JPH02289323A - Rotary core device in molding machine - Google Patents
Rotary core device in molding machineInfo
- Publication number
- JPH02289323A JPH02289323A JP11044189A JP11044189A JPH02289323A JP H02289323 A JPH02289323 A JP H02289323A JP 11044189 A JP11044189 A JP 11044189A JP 11044189 A JP11044189 A JP 11044189A JP H02289323 A JPH02289323 A JP H02289323A
- Authority
- JP
- Japan
- Prior art keywords
- sprue
- rotating core
- rotary core
- core
- mold
- 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.)
- Pending
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 abstract description 7
- 230000037431 insertion Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は成形機、特に射出成形機における回転コア装置
に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a rotating core device in a molding machine, particularly an injection molding machine.
(ロ) 従来の技術
従来、内部に略円弧状の空間を有する成形品を射出成形
するのに、上記円弧を回動軌跡とし、かつ、抜は勾配を
形成した回転コアが用いられている。(B) Prior Art Conventionally, in order to injection mold a molded product having a substantially arc-shaped space inside, a rotating core having the circular arc as a rotation locus and a draft having a slope has been used.
そして、この回転コアを回動させるのに、油圧シリンダ
を用いるもの、アンギュラ−ポスト等の機械的駆動によ
るものとがあった。To rotate this rotating core, there are those that use a hydraulic cylinder and those that use mechanical drive such as an angular post.
(ハ) 発明が解決しようとする課題
ところが、いずれも型抜きが円滑に行い難く、また、中
子回動機構が複雑となり、従って型全体の構造も複雑と
なり、更に、成形品の取出しに際し、素材をキャビティ
内に射出する湯口を別途に切断する必要があり、これが
原因で射出成形のサイクルを遅らせることになり、また
回転コア中に冷却水通路を形成することも構造上困難で
あるという欠点があった。(c) Problems to be solved by the invention However, in both cases, it is difficult to perform mold removal smoothly, the core rotation mechanism is complicated, and therefore the structure of the entire mold is also complicated, and furthermore, when taking out the molded product, The disadvantage is that the sprue that injects the material into the cavity must be cut separately, which slows down the injection molding cycle, and it is structurally difficult to form cooling water passages in the rotating core. was there.
(ニ) 課題を解決するための手段
本発明では、複数個の分割型で構成されたキャビティ中
に、分割型に設けた回転コア軸を中心として回動自在と
した回転コアを挿入し、上記キャビティ中に注入した熱
可塑性の合成樹脂素材により略円弧状空間を有する成形
品を成形すべく構成すると共に、上記回転コアを、回動
により成形品から抜去、型抜きすべく構成した成形機に
おける回転コア装置において、回転コアの周側に係合突
部を設け、同係合突部に可動型を係合し、可動型の移動
によって係合突部を介して回転コアに回動作動を生起さ
せるように構成してなることを特徴とする成形機におけ
る回転コア装置を提供せんとするものである。(d) Means for Solving the Problems In the present invention, a rotary core rotatable about a rotary core axis provided in the divided molds is inserted into a cavity composed of a plurality of divided molds, and the above-mentioned A molding machine configured to mold a molded product having a substantially arc-shaped space using a thermoplastic synthetic resin material injected into a cavity, and configured to remove the rotary core from the molded product by rotation. In the rotating core device, an engaging protrusion is provided on the circumferential side of the rotating core, a movable mold is engaged with the engaging protrusion, and movement of the movable mold causes rotational movement to the rotary core via the engaging protrusion. It is an object of the present invention to provide a rotating core device for a molding machine, which is characterized in that it is configured to cause the rotation of the core to occur.
また、キャビティ中に、分割型によって合成樹脂素材注
入のための湯口を形成する湯口形成部を摺動自在に設け
、回動によって回転コアを成形品から抜去り、型抜きす
る際に回転コアの周側に設けた当接部を湯口形成部の一
側に当接せしめ、同湯口形成部を摺動させて湯口を閉塞
し、切断すべく構成したことにも特徴を有する。In addition, a sprue forming part that forms a sprue for injecting synthetic resin material is slidably provided in the cavity using a split mold, and the rotary core is removed from the molded product by rotation. Another feature is that the contact portion provided on the circumferential side is brought into contact with one side of the sprue forming portion, and the sprue is slid to close and cut the sprue.
(ホ) 実施例
本発明を、水栓便器等に用いられるポールタップのバル
ブ部品(1)を成形する型(^)を実施例として説明す
る。(E) Embodiment The present invention will be explained using a mold (^) for molding a valve part (1) of a pole tap used for a water faucet toilet etc. as an embodiment.
まず、本実施例で成形するバルブ部品(1)について説
明する。First, the valve component (1) molded in this example will be explained.
第1図〜第2図は、バルブ部品(1)の側面図及び平面
図であり、(2)はボールバルブ(3)が当接する弁座
、(4)はジスターンの底板(5)を貫通する取付部、
(6)は取付ナツト(7)を螺着するためのネジ部であ
る。Figures 1 and 2 are a side view and a plan view of the valve part (1), in which (2) is the valve seat that the ball valve (3) comes into contact with, and (4) is the passage through the bottom plate (5) of the distern. mounting part,
(6) is a threaded portion for screwing the mounting nut (7).
(8)はオーバーフローバイブであり、弁座(2)の下
方空間と、連通管部(9)を介して連通している。(8) is an overflow vibe, which communicates with the space below the valve seat (2) via a communication tube (9).
連通管部(9)は、弁座(2)の開口面を傾斜させて、
この傾斜開口面の上端下方側面に、同連通管部(9)を
突設し、内部に略円弧状に湾曲し、かつ、弁座(2)側
から連通管部(9)の先端に設けたバイブ取付部(10
)側に向かって先細りに形成された連通孔(11)を有
している。The communication pipe part (9) has an opening surface of the valve seat (2) inclined,
The communication pipe part (9) is provided protruding from the lower side surface of the upper end of this inclined opening surface, curved inward in a substantially arc shape, and provided from the valve seat (2) side to the tip of the communication pipe part (9). Vibrator mounting part (10
) has a communication hole (11) tapered toward the side.
なお、後述するが、上記連通孔(11)は弁座(2)の
傾斜開口面を介して挿入された回転コア(26)によっ
て成形されるものである。As will be described later, the communication hole (11) is formed by a rotating core (26) inserted through the inclined opening surface of the valve seat (2).
第3図は上記バルブ部品(1)を成形するための型(^
)を示しており、同型(A)は、複数個の分割型、すな
わち、射出成形機(図示せず)に直結した固定型(20
)と、同固定型(20)に左右方向に摺動自在に挿通し
た左右ガイド(21)(21)上を摺動するストッパー
(22)と、左右ガイド(21)(21)に直交して突
設した前後ガイド(34)上を摺動する前後型(23)
(23)と、前後型(26)(23)の左方に位置して
左右ガイド(21)(21)上を摺動する左型(24)
と、左型(24)に前後方向に軸架した回転コア軸(2
5)に回動自在に枢支された回転コア(26)と、左型
(24)の左方に位置して左右ガイド(21)(21)
上を摺動する可動型取付板(27)とで構成されている
。Figure 3 shows the mold (^) for molding the above valve part (1).
), and the same mold (A) consists of a plurality of split molds, that is, a fixed mold (20
), a stopper (22) that slides on the left and right guides (21) (21) inserted into the fixed mold (20) so as to be slidable in the left and right direction, and a stopper (22) that slides on the left and right guides (21) (21). Front and rear type (23) sliding on protruding front and rear guides (34)
(23), and the left mold (24) which is located to the left of the front and rear molds (26) and (23) and slides on the left and right guides (21) (21).
and a rotating core shaft (2) mounted longitudinally on the left mold (24).
A rotary core (26) rotatably supported on the left mold (24) and left and right guides (21) (21) located on the left side of the left mold (24).
It consists of a movable mounting plate (27) that slides on top.
