JP7366505B2 - Discharge container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a dispensing container.

BACKGROUND ART Dispensing containers capable of discharging liquid contents such as food seasonings such as soy sauce, beverages, shampoos, conditioners, body soaps, cosmetics, or medicines are known. As described in Patent Document 1, for example, such a discharge container includes a container body having a mouth and a discharge cap attached to the mouth, and the discharge cap discharges the liquid contained in the container body. It may include a discharge cylinder and a flap valve connected to the discharge cylinder. According to such a discharge container, when squeezing (pressing) the container body, the flow path cross-sectional area is reduced by swinging the flap valve within the discharge cylinder by an amount corresponding to the strength of the squeeze. It is possible to increase or decrease the discharge amount of the content liquid discharged from the discharge cylinder. In addition, once the flap valve swing amount reaches its limit, the discharge amount will be limited even if you squeeze it more strongly. This can prevent inconveniences such as dirt and contamination of the surrounding area from occurring.

JP 2019-99197 Publication

However, in the discharge container described in Patent Document 1, the amount of change in the cross-sectional area of the flow path that can be adjusted by swinging the flap valve is small, and when the content liquid is discharged by the squeeze amount or only by its own weight, the discharge container cannot be adjusted. The amount of change in the discharge amount that can be adjusted by changing the tilt angle of the container is small. However, depending on the type of liquid content and the use of the discharge container, there may be cases where it is desired to change the discharge amount more greatly depending on the squeeze amount or the tilt angle.

The present invention aims to solve these problems, and its purpose is to provide a dispensing container in which the amount of change in the dispensing amount can be increased or decreased by adjusting the amount of squeezing or the tilting angle to a certain extent. It is in.

The dispensing container of the present invention includes a container main body having a mouth portion, and a dispensing cap attached to the mouth portion, and the dispensing cap includes a dispensing tube for discharging the liquid content in the container body, and a dispensing tube dispensing with the dispensing tube. a flap valve connected to the discharge cylinder, and the flap valve swings upward within the discharge cylinder from the hinge part as a starting point due to the pressure of the content liquid, so that the flap valve is connected to the discharge cylinder. a flap valve body that increases a cross-sectional area of the flow path, an upper surface of the flap valve body is flush with the hinge portion, a lower surface of the flap valve body protrudes below the hinge portion , and The invention is characterized in that a hinge portion is continuous with the lower end surface of the discharge cylinder .

In the discharge container of the present invention, in the above configuration, it is preferable that a portion of the outer circumferential surface of the flap valve main body located on the opposite side of the hinge portion in a top view has a tapered surface shape whose diameter decreases downward.

In the discharge container of the present invention, in the above configuration, the flap valve main body has a thin part that is continuous with the hinge part and has the same thickness as the hinge part, and a thick part that is continuous with the thin part and has a thickness that is thicker than the hinge part. Preferably, it consists of parts.

In the discharge container of the present invention, in the above configuration, the discharge cap corresponds to a movable valve body that is movable up and down within the discharge cylinder along the discharge cylinder, and a movable valve body that is provided in the discharge cylinder and moves up. An upper stopper that restricts the upward movement of the movable valve body by coming into contact with the movable valve body, and a lower stopper that is provided in the discharge cylinder and restricts the downward movement of the movable valve body by coming into contact with the downwardly moving movable valve body. preferable.

According to the present invention, it is possible to provide a dispensing container in which the amount of change in the dispensing amount can be increased or decreased by adjusting the amount of squeezing or the tilting angle to a certain extent.

FIG. 1 is a sectional view showing a discharge container that is an embodiment of the present invention. 2 is a partially enlarged view of FIG. 1. FIG. FIG. 3 is a view of the discharge tube shown in FIG. 2 viewed from below.

Hereinafter, the present invention will be explained in more detail with reference to the drawings. Note that in this specification, the vertical direction refers to the vertical direction when the discharge container is in an upright state. That is, the upper direction is the upper direction in FIG. 1, and the lower direction is the opposite direction.

A discharge container 1 according to an embodiment of the present invention shown in FIG. 1 includes a container body 2 and a hinge cap 3. As shown in FIG. The hinge cap 3 is attached to the mouth 2a of the container body 2, and can close the mouth 2a and discharge the liquid contained in the container body 2 to the outside through the hinge cap 3.

The container main body 2 has a bottle shape having a cylindrical mouth 2a, a body that is continuous with the lower end of the mouth 2a and whose diameter is larger than the mouth 2a, and a bottom that closes the lower end of the body. In this embodiment, a laminated peelable container (delami container), which is a type of double container, is used as the container body 2. The container main body 2, which is a laminated peelable container, has an outer layer body 4 and an inner layer body 5, and has a structure in which the inner layer body 5 is housed inside the outer layer body 4. The outer layer 4 constitutes the outer shell of the container body 2 and has a shape corresponding to the container body 2. The body of the outer layer 4 has flexibility and can be dented by being squeezed, and can be restored to its original shape from the dented state. The inner layer 5 is formed in a bag shape and is thinner than the outer layer 4, and is removably laminated on the inner surface of the outer layer 4. The opening of the inner layer body 5 is connected to the open end of the mouth portion 2a, and the inside of the inner layer body 5 is a storage space for the liquid content. The inner layer body 5 can be peeled off from the inner surface of the outer layer body 4 and deformed to reduce its volume as the content liquid is discharged from the accommodation space.

An outside air inlet is provided at the bottom of the outer layer 4 to allow outside air to be introduced between the outer layer 4 and the inner layer 5. This outside air inlet can be constituted by a slit formed in a pinch-off portion at the bottom of the container body 2 formed by blow molding, for example. The outside air inlet is a space between the outer layer body 4 and the inner layer body 5 when the outer layer body 4 is restored to its original shape after squeezing the trunk of the outer layer body 4 and deforming the inner layer body 5 to reduce its volume. outside air can be introduced into the Note that the outside air inlet may be a hole in the outer layer 4, for example, as long as it can introduce outside air between the outer layer 4 and the inner layer 5 when the squeezed outer layer 4 is restored to its original shape. It can also be provided in other parts such as the mouth or the body, and its form is not limited to the slit, but can be in various shapes or configurations.

Such a container body 2, which is also called a delaminated container, is produced by, for example, coextruding a synthetic resin for the outer layer and a synthetic resin for the inner layer, which have low compatibility, to form a laminated parison, and then molding the laminated parison using a mold. It can be formed by blow molding. Further, the container body 2 can also be formed by blow molding using a mold after assembling a preform for an outer layer and a preform for an inner layer that have been previously formed. The double container used as the container body 2 is not limited to the above-mentioned laminated peelable container, but may also have a structure in which an inner layer body formed separately from the outer layer body is incorporated inside the outer layer body. Further, the container body 2 is not limited to a double container.

The liquid content may be a water-like liquid with low viscosity, such as soy sauce. However, the viscosity of the content liquid is not particularly limited. Moreover, the content liquid may be one in which solid matter is mixed in the liquid. The type of liquid content is not particularly limited, and may be, for example, food seasonings, drinks, shampoos, rinses, body soaps, cosmetics, or medicines.

The hinge cap 3 includes a movable valve body 6 and a hinge cap body 7. The movable valve body 6 is a spherical ball valve made of steel or synthetic resin, for example. However, the movable valve body 6 is not limited to a spherical shape. The hinge cap body 7 is configured as a single injection molded product made of, for example, synthetic resin, and includes a discharge cap body 8, a hinge 9, and an overcap 10 connected to the discharge cap body 8 via the hinge 9. It is equipped with In this embodiment, a discharge cap 11 is composed of a discharge cap main body 8 and a movable valve body 6. Note that the overcap 10 may be configured separately from the discharge cap main body 8.

