JP5375932B2 - Beverage container closure - Google Patents

Description

  The present invention relates to a stopper for a beverage container.

Conventionally, a container main body for storing a liquid beverage as this type, and a straw hole which is attached to the container main body and through which a straw inserted into the container main body is formed at a position shifted to one side from the center. A base member and a lid that is pivotally supported with respect to a bearing portion provided at a position opposite to the straw hole of the base member and opens and closes an upper portion of the base member, The bearing portion of the base member has a through hole, and the lever disposed in the bearing portion is rotated to open and close the through hole, so that the bearing portion having the through hole is not located near the straw hole. Since the lever is provided, the limited effective area of the base member is not impaired, and the through hole can be reliably opened and closed by the lever. Beverage containers there is no risk of leakage or the like is known (e.g. Patent Document 1).

  Also, a bottomed cylindrical container body with an open upper end, a container with a closed upper end that is detachably mounted, and a straw suction cylinder protrudes from the storage recess provided at the top, and the top is used for decompression. The cap and the outside air introduction hole with a check valve and the upper end opening of the storage recess are covered and the suction tube is bent and stored in the storage recess, and then the storage recess is opened and the suction tube protrudes above the storage recess In the retracted state of the cover plate and the suction cylinder, the decompression hole and the outside air introduction hole are closed, and in the open state of the storage recess, only the decompression hole is closed. Between the states, both the decompression hole and the outside air introduction hole are configured to be opened, and when the suction cylinder is erected by sliding the cover plate, the suction cylinder is bent and the pressure is increased in the storage state in the storage recess. The inside of the container can be depressurized, There is no inconvenience to jump out occurs of the liquid from the stand the straw. Further, when the internal pressure is reduced due to the suction of the stored liquid, the external air can be corrected by introducing the external air through the external air introduction hole, and there is no possibility of causing a dent or the like of the container. In addition, since the decompression hole is closed when the stored liquid is sucked, and the outside air introduction hole is closed by the check valve, there is no possibility of causing a problem such as leakage of the liquid from the suction. Furthermore, there is also known a beverage container having convenience in use in which each decompression hole and outside air introduction hole can be automatically closed and opened by sliding a cover plate (for example, Patent Document 2).

JP 2004-345742 A JP 2009-132433 A

  The so-called straw container as in the prior art has a small opening due to its shape, so when opening the lid to drink the contents, unless the pressure of the internal air layer is released, the internal pressure will stab the contents deep The contents may jump out of the straw. For this reason, the straw container is generally devised to open the vent opening opened to the air layer and lower the internal pressure of the high-pressure container before opening the opening.

  Also, when opening the straw container, open the vent with the straw opening closed, and open the lid if air and contents remain inside the straw unless the vent is closed again after reducing the internal pressure. In some cases, the contents are replaced inside the straw, and the contents originally left inside the straw jump out from the opening.

Therefore, to eliminate scattering of the contents from the straw over the open mouth, when straw container opening operation, leaving vent straw opening closed state performs closed, open, closed operation, then straws A device has been devised to open the opening.

  Furthermore, when the contents are consumed with the straw opening opened and the vent closed, the air layer in the container is decompressed and the contents cannot be sucked out as expected. For this reason, when sucking out the contents, a check valve is provided so that air enters from the outside of the container when the inside of the container becomes a negative pressure and the pressure is reduced.

  And in the former prior art, the vent is closed, opened, and closed by turning the lever arranged separately from the lid, thereby eliminating the internal pressure release and the water and air replacement phenomenon in the straw, Although it has a function to eliminate the scattering of contents from the end of the straw, it is necessary to provide a separate intake valve for decompressing the container.

  In the latter prior art, a vent hole provided with a vent hole and a check valve is arranged in an adjacent position.

  In this way, in the straw container, parts such as a straw, a vent, and a check valve are necessary to completely eliminate the scattering of the contents from the tip of the straw, but such parts are relatively small and are lost. There was a risk that it was easy, difficult to clean, or increased in cost.

  Therefore, the problem to be solved by the present invention is to reduce the number of these parts, simplify the structure and reduce the cost, and improve the cleanability by losing small parts, loss of parts, and even accidental ingestion. Is to eliminate.

The beverage container plug according to the first aspect of the present invention is detachably provided at the container opening of the container main body, and is configured to hold and release the lid in a closed state with the stopper body pivotally supported by the lid that can be opened and closed. A stopper part that is engaged with the stopper body and is formed of an elastic material, and is detachably provided on the stopper body, and comes into contact with the container opening to attach the container body. A closure member for a beverage container, comprising: a locking member provided so as not to be opened even if the locking portion is operated when the lid is closed; A member is pivotally supported by the plug body, the closing member is engaged with a through- hole penetrating the plug body , and the closing member has a protrusion that engages with the through-hole, and air is passed through the protrusion. mouth is formed, situ this vents the locking member in the closed state Is not blocked, wherein the locking member is in the process to unlock the closed state of the lid vents has a structure that once vented blocked again, the plug body is of the through hole surrounding the intake hole is provided, although the intake hole is closed by a check valve provided in the closure member, wherein when the container main body becomes negative pressure deforms said check valve vent The vent is located below the rotation center axis of the lock member.

Plug of beverage containers of the invention of claim 2, in claim 1, wherein the suction hole communicates with the through hole is al provided.

Plug of beverage containers of the invention of claim 3, in claim 1, wherein said air intake holes are found provided separately from the through hole in the vicinity of the through hole.

According to a fourth aspect of the present invention, there is provided a beverage container plug according to any one of the first to third aspects, wherein the lock member is engaged with the lid in a state in which the lid is closed and is not always closed when the closed state is released. It is characterized by being biased by an elastic member.

  According to the first aspect of the present invention, the number of parts can be reduced as much as possible by forming the vent hole, the check valve and the like together with the closing member as one part.

According to the second aspect of the present invention, the number of parts can be reduced as much as possible by forming the vent hole, the check valve and the like together with the closing member as one part.

According to the third aspect of the present invention, the number of parts can be reduced as much as possible by forming the vent hole, the check valve and the like together with the closing member as one part.

According to the fourth aspect of the present invention, the lock member is given an elastic force in the releasing direction, so that the lock is unlikely to be closed first when the lid is closed, and the operation can be ensured.

It is sectional drawing of the lock member which shows Example 1 of this invention in a closed state. It is an expanded sectional view of the principal part of FIG. It is sectional drawing of the state in which the lock member is in the middle of opening and closing. It is sectional drawing of the lock member in an open state. It is a perspective view of the lock member in a closed state. It is a perspective view in the state where the lock member is in the middle of opening and closing. It is a perspective view of the lock member in an open state. It is a top view of the plug body . It is an exploded perspective view of the plug member body. It is a perspective view which shows Example 2 of this invention. It is sectional drawing which shows the reference example 1 of this invention. It is a perspective view of a lock member of a reference example 1 of the present invention in a closed state. It is a perspective view of the lock member of the reference example 1 of this invention in an open state. It is a disassembled perspective view which shows Example 3 of this invention.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

In FIGS. 1-9, FIG. 1 shows a portable beverage container according to the invention as a whole, a synthetic resin container body 2 of the metal vacuum insulation type, is deposited on top of the container opening 3 of the container body 2 And a base end side of a cup-shaped lid 7 is pivoted via a pair of left and right hinge shafts 6 at the upper part of one end side which is the rear side of the top part 5 of the plug body 4. The lid 7 can be freely opened and closed by being pivotally supported, and the lid 7 can be held in a closed state by a hook-shaped locking portion 8 provided on the opposite side of the hinge shaft 6, that is, the front side. ing. The locking portion 8 is integrally provided with an operation portion 9 that appears on the front side and is biased outward by a spring 9A, and the locking portion 8 is locked to the other end side of the lid 7. Part 10 is provided.

  The plug body 4 has a plug body 11 having a reverse bottomed cylindrical shape provided with a top 5 that covers the container opening 3 of the container body 2, and a female screw 12 formed on the inner peripheral surface of the plug body 11. Thus, it can be screwed onto a cylindrical male screw 13 provided on the upper outer peripheral surface of the container body 2. The top 5 is formed such that the lower surface 5D on one side is slightly higher than the lower surface 5D ′ on the other side provided with the locking portion 8 with a first mounting hole 14 to be described later as the center.

The bottom surface 5D, 5D ′ of the top portion 5 of the plug body 11 is formed in a disk shape in plan view with the same thickness throughout the entire area by an elastic member such as silicon rubber or elastomer resin. A closing member 15 is provided so as to loosely fit or fit. Thus, the closing member 15 has an appropriate hardness and can be slightly deformed by an elastic force when an external force is applied. Therefore, when the plug body 11 is attached to the container opening 3 of the container body 2. The top of the container opening 3 abuts against the lower surface of the peripheral side of the closing member 15 so that the container opening 3 can be reliably closed. The one-side upper surface 15U of the closing member 15 is opposed to the one-side lower surface 5D via a cavity 16 formed by a gap. On the other hand, the other upper surface 15U ′ of the closing member 15 is in close contact with the other lower surface 5D ′ .

  Further, the stopper body 11 is formed with a mouthpiece member mounting portion 17 having a first mounting hole 14 penetrating in the vertical direction at a substantially central position of the top portion 5. A second mounting hole 18 is formed at substantially the center of the closing member 15 on the coaxial line. And, for example, the lower part of the straw unit 19 provided with a tube-shaped drinking mouth part 19A formed of an elastic member such as silicon rubber or elastomer resin passes through the first attachment hole 14 and the second attachment hole 18. Thus, it can be attached to the drinking member attaching portion 17 and the closing member 15.

  Here, the entire straw unit 19 is formed of an elastic member such as silicon rubber or elastomer resin, and can be slightly deformed when a force is applied from the outside while having an appropriate hardness. The straw unit 19 as a drinking mouth member includes a drinking mouth portion 19A, a positioning portion 20 that protrudes from the periphery of the base side portion of the drinking mouth portion 19A to the outer periphery and can be locked to the lower surface 15D of the closing member 15, and the drinking mouth A mouthpiece member body 22 comprising a cylindrical inner diameter widened portion 21 that communicates with the base portion of the portion 19A and extends downward from the positioning portion 20; A cylindrical tube member 23 that almost reaches the bottom is detachably fitted.

  The first mounting hole 14 is erected in a cylindrical shape on the top portion 5, and inward in the middle of the vertical direction on the inner periphery of the first mounting hole 14, that is, toward the center line X, the first small hole The projection 24 is provided in a ring shape in a plan view, and the first small protrusion 24 is a first recess in a ring shape in a plan view provided on the outer periphery of the base of the drinking mouth portion 19A inserted into the first mounting hole 14. Further, a second small protrusion 26 having an annular shape in a plan view is provided on the outer periphery of the base of the first recess 25 slightly below, and the second small protrusion 26 is the first small protrusion 26. Are pressed against the inner periphery of the mounting hole 14 together with the positioning portion 20 to prevent the straw unit 19 from coming out and coming off from the plug body 11, and the top portion 5 from the outer peripheral side surface of the straw unit 19 is also prevented. The beverage is prevented from leaking to the upper surface.

  Further, a plate-like projection 27 is provided on the back surface of the lid 7 so as to face downward when the lid 7 is closed, and the drinking mouth portion 19A is bent into an S shape so that the inner space of the lid 7 can be obtained. The drinking mouth portion 19A can be accommodated, and the communication passage 28 of the drinking mouth portion 19A can be crushed to prevent the beverage from leaking out from the drinking mouth portion 19A.

  Further, a vertical through-hole 29 is formed in a circular shape in plan view in parallel with the center line X at a portion of the top portion 5 between the hinge portion 6 and the first mounting hole 14. An upward protrusion 30 to be engaged is integrally provided on the one side upper surface 15U of the closing member 15. The protrusion 30 is substantially cylindrical and penetrates the cavity 16 and the through hole 29 from the one side upper surface 15U. The upper portion 30U protrudes slightly from the upper surface 5U of the top portion 5, and the radius R of the upper portion 30U is larger than the radius S of the through hole 29, that is, the radius of the protrusion 30 as shown in FIG. R> S) and projecting upward in the shape of a truncated cone. Thereby, as shown in FIG. 2, the lower surface 30D of the upper portion 30U having a truncated cone shape can be brought into close contact with the upper surface 5U. A vertical ventilation hole 31 passes through the center line Y of the protrusion 30, and the inside of the container body 2 communicates with the outside air through the ventilation hole 31.

  The lock member 32 provided so as to be rotatable above the top portion 5 can be operated even when the locking portion 8 is operated when the lid 7 is closed to release the locking state with the locking receiving portion 10. 7 is provided so as not to be opened, and a vent 31U at the upper end of the vent 31 is provided so as to be openable and closable. The lock member 32 is provided on the top 5 so as to sandwich the upper part of the protrusion 30. A rotation center shaft 34 that is pivotably mounted horizontally on a bearing 33 that protrudes upward from the left and right, and a base end that is connected to the rotation center shaft 34 and is centered on the rotation center shaft 34 A plate-like main body 35 having a tip projecting in the radial direction and a penetrating portion 36 penetrating from one side to the other side serving as a locking portion for the lid 7 provided on the plate-like main body 35 are provided.

And between the pair of left and right bearings 33, in the circumferential direction on the peripheral surface of the rotation center shaft 34, the first convex portion that contacts the vent 31U of the vent 31 and closes the vent 31U when the lid 7 is closed. 38 and a second convex portion 39 that is provided adjacent to the first convex portion 38 in the circumferential direction and selectively closes the vent hole 31U when the lid 7 is opened by selectively contacting the vent hole 31U of the vent hole 31. When the lid 7 is opened in a non-contact state, the lid 7 is not selectively brought into contact with the vent 31U of the vent 31 provided between the first convex portion 38 and the second convex portion 39. It is also provided with an intermediate recess 40 that opens the vent 31U in the middle of closing. Reference numeral 37 in the figure is a non-intermediate concave portion provided on the opposite side to the concave portion 40 in the first convex portion 38, that is, provided on the plate-like main body 35 side. The convex part 38 and the second convex part 39 are recessed relatively. The first convex portion 38, the second convex portion 39 and the concave portion 40 close the vent 31U when the lock member 32 locks the vent 31U with the lid 7 closed, and the lock member 32 When the lock in the closed state of the lid 7 is rotated in the direction opposite to the straw unit 19 shown in FIG. 3 (arrow D) and the release operation is performed, the air vent 31U and the recess 40 of the lock member come to the lower part. At this time, a gap G is formed, and after the internal pressure is released therefrom, after opening and closing means for closing the vent hole 31U again is formed.

  Further, one end of the lid 7 is formed as a recessed portion 41 which is cut out, and the distal ends of the arm portions 42 provided on the left and right sides thereof are rotatably connected to the hinge shaft 6. When the lid 7 is closed, a first projecting portion 43 facing one side is provided at the center of the upper portion of the concave portion 41 in the left-right direction, and a second side facing one side is formed on both sides of the lower portion of the concave portion 41 in the left-right direction. Projection 44 is provided.

  When the lid 7 is closed, when viewed from the side, as shown in FIG. 1, when the hinge shaft 6 is the rotation center, the rotation locus of the first projection 43 and the rotation center shaft 34 are the rotation center. When the first projecting portion 43 and the penetrating portion 36 are locked at the point of intersection with the rotation trajectory of the penetrating portion 36, the lock member 32 is arranged like a stick to the lid 7, and the locking portion A lock member 32 is provided so as not to be in an open state even when the 8 is operated. At this time, the vent 31U is closed by the first convex portion 38.

  Further, as shown in FIGS. 3 and 6, the lock member 32 is rotated obliquely upward and the cover 7 is unlocked. At this time, the recess 31 is disposed in the vent 31U so that a gap G is formed. As a result, the vent 31 is opened, and an exhaust passage Z that passes through the gap G from the vent 31 is formed. Will be open to the atmosphere. If the lid 7 is half-opened in this state, the rotation locus of the second protrusion 44 when the hinge shaft 6 is the rotation center, and the rotation locus of the through portion 36 when the rotation center shaft 34 is the rotation center, When the second projecting portion 44 and the penetrating portion 36 are engaged with each other, the lock member 32 is arranged like a stick with respect to the half-open lid 7, and the lid 7 is locked in the half-open state. It is like that.

  Further, as shown in FIGS. 4 and 7, the lock member 32 is rotated toward one side. At this time, the vent 31U is closed again by the second convex portion 39.

  Then, when the operating portion 9 is pressed to release the locking state between the locking portion 8 and the locking receiving portion 10 and the lid 7 is opened, the drinking mouth portion 19A is bent and stored inside the lid 7. The drinking mouth portion 19A that has been made rises as indicated by the alternate long and short dash line.

  Further, when the internal pressure of the container main body 2 is atmospheric pressure or higher than the atmospheric pressure, the plug body 11 is closed, and when the internal pressure of the container main body 2 becomes negative pressure, the valve body is automatically opened to open the container. A check valve mechanism 45 that can intake air is provided inside the main body 2. The check valve mechanism 45 includes a valve seat 47 formed at the lower end of the intake hole 46 and a check valve 48 that can open and close the valve seat 47.

Vertically around the suction hole 46 through hole 29, i.e. the upper surface 5U side, provided so as to communicate with the hollow portion 16 side via the one side lower surface 5D, the other the one side direction of the through hole 29 in the embodiment each laterally, is formed in plan view narrow groove-shaped at even narrow than the radius of the through-hole 29 communicates with the through hole 29, width slightly larger in plan view in the intake hole 46 tip 46A is provided. The valve seat 47 is formed by the vicinity of the intake hole 46 including the tip 46A on the lower surface 5D on the one side around the lower end of the intake hole 46.

The check valve 48 is provided integrally with the protrusion 30 on the lower side of the protrusion 30 and on the upper side of the closing member 15 itself, and thus is integrated with the closing member 15, and the position thereof is disposed in the cavity portion 16. At the same time, the outer periphery of the protrusion 30 is integrally provided in a ring shape, that is, in an annular shape in plan view, so that the intake hole 46 can be closed by being applied to the valve seat 47 from below. The upper surface 48U of 48 closes the intake hole 46, and its outer edge 48A is in close contact with the lower surface 5D on one side. The lower surface 48D is formed with a gradually decreasing diameter around the vent hole 31. That is, the lower surface 48D is formed in a truncated cone shape that is upside down, and its radius T is larger than the center line Y to the tip 46A (T>R> S). The vertical length of the lower surface 30D of the protrusion 30 and the upper surface 48U of the check valve 48 is the same as the thickness of one side of the top 5, that is, the vertical length of the lower surface 5D and the upper surface 5U. For this reason, the top 5 is sandwiched between the protrusion 30 and the check valve 48. As a result, the blocking member 15 having the protrusion 30 and the check valve 48 integrally provided is prevented from falling out with respect to the top 5 side. Has been made. In the embodiment, as shown in FIG. 2, when the upper surface 48U is centered on the center line Y, only the outer side of the upper surface 48U can contact the valve seat 47 in an annular shape in plan view. The center line Y side is gradually formed downward and formed into a letter-shaped recess 48V.

  Further, a communication hole 49 is formed in the closing member 15 as a communication path for communicating the cavity 16 and the inside of the container body 2 so that the intake hole 46 and the container body 2 can communicate with each other. In the embodiment, the communication hole 49 is provided in the vertical direction so as to face one side of the outer edge 48A. In addition, the width of the tip of the communication hole 49 is slightly larger in plan view.

  Next, the operation of the above configuration will be described. After a beverage (not shown) is accommodated in the container body 2 from the container opening 3, the stopper body 11 is attached to the container opening 3.

  As shown in FIGS. 1 and 5, when the lid 7 is closed, the locking portion 8 is locked to the locking receiving portion 10 and the lock member 32 is locked to the lid 7. Therefore, even if the operating portion 9 is pressed to release the locking state between the locking portion 8 and the locking receiving portion 10, the lid 7 cannot be opened because the lock member 32 is locked to the lid 7. .

  In this state, the vent 31U of the vent 31 is closed by the first convex portion 38, and when the container body 2 contains tea or hot water at the time of milk preparation or when the container opening 3 is plugged. When the main body 11 is mounted, the check valve 48 contacts the valve seat 47 even when the internal pressure of the container main body 2 becomes equal to or higher than the atmospheric pressure due to the pressure from when the closing member 15 contacts the container opening 3 until it is crushed. As a result, the check valve mechanism 45 is closed. As a result, the inside of the container body 2 is kept sealed and kept warm.

  Next, as shown in FIGS. 3 and 6, first, the lock member 32 is rotated obliquely upward on one side about the rotation center shaft 34. As the locking member 32 rotates, the recess 40 faces the upper opening of the vent hole, so that a gap G is formed and the vent 31U is opened to the atmosphere by the air exhaust path Z. For this reason, since the inside of the container main body 2 is opened to the atmosphere via the vent hole and the inside is at atmospheric pressure, it is possible to prevent the beverage from jumping out from the tip of the straw.

  Next, as shown in FIGS. 4 and 7, the lock member 32 is further horizontally rotated to one side around the rotation center shaft 34. With the rotation of the lock member 32, the second convex portion 39 faces the vent 31U of the vent so that the vent 31U is closed. For this reason, the inside of the container body 2 is kept in a sealed state by maintaining the atmospheric pressure, so that even if a bubble and a beverage are filled inside the straw, the air is replaced by the pressure inside the straw when the lid is opened. In addition, there is no risk of the beverage inside the straw jumping out from the tip, and even if the beverage container is tilted carelessly while drinking the beverage, there is no risk of the beverage leaking.

  The lid 7 is opened by releasing the locking state between the locking portion 8 and the locking receiving portion 10 by pressing the operation portion 9. When the lid 7 is opened in this way, the drinking mouth portion 19A that has been pressed by the plate-like projection 27 rises due to the elastic force. By drinking and sucking the mouth part 19A, the beverage can suck up the cylindrical member 23, the communication path 28, and the mouth part 19A.

  If the beverage inside the container body 2 decreases in this way, the inside of the container body 2 becomes negative pressure, and the suction force of the mouth must be increased. When the negative pressure is reached, the check valve 48 is drawn toward the cavity 16 side on the negative pressure side via the communication hole 49 and is separated from the valve seat 47. At this time, the outer periphery of the check valve 48 is thin so as to be easily deformed. When the check valve 48 is opened in this way, outside air is introduced from the intake hole 46 into the cavity 16, the communication hole 49, and further inside the container body 2. As a result, the inside of the container main body 2 can continue to drink with a normal mouth suction force that is atmospheric pressure.

  In order to wash after drinking and using the beverage in this way, the plug body 11 is removed from the container body 2, and the closure member 15 is removed together with the check valve 48 from the plug body 11. Further, the straw unit 19 is removed from the plug body 11 and washed. After the cleaning, the stopper body 15 and the straw unit 19 that are integral with the check valve 48 are again attached to the stopper body 11 for use.

  As described above, in the above-described embodiment, the closing member 15 is engaged with and attached to the through hole 29 that penetrates the plug body 11, and the vent hole 31 is formed in the projection 30 that is engaged with the through hole 29. The vent 31 is closed by the first convex portion 38 when the locking member 32 is moved in the closed state, and is responsive to the rotation when the locking member 32 is released to open and close the lid 7. Then, the structure is structured such that it is once ventilated by the concave portion 40 and closed again by the second convex portion 39, and an intake hole 46 is provided around the through hole 29 to communicate the outside air with the inside of the container body 2. The intake hole 46 is closed by a check valve 48 provided integrally with the closing member 15, but when the inside of the container body 2 becomes negative pressure, the check valve 48 is deformed and ventilated. The projection 30 for attaching the closing member 15 arranged separately from the straw unit 19 to the top 5 is used. In addition, the vent hole 31 is provided in the center line Y of the protrusion 30 and the check valve 48 is integrally provided in the protrusion 30, which can be simplified with one member, leading to cost reduction and further check. Since the valve 48 is not a single unit, there is no risk of loss.

  In addition, since the member for closing, opening, and closing the opening upper portion 31 is integrated with the lock member 32, the lid 7 can be opened after being evacuated. Even if the upper part 31 of the opening is closed, air replacement due to the pressure inside the straw does not occur when the lid is opened, there is no risk of the beverage inside the straw jumping out of the tip, and drinking Even if the beverage container is tilted carelessly, for example, the beverage does not leak.

  Further, since the lock member 32 is pivotally supported on the plug body 11 via the rotation center shaft 34, the operability can be improved by turning the lock member 32 in a rotational movement.

  In addition, since the vent hole 31 is positioned below the rotation center shaft 34 of the lock member 32, the first protrusion 38, the recess 40, and the second protrusion 39 provided on the rotation center shaft 34. Thus, the vent 31U can be selectively operated to close, open, and close in response to the rotation of the lock member 32.

Moreover, in the above embodiment, the plug body 11 and the bottom surface 5D, 5D ′ of the top 5 of the plug body 11 are provided with a cavity 16 formed of a gap on one side, and the container opening 3 is contacted from below. The upper part of the top 5 is covered through a closing member 15 made of an elastic material that comes into contact with and closes the container opening 3 in a watertight manner and a hinge shaft 6 provided on one side of the upper surface 5U of the top 5 of the plug body 11. A lid 7, a straw unit 19 penetrating substantially at the center of the top part 5 and the closing member 15, and one side of the top part 5 from the straw unit 19, in the embodiment, the hinge shaft 6 and the straw unit 19. The upper part 30U protrudes above the through hole 29 from the through hole 29 penetrating the top part 5 in the vertical direction and the closing member 15 facing the through hole 29. In the embodiment, the radius R of the upper portion 30U is set to be the radius r of the through hole 29. Projections aimed at retaining downward to hear 30
And a vent hole 31 which penetrates in the vertical direction along the center line Y of the projection 30 and has an upper vent 31U provided at the upper end thereof, and is integrally provided in the top portion 5 and is rotated in the embodiment. A lock member 32 that is provided freely and selectively locks or unlocks the lid 7 in the closed state by being locked with the lid 7, and is provided integrally with the lock member 32 and responds to the operation of the lock member 32. When the lock member 32 locks the lid 7 in the closed state, the vent 31U is closed. When the lock member 32 releases the lock in the closed state of the lid 7, the vent 31U opens once and then the vent again. Opening and closing means for closing 31U, in the embodiment, the first convex portion 38, the second convex portion 39, the concave portion 40 and the vicinity of the through hole 29 provided in the rotation center shaft 34, the embodiment Then, the air intake hole 46 communicating with the through hole 29 and penetrating the top 5 in the vertical direction and the protrusion 30 are provided integrally. A cross section that is detachably provided on the valve seat 47 formed by the top 5 one side lower surface 5D around the lower end of the suction hole 46 that sandwiches the top 5 together with the upper portion 30U in the vertical direction. By providing the reverse-conical check valve 48, the lock member 32 is actuated before the lid 7 is opened, so that the inside of the container body 2 containing hot water or warm tea is evacuated once. Even if the inside of the container body 2 becomes negative pressure after the lid 7 is opened and the beverage is sucked out after the lid 7 is opened, the inside of the container body 2 is kept at the atmospheric pressure by the check valve 48. Protrusions 30 are provided on a closing member 15 made of an elastic material that closes the container opening 3, and the protrusion 30 has a large diameter in order to prevent the upward and downward vents 31 and the protrusions 30 from coming out downward. Opening and closing the upper 30U and the lower end of the intake hole 46 and moving the protrusion 30 upward By providing a check valve 48 that can block the valve at a place other than the valve seat 47, the vent hole 31, the check valve 48, etc. are formed with a single component together with the closing member 15, thereby reducing the number of components. It can be reduced as much as possible.

  Other embodiments will be described below. In addition, the same code | symbol is attached | subjected to the same part as the said Example 1, and the detailed description is abbreviate | omitted.

  In the second embodiment shown in FIG. 10, an elastic member 50 is interposed between the plate-like main body 35 and the upper surface 5U, and the lock member 32 is engaged with the lid 7 with the lid 7 closed, and the closed state is released. It is energized so that it will not always be closed. In the embodiment, the elastic member 50 is formed by a torsion spring, and one end 50A thereof is connected to the lock member 32, the other end 50B is connected to the top portion 5, and the intermediate portion 50C is connected to both ends of the rotation center shaft 34. It is wound on the side.

Further, the lock member 32 is engaged with the lid 7 in a state in which the lid 7 is closed, and the lock member 32 is urged by the elastic member 50 so that the lock member 32 is not always closed but is opened when the closed state is released. Therefore, when the lock is released, the lock member 32 is given an elastic force in the release direction, and it is hard to cause an erroneous operation such as closing the lock earlier than the lid when closing the lid, and the operation is ensured. Can be.
(Reference Example 1)
In Reference Example 1 shown in FIGS. 11 to 13, the lock member 32 ′ is engaged with the plug body 11 so as to move substantially linearly, and the lock member 32 ′ is advanced as shown in FIG. 12. The one end projection 51 of the lid 7 is locked by the other end recess 52 of the lock member 32, and the vent 31U can be closed by the lower end of the downward projection 53 provided on the lock member 32 '. On the other hand, as shown in FIG. 13, by retracting the lock member 32 ', the locking of the one end projection 51 of the lid 7 and the other end recess 52 of the lock member 32' is released, and the lock member 32 ' The vent 31U is opened by moving the lower end of the downward projection 53 provided at the bottom. Further, when the lock is slid to the release position, the lower end of the other one-side end projection 54 closes the vent 31U.

  As described above, the lock member 32 ′ is engaged with the plug body 11 so as to move substantially linearly, so that the operability of the lock member 32 ′ for closing, opening, and closing the vent 31U can be ensured. .

In the third embodiment shown in FIG. 14, a case is shown in which the intake hole 46 ′ is provided in the vicinity of the through hole 29 without communicating with the through hole 29. Further, the communication hole 49 ′ is disposed outside the outer edge 48A. Even in such a case, the check valve 48 can be integrated with the closing member 15.

  As described above, the beverage container plug according to the present invention can be applied to various applications.

2 Container body 3 Container opening 4 Plug body 7 Lid 8 Locking part
11 Plug body
15 Blocking member
19 Straw unit
29 Through hole
31U Vent
32 32´ Lock member
34 Rotation center axis
46 Air intake vent
48 Check valve
50 Elastic member

Claims (4)

A plug body that is detachably provided at a container opening of the container body and pivotally supports a lid that can be opened and closed, a locking portion that is arranged to hold and release the lid in a closed state, and the plug body A drinking mouth member that is engaged and formed of an elastic material, a stopper member that is detachably provided on the stopper body, closes the container body by contacting the container opening, and is closed. And a closure member for a beverage container provided with a lock member provided so as not to be opened even when the engaging portion is operated. The closure member is pivotally supported by the closure body, and the closure member Is engaged with a through-hole penetrating the plug body, and the closing member has a projection for engaging with the through-hole, and a vent is formed in the projection. In the closed state, it is blocked and the lock member is In the process of releasing the lock in the closed state, the vent hole is once ventilated and closed again, and the plug body is provided with an intake hole around the through hole. Although it is closed by a check valve provided in the closing member, when the inside of the container body becomes negative pressure, the check valve is deformed and ventilated, and the vent hole is a central axis of rotation of the lock member. stopper of beverage containers shall be the being located in the lower part. 2. The cap for a beverage container according to claim 1, wherein the intake hole is provided in communication with the through hole . 2. The stopper for a beverage container according to claim 1, wherein the air intake hole is provided separately from the through hole in the vicinity of the through hole . The locking member is engaged with the lid in a state of closing the lid, one of the claims 1-3, characterized in always urged by the elastic member so as not to be closed when the closed state is canceled 1 The stopper for a beverage container according to Item.