JP2003308155A - Synthetic resin molded article and method of manufacturing the same - Google Patents
Synthetic resin molded article and method of manufacturing the sameInfo
- Publication number
- JP2003308155A JP2003308155A JP2002116074A JP2002116074A JP2003308155A JP 2003308155 A JP2003308155 A JP 2003308155A JP 2002116074 A JP2002116074 A JP 2002116074A JP 2002116074 A JP2002116074 A JP 2002116074A JP 2003308155 A JP2003308155 A JP 2003308155A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- key button
- resin sheet
- resin molded
- key
- 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
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Input From Keyboards Or The Like (AREA)
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、電話器の押しキー
ボタン、パソコンのキーボードの操作キーボタン、電卓
の押しキーボタン等を一体化して製作する技術及びこれ
らのキーボタン類を筐体等の相手部品に挿入する時の挿
入性又は組込み性の向上に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for integrally manufacturing a push key button of a telephone, an operation key button of a keyboard of a personal computer, a push key button of a calculator, etc. The present invention relates to improvement of insertability or assembling ability when inserting into a mating component.
【０００２】[0002]
【従来の技術】電話器やパソコンのキーボード、電卓の
押しキーボタン等を筐体又は相手部品に組みつける場
合、各キーボタンを１個ずつ所定の位置に組みつけてい
た。これでは１台完成するのに時間がかかり生産性もよ
くない。2. Description of the Related Art When a telephone set, a keyboard of a personal computer, a push key button of a calculator, or the like is mounted on a housing or a counterpart component, each key button is mounted at a predetermined position. With this, it takes time to complete one unit and productivity is not good.
【０００３】また、キーボタンを可動ならしめるために
ヒンジ又はバネが必要になるがゴム又はエラストマー等
の弾性あるいは柔軟性を有する樹脂でヒンジ又はバネ部
とキーボタンを一体成形していた。Further, a hinge or a spring is required to make the key button movable, but the hinge or spring portion and the key button are integrally formed of a resin having elasticity or flexibility such as rubber or elastomer.
【０００４】しかしこれらは不透明又は半透明であるた
めキーボタン表面に数字、文字等の意匠を印刷しなけれ
ばならず、多数回のキーボタン操作によりこの意匠が摩
耗し恒久性がなくなる等の欠陥があった。However, since these are opaque or semi-transparent, it is necessary to print a design such as numbers and characters on the surface of the key button, and the design is worn out by many times of key button operation, and the design becomes non-permanent. was there.
【０００５】透明性を得るためにヒンジ部は上記ゴム等
で、ボタン部は透明合成樹脂で２色成形すればよく、こ
の場合ゴムの表面に印刷しておけば印刷の恒久性は得ら
れるものの高価な設備を要し、工程も倍加するためコス
ト高となる。In order to obtain transparency, the hinge portion may be made of the above rubber or the like, and the button portion may be formed by two-color molding with transparent synthetic resin. In this case, if printing is done on the surface of the rubber, the printing is permanent. Expensive equipment is required, and the number of processes is doubled, resulting in high cost.
【０００６】[0006]
【発明が解決しようとする課題】前記の如く、電話器等
の押しキーボタンを１ヶずつでなく、複数個又は必要数
全てを１度に筐体又は相手部品に組みつけることができ
れば、１台完成する時間が大幅に短縮され生産性も著し
く向上する。As described above, if not only one push-key button of a telephone set or the like but a plurality or required number of push-key buttons can be assembled in a housing or a mating part at one time, The time to complete the stand will be greatly shortened, and the productivity will be significantly improved.
【０００７】また、キーボタンは透明で硬度を有し、ヒ
ンジ部又はバネ部は弾性又は柔軟性を有するといった相
反する機能を要求されるがこれに応えることも必要であ
る。[0007] Further, the key button is required to have a contradictory function such as being transparent and having hardness, and the hinge portion or the spring portion having elasticity or flexibility, but it is also necessary to meet such requirements.
