JP2003098274A - Facing component for timepiece, and manufacturing method thereof - Google Patents
Facing component for timepiece, and manufacturing method thereofInfo
- Publication number
- JP2003098274A JP2003098274A JP2001288393A JP2001288393A JP2003098274A JP 2003098274 A JP2003098274 A JP 2003098274A JP 2001288393 A JP2001288393 A JP 2001288393A JP 2001288393 A JP2001288393 A JP 2001288393A JP 2003098274 A JP2003098274 A JP 2003098274A
- Authority
- JP
- Japan
- Prior art keywords
- weak magnetic
- molded body
- metal film
- powder
- timepiece
- 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.)
- Granted
Links
Landscapes
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、時計用外装部品お
よびその製造方法に関し、とくに、所定の電波を受信し
て時刻の修正を自動的に行う電波時計に用いる時計用外
装部品およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece exterior component and a method for manufacturing the same, and more particularly to a timepiece exterior component for use in a radio-controlled timepiece that receives a predetermined radio wave and automatically corrects the time and a method for producing the same. Regarding
【０００２】[0002]
【従来の技術】所定の電波を受信して、時刻の修正を自
動的に行う電波修正タイプの腕時計がすでに実用化され
ている。電波時計においては、電波を受信するアンテナ
近傍に金属部品が配置されていると、金属部品により電
波が減衰し、受信障害を引き起こす。そのため、電波時
計用のケース、バンドなどの外装部品には、樹脂やセラ
ミックスなどの非導電性材料が用いられていた。また、
金属色の外観を持たせるためには、こうした非導電性材
料からなる部品の表面に、アルミニウムなどを分散させ
た塗料により塗装膜を形成する方法などが行われてい
た。2. Description of the Related Art A radio wave correction type wristwatch that receives a predetermined radio wave and automatically adjusts the time has already been put into practical use. In a radio-controlled timepiece, if a metal part is arranged near an antenna that receives a radio wave, the metal part attenuates the radio wave and causes a reception failure. Therefore, non-conductive materials such as resins and ceramics have been used for exterior parts such as cases and bands for radio-controlled watches. Also,
In order to give a metallic color appearance, a method of forming a coating film on the surface of a part made of such a non-conductive material with a paint in which aluminum or the like is dispersed has been used.
【０００３】一方、電波時計用の時計ケースとして金属
を用いる方法としては、時計ケースの上面に上面スイッ
チを設け、上面スイッチのスイッチ釦内にチップアンテ
ナを時計ケースの上面よりも上方に突出させた状態で設
ける方法（特開平１１−０６４５４４号公報）や、時計
ケースの少なくとも中央部分にメタルリングを用い、ケ
ース底部にはガラスなどの非金属を用い、メタルリング
の内側に、電気伝導性を有しない材料からなるスペーサ
ーリングを設ける方法（特開２００１−３３５７１号公
報）などが提案されている。On the other hand, as a method of using a metal as a watch case for a radio-controlled watch, an upper switch is provided on the upper surface of the watch case, and a chip antenna is projected above the upper surface of the watch case in the switch button of the upper switch. In the state (Japanese Patent Laid-Open No. 11-064544), a metal ring is used at least in the center of the watch case, a non-metal such as glass is used in the bottom of the case, and the metal ring has electrical conductivity. A method of providing a spacer ring made of a non-use material (Japanese Patent Laid-Open No. 2001-33571) has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】従来、電波腕時計用の
外装部品としては、アクリロニトリル−ブタジエン−ス
チレンなど樹脂やジルコニアなどのセラミックスが広く
用いられている。しかし、樹脂を用いた場合、その表面
に塗装膜などを形成することにより、金属調の外観を得
ることはできるが、金属に比べて比重が小さく、金属が
持つ重厚感が得られなかった。また、セラミックスの場
合は、難加工性の脆性材料であるため、デザイン自由度
に制約があるばかりでなく、部品の加工時や時計外装部
品としての使用中に、部品にクラックが入るなどの問題
点を有していた。一方、時計ケースなどの外装部品およ
びその一部に金属を用いた場合は、その金属の種類にか
かわらずアンテナを特殊な形状に変更する必要が生じた
り、アンテナと金属部品との位置関係に制約が生じ、幅
広いデザインへの対応が困難であるという問題点を有し
ていた。Conventionally, resins such as acrylonitrile-butadiene-styrene and ceramics such as zirconia have been widely used as exterior parts for radio-controlled wristwatches. However, when a resin is used, a metallic film-like appearance can be obtained by forming a coating film or the like on the surface thereof, but the specific gravity is smaller than that of metal, and the solid feeling of metal cannot be obtained. Also, in the case of ceramics, since it is a brittle material that is difficult to work, there is not only a restriction on the degree of freedom in design, but also problems such as cracks in the parts during the processing of the parts and during use as watch exterior parts. Had a point. On the other hand, when metal is used for exterior parts such as watch cases and parts thereof, it is necessary to change the antenna to a special shape regardless of the type of metal, or there is a restriction on the positional relationship between the antenna and metal parts. However, there is a problem that it is difficult to deal with a wide range of designs.
【０００５】〔発明の目的〕したがって本発明の目的
は、上記問題点を解決して、金属のような重厚感と外観
を有し、デザイン自由度を向上させ、電波受信障害を起
こさない電波時計用外装部品とその製造方法を提供する
ことにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems, to have a solid feeling and appearance like a metal, to improve the degree of freedom in design, and to prevent radio wave reception interference. It is to provide an exterior component for a vehicle and a manufacturing method thereof.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の時計用外装部品は、熱可塑性樹脂に弱磁性
体粉末が分散された材料からなる成形体の表面に、弱磁
性体からなる金属膜を有することを特徴とする。また、
前記成形体中に含まれる前記弱磁性体粉末の含有量は、
１０〜４０体積％であることが好ましい。さらに、前記
成形体は、少なくとも一種類の補強用フィラーを含むこ
とが好ましい。さらに、前記弱磁性体からなる金属膜の
厚さは、０．３μｍ〜２μｍの範囲であることが好まし
い。In order to achieve the above object, the exterior part for a timepiece of the present invention comprises a molded body made of a material in which a weak magnetic powder is dispersed in a thermoplastic resin, and the weak magnetic body is formed on the surface of the molded body. It is characterized by having a metal film made of. Also,
The content of the weak magnetic powder contained in the molded body is
It is preferably 10 to 40% by volume. Furthermore, it is preferable that the molded body contains at least one kind of reinforcing filler. Further, the thickness of the metal film made of the weak magnetic material is preferably in the range of 0.3 μm to 2 μm.
【０００７】また、本発明の時計用外装部品の製造方法
は、熱可塑性樹脂と弱磁性体粉末とを混練して射出成形
用組成物を作製する工程と、前記射出成形用組成物を射
出成形して所望の形状の成形体を得る工程と、前記成形
体表面に弱磁性体からなる金属膜を形成する工程とを有
することを特徴とする。さらに、前記弱磁性体からなる
金属膜を形成する工程は、スパッタリング法によって金
属膜を形成することが好ましい。Further, the method of manufacturing an exterior part for a timepiece of the present invention comprises the steps of kneading a thermoplastic resin and a weak magnetic powder to prepare an injection molding composition, and injection molding the injection molding composition. And a step of obtaining a molded product having a desired shape, and a step of forming a metal film made of a weak magnetic material on the surface of the molded product. Further, in the step of forming the metal film made of the weak magnetic material, it is preferable to form the metal film by a sputtering method.
【０００８】〔作用〕本発明における時計用外装部品
は、熱可塑性樹脂中に粉末を分散させることにより成形
体の比重が増加し、金属が持つような重厚感を得ること
ができる。さらに、添加する粉末として弱磁性体粉末を
用い、その添加量を１０〜４０体積％とすることによ
り、電波時計用外装部品として、電波受信障害を起こさ
ない成形体を得ることができる。また、成形体中に補強
用フィラーを分散させることにより、成形体の強度や耐
熱性を向上させることができる。さらに、成形体表面に
設けられた金属膜が弱磁性体であり、なおかつその膜厚
が０．３μｍ〜２μｍの範囲であることにより、電波の
受信性能に支障をきたすことなく、良好な金属外観を付
与することができる。[Operation] In the timepiece exterior component of the present invention, by dispersing the powder in the thermoplastic resin, the specific gravity of the molded article is increased, and it is possible to obtain the solid feeling that a metal has. Further, a weak magnetic powder is used as the powder to be added, and the addition amount thereof is set to 10 to 40% by volume, whereby a molded body that does not cause a radio wave reception obstacle can be obtained as an exterior part for a radio-controlled timepiece. Further, by dispersing the reinforcing filler in the molded body, the strength and heat resistance of the molded body can be improved. Furthermore, since the metal film provided on the surface of the molded body is a weak magnetic material and the film thickness is in the range of 0.3 μm to 2 μm, a good metal appearance can be obtained without impairing the radio wave reception performance. Can be given.
【０００９】[0009]
【発明の実施の形態】以下、本発明を実施するための最
良の形態における時計用外装部品およびその製造方法に
ついて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a timepiece exterior part and a method for manufacturing the same will be described in the best mode for carrying out the present invention.
【００１０】本発明における時計用外装部品は、熱可塑
性樹脂に弱磁性体粉末が分散された材料からなる成形体
の表面に、弱磁性体からなる金属膜を有している。ここ
で、熱可塑性樹脂としては、工業的に広く用いられてい
る汎用プラスチックやエンジニアリングプラスチックを
用いることができる。汎用プラスチックの具体例として
は、アクリル、アクリロニトリル−ブタジエン−スチレ
ン樹脂等を用いることができる。また、エンジニアリン
グプラスチックの具体例としては、ナイロン、ポリブチ
レンテフタレート、ポリフェニレンスルファイド、ポリ
エーテルサルフォン、ポリアリレート、ポリアミドイミ
ド等を用いることができる。また、複数の熱可塑性樹脂
からなるポリマーアロイを用いても良く、具体的には、
アクリロニトリル−ブタジエン−スチレン樹脂と、ポリ
カーボネートのポリマーアロイなどを用いることができ
る。The timepiece exterior component according to the present invention has a metal film made of a weak magnetic material on the surface of a molded body made of a material in which a weak magnetic material powder is dispersed in a thermoplastic resin. Here, as the thermoplastic resin, general-purpose plastics or engineering plastics widely used in industry can be used. Specific examples of general-purpose plastics include acrylic and acrylonitrile-butadiene-styrene resin. Further, as specific examples of engineering plastics, nylon, polybutylene terephthalate, polyphenylene sulfide, polyether sulfone, polyarylate, polyamide imide and the like can be used. Further, a polymer alloy composed of a plurality of thermoplastic resins may be used, and specifically,
Acrylonitrile-butadiene-styrene resin and a polymer alloy of polycarbonate can be used.
【００１１】添加する粉末材料は弱磁性体からなり、磁
界内でほとんど磁化されない性質を持つ。すなわち、一
般的には磁石につかない材質を持つ粉末であり、具体的
な材質としては、アルミニウム、タングステン、チタン
などの金属のほか、ＳＵＳ３０４、ＳＵＳ３１６などの
オーステナイト系ステンレス合金などが挙げられる。こ
こで、粉末を添加する目的は、本発明における外装部品
において電波受信障害を起こすことなく部品の比重を増
加させることである。したがって、添加する粉末の材質
は、弱磁性体の中でもＳＵＳ３１６やタングステンなど
のように、比較的比重が大きいものが好ましい。さら
に、成形体の表面平滑性を高めるため、弱磁性体粉末の
平均粒径は２０μｍ以下、より好ましくは１０μｍ以下
が良い。本発明においては、添加する粉末の材質と添加
量を適宜選択することにより、成形体の比重を任意に制
御することができる。また、前記弱磁性体粉末の添加量
は、成形体全体の１０〜４０体積％が好ましく、さらに
好ましくは２０〜３０体積％が良い。弱磁性体粉末の添
加量が１０体積％未満の場合には、粉末添加による比重
増加の効果が得にくく、４０％を越えると、成形体強度
や成形性の低下を引き起こしたり、アンテナの電波受信
性能に悪影響を及ぼす場合がある。The powder material to be added is made of a weak magnetic material and has a property of being hardly magnetized in a magnetic field. That is, it is generally a powder having a material that does not stick to a magnet, and specific materials include metals such as aluminum, tungsten, and titanium, as well as austenitic stainless alloys such as SUS304 and SUS316. Here, the purpose of adding the powder is to increase the specific gravity of the external parts in the present invention without causing a radio wave reception obstacle. Therefore, it is preferable that the powder to be added has a relatively large specific gravity such as SUS316 and tungsten among the weak magnetic materials. Further, in order to enhance the surface smoothness of the molded body, the average particle diameter of the weak magnetic powder is 20 μm or less, more preferably 10 μm or less. In the present invention, the specific gravity of the compact can be arbitrarily controlled by appropriately selecting the material of the powder to be added and the addition amount. The amount of the weak magnetic powder added is preferably 10 to 40% by volume, more preferably 20 to 30% by volume, based on the entire compact. If the addition amount of the weak magnetic substance powder is less than 10% by volume, it is difficult to obtain the effect of increasing the specific gravity due to the addition of the powder. Performance may be adversely affected.
【００１２】また、本発明における時計用外装部品の中
には、成形体強度の向上、耐熱性の向上などを目的とし
て、種々の補強フィラーを添加、分散させても良い。補
強フィラーとしては、ガラス繊維、炭素繊維、アルミナ
繊維、ウオラストナイト、モンモリロナイト、チタン酸
カリウム、タルク、マイカ、シリカなどを用いることが
でき、複数の補強フィラーを添加しても良い。Further, various reinforcing fillers may be added and dispersed in the exterior parts for a timepiece according to the present invention for the purpose of improving the strength of the molded body and the heat resistance. As the reinforcing filler, glass fiber, carbon fiber, alumina fiber, wollastonite, montmorillonite, potassium titanate, talc, mica, silica or the like can be used, and a plurality of reinforcing fillers may be added.
【００１３】さらに、本発明における外装部品は、その
表面に弱磁性体からなる金属膜を有している。ここで、
成形体表面に金属膜を形成する目的は、電波受信障害を
起こすことなく、時計外装部品の表面に耐食性と美しい
金属外観を付与することである。したがって、本発明の
金属膜の材質としては、弱磁性体の中でも、ＳＵＳ３１
６、ＳＵＳ３０４、アルミニウム、白金、金、チタンな
どが好ましい。Furthermore, the exterior component of the present invention has a metal film made of a weak magnetic material on its surface. here,
The purpose of forming the metal film on the surface of the molded body is to impart corrosion resistance and a beautiful metal appearance to the surface of the watch exterior component without causing radio wave reception failure. Therefore, as the material of the metal film of the present invention, among the weak magnetic materials, SUS31
6, SUS304, aluminum, platinum, gold, titanium and the like are preferable.
【００１４】また、本発明における金属膜の厚さは、
０．３μｍ〜２μｍの範囲が好ましく、さらに好ましく
は０．５μｍから１μｍの範囲が良い。０．３μｍ未満
の場合は、金属外観が十分に得られず、また時計着用中
のわずかな傷によっても外観を損ねやすい。さらに、金
属膜の厚さが薄すぎる場合は、熱可塑性樹脂中に分散し
た粉末および補強用フィラーに起因した成形体の表面荒
れが、金属膜形成後もそのまま現れやすく、外観品質低
下の原因となる。一方、外装部品表面に形成する金属膜
の厚さが増加するにしたがって電波の減衰が著しくな
り、アンテナの受信特性が低下する。このため、本発明
における金属膜の膜厚は、２μｍ以下さらに好ましくは
１μｍ以下が良い。厚さが２μｍを越えると、腕時計の
電波受信機能に支障をきたし、使用上問題となる。本発
明において、弱磁性体からなる金属膜の厚さを０．３μ
ｍから２μｍの範囲とすることにより、腕時計としての
電波受信機能に支障をきたすことなく、金属色の良好な
外観を付与することができる。The thickness of the metal film in the present invention is
The range of 0.3 μm to 2 μm is preferable, and the range of 0.5 μm to 1 μm is more preferable. When the thickness is less than 0.3 μm, a metallic appearance cannot be sufficiently obtained, and the appearance is likely to be damaged even by a slight scratch during wearing the watch. Further, if the thickness of the metal film is too thin, the surface roughness of the molded body due to the powder and reinforcing filler dispersed in the thermoplastic resin, it is likely to appear as it is even after the metal film is formed, and cause the deterioration of the appearance quality. Become. On the other hand, as the thickness of the metal film formed on the surface of the exterior component increases, the attenuation of radio waves becomes remarkable and the reception characteristics of the antenna deteriorate. Therefore, the thickness of the metal film in the present invention is preferably 2 μm or less, more preferably 1 μm or less. If the thickness exceeds 2 μm, the radio wave reception function of the wristwatch is hindered, which causes a problem in use. In the present invention, the thickness of the metal film made of a weak magnetic material is 0.3 μm.
By setting the thickness in the range of m to 2 μm, it is possible to impart a good metallic color appearance without impairing the radio wave reception function of the wristwatch.
【００１５】このように、本発明においては、射出成形
用組成物中に添加する粉末および成形体表面に形成する
薄膜材料として金属を用いている。しかし、いずれの材
料も弱磁性体からなり、その量が限定されているため
に、これらの金属部分が電波受信感度に及ぼす影響は極
めて小さく、電波時計の受信機能に支障をきたすことは
ない。一方、鉄、コバルト、ニッケルなど元素や、ＳＵ
Ｓ４３０のようなフェライト系ステンレス合金など、磁
界内で極めて強く磁化される材料、すなわち強磁性を示
す材料は、アンテナ受信感度を著しく低下させる。この
ため、本発明の金属部分として用いることは不適当であ
る。ここで、ＳＵＳ３１６のようなオーステナイト系ス
テンレスなどの弱磁性体は、強磁性体に比べて電波受信
感度の低下に及ぼす影響は少ない。しかし、これらの材
料をそのままプレス成形するなどして得た従来の外装部
品では、電波時計として所定の電波を受信する機能に支
障をきたすため、本発明で得られるような外装部品のデ
ザイン自由度を得ることはできない。As described above, in the present invention, the metal is used as the powder added to the injection molding composition and the thin film material formed on the surface of the molded body. However, since each material is made of a weak magnetic material and its amount is limited, the influence of these metal parts on the radio wave reception sensitivity is extremely small, and the reception function of the radio timepiece is not hindered. On the other hand, elements such as iron, cobalt, nickel, and SU
Materials that are extremely strongly magnetized in a magnetic field, that is, materials that exhibit ferromagnetism, such as ferritic stainless alloys such as S430, significantly reduce the antenna reception sensitivity. Therefore, it is unsuitable for use as the metal part of the present invention. Here, a weak magnetic material such as austenitic stainless steel such as SUS316 has less influence on the decrease in radio wave reception sensitivity than a ferromagnetic material. However, the conventional exterior parts obtained by directly press-molding these materials impair the function of receiving a predetermined radio wave as a radio-controlled timepiece, so that the degree of freedom in designing the exterior parts as obtained by the present invention is high. Can't get
【００１６】また、本発明における時計用外装部品にお
いては、成形体と金属膜との密着性の向上および金属膜
の外観品質の向上などを目的として、成形体表面と金属
膜との間に、ウレタン系などの熱硬化性樹脂や弱磁性体
からなる金属などの中間層を設けても良い。さらに、金
属膜形成後の外装部品表面の耐食性、耐摩耗性、耐薬品
性などを向上させる目的で、金属膜の表面に熱硬化性樹
脂などの膜を形成しても良い。Further, in the exterior part for a timepiece according to the present invention, in order to improve the adhesion between the molded body and the metal film and the appearance quality of the metal film, An intermediate layer made of a thermosetting resin such as urethane or a metal made of a weak magnetic material may be provided. Further, a film of thermosetting resin or the like may be formed on the surface of the metal film for the purpose of improving the corrosion resistance, wear resistance, chemical resistance, etc. of the surface of the exterior component after forming the metal film.
【００１７】次に本発明における電波時計用外装部品の
製造方法について説明する。熱可塑性樹脂と弱磁性体粉
末とを加圧ニーダー等を用いて混練し、射出成形用組成
物を作製する。ここで、予め重合時に補強用フィラーを
微細に分散させて強化した熱可塑性樹脂を用いても良
い。また、混練時に、ガラス繊維、炭素繊維、タルクな
どの補強用フィラーを添加してもよい。混練後は必要に
応じてペレタイザー等を利用して造粒する。次に、射出
成形機等を用いて得られた成形用組成物を成形し、時計
用ケース、裏蓋、バンド駒など所望の形状の成形体を得
る。Next, a method of manufacturing the radio-controlled watch exterior component of the present invention will be described. The thermoplastic resin and the weak magnetic powder are kneaded using a pressure kneader or the like to prepare an injection molding composition. Here, a thermoplastic resin in which a reinforcing filler is finely dispersed in advance during polymerization may be used. Further, at the time of kneading, a reinforcing filler such as glass fiber, carbon fiber or talc may be added. After kneading, granulate using a pelletizer or the like as needed. Next, the obtained molding composition is molded using an injection molding machine or the like to obtain a molded product having a desired shape such as a watch case, a back cover, and a band piece.
【００１８】次に、得られた成形体の表面に、弱磁性体
からなる金属膜を形成する。従来、樹脂表面に金属外観
を持たせる方法としては、金属色を有する塗料をスプレ
ーコーティングする方法や、クロムなどの金属をメッキ
する方法などが広く行われている。しかし、塗装膜の場
合は基板に対する膜の密着力が弱く、耐摩耗性に劣ると
いう欠点がある。一方、樹脂表面にメッキを施す際に
は、一般的に下地メッキとしてニッケルメッキを行う
が、ニッケルは強磁性体であるため、電波受信特性に悪
影響を及ぼす。また、密着性の良いメッキ膜を得るため
には、予め樹脂表面を粗化する必要があり、これに適し
た樹脂は、アクリロニトリル−ブタジエン−スチレン樹
脂やポリアセタールなど、一部の種類の樹脂に限定され
る。さらに、このように粗化した表面にメッキを重ね、
最終的に平滑で良好な外観を得るためには、全体として
５〜１０μｍ以上のメッキ厚が必要となるため、電波受
信障害を引き起こす点からも好ましくない。Next, a metal film made of a weak magnetic material is formed on the surface of the obtained molded body. Conventionally, as a method of giving a metallic appearance to a resin surface, a method of spray-coating a paint having a metallic color, a method of plating a metal such as chromium, and the like are widely used. However, in the case of a coating film, the adhesion of the film to the substrate is weak and the abrasion resistance is poor. On the other hand, when plating the resin surface, nickel plating is generally performed as a base plating, but since nickel is a ferromagnetic material, it adversely affects radio wave reception characteristics. Further, in order to obtain a plated film with good adhesion, it is necessary to roughen the resin surface in advance, and the resin suitable for this is limited to some types of resins such as acrylonitrile-butadiene-styrene resin and polyacetal. To be done. Furthermore, plating is layered on the surface thus roughened,
In order to finally obtain a smooth and good appearance, a plating thickness of 5 to 10 μm or more is required as a whole, which is not preferable from the viewpoint of causing a radio wave reception obstacle.
【００１９】ここで、本発明において前記金属膜を形成
する方法は、スパッタリングによる方法が好ましい。ス
パッタリング法は、プラズマ中のイオンを陰極である蒸
発材料に高速で衝突させることにより成形体表面に被膜
を形成させる方法である。この方法では、塗装やメッキ
に比べて密着性の良い膜が得られ、なおかつ薄い膜厚で
も良好な金属外観を得ることができる。すなわち、厚さ
１μｍ程度の膜であっても、外観が平滑かつ良好で耐傷
性に優れた時計外装部品を得ることができる。このよう
に、金属膜厚を薄くすることができるため、電波時計の
受信機能に支障のない外装部品を得ることができる。さ
らに、スパッタリング法では、金属膜の組成制御が容易
であり、なおかつメッキとは異なり、幅広い種類の樹脂
に対して製膜が可能である。これにより、外装部品のデ
ザイン自由度を拡大することができる。Here, in the present invention, the method for forming the metal film is preferably a method by sputtering. The sputtering method is a method of forming a film on the surface of a compact by causing ions in plasma to collide with an evaporation material that is a cathode at a high speed. With this method, a film having better adhesion than coating or plating can be obtained, and a good metal appearance can be obtained even with a thin film thickness. That is, even with a film having a thickness of about 1 μm, it is possible to obtain a timepiece exterior component having a smooth and good appearance and excellent scratch resistance. Since the metal film thickness can be reduced in this manner, it is possible to obtain an exterior component that does not hinder the reception function of the radio-controlled timepiece. Further, in the sputtering method, composition control of the metal film is easy, and unlike plating, film formation can be performed on a wide variety of resins. As a result, the degree of freedom in designing the exterior parts can be increased.
【００２０】[0020]
【実施例】以下、本発明の実施例を、図面に基づいてさ
らに詳細に説明する。本実施例では電波時計用外装部品
について述べるが、本発明は、電波受信機能を持たない
一般的な腕時計用外装部品に用いることも十分に可能で
ある。Embodiments of the present invention will now be described in more detail with reference to the drawings. In the present embodiment, the exterior parts for radio timepieces will be described, but the present invention can be sufficiently applied to general exterior parts for wrist watches that do not have a radio wave reception function.
