TW201917067A - Can container - Google Patents
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- TW201917067A TW201917067A TW107137328A TW107137328A TW201917067A TW 201917067 A TW201917067 A TW 201917067A TW 107137328 A TW107137328 A TW 107137328A TW 107137328 A TW107137328 A TW 107137328A TW 201917067 A TW201917067 A TW 201917067A
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Classifications
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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
- 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
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
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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
- 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
- B65D1/12—Cans, casks, barrels, or drums
- B65D1/14—Cans, casks, barrels, or drums characterised by shape
- B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
本發明係有關一種罐身與罐底一體成形之罐容器。The present invention relates to a can container integrally formed with a can body and a can bottom.
已知瓶罐和其他形態的罐容器係具備易龜裂部或易破裂部，該易龜裂部或易破裂部在罐內壓異常上升時，在安全狀態下使罐底等產生龜裂和破裂而向外排放罐內壓。It is known that the cans and other types of can containers have a crack-prone portion or a fragile portion, and the crack-prone portion or the easily-breakable portion causes cracks in the bottom of the can and the like in a safe state when the pressure inside the can is abnormally increased. Burst and discharge the pressure inside the tank.
在下述專利文獻1中記載之習知技術中，在一種能夠藉由安裝蓋子來進行再封的瓶罐中，藉由在罐底部形成易龜裂部來應對因異常的罐內壓導致蓋子越過螺紋而從金屬口部脫離之問題。In the conventional technique described in the following Patent Document 1, in a bottle can which can be resealed by attaching a lid, by forming a crack-prone portion at the bottom of the can, the cover is overwhelmed by the abnormal can pressure. The problem of the thread being detached from the metal mouth.
又，下述專利文獻2中記載之習知技術如下：一種罐容器，在其中形成有：環狀接地部，形成於罐容器的下端；及圓頂部，外周緣部與該環狀接地部連接並且從環狀接地部的內周面向罐容器的內側凹陷而使得縱截面呈圓弧狀，在該罐容器中設置有因罐容器的內壓異常上升而使得圓頂部向罐容器的外側突出變形時破裂之易破裂部。 [先前技術文獻] [專利文獻]Moreover, the conventional technique described in the following Patent Document 2 is as follows: a can container having an annular land portion formed at a lower end of the can container; and a dome portion, the outer peripheral edge portion being connected to the annular land portion And the inner circumferential surface of the annular land portion is recessed toward the inner side of the can container so that the longitudinal section thereof has an arc shape, and the can container is provided with an abnormal rise in the inner pressure of the can container so that the dome portion protrudes outwardly toward the outer side of the can container. The rupture of the rupture. [Prior Technical Literature] [Patent Literature]
專利文獻1：日本專利公開2004-217305號公報 專利文獻2：日本專利公開2006-51964號公報Patent Document 1: Japanese Patent Publication No. 2004-217305. Patent Document 2: Japanese Patent Publication No. 2006-51964
[發明所欲解決之問題][The problem that the invention wants to solve]
前述之習知技術在罐容器內的壓力異常上升時，均利用易龜裂部或易破裂部來實現內壓開放，藉此避免罐容器本身的破裂和蓋子的噴飛等。In the conventional technique described above, when the pressure in the canister is abnormally increased, the internal pressure is opened by the easy-to-crack portion or the easily rupturable portion, thereby preventing the crack of the can itself and the spray of the cover.
能夠以蓋子的安裝來進行再封的瓶罐等，有時在先開封後雜菌等進入罐容器內之狀態下被再封，並以此狀態長期保存，並且有時因內容物的腐爛等而致使罐內壓異常上升。又，即使是除了瓶罐以外的二片罐，在保存管理狀態不良的情況下等，有時因內容物的腐爛等而致使罐內壓異常上升。A can, which can be resealed by the attachment of the lid, may be resealed in a state in which the bacteria or the like enters the can container after the first opening, and may be stored for a long period of time in this state, and sometimes due to the rot of the contents, etc. As a result, the pressure inside the tank rises abnormally. In addition, even if the two-piece can other than the bottle can be in a state in which the storage management state is poor, the inner pressure of the can is abnormally increased due to the rot of the contents.
關於如前述之習知技術般設置有易龜裂部或易破裂部之罐容器，為了避免內容物的洩漏而要求，在通常的保存管理中有可能發生之罐內壓的上升或運輸時的掉落/傾倒等衝擊下不會開放龜裂部和易破裂部。然而，若將易龜裂部和易破裂部的耐壓條件和抗衝擊條件設定得高，則在如前述的罐內壓異常上升時，易龜裂部和易破裂部亦不會開放，而產生無法避免如罐容器破裂和蓋子噴飛等危險事故之問題。 [解決問題之技術手段]In the case of a can container having a crack-prone portion or a frangible portion as in the prior art, in order to avoid leakage of contents, it is possible to increase the internal pressure of the can or the transportation during the normal storage management. The crack and the easily broken portion are not opened under impact such as dropping/dumping. However, if the pressure-resistant condition and the impact-resistant condition of the easy-to-crack portion and the easily-breakable portion are set to be high, the cracking portion and the easily-breakable portion are not opened when the tank internal pressure is abnormally increased as described above. There is a problem that dangerous accidents such as cracking of the can container and spraying of the cover cannot be avoided. [Technical means to solve the problem]
本發明係為了應對這種情況而完成，其課題為在罐內壓異常上升時使開放罐內壓之易龜裂部適當地發揮功能。The present invention has been made in order to cope with such a situation, and the problem is that the crack-prone portion that opens the inner pressure of the can appropriately functions when the tank internal pressure rises abnormally.
為了解決這種課題，本發明的罐容器係具備以下構成。 一種罐容器，其由軋製方向確定之板材一體成形圓筒狀的罐身及與該罐身相連之罐底，該罐容器的特徵為，在前述罐底，凸狀的環狀圓緣繞罐軸而設置於內側，依照相對於前述軋製方向而定向之罐內壓異常上升時的罐底變形模式設置有因該罐底變形模式而產生龜裂之易龜裂部。 [發明效果]In order to solve such a problem, the can container of the present invention has the following configuration. A can container having a cylindrical body integrally formed by a rolling direction and a can bottom connected to the can body, the can container being characterized by a convex annular rounded edge at the bottom of the can The can shaft is provided on the inner side, and a crackable portion which is cracked by the can bottom deformation mode is provided in the tank bottom deformation mode when the tank internal pressure is abnormally increased in accordance with the rolling direction. [Effect of the invention]
具有這種特徵之本發明的罐容器中，藉由依照相對於軋製方向而定向之罐內壓異常上升時的罐底變形模式而設置僅由罐底變形模式而產生龜裂之易龜裂部，從而能夠在罐內壓力異常上升時有效地使易龜裂部龜裂來向外排出罐內壓力。In the can container of the present invention having such a feature, it is easy to crack by cracking only by the deformation mode of the can bottom by the deformation mode of the can bottom when the internal pressure of the can is oriented abnormally with respect to the rolling direction. Therefore, it is possible to effectively crack the crackable portion and discharge the pressure in the tank outward when the pressure inside the tank rises abnormally.
藉此，能夠設為在通常的保存管理中有可能發生之罐內壓的上升或運輸時的掉落/傾倒等衝擊下不會產生龜裂之易龜裂部，且能夠抑制通常情況下的內容物的洩漏，並且藉由在罐內壓力異常上升時使易龜裂部可靠地開放，能夠避免如罐容器破裂和蓋子噴飛等危險的事故。In this way, it is possible to prevent the cracking portion which does not cause cracks due to an increase in the internal pressure of the tank which may occur during normal storage management or a drop/dump during transportation, and it is possible to suppress the normal cracking. The leakage of the contents and the easy cracking of the cracks when the pressure in the tank rises abnormally can avoid dangerous accidents such as the collapse of the can container and the spray of the lid.
以下，參閱圖式對本發明的實施形態進行說明。以下說明中，不同圖中之相同符號表示相同功能的部位，各圖中之重複說明則適當省略。Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in the different drawings denote the same functions, and the repeated description in the respective drawings is omitted as appropriate.
第1圖係表示本發明的實施形態之罐容器的一例之帶蓋瓶罐。該罐容器（帶蓋瓶罐）1藉由蓋子3螺裝於瓶罐2的金屬口部20來密封內容物。Fig. 1 is a view showing a cap bottle which is an example of a can container according to an embodiment of the present invention. The can container (capped can) 1 is sealed by the cap 3 screwed to the metal mouth portion 20 of the can 2 to seal the contents.
