JPS63307910A - Preparation of different hardness cushion body - Google Patents
Preparation of different hardness cushion bodyInfo
- Publication number
- JPS63307910A JPS63307910A JP62247058A JP24705887A JPS63307910A JP S63307910 A JPS63307910 A JP S63307910A JP 62247058 A JP62247058 A JP 62247058A JP 24705887 A JP24705887 A JP 24705887A JP S63307910 A JPS63307910 A JP S63307910A
- Authority
- JP
- Japan
- Prior art keywords
- foam
- seat
- bonding
- foams
- sides
- 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
- 239000006260 foam Substances 0.000 claims abstract description 75
- 239000012779 reinforcing material Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 230000001788 irregular Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000010097 foam moulding Methods 0.000 claims 2
- 238000005187 foaming Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011496 polyurethane foam Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000013518 molded foam Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- 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）
この発明は異硬度クッション体の製造方法に関し、更に
述べれば、座席座部が両側部よりも硬い異硬度クッショ
ン体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of manufacturing a cushion body of different hardness, and more specifically, to a method of manufacturing a cushion body of different hardness in which a seat portion is harder than both side portions.
（従来の技術）
自動車の座席に用いられるクッション体は、急回転時等
における乗員のホールド性向上のために両側部が座部よ
りも硬い、いわゆる異硬度クッション体とするのが好ま
しい。(Prior Art) It is preferable that a cushion body used in a car seat is a so-called different hardness cushion body, in which both sides are harder than the seat part, in order to improve the ability to hold the occupant in place during sudden rotations, etc.
かかる異硬度クッション体として、第４図の断面図に示
すように、比較的硬い発泡体からなる両側部１１０．１
１０ と、比較的柔らかい発泡体からなる座部１２０と
を平面からなる結合面１００ａ、 １００ａにおいて接
着して得られたものがある。しかしこの方法により得ら
れたものは、結合面１００ａ、 １００ａの接着力が十
分とは言い難く該結合面において座部１２０と両側部１
１０．１１０ が分離する虞れがあった。As such a cushion body of different hardness, as shown in the cross-sectional view of FIG. 4, both side parts 110.1 are made of a relatively hard foam.
10 and a seat portion 120 made of a relatively soft foam are bonded together at planar bonding surfaces 100a, 100a. However, in the product obtained by this method, the adhesive strength between the bonding surfaces 100a and 100a is not sufficient, and the seat portion 120 and both side portions 1
There was a risk that 10.110 would separate.
また、特開昭５０−１４４７６１ のように、凹凸のあ
る樹脂系膜材が中央部分との接合面に接着されたクッシ
ョン材周縁部を形成し、該樹脂系膜材を挟んでクツ／フ
ン材周縁部の中央にポリウレタンフォ−ム用原料を注入
して中央部分を一体に発泡形成し、樹脂系膜材の凹凸に
より周縁部及び中央部分との接合面積を増大させるもの
もある。しかし、樹脂系膜材と周縁部および中央部分と
の接着が面接着である等の理由により、周縁部または中
央部分が樹脂系膜材表面から剥離し易いきらいがある。In addition, as in JP-A-50-144761, a resin film material with unevenness is bonded to the central part to form the peripheral edge of the cushion material, and the resin film material is sandwiched between the cushion material and the shoe/dung material. In some cases, the raw material for polyurethane foam is injected into the center of the periphery to integrally foam the central part, and the area of bonding between the periphery and the center is increased by the unevenness of the resin film material. However, because the adhesive between the resin-based membrane material and the peripheral portion and the central portion is surface adhesion, the peripheral portion or the central portion tends to peel off from the surface of the resin-based membrane material.
（問題点を解決するための手段）
そこでこの発明は、硬度の異なる発泡体からなる両側部
と座部が一体に結合してなる異硬度クッション体の製造
方法において、その両側部と座部の結合力を増大し、両
側部と座部の分離をなくした製造方法を提供しようとす
るものである。(Means for Solving the Problems) Therefore, the present invention provides a method for manufacturing a cushion body of different hardness in which both sides and a seat made of foams having different hardness are integrally connected. The object is to provide a manufacturing method that increases the bonding force and eliminates the separation between the side parts and the seat part.
（問題点を解決するための手段）
この発明は、座席両側部を構成する発泡体を型キャビテ
ィ内の両側に装置し、該発泡体間の残余のキャビティに
前記発泡体より柔らかい発泡体形成原料を注入して、座
席両側部と一体となった座席座部を発泡成形する異硬度
クッション体の製造方法において、一つの発泡体を切断
面が凹凸等の不規則形状となるように二つに切断分割し
て座席両側部を構成する発泡体とし、該二つの発泡体を
その切断面が対向するように型キャビティ内両側に装置
し、液状物を通過させる性質を有するシート状の結合補
強材を、その両端が前記発泡体の不規則形状面に当接す
るように該二つの発泡体間のキャビティ上部に張設して
、座席座部の発泡成形を行なう異硬度クッション体の製
造方法を１！黴とする。(Means for Solving the Problems) The present invention provides foams constituting both sides of a seat on both sides of a mold cavity, and fills the remaining cavity between the foams with a foam-forming material that is softer than the foam. In the manufacturing method of a cushion body of different hardness, in which a seat seat integrated with both sides of the seat is foam-molded by injection, one foam is divided into two so that the cut surface has an irregular shape such as unevenness. A sheet-like bonding reinforcing material that is cut and divided to form a foam that constitutes both sides of the seat, and installed on both sides of the mold cavity so that the cut surfaces thereof face each other, and that has the property of allowing liquid to pass through. 1. A method for manufacturing a cushion body of different hardness in which a seat is foam-molded by stretching the above-mentioned foam at the upper part of the cavity between the two foam bodies so that both ends of the cushion body are in contact with irregularly shaped surfaces of the foam body. ! Make it moldy.
（作用）
両側部を構成する発泡体間に注入された発泡体形成原料
は、発泡してその際の接着作用により、両側部を構成す
る発泡体の不規則形状からなる切断面と接着し、両側部
よりも柔らかい座部を両側部間に形成し、異硬度クッシ
ョン体になる。そのとき、両側部を構成する発泡体の不
規則形状面に当接するようにして、該二つの発泡体間の
キャビティ上部に張設されているシート状の結合補強材
を、発泡体形成原料が通過して発泡するため、該結合補
強材が両側部と座部の一結合面から座部の底部を通り他
の結合面に至って、発泡体と一体となって張設される。(Function) The foam-forming raw material injected between the foams forming both sides is foamed and, due to the adhesive action at that time, adheres to the irregularly shaped cut surfaces of the foams forming both sides, A seat portion that is softer than both side portions is formed between both side portions, resulting in a cushion body with different hardness. At this time, the foam-forming raw material connects the sheet-like bonding reinforcing material, which is stretched over the cavity between the two foams, so that it comes into contact with the irregularly shaped surfaces of the foams forming both sides. Due to the passage foaming, the bonding reinforcement is stretched integrally with the foam from one bonding surface of the sides and the seat through the bottom of the seat to the other bonding surface.
また、両側部を構成する二つの発泡体が、一つの発泡体
を切断分割してその切断面を座部との結合面としたもの
であるため、発泡体形成原料の接着不良を生じる離型剤
層等が座部との結合面に存在せず、座部と両側部の接着
が良好に行なわれる。In addition, since the two foam bodies that make up the side parts are made by cutting and dividing one foam body and using the cut surfaces as the bonding surfaces with the seat part, mold release may cause poor adhesion of the foam forming raw materials. There is no agent layer or the like on the bonding surface with the seat, and the seat and both sides are well bonded.
しかも発泡体の切断面は気孔が露出して微細な凹凸とな
るため、これによっても座部と両側部の接着が強固にな
る。Furthermore, the cut surface of the foam exposes the pores and creates fine irregularities, which also strengthens the adhesion between the seat and both sides.
