JPH01154414A - Manufacture of light radiation type contact rubber - Google Patents

Manufacture of light radiation type contact rubber

Info

Publication number
JPH01154414A
JPH01154414A JP62291724A JP29172487A JPH01154414A JP H01154414 A JPH01154414 A JP H01154414A JP 62291724 A JP62291724 A JP 62291724A JP 29172487 A JP29172487 A JP 29172487A JP H01154414 A JPH01154414 A JP H01154414A
Authority
JP
Japan
Prior art keywords
contact rubber
light
light shielding
metal mould
shielding paint
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
Application number
JP62291724A
Other languages
Japanese (ja)
Other versions
JPH0467290B2 (en
Inventor
Noriko Komatsuzaki
小松崎　法子
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.)
Polymatech Co Ltd
Original Assignee
Polymatech 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 Polymatech Co Ltd filed Critical Polymatech Co Ltd
Priority to JP62291724A priority Critical patent/JPH01154414A/en
Publication of JPH01154414A publication Critical patent/JPH01154414A/en
Publication of JPH0467290B2 publication Critical patent/JPH0467290B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/008—Part of substrate or membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H01H2219/03—Printed information in transparent keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/064—Optical isolation of switch sites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/044—Injection moulding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/044—Injection moulding
    • H01H2229/046—Multi-colour or double shot injection moulding

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Switches (AREA)
  • Push-Button Switches (AREA)

Abstract

PURPOSE:To make it possible to carry out a perfect light shielding by filling a contact rubber material in a metal mould to which a light shielding paint is spread beforehand, forming it, and at the same time, copying the light shielding paint to the outer periphery of the contact rubber. CONSTITUTION:When a contact rubber is formed, a light shielding paint 2 (oblique lines) is spread inside a metal mould 1, at the positions of the side surfaces (a) of a key top, the outer surfaces (b) of a spring, and the upper surface (c) of a base, of the contact rubber to manufacture. Then, a contact rubber material of a transparent silicon rubber or the like is poured in the metal mould 1 and formed. In this formation process, the light shielding paint 2 spread at the inner surface of the metal mould 1 is copied to the outer surfaces (a) to (c) of the contact rubber 3 except the upper light radiating part (d). After the formation process, the upper surface is light-shielding-printed with an opaque ink 4, except the mark display of ON, OFF, or figures at the upper side (d) of the key top. The leakage of light radiation can be prevented perfectly consequently.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、各種エレクトロニクス機器のスイッチに使用
する接点ゴムのうち照光式接点ゴムの製造法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of manufacturing an illuminated contact rubber among contact rubbers used in switches of various electronic devices.

［従来の技術］ 従来の照光式接点ゴムは、第４図に示すように、内側に
接点１２を有するキートップ部１１を透明シリコーンゴ
ム等の透明弾性材にて作成し、光を遮断させたい部分を
遮光板等１３でカバーしている。[Prior Art] As shown in FIG. 4, in a conventional illuminated contact rubber, a key top portion 11 having a contact point 12 on the inside is made of a transparent elastic material such as transparent silicone rubber to block light. The portion is covered with a light shielding plate or the like 13.

［発明が解決しようとする問題点］ しかしこの従来の方式では、下方あるいは側方の光源１
４．１５からの照光が遮光板１３とキートップ部１１と
の隙間Ａより洩れ完全な遮光ができなかった。[Problems to be solved by the invention] However, in this conventional method, the light source 1 located below or on the side
Illumination from 4.15 leaked through the gap A between the light shielding plate 13 and the key top portion 11, and complete light shielding was not possible.

［問題点を解決するための手段］ そこで本発明は、接点ゴムを成形する金型内面の必要部
位、例えば接点ゴムのキートップ部側面。[Means for Solving the Problems] Therefore, the present invention is directed to a necessary portion of the inner surface of a mold for molding the contact rubber, for example, the side surface of the key top portion of the contact rubber.

薄肉のバネ部外面およびベース部上面に該当する位置に
遮光性塗料を塗布しておき、成形時に同時に転写して遮
光部を形成するようにした乙のである。そのｆ＆キート
ップ部上面照光部分を必要な表示箇所を除き非透光性の
インクにて印刷して照光式接点ゴムを完成させる。A light-shielding paint is applied to the corresponding positions on the outer surface of the thin spring part and the upper surface of the base part, and is simultaneously transferred during molding to form the light-shielding part. The illuminated portion of the upper surface of the f&key top portion is printed with non-transparent ink except for necessary display areas to complete the illuminated contact rubber.

［実施例］ 次に図面に示す実施ｐ１に従って本発明を説明する。[Example] Next, the present invention will be explained according to the embodiment p1 shown in the drawings.

第１図は、ａ雌の金型１を示し、接点ゴムの成形にあた
って、まずこの金型１の内面であって、製作する接点ゴ
ムのキー■・ツブ部側面ａ、バネ部外面すおよびベース
部上面Ｃに対する部位に遮光性塗料２（斜線で示す）を
塗布する０次にこの金型内に透明シリコーンゴム等の接
点ゴム材料を注入し成形する。この成形時に金型内面に
塗布しておいた遮光性塗料２が接点ゴム３の上面照光部
ｄを除き他の外側面ａ、ｂ、ｃに転写される。成形後キ
ートップ上面ｄのＯＮ、ＯＦＦあるいは数字等の符号表
示部分を除き、上面を非透光性インク４にて遮光印刷す
る。キートップ内面の凸部は接点５であり、下板６はプ
リント基板、そしてプリント基板の間に配置されている
のは照光用光源７である。Fig. 1 shows a female mold 1, and when molding the contact rubber, first the inner surface of this mold 1, the key ■, the side surface a of the tab part, the outer surface of the spring part, and the base of the contact rubber to be manufactured. A light-shielding paint 2 (indicated by diagonal lines) is applied to the area corresponding to the upper surface C of the part.Next, a contact rubber material such as transparent silicone rubber is injected into the mold and molded. During this molding, the light-shielding paint 2 applied to the inner surface of the mold is transferred to the outer surfaces a, b, and c of the contact rubber 3 except for the upper surface illumination portion d. After molding, the upper surface of the key top is printed with light-shielding ink 4 with non-transparent ink 4, except for the ON, OFF, numeral, and other code display portions on the upper surface d of the key top. The convex portion on the inner surface of the key top is a contact point 5, the lower plate 6 is a printed circuit board, and a light source 7 for illumination is arranged between the printed circuit boards.

［発明の効果］ 本発明による照光式接点ゴムは、以上のようにして製造
されるので、成形と同時に遮光加工が行われるため非常
に簡単であり、且つ接点ゴムの外側面が全て照光される
ので照光の洩れを完全に防ぐことができる。またいかな
る形状の接点ゴムにも対処できるものである。[Effects of the Invention] Since the illuminated contact rubber according to the present invention is manufactured as described above, the light shielding process is performed at the same time as molding, so it is very simple, and the entire outer surface of the contact rubber is illuminated. Therefore, leakage of illumination can be completely prevented. Furthermore, it can be used with any shape of contact rubber.

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

第１図は、金型の断面図。 第２図は、（２点ゴムの断面構造図。 第３図は、キートップ部上面図。 第４図は、従来の照光式接点ゴムの断面構造図。 FIG. 1 is a sectional view of the mold. FIG. 2 is a cross-sectional structural diagram of a two-point rubber. FIG. 3 is a top view of the key top part. FIG. 4 is a cross-sectional structural diagram of a conventional light-emitting contact rubber.

Claims (1)

【特許請求の範囲】[Claims] 接点ゴムを成形するにあたり、その金型内面に遮光性塗
料を予じめ塗布しておき、その後金型内に接点ゴム材料
を入れ成形し、この成形と同時に接点ゴム外周面に前記
遮光性塗料を転写させる照光式接点ゴムの製造法。When molding the contact rubber, a light-shielding paint is applied to the inner surface of the mold in advance, and then the contact rubber material is put into the mold and molded, and at the same time as the molding, the light-shielding paint is applied to the outer peripheral surface of the contact rubber. A manufacturing method for illuminated contact rubber that transfers images.
JP62291724A 1987-11-20 1987-11-20 Manufacture of light radiation type contact rubber Granted JPH01154414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62291724A JPH01154414A (en) 1987-11-20 1987-11-20 Manufacture of light radiation type contact rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62291724A JPH01154414A (en) 1987-11-20 1987-11-20 Manufacture of light radiation type contact rubber

Publications (2)

Publication Number Publication Date
JPH01154414A true JPH01154414A (en) 1989-06-16
JPH0467290B2 JPH0467290B2 (en) 1992-10-27

Family

ID=17772572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62291724A Granted JPH01154414A (en) 1987-11-20 1987-11-20 Manufacture of light radiation type contact rubber

Country Status (1)

Country Link
JP (1) JPH01154414A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0366126U (en) * 1989-10-30 1991-06-27
JPH0366125U (en) * 1989-10-30 1991-06-27
JPH04163816A (en) * 1990-10-26 1992-06-09 Nissha Printing Co Ltd Pattern portion transparent type pushbutton panel
JPH05174664A (en) * 1991-12-24 1993-07-13 San Aroo Kk Back-lighted key
EP1701368A1 (en) * 2005-03-11 2006-09-13 Delphi Technologies Inc. Switching pad for an electric switch
JP2008533263A (en) * 2005-03-15 2008-08-21 インモルド バイオシステムズ エイ／エス Transfer of material to the polymer surface
WO2020121688A1 (en) * 2018-12-13 2020-06-18 アルプスアルパイン株式会社 Device and operation device
EP3576121A4 (en) * 2017-01-24 2020-11-04 Alps Alpine Co., Ltd. Switch having waterproofing and light leakage preventing structure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0366126U (en) * 1989-10-30 1991-06-27
JPH0366125U (en) * 1989-10-30 1991-06-27
JPH04163816A (en) * 1990-10-26 1992-06-09 Nissha Printing Co Ltd Pattern portion transparent type pushbutton panel
JPH05174664A (en) * 1991-12-24 1993-07-13 San Aroo Kk Back-lighted key
EP1701368A1 (en) * 2005-03-11 2006-09-13 Delphi Technologies Inc. Switching pad for an electric switch
JP2008533263A (en) * 2005-03-15 2008-08-21 インモルド バイオシステムズ エイ／エス Transfer of material to the polymer surface
EP3576121A4 (en) * 2017-01-24 2020-11-04 Alps Alpine Co., Ltd. Switch having waterproofing and light leakage preventing structure
WO2020121688A1 (en) * 2018-12-13 2020-06-18 アルプスアルパイン株式会社 Device and operation device
JPWO2020121688A1 (en) * 2018-12-13 2021-10-07 アルプスアルパイン株式会社 Equipment and operating equipment
US11454754B2 (en) 2018-12-13 2022-09-27 Alps Alpine Co., Ltd. Switch device and operation device

Also Published As

Publication number Publication date
JPH0467290B2 (en) 1992-10-27

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