JPH09168678A - Cushion body for automotive seat and its production - Google Patents

Cushion body for automotive seat and its production

Info

Publication number
JPH09168678A
JPH09168678A JP7349352A JP34935295A JPH09168678A JP H09168678 A JPH09168678 A JP H09168678A JP 7349352 A JP7349352 A JP 7349352A JP 34935295 A JP34935295 A JP 34935295A JP H09168678 A JPH09168678 A JP H09168678A
Authority
JP
Japan
Prior art keywords
main body
soft
foam
cushion
soft portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7349352A
Other languages
Japanese (ja)
Inventor
Kazuhisa Ando
和久 安藤
Shiro Mizuno
史朗 水野
Satoru Hayashi
悟 林
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 JP7349352A priority Critical patent/JPH09168678A/en
Publication of JPH09168678A publication Critical patent/JPH09168678A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To make it possible to surely form parts softer than others in required positions by forming the soft parts of foams having skin layers on the surfaces and forming a main body part of a foam which is expansion molded on the main body part side surfaces of the soft parts and is adhered to the soft parts. SOLUTION: This cushion body 10 for an automotive seat is constituted by integrally forming the soft parts 12 sufficiently softer than the main body part 11 in the required parts of the surface of the main body part 11 formed to the prescribed seat cushion shape. The main body part 11 is formed of a foamed urethane resin to form the shape of the cushion body for the seat. The soft parts 12 are formed of the foams softer than the main body part 11 and skin layers 14 are formed on their surfaces. The soft parts 12 are disposed in the required parts of the surface of the main body part 11, i.e., the parts where the feel softer than the other parts of the cushion body 10 is imparted; for example, the central part of the back rest.

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】この発明は自動車座席用クッ
ション体およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile seat cushion body and a method for manufacturing the same.

【０００２】[0002]

【従来の技術】従来より自動車の座席用クッション体に
は、所定形状に形成された発泡体が多用されている。こ
の座席用クッション体は、所定形状のキャビティを有す
る発泡成形型内にウレタンなどの公知の発泡原料を注入
し、前記型内で発泡硬化させることにより得られる。と
ころで、前記クッション体において、その所定の位置、
たとえば人の背中または臀部が当たる部分などを他の部
分よりもソフトにして乗り心地を高めたものがある。こ
のソフト化の方法としては種々あるが、次の方法が一般
的である。2. Description of the Related Art Conventionally, a foamed body having a predetermined shape has been widely used as a cushion for a vehicle seat. This seat cushion body is obtained by injecting a known foaming raw material such as urethane into a foaming mold having a cavity of a predetermined shape, and foaming and curing in the mold. By the way, in the cushion body, its predetermined position,
For example, there is one in which a person's back or buttocks is softer than other parts to improve the riding comfort. There are various softening methods, but the following method is generally used.

【０００３】第一の方法は、図１２に示すように、ま
ず、ウレタン発泡体などからなる座席本体部５１におい
て、乗員の背中（または臀部）が当接する部分に凹部５
２を設けておく。そして、前記凹部５２に、座席本体部
５１よりも柔らかいウレタンスラブなどから所定形状に
裁断してなるソフト部用発泡体５３を嵌めて接着剤など
で固着する方法である。In the first method, as shown in FIG. 12, first, in the seat body 51 made of urethane foam or the like, the recess 5 is formed at the portion where the back (or buttocks) of the occupant abuts.
2 is provided. Then, a soft part foam 53, which is cut into a predetermined shape from a urethane slab that is softer than the seat body 51, is fitted into the recess 52 and fixed with an adhesive or the like.

【０００４】また、第二の方法は、図１３に示すよう
に、あらかじめ発泡成形型６０の下型６１内の所定位置
に、前記ウレタンスラブを裁断してなるソフト部用発泡
体５３を配置し、このソフト部用発泡体５３の上面に座
席本体部を形成する発泡原料を注入して、前記発泡成形
型６０内で発泡硬化させ、前記ソフト部用発泡体５３と
一体になった座席本体部５１を形成する方法である。図
中の符号６２は、前記ソフト部用発泡体５３が型内で位
置ずれを生じないようにするための仕切りである。In the second method, as shown in FIG. 13, a soft part foam 53 formed by cutting the urethane slab is arranged at a predetermined position in the lower mold 61 of the foam mold 60 in advance. A foaming raw material forming a seat body is injected onto the upper surface of the soft part foam 53, and foamed and hardened in the foaming mold 60 to be integrated with the soft part foam 53. This is a method of forming 51. Reference numeral 62 in the drawing is a partition for preventing the soft foam 53 from being displaced in the mold.

【０００５】さらに図示は省略するが、第三の方法とし
て、発泡成形型内に低比重のウレタン原料を注入した
後、その上に高比重のウレタン原料を注入して、両原料
を発泡硬化させることにより、ソフト部と座席本体部と
からなる自動車座席用クッション体を得る方法もある。Although not shown, as a third method, a urethane raw material having a low specific gravity is injected into the foaming mold and then a urethane raw material having a high specific gravity is injected thereon to foam and cure both raw materials. Accordingly, there is also a method of obtaining a cushion body for an automobile seat, which includes a soft portion and a seat body portion.

【０００６】しかしながら、第一の方法では、接着剤の
塗りムラなどがあると、接着したウレタンスラブが座席
本体部からはがれるおそれがある。また、接着剤を塗布
する工程およびそのための装置が必要で、かかるクッシ
ョン体の効率的および経済的な製造が困難であった。し
かも接着剤の使用による作業環境悪化の問題もあった。However, in the first method, if there is uneven coating of the adhesive, the adhered urethane slab may peel off from the seat body. Further, a step of applying an adhesive and an apparatus therefor are required, which makes it difficult to manufacture such a cushion body efficiently and economically. Moreover, there is a problem that the working environment is deteriorated due to the use of the adhesive.

【０００７】また、第二の方法では、型内に配置したウ
レタンスラブの表面に本体部の発泡原料が含浸して硬化
するため、得られたクッション体にもたれた時あるいは
座った時に底付き感を生じ、乗り心地を悪くするという
問題がある。In the second method, the surface of the urethane slab arranged in the mold is impregnated with the foaming raw material of the main body and hardened, so that when the obtained cushion body leans or sits down, a feeling of bottoming is felt. There is a problem of causing a bad ride quality.

【０００８】さらに、第三の方法では、発泡成形型内に
注入された低比重のウレタン原料と高比重のウレタン原
料とが型内で混ざり合うことがあり、得られるクッショ
ン体の硬度がばらついて、所定の位置に所望の硬さおよ
び柔らかさを持つクッション体を得にくいという問題が
ある。Further, in the third method, the urethane raw material having a low specific gravity and the urethane raw material having a high specific gravity injected into the foaming mold may be mixed in the mold, and the hardness of the obtained cushion body varies. However, there is a problem that it is difficult to obtain a cushion body having desired hardness and softness at a predetermined position.

【０００９】[0009]

【発明が解決しようとする課題】本発明はこのような問
題点に鑑み提案されたものであって、所要の位置に他よ
りソフトな部分が確実に形成された自動車座席用クッシ
ョン体、および前記クッション体を簡単かつ精度よく得
るための製造方法を提供する。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and has an automobile seat cushion body in which a softer portion than other portions is surely formed at a required position, and the above-mentioned. Provided is a manufacturing method for easily and accurately obtaining a cushion body.

【００１０】[0010]

【課題を解決するための手段】すなわち、本発明の自動
車座席用クッション体は、本体部の表面所要部に該本体
部より柔らかいソフト部が形成された自動車座席用クッ
ション体において、前記ソフト部は表面にスキン層を有
する発泡体からなり、一方、前記本体部は前記ソフト部
の本体部側表面で発泡成形されて前記ソフト部と接着し
た発泡体からなることを特徴とする。That is, a cushioning body for an automobile seat according to the present invention is a cushioning body for an automobile seat, wherein a soft portion softer than the main body portion is formed on a required surface portion of the main body portion. It is characterized in that it is made of a foam having a skin layer on the surface thereof, while the main body is made of a foam that is foam-molded on the main body side surface of the soft part and adheres to the soft part.

【００１１】また、本発明の自動車座席用クッション体
の製造方法は、本体部の表面所要部に該本体部より柔ら
かいソフト部が形成された自動車座席用クッション体を
製造するに際し、表面にスキン層を有する発泡体からな
る前記ソフト部を成形型内に配置した後、前記ソフト部
上に前記本体部用の発泡原料を注入し発泡させることに
より、前記ソフト部と接着した本体部を形成することを
特徴とする。In the method of manufacturing a cushion body for an automobile seat according to the present invention, a skin layer is formed on a surface of the cushion body for an automobile seat, in which a soft portion softer than the main body portion is formed on a required surface portion of the main body portion. After forming the soft part made of a foam having in the mold, by injecting a foaming raw material for the main part onto the soft part and foaming, to form a main part bonded to the soft part. Is characterized by.