そして、このように形成された異硬度クッション体は、
両側部と座部との結合面における不規則形状により該結
合面積が増大するため、また発泡体形成原料がシート状
の結合補強材を通って発泡し両側部の結合面に接着する
ことから、該結合補強材と座部または両側部との結合が
単なる面接着と異なり強固となるとともに、結合面が結
合補強材の存在により補強されるため、更には両側部の
結合面に接着を妨げる離型剤層等がなく、かつ該結合面
に気孔が露出しているので両側部と座部の接着が良好に
なされるため、および座部の底部を通って両側部の結合
面間に張設された結合補強材によって両側部と座部が一
体に連結されるため、等の理由により、両側部と座部が
強固に結合され、分離することのないものとなる。The cushion body with different hardness formed in this way is
Because the bonding area increases due to the irregular shape of the bonding surfaces between the both sides and the seat, and because the foam forming raw material foams through the sheet-like bonding reinforcing material and adheres to the bonding surfaces of the both sides, The bond between the bonding reinforcing material and the seat or both sides is strong, unlike simple surface adhesion, and the bonding surfaces are reinforced by the presence of the bonding reinforcing material, so there is no separation on the bonding surfaces of both sides that prevents adhesion. Since there is no molding agent layer, etc., and the pores are exposed on the bonding surface, the adhesion between both sides and the seat is good, and the bonding surface is stretched between the bonding surfaces of both sides through the bottom of the seat. Since the both sides and the seat are integrally connected by the joint reinforcing material, the both sides and the seat are firmly connected and cannot be separated.
他方、座部のクッション性においても結合補強材が座部
の底部に位置するため、該結合補強材がクッション性に
悪影響を与えることもない。On the other hand, regarding the cushioning properties of the seat, since the bonding reinforcing material is located at the bottom of the seat, the bonding reinforcing material does not adversely affect the cushioning properties.
（実施例） 以下実施例に基づきこの発明を説明する。(Example) The present invention will be explained below based on Examples.
第３図は、この発明の実施により得られた自動車用座席
に用いられる異硬度クッション体２００の斜断面図であ
る。異硬度クッション体２００は、座席両側部を構成す
る比較的硬い発泡体２１０．２１０と、座部を構成する
比較的柔らかい発泡体２２０とからなり、各発泡体は結
合面ａＳａにおいて一体に結合されてなる。FIG. 3 is a perspective cross-sectional view of a cushion body 200 of different hardness used in an automobile seat obtained by implementing the present invention. The cushion body 200 of different hardness is composed of relatively hard foam bodies 210 and 210 that constitute both side parts of the seat, and a relatively soft foam body 220 that constitutes the seat part, and each foam body is joined together at the joining surface aSa. It becomes.
両側部の発泡体２１０．２１０ は、結合面において凹
形状２１０ａ、 ２１０ａが形成されており、また座部
の発泡体２２０は、結合面ａ、ａにおいて、前記の発泡
体２１０．２１０に形成された凹形状２１０ａ、２１０
ａに嵌合する凸形状２２０ａ、 ２２０ａが形成されて
いる。そしてその発泡体２２０の底部から凸形状２２０
ａ、 ２２０ａの上部、すなわち凹形状２１０ａ、 ２
１０ａとの接触面に亘って、寒冷紗等の、液状物を通過
させる性質を有するシート状の結合補強材２３０が張設
されている。The foams 210, 210 on both sides are formed with concave shapes 210a, 210a on the bonding surfaces, and the foam 220 on the seat is formed on the foams 210, 210 on the bonding surfaces a, a. concave shapes 210a, 210
Convex shapes 220a, 220a are formed to fit into the a. A convex shape 220 is formed from the bottom of the foam 220.
a, the upper part of 220a, that is, the concave shape 210a, 2
A sheet-like bonding reinforcing material 230, such as cheesecloth, which allows liquid to pass through, is stretched over the contact surface with 10a.
次に前記異硬度クッション体２２０を製造する方法とし
てこの発明の一実施例について、断面により示した製造
工程図第１図を用いて説明する。Next, an embodiment of the present invention as a method for manufacturing the cushion body 220 of different hardness will be described using FIG. 1, which is a manufacturing process diagram shown in cross section.
（イ）まず座席両側部を構成する比較的硬い発泡体２１
０．２１０を、製品形状の型面を有する成形用型の下型
２４０内所定位置、すなわちキャビティ内両側部に装置
する。それによって下型の中央部には、発泡体２１０．
２１０と下型２４０内壁に囲まれた空間へが形成される
。発泡体２１０．２１０ はポリウレタンフォーム等か
らなり、座部との結合面ａＳａに所定の不規則形状、こ
の例にあっては凹形状２１０ａ。(a) First, the relatively hard foam 21 that constitutes both sides of the seat
0.210 is placed at a predetermined position in the lower mold 240 of a mold having a mold surface in the shape of a product, that is, on both sides inside the cavity. Thereby, a foam 210.
210 and a space surrounded by the inner wall of the lower mold 240 is formed. The foam body 210.210 is made of polyurethane foam or the like, and has a predetermined irregular shape, in this example, a concave shape 210a, on the surface aSa that connects to the seat.
２１０ａが形成されている。かかる発泡体２１０．２１
０は、モールド成形された一つの発泡体を、切断面が所
定の不規則形状（凹形状２１０ａ、 ２１０ａ ）とな
るように二つに切断分割してなるもので、その切断面（
座部との結合面ａＳａ）が対向するように、即ち凹形状
２１０ａ、 ２１０ａが対向するように型キャビティ内
に装置される。なお、発泡体２１０．２１０の不規則形
状は、座席の形状等により適宜凹形状、凸形状、凹凸形
状等とされる。210a is formed. Such foam 210.21
0 is made by cutting and dividing one molded foam into two such that the cut surfaces have a predetermined irregular shape (concave shapes 210a, 210a), and the cut surfaces (
It is installed in the mold cavity so that the connecting surfaces aSa) with the seat part face each other, that is, the concave shapes 210a, 210a face each other. Note that the irregular shape of the foam body 210, 210 may be a concave shape, a convex shape, an uneven shape, etc., as appropriate depending on the shape of the seat and the like.
（ロ）次いで型キャビティの空間Ａに、発泡体２１０．
２１０よりも柔らかい発泡体を形成する発泡体形成原料
Ｂ、たとえば軟質ポリウレタンフォーム原料を注入する
。(b) Next, the foam 210.
A foam-forming raw material B, such as a flexible polyurethane foam raw material, which forms a foam softer than 210, is injected.
（ハ）そして上蓋２５０の内面に、寒冷紗等の、液状物
すなわち原料Ｂを通過させる性質を有するシート状の結
合補強材２３０を装着する。第２図はその上蓋２５０の
一例を示し、上蓋２５０の内面には第２図の（イ）に示
すように、結合補強材を所定形状に支持する突起２５１
が形成され、この突起２５１の上面および上蓋２５０の
内面中央に、結合補強材を係止するピン２５２．２５３
が設けられている。これらのビンに、第２図の（ロ）
の如く結合補強材２３０を係止して該結合補強材を上蓋
に装着する。(c) Then, a sheet-like bonding reinforcing material 230, such as cheesecloth, which has a property of allowing the liquid material, that is, the raw material B to pass through, is attached to the inner surface of the upper lid 250. FIG. 2 shows an example of the upper lid 250, and on the inner surface of the upper lid 250, as shown in FIG.
is formed, and pins 252 and 253 for locking the coupling reinforcing material are formed on the upper surface of this protrusion 251 and in the center of the inner surface of the upper lid 250.
is provided. In these bottles, (b) in Figure 2 is added.
The joint reinforcing material 230 is locked and attached to the top cover as shown in FIG.
（ニ）その後上蓋２５０を閉め、成形用型を閉じる。(d) After that, close the upper lid 250 and close the mold.
この時、結合補強材２３０両端部は、発泡体２１０．２
１０ に形成された凹形状２１０ａ、 ２１０ａと接す
る。At this time, both ends of the bonding reinforcing material 230 are connected to the foam 210.2.
The concave shapes 210a and 210a formed in the 10 are in contact with each other.
（ネ）発泡体形成原料Ｂは、成形用型内の空間へで発泡
し、結合補強材２３０を通過して凸形状２２０ａ 。(iv) The foam-forming raw material B is foamed into the space within the mold, passes through the bonding reinforcing material 230, and forms a convex shape 220a.
２２０ａを形成し、結合補強材２３０が底部から凸形状
２２０ａ、 ２２０ａの上部に亘って張設された比較的
柔らかい発泡体２２０となる。この発泡体２２０は座部
を構成するもので、発泡体形成原料Ｂの発泡時における
自己接着性により、両側部を構成する発泡体２１０．２
１０ の結合面ａＳａに接着して、該発泡体２１０．２
１０ と一体になる。また結合面の凹形状部２１０ａ、
２１０ａにおいては、前記凸形状２２０ａ、 ２２０
ａを形成する発泡体形成原料Ｂが、結合補強材２３０の
両端部を通過して凸形状部２１０ａ、 ２１０ａと接着
するため、凹形状部２１０ ａ 、 ２１０ ａと凸
形状部２２０ａ 。220a, and a relatively soft foam 220 with a bonding reinforcing material 230 stretched from the bottom to the top of the convex shapes 220a, 220a. This foam 220 constitutes the seat portion, and due to the self-adhesive properties of the foam forming raw material B during foaming, the foam 210.2 constitutes the both side portions.
10 to the bonding surface aSa of the foam 210.2.
Become one with 10. In addition, the concave portion 210a of the bonding surface,
In 210a, the convex shapes 220a, 220
Since the foam-forming raw material B that forms a passes through both ends of the bonding reinforcing material 230 and adheres to the convex portions 210a, 210a, the concave portions 210a, 210a and the convex portion 220a are bonded to each other.
２２０ａが結合補強材２３０を通して接着する。220a is bonded through bonding reinforcement 230.
（へ）そして発泡体形成原料Ｂの反応終了後成形品を脱
型すれば、異硬度クッション体２００を辱る。(f) If the molded product is removed from the mold after the reaction of the foam forming raw material B is completed, the cushion body 200 of different hardness will be damaged.
そのようにして得られた異硬度クッション体２００は、
両側部を構成する発泡体２１０．２１０がその切断面を
座部との結合面ａ、ａとするため、その結合面には離形
剤層がなく、座部を構成する発泡体２２０ と前記発泡
体２１０．２１０ との接着が妨げられることがないう
えに、結合面に形成された凹凸形状２１０ａ、 ２１０
ａ、 ２２０ａ、 ２２０ａからなる不規則形状により
結合面積が増大するため座部と両側部が強固に接着結合
されている。加えて、結合面の凹凸形状部に結合補強体
２３０の端部が存在するため、該結合面が補強されると
ともに、該結合補強材が発泡体形成原料を通すため、結
合補強材２３０ と発泡体２１０．２１０．２２０ と
は強固に固着し、該結合補強材と発泡体２１０．２．１
０．２２０ との剥離を生じ難い。更に、座部の底部を
通って面結合面に張設された結合補強材２３０ によっ
て、両側部と座部が一つに連結されるため、一層側側部
と座部の分離が生じ難くなる。しかも、結合補強材２３
０は座部底部に位置するため、及び結合面が凹凸等の不
規則形状からなるため発泡体の変形がさまたげれす、ク
ッション性に悪影響を受けることがない。The cushion body 200 of different hardness thus obtained is
Since the cut surfaces of the foam bodies 210 and 210 constituting both sides are the bonding surfaces a and a with the seat, there is no release agent layer on the bonding surfaces, and the foam 220 constituting the seat and the above-mentioned Adhesion with the foam 210, 210 is not hindered, and the uneven shapes 210a, 210 formed on the bonding surface
The irregular shape formed by the portions 220a, 220a, and 220a increases the bonding area, so that the seat portion and both sides are firmly bonded with adhesive. In addition, since the end of the bonding reinforcing body 230 exists in the uneven shape portion of the bonding surface, the bonding surface is reinforced, and since the bonding reinforcing material passes the foam forming raw material, the bonding reinforcing material 230 and the foam The body 210.210.220 is firmly attached to the bonding reinforcement and the foam 210.2.1.
0.220 It is difficult to cause peeling. Furthermore, since both sides and the seat are connected together by the joining reinforcing material 230 stretched through the bottom of the seat and onto the surface connecting surface, it becomes even more difficult for the side parts and the seat to separate. . Moreover, the joint reinforcing material 23
0 is located at the bottom of the seat, and since the bonding surface has an irregular shape such as unevenness, the deformation of the foam is not hindered and the cushioning properties are not adversely affected.
なお、この発明に用いられる各発泡体としては、軟質、
半硬質、硬質ポリウレタンフォームが一般的であり、硬
度変化は材質変化、密度の変化等によってなされる。Note that the foams used in this invention include soft,
Semi-rigid and rigid polyurethane foams are common, and changes in hardness are achieved by changes in material, density, etc.
（発明の効果）
この発明は前記の如くの構成からなるため、得られる異
硬度クッション体の両側部と座部の結合が強固であり、
該両側部と座部の分離の虞れをなくすことができたので
ある。しかもクッション性を損なうこともないのである
。(Effects of the Invention) Since the present invention has the above-described configuration, the connection between the both sides and the seat of the obtained cushion body of different hardness is strong,
This makes it possible to eliminate the risk of separation of the both sides and the seat. Moreover, the cushioning properties are not impaired.
また、一つの発泡体を切断分離して両側部を構成する二
つの発泡体とするため、両側部を個々に発泡成形する必
要がなく作業も簡略になる利点も有る。Furthermore, since one foam is cut and separated to form two foams constituting both side parts, there is also the advantage that there is no need to foam-mold the both sides individually, which simplifies the work.
第１図はこの発明の実施例の製造工程を示す断面図、第
２図は上蓋一実施例の斜視図、第３図はこの発明の実施
により得られた異硬度クッション体の斜断面図、第４図
は従来方法により得られた異硬度クッション体の斜断面
図である。
２１０ ・・・・ 両側部を構成する発泡体、２１０
ａ・・・・ 凹形状、
２２０ ・・・・座部を構成する発泡体、２３０
・・・・結合補強材、
Ｂ・・・・発泡体形成原料FIG. 1 is a sectional view showing the manufacturing process of an embodiment of the present invention, FIG. 2 is a perspective view of an embodiment of the upper lid, and FIG. 3 is a perspective sectional view of a cushion body of different hardness obtained by implementing the invention. FIG. 4 is a perspective cross-sectional view of a cushion body of different hardness obtained by a conventional method. 210... Foam forming both side parts, 210
a... Concave shape, 220... Foam forming the seat portion, 230
...Binding reinforcing material, B...Foam forming raw material
Claims (1)
装置し、該発泡体の残余のキャビティ空間に前記発泡体
より柔らかい発泡体形成原料を注入して、座席両側と一
体となった座席座部を発泡成形する異硬度クッション体
の製造方法において、一つの発泡体を切断面が凹凸等の
不規則形状となるように二つに切断分割して座席両側部
を構成する発泡体とし、該二つの発泡体をその切断面が
対向するように型キャビティ内両側に装置し、液状物を
通過させる性質を有するシート状の結合補強材を、その
両端が前記発泡体の不規則形状面に当接するように該二
つの発泡体間のキャビティ上部に張設して、座席座部の
発泡成形を行なうことを特徴とする異硬度クッション体
の製造方法。The foam forming the both sides of the seat is placed on both sides of the mold cavity, and a foam-forming raw material softer than the foam is injected into the remaining cavity space of the foam to form a seat that is integrated with both sides of the seat. In the manufacturing method of a cushion body of different hardness, which involves foam molding a foam body, one foam body is cut and divided into two parts so that the cut surface has an irregular shape such as unevenness, and the foam bodies constituting both side parts of the seat are made. Two foams are placed on both sides of the mold cavity so that their cut surfaces face each other, and a sheet-like bonding reinforcing material that allows liquid to pass through is placed so that both ends of the material are in contact with the irregularly shaped surfaces of the foams. A method for manufacturing a cushion body of different hardness, characterized in that foam molding of a seat portion is carried out by stretching the two foam bodies over the cavity between the two foam bodies so as to be in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62247058A JPS63307910A (en) | 1987-09-29 | 1987-09-29 | Preparation of different hardness cushion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62247058A JPS63307910A (en) | 1987-09-29 | 1987-09-29 | Preparation of different hardness cushion body |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13564987A Division JPS63301079A (en) | 1987-05-30 | 1987-05-30 | Image forming device with accurate tone concentration control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63307910A true JPS63307910A (en) | 1988-12-15 |
| JPH0327370B2 JPH0327370B2 (en) | 1991-04-15 |
Family
ID=17157794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62247058A Granted JPS63307910A (en) | 1987-09-29 | 1987-09-29 | Preparation of different hardness cushion body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63307910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0382503A (en) * | 1989-08-25 | 1991-04-08 | Zoukei:Kk | Manufacture of female mold for molding concrete product with decorative pattern of three-dimensional shape |
-
1987
- 1987-09-29 JP JP62247058A patent/JPS63307910A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0382503A (en) * | 1989-08-25 | 1991-04-08 | Zoukei:Kk | Manufacture of female mold for molding concrete product with decorative pattern of three-dimensional shape |
| JPH0529523B2 (en) * | 1989-08-25 | 1993-04-30 | Zokei Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0327370B2 (en) | 1991-04-15 |
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