JPH0679777A - Production of seat cushion - Google Patents

Production of seat cushion

Info

Publication number
JPH0679777A
JPH0679777A JP4260813A JP26081392A JPH0679777A JP H0679777 A JPH0679777 A JP H0679777A JP 4260813 A JP4260813 A JP 4260813A JP 26081392 A JP26081392 A JP 26081392A JP H0679777 A JPH0679777 A JP H0679777A
Authority
JP
Japan
Prior art keywords
shape
seating
seat cushion
pad material
seating surface
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
JP4260813A
Other languages
Japanese (ja)
Inventor
Kenji Matsuzaki
賢治 松崎
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.)
Araco Co Ltd
Original Assignee
Araco Co Ltd
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 Araco Co Ltd filed Critical Araco Co Ltd
Priority to JP4260813A priority Critical patent/JPH0679777A/en
Publication of JPH0679777A publication Critical patent/JPH0679777A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To produce a seat cushion having seating surfaces different in shape by one mold. CONSTITUTION:In the production of a seat cushion having a cushion pad material 1 and supporting the hips of a seating person by the pad material 1, the material quality of at least the seating part 2 of the seating person of the pad material 1 is composed of shape memory urethane and external force is applied to the seating surface 21 of the seating part 2 molded by a specific mold at the predetermined shape recovery temp. of shape memory urethane or higher to deform the seating surface 21 into an arbitrary shape and the temp. of the seating part 2 is made lower than the shape recovery temp. in this deformed state to set the seating surface 21 to an arbitrary shape.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、シートクッションの製
造方法に関し、特に製造工程を簡単にした異なる形状の
シートクッションの製造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 a method of manufacturing a seat cushion, and more particularly to a method of manufacturing a seat cushion having different shapes by simplifying the manufacturing process.

【0002】[0002]

【従来の技術】従来、車両等のシートのシートクッショ
ンにおいて、ウレタン製パッド材を使用している。この
ウレタン製パッド材は発泡型により成形されている。図
3は従来のウレタン製パッド材の全体を示し、図4はこ
のウレタン製パッド材の製造方法を示している。図3及
び図4において、ウレタン製パッド材5は着座部分6及
び一対の側縁部分7・8からなっている。なお61は着
座部分6の着座面である。このウレタン製パッド材5は
発泡型9にて発泡成形される。この発泡型9は上型91
及び下型92からなっている。一般的には一つの発泡型
にて成形されるウレタン製パッド材の形状は固定されて
いるので、形状の異なるウレタン製パッド材を発泡成形
するためには、それぞれの形状毎に異なる発泡型が必要
となる。特に着座面は異なる形状のものが必要とされる
ので、異なる形状の着座面毎に異なる発泡型が必要にな
る。
2. Description of the Related Art Conventionally, a urethane pad material has been used in a seat cushion of a vehicle seat or the like. This urethane pad material is formed by a foaming mold. FIG. 3 shows the entire conventional urethane pad material, and FIG. 4 shows a method for manufacturing this urethane pad material. In FIGS. 3 and 4, the urethane pad material 5 includes a seating portion 6 and a pair of side edge portions 7 and 8. Reference numeral 61 is a seating surface of the seating portion 6. The urethane pad material 5 is foam-molded by a foam mold 9. This foam mold 9 is an upper mold 91
And a lower mold 92. Generally, the shape of the urethane pad material molded with one foaming mold is fixed, so in order to foam-mold urethane pad materials with different shapes, different foaming molds are required for each shape. Will be needed. Especially, since the seating surfaces are required to have different shapes, different foaming molds are required for the seating surfaces having different shapes.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上述の
ように形状の異なるウレタン製パッド材毎に別個の発泡
型を用意することは、きわめて煩雑である。また前記別
個の発泡型を用意することはコストの増加になる。した
がって本発明の課題は、上述の欠点をなくし、製造工程
を簡単にし、一つの発泡型で異なる形状のパッド材を形
成できかつ製造コストを低下させることのできるシート
クッションの製造方法を提供することである。
However, it is extremely complicated to prepare a separate foaming mold for each urethane pad material having a different shape as described above. Further, preparing the separate foaming mold increases the cost. Therefore, an object of the present invention is to provide a method for manufacturing a seat cushion, which eliminates the above-mentioned drawbacks, simplifies the manufacturing process, can form pad materials having different shapes with one foaming mold, and can reduce the manufacturing cost. Is.

【0004】[0004]

【課題を解決するための手段】上記課題を解決するた
め、本発明の構成は、クッション性パッド材を有し、着
座者の尻部を前記パッド材で支持するシートクッション
の製造方法において、前記パッド材の少なくとも前記着
座者の着座部分の材質を形状記憶ウレタンとし、特定の
成形型で成形した前記着座部分の着座面に前記形状記憶
ウレタンの所定の形状回復温度以上にて外力を加えて、
前記着座面を任意の形状に変形させ、この変形状態で前
記着座部分の温度を前記形状回復温度より低くして、前
記着座面を前記任意の形状とすることである。
In order to solve the above-mentioned problems, the structure of the present invention is a method for manufacturing a seat cushion, which has a cushioning pad material and supports the hips of a seated person with the pad material. At least the material of the seated portion of the seated person of the pad material is a shape memory urethane, an external force is applied to the seating surface of the seated portion molded with a specific molding die at a predetermined shape recovery temperature of the shape memory urethane or higher,
The seating surface is deformed into an arbitrary shape, and in this deformed state, the temperature of the seating portion is made lower than the shape recovery temperature so that the seating surface has the arbitrary shape.

【0005】[0005]

【作用】上記構成のシートクッションの製造方法におい
て、パッド材の少なくとも着座者の着座部分の材質を形
状記憶ウレタンとし、特定の成形型で成形した前記着座
部分の着座面に前記形状記憶ウレタンの所定の形状回復
温度以上にて外力を加えて任意の形状に変形させ、この
変形状態で前記着座部分の温度を前記形状回復温度より
低くして、前記着座面を前記任意の形状としているの
で、一つの特定の成形型にて任意の異なる形状の着座面
を有するウレタン製パッド材を製造することができる。
In the method of manufacturing a seat cushion having the above structure, at least the seating portion of the seated person of the pad material is made of shape memory urethane, and the shape memory urethane is predetermined on the seating surface of the seating portion formed by a specific molding die. The external force is applied at a temperature equal to or higher than the shape recovery temperature to deform it into an arbitrary shape, and in this deformed state, the temperature of the seating portion is made lower than the shape recovery temperature to make the seating surface the arbitrary shape. Urethane pad materials having seating surfaces of any different shape can be manufactured in one specific mold.

【0006】[0006]

【実施例】次に、本発明の一実施例を図面を参照しなが
ら説明する。図1は前記一実施例の製造方法で製造され
るウレタン製パッド材の断面構造を示し、図2は図1に
示すウレタン製パッド材の変形方法を示す。図1におい
て、シートクッションのウレタン製パッド材1は、クッ
ション性を有し着座者の尻部を支持するものであり、着
座部分2及びこの着座部分2の両側に接着されている一
対の側縁部分3・4からなる。着座部分2は形状記憶ウ
レタン製のものであり、着座部分2において、21は着
座面であり、22は底面である。また一対の側縁部分3
・4は形状記憶できないウレタン製のものである。更に
図1において、着座面21の中央部の底面22からの高
さa0 は、発泡成形型にて成形されたままのものであ
る。また前記高さa2 は、前記形状記憶ウレタンの所定
の形状回復温度以上の温度において、前記高さa0 の状
態の前記着座面21に外力を加えて変形しその後前記形
状回復温度以下にした状態のものである。更に前記高さ
1 は、前記高さa2 の着座部分2の温度を形状記憶ウ
レタンの所定の形状回復温度以上の温度にしたときに、
前記高さが前記変形前のもとの前記高さa0 まで回復す
る途中の形状を示している。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a cross-sectional structure of a urethane pad material manufactured by the manufacturing method of the above-described embodiment, and FIG. 2 shows a modification method of the urethane pad material shown in FIG. In FIG. 1, a urethane pad material 1 of a seat cushion has a cushioning property and supports a butt part of a seated person, and a seating portion 2 and a pair of side edges bonded to both sides of the seating portion 2 are provided. It consists of parts 3 and 4. The seating portion 2 is made of shape memory urethane. In the seating portion 2, 21 is a seating surface and 22 is a bottom surface. Also, a pair of side edge portions 3
・ 4 is made of urethane that cannot remember its shape. Further, in FIG. 1, the height a 0 from the bottom surface 22 of the central portion of the seating surface 21 is that which is still formed by the foaming mold. Further, the height a 2 is set to a temperature equal to or lower than the predetermined shape recovery temperature of the shape memory urethane by applying an external force to the seating surface 21 in the state of the height a 0 to deform it. It is in the state. Further the height a 1 is, when the temperature of the seating section 2 of the height a 2 into a predetermined shape recovery temperature above the temperature of the shape memory polyurethane,
The shape is in the process of recovering the height to the original height a 0 before the deformation.

