JP2015214348A - Cap and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap capable of minimally restraining the occurrence of liquid dripping when finishing to pour liquid, and capable of also minimally restraining flowing-down of the liquid on an outer peripheral surface of a cap body and the outside of a container.SOLUTION: A cap comprises a cap body 11 installed in a port part 2 of a container 1 for storing liquid, and the cap body 11 comprises an injection cylinder part 21 and a liquid guiding part 25 for guiding the liquid of flowing along an inner wall surface of this injection cylinder part 2, and the liquid guiding part 25 is provided in a part in the circumferential direction to the injection cylinder part 21 in a state of opening a clearance to this injection cylinder part 21, and is constituted so that the liquid held in the clearance between the liquid guiding part 25 and the injection cylinder part 21 can be pulled back to the container 1 side from the inside of the injection cylinder part 21 when returning the container 1 to an erecting attitude from a tilting attitude.

Description

  The present invention relates to a cap attached to a mouth portion of a container such as a bottle in which a liquid is stored.

  In a container such as a bottle that contains a liquid such as a seasoning, a cap is often attached to the upper end of the container. The cap has a structure that includes a cap body that is attached to the mouth portion of the container and has an extraction tube portion, and an open / close lid that opens and closes an outlet port of the cap body (an opening portion of the discharge tube portion). It is common.

  In a container equipped with a cap having this type of dispensing cylinder, when the container is returned from the tilted position to the standing position and the liquid in the container is completely poured, a dripping occurs from the tip of the dispensing cylinder, and the cap The outer peripheral surface of the main body may be soiled. In addition, a place other than the place where the liquid is to be poured (place to be dispensed), such as a table, may be soiled.

  As a cap that can reduce the contamination of places other than the liquid extraction target portion, for example, there is a discharge tap disclosed in Patent Document 1. As shown in FIGS. 19 to 21, in the spout 50, the spout cylinder part is disposed over the entire outer periphery of the spout cylinder part 52 that pours the liquid S in the cap body 51 attached to the container Y such as a bottle. An auxiliary outer cylinder 53 having a height lower than 52 is formed, and a gap 54 is formed over the entire circumference between the dispensing cylinder portion 52 and the auxiliary outer cylinder 53.

  21 (a) and 21 (b), when the liquid S is completely poured, even if a liquid dripping S 'occurs from the tip of the dispensing cylinder 52, the liquid dripping S' has a surface tension ( Capillary phenomenon) enters and holds the gap 54 between the dispensing cylinder 52 and the auxiliary outer cylinder 53. Thereby, it is intended that the dripping S ′ can be prevented from falling to a place other than the liquid extraction target portion such as a table and becoming dirty.

Japanese Utility Model Publication No. 63-40473

  However, in the cap (pour-out stopper) disclosed in Patent Document 1, an auxiliary outer cylinder 52 having a height lower than that of the pour cylinder 51 is formed outside the pour cylinder 51 from which the liquid is poured. The structure is such that a gap 53 is formed between the extraction cylinder part 51 and the auxiliary outer cylinder 52, and the extraction cylinder part 51, the auxiliary outer cylinder 52 and the gap 53 are formed over the entire circumference. For this reason, when the liquid dripping S ′ is gradually accumulated and stacked in the gap 53 and the gap 53 is filled with the liquid dripping S ′, the outer peripheral surface of the cap body 51, the outside of the container, etc. The dripping S ′ adheres along the surface and flows down, and as a result, it may adhere to a finger or the like. Further, since the dripping S 'adheres to the outer peripheral surface of the cap body 51, the outer side of the container, etc., the appearance is remarkably lowered and it is unsanitary.

  The present invention solves the above-mentioned problems, can minimize the occurrence of dripping at the end of pouring the liquid, and minimizes the liquid flowing down to the outer peripheral surface of the cap body or the outside of the container. An object of the present invention is to provide a cap that can be suppressed to the limit and a method for manufacturing the same.

  In order to solve the above-described problems, a cap of the present invention includes a cap body that is attached to a mouth portion of a container in which a liquid is stored, and the cap body includes a dispensing cylinder part and an inside of the dispensing cylinder part. A liquid guiding part for guiding the liquid flowing along the wall surface, and the liquid guiding part is in a part of the circumferential direction with respect to the dispensing cylinder part with a gap with respect to the dispensing cylinder part When the container is returned from the tilted position to the standing position, the liquid held in the gap between the liquid guiding part and the dispensing cylinder part can be pulled back from the inside of the dispensing cylinder part to the container side. It is comprised by these. The liquid guide part is preferably formed so as to elongate upward or obliquely upward, and further, the liquid guide part is formed so that the tip of the liquid guide part protrudes beyond the tip edge of the dispensing cylinder part. It is more preferable.

  With this configuration, since the liquid guiding part is provided with a gap with respect to the dispensing cylinder part, when the container is returned to the standing position where pouring is finished from the tilted position where the liquid is poured, the pouring is finished. Even when the liquid is about to drip, it is pulled and temporarily held by the gap due to the surface tension due to the gap between the liquid guiding portion and the dispensing cylinder portion. In addition, since the liquid guide part is provided only in a part in the circumferential direction with respect to the dispensing cylinder part, when the container is returned to the standing posture, the liquid guiding part is disposed between the liquid guiding part and the dispensing cylinder part. The liquid held in the gap can be pulled back from the inside of the dispensing cylinder part to the container side. Thereby, when pouring the liquid, it is possible to minimize the liquid dripping from the cap body or the liquid dripping on the outer peripheral surface of the cap body.

  In addition, an opening for pouring liquid into the cap body is formed, and an elongated hole-shaped part that is long in a predetermined direction when viewed in plan is formed as an opening, and in a direction along the direction in which the elongated hole-shaped part is formed long The liquid guiding part may be provided. According to this configuration, when the container is erected after pouring of the liquid, the liquid held in the gap between the liquid guide portion and the extraction tube portion is shaped like a long hole in the opening from the inside of the extraction tube portion. It is pulled back well into the container through the section.

  Moreover, you may provide as a said liquid guide part in the state which opened the clearance gap inside (diameter direction inner side) from the said extraction cylinder part. In this case, when the liquid is completely poured, after the liquid is accumulated in the gap between the dispensing cylinder part and the liquid guiding part inside the dispensing cylinder part, the inside of the dispensing cylinder part The liquid will flow down into the container along the wall surface. Therefore, it is possible to minimize the liquid dripping from the cap body or the liquid dripping on the outer peripheral surface of the cap body.

  Further, in this configuration, the liquid guiding part is connected to the dispensing cylinder part by the connection part, and the gap between the dispensing cylinder part and the liquid guiding part is from the direction along the circumferential direction of the dispensing cylinder part. As seen, it may be formed so that it becomes narrower as it gets closer to the connecting portion (that is, it becomes narrower as it goes downward). According to this configuration, when pouring of the liquid is finished, the liquid that has accumulated in the gap is easily drawn into the connecting portion side, and it is more difficult for the liquid to drip.

  Further, in the configuration in which the liquid guiding part is provided with a gap inside (diameterly inner side) from the dispensing cylinder part, the connecting part between the dispensing cylinder part and the liquid guiding part is the pouring part. You may form in the cross-sectional shape which inclines so that the one side or both sides may become a lower side seeing from the direction orthogonal to the circumferential direction of a protruding cylinder part. According to this configuration, when the container is erected after pouring of the liquid, the liquid that has accumulated in the gap between the extraction cylinder part and the liquid guide part is reduced in the inner wall surface of the extraction cylinder part. It flows down satisfactorily along the surface inclined downward of the connecting portion between the dispensing tube portion and the liquid guiding portion.

  In addition, the liquid guide part may be provided in a state where a part of the dispensing cylinder part in the circumferential direction is cut out and a gap is provided between the cut out parts. In this case, when the liquid is finished pouring, the liquid is stored in a gap between the dispensing cylinder part and the liquid guiding part provided between the notch parts of the dispensing cylinder part, and then the pouring is performed. The liquid can be configured to flow down into the container along the inner wall surface of the outlet tube portion. Therefore, it is possible to suppress the liquid from dripping from the cap body or the liquid from dripping and adhering to the outer peripheral surface of the cap body.

  In this configuration, the gap between the dispensing cylinder part and the liquid guiding part is formed with substantially the same width in the vertical direction as viewed from the direction perpendicular to the circumferential direction of the dispensing cylinder part, or the lower connection It is good to make it the shape which becomes so narrow that it approaches a part.

  Further, in this configuration, when the cross-sectional shape of the connection portion between the extraction tube portion and the liquid guide portion is inclined so that the inner diameter side is downward when viewed from the direction along the circumferential direction of the extraction tube portion. preferable. According to this configuration, when the container is erected after pouring of the liquid, the liquid accumulated in the gap between the extraction tube portion and the liquid guide portion is changed to the discharge tube portion and the liquid guide portion. Along the surface inclined so that the inner diameter side of the connecting portion is downward, it flows down well to the inner wall surface side of the extraction tube portion. It is possible to minimize the liquid dripping from the cap body or the liquid dripping on the outer peripheral surface of the cap body.

  Further, in the configuration in which the liquid guide portion is provided in a state in which a part of the extraction tube portion in the circumferential direction is cut out and a gap is provided between the cut-out portions, the liquid guide portion is more than the discharge tube portion. You may provide in the state which opened the clearance gap also inside. In this case, a gap between the dispensing cylinder part and the liquid guiding part is formed in the circumferential direction and the radial direction of the dispensing cylinder part, and more liquid is temporarily stored in the gap. Can be stored.

  Further, the present invention is a method of manufacturing a cap having this configuration, which is divided into a radial direction of the cap body as a mold for forming a dispensing cylinder part and a liquid guiding part in a cavity into which resin is injected. A mold having a split mold that forms an inner diameter side from the pouring cylinder part and a split mold that forms an outer diameter side from the pouring cylinder part is used, and is formed by these split molds. The portion where the dispensing cylinder part and the liquid guiding part are formed in the cavity to be formed are formed at the same diameter position, and after the resin is injected into the cavity, the inner diameter side is formed with respect to the dispensing cylinder part. The split mold is separated earlier than the split mold that forms the outer diameter side of the dispensing cylinder part, and the liquid guide part is formed in a shape extending radially inward from the dispensing cylinder part. It is characterized by doing. With this manufacturing method, it is possible to relatively easily manufacture a cap in which the gap between the dispensing cylinder part and the liquid guiding part is formed in the circumferential direction and the radial direction of the dispensing cylinder part.

  According to the present invention, by providing the liquid guiding part for guiding the liquid flowing along the inner wall surface of the dispensing cylinder part in a part of the circumferential direction with respect to the dispensing cylinder part, the pouring is finished from the tilting posture in which the liquid is poured. When the container is returned to the standing posture, the liquid that is about to drip is held in the gap between the liquid guiding portion and the dispensing cylinder, and the liquid is drawn back from the inside of the dispensing cylinder to the container side. . Thereby, when pouring the liquid, it is possible to minimize the liquid dripping from the cap body or the liquid dripping on the outer peripheral surface of the cap body. Therefore, the liquid does not flow down while adhering along the outer peripheral surface of the cap main body or the outer side of the container, or adheres to the finger or the like, which is sanitary and improves convenience.

  In addition, according to the present invention, since the liquid guiding part is formed with a gap with respect to the dispensing cylinder part, the user of the container wearing this cap can easily see the liquid guiding part. Therefore, when the container is tilted, the user is encouraged to tilt the container in a suitable cap orientation with the location where the liquid guiding portion is formed on the lower side (the direction to be tilted). In other words, dripping can be further prevented (that is, the liquid can be drained well). Further, as the liquid guide part, if the liquid guide part is formed so as to be elongated in an upward or obliquely upward direction, or the tip of the liquid guide part is formed so as to protrude beyond the tip edge of the dispensing cylinder part, the liquid When pouring the liquid, the liquid is guided well by the liquid guiding portion, and the user of the container can more easily visually recognize the liquid guiding portion, so that the user can easily become a mark when pouring and the convenience is improved.

  In addition, a long hole-shaped portion is formed as an opening for pouring liquid into the cap body, and by providing a liquid guiding portion in the direction along which the long hole-shaped portion is formed long, the liquid has been poured. When the container is erected, the liquid held in the gap between the liquid guiding part and the dispensing cylinder part is pulled back very well into the container from the inside of the dispensing cylinder part through the long hole-shaped part in the opening. be able to.

  In addition, by providing the liquid guiding part with a gap inside the dispensing cylinder part, when pouring the liquid, the dispensing cylinder part and the liquid guiding part inside the dispensing cylinder part are arranged. The liquid accumulated in the gaps between them can be guided well so as to flow down into the container along the inner wall surface of the dispensing cylinder part.

  Further, in this configuration, a cross-sectional shape in which the gap between the dispensing cylinder part and the liquid guiding part becomes narrower toward the connecting part side when viewed from the direction along the circumferential direction of the dispensing cylinder part (that is, downward) When the liquid is completely poured, the liquid that has accumulated in the gap is easily drawn into the connecting portion side, and the liquid dripping is less likely to occur.

  Further, in the configuration in which the liquid guiding portion is provided with a gap inside the dispensing tube portion, the connecting portion between the dispensing tube portion and the liquid guiding portion is orthogonal to the circumferential direction of the dispensing tube portion. The liquid accumulated in the gap between the extraction tube portion and the liquid guide portion is formed by forming a cross-sectional shape that is inclined so that one side or both sides are downward when viewed from the direction of It can flow well along the surface of the inner wall surface of the dispensing tube portion that is inclined downwardly from the connecting portion between the dispensing tube portion and the liquid guiding portion, thereby improving the reliability.

  In addition, a part of the dispensing cylinder part in the circumferential direction is notched, and the liquid guiding part is provided in a state having a gap between the notch parts. It can be suppressed to a small extent that it hangs down and adheres to the outer peripheral surface.

  Further, in this configuration, the cross-sectional shape of the connection portion between the extraction tube portion and the liquid guide portion is inclined so that the inner diameter side is downward when viewed from the direction along the circumferential direction of the extraction tube portion. Thus, when the liquid is finished pouring and the container is erected, the liquid accumulated in the gap between the dispensing cylinder part and the liquid guiding part is favorably disposed on the inner wall surface side of the dispensing cylinder part. It can be washed away.

  Further, in the configuration in which the liquid guide portion is provided in a state in which a part of the extraction tube portion in the circumferential direction is cut out and a gap is provided between the cut-out portions, the liquid guide portion is more than the discharge tube portion. By providing a gap on the inner side, a larger amount of liquid can be temporarily stored in the gap, and the dripping prevention effect and the drainage improvement effect can be further improved. In this case, since the gap between the liquid guide portion and the dispensing cylinder portion is formed closer to the inside in the radial direction, the liquid accumulated in the gap enters the container along the inner wall surface of the dispensing cylinder portion. There is also an advantage that it is easy to flow down.

  Further, by separating the split mold that forms the inner wall surface of the pouring cylinder part earlier than the split mold that forms the outer wall surface of the pouring cylinder part, the pouring cylinder part and the liquid guiding part Caps in which the gaps between them are formed in the circumferential direction and the radial direction of the dispensing cylinder part can be manufactured relatively easily and efficiently.

It is side surface sectional drawing of the cap main body which concerns on the cap of the 1st Embodiment of this invention, and shows the state closed about the opening-and-closing lid | cover of the cap with the virtual line. It is a top view of the cap main body concerning the cap. In the perspective view of the cap, the state which has opened the opening-and-closing lid with respect to the cap main body with which the opening part was opened is shown. It is a principal part expanded side surface sectional view of the cap main body which concerns on the same cap. (A)-(c) is the principal part front expanded sectional view of the connection part of the extraction | injection cylinder part and liquid induction | guidance | derivation part in the same cap, respectively, and its vicinity, (b) and (c) show a modification. In addition, (a) is a principal part front expanded sectional view seen from the AA line of FIG. It is a principal part expanded side surface sectional view of the cap main body of the modification of the 1st Embodiment of this invention. It is side surface sectional drawing of the cap of the 2nd Embodiment of this invention, and the state (initial state before use) which has opened and closed the lid is shown. The side sectional view of the cap shows a state in which the open / close lid is closed. The top view of the cap shows a state where the open / close lid is opened (an initial pre-use state). It is a principal part expanded side surface sectional view of the cap main body which concerns on the same cap. It is side surface sectional drawing of the cap main body which concerns on the cap of the 3rd Embodiment of this invention, and shows the state closed about the opening-and-closing lid | cover of the cap with the virtual line. It is a top view of the cap main body concerning the cap. In the perspective view of the cap, the state which has opened the opening-and-closing lid with respect to the cap main body with which the opening part was opened is shown. (A) And (b) is the principal part front expanded sectional view and principal part side expanded sectional view of the connection part of the extraction | injection cylinder part and liquid induction | guidance | derivation part in the cap, and its vicinity. (A) And (b) is the principal part side surface expanded sectional view and principal part plane expanded sectional view of the connection part of the extraction cylinder part and liquid guidance | induction part in the modification of the cap, and its vicinity. In addition, (a) is a principal part side surface expanded sectional view seen from the BB line of (b). (A) And (b) is the principal part side surface expanded sectional view and principal part plane expanded sectional view of the connection part of the extraction | injection cylinder part and liquid induction | guidance | derivation part in the other modification of the cap, and its vicinity. In addition, (a) is a principal part side surface expanded sectional view seen from the CC line of (b). (A)-(c) is principal part side sectional drawing which shows simply the manufacturing process of the cap shown to Fig.16 (a) and (b). It is a principal part front expanded sectional view of the connection part of the extraction pipe | tube part and liquid guidance | induction part in the further another modification of the cap, and its vicinity. It is principal part side surface sectional drawing of the conventional cap. It is a top view of the conventional cap (cap body). (A) And (b) is principal part side surface sectional drawing of the same cap, (a) shows the state before pouring finish, (b) shows the state at the time of pouring finish.

Hereinafter, caps according to embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1 and the like, a cap 10 according to an embodiment of the present invention is formed of a synthetic resin such as polyethylene having an elastically deformable property, and the cap body 11 is composed of a cap body 11 and a hinge portion 12. The opening / closing lid 13 coupled to the is integrally formed. The cap body 11 is mounted and fixed to the mouth 2 at the upper end of the bottle 1 as a container by being plugged. The bottle 1 is formed of a material harder than the cap 10 such as glass or polyethylene terephthalate.

  The cap body 11 has an annular skirt wall 14 having a projection 15 formed along the inner peripheral surface, and the skirt wall 14 is fitted on the mouth 2 of the bottle 1. In addition, an inner ring 16 is integrally formed on the cap body 11, and the cap 10 is attached to the bottle 1 in a state where the inner ring 16 enters the inside of the mouth 2 at the upper end of the bottle 1.

  The upper edge portion of the inner ring 16 in the cap body 11 is connected to the upper edge portion of the skirt wall 14, and the outer peripheral diameter thereof is formed to be a little smaller and elastic with respect to the lower peripheral edge portion of the opening / closing lid 13. The cap main body 11 is connected to the outer periphery of the upper surface portion 17 provided in a disk shape.

  An opening forming wall 18 for forming an opening 23 (see FIG. 3) for pouring the liquid (contents) in the bottle 1 in the central portion of the cap body 11 and the vicinity thereof, and the opening forming wall A pull ring 19 for pulling up and separating the portion 18 is integrally provided. The score 20 is formed along the contour of the opening forming wall portion 18 to be thin, and when the pull ring 19 is pulled up with fingers, the thin portion where the score 20 is formed breaks, and the opening forming wall The part 18 falls off from the cap body 11, thereby forming an opening 23 for pouring the liquid in the bottle 1.

  A cylindrical pouring tube portion 21 is provided around the opening forming wall portion 18 and the pull ring 19, and a pouring spout from the bottle 1 is formed by the pouring tube portion 21. A cylindrical seal wall 22 is integrally formed on the inner periphery of the opening / closing lid 13. The seal wall 22 enters the inside of the dispensing cylinder portion 21 when the opening / closing lid 13 is closed as indicated by a virtual line in FIG. Then, the dispensing tube portion 21 and the seal wall 22 are elastically pressed against each other, whereby sealing is performed when the open / close lid 13 is closed.

  In addition to the above configuration, the liquid (contents) that flows along the inner wall surface of the dispensing cylinder portion 21 is guided to the cap body 11 of the cap 10 according to the present embodiment, as shown in FIGS. The liquid guiding part 25 is integrally formed. The liquid guiding portion 25 is partly in the circumferential direction with respect to the dispensing tube portion 21 (specifically, the portion of the dispensing tube portion 21 opposite to the hinge portion 12 of the cap 10). It is provided in a state where a gap (specifically, a gap that generates surface tension) is opened with respect to the portion 21. Then, when the bottle 1 is returned to the standing posture in which the liquid is poured from the tilting posture in which the liquid is poured by the liquid guiding portion 25, the liquid is held in the gap 26 between the liquid guiding portion 25 and the dispensing cylinder portion 21. The liquid is configured to be able to be pulled back from the inside of the dispensing cylinder portion 21 to the bottle 1 side.

  Here, in the cap 10 according to the first embodiment shown in FIG. 1 to FIG. 5 and the like, the liquid guiding part 25 is in a state where a gap 26 is opened on the inner side (radially inner side) than the dispensing cylinder part 21. Is provided. Further, the liquid guiding portion 25 is connected to a part in the circumferential direction of the dispensing tube portion 21 (specifically, in this embodiment, the inner surface portion at the front end position of the dispensing tube portion 21) at the base portion. Yes. Then, the liquid guide portion 25 is formed so as to extend elongated from the connection portion 27 with the dispensing cylinder portion 21 in a state where a gap 26 is opened on the inner side (inner diameter side) than the dispensing cylinder portion 21. The leading end of the liquid guiding portion 25 is formed so as to protrude upward to substantially the same height as the leading end edge of the dispensing tube portion 21. Note that the width of the liquid guiding portion 25 is, for example, 1 to 2 mm, and the gap between the dispensing tube portion 21 and the liquid guiding portion 25 may be 0.5 mm or more, but is not limited to this, and the surface What is necessary is just the gap dimension which has the effect | action pulled by tension | tensile_strength, and the width | variety of the liquid guidance | induction part 25. FIG.

  As shown in FIGS. 2 and 3, the opening 23 formed by detaching the opening forming wall portion 18 is formed with a long hole-shaped portion 23a that is long in the front-rear direction in plan view. The liquid guiding part 25 is provided in a direction along the direction in which the hole-shaped part 23a is formed long (position on the longitudinal extension line of the long-hole shaped part 23a).

  Further, in this embodiment, as shown in FIGS. 1 and 4, the gap 26 between the dispensing cylinder part 21 and the liquid guiding part 25 is viewed from the direction along the circumferential direction of the dispensing cylinder part 21. The shape becomes narrower as it approaches the connecting portion 27 (that is, as viewed from the side) (that is, it has a substantially V-shape that becomes narrower downward).

  Furthermore, as shown to Fig.5 (a), the cross-sectional shape of the connection part 27 of the extraction cylinder part 21 and the liquid guidance | induction part 25 is seen from the direction orthogonal to the circumferential direction of the extraction cylinder part 21 ( In this embodiment, it is formed so as to extend horizontally from the front to the rear (in the direction viewed from the position of the line AA in FIG. 4 and viewed from the left side to the right side of the paper) (ie, viewed from the front). Has been. However, the present invention is not limited to this, and more preferably, as shown in FIGS. 5B and 5C, the shape may be inclined so that both sides are downward. In addition, in the cap 10 shown in FIG. 5 (b), the case where both sides are inclined so as to be downward is shown, and in the cap 10 shown in FIG. 5 (b), both sides are below. The case where it inclines linearly is shown.

  According to the above configuration, since the liquid guiding portion 25 is provided in a state where the gap 26 is opened with respect to the dispensing cylinder portion 21, the bottle 1 is returned to the standing posture where pouring is finished from the tilting posture where the liquid is poured. In this case, even when the liquid at the end of pouring is about to drip, it is pulled temporarily by the surface tension due to the gap 26 between the liquid guiding portion 25 and the dispensing cylinder portion 21, and the liquid is well drained. It becomes a state. In addition, since the liquid guiding portion 25 is provided in a part in the circumferential direction with a gap 26 formed on the inner side with respect to the dispensing cylinder portion 21, when the bottle 1 is returned to the standing posture. After the liquid held in the gap 26 between the liquid guiding part 25 and the dispensing cylinder part 21 flows down to the connecting part 27 side, the both sides of the connecting part 27 along the inner wall surface of the dispensing cylinder part 21. It flows down into the bottle 1.

  Thereby, when returning the bottle 1 to a standing posture, etc., it can suppress to the minimum that a liquid drips from the cap main body 11, or a liquid drips and adheres to the outer peripheral surface of the cap main body 11. Therefore, the liquid does not flow down while adhering along the outer peripheral surface of the cap body 11 or the outside of the bottle 1 or adheres to the finger or the like, which is hygienic and improves convenience.

  Moreover, according to the said structure, since the liquid guidance | induction part 25 is provided only in a part of the circumferential direction with respect to the extraction | pouring cylinder part 21, the user of the bottle 1 equipped with this cap 10 is liquid guidance. The part 25 can be easily visually recognized. Therefore, when the bottle 1 is tilted, the user is prompted to tilt (tilt) the bottle 1 in a suitable cap 10 orientation with the portion where the liquid guiding portion 25 is formed on the lower side. Show the direction of power). Thereby, it can be made into the state which is hard to produce dripping further (namely, state with a good liquid drainage).

  Moreover, according to the said structure, the long hole shape part 23a is formed as the opening part 23 which pours the liquid to the cap main body 11, and a liquid guide part is formed in the direction along the direction in which this long hole shape part 23a is formed long. 25 is provided. Thereby, when starting to pour the liquid, the liquid flowing out from the long hole-shaped portion 23a is likely to flow out along the liquid guiding portion 25, and is difficult to scatter around. Further, when the bottle 1 is erected after pouring of the liquid, the liquid held in the gap 26 between the liquid guiding portion 25 and the dispensing cylinder portion 21 flows from the inside of the dispensing cylinder portion 21 into the opening 23. It can be pulled back very well into the bottle 1 through the elongated hole portion 23a.

  Moreover, according to the said structure, as shown to FIG. 1, FIG. 4, the clearance gap 26 between the extraction cylinder part 21 and the liquid guidance | induction part 25 is seen from the direction in alignment with the circumferential direction of the extraction cylinder part 21. Since it has a shape that narrows as it approaches the connection portion 27 (that is, a shape that narrows toward the bottom) (ie, when viewed from the side), the liquid that has accumulated in the gap when the liquid has been poured is removed by the surface tension. It becomes easy to be drawn in to 27 side, and it becomes difficult to produce liquid dripping. However, if the gap 26 between the dispensing cylinder part 21 and the liquid guiding part 25 is excessively widened, the surface tension does not act, so the gap 26 between the dispensing cylinder part 21 at the upper end of the liquid guiding part 25. It is desirable to keep the value below a certain dimension.

  In the above embodiment, when the gap 26 between the dispensing cylinder portion 21 and the liquid guide portion 25 has a shape that narrows toward the connection portion 27 side when viewed from the side (that is, a shape that narrows toward the bottom). However, the present invention is not limited to this, and as shown in FIG. 6, the gap 26 between the dispensing cylinder portion 21 and the liquid guide portion 25 is set to have substantially the same vertical dimension (however, surface tension can act). May be formed with a wide width. According to this configuration, the volume of the gap 26 can be increased as compared with the case where the gap 26 has a shape that becomes narrower toward the connecting portion 27 side. As a result, even when the liquid at the end of pouring is about to drip, There is an advantage that a large amount of liquid can be stored.

  Further, as shown in FIG. 5B and FIG. 5C, the connection part 27 between the dispensing cylinder part 21 and the liquid guiding part 25 is viewed from a direction orthogonal to the circumferential direction of the dispensing cylinder part 21. When formed in a cross-sectional shape that is inclined so that both sides are downward (that is, when viewed from the front), the liquid accumulated in the gap between the dispensing cylinder portion 21 and the liquid guiding portion 25 is poured out. It is possible to satisfactorily flow down along the vicinity of the surface inclined downward of the connecting portion 27 on the inner wall surface of the cylindrical portion 21, and the reliability is improved. In the example shown in FIG. 5B and FIG. 5C, the case where the connecting portion 27 is formed in a cross-sectional shape that is inclined so that both sides are downward when viewed from the front is described. However, the present invention is not limited to this, and the whole connecting portion 27 may be formed to be inclined to one side.

  In the above embodiment, the case where the tip of the liquid guiding portion 25 is formed to protrude upward to substantially the same height as the tip edge of the dispensing tube portion 21 is described, but the present invention is not limited to this. 7 to 10, the liquid guide portion 25 may be formed so that the tip thereof protrudes upward (or obliquely upward) from the tip edge of the dispensing tube portion 21 (second). Embodiment). This embodiment is also common in that the liquid guide portion 25 is provided in a state where a gap 26 is provided on the inner side (radially inner side) than the dispensing tube portion 21.

  Moreover, in the said 1st Embodiment, although the case where the liquid guidance | induction part 25 branched from the center part of the height direction of the extraction cylinder part 21 was shown, it is not restricted to this, You may comprise so that the liquid guidance | induction part 25 may branch from the location near the upper part of a height direction. According to this configuration, in addition to obtaining the same operational effects as the cap 10 of the first embodiment, when the open / close door 13 of the cap 10 is closed, the seal wall 22 and the extraction cylinder of the open / close door 13 are provided. There is an advantage that the area in close contact with the portion 21 can be increased and the sealing performance in the state where the open / close door 13 is closed can be improved.

  In the first and second embodiments, the case has been described in which the liquid guiding portion 25 is provided in a state where a gap 26 is opened on the inner side (radially inner side) than the dispensing tube portion 21. However, instead of this, as shown in FIG. 11 to FIG. 16, a part of the dispensing cylinder portion 21 in the circumferential direction is cut out, and the gap 26 is held in the gap 26 with the gap 26 between the cutout portions. A liquid guiding part 25 capable of pulling back the liquid that has been drawn back to the inside of the dispensing cylinder part 21 may be provided (third embodiment).

  As shown in FIGS. 11 to 16, a part of the cap main body 11 with respect to the circumferential direction of the extraction tube portion 21 (specifically, a portion of the extraction tube portion 21 opposite to the hinge portion 12 of the cap 10). A portion closer to the top is cut out, and the liquid guiding portion 25 is integrally formed with the gaps 26 on both sides in the circumferential direction between the cutout portions. In addition, the liquid guidance | induction part 25 is provided in the direction along the direction where the long hole shape part 23a of the opening part 23 is formed long similarly to the said embodiment.

  In addition, the liquid guiding part 25 is connected to the dispensing cylinder part 21 by the connecting part 27 on the lower side, and is formed so as to extend elongated from the connecting part 27 to the dispensing cylinder part 21 upward or obliquely upward. Further, as shown in FIG. 14A and the like, the gap 26 between the dispensing cylinder part 21 and the liquid guiding part 25 is viewed from a direction orthogonal to the circumferential direction of the dispensing cylinder part 21 (that is, viewed from the front). And are formed with substantially the same width in the vertical direction. Moreover, the connection part 27 is formed in the cross-sectional shape which inclines so that the inner diameter side may become a lower side seeing from the direction along the circumferential direction of the extraction | pouring cylinder part 21. FIG.

  Moreover, in the cap 10 shown in FIGS. 11-14, the front end side of the liquid guidance | induction part 25 is made into the shape extended diagonally upward toward the outer side (diameter direction outer side) rather than the pouring cylinder part 21, and the liquid guidance | induction part 25 of FIG. The front end is formed so as to protrude from the front end edge of the dispensing cylinder part 21. The width of the liquid guiding part 25 is, for example, 1 to 2 mm, the gap between the pouring cylinder part 21 and the liquid guiding part 25 is 0.3 mm to 0.5 mm, and the tip part of the liquid guiding part 25 is the pouring cylinder. The dimension protruding from the tip edge of the portion 21 may be 3 to 4 mm, but is not limited to this, and may be a gap size to be pulled in by surface tension or the width of the liquid guiding portion 25.

  According to this configuration, since the liquid guiding portion 25 is provided in a state where a gap 26 is formed with respect to the dispensing cylinder portion 21, the bottle 1 is returned to the standing posture where pouring is finished from the tilting posture where the liquid is poured. In this case, even when the liquid after pouring is about to spill, it is pulled and held by the surface tension due to the gap 26 between the liquid guiding portion 25 and the dispensing cylinder portion 21. Thereby, when returning the bottle 1 to a standing posture, etc., it can suppress to the minimum that a liquid drips from the cap main body 11, or a liquid drips and adheres to the outer peripheral surface of the cap main body 11.

  Further, the liquid guiding portion 25 is provided only in a part in the circumferential direction with a gap 26 formed on the inner side with respect to the dispensing tube portion 21, and the connecting portion 27 is provided in the dispensing tube portion 21. When the bottle 1 is returned to the standing posture, the liquid guiding portion 25 and the dispensing cylinder are formed because the inner diameter side is inclined so that the inner diameter side is downward as viewed from the direction along the circumferential direction. After the liquid held in the gap 26 between the portion 21 flows down to the connecting portion 27 side, it flows into the bottle 1 along the inner wall surface of the dispensing cylinder portion 21 from both sides of the connecting portion 27.

