KR20050039471A - Airtight container for food - Google Patents
Airtight container for food Download PDFInfo
- Publication number
- KR20050039471A KR20050039471A KR1020030074940A KR20030074940A KR20050039471A KR 20050039471 A KR20050039471 A KR 20050039471A KR 1020030074940 A KR1020030074940 A KR 1020030074940A KR 20030074940 A KR20030074940 A KR 20030074940A KR 20050039471 A KR20050039471 A KR 20050039471A
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- South Korea
- Prior art keywords
- locking
- plastic
- container
- container body
- lid
- Prior art date
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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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
- B65D43/0208—Removable lids or covers without integral tamper element secured by snapping over beads or projections on both the inside and the outside of the mouth of the container
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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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
- B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00064—Shape of the outer periphery
- B65D2543/00074—Shape of the outer periphery curved
- B65D2543/00101—Shape of the outer periphery curved square-like or rectangular-like
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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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00296—Plastic
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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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
- B65D2543/00629—Massive bead
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00953—Sealing means
- B65D2543/00962—Sealing means inserted
- B65D2543/00972—Collars or rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
본 발명의 목적은 사출 성형 제작시 플라스틱 용융액의 흐름이 사방으로 원활하고 균등하게 일어나도록 유도하며 웰드 라인이 굽힘 응력이 반복하여 작용하는 힌지부를 피해 강도에 영향이 없는 몸체부위에 생성되도록 하는 구조의 음식물용 플라스틱재 4각 밀폐 용기를 제공하는데 있다.An object of the present invention is to induce the flow of the plastic melt smoothly and evenly in all directions during the production of injection molding and the weld line is to be generated in the body portion does not affect the strength of the hinge portion is repeated bending stress acting To provide a four-season sealed container for plastic food.
이를 위해 본 발명은 일변이 다른변보다 길이가 긴 4각형의 용기본체와; 그 용기본체 상부로 4면에 각각 1개 또는 2개씩 돌출 형성하되 적어도 길이가 긴 변에는 서로 간격을 두고 2개가 성형되는 복수개의 잠금돌기와;To this end, the present invention is a four-sided container body of one side longer than the other side; A plurality of locking protrusions protruding from the top of the container body on one side or two on each of the four sides, each of which is formed at least on the long side at intervals;
그 각각의 잠금돌기에 끼워져 잠금하는 잠금구멍이 잠금돌기에 대항되는 위치마다에 형성된 잠금날개부와, 그 잠금날개부가 힌지에 의해 회동가능하게 연결된 상부덮개편으로 구성된 뚜껑과;A lid composed of a locking blade portion formed at each position of the locking hole inserted into each of the locking projections and opposed to the locking projection, and an upper cover piece which is rotatably connected by the hinge;
상기 뚜껑의 상부덮개편에 장착되어 용기본체를 밀폐하는 패킹; 을 포함하여 구성되는 음식물용 플라스틱재 4각 밀폐용기에 있어서,A packing attached to the upper cover piece of the lid to seal the container body; In the food plastic four-sided closed container configured to include,
상기 잠금날개부의 좌우 2개소에 형성된 잠금구멍의 사이에는 잠금구멍과의 사이에 협곡부를 형성하는 용융액 흐름 차단공을 구비하므로써 사출 성형시 플라스틱 용융액이 용융액 흐름 차단공을 우회하여 양측 협곡부로 흐르도록 유도되는 것을 특징으로 한다.By providing a melt flow blocking hole that forms a gorge between the locking hole between the locking holes formed at the left and right two places of the locking wing portion, the plastic melt flows into both gorges by bypassing the melt flow blocking hole during injection molding. It is characterized by.
Description
본 발명은 음식물용 플라스틱재 사각 밀폐 용기에 관한 것이다.The present invention relates to a plastic sealed rectangular container for food.
음식물을 담아 보관하는 용기로는 도 4 내지 도 6에 도시한 것과 같은 플라스틱재 밀폐용기(101)가 많이 사용되고 있다.As a container for storing food, plastic closure containers 101 as shown in FIGS. 4 to 6 are used.
이 플라스틱재 밀폐용기(101)는 용기본체(103)와 뚜껑(102)으로 구성되며, 용기본체(103) 상부에는 복수개의 잠금돌기(110)들이 돌출형성되고, 뚜껑(102)에는 힌지(106)에 의해 접혔다 펼쳐지는, 보다 정확한 표현으로는 힌지(106)를 중심으로 회동 움직임이 허용되는 잠금날개편(105)이 상부덮개면(104)과 일체로 형성되고, 그 잠금날개편(105)에는 잠금돌기(11)에 끼워져 잠금하는 잠금구멍(107)들이 각 잠금돌기(110)에 대응되는 위치에 형성되어 있다.The plastic closure container 101 is composed of a container body 103 and a lid 102, a plurality of locking projections 110 protruding from the container body 103, the hinge 102 to the lid 102 In a more accurate expression, folded and unfolded by), a lock blade piece 105 is formed integrally with the upper cover surface 104, which allows the rotational movement about the hinge 106, the lock blade piece 105 ), The locking holes 107 inserted into the locking protrusions 11 to be locked are formed at positions corresponding to the respective locking protrusions 110.
또한 용기본체(103)의 상부 테두리(113)에 대향되는 뚜껑(102)의 상부덮개면(104)에는 요홈(111)이 형성되고, 그 요홈(111)에 패킹(112)이 끼워져 있다.In addition, a groove 111 is formed in the upper cover surface 104 of the lid 102 opposite to the upper edge 113 of the container body 103, and a packing 112 is fitted in the groove 111.
이에따라 뚜껑(102)을 용기본체(103)위에 덮고 손가락 누름부(105a)를 손가락으로 눌러 붙여, 즉 잠금날개편(105)을 용기본체(103)의 잠금돌기(110)를 향해 밀어 붙이면 잠금돌기(110)들이 잠금구멍(107)을 통과하면서 잠금되며, 이때 상부 테두리(113)가 패킹(112)을 누르게 되므로써 용기본체(103) 내부 공간(114)을 외부로 대하여 밀폐하게 된다. Accordingly, the lid 102 is covered on the container body 103 and the finger pressing portion 105a is pressed with a finger, that is, the locking wing piece 105 is pushed toward the locking projection 110 of the container body 103 to lock the projection. The 110 is locked while passing through the locking hole 107, and the upper edge 113 is pressed against the packing 112, thereby sealing the inner space 114 of the container body 103 to the outside.
그런데 상기한 밀폐용기(101)는 잠금날개편(105)이 매우 두께가 감소된 부분인 힌지(106)로 연결되고, 그 힌지(106)는 잠금날개편(105)을 수없이 접었다 펼쳤다 하게 되므로써 굽힘 응력이 반복작용하여 매우 취약하다.By the way, the sealed container 101 is connected to the hinge 106, the lock wing piece 105 is a very reduced portion, the hinge 106 is folded and unfolded the lock wing piece 105 many times. Bending stress is very weak due to repeated action.
한편, 도시한 것과 같이 한변의 길이가 다른변보다 긴 4각 밀폐용기(101)의 경우, 특히 용기의 한변의 길이가 10cm 이상되는 경우 잠금날개편(105)의 잠금구멍(107)과 용기본체(103)의 잠금돌기(110)는 잠금날개편(105)의 양측으로 두개씩 형성되어 충분한 잠금력 및 밀폐력의 균일성을 확보토록 하고 있다.On the other hand, as shown in the case of the four-sided container 101, the length of one side is longer than the other side, in particular, if the length of one side of the container is more than 10cm, the locking hole 107 and the container body of the lock wing piece 105 Locking projections 110 of 103 are formed on both sides of the locking blade piece 105 to ensure a sufficient locking force and uniformity of the sealing force.
이 4각 밀폐용기(101) 두껑(102)의 경우 플라스틱 사출 성형시 뚜껑(102)의 정중앙에 해당되는 사출금형에 플라스틱 용융액주입게이트(115)가 성형되기 때문에 그 중앙의 용융액주입게이트(115)로부터 용융액이 사방으로 퍼져 나가 금형의 캐비티를 충전시켜 뚜껑(102)이 만들어지게 되는 과정에서 플라스틱 용융액이 각각의 끝단부까지 퍼져나가는 도달시간이 다르고 이에따라 용융액이 서로 반대방향으로 흘러 충돌을 일으키게 되므로써 웰드 라인(Weld line)을 형성하여 강도 취약부가 형성되어지게 된다.In the case of the lid 102 of the quadrangular sealed container 101, since the plastic melt injection gate 115 is molded in an injection mold corresponding to the center of the lid 102 during plastic injection molding, the melt injection gate 115 in the center thereof is formed. As the melt spreads from all sides and fills the cavity of the mold to make the lid 102, the arrival time of the plastic melt spreading to each end is different and accordingly, the melt flows in opposite directions and causes a collision. The weak line is formed to form a weak strength part.
그런데 잠금날개편(105)의 양쪽단부(105b)는 용융액주입게이트(115)로부터 가장 멀리 떨어져 있어 용융액 도달 시간이 가장 많이 소요되며, 또 잠금구멍(107)으로 인해 좁은 협곡부(105b)를 형성하고 있어 그 협곡부(105b)가 용융액 흐름에 저항체로 작용하여 용융액의 흐름이 정체되는 반면, 양측 잠금구멍(107) 사이의 중앙부위는 용융액주입게이트(115)로부터의 거리가 가깝고 또 간격도 넓어 유동 저항이 적으므로 용융액의 흐름이 원활히 일어나게 되어 화살표 도시와 같이 용융액의 흐름이 일어나 힌지(106)의 양 끝단인 힌지단부(106a)에서 용융액이 서로 충돌하여 웰드 라인을 형성하게 되는 경우가 자주발생(일반적으로 5∼15%의 비율로 힌지단부에서 웰드 라인이 형성됨)하고 있다.However, both ends 105b of the locking wing piece 105 are farthest from the molten liquid injection gate 115, so that the molten liquid reaches the most time and the narrow hole 105b is formed by the locking hole 107. While the gorge 105b acts as a resistance to the melt flow, the flow of the melt is stagnant, while the center portion between the two locking holes 107 is close to the melt injection gate 115 and has a large distance therebetween. Due to the low flow resistance, the flow of the melt occurs smoothly, and the melt flows as shown by the arrow, and the melts collide with each other at the hinge end portions 106a, which are both ends of the hinge 106, to form weld lines. (In general, weld lines are formed at the hinge ends at a rate of 5 to 15%).
이와같이 용융액이 서로 충돌하여 형성되는 웰드 라인이 힌지단부(106a)에 형성되면, 잠금날개부(105)를 반복하여 접었다 폈다하게 될 때 얇은 힌지단부(106a)가 크랙부를 형성하여 쉽게 찢어져 파손되며, 일단 힌지단부(106a)가 약간이라도 찢어지게 되면 힌지라인(106)을 따라 계속 확산되므로서 밀폐용기(101)의 수명을 현저히 감소시키게되며, 이는 소비자 불만의 가장 큰 문제점으로 지적되어 오고 있으나, 이러한 제품의 품질 불량은 제작된 상태에서는 확인할 수 없으며, 또 소비자가 제품을 사용중 일정시간 경과후(그러나 제품의 정상수명보다는 훨씬 짧은 시간)에 문제점이 드러나기 때문에 소비자 보호에 큰 헛점으로 지적되고 있다.In this way, when the weld lines formed by colliding with each other are formed at the hinge end portion 106a, when the lock wing portion 105 is repeatedly folded and released, the thin hinge end portion 106a forms a crack and is easily torn and broken. Once the hinge end 106a is slightly torn, it continues to spread along the hinge line 106, thereby significantly reducing the life of the airtight container 101, which has been pointed out as the biggest problem of consumer dissatisfaction. The poor quality of the product can not be confirmed in the manufactured state, and it is pointed out as a big fault in protecting the consumer because the problem is revealed after a certain period of time while using the product (but much shorter than the normal life of the product).
이에 본 발명은 상기한 문제점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은 사출 성형 제작시 플라스틱 용융액의 흐름이 사방으로 원활하고 균등하게 일어나도록 유도하며 웰드 라인이 굽힘 응력이 반복하여 작용하는 힌지부를 피해 강도에 영향이 없는 몸체부위에 생성되도록 하는 구조의 음식물용 플라스틱재 4각 밀폐 용기를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above problems, and its object is to induce the flow of the plastic melt smoothly and evenly in all directions during the injection molding production, and to avoid the hinge portion where the weld line repeatedly acts as a bending stress. It is to provide a four-season sealed container for food plastics of the structure to be generated on the body portion does not affect.
상기한 목적을 달성하기 위하여 본 발명은 일변이 다른변보다 길이가 긴 4각형의 용기본체와; 그 용기본체 상부로 4면에 각각 1개 또는 2개씩 돌출 형성하되 적어도 길이가 긴 변에는 서로 간격을 두고 2개가 성형되는 복수개의 잠금돌기와; 그 각각의 잠금돌기에 끼워져 잠금하는 잠금구멍이 잠금돌기에 대항되는 위치마다에 형성된 잠금날개부와, 그 잠금날개부가 힌지에 의해 회동가능하게 연결된 상부 덮개편으로 구성된 뚜껑과;The present invention in order to achieve the above object is a four-sided container body of one side longer than the other side; A plurality of locking protrusions protruding from the top of the container body on one or two sides of the container body, each of which is formed on at least one long side of the container body at intervals from each other; A lid composed of a locking blade portion formed at each position of the locking hole inserted into each of the locking projections and opposed to the locking projection, and an upper cover piece which is rotatably connected by the hinge;
상기 뚜껑의 상부덮개편에 장착되어 용기 본체를 밀폐하는 패킹; 을 포함하여 구성되는 음식물용 플라스틱재 4각 밀폐용기에 있어서,A packing attached to the upper cover piece of the lid to seal the container body; In the food plastic four-sided closed container configured to include,
상기 잠금날개부의 좌우 2개소에 형성된 잠금구멍의 사이에는 잠금구멍과의 사이에 협곡부를 형성하는 용융액 흐름 차단공을 구비하므로써 사출 성형시 플라스틱 용융액이 용융액 흐름 차단공을 우회하여 양측 협곡부로 흐르도록 유도되는 것을 특징으로 한다.By providing a melt flow blocking hole that forms a gorge between the locking hole between the locking holes formed at the left and right two places of the locking wing portion, the plastic melt flows into both gorges by bypassing the melt flow blocking hole during injection molding. It is characterized by.
이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명에 의한 음식물용 플라스틱재 4각 밀폐용기의 뚜껑을 나타낸 도면이며, 도 2는 본 발명에 의한 동상 뚜껑의 단면도이고, 도 3은 본 발명의 뚜껑이 용기본체를 밀폐시킨 상태의 4각 밀폐 용기를 나타내는 도면이다.1 is a view showing a lid of a plastic four-sealing container for food according to the present invention, Figure 2 is a cross-sectional view of the in-phase lid according to the present invention, Figure 3 is a state in which the lid of the present invention sealed the container body It is a figure which shows a quadrangular sealed container.
도면에 있어서 부호 1은 본 발명의 사각 밀폐용기로서 뚜껑(2)과 용기본체(3)로 구성된다.In the drawings, reference numeral 1 is a rectangular airtight container of the present invention, and includes a lid 2 and a container body 3.
용기본체(3)는 한변의 길이가 다른변보다 긴 4각 단면 형상이며, 뚜껑(2)과 용기본체(3)는 플라스틱재(실리콘을 포함)로 사출성형에 의해 제조된다.The container body 3 has a quadrilateral cross-sectional shape of one side longer than the other side, and the lid 2 and the container body 3 are manufactured by injection molding from a plastic material (including silicon).
뚜껑(2)은 상부덮개면(4)과, 그 상부덮개면(4)으로부터 각각 사방으로 연장되는 잠금날개편(5)으로 구성되며, 잠금날개편(4)은 다른 부분에 비해 두께가 매우 얇은 힌지부(6)에 의해 상부덮개면(4)과 연결되는 구조로 되어 있어 잠금날개편(5)이 힌지부(6)에 의해 회동 움직임이 허용된다.The lid 2 is composed of an upper lid surface 4 and a locking blade piece 5 extending in all directions from the upper lid surface 4, and the locking wing piece 4 is very thick compared to other parts. It is structured to be connected to the upper cover surface 4 by the thin hinge portion 6, the locking wing piece 5 is allowed to rotate by the hinge portion (6).
또 잠금날개편(5)에는 잠금구멍(7a)(7b)(대표하여 나타낼때는 부호 7로 표시한다)이 형성되어 있으며, 이 잠금구멍(7)은 폭(b)에 비해 길이(ℓ)가 긴 형태로 되어 있다.In addition, the lock wing piece 5 is provided with lock holes 7a and 7b (represented by reference numeral 7 when represented), and the lock hole 7 has a length ℓ compared to the width b. It is in long form.
그리고 잠금구멍(7)은 용기의 길이가 긴 변에는 적어도 잠금날개편(5)의 양측으로 2개(7a)(7b)가 형성되며, 그 2개의 잠금구멍(7a)(7b) 사이에는 용융액 흐름차단공(8)이 형성되어 있다.The lock holes 7 are formed at least on the sides of the lock wing piece 5 at least on the sides of the container with a long length of the container, and the molten liquid is formed between the two lock holes 7a and 7b. The flow blocking hole 8 is formed.
이 용융액 흐름 차단공(8)과 그의 양측에 위치하는 잠금구멍(7a)(7b) 사이에는 협곡부(9a)(9b)가 형성된다.Gorges 9a and 9b are formed between the melt flow blocking hole 8 and the locking holes 7a and 7b located on both sides thereof.
그리고 이 잠금구멍(7a)(7b)들에 대향되는 위치인 용기본체(3)의 상단의 사방면에는 각각 잠금돌기(10a)(10b)(대표하여 나타낼때는 부호 10으로 표시)가 돌출되도록 형성되어 있다.In addition, the locking projections 10a and 10b (represented by reference numeral 10 when represented) are projected on all four sides of the upper end of the container body 3 at positions opposite to the locking holes 7a and 7b. It is.
이에따라 잠금날개편(5)을 잠금돌기(10)쪽으로 눌러 붙이게 되면, 잠금구멍(7)이 잠금돌기(10)에 끼워져 뚜껑(2)이 용기본체(3)에 장착되며, 뚜껑(2)이 잠금 장착된 상태에서 요홈(11)에 끼워진 패킹(12)이 용기본체(3)의 상단 테두리(13)에 의해 눌려져 용기본체(3) 내부(14)를 밀폐하게 된다.Accordingly, when the locking wing piece 5 is pressed against the locking protrusion 10, the locking hole 7 is fitted into the locking protrusion 10 so that the lid 2 is mounted on the container body 3, and the lid 2 is closed. The packing 12 fitted in the recess 11 in the locked state is pressed by the upper edge 13 of the container body 3 to seal the interior 14 of the container body 3.
이와같은 본 발명은 뚜껑(2)의 잠금날개편(5)에 종래와 달리 용융액 흐름 차단공(8)이 형성되어 있고, 또 그에 따라 협곡부(9a)(9b)가 형성되기 때문에 금형에 의해 사출성형할 때 다음과 같은 작용을 하게 된다.In the present invention as described above, since the melt flow blocking hole 8 is formed in the locking wing piece 5 of the lid 2, and the valley portions 9a and 9b are formed accordingly, it is formed by a mold. When injection molding, the following functions are performed.
도시하지 아니한 금형에는 뚜껑(2)과 동일한 형상이 캐비티로 형성되고, 뚜껑(2)의 중앙 위치인 금형에 형성되는 용융액주입게이트(15)를 통해 플라스틱 용융물이 주입되면 4방으로 용융수지가 퍼져나가게 된다.In the mold (not shown), the same shape as that of the lid 2 is formed as a cavity, and when the plastic melt is injected through the melt injection gate 15 formed in the mold, which is the central position of the lid 2, the molten resin is spread in four directions. Will go out.