The discharge cap main body 8 has a capped cylindrical shape, and includes a top wall 12 formed in a substantially disk shape and a cylindrical mounting tube 13 that is integrally provided on the outer periphery of the top wall 12. The mounting tube 13 is attached to the mouth 2a so as to surround the outer periphery of the mouth 2a, and the top wall 12 comes into contact with the open end of the mouth 2a. Note that, as shown in the figure, a seal cylinder 14 may be integrally provided on the lower surface of the top wall 12, which is formed to have a smaller diameter than the mounting cylinder 13 and comes into liquid-tight contact with the inner circumferential surface of the mouth portion 2a.

A fitting convex portion 15 is provided on the lower end side of the inner circumferential surface of the mounting tube 13, and this fitting convex portion 15 fits into a fitted convex portion 16 provided on the outer circumferential surface of the mouth portion 2a. As a result, the discharge cap main body 8 is attached to the mouth portion 2a in a state where it is prevented from coming off. That is, in this hinge cap 3, the discharge cap main body 8 is attached to the mouth portion 2a by plugging. The discharge cap main body 8 may be attached to the opening 2a by threading a female thread provided on the inner peripheral surface of the mounting tube 13 to a male thread provided on the outer peripheral surface of the opening 2a.

A discharge cylinder 18 having a cylindrical shape and having an upper end forming a discharge port 17 is provided integrally with the top wall 12 at a position slightly shifted from the center of the top wall 12 to the opposite side of the hinge 9 when viewed from above. . The discharge cylinder 18 includes an outer cylinder part 18a that is integrally connected to the top wall 12 and curves outward while gradually expanding in diameter upward, and a three-stage cylinder that extends downward from the lower end of the outer cylinder part 18a. It has a shaped inner cylinder part 18b. In addition, instead of the outer cylinder part 18a, or in addition to the outer cylinder part 18a, an inner cylinder part 18b may be integrally connected to the top wall 12.

The overcap 10 is formed into a capped cylindrical shape having approximately the same diameter as the discharge cap main body 8, and can open and close the discharge cylinder 18 and the top wall 12 of the discharge cap 11 by rotating via the hinge 9. . The overcap 10 has a fitting convex portion 19 provided on the inner periphery of the opening edge thereof and a fitting convex portion 20 provided on the outer periphery of the top wall 12, so that the discharge cylinder of the discharge cap 11 can be connected to the overcap 10. 18 and the top wall 12 can be kept covered, that is, in a closed state. When the overcap 10 is closed, the discharge cylinder 18 is covered by the overcap 10, and the cylindrical stopper 21 integrally provided on the inner surface of the overcap 10 is inserted into the inner peripheral surface of the inner cylinder part 18b of the discharge cylinder 18. The flow path inside the discharge cylinder 18 is closed. On the other hand, a collar-shaped knob 22 that projects radially outward is integrally provided on the outer peripheral surface of the overcap 10 on the opposite side of the hinge 9. By pulling up this knob 22, the hinge can be opened. The overcap 10 can be rotated about 9 in a direction away from the discharge cylinder 18 to open the discharge cylinder 18. In this way, the discharge cylinder 18 can be opened and closed by the overcap 10.

The inner cylinder part 18b of the discharge cylinder 18 includes a cylindrical upper wall 23 extending downward from the lower end of the outer cylinder part 18a, an upwardly inclined wall 24 whose diameter decreases downward from the lower end of the upper wall 23, and an upper inclined wall. A cylindrical inner wall 25 extending downward from the lower end of the inner wall 24, a downwardly inclined wall 26 whose diameter decreases downward from the lower end of the inner wall 25, and a cylindrical lower wall 27 extending downward from the lower end of the lower inclined wall 26. It has Note that the shapes of the upper wall 23, middle wall 25, and lower wall 27 are not limited to cylindrical shapes, and can be changed as appropriate depending on the shape of the movable valve body 6, etc.

