JPS6132735A - Preparation of headrest for vehicle - Google Patents

Preparation of headrest for vehicle

Info

Publication number
JPS6132735A
JPS6132735A JP15492084A JP15492084A JPS6132735A JP S6132735 A JPS6132735 A JP S6132735A JP 15492084 A JP15492084 A JP 15492084A JP 15492084 A JP15492084 A JP 15492084A JP S6132735 A JPS6132735 A JP S6132735A
Authority
JP
Japan
Prior art keywords
parison
headrest
slit
die head
fittings
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
Application number
JP15492084A
Other languages
Japanese (ja)
Inventor
Hidekazu Oike
秀和 大池
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Howa Plastics Co Ltd
Original Assignee
Howa Plastics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Howa Plastics Co Ltd filed Critical Howa Plastics Co Ltd
Priority to JP15492084A priority Critical patent/JPS6132735A/en
Publication of JPS6132735A publication Critical patent/JPS6132735A/en
Pending legal-status Critical Current

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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2008—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements inside the article
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3023—Head-rests
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To miniaturize an apparatus and to uniformize a surrounding wall thickness, by forming a slit to a tubular parison extruded downwardly in a vertical direction so as to extend the same in an up-and-down direction and inserting a headrest metal fitting into the parison from the slit to reduce the caliber of said parison. CONSTITUTION:A slit 5 is formed to the parison 3 suspending from a die head 1 by a cutter 4 so as to extend to an up-and-down direction. A headrest metal fitting 6 equipped with two mount parts 7, 7 is supported by a support apparatus 8 to be inserted into the parison 3 from the lateral side thereof through the slit 5 of said parison 3 and a pair of right and left molds 9, 9 are closed to perform blow molding.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はヘッドレスト金具を備えた車輛用ヘッドレスト
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a vehicle headrest equipped with headrest fittings.

（従来の技術） 車輛用ヘッドレストはヘッドレスト本体に取付用のヘッ
ドレスト金具を具備させたものを普通とするが、合成樹
脂製のヘッドレスト本体を製造しようとするときには予
めヘッドレスト金具を内部に挿入したヘッドレスト外皮
を製造しておくことが望ましい。このため最近ではダイ
ヘッドから下方に押出された管状のパリソンの下端面か
ら垂直上方にヘッドレスト金具を挿入したうえパリソン
をブロー成形する方法が一部採用されてきた。(Prior Art) Vehicle headrests are usually equipped with headrest metal fittings for attachment to the headrest body, but when manufacturing a headrest body made of synthetic resin, a headrest outer shell with headrest metal fittings inserted into the headrest body is used. It is desirable to manufacture For this reason, recently some methods have been adopted in which a headrest fitting is inserted vertically upward from the lower end surface of a tubular parison extruded downward from a die head, and then the parison is blow-molded.

（発明が解決しようとする問題点） ところがヘッドレスト金具は一般にその横幅が広いため
にパリソンの下方からヘッドレスト金具を挿入する場合
にはパリソンの口径をかなり大きくする必要があり、装
置が著しく大型化するとともにヘッドレスト外皮を適正
な肉厚にブロー成形することができないという問題があ
るうえに垂下してくるパリソンの下方にヘッドレスト金
具の支持装置を配置することは取扱い上にも種々の問題
を生じていた。(Problem to be Solved by the Invention) However, headrest fittings generally have a wide width, so when inserting headrest fittings from below the parison, the diameter of the parison needs to be made considerably large, which significantly increases the size of the device. In addition, there is a problem in that the headrest outer skin cannot be blow-molded to an appropriate thickness, and arranging the support device for the headrest metal fittings below the hanging parison also causes various problems in handling. .

（問題点を解決するための手段） 本発明は上記のような従来の問題点を解決するために完
成されたものであり、ダイヘッドから下方に押出された
管状のパリソンに上下方向に延びるスリットを形成して
該スリットを通じてヘッドレスト金具を側方からパリソ
ン内部に挿入したうえパリソンを両側から金型で挟んで
ヘッドレスト外皮をブロー成形後緩衝材を充填すること
を特徴とするものである。(Means for Solving the Problems) The present invention has been completed in order to solve the above-mentioned problems of the conventional art. The headrest metal fittings are inserted into the parison from the side through the slits, the parison is sandwiched between molds from both sides, and the headrest outer skin is blow-molded and then filled with a cushioning material.

（実施例） 次に本発明を図示の実施例について詳細に説明すれば、
（１１はダイヘッド、（２）はダイヘッド（１１から管
状のパリソン（３）を下方に押出すためのスクリューシ
リンダである。ダイヘッド（１１から下方に押出された
塩化ビニル樹脂等の合成樹脂からなるパリソン（３）は
ダイヘッド（１）の下方に設けられたカッター（４）に
よってその周面上の一部を連続的に切断され、パリソン
の上下方向に延びるスリット（５）が形成される。（６
）は２本の取付部（７）、（７）を備えたヘッドレスト
金具であり、（８）は該ヘッドレスト金具（６）を垂直
面内で横倒しにした姿勢で支持する水平方向に往復動で
きる支持装置である。ヘッドレスト金具（６）は支持装
置（８）に支持されて図示のように上記のパリソン（３
）のスリット（５）を通じてパリソン（３）の側方から
パリソン内部に挿入される。このとき、ヘッドレスト金
具（６）はその横幅方向がスリット（５）の方向に一致
するので、パリソン（３）の口径はへ・７ドレスト金具
（６）の横幅（Ｗ）ではなく高さくＨ）によって規制さ
れることとなり、一般的にヘッドレスト金具（６）は横
幅（Ｗ）より高さくＩ（）の方がかなり小さいので、パ
リソン（３）の口径は従来に比較して大幅に小さくする
ことができることとなる。このようにヘッドレスト金具
（６）がパリソン（３）の内部に挿入された状態でパリ
ソン（３）の両側から左右一対の金型（９）、（９）を
閉じ、エアーを供給して常法に従ってブロー成形を行え
ば、パリソン（３）は金型（９）、（９）の周縁部によ
って四方を挟まれ、そのキャビティ形状に沿って膨らん
でヘッドレスト外皮Ｑｌが成形される。このようにして
内部にヘッドレスト金具（６）の頭部が挿入されたヘッ
ドレスト外皮αωが成形された後は金型（９）、（９）
から取外し、後の工程において発泡剤を含んだウレタン
樹脂液等を注入し”ζ内部で発泡させる等の手段で緩衝
材を充填して完成品とすることは従来の車輛用ヘッドレ
ストの製造方法と変わるところがない。(Example) Next, the present invention will be explained in detail with reference to the illustrated example.
(11 is a die head, (2) is a screw cylinder for extruding the tubular parison (3) downward from the die head (11). The parison made of synthetic resin such as vinyl chloride resin extruded downward from the die head (11) (3) is continuously cut by a cutter (4) provided below the die head (1) to form a slit (5) extending in the vertical direction of the parison. (6)
) is a headrest metal fitting equipped with two mounting parts (7), (7), and (8) is capable of reciprocating in the horizontal direction to support the headrest metal fitting (6) in a vertical plane in a horizontal position. It is a support device. The headrest fitting (6) is supported by a support device (8) and is attached to the parison (3) as shown in the figure.
) is inserted into the parison from the side of the parison (3) through the slit (5). At this time, the width direction of the headrest fitting (6) matches the direction of the slit (5), so the diameter of the parison (3) is 7. The width (W) of the headrest fitting (6) is not the height H). Generally, headrest fittings (6) are taller than width (W) and I () is much smaller, so the diameter of parison (3) must be made much smaller than before. will be possible. With the headrest fitting (6) inserted inside the parison (3) in this way, close the pair of left and right molds (9) from both sides of the parison (3), supply air and use the usual method. When blow molding is performed according to the above, the parison (3) is sandwiched between the peripheral edges of the molds (9), (9) on all sides, and expands along the cavity shape to form the headrest outer skin Ql. After the headrest outer skin αω into which the head of the headrest fitting (6) is inserted is molded in this way, the molds (9), (9)
This method is different from the conventional manufacturing method for vehicle headrests, in which a urethane resin solution containing a foaming agent is injected in a later process to form a finished product by foaming inside the headrest. There is nothing that will change.

（発明の効果） 本発明は以上の説明からも明らかなように、ダイヘッド
から下方に押出された管状のパリソンに上下方向に延び
るスリットを形成し、該スリットを通じて−＼ソドレス
ト金具をパリソン内部に側方から挿入するようにしたの
で、従来のようにパリソンの下端面からヘッドレスト金
具を挿入する方法に比較してパリソンの口径を大幅に小
さくすることができ、装置の小型化と肉まわりの均一化
を図ることができ、また、ヘッドレスト金具の支持装置
をダイヘッドの直下に設ける必要がないのでその取扱い
が容易な利点もあり、従来の車輛用ヘッドレストの製造
方法の問題点を解決したものとして業界に寄与するとこ
ろは極めて大なものである。(Effects of the Invention) As is clear from the above description, the present invention forms a slit extending vertically in the tubular parison extruded downward from the die head, and inserts the sorest fitting into the inside of the parison through the slit. Since the headrest fittings are inserted from the lower end of the parison, the diameter of the parison can be significantly reduced compared to the conventional method of inserting the headrest fittings from the lower end of the parison. In addition, since there is no need to provide a support device for the headrest metal fitting directly under the die head, it is easy to handle, and has been recognized in the industry as a solution to the problems of the conventional vehicle headrest manufacturing method. The contribution is extremely large.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施に用いられる装置の一例を示す一
部切欠斜視図、第２図はその要部の正面図、第３図は同
じく要部の一部切欠平面図、第４図はブロー成形が終了
した状態において示す同じく要部の一部切欠平面図であ
る。 （１）：ダイヘッド、（３）：パリソン、（５）ニスリ
ット、（６）：ヘッドレスト金具、（９）：　　金型。 ０￥３図 ４図Fig. 1 is a partially cutaway perspective view showing an example of a device used to carry out the present invention, Fig. 2 is a front view of the main part thereof, Fig. 3 is a partially cutaway plan view of the main part, and Fig. 4 FIG. 2 is a partially cutaway plan view of the main part shown in a state where blow molding has been completed. (1): Die head, (3): Parison, (5) Nislit, (6): Headrest fittings, (9): Mold. 0￥3Figure 4Figure

Claims (1)

【特許請求の範囲】[Claims] ダイヘッドから下方に押出された管状のパリソンに上下
方向に延びるスリットを形成して該スリットを通じてヘ
ッドレスト金具を側方からパリソン内部に挿入したうえ
パリソンを両側から金型で挟んでヘッドレスト外皮をブ
ロー成形後緩衝材を充填することを特徴とする車輛用ヘ
ッドレストの製造方法。A slit extending vertically is formed in the tubular parison extruded downward from the die head, the headrest fittings are inserted into the parison from the side through the slit, the parison is sandwiched between molds from both sides, and the headrest outer skin is blow-molded. A method for manufacturing a headrest for a vehicle, characterized by filling it with a cushioning material.
JP15492084A 1984-07-25 1984-07-25 Preparation of headrest for vehicle Pending JPS6132735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15492084A JPS6132735A (en) 1984-07-25 1984-07-25 Preparation of headrest for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15492084A JPS6132735A (en) 1984-07-25 1984-07-25 Preparation of headrest for vehicle

Publications (1)

Publication Number Publication Date
JPS6132735A true JPS6132735A (en) 1986-02-15

Family

ID=15594840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15492084A Pending JPS6132735A (en) 1984-07-25 1984-07-25 Preparation of headrest for vehicle

Country Status (1)

Country Link
JP (1) JPS6132735A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1110697A2 (en) * 1999-12-22 2001-06-27 SOLVAY (Société Anonyme) Method for producing hollow objects made of thermoplastic material
LU102848B1 (en) * 2021-07-23 2023-01-23 Plastic Omnium Advanced Innovation & Res Component for motor vehicle tank

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109329A (en) * 1982-12-14 1984-06-25 Inoue Mtp Co Ltd Method for molding skin of headrest with part of insert therein

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109329A (en) * 1982-12-14 1984-06-25 Inoue Mtp Co Ltd Method for molding skin of headrest with part of insert therein

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1110697A2 (en) * 1999-12-22 2001-06-27 SOLVAY (Société Anonyme) Method for producing hollow objects made of thermoplastic material
BE1013191A3 (en) * 1999-12-22 2001-10-02 Solvay Method for producing hollow plastic material.
EP1110697A3 (en) * 1999-12-22 2001-12-05 SOLVAY (Société Anonyme) Method for producing hollow objects made of thermoplastic material
US6866812B2 (en) 1999-12-22 2005-03-15 Solvay (Societe Anonyme) Process for manufacturing hollow plastic bodies
US7166253B2 (en) 1999-12-22 2007-01-23 Solvay (Societe Anonyme) Process for manufacturing hollow plastic bodies
LU102848B1 (en) * 2021-07-23 2023-01-23 Plastic Omnium Advanced Innovation & Res Component for motor vehicle tank
WO2023002051A1 (en) * 2021-07-23 2023-01-26 Plastic Omnium Advanced Innovation And Research Component for motor vehicle tank

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