JPS6328606B2 - - Google Patents
Info
- Publication number
- JPS6328606B2 JPS6328606B2 JP10969084A JP10969084A JPS6328606B2 JP S6328606 B2 JPS6328606 B2 JP S6328606B2 JP 10969084 A JP10969084 A JP 10969084A JP 10969084 A JP10969084 A JP 10969084A JP S6328606 B2 JPS6328606 B2 JP S6328606B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter pipe
- small
- pipe
- straw
- stiffness
- 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
Links
- 239000010902 straw Substances 0.000 claims description 14
- 239000000155 melt Substances 0.000 claims description 7
- 229920001384 propylene homopolymer Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Table Equipment (AREA)
Description
【発明の詳細な説明】
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 The present invention relates to an improved 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ー
が提案されている。 Conventionally, the pipe was made of a combination of a large-diameter pipe and a small-diameter pipe, so that it could be short for storage, etc., and could be stretched to a longer length for suction, etc., for convenient storage, portability, transportation, attachment to beverage containers, etc. A tiered telescoping straw has been proposed.
このような二段式伸縮自在ストローのうち、小
径のパイプの端部にラツパ状の拡開部を設けるこ
とによつて、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、これによつて二段式伸縮自
在ストロー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。 Among such two-stage telescoping straws, by providing a flare-like expansion part at the end of the small-diameter pipe, 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 it will not be dislodged by gravity no matter the overall length of the two-stage retractable straw. ing.
一方、このような二段式伸縮自在ストローで
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
よつて密着するようにする必要がある。 On the other hand, with 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ーは、こ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
止することになり好ましい。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あり生
産収率にも影響を与えることになる。 The above-mentioned two-stage retractable straw has a widening section at the end of the small diameter pipe, and this widening section fits tightly against the inner surface of the large diameter pipe, preventing leakage of breath or suction fluid. It's very desirable. However, it is a very difficult problem to completely bring the enlarged portion of the small-diameter pipe into close contact with the inner surface of the large-diameter pipe, and this also affects the production 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
を挿入したストロー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
ーを提供することを目的とするものである。 The present invention was developed in view of the above circumstances, and uses a straw in which a small-diameter pipe with a widened end is inserted into a large-diameter pipe, and the widened end of the small-diameter pipe is inserted into the inner surface of a large-diameter pipe. The object of the present invention is to provide a two-stage telescoping straw 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ーの詳細な
内容を説明する。 The details of the two-stage retractable 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ーの一
部を拡大して示した断面図で、１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
成された拡開部２ａが大径のパイプ１の内面に密
着するような構成になつている。しかも大径のパ
イプ１はメルトフローインデツクスが７〜14ｇ／
10min（JIS K6758）でステイフネス（ASTM
D747）が10000〜13000Kg／cm2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
ーインデツクス７〜14ｇ／10minでステイフネス
（ASTM D747）が13500Kg／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, in which 1 is a large diameter pipe, and 2 is a small diameter pipe with an expanded portion 2a at its end. . As shown in this figure, the expanded portion 2a formed in the small diameter pipe 2 is configured to come into close contact with the inner surface of the large diameter pipe 1. Moreover, the large diameter pipe 1 has a melt flow index of 7 to 14 g/
Stiffness (ASTM) at 10min (JIS K6758)
D747) is made of propylene-based polymer with a melt flow index of 7 to 14 g/ 10 min and a stiffness (ASTM D747) of 13,500 Kg/cm 2 or more. has been done.
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〜１／10mm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 about 1 mm to 1/10 mm, the enlarged part of the small diameter pipe can be easily inserted into the large diameter pipe 1, forming 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／cm2のプロピレン
系ポリマーを選ぶことによつ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、前述の
ように大径のパイプの内径よりも僅かに大である
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イフネスが13500
Kg／cm2以上のプロピレンホモポリマーを用いたこ
とによつ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 to 13,000 kg/cm 2 for the large-diameter pipe 1 as described above, the large-diameter pipe can be made to have elasticity and some degree of stiffness. This makes it possible to insert an expanded portion of a small-diameter pipe that is slightly larger than the inner diameter of a large-diameter pipe. Also, the stiffness is 13500 as a small diameter pipe.
By using a propylene homopolymer of Kg/cm 2 or more, the elasticity of the expanded part is moderate, and in conjunction with the large diameter pipe made of the above material, the inner surface and the expanded part are perfectly adhered. I wanted it to become something.
又両パイプをメルトフローインデツクスが７〜
14ｇ／10min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
デツクスが７ｇ／10min未満の場合には生産性が
半減し又14ｇ／10min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 for both pipes is 7~
The reason why we chose a synthetic resin material with a yield of 14g/10min was to take moldability into consideration.If the melt flow index is less than 7g/10min, the productivity will be halved, and if it exceeds 14g/10min, Both are unfavorable because the dimensional accuracy is extremely deteriorated.
以上述べた大径のパイプに用いられメルトフロ
ーインデツクスが７〜14ｇ／10minでステイフネ
スが10000〜13000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ツ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
ドしたもの等がある。 Examples of propylene-based polymers that are used in the large-diameter pipes mentioned above and have a melt flow index of 7 to 14 g/10 min and a stiffness of 10,000 to 13,000 include ethylene propylene block copolymers and propylene homopolymers with an ethylene concentration of 10 to 40 percent by weight. There are polymers blended with low molecular weight polyethylene.
前記材料のうちエチレンプロピレンブロツクコ
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りすぎるので好
ましくない。 Among these materials, when the ethylene concentration in the ethylene propylene block copolymer is less than 10 weight percent, flexibility is insufficient. Moreover, if it exceeds 40% by weight, it becomes too flexible, 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つ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 telescopic pipe of the present invention has good adhesion between the inner surface of the large diameter pipe and the expanded portion of the small diameter pipe by using appropriate materials for each of the large diameter pipe and the small diameter pipe. is complete and there is no leakage of breath or suction fluid. 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ーの断面図である。
１……大径のパイプ、２……小径のパイプ、２
ａ……拡開部。
The drawing is a sectional view of the straw of the present invention. 1...Large diameter pipe, 2...Small diameter pipe, 2
a... Expansion part.
Claims (1)
た端部が密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ーにおいて、前記大径パイ
プがメルトフローインデツクスが７〜14ｇ／
10minでステイフネスが10000〜13000Kg／cm2のプ
ロピレン系ポリマーよりなり、前記小径のパイプ
がメルトフローインデツクスが７〜14ｇ／10min
でステイフネスが13500Kg／cm2以上のプロピレン
ホモポリマーよりなる二段式伸縮自在ストロー。1. In a two-stage telescopic 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 propylene polymer with a stiffness of 10,000 to 13,000 kg/cm 2 at 10 min, and the melt flow index is 7 to 14 g/10 min.
A two-stage retractable straw made of propylene homopolymer with a stiffness of 13,500 kg/cm 2 or more.
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 JPS60256414A (en) | 1985-12-18 |
| JPS6328606B2 true 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 (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 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0229847A4 (en) * | 1985-06-21 | 1987-10-08 | Showa Denko Kk | 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 |
| JP2582005B2 (en) * | 1991-05-21 | 1997-02-19 | 東洋キャップ製造株式会社 | Double-pipe telescopic straw |
| JP2006136657A (en) * | 2004-11-15 | 2006-06-01 | Showa Denko Plastic Products Co Ltd | Multi-stage straw |
-
1984
- 1984-05-31 JP JP10969084A patent/JPS60256414A/en active Granted
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60256414A (en) | 1985-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4850533A (en) | Telescopic drinking straw | |
| US5928744A (en) | PVC-free multilayer tube for medical purposes, process for the production thereof and use | |
| KR960033750A (en) | Multilayer film for packaging and administration of medical solutions | |
| US4657182A (en) | Two-stage type of freely elongatable sucking pipe | |
| JPS6328606B2 (en) | ||
| JP5019703B2 (en) | PVC-free multi-layer tube for medical purposes with higher reliability of peelability, method of making and use | |
| US6302151B1 (en) | Flexible hose of multilayer plastics material | |
| JP3134376B2 (en) | Multilayer plastic container | |
| JPS6341573B2 (en) | ||
| MXPA03000936A (en) | Multilayer plastic tube for fluids used in motor vehicles. | |
| JP6912718B2 (en) | Laminate peeling container | |
| JPH09133268A (en) | Polyethylene multi-layer pipe | |
| JP3029777B2 (en) | Composite hose | |
| JPH0311212B2 (en) | ||
| JPH04129832A (en) | Resin made fuel feeding pipe | |
| JP7308050B2 (en) | Double container evaluation method | |
| JPH0244998Y2 (en) | ||
| US20070184226A1 (en) | Flexible hose | |
| JPH0325939Y2 (en) | ||
| US20030029514A1 (en) | Flexible hose | |
| JPS6028584Y2 (en) | wear resistant hose | |
| JP3929601B2 (en) | Extruded tube container | |
| JPH1038159A (en) | Water stopping method for synthetic resin corrugated double-layer pipe | |
| JPH0226397Y2 (en) | ||
| JPH07164604A (en) | Base material for medicare container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |