JPS629006B2 - - Google Patents
Info
- Publication number
- JPS629006B2 JPS629006B2 JP14746079A JP14746079A JPS629006B2 JP S629006 B2 JPS629006 B2 JP S629006B2 JP 14746079 A JP14746079 A JP 14746079A JP 14746079 A JP14746079 A JP 14746079A JP S629006 B2 JPS629006 B2 JP S629006B2
- Authority
- JP
- Japan
- Prior art keywords
- display
- mold
- key top
- film
- forming
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
- B29C45/14016—Intermittently feeding endless articles, e.g. transfer films, to the mould
- B29C45/14024—Intermittently feeding endless articles, e.g. transfer films, to the mould and punching or cutting a portion from the endless articles during mould closing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
Description
【発明の詳細な説明】
本発明の押釦スイツチ等に使用するキートツプ
の表示形成方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a display on a key top used in a push button switch or the like.
通常、キートツプにはその上面にスイツチ機能
を表わす文字や記号等を施すが、この表示として
は人の直接操作する関係上耐久性が有り且つキー
トツプ本体とは異なる色で形成する方が望まし
い。 Normally, a key top has letters or symbols on its top surface indicating a switch function, but it is preferable for this display to be durable since it will be directly operated by a person, and to be formed in a different color from the key top itself.
従来の表示形成方法はキートツプ上面に彫刻を
施し塗料を入れて表示を形成する方法が一般的で
あるが、これではコスト高で且つ耐久性の点でも
問題があつた。 The conventional display forming method is generally to engrave the top surface of the key top and apply paint to form the display, but this method is expensive and has problems in terms of durability.
本発明はこの従来欠点を解決したもので、以下
実施例を図面により説明する。 The present invention solves this conventional drawback, and embodiments will be described below with reference to the drawings.
第１図は本発明に係るキートツプ用のモールド
成形型を分解状態で示す側面断面図、第２図は第
１図のモールド成形時の型状態を示す側面断面
図、第３図は第１図、第２図のモールド成形型に
より形成された本発明に係るキートツプを示す斜
視図である。 FIG. 1 is a side cross-sectional view showing a mold for a key top according to the present invention in an exploded state, FIG. 2 is a side cross-sectional view showing the state of the mold during molding of FIG. 1, and FIG. FIG. 3 is a perspective view showing a key top according to the present invention formed by the mold shown in FIG. 2;
図において、１は鍋形状のキートツプの内部空
間を形成するコア２を備えた第１の可動モールド
型、３はキートツプの外形形状を得るための凹部
４を備えた固定モールド型、５は切断ポンチ６を
備えたフイルム切断機構を形成する可動モールド
型、７は文字等の表示８を裏面に印刷したフイル
ムである。 In the figure, 1 is a first movable mold with a core 2 that forms the interior space of the pot-shaped key top, 3 is a fixed mold with a recess 4 for obtaining the external shape of the key top, and 5 is a cutting punch. 6 is a movable mold forming a film cutting mechanism; 7 is a film having a display 8 such as characters printed on the back side thereof;
又、固定モールド型３の凹部４の上面は貫通穴
９を介して外方へ連通している。 Further, the upper surface of the recess 4 of the fixed mold 3 communicates with the outside via a through hole 9.
更に、固定モールド型３の両側に夫々可動モー
ルド型１と５を配置すると共に固定モールド型３
と可動モールド型５間にフイルム７を位置させ
る。 Furthermore, movable molds 1 and 5 are arranged on both sides of the fixed mold 3, respectively, and the fixed mold 3
The film 7 is positioned between the movable mold 5 and the movable mold 5.
この際、コア２は凹部４に対向し、切断ポンチ
６は表示８を介し貫通穴９に対向して配置されて
いる。 At this time, the core 2 is placed opposite the recess 4, and the cutting punch 6 is placed opposite the through hole 9 with the display 8 interposed therebetween.
そして、第２図に示す如く可動モールド型１，
５を固定モールド型３に挿着することにより、切
断ポンチ６がフイルム７を切断して表示８を凹部
４の上面に位置させる。 Then, as shown in FIG. 2, the movable mold 1,
By inserting the film 5 into the fixed mold 3, the cutting punch 6 cuts the film 7 and positions the display 8 on the upper surface of the recess 4.
