JPH0521598B2 - - Google Patents
Info
- Publication number
- JPH0521598B2 JPH0521598B2 JP27753890A JP27753890A JPH0521598B2 JP H0521598 B2 JPH0521598 B2 JP H0521598B2 JP 27753890 A JP27753890 A JP 27753890A JP 27753890 A JP27753890 A JP 27753890A JP H0521598 B2 JPH0521598 B2 JP H0521598B2
- Authority
- JP
- Japan
- Prior art keywords
- shape
- slab urethane
- base material
- cushion material
- seat cushion
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 52
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 230000014759 maintenance of location Effects 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 8
- 238000005187 foaming Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 210000003491 skin Anatomy 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、軟質ポリウレタンフオームから成る
スラブウレタンを所定の立体形状に形成した車輌
用シートクツシヨン材に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat cushion material for vehicles in which a slab urethane made of soft polyurethane foam is formed into a predetermined three-dimensional shape.
従来の自動車に使用される立体形状のシートク
ツシヨン材は、所定の形状を成形するための発泡
型を準備し、この発泡型で所定の立体形状のシー
トクツシヨン材を発泡成形していた。したがつ
て、種々の形状の車輌用シートクツシヨン材を成
形するには、各種形状毎の発泡型を必要とし、こ
れらを全て設置することは多額の費用と多くの設
定スペースとが要求され、しかも手間と時間とが
比較的かかつた。また、モールド発泡による場合
にははみ出しや発泡むら等による不良材が生ずる
ことは避けられないことであつた。はみ出し部分
は成形後に切断する等の後処理が必要となり、そ
の結果コスト的にも高いものとなつていた。さら
に、従来の立体形状のシートクツシヨン材として
は、モールド発泡によつて生ずる不良材等をチツ
プ状に切断し、これに結合剤を塗布して融媒又は
湿気によつて反応硬化させながらスクラツプを圧
縮してリポンデイングフオームとして製造された
ものも使用されるが、クツシヨン材としては座り
心地が悪く車輌用シートとしては用いられていな
かつた。また、スラブウレタンそのものを直接シ
ートのクツシヨン材とし、このスラブウレタンの
クツシヨン材を被覆する表皮を立体的に縫製加工
することによりクツシヨン材のスラブウレタンを
表皮の立体形状に倣わせるとともに必要に応じて
表皮上にボタンをおき、これをクツシヨン材を貫
通する紐等で引つ張つておき当該ボタン個所のス
ラブウレタンを圧縮して形成したものもあるが、
初めから立体形状にモールド発泡されたクツシヨ
ン材に比べて座り心地も耐久性も悪い、という欠
点があつた。 Conventionally, three-dimensional seat cushion materials used in automobiles have been produced by preparing a foam mold for forming a predetermined shape, and using this foam mold to foam-mold the three-dimensional seat cushion material. Therefore, in order to mold vehicle seat cushion materials of various shapes, foaming molds for each shape are required, and installing all of these molds requires a large amount of money and a large amount of setting space. Moreover, it was relatively labor-intensive and time-consuming. Furthermore, when mold foaming is used, it is inevitable that defective materials will be produced due to extrusion, uneven foaming, etc. The protruding portions require post-processing such as cutting after molding, resulting in high costs. Furthermore, conventional three-dimensional sheet cushion materials are made by cutting defective materials produced by mold foaming into chips, applying a binder to the chips, and then scraping them while reacting and hardening them with a melting medium or moisture. A reponding foam made by compressing it is also used, but it is not comfortable to sit on as a cushion material and has not been used as a vehicle seat. In addition, by using the slab urethane itself as the cushion material of the sheet directly, and by sewing the skin covering the cushion material of this slab urethane in a three-dimensional manner, the slab urethane cushion material can be made to follow the three-dimensional shape of the skin, and as needed. Some products are made by placing a button on the skin, pulling it with a string that passes through the cushion material, and then compressing the slab urethane at the button location.
The disadvantage was that it was less comfortable to sit on and less durable compared to cushion materials that were molded and foamed into a three-dimensional shape.
本発明は、上記事情に鑑みて発明されたもので
あり、市販の安価に手に入るスラブウレタンを溶
易かつ安価に加工して製造コストの安い車輌用シ
ートクツシヨン材を提供すること及びモールド発
泡して得た車輌用シートクツシヨン材と同様の座
り心地や耐久性を有する車輌用シートクツシヨン
材を提供することを目的とするものである。 The present invention was invented in view of the above circumstances, and it is an object of the present invention to provide a sheet cushion material for vehicles that is inexpensive to manufacture by processing slab urethane that is commercially available at low cost and that is easy to melt and at low cost. The object of the present invention is to provide a seat cushion material for a vehicle that has the same sitting comfort and durability as a seat cushion material for a vehicle obtained by foaming.
以下本発明の好適な各種実施例を図面に基づい
て説明する。 Various preferred embodiments of the present invention will be described below based on the drawings.
第１図においては、自動車用シートのクツシヨ
ン材として使用された第１実施例を示し、このシ
ートクツシヨン材１は、フレーム２，３の夫々に
設けられたスプリング機構４，５に取付けられ、
全体が表皮６より被覆されている。 FIG. 1 shows a first embodiment used as a cushion material for an automobile seat, and this seat cushion material 1 is attached to spring mechanisms 4 and 5 provided on frames 2 and 3, respectively.
The entire body is covered with an epidermis 6.
そしてこの自動車用シートクツシヨン材１は、
第２図に示すように所定形状に裁断したスラブウ
レタンの上側の表面に塗布した保型剤上に５mm〜
10mm程度のスラブウレタンから成る基材８を貼付
し、保型剤を固化させてスラブウレタンと基材８
との間に保剤層７を形成するとともに、スラブウ
レタンと基材８とを接着し所定の立体形状を保持
させたものである。前記保型剤は、ポリエーテル
グリコール（ジオール及びトリオール等）及ぼト
リレンジイソシアネート並びにデイフエニールメ
タンジイソシアネート等から合成された遊離のイ
ソシアネート基（NCO）１〜20を含むウレタン
プレポリマーが好ましい。このポリエーテルグリ
コールとトリレンジイソシアネートから生成さ
れ、かつ遊離のイソシアネートを１〜20％含むウ
レタンプレポリマーを保型剤として使用する場
合、例えば50mm厚のスラブウレタンに対しこの保
型剤を表裏面に200ｇ／m2の割でスプレーし、ス
プレーされたスラブウレンタンを金型、樹脂型、
木型等において圧縮し、圧縮後水分の添加又は水
蒸気の注入により反応させて所定の立体形状を得
るものである。その他の保型剤としては、ポリエ
チレンの粉末とかホツトメルト接着剤等の熱可塑
性樹脂又は熱硬化性樹脂等であつても良く、その
他各種の接着剤等を使用することが可能である。
例えば、熱可塑性樹脂を含む接着剤を保型剤とし
て使用する場合、成形型にスラブウレタンを装着
し加圧加熱し、次いで冷却させれば保型剤は硬化
し、保型剤層７が形成され所定の立体形状が保持
される。 This automobile seat cushion material 1 is
As shown in Figure 2, 5mm~
A base material 8 made of slab urethane with a thickness of about 10 mm is pasted, the mold retention agent is solidified, and the slab urethane and base material 8 are bonded.
A retaining layer 7 is formed between the slab urethane and the base material 8 to maintain a predetermined three-dimensional shape. The shape-retaining agent is preferably a urethane prepolymer containing 1 to 20 free isocyanate groups (NCO) synthesized from polyether glycol (diols, triols, etc.), tolylene diisocyanate, diphenylmethane diisocyanate, and the like. When using a urethane prepolymer produced from polyether glycol and tolylene diisocyanate and containing 1 to 20% free isocyanate as a mold retention agent, for example, apply this mold retention agent to the front and back surfaces of a 50 mm thick slab of urethane. Spray at a rate of 200g/ m2 and apply the sprayed slab urethane to molds, resin molds,
It is compressed in a wooden mold or the like, and after compression, it is reacted by adding moisture or injecting steam to obtain a predetermined three-dimensional shape. Other shape-retaining agents may include polyethylene powder, thermoplastic resins such as hot melt adhesives, thermosetting resins, and other various adhesives.
