JPH03271083A - Sandwich molding - Google Patents
Sandwich moldingInfo
- Publication number
- JPH03271083A JPH03271083A JP2072490A JP7249090A JPH03271083A JP H03271083 A JPH03271083 A JP H03271083A JP 2072490 A JP2072490 A JP 2072490A JP 7249090 A JP7249090 A JP 7249090A JP H03271083 A JPH03271083 A JP H03271083A
- Authority
- JP
- Japan
- Prior art keywords
- core layer
- plane part
- joining plane
- hard material
- soft
- 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
- 238000000465 moulding Methods 0.000 title description 6
- 239000012792 core layer Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000010410 layer Substances 0.000 claims abstract description 21
- 230000013011 mating Effects 0.000 claims description 37
- 239000007779 soft material Substances 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 3
- 210000003491 skin Anatomy 0.000 description 16
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は５ 自動車用マッドガードのごとく、車体等に
取付ける合わせ面部分を有するサンドイッチ成形品に関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a sandwich molded product having a mating surface portion to be attached to a vehicle body or the like, such as a mudguard for an automobile.
各種プラスチック成形品には、これを他の物体である取
付相手材に面接触させて取付けるものがある。モして５
この面接触させる部分が合わせ面となる０例えば、自
動車用マッドガードについては、取付相手材である車体
に対して面接触させる部分が、車体の部分である。BACKGROUND OF THE INVENTION Some of various plastic molded products are attached to other objects by making surface contact with them. 5
For example, in the case of an automobile mudguard, the part that is brought into surface contact with the vehicle body, which is the mating member, is the part of the vehicle body.
即ち、第１Ｏ図及び第１１図に示すごとく、自動車の車
輪後方の車体部分に取り付けるマツドガド９は１本体９
１とその下方に設けた泥よけ部分の下片９２と１両者の
間より分岐した取付部９３とからなる。ここに１本体９
１と取付部９３とは 取付孔９］１．９３１及びボルト
５により。That is, as shown in FIG. 1O and FIG.
1, a lower piece 92 of a mudguard portion provided below the 1, and a mounting portion 93 branched from between the 1 and the 1. 1 body here 9
1 and the mounting part 93 are the mounting hole 9 ] 1.931 and the bolt 5.
車体６に固定する部分である。This is a part that is fixed to the vehicle body 6.
そして、該本体９１と取付部９３とが車体６に面接触す
る合わせ面部分９１０，９３０は、この部分が車体６に
当接したとき、容易に弾性変形するよう構成しておく必
要がある。The mating surface portions 910 and 930 where the main body 91 and the attachment portion 93 come into surface contact with the vehicle body 6 need to be configured so that they can easily be elastically deformed when these portions come into contact with the vehicle body 6.
そのため、マッドガード９は１本体９１と取付部９３と
は比較的硬い部分となし、その他の部分は比較的軟質と
しておくことが望まれている。Therefore, it is desired that the main body 91 and the mounting portion 93 of the mudguard 9 be relatively hard parts, and the other parts be relatively soft.
そこで、従来５上記マツドガード９を、第１Ｏ図に示す
ごとく、サンドインチＦＩＸ形品とすることが提案され
ている。このものは、硬質のコア層８と、その外側を被
覆した軟質の表皮層７とからな上記サンドイッチ成形品
の製造方法としては。Therefore, it has been proposed in the past that the mound guard 9 be made into a sand inch FIX type product as shown in FIG. 1O. This is a method for producing the sandwich molded product described above, which comprises a hard core layer 8 and a soft skin layer 7 covering the outside thereof.
例えば特公昭５２−１１３３６号公報に示される技術が
ある。For example, there is a technique disclosed in Japanese Patent Publication No. 52-11336.
上記公報掲載の技術は、射出ノズルで成形型のキャビテ
ィ内に、まず非多泡状の表皮材料を射出し、更に推進剤
（発泡剤）で多泡状になる内核材料を射出して、非多泡
状の表皮材料と多泡状の内核材料からなるサンドイッチ
合成樹脂成形品を製造する方法である。The technology published in the above publication first injects a non-cellular skin material into the mold cavity with an injection nozzle, and then injects an inner core material that becomes foamy using a propellant (foaming agent). This is a method for manufacturing a sandwich synthetic resin molded product consisting of a foamed skin material and a foamed inner core material.
