JP7301475B2 - Dispensing cap - Google Patents

Description

The present invention relates to a metered discharge cap.

A metered discharge cap that is attached to the mouth of a container body is known. For example, the fixed quantity discharge cap described in Patent Document 1 has a flow channel that communicates the storage space of the content liquid in the container body and the discharge port, an initial position that opens the flow channel, and a closing position that closes the flow channel. a metering plug holding member provided with a tube that holds the metering plug radially inwardly so as to be axially movable between positions, the metering plug holding member displacing the content so as to move the metering plug from the initial position to the closed position; It has an introduction port for introducing from the housing space to the radially inner side of the cylinder.

Therefore, when the container body is tilted and squeezed, the content liquid in the storage space is introduced radially inwardly of the cylinder through the introduction port and flows through the channel while moving the metering plug from the initial position toward the closed position. is ejected from the ejection port. Then, when the fixed amount plug reaches the closed position, the flow path is closed and the discharge of the content liquid is stopped. In this way, since the liquid content can be discharged only while the metering plug moves from the initial position to the closed position, it is possible to discharge the liquid content at a substantially constant amount at one time.

JP 2015-30488 A

However, for the metered discharge cap as described in Patent Document 1, for example, it is necessary to manufacture a plurality of types of metering plug holding members provided with inlets of appropriate sizes according to the viscosity of the content liquid. , multiple types of molds, etc. are required, and there is room for improvement in terms of cost.

SUMMARY OF THE INVENTION An object of the present invention is to solve such problems, and an object of the present invention is to provide a metered discharge cap capable of adjusting the size of the introduction port.

The fixed-quantity discharge cap of the present invention is a fixed-quantity discharge cap that is attached to the mouth of a container body and has a flow path that communicates the containing space of the content liquid in the container body and the discharge port, wherein the fixed-quantity stopper is the an inner member having an inner cylinder radially inwardly held so as to be axially movable between an initial position opening the flow path and a closed position closing the flow path; and holding the inner cylinder radially inwardly. an outer member that is provided with an outer cylinder and held in the opening; an introduction port for introducing from the inner cylinder to the radially inner side of the inner cylinder, and the introduction port is formed by overlapping an inner hole penetrating the inner member and an outer hole penetrating the outer member, and the inner It is characterized by comprising a window whose size is adjusted by adjusting the relative position of the cylinder and the outer cylinder in the circumferential direction.

In the metered-discharge cap of the present invention, in the configuration described above, the inner member has an inner cylinder end wall extending radially inward from an end of the inner cylinder on the initial position side, and the inner hole defines the inner cylinder. The outer member has an outer cylinder end wall extending radially inward from an end of the outer cylinder on the initial position side, and Preferably, a hole is formed across the barrel and the barrel end wall.

In the metered discharge cap of the present invention, in the configuration described above, the outer member has another discharge port in which the inner cylinder is arranged and communicates with the housing space, and the discharge port and the other discharge port are provided. It is preferable to have an opening and closing member capable of opening and closing the .

ADVANTAGE OF THE INVENTION According to this invention, the fixed quantity discharge cap which can adjust the size of an inlet can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a vertical cross-sectional view showing a container having a metered discharge cap that is an embodiment of the present invention; FIG. 2 is a cross-sectional view of the cross section taken along line AA of FIG. 1 as viewed from below, with the introduction port adjusted to be smaller than the state shown in FIG. FIG. 2 is a vertical cross-sectional view showing the state of the container shown in FIG. 1 at the time of constant discharge. FIG. 2 is a vertical cross-sectional view showing the state of the container shown in FIG. 1 during continuous discharge.

Hereinafter, the present invention will be described more specifically by way of example with reference to the drawings.

As shown in FIG. 1, a metered discharge cap 1 (hereinafter also referred to as cap 1) according to one embodiment of the present invention is attached to a mouth portion 2a of a container body 2 to form a container 3. there is

The container main body 2 has a cylindrical mouth portion 2a and a bottomed tubular trunk portion 2b connected to the lower end portion of the mouth portion 2a. Note that the mouth portion 2a may have a cylindrical shape other than a cylindrical shape. The inside of the container main body 2 serves as a storage space S in which the content liquid L is stored. The trunk portion 2b has flexibility that allows squeezing (squeezing operation). The trunk portion 2b is not limited to a cylindrical shape with a bottom, and can be designed in various shapes. The container body 2 is made of synthetic resin, for example, and is formed by blow molding, for example.

In the present embodiment, the vertical direction means the direction along the central axis O of the mouth portion 2a when the cap 1 is attached to the mouth portion 2a and the cap 1 is closed as shown by the solid line in FIG. "Upward" means the direction from the body 2b to the mouth part 2a, and "downward" means the opposite direction. Further, in the present embodiment, a cross section including the central axis O is called a vertical cross section.

The type of content liquid L may be, for example, cosmetics, food, or the like, and is not particularly limited. Also, the viscosity of the content liquid L is not particularly limited.

The cap 1 has a metering stopper 4 , an inner member 5 , an outer member 6 , an opening/closing member 7 and an upper lid 8 . The metering plug 4 is fitted in the inner member 5, the inner member 5 is fitted in the outer member 6, the outer member 6 is held in the mouth portion 2a, and the opening/closing member 7 is rotatable to the outer member 6 via the lower hinge 9. , and the upper lid 8 is rotatably connected to the opening/closing member 7 via an upper hinge 10 . The lower hinge 9 and the upper hinge 10 are arranged so as to sandwich the central axis O when viewed from above. The outer member 6, the opening/closing member 7, and the upper lid 8 form an integrally formed cap body 11. As shown in FIG. Note that the outer member 6, the opening/closing member 7, and the upper lid 8 may be formed separately. Each of the metering plug 4, the inner member 5, and the cap body 11 is made of synthetic resin, for example, and is formed by, for example, injection molding.

Although the details will be described later, the cap 1 has a flow path R that allows communication between the accommodation space S and the discharge port 12 provided in the opening/closing member 7 . Further, the outer member 6 has a continuous discharge port 13 which is another discharge port communicating with the housing space S. As shown in FIG.

The metering plug 4 has a cylindrical shape with a bottom. However, the shape of the metering plug 4 is not limited to this, and may be, for example, columnar or spherical.

The inner member 5 has a cylindrical inner cylinder 5a and an inner cylinder end wall 5b extending radially inward from the lower end of the inner cylinder 5a, that is, the end on the initial position side, which will be described later. The inner cylinder 5a is arranged concentrically with the central axis O of the mouth portion 2a, but the present invention is not limited to this.

The inner cylinder 5a holds the metering plug 4 inside in the radial direction so that it can move in the axial direction, that is, in the vertical direction, between an initial position that opens the flow path R and a closed position that closes the flow path R. . In FIG. 1, the solid line indicates the metering plug 4 in the initial position, while the two-dot chain line indicates the metering plug 4 in the closed position.

The outer member 6 includes a cylindrical outer cylinder 6a that holds the inner cylinder 5a radially inward, and an outer cylinder end wall 6b that extends radially inward from the lower end of the outer cylinder 6a, that is, the end on the initial position side. have. Further, the outer member 6 has a ceiling wall 6c that extends radially outward from the upper end portion of the outer cylinder end wall 6b and that has a circular ring shape in top view and is in close contact with the upper end portion of the mouth portion 2a. The outer peripheral edge of the top wall 6c is integrally connected with an engaging cylinder 6d that is screwed with the outer peripheral surface of the mouth portion 2a. The engagement tube 6d may be configured to engage with the outer peripheral surface of the mouth portion 2a by undercut engagement instead of screwing. At the lower end of the engaging tube 6d is a tamper-evident ring 6f that is engaged with an annular projection provided on the outer peripheral surface of the mouth portion 2a and separated from the engaging tube 6d by breaking the weakened portion 6e. is provided. In addition, it is good also as a structure which does not provide the ring 6f.

The outer member 6 has a continuous discharge cylinder 6g extending upward from the top wall 6c. The continuous discharge cylinder 6g has a continuous discharge port 13 formed inside in the radial direction thereof. An inner cylinder 5 a is arranged radially inside the continuous discharge port 13 . Also, in a portion of the top wall 6c radially inward of the continuous discharge cylinder 6g, three communication holes 6h for communicating the continuous discharge port 13 and the housing space S are formed at intervals in the circumferential direction as shown in FIG. are spaced side by side. The number, shape, arrangement, etc. of the communication holes 6h can be appropriately designed. As shown in FIG. 1, a lower fitting cylinder 6i to which the outer peripheral wall 7a of the opening/closing member 7 is detachably fitted extends upward from a portion of the top wall 6c radially outside the continuous discharge cylinder 6g. .

The opening/closing member 7 has an outer peripheral wall 7a and an upper wall 7b extending radially inward from an upper end portion of the outer peripheral wall 7a. The lower hinge 9 connects the outer peripheral wall 7a and the engagement tube 6d. A discharge cylinder 7c that forms the discharge port 12 radially inward extends upward from a central portion of the upper wall 7b in top view. The discharge cylinder 7c is arranged concentrically with the central axis O of the mouth portion 2a, but the present invention is not limited to this. An opening 7d communicating with the ejection port 12 is provided in the upper wall 7b. A predetermined gap G is provided between the lower surface of the upper wall 7b and the upper end surface of the inner cylinder 5a. A cylinder wall 7f extends downward from a portion of the upper wall 7b radially outside the discharge cylinder 7c, and is provided concentrically with the discharge cylinder 7c and has a notch 7e at a predetermined position in the circumferential direction. The cylinder wall 7f extends to the vicinity of the upper end surface of the inner cylinder 5a on the radially outer side of the inner cylinder 5a. Also, the axial length of the cylinder wall 7f can be appropriately designed. Moreover, it is good also as a structure which does not provide 7 f of cylinder walls.

A seal cylinder 7g, which is in close contact with the inner peripheral surface of the continuous discharge cylinder 6g, extends downward from a portion of the upper wall 7b radially outside the cylinder wall 7f. An upper fitting cylinder 7h to which the outer peripheral edge of the dome-shaped top wall 8a of the upper lid 8 is detachably fitted extends upward from a portion of the upper wall 7b radially outside the discharge cylinder 7c. The opening/closing member 7 can open and close the continuous discharge port 13 by rotating via the lower hinge 9 .

The accommodation space S communicates with the discharge port 12 through the flow path R in a state where the open/close member 7 closes the continuous discharge port 13 . The flow path R includes three communicating holes 6h, a notch 7e, a gap G and an opening 7d. The metering plug 4 is configured to come into contact with the upper wall 7b by moving from the initial position to the closed position, thereby closing the flow path R. As shown in FIG. In addition, the metering plug 4 is not limited to a configuration in which the channel R is closed by contact with the upper wall 7b as long as the channel R can be closed at the closed position.

The upper lid 8 has a top wall 8a. The upper hinge 10 connects the outer peripheral edge of the top wall 8 a and the outer peripheral wall 7 a of the opening/closing member 7 . A cylindrical seal body 8b that is in close contact with the inner peripheral surface of the discharge cylinder 7c extends downward from the center portion of the top wall 8a in top view. A support cylinder 8c concentric with the seal body 8b extends downward from a radially outer portion of the top wall 8a relative to the seal body 8b. The lower end of the support tube 8c abuts on the upper wall 7b of the opening/closing member 7. As shown in FIG. The upper lid 8 can open and close the discharge port 12 by rotating via the upper hinge 10 . The shape of the upper lid 8 can be designed appropriately.

The cap 1 has two inlets 14 for introducing the content liquid L from the housing space S into the inner cylinder 5a in the radial direction so as to move the metering plug 4 from the initial position to the closed position. As shown in FIG. 2, the two introduction ports 14 are arranged across the axis of the inner cylinder 5a in bottom view. Each inlet 14 is composed of a window 15 formed by overlapping an inner hole 15a penetrating the inner member 5 and an outer hole 15b penetrating the outer member 6 . The inner hole 15a is formed across the inner tube 5a and the inner tube end wall 5b, and the outer hole 15b is formed across the outer tube 6a and the outer tube end wall 6b. However, the position of the window 15 is not limited to this. For example, the inner hole 15a may be formed only at the lower end of the inner cylinder 5a and the outer hole 15b may be formed only at the lower end of the outer cylinder 6a.

The inner member 5 is detachably attached to the outer member 6 so that the relative position of the inner cylinder 5a and the outer cylinder 6a in the circumferential direction can be adjusted. That is, the inner member 5 and the outer member 6 are interposed through a fitting portion 16 which is fitted so as to maintain the relative position in the vertical direction when the inner cylinder end wall 5b contacts the outer cylinder end wall 6b. are in contact with each other. In addition, although the fitting part 16 is comprised by a pair of cyclic|annular convex part, it is not restricted to this. In addition, the inner member 5 and the outer member 6 are in contact with each other through a rotation restricting portion 17 that holds the relative positions of the inner cylinder 5a and the outer cylinder 6a in the circumferential direction when the fitting concave-convex portion 16 is fitted. . Although the rotation restricting portion 17 is composed of a pair of longitudinal ribs arranged in an annular shape, the present invention is not limited to this. The inner member 5 can be attached to and detached from the outer member 6 by opening the continuous discharge port 13 with the open/close member 7 . It should be noted that the relative position of the inner cylinder 5a and the outer cylinder 6a in the circumferential direction may be adjusted by rotating the inner member 5 with respect to the outer member 6 without attaching or detaching the inner member 5 with respect to the outer member 6. good.

The size of the window 15 is adjusted by adjusting the circumferential relative positions of the inner cylinder 5a and the outer cylinder 6a. Therefore, each window 15, that is, each introduction port 14 can be adjusted to an appropriate size in the manufacturing process of the cap 1, for example, depending on the viscosity of the content liquid L, for example. For example, the greater the viscosity of the content liquid L, the greater the adjustment of each inlet 14 can be made. The number of windows 15 and inlets 14 is not limited to two, and can be designed as appropriate. Further, the inner member 5 may be configured without the inner cylinder end wall 5b, or alternatively or additionally, the outer member 6 may be configured without the outer cylinder end wall 6b.

The inner cylinder 5a is provided with a stopper 18 for stopping the metering plug 4 moving from the initial position toward the closed position at a position beyond the closed position or at the closed position. Although the stopper 18 is configured by an annular convex portion that protrudes from the inner peripheral surface of the upper end portion of the inner cylinder 5a, it is not limited to this.

When using the container 3, the upper lid 8 is opened from the state shown in FIG. 1, the container 3 is tilted as shown in FIG. 3, and the body 2b is squeezed. , is introduced radially inward of the inner cylinder 5a from the accommodation space S through each introduction port 14, and receives the hydraulic pressure, thereby closing the metering plug 4 from the initial position as indicated by the white arrow in FIG. Move to position. Therefore, since the content liquid L can be discharged from the discharge port 12 through the flow path R only until the metering plug 4 moves from the initial position to the closed position, the amount of the content liquid L discharged at one time is regulated to be substantially constant. A fixed amount of ink can be discharged.

In addition, the container 3 can be selectively used for fixed amount discharge and continuous discharge as required. By opening the opening/closing member 7 from the state shown in FIG. 1, tilting the container 3 as shown in FIG. , and can be continuously discharged from the continuous discharge port 13 through each communication hole 6h. At this time, the content liquid L is introduced radially inwardly of the inner tube 5a through each of the inlets 14, and the metering plug 4 is moved from the initial position toward the closed position as indicated by the white arrow in FIG. Although it moves, the stopper 18 prevents the metering plug 4 from slipping out of the inner cylinder 5a.

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the above-described embodiment, the body portion 2b is configured to be squeezable. Further, the inner cylinder 5a may have a cylindrical shape other than a cylindrical shape, and the shape of the inner cylinder 5a can be appropriately changed in accordance with the shapes of the metering plug 4 and the outer cylinder 6a. Alternatively, the opening/closing member 7 may be configured separately from the outer member 6 and the engaging cylinder 6d may be provided on the opening/closing member 7 instead of the outer member 6. FIG. Alternatively, a configuration may be adopted in which only a fixed amount of liquid is discharged without providing the continuous discharge cylinder 6g. Alternatively, a configuration without the upper lid 8 may be employed.

Reference Signs List 1 metered discharge cap 2 container body 2a mouth portion 2b body portion 3 container 4 metering plug 5 inner member 5a inner cylinder 5b inner cylinder end wall 6 outer member 6a outer cylinder 6b outer cylinder end wall 6c ceiling wall 6d engagement cylinder 6e Weakened portion 6f Ring 6g Continuous discharge cylinder 6h Communication hole 6i Lower fitting cylinder 7 Opening/closing member 7a Outer peripheral wall 7b Upper wall 7c Discharge cylinder 7d Opening 7e Notch 7f Cylinder wall 7g Seal cylinder 7h Upper fitting cylinder 8 Upper cover 8a Top wall 8b Seal body 8c Support tube 9 Lower hinge 10 Upper hinge 11 Cap body 12 Discharge port 13 Continuous discharge port 14 Inlet port 15 Window 15a Inner hole 15b Outer hole 16 Fitting portion 17 Rotation restricting portion 18 Stopper L Content liquid S Storage space O Center Axis R Channel G Gap

Claims (3)

A fixed-quantity discharge cap that is attached to the mouth of a container body and has a flow path that communicates a liquid storage space in the container body with a discharge port,
an inner member comprising an inner cylinder that radially inwardly retains the metering plug so as to be axially movable between an initial position that opens the flow path and a closed position that closes the flow path;
an outer member that includes an outer cylinder that retains the inner cylinder radially inward and that is held by the mouth;
an introduction port for introducing the content liquid from the storage space to the radially inner side of the inner cylinder on the side of the initial position with respect to the metering plug so as to move the metering plug from the initial position to the closed position. death,
The introduction port is formed by overlapping an inner hole penetrating the inner member and an outer hole penetrating the outer member, and is large by adjusting the relative position of the inner cylinder and the outer cylinder in the circumferential direction. A metered discharge cap characterized by comprising a window whose thickness is adjusted. The inner member has an inner cylinder end wall extending radially inward from an end of the inner cylinder on the initial position side, and the inner hole extends across the inner cylinder and the inner cylinder end wall. is formed and
The outer member has an outer cylinder end wall extending radially inward from an end of the outer cylinder on the initial position side, and the outer hole extends across the outer cylinder and the outer cylinder end wall. 2. The dispensing cap of claim 1, wherein the dispensing cap is formed. The outer member has another discharge port in which the inner cylinder is arranged and communicates with the accommodation space,
3. The fixed-quantity discharge cap according to claim 1, further comprising an opening/closing member that includes the discharge port and that can open and close the other discharge port.

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