JP2000014572A - Inner cap of liquid container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the inner cap of a liquid container which never obstructs pouring out of a liquid in a container main body and which facilitates washing of a liquid path in spite of a limited space inside the inner cap. SOLUTION: This inner cap 10 of the liquid container 1 is provided with a valve 24 energizing a flowing-out portion 13a at the lower end of the liquid path 13 formed at a cap 11 in a closing direction to clog the flowing-out port in the state of being openable and closable, a flap 30 clogging a pouring port 13b at the upper end of the liquid path and a switch 39 opening and closing the pouring port and to opening and closing the valve by rotating the flap with a rotary shaft 32 as a supporting point by sliding in a horizontal direction. In this case, the engaging part (engaging plate 34) with the switch is provided at the upper part of the rotary shaft of the flap and a cam part 36 opening and closing the flowing-out port by moving the valve is provided at a lower part. By sliding the switch in a direction opposite to the liquid path, the flap is rotated to open the pouring port and the valve is moved to open the flowing- out port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an inner plug of a liquid container.

[0002]

2. Description of the Related Art As a liquid container of this type, for example, Japanese Utility Model Publication No. 4-28535 discloses a valve body for opening and closing an outlet, and a spout communicating with the outlet at an upper part of the container body. In some cases, an inner plug having a flap and a switch for opening the spout by rotating the flap by sliding horizontally toward the spout is attached.

[0003] The inner plug is provided with a cam portion for pushing the valve body downward on the switch, and an engaging portion for fitting with a predetermined play to the flap is provided at the same height as the cam portion. I have. Then, by sliding the switch to the spout side, the cam portion of the switch pushes the valve body downward to open the outlet at the lower end of the liquid passage, and by engagement of the switch with the flap,
By rotating the flap, the spout at the upper end of the liquid passage is opened so that the liquid in the container body can be poured out.

On the other hand, when closing the open inner plug,
By sliding the switch in a direction away from the spout opposite to the above, the pressing of the valve body by the cam portion is released. Then, the valve body is closed by the spring force of the spring disposed to urge the valve body upward, and the flap is rotated to close the spout.

[0005]

However, in the inner plug of the liquid container, when the switch is operated to open the outlet and the spout, the engagement portion between the switch and the flap is located on the upstream side of the spout. , There is a disadvantage that the liquid in the container body is obstructed when the liquid is poured out. Therefore, in the limited narrow space inside the inner plug, it is impossible to increase the amount of advance of the engaging portion and increase the amount of rotation of the flap, and the flap is opened in the open state due to play of the engaging portion. Because it cannot be held in a stable immovable state,
The liquid flowing out of the spout tends to interfere with the flap, disturbing the direction of the pouring, and the pouring workability is not preferable. Further, as described above, since the rotation amount of the flap is small and the engaging portion is advanced, there is an inconvenience that it is difficult to clean the inside of the inner plug (liquid passage).

Therefore, in the present invention, the inside of the container body is not hindered when the liquid is poured out, and the inside of the liquid passage is also easily cleaned, even though the inside of the inside stopper is limited. It is an object of the present invention to provide a simple liquid container inner plug.

[0007]

In order to solve the above problems, an inner plug of a liquid container according to the present invention is urged in a direction to close an outlet at a lower end of a liquid passage formed in a stopper to open and close the outlet. A valve body that closes as much as possible, a flap that closes and closes the spout at the upper end of the liquid passage, and a horizontal slide to open and close the spout by rotating the flap about a rotation axis as a fulcrum. And a switch for opening and closing the valve element, and an inner plug of the liquid container provided with an engagement portion with the switch at an upper part of a rotation axis of the flap, and moving the valve element at a lower part. A cam portion for opening the outlet is provided, and the switch is slid in a direction opposite to the liquid passage to rotate the flap, thereby opening the inlet and moving the valve body to open the outlet. With That.

