JPH0311212B2 - - Google Patents
Info
- Publication number
- JPH0311212B2 JPH0311212B2 JP61029028A JP2902886A JPH0311212B2 JP H0311212 B2 JPH0311212 B2 JP H0311212B2 JP 61029028 A JP61029028 A JP 61029028A JP 2902886 A JP2902886 A JP 2902886A JP H0311212 B2 JPH0311212 B2 JP H0311212B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter pipe
- small
- stiffness
- straw
- stage
- 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
- Table Equipment (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、二段式伸縮自在ストローの改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a two-stage telescoping straw.
従来、保管、携帯、運搬、飲料容器への付着等
に便利なように保管時等では短く、又吸引等の場
合は引伸ばして長くできるように、大径パイプ内
に小径パイプが挿入された二段式伸縮自在ストロ
ーが提案されている。
Conventionally, a small-diameter pipe was inserted into a large-diameter pipe to make it short for storage, convenient for storage, portability, transportation, attachment to beverage containers, etc., and to be able to be stretched and made longer for suction, etc. A two-stage retractable straw has been proposed.
さらにこのような二段式伸縮自在ストローにお
いて、小径パイプの大径パイプに入る端部にラツ
パ状の拡開部や凸部を設けることによつて、ま
た、材質のスチフネス等の選択をしてこの拡開部
や凸部が大径パイプの内面に弾性をもつて密着す
るようにして、重力程度で両パイプがはずれるこ
とのないようにしたものも提案されている（例え
ば特開昭60−256414）。 Furthermore, in such a two-stage retractable straw, by providing a flared part or a convex part at the end of the small-diameter pipe entering the large-diameter pipe, and by selecting the stiffness of the material, etc. It has also been proposed that the expanded portion or convex portion elastically adhere tightly to the inner surface of the large-diameter pipe, so that the two pipes will not come apart due to gravity (for example, 256414).
このような二段式伸縮自在ストローには、耐水
性、耐食性、成形性に優れたポリプロピレンやポ
リエチレン、なかでも寸法精度の良好なポリプロ
ピレンを材質として多く用いられているが、スタ
ンドパウチや容器に使用されるアルミ箔を突刺す
際に、貫通する前に先端が折曲つてしまうという
問題があつた。
These two-stage retractable straws are often made of polypropylene or polyethylene, which have excellent water resistance, corrosion resistance, and moldability, and especially polypropylene, which has good dimensional accuracy. When piercing aluminum foil, there was a problem in that the tip would bend before piercing the aluminum foil.
本発明はかかる事情に鑑みなされたものであ
り、その要旨は、大径パイプ内に該大径パイプの
内面に、凸部又はラツパ状拡開部が密着するよう
に小径パイプが挿入された二段式伸縮自在ストロ
ーにおいて、前記大径パイプはメルトフローイン
デツクスが２〜14ｇ／10minでスチフネスが8000
〜13000Kg／cm3のプロピレン系ポリマーよりなり、
前記小径パイプはメルトフローインデツクスが２
〜10ｇ／10minでスチフネスが15000Kg／cm2以上
の耐衝撃性スチレン系ポリマーよりなる二段式伸
縮自在ストロー、である。
The present invention was made in view of the above circumstances, and its gist is that a small-diameter pipe is inserted into a large-diameter pipe so that the convex part or the flared part is in close contact with the inner surface of the large-diameter pipe. In the stage type telescopic straw, the large diameter pipe has a melt flow index of 2 to 14 g/10 min and a stiffness of 8000.
~13000Kg/ cm3 made of propylene polymer,
The small diameter pipe has a melt flow index of 2.
This is a two-stage telescopic straw made of impact-resistant styrene polymer with a stiffness of 15,000 Kg/cm 2 or more at ~10 g/10 min.