【００２１】（実施例１）図１は本発明における実施例
１を示す図であり、（Ａ）は実施例１で用いた電波時計
用ケースの平面図であり、（Ｂ）は（Ａ）における線分
ａ−ｂの断面図である。図１に示すように、本実施例の
時計ケース１は、ポリブチレンテレフタレートからなる
熱可塑性樹脂４に、タングステンからなる弱磁性体粉末
５と炭素繊維からなる補強用フィラー６とが均一に分散
された成形体７の表面に、ＳＵＳ３１６組成からなる金
属膜８が形成されている。ここで、金属膜８の膜厚は１
μｍである。(Embodiment 1) FIG. 1 is a view showing Embodiment 1 of the present invention, (A) is a plan view of a radio-controlled timepiece case used in Embodiment 1, and (B) is (A). FIG. 4 is a cross-sectional view taken along the line ab in FIG. As shown in FIG. 1, in a watch case 1 of this embodiment, a weak magnetic powder 5 made of tungsten and a reinforcing filler 6 made of carbon fiber are uniformly dispersed in a thermoplastic resin 4 made of polybutylene terephthalate. A metal film 8 made of a SUS316 composition is formed on the surface of the formed body 7. Here, the thickness of the metal film 8 is 1
μm.
【００２２】次に、本実施例における時計用外装部品の
製造方法について説明する。熱可塑性樹脂４として、ポ
リブチレンテレフタレート６３体積％と、弱磁性体粉末
５として平均粒径１０μｍのタングステン粉末１７体積
％と、補強用フィラー６として炭素繊維２０体積％と
を、加圧ニーダーを用いて混練した後、ペレット化して
射出成形用組成物を作製した。得られた射出成形用組成
物を射出成形機を用いて成形し、図１(Ａ）に示す腕時
計ケースの成形体を得た。次に、得られた成形体を洗
浄、乾燥した後、３×１０-3Ｔｏｒｒの真空中でスパッ
タリング法により金属膜８を成形体表面に形成し、時計
ケース１を作製した。ここで、金属膜８は弱磁性体であ
るＳＵＳ３１６の組成を有し、その膜厚は１μｍであ
る。Next, a method of manufacturing the timepiece exterior component in this embodiment will be described. Using 63% by volume of polybutylene terephthalate as the thermoplastic resin 4, 17% by volume of the tungsten powder having an average particle diameter of 10 μm as the weak magnetic powder 5, 20% by volume of the carbon fiber as the reinforcing filler 6, and using a pressure kneader. After kneading, the mixture was pelletized to prepare a composition for injection molding. The obtained composition for injection molding was molded using an injection molding machine to obtain a molded watch case shown in FIG. 1 (A). Next, the obtained molded body was washed and dried, and then the metal film 8 was formed on the surface of the molded body by a sputtering method in a vacuum of 3 × 10 −3 Torr, to manufacture the watch case 1. Here, the metal film 8 has a composition of SUS316, which is a weak magnetic material, and its film thickness is 1 μm.
【００２３】次に、得られた時計ケース１を用いて電波
受信特性の評価を行った。本実施例により得られた時計
ケース１の内部にモジュール３を組み込み、所定の電波
に対するアンテナ２の受信感度を測定した。ここで、ア
ンテナ２はモジュール３の一部を構成している。時計ケ
ース１による受信特性への影響を調べるため、モジュー
ル３を時計ケース１に組み込んだ場合の測定値と、予め
測定しておいたモジュール３単体での測定値とを比較し
て、受信感度の低下量を求めた。時計ケースの構成と受
信特性の評価結果を表１に示す。Next, using the obtained watch case 1, the radio wave reception characteristics were evaluated. The module 3 was incorporated in the watch case 1 obtained in this example, and the receiving sensitivity of the antenna 2 with respect to a predetermined radio wave was measured. Here, the antenna 2 constitutes a part of the module 3. In order to investigate the influence of the watch case 1 on the reception characteristic, the measured value when the module 3 is incorporated in the watch case 1 is compared with the measured value of the module 3 which has been measured in advance, and the reception sensitivity The amount of decrease was calculated. Table 1 shows the configuration of the watch case and the evaluation results of the reception characteristics.
【表１】 [Table 1]
【００２４】（実施例２）熱可塑性樹脂として、ナイロ
ン６５体積％と、弱磁性体粉末として平均粒径１０μｍ
のＳＵＳ３１６粉末２０体積％と、補強用フィラーとし
てガラス繊維１５体積％とを混練して射出成形用組成物
を作製し、実施例１と同形状の時計ケースを成形した。
得られた成形体を洗浄、乾燥した後、金属膜として、ス
パッタリング法により厚さ０．８μｍの白金膜を成形体
表面に形成し、時計ケースを作製した。得られた時計ケ
ースについて、実施例１と同様に受信感度を測定した。
時計ケースの構成とその評価結果を表１に示す。Example 2 Nylon 65% by volume as a thermoplastic resin and weak magnetic substance powder having an average particle size of 10 μm
20 volume% of SUS316 powder and 15 volume% of glass fiber as a reinforcing filler were kneaded to prepare an injection molding composition, and a watch case having the same shape as that of Example 1 was molded.
The obtained molded body was washed and dried, and then a platinum film having a thickness of 0.8 μm was formed as a metal film on the surface of the molded body by a sputtering method to manufacture a watch case. The reception sensitivity of the obtained watch case was measured in the same manner as in Example 1.
Table 1 shows the structure of the watch case and its evaluation results.
【００２５】（実施例３）熱可塑性樹脂として、ポリア
リレート６０体積％と、弱磁性体粉末として平均粒径１
０μｍのタングステン粉末２０体積％と、補強用フィラ
ーとしてガラス繊維２０体積％とを混練して射出成形用
組成物を作製し、実施例１と同形状の時計ケースを成形
した。得られた成形体を洗浄、乾燥した後、金属膜とし
て、スパッタリング法により厚さ０．７μｍのアルミニ
ウム膜を成形体表面に形成し、時計ケースを作製した。
得られた時計ケースについて、実施例１と同様に受信感
度を測定した。時計ケースの構成とその評価結果を表１
に示す。Example 3 As a thermoplastic resin, 60% by volume of polyarylate, and as a weak magnetic substance powder, an average particle size of 1
20% by volume of 0 μm tungsten powder and 20% by volume of glass fiber as a reinforcing filler were kneaded to prepare an injection molding composition, and a watch case having the same shape as that of Example 1 was molded. After washing and drying the obtained molded body, a 0.7 μm-thick aluminum film was formed as a metal film on the surface of the molded body by a sputtering method to manufacture a watch case.
The reception sensitivity of the obtained watch case was measured in the same manner as in Example 1. Table 1 shows the composition of the watch case and its evaluation results.
Shown in.
【００２６】（比較例１）弱磁性体粉末に換えて、強磁
性体粉末である鉄粉末１７体積％を用い、その他の条件
は全て実施例１と同様にして時計ケースを作製し、実施
例１と同様に受信感度を測定した。時計ケースの構成と
その評価結果を表１に示す。(Comparative Example 1) In place of the weak magnetic substance powder, 17% by volume of iron powder, which is a ferromagnetic substance powder, was used. The reception sensitivity was measured in the same manner as in 1. Table 1 shows the structure of the watch case and its evaluation results.
【００２７】（比較例２）実施例１と全く同様に成形体
を作製した後、弱磁性体からなる金属膜に換えて、強磁
性体であるＳＵＳ４３０組成の金属膜をスパッタリング
法により１μｍの厚さで成形体表面に形成した。得られ
た時計ケースを用いて、同様に受信感度を測定した。時
計ケースの構成とその評価結果を表１に示す。(Comparative Example 2) A molded body was prepared in exactly the same manner as in Example 1. Then, a metal film made of a weak magnetic material was replaced with a metal film having a composition of SUS430, which was a ferromagnetic material, by sputtering to a thickness of 1 μm. And formed on the surface of the molded body. The reception sensitivity was similarly measured using the obtained watch case. Table 1 shows the structure of the watch case and its evaluation results.
【００２８】（比較例３）熱可塑性樹脂として、ナイロ
ン４０体積％に対し、粉末として平均粒径１０μｍのＳ
ＵＳ３１６粉末４５体積％と、補強用フィラーとしてガ
ラス繊維１５体積％とを添加し、その他の条件は全て実
施例２と同様にして時計ケースを作製し、受信感度を測
定した。時計ケースの構成とその評価結果を表１に示
す。(Comparative Example 3) As a thermoplastic resin, 40% by volume of nylon was used, and as a powder, S having an average particle size of 10 μm was used.
45% by volume of US316 powder and 15% by volume of glass fiber as a reinforcing filler were added, and a watch case was produced under the same conditions as in Example 2 under all other conditions, and the reception sensitivity was measured. Table 1 shows the structure of the watch case and its evaluation results.
【００２９】（比較例４）熱可塑性樹脂として、ナイロ
ン８０体積％に対し、粉末として平均粒径１０μｍのＳ
ＵＳ３１６粉末５体積％と、補強用フィラーとしてガラ
ス繊維１５体積％を添加し、その他の条件は全て実施例
２と同様にして時計ケースを作製し、受信感度を測定し
た。時計ケースの構成とその評価結果を表１に示す。COMPARATIVE EXAMPLE 4 As a thermoplastic resin, 80% by volume of nylon was used, and as a powder, S having an average particle size of 10 μm was used.
5% by volume of US316 powder and 15% by volume of glass fiber as a reinforcing filler were added, and a watch case was prepared in the same manner as in Example 2 under all other conditions, and the reception sensitivity was measured. Table 1 shows the structure of the watch case and its evaluation results.
【００３０】（比較例５）実施例３と全く同様に成形体
を作製した後、蒸着法により厚さ２５μｍのアルミニウ
ム膜を成形体表面に形成した。得られた時計ケースを用
いて、同様に受信感度を測定した。時計ケースの構成と
その評価結果を表１に示す。Comparative Example 5 A molded body was prepared in exactly the same manner as in Example 3, and then an aluminum film having a thickness of 25 μm was formed on the surface of the molded body by vapor deposition. The reception sensitivity was similarly measured using the obtained watch case. Table 1 shows the structure of the watch case and its evaluation results.
【００３１】（比較例６）実施例３と全く同様に成形体
を作製した後、蒸着法により厚さ０．１μｍのアルミニ
ウム膜を成形体表面に形成した。得られた時計ケースを
用いて、同様に受信感度を測定した。時計ケースの構成
とその評価結果を表１に示す。Comparative Example 6 A molded body was prepared in the same manner as in Example 3, and then an aluminum film having a thickness of 0.1 μm was formed on the surface of the molded body by vapor deposition. The reception sensitivity was similarly measured using the obtained watch case. Table 1 shows the structure of the watch case and its evaluation results.
【００３２】以上に示した実施例により、チタンやアル
ミニウムなどの金属と同程度の比重とステンレスや白金
などが有する金属光沢色を持ち、なおかつ電波受信障害
をほとんど起こさない外装部品が得られた。また、本実
施例および本比較例において、表１における受信感度の
低下量が１デシベル（ｄＢ）未満の場合は、電波時計の
受信性能として問題とはならない。表１に示すように、
実施例１では、成形体中に含まれる弱磁性体粉末として
タングステン粉末を用い、さらに成形体表面には、弱磁
性体であるＳＵＳ３１６組成の金属膜が形成されている
ために、電波受信感度の低下はほとんど認められなかっ
た。一方、比較例１では、強磁性体粉末である鉄粉を用
いているために、受信感度が大幅に低下した。同様に、
比較例２では、成形体表面の金属膜として強磁性体であ
るＳＵＳ４３０組成の膜が形成されているために、実施
例１に比べて受信感度の低下量が大きくなった。From the above-mentioned examples, an exterior part having a specific gravity similar to that of metals such as titanium and aluminum and a metallic luster color of stainless steel, platinum and the like, and causing almost no interference with radio wave reception was obtained. Further, in the present example and the comparative example, when the decrease amount of the reception sensitivity in Table 1 is less than 1 decibel (dB), there is no problem in the reception performance of the radio-controlled timepiece. As shown in Table 1,
In Example 1, tungsten powder was used as the weak magnetic powder contained in the molded body, and a metal film of SUS316 composition, which is a weak magnetic body, was formed on the surface of the molded body. Almost no decrease was observed. On the other hand, in Comparative Example 1, since iron powder, which is a ferromagnetic powder, is used, the reception sensitivity is significantly reduced. Similarly,
In Comparative Example 2, since the film having the composition of SUS430, which is a ferromagnetic material, was formed as the metal film on the surface of the molded body, the amount of decrease in the receiving sensitivity was larger than that in Example 1.
【００３３】実施例２では、粉末の添加量が２０体積％
であることにより、成形体の比重がアルミニウム程度に
増加し、なおかつ受信感度の低下も問題のないレベルで
あった。これに対し、比較例３では、粉末の添加量が４
５体積％と多いため、実施例２に比べて受信感度の低下
量が大きくなった。さらに、比較例３では、粉末の添加
量が多く、熱可塑性樹脂の量が少ないために、成形用組
成物の流動性が悪くなり、成形体に表面荒れが発生し
た。また成形体強度も低下した。一方、比較例４では、
粉末の添加量が５％と少ないため、成形体の比重は一般
の樹脂と同程度であり、成形体の重厚感が得られなかっ
た。In Example 2, the amount of powder added was 20% by volume.