For example, when an adhesive containing a thermoplastic resin is used as a mold retention agent, a slab urethane is attached to a mold, heated under pressure, and then cooled to harden the mold retention agent and form the mold retention agent layer 7. The predetermined three-dimensional shape is maintained.
また第３図の自動車用シートクツシヨン材１
は、所定形状に裁断したスラブウレタンの下側の
表面に塗布した保型剤へ不織布や植物系繊維類等
を固めた板状物等の基材９を貼付し、保型剤を固
化させてスラブウレタンと基材９との間に保型剤
層７を形成するとともに、スラブウレタンと基材
９とを接着し所定の立体形状を保持させたもので
ある。これら基材８，９としては、その他各種の
材質のものを適宜選択して使用することができ
る。自動車用シートクツシヨン材１の表層部を形
成する５mm〜10mm程度のスラブウレタンから成る
基材８を用いた場合、座つたときの感触が保型剤
から形成された保型剤層７に直接的に接触するの
に比べてよりソフトなものに保つことができる。
また、スラブウレタンの下側に基材９を接着した
ものでは、この基材９がスプリング機構４，５に
よつてスラブウレタンが傷つくのを防止したり、
自動車用シートクツシヨン材１の全体の保型性を
保つたりするのに役立つ。 In addition, the seat cushion material 1 for automobiles shown in Fig. 3
In this method, a base material 9 such as a plate-like material made of hardened non-woven fabric or vegetable fibers is applied to the shape preservation agent applied to the lower surface of the urethane slab cut into a predetermined shape, and the shape preservation agent is solidified. A shape retaining agent layer 7 is formed between the slab urethane and the base material 9, and the slab urethane and the base material 9 are bonded together to maintain a predetermined three-dimensional shape. As these base materials 8 and 9, materials of various other materials can be appropriately selected and used. When using the base material 8 made of slab urethane with a thickness of approximately 5 mm to 10 mm, which forms the surface layer of the automobile seat cushion material 1, the feeling when sitting on the seat cushion material 1 is directly applied to the shape preservation agent layer 7 formed from the shape preservation agent. It is possible to keep it softer than when it comes into contact with the surface.
In addition, in the case where the base material 9 is bonded to the lower side of the slab urethane, the base material 9 prevents the slab urethane from being damaged by the spring mechanisms 4 and 5.
This helps maintain the overall shape retention of the automobile seat cushion material 1.
第４図及び第５図は車輌用自動車シートクツシ
ヨン材１の第２実施例であり、スラブウレタンの
下側の表面から複数の切込み１０を形成し、この
切込み１０内に保型剤（図略）を塗布しこれを固
化して保型剤層７を形成したものである。図示す
る実施例では、スラブウレタンの下側の表面から
上側へ向けて切込み１０を入れたが、反対でも良
いこと勿論であり、かつ上下両面から交互に切込
み１０を入れても良い。また、個々の切込み１０
の切込長は夫々形成される車輌用自動車用シート
クツシヨン材１の厚みに応じて区々であつて良
い。このように切込み１０に保型剤層７を形成し
たものでは立体成形が良好となり、表面感触を損
うこともない。 4 and 5 show a second embodiment of an automobile seat cushion material 1 for use in a vehicle, in which a plurality of cuts 10 are formed from the lower surface of the slab urethane, and a shape retaining agent (Fig. ) is applied and solidified to form the mold retaining agent layer 7. In the illustrated embodiment, the cuts 10 are made from the lower surface of the urethane slab toward the upper side, but it goes without saying that the cuts 10 may be made in the opposite direction, and the cuts 10 may be made alternately from both the upper and lower surfaces. In addition, individual cuts 10
The length of the cut may vary depending on the thickness of the automobile seat cushion material 1 to be formed. In the case where the mold retaining agent layer 7 is formed in the cut 10 in this way, three-dimensional molding becomes good and the surface feel is not impaired.
以上説明したように、本発明に係る車輌用シー
トクツシヨン材は、表面感触を損ねるのを防止で
きたり、スプリング機構からシートクツシヨン材
を保護したり、全体の保型剤を高めたりすること
ができ、しかも保型剤層が基材とスラブウレタン
との間に形成されるので表面感触を損ねることな
く多量の保型剤を使用することができ、その結果
車輌用に好適な立体形状を形成保護する機能が向
上する。 As explained above, the vehicle seat cushion material according to the present invention can prevent deterioration of the surface feel, protect the seat cushion material from the spring mechanism, and improve the overall shape retention. Moreover, since a mold retention agent layer is formed between the base material and the slab urethane, a large amount of mold retention agent can be used without impairing the surface feel, and as a result, a three-dimensional shape suitable for vehicles can be created. The ability to form and protect will be improved.
第１図は一部断面の自動車用シートの斜視図、
第２図は車輌用シートクツシヨン材の第１実施例
を示す拡大断面図、第３図は車輌用シートクツシ
ヨン材の第１実施例の変形例を示す断面図、第４
図は車輌用シートクツシヨン材の第２実施例を示
す平面図、第５図は第４図−線断面図であ
る。
１……自動車用シートクツシヨン材、７……保
型材層、８，９……基材、１０……切込み、１１
……スラブウレタン、１２……保型剤。
Fig. 1 is a perspective view of a car seat partially cut away;
FIG. 2 is an enlarged sectional view showing a first embodiment of the seat cushion material for a vehicle, FIG. 3 is a sectional view showing a modification of the first embodiment of the seat cushion material for a vehicle, and FIG.
The figure is a plan view showing a second embodiment of the seat cushion material for a vehicle, and FIG. 5 is a sectional view taken along the line of FIG. 4. DESCRIPTION OF SYMBOLS 1... Automotive sheet cushion material, 7... Shape retention material layer, 8, 9... Base material, 10... Notch, 11
... Slab urethane, 12 ... Shape retention agent.
Claims (1)
ムから成るスラブウレタンの表面に熱可塑性樹脂
又は熱硬化性樹脂等を含み一定の条件下で反応し
て固化する性質を有する保型剤を塗布し、この塗
布面に他のスラブウレタンや不織布あるいは各種
繊維類を固めた板状物等の基材を重ね合わせ、前
記保型剤を固化させて基材とスラブウレタンとの
間に保型剤層を形成するとともに両者を接着し所
定の着座に適した立体形状を保持させた車輌用シ
ートクツシヨン材。1. A shape retaining agent containing thermoplastic resin or thermosetting resin that has the property of reacting and solidifying under certain conditions is applied to the surface of a slab urethane made of flexible polyurethane foam cut into a predetermined shape, and this applied surface is A base material such as another slab urethane, non-woven fabric, or a plate-like material made of hardened various fibers is superimposed on the base material, and the shape retention agent is solidified to form a shape retention agent layer between the base material and the slab urethane. A seat cushion material for vehicles that is made by bonding both together to maintain a three-dimensional shape suitable for seating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27753890A JPH04288189A (en) | 1990-10-16 | 1990-10-16 | Seat cushion material for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27753890A JPH04288189A (en) | 1990-10-16 | 1990-10-16 | Seat cushion material for vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13744380A Division JPS5764084A (en) | 1980-01-23 | 1980-10-01 | Seat cushion material and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04288189A JPH04288189A (en) | 1992-10-13 |
| JPH0521598B2 true JPH0521598B2 (en) | 1993-03-24 |
Family
ID=17584950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27753890A Granted JPH04288189A (en) | 1990-10-16 | 1990-10-16 | Seat cushion material for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04288189A (en) |
-
1990
- 1990-10-16 JP JP27753890A patent/JPH04288189A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04288189A (en) | 1992-10-13 |
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