JP2570366Y2 - Carrier tape reel - Google Patents
Carrier tape reelInfo
- Publication number
- JP2570366Y2 JP2570366Y2 JP1993006704U JP670493U JP2570366Y2 JP 2570366 Y2 JP2570366 Y2 JP 2570366Y2 JP 1993006704 U JP1993006704 U JP 1993006704U JP 670493 U JP670493 U JP 670493U JP 2570366 Y2 JP2570366 Y2 JP 2570366Y2
- Authority
- JP
- Japan
- Prior art keywords
- reel
- side plate
- carrier tape
- core member
- plate member
- 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
- Storage Of Web-Like Or Filamentary Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、各種電子部品、精密機
器部品などの部品を多数収納して保管または運搬するの
に用いられる大口径のキャリアテープ用リール（以下、
リールと略記する。）に関する。BACKGROUND OF THE INVENTION The present invention relates to a reel for a large-diameter carrier tape (hereinafter, referred to as a "tape") used for storing or transporting a large number of parts such as various electronic parts and precision equipment parts.
Abbreviated as reel. ).
【０００２】[0002]
【従来の技術】従来のリールは、一般に、リールのコア
部材が発泡プラスチック又はＥフルート紙等で形成さ
れ、また、側板部材が、チップボール紙又はＥフルート
紙等で形成されている。キャリアテープとは、連続的に
凹部が設けてある長尺シートの凹部に電子部品を収納し
てトップテープで電子部品が落ちないようにシールした
ものであり、キャリアテープは、リールのコア部に巻き
取られ、保管または運搬される。2. Description of the Related Art In a conventional reel, generally, a core member of the reel is formed of foamed plastic or E flute paper, and a side plate member is formed of chip cardboard or E flute paper. Carrier tape is a tape in which electronic components are housed in recesses of a long sheet with continuous recesses and sealed with a top tape so that the electronic components do not fall off.The carrier tape is attached to the core of the reel. Wound and stored or transported.
【０００３】[0003]
【考案が解決しようとする課題】リールは、巻き付ける
キャリアテープが長くなるにつれて、その外径が大きく
なるため、従来のような、側板部材が紙で構成されたリ
ールでは、湿度の影響を受けてリールの側板部材が反り
やすく、キャリアテープをスムーズに巻き取ることがで
きない。また、リールにキャリアテープを巻き取り、又
はリールから繰り出す際、テープの両端面が、リールの
側板部材とこすれ、紙粉を発生し易く、これらの紙粉が
静電気によりキャリアテープに付着するという問題があ
った。Since the outer diameter of the reel becomes larger as the length of the carrier tape to be wound becomes longer, the conventional reel in which the side plate member is made of paper is affected by humidity. The side plate member of the reel is easily warped, and the carrier tape cannot be smoothly wound. Further, when the carrier tape is wound on the reel or unwound from the reel, both end surfaces of the tape are rubbed with the side plate members of the reel, and paper dust is easily generated, and the paper dust adheres to the carrier tape due to static electricity. was there.
【０００４】本考案は、上記従来の問題を解決するもの
であり、リールの外径が大きくなっても、リールの側板
部材が反ることなく、キャリアテープをスムーズに巻き
取ることができ、また、巻き取り又は繰り出し中に紙粉
の生じや、静電気の発生の少ないリールを提供すること
を課題とする。The present invention solves the above-mentioned conventional problems. Even if the outer diameter of the reel is increased, the carrier tape can be smoothly wound without warping the side plate member of the reel. It is another object of the present invention to provide a reel which generates less paper dust during winding or unwinding and less static electricity.
【０００５】[0005]
【課題を解決するための手段】本考案者らは、かかる問
題点を解決するため、試作研究を続けた結果、上記課題
を解決することの出来る実用に優れたリールを開発し
た。すなわち、本考案は、コア部材と側板部材を貼り合
わせてなるキャリアテープ用リールにおいて、径がφ８
０〜φ２２０ｍｍで発泡倍率が２０〜５０倍の発泡プラ
スチック製のコア部材と、径がφ４２０〜φ７５０ｍｍ
で発泡倍率が５〜３０倍の発泡プラスチック製の一対の
側板部材からなり、コア部材の発泡倍率が側板部材の発
泡倍率より高く、かつ前記コア部材及び側板部材の表面
抵抗が１×１０8 〜１×１０11Ωになるように帯電防止
処理されてなるリール、さらに、好ましくは、リールの
側板部材のそれぞれの周縁部の内側面をそれぞれ外側に
傾斜させてなるリールを提供する。Means for Solving the Problems The inventors of the present invention have conducted research on trial manufacture to solve such problems, and as a result, have developed a practically usable reel capable of solving the above problems. That is, the present invention is, in the carrier reel tape made by adhering a core member and the side plate member, diameter φ8
A core member made of foamed plastic having a foaming ratio of 0 to 220 mm and an expansion ratio of 20 to 50 times, and a diameter of 420 to 750 mm
In expansion ratio comprises a pair of side plates member made 5-30 times foam plastic, expansion ratio of the side plate member of the core member origination
A reel which is higher than a foam ratio, and which has been subjected to an antistatic treatment so that the surface resistance of the core member and the side plate member is 1 × 10 8 to 1 × 10 11 Ω, and more preferably, each of the side plate members of the reel Provided is a reel having an inner surface of a peripheral portion inclined outwardly.
【０００６】本考案のリールは、そのコア部材及び側板
部材を発泡プラスチックで形成させ、特に、コア部材を
２０〜５０倍、側板部材を５〜３０倍の範囲の発泡倍率
で構成させることが重要である。コア部材の発泡倍率が
２０倍未満、及び側板部材の発泡倍率が５倍未満である
と、リールの重量が重くなりすぎて運搬する時の取扱い
や、操作性が低下するので実用的でない。また、コア部
材の発泡倍率が５０倍を越えると、落下などの衝撃に対
する強度が低下するだけでなく、リールの取扱いが悪い
とリールのコア部材と側板部材との接着面以外のところ
で破壊して、リールのコア部材と側板部材が破壊するこ
とがあり、側板部材の発泡倍率が３０倍を越えると、落
下などの衝撃に対する強度が低下するので慎重な取扱い
をしなければならない。さらに、コア部材の発泡倍率を
側板部材より高くすることでリールが軽量化される。In the reel of the present invention, it is important that the core member and the side plate members are formed of foamed plastic, and in particular, it is important that the core member has a foaming ratio of 20 to 50 times and the side plate members have a foaming ratio of 5 to 30 times. It is. If the foaming ratio of the core member is less than 20 times and the foaming ratio of the side plate member is less than 5 times, the reel becomes too heavy and handling during transportation and operability are reduced, so that it is not practical. Also, if the expansion ratio of the core member exceeds 50 times, not only the strength against impact such as dropping will be reduced, but if the reel is poorly handled, the core will be broken at a place other than the bonding surface between the core member and the side plate member. If the expansion ratio of the side plate member exceeds 30 times, the core member and the side plate member of the reel may be broken. Further, the reel is reduced in weight by making the expansion ratio of the core member higher than that of the side plate member.
【０００７】また、上記発泡プラスチックのコア部材及
び側板部材の表面は、キャリアテープの巻き取り又は繰
り出し中の静電気発生によるゴミの付着を防止するた
め、その表面抵抗が１×１０8 〜１×１０11Ωになるよ
うに帯電防止処理されることが重要である。表面抵抗が
１×１０8 Ω未満であると、コスト高となって、実用に
供せず、また１×１０11Ωを越えると静電気が発生し、
ゴミが付着し易くなる。帯電防止処理は、通常、上記発
泡プラスチックのコア部材及び側板部材表面に、帯電防
止剤を塗布することにより行われる。Further, the surface of the foamed plastic core member and the side plate member in order to prevent the adhesion of dust due to static electricity generated during winding or unwinding of the carrier tape, a surface resistance of 1 × 10 8 ~1 × 10 It is important that anti-static treatment is performed so that the resistance becomes 11 Ω. If the surface resistance is less than 1 × 10 8 Ω, the cost becomes high and it is not practical, and if it exceeds 1 × 10 11 Ω, static electricity is generated,
Garbage easily adheres. The antistatic treatment is usually performed by applying an antistatic agent to the surface of the foamed plastic core member and side plate member.
【０００８】さらに、一対のリールの側板部材の周縁部
の内側面のそれぞれを外側に傾斜させて先細り状に形成
し、外周部をやや丸みを持たせるとよい。これはキャリ
アテープをリールに巻き取る際、キャリアテープがリー
ルの側板部材の外周部のエッジに引っかかるのを有効に
防止する。本考案における上記傾斜は、平面状であって
もよいし、適度の丸みをもたせた曲面状であってもよ
い。また、周縁部の外側面は、多少内側に傾斜させて先
細り状に形成してもよい。Further, it is preferable that each of the inner side surfaces of the peripheral edge portions of the side plate members of the pair of reels is formed to be tapered by inclining outwardly, so that the outer peripheral portions are slightly rounded. This effectively prevents the carrier tape from being caught on the outer peripheral edge of the side plate member of the reel when the carrier tape is wound on the reel. The inclination in the present invention may be a flat shape or a curved shape with an appropriate roundness. Further, the outer surface of the peripheral portion may be tapered in such a manner that the outer surface is slightly inclined inward.
【０００９】本考案のリールは、コア部材の径がφ８０
〜φ２２０ｍｍ、側板部材の径がφ４２０〜φ７５０ｍ
ｍ、側板部材の厚みが５ｍｍ〜１０ｍｍの範囲に形成さ
れるのが実用上望ましい。The reel according to the present invention has a core member having a diameter of φ80.
~ Φ220 mm , diameter of side plate member is φ420 ~ φ750 m
m , it is practically desirable that the thickness of the side plate member is formed in the range of 5 mm to 10 mm.
【００１０】本考案のリールのコア部材及び側板部材に
使用される発泡プラスチックの素材は、ポリスチレン樹
脂、ポリウレタン樹脂、ポリ塩化ビニル系樹脂等が好適
に使用できる。上記表面抵抗を有する帯電防止処理剤と
しては、例えば、アミン類、リン酸エステル類、アルコ
ール類等の塗布型帯電防止剤が挙げられる。As the material of the foamed plastic used for the core member and the side plate member of the reel of the present invention, polystyrene resin, polyurethane resin, polyvinyl chloride resin or the like can be suitably used. Examples of the antistatic treatment agent having the above-mentioned surface resistance include coating type antistatic agents such as amines, phosphates, and alcohols.
【００１１】以下、添付図面により本考案のリールの一
例を具体的に説明する。図１は、リールに、キャリアテ
ープを巻き取った状態の斜視図であり、図２（ａ）は、
リールの正面図、図２（ｂ）はリールの側面図、図３
（ａ）及び同図（ｂ）は、リールの側板部材の周縁部の
形状を示す部分側面図である。Hereinafter, an example of the reel according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of a state in which a carrier tape is wound on a reel, and FIG.
FIG. 2B is a front view of the reel, FIG.
(A) and (b) are partial side views showing the shape of the peripheral portion of the side plate member of the reel.
【００１２】図に示されるように、キャリアテープ１が
巻つけられた本考案のリール２は、発泡プラスチック製
のコア部材３と側板部材４，４から形成されている。コ
ア部材３及び側板部材４，４は、その表面５が帯電防止
処理され、また、側板部材４，４の周縁部６は、内側面
が外側に傾斜するよう先細り状に形成されている。側板
部材４，４の周縁部６は、図３（ａ）に示すように、内
側に丸みを与えて先細り状としてもよく、また、図３
（ｂ）に示すように、周縁部の内外両面を傾斜させて先
細り状に形成させてもよい。As shown in the figure, a reel 2 of the present invention around which a carrier tape 1 is wound is formed of a core member 3 made of foamed plastic and side plate members 4. The surface 5 of the core member 3 and the side plate members 4 and 4 is subjected to an antistatic treatment, and the peripheral edge portion 6 of the side plate members 4 and 4 is formed in a tapered shape so that an inner surface is inclined outward. As shown in FIG. 3A, the peripheral edge portions 6 of the side plate members 4 and 4 may be rounded inward and tapered.
As shown in (b), the inner and outer surfaces of the peripheral portion may be inclined to be tapered.
【００１３】[0013]
【作用】本考案に係るリールのコア部材及び側板部材
は、発泡プラスチックで形成されているため、軽量で、
取扱いが容易であり、また、リールの外径が大きくて
も、湿度の変化による側板部材の反りが出にくい。さら
に、コア部材及び側板部材の表面は、帯電防止処理され
ているため、キャリアテープの巻き取り又は繰り出し中
に生じるキャリアテープへのゴミの付着が防止される。
さらにまた、リールの周縁部が先細り状に形成されてい
るためキャリアテープの巻き取り繰り出しがスムーズに
行える。Since the core member and the side plate member of the reel according to the present invention are formed of foamed plastic, they are lightweight.
It is easy to handle, and even if the outer diameter of the reel is large, the side plate member is unlikely to warp due to a change in humidity. Furthermore, since the surfaces of the core member and the side plate member are subjected to an antistatic treatment, dust is prevented from adhering to the carrier tape generated during winding or unwinding of the carrier tape.
Furthermore, since the peripheral portion of the reel is formed in a tapered shape, the carrier tape can be smoothly wound and fed.
【００１４】[0014]
【実施例】発泡倍率３０倍の発泡ポリスチレン樹脂を用
い、直径２２０ｍｍ、厚さ９．５ｍｍのリールのコア部
材を成形用金型に射出成形した。次に、発泡倍率１０倍
の発泡ポリスチレン樹脂を用い直径６７０ｍｍ、厚さ
５．０ｍｍで、側板部材の周縁部が図２（ｂ）の６のよ
うな先細り状にしたリールの側板部材を同様に射出成形
した。上記リールのコア部材の外周及び側板部材の両面
に、表面抵抗値が、３〜５×１０10Ω）になるように、
アルコール系帯電防止剤（コルコート株式会社製、商品
名，コルコートＰ）を塗布し、次いで、コア部材と側板
部材をホットメルト系接着剤（コニシ株式会社、商品
名，ＭＵ−９０）で接合した。EXAMPLE A core member of a reel having a diameter of 220 mm and a thickness of 9.5 mm was injection-molded into a molding die using a polystyrene resin having an expansion ratio of 30. Next, a side plate member of a reel having a diameter of 670 mm, a thickness of 5.0 mm, and a peripheral portion of the side plate member having a tapered shape like 6 in FIG. Injection molded. The outer surface of the core member of the reel and both surfaces of the side plate member have a surface resistance of 3 to 5 × 10 10 Ω).
An alcohol-based antistatic agent (manufactured by Colcoat Co., Ltd., trade name: Colcoat P) was applied, and then the core member and the side plate member were joined with a hot melt adhesive (Konishi Co., trade name, MU-90).
【００１５】このリールを１ｍの高さからコンクリート
の床面に落下させても問題がなかった。また、このリー
ルに、幅８ｍｍ、深さ１．３ｍｍのキャリアテープを２
００ｍｍ巻いた。これは、最も良く用いられる外径１７
８ｍｍの紙リールの巻長さの約１６倍に相当するが、そ
れにもかかわらず巻き取り中のリールの側板部の反り、
キャリアテープがリールの側板部の外周部のエッジに引
っかかるなどのトラブルの発生は無かった。さらに、キ
ャリアテープの巻き取り及び繰り出し中の静電気発生量
は、紙リールを使用したときよりも小さい値を示した。[0015] The reel is concreted from a height of 1 m.
There was no problem falling on the floor. Also, a carrier tape having a width of 8 mm and a depth of 1.3 mm is placed on the reel.
It was wound by 00 mm. This is the most commonly used outer diameter 17
Equivalent to about 16 times the winding length of an 8 mm paper reel, but nevertheless, the warpage of the side plate of the reel being wound,
There was no trouble such as the carrier tape getting stuck on the outer edge of the side plate of the reel. Further , the amount of static electricity generated during winding and unwinding of the carrier tape showed a smaller value than when a paper reel was used.
