JP3669486B2 - Cover member and manufacturing method thereof - Google Patents

Cover member and manufacturing method thereof Download PDF

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JP3669486B2
JP3669486B2 JP2001002798A JP2001002798A JP3669486B2 JP 3669486 B2 JP3669486 B2 JP 3669486B2 JP 2001002798 A JP2001002798 A JP 2001002798A JP 2001002798 A JP2001002798 A JP 2001002798A JP 3669486 B2 JP3669486 B2 JP 3669486B2
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core
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JP2002205480A (en
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莞二 田中
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Lihit Lab Inc
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Lihit Lab Inc
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Description

【０００１】
【発明の属する技術分野】
この発明は、表紙部材およびその製法に関し、特にたとえばリングファイル等の表紙として用いるに好適な表紙部材およびその製法に関する。
【０００２】
【従来の技術】
従来のファイルの表紙は、たとえば比較的厚いボール紙の周囲を前記ボール紙よりも広い面積を有するポリプロピレン製シートでそのボール紙の外周縁に沿って折り曲げボール紙の表面側より裏面側にむけて折り曲げ接着し、さらにボール紙の裏面側に見返し紙を貼着した、いわゆるくるみ貼り表紙と称するものがある。
【０００３】
【発明が解決しようとする課題】
ところが、前記いわゆるくるみ貼りと称する方法によって形成される表紙は、１枚のボール紙をもって表紙を構成するため、耐荷重性，耐摩耗性に乏しい。
【０００４】
それゆえに、この発明の主たる目的は、耐荷重性，耐摩耗性に優れ、外表面が美麗な表紙部材およびその製法を提供することである。
【０００５】
【課題を解決するための手段】
この発明の請求項１にかかる表紙部材は、表紙部よりも幅方向に延びる大きさを有する、折曲可能なボール紙からなる芯材と、前記芯材の上端縁および下端縁よりも外方に延びる大きさを有する、折曲可能なシートからなる表面材とを備え、芯材は、表紙部とほぼ同じ大きさを有する主部と、前記主部の両側縁より幅方向に外方に延びる前記主部とほぼ同じ大きさの副部とを有するものであり、前記表面材が前記芯材の一方主面に重ねられ、前記芯材の上端縁および下端縁よりも外方に延びた表面材の延長部が、前記芯材の上端縁および下端縁において折り曲げて芯材の他方主面に重ねられ、且つ、前記芯材の上端縁および下端縁と交差する主部と副部の境界線上において、前記芯材および表面材が、ともに、表面材の延長部が重ねられた芯材の他方主面側に折り曲げられるとともに、主部と副部とが重ねられた状態において、芯材の上端縁どおしおよび下端縁どおしがほぼ揃えられて接合され、主部と副部とが接合した部分において接着され、且つ、主部と副部との周縁に沿って主部と副部にまたがって芯材および表面材がともに縫合された、表紙部材である。
この発明の請求項２にかかる表紙部材は、表紙部の周縁に沿って、重ね合わされた芯材と表面材とは表面材の延長部とともに縫い合わされている、請求項１に記載の表紙部材である。
この発明の請求項３にかかる表紙部材は、表面材は、ポリプロピレン製シートからなる、請求項１または請求項２に記載の表紙部材である。
この発明の請求項４にかかる表紙部材は、表紙部よりも幅方向に延びる大きさを有する、折曲可能なボール紙からなる芯材と、前記芯材の上端縁および下端縁よりも外方に延びる大きさを有する、折曲可能なシートからなる表面材とを準備し、表紙部とほぼ同じ大きさを有する主部と、前記主部の両側縁より幅方向に外方に延びる前記主部とほぼ同じ大きさの副部とを有する、前記芯材の一方主面に前記表面材を重ね、且つ前記芯材の上端縁および下端縁よりも外方に延びた表面材の延長部を上端縁および下端縁において折り曲げて芯材の他方主面に重ねて表紙素材を形成し、前記表紙素材の上端縁および下端縁と交差する主部と副部の境界線上において、前記表紙素材を構成する芯材および表面材がともに、表面材の延長部が重ねられた芯材の他方主面側に表紙素材を折り曲げ、重ねられた表紙素材の上端縁どおしおよび下端縁どおしをほぼ揃えて接合し、表紙素材が重ねられた接合部分を接着し、且つ、表紙部の周縁に沿って重ね合わされた表紙素材を芯材および表面材とともに縫合する、表紙部材の製法である。
この発明の請求項５にかかる表紙部材は、表紙部の周縁に沿って、重ね合わされた芯材と表面材とを表面材の延長部とともに縫い合わす、請求項４に記載の表紙部材の製法である。
