JPH038247B2 - - Google Patents
Info
- Publication number
- JPH038247B2 JPH038247B2 JP58053280A JP5328083A JPH038247B2 JP H038247 B2 JPH038247 B2 JP H038247B2 JP 58053280 A JP58053280 A JP 58053280A JP 5328083 A JP5328083 A JP 5328083A JP H038247 B2 JPH038247 B2 JP H038247B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- surface material
- cushion body
- wall surface
- foam
- 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
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
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
- B29C44/143—Means for positioning the lining in the mould
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は発泡体からなるクツシヨン体の製造方
法に関し、特に表面材を一体に被覆したクツシヨ
ン体を製造する方法の改良に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a cushion body made of a foam, and more particularly to an improvement in the method for manufacturing a cushion body integrally coated with a surface material.
この種のクツシヨン体の製造に際しては、アセ
ンブリー工程を簡略化するために従来次のような
製造方法が用いられていた。 When manufacturing this type of cushion body, the following manufacturing method has conventionally been used in order to simplify the assembly process.
() 第１図Ａにおいて、１は下型、２は中型、
３は上型で、これらはクツシヨン体のモールド
型を構成している。下型１はクツシヨン体の頂
部形状に対した内壁面を有している。まず、こ
の下型１の内壁面上に表面材４を密着させて配
置し、かつ該表面材４を下型１の開放端からモ
ールド型の外方に延在させる。この表面材４と
しては布、レザー、発泡体シートあるいはこれ
らを組合わせたものが用いられる。次いで、中
型２を図示のように配置して表面材４を固定し
た後、ポリウレタン発泡体原液５を型内に散布
し、上型３を閉型する。() In Figure 1A, 1 is the lower type, 2 is the middle type,
3 is an upper mold, which constitutes a mold for the cushion body. The lower mold 1 has an inner wall surface corresponding to the shape of the top of the cushion body. First, the surface material 4 is placed in close contact with the inner wall surface of the lower mold 1, and the surface material 4 is extended from the open end of the lower mold 1 to the outside of the mold. As the surface material 4, cloth, leather, a foam sheet, or a combination thereof is used. Next, after arranging the middle mold 2 as shown and fixing the surface material 4, a polyurethane foam stock solution 5 is spread inside the mold, and the upper mold 3 is closed.
() 次に、ポリウレタン発泡体原液５を発泡さ
せて表面材４と共に一体にモールド成形を行な
つた後、これを脱型すると、第１図Ｂに示すよ
うに頂部表面に表面材４が一体に被着されたク
ツシヨン体が得られる。図中５′はポリウレタ
ン発泡体層を示している。次いで、表面材４の
延在部をポリウレタン発泡体層５′の側面およ
び底面に巻き込んで接着し、所期のクツシヨン
体を製造することができる。() Next, the polyurethane foam stock solution 5 is foamed and molded together with the surface material 4, and when this is removed from the mold, the surface material 4 is integrally formed on the top surface as shown in FIG. 1B. A cushion body is obtained which is coated with a cloth. In the figure, 5' indicates a polyurethane foam layer. Next, the extending portion of the facing material 4 is wrapped around the side and bottom surfaces of the polyurethane foam layer 5' and adhered thereto, thereby producing the desired cushion body.
ところが、上記従来の製造方法では、第１図Ａ
の状態でポリウレタン発泡体原液５を発泡させた
とき、その発泡圧によつて表面材４の一部（特に
端部）に皺が発生し易いという問題があつた。こ
のような皺が形成された状態で表面材４とポリウ
レタン発泡体層５′とが一体化されてしまうと、
脱型後に皺をなくすことは不可能で、このため製
造歩留の低下をもたらすことになる。 However, in the conventional manufacturing method described above,
When the polyurethane foam stock solution 5 was foamed in this state, there was a problem in that wrinkles were likely to occur in a portion (particularly the edges) of the surface material 4 due to the foaming pressure. If the surface material 4 and the polyurethane foam layer 5' are integrated with such wrinkles formed,
It is impossible to eliminate wrinkles after demolding, resulting in a reduction in manufacturing yield.
本発明は上記事情に鑑みてなされたもので、表
面材に皺が形成されるのを防止できるクツシヨン
体の製造方法を提供するものである。 The present invention has been made in view of the above circumstances, and provides a method for manufacturing a cushion body that can prevent the formation of wrinkles on the surface material.
即ち、本発明は、クツシヨン体の頂面に対応す
るモールド型内壁面上に表面材を密着して配置す
ると共に、該表面材をモールド型の外部に延在さ
せ、このモールド型内に発泡体原料を充填して発
泡させることにより前記表面材と一体にモールド
成形した後、モールド型の外部に延在されていた
前記表面材を発泡成形体の側面および裏面に巻き
込んで接着するクツシヨン体の製造方法におい
て、前記表面材に充分な張力を加えた状態でこれ
をモールド型の前記内壁面上に密着させて配置す
ることを特徴とするクツシヨン体の製造方法であ
る。 That is, in the present invention, a surface material is disposed in close contact with the inner wall surface of the mold corresponding to the top surface of the cushion body, the surface material is extended to the outside of the mold, and the foam is placed inside the mold. Production of a cushion body by filling and foaming raw materials and molding them integrally with the surface material, and then rolling and adhering the surface material, which had been extending outside the mold, onto the side and back surfaces of the foam molded product. The method of manufacturing a cushion body is characterized in that the surface material is placed in close contact with the inner wall surface of the mold while applying sufficient tension to the surface material.
以下、第２図を参照して本発明の一実施例を説
明する。 An embodiment of the present invention will be described below with reference to FIG.
この実施例では、下型１１、中型１２および上
型１３からなるモールド型を使用する。下型１１
はクツシヨン体の頂面に対応する内壁面を有し、
該壁面は図示のようにやや凸状に形成されてい
る。しかも該下型１１と中型１２との合せ面は、
下面１１の前記凸状内壁面の延長面と一致するよ
うに形成されている。 In this embodiment, a mold consisting of a lower mold 11, a middle mold 12, and an upper mold 13 is used. Lower mold 11
has an inner wall surface corresponding to the top surface of the cushion body,
The wall surface is formed in a slightly convex shape as shown in the figure. Moreover, the mating surface between the lower mold 11 and the middle mold 12 is
It is formed to match the extension surface of the convex inner wall surface of the lower surface 11.
上記モールド型を用いて本発明を実施する際に
は、まず表面材１４を下型１１の内壁面上に載置
し、該表面材１４の外方延在部を図中矢印方向に
引張ることにより充分な張力を加えた状態でこれ
を下型１１の内壁面上に密着させる。そして、そ
のままの状態で中型１２をセツトすることによ
り、下型１１の内壁面上に密着されている表面材
１４を充分な張力が付加された状態で固定する。
続いて、ポリウレタン発泡原液１５をモールド型
内に注入充填した後、上型１３を閉型する。その
後は従来の製造方法と同様、ポリウレタン発泡体
原液１５を発泡させて表面材１４と一体にモール
ド成形した後、表面材１４の延在部を巻き込んで
接着することにより、表面材１４で一体に被覆さ
れたクツシヨン体が得られる。 When carrying out the present invention using the above mold, first, the surface material 14 is placed on the inner wall surface of the lower mold 11, and the outwardly extending portion of the surface material 14 is pulled in the direction of the arrow in the figure. This is brought into close contact with the inner wall surface of the lower mold 11 while applying sufficient tension. Then, by setting the middle mold 12 in that state, the surface material 14 that is in close contact with the inner wall surface of the lower mold 11 is fixed with sufficient tension applied thereto.
Subsequently, after the polyurethane foaming stock solution 15 is injected and filled into the mold, the upper mold 13 is closed. After that, as in the conventional manufacturing method, the polyurethane foam stock solution 15 is foamed and molded integrally with the surface material 14, and then the extended portion of the surface material 14 is rolled up and bonded, so that the surface material 14 is integrally formed. A coated cushion body is obtained.
上記実施例の製造方法によれば、表面材１４が
充分な張力により展張された状態で下型１１の内
壁面上に密着されているため、発泡圧が負荷され
ても皺を生じない。従つて、不良品を生じること
なく所期のクツシヨン体を得ることができる。 According to the manufacturing method of the above embodiment, since the surface material 14 is stretched with sufficient tension and tightly adhered to the inner wall surface of the lower mold 11, wrinkles do not occur even when foaming pressure is applied. Therefore, the desired cushion body can be obtained without producing defective products.
