200402386 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 200402386 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2 0以及由底板2 0之周 312/發明說明書(補件)/9240/92121130 200402386 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1 1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 mm以下。此外，起伏形狀（波 形形狀）之節距（波峯和波峯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 . Omm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1 1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1 1 a， 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 200402386 之周邊1 1 a係成為呈上下微細地進行起伏之形狀。該起伏 之波峯波谷差d係相同於前面實施例而成為0 . 2〜1 . 0 mm 之範圍，此外，起伏之節距（波峯和波峯間之間隔或波谷 和波谷間之間隔）p係成為0 . 5〜5. 0 m m之範圍。 正如前面實施例，可以使得凸緣外周邊1 1 a之起伏方 向，成為在平面俯視所看到之起伏、水平方向之起伏，此 外，正如該實施形態，也可以成為橫方向（水平方向）所 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 1 a之 起伏係也可以成為沿著橫方向（水平方向）和縱方向（垂 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呈微細地進行起伏而使 得周邊1 1 a，不成為裁斷薄樹脂製板片之直線狀邊緣，成 為呈波浪彎曲微細地進行起伏之邊緣，因此，該微細地進 行起伏之邊緣係不會傷害到人的手指或者是接觸到包裝薄 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及其 外周邊1 1 a之構造之部分擴大圖。 正如圖4 ( A )所示，對於凸緣1 1整體，形成微細之凹 凸。也就是說，呈規則狀地形成：突出於凸緣1 1上面側之 許多小突起1 2和凹陷於凸緣1 1背面側之許多小凹陷1 3。 接著，藉由裁斷此種凸緣1 1而使得其外周邊1 1 a，正如圖 4(B)所示，成為起伏於藉由橫斷形成在凸緣11上之許多 小突起1 2和許多小凹陷1 3之裁斷線所形成之上下方向之 312/發明說明書(補件)/92-10/92121130 200402386 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1 1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1 6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1 1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 200402386 1 5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之凸緣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T 2所示之 外周邊，附加起伏形狀，在圖7 ( C )之狀態下，於藉由T 3 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T 5，附加起伏形狀。 接著，就參照圖3所說明之容器本體1之製造方法而 言，參照圖9、圖1 0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 200402386 (trimming die)，例如藉由具備湯普森刀刃之裁斷 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 使得至少成形凸緣1 1之部分，形成為沿著上下方向 細波浪狀地進行起伏之起伏形狀W。可以藉由使用1 P 1而進行成形，以便於呈上下方向之波浪狀地形成 體1之凸緣1 1。 圖1 0係顯示藉由在板片成形為容器形狀後之整十I 所造成之裁斷例。在該裁斷例，顯示使用湯普森刀 例子。湯普森刀刃C之刀尖係沿著垂直於紙面之垂 而形成為波狀。可以藉由使用此種湯普森刀刃C而 緣周邊，除了上下方向以外，也在左右方向上，呈 地進行起伏。 此外，正如圖3及圖4所示之實施形態，如果對 而形成上下方向之起伏的話，則即使是使用湯普森 等之裁斷刀刃之刀尖成為直線狀者，也使得裁斷之 周邊，在平面俯視，成為直線狀，但是，在橫方向 方向）所看到時，沿著上下方向而進行起伏。因此 預先在凸緣，附加上下方向之起伏，而可以使用直 斷刀刃，使得製造變得容易。 此外，在裁斷包裝容器之開口周邊之狀態下，最 環境溫度1 5 °C〜5 5 °C之範圍内而進行。由於在成形 度成為1 51以下之狀態下，容易在成形品，發生破 為不良品’相反地’在成形品之Ά度成為55C以上 312/發明說明書(補件)/92-10/92121130 機而裁 P1係 而呈微 凌模具 容器本 卜模P2 刃C之 直方向 使得凸 波浪狀 於凸緣 刀刃C 凸緣外 (水平 ，藉由 線之裁 好是在 品之溫 裂而成 之南溫 11 200402386 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2 0 0 2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 日向日本國特許廳所提出之特願2 0 0 3 - 1 0 3 2 5 0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 2328 312/發明說明書(補件)/92-10/92121130 200402386 起伏形狀之位置之圖。 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 ρ 節距 P1 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 1 3 小凹陷 15 操作用耳 16 連接部 13 312/發明說明書(補件)/92-10/92121130 200402386 18 包裝容器（蓋子） 2 0 底板 /200402386 (1) Description of the invention: [Technical field to which the invention belongs] The present invention relates to a packaging container and a manufacturing method thereof. In particular, it refers to the periphery of the opening of a packaging container. [Prior Art] A container formed of a synthetic resin packaging container, for example, formed by sheet molding and having a storage portion formed therein, has recently made a demand for space-saving. Therefore, the demand is from a molded product of a foamed sheet to a molded product of a thin synthetic resin sheet. The thin plate molded product is formed by cutting a periphery of the shape of the container into a product after the sheet made of the fat is formed into a container shape. As a general container shape, the series has a shape with a wide mouth opening. This shape includes a bottom panel, a peripheral side panel starting from the periphery of the bottom panel, and a peripheral side panel protruding from the upper edge of the peripheral side panel. In addition, the lid covering the container is made of a thin synthetic resin plate having a lid shape. In order to improve the appearance of the lid, the lid is also formed into a complicated shape. However, when covering the container, it is fitted to the upper edge of the container peripheral portion and the periphery of the opening. Therefore, the lid mouth portion is provided with a protrusion. Orientation, obliquely downward, or downward openings. However, a container or lid formed by a thin synthetic resin sheet cuts the periphery of the opening and is cut off by the sheet. Therefore, the periphery of the opening is extended to a straight and / or smooth curve by the outline of the container and the lid. Therefore, the perimeter of the opening extending along the outline of the container is due to 312 / Invention Specification (Supplement) / 92-10 / 92121130, which has been developed and transformed into a tree. side. The linen becomes 5 200402386 along the line. The sheet becomes thinner. Therefore, when handling containers or lids, there may be a problem that may cause the hand or finger to be injured. In addition, when such a container contains articles and is packed with a packaging film, the packaging film rubs against the periphery of the opening and breaks. Therefore, there is a problem of so-called labor when packaging a film for packaging. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the problems of the conventional techniques described above, and to provide a packaging container which is improved in the structure around the opening and is safe and easy to handle, and a method for manufacturing the same. The packaging container according to the present invention is a packaging container around the opening of the cutting container, and is characterized in that the periphery of the cutting opening is not extended into a straight line and is slightly undulated along the longitudinal direction. When the periphery of the cut opening is slightly undulated along the longitudinal direction, even a container formed of a thin synthetic resin sheet is extended to a straight state compared to a thin-walled periphery, and sharpness is reduced. Therefore, even when the hand or finger is rubbed against the periphery of the opening, the hand or finger cannot be injured. In addition, when the packaging film is attached to the periphery of the opening, there is no accident that the packaging film rubs against the periphery of the opening and breaks. [Embodiment] Fig. 1 is a perspective view of a packaging container according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view, a top view, and a front view of part A of FIG. 1. In this embodiment, as the packaging container, the container body 1 is presented and described. The container body 1 has a bottom plate 20 and a circumference from the bottom plate 20 312 / Invention Specification (Supplement) / 9240/92121130 200402386 The peripheral side frame (peripheral side plate) 10 which is raised from the periphery to the oblique outer side. The bottom plate 20 is, for example, a rough rectangle with four corners rounded. Therefore, the overall shape of the container body 1 is a rectangular deep disk shape. Next, the upper end of the peripheral frame 10 divides the opening of the container body 1. On the upper end of the peripheral side frame 10, a flange 11 protruding outward is formed. The flange 11 is a peripheral flange that surrounds the upper end of the peripheral side frame 10, that is, that surrounds the opening of the container. The flange 11 plays a role in maintaining the strength of the container opening to the inside and outside in relation to the container opening. The periphery 1 1 a outside the flange 11 is slightly undulated. In the embodiment shown in the figure, the outer periphery 1 1 a of the flange is a undulating shape that is slightly fluctuated in the horizontal direction. In this state, the peak-to-valley difference d of the undulating shape (wave shape) becomes 0.5 mm or less. In addition, the pitch of the undulating shape (wave shape) (the interval between the peaks and the peaks or the interval between the valleys and the troughs) P is about 1 mm. However, the peak-to-valley difference d system may be in a range of 0.2 to 1.0 mm, and preferably 0.5 mm or less. In addition, the pitch p may be in the range of 0.5 to 5. Omm, preferably about 1.0mm. The undulating shape can be used as the aforementioned value range, and the outer periphery of the flange 1 1 a can prevent fingers from being injured or the packaging film from being cut. Fig. 3 is a partial perspective view, a top view, and a front view showing other shapes protruding from the upper end of the side frame 10 on the periphery of the container body and protruding to the outer flange 11; In the embodiment shown in Fig. 3, the flange 11 as a whole is finely undulated up and down along the periphery of the opening. As a result, the outer periphery 1 1 a of the flange becomes almost straight in plan view. However, when viewed in a horizontal direction (when viewed in a horizontal direction), it extends in a horizontal direction (in the horizontal direction) 7 312 / Invention Specification (Supplement) / 92-10 / 92121130 200402386 The periphery 1 1 a is a shape that is undulated up and down. The undulating peak-to-valley difference d is the same as in the previous embodiment and is in the range of 0.2 to 1.0 mm. In addition, the undulating pitch (the interval between the crests and the crests or the interval between the crests and the troughs) p is The range of 0.5 to 5.0 mm. As in the previous embodiment, the undulation direction of the outer periphery 1 1 a of the flange can be the undulation seen in a plan view and the undulation in the horizontal direction. In addition, as in this embodiment, it can also be the horizontal direction It is seen as undulating along the up and down direction. Alternatively, by combining the previous embodiment and this embodiment, the undulation system of the outer periphery 1 1 a of the flange may be a compound undulation in both the horizontal direction (horizontal direction) and the vertical direction (vertical direction). In any case, the outer periphery 1 1 a of the flange is finely undulated, so that the periphery 1 1 a does not become a straight edge of the cut thin resin plate, but an edge that is finely undulated in a wavy curve. The finely undulating edges do not hurt human fingers or touch the packaging film to cut the packaging film. Fig. 4 is a partially enlarged view showing the structure of the flange 11 and the outer periphery 1 1 a of still another embodiment of the present invention. As shown in Fig. 4 (A), fine protrusions and depressions are formed in the flange 11 as a whole. That is, they are formed in a regular pattern: a plurality of small protrusions 12 protruding from the upper side of the flange 11 and a plurality of small depressions 13 recessed from the back side of the flange 11. Next, by cutting such a flange 11 to make its outer periphery 1 1 a, as shown in FIG. 4 (B), many small protrusions 12 and many undulations formed on the flange 11 are traversed. Edge of the 312 / Invention Specification (Supplement) / 92-10 / 92121130 200402386 formed by the cutting line of the small depression 1 3 in the upper and lower direction. In the state of this embodiment, the outer periphery 1 1 a of the flange is not undulated and straightened, so that the sharpness of contact with the fingers or the packaging film is reduced. In the above embodiment, a case where the periphery of the opening of the container body 1 has an undulating shape will be described. However, the present invention is not limited to the container main body 1, and is applicable to the periphery of the opening covering the lid of the container main body 1. That is, a packaging container formed by using a thin sheet of synthetic resin, particularly a packaging container for storing food, etc., is made not only of the container body but also a lid fitted to the container body. Next, the lid is also the same as the container body, so that the periphery of the opening is formed by cutting the plate. Therefore, even for the periphery of the opening of the lid, the portion around the opening can be changed from a sharp portion to a soft-touch portion by forming an undulating shape. Fig. 5 is a plan view of the container body 1 or the lid 18 in a plan view, and the flange 11 is shown by a section line. Any of the aforementioned undulating shapes may be applied to the periphery 1 1 a of the flange 11. In addition, in the state of the ear 1 5 protruding from the flange 11 and being fitted to the container body with the lid protruding, or the pin 15 for gripping operation when the fitted lid is opened, the ear 1 is preferably 5 and other perimeters are also undulated. In addition, as shown in FIG. 6, in a state where the container body 1 and the lid 18 are foldably connected by the connecting portion 16, the flange 1 of the container body 1 other than the outer edge of the connecting portion 16 can be removed. The outer perimeter of 1 and the flange 11 of the cover 18 are undulated. In addition, if the operation ear 15 protrudes, it is preferable to form an undulating shape around the periphery of the ear 9312 / Invention Specification (Supplement) / 92-10 / 92121130 20040238615. In the description with reference to FIGS. 5 and 6, an example in which the undulating shape is applied to almost the entire periphery of the outer periphery of the flange 11 of the container body 1 and the outer periphery of the flange 11 of the lid 18 is shown. The entire area of the outer periphery of the edge 11 is undulated only in an arbitrary range of the outer periphery. In the above description, the state in which the flange protruding from the outside exists in the opening portion of the container body or the lid is taken as an example, but even if there is no flange around the opening of the container body or the lid, In the state, the undulating shape may be formed around the opening. FIG. 7 is a schematic diagram showing a longitudinal section of three types of container bodies. As shown in FIG. 7 (A), a undulating shape may be added to the outer periphery (part T1 of FIG. 7 (A)) in a state where the flange 11 is provided around the opening, respectively, as shown in FIG. 7 (B). In the state of the container shape, an undulating shape is added to the outer periphery shown by T 2, and in the state of FIG. 7 (C), an undulating shape is added to the outer periphery shown by T 3. In addition, FIG. 8 is a schematic longitudinal sectional view showing an example of the shape of the lid. In the state shown in FIG. 8 (A), a undulating shape may be added to the peripheral portion T4 outside the cover flange, and in the state shown in FIG. 8 (B), a undulating shape is added to the peripheral opening T5 facing downward. Next, the manufacturing method of 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 such that a polystyrene paper formed of a synthetic resin material is supplied to the forming mold P1, and the plate is deformed by the shape of the mold, and then transferred to the repair mold 10 312 / Invention Specification (Supplement) / 92-10 / 92121130 200402386 (trimming die) For example, a container formed by cutting with a Thompson blade is separated by a Polyurethane pearl plate. An example of the forming mold P1 is shown in FIG. 9. The molding die is formed so that at least a portion of the flange 11 is formed in a undulating shape W which is undulated in a fine wave shape in the vertical direction. The shape can be formed by using 1 P 1 so that the flange 11 of the body 1 is formed in a wave shape in the vertical direction. Fig. 10 shows an example of cutting caused by the whole ten I after the plate is formed into a container shape. This cutting example shows an example using a Thompson knife. The tip of the Thompson blade C is formed in a wave shape along a perpendicular to the paper surface. By using such a Thompson blade C, the periphery can be undulated in addition to the up-down direction as well as in the left-right direction. In addition, as shown in the embodiment shown in FIGS. 3 and 4, if the ups and downs are formed by the pair, even if the cutting edge of the cutting edge of Thompson and the like is made straight, the cutting periphery will be viewed in plan. Is straight, but when viewed in the horizontal direction, it fluctuates in the vertical direction. Therefore, it is possible to use a vertical cutting edge to add a undulation to the flange in advance, which facilitates manufacturing. In addition, the cutting is performed around the opening of the packaging container within the range of the maximum ambient temperature of 15 ° C to 55 ° C. In the state where the degree of molding becomes 1 51 or less, it is easy to break into molded products and become defective. Conversely, the degree of molding becomes 55C or higher. 312 / Invention Manual (Supplement) / 92-10 / 92121130 Machine The cutting direction of P1 is a micro-injection mold container. The straight direction of the blade C makes the convex wave shape outside the flange of the flange C of the flange (horizontal. The cutting of the line is the south of the product.) When the temperature is 11200402386, the molded product may be soft and deformed. The embodiment of the present invention will be described in detail. However, these are only specific examples used to clarify the technical content of the present invention. The present invention is It should not be construed as being limited to these specific examples, but the spirit and scope of the present invention are limited only by the scope of the attached patent application. This application corresponds to the one filed with the Japan Patent Office on August 2, 2002. Japanese Patent Application No. 2002-226431 and Japanese Patent Application No. 200 3-1 0 3 2 50 filed with the Japan Patent Office on April 7, 2003. The entire disclosure of this application is incorporated into this reference by reference. In 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 the A portion of the foregoing packaging container body, and 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 as another embodiment, FIG. 3 (B) is a plan view thereof, and FIG. 3 (C) is a front view thereof. FIG. 4 (A) (B) is an enlarged view of the main part of a packaging container that is also used in other embodiments. Fig. 4 (A) is a diagrammatic view thereof, and Fig. 4 (B) is a front view thereof. Fig. 5 is a diagrammatic top view of the container body or container lid. Figure 6 is used to illustrate the perimeter of the undulating shape. Figure 6 is a schematic plan view of the packaging container connecting the container body and the lid to illustrate the location of the perimeter of the undulated shape. Figure 7 (A), (B) (A), (B) are examples of the shape of the container body, showing the position where the undulating shape should be implemented. Figure 8 (A), (B) are examples of the shape of the container cover, showing 12 2328 312 / Invention Specification (Supplement) Pieces) / 92-10 / 92121130 200402386 position of the undulating shape Fig. 9 is a perspective view showing an example of a mold for forming a plate. Fig. 10 is a front view showing a cutting state by a Thompson blade. (Element symbol description) C Thompson blade d wave crest difference ρ pitch P1 forming Repair mold T1 outer periphery T2 outer periphery T3 outer periphery T4 outer periphery T5 opening periphery W undulating shape I packaging container (container body) 10 peripheral side frame II flange 11a outer periphery 12 small protrusion 1 3 small depression 15 operation Ear 16 Connection 13 312 / Invention Manual (Supplement) / 92-10 / 92121130 200402386 18 Packaging container (lid) 2 0 Base plate /
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