本発明において両パイプとも押出成形を採用で
きるが、大径パイプはプロピレン系ポリマーから
なりメルトフローインデツクスが２〜14ｇ／
10min（JIS K6758）であり、２ｇ／10min未満で
は生産性が低下し、14ｇ／10minを超えると寸法
精度が悪化する。またスチフネスは8000〜13000
Kg／cm2（ASTM D747）であり、8000Kg／cm2以
上であることから一応のこしの強さがもたらさ
れ、13000Kg／cm2以下であることから弾力性を有
し小径パイプの外径、小径パイプの端部の拡開部
や凸部の外径が大径パイプの内径より若干大きく
ても円滑な伸縮が自在にできる。 In the present invention, extrusion molding can be used for both pipes, but the large diameter pipe is made of propylene polymer and has a melt flow index of 2 to 14 g/
10min (JIS K6758), productivity decreases when it is less than 2g/10min, and dimensional accuracy deteriorates when it exceeds 14g/10min. Also, the stiffness is 8000 to 13000.
Kg/cm 2 (ASTM D747), and since it is 8000Kg/cm 2 or more, it has a certain degree of stiffness, and since it is 13000Kg/cm 2 or less, it has elasticity and the outer diameter of small diameter pipes. Even if the outer diameter of the expanded portion or convex portion at the end of the small-diameter pipe is slightly larger than the inner diameter of the large-diameter pipe, it can freely expand and contract smoothly.
又、前記プロピレン系ポリマーとしては、アイ
ソタクチツクプロピレンホモポリマー、エチレン
濃度40重量％以下のエチレンプロピレン共重合体
などが挙げられる。 Examples of the propylene-based polymer include isotactic propylene homopolymers and ethylene-propylene copolymers with an ethylene concentration of 40% by weight or less.
一方、小径パイプはプロピレン系ポリマーより
剛性の高い耐衝撃性スチレン系ポリマーから構成
されメルトフローインデツクスが２〜10ｇ／
10min（ASTM D1238）であり、やはり２ｇ／
10min未満では生産性が低下し、10ｇ／10minを
超えると寸法精度が悪化する。またスチフネスは
15000Kg／cm2（ASTM D747）以上であり、この
こしの強さと、大径パイプの弾力性の組合せによ
り、内外管間の密着と円滑な伸縮が自在にでき
る、この小径パイプによりスタンドパウチや容器
に使用されるアルミ箔を突刺し貫通することもで
きることを見出したのであり、ストローとしての
機能を果せるが、耐衝撃性スチレン系ポリマーに
代えてスチレンホモポリマーを材質とするパイプ
では、成形における切断時やアルミ箔を突刺す際
にそのスチレン製管の端部が割れてしまう。 On the other hand, small-diameter pipes are made of high-impact styrene polymer, which is more rigid than propylene polymer, and have a melt flow index of 2 to 10 g/
10min (ASTM D1238) and 2g/
If it is less than 10 min, productivity will decrease, and if it exceeds 10 g/10 min, dimensional accuracy will deteriorate. Also, stiffness is
15000Kg/cm 2 (ASTM D747) or more, and the combination of this strain strength and the elasticity of the large diameter pipe allows for close contact between the inner and outer pipes and smooth expansion and contraction.This small diameter pipe can be used for stand pouches and containers. They discovered that it is possible to pierce through the aluminum foil used in plastic straws, and it can function as a drinking straw. The end of the styrene tube cracks when the aluminum foil is pierced.
又、前記耐衝撃性スチレン系ポリマーとは、ス
チレン及びゴム成分の共重合体、スチレン、ゴム
成分及び他成分の共重合体、スチレンホモポリマ
ー及びゴム成分のブレンド品などであり、いわゆ
る耐衝撃性ポリスチレン（ハイインパクトポリス
チレン）、ABS樹脂などが挙げられる。 In addition, the impact-resistant styrenic polymer includes a copolymer of styrene and a rubber component, a copolymer of styrene, a rubber component, and other components, a blend product of a styrene homopolymer and a rubber component, and so-called impact-resistant styrenic polymers. Examples include polystyrene (high impact polystyrene) and ABS resin.
