JP2003039446A - Method for producing foamed urethane molding - Google Patents

Method for producing foamed urethane molding

Info

Publication number
JP2003039446A
JP2003039446A JP2001232795A JP2001232795A JP2003039446A JP 2003039446 A JP2003039446 A JP 2003039446A JP 2001232795 A JP2001232795 A JP 2001232795A JP 2001232795 A JP2001232795 A JP 2001232795A JP 2003039446 A JP2003039446 A JP 2003039446A
Authority
JP
Japan
Prior art keywords
urethane foam
shape
base material
urethane
sheet
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
Application number
JP2001232795A
Other languages
Japanese (ja)
Other versions
JP4764569B2 (en
Inventor
Shinji Yamada
真二 山田
Kentaro Sakai
賢太郎 酒井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inoac Corp
Original Assignee
Inoue MTP KK
Inoac Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inoue MTP KK, Inoac Corp filed Critical Inoue MTP KK
Priority to JP2001232795A priority Critical patent/JP4764569B2/en
Publication of JP2003039446A publication Critical patent/JP2003039446A/en
Application granted granted Critical
Publication of JP4764569B2 publication Critical patent/JP4764569B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable molding cost reduction, fitting work facilitation, etc. SOLUTION: After a urethane raw material U from a urethane injection head 25 is injected continuously on the upper surface of a release sheet 16 main body fed continuously from a sheet supply source 26, the sheet 16 is deformed into a sheet cylindrical body 18 and passed in a cylindrical guide member 28. In a process in which the cylindrical body 18 is moved in the guide member 28, a lengthy rod-shaped foamed urethane base material 14 the curing of which is advanced to be able to hold the shape of itself is molded continuously inside the cylindrical body 18. After the cylindrical body 18 is peeled off from the base material 14, the base material 14 is fitted to a molding fixture 35 while being deformed in a desired shape, and the curing is finished in this state, so that a foamed urethane molding with the shape fixed is produced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、ウレタン原料か
ら自体の形状を保持し得る程度にキュアが進行した発泡
ウレタン基材を成形した後、該発泡ウレタン基材を所要
形状に変形させながら成形用治具にセットし、この状態
でキュアを終了させることで前記形状が定着した発泡ウ
レタン成形品を製造する方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to molding a urethane foam base material which has been cured to such an extent that it can retain its shape from a urethane raw material, and then deforming the urethane foam base material into a desired shape. The present invention relates to a method for producing a urethane foam molded article in which the shape is fixed by setting the jig on the jig and terminating the curing in this state.

【0002】[0002]

【従来の技術】例えば乗用車等におけるボデーの開口部
には、乗員室ドア、エンジンフード(ボンネット)あるい
はトランクリッド等(以下、纏めて「ドア」という)が開閉
可能に配設されている。そして、前記ボデー11の開口
部内縁と前記ドア12の外縁との接合ラインには、図7
に示すように、ボデー11側または/およびドア12側
に雨洩防止等を図るためのパッキン材10,10が配設
されている。このパッキン材10は、例えば丸形、半円
形、楕円形、四角形その他異形の横断面形状を有しかつ
適宜弾力性が付与されたゴムや発泡ウレタン基材等から
なり、直線部分や湾曲部分および屈曲部分等が複合的に
連設した前記接合ラインに沿って枠状に延設されてい
る。
2. Description of the Related Art For example, a passenger compartment door, an engine hood (bonnet), a trunk lid and the like (hereinafter collectively referred to as "door") are provided at an opening of a body of a passenger car so as to be opened and closed. The joining line between the inner edge of the opening of the body 11 and the outer edge of the door 12 has a structure shown in FIG.
As shown in FIG. 3, packing materials 10, 10 are provided on the body 11 side and / or the door 12 side to prevent rain leakage and the like. The packing material 10 has, for example, a round shape, a semicircular shape, an elliptical shape, a quadrangular shape or other irregular cross-sectional shape and is made of rubber or urethane foam base material or the like to which elasticity is appropriately given. The bent portion and the like are extended in a frame shape along the joint line in which they are continuously provided.

【0003】前述した種々の断面形状とされた発泡ウレ
タン基材を、乗用車等の前記パッキン材10として実施
するには、次のような方法が適宜採用されている。例え
ば、図8に示すように発泡成形型13を利用したもと
で前記接合ラインに沿う形状に発泡ウレタン基材14を
成形することで、単一の該発泡ウレタン基材14でパッ
キン材10を形成する方法、図9に示すように、所要
長の略直線状に成形した所要長の発泡ウレタン基材14
を2次加工により屈曲部分等で直列に接合することで、
複数の発泡ウレタン基材14でパッキン材10を形成す
る方法、図10に示すように、直線状に成形した長尺
の発泡ウレタン基材14をドアまたはボデーに取付ける
際に接合ラインに沿って強制的に屈曲させたり湾曲させ
ることで、単一の該発泡ウレタン基材14でパッキン材
10を形成する方法、等が実施されている。
In order to implement the above-mentioned urethane foam base material having various sectional shapes as the packing material 10 for passenger cars, the following methods are appropriately adopted. For example, as shown in FIG. 8, the urethane foam base material 14 is molded into a shape along the joining line under the use of the foam molding die 13, so that the packing material 10 is formed of a single urethane foam base material 14. Forming method, as shown in FIG. 9, a urethane foam base material 14 of a required length formed into a substantially linear shape of a required length.
By connecting in series at the bent part etc. by secondary processing,
A method of forming the packing material 10 with a plurality of urethane foam base materials 14, as shown in FIG. 10, forcing the long urethane foam base material 14 formed in a linear shape along the joining line when attaching it to a door or a body. A method of forming the packing material 10 with a single urethane foam base material 14 by bending or bending the same is used.