이때 용융액주입게이트(15)로부터 퍼져나가는 용융액이 상기 게이트(15)로부터 가장 가까운 용융액 흐름 차단공(8)에 이르면 그 차단공(8)에 막혀 차단공(8)을 우회하여 흐름이 일어나게 되는데, 그 차단공(8) 양쪽은 잠금구멍(7a)(7b)과 좁은 협곡부(9a)(9b)를 형성하고 있어 용융액이 흐름이 원활치 아니하며, 그 협곡부(9)를 지나면 넓은 면적의 누름부위(5a, 뚜껑을 닫을 때 손으로 누르게 되는 부분)가 나타나게 되며, 그 누름부위(5a)를 용융액이 채우고 잠금날개편(5)의 양단(5b)으로 흘러가는데 시간이 필요하게 된다.At this time, when the melt spreading from the melt injection gate 15 reaches the melt flow blocking hole 8 closest to the gate 15, the block is blocked by the blocking hole 8 to bypass the blocking hole 8 and flow occurs. Both of the blocking holes 8 form locking holes 7a, 7b and narrow canyons 9a, 9b, so that the melt does not flow smoothly. (5a, the part to be pressed by hand when closing the lid) appears, and it takes time for the pressing part 5a to fill the melt and flow to both ends 5b of the locking wing piece 5.
한편, 중앙의 용융액주입게이트(15)로부터 잠금날개편(5)의 양단부(5b)(5b)까지는 용융액 차단 흐름공(8)까지의 거리보다 멀기는 하나 협곡부(9a)(9b)를 통과할 때 용융액의 흐름이 지체되므로 협곡부(9a)(9b)와 양단부(5b)(5b)를 통과한 용융액은 도시한 것과 같이 부호 16 부위에서 충돌하여 만나게 되므로써 웰드 라인(17)(17)이 종래와 달리 힌지(6)의 양끝단(6a)(6a)을 피하여 부호 16 부위에 형성되어지게 되는 것이다. 이와같이 하여 웰드 라인(17)이 힌지부(7)의 양단 위치(6a)(6a)로부터 이동하여 부호 16 부위에 형성되면, 잠금날개편(5)을 뚜껑(2)의 장착을 위하여 장시간 굽혔다 폈다를 반복하더라도 힌지부(6)가 쉽게 파손되지 아니하고 설계 수명을 유지할 수 있게 된다. On the other hand, the ends 5b and 5b of the locking wing piece 5 from the central melt injection gate 15 pass through the valley portions 9a and 9b, although they are farther than the distance to the melt blocking flow hole 8. When the flow of the molten liquid is delayed, the molten liquid passing through the gorges 9a and 9b and the both ends 5b and 5b collides and meets at the 16 sites as shown in the drawing so that the weld lines 17 and 17 can meet. Unlike the prior art, the ends 6a and 6a of the hinge 6 are avoided and are formed at the 16 sites. In this way, when the weld line 17 moves from the both ends 6a and 6a of the hinge part 7, and is formed in 16 site | parts, the lock wing piece 5 was bent and extended for the attachment of the lid 2 for a long time. Even if repeated, the hinge portion 6 is not easily damaged and can maintain the design life.
한편, 용융액 흐름 차단공(8)은 폭에 비해 길이를 길게 형성하며, 또 힌지라인(6)을 따라 형성하게 되면, 힌지부(6)의 전체 길이를 단축시켜 잠금날개편(5)에 작용하는 탄발력을 감소시켜 뚜껑의 장착을 쉽게하고, 힌지부(6)에의 잔류 응력을 감소시켜 가장 취약한 힌지부(6)의 굽힘에 의한 손상을 줄여주게 된다.On the other hand, the melt flow blocking hole 8 is formed longer than the width, and when formed along the hinge line 6, the overall length of the hinge portion 6 is shortened to act on the lock wing piece (5). It is possible to reduce the elasticity to facilitate the mounting of the lid, to reduce the residual stress on the hinge portion 6 to reduce the damage caused by the bending of the most vulnerable hinge (6).
또 도 3에 도시한 것과 같이 뚜껑(2)의 상부덮개면(4)에는 외곽을 따라 표면보다 약간 함몰시킨 부분에 부식처리부(18)를 두므로써, 용기의 적층보관 및 수송시 용기본체(3) 바닥에 돌출된 지지돌기(19)가 그 부식처리부(18)에 닿도록 적층시키므로서 용기간의 접촉에 따른 뚜껑에의 흠집 발생을 방지하게 되며, 부식처리부(18)는 금형에 샌드블라스트와 같은 방법으로 모래를 분사하여 미세한 흠집을 주므로써 사출성형시 해당 표면이 거칠거칠한 불투명으로 형성되기 때문에 매끄러운 투명 부분에 비해 긁힘등의 발생이 잘 일어나지 아니하며, 긁히더라도 그 표시가 잘 드러나지 아니한다.In addition, as shown in Figure 3, the upper cover surface 4 of the lid (2) by placing the corrosion treatment portion 18 in a portion slightly recessed from the surface along the outer surface, the container body (3) ) The support protrusion 19 protruding from the bottom is laminated so as to contact the corrosion treatment portion 18 to prevent the occurrence of scratches on the lid due to the contact between the containers, the corrosion treatment portion 18 is sandblasted to the mold By spraying sand with fine scratches, the surface is formed roughly opaque during injection molding, so scratches are less likely to occur than smooth transparent parts, and the markings are not easily revealed even when scratched.
이상과 같은 본 발명은 플라스틱재 4각 밀폐용기의 잠금날개편에 형성된 2개의 잠금구멍 사이로 용융액 흐름 차단공을 형성하여 협곡부를 만드는 것에 의해서, 실리콘이나 특수합성수지등의 프라스틱 용융물을 금형에 주입하여 사출해 낼때 용융물의 이동시간의 변화를 가져와 웰드 라인이 얇고 취약하며 반복되는 굽힘 응력을 받는 힌지부를 비켜 형성되기 때문에 용기 뚜껑이 사용중 파손되는 일이 없이 설계 수명대로 사용될 수 있어 소비자 불만을 해소할 수 있으며, 또 힌지부에의 잔류 응력을 감소시켜 사용 수명을 연장시키게 되는 효과가 있다.The present invention as described above is formed by injecting a melt flow-blocking hole between the two locking holes formed in the lock wing piece of the plastic four-sealing container to form a canyon, injecting a plastic melt such as silicone or special synthetic resin into the mold As the weld line is formed by a thin, fragile, and repeated bending stress, the hinge part, which changes the movement time of the melt, can be used for the design life without damaging the container lid, thereby eliminating consumer complaints. In addition, there is an effect of extending the service life by reducing the residual stress in the hinge portion.
도 1은 본 발명에 의한 음식물용 플라스틱재 4각 밀폐 용기의 뚜껑을 나타내는 도면1 is a view showing the lid of the plastic four-season closed container for food according to the present invention
도 2는 동상 뚜껑의 단면도2 is a cross-sectional view of the statue lid
도 3은 본 발명에 의한 뚜껑과 용기본체를 조립하여 체결한 4각 밀폐 용기를 나타내는 도면Figure 3 is a view showing a quadrangular sealed container assembled by assembling the lid and the container body according to the present invention
도 4 내지 도 6은 종래의 4각 밀폐 용기를 나타내는 도면4 to 6 is a view showing a conventional quadrangular sealed container
※도면의 주요 부분에 대한 부호의 설명※ Explanation of code for main part of drawing
1 : 4각 밀폐 용기 2 : 뚜껑1: square sealed container 2: lid
3 : 용기본체 4 : 상부덮개면3: container body 4: upper cover surface
5 : 잠금날개편 6 : 힌지부5: locking wing piece 6: hinge part
7 : 잠금구멍 8 : 차단공7: locking hole 8: blocking hole
9 : 협곡부 10 : 잠금돌기9: canyon 10: locking projection
11: 요홈 12 : 패킹11: groove 12: packing
13 : 테두리부 14 : 내부공간13: border 14: interior space
15 : 용융액주입게이트 17 : 웰드 라인15: melt injection gate 17: weld line
18 : 부식처리부 19 : 지지돌기18: corrosion treatment 19: support protrusion
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020030074940A KR20050039471A (en) | 2003-10-25 | 2003-10-25 | Airtight container for food |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020030074940A KR20050039471A (en) | 2003-10-25 | 2003-10-25 | Airtight container for food |
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| Publication Number | Publication Date |
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| KR20050039471A true KR20050039471A (en) | 2005-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020030074940A KR20050039471A (en) | 2003-10-25 | 2003-10-25 | Airtight container for food |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10589905B2 (en) | 2017-05-17 | 2020-03-17 | Soo Jung WANG | Airtight container |
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2003
- 2003-10-25 KR KR1020030074940A patent/KR20050039471A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10589905B2 (en) | 2017-05-17 | 2020-03-17 | Soo Jung WANG | Airtight container |
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