JP2000263575A - Method for producing resin molded article having skin - Google Patents
Method for producing resin molded article having skinInfo
- Publication number
- JP2000263575A JP2000263575A JP7185799A JP7185799A JP2000263575A JP 2000263575 A JP2000263575 A JP 2000263575A JP 7185799 A JP7185799 A JP 7185799A JP 7185799 A JP7185799 A JP 7185799A JP 2000263575 A JP2000263575 A JP 2000263575A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- inner peripheral
- opening
- fixing
- skin
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】
【課題】 表皮材に設けられた開口の内周端末を、木目
込み用突起を用いることなく且つ表皮材の種類に関係な
く高い位置決め精度で樹脂製基材に埋め込むことができ
るようにする。
【解決手段】 表皮材１４の開口１４ａの内周縁部に幅
寸法（開口１４ａの周方向の寸法）Ｌ1 ＝１〜７ｍｍ
（好ましくは２〜５ｍｍ）の固定用凸部５６をＬ2＝１
〜７ｍｍ（好ましくは２〜５ｍｍ）の間隔で設け、それ
らの固定用凸部５６の先端部Ａ3 を裏面側の成形型に固
定した状態で、射出圧縮成形により樹脂製基材１２を表
皮材１４と一体成形することにより、領域Ａ2 が高い位
置決め精度で樹脂製基材１２内に埋め込まれるようにし
た。
(57) [Summary] [Object] An inner peripheral end of an opening provided in a skin material can be embedded in a resin base material with high positioning accuracy without using wood grain projections and regardless of the type of the skin material. To do. SOLUTION: A width dimension (a dimension in a circumferential direction of the opening 14a) L1 = 1 to 7 mm is provided on an inner peripheral edge portion of an opening 14a of a skin material 14.
(Preferably 2 to 5 mm) fixing protrusion 56 is L 2 = 1
～7Mm (preferably 2 to 5 mm) provided at intervals, in their state of the tip A 3 is fixed to the mold back surface side of the convex fixing part 56, the skin material to the resin substrate 12 by injection compression molding by integrally molded with 14, and so the area a 2 is embedded in the resin substrate 12 with high positioning accuracy.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は樹脂成形品の製造方
法に係り、特に、所定の開口を有する表皮材が樹脂製基
材の表面に一体的に固着されている樹脂成形品の製造方
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 method for manufacturing a resin molded article, and more particularly to a method for manufacturing a resin molded article in which a skin material having a predetermined opening is integrally fixed to a surface of a resin base material. Things.
【０００２】[0002]
【従来の技術】樹脂製基材の表面の一部または全面に表
皮材が一体的に固着されている樹脂成形品が、自動車の
ドアトリムやインストルメントパネルなどの内装部品、
或いは家電製品などに広く用いられている。そして、こ
のような表皮を有する樹脂成形品において、例えば車両
用ドアのインサイドハンドルベゼル部や各種スイッチの
ベース部、スピーカグリル部などの取付座、或いはレジ
スタ、サイドデフロスタなどの枠構造体等を樹脂製基材
により一体に構成するとともに、それ等を表面に露出さ
せるために表皮材に所定の開口を形成するようにしたも
のが、例えば特開平６−１８２７９４号公報や特開平６
−１８２７９３号公報等に記載されている。2. Description of the Related Art A resin molded product in which a skin material is integrally fixed to a part or the entire surface of a resin base material is used for interior parts such as door trims and instrument panels of automobiles.
Alternatively, it is widely used in home electric appliances and the like. In a resin molded product having such a skin, for example, an inside handle bezel portion of a vehicle door, a base portion of various switches, a mounting seat such as a speaker grill portion, or a frame structure such as a register and a side defroster are formed of a resin. Japanese Patent Application Laid-Open Nos. Hei 6-182794 and Hei 6-182794 disclose a structure in which a predetermined opening is formed in a skin material in order to expose them on the surface while being integrally formed by a base material.
No. 182,793.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の樹脂成形品においては、表皮材の開口の内周
縁部が成形型に固定されていないため、溶融樹脂材料の
流動に伴う表皮伸びにより内周端末の位置決めが難しか
った。内周縁部を位置決めする木目込み用の突起を成形
型に設けた場合、表皮材の開口の内周縁に沿って木目込
み用突起に起因する木目込み溝が生じることが避けられ
ないとともに、表皮材の種類が異なると伸び量が変化す
るため、図９の(a) 〜(c) に示すように木目込み溝１０
０に露出する表皮材１０２ａ、１０２ｂ、１０２ｃの内
周端末位置が変化する。これを防止するためには、表皮
材の種類毎に裁断型を取り替える必要がある。また、溶
融樹脂材料の流動長の差に基づいて表皮材表面側への樹
脂侵入および内周縁部の位置ずれを防止しているため、
製品形状の制約が大きかった。なお、図９の１０４は樹
脂製基材である。However, in such a conventional resin molded product, since the inner peripheral edge of the opening of the skin material is not fixed to the mold, the skin elongation due to the flow of the molten resin material is caused. It was difficult to position the inner peripheral terminal. If a projection for wood grain positioning for positioning the inner peripheral edge is provided in the mold, it is inevitable that a wood grain groove caused by the wood grain projection along the inner peripheral edge of the opening of the skin material, and the type of skin material is If they are different, the amount of elongation changes, and therefore, as shown in FIGS.
The inner peripheral terminal positions of the skin materials 102a, 102b, 102c exposed to 0 change. In order to prevent this, it is necessary to replace the cutting die for each type of skin material. In addition, based on the difference in the flow length of the molten resin material, since resin intrusion into the skin material surface side and displacement of the inner peripheral edge portion are prevented,
The restrictions on the product shape were great. Note that reference numeral 104 in FIG. 9 denotes a resin base material.
【０００４】本発明は以上の事情を背景として為された
もので、その目的とするところは、表皮材に設けられた
開口の内周端末を、木目込み用突起を用いることなく且
つ表皮材の種類に関係なく高い位置決め精度で樹脂製基
材に埋め込むことができるようにすることにある。[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an inner peripheral end of an opening provided in a skin material without using a graining projection and a type of the skin material. It is an object of the present invention to be able to embed a resin base material with high positioning accuracy regardless of the position.
【０００５】[0005]
【課題を解決するための手段】かかる目的を達成するた
めに、第１発明は、所定の開口を有する表皮材が樹脂製
基材の表面に一体的に固着されているとともに、その表
皮材の開口の内周縁部がその樹脂製基材に埋め込まれて
いる樹脂成形品を、一対の成形型の間で一体成形する製
造方法であって、前記表皮材の開口の内周縁部には、そ
の内周縁部の周方向の幅寸法が１〜７ｍｍの固定用凸部
がその周方向に１〜７ｍｍの間隔を隔てて複数設けられ
ているとともに、その固定用凸部の突出寸法は前記樹脂
製基材の裏面側へ突き出す寸法に設定されており、その
固定用凸部の先端をそれぞれ裏面側の成形型に固定した
状態で溶融樹脂材料を充填して前記樹脂製基材をその表
皮材と一体成形することを特徴とする。According to a first aspect of the present invention, a skin material having a predetermined opening is integrally fixed to a surface of a resin base material, and the skin material has a predetermined opening. A method of integrally molding a resin molded product in which the inner peripheral edge of the opening is embedded in the resin base material between a pair of molds, wherein the inner peripheral edge of the opening of the skin material includes A plurality of fixing protrusions having a width of 1 to 7 mm in the circumferential direction of the inner peripheral edge portion are provided at intervals of 1 to 7 mm in the circumferential direction, and the protrusion of the fixing protrusion is made of the resin. It is set to a size that protrudes to the back side of the base material, and the molten resin material is filled in a state where the tips of the fixing projections are fixed to the molding die on the back side, and the resin base material and its skin material It is characterized by being integrally molded.
【０００６】第２発明は、第１発明の表皮を有する樹脂
成形品の製造方法において、前記複数の固定用凸部は、
その固定用凸部の突出寸法だけ全体に突き出して設けら
れた延長部分に１〜７ｍｍの幅寸法の孔が１〜７ｍｍの
間隔を隔てて形成されることにより、その孔の間から先
の部分に設けられたもので、前記裏面側の成形型に固定
される先端部分が互いに連結されていることを特徴とす
る。According to a second invention, in the method for producing a resin molded product having a skin according to the first invention, the plurality of fixing projections are:
A hole having a width of 1 to 7 mm is formed at an interval of 1 to 7 mm in an extended portion provided so as to protrude entirely by the protrusion size of the fixing convex portion, so that a portion beyond the hole is formed. Wherein the tip portions fixed to the molding die on the back side are connected to each other.
【０００７】[0007]
【発明の効果】このような表皮を有する樹脂成形品の製
造方法においては、表皮材の開口の内周縁部に固定用凸
部が設けられて裏面側の成形型に固定されるようになっ
ているため、表皮材の伸び量に多少ばらつきがあっても
内周縁部が高い精度で位置決めされ、表皮材の種類に拘
らず同一の裁断型を使用して同一形状の表皮材を用いる
ことができるとともに、木目込み用突起を廃止すること
により例えば滑らかな一体感のある外観品質が得られる
ようになる。また、このように開口の内周縁部が固定さ
れることから、溶融樹脂材料の流動長の差に基づいて表
皮材表面側への樹脂侵入および内周縁部の位置ずれを防
止する場合に比較して、製品形状の制約が緩和される。According to the method for producing a resin molded article having a skin as described above, a fixing convex portion is provided on the inner peripheral edge of the opening of the skin material, and is fixed to a molding die on the back side. Therefore, even if there is some variation in the amount of elongation of the skin material, the inner peripheral portion is positioned with high accuracy, and the same shape of the skin material can be used using the same cutting die regardless of the type of the skin material. At the same time, by eliminating the wood grain projections, it is possible to obtain, for example, a smooth and integral appearance. Further, since the inner peripheral edge of the opening is fixed in this manner, compared to a case where resin intrusion into the skin material surface side and displacement of the inner peripheral edge are prevented based on the difference in the flow length of the molten resin material. Thus, restrictions on the product shape are eased.
【０００８】一方、本発明では上記固定用凸部の間隔が
１〜７ｍｍと狭いため、その固定用凸部の間に位置する
一般の内周縁部についても高い精度で位置決めされて、
確実に樹脂製基材に埋め込まれる。また、このように固
定用凸部の間隔が狭いことから、個々の固定用凸部の幅
寸法が１〜７ｍｍと狭くても、表皮材の位置決めを損な
う程固定用凸部が伸びる恐れがなく、そのように固定用
凸部の幅寸法が狭くされることによりウェルドラインの
発生が抑制される。On the other hand, in the present invention, since the interval between the fixing protrusions is as narrow as 1 to 7 mm, the general inner peripheral portion located between the fixing protrusions is also positioned with high accuracy.
It is reliably embedded in the resin base material. In addition, since the interval between the fixing projections is narrow, even if the width dimension of each fixing projection is as narrow as 1 to 7 mm, there is no possibility that the fixing projections extend so as to impair the positioning of the skin material. The narrowing of the width of the fixing projection suppresses the occurrence of a weld line.
【０００９】延長部分に所定の孔を形成することによっ
て固定用凸部を設けた第２発明においては、固定用凸部
の先端部分が互いに連結されているため、その先端部分
を裏面側の成形型に固定するための型構造が簡単且つ安
価に構成される。In the second aspect of the present invention, in which the fixing projection is provided by forming a predetermined hole in the extension, the tips of the fixing projections are connected to each other. The mold structure for fixing to the mold is simple and inexpensive.
【００１０】[0010]
【発明の実施の形態】ここで、本発明は自動車のドアト
リムやインストルメントパネルなどの内装部品に好適に
適用されるが、家電製品など部分表皮を有する種々の樹
脂成形品に適用され得る。樹脂製基材や表皮材として
は、一般に使用される種々の材料を用いることが可能
で、表皮材としては例えば織布、編布、不織布、塩化ビ
ニル・ＴＰＯ等のレザー、軟質系フィルムなどが用いら
れる。また、単層体であっても積層体であっても良く、
上記表皮材にクッション層としてウレタンやＰＰフォー
ム等を固着したものでも良い。更に、裏打ちとしてＰＥ
Ｔ、ＰＡ、ＰＰ等の織布、編布、不織布等を用いること
もできる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Here, the present invention is suitably applied to interior parts such as door trims and instrument panels of automobiles, but can be applied to various resin molded articles having partial skins such as home electric appliances. Various commonly used materials can be used as the resin base material and the skin material. Examples of the skin material include woven fabric, knitted fabric, nonwoven fabric, leather such as vinyl chloride / TPO, and soft films. Used. Also, it may be a single-layer body or a laminate,
Urethane, PP foam, or the like may be fixed to the skin material as a cushion layer. In addition, PE
A woven fabric, a knitted fabric, a nonwoven fabric, or the like such as T, PA, and PP can also be used.
