JPH0371966B2 - - Google Patents
Info
- Publication number
- JPH0371966B2 JPH0371966B2 JP13229284A JP13229284A JPH0371966B2 JP H0371966 B2 JPH0371966 B2 JP H0371966B2 JP 13229284 A JP13229284 A JP 13229284A JP 13229284 A JP13229284 A JP 13229284A JP H0371966 B2 JPH0371966 B2 JP H0371966B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- mold
- main body
- molded
- injection
- 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.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 33
- 239000000057 synthetic resin Substances 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 238000001746 injection moulding Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0017—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は本体と、本体に対して回動あるいは
駆動可能に組付けられた移動部材とよりなる合成
樹脂成形部品の製造方法に関し、詳しくはたとえ
ば開閉戸の戸車などの開閉戸側に固定される本体
と、本体に対して回転可能に軸着された転子（移
動部材）とよりなる。合成樹脂成形部品の製造方
法に係わるものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method of manufacturing a synthetic resin molded part comprising a main body and a movable member attached to the main body so as to be rotatable or drivable. For example, it consists of a main body fixed to the door side such as a door wheel of an opening/closing door, and a trochanter (moving member) rotatably attached to the main body. This relates to a method of manufacturing synthetic resin molded parts.
（従来技術）
従来、たとえば合成樹脂製の戸車は本体と、本
体に軸着された転子とが別々に製造され、両部材
の製造後に両者の組付けが行なわれて戸車とされ
るが、部品の組付け工程が必要であつた。(Prior Art) Conventionally, for example, a door wheel made of synthetic resin has a main body and a trochanter attached to the main body separately, and after both parts are manufactured, they are assembled to form a door wheel. A process for assembling the parts was required.
（発明が解決しようとする問題点）
このため、この発明は合成樹脂製の戸車を製造
するに際し、部品組付け工程の面倒な作業工程を
省略しようとしたものである。また、戸車のほか
に、本体と移動部材が回転可能に軸着された合成
樹脂成形部品、あるいは本体に対し移動部材が摺
動可能に組付けられた合成樹脂成形部品を、二種
類の合成樹脂の射出成形により、組付け状態で形
成し得るようにしたものである。(Problems to be Solved by the Invention) Therefore, the present invention attempts to omit the troublesome work process of assembling parts when manufacturing a door roller made of synthetic resin. In addition to the door roller, we also use two types of synthetic resin molded parts, such as a synthetic resin molded part in which the main body and a moving member are rotatably attached, or a synthetic resin molded part in which the moving member is slidably attached to the main body. It can be formed in an assembled state by injection molding.
（問題点を解決するための手段）
本発明者は合成樹脂製の戸車を射出成形により
製造する研究において上記欠点を解消し得る良好
な成果を得て本発明を達成したものである。すな
わち、上記した欠点を解決するために、この発明
の手段は、本体と、該本体に対して回動可能ある
いは摺動可能に組付けられた移動部材とよりなる
合成樹脂成形部品を製造するに際し、前記本体あ
るいは移動部材のいずれか一方の部材を第１の合
成樹脂にて射出成形し、次いで、前記合成樹脂と
は異なる種類でかつ非接着性の第２の合成樹脂
を、先の射出成形部品に対して射出成形し、本体
と移動部材が回動可能あるいは摺動可能に組付け
られたものとなすことにある。(Means for Solving the Problems) The present inventor achieved the present invention by obtaining good results that could eliminate the above-mentioned drawbacks in research on manufacturing synthetic resin door rollers by injection molding. That is, in order to solve the above-mentioned drawbacks, the means of the present invention provides a method for manufacturing a synthetic resin molded part consisting of a main body and a movable member rotatably or slidably assembled to the main body. , either the main body or the movable member is injection molded with a first synthetic resin, and then a second synthetic resin of a different type and non-adhesive than the synthetic resin is injection molded. The purpose is to injection mold the parts so that the main body and the movable member are rotatably or slidably assembled.
（作 用）
本発明は、本体と移動部材とよりなる合成樹脂
成形部品の製造において、本体と移動部材は種類
が異なりかつ非接着性の合成樹脂にて形成される
もので、組付け状の成形品となり、移動部材は本
体と接合されず移動可能なものとなる。(Function) In the production of a synthetic resin molded part consisting of a main body and a movable member, the main body and the movable member are made of different types of non-adhesive synthetic resins, and the present invention provides an assembly-type molded part. It becomes a molded product, and the movable member is movable without being joined to the main body.
（実施例）
次に本発明の一実施例を説明するが、まず、先
に本発明の実施に使用する装置例の概略を第１図
〜第４図を主体として説明する。第１図は反転式
の射出成形機１を示すものであり、従来の反転式
射出成形機の成形型部分を変更改良することによ
り使用される。指示部材２，２に支承された支軸
３には反転板４が取付けられ、反転板４には１次
成形用の第１成形型５、及び２次成形用の第２成
形型５Ａが180度の対称位置に配置されて固着さ
れている。１０は第１成形型５に型合せされる第
１組付け型であつて、第１成形型５とともに戸車
３４支持部材３１用の第１キヤビテイ１３が構成
され１次成形に使用される。第１組付け型１０は
ガイド部材１９，１９にガイドされて移動する可
動板２１に固着されていて、該可動板２１は固定
板２０左方側の油圧シリンダ（図示せず。）のシ
リンダロツド２２の作動にて可動される。なお、
第１キヤビテイ１３にて成形された成形品は第１
組付け型１０が外された後は、第１成形型５に嵌
着した状態のまま、180度反転されて第２成形型
５Ａとされる。(Example) Next, an example of the present invention will be described. First, an outline of an example of an apparatus used for carrying out the present invention will be explained mainly with reference to FIGS. 1 to 4. FIG. 1 shows an inversion type injection molding machine 1, which is used by modifying and improving the mold portion of a conventional inversion type injection molding machine. A reversing plate 4 is attached to the support shaft 3 supported by the indicating members 2, 2, and the reversing plate 4 has a first mold 5 for primary molding and a second mold 5A for secondary molding at 180°. They are placed and fixed in symmetrical positions. Reference numeral 10 denotes a first assembly mold that is fitted to the first mold 5, which together with the first mold 5 constitutes a first cavity 13 for the door wheel 34 support member 31, and is used for primary molding. The first assembly mold 10 is fixed to a movable plate 21 that moves while being guided by guide members 19, 19, and the movable plate 21 is attached to a cylinder rod 22 of a hydraulic cylinder (not shown) on the left side of the fixed plate 20. It is moved by the operation of. In addition,
The molded product molded in the first cavity 13 is
After the assembly mold 10 is removed, it is turned over 180 degrees while remaining fitted into the first mold 5 to form a second mold 5A.
一方、第２組付け型１５は第２成形型５Ａに対
して型合せされ、戸車３４の転子３３となる第２
キヤビテイ１８が構成され、２次成形に使用され
る。第２成形型５及び第２成形型５Ａには転子３
３の支軸３３Ａを形成するためのスライド部材１
７が装置されている。スライド部材１７は第１成
形型５及び第２成形型５Ａの側部に形成されてい
て、油圧シリンダ１７Ａによりロツド状の部材が
出入り作動されるものであつて、第１成形型５と
第１組付け型１０により第１キヤビテイ１３が形
成される際（１次成形の際）には該第１キヤビテ
イ１３内に突出され（第４図右側部分参照）、第
２成形型５Ａと第２組付け型１５により第２キヤ
ビテイ１８が形成される際（２次成形の際）に
は、スライド部材１７はその油圧シリンダ１７Ａ
側に後退し、戸車３４の本体である支持部材３１
の成形品に転子３３の支軸３３Ａ形成用の軸孔３
１Ｂが形成される（第４図右側部分参照）。 On the other hand, the second assembly mold 15 is molded to the second mold 5A, and the second assembly mold 15 is molded to form the second mold 5A, which becomes the trochanter 33 of the door wheel 34.
A cavity 18 is constructed and used for secondary molding. The second mold 5 and the second mold 5A have a trochanter 3.
Slide member 1 for forming the support shaft 33A of No. 3
7 is installed. The slide member 17 is formed on the side of the first mold 5 and the second mold 5A, and is a rod-shaped member that is moved in and out by a hydraulic cylinder 17A. When the first cavity 13 is formed by the assembly mold 10 (during primary molding), it protrudes into the first cavity 13 (see the right side part of FIG. 4), and the second mold 5A and the second set are When the second cavity 18 is formed by the mold 15 (during secondary molding), the slide member 17 is moved by its hydraulic cylinder 17A.
The supporting member 31, which is the main body of the door roller 34, retreats to the side.
A shaft hole 3 for forming the support shaft 33A of the trochanter 33 is formed in the molded product.
1B is formed (see the right part of FIG. 4).
