JP3782566B2

JP3782566B2 - Non-slip tape welding equipment to plastic pallets

Info

Publication number: JP3782566B2
Application number: JP31652797A
Authority: JP
Inventors: 久男安福; 均毛利
Original assignee: Sanko Co Ltd
Current assignee: Sanko Co Ltd
Priority date: 1997-10-31
Filing date: 1997-10-31
Publication date: 2006-06-07
Anticipated expiration: 2017-10-31
Also published as: JPH11129332A

Description

【０００１】
【発明の属する技術分野】
本発明は、合成樹脂製パレット（以下、単に、「パレット」ともいう。）の表面に、載置された物品の滑りを防止する滑り止めテープを溶着するための合成樹脂製パレットへの滑り止めテープ溶着装置に関するものである。
【０００２】
【従来の技術】
従来、パレットの表面の滑り止めテープ溶着面と滑り止めテープの裏面とに熱風を吹き付けて、パレットの表面の滑り止めテープ溶着面と滑り止めテープの裏面とを溶融するとともに、滑り止めテープを、押圧ローラによりパレットの表面に押し付けることにより、パレットの表面に滑り止めテープを溶着するようにした合成樹脂製パレットへの滑り止めテープ溶着装置が知られている。
【０００３】
【発明が解決しようとする課題】
以下に、従来の合成樹脂製パレットへの滑り止めテープ溶着装置の要部斜視図である図５、従来の合成樹脂製パレットへの滑り止めテープ溶着装置の要部正面図である図６及び合成樹脂製パレット等の垂直断面を含む従来の合成樹脂製パレットへの滑り止めテープ溶着装置の要部側面図である図７を用いて、本発明が解決しようとする課題について説明する。
【０００４】
１は、図示されていない適当なフレームに回転自在に配設された押圧ローラであり、２は、押圧ローラ１付近に配設された、一例としての樋状のガイド部材である。３は、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１とに熱風を吹き付けて、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１とを溶融する熱風噴射機である。滑り止めテープＴは、長手方向に対して垂直な断面が、横長のほぼ長方形に形成されており、パレットＰに形成された凹溝ｐ１内に、滑り止めテープＴの上部が、パレットＰの表面から、若干突出するように溶着されるように構成されている。従って、上記のパレットＰの滑り止めテープ溶着面は、凹溝ｐ１の底面ｐ１’となる。４は、ベルトコンベヤー等のパレットＰを搬送するためのパレット搬送装置であり、図６には、パレットＰが、左から右方向に搬送される例が示されている。
【０００５】
滑り止めテープＴは、ガイド部材２に案内されながら、パレット搬送装置４により搬送されているパレットＰの滑り止めテープ溶着面（上述したように、この例においては、凹溝ｐ１の底面ｐ１’）と押圧ローラ１とによる滑り止めテープＴの挟持部Ｃ方向に移送される。そして、ガイド部材２から出た滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面とに、熱風噴射機３により熱風を吹き付けて、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１とを溶融するとともに、滑り止めテープＴを、押圧ローラ１によりパレットＰに押し付けることにより、パレット搬送装置４により搬送されているパレットＰに滑り止めテープＴを溶着する。
【０００６】
上述したように、熱風噴射機３により、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１とが溶融されるとともに、滑り止めテープＴが、押圧ローラ１によりパレットＰに押し付けられて、パレットＰに滑り止めテープＴが溶着されるが、滑り止めテープＴが、押圧ローラ１に押圧されるために、熱風噴射機３により溶融され、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１間に存在する溶けた樹脂が、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間から排出されて、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１間に存在する溶けた樹脂の量が減少し、滑り止めテープＴのパレットＰの滑り止めテープ溶着面への貼着力が弱まり、パレットＰの滑り止めテープ溶着面から滑り止めテープＴが剥離するという問題があった。
【０００７】
本発明の目的は、上述した従来の合成樹脂製パレットへの滑り止めテープ溶着装置が有する課題を解決することにある。
【０００８】
【課題を解決するための手段】
本発明は、上述した目的を達成するために、パレットの滑り止めテープ溶着面と滑り止めテープの裏面とに熱風を吹き付けて、パレットの滑り止めテープ溶着面と滑り止めテープの裏面とを溶融するとともに、滑り止めテープを、押圧ローラによりパレットに押し付けることにより、パレットに滑り止めテープを溶着するようにした合成樹脂製パレットへの滑り止めテープ溶着装置において、第１には、パレットの滑り止めテープ溶着面と滑り止めテープの裏面との間の中央部のみに、押圧ローラの押圧力を作用させることにより、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間に存在する溶けた樹脂が、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間から排出されることを抑制するように構成したものであり、第２には、滑り止めテープの長手方向に対して垂直な断面形状を、水平な上面中央部分と該水平な上面中央部分から両側面方向に下方に向かって傾斜した傾斜面とを有するように形成し、滑り止めテープの水平な上面中央部分のみに、押圧ローラを接触させて、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間の中央部のみに、押圧ローラの押圧力を作用させることにより、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間に存在する溶けた樹脂が、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間から排出されることを抑制するように構成したものであり、第３には、滑り止めテープの裏面に、水平な中央部分と該水平な中央部分から両側面方向に上方に向かって傾斜した傾斜面を形成したものであり、第４には、押圧ローラの周面を、平らな中央部と該平らな中央部から両側面