【００１１】表皮材の開口の内周縁部は、その全周に亘
って樹脂製基材に埋め込まれ、その全周について本発明
を適用することが望ましいが、部分的に固定用凸部の幅
寸法や間隔に関する本発明要件を満たさない部分があっ
ても良い。例えば深い凹凸部では本発明方法を適用し、
比較的平坦な部分では固定用凸部の間隔を広くしたりし
てもよく、全周に本発明を適用する場合に比較して安い
型費で凹凸の大きな立体感のある部分でも表皮に皺や位
置ずれのない樹脂成形品が得られる。本発明の適用に際
しても、木目込み用突起を廃止して一体感のある外観品
質を得ることができるが、意匠的に所定の突起を設けて
表皮材の開口の内周縁に沿って意図的に溝を設けること
を妨げるものではない。The inner peripheral edge of the opening of the skin material is embedded in the resin base material over the entire circumference, and it is desirable to apply the present invention to the entire circumference. There may be a portion that does not satisfy the requirements of the present invention regarding dimensions and intervals. For example, the method of the present invention is applied to a deep uneven portion,
In a relatively flat part, the interval between the fixing protrusions may be widened, and even in a part having a large three-dimensional effect with a small unevenness at a low mold cost as compared with the case where the present invention is applied to the entire circumference, wrinkles on the skin And a resin molded product without displacement. Also in the application of the present invention, it is possible to obtain the appearance quality with a sense of unity by abolishing the wood grain projections, but to provide a predetermined projection in design and intentionally groove along the inner peripheral edge of the opening of the skin material. It does not prevent the provision of
【００１２】固定用凸部の幅寸法は、表皮材の材質等に
応じて１〜７ｍｍの範囲内で設定されるが、１ｍｍ未満
では伸びたり切れたりして位置決めが困難であり、７ｍ
ｍより大きくなるとウェルドラインが発生し易くなる。
固定用凸部の間隔については、１ｍｍ未満になると溶融
樹脂材料の流動が阻害されて充填が困難になり、７ｍｍ
より大きくなると、固定用凸部の伸びなどにより固定用
凸部の間の一般の内周縁部の位置決め精度が悪くなる。
なお、上記幅寸法および間隔は、それぞれ２〜５ｍｍの
範囲内で設定することが望ましい。第２発明の孔の幅寸
法および間隔についても、同様に２〜５ｍｍの範囲内で
設定することが望ましい。The width of the fixing projection is set within a range of 1 to 7 mm according to the material of the skin material, but if it is less than 1 mm, it will be stretched or cut, and positioning will be difficult.
If it is larger than m, a weld line is likely to occur.
When the distance between the fixing protrusions is less than 1 mm, the flow of the molten resin material is hindered and the filling becomes difficult, and the distance between the fixing protrusions becomes 7 mm
If it becomes larger, the positioning accuracy of a general inner peripheral portion between the fixing protrusions deteriorates due to elongation of the fixing protrusions.
It is desirable that the width and the interval are set within a range of 2 to 5 mm, respectively. Similarly, it is desirable to set the width and the interval of the hole of the second invention within the range of 2 to 5 mm.
【００１３】第１発明の固定用凸部は、例えば表皮材の
開口の内周縁から櫛歯状に突き出すように多数設けられ
る。固定用凸部の形状は矩形が望ましいが、適宜定めら
れる。第２発明において延長部分に設けられる孔は、丸
や楕円、長円、角形、正方形、長方形など適宜定められ
る。また、第２発明においては、孔の最大幅寸法が１〜
７ｍｍの範囲内で、隣接する孔の最小離間距離が１〜７
ｍｍの範囲内であれば良い。A large number of fixing projections of the first invention are provided, for example, so as to protrude in a comb shape from the inner peripheral edge of the opening of the skin material. The shape of the fixing projection is desirably rectangular, but is appropriately determined. In the second invention, the hole provided in the extension portion is appropriately determined such as a circle, an ellipse, an ellipse, a square, a square, and a rectangle. In the second invention, the maximum width dimension of the hole is 1 to
Within a range of 7 mm, the minimum distance between adjacent holes is 1 to 7
mm.
【００１４】上記固定用凸部のうち樹脂製基材の裏面側
へ突き出している部分は、邪魔でなければそのまま残し
ておいても良いが、必要に応じて切除することも勿論可
能である。The portion of the fixing projection protruding toward the rear surface of the resin base material may be left as it is without obstruction, but may be cut off as needed.
【００１５】溶融樹脂材料は、少なくとも表皮材の固定
用凸部が固定された裏面側の成形型とその表皮材との間
に充填する必要があり、例えば裏面側の成形型に設けら
れた供給路から溶融樹脂材料を射出するようにすれば良
い。表皮材と裏面側の成形型との間に供給された溶融樹
脂材料は、他方（表面側）の成形型の成形面に表皮材を
押圧して成形するとともに、固定用凸部の間を通って表
皮材の開口の内側へ流出して樹脂製基材を構成するが、
必要に応じて表皮材の開口内に位置する部分にも直接溶
融樹脂材料を供給するようにしても良い。樹脂製基材お
よび表皮材の一体成形は、溶融樹脂材料の射出圧のみで
成形する射出成形でも良いが、溶融樹脂材料を充填した
後に一対の成形型を接近させて加圧する射出圧縮成形が
望ましい。It is necessary to fill the molten resin material between at least the back surface-side molding die to which the fixing projections of the skin material are fixed and the skin material. The molten resin material may be injected from the road. The molten resin material supplied between the skin material and the molding die on the back side presses the skin material onto the molding surface of the other (front surface) molding die, and passes between the fixing projections. To flow into the inside of the opening of the skin material to constitute the resin base material,
If necessary, the molten resin material may be directly supplied to the portion located in the opening of the skin material. The integral molding of the resin base material and the skin material may be injection molding in which molding is performed only by the injection pressure of the molten resin material, but injection compression molding in which a pair of molds are brought close to each other and then pressurized after filling with the molten resin material is preferable. .
【００１６】樹脂製基材のうち、表皮材の開口の内側に
位置する部分には、例えばドアトリムの場合、車両用ド
アのインサイドハンドルベゼル部や各種スイッチのベー
ス部、スピーカグリル部などの取付座が一体に設けら
れ、インストルメントパネルの場合、レジスタやサイド
デフロスタなどの枠構造体が一体に設けられることが望
ましいが、それ等の取付座や枠構造体を別体に構成し
て、樹脂製基材に設けられた取付穴内にそれ等を取り付
けるようになっていても良い。また、表皮材の開口内で
は単に樹脂製基材の表面が露出しているだけでも良い。
要するに、表皮材に設けられた開口の内周縁部が樹脂製
基材に埋め込まれるようになっておれば良く、その開口
内の構成については適宜定められる。In a portion of the resin base material located inside the opening of the skin material, for example, in the case of a door trim, an inside handle bezel portion of a vehicle door, a base portion of various switches, and a mounting seat such as a speaker grill portion. In the case of an instrument panel, it is desirable that a frame structure such as a register and a side defroster be provided integrally. They may be mounted in mounting holes provided in the base material. Further, the surface of the resin base material may be simply exposed in the opening of the skin material.
In short, it is sufficient that the inner peripheral edge of the opening provided in the skin material is embedded in the resin base material, and the configuration in the opening is appropriately determined.
【００１７】以下、本発明の実施例を図面を参照しつつ
詳細に説明する。図１の(a) は、本発明方法に従って製
造された樹脂成形品としての自動車のドアトリム１０を
示す正面図で、熱可塑性樹脂にて構成された樹脂製基材
１２の表面の一部には、オーナメントとして島状の表皮
材１４が一体的に設けられているとともに、その表皮材
１４には矩形の開口１４ａ、１４ｂ、１４ｃが設けられ
ている。表皮材１４の外周縁部は全周に亘って樹脂製基
材１２に埋め込まれているとともに、開口１４ａ、１４
ｂ、１４ｃの内周縁部もそれぞれ全周に亘って樹脂製基
材１２に埋め込まれている。また、開口１４ａの内側に
は、取付座としてインサイドハンドルを取り付けるため
のインサイドハンドルベゼル部５０が樹脂製基材１２と
一体に設けられ、開口１４ｂ、１４ｃの内側には、取付
座として各種スイッチを取り付けるためのスイッチベー
ス部５２、５４が同じく樹脂製基材１２と一体に設けら
れている。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1A is a front view showing an automobile door trim 10 as a resin molded product manufactured according to the method of the present invention, and a part of the surface of a resin base material 12 made of a thermoplastic resin is shown. An island-shaped skin material 14 is integrally provided as an ornament, and the skin material 14 is provided with rectangular openings 14a, 14b, and 14c. The outer periphery of the skin material 14 is embedded in the resin base material 12 over the entire circumference, and the openings 14a, 14
The inner peripheral edges of b and 14c are also embedded in the resin base material 12 over the entire circumference. Inside the opening 14a, an inside handle bezel portion 50 for attaching an inside handle as a mounting seat is provided integrally with the resin base material 12, and inside the openings 14b and 14c, various switches are provided as mounting seats. Switch base portions 52 and 54 for attachment are also provided integrally with the resin base material 12.
【００１８】図２は、上記インサイドハンドルベゼル部
５０の近傍すなわち開口１４ａ付近の断面図で、開口１
４ａの内周縁部には、図１の(b) に示すように櫛歯状に
略矩形の固定用凸部５６が内周縁の全周に亘って多数設
けられている。図１の(b) は、成形前の表皮材１４の開
口１４ａの内周縁形状を示す図である。他の開口１４
ｂ、１４ｃも開口１４ａと同様に構成されているが、以
下、開口１４ａを例として具体的に説明する。なお、表
皮材１４の外周縁部も開口１４ａの内周縁部と同様にし
て樹脂製基材１２に埋め込まれている。また、インサイ
ドハンドルベゼル部５０やスイッチベース部５２、５４
の具体的な形状は省略してある。FIG. 2 is a sectional view showing the vicinity of the inside handle bezel 50, that is, the vicinity of the opening 14a.
As shown in FIG. 1 (b), a large number of comb-shaped substantially rectangular fixing projections 56 are provided on the inner peripheral edge of the inner peripheral edge of the inner peripheral edge of the inner peripheral edge of the inner peripheral edge 4a. FIG. 1B is a view showing the inner peripheral shape of the opening 14a of the skin material 14 before molding. Other openings 14
Although b and 14c have the same configuration as the opening 14a, the opening 14a will be specifically described below as an example. The outer peripheral edge of the skin material 14 is also embedded in the resin base material 12 in the same manner as the inner peripheral edge of the opening 14a. Also, the inside handle bezel 50 and the switch bases 52, 54 are provided.
Are omitted from the figure.
【００１９】図１の(b) において、固定用凸部５６の幅
寸法（開口１４ａの周方向の寸法）Ｌ1 は１〜７ｍｍの
範囲内、好ましくは２〜５ｍｍの範囲内で設定されてお
り、周方向に所定の間隔Ｌ2 を隔てて設けられている。
間隔Ｌ2 は、同じく１〜７ｍｍの範囲内で、好ましくは
２〜５ｍｍの範囲内で設定されている。また、固定用凸
部５６の突出寸法は、ドアトリム１０の裏面（樹脂製基
材１２の裏面と同じ）１０ｂ側へ突き出す寸法に設定さ
れており、図３に示す一対の成形型１６、１８のうちド
アトリム１０の裏面１０ｂを成形する成形型１８に固定
されるようになっている。樹脂製基材１２のうち表皮材
１４の開口１４ａの内周縁部が埋め込まれる部分には、
所定寸法だけ裏面１０ｂ側へ突き出すように環状に凸部
２０が設けられており、固定用凸部５６の先端部はこの
凸部２０から突き出すようになっている。図１(b) にお
ける表皮材１４の領域Ａ1 は、成形後においてドアトリ
ム１０の表面１０ａに露出する部分で、領域Ａ2 は樹脂
製基材１２内に埋め込まれる部分で、領域Ａ3 はドアト
リム１０の裏面１０ｂ側へ突き出す部分である。また、
図２における開口１４ａの右側の内周縁部は固定用凸部
５６の断面で、左側の内周縁部は固定用凸部５６の間に
位置する一般の内周縁部５８の断面である。In FIG. 1B, the width dimension L1 of the fixing projection 56 (the dimension in the circumferential direction of the opening 14a) is set in the range of 1 to 7 mm, preferably in the range of 2 to 5 mm. cage, are provided at predetermined intervals L 2 in the circumferential direction.
Distance L 2, like in the range of 1 to 7 mm, preferably set within a range of 2 to 5 mm. The protrusion of the fixing protrusion 56 is set to a size protruding toward the back surface 10b of the door trim 10 (same as the back surface of the resin base material 12). The door trim 10 is fixed to a molding die 18 for molding the rear surface 10b of the door trim 10. In the portion of the resin base material 12 where the inner peripheral edge of the opening 14a of the skin material 14 is embedded,
The convex portion 20 is provided in an annular shape so as to protrude toward the back surface 10 b by a predetermined size, and the tip of the fixing convex portion 56 protrudes from the convex portion 20. Area A 1 of the skin material 14 in FIG. 1 (b), the portion exposed on the surface 10a of the door trim 10 after molding, the area A 2 in the portion that is embedded in the resin substrate 12, the area A 3 is the door trim 10 is a portion protruding toward the back surface 10b side. Also,
The right inner peripheral edge of the opening 14a in FIG. 2 is a cross section of the fixing convex portion 56, and the left inner peripheral edge is a cross section of a general inner peripheral edge 58 located between the fixing convex portions 56.
