JPS63191776A - Seal structure of vessel - Google Patents
Seal structure of vesselInfo
- Publication number
- JPS63191776A JPS63191776A JP1648987A JP1648987A JPS63191776A JP S63191776 A JPS63191776 A JP S63191776A JP 1648987 A JP1648987 A JP 1648987A JP 1648987 A JP1648987 A JP 1648987A JP S63191776 A JPS63191776 A JP S63191776A
- Authority
- JP
- Japan
- Prior art keywords
- container
- heat
- sheet
- flange
- welded
- 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.)
- Pending
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 24
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Packages (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】
〔産業上の利用分野〕
本発明は、茶碗蒸し材料や飲料水等を収納する容器で、
詳しくは、その開口部周縁に環状の鍔部を連接してある
合成樹脂製の容器と、この容器とは異質の合成樹脂から
構成され、かつ、前記容器の開口部を密封する状態で鍔
部に加圧しながら熱溶着されるシートとからなる容器の
シール構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a container for storing chawanmushi ingredients, drinking water, etc.
Specifically, a container made of synthetic resin has an annular flange connected to the periphery of its opening, and a flange that is made of a synthetic resin different from that of the container and that seals the opening of the container. This invention relates to a container sealing structure consisting of a sheet that is thermally welded under pressure.
〔従来の技術］
従来、上記の容器のシール構造では、容器の鍔部の熱溶
着面とこれに相対向するシートの熱溶着面とを、夫々容
器の軸芯に対する直交方向に沿う平滑な面に構成してい
た（文献を示すことができない）。[Prior Art] Conventionally, in the above-described container seal structure, the heat-welded surface of the container's flange and the heat-welded surface of the opposing sheet are each formed into a smooth surface along a direction perpendicular to the axis of the container. (I can't show the literature).
しかしながら、容器の鍔部とこれに重合されたシートと
を加圧して熱溶着するとき、その熱溶着の三大要素であ
る加圧力は鍔部とシートとの熱溶着面全体に均一に、か
つ、高精度に加えることができるものの、他方の要素で
ある加熱温度はサーモスタット等の温度センサによって
ＯＮ −ＯＦ Ｆ ｆｒｉ制御されるため、各容器の熱
溶着温度に比較的大きなバラツキを生じ易い傾向にある
。However, when pressurizing and thermally welding the flange of a container and a sheet polymerized thereto, the pressure, which is the three major elements of thermal welding, is uniform over the entire heat-welded surface of the flange and the sheet. , can be added with high precision, but the other element, the heating temperature, is ON-OF-Fri controlled by a temperature sensor such as a thermostat, so there is a tendency for relatively large variations in the thermal welding temperature of each container to occur. be.
その為、従来のように、容器の鍔部の熱溶着面とシート
の熱溶着面とが均一に圧着される型式では、加熱温度の
バラツキによって各容器の鍔部とシートとの熱溶着力が
大きく変動することは避けられず、その結果、容器によ
っては、開封時におけるシートの剥離が困難になったり
、或いは、輸送途中等での振動に伴う内容物の揺れ動き
によってシートの熱溶着部分が局部的に剥離し１、その
剥離箇所から内容物が洩れ出るといった問題を招来する
ことがある。Therefore, in the conventional model where the heat-welded surface of the container's flange and the heat-welded surface of the sheet are evenly bonded, the heat-welding force between the flange of each container and the sheet is reduced due to variations in heating temperature. Large fluctuations are unavoidable, and as a result, depending on the container, it may become difficult to peel off the sheet when opening, or the heat-welded portion of the sheet may become localized due to shaking of the contents due to vibration during transportation. This may lead to problems such as the contents leaking out from the peeled area.
本発明の目的は、容器の鍔部とシートとの熱溶着面の合
理的な改造により、熱溶着温度のバラツキに拘らず、開
封時におけるシートの剥離を容易に行うことができるよ
うにしながらも、輸送途中等でのシール破損を抑制する
ことができるようにする点にある。An object of the present invention is to rationally modify the heat welding surface between the container flange and the sheet, so that the sheet can be easily peeled off when opening the container, regardless of variations in the heat welding temperature. , it is possible to suppress seal breakage during transportation, etc.
本発明による容器のシール構造は、鍔部熱溶着面又はこ
れに相対向するシートの熱溶着面、若しくは、これら両
熱溶着面を、容器の中心側ほど実質的に相手側への突出
量が大となるような面に構成してある事を特徴とするも
のであり、それによる作用・効果は次の通りである。In the seal structure of the container according to the present invention, the thermally welded surface of the flange portion, the thermally welded surface of the sheet opposite thereto, or both of these thermally welded surfaces protrude substantially toward the other side toward the center of the container. It is characterized by being constructed on a large surface, and its functions and effects are as follows.
〔作 用］
容器の鍔部とこれに重合されたシートとを加圧すると、
この鍔部とシートとの相対向する熱溶着面のうち、容器
の中心側に片寄った環状の内側面部分がそれに連なる環
状の外側面部分に比して大なる力で押圧される。その為
、各容器の熱溶着温度が温度センサのＯＮ−□ＯＦＦ制
御等によって変化しても、常に、これら両者の内側接着
面部分は強く、かつ、外側接着面部分は弱く熱溶着され
ることになる。[Function] When the flange of the container and the sheet polymerized thereon are pressurized,
Of the opposing heat-welded surfaces of the flange and the sheet, the annular inner surface portion that is biased toward the center of the container is pressed with a larger force than the annular outer surface portion that is continuous therewith. Therefore, even if the heat welding temperature of each container changes due to ON-□OFF control of the temperature sensor, etc., the inner bonding surface of both containers will always be strongly heat-welded, and the outer bonding surface will be weakly heat-welded. become.
〔発明の効果］
その結果、輸送時等において、振動に起因する内容物の
揺れ動きによってシートに剥離方向の外力が作用しても
、この外力を熱溶着力の大なる内側接着面部分にて確実
に受は止めることができるから、熱溶着部の局部剥離に
起因する内容物の洩れ出しなどを防止することができる
。[Effect of the invention] As a result, even if an external force in the peeling direction is applied to the sheet due to the shaking movement of the contents caused by vibration during transportation, etc., this external force can be reliably absorbed by the inner adhesive surface where the heat welding force is large. Since the receiver can be stopped, leakage of the contents due to local peeling of the heat-welded portion can be prevented.
それでいて、容器を開封するときには、熱接着面の外側
に熱溶着力の弱い部分が位置するから、シートの外側端
を鍔から簡単に剥離することができるとともに、次第に
大きくなる剥離モーメントを利用して、接着力の大なる
内側接着部分も一挙に剥離することができるから、上述
の如く輸送途中等でのシール破損を抑制しながらも、開
封時におけるシートの剥離を容易に行うことができたの
である。However, when opening the container, the weaker heat welding force is located on the outside of the heat-adhesive surface, so the outer edge of the sheet can be easily peeled off from the brim, and the peeling moment that gradually increases can be used to Since the adhesive part on the inner side, which has a strong adhesive force, can be peeled off all at once, the sheet can be easily peeled off when opening the package, while preventing seal breakage during transportation as mentioned above. be.
〔実施例］ 以下、本発明の実施例を図面に基づいて説明する。〔Example] Embodiments of the present invention will be described below based on the drawings.
第１図乃至第３図は茶碗蒸し用の容器を示し、これは、
その開口部周縁に環状の鍔部（１Ａ）を連設してある合
成樹脂製の容器（１）と、この容器（１）とは異質の合
成樹脂から構成され、かつ、前記容器（１）の開口部を
密封する状態で鍔部（１Ａ）に加圧しながら熱溶着され
るシート（２）とを備えているとともに、前記鍔部（１
Ａ）の熱溶着面（１ａ）を、容器（１）の中心側ほどシ
ート（２）の熱溶着面（２ａ）側への突出量が大なるテ
ーパー面に構成してある。Figures 1 to 3 show a container for chawanmushi, which is
A container (1) made of synthetic resin has an annular flange (1A) connected to the periphery of its opening, and the container (1) is made of a different synthetic resin, and the container (1) The sheet (2) is thermally welded to the flange (1A) under pressure while sealing the opening of the flange (1A).
The thermal welding surface (1a) of A) is configured to be a tapered surface such that the amount of protrusion of the sheet (2) toward the thermal welding surface (2a) increases toward the center of the container (1).
前記容器（１）はポリプロピレンから構成されζおり、
また、前記シート（２）は、ナイロンやポリエステル等
からなる上層の補強用フィルム（２Ａ）と、高密度ポリ
エチレン等からなる比較的剥離し易い下層の溶着用フィ
ルム（２Ｂ）とを接着剤で貼り合わせて構成してある。The container (1) is made of polypropylene,
In addition, the sheet (2) has an upper reinforcing film (2A) made of nylon, polyester, etc., and a lower layer welding film (2B), which is relatively easy to peel, made of high-density polyethylene, etc., attached with an adhesive. It is configured accordingly.
そして、容器（１）の開口部を密封ずべく容器（１）の
鍔部（１＾）とこれに重合されたシート（２）とを加圧
すると、この鍔部（１Ａ）のテーパー状の熱溶着面（１
ａ）のうち、シート（２）側への突出量が大きい容器（
１）の中心側に片寄った環状の内側面部分がそれに連な
る環状の外側面部分に比して大なる力で押圧される。そ
の為、加熱温度が温度センサ等の特性によって変化して
も、常に、これら両者の内側接着面部分は強く、かつ、
外側接着面部分は弱く熱溶着されることになる。When the flange (1^) of the container (1) and the sheet (2) polymerized thereon are pressurized to seal the opening of the container (1), the tapered shape of the flange (1A) Heat welding surface (1
Among a), the container (
1) The annular inner surface portion that is biased toward the center is pressed with a larger force than the annular outer surface portion that is connected thereto. Therefore, even if the heating temperature changes depending on the characteristics of the temperature sensor, etc., the inner adhesive surface between the two will always be strong and
The outer adhesive surface portion will be weakly heat welded.
上述の如く構成された容器（１）及びシート（２）の寸
法の一例を挙げると、容器（１）の鍔部（１Ａ）の幅（
ｆｆ）は２〜３鵞鵬、シー１−（２）の補強用フィルム
（２Ａ）の厚みは１２〜１５μ、）容着用フィルム（２
Ｂ）の厚みは５０〜６０μである。To give an example of the dimensions of the container (1) and sheet (2) configured as described above, the width of the flange (1A) of the container (1) (
ff) has a thickness of 2 to 3, the thickness of the reinforcing film (2A) of sea 1-(2) is 12 to 15μ,
The thickness of B) is 50-60μ.
次に、別の実施例を説明する。Next, another example will be described.
（イ）第４図に示すように、前記鍔部（１Ａ）の熱溶着
面（１ａ）を、その容器直径方向の中央位置と内側辺相
当位置とにおいて、シート（２）の熱溶着面（２ａ）に
向って最大に突出するダブルテーパーに構成して実施し
てもよい。(a) As shown in Fig. 4, the heat welding surface (1a) of the flange (1A) is placed at the center position in the diametrical direction of the container and at a position corresponding to the inside edge of the sheet (2). It may be implemented by forming a double taper that protrudes maximally toward 2a).
−）第５図に示すように、前記鍔部（１＾）全体を外方
下方に屈曲させて、この鍔部（１Ａ）の熱溶着面（１ａ
）を、容器（１）の中心側ほどシート（２）の熱溶着面
（２ａ）側への突出量が大なるテーパー面に構成して実
施してもよい。-) As shown in FIG.
) may be implemented by configuring the tapered surface so that the amount of protrusion of the sheet (2) toward the heat welding surface (2a) increases toward the center of the container (1).
（ハ）第６図に示すように、前記鍔部（１Ａ）の熱溶着
面（１ａ）を、その容器直径方向のほぼ中央位を境とす
る内側接着面部分全体がこれに連なる外側接着面部分よ
りもシート（２）側に突出するような階段状に構成して
実施してもよい。(c) As shown in FIG. 6, the entire inner adhesive surface portion of the heat-welded surface (1a) of the flange portion (1A), which borders approximately the center in the diametrical direction of the container, is connected to the outer adhesive surface. It may be implemented in a step-like configuration that protrudes toward the seat (2) side from the portion.
に）第７図に示すように、前記シート（２）の熱溶着面
（２ａ）を、容器（１）の中心側ほど鍔部（１Ａ）の熱
溶着面（１ａ）側への突出量が大なるテーパー面に構成
して実施してもよい。7) As shown in FIG. 7, the amount of protrusion of the flange (1A) toward the heat-welding surface (1a) of the heat-welding surface (2a) of the sheet (2) increases toward the center of the container (1). It may be implemented by configuring it as a large tapered surface.
