JPH02276606A - Manufacture and mold of different hardness cushioning body - Google Patents
Manufacture and mold of different hardness cushioning bodyInfo
- Publication number
- JPH02276606A JPH02276606A JP1098527A JP9852789A JPH02276606A JP H02276606 A JPH02276606 A JP H02276606A JP 1098527 A JP1098527 A JP 1098527A JP 9852789 A JP9852789 A JP 9852789A JP H02276606 A JPH02276606 A JP H02276606A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- partition wall
- foaming
- different hardness
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000005192 partition Methods 0.000 claims abstract description 67
- 238000005187 foaming Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 11
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 2
- 239000011496 polyurethane foam Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 210000003491 skin Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
- B29C44/0469—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other provided with physical separators between the different materials, e.g. separating layers, mould walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、硬さが部分的に異なる異硬度クッション体
の製造方法と、その製造方法に使用する異硬度クッショ
ン体の成形型に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a cushion body of different hardness in which hardness is partially different, and a mold for the cushion body of different hardness used in the manufacturing method.
（従来技術）
例えば自動車の座席に用いられるクッション体は、乗員
の姿勢保持のため、および表皮被着時にクッション体の
外形線が崩れて表皮に皺が発生するのを防ぐためから、
第６図のように縁部、特に側部１０ａ、１０ｂを中央部
１０ｃよりも硬くした異硬度クッション体が好ましいと
されている。(Prior Art) For example, cushion bodies used in automobile seats are designed to maintain the posture of occupants, and to prevent the outline of the cushion body from collapsing and wrinkles on the outer skin when the outer skin is applied.
It is said that a cushion body of different hardness is preferable, as shown in FIG. 6, in which the edges, especially the side parts 10a and 10b, are made harder than the central part 10c.
かかる異硬度クッション体の従来における主な製造方法
として次のものがある。The following are the main conventional manufacturing methods for such cushion bodies of different hardness.
そのひとつは、所定形状に成形した発泡体を成形型内の
所定位置に装置し、型内の残りの部分にその発泡体とは
硬さの異なる発泡体形成用発泡原料を注入し、一体発泡
させる方法である。One method is to place a foam molded into a predetermined shape in a predetermined position in a mold, and then inject a foam-forming raw material with a hardness different from that of the foam into the remaining part of the mold. This is the way to do it.
また他の方法は、特開昭５７−１９２５１０号公報に記
載されている方法で、第７図のように、型内底面に隔壁
１２を立設して型内を複数の分室１４ａ、１４ｂ、１４
ｃに区画し、その各分室に異種または異質の発泡原料１
６ａ 、 １６ｃ 、 １８ｃをそれぞれ注入し、ある
いは各分室に同一の発泡原料を充填密度を変えてそれぞ
れ注入し、発泡させることにより異硬度クッション体を
製造する方法である。Another method is the method described in Japanese Patent Application Laid-Open No. 192510/1983, as shown in FIG. 14
C, and each compartment contains different or different foaming materials 1.
6a, 16c, and 18c, or the same foaming raw material is injected into each compartment with different packing densities and foamed, thereby manufacturing cushion bodies of different hardness.
しかし前者の方法は、あらかじめ所定形状のクッション
体を成形せねばならず、作業工数が増大する問題があり
、しかも後に型内に注入する発泡原料が型内のクッショ
ン体に含浸硬化するため、その含浸部分で違和感を生じ
る欠点もある。However, the former method requires molding the cushion body in a predetermined shape in advance, which increases the number of work steps, and furthermore, the foaming raw material that is later injected into the mold impregnates and hardens the cushion body in the mold. It also has the disadvantage of causing discomfort in the impregnated area.
一方接者の方法は、一つの型で一時に異硬度クッション
体を製造できるため作業性に優れ、しかもクッション体
に含浸硬化部ができないため、品質の良好な異硬度クッ
ション体を得られる利点がある。しかし、その方法にお
いては、型壁面１８ａ。On the other hand, the contact method has the advantage of being superior in workability as it can manufacture cushion bodies of different hardness in one mold at the same time, and that it can produce cushion bodies of good quality with different hardness since no impregnated and hardened parts are created in the cushion body. be. However, in that method, the mold wall surface 18a.
１８ｂと隔壁１２．１２間の距離ａ、ｂを小とすると、
分室１４ａ、１４ｂ内に発泡原料１ｅａ、１６ｂを注入
する作業がしずらくなるため、型壁面１８ａと隔壁１２
間の距離をある程度大としなければならない。その結果
、得られる異硬度クッション体は、第８図のように側部
の硬い側部２０ａ、２０ｂの幅Ａ、Ｂが大となって、そ
の硬い部分が着座者の臀部に当接するようになるため、
着座恣を損なう虞れがあった。If the distances a and b between 18b and partition wall 12.12 are small,
Since the work of injecting the foaming raw materials 1ea and 16b into the compartments 14a and 14b becomes difficult, the mold wall surface 18a and the partition wall 12
The distance between them must be increased to some extent. As a result, the obtained cushion body with different hardness has the hard side portions 20a and 20b with large widths A and B, as shown in FIG. 8, so that the hard portions come into contact with the buttocks of the seated person. To become
There was a risk of compromising the comfort of sitting.
また、後者の方法に用いる成形型は、内底面の一部を突
堤状として隔壁１２を形成してなるため、その隔Ｅ！１
２の厚みが比較的大であり、しかも各分室内の発泡原料
の混合を極力防ぐため、隔ｒｉ１２の高さが大なるもの
である。従って、得られる異硬度クッション体は、第８
図のように側部２０ａ、２０ｂと中央部２０ｃ間に形成
されるスリット２２ａ、２２ｂの幅および深さが大にな
り、着座時に側部２０ａ。Moreover, since the mold used in the latter method has a part of the inner bottom surface shaped like a bulge to form the partition wall 12, the partition E! 1
The thickness of the partition 2 is relatively large, and the height of the partition 12 is large in order to prevent mixing of the foaming materials in each compartment as much as possible. Therefore, the obtained cushion body with different hardness is
As shown in the figure, the width and depth of the slits 22a, 22b formed between the side portions 20a, 20b and the center portion 20c are increased, so that the side portion 20a is closed when seated.
２０ｂが外方向へ開く問題もある。There is also the problem that 20b opens outward.
（発明が解決しようとする課題）
そこでこの発明は、縁部の硬さ変化部分の幅が小で、し
かも表面に形成されるスリット幅も小なる異硬度クッシ
ョン体を、容易に得られる製造方法と、その製造方法に
用いる成形型を提供せんとするものである。(Problems to be Solved by the Invention) Therefore, the present invention provides a method for easily producing a cushion body of different hardness, in which the width of the hardness changing portion at the edge is small and the width of the slit formed on the surface is also small. The present invention aims to provide a mold for use in the manufacturing method.
（課題を解決するための手段）
この発明における異硬度クッション体の製造方法の要旨
は、型内の底面に立設した隔壁により該型内を複数の分
室に区画し、その各分室に異種または異質の発泡原料を
それぞれ注入し、あるいは各分室に同一の発泡原料を充
填密度を変えてそれぞれ注入し、発泡させることにより
異硬度クッション体を製造する方法において、型内壁面
と隔壁間にある分室内に発泡原料を注入する際、該隔壁
を型内中央側へ倒してその隔壁と型内壁面の間を広げ、
注入後肢隔壁を立てるところにある。(Means for Solving the Problems) The gist of the method for manufacturing a cushion body of different hardness according to the present invention is that the inside of the mold is divided into a plurality of compartments by a partition wall installed on the bottom of the mold, and each compartment has a In the method of manufacturing cushion bodies of different hardness by injecting different foaming raw materials or injecting the same foaming raw material into each compartment with different packing densities and foaming, When injecting the foaming raw material into the chamber, the partition wall is pushed down toward the center of the mold to widen the space between the partition wall and the inner wall surface of the mold.
It is located where the injection hindlimb septum is erected.
また、この発明の成形型が要旨とするところは、型内の
底面に立設゛した隔壁により該型内を複数の分室に区画
してなる異硬度クッション体の成形型において、該隔壁
を板バネ状材質からなる可倒なものとするともに、該隔
壁を型内中央側へ倒した際にその隔壁を離脱可能に固定
する固定手段を、型内底面に設けたところにある。Further, the gist of the mold of the present invention is that in a mold for a cushion body of different hardness, the inside of the mold is divided into a plurality of compartments by a partition wall provided upright on the bottom surface of the mold. The partition wall is made of a spring-like material and is collapsible, and a fixing means is provided on the bottom surface of the mold to removably fix the partition wall when the partition wall is tilted toward the center of the mold.
【作用）
各分室に異種または異質の発泡原料を注入し、あるいは
同一の発泡原料をその充填密度を変えて注入する際、隔
壁を型内中央側へ倒してその隔壁と型内壁面間を広げる
ため、該隔壁と型内壁面間の距離を小に設定しても、該
隔壁と型内壁面間の分室内に容易に発泡原料を注入する
ことができる。[Function] When injecting different or different foaming materials into each compartment, or when injecting the same foaming material with different packing densities, the partition wall is pushed down toward the center of the mold to widen the gap between the partition wall and the mold inner wall surface. Therefore, even if the distance between the partition wall and the inner wall surface of the mold is set small, the foaming material can be easily injected into the compartment between the partition wall and the inner wall surface of the mold.
そして、発泡原料の注入後に隔壁を立て、その隔壁によ
り区画された各分室内でそれぞれの発泡原料を発泡させ
、一つの異硬度クッション体を形成する。After the foaming raw material is injected, a partition wall is erected, and each foaming raw material is foamed in each compartment divided by the partition wall, thereby forming one cushion body of different hardness.
得られる異硬度クッション体は、前記隔壁と型内壁面間
の距離を小とできるため、縁部の硬さ変化部分の幅を小
とすることができる。In the obtained cushion body of different hardness, since the distance between the partition wall and the inner wall surface of the mold can be made small, the width of the hardness changing portion of the edge can be made small.
また、この発明の成形型は、型内底面に形成した板ばね
状の隔壁を型内中央側へ倒して型内底面の固定手段で固
定することにより、型内壁面と隔壁間を広げることがで
き、前記製造方法における型内壁面と隔壁間への発泡原
料の注入を容易に行うことができる。そして発泡原料の
注入後は、前記隔壁の固定を解除すれば該隔壁がバネ弾
性でもって自動的に復元し、すなわち立ち上がって、該
型内を元どおりの複数の分室に区画する。Furthermore, in the mold of the present invention, the space between the inner wall surface of the mold and the partition wall can be increased by tilting the leaf spring-shaped partition wall formed on the inner bottom surface of the mold toward the center of the mold and fixing it with the fixing means on the inner bottom surface of the mold. Therefore, the foaming raw material can be easily injected between the inner wall surface of the mold and the partition wall in the manufacturing method. After the foaming raw material is injected, when the partition wall is released from its fixation, the partition wall automatically returns to its original state with spring elasticity, that is, stands up, and divides the inside of the mold into a plurality of compartments as before.
しかも、その隔壁は板バネ状からなり、藩＜できるため
、該隔壁によって形成される異硬度クツシヨン体表面の
スリット幅を小にすることもできる。In addition, since the partition wall is formed into a leaf spring shape and is flexible, the width of the slit in the surface of the cushion body of different hardness formed by the partition wall can be made small.
（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１図はこの発明の一実施例に係る成形型の断面図、第
２図ないし第４図はその成形型を用いて行うこの発明の
一実施例における異硬度クッション体の製造時を示す断
面図である。FIG. 1 is a cross-sectional view of a mold according to an embodiment of the present invention, and FIGS. 2 to 4 are cross-sectional views showing the manufacturing of a cushion body of different hardness according to an embodiment of the present invention using the mold. It is a diagram.
