JPH041970B2 - - Google Patents
Info
- Publication number
- JPH041970B2 JPH041970B2 JP59193966A JP19396684A JPH041970B2 JP H041970 B2 JPH041970 B2 JP H041970B2 JP 59193966 A JP59193966 A JP 59193966A JP 19396684 A JP19396684 A JP 19396684A JP H041970 B2 JPH041970 B2 JP H041970B2
- Authority
- JP
- Japan
- Prior art keywords
- mark
- film
- silicone elastomer
- mold
- key top
- 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.)
- Expired - Lifetime
Links
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、電気機器等のスイツチに使用される
接点ゴムのキートツプ部分に印刷されたマークの
耐久性改善に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to improving the durability of marks printed on key tops of rubber contacts used in switches for electrical equipment and the like.
［従来の技術］
従来接点ゴムは、シリコーン系エラストマーを
用いて加硫成形後、同系統の印刷インクを用いて
スクリーン印刷によりキートツプ表面にマークを
印刷し、170〜200℃の温度で一定時間乾燥炉に入
れて製作されていた。[Conventional technology] Conventional contact rubber is made by vulcanization molding using silicone elastomer, then printing marks on the key top surface by screen printing using the same type of printing ink, and drying at a temperature of 170 to 200 degrees Celsius for a certain period of time. It was produced in a furnace.
［発明が解決しようとする問題点］
キートツプは、操作時常に人の指で叩かれた
り、擦られたりするので、印刷された表示マーク
が薄くなつたり、剥げたりして遂には消える恐れ
があつた。[Problems to be solved by the invention] Since key tops are constantly struck or rubbed by human fingers during operation, there is a risk that the printed display marks may fade, peel off, and eventually disappear. Ta.
［問題を解決するための手段］
そこで本発明は、接点ゴムのキートツプの表面
が透明シリコーンエラストマーのフイルムにてカ
バーされ、そしてマークがそのフイルムの内側に
位置するように一体に成形されるようにし、人の
指が直接マークに触れることがなく、従つてマー
クが消えるおそれが全くない寿命の長い接点ゴム
の製造法を提供するものである。[Means for Solving the Problem] Therefore, the present invention covers the surface of the key top of the contact rubber with a transparent silicone elastomer film, and the mark is integrally molded so that it is located inside the film. To provide a method for manufacturing a contact rubber having a long life, in which a person's finger does not directly touch the mark and there is no fear that the mark will disappear.
［実施例］
透明シリコーン系エラストマーにより製作され
たフイルム１の表面に、同系統の印刷インクを用
いて、スクリーン印刷によりマーク２を印刷した
ものを予め準備しておき、第３図に示すように、
金型の下型３のキートツプ位置に印刷マーク面２
を内側にしてフイルム１を挿入する。その上にシ
リコーン系エラストマー４を置いて金型を閉じ
（第３図）加硫プレスで加圧加熱し、フイルムマ
ークと接点ゴムのエラストマーのキートツプ４は
一体となつて成形される。[Example] A mark 2 was printed on the surface of a film 1 made of transparent silicone elastomer by screen printing using the same type of printing ink, and the mark 2 was printed as shown in FIG. ,
Print mark surface 2 at the key top position of the lower mold 3 of the mold
Insert film 1 with the side facing inside. A silicone elastomer 4 is placed on top of the silicone elastomer 4, the mold is closed (FIG. 3), and the key top 4 of the elastomer of the contact rubber is integrally molded by applying pressure and heat in a vulcanizing press.
この様にして、キートツプの表面に透明シリコ
ーン系エラストマーフイルムそしてその内面にマ
ークが一体に成形され、第４図に示す接点ゴムが
作成される。 In this way, a transparent silicone elastomer film is formed on the surface of the key top and a mark is integrally formed on the inner surface of the key top, thereby producing the contact rubber shown in FIG. 4.
［発明の効果］
このように、簡単な製造法にて、しかも容易に
マークの消えない接点ゴムを得ることができる。[Effects of the Invention] In this way, it is possible to easily obtain a contact rubber with a mark that does not disappear by a simple manufacturing method.
第１図は、本発明接点ゴムの断面図。第２図
は、マークを印刷したフイルム。第３図は、金型
分解図。第４図は、金型断面図。
１……フイルム、２……マーク、３……金型下
型、４……シリコーン系エラストマー。
FIG. 1 is a sectional view of the contact rubber of the present invention. Figure 2 shows a film with a mark printed on it. Figure 3 is an exploded view of the mold. FIG. 4 is a sectional view of the mold. 1...Film, 2...Mark, 3...Mold lower mold, 4...Silicone elastomer.
Claims (1)
系エラストマーフイルムにマークを印刷し、次に
金型のキートツプ成型位置に、前記フイルムのマ
ーク面が内側になるように挿入し、その上にシリ
コーン系エラストマーを置き、金型を閉じ、加硫
プレスにて加圧、加熱する工程からなるフイルム
マークを内側にしてキートツプと一体に成形する
接点ゴムの製造法。1 Print a mark on a transparent silicone elastomer film using the same type of printing ink, then insert the film into the key top molding position of the mold with the mark side facing inside, and place the silicone elastomer film on top of it. A contact rubber manufacturing method in which the film mark is placed on the inside, the mold is closed, and the key top is integrally molded with the film mark on the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19396684A JPS6174215A (en) | 1984-09-18 | 1984-09-18 | Contact rubber and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19396684A JPS6174215A (en) | 1984-09-18 | 1984-09-18 | Contact rubber and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174215A JPS6174215A (en) | 1986-04-16 |
| JPH041970B2 true JPH041970B2 (en) | 1992-01-16 |
Family
ID=16316726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19396684A Granted JPS6174215A (en) | 1984-09-18 | 1984-09-18 | Contact rubber and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6174215A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0195023U (en) * | 1987-12-16 | 1989-06-22 | ||
| JP2609142B2 (en) * | 1988-12-02 | 1997-05-14 | 三菱電機株式会社 | Key button |
| JPH0577824U (en) * | 1992-03-19 | 1993-10-22 | しなのポリマー株式会社 | Key for push button switch |
| JP2681332B2 (en) * | 1993-04-30 | 1997-11-26 | サンアロー株式会社 | Keypad and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT975915B (en) * | 1972-12-01 | 1974-08-10 | Olivetti & Co Spa | KEYBOARD IN ELASTIC MATERIAL FOR OFFICE MACHINES |
| JPS58201212A (en) * | 1982-05-19 | 1983-11-24 | 光葉スチ−ル株式会社 | Keyboard and method of forming same |
-
1984
- 1984-09-18 JP JP19396684A patent/JPS6174215A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6174215A (en) | 1986-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |