JP5970336B2 - Portable beverage container - Google Patents

Description

  The present invention relates to a portable beverage container that can be poured out without removing a stopper from the top of a container body.

  As a container for storing the liquid, a thermos bottle disclosed in Patent Document 1 has already been proposed (see). This thermos is formed with a flange projecting outward in the radial direction on the upper side of the lower mouth member fixed to the upper part of the container body. On the other side of the upper portion opposite to the collar portion of the lower opening member, a recess having a shape recessed in the radial direction is formed. In addition, on one side peripheral surface of the lid body that covers the upper portion of the container main body, a notch hole having a shape that allows the eaves to be exposed and coincides with the concave portion is formed.

  However, the above-described collar portion is formed in a size and shape that does not protrude outward from the outer periphery of the lower opening member. Moreover, the recessed part is formed in the shape which recessed the outer periphery on the opposite side to the collar part of a lower opening member. For this reason, not only the part corresponding to the collar part and the recessed part protrudes greatly inside the lower opening member, but the protruding part becomes an obstacle, and the opening part communicating with the inside of the lower container of the lower opening member, The diameter of the opening communicating with the lower opening member cannot be increased.

  Therefore, when the liquid stored in the middle container is poured out from the collar part of the lower mouth member, the container body is held in a posture where the collar part of the lower mouth member is on the near side, and the liquid is poured from the collar part. Even if it is inclined to the angle at which it is dispensed, the diameter of the lower mouth member and the middle container is small, so that the amount of liquid dispensed is limited to a small amount, and there is a problem that a desired amount of liquid cannot be dispensed. It was.

Japanese Utility Model Publication No. 57-87629

  An object of the present invention is to provide a portable beverage container that can be dispensed in a desired amount by an operation of tilting the container body without removing the stopper from the upper part of the container body.

  The present invention relates to a container main body having an opening in the upper part, a cylindrical lower mouth member fixed to the upper part of the container main body, and a plug body screwed to the lower mouth member so as to be rotatable. And a portable beverage container provided with a water-stopping packing for closing the opening communicating with the inside of the container body of the lower mouth member in the upper inner periphery of the lower mouth member, A drinking mouth that allows the liquid stored in the mouth to be poured out, and an upper part of the stopper includes an arcuate drinking hole projection hole that allows the drinking mouth to protrude upward, and the protrusion of the drinking mouth The hole is formed in the circumferential direction along the rotation direction of the stopper, and has the same radius of curvature as the upper portion of the lower mouth member having the drinking mouth.

According to the present invention, a desired amount can be poured out by an operation of tilting the container body without removing the stopper from the upper part of the container body.
Specifically, for example, the lid body is rotated in the opening direction (counterclockwise), and the liquid stored in the container body is poured from the collar portion of the lower mouth member exposed from the notch hole of the lid body. When taking out, the collar part is formed in the magnitude | size and shape which do not protrude outside from the outer periphery of a lower opening member. Further, the recess of the lower opening member that coincides with the notch hole of the lid is formed in a shape in which the outer periphery of the lower opening member is recessed. For this reason, not only the portion corresponding to the flange and the concave portion protrudes greatly to the inside of the lower mouth member, but the protruding portion becomes an obstacle, the opening portion communicating with the inside of the container body of the lower mouth member, The aperture diameter of the opening communicating with the lower opening member cannot be increased.

  On the other hand, the portable beverage container of the present invention forms a drinking mouth that allows the liquid stored in the container body to be poured out on the upper inner periphery of the lower mouth member, and the arc shape allows the protrusion of the drinking mouth to be allowed. Are formed in the circumferential direction along the direction of rotation of the plug body, and have the same radius of curvature as the upper part of the lower mouth member, so that it protrudes inside the lower mouth member. The opening portion that communicates with the inside of the container body of the lower mouth member and the diameter of the mouth portion that communicates with the lower mouth member of the container body can be increased.

  Therefore, when the liquid stored in the container body is poured out from the drinking mouth of the lower mouth member, the container body is held in a posture where the drinking mouth of the lower mouth member is on the near side, and the liquid is poured from the drinking mouth. It is possible to dispense a desired amount of liquid corresponding to the diameter by simply tilting to the desired angle.

  As a result, when the portable beverage container is simply tilted to a desired angle in the opened state, a desired amount of liquid stored in the container body can be poured out from the drinking mouth of the lower mouth member according to the tilt angle. it can.

  As an aspect of the present invention, the upper portion of the lower mouth member on the opposite side to the drinking mouth has a size and shape substantially matching the drinking mouth protrusion hole, and the lower mouth member and the drinking mouth from the central portion. A drinking mouth closing portion that is inclined at a gradually decreasing angle toward the outer peripheral portion on the opposite side, and an upper portion corresponding to the drinking mouth protrusion hole of the stopper, and the drinking mouth protrusion hole from the central portion of the stopper A drinking mouth exposed portion that is inclined at a gradually decreasing angle toward the corresponding outer peripheral portion can be provided.

According to this invention, the protrusion amount of the drinking mouth of the lower mouth member protruding upward from the drinking mouth protrusion hole of the stopper can be further increased.
More specifically, for example, when the lid is rotated in the opening direction and the liquid is poured out from the collar of the lower mouth member exposed from the notch hole of the lid, the collar of the lower mouth member is Since it is formed in a size and shape that does not protrude outward from the outer periphery of the lower mouth member, it is necessary to ensure a protruding amount that is easy to drink simply by exposing the buttocks of the lower mouth member from the cutout hole of the lid. Is structurally difficult.

  On the other hand, when the portable beverage container of the present invention is operated so as to rotate the stopper in the opening direction and the drinking port of the lower member protrudes upward from the drinking hole protruding hole of the stopper, Since the drinking mouth protrudes further upward than the drinking mouth exposed portion of the stopper, for example, when the liquid is directly drinkable from the drinking mouth of the lower mouth member, it is possible to ensure a protruding amount that is easy to drink.

  In addition, when the stopper is turned in the closing direction (clockwise), the drinking hole projection hole of the stopper is turned to a position that coincides with the drinking hole blocking portion on the side opposite to the drinking hole of the lower opening member. Since the drinking hole protruding hole of the stopper engages with the drinking hole blocking portion of the lower opening member and the drinking hole protruding hole of the stopper is closed, for example, dust or insects enter from the drinking opening of the lower opening member. Can be prevented.

  Further, as an aspect of the present invention, the plug body is turned to a position where the drinking mouth of the lower mouth member and the drinking hole protruding hole of the plug body coincide with each other on the opposing peripheral surface of the lower mouth member and the plug body. A rotational position restricting means for restricting movement can be provided.

  Here, the rotational position regulating means described above includes, for example, a concave portion formed on one peripheral surface, a convex portion that engages with the concave portion formed on the other peripheral surface, a locking hole formed on one peripheral surface, A locking body biased in a direction to be engaged with the locking hole, or a contact portion formed on one peripheral surface, and a spring biased in a direction of contact with the corresponding contact portion Or the like.

According to this invention, when the plug body is rotated in the opening direction, the drinking hole protruding hole of the plug body can be restricted to a position that coincides with the drinking hole of the lower opening member.
More specifically, for example, when the lid is rotated in the opening direction and the liquid is poured out from the collar portion of the lower mouth member exposed from the notch hole of the lid, the lid is attached to the lower mouth member. Since the container body is merely screwed in a rotatable manner, the lid body is easy to turn in the circumferential direction when the container body is tilted at an angle at which the liquid is poured out from the collar portion of the lower mouth member. The position of the notch in the body and the collar portion of the lower mouth member may shift in the circumferential direction. For this reason, there is a possibility that the liquid poured out from the buttock hits the lid, and the dispensing is disturbed.