この発明の請求項６にかかる表紙部材は、表面材は、ポリプロピレン製シートからなる、請求項４または請求項５に記載の表紙部材の製法である。
【０００６】
この発明の上述の目的，その他の目的，特徴および利点は、図面を参照して行う以下の発明の実施の形態の詳細な説明から一層明らかとなろう。
【０００７】
【発明の実施の形態】
図１は、この発明の一実施の形態である表紙部材の斜視図解図である。
図２は、図１の線Ａ−Ａにおける断面図である。
この表紙部材１０は、表表紙部１２ａと裏表紙部１２ｂとからなる表紙部１２と、表表紙部１２ａと背表紙部１４との間において表表紙部１２ａと裏表紙部１２ｂとを連結する背表紙部１４とを備え、背表紙部１４の内側表面には公知のリングファイル用リング金具１６が固定される。
【０００８】
表紙部材１０は、表紙部１２よりも幅方向にさらに延びる大きさを有する、折曲可能なシート、たとえばボール紙からなる芯材２０と前記芯材２０の上端縁２２ａおよび下端縁２２ｂよりも外方に延びる大きさを有する、折曲可能なシート、たとえばポリプロピレン製シートからなる表面材３０とを備える。
【０００９】
芯材２０は、表表紙部１２ａおよび裏表紙部１２ｂとほぼ同じ大きさを有する主部２４と前記主部２４よりも幅方向に延びる副部２８とを有し、芯材２０の主部２４と芯材２０の副部２８とはほぼ同じ大きさを有する。
そして、芯材２０は、表紙部１２および背表紙部１４とほぼ同じ大きさを有する主部２４と前記主部２４の両側縁より幅方向に外方に延びる副部２８とを有するものであって、主部２４は、表紙側主部２４ａと背表紙側主部２４ｂとにわかれ、表紙側主部２４ａは表表紙側主部２６ａと裏表紙側主部２６ｂとに区分され、副部２８は、前記主部２４の表紙側主部２４ａ部分の表表紙側主部２６ａとほぼ同じ大きさを有する表表紙側副部２８ａと裏表紙側主部２６ｂとほぼ同じ大きさを有する裏表紙側副部２８ｂとからなる。
【００１０】
前記表面材３０は、前記芯材２０の一方主面（表面）に重ねられ、接着されている。
そして、前記芯材２０の上端縁２２ａおよび下端縁２２ｂよりも外方に延びた表面材３０の延長部３２ａおよび３２ｂが芯材２０の上端縁２２ａおよび下端縁２２ｂ近傍において折り曲げられて芯材２０の他方主面（裏面）に重ねられ、接着されている。
【００１１】
前記芯材２０の上端縁２２ａおよび下端縁２２ｂと交差する仮想線Ｘ−Ｘ上において、すなわち、芯材２０の主部２４と副部２８との境界線上において、前記芯材２０および表面材３０がともに、表面材３０の延長部３２ａおよび３２ｂが重ねられた芯材２０の他方主面（裏面）側に折り曲げられ、表面材３０の延長部３２ａおよび３２ｂが重ねられた芯材２０の上端縁２２ａどおしおよび下端縁２２ｂどおしがほぼ揃えられて、芯材２０の主部２４および副部２８が対向されている。
そして、芯材２０の主部２４および副部２８が対向された部分において、補強シート３４が介装され対向された芯材２０の一方主面（裏面）および表面材３０の延長部３２ａおよび３２ｂが芯材２０の主部２４および副部２８のいずれの裏面側においても対向されて、補強シート３４とともに接着される。
また、重ね合わされた芯材２０と表面材３０とは、表紙部１２の周縁に沿って、延長部３２ａおよび３２ｂとともに縫い合わされている。
なお、補強シート３４を介装しなくてもよい。
【００１２】
次に、表紙部材１０の製法について説明する。
図３ないし図６は、表紙部材１０の製法を説明する斜視図解図である。
表紙部１２を構成する表表紙部１２ａおよび裏表紙部１２ｂよりも幅方向に延びる大きさを有するシート、すなわち表表紙部１２ａの右側方幅方向に延びる、また裏表紙部１２ｂの左側方幅方向に延びる大きさを有する折曲可能なシート、たとえば比較的厚さを有するダンボール紙からなる芯材２０を準備する。
芯材２０は、表紙部１２を構成する表表紙部１２ａおよび裏表紙部１２ｂとほぼ同じ大きさを有する主部２４と前記主部２４よりも幅方向に延びるもので、前記主部２４とほぼ同じ大きさを有する副部２８とを備える。
そして、芯材２０は、表紙部１２および背表紙部１４とほぼ同じ大きさを有する主部２４と前記主部２４の両側縁より幅方向に外方に延びる副部２８とを有するものであって、主部２４は、表紙側主部２４ａと背表紙側主部２４ｂとにわかれ、表紙側主部２４ａは表表紙側主部２６ａと裏表紙側主部２６ｂとに区分され、副部２８は、前記主部２４の表紙側主部２４ａ部分の表表紙側主部２６ａとほぼ同じ大きさを有する表表紙側副部２８ａと裏表紙側主部２６ｂとほぼ同じ大きさを有する裏表紙側副部２８ｂとからなる。
【００１３】
一方、前記芯材２０の上端縁２２ａおよび下端縁２２ｂよりも外方、すなわち、上下方向に芯材２０の幅よりも若干長い幅を有して延びる大きさを有する、折曲可能なシート、たとえばポリプロピレン製シートからなる表面材３０を準備する。
【００１４】
そして、前記表面材３０を前記芯材２０の一方主面に重ねる。すなわち、前記芯材２０の上端縁２２ａおよび下端縁２２ｂよりも外方に延びた表面材３０の延長部３２ａおよび３２ｂがほぼ同一の長さをもって芯材２０の上端縁２２ａおよび下端縁２２ｂよりも外方に延びた状態において載置し、接着する。
そして、芯材２０の上端縁２２ａおよび下端縁２２ｂよりも外方に延びた表面材３０の延長部３２ａおよび３２ｂを芯材２０の上端縁２２ａおよび下端縁２２ｂ近傍において芯材２０の他方主面（裏面）側に折り曲げ、芯材２０の他方主面（裏面）に重ねて接着して、表紙素材４０を形成する。
表紙素材４０は、表紙部１２および背表紙部１４とほぼ同じ大きさを有する主部４４と前記主部４４の両側縁より幅方向に外方に延びる副部４８とを有するものであって、副部４８は、主部４４の表紙側主部４４ａ部分の表表紙側主部４６ａとほぼ同じ大きさを有する表表紙側副部４８ａと裏表紙側主部４６ｂとほぼ同じ大きさを有する裏表紙側副部４８ｂとからなる。
【００１５】
芯材２０の主部２４と副部２８との境界線上、すなわち、表紙素材４０の上端縁４２ａおよび下端縁４２ｂと交差する仮想線Ｘ−Ｘ線上において、芯材２０の折り曲げを容易にするために、表面から裏面に向けて芯材２０を凹ませるヒンジ加工を施す。
また、表紙部１２と背表紙部１４との境界線上、すなわち、表紙素材４０の上端縁４２ａおよび下端縁４２ｂと交差する仮想線Ｙ−Ｙ線上において、芯材２０の折り曲げを容易にするために、表面から裏面に向けて芯材２０を凹ませるヒンジ加工を施す。
【００１６】
前記表紙素材４０の上端縁４２ａおよび下端縁４２ｂと交差する仮想線Ｘ−Ｘ線上、すなわち芯材２０の主部２４と芯材２０の副部２８の境界線上において、前記表紙素材４０を構成する芯材２０および表面材３０をともに、表面材３０の延長部３２ａおよび３２ｂが重ねられた芯材２０の他方主面（裏面）側に折り曲げられ、重ねられた表紙素材４０の上端縁４２ａおよび下端縁４２ｂどおしをほぼ揃えて対向させる。
【００１７】
そして、表紙素材４０が、芯材２０の主部２４および芯材２０の副部２８に対応する主部４４および副部４８の境界線上において折り曲げられ、対向する主部４４と副部４８との間に補強シート３４を介装し、重ね合わされた接合部分を適宜接着剤で接着する。
そして、表紙素材４０の主部４４および副部４８を重ね合わせてなる表紙部１２、すなわち表表紙部１２ａおよび裏表紙部１２ｂのそれぞれの周縁に沿って、重ね合わされた表紙素材４０が、芯材２０と表面材３０（重ね合わされた延長部３２ａおよび３２ｂを含む）とがともに適宜な糸をもって縫い合わされる。
【００１８】
その後、適宜背表紙部１４にリング金具１６を取り付ける。
【００１９】
【発明の効果】
この発明によれば、表面材が芯材の一方主面に重ねられ、芯材の上端縁および下端縁よりも外方に延びた表面材の延長部が上端縁および下端縁において折り曲げて芯材の他方主面に重ねられるとともに、芯材の上端縁および下端縁と交差する線上において、前記芯材および表面材がともに、表面材の延長部が重ねられた芯材の他方主面側に折り曲げられ、重ねられた芯材の上端縁どおしおよび下端縁どおしがほぼ揃えられて、接着され且つ縫合されて表紙を構成するので、表紙の外周縁のすべてにおいて表面材で芯材が覆われ、それゆえに芯材が摩耗することなく耐摩耗性を有し、表紙を構成する表表紙および裏表紙のいずれも芯材が二重に備えられるので、耐荷重性も増し、耐久性を有する表紙部材となる。
この発明にかかる表紙部材の製法によれば、表面材を芯材の一方主面に重ね、芯材の上端縁および下端縁よりも外方に延びた表面材の延長部を上端縁および下端縁において折り曲げて芯材の他方主面に重ねて表紙素材を形成し、前記表紙素材の上端縁および下端縁と交差する線上において、前記表紙素材を構成する芯材および表面材がともに、表面材の延長部を重ねられた芯材の他方主面側に表紙素材が折り曲げられ、重ねられた表紙素材の上端縁どおしおよび下端縁どおしがほぼ揃えて、接着し且つ縫合して製造することができるので、表紙の外周縁のすべてにおいて表面材が存在し、芯材を棄損することなく耐摩耗性に優れ、且つ表紙部には芯材が二重に存在する表紙部材を、工程数をそれほど増加させることなく、比較的容易に表紙部材を製造することができる。
【図面の簡単な説明】
【図１】この発明の一実施の形態である表紙部材の斜視図解図である。
【図２】図１の線Ａ−Ａにおける断面図である。
【図３】表紙部材の製法を説明する斜視図解図である。
【図４】表紙部材の製法を説明する斜視図解図である。
【図５】表紙部材の製法を説明する斜視図解図である。
【図６】表紙部材の製法を説明する斜視図解図である。
【符号の説明】
１０ 表紙部材
１２ａ 表表紙部
１２ｂ 裏表紙部
１２ 表紙部
１４ 背表紙部
１６ リング金具
２０ 芯材
２２ａ 芯材の上端縁
２２ｂ 芯材の下端縁
２４ 主部
２８ 副部
２４ａ 表紙側主部
２４ｂ 背表紙側主部
２６ａ 表表紙側主部
２６ｂ 裏表紙側主部
２８ａ 表表紙側副部
２８ｂ 裏表紙側副部
３０ 表面材
３２ａ，３２ｂ 延長部
３４ 補強シート
４０ 表紙素材
４２ａ 表紙素材の上端縁
４２ｂ 表紙素材の下端縁
４４ 主部
４８ 副部
４４ａ 表紙側主部
４４ｂ 背表紙側主部
４６ａ 表表紙側主部
４６ｂ 裏表紙側主部
４８ａ 表表紙側副部
４８ｂ 裏表紙側副部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cover member and a manufacturing method thereof, and more particularly to a cover member suitable for use as a cover of a ring file or the like and a manufacturing method thereof.
[0002]
[Prior art]
The cover of a conventional file is, for example, a polypropylene sheet having a larger area than the cardboard around a relatively thick cardboard, and is folded along the outer periphery of the cardboard from the front side to the back side of the cardboard. There is a so-called “case-attached cover” in which a folded paper is bonded to the back side of the cardboard.
[0003]
[Problems to be solved by the invention]
However, the cover formed by the so-called “case pasting” method is composed of a single cardboard, so that the load resistance and wear resistance are poor.
[0004]
Therefore, a main object of the present invention is to provide a cover member having excellent load resistance and wear resistance and a beautiful outer surface, and a method for producing the same.
[0005]
[Means for Solving the Problems]
A cover member according to claim 1 of the present invention includes a core material made of a foldable cardboard having a size extending in the width direction from the cover portion, and outward from the upper edge and the lower edge of the core material. The core material has a main portion having a size substantially the same as the cover portion, and outward in the width direction from both side edges of the main portion. It has a sub-portion that is substantially the same size as the main portion that extends, and the surface material is superimposed on one main surface of the core material and extends outward from the upper edge and the lower edge of the core material. The extension of the surface material is bent at the upper end edge and the lower end edge of the core material and overlapped with the other main surface of the core material , and the boundary between the main part and the sub part intersecting the upper end edge and the lower end edge of the core material On the line, both the core material and the surface material are cores on which the extension portions of the surface material are stacked. The other main surface bent side Rutotomoni, in the main portion and a state in which the auxiliary portion are stacked, the upper end Endoshi and lower ends of the core member Endoshi is substantially collated and joined, the main portion and the secondary A cover member in which the core material and the surface material are stitched together across the main part and the sub part along the peripheral edge between the main part and the sub part .