瓶罐2為相對於罐軸O軸對稱的容器，圓筒狀的罐身2A及與該罐身2A相連之罐底2B一體成形，在罐身2A的上方設置有隨著朝向上方而逐漸縮徑之肩部2C，在肩部2C的上方設置有前述之金屬口部20。The bottle can 2 is a container that is symmetrical with respect to the axis of the can, and the cylindrical can body 2A and the can bottom 2B connected to the can body 2A are integrally formed, and are disposed above the can body 2A as they are gradually tapered upward. The shoulder portion 2C of the diameter is provided with the metal mouth portion 20 described above above the shoulder portion 2C.
這種瓶罐2係由沿確定方向軋製之板材一體成形，為鋁製瓶罐時，藉由在沖壓成圓形之板材上進行淺拉伸加工來成形出成為坯料之杯體，對杯體進行拉伸並實施引縮加工，從而成形出圓筒狀的本體部，藉由上部的切邊和複數個縮頸加工來成形肩部2C和金屬口部20。The bottle can 2 is integrally formed by a plate rolled in a certain direction. When the bottle is made of aluminum, the cup is formed into a blank by performing a shallow drawing process on a plate which is rolled into a circular shape. The body is stretched and subjected to a sizing process to form a cylindrical body portion, and the shoulder portion 2C and the metal mouth portion 20 are formed by the upper trimming and a plurality of necking processes.
金屬口部20具備：螺紋部（外螺紋）21，被螺裝有蓋子3；結合部22，被形成於螺紋部21的下方；及捲曲部23，被形成於金屬口部20的上端部。The metal mouth portion 20 includes a screw portion (outer thread) 21 to which the cover 3 is screwed, a joint portion 22 formed below the screw portion 21, and a curl portion 23 formed at an upper end portion of the metal mouth portion 20.
蓋子3具備頂面部30、從頂面部30的外周緣至下方連續設置之周壁部31，在周壁部31設置有與金屬口部20的螺紋部（外螺紋）21螺合之螺紋部（內螺紋）32及形成於螺紋部32的下方之易破裂部33。易破裂部33中沿周壁部31的厚度方向貫穿之刻痕33a沿周向隔著規定間隔而形成有複數個，在相鄰之刻痕33a之間形成有橋接件33b。The cover 3 includes a top surface portion 30, a peripheral wall portion 31 continuously provided from the outer peripheral edge of the top surface portion 30 to the lower side, and a screw portion (internal thread) that is screwed to the screw portion (outer thread) 21 of the metal mouth portion 20 is provided in the peripheral wall portion 31. 32) and a frangible portion 33 formed below the threaded portion 32. A plurality of scores 33a penetrating in the thickness direction of the peripheral wall portion 31 in the easy-to-break portion 33 are formed at a predetermined interval in the circumferential direction, and a bridge 33b is formed between the adjacent scores 33a.
在蓋子3的頂面部30的內表面配設有由合成樹脂形成之襯料34。利用蓋子3來密封金屬口部20時，在襯料34緊貼於金屬口部20的捲曲部23之狀態下，周壁部31的下端部擰緊於結合部22，且蓋子3的螺紋部32螺裝於金屬口部20的螺紋部21。A lining 34 formed of a synthetic resin is disposed on the inner surface of the top surface portion 30 of the cover 3. When the metal mouth portion 20 is sealed by the cover 3, the lower end portion of the peripheral wall portion 31 is screwed to the joint portion 22 in a state where the gusset 34 is in close contact with the curl portion 23 of the metal mouth portion 20, and the thread portion 32 of the cover 3 is screwed. The threaded portion 21 is attached to the metal mouth portion 20.
如第2圖所示，凸狀的環狀圓緣10繞罐軸O設置於瓶罐2的罐底2B的內側。圖示的罐底2B在環狀圓緣10的外側形成有朝向下方成為凸狀之環狀的接地部11，在環狀圓緣10的內側設置有與罐軸O垂直的平板部12。As shown in Fig. 2, a convex annular bead 10 is provided around the can axis O inside the can bottom 2B of the bottle can 2. In the tank bottom 2B shown in the figure, a ring-shaped land portion 11 that is convex downward is formed on the outer side of the annular bead 10, and a flat plate portion 12 that is perpendicular to the can axis O is provided inside the annular bead 10.
在這種罐容器（帶蓋瓶罐）1中確認到，當產生比在蓋子3的螺紋部32螺裝於金屬口部20的螺紋部21之狀態下獲得之蓋子保持力大的罐內壓異常上升時，會產生由設置於罐底2B之環狀圓緣10及其周邊局部地向外側突出之所謂被稱為屈曲變形之特殊的變形態樣，並確認到該特殊的變形態樣（以下，稱為罐底變形模式）相對於成形出瓶罐2之板材的軋製方向具有一定的方向性。In the can container (capped can) 1, it was confirmed that the inner pressure of the cap which is larger than the screw portion 21 which is screwed to the threaded portion 21 of the metal mouth portion 20 is generated. When it rises abnormally, a special deformation pattern called buckling deformation which is partially protruded outward from the annular bead 10 provided at the bottom of the can 2B and its periphery is generated, and the special modification is confirmed ( Hereinafter, it is referred to as a tank bottom deformation mode) and has a certain directivity with respect to the rolling direction of the sheet material on which the cans 2 are formed.
前述的罐底變形模式依據罐底面積和環狀圓緣的形態（深度和直徑等）或板材的材質等而顯示出不同的態樣，但在以相同的設計條件成形之瓶罐2中為大致相同的變形態樣。The above-described deformation mode of the can bottom shows different aspects depending on the area of the bottom of the can and the shape of the annular bead (depth and diameter, etc.) or the material of the plate, etc., but in the bottle 2 formed under the same design conditions, Roughly the same variant.
若例示出罐底變形模式的方向性與板材的軋製方向的關係，則能夠將相對於軋製方向繞罐軸O為90°及270°的方向（與軋製方向正交之方向）作為一個罐底變形模式，並將相對於軋製方向繞罐軸O為0°及180°的方向（與軋製方向相同的方向）作為另一個罐底變形模式。這種罐底變形模式能夠將其中一個作為1次罐底變形模式，將另一個作為2次罐底變形模式。When the relationship between the directivity of the deformation mode of the can bottom and the rolling direction of the sheet material is exemplified, the direction in which the can axis O is 90° and 270° with respect to the rolling direction (the direction orthogonal to the rolling direction) can be regarded as A tank bottom deformation mode, and a direction of 0° and 180° around the can axis O with respect to the rolling direction (the same direction as the rolling direction) is taken as another tank bottom deformation mode. This tank bottom deformation mode can take one of them as the primary tank bottom deformation mode and the other as the secondary tank bottom deformation mode.
在1次罐底變形模式和2次罐底變形模式下，產生了罐內壓異常上升之情況下，會在形成於罐底2B之環狀圓緣10及其周邊產生沿前述之方向之線狀的屈曲變形。在1次罐底變形模式和2次罐底變形模式下產生之屈曲變形有時在罐軸O的兩側同時產生，而在罐軸O的兩側產生之變形有時亦會在不同的時間產生。In the case of the first tank bottom deformation mode and the secondary tank bottom deformation mode, when the tank internal pressure is abnormally increased, a line along the aforementioned direction is formed in the annular bead 10 formed at the tank bottom 2B and its periphery. Bending deformation. The buckling deformation generated in the one-bottom deformation mode and the second-stage deformation mode is sometimes generated simultaneously on both sides of the can axis O, and the deformation generated on both sides of the can axis O sometimes occurs at different times. produce.
又，1次罐底變形模式和2次罐底變形模式的時間為，罐內壓上升而產生1次罐底變形模式的變形之後，若罐內壓的上升進一步持續，則會產生2次罐底變形模式的變形。In addition, the time of the first tank bottom deformation mode and the secondary tank bottom deformation mode is such that after the tank internal pressure rises and the tank bottom deformation mode is deformed once, if the tank internal pressure rises further, the second tank is generated. Deformation of the bottom deformation mode.
本發明的實施形態著眼於罐內壓異常上升時產生之罐底變形模式，藉由設置因該罐底變形模式而促使開放（發生龜裂）之易龜裂部，從而在罐內壓異常上升時使開放罐內壓之易龜裂部適當地發揮功能。關於一個瓶罐2中之罐底變形模式的方向性，對以相同的設計條件成形之瓶罐施加罐內壓力的異常上升，由此能夠實驗性地進行確認。According to the embodiment of the present invention, the tank bottom deformation mode which occurs when the tank internal pressure rises abnormally is increased, and the cracking portion which is opened (cracking) due to the tank bottom deformation mode is provided, so that the tank internal pressure rises abnormally. At this time, the cracking portion of the open can pressure is appropriately functioned. The directionality of the deformation mode of the can bottom in one of the cans 2 can be experimentally confirmed by applying an abnormal rise in the pressure in the can to the can formed by the same design conditions.
第3圖～第6圖表示設置於罐底之易龜裂部的形成例。圖示的箭頭R表示成形為瓶罐2之板材的軋製方向。第3圖及第4圖所示之例中，相對於軋製方向（箭頭R方向），1次罐底變形模式的方向性為繞罐軸O為90°及270°的方向（圖示箭頭S1方向），2次罐底變形模式的方向性為繞罐軸O為0°及180°的方向（圖示箭頭S2方向）之情況。Fig. 3 to Fig. 6 show examples of formation of an easily cracked portion provided at the bottom of the can. The arrow R shown in the figure indicates the rolling direction of the sheet formed into the can 2 . In the examples shown in Figs. 3 and 4, the directivity of the primary bottom deformation mode with respect to the rolling direction (arrow R direction) is a direction of 90° and 270° around the can axis O (the arrow shown) In the S1 direction), the directivity of the secondary bottom deformation mode is the case where the can axis O is 0° and 180° (the direction of the arrow S2 is shown).
第3圖所示之例中，沿相對於軋製方向（箭頭R方向）繞罐軸O成90°及270°（圖示箭頭S1方向）的方向設置有易龜裂部4。易龜裂部4能夠藉由刮痕加工、壓印加工、凸起加工、薄壁加工等形成為線狀，其截面形狀只要係因罐底變形模式的產生而容易產生龜裂，則可以是任意形狀。作為截面形狀的一例，能夠設為如第7圖（a）所示之V槽狀或如第7圖（b）所示之U槽或矩形槽狀。此時，槽可以在罐的外表面側和內表面側中的任意一處形成，又，亦可以在其兩者形成。In the example shown in Fig. 3, the crackable portion 4 is provided in a direction of 90° and 270° (in the direction of the arrow S1 in the drawing) about the can axis O with respect to the rolling direction (arrow R direction). The easy-to-crack portion 4 can be formed into a linear shape by scratch processing, imprint processing, convex processing, thin-wall processing, or the like, and the cross-sectional shape thereof is likely to be cracked due to the deformation mode of the can bottom. Arbitrary shape. An example of the cross-sectional shape can be a V-groove as shown in Fig. 7(a) or a U-groove or a rectangular groove as shown in Fig. 7(b). At this time, the groove may be formed at any one of the outer surface side and the inner surface side of the can, or may be formed in both of them.
圖示的例中，易龜裂部4相對於罐軸O對稱設置有兩個，但亦可以是其中的任一個。易龜裂部4的形成位置在圖示的例中以橫切環狀圓緣10的最深部之方式形成。環狀圓緣10的最深部在罐底變形模式下為變形量最大的部分，因此藉由以橫切該部分之方式設置易龜裂部4，能夠在罐底變形模式下使易龜裂部4可靠地開放（破裂）。此時的易龜裂部4的長度只要橫穿環狀圓緣10的最深部，則其長度並無特別限定，設定為從最深部的中心起內外約為1～3mm左右（全長2～6mm左右）為較佳。In the illustrated example, the easy cracking portion 4 is provided symmetrically with respect to the can axis O, but it may be any one of them. The formation position of the easy-to-crack portion 4 is formed so as to cross the deepest portion of the annular bead 10 in the illustrated example. The deepest portion of the annular bead 10 is the portion having the largest amount of deformation in the can bottom deformation mode. Therefore, by providing the easy-to-crack portion 4 so as to cross the portion, the crackable portion can be made in the can bottom deformation mode. 4 reliably open (broken). The length of the easy-to-crack portion 4 at this time is not particularly limited as long as it traverses the deepest portion of the annular bead 10, and is set to be about 1 to 3 mm from the center of the deepest portion (2 to 6 mm in total length). Left and right) is preferred.
又，圖示的例中，易龜裂部4相對於罐軸O形成為放射狀。若如此將易龜裂部4形成為放射狀，則對於板材或在板材上進行淺拉伸加工而成形之杯體，在形成易龜裂部4之後進行基於瓶罐2的拉伸與引縮之成形加工時，能夠抑制因成形時的歪斜而致使易龜裂部4破損。易龜裂部4亦可以在瓶罐2的成形加工後的階段形成，但藉由在成形加工前的板材的階段或與杯體成形同時或杯體成形後形成易龜裂部4，易於進行相對於板材的軋製方向之定位。Further, in the illustrated example, the easy-to-crack portion 4 is formed radially with respect to the can axis O. When the easy-to-crack portion 4 is formed in a radial shape, the cup formed by the shallow drawing process on the sheet material or the sheet material is subjected to stretching and shrinkage based on the can 2 after the easy-to-crack portion 4 is formed. At the time of forming, it is possible to suppress breakage of the easily cracked portion 4 due to skew during molding. The easy-to-crack portion 4 can also be formed at the stage after the forming process of the bottle can 2, but it is easy to carry out by forming the easy-to-crack portion 4 at the stage of the sheet material before the forming process or at the same time as the cup body forming or the cup body forming. Positioning relative to the rolling direction of the sheet.
第4圖所示之例中，沿相對於軋製方向（箭頭R方向）繞罐軸O成0°或180°的方向（圖示箭頭S2方向）設置有易龜裂部4。該例中，藉由依照2次罐底變形模式設置易龜裂部4，在罐內壓力比較低的1次罐底變形模式下能夠避免內容物的洩漏，在罐內壓即將達到危險的壓力狀態之前的2次罐底變形模式下，能夠開放易龜裂部4。在該例中，亦如第3圖所示之例般同樣地，相對於罐軸O對稱地設置兩個易龜裂部4，但亦可以是其中的任一個。In the example shown in Fig. 4, the easy-to-crack portion 4 is provided in a direction (in the direction of the arrow S2 in the figure) in which the can axis O is formed at 0 or 180 with respect to the rolling direction (arrow R direction). In this example, by providing the easy-to-crack portion 4 in accordance with the secondary tank bottom deformation mode, leakage of contents can be avoided in the one-bottom deformation mode in which the pressure in the tank is relatively low, and the pressure in the tank is about to reach dangerous pressure. In the second tank bottom deformation mode before the state, the easy cracking portion 4 can be opened. In this example, as in the example shown in FIG. 3, two easy cracking portions 4 are provided symmetrically with respect to the can axis O, but any of them may be used.
第5圖及第6圖所示之例係相對於軋製方向（箭頭R方向），1次罐底變形模式的方向性為繞罐軸O為45°及225°的方向（圖示箭頭S3方向），2次罐底變形模式的方向性為繞罐軸O為135°及315°的方向（圖示箭頭S4方向）之情況。第5圖所示之例中，沿1次罐底變形模式的方向（圖示箭頭S3方向）設置有易龜裂部4。又，第6圖所示之例中，沿2次罐底變形模式的方向（圖示箭頭S4方向）設置有易龜裂部4。如此，當確認到罐底變形模式的方向性為規定的方向時，能夠沿該方向適當地設置易龜裂部4。The examples shown in Figs. 5 and 6 are relative to the rolling direction (arrow R direction), and the directivity of the first tank bottom deformation mode is 45° and 225° around the can axis O (the arrow S3 is shown). Direction) The directivity of the secondary bottom deformation mode is the direction of the can axis O of 135° and 315° (the direction of the arrow S4 is shown). In the example shown in Fig. 5, the easy-to-crack portion 4 is provided in the direction of the first tank bottom deformation mode (the direction of the arrow S3 in the figure). Further, in the example shown in Fig. 6, the easy-to-crack portion 4 is provided in the direction of the secondary tank bottom deformation mode (the direction of the arrow S4 in the figure). As described above, when it is confirmed that the directivity of the can bottom deformation mode is a predetermined direction, the easy-to-crack portion 4 can be appropriately provided in this direction.
如以上說明，本發明的實施形態之罐容器1著眼於相對於軋製方向（圖示箭頭R）而定向之罐內壓異常上升時的罐底變形模式，並依照該罐底變形模式設置有易龜裂部4，因此能夠僅在罐內壓力異常上升時有效地使易龜裂部4破裂來將罐內壓力排放到外部。As described above, the tank container 1 according to the embodiment of the present invention focuses on the tank bottom deformation mode when the tank internal pressure is abnormally increased with respect to the rolling direction (arrow R), and is provided in accordance with the tank bottom deformation mode. Since the crack portion 4 is easily formed, the crackable portion 4 can be effectively broken only when the pressure inside the tank rises abnormally, and the pressure inside the tank can be discharged to the outside.
此時的易龜裂部4的破裂強度能夠設定為，在通常的保存管理中有可能發生之罐內壓的上升或運輸時的掉落/傾倒等衝擊下不會產生龜裂的程度，藉此能夠抑制一般情況下的內容物的洩漏。而且，在罐內壓力異常上升時，能夠利用罐底變形模式來可靠地開放易龜裂部，因此能夠預防如罐容器的破裂和蓋子噴飛等危險事故的發生。The rupture strength of the easy-to-crack portion 4 at this time can be set to such an extent that the internal pressure of the tank which may occur during normal storage management or the impact of falling/dumping during transportation does not cause cracking. This can suppress leakage of contents under normal conditions. Further, when the pressure in the tank is abnormally increased, the crackable portion can be reliably opened by the tank bottom deformation mode, and thus it is possible to prevent the occurrence of a dangerous accident such as cracking of the tank container and spray spraying of the lid.
以上，參閱圖式對本發明的實施形態進行了詳述，但具體的構成並不限定於該等實施形態，在不脫離本發明的宗旨的範圍內進行設計變更等亦屬於本發明。尤其，作為實施形態以帶蓋瓶罐為例進行了說明，但本發明的實施形態之罐容器並不限定於此，即使是罐身和罐底一體成形之二片罐等中，亦同樣能夠設置有易龜裂部。The embodiments of the present invention have been described in detail above with reference to the drawings. However, the specific configuration is not limited to the embodiments, and the present invention may be made without departing from the scope of the invention. In particular, although the cap bottle can be described as an example in the embodiment, the can container according to the embodiment of the present invention is not limited thereto, and even in the case of a two-piece can in which the can body and the can bottom are integrally formed, Set with easy cracks.
又，上述各實施形態，只要在其目的及構成等上不存在特別的矛盾或問題，則能夠沿用彼此的技術進行組合。具體而言，能夠沿第3圖～第6圖所示之箭頭S1～S4的所有方向設置易龜裂部4，又，能夠沿從箭頭S1～S4的方向中任意選擇之方向，將易龜裂部4設置於其中的至少1處。Further, in the above embodiments, as long as there is no particular contradiction or problem in terms of purpose, configuration, and the like, it is possible to combine the techniques of each other. Specifically, the easy-to-crack portion 4 can be provided in all directions of the arrows S1 to S4 shown in FIGS. 3 to 6 , and the turtle can be easily selected in the direction from the directions of the arrows S1 to S4. The split 4 is provided at at least one of them.
1‧‧‧罐容器1‧‧‧ can container
2‧‧‧瓶罐2‧‧‧ Bottles
2A‧‧‧罐身2A‧‧‧ can body
2B‧‧‧罐底2B‧‧‧ can bottom
2C‧‧‧肩部2C‧‧‧Shoulder
20‧‧‧金屬口部20‧‧‧Metal mouth
21‧‧‧螺紋部21‧‧‧Threading Department
22‧‧‧結合部22‧‧‧Combination Department
23‧‧‧捲曲部23‧‧‧ Curling Department
3‧‧‧蓋子3‧‧‧ cover
30‧‧‧頂面部30‧‧‧ top face
31‧‧‧周壁部31‧‧‧Walls
32‧‧‧螺紋部32‧‧‧Threaded Department
33‧‧‧易破裂部33‧‧‧Fracture
33a‧‧‧刻痕33a‧‧‧ Scotch
33b‧‧‧橋接件33b‧‧‧Bridges
4‧‧‧易龜裂部4‧‧‧Easy cracking
O‧‧‧罐軸O‧‧‧ can shaft
第1圖係表示本發明的實施形態之罐容器的一例之帶蓋瓶罐之說明圖。 第2圖係表示本發明的實施形態之罐容器的罐底之說明圖（剖面圖）。 第3圖係表示設置於罐底之易龜裂部的形成例（沿與軋製方向成90°或270°的方向設置有易龜裂部之例）之說明圖。 第4圖係表示設置於罐底之易龜裂部的形成例（沿與軋製方向成0°或180°的方向設置有易龜裂部之例）之說明圖。 第5圖係表示設置於罐底之易龜裂部的形成例（沿與軋製方向成45°或225°的方向設置有易龜裂部之例）之說明圖。 第6圖係表示設置於罐底之易龜裂部的形成例（沿與軋製方向成135°或315°的方向設置有易龜裂部之例）之說明圖。 第7圖係表示易龜裂部的剖面形狀的例（第7圖（a）為V槽狀的例，第7圖（b）為U槽或矩形槽狀的例）之說明圖。