JP3804663B2 - Liquid container - Google Patents

Description

The present invention mainly relates to a liquid container to be subjected to accommodate and use the drinks, particularly, discharge a container body containing a liquid, it is mounted on the mouth portion of the container body, the liquid from the container body to the outside a discharge passage for, in which relates to a liquid container that includes a plug having a injection passage for injecting a liquid into the container body from the outside.

  Such a liquid container and a stopper are already known (for example, refer patent document 1). This coffee is directly received and kept warm by the automatic coffee extractor through the pouring water passage of the stopper attached to the mouth of the container body, and the stored hot coffee is connected to the stopper and the mouth of the container body. It can be directly discharged through the discharge passage formed between the two. In other words, direct entry and direct entry are possible. According to this, at homes where there are many families, employee cafeterias, restaurants, etc., beverages are stored in containers and used for small-volume drinking by the hand of many people, and beverages can be replenished within a relatively short time. It is suitable for applications that require it.

Patent Document 1 also provides an example in which a lead type check valve having a closing force by an elastic restoring force is provided at the inlet of the injection passage to prevent backflow into the injection passage at the time of beverage discharge. Disclosure. According to this, an independent state of the injection and discharge functions can be obtained by providing the discharge passage and the injection passage together, and they can be used easily without worrying about backflow and troubles.
JP-A-10-290755

  By the way, such a check valve needs to be surely opened depending on the beverage to be poured, closed at the end of the filling, and not opened by the discharge. However, it is difficult to satisfy the level of practical use of the check valve described in Patent Document 1. The closing force due to the elasticity of the valve itself can be obtained by an elastic material such as silicone rubber.However, if the closing force is set to a sufficient strength, the opening resistance is large. It will also lead to overflow phenomenon. If the closing force is reduced to solve this problem, it will easily open due to the pulsation of the discharge flow, turbulence, or negative pressure due to the discharge flow, and this will cause a reverse flow of the discharge flow to the injection passage. . In addition to the difficulty in setting the structure and force balance to solve these problems, the check valve may deteriorate or deteriorate over time due to repeated opening and closing due to its elasticity and the influence of heat. For this reason, even if an appropriate closing force is set, this is lost over time, and there is a problem that it is difficult to maintain an appropriate check valve function for a long period of time, which is not practical.

An object of the present invention, the proper check valve function at the injection passage is to provide a liquid container capable of maintaining long-term.

In order to achieve the above object, a liquid container according to the present invention includes a container main body that stores liquid, a discharge passage that is attached to the mouth of the container main body and discharges liquid from the inside of the container main body, And a stopper having an injection passage for injecting liquid into the container body, and a check valve for preventing backflow at the time of liquid discharge is provided at the inlet opening in the discharge passage of the injection passage. valve by moment closed due to gravity, by opening and closing by rotating around the horizontal axis acting around the horizontal axis, and the feature of closing contacts from below the downward valve seat of the inlet.

In such a configuration, the liquid that has been injected from the outside into the container body through the injection passage in the stopper attached to the container body is discharged through the discharge passage in the stopper and used for use. The check valve provided has a closing force due to gravity and does not hinder the injection of liquid through the injection passage, and prevents the discharge flow from flowing back into the injection passage when discharging the liquid through the discharge passage. While ensuring the function independence, the closing force due to gravity does not change due to repeated opening and closing or the influence of heat, thereby ensuring a long-term check function as set. In addition, the check valve is firmly supported by the horizontal axis, so that it can be prevented from being displaced or dropped even if it is touched during maintenance, and a closing moment due to gravity can be applied using this support structure. The structure is simplified and the opening / closing operation can be performed reliably at a fixed position without rattling. Further, the closing moment can be set easily and appropriately depending on the weight balance state around the horizontal axis. Moreover, since the liquid flow or discharge flow from the container body to the discharge passage is directed to the downward valve seat at the inlet of the injection passage that opens into the container body, the check valve is pressed against the valve seat. Thus, the closing force of the check valve can be increased only at the time of discharge without affecting the injection.

  Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination in various combinations.

According to features of the liquid container of the present invention, injected by the check valve provided in the injection passage, to achieve independent states of the discharge function at closing force due to gravity, it does not change under the influence of repeated and heat off The check function as set can be ensured for a long time, which is sufficient for practical use. In addition, the check valve is firmly supported by the horizontal axis, and with the simple structure utilizing this support structure, the closing moment can be given and the opening and closing operation can be performed reliably. Further, the closing moment can be set easily and appropriately depending on the weight balance state around the horizontal axis. Moreover, since the liquid flow or discharge flow at the time of discharge works so as to press the check valve against the valve seat, the closing force of the check valve can be increased only at the time of discharge without affecting the injection. The function can be improved and the closing force due to gravity can be reduced.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 14 for understanding of the present invention.

  As an example, the liquid container of the present embodiment employs a container body 1 having a heat insulating structure for containing beverages 10 as shown in FIG. The heat insulating structure is such that the vacuum double bottle 2 is accommodated in a metal outer case 3. Moreover, it is a handy type having a handle 4 for convenience of hand pouring. However, the basic features of the present invention do not specifically ask the presence or absence of the handle 4, the difference in the heat insulating structure such as the presence or absence of a heat insulating structure, the use of a heat insulating material, or the adoption of a metal vacuum double container. The handle 4 is integrally formed with a resin shoulder member 5 that is attached by forcibly fitting the upper end of the outer case 3 and the lower end is screwed to the outer case 3.

  As shown in FIG. 1, the liquid container according to the present embodiment is attached to a container main body 1 that stores liquid and a mouth portion 11 of the container main body 1, and discharges beverages 10 from the container main body 1 to the outside. A stopper 20 having a discharge passage 22 and an injection passage 21 for injecting beverages 10 into the container body 1 from the outside is provided, and a check valve 41 for preventing a backflow at the time of beverage discharge is provided in the injection passage 21. In addition, the check valve 41 has a closing force F2 that works by gravity F1 in various states as representatively shown in the examples of FIGS. Thereby, the beverages 10 injected from the outside into the container body 1 through the injection passage 21 in the stopper 20 attached to the container body 1 can be discharged through the discharge passage 22 in the stopper 20 for use. it can. At that time, the check valve 41 provided in the injection passage 21 has a closing force F2 due to gravity F1, and does not prevent the injection of the beverage 10 through the injection passage 21, and at the time of discharging the beverage 10 through the discharge passage 22. The discharge flow can be prevented from flowing back into the injection passage 21. As a result, the non-return function as set can be ensured for a long time since the closing force F2 due to the gravity F1 does not change due to repeated opening and closing and the influence of heat while making the injection and discharge functions independent.

  Here, the gravity F1 may be a check valve or an accessory, and the check valve 41 of the example shown in FIG. 3 is a flap type that rotates around a horizontal axis 41d and opens and closes. Therefore, the closing force F2 works as a closing moment due to gravity F1 acting around the horizontal axis 41d. Further, the check valve 41 in the example shown in FIG. 14 opens and closes by opening and closing a downward valve seat 21c1 provided at the inlet 21c of the injection passage 21 from below, and the weight member 101 provided around the inlet 21c. The gravity force F1 of the weight member 101 is converted into an upward closing force F2 of the check valve 41 so that the distance between the two is higher than that. It is connected through a small hole 103 provided in the peripheral wall of the injection passage 21 by a connecting member 102 having a folded portion 102a.

  When the check valve 41 is pivotally supported by the horizontal shaft 41d as in the example of FIG. 3, it can be supported easily and firmly, and it can be prevented from being displaced or dropped even if touched during cleaning. Since the closing moment due to the gravity F1 can be applied using the support structure, the configuration is simplified, and the opening / closing operation can be reliably performed at a fixed position without rattling. Further, the closing moment can be easily and appropriately set according to the weight balance state around the horizontal axis 41d. In addition, as in the example shown in FIG. 3, the injection passage 21 has an insertion port 21c that opens into the discharge passage 22, and the check valve 41 is lowered to the downward valve seat 21c1 by the closing force F2 in the downward direction of the insertion port 21c. The liquid flow or discharge flow of the beverage 10 from the inside of the container body 1 to the discharge passage 22 is directed toward the inside of the container body 1 as indicated by the solid line arrow in FIG. Since it goes to the downward valve seat 21c1 at the inlet 21c of the injection passage 21 that opens, the check valve 41 is operated so as to press the valve seat 21c1, so that the check valve is only discharged at the time without affecting the injection. The closing force of 41 can be increased. In this case, the gravity F1 that generates the closing force F2 is obtained by the check valve 41 itself, and the gravity F1 acts on the center of gravity of the check valve 41. The vertical plane passing through the axis of 41d needs to be located closer to the side where the handle 4 of the container body 1 is located, in other words, closer to the side opposite to the side where the discharge port 31 is located. The larger the value, the larger the closing force F2. That is, the magnitude of the closing force F2 can be adjusted by the lever ratio at which the same gravity F1 works. Such a deviation of the gravity F1 can be achieved by reducing the weight of the check valve 41 on the front side with respect to the straight plane, and increasing the weight on the rear side. The weight can be increased by increasing the volume or eliminating the weight, or by using a weight member or an accessory.

Further, as shown in FIG. 3, the horizontal axis 41 d is located closer to the rear than the center line 104 of the injection passage 21. As a result, the liquid flow or the discharge flow of the beverage 10 at the time of discharge can be used as a further closing force applied to the closing force F2 in a larger range facing the valve seat 21c1 of the check valve 41. The valve seat 21c1 is a lower end of the insertion port 21c and is inclined obliquely downward from the rear side toward the front side. Thereby, the opening stroke from the closed position of the check valve 41 to the fully open position with respect to the charging port 21c and the closing stroke from the opened position to the closed position can be reduced, and the container body 1 is tilted forward to drink. The discharge flow when discharging 10 becomes easy to press the check valve 41 toward the closed position. Further, since the check valve 41 is in the closed position in the inclined posture, the liquid remaining on the check valve 41 in the injection passage 21 is reduced. Incidentally, preferably, a range exerting gravity F1 of the check valve 41 from closing force F2 to not easily float or not float can range a range in the liquid flow to exert a gravitational F1 of check valve 41 is reduced It inhibited or prevented.

  Further, an intake port 22b for sucking outside air by a negative pressure at the time of discharge is provided at the rear part of the peripheral wall around the input port 21c in the discharge passage 22. Thereby, at the time of discharge with the container body 1 tilted forward, the liquid flow and the discharge flow of the beverage 10 do not reach the rear part of the peripheral wall around the input port 21c in the discharge passage 22 to create a negative pressure region. Since the pressure region passes outside through the intake port 22b and sucks outside air, gas-liquid exchange in the container main body 1 can be smoothly performed during discharge.

  In the above, the liquid container according to the present embodiment is also attached to the mouth portion 11 of the container main body 1 that contains a liquid such as the beverage 10 and discharges the beverage 10 from the container main body 1 to the outside. 22 and a stopper 20 having an injection passage 21 for injecting the beverage 10 into the container body 1 from the outside, and a check valve 41 for preventing a backflow at the time of liquid discharge is provided in the injection passage 21. The check valve 41 also provides a stopper having a closing force F2 due to gravity F1.

  Here, the examples shown in FIGS. 1 to 8 will be described in more detail. As shown in FIG. 1, a stopper body member 12 formed by a shoulder member 5 of the container body 1 and detachably attached to a mouth portion 11 leading to the mouth 2a of the vacuum double bottle 2, and an inner side of the stopper body member 12 The stopper member 13 is detachably attached to the stopper member 20 so that the stopper member 20 can be disassembled. Therefore, the plug main body member 12 can be attached and detached by screwing the screw thread 12a provided on the outer periphery with the screw thread 11a provided on the inner periphery of the mouth portion 11. However, the present invention is not limited to this, and various methods such as attaching the seal member attached to the outer periphery to the mouth portion 11 including the mouth 2a of the vacuum double bottle 2 so as to be detachably attached are adopted. be able to. The plug inner member 13 is mounted so that the screw thread 13a provided on the outer periphery can be attached to and detached from the screw thread 12b formed on the inner periphery of the plug body member 12. However, the present invention is not limited to this, and various methods such as attaching a seal member attached to the outer periphery so as to be elastically fitted to the inner periphery of the plug main body member 12 and to be detachable can be employed. When the plug main body member 12 and the plug inner member 13 are made of resin together with the shoulder member 5, the plug main body member 12 and the plug inner member 13 are preferably heat resistant to withstand hot water and the like, and polypropylene is preferable. However, other materials such as metals can be used.

  The stopper member 13 is provided with an injection passage 21 through which the beverage 10 is introduced from the outside of the container body 1 into the container body 1 as shown by broken arrows in FIG. 1 and FIG. A discharge passage 22 is formed between the stopper main body member 12 and a beverage passage 10 for directly discharging the beverage 10 accommodated in the container main body 1 from the container main body 1 to the outside of the container main body 1 as shown by solid arrows in FIGS. So, you can directly put in and take out.

  Thus, in this example, since the stopper main body member 12 and the stopper inner member 13 are assembled so as to be attachable and detachable, the discharge passage 22 formed between them, as well as the discharge passage 22 as illustrated in FIG. Including the space 23 for heat insulation that may be provided in the upper part or the like, it can be disassembled and opened as shown in FIG. As a result, the entire surface of the plug member such as the plug main body member 12 or the plug inner member 13 can be easily washed without any blind spot, and can be disinfected with hot water. Therefore, it is excellent in care and can be kept clean for a long period of time, so it greatly contributes to food hygiene.

  Further, since the stopper body member 12 does not form a passage or the like as described in Patent Document 1 between the container body 1 and the mouth portion 11, the mouth portion 11 is used to the full, that is, the mouth portion 11 is filled. The discharge passage 22 between the plug inner member 13 can be formed with a simple diameter having a sufficient passage cross-sectional area together with the injection passage 21 possessed by the plug inner member 13. . As a result, injecting the beverage 10 as indicated by the broken arrow does not take off from the injection passage 21, overflows, or takes time, and it takes time to discharge the contained beverage 10. , Not disturbed.

  More specifically, the injection passage 21 is formed straight on substantially the entire axis of the stopper 20 and the inner member 13 of the stopper, but has an opening larger than the outer diameter of the mouth 2a of the vacuum double bottle 2 on the upper surface. In addition, a funnel-shaped saucer portion 21a having a flat operation flange 13b around it, and a medium diameter that is slightly smaller than the inside diameter of the mouth 2a of the vacuum double bottle 2 downward from the center of the bottom of the saucer portion 21a. The intermediate passage portion 21b continues to be provided, and the insertion port 21c continues from the intermediate passage portion 21b with a smaller diameter. Thereby, since the injection | pouring channel | path 21 can accept the drink 10 to be inject | poured in the range wider than the outer diameter of the opening | mouth 2a of the vacuum double bottle 2 in the saucer part 21a, the injection | pouring drink 10 is hard to remove | deviate outside. . In addition, since the intermediate passage portion 21b having a medium diameter is formed on the tray portion 21a, a pocket having a relatively large capacity is formed on both sides, so that the inlet 21c is narrowed to the minimum necessary size in terms of heat retention performance. Even if the injection flow rate into 1 is limited, it is easy to suppress overflowing of the injected beverages 10. Therefore, it is convenient when a person transfers coffee or the like once received by the server or the like into the container body 1. The saucer portion 21a is also convenient when receiving a tea strainer containing tea leaves and directly pouring while pouring hot water from above.

