JPH04166315A - Key top - Google Patents
Key topInfo
- Publication number
- JPH04166315A JPH04166315A JP29085190A JP29085190A JPH04166315A JP H04166315 A JPH04166315 A JP H04166315A JP 29085190 A JP29085190 A JP 29085190A JP 29085190 A JP29085190 A JP 29085190A JP H04166315 A JPH04166315 A JP H04166315A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- light
- light transmission
- transmission member
- key top
- 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
- 229920005989 resin Polymers 0.000 abstract description 16
- 239000011347 resin Substances 0.000 abstract description 16
- 238000000465 moulding Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 10
- 238000004891 communication Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract 6
- 238000005266 casting Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、カーラジオ、カーステレオ等の各種入力装置
に使用されるキートップに係り、特に、透光部材上に外
形部材を一体に成形したキートップに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to key tops used in various input devices such as car radios and car stereos, and particularly relates to key tops used in various input devices such as car radios and car stereos. Regarding the key top.
従来、例えば特開昭６２−２７９９１１号公報に示され
るように、透光部材と外形部材とを用いていわゆる二色
成形法によって一体に成形するキートップの製造方法が
提案されている。Conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. 62-279911, a method of manufacturing a key top has been proposed in which a light-transmitting member and an external member are integrally molded by a so-called two-color molding method.
第５図ないし第８図は上記の製造方法によって成形され
るキートップを説明する図で、第５図はキートップの断
面図、第６図は透光部材を成形する工程を説明する断面
図、第７図は第６図のスライドビンの位置を示す要部斜
視図、第８図は外形部材を成形する工程を説明する断面
図である。なお、第６図は第７図のＡ−Ａ線に沿う断面
に対応する断面図である。Figures 5 to 8 are diagrams illustrating key tops molded by the above manufacturing method, where Figure 5 is a sectional view of the key top, and Figure 6 is a sectional diagram illustrating the process of molding a transparent member. , FIG. 7 is a perspective view of a main part showing the position of the slide bin shown in FIG. 6, and FIG. 8 is a sectional view illustrating the process of molding the external member. Note that FIG. 6 is a cross-sectional view corresponding to the cross section taken along line A-A in FIG. 7.
一般にキートップにあっては、第５図に示すように、光
透過性を有する合成樹脂等の透光部材ｌと、この透光部
材ｌの外側に一体に成型される外形部材２とからなって
いる。上記の透光部材１は、台部３と、この台部３の天
面から突出し、表面より露出する表示部４とから一体に
構成されている。Generally, a key top is made up of a light-transmitting member l made of a synthetic resin or the like having light-transmitting properties, and an external member 2 integrally molded on the outside of the light-transmitting member l, as shown in Fig. 5. ing. The above-mentioned light-transmitting member 1 is integrally constituted by a base portion 3 and a display portion 4 that protrudes from the top surface of the base portion 3 and is exposed from the surface.
そして、台部３の底面側に設けられる図示しない光源が
点灯するとき、この光が台部３および表示部４を透過し
て、露出部分すなわち表示部４を内部から照光するよう
になっている。なお、透光部材１の表示部４が、第７図
に示すように例えば数字の「４」を示す場合、この表示
部４によって外形部材２の閉鎖部５が囲まれている。When a light source (not shown) provided on the bottom side of the base section 3 is turned on, this light passes through the base section 3 and the display section 4 and illuminates the exposed portion, that is, the display section 4 from inside. . In addition, when the display part 4 of the transparent member 1 shows the number "4", for example, as shown in FIG. 7, the closing part 5 of the external member 2 is surrounded by this display part 4.
このようなキートップでは従来、まず透光部材１を成形
する際、第６図に示すように、第１の上部金型１１およ
び下部金型１２間の注入口１３がら図示しない第１の溶
融樹脂を注入する。このとき、第７図に示すように、突
出部１４．１５を有するスライドビン１６が下部金型１
２がら突出している。上記の突出部１４．１５は、閉鎖
部５および該閉鎖部５の外側にそれぞれ位置するととも
に、各天面が上部金型１１の下面に当接している。Conventionally, in such a key top, when first molding the light-transmitting member 1, as shown in FIG. Inject the resin. At this time, as shown in FIG. 7, the slide bin 16 having the protrusion 14.15 is
2 stands out. The protrusions 14 and 15 are located in the closing part 5 and on the outside of the closing part 5, respectively, and their top surfaces are in contact with the lower surface of the upper mold 11.
このような状態で上記の第１の溶融樹脂により、上部金
型１１および下部金型１２間に形成される図示しないキ
ャビティを充填した後、硬化した透光部材１を得るよう
になっている。In this state, a cavity (not shown) formed between the upper mold 11 and the lower mold 12 is filled with the first molten resin, and then a hardened light-transmitting member 1 is obtained.
次いで、透光部材１から第１の上部金型１１を取外すと
ともに、スライドビン１６を所定寸法たけ下降させる。Next, the first upper mold 11 is removed from the transparent member 1, and the slide bin 16 is lowered by a predetermined distance.
その結果、閉鎖部５および該閉鎖部５の外側に孔１７．
１８が形成されるとともに、これらの孔１７．１８の間
には、台部３の下面より寸法ｄがけ下方に突出する突出
部１９が形成され、この突出部１９の底面より下方にス
ライドビン１６の天面が位置している。As a result, the closure 5 and the hole 17 on the outside of the closure 5.
18 is formed, and a protrusion 19 is formed between these holes 17 and 18 that protrudes downward by a distance d from the bottom surface of the base 3, and a slide bin 16 is formed below the bottom surface of the protrusion 19. The top surface of is located.
次いで、透光部材１の外側に外形部材２を一体に成型す
る際、第８図に示すように、第２の上部金型２１を透光
部材ｌ上に配置した状態で、第２の上部金型２１および
下部金型１２間の注入口２２から図示しない第２の溶ｌ
＠樹脂を注入する。このとき、第２の溶融樹脂の一部は
、孔１８、スライドビン１６の天面と突出部１９の底面
との間に形成される連通部２３、および孔１７を介して
閉鎖部５の部分に到達するようになっている。Next, when integrally molding the external member 2 on the outside of the transparent member 1, as shown in FIG. A second melt (not shown) flows from the injection port 22 between the mold 21 and the lower mold 12.
@Inject resin. At this time, a portion of the second molten resin passes through the hole 18 , the communication portion 23 formed between the top surface of the slide bin 16 and the bottom surface of the protruding portion 19 , and the hole 17 into the portion of the closing portion 5 . It is designed to reach.
そして、第２の溶融樹脂で第２の上部金型２１および透
光部材１間などに形成される図示しないキャビティを充
填して硬化させた後、第２の上部金型２１および下部金
型１２からキートップを取り出す。次いで、台部２の底
面の延長線上もしくは第８図のＢ−Ｂ線上でカッタ等に
より、突出部１９と第２の溶融樹脂が連通部２３内で硬
化した部分とを切断して除去し、第５図に示すキートッ
プを得るようになっている。Then, after filling and hardening a cavity (not shown) formed between the second upper mold 21 and the light-transmitting member 1 with the second molten resin, the second upper mold 21 and the lower mold 12 are cured. Remove the key top from the Next, the protruding portion 19 and the portion where the second molten resin has hardened within the communicating portion 23 are cut and removed using a cutter or the like on the extension line of the bottom surface of the base portion 2 or on the line B-B in FIG. The key top shown in FIG. 5 is obtained.
［発明が解決しようとする課題］
ところで、上述した従来技術にあっては、透光部材１と
外形部材２とが異なる種類の樹脂からなることから互い
に剥離しやすく、特に、外形部材２の閉鎖部５が透光部
材１がら天面側に脱落しやすいため、このような閉鎖部
５の脱落に伴い透光部材ｌの台部３が露出して見苦しく
なる懸念があった。[Problems to be Solved by the Invention] By the way, in the above-mentioned prior art, since the light-transmitting member 1 and the outer member 2 are made of different types of resin, they tend to separate from each other, especially when the outer member 2 is closed. Since the portion 5 is likely to fall off from the light-transmitting member 1 toward the top surface, there is a concern that the base portion 3 of the light-transmitting member 1 will be exposed as the closing portion 5 falls off, resulting in an unsightly appearance.
本発明はこのような従来技術における実情に鑑みてなさ
れたもので、その目的は、透光部材の表示部によって囲
まれる外形部材の閉鎖部が透光部材から脱落することを
確実に防止できるキートップを提供することにある。The present invention has been made in view of the actual situation in the prior art, and an object of the present invention is to provide a key that can reliably prevent the closing part of the external member surrounded by the display part of the light-transmitting member from falling off from the light-transmitting member. Our goal is to provide the top.
［課題を解決するための手段］
この目的を達成するために本発明は、表面に露出する表
示部、および該表示部が天面より突出して設けられる台
部を有する透光部材と、この透光部材上に成型され上記
台部を覆う外形部材とからなり、上記表示部を内部から
照光するようにしたキートップにおいて、上記台部に、
上記表示部によって囲まれる上記外形部材の閉鎖部と上
記台部の底面側とを連通ずるとともに、該底面側に対向
する段部を有する孔を設けて、この孔内に、上記段部に
より係止される係止部を有し、上記閉鎖部から突出して
形成される脚部を設けた構成にしである。[Means for Solving the Problems] In order to achieve this object, the present invention provides a transparent member having a display portion exposed on the surface and a base portion on which the display portion is provided so as to protrude from the top surface; In the key top, the key top includes an external member molded on a light member and covering the base part, and illuminates the display part from inside, the base part including:
A hole is provided in which the closed part of the external member surrounded by the display part communicates with the bottom side of the base part and has a step part facing the bottom side, and the hole is engaged by the step part. It has a locking part that is stopped, and a leg part that is formed to protrude from the closing part.
〔作用］
本発明は上記のように構成したので、透光部材の表示部
によって囲まれる外形部材の閉鎖部は、台部の孔内に設
けられる脚部を有している。そして、上記の孔は底面側
に対向する段部を有し、上記の脚部には底面側で大きな
断面積を有する係止部が形成されているので、該係止部
が孔内の段部によって係止され、これによって、脚部が
孔内から抜は出すことがなく、透光部材の表示部により
囲まれる外形部材の閉鎖部が透光部材から脱落すること
を確実に防止できる。[Function] Since the present invention is configured as described above, the closing portion of the external member surrounded by the display portion of the light-transmitting member has a leg portion provided in the hole of the base portion. The above-mentioned hole has a step portion facing the bottom side, and the above-mentioned leg portion has a locking portion having a large cross-sectional area on the bottom side, so that the locking portion is connected to the step inside the hole. As a result, the leg portions do not come out of the holes, and the closing portion of the external member surrounded by the display portion of the light-transmitting member can be reliably prevented from falling off from the light-transmitting member.
以下、本発明のキートップの実施例を図に基づいて説明
する。Hereinafter, embodiments of the key top of the present invention will be described based on the drawings.
第１図ないし第４図は本発明のキートップの一実施例を
説明する図で、第１図はキートップの断面図、第２図は
透光部材を成形する工程を説明する断面図、第３図は第
１の上部金型を取外した状態を示す断面図、第４図は外
形部材を成形する工程を説明する断面図である。1 to 4 are diagrams illustrating an embodiment of the key top of the present invention, where FIG. 1 is a sectional view of the key top, and FIG. 2 is a sectional view illustrating the process of molding a transparent member. FIG. 3 is a sectional view showing a state in which the first upper mold is removed, and FIG. 4 is a sectional view illustrating the process of molding an external member.
本実施例のキートップは、第１図に示すように、表面に
露出する表示部３１、および該表示部３１が天面より突
出して設けられる台部３２を有する例えばＡＢＳ樹脂な
どの透光部材３３と、この透光部材３３に一体に成型さ
れ台部３２を覆う例えばポリカーボネート樹脂などの遮
光性の外形部材３４とからなっている。なお、上記の表
示部３１は閉鎖文字を構成しており、この表示部３１に
よって外形部材３４の閉鎖部３４ａが囲まれている。As shown in FIG. 1, the key top of this embodiment is made of a transparent material such as ABS resin, which has a display section 31 exposed on the surface and a base section 32 on which the display section 31 is provided so as to protrude from the top surface. 33, and a light-shielding external member 34 made of, for example, polycarbonate resin, which is integrally molded with the light-transmitting member 33 and covers the base portion 32. Note that the above-mentioned display section 31 constitutes a closed character, and the closed section 34a of the external member 34 is surrounded by this display section 31.
上述した台部３２には、閉鎖部３４ａと台部３２の底面
側とを連通ずる孔３５、および閉鎖部３２ａの外側と台
部３２の底面側とを連通ずる孔３６が設けられている。The above-described pedestal 32 is provided with a hole 35 that communicates between the closing portion 34a and the bottom side of the pedestal 32, and a hole 36 that communicates the outside of the closing portion 32a with the bottom side of the pedestal 32.
上記の孔３５は、底面側、すなわち第３図の下側に対向
する段部３７を有している。そして、孔３５内には、第
１図に示すように、閉鎖部３４ａの脚部３８が設けられ
ており、この脚部３８には、上記の段部３７により係止
される係止部３８ａが形成されている。なお、脚部３８
は少なくとも一部が多角形の断面を有している。The hole 35 has a stepped portion 37 facing the bottom side, that is, the lower side in FIG. As shown in FIG. 1, a leg portion 38 of a closing portion 34a is provided in the hole 35, and a locking portion 38a that is locked by the step portion 37 is provided in the leg portion 38. is formed. In addition, the leg portion 38
has a cross section at least partially polygonal.
この実施例にあっては、まず透光部材３３を成形する際
、第２図に示すように、第１の上部金型４１および下部
金型４２間の注入口４３から図示しない第１の溶融樹脂
を注入する。このとき、上部金型４１の底面には、上記
の表示部３１に対応して形成される凹部４１ａと、凹部
４１ａ間に設けられる突部４１ｂと、この突部４１ｂよ
り太きな突出寸法を有する突部４１ｃとが備えられてい
る。また、下部金型４２には、上下動可能なスライドビ
ン４４が備えられ、このスライドビン４４は天面に上記
の突部４１ｃが当接するとともに、突部４１ｂに当接す
る凸部４４ａを有している。In this embodiment, when molding the light-transmitting member 33, as shown in FIG. Inject the resin. At this time, the bottom surface of the upper mold 41 has a recess 41a formed corresponding to the display section 31, a protrusion 41b provided between the recesses 41a, and a protrusion dimension that is thicker than the protrusion 41b. A protrusion 41c having a protrusion 41c is provided. Further, the lower mold 42 is equipped with a slide bin 44 that is movable up and down, and this slide bin 44 has a top surface in which the above-mentioned protrusion 41c abuts, and a protrusion 44a which abuts against the protrusion 41b. ing.
このような状態で上記の第１の溶融樹脂により、上部金
型４１および下部金型４２間に形成される図示しないキ
ャビティを充填した後、第２図に示すように、硬化した
透光部材３３を得るようになっている。そして、透光部
材３３から第１の上部金型４１を取外すとともに、スラ
イドビン４４を所定寸法だけ下降させて、スライドビン
４４の天面を突出部１９の底面より下方まで移動させる
。After filling the cavity (not shown) formed between the upper mold 41 and the lower mold 42 with the first molten resin in this state, as shown in FIG. It is now possible to obtain Then, the first upper mold 41 is removed from the transparent member 33, and the slide bin 44 is lowered by a predetermined distance to move the top surface of the slide bin 44 to below the bottom surface of the protrusion 19.
その結果、閉鎖部３２ａの外側に孔３６が形成されると
ともに、閉鎖部３２ａに段部３７を有する孔３５が形成
されている。As a result, a hole 36 is formed on the outside of the closing portion 32a, and a hole 35 having a stepped portion 37 is formed in the closing portion 32a.
次いで、透光部材３３の外側に外形部材３４を一体に成
型する際、第４図に示すように第２の上部金型４５を透
光部材３３上に配置した状態で、第２の上部金型４５お
よび下部金型４２間の注入口４６から図示しない第２の
溶融樹脂を注入する。Next, when integrally molding the external member 34 on the outside of the light-transmitting member 33, as shown in FIG. A second molten resin (not shown) is injected from the injection port 46 between the mold 45 and the lower mold 42 .
このとき、第２の溶融樹脂の一部は、孔３６、スライド
ビン４４の天面と透光部材３３の底面との間に形成され
る連通部４７、および孔３５を介して閉鎖部３４ａの部
分に到達するとともに、孔３５内で係止部３８ａを有す
る脚部３８を形成するようになっている。このようにし
て第２の溶融樹脂で上部金型４５および透光部材１間な
どに形成される図示しないキャビティを充填して硬化さ
せた後、第２の上部金型４５および下部金型４２からキ
ートップを取り出す。そして、カッタ等により台部３２
の底面の延長線上で、連通部４７内で第２の溶融樹脂が
硬化したブロック４８を切断して除去して、第１図に示
すようにキートップを得るようになっている。At this time, a part of the second molten resin passes through the hole 36, the communication portion 47 formed between the top surface of the slide bin 44 and the bottom surface of the transparent member 33, and the hole 35 to the closing portion 34a. The leg portion 38 having a locking portion 38a is formed within the hole 35. After filling and hardening the cavity (not shown) formed between the upper mold 45 and the light-transmitting member 1 with the second molten resin in this way, the second molten resin is poured into the second upper mold 45 and the lower mold 42. Take out the key top. Then, use a cutter or the like to remove the base portion 32.
The block 48 in which the second molten resin has hardened within the communication portion 47 is cut and removed on the extension line of the bottom surface of the key top, as shown in FIG. 1.
このように構成した実施例では、透光部材３３の表示部
３１によって囲まれる外形部材３４の閉鎖部３４ａが透
光部材３３から脱落することを確実に防止できる。また
、脚部３８は少なくとも一部が多角形の断面を有してい
ることから、カツタ等により連通部４７を切断する際に
、脚部３８が回転することがなく、この脚部３８が切断
されることを防止できる。In the embodiment configured in this way, it is possible to reliably prevent the closing portion 34a of the external member 34 surrounded by the display portion 31 of the light-transmitting member 33 from falling off from the light-transmitting member 33. Further, since at least a portion of the leg portion 38 has a polygonal cross section, the leg portion 38 does not rotate when cutting the communication portion 47 with a cutter or the like, and the leg portion 38 is cut. You can prevent this from happening.
［発明の効果］
本発明は以上のように構成したので、透光部材の表示部
によって囲まれる外形部材の閉鎖部が透光部材から脱落
することを確実に防止でき、したがって、このような閉
鎖部の脱落に伴い透光部材の台部が露出して見苦しくな
ることを防止できる。[Effects of the Invention] Since the present invention is configured as described above, it is possible to reliably prevent the closing part of the external member surrounded by the display part of the light-transmitting member from falling off from the light-transmitting member. It is possible to prevent the base part of the light-transmitting member from being exposed and becoming unsightly due to the part falling off.
第１図ないし第４図は本発明のキートップの一実施例を
説明する図で、第１図はキートップの断面図、第２図は
透光部材を成形する工程を説明する断面図、第３図は第
１の上部金型を取外した状態を示す断面図、第４図は外
形部材を成形する工程を説明する断面図、第５図ないし
第８図は従来のキートップを説明する図で、第５図はキ
ートップの断面図、第６図は透光部材を成形する工程を
説明する断面図、第７図は第６図のスライドビンの位置
を示す要部斜視図、第８図は外形部材を成形する工程を
説明する断面図である。
３１・・・・・・表示部、３２・・・・・・台部、３３
・・・・・・透光部材、３４・・・・・・外形部材、３
４ａ・・・・・閉鎖部、３５．３６・・・・・・孔、３
７・・・・・・段部、３８・・・・・・脚部、３８ａ・
・・・・係止部。
第１図
４′４
＠３図
第４図
第５図1 to 4 are diagrams illustrating an embodiment of the key top of the present invention, where FIG. 1 is a sectional view of the key top, and FIG. 2 is a sectional view illustrating the process of molding a transparent member. Fig. 3 is a sectional view showing the state with the first upper mold removed, Fig. 4 is a sectional view illustrating the process of molding the external member, and Figs. 5 to 8 are illustrating conventional key tops. In the figures, FIG. 5 is a sectional view of the key top, FIG. 6 is a sectional view explaining the process of molding the transparent member, FIG. 7 is a perspective view of the main part showing the position of the slide bin in FIG. 6, and FIG. FIG. 8 is a sectional view illustrating the process of molding the external member. 31...Display part, 32...Base part, 33
......Transparent member, 34...Outline member, 3
4a... Closing part, 35.36... Hole, 3
7... Step part, 38... Leg part, 38a.
...Locking part. Figure 1 4'4 @ Figure 3 Figure 4 Figure 5
Claims (1)
して設けられる台部を有する透光部材と、この透光部材
上に成型され上記台部を覆う外形部材とからなり、上記
表示部を内部から照光するようにしたキートップにおい
て、上記台部に、上記表示部によつて囲まれる上記外形
部材の閉鎖部と上記台部の底面側とを連通するとともに
、該底面側に対向する段部を有する孔を設けて、この孔
内に、上記段部により係止される係止部を有し、上記閉
鎖部から突出して形成される脚部を設けたことを特徴と
するキートップ。The display portion includes a display portion exposed on the surface, a light-transmitting member having a base portion on which the display portion projects from the top surface, and an external member molded on the light-transmitting member to cover the base portion. In the key top which is illuminated from the inside, the base part is connected to the closed part of the external member surrounded by the display part and the bottom side of the base part, and the key top is opposite to the bottom side. A key top characterized in that a hole having a stepped portion is provided, a locking portion that is locked by the stepped portion is provided in the hole, and a leg portion that is formed to protrude from the closing portion is provided. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29085190A JP2672707B2 (en) | 1990-10-30 | 1990-10-30 | Key top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29085190A JP2672707B2 (en) | 1990-10-30 | 1990-10-30 | Key top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04166315A true JPH04166315A (en) | 1992-06-12 |
| JP2672707B2 JP2672707B2 (en) | 1997-11-05 |
Family
ID=17761309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29085190A Expired - Lifetime JP2672707B2 (en) | 1990-10-30 | 1990-10-30 | Key top |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2672707B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001195A (en) * | 2005-06-24 | 2007-01-11 | Gifu Plast Ind Co Ltd | Method for molding synthetic resin injection molded product and injection mold apparatus |
| JP2010158339A (en) * | 2009-01-07 | 2010-07-22 | Sanshin Kako Kk | Patterned two-color mold dish and method for manufacturing the same |
-
1990
- 1990-10-30 JP JP29085190A patent/JP2672707B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001195A (en) * | 2005-06-24 | 2007-01-11 | Gifu Plast Ind Co Ltd | Method for molding synthetic resin injection molded product and injection mold apparatus |
| JP2010158339A (en) * | 2009-01-07 | 2010-07-22 | Sanshin Kako Kk | Patterned two-color mold dish and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2672707B2 (en) | 1997-11-05 |
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