JP3972311B2 - Metal-tone synthetic resin ring and manufacturing method thereof - Google Patents
Metal-tone synthetic resin ring and manufacturing method thereof Download PDFInfo
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- JP3972311B2 JP3972311B2 JP2004378484A JP2004378484A JP3972311B2 JP 3972311 B2 JP3972311 B2 JP 3972311B2 JP 2004378484 A JP2004378484 A JP 2004378484A JP 2004378484 A JP2004378484 A JP 2004378484A JP 3972311 B2 JP3972311 B2 JP 3972311B2
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- 229920003002 synthetic resin Polymers 0.000 title claims description 62
- 239000000057 synthetic resin Substances 0.000 title claims description 62
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229920005989 resin Polymers 0.000 claims description 130
- 239000011347 resin Substances 0.000 claims description 130
- 230000005540 biological transmission Effects 0.000 claims description 54
- 239000002184 metal Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 30
- 239000010409 thin film Substances 0.000 claims description 20
- 238000005286 illumination Methods 0.000 claims description 16
- 238000007639 printing Methods 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000009966 trimming Methods 0.000 claims description 5
- 238000007650 screen-printing Methods 0.000 claims description 4
- 238000004040 coloring Methods 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 15
- 208000015943 Coeliac disease Diseases 0.000 description 11
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000007666 vacuum forming Methods 0.000 description 5
- 238000005034 decoration Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- 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
- B29C45/1459—Coating annular 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
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- 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
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- 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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14188—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 the inserts being deformed or preformed, e.g. by the injection pressure trimming the article in the mould
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Instrument Panels (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
本発明は、昼間又はバックライティングしないときは全面金属調を呈し、夜間にバックライティングしたときは天面幅方向の中央部分が光って見えるようにした部分的に透過照明可能な金属調合成樹脂リング及びその製造方法並びに射出成形金型に関する。 The present invention is a metal-tone synthetic resin ring capable of partially transmitting illumination in which a central portion in the width direction of the top surface is shined when it is backlit at night or when it is backlit at night. And a manufacturing method thereof and an injection mold.
自動車の計器板におけるスピードメータ、タコメータ或いは温度ゲージ等の周囲を装飾するために設けられる合成樹脂リングは、従来から次のような製造方法によって作製されていた。 A synthetic resin ring provided for decorating the periphery of a speedometer, a tachometer, a temperature gauge or the like in an automobile instrument panel has been conventionally manufactured by the following manufacturing method.
即ち、上記の合成樹脂リングを製造する方式として、無色透明な合成樹脂シート又はフィルムに金属箔の転写、金属の蒸着、又はスパッタリング等によって光線を透過可能とする金属薄膜を形成し、その裏側から天面幅方向の中央に沿う部分を除く箇所にスクリーン印刷で黒色印刷を施し、これを真空成形等で断面門型（コ字形を門型に倒立したような断面形状）をなすリング状に賦形加工してトリミングする方法があった。 That is, as a method of manufacturing the above synthetic resin ring, a metal thin film capable of transmitting light is formed on a colorless transparent synthetic resin sheet or film by transferring metal foil, vapor deposition of metal, or sputtering, and from the back side. Black printing is performed by screen printing at locations other than the portion along the center in the width direction of the top surface, and this is applied to a ring shape that forms a cross-sectional gate shape (cross-sectional shape in which the U-shape is inverted to the gate shape) by vacuum forming or the like. There was a method of shaping and trimming.
上記の方法によって得られる断面門型の合成樹脂リングは、夜間にバックライティングを行ったときには、リング状の天面にあるスリット部から光が透過して明るく見える。ところが、昼間、バックライティングしないときは、リング状の全面、即ち天面と側面は金属調に見えるが、リング状の天面において黒色印刷が施されていない円形のスリット部と黒色印刷部との境界が僅かに段差になるため、リング状の天面が完全フラットに見えず、見映えが低下するという欠点があった。 The cross-section gate-shaped synthetic resin ring obtained by the above method looks bright when light is transmitted from the slit portion on the ring-shaped top surface when backlighting is performed at night. However, when there is no backlighting in the daytime, the ring-shaped entire surface, that is, the top surface and the side surface, appears to be metallic, but the ring-shaped top surface is not black-printed with a circular slit portion and a black printed portion. Since the boundary is slightly stepped, the ring-shaped top surface does not look completely flat, and there is a drawback that the appearance is lowered.
また、上記のように合成樹脂シートを断面門型に絞り加工する際に生じるずれにより、スリット部が真円にならず、バックライティングしたとき、光を発するリング状のスリット部が歪んで見えるという問題があった。さらに、合成樹脂シートの真空成形等による賦形加工のため、断面門型形状の角部がシャープにならず、見映えが低下し、商品価値が低下するという欠点があった。 In addition, due to the displacement that occurs when the synthetic resin sheet is drawn into a cross-sectional gate shape as described above, the slit portion does not become a perfect circle, and the ring-shaped slit portion that emits light appears to be distorted when backlit. There was a problem. Furthermore, since the synthetic resin sheet is shaped by vacuum forming or the like, the corners of the cross-sectional gate shape are not sharp, the appearance is lowered, and the commercial value is lowered.
また、合成樹脂リングを形成する他の方式として、上記のように金属薄膜を施した合成樹脂シートを黒色印刷していないスリット部が天面となるように断面門型のリング状に賦形加工してトリミングしてなる透過リングを射出成形金型に挿入することにより二色成形する方法がある。 In addition, as another method of forming a synthetic resin ring, the synthetic resin sheet with a metal thin film as described above is shaped into a ring shape with a gate-shaped cross section so that the slit part that is not black-printed becomes the top surface There is a method of two-color molding by inserting a trimmed transmission ring into an injection mold.
