JPS62279911A - Manufacture of key top - Google Patents
Manufacture of key topInfo
- Publication number
- JPS62279911A JPS62279911A JP12282986A JP12282986A JPS62279911A JP S62279911 A JPS62279911 A JP S62279911A JP 12282986 A JP12282986 A JP 12282986A JP 12282986 A JP12282986 A JP 12282986A JP S62279911 A JPS62279911 A JP S62279911A
- Authority
- JP
- Japan
- Prior art keywords
- display
- mold
- casting
- closing
- slide pin
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000002834 transmittance Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 abstract 6
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
-
- 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
- B29C2045/1681—Making multilayered or multicoloured articles one layer penetrating at one or more areas through another layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0025—Opaque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- 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)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
３発明の詳細な説明
〔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の製造方法に関し、特に表示部
を照光させるキートップの製造方法に関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method of manufacturing key tops used in various input devices such as car stereos and car radios, and in particular, relates to a method for manufacturing key tops used in various input devices such as car stereos and car radios, and in particular, The present invention relates to a method of manufacturing a key top.
キートップの文字などの表示部を成形する方法さしては
、一般にいわゆる二色成形法が用いられている。A so-called two-color molding method is generally used as a method for molding display parts such as characters on key tops.
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残す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 in which a display member including a display part is molded, and then an external member is integrally molded onto the display member, leaving only the top surface of the display part on the surface thereof.
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 for key tops will be explained with reference to FIGS. 4 and 5.
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 molded on the display member of FIG. Reference numeral 1 denotes a display member made of synthetic resin, and a display portion 2 is formed on the upper surface of the display member 1 so as to protrude therefrom. Next, the key top 7 is formed by integrally molding the external member 6 so as to expose the top surface of the display section 2 to the outside of the display member 1.
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ｌ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 part 2 has a closing part 3 surrounded by the numbers "0" and "4#," a slide pin (see Fig. After forming the groove 4 with (not shown) and pulling out the slide pin,
The key top 7 was formed by integrally molding the outer member 6 on the display member 1 while injecting the resin of the outer member 6 into the closing portion 3 through the groove 4.
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 section 2 is made transparent or translucent and only the display section 2 is illuminated, and when the display section 2 has the closing section 3, the light transmittance is lower than that of the display section 2. Since the small external member 6 is molded in the groove 4 below the display section 2, that part becomes a shadow 5 that is visible to the naked eye, and there is a problem that the display section 2 cannot be uniformly illuminated.
本発明は、表示部と台部を有する表示部材上に外形部材
を一体に成形し、表示部材は外形部材よりも光透過度の
昼い衛脂で成形して表示部を照光させるようにしたキー
トップの製造方法において、金型中にスライドピンを介
在させて表示部の閉鎖部とこの閉鎖部の外側におのおの
孔を形成すると共に、これらの孔の間に台部の厚みより
大きい突出部を形成して表示部材を成形する工程と、ス
ライドピンを下降させて外形部材を孔を介して閉鎖部に
樹脂を注入しながら表示部材上に一体に成形する工程と
、表示部材の突出部を切断する工程とからなるキートッ
プの製造方法である。In the present invention, an external member is integrally molded on a display member having a display part and a base part, and the display member is molded with a sanitary resin having a lower light transmittance than the external member, so that the display part is illuminated. In a method for manufacturing a key top, a slide pin is interposed in a mold to form a closing part of the display part and a hole on the outside of this closing part, and a protruding part larger than the thickness of the base part is formed between these holes. a step of lowering the slide pin and injecting resin into the closing part through the hole while integrally molding the outer shape member on the display member; and a step of molding the protruding part of the display member. This is a method of manufacturing a key top, which includes a step of cutting.
表示部の閉鎖部とこの閉鎖部の外側におのおの形成され
た孔から樹脂を注入することにより表示部の閉鎖部に外
形部材を注入、成形し、かつ、これらの孔の間に形成さ
れた表示部材の突出部を切断することにより突出部下方
に一体に成形された外形部材を除去する。A display formed by injecting and molding an external member into the closing part of the display part by injecting resin through holes formed in the closing part of the display part and the outside of this closing part, respectively, and forming between these holes. By cutting the protrusion of the member, the external member integrally molded below the protrusion is removed.
以下、本発明に係るキートップの製造方法を図面を基に
して説明する。Hereinafter, a method for manufacturing a key top according to the present invention will be explained based on the drawings.
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、ｔｇ３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。Figure 1 is a sectional view of the main parts showing the mold for the display member, Figure 2 is a perspective view showing the position of the slide pin in Figure 1, and Figure 3 is an integral molding of the external member on the display member in Figure 1. FIG.