According to the inner stopper of the liquid container, when the switch is slid in the direction opposite to the liquid passage in the closed state, the flap engaged with the switch is rotated, thereby opening the spout at the upper end of the liquid passage. At the same time as opening, the cam portion provided on the flap moves the valve body in a direction to open the outflow port, so that the liquid in the container body of the liquid container can be poured out. As described above, since the switch is slid in the direction opposite to the liquid passage (spout), an engagement portion between the switch and the flap is prevented from being obstructed when the liquid in the container body is poured out. can do. On the other hand, in this open state,
When the switch is slid toward the liquid passage in the opposite direction to the above, the flap pivots in the opposite direction to release the locked state between the cam portion and the valve element. This allows
The valve body closes the outlet with the spring force of the spring. Therefore, at the same time as the switch slides back to its original position,
The spout is closed by the flap, and the outlet is closed by the valve body.

[0009] The inner plug is arranged such that the tip of the flap is positioned substantially behind the wall of the liquid passage when the spout is opened, and when the liquid is discharged, the liquid comes into contact with the flap to discharge the liquid. It is preferable to improve the workability at the time of pouring by preventing the direction from changing or scattering.

In addition, the shaft portion of the valve body is provided at an eccentric position away from the liquid passage in the plug so that a large area occupied by the liquid passage can be secured within a limited narrow inner plug. preferable.

Further, it is preferable that when the flap is opened, an end of the switch projects from an outer peripheral portion of the plug. With this configuration, when the lid serving as the cup provided in the liquid container is mounted without performing the closing operation of the outlet and the inlet of the liquid passage, the inner surface of the lid interferes with the protruding portion of the switch. Then, by pressing in the closing direction, the outlet and the spout of the liquid passage can be closed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show the inner plug 10 of the present invention.
1 shows a liquid container 1 to which is attached. The liquid container 1 includes a container body 2 composed of an inner bottle 3 and an outer bottle 4 having a vacuum double structure. The inner stopper 10 is detachably attached to an upper opening of the container body 2, and a cup is provided on an upper portion. Lid 4 for dual use
4 is detachably attached. Since the lid 44 is a well-known one formed by two-color molding, a detailed description thereof will be omitted.

The inner plug 10 generally comprises a plug 11, a plug ring 19, a plug cap 21, a valve 24, a flap 30, and a switch 39.

The plug 11 is mounted on the opening of the container body 2 and has a substantially cylindrical shape with a bottom. A partition wall having a U-shaped cross section is provided on the inner front side (the left side in FIG. 1). 12
A liquid passage 13 having upper and lower openings is provided. In the bottom of the plug 11, a through hole 14 is provided at a position away from the center to the rear (to the right in FIG. 1), through which the shaft 26 of the valve 24 is inserted. A cylindrical rib 15 protruding upward is provided at an edge of the through hole 14, and a guide groove 16 for guiding the valve body 24 so as not to rotate is provided in an inner surface of the rib 15 in a vertical direction. . A support portion 1 for positioning and supporting a rotating shaft 32 of a flap 30 described below from below is provided in the plug 11.
7 are provided. The support center of the support portion 17 is made to coincide with the axial center of the through hole 14 in the front-rear direction.
The cam portion 36 of the flap 30 and the shaft portion 2 of the valve body 24 to be described later
6 is located at the rear side of the rotating shaft 32. Further, an annular packing 18 is attached to the lower end of the plug 11 by a well-known attachment structure such as forcible fitting.

The stopper ring 19 has a cylindrical shape having a diameter larger than that of the stopper 11 and is disposed outside the stopper 11. The upper end of the stopper ring 19 is forcibly fitted to the upper end of the stopper 11 by a well-known mounting structure. By being attached, it is mounted on the upper part of the container body 2 together with the stopper 11. This stopper ring 19
Is provided with a screw portion 20 on an inner peripheral portion thereof, which is screwed and attached to the container body 2.

The stopper cap 21 is fitted and attached to the upper end of the stopper 11, and is notched from the front side (the inlet 13 b side) of the upper end of the liquid passage 13 formed in the stopper 11 in the radial direction. Is formed and the switch 3
A groove 22 for attaching the slidable member 9 in a horizontal direction is formed. At a position facing the support portion 17 of the plug 11, a support concave portion 23 for positioning the upper portion of the rotating shaft 32 of the flap 30 is provided.

The valve body 24 is pressed against the packing 18 attached to the plug body 11 so as to press the liquid passage 13.
A valve body 25 having a substantially conical cylindrical shape, and a shaft portion 26 provided at an eccentric position away from the liquid passage 13 so as to correspond to the through hole 14. I have. For this reason, when the valve body 24 is rotated by 180 ° about the shaft portion 26 in a state where the inner plug 10 is assembled, as shown in FIG. 11 protrudes from the outer peripheral portion. At the lower part of the shaft portion 26, there is provided a convex portion 27 which is slidably inserted into the guide groove 16. This protrusion 27
When the inner plug 10 is washed, the inner plug 10 serves as a holding unit that holds a state in which a predetermined gap S is provided between the valve body 25 and the bottom of the plug 11. An inner cylinder 28 for receiving an upper part of a spring 29 is attached to the shaft portion 26, and the valve body 25 is attached to the packing 18 by mounting the spring 29 between the inner cylinder 28 and the plug 11. It is configured to be urged in the closing direction to be pressed.

The flap 30 has a rotating shaft 32 rotatably positioned on both sides of the substrate portion 31 by the supporting portion 17 and the supporting recess 23. At the front end of the substrate part 31, a spout closing part 33 projecting in a substantially L-shape is provided to close the spout 13b at the upper end of the liquid passage 13 of the plug body 11. An engaging plate 3 is provided on an upper portion of the substrate portion 31 as an engaging portion with a switch 39 described later.
4 are provided. In FIG. 1, reference numeral 35 denotes a reinforcing rib. Further, a plate-like cam portion 36 for pressing the shaft portion 26 of the valve body 24 downward is provided at a lower portion of the substrate portion 31, and is located on both sides of an upper end of the shaft portion 26 on both sides of the cam portion 36. A guide plate 37 is provided. In the cam portion 36, on the right side in the figure, which is located at the lower portion in the rotating state,
A notch 36a is provided for engaging with the upper end of the shaft 26. In the present embodiment, as shown in FIG.
The top end of the spout closing portion 33 is positioned substantially rearward from the inner surface of the partition wall 12 of the liquid passage 13 in a state where the upper end of the opening is locked to the notch portion 36a.

The switch 39 is connected to the stopper cap 21.
Slidably mounted in the groove 22 and slid in the opposite direction (separation direction) from the liquid passage 13,
The flap 30 is rotated about a rotation shaft 32 as a fulcrum,
The spout 13b is opened. Specifically, the switch 39 includes a substrate unit 40 having a finger insertion concave portion 41 and a finger hook convex portion 42. A hook-shaped hook 43 protrudes from the front end 40a of the base plate 40, and the engaging plate 34 of the flap 30 is engaged with a predetermined play between the hook 43 and the front end 40a. I am trying to do it.

When the liquid inside the container body 2 is poured using the liquid container 1 to which the inner stopper 10 is applied, first, the finger of the switch 39 is pushed from the upper part of the inner stopper 10 with the lid 44 removed. A finger is inserted into the insertion concave portion 41, and the finger is hooked on the finger hooking convex portion 42, and the switch 39 is moved backward (the liquid passage 13).
To the opposite side).

Then, when the engaging plate 34 of the flap 30 engaged with the hook 43 of the switch 39 is pulled backward, the entire flap 30 is rotated clockwise in FIG. Then, the spout closing portion 33 separates from the spout 13b.

The rotation of the flap 30 causes the cam 36 formed on the flap 30 to press the shaft 26 of the valve body 24 downward. Thereby, the valve element 24 is
Due to the engagement between the projection 27 and the guide groove 16 of the plug 11 while resisting the spring force of the spring 29, the projection 27 moves in the axial direction without rotating in the circumferential direction.

As a result, as shown in FIG.
Is separated from the packing 18 attached to the plug 11, the outlet 13a at the lower end of the liquid passage 13 is opened, and the notch 36a formed in the cam portion 36 and the tip of the shaft portion 26 of the valve body 24 contact. By locking, the switch 39, the flap 30, and the valve body 24 are locked so as not to move, so that the liquid in the container body 2 can be poured out.

When the liquid in the container main body 2 is poured out, the container main body 2 is tilted so that the spout 13b side is at the lower part, so that the spouting is performed through the dedicated liquid passage 13 defined by the partition wall 12. Pour out the liquid from 13b.

Here, in the conventional inner plug, when the partition wall 12 is provided as in the present embodiment and a dedicated liquid passage is formed, the engaging portion advances to the liquid passage side. The area (cross-sectional area) cannot be increased, and as a result,
Since the outflow amount of the liquid is reduced, the partition wall 12 as in the present embodiment is not formed.

On the other hand, in the present embodiment, as described above, the switch 39 is slid in the direction opposite to the liquid passage 13, so that the switch 39 is occupied despite the small space of the inner plug 1. The partitioned liquid passage 13 having a large area (cross-sectional area) can be formed. In addition, in the present embodiment, the shaft portion 26 of the valve body 24 is provided at an eccentric position away from the liquid passage 13, so that the occupied area of the liquid passage can be further increased. Therefore, the liquid in the container body 2 can be poured out smoothly. Of course, the engaging portion between the flap 30 and the switch 39 does not obstruct the flow of the liquid.

In the open state, the flap 3
The zero-hole closing portion 33 is located substantially behind the extension line L of the partition wall 12 of the liquid passage 13. Further, the flap 30
By the engagement of the valve body 24 with the shaft portion 26, the valve body 24 is held in a stable and immovable state. Therefore, when the container body 2 is tilted and the liquid inside is poured out, the liquid flowing out does not touch the spout closing portion 33. As a result, the direction in which the liquid is poured out can be prevented from changing or scattering, and the liquid can be poured smoothly even with a small opening area such as a lid that also serves as a glass. In the present embodiment, in this open state, the finger catching convex portion 42 of the switch 39 protrudes from the side of the inner plug 10, but it is not always necessary to protrude. However, if the liquid passage 13 is configured to protrude, as described later, there is an advantage that the liquid passage 13 can be closed by attaching the lid 44 when the liquid passage 13 is forgotten to be closed.

On the other hand, when closing the outlet 13a and the inlet 13b of the liquid passage 13 from this open state, as shown in FIG. 2, the end of the switch 39 protruding from the outer periphery of the stopper ring 19 is pushed in. Then, the switch 39 is slid in the opposite direction (toward the liquid passage 13) to the original position.

Then, when the engaging plate 34 of the flap 30 is pressed by the distal end portion 40a of the switch 39, the flap 30 rotates counterclockwise in FIG. The locked state with the body 24 is released, and the spout 13 b is closed by the flap 30. As a result, the valve body 24 moves upward by the spring force of the spring 29 and presses against the packing 18 provided on the plug 11 to close the outlet 13a.

In the closed state of the valve body 24, the tip of the shaft portion 26 of the valve body 24 engages with the cam portion 36 of the flap 30 to the extent that there is no gap so as not to hinder the closed state of the outlet 13a. As a result, the flap 30
The inlet closing portion 33 is engaged with the lightly pressed contact from the substantially contact state, and can prevent the liquid remaining in the liquid passage 13 due to adhesion or the like from leaking from the inlet 13b.

Thereafter, the lid 44 is attached to the upper part of the container body 2. The lid 4 is placed on the upper part of the container body 2 without forgetting to close the outlet 13a and the inlet 13b of the liquid passage 13 by operating the switch 39.
The switch 3 with the inner surface of the lid 44 protruding even when the
9 and pressed in the closing direction, as described above, the locked state between the notch 36a of the cam portion 36 and the shaft portion 26 of the valve body 24 is released, and the closed state is formed as described above. Become.

When the inner plug 10 is removed from the container body 2 and the inner plug 10 is washed, as shown in FIG. The inside of the liquid passage 13 can be cleaned from the 13b side.

Further, in the present embodiment, the liquid passage 13 can be cleaned from the valve element 24 side by the convex portion 27 provided on the valve element 24 as follows. That is, first, the plug body 11 is held with one hand, the valve body 25 of the valve body 24 is gripped with the other hand, and the plug body 11 is pulled down in a direction to open the outlet 13a of the liquid passage 13 formed in the plug body 11. . At this time, the valve 39 may be pulled down after the switch 39 is operated to open the flap 30.

Then, the outlet 13a shown in FIG. 2 exceeds the normal open state, and further, as shown in FIG.
In a state where the convex portion 27 formed on the valve body 24 is separated from the guide groove 16 formed on the valve member 1, the valve body 24 is rotated by 180 ° about the shaft portion 26 as shown in FIG. 2
7 is engaged with the lower surface of the edge of the through hole 14. In order to maintain a state in which a predetermined gap S is provided between the valve body 25 and the bottom of the plug 11, it is possible to simply remove the protrusion 27 from the guide groove 16; Is
Preferably, it is rotated by 180 ° as described above.

As a result, the convex portion 27 and the edge of the through hole 14 of the plug 11 are pressed against each other by the spring force of the spring 29, so that the bottom of the plug 11 and the valve 24 are pressed.
Of the valve body 25 can be maintained.

In this separated state, a large gap is formed between the plug 11 and the valve 24, and the end of the valve body 25 projects from the outer periphery of the plug 11, so that the valve body 25 The open area on the top is large. Further, the side facing the protruding end is the liquid passage 13,
The outlet 13a at the lower end is widely open. Further, the flap 30 is in a state where it can be freely opened because the valve body 24 is moving in the opening direction against the spring force of the spring 29.

As a result, the user can open the spout closing portion 33 of the flap 30 and clean the inside of the liquid passage 13 from the spout 13b or from the widely opened outflow port 13a with good workability. Can be. The valve body 2 of the valve body 24
Since the upper surface of 5 is also open, it can be directly cleaned with a brush or the like.

When the cleaning is completed, the valve body 24 is again rotated by 180 ° about the shaft portion 26, and when the convex portion 27 coincides with the guide groove 16 of the plug 11, the guide force is applied by the spring force of the spring 29. While the convex portion 27 is guided by the groove 16, the valve body 24 rises unrotatably and returns to the normal position. Then, after the washing or when the liquid container 1 is used next time, the inner plug 10 is put on the opening of the container main body 2 and screwed to the container main body 2 with the screw portion 20 of the plug ring 19 to be attached.

On the other hand, when the user does not return the valve body 24 to the normal position as described above, and tries to attach the valve body 24 to the container body 2 in the state shown in FIG. The projecting end of the valve body 25 interferes with the inner surface of the opening of the container body 2. Then, from this state, when the user further screw-fastens and attaches the plug body 11 to the container body 2, conversely to the above,
The plug 11 rotates around the shaft portion 26 of the valve body 24. As a result, when the guide groove 16 of the plug 11 and the projection 27 of the valve body 24 coincide with each other, the spring 29 The valve body 24 returns to the normal position by the spring force of.

The inner plug 10 of the liquid container 1 of the present invention is not limited to the above configuration. For example, in the embodiment, the flap 30 is provided with the engagement plate 34,
The switch 39 is provided with a hooking portion 43 for hooking and engaging with the engagement plate 34 to engage the flap 30 and the switch 39. However, the engagement structure is not limited to the above, and a well-known structure is used. The structure is applicable. For example, as shown in FIG.
A pair of side plates 46 are provided with an engagement plate 45 formed with 5a and formed on the switch 39 with engagement projections 46a located on both sides of the engagement plate 45 and loosely inserted into the engagement holes 45a.
May be provided so that the flap 30 and the switch 39 are engaged with each other. Further, in this modification, an engaging pin that penetrates the engaging hole 45a and is attached to the pair of side plates 46 may be used in place of the engaging convex portion 46a. And a switch may be provided with an engagement plate. By doing so, the engagement state between the flap 30 and the switch 39 can be more reliably maintained.

Further, as shown in FIG.
A sealing member 38 made of rubber or the like is arranged below the spout closing portion 33 of the flap 30 and engages with the spout 13b by lightly pressing the spout closing portion 33 of the flap 30 from a state in which the spout closing portion 33 is almost in contact therewith. In the closed state, the liquid remaining in the liquid passage 13 from between the inlets 13b may be more reliably prevented from leaking.

[0042]

As is clear from the above description, in the inner stopper of the liquid container of the present invention, the cam portion for moving the valve body to the lower part of the flap closing the spout at the upper end of the liquid passage formed in the stopper body. Since the switch is slid in a direction opposite to the liquid passage to open the liquid passage, a large occupied area of the liquid passage can be secured even in a limited narrow space such as an inner plug. . In addition, by providing the shaft portion of the valve body at an eccentric position away from the liquid passage in the valve body, it is possible to further secure an occupied area of the liquid passage. As a result, the engagement portion between the flap and the switch is located on the upstream side of the spout, and does not hinder the liquid from being poured. In addition, it is possible to form a liquid passage occupying a large area occupied by the other part and the partition wall.

Therefore, according to the inner plug of the present invention, the stable outflow state of the liquid can be ensured, and the liquid passage can be easily cleaned. And
This configuration can be used as a liquid container that is convenient in use without impairing the pouring function by being applied to a liquid container (for example, 35 mm) having a small diameter of the container body.

When the spout is opened, the tip of the spout closing portion of the flap is positioned substantially behind the wall of the liquid passage so that the liquid touches the flap when the liquid is poured. It is possible to prevent the dispensing direction from changing or scattering, and to further improve the dispensing workability.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a liquid container to which an inner plug according to the present invention is attached.

FIG. 2 is a cross-sectional view showing a state where an inner plug is opened.

FIGS. 3A and 3B are cross-sectional views showing a state in which a valve body is separated.

FIG. 4 is a sectional view showing a modification of the inner plug.

FIG. 5 is a sectional view showing another modification.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Liquid container, 2 ... Container main body, 10 ... Inner stopper, 11 ... Plug body, 13 ... Liquid passage, 13a ... Outlet, 13b ... Spout, 1
8: packing, 19: stopper ring, 21: stopper cap, 2
4 ... valve element, 29 ... spring, 30 ... flap, 31 ...
Board part, 32 ... rotating shaft, 33 ... spout closing part, 34 ... engagement plate, 36 ... cam part, 36a ... notch part, 37 ... guide plate,
39 switch, 40 board part, 40a tip part, 41
... finger insertion concave part, 42 ... finger hook convex part, 43 ... hook part, 44
... the lid.

Claims (4)

[Claims] A valve body for urging the outlet at the lower end of the liquid passage formed in the plug to close the outlet so that the outlet can be opened and closed, and a spout at the upper end of the liquid passage to be opened and closed. An inner plug of a liquid container comprising a flap and a switch that opens and closes the spout by rotating the flap about a rotation axis by sliding the flap horizontally to open and close the valve body, An engagement portion with the switch is provided at an upper portion of the rotation shaft of the flap, and a cam portion is provided at a lower portion of the flap to move the valve body to open an outflow port, and slide the switch in a direction opposite to the liquid passage. The inner plug of a liquid container, wherein the flap is rotated to open the spout and move the valve body to open the outlet. 2. The inner plug of a liquid container according to claim 1, wherein the tip of the flap is positioned substantially behind the wall of the liquid passage when the spout is opened. 3. The valve body according to claim 1, wherein a shaft portion of the valve body is provided at an eccentric position away from a liquid passage in the plug body.
Or the inner plug of the liquid container according to claim 2. 4. The liquid according to claim 1, wherein when the flap is opened, an end of the switch protrudes from an outer peripheral portion of the plug. Inner stopper of the container.