JPH02198810A - Preparation of headrest - Google Patents
Preparation of headrestInfo
- Publication number
- JPH02198810A JPH02198810A JP1018786A JP1878689A JPH02198810A JP H02198810 A JPH02198810 A JP H02198810A JP 1018786 A JP1018786 A JP 1018786A JP 1878689 A JP1878689 A JP 1878689A JP H02198810 A JPH02198810 A JP H02198810A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- foamed resin
- slab material
- headrest
- 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.)
- Granted
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
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/385—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は表皮とフレーム及びクッションフオームを一体
成形するヘッドレストの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a headrest in which a skin, a frame, and a cushion form are integrally molded.
従来の技術
従来、第５図に示す如く表皮ＣとフレームＦに発泡樹脂
を発泡させてクッションフオームＰを一体接合したヘッ
ドレストを製造するにあたフては、′！Ｊ６図に示すよ
うにスラブ材Ｓを片面にラミネートした表皮Ｃを金型に
のキャビティ内に配置すると共にこのキャビティ内にフ
レームＦを吊り下げ配置し、しかる後にこのフレームＦ
とスラブ材Ｓとの隙間内に注入した発泡樹脂Ｅを発泡さ
せてクッションフオームＰをフレームＦ並びに表皮Ｃの
スラブ材Ｓと一体に接合成形することが行われている。BACKGROUND ART Conventionally, in order to manufacture a headrest in which a cushion foam P is integrally bonded to a skin C and a frame F by foaming foamed resin, as shown in FIG. As shown in FIG.
The foamed resin E injected into the gap between the frame F and the slab material S is foamed to form the cushion foam P integrally with the frame F and the slab material S of the skin C.
発明が解決しようとする課題
然し、このヘッドレストの製造方法では上型に、の注入
口に２から注入した発泡樹脂Ｅの原液がスラブ材Ｓに直
に接することになり、これではスラブ材Ｓに発泡樹脂Ｅ
が多量に含浸するから、スラブ材Ｓの硬度が高くなって
クツション性を損なう原因となる。Problems to be Solved by the Invention However, in this headrest manufacturing method, the stock solution of foamed resin E injected into the injection port from 2 into the upper mold comes into direct contact with the slab material S. Foamed resin E
Since a large amount of is impregnated, the hardness of the slab material S becomes high, which causes loss of cushioning properties.
この発泡樹脂Ｅの含浸量を低減するべくスラブ材Ｓと発
泡樹脂Ｅとの接合面に非通気性フィルムを介装すること
が行われているが、この方法ではクッションフオームＰ
が蒸れ易くなるばかりでなく、クッションフオームＰと
シート表皮Ｃとが剥離してセル荒れを起しこれもクツシ
ョン性を損なう原因となり、更には非通気性フィルムが
高価なのでコスト高になることを免れ得ない。In order to reduce the amount of impregnation of the foamed resin E, a non-breathable film is interposed on the joint surface of the slab material S and the foamed resin E. However, in this method, the cushion foam P
Not only does the cushion foam P and the seat skin C peel off, causing roughening of the cells, which also causes a loss of cushioning properties.Furthermore, the non-breathable film is expensive, so the cost can be avoided. I don't get it.
また、フレームＦにブロー成形品を使用する場合にはそ
の外表面が比較的平坦であるから、クッションフオーム
ＰはこのフレームＦを単に包み込むだけとなり、クッシ
ョンフオームＰとフレームＦが互いにずれ易くなるので
クッションフオームＰが変形したり相互の摺りによる騒
音が発生するのを免れ得ない。In addition, when a blow molded product is used for the frame F, its outer surface is relatively flat, so the cushion form P simply wraps around the frame F, making it easy for the cushion form P and frame F to shift from each other. It is inevitable that the cushion foam P will be deformed and noise will be generated due to mutual rubbing.
韮において、本発明は発泡樹脂Ｅの原液がスラブ材Ｓに
直に接するのを防止してスラブ材Ｓの硬化を防ぐと共に
、ブロー成形したフレームＦを使用する場合でもクッシ
ョンフオームＰとフレームＦとの係着を十分にしてクッ
ションフオームＰの変形や相互の摺りによる騒音を防止
可能なヘッドレストの製造方法を提供することを目的と
する。In this case, the present invention prevents the undiluted solution of the foamed resin E from coming into direct contact with the slab material S, thereby preventing the slab material S from hardening, and even when using a blow-molded frame F, the cushion foam P and the frame F are It is an object of the present invention to provide a method for manufacturing a headrest that can prevent noise caused by deformation of the cushion form P and mutual rubbing by sufficiently securing the cushion form P.
