JPH1052826A - Foam molding method - Google Patents
Foam molding methodInfo
- Publication number
- JPH1052826A JPH1052826A JP8231460A JP23146096A JPH1052826A JP H1052826 A JPH1052826 A JP H1052826A JP 8231460 A JP8231460 A JP 8231460A JP 23146096 A JP23146096 A JP 23146096A JP H1052826 A JPH1052826 A JP H1052826A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- skin material
- foam
- bent
- slide member
- 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
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
- B29C44/351—Means for preventing foam to leak out from the foaming device during foaming
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1257—Joining a preformed part and a lining, e.g. around the edges
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は発泡成形方法に係
り、特にインストルメントパネルやグローブボックス、
コンソールボックスなど自動車内装品に用いられる発泡
材料合成樹脂成形品の発泡成形方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam molding method, and more particularly to an instrument panel, a glove box, and the like.
The present invention relates to a foam molding method for a foamed synthetic resin molded product used for automobile interior parts such as a console box.
【0002】[0002]
【従来の技術】従来、インストルメントパネルなど自動
車内装品の発泡成形では、例えば図4に示すように上下
一対のモールド1、2からなる成形型を用いて、その一
方のモールド1に表皮材3を配置し、他方のモールド2
に芯材(インサート材)4を配置して、両モールド1、
2を型合わせした後、両者の間にウレタンの如き発泡合
成樹脂材料を注入し、表皮材3、発泡層5及び芯材4を
一体成形することが行われているが、このような従来の
発泡成形においては、発泡成形時に表皮材の縁部付近と
芯材の接合部を面接触させ、上下両モールド1、2で圧
着させるようにしていたため、芯材4と表皮材3の間に
注入された発泡材料が上記縁部付近で接合部から漏出
し、これが硬化してバリとなり、あるいはイソシアネー
トとポリオールが混合し、ウレタンとなる化学反応時に
発生するガスが圧力の弱い方へ移動し、これが漏れとな
ってその移動中にウレタンが反応を終えると、ガスが細
かい粒となって残り、成形後、トリム工程で除去しなけ
ればならず、非常に手間がかかるのみならず、外観上も
好ましくなく、更には不良品、廃棄品を生じるという問
題があった。2. Description of the Related Art Conventionally, in foam molding of automobile interior parts such as an instrument panel, for example, as shown in FIG. And the other mold 2
The core material (insert material) 4 is arranged in
After the mold 2 is molded, a foam synthetic resin material such as urethane is injected between the two to integrally mold the skin material 3, the foam layer 5 and the core material 4. In the foam molding, the vicinity of the edge of the skin material and the joint portion of the core material are brought into surface contact with each other at the time of the foam molding, and the upper and lower molds 1 and 2 are press-bonded. Therefore, the foam material is injected between the core material 4 and the skin material 3. The foamed material leaks from the joint near the edge and hardens to form burrs, or isocyanate and polyol are mixed, and the gas generated during the chemical reaction to become urethane moves to the weaker pressure, and this When the urethane finishes reacting during the movement due to leakage, the gas remains as fine particles, and after molding, it has to be removed in a trimming process, which is not only very troublesome but also preferable in appearance. No more Defective products, there is a problem that results in a scrap.
【0003】そのため、図5のように表皮材縁部の接合
部における上記発泡材料の漏れを防止する技術として発
泡材料成形型にスライド型1aを用いて発泡材料の漏れ
を防止したり(特開平2−197443号公報)、表皮
材と芯材を発泡成形型に配置し、その間に発泡材料を注
入して一体発泡する際に表皮材と芯材との接合部で、図
4の如く芯材に凸条10を設けたり、あるいはシール材
(特開平4−247915号公報)または液状の熱可塑
性樹脂(特公平7−10533号公報)を設けることな
どが提案されている。For this reason, as shown in FIG. 5, as a technique for preventing the leakage of the foaming material at the joint portion of the skin material edge, the leakage of the foaming material is prevented by using a slide mold 1a as a foaming material forming die (Japanese Patent Laid-Open No. HEI 9-163556). JP-A-197443), a skin material and a core material are arranged in a foaming mold, and a foam material is injected between them to form an integral foam. At the joint between the skin material and the core material, as shown in FIG. It has been proposed to provide a ridge 10 or a sealing material (JP-A-4-247915) or a liquid thermoplastic resin (JP-B-7-10533).
【0004】[0004]
【発明が解決しよしとする課題】ところが、上記夫々の
漏れ防止構造は、一応それなりに有効なものではある
が、表皮材を予めシール形状に設定したり、芯材の製品
面以外の形状を設定したりするために手間がかかると共
に、発泡成形時、表皮材の縁部が引張られて芯材接合面
との間を開いて寸法精度に狂いを生じさせる難点を有し
ていた。However, although each of the above-mentioned leak prevention structures is effective to some extent, it is necessary to set the skin material in advance to a seal shape or to set the shape of the core material other than the product surface. In addition to this, it takes a lot of time and labor, and at the time of foam molding, there is a problem that the edge of the skin material is pulled and opened between the core material joining surface and the dimensional accuracy is deteriorated.
【0005】一方、図3に示すように表皮材3を配置し
た一方のモールド1と、芯材4を配置した他方のモール
ド2を型合わせする発泡成形型において、前記表皮材3
を配置した一方のモールド1の表皮材縁部折曲げ位置に
スライド部材6を設け、該部材6をスライドせしめて表
皮材3の折曲げ縁部先端部3aを芯材4に当接せしめる
ことが一部、試みられているが、表皮材3がたわませら
れていないため、図3(イ)に示すように折曲げ縁部先
端部3aと芯材4との間にスリットSがあれば、スライ
ド部材6のスライドによって表皮材3が芯材4側へ押し
出され、引張られて接合されるとき、即ち、図3(ロ)
の状態になるとき、上記スライド部材6による引張りに
より角部にはだれが生じて、しかも表皮材3の一部は薄
肉状態となり、不良品を招来し易い問題があった。On the other hand, as shown in FIG. 3, in a foaming mold in which one mold 1 in which a skin material 3 is arranged and another mold 2 in which a core material 4 is arranged, the skin material 3 is used.
The slide member 6 is provided at the bending position of the skin material edge of one mold 1 on which is disposed, and the member 6 is slid so that the bent edge tip 3a of the skin material 3 is brought into contact with the core material 4. Although some attempts have been made, since the skin material 3 is not bent, if there is a slit S between the bent edge tip 3a and the core material 4 as shown in FIG. When the skin material 3 is extruded toward the core material 4 by the sliding of the slide member 6 and is joined by being pulled, that is, FIG.
In the state described above, the corners are drooped due to the pulling by the slide member 6, and a part of the skin material 3 is thinned, so that there is a problem that defective products are easily caused.
【0006】本発明は上述の如き実状に対処し、特にス
ライド部材の採用と上記表皮材ならびに芯材の形状を課
題とし、セットを容易にし、型設定時間を短縮して成形
サイクルの短縮化を促すと共に、シール時における表皮
材の引張りによるだれ部をなくし、確実な漏れ防止と不
良率の低減を図ることを目的とするものである。SUMMARY OF THE INVENTION The present invention addresses the above-mentioned actual situation, and in particular, adopts a slide member and the shapes of the skin material and the core material to facilitate the setting, shorten the mold setting time, and shorten the molding cycle. It is another object of the present invention to promote the prevention and eliminate a dripping portion due to the tension of the skin material at the time of sealing, thereby reliably preventing leakage and reducing the defective rate.
【0007】[0007]
【課題を解決するための手段】即ち、上記目的に適合す
る本発明は、表皮材を配置した一方のモールドと、芯材
を配置した他方のモールドを型合わせして、それら表皮
材と芯材の間に発泡材料を注入し、表皮材と発泡層及び
芯材が一体化された発泡成形品を成形する発泡成形型に
おいて、前記表皮材を配置する一方のモールドの表皮材
縁部折曲げ位置に併設して表皮材折曲げ縁部先端部を芯
材に当接せしめるスライド部材をスライト可能に配設せ
しめた成形型を用いて発泡成形を行うにあたり、一方の
モールドに配置した表皮材の縁部を折り曲げ、該折り曲
げ部をたわませた状態に維持して、該モールドに併設し
たスライド部材をスライドさせてその先端に前記表皮材
の折曲げ縁部先端部を掛止させ、次いで他方のモールド
を型合わせした後、上記スライド部材を、その先端に表
皮材の折曲げ縁部を掛止させたまま更にスライドさせ、
シールせしめて、表皮材と芯材の間に発泡材料を注入し
発泡成形せしめることを特徴とする。That is, according to the present invention, which meets the above-mentioned object, according to the present invention, one of the molds on which the skin material is arranged and the other mold on which the core material is arranged are mold-matched to each other. In a foaming mold for injecting a foaming material during molding and molding a foamed product in which a skin material, a foam layer and a core material are integrated, a skin material edge bending position of one mold on which the skin material is arranged When foam molding is performed using a molding die in which a slide member that allows the front end of the skin material bent edge to abut on the core material is slidably disposed, the edge of the skin material arranged in one mold The folded portion is maintained in a state where the bent portion is deflected, and a slide member attached to the mold is slid so that the tip of the bent edge portion of the skin material is hooked to the tip thereof, and then the other is formed. After matching the mold The slide member, while was further slide was hooked to the bent edges of the skin material at its tip,
It is characterized in that a sealing material is sealed, a foam material is injected between the skin material and the core material, and foam molding is performed.
【0008】請求項2記載の発明は、上記方法を実施す
るに際し、好適な手段を付加するもので、表皮材の折曲
げ縁部にたわませ部と、その先端にスライド部材を掛止
する引掛け状掛止部を予め形成せしめることを特徴とす
る。According to a second aspect of the present invention, a suitable means is added in carrying out the above method, and a bending portion is provided at a bent edge portion of a skin material, and a slide member is hooked at a tip end thereof. The present invention is characterized in that the hook-shaped hook portion is formed in advance.
【0009】[0009]
【作用】上記本発明では、先ずスライド部材が未だスラ
イドされていない状態で、表皮材を一方のモールドに配
置する。そして、その表皮材が掛止できる程度までスラ
イド部材をスライドさせてその先端で表皮材折曲げ縁部
先端部を掛止維持し、セットする。According to the present invention, the skin material is first placed on one mold while the slide member is not yet slid. Then, the slide member is slid to such an extent that the skin material can be hooked, and the front end of the skin material bending edge portion is hooked and maintained at the front end, and set.
【0010】この状態で次に芯材が他方のモールドにセ
ットされて下降し、型合わせがなされると、再びスライ
ド部材をスライドさせて表皮材折曲げ縁部先端部を芯材
に完全に当接し、シールする。かくて、発泡材料を注入
し、発泡成形を行うことにより発泡後のトリムやバリ取
りの手間を不要ならしめ、成形サイクルの短縮をもたら
す。[0010] In this state, the core material is then set in the other mold and lowered, and when the molds are matched, the slide member is slid again to completely touch the front end portion of the skin material bending edge to the core material. Touch and seal. Thus, by injecting the foam material and performing the foam molding, the trouble of trimming and deburring after foaming becomes unnecessary, and the molding cycle is shortened.
【0011】特に請求項2記載のように表皮材にたわま
せ部と引掛状掛止部を設ければ、スライド部材を表皮材
折曲げ縁部先端部が芯材に当接するまでスライドさせた
とき、表皮材が引張られても角部にだれを起こすことな
く、外観を良好とし、かつシールをより完全として発泡
材料の漏れを阻止可能とする。In particular, if the bending portion and the hooking portion are provided on the skin material as described in claim 2, the sliding member is slid until the front end of the skin material bending edge comes into contact with the core material. At this time, even when the skin material is pulled, the appearance is improved without causing any drooping at the corners, and the sealing is more complete so that the leakage of the foam material can be prevented.
【0012】[0012]
【発明の実施の形態】以下、更に本発明の具体的な実施
の形態を添付図面と共に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.
【0013】図1及び図2は本発明発泡成形方法の実施
の1態様であり、図において、1は下部モールド、2は
上部モールドで発泡成形用金型は上記一対のモールド
1、2によって構成されており、本発明の実施にあた
り、下部モールド1に表皮材3が、一方、上部モールド
2に芯材4が夫々配置されて、これら上下両モールドが
型合わせされ、表皮材3の折曲げ縁部先端部3aが芯材
4と接合した状態で表皮材3と芯材4との間に発泡樹脂
材料が注入されて発泡成形がなされる。FIGS. 1 and 2 show one embodiment of the foam molding method of the present invention. In the drawings, reference numeral 1 denotes a lower mold, 2 denotes an upper mold, and a foam molding die comprises the pair of molds 1 and 2 described above. In carrying out the present invention, a skin material 3 is arranged in a lower mold 1 and a core material 4 is arranged in an upper mold 2, and these upper and lower molds are matched with each other. A foamed resin material is injected between the skin material 3 and the core member 4 in a state where the tip portion 3a is joined to the core member 4, and foam molding is performed.
【0014】なお、表皮材3の下部モールド1への配置
(セット)に際しては、図示していないが吸引源に連結
する吸引機構が設けられ、この真空吸引によって表皮材
3を下部モールド1に吸引圧着させる。ここで、表皮材
3は樹脂シート、レザー等、柔軟なものが用いられ、芯
材4としては樹脂パネル、金属パネルなどが用いられ
る。When the skin material 3 is placed (set) on the lower mold 1, a suction mechanism (not shown) connected to a suction source is provided, and the skin material 3 is sucked into the lower mold 1 by this vacuum suction. Crimp. Here, a flexible material such as a resin sheet or leather is used as the skin material 3, and a resin panel, a metal panel, or the like is used as the core material 4.
【0015】また発泡材料5としてはポリウレタン、P
VC、ポリエチレン等の発泡材料が使用可能であるが、
最も一般的にはポリウレタンである。ところで、上述の
ように表皮材3の折曲げ縁部先端部3aが芯材4に接合
されて、両者の間に発泡材料5が注入され、発泡成形が
なされるが、本発明においては特に表皮材3が配置され
た一方のモールド1の前記表皮材3の縁部折曲げ位置に
おいて、該折曲げ縁部先端部3aを芯材4に当接せしめ
るためのスライド部材6、例えばスライドプレートが併
設されて表皮材3の折曲げ縁部先端部3aを該スライド
部材6により芯材4に当接せしめるようになっている。As the foam material 5, polyurethane, P
Foam materials such as VC and polyethylene can be used,
Most commonly it is polyurethane. By the way, as described above, the tip 3a of the bent edge portion of the skin material 3 is joined to the core material 4, the foam material 5 is injected between them, and the foam molding is performed. At the edge bending position of the skin material 3 of one of the molds 1 on which the material 3 is disposed, a slide member 6, for example, a slide plate, for bringing the bent edge tip 3 a into contact with the core material 4 is provided. Then, the bent edge tip 3a of the skin material 3 is brought into contact with the core material 4 by the slide member 6.
【0016】なおこの場合、スライド部材6による表皮
材3の芯材4への接合をより確実ならしめるため、好ま
しい態様として図2(イ)に示すように表皮材3の一部
にたわませ部7と、その先端にスライド部材6を掛止す
るための引掛け状の掛止部8が予め形成される。たわま
せ部7は他部に比し稍薄肉とすることが有利で、たわま
せ部7の伸びる前状態における厚みとしては表皮材3の
厚みをtとするとき(0.2〜1.0)tとする。In this case, in order to more reliably join the skin material 3 to the core material 4 by the slide member 6, in a preferred embodiment, the skin material 3 is partially bent as shown in FIG. A portion 7 and a hook-shaped hooking portion 8 for hooking the slide member 6 on the end thereof are formed in advance. It is advantageous that the flexing portion 7 is slightly thinner than the other portions, and the thickness of the flexing portion 7 in the state before the extension is t when the thickness of the skin material 3 is t (0.2 to 1. 0) Let t.
【0017】これらたわませ部7と掛止部8はスライド
部材6が表皮材3を芯材4側へ摺動移行するとき、これ
に順応して、表皮材3の形状を整え、表皮材3と芯材4
との間のシールをより完全ならしめる上に有利である。
もし、表皮材3がたわませられることなく、図3(イ)
に示すように折曲げ縁部先端部3aと芯材4との間にス
リットSを有しているときは、前述の如くスライド部材
6のスライドによって表皮材3が芯材4側へ押し出さ
れ、引張られて接合されるとき、即ち、図3(ロ)の状
態になるとき、上記スライド部材6による引張りにより
角部にはだれが生じて、しかも表皮材3の一部は薄肉状
態となり、不良品を招来し易くなる。従って、図2のよ
うに予め、表皮材3の一部をたわませ、かつ先端に掛止
部8を設けておくことは頗る好適である。When the slide member 6 slides and moves the skin material 3 toward the core material 4, the flexure portion 7 and the latching portion 8 adjust the shape of the skin material 3 in accordance with the slide member 6. 3 and core 4
This is advantageous in making the seal between the two more complete.
If the skin material 3 is not flexed, FIG.
When the slit S is provided between the bent edge tip 3a and the core member 4 as shown in FIG. 5, the skin material 3 is pushed out toward the core member 4 by the slide of the slide member 6 as described above. When the member is pulled and joined, that is, when the state shown in FIG. 3B is obtained, the corner portion is drooped due to the pulling by the slide member 6 and a part of the skin material 3 is in a thin state. It is easy to invite. Therefore, it is very preferable to previously bend a part of the skin material 3 and to provide the hook 8 at the tip as shown in FIG.
【0018】かくして、本発明では表皮材3を一方のモ
ールド1に配置し、スライド部材6を表皮材3が掛かる
程度スライドさせて、該モールド1に表皮材3のセット
を完了し、芯材4を配置し、セットした他方のモールド
2と型合わせする。このとき、未だ表皮材3の折曲げ縁
部先端部3aは芯材4に対し、当接状態にはないため、
再びスライド部材6を最大限スライドさせ、折曲げ縁部
先端部3aを芯材4に密接させる。従って、スライド部
材6のスライド長さは発泡成形品の形態に合わせ、その
折曲げ縁部先端部3aと芯材4との型合わせにもとづい
て設定し、若干の余裕をもたせることが好ましい。そし
て、上記表皮材3の折曲げ縁部先端部3aと芯材4とが
当接されると、スライド部材6の押圧により充分にシー
ルし、発泡材料であるポリウレタン等を注入し、発泡成
形を行う。Thus, in the present invention, the skin material 3 is arranged on one mold 1 and the slide member 6 is slid to the extent that the skin material 3 is hooked, and the setting of the skin material 3 on the mold 1 is completed. Is arranged, and is matched with the other set mold 2. At this time, since the bent edge tip 3a of the skin material 3 is not yet in contact with the core material 4,
The slide member 6 is again slid to the maximum extent, and the bent edge tip 3a is brought into close contact with the core material 4. Therefore, it is preferable that the slide length of the slide member 6 is set in accordance with the form of the foamed molded product and based on the mold matching between the bent edge tip portion 3a and the core member 4, so that a slight margin is preferably provided. When the bent edge portion 3a of the skin material 3 and the core material 4 are brought into contact with each other, the slide member 6 is sufficiently sealed by pressing the slide member 6, and a foaming material such as polyurethane is injected to perform foam molding. Do.
【0019】このようにして、本発明では表皮材縁部は
完全にシールされ、製品面への影響を最小限にしてトリ
ム工程を合理化し、成形時間を短縮することができる。As described above, according to the present invention, the skin material edge is completely sealed, the effect on the product surface can be minimized, the trimming process can be streamlined, and the molding time can be shortened.
【0020】[0020]
【発明の効果】本発明は以上のように表皮材を配置した
モールドの該表皮材縁部折曲げ位置に対応して、表皮材
の折曲げ縁部先端部を芯材に当接させるべくスライド部
材を配設し、発泡成形に先立つ型合わせにおいて一方の
モールドに配置された表皮材の折曲げ縁部先端部を該ス
ライド部材により一旦、掛止させ、芯材を配置した他方
のモールドと型合わせした後、更にスライドさせてその
表皮材折曲げ縁部先端部を芯材と当接させて発泡材料を
注入するようにしたものであり、表皮材の折曲げ縁部を
たわませた状態に維持してスライド部材でスライドさせ
るため、スライド部材により完全なシールができ発泡材
料の漏れを完全に阻止することができるので、従来、液
漏れにより発生したバリ等の発生が解消され、トリム工
程を著しく簡易化すると共に、表皮材と芯材のモールド
内セットにおいても表皮材をたわませて配置でき、スラ
イド部材によってセットすることができるので、従来の
如く手間を要することもなく、成形時間の短縮ならびに
製品の外観向上に顕著な効果を有している。殊に表皮材
に一部のたわませ部と、先端部にスライド部材の引掛け
状掛止部を予め形成しておくことにより、スライド部材
による表皮材のセットはもとより、更に一層のシール効
果を高めることができる。According to the present invention, a slide is provided so that the front end of the bent edge portion of the skin material contacts the core material corresponding to the bent position of the skin material edge portion of the mold on which the skin material is arranged as described above. The member is disposed, and in the mold matching prior to foam molding, the front end of the bent edge portion of the skin material arranged in one mold is temporarily hooked by the slide member, and the other mold and mold in which the core material is arranged After the alignment, the sliding edge is further slid so that the tip of the bent edge of the skin material is brought into contact with the core material to inject the foam material, and the bent edge of the skin material is bent. Since the slide member is slid with the slide member maintained completely, it is possible to completely seal the slide member and completely prevent the leakage of the foamed material. Significantly simplified In addition, the skin material can be flexed and arranged in the mold set of the skin material and the core material, and can be set by the slide member. Has a remarkable effect on improving the appearance of In particular, by forming in advance a part of the flexure portion on the skin material and a hook-shaped hooking portion of the slide member at the tip portion, not only the setting of the skin material by the slide member but also a further sealing effect. Can be increased.
【図1】本発明発泡成形方法の1態様を示す部分断面概
要図である。FIG. 1 is a schematic partial sectional view showing one embodiment of the foam molding method of the present invention.
【図2】本発明発泡成形方法における表皮材の好ましい
態様を示し、(イ)は伸びる前の表皮材の部分断面図、
(ロ)は伸びた状態の表皮材の状態における部分断面概
要図である。FIG. 2 shows a preferred embodiment of a skin material in the foam molding method of the present invention, wherein (A) is a partial cross-sectional view of the skin material before stretching.
(B) is a partial cross-sectional schematic diagram in a state of the skin material in an extended state.
【図3】比較スライド部材のスライド態様を示し、
(イ)はスライド前の部分断面図、(ロ)はスライド後
の部分断面概要図であてる。FIG. 3 shows a sliding mode of a comparative slide member;
(A) is a partial sectional view before sliding, and (B) is a schematic partial sectional view after sliding.
【図4】既知のシール構造の1例を示す断面図である。FIG. 4 is a sectional view showing an example of a known seal structure.
【図5】既知のシール構造の他の例を示す断面図であ
る。FIG. 5 is a sectional view showing another example of a known seal structure.
1 下部モールド 2 上部モールド 3 表皮材 4 芯材 5 発泡材料 6 スライド部材 7 たわませ部 8 掛止部 DESCRIPTION OF SYMBOLS 1 Lower mold 2 Upper mold 3 Skin material 4 Core material 5 Foam material 6 Slide member 7 Flexure part 8 Hook part
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B29L 31:58 Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B29L 31:58
Claims (2)
材を配置した他方のモールドを型合わせして、それら表
皮材と芯材との間に発泡材料を注入し、表皮材と発泡層
及び芯材が一体化された発泡成形品を成形する発泡成形
方法において、前記一方のモールドに配置した表皮材の
縁部を折り曲げ、該折り曲げ部をたわませた状態に維持
して、該モールドに併設したスライド部材をスライドさ
せてその先端に前記表皮材の折曲げ縁部先端部を掛止さ
せ、次いで他方のモールドを型合わせした後、上記スラ
イド部材を、その先端に表皮材の折曲げ縁部先端部を掛
止させたまま更にスライドさせて該先端部を芯材に当接
させシールせしめて、表皮材と芯材の間に発泡材料を注
入し発泡成形せしめることを特徴とする発泡成形方法。1. A mold in which a skin material is arranged and a mold in which a core material is arranged are matched with each other, and a foam material is injected between the skin material and the core material. And a foam molding method for molding a foam molded product in which the core material is integrated, wherein the edge of the skin material arranged in the one mold is bent, and the bent portion is maintained in a bent state, and the mold is formed. After sliding the slide member attached to, the front end of the bent edge portion of the skin material is hooked to the front end thereof, and then the other mold is mold-set. Then, the slide member is bent at the front end thereof. The foaming is characterized in that the edge portion is further slid while being hooked, the tip portion is brought into contact with the core material and sealed, and a foaming material is injected between the skin material and the core material to form the foam. Molding method.
の先端にスライド部材を掛止する引掛け状掛止部を予め
形成しておく請求項1記載の発泡成形方法。2. The foam molding method according to claim 1, wherein a bending portion is formed at a bent edge portion of the skin material, and a hook-shaped hooking portion for hooking a slide member is formed at a tip of the bending portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23146096A JP3662081B2 (en) | 1996-08-12 | 1996-08-12 | Foam molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23146096A JP3662081B2 (en) | 1996-08-12 | 1996-08-12 | Foam molding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1052826A true JPH1052826A (en) | 1998-02-24 |
JP3662081B2 JP3662081B2 (en) | 2005-06-22 |
Family
ID=16923864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23146096A Expired - Lifetime JP3662081B2 (en) | 1996-08-12 | 1996-08-12 | Foam molding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3662081B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040042676A (en) * | 2002-11-15 | 2004-05-20 | 현대모비스 주식회사 | structure of foaming metal mold for crash pad of automobile |
JP2008534313A (en) * | 2005-03-23 | 2008-08-28 | ヴェーバスト アーゲー | Method and tool for manufacturing a composite chassis piece for a vehicle |
-
1996
- 1996-08-12 JP JP23146096A patent/JP3662081B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040042676A (en) * | 2002-11-15 | 2004-05-20 | 현대모비스 주식회사 | structure of foaming metal mold for crash pad of automobile |
JP2008534313A (en) * | 2005-03-23 | 2008-08-28 | ヴェーバスト アーゲー | Method and tool for manufacturing a composite chassis piece for a vehicle |
Also Published As
Publication number | Publication date |
---|---|
JP3662081B2 (en) | 2005-06-22 |
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