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JP4133243B2 - Carrier tape - Google Patents
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JP4133243B2 - Carrier tape - Google Patents

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JP4133243B2
JP4133243B2 JP2002329679A JP2002329679A JP4133243B2 JP 4133243 B2 JP4133243 B2 JP 4133243B2 JP 2002329679 A JP2002329679 A JP 2002329679A JP 2002329679 A JP2002329679 A JP 2002329679A JP 4133243 B2 JP4133243 B2 JP 4133243B2
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wall
tape
inclined support
embossed
inclination angle
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JP2004161330A (en
Inventor
泰次郎 星
雅則 光賀
弘 北岡
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Shin Etsu Polymer Co Ltd
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Shin Etsu Polymer Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、各種の電気部品、電子部品、精密機器部品、半導体パッケージ等からなる物品を収納して搬送、保管、あるいは組立ラインに対する部品の供給に使用されるキャリアテープに関するものである。
【0002】
【従来の技術】
従来のキャリアテープ(エンボスキャリアテープともいう)は、図9や図10に示すように、長尺のテープ1と、このテープ1に形成されて部品を収納する複数のエンボス部4とを備え、工場間の搬送、保管、あるいは表面実装機を備えた組立ラインに対する部品の供給に使用される。
【0003】
テープ1は、例えば樹脂シートからなり、長手方向の一側部に複数の送り孔3が穿孔されている。部品としては、例えば半導体パッケージ、コイル、スイッチ、コンデンサ部品、抵抗器等の電子部品があげられる。また、各エンボス部4は、プレス成形、真空成形、ロータリー成形、圧空成形等により、平面略矩形に凹み成形され、周壁6を形成する各壁7に、傾斜支持部9Aが内方向に向けて突設されており、四隅部の応力を向上させている。各傾斜支持部9Aは、部品を浮かせた状態で支持し、エンボス部4の内底面に部品が接触するのを規制する(特許文献1、特許文献2参照)。
【0004】
【特許文献1】
特開2000−33969号公報
【特許文献2】
特開2000−327025号公報
【0005】
【発明が解決しようとする課題】
従来のキャリアテープは、以上のように各エンボス部4の四隅部以外の部分に傾斜支持部9Aが突設され、外部からの応力に対して四隅部が他の部分に比べて強固なので、四隅部以外の個所、具体的には、各壁7の中央部8に応力が集中しやすい傾向がある。各壁7の中央部8に応力が集中すると、傾斜支持部9Aの支持面が平面視で平坦な形状に形成されているので、各壁7が変形しやすく、その結果、部品の損傷するおそれがある。
【0006】
特に近年の部品、例えばBGA(ball grid array)タイプやCSP(chip size package)タイプの半導体パッケージ、カメラモジュール、通信回路モジュールは、益々小型化・高密度化し、衝撃に弱く損傷しやすいので、各壁7の変形に伴い容易に損傷するおそれが少なくなく、問題である。これらの部品は、高性能であるがゆえに高価であり、機能障害に陥った場合の損害額が大きいので、安全な搬送が急務とされている。
【0007】
本発明は、上記に鑑みなされたもので、例え隅部以外の個所に応力等が作用しても、物品の損傷するおそれがなく、安全に搬送等することのできるキャリアテープを提供することを目的としている。
【0008】
【課題を解決するための手段】
本発明においては上記課題を解決するため、テープに、物品を収納する平面略矩形の収納凹部を形成してその内底面を平坦とし、この収納凹部の四隅部の起立した周壁を、内底面と垂直方向に対して0°〜5°の傾斜角度で徐々に傾くよう傾斜形成したものであって、
収納凹部の周壁を形成する各壁の応力の集中しない非中央部に、傾斜面により物品を支持する複数の傾斜支持部を所定の間隔をおいて形成し、各傾斜支持部を内方向に向けてその幅を各壁の略中間部から内底面に向かうに従い徐々に狭くなるよう形成し、各傾斜支持部の傾斜面を、テープの表面から各壁の略中間部に向かうに従い5°〜10°の傾斜角度で徐々に傾く第一の傾斜面と、各壁の略中間部から内底面に向かうに従い20°〜70°の傾斜角度で徐々に傾く第二の傾斜面とから形成し、この第二の傾斜面により物品を着脱自在に支持するようにしたことを特徴としている。
【0010】
ここで特許請求の範囲における物品には、少なくとも各種の電気部品、電子部品、精密機器部品、半導体パッケージ、回路基板部品、カメラモジュール部品、通信回路モジュール部品、その他の小部品等が含まれる。収納凹部は、複数が主であるが、単数でも良い。平面略矩形には、平面視で正方形、長方形、あるいはこれらに類似する形が含まれる。また、複数の傾斜支持部は、各壁の非中央部に、2、3、4個等設けられる。収納凹部の周壁を傾斜させる場合、収納凹部の隅部やその付近の周壁を傾斜させても良いし、傾斜支持部を備えていない収納凹部の周壁の全部又は一部を傾斜させても良い。
【0011】
本発明によれば、収納凹部の周壁における応力の集中しにくい領域に複数の傾斜支持部を設け、収納凹部の周壁を凹凸に形成して周壁の強度を高めているので、外部から作用する応力や衝撃が分散され、その結果、周壁の応力の集中しやすい領域に応力が集中したり、傾斜支持部が変形等するのを防ぐことができる。
【0012】
【発明の実施の形態】
以下、図面を参照して本発明の好ましい実施形態を説明すると、本実施形態におけるキャリアテープは、図1ないし図3に示すように、テープ1の長手方向に、物品である部品20を収納する複数のエンボス部4を所定の間隔をおいて一列に並設し、各エンボス部4の周壁6を形成する各壁7の中央部8ではない個所、すなわち、応力の集中しない領域に、複数の傾斜支持部9を所定の間隔をおいて形成するようにしている。
【0013】
テープ1は、所定の合成樹脂材料により0.2〜0.5mmの厚さを有する可撓性の長尺に成形され、BGAタイプの半導体パッケージ等からなる部品(図4、図5参照)20を複数のエンボス部4に嵌合収納し、その後、この複数のエンボス部4を覆う長尺のトップテープ2が熱溶着等により剥離可能に貼着されてトップテープ2と共にリール30に巻回される(図1参照)。
【0014】
テープ1を形成する所定の合成樹脂材料としては、例えばポリ塩化ビニル、ポリスチレン、アモルファスポリエチレンテレフタレート、ポリカーボネート、ポリプロピレン、ポリブチレンテレフタレート、ABS樹脂等の他、これらの樹脂にカーボンを練り込んだもの、樹脂シート表面に導電コーティングしたもの、上記樹脂を1種、2種以上ブレンド又はアロイしたもの等があげられる。このテープ1の長手方向の一側部には、複数の送り孔3が所定の間隔をおいて穿孔される。
【0015】
各エンボス部4は、例えばテープ1に断面略U字形の平面略矩形に凹み成形され、図2や図3に示すように、底部中心に丸い検知孔5が穿孔されており、四隅部が丸く面取りされて応力、外力、部品用の逃がし部とされる。このエンボス部4は、上面が開口形成され、四隅部の起立した周壁6が平坦な内底面と垂直方向に対してθ1の傾斜角度、具体的には、0°〜5°の傾斜角度で徐々に傾くよう傾斜形成されており、この傾斜した周壁6が部品20の角部の干渉を有効に回避するよう機能する。
なお、エンボス部4の四隅部の周壁6については、テーパ状になるよう傾斜形成することもできるし、逆テーパ状になるよう傾斜形成することも可能である。
【0016】
複数の傾斜支持部9は、図2や図3に示すように、エンボス部4の起立した周壁6を形成する前後左右の各壁7の非中央部に所定の間隔をおいて2個ずつ内方向に向けて突設されており、各傾斜支持部9の傾斜面に部品20を着脱自在に支持させ、エンボス部4の内底面に部品20の機能部分や電極が接触するのを有効に防止する。各傾斜支持部9は、平面略三角形あるいは略台形に形成され、エンボス部4の各壁7の略中間部から底部に向かうにしたがい徐々に幅が狭くなるよう略台形状に形成される。
【0017】
傾斜支持部9は、図3に示すように、テープ1の表面から各壁7の略中間部に向かうにしたがいθ2の傾斜角度で徐々に傾く第一の傾斜面10と、各壁7の略中間部から底部に向かうにしたがいθ3の傾斜角度で徐々に傾く第二の傾斜面11とを連続的に備える。θ2の傾斜角度は、部品20の飛び出し防止や位置決め確保のため、5°〜10°の範囲とされ、θ1の傾斜角度よりも大きく設定される。換言すれば、θ1の傾斜角度はθ2の傾斜角度よりも小さく設定される。また、θ3の傾斜角度(エンボス部4の内底面への垂線と第二の傾斜面11とが形成する角度)は、自動求心作用により位置決めすることができるよう、20°〜70°、好ましくは40°〜60°の範囲から選択される。
【0018】
このようなキャリアテープは、軟化したシートからなるテープ1を雄雌の金型を使用しテープレス成形、真空成形、ロータリー成形、圧空成形等し、複数のエンボス部4を一定のピッチで順次一体形成し、その後、打ち抜き金型によりテープ1の一側部に複数の送り孔3を順次穿孔することにより、製造することができる。そして、各エンボス部4に部品20が収納され、テープ1の表面にトップテープ2が貼着されることとなる。
【0019】
