JP3194171U - Thermal paper core - Google Patents
Thermal paper core Download PDFInfo
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- JP3194171U JP3194171U JP2014004612U JP2014004612U JP3194171U JP 3194171 U JP3194171 U JP 3194171U JP 2014004612 U JP2014004612 U JP 2014004612U JP 2014004612 U JP2014004612 U JP 2014004612U JP 3194171 U JP3194171 U JP 3194171U
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- core
- thermal paper
- paper
- arc body
- circular arc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
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Abstract
【課題】感熱紙のロールから巻芯が抜ける巻芯抜けや、感熱紙の巻き緩みが生じることを防止する感熱紙用巻芯を提供する。【解決手段】円筒を中心軸に沿って複数に分割した円弧体１が嵌合して形成される巻芯であり、円弧体１は熱可塑性樹脂からなる。熱可塑性樹脂は紙管と異なり、乾燥による収縮が生じないので、時間経過や湿度の変化などによって巻芯の抜けや巻き緩みが生じない。また、円筒の両端に板状のリング部４を設け、印刷機との勘合用の凹部を形成するので、円筒の肉厚を薄くしても、従来の紙管と同じように印刷機に感熱紙ロールを取付けることができる。【選択図】図１The present invention provides a thermal paper core that prevents the core from coming off from the roll of thermal paper and the loosening of the thermal paper from occurring. A winding core is formed by fitting a circular arc body 1 divided into a plurality of cylinders along a central axis. The circular arc body 1 is made of a thermoplastic resin. Unlike the paper tube, the thermoplastic resin does not shrink due to drying, so that the core does not come off or loosen due to changes in time or humidity. In addition, plate-like ring portions 4 are provided at both ends of the cylinder to form recesses for mating with the printing press. A paper roll can be installed. [Selection] Figure 1
Description
本考案は、感熱紙用の巻芯に関するものである。 The present invention relates to a core for thermal paper.
印刷機に用いられる感熱紙には、紙管を巻芯としこれに数百ｍの長さの感熱紙を巻いたロール紙が用いられている。このような感熱紙用の巻芯は、特許文献１に開示されている。
As thermal paper used in a printing press, roll paper is used in which a paper tube is used as a winding core and thermal paper having a length of several hundred meters is wound around the core. Such a core for thermal paper is disclosed in
巻芯に用いる紙管は、含有する水分量によって膨張、収縮するため、製造後の時間経過、湿度変化などにより紙管が乾燥して収縮すると、紙管がロールから抜ける巻芯抜けや、感熱紙の巻き緩みが生じる。 Since the paper tube used for the core expands and contracts depending on the amount of water contained, if the paper tube dries and shrinks due to the passage of time or changes in humidity after the manufacture, the core will come off the roll, or heat sensitive. Paper loosening occurs.
従来、巻芯抜けや巻き緩みの防止対策として、紙管の水分量を一定量以下に管理する、紙管に感熱紙の端部を接着固定する、感熱紙の巻圧を高くするなどの対策が行われている。しかし、これらの対策は製造工数の増加からコストアップを招き、また紙管に含まれる水分量は天候によっても左右されるため、巻芯抜けや巻き緩みを十分に防止できるまでには至っていない。 Conventionally, as measures to prevent unwinding and loosening of the core, measures such as controlling the moisture content of the paper tube below a certain level, bonding and fixing the edge of the thermal paper to the paper tube, and increasing the winding pressure of the thermal paper, etc. Has been done. However, these measures cause an increase in cost due to an increase in the number of manufacturing steps, and the amount of moisture contained in the paper tube is also affected by the weather.
また、環境負荷低減の面から巻芯の再使用が求められている。しかし、損傷し易い紙管を何度も繰り返し使用することは、品質の維持などの面から難しい。 Moreover, the reuse of a core is calculated | required from the surface of environmental load reduction. However, it is difficult to repeatedly use the easily damaged paper tube from the viewpoint of maintaining the quality.
本考案はこのような事情に鑑みてなされたものであり、その目的は、時間経過や湿度の変化によって巻芯抜けや巻き緩みが発生せず、また繰り返し使用ができる感熱紙用巻芯を提供することを目的とする。 The present invention has been made in view of such circumstances, and an object thereof is to provide a thermal paper core that can be used repeatedly without causing the core to drop or loosen due to changes in time or humidity. The purpose is to do.
上記課題を解決するために、本考案の感熱紙用巻芯は円筒を中心軸に沿って複数に分割した円弧体が嵌合して形成され、前記円弧体が熱可塑性樹脂からなることを特徴とする。
この構成によれば、円弧体は熱可塑性樹脂からなるため、紙のような吸水量の変化による膨張、収縮が生じず、時間経過や湿度の変化によって感熱紙ロールから巻芯が抜けたり、感熱紙の巻き緩みが発生しない。また、熱可塑性樹脂からなるため使用後の巻芯を再使用することができる。さらに、円筒を複数の円弧体に分割して運搬、保管ができる。
In order to solve the above-mentioned problems, the thermal paper core of the present invention is formed by fitting a circular arc body divided into a plurality of cylinders along a central axis, and the circular arc body is made of a thermoplastic resin. And
According to this configuration, since the circular arc body is made of a thermoplastic resin, expansion and contraction due to a change in water absorption amount, such as paper, does not occur, and the winding core comes off from the thermal paper roll due to a change in time or humidity. No loose winding of paper occurs. Moreover, since it consists of a thermoplastic resin, the used core can be reused. Furthermore, a cylinder can be divided into a plurality of arcs and transported and stored.
上記構成において、前記円弧体の表面には１μｍ〜１００μｍの凹凸が形成されていることを特徴とする。
表面に形成された凹凸が感熱紙との摩擦抵抗を大きくするため、感熱紙の巻きすべりを防止し、巻芯の抜け防止の効果をさらに高める。
The said structure WHEREIN: The unevenness | corrugation of 1 micrometer-100 micrometers is formed in the surface of the said circular arc body, It is characterized by the above-mentioned.
The unevenness formed on the surface increases the frictional resistance with the thermal paper, thereby preventing the thermal paper from slipping and further enhancing the effect of preventing the core from coming off.
上記構成において、前記円弧体の内側には、前記中心軸と垂直な円弧状リブと、前記中心軸と平行な直線状リブとが形成されていることを特徴とする。
円弧状リブと直線状リブを設けることにより、巻芯の肉厚を薄くして軽量化しても強度が保たれるため、感熱紙の巻圧を高くしても巻芯が潰れることはない。また、円筒の長さが長くなっても巻芯の変形を防止できる。
In the above configuration, an arc-shaped rib perpendicular to the center axis and a linear rib parallel to the center axis are formed inside the arc body.
By providing the arc-shaped ribs and the linear ribs, the strength is maintained even if the thickness of the core is reduced and the weight is reduced, so that the core is not crushed even if the winding pressure of the thermal paper is increased. Moreover, even if the length of the cylinder is increased, the deformation of the winding core can be prevented.
上記構成において、前記円筒の両端部には、外径が前記円筒の外径と等しい板状のリング部が設けられ、前記リング部には第１の平坦部と前記第１の平坦部と略平行で前記第１の平坦部から窪んだ位置にある第２の平坦部を有する凹部が設けられていることを特徴とする。
本考案の感熱紙用巻芯は、従来の紙管の巻芯を使用していた印刷機に取り付けられる。印刷機に嵌合させる凹部を板状のリング部に設けることにより、円筒部分の肉厚が従来の紙管の肉厚より薄くなっても、板状のリング部の幅を紙管の肉厚と同程度に調整すれば、印刷機側の設定を変えることなく、紙管と同じように感熱紙用巻芯を取付けることができる。
また、薄い肉厚とした円筒部分が印刷機との嵌合部にはならないので、繰り返し使用しても磨耗によってガタが生じることがない。
さらに、板状のリング部に印字、シールの貼り付けなどを行い、製品の情報を表示することができる。
The said structure WHEREIN: The plate-shaped ring part whose outer diameter is equal to the outer diameter of the said cylinder is provided in the both ends of the said cylinder, and the said flat part is substantially the 1st flat part and the said 1st flat part. A concave portion having a second flat portion that is parallel and recessed from the first flat portion is provided.
The thermal paper core of the present invention is attached to a printing machine that uses a conventional core of a paper tube. Even if the thickness of the cylindrical part becomes thinner than the thickness of the conventional paper tube by providing the concave part to be fitted to the printing machine in the plate-shaped ring part, the width of the plate-shaped ring part is the thickness of the paper tube. If it is adjusted to the same level, the thermal paper core can be attached in the same way as the paper tube without changing the setting on the printing press.
In addition, since the thin cylindrical portion does not become a fitting portion with the printing press, backlash does not occur due to wear even when used repeatedly.
Further, product information can be displayed by printing, sticking a sticker or the like on the plate-shaped ring portion.
本考案によれば、感熱紙用巻芯が時間経過や湿度の変化によって膨張、収縮することがないため、巻芯抜けや巻き緩みの発生を防止できる。また、巻芯を繰り返し使用することを可能とする。 According to the present invention, since the thermal paper core does not expand or contract with the passage of time or humidity, it is possible to prevent the occurrence of loosening or loosening of the core. In addition, the core can be used repeatedly.
以下、本考案の第１実施形態について、図面に基づいて説明する。図１は本考案の実施形態の感熱紙用巻芯を円弧体に分解した状態を示す斜視図であり、図２は円筒の端部を拡大した図である。 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which a thermal paper core according to an embodiment of the present invention is disassembled into arcuate bodies, and FIG. 2 is an enlarged view of an end of a cylinder.
第１実施形態の感熱紙用巻芯は、円筒形状を中心軸に沿って２分割した２つの同一形状の円弧体１が嵌合して形成されている。円弧体は熱可塑性樹脂からなり、熱可塑性樹脂としては、例えばポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリ塩化ビニル（ＰＶＣ）、ＡＢＳ樹脂等を用いることができるが、巻芯の強度、軽量化、コストなどの点からポリプロピレンが好ましい。
The thermal paper core according to the first embodiment is formed by fitting two
感熱紙が巻かれる円弧体の表面には、樹脂成型時にシボ加工により１μｍ〜１００μｍの凹凸が形成されている。 Irregularities of 1 μm to 100 μm are formed on the surface of the circular arc body around which the thermal paper is wound, by a texture process during resin molding.
第１実施形態の感熱紙用巻芯は、円弧体の内側に円筒の中心軸に垂直な円弧状リブ２と、中心軸と平行な直線状リブ３が形成されている。これらのリブを設けることにより、巻芯の強度を保ちながら感熱用巻芯の肉厚を薄くし軽量化できる。
In the thermal paper core of the first embodiment, an arc-
さらに、第１実施形態の感熱紙用巻芯は、円筒の両端に外径が円筒の外径と等しい板状のリング部４が設けられている。板状のリング部４は第１の平坦部分５と、第１の平坦部と略平行で第１平坦部から窪んだ位置にある第２の平坦部６を有する凹部が設けてあり、この凹部が印刷機などの巻芯保持部と嵌合する構造となっている。
Furthermore, the thermal paper core of the first embodiment is provided with plate-like ring portions 4 having an outer diameter equal to the outer diameter of the cylinder at both ends of the cylinder. The plate-like ring portion 4 is provided with a concave portion having a first
印刷機に嵌合させる凹部を板状のリング部４に設けることにより、円筒部分の肉厚が従来の紙管の肉厚より薄くなっても、板状のリング部４の幅を紙管の肉厚と同程度に調整し、印刷機側の設定を変えることなく、紙管と同じように感熱紙用巻芯を取付けることができる。 By providing the plate-like ring portion 4 with a recess to be fitted to the printing press, the width of the plate-like ring portion 4 can be reduced to that of the paper tube even if the thickness of the cylindrical portion is thinner than that of the conventional paper tube. The thermal paper core can be attached in the same way as a paper tube without adjusting the setting on the printing machine side, with the same adjustment as the wall thickness.
第１実施形態の感熱紙用巻芯は、使用後に２つの円弧体に分割することができ、感熱紙用巻芯の運搬や保管のスペースを削減できる。 The thermal paper core of the first embodiment can be divided into two arcs after use, and the space for transporting and storing the thermal paper core can be reduced.
以上、本考案の好ましい実施形態について述べたが、本考案は既述の実施形態に限定されるものではなく、その要旨の範囲内において、各種の変更及び変形が可能である。 As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to above-mentioned embodiment, In the range of the summary, various changes and deformation | transformation are possible.
１ 円弧体
２ 円弧状リブ
３ 直線状リブ
４ リング部
５ 第１の平坦部
６ 第２の平坦部
DESCRIPTION OF
Claims (4)
A plate-shaped ring portion having an outer diameter equal to the outer diameter of the cylinder is provided at both ends of the cylinder, and the ring portion is substantially parallel to the first flat portion and the first flat portion, and The core for thermal paper according to any one of claims 1 to 3, wherein a concave portion having a second flat portion at a position recessed from the flat portion of 1 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014004612U JP3194171U (en) | 2014-08-29 | 2014-08-29 | Thermal paper core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014004612U JP3194171U (en) | 2014-08-29 | 2014-08-29 | Thermal paper core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3194171U true JP3194171U (en) | 2014-11-06 |
Family
ID=51943652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014004612U Expired - Fee Related JP3194171U (en) | 2014-08-29 | 2014-08-29 | Thermal paper core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3194171U (en) |
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2014
- 2014-08-29 JP JP2014004612U patent/JP3194171U/en not_active Expired - Fee Related
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