JP4744683B2

JP4744683B2 - Method and apparatus for packing elastic material

Info

Publication number: JP4744683B2
Application number: JP2000292695A
Authority: JP
Inventors: 武則日下部; 武吉村
Original assignee: Inoac Corp
Current assignee: Inoac Corp
Priority date: 2000-09-26
Filing date: 2000-09-26
Publication date: 2011-08-10
Anticipated expiration: 2020-09-26
Also published as: JP2002104312A

Description

【０００１】
【発明の属する技術分野】
この発明は、軟質ウレタンフォーム等の弾性材を、渦巻き状に巻いた状態で固定する梱包方法及び梱包装置に関する。
【０００２】
【従来の技術】
従来、軟質ウレタンフォームや繊維製品等の弾性材は、保管、輸送及び販売において、そのままの形態で取り扱うには、広いスペースを必要とするため、いろいろな梱包が施されてきた。
【０００３】
例えば、通気性の無い袋に弾性材をそのままの形で入れ、袋中の空気を抜いて真空にすることにより、弾性材そのままの形よりも容積を小さくしたりした。また、弾性材を小さく裁断した後に、圧縮をするなどして容積を小さくして梱包する方法等が一般的に行われていた。
【０００４】
しかし、前記袋を真空にする梱包においては、保管、輸送及び販売等の取り扱い中における多少の袋の傷により袋中の真空度が落ち、該弾性材の弾力性により製品が復元してしまう虞があった。しかも、輸送中に製品が復元すると、製品が輸送車内に充満して取り出し難くなり、また倉庫や家庭の押入等で保管している最中に製品が復元すると、製品が倉庫や押入等に充満して取り出しにくくなるという不具合が発生する。
【０００５】
また、前記小さく裁断してからの圧縮梱包は、マットレス等のように小さく裁断できない製品、すなわち大きなまま扱いたい製品について、採用することができなかった。
【０００６】
【発明が解決しようとする課題】
そこで、この発明は前記の点に鑑みなされたもので、軟質ウレタンフォーム等の弾性材を保管、輸送、販売等する際における梱包において、弾性材を小さく裁断すること無く、しかも外周フィルムの傷等によっても弾性材が復元する虞がなく、従来より安定した形で取り扱えることが可能な梱包方法及びその梱包装置を提供するものである。
【０００７】
【課題を解決するための手段】
請求項１の発明は、回転中心が三角形の頂点を構成するように第１送りローラ、第２送りローラ及び巻き込みローラからなる３つのローラを略平行に配置し、前記第１送りローラと巻き込みローラ間に弾性材挿入隙間を設けるとともに３つのローラで包囲される巻き込み空間を設け、前記弾性材挿入隙間から弾性材を巻き込み空間に供給して３つのローラで挟み、前記第１及び第２送りローラについては弾性材の供給方向に合わせた回転方向に回転させ、前記第１及び第２送りローラとは弾性材に対して反対側に位置する前記巻き込みローラについては弾性材の供給方向とは反対の回転方向に回転させることにより、前記巻き込み空間で弾性材を先端側から順次巻き込みローラ側へ反転させて渦巻き状に巻き取り、前記巻き取り途中において既に巻き終わった部分の弾性材外周面とこれから巻く部分との間に自己粘着性フィルムの一端側を挟み、前記自己粘着性フィルムと共に弾性材の残りの部分を端部まで巻き取り、前記弾性材の巻き取り後も弾性材の最外周面に少なくとも１周自己粘着性フィルムを巻き付けて自己粘着性フィルム同士を重ね、自己粘着性で固定することを特徴とする弾性材の梱包方法に係る。
【０００８】
請求項２の発明は、回転中心が三角形の頂点を構成するように第１送りローラ、第２送りローラ及び巻き込みローラからなる３つのローラを略平行に配置し、前記第１送りローラと巻き込みローラ間に弾性材挿入隙間を設けるとともに３つのローラで包囲される巻き込み空間を設け、前記第１送りローラには第２送りローラとは反対側に配置した第１補助ローラとの間に供給ベルトを張設し、前記巻き込みローラには前記供給ベルトと対向する巻き込みベルトを巻き込み補助ローラとの間に張設し、前記両ベルト間隔を両補助ローラ側から弾性材挿入隙間側に向けて小とし、前記供給ベルト上に載置した弾性材を第１送りローラ及び供給ベルトの回転により弾性材挿入隙間側へ供給するとともに、前記弾性材の上方に位置する巻き込みローラ及び巻き込みベルトを弾性材の供給方向とは反対方向へ回転させ、前記弾性材の先端が上面側で弾性材巻き込みベルトと接触した際に前記巻き込みベルトの回転により弾性材の先端を巻き込みベルト側へ反転させて巻き込みベルトと供給ベルト間で折り曲げて挟み、前記弾性材先端の反転折り曲げ後に巻き込みローラ及び巻き込みベルトの回転をそれまでとは反対の弾性材供給方向に回転させて弾性材をさらに弾性材挿入隙間側へ供給し、該弾性材挿入隙間から弾性材先端を巻き込み空間に供給して前記弾性材先端を前記巻き込みローラと前記弾性材の供給方向に合わせて回転する第１及び第２送りローラとで挟み、次いで前記巻き込みローラを弾性材供給方向とは反対方向に回転させ、前記３つのローラの回転により前記巻き込み空間の弾性材を巻き込みローラ側へ反転させて渦巻き状に巻き取り、前記巻き取り途中において既に巻き終わった部分の弾性材外周面とこれから巻く部分との間に自己粘着性フィルムの一端側を挟み、前記自己粘着性フィルムと共に弾性材の残りの部分を端部まで巻き取り、前記弾性材の巻き取り後も弾性材の最外周面に少なくとも１周自己粘着性フィルムを巻き付けて自己粘着性フィルム同士を重ね、自己粘着性で固定することを特徴とする弾性材の梱包方法に係る。
【０００９】
請求項３の発明は、請求項１又は２において、弾性材の巻き終わり近くで自己粘着性フィルムの一端側を弾性材間に挟むことを特徴とする。
【００１０】
請求項４の発明は、回転中心が三角形の頂点を構成するように第１送りローラ、第２送りローラ及び巻き込みローラからなる３つのローラを略平行に配置し、前記第１送りローラと巻き込みローラ間に弾性材挿入隙間を設けるとともに３つのローラで包囲される巻き込み空間を設け、前記巻き込みローラと第１又は第２送りローラ間に自己粘着性フィルムを供給する自己粘着性フィルム供給手段を備えた梱包装置であって、前記弾性材挿入隙間から巻き込み空間に供給される弾性材を３つのローラで挟み、前記第１及び第２送りローラについては弾性材の供給方向に合わせた回転方向に回転し、前記第１及び第２送りローラとは弾性材に対して反対側に位置する巻き込みローラについては弾性材の供給方向とは反対の回転方向に回転することにより、前記巻き込み空間で弾性材を先端側から順次巻き込みローラ側へ反転させて渦巻き状に巻き取り、前記巻き取り途中において既に巻き終わった部分の弾性材外周面とこれから巻く部分との間に自己粘着性フィルム供給手段から前記自己粘着性フィルムを供給して前記３つのローラの回転により弾性材とともに渦巻き状に巻き取り、前記弾性材の巻き取り後も弾性材の最外周面に少なくとも１周自己粘着性フィルムを巻き付けて自己粘着性フィルム同士を重ねるようにしたことを特徴とする弾性材の梱包装置に係る。
【００１１】
請求項５の発明は、回転中心が三角形の頂点を構成するように第１送りローラ、第２送りローラ及び巻き込みローラからなる３つのローラを略平行に配置し、前記第１送りローラと巻き込みローラ間に弾性材挿入隙間を設けるとともに３つのローラで包囲される巻き込み空間を設け、前記第１送りローラには第２送りローラとは反対側に配置した第１補助ローラとの間に供給ベルトを張設し、前記巻き込みローラには前記供給ベルトと対向する巻き込みベルトを巻き込み補助ローラとの間に張設し、前記両ベルト間隔を両補助ローラ側から弾性材挿入隙間側に向けて小とし、前記巻き込みローラと第１又は第２送りローラ間に自己粘着性フィルムを供給する自己粘着性フィルム供給手段を備えた梱包装置であって、前記供給ベルト上に載置した弾性材を第１送りローラ及び供給ベルトの回転により弾性材挿入隙間側へ供給するとともに、前記弾性材の上方に位置する巻き込みローラ及び巻き込みベルトを弾性材の供給方向とは反対方向へ回転させ、前記弾性材の先端が上面側で弾性材巻き込みベルトと接触した際に前記巻き込みベルトの回転により弾性材の先端を巻き込みベルト側へ反転させて巻き込みベルトと供給ベルト間で折り曲げて挟み、前記弾性材先端の反転折り曲げ後に巻き込みローラ及び巻き込みベルトの回転をそれまでとは反対の弾性材供給方向に回転させて弾性材をさらに弾性材挿入隙間側へ供給し、該弾性材挿入隙間から弾性材先端を巻き込み空間に供給して前記弾性材先端を前記巻き込みローラと前記弾性材の供給方向に合わせて回転する第１及び第２送りローラとで挟み、次いで前記巻き込みローラを弾性材供給方向とは反対方向に回転させ、前記３つのローラの回転により前記巻き込み空間の弾性材を巻き込みローラ側へ反転させて渦巻き状に巻き取り、前記巻き取り途中において既に巻き終わった部分の弾性材外周面とこれから巻く部分との間に自己粘着性フィルムの一端側を挟み、前記自己粘着性フィルムと共に弾性材の残りの部分を端部まで巻き取り、前記弾性材の巻き取り後も弾性材の最外周面に少なくとも１周自己粘着性フィルムを巻き付けて自己粘着性フィルム同士を重ね、自己粘着性で固定することを特徴とする弾性材の梱包装置に係る。
