JPH03199018A - Manufacture of formed article - Google Patents
Manufacture of formed articleInfo
- Publication number
- JPH03199018A JPH03199018A JP1340744A JP34074489A JPH03199018A JP H03199018 A JPH03199018 A JP H03199018A JP 1340744 A JP1340744 A JP 1340744A JP 34074489 A JP34074489 A JP 34074489A JP H03199018 A JPH03199018 A JP H03199018A
- Authority
- JP
- Japan
- Prior art keywords
- foaming agent
- skin
- mold
- cylindrical part
- skin member
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000004088 foaming agent Substances 0.000 claims abstract description 76
- 238000002347 injection Methods 0.000 claims abstract description 52
- 239000007924 injection Substances 0.000 claims abstract description 52
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000004604 Blowing Agent Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、成形型のキャビティの内面に泊うように表皮
部材を配し、該表皮部材の内部空間に発泡剤を充填して
成る発泡品の製造方法に関する。Detailed Description of the Invention "Industrial Field of Application" The present invention relates to a foamed product made by arranging a skin member so as to fit on the inner surface of a cavity of a mold, and filling the inner space of the skin member with a foaming agent. Regarding the manufacturing method of the product.
「従来の技術」
従来、この種の発泡品の製造方法としては、例えば、第
７図に示すようなものがある。"Prior Art" Conventionally, as a method for manufacturing this type of foam product, there is a method as shown in FIG. 7, for example.
すなわち、発泡品であるヘットレスト本体ｌの製造方法
を示しており、成形型５のキャビティの中央部にインサ
−ト部材２が配され、成形型１の内面に沿うように表皮
部材３が配されている１表皮部材３とインサート部材２
との隙間に発泡剤４を充填するため、成形型１には発泡
剤４用の注入口６が穿設され、注入口２に対応して表皮
部材３に発泡剤４用の取入れ孔３ａが穿設されているも
のである。That is, this shows a method of manufacturing a headrest body l which is a foam product, in which an insert member 2 is placed in the center of a cavity of a mold 5, and a skin member 3 is placed along the inner surface of the mold 1. 1 Outer skin member 3 and insert member 2
In order to fill the gap between the mold 1 and the foaming agent 4, an injection port 6 for the foaming agent 4 is formed in the mold 1, and an intake hole 3a for the foaming agent 4 is formed in the skin member 3 corresponding to the injection port 2. It is perforated.
「発明が解決しようとする課題」
しかしながら、このような従来のヘッドレスト本体ｌの
製造方法では、発泡剤４を表皮部材３とインサート部材
２との間に充填する際に、成形型５の注入口６の周縁部
と表皮部材３の取入れ孔３ａとの間の隙間に発泡剤４が
流れ込み１表側にパリが発生したりして品質が低下する
という問題点があった。"Problem to be Solved by the Invention" However, in such a conventional method for manufacturing the headrest body l, when filling the foaming agent 4 between the skin member 3 and the insert member 2, the injection port of the mold 5 is There was a problem in that the foaming agent 4 flowed into the gap between the peripheral edge of the cover member 6 and the intake hole 3a of the skin member 3, causing cracks to occur on the front side of the cover member 1, resulting in a deterioration in quality.
本発明は、このような従来の問題点に着目してなされた
もので、表皮部材の取入れ孔に表皮止め具を予め嵌装し
、発泡剤を充填する際に、成形型の注入口に表皮止め具
の流込み防止用の筒状部を嵌入するようにしたり、成形
型の注入口の周縁部に表皮止め具の流込み防止用のフラ
ンジを当接するようにしたことにより、成形型の注入口
の周縁部と表皮部材の取入れ孔との間の隙間に発泡剤が
入り込まないようになり、ハリなどが生しないて、品質
を向上することができる発泡品の製造方法を提供するこ
とを目的としている。The present invention has been made by focusing on such conventional problems.A skin stopper is fitted in advance into the intake hole of the skin member, and when filling the foaming agent, the skin is inserted into the injection port of the mold. By fitting a cylindrical part to prevent the stopper from flowing in, and by abutting the periphery of the injection port of the mold with a flange to prevent the skin stopper from flowing into the mold, injection of the mold is prevented. An object of the present invention is to provide a method for manufacturing a foamed product that prevents a foaming agent from entering the gap between the peripheral edge of an inlet and an intake hole of a skin member, prevents firmness, and improves quality. It is said that
「課題を解決するための手段」
かかる目的を達成するための本発明の要旨とするところ
は。"Means for Solving the Problems" What is the gist of the present invention to achieve these objects?
（１）成形型のキャビティの内面に沿うように表皮部材
を配し、該表皮部材の内部空間に発泡剤を充填して成る
発泡品の製造方法において、前記成形型に設けらた発泡
剤用の注入口に対応して、前記表皮部材に発泡剤用の取
入れ孔を穿設し、該取入れ孔に流込み防止用の筒状部を
立設した表皮止め具を嵌装し。(1) In a method for manufacturing a foamed product, in which a skin member is arranged along the inner surface of a cavity of a mold, and a foaming agent is filled in the inner space of the skin member, the foaming agent provided in the mold is An intake hole for the foaming agent is formed in the skin member corresponding to the injection port, and a skin stopper having a cylindrical part for preventing the foaming agent from flowing into the intake hole is fitted into the intake hole.
発泡剤を注入する際に、成形型と表皮部材との隙間に発
泡剤が入り込まないよう、前記注入口に前記流込み防止
用の筒状部を嵌入したことを特徴とする発泡品の製造方
法。A method for manufacturing a foamed product, characterized in that when injecting the foaming agent, the injection-preventing cylindrical part is fitted into the injection port so that the foaming agent does not enter the gap between the mold and the skin member. .
（２） １＆形型のキャビティの内面に沿うように表皮
部材を配し、該表皮部材の内部空間に発泡剤を充填して
成る発泡品の製造方法において、前記成形型に設けらた
発泡剤用の注入口に対応して、前記表皮部材に発泡剤用
の取入れ孔を穿設し、該取入れ孔にワッシャ形状の流込
み防止用のフランジを有する表皮止め具を嵌装し、発泡
剤を注入する際に、成形型と表皮部材との隙間に発泡剤
が入り込まないよう、前記注入口の周縁部に前記流込み
防止用のフランジを当接したことを特徴とする発泡品の
製造方法に存する。(2) A method for producing a foamed product, in which a skin member is arranged along the inner surface of a cavity of a 1 & shape mold, and a foaming agent is filled in the inner space of the skin member, wherein the foaming agent provided in the mold is An intake hole for the foaming agent is formed in the skin member corresponding to the injection port for the foaming agent, and a skin stopper having a washer-shaped flange for preventing flow is fitted into the intake hole, and the foaming agent is injected into the skin member. A method for manufacturing a foam product, characterized in that the flow prevention flange is brought into contact with the peripheral edge of the injection port to prevent the foaming agent from entering the gap between the mold and the skin member during injection. Exists.
「作用」
表皮止め具に流込み防止用の筒状部を設けたものにおい
ては、成形型のキャビティの内面に沿うように表皮部材
を配する。このとき、成形型に設けらた発泡剤用の注入
口に、表皮部材に穿設した発泡剤用の取入れ孔が対応す
るようにする。"Function" In the case where the skin stopper is provided with a cylindrical part for preventing flow, the skin member is arranged along the inner surface of the cavity of the mold. At this time, the injection hole for the foaming agent provided in the mold corresponds to the intake hole for the foaming agent drilled in the skin member.
前後して、取入れ孔に表皮止め具を嵌装し、表皮止め具
の流込み防止用の筒状部を注入口に嵌入する。Before and after, the skin stopper is fitted into the intake hole, and the cylindrical part of the skin stopper for preventing flow is fitted into the injection port.
成形型の注入口を通して発泡剤を注入すると、発泡剤か
取入れ孔を通って、表皮部材の内部空間に入り１表皮部
材の内部空間が発泡剤で充填されてい〈。When the foaming agent is injected through the injection port of the mold, the foaming agent passes through the intake hole and enters the inner space of the skin member, filling the inner space of the skin member with the foaming agent.
表皮部材の内部空間が発泡剤で十分に充填され、また１
発泡剤の分解が進むと、発泡剤が取入れ孔を通って注入
口側へ溢れ出そうとする。The inner space of the skin member is sufficiently filled with the foaming agent, and
As the decomposition of the foaming agent progresses, the foaming agent tends to overflow to the injection port through the intake hole.
このとき、成形型と表皮部材との隙間の間口が流れ込み
防止用の筒状部で塞がれ１発泡剤は成形型と表皮部材と
の隙間に入り込まないで、流れ込み防止用の筒状部を経
て注入口へ流れ出すようになる。At this time, the opening of the gap between the mold and the skin member is closed by the cylindrical part for preventing flow, and the blowing agent does not enter the gap between the mold and the skin member, but closes the cylindrical part for preventing flow. After that, it will flow out to the injection port.
表皮止め具にワッシャ形状の流込み防止用のフランジを
設けたものにおいては、同じく、取入れ孔に表皮止め具
を嵌装し１表皮止め具の流込み防止用の７ランジを注入
口の周縁部に当接する。In the case where the skin stopper is provided with a washer-shaped flange to prevent inflow, similarly, the skin stopper is fitted into the intake hole, and the 7 flange of the skin stopper to prevent inflow is attached to the periphery of the injection port. comes into contact with.
成形型の注入口を通して発泡剤を注入すると、発泡剤が
取入れ孔を通って、表皮部材の内部空間に入り、表皮部
材の内部空間が発泡剤で充填されていく。When the foaming agent is injected through the injection port of the mold, the foaming agent passes through the intake hole and enters the interior space of the skin member, filling the interior space of the skin member with the foaming agent.
表皮部材の内部空間が発泡剤で十分に充填され、また、
発泡剤の分解が進むと１発泡剤が取入れ孔を通って注入
口側へ溢れ出そうとする。The inner space of the skin member is sufficiently filled with the foaming agent, and
As the decomposition of the blowing agent progresses, one blowing agent tends to overflow to the injection port through the intake hole.
このとき、注入口の周縁部に流れ込み防止用のフランジ
か当接していていて、成形型と表皮部材との隙間の間口
が流込み防止用のフランジで塞がれており、発泡剤は成
形型と表皮部材との隙間に入り込まないで、流込み防止
用のフランジを経て注入口へ流れ出すようになる。At this time, the flange for preventing flow is in contact with the periphery of the injection port, the opening of the gap between the mold and the skin member is closed by the flange for preventing flow, and the blowing agent is in contact with the mold. Instead of entering the gap between the material and the skin member, it flows out to the injection port through the flow-preventing flange.
「実施例」
以下、図面に基づき本発明の各種実施例を説明する。な
お、各種実施例につき同種の部位には同一符号を付し重
複した説明を省略する。"Embodiments" Various embodiments of the present invention will be described below based on the drawings. Incidentally, the same types of parts in various embodiments are given the same reference numerals and redundant explanations will be omitted.
第１図から第３図は本発明の第１実施例を示している。1 to 3 show a first embodiment of the invention.
第１図は、ヘッドレスト本体本体の製造方法を示してい
る。FIG. 1 shows a method of manufacturing the headrest main body.
ヘッドレスト本体１０は、中心部にインサート部材１１
を配し、インサート部材１１を発泡剤１２が分解して成
るフオーム部材１３で覆ったものに、さらに表皮部材１
４を被覆したものである。The headrest main body 10 has an insert member 11 in the center.
The insert member 11 is covered with a foam member 13 formed by decomposing the foaming agent 12, and a skin member 1 is further provided.
4 is coated.
インサート部材１１に基端部を固設したステー１５が表
皮部材１４の取出し孔を通って外方へ延設されている０
表皮部材１４には発泡剤１２用の取入れ孔１６が穿設さ
れている。A stay 15 whose base end is fixed to the insert member 11 extends outward through the removal hole of the skin member 14.
An intake hole 16 for the foaming agent 12 is bored in the skin member 14 .
ヘットレスト本体１０の成形型２０は上型２１と下型２
２とから成り、下型２２には形状出し面２４が形成され
ている。下型２２の形状出し面２４と、上型２１の下面
２３とにより囲まれた空間かキャビティ２５になってい
る。The mold 20 of the headrest body 10 is an upper mold 21 and a lower mold 2.
2, and a shaping surface 24 is formed on the lower die 22. A cavity 25 is a space surrounded by the shaping surface 24 of the lower mold 22 and the lower surface 23 of the upper mold 21.
第２図および第３図に示すように、上型２１には発泡剤
１２用の円形断面の注入口２６が穿設されている。注入
口２６が表皮部材１４側の取入れ孔１６に対応している
。注入口２６の上部には蓋部材２７が嵌込まれる嵌込み
部２８が形成され、注入口２６の下端部には一般部位よ
り大径の円形断面の嵌合部２９が形成されている。As shown in FIGS. 2 and 3, the upper die 21 is provided with an injection port 26 having a circular cross section for the foaming agent 12. As shown in FIGS. The injection port 26 corresponds to the intake hole 16 on the skin member 14 side. A fitting part 28 into which the lid member 27 is fitted is formed at the upper part of the injection port 26, and a fitting part 29 having a circular cross section with a larger diameter than the general part is formed at the lower end of the injection port 26.
上５２１にはステー１５用の挿通孔２１ａか穿設されて
いる。An insertion hole 21a for the stay 15 is bored in the upper portion 521.
表皮部材１４の取入れ孔１６には表皮止め具３０が嵌装
されている。表皮止め具３０は、ＰＰ、ＰＥ等の発泡剤
１２が接着しない樹脂材により形成され、取入れ孔１６
を貫通して注入口２６の嵌合部２９に嵌入可能な流込み
防止用の筒状部３１を有している。A skin stopper 30 is fitted into the intake hole 16 of the skin member 14. The skin stopper 30 is made of a resin material such as PP or PE to which the foaming agent 12 does not adhere.
It has a cylindrical part 31 for preventing inflow that can be inserted into the fitting part 29 of the injection port 26 by penetrating through it.
流込み防止用の筒状部３１は、嵌入した際に注入口２６
の一般部位に滑らかに連続するよう、注入口２６の内径
とほぼ同じ内径を有するとともに、注入口２６の一般部
位と嵌合部２９との段部に突き当たるような高さを有す
る。また、嵌合部２９に隙間なく嵌り込むよう先端に向
かって徐々に拡径している。The cylindrical part 31 for preventing inflow is inserted into the inlet 26 when inserted.
It has an inner diameter that is approximately the same as the inner diameter of the injection port 26 so as to smoothly continue with the general portion of the injection port 26, and has a height such that it abuts against the step between the general portion of the injection port 26 and the fitting portion 29. Further, the diameter gradually increases toward the tip so that it fits into the fitting portion 29 without any gaps.
流込み防止用の筒状部３１には、取入れ孔１６の径より
その外径が大きく取入れ孔１６に係止可能な掛止用の鍔
部３２が一体的に形成されている。The cylindrical part 31 for preventing inflow is integrally formed with a flange part 32 for locking, which has an outer diameter larger than the diameter of the intake hole 16 and can be latched to the intake hole 16.
次に作用を説明する。Next, the action will be explained.
成形型２０のキャビティ２５の内面に、真空成形された
表皮部材１４を沿わせるようじする。このとき５表皮部
材１４側の取入れ孔１６に予め嵌装しておいた表皮止め
具３０か、上型２１側の注入口２６に対応するようにす
る。The vacuum-formed skin member 14 is placed along the inner surface of the cavity 25 of the mold 20. At this time, it is made to correspond to either the skin stopper 30 fitted in advance into the intake hole 16 on the side of the 5 skin member 14 or the injection port 26 on the side of the upper mold 21.
次に、表皮止め具３０の掛止用の鍔部３２が取入れ孔１
６の周縁部に係止していることを確認するとともに、取
入れ孔１４の嵌合部２９に表皮止め具３０の流込み防止
用の筒状部３１が嵌り込んでいることを確認する。Next, the flange 32 for hooking the skin stopper 30 is attached to the intake hole 1.
6 and that the cylindrical part 31 for preventing the skin stopper 30 from flowing in is fitted into the fitting part 29 of the intake hole 14.
その後、注入口２６を通して発泡剤１２を注入すると１
発泡材１２は注入口２６の一般部位を通り、流込み防止
用の筒状部３１を経て、発泡剤１２か表皮部材１４の内
部空間に入り込む。After that, when the foaming agent 12 is injected through the injection port 26, 1
The foaming material 12 passes through the general portion of the injection port 26, passes through the cylindrical part 31 for preventing inflow, and enters the inner space of the foaming agent 12 or the skin member 14.
表皮部材１４の内部空間が発泡剤１２で充填されていき
、また、発泡剤１２の分解が進行することによって、発
泡剤１２か流込み防止用の筒状部３１を通って逆に注入
口２６側へ溢れ出そうとする。The inner space of the skin member 14 is filled with the foaming agent 12, and as the decomposition of the foaming agent 12 progresses, the foaming agent 12 passes through the cylindrical part 31 for preventing inflow and conversely enters the injection port 26. Trying to spill out to the side.
このとき、発泡剤１２の分解によるガス圧により、取入
れ孔１６の周縁部が掛止用の鍔部３２に押されて潰され
て、取メれ孔１６の周縁部と掛止用の鍔部３２との間の
隙間か極めて少なくなり、その隙間からはガスが抜は出
すものの、その隙間に発泡剤１２が入り込むようなこと
はない。At this time, due to the gas pressure caused by the decomposition of the foaming agent 12, the periphery of the intake hole 16 is pressed and crushed by the latching flange 32, and the periphery of the intake hole 16 and the latching flange are crushed. 32 becomes extremely small, and although gas is released from the gap, the foaming agent 12 does not enter into the gap.
また、上型２１と表皮部材１４との隙間の間口か流れ込
み防止用の筒状部３１て塞がれているため１発泡剤１２
は上型２１と表皮部材１４との隙間に入り込まないで、
流れ込み防止用の筒状部３１を経て注入口２６の一般部
位へ溢れ出すようになる。In addition, since the opening of the gap between the upper mold 21 and the skin member 14 is blocked by the cylindrical part 31 for preventing flow, 1 foaming agent 12
do not enter the gap between the upper mold 21 and the skin member 14,
It overflows into the general area of the injection port 26 through the cylindrical part 31 for preventing inflow.
発泡剤１２の分解が終了した後、上型２１を外して、キ
ャビティ２５からヘットレスト本体１０を取り出す。こ
のとき、表皮部材１４の取入れ孔１６から流込み防止用
の筒状部３１および溢れ出した発泡剤に相当する部位が
突出している。After the foaming agent 12 has been decomposed, the upper mold 21 is removed and the headrest main body 10 is taken out from the cavity 25. At this time, a cylindrical portion 31 for preventing inflow and a portion corresponding to the overflowing foaming agent protrude from the intake hole 16 of the skin member 14.
次に、流込み防止用の筒状部３１を引っ張ると、掛止用
の鍔部３２が撓んて取入れ孔１６から外れ、表皮止め具
３０をヘッドレスト本体１０から外すことかできる。ま
た、溢れ出して突出した発泡剤に相当する部位を切断し
て、表皮部材１４の表面に滑らかに連続するようにする
。Next, when the cylindrical part 31 for preventing inflow is pulled, the flange part 32 for hanging is bent and removed from the intake hole 16, and the skin stopper 30 can be removed from the headrest main body 10. In addition, the portion corresponding to the overflowing and protruding foaming agent is cut to ensure smooth continuity with the surface of the skin member 14.
表皮止め具３０をヘッドレスト本体ｌＯから外さずに、
溢れ出して突出した発泡剤に相当する部位とともに切断
してもよい。Without removing the skin stopper 30 from the headrest body lO,
It may be cut along with the portion corresponding to the foaming agent that overflows and protrudes.
第４図から第６図は本発明の第２実施例を示している。4 to 6 show a second embodiment of the invention.
本実施例では、表皮止め具３０の代りに、ワッシャ形状
の流込み防止用のフランジ４１を有する表皮止め具４０
を用いたもので、流込み防止用の７ランジ４１にはロケ
ート孔４２が穿設され、上型２１のロケートピン２１ｂ
が嵌入することにより、表皮止め具４０が位置決めされ
るようになっている。In this embodiment, instead of the skin stopper 30, a skin stopper 40 having a washer-shaped flow prevention flange 41 is used.
A locating hole 42 is formed in the 7 flange 41 for preventing pouring, and the locating pin 21b of the upper mold 21
By fitting, the skin stopper 40 is positioned.
それにより、流込み防止用のフランジ４１が注入ｒ３２
６の周縁部Ｃ当接し、充填された発泡剤１２が注入口２
６側へ溢れ出そうとすると、上型２１と表皮部材１４と
の隙間の間口が流込み防止用のフランジ４１で塞がれて
おり、発泡剤１２は上型２１と表皮部材１４との隙間に
入り込まないで、流込み防止用のフランジ４１を経て注
入口２６へ流れ出すようになる。As a result, the flange 41 for preventing inflow is inserted into the injection r32.
The peripheral edge C of 6 abuts, and the filled foaming agent 12 enters the injection port 2.
If the foaming agent 12 tries to overflow to the upper mold 21 and the skin member 14, the opening of the gap between the upper mold 21 and the skin member 14 is blocked by the flange 41 to prevent the foaming from flowing. Instead of flowing into the inlet, it flows out into the inlet 26 through the inflow prevention flange 41.
前記第一実施例に係るヘッドレスト本体１０の製造方法
によれば、表皮止め具３０の流込み防止用の筒状部３１
を先端部向かって次第に拡径していフたので、注入口２
６の嵌合部２９の周壁に流込み防止用の筒状部３１の先
端部が隙間なく弾撥的に当接して、発泡剤の流れ込みを
一層防止することがてきる。According to the method of manufacturing the headrest main body 10 according to the first embodiment, the cylindrical part 31 for preventing the skin stopper 30 from flowing in
The diameter of the injection port 2 was gradually expanded toward the tip.
The tip of the cylindrical part 31 for preventing inflow elastically contacts the peripheral wall of the fitting part 29 of No. 6 without any gap, thereby further preventing the foaming agent from inflowing.
「発明の効果」
本発明に係る発泡品の製造方法によれば、表皮部材の取
入れ孔に表皮止め具を予め嵌装し、発泡剤を充填するに
先立って、成形型の注入口に表皮止め具の流込み防止用
の筒状部を嵌入するようにしたり、同しく１発泡剤を充
填するに先立って、成形をの注入口の周縁部に表皮止め
具の流込み防止用のフランジを当接するようにしたので
、Ｉ＆形型の注入口の周縁部と表皮部材の取入れ孔との
間の隙間に発泡剤が入り込まないようになり、ハリなど
が生しないで、発泡品の品質を向上することができる。"Effects of the Invention" According to the method for manufacturing a foamed product according to the present invention, the skin stopper is fitted in advance into the intake hole of the skin member, and the skin stopper is inserted into the injection port of the mold before filling with the foaming agent. In addition to fitting a cylindrical part to prevent the filling from flowing in, a flange to prevent the skin stopper from flowing into the mold is placed around the periphery of the injection port before filling with the foaming agent. Since they are in contact with each other, the foaming agent is prevented from entering the gap between the periphery of the I& shaped injection port and the intake hole of the skin member, and the quality of the foamed product is improved without causing stiffness. be able to.
第１図から第３図は本発明の第１実施例を示しており、
第１図はヘットレスト本体の成形型の要部断面図、第２
図は同じく部分断面図、第３図は表皮止め具の斜視図、
第４図から第６図は本発明の第２実施例を示しており、
第４図はヘッドレスト本体の成形型の要部断面図、第５
図は同じく部分断面図、第６図は表皮止め具の斜視図、
第７図は従来例を示しており、ヘッドレスト本体の成形
型の要部断面図である。
ｌＯ・・・ヘッドレスト本体
１２・・・発泡剤
１４・・・表皮部材
１６・・・取入れ孔
２０・・・成形型
２５・・・キャビティ
２６・・・注入口
３０．４０・・・表皮止め具
３１・・・流込み防止用の筒状部
４１・・・流込み防止用のフランジ1 to 3 show a first embodiment of the present invention,
Figure 1 is a sectional view of the main parts of the mold for the headrest body, Figure 2
The figure is also a partial sectional view, and Figure 3 is a perspective view of the skin stopper.
4 to 6 show a second embodiment of the present invention,
Figure 4 is a sectional view of the main parts of the mold for the headrest body, Figure 5
The figure is also a partial sectional view, and Figure 6 is a perspective view of the skin stopper.
FIG. 7 shows a conventional example, and is a sectional view of a main part of a mold for a headrest body. lO...Headrest body 12...Foaming agent 14...Skin member 16...Intake hole 20...Mold 25...Cavity 26...Injection port 30.40...Skin stopper 31... Cylindrical part for preventing inflow 41... Flange for preventing inflow
Claims (2)
を配し、該表皮部材の内部空間に発泡剤を充填して成る
発泡品の製造方法において、 前記成形型に設けらた発泡剤用の注入口に対応して、前
記表皮部材に発泡剤用の取入れ孔を穿設し、該取入れ孔
に流込み防止用の筒状部を立設した表皮止め具を嵌装し
、 発泡剤を注入する際に、成形型と表皮部材との隙間に発
泡剤が入り込まないよう、前記注入口に前記流込み防止
用の筒状部を嵌入したことを特徴とする発泡品の製造方
法。(1) A method for producing a foamed product, in which a skin member is arranged along the inner surface of a cavity of a mold, and a foaming agent is filled in the internal space of the skin member, wherein the foaming agent provided in the mold is filled with a foaming agent. An intake hole for the foaming agent is drilled in the skin member corresponding to the injection port, and a skin stopper having a cylindrical part for preventing flow in is fitted into the intake hole, and the foaming agent is inserted into the skin member. A method for producing a foamed product, characterized in that the injection-preventing cylindrical part is fitted into the injection port so that the foaming agent does not enter the gap between the mold and the skin member during injection.
を配し、該表皮部材の内部空間に発泡剤を充填して成る
発泡品の製造方法において、 前記成形型に設けらた発泡剤用の注入口に対応して、前
記表皮部材に発泡剤用の取入れ孔を穿設し、該取入れ孔
にワッシャ形状の流込み防止用のフランジを有する表皮
止め具を嵌装し、 発泡剤を注入する際に、成形型と表皮部材との隙間に発
泡剤が入り込まないよう、前記注入口の周縁部に前記流
込み防止用のフランジを当接したことを特徴とする発泡
品の製造方法。(2) A method for producing a foamed product, in which a skin member is arranged along the inner surface of a cavity of a mold, and a foaming agent is filled in the inner space of the skin member, wherein the foaming agent provided in the mold is filled with a foaming agent. An intake hole for the foaming agent is drilled in the skin member corresponding to the injection port, a skin stopper having a washer-shaped flange for preventing flow is fitted into the intake hole, and the foaming agent is injected. A method for manufacturing a foamed product, characterized in that the flow-preventing flange is brought into contact with the peripheral edge of the injection port to prevent the foaming agent from entering the gap between the mold and the skin member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1340744A JPH0639105B2 (en) | 1989-12-28 | 1989-12-28 | Foam manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1340744A JPH0639105B2 (en) | 1989-12-28 | 1989-12-28 | Foam manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03199018A true JPH03199018A (en) | 1991-08-30 |
| JPH0639105B2 JPH0639105B2 (en) | 1994-05-25 |
Family
ID=18339886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1340744A Expired - Lifetime JPH0639105B2 (en) | 1989-12-28 | 1989-12-28 | Foam manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639105B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2886878A1 (en) * | 2005-06-08 | 2006-12-15 | Tachi S Co | Foaming die for forming headrest in motor vehicle seat, has pair of lateral die segments movably connected with lower die segment so as to be displaceable toward and away from respective two lateral sides of die |
-
1989
- 1989-12-28 JP JP1340744A patent/JPH0639105B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2886878A1 (en) * | 2005-06-08 | 2006-12-15 | Tachi S Co | Foaming die for forming headrest in motor vehicle seat, has pair of lateral die segments movably connected with lower die segment so as to be displaceable toward and away from respective two lateral sides of die |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0639105B2 (en) | 1994-05-25 |
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