JP7248817B2 - 積層成形体及びその製造方法 - Google Patents
積層成形体及びその製造方法 Download PDFInfo
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- JP7248817B2 JP7248817B2 JP2021558364A JP2021558364A JP7248817B2 JP 7248817 B2 JP7248817 B2 JP 7248817B2 JP 2021558364 A JP2021558364 A JP 2021558364A JP 2021558364 A JP2021558364 A JP 2021558364A JP 7248817 B2 JP7248817 B2 JP 7248817B2
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- Japan
- Prior art keywords
- cushion layer
- laminate
- opening
- molded body
- skin
- 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.)
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Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
Description
図1は、実施例1のシートを示す斜視図である。以下、実施例1のシートの構成を説明する。
図2は、実施例1の積層成形体10を示す断面図である。以下、実施例1の積層成形体10の構成を説明する。
図3は、実施例1の裁断工程で裁断された第1クッション層11を示す平面図である。図4は、実施例1の基材取付工程を説明する断面図である。図5は、実施例1の断熱材載置工程を説明する断面図である。図6は、実施例1の断熱材載置工程で使用する断熱材を示す平面図である。図7は、実施例1の第1熱圧着工程を説明する断面図である。図8は、実施例1の剥離工程を説明する説明図である。図9は、実施例1の剥離工程で裁断部が剥離された第1積層体を示す平面図である。図10は、実施例1の表皮積層工程を説明する断面図である。図11は、実施例1の第2熱圧着工程を説明する断面図である。以下、実施例1の積層成形体10の製造方法を説明する。
図3に示すように、裁断工程では、第1開口部11c(図9参照)を形成するように矩形の板状の第1クッション層11を裁断して、複数のひし形状の本体部11aと、裁断部11bと、を形成する。
図4に示すように、基材積層工程では、裁断工程で裁断された第1クッション層11の下面に、接着シートとしての第1接着シート12Aを介して、基材13を配置して、第1積層体10Aを形成する。すなわち、本体部11aと裁断部11bの下面に、第1接着シート12Aを介して、基材13を配置して、第1積層体10Aを形成する。
図5に示すように、断熱材載置工程では、第1積層体10Aの裁断部11bの上面に、断熱材16を載置する。断熱材16は、例えば、表皮15と同じ厚さの同じ材料を3枚程度貼り合わせたものを使用することもできる。
図7に示すように、第1熱圧着工程では、断熱材16が取り付けられた第1積層体10Aを、金型50にセットして、熱圧着する。金型50は、上型51と下型52とから構成される。上型51は、ヒータ機能を有する。上型51及び下型52の分割面(パーティング面)は、略平坦に形成されている。第1熱圧着工程では、例えば、温度が120~140℃で、圧力0.1~0.8MPaで、5~40秒間程の熱圧着を行う。
図8に示すように、剥離工程では、第1熱圧着工程で熱圧着された第1積層体10Aから、断熱材16が取り付けられた裁断部11bを剥離する。この際、裁断部11bに隣接する第1接着シート12Aも剥離する。なお、裁断部11bに隣接する第1接着シート12Aは、剥離されずに基材13に残ってもよい。
図10に示すように、表皮積層工程では、裁断部11bが剥離された第1積層体10Aの上面に、接着シートとしての第2接着シート12Bを介して表皮15を配置して、第2積層体10Bを形成する。第2接着シート12Bは、加熱することで、溶解して接着力を有する、接着層12としての第2接着層12bを形成する。
図11に示すように、第2熱圧着工程では、第2積層体10Bを、金型50にセットして、熱圧着する。第2熱圧着工程では、例えば、温度が140~160℃で、圧力が0.5~1.2MPaで、10~40秒間程の熱圧着を行う。
以下、実施例1の積層成形体10の作用を説明する。実施例1の積層成形体10の製造方法は、開口部(第1開口部11c)を形成するようにクッション層(第1クッション層11)を裁断して裁断部11bを形成する裁断工程と、裁断工程で裁断されたクッション層(第1クッション層11)の下面に、加熱によって接着力を有する接着シート(第1接着シート12A)を介して、基材13を配置して、第1積層体10Aを形成する基材積層工程と、第1積層体10Aの裁断部11bに断熱材16を取り付ける断熱材載置工程と、断熱材16が取り付けられた第1積層体10Aを熱圧着する第1熱圧着工程と、第1熱圧着工程で熱圧着された第1積層体10Aから、裁断部11bを剥離して(第1開口部11c)を形成する剥離工程と、裁断部11bが剥離された第1積層体10Aの上面に、加熱によって接着力を有する接着シート(第2接着シート12B)を介して、表皮15を配置して、第2積層体10Bを形成する表皮積層工程と、第2積層体10Bを熱圧着して、表皮15を、開口部(第1開口部11c)において、開口部(第1開口部11c)を有するクッション層(第1クッション層11)の下層に配置される下層材(基材13)に接合する第2熱圧着工程と、を含む(図2~図11)。
図12は、実施例2の積層成形体の配列を示す断面図である。図13は、実施例2の積層成形体を示す断面図である。以下、実施例2の積層成形体の構成を説明する。なお、上記実施例で説明した内容と同一乃至均等な部分の説明については、同一用語又は同一の符号を用いて説明する。
以下、実施例2の積層成形体110の作用を説明する。実施例2の積層成形体110は、クッション層と、クッション層の上面に接合される表皮15と、クッション層の下面に接合される基材13と、を備え、クッション層は、第1クッション層11と、第1クッション層の下面に配置される第2クッション層111と、を備え、第1クッション層11は、第1開口部11cを備える(図3)。
図14は、実施例3の積層成形体の配列を概略的に示す断面図である。図15は、実施例3の積層成形体を概略的に示す断面図である。以下、実施例3の積層成形体の構成を説明する。なお、上記実施例で説明した内容と同一乃至均等な部分の説明については、同一用語又は同一の符号を用いて説明する。
以下、実施例3の積層成形体210の作用を説明する。実施例3の積層成形体210において、第2クッション層211は、第1開口部11cと同じ位置に、第1開口部11cの幅より小さい第2開口部211cを備える(図15)。
図16は、実施例4の積層成形体の配列を概略的に示す断面図である。図17は、実施例4の積層成形体を概略的に示す断面図である。以下、実施例4の積層成形体の構成を説明する。なお、上記実施例で説明した内容と同一乃至均等な部分の説明については、同一用語又は同一の符号を用いて説明する。
以下、実施例4の積層成形体310の作用を説明する。実施例4の積層成形体310は、第2クッション層311は、第1開口部11cと異なる位置に、第2開口部311cを備え、表皮15は、第1開口部11cにおいて、第2クッション層311に接合され、かつ、第1クッション層11は、第2開口部311cにおいて、基材13に接合される(図17)。
Claims (2)
- 開口部を形成するようにクッション層を裁断して裁断部を形成する裁断工程と、
前記裁断工程で裁断された前記クッション層の下面に、加熱によって接着力を有する接着シートを介して、基材を配置して、第1積層体を形成する基材積層工程と、
前記第1積層体の前記裁断部に断熱材を取り付ける断熱材載置工程と、
前記断熱材が取り付けられた前記第1積層体を熱圧着する第1熱圧着工程と、
前記第1熱圧着工程で熱圧着された前記第1積層体から、前記裁断部を剥離して前記開口部を形成する剥離工程と、
前記裁断部が剥離された前記第1積層体の上面に、加熱によって接着力を有する接着シートを介して、表皮を配置して、第2積層体を形成する表皮積層工程と、
前記第2積層体を熱圧着して、前記表皮を、前記開口部において、前記開口部を有する前記クッション層の下層に配置される下層材に接合する第2熱圧着工程と、を含む
ことを特徴とする、積層成形体の製造方法。 - 前記第2熱圧着工程では、分割面が平坦な金型を使用し、
前記開口部は、前記クッション層の厚さの70%以上の幅を有している
ことを特徴とする、請求項1に記載の積層成形体の製造方法。
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