JP7203549B2 - discharge cap - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge cap which is attached to the mouth of a container containing a content liquid, and which can discharge the content liquid as it is or in the form of foam.

2. Description of the Related Art Conventionally, there is known a dispenser that is attached to a container containing, for example, detergents, medicines, food seasonings, beverages, etc., and is capable of foaming and discharging the content liquid. As such a dispenser, in Patent Document 1, a piston is fixed and held at the mouth of a container by a base cap, and a piston for the content liquid is inserted into the cylinder by pushing down a pressing head that is biased upward and returning the pressing head. and move the piston for air, sucking the content liquid and air into the cylinder along with it, pumping them in a mixed state, further passing through a mesh to foam them, and foaming from the discharge port of the pressing head , which ejects the liquid content of the

JP 2007-050323 A

By the way, depending on the conditions of use, there are times when it is desired to pour out the content liquid as it is, without being limited to foaming and discharging. For example, in the case of removing dirt from clothes, it is sometimes desired to dispense the detergent in foam form so that the detergent stays on the surface of the clothes for a long time. Sometimes I want to In the case of food seasonings (such as soy sauce), in order to reduce the amount used, it may be foamed and discharged so as to be placed on the food, or it may be used as it is in the liquid state. Furthermore, in the case of beverages such as beer and coffee, foam may be discharged onto the surface of the liquid after being poured into a glass or the like in a liquid state. However, conventional dispensers cannot dispense the content liquid as it is, so in such a case, the dispenser must be removed from the container before use, or a container with a cap that allows the liquid to be poured out must be used. I had to prepare it separately.

SUMMARY OF THE INVENTION The present invention has been made in view of these points, and provides a discharge cap capable of foaming a content liquid contained in a container and discharging it in the form of foam, or allowing the liquid to be poured out as it is. intended to provide

The present invention relates to a joint having an upper opening, a side pouring port that is attached to the mouth of a container that contains a content liquid and is in constant communication with the mouth, and a pouring tube that surrounds the side pouring port. ,
a pump that is inserted through the upper opening and is attached to the joint, and is driven by pushing down a pressing head to foam and discharge the content liquid contained in the container from a discharge port provided in the pressing head. ,
The container detachably has a first engaging portion provided at the mouth portion and a lid attached to the first engaging portion to close the mouth portion,
The joint includes a lower engaging portion that can be engaged with the first engaging portion, and a lower engaging portion that is provided on the pouring tube and has the same shape as the first engaging portion, and the joint is attached to the mouth portion of the container. The discharge cap has a second engaging portion to which the lid body that is removed at the time of attachment can be attached .
Further, the present invention comprises a cylindrical joint body attached to the mouth of a container containing a content liquid, an upper opening passing through the upper part of the joint body, and a side part of the joint body. A side pouring port constantly communicating with the mouth, a pouring tube surrounding the side pouring port and inclined upward as it moves away from the side pouring port, and integrated with the pouring tube via a hinge. A lid wall that is connected and can close the tip opening of the pouring tube, and a portion of the joint body that is connected to the pouring tube projects radially outward and engages with the opened lid wall. a joint having a lid wall engaging portion that holds the lid wall;
a pump that is inserted through the upper opening and mounted on the joint, and is driven by pushing down a pressing head to foam and discharge the content liquid contained in the container from a discharge port provided in the pressing head. A discharge cap.

The joint has a partition wall that divides the side pouring port into a lower opening portion through which the liquid contained in the container can be poured out to the outside and an upper opening portion through which air from the outside world can be taken into the container. It is preferable to have

According to the discharge cap according to the present invention, the joint attached to the mouth of the container is provided with the side pouring port communicating with the mouth. can be poured. Also, the discharge cap has a pump attached to the upper opening of the joint, and the pump is driven by pushing down the pressing head, whereby the foamy content can be discharged from the discharge port of the pressing head. can. That is, with the discharge cap attached to the mouth of the container, the content liquid can be discharged in a liquid state or foamed and discharged, which is excellent in usability.

In addition, if the joint is provided with a pouring cylinder that surrounds the side pouring port, the liquid can be poured out toward the pouring destination. The problem of overflowing is less likely to occur.

When the container has a lid attached to the first engagement portion of the mouth, a second lid having the same shape as the first engagement portion and to which the lid can be attached is attached to the pouring tube of the joint. By providing the two engaging portions, the lid that has closed the opening of the container can be reused to close the pouring cylinder.

Also, instead of such a lid body, if a lid wall that is integrally connected to the pouring tube via a hinge and is capable of closing the tip opening of the pouring tube is provided, the number of parts for the discharge cap is increased. It is possible to have a function of closing the pouring tube without removing the tip. When a lid wall is provided, by providing a lid wall engaging portion that holds the lid wall in a state where the tip opening of the pouring tube is open, the lid wall is closed when the contents are being poured out in a liquid state. It can be used more conveniently because it will not be lost.

A partition wall provided in the joint divides the side pouring port into a lower opening through which the liquid contained in the container can be poured out to the outside and an upper opening through which air from the outside can be drawn into the container. In this case, it is possible to suppress pulsation during pouring out the content liquid from the side pouring port.

1 is a side half-sectional view of a first embodiment of a discharge cap according to the present invention, shown attached to a container; FIG. FIG. 2 is a half-sectional view showing the discharge cap of FIG. 1 from the front; 2 is an enlarged view showing the internal structure of a pressing head in the ejection cap of FIG. 1; FIG. (a) is a diagram showing a state in which the content liquid is discharged from the discharge cap shown in FIG. 1 in a liquid state, and (b) is a diagram showing a state in which the liquid is discharged from the discharge port of the pressing head in the form of bubbles. is. FIG. 10 is a half-sectional side view of a second embodiment of a discharge cap according to the present invention, shown attached to a container; FIG. 6 is a half-sectional view showing the discharge cap of FIG. 5 from the front; (a) is a diagram showing a state in which the liquid content is discharged from the discharge cap shown in FIG. 5, and (b) is a diagram showing a state in which the liquid is discharged from the discharge port of the pressing head in the form of bubbles. is.

First, a first embodiment of a discharge cap according to the present invention will be described with reference to FIGS. 1 to 4. FIG. In this specification and the like, the "upper" side and the "lower" side refer to the directions in which the discharge cap (reference numeral 1) is attached to the upright container (reference numeral 20), as shown in FIG. Say.

As shown in FIG. 1, the discharge cap 1 of this embodiment is configured to be attached to a bottle-shaped container 20 . The container 20 in this embodiment is made of a synthetic resin (a material whose main material is polyethylene terephthalate (PET)). The material of the container 20 is not limited to synthetic resin, and other materials such as metal and glass may be used. As illustrated, the container 20 includes a disk-shaped bottom portion 20a, a cylindrical body portion 20b standing up from the outer edge of the bottom portion 20a, and a conical body portion 20b connected to the upper end of the body portion 20b and tapered upward. a shoulder portion 20c, a cylindrical mouth portion 20d extending upward from the upper end of the shoulder portion 20c, and a first engaging portion 20e provided in the shape of a male screw on the outer peripheral surface of the mouth portion 20d. A storage space S is formed inside to store the content liquid.

It should be noted that the container 20 described above can be fitted with the lid 21 shown in FIG. 1 with the discharge cap 1 removed. Here, the lid body 21 includes a disk-shaped lid body body portion 21a, a female screw-shaped lid body engaging portion 21b configured to engage with the first engaging portion 20e, and a first engaging portion. A lid body sealing portion 21c is liquid-tightly brought into contact with the inner peripheral surface of the mouth portion 20d when the lid body engaging portion 21b is engaged with the joint portion 20e.

The discharge cap 1 of this embodiment attached to such a container 20 includes the joint 2 and the pump 3, and also includes an overcap 13 that covers a pressing head, which will be described later.

The joint 2 has a cylindrical joint body 2a. An inward flange 2b extending radially inward from the inner peripheral surface of the joint body 2a is provided at the inner lower portion of the joint body 2a, and the inward flange 2b is engaged with a first engaging portion 20e. A female threaded lower engaging portion 2c is provided. Further, the inward flange 2b is provided with a joint seal portion 2d that liquid-tightly contacts the inner peripheral surface of the mouth portion 20d when the lower engaging portion 2c is engaged with the first engaging portion 20e.

The joint 2 also has a circular side spout 2e penetrating the joint body 2a as shown in FIG. A partition wall 2h is provided inside the side outlet 2e to partition the side outlet 2e into a lower opening portion 2f and an upper opening portion 2g. Further, on the outer peripheral surface of the joint main body 2a, there is provided a cylindrical pouring tube 2j that surrounds the side pouring port 2e and extends substantially horizontally toward the outside in the radial direction. is provided with a male-threaded second engaging portion 2k having the same shape as the first engaging portion 20e, to which the lid 21 can be attached.

Further, the joint 2 is provided with an upper opening 2m passing through the upper part of the joint body 2a (see the enlarged view of FIG. 1). A male threaded upper engaging portion 2n is provided on the outer peripheral surface of the upper portion of the joint main body 2a.

The pump 3 is, as shown in the figure, connected to the pipe 4, the lower part of which is bent with respect to the upper part, and the pipe 4. The lower part of the small diameter and the upper part of the large diameter are connected in series. , a cylinder 5 inserted through the joint 2, a sealing member 6 having an annular plate shape as shown in the enlarged view of FIG. and a base cap 7 mounted on the joint 2 by engaging with the upper engaging portion 2n, and a pressing head 8 protruding upward from the base cap 7. As shown in FIG. The pump 3 of this embodiment has substantially the same internal structure as that of the pump disclosed in the above-mentioned Patent Document 1. 3 moves the piston for the content liquid and the piston for air (both not shown) provided inside the cylinder 5 via the stem 9 shown in FIG. Liquid and air are sucked into the cylinder 5. Here, as shown in FIG. 3, inside the pressing head 8 are a jet ring 10 having a larger diameter at the top than at the bottom, and a mesh ring 11 which is held at the top of the jet ring 10 and has a mesh on the end surface. is provided, and below the jet ring 10, a confluence space G is formed in which the content liquid sucked into the cylinder 5 and air are mixed. The content liquid and air sucked into the cylinder 5 are mixed in the confluence space G and pressure-fed, pass through the mesh ring 11 held by the jet ring 10 to foam, and foam from the discharge port 8a of the pressing head 8. It is discharged in the shape of A mesh ring 12 formed so as to be held by the pressing head 8 is attached to the ejection port 8a of the present embodiment.

As shown in FIG. 1, the overcap 13 has a lidded tubular shape and is configured to cover the pressing head 8 and be detachably held by the basecap 7 .

In the discharge cap 1 having such a configuration, the side spout 2e communicates with the mouth 20d. Therefore, when the container 20 is tilted as shown in FIG. 4A with the cover 21 removed from the pouring tube 2j, the liquid contained in the housing space S flows through the mouth 20d and the side pouring port 2e. It passes through and is poured out from the tip opening of the pouring tube 2j. Therefore, by the method shown in FIG. 4(a), the content liquid can be poured out in a liquid state. In this embodiment, a partition wall 2h is provided inside the side pouring port 2e to divide the side pouring port 2e into a lower opening portion 2f and an upper opening portion 2g. Air can be introduced into the housing space S through the upper opening portion 2g. As a result, pulsation during pouring of the content liquid is suppressed, and replacement of the content liquid and air in the accommodation space S is performed smoothly.

On the other hand, when the content liquid is foamed and discharged, the pressure head 8 is pushed down with the overcap 13 removed. Since the pump 3 can be driven by this, as shown in FIG.4(b), a foamy content liquid can be discharged from the discharge port 8a. If the foam-like content liquid remains inside the ejection port 8a, the bubbles may disappear over time and the content liquid may drip from the ejection port 8a. Since the mesh ring 12 is attached to the discharge port 8a as described above, such dripping can be effectively prevented. By the way, when the content liquid is foamed and discharged, it is not necessary to tilt the container 20 so much as shown in FIG. Therefore, even if the lid 21 is removed from the pouring cylinder 2j, the liquid content will not be poured out from the pouring cylinder 2j when foaming the contents and discharging it.

Next, a second embodiment of a discharge cap according to the invention will be described with reference to FIGS. 5 to 7. FIG. Parts having substantially the same functions and forms as those of the above-described embodiment are denoted by the same reference numerals in the drawings, and descriptions thereof are omitted.

In the discharge cap 1' of this embodiment, the partition wall 2h provided inside the side outlet 2e is abolished, and instead of the outlet cylinder 2j extending substantially horizontally toward the radially outer side, , and a pouring tube 2p that is inclined upward as it moves away from the side pouring port 2e. As shown in FIGS. 5 and 6, at the tip of the pouring tube 2p is a lid wall 2r which is integrally connected to the pouring tube 2p via a hinge 2q and which can close the tip opening of the pouring tube 2p. is provided. Here, as shown in FIG. 5, the lid wall 2r has a finger hook portion 2s extending from the lid wall 2r. A lid wall seal portion 2t is provided for liquid-tight contact. Above the portion where the pouring cylinder 2p is connected to the joint main body 2a, a lid wall 2r that protrudes radially outward from the outer peripheral surface of the joint main body 2a and engages with the finger hook portion 2s to hold the open lid wall 2r. (Refer to FIG. 7(a)) A plate-shaped cover wall engaging portion 2u is provided.

In the discharge cap 1′ configured as described above, when the liquid content is to be poured out in a liquid state, the lid wall 2r is opened as shown in FIG. 2u. As a result, the tip opening of the pouring tube 2p remains open. By tilting the container 20, the liquid in the storage space S can be passed through the mouth portion 20d and the side pouring port 2e to be poured out from the tip opening of the pouring cylinder 2p.

When the content liquid is to be discharged in the form of foam, the pressing head 8 can be pushed down in the state shown in FIG. 7(b). Content liquid can be discharged.

Although the present invention has been described with reference to specific embodiments, the discharge cap according to the present invention is not limited to the above-described embodiments, and includes various modifications within the scope of the claims. be For example, the pump is not limited to having the structure described above, and may employ other structures. Further, as shown in FIG. 1, the first engaging portion 20e and the second engaging portion 2k to which the lid 21 is attached are both externally threaded. 21 may be held. Further, the partition wall 2h of the discharge cap 1 of the first embodiment may be applied to the discharge cap 1' of the second embodiment, or the cover wall connected to the pouring cylinder 2p by the hinge 2q of the discharge cap 1' 2r may be provided on the spout tube 2j of the spout cap 1. FIG.

1, 1': discharge cap 2: joint 2a: joint main body 2b: inward flange 2c: lower engagement portion 2d: joint seal portion 2e: side outlet 2f: lower opening portion 2g: upper opening portion 2h: partition wall 2j: pouring pipe 2k: second engaging portion 2m: upper opening 2n: upper engaging portion 2p: pouring pipe 2q: hinge 2r: lid wall 2s: finger hook portion 2t: lid wall seal portion 2u: lid wall engagement Joint 3: Pump 4: Pipe 5: Cylinder 6: Seal member 7: Base cap 8: Pressing head 8a: Discharge port 9: Stem 10: Jet ring 11: Mesh ring 12: Mesh ring 13: Overcap 20: Container 20a : Bottom 20b: Body 20c: Shoulder 20d: Mouth 20e: First engaging part 21: Lid 21a: Lid main body 21b: Lid engaging part 21c: Lid sealing part G: Merging space S: accommodation space

Claims (3)

a joint having an upper opening and having a side pouring port that is attached to the mouth of a container containing a content liquid and always communicates with the mouth, and a pouring tube that surrounds the side pouring port;
a pump that is inserted through the upper opening and is attached to the joint, and is driven by pushing down a pressing head to foam and discharge the content liquid contained in the container from a discharge port provided in the pressing head. ,
The container detachably has a first engaging portion provided at the mouth portion and a lid attached to the first engaging portion to close the mouth portion,
The joint includes a lower engaging portion that can be engaged with the first engaging portion, and a lower engaging portion that is provided on the pouring tube and has the same shape as the first engaging portion, and the joint is attached to the mouth portion of the container. A discharge cap having a second engaging portion to which the lid body that is removed when attached can be attached . A joint body having a cylindrical shape and attached to the mouth of a container containing a content liquid, an upper opening penetrating the upper part of the joint body, and penetrating the side of the joint body and constantly communicating with the mouth. a side pouring port, a pouring tube surrounding the side pouring port and inclined upward as it moves away from the side pouring port, and integrally connected to the pouring tube via a hinge and the pouring A lid wall capable of closing the tip opening of the cylinder and a portion of the joint body where the pouring cylinder is connected project radially outward above the joint body and engage with the opened lid wall to hold the lid wall. a joint having a lid wall engaging portion that
a pump that is inserted through the upper opening and mounted on the joint, and is driven by pushing down a pressing head to foam and discharge the content liquid contained in the container from a discharge port provided in the pressing head. discharge cap. The joint has a partition wall that divides the side pouring port into a lower opening portion through which the liquid contained in the container can be poured out to the outside and an upper opening portion through which air from the outside world can be taken into the container. 3. A discharge cap according to claim 1 or 2 .

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