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
、】５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
１！１１におのおの孔１８、】９を設ける。孔１８．１
９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, transparent resin is injected from the injection port 8, and the display part 11 and the base part 12 are molded using the molds 9 and 10, thereby forming the display member 13. At this time, as shown in Fig. 2, the protrusion 14
, ]5 are interposed in the mold 9 and 10, and holes 18 and ]9 are provided in the closing portion 17 of the display portion 11 and the outside 1!11 of the closing portion 17, respectively. Hole 18.1
A protrusion 20 is formed between the base portions 9 and 9, and the protrusion 20 is made larger by a dimension d depending on the thickness of the base portion 12. The slide pin 16 is vertically movable.
次に、第３図のように金型１０を金型２１ｉこ交換して
、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
も下動させて不透明樹脂を表示部１１の閉鎖部１７に注
入し成形する。Next, the mold 10 is replaced with a mold 21i as shown in FIG. The external member 23 is molded by injecting resin. At this time, slide pin 16
is moved downward to inject the opaque resin into the closing part 17 of the display part 11 and mold it.
即ち、スライドピン１６の突部１４．１５を表示部材１
３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
た外形部材（不透明樹脂）も−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 are connected to the display member 1.
By moving the display member 13 downward to a position lower than the protrusion 20 of No. 3, a gap is formed between the protrusion 20 of the display member 13 and the slide pin 16, and the opaque resin is passed from the hole 18 to the hole 19 to close the closed portion of the display portion 11. Inject into 17. After that, the platform 12
The key top 7 is formed by cutting the protrusion 20 using an automatic machine (cutter) or the like on the extension line of the bottom surface or at the section A-A in FIG. At this time, the external member (opaque resin) integrally molded below the protrusion 20 is also cut and removed, so even if the key tops 7 are illuminated from the back, the external member 23 will not appear on the display section 11. A uniform display can be obtained without shadows being projected.
〔発明の効果〕
以上のように本発明のキートップの製造方法によれば、
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ｔｘえるキートップを得ることができ
る。[Effects of the Invention] As described above, according to the key top manufacturing method of the present invention,
Even if the display member is a key top that illuminates the display part by having a higher light transmittance than the outer member, and the display part has a closed part, the shadow of the outer member is not projected on the display part, resulting in a uniform display. You can obtain key tops with rows of tx.
第１図は本発明の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、第４図は従来の表示部材を示す斜
視図、第５図は従来のキートップを示す斜視図である。
８・・・注入口
９、ｌＯ・・・金型
１１・・・表示部
１２・・・台部
１３・・・表示部材
１４．１５・・・突部
１６・・・スライドビン
１７・・・閉鎖部
１８．１９・・・孔
２０・・・突出部
２１・・・金型
２２・・・天面
２３・・・外形部材
第 １ 図FIG. 1 is a sectional view of a main part showing a mold for a display member of the present invention, FIG. 2 is a perspective view showing the position of the slide pin in FIG. 1, and FIG.
The figure is a sectional view of a main part showing a mold for integrally molding an external member on the display member shown in Fig. 1, Fig. 4 is a perspective view showing a conventional display member, and Fig. 5 is a perspective view showing a conventional key top. It is a diagram. 8... Inlet 9, lO... Mold 11... Display section 12... Stand section 13... Display member 14.15... Protrusion 16... Slide bin 17... Closing part 18, 19... Hole 20... Projecting part 21... Mold 22... Top surface 23... External member Fig. 1
Claims (1)
形し、表示部材は外形部材よりも光透過度の高い樹脂で
成形して表示部を照光させるようにしたキートップの製
造方法において、金型中にスライドピンを介在させて表
示部の閉鎖部とこの閉鎖部の外側におのおの孔を形成す
ると共に、これらの孔の間に台部の厚みより大きい突出
部を形成して表示部材を成形する工程と、スライドピン
を下降させて外形部材を孔を介して閉鎖部に樹脂を注入
しながら表示部材上に一体に成形する工程と、表示部材
の突出部を切断する工程とからなるキートップの製造方
