JPH0788082B2 - Method for forming the end of a paper cylinder - Google Patents
Method for forming the end of a paper cylinderInfo
- Publication number
- JPH0788082B2 JPH0788082B2 JP62182250A JP18225087A JPH0788082B2 JP H0788082 B2 JPH0788082 B2 JP H0788082B2 JP 62182250 A JP62182250 A JP 62182250A JP 18225087 A JP18225087 A JP 18225087A JP H0788082 B2 JPH0788082 B2 JP H0788082B2
- Authority
- JP
- Japan
- Prior art keywords
- thin
- thickness
- tubular portion
- medium
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
-
- 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
- B65H75/185—End caps, plugs or adapters
- B65H75/187—Reinforcing end caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Making Paper Articles (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、紙製の筒状体の端部を形成する方法に関すも
のであり、更に詳細には積層して成る紙筒の端部が取扱
中に破損することを抑制した紙製筒状体の端部形成方法
に関するものである。Description: TECHNICAL FIELD The present invention relates to a method of forming an end portion of a paper tubular body, and more specifically, an end portion of a paper tube formed by stacking the paper tubular body. The present invention relates to a method for forming an end portion of a paper tubular body that suppresses damage during handling.
各種糸条の巻取り用、合成樹脂フィルムの巻取り用など
に使用するボビンないしコアには、巻取る糸やフィルム
に悪影響を与えず、軽量で取扱いが容易であり、更に安
価であるなどの理由で紙製のボビンが使用されているこ
とはよく知られている。For bobbins or cores used for winding various yarns, winding synthetic resin films, etc., do not adversely affect the winding yarns and films, are lightweight, easy to handle, and cheaper. It is well known that paper bobbins are used for reasons.
この紙製のボビンは、クラフト紙などの厚紙をマンドレ
ル上に螺旋状に何層にも巻いて積層体とした紙筒から成
るものである。したがって、単に所定の長さに輪切りに
したものをボビンとして使用すると、高速回転させた際
の遠心力、空気抵抗などの影響や、紙の吸湿作用で、積
層間の接着力の弱い部分に剥離が起り、ボビンないしコ
アの変形、強度低下などを起すと共に、前記剥離などの
際に紙筒の材料である紙が細片となって飛散るという問
題がある。This paper bobbin is composed of a paper tube which is a stack of cardboard such as kraft paper spirally wound on a mandrel in multiple layers. Therefore, if you simply use a bobbin that is sliced into a predetermined length, the bobbin will be peeled to the part where the adhesive force between the stacks is weak due to the influence of centrifugal force, air resistance, etc. when rotating at high speed and the moisture absorption of the paper. Occurs, which causes deformation of the bobbin or core, reduction in strength, and the like, and the paper, which is the material of the paper tube, is scattered into small pieces at the time of peeling.
ボビンないしコアが巻取り中に飛散った前記細片は、静
電気や気流によって巻取られる糸やフィルムに付着する
と、糸の染めむらや、フィルムのコーティングむらや、
印刷むらを起すという問題を発生させる。When the bobbin or the core is scattered during winding, the strips adhere to threads or films that are wound by static electricity or air flow, resulting in uneven dyeing of the threads or uneven coating of the film,
It causes a problem of uneven printing.
そこで、紙筒の端部を折返して積層部分が露出しないよ
うにすることが従来から行われているが、積層体を折り
返すと紙間にずれ応力による剥離が起るという問題と、
内周面に段差が付き内径が小さくなる。したがって、前
記輪切りとして積層面を露出したままの紙筒による従来
のボビンに使用していたキャップソケット、フランジキ
ャップ、軸受けなどの補助部材を新しい仕様に変更しな
ければならないという問題がある。Therefore, it has been conventionally performed to fold the end portion of the paper tube to prevent the laminated portion from being exposed, but when the laminated body is folded, the problem that peeling occurs due to a shear stress between the sheets,
There is a step on the inner peripheral surface and the inner diameter becomes smaller. Therefore, there is a problem in that auxiliary members such as a cap socket, a flange cap, and a bearing, which have been used in a conventional bobbin having a paper cylinder whose laminated surface is exposed as the slicer, have to be changed to new specifications.
この問題を解消するために、前記折り返す部分の肉を薄
く削り、折り返して重ね合せる中側を斜面状に削り、重
ね合せた際段差ができないように強い力で圧接するか、
段差部分を削って内径を調整することも行われている。
しかしながら前者は工程管理が厄介であり、後者は積層
部分が木目状に露出し新たな問題を起すという欠点があ
り、なお改善の必要がある。In order to solve this problem, the meat of the folded back part is shaved thinly, the inner side to be folded back and overlapped is cut into a slope shape, or when pressed with a strong force so that there is no step when superposed,
It is also practiced to trim the stepped portion to adjust the inner diameter.
However, the former has a drawback that the process control is troublesome, and the latter has a drawback that the laminated portion is exposed in a grain pattern, which causes a new problem, and further improvement is required.
本発明は、以上の問題に鑑み成されたものであり、積層
体から成る紙製筒状体の端部形成方法において、少ない
工程で、積層面が露出せず、しかも筒の内面に段差ので
きない端部を形成する加工方法を提供することを目的と
している。The present invention has been made in view of the above problems, and in a method for forming an end portion of a paper tubular body made of a laminated body, the laminated surface is not exposed in a few steps, and a step is formed on the inner surface of the cylinder. It is an object of the present invention to provide a processing method for forming a non-end portion.
以上の目的を達成するための本発明の紙製筒状体の端部
形成方法の構成は、紙を積層して得た筒状体の内面を端
部から筒の奥にかけて同心円状に切除するに当たって、
端部寄りを深く、筒の奥を浅く２段に切除して、肉薄筒
部と、中肉厚筒部と、この肉薄筒部と中肉厚筒部の間の
段差部端面とを形成し、肉薄筒部を肉薄筒部と段差部端
面との接線から中肉厚筒部にかけて内側に、２段階的
に、又は折返し部分の断面が円弧状になる如く、徐々に
折り返して、肉薄筒部を段差部端面と中肉厚筒部に重ね
合わせ、前記浅く切除した切除分の厚さと肉薄筒部の肉
厚とを同様の厚さにしたことを特徴とするものである。The configuration of the method for forming an end portion of a paper tubular body of the present invention to achieve the above object is to cut the inner surface of a tubular body obtained by stacking paper into concentric circles from the end portion to the back of the tube. When hitting
The end portion is deeply cut, and the inner part of the cylinder is cut shallowly into two steps to form a thin-walled tubular portion, a medium-thickness tubular portion, and an end surface of a step portion between the thin-walled tubular portion and the medium-thickness tubular portion. , The thin tubular portion is gradually folded inward in two steps from the tangent line between the thin tubular portion and the end face of the step portion to the medium thick tubular portion, or gradually so that the folded portion has an arc-shaped cross section, Is superposed on the end face of the step portion and the medium-thickness tubular portion, and the thickness of the thinly cut portion and the thin-walled tubular portion have the same thickness.
前記切除部分に設けた段差部分は、階段状に設けてもよ
いが、該段差部分の筒の半径方向断面形状に丸味を持た
せるようにしてもよい。後者の手段は、前記折り返す際
に材料が折れ曲る危険がないので材料を損傷させること
がなく、しかも内部に空間部分ができないので端部強度
を高めることができる。又、前記の肉薄部分の厚さは、
折り返す際に積層体の層間剥離が起らない厚さとすれば
よく、２層としてもよいが、そのため折り返し層の強度
が低下することは好ましくない。The stepped portion provided in the cutout portion may be provided in a stepped shape, but the radial cross-sectional shape of the cylinder of the stepped portion may be rounded. The latter means does not damage the material when it is folded back, and thus does not damage the material. Further, since there is no space inside, the end strength can be increased. Also, the thickness of the thin portion is
The laminate may have a thickness such that delamination of the laminate does not occur at the time of folding back, but it may be two layers, but it is not preferable that the strength of the folding layer lowers.
前記重ね合せ部の固定は、単に圧接してもよく、また接
着によって固着強度を向上させてもよい。The overlapping portion may be fixed simply by pressure contact, or the adhesion strength may be improved by adhesion.
以下添付の図面を対照して一実施例により本考案を具体
的に説明する。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings according to an embodiment.
第１図及び第２図は、本実施例の加工工程を説明するた
めの要部を破断して示した部分側面図である。図は厚紙
を積層して肉厚とした紙筒１の端部付近を示しており、
第１図は、該筒１を回転しながら切削することにより２
段に内部を切除して中肉厚筒部２及び肉薄筒部３を形成
した状態を示している。FIG. 1 and FIG. 2 are partial side views in which a main part for illustrating the processing step of the present embodiment is cut away. The figure shows the vicinity of the end of the paper cylinder 1 made by stacking thick paper,
FIG. 1 shows that by cutting the cylinder 1 while rotating it,
It shows a state in which the middle thick-walled tubular portion 2 and the thin-walled tubular portion 3 are formed by cutting the inside of the step.
第１図の点線による斜線部分４は、筒１の切除部分であ
り、本実施例は、中肉厚筒部２の切除肉厚d1と、肉薄筒
部３の肉厚d2とを等しい厚さに切削加工し、図の矢印の
方向に肉薄筒部３を折り返して中肉厚筒部２の内面に重
ね合せて接着し、重ね合わせた部分の内径を筒状体の内
径と一致させて、第２図のごとく筒１の端部を形成す
る。A shaded portion 4 by a dotted line in FIG. 1 is a cut portion of the cylinder 1, and in this embodiment, the cut thickness d 1 of the medium-thickness tubular portion 2 and the thickness d 2 of the thin-walled tubular portion 3 are equal. Cut to a thickness, fold back the thin-walled tubular portion 3 in the direction of the arrow in the figure, and stack and adhere it to the inner surface of the medium-thickness tubular portion 2 so that the inner diameter of the overlapped portion matches the inner diameter of the tubular body. As shown in FIG. 2, the end portion of the cylinder 1 is formed.
前記のとおり肉薄筒部３を折り返したために、積層面が
露出する端面５（第１図参照）が前記肉薄筒部３で覆わ
れる。したっがって、本実施例の紙筒１は、高速回転、
吸湿などによって積層部の剥離、変形などの防止、端部
の強度の向上が得られる。本実施例では、肉薄筒部３と
端面５との間に空隙６を作り端部形状に丸味を持たせる
ようにしたが、肉薄筒部３を肉薄筒部３と段差部端面５
との接線から中肉厚筒部２にかけて、90℃ずつ２段階的
に折り返して、肉薄筒部３を段差部端面５と中肉厚筒部
２に重ね合わせ密着させて平に仕上げてもよい。Since the thin tubular portion 3 is folded back as described above, the end surface 5 (see FIG. 1) where the laminated surface is exposed is covered with the thin tubular portion 3. Therefore, the paper tube 1 of the present embodiment rotates at high speed,
It is possible to prevent peeling and deformation of the laminated portion due to moisture absorption and improve the strength of the end portion. In the present embodiment, the gap 6 is formed between the thin cylindrical portion 3 and the end surface 5 so that the end shape is rounded. However, the thin cylindrical portion 3 is formed into the thin cylindrical portion 3 and the step end surface 5.
From the tangent line to and to the medium-thickness tubular portion 2, the thin-walled tubular portion 3 may be folded back in two steps at 90 ° C., and the thin-walled tubular portion 3 may be superposed on the end surface 5 of the step portion and the medium-thickness tubular portion 2 to be in close contact with each other to be finished flat. .
第３図及び第４図は、別の実施例を説明するための部分
断面図であり、それぞれ第１図及び第２図に対応する部
分を示している。第３図において、中肉厚筒部２と肉薄
筒部３との間の段差部端面５は、半径方向断面を円弧状
に形成したものである。そして、肉薄筒部３を肉薄筒部
３と段差部端面５との接線から中肉厚筒部２にかけて内
側に、折返し部分の断面が円弧状になる如く、徐々に折
り返し、肉薄筒部３を段差部端面５と中肉厚筒部２に重
ね合わせると第４図を得ることができる。この実施例で
は、第４図によって明らかなとおり、肉薄筒部３の中側
面と端面５とが密着するので、高い端面強度、変形抵抗
性のある丸味のある端部を形成することかできる。FIG. 3 and FIG. 4 are partial cross-sectional views for explaining another embodiment, and show the portions corresponding to FIG. 1 and FIG. 2, respectively. In FIG. 3, the step portion end surface 5 between the medium-thickness tubular portion 2 and the thin-walled tubular portion 3 has a radial cross section formed in an arc shape. Then, the thin-walled tubular portion 3 is gradually folded back inward from the tangent line between the thin-walled tubular portion 3 and the end surface 5 of the step portion to the medium-thickness tubular portion 2, so that the folded-back portion has an arc-shaped cross section, and the thin-walled tubular portion 3 is When the end surface 5 of the step portion and the medium-thickness tubular portion 2 are overlapped with each other, FIG. 4 can be obtained. In this embodiment, as is apparent from FIG. 4, since the inner side surface of the thin cylindrical portion 3 and the end surface 5 are in close contact with each other, it is possible to form a rounded end portion having high end face strength and deformation resistance.
次に第５図〜第７図によって、前記実施例の紙筒１をボ
ビンとして使用し、従来から使用されている各種の補助
部材を適用した使用例を示す。Next, FIGS. 5 to 7 show examples of use in which the paper cylinder 1 of the above-described embodiment is used as a bobbin and various conventionally used auxiliary members are applied.
第５図は、紙筒１を図示しないワインダーに取付けた様
子を示す図であり、ポビン支持腕10に設けた軸受11で、
紙筒１に嵌合した把持部材12を回転自在に支持した場合
を示したものである。第６図は、紙筒１の端部にキャッ
プ13を嵌入した場合を示している。第７図は、合成樹脂
フィルムを巻取る巻芯として紙筒１を使用する際に端部
に被せるフランジワッシャ14を取付けた場合を示したも
のである。図において、15はフランジ、16は該ワッシャ
14を紙筒１に固定するノッチである。FIG. 5 is a view showing a state in which the paper cylinder 1 is attached to a winder (not shown). The bearing 11 provided on the pobbin support arm 10
It shows a case where the gripping member 12 fitted in the paper tube 1 is rotatably supported. FIG. 6 shows a case where the cap 13 is fitted into the end portion of the paper tube 1. FIG. 7 shows a case where a flange washer 14 is attached to cover the end portion when the paper tube 1 is used as a core for winding a synthetic resin film. In the figure, 15 is a flange and 16 is the washer.
Notch for fixing 14 to the paper tube 1.
このように本実施例の紙筒１は、従来の積層面を露出し
ていた端面を有する紙製ボビンないしコアに使用してい
た各種の補助部材をそのまま使用することができるとい
う利点がある。As described above, the paper tube 1 of the present embodiment has an advantage that various auxiliary members used in the conventional paper bobbin or core having the end surface with the laminated surface exposed can be used as they are.
以上説明したように本発明の紙製筒状体の端部形成方法
は、紙を積層して得た筒状体の内面を端部から筒の奥に
かけて同心円状に切除するに当たって、端部寄りを深
く、筒の奥を浅く２段に切除して、肉薄筒部と、中肉厚
筒部と、この肉薄筒部と中肉厚筒部の間の段差部端面と
を形成し、肉薄筒部を段差部端面との接線から中肉厚筒
部にかけて内側に、２段階的に、又は折返し部分の断面
が円弧状になる如く、徐徐に折り返して、肉薄筒部を段
差部端面と中肉厚筒部に重ね合わせ、かつ前記浅く切除
した切除分の厚さと肉薄筒部の肉厚とを同様の厚さにし
たから、表層部材で覆われた滑らかな曲面を持つ紙筒の
端部を形成することかでき、しかも肉薄筒部の折り返し
部分の内側に皺が生じることが少なくて済み、肉薄筒部
と段差部端面及び中肉厚筒部との重合部は全体として平
均した厚さに形成できる。従って、この重合部の厚さ
を、重合部以外の筒状体の筒の厚さと同一に保つことが
でき、かつ重合部の内径を筒状体の内径に一致させるこ
とができる。それ故、同じ仕様で端部を単に輪切りにし
た紙筒による従来のボビン用の各補助部材をそのまま使
用することができるという利点がある。As described above, the method for forming the end portion of the tubular body made of paper according to the present invention is such that the inner surface of the tubular body obtained by stacking paper is cut concentrically from the end portion to the inner side of the cylinder, To form a thin cylinder portion, a medium-thickness cylinder portion, and an end surface of a step between the thin-walled cylinder portion and the medium-thickness cylinder portion. Part from the tangent line to the end face of the step portion to the inside of the medium-thickness tubular portion in two steps or gradually so that the folded portion has an arc-shaped cross section, and the thin-walled tubular portion is turned into the end face of the step portion and the medium-thickness portion. Since the thickness of the thinly cut portion overlapped with the thick tubular portion is made to be the same as the thickness of the thin tubular portion, the end of the paper tube having a smooth curved surface covered with the surface layer member is Can be formed, and wrinkles are less likely to occur inside the folded-back portion of the thin-walled tubular portion, and the thin-walled tubular portion and the end surface of the stepped portion Overlapping portion between Atsuto portion may be formed to a thickness averaged as a whole. Therefore, the thickness of the overlapped portion can be kept the same as the thickness of the cylinder of the tubular body other than the overlapped portion, and the inner diameter of the overlapped portion can be matched with the inner diameter of the tubular body. Therefore, there is an advantage that it is possible to use the conventional auxiliary members for the bobbin, which have the same specifications and are simply formed by cutting the ends into a circular cylinder.
また、肉薄筒部は段差部端面から中肉厚筒部にかけて徐
徐に折り返えされるので、折り返えされた肉薄筒部の外
表面に亀裂が発生したりせず、表層部材で覆われた滑ら
かな曲面を持つ紙筒の端部を形成することができる。従
って、紙筒の端部からの湿気の浸透を防止でき、強度劣
化の防止に有効である。また表層部材のメクレ及び剥離
の防止にも有効である。Further, since the thin tubular portion is gradually folded back from the end face of the stepped portion to the medium thick tubular portion, the outer surface of the folded thin tubular portion is not cracked and covered with the surface layer member. It is possible to form an end portion of a paper cylinder having a smooth curved surface. Therefore, it is possible to prevent the permeation of moisture from the end portion of the paper cylinder, which is effective in preventing the deterioration of strength. It is also effective in preventing the surface layer member from being scraped and peeled off.
更に、筒状体の内面を端部から筒の奥にかけて同心円状
に切除するに当たって、筒の奥の方を深く切除せずに浅
く切除して中肉厚筒部を残し、そこに折り返した肉薄筒
部を重ね合わせるようにしたので、筒の奥の方を深く切
除する場合に比して筒の強度の低下を極めて少ないとい
う効果もある。Furthermore, when cutting the inner surface of the cylindrical body concentrically from the end to the inner part of the cylinder, the inner part of the cylindrical part is cut shallowly without deep cutting, leaving a medium-thickness cylindrical part, and thinly folded back there. Since the tubular portions are overlapped with each other, there is an effect that the strength of the tubular member is not significantly reduced as compared with the case of deeply cutting the inner portion of the tubular member.
第１図は一実施例により紙筒を２段に切除した状態を示
す一分断面によって示した部分側面図、第２図は第１図
の肉薄筒部を折り返した状態を示す要部の部分側面図、
第３図は別の実施例による第１図に対応する図、第４図
は第３図の実施例による第２図に対応する図、第５図〜
第７図は前記実施例により得られた紙製筒をボビンとし
て使用した場合の補助部材との取合いを説明する図であ
る。 １……紙製筒、２……中肉厚筒部、３……肉薄筒部、４
……切除した部分。FIG. 1 is a partial side view showing a state in which a paper cylinder is cut into two stages according to an embodiment, and is a partial side view, and FIG. 2 is a main part showing a state in which the thin cylinder portion of FIG. 1 is folded back. Side view,
3 is a view corresponding to FIG. 1 according to another embodiment, FIG. 4 is a view corresponding to FIG. 2 according to the embodiment of FIG. 3, and FIG.
FIG. 7 is a diagram for explaining the engagement with the auxiliary member when the paper cylinder obtained in the above embodiment is used as a bobbin. 1 ... Paper tube, 2 ... Medium-thickness tube section, 3 ... Thin-walled tube section, 4
...... The part that was cut off.
Claims (2)
部から筒の奥にかけて同心円状に切除するに当たって、
端部寄りを深く、筒の奥を浅く２段に切除して、肉薄筒
部（３）と、中肉厚筒部（２）と、この肉薄筒部（３）
と中肉厚筒部（２）の間の段差部端面（５）とを形成
し、肉薄筒部（３）を肉薄筒部（３）と段差部端面
（５）との接線から中肉厚筒部（２）にかけて内側に２
段階的に折り返して、肉薄筒部（３）を段差部端面
（５）と中肉厚筒部（２）に重ね合わせることから成
り、前記浅く切除した切除分の厚さ（d1）と肉薄筒部
（３）の肉厚（d2）とを同様の厚さにしたことを特徴と
する紙製筒状体（１）の端部形成方法。1. When cutting the inner surface of a tubular body (1) obtained by laminating papers in a concentric shape from the end to the inner part of the tube,
The thin portion (3), the medium-thickness tubular portion (2), and the thin-walled tubular portion (3) are cut by cutting the end portion deeply and the inner portion of the tube shallowly into two stages.
An end surface (5) of the step portion between the thin-walled tubular portion (2) and the medium-thickness tubular portion (2) is formed, and the thin-walled tubular portion (3) is formed from the tangent line between the thin-walled tubular portion (3) and the end surface (5) of the stepped portion to a medium-wall thickness 2 inward over the tube (2)
The thin cylinder portion (3) is superposed on the step end surface (5) and the medium-thickness cylinder portion (2) by folding back in stages, and the thickness (d1) and the thin cylinder of the thinly cut portion are cut. A method for forming an end portion of a paper tubular body (1), characterized in that the wall thickness (d2) of the portion (3) is the same.
差部端面（５）との接線から中肉厚筒部（２）にかけて
内側に、折返し部分の断面が円弧状になる如く、折り返
す請求項１に記載の紙製筒状体（１）の端部形成方法。2. The thin-walled tubular portion (3) is inward from the tangent line between the thin-walled tubular portion (3) and the end face (5) of the step portion to the medium-thickness tubular portion (2), and the cross section of the folded-back portion has an arc shape. As described above, the method for forming an end portion of a paper tubular body (1) according to claim 1, which is folded back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182250A JPH0788082B2 (en) | 1987-07-23 | 1987-07-23 | Method for forming the end of a paper cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182250A JPH0788082B2 (en) | 1987-07-23 | 1987-07-23 | Method for forming the end of a paper cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6426433A JPS6426433A (en) | 1989-01-27 |
| JPH0788082B2 true JPH0788082B2 (en) | 1995-09-27 |
Family
ID=16114969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62182250A Expired - Fee Related JPH0788082B2 (en) | 1987-07-23 | 1987-07-23 | Method for forming the end of a paper cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0788082B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5554688U (en) * | 1978-10-02 | 1980-04-12 | ||
| JPS613666B2 (en) * | 1980-08-15 | 1986-02-03 | Dainippon Printing Co Ltd | |
| JPS60145155U (en) * | 1984-03-08 | 1985-09-26 | 田中紙管株式会社 | thread-wrapped paper tube |
| JPS61244542A (en) * | 1985-04-22 | 1986-10-30 | 桜紙管工業株式会社 | Manufacture of spiral paper tube for bobbin |
-
1987
- 1987-07-23 JP JP62182250A patent/JPH0788082B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6426433A (en) | 1989-01-27 |
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