【０００８】[0008]
【課題を解決するための手段】本発明者等は上記課題を
解決すべく鋭意検討の結果、本発明に到達したものであ
る。The inventors of the present invention have reached the present invention as a result of extensive studies to solve the above problems.
【０００９】即ち、独立して上下動可能な、複数のキー
ボタンを一体に配したものでキーボタンの底面に意匠が
あって、各キーボタンが、打抜き可能な合成樹脂シート
で外周枠に連結された合成樹脂成形品において、該合成
樹脂シートに予め開穿した複数の穴を使用し、該合成樹
脂シートの裏面より表面に向けて溶融合成樹脂を射出成
形してなる合成樹脂成形品を製作することにより、前記
課題を解決することに成功したものである。合成樹脂シ
ートは打抜き可能であるため、弾性を有し、バネ又はヒ
ンジとして機能する。合成樹脂に透明な物を用いれば合
成樹脂シートに印刷しその上に該樹脂キーボタンが来る
ので印刷の恒久性が得られる。That is, a plurality of key buttons, which can be moved up and down independently, are arranged integrally, and there is a design on the bottom of the key buttons, and each key button is connected to the outer peripheral frame by a punchable synthetic resin sheet. In the synthetic resin molded product, a synthetic resin molded product is manufactured by using a plurality of holes pre-drilled in the synthetic resin sheet and injecting a molten synthetic resin from the back surface to the front surface of the synthetic resin sheet. By doing so, the above problems have been successfully solved. Since the synthetic resin sheet can be punched, it has elasticity and functions as a spring or a hinge. If a transparent synthetic resin is used, printing is done on the synthetic resin sheet and the resin key button is placed on the synthetic resin sheet, so that the printing is made permanent.
【００１０】[0010]
【発明の実施の形態】以下、本発明による合成樹脂成形
品及びその製造法について説明する。BEST MODE FOR CARRYING OUT THE INVENTION A synthetic resin molded article according to the present invention and a method for producing the same will be described below.
【００１１】独立して上下動可能な複数のキーボタンを
一体に配したもので、キーボタンの底面に意匠（絵柄、
文字等）があり、各キーボタンが打抜き可能な合成樹脂
シートで外周枠に連結された合成樹脂成形品を提供す
る。A plurality of key buttons that can be independently moved up and down are arranged integrally, and a design (design,
There is a character etc., and a synthetic resin molded product in which each key button can be punched and is connected to the outer peripheral frame by a synthetic resin sheet is provided.
【００１２】独立して上下動可能な複数のキーボタンを
一体に配したもので、キーボタンの底面に意匠があり、
各キーボタンが外周枠に連結されずに、各キーボタン同
士が１ヶ所又はそれ以上の個所で、打抜き可能な合成樹
脂シートで連結された合成樹脂成形品を提供する。[0012] A plurality of key buttons that can be moved up and down independently are arranged integrally, and there is a design on the bottom of the key buttons.
(EN) Provided is a synthetic resin molded product in which each key button is not connected to an outer peripheral frame, and each key button is connected at one or more places with a punchable synthetic resin sheet.
【００１３】独立して上下動可能な複数のキーボタンを
一体に配したもので、キーボタンの底面に意匠があり、
各キーボタンが打抜き可能な合成樹脂シートで外周枠に
連結され、且つ一部の又は全てのキーボタン同士が１ヶ
所以上で相互に前記打抜き可能な合成樹脂シートで連結
された合成樹脂成形品を提供する。A plurality of key buttons that can be moved up and down independently are arranged integrally, and there is a design on the bottom surface of the key buttons.
A synthetic resin molded product in which each key button is connected to the outer peripheral frame by a punchable synthetic resin sheet, and some or all of the key buttons are mutually connected at one or more locations with the punchable synthetic resin sheet. provide.
【００１４】独立して上下動可能な複数のキーボタンを
一体に配したもので、キーボタンの底面に意匠があり、
各キーボタンが打抜き可能な合成樹脂シートで外周枠に
連結され、又は外周枠に連結されずに各キーボタン同士
が１ヶ所又はそれ以上の個所で打抜き可能な合成樹脂シ
ートで相互に連結され、又は各キーボタンが打抜き可能
な合成樹脂シートで外周枠に連結され、且つ一部のキー
ボタン又は全てのキーボタン同士が１ヶ所又はそれ以上
の個所において前記打抜き可能な合成樹脂シートで相互
に連結された合成樹脂成形品において、印刷部のインキ
膜層の厚みが単層で４μ以上二層以上で８μ以上で、前
記打抜き可能な合成樹脂シートの厚みが０.２ｍｍ以上
１.０ｍｍ以下であるバックライティング可能な合成樹
脂成形品を提供する。A plurality of key buttons that can be moved up and down independently are arranged integrally, and there is a design on the bottom of the key button.
Each key button is connected to the outer peripheral frame with a punchable synthetic resin sheet, or each key button is connected to each other with one or more punchable synthetic resin sheets without being connected to the outer peripheral frame, Alternatively, each key button is connected to the outer frame with a punchable synthetic resin sheet, and some or all of the key buttons are connected to each other at one or more points with the punchable synthetic resin sheet. In the formed synthetic resin molded product, the thickness of the ink film layer in the printed portion is 4 μ or more in a single layer and 8 μ or more in two or more layers, and the thickness of the punchable synthetic resin sheet is 0.2 mm or more and 1.0 mm or less. We provide backlit synthetic resin moldings.
【００１５】通常各ボタンは絵柄や文字、数字等の絵柄
を有するが、前記各実施形態においてキーボタンが意匠
を有しない無色透明なもの又は絵柄を有せず単色印刷を
施したものであることを特長とする合成樹脂成形品を提
供する。Normally, each button has a pattern such as a pattern, letters, numbers, etc., but in each of the above-described embodiments, the key button is colorless and transparent without a design or is monochrome-printed without a pattern. We provide synthetic resin molded products that are characterized by.
【００１６】独立して上下動可能な複数のキーボタンを
一体に配したもので、キーボタンの底面に意匠があっ
て、各キーボタンが打抜き可能な合成樹脂シートで外周
枠に連結された合成樹脂成形品において該合成樹脂シー
トに予め開穿した複数の穴を使用し、該合成樹脂シート
の裏面より表面に向けて溶融合成樹脂を射出成形してな
る合成樹脂成形の製造法を提供する。A plurality of key buttons that can be moved up and down independently are arranged integrally, and there is a design on the bottom surface of each key button, and each key button is a synthetic resin sheet that can be punched and is connected to an outer frame. Provided is a synthetic resin molding manufacturing method, which comprises using a plurality of holes pre-drilled in a synthetic resin sheet in a resin molded product and injecting a molten synthetic resin from the rear surface of the synthetic resin sheet toward the front surface.
【００１７】ポリカーボネート等の打抜き可能な合成樹
脂シートは厚みが０.２ｍｍ以上１.０ｍｍ以下であるこ
とが必要である。０.２ｍｍより薄いと連結部がボタン
の重量に負け、全体として１個の物としての取り扱いが
困難になり、筐体に組みこむ時に長時間を要することと
なり組み込み性の向上、生産性の大幅な向上を期待しえ
ない。又バネとしての機能も低いものとなる。The punchable synthetic resin sheet such as polycarbonate must have a thickness of 0.2 mm or more and 1.0 mm or less. If the thickness is less than 0.2 mm, the connecting part loses the weight of the button, making it difficult to handle as a whole as a whole, and it takes a long time to assemble it into the housing, improving the assemblability and greatly improving the productivity. Can not be expected to improve. Also, the function as a spring becomes low.