【００１６】帯電圧測定器（シシド静電気株式会社、商
品名，スタチロン・Ｍ）を用いてキャリアテープ巻き取
り中の帯電圧を測定したところ、紙リールでは、３００
０〜５０００Ｖに帯電したのに対し、本考案のリールで
は、１０００Ｖ以下の帯電量であった。［比較例１］ コア部材に、発泡倍率１５倍の発泡ポリスチレン樹脂
を、側板部材に発泡倍率１０倍の発泡ポリスチレン樹脂
を用い、それ以外は実施例と同様にリールを作製したと
ころ、リールの重量が重くなり取扱いや操作性が低下し
た。 ［比較例２］ コア部材に、発泡倍率５５倍の発泡ポリスチレン樹脂
を、側板部材に発泡倍率１０倍の発泡ポリスチレン樹脂
を用い、それ以外は実施例と同様にリールを作製した。
このリールを１ｍの高さからコンクリートに落下させた
ところ、コア部に破損が生じた。 ［比較例３］ コア部材に、発泡倍率１０倍の発泡ポリスチレン樹脂
を、側板部材に発泡倍率３倍の発泡ポリスチレン樹脂を
用い、それ以外は実施例と同様にリールを作製したとこ
ろ、リールの重量が重くなり取扱いや操作性が低下し
た。 ［比較例４］ コア部材に、発泡倍率１０倍の発泡ポリスチレン樹脂
を、側板部材に発泡倍率３３倍の発泡ポリスチレン樹脂
を用い、それ以外は実施例と同様にリールを作製した。
このリールを１ｍの高さからコンクリートに落下させた
ところ、側板部に反りなどが発生し、キャリアテープを
巻き取ることが困難になった。 When the charged voltage during the winding of the carrier tape was measured by using a charged voltage measuring device (Shishido Electrostatic Co., Ltd., trade name: STATILON M), it was found to be 300
In contrast to the charging of 0 to 5000 V, the reel of the present invention had a charging amount of 1000 V or less. [Comparative Example 1] Expanded polystyrene resin having an expansion ratio of 15 times was used for a core member.
, Foamed polystyrene resin with 10 times expansion ratio on the side plate member
And reels were made in the same manner as in the other examples.
At this time, the weight of the reel increases and handling and operability decrease.
Was. [Comparative Example 2] Expanded polystyrene resin having an expansion ratio of 55 times was used for the core member.
, Foamed polystyrene resin with 10 times expansion ratio on the side plate member
, And a reel was produced in the same manner as in the other examples.
This reel was dropped on concrete from a height of 1m.
However, the core portion was damaged. [Comparative Example 3] Expanded polystyrene resin having an expansion ratio of 10 times was used for the core member.
And a polystyrene resin with an expansion ratio of 3 times
Other than that, the reel was made in the same manner as in the example.
In addition, the weight of the reel increases, handling and operability decrease.
Was. [Comparative Example 4] Expanded polystyrene resin having an expansion ratio of 10 times was used for the core member.
The side plate member is expanded polystyrene resin having an expansion ratio of 33 times.
, And a reel was produced in the same manner as in the other examples.
This reel was dropped on concrete from a height of 1m.
However, warpage occurs on the side plate, and the carrier tape
It became difficult to wind up.
【００１７】[0017]
【考案の効果】本考案のリールによれば、軽量で、取
扱いが容易である、リールの外径が大きくても、湿度
の変化による側板部材の反りが出にくく、落下などの衝
撃に対する強度が低下しない、キャリアテープをリー
ルに巻き取り又は繰り出し中の静電気発生量が少ないた
め、ゴミが付着しにくい、リールの周縁部が先細り状
に形成されている場合はキャリアテープの巻き取り繰り
出しがスムーズに行える、キャリアテープを輸送中の
衝撃から保護される等、優れた効果が得られる。According to the reel of the present invention, the reel is lightweight and easy to handle. Even if the outer diameter of the reel is large, the side plate member is less likely to warp due to a change in humidity, and the impact of dropping is reduced.
The strength against the impact does not decrease, the amount of static electricity generated during winding or unwinding the carrier tape on the reel is small, so it is difficult for dust to adhere.If the peripheral edge of the reel is tapered, winding the carrier tape Excellent effects are obtained, such as smooth feeding and protection from impact during transportation of the carrier tape.
【図１】本考案のリールの一例で、巻き取った状態の斜
視図である。FIG. 1 is a perspective view of an example of a reel of the present invention in a state where the reel is wound up.
【図２】本考案のリールの正面図及び側面図である。FIG. 2 is a front view and a side view of the reel of the present invention.
【図３】本考案のリールの側板部材の周縁部の形状を示
す部分側面図である。FIG. 3 is a partial side view showing a shape of a peripheral portion of a side plate member of the reel of the present invention.
１ キャリアテープ ２ リール ３ コア部材 ４，４ 側板部材 ６ 側板部材の周縁部 DESCRIPTION OF SYMBOLS 1 Carrier tape 2 Reel 3 Core member 4, 4 Side plate member 6 Peripheral edge of side plate member
Claims (2)
キャリアテープ用リールにおいて、径がφ８０〜φ２２
０ｍｍで発泡倍率が２０〜５０倍の発泡プラスチック製
のコア部材と、径がφ４２０〜φ７５０ｍｍで発泡倍率
が５〜３０倍の発泡プラスチック製の一対の側板部材か
らなり、コア部材の発泡倍率が側板部材の発泡倍率より
高く、かつ前記コア部材及び側板部材の表面抵抗が１×
１０8 〜１×１０11Ωになるように帯電防止処理されて
なることを特徴とするキャリアテープ用リール。1. A carrier tape reel comprising a core member and a side plate member bonded to each other, the diameter of the carrier tape being φ80 to φ22.
A core member expansion ratio made of 20 to 50 times the foam plastic 0 mm, diameter a pair of side plates members expansion ratio is made of 5 to 30 times the foam plastic Fai420～fai750mm, expansion ratio of the core member plate From the expansion ratio of the member
High, and the surface resistance of the core member and the side plate member is 1 ×
A carrier tape reel which has been subjected to an antistatic treatment so as to have a resistance of 10 8 to 1 × 10 11 Ω.
部の内側面をそれぞれ外側に傾斜させてなる請求項１の
キャリアテープ用リール。2. The reel for a carrier tape according to claim 1, wherein inner side surfaces of respective peripheral portions of the side plate members of the reel are inclined outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993006704U JP2570366Y2 (en) | 1993-01-29 | 1993-01-29 | Carrier tape reel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993006704U JP2570366Y2 (en) | 1993-01-29 | 1993-01-29 | Carrier tape reel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0661874U JPH0661874U (en) | 1994-09-02 |
| JP2570366Y2 true JP2570366Y2 (en) | 1998-05-06 |
Family
ID=11645705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993006704U Expired - Lifetime JP2570366Y2 (en) | 1993-01-29 | 1993-01-29 | Carrier tape reel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2570366Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101472821A (en) * | 2006-06-21 | 2009-07-01 | 日立化成工业株式会社 | Reel |
| WO2007148593A1 (en) * | 2006-06-21 | 2007-12-27 | Hitachi Chemical Company, Ltd. | Reel |
| JP6836290B1 (en) * | 2019-12-12 | 2021-02-24 | 東研化工株式会社 | Tape winding heavy body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63113025A (en) * | 1986-06-04 | 1988-05-18 | Sumitomo Bakelite Co Ltd | Production of reel for carrier table |
| JPH0165269U (en) * | 1987-10-21 | 1989-04-26 | ||
| JP2518897Y2 (en) * | 1991-01-23 | 1996-11-27 | 三菱化学ビーエーエスエフ株式会社 | Reel for IC tape storage tape |
-
1993
- 1993-01-29 JP JP1993006704U patent/JP2570366Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0661874U (en) | 1994-09-02 |
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| Date | Code | Title | Description |
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| EXPY | Cancellation because of completion of term |