JP2000246743A - Manufacture of head restraint - Google Patents

Manufacture of head restraint

Info

Publication number
JP2000246743A
JP2000246743A JP11051774A JP5177499A JP2000246743A JP 2000246743 A JP2000246743 A JP 2000246743A JP 11051774 A JP11051774 A JP 11051774A JP 5177499 A JP5177499 A JP 5177499A JP 2000246743 A JP2000246743 A JP 2000246743A
Authority
JP
Japan
Prior art keywords
skin
mold
baglike
air
mixture
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
JP11051774A
Other languages
Japanese (ja)
Inventor
Shozo Muraishi
正三 村石
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.)
Tachi S Co Ltd
Original Assignee
Tachi S 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 Tachi S Co Ltd filed Critical Tachi S Co Ltd
Priority to JP11051774A priority Critical patent/JP2000246743A/en
Publication of JP2000246743A publication Critical patent/JP2000246743A/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
    • 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
    • B29C44/1266—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To make it possible to recycle a foamed urethane by keeping a mold with an air hole, in which an air-permeable baglike skin and an insert with a stay are arranged, heated and injecting a mixture of a urethane chip and a heat-curable binder into the baglike skin using high-pressure air to integrally combine the baglike skin with a pad. SOLUTION: An air-permeable baglike skin 33 and an insert 31 with a stay are arranged in a mold 11 with an air hole 20 in the manufacturing device 10, and the mold 11 is heated using a heater 18, and further, a mixture 34 of an urethane chip 35 and a heat-curable binder is injected into a baglike skin 33 with the help of high-pressure air. The high-pressure air is adjusted by a flow rate adjusting valve 17 and supplied to an injector 12. Further, the mixture 34 is sucked up from a storage tank 13 under the orifice effect of a suction nozzle 21 to be injected into the baglike skin 33 using an injection nozzle 19. The baglike skin 33 is made to adapt itself to the mold 11 by the heat of the heater 18 to increase the curing rate, and the urethane chip 35 is integrally combined with a pad 32 using the heat-curable binder to mold a product 30. Thus it is possible to recycle a foamed urethane.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の関係する分野】この発明は、発泡ウレタンをリ
サイクル可能にするところのヘッド・レストレイントの
製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a head restraint which makes urethane foam recyclable.

【０００２】[0002]

【背景技術】通常、ヘッド・レストレイントは、袋状表
皮、インサートおよびステイにウレタンを一体発泡させ
てその一体発泡ウレタンのパッドでそれらの一体化構造
に製造されるので、その発泡ウレタンはリサイクルが非
常に困難で廃棄されるのが現状である。2. Description of the Related Art In general, head restraints are manufactured by integrally foaming urethane into a bag-like skin, inserts and stays, and manufacturing them in an integrated structure with a pad of the integrally foamed urethane. Is very difficult and is currently disposed of.

【０００３】[0003]

【発明の課題】この発明の課題は、発泡されたウレタン
を容易にリサイクル可能にするところのヘッド・レスト
レイントの製造方法の提供にある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a head restraint which makes it possible to easily recycle foamed urethane.

【０００４】[0004]

【課題に相応する手段およびそれの作用】この発明は、
最初に、通気性の袋状表皮およびステイ付きインサート
が、空気孔を有する型に配置され、次に、その型が、加
熱状態に置かれ、引き続いて、ウレタン・チップと熱硬
化性バインダとの混合物が、高圧空気でその袋状表皮に
注入され、そして、その熱硬化性バインダでそのウレタ
ン・チップをパッドに一体化させてそれらの一体化構造
に成形する。Means corresponding to the object and the operation thereof
First, the breathable bladder and stayed insert are placed in a mold having an air hole, and then the mold is placed in a heated condition, followed by the urethane chip and thermoset binder. The mixture is injected into the bladder skin with high pressure air, and the thermoset binder integrates the urethane chips into the pads to form their integral structure.

【０００５】[0005]

【具体例の説明】以下、特定されて図示された具体例に
基づいて、この発明のヘッド・レストレイントの製造方
法を説明するに、図１は、乗用車のフロント・シートの
ヘッド・レストレイントを製造するところのこの発明の
ヘッド・レストレイントの製造方法を示し、そして、そ
のヘッド・レストレイントの製造方法では、ヘッド・レ
ストレイントの製造装置１０が用いられ、そして、その
製造装置１０で最初に、通気性の袋状表皮３３およびス
テイ付きインサート３１が、空気孔２０を有する型１１
に配置され、次に、その型１１がヒータ１８で加熱状態
に置かれ、引き続いて、ウレタン・チップ３５と熱硬化
性バインダとの混合物３４が、高圧空気でその袋状表皮
３３に注入され、そして、そのヒータ１８の熱でその袋
状表皮３３をその型１１に馴染ませ、固化速度を上げな
がらその熱硬化性バインダでそのウレタン・チップ３５
をパッド３２に一体化させ、そして、それらの一体化構
造のヘッド・レストレイント３０が成形される。勿論、
そのウレタン・チップ３５は、ウレタンの発泡品の微粒
チップである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for manufacturing a head restraint according to the present invention will be described with reference to a specific example shown and illustrated. FIG. 1 shows a head restraint of a front seat of a passenger car. The head restraint manufacturing method of the present invention for manufacturing a head restraint is shown. In the head restraint manufacturing method, a head restraint manufacturing apparatus 10 is used. In the apparatus 10, first, the air-permeable bag-like skin 33 and the stay-attached insert 31 are attached to the mold 11 having the air holes 20.
The mold 11 is then placed in a heated state with a heater 18, and subsequently a mixture 34 of urethane chips 35 and a thermosetting binder is injected into the bladder skin 33 with high pressure air, Then, the bag-like skin 33 is adapted to the mold 11 by the heat of the heater 18, and the urethane chip 35 is mixed with the thermosetting binder while increasing the solidification rate.
Are integrated with the pad 32, and the head restraint 30 of those integrated structures is formed. Of course,
The urethane chips 35 are fine chips made of urethane foam.

【０００６】その製造装置１０は、その型１１と、その
型１１の注入ノズル１９に接続される注入機１２と、そ
の混合物３４を充填し、そして、ホース２３でその注入
機１２の吸入ノズル２１に吸出し管２２を接続する貯蔵
槽１３と、送気配管２４でその注入機１２に接続される
コンプレッサ１４と、その送気配管２４に配置される電
磁弁１５と、その電磁弁１５の下流でその送気配管２４
に配置される減圧弁１６と、その減圧弁１６の下流でそ
の送気配管２４に配置される流量調整弁１７と、その型
１１を加熱するヒータ１８とを備え、そしてさらにリリ
ーフ弁（図示せず）なども備える。The manufacturing apparatus 10 fills the mold 11, the injector 12 connected to the injection nozzle 19 of the mold 11, and the mixture 34, and fills the hose 23 with the suction nozzle 21 of the injector 12. A storage tank 13 that connects the suction pipe 22 to the compressor, a compressor 14 that is connected to the injector 12 by an air supply pipe 24, a solenoid valve 15 that is disposed in the air supply pipe 24, and a downstream of the solenoid valve 15. The air supply pipe 24
, A flow regulating valve 17 disposed downstream of the pressure reducing valve 16 in the air supply pipe 24, and a heater 18 for heating the mold 11, and further provided with a relief valve (not shown). Zu) etc. are also provided.

【０００７】その製造装置１０は、予め製品硬に応じて
その減圧弁１６が圧力を、その流量調整弁１７が流量を
それぞれ設定され、また、その電磁弁１５が通電時間を
決められているので、その型１１にその袋状表皮３３お
よびステイ付きインサート３１をセットし、そして、そ
のヒータ１８を入れる。次に、そのコンプレッサ１４が
運転され、そして、その電磁弁１５が開かれる。その電
磁弁１５が開かれると、そのコンプレッサ１４で圧縮さ
れ、その減圧弁１６で減圧され、そしてさらに、その流
量調整弁１７で調整された高圧空気はその注入機１２に
流れる。その注入機１２は、その吸入ノズル２１がオリ
フィス効果によってその貯蔵槽１３からその混合物３４
を吸い上げるので、その注入ノズル１９によってその混
合物３４をその袋状表皮３３内に注入する。その設定時
間が経過されると、その電磁弁１５は閉じられてその混
合物の注入が止められ、そして、その混合物はそのヒー
タ１８の熱で固化速度を早められ、そのウレタン・チッ
プ３５はその熱硬化性バインダでそのパッド３２に一体
化される。そうすると、それらは、一体化構造のヘッド
・レストレイント３０に成形され、そして、その型１１
から取り出される。In the manufacturing apparatus 10, the pressure is set in advance by the pressure reducing valve 16 and the flow rate is set by the flow regulating valve 17 in accordance with the product hardness, and the energizing time of the solenoid valve 15 is determined in advance. Then, the bag-shaped outer skin 33 and the insert 31 with the stay are set in the mold 11, and the heater 18 is inserted. Next, the compressor 14 is operated, and the solenoid valve 15 is opened. When the solenoid valve 15 is opened, the high pressure air compressed by the compressor 14, depressurized by the pressure reducing valve 16, and further regulated by the flow regulating valve 17 flows to the injector 12. The injecting machine 12 has a suction nozzle 21 whose orifice effect causes the mixture 34 to be removed from the storage tank 13.
The mixture 34 is injected into the bag-like outer skin 33 by the injection nozzle 19. When the set time has elapsed, the solenoid valve 15 is closed to stop the injection of the mixture, and the mixture is solidified at an increased rate by the heat of the heater 18, and the urethane chip 35 is heated by the heat. The pad 32 is integrated with the curable binder. Then they are molded into a monolithic head restraint 30 and the mold 11
Taken out of

【０００８】そのように、その製造装置１０では、その
ヒータ１８の熱でその袋状表皮３３はその型１１に馴染
み、また、その混合物３４は固化速度を早められる。そ
の結果、製品の品質が向上されて製造時間も短縮され、
そして、発泡されたウレタンが容易にリサイクルされて
無駄な廃棄が未然に回避され、そして、希少資源の浪費
が抑制される。As described above, in the manufacturing apparatus 10, the bag-shaped outer skin 33 is adapted to the mold 11 by the heat of the heater 18, and the solidification rate of the mixture 34 is increased. As a result, product quality is improved and production time is reduced,
Then, the foamed urethane is easily recycled, wasteful disposal is avoided beforehand, and waste of scarce resources is suppressed.

【０００９】先に図面を参照して説明されたところのこ
の発明の特定された具体例から明らかであるように、こ
の発明の属する技術の分野における通常の知識を有する
者にとって、この発明の内容は、その発明の性質（ｎａ
ｔｕｒｅ）および本質（ｓｕｂｓｔａｎｃｅ）に由来
し、そして、それらを内在させると客観的に認められる
別の態様に容易に具体化される。勿論、この発明の内容
は、その発明の課題に相応し（ｂｅ ｃｏｍｍｅｎｓｕ
ｒａｔｅ ｗｉｔｈ）、そして、その発明の成立に必須
である。As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, one skilled in the art to which the present invention pertains will appreciate the subject matter of the present invention. Is the nature of the invention (na
), and are readily embodied in other aspects that are objectively recognized as including them. Of course, the content of the present invention corresponds to the subject of the invention (be commensu).
rate with) and essential for the invention.

【００１０】[0010]

【発明の便益】上述から理解されるように、この発明の
ヘッド・レストレイントの製造方法は、最初に、通気性
の袋状表皮およびステイ付きインサートが、空気孔を有
する型に配置され、次に、その型が、加熱状態に置か
れ、引き続いて、ウレタン・チップと熱硬化性バインダ
との混合物が、高圧空気でその袋状表皮に注入されるの
で、この発明のヘッド・レストレイントの製造方法で
は、その袋状表皮がその型に馴染み、また、その混合物
が固化速度を向上され、製品の品質が向上され、製造時
間も短縮され、発泡されたウレタンが容易にリサイクル
可能になり、無駄な廃棄が未然に回避され、そして、希
少資源の浪費が抑制されてそれの保護になり、その結
果、ヘッド・レストレイントにとって非常に有用で実用
的である。As will be appreciated from the foregoing, the method of manufacturing a head restraint of the present invention involves first placing a permeable bag-like skin and an insert with a stay in a mold having an air hole, Next, the mold is placed in a heated state, and subsequently, a mixture of urethane chips and a thermosetting binder is injected into the bag-like skin with high-pressure air, so that the head restraint of the present invention is used. In the manufacturing method, the bag-like skin conforms to the mold, and the mixture has an improved solidification rate, the quality of the product is improved, the manufacturing time is reduced, and the foamed urethane can be easily recycled. Wasteful disposal is avoided beforehand, and waste of scarce resources is reduced and protected, which is very useful and practical for head restraints.

【図面の簡単な説明】[Brief description of the drawings]

【図１】乗用車のフロント・シートのヘッド・レストレ
イントを製造するところのこの発明のヘッド・レストレ
イントの製造方法の説明に用いられるヘッド・レストレ
イントの製造装置を示した概説図である。FIG. 1 is a schematic view showing a head restraint manufacturing apparatus used for explaining a head restraint manufacturing method of the present invention for manufacturing a head restraint of a front seat of a passenger car. is there.

【符号の説明】[Explanation of symbols]

１１ 型 １２ 注入機 １３ 貯蔵槽 １４ コンプレッサ １８ ヒータ ２０ 空気孔 ３０ ヘッド・レストレイント ３１ インサート ３２ パッド ３３ 袋状表皮 ３４ 混合物 ３５ ウレタン・チップ 11 type 12 Injector 13 Storage tank 14 Compressor 18 Heater 20 Air hole 30 Head restraint 31 Insert 32 Pad 33 Bag-shaped skin 34 Mixture 35 Urethane chip

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｋ 103:00 Ｆターム(参考） 3B084 DD07 3B087 DC05 4F202 AA36 AA42 AA50 AD05 AD17 AG20 AH27 CA01 CB01 CB12 CB13 CP01 4F204 AA36 AA42 AA50 AD05 AD17 AG20 AH27 EA03 EA04 EB01 EB12 EB13 EF01 EF05 EF25 EF27 EK10 EK20 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B29K 103: 00 F term (Reference) 3B084 DD07 3B087 DC05 4F202 AA36 AA42 AA50 AD05 AD17 AG20 AH27 CA01 CB01 CB12 CB13 CP01 4F204 AA36 AA42 AA50 AD05 AD17 AG20 AH27 EA03 EA04 EB01 EB12 EB13 EF01 EF05 EF25 EF27 EK10 EK20

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 最初に、通気性の袋状表皮およびステイ
付きインサートが、空気孔を有する型に配置され、次
に、その型が、加熱状態に置かれ、引き続いて、ウレタ
ン・チップと熱硬化性バインダとの混合物が、高圧空気
でその袋状表皮に注入されるところのヘッド・レストレ
イントの製造方法。1. An air permeable bag-like skin and a stayed insert are first placed in a mold having an air hole, and then the mold is placed in a heated state, followed by a urethane chip and a heat sink. A method for producing a head restraint wherein a mixture with a curable binder is injected into the bag-like skin with high-pressure air. 【請求項２】 最初に、通気性の袋状表皮およびステイ
付きインサートが、空気孔を有する型に配置され、次
に、その型が、加熱状態に置かれ、引き続いて、ウレタ
ン・チップと熱硬化性バインダとの混合物が、高圧空気
でその袋状表皮に注入され、その際のその混合物の注入
が、製品硬さに応じてその空気の圧力および注入時間を
制御されるところのヘッド・レストレイントの製造方
法。2. An air permeable bladder and an insert with a stay are first placed in a mold having an air hole, and then the mold is placed in a heated state, followed by a urethane chip and a heat sink. A mixture with a curable binder is injected into the bag-like skin with high-pressure air, and the injection of the mixture is performed in a headless manner in which the pressure of the air and the injection time are controlled according to the hardness of the product. Manufacturing method of traint.
JP11051774A 1999-02-26 1999-02-26 Manufacture of head restraint Pending JP2000246743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11051774A JP2000246743A (en) 1999-02-26 1999-02-26 Manufacture of head restraint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11051774A JP2000246743A (en) 1999-02-26 1999-02-26 Manufacture of head restraint

Publications (1)

Publication Number Publication Date
JP2000246743A true JP2000246743A (en) 2000-09-12

Family

ID=12896306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11051774A Pending JP2000246743A (en) 1999-02-26 1999-02-26 Manufacture of head restraint

Country Status (1)

Country Link
JP (1) JP2000246743A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1354684A1 (en) * 2002-04-30 2003-10-22 Recticel Method and installation for producing a moulded bonded foam article
EP1359117A1 (en) * 2001-01-31 2003-11-05 Namba Press Works Co., Ltd. Filling device and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359117A1 (en) * 2001-01-31 2003-11-05 Namba Press Works Co., Ltd. Filling device and method
EP1359117A4 (en) * 2001-01-31 2004-08-18 Namba Press Kogyo Kk Filling device and method
US6899147B2 (en) 2001-01-31 2005-05-31 Namba Press Works Co., Ltd. Filling device and method
KR100722329B1 (en) * 2001-01-31 2007-05-28 남바프레스고교 가부시키가이샤 Filler material packing system and method
EP1354684A1 (en) * 2002-04-30 2003-10-22 Recticel Method and installation for producing a moulded bonded foam article
WO2003092983A1 (en) * 2002-04-30 2003-11-13 Recticel Method and installation for producing a moulded bonded foam article

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