【００１８】合成樹脂シートの厚みが１ｍｍを超えると
外周枠とキーボタンを継ぐ連結部をキーボタンが上下動
可能であるようにするために、巾２ｍｍ程度に形成する
が、その形成が困難となる。If the thickness of the synthetic resin sheet exceeds 1 mm, the connecting portion connecting the outer peripheral frame and the key button is formed to have a width of about 2 mm so that the key button can be moved up and down, but it is difficult to form it. Become.
【００１９】即ち、合成樹脂シートの厚みが１ｍｍ以上
で連結部の巾を例えば２ｍｍになるように打抜くのには
大きな困難を伴い、形崩れやバリの発生等で実質的に打
抜き不可能となる。That is, it is very difficult to punch a synthetic resin sheet with a thickness of 1 mm or more so that the width of the connecting portion is, for example, 2 mm, and it is practically impossible to punch it due to deformation and burrs. Become.
【００２０】また、バネ又はヒンジとしてみた場合、キ
ーボタンを押すのに大きな力を要する。キーボタンをバ
ックライティング可能とするためには単層で使用するイ
ンキ膜の厚みが４μ以上であり、二層以上で使用するイ
ンキ膜の厚みが８μ以上であることが必要であるが、そ
れぞれ４μ未満、８μ未満となればピンホールが発生し
バックライティングが困難となる。When viewed as a spring or a hinge, a large force is required to push the key button. In order to be able to backlight the key button, the thickness of the ink film used in a single layer must be 4μ or more, and the thickness of the ink film used in two or more layers must be 8μ or more. If it is less than 8 μm, a pinhole is generated, which makes backlighting difficult.
【００２１】（実施例１）厚み０.５ｍｍのポリカーボ
ネートシートから成る合成樹脂シート５に黒インキで０
から９までの数字から成る意匠６と２種の文字を印刷し
その上から背景色として白色印刷を行った。数字の大き
さは縦８ｍｍ巾２.５ｍｍで数字間の間隔は横方向に３
０ｍｍあり、横方向に３個の数字が並び、縦方向には４
つの数字と２種類の文字が各１ヶ並び、文字、数字の縦
方向の間隔は３０ｍｍであった。上記１２ヶの数字、文
字を１組とし、これが横７５ｍｍ縦１０５ｍｍのポリカ
シートに印刷されている（図２）が、元のポリカシート
の大きさは３８０ｍｍ×５３０ｍｍで、そこに前記１組
の文字、数字が２５組印刷されている。このポリカシー
トを各１組に打抜く（図２）が、この時同時に文字、数
字の中心から左上方向に１２ｍｍ離れた位置に直径４ｍ
ｍの穴を計１２ヶ開ける。Example 1 A synthetic resin sheet 5 made of a polycarbonate sheet having a thickness of 0.5 mm was black ink.
Design 6 consisting of the numbers 9 to 9 and two types of characters were printed, and white printing was performed on the design 6 as the background color. The size of the numbers is 8mm long and 2.5mm wide, and the space between numbers is 3 horizontally.
There is 0 mm, 3 numbers are arranged in the horizontal direction, and 4 in the vertical direction.
One number and two types of characters were arranged side by side, and the vertical spacing between the characters and numbers was 30 mm. The above 12 numbers and letters are set as a set, and this is printed on a polycarbonate sheet having a width of 75 mm and a length of 105 mm (FIG. 2). The original size of the polycarbonate sheet is 380 mm × 530 mm, and the set of the above-mentioned one Twenty-five sets of letters and numbers are printed. This polycarbonate sheet is punched into each set (Fig. 2), and at the same time, a diameter of 4 m is placed 12 mm away from the center of letters and numbers in the upper left direction.
Make a total of 12 holes of m.
【００２２】この各１組に打抜いたポリカシートの印刷
面を射出成形金型の固定型に挿入（図２に示すように射
出成形金型取付け穴８を使って挿入固定）し、金型を閉
じ前記４ｍｍφの射出成形ゲート用穴７を裏ゲートとし
て使用して前記ポリカシートの印刷面の反対面から印刷
面に向かって溶融ポリカーボネート樹脂を射出し冷却後
金型を開いて、ポリカシートとポリカーボネート樹脂と
が溶着した合成樹脂成形品を得た。射出されたポリカー
ボネート樹脂部は厚さ１ｍｍ、縦横が１６ｍｍの土台の
上に厚さ４ｍｍ直径１６ｍｍの円形のキーボタンを形成
していた。この合成樹脂成形品を巾２ｍｍの外周枠１
（図１）とポリカーボネート樹脂部とに打抜き金型を用
いて打抜くが、キーボタン３（図１）を形成するポリカ
ーボネート樹脂部と外周枠１との間を巾２ｍｍの１ヶ又
は２ヶの連結部２（図１）が残るように、又一部のキー
ボタン３（図１における意匠数字の５及び８のキーボタ
ン）は他のキーボタンと巾２ｍｍの１ヶ又は２ヶの連結
部でつながるようにして打抜いた。The printing surface of the polycarbonate sheet punched into each set is inserted into the fixed mold of the injection mold (inserted and fixed using the injection mold mounting holes 8 as shown in FIG. 2), and the molds are inserted. Closed and the 4 mmφ hole 7 for injection molding gate is used as a back gate to inject a molten polycarbonate resin from the opposite side of the printed surface of the polycarbonate sheet toward the printed surface, and after cooling, open the mold to open the polycarbonate sheet. A synthetic resin molded product having a polycarbonate resin welded thereto was obtained. The injected polycarbonate resin part had a circular key button with a thickness of 4 mm and a diameter of 16 mm formed on a base having a thickness of 1 mm and a length and width of 16 mm. This synthetic resin molded product is used as an outer peripheral frame 1 having a width of 2 mm.
(FIG. 1) and the polycarbonate resin portion are punched using a punching die, but one or two pieces having a width of 2 mm are provided between the polycarbonate resin portion forming the key button 3 (FIG. 1) and the outer peripheral frame 1. In order to leave the connecting portion 2 (FIG. 1), some of the key buttons 3 (key buttons of design numbers 5 and 8 in FIG. 1) are connected to other key buttons with one or two connecting portions having a width of 2 mm. I punched them so that they would be connected with each other.
【００２３】こうして作製した合成樹脂成形品は数字、
文字の各キーボタン３が独立して上下に作動するもので
あり１２ヶのキーボタン３が全体として連結されていて
１ヶ又は1組のものとして取扱うことができ、これを筐
体に組みこんだところ２秒で組みこむことができた。The synthetic resin moldings produced in this way are numbers,
Each key button 3 of the character operates independently up and down, and 12 key buttons 3 are connected as a whole and can be handled as one or one set, and it can be assembled in the housing. But I was able to assemble in 2 seconds.
【００２４】これに対し、従来品のように１２ヶのキー
ボタン３をバラバラにし各１ヶずつ筐体に組みこんだと
ころ１０.５秒を要した。On the other hand, when the 12 key buttons 3 were disassembled as in the conventional product and each one was assembled into the housing, it took 10.5 seconds.
【００２５】（実施例２）実施例１においてポリカーボ
ネートシートに印刷する数字、文字及び背景色をスクリ
ーン印刷法で印刷した。Example 2 The numbers, characters and background color to be printed on the polycarbonate sheet in Example 1 were printed by the screen printing method.
【００２６】また、背景色として数字、文字を抜いたイ
ンキ層を黒色で印刷し、これを２回繰返して印刷したイ
ンキ膜層の厚みは１５μであった。The ink layer with the numbers and letters removed as the background color was printed in black, and the ink film layer printed by repeating this process twice had a thickness of 15 μm.
【００２７】また、文字，数字を赤インキで印刷し、そ
のインキ膜層は７μであった。Characters and numbers were printed with red ink, and the ink film layer was 7 μm.
【００２８】このようにして印刷したポリカシートを実
施例１と同様に処理し、製作した合成樹脂成形品を筐体
に組みこみバックライティングしたところ、ピンホール
による光のもれもなく黒の中に鮮やかな赤の数字、文字
が浮び上り美麗な外観を呈した。The thus-printed polycarbonate sheet was treated in the same manner as in Example 1, and the synthetic resin molded product produced was incorporated into a housing and backlit. The bright red numbers and letters emerged to give a beautiful appearance.
【００２９】（実施例３）実施例１において１２ヶのキ
ーボタンを１組とし、４組の合成樹脂成形品が得られる
ように金型に４組のキャビティを設け同時に４組の射出
成形を行ない４組の合成樹脂成形品を得た。これらを筐
体に組み込んだがその時間は２.２秒であった。(Embodiment 3) In Embodiment 1, with 12 key buttons as 1 set, 4 sets of cavities are provided in the mold so that 4 sets of synthetic resin molded products can be obtained, and 4 sets of injection molding are performed at the same time. Four sets of synthetic resin moldings were obtained. These were built into the case, but the time was 2.2 seconds.
【００３０】[0030]
【発明の効果】（１）生産性の向上
電話器等に組みこむ１セットのキーボタン類を一度に
多数セット作ることができる。
１セットのキーボタン類を筐体に組み込むのに短時間
で組みこむことができ、生産性を大幅に向上させる。EFFECTS OF THE INVENTION (1) Improvement of productivity It is possible to make a large number of one set of key buttons to be incorporated in a telephone set or the like at one time. One set of key buttons can be installed in the housing in a short time, greatly improving productivity.
【００３１】（２）コストの低減
上記（１）にある如く生産性の向上は製造及び組み込み
コストの著しい低減をもたらす。又バネ又はヒンジ部と
キーボタン部とを一度に生産できるため大幅なコスト低
減が可能となる。(2) Reduction in cost As described in (1) above, the improvement in productivity brings about a significant reduction in manufacturing and assembling costs. Further, since the spring or hinge portion and the key button portion can be manufactured at the same time, it is possible to significantly reduce the cost.
【００３２】（３）外観の美麗性
印刷膜厚を所定以上とした絵柄を有するキーボタン類を
バックライティングしたものについては、漏光もなく美
麗な外観を呈した。(3) Appearance of the appearance The backlit key buttons having a pattern having a print film thickness of a predetermined value or more exhibited a beautiful appearance without light leakage.
【図１】 本発明による合成樹脂成形品の斜視図であ
る。FIG. 1 is a perspective view of a synthetic resin molded product according to the present invention.
【図２】 本発明による印刷を施し穴をあけた合成樹脂
シートの表面図である。FIG. 2 is a front view of a synthetic resin sheet having a hole formed by printing according to the present invention.
１…外周枠 ５…合成樹脂シート
２…連結部 ６…意匠
３…キーボタン ７…射出成形ゲート用穴（１２
ヶ）
４…意匠 ８…射出成形金型取付け穴DESCRIPTION OF SYMBOLS 1 ... Peripheral frame 5 ... Synthetic resin sheet 2 ... Connection part 6 ... Design 3 ... Key button 7 ... Injection molding gate hole (12
4) Design 8 ... Injection molding die mounting hole
Claims (6)
を一体に配したもので、キーボタンの底面に意匠があり
各キーボタンが外周枠に、打抜き可能な合成樹脂シート
で連結された合成樹脂成形品。1. A plurality of key buttons which can be independently moved up and down are integrally arranged, each key button has a design, and each key button is connected to an outer peripheral frame by a punchable synthetic resin sheet. Synthetic resin molded product.
を一体に配したものでキーボタンの底面に意匠があり、
各キーボタンが外周枠に連結されずに各キーボタン同士
が１ヶ所又はそれ以上の個所で、打抜き可能な合成樹脂
シートで連結された合成樹脂成形品。2. A plurality of key buttons which can be independently moved up and down are arranged integrally, and there is a design on the bottom surface of the key button,
A synthetic resin molded product in which each key button is not connected to the outer peripheral frame, but each key button is connected at one or more locations with a punchable synthetic resin sheet.