The cover member according to claim 2 of the present invention is the cover member according to claim 1 , wherein the overlapped core material and the surface material are sewn together with the extended portion of the surface material along the periphery of the cover portion. is there.
The cover member according to claim 3 of the present invention is the cover member according to claim 1 or 2, wherein the surface material is a polypropylene sheet .
According to a fourth aspect of the present invention, there is provided a cover member having a size extending in the width direction from the cover portion and made of a foldable cardboard , and more outward than the upper edge and the lower edge of the core material. A surface material made of a bendable sheet having a size extending to the main part, a main part having substantially the same size as the cover part, and the main part extending outward in the width direction from both side edges of the main part. and a substantially sub-component of the same size as the parts, the extension of the front Symbol said surface material superimposed on one major surface of the core material, and the surface material extending outward from the upper edge and lower edge of the core material Is folded at the upper edge and the lower edge to overlap the other main surface of the core material to form a cover material, and on the boundary line of the main part and the sub part intersecting the upper edge and the lower edge of the cover material, the cover material is A core in which the core material and the surface material are both stacked with the extension of the surface material The other main surface side folding the cover material, the superimposed cover material substantially aligned and bonded upper Endoshi and lower end Endoshi of bonding the bonding portion of the cover material are stacked, and, the cover This is a method for manufacturing a cover member, in which a cover material overlapped along the periphery of the part is stitched together with a core material and a surface material .
The cover member according to claim 5 of the present invention is the cover member manufacturing method according to claim 4 , wherein the overlapped core material and the surface material are sewn together with the extended portion of the surface material along the periphery of the cover portion. is there.
The cover member according to claim 6 of the present invention is the method of manufacturing a cover member according to claim 4 or 5, wherein the surface material is a polypropylene sheet .
[0006]
The above object, other objects, features, and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention with reference to the drawings.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a cover member according to an embodiment of the present invention.
2 is a cross-sectional view taken along line AA in FIG.
The front cover member 10 includes a front cover portion 12 composed of a front cover portion 12a and a back cover portion 12b, and a back connecting the front cover portion 12a and the back cover portion 12b between the front cover portion 12a and the back cover portion 14b. The ring cover 16 is provided, and a known ring file ring fitting 16 is fixed to the inner surface of the spine cover 14.
[0008]
The cover member 10 has a size that extends further in the width direction than the cover portion 12 and can be bent, for example, a core member 20 made of cardboard, and an outer side of the upper edge 22a and the lower edge 22b of the core member 20. And a bendable sheet, for example, a surface material 30 made of a polypropylene sheet.
[0009]
The core member 20 includes a main portion 24 having substantially the same size as the front cover portion 12a and the back cover portion 12b, and a sub portion 28 extending in the width direction from the main portion 24. And the sub-part 28 of the core member 20 have substantially the same size.
The core member 20 includes a main portion 24 having substantially the same size as the cover portion 12 and the spine portion 14 and sub portions 28 extending outward in the width direction from both side edges of the main portion 24. The main part 24 is divided into a front cover side main part 24a and a back cover side main part 24b. The front cover side main part 24a is divided into a front cover side main part 26a and a back cover side main part 26b. Is a front cover side sub-portion 28a having the same size as the front cover side main portion 26a of the front cover side main portion 24a of the main portion 24, and the back cover side having substantially the same size as the back cover side main portion 26b. It consists of the sub part 28b.
[0010]
The surface material 30 is overlapped and bonded to one main surface (surface) of the core material 20.
Then, the extension portions 32a and 32b of the surface material 30 extending outward from the upper end edge 22a and the lower end edge 22b of the core material 20 are bent in the vicinity of the upper end edge 22a and the lower end edge 22b of the core material 20 to be core material 20. The other main surface (rear surface) is overlapped and bonded.
[0011]
On the imaginary line XX intersecting the upper end edge 22a and the lower end edge 22b of the core material 20, that is, on the boundary line between the main portion 24 and the sub portion 28 of the core material 20, the core material 20 and the surface material 30. Are both bent to the other main surface (back surface) side of the core material 20 on which the extension portions 32a and 32b of the surface material 30 are overlapped, and the upper edge of the core material 20 on which the extension portions 32a and 32b of the surface material 30 are overlapped. The main portions 24 and the sub-portions 28 of the core member 20 are opposed to each other with 22a and the lower end edges 22b being substantially aligned.
