JP2009172253A - Plug of beverage container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug of a beverage container which is improved in heat-retention. <P>SOLUTION: The plug 1 of the beverage container includes a water stop packing 8. An inward depression 32a surrounded by a base 3b and a peripheral wall 32c is formed under the base 3b of a plug body 3. A projection 82 for heat insulation which is inserted and mostly filled in the depression 32a is formed in the water stop packing 8. An extraction passage 86 and a ventilation passage 87 which communicate with the liquid-hole 35 and the air-hole 36 of the plug body 3 are respectively made in the projection 82 of the water stop packing 8. Since the thick projection 82 of the water stop packing 8 acts as an insulation too, heat insulation length in the plug body 1 can be enlarged to improve the heat-retention. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a beverage container stopper provided with a water-stopping packing.

  Conventionally, this type of water-stopping packing has a substantially annular shape when viewed from the bottom, and has a structure in which it is extended and attached to the fitting groove on the lower end of the outer surface of the stopper, or when a beverage is poured out. There is a known structure in which the vent hole (closed cylindrical shape) protrudes from the bottom surface of the plug body, and further, the cylindrical protrusion portion of the vent hole is integrally formed of the same member as the plug body (for example, Patent Documents 1 to 4).

Further, there is also known a structure in which the vent hole is detachable from the plug body by a separate member, and the vent hole is bent and closed (for example, Patent Document 5). Furthermore, what provided the heat insulating material inside the plug body is also known (for example, patent document 6).
Japanese Patent No. 3620038 Japanese Patent No. 3620039 Japanese Patent No. 362040 Japanese Patent No. 3620042 Japanese Patent Laid-Open No. 2003-210338 FIG. 2 of JP-A-10-113294

  In the prior arts shown in Patent Documents 1 to 4, the ring-shaped water-stopping packing is extended in the radial direction and attached to the fitting groove of the plug body, but it is attached by extending against the elasticity of the water-stopping packing. In order to operate, when the elongation in the circumferential direction becomes non-uniform or local twisting or displacement occurs, the water-stopping property is poor and may leak. In addition, there is a possibility that leakage may occur in the same manner when the watertight packing is installed in the wrong direction without identifying the vertical direction. Furthermore, since the vent hole is set on the plug body side and is closed, the inside of the vent hole is difficult to clean and unsanitary.

  In the prior art disclosed in Patent Document 5, the vent is separate from the plug and can be cleaned independently. However, since the vent is in the shape of a closed closed pipe, Is difficult to clean and unsanitary.

  Furthermore, in the structure shown in Patent Document 6, the structure of the plug body is complicated due to the structure in which the heat insulating material is installed inside the plug body, and the production is performed by sealing with a lid member or ultrasonic welding for sealing. A process is required, which causes problems in manufacturing cost and productivity.

  The problem to be solved is to improve the heat retaining property and ease of attachment in the plug body, and to be able to be cleaned independently and to be hygienic.

  The invention according to claim 1 is detachably attached to the cylindrical opening of the container body, and is provided on the bottom surface of the stopper body, the stopper body having a cylindrical peripheral wall and a bottom surface, Beverage container plug body comprising a pour-out hole for discharging to the outside, a vent hole for allowing outside air to flow into the container body, and a water-stop packing that is detachably attached to the plug body and can be in close contact with the opening In addition, an inward recessed portion surrounded by a bottom surface and a peripheral wall is formed below the bottom surface of the plug body, and a protruding portion that is inserted so as to substantially fill the recessed portion is provided integrally with the water blocking packing, A beverage container plug according to claim 1, wherein a pour channel and a vent channel communicating with the pour hole and the vent hole of the plug body are provided in the protrusion of the water packing.

  In the invention of claim 2, the air passage of the water-stopping packing is extended downward from the lower end surface of the water-stopping packing to form a protruding portion, and the protruding portion is used as a grip portion when the packing is attached or detached. It is a stopper of the container for drinks of Claim 1 characterized by these.

  According to a third aspect of the present invention, an engagement protrusion and an engagement groove that are engaged with each other and positioned are provided in each of the first inward recess of the plug body and the protrusion of the water blocking packing. It is the stopper of the container for drinks of Claim 1 or 2 characterized by the above-mentioned.

  A fourth aspect of the present invention is the beverage container plug according to any one of the first to third aspects, wherein the air passage is in a semi-open groove shape.

  According to invention of Claim 1, since the thick projection part of the water stop packing acts also as a heat insulating material, the heat insulation length in a plug body can be enlarged and heat retention can be improved.

  According to invention of Claim 2, the operativity of attachment / detachment of a water stop packing can be improved because the protrusion part was used as the grip part of the water stop packing.

According to the invention of claim 3, the engagement protrusion and the engagement groove can be matched so that the water stop packing can be positioned and attached reliably. According to the invention of claim 4, the air passage is open. The inside can be washed cleanly.

  According to the invention of claim 5,

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention.

  Hereinafter, the present invention will be described based on the embodiments shown in the drawings. A stopper 1 of a liquid container such as a thermos bottle has a stopper body 3 called an outer plug or the like that is detachably attached to a cylindrical opening 2 a at the top of the container body 2, and an upper portion of the stopper body 3 in the vertical direction. A lid 4 called an inner plug or the like which is provided so as to be able to pivot on the hinge and opens and closes the opening 2a at the top of the plug body 3 and a locking member for locking the lid 4 to the plug body 3 in a closed state. 5, and the lid 4 is rotatably provided via a support shaft 6. Further, the lid 4 is provided with a lid sealing member 7 made of a rubber-like elastic body such as rubber or elastomer, and when the stopper body 3 is attached to the container body 2 at the lower part of the stopper body 3. Further, a water-stopping packing 8 that is in close contact with the container body 2 is provided. The container body 2 has a heat insulating layer 2d such as a vacuum interposed between the inner container 2b and the outer container 2c.

  The plug body 3 includes a cylindrical plug body 3 having a peripheral wall 3a and a bottom surface 3b, a plug body portion 31 formed in a bottomed cylindrical shape, and an attachment portion to the container body 2 in which the plug body portion 31 is assembled. 32, the plug body 31 is inserted into the opening 2a of the container body 2, and the screw part 33 formed on the outer periphery of the attachment part 32 is screwed into the screw part 21 on the inner periphery of the neck of the container body 2. Is attached to the opening 2a of the container body 2. On the upper side of the mounting portion 32, the lid body 4 is mounted on a horizontal support shaft 6 so as to be pivotable in the vertical direction. Thereby, the plug body 1 becomes the spout 30 on the side facing the support shaft 6 in the radial direction.

  The plug body 31 is formed at an approximate center of the top surface so that the flat bottom surface 3b is inclined from the support shaft 6 side to the spout 30 side. The front side of the peripheral wall 40 that rises substantially perpendicularly from the peripheral edge of the bottom surface 3b and slightly protrudes above the top surface of the plug body 31 is tapered toward the front to form the spout 30. Then, a liquid passage hole 35 that is a pouring hole is formed in the lower side of the bottom surface 3b, and an air hole 36 that is a ventilation hole is formed in the higher side, and the liquid is provided between the bottom surface 3b and the upper opening, that is, between the spout 30. The flow path 37 is used. Then, the bottom of the bottom surface 3b, that is, the inside of the mounting portion 32 is formed as a hollow portion opened downward, and an inward recess 32a surrounded by the upward bottom surface 3b and the lower peripheral wall 32c is formed. A screw portion 33 is formed on the outside. And the liquid flow path 37 is formed in planar substantially circular shape.

  The lid body 4 includes a lid lower part 41 formed in a bottomed cylindrical shape and a lid upper part 42 covering an upper opening of the lid lower part 41, and the lid lower part 41 has a body part 43 and a bottom wall 44. A groove 45 for attaching a seal member is provided on the outer periphery of the body portion 43. The bottom wall 44 is formed in a substantially circular shape corresponding to the bottom surface 3 b of the plug body 3, and is further inclined, and is formed on the lower surface with the liquid passage hole 35 and the air hole 36. Protrusions 46 and 47 for attaching a seal member are formed at corresponding positions. An air vent hole 46 a is formed in the projection 46 corresponding to the liquid passage hole 35.

  The lid lower part 41 is provided with the lid seal member 7 made of a rubber-like elastic body such as rubber or elastomer. The lid seal member 7 includes an inlet seal portion 71 that is a water stop member that seals the liquid passage hole 35 from above when the lid 4 is closed, and an air hole that seals the air hole 36 from above. The seal portion 72 and the outlet seal portion 73 that is in close contact with the inner peripheral wall in the vicinity of the upper opening of the plug body 3 are integrally formed. The inlet seal portion 71 is the projection 46, and the air hole seal portion 72 is Each of the projections 47 is externally fitted, and the outlet seal portion 73 is attached to the lid lower portion 41. The inlet seal portion 71 is provided by forming a hollow portion (not shown) between the projection 46. In this embodiment, an integrated seal member is used. However, the inlet seal 71, the air hole seal 72, and the outlet seal 73 may be separate parts.

  The locking member 5 is provided on the upper surface of the lid upper part 42. The locking member 5 has locking claws 52 that protrude in the left-right direction from the left and right outer peripheral walls of the lid lower part 41 and are locked to locking receiving portions 39 formed on the left and right of the peripheral wall 40, respectively. The protruding direction of the pawl 52, that is, the reciprocating movement from the support shaft 6 toward the pouring spout 30 is provided, and the spring 51 is provided between the side wall of the lid upper portion 42 so as to be reciprocated. Is being energized. In addition, on the upper surface of the lid upper portion 42, an operation portion 53 that is connected to the latching claw 52 and operates the latching claw 52 is formed, and a finger hook that is a lid pushing portion is formed on the front portion of the lid upper portion 42. A portion 53a is formed.

  In the locking member 5, when the upper opening of the plug body 3 is closed by the lid body 4, the locking claw 52 is locked to the locking receiving portion 39 to hold the lid body 4 in a closed state. Further, when the operating portion 53 is moved toward the support shaft 6 against the urging force of the spring 51, the locking claw 52 is moved toward the support shaft 6 so that the lock receiving portion 39 is locked. To release.

  The support shaft 6 is provided with an elastic member (not shown) that constantly urges the lid body 4 in the opening direction (upward), and the lid body 4 is rotated upward and opened by the urging force of the elastic member. The lid 4 is opened 90 degrees or more from the closed state around the support shaft 6, and when the container body 2 is tilted and liquid is poured, the lid 4 is rotated in the closing direction by the biasing force of the elastic member. Regulated and kept open.

  The water-stop packing 8 is integrally formed of a rubber-like elastic body such as rubber or elastomer, and can be brought into close contact with the convex step portion 22 provided at the lower portion of the cylindrical opening 2a of the inner container 2b. A heat-insulating protrusion 82 is formed inside the annular portion 81 whose plane is an annular shape so as to be almost buried in the concave portion 32a. A groove 83 that opens upward is flat between the protruding portion 82 and the annular portion 81 provided at the lower portion of the protruding portion 82 so that the lower portion of the cylindrical mounting portion 32 is fitted. It is formed in an annular shape, and the lower portion of the mounting portion 32 is inserted into the groove 83 and the lower portion is locked, so that the water-stopping packing 8 is positioned at the vertical position with respect to the plug body 1. It has become.

  Furthermore, an engaging protrusion 84 and an engaging groove 85 that are engaged with each other and positioned are provided in each of the inwardly recessed portion 32a and the protruding portion 82. The engagement protrusion 84 is provided on the inner peripheral surface of the attachment portion 32, and is provided so as to protrude slightly toward the inside of the inner peripheral surface and be provided along the vertical direction. The engaging protrusions 84 are arranged in symmetrical positions on both the left and right sides of a virtual line (not shown) connecting a pouring path 86 and a ventilation path 87 described later. On the other hand, the engaging groove 85 is formed in the vertical direction on the outer periphery of the protruding portion 82 so as to face the engaging protrusion 84. The engaging protrusion 84 engages with the engaging groove 85, so that the protrusion 82, and thus the water-stopping packing 8, is prevented from rotating with respect to the plug body 1.

  In addition, the protrusion 82 is provided with a liquid passage hole 35 provided on the bottom surface 3 b of the lid body 4, an extraction passage 86 communicating with the air hole 36, and a half-open groove-like air passage 87. The pouring path 86 is provided in the vertical direction on the front side of the water-stopping packing 8 so as to face the liquid passage hole 35. The upper portion communicates with the lower portion of the liquid passage hole 35 and the lower portion communicates with the inner container 2b. And open. On the other hand, the air passage 87 is provided in the vertical direction along the outer periphery of the water-stopping packing 8 on the rear side of the water-stopping packing 8, and the upper part communicates with the lower part of the air hole 36 and the lower part is in the inner container 2b. Open to communicate with. The air passage 87 formed along the outer periphery of the water blocking packing 8 is formed in a groove shape having an open outer side so that the flat surface has a semicircular shape such as a semicircle without a corner. Further, in the air passage 87, the protruding portion 88 is formed in a short pipe shape by extending downward from the lower end surface of the water-stopping packing 8, and the protruding portion 88 is used as a grip portion to be attached to and detached from the plug body 1. It can be used during operation.

  Next, the operation of the above configuration will be described. The stopper 1 is attached to the opening of the container body 2 in a state where a beverage (not shown) such as hot tea is accommodated in the container body 2. At this time, the annular portion 81 of the water-stop packing 8 can be in close contact with the step portion 22 of the opening of the inner container 2b, so that the watertightness can be maintained. In this heat retaining state, the protrusions 82 made of rubber, such as rubber or elastomer, are fitted into the recesses 32a so that the protrusions 82 are substantially filled with each other. The heat insulation length can be increased and the heat retaining effect can be enhanced.

  Further, when the plug body 1 is closed, the upper surface 55 of the locking claw 52 is locked to the upper surface in the locking receiving portion 39 (the inner top surface of the falling recess), thereby resisting the elastic force of the elastic member. To maintain the closed state. In this state, the locking claw 52 continues to be urged forward according to the urging force of the coil spring 51. The liquid passage hole 35 and the air hole 36 are sealed by the inlet seal part 71 and the air hole seal part 72.

  On the other hand, when the lid in the closed state is opened, the locking pawl 52 is moved backward by sliding the operation portion 53 against the urging force of the coil spring 51, thereby moving the locking pawl 52 backward. The locking with the part 39 is released. By releasing the lock, the lid 4 is rotated in the opening direction around the support shaft 6 by the elastic restoring force of the elastic member, and as a result, the liquid from which the inlet seal portion 71 and the air hole seal portion 72 are separated is opened. The through hole 35 and the air hole 36 are opened.

  In this state, by tilting the container body 2, the accommodated liquid passes through the pouring path 86 and the liquid passage hole 35 and is poured out from the spout 30 through the liquid flow path 37. At this time, the diameter A in the front-rear direction (direction perpendicular to the axial direction of the support shaft 6) is a long diameter, and the diameter B in the left-right direction (direction parallel to the axial direction of the support shaft 6) is a short diameter (A> B). Therefore, the liquid flows out in the liquid flow path 37 so as to be elongated toward the spout 30 without spreading to the left and right. On the other hand, the outside air passes through the air hole 36, the air passage 87, and the protrusion 88 and flows into the inner container 2b.

  Thereafter, when the front of the lid body 4 is rotated in the closing direction against the elastic member around the support shaft 6 and pushed so as to close, the inclined lower surface 54 of the locking claw 52 is located behind the peripheral wall 40. When the lid 4 is pressed against the upper surface 39a of the end face, the inclined lower surface 54 of the locking claw 52 moves rearward along the inclination of the upper surface 39a. This movement is made against the urging force of the coil spring 51. When the inclined lower surface 54 of the locking claw 52 climbs over the rear end portion of the upper surface 39a, the contact state between the two is released, and the locking claw 52 is a locking receiving portion formed of a tilted recess by the urging force of the coil spring 51. It is pushed into 39 and the locked state is maintained.

  On the other hand, when cleaning the water-stopping packing 8, first, the protrusion 88 is grasped and the water-stopping packing 8 is extracted from the plug 1. And it is what is washed with water. At this time, in the stopper 1, the inside of the inward recess 32a can be cleaned. Moreover, in the water stop packing 8, since the air hole 36 is formed in the groove shape which opens an outer side, it can wash | clean to the inside cleanly. Then, the water-stop packing 8 after cleaning is attached to the plug 1 again. In this attachment, the engagement groove 84 is engaged with the engagement protrusion 84 to position the circumferential direction, and the groove 83 is inserted until the lower portion of the attachment portion 32 is locked. Thereby, the water stop packing 8 is positioned with respect to the plug body 1 in the vertical direction and the circumferential direction.

  As described above, in the above-described embodiment, the plug body 3 having the cylindrical peripheral wall 3a and the bottom surface 3b and the bottom surface 3b of the plug body 3 are detachably attached to the cylindrical opening 2a at the top of the container body 2. A liquid passage hole 35 for discharging a beverage (not shown) to the outside of the container body 2, an air hole 36 for flowing outside air into the container body 2, and a stopper that is detachably attached to the plug body 1. In the stopper 1 of the beverage container provided with the water packing 8, an inward recess 32a surrounded by the bottom surface 3b and the peripheral wall 32c is formed below the bottom surface 3b of the stopper body 3, and the recess 32a is substantially filled. A heat-insulating protrusion 82 to be inserted into the water-stopping packing 8 is provided in the water-stopping packing 8, and a pouring passage 86 and an air passage that communicate with the liquid-passing hole 35 and the air hole 36 of the plug body 3, respectively. By providing 87, the water stop packing 8 Large thickness projections 82 can be improved greatly by warmth and insulation length of the plug 1 because it also acts as a thermal insulator. In addition, the vertical direction of the packing can be easily identified by the thick protrusion 82 of the water-stopping packing 8, and it can be pushed in from the bottom instead of being stretched in the radial direction. In addition, leakage due to twisting and displacement can be avoided.

