JP2013252876A - Lidded container - Google Patents

Lidded container Download PDF

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JP2013252876A
JP2013252876A JP2012128805A JP2012128805A JP2013252876A JP 2013252876 A JP2013252876 A JP 2013252876A JP 2012128805 A JP2012128805 A JP 2012128805A JP 2012128805 A JP2012128805 A JP 2012128805A JP 2013252876 A JP2013252876 A JP 2013252876A
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Prior art keywords
lid
container
curved surface
section
hinge
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JP5122694B1 (en
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Shoji Iwai
正二 岩井
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Priority to PCT/JP2013/066406 priority patent/WO2013183792A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0222—Removable lids or covers without integral tamper element secured only by friction or gravity only on the outside, or a part turned to the outside, of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00046—Drinking-through lids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/0037—Flexible or deformable
    • B65D2543/00379—Flexible or deformable hinged or articulated, i.e. made of two or more parts hinged one to another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar
    • B65D2543/00842—Integral tabs, tongues, handles or similar outside of the lid

Abstract

PROBLEM TO BE SOLVED: To provide an easy-to-use lidded container in which an open state can be sustained autonomously using the elasticity of a lid, in the lid of a container having a hinge.SOLUTION: In a container in which part of a lid opens by one-way hinging on a hinge 4 of a rigid and elastic lid 3, the part of the lid is formed of a cubic curved surface 5 in which a first horizontal cross section (a) passing through the hinge 4 has a concave curved surface when the lid 3 is closed and a second horizontal cross section (b) intersecting the first horizontal cross section has a convex curved surface, and when the lid 3 is turned and opened, the first horizontal cross section (a) deforms into a convex curved surface due to elasticity of the cubic curved surface 5 while keeping the lid open.

Description

本発明は、飲食物や各種材料を収納する蓋付き容器に関し、その蓋が容器本体のフランジ部に接合されると共に、その蓋の舌片部を持って開放するとき、そのヒンジの周りに開放状態を維持できる自己保持機構を設けたものに関する。   The present invention relates to a container with a lid for storing food and drink and various materials, and when the lid is joined to the flange part of the container body and opened with the tongue piece part of the lid open around the hinge The present invention relates to a device provided with a self-holding mechanism capable of maintaining the state.

蓋付き容器において、容器本体と蓋との機密性または液密性を保つため、蓋が容器本体のフランジ部に接合されているものが存在する。
一般にその蓋は、軟質フィルムや硬質フィルムで形成されている。軟質フィルムを容器本体の開口のフランジに接着し、その端部をフランジより突出させて舌片部とし、その舌片部から蓋を開放し易くしたものが存在する。
さらには、容器本体とは接着されない着脱型の蓋において、その蓋の一部を開閉自在にして、そこからストローを差し込み或いは、そこから飲み物を取り出すようにしたものも存在する。 Some containers with lids have a lid joined to the flange portion of the container body in order to maintain the confidentiality or liquid-tightness between the container body and the lid.
In general, the lid is formed of a soft film or a hard film. There is one in which a soft film is bonded to a flange of an opening of a container body, and an end portion thereof protrudes from the flange to form a tongue piece portion, and the lid is easily opened from the tongue piece portion.
Further, there is a detachable lid that is not bonded to the container body, and a part of the lid is opened and closed so that a straw can be inserted or a drink can be removed therefrom.

特開２００５−２９１８０号公報JP 2005-29180 A 特開平０６−１０００５０号公報Japanese Patent Laid-Open No. 06-100050

比較的剛性または純剛性のフィル材または板材からなる蓋を有する蓋付き容器において、取り扱い性を良くするために、その蓋に開閉を容易にするヒンジを有し、且つ気密性または液密性を保持しつつ、その一部を開放した場合、その状態を蓋自体の弾性によって自己保持できる蓋付き容器を提供することを課題とする。
それにより、蓋の一部が開放された部分から内容物を容易に取り出せる。 In a lidded container having a lid made of a relatively rigid or purely rigid fill material or plate material, the lid has a hinge that makes it easy to open and close, and has airtightness or liquid tightness in order to improve handling. An object of the present invention is to provide a container with a lid that can be held by the elasticity of the lid itself when part of the lid is opened while being held.
Thereby, the contents can be easily taken out from the part where the lid is partially opened.

請求項１に記載の本発明は、底(1a)を有する容器本体(1)の開口縁にフランジ部(2) が形成され、そのフランジ部(2) にフィルム材または板材からなる蓋(3)が接合される蓋付き容器において、
その蓋(3)は剛性および弾性を有し、それを直線的または曲線的に横断するヒンジ(4)がその蓋(3)に設けられて、そのヒンジ部(4)を境に蓋(3)の一部が片開き扉状に開放され、
蓋(3)の閉状態で、そのヒンジ(4)を通る蓋(3)の第１横断面（ａ）は、容器本体(1)の底側に凹陥する凹曲面を有し、その第１横断面（ａ）に交差する第２横断面（ｂ）は、蓋(3)の外側に突出する凸曲面を有して、そのヒンジ(4)を含むその近傍が三次曲面(5)で形成され、
そのヒンジ(4)の回りに蓋(3)の一部を一定以上回動して開くとき、その三次曲面(5)の弾性により、第１横断面（ａ）が突然、前記凹曲面から蓋(3)側に突出する凸曲面に変形して、その開状態が保持される自己保持機構を有することを特徴とする蓋付き容器である。 According to the first aspect of the present invention, a flange portion (2) is formed at the opening edge of a container body (1) having a bottom (1a), and a lid (3) made of a film material or a plate material is formed on the flange portion (2). ) In a lidded container,
The lid (3) has rigidity and elasticity, and a hinge (4) that linearly or curvilinearly crosses the lid (3) is provided on the lid (3), and the lid (3) ) Is partly opened like a single door,
The first cross section (a) of the lid (3) passing through the hinge (4) in the closed state of the lid (3) has a concave curved surface that is recessed on the bottom side of the container body (1). The second cross section (b) intersecting the cross section (a) has a convex curved surface protruding outside the lid (3), and its vicinity including the hinge (4) is formed by a cubic curved surface (5). And
When a part of the lid (3) is pivoted and opened more than a certain amount around the hinge (4), the first cross section (a) suddenly opens from the concave curved surface due to the elasticity of the cubic curved surface (5). (3) A container with a lid, characterized by having a self-holding mechanism that is deformed into a convex curved surface projecting to the side and that maintains its open state.

請求項２に記載の本発明は、請求項１に記載の蓋付き容器において、
前記三次曲面(5)の平面外周は略楕円状に形成され、その長軸が前記第１横断面（ａ）上に存在し、前記第２横断面（ｂ）がその第１横断面（ａ）に直交する短軸上にある蓋付き容器である。
請求項３に記載の本発明は、請求項２に記載の蓋付き容器において、
前記長軸に沿う楕円の弧がその両端から中心に次第に、フランジ部(2) からの深さの深くなる弧状壁(7)を形成する蓋付き容器である。 According to a second aspect of the present invention, in the container with a lid according to the first aspect,
The outer periphery of the cubic curved surface (5) is substantially elliptical, its long axis is on the first cross section (a), and the second cross section (b) is the first cross section (a). ) Is a container with a lid on a short axis perpendicular to ().
A third aspect of the present invention provides the container with a lid according to the second aspect,
The elliptical arc along the major axis is a container with a lid that forms an arcuate wall (7) that gradually increases in depth from the flange (2) from both ends to the center.

請求項４に記載の本発明は、請求項２または請求項３に記載の蓋付き容器において、
第２横断面（ｂ）の前記短軸が、フランジ面に対して傾斜している蓋付き容器である。
請求項５に記載の本発明は、請求項１〜請求項４のいずれかにおいて、
前記蓋(3)の一部に蓋開放のための舌片部(6)が、容器本体(1)の外周に突設され、その舌片部(6)を含む蓋(3)の直径線に交差して前記ヒンジ(4)が設けられ、
そのヒンジ(4)の位置が容器本体(1)の直径線上または、その直径線に対して舌片部(6)に近接する位置、或いは離反する位置にある蓋付き容器である。 The present invention according to claim 4 is the container with a lid according to claim 2 or 3,
The short axis of the second cross section (b) is a container with a lid inclined with respect to the flange surface.
The present invention according to claim 5 provides the method according to any one of claims 1 to 4,
A tongue piece (6) for opening the lid on a part of the lid (3) is projected on the outer periphery of the container body (1), and the diameter line of the lid (3) including the tongue piece (6) The hinge (4) is provided crossing the
The hinge (4) is a container with a lid in which the position of the hinge (4) is on the diameter line of the container body (1), or at a position close to or away from the tongue piece (6) with respect to the diameter line.

請求項６に記載の本発明は、請求項１〜請求項５のいずれかに記載の蓋付き容器において、
前記三次曲面(5)が、前記ヒンジ(4)の近傍のみに存在し、他の部分は同一の容器の底をその蓋(3)上に載置したとき、その軸線を垂直に保持できるように、蓋(3)の上面が平坦に形成されている蓋付き容器である。
請求項７に記載の本発明は、請求項１〜請求項６のいずれかに記載の蓋付き容器において、
前記舌片部(6)から前記ヒンジ(4)までの範囲では、蓋(3)と容器本体(1)のフランジ部(2) との接着力をそれ以外の範囲に比べて弱くした蓋付き容器である。 The present invention described in claim 6 is a container with a lid according to any one of claims 1 to 5,
The cubic curved surface (5) exists only in the vicinity of the hinge (4), and the other parts can hold the axis of the same container vertically when the bottom of the same container is placed on the lid (3). In addition, the lid (3) is a container with a lid whose upper surface is formed flat.
A seventh aspect of the present invention provides the container with a lid according to any one of the first to sixth aspects,
In the range from the tongue piece (6) to the hinge (4), with a lid that weakens the adhesive force between the lid (3) and the flange portion (2) of the container body (1) compared to the other ranges. It is a container.

請求項１に記載の本発明は、蓋３の閉状態で、そのヒンジ４が横断する蓋３の第１横断面（ａ）が凹曲面を有し、それに交差する第２横断面（ｂ）が凸曲面を有して、そのヒンジ４を含むその近傍が三次曲面５で形成され、
蓋３を開くとき、弾性により、第１横断面（ａ）が凸曲面に変形して、その開状態が保持される自己保持機構を有するものである。
そのため、蓋を手で保持し続けることなく、蓋３の開状態を維持でき、使い勝手のよい蓋付き容器となる。 According to the first aspect of the present invention, in the closed state of the lid 3, the first transverse section (a) of the lid 3 traversed by the hinge 4 has a concave curved surface, and the second transverse section (b) intersecting with the concave curved surface. Has a convex curved surface, and its vicinity including the hinge 4 is formed by a cubic curved surface 5;
When the lid 3 is opened, the first cross section (a) is deformed into a convex curved surface by elasticity, and has a self-holding mechanism that holds the open state.
Therefore, it is possible to maintain the lid 3 in an open state without continuing to hold the lid by hand, resulting in a convenient container with a lid.

請求項２に記載の発明は、三次曲面５の平面外周が略楕円状に形成され、その長軸がヒンジ部４上の第１横断面（ａ）に存在するから、三次曲面の変形を容易に無理なく行い、使い勝手のよい蓋付き容器となる。
請求項３に記載の発明は、長軸に沿う楕円の弧がその両端から中心に次第に、フランジ部からの深さの深くなる弧状壁(7)を形成するものである。それにより、体裁のよい三次曲面を容易に形成でき、蓋の自己保持機構を確保できる。 In the invention according to claim 2, since the outer periphery of the cubic curved surface 5 is formed in a substantially elliptical shape and the major axis thereof exists in the first cross section (a) on the hinge portion 4, the cubic curved surface can be easily deformed. The container with a lid is easy to use.
According to a third aspect of the present invention, an elliptical arc along the major axis forms an arcuate wall (7) whose depth from the flange portion gradually increases from both ends to the center. As a result, a well-formed tertiary curved surface can be easily formed, and a self-holding mechanism for the lid can be secured.

請求項４に記載の発明は、三次曲面の短軸となる第２横断面（ｂ）が、フランジ面に対して傾斜しているので、その傾斜面の上流側の深さが、相対的に次第に浅くなる三次曲面となり、自然で、体裁のよい蓋付き容器となる。
請求項５に記載の発明は、蓋３の舌片部６を含む直径線に直交して、ヒンジ４が設けられているから、その舌片部６を保持して、蓋３を開放すると自然に、その開放状態を蓋の弾性により維持することができる。 In the invention according to claim 4, since the second cross section (b) which is the minor axis of the cubic curved surface is inclined with respect to the flange surface, the depth on the upstream side of the inclined surface is relatively It becomes a cubic surface gradually becoming shallower, and it becomes a container with a lid that is natural and looks good.
According to the fifth aspect of the present invention, since the hinge 4 is provided perpendicular to the diameter line including the tongue piece portion 6 of the lid 3, it is natural to hold the tongue piece portion 6 and open the lid 3. In addition, the open state can be maintained by the elasticity of the lid.

請求項６に記載の発明は、三次曲面５が、前記ヒンジ４の近傍のみに存在し、他の部分は、平坦に形成されて、同一の容器の底を隣接する容器の蓋３上に載置できるから、容器を縦方向に多数重ねることができ、多数の容器の保管、輸送に便利である。
請求項７に記載の発明は、舌片部６から前記ヒンジ４までの範囲では、蓋３と容器本体１のフランジ部２との接着力をそれ以外の範囲に比べて弱くしたから、蓋を開け易い。それと共に、蓋を開け過ぎて、その蓋が容器本体から分離する不都合を防止できる。 According to the sixth aspect of the present invention, the cubic curved surface 5 exists only in the vicinity of the hinge 4 and the other portions are formed flat so that the bottom of the same container is placed on the lid 3 of the adjacent container. Since a large number of containers can be stacked in the vertical direction, it is convenient for storing and transporting a large number of containers.
In the invention according to claim 7, in the range from the tongue piece portion 6 to the hinge 4, the adhesive force between the lid 3 and the flange portion 2 of the container body 1 is weaker than the other ranges. Easy to open. At the same time, it is possible to prevent the inconvenience that the lid is separated from the container body by opening the lid too much.

本発明の第１実施例の蓋付き容器の斜視図および、その断面図。The perspective view of the container with a lid | cover of 1st Example of this invention, and its sectional drawing. 同容器の蓋の作用を示す説明図。Explanatory drawing which shows the effect | action of the lid | cover of the container. 同容器の平面図。The top view of the container. 同容器の重ね合わせ状態を示す斜視図。The perspective view which shows the overlapping state of the same container. 同第２実施例の蓋付き容器の斜視図および、その断面図。The perspective view of the container with a lid | cover of the 2nd Example, and its sectional drawing. 同第３実施例の蓋付き容器の斜視図および、その断面図。The perspective view of the container with a lid | cover of the 3rd Example, and its sectional drawing. 同第４実施例の蓋付き容器の斜視図。The perspective view of the container with a lid | cover of the 4th Example. 同第５実施例の蓋付き容器の斜視図および、その断面図。The perspective view of the container with a lid | cover of the 5th Example, and its sectional drawing.

次に、図面に基づいて本発明の実施の形態につき説明する。   Next, embodiments of the present invention will be described with reference to the drawings.

図１は本発明の第１実施例であって、（Ａ）はその斜視図、（Ｂ）はＢ−Ｂ断面略図 （Ｃ）はＣ−Ｃ断面略図を示す。
この蓋付き容器は円錐台形状の容器本体１の開口端にフランジ部２を有し、そのフランジ部２に蓋３がヒートシール等により、気密及び液密に接合されている。
この蓋３は、剛性および弾性を有するプラスチックシートからなり、その一端に舌片部６を半径方向外側に突設している。そして舌片部６とその中心とを結ぶ直径線上に直交するようにその他端部に片寄って、一対のヒンジ４が形成され、そのヒンジ４間を結ぶ直線または曲線の第１横断面ａを長軸とした平面楕円形の三次曲面５が凹陥されている。 1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a perspective view thereof, FIG. 1B is a schematic cross-sectional view taken along line BB, and FIG.
This lidded container has a flange portion 2 at the open end of a truncated cone-shaped container body 1, and a lid 3 is joined to the flange portion 2 in an airtight and liquid tight manner by heat sealing or the like.
The lid 3 is made of a plastic sheet having rigidity and elasticity, and has a tongue piece 6 projecting radially outward at one end thereof. A pair of hinges 4 are formed so as to be offset from the other end so as to be orthogonal to the diameter line connecting the tongue piece 6 and the center thereof, and the first cross section a of a straight line or a curve connecting the hinges 4 is long. A planar elliptical cubic curved surface 5 having an axis is recessed.

この三次曲面５は、第１横断面ａに直交する第２横断面ｂを有する。その第１横断面ａは蓋３の閉塞状態において図１（Ｂ）の如く容器本体１の底1a側に凹陥する湾曲面を有し、第２横断面ｂは図１（Ｃ）の如く、その底1aに対して外側に突出する凸曲面を有する。
そしてこの第１横断面ａの凹曲面と第２横断面ｂの凸曲面を形成するため、互いに対向する一対の楕円の弧が、その両端から中心に次第に深さを深くする弧状壁７に形成されている。
即ち、弧状壁７の両端部はその深さが殆どなく、中心部は最も深い。この深さは、容器本体１のフランジ部２からの深さをいう。
三次曲面５は、蓋３の他端部のみにあり、その他は平坦に形成されている。このようにすることにより、図４に示す如く、同一の蓋付き容器を上下方向に重ねることができる。 即ち、上の容器本体１の底1aが、下の容器の蓋３に載置される。 The cubic curved surface 5 has a second cross section b orthogonal to the first cross section a. The first cross section a has a curved surface that is recessed toward the bottom 1a of the container body 1 as shown in FIG. 1B when the lid 3 is closed, and the second cross section b is shown in FIG. 1C. It has a convex curved surface protruding outward with respect to its bottom 1a.
And in order to form the concave curved surface of this 1st cross section a and the convex curved surface of the 2nd cross section b, a pair of ellipse arc which opposes mutually is formed in the arc-shaped wall 7 which becomes deep gradually from the both ends to the center. Has been.
That is, both ends of the arcuate wall 7 have almost no depth, and the center is deepest. This depth refers to the depth from the flange portion 2 of the container body 1.
The tertiary curved surface 5 is only at the other end of the lid 3, and the others are formed flat. By doing in this way, as shown in FIG. 4, the same lidded container can be piled up and down. That is, the bottom 1a of the upper container body 1 is placed on the lid 3 of the lower container.

（作用）
ここで、舌片部６を上方に持ち上げ、容器本体１のフランジ部２との接着を剥がしていくと、三次曲面５は次第に変形し、蓋３がある一定以上回動されると三次曲面５の弾性により、第１横断面ａが突然凹曲面から凸曲面に変形して、その開状態が保持される。その作用は、図１（Ｃ）の破線、および図２（Ａ）から（Ｂ）に示す通りである。
即ち、図２の（Ａ）の状態から第１断面ａの周りに蓋を回転させると、三次曲面５は（Ａ）の状態から（Ｂ）の状態に突然変形し、その状態を自己保持する。本発明では、これを自己保持機構という。そして図２（Ｂ）の状態では、第１横断面ａが凸曲面となり、第２横断面ｂが凹曲面となる。 (Function)
Here, when the tongue piece portion 6 is lifted upward and the adhesion with the flange portion 2 of the container body 1 is peeled off, the cubic curved surface 5 is gradually deformed, and when the lid 3 is rotated more than a certain amount, the cubic curved surface 5 is obtained. Due to this elasticity, the first cross section a suddenly deforms from a concave curved surface to a convex curved surface, and the open state is maintained. The operation is as shown in the broken line in FIG. 1C and in FIGS. 2A to 2B.
That is, when the lid is rotated around the first cross section a from the state shown in FIG. 2A, the cubic curved surface 5 is suddenly deformed from the state shown in FIG. 2A to the state shown in FIG. . In the present invention, this is called a self-holding mechanism. In the state of FIG. 2B, the first transverse section a is a convex curved surface and the second transverse section b is a concave curved surface.

なお、図２では説明を分かり易くするため、三次曲面５の厚みを、実際よりも厚く誇張して記載している。この蓋３は、比較的薄い剛性及び弾性を有する硬質フィルムからなる。そして図１の例では、ヒンジ４線上において、蓋３の外周はＶ字状に欠切され容易に蓋が、開閉できるようにしている。さらに、そのフィルムの接着代は、部分的に異なっている。即ち、図３に示す如く、舌片部６からヒンジ４までの接着代Ｓ２は、それ以外の接着代Ｓ１より小さい。それにより、蓋３の開放をより容易にしている。さらに、蓋３がヒンジ４まで開放されると、それ以上開放し難くしている。その理由は、不用意に蓋３が本体１から分離する不都合を防止するためである。   In FIG. 2, the thickness of the cubic curved surface 5 is exaggerated to be thicker than the actual thickness for easy understanding. The lid 3 is made of a hard film having relatively thin rigidity and elasticity. In the example of FIG. 1, the outer periphery of the lid 3 is cut out in a V shape on the hinge 4 line so that the lid can be easily opened and closed. Furthermore, the bond allowance of the film is partially different. That is, as shown in FIG. 3, the bonding margin S2 from the tongue piece 6 to the hinge 4 is smaller than the other bonding margin S1. Thereby, opening of the lid 3 is made easier. Furthermore, when the lid 3 is opened up to the hinge 4, it is difficult to open it further. The reason is to prevent inconvenience that the lid 3 is inadvertently separated from the main body 1.

次に、図５は本発明の第２実施例であり、この例が図１の第１実施例と異なる点は、三次曲面５の位置のみである。第１実施例では、三次曲面５が一方側に偏り、それにより蓋３をより大きく開放することができる。
図５の例では、三次曲面５が蓋３の中央部に存在する。それにより、蓋の半分程を開放できる。なお、三次曲面を舌片部６の近傍に設けることもできる。この場合、蓋３の開放を小さくできる。それにより、内容物を少量づつ取り出すことができる。
それらの、三次曲面５の各作用効果は図１の作用効果と同一である。そして、蓋３を開放するとき、図５（Ｂ）の水平状態から垂直状態に移行する。
また、この実施例の三次曲面５も蓋３の一部にのみ設けられ、他の部分は平坦に形成されているから、同一の蓋付き容器を上下方向に重ねることができる。そのとき、各蓋付き容器の軸線は、略同心になる。 Next, FIG. 5 shows a second embodiment of the present invention. This example is different from the first embodiment of FIG. 1 only in the position of the cubic curved surface 5. In the first embodiment, the cubic curved surface 5 is biased to one side, so that the lid 3 can be opened more greatly.
In the example of FIG. 5, the cubic curved surface 5 exists at the center of the lid 3. Thereby, about half of the lid can be opened. A tertiary curved surface can also be provided in the vicinity of the tongue piece 6. In this case, the opening of the lid 3 can be reduced. Thereby, the contents can be taken out little by little.
Those functions and effects of the cubic curved surface 5 are the same as those of FIG. When the lid 3 is opened, the horizontal state in FIG. 5B is shifted to the vertical state.
Further, since the cubic curved surface 5 of this embodiment is also provided only on a part of the lid 3 and the other part is formed flat, the same lidded container can be stacked in the vertical direction. At that time, the axis of each lidded container is substantially concentric.

次に、図６は本発明の第３実施例であり、この例が図１のそれと異なる点は、弧状壁７が楕円の一方側であって、容器本体１のフランジ部２に沿って配置されているものである。そして三次曲面５の第２横断面ｂは、容器本体１のフランジ面に対して傾斜し、フランジから中心に向って次第にその深さを浅くしている。なお、想像線ｃは三次曲面と平面との境を表す。
この例においても、蓋３の閉塞状態において、第１横断面ａは凹陥し第２横断面ｂが突出する。その作用効果も図３と同一である。そして、蓋３を開放するとき、図６（Ｂ）の水平状態から垂直状態に移行する。 Next, FIG. 6 shows a third embodiment of the present invention, which is different from that of FIG. 1 in that the arc-shaped wall 7 is on one side of an ellipse and is arranged along the flange portion 2 of the container body 1. It is what has been. And the 2nd cross section b of the tertiary curved surface 5 inclines with respect to the flange surface of the container main body 1, and makes the depth shallow gradually toward a center from a flange. The imaginary line c represents the boundary between the cubic surface and the plane.
Also in this example, in the closed state of the lid 3, the first cross section a is recessed and the second cross section b protrudes. The effect is also the same as FIG. When the lid 3 is opened, the horizontal state in FIG. 6B is shifted to the vertical state.

次に、図７は本発明の第４実施例であり、この例が図６のそれと異なる点は、弧状壁７が蓋３の中心側に形成されている点のみである。そしてその作用効果は、図６のそれと同一である。   Next, FIG. 7 shows a fourth embodiment of the present invention. This example is different from that of FIG. 6 only in that the arc-shaped wall 7 is formed on the center side of the lid 3. The operational effect is the same as that of FIG.

次に、図８は本発明の第５実施例であり、この例は三次曲面５を除いて蓋３の大部分の平面が容器本体１のフランジ部２に対して凹陥し、平坦に形成されている。そして舌片部６と蓋３の中心とを結ぶ直線状に第２横断面ｂが形成され、それに交差して第１横断面ａが形成されている。そしてその第１横断面ａ，第２横断面ｂを含む、それらの近傍に三次曲面５が形成されている。第１横断面ａは蓋３の閉塞状態で凹陥し、第２横断面ｂは突出する。その作用効果は、前記各実施例と同一である。そして、蓋３を開放するとき、図８（Ｂ）の水平状態から垂直状態に移行する。   Next, FIG. 8 shows a fifth embodiment of the present invention. In this example, most of the flat surface of the lid 3 except the cubic curved surface 5 is recessed with respect to the flange portion 2 of the container body 1, and is formed flat. ing. And the 2nd cross section b is formed in the linear form which connects the tongue piece part 6 and the center of the lid | cover 3, and the 1st cross section a is formed crossing it. A cubic curved surface 5 is formed in the vicinity thereof including the first cross section a and the second cross section b. The first cross section a is recessed when the lid 3 is closed, and the second cross section b protrudes. The operation and effect are the same as those of the above embodiments. When the lid 3 is opened, the horizontal state in FIG. 8B is shifted to the vertical state.

１ 容器本体
1a 底
２ フランジ部
３ 蓋
４ ヒンジ
５ 三次曲面
６ 舌片部
７ 弧状壁
ａ 第１横断面
ｂ 第２横断面
ｃ 想像線 1 Container body
1a Bottom 2 Flange 3 Lid 4 Hinge 5 Tertiary curved surface 6 Tongue piece 7 Arc-shaped wall a First cross section b Second cross section c Imaginary line

Claims (7)

底(1a)を有する容器本体(1)の開口縁にフランジ部(2) が形成され、そのフランジ部(2) にフィルム材または板材からなる蓋(3)が接合される蓋付き容器において、
その蓋(3)は剛性および弾性を有し、それを直線的または曲線的に横断するヒンジ(4)がその蓋(3)に設けられて、そのヒンジ部(4)を境に蓋(3)の一部が片開き扉状に開放され、
蓋(3)の閉状態で、そのヒンジ(4)を通る蓋(3)の第１横断面（ａ）は、容器本体(1)の底側に凹陥する凹曲面を有し、その第１横断面（ａ）に交差する第２横断面（ｂ）は、蓋(3)の外側に突出する凸曲面を有して、そのヒンジ(4)を含むその近傍が三次曲面(5)で形成され、
そのヒンジ(4)の回りに蓋(3)の一部を一定以上回動して開くとき、その三次曲面(5)の弾性により、第１横断面（ａ）が突然、前記凹曲面から蓋(3)側に突出する凸曲面に変形して、その開状態が保持される自己保持機構を有することを特徴とする蓋付き容器。 In a container with a lid in which a flange (2) is formed at the opening edge of a container body (1) having a bottom (1a), and a lid (3) made of a film material or a plate material is joined to the flange (2).
The lid (3) has rigidity and elasticity, and a hinge (4) that linearly or curvilinearly crosses the lid (3) is provided on the lid (3), and the lid (3) ) Is partly opened like a single door,
The first cross section (a) of the lid (3) passing through the hinge (4) in the closed state of the lid (3) has a concave curved surface that is recessed on the bottom side of the container body (1). The second cross section (b) intersecting the cross section (a) has a convex curved surface protruding outside the lid (3), and its vicinity including the hinge (4) is formed by a cubic curved surface (5). And
When a part of the lid (3) is pivoted and opened more than a certain amount around the hinge (4), the first cross section (a) suddenly opens from the concave curved surface due to the elasticity of the cubic curved surface (5). (3) A container with a lid, characterized by having a self-holding mechanism that is deformed into a convex curved surface projecting toward the side and that maintains its open state. 請求項１に記載の蓋付き容器において、
前記三次曲面(5)の平面外周は略楕円状に形成され、その長軸が前記第１横断面（ａ）上に存在し、前記第２横断面（ｂ）がその第１横断面（ａ）に直交する短軸上にある蓋付き容器。 In the lidded container according to claim 1,
The outer periphery of the cubic curved surface (5) is substantially elliptical, its long axis is on the first cross section (a), and the second cross section (b) is the first cross section (a). ) A container with a lid on a short axis perpendicular to. 請求項２に記載の蓋付き容器において、
前記長軸に沿う楕円の弧がその両端から中心に次第に、フランジ部(2) からの深さの深くなる弧状壁(7)を形成する蓋付き容器。 The lidded container according to claim 2,
A container with a lid in which an elliptical arc along the major axis gradually forms an arcuate wall (7) whose depth from the flange portion (2) gradually increases from both ends to the center. 請求項２または請求項３に記載の蓋付き容器において、
第２横断面（ｂ）の前記短軸が、フランジ面に対して傾斜している蓋付き容器。 The lidded container according to claim 2 or 3,
The lidded container in which the minor axis of the second cross section (b) is inclined with respect to the flange surface. 請求項１〜請求項４のいずれかにおいて、
前記蓋(3)の一部に蓋開放のための舌片部(6)が、容器本体(1)の外周に突設され、その舌片部(6)を含む蓋(3)の直径線に交差して前記ヒンジ(4)が設けられ、
そのヒンジ(4)の位置が容器本体(1)の直径線上または、その直径線に対して舌片部(6)に近接する位置、或いは離反する位置にある蓋付き容器。 In any one of Claims 1-4,
A tongue piece (6) for opening the lid on a part of the lid (3) is projected on the outer periphery of the container body (1), and the diameter line of the lid (3) including the tongue piece (6) The hinge (4) is provided crossing the
A lidded container in which the position of the hinge (4) is on the diameter line of the container body (1), or at a position close to or away from the tongue piece (6) with respect to the diameter line. 請求項１〜請求項５のいずれかに記載の蓋付き容器において、
前記三次曲面(5)が、前記ヒンジ(4)の近傍のみに存在し、他の部分は同一の容器の底をその蓋(3)上に載置したとき、その軸線を垂直に保持できるように、蓋(3)の上面が平坦に形成されている蓋付き容器。 In the container with a lid in any one of Claims 1-5,
The cubic curved surface (5) exists only in the vicinity of the hinge (4), and the other parts can hold the axis of the same container vertically when the bottom of the same container is placed on the lid (3). And a lidded container in which the upper surface of the lid (3) is formed flat. 請求項１〜請求項６のいずれかに記載の蓋付き容器において、
前記舌片部(6)から前記ヒンジ(4)までの範囲では、蓋(3)と容器本体(1)のフランジ部(2) との接着力をそれ以外の範囲に比べて弱くした蓋付き容器。 In the container with a lid in any one of Claims 1-6,
In the range from the tongue piece (6) to the hinge (4), with a lid that weakens the adhesive force between the lid (3) and the flange portion (2) of the container body (1) compared to the other ranges. container.
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