【００１２】[0012]

【発明の実施の形態】以下添付の図面に従ってこの発明
を詳細に説明する。図１はこの発明の自動車座席用クッ
ション体の一例を示す斜視図、図２はその断面図、図３
は本発明のクッション体の他の例を示す断面図、図４は
その要部の拡大断面図、図５はソフト部を成形する発泡
成形型の一例を示す断面図、図６は得られたソフト部の
斜視図、図７はその要部の断面図、図８ないし図１１は
本発明の製造方法を示すもので、図８はソフト部を成形
型内に配置する工程を示す斜視図、図９はソフト部上に
本体部用発泡原料を注入する工程を示す断面図、図１０
は発泡成形工程を示す断面図、図１１はその要部を拡大
して示す断面図である。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of an automobile seat cushion body of the present invention, FIG. 2 is a sectional view thereof, and FIG.
Is a cross-sectional view showing another example of the cushion body of the present invention, FIG. 4 is an enlarged cross-sectional view of an essential part thereof, FIG. 5 is a cross-sectional view showing an example of a foaming mold for molding a soft part, and FIG. 6 is obtained. FIG. 7 is a perspective view of the soft portion, FIG. 7 is a cross-sectional view of a main portion thereof, and FIGS. 8 to 11 show a manufacturing method of the present invention. FIG. 8 is a perspective view showing a step of arranging the soft portion in a molding die. FIG. 9 is a cross-sectional view showing the step of injecting the foaming raw material for the main body onto the soft portion, FIG.
FIG. 11 is a cross-sectional view showing a foam molding process, and FIG. 11 is a cross-sectional view showing an enlarged main part thereof.

【００１３】図１および図２に示すように、本発明の自
動車座席用クッション体１０は、所定の座席クッション
形状に形成された本体部１１の表面所要部に、本体部１
１よりも柔らかいソフト部１２が一体に形成されてい
る。なお、本発明の自動車座席用クッション体および、
後に示すその製造方法のいずれも、背もたれ用と座部用
の両者に適用されるものであるが、以下の実施例におい
ては、背もたれ用のクッション体について示す。As shown in FIGS. 1 and 2, an automobile seat cushion body 10 of the present invention has a main body portion 1 formed at a required surface portion of a main body portion 11 formed in a predetermined seat cushion shape.
A soft portion 12 that is softer than 1 is integrally formed. The cushion body for a car seat of the present invention,
Although any of the manufacturing methods described below is applied to both the backrest and the seat portion, the cushion body for the backrest will be described in the following examples.

【００１４】本体部１１は発泡ウレタン樹脂よりなり、
所定の座席用クッション体の形状に形成されている。ま
た、ソフト部１２は前記本体部１１よりも柔らかな発泡
体１３よりなり、図２から理解されるように、表面にス
キン層１４を有している。このソフト部１２が設けられ
る本体部１１の表面所要部とは、クッション体１０にお
いて他の部分よりもソフト感を付与したい部分であっ
て、本実施例では座席背もたれ中央部分である。The main body 11 is made of urethane foam resin,
It is formed into a predetermined seat cushion shape. Further, the soft portion 12 is made of a foamed body 13 which is softer than the main body portion 11, and has a skin layer 14 on the surface as understood from FIG. The surface-required portion of the main body portion 11 on which the soft portion 12 is provided is a portion of the cushion body 10 where it is desired to give a softer feeling than other portions, and in the present embodiment is the central portion of the seat back.

【００１５】このソフト部１２は、前記本体部１１を該
ソフト部１２の表面で発泡成形させることにより、その
発泡時に生じる接着性でもって前記本体部１１の表面に
一体に接着されている。本実施例において前記ソフト部
１２を構成する発泡体１３は、本体部１１との接着性を
考慮して、当該本体部１１と同種の発泡ウレタン樹脂を
用い、密度などを適宜に調整して前記本体部１１よりも
柔らかくしている。The soft portion 12 is integrally bonded to the surface of the main body portion 11 by the foaming of the main body portion 11 on the surface of the soft portion 12 with the adhesiveness generated during the foaming. In the present embodiment, the foam 13 constituting the soft part 12 is made of urethane foam resin of the same kind as the main body 11 in consideration of adhesiveness to the main body 11, and the density and the like are appropriately adjusted to be the above-mentioned. It is made softer than the main body 11.

【００１６】前記スキン層１４は、前記発泡体１３の表
面に薄膜状に形成されており、ソフト部１２の表面で本
体部１１を発泡成形させた際に、その発泡原料が発泡体
１３内に含浸するのを防ぐ。このスキン層１４は、ソフ
ト部１２の発泡体１３を発泡成形する際に、その発泡原
料が型面に接触して冷え、該発泡原料の発泡反応が不充
分となることにより形成されると考えられており、発泡
成形型を加熱するホットキュアタイプの発泡成形により
容易に得られることが知られている。The skin layer 14 is formed as a thin film on the surface of the foam body 13. When the body portion 11 is foam-molded on the surface of the soft portion 12, the foaming raw material is inside the foam body 13. Prevent impregnation. It is considered that the skin layer 14 is formed when the foaming material of the soft portion 12 is foam-molded and the foaming raw material comes into contact with the mold surface to cool and the foaming reaction of the foaming raw material becomes insufficient. It is known that it can be easily obtained by hot cure type foam molding in which a foam mold is heated.