  Further, the air passage 87 of the water-stopping packing 8 is extended downward from the lower end surface to form a protruding portion 88, and the protruding portion 88 is used as a grip portion when the water-stopping packing 8 is attached / detached. Since the water stop packing 8 can be attached and detached by grasping 88, the operability can be improved.

  Furthermore, by providing an engagement protrusion 84 and an engagement groove 85 that are engaged with each other and positioned in each of the inward recess 32 a of the plug body 3 and the heat insulation protrusion 88 of the water blocking packing 8. By fitting the water stop packing 8 with the engagement protrusions 84 and the engagement grooves 85 being matched, the liquid passage hole 35 and the air hole 36 on the plug body 3 side are vented to the pouring path 86 on the water stop packing 8 side. Since each of the paths 87 can be surely matched and communicated and positioned to prevent rotation, a reliable mounting operation is possible. On the other hand, if the engaging protrusion 84 and the engaging groove 85 are not matched, the mounting cannot be performed. It is safe to avoid attaching the wrong direction in the front-rear direction, making it easier to recognize the attachment direction.

  Moreover, the water stop packing 8 is removable from the plug body 3, and the vent passage 87 is opened in a semi-open groove shape, so that the inside of the plug body 1 can be washed cleanly when washing the plug body 1 with water. Can do.

  Moreover, the plug body 3 that is detachably attached to the upper opening of the container body 2, the liquid channel 37 formed inside the plug body 3, the upper part of the liquid channel 37, and the plug body 3 A spout 30 provided on the front side, a lid 4 pivotally supported by the plug body 3 on the back side of the plug body 3 to open and close the liquid flow path 37, and provided on the lid 4 And an inlet seal portion 71 that hermetically seals the liquid flow path 37 from above, and a locking member 5 that locks the lid 4 in a closed state. The lid body 4 is locked in the closed state by the locking claw 52 provided on the locking member 5 and the locking receiving portion 39 provided on the plug body 3, and the engagement member 5 is closed. Spout 3 in which the stopper 39 is tapered toward both the left and right outer sides of the liquid flow path 37 so as to remove the spout 30, that is, forward. Since the recess in the prior art in the liquid flow path 37 is removed and the flow is stabilized without being disturbed, the beverage does not accumulate and remains as dirt in the recess. Therefore, since there is no recess, cleaning becomes easy and hygienic.

  As described above, the beverage container plug according to the present invention can be applied to various applications.

It is a front view of the stopper which shows Example 1 of the present invention. It is a disassembled perspective view when seen from above. It is a disassembled perspective view when seen from the lower side. It is an exploded bottom view when seen from the same lower side. It is a perspective view of the water stop packing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plug body 2 Container main body 2a Opening 3 Plug body 3a Perimeter wall 3b Bottom face 8 Water stop packing 32a Inward recessed part 3b Bottom face 32c Perimeter wall 35 Liquid passage hole (pouring hole)
36 Air holes (vent holes)
82 Projection portion 84 Engagement projection 86 Extraction path 87 Ventilation path 88 Projection

Claims (4)

  A plug body that is detachably attached to the cylindrical opening of the container body and has a cylindrical peripheral wall and a bottom surface, and a pouring hole that is provided on the bottom surface of the plug body and discharges the beverage to the outside of the container body And a plug for a beverage container having a vent hole for allowing outside air to flow into the container body and a water-stopping packing that is detachably attached to the plug body and can be in close contact with the opening. An inward recess surrounded by a bottom surface and a peripheral wall is formed below the bottom surface, and a protrusion that is inserted so as to substantially fill the recess is provided integrally with the water stop packing, and the protrusion of the water stop packing A stopper for a beverage container, comprising a pouring channel and a vent channel communicating with the pouring hole and the vent hole of the plug body, respectively.   2. The air passage of the water stop packing is extended downward from a lower end surface of the water stop packing to form a protrusion, and the protrusion is used as a grip when the packing is attached or detached. A stopper for a beverage container as described in 1.   The engagement protrusion and the engagement groove, which are engaged and positioned with each other, are provided in each of the inward recess of the plug body and the protrusion of the water blocking packing. 2. A stopper for a beverage container according to 2.   The beverage container plug according to any one of claims 1 to 3, wherein the air passage has a semi-open groove shape.

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