分断面図。FIG. 5 is a partial cross-sectional view showing the engagement between a day correction transmitting wheel and a day star wheel of a wristwatch with a calendar.
【図６】自動巻発電時計に用いられているボールベアリ
ング機構部の部分平面図。FIG. 6 is a partial plan view of a ball bearing mechanism used in the self-winding power generating watch.
【図７】自動巻発電時計に用いられているボールベアリ
ング機構部の部分断面図。FIG. 7 is a partial cross-sectional view of a ball bearing mechanism used in the self-winding power watch.
【図８】ボールベアリング機構部を組み込んだ自動巻発
電時計の部分断面図。FIG. 8 is a partial cross-sectional view of a self-winding power generating timepiece incorporating a ball bearing mechanism.
１．ステップモータ ２．輪列機構 ３．ステータ ４．ロ−タ ５．地板 ６．輪列受 ７．５番車 ８．４番車 ９．３番車 １０．２番車 １１．筒車 １２．中心パイプ １３．文字板 １４．秒針 １５．分針 １６．時針 １７．ロータ軸 １８．ロータカナ １９．ロータ磁石 ２０．３番車 ２１．２番車 ２２．曜星車 ２３．曜修正伝え車 ２４．回転錘受 ２５．回転錘 ２６．内輪 ２７．ボール ２８．外輪 ２９．押え輪 1. Step motor 2. Wheel train mechanism 3. Stator 4. Rotor 5. Main plate 6. Wheel train support 7.5th car 8.4th car 9.3th car 10.2th car 11. Hour wheel 12. Center pipe 13. Dial 14. Second hand 15. Minute hand 16. Hour hand 17. Rotor shaft 18. Rotana kana 19. Rotor magnet 20.3 wheel 21.2 wheel 22. Day star car 23. Day correction report car 24. Rotating weight receiver 25. Rotating weight 26. Inner ring 27. Ball 28. Outer ring 29. Presser wheel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福島 均 長野県諏訪市大和３丁目３番５号 セイコ ーエプソン株式会社内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hitoshi Fukushima 3-3-5 Yamato, Suwa-shi, Nagano Prefecture Seiko Epson Corporation
Claims (5)
ール化合物の溶液に浸漬してコーティング処理すること
により、前記チオール化合物を前記摺動部品表面に付着
させることを特徴とする時計用摺動部品の製造方法。1. A timepiece wherein a gold film is formed on a surface of a sliding component, and the coating is immersed in a solution of a thiol compound to perform a coating treatment, whereby the thiol compound is attached to the surface of the sliding component. For manufacturing sliding parts for automobiles.
の化学式で表されることを特徴とする請求項１記載の時
計用摺動部品の製造方法。 Ｒ−ＳＨ Ｒ：アルキル基、Ｓ：硫黄、Ｈ:水素2. The method according to claim 1, wherein the thiol compound according to claim 1 is represented by the following chemical formula. R-SH R: alkyl group, S: sulfur, H: hydrogen
て製造することを特徴とする時計用摺動部品。3. A timepiece sliding part manufactured using the manufacturing method according to claim 1.
用ステップモータのロータとこのロータを保持する軸受
体であることを特徴とする時計用摺動部品。4. The timepiece sliding component according to claim 3, wherein the timepiece sliding component is a rotor of a timepiece stepping motor and a bearing for holding the rotor.
を用いることを特徴とする時計。5. A timepiece using the sliding part for a timepiece according to claim 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18253396A JPH1026671A (en) | 1996-07-11 | 1996-07-11 | Sliding parts for watches, methods for manufacturing the same, and watches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18253396A JPH1026671A (en) | 1996-07-11 | 1996-07-11 | Sliding parts for watches, methods for manufacturing the same, and watches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1026671A true JPH1026671A (en) | 1998-01-27 |
Family
ID=16119975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18253396A Withdrawn JPH1026671A (en) | 1996-07-11 | 1996-07-11 | Sliding parts for watches, methods for manufacturing the same, and watches |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1026671A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017522572A (en) * | 2014-08-01 | 2017-08-10 | カルティエ・インターナショナル・アクチエンゲゼルシャフト | Watch component having a surface with silk fibroin |
| CN109507860A (en) * | 2017-09-14 | 2019-03-22 | 精工爱普生株式会社 | Clock component, clock machine core and clock and watch |
-
1996
- 1996-07-11 JP JP18253396A patent/JPH1026671A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017522572A (en) * | 2014-08-01 | 2017-08-10 | カルティエ・インターナショナル・アクチエンゲゼルシャフト | Watch component having a surface with silk fibroin |
| CN109507860A (en) * | 2017-09-14 | 2019-03-22 | 精工爱普生株式会社 | Clock component, clock machine core and clock and watch |
| CN109507860B (en) * | 2017-09-14 | 2022-03-01 | 精工爱普生株式会社 | Timepiece component, timepiece movement, and timepiece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5526870B2 (en) | Clock train and clock | |
| RU2718342C1 (en) | Clock component with improved self-lubricant | |
| CN109507860B (en) | Timepiece component, timepiece movement, and timepiece | |
| JP3055407B2 (en) | Sliding parts for watches, methods for manufacturing the same, and watches | |
| EP0560641B1 (en) | Phosphating method of steel pieces in order to improve their corrosion and wear resistance | |
| US20090201774A1 (en) | Contact component and timepiece | |
| CN101196725A (en) | Clock parts and clocks with the clock parts | |
| JP3931269B2 (en) | Gear device | |
| JPS6317317B2 (en) | ||
| JP2011102780A (en) | Component for timepiece and timepiece | |
| JPH11133162A (en) | Analog electronic watch | |
| JPS6069197A (en) | Precision friction parts | |
| US20080130424A1 (en) | Timepiece component and timepiece having the timepiece component | |
| JP3651217B2 (en) | Method and apparatus for manufacturing sliding parts for timepiece, and timepiece | |
| JPS6021229B2 (en) | electronic watch | |
| EP1829953A1 (en) | Slide material, process for producing the same and apparatus utilizing the slide material | |
| JPH01274A (en) | precision sliding parts | |
| JP2004279108A (en) | Setting lever, yoke, and clock | |
| HK40085831B (en) | Method for manufacturing a micromechanical component, in particular a timepiece mobile having an optimised surface | |
| JPH032951B2 (en) | ||
| JP2013238627A (en) | Timepiece wheel train and timepiece | |
| JPS5813621B2 (en) | electronic clock | |
| JPS6233272B2 (en) | ||
| JPS59113098A (en) | Precision sliding part | |
| JP2003232870A (en) | Timepiece component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20031007 |