Fig. 1 is an explanatory view showing a cap bottle which is an example of a can container according to an embodiment of the present invention. Fig. 2 is an explanatory view (cross-sectional view) showing a can bottom of a can container according to an embodiment of the present invention. Fig. 3 is an explanatory view showing an example of formation of an easy-to-crack portion provided in the bottom of the can (an example in which a crack-prone portion is provided in a direction of 90 or 270° in the rolling direction). Fig. 4 is an explanatory view showing an example of formation of an easy-to-crack portion provided in the bottom of the can (an example in which a crack-prone portion is provided in a direction of 0 or 180 in the rolling direction). Fig. 5 is an explanatory view showing an example of formation of an easy-to-crack portion provided in the bottom of the can (an example in which a crack-prone portion is provided in a direction of 45° or 225° in the rolling direction). Fig. 6 is an explanatory view showing an example of formation of an easy-to-crack portion provided in the bottom of the can (an example in which a crack-prone portion is provided in a direction of 135 or 315° in the rolling direction). Fig. 7 is an explanatory view showing an example of a cross-sectional shape of a crack-prone portion (Fig. 7(a) shows an example of a V-groove, and Fig. 7(b) shows an example of a U-groove or a rectangular groove).
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017209266A JP7238254B2 (en) | 2017-10-30 | 2017-10-30 | can container |
| JP2017-209266 | 2017-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201917067A true TW201917067A (en) | 2019-05-01 |
Family
ID=66331558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107137328A TW201917067A (en) | 2017-10-30 | 2018-10-23 | Can container |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7238254B2 (en) |
| TW (1) | TW201917067A (en) |
| WO (1) | WO2019087523A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI784675B (en) * | 2020-09-10 | 2022-11-21 | 日商東洋製罐股份有限公司 | The preform of a can and manufacturing method for the same |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325186A (en) * | 1976-08-20 | 1978-03-08 | Daiwa Can Co Ltd | Metallic can for drink containing carbon dioxide or the like |
| JPH089032Y2 (en) * | 1990-07-04 | 1996-03-13 | 誠一 北林 | Aerosol spray container |
| JPH0798234B2 (en) * | 1991-09-10 | 1995-10-25 | 東洋製罐株式会社 | Easy opening can lid |
| JP4666330B2 (en) * | 2001-04-19 | 2011-04-06 | 大和製罐株式会社 | Can lid for positive pressure can |
| JP2004115096A (en) * | 2002-09-27 | 2004-04-15 | Mitsubishi Materials Corp | Bottle can and bottle can with cap |
| JP4404243B2 (en) * | 2003-02-10 | 2010-01-27 | 大和製罐株式会社 | Can lid |
| JP4781646B2 (en) * | 2004-08-10 | 2011-09-28 | 大和製罐株式会社 | Can container |
| JP2011184053A (en) * | 2010-03-05 | 2011-09-22 | Toyo Seikan Kaisha Ltd | Can lid |
| TWI537512B (en) * | 2010-06-07 | 2016-06-11 | 大陸製罐股份有限公司 | Portable high pressure gas container |
| JP4877538B2 (en) * | 2010-06-08 | 2012-02-15 | 東洋製罐株式会社 | Seamless can body |
-
2017
- 2017-10-30 JP JP2017209266A patent/JP7238254B2/en active Active
-
2018
- 2018-08-15 WO PCT/JP2018/030377 patent/WO2019087523A1/en active Application Filing
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI784675B (en) * | 2020-09-10 | 2022-11-21 | 日商東洋製罐股份有限公司 | The preform of a can and manufacturing method for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019087523A1 (en) | 2019-05-09 |
| JP2019081566A (en) | 2019-05-30 |
| JP7238254B2 (en) | 2023-03-14 |
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