【００１２】
【発明の実施の形態】
以下添付の図面に従ってこの発明の実施の形態について説明する。
図１はこの発明の梱包装置を用いる梱包方法により梱包された梱包構造を有する弾性材の一実施例を示す斜視図、図２は図１の２−２断面図、図３はこの発明の一実施例に係る梱包装置の概略図、図４は同梱包装置における先端巻き込み開始時を示す概略図、図５は自己粘着性フィルムの巻き込み時を示す概略図、図６は自己粘着性フィルムのみの巻き込み時を示す概略図、図７は他の実施例に係る梱包装置の概略図、図８は同梱包装置における先端巻き込み開始時を示す概略図、図９は弾性材の先端を巻き込み空間へ移動させる際を示す概略図、図１０は自己粘着性フィルムの巻き込み時を示す概略図、図１１は弾性材巻き込み終了付近を示す概略図、図１２は自己粘着性フィルムのみの巻き込み時を示す概略図である。
【００１３】
図１及び図２に示す梱包構造は、所定長の弾性材１１をその一端側から他端まで渦巻き状に巻いて、その渦巻き形状を自己粘着性フィルム１２により固定したものである。対象となる弾性材１１としては、弾性があって渦巻き状に巻くことの可能なものであれば良く、軟質ウレタンフォーム、繊維製品等を挙げることができる。また、弾性材１１は、マットレスや布団のように、布材等のカバーで覆われたものであってもよい。
【００１４】
自己粘着性フィルム１２は、自己の表面同士の接触により粘着性を発揮し、他部材との接触によっては全くあるいは殆ど粘着性を発揮しない性質を有するプラスチックフィルムであり、公知のもの、例えば包装用ストレッチフィルムが好適である。また、自己粘着性フィルム１２の強度は、弾性材１１を渦巻き状に巻いて、その最外周面に自己粘着性フィルム１２を巻き付けた際に、自己粘着性フィルム１２が弾性材の復元力で破れないものとされる。この実施例における自己粘着性フィルム１２は、商品名：ハイストレッチフィルムＡＲ２５、伊藤忠サンプラス（株）製であり、厚み２５μｍ、ＪＩＳＺ１７０２による破断点強度、縦方向（ＭＤ）が３９．２ＭＰａ、横方向（ＴＤ）が３６．１ＭＰａ、破断点伸度が、縦方向（ＭＤ）が４４１％、横方向（ＴＤ）が６８１％である。
【００１５】
前記自己粘着性フィルム１２は、前記渦巻き状に巻かれた弾性材１１間に自己粘着性フィルム１２の長さ方向一端側が挟まれて、弾性材１１と共に弾性材１１の他端まで渦巻き状に巻かれ、さらには弾性材１１の最外周面にも少なくとも１周巻き付けられて自己粘着性フィルム１２同士が重なり合うことにより自己粘着性を発揮し固定されている。
【００１６】
なお、前記自己粘着性フィルム１２の幅を弾性材１１の幅よりも大とし、弾性材１１の側面１１ａからはみだした自己粘着性フィルム１２の側部１２ａ同士を重ねて自己粘着性で固定すれば、より、確実に弾性材１１の渦巻き形状を固定することができる。
【００１７】
図３ないし図６に示すこの発明の一実施例に係る梱包装置２０は、軟質ウレタンフォームやマットレス等の所定長からなる弾性材１１を図１及び図２に示したように渦巻き状に巻いて梱包するためのものであり、第１送りローラ２１、第２送りローラ３１、巻き込みローラ４１及び自己粘着性フィルム供給手段５１とを有する。
【００１８】
第１送りローラ２１は、前記弾性材１１を第２送りローラ３１側へ供給するためのものであり、図示しない駆動モータにより一方向、この例では反時計回り方向へ回転するようになっている。また、この実施例の第１送りローラ２１にあっては、第２ローラとは反対側位置、すなわち弾性材１１の供給（移動）方向Ｘに対して上流側に配置された第１補助ローラ２３との間に環状の供給ベルト２５が掛け渡され、この供給ベルト２５を第１送りローラ２１と同方向へ回転させるようになっている。符号２２は第１送りローラ２１の回転中心であり、回転軸が挿通されている。
【００１９】
第２送りローラ３１は、前記弾性材１１が巻き込みローラ４１側へ反転するのを助けるものであり、図示しない駆動モータによって前記第１送りローラ２１と同一方向（この例では反時計回り方向）へ回転するようになっている。符号３２は第２送りローラ３１の回転中心であり、回転軸が挿通されている。この第２送りローラ３１は、前記第１送りローラ２１と略平行にされるとともに、前記弾性材１１の供給方向Ｘに対して第１ローラ２１よりも下流側に位置し、第１送りローラ２１との間の谷間３７に隙間ｄ１を生じるように設けられている。前記隙間ｄ１は、巻き込み前の弾性材１１の厚みや、巻き込み後の弾性材１１の外径等によって値を変えられるようにされるのが好ましい。この例では、図示しないシリンダ装置によって第２送りローラ３１が第１送りローラ２１に接近離間できるようになっている。
【００２０】
前記第２送りローラ３１の寸法や回転速度は適宜とされるが、少なくとも外周速度が弾性材１１の供給速度（供給ベルト２５の速度）と同じか、僅かに速くされるのが好ましい。このように回転速度を設定すれば、弾性材１１を巻き込む際に、弾性材１１が第１送りローラ２１と第２送りローラ３１間で弛（たる）まず、正しく巻くことができる。また、この例においては第１送りローラ２１と第２送りローラ３１とはほぼ等しい径となっている。
【００２１】
巻き込みローラ４１は、弾性材１１を先端側１１ｂから巻き込んで渦巻き状に巻き取るためのものであり、前記第１送りローラ２１及び第２送りローラ３１と略平行にされるとともに、該巻き込みローラ４１の回転中心４２と前記第１送りローラ２１の回転中心２２及び第２送りローラ３１の回転中心３２が三角形の頂点を構成するように配置される。このように巻き込みローラ４１が配置されることにより、前記第１送りローラ２１及び第２送りローラ３１間の谷間３７と巻き込みローラ４１との間に巻き込み空間Ｓが形成され、また前記第１送りローラ２１と巻き込みローラ４１間には弾性材挿入隙間４７が形成される。この例では、前記第１送りローラ２１と第２送りローラ３１の回転中心２２，３２間を底辺とし、該底辺の垂直二等分線上に巻き込みローラ４１の回転中心４２が位置する二等辺三角形を構成するようになっている。なお、前記弾性材挿入隙間４７の間隔は、弾性材１１の厚みより小とされる。
【００２２】
前記巻き込みローラ４１は、図示しない駆動モータにより前記第１送りローラ２１及び第２送りローラ３１の回転方向に対して正逆切り替えて回転できるようになっている。それに加えて、この例では、前記巻き込み空間４７の大きさを弾性材１１の厚みや巻き取り程度に応じて調節できるようにするため、前記巻き込みローラ４１が上下方向のシリンダ装置等（図示せず）で昇降可能にされている。前記巻き込みローラ４１の寸法や回転速度は適宜とされるが、少なくとも外周速度が弾性材１１の供給速度（供給ベルト２５の速度）と同じか、僅かに速くされるのが好ましい。このように回転速度を設定すれば、弾性材１１を巻き込む際に、弾性材１１が弛（たる）まず、正しく巻くことができる。また、この例における巻き込みローラ４１は、前記第１送りローラ２１及び第２送りローラ３１とほぼ等しい径となっている。
【００２３】
自己粘着性フィルム供給手段５１は、ストレッチフィルムなどからなる自己粘着性フィルム１２を前記第１送りローラ２１又は第２送りローラ３１と巻き込み用ローラ４１間に供給するためのものである。この例では、前記第２送りローラ３１側上方に自己粘着性フィルム供給手段５１が配置されて、芯材に巻かれた自己粘着性フィルム１２を芯材ごと回転可能に保持し、前記芯材から自己粘着性フィルム１２を引き出して巻き込みローラ４１と第２送りローラ３１間に供給できるようになっている。前記自己粘着性フィルム１２の引き出し始めのセットは、この例では手動で行うようになっているが、適宜セット機構を設け、機械で行うようにしててもよい。なお、この実施例とは反対に第１送りローラ２１側に自己粘着性フィルム供給手段５１を設けて第１送りローラ２１と巻き込みローラ４１間に自己粘着性フィルム１２を供給するようにしてもよい。
【００２４】
次に、前記梱包装置２０を用いて図１及び図２に示した弾性材１１の梱包を行う方法について説明する。まず、図３に示すように、前記第１送りローラ２１及び第２送りローラ３１を、弾性材１１の供給方向Ｘと合わせた反時計回り方向へ回転させ、前記巻き込みローラ３１を弾性材１１の供給方向Ｘとは反対方向となる反時計回り方向へ回転させる。なお、前記第１送りローラ２１及び第２送りローラ３１と巻き込みローラ４１とは、弾性材１１に対して互いに反対側に位置するため、同じ反時計回り方向の回転であっても、弾性材１１の供給方向Ｘに対しては反対方向となる。
【００２５】
前記弾性材１１を第１送りローラ２１の供給ベルト２５上に載置し、該供給ベルト２５の回転（移動）により弾性材１１を、第１送りローラ２１と巻き込みローラ４１間に形成されている弾性材挿入隙間４７へ送る。
【００２６】
前記弾性材１１の先端側１１ｂが弾性材挿入隙間４７に近づいて弾性材先端１１ｂの上面１１ｃが巻き込みローラ４１に触れると、弾性材先端１１ｂの上面は、弾性材１１の供給方向Ｘとは反対方向へ巻き込みローラ４１との摩擦抵抗により引っ張られ、また第１送りローラ２１と接する弾性材１１の下面は弾性材供給方向Ｘへ第１送りローラ２１との摩擦抵抗で引っ張られるようになる。その結果、図４に示すように、前記弾性材１１は、その先端側１１ｂが巻き込みローラ４１側へ反転して折り返されながら巻き込み空間Ｓへ送られて、図５に示すように、前記第１送りローラ２１と第２送りローラ３１及び巻き込みローラ４１とで挟まれ、前記３つのローラ２１，３１，４１の回転により弾性材１１が先端側１１ｂから順に渦巻き状に巻かれる。その際、前記巻き取りの進行にしたがい、既に巻き取られた部分では弾性材１１の径が大きくなって前記３つのローラ２１，３１，４１による弾性材１１の圧縮程度が大になるため、使用する弾性材１１の厚みや長さによっては、前記弾性材１１の巻き取り進行にしたがいって巻き込みローラ４１を上昇させるのが好ましい場合もある。
【００２７】
前記弾性材１１の巻き取り途中、好ましくは弾性材の他端（後端）近くまで巻き取った時点で、図５に示すように、前記自己粘着性フィルム供給手段５１から自己粘着性フィルム１２を引き出して巻き込みローラ４１と第２送りローラ３１間の弾性材１１表面に供給し、弾性材１１とともに渦巻き状に巻き取る。それにより、自己粘着性フィルム１２の先端側１２ａが弾性材１１間に挟まれた状態で渦巻き状に巻かれる。なお、前記弾性材１１を他端（後端）近くまで巻き取った時点で自己粘着性フィルム１２を供給するのは、自己粘着性フィルム１２の使用量を減らす上で効果的である。前記自己粘着性フィルム１２は幅が弾性材１１の幅よりも広いものが好ましい。
【００２８】
前記弾性材１１を他端（後端）まで巻き取った後、図６に示すように、さらに前記第１送りローラ２１、第２送りローラ３１及び巻き込みローラ４１の回転を続け、前記自己粘着性フィルム１２を弾性材１１の最外周面に少なくとも１周巻き付け、自己粘着性フィルム同士１２を重ねて自己粘着性で固定し、弾性材１１の渦巻き形状を固定する。その後、前記自己粘着性フィルム供給手段５１と弾性材１１間で自己粘着性フィルム１２を切断し、弾性材１１を前記巻き取り装置２０から外せば図１及び図２の渦巻き状に梱包された弾性材１１が得られる。
【００２９】
また、前記弾性材１１の幅方向両側からはみだした自己粘着性フィルム１２の幅方向両縁については、弾性材１１の幅方向両側を覆うように重ねて自己粘着性フィルム１２同士を自己粘着性で固定する。
【００３０】
図７ないし図１２は他の実施例に係る梱包装置２０Ａの概略図である。この梱包装置２０Ａにおいては、供給ベルト２５と対向する巻き込みベルト４５を巻き込みベルト２５の上方に有する点で前記図３ないし図６の梱包装置２０と相違する。この例において、自己粘着性フィルム供給手段５１による自己粘着性フィルム１２の供給は、巻き込みローラ４１と第２送りローラ３１間へ行うようになっているが、それに限られるものではなく、巻き込みローラ４１と第１送りローラ２１間へ行うようにしてもよい。なお、前記梱包装置２０における構成と同じ部分については、同一の符号を用いて示す。
【００３１】
前記巻き込みベルト４５は、前記巻き込みローラ４１と該巻き込みローラ４１よりも弾性材１１の供給方向Ｘに対して上流側に配置された巻き込み補助ローラ４３との間に張設され、巻き込みローラ４１とともに時計回り方向あるいは反対方向へ切り替えて回転できるようになっている。前記両ベルト間隔ｄ２は、巻き込み補助ローラ４３及び供給ローラ２５側、すなわち弾性材１１の供給方向Ｘに対して上流側で弾性材１１の非圧縮時の厚みより大、前記第１送りローラ２１と供給ローラ４１間の弾性材挿入隙間４７側、すなわち下流側で弾性材１１の非圧縮時の厚みより小となるように、前記巻き込みベルト４５が上流側から下流に向けて下方へ傾斜している。
【００３２】
前記梱包装置２０Ａを用いる弾性材の梱包方法について説明する。まず、図７に示すように、前記弾性材１１を第１送りローラ２１の供給ベルト２５上に載置し、前記第１送りローラ２１と巻き込みローラ４１間の弾性材挿入空間４７へ、弾性材１１を先端側１１ｂから送るようにする。
【００３３】
前記弾性材１１の載置時、前記第１送りローラ２１、供給ベルト２５、第２送りローラ３１、巻き込みローラ４１及び巻き込みベルト４５は、いずれも反時計方向回りに回転している。なお、前記第１送りローラ２１、供給ベルト２５及び第２送りローラ３１側と巻き込みローラ４１及び巻き込みベルト４５側とは弾性材１１に対して反対側に位置することになるため、第１送りローラ２１及び供給ベルト２５側では弾性材１１の供給方向Ｘに合った回転となるのに対し、巻き込みローラ４１及び巻き込みベルト４５側では弾性材１１の供給方向Ｘとは反対方向の回転になる。
【００３４】
また、前記供給ベルト２５と巻き込みベルト４５の間隔ｄ２は、前記弾性材１１先端側１１ｂが弾性材挿入空間４７へ接近するまで弾性材１１上面が巻き込みベルト４５と接触しないように設定される。
【００３５】
前記弾性材１１の先端側１１ｂが弾性材挿入隙間４７に近づくにしたがい、前記供給ベルト２５と巻き込みベルト４５の間隔ｄ２が狭くなっているため、弾性材１１の先端側上面１１ｃが巻き込みベルト４５と接触するようになる。その際、弾性材１１の先端側上面１１ｃと接触する巻き込みベルト４５が弾性材１１の供給方向Ｘとは反対方向へ回転しているため、この巻き込みベルト４５と弾性材１１の先端側上面１１ｃとの間で摩擦抵抗を生じ、図８のように、弾性材１１の先端側１１ｂが巻き込みベルト４５の回転方向へ引き込まれて反転し折り曲げられる。
【００３６】
前記弾性材１１の先端側１１ｂが巻き込みベルト４５側へ反転した時点で、前記巻き込みローラ４１を、それまでとは反対の弾性材供給方向Ｘに合わせた方向、すなわち時計回り方向へ回転させ、巻き込みベルト４５を第１送りロール２１の供給ベルト２５の移動方向及び速度とほぼ一致させる。これによって、図９に示すように、弾性材１１はその先端側１１ｂが反転した状態のまま、前記巻き込み空間Ｓへ供給され、前記第１送りローラ２１、第２送りローラ３１及び巻き込みローラ４１で挟まれるようになる。
【００３７】
次いで、前記巻き込みローラ４１を再び弾性材供給方向Ｘと反対方向となる反時計回り方向へ回転させる。これによって、前記巻き込み空間Ｓに位置する弾性材１１の先端側は、図１０に示すように、第１送りローラ２１、第２送りローラ３１及び巻き込みローラ４１の回転により巻き込みローラ４１側へ反転しながら巻き込まれ、弾性材１１の渦巻き状巻き取りが始まる。その巻き取りの進行により巻き込み空間Ｓにおける弾性材１１の径が増大し、第１送りローラ２１、第２送りローラ３１及び巻き込みローラ４１により圧縮されながら巻き取られるようになる。なお、巻き取った弾性材１１の径の増大に合わせて巻き込みローラ４１を適宜上昇させてもよい。
【００３８】
