JP7613846B2 - Cap unit and container with cap - Google Patents

Description

The present invention relates to a cap unit and a container with a cap.

Conventionally, there have been capped containers equipped with a cap unit (stopper) that can be attached and detached to a container body that is open at the top (see, for example, Reference 1 below).

Specifically, the following cited document 1 discloses a structure in which an operating lever is provided on a cover that closes the upper opening of the plug body, and by pushing down this operating lever, a valve body that closes the flow path (flow passage) is pushed down in the opening direction against the bias of a coil spring.

JP 2013-248352 A

However, in the conventional capped containers described above, the valve body, coil spring, etc. are arranged inside the plug body, which not only makes the mechanism for opening and closing the valve body complicated, but also makes it difficult to clean the liquid passage.

In addition, conventional capped containers are not designed to allow the plug body to be disassembled for cleaning, and in order to maintain hygiene in the flow path, it is necessary to take the time and effort of cleaning the plug body carefully and thoroughly.

The present invention has been proposed in light of the above-mentioned conventional circumstances, and aims to provide a cap unit that simplifies the structure and improves washability, as well as a capped container that is equipped with such a cap unit, thereby enabling further improvements in usability.

In order to achieve the above object, the present invention provides the following means.
[1] A cap unit that can be detachably attached to a container body having an open top,
a cap body that closes an upper opening of the container body and has a flow path that communicates with the inside of the container body;
A lid body located on an upper side of the cap body;
an inside plug located at a lower portion of the cap body and attached to the cap body so as to be movable in a vertical direction relative to the cap body;
a first biasing member provided on an inside of the lid,
The cap body has a spout protruding forward from a front upper end portion thereof,
A pair of partition walls protruding rearward from the front inner peripheral surface in parallel with each other with a width corresponding to the spout ;
a liquid passage opening provided between the lower sides of the pair of partition walls,
The lid body includes a lid member attached to the cap body in a state where the lid member closes an upper portion of the cap body;
a first holding member that holds the first biasing member between the first holding member and the cover member;
a cover member rotatably attached to the lid member via a hinge portion in a state in which the cover member covers an upper portion of the first holding member,
When the cover member is moved downward against the bias of the first biasing member from a state in which the inside plug closes the flow path, the inside plug moves downward to a state in which the inside plug opens the flow path,
A flow path forming portion is provided on the front side of the lid member, the flow path forming portion forming a part of the flow path together with the pair of partition walls that divide a part of the flow path in the width direction between the spout and the liquid passage port,
The flow path forming portion includes an upper wall that covers a space between the upper sides of the pair of partition walls;
a rear wall covering a space between rear sides of the pair of partition walls;
a pair of side walls covering outer surfaces of the pair of partition walls;
The pair of partition walls, the upper wall, the rear wall, and the pair of side walls are engaged with each other to form a flow path from the liquid passage opening toward the spout,
The cap unit , wherein the flow path is provided so as to be separable between the cap body and the lid member .
[2] The inside plug comprises a plug body having a central hole;
a slide shaft that is attached to the plug so as to be slidable in the up and down direction while passing through the central hole toward the upper side;
A second biasing member that biases the plug downward relative to the slide shaft;
a second holding member that holds the second biasing member between the plug and the second holding member,
the slide shaft is attached to the first holding member in a state in which the tip end portion of the slide shaft projects upward beyond the first holding member while passing through shaft holes formed in the cap body, the lid member, and the first holding member, respectively;
The cap unit described in [1] is characterized in that, from a state in which the stopper body closes the lower side of the cap body, the cover member is rotated downward against the force of the first force member, so that the tip of the slide shaft abuts against the cover member, and the slide shaft slides downward, causing the stopper body to open the lower side of the cap body.
[3] The cap unit according to [1] or [2], wherein the cover member has an operating lever protruding from a rear end portion.
[4] The cap unit according to any one of [1] to [3] above;
A capped container comprising: a container body to which the cap unit is attached.
[5] The capped container according to [4], wherein the container body has a vacuum insulation structure.

As described above, according to the present invention, it is possible to provide a cap unit that simplifies the structure and improves cleanability, as well as a capped container that is equipped with such a cap unit, thereby enabling further improvements in usability.

