TWI786453B - Bottles and Bottle Containers - Google Patents

Bottles and Bottle Containers Download PDF

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Publication number
TWI786453B
TWI786453B TW109136786A TW109136786A TWI786453B TW I786453 B TWI786453 B TW I786453B TW 109136786 A TW109136786 A TW 109136786A TW 109136786 A TW109136786 A TW 109136786A TW I786453 B TWI786453 B TW I786453B
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Prior art keywords
bottle
mouth
outer diameter
mentioned
locking
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TW109136786A
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Chinese (zh)
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TW202126544A (en
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村瀬健
長谷川俊幸
田中章太
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日商東洋製罐股份有限公司
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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
    • 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
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/46—Local reinforcements, e.g. adjacent closures
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Closures For Containers (AREA)

Abstract

本發明之課題在於，提供一種瓶罐及瓶容器，其即使於嘗試將用以形成瓶罐之原板予以薄壁化之情況下，也可抑制封蓋步驟中之口部的變形，並可防止橋接斷裂及填充的內容物之洩漏等封蓋不良之產生。 本發明之瓶罐100係於上部具有口部101之有底筒形的瓶罐；其特徵在於：上述口部具有螺旋接著有螺旋蓋150之螺紋部110、及於螺紋部之下方供上述螺旋蓋之下襬部153卡止的環狀之卡止部120，且當將上述瓶罐的口部之口徑設為A(mm)，將用以形成上述瓶罐的原板之板厚設為B(mm)，將上述卡止部的最大外徑與最小外徑之半徑差(卷邊深度)設為C(mm)時，其滿足

Figure 109136786-A0101-11-0001-1
。The object of the present invention is to provide a bottle can and a bottle container which can suppress the deformation of the mouth portion in the capping step and prevent bridge fracture even when an attempt is made to thin the original plate used to form the bottle and can And the leakage of the filled content and other poor sealing. The bottle can 100 of the present invention is a bottomed cylindrical bottle can with a mouth 101 on the top; it is characterized in that: the mouth has a threaded portion 110 that is screwed with a screw cap 150, and the screw cap 150 is provided below the threaded portion. The ring-shaped locking part 120 that is locked by the hem part 153 of the lid, and when the diameter of the mouth of the above-mentioned bottle and can is set as A (mm), the plate thickness of the original plate used to form the above-mentioned bottle and can is set as B ( mm), when the radius difference (curling depth) between the maximum outer diameter and the minimum outer diameter of the above locking part is C (mm), it satisfies
Figure 109136786-A0101-11-0001-1
.

Description

瓶罐及瓶容器Bottles and Bottle Containers

本發明係關於一種瓶罐及瓶容器，其於口部具有卡止部，該卡止部係用以將螺旋蓋之下襬部卡止於螺紋部之下方。The invention relates to a bottle can and a bottle container, which has a locking part at the mouth, and the locking part is used to lock the hem part of the screw cap under the threaded part.

作為飲料用容器而使用之金屬製的瓶罐係以一種瓶容器而普及，該瓶罐具有罐身及罐底，於罐身之開口部具有較罐身直徑小之口部，於口部成型有螺紋部，且於該口部安裝有可再栓上之螺旋蓋。通常，此種之瓶罐係將包含鋁、鋁合金、鋼等之金屬材料之原板沖壓為圓形且對其進行拉深加工，而獲得有底圓筒形之杯成型體，再對其進行拉深．引縮加工(DI成型)而獲得有底圓筒形之罐體之後，於縮頸步驟中形成被縮徑為錐形之肩部及圓筒形之口部，然後進行包含螺紋加工等之口部之成型，藉此而製造。 Metal bottles and cans used as beverage containers are popular as a bottle container. The bottle and can have a body and a bottom. The opening of the body has a mouth with a smaller diameter than the body, and the mouth is formed. There is a threaded part, and a re-bolt screw cap is installed on the mouth. Usually, such bottles and cans are formed by stamping a metal material such as aluminum, aluminum alloy, steel, etc. into a circular shape and drawing it to obtain a bottomed cylindrical cup molding, which is then drawn. deep. After shrinking processing (DI molding) to obtain a bottomed cylindrical tank body, the tapered shoulder and cylindrical mouth are formed in the necking step, and then the mouth including thread processing, etc. The molding of the part is made by this.

如圖1所示，於此種之瓶罐之口部形成有具有公螺紋形狀之螺紋部110，且於螺紋部110之下方，遍及繞罐軸全周呈環狀地形成有卡止部120，該卡止部120具有朝徑向外側鼓起之裙部130。卡止部120係對附設有橋接部之螺旋蓋(以下，簡稱為「罐蓋」)150之下襬部153進行滾轉成型之部分，且被設為於鼓起形狀之裙部130之下方具有朝徑向內側縮徑之卷邊部(bead)140而可將被朝徑向內側彎曲之罐蓋150之下襬部153卡止之形狀。於此種之瓶罐100中，當朝其內部填充完飲料等內容物之後，於封蓋步驟中將罐蓋150捲緊於口部101。具體而言，將有頂筒形之罐蓋150覆蓋於口部101上，且對該罐蓋150施加朝下方之負載以使瓶罐100內成為密封狀態，然後，一面維持該密封狀態，一面在與螺紋部110對應之高度位置上朝徑向內側將車螺紋滾輪壓抵在罐蓋150之周壁部152之上部並沿繞罐軸之圓周方向轉動，藉此於罐蓋150之周壁部152上成型與螺紋部110之公螺紋形狀配合之母螺紋形狀，並且，在與裙部130及卷邊部140對向之高度位置上一面藉由邊緣滾輪朝徑向內側對罐蓋150之周壁部152之下端施加負載一面沿繞罐軸之全周轉動而對罐蓋150之下襬部153進行滾轉成型，藉此，可將罐蓋150之下襬部153緊密地卡止於裙部130及卷邊部140(例如，參照專利文獻1)。 [先前技術文獻] [專利文獻] As shown in FIG. 1 , a threaded portion 110 having a male thread shape is formed at the mouth of such a bottle, and below the threaded portion 110, a locking portion 120 is formed annularly around the entire circumference of the jar axis. The locking portion 120 has a skirt portion 130 bulging radially outward. The locking part 120 is the part that roll-forms the hem part 153 of the screw cap (hereinafter referred to as "can cap") 150 with a bridging part, and is set under the bulging skirt part 130 It has a bead 140 that shrinks inward in the radial direction and can lock the hem portion 153 of the can lid 150 that is bent inward in the radial direction. In this kind of bottle can 100 , after the contents such as beverages are filled into the inside, the can lid 150 is rolled tightly around the mouth 101 in the capping step. Specifically, a cap 150 with a top cylindrical shape is covered on the mouth 101, and a downward load is applied to the cap 150 so that the inside of the bottle can 100 is in a sealed state. Then, while maintaining the sealed state, On the height position corresponding to the threaded part 110, the threading roller is pressed against the upper part of the peripheral wall part 152 of the tank cover 150 and rotated along the circumferential direction around the tank axis, thereby to the peripheral wall part 152 of the tank cover 150. The female thread shape matched with the male thread shape of the threaded part 110 is formed on the top, and at the height position opposite to the skirt part 130 and the curling part 140, one side faces the peripheral wall part of the can lid 150 radially inwardly by the edge roller. The lower end of the tank cover 152 is loaded and rotated along the full circle around the tank shaft to form the lower hem part 153 of the tank cover 150, whereby the lower hem part 153 of the tank cover 150 can be tightly locked on the skirt part 130 and the skirt part 130. The bead portion 140 (for example, refer to Patent Document 1). [Prior Art Literature] [Patent Document]

專利文獻1：日本專利特開2004-276990號公報Patent Document 1: Japanese Patent Laid-Open No. 2004-276990

(發明所欲解決之問題)(Problem to be solved by the invention)

另一方面，為了於瓶罐之製造時及運送時削減CO2 之排放量以減少環境負擔、及藉由削減金屬材料之使用量以求降低成本等之目的，鼓勵對此種之瓶罐實施輕量化。然而，為了實現瓶罐之輕量化，雖然可嘗試將用以形成瓶罐之原板予以薄壁化，但擔心伴隨輕量化(薄壁化)而會招致瓶罐之強度降低。具體而言，當沿卡止部120之外形而對罐蓋150之下襬部153進行滾轉成型時，由於2個邊緣滾輪相互對向且分別朝徑向內側施加負載，因此若瓶罐之口部之強度低，則有俯視時口部101自正圓變形為橢圓之程度變得更大之虞。若於口部101產生大的變形，則有產生如下問題之虞，即，由於罐蓋150之下襬部153伴隨口部101之變形而會朝徑向內側過度地變形，因而產生橋接斷裂，進而造成消費者不能正確地判斷有無開栓，或難以形成密封點且罐蓋之保持力不足，從而無法充分地密封而產生漏洩等之問題。On the other hand, in order to reduce CO2 emissions during the manufacture and transportation of bottles and cans to reduce environmental burdens, and to reduce costs by reducing the use of metal materials, the implementation of this type of bottles and cans is encouraged. lightweight. However, in order to reduce the weight of bottles and cans, it is possible to try to reduce the thickness of the original plate used to form the bottles and cans. However, there is a concern that the strength of the bottles and cans will decrease along with the reduction in weight (thin walls). Specifically, when rolling forming the hem portion 153 of the can lid 150 along the outer shape of the locking portion 120, since the two edge rollers face each other and respectively apply loads radially inward, if the bottle can If the strength of the mouth portion is low, the degree of deformation of the mouth portion 101 from a perfect circle to an ellipse may become larger in plan view. If a large deformation occurs at the mouth portion 101, there is a possibility that the hem portion 153 of the can lid 150 will be excessively deformed inward in the radial direction due to the deformation of the mouth portion 101, thereby causing a bridging fracture, thereby causing a problem. Cause consumers can not correctly judge whether to open the plug, or it is difficult to form a sealing point and the holding force of the can lid is insufficient, so that it cannot be fully sealed and leaks.

本發明為解決上述問題，其目的在提供一種瓶罐及瓶容器，其即使於嘗試將用以形成瓶罐之原板予以薄壁化之情況下，也可抑制封蓋步驟中的口部之變形，並可防止橋接斷裂及填充的內容物之洩漏等封蓋不良之產生。 (解決問題之技術手段)In order to solve the above-mentioned problems, the object of the present invention is to provide a bottle can and a bottle container which can suppress the deformation of the mouth portion in the capping step even when the original plate used to form the bottle and can is thinned. , and can prevent the bridging fracture and the leakage of the filled content and other poor sealing. (technical means to solve the problem)

本發明之瓶罐係於上部具有口部之有底筒形之瓶罐；其特徵在於：上述口部具有螺旋接著有螺旋蓋之螺紋部、於螺紋部之下方供上述螺旋蓋之下襬部卡止之環狀之卡止部、及連接於上述卡止部之下方且垂直地延伸之垂直部，當將上述瓶罐之口部之口徑設為A(mm)，將用以形成上述瓶罐之原板之板厚設為B(mm)，將上述卡止部之最大外徑與最小外徑之半徑差(卷邊深度)設為C(mm)時，其滿足以下之數式(1)， 數式(1)：A

Figure 02_image003
B
Figure 02_image003
C＞12.7。The bottle and can of the present invention is a bottomed cylindrical bottle and can with a mouth on the top; it is characterized in that: the mouth has a threaded portion that is screwed with a screw cap, and the hem portion of the screw cap is clamped under the threaded portion. The ring-shaped locking part and the vertical part connected to the bottom of the above-mentioned locking part and extending vertically, when the diameter of the mouth of the above-mentioned bottle is A (mm), will be used to form the above-mentioned bottle When the thickness of the original plate is B (mm), and the radius difference (curling depth) between the maximum outer diameter and the minimum outer diameter of the locking part is C (mm), it satisfies the following formula (1) , Formula (1): A
Figure 02_image003
B
Figure 02_image003
C>12.7.