As a result, the specific gravity of the molded body was increased to the level of aluminum, and the reduction in receiving sensitivity was at a level at which there was no problem. On the other hand, in Comparative Example 3, the amount of powder added was 4
Since it was as large as 5% by volume, the amount of decrease in receiving sensitivity was larger than in Example 2. Further, in Comparative Example 3, since the amount of the powder added was large and the amount of the thermoplastic resin was small, the fluidity of the molding composition was deteriorated and the molded body was roughened. In addition, the strength of the molded body also decreased. On the other hand, in Comparative Example 4,
Since the added amount of the powder was as small as 5%, the specific gravity of the molded body was about the same as that of general resin, and the solid feeling of the molded body could not be obtained.
【００３４】実施例３では、金属膜の厚さが０．７μｍ
であり、受信感度の低下は問題のないレベルであり、得
られた時計ケースの外観も良好であった。一方、比較例
５では、金属膜の厚さが２５μｍと厚いため、実施例３
に比べて受信感度の低下量が大きくなった。さらに、比
較例６では、金属膜の厚さが０．１μｍと薄いため受信
感度の低下はほとんど認められなかったが、得られた時
計ケースの外観は、成形体中に分散したガラス繊維によ
る表面荒れが目立ち、なおかつ十分な金属光沢が得られ
なかった。In Example 3, the thickness of the metal film was 0.7 μm.
The decrease in reception sensitivity was at a level without problems, and the appearance of the obtained watch case was also good. On the other hand, in Comparative Example 5, the thickness of the metal film was as thick as 25 μm, so that in Example 3
Compared with, the amount of decrease in reception sensitivity was larger. Further, in Comparative Example 6, since the thickness of the metal film was as thin as 0.1 μm, almost no deterioration in the reception sensitivity was observed, but the appearance of the obtained watch case was the surface due to the glass fibers dispersed in the molded body. Roughness was noticeable, and sufficient metallic luster was not obtained.
【００３５】以上のように、熱可塑性樹脂に、弱磁性体
粉末が好ましくは１０〜４０体積％の量で分散された材
料からなる成形体の表面に、弱磁性体からなり、好まし
くは厚さ０．３μｍ〜２μｍの範囲である金属膜を形成
することにより、金属が持つ重厚感と外観色とを有し、
電波受信障害を起こすことのない時計用外装部品を得る
ことができる。As described above, the surface of the molded body made of the material in which the weak magnetic material powder is dispersed in the thermoplastic resin in an amount of preferably 10 to 40% by volume is made of the weak magnetic material, and preferably has a thickness. By forming a metal film in the range of 0.3 μm to 2 μm, the metal has a solid feeling and appearance color,
It is possible to obtain a timepiece exterior component that does not cause a radio wave reception failure.
【００３６】[0036]
【発明の効果】本発明によれば、所定の電波を受信して
時刻の修正を自動的に行う電波時計に用いる時計用外装
部品において、金属が持つ重厚感と外観色を有し、なお
かつ電波受信障害を起こすことのない外装部品を得るこ
とができる。また、添加粉末の材質と添加量を変化させ
ることにより、任意の比重を持つ外装部品を得ることが
できる。さらに、製造工程も容易であり、適用可能な樹
脂および金属膜の種類も多いため、外装部品のデザイン
自由度が拡大し、電波時計の実用性を拡大することがで
きる。さらに、本発明の時計用外装部品は、電波受信機
能を持たない一般的な腕時計用外装部品としても使用す
ることができる。According to the present invention, an exterior part for a watch used in a radio-controlled timepiece that receives a predetermined radio wave and automatically adjusts the time, has the solid feeling and appearance color of a metal and has the radio wave. It is possible to obtain an exterior part that does not cause reception failure. Further, by changing the material and the amount of the added powder, it is possible to obtain an exterior part having an arbitrary specific gravity. Furthermore, the manufacturing process is easy, and since there are many types of applicable resins and metal films, the degree of freedom in designing the exterior parts can be expanded, and the practicality of the radio-controlled timepiece can be expanded. Further, the timepiece exterior component of the present invention can be used as a general wristwatch exterior component having no radio wave reception function.
【図１】実施例１を示す図であり、（Ａ）は電波時計用
ケースの平面図であり、（Ｂ）は（Ａ）における線分ａ
−ｂの断面図である。1A and 1B are views showing a first embodiment, FIG. 1A is a plan view of a radio-controlled timepiece case, and FIG. 1B is a line segment a in FIG.
It is sectional drawing of -b.
１ 時計ケース ２ アンテナ ３ モジュール ４ 熱可塑性樹脂 ５ 弱磁性体粉末 ６ 補強用フィラー ７ 成形体 ８ 金属膜 1 watch case 2 antenna 3 modules 4 Thermoplastic resin 5 Weak magnetic powder 6 Reinforcing filler 7 molded 8 metal film
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｊ 7/06 Ｃ０８Ｊ 7/06 Ｚ Ｃ０８Ｋ 3/00 Ｃ０８Ｋ 3/00 Ｃ０８Ｌ 101/00 Ｃ０８Ｌ 101/00 // Ｂ２９Ｋ 101:12 Ｂ２９Ｋ 101:12 105:16 105:16 505:00 505:00 Ｂ２９Ｌ 31:00 Ｂ２９Ｌ 31:00 Ｆターム(参考） 4F006 AA11 AA31 AA35 AA38 AA55 AB73 BA06 CA08 DA01 4F071 AA02 AA45 AA48 AA54 AB03 AB06 AB12 AB28 AD01 AE14 AE17 AG12 BA01 BB05 BC07 4F206 AB13 AG03 AG26 AH71 AH81 AR12 JA07 JF02 JW31 JW34 4J002 AA011 BG041 BN151 CF071 CF161 CL001 CM041 CN011 CN031 DA017 DA096 DA116 DC006 DE147 DE187 DJ007 DJ017 DJ047 DJ057 DL007 FA047 FD017 FD206 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C08J 7/06 C08J 7/06 Z C08K 3/00 C08K 3/00 C08L 101/00 C08L 101/00 // B29K 101: 12 B29K 101: 12 105: 16 105: 16 505: 00 505: 00 B29L 31:00 B29L 31:00 F Term (reference) 4F006 AA11 AA31 AA35 AA38 AA55 AB73 BA06 CA08 DA01 4F071 AA02 AA45 AA48 AA54 AB03 AB06 AB12 AB28 AD01 AE14 AE17 AG12 BA01 BB05 BC07 4F206 AB13 AG03 AG26 AH71 AH81 AR12 JA07 JF02 JW31 JW34 4J002 AA011 BG041 BN151 CF071 CF161 CL001 CM041 CN011 CN031 DA017 DA096 DA116 DC006 DE147 DE47 DJ007 DJ017 DJ077
Claims (6)
て、前記成形体が熱可塑性樹脂に弱磁性体粉末が分散さ
れた材料からなり、表面に弱磁性体からなる金属膜を有
する時計用外装部品。1. An exterior part for a timepiece made of a molded body, wherein the molded body is made of a material in which a weak magnetic substance powder is dispersed in a thermoplastic resin, and has a metal film made of a weak magnetic substance on the surface. Exterior parts.