このような二色成形方法には、下記のように１ゲート方式と２ゲート方式とがある。二色成形の１ゲート方式は、図７(a)〜(c)（図７(c)は透明樹脂部57と黒色樹脂部52のみの平面状況を断面で示したものであり、図７(c)のA−A線部位の断面に透過リング55を含めた断面を図７(a)に示し、B−B線部位の断面に透過リング55を含めた断面を図７(b)に示す）において、図７(a)及び(b)に示すように、合成樹脂シート54を断面門型のリング状に形成すると共に透過照明可能な金属薄膜53を施してなる透過リング55を金型56内に装着し、透過リング55の内側中央に沿って透明樹脂による透明樹脂部57を形成した後、その透明樹脂部57の内側と外側のいずれかの側に設けられたゲート58から黒色樹脂51を射出することによって透明樹脂部57の両側に黒色樹脂部52、52を形成するようにしたものである。 Such a two-color molding method includes a one-gate method and a two-gate method as described below. The two-color molding one-gate method is shown in FIGS. 7 (a) to 7 (c) (FIG. 7 (c) shows a plan view of only the transparent resin portion 57 and the black resin portion 52 in section. FIG. 7 (a) shows a cross section including the transmission ring 55 in the cross section of the line AA in FIG. 7C, and FIG. 7 (b) shows a cross section including the transmission ring 55 in the cross section of the line BB. 7 (a) and 7 (b), a transmissive ring 55 is formed by forming a synthetic resin sheet 54 into a ring shape with a gate-shaped cross section and a metal thin film 53 capable of illuminating transmission. After the transparent resin portion 57 is formed by the transparent resin along the inner center of the transmission ring 55, the black resin 51 is supplied from the gate 58 provided on either the inner side or the outer side of the transparent resin portion 57. The black resin portions 52, 52 are formed on both sides of the transparent resin portion 57 by injecting the.
ところが、このような二色成形の１ゲート方式によると、ゲート58を設けた反対側に黒色樹脂51を流入するための連絡部59が必要であり、完成した合成樹脂リング60にゲート51と同じ個数の黒色樹脂51による連絡部59が形成される。従って、この合成樹脂リング60にバックライティングしたとき、透明樹脂部57の上方へ透過して見えるリング状の透過光の中に上記の連絡部59が影になって見えるため、見映えが低下するという欠点があった。さらに、図７(a)において、黒色樹脂51の流入圧力が左右において異なるため、透明樹脂部57が圧力の弱い方に押されて傾き、真円が出なくなるという問題があった。 However, according to such a two-color molded one-gate method, the connecting portion 59 for flowing the black resin 51 into the opposite side where the gate 58 is provided is necessary, and the completed synthetic resin ring 60 is the same as the gate 51. Connection portions 59 are formed by the number of black resins 51. Accordingly, when the synthetic resin ring 60 is backlit, the connecting portion 59 appears to be shaded in the ring-shaped transmitted light that is visible above the transparent resin portion 57, so that the appearance is degraded. There was a drawback. Further, in FIG. 7 (a), since the inflow pressure of the black resin 51 is different on the left and right, there is a problem that the transparent resin portion 57 is pushed and tilted to the side where the pressure is weak, and a perfect circle is not generated.
また、二色成形方法の２ゲート方式には、図８に示す方法と、図９に示す方法がある。図８に示す２ゲート方式は、図８(a)に示すように、金型56内に上記の透過リング55を装着した後、透過リング55の内側に固定側金型56ａから突出するコア61を挿入し、このコア61の両側底部に設けられたゲート58、58から黒色樹脂51を射出することによってコア61の両側に黒色樹脂部52、52を形成した後、図８(b)に示すように、両側の黒色樹脂部52、52の内側空間に固定側金型56ａのゲート62から透明樹脂63を射出することによって両側の黒色樹脂部52、52の間に透明樹脂部57を形成する。 Further, the two-gate forming method of the two-color molding method includes a method shown in FIG. 8 and a method shown in FIG. In the two-gate method shown in FIG. 8, as shown in FIG. 8A, after the transmission ring 55 is mounted in the mold 56, the core 61 protrudes from the fixed mold 56a inside the transmission ring 55. 8 is formed, and the black resin portions 52 and 52 are formed on both sides of the core 61 by injecting the black resin 51 from the gates 58 and 58 provided on the bottom portions on both sides of the core 61. Then, as shown in FIG. Thus, the transparent resin part 57 is formed between the black resin parts 52, 52 on both sides by injecting the transparent resin 63 from the gate 62 of the fixed mold 56a into the inner space of the black resin parts 52, 52 on both sides. .
ところで、この図８に示す二色成形の２ゲート方式によると、完成した合成樹脂リング60を表面から見たとき、合成樹脂リング60の天面中央に沿って見える透明樹脂部57にゲート62のゲート跡が見えるため、外観を損なうという問題があった。 By the way, according to the two-color molding two-gate method shown in FIG. 8, when the completed synthetic resin ring 60 is viewed from the surface, the transparent resin portion 57 that is visible along the center of the top surface of the synthetic resin ring 60 is connected to the gate 62. There was a problem that the appearance of the gate was damaged because the gate trace was visible.
また、図９に示す二色成形の２ゲート方式は、図９(a)に示すように、金型56内に上記の透過リング55を装着した後、コア61の中央に形成された空間64の底部にゲート62を有する固定側金型56aを挿入して該ゲート62から透明樹脂63を射出し、冷却後に固定側金型56ａを除去することによって、透過リング55の内側中央に、図９(b)に示すように透明樹脂部57を成形する。次いで、図９(c)に示すように、透明樹脂部57の両側にゲート58、58を有する固定側金型56ａのゲート58、58から黒色樹脂51を射出することによって、透明樹脂部57の両側に黒色樹脂部52、52を形成するようにしたものである。 The two-color molding two-gate method shown in FIG. 9 is a space 64 formed in the center of the core 61 after the transmission ring 55 is mounted in the mold 56 as shown in FIG. 9 is inserted into the center of the transmission ring 55 by inserting a fixed mold 56a having a gate 62 into the bottom of the mold, injecting a transparent resin 63 from the gate 62, and removing the fixed mold 56a after cooling. The transparent resin portion 57 is molded as shown in (b). Next, as shown in FIG. 9 (c), by injecting the black resin 51 from the gates 58, 58 of the fixed side mold 56a having the gates 58, 58 on both sides of the transparent resin part 57, the transparent resin part 57 Black resin portions 52 and 52 are formed on both sides.
ところが、この二色成形の２ゲート方式においても、透明樹脂部57の底部にゲート62のゲート跡が見えるため、外観を損なうという問題があった。さらに、これらの二色成形方法では、キャビティが可動側に来るため、製品の天面において突出しピンを適用しなければならず、突出しピン跡が製品天面に残るという致命的な欠点があった。 However, even in this two-color molding two-gate method, the gate trace of the gate 62 can be seen at the bottom of the transparent resin portion 57, so that the appearance is impaired. Furthermore, in these two-color molding methods, since the cavity comes to the movable side, a protruding pin must be applied on the top surface of the product, and there is a fatal defect that the protruding pin mark remains on the top surface of the product. .
さらに、従来の技術として、特許文献１の製造方法による二色成形品は、図１０に示すように、開口部65を有する遮光性樹脂成形部66、66の外側に形成された透光性樹脂成形部67を介して遮光部68、68と透光部69とからなる絵付層70を有する絵付フィルム71を末広がり形状の断面門型に形成してなるものである。 Furthermore, as a conventional technique, a two-color molded product produced by the manufacturing method of Patent Document 1 has a light-transmitting resin formed on the outside of a light-shielding resin molded portion 66 having an opening 65, as shown in FIG. A picture film 71 having a picture layer 70 composed of light shielding parts 68 and 68 and a light transmitting part 69 is formed in a cross-sectional gate shape having a divergent shape through a molding part 67.
ところが、この特許文献１の成形品においても、バックライティングしたとき、上面の透光部69と遮光部68との境界がそのまま見えるため、外観を損なうという欠点があった。
本発明は上記のような問題点を解消するためになされたもので、金属調外観を有する合成樹脂リングの角部がシャープに形成され、またリング状の天面が見た目にも完全フラットを呈することによって見映えが良く、突出しピンの跡もなく、さらにバックライティングの際にリング状の天面の中央に沿って円形に発せられる光に影が生じることなく、且つ真円を描いて発光するようにした部分的に透過照明可能な金属調合成樹脂リング及びその製造方法並びに射出成形金型を提供することを目的とする。 The present invention has been made to solve the above-described problems. The corners of a synthetic resin ring having a metallic appearance are sharply formed, and the ring-shaped top surface is completely flat. It looks good, there is no trace of protruding pins, and there is no shadow in the light emitted in a circle along the center of the ring-shaped top surface during backlighting, and it emits light in a perfect circle It is an object of the present invention to provide a metal-tone synthetic resin ring capable of partially transmitting illumination, a manufacturing method thereof, and an injection mold.
上記の目的を達成するために、本発明における請求項１記載の部分的に透過照明可能な金属調合成樹脂リングは、透過照明可能な金属薄膜を有する合成樹脂シートを断面門型且つリング状に形成してなる透過リングと透明樹脂をサイドゲート方式でリング状に射出成形してなる透明樹脂リングとが形成され、該透明樹脂リングが前記透過リングの内側天面の中央に接して設けられると共に、前記透明樹脂リングの両側に不透明樹脂部が前記透過リングの内側天面に接するように形成され、前記透明樹脂リングの下部であって前記両側の不透明樹脂部の間に前記透明樹脂リングを位置決めするために使用された金型のコアによる形状を内部空間として有することを特徴とする。 In order to achieve the above-mentioned object, the partially transparent illuminating metallic tone synthetic resin ring according to claim 1 of the present invention comprises a synthetic resin sheet having a transparent thin illuminating metal thin film in a cross-sectional gate shape and ring shape. And a transparent resin ring formed by injection molding a transparent resin into a ring shape by a side gate method, and the transparent resin ring is provided in contact with the center of the inner top surface of the transmission ring. The opaque resin portions are formed on both sides of the transparent resin ring so as to be in contact with the inner top surface of the transmission ring, and the transparent resin ring is positioned between the opaque resin portions on both sides of the lower portion of the transparent resin ring. It has the shape by the core of the metal mold | die used in order to do as internal space, It is characterized by the above-mentioned.
また、本発明における請求項２記載の部分的に透過照明可能な金属調合成樹脂リングは、請求項１において、前記金属薄膜の光線透過率が１〜５０％であることを特徴とする。 Moreover, the metal-tone synthetic resin ring according to claim 2 of the present invention which is capable of partially transmitting illumination is characterized in that, in claim 1, the light transmittance of the metal thin film is 1 to 50%.
また、本発明における請求項３記載の部分的に透過照明可能な金属調合成樹脂リングは、請求項１又は２において、前記透過リングの天面に、一定間隔のグラデーション印刷、一定間隔のスポット印刷、目盛り等の表示又は彩色をスクリーン印刷方式で印刷してなることを特徴とする。 Moreover, the metal-tone synthetic resin ring capable of partially transmitting illumination according to claim 3 of the present invention, according to claim 1 or 2, is provided with gradation printing at regular intervals and spot printing at regular intervals on the top surface of the transmission ring. The display or coloring of scales is printed by a screen printing method.
また、本発明における請求項４記載の部分的に透過照明可能な金属調合成樹脂リングの製造方法は、第１の金型により透明樹脂をサイドゲートでリング状に形成することにより透明樹脂リングとし、表面又は裏面に透過照明可能な金属薄膜を有する合成樹脂シートを断面門型のリング状に賦形してトリミングしてなる透過リングを第２の金型のキャビティに装着すると共に、前記透明樹脂リングを前記第２の金型のコアに形成された凹部に嵌合した位置決め状態で該第２の金型を閉じた後、前記透過リングと前記透明樹脂リングと前記第２の金型のコアとで形成される空間に複数のトンネル２ゲート方式で不透明樹脂を射出成形することにより前記透明樹脂リングの両側に不透明樹脂部を形成するようにしたことを特徴とする。 According to a fourth aspect of the present invention, there is provided a method of manufacturing a partially transparent illuminating metallic tone synthetic resin ring, wherein a transparent resin is formed into a ring shape with a side gate using a first mold. And mounting a transparent ring formed by trimming a synthetic resin sheet having a metal thin film capable of transmitting illumination on the front surface or the back surface into a ring-shaped ring shape in a second mold, and the transparent resin After closing the second mold in a positioning state in which the ring is fitted in a recess formed in the core of the second mold, the transmission ring, the transparent resin ring, and the core of the second mold The opaque resin portions are formed on both sides of the transparent resin ring by injection molding opaque resin in a space formed by a plurality of tunnel two-gate methods.
さらに、本発明における請求項５記載の金属調合成リングの製造方法は、第１の金型により透明樹脂をサイドゲートでリング状に形成し、表面又は裏面に透過照明可能な金属薄膜を有する合成樹脂シートを断面門型且つリング状に賦形してトリミングした透過リングを第２の金型のキャビティに装着し、前記第１の金型で成形した透明樹脂リングを第２の金型のコアで、前記透明樹脂リングと嵌合する凹部を有するコアに挿入して第２の金型を閉じ、前記透明樹脂リングと前記断面門型の透過リングと第２の金型のコアとで形成される空間に複数のトンネル２ゲート方式で不透明樹脂を射出成形してなる部分的に透過照明可能な金属調合成樹脂リングを製造することを特徴とする。
Furthermore, the manufacturing method of the metal tone synthetic | combination ring of Claim 5 in this invention WHEREIN: The synthetic resin which forms transparent resin in a ring shape with a 1st metal mold | die by a side gate, and has the metal thin film which can be transmitted and illuminated on the surface or the back surface A transparent ring formed by trimming a resin sheet in a gate shape and a ring shape is mounted in the cavity of the second mold, and the transparent resin ring molded by the first mold is used as the core of the second mold. The second mold is closed by inserting into a core having a recess that fits with the transparent resin ring, and is formed by the transparent resin ring, the cross-sectional gate-shaped transmission ring, and the second mold core. A metallic synthetic resin ring capable of partially transmitting illumination, which is formed by injection molding opaque resin in a plurality of tunnel two gate systems in a space to be manufactured.
本発明の部分的に透過照明可能な金属調合成樹脂リングにおいて、外観を成す透過リングは予め真空成形等で断面門型のリング状に賦形加工されてトリミングされたものを射出成形金型内で成形するため、真空成形等に比べて高い成形圧力が作用して角部がシャープに形成された外観を呈することとなる。なお、勿論のことであるが、この製品には透過リングの天面における突出しピンの跡がなく、優れた外観を呈するものとなる。 In the metal-tone synthetic resin ring capable of partially transmitting illumination according to the present invention, the transmissive ring that forms the exterior is shaped and trimmed in advance by vacuum forming or the like into a ring shape of a cross-sectional gate shape in the injection mold. Therefore, a high molding pressure is applied as compared with vacuum molding or the like, and the corners are sharply formed. Needless to say, this product does not have a protruding pin mark on the top surface of the transmission ring, and exhibits an excellent appearance.
また、透過リングの内側に設けられた透明樹脂リングは、不透明樹脂の射出成形時に、金型のコアの凹部に嵌合された状態で位置決めされ、ずれたり倒れたりしない固定状態で、その両側に均等の圧力で不透明樹脂部の射出成形を行うため、この成形時に透明樹脂リングにずれが発生せず、透過リングの内側にて天面の中央に沿ってずれのない状態で真円を描くように形成される。しかも、この透明樹脂リングはサイドゲート方式で形成されたものであり、ゲート跡は透明樹脂リングの側部に形成されるため、バックライティングした際の光の透過を妨げることがない。 In addition, the transparent resin ring provided inside the transmission ring is positioned in a state where it is fitted in the recess of the core of the mold at the time of injection molding of the opaque resin, and is fixed on both sides of the transparent resin ring so that it does not shift or fall down. Since the opaque resin part is injection-molded with equal pressure, the transparent resin ring will not be displaced during this molding, and a perfect circle should be drawn with no displacement along the center of the top surface inside the transmission ring. Formed. In addition, the transparent resin ring is formed by a side gate method, and the gate mark is formed on the side portion of the transparent resin ring, so that it does not hinder light transmission during backlighting.
さらに、透過照明可能な金属薄膜を有する断面門型の透過リングの内側において、中央の透明樹脂リングの天面とその両側の不透明樹脂部の天面が段差なくフラットな状態で透過リングの天面に接触した形状となるため、夜間等にバックライティングしたとき、透過リングの天面が完全フラットに見え、見映えのよい真円の光を発することが可能となる。また、製品の天面に突出しピンの跡がなく、優れた外観を呈することとなる。 Furthermore, inside the cross-section gate-shaped transmission ring having a metal thin film capable of transmitting illumination, the top surface of the central transparent resin ring and the top surface of the opaque resin portion on both sides thereof are flat without a step and are flat. Therefore, when the backlighting is performed at night or the like, the top surface of the transmission ring looks completely flat, and it is possible to emit a perfect circular light with good appearance. Moreover, it protrudes on the top surface of the product and has no trace of pins, and exhibits an excellent appearance.
以下、本発明の実施例について図面を参照しながら説明する。 Embodiments of the present invention will be described below with reference to the drawings.
本発明による合成樹脂リング１は、図１(a)及び(ｂ)に示すように、透過照明可能な金属薄膜（図面には現れていない）を有する合成樹脂シートを断面門型（コ字形を門型に倒立したような断面形状）且つリング状に形成してなる透過リング３と、透明樹脂をサイドゲート方式でリング状に射出成形してなる透明樹脂リング４とが形成され、該透明樹脂リング４が透過リング３の内側天面の中央に接して設けられると共に、透明樹脂リング４の両側に不透明樹脂部５、５が透過リング３の内側天面に接するように形成され、透明樹脂リング４の下部であって両側の不透明樹脂部５、５の間に透明樹脂リング４を位置決めするために使用された金型のコア２５（図４参照）による形状を内部空間として有するものである。 As shown in FIGS. 1 (a) and 1 (b), a synthetic resin ring 1 according to the present invention is made of a synthetic resin sheet having a metal thin film (not shown in the drawing) capable of transmitting illumination, having a cross-sectional gate shape (U-shaped). A transparent ring 3 formed by injection molding a transparent resin into a ring shape by a side gate method, and a transparent resin ring 4 formed in a ring shape by a side gate method. The ring 4 is provided in contact with the center of the inner top surface of the transmission ring 3, and the opaque resin portions 5 and 5 are formed on both sides of the transparent resin ring 4 so as to contact the inner top surface of the transmission ring 3. 4 has a shape formed by a mold core 25 (see FIG. 4) used for positioning the transparent resin ring 4 between the opaque resin portions 5 and 5 on both sides.
上記の合成樹脂リング１についてより詳細に述べると、透過リング３は、図３(a)及び(b)に示すように、無色透明な合成樹脂シート又はフィルムの表面または裏面に金属箔の転写、金属の蒸着、又はスパッタリング等によって光線を透過可能とする金属薄膜を形成し、これを真空成形等で断面門型をなすリング状に賦形加工してトリミングすることにより製作する。 The above-mentioned synthetic resin ring 1 will be described in more detail. As shown in FIGS. 3 (a) and 3 (b), the transmission ring 3 has a metal foil transferred to the front or back surface of a colorless and transparent synthetic resin sheet or film. A metal thin film capable of transmitting light is formed by vapor deposition or sputtering of metal, and the thin film is formed into a ring shape having a sectional gate shape by vacuum forming or the like and trimmed.
従って、この透過リング３は、天面３ａおよび両側面３ｂ、３ｂともに金属薄膜による金属調を呈するものであり、光線を照射すると、光を透過する。 Therefore, the top ring 3a and both side surfaces 3b, 3b exhibit a metallic tone by the metal thin film, and the transmission ring 3 transmits light when irradiated with light rays.
なお、図１(ｂ)に示すように、透過リング３の天面３ａが内側に下り勾配を有する傾斜状に形成されているのは、リング状を成す透過リング３の装飾上の配慮であって、必ずしも傾斜した形状にしなくてもよい。 Note that, as shown in FIG. 1B, the top surface 3a of the transmission ring 3 is formed in an inclined shape having a downward slope inward because of the decorative consideration of the transmission ring 3 that forms a ring shape. Thus, it is not always necessary to have an inclined shape.
上記の透過リング３の光の透過性能は、金属薄膜の厚さによって調整することができ、その厚さの調整によって光線透過率が１〜５０％とするのが望ましい。 The light transmission performance of the transmission ring 3 can be adjusted by the thickness of the metal thin film, and the light transmittance is preferably 1 to 50% by adjusting the thickness.
また、図１(ｂ)に示すように、断面門型をなす透過リング３の内側空間の天面中央に接して形成された透明樹脂リング４は、後述するように透明樹脂をサイドゲート方式でリング状に射出成形してなるものであり、その断面形状は全体として縦長の長方形であるが、上面はフラットであり、上記の断面門型をなす透過リング３の天面３ａの内側中央に接触した状態で設けられる。 Further, as shown in FIG. 1B, the transparent resin ring 4 formed in contact with the center of the top surface of the inner space of the transmission ring 3 having a cross-sectional gate shape is formed by using a side-gate type transparent resin as will be described later. It is formed by injection molding into a ring shape, and the cross-sectional shape is a vertically long rectangle as a whole, but the upper surface is flat and contacts the inner center of the top surface 3a of the transmission ring 3 that forms the cross-sectional gate shape described above. Provided.
さらに、上記の透明樹脂リング４の両側には不透明樹脂部５、５が形成されている。これらの不透明樹脂部５、５は、後述するように上記の透明樹脂リング４をコア２５の凹部２６（図４参照）に嵌合することによって位置決めされた状態で、その透明樹脂リング４の両側に黒色等の不透明樹脂を射出成形することによって形成されたものである。 Further, opaque resin portions 5 and 5 are formed on both sides of the transparent resin ring 4. These opaque resin portions 5 and 5 are positioned on both sides of the transparent resin ring 4 in a state where the transparent resin ring 4 is positioned by fitting the transparent resin ring 4 into the recess 26 (see FIG. 4) of the core 25 as will be described later. It is formed by injection molding opaque resin such as black.
従って、これらの不透明樹脂部５、５は、その上面が透過リング３の天面３ａの内側に接触すると共に、中央の透明樹脂リング４を挟むように接触した状態で形成される。このため、合成樹脂リング１は透明樹脂リング４の下部であって両側の不透明樹脂部５、５の間に透明樹脂リング４を位置決めするために使用されたコア２５（図４参照）を除去した形状を内部空間６として有することとなる。 Accordingly, the opaque resin portions 5 and 5 are formed in a state in which the upper surfaces thereof are in contact with the inner side of the top surface 3a of the transmission ring 3 and are in contact with the transparent resin ring 4 at the center. For this reason, the synthetic resin ring 1 is the lower part of the transparent resin ring 4 and the core 25 (see FIG. 4) used for positioning the transparent resin ring 4 between the opaque resin parts 5 and 5 on both sides is removed. A shape is provided as the internal space 6.
上記の構成により、合成樹脂リング１の外観を成す透過リング３は予め真空成形等で断面門型のリング状に賦形加工されてトリミングされたものを金型内で成形するため、断面門型の角部がシャープな外観を呈することとなる。 With the above configuration, the transmission ring 3 that forms the appearance of the synthetic resin ring 1 is molded in a mold in a mold that has been shaped and trimmed in advance into a ring shape of a sectional gate shape by vacuum forming or the like. The corners of the screen will have a sharp appearance.
また、透過リング３の内部に設けられた透明樹脂リング４は、後述するコア２５の凹部２６（図４参照）に嵌合された位置決め状態でその両側の不透明樹脂部５、５に挟まれた状態を保つことにより、透過リング３の天面３ａの内側中央に沿ってずれのない固定状態で真円を描くことができ、しかも、この透明樹脂リング４はサイドゲート方式で形成されたものであるため、ゲート跡４ａ（図２(ｃ)参照）は透明樹脂リング４の側面に形成され、バックライティングした際の光の透過を妨げることがない。 Further, the transparent resin ring 4 provided inside the transmission ring 3 is sandwiched between the opaque resin portions 5 and 5 on both sides in a positioning state in which the transparent resin ring 4 is fitted in a recess 26 (see FIG. 4) of the core 25 described later. By maintaining the state, a perfect circle can be drawn in a fixed state with no deviation along the inner center of the top surface 3a of the transmission ring 3, and the transparent resin ring 4 is formed by a side gate method. For this reason, the gate mark 4a (see FIG. 2C) is formed on the side surface of the transparent resin ring 4, and does not hinder the transmission of light when backlit.
さらに、透過照明可能な金属薄膜を有する断面門型の透過リング３の内側において、中央の透明樹脂リング４の天面とその両側の不透明樹脂部５の天面が段差なくフラットな状態で透過リング３の天面３ａの内側に接触した形状となるため、夜間等にバックライティングしたとき、透過リング３のリング状の天面が完全フラットに見え、見映えのよい状態で真円の光を発することが可能となる。 Further, inside the transmission gate 3 having a gate-shaped cross section having a metal thin film capable of transmitting illumination, the top surface of the central transparent resin ring 4 and the top surface of the opaque resin portions 5 on both sides thereof are flat and have no step. 3 is in contact with the inside of the top surface 3a, so when backlit at night or the like, the ring-shaped top surface of the transmissive ring 3 appears to be completely flat and emits a perfectly circular light with a good appearance. It becomes possible.
上記の合成樹脂リング１の製造方法は、図２(a)〜(ｃ)に示すように、まず、第１の金型１０により透明樹脂１１をサイドゲートでリング状に形成することにより透明樹脂リング４を形成する。即ち、透明樹脂リング４は、図２(ｃ)に示すように、断面ほぼ長方形であって下部が後述するコア２５の凹部２６に嵌合される湾曲形状をなし、また上面が上記の透過リング３の天面３ａの傾斜状態に対応する形状であって、全体がリング状を有するように形成されている。 As shown in FIGS. 2A to 2C, the synthetic resin ring 1 is manufactured by first forming a transparent resin 11 in a ring shape with a side gate using a first mold 10. Ring 4 is formed. That is, as shown in FIG. 2 (c), the transparent resin ring 4 has a substantially rectangular cross section, and has a curved shape in which the lower portion is fitted into a concave portion 26 of the core 25 described later, and the upper surface is the above-described transmission ring. 3 is a shape corresponding to the inclined state of the top surface 3a, and is formed so as to have a ring shape as a whole.
このような形状の透明樹脂リング４を形成する形状のキャビティ１２を図２(ｂ)に示すように形成し、金型１０に設けられたランナー１３の端部にゲート１４を設け、このゲート１４が透明樹脂リング４を形成する金型のキャビティ１２の側部に位置するように形成する。このような金型１０のスプルーブッシュ１５を経て溶融状態の透明樹脂１１を射出成形し冷却した後、金型１０を開くことによって成形品１７を得ることができる。この成形品１７の平面は、図２(a)に示すもので、成形品１７のスプルー部１６とランナー部１８とゲート部１９とを除去することにより、図２(a)の外周をなす透明樹脂リング４を得ることができる。 A cavity 12 having a shape for forming the transparent resin ring 4 having such a shape is formed as shown in FIG. 2B, and a gate 14 is provided at an end of a runner 13 provided in the mold 10. Is formed so as to be located on the side of the cavity 12 of the mold that forms the transparent resin ring 4. The molded product 17 can be obtained by opening the mold 10 after the molten transparent resin 11 is injection molded through the sprue bush 15 of the mold 10 and cooled, and then cooled. The flat surface of the molded product 17 is as shown in FIG. 2 (a). By removing the sprue portion 16, the runner portion 18 and the gate portion 19 of the molded product 17, the transparent surface forming the outer periphery of FIG. The resin ring 4 can be obtained.
上記のサイドゲート方式によって形成した透明樹脂リング４は、図２(ｃ)に示すように、ゲート跡４ａが透明樹脂リング４の側部に形成されるため、上記のようにバックライティングした際の光の透過を妨げることがない。 As shown in FIG. 2C, the transparent resin ring 4 formed by the side gate method has a gate mark 4a formed on the side portion of the transparent resin ring 4, and thus when the backlighting is performed as described above. Does not interfere with light transmission.
一方、図３(a)及び(b)に示すように、表面又は裏面に透過照明可能な金属薄膜を有する合成樹脂シートを断面門型のリング状に賦形してトリミングしたもの、即ち上記の透過リング３を用意する。そして、図４に示すように、この透過リング３を第２の金型２０のキャビティ２１に装着する。 On the other hand, as shown in FIGS. 3 (a) and 3 (b), a synthetic resin sheet having a metal thin film capable of transmitting illumination on the front surface or the back surface is shaped into a ring shape with a gate section and trimmed, that is, the above-mentioned A transmission ring 3 is prepared. Then, as shown in FIG. 4, the transmission ring 3 is mounted in the cavity 21 of the second mold 20.
即ち、図４又は図５に示すように、第２の金型２０の固定側金型２０ａには透過リング３を装着するための形状を有するキャビティ２１が形成され、その両側には内側のスプルーブッシュ２２ａと外側のスプルーブッシュ２２ｂ（図５(a)参照）が設けられている。これらのスプルーブッシュ２２ａ、２２ｂはパーティング面２３から傾斜したランナー２４ａ、２４ｂを経てゲート２５ａ、２５ｂへと到るトンネルゲート方式に形成され、このようなゲート２５ａ、２５ｂが固定金型２０ａのキャビティ２１内の中央に突出するコア２５の両側においてキャビティ２１に連通されている。 That is, as shown in FIG. 4 or FIG. 5, a cavity 21 having a shape for mounting the transmission ring 3 is formed in the fixed mold 20a of the second mold 20, and inner sprues are formed on both sides thereof. A bush 22a and an outer sprue bush 22b (see FIG. 5A) are provided. These sprue bushings 22a and 22b are formed in a tunnel gate system that reaches runners 24a and 24b inclined from the parting surface 23 to the gates 25a and 25b. Such gates 25a and 25b are formed in the cavity of the fixed mold 20a. The core 21 is communicated with the cavity 21 on both sides of the core 25 protruding in the center.
また、可動側金型２０ｂは固定側金型２０ａのキャビティ２１内の中央に突出するコア２５を有し、このコア２５の上部に上記の透明樹脂リング４を嵌合するための凹部２６が形成され、該凹部２６に透明樹脂リング４を嵌合することによってキャビティ２１における合成樹脂リング１の位置決めを行うようにしている。 The movable mold 20b has a core 25 protruding in the center of the cavity 21 of the fixed mold 20a, and a recess 26 for fitting the transparent resin ring 4 is formed on the core 25. The synthetic resin ring 1 is positioned in the cavity 21 by fitting the transparent resin ring 4 into the recess 26.
上記の構成により、金型２０を閉じると、コア２５の凹部２６に嵌合された透明樹脂リング４の上面がキャビティ２１に装着された透過リング３の天面内側に接触した状態となる。この状態でスプルーブッシュ２２ａ、２２ｂからランナー２４ａ、２４ｂを経てゲート２５ａ、２５ｂよりキャビティ２１に黒色樹脂等の不透明樹脂２７を射出すると、透過リング３の天面３ａに接触した状態であって、且つ中央の透明樹脂リング４を挟んだ状態で、透明樹脂リング４と断面門型の透過リング３とコア２６とで形成される空間に不透明樹脂部５が射出成形される。 With the above configuration, when the mold 20 is closed, the upper surface of the transparent resin ring 4 fitted in the recess 26 of the core 25 comes into contact with the inner surface of the transmissive ring 3 attached to the cavity 21. In this state, when opaque resin 27 such as black resin is injected from the sprue bushes 22a and 22b through the runners 24a and 24b to the cavity 21 from the gates 25a and 25b, the state is in contact with the top surface 3a of the transmission ring 3, and The opaque resin portion 5 is injection-molded in a space formed by the transparent resin ring 4, the cross-sectional gate-shaped transmission ring 3 and the core 26 with the central transparent resin ring 4 interposed therebetween.
そして、冷却後に金型２０を開くと、成形品３０において傾斜したランナー部２８ａ、２８ｂとゲート部２９ａ、２９ｂとが切り離されるため、成形品３０にはゲート部２９ａ、２９ｂが残るが、成形品３０からゲート部２９ａ、２９ｂを切除することにより、図１(a)及び(ｂ)に示すような合成樹脂リング１を得ることができる。 When the mold 20 is opened after cooling, the runner portions 28a and 28b and the gate portions 29a and 29b that are inclined in the molded product 30 are separated from each other, so that the gate portions 29a and 29b remain in the molded product 30. By cutting the gate portions 29a and 29b from 30, the synthetic resin ring 1 as shown in FIGS. 1 (a) and 1 (b) can be obtained.
上記の合成樹脂リング１の製造法において、図６に示すように、表面又は裏面に透過照明可能な金属薄膜を有する合成樹脂シートに一定間隔のグラデーション印刷３２、一定間隔のスポット印刷３３、目盛り等の表示又は彩色をスクリーン印刷方式で印刷した合成樹脂シートを使用して、合成樹脂リング１を製造することが可能である。 In the manufacturing method of the synthetic resin ring 1 described above, as shown in FIG. 6, gradation printing 32 at regular intervals, spot printing 33 at regular intervals, scales, etc. on a synthetic resin sheet having a metal thin film that can be illuminated on the front or back surface. It is possible to manufacture the synthetic resin ring 1 using the synthetic resin sheet on which the display or coloring is printed by the screen printing method.
本発明は、自動車の計器板におけるスピードメータ、タコメータ或いは温度ゲージ等の周囲を装飾する装飾品として利用するものであり、他の用途として自動車のエアコンの操作パネルの装飾品としても利用可能であり、また家電製品における円形ダイヤルの装飾にも利用することが可能である。 The present invention is used as a decoration for decorating the periphery of a speedometer, tachometer, temperature gauge or the like on an automobile instrument panel, and can also be used as a decoration for an operation panel of an automobile air conditioner as another application. It can also be used for decoration of circular dials in home appliances.
なお、本発明における合成樹脂リングは円形に限定されるものではなく、円弧と直線から形成されるリング或いは直線によって形成される多角形リング等の形状を採りうるものである。 In addition, the synthetic resin ring in the present invention is not limited to a circular shape, and may take a shape such as a ring formed by an arc and a straight line, or a polygonal ring formed by a straight line.
