JP4379566B2 - Pouring cap - Google Patents

Pouring cap Download PDF

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Publication number
JP4379566B2
JP4379566B2 JP2001158090A JP2001158090A JP4379566B2 JP 4379566 B2 JP4379566 B2 JP 4379566B2 JP 2001158090 A JP2001158090 A JP 2001158090A JP 2001158090 A JP2001158090 A JP 2001158090A JP 4379566 B2 JP4379566 B2 JP 4379566B2
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JP
Japan
Prior art keywords
cap
cylinder
cap body
lid
outer ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2001158090A
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Japanese (ja)
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JP2002347809A (en
Inventor
義幸 角田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Priority to JP2001158090A priority Critical patent/JP4379566B2/en
Publication of JP2002347809A publication Critical patent/JP2002347809A/en
Application granted granted Critical
Publication of JP4379566B2 publication Critical patent/JP4379566B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、壜体に組み付けられ、廃棄時においてその壜体と容易に分別可能とした合成樹脂製注出キャップに関するものである。
【0002】
【従来の技術】
この種の注出キャップの従来例として、実用新案登録第2596699号公報記載のものが知られている。
【0003】
この公報記載の注出キャップは、壜体口筒の外周に嵌着するキャップ本体の組付き筒に、ヒンジの一側端近傍の上端から下端に亘って縦方向の弱化線を設けると共に、キャップ本体の頂板に、弱化線の上部に連続した周方向の弱化線を設けて構成され、廃棄時には、ヒンジを介して一体に連結されている蓋体を引張ることにより、両弱化線を破断してキャップ全体を壜体口筒から取り外し、分別するようになっている。
【0004】
また、一般に合成樹脂製注出キャップは、壜体に対する組付き強度やヒンジ部分の強度、耐久性を要求されることから、ポリプロピレン等の比較的硬質な合成樹脂で一体成形されている。
【0005】
【発明が解決しようとする課題】
しかしながら、上記した従来技術のように、キャップ本体に分別破断用の弱化線を設けた注出キャップを、ポリプロピレン等の硬質な合成樹脂で一体成形した場合、キャップに必要とされる強度、耐久性は充足される反面、弱化線は破断され難いため、分別廃棄時における弱化線の破断に大きな操作力を要し、この分別作業を迅速、円滑に行なうことができない、と云う問題があった。
【0006】
そこで、本発明は、上記した従来技術における問題点を解消すべく創案されたもので、注出キャップに要求される強度、耐久性を低下させることなく、分別廃棄時における弱化線の破断を小さい操作力で容易に行なえるようにすることを技術的課題とし、もって注出キャップの分別を容易にかつ迅速、円滑に達成できるようにすることを目的とする。
【0007】
【課題を解決するための手段】
上記技術的課題を解決する本発明の内、請求項1記載の発明の手段は、
頂部に注出口を有し、壜体口筒に外嵌する組付き筒の略下半分を、壜体口筒にアンダーカット結合する複数の係合片に分割形成すると共に、この組付き筒の外方に、複数の破断可能な連結片により、下端部を係合片の下端部と連結して外リングを周設して、組付き筒との間に嵌入部を形成し、外リングに、把手片によりこの外リングを縦に破断可能な肉薄の弱化線を設け、かつ組付き筒の後面上端部に係止凸部を突設した、比較的軟質な合成樹脂製のキャップ本体を有すること、
キャップ本体の嵌入部に不動に嵌入され、内周面後部に、キャップ本体の係止凸部を上下方向にスライド可能に収容し下面を係止面としたスライド凹部を設けた締付けリングの後部上端に、キャップ本体の注出口を開閉する上蓋をヒンジで連結した、比較的硬質な合成樹脂製の蓋体を有すること、
にある。
【0008】
注出キャップの分別取外しは、まずキャップ本体の外リングの把手片を引っ張って弱化線と各種連結片を破断し、これにより外リングを組付き筒から分離もしくは略分離させ、次いで蓋体の上蓋を引き上げることにより、締付けリングの後部を引き上げてスライド凹部下端の係止面をキャップ本体の係止凸部に当接係止させ(図3参照)、なおも上蓋を引き上げてキャップ本体の後部を引き上げると、組付き筒下部の係合片が外側へ容易に弾性変形して、壜体口筒の係合突条を乗り越えるため、蓋体とキャップ本体とが一体となって、壜体口筒から容易に離脱する。
【0009】
請求項2記載の発明は、請求項1記載の発明の構成に、キャップ本体を低密度ポリエチレン樹脂製とし、蓋体をポリプロピレン樹脂製とした、ことを加えたものである。
【0010】
この請求項2記載の発明にあっては、キャップ本体を低密度ポリエチレン樹脂製としたので、安定して高いシール性を得ることができ、また蓋体をポリプロポレン樹脂製としたので、強いヒンジ機能部を得ることができると共に、キャップ本体の組付き筒に対する締付けリングの外装により、熱充填用耐熱キャップとして有効に機能することになる。
【0011】
【発明の実施の形態】
以下、本発明の一実施例を、図面を参照しながら説明する。
注出キャップは、壜体口筒30に組付くキャップ本体1と、このキャップ本体1に組付く別体構造の蓋体20とから構成されている。
【0012】
低密度ポリエチレン樹脂等の比較的軟質な合成樹脂材料で一体成形されるキャップ本体1は、壜体口筒30の外周に嵌着する組付き筒2の上端内方に頂板5を連設し、この頂板5の下面内側に、壜体口筒30の内周面に密接するシール筒6を垂下設すると共に、頂板5の上面内側には注出口8を形成する注出筒片7が立設されている。
【0013】
キャップ本体1の注出口8の底面は、破断溝10の内側部分を除去壁部11とした口壁9で閉塞されており、この除去壁部11は、その上面に一体設されたプルリング12を使用時に引き上げることにより、破断溝10部分で破断されて除去される。
【0014】
キャップ本体1の組付き筒2の略下半分は、内周面にアンダーカット結合用の係合突条を設けた複数の係合片3に、割溝を介して分割形成されており、壜体口筒30にはこれらの係合片3によりアンダーカット結合する(図2参照)。
【0015】
また、この組付き筒2の外方には、複数の破断可能な連結片4により、下端部を各係合片3の下端部と連結されて外リング13が周設され、組付き筒2との間に嵌入部14を形成している。
【0016】
この外リング13の一部には、コの字状のスリット16を切欠くことによって把手部15を残存形成し、またスリット16の上側部分の後端から外リング13の上端まで、およびスリット16の下側部分の後端から外リング13の下端までに亘って、それぞれ肉薄溝状の弱化線17を傾斜状に形成している(図1参照)。
【0017】
なお、組付き筒2の後面上端部には、ストッパとして作用する係止凸部18が突設されている。
【0018】
ポリプロピレン樹脂等の比較的硬質な合成樹脂で一体成形される蓋体20は、アンダーカット結合によりキャップ本体1の嵌入部14に不動に嵌入して、組付き筒2を壜体口筒30に強固に組付ける締付けリング21の後部上端に、キャップ本体1の注出口8を開閉する上蓋25を、ヒンジ24で連結して構成されている。
【0019】
蓋体20の締付けリング21の嵌入部14に対する不動な嵌入組付きは、キャップ本体1の外リング13の内周面上端部と、締付けリング21の外周面上端部とのアンダーカット結合により達成されており、それゆえ外リング13を組付き筒2から分離もしくは略分離させると、締付けリング21のキャップ本体1に対するアンダーカット結合は解除され、締付けリング21はキャップ本体1に対して変位可能となる。
【0020】
上蓋25の頂壁内面には、上蓋25の閉状態において、キャップ本体1の注出筒片7の内周面に密接して、注出口8を密閉する栓筒片26が突設されている。
【0021】
また、締付けリング21の内周面後部には、組付き筒2の係止凸部18が上下方向にスライド可能に収容され、下面を係止面23としたスライド凹部22が形成されている。
【0022】
【発明の効果】
本発明は、上記した構成となっているので、以下に示す効果を奏する。
請求項1記載の発明にあっては、略下半分を複数の係合片に分割形成した組付き筒に外嵌する締付けリングとヒンジとを有する蓋体を、比較的硬質な合成樹脂製としたので、キャップ本体の壜体口筒への組付きを強固にすることができると共に、ヒンジの強度、耐久性も良好に保持することができ、また、壜体口筒に直接組付くキャップ本体を、比較的軟質な合成樹脂製としたので、壜体に対するシール性も良好に保持される。
【0023】
また、分別取外し時において破断分離される外リングを有するキャップ本体を、比較的軟質な合成樹脂製としたので、弱化線および連結片の破断を小さい操作力で容易に行なうことができると共に、組付き筒の下部分を弾性変形容易な係合片に分割形成したので、組付き筒を壜体口筒から容易に離脱させることができ、もって注出キャップの分別取外しを容易にかつ迅速、円滑に達成することができる。
【0024】
請求項2記載の発明にあっては、優れたシール性と、ヒンジキャップとしての高い強度とを効果的に発揮し、また耐熱性に優れたポリプロピレン樹脂製の蓋体の締付けリングが、キャップ本体の組付き筒に外嵌するので、内容物の熱充填に際して、キャップ本体の組付き筒の熱変形に発生を強力に阻止し、これにより内容物の熱充填に対して有効に機能する。
【図面の簡単な説明】
【図1】本発明の一実施例を示す、分解斜視図。
【図2】図1に示した実施例の、組付き状態を示す縦断側面図。
【図3】図1に示した実施例の、キャップ取外し状態を示す縦断側面図。
【符号の説明】
1 ; キャップ本体
2 ; 組付き筒
3 ; 係合片
4 ; 連結片
5 ; 頂板
6 ; シール筒
7 ; 注出筒片
8 ; 注出口
9 ; 口壁
10; 破断溝
11; 除去壁部
12; プルリング
13; 外リング
14; 嵌入部
15; 把手部
16; スリット
17; 弱化線
18; 係止凸部
20; 蓋体
21; 締付けリング
22; スライド凹部
23; 係止面
24; ヒンジ
25; 上蓋
26; 栓筒片
30; 壜体口筒
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin pouring cap which is assembled to a casing and can be easily separated from the casing at the time of disposal.
[0002]
[Prior art]
As a conventional example of this type of dispensing cap, one described in Utility Model Registration No. 2596699 is known.
[0003]
The pouring cap described in this gazette is provided with a longitudinal weakening line extending from the upper end to the lower end in the vicinity of one end of the hinge on the cylinder with which the cap body is fitted to the outer periphery of the casing mouth tube. The top plate of the main body is constructed by providing a continuous circumferential weakening line on the top of the weakening line, and at the time of disposal, the two weakening lines are broken by pulling a lid that is integrally connected via a hinge. The entire cap is removed from the housing mouthpiece and separated.
[0004]
In general, a synthetic resin pouring cap is integrally formed of a relatively hard synthetic resin such as polypropylene because it requires assembly strength with respect to the casing, strength of the hinge portion, and durability.
[0005]
[Problems to be solved by the invention]
However, as in the prior art described above, when a cap with a weakening line for separation fracture is integrally formed with a hard synthetic resin such as polypropylene, the strength and durability required for the cap However, since the weakening line is difficult to break, a large operating force is required to break the weakening line at the time of disposal, and the separation work cannot be performed quickly and smoothly.
[0006]
Therefore, the present invention was devised to solve the above-mentioned problems in the prior art, and the breakage of the weakening line at the time of sorting and disposal is reduced without reducing the strength and durability required for the dispensing cap. It is an object of the present invention to make it easy to operate with an operating force, and thus to easily and quickly achieve the separation of the dispensing cap.
[0007]
[Means for Solving the Problems]
Among the present invention for solving the above technical problems, the means of the invention according to claim 1 is:
The bottom half of the assembled cylinder that has a spout at the top and is externally fitted to the housing mouth tube is divided into a plurality of engaging pieces that are undercut coupled to the housing mouth cylinder, and The outer ring is connected to the outer ring by connecting the lower end to the lower end of the engaging piece and a fitting portion is formed between the assembled cylinder and the outer ring. A relatively soft synthetic resin cap body provided with a thin weakening line capable of vertically breaking the outer ring by a handle piece, and a locking projection protruding from the upper end of the rear surface of the assembled cylinder. thing,
The upper end of the rear part of the tightening ring that is fixedly inserted into the fitting part of the cap body, and that is provided with a sliding concave part with the locking convex part of the cap main body slidable in the vertical direction and with the bottom surface as the locking surface. And having a relatively hard synthetic resin lid that is connected to the upper lid for opening and closing the spout of the cap body with a hinge,
It is in.
[0008]
To remove the dispensing cap, first pull the handle piece of the outer ring of the cap body to break the weakening line and various connecting pieces, thereby separating or substantially separating the outer ring from the assembled cylinder, and then the upper lid of the lid By pulling up, the rear part of the tightening ring is pulled up so that the locking surface at the lower end of the slide concave part is brought into contact with and locked to the locking convex part of the cap body (see FIG. 3). When pulled up, the engagement piece at the lower part of the assembled cylinder easily elastically deforms outward and overcomes the engagement protrusion of the casing mouth cylinder, so that the lid body and the cap body are integrated into the casing mouth cylinder. Easily leave.
[0009]
The invention according to claim 2 is obtained by adding the structure of the invention according to claim 1 to that the cap body is made of low density polyethylene resin and the lid is made of polypropylene resin.
[0010]
In the invention of claim 2, since the cap body is made of low-density polyethylene resin, it is possible to stably obtain a high sealing property, and the lid is made of polypropylene resin, so it has a strong hinge function In addition to being able to obtain a part, the exterior of the fastening ring with respect to the assembled cylinder of the cap body effectively functions as a heat-resistant heat cap.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The pouring cap is composed of a cap main body 1 assembled to the housing mouthpiece 30 and a lid 20 having a separate structure assembled to the cap main body 1.
[0012]
The cap body 1 integrally molded with a relatively soft synthetic resin material such as low-density polyethylene resin has a top plate 5 continuously provided on the inner side of the upper end of the assembled cylinder 2 that is fitted to the outer periphery of the casing mouth cylinder 30. A seal cylinder 6 that is in close contact with the inner peripheral surface of the housing mouth cylinder 30 is suspended inside the bottom surface of the top plate 5, and a dispensing cylinder piece 7 that forms a spout 8 is erected inside the top surface of the top plate 5. Has been.
[0013]
The bottom surface of the spout 8 of the cap body 1 is closed by a mouth wall 9 having an inner portion of the breaking groove 10 as a removal wall portion 11, and the removal wall portion 11 has a pull ring 12 integrally provided on the upper surface thereof. By pulling up at the time of use, it is broken and removed at the breaking groove 10 portion.
[0014]
The substantially lower half of the assembled cylinder 2 of the cap body 1 is divided and formed through a split groove on a plurality of engagement pieces 3 provided with engagement protrusions for undercut coupling on the inner peripheral surface. The body mouth tube 30 is undercut coupled by these engagement pieces 3 (see FIG. 2).
[0015]
Further, an outer ring 13 is provided around the assembled cylinder 2 by connecting a lower end portion thereof to a lower end portion of each engaging piece 3 by a plurality of breakable connecting pieces 4. The insertion part 14 is formed between the two.
[0016]
A grip portion 15 is left remaining in a part of the outer ring 13 by notching a U-shaped slit 16, and from the rear end of the upper portion of the slit 16 to the upper end of the outer ring 13 and the slit 16. A thin groove-like weakening line 17 is formed in an inclined shape from the rear end of the lower portion to the lower end of the outer ring 13 (see FIG. 1).
[0017]
A locking projection 18 that acts as a stopper projects from the upper end of the rear surface of the assembled cylinder 2.
[0018]
The lid 20 integrally molded with a relatively hard synthetic resin such as polypropylene resin is fixedly fitted into the fitting portion 14 of the cap body 1 by undercut coupling, and the assembled cylinder 2 is firmly attached to the casing mouth cylinder 30. An upper lid 25 that opens and closes the spout 8 of the cap main body 1 is connected to a rear upper end of the tightening ring 21 to be attached to the hinge ring 24 by a hinge 24.
[0019]
The immovable fitting assembly with respect to the fitting portion 14 of the tightening ring 21 of the lid 20 is achieved by an undercut connection between the upper end portion of the inner peripheral surface of the outer ring 13 of the cap body 1 and the upper end portion of the outer peripheral surface of the tightening ring 21. Therefore, when the outer ring 13 is separated or substantially separated from the assembled cylinder 2, the undercut coupling of the tightening ring 21 to the cap body 1 is released, and the tightening ring 21 can be displaced with respect to the cap body 1. .
[0020]
On the inner surface of the top wall of the upper lid 25, a plug cylinder piece 26 is provided so as to be in close contact with the inner peripheral surface of the extraction cylinder piece 7 of the cap body 1 in the closed state of the cap body 1 and seal the outlet 8. .
[0021]
Further, at the rear part of the inner peripheral surface of the tightening ring 21, a locking convex portion 18 of the assembled cylinder 2 is accommodated so as to be slidable in the vertical direction, and a slide concave portion 22 having a lower surface as a locking surface 23 is formed.
[0022]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the present invention, the lid having a fastening ring and a hinge that are externally fitted to an assembled cylinder having a substantially lower half divided into a plurality of engaging pieces is made of a relatively hard synthetic resin. As a result, the cap body can be firmly attached to the casing mouthpiece, and the strength and durability of the hinge can be maintained well, and the cap body can be directly attached to the casing mouthpiece. Since it is made of a relatively soft synthetic resin, the sealing performance against the housing is also kept good.
[0023]
In addition, since the cap body having the outer ring that is broken and separated at the time of separation and removal is made of a relatively soft synthetic resin, the weakened wire and the connecting piece can be easily broken with a small operating force. Since the lower part of the attached cylinder is divided into elastically deformable engagement pieces, the assembled cylinder can be easily detached from the housing mouth cylinder, so that the dispensing cap can be easily and quickly removed smoothly. Can be achieved.
[0024]
In the invention according to claim 2, the fastening ring of the lid made of polypropylene resin, which effectively exhibits excellent sealing properties and high strength as a hinge cap, and has excellent heat resistance, is a cap body. Therefore, when the contents are heat-filled, generation of heat deformation of the cap body-attached cylinder is strongly prevented, thereby effectively functioning against the heat filling of the contents.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
2 is a vertical side view showing an assembled state of the embodiment shown in FIG. 1; FIG.
FIG. 3 is a vertical side view showing the cap removed state of the embodiment shown in FIG. 1;
[Explanation of symbols]
1; Cap body 2; Assembly cylinder 3; Engagement piece 4; Connection piece 5; Top plate 6; Seal cylinder 7; Outlet cylinder piece 8; Outlet 9; Mouth wall 10; Breaking groove 11; Pull ring 13; Outer ring 14; Insertion part 15; Handle part 16; Slit 17; Weak line 18; Locking convex part 20; Lid 21; Tightening ring 22; Slide concave part 23; ; Plug piece 30;

Claims (2)

頂部に注出口(8)を有し、壜体口筒(30)に外嵌する組付き筒(2)の略下半分を、前記壜体口筒(30)にアンダーカット結合する複数の係合片(3)に分割形成すると共に、該組付き筒(2)の外方に、複数の破断可能な連結片(4)により、下端部を前記係合片(3)の下端部と連結して外リング(13)を周設して、前記組付き筒(2)との間に嵌入部(14)を形成し、前記外リング(13)に、把手片(15)により該外リング(13)を縦に破断可能な肉薄の弱化線(17)を設け、かつ前記組付き筒(2)の後面上端部に係止凸部(18)を突設した、比較的軟質な合成樹脂製のキャップ本体(1)と、前記嵌入部(14)に不動に嵌入され、内周面後部に、前記係止凸部(18)を上下方向にスライド可能に収容し下面を係止面(23)としたスライド凹部(22)を設けた締付けリング(21)の後部上端に、前記注出口(8)を開閉する上蓋(25)をヒンジ(24)で連結した、比較的硬質な合成樹脂製の蓋体(20)と、から成る注出キャップ。A plurality of members having a spout (8) at the top and undercut coupling the substantially lower half of the assembled cylinder (2) fitted on the casing mouthpiece (30) to the casing mouthpiece (30). The lower end is connected to the lower end of the engaging piece (3) by a plurality of breakable connecting pieces (4) on the outer side of the assembled cylinder (2). Then, an outer ring (13) is provided around to form a fitting portion (14) between the outer tube (2) and the outer ring (13) is formed by a grip piece (15). A relatively soft synthetic resin provided with a thin weakening line (17) that can be vertically broken (13), and a protruding projection (18) protruding from the upper end of the rear surface of the assembled cylinder (2). A cap body (1) made of metal and fixedly inserted into the insertion portion (14), and the rear surface of the inner peripheral surface accommodates the locking projection (18) so as to be slidable in the vertical direction, and the lower surface is a locking surface ( Open and close the spout (8) at the upper end of the rear part of the clamping ring (21) provided with the slide recess (22) as shown in (23). (25) and hinged (24), pouring cap consists of a relatively rigid synthetic resin lid (20). キャップ本体(1)を低密度ポリエチレン樹脂製とし、蓋体(20)をポリプロピレン樹脂製とした請求項1記載の注出キャップ。The pouring cap according to claim 1, wherein the cap body (1) is made of low density polyethylene resin and the lid (20) is made of polypropylene resin.
JP2001158090A 2001-05-28 2001-05-28 Pouring cap Expired - Fee Related JP4379566B2 (en)

Priority Applications (1)

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JP2001158090A JP4379566B2 (en) 2001-05-28 2001-05-28 Pouring cap

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Application Number Priority Date Filing Date Title
JP2001158090A JP4379566B2 (en) 2001-05-28 2001-05-28 Pouring cap

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JP2002347809A JP2002347809A (en) 2002-12-04
JP4379566B2 true JP4379566B2 (en) 2009-12-09

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5102098B2 (en) * 2008-04-30 2012-12-19 株式会社吉野工業所 Spout
CN109703891B (en) * 2019-03-05 2021-03-23 薛炜熙 Follow-on mounting structure of travel bottle body and bottle lid

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