  On the other hand, the portable beverage container of the present invention rotates the plug body in the opening direction to move the drinking hole protruding hole of the plug body to a position coinciding with the drinking hole of the lower opening member, When the drinking port of the member protrudes upward from the drinking hole projection hole of the plug body, the rotation position restricting means restricts the rotation of the drinking hole projection hole of the plug body to a position coinciding with the drinking port of the lower mouth member.

  Accordingly, when the portable beverage container is tilted at an angle at which the liquid is poured out from the drinking mouth of the lower mouth member, the positions of the drinking mouth protrusion hole of the stopper and the drinking mouth of the lower mouth member are shifted in the circumferential direction. It is possible to prevent this, and the mouth of the lower mouth member can be kept protruding from the mouth opening of the stopper.

  As a result, the liquid stored in the container body can be smoothly poured out from the drinking mouth of the lower mouth member. For example, it is safe to drink liquid directly from the mouth or pour it into a cup.

  Moreover, as an aspect of the present invention, the lower opening member is formed in a cylindrical shape that is detachably screwed with an annular shoulder portion fitted to the upper outer periphery of the container main body and an upper inner periphery of the container main body. A lid part formed in a size and shape that covers the outer periphery of the shoulder part and the drinking mouth part, and downward from the inner central part of the lid part. And a cylindrical stopper portion that closes an opening portion that communicates with the inside of the container body of the drinking mouth portion, and the rotational position restricting means is provided on the opposed peripheral surface of the shoulder portion and the lid portion. It can be comprised by the recessed part and convex part which are arrange | positioned and are mutually engaged with respect to radial direction.

According to this invention, the stopper can be accurately rotated by the amount of rotation in which the drinking hole protrusion hole of the stopper matches the drinking hole of the lower opening member.
Specifically, for example, when the plug body is rotated in the opening direction and the liquid is poured out from the collar portion of the lower mouth member exposed from the notch hole of the stopper body, Therefore, it is impossible to grasp that the notch hole of the plug body has been rotated to a position opposite to the collar portion of the lower opening member. It may turn too much or need more than necessary. When the position of the notch hole of the plug body and the collar part of the lower opening member shifts, there is a possibility that the liquid poured out from the collar part hits the plug body and disturbs the dispensing.

  On the other hand, when the portable beverage container of the present invention is operated to rotate the plug body in the opening direction and the drinking hole protruding hole of the plug body is rotated to a position coinciding with the drinking hole of the lower mouth member, The concave portion and the convex portion formed on the opposed peripheral surfaces of the shoulder portion and the lid portion are engaged with each other, and the rotation of the stopper is restricted to a position where the protruding portion of the stopper matches the outlet of the lower opening member.

  As a result, the plug body has been turned to the position where the drinking hole projection hole of the plug body coincides with the drinking hole of the lower mouth member due to the uneven feel imparted when engaging the concave portion and the convex portion. It can be grasped by the operational feeling given to the hand that performs the rotation operation, and it is possible to prevent the plug body from being turned excessively or insufficiently.

  Moreover, as an aspect of this invention, the said recessed part and the said convex part are provided in the opposing peripheral surface of the said shoulder part on the opposite side to the said drinking mouth, and the said cover part, and the said plug body to the direction corresponding to the said drinking mouth A clearance allowing the eccentricity is provided on the opposed peripheral surfaces of the shoulder and the lid corresponding to the drinking mouth.

  According to the configuration described above, in the state where the stopper is rotated in the opening direction and the drinking hole protruding hole of the stopper is made to coincide with the drinking hole of the lower opening member, the portable beverage container is moved to the lower opening member. When tilted to the angle at which the liquid is poured out from the drinking mouth, the tilting movement causes the entire plug body to move eccentrically in the direction in which the concave portion and convex portion are engaged by the amount of movement corresponding to the clearance. Is acceptable. Thereby, since the above-mentioned recessed part and convex part are mutually engaged, rotation control is carried out to the position in which the drinking mouth protrusion hole of a stopper corresponds with the drinking mouth of a lower mouth member.

As a result, when the portable beverage container is tilted to the desired angle and the liquid is directly drunk from the drinking port of the lower mouth member or poured into a container such as a cup, the drinking mouth protruding hole of the stopper and the lower mouth member It is possible to prevent the position of the mouth from shifting.
Further, since the operation of releasing the engagement between the concave portion and the convex portion is allowed by the clearance, the operation when the plug body is rotated in the opening direction or the closing direction can be performed without any trouble.

  Further, as an aspect of the present invention, either one of the concave portion and the convex portion is disposed on the shoulder portion peripheral surface opposite to the drinking mouth, and the shoulder portion and the drinking mouth portion are opposed to each other. An anti-rotation means for preventing the rotation of the shoulder portion and the drinking mouth portion in a non-rotatable manner in a state where the shoulder portion is positioned on the opposite side of the drinking mouth on the peripheral surface.

  Here, the anti-rotation means described above includes, for example, a concave portion formed on one peripheral surface, a convex portion that engages with the concave portion formed on the other peripheral surface, a locking hole formed on one peripheral surface, It can be configured by a locking body or the like biased in a direction to engage with the locking hole.

According to this invention, the eccentric movement direction of the plug body in the direction in which the engagement between the concave portion and the convex portion is allowed can be matched with the direction corresponding to the drinking mouth of the lower mouth member.
According to the configuration described above, the shoulder portion and the drinking mouth portion are rotated by the anti-rotation means in a state where one of the concave portion and the convex portion is positioned on the shoulder peripheral surface on the opposite side to the drinking mouth. As the portable beverage container is tilted at an angle at which the liquid is poured out from the drinking mouth of the lower mouth member, the above-mentioned recess and projection are engaged with each other at a position opposite to the drinking mouth. Therefore, the eccentric movement of the plug body is allowed in the direction corresponding to the drinking mouth of the lower mouth member. That is, since the direction in which the engagement between the concave portion and the convex portion is allowed matches the eccentric movement direction of the plug body, the positions of the drinking hole projection hole of the plug body and the drinking mouth of the lower mouth member are shifted. Can be prevented.

  As a result, when the portable beverage container is tilted to the angle at which the liquid is poured out from the drinking port of the lower mouth member, the drinking mouth protruding hole of the stopper and the drinking mouth of the lower mouth member are more securely positioned at the same position. The rotation can be restricted.

  Moreover, as an aspect of the present invention, a projecting side of a convex annular projection that projects a lower end portion inserted into the mouth portion of the container body of the lower mouth member toward a radially inward direction along the inner circumference of the mouth portion. It is formed in a drooping length that reaches a position facing the inner circumference, and the lower end portion of the lower mouth member is water-stopped between the opposed surfaces of the lower end outer circumference of the lower mouth member and the projecting side inner circumference of the annular protrusion. A waterproofing packing can be provided.

According to this invention, in the closed state, it is possible to prevent the liquid stored in the container main body from flowing out, and to ensure higher water stopping performance.
Specifically, for example, the packing attached to the lower end portion of the stopper body is vertically pressed from above to the upper surface of the opening portion of the lower opening member communicating with the middle container accommodated in the container body, and the lower opening member is closed. Since the pressing is performed only on the upper surface of the opening, the contact area between the packing and the upper surface of the opening is small, and it is difficult to ensure the water stop necessary to prevent the liquid from flowing out.

