JPH11147261A - Method for molding interior material for car and apparatus therefor - Google Patents

Method for molding interior material for car and apparatus therefor

Info

Publication number
JPH11147261A
JPH11147261A JP10122117A JP12211798A JPH11147261A JP H11147261 A JPH11147261 A JP H11147261A JP 10122117 A JP10122117 A JP 10122117A JP 12211798 A JP12211798 A JP 12211798A JP H11147261 A JPH11147261 A JP H11147261A
Authority
JP
Japan
Prior art keywords
base material
molding
bracket
injection
rib
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
Application number
JP10122117A
Other languages
Japanese (ja)
Other versions
JP2964034B2 (en
Inventor
Song Do Chon
成道 全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of JPH11147261A publication Critical patent/JPH11147261A/en
Application granted granted Critical
Publication of JP2964034B2 publication Critical patent/JP2964034B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C45/14377—Coating a portion of the article, e.g. the edge of the article using an additional insert, e.g. a fastening element
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • 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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • 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
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the 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
    • B29C2045/0093—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of articles provided with an attaching element
    • 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
    • B29L2031/3041—Trim panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners

Abstract

PROBLEM TO BE SOLVED: To provide a method for molding an interior material for a car capable of simply performing a molding process, enhanced in workability, reducing production cost and excellent in moldability, and a molding apparatus therefor. SOLUTION: When a lower mold 10 of a press machine for pressing a base material 30 and a skin material 40 into a predetermined shape to fuse and mold them is to be constituted, a large number of bracket grooves 11 and rib grooves 12 are formed on the surface of the lower mold 10 at predetermined positions and ejection holes 13 communication with an inflow pipe are respectively formed only on the bottom parts of the bracket grooves 11 and the rib grooves 12 and, immediately after the base material 30 and the skin material 40 are fused and molded by the press machine, an injection liquid is supplied through the jection holes 13 to integrally form a large number of brackets and ribs on the rear surface of the base material 30 by injection molding.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、自動車用の内装材
の成形方法及びその成形装置に関し、更に詳細には、自
動車に用いられるドアトリム、インストルメントパネ
ル、インナピ−ラ等のような内装材の成形方法及びその
成形装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for molding an interior material for an automobile, and more particularly, to an interior material such as a door trim, an instrument panel, or an inner pillar used for an automobile. The present invention relates to a molding method and a molding apparatus.

【０００２】[0002]

【従来の技術】一般的に、自動車に用いられる内装材
（その一例を図１に示す）は、主としてポリプロピレ
ン、ウッドファイバ、ウッドストック等の材質からなる
硬質の基材と、この基材の表面に融着され、裏面にポリ
エチレン発泡体層が形成された化学繊維からなる表皮材
とで構成され、上記基材の裏面には、車体に容易に取り
付けるための硬質のブラケットが設けられる。2. Description of the Related Art Generally, interior materials used for automobiles (an example of which is shown in FIG. 1) are a hard base material mainly made of a material such as polypropylene, wood fiber, wood stock and the like, and a surface of the base material. And a skin material made of a chemical fiber having a polyethylene foam layer formed on the back surface, and a hard bracket for easy attachment to the vehicle body is provided on the back surface of the base material.

【０００３】このような自動車用の内装材は、一般のプ
レス機を利用した成形方法、或いは低圧射出機を利用し
た成形方法によって製造されている。[0003] Such interior materials for automobiles are manufactured by a molding method using a general press machine or a molding method using a low-pressure injection machine.