A lip portion 28 is provided on the radially inner side of the upper inclined wall 24. An upper stopper 29 is provided at the upper part of the inner wall 25 in the radial direction. Further, a diaphragm portion 30 extending from the upper stopper 29 to the lower inclined wall 26 is provided on the radially inner side of the inner wall 25 . A lower stopper 31 is provided on the radially inner side of the lower inclined wall 26. A flap valve 32 is provided inside the lower wall 27 in the radial direction. In this way, the flap valve 32 is arranged below the lower stopper 31, the upper stopper 29 is arranged above the lower stopper 31, and the lip portion 28 is arranged above the upper stopper 29. The movable valve body 6 can move up and down within the discharge cylinder 18 along the discharge cylinder 18, the upper stopper 29 restricts the rise of the movable valve body 6 by coming into contact with the rising movable valve body 6, and the lower stopper 31 The lowering of the movable valve body 6 is restricted by coming into contact with the movable valve body 6 that is moving downward.

As shown in FIGS. 2 and 3, a flap valve 32 is connected to the lower wall 27. As shown in FIG. The flap valve 32 has a hinge portion 32a that is connected to the lower wall 27, and swings upward within the lower wall 27 from the hinge portion 32a as a starting point due to the pressure of the content liquid, thereby increasing the cross-sectional area of the flow path within the lower wall 27. A flap valve main body 32b is provided. The upper surface 32f of the flap valve body 32b is flush with the hinge portion 32a, and the lower surface 32g of the flap valve body 32b protrudes below the hinge portion 32a.

Although the upper surface 32f of the flap valve main body 32b is flush with the lower end surface 33 of the lower wall 27, the present invention is not limited thereto. The hinge portion 32a is continuous with the lower end surface 33 of the lower wall 27. Note that the hinge portion 32a is not limited to this, and may be continuous with the inner circumferential surface 27a of the lower wall 27, for example. The flap valve main body 32b consists of a thin part 32c that is continuous with the hinge part 32a and has the same thickness as the hinge part 32a, and a thick part 32d that is continuous with the thin part 32c and is thicker than the hinge part 32a. Note that the flap valve main body 32b is not limited to a configuration consisting of a thin wall portion 32c and a thick wall portion 32d, but may be configured to include a thin wall portion 32c or a thick wall portion 32d, for example.

The portion of the outer circumferential surface 32e of the flap valve main body 32b located on the opposite side of the hinge portion 32a when viewed from above has a tapered surface shape whose diameter decreases downward, but the shape is not limited to this. Here, "the part located on the opposite side of the hinge part 32a when viewed from above" refers to the half-circumferential part located on the opposite side of the hinge part 32a among the angular range over the entire circumference of the flap valve main body 32b when viewed from above. It means.

The flap valve main body 32b has a circular disk shape when viewed from above, and can swing in the vertical direction starting from a hinge portion 32a disposed at one location on its outer periphery. The hinge portion 32a is preferably provided on the hinge 9 side of the hinge cap 3 when viewed from above. Here, "the hinge portion 32a is provided on the side of the hinge 9 when viewed from above" means that the hinge portion 32a is provided in a half circumferential portion located on the side of the hinge 9 out of the angular range extending over the entire circumference of the flap valve body 32b when viewed from the top. This means that the hinge portion 32a is provided such that the circumferential center of the portion 32a is located. Note that the flap valve 32 is not limited to a disk shape, and may be, for example, a square plate shape. Furthermore, the hinge portions 32a may be arranged at two or more locations on the outer periphery of the flap valve main body 32b.

The lower stopper 31 is formed by the lower end of the inner peripheral surface of the downwardly inclined wall 26. By seating the movable valve body 6 on the lower stopper 31, circulation of air through the inside of the discharge cylinder 18 is blocked or suppressed. Although not shown, the lower stopper 31 is configured to form a holding gap between it and the movable valve body 6 seated on the lower stopper 31, which holds the liquid content and prevents the flow of air. Good too. That is, a notch portion large enough to be sealed with the content liquid may be provided in a portion of the lower stopper 31. Depending on the type of liquid, there is a risk that the liquid may solidify and cause the movable valve body 6 to stick to the lower stopper 31, but by providing such a notch, it is possible to prevent the movable valve body 6 from sticking. can be prevented or suppressed. Note that the lower stopper 31 may be formed without depending on the lower inclined wall 26. For example, a flange wall shaped like an annular flange may be provided in place of the downwardly inclined wall 26, and the lower stopper 31 may be formed by the upper surface of the flange wall.

The flap valve main body 32b is configured to be able to collide with the movable valve body 6 by swinging upward by squeezing the body when the movable valve body 6 is stuck to the lower stopper 31 due to solidification of the content liquid. has been done. By configuring the flap valve main body 32b in this way, when the movable valve body 6 becomes stuck to the lower stopper 31, the stuck state can be released by causing the flap valve main body 32b to collide with the lower stopper 31. However, the flap valve main body 32b is not limited to such a configuration that can collide with the movable valve body 6.

As shown in FIG. 1, in this embodiment, the constriction portion 30 extends along the axial direction of the discharge cylinder 18 from the upper stopper 29 toward the lower stopper 31, and is located on the opposite side of the hinge 9 when viewed from above. It has a C-shape forming a main flow path 34. Here, "the main flow path 34 is formed on the opposite side of the hinge 9 when viewed from above" means that the main flow path 34 is formed in a half-circumferential portion located on the opposite side of the hinge 9 out of the angular range extending over the entire circumference of the discharge cylinder 18 when viewed from the top. , means that the main flow path 34 is formed such that the circumferential center of the main flow path 34 is located. Furthermore, the expression that the aperture part 30 is "C-shaped" means that the aperture part 30 is provided over an angular range exceeding half a circumference when viewed from above, that is, the main flow passage 34 is provided over a half circumference when viewed from above. This means that it is provided over an angular range of less than More specifically, the circumferential center of the main flow path 34 is located at the center of the half circumference located on the opposite side of the hinge 9 within the angular range over the entire circumference of the discharge cylinder 18 when viewed from above. . However, the circumferential position of the main flow path 34 can be changed as appropriate. Further, the aperture portion 30 is provided over approximately 240° when viewed from above. However, the angular range in which the aperture portion 30 is provided can be changed as appropriate. The main flow path 34 and the throttle section 30 have an arc shape when viewed from above. However, the shapes of the main flow path 34 and the constricted portion 30 are not limited to such a circular arc shape. Although the throttle portion 30 is provided so as to be continuous in the circumferential direction of the discharge cylinder 18, the present invention is not limited thereto, and may be provided intermittently in the circumferential direction of the discharge cylinder 18. The throttle portion 30 has an inner diameter that is larger than the outer diameter of the spherical movable valve body 6 and is constant from the lower end to the upper end. Although the inner diameter of the throttle part 30 can be changed as appropriate, it is preferably set so that the movable valve body 6 can be smoothly guided up and down. Alternatively, a configuration may be adopted in which the aperture section 30 is not provided.

The upper stopper 29 can restrict the movement of the movable valve body 6 from rising by contacting only a part of the outer periphery of the movable valve body 6 when viewed from above. In this embodiment, the upper stopper 29 includes three claws 35 arranged at equal intervals in the circumferential direction. Each pawl 35 projects diagonally upward from the upper end of the constriction portion 30 toward the radially inner side of the discharge cylinder 18 . However, the number, arrangement, and shape of the claws 35 constituting the upper stopper 29 can be changed as appropriate. However, it is preferable that the claw 35 is not provided at a position overlapping the main flow path 34 when viewed from above. The upper stopper 29 is not limited to the claw 35.

In this embodiment, the lip portion 28 has a C-shape that projects obliquely upward from the inner circumferential surface of the upper inclined wall 24 and forms a cutout portion 36 on the opposite side of the hinge 9 when viewed from above. Here, "forming the notch 36 on the side opposite to the hinge 9 when viewed from above" refers to a half-circumferential portion located on the opposite side from the hinge 9 within the angular range over the entire circumference of the discharge cylinder 18 when viewed from the top. This means that the notch portion 36 is formed such that the circumferential center of the notch portion 36 is located at. Furthermore, the expression that the lip portion 28 is “C-shaped” means that the lip portion 28 is provided over an angular range exceeding half the circumference when viewed from above, that is, the notch portion 36 is provided over an angular range of more than half the circumference when viewed from above. This means that it is provided over an angular range of less than half the circumference. More specifically, the circumferential center of the notch 36 is located at the center of the half circumference located on the opposite side of the hinge 9 within the angular range over the entire circumference of the discharge cylinder 18 when viewed from above. There is. However, the circumferential position of the notch 36 can be changed as appropriate. Further, the lip portion 28 is provided over approximately 240° when viewed from above. However, the angular range in which the lip portion 28 is provided can be changed as appropriate. The notch portion 36 and the lip portion 28 have an arcuate shape when viewed from above. However, the shapes of the notch portion 36 and the lip portion 28 are not limited to such a circular arc shape. The lip portion 28 has an inner diameter larger than the inner diameter of the constriction portion 30. The inner diameter of the lip portion 28 may be the same as the inner diameter of the constricted portion 30 or may be smaller than the inner diameter of the constricted portion 30. The lip portion 28 may be provided on the inner circumferential surface of the upper wall 23 or the middle wall 25 instead of being provided on the inner circumferential surface of the upper inclined wall 24. Moreover, the upper wall 23 and the middle wall 25 may be configured to have the same diameter without providing the upper inclined wall 24. Alternatively, a configuration may be adopted in which the lip portion 28 is not provided.

The procedure for discharging the content liquid by the dispensing container 1 according to the present embodiment is, for example, as follows. First, the user opens the overcap 10, tilts the discharge container 1 so that the overcap 10 is on top, and squeezes the body of the container body 2. Then, due to the increase in the internal pressure of the container body 2, the weight of the content liquid, and the weight of the movable valve body 6, the movable valve body 6 moves away from the lower stopper 31, comes into contact with the upper stopper 29, and stops. Also, at this time, due to the increase in the internal pressure of the container body 2 and the weight of the content liquid, the flap valve 32 swings and the flow passage cross-sectional area inside the lower wall 27 increases, and the inside of the accommodation space of the container body 2 is increased. The content liquid flows into the inside of the lower wall 27 from there. At this time, the flap valve 32 swings as the body is squeezed, increasing the cross-sectional area of the flow path, so the liquid content is not discharged all at once at the beginning of the squeeze, and the liquid content is Adjustment of discharge amount is easy. Furthermore, in this embodiment, the hinge portion 32a of the flap valve 32 is connected to the lower end surface 33 of the lower wall 27, so that the size of the flap valve body 32b is ensured, so that the content liquid can be discharged at the initial stage of squeezing. quantity is suppressed. Furthermore, in this embodiment, the flap valve main body 32b is composed of a thin wall portion 32c and a thick wall portion 32d, thereby ensuring ease of deformation of the hinge portion 32a and ensuring the size of the flap valve main body 32b. has been done.

Furthermore, in this embodiment, the upper surface 32f of the flap valve body 32b is flush with the hinge portion 32a, and the lower surface 32g of the flap valve body 32b is configured to protrude below the hinge portion 32a. 32b has a wide operating range. Therefore, the amount of change in the cross-sectional area of the flow path that can be adjusted by swinging the flap valve 32 is large, and the amount of change in the discharge amount that can be adjusted by the squeeze amount is large. Furthermore, in this embodiment, the portion of the outer circumferential surface 32e of the flap valve main body 32b located on the opposite side of the hinge portion 32a when viewed from above has a tapered surface shape whose diameter decreases downward. The amount of change in the discharge amount that can be adjusted by the squeeze amount is increasing.

The content liquid that has flowed into the inside of the lower wall 27 due to the swinging of the flap valve 32 mainly flows linearly through the main flow path 34 and the notch 36, and is discharged from the discharge port 17. Therefore, the content liquid is prevented from being discharged in a wide angle shape, and the content liquid can be discharged in a rectified state. Furthermore, the liquid content that has flowed into the inside of the lower wall 27 also flows into the small gap between the constriction part 30 and the movable valve body 6, but the flow that has passed through the gap is bent by the lip part 28, and the main flow path 34 and merges with the main flow that has passed through the notch 36. Therefore, also from this point of view, the content liquid is prevented from being discharged in a wide-angle shape. If the amount of squeeze is large and the amount of oscillation of the flap valve 32 reaches its limit, the discharge amount will be limited even if you squeeze harder than that. For example, if the content liquid is of low viscosity like water, In addition, it is possible to prevent the inconvenience of the content liquid from being vigorously discharged and staining the surrounding area.

After discharging the content liquid, the discharge container 1 is returned to the upright position to stop discharging the content liquid, and the movable valve body 6 descends from the upper stopper 29 toward the lower stopper 31, and the inside of the discharge cylinder 18 is The remaining liquid is drawn back. By pulling back the remaining liquid (suck back), dripping from the discharge port 17 is suppressed. Moreover, since the movable valve body 6 is seated on the lower stopper 31, it is possible to suppress contact of outside air to the liquid inside the container main body 2, so that the quality of the liquid inside can be maintained satisfactorily.

It goes without saying that the present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit thereof.

For example, in the embodiment described above, the discharge cap 11 includes the movable valve body 6, the upper stopper 29, and the lower stopper 31 in order to exhibit the suckback function, but the present invention is not limited to this.

1 Discharge container 2 Container main body 2a Mouth part 3 Hinge cap 4 Outer layer body 5 Inner layer body 6 Moving valve body 7 Hinge cap body 8 Discharge cap body 9 Hinge 10 Overcap 11 Discharge cap 12 Top wall 13 Mounting cylinder 14 Seal cylinder 15 Engagement Protrusion 16 Engaged protrusion 17 Discharge port 18 Discharge cylinder 18a Outer cylinder part 18b Inner cylinder part 19 Fitting convex part 20 Fitting convex part 21 Plug body 22 Knob piece 23 Upper wall 24 Upper inclined wall 25 Middle wall 26 Downward inclined Wall 27 Lower wall 28 Lip portion 29 Upper stopper 30 Restricted portion 31 Lower stopper 32 Flap valve 32a Hinge portion 32b Flap valve body 32c Thin wall portion 32d Thick wall portion 32e Outer peripheral surface 32f Upper surface 32g Lower surface 33 Lower end surface 34 Main channel 35 Claw 36 Cut Notch

Claims (4)

comprising a container body having a mouth, and a discharge cap attached to the mouth;
The discharge cap includes a discharge cylinder for discharging the liquid content in the container body, and a flap valve connected to the discharge cylinder,
The flap valve has a hinge part connected to the discharge cylinder, and the pressure of the content liquid causes the flap valve to swing upward within the discharge cylinder from the hinge part as a starting point, thereby increasing the cross-sectional area of the flow path in the discharge cylinder. Comprising a flap valve body,
The upper surface of the flap valve main body is flush with the hinge part, and the lower surface of the flap valve main body projects below the hinge part ,
A discharge container characterized in that the hinge portion is continuous with a lower end surface of the discharge tube . The discharge container according to claim 1, wherein a portion of the outer peripheral surface of the flap valve main body located on the opposite side of the hinge portion when viewed from above has a tapered surface shape whose diameter decreases downward. 3. The flap valve body according to claim 1 or 2 , wherein the flap valve main body includes a thin part that is connected to the hinge part and has the same thickness as the hinge part, and a thick part that is connected to the thin part and is thicker than the hinge part. Discharge container as described. The discharge cap restricts the upward movement of the movable valve body by coming into contact with a movable valve body that can move up and down within the discharge cylinder along the discharge cylinder, and the movable valve body that is provided in the discharge cylinder and moves upward. and a lower stopper that is provided in the discharge cylinder and that restricts the downward movement of the movable valve body by coming into contact with the movable valve body that descends . discharge container.

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