前記弾性材１１の巻き取り途中、好ましくは弾性材１１を他端（後端）近くまで巻き取った時点で、前記自己粘着性フィルム供給手段５１から自己粘着性フィルム１２を、巻き込みローラ４１と第２送りローラ３１間に供給し、弾性材１１とともに渦巻き状に巻き取る。それにより、自己粘着性フィルム１２の先端側１２ａは、弾性材１１の既に巻き取られた部分とこれから巻かれる部分間に供給され、図１１に示すように、その後弾性材１１間に挟まれた状態で渦巻き状に巻かれる。
【００３９】
前記弾性材１１を他端（後端）まで巻き取った後、図１２のように、さらに前記第１送りローラ２１、第２送りローラ３１及び巻き込みローラ４１の回転を続け、前記自己粘着性フィルム１２を弾性材１１の最外周面に少なくとも１周巻き付け、自己粘着性同士１２を重ねて自己粘着性で接着し、弾性材１１の渦巻き形状を固定する。その後、前記自己粘着性フィルム供給手段５１と弾性材１１間で自己粘着性フィルム１２を切断し、弾性剤１１を前記巻き込み空間から外せば図１及び図２の渦巻き状に梱包された弾性材１１が得られる。
【００４０】
また、弾性材１１の幅方向両側からはみだした自己粘着性フィルム１２の幅方向両縁については、弾性材１１の幅方向両側を覆うように重ね自己粘着性フィルム１２同士を自己粘着性で固定する。
【００４１】
【発明の効果】
以上図示し説明したように、前記梱包構造によれば、マットレスや布団等のように裁断することのできない弾性材に対しても、裁断すること無く、コンパクトに梱包することができる、しかも、渦巻き状に巻かれた弾性材の最外周面には自己粘着性フィルムが少なくとも１周巻き付いて自己粘着性により全面で粘着固定されているため、自己粘着性フィルムの一部に穴があいたり傷がが付いても、真空梱包とは異なり、弾性材の渦巻き状を維持することができ、梱包状態を安定して維持することができる。さらに、自己粘着性フィルムの一端が弾性材間に挟まれているため、弾性材と自己粘着性フィルムとの一体性が強く、確実に弾性材の渦巻き形状を固定することができる。また、梱包を解く場合には、自己粘着性フィルムが他部材である弾性材に粘着しないため、弾性材巻き戻しの妨げになることがない。
【００４２】
請求項１ないし３の発明に係る梱包方法によれば、前記梱包構造を容易に得ることができる。さらに請求項２のように供給ベルトと巻き込みベルト間で弾性材を挟むようにする場合には、弾性材の供給から弾性材の先端側反転及びその後の渦巻き状の巻き取りまでを効率良く行うことができる。また、請求項３のように、自己粘着性フィルムを弾性材の巻き終わり近くで弾性材間に挟むようにすれば、自己粘着性フィルムの使用量を減らすことができ、経済的である。
【００４３】
請求項４及び５に係る梱包装置によれば、前記梱包構造及び梱包方法を容易に実現することができる。しかも、装置が簡単であるため、メンテナンス性に優れ、装置も安価である効果がある。
【図面の簡単な説明】
【図１】この発明の梱包装置を用いる梱包方法により梱包された梱包構造を有する弾性材の一実施例を示す斜視図である。
【図２】図１の２−２断面図である。
【図３】この発明の一実施例に係る梱包装置の概略図である。
【図４】同梱包装置における先端巻き込み開始時を示す概略図である。
【図５】自己粘着性フィルムの巻き込み時を示す概略図である。
【図６】自己粘着性フィルムのみの巻き込み時を示す概略図である。
【図７】他の実施例に係る梱包装置の概略図である。
【図８】同梱包装置における先端巻き込み開始時を示す概略図である。
【図９】弾性材の先端を巻き込み空間へ移動させる際を示す概略図である。
【図１０】自己粘着性フィルムの巻き込み時を示す概略図である。
【図１１】弾性材巻き込み終了付近を示す概略図である。
【図１２】自己粘着性フィルムのみの巻き込み時を示す概略図である。
【符号の説明】
１１弾性材
１２自己粘着性フィルム
２１第１送りローラ
２２第１送りローラの回転中心
２５供給ベルト
３１第２送りローラ
３２第２送りローラの回転中心
４１巻き込みローラ
４２巻き込みローラの回転中心
４５巻き込みベルト
４７弾性材挿入隙間
５１自己粘着性フィルム供給手段
Ｓ巻き込み空間[0001]
BACKGROUND OF THE INVENTION
This invention fixes an elastic material such as flexible urethane foam in a spirally wound state. Packing method and packing device About.
[0002]
[Prior art]
Conventionally, elastic materials such as flexible urethane foam and textile products have been provided with various packages because they require a large space for handling as they are in storage, transportation and sales.
[0003]
For example, the volume of the elastic material is made smaller than that of the elastic material as it is by putting the elastic material in a non-breathable bag as it is, and removing the air in the bag to create a vacuum. In addition, a method has been generally performed in which the elastic material is cut into small pieces and then packed by reducing the volume by compression or the like.
[0004]
However, in the packaging that vacuums the bag, the degree of vacuum in the bag may drop due to some scratches on the bag during storage, transportation, sales, etc., and the product may be restored due to the elasticity of the elastic material. was there. In addition, if the product is restored during transportation, the product fills the transport vehicle and is difficult to remove, and if the product is restored while it is being stored in a warehouse or at home, the product fills the warehouse or intrusion. As a result, it becomes difficult to take out.
[0005]
Further, the compressed package after being cut into small pieces cannot be used for products that cannot be cut into pieces such as mattresses, that is, products that are desired to be handled as large.
[0006]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of the above points, and in packing when storing, transporting, selling, etc., an elastic material such as flexible urethane foam, the elastic material is not cut small, and the outer film is scratched. Can be handled in a more stable form than before. Packing method and packing device Is to provide.
[0007]
[Means for Solving the Problems]
Claim 1 According to the invention, three rollers including a first feed roller, a second feed roller, and a winding roller are arranged substantially in parallel so that the center of rotation forms a vertex of a triangle, and elastic between the first feeding roller and the winding roller. A material insertion gap is provided and a winding space surrounded by three rollers is provided. An elastic material is supplied from the elastic material insertion gap to the winding space and is sandwiched between the three rollers. The first and second feed rollers are elastic. Rotating in the rotation direction according to the material supply direction, and the entraining roller located on the opposite side to the elastic material with respect to the first and second feed rollers in the rotation direction opposite to the elastic material supply direction By rotating, the elastic material is sequentially reversed from the front end side to the winding roller side in the winding space and wound into a spiral shape, and is already wound during the winding. The one end side of the self-adhesive film is sandwiched between the outer peripheral surface of the elastic material at the separated portion and the portion to be wound, and the remaining portion of the elastic material is wound up to the end together with the self-adhesive film. The present invention relates to a packaging method for an elastic material, characterized in that a self-adhesive film is wound around the outermost peripheral surface of the elastic material at least once, and the self-adhesive films are overlapped and fixed with self-adhesion.
[0008]
Claim 2 According to the invention, three rollers including a first feed roller, a second feed roller, and a winding roller are arranged substantially in parallel so that the center of rotation forms a vertex of a triangle, and elastic between the first feeding roller and the winding roller. A material insertion gap and a winding space surrounded by three rollers are provided, and a supply belt is stretched between the first feed roller and a first auxiliary roller disposed on the opposite side of the second feed roller. The entrainment roller is provided with a entrainment belt facing the supply belt and stretched between the entrainment auxiliary roller, and the distance between the both belts is reduced from the both auxiliary rollers toward the elastic material insertion gap, and the supply belt The elastic material placed on the elastic material is supplied to the elastic material insertion gap side by the rotation of the first feed roller and the supply belt, and the winding roller and the winding material positioned above the elastic material are also provided. The belt is rotated in a direction opposite to the direction in which the elastic material is supplied, and when the tip of the elastic material comes into contact with the elastic material entraining belt on the upper surface side, the end of the elastic material is reversed to the entraining belt side by the rotation of the entraining belt. Folding between the entraining belt and the supply belt and inserting the elastic material further by rotating the entraining roller and the entraining belt in the opposite elastic material supply direction after reverse folding of the tip of the elastic material First and second feed rollers that supply to the gap side, supply the tip of the elastic material from the elastic material insertion gap to the entrainment space, and rotate the tip of the elastic material in accordance with the entraining roller and the supply direction of the elastic material; Then, the winding roller is rotated in the direction opposite to the elastic material supply direction, and the elastic material in the winding space is wound by the rotation of the three rollers. The self-adhesive film is wound up in a spiral shape by reversing it into the winding roller, and sandwiching one end side of the self-adhesive film between the elastic material outer peripheral surface of the portion already wound during the winding and the portion to be wound from now on, The remaining portion of the elastic material is wound up to the end together with the film, and after the elastic material is wound, the self-adhesive film is wrapped around the outermost peripheral surface of the elastic material at least once, and the self-adhesive films are stacked. It is related with the packing method of the elastic material characterized by fixing with property.
[0009]
Claim 3 The invention of claim 1 or 2 1 is characterized in that one end side of the self-adhesive film is sandwiched between elastic materials near the end of winding of the elastic material.
[0010]
Claim 4 According to the invention, three rollers including a first feed roller, a second feed roller, and a winding roller are arranged substantially in parallel so that the center of rotation forms a vertex of a triangle, and elastic between the first feeding roller and the winding roller. A packing device provided with a self-adhesive film supply means for providing a material insertion gap and a winding space surrounded by three rollers and supplying a self-adhesive film between the winding roller and the first or second feeding roller The elastic material supplied to the entrainment space from the elastic material insertion gap is sandwiched between three rollers, the first and second feed rollers are rotated in a rotation direction in accordance with the elastic material supply direction, and the first By rotating the entraining roller located on the opposite side to the elastic material with respect to the first and second feed rollers in the rotation direction opposite to the elastic material supply direction, In the winding space, the elastic material is sequentially reversed from the leading end side to the winding roller side and wound into a spiral shape, and the self-adhesiveness between the outer peripheral surface of the elastic material that has already been wound during the winding and the portion to be wound from now on The self-adhesive film is supplied from the film supply means, and is wound in a spiral with the elastic material by the rotation of the three rollers. After the elastic material is wound, the self-adhesive film is at least one turn on the outermost peripheral surface of the elastic material. The present invention relates to a packing device for elastic material, characterized in that a self-adhesive film is wrapped around the film.
[0011]
Claim 5 According to the invention, three rollers including a first feed roller, a second feed roller, and a winding roller are arranged substantially in parallel so that the center of rotation forms a vertex of a triangle, and elastic between the first feeding roller and the winding roller. A material insertion gap and a winding space surrounded by three rollers are provided, and a supply belt is stretched between the first feed roller and a first auxiliary roller disposed on the opposite side of the second feed roller. The winding roller has a winding belt facing the supply belt stretched between the winding auxiliary roller, and the interval between the belts is reduced from the auxiliary roller side toward the elastic material insertion gap side, and the winding roller A self-adhesive film supply means for supplying a self-adhesive film between the first and second feed rollers and an elastic material placed on the supply belt The elastic material is supplied to the elastic material insertion gap side by the rotation of the first feed roller and the supply belt, and the entraining roller and the entraining belt positioned above the elastic material are rotated in the direction opposite to the elastic material supplying direction, When the front end of the elastic member comes into contact with the elastic material entraining belt on the upper surface side, the elastic material tip is reversed to the entraining belt side by the rotation of the entraining belt, and is bent and sandwiched between the entraining belt and the supply belt. After bending, the rotation of the entraining roller and the entraining belt is rotated in the direction opposite to the elastic material supply direction so that the elastic material is further supplied to the elastic material insertion gap, and the elastic material tip is inserted into the entrainment space from the elastic material insertion gap. The first and second feed rollers that supply and rotate the tip of the elastic material according to the entrainment roller and the supply direction of the elastic material. Next, the winding roller is rotated in a direction opposite to the elastic material supply direction, and the elastic material in the winding space is reversed to the winding roller side by the rotation of the three rollers, and is wound in a spiral shape. Between the elastic material outer peripheral surface of the already wound part and the part to be wound in step 1, the one end side of the self-adhesive film is sandwiched, and the remaining part of the elastic material is wound up to the end together with the self-adhesive film. A self-adhesive film is wound around the outermost peripheral surface of an elastic material even after the material is wound, the self-adhesive films are overlapped, and fixed by self-adhesion.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 illustrates the present invention. Packed by packing method using packing device FIG. 2 is a cross-sectional view taken along the line 2-2 of FIG. 1, FIG. 3 is a schematic view of a packaging device according to an embodiment of the present invention, and FIG. 4 is the packaging device. FIG. 5 is a schematic diagram showing the time of starting the self-adhesive film, FIG. 6 is a schematic diagram showing the time of winding only the self-adhesive film, and FIG. FIG. 8 is a schematic diagram showing the start of winding of the tip in the packing device, FIG. 9 is a schematic diagram showing when the tip of the elastic material is moved to the winding space, and FIG. 10 is the winding of the self-adhesive film. FIG. 11 is a schematic diagram showing the vicinity of the end of the elastic material winding, and FIG. 12 is a schematic diagram showing the time of winding only the self-adhesive film.
[0013]
The packaging structure shown in FIGS. The elastic material 11 having a predetermined length is spirally wound from one end side to the other end, and the spiral shape is fixed by the self-adhesive film 12. The target elastic material 11 may be any elastic material that is elastic and can be wound in a spiral shape, and examples thereof include flexible urethane foam and fiber products. The elastic material 11 may be covered with a cover such as a cloth material, such as a mattress or a futon.
[0014]
The self-adhesive film 12 is a plastic film having a property of exhibiting adhesiveness by contact between its own surfaces and exhibiting no or almost no adhesiveness by contact with other members. A stretch film is preferred. Further, the strength of the self-adhesive film 12 is such that when the elastic material 11 is wound in a spiral shape and the self-adhesive film 12 is wound around the outermost peripheral surface, the self-adhesive film 12 is broken by the restoring force of the elastic material. Not supposed to be. The self-adhesive film 12 in this example is trade name: High Stretch Film AR25, manufactured by ITOCHU Sunplus Co., Ltd., thickness 25 μm, strength at break according to JIS Z1702, longitudinal direction (MD) 39.2 MPa, horizontal The direction (TD) is 36.1 MPa, the elongation at break is 441% in the machine direction (MD) and 681% in the transverse direction (TD).