【０００４】前者のプレス機を利用した成形方法におい
ては、板状の基材と表皮材とをプレス機で加圧して所定
の形態に融着成形する際に、この基材の裏面に別に成形
したブラケットが同時に融着されるようにする方式と、
基材と表皮材とをプレス機で加圧して所定の形態に融着
成形した後に、その基材の裏面に別に成形したブラケッ
トを高周波等の装備を利用して取り付ける方式とを採用
しているが、以下では前者の方式を例にとり説明する。In the former molding method using a press machine, when a plate-shaped base material and a skin material are pressed by a press machine and fusion-molded into a predetermined form, they are separately formed on the back surface of the base material. To ensure that the brackets are fused together,
After the base material and the skin material are pressed by a press machine and fusion-molded into a predetermined form, a bracket separately formed on the back surface of the base material is attached using a device such as high frequency. However, the former method will be described below as an example.

【０００５】プレス機を利用した内装材の成形方法は、
図２（Ｉ）に示すように、先ず、予め所定の形態に成形
したブラケット５をプレス機の下金型１に形成したブラ
ケット溝に嵌め込む。次に、上記下金型１上に所定温度
で加熱した板状の基材３を載置し、この上に表皮材４を
重ねた後、上金型２を下降させて加圧すると、図２（Ｉ
Ｉ）に示すように、上記基材３の表面に表皮材４０が融
着成形されると共に、このときの加圧力によって上記基
材３の一部が上記ブラケット５のフランジ５ａに形成さ
れた複数の孔５ｂ内に埋め込まれて融着されることによ
り、図１に示すように、基材３の裏面にブラケット５が
取り付けられた内装材が得られる。[0005] A molding method of an interior material using a press machine is as follows.
As shown in FIG. 2 (I), first, a bracket 5 formed in a predetermined form in advance is fitted into a bracket groove formed in the lower die 1 of the press. Next, a plate-shaped base material 3 heated at a predetermined temperature is placed on the lower mold 1, and a skin material 4 is stacked thereon, and then the upper mold 2 is lowered and pressurized. 2 (I
As shown in I), the skin material 40 is fusion-formed on the surface of the base material 3 and a part of the base material 3 is formed on the flange 5 a of the bracket 5 by the pressing force at this time. The interior material in which the bracket 5 is attached to the back surface of the base material 3 is obtained as shown in FIG.

【０００６】ところが、上記プレス機を利用した成形方
法においては、ブラケットを別に成形する工程が必要で
あり、更にこのブラケットを下金型に形成されたブラケ
ット溝に一つ一つ嵌め込まなければならないため、作業
能率が劣るという問題点があった。However, the above-described molding method using a press requires a step of separately molding a bracket, and furthermore, the brackets must be fitted one by one into bracket grooves formed in a lower mold. However, there is a problem that work efficiency is inferior.

【０００７】また、ブラケットのフランジの孔内に基材
の一部が薄く埋め込まれて融着されるため、僅かな衝撃
によってもブラケットが基材の裏面から離れてしまっ
て、不良品の発生率が高まるという問題点があった。Further, since a part of the base material is thinly embedded in the hole of the flange of the bracket and fused, the bracket is separated from the back surface of the base material even by a slight impact, so that the occurrence rate of defective products is reduced. There was a problem that it increased.

【０００８】且つ、上記成形方法では、内装材がしなや
かに揺れることを防止するためのリブを基材の裏面に成
形することができないので、成形された内装材が後で変
形するという問題点もあった。Further, in the above-mentioned molding method, a rib for preventing the interior material from swaying flexibly cannot be formed on the back surface of the base material, so that the molded interior material is deformed later. there were.

【０００９】一方、後者の低圧射出機を利用した内装材
の成形方法は、図３に示すように、下金型１にはブラケ
ット５とリブ６を射出成形するための多数のブラケット
溝７とリブ溝８、及びこれらに連通する多数の射出孔が
形成されているため、基材３を射出成形する際に、基材
３の裏面にブラケット５とリブ６を同時に射出成形する
ことができる。このため、上記したプレス機を利用した
成形方法に比べて作業工程が簡単であり、且つ成形され
た内装材が後で変形することを効果的に防止することが
できる。On the other hand, in the latter method of molding an interior material using a low-pressure injection machine, as shown in FIG. 3, a plurality of bracket grooves 7 for injection-molding a bracket 5 and a rib 6 are formed in a lower mold 1. Since the rib grooves 8 and a large number of injection holes communicating with them are formed, the bracket 5 and the ribs 6 can be simultaneously injection-molded on the back surface of the substrate 3 when the substrate 3 is injection-molded. For this reason, the working process is simpler than the molding method using the above-mentioned press machine, and the molded interior material can be effectively prevented from being deformed later.

【００１０】しかしながら、このような低圧射出機は、
ドアトリムやインストルメントパネルのような大きいサ
イズの内装材を射出成形することができる、即ち下金型
に形成された多数の射出孔に均一な圧力を加えることが
できる高価でしかも大型の低圧射出機でなければなら
ず、しかもその金型費用も非常に高い。このため、この
ような高価で大型の低圧射出機を利用した場合は、その
設備費用等が製造コストにそのまま反映されるため、内
装材の製造コストが上昇することになる。[0010] However, such a low-pressure injection machine,
An expensive and large-sized low-pressure injection machine that can injection-mold large-sized interior materials such as door trims and instrument panels, that is, can apply uniform pressure to many injection holes formed in the lower mold. And the mold cost is very high. For this reason, when such an expensive and large-sized low-pressure injection machine is used, the equipment cost and the like are directly reflected in the manufacturing cost, so that the manufacturing cost of the interior material increases.

【００１１】且つ、上記低圧射出機を利用した成形方法
においては、基材を射出成形する際に、表皮材にも高圧
の射出圧力が作用するため、図４に示すように、表皮材
４の発泡体層４ａが圧縮されることになる。このため、
成形された内装材が硬くなって中型または大型の高級車
両には使用することができないという問題点があった。In the molding method using the low-pressure injection machine, a high injection pressure also acts on the skin material when the base material is injection-molded. Therefore, as shown in FIG. The foam layer 4a will be compressed. For this reason,
There is a problem that the molded interior material becomes hard and cannot be used for a medium-sized or large-sized luxury vehicle.

【００１２】[0012]

【発明の解決しようとする課題】本発明は上記のような
問題点を解消するためのものであって、本発明の目的
は、成形工程を簡単に行えると共に、作業性の向上、製
造コストの低減及び成形性に優れた自動車用の内装材の
成形方法及びその成形装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to simplify a molding process, improve workability, and reduce manufacturing costs. An object of the present invention is to provide a method of molding an interior material for an automobile which is excellent in reduction and moldability and a molding apparatus therefor.

【００１３】[0013]

【課題を解決するための手段】このような上記課題を解
決するために、本発明の自動車用の内装材の成形方法
は、所定温度で加熱された板状の基材を下金型上に載置
し、この基材上に表皮材を重ねた後、上金型を下降させ
て加圧することにより、上記基材の表面に上記表皮材を
融着成形するプレス成形工程と、上記プレス成形工程を
行った直後における上記基材３０に相当量の熱が残留し
ている状態で、直ちに上記下金型の射出孔を介して上記
基材の裏面に射出液を供給することにより、上記基材の
裏面に多数のブラケットとリブが一体に射出成形される
ようにする射出成形工程と、からなることを特徴とす
る。In order to solve the above-mentioned problems, a method of molding an interior material for an automobile according to the present invention comprises: placing a plate-shaped base material heated at a predetermined temperature on a lower mold; A press forming step of placing the skin material on the base material, lowering the upper mold and pressing the base material, and press-bonding the skin material to the surface of the base material; In a state where a considerable amount of heat remains in the base material 30 immediately after performing the step, the injection liquid is immediately supplied to the back surface of the base material through the injection hole of the lower mold, thereby obtaining the base material. And an injection molding step in which a large number of brackets and ribs are integrally molded on the back surface of the material.

【００１４】また、本発明の自動車用の内装材の成形装
置は、基材と表皮材とを加圧して所定の形態に融着成形
するプレス機の下金型の構成において、上記下金型の表
面の所定位置に多数のブラケット溝とリブ溝を形成する
と共に、これらのブラケット溝とリブ溝の底部のみに流
入管に連通する射出孔を各々形成し、プレス成形された
上記基材の裏面に多数のブラケットとリブが一体に射出
成形されるようにしたことを特徴とする。Further, the apparatus for molding an interior material for an automobile according to the present invention is characterized in that, in the configuration of a lower die of a press machine for pressing and bonding a base material and a skin material into a predetermined shape, A large number of bracket grooves and rib grooves are formed at predetermined positions on the front surface of the base, and injection holes communicating with the inflow pipes are formed only at the bottoms of these bracket grooves and rib grooves, respectively. And a large number of brackets and ribs are integrally formed by injection molding.

【００１５】[0015]

【発明の実施の形態】次に、本発明の実施の形態を図面
を参照して詳細に説明する。Next, embodiments of the present invention will be described in detail with reference to the drawings.

【００１６】図５〜図７は、本発明の成形装置によって
内装材を成形する課程を示す要部縦断面図であり、図８
は、本発明の成形装置によって基材の裏面にブラケット
とリブが一体に成形されたドアトリムを例示した斜視図
である。FIG. 5 to FIG. 7 are longitudinal sectional views of a main part showing a process of molding an interior material by the molding apparatus of the present invention.
FIG. 3 is a perspective view illustrating a door trim in which a bracket and a rib are integrally formed on the back surface of a base material by the molding apparatus of the present invention.

【００１７】本発明の成形装置は、基材３０と表皮材４
０とを加圧して所定の形態に融着成形するプレス機の下
金型の構成において、下金型１０の表面の所定位置に多
数のブラケット溝１１とリブ溝１２を形成すると共に、
これらのブラケット溝１１とリブ溝１２の底部のみに流
入管１４に連通する射出孔１３が各々形成されている。The molding apparatus of the present invention comprises a base material 30 and a skin material 4
In the configuration of the lower die of the press machine which press-bonds 0 and fuses into a predetermined form, a number of bracket grooves 11 and rib grooves 12 are formed at predetermined positions on the surface of the lower die 10,
An injection hole 13 communicating with the inflow pipe 14 is formed only at the bottom of the bracket groove 11 and the rib groove 12.

【００１８】図において、２０は上金型であり、３１は
基材３０の裏面に一体に成形されたブラケットであり、
３２は基材３０の裏面に一体に成形されたリブであり、
４１は表皮材４０の裏面に形成された発泡体層である。In the drawing, reference numeral 20 denotes an upper mold, 31 denotes a bracket integrally formed on the back surface of the base material 30,
32 is a rib integrally formed on the back surface of the substrate 30,
41 is a foam layer formed on the back surface of the skin material 40.

【００１９】このように形成された本発明の成形装置に
よって内装材を成形する方法は、予め所定温度で加熱し
た板状の基材３０と表皮材４０をプレス機で加圧して所
定の内装材の形態に融着成形し、上記基材３０に相当量
の熱が残留している状態で、この基材３０と同じ材質ま
たは互いに融着可能な材質からなる射出液をブラケット
溝１１とリブ溝１２のみに供給して（局部的な射出成
形）、上記基材３０の裏面にブラケット３１とリブ３２
が一体に成形されるようにしたものであり、以下では、
このような成形装置によって内装材を製造する課程を工
程別に詳細に説明する。The method of forming an interior material by the molding apparatus of the present invention thus formed is performed by pressing a plate-shaped base material 30 and a skin material 40 heated at a predetermined temperature in advance by a press machine. In a state where a considerable amount of heat remains in the base material 30, an injection liquid made of the same material as the base material 30 or a material that can be fused to each other is applied to the bracket groove 11 and the rib groove. 12 (local injection molding), a bracket 31 and a rib 32
Is to be molded integrally, in the following,
The process of manufacturing the interior material using such a molding apparatus will be described in detail for each process.

【００２０】第１の工程（プレス成形工程） 図５に示すように、予め所定温度で加熱して柔らかくな
った板状の基材３０を下金型１０上に載置し、この基材
３０上に表皮材４０を重ねた後、上金型２０を下降させ
て加圧することにより（図６）、上記基材３０の表面に
上記表皮材４０を融着成形するが、このような工程は従
来のプレス成形方法と同様である。 First Step (Press Forming Step) As shown in FIG. 5, a plate-shaped base material 30 which has been softened by heating at a predetermined temperature in advance is placed on a lower mold 10 and this base material 30 is pressed . After the skin material 40 is overlaid, the upper mold 20 is lowered and pressed (FIG. 6) to fuse and form the skin material 40 on the surface of the base material 30. It is the same as the conventional press molding method.

【００２１】第２の工程（射出成形工程） 上記のように、基材３０と表皮材４０とを融着成形した
直後に、即ち上記基材３０に相当量の熱が残留している
状態で、図７に示すように、流入管１４に連通された射
出孔１３を介して下金型１０に形成されたブラケット溝
１１とリブ溝１２に、上記基材３０と同じ材質または互
いに融着可能な材質からなる射出液を供給する。 Second Step (Injection Molding Step) As described above, immediately after the base material 30 and the skin material 40 are fusion-formed, that is, in a state where a considerable amount of heat remains in the base material 30. As shown in FIG. 7, the same material as that of the base material 30 or can be welded to the bracket groove 11 and the rib groove 12 formed in the lower mold 10 through the injection hole 13 communicating with the inflow pipe 14. Supply injection liquid made of various materials.

【００２２】このとき、上記上金型２０は、基材３０と
表皮材４０とを加圧して所定の形態に融着成形する上記
プレス成形工程をそのまま維持しており、また上記基材
３０は、相当量の熱がそのまま残留している状態である
ため、小さい射出圧力によって多数のブラケット溝１１
とリブ溝１２内に供給された射出液が基材３０の裏面に
容易に融着され、図８に示すように、基材３０の裏面に
ブラケット３１とリブ３２が一体に成形される。At this time, the upper mold 20 maintains the press forming step of pressing the base material 30 and the skin material 40 and fusing the base material 30 into a predetermined shape. Since a considerable amount of heat remains as it is, a small injection pressure causes a large number of bracket grooves 11 to be formed.
The injection liquid supplied into the rib groove 12 is easily fused to the back surface of the base material 30, and the bracket 31 and the rib 32 are integrally formed on the back surface of the base material 30 as shown in FIG.

【００２３】[0023]

【発明の効果】以上、詳細に説明したように、本発明に
よれば、基材と表皮材とを所定の形態に加圧して融着成
形する第１の工程は、従来の一般のプレス成形方法と同
様であると言えるが、上記第１の工程を行った直後に、
直ちに基材の裏面に多数のブラケットとリブを一体に射
出成形するため、別に成形したブラケットを下金型の所
定位置に一つ一つに嵌め込んでから加圧する従来のプレ
ス成形方法に比べて、その作業工程が非常に簡単であ
り、更に基材の裏面にリブを一体に射出成形することが
できるので、成形された内装材が後で変形することを防
止することができる。As described above in detail, according to the present invention, the first step of press-bonding the base material and the skin material to a predetermined form and fusing and forming is performed by the conventional general press forming. It can be said that it is the same as the method, but immediately after performing the first step,
Immediate injection molding of a large number of brackets and ribs on the back of the base material immediately compared to the conventional press molding method in which separately molded brackets are individually fitted into predetermined positions of the lower mold and then pressed. Since the working process is very simple and the ribs can be integrally formed on the back surface of the base material by injection molding, it is possible to prevent the molded interior material from being deformed later.

【００２４】また、本発明によれば、ブラケットとリブ
が成形される基材の裏面の局部的な部位のみに射出圧力
が作用するため、従来の低圧射出機による射出成形のよ
うに、高圧の射出圧力が作用して発泡体層が圧縮される
ことがない。従って、表皮材の当たりをより良好な状態
に維持することができるので、高品質の内装材を提供す
ることができる。Further, according to the present invention, since the injection pressure acts only on a local portion on the back surface of the base material on which the bracket and the rib are formed, high-pressure injection is performed as in the conventional low-pressure injection molding. The injection pressure does not act to compress the foam layer. Therefore, the contact of the skin material can be maintained in a better state, so that a high quality interior material can be provided.

【００２５】また、本発明によれば、安価な成形装置を
利用して上記のような自動車用の内装材を効果的に製造
することができるため、従来のように高価な低圧射出機
を具備することに比べて金型及び設備投資に費用をかけ
なくてもよいことから、製造コストを非常に削減するこ
とができる。従って、高品質の内装材を費用をかけず提
供することより、内装材の品質及び価格に対する競争力
を高めることができる。Further, according to the present invention, since the interior material for automobiles as described above can be effectively manufactured by using an inexpensive molding apparatus, an expensive low-pressure injection machine as in the prior art is provided. Since there is no need to spend on molds and capital investment as compared with the case of manufacturing, manufacturing costs can be greatly reduced. Therefore, by providing high-quality interior materials at no cost, it is possible to enhance the competitiveness with respect to the quality and price of interior materials.

【図面の簡単な説明】[Brief description of the drawings]

【図１】従来のプレス機によって成形されたドアトリム
を例示した斜視図である。FIG. 1 is a perspective view illustrating a door trim formed by a conventional press machine.

【図２】（Ｉ）は従来のプレス機による成形方法を示す
一部拡大縦断面図である。（ＩＩ）は（Ｉ）のプレス機
によって成形された内装材の構成を示す要部縦断面図で
ある。FIG. 2 (I) is a partially enlarged longitudinal sectional view showing a molding method using a conventional press machine. (II) is a principal part longitudinal cross-sectional view showing the configuration of the interior material formed by the press of (I).

【図３】従来の低圧射出機を利用した成形方法を示す要
部縦断面図である。FIG. 3 is a vertical sectional view of a main part showing a molding method using a conventional low-pressure injection machine.

【図４】（Ｉ）は、図３の成形方法による成形時におい
て、表皮材の発泡体層が高圧の射出圧力によって圧縮さ
れる前の状態を示す断面図である。（ＩＩ）は、図３の
成形方法による成形時において、表皮材の発泡体層が高
圧の射出圧力によって圧縮された状態を示す断面図であ
る。FIG. 4 (I) is a cross-sectional view showing a state before the foam layer of the skin material is compressed by a high injection pressure during molding by the molding method of FIG. 3; (II) is a sectional view showing a state in which the foam layer of the skin material is compressed by the high injection pressure at the time of molding by the molding method of FIG. 3.

【図５】本発明の成形装置によって内装材を成形する第
１の工程を示す要部縦断面図である。FIG. 5 is a longitudinal sectional view of a main part showing a first step of molding an interior material by the molding apparatus of the present invention.

【図６】前図に続く工程を示す要部縦断面図である。FIG. 6 is an essential part longitudinal cross sectional view showing a step following the previous figure.

【図７】前図に続く工程を示す要部縦断面図である。FIG. 7 is an essential part longitudinal cross sectional view showing a step that follows the previous figure.

【図８】本発明の成形装置によって基材の裏面にブラケ
ットとリブが一体に成形されたドアトリムを例示した斜
視図である。FIG. 8 is a perspective view illustrating a door trim in which a bracket and a rib are integrally formed on the back surface of a base material by the molding apparatus of the present invention.

【符号の説明】[Explanation of symbols]

１０…下金型 １１…ブラケット溝 １２…リブ溝 １３…射出孔 ２０…上金型 ３０…基材 ３１…ブラケット ３２…リブ ４０…表皮材 ４１…発泡体層 DESCRIPTION OF SYMBOLS 10 ... Lower mold 11 ... Bracket groove 12 ... Rib groove 13 ... Injection hole 20 ... Upper mold 30 ... Base material 31 ... Bracket 32 ... Rib 40 ... Skin material 41 ... Foam layer

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｂ２９Ｌ 9:00 31:30 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI // B29L 9:00 31:30

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 所定温度で加熱された板状の基材３０を
下金型１０上に載置し、この基材３０上に表皮材４０を
重ねた後、上金型２０を下降させて加圧することによ
り、上記基材３０の表面に上記表皮材４０を融着成形す
るプレス成形工程と、 上記プレス成形工程を行った直後における上記基材３０
に相当量の熱が残留している状態で、直ちに上記下金型
１０の射出孔１３を介して上記基材３０の裏面に射出液
を供給することにより、上記基材３０の裏面に多数のブ
ラケット３１とリブ３２が一体に射出成形されるように
する射出成形工程と、からなることを特徴とする自動車
用の内装材の成形方法。1. A plate-shaped base material 30 heated at a predetermined temperature is placed on a lower mold 10, a skin material 40 is stacked on the base material 30, and the upper mold 20 is lowered. By pressurizing, the press forming step of fusing and forming the skin material 40 on the surface of the base material 30; and the base material 30 immediately after performing the press forming step.
In a state where a considerable amount of heat remains, the injection liquid is immediately supplied to the back surface of the base material 30 through the injection hole 13 of the lower mold 10 so that a large number of An injection molding step in which the bracket 31 and the rib 32 are integrally formed by injection molding. 【請求項２】 基材３０と表皮材４０とを加圧して所定
の形態に融着成形するプレス機の下金型１０の構成にお
いて、 上記下金型１０の表面の所定位置に多数のブラケット溝
１１とリブ溝１２を形成すると共に、これらのブラケッ
ト溝１１とリブ溝１２の底部のみに流入管１４に連通す
る射出孔１３を各々形成し、 プレス成形された上記基材３０の裏面に多数のブラケッ
ト３１とリブ３２が一体に射出成形されるようにしたこ
とを特徴とする自動車用の内装材の成形装置。2. In a configuration of a lower die 10 of a press machine for pressing and bonding a base material 30 and a skin material 40 into a predetermined shape, a number of brackets are provided at predetermined positions on the surface of the lower die 10. The grooves 11 and the rib grooves 12 are formed, and the injection holes 13 communicating with the inflow pipes 14 are formed only at the bottoms of the bracket grooves 11 and the rib grooves 12, respectively. Wherein the bracket 31 and the rib 32 are integrally formed by injection molding.
JP10122117A 1997-05-01 1998-05-01 Method and apparatus for molding interior materials for automobiles Expired - Lifetime JP2964034B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1997-16912 1997-05-01
KR1019970016912A KR100241127B1 (en) 1997-05-01 1997-05-01 Auto internal plate moulding method

Publications (2)

Publication Number Publication Date
JPH11147261A true JPH11147261A (en) 1999-06-02
JP2964034B2 JP2964034B2 (en) 1999-10-18

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ID=19504729

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Application Number Title Priority Date Filing Date
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Country Link
JP (1) JP2964034B2 (en)
KR (1) KR100241127B1 (en)
CN (1) CN1198376A (en)
DE (1) DE19818881A1 (en)

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US9005355B2 (en) 2010-10-15 2015-04-14 Bunge Amorphic Solutions Llc Coating compositions with anticorrosion properties
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Also Published As

Publication number Publication date
CN1198376A (en) 1998-11-11
KR19980082175A (en) 1998-12-05
JP2964034B2 (en) 1999-10-18
KR100241127B1 (en) 2000-02-01
DE19818881A1 (en) 1998-11-05

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