JP2003001740A - Skin-integrated foam molded article and method for molding it - Google Patents
Skin-integrated foam molded article and method for molding itInfo
- Publication number
- JP2003001740A JP2003001740A JP2001185937A JP2001185937A JP2003001740A JP 2003001740 A JP2003001740 A JP 2003001740A JP 2001185937 A JP2001185937 A JP 2001185937A JP 2001185937 A JP2001185937 A JP 2001185937A JP 2003001740 A JP2003001740 A JP 2003001740A
- Authority
- JP
- Japan
- Prior art keywords
- skin
- core material
- bent portion
- foam
- standing wall
- 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.)
- Pending
Links
- 238000000465 moulding Methods 0.000 title claims description 28
- 239000006260 foam Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 14
- 239000011162 core material Substances 0.000 claims abstract description 49
- 230000002093 peripheral effect Effects 0.000 claims abstract description 25
- 238000005187 foaming Methods 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 210000003491 skin Anatomy 0.000 description 62
- 239000010410 layer Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Molding Of Porous Articles (AREA)
- Instrument Panels (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、芯材と表皮との
間に発泡層が一体成形された表皮一体発泡成形品及びそ
の成形方法の改良に関し、特に成形時のシール対策と外
観見栄え対策に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin-integrated foam-molded article in which a foam layer is integrally molded between a core material and a skin, and an improvement in the molding method thereof, and more particularly to a measure for sealing at the time of molding and a measure for appearance. It is a thing.
【0002】[0002]
【従来の技術】特開平7−314469号公報には、芯
材と表皮との間に発泡層が一体成形された表皮一体発泡
成形品としてのインストルメントパネルが開示されてい
る。このインストルメントパネルでは、表皮裏面側へ突
出する折曲部が表皮周縁に形成され、インストルメント
パネル表面側に開口する溝部を有する突出部が上記折曲
部端縁に形成されている。上記突出部の先端は、上記芯
材の起立壁内周面に当接していて、インストルメントパ
ネル成形時に発泡原料が漏れないようにしている。ま
た、上記折曲部は、インストルメントパネル成形時の発
泡圧により上記溝部が外部から見えないように上記起立
壁に当接していて、表皮(折曲部)と芯材(起立壁)と
の間に隙間が生じないようにしている。2. Description of the Related Art Japanese Patent Application Laid-Open No. 7-314469 discloses an instrument panel as a skin-integrated foam-molded article in which a foam layer is integrally molded between a core material and a skin. In this instrument panel, a bent portion projecting to the back surface side of the skin is formed on the peripheral edge of the skin, and a projecting portion having a groove opening to the front surface side of the instrument panel is formed at the edge of the bent portion. The tip of the protruding portion is in contact with the inner peripheral surface of the standing wall of the core member so that the foaming raw material does not leak when the instrument panel is molded. The bent portion is in contact with the standing wall so that the groove portion cannot be seen from the outside due to foaming pressure at the time of molding the instrument panel, and the skin (folded portion) and the core material (standing wall) are separated from each other. There is no gap between them.
【0003】そして、このインストルメントパネルを成
形する際、保持具を下型側から突出させて上記突起部の
溝部に挿入させることにより、折曲部を保持して表皮の
位置決めをしている。When the instrument panel is molded, the holder is projected from the lower mold side and inserted into the groove of the protrusion to hold the bent portion and position the skin.
【0004】[0004]
【発明が解決しようとする課題】ところで、成形時にシ
ール性を向上させたり、成形後に表皮と芯材との間に隙
間が生じないようにする観点からは、表皮の折曲部が発
泡圧の作用で芯材の起立壁側に撓み易くすることが望ま
しい。そのためには、突出部の突出長さを短くするとと
もに、溝部底面側の突出部の肉厚を薄くする必要があ
る。By the way, from the viewpoint of improving the sealing property at the time of molding and preventing a gap between the skin and the core material after the molding, the bent portion of the skin has a foaming pressure. It is desirable that the core member be easily bent toward the standing wall by the action. For that purpose, it is necessary to shorten the projecting length of the projecting portion and thin the wall thickness of the projecting portion on the bottom surface side of the groove portion.
【0005】しかし、上記の従来例では、図2(b)に
示すように、表皮aの折曲部b及び突出部cは、1枚の
表皮a周縁をU字状に折曲した形状であるため、突出部
cの突出長さL1が折曲部bの肉厚T1と溝部dの溝幅
Wとを足した長さになり、しかも、溝部d底面側の突出
部cの肉厚T2が折曲部bの肉厚T1と同等になってお
り、突出部cの突出長さL1を短くするとともに、溝部
d底面側の突出部cの肉厚T2を薄くするには限界があ
る。However, in the above-mentioned conventional example, as shown in FIG. 2B, the bent portion b and the protruding portion c of the outer skin a are formed by bending the periphery of one outer skin a into a U shape. Therefore, the protrusion length L1 of the protrusion c is the sum of the thickness T1 of the bent portion b and the groove width W of the groove d, and moreover, the thickness T2 of the protrusion c on the bottom surface side of the groove d. Is equal to the wall thickness T1 of the bent portion b, and there is a limit to shortening the protruding length L1 of the protruding portion c and reducing the wall thickness T2 of the protruding portion c on the bottom surface side of the groove d.
【0006】この発明はかかる点に鑑みてなされたもの
であり、その目的とするところは、表皮の折曲部と芯材
との境目のシール性及び外観見栄えを向上させることで
ある。The present invention has been made in view of the above points, and an object thereof is to improve the sealing property and appearance of the boundary between the bent portion of the skin and the core material.
【0007】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、この発明は、表皮周縁のエッジ部から突出して芯材
の起立壁に当接する突出部の形状に工夫を凝らしたこと
を特徴とする。In order to achieve the above-mentioned object, the present invention is characterized in that the shape of the protruding portion protruding from the edge portion of the peripheral edge of the skin and abutting against the standing wall of the core material is devised. To do.
【0008】具体的には、この発明は、芯材と表皮との
間に発泡層が一体成形された表皮一体発泡成形品及びそ
の成形方法を対象とし、次のような解決手段を講じた。Specifically, the present invention is directed to a skin-integrated foam-molded article in which a foam layer is integrally molded between a core material and a skin and a molding method therefor, and the following means for solving the problems have been taken.
【0009】すなわち、請求項1に記載の発明は、前者
の表皮一体発泡成形品に関するものであり、上記芯材に
は、表皮形成領域に対応して発泡層収容凹部を構成する
起立壁が形成され、上記表皮周縁には、表皮裏面側へ突
出して表皮表面側が上記起立壁内周面に当接する折曲部
が形成され、上記折曲部端縁には、該折曲部の肉厚と同
等の突出長さ及び突出厚さを有し先端が上記起立壁内周
面に当接する突出部が形成され、上記突出部の表皮一体
発泡成形品表面側には、表皮一体発泡成形品の成形時に
上記折曲部を保持する保持具が挿入される溝部が形成さ
れていることを特徴とする。That is, the invention according to claim 1 relates to the former skin-integrated foam-molded article, wherein the core material is provided with a standing wall constituting a foam layer accommodating recess corresponding to the skin-forming region. The outer peripheral edge is formed with a bent portion that protrudes toward the back surface of the outer surface and the outer surface of the outer surface abuts the inner peripheral surface of the standing wall, and the edge of the bent portion has a wall thickness of the bent portion. A protrusion having the same protrusion length and protrusion and having a tip abutting against the inner peripheral surface of the standing wall is formed, and the skin-integrated foam molded product is molded on the surface side of the skin-integrated foam molded product of the protrusion. A groove is formed so that a holder for holding the bent portion can be inserted.
【0010】上記の構成により、請求項1に記載の発明
では、突出部の突出長さが従来例に比べて短くなるとと
もに、溝部底面側の突出部の肉厚が従来例に比べて薄く
なるため、表皮の折曲部が発泡圧の作用で芯材の起立壁
側に撓み易くなり、成形時のシール性が向上して発泡原
料が漏れない。また、成形後に表皮と芯材との間に隙間
が生じず、外観見栄えが向上する。With the above structure, in the invention according to claim 1, the protrusion length of the protrusion is shorter than that of the conventional example, and the thickness of the protrusion on the bottom surface side of the groove is thinner than that of the conventional example. Therefore, the bent portion of the skin easily bends toward the standing wall of the core material due to the action of foaming pressure, the sealing property at the time of molding is improved, and the foaming raw material does not leak. In addition, no gap is formed between the skin and the core material after molding, and the appearance is improved.
【0011】請求項2に記載の発明は、後者の表皮一体
発泡成形品の成形方法に関するものであり、表皮周縁に
表皮裏面側へ突出して形成された折曲部が上型側に突出
するように表皮を下型に載置し、上記折曲部端縁に該折
曲部の肉厚と同等の突出長さ及び突出厚さを有して形成
された突出部の表皮一体発泡成形品表面側に形成された
溝部を保持具に挿入して上記折曲部を保持して位置決め
することにより表皮を下型にセットするとともに、芯材
の起立壁が上記表皮の折曲部に対応するように上記芯材
を上型にセットし、次いで、上記上型と下型とにより成
形型を型閉じして上記表皮の突出部先端を上記芯材の起
立壁内周面に当接させ、その後、型開き状態で又は型閉
じ後にキャビティに注入された発泡原料の発泡途中で上
記保持具を上記突出部の溝部から抜き、上記発泡原料の
さらなる発泡膨張による発泡圧により上記折曲部の表皮
表面側を上記起立壁内周面に当接させるとともに、発泡
層が上記起立壁により表皮成形領域に対応して構成され
た発泡層収容凹部に収容されて上記芯材と表皮との間に
一体成形された表皮一体発泡成形品を得ることを特徴と
する。The second aspect of the present invention relates to the latter method for forming a foam-integrated skin-molded article, in which the bent portion formed on the peripheral edge of the skin so as to project to the back side of the skin projects to the upper mold side. The outer skin is placed on the lower mold, and the surface of the foam-integrated molded article of the protruding portion is formed with a protruding length and a protruding thickness that are equal to the wall thickness of the bent portion at the edge of the bent portion. The outer skin is set in the lower mold by inserting the groove formed on the side into the holder and holding and positioning the bent portion so that the standing wall of the core material corresponds to the bent portion of the skin. Then, the core material is set in an upper mold, and then the molding die is closed by the upper mold and the lower mold to bring the tip of the protruding portion of the skin into contact with the inner peripheral surface of the standing wall of the core material, and thereafter During the foaming of the foam raw material injected into the cavity in the mold open state or after the mold is closed, the holder is pushed The outer surface of the bent portion is brought into contact with the inner peripheral surface of the standing wall by the foaming pressure due to further foaming expansion of the foaming raw material, and the foam layer corresponds to the skin forming region by the standing wall. It is characterized in that a foam-integrated foam-molded article which is housed in the foamed-layer housing recess formed as described above and integrally molded between the core material and the skin is obtained.
【0012】上記の構成により、請求項2に記載の発明
では、保持具を表皮に対して出入れする簡単な操作で、
請求項1に記載の作用効果を奏する表皮一体発泡成形品
が得られる。With the above structure, in the invention according to the second aspect, the simple operation of putting the holder in and out of the epidermis allows
It is possible to obtain a skin-integrated foam-molded article that exhibits the effects of the first aspect.
【0013】[0013]
【発明の実施の形態】以下、この発明の実施の形態につ
いて図面に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【0014】図1はこの発明の実施の形態に係る表皮材
一体発泡成形品としての車両用インストルメントパネル
1を示すが、これに限らず、ドアトリム等の自動車用内
装品や自動車用内装品以外のものにも適用することがで
きるものである。FIG. 1 shows a vehicle instrument panel 1 as a skin material-integral foam-molded article according to an embodiment of the present invention. However, the invention is not limited to this. It can also be applied to.
【0015】上記インストルメントパネル1は、芯材3
と表皮5との間に発泡層7が一体成形された3層構造の
アッパーパネル部9と、芯材3だけの単層構造のロアパ
ネル部11とで構成されている。図1中、3aは上記ロ
アパネル部11の芯材3に開設されたエア吹出口であ
り、このエア吹出口3aにはグリル13が装着されてい
る。15はステアリングホイールである。The instrument panel 1 includes a core member 3
The upper panel portion 9 has a three-layer structure in which the foam layer 7 is integrally formed between the outer skin 5 and the outer skin 5, and the lower panel portion 11 has a single-layer structure including only the core material 3. In FIG. 1, reference numeral 3a denotes an air outlet opened in the core member 3 of the lower panel portion 11, and a grill 13 is attached to the air outlet 3a. Reference numeral 15 is a steering wheel.
【0016】上記芯材3の端縁部3b近傍には、表皮形
成領域に対応して発泡層収容凹部3cを構成する起立壁
17が形成されている。一方、上記表皮5周縁には、図
2(a)にも拡大して示すように、表皮5裏面側へ突出
して表皮5表面側が上記起立壁17内周面に当接する折
曲部19が形成されている。また、上記折曲部19端縁
には、該折曲部19の肉厚T1と同等の突出長さL2及
び突出厚さT3を有し先端が上記起立壁17内周面に当
接する突出部21が形成されている。さらに、上記突出
部21のインストルメントパネル1表面側には、インス
トルメントパネル1の成形時に上記折曲部19を保持す
る後述する保持具109(図3〜6参照)が挿入される
溝部21aが形成されている。この溝部21a底面側の
突出部21の肉厚T4が溝部21aの深さD分だけ薄肉
になっている。そして、上記折曲部19は、インストル
メントパネル1成形時の発泡圧により上記起立壁17に
当接していて、上記溝部21aが外部から見えないよう
に覆い、かつ表皮5(折曲部19)と芯材3(起立壁1
7)との間に隙間が生じないようにしている。このよう
な表皮5はパウダスラッシュ成形法により成形すること
ができる。In the vicinity of the edge portion 3b of the core material 3, a standing wall 17 which constitutes a foam layer accommodating concave portion 3c is formed corresponding to the skin forming region. On the other hand, as shown in an enlarged view in FIG. 2A, a bent portion 19 is formed on the peripheral edge of the outer skin 5 so as to project to the back surface side of the outer skin 5 and the front surface side of the outer skin 5 contacts the inner peripheral surface of the standing wall 17. Has been done. In addition, a projecting portion having a projecting length L2 and a projecting thickness T3 which are equal to the wall thickness T1 of the bent portion 19 at the end edge of the bent portion 19 and the tip of which is in contact with the inner peripheral surface of the standing wall 17 21 is formed. Further, on the front surface side of the instrument panel 1 of the projecting portion 21, there is provided a groove portion 21a into which a holder 109 (see FIGS. 3 to 6) described later that holds the bent portion 19 when the instrument panel 1 is molded is inserted. Has been formed. The wall thickness T4 of the protruding portion 21 on the bottom surface side of the groove portion 21a is reduced by the depth D of the groove portion 21a. The bent portion 19 is in contact with the standing wall 17 due to the foaming pressure during molding of the instrument panel 1, covers the groove portion 21a so as not to be seen from the outside, and covers the skin 5 (folded portion 19). And core material 3 (standing wall 1
No gap is created between this and 7). Such a skin 5 can be formed by the powder slush molding method.
【0017】上述の如く構成されたインストルメントパ
ネル1は、図3〜6に示すような下型101と上型10
3とを備えた成形型105を用いて以下の要領にて成形
される。The instrument panel 1 constructed as described above has a lower mold 101 and an upper mold 10 as shown in FIGS.
It is molded in the following manner using the molding die 105 provided with 3.
【0018】(1) 図3に示すように、上型103
(図4〜6に現れる)を上昇させて成形型105を型開
きした状態で、下型101の表材セット面101aに表
皮5を折曲部19が上型103側に突出するように表皮
5表側を当接させて載置する。(1) As shown in FIG. 3, the upper mold 103
(Appearing in FIGS. 4 to 6) is lifted to open the molding die 105, and the skin 5 is formed on the surface material setting surface 101a of the lower mold 101 so that the bent portion 19 projects toward the upper mold 103. 5 Place with the front side in contact.
【0019】(2) 上記下型101の一端側(図3左
端側)に設置された流体圧シリンダ107を伸長作動さ
せてそのピストンロッド107a先端に連結された保持
具109を前進させ、該保持具109先端に突出部21
の溝部21aを挿入して上記折曲部19を外方へ倒れな
いように保持して位置決めすることにより、表皮5を下
型101の表材セット面101aにセットする。この状
態で、下型101に形成した図示しない真空吸引孔から
の負圧により表皮5を下型101に密着させる。(2) The fluid pressure cylinder 107 installed on one end side (the left end side in FIG. 3) of the lower mold 101 is extended to advance the holder 109 connected to the tip of the piston rod 107a thereof to advance the holder. Projection 21 at the tip of the tool 109
The outer skin 5 is set on the surface material setting surface 101a of the lower die 101 by inserting the groove portion 21a of the above and holding and positioning the bent portion 19 so as not to fall outward. In this state, the skin 5 is brought into close contact with the lower mold 101 by negative pressure from a vacuum suction hole (not shown) formed in the lower mold 101.
【0020】(3) 一方、図4に示すように、芯材3
の起立壁17が上記表皮5の折曲部19に対応するよう
に上記芯材3を上記上型103の芯材セット面103a
に芯材3の裏側が当接するようにセットする。その際、
上記上型103のほぼ中央に設置された芯材保持装置
(図示せず)で芯材3が上型103から落下しないよう
に保持する。(3) On the other hand, as shown in FIG.
Of the core material 3 so that the standing wall 17 of the upper mold 103 corresponds to the bent portion 19 of the skin 5.
Set so that the back side of the core material 3 contacts. that time,
A core material holding device (not shown) installed substantially in the center of the upper mold 103 holds the core material 3 so as not to drop from the upper mold 103.
【0021】(4) 上記上型103を図4矢印Aで示
すように斜め上方から下降させて成形型105を型閉じ
する(図5参照)。これにより、上記表皮5の突出部2
1先端が上記芯材3の起立壁17内周面に当接し、両者
が面接触状態で押圧されて当該箇所がシールされる。(4) The upper die 103 is lowered obliquely from above as shown by the arrow A in FIG. 4 to close the forming die 105 (see FIG. 5). Thereby, the protruding portion 2 of the skin 5
One tip is brought into contact with the inner peripheral surface of the standing wall 17 of the core material 3, and both are pressed in a surface contact state to seal the location.
【0022】その他の箇所は、表皮5周縁を成形型10
5の型閉じ力により芯材3に突設された突条(図示せ
ず)に対して線接触状態で押圧することにより当該箇所
がシールされる。At other points, the peripheral edge of the skin 5 is formed by the molding die 10.
By pressing the ridge (not shown) protruding from the core material 3 in a line contact state by the mold closing force of 5, the location is sealed.
【0023】このように、上記上型103と下型101
とにより成形型105を型閉じして表皮5周縁を全周に
亘ってシールすることで、発泡原料のキャビティ外への
漏出を防止するようにしている。As described above, the upper mold 103 and the lower mold 101 are
By closing the molding die 105 and sealing the peripheral edge of the skin 5 over the entire circumference, the leakage of the foaming raw material to the outside of the cavity is prevented.
【0024】(5) 発泡原料(図示せず)を上記上型
103に設けた注入ヘッド(図示せず)から表皮5と芯
材3との間のキャビティ111内に注入する。(5) A foaming material (not shown) is injected into the cavity 111 between the skin 5 and the core 3 from an injection head (not shown) provided on the upper mold 103.
【0025】(6) キャビティ111に注入された発
泡原料の発泡途中で、上記流体圧シリンダ107を収縮
作動させて上記保持具109を上記突出部21の溝部2
1aから抜く(図6参照)。この保持具109を抜くタ
イミングは、発泡原料が表皮5の折曲部19に達し、さ
らに発泡を続けている間に行うのが好ましい。これによ
り、保持具109を抜いた後、発泡圧により起立壁17
と折曲部19との間の隙間を完全になくすことができ
る。(6) During the foaming of the foaming raw material injected into the cavity 111, the fluid pressure cylinder 107 is contracted to cause the holder 109 to move into the groove 2 of the protrusion 21.
Remove from 1a (see FIG. 6). It is preferable that the holding tool 109 is pulled out while the foaming raw material reaches the bent portion 19 of the skin 5 and the foaming is continued. As a result, after the holder 109 is pulled out, the standing wall 17 is formed by the foaming pressure.
It is possible to completely eliminate the gap between the bent portion 19 and the bent portion 19.
【0026】(7) 上記発泡原料がさらに発泡膨張す
ると、その発泡圧により上記折曲部19の表皮5表面側
が上記起立壁17内周面に当接するとともに、発泡層7
が発泡層収容凹部3cに収容されて上記芯材3と表皮5
との間に一体成形されたインストルメントパネル1が成
形される。(7) When the foaming raw material further expands and expands, the foaming pressure causes the surface 5 surface side of the bent portion 19 to contact the inner peripheral surface of the standing wall 17, and the foaming layer 7
Are accommodated in the foam layer accommodating recess 3c, and the core material 3 and the skin 5 are
The instrument panel 1 which is integrally molded between and is molded.
【0027】この際、上記表皮5の突出部21の突出長
さL2を従来例に比べて短く設定しているとともに、溝
部21a底面側の突出部21の肉厚T4を従来例に比べ
て薄く設定していることから、表皮5の折曲部19を発
泡圧の作用で芯材3の起立壁17側に撓み易くすること
ができ、成形時のシール性を向上させることができて発
泡原料の漏れを防止することができる。また、成形後に
表皮5と芯材3との間に隙間を生じないようにすること
ができて外観見栄えを向上させることができる。さら
に、上記保持具109を表皮5に対して出入れする簡単
な操作で、上述の如き作用効果を奏するインストルメン
トパネル1を成形することができる。At this time, the projecting length L2 of the projecting portion 21 of the skin 5 is set shorter than that of the conventional example, and the wall thickness T4 of the projecting portion 21 on the bottom side of the groove 21a is thinner than that of the conventional example. Since it is set, the bent portion 19 of the skin 5 can be easily bent toward the standing wall 17 side of the core material 3 by the action of the foaming pressure, and the sealing property at the time of molding can be improved, and the foam raw material can be obtained. Can be prevented from leaking. Further, it is possible to prevent a gap from being formed between the skin 5 and the core material 3 after the molding, so that the appearance and appearance can be improved. Furthermore, the instrument panel 1 having the above-described effects can be formed by a simple operation of putting the holder 109 in and out of the skin 5.
【0028】(8) 図6に示すように、発泡原料がキ
ャビティ111内でキュアし、アッパーパネル部9にお
いて表皮5と芯材3との間に発泡層7が一体成形された
インストルメントパネル1が成形される。(8) As shown in FIG. 6, the instrument panel 1 in which the foaming raw material is cured in the cavity 111 and the foam layer 7 is integrally molded between the skin 5 and the core material 3 in the upper panel section 9. Is molded.
【0029】(9) 芯材保持装置を作動させ、芯材3
の芯材保持装置による保持を解除した後、上型103を
上昇させて成形型105を型開きし、しかる後、上記成
形されたインストルメントパネル1を下型101から脱
型する。(9) The core holding device is operated to move the core 3
After releasing the holding by the core material holding device, the upper die 103 is lifted to open the molding die 105, and then the molded instrument panel 1 is released from the lower die 101.
【0030】なお、上記の実施の形態では、表皮5を下
型101の表材セット面101aに載置した後、保持具
109を前進させ、該保持具109先端に突出部21の
溝部21aを挿入して折曲部19を位置決めしたが、こ
れとは逆に、保持具109を前進させた状態で表皮5を
下型101の表材セット面101aに載置し、その後、
上記保持具109先端に突出部21の溝部21aを挿入
して折曲部19を位置決めするようにしてもよい。In the above embodiment, after placing the skin 5 on the surface material setting surface 101a of the lower die 101, the holder 109 is moved forward, and the groove 21a of the protrusion 21 is formed at the tip of the holder 109. Although the bending portion 19 was inserted and the bending portion 19 was positioned, on the contrary, the outer skin 5 is placed on the surface material setting surface 101a of the lower mold 101 with the holder 109 advanced, and thereafter,
The bent portion 19 may be positioned by inserting the groove portion 21a of the protruding portion 21 into the tip of the holder 109.
【0031】さらに、上記の実施の形態では、成形型1
05の型閉じ状態でキャビティ111に発泡原料を注入
するクローズド注入法によりインストルメントパネル1
を成形する要領を説明したが、成形型105を型開きし
た状態でキャビティ111に発泡原料を注入するオープ
ン注入法によりインストルメントパネル1を成形する場
合にも適用することができるものである。Further, in the above embodiment, the molding die 1 is used.
Instrument panel 1 by the closed injection method in which the foaming raw material is injected into cavity 111 in the mold closed state of 05.
However, the present invention can also be applied to the case where the instrument panel 1 is molded by the open pouring method in which the foaming raw material is injected into the cavity 111 with the molding die 105 opened.
【0032】また、上記の実施の形態では、表皮5が単
層である場合を示したが、ソリッドの表皮表面層と該表
皮表面層の裏面に一体成形した軟質フォーム層とからな
る多層構造の表皮であってもよい。Further, although the case where the skin 5 is a single layer is shown in the above-mentioned embodiment, a multi-layer structure having a solid skin surface layer and a soft foam layer integrally molded on the back surface of the skin surface layer is adopted. It may be epidermis.
【0033】[0033]
【発明の効果】以上説明したように、請求項1に係る発
明によれば、表皮周縁に表皮裏面側へ突出して表皮表面
側が芯材の起立壁内周面に当接する折曲部を形成し、上
記折曲部端縁に折曲部の肉厚と同等の突出長さ及び突出
厚さを有し先端が上記起立壁内周面に当接する突出部を
形成し、上記突出部の表皮一体発泡成形品表面側に表皮
一体発泡成形品の成形時に上記折曲部を保持する保持具
が挿入される溝部を形成した。したがって、表皮の折曲
部を発泡圧の作用で芯材の起立壁側に容易に撓ませて、
発泡原料が漏れないようにシール性を向上させることが
できるとともに、成形後に表皮と芯材との間に隙間が生
じないようにして外観見栄えを向上させることができ
る。As described above, according to the first aspect of the invention, a bent portion is formed on the peripheral edge of the skin so as to project to the back surface side of the skin and the front surface side of the skin contacts the inner peripheral surface of the standing wall of the core material. Forming a protrusion on the edge of the bent portion that has a protrusion length and a protrusion thickness equivalent to the wall thickness of the bent portion, the tip of which is in contact with the inner circumferential surface of the standing wall, On the surface side of the foamed molded product, a groove portion into which a holder for holding the bent portion is inserted when the skin-integrated foamed molded product is molded is formed. Therefore, the bent portion of the skin can be easily bent to the standing wall side of the core material by the action of foaming pressure,
It is possible to improve the sealing property so that the foaming raw material does not leak, and it is possible to improve the appearance by preventing a gap from being formed between the skin and the core material after molding.
【0034】請求項2に係る発明方法によれば、保持具
を表皮に対して出入れする簡単な操作で、請求項1に係
る発明の作用効果を奏する表皮一体発泡成形品を得るこ
とができる。According to the method of the second aspect of the present invention, it is possible to obtain the foam-integrated body with integrated skin having the effect of the invention of the first aspect by a simple operation of putting the holder in and out of the outer skin. .
【図1】実施の形態に係る表皮一体発泡成形品としての
インストルメントパネルの運転席側を示す斜視図であ
る。FIG. 1 is a perspective view showing a driver seat side of an instrument panel as a skin-integrated foam-molded product according to an embodiment.
【図2】(a)は実施の形態において表皮周縁の折曲部
に形成した突出部を拡大して示す断面図、(b)は従来
例において表皮周縁の折曲部に形成した突出部を拡大し
て示す断面図である。FIG. 2A is an enlarged cross-sectional view showing a projecting portion formed on a bent portion of a skin edge in the embodiment, and FIG. 2B shows a projecting portion formed on a bent portion of a skin edge in a conventional example. It is sectional drawing which expands and shows.
【図3】実施の形態において表皮を下型にセットした状
態を示す成形工程図である。FIG. 3 is a molding process diagram showing a state in which the epidermis is set in a lower mold in the embodiment.
【図4】実施の形態において芯材をセットした上型が下
降して型閉じ状態に移行する直前を示す成形工程図であ
る。FIG. 4 is a molding process diagram showing a state immediately before the upper mold set with the core material descends and shifts to a mold closed state in the embodiment.
【図5】実施の形態において型閉じ状態を示す成形工程
図である。FIG. 5 is a molding process diagram showing a mold closed state in the embodiment.
【図6】実施の形態においてインストルメントパネルが
成形された状態を示す成形工程図である。FIG. 6 is a forming process diagram showing a state where the instrument panel is formed in the embodiment.
1 インストルメントパネル(表皮一体発
泡成形品)
3 芯材
3c 発泡層収容凹部
5 表皮
7 発泡層
17 起立壁
19 折曲部
21 突出部
21a 溝部
101 下型
103 上型
105 成形型
109 保持具
111 キャビティ
L2 突出部の突出長さ
T1 折曲部の肉厚
T3 突出部の突出厚さDESCRIPTION OF SYMBOLS 1 Instrument panel (foam-molded product integrated with skin) 3 Core material 3c Foam layer accommodating recess 5 Skin 7 Foam layer 17 Standing wall 19 Bent portion 21 Projection 21a Groove 101 Lower die 103 Upper die 105 Mold 109 Retainer 111 Cavity L2 protrusion length T1 protrusion thickness T3 protrusion protrusion thickness
───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3D044 BA11 BB01 BC03 BC30 4F100 BA03 BA10A BA10B DB07B DD05A DJ01C EH312 EJ022 GB33 JL00 4F204 AD08 AD23 AG03 AG20 AG21 AH25 EA01 EB01 EB13 EF05 EF27 EL25 EL26 ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 3D044 BA11 BB01 BC03 BC30 4F100 BA03 BA10A BA10B DB07B DD05A DJ01C EH312 EJ022 GB33 JL00 4F204 AD08 AD23 AG03 AG20 AG21 AH25 EA01 EB01 EB13 EF05 EF27 EL25 EL26
Claims (2)
れた表皮一体発泡成形品であって、 上記芯材には、表皮形成領域に対応して発泡層収容凹部
を構成する起立壁が形成され、 上記表皮周縁には、表皮裏面側へ突出して表皮表面側が
上記起立壁内周面に当接する折曲部が形成され、 上記折曲部端縁には、該折曲部の肉厚と同等の突出長さ
及び突出厚さを有し先端が上記起立壁内周面に当接する
突出部が形成され、 上記突出部の表皮一体発泡成形品表面側には、表皮一体
発泡成形品の成形時に上記折曲部を保持する保持具が挿
入される溝部が形成されていることを特徴とする表皮一
体発泡成形品。1. A skin-integrated foam-molded article in which a foam layer is integrally molded between a core material and a skin, wherein the core material has a standing layer that forms a foam layer accommodating recess corresponding to a skin formation region. A wall is formed, a bent portion is formed on the peripheral edge of the skin so as to project toward the back surface side of the skin, and the front surface side of the skin contacts the inner circumferential surface of the standing wall. A protrusion having a protrusion length and a protrusion thickness equal to the wall thickness, the tip of which is in contact with the inner peripheral surface of the upright wall, is formed. A skin-integrated foam-molded article, characterized in that a groove into which a holder for holding the bent portion is inserted is formed when the article is molded.
れた表皮一体発泡成形品の成形方法であって、 表皮周縁に表皮裏面側へ突出して形成された折曲部が上
型側に突出するように表皮を下型に載置し、上記折曲部
端縁に該折曲部の肉厚と同等の突出長さ及び突出厚さを
有して形成された突出部の表皮一体発泡成形品表面側に
形成された溝部を保持具に挿入して上記折曲部を保持し
て位置決めすることにより表皮を下型にセットするとと
もに、芯材の起立壁が上記表皮の折曲部に対応するよう
に上記芯材を上型にセットし、 次いで、上記上型と下型とにより成形型を型閉じして上
記表皮の突出部先端を上記芯材の起立壁内周面に当接さ
せ、 その後、型開き状態で又は型閉じ後にキャビティに注入
された発泡原料の発泡途中で上記保持具を上記突出部の
溝部から抜き、上記発泡原料のさらなる発泡膨張による
発泡圧により上記折曲部の表皮表面側を上記起立壁内周
面に当接させるとともに、発泡層が上記起立壁により表
皮成形領域に対応して構成された発泡層収容凹部に収容
されて上記芯材と表皮との間に一体成形された表皮一体
発泡成形品を得ることを特徴とする表皮一体発泡成形品
の成形方法。2. A method for molding a foam-in-one-in-situ molded product in which a foam layer is integrally molded between a core material and a skin, wherein a bent portion formed on the periphery of the skin and protruding toward the back surface of the skin is an upper mold. The outer skin is placed on the lower mold so as to project to the side, and the outer skin of the protruding portion formed at the end edge of the bent portion with a protruding length and a protruding thickness equivalent to the wall thickness of the bent portion. The outer skin is set in the lower mold by inserting the groove formed on the surface side of the integrated foam molded product into the holder to position and hold the bent portion, and the standing wall of the core material bends the skin. Set the core material to the upper mold so as to correspond to the portion, and then close the molding die by the upper mold and the lower mold to make the tip of the protruding portion of the skin on the inner peripheral surface of the standing wall of the core material. Then, in the mold open state or after the mold is closed, the above holder is held in the middle of foaming of the foam raw material injected into the cavity. Withdrawing from the groove of the protruding portion, the outer skin surface side of the bent portion is brought into contact with the inner peripheral surface of the standing wall by the foaming pressure due to further foaming expansion of the foaming raw material, and the foamed layer becomes the skin forming region by the standing wall. A method for molding a skin-integrated foam-molded product, comprising: obtaining a skin-integrated foam-molded product which is housed in a foam layer-containing recess formed correspondingly and integrally molded between the core material and the skin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001185937A JP2003001740A (en) | 2001-06-20 | 2001-06-20 | Skin-integrated foam molded article and method for molding it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001185937A JP2003001740A (en) | 2001-06-20 | 2001-06-20 | Skin-integrated foam molded article and method for molding it |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2003001740A true JP2003001740A (en) | 2003-01-08 |
Family
ID=19025441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001185937A Pending JP2003001740A (en) | 2001-06-20 | 2001-06-20 | Skin-integrated foam molded article and method for molding it |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2003001740A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1757446A1 (en) | 2005-08-23 | 2007-02-28 | Recticel | Panel-like laminate and a skin for manufacturing such laminate |
JP2015058607A (en) * | 2013-09-18 | 2015-03-30 | 株式会社豊田自動織機 | Foam molding manufacturing method and foam molding |
CN106945226A (en) * | 2015-11-05 | 2017-07-14 | 福特汽车公司 | Punch line station apparatus and the apparatus and method for manufacturing punch line station apparatus |
-
2001
- 2001-06-20 JP JP2001185937A patent/JP2003001740A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1757446A1 (en) | 2005-08-23 | 2007-02-28 | Recticel | Panel-like laminate and a skin for manufacturing such laminate |
JP2009505855A (en) * | 2005-08-23 | 2009-02-12 | レクティセル | Panel-like laminate and skin for producing the laminate |
JP2015058607A (en) * | 2013-09-18 | 2015-03-30 | 株式会社豊田自動織機 | Foam molding manufacturing method and foam molding |
CN106945226A (en) * | 2015-11-05 | 2017-07-14 | 福特汽车公司 | Punch line station apparatus and the apparatus and method for manufacturing punch line station apparatus |
CN106945226B (en) * | 2015-11-05 | 2021-04-27 | 福特汽车公司 | Press line station device and method for producing a press line station device |
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