[0015]
The self-adhesive film 12 is wound spirally to the other end of the elastic material 11 together with the elastic material 11 with one end in the length direction of the self-adhesive film 12 sandwiched between the elastic material 11 wound in the spiral shape. In addition, the self-adhesive film 12 is overlapped and wound around the outermost peripheral surface of the elastic material 11 so that the self-adhesive films 12 overlap each other and are fixed.
[0016]
If the width of the self-adhesive film 12 is larger than the width of the elastic material 11 and the side portions 12a of the self-adhesive film 12 protruding from the side surface 11a of the elastic material 11 are overlapped and fixed with self-adhesiveness. Thus, the spiral shape of the elastic member 11 can be fixed more reliably.
[0017]
A packaging device 20 according to an embodiment of the present invention shown in FIGS. 3 to 6 is formed by winding an elastic material 11 having a predetermined length such as a flexible urethane foam or a mattress in a spiral shape as shown in FIGS. It is for packing, and has a first feed roller 21, a second feed roller 31, a winding roller 41, and a self-adhesive film supply means 51.
[0018]
The first feed roller 21 is for supplying the elastic material 11 to the second feed roller 31 side, and is rotated in one direction, in this example, counterclockwise, by a drive motor (not shown). . Further, in the first feed roller 21 of this embodiment, the first auxiliary roller 23 disposed on the opposite side of the second roller, that is, on the upstream side with respect to the supply (movement) direction X of the elastic material 11. An annular supply belt 25 is stretched between them, and the supply belt 25 is rotated in the same direction as the first feed roller 21. Reference numeral 22 denotes a rotation center of the first feed roller 21, and a rotation shaft is inserted therethrough.
[0019]
The second feed roller 31 assists the elastic material 11 to be reversed to the entrainment roller 41 side, and is driven in the same direction as the first feed roller 21 (counterclockwise direction in this example) by a drive motor (not shown). It is designed to rotate. Reference numeral 32 denotes a center of rotation of the second feed roller 31, and a rotation shaft is inserted therethrough. The second feed roller 31 is substantially parallel to the first feed roller 21 and is located downstream of the first roller 21 with respect to the supply direction X of the elastic material 11. Is provided so as to generate a gap d1 in the valley 37 between the two. It is preferable that the gap d1 has a value that can be changed depending on the thickness of the elastic material 11 before the winding, the outer diameter of the elastic material 11 after the winding, and the like. In this example, the second feed roller 31 can approach and separate from the first feed roller 21 by a cylinder device (not shown).
[0020]
The dimensions and rotation speed of the second feed roller 31 are set as appropriate, but it is preferable that at least the outer peripheral speed is equal to or slightly higher than the supply speed of the elastic material 11 (the speed of the supply belt 25). If the rotational speed is set in this way, when the elastic material 11 is wound, the elastic material 11 can be wound properly between the first feed roller 21 and the second feed roller 31 first. In this example, the first feed roller 21 and the second feed roller 31 have substantially the same diameter.
[0021]
The entraining roller 41 is for entraining the elastic material 11 from the distal end side 11b and winding it in a spiral shape. The entraining roller 41 is made substantially parallel to the first feeding roller 21 and the second feeding roller 31 and the entraining roller 41. The rotation center 42, the rotation center 22 of the first feed roller 21, and the rotation center 32 of the second feed roller 31 are arranged so as to form a triangular apex. By arranging the winding roller 41 in this way, a winding space S is formed between the valley 37 between the first feeding roller 21 and the second feeding roller 31 and the winding roller 41, and the first feeding roller. An elastic material insertion gap 47 is formed between the roller 21 and the entraining roller 41. In this example, an isosceles triangle having a base between the rotation centers 22 and 32 of the first feed roller 21 and the second feed roller 31 and a center of rotation 42 of the winding roller 41 positioned on a vertical bisector of the base is defined. It is configured. The interval between the elastic material insertion gaps 47 is smaller than the thickness of the elastic material 11.
[0022]
The entrainment roller 41 can be rotated by switching between forward and reverse with respect to the rotation direction of the first feed roller 21 and the second feed roller 31 by a drive motor (not shown). In addition, in this example, in order to adjust the size of the entrainment space 47 in accordance with the thickness of the elastic material 11 and the degree of winding, the entraining roller 41 is provided with a vertical cylinder device or the like (not shown). ) Can be moved up and down. The size and rotation speed of the entraining roller 41 are set appropriately, but it is preferable that at least the outer peripheral speed is the same as or slightly higher than the supply speed of the elastic material 11 (the speed of the supply belt 25). If the rotational speed is set in this way, when the elastic material 11 is wound, the elastic material 11 does not loosen and can be wound correctly. Further, the winding roller 41 in this example has a diameter substantially equal to that of the first feed roller 21 and the second feed roller 31.
[0023]
The self-adhesive film supply means 51 is for supplying the self-adhesive film 12 made of a stretch film or the like between the first feed roller 21 or the second feed roller 31 and the winding roller 41. In this example, the self-adhesive film supply means 51 is arranged above the second feed roller 31 side, and the self-adhesive film 12 wound around the core material is rotatably held together with the core material. The self-adhesive film 12 can be pulled out and supplied between the entraining roller 41 and the second feeding roller 31. In this example, the initial setting of the self-adhesive film 12 to be pulled out is performed manually. However, the self-adhesive film 12 may be performed manually by providing an appropriate setting mechanism. In contrast to this embodiment, a self-adhesive film supply means 51 may be provided on the first feed roller 21 side to supply the self-adhesive film 12 between the first feed roller 21 and the entraining roller 41. .
[0024]
Next, a method for packing the elastic material 11 shown in FIGS. 1 and 2 using the packing device 20 will be described. First, as shown in FIG. 3, the first feed roller 21 and the second feed roller 31 are rotated in the counterclockwise direction together with the supply direction X of the elastic material 11, and the entraining roller 31 is moved to the elastic material 11. Rotate counterclockwise, which is the opposite direction to the supply direction X. The first feed roller 21 and the second feed roller 31 and the entraining roller 41 are located on the opposite sides with respect to the elastic material 11, so that the elastic material 11 can be rotated even in the same counterclockwise rotation. This is the opposite direction to the supply direction X.
[0025]
The elastic material 11 is placed on the supply belt 25 of the first feed roller 21, and the elastic material 11 is formed between the first feed roller 21 and the entraining roller 41 by the rotation (movement) of the supply belt 25. It sends to the elastic material insertion gap 47.
[0026]
When the distal end side 11b of the elastic material 11 approaches the elastic material insertion gap 47 and the upper surface 11c of the elastic material distal end 11b touches the entraining roller 41, the upper surface of the elastic material distal end 11b is opposite to the supply direction X of the elastic material 11. The elastic material 11 is pulled in the direction by the frictional resistance with the winding roller 41, and the lower surface of the elastic material 11 in contact with the first feeding roller 21 is pulled in the elastic material supply direction X by the frictional resistance with the first feeding roller 21. As a result, as shown in FIG. 4, the elastic member 11 is sent to the winding space S while its front end side 11b is reversed and turned back to the winding roller 41 side, and as shown in FIG. It is sandwiched between the feed roller 21, the second feed roller 31, and the entraining roller 41, and the elastic material 11 is spirally wound in order from the front end side 11b by the rotation of the three rollers 21, 31, 41. At that time, as the winding progresses, the diameter of the elastic material 11 increases in the already wound portion, and the degree of compression of the elastic material 11 by the three rollers 21, 31, 41 becomes large. Depending on the thickness and length of the elastic material 11 to be rolled, it may be preferable to raise the winding roller 41 in accordance with the winding of the elastic material 11.
[0027]
As shown in FIG. 5, the self-adhesive film 12 is removed from the self-adhesive film supply means 51 during winding of the elastic material 11, preferably at the time when the elastic material 11 is wound up to near the other end (rear end) of the elastic material. The elastic material 11 is pulled out and supplied to the surface of the elastic material 11 between the entraining roller 41 and the second feed roller 31, and is wound in a spiral shape together with the elastic material 11. Thereby, the front end side 12a of the self-adhesive film 12 is wound in a spiral shape with the elastic material 11 sandwiched therebetween. In addition, supplying the self-adhesive film 12 when the elastic material 11 is wound up to the vicinity of the other end (rear end) is effective in reducing the amount of the self-adhesive film 12 used. The self-adhesive film 12 preferably has a width wider than that of the elastic material 11.
[0028]
After winding the elastic material 11 to the other end (rear end), as shown in FIG. 6, the first feed roller 21, the second feed roller 31 and the entraining roller 41 are further rotated, and the self-adhesiveness The film 12 is wound around the outermost peripheral surface of the elastic material 11 at least once, the self-adhesive films 12 are overlapped and fixed with self-adhesion, and the spiral shape of the elastic material 11 is fixed. Then, if the self-adhesive film 12 is cut between the self-adhesive film supply means 51 and the elastic material 11 and the elastic material 11 is removed from the winding device 20, the elastic material packed in the spiral shape of FIGS. Material 11 is obtained.
[0029]
Further, the both edges of the self-adhesive film 12 protruding from both sides in the width direction of the elastic material 11 are overlapped so as to cover both sides of the elastic material 11 in the width direction, and the self-adhesive films 12 are made self-adhesive. Fix it.
[0030]
7 to 12 are schematic views of a packaging device 20A according to another embodiment. The packaging device 20A is different from the packaging device 20 shown in FIGS. 3 to 6 in that a winding belt 45 facing the supply belt 25 is provided above the winding belt 25. In this example, the supply of the self-adhesive film 12 by the self-adhesive film supply means 51 is performed between the entraining roller 41 and the second feed roller 31, but is not limited thereto, and the entraining roller 41 is not limited thereto. And between the first feed rollers 21. In addition, about the same part as the structure in the said packing apparatus 20, it shows using the same code | symbol.
[0031]
The entrainment belt 45 is stretched between the entrainment roller 41 and an entrainment auxiliary roller 43 disposed on the upstream side of the entrainment roller 41 with respect to the supply direction X of the elastic material 11. It can be rotated by switching to the rotation direction or the opposite direction. The belt interval d2 is larger than the thickness when the elastic material 11 is not compressed on the side of the winding auxiliary roller 43 and the supply roller 25, that is, on the upstream side with respect to the supply direction X of the elastic material 11, and with the first feed roller 21. The entrainment belt 45 is inclined downward from the upstream side toward the downstream side so as to be smaller than the thickness when the elastic material 11 is not compressed on the elastic material insertion gap 47 side between the supply rollers 41. .
[0032]
An elastic material packing method using the packing device 20A will be described. First, as shown in FIG. 7, the elastic material 11 is placed on the supply belt 25 of the first feed roller 21, and the elastic material is inserted into the elastic material insertion space 47 between the first feed roller 21 and the entraining roller 41. 11 is sent from the front end side 11b.
[0033]
When the elastic material 11 is placed, the first feeding roller 21, the supply belt 25, the second feeding roller 31, the entraining roller 41, and the entraining belt 45 are all rotated counterclockwise. The first feed roller 21, the supply belt 25 and the second feed roller 31 side and the entrainment roller 41 and the entrainment belt 45 side are located on the opposite side with respect to the elastic material 11, so that the first feed roller On the side of 21 and the supply belt 25, the rotation is in accordance with the supply direction X of the elastic material 11, whereas on the side of the entrainment roller 41 and the entrainment belt 45, the rotation is in the direction opposite to the supply direction X of the elastic material 11.
[0034]
The interval d2 between the supply belt 25 and the entrainment belt 45 is set so that the upper surface of the elastic material 11 does not contact the entrainment belt 45 until the distal end side 11b of the elastic material 11 approaches the elastic material insertion space 47.
[0035]
As the distal end side 11 b of the elastic material 11 approaches the elastic material insertion gap 47, the distance d <b> 2 between the supply belt 25 and the entrainment belt 45 becomes narrower, and therefore the upper end surface 11 c of the elastic material 11 becomes closer to the entrainment belt 45. Come into contact. At that time, since the entraining belt 45 that contacts the tip-side upper surface 11c of the elastic material 11 rotates in the direction opposite to the supply direction X of the elastic material 11, the entrainment belt 45 and the tip-side upper surface 11c of the elastic material 11 As shown in FIG. 8, the front end side 11b of the elastic material 11 is drawn in the direction of rotation of the entraining belt 45 and inverted and bent as shown in FIG.
[0036]
When the front end side 11b of the elastic material 11 is reversed to the winding belt 45 side, the winding roller 41 is rotated in the direction corresponding to the elastic material supply direction X opposite to that of the elastic material 11, that is, clockwise. The belt 45 is made to substantially coincide with the moving direction and speed of the supply belt 25 of the first feed roll 21. Accordingly, as shown in FIG. 9, the elastic material 11 is supplied to the entrainment space S while the tip end side 11 b is inverted, and the first feed roller 21, the second feed roller 31, and the entrainment roller 41 are used. Get caught.
[0037]
Next, the winding roller 41 is rotated again in the counterclockwise direction which is the opposite direction to the elastic material supply direction X. As a result, the front end side of the elastic member 11 positioned in the winding space S is reversed to the winding roller 41 side by the rotation of the first feeding roller 21, the second feeding roller 31, and the winding roller 41 as shown in FIG. The elastic material 11 is wound up while being wound. As the winding progresses, the diameter of the elastic material 11 in the winding space S increases, and the elastic material 11 is wound while being compressed by the first feeding roller 21, the second feeding roller 31, and the winding roller 41. Note that the winding roller 41 may be appropriately raised in accordance with an increase in the diameter of the wound elastic material 11.
[0038]
During winding of the elastic material 11, preferably when the elastic material 11 is wound up to near the other end (rear end), the self-adhesive film 12 is transferred from the self-adhesive film supply means 51 to the winding roller 41 and the second roller 41. Supplied between the two feed rollers 31 and wound together with the elastic material 11 in a spiral shape. Thereby, the front end side 12a of the self-adhesive film 12 is supplied between the already wound portion of the elastic material 11 and the portion to be wound from now on, and then sandwiched between the elastic materials 11 as shown in FIG. It is wound in a spiral shape.
[0039]
After winding the elastic material 11 to the other end (rear end), as shown in FIG. 12, the first feeding roller 21, the second feeding roller 31, and the entraining roller 41 are further rotated, and the self-adhesive film 12 is wound around the outermost peripheral surface of the elastic material 11 at least once, and the self-adhesives 12 are overlapped and bonded with self-adhesiveness, and the spiral shape of the elastic material 11 is fixed. Thereafter, the self-adhesive film 12 is cut between the self-adhesive film supply means 51 and the elastic material 11, and the elastic material 11 packed in the spiral shape of FIGS. Is obtained.
[0040]
Moreover, about the both edges of the width direction of the self-adhesive film 12 which protruded from the width direction both sides of the elastic material 11, the overlapping self-adhesive films 12 are fixed by self-adhesion so that the width direction both sides of the elastic material 11 may be covered. .
[0041]
【The invention's effect】
As shown and described above, Packing structure According to the above, even the elastic material that cannot be cut, such as a mattress or a futon, can be packed compactly without being cut, and the outermost peripheral surface of the spiral wound elastic material Since the self-adhesive film is wrapped around at least one round and is self-adhesive and fixed on the whole surface, even if a part of the self-adhesive film has holes or scratches, unlike vacuum packaging, The spiral shape of the elastic material can be maintained, and the packing state can be stably maintained. Furthermore, since one end of the self-adhesive film is sandwiched between the elastic materials, the integrity of the elastic material and the self-adhesive film is strong, and the spiral shape of the elastic material can be reliably fixed. Further, when unpacking, the self-adhesive film does not stick to the elastic material which is another member, so that the elastic material unwinding is not hindered.
[0042]
Claim 1 to 3 According to the packing method according to the invention, the packing structure can be easily obtained. further Claim 2 As described above, when the elastic material is sandwiched between the supply belt and the entrainment belt, it is possible to efficiently perform from the supply of the elastic material to the tip side reversal of the elastic material and the subsequent spiral winding. Also, Claim 3 Thus, if the self-adhesive film is sandwiched between the elastic materials near the end of winding of the elastic material, the amount of the self-adhesive film used can be reduced, which is economical.
[0043]
Claim 4 and 5 According to the packing apparatus which concerns on, the said packing structure and the packing method are easily realizable. In addition, since the apparatus is simple, it is excellent in maintainability and the apparatus is also inexpensive.
[Brief description of the drawings]
FIG. 1 of the present invention Packed by packing method using packing device It is a perspective view which shows one Example of the elastic material which has a packing structure.
2 is a cross-sectional view taken along the line 2-2 in FIG.
FIG. 3 is a schematic view of a packaging device according to an embodiment of the present invention.
FIG. 4 is a schematic view showing the time when the leading end of the packing apparatus is started.
FIG. 5 is a schematic view showing a self-adhesive film being rolled up.
FIG. 6 is a schematic view showing a state where only a self-adhesive film is entrained.
FIG. 7 is a schematic view of a packaging device according to another embodiment.
FIG. 8 is a schematic view showing the leading end of the packing device at the start of winding.
FIG. 9 is a schematic view showing when the tip of an elastic material is moved to the entrainment space.
FIG. 10 is a schematic view showing a self-adhesive film being rolled up.
FIG. 11 is a schematic view showing the vicinity of the end of the elastic material winding.
FIG. 12 is a schematic diagram showing a state where only a self-adhesive film is rolled up.
[Explanation of symbols]
11 Elastic material
12 Self-adhesive film
21 First feed roller
22 Rotation center of first feed roller
25 Supply belt
31 Second feed roller
32 Center of rotation of second feed roller
41 Rolling roller
42 Center of rotation of entraining roller
45 Entrainment belt
47 Elastic material insertion gap
51 Self-adhesive film supply means
S Entrainment space

Claims

Three rollers consisting of a first feed roller (21), a second feed roller (31) and a winding roller (41) are arranged substantially in parallel so that the center of rotation (22, 32, 42) forms a vertex of a triangle. An elastic material insertion gap (47) is provided between the first feed roller and the winding roller, and a winding space (S) surrounded by three rollers is provided,
The elastic material (11) is supplied from the elastic material insertion gap into the entrainment space and is sandwiched between three rollers, and the first and second feed rollers are rotated in a rotation direction corresponding to the elastic material supply direction (X). By rotating the entraining roller located on the opposite side to the elastic material with respect to the first and second feed rollers in the rotational direction opposite to the elastic material supply direction, the elastic material is moved in the entrainment space. Invert from the tip side to the winding roller side by side and wind it up in a spiral.
The one end side of the self-adhesive film (12) is sandwiched between the outer peripheral surface of the elastic material that has already been wound in the course of winding and the portion to be wound, and the remaining portion of the elastic material is endped together with the self-adhesive film. Winding up to
A method of packing an elastic material, comprising: winding an elastic material around the outermost peripheral surface of the elastic material, winding the self-adhesive film at least once, overlapping the self-adhesive films, and fixing the self-adhesive film.

Three rollers consisting of a first feed roller (21), a second feed roller (31) and a winding roller (41) are arranged substantially in parallel so that the center of rotation (22, 32, 42) forms a vertex of a triangle. An elastic material insertion gap (47) is provided between the first feeding roller and the winding roller, and a winding space (S) surrounded by three rollers is provided. The first feeding roller is opposite to the second feeding roller. A supply belt (25) is stretched between the first auxiliary roller (23) arranged on the side, and a winding belt (45) opposite to the supply belt is connected to the winding roller with the winding auxiliary roller (43). Between the two belts (d2) from the auxiliary roller side toward the elastic material insertion gap side,
The elastic material (11) placed on the supply belt is supplied to the elastic material insertion gap side by the rotation of the first feed roller and the supply belt, and the winding roller and the winding belt located above the elastic material are used as the elastic material. In the direction opposite to the feed direction (X) of
When the front end (11b) of the elastic material comes into contact with the elastic material entraining belt on the upper surface side, the front end of the elastic material is reversed to the entraining belt side by the rotation of the entraining belt, and is bent and sandwiched between the entraining belt and the supply belt,
After reversing and bending the tip of the elastic material, the rotation of the entraining roller and the entraining belt is rotated in the direction of the elastic material supply opposite to that before supplying the elastic material further to the elastic material insertion gap, and the elastic material is elastic from the elastic material insertion gap. A material front end is supplied to the entrainment space, and the elastic material front end is sandwiched between the entraining roller and first and second feed rollers that rotate in accordance with the supply direction of the elastic material,
Next, the entraining roller is rotated in the direction opposite to the elastic material supply direction, and the elastic material in the entraining space is reversed to the entraining roller side by the rotation of the three rollers, and wound in a spiral shape.
The one end side of the self-adhesive film (12) is sandwiched between the outer peripheral surface of the elastic material that has already been wound in the course of winding and the portion to be wound, and the remaining portion of the elastic material is endped together with the self-adhesive film. Winding up to
A method of packing an elastic material, comprising: winding an elastic material around the outermost peripheral surface of the elastic material, winding the self-adhesive film at least once, overlapping the self-adhesive films, and fixing the self-adhesive film.

The elastic material packing method according to claim 1 or 2 , wherein one end of the self-adhesive film is sandwiched between elastic materials near the end of winding of the elastic material.

Three rollers consisting of a first feed roller (21), a second feed roller (31) and a winding roller (41) are arranged substantially in parallel so that the center of rotation (22, 32, 42) forms a vertex of a triangle. An elastic material insertion gap (47) is provided between the first feed roller and the take-up roller, and a take-up space (S) surrounded by three rollers is provided, and a self-space is provided between the take-up roller and the first or second feed roller. A packing device provided with self-adhesive film supply means (51) for supplying an adhesive film (12),
The elastic material (11) supplied to the entrainment space from the elastic material insertion gap is sandwiched between three rollers, and the first and second feed rollers rotate in a rotation direction in accordance with the elastic material supply direction (X). The winding roller located on the opposite side of the first and second feed rollers with respect to the elastic material rotates in the rotation direction opposite to the elastic material supply direction, thereby leading the elastic material in the winding space. Reverse from the side to the winding roller side by side and wind up in a spiral
The self-adhesive film is supplied from the self-adhesive film supply means between the outer peripheral surface of the elastic material that has already been wound in the course of winding and the portion to be wound, and is swirled together with the elastic material by the rotation of the three rollers. An elastic material packing device comprising: a self-adhesive film that is wound around the outer peripheral surface of the elastic material so that the self-adhesive films overlap each other even after the elastic material is wound up .

Three rollers consisting of a first feed roller (21), a second feed roller (31) and a winding roller (41) are arranged substantially in parallel so that the center of rotation (22, 32, 42) forms a vertex of a triangle. An elastic material insertion gap (47) is provided between the first feeding roller and the winding roller, and a winding space (S) surrounded by three rollers is provided. The first feeding roller is opposite to the second feeding roller. A supply belt (25) is stretched between the first auxiliary roller (23) arranged on the side, and a winding belt (45) opposite to the supply belt is connected to the winding roller with the winding auxiliary roller (43). Between the two belts (d2) from the auxiliary roller side toward the elastic material insertion gap side,
A packing device comprising self-adhesive film supply means (51) for supplying a self-adhesive film (12) between the entraining roller and the first or second feed roller,
The elastic material (11) placed on the supply belt is supplied to the elastic material insertion gap side by the rotation of the first feed roller and the supply belt, and the winding roller and the winding belt located above the elastic material are used as the elastic material. In the direction opposite to the feed direction (X) of
When the front end (11b) of the elastic material comes into contact with the elastic material entraining belt on the upper surface side, the front end of the elastic material is reversed to the entraining belt side by the rotation of the entraining belt, and is bent and sandwiched between the entraining belt and the supply belt,
After reversing and bending the tip of the elastic material, the rotation of the entraining roller and the entraining belt is rotated in the direction of the elastic material supply opposite to that before supplying the elastic material further to the elastic material insertion gap, and the elastic material is elastic from the elastic material insertion gap. A material front end is supplied to the entrainment space, and the elastic material front end is sandwiched between the entraining roller and first and second feed rollers that rotate in accordance with the supply direction of the elastic material,
Next, the entraining roller is rotated in the direction opposite to the elastic material supply direction, and the elastic material in the entraining space is reversed to the entraining roller side by the rotation of the three rollers, and wound in a spiral shape.
One end of the self-adhesive film is sandwiched between the outer peripheral surface of the elastic material that has already been wound in the course of winding and the portion to be wound, and the remaining portion of the elastic material is wound to the end together with the self-adhesive film. take,
An elastic material packaging apparatus, wherein a self-adhesive film is wound around the outermost peripheral surface of the elastic material even after the elastic material is wound, the self-adhesive films are overlapped and fixed with self-adhesiveness.