JPH11162278A - Manufacture of lighting type push-button switch cover member - Google Patents

Manufacture of lighting type push-button switch cover member

Info

Publication number
JPH11162278A
JPH11162278A JP34201697A JP34201697A JPH11162278A JP H11162278 A JPH11162278 A JP H11162278A JP 34201697 A JP34201697 A JP 34201697A JP 34201697 A JP34201697 A JP 34201697A JP H11162278 A JPH11162278 A JP H11162278A
Authority
JP
Japan
Prior art keywords
light
colored layer
key top
shielding
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP34201697A
Other languages
Japanese (ja)
Inventor
Norio Suzuki
教郎 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Polymer Co Ltd
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Polymer Co Ltd
Shin Etsu Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shin Etsu Polymer Co Ltd, Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Polymer Co Ltd
Priority to JP34201697A priority Critical patent/JPH11162278A/en
Publication of JPH11162278A publication Critical patent/JPH11162278A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H2009/187—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks having symbols engraved or printed by laser

Landscapes

  • Printing Methods (AREA)
  • Manufacture Of Switches (AREA)
  • Push-Button Switches (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a cover member capable of molding a cover member excellent in design and also excellent in visibility of display part. SOLUTION: A substantially columnar key top member 20 is molded out of silicone rubber, a light transmissire colored layer 21 is formed on the top surface thereof, and a light shielding colored layer 22 is formed on the light transitive colored layer 21 and on the circumferential surface. A base substance 10 is molded out of silicone rubber, and the key top member 20 is adhered to the mounting part 13 of the base substance 10 by a transparent adhesive. The key top member 20 is covered with a masking jig, a light trnsmissive white layer 15 is formed on the whole surface of the base substance 1, and a light transmissive colored layer 16 is formed on the top surface of a specified key top part 12, and a light shielding colored layer 18 of a color different from the light shielding colored layer 22 of the key top member 20 is formed on the whole surface. Thereafter, the masking jig is removed, the light shielding colored layer 18 on the key top member top surface and the light shielding colored layer 22 are working by laser to form display parts 18a, 22a such as character.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、移動体通信機器
等のデータ入力装置やパーソナルコンピュータのキーボ
ード等に代表される押釦スイッチに部品として用いるカ
バー部材の製造方法に係り、詳しくは、外観色彩に大き
な自由度が得られるカバー部材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a cover member used as a part for a data input device such as a mobile communication device or a push button switch typified by a keyboard of a personal computer. The present invention relates to a method for manufacturing a cover member capable of obtaining a large degree of freedom.

【０００２】[0002]

【従来の技術】上述した携帯電話機等の移動体通信機器
のデータ入力装置（押釦スイッチ）にあっては、支承部
に複数の可動部が変位可能に連続する基体をシリコーン
ゴム等のゴム組成物で成形し、この基体の表面全面にカ
ーボンブラック等の遮光性顔料が配合された塗料等で遮
光性着色層を積層形成した後に、可動部上の遮光性着色
層にレーザー光の照射により文字や記号等の表示部を形
成してカバー部材を構成し、このカバー部材を回路基板
に組み付けて構成される。2. Description of the Related Art In a data input device (push button switch) of a mobile communication device such as a portable telephone as described above, a base in which a plurality of movable portions are displaceably connected to a support portion is made of a rubber composition such as silicone rubber. After forming a light-shielding colored layer over the entire surface of the substrate with a paint or the like in which a light-shielding pigment such as carbon black is compounded, the light-shielding colored layer on the movable part is irradiated with a laser beam to form a character or the like. A cover member is formed by forming a display portion such as a symbol, and the cover member is assembled to a circuit board.

【０００３】このような押釦スイッチは、一般に、回路
基板にＬＥＤ等の発光体を設け、この発光体によりキー
トップを照射する照光式に構成される。そして、この押
釦スイッチは、機器のケーシング内にケーシング外へキ
ートップを突出させて組み込まれ、キートップの押圧操
作により可動部の裏面の可動接点が回路基板の固定接点
に接触して回路を開閉する。[0003] Such a push button switch is generally of an illuminated type in which a light emitter such as an LED is provided on a circuit board and a key top is irradiated by the light emitter. The pushbutton switch is installed inside the casing of the device with the keytop protruding out of the casing, and when the keytop is pressed, the movable contact on the back of the movable part contacts the fixed contact on the circuit board to open and close the circuit. I do.

【０００４】[0004]

【発明が解決しようとする課題】ところで、このような
押釦スイッチは、可動部（キートップ）の遮光性着色層
がケーシング外へ露呈し、遮光性着色層の色彩が機器の
意匠に大きな影響を及ぼすため、遮光性着色層を有彩色
等の色彩に構成することが望まれる。しかしながら、遮
光性着色層は、レーザー光の照射により表示部を形成す
ることから、カーボンブラック等の黒色顔料を多量に含
む、通常、主剤となる樹脂バインダに対して８〜２０重
量部程度含有する塗料等で形成され、その色彩も黒色や
灰色に限定され、色彩の選択や色彩の表現の自由度に乏
しいという問題があった。この発明は、上記問題に鑑み
なされたもので、表面の色彩や色彩の表現に大きな自由
度が得られる押釦スイッチ用カバー部材の製造方法を提
供することを目的とする。By the way, in such a push-button switch, the light-shielding colored layer of the movable portion (key top) is exposed outside the casing, and the color of the light-shielding colored layer greatly affects the design of the device. Therefore, it is desired that the light-shielding colored layer is configured to have a color such as a chromatic color. However, since the light-shielding colored layer forms a display portion by irradiation with a laser beam, it contains a large amount of a black pigment such as carbon black, and usually contains about 8 to 20 parts by weight based on a resin binder serving as a main agent. It is formed of a paint or the like, and its color is also limited to black or gray, so that there is a problem that the degree of freedom in color selection and color expression is poor. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a method of manufacturing a cover member for a push button switch, which allows a large degree of freedom in expressing the color of the surface and the color.

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するた
め、請求項１に記載の発明にかかる照光式押釦スイッチ
用カバー部材の製造方法は、キートップ部材を透光性の
樹脂あるいはゴム組成物で成形し、該キートップ部材の
外表面に遮光性第１着色層を形成するとともに、該キー
トップ部材を固着可能な少なくとも１つの取付部と少な
くとも１つのキートップ部とがそれぞれ薄肉のスカート
部を介してベース部に連続する基体を透光性のゴム組成
物で成形し、前記遮光性第１着色層が形成されたキート
ップ部材を前記基体の取付部に固着して前記基体に接着
されたキートップ部材をマスキング治具で被覆し、前記
基体の表面全面に前記キートップ部材の遮光性第１着色
層と異なる色彩の遮光性第２着色層を形成した後に前記
マスキング治具を取り外し、前記キートップ部材の天面
上の遮光性第１着色層および前記キートップ部天面上の
遮光性第２着色層をレーザー光の照射で文字、記号ある
いは図形状に除去して表示部を形成する。In order to achieve the above object, a method of manufacturing a cover member for an illuminated push button switch according to the invention according to the first aspect of the present invention comprises the steps of: And a light-shielding first colored layer is formed on the outer surface of the key top member, and at least one mounting portion capable of fixing the key top member and at least one key top portion are each a thin skirt portion. A base member that is continuous with the base portion is formed with a translucent rubber composition, and the key top member on which the light-shielding first colored layer is formed is fixed to a mounting portion of the base member and adhered to the base member. The key top member is covered with a masking jig, and a light-shielding second colored layer having a different color from the light-shielding first colored layer of the key top member is formed on the entire surface of the base. The light-shielding first colored layer on the top surface of the key-top member and the light-shielding second colored layer on the top surface of the key-top portion are removed into a character, symbol, or figure shape by irradiating a laser beam to the display unit. To form