末の含有量が、１０体積％〜４０体積％の範囲にあるこ
とを特徴とする請求項１に記載の時計用外装部品。2. The exterior component for a timepiece according to claim 1, wherein the content of the weak magnetic powder contained in the molded body is in the range of 10% by volume to 40% by volume.
補強用フィラーを含むことを特徴とする請求項１または
請求項２に記載の時計用外装部品。3. The timepiece exterior component according to claim 1, wherein the molded body includes at least one kind of reinforcing filler.
の範囲にあることを特徴とする請求項１から請求項３の
いずれか一項に記載の時計用外装部品。4. The thickness of the metal film is 0.3 μm to 2 μm.
The exterior part for a timepiece according to any one of claims 1 to 3, characterized in that
て射出成形用組成物を作製する工程と、前記射出成形用
組成物を射出成形して所望の形状の成形体を得る工程
と、前記成形体表面に弱磁性体からなる金属膜を形成す
る工程とを有する時計用外装部品の製造方法。5. A step of kneading a thermoplastic resin and a weak magnetic powder to prepare an injection molding composition, and a step of injection molding the injection molding composition to obtain a molded article having a desired shape. And a step of forming a metal film made of a weak magnetic material on the surface of the molded body.
膜を形成する工程が、スパッタリング法によって前記成
形体表面に弱磁性体からなる金属膜を形成する工程であ
ることを特徴とする請求項５に記載の時計用外装部品の
製造方法。6. The step of forming a metal film made of a weak magnetic material on the surface of the molded body is a step of forming a metal film made of a weak magnetic material on the surface of the molded body by a sputtering method. Item 6. A method for manufacturing a timepiece exterior component according to Item 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001288393A JP4668484B2 (en) | 2001-09-21 | 2001-09-21 | Exterior parts for radio clocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001288393A JP4668484B2 (en) | 2001-09-21 | 2001-09-21 | Exterior parts for radio clocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003098274A true JP2003098274A (en) | 2003-04-03 |
| JP4668484B2 JP4668484B2 (en) | 2011-04-13 |
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ID=19111053
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001288393A Expired - Fee Related JP4668484B2 (en) | 2001-09-21 | 2001-09-21 | Exterior parts for radio clocks |
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| Country | Link |
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| JP (1) | JP4668484B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018083972A1 (en) * | 2016-11-04 | 2018-05-11 | 株式会社サンプラ | Method for producing metal-imitating resin molded member, metal-imitating resin molded member and use of metal-imitating resin molded member |
| WO2018225567A1 (en) * | 2017-06-05 | 2018-12-13 | 株式会社アレステクノロジー | Molded article, component for food production apparatus, and polymer product for producing food |
| JP2022165400A (en) * | 2021-04-19 | 2022-10-31 | マニュファクチュール・ドルロジュリ・オーデマ・ピゲ・ソシエテ・アノニム | Method of producing watch component made from composite material |
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| JPS6191254A (en) * | 1984-10-12 | 1986-05-09 | Seiko Epson Corp | Wrist watch case |
| JPS63285488A (en) * | 1987-05-18 | 1988-11-22 | Seiko Epson Corp | Watchcase |
| JPH0222452A (en) * | 1987-04-01 | 1990-01-25 | Seiko Epson Corp | Ornamental member |
| JP2001108763A (en) * | 1999-10-04 | 2001-04-20 | Kawaguchiko Seimitsu Co Ltd | Exterior part for timepiece and manufacturing method thereof |
| JP2001305244A (en) * | 2000-04-20 | 2001-10-31 | Maruman Corporation:Kk | Case for radio wave wristwatch, manufacturing method for the case, and radio wave wristwatch using the case |
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| JPS6191254A (en) * | 1984-10-12 | 1986-05-09 | Seiko Epson Corp | Wrist watch case |
| JPH0222452A (en) * | 1987-04-01 | 1990-01-25 | Seiko Epson Corp | Ornamental member |
| JPS63285488A (en) * | 1987-05-18 | 1988-11-22 | Seiko Epson Corp | Watchcase |
| JP2001108763A (en) * | 1999-10-04 | 2001-04-20 | Kawaguchiko Seimitsu Co Ltd | Exterior part for timepiece and manufacturing method thereof |
| JP2001305244A (en) * | 2000-04-20 | 2001-10-31 | Maruman Corporation:Kk | Case for radio wave wristwatch, manufacturing method for the case, and radio wave wristwatch using the case |
| JP2002031690A (en) * | 2000-07-13 | 2002-01-31 | Torigaa:Kk | Dial face of radio wave wrist watch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018083972A1 (en) * | 2016-11-04 | 2018-05-11 | 株式会社サンプラ | Method for producing metal-imitating resin molded member, metal-imitating resin molded member and use of metal-imitating resin molded member |
| JPWO2018083972A1 (en) * | 2016-11-04 | 2019-03-07 | 株式会社サンプラ | Method of manufacturing metal camouflaged resin molded member, metal camouflaged resin molded member, and method of using metal camouflaged resin molded member |
| WO2018225567A1 (en) * | 2017-06-05 | 2018-12-13 | 株式会社アレステクノロジー | Molded article, component for food production apparatus, and polymer product for producing food |
| JP2022165400A (en) * | 2021-04-19 | 2022-10-31 | マニュファクチュール・ドルロジュリ・オーデマ・ピゲ・ソシエテ・アノニム | Method of producing watch component made from composite material |
| JP7343648B2 (en) | 2021-04-19 | 2023-09-12 | マニュファクチュール・ドルロジュリ・オーデマ・ピゲ・ソシエテ・アノニム | Manufacturing method for composite watch parts |
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