JP6459534B2 - Beverage container - Google Patents

Description

  The present invention relates to a beverage container and relates to a sealing structure of a stopper body of a beverage container that can be opened and closed with a single push.

  Conventionally, beverage containers such as portable stainless steel bottles that carry beverages such as cold water, hot water, and coffee are known. For example, such a beverage container has a double-vacuum structure for the container body into which beverages are placed, in order to insulate it, and the opening of the stopper body that closes the opening of the container body is made one-push to facilitate its opening. ing.

  Such a beverage container is provided with a sealing member between the opening of the container body and the stopper body, and seals the liquid in the container body so that it does not leak when the stopper body is closed.

  As such a seal member, a flat plate-shaped donut-shaped seal member is conventionally known. However, such a seal member has a flatness at the upper end of the opening portion, and a screw with a large pitch is provided obliquely. The plug body is difficult to level when closed. As a result, it is difficult to make the opening of the container main body uniformly contact the entire lower surface of the seal member, and it is difficult to remove it during cleaning (see Patent Document 1).

  FIG. 10 has been proposed as a sealing member for eliminating the above-described adverse effects. FIG. 10A shows a cross-sectional view of the plug body, and FIG. 10B shows an enlarged cross-sectional view of the seal member. As shown in the figure, the plug body 1 includes an inner plug 2 and an inner plug cover 3. The inner plug 2 is a resin member having a drinking mouth 4 extending upward from the upper surface and an outer cylindrical portion 5 that hangs downward and has an internal thread 5a formed on the inner peripheral surface. The lower part communicates with the drinking mouth 4 and communicates with the inside of the container body 15, and the inner cylindrical part 6 having a shorter length than the outer cylindrical part 5 hangs downward, and the outer cylindrical part 5 and the inner cylindrical part 6 Between them, there is a ring-shaped recess 7 which is open downward to which the seal member 10 is attached.

  Further, the side wall surface of the inner plug 2 has a lock button 8, and when the lower end of the lock button 8 is pushed inward, the inner plug cover 3 rotates to the hinge portion 9 side by the spring action of the hinge portion 9. Then, the drinking mouth 4 is opened.

  The seal member 10 includes a water stop protrusion 11, a lower extension 12, and an inward extension surface 13. The water stop protrusion 11 is located at the upper end of the seal member 10 and projects outward, and a groove 14 is formed in a ring shape from the outside to the inside at the center, and the upper protrusion is vertically 11a and a lower protrusion 11b.

  The lower extension portion 12 is a cylindrical portion that hangs downward from the water stop protrusion 11, and an inner peripheral surface thereof abuts on an outer peripheral surface of the inner cylindrical portion 6. The inwardly extending surface 13 is a ring-shaped portion that extends inward from the lower end of the lower extending portion 12. When the sealing member 10 is attached to the recessed portion 7, the pushing portion and when the sealing member 10 is removed from the recessed portion 7. Used as a grab for.

  When the seal member 10 is attached to the recess 7, the upper surface of the upper protrusion 11 a comes into contact with the upper wall surface of the recess 7, and the lower surface of the lower protrusion 11 b has a container as shown by a broken line in FIG. The opening 16 at the upper end of the main body 15 abuts and the opening 16 is sealed in a state where the lower protrusion 11b is deformed upward.

  By the way, even if the lower protrusion 11b is deformed as described above and seals the opening 16, the sealing member 10 has the groove 14 in the water stop protrusion 11 to form the lower protrusion 11b. In addition, the thickness of the lower protrusion 11b is thin, and the restoring force for returning to the original state after deformation is very small. Therefore, at the time of closing, the lower protruding portion 11b is pressed against the lower surface of the upper protruding portion 11a in a state where the groove 14 is substantially eliminated, and functions as a sealing member integrated with the upper protruding portion 11, for example, the sealing member of Patent Document 1 above It is understood that it has the same function as.

  That is, the conventional example shown in FIG. 10 has the same adverse effect as the above-mentioned Patent Document 1, that is, the flatness of the upper end of the opening and the screw with a large pitch are provided obliquely, so that the plug body at the time of closing becomes horizontal. Due to difficulty, the opening of the container main body is difficult to be brought into uniform contact with the entire lower surface of the lower protrusion 11b.

  Further, the seal member 10 is essential to provide the groove 14 in the water stop protrusion 11 to form the lower protrusion 11b and to provide the inwardly extending surface 13, and the structure becomes complicated. In addition, there is an adverse effect that the production cost increases (see Patent Document 2).

Japanese Patent No. 3937428 Japanese Patent No. 4941902

  An object of the present invention is to provide a beverage container sealing structure that has a simple structure, a high sealing force after deformation, and a uniform seal.

  In order to achieve the above object, the present invention adopts the following configuration.

In the invention according to claim 1, a container body, a plug body that is detachably attached to the opening of the container body, and a water stop between the opening and the stopper body that is detachably attached to the stopper body. A beverage container having a sealing member, the sealing member having a cylindrical main body portion and a bowl-shaped flange portion, and an inner peripheral surface of the main body portion having a hollow portion. The flange portion projects downward from the upper end of the main body portion and outward from the outer peripheral surface at a position facing the cavity portion, and the flange portion opens on the lower surface between the root portion and the distal end portion. An abutting portion with which an upper end of the opening abuts , and when the plug body is closed, the abutting portion is pushed by the upper end of the opening and moves upward to contact the upper end of the opening in a deformed state the tip abuts the plug body said moves upward with the movement over the abutment in a deformed state The configuration of the water shut-off between the plug body and the opening.

In the invention according to claim 2, the container main body, the plug main body detachably attached to the opening of the container main body, and the water stop between the opening and the plug main body detachably attached to the plug main body. A beverage container having a sealing member, the sealing member having a cylindrical main body portion and a bowl-shaped flange portion, and an inner peripheral surface of the main body portion having a hollow portion. The flange portion projects below the upper end of the main body portion and outward from the outer peripheral surface at a position facing the cavity portion, and the flange portion has an upper thick portion and a lower thick portion, when plugging the plug body, the lower thick portion, the pressed at the upper end of the opening is in contact with the upper end of the opening in the deformed state upward movement, the upper thick portion, the lower thick portion contact, the plug body and the opening in the plug body in the upward movement to the deformed state with the the upward movement Configuration in which the water shut-off between.

In the invention according to claim 3 , in addition to the structure of the invention according to claim 1 or 2 , the plug body has a heat insulating space sealed by a cover member.

  A hollow part is formed on the inner peripheral surface of the main body part of the seal member, and a flange part is provided on the outer peripheral surface at a position opposite to the hollow part, so that when the plug body is closed, the main body part near the cavity part is also deformed together with the flange part. Therefore, the degree of freedom of movement of the flange portion can be increased, and the sealing force that is a restoring force after deformation can be increased. In addition, the hollow portion is pushed and bent inward at the time of closing, but the function of adsorbing the inner plug is generated by the restoring force to return to the original state, and as a result, the sealing member can be hardly detached from the inner plug. Furthermore, the structure of the seal member can be simplified and the production cost can be reduced.

  Moreover, a sealing part can be heightened more by providing a thick part in a flange part, or lengthening the length of a flange part and pinching a flange part with an opening part and an inside plug.

The perspective view which looked at the stopper main body (A) of the container for drinks, and the isolate | separated sealing member (B) from diagonally upward The perspective view which looked at the stopper main body (A) of the container for drinks, and the isolate | separated sealing member (B) from diagonally downward Sectional view of the main part of the beverage container Section A enlarged sectional view of FIG. 3 (state diagram just before closing the plug body) Part A enlarged sectional view of FIG. 3 (schematic state diagram when the plug body is closed) Partial sectional view of another seal member Figure corresponding to FIG. 5 using another sealing member Furthermore, a partial cross-sectional view of another seal member Further, a view corresponding to FIG. 5 using another seal member Sectional view of conventional plug body (A) and seal member (B)

  1 and 2 are perspective views of the stopper body and the sealing member of the present invention, FIG. 3 is a sectional view of the stopper body portion of the beverage container, and FIGS. 4 and 5 are states of the sealing member when the stopper body is attached. Examples of other seal members are shown in FIGS.

  The beverage container of the present invention may be anything as long as it contains a beverage, and will be described below using a portable, one-push open metal bottle, such as a stainless steel bottle. In addition, let the hinge part side be a back side, and let the other side (drinking side) of a hinge part be a front side.

  As shown in FIG. 3, the stainless bottle S has a container body 20 and a plug body 30. The container body 20 has an inner case 21 and an outer case 22. The inner case 21 is a container-like stainless steel member having an opening 23 to which the plug body 30 is attached and detached at the upper part.

  The outer case 22 is a container-shaped stainless steel member having an open top, and the upper part is squeezed, and the upper end of the outer case 22 is welded and integrated with the upper end of the inner case 21. An inner space 25 is provided between the inner case 21 and the outer case 22, and the inner space 25 is evacuated to form a vacuum double structure having high heat retention.

  Further, the upper outer peripheral surface of the outer case 22 has a male screw 24, and a female screw 33 a formed on the plug body 30 is screwed into the male screw 24 to close the opening 23.

  In addition, the container main body 20 may be formed by three members of the bottom case and the inner case 21 (not shown) having a cylindrical shape as the outer case 22, and further, the container main body 20 is formed only by the outer case 22. It may be a thing.

  The plug main body 30 is a resin member having an inner plug 31 and an inner plug cover 45, and FIG. 1 and FIG. 2 show an overall perspective view and FIG. 3 shows a cross-sectional view.

  The inner plug 31 is a resin member that is screwed into the outer peripheral surface of the opening 23 of the container body 20. The inner wall 31 is substantially circular in plan view and substantially horizontal, and is below the outer peripheral end of the upper wall 32. A lower opening having an outer cylindrical portion 33 which is a first cylindrical portion depending on the upper portion and a drinking mouth 34 which extends upward from the front side of the upper wall portion 32 and penetrates the upper wall portion 32 vertically. It is the resin member integrally formed by cap shape.

  On the lower surface of the upper wall portion 32, an inner cylindrical portion which is a second cylindrical portion which is concentrically located inside the first cylindrical portion 33 and is smaller in diameter and lower in height than the outer cylindrical portion 33. 35 hangs down, and between the outer cylindrical portion 33 and the inner cylindrical portion 35, there is a ring-shaped recess 36 in a plan view in a downward opening that is recessed upward to which a later-described seal member 55 is attached.

  Further, when an attached seal member 55 is removed at an appropriate place of the inner cylindrical portion 35, for example, the front side having no later-described stopper internal space 39, for example, a pointed removal member (a member such as a thousand pieces) ) Is inserted and the upper end portion of the seal member 55 is pushed downward to be removed to have a rectangular cutout 37 (see FIG. 2A). By providing such a notch 37, the sealing member 55 can be easily removed.

  For example, a projection 38 having a triangular cross-section is hanging downward and in a ring shape slightly inward from the center in the left-right direction of the bottom surface 36a of the recess 36. As shown in FIG. 38, a seal member 55 is attached. By attaching the seal member 55 in such a form, the movement of the seal member 55 in the left-right direction can be restricted. The shape of the protrusion 38 may be other shapes, for example, a rectangular cross section, a taper shape, an arc shape, or the like. Further, the protrusion 38 may not be provided.

  The outer cylindrical portion 33 has an internal thread 33a on the inner peripheral surface thereof, and the internal thread 33a is screwed to the external thread 24 on the outer periphery of the upper end of the container main body 20 so that the opening 23 of the container main body 20 is connected to the plug main body 30. The sealing member 55 is plugged.

  An area below the upper wall 32, which is surrounded by the upper wall 32 on the upper side and surrounded by the inner cylindrical part 35 and the drinking mouth 34 on the side. An internal space 39 is provided. A cover member 40 having a substantially heart shape in plan view is also integrally attached to the lower portion of the plug inner space 39 by, for example, ultrasonic welding or the like, and the plug inner space 39 is used as a sealed heat insulating space.

  The internal space 39 that is a heat insulating space is provided in almost the entire area excluding the area in the vicinity of the drinking mouth 34 of the main body 30, and the heat of the liquid put in the container main body 20 escapes from the main body 30. To reduce.

  The inner plug cover 45 is a resin member having a circular shape on the front side and a square shape on the rear side in a plan view having a smaller area in plan view than the inner plug 31, and a hinge portion 46 including a spring and a hinge shaft on the rear side. And a locking claw 48 with which the locking means 50 is engaged.

  A mushroom-like packing 49 is attached to the upper wall surface of the inner stopper cover 45 in an inverted state. When the inner stopper cover 45 is closed, the outer peripheral portion of the bottom surface of the packing 49 comes into contact with the upper end of the drinking mouth 34, Sealing is performed so that the liquid in the container body 20 does not leak.

  Locking means 50 is provided on the front side wall surface of the inner plug 31. The lock means 50 includes a lock button 51 having a locking piece 51a protruding inward at the upper end, a shaft 52 integral with the lock button 51, and a spring 53 engaged with the shaft 52 (see FIG. 3). .

  When the locking means 50 is attached to the inner plug 31, a force that rotates clockwise around the shaft 52 is applied to the lock button 51, and when the inner plug cover 45 is closed, the inner plug cover 45 is moved forward and downward. The locking claw 48 positioned engages with the locking piece 51a of the lock button 51 to hold the inner plug cover 45 in the closed state.

  When the lower portion of the lock button 51 is pushed inward, the locking piece 51a is rotated counterclockwise, that is, forward, to release the engagement with the locking claw 48. As a result, the inner plug cover 45 is rotated clockwise, that is, rearward by the spring action of the hinge portion 46 to open the drinking mouth 34.

  The seal member 55 is a ring-shaped member made of, for example, silicone rubber, in which the main body portion 56 and the flange portion 57 are integrally formed. FIGS. 1B and 2B are perspective views of the whole.

  The main body 56 is generally cylindrical and part of the longitudinal section has a vertically long rectangular shape. The main body 56 may have another cross-sectional shape such as an ellipse.

  The inner peripheral surface of the main body portion 56 has a hollow portion 58 having a circular arc shape that is recessed outward. As long as the upper end of the hollow portion 58 is below the upper end of the main body portion 56 and the lower end is higher than the lower end of the main body portion 56, the hollow portion 58 may be at any position on the inner peripheral surface of the main body portion 56. Is located at the center of the main body 56. The shape of the cavity 58 may be other than an arc shape, for example, a rectangular shape, an elliptical shape, a triangular shape, a curved shape, or the like.

  The flange portion 57 is a bowl-like portion that projects horizontally outward from the outer peripheral surface of the main body portion 56, and is entirely ring-shaped, with a part of the longitudinal section being a horizontally long rectangular shape (a horizontally long triangular shape). Or a horizontally long trapezoidal shape). The position where the flange portion 57 protrudes from the outer peripheral surface of the main body portion 56 may be anywhere below the upper end of the main body portion 56, but if it is too high, most of the upper surface of the flange portion 57 abuts against the bottom surface 36a of the recess. There is a risk that the desired effect of the present invention will not be achieved.

  Therefore, the position below the position where such a harmful effect occurs, for example, the length in the vertical direction of the main body portion 56 is preferably lower than the position approximately 1/3 below the upper end. The position below the position is preferred. In this example, it is provided at the center of the outer peripheral surface as shown in FIG.

  Further, the position where the flange portion 57 protrudes from the main body portion 56 is a position facing the cavity portion 58 of the main body portion 56. In addition, in the cross-sectional view of FIG. 4, the facing position means that when a horizontal line passing through the center of the vertical width of the flange portion 57 is drawn toward the main body portion 56, the line is It is a position that crosses any part.

  In FIG. 4, when a horizontal line passing through the center of the vertical width of the flange portion 57 is drawn toward the main body portion 56, the line intersects the center of the cavity portion 58. That is, the center of the cavity 58 is formed to be the center in the vertical direction of the inner peripheral surface of the flange portion 57.

  The inner diameter of the seal member 55, that is, the inner diameter of the main body portion 56 is the same as or slightly smaller than the outer diameter of the inner cylindrical portion 35, and the seal member 55 is attached by placing the plug body 30 in the reverse direction. The seal member 55 is attached so as to be pushed into the recess 36 of the 30 from above.

  When the seal member 55 is attached in the recess 36, the upper end of the main body portion 56 is in contact with the recess bottom surface 36 a and is positioned so as to be sandwiched between the inner cylindrical portion 35 and the protrusion 38. That is, the inner peripheral surface of the main body portion 56 abuts on the outer peripheral surface of the inner cylindrical portion 35, and the flange portion 57 horizontally protrudes outward in the concave portion 36 toward the outer cylindrical portion 33 ( (See FIG. 4).

  When the seal member 55 is removed from the recess 36, a tip of a thousand sheets is inserted into the notch 37 formed in the inner cylindrical portion 35, and the upper end of the seal member 55 is positioned downward, that is, in the direction opposite to the recess bottom surface 36a. It will be pushed out and removed.

  When the female thread 33a of the stopper main body 30 is screwed into the male screw 24 on the outer periphery of the container main body 20 and the opening 23 of the container main body 20 is closed with the stopper main body 30, the upper end of the opening 23 is immediately closed as shown in FIG. Is in contact with the vicinity of the central portion of the lower surface of the flange portion 57.

  Therefore, when the plug body 30 is further rotated, the schematic state when the plug is closed as shown in FIG. 5 is obtained. That is, at the time of plugging, the flange portion 57 is pushed upward at the upper end of the opening portion 23, and the flange portion 57 on the main body portion 56 side from the position where the upper end of the opening portion 23 abuts is substantially directed from the root toward the abutting portion. It bends in a substantially L shape having a horizontal portion and a substantially vertical portion, and the lower surface of the substantially vertical portion has a predetermined length r in the vertical direction on the inner peripheral surface of the opening 23 (that is, the upper inner peripheral surface of the inner case 21). The flange portion 57 on the distal end side from the position where the upper end of the opening 23 abuts is in a substantially arcuate deformed state in which the distal end slightly hangs down.

  As a result, a strong restoring force that the flange portion 57 tries to return acts on the upper end of the opening 23 and the inner peripheral surface below the opening 23, and there are slight irregularities on the upper end of the opening 23 and the inner peripheral surface. In addition, a uniform and strong sealing force acts on the upper end of the opening 23 and the inner peripheral surface below the opening 23. If a seal only at the upper end of the opening 23 is sufficient, the lower surface of the substantially vertical part and the inner peripheral surface of the opening 23 do not have to enter and contact.

  By the way, since the sealing member 55 of the present invention is provided with the cavity portion 58 that is recessed outward on the inner peripheral surface of the main body portion 56, the top portion corresponding to the outermost portion of the cavity portion 58 and the flange portion 57. Since the width d between the base and the base portion 56 is shorter than the width D in the left-right direction of the main body portion 56 (see FIG. 5), the portion in the vicinity of the width d is easily deformed when receiving a force. As a result, the degree of freedom of movement of the flange portion 57 increases accordingly.

  As a result, when the plug of FIG. 5 is closed, the flange portion 57 is mainly deformed upward, and the vicinity of the width d of the main body portion 56 is mainly subjected to an inward force as indicated by an arrow, and is indicated by a broken line. It deforms from the shape before deformation shown to the shape after deformation shown by the solid line. Therefore, as described above, the shape from the root of the flange portion 57 to the position where the upper end of the opening 23 abuts is a shape that is bent into a substantially L shape having a substantially horizontal portion and a substantially vertical portion. That is, since the hollow portion is mainly pushed inward and bent at the time of closing, the flange portion 57 can be deformed into the above shape and sealed.

  The deformation amount and the restoring force of the flange portion 57 after closing are increased in comparison with the case of the flange portion 57 alone (for example, the one shown in FIG. 10), including that of the main body portion 56. That is, the force with which the flange 57 abuts on the upper end of the opening 23 and the inner peripheral surface below the opening 23, that is, the sealing force for sealing the opening 23 is further increased, and the uniform sealing effect of the opening 23 is improved. To do.

  That is, the flange portion 57 comes into contact with the upper end of the opening portion 23 and the inner peripheral surface below the opening portion 23 by its own restoring force and the restoring force of the main body portion 56, and the flange portion 57 seals the opening portion 23. The force is more uniform and increased than that of the conventional FIG. In addition, even if it is a seal | sticker only of the upper end of the opening part 23, a sealing force increases from the thing of FIG.

  As described above, the inner peripheral surface of the main body portion 56 abuts on the outer peripheral surface of the inner cylindrical portion 35 and the cavity portion 58 is positioned on the outer peripheral surface of the inner cylindrical portion 35 when the plug is closed. Then, a suction function is generated in the hollow portion 58 and acts to stick the main body portion 56 to the inner cylindrical portion 35, thereby making it difficult for the seal member 55 to be detached from the inner cylindrical portion 35. Thus, the cavity 58 has the function of increasing the sealing force and the function of reducing the detachment of the seal member 55.

  Further, the presence of the hollow portion 58 makes it easier for the flange portion 57 to enter the inside of the inner case 21 while being bent, and as a result, the lower end of the outer cylindrical portion 33 of the inner plug 31 and the outer peripheral surface of the outer case 22. The gap S (see FIG. 3) can be reduced, and the appearance can be improved.

  In the above case, the main body 56 can be further stabilized by providing the protrusion 38 in the recess 36 and sandwiching the upper end of the main body 56 between the inner cylindrical portion 35 and the protrusion 38. However, the protrusion 38 may not be provided.

  6 and 7 show other examples of the seal member. In this example, the upper thick portion 60 and the lower thick portion 61 are integrally formed on the flange portion 57 of the seal member 55, and the flange portion 57 is sandwiched between the opening portion 23 and the recess bottom surface 36a. 4 and 5 are the same as those in FIGS. 4 and 5, and are denoted by the same reference numerals, and different parts are mainly described and detailed description thereof is omitted.

  That is, the seal member 55 is a ring-shaped member made of, for example, silicone rubber, in which the main body portion 56 and the flange portion 57 are integrally formed.

  The main body 56 is generally cylindrical and part of the longitudinal section has a vertically long rectangular shape. And the inner peripheral surface has a cavity 58 having a circular arc cross section. The hollow portion 58 may be located at any position on the inner peripheral surface of the main body portion 56, but FIG. 6 shows what is provided in the central portion.

  The flange portion 57 is a bowl-shaped portion that extends horizontally outward from the outer peripheral surface of the main body portion 56, and is entirely ring-shaped, with a partly vertical section having a horizontally-long rectangular shape, and an upper portion of the flange portion 57. A trapezoidal upper thick part 60 is provided, and a substantially trapezoidal lower thick part 61 is provided at the lower part thereof.

  In the case of this example as well, the position of the outer peripheral surface of the main body portion 56 with which the flange portion 57 is integrally formed may be anywhere below the upper end of the main body portion 56 as in the case of FIGS. In the example, it is provided at the center of the outer peripheral surface as shown in FIG. Further, the upper thick portion 60 and the lower thick portion 61 may have other shapes such as a rectangular shape or an arc shape.

  When the seal member 55 is mounted in the recess 36, the upper end of the main body 56 is in contact with the bottom surface 36a of the recess and is positioned between the inner cylindrical portion 35 and the projection 38, The inner peripheral surface of 56 abuts on the outer peripheral surface of the inner cylindrical portion 35, and the flange portion 57 is positioned in a form of projecting horizontally inside the concave portion 36 toward the outer cylindrical portion 33.

  In the state of FIG. 7 in which the stopper body 30 is screwed into the container body 20 and closed, the lower thick portion 61 of the flange portion 57 moves upward while being deformed by being pushed upward at the upper end of the opening portion 23. . And the vicinity part of the above-mentioned width | variety d receives inward force, and deform | transforms inward.

  Furthermore, the upper thick portion 60 abuts on the concave bottom surface 36a, in this example, the concave bottom surface 36a including the protrusion 38. As a result, the upper end of the opening 23 is brought into contact with the flange 57 by receiving the restoring force of the main body 56 and the restoring force of the flange 57 as well as the repulsive force from the bottom surface 36a of the recess. The sealing force for sealing the portion 23 is more uniform and increased than that of FIG.

  In FIG. 7, the flange portion 57 is described as being in contact with the upper end of the opening portion 23, but in this example as well, the position where the upper end of the opening portion 23 is in contact with the root of the flange portion 57 as shown in FIG. 5. The above shape may be bent into a substantially L shape having a substantially horizontal portion and a substantially vertical portion, and sealed at the upper end of the opening 23 and the inner peripheral surface below the opening 23.

  FIG. 8 and FIG. 9 show still another example of the seal member. In this example, the length projecting outward of the flange portion 57 of the seal member 55 is increased (for example, as shown in FIG. 8, the length in FIG. The flange portion 57 is sandwiched between the opening 23 and the recess bottom surface 36a of the recess 36, and the other configurations are the same as those in FIGS. In addition, different parts and the like will be mainly described and detailed description will be omitted.

  That is, the seal member 55 is a ring-shaped member made of, for example, silicone rubber, in which the main body portion 56 and the flange portion 57 are integrally formed.

  The main body 56 is generally cylindrical and part of the longitudinal section has a vertically long rectangular shape. And the inner peripheral surface has a cavity 58 having a circular arc cross section. The hollow portion 58 may be located at any position on the inner peripheral surface of the main body portion 56, but FIG.

  The flange portion 57 is a bowl-shaped portion that extends horizontally outward from the outer peripheral surface of the main body portion 56. The entire flange portion 57 has a ring shape, and a part of the longitudinal section has a horizontally long rectangular shape and projects outward. The length is made longer than those in FIGS.

  Also in this example, the position of the outer peripheral surface of the main body portion 56 with which the flange portion 57 is integrally formed may be anywhere below the upper end of the main body portion 56 as in FIGS. 4 and 5. As shown in FIG. 8, it is provided at the center of the outer peripheral surface.

  When the seal member 55 is mounted in the recess 36, the upper end of the main body 56 is in contact with the bottom surface 36a of the recess and is positioned between the inner cylindrical portion 35 and the projection 38, The inner peripheral surface of 56 abuts on the outer peripheral surface of the inner cylindrical portion 35, and the flange portion 57 is positioned in a form of projecting horizontally inside the concave portion 36 toward the outer cylindrical portion 33.

  9, the bottom surface of the flange portion 57 is pushed upward at the upper end of the opening portion 23 and moves upward while being deformed. And the vicinity part of the above-mentioned width | variety d receives inward force, and deform | transforms inward.

  Further, a part of the upper surface of the flange portion 57, that is, the upper surface in the vicinity of the tip end portion is in contact with the concave bottom surface 36a, in this example, the concave bottom surface 36a including the protrusion 38. As a result, the upper end of the opening 23 is brought into contact with the flange 57 by receiving the restoring force of the main body 56 and the restoring force of the flange 57 as well as the repulsive force from the bottom surface 36a of the recess. The sealing force for sealing the portion 23 is still more uniform and increased than that of FIG.

  In addition, in FIGS. 8 and 9, the restoring force of the main body portion 56 and the restoring force of the flange portion 57 are formed at the upper end of the opening 23 by, for example, bringing a part of the flange portion 57 into contact with the bottom surface 36 a of the recess when closing. In contrast, the repulsive force from the recess bottom surface 36a is simultaneously applied to enhance the sealing effect, whereas in FIG. 10, almost all the portion corresponding to the flange portion 57 at the time of closing is a portion corresponding to the recess bottom surface 36a. From the portion corresponding to the bottom surface 36a, the restoring force of the portion corresponding to the body portion 56, the restoring force of the portion corresponding to the flange portion 57, and the recess bottom surface 36a. It does not increase the sealing effect by applying repulsive force simultaneously.

  In FIG. 9, the flange portion 57 is described as being in contact with the upper end of the opening portion 23, but in this example as well, the position where the upper end of the opening portion 23 is in contact with the root of the flange portion 57 as shown in FIG. 5. The above shape may be bent into a substantially L shape having a substantially horizontal portion and a substantially vertical portion, and sealed at the upper end of the opening 23 and the inner peripheral surface below the opening 23.

  The invention of the present application is not limited to the configuration of the above embodiment, and it is needless to say that the design can be appropriately changed without departing from the gist of the invention.

S Stainless Steel Bottle 20 Container Body 21 Inner Case 22 Outer Case 23 Opening 24 Male Screw 25 Internal Space 30 Plug Main Body 31 Middle Plug 32 Upper Wall Part 33 First Tubular Part 33a Female Screw 34 Drinking Port 35 Second Tubular Part 36 Recess 36a Recessed bottom surface 37 Notch 38 Projection 39 Plug inner space 40 Cover member 45 Inner plug cover 46 Hinge portion 48 Locking claw 49 Packing 50 Locking means 51 Lock button 51a Locking piece 52 Shaft 53 Spring 55 Seal member 56 Main body portion 57 Flange portion 58 Cavity 60 Upper thick part 61 Lower thick part

Claims (3)

A beverage body having a container body, a plug body detachably attached to the opening of the container body, and a seal member detachably attached to the stopper body and stopping water between the opening and the stopper body A container,
The seal member has a cylindrical main body portion and a flange-like flange portion,
The inner peripheral surface of the main body has a hollow portion,
The flange portion projects below the upper end of the main body portion and outward from the outer peripheral surface at a position facing the cavity portion,
The flange portion has an abutting portion with which the upper end of the opening abuts on the lower surface between the root portion and the tip portion,
When the plug body is closed, the contact portion is pushed up and moved upward by the upper end of the opening to contact the upper end of the opening in a deformed state, and the tip portion moves upward of the contact portion. The beverage container is characterized in that the beverage container is moved upward in contact with the stopper main body in a deformed state to stop water between the opening and the stopper main body. A beverage body having a container body, a plug body detachably attached to the opening of the container body, and a seal member detachably attached to the stopper body and stopping water between the opening and the stopper body A container,
The seal member has a cylindrical main body portion and a flange-like flange portion,
The inner peripheral surface of the main body has a hollow portion,
The flange portion projects below the upper end of the main body portion and outward from the outer peripheral surface at a position facing the cavity portion,
The flange portion has an upper wall thickness portion and a lower wall thickness portion,
When plugging the plug body, the lower thick portion, the pressed at the upper end of the opening is made in the deformed state abuts against the upper end of the opening upward, the upper thick portion, said lower wall thickness with the above movement of the part to contact with the plug body in the deformed state upward movement, beverage containers characterized in that the water shut-off between the plug body and the opening. The plug body, a beverage container according to claim 1 or claim 2 characterized in that it has a heat-insulating space is sealed by a cover member.

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