【０００６】また、請求項２に記載の発明にかかる照光
式押釦スイッチ用カバー部材の製造方法は、キートップ
部材を透光性の樹脂あるいはゴム組成物で成形し、該キ
ートップ部材の少なくとも天面部分に透光性着色層を形
成した後に該透光性着色層に重ねて外表面に遮光性第１
着色層を形成するとともに、前記キートップ部材を固着
可能な少なくとも１つの取付部と少なくとも１つのキー
トップ部とがそれぞれ薄肉のスカート部を介してベース
部に連続する基体を透光性のゴム組成物で成形し、前記
キートップ部材を前記基体の取付部に固着して前記気体
に接着されたキートップ部材をマスキング治具で被覆
し、前記基体の少なくともキートップ部天面部分に透光
性着色層を形成するとともに、該透光性着色層に重ねて
前記基体の表面全面に前記キートップ部材の遮光性第１
着色層と異なる色彩の遮光性第２着色層を形成し、この
後に、前記マスキング治具を取り外し、前記キートップ
部材の天面上の遮光性第１着色層および前記キートップ
部天面上の遮光性第２着色層をレーザー光の照射で文
字、記号あるいは図形状に除去して表示部を形成する。According to a second aspect of the present invention, there is provided a method for manufacturing a cover member for an illuminated push button switch, wherein the key top member is formed of a translucent resin or rubber composition, and at least the top of the key top member is formed. After forming the light-transmitting colored layer on the surface portion, the light-shielding first layer is formed on the outer surface by overlapping the light-transmitting colored layer.
A translucent rubber composition that forms a colored layer and forms a base in which at least one attachment portion and at least one key top portion to which the key top member can be fixed and at least one key top portion are respectively connected to the base portion via a thin skirt portion. The key top member is fixed to the mounting portion of the base, and the key top member adhered to the gas is covered with a masking jig, and at least a top surface portion of the key top portion of the base is transparent. A colored layer is formed, and the light-shielding first material of the key-top member is formed over the entire surface of the substrate so as to overlap the transparent colored layer.
A light-shielding second colored layer having a color different from that of the colored layer is formed. After that, the masking jig is removed, and the light-shielding first colored layer on the top surface of the keytop member and the light-shielding first colored layer on the keytop portion top surface The display portion is formed by removing the light-shielding second colored layer into a character, a symbol, or a figure by irradiating a laser beam.

【０００７】そして、請求項３に記載の発明は、請求項
１または請求項２に記載の発明の照光式押釦スイッチ用
カバー部材の製造方法において、前記遮光性第１彩色層
または遮光性第２彩色層の一方または双方を黒色顔料が
０．０３〜１．５０重量部と有彩色顔料が８〜２０重量
部配合された組成物で形成し、また、請求項４に記載の
発明は、請求項３に記載の照光式押釦スイッチ用カバー
部材の製造方法において、組成物に前記黒色顔料の３〜
１０倍の酸化チタンを含有するものを用いる。According to a third aspect of the present invention, there is provided a method of manufacturing a cover member for an illuminated push button switch according to the first or second aspect of the present invention, wherein the first light-shielding layer or the second light-shielding layer is provided. One or both of the coloring layers are formed of a composition comprising 0.03 to 1.50 parts by weight of a black pigment and 8 to 20 parts by weight of a chromatic pigment. Item 3. The method for producing a cover member for an illuminated push button switch according to Item 3, wherein the composition includes the black pigment of 3 to
A material containing ten times as much titanium oxide is used.

【０００８】さらに、請求項５に記載の発明にかかる押
釦スイッチ用カバー部材の製造方法は、キートップ部材
を透光性の樹脂あるいはゴム組成物で成形し、該キート
ップ部材の外表面に文字、記号あるいは図形の表示部を
形成するとともに、該キートップ部材を固着可能な少な
くとも１つの取付部と少なくとも１つのキートップ部と
がそれぞれ薄肉のスカート部を介してベース部に連続す
る基体を透光性のゴム組成物で成形し、前記表示部が形
成されたキートップ部材を前記基体の取付部に接着固定
してマスキング治具で被覆し、前記基体の表面全面に遮
光性着色層を形成し、前記キートップ部天面上の遮光性
着色層をレーザー光の照射で文字、記号あるいは図形状
に除去して表示部を形成する。According to a fifth aspect of the present invention, there is provided a method for manufacturing a cover member for a push button switch, wherein the key top member is formed of a translucent resin or rubber composition, and a character is formed on an outer surface of the key top member. , A symbol or a graphic display part, and at least one attachment part to which the key top member can be fixed and at least one key top part are respectively transparent through a base member connected to the base part through a thin skirt part. Molded with a light rubber composition, the key top member on which the display section is formed is adhered and fixed to the mounting portion of the base, covered with a masking jig, and a light-shielding colored layer is formed on the entire surface of the base. Then, the light-shielding colored layer on the top surface of the key top portion is removed into a character, a symbol, or a figure by irradiating a laser beam to form a display portion.

【０００９】押釦スイッチは、回路基板とカバー部材等
を主要な要素として構成され、設けられる機器、例え
ば、携帯電話機やキーボード等のケーシング内に収容さ
れる。回路基板には、固定接点や周知の回路素子やＬＥ
Ｄ等の発光体等が設けられる。ケーシングは、データ入
力用のキー（キートップ）と同数の穴を有するもの等が
用いられ、これらの穴にキートップが突出する。[0009] The push-button switch is mainly composed of a circuit board and a cover member, and is housed in equipment provided therein, for example, a casing of a cellular phone, a keyboard or the like. On the circuit board, fixed contacts, well-known circuit elements, LE
A luminous body such as D is provided. As the casing, one having the same number of holes as data input keys (key tops) is used, and the key tops project into these holes.

【００１０】基体は、支承部に連続して取付部とキート
ップ部を変位可能に備え、これら取付部とキートップ部
の合計がキートップの数と等しい。この基体は、直接、
あるいは、皿バネ的な弾性変形特性を有するドーム部が
形成されたクリック板を介して回路基板に組み付けら
れ、クリック板を介して回路基板に組み付けられる場合
はキートップ部（取付部）の裏面に押圧部が一体に、ま
た、回路基板に直接に組み付けられる場合は回路基板の
固定接点と接触可能な可動接点が導電性ゴム等で形成さ
れる。この基体は、支承部が回路基板への支持部として
機能し、キートップ部をキートップとして（必要に応じ
て、透明硬質樹脂等のキートップを重ねて設けて）用
い、また、取付部にキートップ部材が設けられる。[0010] The base body is provided with a mounting portion and a key top portion so as to be displaceable continuously from the support portion, and the total of the mounting portion and the key top portion is equal to the number of key tops. This substrate is directly
Alternatively, it is attached to the circuit board via a click plate having a dome portion having a conical spring-like elastic deformation characteristic, and is attached to the back surface of the key top portion (attachment portion) when attached to the circuit board via the click plate. In the case where the pressing portion is integrally and directly assembled to the circuit board, the movable contact that can contact the fixed contact of the circuit board is formed of conductive rubber or the like. In this base, the support part functions as a support part for the circuit board, the key top part is used as a key top (if necessary, a key top made of transparent hard resin or the like is provided in an overlapping manner), and the mounting part is used. A key top member is provided.

【００１１】キートップ部材は、透光性の熱硬化性樹脂
や熱可塑性樹脂、あるいは、ゴム弾性体等、望ましく
は、基体と同一の材料を用い、射出成形等で成形され、
基体にインサート成形や接着剤等で固着される。このキ
ートップ部材は、基体への固着前に遮光性第１着色層や
透光性着色層が（請求項１，２）、あるいは、表示部が
形成される（請求項５）。The key top member is formed by injection molding or the like, preferably using the same material as the base, such as a translucent thermosetting resin, a thermoplastic resin, or a rubber elastic body.
It is fixed to the base by insert molding or an adhesive. In this key top member, a light-shielding first colored layer or a light-transmitting colored layer (claims 1 and 2) or a display section is formed (claim 5) before being fixed to the base.

【００１２】基体は、ウレタンゴム、アクリルゴム、ブ
チルゴム、シリコーンゴム、イソプレンゴム、エチレン
−プロピレン−ジエン三元共重合体（ＥＰＤＭ）等の合
成ゴムや天然ゴム、熱硬化性エラストマ、ポリエステル
系若しくはウレタン系の熱可塑性エラストマ等の透光性
のゴム弾性体（組成物）を用いて、圧縮成形や射出成形
等で単独に、あるいは、キートップ部材をインサートと
するインサート成形等により成形される。この基体は、
取付部にキートップ部材が固着された後に、該キートッ
プ部材をマスキング治具により被覆し、必要に応じて少
なくともキートップ部天面部分に透光性着色層が、ま
た、全面に遮光性第２着色層が形成される。The base is made of synthetic rubber such as urethane rubber, acrylic rubber, butyl rubber, silicone rubber, isoprene rubber, ethylene-propylene-diene terpolymer (EPDM), natural rubber, thermosetting elastomer, polyester or urethane. Using a translucent rubber elastic body (composition) such as a thermoplastic elastomer or the like, it is molded alone by compression molding, injection molding, or the like, or by insert molding using a key top member as an insert. This substrate is
After the key top member is fixed to the mounting portion, the key top member is covered with a masking jig, and a translucent coloring layer is formed on at least the top surface of the key top portion as needed, and a light-shielding layer is formed on the entire surface. Two colored layers are formed.

【００１３】透光性着色層は周知の透光性インクや塗料
等を用いて塗装や印刷等で形成され、特に、基体の透光
性着色層はキートップ部材を基体に固着した後にキート
ップ部材をマスキング治具で被覆して形成する。また、
遮光性第１着色層はキートップ部材を基体へ固着する前
に印刷や塗装等で形成され、遮光性第２着色層はキート
ップ部材を基体に固着した後にキートップ部材をマスキ
ング治具で被覆して印刷や塗装で形成する。マスキング
治具は、樹脂等をキートップ部材に合わせて成形してな
り、キートップ部材の少なくとも天面を被覆するもの、
望ましくは、キートップ部材と嵌合して天面のみならず
外周面も被覆するキャップ状のものを用いる。The light-transmitting colored layer is formed by painting or printing using a well-known light-transmitting ink, paint, or the like. The member is formed by covering with a masking jig. Also,
The light-shielding first colored layer is formed by printing or painting before fixing the keytop member to the base, and the light-shielding second colored layer is coated with the masking jig after fixing the keytop member to the base. And formed by printing or painting. A masking jig is formed by molding a resin or the like according to the key top member, and covers at least a top surface of the key top member,
Desirably, a cap-shaped member that fits with the key top member and covers not only the top surface but also the outer peripheral surface is used.

【００１４】遮光性着色層（第１着色層および第２着色
層を含む）の形成には、電磁波吸収性に優れた黒色顔料
や有彩色顔料を配合して異なる色彩に調整された遮光性
の塗料やインク等（組成物）、望ましくは、主剤となる
樹脂バインダ１００重量部に対して黒色顔料を０．０３
〜１．５０重量部と有彩色顔料を８〜２０重量部含有す
るもの、より望ましくは、有彩色顔料に白色顔料を黒色
顔料の３〜１０倍さらに配合して調色された塗料等が用
いられる。The formation of the light-shielding colored layer (including the first colored layer and the second colored layer) is performed by mixing a black pigment or a chromatic pigment excellent in electromagnetic wave absorption and adjusting the light-shielding properties to different colors. A black pigment is added in an amount of 0.03 to 100 parts by weight of a resin binder serving as a base material, preferably a paint or an ink (composition).
１．５1.50 parts by weight and a chromatic pigment in an amount of 8 to 20 parts by weight, more preferably, a chromatic pigment and a white pigment are mixed with a black pigment by a factor of 3 to 10 times that of a black pigment. Can be

【００１５】黒色顔料は、カーボンブラック等に代表さ
れるもの、望ましくは、平均粒径がレーザー光の波長の
１／２以下のものが用いられる。有彩色顔料は無機系有
機系を問わず用いることができるが、望ましくは、耐熱
性に優れた無機系顔料を用いる。白色顔料は、二酸化チ
タンで代表されるが、その他、酸化亜鉛や鉛白等を用い
ることができ、望ましくは、平均粒径がレーザー光の波
長以下のものを用いる。As the black pigment, those represented by carbon black or the like, preferably those having an average particle diameter of 1/2 or less of the wavelength of the laser beam are used. As the chromatic pigment, any inorganic or organic pigment can be used, but preferably an inorganic pigment having excellent heat resistance is used. The white pigment is represented by titanium dioxide, but zinc oxide, lead white, or the like can be used. Preferably, the white pigment has an average particle diameter equal to or smaller than the wavelength of the laser beam.

【００１６】基体のキートップ部の表示部はキートップ
部材を固着した後に遮光性第２着色層に対しレーザー光
を照射して形成する。また、キートップ部材の表示部
は、基体の取付部への固着の前においては印刷やレーザ
ー光の照射等の種々の方法で、基体への固着後において
は遮光性第２着色層と同様に遮光性第１着色層に対しレ
ーザー光を照射して形成する。レーザーは、周知のエキ
シマ、ＹＡＧあるいはアルゴンガス等の周知のものが挙
げられ、そのエネルギも適宜選択される。このレーザー
は、マスクを用いてレーザー光を照射し、あるいは、レ
ーザー光を発光する照射器を走査し、レーザー光により
遮光性着色層を文字等の形状に除去して表示部を形成す
る。The display portion of the key top portion of the base is formed by irradiating the light shielding second colored layer with laser light after fixing the key top member. In addition, the display portion of the key top member is formed by various methods such as printing or laser light irradiation before fixing to the mounting portion of the base, and after fixing to the base, similarly to the light-shielding second colored layer. The light-shielding first colored layer is formed by irradiating a laser beam. As the laser, a well-known laser such as a well-known excimer, YAG, or argon gas may be used, and the energy may be appropriately selected. This laser irradiates laser light using a mask, or scans an irradiator that emits laser light, and removes the light-shielding colored layer into a character or the like shape with the laser light to form a display portion.

【００１７】[0017]

【作用】請求項１，２に記載の発明は、遮光性第１着色
層が形成されたキートップ部材を基体の取付部に固着し
てマスキング治具により被覆した後、キートップ部材の
遮光性第１着色層と異なる色彩の遮光性第２着色層を形
成し、これらキートップ部材の遮光性第１着色層とキー
トップ部の遮光性第２着色層にレーザー光を照射して表
示部を形成する。このため、キートップ部とキートップ
部材を異なる色彩に形成でき、配色等に大きな自由度が
得られ、デザイン的に優れたカバー部材が達成される。According to the first and second aspects of the present invention, the key top member on which the light-shielding first colored layer is formed is fixed to the mounting portion of the base and covered with a masking jig, and then the light-shielding property of the key top member is reduced. A light-shielding second colored layer having a color different from that of the first colored layer is formed, and the light-shielding first colored layer of the keytop member and the light-shielding second colored layer of the keytop portion are irradiated with laser light to illuminate the display section. Form. For this reason, the key-top portion and the key-top member can be formed in different colors, a large degree of freedom can be obtained in color arrangement and the like, and a cover member excellent in design is achieved.

【００１８】また、請求項５に記載の発明は、透光性の
キートップ部材に表示部を印刷やレーザー光の照射等の
周知の方法で予め形成し、このキートップ部材を基体の
取付部に固着してマスキング治具により被覆して基体に
キートップ部材の表示部および外観の色彩と異なる色彩
の遮光性着色層を形成した後、基体のキートップ部天面
の遮光性着色層にレーザー光を照射して表示部を形成す
るため、上述した請求項１，２の発明と同様に、キート
ップ部材とキートップ部を異なる色彩にでき、デザイン
的に優れたカバー部材が得られる。According to a fifth aspect of the present invention, a display portion is previously formed on a translucent key top member by a known method such as printing or laser irradiation, and the key top member is attached to a base mounting portion. After forming a light-shielding colored layer having a color different from that of the display and appearance of the key-top member on the substrate by covering with a masking jig and applying a laser to the light-shielding colored layer on the top surface of the key-top portion of the substrate. Since the display portion is formed by irradiating light, the key top member and the key top portion can be made different colors as in the first and second aspects of the invention, and a cover member excellent in design can be obtained.

【００１９】[0019]

【実施の形態】以下、この発明の実施の形態を図面を参
照して説明する。図１から図９はこの発明の一の実施の
形態にかかる押釦スイッチ用カバー部材の製造方法を説
明する図であり、図１が完成状態のカバー部材を表し、
図２から図９が同カバー部材の各製造工程における中間
製作物を図番順に示す模式図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 are views for explaining a method of manufacturing a cover member for a push button switch according to one embodiment of the present invention, wherein FIG. 1 shows a cover member in a completed state,
2 to 9 are schematic diagrams showing intermediate products in the respective manufacturing steps of the cover member in the order of the figure numbers.

【００２０】先ず、図１ａ，ｂ，ｃを参照して完成した
照光式の押釦スイッチ用カバー部材を説明する。図中、
１は携帯電話機の入力装置に用いるカバー部材を示し、
カバー部材１は基体１０とキートップ部材２０を主要な
要素として構成され、数字キー（０〜９，＃，＊）と各
種のファンクションキー（Ｆ）を有する。後述するが、
このカバー部材１は、１つのファンクションキーがキー
トップ部材２０から構成され、他のキーが基体１０と一
体のキートップ部から構成される。First, a completed cover member for an illuminated push button switch will be described with reference to FIGS. 1A, 1B and 1C. In the figure,
Reference numeral 1 denotes a cover member used for an input device of a mobile phone,
The cover member 1 includes a base 10 and a key top member 20 as main elements, and has numeric keys (0 to 9, #, *) and various function keys (F). As will be described later,
In this cover member 1, one function key is configured by a key top member 20, and the other key is configured by a key top portion integrated with the base 10.

【００２１】なお、図示を割愛するが、このカバー部材
１は、ドーム部が形成されたクリック板等を介して回路
基板に組み付けられて押釦スイッチを構成する。クリッ
ク板には皿バネ的な弾性変形特性を有するドーム部がキ
ーに対応して形成され、このドーム部に可動接点が設け
られ、また、回路基板には可動接点が接触可能な固定接
点と表示部を照光可能なＬＥＤ等の発光体とが設けら
れ、キーの押圧操作でクリック板のドームが変形して可
動接点が回路基板の固定接点と接触、すなわち、回路を
開閉する。Although not shown, the cover member 1 is assembled to a circuit board via a click plate or the like having a dome portion to form a push button switch. The click plate is formed with a dome part having a disc spring-like elastic deformation characteristic corresponding to the key, and the dome part is provided with a movable contact, and the circuit board is displayed as a fixed contact to which the movable contact can contact. A luminous body such as an LED that can illuminate the portion is provided, and the dome of the click plate is deformed by pressing a key, and the movable contact contacts the fixed contact on the circuit board, that is, opens and closes the circuit.

【００２２】基体１０は、図３に示すように、透明シリ
コーンゴム組成物等を用いた射出成形や圧縮成形等で一
体成形され、回路基板への支承部であるベース部１１に
複数（図示では２０個）のキートップ部１２と１つの取
付部１３がそれぞれ薄肉部１４を介して連続する。この
基体１０には、取付部１３にキートップ部材２０が透明
接着剤等（図示せず）で固着され、また、取付部１３を
除く表面全面に透光性白色層１５が、特定のキーに対応
するキートップ部１２天面に透光性白色層１５に重ねて
透光性有彩色層１６が、透光性白色層１５と透光性有彩
色層１６に重ねて表面全面に遮光性着色層（遮光性第２
着色層）１８が形成される。なお、９１はキートップ部
１２や取付部１３の裏面に一体に突出する押圧部、９２
は取付穴であり、押圧部９１はクリック板のドーム部を
押圧する。As shown in FIG. 3, the base 10 is integrally formed by injection molding or compression molding using a transparent silicone rubber composition or the like, and a plurality of bases 11 (shown in FIG. (20 pieces) of key top portions 12 and one attachment portion 13 are continuous with each other via a thin portion 14. On the base 10, a key top member 20 is fixed to a mounting portion 13 with a transparent adhesive or the like (not shown), and a translucent white layer 15 is provided on the entire surface except the mounting portion 13 for a specific key. The translucent chromatic layer 16 is superimposed on the translucent white layer 15 on the top surface of the corresponding key top portion 12, and the entire surface is light-shielded and colored over the translucent white layer 15 and the translucent chromatic layer 16. Layer (light-shielding second
A colored layer 18 is formed. Reference numeral 91 denotes a pressing portion integrally protruding from the back surface of the key top portion 12 or the mounting portion 13.
Is a mounting hole, and the pressing portion 91 presses the dome portion of the click plate.

【００２３】透光性白色層１５は白色顔料が添加された
透光性塗料等を用いスプレー塗装等で５〜１２０μｍの
厚みに形成され、同様に、透光性有彩色層１６は有彩色
顔料が添加された透光性インク等を用いてスクリーン印
刷等で５〜１２０μｍの厚みに形成される。白色顔料は
亜鉛華や酸化チタン等が用いられ、また、有彩色顔料は
無機あるいは有機の周知のものを用いられるが、望まし
くは、耐熱性に優れたものを用いる。The translucent white layer 15 is formed to a thickness of 5 to 120 μm by spray coating using a translucent paint or the like to which a white pigment is added. Similarly, the translucent chromatic color layer 16 is formed of a chromatic pigment. Is formed to a thickness of 5 to 120 μm by screen printing or the like using a translucent ink or the like to which is added. As the white pigment, zinc white or titanium oxide is used, and as the chromatic pigment, a known inorganic or organic pigment is used. Preferably, a pigment having excellent heat resistance is used.

【００２４】遮光性着色層１８は、遮光性の塗料を用い
てスプレー塗装等で５〜１２０μｍの厚みに形成され
る。この塗料は、主剤となるバインダ樹脂１００重量部
に対してカーボンブラック（黒色顔料）を０．０３〜
１．５０重量部と有彩色顔料を８〜２０重量部添加、若
しくは、有彩色顔料に酸化チタン（白色顔料）をカーボ
ンブラックの３〜１０倍程度さらに添加して調色したも
のが用いられる。そして、キートップ部１２天面上の遮
光性着色層１８には文字等の形状の抜き穴からなる表示
部１８ａが形成され、この表示部１８ａに透光性白色層
１５や透光性着色層１７が露呈する。後述するように、
この表示部１８ａは、レーザー光の照射により形成され
る。The light-shielding colored layer 18 is formed to a thickness of 5 to 120 μm by using a light-shielding paint by spray coating or the like. This paint contains carbon black (black pigment) in an amount of 0.03 to 100 parts by weight of a binder resin as a base material.
1.50 parts by weight and 8 to 20 parts by weight of a chromatic color pigment are added, or the chromatic color pigment is added with titanium oxide (white pigment) about 3 to 10 times as much as carbon black and toned. The light-shielding colored layer 18 on the top surface of the key top portion 12 is provided with a display portion 18a formed of a hole such as a character, and the display portion 18a is provided with a translucent white layer 15 or a translucent colored layer. 17 are exposed. As described below,
The display 18a is formed by irradiating a laser beam.

【００２５】キートップ部材２０は、例えば、図２に示
すように、略三角柱形状であって、基体１０と同一のシ
リコーンゴム組成物あるいは樹脂組成物等を用い射出成
形等で成形される。このキートップ部材２０は、天面に
透光性着色層２１が、また、天面と周面に透光性着色層
２１に重ねて上述の遮光性着色層１８と異なる色彩の遮
光性着色層（遮光性第１着色層）２２が形成され、天面
上の遮光性着色層２２に文字等の形状を有する抜き穴状
の表示部２２ａが透光性着色層２１を露呈させて形成さ
れる。The key top member 20 has, for example, a substantially triangular prism shape as shown in FIG. 2, and is formed by injection molding or the like using the same silicone rubber composition or resin composition as the base 10. The key top member 20 includes a light-transmitting colored layer 21 on the top surface and a light-shielding colored layer different in color from the light-shielding colored layer 18 on the light-transmitting colored layer 21 on the top surface and the peripheral surface. A (light-shielding first colored layer) 22 is formed, and a hole-shaped display portion 22 a having a shape such as a character is formed on the light-shielding colored layer 22 on the top surface by exposing the light-transmitting colored layer 21. .

【００２６】透光性着色層２１は、上述した基体１０の
透光性着色層１６と同様の透光性インク等を用いてスク
リーン印刷等で形成される。遮光性着色層２２も、基体
１０の遮光性着色層１８と同様の塗料等を用いてスプレ
ー塗装等で形成される。なお、遮光性着色層１８，２２
の一方はカーボンが８〜２０重量部程度添加された通常
の塗料等を用いて黒色あるいは灰色等の無彩色に形成す
ることも可能である。The translucent coloring layer 21 is formed by screen printing or the like using the same translucent ink or the like as the translucent coloring layer 16 of the base 10 described above. The light-shielding colored layer 22 is also formed by spray coating or the like using the same paint or the like as the light-shielding colored layer 18 of the base 10. The light-shielding colored layers 18 and 22
One of them can be formed into an achromatic color such as black or gray using a usual paint or the like to which about 8 to 20 parts by weight of carbon is added.

【００２７】次に、カバー部材１の製造方法を説明す
る。この実施の形態にあっては、先ず、基体１０をシリ
コーンゴム組成物等を用いて射出成形等で成形し、ま
た、キートップ部材２０をシリコーンゴム組成物等を用
いて射出成形等で成形する。前述したように、基体１０
はベース部１１に複数のキートップ部１２と１つの取付
部１３が薄肉部１４を介して連続する略板形状を有し
（図３参照）、キートップ部材２０は略三角柱形状を有
する。Next, a method of manufacturing the cover member 1 will be described. In this embodiment, first, the base 10 is molded by injection molding or the like using a silicone rubber composition or the like, and the key top member 20 is molded by injection molding or the like using a silicone rubber composition or the like. . As described above, the base 10
The key top member 20 has a substantially plate shape in which a plurality of key top portions 12 and one mounting portion 13 are continuous via a thin portion 14 on a base portion 11 (see FIG. 3), and the key top member 20 has a substantially triangular prism shape.

【００２８】そして、キートップ部材２０には一方の端
面（天面となる面）全面に有色透明の透光性着色層２１
をスクリーン印刷等により形成し、この後、透光性着色
層２１上および周面全面にスプレー塗装等で遮光性着色
層２２を形成する（図２参照）。なお、キートップ部材
２０には、基体１０と同様に透光性白色層を全面に形成
した後に、透光性着色層２１や遮光性着色層２２を形成
することも可能である。The key top member 20 has a transparent and colored translucent colored layer 21 on one end face (top face).
Is formed by screen printing or the like, and thereafter, the light-shielding colored layer 22 is formed on the light-transmitting colored layer 21 and the entire peripheral surface by spray coating or the like (see FIG. 2). It is also possible to form a translucent colored layer 21 and a light-shielding colored layer 22 on the key top member 20 after forming a translucent white layer on the entire surface in the same manner as the base 10.

【００２９】次いで、図４ａに示すように、基体１０の
取付部１３に透明接着剤（図示せず）を用いてキートッ
プ部材２０を接着する。この後、図５ａに示すように、
基体１０の取付部１３に接着されたキートップ部材２０
にマスキング治具Ｊを嵌着させる。このマスキング治具
Ｊは、樹脂や金属からなる有底円筒状の部材であって、
キートップ部材２０に着脱自在に嵌着する。なお、述べ
るまでもないが、マスキング治具Ｊの形状はキートップ
部材２０の形状等の被覆する部分に応じて適宜選択さ
れ、周知のマスキングテープ等を用いることも可能であ
る。Next, as shown in FIG. 4A, the key top member 20 is bonded to the mounting portion 13 of the base 10 using a transparent adhesive (not shown). After this, as shown in FIG.
Key top member 20 adhered to mounting portion 13 of base 10
Then, a masking jig J is fitted. This masking jig J is a cylindrical member with a bottom made of resin or metal,
The key top member 20 is detachably fitted. Needless to say, the shape of the masking jig J is appropriately selected according to the portion to be covered, such as the shape of the key top member 20, and a well-known masking tape or the like can be used.

【００３０】そして、この状態で、図６に示すように、
スプレー塗装機（ガン）等を用いて基体１０の表面全面
に透光性白色層１５を形成する。次いで、この基体１０
を位置決め治具等により定位置に固定し、図７ａに示す
ように、基体１０の２つのキートップ部１２の天面にそ
れぞれ透光性白色層１５に重ねてスクリーン印刷機等に
より有彩色の透光性着色層１６を異なる色彩で形成す
る。Then, in this state, as shown in FIG.
The translucent white layer 15 is formed on the entire surface of the substrate 10 using a spray coater (gun) or the like. Next, the substrate 10
Is fixed to a fixed position by a positioning jig or the like, and as shown in FIG. 7A, a chromatic color The translucent colored layer 16 is formed in a different color.

【００３１】次に、図８に示すように、基体１０の表面
全面に透光性白色層１５および透光性着色層１６に重ね
てキートップ部材２０の遮光性着色層２２と異なる色彩
の遮光性着色層１８をスプレー塗装等により形成し、乾
燥後に、キートップ部材２０からマスキング治具Ｊを取
り外す（図９参照）。そして、この基体１０を位置決め
治具等により定位置に保持し、ＹＡＧレーザーを用いて
キートップ部１２天面およびキートップ部材２０天面に
レーザー光を照射し、キートップ部１２天面の遮光性着
色層１８およびキートップ部材２０天面の遮光性着色層
２２を文字等の形状に除去して表示部１８ａと表示部２
２ａを形成する（図１参照）。Next, as shown in FIG. 8, light-shielding of a color different from that of the light-shielding colored layer 22 of the key-top member 20 is superimposed on the light-transmitting white layer 15 and the light-transmitting colored layer 16 over the entire surface of the base 10. The coloring layer 18 is formed by spray coating or the like, and after drying, the masking jig J is removed from the key top member 20 (see FIG. 9). Then, the base 10 is held at a fixed position by a positioning jig or the like, and a laser beam is applied to the top surface of the key top portion 12 and the top surface of the key top member 20 by using a YAG laser, thereby shielding the top surface of the key top portion 12 from light. The colorable layer 18 and the light-shielding color layer 22 on the top surface of the key top member 20 are removed into a shape such as a character so that the display portions 18a and 2
2a is formed (see FIG. 1).

【００３２】以上でカバー部材１が完成し、このカバー
部材１をクリック板等を介し回路基板に組み付け携帯電
話機等のケーシング内に収容して押釦スイッチが構成さ
れる。この押釦スイッチは、携帯電話機等のケーシング
からキートップ部１２とキートップ部材２０が外部に突
出して露呈する。なお、上述したカバー部材１には、表
示部１８ａ，２２ａを形成した後に、キートップ部１２
天面やキートップ部材２０天面に透明な樹脂板等を透明
接着剤で貼合、あるいは、透明インクを塗布して耐摩耗
性を改善することは任意に行える。The cover member 1 is completed as described above, and the cover member 1 is assembled to a circuit board via a click plate or the like, and is housed in a casing of a portable telephone or the like to constitute a push button switch. In this push button switch, the key top portion 12 and the key top member 20 project from a casing of a mobile phone or the like to the outside and are exposed. Note that, after the display portions 18a and 22a are formed on the cover member 1, the key top portion 12 is formed.
It is possible to arbitrarily improve the abrasion resistance by bonding a transparent resin plate or the like to the top surface or the top surface of the key top member 20 with a transparent adhesive, or applying a transparent ink.

【００３３】上述したように、この実施の形態にあって
は、携帯電話機のケーシングに収容した時にケーシング
外へ突出するキートップ部１２とキートップ部材２０を
異なる色彩に構成できるため、配色等に大きな自由度が
得られ、意匠的に優れた押釦スイッチが得られ、また、
表示部１８ａ，２２ａのレーザー加工性が損なわれるこ
ともなく、視認性に優れた表示部１８ａ，２２ａが得ら
れ、生産性の低下も防止できる。As described above, in this embodiment, the key top portion 12 and the key top member 20 that protrude outside the casing when housed in the casing of the portable telephone can be configured in different colors. A large degree of freedom is obtained, and a push button switch excellent in design is obtained.
The display portions 18a and 22a having excellent visibility can be obtained without impairing the laser processability of the display portions 18a and 22a, and a decrease in productivity can be prevented.

【００３４】図１０から図１５は、この発明の他の実施
の形態にかかるカバー部材の製造方法を説明し、その製
造工程の概要を図番順に示す模式図である。なお、この
実施の形態においては、上述した実施の形態と同一の部
分には同一の番号を付して説明を省略する。FIGS. 10 to 15 are schematic views illustrating a method of manufacturing a cover member according to another embodiment of the present invention, and showing an outline of the manufacturing process in the order of the figure numbers. Note that, in this embodiment, the same portions as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

【００３５】この実施の形態にあっては、図１０に示す
ように、先ず、有色透明（着色透光性）のキートップ部
材２０を着色透光性樹脂により成形し、キートップ部材
２０の一方の端面（基体１０への固着面）に文字等の形
状の抜き穴からなる表示部２９ａが形成された遮光性着
色層２９を形成する。この遮光性着色層２９は、遮光性
インクを用いたスクリーン印刷等で表示部２９ａを抜き
印刷することで、あるいは、前述した実施の形態と同様
に、キートップ部材２０端面全面にスプレー塗装等で形
成され、後に、表示部２９ａがレーザー光の照射等で形
成される。In this embodiment, as shown in FIG. 10, first, a colored and transparent (colored translucent) key top member 20 is molded from a colored translucent resin. A light-shielding colored layer 29 having a display portion 29a formed of a hole having a shape such as a character is formed on the end surface (the surface fixed to the substrate 10). The light-shielding colored layer 29 is formed by removing and printing the display portion 29a by screen printing or the like using light-shielding ink, or by spray coating or the like on the entire end face of the key top member 20 as in the above-described embodiment. After that, the display portion 29a is formed by laser light irradiation or the like.

【００３６】次に、図１１ａに示すように、キートップ
部材２０を基体１０の取付部１３に遮光性着色層２９形
成面を透光性接着剤（図示せず）で接着して設ける。そ
して、図１２ａに示すように、基体１０の取付部１３に
固着されたキートップ部材２０にマスキング治具Ｊを嵌
着し、キートップ部材２０の天面および外周面をマスキ
ング治具Ｊにより被覆する。Next, as shown in FIG. 11A, the key top member 20 is provided on the mounting portion 13 of the base 10 by bonding the surface on which the light-shielding colored layer 29 is formed with a translucent adhesive (not shown). Then, as shown in FIG. 12A, the masking jig J is fitted to the keytop member 20 fixed to the mounting portion 13 of the base body 10, and the top surface and the outer peripheral surface of the keytop member 20 are covered with the masking jig J. I do.

【００３７】そして、図１３ｂに示すように、キートッ
プ部材２０がマスキング治具Ｊにより被覆された状態
で、基体１０のキートップ部１２天面に透光性着色層１
６を形成する。この後、図１４に示すように、基体１０
の表面全面にキートップ部材２０と異なる色彩の透光性
着色層１６に重ねて遮光性着色層１８をスプレー塗装等
で形成する。前述した実施の形態と同様に、この遮光性
着色層１８の形成には、主剤となるバインダ樹脂１００
重量部に対してカーボンを０．０３〜１．５０重量部と
調色のために白色顔料となる酸化チタン等をカーボンの
３〜１０倍程度添加した有彩色の顔料を８〜２０重量
部、さらに必要に応じて酸化チタン等の白色顔料をカー
ボンの３〜１０倍添加した塗料、あるいは、バインダ樹
脂１００重量部に対してカーボンを２０重量部程度添加
した塗料を用いる。Then, as shown in FIG. 13B, with the key top member 20 covered with the masking jig J, the translucent colored layer 1 is formed on the top surface of the key top portion 12 of the base 10.
6 is formed. Thereafter, as shown in FIG.
A light-shielding colored layer 18 is formed by spray coating or the like on the light-transmitting colored layer 16 having a color different from that of the key top member 20 over the entire surface of the light-emitting device. Similarly to the above-described embodiment, the formation of the light-shielding colored layer 18 is performed by using the binder resin 100 as a main agent.
8 to 20 parts by weight of a chromatic pigment obtained by adding about 0.03 to 1.50 parts by weight of carbon and about 3 to 10 times as much carbon as titanium oxide which is a white pigment for toning, Further, as required, a paint in which a white pigment such as titanium oxide is added 3 to 10 times the amount of carbon, or a paint in which about 20 parts by weight of carbon is added to 100 parts by weight of a binder resin is used.

【００３８】次いで、図１５に示すように、キートップ
部材２０からマスキング治具Ｊを取り外し、基体１０を
位置決め治具等により定位置に固定し、基体１０のキー
トップ部１２天面にＹＡＧレーザーを用いてレーザー光
を照射し、キートップ部１２天面上の遮光性着色層１８
を文字等の形状に除去して表示部１８ａを形成する。そ
して、この後、必要に応じてキートップ部１２の天面に
透明な硬質樹脂板等を透明接着剤で固着、あるいは、透
明インクを塗布してカバー部材１が完成する。Next, as shown in FIG. 15, the masking jig J is removed from the key top member 20 and the base 10 is fixed at a fixed position with a positioning jig or the like. Is irradiated with a laser beam using a light-shielding colored layer 18 on the top surface of the key top portion 12.
Is removed into a shape such as a character to form the display portion 18a. Then, if necessary, a transparent hard resin plate or the like is fixed to the top surface of the key top portion 12 with a transparent adhesive, or a transparent ink is applied to complete the cover member 1.

【００３９】[0039]

【発明の効果】以上説明したように、請求項１，２に記
載の発明によれば、レーザー加工が可能な遮光性着色層
が形成されたキートップ部材を成形するとともに、取付
部とキートップ部を有する基体を成形してキートップ部
材を基体の取付部に固着し、基体に取り付けられたキー
トップ部材をマスキング治具により被覆して基体の表面
にキートップ部材の遮光性着色層と異なるレーザー加工
が可能な遮光性着色層（さらに、透光性着色層）を形成
し、この後に、マスキング治具を取り外してキートップ
部材の遮光性着色層とキートップ部の遮光性着色層にレ
ーザー加工で表示部を形成するため、意匠的に優れ、か
つ、表示部の視認性に優れたカバー部材が容易に成形で
きる。As described above, according to the first and second aspects of the present invention, a key top member having a light-shielding colored layer capable of being laser-processed is formed, and a mounting portion and a key top are formed. Forming a base having a portion, fixing the key top member to the mounting portion of the base, covering the key top member attached to the base with a masking jig, and different from the light-shielding colored layer of the key top member on the surface of the base A light-shielding colored layer (and a light-transmitting colored layer) that can be laser-processed is formed. After that, the masking jig is removed and a laser is applied to the light-shielding colored layer of the key-top member and the light-shielding colored layer of the key-top portion. Since the display portion is formed by processing, a cover member excellent in design and excellent in visibility of the display portion can be easily formed.

【００４０】また、請求項５に記載の発明によれば、表
示部が形成されたキートップ部材を予め成形し、このキ
ートップ部材を基体の取付部に固着してマスキング治具
により被覆し、この状態で、基体の表面にキートップ部
材と色彩が異なるレーザー加工が可能な遮光性着色層を
形成し、基体のキートップ部天面上の遮光性着色層にレ
ーザー加工を施して表示部を形成するため、請求項１，
２に記載の発明と同様に、意匠的に優れ、かつ、表示部
の視認性に優れたカバー部材が容易に成形できる。According to the fifth aspect of the present invention, a key top member on which a display portion is formed is formed in advance, and the key top member is fixed to a mounting portion of a base and covered with a masking jig. In this state, a light-shielding colored layer that can be laser-processed with a different color from the keytop member is formed on the surface of the base, and the light-shielding colored layer on the top surface of the keytop portion of the base is laser-processed to form the display unit. Claim 1 to form
Similarly to the invention described in 2 above, a cover member excellent in design and excellent in visibility of the display portion can be easily formed.

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

【図１】この発明の一の実施の形態にかかる製造方法に
より製造された照光式押釦スイッチ用カバー部材を示
し、ａが平面図、ｂがａのＡ−Ａ矢視断面図、ｃがａの
Ｂ−Ｂ矢視断面図である。FIG. 1 shows a cover member for an illuminated push button switch manufactured by a manufacturing method according to an embodiment of the present invention, wherein a is a plan view, b is a cross-sectional view taken along the line AA of a, and c is a FIG. 3 is a sectional view taken along the line BB in FIG.

【図２】同照光式押釦スイッチ用カバー部材の製造に用
いるキートップ部材の一例を示し、ａが平面図、ｂが縦
断面図である。FIG. 2 shows an example of a key top member used for manufacturing the illuminated push button switch cover member, wherein a is a plan view and b is a longitudinal sectional view.

【図３】同照光式押釦スイッチ用カバー部材の製造に用
いる基体を示し、ａが平面図、ｂが図１ａのＡ−Ａ矢視
相当断面図、ｃが図１ａのＢ−Ｂ矢視相当断面図であ
る。3A and 3B show a base used for manufacturing the cover member for the illuminated push button switch, wherein a is a plan view, b is a cross-sectional view taken along the line AA of FIG. 1a, and c is a view taken along the line BB of FIG. 1a. It is sectional drawing.

【図４】同製造方法による一の製造工程の概要を示し、
ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａのＢ−
Ｂ矢視相当断面図である。FIG. 4 shows an outline of one manufacturing process according to the manufacturing method,
1A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG.
It is sectional drawing equivalent to the arrow B.

【図５】図４の製造工程に続く製造工程の概要を示し、
ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａのＢ−
Ｂ矢視相当断面図である。5 shows an outline of a manufacturing process following the manufacturing process of FIG. 4,
1A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG.
It is sectional drawing equivalent to the arrow B.

【図６】図５の製造工程に続く製造工程の概要を示し、
ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａのＢ−
Ｂ矢視相当断面図である。6 shows an outline of a manufacturing process following the manufacturing process of FIG. 5,
1A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG.
It is sectional drawing equivalent to the arrow B.

【図７】図６の製造工程に続く製造工程の概要を示し、
ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａのＢ−
Ｂ矢視相当断面図である。7 shows an outline of a manufacturing process following the manufacturing process of FIG. 6,
1A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG.
It is sectional drawing equivalent to the arrow B.

【図８】図７の製造工程に続く製造工程の概要を示し、
ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａのＢ−
Ｂ矢視相当断面図である。8 shows an outline of a manufacturing process following the manufacturing process of FIG. 7,
1A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG.
It is sectional drawing equivalent to the arrow B.

【図９】図８の製造工程に続く製造工程の概要を示し、
ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａのＢ−
Ｂ矢視相当断面図である。9 shows an outline of a manufacturing process following the manufacturing process of FIG. 8,
1A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG.
It is sectional drawing equivalent to the arrow B.

【図１０】この発明の他の実施の形態にかかる製造方法
に用いるキートップ部材を示し、ａが平面図、ｂが縦断
面図である。FIG. 10 shows a key top member used in a manufacturing method according to another embodiment of the present invention, wherein a is a plan view and b is a longitudinal sectional view.

【図１１】同製造方法による一の製造工程の概要を示
し、ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａの
Ｂ−Ｂ矢視相当断面図である。11 shows an outline of one manufacturing process according to the manufacturing method, in which a is a cross-sectional view taken along the line AA of FIG. 1a, and b is a cross-sectional view taken along the line BB of FIG. 1a.

【図１２】図１１の製造工程に続く製造工程の概要を示
し、ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａの
Ｂ−Ｂ矢視相当断面図である。12 shows an outline of a manufacturing process subsequent to the manufacturing process of FIG. 11, wherein a is a cross-sectional view taken along the line AA of FIG. 1a, and b is a cross-sectional view taken along the line BB of FIG. 1a.

【図１３】図１２の製造工程に続く製造工程の概要を示
し、ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａの
Ｂ−Ｂ矢視相当断面図である。13 shows an outline of a manufacturing process subsequent to the manufacturing process of FIG. 12, wherein a is a cross-sectional view taken along the line AA of FIG. 1a, and b is a cross-sectional view taken along the line BB of FIG. 1a.

【図１４】図１３の製造工程に続く製造工程の概要を示
し、ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａの
Ｂ−Ｂ矢視相当断面図である。14 shows an outline of a manufacturing process subsequent to the manufacturing process of FIG. 13; FIG. 14A is a cross-sectional view taken along line AA of FIG. 1A; and FIG. 14B is a cross-sectional view taken along line BB of FIG.

【図１５】図１４の製造工程に続く製造工程の概要を示
し、ａが図１ａのＡ−Ａ矢視相当断面図、ｂが図１ａの
Ｂ−Ｂ矢視相当断面図である。15 shows an outline of a manufacturing process subsequent to the manufacturing process of FIG. 14; FIG. 15A is a cross-sectional view taken along the line AA of FIG. 1A;

【符号の説明】[Explanation of symbols]

１ カバー部材 １０ 基体 １１ ベース部 １２ キートップ部 １３ 取付部 １４ 薄肉部 １５ 透光性白色層 １６ 透光性着色層 １８ 遮光性着色層（遮光性第２着色層） １８ａ 表示部 ２０ キートップ部材 ２１ 透光性着色層 ２２ 遮光性着色層（遮光性第１着色層） ２２ａ 表示部 ２９ 遮光性着色層 ２９ａ 表示部 Ｊ マスキング治具 DESCRIPTION OF SYMBOLS 1 Cover member 10 Base 11 Base part 12 Key top part 13 Attachment part 14 Thin part 15 Light transmissive white layer 16 Light transmissive coloring layer 18 Light shielding coloring layer (second light shielding coloring layer) 18a Display part 20 Key top member Reference Signs List 21 translucent colored layer 22 light-shielded colored layer (light-shielded first colored layer) 22a display unit 29 light-shielded colored layer 29a display unit J masking jig

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 キートップ部材を透光性の樹脂あるいは
ゴム組成物で成形し、該キートップ部材の外表面に遮光
性第１着色層を形成するとともに、該キートップ部材を
固着可能な少なくとも１つの取付部と少なくとも１つの
キートップ部とがそれぞれ薄肉のスカート部を介してベ
ース部に連続する基体を透光性のゴム組成物で成形し、 前記遮光性第１着色層が形成されたキートップ部材を前
記基体の取付部に固着して前記基体に接着されたキート
ップ部材をマスキング治具で被覆し、前記基体の表面全
面に前記キートップ部材の遮光性第１着色層と異なる色
彩の遮光性第２着色層を形成した後に前記マスキング治
具を取り外し、 前記キートップ部材の天面上の遮光性第１着色層および
前記キートップ部天面上の遮光性第２着色層をレーザー
光の照射で文字、記号あるいは図形状に除去して表示部
を形成することを特徴とする照光式押釦スイッチ用カバ
ー部材の製造方法。1. A key top member formed of a translucent resin or rubber composition, a light-shielding first colored layer formed on an outer surface of the key top member, and at least a key top member capable of being fixed thereto. A base in which one attachment portion and at least one key top portion are respectively connected to the base portion through a thin skirt portion is molded with a translucent rubber composition, and the light-shielding first colored layer is formed. The key top member is fixed to the mounting portion of the base, the key top member adhered to the base is covered with a masking jig, and the entire surface of the base is different in color from the light-shielding first colored layer of the key top member. After the light-shielding second colored layer is formed, the masking jig is removed, and the light-shielding first colored layer on the top surface of the key-top member and the light-shielding second colored layer on the top surface of the key-top portion are formed by laser. light Manufacturing method of irradiation with characters, symbols or removed in FIG shape and forming a display unit illuminated pushbutton switch cover member. 【請求項２】 キートップ部材を透光性の樹脂あるいは
ゴム組成物で成形し、該キートップ部材の少なくとも天
面部分に透光性着色層を形成した後に該透光性着色層に
重ねて外表面に遮光性第１着色層を形成するとともに、 前記キートップ部材を固着可能な少なくとも１つの取付
部と少なくとも１つのキートップ部とがそれぞれ薄肉の
スカート部を介してベース部に連続する基体を透光性の
ゴム組成物で成形し、前記キートップ部材を前記基体の
取付部に固着して前記気体に接着されたキートップ部材
をマスキング治具で被覆し、前記基体の少なくともキー
トップ部天面部分に透光性着色層を形成するとともに、
該透光性着色層に重ねて前記基体の表面全面に前記キー
トップ部材の遮光性第１着色層と異なる色彩の遮光性第
２着色層を形成し、この後に、前記マスキング治具を取
り外し、 前記キートップ部材の天面上の遮光性第１着色層および
前記キートップ部天面上の遮光性第２着色層をレーザー
光の照射で文字、記号あるいは図形状に除去して表示部
を形成することを特徴とする照光式押釦スイッチ用カバ
ー部材の製造方法。2. A key top member is molded from a translucent resin or rubber composition, and a translucent colored layer is formed on at least a top surface of the key top member, and then overlaid on the translucent colored layer. A base body having a light-shielding first colored layer formed on an outer surface thereof, and at least one attachment portion to which the key top member can be fixed and at least one key top portion each connected to the base portion via a thin skirt portion. Is molded with a translucent rubber composition, the key top member is fixed to the mounting portion of the base, and the key top member bonded to the gas is covered with a masking jig, and at least the key top portion of the base is While forming a translucent colored layer on the top surface,
A light-shielding second colored layer having a color different from that of the light-shielding first colored layer of the key top member is formed on the entire surface of the substrate so as to overlap the light-transmitting colored layer, and thereafter, the masking jig is removed. A light-shielding first colored layer on the top surface of the key-top member and a light-shielding second colored layer on the top surface of the key-top portion are removed into a character, symbol, or figure by irradiation with a laser beam to form a display portion. A method of manufacturing a cover member for an illuminated push button switch. 【請求項３】 前記遮光性第１着色層または遮光性第２
着色層の一方または双方を黒色顔料が０．０３〜１．５
０重量部と有彩色顔料が８〜２０重量部配合された組成
物で形成した請求項１または請求項２に記載の照光式押
釦スイッチ用カバー部材の製造方法。3. The light-shielding first colored layer or the light-shielding second color layer.
One or both of the coloring layers is made of a black pigment of 0.03 to 1.5.
3. The method for manufacturing a cover member for an illuminated push button switch according to claim 1, wherein the cover member is formed of a composition in which 0 parts by weight and 8 to 20 parts by weight of a chromatic pigment are blended. 【請求項４】 組成物が前記黒色顔料の３〜１０倍の酸
化チタンを含有する請求項３に記載の照光式押釦スイッ
チ用カバー部材の製造方法。4. The method for producing a cover member for an illuminated push button switch according to claim 3, wherein the composition contains titanium oxide 3 to 10 times the black pigment. 【請求項５】 キートップ部材を透光性の樹脂あるいは
ゴム組成物で成形し、該キートップ部材の外表面に文
字、記号あるいは図形の表示部を形成するとともに、該
キートップ部材を固着可能な少なくとも１つの取付部と
少なくとも１つのキートップ部とがそれぞれ薄肉のスカ
ート部を介してベース部に連続する基体を透光性のゴム
組成物で成形し、 前記表示部が形成されたキートップ部材を前記基体の取
付部に接着固定してマスキング治具で被覆し、前記基体
の表面全面に遮光性着色層を形成し、 前記キートップ部天面上の遮光性着色層をレーザー光の
照射で文字、記号あるいは図形状に除去して表示部を形
成することを特徴とする照光式押釦スイッチ用カバー部
材の製造方法。5. A key top member is formed of a translucent resin or rubber composition to form a character, symbol or graphic display portion on the outer surface of the key top member, and the key top member can be fixed thereto. A key top in which at least one attachment portion and at least one key top portion are formed of a translucent rubber composition on a base that is continuous with the base portion via a thin skirt portion, and the display portion is formed. The member is adhered and fixed to the mounting portion of the base, covered with a masking jig, a light-shielding colored layer is formed on the entire surface of the base, and the light-shielding colored layer on the top surface of the key top portion is irradiated with laser light. And forming a display portion by removing the characters, symbols, or figures into a display portion.
JP34201697A 1997-11-28 1997-11-28 Manufacture of lighting type push-button switch cover member Pending JPH11162278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34201697A JPH11162278A (en) 1997-11-28 1997-11-28 Manufacture of lighting type push-button switch cover member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34201697A JPH11162278A (en) 1997-11-28 1997-11-28 Manufacture of lighting type push-button switch cover member

Publications (1)

Publication Number Publication Date
JPH11162278A true JPH11162278A (en) 1999-06-18

Family

ID=18350536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34201697A Pending JPH11162278A (en) 1997-11-28 1997-11-28 Manufacture of lighting type push-button switch cover member

Country Status (1)

Country Link
JP (1) JPH11162278A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020088178A (en) * 2001-05-18 2002-11-27 주식회사 유일전자 Key pad for film insert key and silicone rubber combination type cellular phone and manufacturing method of the same
JP2004327420A (en) * 2003-04-11 2004-11-18 Polymatech Co Ltd Key sheet and method of manufacturing key sheet
US20120171414A1 (en) * 2011-01-04 2012-07-05 Nokia Corporation Apparatus and Method for a User Input Element in an Electronic Device
US9259884B2 (en) 2013-05-16 2016-02-16 Blackberry Limited Method and apparatus pertaining to reversed thermoformed film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020088178A (en) * 2001-05-18 2002-11-27 주식회사 유일전자 Key pad for film insert key and silicone rubber combination type cellular phone and manufacturing method of the same
JP2004327420A (en) * 2003-04-11 2004-11-18 Polymatech Co Ltd Key sheet and method of manufacturing key sheet
JP4512346B2 (en) * 2003-04-11 2010-07-28 ポリマテック株式会社 Key sheet and key sheet mounting structure
US20120171414A1 (en) * 2011-01-04 2012-07-05 Nokia Corporation Apparatus and Method for a User Input Element in an Electronic Device
US9259884B2 (en) 2013-05-16 2016-02-16 Blackberry Limited Method and apparatus pertaining to reversed thermoformed film

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