1 is a perspective view showing the appearance of a capped container according to one embodiment of the present invention; 4 is a cross-sectional view showing a closed state of a cap unit provided on a capped container. FIG. 4 is a cross-sectional view showing an open state of a cap unit provided on a capped container. FIG. FIG. 2 is a perspective view of the cap body as viewed from below. FIG. 2 is an exploded perspective view showing a configuration of a cap unit. FIG. 2 is an exploded cross-sectional view showing the configuration of the cap unit. FIG. 2 is a perspective view showing a configuration of a cap body provided in the cap unit. FIG. 2 is an exploded perspective view showing the configuration of a lid body provided in the cap unit. 4 is a side view showing the configuration of an inside plug provided in the cap unit. FIG. 13 is a cross-sectional view of a main portion showing a state in which a slide shaft on an inside plug side is attached to a first holding member on a lid body side by screwing. FIG. 13 is a perspective view of a main part showing a locked state between a locking portion and a locked portion of a stopper mechanism provided in the cap unit. FIG. A cross-sectional view of a main part showing a state in which the plug body of the stopper mechanism provided in the cap unit is separated from the water-stopping gasket.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
As one embodiment of the present invention, a capped container 1 shown in, for example, FIGS. 1 to 12 will be described.

Note that FIG. 1 is a perspective view showing the appearance of the capped container 1. FIG. 2 is a cross-sectional view showing the closed state of the cap unit 3 provided in the capped container 1. FIG. 3 is a cross-sectional view showing the open state of the cap unit 3 provided in the capped container 1. FIG. 4 is a perspective view of the cap body 10 seen from the lower side. FIG. 5 is an exploded perspective view showing the configuration of the cap unit 3. FIG. 6 is an exploded cross-sectional view showing the configuration of the cap unit 3. FIG. 7 is a perspective view showing the configuration of the cap body 10 provided in the cap unit 3. FIG. 8 is an exploded perspective view showing the configuration of the lid body 11 provided in the cap unit 3. FIG. 9 is a side view showing the configuration of the inner plug 12 provided in the cap unit 3. FIG. 10 is a cross-sectional view of the main part showing the state in which the slide shaft 30 on the inner plug 12 side is attached by screwing to the first holding member 23 on the lid body 11 side. FIG. 11 is a perspective view of the main part showing the engagement state between the engagement portion 36a and the engaged portion 36b of the stopper mechanism 36 provided in the cap unit 3. FIG. 12 is a cross-sectional view of the main part showing the state in which the plug 29 of the stopper mechanism 36 of the cap unit 3 is separated from the water-stopping gasket 20.

As shown in FIG. 1, the capped container 1 of this embodiment includes a container body 2 and a cap unit 3 that can be detachably attached to the container body 2. The capped container 1 is a tabletop pot that can keep the beverage (contents) contained in the container body 2 hot or cold by the container body 2 having a vacuum insulation structure.

In addition, in the capped container 1 of this embodiment, the side on which the spout 15 described below is provided is regarded as the "front side," and the side on which the handle portion 8a, located opposite the spout 15, is provided is regarded as the "rear side."

As shown in Figs. 1 to 3, the container body 2 has a cylindrical outer container 4 and an inner container 5 with a bottom, made of, for example, stainless steel, and is configured as a double-structure container in which the mouths of the two containers are joined together while the inner container 5 is housed inside the outer container 4. In addition, a vacuum insulation layer 6 is provided between the outer container 4 and the inner container 5. The vacuum insulation layer 6 can be formed, for example, by blocking a degassing hole provided in the center of the bottom surface of the outer container 4 in a chamber that has been depressurized (evacuated) to a high vacuum.

The container body 2 has a substantially circular bottom 2a, a body 2b that stands up from the outer periphery of the bottom 2a in a substantially cylindrical shape, and a substantially cylindrical mouth and neck 2c that is tapered at the upper side of the body 2b. The upper end of the mouth and neck 2c opens in a circular shape as the upper opening 2d of the container body 2. The inner circumferential surface of the mouth and neck 2c is tapered in diameter more than the inner circumferential surface of the body 2b. Furthermore, a ring-shaped protrusion 7 is provided on the inner circumferential surface of the mouth and neck 2c, protruding all around.

The container body 2 of this embodiment has an overall cylindrical exterior shape with a tapered diameter at the upper side of the barrel portion 2b, but the exterior shape of the container body 2 is not particularly limited and can be modified as appropriate to suit the size, design, etc. In addition, the outer circumferential surface of the container body 2 may be painted, printed, etc.

The container body 2 has a structure in which a shoulder member 8 is attached to the mouth neck portion 2c. The shoulder member 8 is made of a resin molded body such as polypropylene (PP), acrylonitrile butadiene styrene (ABS), polyacetal (POM), etc., and is formed into a generally cylindrical shape.

The shoulder member 8 is attached to the mouth and neck portion 2c of the container body 2 via a sealing packing 9. The sealing packing 9 is a ring-shaped seal member that seals the gap between the mouth and neck portion 2c of the container body 2 and the shoulder member 8, and is made of an elastic material such as heat-resistant rubber or elastomer, for example silicone rubber. The shoulder member 8 is fitted to the mouth and neck portion 2c of the container body 2 so as to be flush with the outer peripheral surface of the trunk portion 2b of the container body 2, with the sealing packing 9 covering the mouth and neck portion 2c and upper opening 2d of the container body 2.

The shoulder member 8 is not limited to being fitted to the neck portion 2c of the container body 2 as described above, but can also be attached to the neck portion 2c (container body 2) by screwing so as to be detachable.

A handle portion 8a is provided on the rear side of the shoulder member 8 for the user to grasp. The handle portion 8a protrudes rearward from the outer periphery of the shoulder member 8 and extends downward. Note that the handle portion 8a is not necessarily limited to the above-mentioned configuration provided on the rear side of the container body 2, and it is also possible for the handle portion to be provided on the rear side of the cap unit 3.

As shown in Figures 1 to 9, the cap unit 3 of this embodiment includes a cap body 10, a lid body 11 located on the upper side of the cap body 10, and an inner plug 12 located on the lower side of the cap body 10.

As shown in Figures 2 to 7, the cap body 10 is made of a resin molded body such as PP, ABS, or POM, and has a bottom wall portion 10a that is approximately circular and recessed upward, and a peripheral wall portion 10b that rises in an approximately cylindrical shape from the outer periphery of the bottom wall portion 10a.

The cap body 10 is attached to the shoulder member 8 (container body 2) by screwing it in a removable manner. For this reason, a female thread portion 13 is provided on the inner peripheral surface of the shoulder member 8. Meanwhile, a male thread portion 14 that screws into the female thread portion 13 is provided on the outer peripheral surface of the peripheral wall portion 10b (cap body 10). By being attached to the shoulder member 8 (container body 2), the cap body 10 closes the upper opening 2d of the container body 2.

The cap body 10 is configured to be detachably attached to the shoulder member 8 described above, but if the shoulder member 8 is omitted, the cap body 10 may be configured to be detachably attached to the mouth neck portion 2c of the container body 2 by screwing.

A flow path R that communicates with the inside of the container body 2 is provided inside the cap body 10. The cap body 10 has a spout 15 that protrudes forward from the upper end of the front side of the peripheral wall portion 10b, a pair of partition walls 16 that protrude rearward from the inner peripheral surface of the front side of the peripheral wall portion 10b, a liquid passage port 17 that opens into the bottom wall portion 10a between the lower sides of the pair of partition walls 16, an air vent 18 that opens into the rear side of the bottom wall portion 10a, and a sleeve portion 19 that is provided in the center of the bottom wall portion 10a.

The spout 15 is a portion that pours the beverage in the container body 2 to the outside, and is formed of a groove that inclines diagonally upward and protrudes forward. A pair of partition walls 16 are portions that divide a part of the flow path R between the spout 15 and the liquid passage 17 in the width direction, and are provided to protrude parallel to each other between the spout 15 and the liquid passage 17. The liquid passage 17 is a portion that allows liquid to pass through the inside of the container body 2, and is formed of a hole that penetrates the front side of the bottom wall 10a. The vent hole 18 is a portion that allows air to pass through the inside of the container body 2, and is formed of a hole that penetrates the rear side of the bottom wall 10a. The sleeve portion 19 is a portion that supports the slide shaft 30 described later so that it can slide freely in the vertical direction, and is provided to protrude upward in an approximately cylindrical shape with an axial hole 19a that penetrates the bottom wall 10a.

The spout 15 is configured to be provided at the front upper end of the cap body 10, but it can also be configured to be provided at the front upper end of the shoulder member 8. If the spout 15 is configured to be provided at the shoulder member 8, then when the cap unit 3 is attached to the container body 2, a pair of upper wall portions 10d, which will be described later, can be configured to be continuous with the base end of the spout 15 provided at the shoulder member 8.

The upper part of the cap body 10 is provided with an upper flange portion 10c that protrudes in the radially expanding direction from the upper end of the peripheral wall portion 10b, and a pair of upper wall portions 10d that protrude upward from the upper surface of the upper flange portion 10c.

The upper flange portion 10c forms a step portion 10e around the entire circumference between it and the outer circumferential surface of the peripheral wall portion 10b. The pair of upper wall portions 10d are continuous with the base end portion of the spout 15 and are provided protruding rearward from the upper flange portion 10c while surrounding the periphery of the upper end portion of the peripheral wall portion 10b.

A watertight gasket 20 is detachably attached to the bottom of the cap body 10. The watertight gasket 20 is a ring-shaped sealing member that seals the space between the inside of the container body 2 and the cap body 10, and is made of an elastic material such as heat-resistant rubber, elastomer, etc., such as silicone rubber.

The lower part of the cap body 10 is provided with a lower peripheral wall 10f that protrudes downward from the bottom wall 10a in a generally cylindrical shape, and a lower flange portion 10g that protrudes from the outer periphery of the lower peripheral wall 10f in the radially expanding direction all around the circumference.

On the other hand, a ring-shaped fitting recess 20a is provided around the entire circumference of the inner peripheral surface of the watertight gasket 20. The watertight gasket 20 is detachably attached to the outer peripheral portion of the lower end side of the cap body 10 by fitting the lower flange portion 10g into this fitting recess 20a and fitting it to the outer peripheral surface of the lower peripheral wall 10f.

The outer peripheral surface of the watertight gasket 20 is provided with an elastic flange portion 20b that protrudes in the radial expansion direction all around. When the cap body 10 is attached to the container body 2, the watertight gasket 20 is in close contact with the protruding portion 7 of the container body 2 all around while the elastic flange portion 20b elastically deforms. This makes it possible to seal the gap between the protruding portion 7 (the inside of the container body 2) and the cap body 10.

On the other hand, the watertight gasket 20 can be removed from the cap body 10 by elastically deforming (pulling and stretching) itself. This allows the cap body 10 and the watertight gasket 20 to be washed separately, and the space between the cap body 10 and the watertight gasket 20 can be kept hygienic.

The watertight gasket 20 is not necessarily limited to the shape described above. For example, the number of elastic flange portions 20b is not limited to one as described above, but may be multiple. The shape of the elastic flange portions 20b may also be modified as appropriate.

As shown in Figures 2 to 6, 8 and 10, the lid body 11 is biased upward by a first coil spring 21 provided on the inside thereof and is attached to the cap body 10 so as to be freely movable in the vertical direction.

Specifically, the lid body 11 has a first coil spring 21, a lid member 22, a first holding member 23, and a cover member 24. The first coil spring 21 is made of a metal coil having excellent corrosion resistance, such as stainless steel, as a first biasing member. The lid member 22, the first holding member 23, and the cover member 24 are made of a resin molded body, such as PP, ABS, or POM.

The lid member 22 is formed in a generally elliptical plate shape so that it closes the upper part of the peripheral wall portion 10b when fitted inside the pair of upper wall portions 10d of the cap body 10.

A flow path forming section 25 that forms part of the flow path R is provided on the front side of the lid member 22 (lid body 11). The flow path forming section 25 has an upper wall 25a that covers the space between the upper sides of the pair of partition walls 16, a rear wall 25b that covers the space between the rear sides of the pair of partition walls 16, and a pair of side walls 25c that cover the outer surfaces of the pair of partition walls 16. The pair of partition walls 16, the upper wall 25a, the rear wall 25b, and the pair of side walls 25c engage with each other to form a flow path R that runs from the liquid passage port 17 toward the spout 15.

The lid member 22 is removably attached to the cap body 10 by engaging a pair of engagement grooves 16a formed on the outer surfaces of the pair of partition walls 16 with a pair of engagement protrusions 25d formed on the inner surfaces of the pair of side walls 25c.

The first holding member 23 has a generally circular top wall portion 23a, a generally cylindrical peripheral wall portion 23b that rises down from the outer periphery of the top wall portion 23a, and multiple (three in this embodiment) holes 23c that penetrate the top wall portion 23a.

The first holding member 23 also has a pair of guide protrusions 26 and a sleeve portion 27. The pair of guide protrusions 26 are provided protruding outward from opposing positions on the peripheral wall portion 23b.

The sleeve portion 27 is a portion to which the slide shaft 30 (described later) is attached detachably by screwing, and has an axial hole 27a penetrating the center of the top wall portion 23a, and is provided so as to protrude downward in a generally cylindrical shape. In addition, a pair of screw projections 27b protrude from the inside of the sleeve portion 27 (the inner peripheral surface of the axial hole 27a).

On the other hand, the cover member 22 is provided with an accommodation recess 22a that accommodates the first coil spring 21, an axial hole 22b that penetrates the center of the accommodation recess 22a, a pair of guide recesses 22c that guide the pair of guide protrusions 26 so that they can slide freely in the vertical direction, and a pair of abutment portions 22d that abut against the pair of guide protrusions 26 at the upper ends of the pair of guide recesses 22c.

The first retaining member 23 is attached to the cover member 22 by compressing the first coil spring 21 between the storage recess 22a and the top wall portion 23a while inserting the pair of guide protrusions 26 into the pair of guide recesses 22c.

As a result, the first holding member 23 holds the first coil spring 21 in a compressed state between it and the cover member 22. The first holding member 23 is also urged upward by the first coil spring 21 and is free to slide (move) up and down. The pair of guide protrusions 26 abut against the pair of abutment portions 22d, restricting the first holding member 23 from sliding (moving) upward relative to the cover member 22.

The cover member 24 is formed into a generally elliptical plate shape so as to cover the upper part of the lid member 22 and the first holding member 23 when fitted inside the pair of upper wall portions 10d of the cap body 10. In addition, an operating lever 24a that protrudes rearward is provided at the rear end of the cover member 24.

The cover member 24 is attached so as to be freely rotatable (movable) in the vertical direction via a hinge portion 28 provided between the cover member 24 and the lid member 22. The hinge portion 28 has a pair of engagement grooves 25e provided on the lid member 22 side and a pair of support shafts 24b provided on the cover member 24 side.

The pair of engagement grooves 25e are located on the outer surfaces of the pair of side walls 25c and are cut out obliquely downward and rearward from the upper ends of the pair of side walls 25c. The pair of support shafts 24b are provided protruding from the inner surfaces of a pair of arm portions 24c that protrude downward from the lower surface of the front side of the cover member 24.

The hinge portion 28 supports the cover member 24 rotatably relative to the lid member 22 by positioning the pair of support shafts 24b at the rear ends of the pair of engagement grooves 25e while engaging the pair of support shafts 24b with the pair of engagement grooves 25e. The cover member 24 is also detachably attached to the lid member 22 by the engagement between the pair of engagement grooves 25e and the pair of support shafts 24b that constitute the hinge portion 28.

The cover member 24 also has an elastic piece 24d that protrudes downward from the lower surface on the rear side, and a locking claw 24e that protrudes forward from the tip of the elastic piece 24d. Meanwhile, a locking hole 22e is provided on the rear side of the lid member 22. With the elastic piece 24d inserted into this locking hole 22e, the locking claw 24e is locked into the locking hole 22e, restricting the cover member 24 from rotating (moving) upward relative to the lid member 22.

As shown in Figures 2 to 6 and 9, the inner plug 12 is attached to the cap body 10 so that it can move freely in the vertical direction.

Specifically, the inner plug 12 has a plug body 29, a slide shaft 30, a second coil spring 31, and a second holding member 32. The second coil spring 31 is a second biasing member and is made of a metal coil having excellent corrosion resistance, such as stainless steel. The plug body 29, slide shaft 30, and second holding member 32 are made of a resin molded body, such as PP, ABS, or POM.

The plug 29 is generally formed in a disk shape so as to close the lower portion of the cap body 10. The plug 29 is also concave toward the top. A pair of walls 29a protrude downward from opposing positions on the outer periphery of the bottom side of the plug 29 for gripping when attaching or detaching the cap.

A sleeve portion 33 is provided in the center of the plug body 29. The sleeve portion 33 is a portion that supports the slide shaft 30 so that it can slide up and down, has a central hole 33a that passes through the plug body 29, and is provided so as to protrude upward in a generally cylindrical shape. The sleeve portion 33 is also disposed inside the second coil spring 31.

The slide shaft 30 has a shaft portion 30a and a head portion 30b at the lower end of the shaft portion 30a, and is attached so as to be freely slidable (movable) in the vertical direction relative to the plug body 29, with the shaft portion 30a penetrating the central hole 33a toward the upward side. In addition, the head portion 30b abuts against the underside of the plug body 29, thereby restricting the slide shaft 30 from sliding (moving) upward relative to the plug body 29.

The slide shaft 30 further has multiple (four in this embodiment) rib walls 30c protruding from the periphery of the base end side of the shaft portion 30a. Meanwhile, the inside of the sleeve portion 33 (the inner peripheral surface of the central hole 33a) is provided with multiple (four in this embodiment) guide grooves 33b into which the multiple rib walls 30c engage. This allows the center plug 12 to restrict the rotation of the plug body 29 around the axis relative to the shaft portion 30a (slide shaft 30).

The outer peripheral surface of the shaft portion 30a is provided with a pair of screw grooves 30d into which the pair of screw projections 27b are screwed, and a pair of locking grooves 30e into which the pair of screw projections 27b are locked. The pair of screw grooves 30d are formed by cutting out a spiral downward from the upper end side of the shaft portion 30a. The pair of locking grooves 30e are formed by cutting out an upward contiguous portion of the lower end of each screw groove 30d.

A shaft packing 34 is detachably attached to the shaft 30a. The shaft packing 34 is a ring-shaped seal member that seals the space between the shaft 30a (slide shaft 30) that passes through the shaft hole 19a of the sleeve 19 and the shaft hole 19a (cap body 10), and is made of an elastic material such as heat-resistant rubber or elastomer, for example silicone rubber.

The shaft packing 34 is fitted into a ring-shaped fitting recess 30f provided on the outer circumferential surface of the shaft 30a. In addition, an elastic flange portion 34a that is in close contact with the entire circumference of the shaft hole 19a is provided on the outer circumferential surface of the shaft packing 34 and protrudes in the radial direction.

A head packing 35 is detachably attached to the head 30b. The head packing 35 is a ring-shaped seal member that seals the space between the head 30b (slide shaft 30), which abuts against the periphery of the central hole 33a of the sleeve portion 33, and the central hole 33a (plug body 29), and is made of an elastic material such as a heat-resistant rubber such as silicone rubber or an elastomer. The head packing 35 is placed over the outer periphery of the head 30b.

The second holding member 32 has a generally circular top wall portion 32a, a generally cylindrical peripheral wall portion 32b that rises down from the outer periphery of the top wall portion 32a, and a slide hole 32c that passes through the center of the top wall portion 32a.

The second retaining member 32 is attached to the slide shaft 30 by passing the shaft portion 30a through the slide hole 32c while compressing the second coil spring 31 between the plug body 29 and the top wall portion 32a.

In addition, the second holding member 32 is restricted from sliding (moving) upward relative to the slide shaft 30 by abutting against abutment portions 30g provided between the upper ends of the multiple rib walls 30c.

As a result, the second holding member 32 holds the second coil spring 31 in a compressed state between it and the plug 29. The second holding member 32 is also urged upward by the second coil spring 31 and is free to slide (move) up and down. The second coil spring 31 also urges the plug 29 downward relative to the slide shaft 30.

Furthermore, the inner surface of the slide hole 32c is provided with multiple (four in this embodiment) guide grooves 32d into which the multiple rib walls 30c engage. This restricts the center plug 12 from rotating around the axis of the second holding member 32 relative to the shaft portion 30a (slide shaft 30).

In the cap unit 3 of this embodiment, as shown in Figures 2, 3, 6, and 10, the slide shaft 30 on the inner plug 12 side is attached detachably to the first holding member 23 on the lid body 11 side by screwing.

Specifically, the shaft portion 30a of the sliding shaft 30 passes through the shaft holes 19a, 22b, and 27a provided in the cap body 10, the lid member 22, and the first holding member 23, respectively, and the tip of the shaft portion 30a protrudes above the first holding member 23, and the sliding shaft 30 (inner plug 12) is attached to the first holding member 23 (lid body 11) by screwing it in a detachable manner.

The inner plug 12 can be attached to the first holding member 23 (lid 11) by rotating the slide shaft 30 together with the plug body 29 around one axis (clockwise in this embodiment) while screwing the pair of screwing projections 27b into the pair of screwing grooves 30d, and then engaging the pair of screwing projections 27b with the pair of engaging grooves 30e.

As a result, in the cap unit 3 of this embodiment, the lid body 11 and the inner plug 12 can be attached to the cap body 10. Also, in the cap unit 3 of this embodiment, the plug body 29 is in close contact with the watertight gasket 20 all around, so that the plug body 29 (inner plug 12) closes the lower side of the cap body 10.

On the other hand, the inner plug 12 can be removed from the first holding member 23 (lid body 11) by rotating the slide shaft 30 together with the plug body 29 around an axis in the opposite direction to the first direction (counterclockwise in this embodiment). As a result, in the cap unit 3 of this embodiment, the lid body 11 and the inner plug 12 can be removed from the cap body 10 and disassembled.

In addition, as shown in Figures 11 and 12, the cap unit 3 of this embodiment is equipped with a stopper mechanism 36 that prevents the stopper body 29 (inner plug 12) from rotating around its axis relative to the cap body 10 when the stopper body 29 (inner plug 12) closes the lower side of the cap body 10.

The stopper mechanism 36 has at least one or more (two in this embodiment) engaging portions 36a provided on the surface (upper surface) of the plug 29 facing the cap body 10, and at least one or more (two in this embodiment) engaged portions 36b provided on the surface (lower surface) of the cap body 10 facing the plug 29.

The locking portion 36a is composed of a wall portion protruding from the upper surface side of the plug body 29. The locking portion 36a extends in the radial direction of the plug body 29, and is provided so that its upper end protrudes radially to the same height as the inclined upper surface of the plug body 29. The locking portion 36a is also provided in a position symmetrical with respect to the central hole 33a of the plug body 29.

The interlocking portion 36b is configured as a groove that cuts out a part of the lower peripheral wall 10f that protrudes from the underside of the cap body 10. One end (left end) of the interlocking portion 36b in one direction is configured as a vertical surface, and the other end (right end) is configured as an inclined surface. In addition, the interlocking portion 36b is provided in a position that is symmetrical with respect to the axial hole 19a of the cap body 10.

When the stopper mechanism 36 is in a state where the stopper body 29 (inner plug 12) closes the lower side of the cap body 10, the locking portion (wall portion) 36a locks into the locked portion (groove portion) 36b, thereby restricting the stopper body 29 (inner plug 12) from rotating around its axis relative to the cap body 10.

This makes it possible to prevent the plug body 29 (inner plug 12) from being rotated around its axis when attaching or detaching the cap unit 3 to the container body 2, causing the slide shaft 30 (inner plug 12) to be unscrewed from the first holding member 23 (lid body 11).

On the other hand, in the stopper mechanism 36, when the stopper body 29 (inner plug 12) opens the lower side of the cap body 10, the locking portion (wall portion) 36a is released from the locked portion (groove portion) 36b. This makes it possible to easily rotate the stopper body 29 (inner plug 12) around its axis relative to the cap body 10.

In addition, with the stopper mechanism 36, when the plug 29 (inner plug 12) is rotated around its axis relative to the cap body 10, the engaging portion (wall portion) 36a slides against the lower end of the lower peripheral wall 10f while the plug 29 is separated from the water-stopping gasket 20. This makes it possible to easily rotate the plug 29 (inner plug 12) around its axis relative to the cap body 10 without the plug 29 (inner plug 12) coming into contact with the water-stopping gasket 20.

In addition, in the stopper mechanism 36, as long as the above-mentioned locking portion 36a is configured to lock with the locked portion 36b, the configuration of the locking portion 36a and the locked portion 36b can be changed as appropriate, without being limited to the case where the locking portion 36a is configured as a wall portion and the locked portion 36b is configured as a groove portion.

In the cap unit 3 of this embodiment having the above configuration, the plug 29 (inner plug 12) closes the lower side of the cap body 10, thereby blocking the flow path R. From this state, while holding the handle 8a with one hand, the operating lever 24a is pressed downward with the thumb or the like.

At this time, from the state where the tip of the slide shaft 30 is in contact with the cover member 24, the cover member 24 (lid body 11) rotates (moves) downward against the force of the first coil spring 21, causing the slide shaft 30 (inner plug 12) to slide (move) downward. As a result, the plug body 29 (inner plug 12) opens the lower side of the cap body 10, and the flow path R is opened.

When the plug 29 (inner plug 12) is subjected to pressure inside the container body 2, the slide shaft 30 (inner plug 12) slides (moves) downward, causing the head 30b to open the lower side of the central hole 33a against the force of the second coil spring 31, and ventilation is established with the inside of the container body 2 through the ventilation hole 18.

In the cap unit 3 of this embodiment, by tilting the container body 2 forward from this state, the beverage contained in the container body 2 can be poured out from the spout 15 through the open flow path R.

On the other hand, in the cap unit 3 of this embodiment, by releasing the pressing operation of the above-mentioned operating lever 24a, the cover member 24 (lid body 11) biased by the first coil spring 21 rotates (moves) upward. Also, the slide shaft 30 (inner plug 12) biased by the first coil spring 21 slides (moves) upward. As a result, the plug body 29 (inner plug 12) closes the lower side of the cap body 10, and the flow path R becomes closed.

In addition, as the slide shaft 30 (inner plug 12) slides (moves) upward, the head 30b biased by the second coil spring 31 closes the lower side of the central hole 33a.

In the cap unit 3 of this embodiment, the above-mentioned lid member 22 (lid body 11) is provided with a flow path forming portion 25 that forms part of the flow path R. This makes it possible to prevent the beverage in the flow path R from flowing inside the lid body 11 (specifically, between the lid member 22 and the cover member 24), and also makes it possible to maintain the hygiene of the flow path R.

In addition, in the cap unit 3 of this embodiment, when the inner plug 12 opens the flow path R, the inner plug 12 is detachable from the lid body 11. Specifically, when the plug body 29 (inner plug 12) opens the lower side of the cap body 10, the slide shaft 30 on the inner plug 12 side is detachable from the first holding member 23 on the lid body 11 side by screwing.

As a result, in the cap unit 3 of this embodiment, with the plug 29 (inner plug 12) opening the lower side of the cap body 10, the lid body 11 and inner plug 12 can be removed from the cap body 10, and the cap unit 3 can be easily disassembled.

Therefore, in this cap unit 3, it is possible to easily clean the flow path R when the cap body 10, the lid body 11, and the inner plug 12 are disassembled. In addition, because these can be washed separately when disassembled, it is possible to keep the spaces between the cap body 10, the lid body 11, and the inner plug 12 hygienic.

As described above, the cap unit 3 of this embodiment can simplify the structure and improve cleanability. Therefore, by providing the capped container 1 of this embodiment with such a cap unit 3, it is possible to further improve usability.

The present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the above embodiment illustrates a capped container 1 applied to the above-mentioned tabletop pot, but the present invention can be widely applied to capped containers equipped with a cap unit that can be freely attached and detached to a container body having an open top.

In addition, the above embodiment illustrates a capped container 1 that has a heat retention/cold retention function due to the container body 2 having the above-mentioned vacuum insulation structure, but the present invention can also be applied to a capped container that has a container body that does not have a vacuum insulation structure.

1...Container with cap 2...Container body 3...Cap unit 8...Shoulder member 8a...Handle 10...Cap body 11...Lid 12...Inner plug 15...Spout 16...Partition wall 17...Fluid passage 21...First coil spring (first biasing member) 22...Lid member 23...First holding member 24...Cover member 24a...Operating lever 25...Flow path forming portion 25a...Upper wall 25b...Rear wall 28...Hinge portion 29...Plug body 30...Slide shaft 31...Second coil spring (second biasing member) 32...Second holding member 36...Stopper mechanism 36a...Engagement portion 36b...Engaged portion R...Flow path

Claims (5)

A cap unit that can be detachably attached to a container body having an open top,
a cap body that closes an upper opening of the container body and has a flow path that communicates with the inside of the container body;
A lid body located on an upper side of the cap body;
an inside plug located at a lower portion of the cap body and attached to the cap body so as to be movable in a vertical direction relative to the cap body;
a first biasing member provided on an inside of the lid,
The cap body has a spout protruding forward from a front upper end portion thereof,
A pair of partition walls protruding rearward from the front inner peripheral surface in parallel with each other with a width corresponding to the spout ;
a liquid passage opening provided between the lower sides of the pair of partition walls,
The lid body includes a lid member attached to the cap body in a state where the lid member closes an upper portion of the cap body;
a first holding member that holds the first biasing member between the first holding member and the cover member;
a cover member rotatably attached to the lid member via a hinge portion in a state in which the cover member covers an upper portion of the first holding member,
When the cover member is moved downward against the bias of the first biasing member from a state in which the inside plug closes the flow path, the inside plug moves downward to a state in which the inside plug opens the flow path,
A flow path forming portion is provided on the front side of the lid member, the flow path forming portion forming a part of the flow path together with the pair of partition walls that divide a part of the flow path in the width direction between the spout and the liquid passage port,
The flow path forming portion includes an upper wall that covers a space between the upper sides of the pair of partition walls;
a rear wall covering a space between rear sides of the pair of partition walls;
a pair of side walls covering outer surfaces of the pair of partition walls;
The pair of partition walls, the upper wall, the rear wall, and the pair of side walls are engaged with each other to form a flow path from the liquid passage opening toward the spout,
The cap unit , wherein the flow path is provided so as to be separable between the cap body and the lid member . The inside plug comprises a plug body having a central hole;
a slide shaft that is attached to the plug so as to be slidable in the up and down direction while passing through the central hole toward the upper side;
A second biasing member that biases the plug downward relative to the slide shaft;
a second holding member that holds the second biasing member between the plug and the second holding member,
the slide shaft is attached to the first holding member in a state in which the tip end portion of the slide shaft projects upward beyond the first holding member while passing through shaft holes formed in the cap body, the lid member, and the first holding member, respectively;
The cap unit described in claim 1, characterized in that when the cover member is rotated downward against the force of the first force member from a state in which the plug body closes the lower side of the cap body, the tip of the slide shaft abuts against the cover member, and the slide shaft slides downward, causing the plug body to open the lower side of the cap body. The cap unit according to claim 1 or 2, characterized in that the cover member has an operating lever protruding from the rear end. A cap unit according to any one of claims 1 to 3;
A capped container comprising: a container body to which the cap unit is attached. The capped container according to claim 4, characterized in that the container body has a vacuum insulation structure.

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