JP7205398B2 - 車両用内装部材 - Google Patents
車両用内装部材 Download PDFInfo
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- JP7205398B2 JP7205398B2 JP2019112368A JP2019112368A JP7205398B2 JP 7205398 B2 JP7205398 B2 JP 7205398B2 JP 2019112368 A JP2019112368 A JP 2019112368A JP 2019112368 A JP2019112368 A JP 2019112368A JP 7205398 B2 JP7205398 B2 JP 7205398B2
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- 239000000463 material Substances 0.000 title claims description 79
- 239000011162 core material Substances 0.000 claims description 338
- 230000002093 peripheral effect Effects 0.000 claims description 139
- 238000000034 method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 7
- 238000009958 sewing Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 210000003491 skin Anatomy 0.000 description 161
- 125000006850 spacer group Chemical group 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 8
- -1 polypropylene Polymers 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Landscapes
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Description
車室内に露出する車両用内装部材に、優れた意匠性を付与するべく、車両用内装部材の外面を表皮で構成する技術が知られている(例えば、特許文献1参照)。
本発明は上記事情に鑑みてなされたものであり、意匠性に優れる車両用内装部材を作業性高く製造できる技術を提供することを目的とする。
車両搭載部材の基材面上に取付けられる内装部材であって、
第1芯材と、
前記第1芯材よりも軟質であり、前記第1芯材の表面に重ねられ、その周縁部の少なくとも一部が前記第1芯材の裏面側に折り返されて前記第1芯材の周縁部を挟み込む断面U字状の第1リム部を形成する第1表皮と、
前記第1芯材の前記裏面に対して裏面を向けつつ前記第1芯材に重ねられている第2芯材と、
前記第2芯材よりも軟質であり、前記第2芯材の表面に重ねられ、その周縁部の少なくとも一部が前記第2芯材の前記裏面側に折り返されて前記第2芯材の周縁部を挟み込む断面U字状の第2リム部を形成する第2表皮と、
前記第1リム部、前記第1リム部に挟み込まれた前記第1芯材の周縁部、前記第2リム部、および、前記第2リム部に挟み込まれた前記第2芯材の周縁部を縫い合わせるステッチ部と、を有するものである。
本発明の車両用内装部材は、これらの車両搭載部材の基材面上に取付けられ、車室に露出する、装飾パネルともいい得る。
つまり、本発明の車両用内装部材におけるこれらの各要素は、第1表皮、第1芯材、第2芯材および第2表皮の順に重ねられる。このうち第1芯材および第2芯材は本発明の車両用内装部材における内側に隠され、本発明の車両用内装部材の外面には第1表皮および第2表皮が露出するといえる。
なお、本明細書において、「重ね」られた二つの要素は、互いに接触しても良いし非接触であっても良い。更には、当該二つの要素の間に他の要素が介在しても良い。
同様に、第2表皮は、第2芯材の表面に重ねられる。第2表皮の周縁部の少なくとも一部である第2リム部は、第2芯材の裏面側に折り返される。したがって、第2芯材の周縁部の少なくとも一部は、当該第2リム部によって挟み込まれる。第2リム部は、第2芯材の表側から裏側に向けて折り返されるために断面略U字状をなす。
以下、必要に応じて、第1リム部に挟み込まれた第1芯材の周縁部を第1周縁芯部と称し、第2リム部に挟み込まれた第2芯材の周縁部を第2周縁芯部と称する。
このため、本発明の車両用内装部材の製造時において、第1リム部、第1周縁芯部、第2リム部、および、第2周縁芯部を位置決めするためには、第1芯材と第2芯材とを位置決めするだけで足る。また、第1リム部、第1周縁芯部、第2リム部、および、第2周縁芯部は、ステッチ部により一旦縫い合わされると互いに固定されるため、取り扱い性にも優れる。
さらに、上記したように、第1芯材の厚さおよび第2芯材の厚さを適宜設定することで、第1リム部の厚さおよび第2リム部の厚さを自在に調整できる。
このような本発明の車両用内装部材は、意匠性に優れるにも拘らず作業性高く製造することが可能である。
第1芯材および第2芯材が互いに異なる形状である場合には、第1リム部、第1周縁芯部、第2リム部、および、第2周縁芯部をステッチ部で縫い合わせる都合上、少なくとも、第1芯材の第1周縁芯部、および、第2芯材の第2周縁芯部が、車両用内装部材の厚さ方向において対面する位置にあることが必要とされる。
第1芯材および第2芯材のロックウェル硬さについて、好ましい下限はないが、第1芯材および第2芯材が第1表皮および第2表皮よりも硬質であることを鑑みると、ロックウェル硬さHRR10以上であるのが好ましく、20以上であるのがより好ましい。
第1芯材の厚さおよび第2芯材の厚さは、本発明の車両用内装部材に要求される外形に応じて適宜設定すれば良いが、ステッチ部により縫い合わせる都合上、0.18~1.0mmの範囲内であるのが好ましい。
第1表皮および第2表皮の厚さもまた、本発明の車両用内装部材に要求される外形に応じて適宜設定すれば良いが、ステッチ部により縫い合わせる都合上、0.2~3.0mmの範囲内であるのが好ましい。
例えば、本発明の車両用内装部材の全体が車室内に露出する場合には、第1表皮が第1芯材の全体を覆いかつ第2表皮が第2芯材の全体を覆うのが好ましい。しかし、本発明の車両用内装部材における周縁部の一部のみが車室内に露出し当該周縁部の他の部分が隠される場合には、当該隠される部分において、第1芯材は第1表皮で覆われなくても良く、かつ、第2芯材は第2表皮で覆われなくても良い。但し、この場合にも、第1表皮は第1芯材の第1周縁芯部を覆う第1リム部を有し、第2表皮は第2芯材の第2周縁芯部を覆う第2リム部を有することを必須とする。
以下、必要に応じて、第1リム部のうち第1周縁芯部の表面を覆う部分を第1表リム部と称し、第1リム部のうち第1周縁芯部の裏面を覆う部分を第1裏リム部と称する。また、第2リム部のうち第2周縁芯部の表面を覆う部分を第2表リム部と称し、第2リム部のうち第2周縁芯部の裏面を覆う部分を第2裏リム部と称する。
以下、必要に応じて、第1表皮の中央部分を第1一般表皮部と称し、第1芯材の中央部分を第1一般芯部と称し、第2芯材の中央部分を第2一般芯部と称し、第2表皮の中央部分を第2一般表皮部と称する。
しかし、本発明の車両用内装部材を製造する際には、例えば、第1芯材および第2芯材を基材面に沿った曲げ形状に予め賦形し、賦形された第1芯材および第2芯材に沿って第1表皮および第2表皮を重ね、第1リム部および第2リム部を折り返せば良い。そうすることで、第1表皮および第2表皮は、自然と、第2一般表皮部が第1一般表皮部よりもやや小さくなるように整えられる。この状態で、第1リム部、第1周縁芯部、第2リム部および第2周縁芯部を縫い合わせれば、曲げ形状をなす本発明の車両用内装部材が得られる。つまり、本発明の車両用内装部材は、製造時において第1表皮および第2表皮を中表に縫い合わせたり裏返したりする作業が不要であるため、形状の自由度に優れる。
実施例1の車両用内装部材を模式的に表す説明図を図1に示す。車両搭載部材に取付けた実施例1の車両用内装部材を図1中のA-A位置で切断した様子を模式的に表す説明図を図2に示す。以下、上、下とは鉛直方向における上、下を指し、前、後、左、右とは車両進行方向における前、後、左、右を意味するものとする。左右方向は車幅方向であり、前後方向は車両進行方向である。
実施例1の車両用内装部材1を取付ける車両搭載部材9の基材90は、屈曲形状を有する。したがって、当該基材90のうち、実施例1の車両用内装部材1が取付けられる基材面91もまた、曲面である。
第2芯材4もまた、第2一般芯部40と第2周縁芯部41とを有する。第2一般芯部40は第2芯材4の中央部分であり、第2周縁芯部41は第2芯材4の周縁部である。第2周縁芯部41は、第2芯材4の周方向全周にわたって設けられている。
具体的には、第2一般表皮部50と第2一般芯部40とは接着されている。第2表リム部51Fと第2周縁芯部41とは接着され、第2裏リム部51Bと第2周縁芯部41とは接着されている。
具体的には、クッション材60と第1一般芯部20とは接着されている。クッション材60と第1一般表皮部30ともまた接着されている。さらに、第1表リム部31Fは第1周縁芯部21に接着され、第1裏リム部31Bは第1周縁芯部21に接着されている。
第1リム部31、第1周縁芯部21、第2リム部51、および第2周縁芯部41は、ステッチ部7により縫い合わされている。
また、実施例1の車両用内装部材1において、第1周縁芯部21を挟み込む第1リム部31は、当該第1周縁芯部21に沿った形状を示す。また、第2周縁芯部41を挟み込む第2リム部51は、当該第2周縁芯部41に沿った形状を示す。このため、第1リム部31の厚さと第2リム部51の厚さとを略同じにするためには、第1表皮3と第2表皮5の厚さとを略同じにし、かつ、第1周縁芯部21の厚さと第2周縁芯部41の厚さとを略同じにするだけで足る。したがって、実施例1の車両用内装部材1は、優れた意匠性を有するにも拘らず、作業性高く製造できるといえる。
実施例1の車両用内装部材1は、その周縁部の全周にわたって第1リム部31および第2リム部51を有する。このため、実施例1の車両用内装部材1はその全体が車室内に露出する場合にも、優れた意匠性を示す。これは、既述したように、本発明の車両用内装部材1の構造に起因するといい得る。
実施例2の車両用内装部材は、第2芯材にスペーサを一体化し、かつ、第1ファスナーにかえて係合爪を設けて、当該係合爪を更に第2芯材に一体化したものである。実施例2の車両用内装部材は、このこと以外は、実施例1の車両用内装部材と概略同じものである。
車両搭載部材に取付けた実施例2の車両用内装部材を図1中のA-A位置と同位置で切断した様子を模式的に表す説明図を図3に示す。
しかし、第2芯材4の第2周縁芯部41の厚さと第1芯材2の第1周縁芯部21の厚さとは、実施例2の車両用内装部材1においても略同じである。したがって、実施例2の車両用内装部材1においても、第1リム部31および第2リム部51は略同じ厚さであり均質な見た目である。よって、実施例2の車両用内装部材1もまた、意匠性に優れる。
21:第1周縁芯部(第1芯材の周縁部) 2F:第1芯材の表面
2B:第1芯材の裏面 3:第1表皮
31:第1リム部 4:第2芯材
41:第2周縁芯部(第2芯材の周縁部) 4F:第2芯材の表面
4B:第2芯材の裏面 5:第2表皮
51:第2リム部 7:ステッチ部
60:クッション材 9:車両搭載部材
91:基材面
Claims (5)
- 車両搭載部材の基材面上に取付けられる内装部材であって、
第1芯材と、
前記第1芯材よりも軟質であり、前記第1芯材の表面に重ねられ、その周縁部の少なくとも一部が前記第1芯材の裏面側に折り返されて前記第1芯材の周縁部を挟み込む断面U字状の第1リム部を形成する第1表皮と、
前記第1芯材の前記裏面に対して裏面を向けつつ前記第1芯材に重ねられている第2芯材と、
前記第2芯材よりも軟質であり、前記第2芯材の表面に重ねられ、その周縁部の少なくとも一部が前記第2芯材の前記裏面側に折り返されて前記第2芯材の周縁部を挟み込む断面U字状の第2リム部を形成する第2表皮と、
前記第1リム部、前記第1リム部に挟み込まれた前記第1芯材の周縁部、前記第2リム部、および、前記第2リム部に挟み込まれた前記第2芯材の周縁部を縫い合わせるステッチ部と、を有し、
前記第1リム部よりも中央側において、前記第1芯材の前記表面と前記第1表皮との間にはクッション材が配置され、前記クッション材の厚さは前記第1芯材の厚さよりも厚い、車両用内装部材。 - 前記第1リム部は前記第1芯材の前記周縁部における前記裏面に接着され、かつ、前記第2リム部は前記第2芯材の前記周縁部における前記裏面に接着されている、請求項1に記載の車両用内装部材。
- 前記第1リム部は前記第1芯材の前記周縁部を全周にわたって挟み込み、前記第2リム部は前記第2芯材の前記周縁部を全周にわたって挟み込む、請求項1または請求項2に記載の車両用内装部材。
- 前記基材面は曲面であり、前記第1芯材および前記第2芯材は前記基材面に沿った曲げ形状をなす、請求項1~請求項3の何れか一項に記載の車両用内装部材。
- 請求項4に記載の車両用内装部材を製造する方法であって、
曲げ形状の前記第1芯材に前記第1表皮を接着し、かつ、曲げ形状の前記第2芯材に前記第2表皮を接着する工程を有する、車両用内装部材の製造方法。
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