（ホ）第８図に示すように、前記鍔部（１Ａ）の熱溶着
面（１ａ）及びシー）１２）の熱溶着面（２ａ）を共に
、容器（１）の中心側ほど相手側への突出量が大なるテ
ーパー面に構成して実施してもよい。(E) As shown in Fig. 8, the heat welding surface (1a) of the flange (1A) and the heat welding surface (2a) of the seam 12) are moved toward the other side toward the center of the container (1). It may be implemented by forming a tapered surface with a large protrusion amount.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
第１図乃至第３図は本発明に係る容器のシール構造の実
施例を示し、第１図は溶着前の要部の断面図、第２図は
溶着後の要部断面図、第３図は全体斜視図である。第４
図乃至第８図は夫々側の実施例を示す要部の断面図であ
る。
（１）・・・・・・容器、（１Ａ）・・・・・・鍔部、
（１ａ）・・・・・・熱溶着面、（２）・・・・・・シ
ート、（２ａ）・・・・・・熱溶着面。1 to 3 show an embodiment of the sealing structure for a container according to the present invention, FIG. 1 is a sectional view of the main part before welding, FIG. 2 is a sectional view of the main part after welding, and FIG. 3 is a sectional view of the main part after welding. is an overall perspective view. Fourth
Figures 8 through 8 are sectional views of essential parts showing embodiments on each side. (1)...Container, (1A)...Brim part,
(1a)... Heat welding surface, (2)... Sheet, (2a)... Heat welding surface.
Claims (1)
成樹脂製の容器（１）と、この容器（１）とは異質の合
成樹脂から構成され、かつ、前記容器（１）の開口部を
密封する状態で鍔部（１Ａ）に加圧しながら熱溶着され
るシート（２）とからなる容器のシール構造であって、
前記鍔部（１Ａ）熱溶着面（１ａ）又はこれに相対向す
るシート（２）の熱溶着面（２ａ）、若しくは、これら
両熱溶着面（１ａ）、（２ａ）を、容器（１）の中心側
ほど実質的に相手側への突出量が大となるような面に構
成してある容器のシール構造。A container (1) made of synthetic resin has an annular flange (1A) connected to the periphery of the opening, and the container (1) is made of a different synthetic resin, and the container (1) is A container sealing structure comprising a sheet (2) that is thermally welded while applying pressure to a flange (1A) in a state that seals an opening,
The heat-welded surface (1a) of the flange (1A), the heat-welded surface (2a) of the sheet (2) opposite thereto, or both of these heat-welded surfaces (1a) and (2a), are attached to the container (1). A container sealing structure in which the surface protrudes substantially toward the other side toward the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1648987A JPS63191776A (en) | 1987-01-26 | 1987-01-26 | Seal structure of vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1648987A JPS63191776A (en) | 1987-01-26 | 1987-01-26 | Seal structure of vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191776A true JPS63191776A (en) | 1988-08-09 |
Family
ID=11917701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1648987A Pending JPS63191776A (en) | 1987-01-26 | 1987-01-26 | Seal structure of vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191776A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000177723A (en) * | 1998-12-17 | 2000-06-27 | Dainippon Printing Co Ltd | Injection molded container for retort |
| WO2020217596A1 (en) * | 2019-04-24 | 2020-10-29 | 東罐興業株式会社 | Method for manufacturing resin container, apparatus for manufacturing resin container, and resin container |
-
1987
- 1987-01-26 JP JP1648987A patent/JPS63191776A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000177723A (en) * | 1998-12-17 | 2000-06-27 | Dainippon Printing Co Ltd | Injection molded container for retort |
| WO2020217596A1 (en) * | 2019-04-24 | 2020-10-29 | 東罐興業株式会社 | Method for manufacturing resin container, apparatus for manufacturing resin container, and resin container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4527699A (en) | Vessel for storing liquid | |
| JP2930787B2 (en) | Multi-piece flat top container | |
| JPS63191776A (en) | Seal structure of vessel | |
| JP5542508B2 (en) | Hot beverage container lid material | |
| JP2001139069A (en) | Package container for heating by microwave oven | |
| JPS60172638A (en) | Vessel made of synthetic resin | |
| USRE25938E (en) | Mobley container | |
| JP2930643B2 (en) | Manufacturing method of package | |
| JP3240909B2 (en) | Composite container | |
| JPS635627B2 (en) | ||
| JP2659583B2 (en) | Easy-open sealed container | |
| JPH035575Y2 (en) | ||
| JP4099864B2 (en) | Pressure-resistant paper container | |
| JPS6037308Y2 (en) | container spout | |
| JP2000226071A (en) | Fitted container | |
| JPS6116989Y2 (en) | ||
| JPH046902Y2 (en) | ||
| JPS6038492Y2 (en) | Paper containers with sealing, easy opening, and re-closing functions | |
| JPS5952094B2 (en) | Double bottom container and its manufacturing method | |
| JPH0720026Y2 (en) | Packaging bag | |
| JPH04267766A (en) | Pour-out opening structure of liquid container | |
| KR100490018B1 (en) | Packing method of bean curd | |
| JPH0322153Y2 (en) | ||
| JP2748507B2 (en) | PTP packaging container | |
| JPH0212187Y2 (en) |