JPS6144484B2 - - Google Patents
Info
- Publication number
- JPS6144484B2 JPS6144484B2 JP55004534A JP453480A JPS6144484B2 JP S6144484 B2 JPS6144484 B2 JP S6144484B2 JP 55004534 A JP55004534 A JP 55004534A JP 453480 A JP453480 A JP 453480A JP S6144484 B2 JPS6144484 B2 JP S6144484B2
- Authority
- JP
- Japan
- Prior art keywords
- pad
- skin material
- cushion sheet
- peripheral edge
- lower mold
- 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
Links
- 239000000463 material Substances 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 12
- 239000011496 polyurethane foam Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 description 10
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000010097 foam moulding Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 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 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 1
- 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
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-L isophthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC(C([O-])=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-L 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 235000011150 stannous chloride Nutrition 0.000 description 1
- 239000001119 stannous chloride Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
【発明の詳細な説明】
本発明は、クツシヨンシートおよびその製造方
法に関するものである。詳しく述べると、シート
の各部分における荷重の差異に対応するように各
部分に対応するクツシヨン特性を持たせたクツシ
ヨンシートおよびその製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cushion sheet and a method for manufacturing the same. More specifically, the present invention relates to a cushion sheet in which each portion of the sheet has cushion characteristics corresponding to differences in load thereon, and a method for manufacturing the same.
クツシヨンシート、特に自動車、鉄道車両、航
空機等の輸送体の座席用クツシヨンシートは、動
的外力が頻繁に加えられる状態にあるので、着座
者の体の重心安定を保つようにシート各部分にお
いてそれに対応したクツシヨン特性を持たせてお
くのが望ましい。このような目的のために、例え
ばコーナリング時の横揺れによる体の傾斜を防ぐ
ために、シートの座面および背面で周縁部を高く
形成しかつ硬くし、中央部を比較的柔かくする方
法が提案されている。このようなものとしては、
例えば第１図に示すように、表皮材１で覆われた
ポリウレタンフオーム２の周縁部を高く形成する
とともに、この周縁部にパームロツク材３あるい
は硬質ポリウレタンフオームを内蔵させてこの部
分を硬くし、これによりホールド感を付与したク
ツシヨンシートが知られている。また、第２図に
示すように、表皮材１で覆われたポリウレタンフ
オーム２の周縁部を高く形成するとともに、底面
部から周縁部にわたつてフレーム４を内蔵させて
この部分を硬くし、これによりホールド感を付与
したクツシヨンシートも知られている。 Cushion seats, especially cushion seats for seats in transportation vehicles such as automobiles, railway vehicles, and aircraft, are frequently subjected to dynamic external forces, so each part of the seat must be carefully designed to maintain a stable center of gravity of the seated person's body. It is desirable to have cushioning characteristics corresponding to this. For this purpose, a method has been proposed in which the peripheral edges of the seat and back of the seat are made high and hard, and the center part is made relatively soft, in order to prevent the body from tilting due to rolling when cornering. ing. As such,
For example, as shown in FIG. 1, the peripheral edge of a polyurethane foam 2 covered with a skin material 1 is formed high, and a palm locking material 3 or hard polyurethane foam is built into this peripheral edge to make this part hard. Cushion sheets are known that provide a sense of hold. In addition, as shown in FIG. 2, the peripheral edge of the polyurethane foam 2 covered with the skin material 1 is formed high, and a frame 4 is built in from the bottom to the peripheral edge to make this part hard. Cushion sheets that provide a sense of hold are also known.
しかしながら、前者はコーナリング時のホール
ド感が不充分であるばかりでなく、製造時の作業
性も繁雑である。一方、後者はホールド感は満足
し得てもクツシヨン性が低下し、しかも長期間の
使用によりフオーム２とフレーム４とが剥離した
り、あるいは空洞を生じるという欠点があつた。 However, the former not only provides insufficient holding feeling during cornering, but also has complicated workability during manufacturing. On the other hand, the latter has the drawback that although the holding feeling is satisfactory, the cushioning properties are deteriorated, and furthermore, the foam 2 and the frame 4 may separate or form cavities after long-term use.