に向かって徐々に小径となる傾斜面とを有するように形成し、長手方向に対して垂直な断面形状が横長の長方形である前記滑り止めテープの上面の中央部に、押圧ローラの平らな中央部のみを接触させて、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間の中央部のみに、押圧ローラの押圧力を作用させることにより、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間に存在する溶けた樹脂が、滑り止めテープの裏面と前記パレットの滑り止めテープ溶着面との間から排出されることを抑制するように構成したものであり、第５には、パレットの滑り止めテープ溶着面を、その幅方向の中央部を水平に形成するとともに、水平な中央部から幅方向の両端部に向かって下方に傾斜した傾斜面に形成し、長手方向に対して垂直な断面形状が横長の長方形である滑り止めテープの上面に、押圧ローラを接触させて、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間の中央部のみに、押圧ローラの押圧力を作用させることにより、滑り止めテープの裏面と前記パレットの滑り止めテープ溶着面との間に存在する溶けた樹脂が、滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間から排出されることを抑制するように構成したものである。
【０００９】
【実施例】
以下に、本発明の実施例について説明するが、本発明の趣旨を越えない限り何ら、本実施例に限定されるものではない。なお、上述した従来の合成樹脂製パレットへの滑り止めテープ溶着装置と同じ構成部分については、同じ符号が使用されている。
【００１０】
図１に示されている実施例においては、滑り止めテープＴの長手方向に対して垂直な断面形状が、ほぼ台形状に形成されており、滑り止めテープＴの上面ｔ２の水平な中央部分ｔ２’にのみ、押圧ローラ１の押圧力が加わり、水平な中央部分ｔ２’から側面ｔ３方向に下方に向かって傾斜した傾斜面ｔ２”には、押圧ローラ１が接触しないように構成されている。
【００１１】
押圧ローラ１の押圧力を受ける滑り止めテープＴの上面ｔ２の水平な中央部分ｔ２’の下方に位置する裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂は、押圧ローラ１の押圧力により、側面ｔ３方向に流動するが、滑り止めテープＴの上面ｔ２の傾斜部分ｔ２”は、押圧ローラ１の押圧力を受けていないので、傾斜面ｔ２”の下方に位置する滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂が、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間から排出されることが抑制されることになる。このように、滑り止めテープＴの上面ｔ２の水平な中央部分ｔ２’の下方に位置する裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂が、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間から排出されることなく、傾斜面ｔ２”の下方に位置する滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に残存するので、従って、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間には、より多くの溶けた樹脂が存在することになり、滑り止めテープＴが、強固に、パレットＰの滑り止めテープ溶着面に貼着されることになり、滑り止めテープＴのパレットＰの滑り止めテープ溶着面からの剥離を防止することができる。
【００１２】
上述したように、滑り止めテープＴの長手方向に対して垂直な断面形状を、ほぼ台形状に形成することにより、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力を作用させて、滑り止めテープＴの上面ｔ２の傾斜面ｔ２”には、押圧ローラ１の押圧力を作用させないようにしたので、滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂のパレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間からの排出が抑制される。なお、図１に示されている滑り止めテープＴの裏表を逆して、滑り止めテープＴの長手方向に対して垂直な断面形状を、逆台形状に形成しても、上記のように、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力を作用させることができる。
【００１３】
図２に示されている実施例は、図１に示されている、長手方向に対して垂直な断面形状が、ほぼ台形状の滑り止めテープＴの裏面ｔ１にも、水平な中央部ｔ１’から側面ｔ３方向に上方に向かって傾斜した傾斜面ｔ１”を形成したものであり、パレットＰの滑り止めテープ溶着面である凹溝ｐ１の底面ｐ１’と滑り止めテープＴの裏面ｔ１の傾斜面ｔ１”との間には、楔状のスリットｔ４が形成されている。このように、滑り止めテープＴの裏面ｔ１にも、水平な中央部ｔ１’から側面ｔ３方向に上方に向かって傾斜した傾斜面ｔ１”を形成したので、上述したように、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力が作用し、溶けた樹脂のパレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間からの排出が抑制されるとともに、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の傾斜面ｔ１”との間に形成された楔状のスリットｔ４に、押圧ローラ１の押圧力により、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部から滑り止めテープＴの側面ｔ３方向に流動される溶けた樹脂が溜まるので、溶けた樹脂のパレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間からの排出が更に抑制されることになる。従って、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間には、より多くの溶けた樹脂が存在することになり、滑り止めテープＴが、強固に、パレットＰの滑り止めテープ溶着面に貼着されることになり、滑り止めテープＴのパレットＰの滑り止めテープ溶着面からの剥離を、更に効果的に防止することができる。
【００１４】
図３に示されている実施例は、滑り止めテープＴの長手方向に対して垂直な断面形状が、従来の滑り止めテープＴにように、横長のほぼ長方形に形成されているものを使用した場合の例であり、この場合には、押圧ローラ１の周面１ａが、滑り止めテープＴの上面ｔ２の全幅に亘って接触しないように、押圧ローラ１の周面の中央部１ａ’のみを平らに形成するとともに、中央部１ａ’から押圧ローラ１の両側面１ｂに向かって徐々に小径となる傾斜面１ａ”を形成し、押圧ローラ１をほぼ樽状に形成したものである。このように、押圧ローラ１の周面の平らな中央部１ａ’の両側に、中央部１ａ’から押圧ローラ１の両側面１ｂに向かって徐々に小径となる傾斜面１ａ”を形成したので、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力が作用し、押圧ローラ１に接触しない滑り止めテープＴの両端部付近には、押圧ローラ１の押圧力が作用しないので、滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂のパレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間からの排出が抑制されることになる。
【００１５】
図４に示されている実施例は、図３に示されている実施例と同様に、滑り止めテープＴの長手方向に対して垂直な断面形状が、従来の滑り止めテープＴにように、横長のほぼ長方形に形成されているものを使用するとともに、押圧ローラ１を従来のように円柱状に形成し、その周面１ａが、滑り止めテープＴの上面ｔ２の全幅に亘って接触するようにした場合である。そして、パレットＰの滑り止めテープ溶着面である凹溝ｐ１の底面ｐ１’の幅方向の中央部ｐ２のみを水平に形成するとともに、凹溝ｐ１の底面ｐ１’には、中央部ｐ２から、底面ｐ１’の幅方向の両端部に向かって下方に傾斜する傾斜面ｐ３を形成したものである。このように、パレットＰの滑り止めテープ溶着面である凹溝ｐ１の底面ｐ１’の幅方向の中央部ｐ２のみを水平に形成し、凹溝ｐ１の底面ｐ１’には、中央部ｐ２から、底面ｐ１’の幅方向の両端部に向かって下方に傾斜する傾斜面ｐ３を形成したので、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力が作用し、押圧ローラ１に接触しない滑り止めテープＴの両端部付近には、押圧ローラ１の押圧力が作用しないことになる。従って、滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂のパレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間からの排出が抑制される。
【００１６】
上述したように、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力が作用し、押圧ローラ１に接触しない滑り止めテープＴの両端部付近には、押圧ローラ１の押圧力が作用しないように構成したので、滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂のパレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間からの排出が抑制され、従って、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間には、より多くの溶けた樹脂が存在することになり、滑り止めテープＴが、強固に、パレットＰの滑り止めテープ溶着面に貼着されることになり、滑り止めテープＴのパレットＰの滑り止めテープ溶着面からの剥離を防止することができる。
【００１７】
押圧ローラ１の押圧力が作用する、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間の中央部分の幅は、滑り止めテープＴの幅の１／４〜３／４程度とすることが好ましい。押圧ローラ１の押圧力が作用する、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間の中央部分の幅が、滑り止めテープＴの幅のほぼ３／４を越えると、滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との間に存在する溶けた樹脂の多くが、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間から排出してしまい、滑り止めテープＴとパレットＰの貼着強度が低下する。また、押圧ローラ１の押圧力が作用する、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間の中央部分の幅が、滑り止めテープＴの幅のほぼ１／４より少ないと、押圧ローラ１による、滑り止めテープＴの裏面ｔ１とパレットＰの滑り止めテープ溶着面との押圧力が小さくなりすぎて、滑り止めテープＴとパレットＰの貼着強度が低下することになる。
【００１８】
熱風噴射機３により熱風を吹き付けて、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１とが溶融されるが、熱風噴射機３からの熱風は、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の幅方向の中央部に最も強く当たるとともに、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１とに衝突して効果的に、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の幅方向の中央部を溶かすが、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の幅方向の端部付近は、熱風噴射機３からの熱風が側方に吹き抜けてしまうので、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の幅方向の端部付近が十分に溶融されない場合があり、滑り止めテープＴの幅方向の端部付近の貼着強度が弱く、この部分から剥離するという問題が、従来の合成樹脂製パレットへの滑り止めテープ溶着装置にはあった。しかしながら、本実施例においては、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部にのみに、押圧ローラ１の押圧力を作用させたので、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の幅方向の中央部のより多く溶けた樹脂が、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間のほぼ中央部から、溶融が不十分な幅方向の端部付近に流動するので、パレットＰの滑り止めテープ溶着面と滑り止めテープＴの裏面ｔ１の間の全体に亘って、溶けた樹脂が行き渡り、従って、滑り止めテープＴが、強固に、パレットＰの滑り止めテープ溶着面に貼着されることになる。
【００１９】
【発明の効果】
本発明は、以上説明した構成を有しているので、以下に記載する効果を奏するものである。
【００２０】
滑り止めテープの裏面とパレットの滑り止めテープ溶着面との間に存在する溶けた樹脂のパレットの滑り止めテープ溶着面と滑り止めテープの裏面の間からの排出が抑制でき、従って、滑り止めテープが、強固に、パレットの滑り止めテープ溶着面に貼着されることになり、滑り止めテープのパレットの滑り止めテープ溶着面からの剥離を防止することができる。
【図面の簡単な説明】
【図１】図１は合成樹脂製パレット等の垂直断面を含む本発明の合成樹脂製パレットへの滑り止めテープ溶着装置の要部側面図である。
【図２】図２は合成樹脂製パレット等の垂直断面を含む本発明の別の実施例の合成樹脂製パレットへの滑り止めテープ溶着装置の要部側面図である。
【図３】図３は合成樹脂製パレット等の垂直断面を含む本発明の更に別の実施例の合成樹脂製パレットへの滑り止めテープ溶着装置の要部側面図である。
【図４】図４は合成樹脂製パレット等の垂直断面を含む本発明の更なる別の実施例の合成樹脂製パレットへの滑り止めテープ溶着装置の要部側面図である。
【図５】図５は従来の合成樹脂製パレットへの滑り止めテープ溶着装置の要部斜視図である。
【図６】図６は従来の合成樹脂製パレットへの滑り止めテープ溶着装置の要部正面図である。
【図７】図７は合成樹脂製パレット等の垂直断面を含む従来の合成樹脂製パレットへの滑り止めテープ溶着装置の要部側面図である。
【符号の説明】
Ｐ・・・・・・・・パレット
ｐ１・・・・・・・凹溝
Ｔ・・・・・・・・滑り止めテープ
ｔ１・・・・・・・滑り止めテープの裏面
１・・・・・・・・押圧ローラ
３・・・・・・・・熱風噴射機[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a non-slip to a synthetic resin pallet for welding a non-slip tape for preventing slipping of an article placed on the surface of a synthetic resin pallet (hereinafter also simply referred to as “pallet”). The present invention relates to a tape welding apparatus.
[0002]
[Prior art]
Conventionally, hot air is blown to the anti-slip tape weld surface on the surface of the pallet and the back surface of the anti-slip tape to melt the anti-slip tape weld surface on the surface of the pallet and the back surface of the anti-slip tape, 2. Description of the Related Art A non-slip tape welding apparatus for a synthetic resin pallet in which a non-slip tape is welded to the surface of a pallet by being pressed against the surface of the pallet by a pressing roller is known.
[0003]
[Problems to be solved by the invention]
FIG. 5 is a perspective view of a main part of a conventional anti-slip tape welding apparatus to a synthetic resin pallet, FIG. 6 is a front view of the main part of the anti-slip tape welding apparatus to a conventional synthetic resin pallet, and A problem to be solved by the present invention will be described with reference to FIG. 7 which is a side view of a main part of a non-slip tape welding apparatus for a conventional synthetic resin pallet including a vertical section such as a resin pallet.
[0004]
Reference numeral 1 denotes a pressing roller that is rotatably disposed on an appropriate frame (not shown), and reference numeral 2 denotes an eaves-shaped guide member that is disposed near the pressing roller 1 as an example. 3 is a hot-air sprayer that blows hot air onto the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T to melt the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. is there. The non-slip tape T has a cross section perpendicular to the longitudinal direction formed in a substantially rectangular shape that is horizontally long, and the upper part of the anti-slip tape T is located on the surface of the pallet P in a concave groove p1 formed in the pallet P. From, it is comprised so that it may be welded so that it may protrude a little. Therefore, the non-slip tape welding surface of the pallet P is the bottom surface p1 ′ of the groove p1. Reference numeral 4 denotes a pallet transport device for transporting the pallet P such as a belt conveyor. FIG. 6 shows an example in which the pallet P is transported from left to right.
[0005]
The anti-slip tape T is guided by the guide member 2 while the anti-slip tape welded surface of the pallet P being conveyed by the pallet conveying device 4 (as described above, in this example, the bottom surface p1 ′ of the concave groove p1). And the pressing roller 1 are transferred in the direction of the clamping portion C of the anti-slip tape T. Then, hot air is blown by the hot air jet machine 3 on the back surface t1 of the anti-slip tape T coming out of the guide member 2 and the anti-slip tape welding surface of the pallet P, and the anti-slip tape welding surface of the pallet P and the anti-slip tape T The anti-slip tape T is welded to the pallet P being conveyed by the pallet conveying device 4 by melting the back surface t1 of the pallet and pressing the anti-slip tape T against the pallet P by the pressing roller 1.
[0006]
As described above, the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T are melted by the hot air jetting machine 3, and the anti-slip tape T is pressed against the pallet P by the pressing roller 1. The anti-slip tape T is welded to the pallet P. Since the anti-slip tape T is pressed by the pressing roller 1, the anti-slip tape T is melted by the hot air jet 3 and the anti-slip tape welding surface of the pallet P and the anti-slip tape are used. The melted resin existing between the back surface t1 of T is discharged from between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T, and the anti-slip tape welding surface of the pallet P and the anti-slip tape T The amount of the melted resin existing between the back surface t1 is reduced, the sticking force of the anti-slip tape T to the anti-slip tape welding surface of the pallet P is weakened, and the anti-slip tape of the pallet P is reduced. Non-slip tape T from the welding surface there is a problem that is peeled off.
[0007]
An object of the present invention is to solve the problems of the above-described conventional anti-slip tape welding device to a synthetic resin pallet.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention blows hot air to the anti-slip tape welding surface of the pallet and the back surface of the anti-slip tape to melt the anti-slip tape welding surface of the pallet and the back surface of the anti-slip tape. In addition, in the non-slip tape welding apparatus for a synthetic resin pallet in which the anti-slip tape is pressed against the pallet by the pressing roller, the first anti-slip tape for the pallet is welded to the pallet made of synthetic resin. The melted resin that exists between the back surface of the anti-slip tape and the anti-slip tape weld surface of the pallet by applying the pressing force of the pressure roller only to the center between the weld surface and the back surface of the anti-slip tape. intended but configured to prevent the discharged from between the back and the pallet skid tape welding surface of the grip tape Ri, the second, and a sloped surface that the cross-sectional shape perpendicular to the longitudinal direction of the grip tape, inclined downward from the horizontal upper surface central portion and said horizontal upper surface central portion on both sides direction The pressure roller is brought into contact with only the central portion of the upper surface of the anti-slip tape so that the pressure roller is pressed only at the center between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet. By applying pressure, the melted resin that exists between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet is discharged from between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet. is obtained by configured to suppress Rukoto, the third, the rear surface of the grip tape, form inclined upward from the horizontal central portion and said horizontal middle portion at both lateral inclined surfaces And is intended, in the fourth, the outer surface of the press roller to form a flat central portion and said planar central portion toward both sides so as to gradually have an inclined surface whose diameter, longitudinal The back surface of the anti-slip tape and the anti-slipping tape welding surface of the pallet are brought into contact with the central part of the top surface of the anti-slip tape whose cross-sectional shape is a horizontally long rectangle. By applying the pressing force of the pressing roller only to the center between the melted resin existing between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet, It is configured to suppress discharge from between the anti-slip tape welding surface of the pallet . Fifth, the non-slip tape welding surface of the pallet is horizontally arranged at the center in the width direction. As it forms The pressure roller is in contact with the upper surface of the anti-slip tape, which is formed on an inclined surface inclined downward from the horizontal central part toward both ends in the width direction, and the cross-sectional shape perpendicular to the longitudinal direction is a horizontally long rectangle. The back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet are applied only to the central portion between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet. The melted resin existing between the anti-slip tape and the anti-slip tape welding surface of the pallet is prevented from being discharged from between the back surface and the anti-slip tape welding surface of the pallet .
[0009]
【Example】
Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded. In addition, the same code | symbol is used about the same component as the anti-slip | slipping tape welding apparatus to the conventional synthetic resin pallet mentioned above.
[0010]
In the embodiment shown in FIG. 1, the cross-sectional shape perpendicular to the longitudinal direction of the anti-slip tape T is formed in a substantially trapezoidal shape, and the horizontal central portion t2 of the upper surface t2 of the anti-slip tape T. The pressing roller 1 is configured so that the pressing roller 1 is not in contact with the inclined surface t2 ″ inclined downward in the direction of the side surface t3 from the horizontal central portion t2 ′.
[0011]
The melted resin existing between the back surface t1 located below the horizontal central portion t2 ′ of the top surface t2 of the top surface t2 of the antislip tape T that receives the pressing force of the pressing roller 1 and the antiskid tape welding surface of the pallet P is pressed Although it flows in the direction of the side surface t3 due to the pressing force of the roller 1, the inclined portion t2 ″ of the upper surface t2 of the anti-slip tape T is positioned below the inclined surface t2 ″ because it does not receive the pressing force of the pressing roller 1. The melted resin existing between the back surface t1 of the anti-slip tape T and the anti-slip tape welding surface of the pallet P is discharged from between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. Will be suppressed. Thus, the melted resin existing between the back surface t1 located below the horizontal central portion t2 ′ of the upper surface t2 of the anti-slip tape T and the anti-slip tape welding surface of the pallet P becomes the anti-slip of the pallet P. Without being discharged from between the tape welding surface and the back surface t1 of the anti-slip tape T, it remains between the back surface t1 of the anti-slip tape T located below the inclined surface t2 ″ and the anti-slip tape welding surface of the pallet P. Therefore, more melted resin exists between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T, and the anti-slip tape T is firmly attached to the pallet P. Thus, the anti-slip tape T can be prevented from being peeled off from the anti-slipping tape welding surface of the pallet P.
[0012]
As described above, by forming the cross-sectional shape perpendicular to the longitudinal direction of the anti-slip tape T into a substantially trapezoidal shape, the area between the anti-slip tape welded surface of the pallet P and the back surface t1 of the anti-slip tape T is substantially the same. Since the pressing force of the pressing roller 1 is applied only to the central portion, the pressing force of the pressing roller 1 is not applied to the inclined surface t2 ″ of the upper surface t2 of the anti-slip tape T. The molten resin existing between the back surface t1 of the pallet P and the anti-slip tape welding surface of the pallet P is prevented from being discharged between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. Even if the reverse side of the anti-slip tape T shown in FIG. 1 is reversed and the cross-sectional shape perpendicular to the longitudinal direction of the anti-slip tape T is formed in an inverted trapezoidal shape, as described above, the pallet P Anti-slip tape welding And only a substantially central portion between the back surface t1 of grip tape T, it is possible to act a pressing force of the pressing roller 1.
[0013]
In the embodiment shown in FIG. 2, the cross-sectional shape perpendicular to the longitudinal direction shown in FIG. 1 has a horizontal central portion t1 ′ also on the back surface t1 of the substantially trapezoidal antiskid tape T. An inclined surface t1 ″ inclined upward in the direction of the side surface t3 from the bottom surface, and an inclined surface of the bottom surface p1 ′ of the concave groove p1 which is the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. A wedge-shaped slit t4 is formed between t1 ″. Thus, since the inclined surface t1 ″ inclined upward in the direction of the side surface t3 from the horizontal central portion t1 ′ is also formed on the back surface t1 of the anti-slip tape T, as described above, the anti-slip of the pallet P The pressing force of the pressure roller 1 acts only on the substantially central portion between the tape welding surface and the back surface t1 of the anti-slip tape T, and the anti-slip tape welding surface of the melted resin pallet P and the back surface of the anti-slip tape T. The discharge from t1 is suppressed, and the wedge-shaped slit t4 formed between the anti-slip tape welding surface of the pallet P and the inclined surface t1 ″ of the back surface t1 of the anti-slip tape T is inserted into the wedge-shaped slit t4. The melted resin that flows in the direction of the side surface t3 of the anti-slip tape T from the substantially central portion between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T is accumulated by the pressing force. The discharge from between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T is further suppressed. Therefore, more melted resin exists between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T, and the anti-slip tape T is firmly attached to the pallet P. It will be affixed on the tape welding surface, and peeling of the anti-slip tape T from the anti-slipping tape welding surface of the pallet P can be more effectively prevented.
[0014]
In the embodiment shown in FIG. 3, a cross-sectional shape perpendicular to the longitudinal direction of the anti-slip tape T is formed in a horizontally long substantially rectangular shape like the conventional anti-slip tape T. In this case, only the central portion 1a ′ of the peripheral surface of the pressure roller 1 is provided so that the peripheral surface 1a of the pressure roller 1 does not contact the entire width of the upper surface t2 of the anti-slip tape T. In addition to being formed flat, an inclined surface 1a ″ that gradually decreases in diameter from the central portion 1a ′ toward both side surfaces 1b of the pressing roller 1 is formed, and the pressing roller 1 is formed in a substantially barrel shape. Further, on both sides of the flat central portion 1a ′ of the peripheral surface of the pressing roller 1, inclined surfaces 1a ″ gradually decreasing in diameter from the central portion 1a ′ toward the both side surfaces 1b of the pressing roller 1 are formed. Of anti-slip tape welding surface and anti-slip tape T Since the pressing force of the pressing roller 1 acts only on the substantially central portion between the back surfaces t1, the pressing force of the pressing roller 1 does not act in the vicinity of both ends of the anti-slip tape T that does not contact the pressing roller 1. The melted resin existing between the back surface t1 of the non-slip tape T and the anti-slip tape weld surface of the pallet P is prevented from being discharged from between the anti-slip tape weld surface of the pallet P and the back surface t1 of the anti-slip tape T. Will be.
[0015]
The embodiment shown in FIG. 4 is similar to the embodiment shown in FIG. 3 in that the cross-sectional shape perpendicular to the longitudinal direction of the anti-slip tape T is the same as that of the conventional anti-slip tape T. A horizontally long, substantially rectangular shape is used, and the pressing roller 1 is formed in a cylindrical shape as in the prior art so that the peripheral surface 1a is in contact with the entire width of the upper surface t2 of the anti-slip tape T. This is the case. And only the center part p2 of the width direction of the bottom face p1 'of the ditch | groove p1 which is the anti-slip | slipping tape welding surface of the pallet P is formed horizontally, and the bottom face p1' of the ditch | groove p1 is made into the bottom face from the center part p2. The inclined surface p3 which inclines below toward the both ends of the width direction of p1 'is formed. In this way, only the central portion p2 in the width direction of the bottom surface p1 ′ of the concave groove p1 that is the anti-slip tape welding surface of the pallet P is formed horizontally, and the bottom surface p1 ′ of the concave groove p1 is formed from the central portion p2. Since the inclined surface p3 that is inclined downward toward both ends in the width direction of the bottom surface p1 ′ is formed, only at the substantially central portion between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T, The pressing force of the pressing roller 1 acts, and the pressing force of the pressing roller 1 does not act in the vicinity of both ends of the anti-slip tape T that does not contact the pressing roller 1. Accordingly, the molten resin existing between the back surface t1 of the anti-slip tape T and the anti-slip tape welding surface of the pallet P is discharged from between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. It is suppressed.
[0016]
As described above, the non-slip tape that does not come into contact with the pressing roller 1 because the pressing force of the pressing roller 1 acts only on the substantially central portion between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. Since the pressing force of the pressing roller 1 does not act near both ends of T, the pallet of melted resin existing between the back surface t1 of the anti-slip tape T and the anti-slip tape welding surface of the pallet P Ejection from between the non-slip tape welding surface of P and the back surface t1 of the anti-slip tape T is suppressed, and therefore, there is more between the anti-slipping tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. The melted resin will be present, and the non-slip tape T will be firmly attached to the anti-slip tape welding surface of the pallet P. It is possible to prevent peeling from the surface.
[0017]
The width of the central portion between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T on which the pressing force of the pressing roller 1 acts is about 1/4 to 3/4 of the width of the anti-slip tape T. It is preferable that When the width of the central portion between the anti-slipping tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T, on which the pressing force of the pressing roller 1 acts, exceeds approximately 3/4 of the width of the anti-slip tape T, Most of the melted resin existing between the back surface t1 of the non-slip tape T and the anti-slip tape weld surface of the pallet P is discharged from between the anti-slip tape weld surface of the pallet P and the back surface t1 of the anti-slip tape T. As a result, the adhesion strength between the anti-slip tape T and the pallet P decreases. Further, the width of the central portion between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T on which the pressing force of the pressing roller 1 acts is less than about 1/4 of the width of the anti-slip tape T. Then, the pressing force between the back surface t1 of the anti-slip tape T and the anti-slip tape welding surface of the pallet P by the pressing roller 1 becomes too small, and the adhesion strength between the anti-slip tape T and the pallet P decreases. .
[0018]
Hot air is blown by the hot air jet 3 to melt the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. The hot air from the hot air jet 3 is applied to the anti-slip tape welding surface of the pallet P. The anti-slip of the pallet P effectively hits the center part in the width direction of the back surface t1 of the anti-slip tape T and collides with the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. The center part in the width direction of the tape welding surface and the back surface t1 of the anti-slip tape T is melted, but the vicinity of the end portion in the width direction of the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T is hot air jet 3 Since the hot air from the air blows to the side, the vicinity of the end in the width direction of the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T may not be sufficiently melted. Attaching strength of the vicinity of the end portion in the width direction of the flop T is weak, a problem of peeling from this portion, there is the grip tape welding apparatus to a conventional synthetic resin pallet. However, in this embodiment, the pressing force of the pressing roller 1 is applied only to the substantially central portion between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. From the substantially central portion between the anti-slipping tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T, more resin melted in the central portion in the width direction of the back surface t1 of the anti-slip tape T and the anti-slip tape T, Since the melt flows in the vicinity of the end in the width direction where the melting is insufficient, the melted resin spreads over the entire area between the anti-slip tape welding surface of the pallet P and the back surface t1 of the anti-slip tape T. The tape T is firmly attached to the anti-slip tape welding surface of the pallet P.
[0019]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be achieved.
[0020]
The discharge of melted resin between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet can be prevented from discharging between the anti-slip tape welding surface of the pallet and the back surface of the anti-slip tape. However, it is firmly attached to the anti-slipping tape welding surface of the pallet, and the anti-slipping tape can be prevented from peeling from the anti-slipping tape welding surface of the pallet.
[Brief description of the drawings]
FIG. 1 is a side view of an essential part of a non-slip tape welding device for a synthetic resin pallet according to the present invention including a vertical cross section of a synthetic resin pallet or the like.
FIG. 2 is a side view of an essential part of a non-slip tape welding apparatus for a synthetic resin pallet according to another embodiment of the present invention including a vertical section of a synthetic resin pallet or the like.
FIG. 3 is a side view of an essential part of a non-slip tape welding apparatus for a synthetic resin pallet according to still another embodiment of the present invention including a vertical cross section of a synthetic resin pallet or the like.
FIG. 4 is a side view of an essential part of a non-slip tape welding apparatus for a synthetic resin pallet according to still another embodiment of the present invention including a vertical section of a synthetic resin pallet or the like.
FIG. 5 is a perspective view of an essential part of a conventional anti-slip tape welding apparatus to a synthetic resin pallet.
FIG. 6 is a front view of an essential part of a conventional anti-slip tape welding apparatus to a synthetic resin pallet.
FIG. 7 is a side view of an essential part of a conventional anti-slip tape welding apparatus to a synthetic resin pallet including a vertical section of a synthetic resin pallet or the like.
[Explanation of symbols]
P ... Pallet p1 ... Dove groove T ... Anti-slip tape t1, ... Back side of the anti-slip tape 1 ... .... Pressing roller 3 ..... Hot air jet machine

Claims

Hot air is blown to the anti-slip tape welding surface of the pallet and the back surface of the anti-slip tape to melt the anti-slip tape welding surface of the pallet and the back surface of the anti-slip tape, and the anti-slip tape is pressed against the pallet by the pressure roller. In the anti-slip tape welding device to the synthetic resin pallet, where non-slip tape is welded to the pallet, press only on the center part between the anti-slipping tape welding surface of the pallet and the back surface of the anti-slip tape. By applying the pressing force of the roller, the molten resin existing between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet is removed between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet. grip tape welded to the synthetic resin pallet, characterized by being configured so as to prevent the discharged from Location.

The cross-sectional shape perpendicular to the longitudinal direction of the anti-slip tape is formed to have a horizontal upper surface central portion and an inclined surface inclined downward from the horizontal upper surface central portion in the direction of both sides, thereby preventing the slip. By bringing the pressing roller into contact with only the horizontal upper central portion of the tape, and by applying the pressing force of the pressing roller only to the central portion between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet, To prevent molten resin existing between the back surface of the non-slip tape and the anti-slip tape welding surface of the pallet from being discharged from between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet The non- slip tape welding device to the synthetic resin pallet according to claim 1, wherein the device is configured as described above.

3. The synthetic resin pallet according to claim 2, wherein the back surface of the non- slip tape is formed with a horizontal central portion and an inclined surface inclined upward in the direction of both sides from the horizontal central portion . Non-slip tape welding device.

The peripheral surface of the pressing roller is formed to have a flat central portion and an inclined surface having a gradually decreasing diameter from the flat central portion toward both side surfaces, and the cross-sectional shape perpendicular to the longitudinal direction is horizontally long. Only the flat central part of the pressure roller is in contact with the central part of the top surface of the anti-slip tape which is rectangular, and only the central part between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet is pressed. By applying the pressing force of the roller, the melted resin existing between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet is formed between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet. The non- slip tape welding apparatus to the synthetic resin pallet according to claim 1, wherein the apparatus is configured to suppress discharge from the space.

The anti-slipping tape welding surface of the pallet is formed on the inclined surface inclined downward from the horizontal central portion toward both ends in the width direction, while forming the horizontal central portion horizontally with respect to the longitudinal direction. The pressing roller is brought into contact with the top surface of the non-slip tape whose vertical cross-sectional shape is a horizontally long rectangle, and the pressing roller is pressed only at the center between the back surface of the anti-slip tape and the anti-slipping tape welding surface of the pallet. By applying pressure, the melted resin existing between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet is discharged from between the back surface of the anti-slip tape and the anti-slip tape welding surface of the pallet. The anti-slip tape welding device to the synthetic resin pallet according to claim 1, wherein the anti-slip tape welding device is configured to suppress the occurrence.