本發明之瓶容器係具有於上部具有口部之有底筒形之瓶罐、及安裝於該瓶罐之口部之螺旋蓋者；其特徵在於：上述瓶罐係上述之瓶罐，上述螺旋蓋係於有頂筒形之罐蓋本體之周壁部形成有可與上述瓶罐之螺紋部的公螺紋形狀螺旋接合之母螺紋部，且於上述母螺紋部之下方具有卡止於上述瓶罐的上述裙部之下襬部，該罐蓋本體具有頂壁部及自其外周緣垂下之周壁部。 (對照先前技術之功效) The bottle container of the present invention has a bottomed cylindrical bottle with a mouth at the top, and a screw cap installed on the mouth of the bottle; The cover is formed on the peripheral wall of the top cylindrical tank cover body with a female thread part that can be screw-engaged with the male thread shape of the thread part of the above-mentioned bottle, and there is a lock on the bottle below the above-mentioned female thread part. The hem portion of the above-mentioned skirt portion, the can lid body has a top wall portion and a peripheral wall portion hanging down from its outer peripheral edge. (compared to the effect of previous technology)

根據本發明之瓶罐及瓶容器，當將瓶罐之口部之口徑設為A(mm)，將用以形成瓶罐之原板之板厚設為B(mm)，將供罐蓋之下襬部卡止之環狀之卡止部之最大外徑與最小外徑之半徑差(卷邊深度)設為C(mm)時，其滿足數式(1)：A

Figure 02_image003
B
Figure 02_image003
C＞12.7，因此，當於封蓋步驟中將罐蓋之下襬部成型為可捲緊卡止於卡止部之形狀時，可於朝徑向內側對罐蓋之周壁部的下端施加負載時抑制負載經由罐蓋之周壁部的下端而施加在卷邊部上，該卷邊部在卡止部之徑向內側具有凸起形狀，因此，即使於嘗試將用以形成瓶罐之原板予以薄壁化之情況下，也可抑制封蓋步驟中之口部的變形，可獲得充分之罐蓋的保持力，並可防止橋接斷裂及填充之內容物的洩漏等封蓋不良之產生。According to the bottle and bottle container of the present invention, when the caliber of the mouth of the bottle is set to A (mm), the plate thickness of the original plate used to form the bottle is set to B (mm), and the bottom of the can cover is set to B (mm). When the radius difference between the maximum outer diameter and the minimum outer diameter (curling depth) of the ring-shaped locking part of the locking part is set to C (mm), it satisfies the formula (1): A
Figure 02_image003
B
Figure 02_image003
C>12.7, therefore, when the hem part of the can end is formed into a shape that can be rolled up and locked at the locking part in the capping step, when a load can be applied to the lower end of the peripheral wall of the can end inward in the radial direction The restraining load is applied to the bead portion having a convex shape on the radially inner side of the locking portion through the lower end of the peripheral wall portion of the can lid. In the case of walling, deformation of the mouth during the capping process can also be suppressed, sufficient can cap holding force can be obtained, and cap failure such as bridge breakage and leakage of filled contents can be prevented.

根據本發明之第2項之發明，由於卡止部之最大外徑與最小外徑之半徑差(卷邊深度)C為1.30mm以上，藉此可於封蓋步驟中確實地抑制負載經由罐蓋之周壁部之下端而施加在瓶罐之口部，因此可進一步確實地抑制封蓋步驟中之口部的變形。根據本發明之第3項之發明，當於封蓋步驟中朝內側對卡止部施加負載時，可抑制在構成卡止部之斜面產生橢圓變形之情況，因此可獲得充分之罐蓋之保持力，並可進一步確實地防止填充之內容物之洩漏等封蓋不良之產生。根據本發明之第4項之發明，即使瓶罐之口部之口徑A為33.0〜34.0mm，仍可於封蓋步驟中確實地抑制負載經由罐蓋之周壁部之下端而施加在瓶罐之口部，因此可確實地抑制封蓋步驟中之口部之變形。According to the second invention of the present invention, since the radius difference (curling depth) C between the maximum outer diameter and the minimum outer diameter of the locking portion is 1.30 mm or more, it is possible to reliably suppress the load from passing through the can during the capping step. Since the lower end of the peripheral wall of the cap is applied to the mouth of the bottle, deformation of the mouth during the capping step can be more reliably suppressed. According to the invention of claim 3 of the present invention, when a load is applied inwardly to the locking portion in the capping step, the occurrence of elliptical deformation on the inclined surface constituting the locking portion can be suppressed, so that sufficient retention of the can lid can be obtained. force, and can further reliably prevent the leakage of the filled content and other poor sealing. According to the fourth aspect of the present invention, even if the mouth diameter A of the bottle and can is 33.0 to 34.0 mm, it is possible to reliably suppress the load from being applied to the bottle and can through the lower end of the peripheral wall of the can in the capping step. Therefore, deformation of the mouth in the capping step can be reliably suppressed.

以下，詳細地對本發明進行說明。如圖1所示，本發明之一實施形態之瓶容器係於內部填充飲料等之內容物，且具備上部具有口部101之有底筒形之瓶罐100、及安裝於該瓶罐100之口部101且密封瓶罐100之螺旋蓋150。Hereinafter, the present invention will be described in detail. As shown in FIG. 1 , a bottle container according to an embodiment of the present invention is filled with contents such as beverages, and includes a bottomed cylindrical bottle 100 with a mouth 101 on the top, and a bottomed cylindrical bottle 100 mounted on the bottle 100. The mouth 101 and the screw cap 150 of the sealed bottle 100 .

本發明之一實施形態之瓶罐100係包含鋁、鋁合金、鋼等之金屬材料。瓶罐100具有罐身(未圖示)及罐底(未圖示)，罐身具有與罐底連續之圓柱狀之本體部(未圖示)、隨著自該本體部朝向上方而朝徑向內側縮徑之錐形之肩部102(參照圖2)、及經由垂直立設於該肩部102之上方之垂直部144而立設且較罐身直徑小之口部101。The bottle and can 100 in one embodiment of the present invention is made of metal materials such as aluminum, aluminum alloy, steel, and the like. The bottle can 100 has a body (not shown) and a bottom (not shown). The body has a cylindrical body (not shown) continuous with the bottom. A tapered shoulder 102 (refer to FIG. 2 ) that decreases in diameter inwardly, and a mouth 101 that is erected through a vertical portion 144 vertically erected above the shoulder 102 and has a smaller diameter than the can body.

於口部101形成有可供罐蓋150螺旋接合之螺紋部110，該螺紋部110具有將複數個截面大致圓弧狀之彎曲部組合而成之公螺紋形狀，於螺紋部110之下方沿繞罐軸之全周呈環狀地形成有卡止部120，該卡止部120係供罐蓋150之下襬部153藉由滾轉成型而卡止。如圖2所示，卡止部120具有：裙部130，其形成在與螺紋部110之下方鄰接之位置；及卷邊部140，其形成在與裙部130之下方連續之位置。裙部130係遍及罐軸之全周朝徑向外側(圖2中之左側)鼓起而形成之環狀之凸部，且裙部130之外徑例如大於螺紋部110之外徑。卷邊部140係朝徑向內側(圖2中之右側)縮徑之環狀之凹部，且其為遍及罐軸之全周朝與裙部130相反之方向縮徑所形成。此外，於口部101上端之開口緣，遍及罐軸之全周呈環狀地形成有自徑向外側朝下方折返之捲曲部103。 The mouth 101 is formed with a threaded part 110 that can be screwed to the tank cover 150. The threaded part 110 has a male thread shape formed by combining a plurality of curved parts with a substantially arc-shaped cross section. The entire circumference of the tank shaft is formed with a locking portion 120 in a ring shape, and the locking portion 120 is used for locking the hem portion 153 of the tank cover 150 by rolling. As shown in FIG. 2 , the locking part 120 has: a skirt part 130 formed at a position adjacent to the lower part of the thread part 110 ; The skirt 130 is an annular protrusion formed by bulging radially outward (left side in FIG. 2 ) throughout the entire circumference of the tank shaft. The crimp portion 140 is an annular concave portion that decreases in diameter radially inwardly (to the right in FIG. 2 ), and is formed by reducing the diameter in the direction opposite to the skirt portion 130 throughout the entire circumference of the tank shaft. In addition, at the opening edge at the upper end of the mouth portion 101, a curl portion 103 that is turned back downward from the radially outer side is annularly formed over the entire circumference of the can shaft.

於沿罐軸之縱截面上，裙部130具備隨著朝向下方而朝徑向外側之上斜面131、自上斜面131連續之朝大致上下方向延伸之壁面132、及自壁面132連續之隨著朝向下方而朝徑向內側之下斜面133，且呈各邊(各面)接續成平滑之弧狀之截面形狀，上斜面131與螺紋部110之下端連續。此外，下斜面133之截面為大致直線狀。於沿罐軸之縱截面上，卷邊部140具備與裙部130之下斜面133連續且隨著朝向下方而朝徑向內側之截面大致直線狀之上斜面141、自上斜面141連續之朝大致上下方向延伸之壁面142、及自壁面142連續之隨著朝向下方而朝徑向外側之下斜面143，且呈各邊(各面)接續成平滑之弧狀之截面形狀。於卷邊部140之下斜面143之下方連接有垂直延伸之垂直部144，藉此，卡止部120與肩部102經由垂直部144而連接。於本實施形態中，卷邊部140之上斜面141係形成為與裙部130之下斜面133之延長線一致，且將罐蓋150之下襬部153相對於該裙部130之下斜面133及卷邊部140之上斜面141進行滾轉成型而將下襬部153朝徑向內側彎曲，藉此，將罐蓋150卡止。On the longitudinal section along the tank axis, the skirt 130 has an upward inclined surface 131 radially outward as it goes downward, a wall surface 132 extending from the upward inclined surface 131 in a substantially vertical direction, and a continuous wall surface 132 extending from the wall surface 132. The lower inclined surface 133 faces downward and radially inward, and has a cross-sectional shape in which each side (surface) continues to form a smooth arc, and the upper inclined surface 131 is continuous with the lower end of the threaded portion 110 . In addition, the cross section of the lower slope 133 is substantially linear. On the longitudinal section along the tank axis, the curling portion 140 has an upper inclined surface 141 that is continuous with the lower inclined surface 133 of the skirt portion 130 and is substantially linear in a cross-section toward the radially inner side as it goes downward, and an upper inclined surface 141 that is continuous from the upper inclined surface 141. The wall surface 142 extending substantially in the vertical direction and the downward slope 143 continuing from the wall surface 142 toward the radially outer side as it goes downward have a cross-sectional shape in which each side (each surface) continues to form a smooth arc. A vertical portion 144 extending vertically is connected below the inclined surface 143 under the curling portion 140 , whereby the locking portion 120 and the shoulder portion 102 are connected through the vertical portion 144 . In this embodiment, the upper inclined surface 141 of the curling portion 140 is formed to be consistent with the extension line of the lower inclined surface 133 of the skirt portion 130, and the hem portion 153 of the can lid 150 is relative to the lower inclined surface 133 of the skirt portion 130 and the lower inclined surface 133 of the skirt portion 130. The inclined surface 141 on the curling portion 140 is roll formed to bend the hem portion 153 radially inward, thereby locking the can lid 150 .

於本實施形態中，當將瓶罐100之口部101之口徑設為A(mm)，將用以形成瓶罐100之原板之板厚設為B(mm)，將卡止部120之最大外徑與最小外徑之半徑差(卷邊深度)設為C(mm)時，其滿足以下之數式(1)。 數式(1)：A

Figure 02_image003
B
Figure 02_image003
C＞12.7 瓶罐100之口部101之口徑係指捲曲部103之最大外徑。卡止部120之最大外徑係指裙部130之最大外徑即最大鼓起徑，於本實施形態中稱為壁面132之最大外徑。卡止部120之最小外徑係指卷邊部140之最小外徑，於本實施形態中稱為壁面142之最小外徑。In this embodiment, when the diameter of the mouth 101 of the bottle and can 100 is set to A (mm), the thickness of the original plate used to form the bottle and can 100 is set to B (mm), and the maximum diameter of the locking portion 120 is set to When the radius difference (curling depth) between the outer diameter and the minimum outer diameter is C (mm), it satisfies the following formula (1). Formula (1): A
Figure 02_image003
B
Figure 02_image003
C>12.7 The caliber of the mouth 101 of the bottle 100 refers to the maximum outer diameter of the crimp 103 . The maximum outer diameter of the locking portion 120 refers to the maximum outer diameter of the skirt 130 , that is, the maximum bulge diameter, and is called the maximum outer diameter of the wall surface 132 in this embodiment. The minimum outer diameter of the locking portion 120 refers to the minimum outer diameter of the curling portion 140 , which is referred to as the minimum outer diameter of the wall surface 142 in this embodiment.

卷邊深度(圖2中以d顯示)例如為1.30mm以上，較佳為1.30mm以上且1.70mm以下，更佳為1.40mm以上且1.60mm以下，特佳為1.45mm。藉由卷邊深度為1.30mm以上，可於封蓋步驟中確實地抑制負載經由罐蓋150之周壁部之下端而施加在瓶罐100之口部101。於卷邊深度過小之情況下，有於滾轉成型時負載經由罐蓋150之下襬部153而施加在口部101，進而招致口部101之變形之虞。另一方面，於卷邊深度過大之情況下，有使成型更難，以致於卷邊部140等產生斷裂等之成型不良之虞。裙部130之最大外徑例如為37.80mm。卷邊部140之最小外徑例如為34.90mm。此外，卷邊部140之沿罐軸之高度例如為4.42mm。The curling depth (shown by d in FIG. 2 ) is, for example, not less than 1.30 mm, preferably not less than 1.30 mm and not more than 1.70 mm, more preferably not less than 1.40 mm and not more than 1.60 mm, most preferably not less than 1.45 mm. With the crimping depth being 1.30 mm or more, it is possible to reliably suppress the load from being applied to the mouth 101 of the bottle 100 through the lower end of the peripheral wall of the can lid 150 in the capping step. If the beading depth is too small, the load may be applied to the mouth 101 through the hem portion 153 of the can lid 150 during roll forming, thereby causing deformation of the mouth 101 . On the other hand, if the beading depth is too large, forming becomes more difficult, and there is a possibility that the beading portion 140 or the like may be broken or have poor molding. The maximum outer diameter of the skirt 130 is, for example, 37.80 mm. The minimum outer diameter of the curling portion 140 is, for example, 34.90 mm. In addition, the height of the curling portion 140 along the axis of the tank is, for example, 4.42 mm.

瓶罐100之口部101之口徑例如為33.45mm，可設為33.0〜34.0mm左右。用以形成瓶罐100之原板之板厚，例如於容量為300mL之情況下可為0.300〜0.350mm，於容量為400mL之情況下可為0.300〜0.350mm。此外，於本實施形態中，裙部130之下斜面133及卷邊部140之上斜面141之傾斜角度θ例如相對於罐軸而為48.7°。The diameter of the mouth portion 101 of the bottle can 100 is, for example, 33.45 mm, and may be set at about 33.0 to 34.0 mm. The plate thickness of the original plate used to form the bottle can 100 may be 0.300-0.350mm in the case of a capacity of 300mL, or 0.300-0.350mm in the case of a capacity of 400mL, for example. In addition, in this embodiment, the inclination angle θ of the lower inclined surface 133 of the skirt portion 130 and the upper inclined surface 141 of the bead portion 140 is, for example, 48.7° with respect to the tank axis.

此外，卡止部120之最大外徑即裙部130之最大外徑與垂直部144之外徑(最大外徑)可設為大致相等。藉由裙部130之最大外徑與垂直部144之外徑為大致相等之大小，當於封蓋步驟中沿罐軸對卡止部120施加朝下方之負載及朝徑向內側之負載時，可抑制在構成卷邊部140之上斜面141、壁面142及下斜面143上產生橢圓變形，因此可獲得充分之罐蓋之保持力。其可推測為是因為保持卷邊部140之上斜面141(裙部130之下斜面133)及下斜面143之平衡，即使於被施加朝向徑向內側之負載時也不易朝徑向內側彎曲，並且還可抑制上下方向之變形，因而提高軸負載強度。In addition, the maximum outer diameter of the locking portion 120 , that is, the maximum outer diameter of the skirt portion 130 and the outer diameter (maximum outer diameter) of the vertical portion 144 may be substantially equal. Since the maximum outer diameter of the skirt portion 130 is approximately equal to the outer diameter of the vertical portion 144, when a downward load and a radially inward load are applied to the locking portion 120 along the can axis during the capping step, Oval deformation on the upper slope 141, the wall 142, and the lower slope 143 constituting the beading portion 140 can be suppressed, so that a sufficient holding force of the can lid can be obtained. It can be presumed that because the balance between the upper slope 141 (the lower slope 133 of the skirt 130 ) and the lower slope 143 of the curling portion 140 is maintained, even when a radially inward load is applied, it is not easy to bend radially inward. And it can also suppress the deformation in the vertical direction, thus improving the axial load strength.

罐蓋150係於有頂筒形之金屬製罐蓋本體之周壁部152形成有與瓶罐100之螺紋部110之公螺紋形狀螺旋接合之母螺紋部，且於母螺紋部之下方形成有卡止於瓶罐100之卡止部120之下襬部153，該罐蓋本體具有頂壁部151及自其外周緣垂下之周壁部152。於罐蓋150內部之頂壁部151之背面夾入包含軟質樹脂等之密封用構件154，該密封用構件154用以封閉瓶罐100之開口端面。The can lid 150 is formed on the peripheral wall portion 152 of the top cylindrical metal can lid body with a female thread portion screwed with the male thread shape of the thread portion 110 of the bottle can 100, and a clip is formed below the female thread portion. Ending at the hem portion 153 of the locking portion 120 of the bottle can 100, the lid body has a top wall portion 151 and a peripheral wall portion 152 hanging down from the outer peripheral edge thereof. A sealing member 154 made of soft resin or the like is sandwiched between the back surface of the top wall portion 151 inside the can lid 150 , and the sealing member 154 is used to close the opening end surface of the bottle can 100 .

瓶罐100係作為無縫之一體物，將包含鋁、鋁合金、鋼等金屬材料之原板沖壓為圓形且對其進行拉深加工，獲得有底圓筒形之杯成型體，再對其進行拉深．引縮加工(DI成型)而獲得有底圓筒形之罐體之後，於縮頸步驟中形成被縮徑為錐形之肩部及圓筒形之口部，然後進行包含螺紋加工等之口部之成型，藉此而製造之。瓶容器係在瓶罐100之內部填充飲料等內容物，且利用封蓋裝置將有頂筒形之罐蓋150嵌合於口部101，藉此而製造之。於將罐蓋150安裝於瓶罐100之封蓋步驟中，以密封用構件154抵接於口部101之開口端面之方式覆蓋罐蓋150，且對該罐蓋150施加朝下方之負載以使瓶罐100內成為密封狀態，然後一面維持該密封狀態，一面在與螺紋部110對應之高度位置上朝徑向內側將車螺紋滾輪壓抵在罐蓋150之周壁部152之上部並沿繞罐軸之圓周方向轉動，藉此而於罐蓋150之周壁上一面成型與螺紋部110之公螺紋形狀配合之母螺紋形狀一面形成螺旋接合狀態，並且，在與裙部130與卷邊部140之交界對向之高度位置上一面藉由邊緣滾輪朝徑向內側對罐蓋150之周壁之下端施加負載一面沿繞罐軸之全周轉動而對罐蓋150之下襬部153進行滾轉成型，將罐蓋150之下襬部153緊密地卡止於裙部130及卷邊部140。The bottle and can 100 is a seamless integrated object. The original plate containing aluminum, aluminum alloy, steel and other metal materials is stamped into a circle and then deep-drawn to obtain a bottomed cylindrical cup molding, which is then processed. Deep drawing. After shrinking processing (DI molding) to obtain a bottomed cylindrical tank body, the tapered shoulder and cylindrical mouth are formed in the necking step, and then the mouth including thread processing, etc. The shape of the part is used to make it. The bottle container is manufactured by filling the inside of the bottle can 100 with contents such as beverages, and fitting a cylindrical can cap 150 with a top to the mouth 101 using a capping device. In the capping step of attaching the can lid 150 to the bottle can 100, the can lid 150 is covered so that the sealing member 154 abuts against the opening end surface of the mouth 101, and a downward load is applied to the can lid 150 so that The inside of the bottle can 100 is in a sealed state, and then while maintaining the sealed state, the threaded roller is pressed against the upper part of the peripheral wall portion 152 of the tank cover 150 at the height position corresponding to the threaded portion 110 on the one hand and pressed against the upper part of the peripheral wall portion 152 of the tank cover 150 and along the winding direction of the can. The shaft rotates in the circumferential direction, thereby forming a female screw thread shape on the peripheral wall of the tank cover 150 to match the male screw thread shape of the threaded part 110 and forming a spiral joint state, and, between the skirt part 130 and the curling part 140 At the height position facing the junction, the edge roller applies a load to the lower end of the peripheral wall of the can lid 150 radially inwardly and rotates along the full circumference around the can axis to perform roll forming on the hem portion 153 of the can lid 150. The hem portion 153 of the can lid 150 is locked tightly to the skirt portion 130 and the curling portion 140 .

根據以上之瓶罐100及瓶容器，由於瓶罐100之口部101之口徑A(mm)、用以形成瓶罐之原板之板厚B(mm)、供下襬部153卡止之環狀之卡止部120之最大外徑與最小外徑之半徑差(卷邊深度)C(mm)滿足數式(1)：A

Figure 02_image003
B
Figure 02_image003
C＞12.7，因此當於封蓋步驟中將罐蓋150之下襬部153成型為可捲緊卡止於卡止部120之形狀時，可於朝徑向內側對罐蓋150之周壁部152之下端施加負載時，抑制負載經由罐蓋150之周壁部152之下端而施加在卷邊部140上，該卷邊部140在卡止部120之徑向內側具有凸起形狀，因此，即使於嘗試將用以形成瓶罐100之原板予以薄壁化之情況下，也可抑制封蓋步驟中之口部101之變形，可獲得充分之罐蓋150之保持力，並可防止橋接斷裂及填充之內容物之洩漏等封蓋不良之產生。According to the above bottle can 100 and bottle container, due to the caliber A (mm) of the mouth portion 101 of the bottle can 100, the plate thickness B (mm) of the original plate used to form the bottle can, and the ring shape for the hem portion 153 to be locked, The radius difference (curling depth) C (mm) between the maximum outer diameter and the minimum outer diameter of the locking part 120 satisfies the formula (1): A
Figure 02_image003
B
Figure 02_image003
C > 12.7, so when the hem portion 153 of the can lid 150 is formed into a shape that can be rolled up and locked on the locking portion 120 in the capping step, it can be aligned radially inwardly with respect to the peripheral wall portion 152 of the can lid 150 When the load is applied at the lower end, the load is restrained from being applied to the curling portion 140 through the lower end of the peripheral wall portion 152 of the can lid 150. The curling portion 140 has a convex shape radially inside the locking portion 120, so even when trying to Even when the original plate used to form the bottle and can 100 is thinned, the deformation of the mouth 101 in the capping step can be suppressed, sufficient holding force of the can cap 150 can be obtained, and bridge fracture and filled contents can be prevented Leakage and other sealing failures.

以上，對本發明之實施形態之瓶罐及瓶容器進行了說明，但本發明不限於上述實施形態，其可於未超出本發明之主旨之範圍內添加各種之變更。例如，裙部130及卷邊部140之具體形狀只要為可對罐蓋150之下襬部153進行滾轉成型而卡止於卡止部120之形狀，則各面也可為非平面狀而為弧形彎曲狀。此外，例如，瓶罐也可為將罐身與罐底分開而形成者。 [實施例] As mentioned above, the bottle can and the bottle container of embodiment of this invention were demonstrated, but this invention is not limited to the said embodiment, It can add various changes in the range which does not deviate from the summary of this invention. For example, as long as the specific shapes of the skirt portion 130 and the curling portion 140 are such that the hem portion 153 of the can lid 150 can be rolled and locked to the locking portion 120, each surface can also be non-planar. For arc curved shape. In addition, for example, the bottle can may be formed by separating the can body and the can bottom. [Example]

以下，對本發明之具體實施例進行說明，但本發明不限於此。 [實施例1] 利用以下之規格製作10個圖1及圖2所示之瓶罐[1]。 •容量：300mL •原板之材質：鋁合金 •原板之板厚：0.315mm •口部之口徑：33.45mm •卡止部之最大外徑(裙部之最大外徑)：37.80mm •卡止部之最小外徑(卷邊部之最小外徑)：34.90mm •卡止部之最大外徑與最小外徑之半徑差(卷邊深度)：1.45mm •裙部之下斜面之角度：48.7° A

Figure 02_image003
B
Figure 02_image003
C=15.3(＞12.7)，對於獲得之10個瓶罐，以約111N之負載自左右橫向壓縮卡止部，測定俯視時之初始之卷邊部之最小外徑與橫向壓縮後之卷邊部之最小外徑之差(以下稱為撓曲量)，其結果，平均值為2.28mm。將結果示於圖3。再者，只要撓曲量為2.65mm以下則認為可抑制封蓋不良之產生而經得起實際使用。Hereinafter, specific examples of the present invention will be described, but the present invention is not limited thereto. [Example 1] Make 10 bottles [1] as shown in Fig. 1 and Fig. 2 using the following specifications. •Capacity: 300mL •Material of the original plate: aluminum alloy •Thickness of the original plate: 0.315mm •The diameter of the mouth: 33.45mm •The maximum outer diameter of the locking part (the maximum outer diameter of the skirt): 37.80mm •The locking part The minimum outer diameter (the minimum outer diameter of the crimping part): 34.90mm • The radius difference between the maximum outer diameter and the minimum outer diameter of the locking part (curling depth): 1.45mm • The angle of the bevel under the skirt: 48.7° A
Figure 02_image003
B
Figure 02_image003
C=15.3 (>12.7), for the obtained 10 bottles and cans, use a load of about 111N to compress the locking part laterally from the left and right, and measure the minimum outer diameter of the initial crimping part and the crimping part after lateral compression when viewed from above The difference between the minimum outer diameter (hereinafter referred to as the amount of deflection), the result, the average value is 2.28mm. The results are shown in Fig. 3 . In addition, as long as the amount of deflection is 2.65 mm or less, it is considered that the generation of capping defects can be suppressed and it is acceptable for practical use.

[實施例2] 於實施例1中，除了使卡止部之最小外徑變化且將最大外徑與最小外徑之半徑差(卷邊深度)設為1.30mm外，其餘以同樣方法製作10個瓶罐[2]。其中，A

Figure 02_image003
B
Figure 02_image003
C=13.7(＞12.7)，經與實施例1相同地對獲得之10個瓶罐之撓曲量進行測定後，平均值為2.55mm。將結果示於圖3。[Example 2] In Example 1, except that the minimum outer diameter of the locking part is changed and the radius difference between the maximum outer diameter and the minimum outer diameter (curling depth) is set to 1.30mm, the rest is produced in the same way. bottles and cans[2]. Among them, A
Figure 02_image003
B
Figure 02_image003
C=13.7 (>12.7), after measuring the deflection of the 10 obtained bottles and cans in the same manner as in Example 1, the average value is 2.55mm. The results are shown in Fig. 3 .

[實施例3] 於實施例1中，除了使卡止部之最小外徑變化且將最大外徑與最小外徑之半徑差(卷邊深度)設為1.50mm外，其餘以同樣方法製作10個瓶罐[3]。其中，A

Figure 02_image003
B
Figure 02_image003
C=15.8(＞12.7)，經與實施例1相同地對獲得之10個瓶罐之撓曲量進行測定後，平均值為2.28mm。將結果示於圖3。[Example 3] In Example 1, except that the minimum outer diameter of the locking part is changed and the radius difference between the maximum outer diameter and the minimum outer diameter (curling depth) is set to 1.50mm, the rest is produced in the same way. bottles and cans[3]. Among them, A
Figure 02_image003
B
Figure 02_image003
C=15.8 (>12.7), after measuring the deflection of the 10 bottles and cans obtained in the same manner as in Example 1, the average value is 2.28mm. The results are shown in Fig. 3 .

[實施例4] 於實施例1中，除了使卡止部之最小外徑變化且將最大外徑與最小外徑之半徑差(卷邊深度)設為1.80mm外，其餘以同樣方法製作10個瓶罐[4]。其中，A

Figure 02_image003
B
Figure 02_image003
C=19.0(＞12.7)，經與實施例1相同地對獲得之10個瓶罐之撓曲量進行測定後，平均值為1.75mm。將結果示於圖3。[Example 4] In Example 1, except that the minimum outer diameter of the locking part is changed and the radius difference between the maximum outer diameter and the minimum outer diameter (curling depth) is set to 1.80mm, the rest is produced in the same way. bottles and cans[4]. Among them, A
Figure 02_image003
B
Figure 02_image003
C=19.0 (>12.7), after measuring the deflection of the 10 obtained bottles and cans in the same manner as in Example 1, the average value is 1.75 mm. The results are shown in Fig. 3 .

[比較例1][Comparative example 1]

於實施例1中，除了使卡止部之最小外徑變化且將最大外徑與最小外徑之半徑差(卷邊深度)設為1.20mm外，其餘以同樣方法製作10個瓶罐[5]。其中，A×B×C=12.6(<12.7)，經與實施例1相同地對獲得之10個瓶罐之撓曲量進行測定後，平均值為3.18mm。將結果示於圖3。 In Example 1, except that the minimum outer diameter of the locking part is changed and the radius difference (curling depth) between the maximum outer diameter and the minimum outer diameter is set to 1.20mm, the rest are made in the same way as 10 bottles [5 ]. Among them, A×B×C=12.6 (<12.7), after measuring the deflection of 10 obtained bottles and cans in the same manner as in Example 1, the average value is 3.18mm. The results are shown in Fig. 3 .

[參考例1] [Reference example 1]

於實施例1中，除了將使用之原板設為板厚0.345mm者，使卡止部之最小外徑變化且將最大外徑與最小外徑之半徑差(卷邊深度)設為1.20mm外，其餘以同樣方法製作10個瓶罐[6]。其中，A×B×C=13.8(>12.7)，經與實施例1相同地對獲得之10個瓶罐之撓曲量進行測定後，平均值為2.30mm。將結果示於圖3。 In Example 1, except that the original plate used was set to a plate thickness of 0.345mm, the minimum outer diameter of the locking part was changed and the radius difference between the maximum outer diameter and the minimum outer diameter (curling depth) was set to 1.20mm , and the rest make 10 bottles and jars in the same way [6]. Among them, A×B×C=13.8 (>12.7), after measuring the deflection of 10 obtained bottles and cans in the same manner as in Example 1, the average value is 2.30 mm. The results are shown in Fig. 3 .

