JP4564302B2 - 中空二重壁構造体およびその成形方法 - Google Patents
中空二重壁構造体およびその成形方法 Download PDFInfo
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- JP4564302B2 JP4564302B2 JP2004224441A JP2004224441A JP4564302B2 JP 4564302 B2 JP4564302 B2 JP 4564302B2 JP 2004224441 A JP2004224441 A JP 2004224441A JP 2004224441 A JP2004224441 A JP 2004224441A JP 4564302 B2 JP4564302 B2 JP 4564302B2
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- wall
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- 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
- B29C49/0031—Making articles having hollow walls
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- 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
- B29C2049/2021—Inserts characterised by the material or type
- B29C2049/2069—Inserts characterised by the material or type moulded in combination, e.g. injection moulded in the same mould before or after blow-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
- 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
- B29C44/08—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 using several expanding or moulding steps
-
- 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
- B29C44/18—Filling preformed cavities
- B29C44/186—Filling multiple cavities
-
- 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
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
-
- 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
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- 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
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
- B29C49/1602—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing pre-blowing without using a mould
-
- 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
- B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
- B29K2623/04—Polymers of ethylene
- B29K2623/06—PE, i.e. polyethylene
-
- 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
- B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
- B29K2623/10—Polymers of propylene
- B29K2623/12—PP, i.e. polypropylene
-
- 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
- B29K2625/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof for preformed parts, e.g. for inserts
- B29K2625/04—Polymers of styrene
- B29K2625/06—PS, i.e. polystyrene
-
- 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
- B29K2655/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2623/00 - B29K2649/00, e.g. having a vinyl group, for preformed parts, e.g. for inserts
- B29K2655/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
-
- 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
- B29K2667/00—Use of polyesters or derivatives thereof for preformed parts, e.g. for inserts
- B29K2667/003—PET, i.e. poylethylene terephthalate
-
- 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
- B29K2677/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, for preformed parts, e.g. for inserts
-
- 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
- B29K2701/00—Use of unspecified macromolecular compounds for preformed parts, e.g. for inserts
- B29K2701/12—Thermoplastic materials
-
- 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
- B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
- B29K2715/003—Cellular or porous
-
- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0091—Damping, energy absorption
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- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7178—Pallets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Pallets (AREA)
- Buffer Packaging (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
2 中空二重壁構造体
3 底壁
4 側壁
5 外壁
6 内壁
7 中空部
8 溶着部
9 閉鎖空間
10 発泡材
11 載置面
12 物品
13 一方の金型
14 他方の金型
15,15 キャビティ
16 閉鎖空間形成部
17 突出部
18 ブローノズル
19 押出ヘッド
20 パリソン
21 発泡樹脂粒子
Claims (3)
- ブロー成形によって一体に形成された熱可塑性樹脂製の中空二重壁構造体であって、
中空二重壁構造体は、外壁と内壁を有するとともに外壁と内壁により形成された中空部を有し、
その中空部の一部には、外壁と内壁の間隔を近接させて発泡樹脂粒子が通過しない隙間を形成する近接部により囲まれた前記中空部と連通する隔離空間が形成されていて、
前記隔離空間には充填した発泡樹脂粒子を発泡させた発泡材が密に充填されている
ことを特徴とする中空二重壁構造体。 - 中空二重壁構造体は、底壁とその底壁の周辺から起立する側壁を有する樹脂製パレットであって、
底壁にはその内壁に膨出するとともに内部に発泡材を密に充填した隔離空間を複数形成して緩衝性を有する載置面とした
ことを特徴とする請求項1記載の中空二重壁構造体。 - ブロー成形によって一体に形成された熱可塑性樹脂製の中空二重壁構造体であって、中空二重壁構造体は、外壁と内壁を有するとともに外壁と内壁により形成された中空部を有し、その中空部の一部には、外壁と内壁の間隔を近接させた近接部により囲まれた隔離空間が形成されていて、その隔離空間には発泡材が密に充填されている中空二重壁構造体の成形方法であって、
分割金型面に熱可塑性樹脂のパリソンを垂下させ、分割金型を型締めしてパリソンを挟み込み、加圧流体吹き込みノズルより加圧流体をパリソン内に吹き込み、パリソンを分割金型のキャビティ面に押圧させて中空二重壁構造体を形成するとともに、
中空二重壁構造体の中空部の一部に、発泡樹脂粒子が通過しない隙間を形成する近接部により囲まれた前記中空部と連通する隔離空間を形成し、
この隔離空間内に発泡樹脂粒子を充填して加熱水蒸気を吹き込んで発泡樹脂粒子を発泡させ、発泡樹脂粒子相互間および中空二重壁構造体の内面と接する発泡樹脂粒子とを一体に融着させた
ことを特徴とする中空二重壁構造体の成形方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004224441A JP4564302B2 (ja) | 2004-07-30 | 2004-07-30 | 中空二重壁構造体およびその成形方法 |
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JP2004224441A JP4564302B2 (ja) | 2004-07-30 | 2004-07-30 | 中空二重壁構造体およびその成形方法 |
Publications (2)
Publication Number | Publication Date |
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JP2006044675A JP2006044675A (ja) | 2006-02-16 |
JP4564302B2 true JP4564302B2 (ja) | 2010-10-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004224441A Expired - Fee Related JP4564302B2 (ja) | 2004-07-30 | 2004-07-30 | 中空二重壁構造体およびその成形方法 |
Country Status (1)
Country | Link |
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JP (1) | JP4564302B2 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06126811A (ja) * | 1991-12-27 | 1994-05-10 | Kyoraku Co Ltd | 樹脂製磁性板の製造方法 |
JPH09207207A (ja) * | 1996-01-31 | 1997-08-12 | Kyoraku Co Ltd | ハウジングパネルの製造方法 |
JP2000281036A (ja) * | 1999-03-31 | 2000-10-10 | Kyoraku Co Ltd | 収納ケースおよびその製造方法 |
-
2004
- 2004-07-30 JP JP2004224441A patent/JP4564302B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06126811A (ja) * | 1991-12-27 | 1994-05-10 | Kyoraku Co Ltd | 樹脂製磁性板の製造方法 |
JPH09207207A (ja) * | 1996-01-31 | 1997-08-12 | Kyoraku Co Ltd | ハウジングパネルの製造方法 |
JP2000281036A (ja) * | 1999-03-31 | 2000-10-10 | Kyoraku Co Ltd | 収納ケースおよびその製造方法 |
Also Published As
Publication number | Publication date |
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JP2006044675A (ja) | 2006-02-16 |
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