JPS6353008B2 - - Google Patents
Info
- Publication number
- JPS6353008B2 JPS6353008B2 JP58175738A JP17573883A JPS6353008B2 JP S6353008 B2 JPS6353008 B2 JP S6353008B2 JP 58175738 A JP58175738 A JP 58175738A JP 17573883 A JP17573883 A JP 17573883A JP S6353008 B2 JPS6353008 B2 JP S6353008B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- resin
- injection
- manufacturing
- mold
- 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.)
- Expired
Links
- 229920005989 resin Polymers 0.000 claims description 45
- 239000011347 resin Substances 0.000 claims description 45
- 238000000465 moulding Methods 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 32
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000001746 injection moulding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14409—Coating profiles or strips by injecting end or corner or intermediate parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14934—Preventing penetration of injected material between insert and adjacent mould wall
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は長尺材の端末部を射出成形型に挿入
し、射出成形により端末樹脂部（エンドキヤツ
プ）を形成するモールデイングの製造方法、特に
車両用として使用されるモールデイングの製造方
法に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a molding manufacturing method in which an end portion of a long material is inserted into an injection mold and a terminal resin portion (end cap) is formed by injection molding. The present invention relates to a method of manufacturing moldings used for vehicles.
第１図は自動車の車体の側面図であり、１は車
体、２，３はウエザーストリツプモールデイン
グ、４はサイドモールデイングである。ウエザー
ストリツプモールデイング２，３、サイドモール
デイング４はいずれも長尺材の切断端末に射出成
形により端末樹脂部を形成して製造されている。
以下ウエザーストリツプモールデイング２を例と
して従来の製造方法を説明する。
FIG. 1 is a side view of a car body, in which 1 is a car body, 2 and 3 are weather strip moldings, and 4 is a side molding. The weather strip moldings 2, 3 and the side moldings 4 are each manufactured by forming a terminal resin part on the cut end of a long material by injection molding.
A conventional manufacturing method will be described below using weather strip molding 2 as an example.
第２図はウエザーストリツプモールデイングの
前部を切断した斜視図であり、金属板５および樹
脂部６を有する長尺材７を所定の長さおよび端末
形状に切断し、切欠８を形成して曲げ加工し、切
断端部に端末樹脂部９を形成したものである。 FIG. 2 is a cutaway perspective view of the front part of the weather strip molding, in which a long material 7 having a metal plate 5 and a resin part 6 is cut to a predetermined length and end shape, and a notch 8 is formed. Then, a terminal resin portion 9 is formed at the cut end by bending.
第３図は長尺材の端末を切断した状態を示す斜
視図である。従来の製造方法は、まずロール成形
により所定形状に成形した金属板５を押出成形型
に供給して、押出成形により樹脂部６を形成した
長尺材７の所定の長さに切断し、切欠８を形成す
るとともに、所定の端末形状とするために、端末
部の上部を切断して切欠１０を形成し、切欠８を
形成した部分を垂直方向に曲げ加工する。 FIG. 3 is a perspective view showing a state in which the end of the elongated material is cut. In the conventional manufacturing method, first, a metal plate 5 formed into a predetermined shape by roll forming is supplied to an extrusion mold, and a long material 7 on which a resin part 6 is formed by extrusion molding is cut into a predetermined length, and a notch is formed. 8, and in order to form a predetermined terminal shape, the upper part of the terminal portion is cut to form a notch 10, and the portion in which the notch 8 is formed is bent in the vertical direction.
第４図は射出成形型の断面図、第５図はそのＡ
−Ａ断面図であり、第３図の長尺材７の端末部を
挿入して射出成形を行い、端末樹脂部９を形成す
るものである。射出成形型はキヤビテイ型１１、
コア型１２および矢印ａ方向に移動するスライド
コア型１３を有し、これらによつて形成されるキ
ヤビテイ１４内に長尺材７の端末部を挿入して型
締めし、ゲート１５から溶融樹脂を射出して長尺
材７の切断端部と一体化するように端末樹脂部９
を形成する。 Figure 4 is a cross-sectional view of the injection mold, and Figure 5 is its A.
-A sectional view, in which the end portion of the elongated material 7 in FIG. 3 is inserted and injection molded to form a terminal resin portion 9. The injection mold is cavity mold 11,
It has a core mold 12 and a slide core mold 13 that moves in the direction of arrow a, and the end portion of the elongated material 7 is inserted into the cavity 14 formed by these, the mold is clamped, and the molten resin is poured from the gate 15. The terminal resin part 9 is injected and integrated with the cut end of the long material 7.
form.
しかしながら、以上のような従来のモールデイ
ングの製造方法においては、長尺材７の成形に押
出成形工程を経ると、樹脂部６の厚みに±0.2mm
程度の誤差、バラツキが生ずることは避けられ
ず、厚みが薄い場合には、射出成形型の当接部１
６を通して逃げ部１７にバリ１８が発生し、手作
業でこのバリ１８を除去しなければならないとと
もに、著しく外観を損うという問題点があつた。 However, in the conventional molding manufacturing method as described above, when the long material 7 is formed through an extrusion molding process, the thickness of the resin part 6 is ±0.2 mm.
It is inevitable that errors and variations in degree will occur, and if the thickness is thin, the contact part 1 of the injection mold
There was a problem in that burrs 18 were generated in the relief portion 17 through the burrs 6, and that the burrs 18 had to be removed manually and that the appearance was significantly impaired.
この発明は以上のような問題点を解消するため
のもので、射出成形型のキヤビテイ内に射出樹脂
の流入に対する絞り部を設けて射出成形を行うこ
とにより、長尺材に誤差、バラツキがある場合で
も、バリが発生しないモールデイングの製造方法
を提供することを目的としている。
This invention is intended to solve the above-mentioned problems. By performing injection molding by providing a constriction section for the inflow of injected resin in the cavity of the injection mold, there are errors and variations in the length of the long material. It is an object of the present invention to provide a method for manufacturing moldings that does not generate burrs even in the case of a molding.
この発明は、所定の長さおよび端末形状に切断
された長尺材の端末部を射出成形型に挿入し、射
出成形により端末樹脂部を形成する方法におい
て、挿入された長尺材の切断端部付近のキヤビテ
イ内に射出樹脂の流入に対する絞り部を形成し、
絞り部を通して射出樹脂をキヤビテイ内に充填す
るようにしたことを特徴とするモールデイングの
製造方法である。
This invention relates to a method of inserting an end portion of a long material cut into a predetermined length and end shape into an injection mold and forming a terminal resin portion by injection molding. A constriction part for the inflow of the injected resin is formed in the cavity near the part,
This is a molding manufacturing method characterized in that the injection resin is filled into the cavity through the constriction part.
以下、この発明の実施例を図面に基づいて説明
する。第６図はこの発明の一実施例における射出
成形型の断面図、第７図はそのＢ−Ｂ断面図、第
８図は製造されたウエザーストリツプモールデイ
ングの前部を切断した斜視図、第９図は射出成形
時の圧力および射出量を示すグラフであり、第１
図ないし第５図と同一符号は同一または相当部分
を示す。１９はキヤビテイ１４内の長尺材７の切
断端部付近に設けられた仕切部材で、ゲート１５
に対向するようにスライドコア型１３から突出
し、長尺材７の切断端部付近に射出樹脂の流入に
対する絞り部２０を形成している。
Embodiments of the present invention will be described below based on the drawings. FIG. 6 is a sectional view of an injection molding die according to an embodiment of the present invention, FIG. 7 is a BB sectional view thereof, and FIG. 8 is a perspective view of the front section of the manufactured weather strip molding. , FIG. 9 is a graph showing the pressure and injection amount during injection molding.
The same reference numerals as those in the figures to FIG. 5 indicate the same or corresponding parts. 19 is a partition member provided near the cut end of the long material 7 in the cavity 14;
It protrudes from the slide core mold 13 so as to face the long material 7, and forms a constriction part 20 near the cut end of the elongated material 7 for the inflow of the injected resin.
製造方法はまず従来法と同様に、ロール成形に
より所定形状に成形した金属板５を押出成形型に
供給して、押出成形により樹脂部６を形成した長
尺材７を所定の長さに切断し、切欠８を形成する
とともに、所定の端末形状とするために、端末部
の上部を切断して切欠１０を形成し、切欠８を形
成した部分を曲げ加工して、第３図の状態に加工
する。 In the manufacturing method, as in the conventional method, first, a metal plate 5 formed into a predetermined shape by roll forming is supplied to an extrusion mold, and a long material 7 with a resin part 6 formed by extrusion molding is cut into a predetermined length. Then, in order to form a notch 8 and a predetermined terminal shape, the upper part of the terminal part is cut to form a notch 10, and the part where the notch 8 is formed is bent to form the state shown in Fig. 3. Process.
そして第６図および第７図に示すように、長尺
材７の端末部を射出成形型に挿入して型締めし、
ゲート１５から溶融樹脂をキヤビテイ１４内に射
出して、第８図に示すように端末樹脂部９を長尺
材７の切断端部と一体化するように形成する。 Then, as shown in FIGS. 6 and 7, the end portion of the long material 7 is inserted into an injection mold and the mold is clamped.
Molten resin is injected into the cavity 14 from the gate 15 to form the terminal resin part 9 so as to be integrated with the cut end of the elongated material 7, as shown in FIG.
このとき射出された樹脂はキヤビテイ１４の入
口側空間１４ａにほぼ充満した後、絞り部２０を
通つて接合側空間１４ｂに充満することになる。
入口側空間１４ａに充満した樹脂は成形型によつ
て冷却されて粘度が高くなるとともに、絞り部２
０によつて絞られるため、接合側空間１４ｂに流
入する樹脂の圧力は低くなる。このような低圧の
状態で接合側空間１４ｂに充満する樹脂はさらに
粘度が高くなるため、接合側空間１４ｂが完全に
充満して保圧の状態に維持しても、当接部１６か
ら樹脂が流出して、逃げ部１７にバリ１８が発生
することはない。 The resin injected at this time almost fills the inlet side space 14a of the cavity 14, and then passes through the constriction part 20 and fills the joint side space 14b.
The resin filling the inlet side space 14a is cooled by the mold and increases in viscosity, and the resin fills the inlet side space 14a.
0, the pressure of the resin flowing into the bonding side space 14b becomes low. The resin that fills the joint space 14b in such a low pressure state has an even higher viscosity, so even if the joint space 14b is completely filled and the pressure is maintained, the resin will not leak out from the contact portion 16. No burrs 18 will be generated on the relief portion 17 due to leakage.
射出時の樹脂の圧力および射出量は第９図に示
すように、T0からT5に至る各時点ごとに段階的
に変化するように設定されているので、最低圧と
なる保圧時間（T4〜T5）またはそれに近い時点
で接合側空間１４ｂが完全に充満するように、入
口側空間１４ａ、接合側空間１４ｂおよび絞り部
２０の大きさを決定するのが望ましい。 As shown in Figure 9, the resin pressure and injection amount during injection are set to change stepwise at each time point from T 0 to T 5 . It is desirable to determine the sizes of the inlet side space 14a, the joint side space 14b, and the constricted portion 20 so that the joint side space 14b is completely filled at or near T 4 to T 5 ).
射出成形後、型開きによりモールデイング２を
取出す。モールデイング２は長尺材７の切断端部
に端末樹脂部９が一体的に形成されているが、端
末樹脂部９の裏面には仕切部材１９に対応する凹
部２１が形成される。 After injection molding, the molding 2 is removed by opening the mold. In the molding 2, a terminal resin part 9 is integrally formed at the cut end of the elongated material 7, and a recess 21 corresponding to the partition member 19 is formed on the back surface of the terminal resin part 9.
第１０図は他の実施例における射出成形型の断
面図であり、２２は当接部１６に形成された熱良
導体材料層、２３はこの熱良導体材料層２２を通
して当接部１６に開口する冷却流体管である。こ
の実施例の製造方法では、射出樹脂が接合側空間
１４ｂに充満する時点またはそれより若干前の時
点（例えばT3〜T4）に冷却流体管２３に冷却流
体（例えば空気）を供給すると、接合側空間１４
ｂ内の樹脂が加圧される時点で熱良導体材料層２
２を介して樹脂が冷却されて粘度が高くなり、同
時に冷却流体が開口部から流出して樹脂の流出が
阻止され、バリ発生防止効果はさらに高くなる。 FIG. 10 is a cross-sectional view of an injection mold in another embodiment, in which 22 is a layer of thermally conductive material formed on the abutting portion 16, and 23 is a cooling hole opened to the abutting portion 16 through this layer of thermally conductive material 22. It is a fluid pipe. In the manufacturing method of this embodiment, if a cooling fluid (for example, air) is supplied to the cooling fluid pipe 23 at the time when the injection resin fills the joint side space 14b or at a time slightly earlier (for example, from T 3 to T 4 ), Joining side space 14
When the resin in b is pressurized, the thermally conductive material layer 2
2, the resin is cooled and its viscosity increases, and at the same time, the cooling fluid flows out from the opening to prevent the resin from flowing out, further increasing the effect of preventing burr generation.
第１１図はさらに他の実施例における射出成形
型の断面図であり、この実施例では、キヤビテイ
１４が長尺材７の切断端面と同一断面形状となる
ように形成されており、この射出成形型を使用し
て射出成形することにより、長尺材７と同一の断
面形状を有する端末樹脂部９を、段差をつけるこ
となく、突合せ状に形成することができる。 FIG. 11 is a cross-sectional view of an injection molding die in still another embodiment. In this embodiment, the cavity 14 is formed to have the same cross-sectional shape as the cut end surface of the elongated material 7, and the injection molding die is By injection molding using a mold, the terminal resin portion 9 having the same cross-sectional shape as the elongated material 7 can be formed in an abutted shape without creating a step.
第１２図は別の実施例により製造されたウエザ
ーストリツプモールデイング３の斜視図であり、
このウエザーストリツプモールデイング３は曲げ
加工およびそれに必要な切欠８の形成は省略され
ており、直線状の長尺材７の端末部にそのまま端
末樹脂部９を形成したものである。 FIG. 12 is a perspective view of a weather strip molding 3 manufactured according to another embodiment,
In this weather strip molding 3, the bending process and the formation of the notches 8 necessary for the bending process are omitted, and the terminal resin part 9 is directly formed at the terminal part of the linear elongated material 7.
第１３図はさらに別の実施例により製造された
サイドモールデイング４の斜視図であり、このサ
イドモールデイング４は、金属板５（図示省略）
を埋設するように、その周囲に押出成形により樹
脂部６を形成した長尺材７を所定寸法に切断し、
他の切断を行うことなく、その端末部に端末樹脂
部９を形成したものである。 FIG. 13 is a perspective view of a side molding 4 manufactured according to still another embodiment, and this side molding 4 is made of a metal plate 5 (not shown).
A long material 7 with a resin part 6 formed by extrusion molding around it is cut to a predetermined size so as to embed it.
A terminal resin portion 9 is formed at the terminal portion without performing any other cutting.
以上の説明において、長尺材７の形状、構造は
目的とするモールデイングの種類によつて変更可
能である。その材質も金属板５だけのもの、ある
いは樹脂部６だけのものであつてもよいが、両者
の結合したものが一般的であり、さらに装飾用の
光輝フイルムまたは着色フイルムを外表面に有す
るものもある。金属板５はステンレス板、アルミ
ニウム板などが使用され、ロール成形したものあ
るいはしないものなどが使用される。樹脂部６は
軟質塩化ビニル樹脂などの弾性に富む合成樹脂に
よつて押出成形により形成される。射出成形型の
構成も製造するモールデイングに合わせて任意に
変更でき、絞り部２０も仕切部材１９以外の手段
によつて形成してもよい。 In the above description, the shape and structure of the elongated material 7 can be changed depending on the type of intended molding. The material may be only the metal plate 5 or only the resin part 6, but it is generally a combination of both, and it also has a decorative bright film or colored film on the outer surface. There is also. The metal plate 5 is made of a stainless steel plate, an aluminum plate, or the like, and may or may not be roll-formed. The resin portion 6 is formed by extrusion molding of a synthetic resin with high elasticity such as soft vinyl chloride resin. The structure of the injection mold can also be changed arbitrarily according to the molding to be manufactured, and the constricted portion 20 may also be formed by means other than the partition member 19.
本発明によれば、射出成形型のキヤビテイ内の
長尺材切断端部付近に射出樹脂の流入に対する絞
り部を設けて射出成形するようにしたので、長尺
材に誤差、バラツキがある場合でも、バリが発生
することがなく、バリ除去作業を省略するととも
に、優れた外観のモールデイングを製造すること
ができる。
According to the present invention, injection molding is performed by providing a constriction part for the inflow of the injected resin near the cut end of the long material in the cavity of the injection mold, so even if there are errors or variations in the long material, Therefore, burrs do not occur, the burr removal work can be omitted, and a molding with an excellent appearance can be manufactured.
第１図は自転車の車体の側面図、第２図はウエ
ザーストリツプモールデイングの前部を切断した
斜視図、第３図は長尺材の端末を切断した状態を
示す斜視図、第４図は射出成形型の断面図、第５
図はそのＡ−Ａ断面図、第６図はこの発明の一実
施例における射出成形型の断面図、第７図はその
Ｂ−Ｂ断面図、第８図は製造されたウエザースト
リツプモールデイングの前部を切断した斜視図、
第９図は射出成形時の圧力および射出量を示すグ
ラフ、第１０図および第１１図はそれぞれ他の実
施例における射出成形型の断面図、第１２図は別
の実施例により製造されたウエザーストリツプモ
ールデイングの斜視図、第１３図はさらに別の実
施例により製造されたサイドモールデイングの斜
視図である。
各図中、同一符号は同一または相当部分を示
し、１は車体、２，３はウエザーストリツプモー
ルデイング、４はサイドモールデイング、５は金
属板、６は樹脂部、７は長尺材、９は端末樹脂
部、１１はキヤビテイ型、１２はコア型、１３は
スライドコア型、１４はキヤビテイ、１６は当接
部、１８はバリ、１９は仕切部材、２０は絞り部
である。
Figure 1 is a side view of the bicycle body, Figure 2 is a perspective view with the front section of the weather strip molding cut away, Figure 3 is a perspective view showing the end of a long piece of material cut away, and Figure 4 The figure is a cross-sectional view of the injection mold, No. 5
6 is a sectional view of an injection mold according to an embodiment of the present invention, FIG. 7 is a sectional view taken along B-B, and FIG. 8 is a manufactured weather strip mold. A perspective view of the front section of the deing;
FIG. 9 is a graph showing the pressure and injection amount during injection molding, FIGS. 10 and 11 are cross-sectional views of injection molds in other embodiments, and FIG. 12 is a weather mold manufactured by another embodiment. A perspective view of the strip molding. FIG. 13 is a perspective view of a side molding manufactured according to yet another embodiment. In each figure, the same reference numerals indicate the same or equivalent parts, 1 is the vehicle body, 2 and 3 are weather strip moldings, 4 is side molding, 5 is a metal plate, 6 is a resin part, and 7 is a long material. , 9 is a terminal resin part, 11 is a cavity mold, 12 is a core mold, 13 is a slide core mold, 14 is a cavity, 16 is a contact part, 18 is a burr, 19 is a partition member, and 20 is a constriction part.
Claims (1)
材の端末部を射出成形型に挿入し、射出成形によ
り端末樹脂部を形成する方法において、挿入され
た長尺材の切断端部付近のキヤビテイ内に射出樹
脂の流入に対する絞り部を形成し、絞り部を通し
て射出樹脂をキヤビテイ内に充填するようにした
ことを特徴とするモールデイングの製造方法。 ２ 射出樹脂の充填が保圧時間またはそれに近い
時点で完了するようにされた特許請求の範囲第１
項記載のモールデイングの製造方法。 ３ 射出樹脂の充填完了時点またはそれに近い時
点で、射出成形型の長尺材との当接部付近を冷却
するようにした特許請求の範囲第１項または第２
項記載のモールデイングの製造方法。 ４ 長尺材が押出成形品である特許請求の範囲第
１項ないし第３項のいずれかに記載のモールデイ
ングの製造方法。 ５ 絞り部がゲートと対向する仕切部材によつて
形成された特許請求の範囲第１項ないし第４項の
いずれかに記載のモールデイングの製造方法。[Scope of Claims] 1. In a method of inserting an end portion of a long material cut into a predetermined length and end shape into an injection mold and forming a terminal resin portion by injection molding, the inserted long material A method for manufacturing a molding, characterized in that a constriction portion for inflow of the injected resin is formed in the cavity near the cut end of the molding, and the injected resin is filled into the cavity through the constriction portion. 2. Claim 1 in which filling of the injection resin is completed at or near the holding pressure time
The method for manufacturing the molding described in Section 1. 3. Claim 1 or 2, in which the vicinity of the contact portion with the elongated material of the injection mold is cooled at or near the time of completion of filling the injection resin.
The method for manufacturing the molding described in Section 1. 4. The method for manufacturing a molding according to any one of claims 1 to 3, wherein the elongated material is an extrusion molded product. 5. The method for manufacturing a molding according to any one of claims 1 to 4, wherein the constricted portion is formed by a partition member facing the gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17573883A JPS6067121A (en) | 1983-09-22 | 1983-09-22 | Manufacture of molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17573883A JPS6067121A (en) | 1983-09-22 | 1983-09-22 | Manufacture of molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067121A JPS6067121A (en) | 1985-04-17 |
| JPS6353008B2 true JPS6353008B2 (en) | 1988-10-20 |
Family
ID=16001380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17573883A Granted JPS6067121A (en) | 1983-09-22 | 1983-09-22 | Manufacture of molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067121A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56135044A (en) * | 1981-03-09 | 1981-10-22 | Hashimoto Forming Co Ltd | Formation of end cap for molding |
| JPS5749385A (en) * | 1980-07-10 | 1982-03-23 | Siemens Ag | Circuit device for forming voltage signal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5845960Y2 (en) * | 1978-12-19 | 1983-10-19 | 橋本フオ−ミング工業株式会社 | Molding |
-
1983
- 1983-09-22 JP JP17573883A patent/JPS6067121A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749385A (en) * | 1980-07-10 | 1982-03-23 | Siemens Ag | Circuit device for forming voltage signal |
| JPS56135044A (en) * | 1981-03-09 | 1981-10-22 | Hashimoto Forming Co Ltd | Formation of end cap for molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067121A (en) | 1985-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5395582A (en) | Hollow injection molding method | |
| JPS6353008B2 (en) | ||
| JP3241467B2 (en) | Method for producing resin tubular body | |
| JPS61150820A (en) | Manufacture of glass run channel | |
| JP2936457B2 (en) | Vehicle window with synthetic resin frame | |
| JPS6216807B2 (en) | ||
| JPS6068916A (en) | Preparation of molding | |
| JPS6067122A (en) | Manufacture of molding | |
| JP3226408B2 (en) | Automobile molding and manufacturing method thereof | |
| JP3760775B2 (en) | Molding manufacturing method and apparatus | |
| JP3462164B2 (en) | Method of manufacturing weatherstrip | |
| JPH07178763A (en) | Door glass run for automobile | |
| JPS6031932A (en) | Molding method of terminal of molding | |
| JPS63120620A (en) | Molding die for lens complex | |
| JPS6155851B2 (en) | ||
| JP2530166B2 (en) | Molding manufacturing method | |
| JPS6157173B2 (en) | ||
| JP2629510B2 (en) | Manufacturing method for long molded products | |
| JP3027091B2 (en) | Vehicle window molding and manufacturing method thereof | |
| JP2830667B2 (en) | Mall manufacturing method | |
| JPS6241847B2 (en) | ||
| JPH054256A (en) | Gate structure of sandwich mold | |
| JPH045571B2 (en) | ||
| JPS6025716A (en) | Manufacture of molding | |
| JP3166439B2 (en) | Molding method of bumper fascia |