JPS5931124A - Manufacture of bag shaped cushion body - Google Patents
Manufacture of bag shaped cushion bodyInfo
- Publication number
- JPS5931124A JPS5931124A JP57141923A JP14192382A JPS5931124A JP S5931124 A JPS5931124 A JP S5931124A JP 57141923 A JP57141923 A JP 57141923A JP 14192382 A JP14192382 A JP 14192382A JP S5931124 A JPS5931124 A JP S5931124A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- bag
- shaped
- cushion body
- eaves
- 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
Links
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
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1285—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being foamed
-
- 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
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/751—Mattresses, cushions
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は袋状開口部を有する袋状クッション体の製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a bag-shaped cushion body having a bag-shaped opening.
例えば、自動車シートの背部クッション体には背面の一
部に袋状開口部を有する袋状クッシ冒ン体が用いられて
いる。For example, a bag-shaped cushion body having a bag-shaped opening in a part of the back side is used as a back cushion body of an automobile seat.
とζろで、従来、上述した袋状クツ７．７体は次のよう
な方法によシ製造されている。即ち、第１図に示す如き
下型１、中型２及び上型３の３つ型からなるモールド型
を用い、下型ｌの底Ｐ形量内に中型２をセットし、上型
３で型閉めした後、屋内に発泡体原液を充填して発泡成
形を行なう。この際、下型１と中型２０間に充填された
発泡体原液が発泡すると共に、下型１内壁面と中型２０
間に形成された所望幅の間隙から中型２と上型３に形成
された所定形状の空間内に廻シ込んで、同第１図及び第
２図に示す如き庇状頭部４、庇状側壁５ｍ、５ｂ、背部
６からなシ、袋状開孔部、′ヲ有する袋状クッシ、ン体
ヱが得られる。Conventionally, the above-mentioned bag-like shoes 7.7 have been manufactured by the following method. That is, using a mold consisting of three molds, a lower mold 1, a middle mold 2, and an upper mold 3, as shown in FIG. After closing, the room is filled with foam stock solution and foam molding is performed. At this time, the foam stock solution filled between the lower mold 1 and the middle mold 20 foams, and the inner wall surface of the lower mold 1 and the middle mold 20
The eaves-shaped head 4 and the eaves-shaped head 4 as shown in FIGS. From the side walls 5m, 5b and the back part 6, a bag-shaped cushion body having a bag-shaped opening and a bag-shaped opening is obtained.
しかしながら、上記モールド成形においては中型２と下
型１の間の発泡体が中型２と上型３の空間、特に庇状側
壁５ ａ ＋ ５ ｂを形成すべき空間に充分に廻シ込
まないため、同第２図に示す如く庇状側壁５＆ 、５ｂ
に欠陥部８・・・が形成される恐れがあった。このよう
な欠陥部８・・・の発生は外観を損なうばかりか、袋状
クッション体の強度低下も招く。However, in the above molding, the foam between the middle mold 2 and the lower mold 1 does not fully penetrate into the space between the middle mold 2 and the upper mold 3, especially the space where the eave-like side walls 5 a + 5 b are to be formed. , as shown in FIG. 2, the eave-shaped side walls 5&, 5b
There was a risk that defective portions 8... would be formed. The occurrence of such defective portions 8 not only impairs the appearance but also causes a decrease in the strength of the bag-shaped cushion body.
本発明は上記事情に鑑みなされたもので、外観性を阻害
し７１、強度低下を招く庇状側壁の欠陥部の発生を解消
した高品質の袋状クッ７゜ン体の製造方法を提供しよう
とするものである。The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a method for manufacturing a high-quality bag-shaped 7-dimensional bag body that eliminates the occurrence of defects in the eave-shaped side walls that impair the appearance and cause a decrease in strength. That is.
すなわち、本発明は下型の成形室内の中型に予め袋状ク
ッション体の庇状側壁となる２枚の発泡体シートをセッ
トし、上型によシ型閉めした後、型内に発泡体原液を充
填して発泡成形を行なうことを特徴とするものである。That is, in the present invention, two foam sheets that will become the eave-like side walls of the bag-shaped cushion body are set in advance in the middle mold of the lower molding chamber, and after the upper mold is closed, the foam stock solution is poured into the mold. It is characterized by filling the foam with foam molding.
次に、本発明の詳細な説明する。Next, the present invention will be explained in detail.
実施例
第３図は本実施例の袋状クッションを得るためのモール
ド成形装置であり、下型１１、中型１２及び上型１３の
３つの型からなるモールド型を備えている。上型１３は
略コ字型の枠体で形成されておシ、枠体の開口端部は蝶
番１４ａ。Embodiment FIG. 3 shows a molding apparatus for obtaining the bag-shaped cushion of this embodiment, and is equipped with a mold consisting of three molds: a lower mold 11, a middle mold 12, and an upper mold 13. The upper mold 13 is formed of a substantially U-shaped frame, and the open end of the frame is a hinge 14a.
１４ｂｋ介して下型１１に開閉自在に取付けられている
。前記上型１３には該上型１３の両側部を挾むようにし
てコ字型の固定部材１５が配置されている。この固定部
材１５は前記上型１３の側部に取付けられた取付金具１
６ａ。It is attached to the lower mold 11 via 14bk so as to be openable and closable. U-shaped fixing members 15 are arranged on the upper mold 13 so as to sandwich both sides of the upper mold 13. This fixing member 15 is a mounting bracket 1 attached to the side of the upper mold 13.
6a.
１６ｂに遊嵌されておシ、前記上型１３の開閉゛操作が
円滑に行なわれるようになっている。また、前記固定部
材１５の先端部には鉤形の固定爪１７ ａ ＊ １７
ｂが形成されている。この固定爪１７ａ、１７ｂは前記
下型Ｉノの両側部に夫夫固定された係止片１８ｈ、１８
ｂの溝１９・・・に係合して前記上型１３の開放時の位
置を固定するようになっている。なお、前記係止片１８
ｈ１８ｂは山形状をなし、山形周面に沿う溝１９・・・
と固定爪１７ａ 、 １７ｂの位置を変えることによυ
上型１３の固定位置を調整できるよ゛うになっている。16b, so that the opening and closing operations of the upper mold 13 can be performed smoothly. Furthermore, a hook-shaped fixing claw 17a*17 is provided at the tip of the fixing member 15.
b is formed. These fixing claws 17a and 17b are locking pieces 18h and 18 fixed to both sides of the lower mold I.
b is engaged with the grooves 19... to fix the position of the upper mold 13 when it is opened. Note that the locking piece 18
h18b has a mountain shape, and grooves 19 along the mountain-shaped circumferential surface...
By changing the position of fixed claws 17a and 17b,
The fixing position of the upper die 13 can be adjusted.
また、前記上型１３が取付けられた下型１ノの一側辺部
には、前記中型１２が蝶番（図示せず）を介して開閉自
在に取付けられている。この中型１２は前記上型１３の
開口部に取付けられた保持板２０と該中型１２の背面と
を連結する鎖等からなる連結部材２１によって前記上型
１３の開放時に該上型１３に吊着された状態で固定され
るようになっている。また、前記中型１２の上面にはコ
字形の第１．第２の突状部Ｊ ２ ｔ ２ Ｊが階段状
に形成されている。第１の突状部２２は型閉め時におい
て前記上型１３の開口部が嵌合され、その突状部２２の
平坦な階段面に上型１３が当接し、該開口部を塞ぐ役目
をする。前記第２の突状部２３はセットされる発泡体シ
ートの厚さ程度の高さを有し、該突状部２３の平坦な階
段面には発泡体シートがセットされる。前記中型１２の
先端側には肉薄な舌片２４が形成されている。この舌片
２４その先端には前記下型１１に形成された切欠部２５
に嵌入して該中型１２を支持するための突起２６が形成
されている。Further, the middle mold 12 is attached to one side of the lower mold 1 to which the upper mold 13 is attached via a hinge (not shown) so as to be openable and closable. This middle mold 12 is suspended from the upper mold 13 when the upper mold 13 is opened by a connecting member 21 made of a chain or the like that connects a holding plate 20 attached to the opening of the upper mold 13 and the back surface of the middle mold 12. It is designed to be fixed in a fixed state. Further, on the upper surface of the medium mold 12, a U-shaped first. The second protruding portion J 2 t 2 J is formed in a stepped shape. The opening of the upper mold 13 is fitted into the first protrusion 22 when the mold is closed, and the upper mold 13 comes into contact with the flat stepped surface of the protrusion 22, serving to close the opening. . The second projecting portion 23 has a height approximately equal to the thickness of the foam sheet to be set, and the foam sheet is set on the flat step surface of the projecting portion 23. A thin tongue piece 24 is formed on the tip side of the medium mold 12. This tongue piece 24 has a notch 25 formed in the lower die 11 at its tip.
A protrusion 26 is formed to fit into and support the medium mold 12.
次に、上記モールド成形装置を用いて袋状クッション体
を製造する方法を説明する。Next, a method of manufacturing a bag-shaped cushion body using the above molding apparatus will be explained.
まず、固定部材１５の固定爪１７ａ 、 １７ｂを係止
片１８ａ、１８ｂの前方の溝１９．１９に移動させて上
型１３を下型１１側に傾斜させると共に中型１２ｔ−下
型１１内に入れ、その先端の突起２６を下型１１の切欠
部２５に嵌合させて中型１２をセットした。・この時、
中型１２の３側辺と下型１ノ内壁面との間に所望幅の間
隙が′形°成される。つづいて、中型１２の第２の突状
部２３の階段面に第４図に示す如く袋状クッション体の
庇状側壁となる２枚のポリウレタン発泡体シート２７ｈ
、２７ｂをそれらの長手方向に沿う一側辺が下型１ノの
内壁面に当接するようにセットした。ひきつづき、固定
部材１５の固定爪１７ａ 、 １７ｂを係止片１８ａ。First, the fixing claws 17a and 17b of the fixing member 15 are moved to the grooves 19 and 19 in front of the locking pieces 18a and 18b, and the upper mold 13 is tilted toward the lower mold 11, and the middle mold 12t is inserted into the lower mold 11. The middle mold 12 was set by fitting the protrusion 26 at the tip into the notch 25 of the lower mold 11. ·At this time,
A gap of a desired width is formed between the three sides of the middle mold 12 and the inner wall surface of the lower mold 1. Next, as shown in FIG. 4, two polyurethane foam sheets 27h are placed on the step surface of the second projecting portion 23 of the medium size 12, which will become the eave-like side walls of the bag-like cushion body.
, 27b were set so that one side along their longitudinal direction was in contact with the inner wall surface of the lower mold 1. Subsequently, the fixing claws 17a and 17b of the fixing member 15 are connected to the locking pieces 18a.
１８ｂの最前部の溝１９．１９に夫々移動させ、上型１
３によシ型締めした。この時、上型１３の開口部は中型
１２の第１の突状部２２に嵌合して該開口部が塞がれる
と共に、上型１３の前面とポリウレタン発泡体シーＦ
２７ ｍ ＋ ２７ ｂとが当接し、かつ上型１３の前
面と中型１２の舌片２３とに空間が形成される。次いで
、型内にポリウレタン発泡体原液を充填して発泡成形を
行なった。この時、中型１２と下型１１間の発泡体原料
が発泡されると共に中型１２外周側辺と下型１１の内壁
面との間隙から中型１２の舌片２３と上型１３前面との
空間に廻シ込んで予めセットされたポリウレタン発泡体
シート２７ａ、２７ｂと一体化されて所定の発泡成形が
なされる。次いで、上型１３を固定部材１５の固定爪１
７８．１７ｂの後方への移動によシ開放すると共に、中
型１２を持ち上げた後、該中型１２から袋状クッション
体を取出した。18b to the frontmost grooves 19 and 19 respectively, and
The mold was tightened in step 3. At this time, the opening of the upper mold 13 is fitted into the first protrusion 22 of the middle mold 12 to close the opening, and the front surface of the upper mold 13 and the polyurethane foam sheet F
27 m + 27 b come into contact with each other, and a space is formed between the front surface of the upper mold 13 and the tongue piece 23 of the middle mold 12. Next, a polyurethane foam stock solution was filled into the mold and foam molding was performed. At this time, the foam material between the middle mold 12 and the lower mold 11 is foamed and flows from the gap between the outer peripheral side of the middle mold 12 and the inner wall surface of the lower mold 11 to the space between the tongue piece 23 of the middle mold 12 and the front surface of the upper mold 13. It is rotated and integrated with the polyurethane foam sheets 27a and 27b set in advance to form a predetermined foam molding. Next, the upper die 13 is attached to the fixing claw 1 of the fixing member 15.
78.17b was moved rearward to open it, and after lifting the middle mold 12, the bag-shaped cushion body was taken out from the middle mold 12.
しかして、上記方法によれば発泡体の廻シ込み性の悪い
中型１２の庇状側壁形成予定部に予めポリウレタン発泡
体シート２７ａ、２７ｂｆセツトし、型締め後型内にポ
リウレタン発泡体原液を充填し、発泡成形することによ
って、第５図及び第６図に示す如くポリウレタン発泡体
原液の発泡により形成された断面コ字型の背面部２８及
び庇状頭部２９と、これらに含浸層ｊθを介して一体化
されたポリウレタン発泡体シート（庇状側壁）２７ａ、
２７ｂとからなる袋状クッション体３１ｆ得ることがで
きる。その結果、従来の如く庇状側壁への欠陥部の発生
を解消できるため、外観性に優れ、かつ強度の点でも十
分満足する良質の袋状クッション体を高歩留シで得るこ
とができる。According to the method described above, the polyurethane foam sheets 27a and 27bf are set in advance on the eaves-shaped side wall forming portion of the medium mold 12, where the foam has poor penetration properties, and after the mold is clamped, the polyurethane foam stock solution is filled into the mold. Then, by foam molding, as shown in FIGS. 5 and 6, an impregnated layer jθ is formed on the back portion 28 and the eave-shaped head portion 29, which have a U-shaped cross section and are formed by foaming the polyurethane foam stock solution. A polyurethane foam sheet (eave-shaped side wall) 27a integrated through the
27b can be obtained. As a result, it is possible to eliminate the occurrence of defects in the eave-shaped side walls as in the prior art, and thus it is possible to obtain a high-quality bag-shaped cushion body with excellent appearance and sufficient strength in terms of strength at a high yield.
なお、上記実施例では第３図図示のモールド成形装置に
より袋状クッション体を製造したが、他の３つ型のモー
ルド成形装置を用いて製造してもよい。In the above embodiment, the bag-shaped cushion body was manufactured using the molding apparatus shown in FIG. 3, but it may be manufactured using any of the other three types of molding apparatuses.
また、上記実施例では発泡体シートとしてポリウレタン
製のものを、発泡体原液としてポリウレタン発泡体原液
を用いたが、とれに限定されず、他の合成樹脂の発泡体
シートや発泡体原液を用いてもよい。In addition, in the above example, a foam sheet made of polyurethane and a polyurethane foam stock solution were used as the foam stock solution, but the invention is not limited to this. Good too.
以上詳述した如く、本発明によれば庇状側壁への欠陥部
の発生を解消して外観性や強度が良好な袋状クッション
体を高歩留りで製造できる等顕著な効果を有する。As described in detail above, the present invention has remarkable effects such as eliminating the occurrence of defects in the eave-shaped side walls and making it possible to manufacture bag-shaped cushion bodies with good appearance and strength at a high yield.
第１図は従来の袋状クッション体の製造に用いられるモ
ールド成形装置の１す１面図、第２図は従来法によシ得
られた袋状クッション体の斜視図、第３図は本発明の実
施例で用いたモールド成形装置の一形態を示す斜視図、
第４図はモールド成形装置の中型にポリウレタン発泡体
シートを７１＝、、）した時の断面図、第５図は本発明
の実施例により得られた袋状クッション体を示す斜視図
、第６図は第５図のＶｌ−Ｖｌ線に沿う断面図である。
１１・・・下型、１２・・・中型、１３・・・上型、１
５・・・固定部材、１７ａ 、 １７ｂ・・・固定爪、
１８ａ。
１、８ ｂ・・・係止片、：１２，２３・・・突状部、
２４・・・舌片、２７ｍ、２７ｂ・・・ポ１）ウレタン
発泡体シート（庇状側壁）、２８・・・背面部、２９・
・・庇状頭部、３０・・・含浸層、３１ ・・・袋状ク
ッションイ本。Fig. 1 is a side view of a molding device used in the production of conventional bag-shaped cushion bodies, Fig. 2 is a perspective view of a bag-shaped cushion body obtained by the conventional method, and Fig. 3 is a bookmark of the present invention. A perspective view showing one form of a molding device used in an embodiment of the invention,
Fig. 4 is a sectional view when a polyurethane foam sheet is placed in the middle mold of the molding device, Fig. 5 is a perspective view showing a bag-shaped cushion body obtained according to an embodiment of the present invention, Fig. 6 The figure is a sectional view taken along the line Vl--Vl in FIG. 5. 11...lower mold, 12...middle mold, 13...upper mold, 1
5...Fixing member, 17a, 17b...Fixing claw,
18a. 1, 8 b...Locking piece, :12,23...Protrusion part,
24... tongue piece, 27m, 27b... point 1) urethane foam sheet (eave-shaped side wall), 28... back part, 29...
...Eave-shaped head, 30...Impregnated layer, 31...Bag-shaped cushion book.
Claims (1)
側壁となる２枚の発泡体シートをセットし、上型によシ
型閉めした後、型内に発泡体原液を充填して発泡成形を
行なうことを特徴とする袋状クッション体の製造方法。Two foam sheets that will become the eaves-like side walls of the bag-shaped cushion body are set in advance in the middle mold of the lower mold chamber, and after the upper mold is closed, the foam stock solution is filled into the mold. A method for manufacturing a bag-shaped cushion body, which comprises performing foam molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57141923A JPS5931124A (en) | 1982-08-16 | 1982-08-16 | Manufacture of bag shaped cushion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57141923A JPS5931124A (en) | 1982-08-16 | 1982-08-16 | Manufacture of bag shaped cushion body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5931124A true JPS5931124A (en) | 1984-02-20 |
Family
ID=15303296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57141923A Pending JPS5931124A (en) | 1982-08-16 | 1982-08-16 | Manufacture of bag shaped cushion body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931124A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62144909A (en) * | 1985-12-19 | 1987-06-29 | Inoue Mtp Co Ltd | Manufacturing method of cushioning body with bag-shaped section |
| US5425836A (en) * | 1994-03-11 | 1995-06-20 | Tachi-S, Co., Ltd. | Die for bonding a padding to a covering member in a vehicle seat |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123471A (en) * | 1977-04-02 | 1978-10-27 | Toyota Auto Body Co Ltd | Production of seat cushion with composite structure |
-
1982
- 1982-08-16 JP JP57141923A patent/JPS5931124A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123471A (en) * | 1977-04-02 | 1978-10-27 | Toyota Auto Body Co Ltd | Production of seat cushion with composite structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62144909A (en) * | 1985-12-19 | 1987-06-29 | Inoue Mtp Co Ltd | Manufacturing method of cushioning body with bag-shaped section |
| JPH0548727B2 (en) * | 1985-12-19 | 1993-07-22 | Inoue Mtp Kk | |
| US5425836A (en) * | 1994-03-11 | 1995-06-20 | Tachi-S, Co., Ltd. | Die for bonding a padding to a covering member in a vehicle seat |
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