JP2020079100A - Beverage container and cap assembly - Google Patents

Abstract

To provide a beverage container whose handleability has been improved.SOLUTION: A beverage container 1 includes: a cylindrical container body 2 whose one end is open and the other end is closed; and a drinking mouth adaptor 3 which is mounted so that at least a part of an opening is closed and forms a drinking mouth. The drinking mouth adaptor 3 has: an adaptor body 4 which is mounted on the container body 2; and an elastic member 5 which is held on the adaptor body 4. And the elastic member 5 includes: a first surface 11 which contacts the adaptor body 4 and forms a seal part; and a second surface 12 which is provided opposing the first surface 11, contacts an end surface 2a of the container body 2, and forms a seal part. An annular projecting part 8 which is pressed against the adapter body 4 when the adapter body 4 is mounted to the container body 2 is provided on the first surface 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a beverage container and a cap assembly used for the beverage container.

  Generally, a beverage container for infants has a container body in which a beverage is stored and a drinking mouth adapter that forms a drinking mouth. The spout adapter is removably attached to the container body.

Jitsubo 3092596

  In the above-mentioned beverage container, when attaching the drinking spout adapter to the container body, in order to prevent the beverage from leaking between the drinking spout adapter and the container body, the drinking spout adapter and the container body are closely attached. Therefore, it is necessary to form a seal between them. This requires a great deal of force and impairs the handleability of the beverage container. Even if the drinking spout adapter and the container body are pressed firmly against each other, the drinking spout adapter has individual differences due to manufacturing errors, etc., so a stable seal is formed between the drinking spout adapter and the container body. It was difficult to do.

  The present invention has been made in consideration of the above points, and is required for attaching the drinking mouth adapter to the container body while forming a sufficiently stable seal without depending on individual differences of the drinking mouth adapter. The purpose is to improve the handling property of the beverage container by reducing the force that becomes.

The beverage container according to the present invention,
A tubular container body opened at one end and closed at the other end,
A spout adapter attached to at least partially close the opening to form a spout,
The mouthpiece adapter has an adapter body attached to the container body, and an elastic member held by the adapter body,
The elastic member has a first surface that contacts the adapter body to form a seal portion, and a second surface that faces the first surface and that contacts the end surface of the container body to form a seal portion. The first surface is provided with an annular convex portion that is pressed against the adapter body when the adapter body is attached to the container body.

In the beverage container according to the present invention,
The adapter body has a cylindrical peripheral wall portion and a ceiling wall portion connected over the entire length of the peripheral wall portion,
The annular convex portion may be arranged along a connecting portion between the top wall portion and the peripheral wall portion.

In the beverage container according to the present invention,
The end surface of the container body may have an inclined surface that inclines downward toward the outside with respect to the opening surface defined by the container body.

In the beverage container according to the present invention,
The annular convex portion may be located outside the upper edge of the inclined surface of the container body.

In the beverage container according to the present invention,
The adapter body has a cylindrical peripheral wall portion and a ceiling wall portion connected over the entire length of the peripheral wall portion,
The elastic member may include a plate-shaped portion that extends along the top wall portion, and the annular convex portion may be integrally formed with the plate-shaped portion and protrude from the plate-shaped portion.

In the beverage container according to the present invention,
A hole is formed in the top wall portion of the adapter body,
The elastic member has a drinking mouth portion that is integrally formed with the plate-like portion to form the drinking mouth,
The mouthpiece portion may pass through the hole provided in the top wall portion of the adapter body.

In the beverage container according to the present invention,
You may further provide the openable and closable cap which covers the said drinking mouth in the closed state.

The cap assembly according to the invention is
A cap assembly attached to the container body,
A mouthpiece adapter mounted to at least partially close the opening of the container body to form a mouthpiece,
The mouthpiece adapter has an adapter body attached to the container body, and an elastic member held by the adapter body,
The elastic member has a first surface that contacts the adapter body to form a sealing portion, and a second surface that faces the first surface and that contacts the end surface of the container body to form a sealing portion. The first surface is provided with an annular convex portion that is pressed against the adapter body when the adapter body is attached to the container body.

  According to the present invention, while forming a sufficiently stable seal without depending on individual differences in the drinking mouth adapter, the force required for attaching the drinking mouth adapter to the container body is reduced, and handling of the beverage container is performed. Can improve sex.

It is a figure for explaining one embodiment of the present invention, and is a side view showing a drink container. The top view which looked at the drink container of FIG. 1 from the upper part. The disassembled perspective view which shows the drink container of FIG. FIG. 3 is a partial cross-sectional view of the beverage container of FIG. 2, taken along line I-I.

  An embodiment of the present invention will be described below with reference to the drawings.

  1 to 4 are views for explaining an embodiment of a beverage container according to the present invention. Of these, FIGS. 1 and 2 are a side view and a plan view, respectively, showing the overall configuration of the beverage container. 3 is an exploded perspective view showing the beverage container of FIG. 1, and FIG. 4 is a partial cross-sectional view of the beverage container of FIG. 2 taken along the line I-I. Note that, in FIG. 3, a straw, which will be described later, is omitted for clarity.

  A beverage container 1 shown in FIGS. 1 to 4 is a container for a user (mainly an infant) to drink a beverage such as tea or juice through a drinking mouth. The beverage container 1 includes a container body 2 and a drinking mouth adapter 3 that forms the drinking mouth and is detachably attached to the container body 2. A cap 6 is attached to the drinking spout adapter 3 to cover the drinking spout in a closed state. The mouthpiece adapter 3 and the cap 6 form a cap assembly.

  The container body 2 is for accommodating a beverage therein. As well shown in FIG. 3, the container body 2 is formed in a tubular shape that is open at one end (upper end) and closed at the other end (lower end). A male screw part 2s for attaching the drinking spout adapter 3 is formed on the outer periphery of the upper end of the container body 2.

  The drinking spout adapter 3 includes an adapter body 4 attached to the container body 2 and an elastic member 5 held by the adapter body 4. As will be described later, the elastic member 5 includes a drinking mouth portion 20 with which the user of the beverage container 1 makes a mouth.

  As well shown in FIG. 3, the adapter body 4 is formed in a tubular shape in which one end (upper end) is partially closed. Specifically, the adapter body 4 has a cylindrical peripheral wall portion 4a and a ceiling wall portion 4b connected over the entire length of the upper edge of the peripheral wall portion 4a. As shown in FIGS. 1 and 4, a female screw portion 4s is formed on the inner periphery of the lower end portion of the peripheral wall portion 4a. The female screw portion 4s meshes with the male screw portion 2s of the container body 2. The adapter body 4 can be attached to the container body 2 by engaging the female screw portion 4s and the male screw portion 2s. As shown in FIG. 3, a mounting hole 4h into which the elastic member 5 is mounted is formed in the top wall portion 4b. Further, the ceiling wall portion 4b is provided with a protrusion 4c that protrudes from the ceiling wall portion 4b to the side opposite to the container body 2. As shown in FIGS. 1 and 4, the protrusion 4c has an engagement recess 4d formed on the side thereof to engage with an engagement protrusion 6d of the cap 6 described later and hold the cap 6 in a closed state. Has been done.

  As shown in FIGS. 1, 3 and 4, the elastic member 5 includes a plate-shaped portion 10, a drinking mouth portion 20 forming a drinking mouth, and a straw receiving portion 30 to which the straw 7 is connected. ,have. The plate portion 10, the drinking spout portion 20, and the straw receiving portion 30 are integrally formed. The elastic member 5 is made of a soft material such as silicone so that an infant can easily fit in the drinking portion 20.

  As shown in FIG. 3, the plate-shaped portion 10 has a flat plate shape as a whole. As shown in FIG. 4, the plate-shaped portion 10 is arranged between the top wall portion 4 b of the adapter body 4 and the annular upper end surface 2 a that defines the opening of the container body 2. The plate-shaped portion 10 extends along the top wall portion 4b of the adapter body 4 and forms a seal between the top wall portion 4b and the upper end surface 2a of the container body 2. More specifically, the plate-shaped portion 10 is provided so as to face the first surface 11 that contacts the adapter body 4 and forms a seal portion, and contacts the upper end surface 2 a of the container body 2. And a second surface 12 that forms a seal portion. As can be seen from FIGS. 2 and 4, the plate-shaped portion 10 has a mounting hole for the top wall portion 4b when viewed in the direction from the ceiling wall portion 4b of the adapter body 4 toward the plate-shaped portion 10 (vertical direction). An opening 14 for a drinking hole and a ventilation hole 15 communicating with the container body 2 are provided at a position within 4h. The vent hole 15 is provided with a valve plate portion 16 that closes the vent hole 15.

  As shown in FIG. 3, the drinking spout 20 extends from the first surface 11 of the plate-shaped portion 10. The drinking spout 20 has a cylindrical shape as a whole. As shown in FIG. 4, the inner space of the mouthpiece 20 communicates with the inner space of the container body 2 through the mouthpiece opening 14 of the plate-shaped portion 10. The drinking spout 20 penetrates the mounting hole 4h of the adapter body 4.

  As shown in FIGS. 2 and 3, a mounting portion 40 for mounting the elastic member 5 to the adapter body 4 is formed around the drinking hole portion 20 and the ventilation hole 15. As shown in FIG. 4, the mounting portion 40 projects from the first surface 11 of the plate-shaped portion 10 and penetrates the mounting hole 4 h of the adapter body 4. At the upper end of the mounting portion 40, an extension portion 41 is formed that extends outside the mounting hole 4h when viewed from the top wall portion 4b of the adapter body 4 toward the plate-shaped portion 10 (vertical direction). Since the extending portion 41 is arranged on the side of the top wall portion 4b of the adapter body 4 opposite to the plate-shaped portion 10, in other words, the edge portion that defines the mounting hole 4h of the top wall portion 4b has a plate-shaped portion. The elastic member 5 is held by the adapter body 4 by being arranged between the 10 and the extension portion 41.

  As shown in FIGS. 1 and 4, the straw receiving portion 30 projects into the container body 2 from the second surface 12 of the plate-shaped portion 10. The straw receiving portion 30 has a cylindrical shape, and is provided upright around the drinking opening 14 of the plate-shaped portion 10. One end of the straw 7 is connected to the straw receiving portion 30.

  In addition, as described above, since the respective parts 10, 20, 30 having different functions are integrally formed, the number of parts of the beverage container 1 can be reduced and the handling property at the time of cleaning can be improved. Further, it is possible to easily assemble the respective parts 10, 20, 30 to the adapter body 4.

  Next, the cap 6 will be described. As shown in FIGS. 1 to 3, the cap 6 has a dome shape and covers the drinking spout 20 in a closed state. By covering the drinking spout 20 with the cap 6, the drinking spout 20 can be kept hygienic. The cap 6 is connected to the adapter body 4 of the drinking spout adapter 3 so as to be swingable about a swing axis Ax. Then, the cap 6 opens and closes by moving relative to the drinking spout adapter 3.

  The cap 6 has an inner side surface 6 a facing the drinking spout 20 in a closed state. The inner surface 6a is provided with an engagement projection 6d that engages with the above-described engagement recess 4d of the adapter body 4 when the cap 6 is closed. The cap 6 is maintained in a closed state by the engagement convex portion 6d and the engagement concave portion 4d engaging with each other.

  Further, the cap 6 has a closing projection 6b that projects from the inner surface 6a of the cap 6 and bends and crushes the drinking opening 20 to close the drinking opening 20 when the cap 6 is closed. By closing the drinking spout 20, the beverage is prevented from leaking from the drinking spout 20.

  The cap 6 has an open convex portion 6c that projects from the inner surface 6a of the cap 6 and is inserted into the ventilation hole 15 of the elastic member 5 with the cap 6 closed to open the valve plate portion 16 that covers the ventilation hole 15. .. By opening the valve plate portion 16 of the ventilation hole 15, it is possible to prevent the internal pressure of the container body 2 from rising and the beverage from leaking out from the drinking opening 20.