法。In a method for manufacturing a key top, in which an external member is integrally molded on a display member having a display part and a base part, and the display member is molded with a resin having higher light transmittance than the external member, so that the display part is illuminated. A slide pin is interposed in the mold to form a closing part of the display part and a hole on the outside of this closing part, and a protruding part larger than the thickness of the base part is formed between these holes to form a display member. a process of lowering the slide pin to inject resin into the closing part through the hole while integrally molding the external member onto the display member, and a process of cutting the protruding part of the display member. Keycap manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12282986A JPS62279911A (en) | 1986-05-28 | 1986-05-28 | Manufacture of key top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12282986A JPS62279911A (en) | 1986-05-28 | 1986-05-28 | Manufacture of key top |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5325962A Division JP2535308B2 (en) | 1993-11-30 | 1993-11-29 | Key top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62279911A true JPS62279911A (en) | 1987-12-04 |
| JPH053807B2 JPH053807B2 (en) | 1993-01-18 |
Family
ID=14845669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12282986A Granted JPS62279911A (en) | 1986-05-28 | 1986-05-28 | Manufacture of key top |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62279911A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243018A (en) * | 1989-06-10 | 1990-02-13 | Nissei Plastics Ind Co | Composite injection molding |
| JPH02208025A (en) * | 1989-02-07 | 1990-08-17 | Taisei Plus Kk | Operating key and manufacture thereof |
| JPH02279318A (en) * | 1989-04-21 | 1990-11-15 | Daiwa Giken Kogyo Kk | Mold device for synthetic resin molded product and its manufacture |
| JPH03208616A (en) * | 1990-01-12 | 1991-09-11 | Hissei Jitsugyo Yugenkoshi | Manufacture of casing for push- button switch using display housing with display cavity and casing for push-button switch manufactured using said casing manufacturing method |
| JPH06318418A (en) * | 1993-11-30 | 1994-11-15 | Alps Electric Co Ltd | Key top and manufacture thereof |
| JP2005153216A (en) * | 2003-11-21 | 2005-06-16 | Toyoda Gosei Co Ltd | Light pervious display body and its manufacturing method |
| EP1750290A1 (en) * | 2005-08-04 | 2007-02-07 | Silitech Technology Corp. | Key module and manufacturing method thereof |
| KR102369965B1 (en) * | 2020-12-24 | 2022-03-03 | 주식회사 수인산업 | Manufacturing Method of Flood Light Button using Double Injection Molding and The Button |
| KR102369964B1 (en) * | 2020-12-24 | 2022-03-03 | 주식회사 수인산업 | Manufacturing Method of Button using Double Injection Molding and The Button |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166823U (en) * | 1984-10-08 | 1986-05-08 | ||
| JPH0344886A (en) * | 1989-07-13 | 1991-02-26 | Fujitsu Ltd | Fast-in fast-out memory constituting system |
-
1986
- 1986-05-28 JP JP12282986A patent/JPS62279911A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166823U (en) * | 1984-10-08 | 1986-05-08 | ||
| JPH0344886A (en) * | 1989-07-13 | 1991-02-26 | Fujitsu Ltd | Fast-in fast-out memory constituting system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02208025A (en) * | 1989-02-07 | 1990-08-17 | Taisei Plus Kk | Operating key and manufacture thereof |
| JPH02279318A (en) * | 1989-04-21 | 1990-11-15 | Daiwa Giken Kogyo Kk | Mold device for synthetic resin molded product and its manufacture |
| JPH0688285B2 (en) * | 1989-04-21 | 1994-11-09 | 大和技研工業株式会社 | Method for manufacturing heat insulating member made of synthetic resin |
| JPH0243018A (en) * | 1989-06-10 | 1990-02-13 | Nissei Plastics Ind Co | Composite injection molding |
| JPH03208616A (en) * | 1990-01-12 | 1991-09-11 | Hissei Jitsugyo Yugenkoshi | Manufacture of casing for push- button switch using display housing with display cavity and casing for push-button switch manufactured using said casing manufacturing method |
| JPH06318418A (en) * | 1993-11-30 | 1994-11-15 | Alps Electric Co Ltd | Key top and manufacture thereof |
| JP2005153216A (en) * | 2003-11-21 | 2005-06-16 | Toyoda Gosei Co Ltd | Light pervious display body and its manufacturing method |
| EP1750290A1 (en) * | 2005-08-04 | 2007-02-07 | Silitech Technology Corp. | Key module and manufacturing method thereof |
| KR102369965B1 (en) * | 2020-12-24 | 2022-03-03 | 주식회사 수인산업 | Manufacturing Method of Flood Light Button using Double Injection Molding and The Button |
| KR102369964B1 (en) * | 2020-12-24 | 2022-03-03 | 주식회사 수인산업 | Manufacturing Method of Button using Double Injection Molding and The Button |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH053807B2 (en) | 1993-01-18 |
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| LAPS | Cancellation because of no payment of annual fees |