この方法を利用すれば、内部に硬いコア層を有し、その
表面に軟らかい表皮層を被覆したサンドインチ成形品を
製造することができる。By using this method, it is possible to produce a sand-inch molded product that has a hard core layer inside and a soft skin layer on the surface.
ところで 前記従来のサンドインチ成形によるマシドガ
ード９においては、前記第１０図に示すごとく１本体９
１と取付部９３の内部にコア層８からなる硬質部分を形
成させることができる。By the way, in the conventional masido guard 9 formed by sandwich inch molding, as shown in FIG.
A hard portion made of the core layer 8 can be formed inside the mounting portion 1 and the mounting portion 93 .
しかし、その合わせ面部分９１０．９３０においてもコ
ア層８が内包されて硬質部分を形成してしまう。その結
果２例えば上記取付部９３を車体６に取り付けた場合、
第１１図に示すごとく、その合わせ面部分９１０．９３
０と取付相手材である車体６との間が、全体にわたりな
しみにくくなり、特に１曲面形状を有する部分に取り付
ける場合は５両者を完全に一致させることは難しく、そ
の間に隙間９０を生ずる。However, the core layer 8 is also included in the mating surface portions 910 and 930, forming a hard portion. As a result 2, for example, when the mounting portion 93 is attached to the vehicle body 6,
As shown in FIG. 11, the mating surface portion 910.93
The space between 0 and the vehicle body 6, which is the attachment partner material, becomes difficult to seep throughout, and especially when it is attached to a part having a single curved surface shape, it is difficult to make both 5 perfectly match, and a gap 90 is created between them.
一方、上記合わせ面部分９１０，９３０を柔軟性である
表皮層のみで構成すると、ボルト取付等に必要な剛性が
得られない。On the other hand, if the mating surface portions 910, 930 are composed only of a flexible skin layer, the rigidity required for bolt attachment etc. cannot be obtained.
即ち、従来のサンドインチ成形においては、上記のごと
く取付相手材と面接触させる合わせ面部分が適当の剛性
と柔軟性とを有する。サンドイッチ成形品を得ることは
困難である。That is, in conventional sand inch molding, the mating surface portion that is brought into surface contact with the mating material has appropriate rigidity and flexibility as described above. Sandwich moldings are difficult to obtain.
本発明は、かかる従来の問題点に鑑み、サンドインチ成
形品について種々の検討を重ねた結果なされたもので、
上記合わせ面部分が取付相手＋Ａの開面形状になしみ易
い剛性と柔軟性とを有するサンドインチ成形品を提供し
ようとするものである。The present invention was made as a result of various studies regarding sand inch molded products in view of the conventional problems.
It is an object of the present invention to provide a sandwich molded product in which the above-mentioned mating surface portion has such rigidity and flexibility as to be easily adapted to the open surface shape of the mounting partner +A.
本発明は、取付相手材に面接触させるための合わせ面部
分を有するサンドイッチ成形品において上記合わせ面部
分はその内部に形威したクシ状のコア層と、その外部を
被覆する表皮層とにより構成したことを特徴とするサン
ドインチ成形品にある。The present invention provides a sandwich molded product having a mating surface portion for surface contact with a mating material, in which the mating surface portion is composed of a comb-shaped core layer formed inside the core layer and a skin layer covering the outside thereof. It is a sandwich molded product that is characterized by the following.
本発明において最も注目すべきことは、上記合わせ面部
分をクシ（櫛）状の硬質のコア層となしその表面を欽質
の表皮層で被覆したことである。What is most noteworthy about the present invention is that the above-mentioned mating surface portion is formed into a comb-shaped hard core layer, and the surface thereof is covered with a resinous skin layer.
上記クシ状のコア層とは、第１図、第９図に示すごとく
１間隔を置いてコア層を突出形成することをいう。なお
、上記合わせ面部分以外の部分は通常のサンドインチ構
造とすることもできる。The above-mentioned comb-shaped core layer means that the core layer is formed protrudingly at one interval as shown in FIGS. 1 and 9. Note that the portions other than the above-mentioned mating surface portions may have a normal sandwich structure.
また、上記コア層を構成する硬質材としては。Further, as the hard material constituting the core layer.
ＡＢＳ樹脂、タルク等のフィラー入りのポリプロピレン
樹脂、などがある、また、これら樹脂にグラスファイバ
ー等を混入させた樹脂などもある。There are ABS resins, polypropylene resins containing fillers such as talc, and there are also resins in which glass fibers and the like are mixed into these resins.
