JP2668300B2 - 熱可塑性カップ - Google Patents

熱可塑性カップ

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Publication number
JP2668300B2
JP2668300B2 JP28724091A JP28724091A JP2668300B2 JP 2668300 B2 JP2668300 B2 JP 2668300B2 JP 28724091 A JP28724091 A JP 28724091A JP 28724091 A JP28724091 A JP 28724091A JP 2668300 B2 JP2668300 B2 JP 2668300B2
Authority
JP
Japan
Prior art keywords
container
side wall
wall
sheet
radially inwardly
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
Application number
JP28724091A
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English (en)
Other versions
JPH05330552A (ja
Inventor
ジエイムズ・エイ・ヒル
ジヨン・イー・バーチ
Original Assignee
オーエンス―イリノイ・ラベルス・インコーポレーテツド
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Publication of JPH05330552A publication Critical patent/JPH05330552A/ja
Application granted granted Critical
Publication of JP2668300B2 publication Critical patent/JP2668300B2/ja
Anticipated expiration legal-status Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02Thermal shrinking
    • B29C61/025Thermal shrinking for the production of hollow or tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61Joining from or joining on the inside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • B29C66/83221Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/265Drinking cups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D11/00Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Packages (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Table Devices Or Equipment (AREA)
  • Stackable Containers (AREA)
  • Laminated Bodies (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Description

【発明の詳細な説明】
【0001】この発明は、嵌め合わせカップ状容器、そ
して特に熱収縮性の熱可塑性材料でつくられる上記容器
に関するものである。
【0002】発明の背景と要約 米国特許第3,854,583号(アンバーグその他)
は、海綿状熱可塑性材料からつくられ、かつ容器の口に
は巻いたへりすなわちビードが設けられている、本体を
含む容器を開示している。上記の口に巻いたへりすなわ
ちビードは、容器の口の部分において、その容器を強化
するのに役立ち、この容器から飲料を飲むのに滑らかな
縁を与え、しかもキャップすなわちかぶせ蓋を容器に緊
締するのに有効な、容器の側壁からの突起を備える。上
記米国特許第3,854,583号に示された形式の容
器は、例えば、コーヒー飲料の一回に飲む実用量に対す
るカップとして大規模に利用されてきた、そしてこのよ
うに利用される時には、上記容器の本体は、一般に、熱
収縮性−熱可塑性材料の長方形半加工品から、嵌め合わ
せまたは円錐台形状に作られ、その作られる工程は円錐
台成形マンドレルの外面に対して、上記半加工品から成
形される円筒スリーブの収縮を含む工程による。一般
に、上記のようなカップは、米国特許第4,053,3
46号(アンバーグその他)に開示されたものに類似の
装置により作られ、そして米国特許第4,072,54
9号(アンバーグその他)に開示されたものに類似の装
置によって作ることもできる。
【0003】1989年4月14日出願の米国特許出願
第330,026号および、1990年4月3日出願の
米国特許出願第504,168号には、容器が倒立位置
で作られる類似の装置が開示されている。上記容器は、
その底部に凹所を設けるならば、一層安定になることは
知られている。このような凹所は、発泡シートをまず成
形用プレフォーム上で収縮し、この成形用プレフォーム
から取り出した後、圧縮成形用金型内に置き、最初に加
熱し、次に冷却する方法と装置で成形されることが示唆
されている。米国特許第3,967,991号を調べら
れたい。このような方法は、成功したとしても、高価で
時間を浪費し、しかも高価で複雑な付帯設備を必要とす
る。
【0004】従って、本発明の主目的は、まずスリーブ
状部材を作るためヒートシールすなわち溶封される、両
端が類似しているシートから成形され、底部に凹所が設
けられ;公知の装置で容易に成形されて、上記凹所が設
けられた底部が容器に安定性を与え;容器が容易に積み
重ねられ;容器がコーヒーまたは茶等の香辛料を受け入
れるに十分な大きさの穴を有し、計量分配機に使用する
ように嵌め合い;そして上記穴の深さが比較的容易に変
更できる、すなわち上記大きな穴の体積は、その下縁で
上方に折り込まれた二重壁部分の深さすなわち環状部分
と分離した底部部材すなわち円板の位置、により適当に
変更することもでき、かつ凹所が設けられた底部の強度
はそのまま確保される2部分からなる嵌め合わせ容器を
提供することにある。本発明によれば、2部分からなる
嵌め合わせカップ状容器は、熱収縮性−熱可塑性材料の
両端が類似している単一シートから作られた側壁を含
み、このシートの両端は液密継目を作るように相互に結
合される。上記側壁は容器の上端部の開口部付近の点か
ら、底部付近の点まで内向きかつ下方に延び出し、上記
容器はさらに内壁および外壁が圧縮された隣接関係にあ
る二重壁部分を形成する上記側壁の底に凹所が設けられ
た底部を含む上記熱可塑性カップ状容器であって、上記
凹所が設けられた底部は、上記容器の開口部に向かって
その下縁に沿い折り込まれた一体折込部分;この一体折
込部分の内壁の上端部から半径方向内側に延び出る環状
部分;およびこの半径方向内側に延び出る環状部分の外
径よりも小さく、かつ内径よりも大きな直径を有して環
状部分の上方に横たわり、かつこの半径方向内側に延び
出る環状部分の上面に封止結合される1枚の円板すなわ
ち分離した底部部材;からなるものである。
【0005】詳細な説明 図1および2について説明すると、本発明を具体化する
容器Cは、フォームプラスチック材料で作られ、そして
嵌め合わせすなわち一般に円錐台形状をしている。容器
Cの巻いたへりRは、容器の開放大端部に位置し、そし
て上記容器Cはまた、小端部Eを有し、前記米国特許第
3,854,583号に大体記載されているように、上
記容器Cが直立位置にある時に、例えば、ホットコーヒ
ーを入れることができるように、上記小端部Eは閉鎖さ
れる。図1および2に示されるように、上記容器の本体
側壁Bの下縁は、上記側壁に一体接合される、軸線方向
外壁10で形成され、そして一体接合部11は軸線方向
内壁12を上記外壁10に接合する。半径方向内側に伸
び出す一体環状リップ13は、上記内壁12の上端部か
ら伸び出し、その上面は、フォームプラスチック材料で
作られる、底部形成部材すなわち円板14にヒートシー
ルすなわち溶封で結合される。上記外壁10、内壁12
は、壁10、12の厚さ合計が、上記側壁Bの残余部分
の厚さの2倍よりも小さくなるように圧縮される。容器
の面は全体にわたって滑らかである。上記側壁Bは、一
体肩16により外壁10に通常接合され、最低の堆積の
高さ内で、容器の積み重ねを容易にする。上記内壁12
と外壁10とは平行で、かつ隣接関係で圧縮される。
【0006】従って、上記容器Cは、安定性を与える凹
所を設けた底部、と容器を互いの上に堆積するのを禁止
されずに、コーヒーまたは茶等の香辛料で満たし得るよ
うに作られた穴、とを有する。勿論、円筒状またはその
他嵌め合わせしない容器が、その容器開放端部に、上記
容器Cの巻いたへりRに類似の巻いたへりを備え得るこ
とも予想される。上記容器C、または少なくともその本
体側壁Bは、前記米国特許第3,854,583号、お
よび前記米国特許第4,053,346号に開示された
もののほぼ類似装置、または適当に変型された前記米国
特許第4,072,549号に開示されたものにほぼ類
似の装置の教示するものに従い、適当な熱収縮性−熱可
塑性材料の長方形半加工品から好適に作られる。
【0007】一回に飲む飲料の実用量、すなわち6〜2
0oz. 容器を提供するための、容器の製造において、上
記引用の任意の形式の装置により、一般に各容器は、硬
質の延伸海綿状高分子材料、例えば、約18〜25mils
(0.018〜0.025inch)の初期厚さを有し、か
つ約10〜12PCF(ポンド/立方フート)の密度を
有する、海綿状汎用の、または中間耐衝撃性ポリスチレ
ンの半加工品から作られる。勿論、硬質の熱可塑性材料
の他形式の使用が予想されるが、海綿状ポリスチレンを
単独に、または例えば、海綿状ポリスチレンの薄い表層
と同時押出しの他の材料と結合したものが、経済、剛性
および断熱特性のためには望ましい。
【0008】円筒状スリーブは、スリーブ巻取位置にお
いて、適当な熱収縮材料の不定長のウエブから連続的に
切断される長方形の半加工品から、スリーブ形成マンド
レル上で連続して作られる。各スリーブは、上記スリー
ブ形成マンドレル上で形成され、そして両端は、カップ
製造機械の加熱部分を連続的にマンドレルと共に通過前
進し、熱により相互に重複関係に結合される。上記加熱
部分は、好適には上記マンドレルの上方および両側の、
細長い電気的赤外線輻射加熱器の形式で、それらが前進
するにつれ、そしてスリーブの材料の熱収縮能力のため
に、上記加熱部分は、収縮マンドレル上の円筒状スリー
ブを徐々にマンドレルと密に係合した関係に収縮させ、
へりのない容器の本体を形成する。さらに、各マンドレ
ルは、他の加熱部分を通過するにつれ、それ自体の軸線
の周りに回転され、上記マンドレル上のスリーブの均一
な収縮を与える。
【0009】このように、開放上端部を有し、かつ凹所
の設けられた底部を含む、連続した側壁からなる、2部
分構成の嵌め合わせカップ状容器が提供されることが理
解される。上記側壁は、熱収縮性−熱可塑性材料の両端
が類似している単一シートから作られる。このシートの
両端は、液密継目に沿い相互に結合される。上記側壁
は、容器の上端開口部付近の点から、底部付近の点まで
内向きかつ下方に延び出し、上記容器はさらに内壁およ
び外壁が圧縮された隣接関係にある二重壁部分を形成す
上記側壁の底に凹所が設けられた底部を含む熱可塑性
カップ状容器であって、その特徴とするところは、上記
凹所が設けられた底部は、上記容器の開口部に向かって
その下縁に沿い折り込まれた一体折込部分;この一体折
込部分の内壁の上端部から半径方向内側に延び出る環状
部分;およびこの半径方向内側に延び出る環状部分の外
径よりも小さく、かつ内径よりも大きな直径を有して環
状部分の上方に横たわり、かつこの半径方向内側に延び
出る環状部分の上面に封止結合される分離した底部部
;からなることにある。
【0010】従って、2部分からなる嵌め合わせ容器
で、スリーブ状部材を与えるため、まずヒートシールさ
れる、両端が類似したシートから作られ、かつ凹所のあ
る底部を有し;この容器が公知の装置上で容易に作ら
れ;そして凹所が設けられた底部の構造は容器に安定性
を与え;上記容器が容易に積み重ねられ;容器がコーヒ
ーまたは茶等の香辛料を受け入れるに十分な大きさの穴
を有し、計量分配機に使用するように嵌め合い;そして
上記穴の深さが比較的容易に変更できる、すなわち上記
大きな穴の体積は、その下縁で上方に折り込まれた二重
壁部分の深さすなわち環状部分と円板の位置、により適
当に変更することもでき、かつ凹所が設けられた底部の
強度はそのまま確保されるという優れた効果をあらわ
す、2部分からなる嵌め合わせ容器が提供されることが
理解される。
【図面の簡単な説明】
【図1】本発明を具体化する容器の部分断面立面図であ
る。
【図2】上記容器の一部の部分垂直断面図である。
【符号の説明】
10 軸線方向外壁 11 一体接合部 12 一体折込部分すなわち軸線方向内壁 13 一体環状リップすなわち環状部分(半径方向内側
に伸び出る) 14 円板すなわち分離した底部部材 15 凹所が設けられた底部 16 一体肩 B 本体側壁 C 容器 E 小端部 R 巻いたへり
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭48−71481(JP,A) 実開 昭57−11780(JP,U)

Claims (1)

    (57)【特許請求の範囲】
  1. 【請求項1】カップ状容器(C)で、熱収縮性−熱可塑
    性材料の両端が類似した単一シートから作られた側壁
    (B)を含み、上記単一シートの両端が継目を作るよう
    に相互に結合され、上記側壁(B)が上記容器(C)の
    上端部の開口部付近の一点から、底部付近の一点まで内
    向きかつ下方に延び出し、上記容器(C)はさらに内壁
    (12)および外壁(10)が圧縮された隣接関係にあ
    る二重壁部分を形成する上記側壁の底に凹所が設けられ
    た底部(15)を含む上記熱可塑性カップ状容器(C)
    であって、 上記凹所が設けられた底部(15)は、上記容器の開口
    部に向かってその下縁に沿い折り込まれた一体折込部
    分;該一体折込部分の内壁(12)の上端部から半径方
    向内側に延び出る環状部分(13);および該半径方向
    内側に延び出る環状部分(13)の上方に横たわり、
    つ該半径方向内側に延び出る環状部分(13)の上面に
    封止結合される1枚の分離した底部部材(14);から
    なることを特徴とする前記熱可塑性カップ状容器。
JP28724091A 1990-10-09 1991-10-08 熱可塑性カップ Expired - Lifetime JP2668300B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/594,533 US5062568A (en) 1990-10-09 1990-10-09 Thermoplastic cup and method and apparatus for making
US7/594533 1990-10-09
US07/594533 1990-10-09

Publications (2)

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JPH05330552A JPH05330552A (ja) 1993-12-14
JP2668300B2 true JP2668300B2 (ja) 1997-10-27

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US (1) US5062568A (ja)
EP (1) EP0480675B1 (ja)
JP (1) JP2668300B2 (ja)
AT (1) ATE116615T1 (ja)
AU (1) AU640271B2 (ja)
DE (1) DE69106477T2 (ja)
ES (1) ES2066369T3 (ja)
NZ (1) NZ240007A (ja)

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Also Published As

Publication number Publication date
EP0480675A1 (en) 1992-04-15
ATE116615T1 (de) 1995-01-15
EP0480675B1 (en) 1995-01-04
AU8551591A (en) 1992-04-16
DE69106477T2 (de) 1995-05-11
NZ240007A (en) 1993-10-26
JPH05330552A (ja) 1993-12-14
AU640271B2 (en) 1993-08-19
DE69106477D1 (de) 1995-02-16
US5062568A (en) 1991-11-05
ES2066369T3 (es) 1995-03-01

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