JPH0737272B2 - Winding tape manufacturing method - Google Patents
Winding tape manufacturing methodInfo
- Publication number
- JPH0737272B2 JPH0737272B2 JP62056717A JP5671787A JPH0737272B2 JP H0737272 B2 JPH0737272 B2 JP H0737272B2 JP 62056717 A JP62056717 A JP 62056717A JP 5671787 A JP5671787 A JP 5671787A JP H0737272 B2 JPH0737272 B2 JP H0737272B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- long
- winding tape
- covering sheet
- plastic film
- 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 - Lifetime
Links
Landscapes
- Adhesive Tapes (AREA)
- Packaging Of Machine Parts And Wound Products (AREA)
- Packages (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Replacement Of Web Rolls (AREA)
Description
【発明の詳細な説明】 [産業上の利用分野] 本発明は、密に巻装され且つ全外周面がつまみ部が突出
された被覆シートによって被包封着されている、ドラフ
ティングテープのような弱粘着性の小幅の巻テープの製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a drafting tape, which is tightly wound and whose entire outer peripheral surface is encapsulated by a cover sheet having a tab protruding. The present invention relates to a method for manufacturing a narrow tape having a weak adhesive property.
[従来の技術] 従来、製図用のドラフティングテープ又は修正用テープ
等の弱粘着テープの完成品は、一般的に長尺の筒状体に
巻装されている弱粘着テープの原反から成る巻テープを
スリッターにかけて小幅の定尺に裁断して作成してい
る。また裁断後に、各最終製品となる小幅の巻テープを
包装させるようにしていた。[Prior Art] Conventionally, a finished product of a weak adhesive tape such as a drafting tape for drawing or a correction tape is generally composed of a raw material of a weak adhesive tape wound around a long tubular body. It is made by cutting the winding tape with a slitter to a small width. Further, after cutting, a small width winding tape to be each final product is packaged.
[発明が解決しようとする問題点] ところで、上記した長尺の筒状体に巻装されている弱粘
着テープの原反から成る巻テープそのものをスリッター
にかけて裁断する際に、テープの粘着層と表皮との粘着
力が弱いために、巻装されている弱粘着テープが裁断面
でめくれたり巻きずれが生じる欠点があった。[Problems to be Solved by the Invention] By the way, when the winding tape itself made of the raw material of the weak adhesive tape wound around the above-mentioned long tubular body is cut with a slitter, an adhesive layer of the tape is formed. Since the adhesive force with the outer skin is weak, there is a defect that the wound weak adhesive tape may be turned up or misaligned on the cut surface.
また、最終製品となる各小幅の巻テープを包装させる手
間が面倒であった。Further, it is troublesome to wrap each small width winding tape as a final product.
そこで本発明は、前記従来の欠点を除くためになされた
もので、その目的とするところは、小幅の裁断時に弱粘
着テープがめくれることがなくまた巻きずれも生ぜず、
さらに外装被覆の形成とのその剥離も容易な弱粘着テー
プによる小幅の巻テープの製造方法を提供することにあ
る。Therefore, the present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and its purpose is to prevent the weak adhesive tape from being turned over when cutting a narrow width and to prevent winding deviation.
Another object of the present invention is to provide a method for manufacturing a small-width winding tape using a weak adhesive tape, which is easy to form and separate from the outer covering.
[問題点を解決するための手段] 以下、上記の目的を達成するための本発明に係る巻テー
プの製造方法の構成を、実施例に対応する図面を参照し
て説明する。[Means for Solving Problems] Hereinafter, the structure of the method for manufacturing a winding tape according to the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments.
すなわち、まず熱収縮性プラスチックフィルム(2)に
幅広の重畳部(5)を形成させる給送工程を行なわせ
る。すなわち、熱収縮性プラスチックフィルム(2)の
原反(2a)の両側縁部(2d,2d)が重畳されるように両
側部(2e,2e)を内方に折込みつつ給送して、給送方向
に連続する重畳部(5)を形成させる。That is, first, a feeding step of forming a wide overlapping portion (5) on the heat-shrinkable plastic film (2) is performed. That is, both sides (2e, 2e) of the heat-shrinkable plastic film (2) are fed in while folding both sides (2e, 2e) so that both side edges (2d, 2d) of the original (2a) are overlapped. The overlapping portion (5) continuous in the feeding direction is formed.