課題を解決するための手段
本発明に係るヘッドレストの製造方法においては、スラ
ブ材で裏打ちした表皮を金型のキャビティ内に配置する
と共に、このキャビティ内に吊り下げ配置したフレーム
の流出口を有する受け部に注入した発泡樹脂を発泡させ
て、クッションフオームをフレーム並びに表皮のスラブ
材と一体に接合成形するようにされている。Means for Solving the Problems In the method for manufacturing a headrest according to the present invention, a skin lined with a slab material is placed in a cavity of a mold, and a receiver having an outlet of a frame suspended in this cavity is provided. The foamed resin injected into the cushion foam is foamed to form the cushion foam integrally with the frame and the slab material of the skin.
作用
このヘッドレストの製造方法では金型のキャビティ内に
吊り下げ配置したフレームの受け部に注入した発泡樹脂
を発泡させるから、この発泡樹脂の原液がスラブ材に直
に接することがないので発泡樹脂の含浸量を少なくして
スラブ材の硬化を防ぐことができ、クツション性を良好
に保持することができるようになる。Function: In this headrest manufacturing method, the foamed resin injected into the receiving part of the frame suspended in the cavity of the mold is foamed, so the undiluted solution of the foamed resin does not come into direct contact with the slab material. By reducing the amount of impregnation, hardening of the slab material can be prevented, and cushioning properties can be maintained well.
また、クッションフオームはフレームの外表面を包み込
むと同時にこのフレームに設けた受け部に流出口を介し
て係着されているからずれることがなく、クッションフ
オームの変形や相互の摺りによる騒音を防止できるよう
になる。In addition, the cushion form wraps around the outer surface of the frame and at the same time is attached to the receiving part provided on the frame through the outlet, so it does not shift, which prevents deformation of the cushion form and noise caused by mutual rubbing. It becomes like this.
実施例
以下、第１〜４図を参照して説明すれば、次の通りであ
る。An example will be described below with reference to FIGS. 1 to 4.
このヘッドレストの製造方法は、フレーム１とスラブ材
２０を片面にラミネートした表皮２にウレタン等の発泡
樹脂３を発泡させてクッションフオーム３０を一体に接
合成形するのに適用されている。This headrest manufacturing method is applied to integrally bond and mold a cushion form 30 by foaming a foamed resin 3 such as urethane on a skin 2 in which a frame 1 and a slab material 20 are laminated on one side.
そのフレーム１は第１図に示すように略コ字状に折り曲
げた支持バイブ１０に樹脂材を一体にブロー成形して内
部に受け部１１を設けると共に、その受け部１１の両側
壁には受け部１１の底面より適宜な高さに位置する流出
口１２．１２を設け、且つ、成形に用いたブロー孔は注
入口１３としてそのまま残されている。As shown in FIG. 1, the frame 1 is made by integrally blow-molding a support vibrator 10 bent into a substantially U-shape with a resin material to provide a receiving part 11 therein. Outlet ports 12 and 12 are provided at appropriate heights from the bottom surface of the portion 11, and the blow holes used for molding are left as they are as injection ports 13.
発泡成形にあたっては第２図ａに示すように上型４と下
型５を備えた金型を用いて、スラブ材２０を上型４側に
向けると共に表皮２を型面に沿わせて下型５のキャビテ
ィ内に配置し、この下型５と支持バイブ１０の両脚を取
付孔４０．４０に挿入固定してフレーム１を吊り下げ配
置した上型４を型締めした後、上型４の注入口４１から
フレーム１の注入口１３を通して受け部１１内に適量の
発泡樹脂３の原液を注入しその後上型４の注入口４１を
閉塞する。For foam molding, a mold equipped with an upper mold 4 and a lower mold 5 is used as shown in FIG. After the lower mold 5 and both legs of the support vibrator 10 are inserted and fixed into the mounting holes 40 and 40, and the upper mold 4 with the frame 1 suspended therein is clamped, the upper mold 4 is placed in the cavity of the upper mold 4. An appropriate amount of the stock solution of the foamed resin 3 is injected from the inlet 41 into the receiving part 11 through the inlet 13 of the frame 1, and then the inlet 41 of the upper mold 4 is closed.
その受け部１１内に注入された発泡樹脂３は第２図すに
示すように発泡の進行に伴って流出口１２．１２から流
出してフレーム１とスラブ材２０との隙間内に充填され
、発泡が完了すると第２図Ｃの如くクッションフオーム
３０がフレーム１を包み込むと共にスラブ材２０と一体
に接合される。As shown in FIG. 2, the foamed resin 3 injected into the receiving part 11 flows out from the outlet 12.12 as the foaming progresses and fills the gap between the frame 1 and the slab material 20. When foaming is completed, the cushion foam 30 wraps around the frame 1 and is integrally joined to the slab material 20, as shown in FIG. 2C.
このようにしてクッションフオーム３０を発泡成形する
ときには発泡樹脂３の原液がフレーム１の受け部１１に
注入され、その後発泡の進行に伴って流出口１２．１２
から流出しフレーム１とスラブ材２０との隙間内に充填
されるから、スラブ材２０に含浸する発泡樹脂３を適量
に保てるのでスラブ材２０の硬化を防ぐことができてク
ツシ甘ン性を良好に保持することができるようになる。When foam-molding the cushion foam 30 in this way, the stock solution of the foamed resin 3 is injected into the receiving part 11 of the frame 1, and then as the foaming progresses, the outflow port 12.
Since the foamed resin 3 flows out from the foam and fills the gap between the frame 1 and the slab material 20, the foamed resin 3 impregnated into the slab material 20 can be maintained in an appropriate amount, preventing the slab material 20 from hardening and improving the shaving properties. be able to hold it.
また、この発泡が完了するとクッションフオーム３０が
フレーム１を包囲すると共に流出口１２．１２を介して
受け部１１内に充満して確りと係着されるからこのヘッ
ドレストに荷重が掛ってもクッションフオーム３０とフ
レーム１は相互にずれることがないので、クッションフ
オームｊＯの変形や摺りによる騒音の発生を防止できる
ようになる。Furthermore, when this foaming is completed, the cushion foam 30 surrounds the frame 1 and fills the receiving part 11 through the outlet 12, 12 and is securely attached, so that even if a load is applied to the headrest, the cushion foam 30 remains Since the 30 and the frame 1 do not shift relative to each other, it is possible to prevent noise from being generated due to deformation or rubbing of the cushion form jO.
なお、上述した実施例ではフレーム！をフロー成形し、
その内部に受け部１１を設けたが第３図に示すように樹
脂をフロー成形乃至は樹脂板や金属製の薄板を折り曲げ
成形することにより外表面に受け部６１と流出口６２．
６２を設けたフレーム６としても良い。In addition, in the above-mentioned embodiment, the frame! Flow molding,
A receiving portion 11 is provided inside, and as shown in FIG. 3, a receiving portion 61 and an outlet 62 are formed on the outer surface by flow molding resin or by bending and molding a resin plate or a thin metal plate.
The frame 6 may be provided with 62.
因に、流出口１２，１２．６２．６２の位置はその下端
縁が受け部ｔｔ、ａｔに注入される発泡樹脂３の上表面
からＯ〜５ＩＩ１１程度のわずかな上方に設けることに
より、良好なりッシ日ン性と強固な係着を得られること
が判った。Incidentally, the position of the outlet 12, 12, 62, 62 can be improved by arranging its lower edge slightly above the upper surface of the foamed resin 3 to be injected into the receiving portions tt, at. It was found that strong durability and strong attachment could be obtained.
また、スラブ材２０に含浸する発泡樹脂３の量を更に少
なくしたい場合には、第４図に示すように上型７の締付
面７０の全周に亘って凹部７１を設けると共にとの凹部
７１からキャビティ内に通じる隙間７２を設け、発泡成
形する過程においてこの凹部７１に適量の空気を供給す
ればスラブ材２０全体にこの空気が供給されるから発泡
樹脂３の含浸量を極めて少なくすることができるように
なる。In addition, if it is desired to further reduce the amount of foamed resin 3 impregnated into the slab material 20, a recess 71 is provided along the entire circumference of the clamping surface 70 of the upper mold 7, as shown in FIG. If a gap 72 is provided that communicates with the inside of the cavity from 71, and an appropriate amount of air is supplied to this recess 71 during the process of foam molding, this air will be supplied to the entire slab material 20, so the amount of impregnation of the foamed resin 3 can be extremely reduced. You will be able to do this.
発明の効果
以上の如く、本発明に係るヘッドレストの製造方法に依
れば、スラブ材に含浸する発泡樹脂の含浸を適量に保つ
ことができるからスラブ材の硬化を防止してクッシ日ン
性を良好に保持することができる。Effects of the Invention As described above, according to the headrest manufacturing method according to the present invention, it is possible to maintain an appropriate amount of foamed resin impregnated into the slab material, thereby preventing hardening of the slab material and improving the cushion's sunlight resistance. Can be held well.
また、クッションフオームとフレームは確りと係着され
るので、このヘッドレストに荷重が掛フてもクッション
フオームとフレームのずれによる変形や騒音の発生を防
止できるようになる。Further, since the cushion form and the frame are securely connected, even if a load is applied to the headrest, deformation and noise due to misalignment between the cushion form and the frame can be prevented.
第１図は本発明に係るヘッドレストの製造方法で使用す
るフレームの斜視図、第２図ａ、ｂ、ｃはフレーム内に
注入された発泡樹脂の発泡する過程を説明する説明図、
第３図は本発明に係るフレームの別の実施例を示す斜視
図、第４図は本発明に係る金型に空気の供給凹部を設け
て発泡成形する状態を示す部分横断面図、第５図はヘッ
ドレストの一般例を示す部分断面斜視図、第６図は従来
例に係るヘッドレストの製造方法を説明する横断面図で
ある。
１：フレーム、２：表皮、３：発泡樹脂、１！：受け部
、１２，１２：流出口、２０ニスラブ材、３０：クッシ
ョンフオーム。
目どυど
第
図
第
図
第
図FIG. 1 is a perspective view of a frame used in the headrest manufacturing method according to the present invention, and FIGS. 2 a, b, and c are explanatory diagrams illustrating the process of foaming the foamed resin injected into the frame.
FIG. 3 is a perspective view showing another embodiment of the frame according to the present invention, FIG. 4 is a partial cross-sectional view showing a state in which air supply recesses are provided in the mold according to the present invention and foam molding is performed, and FIG. FIG. 6 is a partially sectional perspective view showing a general example of a headrest, and FIG. 6 is a cross-sectional view illustrating a conventional headrest manufacturing method. 1: Frame, 2: Epidermis, 3: Foamed resin, 1! : Receiving part, 12, 12: Outlet, 20 Varnish slab material, 30: Cushion form. Eyes
Claims (1)
ビティ内に配置すると共に、このキャビティ内に吊り下
げ配置したフレーム（１）の流出口（１２，１２）を有
する受け部（１１）に注入した発泡樹脂（３）を発泡さ
せて、クッションフォーム（３０）をフレーム（１）並
びに表皮（２）のスラブ材（２０）と一体に接合成形す
るようにしたことを特徴とするへッドレストの製造方法
。A receiving part (11) having a skin (2) lined with a slab material (20) placed in a mold cavity, and having an outlet (12, 12) for a frame (1) suspended in this cavity. A headrest characterized in that the cushion foam (30) is integrally bonded and molded with the frame (1) and the slab material (20) of the skin (2) by foaming the foamed resin (3) injected into the headrest. manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1018786A JP2784421B2 (en) | 1989-01-27 | 1989-01-27 | Headrest manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1018786A JP2784421B2 (en) | 1989-01-27 | 1989-01-27 | Headrest manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02198810A true JPH02198810A (en) | 1990-08-07 |
| JP2784421B2 JP2784421B2 (en) | 1998-08-06 |
Family
ID=11981297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1018786A Expired - Fee Related JP2784421B2 (en) | 1989-01-27 | 1989-01-27 | Headrest manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2784421B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002160229A (en) * | 2000-11-28 | 2002-06-04 | Mitsuboshi Belting Ltd | Skin-integrated foamed molding with insert and its production method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154016A (en) * | 1984-01-24 | 1985-08-13 | Ikeda Bussan Co Ltd | Manufacture of head rest |
-
1989
- 1989-01-27 JP JP1018786A patent/JP2784421B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154016A (en) * | 1984-01-24 | 1985-08-13 | Ikeda Bussan Co Ltd | Manufacture of head rest |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002160229A (en) * | 2000-11-28 | 2002-06-04 | Mitsuboshi Belting Ltd | Skin-integrated foamed molding with insert and its production method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2784421B2 (en) | 1998-08-06 |
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