【００１７】前記本体部１１とソフト部１２とは、本体
部１１の発泡成形時に生じる接着性により接合している
が、より強固な接合を必要とする場合には、請求項２に
示す構造とすることが望ましい。図３およびその要部を
拡大した図４にその構造を示す。符号２０はクッション
体、２１は本体部、２２はソフト部、２４はスキン層で
ある。このクッション体２０は、ソフト部２２の本体部
２１側表面に嵌合孔２５が設けられている。一方、前記
本体部２１のソフト部２２側表面には、前記嵌合孔２５
に嵌合する嵌合突起２６を有している。前記嵌合孔２５
は、図４のように、内端が拡大した形状に形成され、一
方、前記嵌合突起２６は先端が拡大した形状に形成され
ていて、嵌合孔２５と嵌合突起２６が嵌合した際に外れ
難いようになっている。この嵌合突起２６は、前記本体
部２１をソフト部２２の本体部側で発泡成形するに際
し、その発泡原料が嵌合孔２５内に入って発泡硬化し嵌
合形状の突起を形成したものである。なお、前記嵌合孔
２５および嵌合突起２６の数ならびに位置に制限はな
く、ソフト部２２の本体部側表面に複数適当に設ければ
よい。The main body portion 11 and the soft portion 12 are joined by the adhesiveness generated during the foam molding of the main body portion 11. However, when a stronger joint is required, the structure shown in claim 2 is used. It is desirable to do. Its structure is shown in FIG. 3 and FIG. Reference numeral 20 is a cushion body, 21 is a main body portion, 22 is a soft portion, and 24 is a skin layer. In the cushion body 20, a fitting hole 25 is provided on the surface of the soft portion 22 on the side of the main body portion 21. On the other hand, the fitting hole 25 is formed on the surface of the body portion 21 on the soft portion 22 side.
It has a fitting protrusion 26 that fits in the. The fitting hole 25
4, the inner end is formed to have an enlarged shape, while the fitting protrusion 26 is formed to have an enlarged tip, so that the fitting hole 25 and the fitting protrusion 26 are fitted to each other. It is hard to come off. The fitting protrusion 26 is formed by forming a fitting-shaped protrusion by foaming and hardening the foaming raw material in the fitting hole 25 when foaming the main body 21 on the main body side of the soft part 22. is there. The number and position of the fitting holes 25 and the fitting projections 26 are not limited, and a plurality of fitting holes 25 and fitting projections may be appropriately provided on the surface of the soft portion 22 on the main body side.

【００１８】前記構造の自動車座席用クッション体１０
によれば、本体部１１表面の所要部、たとえば人の背中
などが当たる部分には、本体部１１よりも柔らかいソフ
ト部１２が形成されているため、乗り心地が良好であ
る。しかも、前記ソフト部１２は、表面にスキン層１４
を有する発泡体よりなるため、前記本体部１１をソフト
部１２の表面で発泡成形させてクッション体１０を得る
際に、その発泡原料がスキン層１４に阻まれてソフト部
１２内に含浸することがない。したがって、ソフト部１
２と本体部１１との境界部に前記含浸により硬化した層
を生じず、クッション体使用時にその硬い層に当たって
底付き感を受けるおそれがない。Cushion body 10 for automobile seats having the above structure
According to the above, since the soft portion 12 that is softer than the main body portion 11 is formed in a required portion of the surface of the main body portion 11, for example, a portion that a person's back or the like contacts, the ride comfort is good. Moreover, the soft portion 12 has a skin layer 14 on the surface.
When the main body 11 is foam-molded on the surface of the soft portion 12 to obtain the cushion body 10, the foaming raw material is blocked by the skin layer 14 and impregnated into the soft portion 12. There is no. Therefore, soft part 1
A layer hardened by the impregnation does not occur at the boundary between 2 and the main body 11, and there is no risk of hitting the hard layer when the cushion body is used and feeling a bottom.

【００１９】さらに、図３および図４を用いて説明した
ように、本体部２１とソフト部２２とを、前記本体部２
１の発泡成形時における接着に加え、互いに嵌合する嵌
合孔２５および嵌合突起２６を介して接合させれば、前
記本体部２１とソフト部２２とをより強固に接合させる
ことができる。Further, as described with reference to FIGS. 3 and 4, the main body portion 21 and the soft portion 22 are connected to the main body portion 2.
In addition to the bonding during foam molding of No. 1, the main body portion 21 and the soft portion 22 can be joined more firmly by joining them through the fitting holes 25 and the fitting projections 26 that fit with each other.

【００２０】次に、本発明の製造方法を、前記嵌合孔２
５と嵌合突起２６とが嵌合しているクッション体２０を
製造する場合について説明する。まず、座席用クッショ
ン体の製造に先立ち、ソフト部を成形する。図５にその
発泡成形型３０を示す。この発泡成形型３０は、蓋型３
１と下型３２との間に、ソフト部の外形状を規定するキ
ャビティ３３を有している。この発泡成形型３０は、図
３および図４に示したソフト部２２を成形するためのも
ので、蓋型３１の型面所定位置には前記嵌合孔２５のた
めの先端が拡大した突起部３４が形成されている。Next, the manufacturing method of the present invention is applied to the fitting hole 2
A case of manufacturing the cushion body 20 in which 5 and the fitting protrusion 26 are fitted to each other will be described. First, the soft part is formed prior to manufacturing the seat cushion body. FIG. 5 shows the foaming mold 30. The foam mold 30 is a lid mold 3.
A cavity 33 that defines the outer shape of the soft portion is provided between 1 and the lower mold 32. The foam molding die 30 is for molding the soft portion 22 shown in FIGS. 3 and 4, and a projection portion having an enlarged tip for the fitting hole 25 is provided at a predetermined position on the die surface of the lid die 31. 34 is formed.

【００２１】そして、前記発泡成形型３０のキャビティ
３３内に軟質ウレタンフォーム原料Ｐ１を注入し、前記
キャビティ３３内で発泡反応させることにより、図６お
よび図７に示すような、所定形状の発泡体２３よりなる
ソフト部２２を成形する。そのソフト部２２の表面に
は、前記軟質ウレタンフォーム原料Ｐ１が、その反応時
に型面と接触して冷やされたことによる薄膜状のスキン
層２４が形成されている。また、本体部側表面となるソ
フト部の表面には、内端が拡大した嵌合孔２５が形成さ
れている。Then, the soft urethane foam raw material P1 is injected into the cavity 33 of the foaming mold 30, and the foaming reaction is carried out in the cavity 33, whereby a foam having a predetermined shape as shown in FIG. 6 and FIG. The soft portion 22 composed of 23 is molded. On the surface of the soft portion 22, a thin film skin layer 24 is formed by cooling the soft urethane foam raw material P1 by contact with the mold surface during the reaction. Further, a fitting hole 25 having an enlarged inner end is formed on the surface of the soft portion which is the surface of the main body portion side.

【００２２】なお、前記蓋型３１の突起部３４は、ソフ
ト部２２に対してアンダーカットを構成するが、ソフト
部２２が弾性を有するため、ソフト部２２を蓋型３１か
ら引っ張れば、ソフト部２２の嵌合孔２５部分が弾性変
形して突起部３４から外れ、蓋型３１からソフト部２２
を離すことができる。The projecting portion 34 of the lid mold 31 constitutes an undercut with respect to the soft portion 22. However, since the soft portion 22 has elasticity, if the soft portion 22 is pulled from the lid die 31, the soft portion 22 is pulled. The fitting hole 25 portion of 22 is elastically deformed and comes off from the protrusion 34, and the lid portion 31 moves to the soft portion 22.
Can be released.

【００２３】続いて、前記ソフト部２２に本体部２１を
一体に形成する。図８に示すように、クッション体のた
めの発泡成形型４０の下型４１に、先に成形したソフト
部２２が配置される。前記下型４１は、座席の背もたれ
形状に形成されたキャビティ４２を有し、その型面の所
要部には配置部４３が設けられている。前記配置部４３
はソフト部２２を精度よく配置するためのもので、発泡
原料の注入および発泡の際などに前記ソフト部２２が動
かないように、前記ソフト部２２の形状に合わせた枠４
４が設けられている。本実施例において、前記配置部４
３は、座席背もたれ部分の上部と下部に相当する前記型
面の左側と右側に一つづつ設けられている。前記ソフト
部２２は、前記嵌合孔２５をキャビティ内側（蓋型側）
方向に向けて、前記配置部４３にそれぞれ配置される。Subsequently, the main body portion 21 is integrally formed with the soft portion 22. As shown in FIG. 8, the soft part 22 molded previously is arranged in the lower mold 41 of the foam molding mold 40 for the cushion body. The lower mold 41 has a cavity 42 formed in the shape of a backrest of a seat, and an arrangement portion 43 is provided at a required portion of the mold surface. The arrangement section 43
Is for arranging the soft portion 22 with high precision, and the frame 4 conforming to the shape of the soft portion 22 is provided so that the soft portion 22 does not move when the foaming raw material is injected and foamed.
4 are provided. In this embodiment, the arrangement part 4
One 3 is provided on the left side and the other is on the right side of the mold surface corresponding to the upper part and the lower part of the seat back portion. The soft portion 22 has the fitting hole 25 inside the cavity (on the lid side).
Each of them is arranged in the arrangement portion 43 in the direction.

【００２４】このようにして、あらかじめ型面の所定位
置に配置されたソフト部２２上に、図９に示すように、
発泡原料Ｐ２を注入し、図１０に示すように発泡成形型
の蓋型４５により型閉めする。この発泡原料Ｐ２は、座
席用クッション体の本体部２１を成形するためのもの
で、前記ソフト部２２よりも硬い発泡体となるものが用
いられる。注入された発泡原料Ｐ２は前記キャビティ４
２内で発泡硬化し、前記ソフト部２２の上面に本体部２
１を形成する。その際、図１１からよく理解されるよう
に、前記発泡原料Ｐ２は、前記ソフト部２２の本体部側
表面に形成された嵌合孔２５内にも充填され、該嵌合孔
２５内で発泡して嵌合突起２６を形成する。また、前記
発泡原料Ｐ２の発泡時に生じる接着性によってソフト部
２２と本体部２１が接着される。したがって、前記ソフ
ト部２２と本体部２１は、前記本体部２１成形時の接着
に加えて嵌合孔２５と嵌合突起２６とが嵌合するため、
接着剤を使用しなくても強固に接合される。In this way, as shown in FIG. 9, on the soft portion 22 previously arranged at a predetermined position on the mold surface,
The foaming raw material P2 is injected, and the mold is closed by the lid mold 45 of the foaming mold as shown in FIG. The foaming raw material P2 is used to mold the main body portion 21 of the seat cushion body, and a foaming material that is harder than the soft portion 22 is used. The injected foaming material P2 is stored in the cavity 4
2 is foamed and hardened in the main body portion 2 on the upper surface of the soft portion 22.
Form one. At that time, as well understood from FIG. 11, the foaming raw material P2 is also filled in the fitting hole 25 formed in the main body side surface of the soft portion 22, and foamed in the fitting hole 25. Then, the fitting protrusion 26 is formed. Further, the soft portion 22 and the main body portion 21 are adhered to each other by the adhesiveness generated when the foaming raw material P2 is foamed. Therefore, the soft portion 22 and the main body portion 21 are fitted together by the fitting hole 25 and the fitting protrusion 26 in addition to the bonding when the main body portion 21 is molded.
Bonds firmly without using an adhesive.

【００２５】また、前記ソフト部２１の表面にはスキン
層２４が形成されているので、本体部２１成形の際に発
泡原料Ｐ２がソフト部２２内に含浸することもなく、ソ
フト部２２と本体部２１との境界部に前記発泡原料Ｐ２
の含浸硬化層が形成されず、クッション体使用時に前記
含浸硬化層による底付き感の発生のおそれがない。Further, since the skin layer 24 is formed on the surface of the soft portion 21, the foaming raw material P2 does not impregnate the soft portion 22 during the molding of the main body portion 21, and the soft portion 22 and the main body are prevented. The foaming raw material P2 is provided at the boundary with the portion 21.
The impregnated cured layer is not formed, and there is no possibility that a bottoming feeling is generated by the impregnated cured layer when the cushion body is used.

【００２６】なお、前記嵌合孔と嵌合突起のない、図１
および図２に示したクッション体１０を製造する際は、
図５に示したソフト部成形用の発泡成形型３０に代え、
その蓋型３１の突起部３４を無くした発泡成形型（図示
せず）を用いて、まず図２に示したソフト部１２を成形
する。そして、前記ソフト部１２を、図８ないし図１１
で説明した工程においてソフト部２２の代わりに用いれ
ばよい。これによって得られるクッション体１０も、ソ
フト部１２と本体部１１が、その本体部１１の発泡成形
時に生じる接着性によって接合しており、接着剤を用い
て接合させる必要がない。しかも、ソフト部１２の表面
にはスキン層１４が形成されているので、本体部１１の
ための発泡原料がソフト部１２内に含浸することがな
く、クッション体１０使用時に底付き感を生じる恐れも
ない。It should be noted that the fitting hole and the fitting protrusion are not provided in FIG.
And when manufacturing the cushion body 10 shown in FIG.
Instead of the foam molding die 30 for molding the soft portion shown in FIG. 5,
First, the soft part 12 shown in FIG. 2 is molded using a foam molding die (not shown) in which the protrusion 34 of the lid mold 31 is eliminated. Then, the soft part 12 is replaced with the one shown in FIGS.
It may be used instead of the soft part 22 in the process described in the above. Also in the cushion body 10 obtained by this, the soft portion 12 and the main body portion 11 are joined by the adhesiveness generated during the foam molding of the main body portion 11, and it is not necessary to join them by using an adhesive. Moreover, since the skin layer 14 is formed on the surface of the soft portion 12, the foaming raw material for the main body portion 11 does not impregnate the soft portion 12 and a feeling of bottoming may occur when the cushion body 10 is used. Nor.