第２組付け型１５はガイド部材２５，２５にガ
イドされて移動する可動板２７に固着されてい
て、該可動板２７は固定板２６右方側の油圧シリ
ンダ（図示せず。）のシリンダロツド２８の作動
にて可動される。２３は第１キヤビテイ１３に第
１の合成樹脂を射出する第１射出ノズルであつ
て、組付けた第１組付け型１０の注入孔１２に第
１可動板２１の貫孔部２１Ａを挿通されて接続可
動にさせている。そして２９は第２キヤビテイ１
８に第２の合成樹脂を射出する第２射出ノズルで
あつて、組付けた第２組付け型１５の注入孔１６
に第２可動板２７の貫孔部２７Ａを挿通させて接
続可能にされている。なお、第１射出ノズル２３
は第１組付け型１０とともに移動され、第２射出
ノズル２９は第２組付け型１５とともに移動され
る。なお、第１成形型５の成形面には支持部材３
１のビス孔３１Ａ，３１Ａを形成するための各成
形凸起６，６が形成されている。 The second assembly mold 15 is fixed to a movable plate 27 that moves while being guided by guide members 25, 25, and the movable plate 27 is attached to a cylinder rod 28 of a hydraulic cylinder (not shown) on the right side of the fixed plate 26. It is moved by the operation of. Reference numeral 23 denotes a first injection nozzle for injecting the first synthetic resin into the first cavity 13, which is inserted through the through-hole 21A of the first movable plate 21 into the injection hole 12 of the assembled first assembly mold 10. The connection is made movable. And 29 is the second cavity 1
8 is a second injection nozzle for injecting a second synthetic resin, and is an injection hole 16 of the assembled second assembly mold 15.
The through-hole portion 27A of the second movable plate 27 is inserted into the second movable plate 27 so that the connection can be made. Note that the first injection nozzle 23
is moved together with the first assembly mold 10, and the second injection nozzle 29 is moved together with the second assembly mold 15. Note that a support member 3 is provided on the molding surface of the first mold 5.
Each molded protrusion 6, 6 for forming one screw hole 31A, 31A is formed.
次に、本発明の実施例を前記装置の作用ととも
に説明する。 Next, an embodiment of the present invention will be described along with the operation of the device.
第１成形型５と第１組付け型１０とを組付けた
第１キヤビテイ１３には第１射出ノズル２３をセ
ツトし、該第１射出ノズル２３より第１キヤビテ
イ１３内に第１の合成樹脂を射出する。本例では
ガラス繊維を（樹脂に対して33％）加えたナイロ
ンを、樹脂温225℃、射出圧150Kg／cm2にて射出し
た。第１キヤビテイ１３には第１の合成樹脂によ
り、戸車３４の支持部材３１、すなわち本体部分
が成形される。しかして第１の合成樹脂の射出後
は第１射出ノズル２３及び第１組付け型１０を外
し、支持部材３１の成形品が嵌着された第１成形
型５すなわち第２成形型５Ａは反転板４の支軸３
を中心として180度反転される。そして第２成形
型５Ａに対して第２組付け型１５が組付けられ、
戸車３４を形成するための第２キヤビテイ１８が
形成され、かつ第２射出ノズル２９が配置されて
第２キヤビテイ１８内に第２の合成樹脂が射出さ
れる。本例ではポリプロピレンを樹脂温200℃、
射出圧100Kg／cm2にて射出した。前記第１の合成
樹脂及び第２の合成樹脂は、たとえば本例のナイ
ロンとポリプロピレンのように射出成形可能でか
つ、射出成形後の両樹脂が相互に接着しない非接
合性の樹脂を選択使用することができる。 A first injection nozzle 23 is set in the first cavity 13 in which the first mold 5 and the first assembly mold 10 are assembled, and the first synthetic resin is injected into the first cavity 13 from the first injection nozzle 23. Inject. In this example, nylon to which glass fiber was added (33% based on the resin) was injected at a resin temperature of 225° C. and an injection pressure of 150 kg/cm 2 . The support member 31 of the door roller 34, that is, the main body portion, is molded in the first cavity 13 from a first synthetic resin. After the injection of the first synthetic resin, the first injection nozzle 23 and the first assembly mold 10 are removed, and the first mold 5, that is, the second mold 5A into which the molded product of the support member 31 is fitted, is inverted. Support shaft 3 of plate 4
It will be flipped 180 degrees around . Then, the second assembly mold 15 is assembled to the second mold 5A,
A second cavity 18 for forming the door roller 34 is formed, and a second injection nozzle 29 is arranged to inject a second synthetic resin into the second cavity 18. In this example, polypropylene is used at a resin temperature of 200℃.
Injection was performed at an injection pressure of 100Kg/cm 2 . The first synthetic resin and the second synthetic resin are selected from non-bonding resins that can be injection molded and do not adhere to each other after injection molding, such as nylon and polypropylene in this example. be able to.
第２キヤビテイ１８には第２の合成樹脂による
転子３３が成形される。しかる後、第２射出ノズ
ル２９及び第２組付け型１５を外し、支持部材３
１の装着孔３２に転子３３が軸着されてなる戸車
３４を得る。該戸車３４は支持部材３１部分がナ
イロン樹脂で、転子３３部分がポリプロピレンで
あり、後者は射出成形後に収縮硬化するため、転
子３３は支持部材３１の軸孔３１Ｂに支軸３３Ａ
が挿入されるとともに、支持部材３１の軸孔３１
Ｂに適度な隙間を有したものとなり、転子３３は
支持部材３１に対して回転可能である。 A trochanter 33 made of a second synthetic resin is molded in the second cavity 18 . After that, the second injection nozzle 29 and the second assembly mold 15 are removed, and the support member 3 is removed.
To obtain a door wheel 34 in which a trochanter 33 is pivotally attached to one mounting hole 32. The support member 31 part of the door roller 34 is made of nylon resin, and the trochanter 33 part is made of polypropylene. Since the latter shrinks and hardens after injection molding, the trochanter 33 is inserted into the shaft hole 31B of the support member 31 with the support shaft 33A.
is inserted, and the shaft hole 31 of the support member 31 is inserted.
B has an appropriate gap, and the trochanter 33 is rotatable with respect to the support member 31.
本例戸車３４は建て戸に装着されるが、転子３
３は支持部材３１に対して適度な自由度を有する
ので、通常の戸車と同様に使用される。 The door wheel 34 in this example is attached to a house door, but the trochanter 3
3 has a suitable degree of freedom with respect to the support member 31, so it is used in the same way as a normal door roller.
なお、前記した実施例の戸車３４においては支
持部材３１を先に射出成形し、次いで転子３３を
射出成形したが、支持部材３１及び転子３３の各
射出成形の順位は逆順位にしてもよい。 In addition, in the door roller 34 of the above-described embodiment, the support member 31 was injection molded first, and then the trochanter 33 was injection molded, but the order of injection molding of the support member 31 and the trochanter 33 may be reversed. good.
なお、本例は枠状の支持部材３１の装着孔３２
に転子３３が軸着された戸車３４の場合について
説明したが、本発明は、戸車に限るものではな
く、たとえば第１０図〜第１２図に示す移動部材
４４のように、移動子４３が支持部材４１に沿つ
て往復移動する形式のものなど、支持部材（本
体）と、該支持部材（本体）に対して回動可能あ
るいは摺動可能に組付けられた移動部材とよりな
る組付け状の合成樹脂成形部品一般に適用され
る。 Note that in this example, the mounting hole 32 of the frame-shaped support member 31 is
Although the case of the door wheel 34 to which the trochanter 33 is pivoted has been described, the present invention is not limited to the door wheel. An assembly configuration consisting of a support member (main body) and a moving member rotatably or slidably assembled to the support member (main body), such as a type that moves back and forth along the support member 41. Generally applicable to synthetic resin molded parts.
（発明の効果）
本発明は、本体あるいは移動部材のいずれか一
方の部材を第１の合成樹脂にて射出成形し、次い
で前記合成樹脂とは異なる種類でかつ非接着性の
第２の合成樹脂を、先の射出成形品に対して射出
成形するようにしたため、本体と移動部材とが組
付けられた状態の合成樹脂成形品を得ることがで
きる。そして本発明においては本体と移動部材と
の樹脂材質が異なり、相互に非接着性の樹脂を使
用しているので、両部材は一体化せず本体に対し
て移動部材が回動あるいは摺動などの所定の移動
可能な樹脂成形品を得ることができる。(Effects of the Invention) In the present invention, either the main body or the movable member is injection molded with a first synthetic resin, and then a second synthetic resin of a type different from the synthetic resin and non-adhesive is molded. Since this is injection molded onto the previous injection molded product, it is possible to obtain a synthetic resin molded product in which the main body and the moving member are assembled. In the present invention, the main body and the movable member are made of different resin materials and are made of non-adhesive resin, so the two members are not integrated and the movable member rotates or slides relative to the main body. A predetermined movable resin molded product can be obtained.
また、本発明によれば本体と移動部材が組付け
状態により得られるので、部品成形後に組付ける
従来製法の場合に較べて、部品の組付け工程が省
略でき、都合がよいものである。 Further, according to the present invention, the main body and the movable member can be obtained in an assembled state, which is convenient because the process of assembling the parts can be omitted compared to the conventional manufacturing method in which the parts are assembled after being molded.
第１図は本発明の実施に使用する装置例の説明
図、第２図は成形型を分解した状態の拡大図、第
３図は第１図−線における拡大断面図、第４
図はスライド部材の作動状態を示す拡大図、第５
図は第１キヤビテイに成形された支持部材成形品
の平断面図、第６図は第５図成形品の縦断面図、
第７図は第２キヤビテイに成形された戸車の平断
面図、第８図は第７図成形品の縦断面図、第９図
は成形された戸車の斜視図である。第１０図〜第
１２図は成形品の別例を示すものであり、第１０
図は移動部材の平面図、第１１図は第１０図
−線における断面図、第１２図は第１０図
−線における断面図である。
１……射出成形機、５……第１成形型、５Ａ…
…第２成形型、１０……第１組付け型、１３……
第１キヤビテイ、１５……第２組付け型、１８…
…第２キヤビテイ、２３……第１射出ノズル、２
９……第２射出ノズル、３１，４１……支持部
材、３３……転子、３４……戸車、４３……移動
子、４４……移動部材。
Fig. 1 is an explanatory diagram of an example of an apparatus used to carry out the present invention, Fig. 2 is an enlarged view of a disassembled mold, Fig. 3 is an enlarged sectional view taken along the line of Fig. 1, and Fig. 4
The figure is an enlarged view showing the operating state of the slide member.
The figure is a plan cross-sectional view of the support member molded product molded in the first cavity, FIG. 6 is a longitudinal cross-sectional view of the molded product shown in FIG.
FIG. 7 is a plan sectional view of the door roller molded into the second cavity, FIG. 8 is a vertical sectional view of the molded product shown in FIG. 7, and FIG. 9 is a perspective view of the molded door roller. Figures 10 to 12 show other examples of molded products.
11 is a sectional view taken along the line - FIG. 10, and FIG. 12 is a sectional view taken along the line - FIG. 10. 1... Injection molding machine, 5... First mold, 5A...
...Second mold, 10...First assembly mold, 13...
First cavity, 15... Second assembly mold, 18...
...Second cavity, 23...First injection nozzle, 2
9... Second injection nozzle, 31, 41... Support member, 33... Trochanter, 34... Door roller, 43... Mover, 44... Moving member.
Claims (1)
動可能に組付けられた移動部材とよりなる合成樹
脂成形部品を製造するに際し、前記本体あるいは
移動部材のいずれか一方の部材を第１の合成樹脂
にて射出成形し、次いで、前記合成樹脂とは異な
る種類でかつ非接着性の第２の合成樹脂を、先の
射出成形部品に対して射出成形し、本体と移動部
材が回動可能あるいは摺動可能に組付けられたも
のとなすことを特徴とした合成樹脂成形部品の製
造方法。1. When manufacturing a synthetic resin molded part consisting of a main body and a movable member rotatably or slidably assembled to the main body, either the main body or the movable member is Injection molding is performed using a synthetic resin, and then a second non-adhesive synthetic resin of a type different from the synthetic resin is injection molded onto the previous injection molded part, so that the main body and the movable member can rotate. Alternatively, a method for manufacturing a synthetic resin molded part characterized in that it is assembled in a slidable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13229284A JPS6110417A (en) | 1984-06-26 | 1984-06-26 | Manufacture of synthetic resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13229284A JPS6110417A (en) | 1984-06-26 | 1984-06-26 | Manufacture of synthetic resin molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6110417A JPS6110417A (en) | 1986-01-17 |
| JPH0371966B2 true JPH0371966B2 (en) | 1991-11-15 |
Family
ID=15077874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13229284A Granted JPS6110417A (en) | 1984-06-26 | 1984-06-26 | Manufacture of synthetic resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6110417A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2831046B2 (en) * | 1989-09-01 | 1998-12-02 | 株式会社神戸製鋼所 | Drying method of compact |
-
1984
- 1984-06-26 JP JP13229284A patent/JPS6110417A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6110417A (en) | 1986-01-17 |
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