JPS60256414A - Two-stage type freely extensible straw - Google Patents
Two-stage type freely extensible strawInfo
- Publication number
- JPS60256414A JPS60256414A JP10969084A JP10969084A JPS60256414A JP S60256414 A JPS60256414 A JP S60256414A JP 10969084 A JP10969084 A JP 10969084A JP 10969084 A JP10969084 A JP 10969084A JP S60256414 A JPS60256414 A JP S60256414A
- Authority
- JP
- Japan
- Prior art keywords
- diameter pipe
- straw
- small
- pipe
- large diameter
- 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.)
- Granted
Links
Landscapes
- Table Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、二段式伸縮自在ストロ−の改良に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION 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
く出来るように大径のパイプと小径のパイプを組合わせ
た二段式伸縮自在ストロ−が提案されている。Conventionally, two types of pipes were used, which were a combination of a large diameter pipe and a small diameter pipe, so that they could be short for storage, etc., and stretched to a longer length for suction, etc., for convenience in storage, portability, transportation, attachment to beverage containers, etc. A stepped telescoping straw has been proposed.
このような二段式伸縮自在ストロ−のうち、小径のパイ
プの端部にラッパ状の拡開部を設けるととによって、大
径のパイプに小径のパイプを挿入した時に、前記の拡開
部が大径のパイプの内面に圧着されるようにし、これに
よって二段式伸縮自在ストロ−の全体の長さがいかなる
長さの場合でも重力程度ではずれることのないようにし
たものも提案されている。In such a two-stage telescoping straw, a trumpet-shaped expansion part is provided at the end of the small diameter pipe, so that when the small diameter pipe is inserted into the large diameter pipe, the expansion part It has also been proposed that the straw be crimped onto the inner surface of a large-diameter pipe, so that no matter how long the entire length of the two-stage retractable straw is, it will not come off due to gravity. There is.
一方、このような二段式伸縮自在ストロ−では、吸引時
に息や吸引液のもれが最低限度になるように防止する必
要がある。そのため大径のパイプの内面と小径のパイプ
の外面が何らかの手段によって密着するようにする必要
がある。On the other hand, in such a two-stage retractable straw, it is necessary to minimize leakage of breath or suction liquid during suction. Therefore, it is necessary to bring the inner surface of the large diameter pipe and the outer surface of the small diameter pipe into close contact with each other by some means.
前述の小径のパイプの端部に拡開部を設けた二段式伸縮
自在ストロ−は、との拡開部が大径のパイプの内面に密
着するので息や吸引液のもれを防止することになシ好ま
しい。しかしこの小径のパイプの拡開部の大径のパイプ
の内面への密着を完壁なものとすることは非常に困難な
問題で６！０生所収率にも影響を与えることになる。The above-mentioned two-stage retractable straw has an expanded part at the end of the small-diameter pipe, and the expanded part fits tightly against the inner surface of the large-diameter pipe, preventing leakage of breath or suction fluid. Especially desirable. However, it is very difficult to make perfect contact between the enlarged part of the small diameter pipe and the inner surface of the large diameter pipe, and this will affect the 6!0 incubation yield.
本発明は、以上のような事情に鑑みなされたもので大径
のパイプに端部を拡開した小径のパイプを挿入したスト
ロ−で小径のパイプの拡開部の大径のパイプの内面への
密着性が完全になるように大径のパイプと小径のパイプ
の材質を夫々見出し限定したことを特徴とする二段式伸
縮自在ストロ−を提供することを目的とするものである
。The present invention has been made in view of the above circumstances, and uses a straw in which a small diameter pipe with an enlarged end is inserted into a large diameter pipe to the inner surface of the large diameter pipe at the enlarged end of the small diameter pipe. An object of the present invention is to provide a two-stage retractable straw, which is characterized in that the materials of the large-diameter pipe and the small-diameter pipe are selected and limited to ensure perfect adhesion.
以下本発明の二段式伸縮自在ストロ−の詳細な内容を説
明する。The details of the two-stage telescoping straw of the present invention will be explained below.
図面は、本発明の二段式伸縮自在ストロ−の一部を拡大
して示した断面図で、ｌは大径のパイプ、２はその端部
に拡開部２ａを設けた小径のパイプである。この図のよ
うに小径のパイプ２に形成されだ拡開部２ａが大径のパ
イプｌの内面に密着するような構成になっている。しか
も大径のパイプ１はメルトフローインデックスが７〜１
４ｇ／１０ｍ１ｎ（Ｊ工Ｓ Ｋ ６７５８ ）でステイ
フネス（Ａ Ｓ Ｔ Ｍ Ｄ７４７１））が１００００
〜１３０００ Ｋ ｇ／ ｃ ｍ２のプロピレン系ポリ
マーにて形成され、小径のパイプはメルトフローインデ
ックス７〜１４ｇ／１０ｍ１ｎでステイフネス（ＡＳＴ
Ｍ Ｄ７４７ ）が１３５００Ｋ ｇ ／ ｃｍ２以上
のプロピレンホモポリマーにて形成されている。The drawing is an enlarged cross-sectional view of a part of the two-stage retractable straw of the present invention, where l is a large diameter pipe, and 2 is a small diameter pipe with an expanded portion 2a at its end. be. As shown in this figure, the expanded portion 2a formed on the small diameter pipe 2 is configured to come into close contact with the inner surface of the large diameter pipe l. Moreover, the large diameter pipe 1 has a melt flow index of 7 to 1.