固定型(20)には射出成形機から後述のキャビティ(
C)中に溶融した合成樹脂素材を注入するための射出口
(30)と、同射出口(30)中に挿入したホットスプ
ル(3[)と、成形品のバルブ部品(1)取付部(4)
の内部空間を形成する取付部コア(32)が装着されて
いる。The fixed mold (20) has a cavity (described later) from the injection molding machine.
C) An injection port (30) for injecting the molten synthetic resin material into the injection port (30), a hot sprue (3[) inserted into the injection port (30), and a mounting portion (4) of the valve part (1) of the molded product. )
A mounting portion core (32) defining an internal space is attached.
ストッパー(22)には、取付部(4)の右端を形成す
る右型(33)を配設している。The stopper (22) is provided with a right mold (33) that forms the right end of the mounting portion (4).
前後型(23)(23)を前後ガイド<34)上を前後
方向に摺動させて、前後型(23>(23)を型合わせ
したときは、バルブ部品(1)を成形するためのキャビ
ティ(C)を形成し、前後型(23)(23)を分解し
て成形後のバルブ部品(1)を取出すようにしている。When the front and rear molds (23) (23) are aligned by sliding the front and rear molds (23) in the front and rear direction on the front and rear guide <34), a cavity for molding the valve part (1) is formed. (C) is formed, and the front and rear molds (23) (23) are disassembled to take out the molded valve component (1).
また、前後型(23)(23>には取付部(4)のネジ
部(6)を形成するためのネジ型(35) (35)を
装着している。Furthermore, screw molds (35) (35) for forming the threaded portion (6) of the mounting portion (4) are attached to the front and rear molds (23) (23>).
左型(24)には、射出口(30)からキャビティ(C
)までの合成樹脂素材の流通路(r)を形成する左右方
向に摺動自在の湯口形成部(36)と、バルブ部品(1
)の弁座(2)の当り面と同弁座(2)の内部空間を成
形する弁座コア(37)と、パイプ取付部(10)の内
部空間を成形するバイブ取付部コア(36)とを装着し
ている。The left mold (24) has a cavity (C) from the injection port (30).
) and the valve part (1).
) The valve seat core (37) forms the contact surface of the valve seat (2) and the internal space of the valve seat (2), and the vibe mounting part core (36) forms the internal space of the pipe mounting part (10). It is equipped with.
また、左型(24)に軸架した回転コア軸(25)には
、回転コア(26)の基部(40)が回動自在に軸支さ
れており、同基部(40)の上部から回転アーム(41
)を右方向に突設し、同回転アーム(41)の先端から
下方向に前記の連通孔(11)を成形するための挿入部
(42)を突設して、側面視で略コ字形状の回転コア(
26)を形成している。In addition, a base (40) of a rotary core (26) is rotatably supported on a rotary core shaft (25) mounted on the left mold (24), and rotates from the top of the base (40). Arm (41
) is provided to protrude to the right, and an insertion portion (42) for forming the communication hole (11) is provided to protrude downward from the tip of the rotary arm (41), so that it is approximately U-shaped when viewed from the side. Rotating core of the shape (
26).
挿入部(42)は回転コア軸(25)を中心とした略円
弧状に形成されており、挿入部(42)の回転アーム(
41)側から先端側に向かって先細りに形成して、挿入
部(42)抜取り時の抜き勾配を得ている。The insertion portion (42) is formed in a substantially arc shape centered on the rotating core shaft (25), and the rotating arm (42) of the insertion portion (42)
41) is tapered toward the distal end to provide a draft angle when the insertion portion (42) is removed.
また、回転アーム(41)の基部上面に係合部(43)
を上方向に突設し、同係合部(43)を可動型取付板(
27)に固着した係止部(44)に係合させ、可動型取
付板(27)の左方摺動により、回転コア(2も)を反
時計方向に回動させるようにしている。In addition, an engaging portion (43) is provided on the upper surface of the base of the rotating arm (41).
protrudes upward, and the engaging portion (43) is attached to the movable mounting plate (
27), and by sliding the movable mounting plate (27) to the left, the rotary core (2) is rotated counterclockwise.
また、回転コア(26)の挿入部(42)の回転アーム
(41)への取付基部右側面に当接部(45)を形成す
ると共に、前記湯口形成部(36)の左側面に摺接部(
4B)を突設して、上記回転コア(26)の反時計方向
の回動時に当接部(45〉と摺接部(46)とが摺接し
カム作用により、湯口形成部(36)を右方向に摺動さ
せるようにしでおり、この右方向摺動によって流通路(
「)と、成形後のバルブ部品(1)とを連結した湯口(
47)をバルブ部品(1)側で切断するようにしている
。Further, a contact portion (45) is formed on the right side surface of the attachment base of the insertion portion (42) of the rotating core (26) to the rotating arm (41), and a contact portion (45) is formed in sliding contact with the left side surface of the sprue forming portion (36). Department (
4B) is provided in a protruding manner so that when the rotary core (26) rotates counterclockwise, the contact portion (45> and the sliding contact portion (46) come into sliding contact and the sprue forming portion (36) is opened by a cam action. It is designed to slide to the right, and this rightward sliding opens the flow path (
) and the sprue (
47) is cut on the valve component (1) side.
図中、(50)はエジェクタ、(51)は冷却水通路、
(53)はシフティロックである。In the figure, (50) is an ejector, (51) is a cooling water passage,
(53) is a shifty lock.
なお、上記の型(A)は射出口(30)を中心として上
下対称的に配設され、同時に2個のバルブ部品(1)が
成形されるように構成されている。The mold (A) is arranged vertically symmetrically around the injection port (30), and is configured to mold two valve parts (1) at the same time.
本発明の実施例は上記のように構成されており、その作
動について、第3図〜第7図を参照して説明する。The embodiment of the present invention is constructed as described above, and its operation will be explained with reference to FIGS. 3 to 7.
第3図は型(A)を組立て、形成されたキャビティ(C
)中に、溶融した合成樹脂素材を射出成形機から注入し
た状態を示しており、この状態で合成樹脂素材が冷却さ
れ固化して製品のバルブ部品(1)に成形されている。Figure 3 shows the mold (A) assembled and the cavity (C) formed.
) shows a state in which a molten synthetic resin material is injected from an injection molding machine, and in this state the synthetic resin material is cooled and solidified to be molded into the valve part (1) of the product.
次に第4図で示すように、ストッパー(22)寄りの左
方の可動部材を一体的に左方向に移動させて、射出口(
30)と、取付部コア(32)とをそれぞれの内部空間
から半ば抜き取る。Next, as shown in Fig. 4, the left movable member near the stopper (22) is integrally moved to the left, and the injection port (
30) and the mounting portion core (32) are partially removed from their respective internal spaces.
次いで、第5図で示すように、可動型取付板(27〉を
左方向に移動させて係止部(44)と係合部(43)の
係合を介して回転コア(26)を反時計方向に回動させ
、バルブ部品(1)の連通孔(11)から回転コア(2
6)の挿入部(42)を抜き取る。Next, as shown in FIG. 5, the movable mounting plate (27> is moved to the left and the rotating core (26) is reversed through the engagement between the locking part (44) and the engaging part (43). Rotate clockwise and insert the rotating core (2) from the communication hole (11) of the valve part (1).
6) Remove the insertion part (42).
この回転コア(26)の反時計方向回動時に、回転コア
(26)の当接部(45)と、湯口形成部(36)の摺
接部(4B)との摺接により、湯口形成部(36)を右
方向に移動させて前記流通路(「)と製品のバルブ部品
(1)との間の湯口(47)を切断する。When the rotary core (26) rotates in the counterclockwise direction, the contact portion (45) of the rotary core (26) and the sliding contact portion (4B) of the sprue forming portion (36) come into sliding contact, causing the sprue forming portion to (36) to the right to cut off the sprue (47) between the flow path (') and the valve part (1) of the product.
次いで、第6図で示すように、左型(24)と可動型取
付板(27)とを左方向にに移動させて、弁座コア(3
7)を弁座り2)の内部空間から抜き取る。Next, as shown in FIG. 6, the left mold (24) and the movable mold mounting plate (27) are moved to the left, and the valve seat core (3
7) is extracted from the internal space of the valve seat 2).