成形型２４は、自動車座席用の異硬度クッション体を形
成するためのもので、下型２６と上型２８からなり、内
部に所望形状のキャビティ２５を有する。The mold 24 is for forming a cushion body of different hardness for an automobile seat, and is composed of a lower mold 26 and an upper mold 28, and has a cavity 25 of a desired shape inside.
下型２６は、両側部の内面３０．３０が中央部の内面３
２よりも下方に膨出し、その両側部内面３０．３０と中
央部３Ｚ内面との境界部に低い突条３４．３４が形成さ
れ、その突条３４．３４先端に、後記する隔壁固定手段
としての磁石３６．３６が取り付けられ、さらには型側
部の内壁面３８．３８から所定距［ｉれた型内面に鋼板
からなる隔壁４０．４０が立設されている。隔壁４０．
４０は、その上端と上型２８内面との間に隙間２９、２
９を残して型内を３つの分室４２ａ 、 ４２ｂ 、
４２Ｃに区画するもので、そのバネ状弾性に抗して上部
を型面中央側へ倒した際に、前記下型内面の磁石３６．
３６に吸引固定されるようになっている。また、隔壁４
０．４０と型内壁面３８．３８との間隔は、製品形状等
により最適なものとされる。The lower mold 26 has inner surfaces 30 and 30 on both sides as the inner surface 3 in the center.
2, a low protrusion 34.34 is formed at the boundary between the inner surface 30.30 of both sides and the inner surface of the central part 3Z. magnets 36.36 are attached, and a partition wall 40.40 made of a steel plate is erected on the inner surface of the mold at a predetermined distance [i] from the inner wall surface 38.38 of the side of the mold. Partition wall 40.
40 has a gap 29, 2 between its upper end and the inner surface of the upper mold 28.
Leaving 9, the inside of the mold is divided into three compartments 42a, 42b,
42C, and when the upper part is tilted toward the center of the mold surface against the spring-like elasticity of the magnet 36.
36 and is fixed by suction. In addition, the partition wall 4
The distance between 0.40 and the mold inner wall surface 38.38 is determined to be optimal depending on the product shape, etc.
なお、上記の成形型は一実施例であって、これに限るも
のではない０例えば、前記隔壁４０．４０をバネ状弾性
を有するプラスチック板とするとともに、固定手段を磁
石３６．３６に代えてフック等としてもよく、また隔壁
４０．４０を、下型の側部内壁面３８、３８形状に合わ
せた曲面形状としてもよい。Note that the above-mentioned mold is an example, and is not limited to this. For example, the partition wall 40.40 may be made of a plastic plate having spring-like elasticity, and the fixing means may be replaced with the magnet 36.36. It may be a hook or the like, or the partition walls 40, 40 may have a curved shape matching the shape of the side inner wall surfaces 38, 38 of the lower mold.
次に、上記成形型２４を用いて行う異硬度クッション体
の製造方法について説明する。Next, a method of manufacturing a cushion body of different hardness using the mold 24 will be described.
まず第２図のように、隔！４０．４０をそのバネ弾性に
抗して型面中央側へ押し倒し、下型内底面の磁石３６．
３６に吸着固定し、該型内壁面３８．３８と隔壁４０．
４０間の間隔を広げる。First, as shown in Figure 2, the interval! 40.40 against its spring elasticity toward the center of the mold surface, and magnet 36.40 on the inner bottom surface of the lower mold.
36, and the mold inner wall surface 38.38 and partition wall 40.
Increase the distance between 40.
そして、隔壁４０．４０と型内壁面３８．３８間の分室
４２ａ 、 ４２ｂ 、および隔壁４０．４０間の分室
４２ｃにそれぞれ軟質ポリウレタンフォーム原料等の発
泡原Ｆ４４４ａ 、 ４４ｂ 、 ４４ｃを注入する。Then, foaming agents F444a, 44b, 44c such as flexible polyurethane foam raw materials are injected into the partitions 42a, 42b between the partition wall 40.40 and the mold inner wall surface 38.38, and into the partition chamber 42c between the partition wall 40.40, respectively.
このとき両側部の分室４２ａ 、 ４２ｂに注入する発
泡原料４４ａ、４４ｂは、中央の分室４２ｃに注入する
発泡原料４４ｃよりも硬い発泡体になるものとする。な
お、両側部の分室４２ａ、４２ｂに注入する発泡原料４
４ａ、４４ｂのうち、一方を他方よりも硬い発泡体にな
るものとしてもよい。また、発泡原料４４ａ 、 ４４
ｂ 、 ４４ｃを同一のものとして、その充填密度を分
室毎に変えることにしてもよい。At this time, the foaming raw materials 44a and 44b injected into the compartments 42a and 42b on both sides are made to be harder foams than the foaming raw material 44c injected into the central compartment 42c. Note that the foaming raw material 4 injected into the compartments 42a and 42b on both sides
One of 4a and 44b may be made of a harder foam than the other. In addition, foaming raw materials 44a, 44
b and 44c may be the same, but the packing density may be changed for each compartment.
次いで、隔壁４０．４０を磁石３６．３６から引き離し
、該隔壁のバネ弾性を利用して隔壁４０．４０を第３図
のように復元させ、元の状態に立てる。この復元した隔
壁４０．４０により、型内は再び本来の大きさの分室に
区画される。なお、前記隔壁４０．４０を復元させる作
業は、手でもって隔壁４０．４０を磁石から引き雛して
もよく、あるいは磁石３６．３６を電気磁石として、そ
の電気の通電解除により行ってもよい。Next, the partition wall 40.40 is separated from the magnet 36.36, and the spring elasticity of the partition wall is used to restore the partition wall 40.40 to its original state as shown in FIG. The restored partition wall 40.40 again divides the inside of the mold into compartments of the original size. Note that the work of restoring the partition wall 40.40 may be carried out by manually pulling the partition wall 40.40 from the magnet, or by using the magnet 36.36 as an electric magnet and turning off the electricity. .
その後、第４図のように上型２４を下型２６に被せ、各
分室４２ａ 、 ４２ｂ 、 ４２ｃ内でそれぞれの発
泡原料４４ａ 、 ４４ｂ 、 ４４ｃを発泡させる。Thereafter, as shown in FIG. 4, the upper mold 24 is placed over the lower mold 26, and the foaming materials 44a, 44b, 44c are foamed in the respective compartments 42a, 42b, 42c.
その発泡により、発泡原料４４ａ 、 ４４ｂ 、 ４
４ｃは各分室４２ａ 、 ４２ｂ 。Due to the foaming, the foaming raw materials 44a, 44b, 4
4c is each branch room 42a, 42b.
４２ｃ内に充満し、その後隔壁４０．４０上部の隙間２
９゜２９部分で一体化し、一つの発泡成形品になる。そ
して、その発泡成形品を型から取り出せば、第５図の断
面図に示す所望の異硬度クッション体４６が得られる。42c, and then the gap 2 above the partition wall 40.40
It is integrated at the 9°29 part to form one foam molded product. Then, when the foamed molded product is taken out of the mold, a desired cushion body 46 of different hardness shown in the sectional view of FIG. 5 is obtained.
得られた異硬度クッション化４６は、前記型中央の分室
４２ｃ″′Ｃ発泡成形された発泡体４６ｃの両側に、型
両側部の分室４２ａ、４２ｂで発泡成形された硬目の発
泡体４６ａ、４６ｂが結合してなり、該硬さの異なる発
泡体の間に、前記隔壁４０．４０による幅（隙間）の狭
いスリット４８．４８が形成されている。The obtained cushioning 46 of different hardness includes a hard foam 46a formed by foaming in the partitions 42a and 42b on both sides of the mold, on both sides of the foam 46c formed by foaming in the partition 42c'''C in the center of the mold, 46b are combined, and a narrow slit 48.48 (gap) is formed by the partition wall 40.40 between the foams of different hardness.
その後、異硬度クッション化４６を、表皮（図示せず）
で覆えば、自動車の座席が得られる。このようにして形
成された座席は、両側の硬い発泡体部分によって乗員の
姿勢を正しく保持する機能がある。After that, the different hardness cushioning 46 is applied to the epidermis (not shown).
If you cover it with , you can get a car seat. The seat formed in this manner has the function of maintaining the correct posture of the occupant by the hard foam parts on both sides.
（効果）
この発明は前記の構成からなるため、型内壁面と＃Ｉ壁
の間隔を小としても、該内壁面と隔壁間の分室に容易に
発泡原料を注入することができる。(Effects) Since the present invention has the above configuration, even if the distance between the inner wall surface of the mold and the #I wall is small, the foaming raw material can be easily injected into the compartment between the inner wall surface and the partition wall.
従って、この発明の製造方法および成形型を用いて自動
車座席用の異硬度クッション体を製造すれば、両側部の
硬い部分の幅を小とした異硬度クッション体を容易に得
ることができ、座席の着座感を良好にできる。また、型
の隔壁を板バネ状のものとするために薄くでき、得られ
る異硬度クツシヨン体表面のスリット幅を小にすること
ができる。Therefore, by manufacturing a cushion body of different hardness for an automobile seat using the manufacturing method and mold of the present invention, it is possible to easily obtain a cushion body of different hardness in which the width of the hard portions on both sides is small, and the seat Improves seating comfort. Furthermore, since the partition walls of the mold are shaped like a leaf spring, they can be made thinner, and the width of the slits on the surface of the obtained cushion body of different hardness can be made smaller.
その結果、その異硬度クッション体を自動車座席用とし
た場合、着座時にスリット部分から座席が外方向へ開く
のを押さえることもできる。As a result, when the cushion body of different hardness is used for a car seat, it is possible to prevent the seat from opening outward from the slit portion when the person is seated.
第１図はこの発明における成形型の一実施例を示す断面
図、第２図ないし第４図はこの発明により異硬度クッシ
ョン体を製造する際の成形型の断面図、第５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断面図、
第６図ないし第８図は従来の技術を説明する断面図で、
そのうち第６図および第８図は異硬度クッション体の断
面図、第７図は異硬度クツシヨン体製造時を示す成形型
の断面図である。
３６：磁石（固定手段）、３８：型内壁面、４０：隔壁
、４２ａ 、 ４２ｂ 、 ４２ｃ ：分室、４４ａ
、 ４４ｂ 、 ４４ｃ ：発泡原料特許出願人 井
上エムチーピー株式会社第１図
第３図
第４図
第２図
第
図
第８
図
第
図FIG. 1 is a sectional view showing an embodiment of the molding die according to the present invention, FIGS. 2 to 4 are sectional views of the molding die for producing a cushion body of different hardness according to the invention, and FIG. 5 is a sectional view showing an embodiment of the molding die according to the invention. A cross-sectional view of a cushion body with different hardness obtained by implementing
FIGS. 6 to 8 are cross-sectional views explaining the conventional technology,
6 and 8 are cross-sectional views of cushion bodies of different hardness, and FIG. 7 is a cross-sectional view of a mold showing the production of cushion bodies of different hardness. 36: Magnet (fixing means), 38: Mold inner wall surface, 40: Partition wall, 42a, 42b, 42c: Separate chamber, 44a
, 44b, 44c: Foamed raw material patent applicant Inoue MCP Co., Ltd. Figure 1 Figure 3 Figure 4 Figure 2 Figure 8 Figure 8
Claims (2)
分室に区画し、その各分室に異種または異質の発泡原料
をそれぞれ注入し、あるいは各分室に、同一の発泡原料
を充填密度を変えてそれぞれ注入し、発泡させることに
より異硬度クッション体を製造する方法において、型内
壁面と隔壁間の分室に発泡原料を注入する際、その隔壁
を型内中央側へ倒して型内壁面と該隔壁間を広げ、注入
後該隔壁を立てることを特徴とする異硬度クッション体
の製造方法。(1) The inside of the mold is divided into multiple compartments by a partition wall installed on the bottom of the mold, and different or different foaming raw materials are injected into each compartment, or the same foaming raw material is filled into each compartment. In the method of manufacturing cushion bodies of different hardness by injecting with different densities and foaming, when injecting the foaming raw material into the compartment between the inner wall surface of the mold and the partition wall, the partition wall is tilted toward the center of the mold and the foam material is poured into the mold. A method for manufacturing a cushion body of different hardness, characterized by widening the space between the wall surface and the partition wall, and standing the partition wall after injection.
分室に区画してなる異硬度クッション体の成形型におい
て、該隔壁を板バネ状材質からなる可倒なものとすると
もに、該隔壁を型内中央側へ倒した際に、その隔壁を型
内底面に離脱可能に固定する固定手段を、型内底面に設
けたことを特徴とする異硬度クッション体の成形型。(2) In a mold for a cushion body of different hardness in which the inside of the mold is divided into a plurality of compartments by a partition wall installed on the bottom of the mold, the partition wall is made of a leaf spring-like material and is collapsible. A mold for a cushion body of different hardness, characterized in that the inner bottom surface of the mold is provided with fixing means for removably fixing the partition wall to the inner bottom surface of the mold when the partition wall is tilted toward the center of the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1098527A JP2681386B2 (en) | 1989-04-18 | 1989-04-18 | Different hardness cushion body manufacturing method and different hardness cushion body mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1098527A JP2681386B2 (en) | 1989-04-18 | 1989-04-18 | Different hardness cushion body manufacturing method and different hardness cushion body mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02276606A true JPH02276606A (en) | 1990-11-13 |
| JP2681386B2 JP2681386B2 (en) | 1997-11-26 |
Family
ID=14222145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1098527A Expired - Fee Related JP2681386B2 (en) | 1989-04-18 | 1989-04-18 | Different hardness cushion body manufacturing method and different hardness cushion body mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2681386B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001038747A (en) * | 1999-07-27 | 2001-02-13 | Inoac Corp | Mold for foam molding and pad for seat to be molded by the mold |
| JP2001169866A (en) * | 1999-12-17 | 2001-06-26 | Bridgestone Corp | Seat pad for car and method for fabricating the same |
| JP2002200626A (en) * | 2000-11-06 | 2002-07-16 | Tokai Kogyo Co Ltd | Method for manufacturing cushioning material |
| JP2008213160A (en) * | 2007-02-28 | 2008-09-18 | Inoac Corp | Polyurethane foaming mold |
| JP2009107131A (en) * | 2007-10-26 | 2009-05-21 | Inoac Corp | Foam molding mold and foam molding method |
| JP2018103685A (en) * | 2016-12-22 | 2018-07-05 | 株式会社イノアックコーポレーション | Pad for seat and method for manufacturing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101645442B1 (en) * | 2014-09-17 | 2016-08-04 | 한희주 | Dual Hardness Urethane Foam Seat Manufacturing Method for Vehicle |
-
1989
- 1989-04-18 JP JP1098527A patent/JP2681386B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001038747A (en) * | 1999-07-27 | 2001-02-13 | Inoac Corp | Mold for foam molding and pad for seat to be molded by the mold |
| JP2001169866A (en) * | 1999-12-17 | 2001-06-26 | Bridgestone Corp | Seat pad for car and method for fabricating the same |
| JP4491878B2 (en) * | 1999-12-17 | 2010-06-30 | 株式会社ブリヂストン | Method for manufacturing vehicle seat pad |
| JP2002200626A (en) * | 2000-11-06 | 2002-07-16 | Tokai Kogyo Co Ltd | Method for manufacturing cushioning material |
| JP2008213160A (en) * | 2007-02-28 | 2008-09-18 | Inoac Corp | Polyurethane foaming mold |
| JP2009107131A (en) * | 2007-10-26 | 2009-05-21 | Inoac Corp | Foam molding mold and foam molding method |
| JP2018103685A (en) * | 2016-12-22 | 2018-07-05 | 株式会社イノアックコーポレーション | Pad for seat and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2681386B2 (en) | 1997-11-26 |
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