  On the other hand, the portable beverage container of the present invention pushes the lower end of the lower mouth member deeply until it reaches the position facing the projecting side inner circumference of the annular protrusion formed on the inner circumference of the mouth of the container body. The packing attached to the lower end of the member is pressed against the circumferential surface extending from the upper projecting circumferential surface of the annular projecting portion to the radially inner projecting circumferential surface.

As a result, the contact area between the packing and the annular projecting portion is larger than pressing the packing only on the upper projecting peripheral surface of the annular projecting portion, and a higher water-stopping property can be ensured.
Furthermore, in the closed state, it is possible to ensure the water stoppage necessary to prevent the liquid stored in the container body from flowing out. For example, a portable beverage container that stores liquid such as hot water or drinking water falls over. Even if it does, it can prevent reliably that the liquid stored in the container main body flows out.

  Furthermore, since a larger contact resistance can be obtained than when the packing is pressed only against the upper projecting peripheral surface of the annular projection, the contact resistance between the packing and the annular projection when the plug body is rotated in the opening direction. Thus, an effect of preventing the lower opening member from being rotated in the opening direction together with the plug body can be obtained.

  Further, as an aspect of the present invention, the plug body includes an internal space communicating with the plug body and the outside, and the packing of the plug body has a size such that the lower end side opening of the plug body is closed. And a reversing portion having a cross-sectional arc shape projecting toward the inside of the plug body at the center portion corresponding to the opening on the lower end side of the plug body in the packing, The container body is configured to be elastically deformable into a protruding state protruding toward the inside of the container and an inverted state protruding in the opposite direction to the protruding state, and is pressed against an outer peripheral portion pressed against the lower end of the plug body of the packing A pressure adjusting hole that communicates the storage space of the plug and the internal space of the plug body, and the outer peripheral portion of the packing is on the upper surface side of the pressure adjusting hole with respect to the lower end portion of the plug body by the restoring force of the packing itself Direction in which the peripheral edge is pressed into close contact It can be biased.

According to the present invention, it is possible to close the plug so that the plug can be opened by hand while ensuring the water-stopping necessary to prevent the liquid from flowing out.
Specifically, for example, when the internal pressure of the container body falls below normal pressure due to a decrease in the temperature of the liquid stored in the container body, the internal pressure becomes lower than the outside of the container body. The body packing is strongly pressed against the upper surface of the opening of the lower mouth member. For this reason, the contact resistance between the packing and the opening portion is increased, the resistance when the plug body is turned in the opening direction is large, and it is difficult to open the plug body by hand.

  In contrast, the portable beverage container of the present invention, when the internal pressure of the container body is lower than normal pressure, the reversal part of the packing attached to the lower end of the stopper body is reversed downward against the restoring force, Since the reversing portion is pulled downward, a gap is generated between the outer peripheral portion of the packing and the lower end portion of the plug.

  The pressure adjusting hole formed in the outer peripheral portion of the packing is pulled away from the lower end portion of the plug body, and a gap is formed between the upper surface side peripheral portion of the pressure adjusting hole and the lower end portion of the plug body. Thus, the storage space of the container body and the internal space of the stopper are communicated.

  Since the internal space of the plug body communicates with the outside, intake of outside air is allowed from the internal space of the plug body toward the storage space of the container body through the pressure adjusting hole. Due to the intake air, the internal pressure of the storage space in the container main body is restored at normal pressure, and the pressure difference between the storage space of the container main body and the internal space of the stopper is reduced.

  As a result, the pressing force of the packing against the lower end side opening of the lower opening member returns to the normal pressure state, and the contact resistance given when the plug body is rotated in the opening direction is reduced. The body can be opened easily by hand.

  According to this invention, it is possible to provide a portable beverage container that can be dispensed in a desired amount by tilting the container body without removing the plug from the upper part of the container body.

The front view of the portable beverage container of the closure state in a 1st embodiment. The perspective view which looked at the portable drink container of the closure state shown in FIG. 1 from back side diagonally upward. AA arrow sectional drawing of the portable beverage container of the closure state shown in FIG. BB arrow sectional drawing of the portable beverage container of the closure state shown in FIG. The front view of the portable beverage container in the opened state. Fig. 6 is a front oblique upper perspective view of the opened portable beverage container shown in Fig. 5. DD arrow sectional drawing of the portable beverage container of the open state shown in FIG. EE arrow sectional drawing of the portable beverage container of the open state shown in FIG. Explanatory drawing of rotation operation which obstructs or opens a drinking mouth with a stopper. Explanatory drawing at the time of carrying out rotation operation of the plug body to a closed state and an open state. FIG. 11 is an enlarged view of a portion of an operation for engaging the groove and the convex portion shown in FIG. 10. Explanatory drawing of the water stop state by packing of a stopper.

An embodiment of the present invention will be described in detail with reference to the drawings.
1 is a front view of a portable beverage container 10 in a closed state according to the first embodiment, FIG. 2 is a rear oblique upper perspective view of the portable beverage container 10 in a closed state shown in FIG. 1, and FIG. 3 is a closed state shown in FIG. 4 is a cross-sectional view of the portable beverage container 10 taken along the line A-A, and FIG. 4 is a cross-sectional view of the portable beverage container 10 in the closed state shown in FIG.

  5 is a front view of the opened portable beverage container 10, FIG. 6 is a front oblique oblique view of the opened portable beverage container 10 shown in FIG. 5, and FIG. 7 is the opened portable beverage shown in FIG. DD arrow sectional drawing of the container 10, FIG. 8 is EE arrow sectional drawing of the portable drink container 10 of the open state shown in FIG.

The portable beverage container 10 of the present embodiment has a bottomed cylindrical shape in which a storage space X for storing a liquid (specifically, drinking water) is formed inside, and a cylindrical mouth portion 12 is opened at the top. The container main body 11, the cylindrical lower mouth member 13 fitted to the upper portion of the container main body, and the water stop stopper for closing the opening 15 m of the drinking mouth member 15 communicating with the storage space X of the container main body 11. And a plug body 16 having a packing 21.
The lower mouth member 13 includes an annular shoulder member 14 fitted to the upper outer periphery of the container main body 11 and a cylindrical drinking mouth detachably screwed to the upper inner periphery of the container main body 11. It consists of the member 15.

The container main body 11 is configured in a vacuum double structure with an outer container 11a arranged outside and an inner container 11b arranged inside the outer container 11a. The outer container 11a and the inner container 11b are both made of thin stainless steel.
The body portion 11c of the container body 11 is formed in a shape that smoothly bulges in the radial direction as it progresses from the midway portion in the vertical direction to the front portion of the mouth portion 12.
In addition, you may form the outer diameter of the trunk | drum 11c in the shape which becomes substantially the same diameter toward the upper end side from a lower end side.

  The mouth edge portion 12a of the mouth portion 12 in the container body 11 is formed in a shape projecting upward in a cylindrical shape. Further, the upper outer periphery of the mouth portion 12 below the mouth edge portion 12a is formed in a stepped shape that gradually decreases in diameter from the front portion of the mouth portion 12 toward the upper side.

  In order to removably screw the drinking mouth member 15 to the mouth portion 12 of the container main body 11 on the inner periphery of the mouth edge portion 12a, one screwed screw portion 18a of the pair of screwed screw portions 18a and 18b. Is screwed.

  A convex annular protrusion 19 whose entire inner periphery protrudes in the radially inward direction is provided on the inner periphery below the screw thread portion 18a in the mouth edge portion 12a, and the lower periphery of the screw thread portion 18a. It forms continuously in the circumferential direction along the surface.

  The shoulder member 14 is formed in a substantially annular shape by integrally connecting an upper cylindrical portion 14a protruding upward in a cylindrical shape and a lower cylindrical portion 14b protruding downward in a cylindrical shape. Yes. The outer peripheral surface of the upper cylindrical portion 14a is inclined to a tapered surface that gradually decreases in diameter from the lower end side toward the upper end side.

  The lower cylindrical portion 14b is formed in a stepped shape that gradually decreases in diameter from the lower end side toward the upper end side, corresponding to the mouth edge portion 12a of the mouth portion 12 in the container main body 11. The inner peripheral surface of the lower side cylinder part 14b is formed in the internal diameter and shape which are surface-contacted with the outer peripheral surface of the edge part 12a.

The structure of the fitting part of the shoulder member 14 and the drinking mouth member 15 described above will be described with reference to FIGS. 9, 10, and 11.
FIG. 9 is an explanatory view of a turning operation for closing or opening the drinking mouth 15c with the plug body 16. Specifically, FIG. 9A is a plan view of the drinking mouth 15c closed, and FIG. 9B is a drinking mouth. It is a top view in the state where 15c was opened.

  FIG. 10 is an explanatory view when the plug body 16 is rotated between a closed state and an opened state. Specifically, FIG. 10 (a) is a cross-sectional view taken along the line CC in the closed state shown in FIG. (B) is FF arrow sectional drawing of the open state shown in FIG.

  FIG. 11 is an enlarged explanatory view of a portion of the operation of engaging the groove portion 20a and the convex portion 23b shown in FIG. 10, and specifically, FIG. 11A is an enlarged cross-sectional view of the state in which the convex portion 23b is engaged with the groove portion 20a. FIG. 11B is an enlarged cross-sectional view showing a state in which the convex portion 23b gets over the wall portion 20b.

  Convex portions 14c projecting in the radially inward direction are formed on the inner periphery of the upper end side facing the upper cylindrical portion 14a. The opposing pair of convex portions 14c are formed in different sizes (see FIGS. 4, 8, and 10).

A claw portion 14d protruding in the radially inward direction is provided along the upper end side inner peripheral surface of the upper tube portion 14a on the upper end side inner periphery excluding the portion where the convex portion 14c of the upper tube portion 14a is formed. A plurality are formed at predetermined intervals with respect to the direction (see FIGS. 3 and 7).
In the embodiment, the convex portions 14c are arranged at two locations on the inner peripheral surface facing the upper cylindrical portion 14a. However, for example, one location or three or more locations may be arranged.

On the outer peripheral surface of the upper cylindrical portion 14a, a concave engagement portion 20 that is recessed in a radially outward direction is formed on the outer peripheral surface at a position that is eccentric by approximately 90 degrees with respect to the convex portion 14c (FIG. 10). FIG. 11).
The concave engaging portion 20 includes a groove portion 20a having a central portion in the width direction on the outer peripheral side that is recessed in a concave shape in the radial direction, and a wall portion 20b in which both side portions in the width direction of the groove portion 20a protrude in the radial direction. It consists of.

  Wall part 20b inclines to the taper surface which becomes a small diameter gradually as it leaves | separates toward the circumferential direction from the groove part 20a. Further, the surface of the wall portion 20b that protrudes in the radially outward direction is inclined to a tapered surface that gradually decreases in diameter from the lower end side toward the upper end side (see FIGS. 11A and 11B).

  On the outer periphery on the lower end side of the upper cylindrical portion 14a, an annular step portion 14e to which the outer peripheral portion of the plug 16 is fitted is formed concentrically with the cylindrical portions 14a and 14b. The step portion 14e has a smaller diameter than the outer diameter of the lower cylindrical portion 14b and is formed to have substantially the same diameter as the lower end side outer surface of the wall portion 20b.

  The drinking mouth member 15 includes a cylindrical upper tube portion 15a that protrudes upward from the rim portion 12a of the container body 11, and a lower tube portion 15b that is screwed into the inner periphery of the lip portion 12a. Are integrally connected to form a substantially cylindrical shape.

  On the upper inner periphery (one side inner periphery) of the upper cylindrical portion 15a, an arc-shaped drinking mouth 15c that allows the liquid stored in the storage space X of the container body 11 to be poured is formed. An air passage 15d that allows inflow of outside air toward the storage space X of the container body 11 is formed in the upper inner periphery on the side opposite to the drinking mouth 15c.

  The upper portion of the upper cylindrical portion 15a opposite to the drinking mouth 15c has a size and a shape substantially coincident with the drinking mouth protruding hole 23a of the lid 23, and is opposite to the drinking mouth 15c from the center of the upper cylindrical portion 15a. A drinking mouth closing portion 15T that is inclined at a gradually decreasing angle toward the outer peripheral portion on the side is formed.

Further, the drinking mouth closing portion 15T is formed in a smooth curved surface that gradually increases from the central portion of the drinking mouth closing portion 15T toward both ends.
The upper end portion of the upper cylindrical portion 15a excluding the drinking mouth closing portion 15T is inclined to a tapered surface that gradually decreases in the radial direction.

  On the upper outer surface of the upper cylindrical portion 15a corresponding to the drinking mouth 15c, a smoothly curved hollow portion 15e that is recessed in a radially outward direction is formed. Thereby, since the upper end side edge part of the drinking mouth 15c becomes the shape which protruded toward the front, when the container main body 11 stands in the attitude | position which the drinking mouth 15c faces upwards, the cut | disconnection of a liquid is good and an upper cylinder part The liquid can be prevented from dripping along the upper outer surface of 15a (see FIGS. 3 and 7).

  On the outer periphery of the central portion below the drinking mouth 15c of the drinking mouth member 15, a flange portion 15f that is in contact with the upper end of the upper cylindrical portion 14a is continuously formed in the circumferential direction. On the lower outer periphery of the flange portion 15f, a groove portion 15g for engaging the claw portion 14d of the upper cylindrical portion 14a is formed continuously in the circumferential direction along the lower outer peripheral surface of the flange portion 15f. .

  On the lower outer periphery of the groove portion 15g, a convex annular protrusion 15h is formed continuously in the circumferential direction along the lower outer periphery of the upper groove portion 14g. (See FIGS. 3 and 7).

  Concave portions 15i that are allowed to engage with the convex portions 14c are formed on the opposing peripheral portions of the annular protrusions 15h, corresponding to the convex portions 14c of the upper cylindrical portion 14a. The pair of opposing concave portions 15i are formed in different sizes corresponding to the convex portion 14c (see FIGS. 4, 8, and 10).

Further, on the lower outer periphery below the annular protrusion 15h of the drinking mouth member 15, the other screwing screw part 18b is screwed in correspondence with the screwing screw part 18a of the mouth edge part 12a.
In the embodiment, the example in which the pair of convex portions 14 and the pair of concave portions 15i are formed in different sizes, but may be formed in the same size.

  The lower end portion of the lower cylindrical portion 15b extends downward from the screw thread portion 18a in the mouth edge portion 12a, and projects inward in the radial direction of the annular protrusion 19 formed on the lower inner periphery from the screw screw portion 18a. It is formed in a drooping length that reaches a position facing the inner periphery of the protruding side.

  On the lower end side outer periphery of the lower cylindrical portion 15b, an annular projecting portion 15j protruding outward in the radial direction is formed continuously along the outer periphery of the lower end portion of the lower cylindrical portion 15b. . An annular water-stopping packing 21 formed of a flexible elastic member (specifically, silicone rubber) is fitted to the protruding portion 15j.

  An opening 15m having a circular shape in plan view is opened in communication with the storage space X of the container main body 11 at the lower end side central portion of the lower cylindrical portion 15b. On the lower end side inner periphery of the lower cylindrical portion 15b, a protruding portion 15k that protrudes in the radially inward direction is formed continuously in the circumferential direction along the upper inner periphery from the opening 15m.

Furthermore, a plug body 24 of the plug body 16 is detachably screwed to the mouth section 12 of the container body 11 on the inner periphery of the center portion below the drinking mouth 15c of the drinking mouth member 15, so One screwing screw portion 22a in the screwing screw portions 22a and 22b is screwed.
In addition, the screwing screw part 22a is arrange | positioned at the both-sides inner periphery of the drinking mouth member 15 except the part which formed the drinking mouth 15c and the ventilation path 15d.

  The shoulder member 14 and the mouthpiece member 15 described above are configured such that the size of the convex portion 14c of the upper cylindrical portion 14a of the shoulder member 14 and the size of the concave portion 15i of the annular protrusion 15h of the mouthpiece member 15 match each other. It is inserted from below into the lower outer periphery of the drinking mouth member 15.

  Subsequently, the claw portion 14d of the upper cylindrical portion 14a is engaged with the groove portion 15g of the drinking mouth member 15, and the convex portion 14c of the upper cylindrical portion 14a is engaged with the concave portion 15i of the annular protrusion 15h, thereby The mouth member 15 is integrally fitted and fixed (see FIGS. 4 and 10A).

That is, since the size of the convex portion 14c and the concave portion 15i are matched and the shoulder member 14 and the drinking mouth member 15 are fitted, the concave engaging portion 20 of the shoulder member 14 is connected to the drinking mouth of the drinking mouth member 15. It can be fitted while facing away from 15c.
Thereby, it can assemble | attach integrally, without mistaking the direction of the shoulder member 14 and the drinking mouth member 15.

  When the lower mouth member 13 composed of the shoulder member 14 and the mouthpiece member 15 described above is fixed to the mouth portion 12 of the container body 11, the lower portion of the mouthpiece member 15 to which the shoulder member 14 is integrally fitted. The side tube portion 15b is inserted into the mouth portion 12 of the container body 11, and the bottom tube is rotated in the closing direction CL (clockwise) so that the pair of screwing screw portions 18a and 18b are screwed together. The lower end portion of the portion 15b is pushed deeply until reaching the position facing the protruding side peripheral surface of the annular protrusion 19.

  At the same time, the shoulder member 14 fitted to the outer periphery of the drinking mouth member 15 is fitted to the outer peripheral surface of the mouth edge portion 12a having a stepped shape in the container body 11, and the mouth edge portion 12a of the mouth portion 12 is attached to the shoulder portion. The member 14 and the drinking mouth member 15 are sandwiched in the thickness direction.

  When inserting the lower cylinder part 15b of the drinking mouth member 15 into the mouth part 12 of the container body 11, the packing 21 of the lower cylinder part 15b is opposed to the protruding peripheral surface of the annular protrusion 19 in the mouth edge part 12a. Until the packing 21 is in close contact with the circumferential surface extending from the upper projecting circumferential surface of the annular projection 19 to the radially inner projecting circumferential surface (see FIG. 12).

  As a result, the contact area between the annular protrusion 19 and the packing 21 is larger than when the packing 21 is pressed only against the upper protruding peripheral surface of the annular protrusion 19, and higher water-stopping performance can be ensured.

  Furthermore, since a larger contact resistance can be obtained than when the packing 21 is pressed only on the upper projecting peripheral surface of the annular protrusion 19, when the plug body 16 is turned in the opening direction OP (counterclockwise), the annular shape is increased. Due to the contact resistance between the protrusion 19 and the packing 21, an effect of preventing the drinking mouth member 15 from rotating is also obtained.

  Furthermore, the shoulder member 14 and the drinking mouth member 15 are pressed in the thickness direction against the mouth edge portion 12a of the mouth portion 12 in the container body 11, and the mouth edge portion 12a of the mouth portion 12 is pressed against the shoulder member 14 and the mouth opening. Since it is clamped with the member 15 in the thickness direction, when the plug body 16 is rotated in the opening direction OP, an effect of preventing the drinking mouth member 15 from being provided is obtained (see FIGS. 3 and 4). .

  In addition to the effect of preventing rotation due to the contact resistance between the packing 21 and the annular protrusion 19 described above, the effect of preventing rotation by sandwiching the lip 12a of the mouth 12 between the shoulder member 14 and the drinking mouth member 15 is provided. Since it is obtained synergistically, a higher anti-rotation effect can be obtained.

The stopper 16 includes a lid 23 formed in a size and shape that covers the outer periphery of the upper cylindrical portion 15 a of the drinking mouth member 15 that protrudes upward from the mouth 12 of the container body 11, and an inner central portion of the lid 23. A cylindrical plug main body 24 projecting downward from the pipe is integrally fitted (see FIGS. 3 and 4).
The lid body 23 and the plug body 24 are both made of a synthetic resin such as polypropylene.

  The lid body 23 has an upper surface formed in a circular shape in plan view, and an outer peripheral portion of the lid body 23 formed in a divergent shape gradually increasing in diameter from the upper end side toward the lower end side. On the upper surface of the lid 23, the drinking mouth 15 c is allowed to protrude upward on the same circumference as the upper end of the lower mouth member 13 where the drinking mouth 15 c of the drinking mouth member 15 is formed. An arc-shaped drinking hole projection hole 23a is formed.

  The drinking hole projection hole 23a is formed in the circumferential direction along the rotation direction of the plug body 16 (opening direction OP and closing direction CL), and is the same as the upper end portion where the drinking hole 15c of the drinking hole member 15 is formed. The radius of curvature is formed.

  In the upper part of the lid 23 where the drinking hole projecting hole 23a is formed, the drinking mouth exposing part that inclines at an angle gradually decreasing from the central part of the lid body 23 toward the outer peripheral part corresponding to the drinking hole projecting hole 23a. 23T is formed. Further, the drinking mouth exposed portion 23T of the lid body 23 is inclined at substantially the same angle as the drinking mouth closing portion 15T of the drinking mouth member 15, and is formed to have substantially the same curved surface.

  The outer peripheral portion on the lower end side of the lid body 23 is formed in a size and a shape that allow fitting to the outer peripheral surface of the stepped portion 14e of the shoulder member 14. On the inner periphery on the lower end side of the lid body 23, a convex portion 23b that projects in the radially inward direction is formed on a part of the inner circumferential surface of the lid body 23 opposite to the drinking hole projection hole 23a.

  The convex portion 23 b is formed in a size and shape that allows engagement with the groove portion 20 a of the concave engaging portion 20, and has a height corresponding to the concave engaging portion 20 formed on the upper cylindrical portion 14 a of the shoulder member 14. It is formed on the inner peripheral surface at the position.

  A cylindrical receiving portion 23 c that protrudes downward is formed on the inner central surface of the lid body 23. A plurality of locking claws 23d projecting in the radially inward direction are formed at a predetermined interval in the circumferential direction on the inner periphery on the lower end side of the receiving portion 23c.

  The plug body 24 is formed in a hollow cylindrical shape that penetrates the inside of the plug body 24 from the lower end side toward the upper end side. The internal space Y surrounded by the lid 23 fitted to the upper end opening of the plug body 24 and the packing 25 fitted to the lower end opening is connected to the outside of the plug 16 via a ventilation path (not shown). It is configured to communicate.

The upper cylinder portion 24 a of the plug body 24 is formed in a size and shape that allows fitting to the receiving portion 23 c of the lid body 23. On the outer periphery of the upper cylindrical portion 24a, locking holes 24b for locking the locking claws 23d of the receiving portion 23c are formed at predetermined intervals in the circumferential direction.
Further, on the outer periphery of the central portion below the upper cylindrical portion 24a of the plug body 24, the other screwing screw portion 22b is screwed in correspondence with the screwing screw portion 22a of the spout member 15.

  The lid body 23 and the plug body 24 described above are fitted into the upper cylinder portion 24a of the plug body 24 from below with respect to the receiving portion 23c of the lid body 23, and are also received in the locking holes 24b of the upper cylinder portion 24a. The locking claw 23d of 23c is engaged, and the lid body 23 and the plug main body 24 are integrally fitted and fixed.

On the outer periphery of the lower end portion of the stopper main body 24, a water-stopping packing 25 formed in a disk shape with a flexible elastic member (specifically, silicone rubber) is provided on the outer periphery of the lower end portion of the stopper main body 24. It fits into the step-like protrusion 24c formed along (see FIG. 12).
A support portion 24e to which the packing 25 (specifically, the outer peripheral portion of the reversing portion 25a) is pressed is formed at the lower end portion below the protruding portion 24c.

  The lower surface of the support portion 24e against which the outer peripheral portion of the reversing portion 25a is pressed is inclined to a tapered surface that gradually decreases from the outer peripheral side toward the inner peripheral side. For this reason, the higher the pressure in the storage space X in the container body 11, the more the outer peripheral portion of the reversing portion 25a is pressed perpendicularly to the lower surface of the support portion 24e.

  The packing 25 is formed in such a size and shape that the lower end side opening 24d of the plug body 24 is closed. A reversing portion 25a having an arcuate cross section projecting upward is formed at the center of the packing 25 corresponding to the opening 24d (see FIGS. 3, 4, and 12).

  FIG. 12 is an explanatory diagram of a water-stopped state by the packing 25 of the plug body 16 shown in part b of FIG. 3. Specifically, FIG. 12 (a) is an enlarged sectional view of the water-stopped state by the packing 25 of the plug body 16, FIG. (B) is an enlarged sectional view of a state in which the storage space X and the internal space Y are communicated with each other.

  The reversing portion 25a of the packing 25 has a protruding state (see FIG. 12A) that protrudes upward toward the internal space Y of the plug body 24 in accordance with the change in the internal pressure of the storage space X in the container body 11. Elasticity capable of elastic displacement is provided in an inverted state (see FIG. 12B) that protrudes downward in the opposite direction to the protruding state. Under normal pressure, the reversing portion 25a maintains a projecting state in which the reversing portion 25a projects in an arc shape upward due to the restoring force of the reversing portion 25a itself.

  Further, a pressure adjusting hole 26 having a round shape in plan view is formed through a part of the outer peripheral portion pressed against the support portion 24e of the reversing portion 25a in the thickness direction. On the lower peripheral edge of the pressure adjusting hole 26, a convex protrusion 26 a that protrudes downward is formed continuously in the circumferential direction along the lower peripheral edge of the pressure adjusting hole 26. That is, the thickness of the peripheral portion of the pressure adjusting hole 26 is made thicker than the peripheral portion of the pressure adjusting hole 26.

For this reason, even if the reversing operation of the reversing portion 25a is repeated many times, for example, cracks and cracks are hardly generated in the peripheral portion of the pressure regulating hole 26, and the pressure regulating action by the pressure regulating hole 26 is continuously obtained. In addition, it is possible to ensure the strength necessary to maintain airtightness and waterstop.
In addition, in the Example, although the pressure regulation hole 26 is formed in one place, you may form in multiple places as needed.

  When the plug body 16 composed of the lid body 23 and the plug body 24 described above is rotatably screwed to the lower mouth member 13 fixed to the mouth portion 12 of the container body 11, the lid body 23 is integrated. The plug body 24 fitted into the container body 11 is inserted into the drinking mouth member 15 screwed into the mouth portion 12 of the container body 11, and the pair of screwing screw portions 22a, 22b are screwed together in the closing direction CL. Since the outer peripheral portion of the packing 25 fitted to the lower end portion of the stopper main body 24 is pressed in a state of being in close contact with the protruding portion 15k of the lower cylindrical portion 15b of the drinking mouth member 15, the water-stopping property is achieved. Can be secured.

  That is, since the opening 15m of the drinking mouth member 15 in the lower mouth member 13 is closed by the packing 25 of the stopper body 24, the liquid stored in the storage space X of the container body 11 is opened to the opening 15m of the drinking mouth member 15. Can be prevented from flowing out.

When the internal pressure of the storage space X in the container main body 11 is normal pressure, the outer peripheral portion of the packing 25 is pressed against the support portion 24e of the plug main body 24 by the restoring force of the packing 25 itself.
Furthermore, since the upper surface side peripheral portion of the pressure adjusting hole 26 disposed in the outer peripheral portion is also pressed in a state of being in close contact with the lower slope of the support portion 24e, airtightness and water stoppage can be secured at the same time. (See the solid line in FIG. 12 (a)).

When the internal pressure of the storage space X in the container body 11 is higher than that at normal pressure, the outer peripheral portion of the packing 25 is strongly pressed against the lower slope of the support portion 24e, and the upper peripheral side peripheral portion of the pressure adjusting hole 26 is also supported. Since it is strongly pressed perpendicularly to the lower slope of the portion 24e, it is possible to ensure higher airtightness and waterstop.
Therefore, even if the portable beverage container 10 falls over in the closed state as described above, it is possible to reliably prevent the liquid stored in the storage space X of the container body 11 from flowing out.

  When the temperature of the liquid stored in the storage space X of the container main body 11 decreases, for example, when the internal pressure of the storage space X decreases from the normal pressure, the packing 25 of the plug main body 24 is located below the mouthpiece member 15. Since it is strongly pressed against the protruding portion 15k of the cylindrical portion 15b, the resistance when the plug body 16 is turned in the opening direction OP increases, and it is difficult to open the plug.

  However, when the internal pressure of the storage space X decreases from the normal pressure, the reversing portion 25a of the packing 25 reverses downward against the restoring force (see the phantom line in FIG. 12A).

  Furthermore, the reversal part 25a of the packing 25 is pulled downward, whereby a gap is generated between the outer peripheral part of the packing 25 and the lower slope of the support part 24e.

  The upper surface side peripheral portion of the pressure adjusting hole 26 formed in the outer peripheral portion of the packing 25 is separated from the lower inclined surface of the support portion 24e, and the upper surface side peripheral portion of the pressure adjusting hole 26 and the lower inclined surface of the support portion 24e Since a gap is formed between them, the storage space X of the container main body 11 and the internal space Y of the stopper main body 24 communicate with each other through the pressure adjusting hole 26 (see the solid line in FIG. 12B).

  Since the internal space Y of the container main body 11 communicates with the outside of the plug body 16 through an air passage (not shown), the container main body 11 is stored from the internal space Y side of the plug main body 24 via the pressure adjusting hole 26. Intake of outside air is allowed toward the space X side.

  When the internal pressure of the storage space X in the container main body 11 returns to normal pressure due to the intake air, the pressing force of the packing 25 against the protruding portion 15k of the lower cylindrical portion 15b in the drinking mouth member 15 returns to the normal pressure state. Therefore, the contact resistance imparted when the plug body 16 is turned in the opening direction OP is reduced, and the plug body 16 can be opened easily.

  When the internal pressure of the storage space X in the container body 11 returns to normal pressure, the reversing portion 25a of the packing 25 returns to the protruding state in which the reversing portion 25a itself protrudes upward, and the outer peripheral portion of the packing 25 And since the upper surface side peripheral part of the pressure regulation hole 26 is pressed in the state closely_contact | adhered with respect to the lower side slope of the support part 24e, airtightness and water-proof property can be ensured.

  Further, when the plug body 16 is rotated in the opening direction OP and the lower end portion of the lid body 23 in the plug body 16 is moved upward from the step portion 14e of the shoulder member 14 in the lower mouth member 13, The lower end portion of the lid body 23 is supported by the wall portion 20b of the concave engagement portion 20 formed on the shoulder member 14 (see FIGS. 3 and 10A).

  On the other hand, when the stopper 16 is turned in the closing direction CL and the inner periphery of the lower end side of the lid 23 in the stopper 16 is engaged with the outer peripheral surface of the step 14e of the shoulder member 14 in the lower opening member 13. The lid body 23 of the plug body 16 is fitted and held concentrically with the shoulder member 14 of the lower mouth member 13 without rattling.

  When the plug body 16 is moved upward as described above, since the concave engagement portion 20 is not formed on the outer peripheral surface of the shoulder member 14 opposite to the concave engagement portion 20, the lid body of the plug body 16. 23 on the opposite peripheral surface of the lower end side inner periphery of the lower end member 13 and the upper end side outer periphery of the upper cylindrical portion 14a of the shoulder member 14 of the lower opening member 13 by the level difference between the upper cylindrical portion 14a and the stepped portion 14e. A clearance S is formed in which the eccentric movement of the plug body 16 is allowed in a direction corresponding to the drinking mouth 23a (see FIGS. 7 and 10B).

  Next, the operation | movement which pours out the liquid from the portable drink container 10 mentioned above is demonstrated. The stopper 16 is rotated in the opening direction OP to move the packing 25 in the direction in which the opening 15m of the drinking mouth member 15 is released, and the storage space X of the container body 11 and the drinking mouth of the drinking mouth member 15 are moved. 15c is opened to allow the liquid to be dispensed.

  By the opening operation of the plug body 16, the drinking hole protruding hole 23 a of the lid body 23 is moved to a position that coincides with the drinking hole 15 c of the drinking hole member 15, and the drinking hole 15 c of the lower mouth member 13 is swallowed by the plug body 16. When projecting upward from the mouth projecting hole 23a, the drinking mouth 15c of the lower mouth member 13 projects further upward from the drinking mouth exposing portion 23T of the plug body 16, so that liquid can be discharged from the drinking mouth 15c of the lower mouth member 13. When drinking directly, it is possible to secure a protruding amount that is easy to drink (see FIGS. 5 to 7 and FIG. 9B).

  When the mouthpiece protrusion hole 23 a of the lid body 23 is rotated to a position that coincides with the mouthpiece 15 c of the mouthpiece member 15, the convex portion 23 b of the lid body 23 in the plug body 16 becomes the concave engagement portion 20 in the shoulder member 14. Is engaged with the groove 20a, and the rotation of the drinking hole projecting hole 23a of the lid 23 is restricted to the position where it coincides with the drinking hole 15c of the drinking hole member 15 (FIGS. 7 and 10 (b)). ), FIG. 11 (a)).

  As described above, in the state where the drinking mouth 15 c of the lower mouth member 13 protrudes upward from the drinking mouth exposed portion 23 </ b> T of the plug body 16, the portable beverage container 10 is taken as the drinking mouth of the drinking mouth member 15 in the lower mouth member 13. When it is tilted to a desired angle at which the liquid is poured out from the drinking mouth 15c while being held in a posture where 15c is on the near side, the drinking mouth protrusion hole 23a of the lid body 23 in the plug body 16 and the lower mouth member 13 The position of the mouthpiece member 15 with respect to the mouthpiece 15c can be prevented from shifting in the circumferential direction, and the mouthpiece 15c of the mouthpiece member 15 protrudes upward by a predetermined amount from the mouthpiece protrusion hole 23a of the lid 23. Can be kept in.

  As a result, when the portable beverage container 10 is tilted to a desired angle and a desired amount of liquid is poured out from the drinking mouth 15c of the drinking mouth member 15 in the lower mouth member 13, the drinking mouth projecting hole 23a of the lid 23 and the drinking mouth The position of the mouth member 15 with respect to the drinking mouth 15c can be prevented from being shifted unexpectedly. For example, it is safe to drink liquid directly from the drinking mouth 15c of the drinking mouth member 15 or to pour it into a container such as a cup. Yes.

  Even when the internal pressure of the storage space X decreases as the storage amount of the liquid stored in the container body 11 decreases during the dispensing, the direction from the air passage 15d of the spout member 15 toward the container body 11 is reduced. Since the inflow of outside air is allowed, the liquid stored in the container body 11 can be smoothly poured out from the drinking mouth 15c.

  Further, the mouth portion 23 of the lid body 23 is made to have a drinking mouth due to the uneven feel imparted when the convex portion 23b of the lid body 23 is moved over the wall portion 20b of the concave engagement portion 20 and engaged with the groove portion 20a. Since it can be grasped by the operational feeling given to the hand that rotates the plug body 16 that the member 15 has been rotated to a position that coincides with the drinking hole 15c, the plug body 16 is turned more than necessary. Can be prevented.

  Furthermore, in the state where the drinking hole projecting hole 23a of the lid body 23 is rotated to a position coinciding with the drinking hole 15c of the drinking hole member 15, the liquid is poured into the portable beverage container 10 from the drinking hole 15c of the drinking hole member 15. When tilted to the exit angle, the tilting operation causes the entire plug body 16 to be moved by a distance corresponding to the clearance S, so that the groove portion 20a of the concave engagement portion 20 in the shoulder member 14 and the convex portion 23b of the lid body 23 are formed. Are allowed to move in the direction in which they are engaged with each other (see FIG. 7, FIG. 10 (b), FIG. 11 (a)).

  Accordingly, the eccentric movement direction of the plug body 16 in the direction in which the engagement between the groove portion 20a and the convex portion 23b is allowed to coincide with the direction corresponding to the drinking mouth 15c of the drinking mouth member 15 in the lower mouth member 13. , Can be engaged more reliably.

  The protrusion 23b of the lid 23 is engaged with the groove 20a in the shoulder member 14 at a position opposite to the drinking mouth 15c, and the drinking mouth protruding hole 23a of the stopper 16 is the drinking mouth 15c of the drinking mouth member 15. Therefore, it is possible to prevent the position of the lid body 23 from the drinking hole projecting hole 23a from being displaced.

  As a result, when the portable beverage container 10 is tilted to a desired angle and a liquid is directly drunk from the drinking port 15c of the drinking port member 15 in the lower mouth member 13 or poured into a container such as a cup, the plug 16 is inadvertent. Can be more reliably prevented.

  Furthermore, the projection 23b of the lid 23 in the plug body 16 gets over the wall 20b of the concave engagement portion 20 of the shoulder member 14 in the lower mouth member 13 and engages with the groove 20a, and the projection 23b. Is permitted by the clearance S described above, so that the rotation operation when the plug body 16 is rotated in the opening direction OP or the closing direction CL can be performed without any trouble (FIG. 7, (See FIGS. 10 (a) and 11 (b)).

  In addition, if the stopper 16 is rotated in the closing direction CL and the drinking hole protruding hole 23a of the lid 23 is rotated to a position coinciding with the drinking hole closing portion 15T of the drinking mouth member 15, the lid 23 Since the drinking hole protrusion hole 23a engages with the drinking hole blocking portion 15T of the drinking hole member 15, the drinking hole protrusion hole 23a of the lid body 23 can be closed (see FIGS. 1 to 3 and FIG. 9A). ).

Further, when cleaning the inside of the container body 11, the stopper 16 is turned in the opening direction OP in which the screwing screw portions 22 a and 22 b screwed into the drinking mouth member 15 and the stopper body 24 are released. The stopper main body 24 of the stopper body 16 is removed from the drinking mouth member 15 by operating.
Subsequently, the mouthpiece member 15 is rotated in the direction in which the screwing screw portions 18a and 18b screwed into the container body 11 and the mouthpiece member 15 are released, and the shoulder member 14 and the mouthpiece member If the lower opening member 13 consisting of 15 is removed from the upper end portion of the container main body 11, the entire mouth portion 12 of the container main body 11 is opened, so that the operation of cleanly cleaning the inside of the container main body 11 can be easily performed.

In the correspondence between the configuration of the present invention and the embodiment,
The rotational position restricting means of the present invention corresponds to the groove portion 20a of the concave engagement portion 20 and the convex portion 23b in the embodiment,
Similarly,
The shoulder corresponds to the shoulder member 14,
The mouthpiece part corresponds to the mouthpiece member 15,
The lid corresponds to the lid 23,
The plug portion corresponds to the plug body 24,
The pressure adjusting hole corresponds to the pressure adjusting hole 26,
The anti-rotation means corresponds to the convex portion 14c and the concave portion 15i,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

  In the above-described embodiment, the lower mouth member 13 is configured to be separable into the shoulder member 14 and the drinking mouth member 15, but for example, an annular shoulder portion and a cylindrical drinking mouth portion are integrally formed. You may comprise by one member.

X: Storage space Y ... Internal space S ... Clearance 10 ... Portable beverage container 11 ... Container body 12 ... Mouth part 13 ... Lower mouth member 14 ... Shoulder member 14c ... Convex part 15 ... Drinking mouth member 15c ... Drinking mouth 15h ... Annular projection 15i ... concave portion 15T ... drinking mouth closing portion 16 ... plug body 19 ... annular projection 20 ... concave engagement portion 20a ... groove portion 20b ... wall portion 21 ... packing 23 ... lid body 23a ... drinking mouth protruding hole 23b ... convex portion 23T ... Drinking port exposure part 24 ... Plug body 24c ... Projection part 25 ... Packing 25a ... Inversion part 26 ... Pressure adjustment hole

Claims (8)

A container main body having an opening in the upper part; a cylindrical lower mouth member fixed to the upper part of the container main body; a stopper screwed to the lower mouth member so as to be rotatable; A portable beverage container provided with a seal for water stop that plugs an opening communicating with the inside of the container body of the mouth member,
In the upper inner periphery of the lower mouth member, provided with a drinking mouth that allows the liquid stored in the container body to be dispensed,
On the upper part of the stopper, an arc-shaped drinking mouth projecting hole in which the drinking mouth is allowed to protrude upward is provided,
The drinking hole protruding hole,
A portable beverage container formed in the circumferential direction along the rotation direction of the stopper, and having the same radius of curvature as the upper part of the lower mouth member having the drinking mouth. In the upper part of the lower mouth member opposite to the drinking mouth,
A drinking mouth blocking portion having a size and shape substantially matching the drinking mouth protruding hole, and inclined at an angle gradually decreasing from the central portion of the lower mouth member toward the outer peripheral portion on the side opposite to the drinking mouth. Prepared,
In the upper part corresponding to the drinking hole protruding hole of the stopper,
The portable beverage container according to claim 1, further comprising a drinking mouth exposing portion that is inclined at an angle that gradually decreases from a central portion of the stopper toward an outer peripheral portion corresponding to the drinking mouth protruding hole. On the opposing peripheral surface of the lower opening member and the plug,
The portable beverage container according to claim 1 or 2, further comprising a rotation position restricting means for restricting the rotation of the stopper at a position where a drinking hole of the lower opening member and a drinking hole protruding hole of the stopper are aligned. The lower opening member,
An annular shoulder fitted to the upper outer periphery of the container body;
It is composed of a cylindrical drinking mouth portion that is detachably screwed to the upper inner periphery of the container body,
The stopper,
A lid formed in a size and shape that covers the outer periphery of the shoulder and the mouthpiece;
A cylindrical plug portion that projects downward from the inner central portion of the lid portion and closes an opening portion that communicates with the inside of the container body of the drinking mouth portion,
The rotational position regulating means;
The portable beverage container according to claim 3 , wherein the portable beverage container is configured by a concave portion and a convex portion that are arranged on opposing circumferential surfaces of the shoulder portion and the lid portion and are engaged with each other in the radial direction. The concave portion and the convex portion are provided on opposing circumferential surfaces of the shoulder portion and the lid portion on the opposite side to the drinking mouth,
The portable beverage container according to claim 4, wherein a clearance that allows the eccentricity of the plug body in a direction corresponding to the drinking mouth is provided on an opposing peripheral surface of the shoulder portion and the lid portion corresponding to the drinking mouth. . Arranging one of the concave portion and the convex portion on the shoulder peripheral surface on the opposite side of the drinking mouth,
On the opposing circumferential surface of the shoulder and the mouthpiece,
The rotation prevention means which stops the rotation of the shoulder part and the drinking mouth part so that the shoulder part and the drinking mouth part cannot be rotated in a state where the part of the shoulder part is located on the opposite side to the drinking mouth. Portable beverage container. The lower end member inserted into the mouth of the container body of the lower mouth member reaches a position facing the projecting side inner circumference of the convex annular projection projecting in the radially inward direction along the inner circumference of the mouth. Formed in the droop length,
Any one of Claims 1-6 provided with the packing for water stop which stops between the opposing surfaces of the lower end part outer periphery of this lower opening member, and the protrusion side inner periphery of the said annular protrusion in the lower end part of the said lower opening member. The portable beverage container according to one. Inside the plug, provided with an internal space communicating with the plug and the outside,
Forming the packing of the plug body into a size and shape that closes the lower end opening of the plug body;
In the central portion corresponding to the opening on the lower end side of the plug body in the packing, a reversing portion having an arcuate cross section protruding toward the inside of the plug body,
The inversion part,
It is configured to be elastically deformable into a protruding state protruding toward the inside of the plug body and an inverted state protruding in the opposite direction to the protruding state,
The outer peripheral portion pressed against the lower end portion of the plug body of the packing includes a pressure adjusting hole that communicates the storage space of the container body and the internal space of the plug body,
The outer peripheral portion of the packing is urged in a direction in which the upper surface side peripheral portion of the pressure adjusting hole is pressed against the lower end portion of the plug body by the restoring force of the packing itself. The portable beverage container according to any one of the above.

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