また１表皮層を構成する軟質材としては、ポリプロピレ
ンにＥＰＤＭをブレンドした樹脂、 ＥＶＡ樹脂、５
ＩＥＢＳ （スチレン・エチレン・ブタジェン・スチレ
ン）樹脂、５ＢＳ（スチレン・ブタジェン・スチレン〉
樹脂などがある。In addition, the soft materials constituting one skin layer include a resin blended with polypropylene and EPDM, EVA resin, 5
IEBS (styrene, ethylene, butadiene, styrene) resin, 5BS (styrene, butadiene, styrene)
There are resins, etc.
上記サンドイッチ成形品を製造するに当たっては、コア
層を形威さセない部分に流動抵抗部を設けた成形型を用
い、該成形型内にプラスチック成形品の表皮層を形成す
るための軟質材を射出する。In manufacturing the above sandwich molded product, a mold is used that has a flow resistance part in the part that does not affect the shape of the core layer, and a soft material is used to form the skin layer of the plastic molded product in the mold. eject.
そして、その後該軟質材の中に硬質相を注入する方法が
ある。これにより、上記流動抵抗部には表皮層のみが流
入し５ コア層は流入させないようにすることができる
。そのため、クシ状のコア層を形！戊できる。There is a method of subsequently injecting a hard phase into the soft material. As a result, only the skin layer can flow into the flow resistance section, and the core layer can not flow into the flow resistance section. Therefore, the comb-shaped core layer is shaped! I can do it.
なお５上記軟質材の注入量は、上記表皮層を成形させる
に必要な量であり、キャビティ内の全容量より少ない量
である。また、コア層を形成する硬質材の注入時には８
表皮層を形成する軟質材を引き続き射出しても良いし、
またこれを中止しても良い。Note that the amount of the soft material injected is the amount necessary to mold the skin layer, and is smaller than the total volume within the cavity. In addition, when injecting the hard material that forms the core layer, 8
You may continue to inject the soft material that forms the skin layer, or
You may also cancel this.
本発明のサンドインチ成形品においては、その合わせ面
部分に、クシ状のコア層が硬質材で構成され、またコア
層の表面が軟質材の表皮層によって覆われている。また
、上記クシ状のコア層とコア層との間には、軟質の表皮
層が存在している。In the sand inch molded product of the present invention, a comb-shaped core layer is formed of a hard material on the mating surface portion, and the surface of the core layer is covered with a skin layer of a soft material. Moreover, a soft skin layer exists between the comb-shaped core layers.
そのため、上記合わせ面部分は、クシ状コア層と表皮層
とによって適度の剛性と柔軟性とを有することとなる。Therefore, the mating surface portion has appropriate rigidity and flexibility due to the comb-shaped core layer and the skin layer.
それ故、該合わせ面部分は、取付相手材の曲面形状にな
じみ易く、また他物体に締付ける際の強度も有する。し
たがって２上記合わせ面部分と取付相手材との間には隙
間を生ずることがない。Therefore, the mating surface portion easily conforms to the curved shape of the object to be attached, and also has strength when fastened to another object. Therefore, no gap is created between the mating surface portion and the mating member.
また、上記合わせ面部分にはクシ状のコア層と表皮層と
があるため、締付は具に対する横方向の動きが、該軟質
材によって吸収され、硬質材に直接伝わらない、それ故
、硬質材の部分に無理な負荷、特に衝撃的な負荷がかか
らず、硬質材が破損することを防止できる。In addition, since the above-mentioned mating surface part has a comb-shaped core layer and a skin layer, the lateral movement against the tool is absorbed by the soft material and is not directly transmitted to the hard material. No unreasonable load, especially impact load, is applied to the material, and damage to the hard material can be prevented.
また、上記コア層の上下層も軟質材であるためその弾性
力によるバネ効果があり、締付は具の緩みを防止できる
。Furthermore, since the upper and lower layers of the core layer are also made of soft materials, their elastic force provides a spring effect, and tightening can prevent the tool from loosening.
したがって１本発明によれば１合わせ面部分が取付相手
材になしみ易い剛性と柔軟性とを有するサンドインチ成
形品を提供することができる。Therefore, according to the present invention, it is possible to provide a sandwich molded product in which the mating surface portion has the rigidity and flexibility to easily fit into the mating material.
本発明にかかるサンドインチ成形品を、自動車用マッド
ガードに適用した例につき５第１図〜第９図を用いて説
明する。An example in which the sand inch molded product according to the present invention is applied to a mudguard for an automobile will be explained using FIGS. 1 to 9.
