FR3078299B1 - SOUND ABSORPTION PART FOR AUTOMOTIVE VEHICLES AND ASSOCIATED MANUFACTURING PROCESS - Google Patents

SOUND ABSORPTION PART FOR AUTOMOTIVE VEHICLES AND ASSOCIATED MANUFACTURING PROCESS Download PDF

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Publication number
FR3078299B1
FR3078299B1 FR1851772A FR1851772A FR3078299B1 FR 3078299 B1 FR3078299 B1 FR 3078299B1 FR 1851772 A FR1851772 A FR 1851772A FR 1851772 A FR1851772 A FR 1851772A FR 3078299 B1 FR3078299 B1 FR 3078299B1
Authority
FR
France
Prior art keywords
base
hinge
manufacturing process
absorption part
cover
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.)
Active
Application number
FR1851772A
Other languages
French (fr)
Other versions
FR3078299A1 (en
Inventor
Sebastien Olivier
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.)
Adler Pelzer France Grand Est SAS
Original Assignee
Faurecia Automotive Industrie SAS
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 Faurecia Automotive Industrie SAS filed Critical Faurecia Automotive Industrie SAS
Priority to FR1851772A priority Critical patent/FR3078299B1/en
Priority to CN201920240129.8U priority patent/CN209833551U/en
Publication of FR3078299A1 publication Critical patent/FR3078299A1/en
Application granted granted Critical
Publication of FR3078299B1 publication Critical patent/FR3078299B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B29C44/04—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0446—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities by increasing the density locally by compressing part of the foam while still 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/585—Moulds with adjustable size of the mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • 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
    • B29C44/1285—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being foamed
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04—Polymers of styrene
    • B29K2025/06—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
    • 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
    • B29K2105/048—Expandable particles, beads or granules
    • 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
    • B29K2995/0001—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties
    • B29K2995/0002—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties insulating
    • 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

Abstract

La présente invention concerne une pièce (10) d'absorption acoustique pour véhicule automobile, formée d'un premier matériau plastique (12) expansé, ladite pièce comportant une base (14) définissant une cavité interne. La pièce comporte en outre un couvercle (18) et une charnière (20) articulant ledit couvercle à la base ; le couvercle étant apte à s'assembler avec ladite base dans une configuration fermée de ladite pièce. La base, le couvercle et la charnière sont formés de manière monobloc, ladite charnière (20) étant formée d'une bande flexible du premier matériau plastique (12) expansé ; le premier matériau plastique expansé présente une première densité au niveau de la base (14) et une deuxième densité, supérieure à la première densité, au niveau de la charnière.The present invention relates to an acoustic absorption part (10) for a motor vehicle, formed from a first foamed plastic material (12), said part comprising a base (14) defining an internal cavity. The part further comprises a cover (18) and a hinge (20) articulating said cover at the base; the cover being adapted to be assembled with said base in a closed configuration of said part. The base, cover and hinge are integrally formed, said hinge (20) being formed of a flexible strip of the first foamed plastic material (12); the first foamed plastic material has a first density at the base (14) and a second density, greater than the first density, at the hinge.

FR1851772A 2018-02-28 2018-02-28 SOUND ABSORPTION PART FOR AUTOMOTIVE VEHICLES AND ASSOCIATED MANUFACTURING PROCESS Active FR3078299B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1851772A FR3078299B1 (en) 2018-02-28 2018-02-28 SOUND ABSORPTION PART FOR AUTOMOTIVE VEHICLES AND ASSOCIATED MANUFACTURING PROCESS
CN201920240129.8U CN209833551U (en) 2018-02-28 2019-02-25 Sound-absorbing component for a motor vehicle and structure for a motor vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1851772 2018-02-28
FR1851772A FR3078299B1 (en) 2018-02-28 2018-02-28 SOUND ABSORPTION PART FOR AUTOMOTIVE VEHICLES AND ASSOCIATED MANUFACTURING PROCESS

Publications (2)

Publication Number Publication Date
FR3078299A1 FR3078299A1 (en) 2019-08-30
FR3078299B1 true FR3078299B1 (en) 2020-10-16

Family

ID=61873619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1851772A Active FR3078299B1 (en) 2018-02-28 2018-02-28 SOUND ABSORPTION PART FOR AUTOMOTIVE VEHICLES AND ASSOCIATED MANUFACTURING PROCESS

Country Status (2)

Country Link
CN (1) CN209833551U (en)
FR (1) FR3078299B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676033A (en) * 1968-04-30 1972-07-11 Robert B Buonaiuto Apparatus for making thermoplastic cellular products
KR101774600B1 (en) * 2009-04-03 2017-09-04 가몬드 피티와이 리미티드 Improved container
AU2015303820B2 (en) * 2014-08-12 2020-10-15 Icee Holdings Pty Ltd System and method for creating a fold in a portion of expandable material

Also Published As

Publication number Publication date
FR3078299A1 (en) 2019-08-30
CN209833551U (en) 2019-12-24

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