JP2535308B2 - Key top - Google Patents
Key topInfo
- Publication number
- JP2535308B2 JP2535308B2 JP5325962A JP32596293A JP2535308B2 JP 2535308 B2 JP2535308 B2 JP 2535308B2 JP 5325962 A JP5325962 A JP 5325962A JP 32596293 A JP32596293 A JP 32596293A JP 2535308 B2 JP2535308 B2 JP 2535308B2
- Authority
- JP
- Japan
- Prior art keywords
- display
- key top
- resin
- display unit
- outer shape
- 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
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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/46—Knobs or handles, push-buttons, grips
- B29L2031/466—Keypads, keytops
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、カーステレオ・カーラ
ジオ等の各種入力装置に使用されるキートップ及びその
製造方法に関し、特に表示部を照光させるキートップ及
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 key top used for various input devices such as car stereos and car radios, and a method for manufacturing the key top, and more particularly to a key top for illuminating a display section and a method for manufacturing the key top.
【０００２】[0002]
【従来の技術】キートップの文字などの表示部を成形す
る方法としては、一般にいわゆる二色成形法が用いられ
ている。2. Description of the Related Art A so-called two-color molding method is generally used as a method of molding a display portion such as characters on a key top.
【０００３】二色成形法は、表示部を含む表示部材を成
形した後その表面に表示部の天面のみ露出するようにし
て外形部材を表示部材上に一体に成形する方法である。The two-color molding method is a method of molding a display member including a display unit and then integrally molding an outer shape member on the display member such that only the top surface of the display unit is exposed on the surface.
【０００４】キートップの二色成形法を第４図、第５図
により説明する。The two-color molding method of the key top will be described with reference to FIGS. 4 and 5.
【０００５】第４図は表示部材を示す斜視図で、第５図
は第４図の表示部材上に外形部材を一体に成形したキー
トップを示す斜視図である。１は合成樹脂からなる表示
部材で、この表示部材１の上面に表示部２を突出させて
成形する。次に、表示部材１の外側に表示部２の天面を
露出させるようにして外形部材６を一体に成形してキー
トップ７を形成する。FIG. 4 is a perspective view showing a display member, and FIG. 5 is a perspective view showing a key top in which an external member is integrally formed on the display member of FIG. Reference numeral 1 is a display member made of a synthetic resin, and a display portion 2 is projected and molded on the upper surface of the display member 1. Next, the outer shape member 6 is integrally molded so that the top surface of the display unit 2 is exposed to the outside of the display member 1 to form the key top 7.
【０００６】ここで、たとえば数字の“０”、“４”の
ように表示部２が周囲を囲まれた閉鎖部３を有する場合
には、表示部材１の成形時に横方向移動可能なスライド
ピン（図示せず）で溝４を形成し、スライドピンを引き
抜いた後、溝４を介して閉鎖部３に外形部材６の樹脂を
注入しながら表示部材１上に外形部材６を一体に成形し
キートップ７を形成していた。Here, when the display portion 2 has a closed portion 3 surrounded by the periphery such as numbers "0" and "4", a slide pin which can move laterally when the display member 1 is molded. After forming the groove 4 with (not shown) and pulling out the slide pin, the outer member 6 is integrally molded on the display member 1 while injecting the resin of the outer member 6 into the closing portion 3 through the groove 4. The key top 7 was formed.
【０００７】[0007]
【発明が解決しようとする課題】しかし、上記方法によ
れば表示部２を透明又は半透明とし、表示部２のみ照光
させるような場合で、かつ表示部２に閉鎖部３を有する
場合には、表示部２より光透過度の小さい外形部材６が
表示部２下方の溝４に成形されるためその部分が影５と
なって目視されてしまい、表示部２が均一に照光できな
いという問題点があった。However, according to the above method, when the display unit 2 is made transparent or semi-transparent and only the display unit 2 is illuminated, and the display unit 2 has the closing portion 3, Since the outer shape member 6 having a light transmittance lower than that of the display unit 2 is formed in the groove 4 below the display unit 2, the portion is visually recognized as a shadow 5, and the display unit 2 cannot be illuminated uniformly. was there.
【０００８】[0008]
【課題を解決するための手段】前記課題を解決するため
の手段として、本発明は、表示部と台部を有する表示部
材と、前記表示部材に一体に樹脂成形された外形部材と
を備え、前記表示部は外形部材よりも光透過度の高い樹
脂で形成して表示部を照光させるようにしたキートップ
において、前記表示部は閉鎖部を有し、前記台部に前記
表示部の閉鎖部内と前記表示部の外側とに別々の貫通孔
を設け、前記表示部の下方に前記外形部材の樹脂を配す
ることなく、前記閉鎖部と夫々の前記貫通孔とが前記外
形部材の樹脂で埋設されている構成とした。As means for solving the above problems, the present invention comprises a display member having a display portion and a base portion, and an outer shape member integrally molded with the display member by resin molding. In the key top configured to illuminate the display unit by forming the display unit with a resin having a light transmittance higher than that of the outer shape member, the display unit has a closed portion, and the base portion has a closed portion of the display unit. And the outside of the display portion are provided with separate through holes, and the closing portion and each of the through holes are embedded with the resin of the outside member without disposing the resin of the outside member under the display portion. It has been configured.
【０００９】[0009]
【００１０】[0010]
【実施例】以下、本発明に係るキートップ及びその製造
方法を図面を基にして説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A key top and a method for manufacturing the same according to the present invention will be described below with reference to the drawings.
【００１１】第１図は表示部材の金型を示す要部断面
図、第２図は第１図のスライドピンの位置を示す斜視
図、第３図は第１図の表示部材上に外形部材を一体に成
形する金型を示す要部断面図である。FIG. 1 is a sectional view showing the mold of the display member, FIG. 2 is a perspective view showing the position of the slide pin of FIG. 1, and FIG. 3 is an external member on the display member of FIG. FIG. 3 is a cross-sectional view of a main part showing a mold that integrally molds.
【００１２】まず、第１図のように注入口８から透明樹
脂を注入して金型９、１０により表示部１１と台部１２
を成形し表示部材１３を成形する。この時、第２図のよ
うに突部１４、１５を有するスライドピン１６を金型
９、１０中に介在させて表示部１１の閉鎖部１７とこの
閉鎖部１７の外側に各々孔１８、１９を設ける。この孔
１８、１９は突部１４、１５により台部１２を貫通して
いる。孔１８、１９の間には突出部２０を形成するが、
この突出部２０は台部１２の厚みにより寸法ｄだけ大き
くする。スライドピン１６は上下動可能とされている。First, as shown in FIG. 1, a transparent resin is injected from an injection port 8 and molds 9 and 10 are used to display a display portion 11 and a base portion 12.
And the display member 13 is molded. At this time, as shown in FIG. 2, the slide pin 16 having the protrusions 14 and 15 is interposed in the molds 9 and 10, and the closing portion 17 of the display portion 11 and the holes 18 and 19 are provided outside the closing portion 17, respectively. To provide. The holes 18 and 19 penetrate the base 12 by the protrusions 14 and 15. A protrusion 20 is formed between the holes 18 and 19,
The protrusion 20 is enlarged by a dimension d depending on the thickness of the base 12. The slide pin 16 can move up and down.
【００１３】次に、第３図のように金型９を金型２１に
交換して、金型２１を表示部１１の天面２２の位置に固
定し、表示部材１３との間隙に注入口８より不透明樹脂
を注入して外形部材２３を成形する。この時、スライド
ピン１６も下動させて孔１８と孔１９とを連絡する通路
を形成し、不透明樹脂を通路を介して表示部１１の閉鎖
部１７に注入し成形する。Next, as shown in FIG. 3, the mold 9 is replaced with a mold 21, and the mold 21 is fixed at the position of the top surface 22 of the display unit 11, and the injection port is provided in the gap between the display member 13. An opaque resin is injected from 8 to form the outer shape member 23. At this time, the slide pin 16 is also moved downward to form a passage that connects the hole 18 and the hole 19, and an opaque resin is injected into the closing portion 17 of the display unit 11 through the passage to mold.
【００１４】即ち、スライドピン１６の突部１４、１５
を表示部材１３の突出部２０よりも低い位置まで下動さ
せることにより表示部材１３の突出部２０とスライドピ
ン１６との間に間隙通路を形成し、不透明樹脂を孔１８
から孔１９を通して表示部１１の閉鎖部１７へ注入す
る。その後台部１２の底面の延長線上もしくは第３図Ａ
−Ａ部で自動機（カッタ）等により突出部２０を切断し
てキートップ７が形成される。この時、突出部２０の下
方に一体に成形され通路内に注入された不透明樹脂の外
形部材も一緒に切断、除去されるので、キートップ７の
背面から照光しても表示部１１上に外形部材２３の影が
投影されることはなく均一な表示を得ることができる。That is, the protrusions 14 and 15 of the slide pin 16
Is moved downward to a position lower than the protruding portion 20 of the display member 13 to form a gap passage between the protruding portion 20 of the display member 13 and the slide pin 16, and the opaque resin is formed into the hole 18
The liquid is injected into the closing portion 17 of the display portion 11 through the hole 19. After that, on the extension of the bottom surface of the base 12, or in FIG. 3A.
The key top 7 is formed by cutting the projecting portion 20 with an automatic machine (cutter) or the like at the part-A. At this time, the outer shape member of the opaque resin that is integrally molded below the protruding portion 20 and is injected into the passage is also cut and removed, so that the outer shape of the key top 7 is displayed on the display portion 11 even when illuminated from the back surface. The shadow of the member 23 is not projected, and a uniform display can be obtained.
【００１５】以上のように本発明のキートップによれ
ば、表示部材が外形部材より光透過度を大きくして表示
部を照光させるキートップでかつ表示部に閉鎖部を有す
る場合であっても外形部材の影が表示部に投影すること
はなく均一な表示の行なえるキートップを得ることがで
きる。As described above, according to the key top of the present invention, even when the display member is a key top having a light transmittance higher than that of the outer shape member to illuminate the display portion, and the display portion has a closed portion. The shadow of the outer shape member is not projected on the display unit, and a key top capable of uniform display can be obtained.
【第１図】本発明の表示部材の金型を示す要部断面図。FIG. 1 is a sectional view of an essential part showing a mold of a display member of the present invention.
【第２図】第１図のスライドピンの位置を示す斜視図。FIG. 2 is a perspective view showing the position of the slide pin of FIG.
【第３図】第１図の表示部材上に外形部材を一体に成形
する金形を示す要部斜視図。FIG. 3 is a perspective view of a main part showing a die for integrally molding an outer shape member on the display member of FIG. 1.
【第４図】従来の表示部材を示す斜視図。FIG. 4 is a perspective view showing a conventional display member.
【第５図】従来のキートップを示す斜視図である。FIG. 5 is a perspective view showing a conventional key top.
８ 注入口 ９，１０ 金型 １１ 表示部 １２ 台部 １３ 表示部材 １４，１５ 突部 １６ スライドピン １７ 閉鎖部 １８，１９ 孔 ２０ 突出部 ２１ 金型 ２２ 天面 ２３ 外形部材 8 Injection port 9,10 Mold 11 Display part 12 Base part 13 Display member 14,15 Projection part 16 Slide pin 17 Closing part 18,19 Hole 20 Projection part 21 Mold 22 Top surface 23 External member
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 19:00 Ｂ２９Ｌ 19:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B29L 19:00 B29L 19:00
Claims (1)
示部材に一体に樹脂成形された外形部材とを備え、前記
表示部材は外形部材よりも光透過度の高い樹脂で形成し
て表示部を照光させるようにしたキートップにおいて、
前記表示部は閉鎖部を有し、前記台部に前記表示部の閉
鎖部内と前記表示部の外側とに別々の貫通孔を設け、前
記表示部の下方に前記外形部材の樹脂を配することな
く、前記閉鎖部と夫々の前記貫通孔とが前記外形部材の
樹脂で埋設されていることを特徴とするキートップ。1. A display member having a display portion and a base portion, and the table.
A key top , wherein the display member is integrally molded with a resin, and the display member is made of a resin having a light transmittance higher than that of the outer member to illuminate the display portion.
Wherein the display unit has a closure portion, provided separate through-holes and the outside of the display portion and a closed portion of the display unit on the base part, before
Do not place the resin of the external member below the display part.
In addition, the key top , wherein the closing portion and each of the through holes are embedded with the resin of the outer shape member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5325962A JP2535308B2 (en) | 1993-11-30 | 1993-11-29 | Key top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5325962A JP2535308B2 (en) | 1993-11-30 | 1993-11-29 | Key top |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12282986A Division JPS62279911A (en) | 1986-05-28 | 1986-05-28 | Manufacture of key top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06318418A JPH06318418A (en) | 1994-11-15 |
| JP2535308B2 true JP2535308B2 (en) | 1996-09-18 |
Family
ID=18182544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5325962A Expired - Lifetime JP2535308B2 (en) | 1993-11-30 | 1993-11-29 | Key top |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535308B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4109613B2 (en) * | 2003-11-21 | 2008-07-02 | 日精樹脂工業株式会社 | Translucent display and method for manufacturing the same |
| JP4638269B2 (en) * | 2005-04-19 | 2011-02-23 | 株式会社加西産業 | Molding method of resin product and molding apparatus used for molding method |
| JP5498034B2 (en) * | 2009-03-03 | 2014-05-21 | 忠頼 寺内 | Resin molded product manufacturing method, resin molded product, resin molded product unit |
| JP6385689B2 (en) * | 2014-03-05 | 2018-09-05 | 三菱重工サーマルシステムズ株式会社 | Display device and vehicle air conditioner to which the display device is applied |
| CN110828214A (en) * | 2018-08-08 | 2020-02-21 | 昶玮科技股份有限公司 | Double-layer plastic structure with character or figure surface and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166823U (en) * | 1984-10-08 | 1986-05-08 | ||
| JPS6251410A (en) * | 1985-08-31 | 1987-03-06 | Brother Ind Ltd | Molding of multi-color article and mold thereof |
| JPS62279911A (en) * | 1986-05-28 | 1987-12-04 | Alps Electric Co Ltd | Manufacture of key top |
| JP2950856B2 (en) * | 1989-07-13 | 1999-09-20 | 富士通株式会社 | First-in first-out memory configuration method |
| JP2896254B2 (en) * | 1991-04-22 | 1999-05-31 | 博 福場 | electric toothbrush |
-
1993
- 1993-11-29 JP JP5325962A patent/JP2535308B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06318418A (en) | 1994-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960416 |
|
| EXPY | Cancellation because of completion of term |