【0004】[0004]

【発明が解決しようとする課題】ところで前記〜の
各方法では、夫々の発泡ウレタン基材14でパッキン材
10を形成する場合、次のような欠点および課題を内在
している。先ずの場合では、発泡成形型13を利用し
て発泡ウレタン基材14を所要形状に成形してしまうの
でパッキン材10の質感および取付作業性が高くなる等
の利点はあるものの、該発泡成形型13の製作費用が嵩
むために成形コストアップを招来する一方、バッチ式で
あるから成形効率が低くて生産性が悪い等の問題を内在
している。またの場合では、各発泡ウレタン基材14
同士の接合作業を要するので作業工数増加に伴う成形コ
ストアップを招来する一方、接合部位の強度不足や質感
低下等が発生する等の問題を内在している。更にの場
合では、接合ラインの湾曲部分や屈曲部分で発泡ウレタ
ン基材14を無理矢理に変形させるため、該発泡ウレタ
ン基材14に復元弾力が作用して取付作業性が悪くなる
と共に、接合ラインに沿って適切に延設し得ない等の問
題を内在していた。
By the way, in each of the above methods (1) to (4), the following drawbacks and problems are inherent when the packing material 10 is formed from each urethane foam base material 14. In the first case, since the urethane foam base material 14 is molded into a desired shape by using the foam molding die 13, there is an advantage that the texture of the packing material 10 and the mounting workability are improved, but the foam molding die is used. The manufacturing cost of No. 13 increases, which causes an increase in molding cost. However, since it is a batch system, there are inherent problems such as low molding efficiency and poor productivity. In other cases, each urethane foam base material 14
Since joining work is required, the manufacturing cost is increased due to an increase in the number of working steps, while there are problems such as insufficient strength of the joining portion and deterioration of texture. Further, in the case where the urethane foam base material 14 is forcibly deformed at the curved portion or the bent portion of the joining line, the elastic resilience acts on the urethane foam base material 14 to deteriorate the mounting workability and There was a problem that it could not be properly extended along the line.

【0005】[0005]

【発明の目的】本発明は、前述した課題を好適に解決す
るべく提案されたもので、ウレタン原料から自体の形状
を保持し得る程度にキュアが進行した発泡ウレタン基材
を成形した後、該発泡ウレタン基材を所要形状に変形さ
せながら成形用治具にセットし、この状態でキュアを終
了させて前記形状が定着した発泡ウレタン成形品を製造
することで、成形コスト低減および取付作業容易化等を
可能とした発泡ウレタン成形品の製造方法を提供するこ
とを目的とする。
SUMMARY OF THE INVENTION The present invention has been proposed in order to preferably solve the above-mentioned problems. After molding a urethane foam base material which has been cured to such an extent that the urethane raw material can retain its own shape, Set the urethane foam base material into the required shape while deforming it to the required shape, finish the cure in this state, and manufacture the urethane foam molded product in which the shape has been fixed. It is an object of the present invention to provide a method for producing a urethane foam molded article that enables the above.

【0006】[0006]

【課題を解決するための手段】前記課題を解決し、所期
の目的を達成するため本発明は、シート供給源から連続
的に繰出された剥離シートの本体上面にウレタン注出ヘ
ッドからのウレタン原料を連続的に注入し、前記剥離シ
ートの本体部分を筒状ガイド部材の内側に通過させると
共に、該剥離シートの長手両端縁部を前記筒状ガイド部
材の長手方向に開設したスリットから合掌状に延出させ
てシート筒状体とし、前記シート筒状体が加熱した前記
筒状ガイド部材の内部を移動する過程で前記ウレタン原
料の反応を促進させ、該シート筒状体の内側に自体の形
状を保持し得る程度にキュアが進行した長尺棒状の発泡
ウレタン基材を連続的に成形し、前記筒状ガイド部材を
通過して到来する前記発泡ウレタン基材から、前記シー
ト筒状体を形成していた剥離シートを剥離し、前記剥離
後の発泡ウレタン基材を所要形状に変形させながら成形
用治具にセットし、この状態で該発泡ウレタン基材のキ
ュアを終了させることで前記形状が定着された発泡ウレ
タン成形品を製造するようにしたことを特徴とする。
SUMMARY OF THE INVENTION In order to solve the above problems and achieve an intended object, the present invention is directed to urethane from a urethane pouring head on the upper surface of the main body of a release sheet continuously fed from a sheet supply source. The raw material is continuously injected, the main body of the release sheet is passed through the inside of the tubular guide member, and both longitudinal end edges of the release sheet are shaped like a palm from a slit opened in the longitudinal direction of the tubular guide member. To form a sheet tubular body, and accelerate the reaction of the urethane raw material in the process of moving the inside of the tubular guide member where the sheet tubular body is heated, and the sheet tubular body itself From the urethane foam base material that has passed through the tubular guide member and is continuously molded, a urethane foam base material in the form of a long bar that has been cured to such an extent that the shape can be retained is formed into the sheet tubular body. Formed The peeling sheet was peeled off, and the urethane foam base material after peeling was set on a molding jig while deforming the foamed urethane base material into a required shape. In this state, the cure of the urethane foam base material was completed to fix the shape. It is characterized in that a urethane foam molded product is manufactured.

【0007】[0007]

【発明の実施の形態】次に、本発明に係る発泡ウレタン
成形品の製造方法につき、好適な実施例を挙げて、添付
図面を参照しながら以下説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Next, a method for producing a urethane foam molded article according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.

【0008】先ず、本発明の発泡ウレタン成形品の製造
方法を好適に実施し得る製造ラインにつき、概略的に説
明する。図1は、本発明の発泡ウレタン成形品の製造方
法を好適に実施し得る製造ラインを概略的に示す側面図
である。この製造ライン20は、ウレタン原料Uを反応
させて自体の形状を保持し得る程度にキュアが進行した
長尺棒状の発泡ウレタン基材14を連続的に成形する第
1成形工程部21と、成形された発泡ウレタン基材14
を長手方向の所要位置で湾曲変形や屈曲変形させ、この
状態で該基材14のキュアを終了させることで前記形状
が定着した発泡ウレタン成形品15を成形する第2成形
工程部22とから基本的に構成されている。
First, a production line capable of suitably carrying out the method for producing a urethane foam molded article of the present invention will be schematically described. FIG. 1 is a side view schematically showing a production line capable of suitably carrying out the method for producing a urethane foam molded article of the present invention. The manufacturing line 20 includes a first molding step unit 21 for continuously molding a long-rod-shaped urethane foam base material 14 which has been cured to the extent that the urethane raw material U can be reacted to maintain its shape. Foamed urethane base material 14
The second molding process section 22 for molding the urethane foam molded product 15 in which the shape is fixed by curving or bending at a required position in the longitudinal direction and terminating the curing of the base material 14 in this state. It is configured to

【0009】前記第1成形工程部21は、剥離シート1
6の繰出しおよびウレタン原料Uの供給を行なう供給部
23と、ウレタン原料Uを反応させて自体の形状を保持
し得る程度にキュアが進行した長尺棒状の発泡ウレタン
基材14を成形する基材成形部24とから構成されてい
る。すなわち、前記基材成形部24に向けて剥離シート
16を一定速度で連続的に繰出すと共に、前記剥離シー
ト16の上面にウレタン注出ヘッド25を介してウレタ
ン原料Uを供給することで、筒状に成形される剥離シー
ト16(シート筒状体18)の内側に、前記長尺棒状の発
泡ウレタン基材14を連続的に成形するようになってい
る。
The first molding process section 21 includes a release sheet 1
6 and a supply unit 23 for supplying the urethane raw material U, and a base material for forming a long-rod-shaped urethane foam base material 14 which has progressed to such an extent that the urethane raw material U is allowed to react to maintain its shape. And a molding section 24. That is, the release sheet 16 is continuously fed out at a constant speed toward the base material molding section 24, and the urethane raw material U is supplied to the upper surface of the release sheet 16 via the urethane pouring head 25, thereby forming a cylinder. The long rod-shaped urethane foam base material 14 is continuously molded inside the release sheet 16 (sheet cylindrical body 18) that is molded into a shape.

