JP2005306310A - Manufacturing method of interior trim part for automobile - Google Patents
Manufacturing method of interior trim part for automobile Download PDFInfo
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- JP2005306310A JP2005306310A JP2004129103A JP2004129103A JP2005306310A JP 2005306310 A JP2005306310 A JP 2005306310A JP 2004129103 A JP2004129103 A JP 2004129103A JP 2004129103 A JP2004129103 A JP 2004129103A JP 2005306310 A JP2005306310 A JP 2005306310A
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- bracket
- resin
- instrument panel
- automobile
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- -1 polypropylene Polymers 0.000 claims description 9
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- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920002397 thermoplastic olefin Polymers 0.000 claims description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims description 3
- 239000004431 polycarbonate resin Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 2
- 238000005304 joining Methods 0.000 abstract description 8
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- 230000001678 irradiating effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 11
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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Images
Classifications
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
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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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3038—Air bag covers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Air Bags (AREA)
- Instrument Panels (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、エアバッグ展開用扉部を有するインストルメントパネルにブラケットを接合する方法に関する。 The present invention relates to a method of joining a bracket to an instrument panel having an airbag deployment door.
従来エアバッグドア一体型インストルメントパネルにおいて、エアバッグモジュールとインストルメントパネルを組み付ける部品（以後、ブラケットと記す。）は金属であり、エアバッグドア一体型インストルメントパネルは樹脂製であったが、ブラケットの重量が大きく、リサイクル性が悪かった為に、ブラケットを樹脂製に変更したが、ブラケットの剛性が大きくなりすぎ、エアバッグの展開時にエアバッグリッドが飛散してしまう等、製品性能を満たさなかった。そこで、ブラケットを熱可塑性エラストマー製にして、エアバッグドア一体型インストルメントパネルとの接合においては振動溶着を行っていた。しかし、従来の方法では接合の際に圧力と振動を加える為、インストルメントパネル全体（特にテア加工部分）にダメージが発生し、外観低下に繋がる。又、加工時の発熱量が大きい為、加工後のソリ発生等の原因となる。 Conventionally, in an airbag panel integrated instrument panel, a part (hereinafter referred to as a bracket) for assembling the airbag module and the instrument panel is metal, and the airbag door integrated instrument panel is made of resin. Because the bracket was heavy and its recyclability was poor, the bracket was changed to resin, but the bracket's rigidity became too great and the air bag grid would scatter when the airbag was deployed. It was. Therefore, the bracket is made of a thermoplastic elastomer, and vibration welding is performed in joining with the airbag door integrated instrument panel. However, in the conventional method, pressure and vibration are applied at the time of joining, so that the entire instrument panel (particularly the teared portion) is damaged, leading to a decrease in appearance. In addition, since the amount of heat generated during processing is large, it may cause warpage after processing.
このような課題を解決する為の従来技術として、レーザ溶着を用いたものがあった。（特許文献１） As a conventional technique for solving such a problem, there has been a technique using laser welding. (Patent Document 1)
本出願の課題は、従来の技術では、エアバッグリッド飛散防止の為に設置するヒンジ部材とエアバッグリッドとを接合する為にレーザ溶着を行っていたが、本発明においては、従来金属製のブラケットを使用してきたが、軽量化及びリサイクル性向上の為にブラケットをエラストマー製に変更したときに、振動溶着によって接合してきたものにレーザ溶着を使用するものである。 The problem of the present application is that, in the prior art, laser welding is performed to join the hinge member and the air grid to be installed to prevent the air grid from scattering, but in the present invention, a metal bracket is conventionally used. Although it has been used, laser welding is used for what has been joined by vibration welding when the bracket is changed to an elastomer to reduce weight and improve recyclability.
上記課題を解決する請求項１に係る発明は、エアバッグ用開口部を有し、レーザ吸収性を有する樹脂からなる自動車用内装材と、レーザ透過性を有する樹脂製のブラケットとを重ね、この状態でブラケット側からレーザ光を照射して前記自動車用内装材を加熱溶融せしめ前記ブラケットと溶着する自動車用内装品の製造方法にある。 The invention according to claim 1 for solving the above-mentioned problem is that an automobile interior material made of a resin having an air bag opening and having a laser absorptivity and a resin-made bracket having a laser transmission property are overlapped. In this state, there is a method for manufacturing an automobile interior product in which the automotive interior material is heated and melted by irradiating a laser beam from the bracket side and welded to the bracket.
請求項２に記載の発明は、前記自動車用内装材が熱可塑性樹脂製のエアバッグドア一体型インストルメントパネルであり、前記ブラケットが熱可塑性エラストマー製である請求項１に記載の自動車用内装品の製造方法にある。 According to a second aspect of the present invention, the automobile interior material is an airbag door integrated instrument panel made of a thermoplastic resin, and the bracket is made of a thermoplastic elastomer. It is in the manufacturing method.
請求項３に記載の発明は、前記エアバッグドア一体型インストルメントパネルが、ポリプロピレン樹脂、ＡＢＳ樹脂、ポリウレタン樹脂、ポリカーボネート樹脂、熱可塑性ポリオレフィン樹脂のうちから選ばれた少なくとも一つであり、前記ブラケットがポリオレフィン熱可塑性エラストマーからなる請求項２に記載の自動車用内装品の製造方法にある。 According to a third aspect of the present invention, the airbag door integrated instrument panel is at least one selected from polypropylene resin, ABS resin, polyurethane resin, polycarbonate resin, and thermoplastic polyolefin resin, and the bracket. The method according to claim 2, which comprises a polyolefin thermoplastic elastomer.
請求項４に記載の発明は、前記ブラケットにリブを設け、該リブと自動車用内装材とを融着する請求項１から３のいずれかに記載の自動車用内装品の製造方法にある。 According to a fourth aspect of the present invention, there is provided a method for manufacturing an automobile interior product according to any one of claims 1 to 3, wherein a rib is provided on the bracket, and the rib and the automobile interior material are fused.
請求項１に記載の発明は、エアバッグ用開口部を有し、レーザ吸収性を有する樹脂からなる自動車用内装材と、レーザ透過性を有する樹脂製のブラケットとを重ね、この状態でブラケット側からレーザ光を照射して前記自動車用内装材を加熱溶融せしめ前記ブラケットと溶着する自動車用内装品の製造方法であることから、製品に余分な力が掛かることが無く、又、発熱範囲が局所的であるので、接合時にティアライン加工部分の白化や変形がしにくいという効果がある。 According to the first aspect of the present invention, an automobile interior material made of a resin having an airbag opening and made of a laser-absorbing resin and a resin-made bracket having a laser permeability are stacked, and in this state, the bracket side Therefore, it is possible to heat and melt the automotive interior material and weld it to the bracket so that no excessive force is applied to the product and the heat generation range is locally Therefore, there is an effect that it is difficult to whiten or deform the tear line processed portion at the time of joining.
請求項２に記載の発明は、前記自動車用内装材が熱可塑性樹脂製のエアバッグドア一体型インストルメントパネルであり、前記ブラケットが熱可塑性エラストマー製である請求項１に記載の自動車用内装品の製造方法にあることから、よりレーザ溶着が確実に行われるという効果がある。 According to a second aspect of the present invention, the automobile interior material is an airbag door integrated instrument panel made of a thermoplastic resin, and the bracket is made of a thermoplastic elastomer. Therefore, there is an effect that laser welding is more reliably performed.
請求項３に記載の発明は、前記エアバッグドア一体型インストルメントパネルが、ポリプロピレン樹脂、ＡＢＳ樹脂、ポリウレタン樹脂、ポリカーボネート樹脂、熱可塑性ポリオレフィン樹脂のうちから選ばれた少なくとも一つであり、前記ブラケットがポリオレフィン熱可塑性エラストマーからなる請求項２に記載の自動車用内装品の製造方法であることから、より溶着強度が大きくなる。 According to a third aspect of the present invention, the airbag door integrated instrument panel is at least one selected from polypropylene resin, ABS resin, polyurethane resin, polycarbonate resin, and thermoplastic polyolefin resin, and the bracket. Since it is a manufacturing method of the interior product for motor vehicles of Claim 2 which consists of polyolefin thermoplastic elastomer, welding strength becomes larger.
以下、図面を参照しつつ本発明の実施形態を説明する。図1は本発明に係るエアバッグドア一体インストルメントパネル１の概略図である。図２は、ブラケット７の概略図である。図３はエアバッグドア一体インストルメントパネル１とブラケット７とを溶着した状態を示した断面図である。図４は本発明のインストルメントパネル一体型エアバッグドア１の製造方法を示した概略図である。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of an instrument panel 1 integrated with an airbag door according to the present invention. FIG. 2 is a schematic view of the
図示しないエアバッグモジュールとエアバッグドア一体型インストルメントパネル１とを接合するために図２に示すブラケット７を用いる。図１のエアバッグドア一体型インストルメントパネル１と図２に示すブラケット７を一体化したものが図３に示されている。このとき、エアバッグドア一体型インストルメントパネル１とブラケット７とを接合する為にレーザを用いるが、平面同士を接合するよりもブラケット７にリブ９を設けて、リブ９先端をヒートスポット部としてレーザ光をより多く吸収するようにした方が好ましい。
A
図４から図６に示すように、レーザ光をブラケット７側から当て、ブラケット７を透過させてエアバッグドア一体型インストルメントパネル１側でレーザ光を吸収し、リブ９先端部が溶融し、冷却してエアバッグドア一体型インストルメントパネル１とブラケット７との溶着が終了する。
As shown in FIGS. 4 to 6, the laser beam is applied from the
ここに、透過性エラストマーとしては、熱可塑性を有し、かつ、加熱源としてのレーザ光に対して所定以上の透過率を有するものであれば特に限定されない。例えば、ポリオレフィンエラストマー（ＴＰＯ）、ポリウレタンエラストマー（ＴＰＵ）、スチレン−ブタジエン系エラストマー（ＳＢＣ）、ポリエステル系エラストマー（ＴＰＥＥ）、ポリ塩化ビニル系エラストマー（ＴＰＶＣ）等を挙げることができる。原価が低減できることと、リサイクル性の面からは、熱可塑性ポリオレフィンエラストマーを使用することが好ましい。更に、必要に応じて、ガラス繊維、カーボン繊維等の補強繊維や着色材を添加したものを用いても良い。 Here, the transmissive elastomer is not particularly limited as long as it has thermoplasticity and has a predetermined transmittance or more with respect to laser light as a heating source. Examples thereof include polyolefin elastomer (TPO), polyurethane elastomer (TPU), styrene-butadiene elastomer (SBC), polyester elastomer (TPEE), and polyvinyl chloride elastomer (TPVC). From the viewpoint of cost reduction and recyclability, it is preferable to use a thermoplastic polyolefin elastomer. Furthermore, you may use what added reinforcing fibers and coloring materials, such as glass fiber and carbon fiber, as needed.
上記吸収性樹脂材としては、熱可塑性を有し、加熱源としてのレーザ光に対して所定以上の吸収率を有するものであれば特に限定されない。例えばナイロン６（ＰＡ６）やナイロン６６（ＰＡ６６）等のポリアミド（ＰＡ）、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）やスチレン−アクリロニトリル共重合体、ポリエチレンテレフタレート（ＰＥＴ）、ポリスチレン、ＡＢＳ、アクリル（ＰＭＭＡ）、ポリプロピレンコンパウンド（ＰＰＣ）、ポリブチレンテレフタレート（ＰＢＴ）等にカーボンブラック、染料や顔料等の所定の着色材を混入したものを挙げることができる。尚、必要に応じて、ガラス繊維やカーボン繊維等の補強繊維を添加したものを用いてもよい。 The absorptive resin material is not particularly limited as long as it has thermoplasticity and has an absorptance greater than or equal to a predetermined level with respect to laser light as a heating source. For example, polyamide (PA) such as nylon 6 (PA6) and nylon 66 (PA66), polyethylene (PE), polypropylene (PP), styrene-acrylonitrile copolymer, polyethylene terephthalate (PET), polystyrene, ABS, acrylic (PMMA) , Polypropylene compound (PPC), polybutylene terephthalate (PBT), and the like may be mixed with a predetermined colorant such as carbon black, a dye or a pigment. In addition, you may use what added reinforcement fibers, such as glass fiber and carbon fiber, as needed.
実施例として、照射に使用するレーザ光はＹＡＧレーザ（波長１０６０ｎｍ）とした。又、エアバッグドア一体型インストルメントパネルの樹脂材をポリプロピレンコンパウンド（ＰＰＣ）、ブラケットのエラストマー材を熱可塑性オレフィンとした。このとき、ブラケットにはリブ（高さ１〜５ｍｍ）を設置し、エアバッグドア一体型インストルメントパネルの前記リブに該当する箇所をレーザ光で溶融し、ブラケットのリブと溶着するようにした。そして、エアバッグドア一体型インストルメントパネル側からレーザ光を照射した。 As an example, the laser beam used for irradiation was a YAG laser (wavelength 1060 nm). The resin material for the airbag door integrated instrument panel was polypropylene compound (PPC), and the elastomer material for the bracket was thermoplastic olefin. At this time, a rib (height of 1 to 5 mm) was installed on the bracket, and a portion corresponding to the rib of the airbag door integrated instrument panel was melted with a laser beam and welded to the rib of the bracket. And the laser beam was irradiated from the airbag panel integrated instrument panel side.
レーザ光の照射条件は、出力１０〜２５０Ｗ、加工速度；６０〜４０００ｍｍ／ｍｉｎとした。このときの加圧強度、発熱範囲、溶着部分以外への影響を表１に示す。 Laser light irradiation conditions were an output of 10 to 250 W and a processing speed of 60 to 4000 mm / min. Table 1 shows the influence on the pressure strength, the heat generation range, and the welded portion other than the above.
又、従来例として、振動溶着にて、エアバッグドア一体型インストルメントパネルとブラケットとを溶着した。このときもブラケットにリブを設置してリブの先端とエアバッグドア一体型インストルメントパネルとを溶着した。条件としては、２００〜６００ＨＺの振動数を接合面に与えて溶着を行った。そのときの加圧強度、発熱範囲、溶着部分以外への影響を表１に示す。 As a conventional example, the airbag door integrated instrument panel and the bracket were welded by vibration welding. At this time, a rib was installed on the bracket, and the tip of the rib was welded to the airbag door integrated instrument panel. As conditions, welding was performed by applying a frequency of 200 to 600 HZ to the joint surface. Table 1 shows the influence on the pressure strength, the heat generation range, and the area other than the welded portion.
表１の結果からも、実施例は、従来例と比べて、小さい加圧で、又、接合する箇所のみ発熱することから、溶着部分以外への影響も少なく、外観も向上することがわかる。 From the results shown in Table 1, it can be seen that the example produces less heat than the conventional example, and generates heat only at the joining portion, so that there is little influence on other than the welded portion and the appearance is improved.
１ エアバッグドア一体型インストルメントパネル
３ エアバッグリッド
５ ティアライン
７ ブラケット
９ リブ
１１溶着部
１３発熱部
DESCRIPTION OF SYMBOLS 1 Airbag door integrated
Claims (4)
The manufacturing method of the interior product for motor vehicles in any one of Claim 1 to 3 which provides a rib in the said bracket and welds this rib and the interior product for motor vehicles.
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| JP2004129103A JP2005306310A (en) | 2004-04-26 | 2004-04-26 | Manufacturing method of interior trim part for automobile |
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|---|---|---|---|
| JP2004129103A JP2005306310A (en) | 2004-04-26 | 2004-04-26 | Manufacturing method of interior trim part for automobile |
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| JP2005306310A true JP2005306310A (en) | 2005-11-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100747866B1 (en) | 2006-05-12 | 2007-08-08 | 현대자동차주식회사 | Passenger airbag door structure |
| JP2009107178A (en) * | 2007-10-29 | 2009-05-21 | Toyota Boshoku Corp | Laser welding structure and laser welding method |
| JP2010064741A (en) * | 2008-09-12 | 2010-03-25 | Jenoptik Automatisierungstechnik Gmbh | Airbag cover provided with launch passage and method and device for manufacturing the airbag cover |
| JP2012192851A (en) * | 2011-03-17 | 2012-10-11 | Kasai Kogyo Co Ltd | Vehicular interior material |
| US8343409B2 (en) | 2007-06-22 | 2013-01-01 | Ford Global Technologies, Llc | Molding system and molded-in-color panel |
| US9090003B2 (en) | 2007-02-12 | 2015-07-28 | Ford Global Technologies, Llc | Molded-in-color vehicle panel and mold |
| JP2022121259A (en) * | 2021-02-08 | 2022-08-19 | 昭和電工株式会社 | Instrument panel and manufacturing method thereof |
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2004
- 2004-04-26 JP JP2004129103A patent/JP2005306310A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100747866B1 (en) | 2006-05-12 | 2007-08-08 | 현대자동차주식회사 | Passenger airbag door structure |
| US9090003B2 (en) | 2007-02-12 | 2015-07-28 | Ford Global Technologies, Llc | Molded-in-color vehicle panel and mold |
| US8343409B2 (en) | 2007-06-22 | 2013-01-01 | Ford Global Technologies, Llc | Molding system and molded-in-color panel |
| JP2009107178A (en) * | 2007-10-29 | 2009-05-21 | Toyota Boshoku Corp | Laser welding structure and laser welding method |
| JP2010064741A (en) * | 2008-09-12 | 2010-03-25 | Jenoptik Automatisierungstechnik Gmbh | Airbag cover provided with launch passage and method and device for manufacturing the airbag cover |
| EP2163373A3 (en) * | 2008-09-12 | 2015-03-18 | JENOPTIK Automatisierungstechnik GmbH | Airbag cover with chute channel and method and device for manufacturing such an airbag cover |
| DE102008047676B4 (en) | 2008-09-12 | 2019-02-14 | Jenoptik Automatisierungstechnik Gmbh | Airbag cover with shot channel and method and apparatus for producing such an airbag cover |
| JP2012192851A (en) * | 2011-03-17 | 2012-10-11 | Kasai Kogyo Co Ltd | Vehicular interior material |
| JP2022121259A (en) * | 2021-02-08 | 2022-08-19 | 昭和電工株式会社 | Instrument panel and manufacturing method thereof |
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