JPH0339807B2 - - Google Patents
Info
- Publication number
- JPH0339807B2 JPH0339807B2 JP61229529A JP22952986A JPH0339807B2 JP H0339807 B2 JPH0339807 B2 JP H0339807B2 JP 61229529 A JP61229529 A JP 61229529A JP 22952986 A JP22952986 A JP 22952986A JP H0339807 B2 JPH0339807 B2 JP H0339807B2
- Authority
- JP
- Japan
- Prior art keywords
- skin
- layer pad
- sheet
- pad
- bottom layer
- 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
- 239000010410 layer Substances 0.000 claims description 29
- 239000002344 surface layer Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims 1
- 210000003491 skin Anatomy 0.000 description 57
- 239000000463 material Substances 0.000 description 13
- 238000009958 sewing Methods 0.000 description 13
- 238000005304 joining Methods 0.000 description 12
- 235000019589 hardness Nutrition 0.000 description 10
- 238000007796 conventional method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 210000002615 epidermis Anatomy 0.000 description 4
- 238000010097 foam moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 235000019587 texture Nutrition 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 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
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、クツシヨン体とその表皮体とを上面
において一体成形して成るシート、及びそのよう
なシートの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sheet formed by integrally molding a cushion body and a skin body thereof on the upper surface thereof, and a method for manufacturing such a sheet.
車両用などのシート（座席）を製造する従来の
方法として、シート表面形状に真空成形された、
シート上面部分をおおう表皮とパツド（クツシヨ
ン体）とを一体成形し、この表皮の周縁に別に用
意した側面用の表皮を縫製加工で接合する技術が
特開昭49−76653号公報に開示されている。第５
図はこのような従来技術を説明する略示断面図で
あり、シートの上面部分をおおうに足りる寸法の
上面表皮Ａを適宜成形型に入れてシート表面形状
に真空成形し、その上（第５図とは逆に倒立した
状態）へウレタン原液を注入して発泡させ、クツ
シヨン体Ｂを成形する。成形型から取り出し逆さ
にすると第５図実線のような状態となり、クツシ
ヨン体Ｂはその上表面において表皮Ａと一体に接
合している。表皮Ａの周縁ａはクツシヨン体Ｂの
側面Ｃに接合せず離れており、ここに側面用の別
の表皮が、片側だけに鎖線Ｄで略示するように縫
着され、クツシヨン体側面Ｃを包む。
The conventional method of manufacturing seats for vehicles, etc. is to vacuum form the seat surface shape.
JP-A-49-76653 discloses a technique in which a skin covering the upper surface of the seat and a pad (cushion body) are integrally molded, and a separately prepared side skin is joined to the periphery of this skin by sewing. There is. Fifth
The figure is a schematic sectional view illustrating such a conventional technique, in which an upper surface skin A having a size sufficient to cover the upper surface of the sheet is appropriately placed in a mold, vacuum-formed to the shape of the sheet surface, and then A urethane stock solution is injected into the inverted state (contrary to the figure) and foamed to form the cushion body B. When taken out from the mold and turned upside down, the cushion body B is in a state as shown by the solid line in FIG. 5, and the cushion body B is integrally joined to the skin A at its upper surface. The peripheral edge a of the skin A is not joined to the side surface C of the cushion body B, but is separated therefrom, and another skin for the side surface is sewn on only one side as schematically indicated by the dashed line D. wrap
しかし、この従来方法においては、側面表皮Ｄ
をクツシヨン体側面Ｃからわずかしか突出してい
ない周縁ａに縫い合わせる時、縫い合わせ部分か
らほぼ垂直におりている側壁Ｃが邪魔になり、縫
製加工が事実上非常に困難である。事実、通常使
用されている平ベツド型のミシンでは加工が不可
能であり、ポスト型のミシンを使用するとして
も、シート形状が単純なものであることを前提と
して、特殊な専用治具を使用して初めて可能にな
るものである。 However, in this conventional method, the lateral epidermis D
When sewing the cloth to the peripheral edge a which only slightly protrudes from the side surface C of the cushion body, the side wall C which extends almost perpendicularly from the seamed portion becomes an obstacle, making the sewing process practically very difficult. In fact, it is impossible to process with the commonly used flatbed sewing machines, and even if a post-type sewing machine is used, a special dedicated jig is required, assuming that the sheet shape is simple. This is only possible if you do so.