なお、本発明においてはポリウレタン発泡体原
液の代りに他の発泡体原料を使用してもよい。 In the present invention, other foam raw materials may be used instead of the polyurethane foam stock solution.
以上説明したように、本発明によれば、表面材
で一体に被覆された発泡体製のクツシヨン体を製
造する際、アセンブリー工程を簡略化すると同時
に表面材に皺が形成されるのを防止することがで
き、もつて製造歩留りを向上できる等、顕著な効
果が得られるものである。 As explained above, according to the present invention, when manufacturing a foam cushion body integrally covered with a surface material, it is possible to simplify the assembly process and at the same time prevent the formation of wrinkles in the surface material. As a result, significant effects such as improved manufacturing yield can be obtained.
第１図Ａ，Ｂは従来のクツシヨン体の製造方法
を説明するための断面図、第２図は本発明の一実
施例になるクツシヨン体の製造方法を説明するた
めの断面図である。
１１……下型、１２……中型、１３……上型、
１４……表面材、１５……ポリウレタン発泡原
液。
1A and 1B are cross-sectional views for explaining a conventional method of manufacturing a cushion body, and FIG. 2 is a cross-sectional view for explaining a method of manufacturing a cushion body according to an embodiment of the present invention. 11...Lower mold, 12...Medium mold, 13...Upper mold,
14... Surface material, 15... Polyurethane foaming stock solution.
Claims (1)
壁面上に表面材を密着して配置すると共に、該表
面材をモールド型の外部に延在させ、このモール
ド型内に発泡体原料を充填して発泡させることに
より前記表面材と一体にモールド成形した後、モ
ールド型の外部に延在されていた前記表面材を発
泡成形体の側面および裏面に巻き込んで接着する
クツシヨン体の製造方法において、 前記モールド型として、やや凸状の内壁面を有
する下型と、該下型との合せ面が前記凸状内壁面
の延長面と一致するように形成された中型と、該
中型の上に載置される上型とからなる三分割のモ
ールド型を用いることと、 前記表面材に充分な張力を加えた状態でこれを
前記下型の凸状内壁面に密着させた後、そのまま
の状態で中型をセツトすることにより、前記表面
材を、充分な張力が付加され且つ型の外部に延在
した状態で固定することとを特徴とするクツシヨ
ン体の製造方法。[Claims] 1. A surface material is disposed in close contact with the inner wall surface of the mold corresponding to the top surface of the cushion body, and the surface material is extended to the outside of the mold, and foam is formed in the mold. The cushion body is molded integrally with the surface material by filling and foaming the foam material, and then the surface material extending outside the mold is rolled into the side and back surfaces of the foam molded product and bonded. In the manufacturing method, the mold includes a lower mold having a slightly convex inner wall surface, a middle mold formed so that a mating surface with the lower mold coincides with an extension surface of the convex inner wall surface, and the middle mold. Using a three-part mold consisting of an upper mold placed on top of the mold, and applying sufficient tension to the surface material and bringing it into close contact with the convex inner wall surface of the lower mold, A method for producing a cushion body, characterized in that by setting the middle mold in that state, the surface material is fixed in a state where sufficient tension is applied and it extends outside the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5328083A JPS59178227A (en) | 1983-03-29 | 1983-03-29 | Preparation of cushion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5328083A JPS59178227A (en) | 1983-03-29 | 1983-03-29 | Preparation of cushion body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59178227A JPS59178227A (en) | 1984-10-09 |
| JPH038247B2 true JPH038247B2 (en) | 1991-02-05 |
Family
ID=12938322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5328083A Granted JPS59178227A (en) | 1983-03-29 | 1983-03-29 | Preparation of cushion body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59178227A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4836137U (en) * | 1971-09-04 | 1973-04-28 | ||
| JPS6026004B2 (en) * | 1979-03-13 | 1985-06-21 | 池田物産株式会社 | Manufacturing method of integral foam sheet |
-
1983
- 1983-03-29 JP JP5328083A patent/JPS59178227A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59178227A (en) | 1984-10-09 |
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