The discharge passage 22 is an annular passage opened in the vacuum double bottle 2 formed by a concentric double structure in which the plug body member 12 and the plug inner member 13 below the space 23 have a concentric structure. A discharge port 22a facing the spout 31 formed integrally with the front portion in the circumferential direction of the shoulder member 5 is formed at the front portion in the direction. As a result, when the beverage 10 accommodated with the container body 1 tilted forward is discharged, a large amount of the beverage 10 in the vacuum double bottle 2 flows smoothly into the annular and relatively wide discharge passage 22. In addition, regardless of the inclination of the container body 1, the discharge is restricted to an appropriate flow rate range by the discharge port 22a having a minimum necessary size for the purpose of keeping the temperature and limiting the discharge flow rate. Further, the upper part of the plug body member 12 forms a dish-shaped operation flange 12c that spreads on the upper surface of the shoulder member 5 along the expansion of the tray part 21a and the operation flange 13b of the plug inner member 13, and immediately above the discharge passage 22. The range extending from this part to the lower surface of the operation flange 13b is the space 23 for heat insulation. The spout 31 can also be provided on the side of the plug body member 12 as a continuous discharge passage 22. In this case, if the spout 31 is positioned on the upper surface of the shoulder member 5, the screw 20 and the plug body member 12 are not hindered from being attached to or detached from the container body 1, and the stopper 20 or the plug body member 12 is attached to or detached from the container body 1. Can be configured such that the spout 31 enters from the upper surface of the shoulder member 5.

  The dish-shaped operation flange 12c of the stopper main body member 12 and the operation flange 13b of the inner member 13 of the stopper are positioned on the upper surface of the shoulder member 5 so as to attach and detach the stopper 20 to and from the container main body 1. At this time, there is an advantage that the stopper main body member 12 and the stopper inner member 13 can be easily attached and detached integrally. In addition, in the state of being removed from the container body 1, both the dish-shaped operation flange 12c and the operation flange 13b can be gripped individually, and both can be easily attached and detached. Further, for these attachment / detachment operations, the dish-shaped operation flange 12c and the operation flange 13b have anti-slip surfaces 12c1 and 13b1 that are formed by cutting both sides of the circular portion flat as shown in FIGS. Yes. From the design, the upper surface of the shoulder member 5 is also formed with a cut-shaped surface 5a on both sides of the circular portion so as to match the planar shape of the dish-shaped operation flange 12c and the operation flange 13b.

  Corresponding to these, each of the threads 11a, 12a, 12b, 13a is a single thread, regardless of whether it is continuous or discontinuous, and any one of the male and female screws that are screwed together. At the end point, a stopper 13a1 that prevents further screwing as shown by a thread 13a in FIGS. 7 and 8 is provided so that the mounting directions are aligned as shown in FIG.

  Further, the check valve 41 pivotally supports the eccentric position by the horizontal axis 42, and a closing moment of the closing force F2 is generated around the horizontal axis 42 by the action of gravity F1 due to its own weight. ) Is pushed open by the dynamic load at the time of injection indicated by a broken arrow. To satisfy this, the check valve 41 that closes the entire inlet 21c is pivotally supported by a horizontal shaft 42 provided at a position eccentric to the outside of the inlet 21c. Moreover, the eccentric direction is the rear side. As a result, the check valve 41 generates a closing force due to a clockwise closing moment in FIGS. 1 and 3, and a solid line arrow in FIG. 3B of the beverage 10 containing the container body 1 tilted forward. When the discharge port 21c in the injection passage 21 is inclined to increase the closing moment of the check valve 41 and the discharge flow of the beverage 10 indicated by the solid arrow passes as shown in FIG. Therefore, the check valve 41 is not opened by the discharge of the beverage 10 because the check valve 41 is closed in accordance with the direction in which the check valve 41 is pushed. The horizontal shaft 42 may be provided on the check valve 41 side, and the bearing hole or the bearing portion may be provided on the injection passage 21 side.

In order to enhance such a function, the check valve 41 may be in the form of a lead, that is, a tongue, but a weight wall that rises in a substantially L shape at the rear end of the tongue 41a but has a slightly larger thickness. 41b is provided to raise the rear volume without increasing the bulk, so that the closing force F2 due to the closing moment is increased. Although the bearing piece 41c which fits the horizontal shaft 42 is provided on both sides of the tongue piece portion 41a, it does not particularly contribute to the closing force due to the closing moment in the illustrated example. Further, the lower end of the charging port 21c serving as the valve seat 21c1 is inclined downward from the rear side to the front side. As a result, the closing moment is stronger than when the tongue piece 41a is closed to a horizontal posture, so that the certainty of closing is improved. Further, JP-gravity F1 acts on the range of the check valve 41, the entire non-return valve 41 may be made of metals in the illustrated example, but since costly, resins having heat resistance, liquid in polypropylene For example The material is adjusted for specific gravity so that it does not float or is difficult to float . However, a heavy material such as a metal material may be partially inserted or attached to the rear side of the check valve 41 made of polypropylene. Further, a baffle plate portion 43 that closes the rear half portion is provided at the lower end of the annular discharge passage 22. This prevents the discharge flow of the beverage 10 shown by the solid line in FIG. 3B from acting on the rear side of the check valve 41 and pushing it up to open the check valve 41 by any chance. Can do.