Stiffness (ASTM D7471)) is 10,000 at 4g/10m1n (J Engineering SK 6758)
Made of propylene-based polymer with ~13,000 K g/cm2, the small diameter pipe has a melt flow index of 7-14 g/10 m1n and a stiffness (AST)
MD747) is made of propylene homopolymer with a weight of 13,500K g/cm2 or more.
このように図面に示すような形状で前記のような材料に
て形成された大径のパイプ１および小径のパイプ２を大
径のパイプ１の内径が小径のパイプ２の拡開部２ａの外
径よりも僅かに小さく、例えば１ｍｍ〜１３０００程度
小さくしても、大径のパイプ１内に小径のパイプの拡開
部を容易に挿入できて二段式伸縮自在パイプを形成する
。In this way, the large-diameter pipe 1 and the small-diameter pipe 2, which have the shape shown in the drawing and are made of the above-mentioned materials, are placed so that the inner diameter of the large-diameter pipe 1 is outside the enlarged part 2a of the small-diameter pipe 2. Even if it is slightly smaller than the diameter, for example by about 1 mm to 13,000, the enlarged part of the small diameter pipe can be easily inserted into the large diameter pipe 1 to form a two-stage telescopic pipe.
以上のような材料つまり大径のパイプ１としてステイフ
ネスが１００００−１３０００Ｋｇ／ ｃｍ２０プロピ
レン系ポリマーを選ぶことによって大径のパイプを弾力
性と一応のこしの強さのあるものとし、前述めように大
径のパイプの内径よシも僅かに大である小径のパイプの
拡開部を挿入することを可能にした。又小径のパイプと
してスティフネスが１３５００ Ｋ ｇ ／ ｃｍ２以
上のグロビレンホモポリマーヲｊ用いたことによって拡
開部の弾力性を適度なものとし、前記の材質の大径のパ
イプとあわせてその内面と拡開部との密着が完全なもの
になるようにした。By selecting a propylene-based polymer with a stiffness of 10,000-13,000 kg/cm20 for the large-diameter pipe 1 as described above, the large-diameter pipe can be made to have elasticity and a certain degree of stiffness. The inner diameter of the pipe is also slightly larger, making it possible to insert the enlarged part of a small-diameter pipe. In addition, by using a globylene homopolymer with a stiffness of 13,500 kg/cm2 or more for the small diameter pipe, the elasticity of the expanded part is made appropriate, and together with the large diameter pipe made of the above material, the inner surface and I made sure that the contact with the expansion part was perfect.
又両パイプをメルトフローインデックスが７〜１４ｇ／
１０ｍ１ｎの合成樹脂材としたのは、成形性を考慮に入
れてのことで、もしもメルトフローインデックスが７ｇ
７１０ｍ１ｎ未満の場合には生産性が半減し又１４ｇ／
１０ｍ１ｎをこえるものは寸法精度が極度に悪化しいず
れも好ましくない。Also, the melt flow index of both pipes is 7 to 14 g/
The reason for using a 10ml synthetic resin material was to take moldability into account, and if the melt flow index was 7g.
If it is less than 710 m1n, the productivity will be halved and the productivity will be reduced to 14 g/n.
If it exceeds 10 m1n, the dimensional accuracy will be extremely poor, and any of them is not preferable.
以上述べた大径のパイプに用いられメルトフローインデ
ックスが７〜１４ｇ／１０ｍ１ｎでステイフネスカ１０
０００〜１３０００のプロピレン系ポリマーの例として
はエチレン濃度が１０〜４０重量パーセントのエチレン
プロピレンブロックコポリマーやプロピレンホモポリマ
ーに低分子量ポリエチレンをブレン゛ドしたもの等がち
る。Stifnesca 10 is used for the large diameter pipes mentioned above and has a melt flow index of 7 to 14 g/10 m1n.
Examples of propylene polymers having a molecular weight of 000 to 13,000 include ethylene propylene block copolymers having an ethylene concentration of 10 to 40 weight percent, and propylene homopolymers blended with low molecular weight polyethylene.
前記材料のうちエチレンプロピレンブロックコポリマー
においてエチレンの濃度が１０重量パーセント未満の場
合には柔軟性が不足する。又４０重量パーセントを越え
ると柔軟性があシすぎるので好ましくない。Among the materials, if the ethylene propylene block copolymer has an ethylene concentration of less than 10 weight percent, flexibility is insufficient. Moreover, if it exceeds 40% by weight, the flexibility becomes too low, which is not preferable.
尚大径のパイプ、小径のパイプの材料として高密度ポリ
エチレンを用いた場合ステイフネスが不足し寸法精度と
真円性が不足する。また低密度ポリエチレンを用いた場
合は一層ステイフネスが不足し又寸法精度、真円性も不
足する。Furthermore, when high-density polyethylene is used as a material for large-diameter pipes and small-diameter pipes, stiffness is insufficient, and dimensional accuracy and roundness are insufficient. Furthermore, when low-density polyethylene is used, the stiffness is further insufficient, and the dimensional accuracy and roundness are also insufficient.
以上説明したように本発明の二段式伸縮自在パイプは、
大径パイプと小径パイプの夫々に適切な材料を用いたこ
とによって大径パイプの内面と小径パイプの拡開部の密
着性が完全になり、息や吸引液のもれを生ずることはな
い。また成形上も好ましく生産性のよいパイプを得るこ
とが出来る。As explained above, the two-stage telescoping pipe of the present invention is
By using appropriate materials for each of the large-diameter pipe and the small-diameter pipe, the inner surface of the large-diameter pipe and the enlarged portion of the small-diameter pipe have perfect adhesion, and no leakage of breath or suction fluid occurs. In addition, a pipe that is favorable in terms of molding and has good productivity can be obtained.
図面は本発明のストロ−の断面図である。
１・・・大径のパイプ、２・・・小径のパイプ、２ａ・
・・拡開部。
出願人 昭和電工株式会社
代理人 向 寛 二The drawing is a sectional view of the straw of the present invention. 1...Large diameter pipe, 2...Small diameter pipe, 2a.
... Expansion part. Applicant Showa Denko K.K. Agent Hiroshi Mukai
Claims (1)
着するように小径パイプを挿入された二段式伸縮自在ス
トロ−において、前記大径パイプがメルトフローインデ
ックスが７〜１４ｇ ／ １０ｍ１ｎでステイフネスが
１００００〜１３０００ Ｋ ｇ／ ｃ ｍ２のプロピ
レン系ポリマーよりなシ、前記小径のパイプがメルトフ
ローインデックスが７〜１４ｇ ／ １０ｍ ｉｎでス
テイフネスが１３５００ Ｋ ｇ／ ａ ｍ２以上のプ
ロピレンホモポリマーよシなる二段式伸縮自在ストロ−
０In a two-stage telescoping straw in which a small diameter pipe is inserted into a large diameter pipe so that the expanded end of the large diameter pipe is in close contact with the inner surface of the large diameter pipe, the large diameter pipe has a melt flow index of 7 to 14 g/ The small diameter pipe is made of a propylene homopolymer with a melt flow index of 7 to 14 g/10 m in and a stiffness of 13,500 K g/am or more. Two-stage telescoping straw
0
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10969084A JPS60256414A (en) | 1984-05-31 | 1984-05-31 | Two-stage type freely extensible straw |
| US06/738,651 US4657182A (en) | 1984-05-31 | 1985-05-28 | Two-stage type of freely elongatable sucking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10969084A JPS60256414A (en) | 1984-05-31 | 1984-05-31 | Two-stage type freely extensible straw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60256414A true JPS60256414A (en) | 1985-12-18 |
| JPS6328606B2 JPS6328606B2 (en) | 1988-06-09 |
Family
ID=14516721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10969084A Granted JPS60256414A (en) | 1984-05-31 | 1984-05-31 | Two-stage type freely extensible straw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60256414A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986007529A1 (en) * | 1985-06-21 | 1986-12-31 | Showa Denko Kabushiki Kaisha | Suction pipe |
| JPS62186815A (en) * | 1986-02-14 | 1987-08-15 | 昭和電工株式会社 | Two-step type freely extensible straw |
| JPS62192123A (en) * | 1986-02-19 | 1987-08-22 | 三陽紙器株式会社 | Double straw for beverage |
| JPH0576445A (en) * | 1991-05-21 | 1993-03-30 | Toyo Cap Kk | Double pipe type expansible straw |
| JP2006136657A (en) * | 2004-11-15 | 2006-06-01 | Showa Denko Plastic Products Co Ltd | Multistep straw |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6685103B2 (en) | 2000-03-23 | 2004-02-03 | Showa Denko Plastic Products Co., Ltd. | Straw tube, and apparatus and method for producing the same |
-
1984
- 1984-05-31 JP JP10969084A patent/JPS60256414A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986007529A1 (en) * | 1985-06-21 | 1986-12-31 | Showa Denko Kabushiki Kaisha | Suction pipe |
| JPS62186815A (en) * | 1986-02-14 | 1987-08-15 | 昭和電工株式会社 | Two-step type freely extensible straw |
| JPH0311212B2 (en) * | 1986-02-14 | 1991-02-15 | Showa Denko Kk | |
| JPS62192123A (en) * | 1986-02-19 | 1987-08-22 | 三陽紙器株式会社 | Double straw for beverage |
| JPH0576445A (en) * | 1991-05-21 | 1993-03-30 | Toyo Cap Kk | Double pipe type expansible straw |
| JP2006136657A (en) * | 2004-11-15 | 2006-06-01 | Showa Denko Plastic Products Co Ltd | Multistep straw |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328606B2 (en) | 1988-06-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |