【０００１】
【発明の属する技術分野】
本発明は液体や粉体のための容器に関する。
【０００２】
【従来の技術】
特許文献１に記載の如く、容器本体に設けられるキャップが、容器本体の内部の側に張り出る内筒に流通口を設け、該内筒の流通口に連通して容器本体の外部の側に延びる注出筒を有するものがある。
【０００３】
【特許文献１】
特開２０００−１０３４４４（図１、［００１９］）
【発明が解決しようとする課題】
従来の容器では、液注出時に、粘度の低い内容液が一度にどっと出ることを防止するため、流通口の開口面積を小さくすると、注出液量が過小になるおそれがあるし、内容液の詰め替え時における詰め替え液の注入流量も過小になる。
【０００４】
特許文献１の容器では、内容液の詰め替え時に、内筒及び注出筒を取外し、詰め替え液の注入開口を広くしているが、その取外しに手間を要して使い勝手が悪い。
【０００５】
本発明の課題は、内容物の注出時に注出流量を過小にすることなく、どっと出を防止し、かつ内容液の詰め替え時の注入流量を大きくすることにある。
【０００６】
【課題を解決するための手段】
請求項１の発明は、容器本体に設けられるキャップに内筒を設け、該内筒は該容器本体の内壁面に沿って該容器本体の内部の側に張り出る側壁部と、該側壁部の張り出し端を塞ぐ底部とを有し、該内筒の該底部に、該側壁部に沿う帯状の湾曲流通口を開口し、該流通口の湾曲に沿う中央部を該底部の注ぎ出し側寄りに位置付けた容器である。
【０００７】
【発明の実施の形態】
（第１実施形態）（図１、図２）
洗剤容器等の容器１０は、図１に示す如く、容器本体１１にキャップ２０を被着したものである。キャップ２０は、容器本体１１の円形断面状（角形断面状でも可）の開口部１２に嵌着（又は螺着）等により取着されるキャップ本体２１と、キャップ本体２１に螺着（又は嵌着）等により着脱されるカバーキャップ２２を有する。カバーキャップ２２は、キャップ本体２１から注出される内容液を受けて計量する計量カップとして用いる。
【０００８】
キャップ２０は、キャップ本体２１の容器本体１１に取着される側（内側）に内筒２３を嵌着し、キャップ本体２１にカバーキャップ２２を被着した組立体とした形態で、内容液を充填した容器本体１１に被着して用いられる。
【０００９】
キャップ本体２１は、容器本体１１の開口部１２に取着される円形断面状（角形断面状でも可）の外筒部３１と、外筒部３１の上端部を塞ぐ天面部３２と、天面部３２の内周に続く円形断面状（角形断面状でも可）の内筒部３３と、天面部３２の上面に設けられてカバーキャップ２２が螺着されるねじ部３４と、内筒部３３に連設し、キャップ本体２１の内外を仕切る仕切り部３５と、仕切り部３５の略中央から内筒部３３に対する略同軸をなし、容器本体１１の外部の側に向けて上方に延びる円形断面状（角形断面状でも可）の注出筒３６を有する。
【００１０】
キャップ本体２１は、仕切り部３５に内容液を出し入れするための円形状（角形状でも可）の流通口３７を備える。注出筒３６は、流通口３７から取入れた内容液を案内して注出筒３６の上端の注ぎ口３６Ａから注ぎ出す。キャップ本体２１は、内筒部３３と注出筒３６の間の仕切り部３５上に環状の液回収部３８を形成し、注出筒３６の反注ぎ出し側に、該注出筒３６の液戻しスリット３９Ａと液回収部３８の液戻し口３９Ｂを互いに連続するように開設している。
【００１１】
内筒２３は、キャップ本体２１の外筒部３１と天面部３２と内筒部３３が囲む環状凹部に嵌合される円環状（角環状でも可）のフランジ部４１を有し、フランジ部４１の逆Ｕ字状断面がなす下向き凹部を容器本体１１の開口部１２の上縁部に嵌着し、フランジ部４１の逆Ｕ字状断面の内周壁に連続する円形断面状（角形断面状でも可）の側壁部４２を有する。内筒２３は、側壁部４２を容器本体１１の開口部１２の内壁面に沿わせて容器本体１１の内部の側に張り出るように下方に延ばし、側壁部４２の張り出し端に該側壁部４２を塞ぐ円形状（角形状でも可）の底部４３を設ける。
【００１２】
しかるに、キャップ２０は、内筒２３の底部４３に、図２（Ａ）に示す如く、底部４３の中心部まわりで側壁部４２に沿う帯状の湾曲流通口４４を開口し、流通口４４の湾曲に沿う中央部（底部４３の中心まわりの周方向における流通口４４の湾曲長範囲の中央部）を底部４３の注ぎ出し側寄りに位置付ける。流通口４４は、底部４３の側壁部４２に交差する外縁に接して延在される。
【００１３】
流通口４４は、注出筒３６の下端内周面（流通口３７）の注ぎ出し側寄りの半周以上に沿って延在する。流通口３７の開口面積は、流通口４４の開口面積より大きい。
【００１４】
本発明において、「注ぎ出し側」とは、容器１０を注ぎ出しのために前傾する際の前側をいい、キャップ２０の中心軸Ａに対して注出筒３６の尖り状注ぎ口３６Ａの最上端Ｂが位置する側をいう。
【００１５】
本実施形態によれば以下の作用がある。
（請求項１に対応する作用）
▲１▼液注出時に、容器本体１１を注ぎ出し側に向けて前傾させたとき、キャップ２０の内筒２３の底部４３に開口させた流通口４４の湾曲に沿うほぼ中央部が、内容液の流れが集まる該底部４３の注ぎ出し側寄りに位置するものとなり、流通口４４の湾曲に沿う中央部側を湾曲状の液注出領域、その両端側を空気置換領域とする。従って、液注出領域に一定以上の開口面積を確保して注出流量を過小にすることがないし、湾曲状の液注出領域の鉛直上側の底部４３が液面側の流れを一部堰き止めてどっと出を防止し、安心して注出できる。
【００１６】
▲２▼液詰め替え時には、流通口４４の湾曲に沿うほぼ全域を液注入領域とし、広い注入領域を確保し、詰め替え時の注入流量を大きくできる。詰め替え容器から容器１０への詰め替え液の注入のスムースを図り、詰め替え液が容器１０の流通口４４から溢れて周辺汚損する等がなく、安心して注入でき、詰め替えの迅速を図ることができる。
【００１７】
（請求項２に対応する作用）
▲３▼湾曲流通口４４を注出筒３６の内周面の注ぎ出し側寄りの半周以上に渡って延在させた。従って、上述▲１▼の液注出時に、湾曲状の液注出領域と、その両端側の空気置換領域のそれぞれを安定確実に形成し、注出性の向上を図ることができる。また、上述▲２▼の液詰め替え時に、広い注入領域を安定確実に形成し、注入性の向上を図ることができる。
【００１８】
本発明者の実験結果によれば、内筒２３の底部４３に湾曲流通口４４を設けた図２（Ａ）の本発明例では、容器１０の前傾角１０度、２０度のときの注出流量がそれぞれ７１ｍＬ／１０ｓｅｃ、８４ｍＬ／１０ｓｅｃで、どっと出を生じないこと、詰め替え液の注入流量が１６６ｍＬ／１０ｓｅｃであることを認めた。これに対し、内筒２３の底部４３に半月状流通口４４を設けた図２（Ｂ）の比較例では、詰め替え液の注入流量は１８１ｍＬ／１０ｓｅｃを確保できるが、容器１０の前傾角１０度、２０度のときの注出流量がそれぞれ１９ｍＬ／１０ｓｅｃ、４１ｍＬ／１０ｓｅｃの如くに過小にあることを認めた。
【００１９】
（第２実施形態）（図３、図４）
第２実施形態の容器５０が第１実施形態の容器１０と異なる点は、図３に示す如く、容器１０のキャップ２０における内筒２３を撤去し、キャップ２０のキャップ本体２１を構成している内筒部３３及び仕切り部３５の部分を、本発明の内筒５１としたことにある。
【００２０】
内筒５１は、キャップ本体２１の内筒部３３及び仕切り部３５の部分を側壁部５２とすることにより、側壁部５２を容器本体１１の開口部１２の内壁面に沿わせて容器本体１１の内部の側に張り出るように下方に延ばし、側壁部５２の注出筒３６を立設せしめる張り出し端に側壁部５２及び注出筒３６を塞ぐ円形状（角形状でも可）の底部５３を設ける。
【００２１】
そして、キャップ２０は、内筒５１の底部５３に、図４に示す如く、側壁部５２に沿う帯状の湾曲流通口５４を開口し、流通口５４の湾曲に沿う中央部（底部５３の中心まわりの周方向における流通口５４の湾曲長範囲の中央部）を底部５３の注ぎ出し側寄りに位置付けた。流通口５４は、底部５３の側壁部５２に交差する外縁、本実施形態では注出筒３６の下端内周面に接して延在される。
【００２２】
流通口５４は、注出筒３６の下端内周面の注ぎ出し側寄りの半周以上に渡って延在する。
本実施形態によれば、第１実施形態におけると同様の作用効果がある。
【００２３】
【発明の効果】
本発明によれば、内容物の注出時に注出流量を過小にすることなく、どっと出を防止し、かつ内容液の詰め替え時の注入流量を大きくすることができる。
【図面の簡単な説明】
【図１】図１は第１実施形態の容器を示す要部断面図である。
【図２】図２は内筒の底部に開口した流通口を示し、（Ａ）は本発明例を示す模式図、（Ｂ）は比較例を示す模式図である。
【図３】図３は第２実施形態の容器を示す要部断面図である。
【図４】図４は内筒の底部に開口した流通口を示す模式図である。
【符号の説明】
１０、５０ 容器
１１ 容器本体
２０ キャップ
２３、５１ 内筒
３６ 注出筒
４２、５２ 側壁部
４３、５３ 底部
４４、５４ 湾曲流通口[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to containers for liquids and powders.
[0002]
[Prior art]
As described in Patent Literature 1, a cap provided on a container main body has a flow opening provided in an inner cylinder projecting toward the inner side of the container main body, and communicates with the flow opening of the inner cylinder on the outer side of the container main body. Some have a dispensing tube that extends.
[0003]
[Patent Document 1]
JP 2000-103444 (FIG. 1, [0019])
[Problems to be solved by the invention]
In a conventional container, when the liquid is poured out, if the opening area of the circulation port is reduced to prevent the low-viscosity liquid from flowing out at once, the amount of the liquid to be discharged may be too small, Injection flow rate of the refilling liquid at the time of refilling becomes too small.
[0004]
In the container of Patent Literature 1, the inner cylinder and the dispensing cylinder are removed at the time of refilling the content liquid, and the injection opening of the refill liquid is widened. However, the removal is troublesome and the usability is poor.
[0005]
An object of the present invention is to prevent dripping out of the contents without excessively decreasing the flow rate when the contents are poured out, and to increase the injection flow rate when refilling the contents liquid.
[0006]
[Means for Solving the Problems]
According to the invention of claim 1, an inner cylinder is provided on a cap provided on the container main body, and the inner cylinder has a side wall projecting toward the inside of the container main body along an inner wall surface of the container main body; A bottom portion for closing the overhanging end, a band-shaped curved flow opening along the side wall portion is opened at the bottom of the inner cylinder, and a central portion along the curve of the flow opening is closer to the pouring side of the bottom. It is a positioned container.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment) (FIG. 1, FIG. 2)
As shown in FIG. 1, a container 10 such as a detergent container has a container body 11 with a cap 20 attached thereto. The cap 20 is attached (or screwed) to the opening 12 having a circular cross section (or a square cross section) of the container main body 11, and is screwed (or fitted) to the cap main body 21. The cover cap 22 is detachably attached to the cover cap 22. The cover cap 22 is used as a measuring cup for receiving and measuring the content liquid discharged from the cap body 21.
[0008]
The cap 20 is an assembly in which the inner cylinder 23 is fitted on the side (inside) of the cap body 21 to be attached to the container body 11 and the cover cap 22 is attached to the cap body 21. It is used by being attached to the filled container body 11.
[0009]
The cap body 21 includes an outer cylindrical portion 31 having a circular cross section (a square cross section may be attached) attached to the opening 12 of the container main body 11, a top surface portion 32 closing an upper end portion of the outer cylindrical portion 31, and a top surface portion. An inner cylindrical portion 33 having a circular cross-section (or a square cross-sectional shape) following the inner circumference of the inner portion 32, a screw portion 34 provided on the upper surface of the top surface portion 32 and screwed with the cover cap 22, and an inner cylindrical portion 33. A partition section 35 that is continuously provided and partitions the inside and outside of the cap main body 21, and has a circular cross-section (substantially coaxial with the inner cylinder section 33 from substantially the center of the partition section 35 and extending upward toward the outside of the container body 11 ( (A square cross section is also possible).
[0010]
The cap body 21 is provided with a circular (or square) flow port 37 for taking in and out the content liquid into and out of the partition 35. The dispensing cylinder 36 guides the content liquid taken in from the distribution port 37 and pours it out from the pouring port 36A at the upper end of the dispensing cylinder 36. The cap main body 21 forms an annular liquid recovery part 38 on a partition 35 between the inner cylindrical part 33 and the discharge cylinder 36, and the liquid of the discharge cylinder 36 is provided on the opposite side of the discharge cylinder 36. The return slit 39A and the liquid return port 39B of the liquid recovery unit 38 are opened so as to be continuous with each other.
[0011]
The inner cylinder 23 has an annular (or a square annular) flange portion 41 that is fitted into an annular recess surrounded by the outer cylinder portion 31, the top surface portion 32, and the inner cylinder portion 33 of the cap body 21. The downward concave formed by the inverted U-shaped cross-section of FIG. 1 is fitted to the upper edge of the opening 12 of the container body 11, and a circular cross-section (even with a square cross-section (Possible) side wall portion 42. The inner cylinder 23 extends downward so that the side wall portion 42 extends along the inner wall surface of the opening portion 12 of the container main body 11 so as to protrude toward the inside of the container main body 11. Is provided with a circular (or square) bottom 43 for closing the bottom.
[0012]
However, as shown in FIG. 2 (A), the cap 20 opens a band-shaped curved flow opening 44 along the side wall 42 around the center of the bottom 43 at the bottom 43 of the inner cylinder 23. (The center of the curved length range of the flow port 44 in the circumferential direction around the center of the bottom 43) is positioned closer to the pouring side of the bottom 43. The flow port 44 extends in contact with the outer edge of the bottom 43 intersecting the side wall 42.
[0013]
The flow port 44 extends along at least a half circumference of the lower end inner peripheral surface (flow port 37) of the pouring cylinder 36 on the side closer to the pouring side. The opening area of the distribution port 37 is larger than the opening area of the distribution port 44.
[0014]
In the present invention, the “pour-out side” refers to the front side when the container 10 is tilted forward for pouring out, and the tip of the sharp pouring port 36A of the pouring cylinder 36 with respect to the center axis A of the cap 20. The side where the upper end B is located.
[0015]
According to the present embodiment, the following operations are provided.
(Action corresponding to claim 1)
{Circle around (1)} When the container body 11 is tilted forward toward the pouring side at the time of liquid pouring, a substantially central portion along the curve of the flow port 44 opened at the bottom 43 of the inner cylinder 23 of the cap 20 has a content. It is located near the pouring side of the bottom portion 43 where the flow of the liquid gathers, and the central portion along the curve of the flow opening 44 is a curved liquid pouring region, and both ends thereof are the air replacement regions. Therefore, the flow rate of the liquid is not excessively reduced by securing an opening area of a certain amount or more in the liquid discharging area, and the bottom 43 vertically above the curved liquid discharging area partially blocks the flow on the liquid surface side. It stops and prevents pouring out, so you can pour with confidence.
[0016]
{Circle around (2)} At the time of liquid refilling, almost the entire area along the curvature of the flow port 44 is used as a liquid injection area, a wide injection area is secured, and the injection flow rate at the time of refilling can be increased. The refilling liquid can be smoothly injected from the refilling container to the container 10, and the refilling liquid does not overflow from the circulation port 44 of the container 10 and contaminates the surroundings.
[0017]
(Action corresponding to claim 2)
{Circle around (3)} The curved flow opening 44 extends over at least half the circumference of the inner peripheral surface of the pouring cylinder 36 near the pouring side. Therefore, at the time of the liquid dispensing of the above (1), each of the curved liquid dispensing area and the air replacement areas on both ends thereof can be formed stably and reliably, and the pourability can be improved. Also, at the time of the liquid refilling in the above (2), a wide injection region can be formed stably and reliably, and the injection performance can be improved.
[0018]
According to the experimental results of the inventor, according to the example of the present invention in FIG. 2A in which the curved flow port 44 is provided in the bottom portion 43 of the inner cylinder 23, the container 10 is poured when the front inclination angle is 10 degrees or 20 degrees. It was confirmed that the flow rates were 71 mL / 10 sec and 84 mL / 10 sec, respectively, that no spillage occurred and that the injection flow rate of the refill liquid was 166 mL / 10 sec. On the other hand, in the comparative example of FIG. 2B in which the semicircular flow port 44 is provided at the bottom 43 of the inner cylinder 23, the refilling liquid can be injected at a flow rate of 181 mL / 10 sec. , 20 °, the flow rate was 19 mL / 10 sec and 41 mL / 10 sec, respectively.
[0019]
(2nd Embodiment) (FIG. 3, FIG. 4)
The difference between the container 50 of the second embodiment and the container 10 of the first embodiment is that, as shown in FIG. 3, the inner cylinder 23 of the cap 20 of the container 10 is removed to form the cap body 21 of the cap 20. The part of the inner cylinder part 33 and the partition part 35 is the inner cylinder 51 of the present invention.
[0020]
The inner cylinder 51 has a configuration in which the inner cylinder 33 and the partition 35 of the cap body 21 are formed as side walls 52, so that the side walls 52 extend along the inner wall surface of the opening 12 of the container body 11. It extends downward so as to protrude toward the inner side, and a circular (or square) bottom 53 for closing the side wall 52 and the pouring cylinder 36 is provided at the protruding end where the pouring cylinder 36 of the side wall 52 is erected. .
[0021]
As shown in FIG. 4, the cap 20 opens a band-shaped curved flow opening 54 along the side wall 52 at the bottom 53 of the inner cylinder 51, and a central portion (around the center of the bottom 53) along the curve of the flow opening 54. (The central portion of the curved length range of the circulation port 54 in the circumferential direction of the bottom 53) is positioned closer to the pouring side of the bottom 53. The flow port 54 extends in contact with an outer edge intersecting the side wall 52 of the bottom 53, in this embodiment, an inner peripheral surface of a lower end of the pouring cylinder 36.
[0022]
The circulation port 54 extends over at least half a circumference of the lower end inner peripheral surface of the pouring cylinder 36 near the pouring side.
According to the present embodiment, the same operation and effect as in the first embodiment are obtained.
[0023]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it is possible to prevent dripping and to increase the injection flow rate at the time of refilling the content liquid without reducing the flow rate at the time of discharging the content.
[Brief description of the drawings]
FIG. 1 is a sectional view of a main part showing a container of a first embodiment.
FIGS. 2A and 2B show a circulation port opened at the bottom of the inner cylinder, FIG. 2A is a schematic diagram showing an example of the present invention, and FIG. 2B is a schematic diagram showing a comparative example.
FIG. 3 is a cross-sectional view illustrating a main part of a container according to a second embodiment.
FIG. 4 is a schematic view showing a flow opening opened at the bottom of the inner cylinder.
[Explanation of symbols]
10, 50 Container 11 Container main body 20 Cap 23, 51 Inner cylinder 36 Discharge cylinder 42, 52 Side wall 43, 53 Bottom 44, 54 Curved circulation port
