JP2006264739A - Discharging opening for preventing pulsation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharging opening for preventing pulsation, which discharging opening is formed by breaking the score of a discharging cap, prevents pulsation or splash during the discharging of a liquid, is capable of steady discharge even when a large quantity of liquid is discharged, and can be used as a cap 1 that has a discharging opening formed in advance. <P>SOLUTION: The score 3 is formed on the top plate 2 of the cap 1 so as to follow the shape of the discharging opening. The discharging opening 10 is formed so as to be opened by breaking the score 3. A projection 4 is formed on the top plate 2 of the cap 1 so as to project in the direction of a lid Q. The projection 4 is provided with the score 3 for forming a vertically long discharging opening 10. The projection 4 is formed such that the substantially middle part 2B of the top plate 2, other than the area 2A near the circumferential edge of the top plate 2, projects in the direction of the cap Q. The score 3 is formed so that both the lengthwise ends of the discharging opening 10 extend to the area 2A that is near the circumferential edge of the top plate 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pulsation-preventing spout that can prevent pulsation or splashing of liquid that occurs when pouring liquid from a container at a spout attached to a container mouth such as a PET bottle or a bottle.

  Patent Document 1 discloses a pulsation prevention device that prevents pulsation of a poured liquid generated when a liquid is poured out from a plastic bottle. This anti-pulsation device has a bent tubular air passage inside the PET bottle spout and along the inner wall of the PET bottle, and allows air to flow from the bent tubular air passage to the inside of the PET bottle when liquid is poured out. Thus, the pulsation of the poured liquid can be prevented by controlling the replacement of the liquid and air at the bottleneck portion where the pulsation occurs.

  On the other hand, Patent Document 2 describes a spout for smoothly pouring a beverage poured out of a bottle. This spout has a structure that makes it easy to prevent the pulsation of the liquid when the bottle is directly attached to drink the beverage. According to the structure of the spout, the pulsation is prevented by providing a partition having an air hole for separating the liquid outflow part from the bottle and the air inflow part into the bottle inside the spout.

Furthermore, Patent Document 3 describes a pouring cap that enables liquid with a relatively low viscosity to be poured from the pouring spout at an appropriate flow rate, and improves liquid drainage from the pouring spout. This pouring cap has a configuration in which a nozzle element that is swung in a conical shape from the pouring spout is extended, and a nozzle that forms a clearance around the tip of the nozzle element is provided.
JP 2002-302122 A Japanese Patent No. 3520448 JP 2004-1836 A

  In any of these spout structures, liquid pulsation is prevented by providing other members inside or at the front end of the spout. For this reason, it has been difficult to adopt these conventional pouring structures for the scissors structure that uses the spout formed by breaking the score provided on the pouring pad.

  However, the structure in which the score of the pouring gutter is broken to form the pouring outlet is one of the types that are currently very often used as pouring gutters for PET bottles and bottles. There has been a demand for a structure that can prevent pulsation and splashing of liquid at the outlet.

  Therefore, as a result of studying the spout for breaking the score, the inventor has adopted a trough type in which the top plate for providing the score portion is recessed in the container direction and a flat type with a flat top plate. It has been found. Furthermore, as a result of verifying the liquid pouring state from the spout formed by breaking the score on the trough-type top plate, when breathing, there is a liquid around the opening edge of the spout. As a result of the transmission, two flows were generated, and it was found that this liquid flow was one of the causes of pulsation and splashing (see FIG. 6A).

  The present invention was created to solve the above-mentioned problems based on the research results, and in particular, at the spout formed by breaking the spout score, it prevents pulsation and splashing during liquid pouring. An object of the present invention is to provide a pulsation-preventing spout that enables stable pouring even when a large amount of liquid is poured out and can also be used as a casing 1 in which a spout 10 is formed in advance. .

  The first means of the present invention provides a score 3 formed along the shape of the spout 10 on the top plate 2 of the casing 1 attached to the container mouth P, and opens the score 3 by breaking the score 3. In the spout 10 that is formed, the top plate 2 of the housing 1 is provided with a protrusion 4 that protrudes in the liquid pouring direction, and the protrusion 4 is provided with a score 3 that forms a vertically long spout 10. The longitudinal lower end when the outlet 10 is used is the pouring hole 11, and the longitudinal upper end when the outlet 10 is used is the breathing portion 12.

  In the second means, the projecting portion 4 is provided by projecting the substantially central portion 2B leaving the peripheral edge vicinity 2A of the top plate 2 in the liquid pouring direction, and the pouring hole 11 and the breath connecting portion 12 The score 3 is provided so as to reach the peripheral edge vicinity 2A of the top plate 2.

  The third means forms the shape of the spout 10 in a vertically long substantially linear shape, forms the pouring hole 11 in a substantially circular shape wider than the width of the straight portion, and the breath connecting portion 12. Is formed so as to be slightly wider than the width of the straight line portion.

  The fourth means forms the spout 10 in a vertically long substantially linear shape, forms the pouring hole 11 in a substantially circular shape wider than the width of the straight portion, and the breath connecting portion 12. Is formed so as to be slightly wider than the width of the straight portion, and a substantially circular forming hole is provided in the longitudinal center of the spout 10.

  A fifth means is provided with a casing 1 to be attached to the container mouth portion P, and at a spout 10 formed on the top plate 2 of the casing 1, the top plate 2 of the casing 1 is placed in the liquid pouring direction. A protruding projection 4 is provided, a vertically long spout 10 is formed in the protruding portion 4, a lower longitudinal end when the spout 10 is used is a spout hole 11, and a long upper end when the spout 10 is used is breathed It is to be part 12.

  In the sixth means, the projecting portion 4 is provided by projecting a substantially central portion 2B leaving the peripheral edge vicinity 2A of the top plate 2 in the liquid pouring direction, and the pouring hole 11 and the breath connecting portion 12 are provided. Are formed so as to reach the vicinity 2 </ b> A of the peripheral edge of the top plate 2.

  The seventh means forms the spout 10 in a vertically long substantially linear shape, forms the pouring hole 11 in a substantially circular shape wider than the width of the straight portion, and the breath connecting portion 12. It is a means for solving the problem that the width of each is formed to be slightly wider than the width of the straight line portion.

  According to claim 1 of the present invention, in particular, it can be used for a spout formed by breaking a spout score. As a result, for example, as a hinged cap, it is a very popular type of extraction that extracts from low viscosity liquids such as soy sauce and noodle soup to high viscosity liquids such as yakiniku sauce and cooking oil. It has become possible to prevent pulsation at the time of liquid pouring in dredging.

  According to the second aspect, the pouring hole 11 and the breath connecting portion 12 provided in the projecting portion 4 are provided so as to reach the peripheral edge vicinity 2A of the top plate 2, so that the projecting portion of the spout 10 is a liquid guide. To fulfill the role of As a result, pulsation is prevented and the state at the time of liquid dispensing becomes stable.

  According to the third and fourth aspects, the pulsation is prevented and the state when the liquid is dispensed becomes extremely stable.

  According to the fifth aspect, the casing 1 in which the spout 10 is formed in advance can be attached to a container mouth portion such as a plastic bottle or a bottle to prevent pulsation during liquid discharge.

  According to the sixth and seventh aspects, even when used as the casing 1 in which the spout 10 is formed in advance, it is possible to prevent pulsation and make the state of liquid pouring extremely stable.

  As described above, according to the present invention, in particular, at the spout formed by breaking the spout score, the pulsation and splashing at the time of liquid pouring are prevented, and stable pouring can be performed even when a large amount of liquid is poured. This makes it possible to achieve excellent effects such as being able to be used as the casing 1 in which the spout 10 is formed in advance.

  In the best mode of the present invention, in the spout 10 opened by breaking the score 3, the score 3 formed along the shape of the spout 10 is provided on the top plate 2 of the casing 1. The top plate 2 is provided with a projecting portion 4 in which a substantially central portion 2B leaving the peripheral edge vicinity 2A of the top plate 2 is projected in the lid Q direction. The score 3 is provided on the projecting portion 4 such that both longitudinal end portions of the spout 10 reach the peripheral edge vicinity 2A of the top plate 2. The shape of the spout 10 formed by the score 3 is formed into a vertically long substantially linear shape. Further, the lower end portion when the spout 10 is used is a pour hole 11, the pour hole 11 is formed in a substantially circular shape wider than the width of the straight portion, and the upper end portion when the spout 10 is used is a breathing portion. 12, the width of the breath connecting portion 12 is formed so as to be slightly wider than the width of the straight line portion, thereby achieving the original purpose.

  In the present invention spout, for example, as shown in FIG. 1, the top plate 2 of the casing 1 attached to the container mouth portion P is provided with a score 3 according to the shape of the spout 10, and the score 3 is broken. It has been studied as a structure for preventing pulsation of liquid when pouring from the opened spout 10. In addition, as shown in FIG. 10, the pulsation preventing effect of the present invention can be used by attaching it to the mouth of a plastic bottle or a bottle as a casing 1 in which a spout 10 is formed in advance. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an embodiment showing a spout 10 formed in a casing 1 of a cap used as a so-called hinged cap, and a casing 1 made of a synthetic resin to be attached to a container mouth P and a hinge 7. And a lid Q that covers the casing 1. This housing 1 has a pouring cylinder 5 around the top plate 2, a score 3 formed along the shape of the spout 10 is provided on the top plate 2 of the housing 1, and a score is provided with a pull ring 6. It is opened by breaking 3. The top plate 2 of the housing 1 is provided with a protruding portion 4 protruding in the direction of the lid Q (see FIG. 2), and the score 3 provided on the protruding portion 4 is broken to form a vertically long spout 10 (See FIG. 1).

  The projecting portion 4 is provided by projecting a substantially central portion 2B in the vicinity of the peripheral edge 2A of the top plate 2 in the liquid dispensing direction (see FIG. 3). Further, when the score 3 is provided on the projecting portion 4, the longitudinal end portions of the spout 10 are provided so as to reach the peripheral edge vicinity 2 </ b> A of the top plate 2. At this time, the lower longitudinal end when the spout 10 is used is the spout 11, and the upper upper end when the spout 10 is used is the breathing portion 12.

  The reason why the projecting portion 4 projecting in the liquid pouring direction is provided on the top plate 2 of the casing 1 is based on the result of Test 1 (see FIG. 4). In this test 1, the top plate 2 formed on the housing 1 is formed with a valley type and a flat type of a conventional shape, and a mountain type of the projection 4 of the present invention, and is attached to a plastic bottle and liquid (soy sauce) is formed. This is a test comparing the dispensing and pulsation width with the splash of liquid. In this test, the shape of the spout 10 is unified to the shape shown in FIG. 3, the liquid is poured out at a flow rate at which a 1 liter PET bottle is tilted and breathing occurs, The outflow width (lateral width b) shown in FIG. 5 was measured. Both widths measure the width 3cm below the spilled liquid.

表1は、従来形状の谷タイプと平タイプ（180゜）の結果を示している。この結果、従来の谷タイプでは、脈動幅（縦幅ａ）が28mmで、表２に示す山タイプの脈動幅（縦幅ａ）10〜14 mmの２倍以上にもなり、流出時の液体の跳ねも多かった。一方、従来の平タイプは、谷タイプよりもまとまって流出するようになったが、脈動幅（縦幅ａ）は大きく、液体の跳ねも多くなるといった結果になっている。 The results are shown in Tables 1 and 2. In the evaluation of the test, the pulsation width of the liquid, the splash of the liquid, the way of breathing, and the condition of unity were comprehensively evaluated, and ◎ was very good, ○ was good, Δ was normal, and x was bad.

Table 1 shows the results of the conventional valley type and flat type (180 °). As a result, in the conventional valley type, the pulsation width (vertical width a) is 28 mm, which is more than twice the peak type pulsation width (vertical width a) 10-14 mm shown in Table 2, and the liquid at the time of outflow There were also many jumps. On the other hand, the conventional flat type came to flow out more collectively than the valley type, but the pulsation width (longitudinal width a) was larger and the liquid splashed more.

表２は、本発明突出部４の山タイプの結果を示している。この山タイプは更に、突出部４の角度や形状を変えた（90゜）タイプ、（150゜）タイプ、半球タイプ、円錐タイプを設け、各山タイプの試験を行った。この結果、本発明の山タイプでは、突出部４の角度や形状にかかわらず、脈動幅（縦幅ａ）が谷タイプや平タイプよりも小さくなっていることがわかる。また、液体がまとまって流出し、跳ねも少なかった。

Table 2 shows the result of the mountain type of the protrusion 4 of the present invention. This mountain type is further provided with a (90 °) type, (150 °) type, hemispherical type, and conical type in which the angle and shape of the protrusion 4 are changed, and each mountain type was tested. As a result, in the mountain type of the present invention, it can be seen that the pulsation width (vertical width a) is smaller than that of the valley type and the flat type regardless of the angle and shape of the protrusion 4. In addition, the liquid spilled together and there was little splashing.

  In the test 1, when the state of the upper and lower ends when the spout 10 is used is further observed, in the conventional valley type, liquid is transferred from the upper end of the spout 10 to the top plate 2 further upward at every breathing. (See Fig. 6 (a)). As a result, the flow of the liquid is divided into two at the lower end of the spout 10, so that the amplitude is twice or more wider than that of the mountain type shown in FIG. On the other hand, in the mountain type shown in FIG. 7 (b), the liquid is not transmitted from the upper end of the spout 10 to the upper top plate 2 even if breathing is performed, and the entire flow is always united. . A continuous photograph showing the results is shown in FIG. In the figure, (i) shows a conventional valley type, (b) shows a mountain type of the present invention, and the poured liquid is soy sauce.

表３は、突出部４の上面が注出筒体５の上端よりも上方へ2.5mm突出した状態を計測した結果を示している（図８参照）。この結果、注出筒体５がなくても液体のまとまりが良く、脈動幅（縦幅ａ）が小さいことが分かった。 Next, Test 2 was performed on the relationship between the protruding portion 4 and the dispensing cylinder 5 (see FIGS. 8 and 9). In this test 2, the liquid was poured by changing the length (h) from the upper end of the dispensing cylinder 5 to the upper surface of the protrusion 4, and the pulsation width (vertical width a) shown in FIG. (Width b). The results are shown in Tables 3 and 4. The measurement conditions in this test are the same as those in Test 1.

Table 3 shows the result of measuring a state in which the upper surface of the protruding portion 4 protrudes 2.5 mm upward from the upper end of the dispensing cylinder 5 (see FIG. 8). As a result, it was found that even without the dispensing cylinder 5, the liquid was well organized and the pulsation width (vertical width a) was small.

表４は、注出筒体５の上端よりも突出部４の表面が下方に位置する状態で計測した結果を示している（図９参照）。この結果、突出部４の高さと注出筒体５の上端とが一致する（０）の状態から、突出部４が注出筒体５の上端より3mm低くなった状態（-3.0）の状態までについては脈動幅（縦幅ａ）が15mmと小さく、（横幅ｂ）も6 mm〜7 mmと非常に良い評価になっている。

Table 4 shows the results of measurement in a state where the surface of the protruding portion 4 is positioned below the upper end of the dispensing cylinder 5 (see FIG. 9). As a result, the state in which the height of the protruding portion 4 and the upper end of the dispensing cylinder 5 coincide with each other (0), and the protruding portion 4 is 3 mm lower than the upper end of the dispensing cylinder 5 (-3.0). The pulsation width (vertical width a) is as small as 15 mm, and (horizontal width b) is also very good evaluation of 6 mm to 7 mm.

  As a result of Test 2 regarding the relationship between the protruding portion 4 and the dispensing cylinder 5, the pulsation preventing effect and the splash preventing effect of the present invention are determined by the shape of the protruding portion 4 provided on the top plate 2 and the vertically long spout 10. Although it is necessary and general use of the dispensing cylinder 5 is not hindered, it has been found that the dispensing cylinder 5 that is too long is not suitable for preventing pulsation due to the dimensional standard of the cap.

  Next, Test 3 was performed on the shape of the spout 10 (see Tables 5 and 6). This test is a test conducted to obtain the most effective shape in the vertically long spout 10. The measurement conditions in this test are the same as those in Tests 1 and 2.

表５は、本発明の山タイプに各形状の注出口１０を形成し、液体注出時の脈動幅や跳ね等を計測したものである。この結果、注出口１０の最適形状は、表５に示すNo.９の形状であることが分かった。すなわち、注出口１０の注ぎ孔１１を直線部分の幅よりも拡開した略円形状に形成し、且つ、注出口１０使用時の上端部を息継ぎ部１２とし、該息継ぎ部１２の幅を直線部分の幅よりも僅かに拡開するように形成した形状である（図３参照）。また、No.９の効果は、詮体１成形時に形成される成形孔を注出口１０の長手中央に設けたNo.８の場合でも劣化しないことが確認できた（表５参照）。更に、注出口１０の注ぎ孔１１を直線部分の幅よりも拡開した略円形状に形成したNo.７の場合でも、流出量が若干、劣るだけで、液体注出時の脈動や跳ねを防止している。

Table 5 shows the measurement of the pulsation width and splashing at the time of liquid extraction by forming the spout 10 of each shape in the mountain type of the present invention. As a result, it was found that the optimum shape of the spout 10 was the shape of No. 9 shown in Table 5. That is, the pouring hole 11 of the spout 10 is formed in a substantially circular shape that is wider than the width of the straight portion, and the upper end when the spout 10 is used is the breath connecting portion 12, and the width of the breath connecting portion 12 is linear. It is the shape formed so that it might expand slightly rather than the width | variety of a part (refer FIG. 3). Further, it was confirmed that the effect of No. 9 was not deteriorated even in the case of No. 8 in which the molding hole formed at the time of molding the casing 1 was provided at the longitudinal center of the spout 10 (see Table 5). Furthermore, even in the case of No. 7 in which the pouring hole 11 of the spout 10 is formed in a substantially circular shape that is wider than the width of the straight line portion, the outflow amount is only slightly inferior, and pulsation or splashing during liquid pouring is caused. It is preventing.

  Further, it has been found that when the spout 10 formed in the protruding portion 4 is basically vertically long, the liquid can be prevented from splashing in any shape. In particular, the shape of No. 5 in which the shape of the spout 10 is formed in a substantially straight strip shape, and the shape of No. 6 in which the pouring hole 11 and the breath connecting portion 12 are formed in a substantially circular shape wider than the width of the straight portion. As for the shape and the like, the pulsation width (vertical width a) is small and the splash of the liquid is also small, and good evaluation is obtained.

表６は、従来の谷タイプに各形状の注出口１０を形成し、液体注出時の脈動幅や跳ね等を計測したものである。この結果、注出口１０の形状が同一でも、本発明の山タイプと同じ効果は得られないことが証明された。

Table 6 shows the measurement of the pulsation width, splashing, and the like at the time of liquid extraction by forming the spout 10 of each shape in the conventional valley type. As a result, it was proved that even if the shape of the spout 10 is the same, the same effect as the mountain type of the present invention cannot be obtained.

  As described above, according to the results of Tests 1 to 3, it is proved that the spout of the present invention can prevent pulsation and splash at the time of liquid pouring at the spout formed by breaking the score of the spout. Yes.

  Moreover, this invention spout can be used even if it mounts | wears with the opening part of a plastic bottle or a bottle as the housing 1 which formed the spout 10 previously. That is, it can be used also as the spout 10 formed in the housing 1 attached to the container mouth P (see FIG. 10). In the illustrated example, a case 1 is shown in which a casing 1 that fits around the container mouth P is provided, and an extraction cylinder 5 is provided around the top plate 2. Or the housing 1 of the type which does not provide the extraction | pouring cylinder 5 around the top plate 2 may be sufficient, and the shape and material of the housing 1 can be changed arbitrarily. Also in this embodiment, the top plate 2 of the housing 1 is provided with the protruding portion 4 protruding in the cap direction, and the vertically long spout 10 is formed in the protruding portion 4.

  Similarly to the spout 10 formed by removing the score 3 described above, the projecting portion 4 is also provided by projecting a substantially central portion 2B in the vicinity of the peripheral edge 2A of the top plate 2 in the cap direction. The spout hole 11 of the spout 10 and the breathing portion 12 are formed so as to reach the vicinity 2 </ b> A of the peripheral edge of the top plate 2.

  Furthermore, the shape of the spout 10 is also formed into a vertically long substantially linear shape, and the lower end portion when the spout 10 is used is a pour hole 11, and the pour hole 11 is expanded wider than the width of the straight portion. The shape formed in is optimal.

  In addition, each structure of the example of illustration in this invention is only one Example of this invention, and adapts to the spout 10 formed by breaking the score 3 of the housing 1, the spout 10 formed previously, etc. Needless to say, it can be freely changed within the scope not changing the gist of the present invention, such as a design change of each shape and size of the housing 1, a change of material, and a change of usage.

It is a disassembled perspective view which shows one Example of this invention. It is a sectional side view which shows one Example of this invention. It is a top view which shows one Example of this invention. It is a figure which shows the position which measures (vertical width a) of this invention. It is a figure which shows the position which measures (horizontal width b) of this invention. It is a figure which shows the condition of the upper-and-lower-ends part at the time of use of a spout, (A) shows the conventional valley type, (B) shows the mountain type of this invention. It is a continuous photograph which shows the pouring situation of the present invention and a conventional product, (A) shows a conventional valley type, and (B) shows a mountain type of the present invention. It is a sectional side view of the protrusion part which measured the data shown in Table 3. FIG. It is a sectional side view of the protrusion part which measured the data shown in Table 4. FIG. It is a perspective view which shows the other Example of this invention.

Explanation of symbols

P Container mouth
Q Lid 1 Housing 2 Top plate 3 Score 4 Projection 5 Projection cylinder 6 Pull ring 7 Hinge 10 Spout 11 Pour hole 12 Breath joint

Claims (7)

  A score formed along the shape of the spout is provided on the top plate of the casing to be attached to the container mouth, and the liquid pouring is applied to the top plate of the casing at the spout opened by breaking the score. Protrusions projecting in the exit direction are provided, and a score for forming a vertically long spout is provided in the projecting part, the lower longitudinal end when the spout is used is a pouring hole, and the upper longitudinal end when the spout is used A pulsation-preventing spout characterized by being a breathing part.   The projecting portion is provided by projecting a substantially central portion leaving the vicinity of the peripheral edge of the top plate in the liquid pouring direction so that the pouring hole and the breathing portion reach the vicinity of the peripheral edge of the top plate. The pulsation-preventing spout according to claim 1, wherein the score is provided.   The shape of the spout is formed in a vertically long substantially linear shape, the pouring hole is formed in a substantially circular shape that is wider than the width of the straight portion, and the width of the breathing portion is larger than the width of the straight portion. The pulsation preventing spout according to claim 1 or 2, wherein the spout is formed so as to expand slightly.   The shape of the spout is formed in a vertically long substantially linear shape, the pouring hole is formed in a substantially circular shape that is wider than the width of the straight portion, and the width of the breathing portion is larger than the width of the straight portion. The pulsation-preventing spout according to claim 1 or 2, wherein the spout is formed so as to expand slightly, and a substantially circular forming hole is provided at the longitudinal center of the spout.   Provided with a housing to be attached to the container mouth, and at the spout formed in the top plate of the housing, the top plate of the housing is provided with a projecting portion projecting in the liquid pouring direction, and the projecting portion has a vertically long shape. A pulsation-preventing spout characterized in that a spout is formed at the lower end when the spout is used, and a breathing portion is formed at the upper end when the spout is used.   The projecting portion is provided by projecting a substantially central portion that leaves the vicinity of the peripheral edge of the top plate in the liquid pouring direction, so that the pouring hole and the breathing portion reach the vicinity of the peripheral edge of the top plate. The pulsation preventing spout according to claim 5 formed in the above. The shape of the spout is formed in a vertically long substantially linear shape, the pouring hole is formed in a substantially circular shape that is wider than the width of the straight portion, and the width of the breathing portion is larger than the width of the straight portion. The pulsation-preventing spout according to claim 5 or 6, which is formed so as to expand slightly.

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