JPH0324541Y2 - - Google Patents
Info
- Publication number
- JPH0324541Y2 JPH0324541Y2 JP1985198321U JP19832185U JPH0324541Y2 JP H0324541 Y2 JPH0324541 Y2 JP H0324541Y2 JP 1985198321 U JP1985198321 U JP 1985198321U JP 19832185 U JP19832185 U JP 19832185U JP H0324541 Y2 JPH0324541 Y2 JP H0324541Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper tube
- bobbin
- fitting
- spindle
- thin
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 27
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 description 11
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は、紙管ボビンの改良に関し、動力伝達
部分が破損せず、確実に軸心を保持することがで
きる紙管ボビンを提供するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to the improvement of paper tube bobbins, and provides a paper tube bobbin that can reliably hold the axis without damaging the power transmission part. be.
国内で繊維加工業者が使用するナイロン糸やポ
リエステル糸等の合成繊維を巻取るボビンは空ボ
ビンを回収することが可能であることと、重量に
比較して強度が大きいこと等からアルミニウム管
製や鉄管製の金属ボビンが使用されている。
Bobbins for winding synthetic fibers such as nylon thread and polyester thread used by textile processing companies in Japan are made of aluminum tubes or A metal bobbin made of iron pipe is used.
しかし、輸出用の合成繊維を巻取るボビンの場
合には輸送費の問題や製造コストの問題から回収
することが実質的に困難であるので、紙管ボビン
が多く使用されている。 However, in the case of bobbins for winding synthetic fibers for export, it is virtually difficult to recover them due to transportation and manufacturing costs, so paper tube bobbins are often used.
紙管ボビンは強度が金属管ボビンに比較して弱
いので特にスピンドルとの嵌合部分に特別な構造
を採用する必要がある。 Paper tube bobbins have lower strength than metal tube bobbins, so it is necessary to adopt a special structure especially in the part where they fit with the spindle.
紙管ボビンの一例として、実公昭59−7330号公
報が提案されている。この公報に記載された紙管
ボビンは紙管体の下端部の内層を所定の厚さに削
除して拡大穴を形成し、この拡大穴内にスピンド
ルが嵌合するリング体を嵌入固定し、スピンドル
の駆動部を前記リング体に嵌合させ、この駆動部
の近傍に形成した嵌合部を紙管体の内面に直接的
に密接に嵌合させ、更にスピンドルの先端部を紙
管体の中間部に設けた軸受により支持したもので
ある。この紙管ボビンは拡大穴内にスピンドルの
嵌合部を直接的に密接に嵌合させることによつて
軸心を正確に保持するものであるが、この紙管ボ
ビンは次の問題点があり、大量に使用した場合に
はクレームが多発する恐れがある。 As an example of a paper tube bobbin, Japanese Utility Model Publication No. 59-7330 has been proposed. In the paper tube bobbin described in this publication, an enlarged hole is formed by removing the inner layer at the lower end of the paper tube body to a predetermined thickness, and a ring body into which a spindle fits is fitted and fixed into the enlarged hole. The driving part of the spindle is fitted into the ring body, the fitting part formed near the driving part is directly and closely fitted into the inner surface of the paper tube, and the tip of the spindle is inserted into the middle of the paper tube. It is supported by a bearing provided in the section. This paper tube bobbin holds the shaft center accurately by directly and closely fitting the fitting part of the spindle into the enlarged hole, but this paper tube bobbin has the following problems. If used in large quantities, there is a risk of frequent complaints.
(a) 第５図に示すように紙管ボビンＢを構成する
紙管体１の下端部の内径側を切除して拡大穴２
を形成し、その拡大穴２内に合成樹脂製のリン
グ体３を嵌入固定するので、肉厚部と肉薄部の
境目に形成されている段部４の強度が極端に弱
くなる。(a) As shown in Fig. 5, the inner diameter side of the lower end of the paper tube body 1 constituting the paper tube bobbin B is cut out to form an enlarged hole 2.
is formed, and the ring body 3 made of synthetic resin is fitted and fixed in the enlarged hole 2, so the strength of the stepped portion 4 formed at the boundary between the thick part and the thin part becomes extremely weak.
従つて、糸の巻取り開始の時と満巻後のボビ
ンの回転の停止の際にスピンドルにブレーキが
作用した時には前記段部４にボビンの慣性に伴
う応力が集中して作用し、紙管体の繊維質が損
傷し、極度の低下が発生する。 Therefore, when a brake is applied to the spindle at the start of yarn winding and when the bobbin stops rotating after full winding, stress due to the inertia of the bobbin concentrates on the stepped portion 4, and the paper tube The body's fibers are damaged and extreme deterioration occurs.
(b) 満巻後のボビンの回転停止のためにスピンド
ルにブレーキが掛かつた時には、その回転トル
クがリング体３に集中的に作用し、リング体３
が拡大穴内でスリツプし、ボビンＢが空転して
場合によつてはスピンドルより外れる危険性が
ある。(b) When the spindle is braked to stop the bobbin rotation after full winding, the rotational torque acts intensively on the ring body 3.
There is a risk that the bobbin B may slip in the enlarged hole, causing the bobbin B to spin idly and possibly come off the spindle.
(c) 満巻後のボビンの取扱中ないしは輸送中にボ
ビンＢの下端部に衝撃を与えることがあるが、
その場合には第６図のように段部４に座屈部６
を発生したり、第７図のようにその部分から円
周方向に亀裂や割れ７が発生する。(c) Impact may be applied to the lower end of bobbin B during handling or transportation of the bobbin after it is fully wound.
In that case, as shown in FIG.
, or cracks or fractures 7 occur in the circumferential direction from that part as shown in FIG.
(d) 紙管体１には糸層の巻装圧力がほぼ全面的に
作用するが、特に合成繊維の場合には経時的に
収縮があるので、その巻装圧力が巻取り直後よ
り増加する。一方、紙管体１には吸湿性があ
り、その強度が経時的に低下し、その下端部の
薄肉部８が第８図のように外側に拡開する。こ
の薄肉部８が拡開すると当然のことながらリン
グ体３の固定力が低下してこれの空転が生ずる
ことになる。(d) The winding pressure of the yarn layer acts almost entirely on the paper tube body 1, but since synthetic fibers in particular shrink over time, the winding pressure increases immediately after winding. . On the other hand, the paper tube body 1 has hygroscopic properties, and its strength decreases over time, and the thin wall portion 8 at the lower end expands outward as shown in FIG. When the thin portion 8 expands, the fixing force of the ring body 3 naturally decreases, causing the ring body 3 to spin idly.
また、本出願人は実公平１−36583号公報によ
つてボビンの下部の内面の肉を切除して薄肉部を
形成し、この薄肉部に合成樹脂製のリング体（回
転伝導体）を嵌合させたボビンに関する考案を本
考案の出願前に提案している。 In addition, the present applicant has disclosed in Japanese Utility Model Publication No. 1-36583 that the inner wall of the lower part of the bobbin is cut off to form a thin walled portion, and a ring body (rotating conductor) made of synthetic resin is fitted into this thin walled portion. A proposal regarding a combined bobbin was proposed before the present invention was filed.
この考案は、ボビンの下部内面を削除して薄肉
部を形成する際に「切削残り」が発生してこれが
ボビン内面とスピンドルの嵌合円柱部との間に挾
まれて軸心が狂うので、これを回避するために切
削残りの部分を保護する先細部をリング体の上部
に一体的に形成したものである。 This idea was developed because when removing the lower inner surface of the bobbin to form a thin section, "cutting residue" is generated, which gets caught between the inner surface of the bobbin and the fitting cylindrical part of the spindle, causing the axis to become misaligned. In order to avoid this, a tapered part is integrally formed on the upper part of the ring body to protect the remaining part after cutting.
しかし、この考案は、切削残りがスピンドル側
に突出しないように先細部を設けたものであるの
で、薄肉部の厚肉部の境界部分である段部とこの
段部を形成している厚肉部の内面に嵌合してボビ
ンの下端内面とリング体との間に長い嵌合面を形
成してボビンの下端部を補強すると共に、ボビン
とリング体との強力な固定力を得ることができる
ものではない。 However, in this design, a tapered part is provided to prevent cutting residue from protruding toward the spindle side, so the step part that is the boundary between the thin part and the thick part and the thick part forming this step part. It fits into the inner surface of the bobbin to form a long fitting surface between the inner surface of the lower end of the bobbin and the ring body, thereby reinforcing the lower end of the bobbin and providing a strong fixing force between the bobbin and the ring body. It's not possible.
本考案は、前記従来の紙管ボビンの有する各種
の問題点、特に実公平１−36583号公報の考案の
有する欠点を解消するために得られたものであつ
て、その目的とするところは、紙管体の下端部内
面を削除して薄肉部を形成してこの部分に回転伝
導体を嵌入した紙管ボビンの最大の弱点である薄
肉部と厚肉部とこれらの境界部分である段部が弱
い点を改良し、ボビンの下部を保護すると共に、
ボビンと回転伝導体との嵌合を強固にし、もつて
軸心を確実に保持することができるボビンを提供
することにある。
The present invention was achieved in order to solve various problems of the conventional paper tube bobbin, especially the drawbacks of the invention of Utility Model Publication No. 1-36583, and its purpose is to: The inner surface of the lower end of the paper tube body has been removed to form a thin wall section, and a rotating conductor is fitted into this section.The biggest weakness of the paper tube bobbin is the thin wall section, the thick wall section, and the stepped section that is the boundary between these. Improved the weak points and protected the bottom of the bobbin,
To provide a bobbin that can securely fit the bobbin and a rotating conductor and thereby securely hold the axis.
前記目的を達成するための本考案に係る紙管製
ボビンは、紙管本体と、該紙管本体の下端内部に
合成樹脂製の回転伝導体を嵌着した紙管製ボビン
において、前記紙管本体はその下端内面の肉を切
除して薄肉部と前記薄肉部の終端である段部と肉
部を切除しない厚肉部とを形成し、前記回転伝導
体２１は前記薄肉部２０ａの内面に嵌合する短円
筒状の伝導部２４又は前記伝導部２４の端面と、
前記段部２０ｂに当接する段部保護部２５と、前
記厚肉部２０ｃに嵌合する短円筒状の嵌合部２
６，２６ｂ，２６ｈより成り、紙端本体２０の下
部内面は、軸線方向に向いた伝導部２４の表面
と、肉厚方向に向いた段部保護部２５の表面と、
軸線方向に向いた嵌合部２６，２６ｂ，２６ｈの
表面の３つの表面に当接して保護される如く構成
して成るものである。
A paper tube bobbin according to the present invention for achieving the above object includes a paper tube body and a rotating conductor made of synthetic resin fitted inside the lower end of the paper tube body. The main body is formed by cutting off the inner surface of the lower end to form a thin section, a step section which is the end of the thin section, and a thick section where the thick section is not removed, and the rotation conductor 21 is attached to the inner surface of the thin section 20a. A short cylindrical conductive part 24 that fits or an end face of the conductive part 24,
A step protection part 25 that comes into contact with the step part 20b, and a short cylindrical fitting part 2 that fits into the thick part 20c.
6, 26b, and 26h, the lower inner surface of the paper edge main body 20 includes a surface of the conductive portion 24 facing in the axial direction, a surface of the stepped portion protection portion 25 facing in the thickness direction,
It is constructed so as to be protected by coming into contact with three surfaces of the fitting portions 26, 26b, and 26h facing in the axial direction.
本考案は、特に回転伝導体を短円筒状の伝導部
と段部保護部と短円筒状の嵌合部からなる二段の
直径の異なる円筒体に形成した点に特徴がある。 The present invention is particularly characterized in that the rotating conductor is formed into a two-stage cylindrical body having different diameters, each consisting of a short cylindrical conductive part, a step protection part, and a short cylindrical fitting part.
強度上の問題から、紙管体の下端部に直接にス
ピンドルの駆動部を嵌合することはできないの
で、必然的に紙管体の下端部の内面の肉を削除し
て薄肉部を形成し、その薄肉部に回転伝導体を嵌
入固定することになるが、特に本考案においては
この回転伝導体によつて厚肉部と薄肉部の間の段
部の強度を向上させることにある。 Due to strength issues, it is not possible to fit the spindle drive part directly to the bottom end of the paper tube, so it is necessary to remove the inner wall of the bottom end of the paper tube to form a thin section. A rotating conductor is inserted and fixed into the thin walled portion, and the purpose of the present invention is particularly to improve the strength of the stepped portion between the thick walled portion and the thin walled portion by this rotating conductor.
また、紙管体の下端部内面にスピンドルの駆動
部を直接に嵌合させるのではなく、回転伝導体を
駆動部に嵌合させることによつて正確な嵌合と強
力な伝導力を得ることにある。 In addition, instead of directly fitting the drive part of the spindle to the inner surface of the lower end of the paper tube, by fitting the rotating conductor to the drive part, accurate fitting and strong conduction force can be obtained. It is in.
更に、薄肉部を削除した切削加工面のザラツキ
があつてもこれを完全に吸収することにある。 Furthermore, even if there is any roughness on the cut surface where the thin portion has been removed, this is completely absorbed.
本考案においては回転伝導体が重要な役割をな
しているが、この回転伝導体は合成樹脂の成形物
であつて、例えば、ABS樹脂、ポリエチレン、
ポリアミドの如き強度が大きな工業用樹脂が使用
される。 The rotating conductor plays an important role in this invention, and this rotating conductor is a molded product of synthetic resin, such as ABS resin, polyethylene,
A high strength industrial resin such as polyamide is used.
この回転伝導体の構造は、スピンドルに形成さ
れた多角形の駆動部に嵌合する短円筒状の回転伝
導部と段部を保護する部分と、スピンドルの嵌合
部に嵌合する短円筒状の部分より構成されてい
る。 The structure of this rotational conductor consists of a short cylindrical rotational conduction part that fits into a polygonal driving part formed on the spindle, a part that protects the stepped part, and a short cylindrical part that fits into the fitting part of the spindle. It is composed of parts.
そして前記回転伝導部はスピンドルより衝撃力
が伝達されてもこれに十分に耐えて最大トルクを
伝達することができる構造と強度を有することが
必要である。 The rotation transmitting portion needs to have a structure and strength that can sufficiently withstand impact force transmitted from the spindle and transmit maximum torque.
段部を保護する部分は切削面に嵌合し、回転ト
ルクをこの段部に集中しないように保護機能と応
力分散機能とを有するものである。この部分は厚
肉部の切削面に沿つて形成されるが、一般には水
平面あるいはラツパ状に開いた円錐面より構成さ
れている。 The part that protects the step fits into the cutting surface and has a protective function and a stress dispersion function so that rotational torque is not concentrated on the step. This portion is formed along the cut surface of the thick portion, and is generally composed of a horizontal surface or a conical surface opened in a truss shape.
スピンドルに嵌合する嵌合部は軸心を正確に保
持する部分であつて、糸層が成形されて重量が増
加したボビンの振れが生じないようにスピンドル
に確実に嵌合する構造であることが必要である。 The fitting part that fits onto the spindle is a part that holds the axis accurately, and has a structure that allows it to fit securely into the spindle to prevent the bobbin, which has increased weight due to the molded yarn layer, from wobbling. is necessary.
好ましい実施例においては、スピンドルの嵌合
部に嵌合する部分と、肉が削除されていないボビ
ンの内面に嵌合する部分を区別した二重円筒構造
が適用される。 In a preferred embodiment, a double cylindrical structure is used in which a portion that fits into the fitting portion of the spindle and a portion that fits into the inner surface of the bobbin with no flesh removed are distinguished.
次に、図面を参照して本考案の実施例を説明す
る。
Next, embodiments of the present invention will be described with reference to the drawings.
第１図はボビンの全体構造を示す正断面図であ
り、ボビンＢは紙管体２０と、その下部に固定さ
れている回転体２１（ソケツト）と、紙管体２０
の中央部に固定されている軸受２２より構成され
ており、必要に応じて紙管体２０の上端部にキヤ
ツプ２３が固定されている。 FIG. 1 is a front sectional view showing the overall structure of the bobbin, and the bobbin B includes a paper tube body 20, a rotary body 21 (socket) fixed to the lower part thereof, and a paper tube body 20.
A cap 23 is fixed to the upper end of the paper tube body 20 as required.
回転伝導体２１は第２図に示すように紙管体の
軸線方向を向いた短円筒状の伝導部２４と、肉厚
方向を向いた段部保護部２５と、軸線方向を向い
た短円筒状の嵌合部２６の３部分より構成されて
おり、前記工業用合成樹脂によつて一体的に成形
されている。 As shown in FIG. 2, the rotating conductor 21 includes a short cylindrical conduction part 24 facing the axial direction of the paper tube body, a step protection part 25 facing the wall thickness direction, and a short cylindrical conduction part 24 facing the axial direction. It is composed of three parts of a shaped fitting part 26, and is integrally molded from the above-mentioned industrial synthetic resin.
伝導部２４は紙管体２０の薄肉部２０ａに嵌合
する表面２４ａと、スピンドルの駆動部の円筒面
と多角形面（通常はおむすび形）より構成された
内面２４ｂを有する。 The conductive portion 24 has a surface 24a that fits into the thin wall portion 20a of the paper tube body 20, and an inner surface 24b composed of a cylindrical surface of the drive portion of the spindle and a polygonal surface (usually rice ball-shaped).
段部保護部２５は嵌合部２０と伝導部２４の間
を連結し、紙管体２０に形成された段部２０ｂを
保護する形状を有し、通常は段部２０ｂに合わせ
て水平面ないしやゝ中央が盛り上がつた円錐面よ
り構成されている。 The stepped portion protection portion 25 connects the fitting portion 20 and the conductive portion 24, and has a shape that protects the stepped portion 20b formed on the paper tube body 20, and is usually formed on a horizontal surface or a flat surface in line with the stepped portion 20b. It is composed of a conical surface with a raised center.
嵌合部２６は、この実施例においてはスピンド
ルの嵌合部に嵌合する内筒部２６ａと、紙管体２
０の下端部の薄肉部２０ａの直上部に嵌合する外
筒部２６ｂの二重構造に形成されている。また、
この内筒部２６ａと外筒部２６ｂとは間隙２６ｃ
を有するように離れている。従つて、内筒部２６
ａは若干であるが、弾性変形（拡開）が可能であ
る。 In this embodiment, the fitting part 26 includes an inner cylinder part 26a that fits into the fitting part of the spindle, and a paper tube body 2.
It is formed in a double structure with an outer cylinder part 26b that fits directly above the thin wall part 20a at the lower end of the cylinder. Also,
There is a gap 26c between the inner cylinder part 26a and the outer cylinder part 26b.
As far as having. Therefore, the inner cylinder part 26
Although a is slightly, elastic deformation (expansion) is possible.
第３図は第２の実施例を示すものであつて、回
転伝導体２１は一重の嵌合部２６を有している。
この嵌合部２６は外面が紙管体２０の内面に接触
し、内面がスピンドル２７の嵌合部２７ａに嵌合
する寸法に構成されている。 FIG. 3 shows a second embodiment, in which the rotating conductor 21 has a single fitting part 26.
The fitting portion 26 has dimensions such that its outer surface contacts the inner surface of the paper tube body 20 and its inner surface fits into the fitting portion 27a of the spindle 27.
第４図は第３の実施例を示すものであつて、回
転伝導部２４の内面中央部より薄肉円筒部２６ｇ
を突出させたものであつて、この薄肉円筒部２６
ｇの上端部２６ｈは紙管体２０の厚肉部の内面に
嵌合しており、全体として円筒形のばねを形成し
ている。従つて、スピンドル２７の嵌合部２７ａ
の表面が前記薄肉円筒部２６ｇと接触した際に
は、紙管体２０の軸心をスピンドル２７の軸心に
合わせた状態で固定される。 FIG. 4 shows a third embodiment, in which a cylindrical portion 26g that is thinner than the center of the inner surface of the rotation transmission portion 24 is shown.
This thin cylindrical portion 26
The upper end portion 26h of the paper tube body 20 is fitted into the inner surface of the thick portion of the paper tube body 20, forming a cylindrical spring as a whole. Therefore, the fitting portion 27a of the spindle 27
When the surface of the paper tube body 20 comes into contact with the thin cylindrical portion 26g, the paper tube body 20 is fixed with its axial center aligned with the axial center of the spindle 27.
本考案によれば、スピンドル２７の嵌合部２７
ａに回転伝導体２１の嵌合部２６を紙管体２０の
肉厚部２０ｃに嵌合させ、紙管体２０の段部２０
ｂを段部保護部２５によつて保護し、更に前記嵌
合部２６等に一体的に形成された紙管体２０の下
端部に形成した薄肉部２０ａに嵌合している伝導
部２４をスピンドル２７の駆動部に嵌合させるよ
うに構成したので、スピンドル２７に対するボビ
ンＢの軸心は伝導部２４と嵌合部２６（あるいは
薄肉円筒部２６ｇ）によつて得られると共に、紙
管体２０の中間部に設けた軸受２２によつて軸心
が維持されることになる。 According to the present invention, the fitting part 27 of the spindle 27
a, the fitting portion 26 of the rotation conductor 21 is fitted into the thick wall portion 20c of the paper tube body 20, and the stepped portion 20 of the paper tube body 20 is fitted.
b is protected by the step protection part 25, and the conductive part 24 is fitted into the thin part 20a formed at the lower end of the paper tube body 20 which is integrally formed with the fitting part 26 etc. Since it is configured to fit into the driving part of the spindle 27, the axis of the bobbin B with respect to the spindle 27 is obtained by the conduction part 24 and the fitting part 26 (or the thin cylindrical part 26g), and the paper tube body 20 The axial center is maintained by the bearing 22 provided at the intermediate portion of the shaft.
本考案に係る紙管ボビンは、紙管本体２０と、
該紙管本体２０の下端内部に合成樹脂製の回転導
体２１を嵌着した紙管製ボビンにおいて、前記紙
管本体２０はその下端内面の肉を切除して薄肉部
２０ａと前記薄肉部の終端である段部２０ｂと肉
部を切除しない厚肉部２０ｃとを形成し、前記回
転伝導体２１は前記薄肉部２０ａの内面に嵌合す
る短円筒状の伝導部２４と、前記段部２０ｂに当
接する段部保護部２５又は前記伝導部２４の端面
と、前記厚肉部２０ｃに嵌合する短円筒状の嵌合
部２６，２６ｂ，２６ｈより成り、紙端本体２０
の下部内面は、軸線方向に向いた伝導部２４の表
面と、肉厚方向に向いた段部保護部２５の表面
と、軸線方向に向いた嵌合部２６，２６ｂ，２６
ｈの表面の三つの表面に当接して保護される如く
構成されており、次の効果を奏することができ
る。
The paper tube bobbin according to the present invention includes a paper tube main body 20,
In a paper tube bobbin in which a rotating conductor 21 made of synthetic resin is fitted inside the lower end of the paper tube main body 20, the inner surface of the lower end of the paper tube main body 20 is removed to form a thin wall portion 20a and a terminal end of the thin wall portion. The rotary conductor 21 has a short cylindrical conductive portion 24 that fits into the inner surface of the thin wall portion 20a, and a thick wall portion 20c in which the wall portion is not removed. It consists of the end face of the step protection part 25 or the conductive part 24 that abuts, and the short cylindrical fitting parts 26, 26b, 26h that fit into the thick part 20c, and the paper end main body 20
The inner surface of the lower part includes the surface of the conductive part 24 facing in the axial direction, the surface of the step protection part 25 facing in the thickness direction, and the fitting parts 26, 26b, 26 facing in the axial direction.
It is constructed so that it comes into contact with and is protected by the three surfaces of h, and the following effects can be achieved.
(a) 紙管本体２０の下端の内面の肉を切除して薄
肉部２０ａを形成し、この部分と紙管本体２０
の厚肉部までの間を短円筒状の伝導部２４と段
部保護部２５と短円筒状の嵌合部２６によつて
連続的に補強しているので、余り大きな外径を
有しない紙管本体２０の下端部に伝導体２１を
強固に固定す紙管本体２０の下端部に伝導体２
１を強固に固定することができる。(a) Cut off the inner surface of the lower end of the paper tube main body 20 to form a thin-walled part 20a, and connect this part and the paper tube main body 20.
Since the area up to the thick part of the paper is continuously reinforced by the short cylindrical conductive part 24, the stepped part protection part 25, and the short cylindrical fitting part 26, the paper does not have a very large outer diameter. The conductor 21 is firmly fixed to the lower end of the tube body 20.The conductor 21 is firmly fixed to the lower end of the paper tube body 20.
1 can be firmly fixed.
紙管本体２０の下端に形成した薄肉部２０ａ
の内面に伝導部２４の外周面が、また、紙管本
体２０の切除されない部分の内面に嵌合部２６
の外周面がそれぞれ接触しているので、接触面
積を大きくとることができ、十分な伝導力を得
ることができる。 Thin wall portion 20a formed at the lower end of the paper tube main body 20
The outer circumferential surface of the conductive portion 24 is on the inner surface of the paper tube body 20, and the fitting portion 26 is on the inner surface of the uncut portion of the paper tube main body 20.
Since the outer peripheral surfaces of the two are in contact with each other, a large contact area can be obtained, and sufficient conductive force can be obtained.
(b) 紙管本体２０の下端部の厚肉部２０ｃと薄肉
部２０ａと、これらの間の段部２０ｂが連続的
に覆われて補強されているので、例えば第６
図、第７図及び第８図で示したような変形や亀
裂の発生、更には破損を防止することができ
る。(b) Since the thick part 20c and the thin part 20a at the lower end of the paper tube main body 20 and the stepped part 20b between them are continuously covered and reinforced, for example, the sixth
It is possible to prevent deformation, cracking, and further damage as shown in FIGS. 7 and 8.
(c) 回転伝導体２１は、短円筒状の伝導部２４と
短円筒状の嵌合部２６（あるいは薄肉円筒部２
６ｇ）の表面で紙管体２０の内面に接触するの
で、接触面積が大きく、例えば、回転伝導体２
１が斜めになつた状態で無理にスピンドル嵌合
部２７ａに嵌合されることがなく、正確な嵌合
を得ることができる。(c) The rotating conductor 21 has a short cylindrical conduction part 24 and a short cylindrical fitting part 26 (or a thin cylindrical part 2
6g) is in contact with the inner surface of the paper tube body 20, so the contact area is large.
1 is not forcibly fitted into the spindle fitting portion 27a in an oblique state, and accurate fitting can be achieved.
(d) 回転伝導体２１の嵌合部２６（あるいは薄肉
円筒部２６ｇ）により紙管体２０が補強されて
いるので、糸の巻装応圧力による変形を阻止で
き、従つて、満巻後にボビンがスピンドルより
外れなくなるという問題は生じない。(d) Since the paper tube body 20 is reinforced by the fitting part 26 (or the thin cylindrical part 26g) of the rotational conductor 21, deformation due to the thread winding stress can be prevented, and therefore the bobbin can be easily removed after full winding. There is no problem that the spindle cannot be removed from the spindle.
(e) 巻装応圧力によつて紙管体２０の下端部の内
径が収縮して回転伝導体２１の一体化が強固と
なり回転伝導体２１の外れを防止することがで
きる。(e) The inner diameter of the lower end of the paper tube body 20 contracts due to the winding stress, and the rotational conductor 21 is firmly integrated, thereby preventing the rotational conductor 21 from coming off.
第１図は本考案の実施例に係る紙管製ボビンの
一例を示す断面図、第２図は回転伝導体の断面
図、第３図は第２の実施例に係る紙管製ボビンの
要部を示す断面図、第４図は第３の実施例に係る
紙管製ボビンとスピンドルとの嵌合状態の説明図
である。第５図は従来の紙管製ボビンの要部を示
す断面図、第６図は紙管体の薄肉部に座屈が発生
している状態を示す断面図、第７図は薄肉部に亀
裂が発生している状態を示す断面図、第８図は薄
肉部が拡開されている状態を示す断面図である。
２０……紙管体、２０ａ……薄肉部、２０ｂ…
…段部、２０ｃ……厚肉部、２１……回転伝導
体、２２……軸受、２３……キヤツプ、２４……
伝導部、２４ａ……表面、２４ｂ……内面、２６
……嵌合部、２６ａ……円筒部、２６ｂ……外筒
部、２６ｇ……薄肉円筒部、２７……スピンド
ル、２７ａ……嵌合部。
FIG. 1 is a sectional view showing an example of a paper tube bobbin according to an embodiment of the present invention, FIG. 2 is a sectional view of a rotating conductor, and FIG. 3 is a main part of a paper tube bobbin according to a second embodiment. FIG. 4 is an explanatory diagram of a fitted state of a paper tube bobbin and a spindle according to the third embodiment. Figure 5 is a sectional view showing the main parts of a conventional paper tube bobbin, Figure 6 is a sectional view showing buckling in the thin wall part of the paper tube body, and Figure 7 is a crack in the thin wall part. FIG. 8 is a sectional view showing a state in which the thin wall portion is expanded. 20...Paper tube body, 20a...Thin wall portion, 20b...
...Stepped portion, 20c... Thick walled portion, 21... Rotating conductor, 22... Bearing, 23... Cap, 24...
Conductive part, 24a...surface, 24b...inner surface, 26
...Fitting part, 26a... Cylindrical part, 26b... Outer cylinder part, 26g... Thin cylinder part, 27... Spindle, 27a... Fitting part.
Claims (1)
合成樹脂製の回転伝導体２１を嵌着した紙管製ボ
ビンにおいて、 前記紙管本体２０はその下端内面の肉を切除し
て薄肉部２０ａと前記薄肉部２０ａの終端である
段部２０ｂと肉部を切除しない厚肉部２０ｃとを
形成し、前記回転伝導体２１は前記薄肉部２０ａ
の内面に嵌合する短円筒状の伝導部２４と、前記
段部２０ｂに当接する段部保護部２５または前記
伝導部２４端面と、前記厚肉部２０ｃに嵌合する
短円筒状の嵌合部２６，２６ｂ，２６ｈより成
り、紙端本体２０の下部内面は、軸線方向に向い
た伝導部２４の表面と、肉厚方向に向いた段部保
護部２５の表面と、軸線方向に向いた嵌合部２
６，２６ｂ，２６ｈの表面の３つの表面に当接し
て保護される如く構成して成る紙管製ボビン。[Claims for Utility Model Registration] A paper tube bobbin including a paper tube main body 20 and a rotating conductor 21 made of synthetic resin fitted inside the lower end of the paper tube main body 20, wherein the paper tube main body 20 has a lower end inner surface thereof. A thin wall portion 20a, a stepped portion 20b which is the end of the thin wall portion 20a, and a thick wall portion 20c where the wall portion is not cut are formed by cutting off the wall of the rotary conductor 21.
A short cylindrical conductive part 24 that fits into the inner surface of the step part 20b, a step protection part 25 that comes into contact with the step part 20b or the end surface of the conductive part 24, and a short cylindrical fitting that fits into the thick part 20c. The lower inner surface of the paper edge main body 20 includes a surface of the conductive portion 24 facing in the axial direction, a surface of the step protection portion 25 facing in the thickness direction, and a surface facing in the axial direction. Fitting part 2
A paper tube bobbin constructed so as to be protected by coming into contact with three surfaces: 6, 26b, and 26h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985198321U JPH0324541Y2 (en) | 1985-12-25 | 1985-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985198321U JPH0324541Y2 (en) | 1985-12-25 | 1985-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62105986U JPS62105986U (en) | 1987-07-06 |
| JPH0324541Y2 true JPH0324541Y2 (en) | 1991-05-28 |
Family
ID=31158898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985198321U Expired JPH0324541Y2 (en) | 1985-12-25 | 1985-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324541Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425471U (en) * | 1977-07-21 | 1979-02-19 | ||
| JPS55520U (en) * | 1978-06-10 | 1980-01-05 | ||
| JPS6436853U (en) * | 1987-08-28 | 1989-03-06 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0136853Y2 (en) * | 1984-10-16 | 1989-11-08 |
-
1985
- 1985-12-25 JP JP1985198321U patent/JPH0324541Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425471U (en) * | 1977-07-21 | 1979-02-19 | ||
| JPS55520U (en) * | 1978-06-10 | 1980-01-05 | ||
| JPS6436853U (en) * | 1987-08-28 | 1989-03-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62105986U (en) | 1987-07-06 |
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