を一体に配したものでキーボタンの底面に意匠があり各
キーボタンが、打抜き可能な合成樹脂シートで外周枠に
連結され、且つ一部の又は全てのキーボタン同士が１ヶ
所又はそれ以上で前記打抜き可能な合成樹脂シートで相
互に連結された合成樹脂成形品。3. A plurality of key buttons which can be independently moved up and down are integrally arranged, each key button has a design, and each key button is connected to an outer peripheral frame by a punchable synthetic resin sheet, and A synthetic resin molded product in which some or all of the key buttons are mutually connected at one or more locations with the punchable synthetic resin sheet.
厚みが単層で４μ以上二層以上で８μ以上で、打抜き可
能な合成樹脂シートの厚みが０.２ｍｍ以上１.０ｍｍ以
下のバックライティング可能である合成樹脂成形品。4. The ink film layer according to claim 1, 2 or 3, wherein the thickness of the ink film layer is 4 μ or more in a single layer and 8 μ or more in two layers or more, and the thickness of the punchable synthetic resin sheet is 0.2 mm or more and 1.0 mm or less. A synthetic resin molded product that can be backlit.
ボタンが意匠を有しない無色透明なもの又は単色印刷を
有するものであることを特長とする合成樹脂成形品。5. A synthetic resin molded product, characterized in that each key button in claim 1, 2, 3, or 4 is colorless and transparent without a design or has a single-color printing.
ンを一体に配したものでキーボタンの底面に意匠があっ
て各キーボタンが、打抜き可能な合成樹脂シートで外周
枠に連結された合成樹脂成形品において、該合成樹脂シ
ートに予め開穿した複数の穴を使用し、該合成樹脂シー
トの裏面より表面に向けて溶融合成樹脂を射出成形して
なる合成樹脂成形品の製造法。6. A plurality of key buttons, which can be moved up and down independently, are arranged integrally, and each key button has a design on the bottom surface of the key button, and each key button is connected to an outer peripheral frame by a punchable synthetic resin sheet. In the synthetic resin molded article, a method for producing a synthetic resin molded article, which comprises using a plurality of pre-drilled holes in the synthetic resin sheet and injecting a molten synthetic resin from the back surface to the front surface of the synthetic resin sheet. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002116074A JP3906421B2 (en) | 2002-04-18 | 2002-04-18 | Manufacturing method of synthetic resin molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002116074A JP3906421B2 (en) | 2002-04-18 | 2002-04-18 | Manufacturing method of synthetic resin molded products |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006284481A Division JP4013230B2 (en) | 2006-10-19 | 2006-10-19 | Synthetic resin molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003308155A true JP2003308155A (en) | 2003-10-31 |
| JP3906421B2 JP3906421B2 (en) | 2007-04-18 |
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ID=29397055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002116074A Expired - Lifetime JP3906421B2 (en) | 2002-04-18 | 2002-04-18 | Manufacturing method of synthetic resin molded products |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008080346A1 (en) * | 2006-12-31 | 2008-07-10 | Byd Company Limited | Light guide key plate and method for manufacturing the same |
-
2002
- 2002-04-18 JP JP2002116074A patent/JP3906421B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008080346A1 (en) * | 2006-12-31 | 2008-07-10 | Byd Company Limited | Light guide key plate and method for manufacturing the same |
| KR101050604B1 (en) | 2006-12-31 | 2011-07-19 | 비와이디 컴퍼니 리미티드 | Optical guide key plate and manufacturing method thereof |
| US8212169B2 (en) | 2006-12-31 | 2012-07-03 | BYD Company Ltd. | Light guide plate, light guide key plate and method for manufacturing the light guide key plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3906421B2 (en) | 2007-04-18 |
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