JP2736026B2 - Molding method of injection molded article laminated with flexible reinforcing material - Google Patents
Molding method of injection molded article laminated with flexible reinforcing materialInfo
- Publication number
- JP2736026B2 JP2736026B2 JP7057487A JP5748795A JP2736026B2 JP 2736026 B2 JP2736026 B2 JP 2736026B2 JP 7057487 A JP7057487 A JP 7057487A JP 5748795 A JP5748795 A JP 5748795A JP 2736026 B2 JP2736026 B2 JP 2736026B2
- Authority
- JP
- Japan
- Prior art keywords
- flexible reinforcing
- reinforcing material
- laminated
- molded article
- flexible
- 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 - Lifetime
Links
- 239000012779 reinforcing material Substances 0.000 title claims description 32
- 238000002347 injection Methods 0.000 title claims description 16
- 239000007924 injection Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 11
- 238000000465 moulding Methods 0.000 title description 14
- 229920005989 resin Polymers 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000001746 injection moulding Methods 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 210000003041 ligament Anatomy 0.000 description 8
- 210000000629 knee joint Anatomy 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- B29C45/14—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
- B29C45/14467—Joining articles or parts of a single article
-
- 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
- B29C45/14631—Coating reinforcements
-
- 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
- B29C45/14467—Joining articles or parts of a single article
- B29C2045/14532—Joining articles or parts of a single article injecting between two sheets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複雑な形状の可撓性補
強材が積層されたインジェクション成形品を精度よくか
つ効率的に製造することができる可撓性補強材が積層さ
れたインジェクション成形品の成形法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection molding method in which a flexible reinforcing material having a complicated shape is laminated can be manufactured accurately and efficiently. The present invention relates to a method for molding an article.
【０００２】[0002]
【従来の技術】例えば、スポーツによって靱帯や関節な
どを損傷した場合に使用される膝間接靱帯用装具として
は、強度的に優れかつ成形性や耐腐食性に優れたステン
レス鋼などの金属製のものが一般に知られている。とこ
ろが、金属製のものは重量があるため取扱いが不便であ
るうえに使用時の負担も大きいという問題点があり、最
近では金属に替え重量の軽いプラスチックからなるもの
が検討されつつある。2. Description of the Related Art For example, a knee joint ligament orthosis used when a ligament or joint is damaged by sports is made of a metal such as stainless steel which is excellent in strength and excellent in formability and corrosion resistance. Things are generally known. However, there is a problem that the metal material is heavy, so that it is inconvenient to handle and a heavy burden is imposed on use. Recently, a material made of light plastic is being studied instead of metal.
【０００３】ところが、プラスチックの場合には軽量化
を図ることはできるものの、膝間接靱帯用装具として耐
えうるだけの強度を確保することが難しく、そのために
炭素繊維等の補強材を積層して強度アップを図る必要が
あり、このようなプラスチック製の膝間接靱帯用装具を
成形するにはプラスチック製の成形品本体と補強材とを
別々に成形しておき、後工程で接着一体化する工程を不
可欠としていた。従って、成形工程が複雑で生産性に劣
るという問題点や、精度よく接着一体化することが困難
でバリ取り等の仕上げ作業を強いられるという問題点が
あり、更には成形コストも高くなるという問題点もあっ
た。[0003] However, in the case of plastic, although it is possible to reduce the weight, it is difficult to secure enough strength to withstand the knee joint ligament brace, so that a reinforcing material such as carbon fiber is laminated to strengthen the joint. In order to mold such a plastic knee joint ligament orthosis, it is necessary to separately mold the plastic molded body and the reinforcing material, and then bond and integrate them in a later step. Was indispensable. Therefore, there is a problem that the molding process is complicated and the productivity is inferior, and there is a problem that it is difficult to bond and integrate with high accuracy and a finishing operation such as deburring is forced, and further, a molding cost is increased. There were also points.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記のような
従来の問題点を解決して、重量が軽く取扱いが容易で使
用時における負担も小さな膝間接靱帯用装具等に供され
る可撓性補強材が積層されたインジェクション成形品を
効率よく成形することができ、また複雑な形状であって
も所定寸法とおりに精度よく成形することができるとと
もに、後工程で貼り合わせる工程を必要とせず補強材を
プラスチック製の成形品本体に成形と同時に積層一体化
することができ、更には成形コストも廉価なものとする
ことができる表裏に可撓性補強材が積層されたインジェ
クション成形品の成形法を提供することを目的として完
成されたものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and is flexible for use in a device for a knee joint ligament, which is light in weight, easy to handle, and small in use. Injection molded product with laminated functional reinforcing material can be formed efficiently, and even if it has a complicated shape, it can be accurately formed according to predetermined dimensions, and does not require a bonding step in a later process Reinforcement can be laminated and integrated into the molded plastic body at the same time as molding, and the molding cost can be reduced. Injection molded product with flexible reinforcement laminated on both sides It was completed to provide the law.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明の可撓性補強材が積層されたインジ
ェクション成形品の成形法は、キャビティの原料注入口
付近に可撓性補強材の一端を係止しておき、溶融樹脂原
料を原料注入口より注入してインジェクション成形する
際に、キャビティ内で先端が遊離している前記可撓性補
強材を原料注入口より注入される溶融樹脂原料の流動に
伴い伸展させて成形品本体に可撓性補強材を積層一体化
させることを特徴とするものである。In order to solve the above-mentioned problems, a method for forming an injection-molded article laminated with a flexible reinforcing material according to the present invention is provided with a flexible reinforcing member near a raw material inlet of a cavity. When one end of the material is locked, and the molten resin material is injected from the material injection port to perform injection molding, the flexible reinforcing material having a free end in the cavity is injected from the material injection port. The present invention is characterized in that a flexible reinforcing material is laminated and integrated on a molded article main body by extending the molten resin raw material in accordance with the flow of the molten resin raw material.
【０００６】[0006]
【実施例】次に、本発明の実施例について図面を参照し
つつ詳細に説明する。図面は膝間接靱帯用装具に用いら
れる積層インジェクション成形部品を成形する場合を示
すものであって、図中１ａ、１ｂは接離自在な一対の成
形型、２は原料注入口、３は該原料注入口２より約５〜
１０mm程度キャビティ側に立設された係止用ピンであ
り、前記の原料注入口２より成形型１ａ、１ｂの扁平な
キャビティ内へエポキシ樹脂やアクリル樹脂等の熱硬化
性樹脂からなる溶融樹脂原料を供給してキャビティ形状
に対応した所定形状のインジェクション成形品を成形す
る。Next, embodiments of the present invention will be described in detail with reference to the drawings. The drawings show the case of forming a laminated injection molded part used for a prosthesis for a knee joint ligament. In the drawings, 1a and 1b denote a pair of molds that can be freely separated from each other; About 5 from the inlet 2
A locking pin erected on the cavity side of about 10 mm. A molten resin raw material made of a thermosetting resin such as an epoxy resin or an acrylic resin into the flat cavity of the molds 1a and 1b from the raw material injection port 2. To form an injection molded product having a predetermined shape corresponding to the cavity shape.
【０００７】本発明においては前記の係止用ピン３に帯
状の可撓性補強材４の一端を係止しておき、インジェク
ション成形する際に該可撓性補強材４を溶融樹脂原料の
流動に伴ってキャビティに沿うよう伸展させて成形品本
体５に可撓性補強材４を積層一体化させる点に特徴を有
するものである。即ち、図２に示されるように、２枚の
可撓性補強材４、４をそれぞれキャビティ６の対向する
内面側に配置したうえ該可撓性補強材４、４間に溶融樹
脂原料を供給すると、該溶融樹脂原料の流動圧によりキ
ャビティ６内で先端が遊離している可撓性補強材４はそ
れぞれキャビティ内面に沿うよう外側へ伸展させられる
こととなり、最終的には成形品本体５の上下両面に積層
一体化されるものである。In the present invention, one end of the strip-shaped flexible reinforcing material 4 is locked to the locking pin 3 so that the flexible reinforcing material 4 is used for injection molding of the molten resin material. Accordingly, the flexible reinforcing member 4 is extended and integrated along the cavity so as to be laminated and integrated with the molded article main body 5. That is, as shown in FIG. 2, the two flexible reinforcing members 4, 4 are respectively arranged on the opposed inner surface sides of the cavity 6, and the molten resin material is supplied between the flexible reinforcing members 4, 4. Then, the flexible reinforcing members 4 whose leading ends are free in the cavity 6 due to the flow pressure of the molten resin raw material are each extended outward along the inner surface of the cavity. It is laminated and integrated on both upper and lower surfaces.
【０００８】なお、前記の可撓性補強材４としては溶融
樹脂原料と同じアクリル樹脂等の熱可塑性樹脂を含浸さ
せた繊維構造体、即ちガラス繊維、アラミド繊維、スチ
ール繊維などからなる網目状構造のシート体が用いら
れ、この可撓性補強材４はインジェクション成形に際し
溶融樹脂原料の流動圧力で外側へおし拡げられてキャビ
ティ内面形状に密接に沿うよう伸展するとともに、含浸
している熱可塑性樹脂により溶融樹脂原料と接着一体化
するものである。The above-mentioned flexible reinforcing material 4 is a fibrous structure impregnated with the same thermoplastic resin as the molten resin material, such as an acrylic resin, that is, a network structure made of glass fiber, aramid fiber, steel fiber, or the like. The flexible reinforcing material 4 is spread outward by the flow pressure of the molten resin material during the injection molding, and is extended so as to closely follow the inner surface shape of the cavity, and is impregnated with the thermoplastic material. The resin is bonded and integrated with the molten resin raw material.
【０００９】以上の実施例においては上下２枚の可撓性
補強材４、４を積層する場合について説明したが、この
他、図３に示されるように可撓性補強材４をキャビティ
の中央部に配置したうえ該可撓性補強材４を挟むように
溶融樹脂原料を供給し、可撓性補強材４を溶融樹脂の中
心に沿って伸展させ成形品本体５の中央部に可撓性補強
材４を積層一体化するものとしてもよい。この場合、前
記の可撓性補強材４は図４に示されるように上下間で流
動する溶融樹脂の中心部における流動速度はほぼ一定で
あるため、該溶融樹脂の流動に伴い中心に沿って伸展す
ることとなり、可撓性補強材４が中央部に積層一体化さ
れた成形品が得られる。また、前記の実施例を組み合わ
せることにより、図５に示されるような中央部と上下両
面に可撓性補強材４が積層一体化された成形品を得るこ
とも可能であり、使用目的等に応じて任意の位置に可撓
性補強材４を積層一体化できることは勿論である。In the above embodiment, the case where the two upper and lower flexible reinforcing members 4 are laminated has been described. In addition, as shown in FIG. The molten resin material is supplied so as to sandwich the flexible reinforcing material 4 and the flexible reinforcing material 4 is stretched along the center of the molten resin, so that the flexible The reinforcing members 4 may be laminated and integrated. In this case, as shown in FIG. 4, the flow rate of the flexible reinforcing material 4 in the central portion of the molten resin flowing vertically is substantially constant, so that the flexible reinforcing material 4 moves along the center with the flow of the molten resin. As a result, a molded product in which the flexible reinforcing member 4 is laminated and integrated at the center is obtained. Further, by combining the above embodiments, it is possible to obtain a molded product in which the flexible reinforcing material 4 is laminated and integrated on the central portion and the upper and lower surfaces as shown in FIG. As a matter of course, the flexible reinforcing member 4 can be laminated and integrated at an arbitrary position.
【００１０】以上のように、本発明によれば図６〜７に
示されるように、従来は後工程で接着するしかなかった
可撓性補強材が積層されたインジェクション成形品の成
形を、インジェクション成形のみの一工程で効率よく、
しかもいかなる複雑な形状であっても高精度に成形する
ことができるものであり、また成形時に生じる係止用ピ
ン３の孔部７も膝間接靱帯用装具を組み立てる際のボル
ト孔としてそのまま利用されるもので何ら支承を生じる
こともない。As described above, according to the present invention, as shown in FIGS. 6 and 7, the injection molding of laminated flexible reinforcing material, which was conventionally only required to be bonded in a later step, is performed by injection molding. Efficient in one step of molding only,
Moreover, any complicated shape can be formed with high precision, and the hole 7 of the locking pin 3 generated at the time of molding is also used as it is as a bolt hole when assembling the knee joint ligament orthosis. It does not cause any bearing.
【００１１】[0011]
【発明の効果】以上の説明からも明らかなように、本発
明は重量が軽く取扱いが容易で使用時における負担も小
さな膝間接靱帯用装具等に供される可撓性補強材が積層
されたインジェクション成形品を効率よく成形すること
ができ、また複雑な形状であっても所定寸法とおりに精
度よく成形することができるとともに、後工程で貼り合
わせる工程を必要とせず補強材をプラスチック製の成形
品本体に成形と同時に積層一体化することができ、更に
は成形コストも廉価なものとすることができるものであ
る。よって本発明は従来の問題点を一掃した表裏に可撓
性補強材が積層されたインジェクション成形品の成形法
として、産業の発展に寄与するところは極めて大であ
る。As is apparent from the above description, according to the present invention, a flexible reinforcing material for use in a device for a knee joint ligament which is light in weight and easy to handle and has a small burden in use is laminated. Injection molded products can be molded efficiently, and even complex shapes can be molded precisely according to predetermined dimensions, and the reinforcing material is made of plastic without the need for a post-bonding step. It can be laminated and integrated with the product body at the same time as the molding, and the molding cost can be reduced. Therefore, the present invention greatly contributes to the development of industry as a method of molding an injection molded product in which a flexible reinforcing material is laminated on the front and back, eliminating the conventional problems.
【図１】本発明の実施例の成形工程を示す断面図であ
る。FIG. 1 is a cross-sectional view illustrating a molding step according to an embodiment of the present invention.
【図２】本発明の実施例の溶融樹脂原料の供給工程を示
す断面図である。FIG. 2 is a cross-sectional view illustrating a process of supplying a molten resin raw material according to an embodiment of the present invention.
【図３】その他の実施例の成形工程を示す断面図であ
る。FIG. 3 is a cross-sectional view illustrating a molding step according to another embodiment.
【図４】その他の実施例の溶融樹脂原料の供給工程を示
す断面図である。FIG. 4 is a cross-sectional view illustrating a supply step of a molten resin raw material according to another embodiment.
【図５】その他の実施例の成形工程を示す断面図であ
る。FIG. 5 is a cross-sectional view showing a molding step according to another embodiment.
【図６】本発明により成形されたインジェクション成形
品を示す切欠斜視図である。FIG. 6 is a cutaway perspective view showing an injection molded article molded according to the present invention.
【図７】本発明その他の実施例により成形されたインジ
ェクション成形品を示す切欠斜視図である。FIG. 7 is a cutaway perspective view showing an injection molded product formed according to another embodiment of the present invention.
２ 原料注入口 ３ 係止用ピン ４ 可撓性補強材 ５ 成形品本体 2 Raw material injection port 3 Locking pin 4 Flexible reinforcing material 5 Molded product body
Claims (4)
強材の一端を係止しておき、溶融樹脂原料を原料注入口
より注入してインジェクション成形する際に、キャビテ
ィ内で先端が遊離している前記可撓性補強材を原料注入
口より注入される溶融樹脂原料の流動に伴い伸展させて
成形品本体に可撓性補強材を積層一体化させることを特
徴とする可撓性補強材が積層されたインジェクション成
形品の成形法。An end of a flexible reinforcing material is locked near a raw material injection port of a cavity, and when a molten resin raw material is injected from the raw material injection port to perform injection molding, a cavity is formed.
The flexible reinforcing material having a free end in the cavity is extended along with the flow of the molten resin raw material injected from the raw material injection port to laminate and integrate the flexible reinforcing material with the molded article main body. A method of forming an injection-molded article on which a flexible reinforcing material is laminated.
させた繊維構造体を用いる請求項１に記載の可撓性補強
材が積層されたインジェクション成形品の成形法。2. The method according to claim 1, wherein a fibrous structure impregnated with a thermoplastic resin is used as the flexible reinforcing material.
ィの対向する内面に添うようにして溶融樹脂原料を両可
撓性補強材間に注入して成形品本体の表裏両面に可撓性
補強材を積層一体化する請求項１または２に記載の可撓
性補強材が積層されたインジェクション成形品の成形
法。3. A molten resin material is injected between the two flexible reinforcing members so that the two flexible reinforcing members are respectively attached to the opposing inner surfaces of the cavity, and the flexible material is applied to both the front and back surfaces of the molded article body. The method for forming an injection-molded article on which a flexible reinforcing material is laminated according to claim 1 or 2, wherein the reinforcing material is laminated and integrated.
置されるようにして溶融樹脂原料を該可撓性補強材を挟
むように注入して可撓性補強材を成形品本体の中央部に
積層一体化する請求項１または２に記載の可撓性補強材
が積層されたインジェクション成形品の成形法。4. A flexible reinforcing material is arranged at the center of the cavity, and a molten resin material is injected so as to sandwich the flexible reinforcing material. A method for forming an injection-molded article, wherein the flexible reinforcing material according to claim 1 or 2 is laminated and integrated into a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7057487A JP2736026B2 (en) | 1995-03-16 | 1995-03-16 | Molding method of injection molded article laminated with flexible reinforcing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7057487A JP2736026B2 (en) | 1995-03-16 | 1995-03-16 | Molding method of injection molded article laminated with flexible reinforcing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08252837A JPH08252837A (en) | 1996-10-01 |
| JP2736026B2 true JP2736026B2 (en) | 1998-04-02 |
Family
ID=13057084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7057487A Expired - Lifetime JP2736026B2 (en) | 1995-03-16 | 1995-03-16 | Molding method of injection molded article laminated with flexible reinforcing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2736026B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0020355D0 (en) * | 2000-08-18 | 2000-10-04 | Coniston Holdings Ltd | Moulding methods |
| EP2777919B1 (en) | 2013-03-12 | 2022-06-22 | Ems-Chemie Ag | Method for the continuous production of laminates from fibre ribbons, and their use |
| EP2860009B1 (en) * | 2013-10-11 | 2019-01-09 | Ems-Patent Ag | Method for their manufacture of reinforced moulded items |
| CN108290328B (en) * | 2015-12-28 | 2020-09-18 | 东丽株式会社 | Method for producing composite molded body |
| CN116765160B (en) * | 2022-03-11 | 2025-07-18 | 苏州三星电子有限公司 | A composite extrusion molding device for special-shaped materials |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5718228A (en) * | 1980-07-07 | 1982-01-30 | Yamaha Motor Co Ltd | Fiber-reinforced plastic injection-molded article |
| JPS60191312U (en) * | 1984-05-16 | 1985-12-18 | 本田技研工業株式会社 | Mold for foamed resin molded products |
-
1995
- 1995-03-16 JP JP7057487A patent/JP2736026B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08252837A (en) | 1996-10-01 |
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