引続き、つまみ部(6)が突出されかつ軸方向の両端が
解放されている筒状の連続した被覆シート(3a)を形成
させる。すなわち、前記重畳部(5)の形成された前記
プラスチックフィルム(2)の最外殻の巻端(2f)から
幅方向に所定の幅を有しかつ長手方向に連続するつまみ
部(6)が残されているように、重畳部(5)を軸方向
に沿って連続して重着させて、つまみ部(6)が突出さ
れかつ長手方向の両端が解放されている筒状の連続した
被覆シート(3a)を形成させる。(第3図参照) 次に、つまみ部(6)が突出されている単層のプラスチ
ックフィルム(2)から成る筒状の被覆シート(3)に
よって被包封着された長尺の巻テープ(4)を形成させ
る。すなわち、前記被覆シート(3)を、前記弱粘着テ
ープから成る長尺の筒状体(1)に被包させた後加熱収
縮させて、前記筒状体(1)の全外周面が、つまみ部
(6)が突出されている単層のプラスチックフィルム
(2)から成る被覆シート(3)によって被包封着され
た長尺の巻テープ(4)を形成させる。Subsequently, a tubular continuous covering sheet (3a) is formed in which the knob portion (6) is projected and both ends in the axial direction are opened. That is, the knob portion (6) having a predetermined width in the width direction and continuous in the longitudinal direction is formed from the winding end (2f) of the outermost shell of the plastic film (2) on which the overlapping portion (5) is formed. As is left, the overlapping portion (5) is continuously superposed along the axial direction, and the tubular continuous coating in which the knob portion (6) is projected and both ends in the longitudinal direction are opened. Form the sheet (3a). (See FIG. 3) Next, a long winding tape (which is encapsulated by a tubular covering sheet (3) made of a single-layer plastic film (2) having a protruding knob portion (6) ( 4) is formed. That is, the covering sheet (3) is wrapped in a long tubular body (1) made of the weak adhesive tape and then heat-shrinked so that the entire outer peripheral surface of the tubular body (1) is a knob. A long winding tape (4) encapsulated by a covering sheet (3) consisting of a single-layer plastic film (2) with a protruding portion (6) is formed.
最後に、前記長尺の巻テープ(4)を直径方向に裁断し
て多数の環状の最終弱粘着テープ製品としての小幅の巻
テープ(4a)を形成させる。Finally, the long winding tape (4) is cut in the diametrical direction to form a large number of annular winding tapes (4a) having a small width as a final weak adhesive tape product.
[作用] 以上の構成によれば、弱粘着テープから成る裁断前の長
尺の筒状体は、その全外周面が単層のプラスチックフィ
ルムから成る被覆シートによって被包封着されているか
ら、スリッターにかけて裁断する際にもめくれることが
なく、又巻きずれを生ずることもない。さらに、被覆シ
ートにはつまみ部が突出されていてしかもこのつまみ部
は被覆シートの重畳部の側方に形成されているために、
つまみ部を摘んで重畳部を剥離する方向に軽く外力を加
えるだけで、個々の小幅の巻テープから容易に被覆シー
トが剥離する。また、個々の最終弱粘着テープ製品とし
ての小幅の巻テープを、いちいちシュリンク包装する必
要がない。[Operation] According to the above configuration, since the long tubular body made of the weak adhesive tape before being cut has the entire outer peripheral surface thereof encapsulated by the cover sheet made of the single-layer plastic film, It does not turn over when it is cut by a slitter, and it does not cause winding misalignment. Further, since the knob portion is projected on the covering sheet and this knob portion is formed on the side of the overlapping portion of the covering sheet,
The covering sheet can be easily peeled off from each small width winding tape by simply applying an external force in the direction of peeling the overlapping portion by pinching the knob portion. In addition, it is not necessary to shrink-wrap each narrow tape as a final weak adhesive tape product.