【0010】前記供給部23は、シート供給源26に巻
回された剥離シート16を基材成形部24へ向けて一定
速度で連続的に繰出すための繰出しローラ27と、前記
剥離シート16の上面へウレタン原料Uを連続的に注出
する前記ウレタン注出へッド25とを備えている。そし
て、前記繰出しローラ27によりシート供給源26から
連続的に繰出されて水平に走行する剥離シート16は、
該繰出しローラ27を通過する際は平面状を呈している
が、そのシート供給方向下流側に配設した基材成形部2
4の筒状ガイド部材28の内側を通過する際は、長手方
向の両端縁部17,17が合掌状に当接して筒状に成形
されてシート筒状体18をなすようになっている。な
お、繰出しローラ27の駆動による剥離シート16の送
出速度と、前記ウレタン注出ヘッド25からのウレタン
原料Uの時間単位注出量とを調整することで、前記基材
成形部24へのウレタン供給量が決定される。
The supply section 23 is a delivery roller 27 for continuously delivering the release sheet 16 wound around the sheet supply source 26 toward the base material molding section 24 at a constant speed, and the release sheet 16. The urethane pouring head 25 for pouring the urethane raw material U continuously is provided on the upper surface. Then, the release sheet 16 continuously fed from the sheet supply source 26 by the feeding roller 27 and traveling horizontally is
Although it has a flat shape when passing through the payout roller 27, the base material molding section 2 disposed on the downstream side in the sheet feeding direction thereof.
When passing through the inside of the tubular guide member 28 of No. 4, the two end edges 17, 17 in the longitudinal direction abut in a palm shape and are formed into a tubular shape to form a tubular sheet body 18. By adjusting the delivery speed of the release sheet 16 driven by the feeding roller 27 and the time unit amount of the urethane raw material U from the urethane pouring head 25, the urethane is supplied to the base material molding unit 24. The quantity is determined.

【0011】ここで、前記剥離シート16の上面へ注出
される直前の前記ウレタン原料Uは、例えばイソシアネ
ートとポリオールとからなる発泡体原料に不活性ガス等
の気体を混入して機械的に攪拌する所謂メカニカルフロ
ス法等により得られるものが使用される。メカニカルフ
ロス法によるウレタン原料Uは、予め微細に発泡させら
れた状態となっている。なお、メカニカルフロス法によ
り得られるウレタン原料Uに代えて、例えばイソシアネ
ートとポリオールとからなる発泡体原料に発泡剤が混入
され、未だ発泡していない状態になっているものを使用
するようにしてもよい。この後者の場合には、シート筒
状体18の開口部へ注出した後に、発泡反応が該筒状体
18中で進行することになる。
The urethane raw material U immediately before being poured onto the upper surface of the release sheet 16 is mechanically stirred by mixing a gas such as an inert gas into a foam raw material made of, for example, isocyanate and polyol. What is obtained by a so-called mechanical floss method or the like is used. The urethane raw material U made by the mechanical floss method is in a state of being finely foamed in advance. It should be noted that instead of the urethane raw material U obtained by the mechanical froth method, for example, a foam raw material made of, for example, isocyanate and polyol, in which a foaming agent is mixed and which is in a non-foamed state, may be used. Good. In the latter case, the bubbling reaction proceeds in the tubular body 18 after pouring out into the opening of the tubular body 18.

【0012】前記基材成形部24は、図2に示すよう
に、シート供給方向に沿って水平に延在させた所要長の
筒状ガイド部材28と、このガイド部材28の上方に配
設されて相互に対向する複数基のベルト状送り部材30
とから構成されている。筒状ガイド部材28は、前記発
泡ウレタン基材14の外部形状を画成するに必要なパイ
プ状の円筒体として構成され、その上壁面には剥離シー
ト16における長手方向の両端縁部17,17の通過を
許容する小幅のスリット29が形成されている。従って
前記供給部23から繰出された剥離シート16は、その
シート本体部分を筒状ガイド部材28の内側を通過させ
ると共に、該シート16における長手方向の両端縁部1
7,17を前記スリット29から外方へ合掌状に延出さ
せ、これにより前記シート筒状体18が成形されるよう
になっている。また、スリット29から外方へ合掌状に
延出する両端縁部17,17は、図4に示すように、対
向し合う前記ベルト状送り部材30,30のベルト31,
31により挟圧されてシート供給方向の下流側へ引張ら
れる。このベルト状送り部材30は、前記筒状ガイド部
材28に沿って所要間隔で複数基となるよう配設され、
図示しないモータ等の駆動装置により一定速度で駆動さ
れる。
As shown in FIG. 2, the base material molding section 24 is provided with a cylindrical guide member 28 of a required length which extends horizontally along the sheet feeding direction, and above the guide member 28. A plurality of belt-shaped feeding members 30 facing each other
It consists of and. The cylindrical guide member 28 is configured as a pipe-shaped cylindrical body required to define the external shape of the urethane foam base material 14, and has upper end wall surfaces thereof at both end edges 17, 17 in the longitudinal direction of the release sheet 16. A slit 29 having a small width is formed to allow the passage of. Therefore, the release sheet 16 delivered from the supply section 23 has its sheet main body portion pass through the inside of the tubular guide member 28, and both end edges 1 in the longitudinal direction of the sheet 16.
7 and 17 are outwardly extended from the slit 29 in a palm shape, whereby the sheet tubular body 18 is molded. Further, as shown in FIG. 4, the both end edge portions 17, 17 extending outward from the slit 29 in a palmar shape have the belts 31, 31 of the belt-shaped feeding members 30, 30 facing each other.
It is pinched by 31 and pulled downstream in the sheet feeding direction. A plurality of belt-shaped feed members 30 are arranged along the tubular guide member 28 at a required interval,
It is driven at a constant speed by a driving device such as a motor (not shown).

【0013】また筒状ガイド部材28の外側には、電熱
ヒータに代表される加熱部材32が装着され、これによ
り筒状ガイド部材28を適宜の温度に加熱してウレタン
原料Uの反応を促進するようになっている。従って、前
記ベルト状送り部材30,30の駆動により一定速度で
移動するシート筒状体18の内部のウレタン原料Uは、
該シート筒状体18が筒状ガイド部材28の下流側出口
に近づくにつれて反応が促進され、該シート筒状体18
の内部に、自体の形状を保持し得る程度にキュアが進行
した前記発泡ウレタン基材14が成形されるに至る。な
お、この時点における発泡ウレタン基材14は、シート
筒状体18を形成する前記剥離シート16を該基材14
の外面から剥がしても、その形状が崩れない状態となっ
ている。
A heating member 32 typified by an electric heater is mounted on the outer side of the tubular guide member 28, whereby the tubular guide member 28 is heated to an appropriate temperature to promote the reaction of the urethane raw material U. It is like this. Therefore, the urethane raw material U inside the sheet tubular body 18 that moves at a constant speed by driving the belt-shaped feed members 30, 30 is
As the sheet tubular body 18 approaches the downstream outlet of the tubular guide member 28, the reaction is promoted, and the sheet tubular body 18
The urethane foam base material 14 that has been cured to such an extent that the shape of the urethane foam base material 14 can be retained therein is formed inside. At this point, the urethane foam base material 14 includes the release sheet 16 that forms the sheet tubular body 18, and
Even if it is peeled off from the outer surface of the, its shape does not collapse.

【0014】前記剥離シート16は、少なくともウレタ
ン原料Uと接触する側に、例えばシリコン樹脂等の剥離
成分が塗布された紙シートまたは樹脂シートからなる。
これにより剥離シート16は、シート筒状体18の内側
で成形された発泡ウレタン基材14から容易に剥離し得
るようになっている。このような剥離シート16は、第
1成形工程部21で発泡ウレタン基材14を成形する際
に必要とされ、該発泡ウレタン基材14の成形完了後
(筒状ガイド部材28の通過後)には、発泡ウレタン基材
14から剥離されて前記筒状ガイド部材28の下流側に
設けたシート回収部33へ巻取回収される(図1)。
The release sheet 16 is composed of a paper sheet or a resin sheet coated with a release component such as a silicone resin on at least the side in contact with the urethane raw material U.
As a result, the release sheet 16 can be easily released from the urethane foam base material 14 formed inside the sheet tubular body 18. Such a release sheet 16 is required when the urethane foam base material 14 is molded in the first molding process section 21, and after the molding of the urethane foam base material 14 is completed.
After (passing through the tubular guide member 28), it is peeled from the urethane foam base material 14 and wound up and collected by the sheet collecting portion 33 provided on the downstream side of the cylindrical guide member 28 (FIG. 1).

【0015】第2成形工程部22は、前記第1成形工程
部21において成形された前記発泡ウレタン基材14を
巻回状にセットするための成形用治具35と、この成形
用治具35に巻回状にセットした発泡ウレタン基材14
を加熱する成形炉36から構成されている。このうち成
形用治具35は、図3に示すように、支持台37の水平
支持軸38に回転およびスライド移動可能に配設された
角筒体を呈しており、前記第1成形工程部21において
自体の形状を保持し得る程度までキュアが進行した状態
(キュアが終了していない状態)に成形された発泡ウレタ
ン基材14を、その外周面へ螺旋状に順次巻付けるよう
になっている。これにより前記ウレタン基材14は、そ
の長手方向の所要位置で順次屈曲しつつ矩形枠状に順次
変形している。
The second molding step section 22 is a molding jig 35 for setting the urethane foam base material 14 molded in the first molding step section 21 in a winding shape, and this molding jig 35. Foamed urethane base material 14 set in a roll
It is composed of a forming furnace 36 for heating the. Of these, as shown in FIG. 3, the molding jig 35 has a rectangular tubular shape that is rotatably and slidably arranged on a horizontal support shaft 38 of a support base 37. In the state where the curing has progressed to the extent that it can retain its own shape in
The urethane foam base material 14 formed in (the state where the curing is not completed) is wound around the outer peripheral surface in a spiral manner. As a result, the urethane base material 14 is sequentially bent at a required position in the longitudinal direction and sequentially deformed into a rectangular frame shape.

【0016】そして、前記成形用治具35へ螺旋状に巻
回セットされて長手方向の所要位置で屈曲的に変形させ
られた発泡ウレタン基材14は、図5に示すように、該
成形用治具35と共に所定の炉内温度に制御された成形
炉36に収容されてキュアが促進される。この成形炉3
6は、発熱ヒータ等からなる加熱部材39により炉内温
度が調整可能となっている。すなわち第2成形工程部2
2は、前記成形炉36内に収容した発泡ウレタン基材1
4を所定温度で所定時間に亘って連続的に加熱すること
で所謂「養生」させる工程であって、これにより成形用治
具35へ屈曲的に変形させながら巻回セットされた該発
泡ウレタン基材14はこの状態でキュアが終了するよう
になり、前記形状が定着された発泡ウレタン成形品15
が製造される。ここで、発泡ウレタン基材14のキュア
を行なうに際しては、発泡ウレタン基材14の屈曲部を
外側からサポートするサポート材40を装着しておくこ
とが望ましい。
Then, the urethane foam base material 14 which is spirally wound and set on the molding jig 35 and flexibly deformed at a predetermined position in the longitudinal direction is used for molding as shown in FIG. The jig 35 and the jig 35 are housed in a molding furnace 36 whose temperature is controlled to a predetermined temperature, and curing is promoted. This forming furnace 3
In 6, the temperature inside the furnace can be adjusted by a heating member 39 including a heating heater and the like. That is, the second molding process unit 2
2 is a urethane foam base material 1 housed in the molding furnace 36.
4 is a step of so-called "curing" by continuously heating 4 at a predetermined temperature for a predetermined time, whereby the urethane foam group wound and set on the molding jig 35 while being flexibly deformed. In this state, the material 14 is completely cured, and the urethane foam molded article 15 having the above-described shape is fixed.
Is manufactured. Here, when the urethane foam base material 14 is cured, it is desirable to mount the support material 40 that supports the bent portion of the urethane foam base material 14 from the outside.

【0017】なお実施例に示した前記成形用治具35
は、矩形枠状を呈する発泡ウレタン成形品15を製造す
るために角筒体状としたあくまで一例であって、この成
形用治具35の形状は発泡ウレタン成形品15の最終形
状に基いて適宜設定されるものである。
The molding jig 35 shown in the embodiment is used.
Is just an example of a rectangular tubular shape for manufacturing the urethane foam molded product 15 having a rectangular frame shape, and the shape of the molding jig 35 is appropriately determined based on the final shape of the urethane foam molded product 15. It is set.

【0018】次に、前述のように構成された製造ライン
20により実施される発泡ウレタン成形品の製造方法に
つき具体的に説明する。
Next, a method of manufacturing a urethane foam molded article, which is carried out by the manufacturing line 20 having the above-described structure, will be specifically described.

【0019】前記繰出しローラ27および前記各ベルト
状送り部材30を同期的に定速運転した状態において、
供給部23のシート供給源26から繰出した剥離シート
16を該繰出しローラ27に臨ませる。そして、繰出し
ローラ27を通過した剥離シート16をその両端縁部1
7,17を合掌状に当接してシート筒状体18を形成
し、該剥離シート16の本体部分を前記筒状ガイド部材
28の内側に通過させると共に、長手方向の両端縁部1
7,17を該筒状ガイド部材28のスリット29から合
掌状に延出させてベルト状送り部材30,30の間に臨
ませる。更に、筒状ガイド部材28の下流端から外方へ
引出されたシート筒状体18を、両端縁部17,17の
合掌状態から元の平面状態に開かせた後にシート回収部
33に順次巻取り回収させる。これにより、シート供給
源26から繰出された平面状の剥離シート16は、前記
ベルト状送り部材30,30による送り動作のもとで、
シート筒状体18に変形して筒状ガイド部材28を通過
した後、再び平面状に変形してシート回収部33へ回収
される。
In a state where the feeding roller 27 and the belt-shaped feeding members 30 are synchronously operated at a constant speed,
The release sheet 16 delivered from the sheet supply source 26 of the supply unit 23 is exposed to the delivery roller 27. Then, the release sheet 16 that has passed through the feeding roller 27 is provided with the edge portions 1 at both ends thereof.
7 and 17 are brought into contact with each other in the shape of a palm to form a sheet tubular body 18, the main body of the release sheet 16 is passed inside the tubular guide member 28, and both end edges 1 in the longitudinal direction are formed.
7 and 17 are made to extend from the slit 29 of the tubular guide member 28 in a palm shape and faced between the belt-shaped feed members 30 and 30. Further, the sheet tubular body 18 drawn outward from the downstream end of the tubular guide member 28 is opened from the gathered state of both edge portions 17 and 17 to the original flat state, and then sequentially wound around the sheet collecting section 33. Collect and collect. As a result, the flat release sheet 16 delivered from the sheet supply source 26 is fed by the belt-shaped feed members 30 and 30.
After being transformed into the sheet tubular body 18 and passing through the tubular guide member 28, it is again transformed into a planar shape and is collected by the sheet collecting unit 33.

【0020】剥離シート16が一定速度でかつ連続的に
繰出されている状態において、供給部23の上方に設置
した前記ウレタン注出ヘッド25からウレタン原料U
を、シート筒状体18へ変形する前の剥離シート16の
上面に注出する。このとき、ウレタン注出ヘッド25か
らウレタン原料Uを連続的に注出することにより、剥離
シート16の上面に該ウレタン原料Uが連続筋状に供給
される。
When the release sheet 16 is continuously fed at a constant speed, the urethane raw material U is fed from the urethane pouring head 25 installed above the supply section 23.
Is poured onto the upper surface of the release sheet 16 before being transformed into the sheet tubular body 18. At this time, by continuously pouring the urethane raw material U from the urethane pouring head 25, the urethane raw material U is continuously supplied to the upper surface of the release sheet 16 in a continuous streak shape.

【0021】ウレタン原料Uを上面に載せた剥離シート
16は、下流側へ移動するに従って該ウレタン原料Uを
内側に収容したシート筒状体18へ徐々に変形し、筒状
ガイド部材28内へ移動する。そして、筒状ガイド部材
28が前記加熱部材32で加熱されていることにより、
シート筒状体18内でのウレタン原料Uの反応が促進さ
れ、筒状ガイド部材28の下流端に近づいた適時には、
該シート筒状体18の内側に、自体の形状を保持し得る
程度にキュアが進行した発泡ウレタン基材14が連続的
に成形されるようになる。そして、筒状ガイド部材28
を通過して下流側へ到来する前記発泡ウレタン基材14
から、シート筒状体18を形成していた剥離シート16
が剥離されてシート回収部33へ順次回収されるので、
基材成形部24の下流側では発泡ウレタン基材14が順
次露出する。
The release sheet 16 on which the urethane raw material U is placed is gradually deformed into a sheet tubular body 18 containing the urethane raw material U inside and moved into the tubular guide member 28 as it moves downstream. To do. Then, since the tubular guide member 28 is heated by the heating member 32,
When the reaction of the urethane raw material U in the sheet tubular body 18 is promoted and the tubular guide member 28 approaches the downstream end,
The urethane foam base material 14, which has been cured to such an extent that it can maintain its shape, is continuously molded inside the sheet tubular body 18. Then, the tubular guide member 28
The urethane foam base material 14 that passes through and reaches the downstream side.
The release sheet 16 from which the sheet tubular body 18 was formed
Are peeled off and sequentially collected in the sheet collecting unit 33.
The urethane foam base material 14 is sequentially exposed on the downstream side of the base material molding portion 24.

【0022】第1成形工程部21で成形された発泡ウレ
タン基材14は、前記成形用治具35の外周面へ螺旋状
に順次巻付けセットされ、この際に長手方向の所要位置
で屈曲変形されて所要寸法の矩形枠状に変形する。そし
て、発泡ウレタン基材14を巻付けセットした成形用治
具35を、加熱部材39で所定温度に制御した前記成形
炉36内へ所定時間に亘って収容することで、発泡ウレ
タン基材14のキュアを終了させる。なお、発泡ウレタ
ン基材14を適切にキュアさせるための条件は、該基材
14の太さ・長さ等により変更されるものであるが、例
えば実施例の場合には炉内温度が60℃程度、加熱時間
が2時間以上とされる(但し、加熱時間は炉内温度によ
って変更され得る)。また、常温においてもキュアを終
了させることが可能ではあるが、キュアの終了に相当の
時間を要する。なお発泡ウレタン基材14のキュアを行
なうに際しては、前述したように、該基材14の屈曲部
に前記サポート材40を装着しておくことにより、発泡
ウレタン成形品15の成形精度を向上させ得る。
The urethane foam base material 14 molded in the first molding process section 21 is spirally wound and set around the outer peripheral surface of the molding jig 35, and at this time, it is bent and deformed at a required position in the longitudinal direction. Then, it is transformed into a rectangular frame having a required dimension. Then, the molding jig 35, on which the urethane foam base material 14 is wound and set, is housed in the molding furnace 36 whose temperature is controlled to a predetermined temperature by the heating member 39 for a predetermined time, whereby the urethane foam base material 14 Finish the cure. The conditions for properly curing the urethane foam base material 14 are changed depending on the thickness and length of the base material 14, but in the case of the example, the furnace temperature is 60 ° C. The heating time is about 2 hours or more (however, the heating time can be changed depending on the temperature in the furnace). Further, although it is possible to complete the cure even at room temperature, it takes a considerable time to complete the cure. When the urethane foam base material 14 is cured, as described above, by mounting the support material 40 on the bent portion of the base material 14, the molding accuracy of the urethane foam molding 15 can be improved. .

【0023】発泡ウレタン基材14をキュアさせること
で得られた前記発泡ウレタン成形品15は、成形用治具
35から取外した後、所要位置で切断することで矩形枠
状とされる。ここで、最終的に成形された発泡ウレタン
成形品15は、前記形状が定着しているので手を離して
も変形することはない。
The urethane foam molded article 15 obtained by curing the urethane foam base material 14 is removed from the molding jig 35 and then cut at a required position to form a rectangular frame shape. Here, since the shape of the urethane foam molded article 15 finally molded is fixed, the urethane foam molded article 15 does not deform even if the hand is released.

【0024】このように本実施例の発泡ウレタン成形品
の製造方法では、第1成形工程部21において、剥離シ
ート16からなるシート筒状体18の内側でウレタン原
料Uを反応させ、自体の形状を保持し得る程度にキュア
が進行した状態で連続的に成形される長尺棒状の発泡ウ
レタン基材14を、第2成形工程部22において、長手
方向の所要位置で変形させながら成形用治具35にセッ
トし、この状態でキュアを終了させることで前記形状が
定着された発泡ウレタン成形品15を好適に成形するこ
とが可能である。従って前記成形用治具35を、第1成
形工程部21で得られた発泡ウレタン基材14が所望と
する最終形状に変形させつつセットし得る形状に設定し
ておくことにより、第2成形工程部22で得られた発泡
ウレタン成形品15は所望の最終形状が定着された状態
に好適に形成され、成形作業の合理化に伴う成形コスト
低減を図り得る。また、実施例の製造方法により得られ
た発泡ウレタン成形品15は、成形された時点で既に所
望とする形状とされているから、取付作業の容易化およ
び合理化を図ることができ、種々の形状のパッキン材、
緩衝材およびシール材等として好適に実施することが可
能となる。
As described above, in the method for manufacturing the urethane foam molded article of the present embodiment, the urethane raw material U is reacted inside the sheet tubular body 18 made of the release sheet 16 in the first molding process section 21 to form the shape of itself. In the second molding step 22, the long rod-shaped urethane foam base material 14, which is continuously molded in a state in which the curing has progressed to such an extent that it can be held, is deformed at a required position in the longitudinal direction. It is possible to suitably mold the urethane foam molded product 15 in which the above-mentioned shape is fixed, by setting it to 35 and terminating the curing in this state. Therefore, by setting the molding jig 35 to a shape that can be set while deforming the urethane foam base material 14 obtained in the first molding step unit 21 into a desired final shape, the second molding step is performed. The urethane foam molded product 15 obtained in the part 22 is preferably formed in a state where the desired final shape is fixed, and the molding cost can be reduced with the rationalization of the molding work. Further, since the urethane foam molded article 15 obtained by the manufacturing method of the embodiment is already in a desired shape at the time of molding, it is possible to facilitate and rationalize the mounting work, and various shapes can be achieved. Packing material,
It can be suitably implemented as a cushioning material, a sealing material and the like.

【0025】そして前記成形用治具35の形態や形状を
変更することにより、様々な形態・形状の発泡ウレタン
成形品15を成形することが可能である。例えば成形用
治具35を円筒体とすれば、円形リング状の発泡ウレタ
ン成形品を成形することができる。また前記実施例で
は、成形用治具35に対して発泡ウレタン基材14を螺
旋状に連続的に巻付けることで同一形状の発泡ウレタン
成形品15を複数成形する形態を例示したが、例えば成
形用治具35に発泡ウレタン基材14を1回だけ巻付け
て発泡ウレタン成形品15を1つずつ成形する形態とし
てもよい。
By changing the form and shape of the molding jig 35, it is possible to mold urethane foam molded products 15 of various forms and shapes. For example, if the molding jig 35 is a cylindrical body, a circular ring-shaped urethane foam molded product can be molded. Further, in the above-described embodiment, the form in which the urethane foam base material 14 is continuously wound spirally around the molding jig 35 to form a plurality of urethane foam molded products 15 of the same shape is exemplified. The urethane foam base material 14 may be wound around the jig 35 only once to mold the urethane foam molded articles 15 one by one.

【0026】また枠形状(リング形状)ではなく、図6に
示すように、適宜部位に屈曲部42を有する所要長で棒
状を呈する発泡ウレタン成形品15を成形する場合は、
凸部44を有する第1成形板43と凹部46を有する第
2成形板45とから構成された成形用治具35が使用さ
れる。すなわち、第1成形工程部21において得られた
発泡ウレタン基材14を所要長に切断した後に、前記成
形用治具35で所要形状に変形させながらキュアを終了
させることで、前記屈曲部42を有する所要形状の定着
がなされた発泡ウレタン成形品15を製造し得る。
In the case of molding a urethane foam molded article 15 in the shape of a rod with a required length having a bent portion 42 at an appropriate portion, as shown in FIG. 6, instead of the frame shape (ring shape),
A molding jig 35 including a first molding plate 43 having a convex portion 44 and a second molding plate 45 having a concave portion 46 is used. That is, after the urethane foam base material 14 obtained in the first molding process section 21 is cut into a required length, the curing is finished while being deformed into a required shape by the molding jig 35, so that the bent portion 42 is removed. It is possible to manufacture the urethane foam molded article 15 in which the required shape is fixed.

【0027】更に前記実施例では、基材成形部24にお
ける筒状ガイド部材28の内側を断面円形状とすること
で、断面円形の発泡ウレタン基材14および発泡ウレタ
ン成形品15を成形する場合を例示したが、前記筒状ガ
イド部材28の内側断面形状を半円形、楕円形、矩形等
に変更することにより、これに基いた断面形状の発泡ウ
レタン基材14および発泡ウレタン成形品15を成形す
ることが可能となる。
Further, in the above-mentioned embodiment, the case where the urethane foam base material 14 and the urethane foam molded product 15 having a circular cross section are molded by making the inside of the cylindrical guide member 28 in the base material molding portion 24 into a circular cross section. Although illustrated, by changing the inner cross-sectional shape of the tubular guide member 28 to a semicircular shape, an elliptical shape, a rectangular shape, etc., the urethane foam base material 14 and the urethane foam molded article 15 having a cross-sectional shape based on this are molded. It becomes possible.

【0028】また、本願の発泡ウレタン成形品の製造方
法による得られる発泡ウレタン成形品の使用用途は、前
述したパッキン材に限定されるものではなく、例えば緩
衝材やシール材等、様々な用途で使用可能である。
The usage of the urethane foam molded product obtained by the method for manufacturing a urethane foam molded product of the present application is not limited to the packing material described above, and various uses such as a cushioning material and a sealing material are possible. It can be used.

【0029】[0029]

【発明の効果】以上説明した如く、本発明に係る発泡ウ
レタン成形品の製造方法によれば、剥離シートからなる
シート筒状体の内側でウレタン原料の反応を促進させ
て、自体の形状を保持し得る程度にキュアが進行した状
態で連続的に得られる長尺棒状の発泡ウレタン基材を、
該基材がキュアする前に長手方向の所要位置で変形させ
ながら成形用治具にセットし、この状態で該発泡ウレタ
ン基材のキュアを終了させることにより、前記形状が定
着された発泡ウレタン成形品を好適に製造し得る有益な
効果を奏する。従って、前記成形用治具の形状・形態の
設定により、種々の形状・形態を有する発泡ウレタン成
形品を効率的に製造できるから、成形コスト低減や取付
作業容易化等を好適に図り得る。更には、前記成形用治
具の形状・形態により、同一形状の発泡ウレタン成形品
を複数個同時に成形したり、所要長の発泡ウレタン成形
品を1つずつ成形すること等が可能となる。
As described above, according to the method for producing a urethane foam molded article according to the present invention, the reaction of the urethane raw material is promoted inside the sheet cylindrical body made of the release sheet to maintain the shape of itself. A long rod-shaped urethane foam base material that is continuously obtained in a state where curing has progressed to the extent that
Before the base material is cured, the base material is set on a molding jig while being deformed at a required position in the longitudinal direction, and the cure of the foamed urethane base material is terminated in this state to form the foamed urethane foam with the fixed shape. A beneficial effect that a product can be suitably manufactured is exhibited. Therefore, by setting the shape and form of the molding jig, urethane foam molded products having various shapes and forms can be efficiently manufactured, and thus the molding cost can be reduced and the mounting work can be facilitated. Further, depending on the shape and form of the molding jig, a plurality of urethane foam molded products having the same shape can be molded at the same time, or urethane foam molded products of a required length can be molded one by one.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る発泡ウレタン成形品の製造方法を
好適に実施し得る製造ラインの概略側面図である。
FIG. 1 is a schematic side view of a production line on which a method for producing a urethane foam molded article according to the present invention can be suitably implemented.

【図2】図1に示した製造ラインにおける第1成形工程
部を、自体の形状を保持し得る程度にキュアが進行した
発泡ウレタン基材を連続的に成形する状態で示す概略斜
視図である。
FIG. 2 is a schematic perspective view showing a first molding step in the production line shown in FIG. 1 in a state where a urethane foam base material that has been cured to such an extent that the shape thereof can be retained is continuously molded. .

【図3】図1に示した製造ラインにおける第2成形工程
部を、第1成形工程部において成形された発泡ウレタン
基材を成形用治具へ螺旋状に巻付ける状態で示す概略斜
視図である。
3 is a schematic perspective view showing a second molding step in the production line shown in FIG. 1 in a state in which the urethane foam base material molded in the first molding step is spirally wound around a molding jig. is there.

【図4】図1のIV−IV線断面図である。4 is a sectional view taken along line IV-IV in FIG.

【図5】成形用治具に巻付けセットした発泡ウレタン基
材のキュアを終了させることで、矩形枠状に形状が定着
された発泡ウレタン成形品を製造する状態を示す断面図
である。
FIG. 5 is a cross-sectional view showing a state where a urethane foam molded article having a fixed shape in a rectangular frame is manufactured by finishing the curing of the urethane foam base material wound and set on a molding jig.

【図6】所要長に切断した棒状の発泡ウレタン基材を成
形用治具により変形させつつキュアを終了させること
で、適宜部位に屈曲凹部を有する形状が定着した発泡ウ
レタン成形品を製造する状態を示す断面図である。
FIG. 6 shows a state in which a urethane foam molded article having a fixed concave portion at a proper portion is fixed by terminating curing while deforming a rod-shaped urethane foam base material cut into a required length by a molding jig. FIG.

【図7】乗用車のボデー開口部とドアとの接合ラインに
配設したパッキン材として実施された発泡ウレタン成形
品の一例を示す概略斜視図である。
FIG. 7 is a schematic perspective view showing an example of a urethane foam molded product implemented as a packing material arranged at a joining line between a body opening of a passenger car and a door.

【図8】発泡成形型を利用して発泡ウレタン基材を所要
形状に成形することで、図7に示したパッキン材とする
方法を説明するための概略斜視図である。
8 is a schematic perspective view for explaining a method of forming the packing material shown in FIG. 7 by molding a urethane foam base material into a required shape using a foam molding die.

【図9】所要長の略直線状に成形した複数の発泡ウレタ
ン基材を2次加工により接合することで、図7に示した
パッキン材とする方法を説明するための概略斜視図であ
る。
9 is a schematic perspective view for explaining a method of forming a packing material shown in FIG. 7 by joining a plurality of urethane foam base materials formed in a substantially linear shape having a required length by secondary processing.

【図10】直線状に成形した長尺の発泡ウレタン基材を
屈曲変形および湾曲変形させることで、図7に示したパ
ッキン材とする方法を説明するための正面図である。
10 is a front view for explaining a method of forming the packing material shown in FIG. 7 by bending and bending a long urethane foam base material formed in a linear shape.

【符号の説明】[Explanation of symbols]

14 発泡ウレタン基材 15 発泡ウレタン成形品 16 剥離シート 17 端縁部 18 シート筒状体 25 ウレタン注出ヘッド 26 シート供給源 28 筒状ガイド部材 29 スリット 35 成形用治具 U ウレタン原料 14 Urethane foam base material 15 Polyurethane foam molding 16 Release sheet 17 Edge 18-sheet cylinder 25 Urethane pouring head 26 sheet supply source 28 Cylindrical guide member 29 slits 35 Molding jig U Urethane raw material

───────────────────────────────────────────────────── フロントページの続き (72)発明者 酒井 賢太郎 愛知県安城市今池町3丁目1番36号 株式 会社イノアックコーポレーション安城事業 所内 Fターム(参考) 4F204 AA42 AG14 AG20 EA01 EB02 EF01 EF27 EK06 EK13 EK17 EL04 EW06 EW23    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kentaro Sakai             Aichi Prefecture Anjo City Imaikecho 3 1-336 Stock             Inoac Corporation Anjo Business             In-house F-term (reference) 4F204 AA42 AG14 AG20 EA01 EB02                       EF01 EF27 EK06 EK13 EK17                       EL04 EW06 EW23

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 シート供給源(26)から連続的に繰出され
た剥離シート(16)の本体上面にウレタン注出ヘッド(25)
からのウレタン原料(U)を連続的に注入し、 前記剥離シート(16)の本体部分を筒状ガイド部材(28)の
内側に通過させると共に、該剥離シート(16)の長手両端
縁部(17,17)を前記筒状ガイド部材(28)の長手方向に開
設したスリット(29)から合掌状に延出させてシート筒状
体(18)とし、 前記シート筒状体(18)が加熱した前記筒状ガイド部材(2
8)の内部を移動する過程で前記ウレタン原料(U)の反応
を促進させ、該シート筒状体(18)の内側に自体の形状を
保持し得る程度にキュアが進行した長尺棒状の発泡ウレ
タン基材(14)を連続的に成形し、 前記筒状ガイド部材(28)を通過して到来する前記発泡ウ
レタン基材(14)から、前記シート筒状体(18)を形成して
いた剥離シート(16)を剥離し、 前記剥離後の発泡ウレタン基材(14)を所要形状に変形さ
せながら成形用治具(35)にセットし、この状態で該発泡
ウレタン基材(14)のキュアを終了させることで前記形状
が定着された発泡ウレタン成形品(15)を製造するように
したことを特徴とする発泡ウレタン成形品の製造方法
1. A urethane pouring head (25) on an upper surface of a main body of a release sheet (16) continuously fed from a sheet supply source (26).
The urethane raw material (U) from (1) is continuously injected, and the main body of the release sheet (16) is passed inside the tubular guide member (28), and the longitudinal end edges of the release sheet (16) ( (17, 17) is formed into a sheet tubular body (18) by extending in a palm shape from a slit (29) opened in the longitudinal direction of the tubular guide member (28), and the sheet tubular body (18) is heated. The tubular guide member (2
8) Foam in the form of a long rod in which the reaction of the urethane raw material (U) is promoted in the process of moving inside, and the curing has progressed to such an extent that the shape of the sheet tubular body (18) can be retained inside. The urethane base material (14) was continuously molded, and the sheet tubular body (18) was formed from the urethane foam base material (14) coming through the tubular guide member (28). The release sheet (16) is peeled off, and the urethane foam base material (14) after peeling is set on a molding jig (35) while deforming it into a required shape, and in this state, the urethane foam base material (14) is A method for producing a urethane foam molded article, characterized in that a urethane foam molded article (15) in which the shape has been fixed is produced by terminating curing.
【請求項2】 自体の形状を保持し得る程度にキュアが
進行した前記発泡ウレタン基材(14)を、前記成形用治具
(35)の外周面へ螺旋状に順次巻付けて所要形状に変形さ
せながらキュアを終了させることで、前記形状の定着が
なされた前記発泡ウレタン成形品(15)を複数個同時に製
造し得る請求項1記載の発泡ウレタン成形品の製造方
法。
2. A jig for molding the urethane foam base material (14), which has been cured to such an extent that it can maintain its own shape.
A plurality of the urethane foam molded articles (15) having the shape fixed can be simultaneously produced by successively winding the spiral shape around the outer peripheral surface of (35) and terminating the curing while deforming the shape. Item 2. A method for producing a urethane foam molded article according to item 1.
【請求項3】 自体の形状を保持し得る程度にキュアが
進行した前記発泡ウレタン基材(14)を、所要長に切断し
た後に前記成形用治具(35)で所要形状に変形させながら
キュアを終了させることで、前記形状の定着がなされた
前記発泡ウレタン成形品(15)を製造し得る請求項1記載
の発泡ウレタン成形品の製造方法。
3. The urethane foam base material (14), which has been cured to such an extent that it can retain its own shape, is cut into a required length after being cut into a required length by the molding jig (35). The method for producing a urethane foam molded article according to claim 1, wherein the urethane foam molded article (15) in which the shape is fixed can be manufactured by terminating the step.
JP2001232795A 2001-07-31 2001-07-31 Manufacturing method of urethane foam moldings Expired - Fee Related JP4764569B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001232795A JP4764569B2 (en) 2001-07-31 2001-07-31 Manufacturing method of urethane foam moldings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001232795A JP4764569B2 (en) 2001-07-31 2001-07-31 Manufacturing method of urethane foam moldings

Publications (2)

Publication Number Publication Date
JP2003039446A true JP2003039446A (en) 2003-02-13
JP4764569B2 JP4764569B2 (en) 2011-09-07

Family

ID=19064658

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP4764569B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153580A (en) * 1974-11-06 1976-05-12 Akira Nakajima Purasuchitsukuno bo mataha kanomochiita uzumakijo mataha rasenjoseikeihinno seizosochi
JPS5153579A (en) * 1974-11-06 1976-05-12 Akira Nakajima Purasuchitsukuno bo mataha kanomochiita uzumakijo mataha rasenjoseikeihinno seizosochi
JP2001138342A (en) * 1999-11-12 2001-05-22 Inoac Corp Urethane foam material and method of manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153580A (en) * 1974-11-06 1976-05-12 Akira Nakajima Purasuchitsukuno bo mataha kanomochiita uzumakijo mataha rasenjoseikeihinno seizosochi
JPS5153579A (en) * 1974-11-06 1976-05-12 Akira Nakajima Purasuchitsukuno bo mataha kanomochiita uzumakijo mataha rasenjoseikeihinno seizosochi
JP2001138342A (en) * 1999-11-12 2001-05-22 Inoac Corp Urethane foam material and method of manufacturing the same

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