JP2023022742A - Cap unit and beverage container - Google Patents

Abstract

To provide a cap unit and a beverage container which can prevent beverage from leaked from a vent hole with a simple configuration even when the beverage powerfully moves in an upward turning direction.SOLUTION: A cap unit 1A that is mounted on a container body 2 whose upper part is opened includes a cap body 10 which blocks an upper opening part 2d of the container body 2 and has a top wall part 10a and a peripheral wall part 10b, a lid body 20 arranged above the cap body 10, a hinge 30 for rotatably connecting the lid body 20 to the cap body 10, and a water stop packing 40 for sealing a space between the container body 2 and the cap body 10, wherein the cap body 10 has a liquid passing port 12 and a vent hole 13 which penetrate through the top wall part 10a in a vertical direction and communicate the inside and the outside of the container body 2, and are covered with the lid body 20, and the vent hole 13 is covered with the water stop packing 40 when viewed from below.SELECTED DRAWING: Figure 3

Description

The present invention relates to cap units and beverage containers.

As conventional cap units, for example, those described in Patent Documents 1 and 2 are known. The cap unit includes a cap body that closes the upper opening of the container body, a lid body that is rotatably connected to the cap body via a hinge, and a waterproof packing that seals between the container body and the cap body. , provided. The cap main body has a liquid passage port and a vent hole for communicating the inside and the outside of the container main body.
By providing the vent hole, when the contents (beverage) of the container body flow out through the liquid passage port, it becomes possible to suck air into the container body, and the beverage can smoothly flow out of the container.

In particular, in a beverage container of the type in which a nozzle portion (drinking mouth) having a liquid passage opening is held in the user's mouth, as in Patent Document 1, the inside of the container is decompressed when the user drinks the beverage. High need for stomata. In addition, in the closed state of the lid, the ventilation hole is closed by an elastic member (ventilation sealing portion). This prevents the beverage from leaking out of the vent when the container falls over.

Japanese Patent No. 3937428 JP 2010-235137 A

However, for example, when the beverage container falls in an inverted position and collides with the ground, etc., when the beverage moves vigorously in the inverted direction, the vent hole will pass through the sealed portion between the vent hole and the ventilation sealing part. Beverages sometimes leaked from the Also, when drinking a beverage with the lid open, even if the beverage container is tilted vigorously, the beverage moves vigorously in the inverted direction, and the beverage flows through the inside (inside) of the vent. I had a leak.
In order to prevent this leakage, for example, the position of the vent is positioned as far away as possible on the opposite side (hinge side, that is, the rear side of the mouth) to the direction of inclination when drinking from the mouth (liquid passage). , when the beverage container is moderately tilted, the inside of the vent is prevented from being filled with beverage (in other words, the inside of the vent is left as an air layer), preventing the beverage from leaking from the vent. It is possible. However, the size of the cap body limits the position of the ventilation hole, and when the beverage container is tilted to a large extent to drink, the inside of the ventilation hole will eventually be filled with the beverage, resulting in the effect of preventing leakage. do not have.

Further, it is conceivable to provide a valve member that can open and close the air vent so that the valve member opens only when air is drawn through the air vent. However, in this case, problems such as a complicated structure, deterioration in cleaning performance, and an increase in cost arise.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cap unit and a beverage container that can prevent the beverage from leaking out of the ventilation hole with a simple structure even when the beverage moves vigorously in an inverted direction.

One aspect of the present invention is a cap unit attached to a container body having an open top, the cap body closing the top opening of the container body and having a top wall portion and a peripheral wall portion, and the cap body. a lid disposed on the upper side of the cap body, a hinge that rotatably connects the lid body to the cap body, and a waterproof packing that seals between the container body and the cap body, The cap body penetrates the top wall portion in the vertical direction to communicate between the inside and the outside of the container body, and has a liquid passage port and a vent hole covered by the lid body. Seen from the side, it is covered with the waterproof packing.

In the cap unit, the cap main body has a tubular portion extending downward from the top wall portion and surrounding the liquid passage port when viewed from below, and the tubular portion extends radially from the peripheral surface of the tubular portion. It is preferable that a vertical ventilation groove extending downward from the ventilation hole is provided, and the waterproof packing further covers the vertical ventilation groove when viewed from below.

In the above cap unit, the cylindrical portion has a lateral ventilation groove extending radially from a lower end surface of the cylindrical portion recessed upward and connected to the vertical ventilation groove. It is preferable to face the groove from below.

In the cap unit, the cap body has a cylindrical portion extending downward from the top wall portion and surrounding the liquid passage port when viewed from below, and the waterproof packing is fitted onto the cylindrical portion. an annular seal flange extending radially outwardly from the packing peripheral wall and sealing between an upper opening of the container body and the top wall of the cap body; and a lower end of the packing peripheral wall. It is preferable that at least the extending flange portion of the waterproof packing overlaps the vent hole when viewed from below.

In the cap unit described above, the waterproof packing may be elastically deformable, and seal the air hole and the interior of the container body so as to communicate with each other.

In the above-described cap unit, the center of the liquid passage port is positioned forward of the central axis of the container body, and the vent hole is positioned between the liquid passage port and the hinge in the front-rear direction. may be

In the cap unit, the cap main body may be formed of a member separate from the top wall portion, and may include an elastically deformable nozzle portion having the liquid passage port therein.

Moreover, one aspect of the beverage container of the present invention comprises the cap unit described above and the container body to which the cap unit is attached.

In the beverage container, the container body preferably has a vacuum insulation structure.

According to the cap unit and the beverage container of one aspect of the present invention, even when the beverage is vigorously moved in the inverted direction, the simple structure can prevent the beverage from leaking out from the ventilation hole.

FIG. 1 is a perspective view showing a beverage container according to a first embodiment of the invention. FIG. 2 is a cross-sectional view showing a beverage container. FIG. 3 is a cross-sectional view showing part of the beverage container, showing the closed state (closed position) of the lid. FIG. 4 is a cross-sectional view showing part of the beverage container, showing the open state (open position) of the lid. FIG. 5 is a perspective view showing a portion of the cap body, and more specifically, shows a portion of the cylindrical portion, ventilation holes, vertical ventilation grooves, horizontal ventilation grooves, etc., and omits illustration of the waterproof packing. FIG. 6 is a cross-sectional view showing part of a beverage container according to a second embodiment of the present invention. FIG. 7 is a perspective view showing part of the cap main body, and more specifically shows part of the cylindrical portion, ventilation holes, vertical ventilation grooves, etc., and omits illustration of the waterproof packing. FIG. 8 is a cross-sectional view showing part of a beverage container according to a third embodiment of the present invention. FIG. 9 is a perspective view showing a part of the cap main body, specifically showing a part of the cylindrical portion, air holes, etc., and omitting the illustration of the waterproof packing.

<First embodiment>
A cap unit 1A according to a first embodiment of the present invention and a beverage container 100 having the same will be described with reference to FIGS. In the following description, the cap unit 1A may be simply called a cap, and the beverage container 100 may be simply called a container.

As shown in FIGS. 1 and 2, the beverage container 100 of this embodiment includes a cap unit 1A and a bottomed cylindrical container body 2 to which the cap unit 1A is detachably attached. The cap unit 1A includes a cylindrical cap body 10 having a top wall (ceiling wall), a capped cylindrical cap body 10, a capped cylindrical lid body 20, and the lid body 20 being rotatable with respect to the cap body 10. It comprises a connecting first hinge (hinge) 30 , a waterproof packing 40 for sealing between the container body 2 and the cap body 10 , and a lid lock mechanism 50 .
The cap unit 1A and the container body 2 are coaxially arranged with the central axis C as the center.

In this embodiment, the direction in which the central axis C extends is called the vertical direction. Among the vertical directions, the direction from the bottom surface portion 2a of the container body 2 to the lid top wall portion 20a of the lid body 20 is called the upper side, and the direction from the lid top wall portion 20a to the bottom surface portion 2a is called the lower side.
A direction perpendicular to the central axis C is called a radial direction. Of the radial directions, the direction closer to the central axis C is called the radial inner side or simply the inner side, and the direction away from the central axis C is called the radial outer side or simply the outer side.
The direction of rotation around the central axis C is called the circumferential direction.

Among the radial directions, the direction passing through the first hinge 30 and the central axis C is called the front-rear direction. Of the longitudinal directions, the direction from the first hinge 30 to the central axis C is called the front side, and the direction from the central axis C to the first hinge 30 is called the rear side.
Moreover, the direction perpendicular to the front-back direction is called the left-right direction among the radial directions. As shown in FIG. 2, when the beverage container 100 is in an upright posture in which the lid top wall portion 20a of the lid body 20 faces upward in the vertical direction, the direction toward the left in the left-right direction is viewed from the front. is called the left side, and the direction toward the right is called the right side. Although not shown, the posture (state) of the beverage container 100 in which the lid top wall portion 20a of the lid body 20 faces downward in the vertical direction is called an inverted posture.

Note that the central axis C may also be referred to as a cap central axis C or a container central axis C to distinguish it from a nozzle central axis, a hinge central axis A, etc., which will be described later.

The beverage container 100 can keep the beverage (liquid content, liquid) contained in the container body 2 warm or cold by the container body 2 having a vacuum insulation structure. The container body 2 has a bottomed cylindrical shape with an open top. Contents other than beverages may be accommodated in the container body 2 .

Specifically, the container body 2 has a bottomed cylindrical outer container 4 and an inner container 5 made of, for example, stainless steel. It consists of a double structure container that is joined.

As shown in FIG. 3, the upper cylindrical portion of the inner container 5 is fitted into the upper cylindrical portion of the outer container 4, and the upper cylindrical portions are welded together in this fitted state. As a result, the upper opening 2d of the container main body 2 has a sharp shape, which is a so-called "coarse weld structure".

A vacuum heat insulating layer 6 is provided between the outer container 4 and the inner container 5 . The vacuum heat-insulating layer 6 can be formed, for example, by plugging a degassing hole provided in the center of the bottom surface of the outer container 4 in a chamber evacuated to a high vacuum.

As shown in FIGS. 1 and 2, the container body 2 includes a substantially disk-shaped bottom portion 2a, a substantially cylindrical trunk portion 2b having a lower end connected to the outer peripheral portion of the bottom surface portion 2a, and a trunk portion 2b. A substantially cylindrical mouth and neck portion 2c arranged above the portion 2b and having a diameter smaller than that of the body portion 2b, and a substantially tapered shape having a diameter decreasing toward the upper side, the upper end portion of the body portion 2b and the mouth and neck. and a shoulder 2e connecting with the lower end of the portion 2c.

As shown in FIG. 3, the inner peripheral portion of the mouth/neck portion 2c is smaller in diameter than the inner peripheral surface of the body portion 2b. A male screw portion 7 is provided on the outer peripheral portion of the mouth/neck portion 2c. Further, the upper end of the mouth/neck portion 2c is opened in a circular shape as the upper opening portion 2d of the container body 2. As shown in FIG.

As shown in FIG. 1, the beverage container 100 of the present embodiment has a generally cylindrical external shape as a whole, but the external shape of the beverage container 100 is not particularly limited. , it is possible to add changes as appropriate according to size, design, etc. Further, each outer surface (surface) of the container body 2, the cap body 10, and the lid body 20 may be painted, printed, or the like.

As shown in FIG. 3, the cap unit 1A is attached to the mouth/neck portion 2c of the container body 2 and constitutes a plug that closes the upper opening 2d of the container body 2. As shown in FIG.

The cap main body 10 is a member that closes the upper opening 2d of the container main body 2, and is made of a heat-resistant resin such as polypropylene (PP).
The cap body 10 has a top wall portion 10a, a peripheral wall portion 10b, and a cylindrical portion 14. As shown in FIG.

The top wall portion 10a covers the upper opening portion 2d of the container body 2 from above. The top wall portion 10a has a substantially annular plate shape. The top wall portion 10a has a nozzle portion 11 protruding upward from the top wall portion 10a. The nozzle part 11 has a cylindrical shape extending in the vertical direction, and a nozzle center axis (not shown) is located forward of the center axis C of the container.

The nozzle portion 11 has a liquid passage port 12 inside. That is, the cap body 10 has the liquid passage port 12 . The liquid passage port 12 penetrates the top wall portion 10a in the vertical direction to communicate the inside and the outside of the container body 2 . That is, the liquid passage port 12 extends vertically inside the nozzle portion 11 and opens at the upper end portion and the lower end portion of the nozzle portion 11 . The center (opening center) of the liquid passage port 12 corresponds to the nozzle central axis of the nozzle portion 11 . The center of the liquid passage port 12 is located forward of the central axis C of the container body 2 .
In the beverage container 100 of the present embodiment, the pressure inside the container body 2 is reduced by holding the nozzle portion 11 in the user's mouth and drinking the beverage.

The top wall portion 10a also has a vent hole 13 that penetrates the top wall portion 10a in the vertical direction and communicates the inside and the outside of the container body 2 with each other. That is, the cap main body 10 has the ventilation holes 13 . The vent hole 13 is arranged between the nozzle portion 11 (liquid passage port 12) and the first hinge 30 in the front-rear direction. In this embodiment, the vent hole 13 has a circular shape and is located on the rear side of the central axis C of the container.

In the closed state of the lid body 20 shown in FIG. In addition, in the open state of the lid 20 shown in FIG. 4, the liquid passage port 12 and the air vent 13 are opened upward.

As shown in FIG. 3, the peripheral wall portion 10b has a tubular shape extending downward from the outer peripheral portion of the top wall portion 10a. The peripheral wall portion 10b surrounds the mouth/neck portion 2c from the radially outer side to the entire circumferential direction. The lower end of the peripheral wall portion 10b faces or contacts the shoulder portion 2e from above with a gap therebetween. The peripheral wall portion 10b has a substantially cylindrical shape extending vertically so as to be continuous with the body portion 2b of the container body 2 .

The peripheral wall portion 10b has a female screw portion 15 on the inner peripheral surface of the peripheral wall portion 10b. The female threaded portion 15 is screwed with the male threaded portion 7 of the mouth/neck portion 2c. That is, the cap main body 10 is detachably attached to the outside of the mouth/neck portion 2c by screwing while covering the upper opening portion 2d of the container main body 2. As shown in FIG.

The cylindrical portion 14 has a cylindrical shape centered on the central axis C and extends downward from the top wall portion 10a. The cylindrical portion 14 has an annular shape surrounding the liquid passage port 12 when viewed from below. Specifically, when viewed from below, the cylindrical portion 14 surrounds the liquid passage port 12 from the radially outer side to the entire circumferential direction. The cylindrical portion 14 is inserted into the mouth/neck portion 2c.

As shown in FIGS. 3 and 5 , the tubular portion 14 has vertical ventilation grooves 16 and horizontal ventilation grooves 17 .
The vertical ventilation groove 16 is arranged at the rear end of the cylindrical portion 14 . The vertical ventilation groove 16 is recessed in the radial direction from the peripheral surface of the cylindrical portion 14 and extends downward from the ventilation hole 13 . In this embodiment, the vertical ventilation groove 16 is recessed radially inward from the outer peripheral surface of the cylindrical portion 14 and extends vertically. In the illustrated example, the vertical ventilation groove 16 is a circular groove with a concave arc shape in cross section. The upper end of the vertical ventilation groove 16 is connected to the lower end of the ventilation hole 13 .

The lateral ventilation groove 17 is arranged at the rear end portion of the cylindrical portion 14 . The lateral ventilation groove 17 is recessed upward from the lower end surface of the cylindrical portion 14 and extends in the radial direction. A radially outer end portion of the horizontal ventilation groove 17 is connected to a lower end portion of the vertical ventilation groove 16 . That is, the horizontal ventilation grooves 17 are connected to the ventilation holes 13 via the vertical ventilation grooves 16 . In the illustrated example, the horizontal ventilation groove 17 is a circular groove with a concave arc shape in cross section.

In the present embodiment, the radial dimension, that is, the wall thickness of the portion of the cylindrical portion 14 in which the vertical ventilation grooves 16 and the horizontal ventilation grooves 17 are arranged in the circumferential direction is larger than the wall thickness of portions other than the above-mentioned portions. The portion (thick portion) of the cylindrical portion 14 protrudes radially inward from the inner peripheral surface of the portion other than the portion.

As shown in FIG. 3 , the lid body 20 is arranged on the upper side of the cap body 10 . The lid body 20 is a member that covers the upper part of the cap body 10 and opens and closes the liquid passage port 12 and the ventilation hole 13 . The lid 20 has a portion made of a heat-resistant resin such as polypropylene (PP) (for example, portions other than the liquid passage sealing portion 21 and the ventilation sealing portion 22, which will be described later).
The lid body 20 has a lid top wall portion 20 a , a lid peripheral wall portion 20 b , a liquid passage sealing portion 21 , and a ventilation sealing portion 22 .

The lid top wall portion 20 a is arranged above the top wall portion 10 a of the cap body 10 . In this embodiment, the lid top wall portion 20a has a plate-like shape extending in the front-rear direction, and is inclined upward from the first hinge 30 toward the front side.

The lid top wall portion 20a includes a hole portion 20c that penetrates the lid top wall portion 20a in the vertical direction, and a hole portion 20c that protrudes downward from the lid top wall portion 20a and is arranged between the hole portion 20c and the first hinge 30 in the front-rear direction. and a support cylinder 20d.

The lid peripheral wall portion 20b has a tubular shape extending downward from the outer peripheral portion of the lid top wall portion 20a. The lid peripheral wall portion 20b is arranged to surround the top wall portion 10a of the cap body 10 .

The liquid-permeable sealing portion 21 is made of an elastic member such as heat-resistant rubber such as silicone rubber or elastomer. That is, the liquid sealing portion 21 is elastically deformable. The liquid-permeable sealing portion 21 is detachably attached to the lid top wall portion 20 a of the lid body 20 . The liquid-permeable sealing portion 21 is in liquid-tight contact with the upper opening of the nozzle portion 11 when the lid 20 is closed. As a result, the liquid passage sealing portion 21 closes the liquid passage port 12 so as to be openable from above. The liquid passage sealing portion 21 is a plug-like sealing member that closes the liquid passage port 12 of the nozzle portion 11 .

The liquid-permeable sealing portion 21 has a shaft portion 21a fitted into the hole portion 20c, and a substantially dome-shaped plug portion 21b connected to the lower end portion of the shaft portion 21a and projecting downward. The liquid-permeable sealing portion 21 is detachably attached to the hole portion 20c. Therefore, the lid body 20 and the liquid-permeable sealing part 21 can be washed separately, and the space between the lid body 20 and the liquid-permeable sealing part 21 can be kept sanitary.

In this cap unit 1A, when the lid body 20 is in the closed position shown in FIG. The plug portion 21b is brought into contact with the periphery of the opening of the liquid passage port 12 while being elastically deformed. As a result, the liquid passage port 12 of the nozzle portion 11 can be closed by the liquid passage sealing portion 21 .

The ventilation sealing portion 22 is made of an elastic member such as heat-resistant rubber such as silicone rubber or elastomer. That is, the ventilation sealing portion 22 is elastically deformable. The ventilation sealing portion 22 is detachably attached to the lid top wall portion 20 a of the lid body 20 . The ventilation sealing portion 22 liquid-tightly contacts the upper opening of the ventilation hole 13 when the lid 20 is closed. Thereby, the ventilation sealing part 22 closes the ventilation hole 13 from the upper side so as to be openable. The ventilation sealing part 22 is a bottomed cylindrical sealing member that closes the ventilation hole 13 .

The ventilation sealing portion 22 is fitted onto the support tube 20d. The ventilation sealing portion 22 is detachable from the support tube 20d. Therefore, the lid 20 and the ventilation sealing portion 22 can be washed separately, and the space between the lid 20 and the ventilation sealing portion 22 can be kept sanitary.

In this cap unit 1A, when the lid body 20 is in the closed position, the bottom of the ventilation sealing part 22 is brought into contact with the periphery of the opening of the ventilation hole 13, and the ventilation hole 13 is closed while the bottom part is elastically deformed. It will be in close contact with the surroundings of the opening. As a result, the ventilation hole 13 can be closed by the ventilation sealing portion 22 .

In addition, in this embodiment, the liquid permeable sealing portion 21 and the permeable sealing portion 22 are integrally formed of a single member. Therefore, the number of parts can be reduced, and the loss of members during cleaning can be suppressed.

The first hinge 30 connects the upper rear end portion of the cap body 10 and the rear end portion of the lid body 20 so as to be relatively rotatable about the hinge central axis A. As shown in FIG. A hinge center axis A of the first hinge 30 extends in the left-right direction. The lid body 20 is connected to the cap body 10 via the first hinge 30 so that the liquid passage port 12 and the vent hole 13 are closed (closed position) shown in FIG. It is rotatable between a position (open position) at which the port 12 and the ventilation hole 13 are opened.

Although not shown, the first hinge 30 has a torsion coil spring spirally extending around the central axis A of the hinge. The torsion coil spring urges the lid body 20 toward the opening direction with respect to the cap body 10 . That is, the cover 20 is given a biasing force in the opening direction about the hinge central axis A. As shown in FIG. Therefore, when the locked state by the lid lock mechanism 50 is released, the lid body 20 rotates from the closed position toward the open position.

As shown in FIG. 3 , the waterproof packing 40 is detachably attached inside the cap body 10 . The water stop packing 40 is a ring-shaped sealing member that seals (stops water) between the container body 2 and the cap body 10, and is made of, for example, a heat-resistant rubber such as silicone rubber or an elastic member such as an elastomer. That is, the waterproof packing 40 is elastically deformable. Specifically, the waterproof packing 40 of the present embodiment liquid-tightly seals the space between the upper opening 2d of the container body 2 and the top wall portion 10a of the cap body 10 .
In FIG. 3, part of the waterproof packing 40 is indicated by a chain double-dashed line (virtual line) as a shape before elastic deformation.

The water stop packing 40 is attached to the cap main body 10 while being fitted onto the cylindrical portion 14 . Also, the water stop packing 40 can be removed from the cylindrical portion 14 . Thereby, the cap main body 10 and the water stop packing 40 can be washed separately, and the space between the cap main body 10 and the water stop packing 40 can be kept sanitary.

The waterproof packing 40 includes a cylindrical packing peripheral wall 41 fitted onto the tubular portion 14 , and radially outwardly extending from the packing peripheral wall 41 to form an upper opening portion 2 d of the container body 2 and a top wall portion 10 a of the cap body 10 . and an extending collar portion 43 extending radially inward from the lower end portion of the packing peripheral wall 41 .

The packing peripheral wall 41 extends vertically about the central axis C and is fitted to the outer side of the cylindrical portion 14 . The inner peripheral surface of the packing peripheral wall 41 contacts the outer peripheral surface of the cylindrical portion 14 . Between the inner peripheral surface of the packing peripheral wall 41 and the vertical ventilation groove 16 of the cylindrical portion 14, a flow path (vertical ventilation path) through which air can flow is provided. The vertical air passage extends vertically and communicates with the air hole 13 . A lower end portion of the packing peripheral wall 41 protrudes below a lower end portion of the cylindrical portion 14 .

The seal flange 42 has a substantially annular plate shape centered on the central axis C. As shown in FIG. The seal flange 42 protrudes radially outward from the upper end portion of the packing peripheral wall 41 and extends in the circumferential direction.
As shown by a two-dot chain line in FIG. 3, in this embodiment, the seal flange 42 is arranged on the upper and lower sides of the groove portion 42a extending in the circumferential direction and recessed radially inward from the outer peripheral surface of the seal flange 42. and a pair of flange portions 42b. Therefore, the seal flange 42 has a substantially C-shaped or substantially U-shaped cross-sectional shape (vertical cross-sectional shape) parallel to the central axis C that opens radially outward.

The upper surface of the upper flange portion of the pair of flange portions 42b contacts the lower surface of the top wall portion 10a. That is, the upper surface of the seal flange 42 contacts the lower surface of the top wall portion 10a. The thickness (plate thickness) of one of the pair of flange portions 42 b is thinner than the thickness of the packing peripheral wall 41 . The pair of flanges 42b is particularly elastically deformable among the waterproof packings 40, and is easily brought into close contact with the upper opening 2d and the top wall 10a, thereby stably sealing the space therebetween.

The extending collar portion 43 is in the shape of an annular plate centered on the central axis C. As shown in FIG. The extended flange portion 43 protrudes radially inward from the lower end portion of the packing peripheral wall 41 and extends in the circumferential direction. The extended collar portion 43 is arranged directly below the peripheral wall of the tubular portion 14 . A gap is provided in the vertical direction between the upper surface of the extended collar portion 43 and the lower end surface of the tubular portion 14 . Therefore, when the waterproof packing 40 is assembled, the extended collar portion 43 is prevented from coming into contact with the lower end surface of the cylindrical portion 14 due to, for example, manufacturing errors of the members. It is possible to suppress the problem that the adhesion state of the contact becomes unstable.

In addition, the inner peripheral portion of the extended collar portion 43 is located in a portion of the cylindrical portion 14 other than the portion (the thick portion at the rear end of the cylindrical portion 14) where the vertical ventilation groove 16 and the horizontal ventilation groove 17 are arranged in the circumferential direction. On the other hand, it protrudes slightly radially inward or is flush. Therefore, when the user drinks the beverage, the beverage in the container body 2 tilted forward can easily climb over the inner peripheral portion of the extending flange portion 43 toward the liquid passage port 12, so that the beverage can pass through. Since the liquid smoothly flows out from the liquid port 12, it is easy to drink the beverage.

Between the upper surface of the extended collar portion 43 and the lateral ventilation groove 17 of the cylindrical portion 14, a channel (lateral ventilation channel) through which air can flow is provided. The lateral air passage extends radially. A radially outer end of the horizontal air passage is connected to the vertical air passage. That is, the horizontal air passage communicates with the air holes 13 via the vertical air passage. A radially inner end portion of the lateral air passage opens toward the inside of the cylindrical portion 14 and communicates with the interior of the container body 2 . As a result, the outside (the outside of the container, the outside of the cap) and the inside of the container body 2 are communicated with each other. , air is sucked into the container body 2 through the vent hole 13 .

The waterproof packing 40 covers the ventilation hole 13 when viewed from below. In other words, the vent hole 13 is covered with the waterproof packing 40 when viewed from below. Moreover, the waterproof packing 40 covers the vertical ventilation groove 16 (vertical ventilation path) and at least part of the horizontal ventilation groove 17 (horizontal ventilation path) when viewed from below. Further, the extended flange portion 43 faces the lateral ventilation groove 17 from below with a gap therebetween. That is, the water stop packing 40 faces the lateral ventilation groove 17 from below.

More specifically, at least the extending flange portion 43 of the waterproof packing 40 overlaps with the ventilation hole 13 when viewed from below. In the present embodiment, the packing peripheral wall 41 and the extended collar portion 43 of the waterproof packing 40 overlap with the ventilation holes 13 when viewed from below. The ventilation hole 13 is covered with the packing peripheral wall 41 and the extended collar portion 43 when viewed from below.

Also, the extended flange portion 43 overlaps the vertical ventilation groove 16 when viewed from below. The vertical ventilation groove 16 is covered with the extended flange portion 43 when viewed from below.
Further, the extended flange portion 43 overlaps the lateral ventilation groove 17 when viewed from below. At least a portion of the lateral ventilation groove 17 is covered with the extended collar portion 43 when viewed from below.

As shown in FIGS. 1, 3 and 4, the lid lock mechanism 50 applies a rotational biasing force in the opening direction around the first hinge 30 (hinge central axis A) to the lid body 20 with respect to the cap body 10. It resists and locks in the above-described closed position (closed state). The lid lock mechanism 50 is arranged at the front end of the cap unit 1A. 1 and 3 show a state (locked state) in which the lid body 20 is fixed at the closed position by the lid lock mechanism 50, and FIG. It shows the locked state (unlocked state).

The lid lock mechanism 50 includes a second hinge 55 having a hinge center axis (not shown) extending in the left-right direction, a lock member 52 swingable around the hinge center axis of the second hinge 55, and a hinge center of the second hinge 55. and a ring stopper 54 that is rotatable about an axis. The second hinge 55 also has an inner hinge portion 51 and outer hinge portions 53 positioned on both outer sides of the inner hinge portion 51 in the left-right direction. The inner hinge portion 51 and the outer hinge portion 53 are arranged coaxially with each other with the hinge central axis of the second hinge 55 as a common axis.

The lock member 52 is swingably attached to the cap body 10 via the inner hinge portion 51 . The ring stopper 54 is rotatably attached to the cap body 10 via the outer hinge portion 53 .

The inner hinge portion 51 is provided on the front surface of the peripheral wall portion 10 b of the cap body 10 . The inner hinge portion 51 is arranged inside the outer hinge portion 53 (that is, on the central axis C side) in the left-right direction. The lock member 52 is supported by the inner hinge portion 51 so as to be swingable in the front-rear direction. The lock member 52 has an upper arm portion 52 a extending upward from the hinge central axis of the second hinge 55 and a lower arm portion 52 b extending downward from the hinge central axis of the second hinge 55 . A hook portion 56 is provided on the tip portion of the upper arm portion 52a (the upper end portion of the lock member 52) so as to protrude rearward. A compression coil spring 57 is provided between the lower arm portion 52b and the peripheral wall portion 10b in a state of being compressed in the longitudinal direction.

The outer hinge portion 53 is provided on the front surface of the peripheral wall portion 10 b of the cap body 10 . The ring stopper 54 is composed of a curved, substantially C-shaped member, and both ends thereof are supported by the outer hinge portions 53 so as to be vertically rotatable.

The lid lock mechanism 50 also has a lock receiving portion 58 to which the hook portion 56 of the locking member 52 is locked, and a stopper receiving portion 59 to which the ring stopper 54 is locked. The lock receiving portion 58 has a claw shape that protrudes forward from the front lower end portion of the lid body 20 . The stopper receiving portion 59 has a substantially semicircular shape that fits the shape of the inner peripheral portion of the ring stopper 54 and protrudes forward from a position surrounding the lock receiving portion 58 on the front surface of the lid body 20 .

In this lid lock mechanism 50, when the lid body 20 is in the closed position, the hook portion 56 of the lock member 52 is engaged with the lock receiving portion 58, thereby allowing the lid body 20 to move in the opening direction of the first hinge 30. It is fixed to the cap main body 10 against the rotational biasing force.

From this state, the user pushes the lower arm portion 52 b of the lock member 52 rearward while compressing the compression coil spring 57 , thereby releasing the hook portion 56 from the lock receiving portion 58 . As a result, the lid body 20 biased in the opening direction can be rotated to the open position.

Further, in the lid lock mechanism 50, when the lid 20 is in the closed position, the ring stopper 54 is hooked on the stopper receiving portion 59, thereby preventing the lid 20 from rotating in the opening direction. As a result, the lid lock mechanism 50 can prevent the lid 20 from opening due to unnecessary (unintended) operation of the lock member 52 .

According to the cap unit 1A and the beverage container 100 of the present embodiment described above, the vent hole 13 of the cap body 10 is covered with the waterproof packing 40 when viewed from below. For this reason, for example, even if the beverage container 100 is violently tilted when drinking a beverage, or even if the beverage container 100 falls in an inverted posture and collides with the ground or the like, the beverage inside the container body 2 does not However, it is suppressed from vigorously entering into the ventilation hole 13.例文帳に追加That is, even when the beverage in the container body 2 vigorously moves in the direction of the cap unit 1A (that is, in the inverted direction), the waterproof packing 40 receives the impact of the beverage before it reaches the ventilation hole 13, thereby reducing the momentum of the beverage. Reduce. Therefore, when the lid 20 is open, the beverage can be prevented from leaking out through the ventilation hole 13, and when the lid 20 is closed, the beverage can be prevented from leaking out of the sealed portion between the ventilation hole 13 and the ventilation sealing portion 22. can be prevented from leaking out.

Moreover, in this embodiment, the water stop packing 40 that seals the space between the container body 2 and the cap body 10 is used to prevent the beverage from leaking through the ventilation holes 13 . In other words, by imparting a plurality of functions to the waterproof packing 40, an increase in the number of parts is suppressed. Specifically, in order to prevent the above-mentioned leakage, for example, it is necessary to newly provide a valve member that can open and close the ventilation hole, and to use a complicated structure that opens the valve member only when inhaling air from the ventilation hole. There is no
According to this embodiment, it is possible to suppress the leakage of the beverage from the ventilation hole 13, and to simplify the structure without adding a new member. Therefore, the washability of the container can be maintained satisfactorily, and an increase in cost can be suppressed.

As described above, according to the present embodiment, even when the beverage in the container body 2 vigorously moves toward the cap unit 1A, the simple structure can stably prevent the beverage from leaking out from the vent hole 13.

Further, in this embodiment, the waterproof packing 40 covers the vertical ventilation groove 16 (vertical ventilation path) together with the ventilation hole 13 from below. Therefore, when the beverage container 100 is vigorously tilted when drinking a beverage, or when a strong impact is applied to the container in an inverted direction, the beverage in the container main body 2 is urged by the waterproof packing 40. and the forceful entry into the ventilation holes 13 through the vertical ventilation grooves 16 is suppressed. Therefore, it is possible to more stably prevent the beverage from leaking out of the ventilation hole 13 .

Further, in the present embodiment, the waterproof packing 40 is arranged to face the lateral ventilation groove 17 (lateral ventilation path) from below. Therefore, when the beverage container 100 is violently tilted when drinking a beverage or when the container receives a strong impact in an inverted direction, the beverage in the container body 2 is dampened by the waterproof packing 40. Therefore, it is suppressed from vigorously entering the ventilation hole 13 from the horizontal ventilation groove 17 through the vertical ventilation groove 16. - 特許庁

Further, in the present embodiment, the waterproof packing 40 has a packing peripheral wall 41 , a seal flange 42 , and an extended collar portion 43 .
In this case, the seal flange 42 of the waterproof packing 40 seals the space between the upper opening 2 d of the container body 2 and the top wall 10 a of the cap body 10 , and the extended flange 43 allows the beverage to flow out of the ventilation hole 13 . can be stably suppressed from leaking out.
Further, when fitting the water stop packing 40 to the tubular portion 14, the extended collar portion 43 can be used as a pushing allowance, so that the water stop packing 40 can be easily pushed until it contacts the top wall portion 10a of the cap body 10. . In addition, when removing the water stop packing 40 from the cylindrical portion 14, the extended flange portion 43 can be used as a gripping margin, so the water stop packing 40 can be easily removed.

<Second embodiment>
Next, a cap unit 1B according to a second embodiment of the present invention and a beverage container 100 including the same will be described with reference to FIGS. 6 and 7. FIG. In addition, in this embodiment, the same names and symbols are assigned to the same configurations as in the above-described embodiment, and the description thereof is omitted.

The cap unit 1B of the present embodiment differs from the cap unit 1A described in the previous embodiment in the structures of the cylindrical portion 14 and the waterproof packing 40. As shown in FIG.

As shown in FIGS. 6 and 7 , in this embodiment, the vertical ventilation groove 16 of the cylindrical portion 14 is recessed radially outward from the inner peripheral surface of the cylindrical portion 14 and extends downward from the ventilation hole 13 . Further, in this embodiment, the cylindrical portion 14 does not have the lateral ventilation groove 17 (lateral ventilation path).

Further, the cylindrical portion 14 has a stepped surface 14a. The stepped surface 14a is located in a portion of the cylindrical portion 14 where the vertical ventilation groove 16 is arranged in the circumferential direction (the thick portion at the rear end of the cylindrical portion 14). The stepped surface 14a spreads inward from the inner peripheral surface of the cylindrical portion 14, is positioned above the lower end surface of the cylindrical portion 14, and faces downward. The step surface 14a has a planar shape extending in a direction perpendicular to the central axis C. As shown in FIG.

The ventilation hole 13 has a portion (upper portion) that penetrates the top wall portion 10a in the vertical direction, a portion (lower portion) that extends downward from this portion and is located within the thick portion of the cylindrical portion 14, have A lower end portion of the ventilation hole 13 opens to the stepped surface 14a. That is, in the present embodiment, a portion of the ventilation hole 13 extends vertically within the peripheral wall of the cylindrical portion 14 .

The extending collar portion 43 of the waterproof packing 40 has a laterally extending portion 43a and a longitudinally extending portion 43b.
The laterally extending portion 43 a extends radially inward from the lower end portion of the packing peripheral wall 41 . The laterally extending portion 43a has an annular plate shape centered on the central axis C. As shown in FIG. A gap is provided between the upper surface of the laterally extending portion 43 a and the lower end surface of the tubular portion 14 .

The longitudinally extending portion 43b protrudes upward from the inner peripheral portion of the laterally extending portion 43a. The longitudinally extending portion 43b has a cylindrical shape centered on the central axis C and extends in the vertical direction. A lower end portion of the cylindrical portion 14 is arranged between the longitudinally extending portion 43b and the packing peripheral wall 41 in the radial direction. The outer peripheral surface of the longitudinally extending portion 43b and the inner peripheral surface of the lower end portion of the cylindrical portion 14 are in contact with each other or face each other with a gap therebetween.

Between the outer peripheral surface of the longitudinally extending portion 43b and the longitudinal ventilation groove 16 of the cylindrical portion 14, a flow path (vertical ventilation path) through which air can flow is provided. The vertical air passage is connected with the lower end of the air hole 13 .
Further, in this embodiment, the upper end surface of the vertically extending portion 43b contacts the stepped surface 14a. As a result, the waterproof packing 40 seals the air hole 13 and the inside of the container body 2 so as to communicate with each other.

According to the cap unit 1B and the beverage container 100 of this embodiment described above, the same effects as those of the above-described embodiment can be obtained.

Further, in this embodiment, the elastically deformable waterproof packing 40 seals the air hole 13 and the inside of the container body 2 so as to communicate with each other.
In this case, the water cutoff packing 40 can more stably prevent the beverage from leaking out of the ventilation hole 13 . For example, even if the user holds the nozzle part 11 and tilts the beverage container 100 and it takes a long time to drink the beverage in the container body 2, the space between the vent hole 13 and the inside of the container body 2 is large. Since the vent hole 13 is sealed, it is possible to prevent the beverage from leaking out of the vent hole 13 . Then, the user holds the nozzle part 11 in his mouth and drinks the beverage in the container body 2 through the liquid passage port 12, and the inside of the container body 2 is decompressed, so that air is sucked into the container body 2 through the vent hole 13. In this case, the waterproof packing 40 is elastically deformed so that the outside and the inside of the container body 2 are communicated with each other through the vent holes 13 . Further, when the air intake into the container body 2 through the vent hole 13 is stopped, the waterproof packing 40 is restored and deformed, and the space between the vent hole 13 and the inside of the container body 2 is sealed again. That is, in the present embodiment, the waterproof packing 40 acts (functions) like an on-off valve, so the simple structure makes the above-described effects of the present invention more remarkable.

Further, in the present embodiment, since the rigidity of the extending flange portion 43 is further enhanced, when fitting the water stop packing 40 to the cylindrical portion 14, the extending flange portion 43 is used as a pushing margin, thereby increasing the water stop packing 40. is easier to push. In addition, when removing the water stop packing 40 from the cylindrical portion 14, the water stop packing 40 can be removed more easily by using the extended flange portion 43 with high rigidity as a gripping allowance.

<Third Embodiment>
Next, a cap unit 1C according to a third embodiment of the present invention and a beverage container 100 including the same will be described with reference to FIGS. 8 and 9. FIG. In addition, in this embodiment, the same names and symbols are assigned to the same configurations as in the above-described embodiment, and the description thereof is omitted.

A cap unit 1C of the present embodiment differs from the cap units 1A and 1B described in the above embodiments in the structure of the cylindrical portion 14 and the waterproof packing 40 .

As shown in FIGS. 8 and 9, in this embodiment, the cylindrical portion 14 does not have the vertical ventilation groove 16 (vertical ventilation path) and the horizontal ventilation groove 17 (lateral ventilation path). Further, the lower end surface of the thick portion at the rear end of the tubular portion 14 protrudes downward from the lower end surface of the portion of the tubular portion 14 other than the thick portion. The lower end surface of the thick portion of the cylindrical portion 14 is planar and extends in a direction perpendicular to the central axis C. As shown in FIG.

The vent hole 13 has a portion (upper portion) that vertically penetrates the top wall portion 10a and a portion (lower portion) that extends downward from this portion and vertically penetrates the thick portion of the cylindrical portion 14. ) and A lower end portion of the vent hole 13 opens to a lower end surface of the thick portion of the cylindrical portion 14 .

The extending flange portion 43 of the waterproof packing 40 protrudes radially inward from a portion of the cylindrical portion 14 other than the thick portion. In the illustrated example, the amount by which the extended collar portion 43 protrudes inward from the inner peripheral surface of the portion of the tubular portion 14 other than the thick portion is larger than the thickness of the portion. Therefore, the rigidity of the extending collar portion 43 is enhanced.

Further, the upper surface of the extended flange portion 43 contacts the lower end surface of the thick portion of the tubular portion 14 . As a result, the extended collar portion 43 closes the opening of the lower end portion of the vent hole 13 . That is, the water stop packing 40 seals the communication between the vent hole 13 and the inside of the container body 2 . Moreover, a gap is provided between the upper surface of the extended flange portion 43 and the lower end surface of the portion of the cylindrical portion 14 other than the thick portion.

According to the cap unit 1C and the beverage container 100 of this embodiment described above, the same effects as those of the above-described embodiment can be obtained.

It should be noted that the present invention is not limited to the above-described embodiments, and, for example, as described below, changes in configuration can be made without departing from the gist of the present invention.

In the first embodiment, an example in which a gap is provided between the upper surface of the extended flange portion 43 of the waterproof packing 40 and the lower end surface of the tubular portion 14 was given, but the present invention is not limited to this. That is, for example, when the manufacturing error of the member can be suppressed sufficiently small, the upper surface of the extended collar portion 43 and the lower end surface of the tubular portion 14 may be brought into contact with each other. In the first embodiment, since the lateral ventilation groove 17 (horizontal ventilation path) is provided in the lower end surface of the cylindrical portion 14, the upper surface of the extending collar portion 43 and the lower end surface of the cylindrical portion 14 are configured to contact each other. However, regardless of the amount of elastic deformation of the waterproof packing 40 , air is stably sucked into the container body 2 from the ventilation holes 13 via the vertical ventilation grooves 16 and the horizontal ventilation grooves 17 .

In the above-described embodiment, the cap main body 10 includes the nozzle portion 11 projecting upward from the top wall portion 10a of the cap main body 10, and the nozzle portion 11 vertically penetrating through the interior of the container main body 2 to connect the inside and the outside of the container main body 2. Although an example of having the communicating liquid passage port 12 has been given, the present invention is not limited to this. That is, by holding the nozzle portion 11 in one's mouth and drinking the beverage in the container body 2 through the liquid passage port 12, the same effect can be obtained even if the nozzle portion 11 is made of an elastic member. Although not shown, specifically, the cap body 10 includes an elastically deformable nozzle portion 11 that is detachably attached to the top wall portion 10a, and the container body 2 that vertically penetrates the inside of the nozzle portion 11. The present invention can be similarly applied to a structure including a liquid passage port 12 communicating between the inside and the outside, and a straw member continuously attached to the lower end of the liquid passage port 12 . In this case, the top wall portion 10a of the cap body 10, the nozzle portion 11 and the straw member are formed as separate members.

In the above-described embodiment, an example is given in which the present invention is applied to the beverage container 100 in which the container main body 2 having the vacuum insulation structure has heat and cold insulation functions, but the present invention is not limited to this. That is, the present invention can be widely applied to capped containers in which the cap unit is detachably attached to the mouth and neck portion of the container body.

The present invention may combine the configurations described in the above-described embodiments and modifications without departing from the gist of the present invention, and addition, omission, replacement, and other modifications of the configuration are possible. . Moreover, the present invention is not limited by the above-described embodiments and the like, but is limited only by the scope of the claims.

1A, 1B, 1C... cap unit, 2... container body, 2d... upper opening, 10... cap body, 10a... top wall part, 10b... peripheral wall part, 11... nozzle part, 12... liquid passage port, 13... passage Pore 14 Cylindrical portion 16 Vertical ventilation groove 17 Horizontal ventilation groove 20 Lid 22 Ventilation sealing portion 30 First hinge (hinge) 40 Waterproof packing 41 Packing peripheral wall , 42... Seal flange, 43... Extension flange, 100... Beverage container, C... Center shaft

Claims (9)

A cap unit attached to a container body having an open top,
a cap body that closes the upper opening of the container body and has a top wall and a peripheral wall;
a lid body arranged above the cap body;
a hinge that rotatably connects the lid body to the cap body;
a waterproof packing that seals between the container body and the cap body,
The cap body vertically penetrates the top wall portion to communicate between the inside and the outside of the container body, and has a liquid passage port and a vent hole covered by the lid body,
The vent is covered with the waterproof packing when viewed from below,
cap unit. the cap body has a tubular portion extending downward from the top wall portion and surrounding the liquid passage port when viewed from below;
The cylindrical portion has a vertical ventilation groove that is radially recessed from the peripheral surface of the cylindrical portion and extends downward from the ventilation hole,
The water stop packing further covers the vertical ventilation groove when viewed from below,
The cap unit according to claim 1. the cylindrical portion has a horizontal ventilation groove extending radially from a lower end surface of the cylindrical portion and recessed upwardly and connected to the vertical ventilation groove;
The water stop packing faces the horizontal ventilation groove from below,
The cap unit according to claim 2. the cap body has a tubular portion extending downward from the top wall portion and surrounding the liquid passage port when viewed from below;
The water stop packing is
a cylindrical packing peripheral wall fitted to the cylindrical portion;
an annular seal flange extending radially outward from the packing peripheral wall and sealing between an upper opening of the container body and a top wall of the cap body;
an extending flange extending radially inward from the lower end of the packing peripheral wall,
At least the extending collar portion of the waterproof packing overlaps the vent when viewed from below,
A cap unit according to any one of claims 1 to 3. The water stop packing is elastically deformable, and seals the air hole and the interior of the container body so as to communicate with each other.
A cap unit according to any one of claims 1 to 4. The center of the liquid passage port is located forward of the central axis of the container body,
The vent hole is located between the liquid passage port and the hinge in the front-rear direction,
A cap unit according to any one of claims 1 to 5. The cap main body is formed of a member separate from the top wall portion, and has an elastically deformable nozzle portion having the liquid passage hole therein.
A cap unit according to any one of claims 1 to 6. a cap unit according to any one of claims 1 to 7;
and the container body to which the cap unit is attached,
Beverage container. The container body has a vacuum insulation structure,
A beverage container according to claim 8 .

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