[実施例] 以下、図面に示す一実施例によってさらに詳しく説明す
る。[Embodiment] Hereinafter, one embodiment shown in the drawings will be described in more detail.
第1図は、本発明に係る製造方法の工程に用いられる長
尺の巻テープを示す斜視図、第2図は、同上長尺の巻テ
ープに被包する被覆シートを示す斜視図、第3図は、第
2図中I−I線に沿った断面で、重畳部における重着の
状態及びつまみ部の形状を示す部分拡大断面図である。FIG. 1 is a perspective view showing a long winding tape used in the steps of the manufacturing method according to the present invention, and FIG. 2 is a perspective view showing a covering sheet covered with the long winding tape. The drawing is a partial enlarged cross-sectional view showing a state of heavy attachment in the overlapping portion and the shape of the knob portion in a cross section taken along the line I-I in FIG. 2.
巻装された弱粘着テープの原反から成る裁断前の長尺の
筒状体1は、単層の熱収縮性プラスチックフィルム2か
ら成る筒状の被覆シート3によってその全外周面が被包
されかつ加熱封着されて長尺の巻テープ4が形成され
る。そして、前記被覆シート3の表面には長手方向に連
続して重畳部5が形成されており、さらに該重畳部5
は、最外殻の巻端から幅方向に所定の幅を有しかつ軸方
向に連続するつまみ部6を残して軸方向に沿って連続し
て加熱溶着されている。A long tubular body 1 before cutting, which is made of an original fabric of a wound weak adhesive tape, is covered on its entire outer peripheral surface by a tubular covering sheet 3 made of a single-layer heat-shrinkable plastic film 2. The long winding tape 4 is formed by heat sealing. A superposed portion 5 is continuously formed in the longitudinal direction on the surface of the covering sheet 3, and the superposed portion 5 is further formed.
Is heat-welded continuously along the axial direction except for the knob portion 6 which has a predetermined width in the width direction from the winding end of the outermost shell and is continuous in the axial direction.
前記重畳部5の幅及びつまみ部6の幅は適宜構成する。The width of the overlapping portion 5 and the width of the knob portion 6 are appropriately configured.
以上のような構成の長尺の巻テープは、例えば次のよう
な工程で作成される。The long winding tape having the above-described configuration is produced, for example, in the following steps.
すなわち、第4図において、7は熱収縮性フィルム2の
原反2aをシート2bの状態から筒状のシート2cの状態に折
込み加工する加工機であって、その機械的構成はバック
アップロール8、ガイドプレート9、折込みローラ10及
び引抜きローラ11等から成る。That is, in FIG. 4, 7 is a processing machine for folding the raw fabric 2a of the heat-shrinkable film 2 from the state of the sheet 2b to the state of the tubular sheet 2c, and its mechanical structure is a backup roll 8, It comprises a guide plate 9, a folding roller 10 and a pulling roller 11.
まず、熱収縮性プラスチックフィルム2の原反2aの両側
縁部2d,2dが、前記折込み加工機7によって重畳するよ
うに両側部2e,2eを内方に折込みつつ給送して、長手方
向に幅広の重畳部5を形成させる。First, the heat-shrinkable plastic film 2 is fed with the both sides 2e, 2e folded inward so that the two side edges 2d, 2d of the original 2a are superposed by the folding machine 7, and are fed in the longitudinal direction. A wide overlapping portion 5 is formed.
引続き、前記重畳部5において、最外殻の巻端2fから幅
方向に所定の幅(剥離する場合に指先で容易に摘み得る
適宜の幅)を除く重畳部5を、超音波加工機等の加熱溶
着加工機12によって、給送しつつ長手方向に沿って連続
して加熱溶着させる。したがって、この第二工程によっ
て、加熱溶着されている重畳部5の側方につまみ部6が
突出して形成されかつ長手方向の両端が解放されている
筒状の連続した被覆シート3aが形成され、該被覆シート
3aはボビン13に巻取られる。Subsequently, in the overlapping portion 5, the overlapping portion 5 except for a predetermined width in the width direction from the winding end 2f of the outermost shell (an appropriate width that can be easily picked with a fingertip when peeling off) is formed by an ultrasonic processing machine or the like. The heating and welding machine 12 continuously heats and welds along the longitudinal direction while feeding. Therefore, by this second step, the tubular continuous covering sheet 3a is formed in which the knob portion 6 is formed to project to the side of the overlapping portion 5 that is heat-welded and both ends in the longitudinal direction are open, The covering sheet
3a is wound on the bobbin 13.
なお、前述した重畳部5の重着方法は、加熱溶着加工に
よらずに接着加工でもよく、又これは人手をもって代え
ることもできる。The above-described method of attaching the overlapping portions 5 to each other may be a bonding process instead of the heat-welding process, or this may be replaced manually.
しかる後、前記筒状に形成された連続する被覆シート3a
を、被包すべき弱粘着テープから成る裁断前の長尺の筒
状体1の長さに応じて、周知の裁断機によって定尺に裁
断して、第2図に示す個々の被覆シート3を形成させ
る。なお、上記裁断する被覆シートの長手方向の長さ
は、加熱収縮された後に両側端面も被包封着されるよう
に、筒状体1の長さより適宜長く裁断すれば有効であ
る。After that, the continuous covering sheet 3a formed in the tubular shape
Is cut into a fixed length by a known cutting machine according to the length of the long tubular body 1 before cutting which is made of a weak adhesive tape to be encapsulated, and the individual covering sheets 3 shown in FIG. To form. The length in the longitudinal direction of the cover sheet to be cut is effective if it is cut appropriately longer than the length of the tubular body 1 so that both end surfaces are encapsulated after being heat-shrinked.
次に、前記被覆シート3を、第5図に示すように、円管
状に拡げて、弱粘着テープから成る長尺の筒状体1に被
包して、第6図の左図に示すように、被覆シート3aが被
包された筒状体1bを形成させる。続いて、前記筒状体1b
を、第6図に示すように、熱風トンネル或いは、蒸気ト
ンネル等の加温設備14に入れて、筒状体1bに被包されて
いる被覆シート3を加熱収縮させる。そして、前記筒状
体1bの全外周面が、つまみ部6が突出されている単層の
プラスチックフィルム2から成る被覆シート3によって
被包封着された、第1図に示す長尺の巻テープ4が形成
される。Next, as shown in FIG. 5, the covering sheet 3 is expanded into a circular tube shape and covered with a long tubular body 1 made of a weak adhesive tape, as shown in the left diagram of FIG. Then, the tubular body 1b in which the covering sheet 3a is encapsulated is formed. Then, the tubular body 1b
As shown in FIG. 6, it is placed in a heating facility 14 such as a hot air tunnel or a steam tunnel to heat-shrink the covering sheet 3 encapsulated in the tubular body 1b. Then, the entire outer peripheral surface of the tubular body 1b is encapsulated and sealed by a cover sheet 3 made of a single-layer plastic film 2 having a knob portion 6 protruding therefrom. 4 is formed.
さらに、上記したようにして得られた長尺の巻テープ4
は、第7図に示すように、スリッター15にかけられて、
つまみ部6もともに所定の幅狭に裁断されて、第8図に
示すように、個々につまみ部6を有する裁断された被覆
シート3によって被包封着された最終弱粘着テープ製品
としての小幅の巻テープ4aが形成される。そして、この
小幅の巻テープ4aは、第9図に示すように、そのつまみ
部6を指先で摘みつつ溶着されている重畳部5を剥離す
る方向に軽く引けば幅狭の被覆シート3が簡単に剥離さ
れる。Furthermore, the long winding tape 4 obtained as described above
Is hung on the slitter 15 as shown in FIG.
The knob portion 6 is also cut into a predetermined narrow width, and as shown in FIG. 8, a small width as a final weak adhesive tape product which is encapsulated by the cut cover sheet 3 having the knob portion 6 individually. The winding tape 4a is formed. As shown in FIG. 9, the narrow tape 4a can be easily formed into a narrow cover sheet 3 by pulling lightly in the direction of peeling off the welded overlapping portion 5 while pinching the knob portion 6 with a fingertip. Is peeled off.
[発明の効果] 本発明は、以上説明したように、弱粘着テープから成る
長尺の筒状体の全外周面が単層のプラスチックフィルム
から成る被覆シートによって被包封着されているため
に、スリッターにかけて裁断して製品にする際にも、裁
断面において「ばらけ」ることがなく、又巻きずれを生
ずることもなくて、良好な仕上りのつまみ部を有する被
覆シートが被包封着されている弱粘着テープによる小幅
の巻テープの製品を容易に得ることができ、その製造の
工程で不良品が発生しないという効果がある。EFFECTS OF THE INVENTION As described above, according to the present invention, the entire outer peripheral surface of the long tubular body made of the weak adhesive tape is encapsulated by the covering sheet made of the single-layer plastic film. When the product is cut by a slitter and cut into a product, the covering sheet does not "spray" in the cut surface and does not cause winding misalignment. It is possible to easily obtain a product of a small-width winding tape by the weak adhesive tape that has been used, and there is an effect that a defective product does not occur in the manufacturing process.
さらに、弱粘着テープの巻装からなる長尺の筒状体の外
周に、つまみ部を有する被覆シートを加熱収縮により被
着させた後に、これを直径方向に小幅に裁断して、製品
としたので、つまみ部を有する被覆シートによって被覆
された弱粘着テープからなる小幅の巻テープ4aを、効率
良く大量生産させることができる効果がある。Further, after covering the outer periphery of a long tubular body formed by winding a weak adhesive tape with a cover sheet having a knob portion by heat shrinkage, this was cut into a small width in the diameter direction to obtain a product. Therefore, there is an effect that it is possible to efficiently mass-produce the small-width winding tape 4a made of the weak adhesive tape covered with the cover sheet having the knob portion.
また、被覆シートの加熱収縮により、上記つまみ部は小
幅の巻テープ外周の直径方向に立ち上ることから、被覆
シートの剥離も容易になる。In addition, since the knob portion rises in the diametrical direction of the outer circumference of the winding tape having a small width due to the heat shrinkage of the cover sheet, the cover sheet can be easily peeled off.
第1図は、本発明に係る製造工程に用いる長尺の巻テー
プを示す斜視図、第2図は、同上長尺の巻テープに被包
する被覆シートを示す斜視図、第3図は、同上第2図中
I−I線に沿った断面で、重畳部における重着の状態及
びつまみ部の形状を示す部分拡大断面図、第4図は、本
発明による巻テープを製造する工程の一部を示す正面
図、第5図は、同上筒状体に被覆シートを被包する状態
を示す斜視図、第6図は、同上被覆シートを被包された
筒状体を加温設備に入れる状態を示す斜視図、第7図
は、本発明に係る製造工程に用いる長尺の巻テープをス
リッターにかけて裁断する工程を示す斜視図、第8図
は、裁断された小幅の巻テープの製品を示す斜視図、第
9図は、同小幅の巻テープの製品から被覆シートを剥離
する状態を示す斜視図である。 1…弱粘着テープの筒状体、2(2a)…熱収縮性プラス
チックフィルム(原反)、3(3a)…被覆シート(連続
した被覆シート)、4…長尺の巻テープ、4a…小幅の巻
テープ、5…重畳部、6…つまみ部、7…折込み加工
機、12…加熱溶着加工機、13…ボビン、14…加温設備、
15…スリッター。FIG. 1 is a perspective view showing a long winding tape used in a manufacturing process according to the present invention, FIG. 2 is a perspective view showing a covering sheet wrapped with the same long winding tape, and FIG. 2 is a partially enlarged cross-sectional view showing the state of heavy attachment and the shape of the knob portion in the overlapping portion in a cross section taken along the line I-I in FIG. 2, and FIG. 4 shows one step of producing the winding tape according to the present invention. Fig. 5 is a front view showing a portion, Fig. 5 is a perspective view showing a state in which a covering sheet is wrapped in the same tubular body, and Fig. 6 is a cylindrical body in which the same covering sheet is wrapped in a heating facility. FIG. 7 is a perspective view showing a state, FIG. 7 is a perspective view showing a step of cutting a long winding tape used in a manufacturing process according to the present invention by slitting it, and FIG. 8 is a cut narrow width winding tape product. FIG. 9 is a perspective view showing a state in which the covering sheet is peeled off from the product of the winding tape of the same width. That. 1 ... Cylinder of weak adhesive tape, 2 (2a) ... Heat-shrinkable plastic film (original), 3 (3a) ... Coating sheet (continuous coating sheet), 4 ... Long winding tape, 4a ... Small width Winding tape, 5 ... overlapping portion, 6 ... knob portion, 7 ... folding processing machine, 12 ... heat welding processing machine, 13 ... bobbin, 14 ... heating equipment,
15 ... Slitter.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松岡 健一 栃木県下都賀郡壬生町おもちゃのまち1− 5−16 (72)発明者 熱田 幸一 栃木県下都賀郡壬生町幸町2−23−17 (56)参考文献 特開 昭49−44896(JP,A) 実開 昭49−44683(JP,U) 実開 昭49−96383(JP,U) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichi Matsuoka, Mibu-cho, Shimotsuga-gun, Tochigi Prefecture Toy Town 1-5-16 (72) Koichi Atsuta, Koichi Atsuta 2-23-17, Miyuki-cho, Mibu-cho, Shimotsuga-gun, Tochigi (56) ) References JP-A-49-44896 (JP, A) Actually open 49-44683 (JP, U) Actually open 49-96383 (JP, U)
Claims (1)
側縁部が重畳するように両側部を内方に折込みつつ給送
して給送方向に連続する重畳部を形成させる給送工程
と、 前記プラスチックフィルムの重畳部の外側に位置するつ
まみ部となる側縁部を残して、重畳部を長手方向に沿っ
て連続して重着させて、軸方向に沿ってつまみ部が突出
された両端が開放された筒状の連続した被覆シートを形
成させる被覆シート形成工程と、 前記被覆シートを、被包すべき密に巻装された弱粘着テ
ープから成る裁断前の長尺の筒状体に遊外挿させた後加
熱収縮させて、前記筒状体の全外周面が、つまみ部が突
出されている単層のプラスチックフィルムから成る被覆
シートによって被包封着された長尺巻テープを形成させ
る長尺テープ形成工程と、 前記長尺の巻テープを直径方向に裁断して多数の環状の
小幅の巻テープとする裁断工程と、 を具備することを特徴とする巻テープの製造方法。1. A feeding step of feeding both side portions of a heat-shrinkable plastic film while folding both sides inwardly so that both side edges of the original sheet overlap each other to form a continuous overlapping portion in the feeding direction. The side edges of the plastic film, which serve as knobs located outside the overlapped portions, are left, and the overlapped portions are continuously stacked along the longitudinal direction, and the knobs are protruded along the axial direction at both ends. And a covering sheet forming step of forming a cylindrical continuous covering sheet, and the covering sheet is formed into a long cylindrical body before cutting which is composed of a tightly wound weak adhesive tape to be wrapped. After being loosely inserted, it is heated and shrunk to form a long winding tape in which the entire outer peripheral surface of the tubular body is encapsulated by a cover sheet made of a single-layer plastic film with a tab protruding. Forming a long tape, and the long tape Winding tape manufacturing method, characterized by comprising a cutting step of the small width winding tape of a number of annular cutting the wound tape diameter direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62056717A JPH0737272B2 (en) | 1987-03-13 | 1987-03-13 | Winding tape manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62056717A JPH0737272B2 (en) | 1987-03-13 | 1987-03-13 | Winding tape manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63232166A JPS63232166A (en) | 1988-09-28 |
JPH0737272B2 true JPH0737272B2 (en) | 1995-04-26 |
Family
ID=13035236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62056717A Expired - Lifetime JPH0737272B2 (en) | 1987-03-13 | 1987-03-13 | Winding tape manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0737272B2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5442863Y2 (en) * | 1972-07-20 | 1979-12-12 |
-
1987
- 1987-03-13 JP JP62056717A patent/JPH0737272B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63232166A (en) | 1988-09-28 |
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