  Thereby, liquid does not flow down while adhering along the outer peripheral surface of the cap body 11 or the outside of the bottle 1 or adheres to a finger or the like, which is hygienic and improves convenience.

  Moreover, since the liquid guide part 25 is provided only in a part in the circumferential direction with respect to the dispensing cylinder part 21 even with the above-described configuration, the user of the bottle 1 wearing the cap 10 can use the liquid guide part. 25 can be easily visually recognized. Therefore, when the bottle 1 is tilted, the user is prompted to tilt (tilt) the bottle 1 in a suitable cap 10 orientation with the portion where the liquid guiding portion 25 is formed on the lower side. Show the direction of power). As a result, it is possible to make it more difficult for dripping to occur (i.e., good drainage).

  Also, with the above configuration, the elongated hole-shaped portion 23a is formed as the opening 23 for pouring the liquid into the cap body 11, and the liquid guiding portion 25 extends in the direction along which the elongated hole-shaped portion 23a is formed long. When the liquid is started to be poured, the liquid flowing out from the long hole-shaped portion 23a is likely to come out along the liquid guiding portion 25 and is not easily scattered around. Further, when the bottle 1 is erected after pouring of the liquid, the liquid held in the gap 26 between the liquid guiding portion 25 and the dispensing cylinder portion 21 flows from the inside of the dispensing cylinder portion 21 into the opening 23. It can be pulled back very well into the bottle 1 through the elongated hole portion 23a.

  In addition, in the cap 10 shown in FIGS. 11-14, the case where the front end side of the liquid guidance | induction part 25 is made into the shape extended diagonally upward toward the outer side (diameter direction outer side) rather than the extraction cylinder part 21 is shown. However, the present invention is not limited to this, and as shown in FIGS. 15A and 15B, the leading end side of the liquid guiding portion 25 is formed in the same direction (the same radial direction) as the dispensing cylinder portion 21. The tip of the liquid guide portion 25 may be formed so as to protrude from the tip edge of the dispensing tube portion 21.

  Further, as shown in FIGS. 16A and 16B, the leading end side of the liquid guiding portion 25 may be formed in a shape extending upward toward the inner side (radially inner side) than the dispensing cylinder portion 21. . In this case, a gap 26 between the dispensing cylinder part 21 and the liquid guiding part 25 is formed in the circumferential direction and the radial direction of the dispensing cylinder part 21, and more liquid is temporarily stored in the gap 26. Can be accumulated. In this case, since the gap 26 between the liquid guiding portion 25 and the dispensing cylinder portion 21 is formed closer to the inside in the radial direction, the liquid accumulated in the gap 26 is applied to the inner wall surface of the dispensing cylinder portion 21. There is also an advantage that it easily flows down into the bottle 1 along. Therefore, in the case of this configuration, a configuration in which the inner diameter side of the connection portion 27 is not inclined so as to be downward may be employed.

  16 (a) and 16 (b), the cap 10 shown in FIG. 16 (b) is partially cut away in the circumferential direction of the dispensing tube portion 21, and the liquid guide portion 25 is provided with a gap 26 between the cutout portions. The liquid guiding portion 25 is provided in a state where a gap 26 is opened also on the inner side of the dispensing cylinder portion 21, and the cap 10 is formed by, for example, the following manufacturing method.

  That is, the cap 10 has a relatively complicated shape, and if the mold (for example, the upper mold) for manufacturing the cap body 11 is one, the manufactured cap 10 and the mold are separated. I can't. Therefore, the mold (for example, the upper mold) is often divided into a plurality of divided molds 31 and 32 by the diameter method of the cap body 11 (between the radially central portion side and the radially outer side) (see FIG. 17 (a) and (b)). Then, as shown in FIGS. 16A and 16B, a part of the dispensing cylinder portion 21 in the circumferential direction is notched, and the liquid guide portion 25 is provided with a gap 26 between the notched portions. Even when the cap 10 is manufactured, as shown in FIGS. 17A and 17B, the divided molds 31 and 32 divided in the radial direction as described above are used. Here, in the cavity (resin injection space) 35 in which a product is formed by the mold including the split molds 31 and 32, the dispensing cylinder part 21 in the cavity 35 is formed as the split molds 31 and 32. The part and the part which forms the liquid guidance | induction part 25 are formed in the position (same circumferential direction) of the same diameter. However, when separating the split molds 31 and 32, first, the split mold 31 on the inner peripheral side with respect to the portion corresponding to the dispensing cylinder portion 21 is separated in a direction relatively away from the cavity space. Next, the split mold 32 on the outer peripheral side with respect to the portion corresponding to the dispensing cylinder portion 21 is separated in a direction relatively away from the cavity space. In this series of split mold releasing steps, when the inner peripheral split mold 32 is detached, the liquid guiding portion 25 is in a freely deformable state on the inner diameter side. As shown in FIG. 17 (c), the leading end side of the liquid guiding portion 25 is formed (formed) into a shape extending upward toward the inner side (radially inner side) than the dispensing tube portion 21. By using this manufacturing method, the cap 10 having a shape in which the tip side of the liquid guiding portion 25 extends upward toward the inner side (radially inner side) than the dispensing tube portion 21 can be manufactured relatively easily and efficiently. Can do.

  In addition, in the cap 10 shown in FIGS. 11-16, the clearance gap 26 between the extraction cylinder part 21 and the liquid guidance | induction part 25 is the circumferential direction of the said extraction cylinder part, as shown to Fig.4 (a). When viewed from a direction orthogonal to the direction (ie, when viewed from the front), the case where they are formed with substantially the same width in the vertical direction is described. In this case, the width is set to a dimension close to the maximum width on which surface tension can act. As a result, the volume of the gap 26 can be increased, and as a result, there is an advantage that a relatively large amount of liquid can be stored even when the liquid after pouring is about to spill.

  However, the present invention is not limited to this, and as shown in FIG. 18, the gap 26 between the dispensing cylinder part 21 and the liquid guiding part 25 is viewed from a direction orthogonal to the circumferential direction of the dispensing cylinder part 21 (that is, It is good also as a shape which becomes narrow, so that the lower connection part 27 is approached. In this case, when the liquid is completely poured, the liquid accumulated in the gap 26 is likely to be drawn to the connection portion 27 side due to the surface tension, and the liquid dripping is less likely to occur. However, if the gap 26 between the dispensing cylinder part 21 and the liquid guiding part 25 is excessively widened, the surface tension does not act, so the gap 26 between the dispensing cylinder part 21 at the upper end of the liquid guiding part 25. It is desirable to keep the value below a certain dimension.

  Further, in the above-described embodiment, the case where the shape of the liquid guiding portion 25 is a substantially rectangular shape (elongated rectangular shape) when viewed from the front (as viewed from the direction orthogonal to the circumferential direction) has been described. Instead, it may be formed so that the tip side gradually becomes narrower (in a trapezoidal or triangular shape).

  Moreover, although the case of the cap 10 in which the opening / closing lid 13 is attached to the cap main body 11 via the hinge portion 12 has been described, the present invention is not limited to this, and the opening / closing lid can also be attached to the cap main body. Of course, it is applicable.

1 bottle (container)
2 Portion 10 Cap 11 Cap Body 12 Hinge Part 13 Opening / Closing Lid 21 Outlet Tube Part 23 Opening Part 23a Long Hole Shaped Part 25 Liquid Inducing Part 26 Gap 27 Connection Part 31, 32 Split Mold 35 Cavity

Claims (13)

A cap body attached to the mouth of a container in which liquid is stored;
The cap body has a dispensing cylinder part and a liquid guiding part for guiding the liquid flowing along the inner wall surface of the dispensing cylinder part,
The liquid guiding part is provided in a part of the circumferential direction with respect to the dispensing cylinder part in a state where a gap is provided with respect to the dispensing cylinder part, and the container is returned from the tilted position to the standing position. In this case, the cap is configured such that the liquid held in the gap between the liquid guiding portion and the dispensing tube portion can be pulled back from the inside of the dispensing tube portion to the container side.   The liquid guide part is connected to the dispensing cylinder part on the lower side, and the liquid guiding part is formed so as to extend elongated upward or obliquely upward from the connection part with the dispensing cylinder part. Item 2. The cap according to Item 1.   The cap according to claim 2, wherein a tip of the liquid guide portion is formed so as to protrude from a tip edge of the extraction tube portion.   An opening for pouring liquid into the cap body is formed, and a long hole shape portion that is long in a predetermined direction when viewed in plan is formed as the opening, and the direction along the direction in which this long hole shape portion is formed long The cap according to any one of claims 1 to 3, wherein a liquid guiding part is provided.   The cap according to any one of claims 1 to 4, wherein the liquid guide part is provided in a state where a gap is formed inside the extraction cylinder part.   The liquid guide portion is connected to the extraction tube portion at a connection portion, and a gap between the extraction tube portion and the liquid guide portion is connected when viewed from a direction along the circumferential direction of the extraction tube portion. The cap according to claim 5, wherein the cap is formed so as to become narrower as it approaches the portion.   The liquid guide portion is connected to the extraction tube portion at a connection portion, and the connection portion is inclined so that one side or both sides are downward when viewed from a direction orthogonal to the circumferential direction of the extraction tube portion. The cap according to claim 5 or 6, wherein the cap is formed in a cross-sectional shape.   5. The liquid guide part is provided in a state where a part of the extraction cylinder part in the circumferential direction is notched and a gap is provided between the notch parts. Cap as described in.   The liquid guide part is connected to the dispensing cylinder part on the lower side, and the gap between the dispensing cylinder part and the liquid guiding part is viewed from a direction orthogonal to the circumferential direction of the dispensing cylinder part, 9. The cap according to claim 8, wherein the cap is formed to have substantially the same width in the vertical direction.   The liquid guiding part is connected to the dispensing cylinder part at a connection part, and a gap between the dispensing cylinder part and the liquid guiding part is viewed from a direction orthogonal to the circumferential direction of the dispensing cylinder part, The cap according to claim 8, wherein the cap becomes narrower as it approaches a lower connecting portion.   The liquid guide portion is connected to the extraction tube portion at a connection portion, and a cross-sectional shape of the connection portion between the extraction tube portion and the liquid guide portion is viewed from a direction along the circumferential direction of the extraction tube portion. The cap according to any one of claims 8 to 10, wherein the cap is inclined so that the inner diameter side is downward.   The cap according to any one of claims 8 to 11, wherein the liquid guide part is provided in a state where a gap is also provided on the inner side of the extraction cylinder part. A method for producing the cap according to claim 12 using a plurality of split molds,
As a mold for forming the dispensing cylinder part and the liquid guiding part in the cavity into which the resin is injected, the divided mold is divided with respect to the radial direction of the cap body and forms the inner diameter side from the dispensing cylinder part, A mold with a split mold that forms the outer diameter side from the dispensing cylinder is used,
The location where the dispensing cylinder portion and the location where the liquid guide portion are formed in the cavity formed by these split molds are formed at the same diameter position,
After injecting the resin into the cavity, the split mold that forms the inner diameter side of the extraction cylinder part is separated from the split mold that forms the outer diameter side of the extraction cylinder part,
A method for manufacturing a cap, wherein the liquid guide part is formed into a shape extending radially inward from the dispensing cylinder part.

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