TWI322118B - - Google Patents

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Publication number
TWI322118B
TWI322118B TW092121130A TW92121130A TWI322118B TW I322118 B TWI322118 B TW I322118B TW 092121130 A TW092121130 A TW 092121130A TW 92121130 A TW92121130 A TW 92121130A TW I322118 B TWI322118 B TW I322118B
Authority
TW
Taiwan
Prior art keywords
flange
periphery
shape
container
opening
Prior art date
Application number
TW092121130A
Other languages
Chinese (zh)
Other versions
TW200402386A (en
Inventor
Fujii Yoshinori
Original Assignee
Fp Corp
Priority date (The priority date 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 date listed.)
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Publication date
Priority claimed from JP2002226431A external-priority patent/JP2004067122A/en
Priority claimed from JP2003103250A external-priority patent/JP4704668B2/en
Application filed by Fp Corp filed Critical Fp Corp
Publication of TW200402386A publication Critical patent/TW200402386A/en
Application granted granted Critical
Publication of TWI322118B publication Critical patent/TWI322118B/zh

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Classifications

    • 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
    • B65D1/00—Containers 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
    • B65D1/34—Trays or like shallow containers
    • 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
    • B65D1/00—Containers 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
    • B65D1/40—Details of walls
    • 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
    • B65D1/00—Containers 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
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure

Description

1322118 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種包裝容器及其製造方法。特別是 明係關於一種包裝容器之開口部周邊。 【先前技術】 在合成樹脂製包裝容器中之例如藉由板片成形所形 且在内部形成收納部之容器，於近年來，係使得省空 之要求變強。因此，需求係由發泡板片之成形品開始 至薄合成樹脂製板片之成形品。薄板片成形品係在合 脂製板片成形為容器形狀後，裁斷其容器形狀之周邊 為製品。作為一般容器形狀，係列舉具有寬口開口之 形狀。在該形狀，具備：底面板、由底面板周圍開始 之周側面板以及由周側面板之上緣開始突出於外方向 口周邊。 此外，覆蓋在容器上之蓋子係也是薄合成樹脂製板 形為蓋形狀所製造的。在蓋子中，為了使得外觀變好 此，也成形為複雜形狀，但是，在覆蓋於容器時，為 以繫合在容器周邊部之上緣和開口周邊，因此，蓋子 口部係具備突出於外方向、斜下方或下方向之開口周 但是，藉由薄合成樹脂製板片所成形之容器或蓋子 斷前述開口周邊而由板片來切離。因此，開口周邊係 容器和蓋子之輪廓而延伸成為直線狀及/或光滑之曲 狀。 因此，沿著容器輪廓而進行延伸之開口周邊係由於 312/發明說明書(補件)/92-10/92121130 本發 成並 間化 變化 成樹 而成 容器 隆起 之開 片成 ，因 了可 之開 邊。 係裁 沿著 線 成為 5 1322118 材料之板片變薄，因此，在處理容器或蓋子時，會有所謂 恐怕傷害到處理人之手或指頭之問題發生。 此外，在此種容器收納物品而在包裝用薄膜來進行包裝 時，包裝用薄膜係摩擦到開口周邊而斷掉。因此，在包裝 用薄膜之包裝時，會有所謂花費功夫之問題產生。 【發明内容】 因此，本發明其目的係解決前述習知技術之課題，提供 一種改良開口周邊之構造而安全且容易處理之包裝容器及 其製造方法。 本發明之包裝容器係裁斷容器開口部周邊之包裝容器， 其特徵為：裁斷之開口周邊係並無延長成為直線狀，沿著 長度方向而細微地進行起伏。 在裁斷之開口周邊沿著長度方向而細微地進行起伏時， 即使是藉由薄合成樹脂製板片所形成之容器，也比起薄壁 厚之周邊延長成為直線狀之狀態，還降低銳利性。因此， 即使是在手或指頭摩擦到開口周邊之狀態下，也不可能傷 害到手或指頭等。 此外，在開口周邊貼設包裝薄膜時，也不會有包裝薄膜 摩擦到開口周邊而破裂等之意外發生。 【實施方式】 圖1係本發明之一實施形態之包裝容器之立體圖。圖2 係圖1之A部分之部分擴大立體圖、俯視圖及前視圖。 在該實施形態，作為包裝容器，係提出容器本體1而進 行說明。容器本體1係具有：底板20以及由底板20之周 312/發明說明書(補件)/92-10/92121130 1322118 圍開始隆起至斜外方之周側框（周側板）1 0。底板2 0係例 如4角落變圓之概略長方形。因此，容器本體1係整體形 狀成為長方形之深盤形狀。接著，周側框1 0之上端係劃分 容器本體1之開口。在周側框1 0之上端，形成突出於外方 之凸緣1 1。凸緣1 1係成為包圍周側框1 0上端、也就是包 圍容器開口之周狀凸緣。凸緣11係對於容器開口而發揮保 持對於内外方向之強度之作用。 凸緣1 1之外周邊1 1 a係細微地進行起伏。在圖示之實 施例，凸緣外周邊1 1 a係觀察著水平方向而成為細微地進 行波動之起伏形狀。在該狀態下，起伏形狀（波形形狀） 之波峯波谷差d係成為0. 5 m m以下。此外，起伏形狀（波 形形狀）之節距（波峯和波輋間之間隔或波谷和波谷間之 間隔）p係成為1 m m左右。 但是，該波峯波谷差d係可以是0. 2〜1 . 0 m m之範圍， 最好是0.5mm以下。此外，節距p係可以是0.5〜5. Omm 之範圍，最好是1.0mm左右。 可以藉由起伏形狀成為前述數值範圍，藉由凸緣外周邊 1 1 a，而防止手指受到傷害或者是包裝薄膜被切斷。 圖3係顯示由容器本體1周側框1 0之上端開始而突出 至外方之凸緣11之其他形狀之部分立體圖、俯視圖及前視 圖。在圖3所示之實施形態，凸緣1 1整體係沿著開口周邊 而呈上下微細地進行起伏。藉此而使得凸緣外周邊11a， 在平面俯視成為幾乎筆直，但是，由橫向來看的話（沿著 水平方向來看時），延長於橫方向上（延長於水平方向上） 7 312/發明說明書(補件)/92-10/92121130 1322118 之周邊lla係成為呈上下微細地進行起伏之形狀。該 之波峯波谷差d係相同於前面實施例而成為0 . 2〜1 . 之範圍，此外，起伏之節距（波峯和波峯間之間隔或 和波谷間之間隔）p係成為0.5〜5. Oram之範圍。 正如前面實施例，可以使得凸緣外周邊1 1 a之起伏 向，成為在平面俯視所看到之起伏、水平方向之起伏 外，正如該實施形態，也可以成為橫方向（水平方向 看到之沿著上下方向而進行起伏之形狀。 或者是組合前面實施例和該實施例，凸緣外周邊1 起伏係也可以成為沿著橫方向（水平方向）和縱方向 直方向）兩者而進行起伏之複合起伏。 不管怎樣，藉由凸緣外周邊1 1 a呈微細地進行起伏 得周邊lla，不成為裁斷薄樹脂製板片之直線狀邊緣 為呈波浪變曲微細地進行起伏之邊緣，因此，該微細 行起伏之邊緣係不會傷害到人的手指或者是接觸到包 膜而切斷包裝薄膜。 圖4係顯示本發明之另外其他實施形態之凸緣1 1 外周邊lla之構造之部分擴大圖。 正如圖4(A)所示，對於凸緣11整體，形成微細 凸。也就是說，呈規則狀地形成：突出於凸緣11上面 許多小突起1 2和凹陷於凸緣1 1背面側之許多小凹陷 接著，藉由裁斷此種凸緣11而使得其外周邊lla，正 4(B)所示，成為起伏於藉由橫斷形成在凸緣11上之 小突起12和許多小凹陷13之裁斷線所形成之上下方 312/發明說明書(補件)/92_ 10/92121130 起伏 Omm 波谷 方 ，此 )所 1 a之 (垂 而使 ，成 地進 裝薄 文其 之凹 側之 13° 如圖 許多 向之 8 1322118 邊緣。 在該實施形態之狀態下，也使得凸緣外周邊1 1 a，不成 為直線狀而進行起伏，因此，降低對於手指或包裝薄膜之 接觸銳利度。 在以上實施形態，說明容器本體1之開口周邊成為起伏 形狀者。但是，本發明係並非僅容器本體1，即使是對於 覆蓋在該容器本體1之蓋之開口周邊，也是可以適用。也 就是說，使用合成樹脂製薄板片所成形之包裝容器、特別 是收納食品等之包裝容器，係不僅製作容器本體，也製作 嵌合在該容器本體上之蓋子。接著，蓋子係也相同於容器 本體，使得開口周邊係裁斷板片所形成。因此，即使是對 於蓋子之開口周邊，也可以藉由形成起伏形狀而使得開口 周邊之部分，由銳利之部分，來改變成為柔和觸感之部分。 圖5係容器本體1或蓋子18之平面俯視之圖解圖，以 剖面線來顯示凸緣1 1。可以對於該凸緣1 1之周邊1 1 a，施 加前述起伏形狀之任何一種。此外，在由凸緣11開始而突 設在容器本體嵌合著蓋子或者是在打開該嵌合之蓋子時之 進行捏抓之操作用耳1 5之狀態下，最好是在該耳1 5之外 周邊，也附加起伏形狀。 此外，正如圖6所示，在容器本體1和蓋子18藉由連 接部16而可折疊地進行連結之狀態下，可以在除去該連接 部1 6外緣以外之容器本體1之凸緣1 1之外周邊和蓋子1 8 之凸緣11之外周邊，附加起伏形狀。 此外，如果操作用耳1 5呈突出的話，則最好是在該耳 9 312/發明說明書(補件)/92-10/92121130 1322118 15之外周邊，也形成起伏形狀。 在參照圖5及圖6之說明，顯示在容器本體1之&緣1 1 之外周邊和蓋子18之凸緣11之外周邊之幾乎整個區域而 施加起伏形狀之例子，但是，也可以不是凸緣1 1外周邊之 整個區域，僅在外周邊之任意範圍，附加起伏形狀。 在以上之說明，以在容器本體或蓋子之開口部而存在突 出於外側之凸緣之狀態，作為例子，來進行說明，但是， 即使是在容器本體或蓋子之開口周邊而不存在凸緣之狀態 下，也可以對於開口周邊，來形成起伏形狀。 在圖7，顯示3種類之容器本體之縱剖面之圖解圖。正 如圖7 ( A )所示，可以分別在開口周圍具備凸緣1 1之狀 態下，於其外周邊（圖7 ( A )之T1部分），附加起伏形狀， 在圖7(B)所示之容器形狀之狀態下，於藉由T2所示之 外周邊，附加起伏形狀，在圖7(C)之狀態下，於藉由T3 所示之外周邊，附加起伏形狀。 此外，圖8係顯示蓋子之形狀例之圖解之縱剖面圖。可 以在圖8 ( A )之狀態下，於蓋子凸緣之外周邊T 4部分， 附加起伏形狀，在圖8(B)之狀態下，於朝向下方之開口 周邊T5，附加起伏形狀。 接著，就參照圊3所說明之容器本體1之製造方法而 言，參照圖9、圖10而進行說明。 容器本體1係使得藉由合成樹脂材料所形成之保麗龍珍 珠板（Polystyrene paper)，供應至成形用模具P1上，在 藉由模具形狀而使得板片發生變形後，轉移至整修模 10 312/發明說明書(補件)/92-10/92121130 1322118 (trimming die)，例如藉由具備湯普森刀刃之裁斷機而裁 斷所成形之容器，由保麗龍珍珠板而進行分離。 在圖9，顯示成形用模具P1之一例。成形用模具P1係 使得至少成形凸緣1 1之部分，形成為沿著上下方向而呈微 細波浪狀地進行起伏之起伏形狀W。可以藉由使用該模具 P1而進行成形，以便於呈上下方向之波浪狀地形成容器本 體1之凸緣1 1。 圖10係顯示藉由在板片成形為容器形狀後之整修模P2 所造成之裁斷例。在該裁斷例，顯示使用湯普森刀刃C之 例子。湯普森刀刀C之刀尖係沿著垂直於紙面之垂直方向 而形成為波狀。可以藉由使用此種湯普森刀刃C而使得凸 緣周邊，除了上下方向以外，也在左右方向上，呈波浪狀 地進行起伏。 此外，正如圖3及圖4所示之實施形態，如果對於凸緣 而形成上下方向之起伏的話，則即使是使用湯普森刀刃C 等之裁斷刀刃之刀尖成為直線狀者，也使得裁斷之凸緣外 周邊，在平面俯視，成為直線狀，但是，在橫方向（水平 方向）所看到時，沿著上下方向而進行起伏。因此，藉由 預先在凸緣，附加上下方向之起伏，而可以使用直線之裁 斷刀刃，使得製造變得容易。 此外，在裁斷包裝容器之開口碉邊之狀態下，最好是在 環境溫度1 5 °C〜5 5 °C之範圍内而進行。由於在成形品之溫 度成為15 °C以下之狀態下，容易在成形品，發生破裂而成 為不良品，相反地，在成形品之溫度成為55°C以上之高溫 11 312/發明說明書(補件)/92-10/92121130 1322118 時，恐怕成形品變得柔軟而發生變形之緣故。 就本發明之實施形態而詳細地進行說明，但是，這些不 過是為了明示本發明之技術内容而使用之具體例，本發明 係並非應該解釋限定在這些具體例，本發明之精神及範圍 係僅藉由附件之申請專利範圍所限定。 該申請案係對應於西元2002年8月2日向日本國特許 廳所提出之特願2002-226431號以及西元2003年4月7 曰向日本國特許廳所提出之特願2003-103250號，該申請 案之全部揭示係藉由引用而組裝入該申請案中。 【圖式簡單說明】 圖1係本發明之一實施形態之包裝容器本體之立體圖。 圖2(A)係前述包裝容器本體之A部之擴大圖，圖2(B) 係其俯視圖，圖2 ( C )係其前視圖。 圖3 ( A )係作為其他實施形態之包裝容·器之要部擴大 圖，圖3 ( B )係其俯視圖，圖3 ( C )係其前視圖。 圖4(A)、（B)係另外作為其他實施形態之包裝容器之要 部擴大圖，圖4 ( A )係其圖解圖，圖4 ( B )係其前視圖。 圖5係容器本體或容器蓋子之圖解俯視圖，用以說明應 該施行起伏形狀之周邊之圖。 圖6係連接容器本體和蓋子之包裝容器之圖解俯視圖， 用以說明應該施行起伏形狀之周邊位置之圖。 圖7 ( A )、（ B )、（ C )係顯示容器本體之形狀例，顯示應該 施行起伏形狀之位置之圖。 圖8 ( A )、（ B )係顯示容器蓋子之形狀例，顯示應該施行 12 312/發明說明書(補件)/92-10/92121130 1322118 起伏形狀之位置之圊。 圖9係顯示板片成形用模具之一例之立體圖。 圖1 0係顯示藉由湯普森刀刃所造成之裁斷狀態之前視 圖。 (元件符號說明） C 湯普森刀刃 d 波峯波谷差 p 節距 P 1 成形用模具 P 2 整修模 T1 外周邊 T2 外周邊 T3 外周邊 T4 外周邊 T5 開口周邊 W 起伏形狀 I 包裝容器（容器本體） 10 周側框 II 凸緣 11a 外周邊 12 小突起 13 小凹陷 15 操作用耳 16 連接部 312/發明說明書(補件)/92-10/92121130 1322118 18 包裝容器（蓋子） 20 底板1322118 发明, DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a packaging container and a method of manufacturing the same. In particular, the invention relates to the periphery of an opening of a packaging container. [Prior Art] In a synthetic resin packaging container, for example, a container formed by sheet forming and having a housing portion formed therein has made the demand for space saving stronger in recent years. Therefore, the demand is from a molded article of a foamed sheet to a molded article of a thin synthetic resin sheet. The sheet-formed product is cut into a shape of a container after the formed sheet is cut into a product. As a general container shape, the series has a shape having a wide opening. In this shape, a bottom panel, a peripheral side panel starting from the periphery of the bottom panel, and a peripheral edge of the outer side of the peripheral side panel protrude from the outer side of the outer side. Further, the cover covering the container is also made of a thin synthetic resin plate in the shape of a cover. In the cover, in order to make the appearance better, the shape is also complicated. However, when covering the container, it is attached to the upper edge of the peripheral portion of the container and the periphery of the opening. Therefore, the mouth of the cover is protruded from the outside. The circumference of the opening in the direction, the obliquely downward direction or the lower direction is cut off by the sheet by the container or the lid formed by the thin synthetic resin sheet. Therefore, the opening surrounds the contour of the container and the lid and extends into a linear and/or smooth curved shape. Therefore, the periphery of the opening extending along the contour of the container is opened by the 312/invention specification (supplement)/92-10/92121130, and the container is bulged into a tree. side. The slabs that become 5 1322118 material along the line become thinner, so when dealing with containers or lids, there is a problem that may cause damage to the hands or fingers of the handler. Further, when the article is stored in such a container and packaged in a film for packaging, the film for packaging is rubbed around the periphery of the opening and is broken. Therefore, there is a problem of so-called effort when packaging the film for packaging. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the problems of the prior art described above, and to provide a packaging container which is improved in structure around the opening and which is safe and easy to handle, and a method of manufacturing the same. The packaging container according to the present invention is a packaging container that cuts the periphery of the opening of the container, and is characterized in that the periphery of the opening of the cutting is not linearly extended, and the undulation is finely formed along the longitudinal direction. When the periphery of the opening of the cutting is finely undulated along the longitudinal direction, even the container formed of the thin synthetic resin sheet is linearly extended compared with the periphery of the thin wall, and the sharpness is also lowered. Therefore, even if the hand or the finger rubs against the periphery of the opening, it is impossible to injure the hand or the finger or the like. Further, when the packaging film is attached to the periphery of the opening, there is no possibility that the packaging film is rubbed to the periphery of the opening to be broken or the like. [Embodiment] Fig. 1 is a perspective view of a packaging container according to an embodiment of the present invention. Figure 2 is a partially enlarged perspective view, a top view and a front view of a portion A of Figure 1. In this embodiment, the container body 1 will be described as a packaging container. The container body 1 has a bottom plate 20 and a peripheral side frame (circumferential side plate) 10 which is raised from the circumference 312 of the bottom plate 20/the invention manual (supplement)/92-10/92121130 1322118 to the oblique outer side. The bottom plate 20 is, for example, a rough rectangle in which the corners are rounded. Therefore, the container body 1 has an overall shape of a rectangular deep dish. Next, the upper end of the peripheral side frame 10 is divided into the openings of the container body 1. At the upper end of the peripheral side frame 10, a flange 11 projecting from the outer side is formed. The flange 11 is a peripheral flange that surrounds the upper end of the peripheral side frame 10, that is, the opening of the container. The flange 11 functions to maintain the strength in the inner and outer directions with respect to the container opening. The outer periphery 11 1 a of the flange 1 1 is finely undulated. In the illustrated embodiment, the outer periphery 11 1 a of the flange is observed in a horizontal direction and has a undulating shape which is slightly fluctuated. 5 m以下以下。 In this state, the undulating shape (wave shape) of the peak-to-valley d is 0. 5 m m or less. Further, the pitch of the undulating shape (wave shape) (the interval between the peak and the wave or the interval between the valley and the trough) is about 1 m. However, the peak-to-valley difference d may be in the range of 0.2 to 1. 0 m m , preferably 0.5 mm or less. Further, the pitch p may be in the range of 0.5 to 5. Omm, preferably about 1.0 mm. The undulating shape can be made into the aforementioned numerical range, and the outer periphery of the flange can be prevented from being damaged or the packaging film can be cut. Fig. 3 is a partial perspective view, a plan view and a front view showing another shape of the flange 11 which protrudes from the upper end of the peripheral side frame 10 of the container body 1 and which protrudes to the outside. In the embodiment shown in Fig. 3, the flange 1 1 as a whole is undulated up and down along the periphery of the opening. Thereby, the outer peripheral edge 11a of the flange is almost straight in plan view, but is extended in the lateral direction (extended in the horizontal direction) when viewed from the lateral direction (in the horizontal direction) 7 312 / invention The periphery (lla) of the specification (supplement)/92-10/92121130 1322118 has a shape in which the undulations are finely swelled up and down. The peak-to-valley difference d is the same as that of the previous embodiment and becomes 0. 2~1. In addition, the pitch of the undulation (the interval between the peak and the peak or the interval between the peaks) is 0.5 to 5. The scope of Oram. As in the previous embodiment, the undulating direction of the outer periphery 11 a of the flange can be made to be undulating in the plan view as seen from the undulations in the horizontal direction, and as in the embodiment, it can be seen in the horizontal direction (horizontal direction). The shape of the undulation is performed along the up-and-down direction. Alternatively, in combination with the foregoing embodiment and the embodiment, the undulation of the outer periphery of the flange 1 may be undulated in both the lateral direction (horizontal direction) and the longitudinal direction. Composite undulations. In any case, the peripheral edge 11a is undulated by the outer periphery 11 1 a of the flange, and the linear edge which does not cut the thin resin sheet is an edge which is undulated by wave bending, so the fine line The undulating edge does not damage the human finger or touch the envelope to cut the packaging film. Fig. 4 is a partially enlarged view showing the structure of the outer periphery 11a of the flange 1 1 according to still another embodiment of the present invention. As shown in Fig. 4(A), a fine convex is formed for the entire flange 11. That is, it is formed in a regular shape: a plurality of small projections 12 projecting from the upper surface of the flange 11 and a plurality of small depressions recessed on the back side of the flange 11, and then the outer periphery 11a is cut by cutting the flange 11. As shown in the positive 4 (B), it becomes undulating above and below the cutting line formed by the small protrusions 12 and the plurality of small depressions 13 formed on the flange 11, and the invention specification (supplement) / 92_ 10 /92121130 undulating Omm trough side, this) 1 a (the vertical, the ground into the thin side of the concave side of the 13 ° as shown in many of the 8 1322118 edge. In this state of the state, also make the flange The outer periphery 11 a is undulated without being linear, and therefore the contact sharpness with respect to the finger or the packaging film is lowered. In the above embodiment, the periphery of the opening of the container body 1 is undulated. However, the present invention is not Only the container body 1 can be applied even to the periphery of the opening covering the lid of the container body 1. That is, a packaging container formed of a synthetic resin sheet, particularly a package for accommodating food or the like. The device not only manufactures the container body but also makes a lid fitted to the container body. Then, the lid is also the same as the container body, so that the periphery of the opening is formed by cutting the sheet. Therefore, even for the periphery of the opening of the lid, It is also possible to change the portion which becomes the soft touch by the sharp portion by forming the undulating shape. Fig. 5 is a plan view of the container body 1 or the cover 18 in plan view, showing the convex line by hatching The edge 1 1 may be applied to the periphery 1 1 a of the flange 1 1 by any of the aforementioned undulating shapes. Further, the cover is protruded from the flange 11 to be fitted to the container body or the fitting is opened. In the case of the operation of the ear 1 5 in the case of the grip, it is preferable to add a undulating shape to the periphery of the ear 15. Further, as shown in Fig. 6, the container body 1 and the cover 18 are borrowed. In a state in which the connecting portion 16 is foldably connected, the outer periphery of the flange 1 1 of the container body 1 other than the outer edge of the connecting portion 16 and the outer periphery of the flange 11 of the cover 18 can be attached. From In addition, if the operating ear 15 is protruded, it is preferable to form an undulating shape in addition to the periphery of the ear 9 312 / invention specification (supplement) / 92-10 / 92121130 1322118 15 . 5 and FIG. 6 show an example in which an undulating shape is applied to the outer periphery of the outer edge of the container body 1 and the outer periphery of the flange 11 of the cover 18, but the flange 1 may not be used. In the entire area of the outer periphery, the undulation shape is added only in any range of the outer periphery. In the above description, the state in which the flange protruding from the outer side exists in the opening of the container body or the cover is described as an example. However, even in the state where the flange is not present around the opening of the container body or the lid, the undulating shape can be formed around the periphery of the opening. In Fig. 7, an illustration of a longitudinal section of a container body of three types is shown. As shown in Fig. 7(A), the undulating shape may be added to the outer periphery (the portion T1 of Fig. 7(A)) in the state in which the flange 11 is provided around the opening, as shown in Fig. 7(B). In the state of the container shape, the undulating shape is added to the periphery shown by T2, and in the state shown in Fig. 7(C), the undulating shape is added to the periphery as indicated by T3. Further, Fig. 8 is a longitudinal sectional view showing an example of the shape of the cover. In the state of Fig. 8 (A), the undulating shape is added to the periphery T 4 of the cover flange, and in the state of Fig. 8 (B), the undulating shape is added to the opening periphery T5 facing downward. Next, a method of manufacturing the container body 1 described with reference to Fig. 3 will be described with reference to Figs. 9 and 10 . The container body 1 is supplied to a molding die P1 by a Polystyrene paper formed of a synthetic resin material, and after being deformed by the shape of the die, is transferred to the dressing die 10 312. /Inventive Manual (Supplement)/92-10/92121130 1322118 (trimming die), for example, by cutting a formed container with a Thompson blade, and separating it by a styrofoam pearl plate. An example of the molding die P1 is shown in Fig. 9 . The molding die P1 is formed such that at least a part of the forming flange 11 is formed into a undulating undulating shape W in a fine wavy shape in the vertical direction. The molding can be carried out by using the mold P1 so as to form the flange 1 1 of the container body 1 in a wave shape in the vertical direction. Fig. 10 is a view showing a cutting example caused by the refurbishing mold P2 after the sheet is formed into a container shape. In the example of the cutting, an example using the Thompson blade C is shown. The tip of the Thompson knife C is wavy along a vertical direction perpendicular to the plane of the paper. By using such a Thompson blade C, the periphery of the flange can be undulated in a wave shape in addition to the up-and-down direction in the left-right direction. Further, in the embodiment shown in Fig. 3 and Fig. 4, if the undulation in the vertical direction is formed for the flange, even if the cutting edge of the cutting blade using the Thompson blade C or the like is linear, the projection is made convex. The outer periphery of the outer edge is linear in plan view, but is undulated in the vertical direction when viewed in the lateral direction (horizontal direction). Therefore, by adding the undulation in the vertical direction to the flange in advance, it is possible to use a straight cutting blade to facilitate the manufacture. Further, in the state where the opening of the packaging container is cut, it is preferably carried out at an ambient temperature of from 15 ° C to 5 5 ° C. When the temperature of the molded article is 15 ° C or lower, the molded article is liable to be broken and becomes a defective product. Conversely, the temperature of the molded article is 55 ° C or higher. 11 312 / Invention Specification (Repair) ) /92-10/92121130 1322118, I am afraid that the molded product becomes soft and deformed. The embodiments of the present invention have been described in detail. However, these are intended to be illustrative of the technical details of the present invention. The present invention is not intended to be limited to the specific examples, and the spirit and scope of the present invention is only This is defined by the scope of the patent application of the attachment. This application corresponds to the special request No. 2002-226431 submitted to the Japanese Patent Office on August 2, 2002, and the Japanese Patent Office No. 2003-103250 submitted to the Japanese Patent Office on April 7, 2003. All disclosures of the application are incorporated by reference into the application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a packaging container body according to an embodiment of the present invention. Fig. 2(A) is an enlarged view of a portion A of the packaging container body, Fig. 2(B) is a plan view thereof, and Fig. 2(C) is a front view thereof. Fig. 3 (A) is an enlarged view of a main part of a packaging container of another embodiment, Fig. 3 (B) is a plan view thereof, and Fig. 3 (C) is a front view thereof. 4(A) and 4(B) are enlarged views of the main part of the packaging container according to another embodiment, and Fig. 4(A) is a schematic view thereof, and Fig. 4(B) is a front view thereof. Figure 5 is a diagrammatic plan view of the container body or container lid illustrating the periphery of the undulating shape. Figure 6 is a diagrammatic plan view of a packaging container connecting the container body and the lid to illustrate the peripheral position where the undulating shape should be applied. Fig. 7 (A), (B), and (C) show an example of the shape of the container body, and shows a position at which the undulating shape should be performed. Fig. 8 (A) and (B) show an example of the shape of the container lid, showing that the position of the undulating shape of the 12 312/invention specification (supplement)/92-10/92121130 1322118 should be performed. Fig. 9 is a perspective view showing an example of a mold for forming a sheet. Figure 10 shows a front view of the cutting state caused by the Thompson blade. (Component symbol description) C Thompson blade d Wave crest difference p Pitch P 1 Forming die P 2 Renovation die T1 Outer periphery T2 Outer periphery T3 Outer periphery T4 Outer periphery T5 Opening periphery W Rough shape I Packaging container (container body) 10 Peripheral side frame II Flange 11a Outer periphery 12 Small protrusion 13 Small recess 15 Operating ear 16 Connection part 312 / Invention manual (supplement) / 92-10/92121130 1322118 18 Packaging container (cover) 20 Base plate

312/發明說明書(補件)/92-10/92121130 14312/Invention Manual (supplement)/92-10/92121130 14

TW092121130A 2002-08-02 2003-08-01 Packaging container and method of producing the same TW200402386A (en)

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JP2002226431A JP2004067122A (en) 2002-08-02 2002-08-02 Packaging container
JP2003103250A JP4704668B2 (en) 2003-04-07 2003-04-07 Method for producing synthetic resin container and synthetic resin container

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ITMC20070004U1 (en) * 2007-01-19 2008-07-20 Clabo Group Spa REFRIGERATED COUNTER WITH ICE CREAM TRAYS IN TRANSPARENT MATERIAL.
USD743812S1 (en) * 2012-02-10 2015-11-24 Curwood, Inc. Rigid ribbed tray
CN113998260B (en) * 2020-06-14 2024-02-06 深圳市望盛科技有限公司 Processing equipment of special box body
FR3123897B1 (en) * 2021-06-14 2023-06-09 Faerch France Sas SET OF EASY DESTACKING TRAYS

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US3005572A (en) * 1959-09-28 1961-10-24 Prophylactic Brush Co Plastic case construction
US3097780A (en) * 1961-09-12 1963-07-16 American Can Co Paper plate
US3690503A (en) * 1970-03-05 1972-09-12 John J Curry Combined container and closure
BE786653A (en) * 1971-07-29 1973-01-24 Sidaplax PACKAGING
JPS5665809U (en) * 1979-10-29 1981-06-02
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JP2001063758A (en) * 1999-06-24 2001-03-13 Showa Boeki Kk Food tray
US20010003341A1 (en) * 1999-09-28 2001-06-14 Richard T. Gentry Container with crack-resistant rim
US6886704B2 (en) * 2002-10-22 2005-05-03 Pactiv Corporation Containers and container assemblies with releasable locking feature
USD565906S1 (en) * 2006-01-20 2008-04-08 Dart Industries Inc. Plate

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US20090188932A1 (en) 2009-07-30
US20060011638A1 (en) 2006-01-19
EP1555211A1 (en) 2005-07-20
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KR20050080192A (en) 2005-08-11
EP1555211A4 (en) 2008-07-30

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