上記構成によれば、各壁7の幅方向における中央部8に単一の傾斜支持部9を突設するのではなく、各壁7の中央部8以外の個所に複数の傾斜支持部9を中央部8からずらして突設するので、外部からの応力や衝撃が分散され、各壁7の中央部8に応力が集中したり、傾斜支持部9が変形等するのを有効に抑制防止することができる。したがって、エンボス部4の強度を向上させて各壁7が変形するのを抑制し、形状の複雑さにかかわらず、収納した部品損傷のおそれを有効に排除することができる。これは、小型化・高密度化し、衝撃に弱く損傷しやすい部品20の場合には、きわめて有効である。
【0020】
さらに、傾斜支持部9が部品20の底面周縁部を第二の傾斜面11を介し浮かせた状態で搭載支持するので、エンボス部4に部品20が直接干渉するのを防止することが可能となる。したがって、部品20の損傷や汚染を防ぎ、部品20を安全に搬送することができる。
【0021】
次に、図4、図5は本発明の第2の実施形態を示すもので、この場合には、各傾斜支持部9を細いリブ状に形成し、各エンボス部4の周壁6を形成する各壁7の非中央部に複数の傾斜支持部9を所定の間隔をおいて突設し、各傾斜支持部9の第二の傾斜面11に部品20の底面周縁部を浮かせた状態で搭載支持させるようにしている。
傾斜支持部9が形成されていないエンボス部4の周壁6は、エンボス部4の内底面と垂直方向に対してθ1の傾斜角度、具体的には、0°〜5°の傾斜角度で徐々に傾くよう傾斜形成され、部品20の角部の干渉を有効に回避するよう機能する。その他の部分については、上記実施形態と同様であるので説明を省略する。
【0022】
本実施形態においても上記実施形態と同様の作用効果が期待でき、しかも、外部からの衝撃にかかわらず、部品20を安全に搬送することができ、部品20の破損防止が期待できるのは明白である。また、ボール端子等の機能部分が部品20の底面により高密度に設けられ、ピンポイントの接触で支持する必要のある場合にきわめて有効である。
【0023】
次に、図6、図7は本発明の第3の実施形態を示すもので、この場合には、エンボス部4を平面略矩形に形成してその四隅部やその両側付近に平面略L字形の傾斜支持部9を一体形成し、エンボス部4の周壁6を形成する前後左右の各壁7の非中央部に複数の傾斜支持部9を位置させ、各傾斜支持部9の第二の傾斜面11に部品20の底面周縁部を浮かせた状態で搭載支持させるようにしている。その他の部分については、上記実施形態と同様であるので説明を省略する。
【0024】
本実施形態においても上記実施形態と同様の作用効果が期待でき、外部からの衝撃にかかわらず、部品20を安全に搬送することができ、部品20の破損防止を図ることができる。また、収納する部品20の四隅部が面取りやR状に加工されていたり、底面の四隅部に支持する空きスペースを有する部品20を支持する場合等に有効である。さらに、収納する部品20の形状に対応する傾斜支持部9の設計の多様化も大いに期待できる。
【0025】
なお、上記実施形態のトップテープ2は、透明でも良いし、半透明でも良い。また、複数の送り孔3は、テープ1の長手方向の両側部にそれぞれ所定の間隔をおいて穿孔することもできる。さらに、第一の傾斜面10と第二の傾斜面11との間、第二の傾斜面11とエンボス部4の底部との間は、直線的に接続しても良いし、断面略C字形に湾曲させて接続しても良い。
【0026】
【実施例】
以下、本発明に係るキャリアテープの実施例について比較例と共に説明する。
図2に示す実施例のキャリアテープと図9に示す比較例のキャリアテープとをそれぞれ作製し、エンボス部の潰れ強度を図8に示す測定装置の測定子を用いて測定し、測定値を表1にまとめた。
実施例のキャリアテープとしては、ポリエチレンシートからなる厚さ0.3mmのテープを幅寸法2.4mmに加工し、エンボス部の寸法13.6mm角、エンボス部のピッチ16mm、エンボス部の深さ1.8mmとした。
これに対し、比較例のキャリアテープとしては、実施例と同様の寸法により図9に示す構造に構成した。
【0027】
測定装置としては、今田製作所製の卓上型テンシロン(モデルSL−2001)と治具を使用した。測定装置の測定子としては、先端部がR1に加工され、頂角が90°の直角二等辺三角形状の測定子を用いた。
測定方法としては、10箇のエンボス部を任意に選択して上下逆にし、この複数のエンボス部の底部上に上下動可能な測定子を上方から順次押圧することにより、潰れ強度を測定した(図8参照)。測定子の押圧速度は10mm/分とした。
【0028】
【表1】

Figure 0004133243
【0029】
【発明の効果】
以上のように本発明によれば、例え隅部以外の個所に応力等が作用したとしても、物品の損傷するおそれがなく、比較的安全に物品を搬送等することができるという効果がある。すなわち、各壁の幅方向における中央部に単一の傾斜支持部を突設するのではなく、各壁の中央部以外の個所に複数の傾斜支持部を中央部からずらして突設するので、外部からの応力や衝撃が分散され、各壁の中央部に応力が集中したり、傾斜支持部が変形等するのを有効に抑制することができる。したがって、エンボス部の強度を向上させて各壁が変形するのを抑制し、形状の複雑さにかかわらず、収納した物品損傷のおそれを有効に排除することができる。これは、小型化・高密度化し、衝撃に弱く損傷しやすい物品の場合には、有効である。
また、傾斜支持部が物品の底面周縁部を第二の傾斜面を介し浮かせた状態で搭載支持するので、エンボス部に物品が直接干渉するのを防止することが可能となる。したがって、物品の損傷や汚染を防ぎ、物品を安全に搬送することが可能となる。また、各傾斜支持部の第一の傾斜面を、テープの表面から各壁の略中間部に向かうに従い5°〜10°の傾斜角度で徐々に傾けるので、物品の飛び出しを防止したり、位置決めを確保することが可能となる。さらに、第二の傾斜面を、各壁の略中間部から内底面に向かうに従い20°〜70°の傾斜角度で徐々に傾けるので、自動求心作用による物品の位置決めが期待できる。
【図面の簡単な説明】
【図1】本発明に係るキャリアテープの実施形態を示す斜視説明図である。
【図2】本発明に係るキャリアテープの実施形態を示す模式平面図である。
【図3】図2のIII−III線断面図である。
【図4】本発明に係るキャリアテープの第2の実施形態を示す模式平面図である。
【図5】図4のV−V線断面図である。
【図6】本発明に係るキャリアテープの第3の実施形態を示す模式平面図である。
【図7】図6のVII−VII線断面図である。
【図8】本発明に係るキャリアテープの実施例を示す模式説明図である。
【図9】従来のキャリアテープを示す模式平面図である。
【図10】図9のX−X線断面図である。
【符号の説明】
1 テープ
3 送り孔
4 エンボス部(収納凹部)
6 周壁
7 壁
8 中央部(応力集中部)
9 傾斜支持部
9A 傾斜支持部
10 第一の傾斜面
11 第二の傾斜面
20 部品(物品)[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a carrier tape used for storing and transporting, storing, or supplying parts to an assembly line by storing articles composed of various electric parts, electronic parts, precision equipment parts, semiconductor packages, and the like.
[0002]
[Prior art]
A conventional carrier tape (also referred to as an embossed carrier tape) includes a long tape 1 and a plurality of embossed portions 4 that are formed on the tape 1 and store components, as shown in FIGS. Used for transportation between factories, storage, or supply of parts to assembly lines equipped with surface mounters.
[0003]
The tape 1 is made of, for example, a resin sheet, and a plurality of feed holes 3 are formed in one side portion in the longitudinal direction. Examples of the component include electronic components such as a semiconductor package, a coil, a switch, a capacitor component, and a resistor. Further, each embossed portion 4 is recessed and formed into a substantially rectangular plane by press forming, vacuum forming, rotary forming, pressure forming, etc., and inclined support portions 9A are directed inward on each wall 7 forming the peripheral wall 6. Protruding and improving the stress at the four corners. Each inclined support portion 9A supports the component in a floating state and restricts the component from contacting the inner bottom surface of the embossed portion 4 (see Patent Document 1 and Patent Document 2).
[0004]
[Patent Document 1]
JP 2000-33969 A [Patent Document 2]
Japanese Patent Laid-Open No. 2000-327025
[Problems to be solved by the invention]
In the conventional carrier tape, the inclined support portions 9A protrude from the portions other than the four corner portions of each embossed portion 4 as described above, and the four corner portions are stronger than the other portions with respect to external stress. There is a tendency that stress tends to concentrate on a portion other than the portion, specifically, the central portion 8 of each wall 7. When stress concentrates on the central portion 8 of each wall 7, the support surface of the inclined support portion 9A is formed in a flat shape in plan view, so that each wall 7 is easily deformed, and as a result, parts may be damaged. There is.
[0006]
In particular, recent components such as BGA (ball grid array) type and CSP (chip size package) type semiconductor packages, camera modules, and communication circuit modules are becoming smaller and higher in density, and are vulnerable to impact and easily damaged. There is a great possibility that the wall 7 is easily damaged along with the deformation of the wall 7, which is a problem. These parts are expensive because of their high performance, and the amount of damage in the event of a functional failure is large. Therefore, safe transportation is urgently required.
[0007]
The present invention has been made in view of the above, and it is intended to provide a carrier tape that can be safely transported and the like without any risk of damaging an article even if stress or the like acts on a portion other than a corner. It is aimed.
[0008]
[Means for Solving the Problems]
In the present invention, in order to solve the above-mentioned problems, a substantially rectangular storage recess for storing articles is formed on the tape to flatten the inner bottom surface thereof, and the peripheral walls standing at the four corners of the storage recess are defined as the inner bottom surface. It is formed so as to be gradually inclined at an inclination angle of 0 ° to 5 ° with respect to the vertical direction ,
A plurality of inclined support portions for supporting articles by inclined surfaces are formed at predetermined intervals in a non-central portion where stress is not concentrated on each wall forming the peripheral wall of the storage recess, and each inclined support portion is directed inward. The width of each of the inclined support portions is gradually narrowed from the substantially intermediate portion of each wall toward the inner bottom surface, and the inclined surface of each inclined support portion is 5 ° to 10 ° as it goes from the surface of the tape to the substantially intermediate portion of each wall. A first inclined surface that is gradually inclined at an inclination angle of °, and a second inclined surface that is gradually inclined at an inclination angle of 20 ° to 70 ° as it goes from the substantially middle portion of each wall to the inner bottom surface. An article is detachably supported by the second inclined surface .
[0010]
Here, the articles in the claims include at least various electric parts, electronic parts, precision equipment parts, semiconductor packages, circuit board parts, camera module parts, communication circuit module parts, and other small parts. A plurality of storage recesses are mainly used, but a single storage recess may be used. The planar substantially rectangular shape includes a square, a rectangle, or a similar shape in plan view. In addition, a plurality of inclined support portions are provided at the non-central portion of each wall. When the peripheral wall of the storage recess is inclined, the corner of the storage recess or the peripheral wall in the vicinity thereof may be inclined, or all or a part of the peripheral wall of the storage recess not provided with the inclined support portion may be inclined.
[0011]
According to the present invention, since a plurality of inclined support portions are provided in a region where stress is hard to concentrate on the peripheral wall of the storage recess, and the peripheral wall of the storage recess is formed to be uneven, the strength of the peripheral wall is increased. As a result, it is possible to prevent stress from being concentrated in a region where stress on the peripheral wall is likely to concentrate and deformation of the inclined support portion.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. A carrier tape in the present embodiment accommodates a component 20 which is an article in the longitudinal direction of the tape 1 as shown in FIGS. A plurality of embossed portions 4 are arranged side by side in a row at a predetermined interval, and a plurality of embossed portions 4 are formed in a portion that is not the central portion 8 of each wall 7 forming the peripheral wall 6 of each embossed portion 4, that is, in a region where stress is not concentrated The inclined support portions 9 are formed at a predetermined interval.
[0013]
The tape 1 is formed of a predetermined synthetic resin material into a flexible long shape having a thickness of 0.2 to 0.5 mm, and is a part made of a BGA type semiconductor package or the like (see FIGS. 4 and 5) 20. Are fitted and housed in a plurality of embossed portions 4, and then a long top tape 2 covering the plurality of embossed portions 4 is detachably attached by heat welding or the like and wound around a reel 30 together with the top tape 2. (See FIG. 1).
[0014]
As the predetermined synthetic resin material for forming the tape 1, for example, polyvinyl chloride, polystyrene, amorphous polyethylene terephthalate, polycarbonate, polypropylene, polybutylene terephthalate, ABS resin, etc., those obtained by kneading carbon into these resins, resins Examples thereof include those obtained by conducting a conductive coating on the sheet surface and those obtained by blending or alloying one or more of the above resins. A plurality of feed holes 3 are perforated at predetermined intervals on one side of the tape 1 in the longitudinal direction.
[0015]
Each embossed portion 4 is formed, for example, in a concave shape in a substantially rectangular plane having a substantially U-shaped cross section on the tape 1. As shown in FIGS. 2 and 3, a round detection hole 5 is drilled in the center of the bottom, and the four corners are rounded. The chamfer is used as a relief part for stress, external force, and parts. The embossed portion 4 has an opening on the top surface, and the peripheral wall 6 in which the four corners stand up is inclined at an angle of θ 1 with respect to a direction perpendicular to the flat inner bottom surface, specifically, an inclination angle of 0 ° to 5 °. The inclined peripheral wall 6 functions so as to effectively avoid interference at the corners of the component 20.
The peripheral walls 6 at the four corners of the embossed portion 4 can be inclined so as to be tapered, or can be inclined so as to be inversely tapered.
[0016]
As shown in FIG. 2 and FIG. 3, the plurality of inclined support portions 9 are provided two by two at predetermined intervals in the non-center portions of the front, rear, left and right walls 7 that form the upright peripheral wall 6 of the embossed portion 4. Projecting toward the direction, the component 20 is detachably supported on the inclined surface of each inclined support portion 9, and it is possible to effectively prevent the functional portions and electrodes of the component 20 from contacting the inner bottom surface of the embossed portion 4. To do. Each inclined support portion 9 is formed in a substantially triangular shape or a substantially trapezoidal shape, and is formed in a substantially trapezoidal shape so that the width gradually decreases from the substantially middle portion to the bottom portion of each wall 7 of the embossed portion 4.
[0017]
As shown in FIG. 3, the inclined support portion 9 includes a first inclined surface 10 that gradually inclines at an inclination angle of θ 2 from the surface of the tape 1 toward the substantially intermediate portion of each wall 7, and A second inclined surface 11 that is gradually inclined at an inclination angle of θ 3 as it goes from the substantially middle portion to the bottom portion is continuously provided. The inclination angle of θ 2 is in the range of 5 ° to 10 ° to prevent the component 20 from popping out and to ensure positioning, and is set larger than the inclination angle of θ 1 . In other words, the inclination angle of θ 1 is set smaller than the inclination angle of θ 2 . Further, the inclination angle of θ 3 (the angle formed by the perpendicular to the inner bottom surface of the embossed portion 4 and the second inclined surface 11) is 20 ° to 70 °, preferably so that it can be positioned by automatic centripetal action. Is selected from the range of 40 ° to 60 °.
[0018]
Such a carrier tape is a tape 1 formed of a softened sheet using male and female molds, tapeless molding, vacuum molding, rotary molding, pressure molding, etc., and a plurality of embossed parts 4 are sequentially integrated at a constant pitch. Then, a plurality of feed holes 3 can be sequentially punched in one side of the tape 1 by a punching die. Then, the component 20 is accommodated in each embossed portion 4, and the top tape 2 is adhered to the surface of the tape 1.
[0019]
According to the above configuration, instead of providing a single inclined support portion 9 at the central portion 8 in the width direction of each wall 7, a plurality of inclined support portions 9 are provided at locations other than the central portion 8 of each wall 7. Since the projection is shifted from the central portion 8, stress and impact from the outside are dispersed, and the stress is concentrated on the central portion 8 of each wall 7, and the deformation and the like of the inclined support portion 9 are effectively suppressed and prevented. be able to. Therefore, it is possible to improve the strength of the embossed portion 4 to suppress the deformation of the walls 7 and to effectively eliminate the possibility of damage to the housed components regardless of the complexity of the shape. This is extremely effective in the case of the component 20 that is downsized and densified and is susceptible to damage and easily damaged.
