JP7204305B2 - 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 includes a discharge port, a flow path that communicates the storage space of the content liquid in the container body and the discharge port, an initial position for opening the flow channel, and a flow path. A holding cylinder that is axially movably held radially inwardly between a closed position that closes the channel, and a radial direction of the holding cylinder from the storage space so as to move the metering plug from the initial position to the closed position. It has an introduction port for introducing inside.

Therefore, when the container body is tilted and squeezed, the content liquid in the storage space is introduced radially inwardly of the holding cylinder through the introduction port, moving the metering plug from the initial position toward the closed position, and the flow path. It flows and is discharged from the discharge 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, the fixed quantity discharge cap as described in Patent Document 1 can only discharge the content liquid in a straight shape, not in a shower shape.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such problems, and an object thereof is to provide a metered discharge cap capable of discharging the content liquid in a straight or shower form as required. be.

The metered discharge cap of the present invention comprises an inner member that is held by the mouth of a container body and that has a shower outlet having a plurality of holes that are eccentrically arranged with respect to the mouth; and the inner member includes an inner flow path for communicating the storage space of the content liquid in the container body and the shower outlet, and the metering plug. a holding cylinder that retains the metering plug radially inward so as to be axially movable between an initial position that opens the inner channel and a closed position that closes the inner channel; an introduction port for introducing the content liquid from the accommodation space to the inside in the radial direction of the holding cylinder so as to move, and the outer member is arranged such that the straight discharge port is aligned with the shower discharge port, so that the shower discharge port is aligned with the shower discharge port. A shower discharge position where the content liquid can be discharged from the discharge port in a shower-like manner, and the straight discharge port is displaced from the shower discharge port, so that the content liquid is directed from the shower discharge port toward the straight discharge port. Between a straight discharge position at which the content liquid can be discharged straight from the straight discharge port by flowing through the outer flow path between the outer member and the inner member, and around the axis of the mouth portion It is characterized by being rotatable.

In the metered discharge cap of the present invention, in the configuration described above, the inner member is held by the mouth portion and is held by the inner member main body having one end portion on the initial position side of the holding cylinder, and the inner member main body. and an additional member having the shower outlet and the other end portion of the holding cylinder.

According to the present invention, it is possible to provide a metered discharge cap capable of discharging the content liquid in straight or shower form as required.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a vertical cross-sectional view showing a container having a metered discharge cap according to the first embodiment of the present invention; FIG. 2 is a longitudinal sectional view showing a state in which the content liquid is straightly discharged from the container shown in FIG. 1; FIG. 2 is a vertical cross-sectional view showing how the content liquid is discharged from the container shown in FIG. 1 in the form of a shower; Fig. 10 is a vertical cross-sectional view showing a container having a metered discharge cap, which is a second embodiment of the present invention; 5 is a vertical cross-sectional view showing a state in which the outer member has been rotated halfway from the state shown in FIG. 4; FIG. FIG. 5 is a vertical cross-sectional view showing how the content liquid is discharged from the container shown in FIG. 4 in the form of a shower; FIG. 5 is a longitudinal sectional view showing a state in which the content liquid is straightly discharged from the container shown in FIG. 4;

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

As shown in FIG. 1, a quantitative dispensing cap 1 (hereinafter also referred to as cap 1) according to the first embodiment of the present invention constitutes a container 3 by being attached to a mouth portion 2a of a container body 2. ing.

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 tubular 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, for example, blow molding.

In the present embodiment, the vertical direction refers to a state in which 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 trunk portion 2b to the mouth portion 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 body member 5 , an additional member 6 , an outer member 7 and an upper lid 8 . An inner member 9 is composed of the inner main body member 5 and the additional member 6 . The metering tap 4 is inserted inside the inner member 9 . The outer member 7 and the upper lid 8 form an integrally formed outer cap member 10 . More specifically, the top lid 8 is rotatably connected to the outer member 7 via hinges 11 . Note that the outer member 7 and the upper lid 8 may be formed separately. The additional member 6 is fitted into the inner body member 5, the inner body member 5 is held in the opening 2a, and the outer member 7 is held in the opening 2a so as to be rotatable along the circumferential direction. Each of the metering plug 4, the inner body member 5, the additional member 6, and the outer cap member 10 is made of synthetic resin, for example, and is formed by, for example, injection molding.

The additional member 6 has a shower outlet 12 which is formed of a plurality of holes (for example, four holes 12a) arranged eccentrically with respect to the mouth portion 2a. The outer member 7 has a single straight outlet 13 having a larger diameter than the shower outlet 12 . The inner member 9 is provided with an inner flow path R1 that communicates the accommodation space S and the shower outlet 12, and the inner member 9 (a ceiling wall 6b described later) and the outer member 7 (an upper wall 7d described later). Between them, an outer flow path R2 is provided for communicating the shower outlet 12 and the straight outlet 13 with each other.

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 9 has a cylindrical holding tube 9a and a holding tube end wall 9b extending radially inward from the lower end of the holding tube 9a, that is, the end on the initial position side, which will be described later. The holding tube 9a is arranged concentrically with the center axis O of the mouth portion 2a, but the present invention is not limited to this.

The holding tube 9a holds the metering plug 4 radially inward so as to be movable in the axial direction, that is, in the vertical direction, between the initial position where the inner flow path R1 is opened and the closed position where the inner flow path R1 is closed. ing. 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 initial position is the lower end position of the holding cylinder 9a, and the closed position is the upper end position of the holding cylinder 9a.

The inner member 9 also has two inlets 9c for introducing the content liquid L from the storage space S radially inwardly of the holding tube 9a so as to move the metering plug 4 from the initial position to the closed position. The two introduction ports 9c are arranged across the axis of the holding cylinder 9a. Each introduction port 9c is formed across the holding tube 9a and the holding tube end wall 9b. However, the position where each introduction port 9c is provided is not limited to this, and for example, each introduction port 9c may be formed only in the lower end portion of the holding tube 9a. Note that the number of introduction ports 9c is not limited to two, and can be designed as appropriate. Further, the inner member 9 may be configured without the holding tube end wall 9b.

The holding tube 9a has two through holes 9d positioned between the initial position and the closed position, and one communication hole 9e positioned at the closed position. That is, the inner flow path R1 includes two through holes 9d and one communication hole 9e. The number of through holes 9d and communication holes 9e can be changed as appropriate.

The holding tube 9 a is composed of a lower holding tube 5 a provided on the inner main body member 5 and an upper holding tube 6 a provided on the additional member 6 . That is, the inner main body member 5 has a lower holding tube 5a that is one end side portion of the holding tube 9a on the initial position side, and the additional member 6 has an upper holding tube 6a that is the other end side portion of the holding tube 9a. are doing. Each through hole 9d is provided at the upper end portion of the lower holding tube 5a, but the positions of the through holes 9d can be appropriately designed.

From the upper end of the lower holding cylinder 5a, the outer cylinder 5b extends upward in a stepped manner. A flange wall 5c extends radially outward from the upper end of the outer cylinder 5b. Between the top wall 6b provided on the additional member 6 and the flange wall 5c, a gap G is formed which constitutes the portion between the communication port 9e and the shower discharge port 12 in the inner flow path R1. The gap G is formed by a step portion 5d that is offset upward toward the radially outer side provided in the flange wall 5c.

An engagement tube 5e extends downward from the outer peripheral edge of the flange wall 5c. The engagement tube 5e is attached to the outer peripheral surface of the mouth portion 2a via an axial locking portion 5f and a circumferential locking portion 5g. The axial locking portion 5f is composed of annular projections that engage with each other, but is not limited to this. The circumferential locking portion 5g is composed of a group of projections on the mouth portion 2a side and projections on the engagement tube 5e side that engage with each other, but the configuration is not limited to this. In this manner, the inner body member 5 is fixedly held in the mouth portion 2a.

A sealing tube 5h extends downward from a portion of the flange wall 5c between the engaging tube 5e and the stepped portion 5d, and is in close contact with the inner peripheral surface of the mouth portion 2a. In addition, it is good also as a structure which does not provide the seal cylinder 5h. A fitting tube 5i extends upward from a portion of the flange wall 5c radially outside the stepped portion 5d. On the inner peripheral surface of the fitting cylinder 5i, the additional member 6 is mounted in a state where the lower surface of the outer peripheral edge portion of the top wall 6b of the additional member 6 is in contact with the upper surface of the portion of the flange wall 5c radially outside the stepped portion 5d. The outer peripheral edge of the top wall 6b of is fitted.

The top wall 6b of the additional member 6 is connected to the upper end of the upper holding tube 6a. The top wall 6b also has a shower outlet 12 located radially outside the upper holding cylinder 6a. Between the lower surface of the ceiling wall 6b and the portion of the upper surface of the flange wall 5c radially inward of the stepped portion 5d, there is provided a locking portion 6c for circumferentially locking the ceiling wall 6b to the flange wall 5c. is provided. The locking portion 6c is composed of, for example, two protrusions and one protrusion fitted therebetween. In this manner, the additional member 6 is held fixedly on the inner body member 5 .

Both the outer peripheral surface of the mouth portion 2a and the outer peripheral surface of the engaging tube 5e of the inner main body member 5 are provided with cylindrical members provided on the outer member 7 via the upper locking portion 7a and the lower locking portion 7b. An outer peripheral wall 7c is attached so as to be rotatable about the central axis O along the circumferential direction. Note that the outer peripheral wall 7c may have a cylindrical shape other than a cylindrical shape. The upper engaging portion 7a axially engages the outer peripheral wall 7c with respect to the engaging tube 5e. Although the upper engaging portion 7a is configured by annular protrusions that engage with each other, the present invention is not limited to this. The lower engaging portion 7b axially engages the outer peripheral wall 7c with respect to the outer peripheral surface of the mouth portion 2a. The lower engaging portion 7b is composed of a group of protrusions on the mouth portion 2a side and an annular protrusion on the outer peripheral wall 7c side that engage with each other, but the present invention is not limited to this. Thus, the outer member 7 is held by the mouth portion 2a so as to be rotatable about the central axis O with respect to the inner member 9 along the circumferential direction.

An upper wall 7d extends radially inward from the upper end of the outer peripheral wall 7c. The upper wall 7d is connected to the lower end portion of the outer peripheral surface of the discharge cylinder 7e that forms the straight discharge port 13 radially inward. A sealing stepped portion 7f is provided on the outer peripheral edge of the lower surface of the upper wall 7d so as to be in close contact with the outer peripheral surface of the fitting tube 5i.

As shown in FIG. 3, the outer member 7 has a shower discharge position where the straight discharge port 13 is aligned with the shower discharge port 12 so that the content liquid L can be discharged from the shower discharge port 12 in a shower shape, and a shower discharge position shown in FIG. As shown, the straight discharge port 13 is displaced from the shower discharge port 12, so that the content liquid L is directed from the shower discharge port 12 toward the straight discharge port 13 through the outer flow path R2 between the outer member 7 and the inner member 9. By flowing, it is possible to rotate along the circumferential direction around the axis of the mouth portion 2a between the straight ejection position at which the content liquid L can be ejected straight from the straight ejection port 13 .

As shown in FIG. 1, between the portion of the flange wall 5c radially outside the fitting tube 5i and the portion of the upper wall 7d radially outside the seal stepped portion 7f, there is a shower jet from the straight discharge position. A stopper 7g is provided to stop the rotation of the outer member 7 with respect to the inner member 9 both when switching to the ejection position and when switching from the shower ejection position to the straight ejection position. The stopper 7g is composed of a projection on the side of the flange wall 5c and a projection on the side of the upper wall 7d provided at two locations across the central axis O, but the configuration is not limited to this. In this embodiment, when the outer member 7 is rotated 180 degrees with respect to the inner member 9 for switching between the shower discharge position and the straight discharge position, the rotation is stopped by the stopper 7g. It has become. Note that the rotation angle is not limited to 180°.

The upper lid 8 has a cylindrical peripheral wall 8a and a top wall 8b extending radially inward from the upper end of the peripheral wall 8a. The peripheral wall 8 a is connected to the outer peripheral wall 7 c of the outer member 7 via hinges 11 . The hinge 11 is arranged on the side opposite to the straight discharge port 13 with respect to the central axis O. As shown in FIG. A tubular seal member 8c extends downward from the top wall 8b and is in close contact with the inner peripheral surface of the discharge tube 7e. A support cylinder 8d concentric with the seal body 8c extends downward from a radially outer portion of the seal body 8c in the top wall 8b. The lower end of the support cylinder 8d abuts the upper wall 7d of the outer member 7. As shown in FIG. The upper lid 8 can open and close the straight discharge port 13 by rotating via the hinge 11 . By closing the upper lid 8, the peripheral wall 8a of the upper lid 8 and the upper wall 7d of the outer member 7 are detachably fitted through the fitting portion 8e. The fitting portion 8e is composed of an annular groove on the side of the peripheral wall 8a and an annular projection on the side of the upper wall 7d that are engaged with each other, but the configuration is not limited to this.

When using the container 3, the container 3 is tilted from the state in which the upper lid 8 is opened and the outer member 7 is in the straight discharge position as shown in FIG. 2, and the body portion 2b is squeezed. As indicated by the arrows, the liquid flows from the housing space S through the inner flow path R1, the shower outlet 12, and the outer flow path R2, and is discharged straight from the straight outlet 13. As shown in FIG. At this time, the content liquid L is introduced from the housing space S through the introduction ports 9c into the holding cylinder 9a in the radial direction, and receives the liquid pressure, thereby causing the metering plug 4 to move toward the position indicated by the white arrow in FIG. As shown, it moves from an initial position that opens the inner flow path R1 to a closed position that closes the inner flow path R1. Therefore, the content liquid L can be discharged only while the metering plug 4 moves from the initial position to the closed position. It can be discharged in a shape.

Moreover, the container 3 can discharge the content liquid L straightly or in the form of a shower, as required. That is, when the upper lid 8 is opened and the outer member 7 is in the shower discharge position, the container 3 is tilted as shown in FIG. 3 and the body portion 2b is squeezed. , flows from the housing space S through the inner flow path R1, and is discharged from the shower outlet 12 in the form of a shower. Also, at this time, the content liquid L is introduced from the storage space S through the introduction ports 9c into the holding tube 9a in the radial direction, and the metering plug 4 moves toward the inner flow path R1 as indicated by the white arrow in FIG. from the initial position to open the inner flow path R1 to the closed position to close the inner flow path R1. Therefore, the content liquid L can be discharged only while the metering plug 4 moves from the initial position to the closed position. It can be discharged in a shape. The shape and size of the straight discharge port 13 are adjusted to the shape and size of the shower discharge port 12 so that the content liquid L discharged from the shower discharge port 12 in a shower shape can pass straight through the straight discharge port 13. It can be designed accordingly.

As described above, in the metered discharge cap 1 of the first embodiment of the present invention, the outer member 7 extends along the circumferential direction around the axis of the mouth portion 2a between the shower discharge position and the straight discharge position. configured to be rotatable. However, the cap 1 is not limited to this. For example, like the metered discharge cap 1 of the second embodiment of the invention shown in FIGS. It may be configured to be rotatable along the threaded portion 14 around the axial center of the mouth portion 2a between. 4 to 7, elements corresponding to those shown in FIGS. 1 to 3 are denoted by the same reference numerals.

As shown in FIG. 4, in the second embodiment, the outer peripheral wall 7c of the outer member 7 is attached to the outer peripheral surface of the mouth portion 2a via the threaded portion 14. As shown in FIG. The shower discharge position is set at the stop position in the screwing direction of the threaded portion 14 . A screwing direction stopper 15 is provided between the outer member 7 and the inner member 9 to stop the outer member 7 in the screwing direction of the screw portion 14 . The screwing direction stopper 15 is composed of the upper surface of the fitting tube 5i and the lower surface of the upper wall 7d that abuts thereon, but the configuration is not limited to this. Further, as shown in FIG. 5, the straight discharge position is set at the stop position of the threaded portion 14 in the unthreading direction. A stopper 16 is provided between the outer member 7 and the inner member 9 to stop the outer member 7 in the unthreading direction of the threaded portion 14 . The screwing-out direction stopper 16 is composed of an annular protrusion provided on the inner peripheral surface of the outer peripheral wall 7c and an annular protrusion provided on the outer peripheral surface of the engaging cylinder 5e that abuts on the annular protrusion. Not exclusively. In this embodiment, when the outer member 7 is rotated by half, that is, by 180° with respect to the inner member 9 in order to switch between the shower discharge position and the straight discharge position, the rotation of the stopper 15 or the screw It is stopped by a de-direction stopper 16 . Note that the rotation angle is not limited to 180°. Further, the fitting cylinder 5i and the seal stepped portion 7f are designed to be in close contact with each other throughout the relative movement in the vertical direction via the threaded portion 14. As shown in FIG.

In addition, in this embodiment, the upper lid 8 does not have the support tube 8d. Also, the discharge cylinder 7e extends upwards more than in the case of the first embodiment. Other configurations are the same as those of the first embodiment described above.

According to the cap 1 of the present embodiment, the container 3 is tilted as shown in FIG. 6 from the state where the upper lid 8 is opened and the outer member 7 is at the shower discharge position, and the body portion 2b is squeezed, whereby a fixed amount of water can be discharged. The content liquid L can be discharged like a shower. Further, from the state where the upper lid 8 is opened and the outer member 7 is in the straight discharge position, the container 3 is tilted as shown in FIG. can do. Here, in the present embodiment, since the shower discharge position is set at the stop position in the screwing direction of the threaded portion 14, the axial positions of the straight discharge port 13 and the shower discharge port 12 can be made close to each other at the shower discharge position. As a result, the content liquid L discharged like a shower can easily pass straight through the straight discharge port 13 . Therefore, the degree of freedom in designing the shape and size of the straight discharge port 13 can be increased. However, the cap 1 of the present embodiment is not limited to such a configuration, and the shower discharge position is set to the stop position in the screwing direction of the threaded portion 14, and the straight discharge position is set to the stop position in the screwing direction of the threaded portion 14. A set configuration may be used.

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

For example, in the above-described embodiment, the body portion 2b is configured to be squeezable, but the present invention is not limited to this, and may be configured to discharge the content liquid L by its own weight. Further, the holding cylinder 9a may have a tubular shape other than a cylindrical shape, and the shape of the holding cylinder 9a can be appropriately changed in accordance with the shape of the metering plug 4. FIG. Also, the shape of the upper lid 8 can be changed as appropriate. 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 metered stop 5 inner body member 5a lower holding cylinder 5b outer cylinder 5c flange wall 5d stepped portion 5e engaging cylinder 5f axial locking portion 5g circumferential locking Part 5h Seal cylinder 5i Fitting cylinder 6 Additional member 6a Upper holding cylinder 6b Ceiling wall 6c Locking part 7 Outer member 7a Upper locking part 7b Lower locking part 7c Peripheral wall 7d Upper wall 7e Discharge cylinder 7f Seal stepped part 7g Stopper 8 Upper lid 8a Peripheral wall 8b Top wall 8c Seal body 8d Support tube 8e Fitting portion 9 Inner member 9a Holding tube 9b Holding tube end wall 9c Introduction port 9d Through port 9e Communication port 10 Outer cap member 11 Hinge 12 Shower discharge port 13 Straight Discharge port 14 Threaded portion 15 Threaded direction stopper 16 Threaded direction stopper L Content liquid S Storage space O Center axis line R1 Inner flow channel R2 Outer flow channel G Gap

Claims (2)

An inner member that is held by the mouth of the container body and has a shower discharge port that is eccentrically arranged with respect to the mouth, and a straight discharge port that has a single hole with a larger diameter than the shower discharge port. an outer member comprising
The inner member includes an inner flow passage that communicates the storage space of the content liquid in the container body and the shower discharge port, an initial position that opens the inner flow passage, and a closure that closes the inner flow passage. a retaining cylinder axially movably retained radially inwardly between positions; and an introduction port for introducing directionally inward,
The outer member has a shower discharge position where the straight discharge port is aligned with the shower discharge port so that the content liquid can be discharged from the shower discharge port in a shower-like manner, and the straight discharge port extends from the shower discharge port. By shifting, the content liquid flows from the shower outlet toward the straight outlet through the outer channel between the outer member and the inner member, thereby allowing the content liquid to flow straight from the straight outlet. A fixed quantity discharge cap, characterized in that it is rotatable about the axis of said mouth portion between a straight discharge position that allows discharge to be made in a straight direction. The inner member comprises: an inner member main body held by the mouth portion and having one end side portion of the holding cylinder on the initial position side; 2. The metered discharge cap according to claim 1, comprising an additional member having a portion on the other end side.

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