And in the part where the main part 24 and the sub-part 28 of the core material 20 are opposed, the reinforcing sheet 34 is interposed and the one main surface (back surface) of the core material 20 and the extension parts 32a and 32b of the surface material 30 are opposed to each other. Are opposed to each other on the back side of the main part 24 and the sub part 28 of the core member 20 and bonded together with the reinforcing sheet 34.
The overlapped core member 20 and surface member 30 are stitched together with the extension portions 32 a and 32 b along the periphery of the cover portion 12.
Name your, it may not be interposed a reinforcement sheet 34.
[0012]
Next, a method for manufacturing the cover member 10 will be described.
FIGS. 3 to 6 are perspective views illustrating a method for manufacturing the cover member 10.
A sheet having a size extending in the width direction than the front cover portion 12a and the back cover portion 12b constituting the cover portion 12, that is, extending in the right width direction of the front cover portion 12a, and in the left width direction of the back cover portion 12b A core 20 made of a bendable sheet having a size extending in the direction of, for example, a corrugated cardboard having a relatively large thickness is prepared.
The core member 20 extends in the width direction from the main part 24 and the main part 24 having substantially the same size as the front cover part 12a and the back cover part 12b constituting the cover part 12, and substantially the same as the main part 24. And a sub-part 28 having the same size.
The core member 20 includes a main portion 24 having substantially the same size as the cover portion 12 and the spine portion 14 and sub portions 28 extending outward in the width direction from both side edges of the main portion 24. The main part 24 is divided into a front cover side main part 24a and a back cover side main part 24b. The front cover side main part 24a is divided into a front cover side main part 26a and a back cover side main part 26b. Is a front cover side sub-portion 28a having the same size as the front cover side main portion 26a of the front cover side main portion 24a of the main portion 24, and the back cover side having substantially the same size as the back cover side main portion 26b. It consists of the sub part 28b.
[0013]
On the other hand, a bendable sheet having a size extending outwardly from the upper end edge 22a and the lower end edge 22b of the core member 20, that is, a width slightly longer than the width of the core member 20 in the vertical direction, For example, a surface material 30 made of a polypropylene sheet is prepared.
[0014]
Then, the surface material 30 is overlaid on one main surface of the core material 20. That is, the extending portions 32a and 32b of the surface material 30 extending outward from the upper end edge 22a and the lower end edge 22b of the core member 20 have substantially the same length than the upper end edge 22a and the lower end edge 22b of the core member 20. It is placed and bonded in a state extending outward.
The extension portions 32a and 32b of the surface material 30 extending outwardly from the upper end edge 22a and the lower end edge 22b of the core material 20 are connected to the other main surface of the core material 20 in the vicinity of the upper end edge 22a and the lower end edge 22b. The cover material 40 is formed by bending to the (back surface) side and overlapping and bonding to the other main surface (back surface) of the core member 20.
The cover material 40 has a main part 44 having substantially the same size as the cover part 12 and the back cover part 14 and a sub part 48 extending outward in the width direction from both side edges of the main part 44, The sub-portion 48 has substantially the same size as the front cover side sub portion 48a and the rear cover side main portion 46b having the same size as the front cover side main portion 46a of the front cover side main portion 44a of the main portion 44. It consists of a cover side sub part 48b.
[0015]
In order to facilitate the bending of the core material 20 on the boundary line between the main portion 24 and the sub portion 28 of the core material 20, that is, on the imaginary line XX line intersecting the upper edge 42 a and the lower edge 42 b of the cover material 40. In addition, the hinge processing for denting the core member 20 from the front surface to the back surface is performed.
Further, in order to facilitate the bending of the core member 20 on the boundary line between the cover part 12 and the spine part 14, that is, on the imaginary line YY line intersecting the upper edge 42a and the lower edge 42b of the cover material 40. Then, a hinge process for denting the core material 20 from the front surface to the back surface is performed.
[0016]
The cover material 40 is configured on an imaginary line XX that intersects the upper edge 42a and the lower edge 42b of the cover material 40, that is, on the boundary line between the main portion 24 of the core material 20 and the sub-portion 28 of the core material 20. Both the core material 20 and the surface material 30 are folded to the other main surface (back surface) side of the core material 20 on which the extension portions 32a and 32b of the surface material 30 are overlapped, and the upper end edge 42a and the lower end of the overlapped cover material 40 The edges 42b are made to face each other with their lines aligned substantially.
[0017]
Then, the cover material 40 is bent on the boundary line between the main part 44 and the sub part 48 corresponding to the main part 24 of the core material 20 and the sub part 28 of the core material 20, and the main part 44 and the sub part 48 facing each other. A reinforcing sheet 34 is interposed therebetween, and the overlapped joining portion is appropriately bonded with an adhesive.
Then, the cover material 40 overlapped along the peripheral edges of the cover portion 12 formed by superimposing the main portion 44 and the sub portion 48 of the cover material 40, that is, the front cover portion 12a and the back cover portion 12b, is a core material. 20 and the surface material 30 (including the overlaid extensions 32a and 32b) are sewn together with an appropriate thread.
[0018]
Thereafter, the ring metal fitting 16 is attached to the spine portion 14 as appropriate.
[0019]
【The invention's effect】
According to the present invention, the surface material is overlapped on one main surface of the core material, and the extended portion of the surface material extending outward from the upper end edge and the lower end edge of the core material is bent at the upper end edge and the lower end edge, thereby the core material. The core material and the surface material are both folded on the other main surface side of the core material on which the extension of the surface material is superimposed on the line intersecting the upper edge and the lower edge of the core material. Since the upper and lower edges of the cores are substantially aligned , bonded and stitched together to form the cover, the core material is covered with the surface material at all the outer peripheral edges of the cover. It is covered, therefore it has wear resistance without abrasion of the core material, and both the front cover and back cover that make up the cover are equipped with double core material, increasing load resistance and durability It becomes the cover member which has.
According to the method for manufacturing a cover member according to the present invention, the surface material is overlapped on one main surface of the core material, and the extended portions of the surface material extending outward from the upper edge and the lower edge of the core material are the upper edge and the lower edge. The cover material is folded and overlapped with the other main surface of the core material, and the core material and the surface material constituting the cover material are both on the surface intersecting the upper edge and the lower edge of the cover material. The cover material is folded on the other main surface side of the core material overlaid with the extension, and the upper cover edge and the lower edge of the overlapped cover material are substantially aligned , and bonded and stitched. Since the surface material is present on all the outer peripheral edges of the cover, the cover member is excellent in wear resistance without losing the core material, and the core material is doubled in the cover part. The cover part is relatively easy without increasing the It can be produced.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a cover member according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a perspective view illustrating a method for manufacturing a cover member.
FIG. 4 is a perspective view illustrating a method for manufacturing a cover member.
FIG. 5 is a perspective view illustrating a method for manufacturing a cover member.
FIG. 6 is a perspective view illustrating a method for manufacturing a cover member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Front cover member 12a Front cover part 12b Back cover part 12 Cover part 14 Back cover part 16 Ring metal fitting 20 Core material 22a Core material upper edge 22b Core material lower edge 24 Main part 28 Sub part 24a Front cover side main part 24b Back cover Side cover 26a Front cover side main part 26b Back cover side main part 28a Front cover side sub part 28b Back cover side sub part 30 Surface material 32a, 32b Extension part 34 Reinforcement sheet 40 Cover material 42a Top edge 42b of cover material Lower end edge 44 main part 48 sub part 44a cover side main part 44b back cover side main part 46a front cover side main part 46b back cover side main part 48a front cover side sub part 48b back cover side sub part

Claims (6)

表紙部よりも幅方向に延びる大きさを有する、折曲可能なボール紙からなる芯材と、
前記芯材の上端縁および下端縁よりも外方に延びる大きさを有する、折曲可能なシートからなる表面材とを備え、
芯材は、表紙部とほぼ同じ大きさを有する主部と、前記主部の両側縁より幅方向に外方に延びる前記主部とほぼ同じ大きさの副部とを有するものであり、
前記表面材が前記芯材の一方主面に重ねられ、前記芯材の上端縁および下端縁よりも外方に延びた表面材の延長部が、前記芯材の上端縁および下端縁において折り曲げて芯材の他方主面に重ねられ、且つ、前記芯材の上端縁および下端縁と交差する主部と副部の境界線上において、前記芯材および表面材が、ともに、表面材の延長部が重ねられた芯材の他方主面側に折り曲げられるとともに、主部と副部とが重ねられた状態において、芯材の上端縁どおしおよび下端縁どおしがほぼ揃えられて接合され、主部と副部とが接合した部分において接着され、且つ、主部と副部との周縁に沿って主部と副部にまたがって芯材および表面材がともに縫合された、表紙部材。A core made of a foldable cardboard having a size extending in the width direction from the cover portion; and
A surface material made of a bendable sheet having a size extending outward from the upper end edge and the lower end edge of the core material;
The core material has a main portion having substantially the same size as the cover portion, and a sub-portion having substantially the same size as the main portion extending outward in the width direction from both side edges of the main portion,
The surface material is overlapped on one main surface of the core material, and the extended portion of the surface material extending outward from the upper end edge and the lower end edge of the core material is bent at the upper end edge and the lower end edge of the core material. superimposed on the other major surface of the core material, and, in the main portion and the boundary line of the secondary portion which intersects the upper edge and lower edge of the core material, the core material and surface material are both extensions of the surface material bent on the other main surface of the superimposed core Rutotomoni, in the main portion and a state in which the auxiliary portion are stacked, the upper end Endoshi and lower ends of the core member Endoshi is substantially collated and joined A cover member which is bonded at a portion where the main portion and the sub portion are joined, and the core material and the surface material are stitched together across the main portion and the sub portion along the periphery of the main portion and the sub portion . 表紙部の周縁に沿って、重ね合わされた芯材と表面材とは表面材の延長部とともに縫い合わされている、請求項１に記載の表紙部材。The cover member according to claim 1, wherein the core material and the surface material that are overlapped are sewn together with an extension portion of the surface material along the periphery of the cover portion . 表面材は、ポリプロピレン製シートからなる、請求項１または請求項２に記載の表紙部材。The cover member according to claim 1 or 2, wherein the surface material is made of a polypropylene sheet . 表紙部よりも幅方向に延びる大きさを有する、折曲可能なボール紙からなる芯材と、前記芯材の上端縁および下端縁よりも外方に延びる大きさを有する、折曲可能なシートからなる表面材とを準備し、
表紙部とほぼ同じ大きさを有する主部と、前記主部の両側縁より幅方向に外方に延びる前記主部とほぼ同じ大きさの副部とを有する、
前記芯材の一方主面に前記表面材を重ね、且つ前記芯材の上端縁および下端縁よりも外方に延びた表面材の延長部を上端縁および下端縁において折り曲げて芯材の他方主面に重ねて表紙素材を形成し、
前記表紙素材の上端縁および下端縁と交差する主部と副部の境界線上において、前記表紙素材を構成する芯材および表面材がともに、表面材の延長部が重ねられた芯材の他方主面側に表紙素材を折り曲げ、重ねられた表紙素材の上端縁どおしおよび下端縁どおしをほぼ揃えて接合し、表紙素材が重ねられた接合部分を接着し、且つ、表紙部の周縁に沿って重ね合わされた表紙素材を芯材および表面材とともに縫合する、表紙部材の製法。A core material made of a foldable cardboard having a size extending in the width direction from the cover portion, and a bendable sheet having a size extending outward from the upper end edge and the lower end edge of the core material A surface material made of
A main portion having substantially the same size as the cover portion, and a sub-portion having substantially the same size as the main portion extending outward in the width direction from both side edges of the main portion.
While superimposing the surface material on the main surface of the front SL core, and the other core member is bent at the upper edge and lower edge of the extension of the surface material also extending outward from the upper edge and lower edge of the core material A cover material is formed over the main surface,
On the boundary line between the main part and the sub part intersecting the upper edge and the lower edge of the cover material, both the core material and the surface material constituting the cover material and the other main part of the core material in which the extension portions of the surface material are overlapped folding the cover material on the side, superimposed cover material substantially aligned and bonded upper Endoshi and lower end Endoshi of bonding the bonding portion of the cover material are stacked, and a peripheral cover portion A method for producing a cover member, in which a cover material superposed along a line is stitched together with a core material and a surface material . 表紙部の周縁に沿って、重ね合わされた芯材と表面材とを表面材の延長部とともに縫い合わす、請求項４に記載の表紙部材の製法。The manufacturing method of the cover member of Claim 4 which stitches together the overlapped core material and surface material with the extension part of surface material along the periphery of a cover portion . 表面材は、ポリプロピレン製シートからなる、請求項４または請求項５に記載の表紙部材の製法。The method for manufacturing a cover member according to claim 4 or 5, wherein the surface material comprises a polypropylene sheet .
JP2001002798A 2001-01-10 2001-01-10 Cover member and manufacturing method thereof Expired - Lifetime JP3669486B2 (en)

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