本発明は、前記のごとき従来品の諸欠点を解消
するためになされたもので、中央部に対し周縁部
を高く形成させたポリウレタンフオームのパツド
の底部に、周囲に多数の環状スプリングをそれぞ
れ独立して突設した支持体を前記スプリングが前
記パツドの周縁部に配置されるように内蔵させ、
かつ前記パツドの表面を表皮材で被覆してなるク
ツシヨンシートである。 The present invention was made in order to eliminate the various drawbacks of the conventional products as described above, and a large number of annular springs are installed independently around the bottom of a polyurethane foam pad whose peripheral edge is formed higher than the center. a supporting body protruding from the pad so that the spring is disposed at a peripheral edge of the pad;
The cushion sheet is made by covering the surface of the pad with a skin material.
このようなクツシヨンシートは、周縁部が凹没
しており吸引装置に連通しかつ多数の吸引孔を穿
設してなる成形用下型に表皮材をを載置し、前記
吸引装置を作動させて前記表皮材を前記下型内面
に密着させ、ついで周囲に環状スプリングを突設
した支持体を前記スプリングが前記凹没部にかつ
前記支持体が下型側に位置するようにセツトした
のち、前記表皮材上にポリウレタン発泡原液を注
入し、さらに成形用上型を閉じて発泡成形するこ
とにより製造される。 In such a cushion sheet, the skin material is placed on a molding mold which has a recessed peripheral edge and is connected to a suction device and has a large number of suction holes, and the suction device is activated. After that, the skin material is brought into close contact with the inner surface of the lower mold, and then a support having an annular spring protruding around the periphery is set so that the spring is in the recessed part and the support is located on the lower mold side. , is manufactured by injecting a polyurethane foam stock solution onto the skin material, then closing the upper mold for foam molding.
つぎに、図面を参照しながら本発明方法を詳細
に説明する。すなわち、第３図に示すように、表
皮材１１を、必要により加熱器（図示せず）で加
熱したのち、成形用下型１２上に載置する。表皮
材としては、ポリ塩化ビニル、ポリエステル等の
合成樹脂のシートの他に、編布、織布等の基布に
ポリ塩化ビニル、ナイロン、ポリウレタン、ポリ
アミノ酸等の合成樹脂を被覆してなるレザー、合
成皮革等が使用される。 Next, the method of the present invention will be explained in detail with reference to the drawings. That is, as shown in FIG. 3, the skin material 11 is placed on the lower mold 12 after being heated with a heater (not shown) if necessary. In addition to sheets of synthetic resin such as polyvinyl chloride and polyester, skin materials include sheets of synthetic resin such as polyvinyl chloride and polyester, as well as leather made of base fabric such as knitted fabric and woven fabric coated with synthetic resin such as polyvinyl chloride, nylon, polyurethane, and polyamino acid. , synthetic leather, etc. are used.
成形用下型１２は、所望のクツシヨンシートの
形状に応じてその底部の周縁に凹没部１３を形成
させたもので、後述するように表皮材１１が密着
する面には多数の吸引孔１４が穿設されている。
この吸引孔１４は下型１２の下部に設けられた吸
引流通路１５に連通し、この吸引流通路１５はさ
らに吸引装置１６に連通している。凹没部１３
は、クツシヨンシートの形状が第７図に示すよう
に三方の周縁部が高く形成されている場合には、
下型１２の三方の周縁部に凹没部１３を形成させ
る。 The lower mold 12 has a recessed part 13 formed at the periphery of its bottom according to the shape of the desired cushion sheet, and has a large number of suction holes on the surface to which the skin material 11 is in close contact, as will be described later. 14 are drilled.
This suction hole 14 communicates with a suction flow passage 15 provided at the lower part of the lower mold 12, and this suction flow passage 15 further communicates with a suction device 16. Recessed part 13
When the shape of the cushion sheet is formed with high peripheral edges on three sides as shown in Fig. 7,
Recessed portions 13 are formed on three peripheral edges of the lower mold 12.
ついで、吸引装置（例えば真空ポンプ）１６を
作動させると、表皮材１１は第４図に示すように
成形用下型１２の内面に吸引されて密着する。さ
らに、前記成形用下型１２の凹没部１３に成形用
中型１７を第５図に示すように立設する。つい
で、第８図に示すような環状支持体１８、例えば
ロ字状ワイヤ製支持体の周縁枠１９に環状スプリ
ング２０を突設したものを、この環状スプリング
２０が前記凹没部１３に位置し、周縁枠が上部に
位置するように治具２２等を用いて、第５図に示
すようにセツトし、このように下型１２に密着し
た表皮材１１上に注入ヘツド２３によりポリウレ
タンの発泡原液を注入する。この支持体１８にお
いて周縁枠１９と環状スプリング２０との連結は
補強材２１を延長して一体的に形成させたもの、
あるいはその場合周縁枠１９に１回巻付けたもの
等があり、また溶接、ろう付け、ボルト締めその
他の手段がある。 Next, when the suction device (for example, a vacuum pump) 16 is activated, the skin material 11 is attracted to the inner surface of the lower mold 12 and comes into close contact with it, as shown in FIG. Further, a middle mold 17 is set upright in the recessed part 13 of the lower mold 12 as shown in FIG. Next, an annular support 18 such as that shown in FIG. Using a jig 22 or the like, set the mold as shown in FIG. inject. In this support body 18, the connection between the peripheral frame 19 and the annular spring 20 is formed integrally by extending the reinforcing member 21;
Alternatively, in that case, it may be wrapped once around the peripheral frame 19, or may be welded, brazed, bolted, or other means.
ついで、成形用上型２４を閉じて所定の温度に
加熱して発泡させてポリウレタンフオームのパツ
ド２５を表皮材１１とともに一体発泡成形させ
る。発泡硬化後は上型２４を除去し、下型１２か
らはずし、第９図に示すように表皮材の末端に芯
材２７等を縫製等により取付け、この個所にオー
ムクリツプ２８等の係合部材により支持体１８に
固定することにより第７図および第９図に示すよ
うなクツシヨンシート２６が得られる。なお、第
９図における第３〜８図と同一の符号はこれと同
一部材を表わす。 Next, the upper mold 24 for molding is closed and heated to a predetermined temperature to cause foaming, thereby integrally foaming the polyurethane foam pad 25 together with the skin material 11. After the foam hardens, the upper mold 24 is removed and removed from the lower mold 12, and as shown in FIG. 9, a core material 27, etc. is attached to the end of the skin material by sewing, etc., and an engaging member such as an ohm clip 28 is attached to this location. By fixing it to the support 18, a cushion sheet 26 as shown in FIGS. Note that the same reference numerals in FIG. 9 as in FIGS. 3 to 8 represent the same members.
発泡原液としては、軟質ポリウレタンフオーム
を生成する液状材料であればいずれも採用でき、
プレポリマー法、部分ポリマー法、ワンシヨツト
法等が通常用いられる。使用されるポリオールと
しては、アジペート系、イソフタレート系、フタ
レート系等のポリエテルポリオール、グリセリン
やプロピレングリコール等の多価アルコールにプ
ロピレンオキサイドやエチレンオキサイドを付加
したポリエーテルポリオール、ポリエーテルポリ
オールにアクリロニトリル、ブタジエン、スチレ
ン等のモノマーを重合して得られるポリマーポリ
オール等がある。また、イソシアネートとして
は、トリレンジイソシアネート、４・4′−ジフエ
ニルメタンジイソシアネート、ジアニリンジイソ
シアネート、ヘキサメチレンジイソシアネート、
メタキシリレンジイソシアネートおよびその他の
ジイソシアネートあるいはその三量体等が使用さ
れる。 Any liquid material that produces soft polyurethane foam can be used as the foaming stock solution.
Prepolymer methods, partial polymer methods, one-shot methods, etc. are commonly used. The polyols used include adipate-based, isophthalate-based, and phthalate-based polyether polyols, polyether polyols in which propylene oxide or ethylene oxide is added to polyhydric alcohols such as glycerin and propylene glycol, acrylonitrile, and polyether polyols. There are polymer polyols obtained by polymerizing monomers such as butadiene and styrene. In addition, as the isocyanate, tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate, dianiline diisocyanate, hexamethylene diisocyanate,
Metaxylylene diisocyanate and other diisocyanates or trimers thereof are used.
また、触媒としては、Ｎ−メチルモルホリン、
Ｎ−エチルモルホリン、トリエチルアミン、Ｎ・
N′−ジメチルベンジルアミン、トリエチレンジ
アミン等の第三級アミン、塩化第一錫、塩化第二
錫、ｎ−トリブチルチンアセテート、ジブチルチ
ンジラウレート等がある。 In addition, as a catalyst, N-methylmorpholine,
N-ethylmorpholine, triethylamine, N-
Examples include tertiary amines such as N'-dimethylbenzylamine and triethylenediamine, stannous chloride, stannic chloride, n-tributyltin acetate, and dibutyltin dilaurate.
第１０図は本発明の他の実施態様を示すもの
で、成形用中型を使用せず、成形用下型１２と成
形用上型２４のみを使用した例である。したがつ
て、同図において第３〜８図と同一の符号は同一
部材を表わす。 FIG. 10 shows another embodiment of the present invention, and is an example in which only a lower mold 12 and an upper mold 24 are used without using a middle mold. Therefore, in this figure, the same reference numerals as in FIGS. 3 to 8 represent the same members.
つぎに、実施例を挙げて本発明をさらに詳細に
説明する。 Next, the present invention will be explained in more detail by giving examples.
実施例
第３図に示すような成形用下型１２上にポリ塩
化ビニルレザーを表皮材１１として載置したの
ち、真空ポンプ１６を作動させてその吸引力によ
り前記レザー１１を下型１２の内面に密着させ
た。ついで、第４図に示すように成形用中型１７
を立設し、さらに治具２２を用いて第８図に示す
ような環状スプリング２０をその周縁枠９に備え
た支持体１８をセツトした。ついで、注入ヘツド
２３よりポリエーテル（NW3000）100重量部、
オクテン酸第一錫1.2重量部、水3.4重量部、
BABCO0.1重量部、Ｎ−メチルモルホリン0.14重
量部、シリコンオイル1.0重量部およびトリレン
ジイソシアネート（Ｔ−80）103（インデツク
ス）よりなる発泡体原液を、液温25℃で型温40℃
の前記レザー１１上に注入し、成形用上型２４を
閉じて160℃で15分間発泡硬化させた。離型後、
レザー１１の端部に芯材２７を縫製したのち、ク
リツプ２８で支持体１８に固定したところ、第７
図および第９図に示すクツシヨンシート２６が得
られた。Example After placing polyvinyl chloride leather as the skin material 11 on a lower mold 12 as shown in FIG. It was placed in close contact with the Next, as shown in FIG.
Further, using a jig 22, a support 18 having an annular spring 20 as shown in FIG. 8 on its peripheral frame 9 was set. Next, 100 parts by weight of polyether (NW3000) was added from the injection head 23,
1.2 parts by weight of stannous octenoate, 3.4 parts by weight of water,
A foam stock solution consisting of 0.1 parts by weight of BABCO, 0.14 parts by weight of N-methylmorpholine, 1.0 parts by weight of silicone oil and tolylene diisocyanate (T-80) 103 (Index) was mixed at a liquid temperature of 25°C and a mold temperature of 40°C.
The mixture was injected onto the laser 11, the upper mold 24 was closed, and the mixture was foamed and cured at 160° C. for 15 minutes. After demolding,
After sewing the core material 27 to the end of the leather 11 and fixing it to the support body 18 with the clip 28, the seventh
A cushion sheet 26 shown in the figures and FIG. 9 was obtained.
以上述べたように、本発明によるクツシヨンシ
ートは、中央部に対し周縁部を高く形成させたポ
リウレタンフオームのパツドの底部に、周囲に多
数の環状スプリングをそれぞれ独立に突設した支
持体を前記スプリングが前記パツドの周縁部に配
置されるように内蔵させ、かつ前記パツドの表面
を表皮材で被覆してなるものであるから、例えば
自動車等の車両の座席として使用した場合、周縁
部に内蔵されている環状スプリングの作用により
コーナリング時の横揺れによる着座者の体の傾斜
を防ぐことができ、重心安定の保持ができ、しか
も常時適度のクツシヨン特性を有している。ま
た、環状スプリングはそれぞれ独立して支持体に
突設されているので、例えば着座者の身体の一部
が周縁突条部を押圧した場合でも荷重部分だけが
独立した環状スプリングの反発力を受けるので、
突条部全体の硬度を保持するために環状スプリン
グの太さを大きくしても極めて良好な緩衝性が得
られる。 As described above, the cushion sheet according to the present invention has a support body having a large number of annular springs protruding independently around the bottom of the polyurethane foam pad whose peripheral edge is formed higher than the center. Since the spring is built in so as to be disposed at the periphery of the pad, and the surface of the pad is covered with a skin material, for example, when used as a seat of a vehicle such as an automobile, the spring is built in so as to be disposed at the periphery of the pad. The action of the annular spring prevents the seated person's body from tilting due to lateral sway during cornering, maintains a stable center of gravity, and provides adequate cushioning characteristics at all times. In addition, since the annular springs are each independently protruding from the support body, even if, for example, a part of the seated person's body presses on the peripheral protrusion, only the loaded part will receive the repulsive force of the independent annular springs. So,
Even if the thickness of the annular spring is increased in order to maintain the hardness of the entire protrusion, extremely good cushioning performance can be obtained.
また、このようなクツシヨンシートは、周縁部
が凹没しており吸引装置に連通しかつ多数の吸引
孔を穿設してなる成形用下型に表皮材を載置し、
前記吸引装置を作動させて前記表皮材を前記下型
内面に密着させ、ついで周囲に環状スプリングを
突設した支持体を前記スプリングが前記凹没部に
かつ前記支持体が下型側に位置するようにセツト
したのち、前記表皮体上にポリウレタン発泡原液
を注入し、さらに成形用上型を閉じて発泡成形す
ることにより製造されるものであるから、表皮材
と一体的に発泡成形を行なうことができ、作業性
が良好であり、特に従来法のように周縁部にパー
ムロツクや硬質ポリウレタンフオームを内蔵する
方法に比し、作業性の向上が著しい。また、環状
スプリングを使用するため、長期間の使用によつ
ても剥離や空洞の生成の心配はなく、耐久性が大
きく、長期間にわたつて体の傾斜による重心安定
の保持効果がある。 In addition, such a cushion sheet is produced by placing the skin material on a molding mold having a recessed peripheral edge, communicating with a suction device, and having a large number of suction holes.
The suction device is operated to bring the skin material into close contact with the inner surface of the lower mold, and then a support having an annular spring protruding around the periphery is positioned so that the spring is in the recessed part and the support is on the lower mold side. After setting the foam as described above, the polyurethane foam stock solution is injected onto the skin material, and the upper mold is closed to perform foam molding. Therefore, the foam molding is performed integrally with the skin material. This method has good workability, especially compared to conventional methods in which a palm lock or hard polyurethane foam is built into the periphery, and the workability is significantly improved. In addition, since an annular spring is used, there is no fear of peeling or cavity formation even after long-term use, and the product is highly durable and has the effect of maintaining a stable center of gravity by tilting the body over a long period of time.
第１〜２図は従来のクツシヨンシートの断面
図、第３〜６図は本発明によるクツシヨンシート
の製造工程を表わす断面図、第７図は本発明によ
るクツシヨンシートの斜視図、第８図は本発明に
よるクツシヨンシートに使用される支持体の斜視
図、第９図は本発明によるクツシヨンシートの断
面図であり、また第１０図は本発明によるクツシ
ヨンシートの他の製造方法を表わす断面図であ
る。
１１……表皮材、１２……下型、１３……凹没
部、１４……吸引孔、１６……吸引装置、１７…
…中型、１８……支持体、２０……環状スプリン
グ、２２……治具、２４……上型、２５……ポリ
ウレタンフオームのパツド、２６……クツシヨン
シート。
1 to 2 are sectional views of a conventional cushion sheet, 3 to 6 are sectional views showing the manufacturing process of the cushion sheet according to the present invention, and 7 are perspective views of the cushion sheet according to the present invention. FIG. 8 is a perspective view of a support used in the cushion sheet according to the invention, FIG. 9 is a sectional view of the cushion sheet according to the invention, and FIG. 10 is a diagram showing another method for manufacturing the cushion sheet according to the invention. FIG. 3 is a cross-sectional view illustrating the method. DESCRIPTION OF SYMBOLS 11... Skin material, 12... Lower mold, 13... Recessed part, 14... Suction hole, 16... Suction device, 17...
... Medium size, 18 ... Support body, 20 ... Annular spring, 22 ... Jig, 24 ... Upper mold, 25 ... Polyurethane foam pad, 26 ... Cushion sheet.
Claims (1)
レタンフオームのパツドの底部に、周囲に多数の
環状スプリングをそれぞれ独立して突設した支持
体を前記スプリングが前記パツドの周縁部に配置
されるように内蔵させ、かつ前記パツドの表面を
表皮材で被覆してなるクツシヨンシート。 ２ 支持体は口字状のワイヤである特許請求の範
第１項に記載のクツシヨンシート。[Scope of Claims] 1. At the bottom of a polyurethane foam pad whose peripheral edge is formed higher than the center, a support body having a number of annular springs protruding independently around the periphery is attached so that the springs are connected to the peripheral edge of the pad. 1. A cushion sheet which has a built-in pad so as to be placed in the pad, and the surface of the pad is covered with a skin material. 2. The cushion sheet according to claim 1, wherein the support is a mouth-shaped wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP453480A JPS56102208A (en) | 1980-01-21 | 1980-01-21 | Cushion sheet and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP453480A JPS56102208A (en) | 1980-01-21 | 1980-01-21 | Cushion sheet and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56102208A JPS56102208A (en) | 1981-08-15 |
| JPS6144484B2 true JPS6144484B2 (en) | 1986-10-03 |
Family
ID=11586704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP453480A Granted JPS56102208A (en) | 1980-01-21 | 1980-01-21 | Cushion sheet and method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56102208A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166919U (en) * | 1983-04-22 | 1984-11-08 | 株式会社学習研究社 | Mold type for cushion body |
| JPS59166918U (en) * | 1983-04-22 | 1984-11-08 | 株式会社東洋クオリティワン | Mold type for cushion body |
| JP2522234B2 (en) * | 1992-01-10 | 1996-08-07 | 株式会社戸上電機製作所 | Electromagnetic shock absorber |
| JP6420167B2 (en) * | 2015-02-10 | 2018-11-07 | しげる工業株式会社 | Vehicle seat, its pad, and pad manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034457A (en) * | 1973-07-31 | 1975-04-02 | ||
| JPS5350278A (en) * | 1976-10-19 | 1978-05-08 | Toyota Auto Body Co Ltd | Manufacture of springgbuilt in sheet |
-
1980
- 1980-01-21 JP JP453480A patent/JPS56102208A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034457A (en) * | 1973-07-31 | 1975-04-02 | ||
| JPS5350278A (en) * | 1976-10-19 | 1978-05-08 | Toyota Auto Body Co Ltd | Manufacture of springgbuilt in sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56102208A (en) | 1981-08-15 |
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