縫製加工に代えて、ウエルダー等の接合方法に
よろうとすれば、上面表皮と側面表皮が同一素材
である場合はともかく、異質素材を使用条件に耐
え得る確実な強度で接合するのは縫製と同様にき
わめて困難である。 If you try to use a joining method such as welding instead of sewing, even if the top skin and side skin are made of the same material, it is the same as sewing that joins different materials with reliable strength that can withstand the usage conditions. It is extremely difficult.
特に自動車用座席は、そのデザイン、形状、材
質、性能など種々の面において多様化した要求が
次々と出てくるので、従来の方法によつては、形
状や素材の点に制約があり、とてもすべてには対
応しきれないという問題点がある。 In particular, automobile seats are facing increasingly diversified requirements in terms of design, shape, materials, performance, etc., so conventional methods have limitations in terms of shape and materials and are very difficult to use. The problem is that we cannot respond to everything.
このため、予め上面部と側面部とを接合してあ
る表皮を用いて一体成形座席を製造する方法が先
に知られている（特開昭60−234809号、或いは特
開昭58−218989号＝特公平１−34077号＝特許第
1552390号、いずれも本出願人の所有で、本件出
願の発明者と同一発明者）。この先行技術は、上
に述べたデザインの多様化などに対応できる利点
はあるものの、難点としては、表皮を金型にセツ
トする時、その側面部を裏返して金型側面に垂さ
なければならず、また発泡体が成形金型から取り
出された後、再び表皮側面部を裏返して元に戻さ
なければならない点で、作業が煩雑であること
と、表皮側面部の再度の反転作業で表皮を傷める
おそれがあることが認められる。 For this reason, a method of manufacturing an integrally molded seat using a skin whose top and side parts are joined in advance has been known (Japanese Patent Application Laid-Open No. 60-234809 or JP-A No. 58-218989). =Special Publication No. 1-34077=Patent No.
No. 1552390, both owned by the applicant and the same inventor as the inventor of this application). Although this prior art has the advantage of being able to accommodate the diversification of designs mentioned above, the drawback is that when setting the skin in the mold, the side part of the skin must be turned over and hung on the side of the mold. Furthermore, after the foam is taken out of the mold, the side surface of the skin must be turned over and returned to its original state, which is a complicated process. It is recognized that there is a risk of injury.
さらに、表皮と一体成形したシートは少なくと
もその表面部分において表皮とクツシヨン体が全
面接着されるために、一体成形でなく事後的縫製
加工により表皮をクツシヨン体に結合したシート
に比較して、表面の風合が硬くなる傾向がある。
この解決策として最もてつとり早いのはクツシヨ
ン体の硬度を下げることであるが、第５図に示す
ような従来技術で成形する場合、又は前記した特
開昭60−234809号及び同58−218989号などにおい
ては、クツシヨン体の硬度を部分的に調節するこ
とができないのでシート全体が軟らかくなり、ク
ツシヨン性能や耐久性能に悪影響を及ぼすという
問題がある。 Furthermore, since a sheet that is integrally molded with the outer skin has the outer skin and the cushion body fully adhered at least in its surface area, the outer skin is bonded to the cushion body by subsequent sewing processing rather than integral molding, so that the surface The texture tends to be stiff.
The quickest way to solve this problem is to lower the hardness of the cushion body, but if molding is performed using the conventional technique as shown in FIG. In No. 218989 and the like, there is a problem in that the hardness of the cushion body cannot be adjusted locally, so the entire sheet becomes soft, which adversely affects the cushion performance and durability.
このような、表皮接合作業の困難性、シート形
状や素材の選択の自由に対する制約、表皮の部分
的反転一再反転の煩雑さ及び一体成形シートの表
面硬度の調節の不自由さなどの問題を解決しよう
として本発明は、表皮が上面と側面とで別素材で
ある場合も、また要求されるシート形状が単純で
ない場合も、表皮の上面と側面を何らの困難なく
容易確実に接合することができると共に一体成形
座席の上面における硬さをシート全体に悪影響を
及ぼすことなく調節できるようにした、一体成形
シートの製造方法を提供することを目的とする。
Solved problems such as the difficulty in joining the skin, restrictions on the freedom of selection of sheet shape and material, the complexity of partially inverting and re-inverting the skin, and the inconvenience of adjusting the surface hardness of the integrally formed sheet. The present invention makes it possible to easily and reliably join the top and side surfaces of the skin without any difficulty, even when the top and side surfaces of the skin are made of different materials or when the required sheet shape is not simple. Another object of the present invention is to provide a method for manufacturing an integrally molded seat that allows the hardness of the upper surface of the integrally molded seat to be adjusted without adversely affecting the entire seat.
上記目的を達成するため、本発明は、シートを
構成するクツシヨン体を表面に近い表層パツド
と、底部に近い底層パツドとに分割して発泡成形
することとし、表層パツツドの発泡成形に際しシ
ート上面をおおう上面用表皮だけを表層パツドと
一体成形し、この成形物の周縁に残した上面用表
皮の自由縁に、別に用意した側面用表皮を、シー
トクツシヨン体の側面に全く邪魔されることな
く、縫着その他により自由且つ容易に接合し、そ
の後クツシヨン体の全体厚さを完成するに足る、
別発泡成形した底層パツドを表層パツドの下表面
に接着その他により接合するようにしたものであ
る。
In order to achieve the above object, the present invention divides the cushion body constituting the sheet into a surface layer pad near the surface and a bottom layer pad near the bottom and performs foam molding, and when foam molding the surface layer pad, the top surface of the sheet is Only the covering upper surface skin is molded integrally with the surface layer pad, and the side surface skin prepared separately is attached to the free edge of the upper surface skin left around the periphery of this molded material, without being obstructed by the side surfaces of the seat cushion body. , freely and easily joined by sewing or otherwise, and then sufficient to complete the entire thickness of the cushion body;
A separately foam-molded bottom layer pad is bonded to the lower surface of the surface layer pad by adhesive or other means.
本発明によれば、表皮が一体成形されるのは、
シート表面に近い或る厚みの表層パツドに対して
だけであるから、上面用表皮の周縁に側面用表皮
を縫着その他により接合する時、接合線より下に
は何ら障害物がなく、接合作用は例えば通常の平
ベツド型のミシンを用いても、きわめて容易且つ
自由に実行できる。これはクツシヨン体のデザイ
ン・形状が単純でないものの場合でも同様であ
り、シートのデザインの自由度を大幅に高めるも
のである。また、表皮素材が上面と側面とで異質
であつてもよいから、素材選択の自由度をも高め
る。
According to the present invention, the skin is integrally formed by:
Since this is only applied to the surface layer pad of a certain thickness near the sheet surface, when the side surface skin is sewn or otherwise joined to the periphery of the top surface skin, there are no obstacles below the joining line, and the joining action cannot be interrupted. This can be carried out very easily and freely using, for example, an ordinary flat bed sewing machine. This is true even when the design and shape of the cushion body are not simple, and greatly increases the degree of freedom in the design of the seat. Furthermore, since the skin material may be of different quality between the top surface and the side surface, the degree of freedom in material selection is increased.
さらに、本発明によれば、表層パツドと底層パ
ツドは別に成形されるから、それぞれの硬度を変
えることは自由であり、例えば表皮と一体成形さ
れるため硬い風合いとなる表面の硬さを緩和する
ため表層パツドを軟質発泡体とし、これを補完し
て適度の全体的硬度とするため底層パツドは硬質
発泡体として調節をはかることができる。 Further, according to the present invention, since the surface layer pad and the bottom layer pad are molded separately, it is possible to change the hardness of each. For example, since they are integrally molded with the skin, the hardness of the surface, which has a hard texture, can be reduced. Therefore, the surface layer pad can be made of soft foam, and the bottom layer pad can be adjusted to be made of hard foam to complement this and provide a suitable overall hardness.
図面を参照して本発明の実施例について説明す
る。
Embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の方法により製造された分割型
一体成形シートの縦断端面図である。シートを構
成するクツシヨン体は表層パツド２と、その下表
面３に接着又はその他の手段により結合された底
層パツド６として、異なる硬度、好適には表層パ
ツドが軟質で、底層パツドがこれより硬質とした
発泡体から構成される。表層パツド２は或る厚み
T1を有し、この厚みT1は表層パツド２の全体を
通じて同ーである必要はない。 FIG. 1 is a longitudinal cross-sectional end view of a split integrally molded sheet produced by the method of the present invention. The cushion body constituting the sheet has a surface pad 2 and a bottom pad 6 bonded to its lower surface 3 by adhesive or other means, with different hardnesses, preferably the surface pad being soft and the bottom pad being harder. Constructed from foam. The surface pad 2 has a certain thickness
T 1 , and this thickness T 1 need not be the same throughout the surface pad 2 .
底層パツド６の厚みT2も同様に、例えば側部
と内部とで異なつていてよい。いずれにしても
T1とT2を合わせた厚みがクツシヨン体の全体厚
となる。また図示の例で、表層パツド２の下表面
３は外周寄りで軽く傾斜し、中央寄りでほぼ水平
になつているが、これに限定さるものではなく、
例えば全体を通じて水平な直線または曲線などで
あつてもよい。底層パツド６の上表面７は、この
ような下表面３と相補的な形状に形成される。 The thickness T 2 of the bottom pad 6 may likewise be different, for example on the sides and on the inside. In any case
The combined thickness of T 1 and T 2 is the total thickness of the cushion body. In addition, in the illustrated example, the lower surface 3 of the surface layer pad 2 is slightly inclined near the outer periphery and is almost horizontal near the center, but this is not limited to this.
For example, it may be a straight line or a curved line that is horizontal throughout. The upper surface 7 of the bottom layer pad 6 is formed in a shape complementary to such a lower surface 3.
表層パツド２の上面には上面用の表皮１が一体
成形により結合されている。表皮１の寸法は、表
層パツド２と底層パツド６との接合線４（すなわ
ち第１図で下表面３の線の外端）に少しかぶる程
度の大きさとし、少しかぶつた部分は表層パツド
２にも底層パツド６にも接着していない自由度１
ａである。 An upper surface skin 1 is integrally molded onto the upper surface of the surface layer pad 2. The dimensions of the skin 1 are such that it slightly covers the joining line 4 between the surface layer pad 2 and the bottom layer pad 6 (i.e., the outer edge of the line of the lower surface 3 in FIG. 1 degree of freedom, not glued to bottom layer pad 6
It is a.
この自由縁１ａに、底層パツド６の外周の厚み
T2をおおうに足りる寸法の側面用表皮５の上端
５ａが、表層パツド２に底層パツド６を接合する
より前に、縫着される。表皮５はシート側面を包
被するものであるから、材質、色彩、模様などを
上面用表皮１とは変えたものにすることができ
る。側面用表皮５の下端５ｂは底層パツド６の下
面で適宜固定され得る。 The thickness of the outer periphery of the bottom layer pad 6 is added to this free edge 1a.
The upper end 5a of the side surface skin 5 having a size sufficient to cover T 2 is sewn before joining the bottom layer pad 6 to the surface layer pad 2. Since the skin 5 covers the side surface of the seat, the material, color, pattern, etc. can be different from that of the top skin 1. The lower end 5b of the side skin 5 can be fixed to the lower surface of the bottom layer pad 6 as appropriate.
上面用表皮１への側面用表皮５の縫着は、底層
パツド６がない状態でなされるから、接合線４の
下に何ら障害物がなく、例えば第５図の場合には
使用不能であつた平ベツド型のミシンを用いて容
易に縫製加工をすることができる。 Since the side surface skin 5 is sewn to the top surface skin 1 without the bottom layer pad 6, there are no obstacles under the joining line 4, and for example, in the case of FIG. It can be easily sewn using a flatbed sewing machine.
表層パツド２と底層パツド６とは別々の成形型
で発泡成形されるものであるから、発泡体の硬度
はそれぞれ独自に選択することができ、全体とし
て適度なクツシヨン性能を備えるように調整する
ことができる。 Since the surface layer pad 2 and the bottom layer pad 6 are foam-molded using separate molds, the hardness of each foam can be independently selected and adjusted to provide appropriate cushioning performance as a whole. I can do it.
次に、第２図から第４図を参照して本発明のシ
ートの製造方法をさらに詳しく説明する。 Next, the sheet manufacturing method of the present invention will be explained in more detail with reference to FIGS. 2 to 4.
本発明の方法においては、クツシヨン体を表層
パツドと底層パツドとに分けて発泡成形する。こ
のため、表皮もシートの上面をおおう上面用表皮
と、シートの四側面をおおう側面用表皮に分けて
用意される。上面用表皮と側面用表皮とは、同督
一素材でもよいが、異種素材を用いることが、デ
ザイン上好適であり、経済的でもある。 In the method of the present invention, the cushion body is divided into a surface pad and a bottom pad and foam-molded. For this reason, the skin is also prepared separately into a top skin that covers the top surface of the sheet and a side skin that covers the four sides of the sheet. Although the upper surface skin and the side surface skin may be made of the same material, it is preferable in terms of design and economical to use different materials.
こうして用意された上面用表皮１を第２図に示
す表層パツド用の成形型の下型１０上に配置し、
上型１２を閉じて表皮１の周縁１ａをクランプし
たのち、下型１０の吸引孔１１を通じて吸引し、
表皮１を下型表面形状（シート上面形状）に真空
成形する。吸引孔１１は図示していない適宜吸引
源に連通している。 The upper surface skin 1 prepared in this way is placed on the lower mold 10 of the mold for the surface layer pad shown in FIG.
After closing the upper mold 12 and clamping the peripheral edge 1a of the epidermis 1, suction is applied through the suction hole 11 of the lower mold 10,
The skin 1 is vacuum formed into the shape of the lower mold surface (the shape of the upper surface of the sheet). The suction hole 11 communicates with an appropriate suction source (not shown).
上面用表皮の取付けは、周縁にまだ側面用表皮
を接合していないので簡易単純になし得る。 Attaching the top surface skin can be done simply and easily since the side surface skin has not yet been joined to the periphery.
上型１２には、注入口１３が設けられていて、
ここから真空成形された表皮１上へ発泡性ウレタ
ン原液が適宜注入され、発泡させられる。発泡し
た表層パツド２は、その下面（第２図で）表皮１
と全体的に接着し一体となる（第２図で表層パツ
ド２と表皮１との間にわずかな〓間が見えるのは
図示の適宜のためで、実際は第３図または第１図
のように、表皮１と表層パツド２とは一体的に接
合している）。 The upper mold 12 is provided with an injection port 13,
From here, a foamable urethane stock solution is appropriately injected onto the vacuum-formed skin 1 and foamed. The foamed surface layer pad 2 has a lower surface (in FIG. 2) of the epidermis 1.
(The slight gap between the surface layer pad 2 and the skin 1 in Figure 2 is for illustration purposes only; in reality, it is as shown in Figure 3 or Figure 1. , the epidermis 1 and the surface pad 2 are integrally joined).
このような一体成形物を成形型から取り出し、
次に第３図に示すように、上面用表皮１の自由縁
である周縁１ａに側面用表皮５の上端５ａを縫着
する。縫着に代え、ウエルダーなどによつて接合
してもよい。いずれにしても、接合線４の下に
は、第５図の従来例におけるように大きな障壁Ｃ
がないから、接合作業は容易且つ能率的に実行で
きる。 Take out such an integrally molded product from the mold,
Next, as shown in FIG. 3, the upper end 5a of the side skin 5 is sewn to the peripheral edge 1a, which is the free edge of the top skin 1. Instead of sewing, they may be joined by welding or the like. In any case, there is a large barrier C below the joining line 4 as in the conventional example shown in FIG.
Since there are no screws, the joining operation can be carried out easily and efficiently.
ついで、こうして接合された側面用表皮５の中
へ、第４図に示すように別の成形型により発泡成
形した底層パツド６を入れ、その上表面７と表層
パツド２の下表面３とを接着する。接着に代え、
他の結合手段を用いることもできる。 Next, as shown in FIG. 4, a foam-molded bottom layer pad 6 is inserted into the side surface skin 5 that has been joined, and the upper surface 7 and the lower surface 3 of the surface layer pad 2 are bonded together. do. Instead of gluing,
Other coupling means can also be used.
最後に、側面用表皮５の下端５ｂを底層パツド
６の下面に適宜固定すれば、第１図に示したよう
なシートが完成する。 Finally, the lower end 5b of the side surface skin 5 is appropriately fixed to the lower surface of the bottom layer pad 6 to complete the sheet as shown in FIG.
本発明によれば、クツシヨン体は上下２層のパ
ツドに分割され、上面の表皮と側面の表皮との縫
着その他の操合作業は、上層クツシヨン体だけと
一体成形した後に、下層クツシヨン体がまだ存在
しない所で接合器具に対し何ら障害物なしに容易
に実行できるから、シートのデザイン形状の選択
の自由度並びに表皮素材の選択の自由度が大いに
拡大し、多様な要求に応じる一体成形シートを供
給することができると共に、はじめから上面部と
側面部とが接合されている表皮を用いて一体発泡
成形する場合のように、表皮側面部を何度も反転
させたりして傷めるおそれがなくまた、接合作業
が容易確実であるから、出来上りの品物の高品質
が保証される。
According to the present invention, the cushion body is divided into two layers of upper and lower pads, and the stitching and other manipulation operations of the upper and side skins are carried out after integrally molding only the upper layer cushion body, and then the lower layer cushion body is formed integrally with the upper layer cushion body. Since it can be easily performed without any obstacles to joining equipment where it does not yet exist, the degree of freedom in selecting the design shape of the seat and the choice of skin material is greatly expanded, making it an integrally molded sheet that can meet a variety of requirements. In addition, there is no risk of damaging the side surface of the skin by turning it over many times, which is the case when integral foam molding is performed using a skin in which the top and side surfaces are joined from the beginning. Furthermore, since the joining operation is easy and reliable, high quality of the finished product is guaranteed.
さらに、上下２層のパツドはそれぞれ別個に発
泡成形されるから、それぞれの硬さを自由に選択
することができ、例えば表層パツドを軟い硬度と
し、底層パツドを硬い硬度とすれば、表面が硬く
なりがちな一体成形シートの風合いを、座席のク
ツシヨン性や耐久性を損なうことなく改善するこ
とができる効果がある。 Furthermore, since the upper and lower pads are foam-molded separately, the hardness of each layer can be freely selected. For example, if the surface pad is soft and the bottom pad is hard, the surface This has the effect of improving the texture of integrally molded seats, which tend to become hard, without impairing the cushioning properties or durability of the seat.
第１図は本発明の方法により製造された一体成
形シートの一実施例を示す縦断端面図、第２図は
本発明に係る方法の一体成形シートの表層パツド
の一体発泡成形工程を示す縦断端面図、第３図は
表皮の上面部分と側面部分との縫着工程を説明す
る縦断端面図、第４図は表層パツドに底層パツド
を組合せる工程を説明する縦断端面図、第５図は
従来の一体成形シートの製法を説明する縦断端面
図である。
〔主要符号〕、１……上面用表皮、１ａ……周
縁（自由縁）、２……表層パツド、３……下表面、
４……接合線、５……側面用表皮、６……底層パ
ツド、７……上表面、１０……表層パツド成形用
の下型、１２……上型。
FIG. 1 is a longitudinal cross-sectional end view showing an example of an integrally molded sheet manufactured by the method of the present invention, and FIG. 2 is a longitudinal cross-sectional end view showing the integral foam molding process of the surface layer pad of the integrally molded sheet by the method according to the present invention. Figure 3 is a vertical cross-sectional end view illustrating the process of sewing the top and side parts of the skin, Figure 4 is a vertical cross-sectional view illustrating the process of assembling the bottom layer pad to the surface layer pad, and Figure 5 is the conventional FIG. 2 is a vertical cross-sectional end view illustrating a method of manufacturing an integrally molded sheet. [Main symbols], 1... Upper surface skin, 1a... Peripheral edge (free edge), 2... Surface layer pad, 3... Lower surface,
4...Joining line, 5...Skin for side surface, 6...Bottom layer pad, 7...Top surface, 10...Lower mold for forming surface layer pad, 12...Upper mold.