  As shown in FIG. 7B, the check valve 41 made of polypropylene has an inclined surface 42a that is inclined downward from the base formed on the lower side of the horizontal shaft 42 toward the tip, and an inner surface of the bearing piece 41c. As shown in FIGS. 7 (a) and 7 (b), using the guide groove 41e formed from the mounting hole 41d to the upper end of the bearing piece 41c, the mounting hole 41d is engaged with the horizontal shaft 42 with elastic deformation of the bearing piece 41c. The engagement is pivoted, and this engagement can be removed using the elastic deformation of the bearing piece 41c, so that the check valve can be replaced or washed.

  The discharge passage 22 can also be provided with a self-closing valve 52 that is opened by the discharge flow of the beverage 10 by having a rotation fulcrum 51 at the top as shown by a virtual line in FIG. Thus, the discharge passage 22 can be closed except when the beverage 10 is discharged, which is suitable for heat insulation. Further, as shown in FIG. 6B, if two are provided before and after the discharge port 22a, it becomes more suitable for heat insulation. Moreover, since the self-closing valve 52 is provided on the side of the independent discharge passage 22 and is not related to the container main body 1 side, it is easy to provide it in various forms, and it is protected from the outside in the stopper 20 and is not easily damaged. It can be. Moreover, the lower end of the stopper main body member 12 is located below the lower end of the stopper inner member 13 attached to the stopper main body member 12 as shown in FIG. Thereby, in the state of the stopper 20 in which the stopper main body member 12 and the stopper inner member 13 are combined, the lower end portion of the injection passage 21 of the stopper inner member 13 is located in the stopper body member 12, that is, in the discharge passage 22, and external force is applied. Protected from receiving. As a result, the injection passage 21 is not damaged even if it is in the form of a narrow passage when the stopper 20 is removed and placed directly, or washed, and if a check valve 41 is provided, it is protected. This is preferable. Therefore, even if the check valve 41 is made of resin, it is easy to ensure a long life.

Further, the gap between the stopper body member 12 and the stopper inner member 13 is sealed by an O-ring 61 on the discharge passage 22 as shown in FIG. Thereby, it is possible to prevent the beverage 10 from temporarily entering an unnecessary portion such as the heat insulating space 23 formed by the plug body member 12 and the plug inner member 13 from the discharge passage 22 side. In the illustrated example, as shown in FIG. 6B, an O-ring 61 is elastically mounted in a groove 62 provided on the outer periphery of the boundary portion between the intermediate passage portion 21b and the saucer portion 21a in which the thread 13a is formed. At the final stage of screwing the stopper inner member 13 onto the stopper body member 12, the O-ring 61 forms the outlet 22a and the inlet 22b of the outlet passage 22 as shown in FIG. 1 is pressed against the upper end 63a of the fitting tube 63 with the plug inner member 13 extending on the inner part and forming the screw thread 12b on the inner periphery, as shown in FIG. 1, and the screws between the screw threads 12b and 13a. The gap between the plug body member 12 and the plug inner member 13 is sealed at the upper part of the mating portion. However, the plug body member 12 is attached at the final stage in which the O-ring 61 is attached to the outer peripheral portion below the portion of the plug inner member 13 where the thread 13a is formed, and the plug inner member 13 is screwed onto the plug body member 12. Under the portion of the fitting cylinder 63 where the screw thread 12b is formed, it is brought into pressure contact with the stepped portion that protrudes beyond the screw thread 12b, and at the lower part of the screw mating part between the screw threads 12b and 13a, the plug body member 12 It is also possible to provide a seal between the stopper and the inner member 13. Thereby, it can also prevent that the drink 10 to discharge reaches | attains a screwing part.
As a result, the beverage 10 is not wasted in unnecessary portions and is not wasted, and it does not cause the propagation of germs after a long time.

  The discharge passage 22 is provided with a guide wall 71 that guides the discharge flow of the beverage 10 as shown in FIG. 4 toward the discharge port 22a. Thereby, in order to discharge the beverage 10 from the inside of the container body 1, as shown in FIGS. 4 (a) and 4 (b), the guide wall 71 provided in the discharge passage 22 has the insertion port 21c and the intermediate passage portion 21b. The discharge flow can be guided toward the discharge port 22a and rectified in cooperation with the inclined surface formed by the tapered connecting portion 21f. As a result, the beverage 10 can be discharged more smoothly and without disturbance. In the illustrated example, the guide wall 71 is provided with a protruding amount that fits with a slight play S on the inner periphery of the fitting cylinder 63 around the connecting portion 21f as shown in FIG. 4B. The guide wall 71 is guided to the discharge flow of the beverage 10 exclusively by the front surfaces of the left and right guide walls 71 and the front guide wall 71. The injection passage 21 is inserted into the fitting tube 63 so that it does not deviate significantly from the fitting tube 63, and the check valve 41 or the like interferes with the fitting tube 63 and is damaged. Can be prevented. The guide wall 71 of the discharge passage 22 is integrally formed around the outer periphery of the injection passage 21, but may be formed integrally around the inner periphery of the discharge passage 22.

  Furthermore, as shown in FIGS. 1, 2, and 5, four locations in the circumferential direction are also provided on the inner surface of the saucer portion 21a of the stopper member 13 (specifically, front and rear, left and right, but there is no special meaning). A guide wall 81 facing in the radial direction is provided. In this case, the guide wall 81 guides the injected beverage 10 received by the tray part 21a toward the center side of the bottom part of the tray part 21a and the intermediate passage part 21b at the center. Even if it is an injection flow, it can be prevented that it jumps to the side or overflows and overflows from the bottom surface of the tray part 21a. Further, the guide wall 81 as in this example can also be used as an operation piece for screwing and unscrewing operations when the stopper member 13 is attached to and detached from the stopper body member 12.

  In addition, the liquid container of this example can be attached to and detached from the inside of the stopper main body member 12 as described above. The stopper member 13 is provided, and the stopper member 13 is provided with an injection passage 21 through which the beverage 10 is directly injected from the outside of the container body 1 into the container body 1, and the stopper member 13 and the stopper body member. A discharge passage 22 for directly discharging the beverage 10 contained in the container body 1 from the inside of the container body 1 to the outside of the container body 1 is formed between the container 20 and the stopper 20 that can be directly put in and taken out. provide.

  In the example shown in FIG. 9, a pair of left and right rectifying ribs 111 are provided on the lower surface of the tongue piece 41 a of the check valve 41 that faces the baffle plate 43. In the example shown in FIG. 10, the tongue piece 41 a of the baffle plate 43 faces the tongue piece 41 a. A pair of left and right rectifying ribs 111 are provided on the upper surface, and these ribs 111 allow outside air sucked from the intake port 22b during discharge to flow into the container body 1 between the check valve 41 and the baffle plate 43. By squeezing the squeeze sequentially by the restriction passages formed by the pair of left and right rectifying ribs 111, the liquid flow and the discharge flow at the time of discharge are diverted, so that the exchange of gas and liquid can be performed more smoothly by avoiding mutual collisions and disturbances. To be achieved. However, such rectifying ribs 111 can be provided on both the tongue piece portion 41a and the baffle plate 43, or can be distributed on both sides. One or more rectifying ribs 111 may be provided between the left and right rectifying ribs 111.

  In the example shown in FIG. 11, the baffle plate 43 of the discharge passage 22 is provided on the front side. As a result, the liquid flow and the discharge flow of the beverage 10 at the time of discharge are closed so that the tongue piece portion 41a can be pressed to the valve seat 21c1 side in many areas of the check valve 41 as indicated by arrows in the figure. The function is enhanced. However, since the liquid flow and the discharge flow easily reach the range in which the gravity F1 of the check valve 41 works, a design that does not receive the buoyancy that exceeds the closing force F2 is required.

  In the example shown in FIG. 12, a pair of left and right rectifying ribs 112 are provided on the upper surface of the baffle plate 43 facing the tongue piece 41a of the baffle plate 43 at the front of the example of FIG. 11, and in the example shown in FIG. A pair of left and right rectifying ribs 112 are provided on the lower surface of the tongue piece 41a facing the baffle plate 43 at the front of the check valve 41 in the front of the example of FIG. As shown by the arrows, the discharge from the check valve 41 and the baffle plate 43 to the discharge port 22a is sequentially restricted by the restriction passage formed by the pair of left and right rectifying ribs 112. The air is diverted from the outside air sucked from the air intake port 22b at the time, and the exchange of the gas and liquid is achieved more smoothly by avoiding mutual collision and disturbance. To be able to reach. However, such a rectifying rib 112 can be provided on both the tongue piece 41a and the baffle plate 43, or can be provided on both sides. One or more rectifying ribs 112 may be provided between the left and right rectifying ribs 112.

  The example shown in FIG. 14 described above will be described in more detail. In order to stably operate the gravity F1 of the weight member 101 as the closing force F2 on the check valve 41 that opens and closes by opening and closing the downward valve seat 21c1 from below, The weight member 101 is fitted as a ring to the outer periphery of the insertion port 21c and is guided up and down. In addition, the front side is set to the rear side so that the ring-shaped weight member 101 is not affected by the liquid flow or the discharge flow of the beverage 10 at the time of discharge, disturbs the discharge, or disturbs the discharge flow. The shape is thinner than that and is scraped from the lower side to the upper side. However, a specific configuration can be designed freely.

  INDUSTRIAL APPLICABILITY The present invention is practically convenient for containers that serve beverages for use by hand-poured small mouths by a large number of people, and it is easy to ensure the independence of the injection passage and the discharge passage that are provided side by side so that they can be directly put in and taken out.

It is the side view which looked at the liquid container principal part of one example which concerns on embodiment of this invention in cross section. It is a perspective view of the container of FIG. It is sectional drawing of the principal part which shows the state at the time of injection | pouring and discharge of the container of FIG. It is a related figure with the cross section of the principal part of the container of FIG. 1, and the one part lower surface. It is a top view which shows more than the shoulder part of the container of FIG. It is sectional drawing which shows the state which the stopper part of the container of FIG. 1 decomposed | disassembled. FIG. 2 is an exploded cross-sectional view of a member in the container of FIG. 1 and a partial rear view thereof. It is the front view which looked at the half part of the stopper part of the container of FIG. It is sectional drawing and the bottom view of another principal part of another liquid container concerning embodiment of this invention, and the bottom view of a non-return valve. It is sectional drawing and the bottom view of another liquid container principal part which concerns on embodiment of this invention. It is sectional drawing and the bottom view of another liquid container principal part which concerns on embodiment of this invention. It is sectional drawing and the bottom view of another liquid container principal part which concerns on embodiment of this invention. It is sectional drawing and the bottom view of another principal part of another liquid container concerning embodiment of this invention, and the bottom view of a non-return valve. It is sectional drawing of another liquid container principal part which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body 4 Handle 10 Beverages 11 Mouth part 12 Plug body member 13 Inner member 20 Plug 21 Injection path 21a Sauce part 21c Input port 22 Discharge path 31 Spout 41 Check valve 42 Horizontal shaft 101 Weight member 102 Connecting material 102a Folding part F1 Gravity F2 Closing force

Claims (1)

  A stopper having a container main body for storing liquid, a discharge passage for discharging liquid from the inside of the container main body to the outside, and an injection passage for injecting liquid from the outside into the main body of the container. And a check valve for preventing a backflow at the time of liquid discharge is provided at the inlet opening in the discharge passage of the injection passage, and the check valve rotates around the horizontal axis and opens and closes. A liquid container characterized in that the liquid container is closed by coming into contact with the downward valve seat of the inlet from below by a closing moment due to gravity acting on the inlet.

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