該マントガード２は７第１図〜第４図に示すごとく、取
付相手材である車体取付部に面接触させる合わせ面部分
２１を有する。該合わせ面部分２１は、その内部に形成
したクシ状のコア層２１１と、その外部を被覆した表皮
１２１２とにより構成する。また、第２図に示すごとく
、該マッドガード２の裏面側には、上記クシ状のコア！
２１１を有する凸状部と、該凸状部の間に形成された凹
状切欠部２２０とを有する。As shown in FIGS. 1 to 4, the mantle guard 2 has a mating surface portion 21 that is brought into surface contact with a vehicle body mounting portion that is a mating member. The mating surface portion 21 is composed of a comb-shaped core layer 211 formed inside the mating surface portion 21 and a skin 1212 covering the outside thereof. Moreover, as shown in FIG. 2, the comb-shaped core is provided on the back side of the mudguard 2!
211, and a concave notch 220 formed between the convex portions.
上記マッドガード２は、第３図及び第４図に示すごとく
、弧状表面を有する車体（取付相手材）に面接触させる
ための合わせ面部分２１と、その片面に立設した壁部２
２及び取付片２３と、下片２７とを有する。なお、符号
２６は、外板の端部を挿入する凹所である。As shown in FIGS. 3 and 4, the mudguard 2 includes a mating surface portion 21 for surface contact with the vehicle body (mounting material) having an arcuate surface, and a wall portion 2 erected on one side of the mating surface portion 21.
2, a mounting piece 23, and a lower piece 27. Note that the reference numeral 26 is a recess into which the end of the outer plate is inserted.
上記取付片２３には、２つの貫通孔２３１，２３２を有
する。また、下片２７の上方には突出部２４を有すると
共に取付は片２５を有する。該取付は片２５は貫通孔２
５１を有する。また、上記貫通孔２３１，２３２，２５
１は ボルトナツトによって、車体に締付けられる。The mounting piece 23 has two through holes 231 and 232. Further, above the lower piece 27, there is a protrusion 24 and a mounting piece 25 is provided. For this installation, piece 25 is through hole 2
It has 51. In addition, the through holes 231, 232, 25
1 is tightened to the vehicle body with bolts and nuts.
次に、上記マッドガード２の製造につき第５図〜第９図
を用いて説明する。Next, manufacturing of the mudguard 2 will be explained using FIGS. 5 to 9.
即ち、第５図に示すごとく、成形製の下型３はキャビテ
ィ３１の入口部分にコア層を設けないための流動抵抗部
３２と樹脂流路３３とを有する。That is, as shown in FIG. 5, the lower mold 3 made of molding has a flow resistance portion 32 and a resin flow path 33 so that no core layer is provided at the entrance portion of the cavity 31.
また５該下型３の上には、第８図に示すごとく下方に凹
状キャビティ３０１を有する上型３０を被冠する。5. On top of the lower mold 3, an upper mold 30 having a concave cavity 301 on the lower side is placed, as shown in FIG.
次に、上記マッドガードをサンドインチ成形するに当た
っては、常法により、第６図に示すごとく１表皮層とす
るための軟質材１２をキャビティ３１内に射出する０次
いで、第６図及び第７図に示すごと＜、該軟質材１２内
にコア層とするための硬質材１１を注入する。上記注入
においては。Next, when sand-inch molding the mudguard, a soft material 12 is injected into the cavity 31 to form one skin layer as shown in FIG. 6 by a conventional method. As shown in <, the hard material 11 to be used as a core layer is injected into the soft material 12. In the above injection.
第６図に示すごとく、まず軟質材１２が流動抵抗部３２
の周囲を取り囲み、更に前方へ進む、そして、第７図に
示すごとく、更に続く硬質材１１の注入により、軟質材
１２は更に前方に押され 該軟質材１２中においては、
硬質材１１が前方に進む。As shown in FIG. 6, first, the soft material 12 is
As shown in FIG. 7, as shown in FIG.
The hard material 11 moves forward.
ここで注目すべきことは、第８図に示すごとく。What should be noted here is as shown in Figure 8.
」二記流動抵抗部３２と上型３０との間の軟質材１２は
比較的早く冷却固化し、該軟質材Ｉ２はそのまま残こと
である。そして、流動抵抗部３２．３２の間の軟質材１
２とそれより前方の軟質材１２とは硬質材１１によって
先方へ押しやられた状態となり、流動抵抗部３２．３２
の間にクシ状のコア層２１１が形成される。2. The soft material 12 between the flow resistance part 32 and the upper mold 30 is cooled and solidified relatively quickly, and the soft material I2 remains as it is. And the soft material 1 between the flow resistance parts 32 and 32
2 and the soft material 12 in front of it are pushed forward by the hard material 11, and the flow resistance part 32, 32
A comb-shaped core layer 211 is formed between them.
かかる流動状態を生ずる理由は、第８図に示すごとく、
上記流動抵抗部３２の上面と上型３０との間隔Ｓは、樹
脂流路３３の下面と上型３０との間隔りに比して小さい
ため、該間隔Ｓ間の軟質材１２は早く冷却し、この部分
には硬質材１１が侵入してこないことによる。そして、
上記間隔りの部分においては、硬質材１１が侵入してき
たときも、まだ軟質材１２が冷却固化していないために
。The reason for this fluid state is as shown in Figure 8.
Since the distance S between the upper surface of the flow resistance section 32 and the upper mold 30 is smaller than the distance between the lower surface of the resin channel 33 and the upper mold 30, the soft material 12 between the distance S is cooled quickly. This is because the hard material 11 does not enter this portion. and,
This is because the soft material 12 has not yet cooled and solidified in the above-mentioned space even when the hard material 11 enters.
該硬質材１１は、第７図に示すごとく、前方へ進むこと
ができる。それ故、硬質材１１が、クシ状に充填される
のである。The hard material 11 can move forward as shown in FIG. Therefore, the hard material 11 is filled in a comb shape.
なお、上記のごとく、キャビティ３１内が軟質材１２と
その内部の硬質材１１とによって充填された後、これら
は冷却固化する。その後、キャビティ３１内から出され
たマッドガード２は前記第１図〜第４図及び第９図に示
したものとなる。Note that, as described above, after the inside of the cavity 31 is filled with the soft material 12 and the hard material 11 therein, these are cooled and solidified. Thereafter, the mudguard 2 taken out from the cavity 31 becomes as shown in FIGS. 1 to 4 and 9.
なお、前記マッドガード２において、硬質材ｌｌとして
はフィラー人すポリプロピレン樹脂を。In addition, in the mudguard 2, the hard material is a filler polypropylene resin.
軟質材１２としてはポリプロピレンにＥＰＤＭをブレン
ドした樹脂を用いた。As the soft material 12, a resin obtained by blending EPDM with polypropylene was used.
ところで、上記マッドガード２は、第９図に示すごとく
、その合わせ面部分２１が硬質材１１によって形成され
たクシ状のコア層２１１と、その表面を覆う軟質材１２
による表皮層２１２とにより構成されている。そのため
、該合わせ面部分２１は、適度の剛性と柔軟性とを有す
る。それ故。By the way, as shown in FIG. 9, the mudguard 2 has a comb-shaped core layer 211 whose mating surface portion 21 is made of a hard material 11, and a soft material 12 covering the surface of the comb-shaped core layer 211.
The epidermal layer 212 is composed of Therefore, the mating surface portion 21 has appropriate rigidity and flexibility. Therefore.
該合わせ面部分２１と車体６の曲面形状は、なしみ良く
面接触し５両者間に隙間９０（第１１図参照）が生ずる
ことがない。The curved shapes of the mating surface portion 21 and the vehicle body 6 make smooth surface contact, and no gap 90 (see FIG. 11) is created between them.
また、上記合わせ面部分２１の表面部分は軟質材１２で
あるため５弾力性を有する。それ故、マッドガード２自
体の振動も軟質材１２によって吸収される。Further, since the surface portion of the mating surface portion 21 is made of the soft material 12, it has elasticity of 5. Therefore, vibrations of the mudguard 2 itself are also absorbed by the soft material 12.
第１図〜第９図は本発明の実施例を示し、第１図はマッ
ドガードの合わせ部分の平面図、第２図は第１図のＡ−
Ａ線矢視断面図、第３図及び第４図はマッドガードの下
端部及び上端部から見た斜視図、第５図〜第９図は成形
過程を示す説明図で。
第５図は下型の要部斜視図、第６図及び第７図は樹脂流
れの説明図、第８図は成形型の断面図、第９図は成形品
の要部斜視図、第１Ｏ図及び第１１図は従来例を示し、
第１０図はマッドガードの断面図、第１１図はその取付
状態を示す側面図である。
・・硬質材
・・軟質材。
・マッドガード。
合わせ面部分。
コア層。
表皮層。
下型。
上型。
キャビティ。
流動抵抗部。
１１ ・
１２ ・
２ ・ ・
２１、、。
２１１、、。
２１２、、。
３１、。
３０、、。
３ ｌ ・ ・ ・
３２ ・ ・ ・
出
代
願人
豊田
埋入1 to 9 show embodiments of the present invention, FIG. 1 is a plan view of the mating part of the mudguard, and FIG. 2 is a
A sectional view taken along line A, FIGS. 3 and 4 are perspective views as seen from the lower end and upper end of the mudguard, and FIGS. 5 to 9 are explanatory views showing the forming process. Figure 5 is a perspective view of the main parts of the lower mold, Figures 6 and 7 are explanatory diagrams of resin flow, Figure 8 is a sectional view of the mold, Figure 9 is a perspective view of the main parts of the molded product, and Figure 9 is a perspective view of the main parts of the molded product. FIG. 11 shows a conventional example,
FIG. 10 is a sectional view of the mudguard, and FIG. 11 is a side view showing its installed state.・Hard material・Soft material.・Mud guard. mating surface part. core layer. epidermal layer. Lower mold. Upper mold. cavity. Flow resistance section. 11 ・ 12 ・ 2 ・ ・ 21,,. 211,. 212,. 31. 30,. 3 l ・ ・ ・ 32 ・ ・ ・ Applicant Toyoda Buri
Claims (1)
サンドイッチ成形品において、上記合わせ面部分はその
内部に形成したクシ状のコア層と、その外部を被覆する
表皮層とにより構成したことを特徴とするサンドイッチ
成形品。A sandwich molded product having a mating surface portion for surface contact with a mating material, characterized in that the mating surface portion is composed of a comb-shaped core layer formed inside the core layer and a skin layer covering the outside thereof. Sandwich molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072490A JP2874944B2 (en) | 1990-03-22 | 1990-03-22 | Sandwich molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072490A JP2874944B2 (en) | 1990-03-22 | 1990-03-22 | Sandwich molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03271083A true JPH03271083A (en) | 1991-12-03 |
| JP2874944B2 JP2874944B2 (en) | 1999-03-24 |
Family
ID=13490818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2072490A Expired - Fee Related JP2874944B2 (en) | 1990-03-22 | 1990-03-22 | Sandwich molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2874944B2 (en) |
-
1990
- 1990-03-22 JP JP2072490A patent/JP2874944B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2874944B2 (en) | 1999-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4885121A (en) | Method of making a dual durometer self-locking and sealing plug | |
| JP3303621B2 (en) | Interior material and manufacturing method thereof | |
| KR970025912A (en) | Manufacturing method of synthetic resin bumper for automobile | |
| JPH03271083A (en) | Sandwich molding | |
| US4726558A (en) | Grommet and grommet retaining member | |
| EP1092616A2 (en) | Seat structure for small vehicle such as motorcycle | |
| JPH06312437A (en) | Sandwich molded product having attaching seat and molding thereof | |
| JPH06305343A (en) | Instrument panel core for vehicle and molding method thereof | |
| JP2754556B2 (en) | Glove box and its manufacturing method | |
| EP0846583B1 (en) | Door trim structure and method of forming same | |
| JP2622876B2 (en) | Plastic molding method | |
| JP3033400B2 (en) | Sandwich molded product with rib | |
| JP3158782B2 (en) | Long sandwich molded article and molding method thereof | |
| JP3052386B2 (en) | Automotive exterior resin product and manufacturing method thereof | |
| JP3033410B2 (en) | Manufacturing method of long resin molded products | |
| JP3925115B2 (en) | Car door partition sash structure | |
| JP2518477B2 (en) | Sandwich molding method | |
| JPH05301252A (en) | Method for molding sandwich molded product | |
| JP3079691B2 (en) | Vehicle guard structure and molding method thereof | |
| JPH11286028A (en) | Injection molding with hole and its manufacture | |
| JP3129038B2 (en) | Molding method for sandwich molded products | |
| JPH0386510A (en) | Molding method for sandwich molded product having connecting piece | |
| JP3089721B2 (en) | Mudguard molding method | |
| JPH0739621Y2 (en) | Bonding structure of foam molded products and parts | |
| JPH06270706A (en) | Console upper panel with boot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090114 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100114 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |