JP2007269403A - Beverage container and cap for beverage container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent potable water from leaking and being contaminated from the outside by inhibiting members other than a powdered beverage material in a cap from falling down into the potable water by a simple constitution. <P>SOLUTION: The cap for a beverage container is formed so as to screw to the opening thread of the beverage container, and contains the powdered beverage material inside. The cap is composed of a lower cap composed of a lid 18 in which a thread is formed and a supporting tube body which is formed into one piece in this lid and in which a sealing film 24 is adhered to a lower opening plane and in which an annular engagement groove 26 is formed in an upper section, a pressing top panel 29, an annular side marginal section integrally formed with the pressing top panel, a securing section having the tip lower section bent inside, formed in an inclined face and provided at the lower edge of this annular side marginal section and a storage tube formed on the rear face of the pressing panel and inserted in proximity to the inside of the supporting tube body and having the lower edge formed on the inclined opening face. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a beverage container and a beverage container cap configured to maintain the state of a powdered beverage material until immediately before drinking.

  Various beverages using so-called PET bottles are prevalent, but various devices are known for drinking green tea with a richer flavor. In the structure where powdered green tea is enclosed in the cap of a plastic bottle, this enclosed state is held until just before drinking, this enclosed state is released at the time of drinking and powdered tea is mixed with the water in the plastic bottle, There are various forms as follows.

  The cap of the PET bottle is composed of an intermediate cap and an upper cap, and a packaging container in which powdered tea is enclosed is installed inside the intermediate cap. A bar projecting downward is attached to the top wall of the upper cap. An intermediate cap is screwed to the PET bottle, and an upper cap is also screwed to the intermediate cap. By rotating the upper cap at the time of drinking, the packaging container in which the powdered tea is enclosed is broken by lowering the stick, and the powdered tea falls into the water and dissolves (see Patent Document 1).

  In addition, this Patent Document 1 also discloses a configuration in which the upper cap rod is pierced by pressing the upper cap downward instead of rotating the screw, as a configuration for piercing the packaging container of the intermediate cap with the upper cap rod.

  According to the configuration of Patent Document 1, it is possible to mix fresh powdered tea with water immediately before drinking, and it is possible to drink flavorful green tea. However, in one configuration in which the rod for breaking through is lowered, it is necessary to rotate the screw inside the upper cap to lower the upper cap. According to this configuration, it is possible to completely pierce the packaging container by completely rotating the screw to a predetermined position, but since the screw is rotated by hand, it is misunderstood that it has sufficiently rotated. If the rotation is stopped, the packaging container cannot be pierced or may be insufficiently opened.

  In addition, in another configuration of Patent Document 1, it is assumed that when the upper cap is pressed, the packaging container is torn and is pressed only during drinking. However, if an external force is inadvertently applied to the upper cap when it is not at the time of drinking, the packaging container is broken through by the stick, and a situation occurs in which powdered tea comes out when not intended. Such anxiety may occur after the user purchases the beverage, but it may also occur during the product manufacturing process or during transportation, and a preventive measure is required.

  As a method of storing powdered tea inside a cap and mixing this powdered tea with drinking water of a plastic bottle body at the time of drinking, in Patent Document 2, a cylindrical body in which powdered tea is stored is removed when the cap is removed. A configuration for dropping into water is disclosed. However, according to this configuration, not only powdered tea but also the cylindrical body is dropped into drinking water, and it is dangerous and hygienic problems such as the possibility of accidental ingestion that other than powdered tea is mixed in drinking water. There is.

  Also, powder tea is stored in the storage part in the cap, the lower part of the storage part is sealed, and the cap is screwed in so that the protruding part breaks the weak part of the sealing part and stores the powdered tea. The structure which mixes in water is known (refer patent document 3).

  However, in the configuration disclosed in Patent Document 3, since the sealing portion is ruptured by the screwing operation of the cap, it is necessary for the user to fully screw in to a predetermined position. As a result, the sealing portion is not completely broken, and there is a possibility that all powdered tea cannot be mixed in the drinking water.

  Patent Document 4 has a configuration similar to that of Patent Document 3. In Patent Document 4, powder tea is stored in a bottle mouth, and a screwed cap is screwed downward so that a protrusion provided on the cap breaks the sealing portion. A configuration in which powdered tea is dropped and mixed in drinking water is disclosed. However, in this configuration, the user may stop halfway without completely performing the screwing operation of the cap. As a result, the breaking of the sealing portion becomes incomplete, and there is a possibility that all powdered tea does not fall into the drinking water.

  Moreover, the other structure which mixes the powdered tea accommodated in the cap in drinking water is disclosed by patent document 5. FIG. In FIG. 4 of Patent Document 5, powdered tea is stored inside the cap, and the opening at the bottom of the cap is sealed with a valve body. The valve body is provided with a pressing portion protruding upward, and this pressing portion penetrates the upper end of the cap and is exposed to the outside. And the protective cover is provided so that this press part may not be pressed carelessly. When the user wants to drink, first, the protective cover is removed, the pressing portion is pushed, and the valve body is moved downward against the sealing ring, whereby powdered tea is dropped and mixed into the drinking water.

However, there are several difficulties with this configuration. That is, the powdered tea in the cap is always sealed with the sealing ring and the valve body, but water may enter the powder from between the valve body and the ring. Furthermore, a hole is formed in the upper end of the cap in order to take out the pressing portion to the outside, and moisture and contaminants may be mixed into the inside from this hole. The cap is provided with a protective cover, which is intended to prevent malfunction and inadvertent pressing of the pressing part when the pressing part is exposed. It is not a thing.
Japanese Patent Laid-Open No. 2004-238022 JP 2004-352302 A JP 2004-276842 A JP 2003-310158 A JP 2003-12015 A

  The present invention was made to solve all the above-mentioned problems, and allows all powdered beverage materials stored in the cap to be dropped and mixed into drinking water only when necessary with a simple configuration. It is an object of the present invention to provide a beverage container and a beverage container cap in which no member other than powdered beverage material does not fall into the drinking water during drinking, and there is no leakage of drinking water to the outside or contamination from the outside.

The beverage container according to the present invention is a beverage container comprising a beverage container having an opening screw portion, and a cap that is attached to the opening screw portion and stores a powdered beverage material therein.
The cap is composed of a lower cap that can be screwed into an opening screw portion of the beverage container and an upper cap that can be fitted to the lower cap.
The lower cap is composed of a lid portion that is screwed into the opening screw portion of the beverage container, and a support cylinder that is integrally formed with the lid portion and is inserted inside the opening screw portion of the beverage container, A sealing film is fixed to the lower opening surface of the support cylinder, and an annular fitting groove is formed in the upper part of the support cylinder,
The upper cap includes a pressing top plate, an annular side edge formed integrally with the pressing top plate, and a lower end of the annular side edge that is bent inward and has a lower end formed on an inclined surface. And a storage cylinder that is integrally formed on the back surface of the pressing top plate and is inserted close to the inside of the support cylinder and has a lower end formed in the inclined opening.

  In the beverage container according to the present invention, a threaded portion is formed on the upper end of the support cylinder of the lower cap, and a threaded portion is formed on the upper side of the annular side edge of the upper cap. The gist.

  The gist of the beverage container according to the present invention is that an annular protrusion having a triangular cross section is formed at a position surrounding the storage tube on the back surface of the pressing top plate of the upper cap.

  The gist of the beverage container according to the present invention is that a mesh sheet is fixed to the inclined opening of the support cylinder.

  The gist of the beverage container according to the present invention is that the mesh unit size of the mesh sheet is set to a size substantially equal to the average particle size of the powdered beverage material stored in the storage cylinder.

A cap for a beverage container according to the present invention is a cap for a beverage container that is formed so as to be screwed into an opening thread portion of a beverage container, and contains a powdered beverage material inside,
A lower cap comprising a lid portion having a threaded portion, and a support cylinder formed integrally with the lid portion, a sealing film being fixed to the lower opening surface, and an annular fitting groove formed in the upper portion When,
A pressing top plate, an annular side edge formed integrally with the pressing top plate, a locking portion in which a lower end of the annular side edge is bent inward and a lower end of the tip is formed on an inclined surface; A storage cylinder that is formed on the back surface of the pressing top plate and is inserted in the vicinity of the inside of the support cylinder and has a lower end formed on the inclined opening surface;
It is made up of the following.

  In the cap for a beverage container according to the present invention, a threaded portion is formed on the upper end of the support cylinder of the lower cap, and a threaded portion is formed on the upper side of the annular side edge of the upper cap. This is the gist.

  The gist of the cap for a beverage container according to the present invention is that an annular protrusion having a triangular cross section is formed at a position surrounding the storage tube on the back surface of the pressing top plate of the upper cap.

The cap for beverage containers according to the present invention is summarized in that a mesh sheet is fixed to the inclined opening of the support cylinder.

  The gist of the cap for beverage containers according to the present invention is that the mesh unit size of the mesh sheet is set to a size substantially equal to the average particle size of the powdered beverage material stored in the storage cylinder.

  When a cap containing powdered beverage material is attached to a beverage container such as a plastic bottle containing drinking water, and the powdered beverage material is mixed with drinking water immediately before drinking, members other than the powdered beverage material are in the drinking water at the time of use. Made it possible to avoid falling. Moreover, it became possible to mix all the powdered drink materials accommodated by pressing the cap completely into the drinking water. Furthermore, even in the state before drinking, the cap does not fall unintentionally due to pressing, and even after pressing, it is possible to prevent contamination from the outside without leakage of drinking water from the inside. Became.

  Embodiments according to the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a cross-section of the main part of an embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views of the main part for explaining the operation of the embodiment of the present invention.

  In the following embodiments, a so-called PET bottle is preliminarily filled with drinking water such as fresh water, and the cap according to the present invention is attached to the PET bottle for use. That is, FIG. 1 shows a so-called plastic bottle 13 made of plastic having an opening screw portion 11 at the upper portion and a drinking water storage portion 12 formed integrally with the opening screw portion 11. The plastic bottle 13 is filled with drinking water 14 such as mineral water.

  In retail stores such as convenience stores, the above-described plastic bottles filled with drinking water are widely sold, and the user purchases and drinks them. In the present invention, the improved cap 15 described below is attached to the opening screw portion 11 of the plastic bottle filled with the drinking water 14 for use. That is, the cap (not shown) initially attached to the plastic bottle 13 sold is removed, and the improved cap 15 according to the present invention is attached.

  The cap 15 includes a plastic lower cap 16 and an upper cap 17. The lower cap 16 includes an annular lid 18 and a support cylinder 19 that is formed integrally with the lid 18 through the upper end of the lid 18 concentrically. A screw that is screwed into the opening screw portion 11 of the PET bottle 13 is formed inside the lid body 18, and this lid portion 18 seals the PET bottle instead of the cap that was originally attached to the PET bottle 13. It is formed to stop.

  The support cylinder 19 of the lower cap 16 is formed in a cylindrical shape, and the lower cylinder 20 formed so that the outer surface thereof is close to the inner surface of the opening screw portion 11 of the PET bottle 13, and the lid portion 18. The upper cylindrical body 21 is formed upward from the upper end. Although the lower cylinder 20 and the upper cylinder 21 are shown separately for convenience of explanation, they are integrally formed as shown in FIG. 1, and the cylindrical inner surface 22 is formed smoothly. Further, the lower end of the lower cylindrical body 20 forms an opening surface 23 parallel to the opening surface of the plastic bottle 13. The lower end opening surface 23 of the lower cylindrical body 20 is sealed with a sealing film 24. The sealing film 24 is firmly attached to the lower end surface of the lower cylindrical body 20 using a heat welding method. The sealing film 24 is formed from a synthetic resin thin film that does not allow moisture to pass through.

  The upper part of the upper cylindrical body 21 of the lower cap 16 is formed thick with a large diameter via an inclined surface 25 from below, and a fitting groove 26 is formed in an annular shape there. A threaded portion 27 is formed on the upper edge of the fitting groove 26.

  Next, the structure of the upper cap 17, which is another member for forming the cap 15, will be described with reference to FIG. The upper cap 17 includes an annular side edge 28, a pressing top plate 29 that covers the upper portion, and a storage cylinder 30 that extends downward on the back surface of the pressing top plate 29. A locking portion 31 bent inward is formed at the lower end of the annular side edge portion 28, and this locking portion 31 is fitted in a fitting groove 26 formed at the upper end of the support cylinder 19. . The lower end of the locking portion 31 is formed on the inclined surface 32, and the upper end of the locking portion 31 is a flat surface 33. In addition, although the latching | locking part 31 may be formed over the lower end whole periphery of the cyclic | annular side edge part 28, for example, you may form in each four places which shifted | deviated 90 degrees.

  The storage cylinder 30 formed on the back surface of the pressing top plate 29 has a cylindrical shape arranged close to the inner surface of the lower cap 16, and the lower end is an inclined opening surface 34. Accordingly, the inclined opening surface 34 has an elliptical shape, and an upper oval end 35 and a lower oval end 36 are formed. The tips of the upper oval end 35 and the lower oval end 36 are formed at acute angles that are the inclination angles of the inclined opening surface 34. The tip of the lower oval end 36 is located above the sealing film 24 that seals the opening surface 23 in a state where the engaging portion 31 of the annular side edge portion 28 is fitted in the fitting groove 26. The position is set to be at a predetermined interval.

  An annular threaded portion 37 is formed on the upper inner surface of the annular side edge portion 28 and at the boundary corner with the pressing top plate 29. As will be described later, the annular screw portion 37 is formed so as to be screwed with the screw portion 27 of the upper cylindrical body 21 when the upper cap 17 is pressed downward.

  An annular protrusion 38 is formed on the back surface of the pressing top plate 29 at a position surrounding the storage cylinder 30. The annular protrusion 38 has a triangular cross section, and is formed at a position where the top portion faces downward and faces the upper surface of the support cylinder 19.

  In the storage cylinder 30 of the cap 15 formed as described above, a powdered beverage material 39 is stored, which is schematically illustrated in FIG. As a typical powdered beverage material 39, there is powdered tea. However, the powdered beverage material 39 is not limited to this as long as it is a beverage material that falls and dissolves in drinking water. As powdered tea, tea leaves are processed into extremely fine particles, but granule material produced by freeze-drying such as instant coffee may be stored.

  Next, the operation of the embodiment of the present invention will be described with reference to FIGS. Drinking water 14 such as mineral water is already stored in the drinking water storage portion 12 of the plastic bottle 13. A cap 15 in which a powdered beverage material 39 is housed as shown in FIG. 1 is screwed into the opening screw portion 11 of the plastic bottle 13.

  In this state, since the locking portion 31 of the upper cap 17 is fitted in the fitting groove 26 formed in the upper cylindrical body 21, the upper cap 17 can be applied even if a little force is applied to the pressing top plate 29. Never descends. Therefore, with the cap 15 containing the powdered beverage material 39 inside attached to the PET bottle 13, it can be carried by hand, stored inside the bag, etc., or packed and transported for sale. However, the upper cap 17 does not move.

  Also, the movement of the plastic bottle 13 prevents the internal drinking water 14 from leaking to the outside and does not enter the inside of the cap 15. This is because the lid portion 18 of the cap 15 is firmly screwed into the opening screw portion 11 of the PET bottle 13, and the sealing film 24 that does not allow moisture to pass through the opening surface 23 of the lower cylindrical body 20 is firmly heat-sealed. By being.

  If the user wants to drink the powdered beverage material 39 by dissolving it in the drinking water 14 in the PET bottle 13, the user presses the pressing top plate 29 of the upper cap 17 by hand as shown by the upper arrow in FIG. Press down.

  As shown above, the upper cap 17 does not move downward unless an unintended force is applied because the locking portion 31 is fitted in the fitting groove 26. By applying a further force to the existing state, the upper cap 17 starts to move downward as shown in FIG.

  That is, when a pressing force such as the upper arrow 40 is applied to the pressing top plate 29 of the upper cap 17, the locking portion 31 moves downward from the fitting groove 26 along the inclined surface 32. At this time, since the upper cap 17 is made of plastic, the locking portion 31 is released downward from the fitting groove 26 when the annular side edge portion 28 is slightly bent.

  When the upper cap 17 starts to move downward in this manner, the storage cylinder 30 also starts to move downward. The tip of the storage cylinder 30, that is, the lower oval end 36 reaches the surface of the sealing film 24, and as the storage cylinder 30 is further lowered, the sealing film 24 is moved to the lower oval end 36 of the storage cylinder 30 as shown in FIG. Peeling starts from the pressed part. Since the sealing film 24 has started to peel off, the powdered beverage material 39 inside the storage cylinder 30 also starts to fall into the drinking water storage part 12 from the opening surface 23 of the lower cap 16, but still reaches a sufficient drop. Not in.

  By continuing the pressing on the pressing top plate 29 indicated by the upper arrow 40 by the user, the upper cap 17 is further lowered as shown in FIG. Due to the pressing on the pressing top plate 29, the upper cap 17 descends until just before the annular protrusion 38 on the back surface of the pressing top plate 29 contacts the upper surface of the upper cylindrical body 21. In this state, the annular threaded portion 37 inside the upper cap 17 and the threaded portion 27 formed on the upper end of the upper cylindrical body 21 come into contact with each other. The user rotates the upper cap 17 together with stopping the lowering of the upper cap 17 to screw the annular screw portion 37 and the screw portion 27 together. As a result, the upper cap 17 and the lower cap 16 are coupled.

  The storage cylinder 30 is further lowered by the lowering of the upper cap 17, and the opening of the sealing film 24 by the lower oval end 36 further proceeds. As shown in FIG. 3, the sealing film 24 is also pushed by the upper oval end 35 of the storage cylinder 30, and the opening is further promoted. Then, all of the powdered beverage material 39 in the storage cylinder 30 falls and mixes into the drinking water 14 stored in the drinking water storage portion 12 of the plastic bottle 13 as indicated by the lower arrow 41.

  By pressing the upper cap 17 in this manner, the powdered beverage material 39 can be dropped and mixed into the drinking water 14, and the user twists the lid portion 18 of the lower cap 16 to open the screw portion 11 of the PET bottle 13. The cap 15 is removed from the drinking water 14 in which the powdered beverage material 39 is dissolved. After the end of drinking, the lid portion 18 of the lower cap 16 may be screwed into the screw portion 11 of the plastic bottle 13 and closed again.

  Even in this state, if the PET bottle 13 is not moved or shaken vigorously, the drinking water 14 in the PET bottle 13 does not leak to the outside with a slight movement. However, if the plastic bottle 13 is moved vigorously or stored in the bag or the like and laid sideways, the drinking water 14 passes between the storage cylinder 30 and the inner surface of the lower cap 16 and leaks from above the upper cylinder 1 to the outside. End up.

  In order to prevent such leakage, after the pressing of the upper cap 15 is completed, the upper cap 17 is rotated and the screw portion 27 of the upper cylindrical body 21 and the annular screw portion 37 inside the upper cap are screwed together. By this screwing, the tip end of the annular protrusion 38 on the back surface of the pressing top plate 29 comes into contact with the upper surface of the upper cylindrical body 21 so that this state is maintained. As a result, the drinking water 14 is prevented from flowing out inside the annular projection 38, and leakage to the outside is prevented. In addition, it also prevents the entry of external contamination into the PET bottle 13.

  As described above, according to the embodiment of the present invention, the plastic bottle according to the present invention described above is purchased by purchasing a plastic bottle of drinking water such as mineral water that is generally sold and removing the screw cap that was attached at the time of purchase. By attaching a cap in which the beverage material is stored, the powdered beverage material can be mixed into the drinking water for the first time at the time of drinking.

  This makes it possible to use flavorful beverages at any time. In addition, the cap containing the powdered beverage material according to the present invention described above from the time of sale is attached to the cap of the plastic bottle containing the drinking water, and the user who has purchased the powder beverage material until the time of drinking. You may carry without mixing, and may mix both for the first time when drinking.

  According to the embodiment of the present invention, even when carrying a daily activity with a cap containing a powdered beverage material in a PET bottle, the upper cap is pushed without wearing a special protective member. The sealing film was not peeled off. Furthermore, it is possible to maintain a strong and watertight state between the upper cap and the lower cap even after using the drinking water in which the sealing film is once peeled and the powdered beverage material is mixed. It has become possible to prevent leakage and contamination from the outside.

  Next, another embodiment of the present invention will be described with reference to FIG. The description of the configuration and operation common to FIGS. 1 to 3 described above is omitted.

  In the example of FIG. 1, no powder cap 39 is attached to the lower end of the upper cap 17, that is, the inclined opening surface 34. Dropped into the drinking water 14 and mixed.

  Such a configuration according to the present invention can provide good drinking water with a sufficient flavor, but depending on the type of powdered beverage material, if the stored powdered beverage material is dropped into the drinking water as it is, some of it will be damaged. There is a case where a phenomenon occurs in which a state is accumulated in the bottom of the container.

  Therefore, in the example of FIG. 4, the mesh sheet 42 is fixed to the inclined opening surface 34 at the lower end of the storage cylinder 30 of the upper cap 17. The mesh size of the mesh sheet 42 is approximately equal to the particle size of the powdered beverage material to be stored. For example, if the average particle size of fine powdered tea is 3 μm, the mesh unit opening length of the mesh sheet 42 is also set to 3 μm. According to this dimension, the powder does not pass through the mesh at the place of vibration during transportation or when the user moves the cap. However, when the powder is shaken in water or vigorously shaken above the water surface, the powder having substantially the same diameter as the mesh passes through the mesh and falls or mixes in the water. If a powder lump with a large particle size in a lumpy state is present in the powder, it cannot pass through the mesh even if shaken and can remain in the storage cylinder.

  Next, another embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 5, the cap 15 includes a plastic lower cap 16 and an upper cap 17.

  The lower cap 16 includes an annular lid 18 and a support cylinder 19 that is formed integrally with the lid 18 through the upper end of the lid 18 concentrically. A screw that is screwed into the opening screw portion 11 of the PET bottle 13 is formed inside the lid body 18, and this lid portion 18 seals the PET bottle instead of the cap that was originally attached to the PET bottle 13. It is formed to stop.

  The support cylinder 19 of the lower cap 16 is formed in a cylindrical shape, and the lower cylinder 20 formed so that the outer surface thereof is close to the inner surface of the opening screw portion 11 of the PET bottle 13, and the lid portion 18. The upper cylindrical body 21 is formed upward from the upper end. Although the lower cylinder 20 and the upper cylinder 21 are shown separately for convenience of explanation, they are integrally formed as shown in FIG. 5, and the cylindrical inner surface 22 is formed smoothly.

  A lower end of the lower cylindrical body 20 forms an inclined opening surface 49 having an inclination with respect to the opening surface of the plastic bottle 13. The inclined opening surface 49 of the lower cylindrical body 20 is sealed with the sealing film 24. The sealing film 24 is firmly attached to the lower end surface of the lower cylindrical body 20 using a heat welding method. The sealing film 24 is formed from a synthetic resin thin film that does not allow moisture to pass through.

  A collar portion 50 is formed on the upper portion of the upper cylindrical body 21 of the lower cap 16. To do. A threaded portion 27 is formed on the outer periphery of the flange portion 50.

  The upper cap 17 includes an annular side edge 28, a pressing top plate 29 that covers the upper portion, and a storage cylinder 30 that extends downward on the back surface of the pressing top plate 29. A locking portion 31 that is bent inward is formed at the lower end of the annular side edge portion 28. The locking portion 31 is positioned below the collar portion 50 formed at the upper end of the support cylinder 19 so that the upper cap 17 and the lower cap 16 are not separated. The lower end of the locking portion 31 is formed on the inclined surface 32, and the upper end of the locking portion 31 is a flat surface 33. In addition, although the latching | locking part 31 may be formed over the lower end whole periphery of the cyclic | annular side edge part 28, for example, you may form in each four places which shifted | deviated 90 degrees.

  The storage cylinder 30 formed on the back surface of the pressing top plate 29 has a cylindrical shape arranged close to the inner surface of the lower cap 16, and the lower end is an inclined opening surface 34. Accordingly, the inclined opening surface 34 has an elliptical shape, and an upper oval end 35 and a lower oval end 36 are formed. The tips of the upper oval end 35 and the lower oval end 36 are formed at acute angles that are the inclination angles of the inclined opening surface 34. Further, the front end of the lower oval end 36 is the sealing film 24 that seals the inclined opening surface 49 in a state where the engaging portion 31 of the annular side edge portion 28 is located below the collar portion 50. Therefore, the position is set to be slightly above the predetermined interval. This is to prevent the sealing film 24 from being broken through in this state.

  A groove 51 is formed on the outer periphery of the storage cylinder 30 in the vicinity of the inclined surface 32 of the locking portion 31. For example, a neoprene O-ring 52 is inserted into the groove 51. Therefore, the airtightness of the space formed by the outer periphery of the storage cylinder 30 and the upper cylinder 21 is ensured.

  An annular threaded portion 37 is formed on the upper inner surface of the annular side edge portion 28 and at the boundary corner with the pressing top plate 29. The annular screw portion 37 is formed so as to be screwed with the screw portion 27 of the upper cylindrical body 21 when the upper cap 17 is pressed downward.

  An annular protrusion 38 is formed on the back surface of the pressing top plate 29 at a position surrounding the storage cylinder 30. The annular protrusion 38 has a triangular cross section, and is formed at a position where the top portion faces downward and faces the upper surface of the support cylinder 19.

  A stopper 53 is fitted around the support cylinder 19 of the lower cap 16, which is an area formed by the lower portion of the locking portion 31 of the upper cap 17 and the upper surface of the lid portion 18. As shown in FIG. 6, the stopper 53 is, for example, a substantially ring-shaped or C-shaped one having a cutout portion of about ¼ circumference, and a knob portion 54 is integrally formed on the side facing the cutout portion. Is formed. The stopper 53 is made of a resin material having flexibility. Therefore, the stopper 53 can be pulled out from the support cylinder 19 by pulling the knob 54 so as to be deformed so that the defect portion is opened along the support cylinder 19.

  Next, the operation of this embodiment will be described.

  When the user dissolves the powdered beverage material 39 in the drinking water 14 in the PET bottle 13 and wishes to drink it, first, the user grasps the knob portion 54 of the stopper 53 with his / her finger and pulls it out of the support cylinder 19.

  Next, the pressing top plate 29 of the upper cap 17 is pushed downward by hand. Since the locking part 31 is located below the collar part 50, the upper cap 17 does not move downward unless an unintended force is applied. By applying further force to this locked state, The upper cap 17 begins to move downward.

  When the upper cap 17 starts to move downward, the storage cylinder 30 also starts to move downward. The distal end of the storage cylinder 30, that is, the lower oval end 36 reaches the surface of the sealing film 24, and the sealing film 24 is pushed from the position pressed by the lower oval end 36 of the storage cylinder 30 by further lowering the storage cylinder 30. Start peeling. Since the sealing film 24 begins to peel off, the powdered beverage material 39 inside the storage cylinder 30 also starts to fall from the inclined opening surface 49 of the lower cap 16 into the drinking water storage portion 12, but still has a sufficient drop. Not reached.

  By continuing the pressing on the pressing top plate 29 indicated by the upper arrow 40 by the user, the upper cap 17 is further lowered. Due to the pressing on the pressing top plate 29, the upper cap 17 descends until just before the annular protrusion 38 on the back surface of the pressing top plate 29 contacts the upper surface of the upper cylindrical body 21. In this state, the annular threaded portion 37 inside the upper cap 17 and the threaded portion 27 formed on the upper end of the upper cylindrical body 21 come into contact with each other. The user rotates the upper cap 17 together with stopping the lowering of the upper cap 17 to screw the annular screw portion 37 and the screw portion 27 together. As a result, the upper cap 17 and the lower cap 16 are coupled.

  The storage cylinder 30 is further lowered by the lowering of the upper cap 17, and the opening of the sealing film 24 by the lower oval end 36 further proceeds. The sealing film 24 is also pressed by the upper oval end 35 of the storage cylinder 30, and the opening is further promoted. And all of the powdered drink material 39 in the storage cylinder 30 falls, and mixes in the drinking water 14 accommodated in the drinking water storage part 12 of the plastic bottle 13.

  A simple downward pressing operation of the pressing top plate 29 of the cap results in a pushing motion, and the upper cap 17 and the lower cap 16 can be engaged.

  If the PET bottle 13 is moved violently or stored in the bag or the like and laid down, the drinking water 14 passes between the storage cylinder 30 and the inner surface of the lower cap 16 and may leak from above the upper cylinder 1 to the outside. .

  In this embodiment, since the O-ring 52 is fitted on the outer periphery of the storage cylinder 30, such leakage can be prevented.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

The principal part sectional view showing the embodiment of the present invention. Sectional drawing for demonstrating the operation | movement of embodiment of this invention. Sectional drawing for demonstrating the operation | movement of embodiment of this invention. The principal part sectional view showing other embodiments of the present invention. The principal part sectional view showing other embodiments of the present invention. The external view of the stopper used by embodiment shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Opening screw part, 12 ... Drinking water storage part, 13 ... Plastic bottle, 14 ... Drinking water, 15 ... Cap, 16 ... Lower cap, 17 ... Upper cap, 18 ... Cover part, 19 ... Supporting cylinder, 20 ... Lower cylindrical body, 21 ... Upper cylindrical body, 22 ... Cylindrical inner surface, 23 ... Lower end opening surface, 24 ... Sealing film, 25, 32 ... Inclined surface, 26 ... Fitting groove, 27 ... Screw part, 28 ... Annular side Edge, 29 ... Pressing top plate, 30 ... Storage cylinder, 31 ... Locking portion, 33 ... Plane, 34 ... Inclined opening surface, 35 ... Upper oval end, 36 ... Lower oval end, 37 ... Annular screw portion, 38 ... annular projection, 39 ... powdered beverage material, 40 ... upper arrow, 41 ... lower arrow, mesh sheet ... 42, 49 ... inclined opening surface, 50 ... collar, 51 ... groove, 52 ... O-ring, 53 ... stopper, 54 ... Picking part.

Claims (18)

A beverage container comprising a beverage container body having an open screw portion, and a cap mounted on the open screw portion and containing a powdered beverage material therein,
The cap is composed of a lower cap that can be screwed into an opening screw portion of the beverage container body and an upper cap that can be fitted to the lower cap,
The lower cap includes a lid portion that is screwed into an opening screw portion of the beverage container body, and a support cylinder that is integrally formed with the lid portion and is inserted inside the opening screw portion of the beverage container body. A sealing film is fixed to the lower opening surface of the support cylinder, and an annular fitting groove is formed in the upper part of the support cylinder,
The upper cap includes a pressing top plate, an annular side edge formed integrally with the pressing top plate, and a lower end of the annular side edge that is bent inward and has a lower end formed on an inclined surface. And a storage cylinder that is integrally formed on the back surface of the pressing top plate and is inserted close to the inside of the support cylinder and has a lower end formed in an inclined opening. container. A beverage container comprising a beverage container body having an open screw portion, and a cap mounted on the open screw portion and containing a powdered beverage material therein,
The cap includes a lower cap that can be screwed into an opening screw portion of the beverage container body, an upper cap that can be fitted to the lower cap, and a stopper that can be inserted and pulled out between the lower cap and the upper cap. And
The lower cap includes a lid portion that is screwed into an opening screw portion of the beverage container body, and a support cylinder that is integrally formed with the lid portion and is inserted inside the opening screw portion of the beverage container body. A sealing film is fixed to the inclined opening surface at the bottom of the support cylinder, and a collar is formed at the top of the support cylinder,
The upper cap includes a pressing top plate, an annular side edge formed integrally with the pressing top plate, and a lower end of the annular side edge that is bent inward and has a lower end formed on an inclined surface. And a storage cylinder that is integrally formed on the back surface of the pressing top plate, is inserted close to the inside of the support cylinder, has a lower end formed in an inclined opening, and an airtight member is fitted on the outer periphery. A beverage container comprising:   The threaded portion is formed on the upper end of the support cylinder of the lower cap, and the threaded portion is formed on the upper side of the annular side edge of the upper cap. The beverage container as described.   The beverage container according to claim 3, wherein an annular protrusion having a triangular cross section is formed at a position surrounding the storage cylinder on the back surface of the pressing top plate of the upper cap.   The beverage container according to any one of claims 1 to 4, wherein a mesh sheet is fixed to the inclined opening of the support cylinder.   6. The beverage container according to claim 5, wherein the mesh unit size of the mesh sheet is set to a size substantially equal to the average particle size of the powdered beverage material stored in the storage cylinder.   The beverage container according to claim 2, wherein the airtight member is an O-ring.   The beverage container according to claim 2, wherein the stopper is substantially ring-shaped or C-shaped with a notch in part.   The beverage container according to claim 2, wherein the stopper is formed with a pulling knob on a side of the notch facing the stopper. A cap for a beverage container that is formed so as to be screwed into an opening thread portion of a beverage container, and contains a powdered beverage material inside,
A lower cap comprising a lid portion having a threaded portion, and a support cylinder formed integrally with the lid portion, a sealing film being fixed to the lower opening surface, and an annular fitting groove formed in the upper portion When,
A pressing top plate, an annular side edge formed integrally with the pressing top plate, a locking portion in which a lower end of the annular side edge is bent inward and a lower end of the tip is formed on an inclined surface; An upper cap formed of a storage cylinder formed on the back surface of the pressing top plate and inserted close to the inside of the support cylinder and having a lower end formed on the inclined opening surface;
It is comprised from these, The cap for drink containers characterized by the above-mentioned. A cap for a beverage container that is formed so as to be screwed into an opening thread portion of a beverage container, and contains a powdered beverage material inside,
The support portion is configured by a lid portion screwed into the opening screw portion of the beverage container body, and a support cylinder formed integrally with the lid portion and inserted inside the opening screw portion of the beverage container body. A sealing film is fixed to the inclined opening surface of the lower part of the cylindrical body, and a lower cap formed with a collar part on the upper part of the supporting cylindrical body,
It is possible to fit into the lower cap, the pressing top plate, an annular side edge integrally formed with the pressing top plate, and the lower end of the annular side edge is bent inward, and the lower end of the tip is inclined. It is formed integrally with the formed locking portion and the back surface of the pressing top plate and is inserted close to the inside of the support cylinder, and the lower end is formed as an inclined opening, and an airtight member is fitted on the outer periphery. An upper cap formed with a storage cylinder,
A stopper that is inserted and pulled out between the lower cap and the upper cap;
It is comprised from these, The cap for drink containers characterized by the above-mentioned.   The threaded portion is formed on the upper end of the support cylinder of the lower cap, and the threaded portion is formed on the upper side of the annular side edge of the upper cap. The cap for drink containers as described.   The cap for beverage containers according to claim 7 or 8, wherein an annular protrusion having a triangular cross section is formed at a position surrounding the storage cylinder on the back surface of the pressing top plate of the upper cap.   The cap for beverage containers according to any one of claims 7 to 10, wherein a mesh sheet is fixed to the inclined opening of the support cylinder.   12. The cap for a beverage container according to claim 11, wherein a mesh unit size of the mesh sheet is set to a size substantially equal to an average particle size of the powdered beverage material stored in the storage cylinder.   12. The beverage container cap according to claim 11, wherein the airtight member is an O-ring.   12. The cap for a beverage container according to claim 11, wherein the stopper is substantially ring-shaped or C-shaped with a notch in part.   12. The cap for a beverage container according to claim 11, wherein a pulling knob is formed on a side of the stopper facing the notch.

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