由圖3明顯可知，根據本發明之瓶罐[1]~[4]，可確認任一撓曲量皆小於所擔心會產生封蓋不良之2.65mm，而可實現輕量化，並且可獲得與使用如參考例1之瓶罐[6]之板厚大之原板之瓶罐相同程度之強度(抗撓曲強度)。另一方面，於比較例1之瓶罐[5]中，撓曲量為3.18mm而為較大，可確認不能獲得充分之強度(抗撓曲強度)。 It can be clearly seen from Fig. 3 that, according to the bottles [1]~[4] of the present invention, it can be confirmed that any amount of deflection is less than 2.65 mm, which is worried about causing defective sealing, so that weight reduction can be achieved, and the same can be obtained. The strength (flexural strength) of the bottle and can using the thick original plate of the bottle and can [6] of Reference Example 1 is the same level. On the other hand, in the bottle can [5] of Comparative Example 1, the amount of deflection was large at 3.18 mm, and it was confirmed that sufficient strength (flexural strength) could not be obtained.

100:瓶罐 100: Bottles and cans

101:口部 101: Mouth

102:肩部 102: shoulder

103:捲曲部 103: curling department

110:螺紋部 120:卡止部 130:裙部 131:上斜面 132:壁面 133:下斜面 140:卷邊部 141:上斜面 142:壁面 143:下斜面 144:垂直部 150:罐蓋(螺旋蓋) 151:頂壁部 152:周壁部 153:下襬部 154:密封用構件 d:卷邊深度 θ:傾斜角度110: threaded part 120: locking part 130: skirt 131: upper bevel 132: wall 133: Down slope 140: curling part 141: upper bevel 142: wall 143: Down slope 144: vertical part 150: jar lid (screw lid) 151: top wall 152: Peripheral wall 153: hem part 154: Components for sealing d: curling depth θ: tilt angle

圖1為以安裝有罐蓋之狀態顯示本發明之一實施形態之瓶罐之局部剖視圖。 圖2為顯示本發明之一實施形態之瓶罐之卡止部之一部分之端面圖。 圖3為顯示本發明之實施例及比較例之瓶罐之撓曲量之長條圖。Fig. 1 is a partial cross-sectional view showing a bottle and can according to an embodiment of the present invention with a can lid attached. Fig. 2 is an end view showing part of the locking portion of the bottle-can according to the embodiment of the present invention. Fig. 3 is a bar graph showing the amount of deflection of bottles and cans of Examples and Comparative Examples of the present invention.

102:肩部 102: shoulder

130:裙部 130: skirt

132:壁面 132: wall

133:下斜面 133: Down slope

140:卷邊部 140: curling part

141:上斜面 141: upper bevel

142:壁面 142: wall

143:下斜面 143: Down slope

144:垂直部 144: vertical part

d:卷邊深度 d: curling depth

θ:傾斜角度 θ: tilt angle

Claims (4)

一種瓶罐，其係於上部具有口部之有底筒形之瓶罐；其特徵在於：上述口部具有螺旋接著有螺旋蓋之螺紋部、於螺紋部之下方供上述螺旋蓋之下襬部卡止的環狀之卡止部、及連接於上述卡止部的下方且垂直地延伸之垂直部，當將上述瓶罐的口部之口徑設為A(mm)，將用以形成上述瓶罐的原板之板厚設為B(mm)，將上述卡止部的最大外徑與最小外徑之半徑差(卷邊深度)設為C(mm)時，其滿足以下之數式(1)，數式(1)：A×B×C>12.7，於上述口部上端之開口緣，形成有自徑向外側朝下方折返之捲曲部，上述口部之口徑指上述捲曲部之最大外徑，上述瓶罐之口部之口徑A為33.0~34.0mm，用以形成上述瓶罐之原板之板厚為0.300~0.315mm。 A bottle can, which is tied to a bottomed cylindrical bottle with a mouth on the top; it is characterized in that: the mouth has a threaded part that is screwed and connected with a screw cap, and the hem part of the screw cap is clamped under the threaded part. The ring-shaped locking portion connected to the above locking portion and the vertical portion extending vertically below the above locking portion, when the diameter of the mouth of the above bottle is A (mm), will be used to form the above bottle When the thickness of the original plate is B (mm), and the radius difference between the maximum outer diameter and the minimum outer diameter of the locking part (curling depth) is C (mm), it satisfies the following formula (1) , Equation (1): A×B×C>12.7, at the opening edge of the upper end of the above-mentioned mouth, there is a curled portion that turns back downward from the radially outside, and the diameter of the above-mentioned mouth refers to the maximum outer diameter of the above-mentioned curled portion , The caliber A of the mouth of the above-mentioned bottle and can is 33.0~34.0mm, and the plate thickness of the original plate used to form the above-mentioned bottle and can is 0.300~0.315mm. 如請求項1之瓶罐，其中，上述卡止部之最大外徑與最小外徑之半徑差(卷邊深度)C為1.30mm以上。 The bottle can according to claim 1, wherein the radius difference (curling depth) C between the maximum outer diameter and the minimum outer diameter of the locking portion is 1.30 mm or more. 如請求項1或2之瓶罐，其中，上述卡止部之最大外徑與上述垂直部之外徑大致相等。 The bottle can according to claim 1 or 2, wherein the maximum outer diameter of the locking portion is approximately equal to the outer diameter of the vertical portion. 一種瓶容器，其係具有於上部具有口部之有底筒形之瓶罐、及安裝於該瓶罐之口部之螺旋蓋者；其特徵在於：上述瓶罐係請求項1或2之瓶罐，上述螺旋蓋係於有頂筒形之罐蓋本體之周壁部形成有可與上述瓶罐之 螺紋部的公螺紋形狀螺旋接合之母螺紋部，且於上述母螺紋部之下方具有卡止於上述瓶罐的上述卡止部之下襬部，該罐蓋本體具有頂壁部及自其外周緣垂下之周壁部。 A bottle container, which has a bottomed cylindrical bottle with a mouth on the top, and a screw cap installed on the mouth of the bottle; its feature is that the above-mentioned bottle is the bottle of claim 1 or 2 Cans, the above-mentioned screw caps are formed on the peripheral wall of the top cylindrical tank cover body, which can be connected with the above-mentioned bottles and cans. The male thread shape of the thread part is screwed with the female thread part, and there is a hem part below the above-mentioned female thread part, which is locked to the above-mentioned locking part of the above-mentioned bottle. The surrounding wall that hangs down.
TW109136786A 2019-12-10 2020-10-23 Bottles and Bottle Containers TWI786453B (en)

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