  By the way, in a beverage container having a container body and a drinking mouth adapter detachably attached to the container body, when the drinking mouth adapter is attached to the container body, it is possible that the beverage leaks out between the drinking mouth adapter and the container body. In order to prevent this, it is necessary to bring the mouthpiece adapter and the container body into close contact with each other to form a seal therebetween. This requires a great deal of force and impairs the handleability of the beverage container. Even if the drinking spout adapter and the container body are pressed firmly against each other, the drinking spout adapter has individual differences due to manufacturing errors, etc., so a stable seal is formed between the drinking spout adapter and the container body. It was difficult to do.

  In consideration of such a situation, the beverage container 1 of the present embodiment is formed on the container body 2 of the drinking adapter 3 while forming a sufficiently stable seal without depending on the individual difference of the drinking adapter 3. The device is designed to reduce the force required for mounting and to improve the handleability of the beverage container 1.

  Specifically, as shown in FIG. 3, the annular convex portion 8 is provided on the first surface 11 of the plate-shaped portion 10 along the peripheral edge thereof. The annular convex portion 8 is pressed against the adapter body 4 (more specifically, against the top wall portion 4b) with the adapter body 4 attached to the container body 2.

  The beverage container 1 using the elastic member 5 in which the annular convex portion 8 is formed on the first surface 11 of the plate-like portion 10 is compared with the beverage container using the elastic member in which the annular convex portion 8 is not provided. Then, the force for attaching the drinking spout adapter 3 to the container body 2 can be reduced. This is because, when the drinking spout adapter 3 is attached to the container body 2, the plate-like portion 10 of the elastic member 5 is compressed between the top wall portion 4b of the adapter body 4 and the upper end surface 2a of the container body 2 and the elastic member 5. A seal is formed between the container body 2 and the upper end surface 2a, but when the annular convex portion 8 is formed on the first surface 11 of the plate-shaped portion 10 and when the annular convex portion 8 is not provided. By comparison, the volume of the elastic member 5 compressed between the top wall portion 4b of the adapter body 4 and the upper end surface 2a of the container body 2 can be reduced.

  Moreover, when the annular convex portion 8 is formed on the first surface 11 of the plate-shaped portion 10 and the annular convex portion 8 of the elastic member 5 is attached to the container body 2 when the drinking spout adapter 3 is attached to the top wall portion 4 b of the adapter body 4. To the upper wall 4b prior to the other portion of the plate-shaped portion 10 by positively adhering to the upper wall 4b. It is possible to reduce the possibility that the adhesiveness between the two will be different. Therefore, the seal can be formed between the adapter body 4 and the elastic member 5 in a sufficiently stable manner without depending on the individual difference of the drinking tap adapter 3.

  In the illustrated example, as can be understood from FIG. 4, the annular convex portion 8 is arranged along the corner portion that becomes the connecting portion 4e between the peripheral wall portion 4a and the top wall portion 4b of the adapter body 4. As a result, the arrangement of the annular protrusions 8 is stable, and a stable seal can be formed.

  Further, in the illustrated example, as understood from FIG. 4, at least a part of the annular convex portion 8 is located on the annular upper end surface 2 a of the container body 2. Further, when viewed in the direction from the top wall portion 4b of the adapter body 4 toward the plate-shaped portion 10 (vertical direction), the width 8w of the annular convex portion 8 is smaller than the width 2w of the upper end surface 2a of the container body 2. Thus, when the drinking spout adapter 3 is attached to the container body 2, the annular convex portion 8 reduces the volume of the elastic member 5 compressed between the top wall portion 4b of the adapter body 4 and the upper end surface 2a of the container body 2. It can be effectively reduced as compared with the case where it is not provided. In addition, when the drinking spout adapter 3 is attached to the container body 2, the annular convex portion 8 is positively brought into close contact with the top wall portion 4b of the adapter main body 4 (that is, the annular convex portion 8 is different from the plate-shaped portion 10). It is possible to effectively realize that it is brought into close contact with the ceiling wall portion 4b prior to the portion).