【0007】図2は、前記着座部分2の時間対温度のグ
ラフ(a)と時間対形状のグラフ(b)からなる。グラ
フ(a)において、時間t0 から時間t1 までは、温度
が前記形状回復温度F2 より低いF1 であり、時間t1
を越えた時点からは、温度が前記形状回復温度F2 より
高いF3 である。グラフ(b)において、時間t0 から
時間t1 までは、前記高さがa2 であり、時間t1 を越
えた時点からは、前記高さが直線的にa0 まで変化す
る。前記高さがa0 まで回復した時間をt3 とする。な
お時間t1 から時間t3 までの時間間隔をT0 とする。
前記高さが回復する途中で、前記高さがa1 になった時
間をt2 とする。なお時間t1 から時間t2 までの時間
間隔をT1 とする。したがって時間t2 で温度を前記F
1 にすると、前記高さはa1 のまま固定される。このよ
うにして、一つの発泡型を使用するのみで着座面21の
形状を任意に異なる形状に変形することができる。
FIG. 2 is composed of a time-temperature graph (a) and a time-shape graph (b) of the seating portion 2. In the graph (a), from time t 0 to time t 1 , the temperature is F 1 lower than the shape recovery temperature F 2 and the time t 1
From the time of exceeding a higher F 3 than the temperature the shape recovery temperature F 2. In the graph (b), the height is a 2 from the time t 0 to the time t 1 , and after the time t 1 is exceeded, the height changes linearly to a 0 . The time when the height is restored to a 0 is t 3 . The time interval from time t 1 to time t 3 is T 0 .
Let t 2 be the time when the height becomes a 1 during the recovery of the height. The time interval from time t 1 to time t 2 is T 1 . Therefore, at time t 2 , the temperature is changed to F
When set to 1 , the height is fixed as a 1 . In this way, the shape of the seating surface 21 can be arbitrarily changed to a different shape by using only one foaming mold.

【0008】[0008]

【発明の効果】以上詳細に説明したように、本発明のシ
ートクッションの製造方法によれば、一つの特定の発泡
型を使用して任意の異なる形状の着座面を有するシート
クッションを製造することができる。このため本発明の
シートクッションの製造方法によれば、異なる形状の着
座面を有するシートクッションの製造工程を簡単にし、
かつ製造コストを低下させることができる。
As described in detail above, according to the method for manufacturing a seat cushion of the present invention, a seat cushion having a seating surface of an arbitrary different shape can be manufactured by using one specific foam mold. You can Therefore, according to the seat cushion manufacturing method of the present invention, the manufacturing process of the seat cushion having seating surfaces of different shapes is simplified,
Moreover, the manufacturing cost can be reduced.

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

【図1】本発明の一実施例により製造されるシートクッ
ションの断面図である。
FIG. 1 is a cross-sectional view of a seat cushion manufactured according to an embodiment of the present invention.

【図2】前記本発明の一実施例によるシートクッション
の製造方法の説明用グラフである。
FIG. 2 is an explanatory graph of a seat cushion manufacturing method according to an embodiment of the present invention.

【図3】従来例の製造方法によるシートクッションの斜
視図である。
FIG. 3 is a perspective view of a seat cushion manufactured by a conventional manufacturing method.

【図4】図3のIV−IV断面図である。4 is a sectional view taken along line IV-IV in FIG.

【符号の説明】[Explanation of symbols]

1 パッド材 2 着座部分 21 着座面 F2 形状記憶ウレタンの形状回復温度1 Pad material 2 Seated portion 21 Seated surface F 2 Shape memory Urethane shape recovery temperature

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 B29K 105:04 B29L 31:58 4F ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location B29K 105: 04 B29L 31:58 4F

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 クッション性パッド材を有し、着座者の
尻部を前記パッド材で支持するシートクッションの製造
方法において、前記パッド材の少なくとも前記着座者の
着座部分の材質を形状記憶ウレタンとし、特定の成形型
で成形した前記着座部分の着座面に前記形状記憶ウレタ
ンの所定の形状回復温度以上にて外力を加えて、前記着
座面を任意の形状に変形させ、この変形状態で前記着座
部分の温度を前記形状回復温度より低くして、前記着座
面を前記任意の形状とすることを特徴とするシートクッ
ションの製造方法。
1. A method of manufacturing a seat cushion, comprising a cushioning pad material, wherein the back of a seated person is supported by the pad material, wherein the material of at least the seated portion of the seated person of the pad material is shape memory urethane. , An external force is applied to the seating surface of the seating portion formed by a specific molding die at a temperature equal to or higher than a predetermined shape recovery temperature of the shape memory urethane to deform the seating surface into an arbitrary shape, and the seating surface is deformed in this deformed state. A method for manufacturing a seat cushion, characterized in that a temperature of a portion is made lower than the shape recovery temperature so that the seating surface has the arbitrary shape.
JP4260813A 1992-09-03 1992-09-03 Production of seat cushion Pending JPH0679777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4260813A JPH0679777A (en) 1992-09-03 1992-09-03 Production of seat cushion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4260813A JPH0679777A (en) 1992-09-03 1992-09-03 Production of seat cushion

Publications (1)

Publication Number Publication Date
JPH0679777A true JPH0679777A (en) 1994-03-22

Family

ID=17353116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4260813A Pending JPH0679777A (en) 1992-09-03 1992-09-03 Production of seat cushion

Country Status (1)

Country Link
JP (1) JPH0679777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT2468U1 (en) * 1997-06-23 1998-11-25 Macher David SEAT, PARTICULAR VEHICLE SEAT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT2468U1 (en) * 1997-06-23 1998-11-25 Macher David SEAT, PARTICULAR VEHICLE SEAT

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