Claims (1)
のシートを製造する方法であつて、 (1) 表皮をシート上面をおおう上面用表皮と、シ
ート側面をおおう側面用表皮とに分けて用意す
ると共に、 (2) 成形用金型を浅い表層パツド用と、これより
深い底層パツド用とに分けて用意し、 (3) まず、上面用表皮だけを前記浅い成形型に入
れ、真空成形により成形型の表面形状に沿わ
せ、 (4) 成形された上面用表皮の上へ発泡性原液を注
入して発泡させ、のちに前記上面用表皮と側面
用表皮との接合線となる位置にほぼ相当する厚
みの表層パツドを上面用表皮と一体成形して、
この一体成形物の周縁にはわずかな上面用表皮
の自由縁を残し、 (5) 成形型から取り出した一体成形の前記自由縁
に別に用意した側面用表皮をシート側面に全く
邪魔されることなく接合し、 (6) 前記深い成形型により表層パツドと異なる硬
度に発泡成形した底層パツドの上表面を前記側
面用表皮の中へ挿入して前記表層パツドの下表
面に結合し、該底層パツドの四周を前記側面用
表皮で包被すること を特徴とする、一体成形異硬度シートの製造方
法。 ２ 前記表層パツドは前記底層パツドより軟質の
発泡体とする特許請求の範囲第１項に記載の方
法。 ３ 前記表層パツドの下表面と底層パツドの上表
面とを、少くとも一部において互いに相補的な傾
斜面をなすように形成する特許請求の範囲第２項
に記載の方法。[Scope of Claims] 1. A method for producing a multi-layer sheet with different hardness by integrally molding a sheet with its skin, comprising: (1) a skin for an upper surface that covers the top surface of the sheet, and a skin for a side surface that covers the side surfaces of the sheet; (2) Separate molding molds are prepared for the shallow surface layer pad and for the deeper bottom layer pad, (3) First, only the top skin layer is molded into the shallow mold. (4) Inject a foaming stock solution onto the molded top surface skin to foam it, and later join the top surface skin and side surface skin. A surface layer pad with a thickness that corresponds to the position of the line is integrally molded with the top surface skin,
A slight free edge of the upper surface skin is left on the periphery of this integrally molded product, and (5) a separately prepared side surface skin is placed on the free edge of the integrally molded product taken out from the mold without being obstructed by the side surface of the seat. (6) The upper surface of the bottom layer pad, which has been foam-molded using the deep mold to a hardness different from that of the surface layer pad, is inserted into the side surface skin and bonded to the lower surface of the surface layer pad, and the bottom layer pad is A method for manufacturing an integrally molded sheet of different hardness, characterized in that the four peripheries of the sheet are covered with the side surface skin. 2. The method according to claim 1, wherein the surface layer pad is a softer foam than the bottom layer pad. 3. The method according to claim 2, wherein the lower surface of the top layer pad and the upper surface of the bottom layer pad are formed so as to form mutually complementary inclined surfaces at least in part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61229529A JPS6384906A (en) | 1986-09-30 | 1986-09-30 | Monolithically molded sheet and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61229529A JPS6384906A (en) | 1986-09-30 | 1986-09-30 | Monolithically molded sheet and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6384906A JPS6384906A (en) | 1988-04-15 |
| JPH0339807B2 true JPH0339807B2 (en) | 1991-06-17 |
Family
ID=16893596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61229529A Granted JPS6384906A (en) | 1986-09-30 | 1986-09-30 | Monolithically molded sheet and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384906A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2883032B2 (en) * | 1995-12-05 | 1999-04-19 | 難波プレス工業株式会社 | Multi-layer seat of different hardness with skin and method of manufacturing the same |
| JP2840223B2 (en) * | 1996-07-01 | 1998-12-24 | 難波プレス工業株式会社 | Multi-layer seat of different hardness with skin and method of manufacturing the same |
| JP2975894B2 (en) * | 1996-07-12 | 1999-11-10 | 難波プレス工業株式会社 | Multi-layer seat of different hardness with skin and method of manufacturing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58218989A (en) * | 1982-06-12 | 1983-12-20 | 難波プレス工業株式会社 | Production of integrally molded seat |
| JPS60234809A (en) * | 1984-05-09 | 1985-11-21 | Nanba Press Kogyo Kk | Integral seat laid in one body with frame and manufacture thereof |
-
1986
- 1986-09-30 JP JP61229529A patent/JPS6384906A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58218989A (en) * | 1982-06-12 | 1983-12-20 | 難波プレス工業株式会社 | Production of integrally molded seat |
| JPS60234809A (en) * | 1984-05-09 | 1985-11-21 | Nanba Press Kogyo Kk | Integral seat laid in one body with frame and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6384906A (en) | 1988-04-15 |
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