[0020]
Furthermore, since the inclined support portion 9 is mounted and supported in a state where the bottom peripheral edge portion of the component 20 is floated via the second inclined surface 11, it is possible to prevent the component 20 from directly interfering with the embossed portion 4. . Therefore, damage and contamination of the component 20 can be prevented, and the component 20 can be transported safely.
[0021]
Next, FIGS. 4 and 5 show a second embodiment of the present invention. In this case, each inclined support portion 9 is formed in a thin rib shape, and the peripheral wall 6 of each embossed portion 4 is formed. A plurality of inclined support portions 9 are projected at predetermined intervals on the non-central portion of each wall 7 and mounted with the bottom peripheral edge of the component 20 floating on the second inclined surface 11 of each inclined support portion 9. I try to support it.
Peripheral wall 6 of the embossed portions 4 inclined support portion 9 is not formed, the inner bottom surface and theta 1 of the inclination angle with respect to the vertical direction of the embossed portions 4, specifically, gradually at an inclination angle of 0 ° to 5 ° And function to effectively avoid interference at the corners of the component 20. The other parts are the same as those in the above embodiment, and the description thereof is omitted.
[0022]
In the present embodiment, it is obvious that the same effect as the above embodiment can be expected, and the component 20 can be safely transported regardless of the impact from the outside, and the damage prevention of the component 20 can be expected. is there. Also, it is very effective when functional parts such as ball terminals are provided at a high density on the bottom surface of the component 20 and need to be supported by pinpoint contact.
[0023]
Next, FIG. 6 and FIG. 7 show a third embodiment of the present invention. In this case, the embossed portion 4 is formed in a substantially rectangular plane, and the plane is substantially L-shaped at the four corners or near both sides thereof. The inclined support portions 9 are integrally formed, and a plurality of inclined support portions 9 are positioned at the non-central portions of the front, rear, left, and right walls 7 that form the peripheral wall 6 of the embossed portion 4, and the second inclined The bottom surface periphery of the component 20 is mounted on and supported by the surface 11. The other parts are the same as those in the above embodiment, and the description thereof is omitted.
[0024]
Also in this embodiment, the same effect as the said embodiment can be anticipated, the components 20 can be safely conveyed irrespective of the impact from the outside, and damage to the components 20 can be prevented. Further, it is effective when the four corners of the component 20 to be stored are chamfered or processed into an R shape, or when the component 20 having an empty space supported at the four corners of the bottom surface is supported. Furthermore, diversification of the design of the inclined support portion 9 corresponding to the shape of the component 20 to be stored can be greatly expected.
[0025]
The top tape 2 of the above embodiment may be transparent or translucent. The plurality of feed holes 3 can also be perforated at predetermined intervals on both sides in the longitudinal direction of the tape 1. Furthermore, between the 1st inclined surface 10 and the 2nd inclined surface 11, between the 2nd inclined surface 11 and the bottom part of the embossed part 4, you may connect linearly, and cross-section is substantially C-shaped. It may be bent and connected.
[0026]
【Example】
Examples of carrier tapes according to the present invention will be described below together with comparative examples.
The carrier tape of the example shown in FIG. 2 and the carrier tape of the comparative example shown in FIG. 9 were respectively produced, and the crushing strength of the embossed part was measured using the measuring element of the measuring device shown in FIG. Summarized in 1.
As the carrier tape of the example, a 0.3 mm thick tape made of a polyethylene sheet was processed to a width dimension of 2.4 mm, the embossed part dimension was 13.6 mm square, the embossed part pitch was 16 mm, and the embossed part depth was 1. 8 mm.
In contrast, the carrier tape of the comparative example was configured in the structure shown in FIG.
[0027]
As a measuring apparatus, a desktop type Tensilon (model SL-2001) manufactured by Imada Seisakusho and a jig were used. As a measuring element of the measuring device, a measuring element having a right isosceles triangular shape whose tip portion was processed into R1 and whose apex angle was 90 ° was used.
As the measurement method, 10 embossed portions were arbitrarily selected and turned upside down, and the crushing strength was measured by sequentially pressing a probe that can move up and down on the bottom of the plurality of embossed portions from above ( (See FIG. 8). The pressing speed of the measuring element was 10 mm / min.
[0028]
[Table 1]
Figure 0004133243
[0029]
【The invention's effect】
As described above, according to the present invention, even if a stress or the like is applied to a portion other than the corner, there is no risk that the article is damaged, and the article can be transported relatively safely. That is, instead of projecting a single inclined support portion at the center in the width direction of each wall, a plurality of inclined support portions project from the central portion at locations other than the central portion of each wall. It is possible to effectively suppress the stress and impact from the outside from being dispersed and the stress from concentrating on the central portion of each wall and the deformation of the inclined support portion. Therefore, the strength of the embossed portion can be improved to suppress deformation of each wall, and the possibility of damaging the stored article can be effectively eliminated regardless of the complexity of the shape. This is effective in the case of an article that is downsized and densified and is vulnerable to impact and easily damaged.
In addition, since the inclined support portion is mounted and supported in a state where the bottom peripheral edge portion of the article is floated via the second inclined surface, it is possible to prevent the article from directly interfering with the embossed portion. Therefore, it is possible to prevent the article from being damaged or contaminated and to safely convey the article. Further, the first inclined surface of each inclined support portion is gradually inclined at an inclination angle of 5 ° to 10 ° from the surface of the tape toward the substantially intermediate portion of each wall, so that the article can be prevented from jumping out or positioned. Can be secured. Furthermore, since the second inclined surface is gradually inclined at an inclination angle of 20 ° to 70 ° from the substantially middle portion of each wall toward the inner bottom surface, positioning of the article by automatic centripetal action can be expected.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing an embodiment of a carrier tape according to the present invention.
FIG. 2 is a schematic plan view showing an embodiment of a carrier tape according to the present invention.
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a schematic plan view showing a second embodiment of a carrier tape according to the present invention.
5 is a cross-sectional view taken along line VV in FIG.
FIG. 6 is a schematic plan view showing a third embodiment of a carrier tape according to the present invention.
7 is a cross-sectional view taken along line VII-VII in FIG.
FIG. 8 is a schematic explanatory view showing an embodiment of a carrier tape according to the present invention.
FIG. 9 is a schematic plan view showing a conventional carrier tape.
10 is a cross-sectional view taken along line XX of FIG.
[Explanation of symbols]
1 Tape 3 Feeding hole 4 Embossed part (storage recess)
6 Perimeter wall 7 Wall 8 Center part (stress concentration part)
9 Inclined support portion 9A Inclined support portion 10 First inclined surface 11 Second inclined surface 20 Parts (article)

Claims (1)

テープに、物品を収納する平面略矩形の収納凹部を形成してその内底面を平坦とし、この収納凹部の四隅部の起立した周壁を、内底面と垂直方向に対して0°〜5°の傾斜角度で徐々に傾くよう傾斜形成したキャリアテープであって、
収納凹部の周壁を形成する各壁の応力の集中しない非中央部に、傾斜面により物品を支持する複数の傾斜支持部を所定の間隔をおいて形成し、各傾斜支持部を内方向に向けてその幅を各壁の略中間部から内底面に向かうに従い徐々に狭くなるよう形成し、各傾斜支持部の傾斜面を、テープの表面から各壁の略中間部に向かうに従い5°〜10°の傾斜角度で徐々に傾く第一の傾斜面と、各壁の略中間部から内底面に向かうに従い20°〜70°の傾斜角度で徐々に傾く第二の傾斜面とから形成し、この第二の傾斜面により物品を着脱自在に支持するようにしたことを特徴とするキャリアテープ。
On the tape, a substantially rectangular storage recess for storing the article is formed, and the inner bottom surface thereof is flattened, and the peripheral walls raised at the four corners of the storage recess are set at 0 ° to 5 ° with respect to the direction perpendicular to the inner bottom surface. A carrier tape that is formed so as to be gradually inclined at an inclination angle ,
A plurality of inclined support portions for supporting articles by inclined surfaces are formed at predetermined intervals in a non-central portion where stress is not concentrated on each wall forming the peripheral wall of the storage recess, and each inclined support portion is directed inward. The width of each of the inclined support portions is gradually narrowed from the substantially intermediate portion of each wall toward the inner bottom surface, and the inclined surface of each inclined support portion is 5 ° to 10 ° as it goes from the surface of the tape to the substantially intermediate portion of each wall. A first inclined surface that is gradually inclined at an inclination angle of °, and a second inclined surface that is gradually inclined at an inclination angle of 20 ° to 70 ° as it goes from the substantially middle portion of each wall to the inner bottom surface. A carrier tape, wherein an article is detachably supported by a second inclined surface .
JP2002329679A 2002-11-13 2002-11-13 Carrier tape Expired - Lifetime JP4133243B2 (en)

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