1 合成樹脂リング
3 透過リング
3ａ 天面
3ｂ 側面
4 透明樹脂リング
4ａ ゲート跡
5 不透明樹脂部
6 内部空間
10 第１の金型
11 透明樹脂
12 キャビティ
13 ランナー
14 ゲート
15 スプルーブッシュ
17 成形品
16 スプルー部
18 ランナー部
19 ゲート部
20 第２の金型
20ａ 固定金型
20ｂ 可動金型
21 キャビティ
22ａ 内側のスプルーブッシュ
22ｂ 外側のスプルーブッシュ
23 パーティング面
24ａ、24ｂ ランナー
25ａ、25ｂ ゲート
25 コア
26 凹部
27 不透明樹脂
28ａ、28ｂ ランナー部
29ａ、29ｂ ゲート部
30 成形品
31 合成樹脂シート
32 グラデーション印刷
33 スポット印刷
1 Synthetic resin ring
3 Transmission ring
3a Top
3b side view
4 Transparent resin ring
4a Gate trace
5 Opaque resin part
6 Internal space
10 First mold
11 Transparent resin
12 cavity
13 runners
14 Gate
15 Sprue bushing
17 Molded products
16 Sprue part
18 Runner
19 Gate part
20 Second mold
20a Fixed mold
20b Movable mold
21 cavity
22a Inner sprue bush
22b Outer sprue bushing
23 Parting surface
24a, 24b Runner
25a, 25b gate
25 cores
26 Recess
27 Opaque resin
28a, 28b Runner part
29a, 29b Gate part
30 Molded products
31 Synthetic resin sheet
32 Gradation printing
33 Spot printing
Claims (5)
A transparent ring is formed by forming a transparent resin with a first gate in a ring shape with a side gate, and trimming a synthetic resin sheet having a metal thin film that can be illuminated on the front or back surface in a cross-sectional gate shape and ring shape. A transparent resin ring mounted in the cavity of the second mold and molded by the first mold is inserted into the core of the second mold into a core having a recess to be fitted with the transparent resin ring. A portion formed by injecting opaque resin by a plurality of tunnel 2 gate systems in a space formed by the transparent resin ring, the cross-sectional gate-shaped transmission ring, and the second mold core; A method for producing a metal-tone synthetic resin ring, characterized by producing a metal-tone synthetic resin ring that can be transmitted and illuminated .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004378484A JP3972311B2 (en) | 2004-12-28 | 2004-12-28 | Metal-tone synthetic resin ring and manufacturing method thereof |
| KR1020050019010A KR100727551B1 (en) | 2004-12-28 | 2005-03-08 | Metallic synthetic resin ring, method of manufacturing the same, and injection mold |
| CNB2005100560540A CN100460183C (en) | 2004-12-28 | 2005-03-21 | Metal color synthetic resin central , manufacturing method thereof and jet-shaping metal mould |
| HK06111545.1A HK1090883A1 (en) | 2004-12-28 | 2006-10-19 | A synthesized resin ring having a metal color tone, a method of fabricating the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004378484A JP3972311B2 (en) | 2004-12-28 | 2004-12-28 | Metal-tone synthetic resin ring and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006181890A JP2006181890A (en) | 2006-07-13 |
| JP3972311B2 true JP3972311B2 (en) | 2007-09-05 |
Family
ID=36735339
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004378484A Active JP3972311B2 (en) | 2004-12-28 | 2004-12-28 | Metal-tone synthetic resin ring and manufacturing method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3972311B2 (en) |
| KR (1) | KR100727551B1 (en) |
| CN (1) | CN100460183C (en) |
| HK (1) | HK1090883A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4742341B2 (en) * | 2005-11-07 | 2011-08-10 | 株式会社サカイヤ | Manufacturing method of ring-integrated display panel |
| US8339535B2 (en) | 2007-12-28 | 2012-12-25 | Samsung Electronic Co., Ltd. | Display, front cover thereof, mold of front cover, and manufacturing method for front cover |
| US9662856B2 (en) | 2007-12-28 | 2017-05-30 | Samsung Electronics Co., Ltd. | Display, front cover thereof, mold of front cover, and manufacturing method for front cover |
| JP5204624B2 (en) * | 2008-11-04 | 2013-06-05 | カルソニックカンセイ株式会社 | Decorative material |
| JP2010280099A (en) * | 2009-06-03 | 2010-12-16 | Sakaiya:Kk | Synthetic resin molding and method for manufacturing the same |
| JP5885188B2 (en) * | 2011-08-11 | 2016-03-15 | 矢崎総業株式会社 | Metal-tone dial plate and method for producing the metal-tone dial plate |
| KR101238078B1 (en) | 2012-10-04 | 2013-02-27 | 정은수 | Split ring mold and method of manufacturing the same and split ring |
| KR20140050467A (en) * | 2012-10-19 | 2014-04-29 | 현대모비스 주식회사 | Decoration device for car |
| KR101927482B1 (en) | 2017-09-05 | 2019-03-12 | 주식회사 파인테크닉스 | Die casting mold having central injection structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06106572A (en) * | 1992-09-29 | 1994-04-19 | Nissha Printing Co Ltd | Two-color molded product and its manufacture |
| JPH06134805A (en) * | 1992-10-29 | 1994-05-17 | Nissha Printing Co Ltd | Two-color molded article and production thereof |
| JP3964953B2 (en) | 1997-02-12 | 2007-08-22 | 日本写真印刷株式会社 | Matte insert film and matte insert molded product manufacturing method |
| JPH11188740A (en) * | 1997-12-26 | 1999-07-13 | Pentel Kk | Apparatus for polymerizing and molding two kinds of resin materials |
| KR100324574B1 (en) | 1999-07-08 | 2002-02-16 | 이종석 | Metal mold for a injection molding |
| JP2002160261A (en) * | 2000-11-22 | 2002-06-04 | Marutaka Kanagata:Kk | Two-color molding method for molded article consisting of resins of different kind and resin molded article molded thereby |
| JP2003300228A (en) * | 2002-04-10 | 2003-10-21 | Marutaka Kanagata:Kk | Key sheet molding mold |
-
2004
- 2004-12-28 JP JP2004378484A patent/JP3972311B2/en active Active
-
2005
- 2005-03-08 KR KR1020050019010A patent/KR100727551B1/en not_active IP Right Cessation
- 2005-03-21 CN CNB2005100560540A patent/CN100460183C/en not_active Expired - Fee Related
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2006
- 2006-10-19 HK HK06111545.1A patent/HK1090883A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| HK1090883A1 (en) | 2007-01-05 |
| CN100460183C (en) | 2009-02-11 |
| KR100727551B1 (en) | 2007-06-14 |
| CN1796081A (en) | 2006-07-05 |
| KR20060076139A (en) | 2006-07-04 |
| JP2006181890A (en) | 2006-07-13 |
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