【００２７】[0027]

【発明の効果】以上図示し説明したように、この発明の
自動車座席用クッション体によれば、本体部の成形の際
にその発泡原料がソフト部内に含浸することがなく、使
用時に底付き感の発生を防ぎ快適な乗り心地を得ること
ができる。しかも、接着剤を用いることなく本体部とソ
フト部とが接合されているため、接着剤の塗布ムラによ
るソフト部の剥がれがない。また、請求項２に示される
クッション体にあっては、本体部とソフト部の接合が、
本体部の発泡成形時における接着に加えて、本体部とソ
フト部との嵌合によってもなされているため、ソフト部
と本体部がより強固に結合される。As shown and described above, according to the cushion member for an automobile seat of the present invention, the foaming raw material does not impregnate the soft portion during the molding of the main body portion, and the feeling of bottoming during use is obtained. It is possible to prevent the occurrence of a ride and obtain a comfortable ride. Moreover, since the main body portion and the soft portion are joined without using an adhesive, the soft portion is not peeled off due to uneven application of the adhesive. Further, in the cushion body according to claim 2, the main body portion and the soft portion are joined together,
In addition to the bonding of the main body portion during foam molding, the main body portion and the soft portion are fitted together, so that the soft portion and the main body portion are more firmly coupled.

【００２８】さらに、本発明の製造方法によれば、ソフ
ト部上で本体部の発泡原料を発泡させることにより、ソ
フト部を本体部の表面所定の位置に接着するものである
ため、接着剤などを用いて本体部の成形後に当該本体部
に接着する方法と比較して、工程を簡略化することがで
きる。加えて、接着剤が不要となるため経済的に製造す
ることができる。特に、請求項４に示される製造方法に
あっては、簡単な構造で本体部とソフト部とを極めて強
固に接合することができる。Further, according to the manufacturing method of the present invention, the soft material is adhered to a predetermined position on the surface of the main body by foaming the foaming raw material of the main body on the soft part. The process can be simplified as compared with a method in which the main body is molded and then adhered to the main body. In addition, since an adhesive is unnecessary, it can be economically manufactured. Particularly, in the manufacturing method according to the fourth aspect, the main body portion and the soft portion can be joined extremely strongly with a simple structure.

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

【図１】この発明の自動車座席用クッション体の一例を
示す斜視図である。FIG. 1 is a perspective view showing an example of an automobile seat cushion body of the present invention.

【図２】その断面図である。FIG. 2 is a sectional view thereof.

【図３】本発明のクッション体の他の例を示す断面図で
ある。FIG. 3 is a cross-sectional view showing another example of the cushion body of the present invention.

【図４】その要部拡大断面図である。FIG. 4 is an enlarged sectional view of a main part thereof.

【図５】ソフト部を成形する発泡成形型の一例を示す断
面図である。FIG. 5 is a cross-sectional view showing an example of a foaming mold for molding a soft portion.

【図６】得られたソフト部の斜視図である。FIG. 6 is a perspective view of the obtained soft portion.

【図７】その要部の断面図である。FIG. 7 is a sectional view of the main part.

【図８】本発明の製造方法を示すもので、ソフト部を成
形型内に配置する工程を示す斜視図である。FIG. 8 is a perspective view showing the manufacturing method of the present invention and showing a step of disposing a soft part in a molding die.

【図９】ソフト部上に本体部用発泡原料を注入する工程
を示す断面図である。FIG. 9 is a cross-sectional view showing a step of injecting the foaming raw material for the main body onto the soft portion.

【図１０】発泡成形工程を示す断面図である。FIG. 10 is a cross-sectional view showing a foam molding process.

【図１１】その要部の拡大断面図である。FIG. 11 is an enlarged cross-sectional view of the main part thereof.

【図１２】一般的な自動車座席用クッション体の製法例
を示す斜視図である。FIG. 12 is a perspective view showing an example of a method for manufacturing a general automobile seat cushion body.

【図１３】その他の例を示す断面図である。FIG. 13 is a cross-sectional view showing another example.

【符号の説明】[Explanation of symbols]

１０，２０：自動車座席用クッション体 １１，２１：本体部 １２，２２：ソフト部 １３，２３： 発泡体 １４，２４： スキン層 ２５：嵌合孔 ２６：嵌合突起 10, 20: Cushion body for automobile seat 11,21: Main body part 12, 22: Soft part 13, 23: Foam body 14, 24: Skin layer 25: Fitting hole 26: Fitting protrusion

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 本体部の表面所要部に該本体部より柔ら
かいソフト部が形成された自動車座席用クッション体に
おいて、 前記ソフト部は表面にスキン層を有する発泡体からな
り、一方、前記本体部は前記ソフト部の本体部側表面で
発泡成形されて前記ソフト部と接着した発泡体からなる
ことを特徴とする自動車座席用クッション体。1. A cushion for a vehicle seat, wherein a soft portion softer than the main body portion is formed on a required surface portion of the main body portion, wherein the soft portion is made of foam having a skin layer on the surface, while the main body portion is formed. Is a foam body that is foam-molded on the body side surface of the soft portion and is adhered to the soft portion. 【請求項２】 請求項１において、ソフト部の本体部側
表面には内端の拡大した嵌合孔が形成され、本体部のソ
フト側表面に形成された先端の拡大した嵌合突起が、前
記嵌合孔に嵌合していることを特徴とする自動車座席用
クッション体。2. The fitting hole having an enlarged inner end is formed on the surface of the soft portion on the main body portion side, and the fitting projection having an enlarged tip formed on the soft side surface of the main body portion is formed. A cushion body for an automobile seat fitted in the fitting hole. 【請求項３】 本体部の表面所要部に該本体部より柔ら
かいソフト部が形成された自動車座席用クッション体を
製造するに際し、 表面にスキン層を有する発泡体からなる前記ソフト部を
成形型内に配置した後、前記ソフト部上に前記本体部用
の発泡原料を注入し発泡させることにより、前記ソフト
部と接着した本体部を形成することを特徴とする自動車
座席用クッション体の製造方法。3. When manufacturing a cushion for an automobile seat in which a soft portion softer than the main body portion is formed on a required surface portion of the main body portion, the soft portion made of foam having a skin layer on the surface is formed in a molding die. The method for manufacturing a cushion body for an automobile seat, comprising: forming a main body portion bonded to the soft portion by pouring a foaming raw material for the main body portion onto the soft portion and foaming the same after arranging the same. 【請求項４】 請求項３において、ソフト部の本体部側
表面には内端の拡大した嵌合孔があらかじめ形成されて
いて、該ソフト部上に本体部用の発泡原料を注入して発
泡させることにより、前記ソフト部と接着しかつ前記嵌
合孔部分で嵌合した本体部を形成することを特徴とする
自動車座席用クッション体の製造方法。4. The softening portion according to claim 3, wherein a fitting hole having an enlarged inner end is preliminarily formed on the surface of the soft portion on the main body portion side, and foaming raw material for the main body portion is injected onto the soft portion for foaming. The method for manufacturing a cushion body for an automobile seat, characterized in that the main body is adhered to the soft portion and fitted in the fitting hole portion.
JP7349352A 1995-12-19 1995-12-19 Cushion body for automotive seat and its production Pending JPH09168678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7349352A JPH09168678A (en) 1995-12-19 1995-12-19 Cushion body for automotive seat and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7349352A JPH09168678A (en) 1995-12-19 1995-12-19 Cushion body for automotive seat and its production

Publications (1)

Publication Number Publication Date
JPH09168678A true JPH09168678A (en) 1997-06-30

Family

ID=18403195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7349352A Pending JPH09168678A (en) 1995-12-19 1995-12-19 Cushion body for automotive seat and its production

Country Status (1)

Country Link
JP (1) JPH09168678A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175585A (en) * 2007-01-16 2008-07-31 Yokogawa Electric Corp Cartridge for chemical reaction and its using method
JP2011207000A (en) * 2010-03-29 2011-10-20 Toyo Tire & Rubber Co Ltd Method for manufacturing seat pad
GB2521502A (en) * 2013-12-20 2015-06-24 Gm Global Tech Operations Inc Vehicle seat for a motor vehicle
CN108582631A (en) * 2018-05-08 2018-09-28 江西航天经纬化工有限公司 The soft interlayer of two pulses of one kind and its manufacture craft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175585A (en) * 2007-01-16 2008-07-31 Yokogawa Electric Corp Cartridge for chemical reaction and its using method
JP2011207000A (en) * 2010-03-29 2011-10-20 Toyo Tire & Rubber Co Ltd Method for manufacturing seat pad
GB2521502A (en) * 2013-12-20 2015-06-24 Gm Global Tech Operations Inc Vehicle seat for a motor vehicle
US9409505B2 (en) * 2013-12-20 2016-08-09 GM Global Technology Operations LLC Vehicle seat for accommodating an occupant-worn object
CN108582631A (en) * 2018-05-08 2018-09-28 江西航天经纬化工有限公司 The soft interlayer of two pulses of one kind and its manufacture craft

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