この状態においてはコア２、凹部４、切断ポン
チ６の頭部によりキートツプ形成用のキヤビテイ
が形成され、溶融したモールド材１０を該キヤビ
テイ内に注入すれば表示８が上面にインサートモ
ールドされた第３図に示す如きキートツプが得ら
れる。 In this state, a cavity for forming the key top is formed by the core 2, the recess 4, and the head of the cutting punch 6, and when the molten molding material 10 is injected into the cavity, the third part with the display 8 insert-molded on the top surface is formed. A keytop as shown in the figure is obtained.
以上の如く本発明によれば、表示がインサート
モールドされているので耐久性に優れたものを安
価に得ることができ、又表示は多色のものを用い
ることにより種々の表示付キートツプを得ること
ができるなどその実用上の効果は著しいものであ
る。 As described above, according to the present invention, since the display is insert-molded, it is possible to obtain a highly durable display at a low cost, and by using a multi-colored display, key tops with various displays can be obtained. Its practical effects are remarkable.
第１図と第２図は本発明に係るモールド成形型
を示す側面断面図、第３図は第１図と第２図によ
り形成された本発明に係るキートツプの斜視図で
ある。
〔符号の説明〕 １，３，５…モールド成形
型、６…切断ポンチ、７…フイルム、８…表示、
１０…モールド材。
1 and 2 are side sectional views showing a mold according to the present invention, and FIG. 3 is a perspective view of a key top according to the present invention formed according to FIGS. 1 and 2. [Explanation of symbols] 1, 3, 5...mold mold, 6...cutting punch, 7...film, 8...display,
10...Mold material.
Claims (1)
示部を備えたキートツプを形成する方法におい
て、表示を備えたフイルムを設け、且つ前記モー
ルド成形型内には切断ポンチからなるフイルム切
断機構を設けると共に該切断ポンチ頭部が前記モ
ールド成形型によるキートツプ形成用キヤビテイ
の前記表示部に対応する部分を構成し、前記切断
ポンチにより前記フイルムの表示を切断してこれ
を前記キヤビテイ内に位置させ、この状態で該キ
ヤビテイ内にモールド材を注入して表示フイルム
をインサートモールドすることを特徴としたキー
トツプの表示形成方法。1. A method of forming a key top with a display section such as letters on the upper surface using a mold, in which a film with a display is provided, and a film cutting mechanism consisting of a cutting punch is provided in the mold. A cutting punch head constitutes a portion corresponding to the display part of the key top forming cavity formed by the mold, and the cutting punch cuts the display of the film and positions it in the cavity, and in this state. A method for forming a display on a key top, comprising injecting a molding material into the cavity and insert-molding a display film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14746079A JPS5670953A (en) | 1979-11-14 | 1979-11-14 | Formation of keytop indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14746079A JPS5670953A (en) | 1979-11-14 | 1979-11-14 | Formation of keytop indication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5670953A JPS5670953A (en) | 1981-06-13 |
| JPS629006B2 true JPS629006B2 (en) | 1987-02-26 |
Family
ID=15430861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14746079A Granted JPS5670953A (en) | 1979-11-14 | 1979-11-14 | Formation of keytop indication |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5670953A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60212314A (en) * | 1984-04-09 | 1985-10-24 | Dainippon Printing Co Ltd | Injection mold assembly with decorated sheet |
| FR2592833B1 (en) * | 1986-01-13 | 1988-05-27 | Dromigny Pierre | METHOD FOR MANUFACTURING OBJECTS BY INJECTION OF SYNTHETIC MATERIAL ONTO A FILM CUT FROM A STRIP AND MACHINE FOR CARRYING OUT THE METHOD |
| DE4326626A1 (en) * | 1993-08-07 | 1995-02-09 | Bosch Gmbh Robert | Process and tool for manufacturing plastic parts |
-
1979
- 1979-11-14 JP JP14746079A patent/JPS5670953A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5670953A (en) | 1981-06-13 |
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