  In the illustrated example, the annular convex portion 8 is formed integrally with the plate-shaped portion 10 and projects from the first surface 11 of the plate-shaped portion 10. Since the annular convex portion 8 is thus supported by the plate-shaped portion 10, it is possible to prevent the annular convex portion 8 from being twisted, and to stabilize the arrangement of the annular convex portion 8. Therefore, a stable seal can be formed between the annular protrusion 8 and the adapter body.

  Further, the annular upper end surface 2a of the container body 2 is connected to the annular first upper end surface 2b facing the ceiling wall portion 4b of the adapter body 4 and the annular first upper end surface 2b from the outside or the inside, and And an annular second upper end surface 2c inclined with respect to the wall portion 4b. The annular first upper end surface 2b of the upper end surface 2a of the container body 2 is attached to the plate-shaped portion 10 of the elastic member 5 prior to the annular second upper end surface 2c when the drinking spout adapter 3 is attached to the container body 2. When in contact with each other, the plate-shaped portion 10 is compressed to form a seal with the elastic member 5. This can also reduce the force for attaching the drinking spout adapter 3 to the container body 2. This is because the annular upper end surface 2a of the container main body 2 is compressed between the top wall portion 4b of the adapter main body 4 and the upper end surface 2a of the container main body 2 as compared with the case where all of the annular upper end surface 2a faces the top wall portion 4b. This is because the volume of the elastic member 5 can be reduced.

  In the illustrated example, the second upper end surface 2c is connected to the first upper end surface 2b from the outside thereof, and has an annular upper end surface 2a with respect to an opening surface (a surface surrounded by an annular end surface) defined by the container body 2. Is inclined downward in the vertical direction of the container body 2 toward the outside. As a result, it becomes possible to press the annular convex portion 8 toward the corner that becomes the connecting portion 4e between the top wall portion 4b and the peripheral wall portion 4a. This also makes it possible to stabilize the arrangement of the annular protrusions 8 and form a stable seal between the annular protrusions 8 and the adapter body 4.

  Further, as well shown in FIG. 4, the annular convex portion 8 is located outside the first upper end surface 2b (that is, outside the upper end edge 2d of the second upper end surface 2c). Accordingly, it is possible to more effectively realize that the annular convex portion 8 is pressed toward the corner portion that becomes the connecting portion 4e between the top wall portion 4b and the peripheral wall portion 4a. Therefore, the arrangement of the annular protrusion 8 can be effectively stabilized, and a more stable seal can be formed between the annular protrusion 8 and the adapter body 4.

  According to the embodiment described above, the beverage container 1 is attached so as to at least partially close the cylindrical container body 2 having one end opened and the other end closed, and the drinking mouth And a mouthpiece adapter 3 that forms a. The drinking spout adapter 3 has an adapter body 4 attached to the container body 2 and an elastic member 5 held by the adapter body 4. The elastic member 5 includes a first surface 11 that contacts the adapter body 4 and forms a seal portion, and a second surface that is provided opposite to the first surface 11 and that contacts the end surface of the container body 2 to form a seal portion. 12 is included. The first surface 11 is provided with an annular convex portion 8 that is pressed against the adapter body 4 when the adapter body 4 is attached to the container body 2.

  According to such a beverage container 1, the volume of the elastic member 5 that is crushed when the drinking mouth adapter 3 is attached to the container body 2 can be reduced, and the force for attaching the drinking mouth adapter 3 to the container body 2 can be reduced. Can be reduced. Further, since the annular convex portion 8 of the elastic member 5 can be positively brought into close contact with the adapter main body 4 when the drinking spout adapter 3 is attached to the container main body 2, depending on individual differences between the adapter main body 4 and the elastic member 5, the both It is possible to reduce the possibility that the adhesiveness will differ. Therefore, it is possible to form a seal between the adapter body 4 and the elastic member 5 in a sufficiently stable manner without depending on the individual difference of the drinking tap adapter 3. As described above, according to the beverage container 1, the force required to attach the drinking spout adapter 3 to the container body 2 while forming a sufficiently stable seal without depending on the individual difference of the drinking spout adapter 3. Can be reduced and the handling property of the beverage container 1 can be improved.

  In one specific example described above, the adapter body 4 has a cylindrical peripheral wall portion 4a and a ceiling wall portion 4b connected over the entire length of the peripheral wall portion 4a. And the annular convex part 8 is arrange|positioned along the connection part 4e of the top wall part 4b and the surrounding wall part 4a. As a result, the annular convex portion 8 is arranged along the corner that serves as the connecting portion 4e between the top wall portion 4b and the peripheral wall portion 4a, and the arrangement of the annular convex portion 8 can be stabilized. As a result, a stable seal can be formed between the annular convex portion 8 and the adapter body 4.

  In one specific example described above, the end surface 2a of the container body 2 has an inclined surface (second upper end surface) 2c that is inclined downward toward the outside with respect to the opening surface defined by the container body 2. . As a result, the annular convex portion 8 can be pressed toward the corner that becomes the connecting portion 4e between the top wall portion 4b and the peripheral wall portion 4a, and the arrangement of the annular convex portion 8 can be effectively stabilized. As a result, a stable seal can be effectively formed between the annular convex portion 8 and the adapter body 4.

  In the above-mentioned specific example, the annular convex portion 8 is located outside the upper edge 2d of the inclined surface (second upper end surface) 2c. As a result, it is possible to effectively realize that the annular convex portion 8 is pressed toward the corner portion serving as the connecting portion 4e between the top wall portion 4b and the peripheral wall portion 4a to stabilize the arrangement of the annular convex portion 8. it can. Then, a stable seal can be effectively formed between the annular convex portion 8 and the adapter body 4.

  In one specific example described above, the adapter body 4 has a cylindrical peripheral wall portion 4a and a ceiling wall portion 4b connected over the entire length of the peripheral wall portion 4a. The elastic member 5 includes a plate-shaped portion 10 that extends along the top wall portion 4b, and the annular convex portion 8 is integrally formed with the plate-shaped portion 10 and protrudes from the plate-shaped portion 10. By supporting the annular convex portion 8 on the plate-shaped portion 10, it is possible to prevent the annular convex portion 8 from being twisted, and to stabilize the arrangement of the annular convex portion 8. Thereby, a stable seal can be formed between the annular convex portion 8 and the adapter body 4.

  In one specific example described above, a hole (mounting hole) 4h is formed in the top wall portion 4b of the adapter body 4. Further, the elastic member 5 has a drinking mouth portion 20 that is integrally formed with the plate-shaped portion 10 to form the drinking mouth portion 20. Then, the drinking spout 20 passes through a hole 4h provided in the top wall 4b of the adapter body 4. By integrally forming the respective parts 10 and 20 having different functions in this way, it is possible to reduce the number of parts of the beverage container 1 and improve handleability at the time of cleaning and the like. In addition, it is possible to easily assemble the parts 10 and 20 to the adapter body 4.

  In one specific example described above, the beverage container 1 further includes an openable/closable cap 6 that covers the drinking spout in the closed state. By covering the drinking spout 20 with the cap 6, the drinking spout 20 can be kept hygienic.

  Alternatively, according to the embodiment described above, the cap assembly is a cap assembly attached to the container body 2, the cap assembly being attached to at least partially close the opening of the container body 2, The mouthpiece adapter 3 is formed. The drinking spout adapter 3 has an adapter body 4 attached to the container body 2 and an elastic member 5 held by the adapter body 4. The elastic member 5 contacts the adapter body 4 to form a seal portion, and the elastic member 5 contacts the end surface 2a of the container body 2 that is provided to face the first surface 11 and forms a seal portion. The first surface 11 is provided with an annular convex portion 8 that is pressed against the adapter body 4 when the adapter body 4 is attached to the container body 2.