次いで、第7図で示すように、前後型(23) (23
)を前後ガイド(34)上を摺動させて分解し、型(A
)からバルブ部品(1)を完全に分離させ、キャビティ
(C)中から取り出せるようにする。Next, as shown in Fig. 7, the front and rear types (23) (23
) on the front and rear guides (34) to disassemble the mold (A
) to completely separate the valve part (1) from the cavity (C) so that it can be removed from the cavity (C).
また、エジェクタ(50)を右方向に作動させて流通路
(「)中で固化した合成樹脂を除去する。Furthermore, the ejector (50) is operated in the right direction to remove the synthetic resin solidified in the flow path (').
また、上記の逆手順で型(^)を組立ててキャビティ(
C)を形成し、同キャビティ(C)中に射出成形機から
溶融した合成樹脂素材を注入し、上記手順で繰返しバル
ブ部品(1)を成形することができる。Also, assemble the mold (^) by reversing the above steps and fill the cavity (
C) is formed, a molten synthetic resin material is injected from an injection molding machine into the cavity (C), and the above procedure can be repeated to mold the valve component (1).
上記のように、本発明の実施例では、回転コア(26)
と可動型取付板(27)とに設けた係合部(43)と係
止部(44)との係合を介して、回転コア(26)を回
動させるようにしたので、他に作動部材を要せず回転コ
ア(26)を駆動するための機構が簡単になり、このt
a構が簡単であることから、回転コア中に冷却水通路(
51)を形成するのも容易になる。As mentioned above, embodiments of the invention include a rotating core (26)
The rotary core (26) is rotated through the engagement between the engaging portion (43) and the locking portion (44) provided on the movable mounting plate (27), so that other operations are not required. The mechanism for driving the rotating core (26) is simplified without requiring any members, and this t
Since the a structure is simple, cooling water passages (
51) becomes easy to form.
更に、回転コア(26)の一部に設けた当接部(45)
が、回転コア(26)抜去時の回動により、移動可能の
湯口形成部(36)の摺接部(46)に摺接して、同湯
口形成部(36)を移動させて湯口(47)を切断する
ので、別途湯口切断作業を要せず、成形作業の省力化と
、同作業のサイクルタイムを短縮して、作業能率を向上
させることができる。Furthermore, a contact portion (45) provided on a part of the rotating core (26)
However, due to the rotation when the rotating core (26) is removed, it comes into sliding contact with the sliding contact portion (46) of the movable sprue forming portion (36), and moves the sprue forming portion (36) to form the sprue (47). Since the mold is cut, there is no need for a separate sprue cutting operation, which saves labor in the molding operation, shortens the cycle time of the same operation, and improves work efficiency.
(へ) 効 果
本発明によれば、回転コアを回動させるのに、回転コア
に設けた係合部によって行うようにしているので、回転
コアを駆動するための機構が簡単になり、且つ成形機の
小型化が可能となる。また、回転コア中に冷却水通路を
形成するのが容易になる。(F) Effects According to the present invention, since the rotating core is rotated by the engaging portion provided on the rotating core, the mechanism for driving the rotating core is simplified. It becomes possible to downsize the molding machine. Moreover, it becomes easy to form a cooling water passage in the rotating core.
更に、回転コアの一部に設けた当接部が、回転コア抜去
時の回転コアの回動により、分割型に対して移動可能の
湯口形成部に当接して、同湯口形成部を移動させて湯口
を切断するので、別途湯口切断作業を要せず、成形作業
の省力化と、同作業のサイクルタイムを短縮して、作業
能率を向上させることができる。Further, the contact portion provided on a part of the rotating core comes into contact with the sprue forming portion that is movable with respect to the split mold due to the rotation of the rotating core when the rotating core is removed, and the sprue forming portion is moved. Since the sprue is cut using the sprue, there is no need for a separate sprue cutting operation, which saves labor in the molding operation, shortens the cycle time of the same operation, and improves work efficiency.
第1図は成形品としてのバルブ部品の側面図、第2図は
同平面図、第3図は本発明による型の一#断面側面図、
第4図〜第7図は型の作動説明図(一部所面)。
(^):型
(C):キャビテイ
(25) :回転コア輔
(26):
(36):
(43):
(45):
(47):
回転コア
湯口形成部
係合部
当接部
湯口
第2図FIG. 1 is a side view of a valve component as a molded product, FIG. 2 is a plan view of the same, and FIG. 3 is a cross-sectional side view of a mold according to the present invention.
Figures 4 to 7 are explanatory diagrams (partially) of the operation of the mold. (^): Mold (C): Cavity (25): Rotating core (26): (36): (43): (45): (47): Rotating core sprue forming part engaging part contact part sprue No. Figure 2
Claims (1)
、分割型に設けた回転コア軸(25)を中心として回動
自在とした回転コア(26)を挿入し、上記キャビティ
(C)中に注入した熱可塑性の合成樹脂素材により略円
弧状空間を有する成形品を成形すべく構成すると共に、
上記回転コア(26)を、回動により成形品から抜去、
型抜きすべく構成した成形機における回転コア装置にお
いて、回転コア(26)の周側に係合突部(43)を設
け、同係合突部(43)に可動型を係合し、可動型の移
動によって係合突部(43)を介して回転コア(26)
に回動作動を生起させるように構成してなることを特徴
とする成形機における回転コア装置。 2)キャビティ(C)中に、分割型によって合成樹脂素
材注入のための湯口(47)を形成する湯口形成部(3
6)を摺動自在に設け、回動によって回転コア(26)
を成形品から抜去り、型抜きする際に回転コア(26)
の周側に設けた当接部(45)を湯口形成部(36)の
一側に当接せしめ、同湯口形成部(36)を摺動させて
湯口(47)を閉塞し、切断すべく構成してなる成形機
における回転コア装置。[Claims] 1) A rotary core (26) rotatable about a rotary core shaft (25) provided in the divided molds is inserted into a cavity (C) composed of a plurality of divided molds. The thermoplastic synthetic resin material injected into the cavity (C) is configured to mold a molded product having a substantially arcuate space, and
The rotating core (26) is removed from the molded product by rotation,
In a rotating core device in a molding machine configured for die cutting, an engaging protrusion (43) is provided on the circumferential side of the rotating core (26), a movable die is engaged with the engaging protrusion (43), and the movable Rotating core (26) via engagement protrusion (43) by movement of the mold
1. A rotating core device for a molding machine, characterized in that the rotating core device is configured to generate a rotational motion in a molding machine. 2) A sprue forming part (3) that forms a sprue (47) for injecting a synthetic resin material using a split mold in the cavity (C).
6) is slidably provided, and by rotation, the rotating core (26)
is removed from the molded product and the rotating core (26)
The abutting part (45) provided on the circumferential side of the sprue is brought into contact with one side of the sprue forming part (36), and the sprue forming part (36) is slid to close the sprue (47) and cut. A rotating core device in a molding machine consisting of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11044189A JPH02289323A (en) | 1989-04-28 | 1989-04-28 | Rotary core device in molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11044189A JPH02289323A (en) | 1989-04-28 | 1989-04-28 | Rotary core device in molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02289323A true JPH02289323A (en) | 1990-11-29 |
Family
ID=14535801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11044189A Pending JPH02289323A (en) | 1989-04-28 | 1989-04-28 | Rotary core device in molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02289323A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49110479A (en) * | 1973-02-27 | 1974-10-21 | ||
| JPS5177656A (en) * | 1974-12-27 | 1976-07-06 | Aron Kasei Kk | Daiyafuramubenno ryutaitsurogawahaujinguseikeisochi |
-
1989
- 1989-04-28 JP JP11044189A patent/JPH02289323A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49110479A (en) * | 1973-02-27 | 1974-10-21 | ||
| JPS5177656A (en) * | 1974-12-27 | 1976-07-06 | Aron Kasei Kk | Daiyafuramubenno ryutaitsurogawahaujinguseikeisochi |
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