JP6715580B2 - Container mouth structure and container - Google Patents
Container mouth structure and container Download PDFInfo
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- JP6715580B2 JP6715580B2 JP2015146900A JP2015146900A JP6715580B2 JP 6715580 B2 JP6715580 B2 JP 6715580B2 JP 2015146900 A JP2015146900 A JP 2015146900A JP 2015146900 A JP2015146900 A JP 2015146900A JP 6715580 B2 JP6715580 B2 JP 6715580B2
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- outer peripheral
- peripheral portion
- cylindrical portion
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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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Closures For Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Description
本発明は、容器口部構造及び容器に係り、より詳細には、蓋体と嵌合する合成樹脂製の容器本体の容器口部構造、及び、かかる容器口部構造を有する容器本体と蓋体とから構成された容器に関する。 The present invention relates to a container mouth structure and a container, and more particularly to a container mouth structure of a container body made of a synthetic resin that fits with a lid body, and a container body and a lid body having such a container mouth structure. And a container constructed from.
近年、食品等の内容物を充填、密封したボトル形状の合成樹脂製の容器であって、開栓後に再び密封可能なものが広く利用されている。そのような容器の一例が、下記の特許文献１に記載されている。 2. Description of the Related Art In recent years, bottle-shaped synthetic resin containers filled and sealed with contents such as foods, which can be sealed again after being opened, are widely used. An example of such a container is described in Patent Document 1 below.
図５に、従来例の容器の要部断面図を示す。図５に示す容器１００ｂは、合成樹脂製の容器本体１０１と、この容器本体１０１と嵌合した蓋体１０２とから構成され、蓋体１０２は、中栓１０３と、中栓１０３にヒンジ１０５を介して開閉自在に連結した上蓋１０４とから構成されている。 FIG. 5 shows a sectional view of a main part of a conventional container. The container 100b shown in FIG. 5 includes a container body 101 made of synthetic resin and a lid 102 fitted to the container body 101. The lid 102 has an inner plug 103 and a hinge 105 attached to the inner plug 103. It is composed of an upper lid 104 which is openably and closably connected via the above.
容器１００ｂの開栓の際には、中栓１０３のプルリング１３０を引っ張ることにより、仕切り部１３１の中央のスコア１３１ａに囲まれた開栓部分１３１ｂが除去され、中栓１０３が開口する。また、開栓部分１３１ｂの除去後も、上蓋１０４を閉じることにより、容器１００ｂを再び密封することができる。上蓋１０４を閉じると、上蓋１０４の天板部１４１の周囲から下方に延びる周壁部１４２と、中栓１０３の環状係止部１３２とが係合するとともに、天板部１４１から下方に延びるインナーリング１４３と、中栓１０３の仕切り部１３１から上方に延びる注出筒１３３とが全周に亘って密接する。 When the container 100b is opened, by pulling the pull ring 130 of the inner stopper 103, the opened portion 131b surrounded by the score 131a in the center of the partition 131 is removed and the inner stopper 103 is opened. Further, even after the removal of the plug opening portion 131b, the container 100b can be sealed again by closing the upper lid 104. When the upper lid 104 is closed, the peripheral wall portion 142 extending downward from the periphery of the top plate portion 141 of the upper lid 104 and the annular locking portion 132 of the inner plug 103 are engaged, and the inner ring extending downward from the top plate portion 141. 143 and the spout cylinder 133 extending upward from the partition 131 of the inner plug 103 are in close contact with each other over the entire circumference.
蓋体１０２は、容器本体１０１に打ち込まれて嵌合し、蓋体１０２の中栓１０３の仕切り部１３１から下方に延びる外円筒部１３４と内円筒部１３５との間の環状溝１３６に、容器本体１０１の容器口部１１０が嵌入する。容器口部１１０は、開口端１１０ａの直近に、容器口部１１０の外周側へ張り出した外周部１１１を有し、この外周部１１１が、中栓１０３の外円筒部１３４の内面１３４ａに形成された突起部（アンダーカット）１３４ｂと係合する。これにより、外周部１１１が外円筒部１３４に係止され、嵌合状態が保持される。 The lid body 102 is driven into the container body 101 and fitted therein, and is fitted into an annular groove 136 between an outer cylindrical portion 134 and an inner cylindrical portion 135 extending downward from the partition portion 131 of the inner plug 103 of the lid body 102. The container opening 110 of the main body 101 is fitted. The container mouth portion 110 has an outer peripheral portion 111 projecting to the outer peripheral side of the container mouth portion 110 in the immediate vicinity of the opening end 110a, and the outer peripheral portion 111 is formed on the inner surface 134a of the outer cylindrical portion 134 of the inner plug 103. Engaged with the protruding portion (undercut) 134b. As a result, the outer peripheral portion 111 is locked to the outer cylindrical portion 134, and the fitted state is maintained.
容器口部１１０の外周部１１１の下側には、容器口部１１０の内周側に張り出した内周部１１２が形成されている。容器口部１１０が蓋体１０２の環状溝１３６に嵌入すると、この内周部１１２が内円筒部１３５の外面１３５ａを全周で押圧し、外面１３５ａの全周と密接する。この密接した部分がシール部（Ｓ）を形成し、容器１００ｂが密封される。なお、図５では、容器口部１１０及び内円筒部１３５を互いに重ねて図示している。 An inner peripheral portion 112 that projects toward the inner peripheral side of the container mouth portion 110 is formed below the outer peripheral portion 111 of the container mouth portion 110. When the container mouth portion 110 is fitted into the annular groove 136 of the lid body 102, the inner peripheral portion 112 presses the outer surface 135a of the inner cylindrical portion 135 over the entire circumference and comes into close contact with the entire outer surface 135a. This close contact portion forms a seal portion (S), and the container 100b is sealed. Note that, in FIG. 5, the container opening 110 and the inner cylindrical portion 135 are shown in an overlapping manner.
かかる容器に食品等の内容物を充填、密封する際には、通常、容器本体に、例えば７０℃近い温度に加熱した内容物を充填した後、容器本体の容器口部に蓋体を打ち込んで嵌合させて密封し、続いて、容器を転倒させて容器口部内を内容物で満たすことにより、ヘッドスペースとなる容器口部内及び蓋体内面をも加熱殺菌している。 When filling and sealing the contents such as foods in such a container, normally, after filling the container body with the contents heated to a temperature of, for example, about 70° C., the lid body is driven into the container mouth portion of the container body. The container is fitted and sealed, and then the container is turned over to fill the inside of the container mouth with the contents, so that the inside of the container mouth that serves as a head space and the inner surface of the lid are also sterilized by heating.
ところで、図５に示した従来例では、シール部を形成する内周部１１２よりも環状溝１３６の奥に位置する外周部１１１だけが、突起部（アンダーカット）１３４ｂによって係止されている。このため、内容物充填後の容器に対して強い衝撃が加わった場合、蓋体の内円筒部１３５を押圧してシール部（Ｓ）を形成している内周部１１２の位置が環状溝１３６内で一時的にずれるおそれがある。その結果、容器口部が一時的に変形し、シール部（Ｓ）の密封性が低下する可能性がある。このため、容器が強い衝撃を受けた場合においても、更に高い密封性を確保することができる容器の開発が望まれていた。 By the way, in the conventional example shown in FIG. 5, only the outer peripheral portion 111 located at the inner side of the annular groove 136 with respect to the inner peripheral portion 112 forming the seal portion is locked by the protrusion (undercut) 134b. Therefore, when a strong impact is applied to the container after filling the contents, the position of the inner peripheral portion 112 that presses the inner cylindrical portion 135 of the lid and forms the seal portion (S) is the annular groove 136. There is a risk that it will temporarily shift within. As a result, the container mouth may be temporarily deformed, and the sealing performance of the seal part (S) may be reduced. Therefore, there has been a demand for the development of a container capable of ensuring a higher sealing property even when the container receives a strong impact.
また、加熱殺菌を徹底して食品の安全性をより向上させるためには、容器に充填される内容物の加熱温度をより高くすることが望ましい。しかし、より高温（例えば８０℃近い温度）に加熱された内容物を充填、密封すると、内容物冷却後の容器内外の圧力差がより大きくなり、容器が強い衝撃を受けた場合、シール部（Ｓ）の密封性が低下する可能性が更に大きくなる。このため、より高温の内容物を充填した場合においても密封性を確保することができる容器の開発が望まれていた。 Further, in order to thoroughly perform heat sterilization and further improve food safety, it is desirable to raise the heating temperature of the contents filled in the container. However, when the contents heated to a higher temperature (for example, a temperature close to 80° C.) are filled and sealed, the pressure difference between the inside and the outside of the container after the contents are cooled becomes larger, and when the container receives a strong impact, the sealing part ( The possibility that the sealing property of S) will deteriorate further increases. Therefore, there has been a demand for the development of a container capable of ensuring hermeticity even when the contents of higher temperature are filled.
本発明は、上記の事情に鑑みてなされたものであり、容器が強い衝撃を受けた場合、更に高温の内容物を充填した場合でも、より高い密封性を確保することができる容器口部構造及び容器の提供を目的としている。 The present invention has been made in view of the above circumstances, and a container mouth structure capable of ensuring a higher sealing property even when the container is subjected to a strong impact or is filled with contents of higher temperature. And to provide containers.
上記の目的を達成するために、本発明の容器口部構造は、内面突起部付き外円筒部及び内円筒部を有する蓋体が合成樹脂製のダイレクトブロー成形された容器本体に打ち込まれて容器本体と嵌合したときに前記蓋体の前記外円筒部と前記内円筒部との間の環状溝に嵌入する前記容器本体の容器口部の構造であって、前記容器口部の開口端側から順に、前記外円筒部の内面と当接するように、前記容器口部の外周側へ張り出した第１外周部と、前記内円筒部の外面の全周と密接してシール部を形成するように、前記容器口部の内周側に張り出した内周部と、前記外円筒部の内面と当接するように、前記容器口部の外周側に張り出した第２外周部とを有し、前記第２外周部は、前記外円筒部の前記内面の第１突起部と係合するように、前記開口端側の反対側に段差部を有し、前記内周部が前記内円筒部の外面を押圧するように、前記第１外周部から前記内周部を経て前記第２外周部へ至る部分が、前記容器口部の中心軸線を含む断面において、前記容器口部の内周側へ湾曲した湾曲形状を有することを特徴としている。
In order to achieve the above object, the container mouth structure of the present invention is a container in which a lid body having an outer cylindrical portion with an inner surface protrusion and an inner cylindrical portion is driven into a direct blow molded container body made of synthetic resin. A structure of a container mouth portion of the container body, which is fitted into an annular groove between the outer cylindrical portion and the inner cylindrical portion of the lid body when fitted to the body, the opening end side of the container mouth portion In order from the above, the first outer peripheral portion protruding toward the outer peripheral side of the container mouth portion and the entire outer peripheral surface of the inner cylindrical portion are in close contact with each other so as to contact the inner surface of the outer cylindrical portion to form a seal portion. In, having an inner peripheral portion protruding to the inner peripheral side of the container mouth, and a second outer peripheral portion protruding to the outer peripheral side of the container mouth so as to contact the inner surface of the outer cylindrical portion, The second outer peripheral portion has a step portion on the opposite side to the opening end side so as to engage with the first protrusion portion of the inner surface of the outer cylindrical portion, and the inner peripheral portion has an outer surface of the inner cylindrical portion. So that the portion from the first outer peripheral portion through the inner peripheral portion to the second outer peripheral portion is curved toward the inner peripheral side of the container mouth portion in a cross section including the central axis of the container mouth portion. It is characterized by having a curved shape.
このように、本発明の容器口部構造によれば、第１外周部から内周部を経て第２外周部へ至る容器口部の部分の断面が、容器口部の内周側へ湾曲した湾曲形状（例えば、Ｕ字形状、Ｃ字形状、又はＶ字形状）を有している。そして、容器口部が蓋体の外円筒部と内円筒部との間の環状溝に嵌入すると、容器口部の第１及び第２外周部の２カ所が蓋体の外円筒部に内接して実質的に固定され、さらに、その２カ所の間の湾曲形状の頂部に位置する内周部が蓋体の内円筒部を強く押圧して３点で固定されるため、シール部の高い密封性を確保することができる。 Thus, according to the container mouth portion structure of the present invention, the cross section of the portion of the container mouth portion from the first outer peripheral portion to the second outer peripheral portion via the inner peripheral portion is curved toward the inner peripheral side of the container mouth portion. It has a curved shape (for example, a U shape, a C shape, or a V shape). Then, when the container mouth portion is fitted into the annular groove between the outer cylindrical portion and the inner cylindrical portion of the lid body, the two locations of the first and second outer peripheral portions of the container mouth portion are inscribed in the outer cylindrical portion of the lid body. And the inner peripheral part located at the curved top between the two places strongly presses the inner cylindrical part of the lid and is fixed at three points, resulting in a high sealing of the seal part. It is possible to secure the sex.
そのうえ、容器口部を環状溝に嵌入したときに、シール部を形成する内周部よりも環状溝の浅い位置に位置する第２外周部の段差部が外円筒部の内面の内面突起部（アンダーカット）と係合し、第２外周部がこの内面突起部で係止される。このため、容器が衝撃を受けた場合においても、第２外周部が環状溝から出る方向へ移動することが阻止され、蓋体のがたつきの発生が防止される。その結果、衝撃時においても、３点固定が維持され、シール部を形成する内周部が蓋体の内円筒部に強く押圧され続けるため、シール部の高い密封性を確保することができる。 Moreover, when the container mouth portion is fitted into the annular groove, the step portion of the second outer peripheral portion located at a position shallower than the inner peripheral portion forming the seal portion is the inner surface protrusion portion of the inner surface of the outer cylindrical portion ( Undercut), and the second outer peripheral portion is locked by this inner surface protrusion. Therefore, even when the container receives an impact, the second outer peripheral portion is prevented from moving in the direction out of the annular groove, and rattling of the lid is prevented. As a result, even at the time of impact, the three-point fixation is maintained, and the inner peripheral portion forming the seal portion continues to be strongly pressed by the inner cylindrical portion of the lid, so that high sealing performance of the seal portion can be ensured.
さらに、本発明の容器口部構造によれば、嵌入時にシール部を形成する内周部が蓋体の内円筒部に強く押圧される。このため、より高温（例えば８０℃近い温度）の内容物の充填、冷却後に容器内外の圧力差が大きくなった場合においてもシール部の密封性を確保することができる。
このように、本発明によれば、嵌入時に内周部と内円筒部との密接部に形成されるシール部の高い密封性を確保することができる。
Further, according to the container mouth structure of the present invention, the inner peripheral portion forming the seal portion at the time of fitting is strongly pressed against the inner cylindrical portion of the lid. Therefore, even if the pressure difference between the inside and outside of the container becomes large after filling and cooling the contents at a higher temperature (for example, a temperature near 80° C.), the sealing property of the seal portion can be secured.
As described above, according to the present invention, it is possible to secure high sealing performance of the seal portion formed in the close contact portion between the inner peripheral portion and the inner cylindrical portion at the time of fitting.
また、本発明の容器は、合成樹脂製のダイレクトブロー成形された容器本体と前記容器本体に打ち込まれて前記容器本体と嵌合した蓋体とから構成された容器であって、前記蓋体は、外円筒部と内円筒部とを有し、かつ前記外円筒部の内面に第１突起部を有し、前記容器本体は、前記蓋体の前記外円筒部と前記内円筒部との間の環状溝に嵌入した容器口部を有し、前記容器口部は、開口端側から順に、前記容器口部の外周側へ張り出し、前記外円筒部の内面と当接した第１外周部と、前記容器口部の内周側に張り出した、前記内円筒部の外面の全周と密接してシール部を形成する内周部と、前記容器口部の外周側に張り出し、嵌入時に前記外円筒部の内面と当接した第２外周部とを有し、前記第２外周部は、前記開口端側の反対側に、前記第１突起部と係合した段差部を有し、前記内周部が前記内円筒部の外面を押圧するように、前記第１外周部から前記内周部を経て前記第２外周部へ至る前記容器口部の部分が、前記容器口部の中心軸線を含む断面において、前記容器口部の内周側へ湾曲した湾曲形状を有することを特徴としている。 Further, the container of the present invention is a container composed of a synthetic resin direct blow molded container body and a lid body that is driven into the container body and fitted with the container body, wherein the lid body is An outer cylinder part and an inner cylinder part, and a first protrusion on the inner surface of the outer cylinder part, wherein the container body is between the outer cylinder part and the inner cylinder part of the lid. Of the container mouth portion fitted into the annular groove, the container mouth portion, in order from the opening end side, overhangs to the outer peripheral side of the container mouth portion, the first outer peripheral portion abutting the inner surface of the outer cylindrical portion and An inner peripheral portion that protrudes toward the inner peripheral side of the container mouth portion and forms a seal portion in close contact with the entire outer surface of the inner cylindrical portion, and an outer peripheral side of the container mouth portion that protrudes into the outer periphery when fitted. A second outer peripheral portion in contact with the inner surface of the cylindrical portion, the second outer peripheral portion having a step portion engaged with the first protrusion on the side opposite to the opening end side, The portion of the container mouth portion extending from the first outer peripheral portion to the second outer peripheral portion through the inner peripheral portion so that the peripheral portion presses the outer surface of the inner cylindrical portion is the central axis of the container mouth portion. It is characterized by having a curved shape that is curved toward the inner peripheral side of the container mouth portion in the included cross section.
本発明の容器によれば、第１外周部から内周部を経て第２外周部へ至る容器口部の部分の断面が、容器口部の内周側へ湾曲した湾曲形状（例えば、Ｕ字形状、Ｃ字形状、又はＶ字形状）を有している。このため、蓋体の外円筒部に内接した第１及び第２外周部の２カ所を固定し、その２カ所の間の湾曲形状の部分の頂部に位置する内周部が蓋体の内円筒部を強く押圧して３点で固定されるため、シール部の高い密封性を確保することができる。 According to the container of the present invention, the cross section of the portion of the container mouth portion from the first outer peripheral portion to the second outer peripheral portion through the inner peripheral portion is curved toward the inner peripheral side of the container mouth portion (for example, U shape). Shape, C-shape, or V-shape). For this reason, the first and second outer peripheral portions inscribed in the outer cylindrical portion of the lid are fixed at two locations, and the inner circumferential portion located at the top of the curved portion between the two locations is the inner portion of the lid. Since the cylindrical portion is strongly pressed and fixed at three points, high sealing performance of the seal portion can be ensured.
そのうえ、シール部を形成する内周部よりも環状溝の浅い位置に位置する第２外周部の段差部が蓋体の外円筒部の内面の第１突起部（アンダーカット）と係合し、第２外周部が第１突起部によって係止されている。このため、容器が衝撃を受けた場合においても、第２外周部が環状溝から出る方向へ移動することが阻止され、蓋体のがたつきの発生が防止される。その結果、衝撃時においても、３点固定が維持され、シール部を形成する内周部が蓋体の内円筒部に強く押圧され続けるため、シール部の高い密封性を確保することができる。 Moreover, the step portion of the second outer peripheral portion located at a position shallower than the inner peripheral portion forming the seal portion engages with the first protrusion portion (undercut) of the inner surface of the outer cylindrical portion of the lid, The second outer peripheral portion is locked by the first protrusion. Therefore, even when the container receives an impact, the second outer peripheral portion is prevented from moving in the direction out of the annular groove, and rattling of the lid is prevented. As a result, even at the time of impact, the three-point fixation is maintained, and the inner peripheral portion forming the seal portion continues to be strongly pressed by the inner cylindrical portion of the lid, so that high sealing performance of the seal portion can be ensured.
さらに、本発明の容器によれば、容器口部の湾曲形状の頂部に位置する内周部が蓋体の内円筒部に強く押圧されているため、より高温（例えば８０℃近い温度）の内容物の充填、冷却後に容器内外の圧力差が大きくなった場合においてもシール部の密封性を確保することができる。 Further, according to the container of the present invention, the inner peripheral portion located at the top of the curved shape of the container mouth is strongly pressed by the inner cylindrical portion of the lid, so that the content at a higher temperature (for example, a temperature near 80° C.) Even if the pressure difference between the inside and the outside of the container becomes large after filling and cooling the object, the sealing property of the seal portion can be ensured.
また、本発明に好ましくは、蓋体は、前記外円筒部の内面に、前記第２外周部に対して、前記開口端側から係合する第２突起部を有するのがよい。 Further, in the present invention, it is preferable that the lid body has a second protrusion that is engaged with the second outer peripheral portion from the opening end side on the inner surface of the outer cylindrical portion.
これにより、第２外周部が第２突起部によって開口端側から係止される。特に、第２外周部が第１突起部及び第２突起部の両方によって係止されることにより、第２外周部が外円筒部に強固に固定される。このため、容器が衝撃を受けた場合においても、第２外周部の移動が阻止され、蓋体のがたつきの発生が防止される。 As a result, the second outer peripheral portion is locked by the second protrusion from the opening end side. In particular, the second outer peripheral portion is firmly fixed to the outer cylindrical portion by being locked by both the first protruding portion and the second protruding portion. Therefore, even when the container receives an impact, the movement of the second outer peripheral portion is prevented, and the rattling of the lid is prevented.
また、本発明において好ましくは、前記蓋体は、前記外円筒部の内面に、前記第１外周部に対して、前記開口端側から係合する第３突起部を有するのがよい。 Further, in the present invention, it is preferable that the lid body has a third protrusion that is engaged with the first outer peripheral portion from the opening end side on the inner surface of the outer cylindrical portion.
蓋体の外円筒部の内面に、第１外周部に対して、開口端側から係合する第３突起部を設ければ、第１外周部の特に肩部が第３突起部と係合し、第１外周部が第３突起部によって係止される。このため、容器が衝撃を受けた場合においても、第１外周部が環状溝の奥へ移動することが阻止され、蓋体のがたつきの発生が防止される。その結果、衝撃時においても、湾曲形状が維持され、湾曲形状の頂部に位置する内周部が蓋体の内円筒部に強く押圧され続け、シール部の密封性が確保される。 If a third protrusion that engages with the first outer peripheral portion from the opening end side is provided on the inner surface of the outer cylindrical portion of the lid, particularly the shoulder portion of the first outer peripheral portion engages with the third protrusion. Then, the first outer peripheral portion is locked by the third protruding portion. Therefore, even when the container receives an impact, the first outer peripheral portion is prevented from moving to the inner side of the annular groove, and the rattling of the lid is prevented. As a result, even at the time of impact, the curved shape is maintained, the inner peripheral portion located at the top of the curved shape is continuously strongly pressed by the inner cylindrical portion of the lid, and the sealing performance of the seal portion is ensured.
特に、第１外周部が第３突起部によって係止されるとともに、第２外周部の段差部が第１突起部によって係止されていれば、衝撃時にも、湾曲形状がより強固に維持される。その結果、湾曲形状の頂部に位置する内周部が蓋体の内円筒部に強く押圧され続け、シール部の密封性がより一層確保される。 In particular, if the first outer peripheral portion is locked by the third protruding portion and the step portion of the second outer peripheral portion is locked by the first protruding portion, the curved shape is more firmly maintained even at the time of impact. It As a result, the inner peripheral portion located at the top of the curved shape continues to be strongly pressed by the inner cylindrical portion of the lid, and the sealing performance of the seal portion is further ensured.
また、本発明において好ましくは、前記シール部の少なくとも一部分は、前記容器本体の前記容器口部の前記開口端から２．２５〜５．７０ｍｍ、より好ましくは、３．６５〜４．３５ｍｍの範囲内に形成されるのがよい。 Further, in the present invention, preferably, at least a part of the seal portion is in a range of 2.25 to 5.70 mm, more preferably 3.65 to 4.35 mm from the opening end of the container mouth portion of the container body. It is preferably formed within.
シール部をかかる範囲内に設ければ、蓋体の内円筒部の根元近くで、内周部が内円筒部を押圧することになる。その結果、内周部が内円筒部の先端近くを押圧する場合よりも内円筒部の変形量が小さくなり、容器口部の内周部が蓋体の内円筒部をより強く押圧することとなり、シール部の密封性をより高めることができる。 If the seal portion is provided within such a range, the inner peripheral portion presses the inner cylindrical portion near the base of the inner cylindrical portion of the lid. As a result, the amount of deformation of the inner cylindrical portion is smaller than when the inner peripheral portion presses near the tip of the inner cylindrical portion, and the inner peripheral portion of the container mouth portion presses the inner cylindrical portion of the lid more strongly. The sealability of the seal portion can be further enhanced.
本発明の容器口部構造及び容器によれば、容器が強い衝撃を受けた場合、更に高温の内容物を充填した場合でも、容器口部の内周部と蓋体の内円筒部とが密接した部分に形成されるシール部において高い密封性を確保することができる。 According to the container mouth structure and the container of the present invention, when the container is subjected to a strong impact, and even when the contents of higher temperature are filled, the inner peripheral part of the container mouth and the inner cylindrical part of the lid are in close contact with each other. High sealing performance can be ensured in the seal portion formed in the above-mentioned portion.
以下、図面を参照して本発明の容器口部構造及び容器の実施形態を併せて説明する。
（第１実施形態）
第１実施形態の容器は、ヒンジ式の蓋体と容器本体とから構成されている。
まず、図１を参照して、容器本体の容器口部構造を説明する。図１は、容器口部１０の一部切欠き側面図である。本実施形態における容器本体１は、ポリプロピレン（ＰＰ）又はポリエチレン（ＰＥ）のような合成樹脂材料からダイレクトブロー成形され、容器口部１０は、図１の左側の断面図に示すように、ほぼ一定の肉厚を有している。
Hereinafter, embodiments of the container mouth structure and the container of the present invention will be described together with reference to the drawings.
(First embodiment)
The container of the first embodiment includes a hinge-type lid and a container body.
First, the structure of the container mouth of the container body will be described with reference to FIG. FIG. 1 is a partially cutaway side view of the container mouth 10. The container body 1 in this embodiment is directly blow-molded from a synthetic resin material such as polypropylene (PP) or polyethylene (PE), and the container mouth portion 10 is substantially constant as shown in the sectional view on the left side of FIG. It has a wall thickness of.
容器本体１の容器口部１０には、容器口部１０の開口端１０ａ側から順に、容器口部１０の外周側へ張り出した第１外周部１１と、容器口部１０の内周側に張り出した内周部１３と、容器口部１０の外周側に張り出した第２外周部１２とが設けられている。そして、図１の左側の断面図に示すように、第１外周部１１から内周部１３を経て第２外周部１２へ至る部分（Ｕ）が、容器口部の中心軸線Ａを含む断面において、容器口部１０の内周側へ湾曲した湾曲形状、本実施形態ではＵ字形状を有している。さらに、第２外周部１２には、開口端１０ａ側の反対側に段差部１２ａが形成されている。 In the container mouth portion 10 of the container body 1, a first outer peripheral portion 11 protruding toward the outer peripheral side of the container mouth portion 10 and an inner peripheral side of the container mouth portion 10 in order from the opening end 10a side of the container mouth portion 10. Further, an inner peripheral portion 13 and a second outer peripheral portion 12 projecting to the outer peripheral side of the container mouth portion 10 are provided. Then, as shown in the cross-sectional view on the left side of FIG. 1, a portion (U) from the first outer peripheral portion 11 to the second outer peripheral portion 12 through the inner peripheral portion 13 is a cross section including the central axis A of the container mouth portion. The container mouth 10 has a curved shape that is curved toward the inner peripheral side, which is a U-shape in the present embodiment. Further, a step portion 12a is formed on the second outer peripheral portion 12 on the side opposite to the opening end 10a side.
次に、図２を参照して、容器本体１に打ち込まれて容器本体１と嵌合する蓋体２を示す。図２（ａ）は、開いた状態のヒンジ式の蓋体の上面図であり、図２（ｂ）は図２（ａ）のｂ−ｂ断面図であり、図２（ｃ）は下面図である。 Next, with reference to FIG. 2, the lid body 2 that is driven into the container body 1 and fitted with the container body 1 is shown. 2(a) is a top view of the hinged lid in an opened state, FIG. 2(b) is a bb sectional view of FIG. 2(a), and FIG. 2(c) is a bottom view. Is.
蓋体２は、中栓３と、中栓３にヒンジ５を介して開閉自在に連結した上蓋４とから構成されている。中栓３のプルリング３０を引っ張ることにより、仕切り部３１の中央のスコア３１ａに囲まれた開栓部分３１ｂが除去され、中栓３が開口する。また、上蓋４を閉じると、上蓋４の天板部４１の周囲から下方に延びる周壁部４２と、中栓３の環状係止部３２とが係合するとともに、天板部４１から下方に延びるインナーリング４３の外面と、中栓３の仕切り部３１から上方に延びる注出筒３３の内面とが全周に亘って密接する。したがって、開栓部分３１ｂの除去後も、上蓋４を閉じることにより、容器１００を再び密封することができる。 The lid body 2 includes an inner plug 3 and an upper lid 4 which is openably and closably connected to the inner plug 3 via a hinge 5. By pulling the pull ring 30 of the inner stopper 3, the opening portion 31b surrounded by the score 31a at the center of the partition portion 31 is removed, and the inner stopper 3 is opened. Further, when the upper lid 4 is closed, the peripheral wall portion 42 extending downward from the periphery of the top plate portion 41 of the upper lid 4 and the annular locking portion 32 of the inside plug 3 are engaged with each other and extend downward from the top plate portion 41. The outer surface of the inner ring 43 and the inner surface of the spout cylinder 33 extending upward from the partition 31 of the inner plug 3 are in close contact with each other over the entire circumference. Therefore, the container 100 can be sealed again by closing the upper lid 4 even after the removal of the unsealed portion 31b.
蓋体２の中栓３には、仕切り部３１から下方に延びる外円筒部３４と内円筒部３５とが形成されている。外円筒部３４は内面３４ａに第１突起部（内面突起部）３７を有し、内円筒部３５は外面３５ａに垂下するストレート面を有している。そして、蓋体２が容器本体１に打ち込まれて嵌合する際には、蓋体２の外円筒部３４と内円筒部３５との間の環状溝３６に、容器本体１の容器口部１０が嵌入する。
なお、外円筒部３４は内面３４ａに、第２突起部３８と第３突起部３９とを有することが好ましい。
The inner plug 3 of the lid body 2 is formed with an outer cylindrical portion 34 and an inner cylindrical portion 35 extending downward from the partition portion 31. The outer cylindrical portion 34 has a first protruding portion (inner surface protruding portion) 37 on the inner surface 34a, and the inner cylindrical portion 35 has a straight surface that hangs on the outer surface 35a. Then, when the lid body 2 is driven into the container body 1 and fitted therein, the container mouth portion 10 of the container body 1 is inserted into the annular groove 36 between the outer cylindrical portion 34 and the inner cylindrical portion 35 of the lid body 2. Is inserted.
The outer cylindrical portion 34 preferably has a second protrusion 38 and a third protrusion 39 on the inner surface 34a.
以下、図３を参照して、容器本体１と蓋体２とが嵌合した容器１００を説明する。図３は、本実施形態の容器の要部断面図である。
環状溝３６に嵌入した容器口部１０の第１外周部１１及び第２外周部１２は、蓋体２の外円筒部３４の内面３４aと当接し、かつ、容器口部１０の内周部１３は、内円筒部３５の外面３５aの全周と密接し、その結果、容器口部１０、外円筒部３４及び内円筒部３５が互いに押圧している。
なお、図３では、容器口部１０、外円筒部３４及び内円筒部３５を互いに重ねて図示している。
Hereinafter, the container 100 in which the container body 1 and the lid body 2 are fitted together will be described with reference to FIG. FIG. 3 is a cross-sectional view of a main part of the container of this embodiment.
The first outer peripheral portion 11 and the second outer peripheral portion 12 of the container mouth portion 10 fitted in the annular groove 36 are in contact with the inner surface 34a of the outer cylindrical portion 34 of the lid body 2 and the inner peripheral portion 13 of the container mouth portion 10. Is in close contact with the entire circumference of the outer surface 35a of the inner cylindrical portion 35, and as a result, the container mouth portion 10, the outer cylindrical portion 34, and the inner cylindrical portion 35 are pressed against each other.
In addition, in FIG. 3, the container opening portion 10, the outer cylindrical portion 34, and the inner cylindrical portion 35 are shown in an overlapping manner.
そして、第１外周部１１から内周部１３を経て第２外周部１２へ至る湾曲したＵ字形状の部分（Ｕ）が、内円筒部３５の外面３５ａを強く押圧する。これにより、内周部１３と内円筒部３５との密接部に、密封性の高いシール部（Ｓ）が形成される。 The curved U-shaped portion (U) extending from the first outer peripheral portion 11 to the second outer peripheral portion 12 via the inner peripheral portion 13 strongly presses the outer surface 35 a of the inner cylindrical portion 35. As a result, a seal portion (S) having high hermeticity is formed in the close contact portion between the inner peripheral portion 13 and the inner cylindrical portion 35.
また、第２外周部１２の段差部１２ａが、外円筒部３４の内面３４ａの全周に形成された第１突起部（アンダーカット）３７と係合し、第２外周部１２が開口端１０ａ側の反対側から係止されているため、第２外周部１２は環状溝３６から出る方向（図３の下方向）へ移動することが阻止される。 Further, the step portion 12a of the second outer peripheral portion 12 engages with the first projection portion (undercut) 37 formed on the entire circumference of the inner surface 34a of the outer cylindrical portion 34, and the second outer peripheral portion 12 has the opening end 10a. Since the second outer peripheral portion 12 is locked from the opposite side, the second outer peripheral portion 12 is prevented from moving in the direction out of the annular groove 36 (downward in FIG. 3 ).
第２外周部１２はまた、外円筒部３４の内面３４ａに形成された第２突起部３８とも係合している。これにより、第２外周部１２は開口端１０ａ側からも係止され、第２外周部１２が環状溝３６の奥（図３の上方向）へ移動することも阻止される。
なお、第２突起部３８は、外円筒部３４の全周に亘って連続して設けてもよいし、一部に断続的に設けてもよい。
The second outer peripheral portion 12 also engages with the second protruding portion 38 formed on the inner surface 34 a of the outer cylindrical portion 34. As a result, the second outer peripheral portion 12 is also locked from the opening end 10a side, and the second outer peripheral portion 12 is also prevented from moving to the inner side of the annular groove 36 (upward in FIG. 3).
The second protrusion 38 may be continuously provided over the entire circumference of the outer cylindrical portion 34, or may be intermittently provided at a part thereof.
このように、第２外周部１２が第１突起部３７及び第２突起部３８の両方によって係止されることにより、第２外周部１２が外円筒部３４に強固に固定される。このため、容器１００が衝撃を受けた場合においても、第２外周部１２の移動が阻止され、蓋体２のがたつきの発生が防止される。このように、容器口部１０のうち、シール部（Ｓ）を形成する内周部１３よりも環状溝３６の浅い位置に位置する第２外周部１２が係止されることにより、衝撃時においても、Ｕ字形状の部分（Ｕ）が維持される。その結果、Ｕ字形状の頂部に位置する内周部１３が蓋体２の内円筒部３５に強く押圧され続け、シール部（Ｓ）の密封性が確保される。 In this way, the second outer peripheral portion 12 is firmly fixed to the outer cylindrical portion 34 by being locked by both the first protruding portion 37 and the second protruding portion 38. Therefore, even when the container 100 receives an impact, the movement of the second outer peripheral portion 12 is prevented and the rattling of the lid body 2 is prevented. In this way, the second outer peripheral portion 12 of the container mouth portion 10 located at a position shallower than the inner peripheral portion 13 forming the seal portion (S) is shallower than the inner peripheral portion 13 of the container mouth portion 10 is locked. Also, the U-shaped portion (U) is maintained. As a result, the inner peripheral portion 13 located at the top of the U-shape continues to be strongly pressed by the inner cylindrical portion 35 of the lid body 2, and the sealing performance of the seal portion (S) is ensured.
また、内周部１３が内円筒部３５の外面３５ａを強く押圧し、内周部１３と内円筒部３５との密接部に、密封性の高いシール部（Ｓ）が形成されているため、容器１００により高温（例えば８０℃近い温度）で充填された内容物が冷却した後に、容器１００内外の圧力差が大きくなった場合においても、シール部（Ｓ）の高い密封性を確保することができる。 Further, since the inner peripheral portion 13 strongly presses the outer surface 35a of the inner cylindrical portion 35, and the seal portion (S) having high sealing property is formed in the close contact portion between the inner peripheral portion 13 and the inner cylindrical portion 35, Even if the pressure difference between the inside and the outside of the container 100 becomes large after the contents filled in the container 100 at a high temperature (for example, a temperature close to 80° C.) are cooled, it is possible to ensure high sealing performance of the seal portion (S). it can.
さらに、第１外周部１１も、外円筒部３４の内面３４ａに形成された第３突起部３９と係合することによって、開口端１０ａ側から係止されている。これにより、第１外周部１１が環状溝３６の奥（図３の上方向）へ移動することが阻止される。その結果、容器が衝撃を受けた場合においても、第１外周部１１が環状溝３６の奥へ移動することが阻止され、蓋体２のがたつきの発生が防止される。
なお、第３突起部３９は、外円筒部３４の全周に亘って連続して設けてもよいし、一部に断続的に設けてもよい。
Further, the first outer peripheral portion 11 is also locked from the open end 10a side by engaging with the third protruding portion 39 formed on the inner surface 34a of the outer cylindrical portion 34. This prevents the first outer peripheral portion 11 from moving to the inner side of the annular groove 36 (upward in FIG. 3 ). As a result, even when the container receives an impact, the first outer peripheral portion 11 is prevented from moving into the annular groove 36, and the rattling of the lid 2 is prevented.
The third protruding portion 39 may be provided continuously over the entire circumference of the outer cylindrical portion 34, or may be provided intermittently at a part thereof.
このように、蓋体２の外円筒部３４に内接した第１外周部１１及び第２外周部１２の２カ所が強固に係止され、その２カ所の間のＵ字形状の部分（Ｕ）が蓋体２の内円筒部３５に強く押圧される。その結果、衝撃時においても、Ｕ字形状の部分（Ｕ）が維持され、Ｕ字形状の頂部に位置する内周部１３が蓋体２の内円筒部３５に強く押圧され続け、シール部（Ｓ）の密封性がより一層確保される。 In this way, the first outer peripheral portion 11 and the second outer peripheral portion 12 inscribed in the outer cylindrical portion 34 of the lid body 2 are firmly locked to each other, and a U-shaped portion (U ) Is strongly pressed against the inner cylindrical portion 35 of the lid 2. As a result, even at the time of impact, the U-shaped portion (U) is maintained, the inner peripheral portion 13 located at the U-shaped top continues to be strongly pressed by the inner cylindrical portion 35 of the lid body 2, and the seal portion ( The sealing property of S) is further secured.
また、容器口部１０の内周部１３が蓋体２の内円筒部３５の外面３５ａと密接する部分が、内円筒部３５の根元近いほど、すなわち、中栓３の仕切り部３１に近いほど、内円筒部３５が変形しにくく、内周部１３による押圧力が高くなる。そのためには、シール部（Ｓ）の少なくとも一部分（好ましくは全部）は、容器本体１の容器口部１０の開口端１０ａから２．２５〜５．７０ｍｍ、より好ましくは、３．６５〜４．３５ｍｍの範囲内に形成されるのがよい。これにより、内周部１３が内円筒部３５の根元近くを押圧することとなる。その結果、内周部１３による押圧力が高くなり、シール部（Ｓ）の密封性が向上する。特に、より高温（例えば８０℃近い温度）の内容物の充填時に、蓋体２の内円筒部３５が高温のために軟化する場合においても、シール部（Ｓ）の密封性をより確保することができる。 Further, the closer the inner peripheral portion 13 of the container mouth 10 to the outer surface 35a of the inner cylindrical portion 35 of the lid 2, the closer the root of the inner cylindrical portion 35, that is, the closer to the partition 31 of the inner plug 3, the closer. The inner cylindrical portion 35 is less likely to be deformed, and the pressing force of the inner peripheral portion 13 is increased. For that purpose, at least a part (preferably all) of the seal part (S) is 2.25 to 5.70 mm from the opening end 10 a of the container mouth 10 of the container body 1, and more preferably 3.65 to 4. It is preferably formed within a range of 35 mm. As a result, the inner peripheral portion 13 presses near the root of the inner cylindrical portion 35. As a result, the pressing force of the inner peripheral portion 13 is increased, and the sealing performance of the seal portion (S) is improved. In particular, even when the inner cylindrical portion 35 of the lid 2 is softened due to the high temperature when filling the contents at a higher temperature (for example, a temperature near 80° C.), the sealing property of the seal portion (S) is further ensured. You can
（第２実施形態）
次に、図４を参照して、第２実施形態の容器を説明する。図４は、第２実施形態の容器の一部切り欠き側面図である。
第２実施形態の容器１００ａは、容器本体１とスクリュー式の蓋体２ａとから構成されている。容器本体１の構造は、第１実施形態のものと同じであるので、その詳細な説明を省略する。また、中栓３ａの構造も第１実施形態と同じ箇所は説明を省略する。
(Second embodiment)
Next, the container of the second embodiment will be described with reference to FIG. FIG. 4 is a partially cutaway side view of the container of the second embodiment.
The container 100a according to the second embodiment includes a container body 1 and a screw-type lid 2a. Since the structure of the container body 1 is the same as that of the first embodiment, detailed description thereof will be omitted. The description of the structure of the inner plug 3a is omitted for the same parts as those in the first embodiment.
蓋体２ａは、中栓３ａと上蓋（スクリューキャップ）６とから構成されている。上蓋（スクリューキャップ）６は、天板部６１と天板部６１の周囲から下方に延びる周壁部６２とを有する有底円筒形状を有している。上蓋（スクリューキャップ）６を中栓３ａにねじ込むことにより、上蓋（スクリューキャップ）６の周壁部６２の内周のねじ溝６２ａと、中栓３ａの螺合筒部３２ａのねじとが螺合するとともに、上蓋（スクリューキャップ）６の天板部６１から下方に延びるインナーリング６３と、中栓３の仕切り部３１から上方に延びる注出筒３３ａとが全周に亘って密接する。これにより、容器１００ａの開栓後も、上蓋（スクリューキャップ）６を閉じることにより、容器１００ａを再び密封することができる。 The lid body 2a includes an inner plug 3a and an upper lid (screw cap) 6. The upper lid (screw cap) 6 has a bottomed cylindrical shape having a top plate portion 61 and a peripheral wall portion 62 extending downward from the periphery of the top plate portion 61. By screwing the upper lid (screw cap) 6 into the inner plug 3a, the thread groove 62a on the inner periphery of the peripheral wall portion 62 of the upper lid (screw cap) 6 and the screw of the threaded cylindrical portion 32a of the inner plug 3a are screwed together. At the same time, the inner ring 63 extending downward from the top plate portion 61 of the upper lid (screw cap) 6 and the spout cylinder 33a extending upward from the partition portion 31 of the inner plug 3 are in close contact with each other over the entire circumference. Thereby, even after the container 100a is opened, the container 100a can be sealed again by closing the upper lid (screw cap) 6.
そして、第２実施形態においても、蓋体２ａの中栓３ａの仕切り部３１から下方に延びる外円筒部３４と内円筒部３５との間の環状溝３６に、容器口部１０が嵌入することにより、容器本体１と蓋体２ａとが嵌合する。その結果、第1実施形態と同様に、密封性の高いシール部（Ｓ）が形成される。 Also in the second embodiment, the container mouth portion 10 is fitted in the annular groove 36 between the outer cylindrical portion 34 and the inner cylindrical portion 35 extending downward from the partition portion 31 of the inner plug 3a of the lid 2a. Thereby, the container body 1 and the lid body 2a are fitted together. As a result, similarly to the first embodiment, the seal portion (S) having high hermeticity is formed.
以上、本発明の実施形態を説明したが、本発明は、上述した実施形態に限定されるものではなく、本発明の範囲で種々の変更実施が可能である。例えば、上述した実施形態では、容器口部の断面の湾曲形状をＵ字形状とした例を説明したが、本発明では、湾曲形状はこれに限定されず、例えば、Ｃ字形状、又はＶ字形状としてもよい。
また、上述した実施形態では、上蓋と中栓とからなる蓋体の例を説明したが、本発明では、容器を構成する蓋体はこれらに限定されず、容器と嵌合するものであればよい。
また、上述した実施形態では、容器口部を容器本体の頂部に形成した例を説明したが、容器口部は、容器本体の頂部に形成されたものに限定されず、例えば、容器本体の側面に形成されていてもよい。
また、容器に充填される内容物は食品に限定されず、食品以外の流体、半固体、粒体又は粉体であってもよい。
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, in the above-described embodiment, an example in which the curved shape of the cross section of the container mouth portion is U-shaped has been described, but in the present invention, the curved shape is not limited to this, and for example, C-shaped or V-shaped. It may have a shape.
Further, in the above-described embodiment, an example of the lid body including the upper lid and the inner stopper has been described, but in the present invention, the lid body that constitutes the container is not limited to these, and may be any one that fits into the container. Good.
Further, in the above-described embodiment, an example in which the container mouth portion is formed on the top portion of the container body has been described, but the container mouth portion is not limited to the one formed on the top portion of the container body, and for example, the side surface of the container body. It may be formed in.
The contents filled in the container are not limited to foods, and may be fluids other than foods, semi-solids, granules or powders.
本発明に係る容器口部構造及び容器は、醤油、ソース、たれ、ドレッシング等の調味料や食用油を収容する容器の他、飲料や医薬品等に用いる各種容器などにおいても好適に利用することが可能である。 INDUSTRIAL APPLICABILITY The container mouth structure and container according to the present invention can be suitably used in soy sauce, sauce, sauce, containers for containing seasoning such as dressing and edible oil, and various containers used for beverages, pharmaceuticals, etc. It is possible.
１ 容器本体
２、２ａ 蓋体
３、３ａ 中栓
４ 上蓋
５ ヒンジ
６ 上蓋（スクリューキャップ）
１０ 容器口部
１０ａ 開口端
１１ 第１外周部
１２ 第２外周部
１２ａ 段差部
１３ 内周部
３０ プルリング
３１ 仕切り部
３１ａ スコア
３１ｂ 開栓部分
３２ 環状係止部
３２ａ 螺合筒部
３３、３３ａ 注出筒
３４ 外円筒部
３４ａ 外円筒部の内面
３５ 内円筒部
３５ａ 内円筒部の外面
３６ 環状溝
３７ 第１突起部（内面突起部）
３８ 第２突起部
３９ 第３突起部
４１、６１ 天板部
４２、６２ 周壁部
４３、６３ インナーリング
６２ａ ねじ溝
１００、１００ａ、１００ｂ容器
Ｕ Ｕ字形状の部分
Ｓ シール部
1 container body
2, 2a lid
3,3a inner stopper
4 Upper lid 5 Hinge 6 Upper lid (screw cap)
10 Container Mouth Part 10a Open End 11 First Outer Part 12 Second Outer Part 12a Step Part 13 Inner Part 30 Pull Ring 31 Partition Part 31a Score 31b Opening Part 32 Annular Locking Part 32a Threaded Cylinder Part 33, 33a Tube 34 Outer Cylinder 34a Inner Surface of Outer Cylinder 35 Inner Cylinder 35a Outer Surface of Inner Cylinder 36 Annular Groove 37 First Protrusion (Inner Protrusion)
38 2nd protrusion part 39 3rd protrusion part 41, 61 Top plate part 42, 62 Peripheral wall part 43, 63 Inner ring 62a Screw groove 100, 100a, 100b Container U U-shaped part S Seal part
Claims (8)
前記容器口部の開口端側から順に、
前記外円筒部の内面と当接するように、前記容器口部の外周側へ張り出した第１外周部と、
前記内円筒部の外面の全周と密接してシール部を形成するように、前記容器口部の内周側に張り出した内周部と、
前記外円筒部の内面と当接するように、前記容器口部の外周側に張り出した第２外周部とを有し、
前記第２外周部は、前記外円筒部の前記内面の第１突起部と係合するように、前記開口端側の反対側に段差部を有し、
前記内周部が前記内円筒部の外面を押圧するように、前記第１外周部から前記内周部を経て前記第２外周部へ至る部分が、前記容器口部の中心軸線を含む断面において、前記容器口部の内周側へ湾曲した湾曲形状を有する
ことを特徴とする、容器口部構造。 When the lid having the outer cylindrical portion with the inner surface protruding portion and the inner cylindrical portion is driven into the container body made of synthetic resin direct blow molding and fitted with the container body, the outer cylindrical portion of the lid and the inner portion A structure of a container mouth portion of the container body fitted in an annular groove between a cylindrical portion,
From the opening end side of the container mouth,
A first outer peripheral portion projecting toward the outer peripheral side of the container mouth portion so as to contact the inner surface of the outer cylindrical portion,
An inner peripheral portion protruding toward the inner peripheral side of the container mouth portion so as to form a seal portion in close contact with the entire outer peripheral surface of the inner cylindrical portion,
A second outer peripheral portion protruding toward the outer peripheral side of the container mouth portion so as to come into contact with the inner surface of the outer cylindrical portion,
The second outer peripheral portion has a step portion on the side opposite to the opening end side so as to engage with the first protrusion portion on the inner surface of the outer cylindrical portion,
In a cross section including a central axis of the container mouth portion, a portion from the first outer peripheral portion to the second outer peripheral portion through the inner peripheral portion so that the inner peripheral portion presses the outer surface of the inner cylindrical portion. A container mouth structure having a curved shape that is curved toward the inner peripheral side of the container mouth.
ことを特徴とする、請求項１記載の容器口部構造。The container mouth structure according to claim 1, wherein:
ことを特徴とする、請求項２記載の容器口部構造。The container mouth structure according to claim 2, wherein:
前記蓋体は、外円筒部と内円筒部とを有し、かつ前記外円筒部の内面に第１突起部を有し、
前記容器本体は、前記蓋体の前記外円筒部と前記内円筒部との間の環状溝に嵌入した容器口部を有し、
前記容器口部は、開口端側から順に、
前記容器口部の外周側へ張り出し、前記外円筒部の内面と当接した第１外周部と、
前記容器口部の内周側に張り出し、前記内円筒部の外面の全周と密接してシール部を形成する内周部と、
前記容器口部の外周側に張り出し、前記外円筒部の内面と当接した第２外周部とを有し、
前記第２外周部は、前記開口端側の反対側に、前記第１突起部と係合した段差部を有し、
前記内周部が前記内円筒部の外面を押圧するように、前記第１外周部から前記内周部を経て前記第２外周部へ至る前記容器口部の部分が、前記容器口部の中心軸線を含む断面において、前記容器口部の内周側へ湾曲した湾曲形状を有する
ことを特徴とする、容器。 A container comprising a synthetic resin direct blow molded container body and a lid body that is driven into the container body and fitted with the container body,
The lid has an outer cylindrical portion and an inner cylindrical portion, and has a first protrusion on the inner surface of the outer cylindrical portion,
The container body has a container mouth portion fitted in an annular groove between the outer cylindrical portion and the inner cylindrical portion of the lid body,
The container mouth portion, in order from the opening end side,
A first outer peripheral portion projecting to the outer peripheral side of the container mouth portion and in contact with the inner surface of the outer cylindrical portion;
An inner peripheral portion that overhangs on the inner peripheral side of the container mouth portion and forms a seal portion in close contact with the entire outer peripheral surface of the inner cylindrical portion,
And a second outer peripheral portion projecting to the outer peripheral side of the container mouth portion and abutting on the inner surface of the outer cylindrical portion,
The second outer peripheral portion has a step portion engaged with the first protrusion on the side opposite to the opening end side,
The portion of the container mouth portion that extends from the first outer peripheral portion to the second outer peripheral portion through the inner peripheral portion so that the inner peripheral portion presses the outer surface of the inner cylindrical portion is the center of the container mouth portion. A container having a curved shape that is curved toward the inner peripheral side of the container mouth in a cross section including an axis.
ことを特徴とする、請求項４記載の容器。The container according to claim 4, wherein:
ことを特徴とする、請求項４記載の容器。 The container according to claim 4 , wherein the lid body has a second protrusion that is engaged with the second outer peripheral portion from the opening end side on the inner surface of the outer cylindrical portion.
ことを特徴とする、請求項４〜６の何れかに記載の容器。 The lid is on the inner surface of the outer cylindrical portion, with respect to the first outer peripheral portion, have a third projection portion engaged from the open end side, the inner peripheral portion is pressed against the cylindrical portion In order to maintain the curved shape of the inner peripheral portion in the closed state, the second outer peripheral portion is locked by the first protrusion from the side opposite to the opening end side, and the first outer peripheral portion is The container according to any one of claims 4 to 6, wherein the container is locked by the third protrusion from the opening end side .
ことを特徴とする、請求項４〜７の何れか一項に記載の容器。
At least one part of the said sealing part is formed in the range of 2.25-5.70 mm from the said opening end of the said container opening part of the said container main body, The any one of Claim 4-7 characterized by the above-mentioned. The container according to the item.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015146900A JP6715580B2 (en) | 2015-07-24 | 2015-07-24 | Container mouth structure and container |
| CN201680035236.6A CN107709176B (en) | 2015-07-24 | 2016-06-27 | Container finish structure and container |
| PCT/JP2016/003086 WO2017017892A1 (en) | 2015-07-24 | 2016-06-27 | Container opening structure and container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015146900A JP6715580B2 (en) | 2015-07-24 | 2015-07-24 | Container mouth structure and container |
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| JP2017024769A JP2017024769A (en) | 2017-02-02 |
| JP6715580B2 true JP6715580B2 (en) | 2020-07-01 |
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| JP2015146900A Active JP6715580B2 (en) | 2015-07-24 | 2015-07-24 | Container mouth structure and container |
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| JP (1) | JP6715580B2 (en) |
| CN (1) | CN107709176B (en) |
| WO (1) | WO2017017892A1 (en) |
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|---|---|---|---|---|
| JP6926696B2 (en) * | 2017-06-07 | 2021-08-25 | 凸版印刷株式会社 | Sealed container |
| JP7264585B2 (en) * | 2017-06-15 | 2023-04-25 | 株式会社吉野工業所 | container with cap |
| CA3082235A1 (en) | 2017-12-15 | 2019-06-20 | Husky Injection Molding Systems Ltd. | Closure cap for a container |
| JP7038568B2 (en) * | 2018-02-28 | 2022-03-18 | 株式会社吉野工業所 | Bottle |
| JP7300933B2 (en) * | 2019-08-29 | 2023-06-30 | 株式会社吉野工業所 | cap |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57133833A (en) * | 1981-02-06 | 1982-08-18 | Q P Corp | Structure preventing leakage of mouth section of vessel and its method |
| US4573599A (en) * | 1985-02-25 | 1986-03-04 | Owens-Illinois, Inc. | Child resistant package with tamper indicating band |
| US5971183A (en) * | 1995-12-15 | 1999-10-26 | The Procter & Gamble Company | Tamper-evident leak-tight closure for containers |
| JP4524814B2 (en) * | 1999-05-21 | 2010-08-18 | 東洋製罐株式会社 | Pouring cap |
| WO2011062432A2 (en) * | 2009-11-17 | 2011-05-26 | Lee Jeong-Min | Connection die coupled with container neck in use |
| KR20110054930A (en) * | 2009-11-17 | 2011-05-25 | 이성재 | Connecting rod used in combination with container neck |
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| JP2017024769A (en) | 2017-02-02 |
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| CN107709176A (en) | 2018-02-16 |
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