【００２０】図３の成形型１６、１８は射出圧縮成形を
行うためのもので、成形型１６は上型であり、上下方向
へ往復移動させられるとともに、目的とするドアトリム
１０の表面１０ａに対応する成形面１６ａを備えてい
る。この成形面１６ａには、意匠的にドアトリム１０の
表面１０ａのうち表皮材１４の開口１４ａの内周縁に沿
って僅かな凹み１０ｃを形成するために環状の凸条１６
ｂが設けられている。成形型１８は下型で、成形型１６
の下方に位置固定に配設されるようになっており、ドア
トリム１０の裏面１０ｂに対応する成形面１８ａを備え
ている。The molding dies 16 and 18 shown in FIG. 3 are for performing injection compression molding. The molding dies 16 are upper dies, which are reciprocated in the vertical direction and correspond to the surface 10a of the target door trim 10. Forming surface 16a. In order to form a slight recess 10c along the inner peripheral edge of the opening 14a of the skin material 14 in the surface 10a of the door trim 10, the annular projection 16 is formed in the molding surface 16a.
b is provided. The molding die 18 is a lower die,
And a molding surface 18 a corresponding to the back surface 10 b of the door trim 10.
【００２１】成形型１８は、下型本体２２と、その下型
本体２２のうち前記表皮材１４の固定用凸部５６を固定
する部分、すなわち開口１４ａの内周縁部に対応する部
分に設けられた環状のスライド型２４とを含んで構成さ
れている。スライド型２４は上下方向の移動可能に下型
本体２２に配設され、図に示す下降端位置に保持される
ことにより、下型本体２２と共に上記成形面１８ａを形
成するとともに、固定用凸部５６の先端部を下型本体２
２との間で挟圧して固定する。下型本体２２には、固定
用凸部５６に対応して多数の固定用溝２２ａが形成され
ているとともに、樹脂製基材１２を構成する溶融樹脂材
料を供給する供給路２２ｂが設けられている。供給路２
２ｂは、成形面１８ａのうち表皮材１４が設けられる部
分は勿論、表皮材１４が設けられない部分にも開口させ
られているが、少なくとも表皮材１４の裏側へ充填され
た溶融樹脂材料が固定用凸部５６の間を通って開口１４
ａの内側へ流動させられるようになっている。また、下
型本体２２およびスライド型２４には、前記固定用溝２
２ａに連続するようにそれぞれ環状の切欠溝２６、２８
が設けられ、これ等の環状の切欠溝２６、２８によって
前記凸部２０が形成されるようになっている。The molding die 18 is provided on the lower mold body 22 and a portion of the lower mold body 22 for fixing the fixing projection 56 of the skin material 14, that is, a portion corresponding to the inner peripheral edge of the opening 14a. And an annular slide mold 24. The slide die 24 is disposed on the lower die main body 22 so as to be movable in the vertical direction, and is held at the lower end position shown in the figure, thereby forming the molding surface 18a together with the lower die main body 22 and fixing protrusions. The tip of 56 is the lower die body 2
2 and fix it. A number of fixing grooves 22a are formed in the lower mold body 22 corresponding to the fixing protrusions 56, and a supply path 22b for supplying a molten resin material constituting the resin base material 12 is provided. I have. Supply path 2
2b is opened not only at the portion of the molding surface 18a where the skin material 14 is provided but also at the portion where the skin material 14 is not provided, but at least the molten resin material filled on the back side of the skin material 14 is fixed. Opening 14 passing between the convex portions 56
It is made to flow inside of a. The lower mold body 22 and the slide mold 24 are provided with the fixing grooves 2.
Annular cutout grooves 26, 28 so as to be continuous with 2a
Are provided, and the convex portion 20 is formed by these annular cutout grooves 26 and 28.
【００２２】そして、このような成形型１６、１８を用
いてドアトリム１０を射出圧縮成形する際には、先ず、
成形型１６を上昇させた状態で表皮材１４を成形型１８
に配置する。すなわち、スライド型２４を上昇させると
ともに、表皮材１４の開口１４ａの内周縁部に設けられ
た多数の固定用凸部５６をそれぞれ固定用溝２２ａ内に
挿入した後、スライド型２４を下降端位置まで下降させ
て固定用凸部５６を挟圧して固定する。スライド型２４
には、上方へ向かうに従って内周側および外周側へ幅寸
法が大きくなるテーパが設けられているため、下降端位
置まで下降させられることにより固定用溝２２ａ内に確
実に固定用凸部５６を固定できる。When the door trim 10 is subjected to injection compression molding using such molding dies 16, 18, first,
With the mold 16 raised, the skin material 14 is
To place. That is, the slide mold 24 is raised, and a number of fixing protrusions 56 provided on the inner peripheral edge of the opening 14a of the skin material 14 are inserted into the fixing grooves 22a, respectively. Then, the fixing protrusion 56 is pressed and fixed. Slide type 24
Is provided with a taper whose width increases toward the inner peripheral side and the outer peripheral side as it goes upward, so that the fixing convex portion 56 is securely inserted into the fixing groove 22a by being lowered to the lower end position. Can be fixed.
【００２３】次に、成形型１６を型締め位置よりも僅か
に上方の射出位置まで下降させて、供給路２２ｂから溶
融樹脂材料を充填する。このように溶融樹脂材料が充填
されることにより、表皮材１４は成形型１６の成形面１
６ａに押圧されて成形されるとともに、その表皮材１４
の裏側へ充填された溶融樹脂材料の一部は固定用凸部５
６の間を通って開口１４ａの内側へ流動し、開口１４ａ
の内周縁部が図２に示すように滑らかに湾曲させられ
る。ドアトリム１０の裏面１０ｂ側には凸部２０が設け
られるため、溶融樹脂材料の流通面積を十分に確保でき
る。そして、表皮材１４の裏側以外の部分にも十分に溶
融樹脂材料が充填された状態で、成形型１６を型締め位
置まで下降させて圧縮成形することにより、溶融樹脂材
料の冷却、硬化に伴って樹脂製基材１２が高い精度で表
皮材１４と一体成形され、目的とするドアトリム１０が
得られる。図２では、裏面１０ｂの凸部２０から固定用
凸部５６の先端が突き出しているが、必要に応じて切除
すれば良い。Next, the molding die 16 is lowered to the injection position slightly above the mold clamping position, and the molten resin material is filled from the supply passage 22b. By filling the molten resin material in this manner, the skin material 14 is formed on the molding surface 1 of the molding die 16.
6a is pressed and molded, and its skin material 14
Of the molten resin material filled into the back side of the
6 and flows into the inside of the opening 14a.
Is smoothly curved as shown in FIG. Since the convex portion 20 is provided on the back surface 10b side of the door trim 10, the flow area of the molten resin material can be sufficiently secured. Then, in a state where the molten resin material is sufficiently filled also in a portion other than the back side of the skin material 14, the molding die 16 is lowered to the mold clamping position and compression-molded, thereby cooling and curing the molten resin material. As a result, the resin base material 12 is integrally formed with the skin material 14 with high accuracy, and the desired door trim 10 is obtained. In FIG. 2, the tip of the fixing projection 56 protrudes from the projection 20 on the back surface 10b, but may be cut off as needed.
【００２４】ここで、本実施例では表皮材１４の開口１
４ａの内周縁部に固定用凸部５６が設けられて成形型１
８に固定されるようになっているため、表皮材１４の伸
び量に多少ばらつきがあっても内周縁部が高い精度で位
置決めされ、表皮材１４の種類に拘らず同一の裁断型を
使用して同一形状の表皮材１４を用いることができると
ともに、木目込み用突起を廃止して意匠用の凸条１６ｂ
を設けることにより、表皮材１４の開口１４ａに沿って
僅かな凹み１０ｃを有するメリハリのある外観品質が得
られるようになる。また、このように開口１４ａの内周
縁部が位置決めされることから、溶融樹脂材料の流動長
の差に基づいて表皮材表面側への樹脂侵入および内周縁
部の位置ずれを防止する場合に比較して、製品形状の制
約が緩和される。In this embodiment, the opening 1 of the skin material 14 is used.
A fixing projection 56 is provided on the inner peripheral edge of the molding die 1a.
8, the inner peripheral edge is positioned with high accuracy even if the amount of elongation of the skin material 14 varies somewhat, and the same cutting die is used regardless of the type of the skin material 14. And the same shape of the skin material 14 can be used.
Is provided, a sharp appearance quality having a slight recess 10c along the opening 14a of the skin material 14 can be obtained. In addition, since the inner peripheral edge of the opening 14a is positioned as described above, it is compared with a case in which resin intrusion into the skin material surface side and displacement of the inner peripheral edge are prevented based on the difference in the flow length of the molten resin material. Thus, restrictions on the product shape are relaxed.
【００２５】一方、本実施例では上記固定用凸部５６の
間隔Ｌ2 が１〜７ｍｍ（好ましくは２〜５ｍｍ）と狭い
ため、その固定用凸部５６の間に位置する一般の内周縁
部５８についても高い精度で位置決めされて、確実に樹
脂製基材１２に埋め込まれる。また、このように固定用
凸部５６の間隔Ｌ2 が狭いことから、個々の固定用凸部
５６の幅寸法Ｌ1 が１〜７ｍｍ（好ましくは２〜５ｍ
ｍ）と狭くても、表皮材１４の位置決めを損なう程固定
用凸部５６が伸びる恐れがなく、そのように固定用凸部
５６の幅寸法Ｌ1 が狭くされることによりウェルドライ
ンの発生が抑制される。On the other hand, in this embodiment, since the interval L 2 between the fixing projections 56 is as narrow as 1 to 7 mm (preferably 2 to 5 mm), a general inner peripheral portion located between the fixing projections 56 is used. 58 is also positioned with high accuracy and is reliably embedded in the resin base material 12. Further, since the thus distance L 2 of the convex fixing part 56 is narrow, the width L 1 of each of the fixing projection 56 is 1 to 7 mm (preferably 2~5m
Even if it is as narrow as m), there is no danger that the fixing protrusion 56 will extend so as to impair the positioning of the skin material 14, and the width dimension L 1 of the fixing protrusion 56 is narrowed so that a weld line is generated. Is suppressed.
【００２６】上記幅寸法Ｌ1 や間隔Ｌ2 は、固定用凸部
５６の伸び等に拘らず一般の内周縁部５８がドアトリム
１０の表面１０ａに露出することがなく、確実に樹脂製
基材１２内に埋め込まれるように、表皮材１４の材質な
どを考慮して前記１〜７ｍｍの範囲内で適宜定められ
る。また、これらの幅寸法Ｌ1 や間隔Ｌ2 を、図１の
(a) に示す表皮材１４の開口１４ａの内周形状の曲率に
応じて部分的に変更することもできる。The width L 1 and the interval L 2 are such that the general inner peripheral edge 58 is not exposed to the surface 10 a of the door trim 10 irrespective of the extension of the fixing protrusion 56, and the resin base material The thickness is appropriately determined within the range of 1 to 7 mm in consideration of the material of the skin material 14 and the like so as to be embedded in the inside 12. Moreover, these width L 1 and spacing L 2, of FIG. 1
It can be partially changed according to the curvature of the inner peripheral shape of the opening 14a of the skin material 14 shown in FIG.
【００２７】次に、本発明の他の実施例を説明する。な
お、以下の実施例において前記実施例と実質的に共通す
る部分には同一の符号を付して詳しい説明を省略する。Next, another embodiment of the present invention will be described. In the following embodiments, portions substantially common to the above embodiments are given the same reference numerals, and detailed description thereof will be omitted.
【００２８】図４は、ドアトリム１０の表面１０ａの形
状の別の例を示す図で、(a) は前記成形型１６の成形面
１６ａの凸条１６ｂを除去して凹み１０ｃを無くしたも
ので、滑らかな一体感のある外観品質が得られる。(b)
は、表面１０ａにおける表皮材１４の開口１４ａの内周
縁に沿って木目込み溝に似た溝３０を設けた場合で、成
形型１６の成形面１６ａに木目込み用の突起と同様な凸
条を設けることによって形成できる。FIG. 4 is a view showing another example of the shape of the surface 10a of the door trim 10. FIG. 4 (a) shows an example in which the ridge 16b of the molding surface 16a of the molding die 16 is removed and the dent 10c is eliminated. , Smooth appearance quality with a sense of unity can be obtained. (b)
Is a case in which a groove 30 similar to a wood grain groove is provided along the inner peripheral edge of the opening 14a of the skin material 14 on the surface 10a, and a protrusion similar to the wood grain protrusion is provided on the molding surface 16a of the molding die 16. Can be formed by
【００２９】図５は、表皮材１４の固定用凸部５６を成
形型１８に固定する部分の別の態様を示す図で、(a) は
前記下型本体２２の切欠溝２６を略無くした場合であ
り、(b) は前記スライド型２４の切欠溝２８を略無くし
た場合である。(a) 、(b) 何れの場合も、前記凸部２０
の幅寸法が約１／２になる。なお、樹脂製基材１２の肉
厚が厚くて、固定用凸部５６の間の溶融樹脂材料の流動
を十分に確保できる場合には、凸部２０を無くして裏面
１０ｂを平坦にすることもできる。FIG. 5 is a view showing another embodiment of a portion for fixing the fixing projection 56 of the skin material 14 to the molding die 18. FIG. 5A is a view in which the cutout groove 26 of the lower die main body 22 is substantially eliminated. (B) is a case where the notch groove 28 of the slide die 24 is substantially eliminated. (a), (b) In any case, the convex portion 20
Becomes about 1/2. When the thickness of the resin base material 12 is large and the flow of the molten resin material between the fixing protrusions 56 can be sufficiently ensured, the rear surface 10b may be flattened without the protrusions 20. it can.
【００３０】図６は、前記図１の(b) に相当する図で、
この表皮材１４の開口１４ａの内周縁部には樹脂製基材
１２内に埋め込まれる前記領域Ａ2 に、１〜７ｍｍ（好
ましくは２〜５ｍｍ）の幅寸法Ｌ3 の孔３２を１〜７ｍ
ｍ（好ましくは２〜５ｍｍ）の間隔Ｌ4 を隔てて形成す
ることにより、それ等の孔３２の間から先の部分を固定
用凸部３４としたもので、その固定用凸部３４の先端
部、すなわち樹脂製基材１２の裏面側へ突き出す領域Ａ
3 は連結部３６を介して互いに連結されている。本実施
例では孔３２は円孔で、幅寸法Ｌ3 は直径寸法であり、
孔３２よりも先の部分が延長部分に相当する。また、間
隔Ｌ4 は固定用凸部３４の幅寸法で、幅寸法Ｌ3 は固定
用凸部３４の間隔に相当する。図７は、このような孔３
２が形成された表皮材１４を用いて製造したドアトリム
１０の断面図で、前記図２に相当する図である。FIG. 6 is a diagram corresponding to FIG.
The area A 2 This is the inner peripheral edge portion of the opening 14a of the skin material 14 embedded in the resin base material in 12, 1 to 7 mm (preferably 2~5mm) 1~7m the width L 3 of the holes 32 of the
m (preferably 2 to 5 mm) by forming at intervals L 4 of which was from between it and the like of the hole 32 the previous sections and the convex fixing part 34, the tip of the convex fixing part 34 Part, that is, the area A protruding toward the back side of the resin base material 12
3 are connected to each other via a connecting portion 36. Holes 32 in this embodiment is a circular hole, the width dimension L 3 is a diameter,
The portion ahead of the hole 32 corresponds to the extension. The distance L 4 represents a width dimension of the convex fixing part 34, the width dimension L 3 corresponds to the interval of the convex fixing part 34. FIG. 7 shows such a hole 3
FIG. 3 is a cross-sectional view of the door trim 10 manufactured using the skin material 14 on which the second member 2 is formed, and is a view corresponding to FIG. 2.
【００３１】この場合にも前記実施例と同様な効果が得
られるのに加えて、前記成形型１８の下型本体２２とス
ライド型２４との間で挟圧される部分すなわち固定用凸
部３４の先端部が連結部３６を介して連なっているた
め、前記固定用溝２２ａをスライド型２４に沿って環状
に連続して形成すれば良く、形状が単純になって成形型
１８が簡単且つ安価に構成される。In this case, the same effect as that of the above embodiment can be obtained, and in addition, the portion to be pressed between the lower die body 22 and the slide die 24 of the molding die 18, that is, the fixing projection 34 Are connected via the connecting portion 36, so that the fixing groove 22a may be formed annularly and continuously along the slide die 24, and the shape is simple, and the forming die 18 is simple and inexpensive. It is composed of
【００３２】図８のドアトリム４０は、前記樹脂製基材
１２の表面のうち前記表皮材（オーナメント）１４を除
く部分に別の表皮材４２を一体的に固着したものであ
る。表皮材４２には、スピーカ装着位置に開口４２ａが
設けられており、樹脂製基材１２のうち開口４２ａの内
側に位置する部分には、取付座としてスピーカを取り付
けるためのスピーカグリル部４４が一体に設けられてい
る。そして、上記表皮材４２の開口４２ａの内周縁部の
処理にも本発明が適用され、前記開口１４ａと同様にし
て樹脂製基材１２に埋め込まれている。なお、前記イン
サイドハンドルベゼル部５０、スイッチベース部５２、
５４が表皮材４２の内側部分に設けられる場合にも、表
皮材４２に形成される開口の内周縁部の処理に本発明を
適用して樹脂製基材１２に埋め込むことができる。ま
た、表皮材４２の上に重ねて表皮材（オーナメント）１
４を設けることも可能で、その場合には表皮材４２に設
けられた開口内を貫通して開口１４ａの内周縁部を樹脂
製基材１２に埋め込んだり、表皮材１４および４２に設
けられた開口の内周縁部を重ねて樹脂製基材１２に埋め
込んだりすれば良い。The door trim 40 shown in FIG. 8 is obtained by integrally fixing another skin material 42 to a portion of the surface of the resin base material 12 other than the skin material (ornament) 14. The skin material 42 is provided with an opening 42a at a speaker mounting position, and a portion of the resin base material 12 located inside the opening 42a is integrally provided with a speaker grill portion 44 for mounting a speaker as a mounting seat. It is provided in. The present invention is also applied to the processing of the inner peripheral edge of the opening 42a of the skin material 42, and is embedded in the resin base material 12 in the same manner as the opening 14a. The inside handle bezel 50, the switch base 52,
Even when 54 is provided inside the skin material 42, the present invention can be applied to the processing of the inner peripheral edge portion of the opening formed in the skin material 42 and embedded in the resin base material 12. Also, the skin material (ornament) 1 is superimposed on the skin material 42.
4 can also be provided. In this case, the inner peripheral edge of the opening 14a penetrates through the opening provided in the skin material 42 and is embedded in the resin base material 12 or provided in the skin materials 14 and 42. The openings may be embedded in the resin base material 12 by overlapping the inner peripheral edges of the openings.
【００３３】以上、本発明の実施例を図面に基づいて詳
細に説明したが、本発明は他の態様で実施することもで
きる。Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention can be embodied in other forms.
【００３４】例えば、前記実施例では一体の環状のスラ
イド型２４が用いられていたが、このスライド型２４を
複数に分割して構成することも可能で、固定用凸部５６
が設けられた部分のみに配設するようにしても良い。開
口１４ａに対応する外周形状の円柱状のスライド型を採
用することもできる。また、図３の左右方向（言い換え
れば、開口１４ａの内周縁に対して直角な方向）へ移動
する複数のスライド型を用いて固定用凸部５６を固定す
ることもできるなど、固定用凸部５６を成形型１８に固
定する方法は適宜変更できる。For example, in the above-described embodiment, the integral annular slide mold 24 is used, but the slide mold 24 may be divided into a plurality of parts, and the fixing protrusion 56 may be used.
May be provided only in the portion provided with. A cylindrical slide type having an outer peripheral shape corresponding to the opening 14a may be employed. Further, the fixing protrusion 56 can be fixed using a plurality of slide dies that move in the left-right direction of FIG. 3 (in other words, a direction perpendicular to the inner peripheral edge of the opening 14a). The method of fixing the 56 to the mold 18 can be changed as appropriate.
【００３５】また、前記図１および図２に示すドアトリ
ム１０を製造する場合でも、固定用溝２２ａが環状に連
続して形成された成形型１８を用いることが可能であ
る。その場合には、凸部２０から断続して突き出す固定
用凸部５６の間の部分に樹脂製基材１２のバリが生じる
が、必要に応じて後処理で除去すれば良い。Also, in the case of manufacturing the door trim 10 shown in FIGS. 1 and 2, it is possible to use the molding die 18 in which the fixing grooves 22a are formed continuously in an annular shape. In such a case, burrs of the resin base material 12 are generated at portions between the fixing protrusions 56 intermittently protruding from the protrusions 20, but may be removed by post-processing as necessary.
【００３６】その他一々例示はしないが、本発明は当業
者の知識に基づいて種々の変更，改良を加えた態様で実
施することができる。Although not specifically exemplified, the present invention can be embodied in various modified and improved forms based on the knowledge of those skilled in the art.
【図１】本発明方法に従って製造された樹脂成形品を説
明する図で、(a) は樹脂成形品の正面図、(b) はその樹
脂成形品に用いられている表皮材の所定の開口の内周縁
部の形状を示す図である。FIG. 1 is a view for explaining a resin molded product manufactured according to the method of the present invention, wherein (a) is a front view of the resin molded product, and (b) is a predetermined opening of a skin material used in the resin molded product. FIG. 4 is a view showing the shape of the inner peripheral edge of the rim.
【図２】図１の樹脂成形品のうち表皮材に開口が設けら
れた部分の断面図である。FIG. 2 is a cross-sectional view of a portion of the resin molded product of FIG. 1 in which an opening is provided in a skin material.
【図３】図１の樹脂成形品を射出圧縮成形する成形型の
一例を示す断面図である。FIG. 3 is a sectional view showing an example of a molding die for injection-compression molding the resin molded product of FIG.
【図４】図１の樹脂成形品の別の例を説明する図で、図
２に相当する図である。FIG. 4 is a diagram for explaining another example of the resin molded product of FIG. 1, and is a diagram corresponding to FIG. 2;
【図５】図１の樹脂成形品において表皮材が樹脂製基材
に埋め込まれる部分の別の態様を説明する断面図であ
る。FIG. 5 is a cross-sectional view illustrating another embodiment of a portion where a skin material is embedded in a resin base material in the resin molded product of FIG.
【図６】図１の樹脂成形品に用いられる表皮材の開口の
内周縁部の形状の別の例を示す図である。FIG. 6 is a view showing another example of the shape of the inner peripheral edge of the opening of the skin material used in the resin molded product of FIG. 1;
【図７】図６の表皮材を用いた場合の樹脂成形品の断面
図で、図２に相当する図である。7 is a cross-sectional view of a resin molded product when the skin material of FIG. 6 is used, and is a diagram corresponding to FIG.
【図８】本発明方法が好適に適用される樹脂成形品の別
の例を示す正面図である。FIG. 8 is a front view showing another example of a resin molded product to which the method of the present invention is suitably applied.
【図９】従来の樹脂成形品において、表皮材の伸び量の
ばらつきによって生じる開口の内周端末部の位置ずれの
例を示す断面図である。FIG. 9 is a cross-sectional view showing an example of a displacement of an inner peripheral end portion of an opening caused by a variation in the amount of elongation of a skin material in a conventional resin molded product.
１０、４０：ドアトリム（樹脂成形品） １２：樹脂
製基材 １４、４２：表皮材 １４ａ、１４ｂ、１
４ｃ、４２ａ：開口 １６、１８：成形型 ３２：孔 ３４、５６：固定用凸部10, 40: Door trim (resin molded product) 12: Resin base material 14, 42: Skin material 14a, 14b, 1
4c, 42a: Opening 16, 18: Mold 32: Hole 34, 56: Fixing projection
Claims (2)
の表面に一体的に固着されているとともに、該表皮材の
開口の内周縁部が該樹脂製基材に埋め込まれている樹脂
成形品を、一対の成形型の間で一体成形する製造方法で
あって、 前記表皮材の開口の内周縁部には、該内周縁部の周方向
の幅寸法が１〜７ｍｍの固定用凸部が該周方向に１〜７
ｍｍの間隔を隔てて複数設けられているとともに、該固
定用凸部の突出寸法は前記樹脂製基材の裏面側へ突き出
す寸法に設定されており、該固定用凸部の先端をそれぞ
れ裏面側の成形型に固定した状態で溶融樹脂材料を充填
して前記樹脂製基材を該表皮材と一体成形することを特
徴とする表皮を有する樹脂成形品の製造方法。1. A resin in which a skin material having a predetermined opening is integrally fixed to a surface of a resin base material, and an inner peripheral edge portion of the opening of the skin material is embedded in the resin base material. A manufacturing method for integrally molding a molded product between a pair of molding dies, wherein an inner peripheral edge of an opening of the skin material has a fixing width of 1 to 7 mm in a circumferential direction of the inner peripheral edge. Part is 1-7 in the circumferential direction
A plurality of protrusions are provided at an interval of mm, and the projecting dimension of the fixing protrusion is set to a size protruding toward the back side of the resin base material. A method for producing a resin molded article having a skin, characterized in that a molten resin material is filled in a state of being fixed to the mold and the resin base material is integrally formed with the skin material.
の突出寸法だけ全体に突き出して設けられた延長部分に
１〜７ｍｍの幅寸法の孔が１〜７ｍｍの間隔を隔てて形
成されることにより、該孔の間から先の部分に設けられ
たもので、前記裏面側の成形型に固定される先端部分が
互いに連結されていることを特徴とする請求項１に記載
の表皮を有する樹脂成形品の製造方法。2. A plurality of fixing projections, each having a width of 1 to 7 mm at an interval of 1 to 7 mm in an extended portion provided so as to protrude entirely by the projection of the fixing projection. 2. The tip according to claim 1, wherein, by being formed, the tip portions fixed to the mold on the back surface side are connected to each other, provided at a portion ahead of the hole. A method for producing a resin molded product having a skin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7185799A JP3862886B2 (en) | 1999-03-17 | 1999-03-17 | Manufacturing method of resin molded product having skin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7185799A JP3862886B2 (en) | 1999-03-17 | 1999-03-17 | Manufacturing method of resin molded product having skin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000263575A true JP2000263575A (en) | 2000-09-26 |
| JP3862886B2 JP3862886B2 (en) | 2006-12-27 |
Family
ID=13472629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7185799A Expired - Fee Related JP3862886B2 (en) | 1999-03-17 | 1999-03-17 | Manufacturing method of resin molded product having skin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3862886B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006525151A (en) * | 2003-05-08 | 2006-11-09 | エーセーイーエム テクノロジーズ ベー．フェー． | Method and apparatus for manufacturing vehicle parts |
| JP2023033930A (en) * | 2021-08-30 | 2023-03-13 | 日本プラスト株式会社 | Resin molded product and production method thereof |
-
1999
- 1999-03-17 JP JP7185799A patent/JP3862886B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006525151A (en) * | 2003-05-08 | 2006-11-09 | エーセーイーエム テクノロジーズ ベー．フェー． | Method and apparatus for manufacturing vehicle parts |
| JP2023033930A (en) * | 2021-08-30 | 2023-03-13 | 日本プラスト株式会社 | Resin molded product and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3862886B2 (en) | 2006-12-27 |
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