Cap unit and container with cap

Abstract

The present application provides a cover unit capable of simplifying the structure and improving the cleaning performance. The cover unit comprises a cover body (10) closing an upper opening portion (2d) of a container body (2) and provided with a flow path (R) communicating with the inside of the container body (2); a cover (11) located on the upper side of the cover body (10) and movably installed in the up-down direction relative to the cover body (10); a middle peg (12) located on the lower side of the cover body (10) and movably installed in the up-down direction relative to the cover body (10); and a first force applying member (21) applying force to the cover (11) and the middle peg (12) towards the upper side, starting from the state that the middle peg closes the flow path, the cover is moved towards the lower side against the force applied by the first force applying member, thereby the middle peg is moved towards the lower side and becomes the state that the middle peg opens the flow path, and the first force applying member is arranged on the inside of the cover.

Description

Technical Field

[0001] This invention relates to lid units and lidded containers. Background Technology

[0002] Previously, there were covered containers with a cap unit (plug) that could be detachably installed on the container body with an opening at the top (for example, see reference 1 below).

[0003] Specifically, the following structure is disclosed in reference 1: an operating handle is provided on the cover of the upper opening of the shut-off valve body, and by pressing down the operating handle, the valve body that closes the flow path (flow path) is pressed down in the opening direction against the force of the helical spring.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2013-248352

[0005] However, in the aforementioned conventional covered containers, the structure used to house the valve body, helical spring, etc., inside the plug body has the problems of not only a complex mechanism for opening and closing the valve body, but also poor cleanability of the flow passage.

[0006] In addition, in the past, the plug body was not disassembled for cleaning in the capped container. In order to keep the flow path clean, it was necessary to spend a lot of time cleaning the plug body. Summary of the Invention

[0007] The present invention was made in view of the prior art, and its object is to provide a lid unit that simplifies construction and improves cleanability, and a lidded container that further improves ease of use by having such a lid unit.

[0008] To achieve the above objectives, the present invention provides the following apparatus.

[0009] [1] A cover unit, detachably installable relative to a container body with an upper opening, characterized in that it comprises: a cover body that closes the upper opening of the container body and is provided with a flow path communicating with the inner side of the container body; a cover body located on the upper side of the cover body and movably installed relative to the cover body in a vertical direction; a middle plug located on the lower side of the cover body and movably installed relative to the cover body in a vertical direction; and a first force-applying member that applies force to the cover body and the middle plug toward an upward side, and from the state where the middle plug closes the flow path, causes the cover body to move downward against the force of the first force-applying member, thereby causing the middle plug to move downward while the middle plug opens the flow path, and the first force-applying member is provided on the inner side of the cover body.

[0010] [2] According to the cover unit described in [1] above, the cover body has: a cover member which is installed on the cover body when the upper side of the cover body is closed; a first retaining member which retains the first force-applying member between itself and the cover member; and a cover member which is rotatably installed on the cover member via a hinge when it covers the upper part of the first retaining member.

[0011] [3] According to the cover unit described in [2] above, the middle bolt has the following characteristics: a bolt body having a central hole; a sliding shaft that is slidably mounted relative to the bolt body in the vertical direction with the central hole passing through it in the upward direction; a second force-applying member that applies force to the bolt body in the downward direction relative to the sliding shaft; and a second retaining member that retains the second force-applying member between itself and the bolt body. The sliding shaft is mounted on the first retaining member with the shaft holes of the cover body, the cover member, and the first retaining member passing through them respectively, and the front end of the sliding shaft protruding upwards from the first retaining member. Starting from the state where the bolt closes the lower side of the cover body, the cover member rotates downwards against the force of the first force-applying member. Thus, with the front end of the sliding shaft already abutting the cover member, the sliding shaft slides downwards while the bolt opens the lower side of the cover body.

[0012] [4] The cover unit according to [3] above is characterized in that the sliding shaft is installed in a manner that allows it to rotate in one direction integrally with the bolt body while being detachable from the first retaining member by means of a threaded engagement.

[0013] [5] The cover unit according to any one of [2] to [4] above is characterized in that the cover component has an operating handle protruding from the rear end.

[0014] [6] A lidded container, characterized in that it comprises: a lid unit as described in any one of [1] to [5] above; and a container body on which the lid unit is mounted.

[0015] [7] The lidded container according to [6] above is characterized in that a handle portion protruding rearward and extending downward is provided on the rear side of the container body or the lid unit.

[0016] [8] The lidded container according to [6] or [7] above is characterized in that the container body has a vacuum insulation structure.

[0017] As described above, according to the present invention, it is possible to provide a lid unit that simplifies construction and improves cleanability, as well as a lidded container that further enhances ease of use by having such a lid unit. Attached Figure Description

[0018] Figure 1 This is a perspective view showing the appearance of a lidded container according to an embodiment of the present invention.

[0019] Figure 2 It is a cross-sectional view showing the closed state of the lid unit of a covered container.

[0020] Figure 3 It is a cross-sectional view showing the open state of the lid unit of a covered container.

[0021] Figure 4 This is a three-dimensional view of the main body of the cover from below.

[0022] Figure 5 It is an exploded three-dimensional diagram showing the structure of the cover unit.

[0023] Figure 6 This is a anatomical view showing the structure of the cover unit.

[0024] Figure 7 It is a three-dimensional diagram showing the structure of the cover body of the cover unit.

[0025] Figure 8 It is an exploded three-dimensional diagram showing the structure of the cover body of the cover unit.

[0026] Figure 9 This is a side view showing the structure of the central bolt in the cover unit.

[0027] Figure 10 This is a partial cross-sectional view showing the state in which the first retaining component on the cover side is installed with the sliding shaft on the bolt side via a threaded connection.

[0028] Figure 11 This is a perspective view of the main parts showing the locking state of the locking part and the locked part of the limiting mechanism of the cover unit.

[0029] Figure 12 This is a sectional view of the main part showing that the plug of the limiting mechanism of the cover unit has been separated from the water-stop liner.

[0030] Explanation of reference numerals in the attached figures

[0031] 1…Lidded container; 2…Container body; 3…Lid unit; 8…Shoulder component; 8a…Handle; 10…Lid body; 11…Lid body; 12…Middle plug; 15…Pour port; 16…Separator wall; 17…Liquid inlet; 21…First helical spring (first force-applying component); 22…Lid component; 23…First retaining component; 24…Cover component; 24a…Operating handle; 25…Flow path forming part; 25a…Upper wall; 25b…Rear wall; 28…Hinge part; 29…Plug body; 30…Sliding shaft; 31…Second helical spring (second force-applying component); 32…Second retaining component; 36…Limiting mechanism; 36a…Locking part; 36b…Locking part; R…Flow path. Detailed Implementation

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] As one embodiment of the present invention, for example, for... Figures 1-12 The lidded container 1 shown is described below.

[0034] also, Figure 1 This is a perspective view showing the appearance of the lidded container 1. Figure 2 This is a cross-sectional view showing the closed state of the lid unit 3 of the lidded container 1. Figure 3 This is a cross-sectional view showing the open state of the lid unit 3 of the lidded container 1. Figure 4 This is a perspective view of the cover body 10 from the bottom side. Figure 5 This is an exploded perspective view showing the structure of cover unit 3. Figure 6 This is a anatomical view showing the structure of cover unit 3. Figure 7 This is a perspective view showing the structure of the cover body 10 of the cover unit 3. Figure 8 This is an exploded perspective view showing the structure of the cover body 11 of the cover unit 3. Figure 9 This is a side view showing the structure of the central bolt 12 in the cover unit 3. Figure 10 This is a main section view showing the state in which the first retaining member 23 on the cover 11 side is threadedly engaged with the sliding shaft 30 on the bolt 12 side. Figure 11 This is a perspective view of the main parts showing the locking state of the locking part 36a and the locked part 36b of the limiting mechanism 36 provided by the cover unit 3. Figure 12 This is a partial cross-sectional view showing the state in which the bolt 29 of the limiting mechanism 36 of the cover unit 3 has been separated from the water-stopping gasket 20.

[0035] like Figure 1As shown, the lidded container 1 of this embodiment includes: a container body 2, and a lid unit 3 that can be detachably installed on the container body 2. The lidded container 1 is a tabletop flask that can keep the beverage (contents) contained in the container body 2 warm or cold through the container body 2 having a vacuum insulation structure.

[0036] Furthermore, in the lidded container 1 of this embodiment, the side with the pouring port 15 (described later) is designated as the "front side", and the side with the handle portion 8a located on the opposite side of the pouring port 15 is designated as the "rear side".

[0037] like Figures 1-3 As shown, the container body 2 is, for example, a double-structured container having a bottomed cylindrical outer container 4 made of stainless steel or the like and an inner container 5, with the inner container 5 housed inside the outer container 4 and their corners joined together. Furthermore, 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 sealing an exhaust vent located at the center of the bottom surface of the outer container 4 within a chamber that has been depressurized (evacuated) to a high vacuum.

[0038] The container body 2 has: a generally circular bottom 2a, a generally cylindrical body portion 2b rising from the outer periphery of the bottom 2a, and a generally cylindrical neck portion 2c that is tapered at the upper part of the body portion 2b. The upper end of the neck portion 2c serves as the upper opening 2d of the container body 2 and has a circular opening. Furthermore, the inner circumferential surface of the neck portion 2c is tapered compared to the inner circumferential surface of the body portion 2b. An annular protrusion 7 is provided protruding throughout the entire circumference of the inner circumferential surface of the neck portion 2c.

[0039] Furthermore, although the container body 2 of this embodiment has a generally cylindrical shape with a reduced diameter at the upper part of the body portion 2b, the shape of the container body 2 is not particularly limited and can be appropriately modified according to size, appearance design, etc. In addition, painting, printing, etc. can also be performed on the outer peripheral surface of the container body 2.

[0040] The container body 2 has a structure in which a shoulder component 8 is installed at the neck 2c. The shoulder component 8 is made of resin molded materials such as polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), and polyoxymethylene (POM), and is generally cylindrical in shape.

[0041] The shoulder component 8 is installed on the neck 2c of the container body 2 via a sealing gasket 9. The sealing gasket 9 is an annular sealing component that seals the neck 2c of the container body 2 with the shoulder component 8, and is made of, for example, heat-resistant rubber such as silicone rubber, or an elastic component such as an elastomer. With the sealing gasket 9 covering the neck 2c and the upper opening 2d of the container body 2, the shoulder component 8 is fitted into the neck 2c of the container body 2 in a manner that aligns with the outer peripheral surface of the body portion 2b of the container body 2.

[0042] Furthermore, the shoulder component 8 is not limited to the structure described above that is embedded in the neck 2c of the container body 2, but can also be a structure that can be detachably installed relative to the neck 2c (container body 2) by means of a threaded connection.

[0043] A handle portion 8a for the user to hold is provided on the rear side of the shoulder member 8. The handle portion 8a protrudes rearward and extends downward from the outer periphery of the shoulder member 8. Furthermore, the handle portion 8a is not necessarily limited to the structure provided on the rear side of the container body 2 as described above, and it is also possible to provide a handle portion on the rear side of the lid unit 3.

[0044] like Figures 1-9 As shown, the cover unit 3 of this embodiment includes: a cover body 10, a cover body 11 located on the upper side of the cover body 10, and a middle bolt 12 located on the lower side of the cover body 10.

[0045] like Figures 2-7 As shown, the cover body 10 is made of resin molded material such as PP, ABS, or POM, and has a generally circular bottom wall portion 10a that is recessed upwards, and a generally cylindrical peripheral wall portion 10b that rises from the outer periphery of the bottom wall portion 10a.

[0046] The cap body 10 is detachably mounted to the shoulder member 8 (container body 2) via a threaded engagement. Therefore, an internal thread portion 13 is provided on the inner circumferential surface of the shoulder member 8. On the other hand, an external thread portion 14, which threadedly engages with the internal thread portion 13, is provided on the outer circumferential surface of the peripheral wall portion 10b (cap body 10). The cap body 10 is mounted to the shoulder member 8 (container body 2), thereby closing the upper opening 2d of the container body 2.

[0047] Furthermore, the cover body 10 is the structure described above that can be detachably installed relative to the shoulder member 8. However, if the structure of the shoulder member 8 is omitted, any structure that allows the cover body 10 to be detachably installed relative to the neck 2c of the container body 2 via a threaded connection is acceptable.

[0048] A flow path R communicating with the inner side of the container body 2 is provided on the inner side of the cap body 10. The cap body 10 has: a pouring port 15 protruding forward from the upper end of the front side of the peripheral wall portion 10b; a pair of partition walls 16 protruding rearward from the inner peripheral surface of the front side of the peripheral wall portion 10b; a liquid inlet 17 provided by opening the bottom wall portion 10a between the lower sides of the pair of partition walls 16; a vent 18 provided by opening the rear side of the bottom wall portion 10a; and a sleeve portion 19 provided in the center of the bottom wall portion 10a.

[0049] The pouring spout 15 is the part that pours the beverage from the container body 2 outwards, and is composed of a groove that slopes upwards and protrudes forward. A pair of partition walls 16 are portions that divide a portion of the flow path R along the width direction between the pouring spout 15 and the liquid inlet 17, extending across the space between the pouring spout 15 and the liquid inlet 17, and protruding parallel to each other. The liquid inlet 17 is the part that allows liquid to flow into the inside of the container body 2, and is composed of a hole that penetrates the front side of the bottom wall portion 10a. The vent 18 is the part that allows air to flow into the inside of the container body 2, and is composed of a hole that penetrates the rear side of the bottom wall portion 10a. The sleeve portion 19 is the part that slidably supports the sliding shaft 30 (described later) in the vertical direction, has a shaft hole 19a that penetrates the bottom wall portion 10a, and protrudes upwards in a generally cylindrical shape.

[0050] Furthermore, the pouring port 15 can be located at the upper end of the front side of the cap body 10, but it can also be located at the upper end of the front side of the shoulder member 8. When the pouring port 15 is located on the shoulder member 8, it is only necessary that, when the cap unit 3 is already installed on the container body 2, the pair of upper wall portions 10d (described later) are continuous with the base end of the pouring port 15 located on the shoulder member 8.

[0051] The upper part of the cover body 10 is provided with an upper flange portion 10c that protrudes from the upper end of the peripheral wall portion 10b along the expansion direction, and a pair of upper wall portions 10d that protrude upward from the upper surface of the upper flange portion 10c.

[0052] The upper flange portion 10c has a stepped portion 10e formed throughout its entire circumference between the outer peripheral surface of the flange portion 10b and the peripheral wall portion 10b. A pair of upper wall portions 10d are continuous with the base end of the pouring port 15 and, while surrounding the upper end of the peripheral wall portion 10b, protrude rearward from the upper flange portion 10c.

[0053] A water-stop gasket 20 is detachably installed on the lower part of the cover body 10. The water-stop gasket 20 is an annular sealing component that seals the inner side of the container body 2 and the cover body 10. It is made of elastic components such as heat-resistant rubber or elastomers, for example.

[0054] The lower part of the cover body 10 is provided with a lower peripheral wall 10f that protrudes downward from the bottom wall portion 10a in a generally cylindrical shape, and a lower flange portion 10g that protrudes from the outer peripheral surface of the lower peripheral wall 10f along the expansion direction throughout the entire circumference.

[0055] On the other hand, an annular fitting recess 20a is provided all around the inner circumference of the water-stop gasket 20. With the lower flange portion 10g fitted into the fitting recess 20a, the water-stop gasket 20 is fitted into the outer circumferential surface of the lower peripheral wall 10f, thereby allowing it to be detachably installed on the outer circumference of the lower end side of the cover body 10.

[0056] Furthermore, an elastic flange portion 20b protruding throughout the entire circumference along the expansion direction is provided on the outer peripheral surface of the water-stop gasket 20. When the cap body 10 has been installed on the container body 2, the elastic flange portion 20b of the water-stop gasket 20 elastically deforms and is tightly attached to the protrusion 7 of the container body 2 throughout its entire circumference. As a result, the protrusion 7 (the inner side of the container body 2) and the cap body 10 can be sealed.

[0057] On the other hand, the waterproof gasket 20 can be removed from the cover body 10 by elastically deforming (stretching) itself. Thus, the cover body 10 and the waterproof gasket 20 can be cleaned separately, and the cover body 10 and the waterproof gasket 20 can be kept clean.

[0058] Furthermore, the waterproofing 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, but can also be multiple. In addition, the shape of the elastic flange portions 20b can also be appropriately modified.

[0059] like Figures 2-6 , Figure 8 as well as Figure 10 As shown, the cover 11 is movable relative to the cover body 10 in the vertical direction under the condition that the first helical spring 21 provided inside it applies force to the upward side.

[0060] Specifically, the cover 11 includes: a first helical spring 21, a cover component 22, a first retaining component 23, and a cover component 24. The first helical spring 21, as the first force-applying component, is made of, for example, a metal wire with excellent corrosion resistance, such as stainless steel. The cover component 22, the first retaining component 23, and the cover component 24 are made of, for example, resin molded materials such as PP, ABS, and POM.

[0061] The cover component 22 is generally formed in the shape of an elliptical plate so that the upper part of the peripheral wall portion 10b can be closed when it is embedded inside the pair of upper wall portions 10d of the cover body 10.

[0062] A flow path forming portion 25 for forming a part of the flow path R is provided on the front side of the cover member 22 (cover body 11). The flow path forming portion 25 has: an upper wall 25a covering the upper sides of a pair of partition walls 16, a rear wall 25b covering the rear sides of a pair of partition walls 16, and a pair of side walls 25c covering the outer surfaces of a pair of partition walls 16. The pair of partition walls 16 engage with the upper wall 25a, the rear wall 25b, and the pair of side walls 25c, forming a flow path R from the liquid inlet 17 toward the pouring outlet 15.

[0063] In addition, the cover component 22 can be detachably installed relative to the cover body 10 by engaging with a pair of engaging grooves 16a formed on the outer surface of a pair of partition walls 16 and a pair of engaging protrusions 25d formed on the inner surface of a pair of side walls 25c.

[0064] The first retaining member 23 has a generally circular top wall portion 23a, a generally cylindrical peripheral wall portion 23b that descends from the outer periphery of the top wall portion 23a, and a plurality of holes 23c (three in this embodiment) penetrating the top wall portion 23a.

[0065] Additionally, the first retaining member 23 has a pair of guide protrusions 26 and a sleeve portion 27. The pair of guide protrusions 26 are provided outward from opposite positions on the peripheral wall portion 23b.

[0066] The sleeve portion 27 is the part that allows the sliding shaft 30, described later, to be detachably installed via a threaded connection. It has a shaft hole 27a that passes through the central part of the top wall portion 23a and protrudes downward in a generally cylindrical shape. In addition, a pair of threaded engagement protrusions 27b are provided on the inner side of the sleeve portion 27 (the inner circumferential surface of the shaft hole 27a).

[0067] On the other hand, the cover component 22 is provided with a receiving recess 22a for receiving the first helical spring 21, a shaft hole 22b through the central part of the receiving recess 22a, a pair of guide recesses 22c that can slide to guide a pair of guide protrusions 26 in the vertical direction, and a pair of abutting portions 22d that abut against a pair of guide protrusions 26 at the upper end of the pair of guide recesses 22c.

[0068] The first helical spring 21 is compressed between the receiving recess 22a and the top wall portion 23a, and a pair of guide protrusions 26 are inserted into the inside of a pair of guide recesses 22c, thereby mounting the first retaining member 23 onto the cover member 22.

[0069] Thus, the first retaining member 23 holds the first coil spring 21 in a compressed state between itself and the cover member 22. Furthermore, the first retaining member 23 can slide (move) freely in the vertical direction while being exerted upward force by the first coil spring 21. Additionally, the first retaining member 23 is restricted from sliding (moving) upward relative to the cover member 22 because a pair of guide protrusions 26 abut against a pair of abutment portions 22d.

[0070] The cover member 24 is generally formed in the shape of an elliptical plate so as to cover the upper part of the cover member 22 and the first retaining member 23 when it is embedded inside the pair of upper wall portions 10d of the cover body 10. In addition, an operating handle 24a protruding rearward is provided at the rear end of the cover member 24.

[0071] The cover member 24 is rotatably (movably) mounted in the vertical direction via a hinge 28 provided between it and the cover member 22. The hinge 28 has a pair of engaging grooves 25e provided on the side of the cover member 22 and a pair of support shafts 24b provided on the side of the cover member 24.

[0072] A pair of engaging grooves 25e are located on the outer surfaces of a pair of side walls 25c, and are formed by cuts from the upper ends of the pair of side walls 25c toward the lower and rearward direction. A pair of support shafts 24b are provided protruding from the inner surfaces of a pair of arms 24c, which protrude downward from the lower surface of the front side of the cover member 24.

[0073] For the hinge portion 28, a pair of support shafts 24b engage with a pair of engagement slots 25e, and the pair of support shafts 24b are located at the rear ends of the pair of engagement slots 25e, thereby rotatably supporting the cover member 24 relative to the cover member 22. In addition, the cover member 24 can be detachably installed relative to the cover member 22 by engaging the pair of engagement slots 25e constituting the hinge portion 28 with the pair of support shafts 24b.

[0074] Furthermore, the cover member 24 has an elastic piece 24d protruding downward from its lower rear surface and a locking claw 24e protruding forward from the front end of the elastic piece 24d. On the other hand, a locking hole 22e is provided at the rear opening of the cover member 22. When the elastic piece 24d is inserted into the locking hole 22e, the locking claw 24e is engaged in the locking hole 22e, thereby restricting the rotation (movement) of the cover member 24 relative to the upward side of the cover member 22.

[0075] like Figures 2-6 as well as Figure 9 As shown, the middle bolt 12 is movably installed relative to the cover body 10 in the vertical direction.

[0076] Specifically, the bolt 12 includes a bolt body 29, a sliding shaft 30, a second helical spring 31, and a second retaining member 32. The second helical spring 31, as a second force-applying member, is made of a metal wire with excellent corrosion resistance, such as stainless steel. The bolt body 29, the sliding shaft 30, and the second retaining member 32 are made of resin molded materials such as PP, ABS, and POM.

[0077] The plug body 29 is generally formed in the shape of a circular plate to close the lower part of the cover body 10. In addition, the plug body 29 has a shape that is concave upward. Furthermore, a pair of wall portions 29a for gripping during disassembly and assembly are provided on the outer periphery of the lower surface side of the plug body 29 from a position opposite each other.

[0078] A sleeve portion 33 is provided in the center of the bolt body 29. The sleeve portion 33 is the part that slidably supports the sliding shaft 30 in the vertical direction, has a central hole 33a that passes through the bolt body 29, and protrudes upward in a generally cylindrical shape. In addition, the sleeve portion 33 is disposed inside the second helical spring 31.

[0079] The sliding shaft 30 has a shaft portion 30a and a head 30b at the lower end of the shaft portion 30a. With the shaft portion 30a extending through a central hole 33a towards the upward side, it is slidably (movably) mounted relative to the bolt body 29 in the vertical direction. Furthermore, the head 30b abuts against the lower surface of the bolt body 29, thereby restricting the upward sliding (movement) of the sliding shaft 30 relative to the bolt body 29.

[0080] Furthermore, the sliding shaft 30 has a plurality of (four in this embodiment) ribs 30c protruding from the base end side of the shaft portion 30a. On the other hand, a plurality of (four in this embodiment) guide grooves 33b are provided on the inner side of the sleeve portion 33 (the inner circumferential surface of the central hole 33a) for engaging the plurality of ribs 30c. Thus, for the middle bolt 12, the rotation of the bolt body 29 about the shaft portion 30a (sliding shaft 30) is restricted.

[0081] Additionally, a pair of threaded engagement grooves 30d are provided on the outer peripheral surface of the shaft portion 30a for threaded engagement of a pair of threaded engagement protrusions 27b, and a pair of locking grooves 30e for locking the pair of threaded engagement protrusions 27b. The pair of threaded engagement grooves 30d are formed in a spiral shape, extending downward from the upper end side of the shaft portion 30a. The pair of locking grooves 30e are continuous with the lower end of each threaded engagement groove 30d and are formed in an upward cut.

[0082] A shaft gasket 34 is detachably installed on the shaft portion 30a. The shaft gasket 34 is an annular sealing component that seals the shaft portion 30a (sliding shaft 30) that passes through the shaft hole 19a of the sleeve portion 19 and the shaft hole 19a (cover body 10). It is made of an elastic component, such as a heat-resistant rubber or an elastomer, like silicone rubber.

[0083] The shaft gasket 34 is fitted into an annular fitting recess 30f provided on the outer peripheral surface of the shaft portion 30a. In addition, an elastic flange portion 34a is provided on the outer peripheral surface of the shaft gasket 34 along the diameter expansion direction, which is in close contact with the shaft hole 19a around the entire circumference.

[0084] A head gasket 35 is detachably mounted on the head 30b. The head gasket 35 is an annular sealing component that seals the area between the head 30b (sliding shaft 30) and the center hole 33a (bolt 29) of the sleeve portion 33. It is made of, for example, heat-resistant rubber such as silicone rubber, or an elastic component such as an elastomer. The head gasket 35 covers the outer periphery of the head 30b.

[0085] The second retaining member 32 has: a generally circular top wall portion 32a, a generally cylindrical peripheral wall portion 32b that descends from the outer periphery of the top wall portion 32a, and a sliding hole 32c that passes through the center of the top wall portion 32a.

[0086] The second helical spring 31 is compressed between the bolt body 29 and the top wall portion 32a, and the shaft portion 30a passes through the sliding hole 32c, thereby the second retaining member 32 is mounted on the sliding shaft 30.

[0087] In addition, the second retaining member 32 abuts against the abutting portion 30g provided between the upper ends of the plurality of ribs 30c, thereby restricting its upward sliding (movement) relative to the sliding shaft 30.

[0088] Thus, the second retaining member 32 holds the second coil spring 31 in a compressed state between itself and the bolt body 29. Furthermore, the second retaining member 32 can slide (move) freely in the vertical direction while being subjected to an upward force by the second coil spring 31. Additionally, the second coil spring 31 exerts a downward force on the bolt body 29 relative to the sliding shaft 30.

[0089] Furthermore, multiple (four in this embodiment) guide grooves 32d are provided on the inner circumferential surface of the sliding hole 32c for engaging with multiple rib walls 30c. Thus, for the middle bolt 12, the rotation of the second retaining member 32 about the shaft relative to the shaft portion 30a (sliding shaft 30) is restricted.

[0090] In the cover unit 3 of this embodiment, as Figure 2 , Figure 3 , Figure 6 as well as Figure 10 As shown, the sliding shaft 30 on the side of the bolt 12 can be detachably installed relative to the first retaining member 23 on the side of the cover 11 via a threaded engagement.

[0091] Specifically, with the shaft portion 30a of the sliding shaft 30 passing through the shaft holes 19a, 22b, and 27a of the cover body 10, the cover component 22, and the first retaining component 23, and with the front end of the shaft portion 30a protruding upwards from the first retaining component 23, the sliding shaft 30 (middle bolt 12) can be detachably installed relative to the first retaining component 23 (cover body 11) through a threaded engagement.

[0092] While rotating the sliding shaft 30 and the bolt body 29 together in one direction around the shaft (clockwise in this embodiment), and while threading a pair of threaded engagement protrusions 27b into a pair of threaded engagement grooves 30d, the pair of threaded engagement protrusions 27b are locked into a pair of locking grooves 30e, thereby allowing the bolt 12 to be installed relative to the first retaining member 23 (cover 11).

[0093] Therefore, in the cover unit 3 of this embodiment, the cover body 11 and the middle bolt 12 can be installed relative to the cover body 10. In addition, in the cover unit 3 of this embodiment, the bolt 29 is tightly attached to the water-stop gasket 20 all around the circumference, thereby closing the lower side of the cover body 10 with the bolt 29 (middle bolt 12).

[0094] On the other hand, by rotating the sliding shaft 30 and the bolt body 29 together in the opposite direction (leftward rotation in this embodiment) around the axis, the bolt 12 can be removed relative to the first retaining member 23 (cover body 11). Thus, in the cover unit 3 of this embodiment, the cover body 11 and the bolt 12 can be removed and disassembled relative to the cover body 10.

[0095] In addition, such as Figure 11 and Figure 12 As shown, the cover unit 3 of this embodiment includes a limiting mechanism 36 that restricts the bolt 29 (middle bolt 12) from rotating about an axis relative to the cover body 10 when the bolt 29 (middle bolt 12) closes the lower side of the cover body 10.

[0096] The limiting mechanism 36 has at least one or more (two in this embodiment) locking portions 36a disposed on the side of the cap body 29 opposite to the cap body 10 (upper surface) and at least one or more (two in this embodiment) locking portions 36b disposed on the side of the cap body 10 opposite to the cap body 29 (lower surface).

[0097] The locking portion 36a is formed by a wall portion protruding from the upper surface of the plug body 29. The locking portion 36a extends radially along the plug body 29 and is provided such that its upper end is at the same radial height as the inclined upper surface of the plug body 29. In addition, the locking portion 36a is provided symmetrically across the central hole 33a of the plug body 29.

[0098] The locking portion 36b is formed by a groove cut into a portion of the lower peripheral wall 10f that protrudes from the lower surface of the cover body 10. One end (left end) of the locking portion 36b in one direction is formed by a vertical surface, and the other end (right end) is formed by an inclined surface. In addition, the locking portion 36b is provided in a symmetrical position across the shaft hole 19a of the cover body 10.

[0099] In the limiting mechanism 36, when the bolt 29 (middle bolt 12) closes the lower side of the cover body 10, the locking part (wall part) 36a is locked to the locked part (groove part) 36b, thereby restricting the bolt 29 (middle bolt 12) from rotating about the axis relative to the cover body 10.

[0100] Therefore, it is possible to prevent the bolt 29 (middle bolt 12) from rotating around the axis and the threaded engagement of the sliding shaft 30 (middle bolt 12) with respect to the first retaining member 23 (cover body 11) from being released when the cover unit 3 is being loaded and unloaded while rotating around the axis relative to the container body 2.

[0101] On the other hand, in the limiting mechanism 36, when the bolt 29 (middle bolt 12) has opened the lower side of the cover body 10, the locking part (wall part) 36a is released from the state of being locked by the locking part (groove part) 36b. As a result, the bolt 29 (middle bolt 12) can be easily rotated about the axis relative to the cover body 10.

[0102] Furthermore, in the limiting mechanism 36, when the plug body 29 (middle plug 12) rotates about an axis relative to the cover body 10, the locking part (wall part) 36a slides into contact with the lower end of the lower peripheral wall 10f, and the plug body 29 is separated from the water-stopping gasket 20. Therefore, the plug body 29 (middle plug 12) can easily rotate about an axis relative to the cover body 10 without contacting the water-stopping gasket 20.

[0103] Furthermore, in the limiting mechanism 36, as long as the aforementioned locking part 36a is locked to the locked part 36b, it is not limited to the case that the locking part 36a is composed of a wall part and the locked part 36b is composed of a groove part. The structures of these locking parts 36a and locked parts 36b can also be appropriately modified.

[0104] In the cover unit 3 of this embodiment with the structure described above, the bolt 29 (middle bolt 12) closes the lower side of the cover body 10, thereby closing the flow path R. From this state, while holding the handle 8a with one hand, the operating handle 24a is pressed downwards using the thumb or the like.

[0105] At this point, starting from the state where the front end of the sliding shaft 30 has abutted against the cover component 24, the cover component 24 (cover body 11) rotates (moves) downward against the force exerted by the first helical spring 21, thereby causing the sliding shaft 30 (middle bolt 12) to slide (move) downward. As a result, the lower part of the cover body 10 is opened by the bolt 29 (middle bolt 12), and the flow path R is opened.

[0106] In addition, when the plug body 29 (middle plug 12) is subjected to pressure inside the container body 2, the sliding shaft 30 (middle plug 12) slides (moves) downward, thereby causing the head 30b to open the lower side of the central hole 33a against the force of the second helical spring 31, and to ventilate through the vent 18 to the inside of the container body 2.

[0107] In the lid unit 3 of this embodiment, starting from this state, the container body 2 is tilted forward, thereby allowing the beverage contained in the container body 2 to be poured out from the pouring port 15 through the open flow path R.

[0108] On the other hand, in the cover unit 3 of this embodiment, the pressing operation of the operating handle 24a is released, thereby causing the cover member 24 (cover body 11) which is stressed by the first helical spring 21 to rotate (move) upward. In addition, the sliding shaft 30 (middle bolt 12) which is stressed by the first helical spring 21 slides (moves) upward. As a result, the bolt 29 (middle bolt 12) closes the lower part of the cover body 10, and the flow path R is closed.

[0109] Additionally, the sliding shaft 30 (middle bolt 12) slides (moves) upward, thereby closing the lower part of the center hole 33a by the head 30b which is subjected to force by the second helical spring 31.

[0110] In the cap unit 3 of this embodiment, a flow path forming part 25 that forms part of the flow path R is provided on the cap member 22 (cap body 11). As a result, it is possible to prevent beverage in the flow path R from flowing into the inside of the cap body 11 (specifically between the cap member 22 and the cover member 24), and also to keep the flow path R clean.

[0111] Furthermore, in the cover unit 3 of this embodiment, the middle bolt 12 can be detached from the cover body 11 when the flow path R is open. Specifically, when the bolt body 29 (middle bolt 12) is open to the lower part of the cover body 10, the sliding shaft 30 on the middle bolt 12 side can be detached from the first retaining member 23 on the cover body 11 side by means of a threaded engagement.

[0112] Therefore, in the cover unit 3 of this embodiment, with the lower part of the cover body 10 open by the bolt 29 (middle bolt 12), the cover body 11 and the middle bolt 12 can be removed from the cover body 10, and the cover unit 3 can be easily disassembled.

[0113] Therefore, in this cover unit 3, the flow path R can be easily cleaned while the cover body 10, cover body 11, and middle plug 12 are disassembled. Furthermore, since these components can be cleaned separately while disassembled, the cover body 10, cover body 11, and middle plug 12 can be kept clean.

[0114] As described above, the lid unit 3 of this embodiment simplifies the structure and improves cleanability. Therefore, by providing such a lid unit 3, the ease of use can be further improved in the lidded container 1 of this embodiment.

[0115] Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0116] For example, in the above embodiment, the lidded container 1 used in the above-described desktop kettle is exemplified, but the present invention can be widely applied to lidded containers having a lid unit that can be detachably installed relative to the container body with an opening at the top.

[0117] Furthermore, in the above embodiment, a covered container 1 with heat preservation and cold preservation functions is exemplified because the container body 2 has the above-described vacuum insulation structure. However, the present invention can be applied to covered containers with container bodies that do not have a vacuum insulation structure.

Claims

1. A cover unit, detachably installable relative to a container body with an upper opening, characterized in that, have: The lid body closes the upper opening of the container body and is provided with a flow path communicating with the inside of the container body; A cover body, located on the upper side of the cover body, and movably mounted relative to the cover body in the vertical direction; and A central bolt, located on the lower side of the cover body, is movably mounted relative to the cover body in the vertical direction. The cover has: A cover component that can be detachably installed on the cover body when the upper side of the cover body is closed; A first retaining component is mounted on the cover component; as well as A first force-applying component applies force to the cover and the central bolt towards the upward side, holding the cover component in a compressed state between the cover component and the first retaining component, and is disposed on the inner side of the cover component. Furthermore, the cover is constructed as a single component during installation and removal. Starting from the state where the flow path is closed by the middle bolt, the cover moves downward against the force applied by the first force-applying component, thereby the middle bolt moves downward and the flow path is opened by the middle bolt.

2. The cover unit according to claim 1, characterized in that, It has a cover member that is rotatably mounted to the cover member via a hinge while covering the upper part of the first retaining member.

3. The cover unit according to claim 2, characterized in that, The middle bolt has: a bolt body with a central hole; A sliding shaft, which is slidably mounted relative to the bolt body in the vertical direction with the central hole extending upwards; The second force-applying component applies a force to the bolt body toward the downward side relative to the sliding shaft; as well as The second retaining member holds the second force-applying member between itself and the bolt body. The sliding shaft is mounted on the first retaining member with its front end protruding upwards from the shaft holes respectively provided in the cover body, the cover component, and the first retaining member. Starting from the state where the bolt closes the lower side of the cover body, the cover component rotates downward against the force applied by the first force-applying component. As a result, with the front end of the sliding shaft already abutting against the cover component, the sliding shaft slides downward while the bolt opens the lower side of the cover body.

4. The cover unit according to claim 3, characterized in that, The sliding shaft is installed in a manner that allows it to rotate in one direction integrally with the bolt body while being detachable from the first retaining member via a threaded engagement.

5. The cover unit according to any one of claims 2 to 4, characterized in that, The cover component has an operating handle protruding from the rear end.

6. A container with a lid, characterized in that, have: The cover unit according to any one of claims 1 to 5; and The container body on which the cover unit is installed.

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