  According to such a cap assembly, the volume of the elastic member 5 that is crushed when the drinking spout adapter 3 is attached to the container body 2 can be reduced, and the force for attaching the drinking spout adapter 3 to the container body 2 can be reduced. Can be reduced. Further, since the annular convex portion 8 of the elastic member 5 can be positively brought into close contact with the adapter main body 4 when the drinking spout adapter 3 is attached to the container main body 2, depending on the individual differences of the adapter main body 4 and the elastic member 5, both It is possible to reduce the possibility that the adhesiveness will differ. Therefore, the seal can be formed between the adapter body 4 and the elastic member 5 in a sufficiently stable manner without depending on the individual difference of the drinking tap adapter 3. As described above, according to the cap assembly described above, the force required to attach the drinking mouth adapter 3 to the container body 2 while forming a sufficiently stable seal without depending on the individual difference of the drinking mouth adapter 3. Can be reduced and the handling property of the beverage container 1 can be improved.

  Although one embodiment has been described with a plurality of specific examples, these specific examples are not intended to limit the one embodiment. The above-described embodiment can be implemented in various other specific examples, and various omissions, replacements, and changes can be made without departing from the scope of the invention. For example, the shape of the drinking spout 20 is not limited to that shown in the drawing, and various forms are possible. Also. The annular convex portion 8 may be separate from the plate-shaped portion 10.

DESCRIPTION OF SYMBOLS 1 Beverage container 2 Container body 2a Upper end surface 3 Drinking mouth adapter 4 Adapter body 4a Peripheral wall part 4b Top wall part 4e Connection part 5 Elastic member 6 Cap 7 Straw 8 Annular convex part 10 Plate part 11 1st surface 12 2nd surface 20 Drinking part 30 Straw receiving part

Claims (8)

A cylindrical container body opened at one end and closed at the other end,
A spout adapter mounted to at least partially close the opening and forming a spout;
The drinking spout has an adapter body attached to the container body, and an elastic member held by the adapter body,
The elastic member is in contact with the adapter body to form a seal portion, and the elastic member is provided so as to face the first surface and is in contact with an end surface (annular of the tubular portion) of the container body to form the seal portion. And a second surface to be formed, and the first surface is provided with an annular convex portion that is pressed against the adapter body in a state where the adapter body is attached to the container body. The adapter body has a cylindrical peripheral wall portion and a ceiling wall portion connected over the entire length of the peripheral wall portion,
The beverage container according to claim 1, wherein the annular convex portion is arranged along a connecting portion between the ceiling wall portion and the peripheral wall portion.   The beverage container according to claim 1 or 2, wherein an end surface of the container body has an inclined surface that is inclined downward toward the outside with respect to an opening surface defined by the container body.   The beverage container according to claim 3, wherein the annular convex portion is located outside an upper edge of the inclined surface of the container body. The adapter body has a cylindrical peripheral wall portion, and a ceiling wall portion connected over the entire length of the peripheral wall portion,
The elastic member includes a plate-shaped portion that extends along the top wall portion, and the annular convex portion is integrally formed with the plate-shaped portion and protrudes from the plate-shaped portion. The beverage container according to claim 1. A hole is formed in the top wall portion of the adapter body,
The elastic member has a drinking mouth portion that is integrally formed with the plate-like portion to form the drinking mouth,
The beverage container according to claim 5, wherein the drinking mouth portion passes through the hole provided in the top wall portion of the adapter body.   The beverage container according to claim 1, further comprising an openable/closable cap that covers the drinking opening in a closed state. A cap assembly attached to the container body,
A mouthpiece adapter mounted to at least partially close the opening of the container body to form a mouthpiece,
The mouthpiece adapter has an adapter body attached to the container body, and an elastic member held by the adapter body,
The elastic member has a first surface that contacts the adapter body to form a sealing portion, and a second surface that faces the first surface and that contacts the end surface of the container body to form a sealing portion. And a cap assembly, wherein the first surface is provided with an annular protrusion that is pressed against the adapter body when the adapter body is attached to the container body.

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