本発明の二段式伸縮自在ストローによれば、大
径パイプの一応のこしの強さにより大径パイプの
形状が保持され、大径パイプの弾力性と小径パイ
プのこしの強さにより空気、液洩れ防止の密着と
円滑な伸縮が自在にできる。 According to the two-stage telescopic straw of the present invention, the shape of the large-diameter pipe is maintained due to the stiffness of the large-diameter pipe, and air and liquid leakage are prevented due to the elasticity of the large-diameter pipe and the stiffness of the small-diameter pipe. Allows for preventive adhesion and smooth expansion and contraction.
又、小径パイプによりスタンドパウチや容器に
使用されるアルミ箔でも突刺すことができる。な
お小径パイプの大径パイプに入る端部にラツパ状
の拡開部又は凸部を設けることにより空気洩れ、
液洩れを防ぐことができ、かくすることにより大
径パイプの弾力性と小径パイプのこしの強さの組
合せ効果がさらに生じ、また断面方向における寸
法精度や真円性の許容範囲も大きくなる。 Also, the small diameter pipe allows it to pierce even aluminum foil used for stand pouches and containers. In addition, air leakage can be prevented by providing a flared or convex portion at the end of the small-diameter pipe that enters the large-diameter pipe.
Liquid leakage can be prevented, thereby further producing a combined effect of the elasticity of the large-diameter pipe and the stiffness of the small-diameter pipe, and also increasing the allowable range of dimensional accuracy and circularity in the cross-sectional direction.
本発明の二段式伸縮自在ストローは保管、携
帯、運搬、飲料容器への付着等に便利であり、突
刺性が優れている。
The two-stage retractable straw of the present invention is convenient for storage, carrying, transporting, attaching to a beverage container, etc., and has excellent piercing properties.
Claims (1)
又はラツパ状拡開部が密着するように小径パイプ
が挿入された二段式伸縮自在ストローにおいて、
前記大径パイプはメルトフローインデツクスが２
〜14ｇ／10minでスチフネスが8000〜13000Kg／
cm2のプロピレン系ポリマーよりなり、前記小径パ
イプはメルトフローインデツクスが２〜10ｇ／
10minでスチフネスが15000Kg／cm2以上の耐衝撃
性スチレン系ポリマーよりなる二段式伸縮自在ス
トロー。1. A two-stage telescoping straw in which a small-diameter pipe is inserted into a large-diameter pipe so that the convex part or the flared part is in close contact with the inner surface of the large-diameter pipe,
The large diameter pipe has a melt flow index of 2.
~14g/10min Stiffness is 8000~13000Kg/
cm 2 of propylene-based polymer, the small-diameter pipe has a melt flow index of 2 to 10 g/cm2.
A two-stage retractable straw made of impact-resistant styrene polymer with a stiffness of 15,000 kg/cm 2 or more at 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2902886A JPS62186815A (en) | 1986-02-14 | 1986-02-14 | Two-step type freely extensible straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2902886A JPS62186815A (en) | 1986-02-14 | 1986-02-14 | Two-step type freely extensible straw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62186815A JPS62186815A (en) | 1987-08-15 |
| JPH0311212B2 true JPH0311212B2 (en) | 1991-02-15 |
Family
ID=12264957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2902886A Granted JPS62186815A (en) | 1986-02-14 | 1986-02-14 | Two-step type freely extensible straw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62186815A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2582005B2 (en) * | 1991-05-21 | 1997-02-19 | 東洋キャップ製造株式会社 | Double-pipe telescopic straw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60256414A (en) * | 1984-05-31 | 1985-12-18 | 昭和電工株式会社 | Two-stage type freely extensible straw |
-
1986
- 1986-02-14 JP JP2902886A patent/JPS62186815A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62186815A (en) | 1987-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |