Cap unit and container with cap

Abstract

To provide a cap unit having a lid lock mechanism which has high functionality and excellent designability.SOLUTION: A cap unit includes a lid lock mechanism 36 for fixing a lid body 9 at a position where a liquid port 13 is blocked against energization of a first energization member 26, wherein the lid lock mechanism 36 has a lock member 38 which is rotatably mounted on a cap body 7 through a second hinge part 37 and is rotated between a lock position where one locking part 44 provided on one end side is locked to other locking part 45 provided on the lid body 9 side, and a lock release position where the locking state between the one locking part 44 and the other locking part 45 is released, and a cover member 49 covering the lock member 38.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a cap unit and a container with a cap. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there have been cap units (plugs) that can be detachably attached to a container body having an open top (see, for example, Patent Document 1).

[0003] The cap unit includes a cap body that closes the upper opening of the container body and has a liquid passage port that communicates with the inside of the container body, and a lid that opens and closes the liquid passage port while being rotatably attached to the cap body via a first hinge portion. The cap unit also includes a lid lock mechanism that biases the lid body in a direction that opens the liquid passage port by a first biasing member provided on the first hinge portion, and fixes the lid body at a position that closes the liquid passage port against the bias of the first biasing member.

[0004] The lid locking mechanism has a locking member rotatably attached to the lid via a second hinge portion. The locking member rotates between a locked position where one locking portion provided on one end side of the locking member is locked with the other locking portion provided on the cap body side, and an unlocked position where the locked state between the one locking portion and the other locking portion is released. The lid locking mechanism also has a second biasing member that biases the locking member toward the locked position in the rotation direction.

[0005] In the lid locking mechanism, the locking member is pressed against the force of the second biasing member to release the lid body from its fixed state (locked state), thereby making it possible to rotate the lid body in the opening direction by the force of the first biasing member.

[0006] In a capped container equipped with such a cap unit, the liquid passage hole is opened by releasing the locked state of the lid body by the lid locking mechanism and rotating the lid body in the opening direction, which allows the beverage in the container body to be drunk through the liquid passage hole. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2010-23854 A Summary of the Invention [Problem to be solved by the invention]

[0008] However, with capped containers equipped with the above-mentioned conventional cap units, it is difficult to differentiate products from those of other companies, and further ingenuity is required to expand market share through product differentiation.

[0009] For example, in a conventional cap unit, it is required to obtain a lid lock mechanism that is highly functional and has a good design. In particular, in the conventional lid lock mechanism, since the above-mentioned lock member is made of resin, it is difficult to achieve both durability and design of the lock member.

[0010] The present invention has been proposed in consideration of the above-mentioned conventional circumstances, and aims to provide a cap unit equipped with a lid locking mechanism that is highly functional and has excellent design, as well as a capped container equipped with such a cap unit. [Means for solving the problem]

[0011] 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 liquid passage hole that communicates with the inside of the container body; a cover body that is rotatably attached to the cap body via a first hinge portion and opens and closes the liquid passage port in a state where the cover body is biased in a direction to open the liquid passage port by a first biasing member provided on the first hinge portion; a lid locking mechanism that fixes the lid at a position where the lid closes the liquid passage hole against the bias of the first biasing member, the lid lock mechanism includes a locking member that is rotatably attached to the cap body via a second hinge portion and that is rotatable between a locked position where one locking portion provided on one end side is locked with the other locking portion provided on the lid body side and an unlocked position where the locked state between the one locking portion and the other locking portion is released; The lock member is covered with Metal With a cover member death, the second hinge portion includes a first hinge bearing portion provided on either the locking member or the cap body, a second hinge bearing portion and a third hinge bearing portion provided on the other of the locking member or the cap body, and a hinge shaft attached in a state in which the first hinge bearing portion is positioned between the second hinge bearing portion and the third hinge bearing portion and the hinge shaft passes through shaft holes provided in the first, second and third hinge bearing portions in a rotation axis direction; The cover member has a cover body that covers the locking member, and a pair of support arms that protrude from the cover body and have an axis hole through which the hinge shaft passes in the rotation axis direction, and the pair of support arms are attached integrally with the locking member via a fixing mechanism, so that the cover member is attached rotatably together with the locking member. A cap unit characterized by 。 [ 2 〕 The pair of support arms are provided on the lock member. protruding from the cover body so as to be positioned on both sides of the first hinge bearing portion 、 The fixing mechanism fixes the pair of support arms to the first hinge bearing portion. 1

[0023] A cap unit according to the above. [ 3 〕 The pair of support arms are provided on the lock member. protruding from the cover body so as to be positioned on both sides of the second hinge bearing portion and the third hinge bearing portion; 、 The fixing mechanism fixes the pair of support arms to the second hinge bearing portion and the third hinge bearing portion. 1 The cap unit according to 。 [ 4 The above [1] to [ 3 and a cap unit according to any one of the above items (1) to (4). a container body to which the cap unit is attached. 。 Effect of the Invention

[0012] As described above, according to the present invention, it is possible to provide a cap unit equipped with a lid locking mechanism that is both highly functional and has an excellent design, as well as a capped container equipped with such a cap unit. [Brief description of the drawings]

[0013] [Figure 1] 1 is a perspective view showing the appearance of a capped container equipped with a cap unit according to one embodiment of the present invention; [Diagram 2] FIG. 2 is a cross-sectional view showing the configuration of a capped container. [Diagram 3] FIG. 2 is a cross-sectional perspective view showing a configuration of a cap unit. [Figure 4] 11 is a cross-sectional view showing a state in which the locking member is in a locked position when the cap unit is closed. FIG. [Diagram 5] 11 is a cross-sectional view showing a state in which the locking member is in an unlocked position when the cap unit is closed. FIG. [Figure 6] FIG. 4 is a cross-sectional view showing a state in which the cap unit is open. [Figure 7] FIG. 4 is a perspective view showing a cap unit in an open state. [Figure 8] FIG. 4 is a perspective view showing a configuration of a mouth forming member. [Figure 9] 1A and 1B are perspective views showing the configuration of a locking member, in which FIG. 1A is a perspective view seen from the front side, and FIG. [Figure 10] FIG. 4 is an exploded perspective view of the lid lock mechanism as seen from the front. [Figure 11] FIG. 4 is an exploded perspective view of the lid lock mechanism as seen from the rear. [Figure 12] 11 is an exploded perspective view of a locking member and a second biasing member as viewed from the front side. FIG. [Figure 13] 13 is an exploded perspective view of the lock member and the second biasing member as viewed from the rear side. FIG. [Figure 14] FIG. 4 is an exploded perspective view showing the configurations of a lock member and a cover member. [Figure 15] 13 is a perspective view of a main portion showing a state in which a cover member is attached to a lock member. FIG. [Figure 16] FIG. 13 is an exploded perspective view showing a first modified example of a cover member attached to a lock member. [Figure 17] FIG. 11 is a perspective view showing a second modified example of a cover member attached to a lock member. [Figure 18] FIG. 13 is a side view showing a third modified example of a cover member attached to a lock member. [Figure 19] 4 is a perspective view showing a first hinge bearing portion constituting a first hinge portion. FIG. [Figure 20] 2 is a perspective view of first, second and third hinge bearing portions constituting a first hinge portion, as viewed from one side. FIG. [Figure 21] 4 is a perspective view of the first, second and third hinge bearing portions constituting the first hinge portion, as viewed from the other side. FIG. [Figure 22] 4 is a perspective view showing a first biasing member, a hinge shaft, and a facing member that configure a first hinge portion. FIG. [Figure 23] FIG. 4 is a cross-sectional perspective view showing the configuration of a first hinge portion. [Figure 24] FIG. 4 is a perspective view of the rotation damper mechanism as viewed from one side. [Diagram 25] FIG. 11 is a perspective view of the rotation damper mechanism as viewed from the other side. [Figure 26] FIG. 4 is an exploded perspective view of the rotation damper mechanism as viewed from one side. [Figure 27] FIG. 11 is an exploded perspective view of the rotation damper mechanism as viewed from the other side. [Figure 28] FIG. 4 is a cross-sectional view showing a configuration of a rotation damper mechanism. [Figure 29] FIG. 11 is a perspective view showing another configuration of the rotation damper mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] 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 100 including a cap unit 1 shown in, for example, FIGS. 1 to 28 will be described.

[0015] FIG. 1 is a perspective view showing the appearance of a capped container 100 including a cap unit 1. FIG. 2 is a cross-sectional view showing the configuration of the capped container 100. FIG. 3 is a cross-sectional perspective view showing the configuration of the cap unit 1. FIG. 4 is a cross-sectional view showing a state in which the locking member 38 is in a locked position when the cap unit 1 is closed. FIG. 5 is a cross-sectional view showing a state in which the locking member 38 is in an unlocked position when the cap unit 1 is closed. FIG. 6 is a cross-sectional view showing a state in which the cap unit 1 is opened. FIG. 7 is a perspective view showing a state in which the cap unit 1 is opened. FIG. 8 is a perspective view showing a configuration of the opening forming member 12. FIG. 9 shows the configuration of the engaging member 17, where (a) is a perspective view seen from the front side, and (b) is a perspective view seen from the rear side. FIG. 10 is an exploded perspective view of the lid lock mechanism 36 seen from the front side. FIG. 11 is an exploded perspective view of the lid lock mechanism 36 seen from the rear side. FIG. 12 is an exploded perspective view of the lock member 38 and the second biasing member 46 seen from the front side. FIG. 13 is an exploded perspective view of the locking member 38 and the second biasing member 46 seen from the rear side. FIG. 14 is an exploded perspective view showing the configuration of the locking member 38 and the cover member 49. FIG. 15 is a perspective view of the main part showing the state in which the cover member 49 is attached to the locking member 38. FIG. 16 is an exploded perspective view showing a first modified example of the cover member 49 attached to the locking member 38. FIG. 17 is a perspective view showing a second modified example of the cover member 49 attached to the locking member 38. FIG. 18 is a side view showing a third modified example of the cover member 49 attached to the locking member 38. FIG. 19 is a perspective view showing the first hinge bearing portion 52 constituting the first hinge portion 8. FIG. 20 is a perspective view of the first, second and third hinge bearing portions 52, 53 and 54 constituting the first hinge portion 8 seen from one side. FIG. 21 is a perspective view of the first, second and third hinge bearing portions 52, 53 and 54 constituting the first hinge portion 8 seen from the other side. Fig. 22 is a perspective view showing the first biasing member 26, hinge shaft 55, and facing member 56 which constitute the first hinge portion 8. Fig. 23 is a cross-sectional perspective view showing the configuration of the first hinge portion 8. Fig. 24 is a perspective view of the rotation damper mechanism 51 as seen from one side. Fig. 25 is a perspective view of the rotation damper mechanism 51 as seen from the other side.Fig. 26 is an exploded perspective view of the rotation damper mechanism 51 as viewed from one side. Fig. 27 is an exploded perspective view of the rotation damper mechanism 51 as viewed from the other side. Fig. 28 is a cross-sectional view showing the configuration of the rotation damper mechanism 51. Fig. 29 is a perspective view showing another configuration of the rotation damper mechanism 51.

[0016] 1 and 2, the capped container 100 of this embodiment includes a cap unit 1 of this embodiment and a container body 2 to which the cap unit 1 is detachably attached. The capped container 100 is a beverage container that can keep a beverage (contents) contained in the container body 2 hot or cold by the container body 2 having a vacuum insulation structure.

[0017] Specifically, the container body 2 has a bottomed cylindrical outer container 3 and inner container 4 made of, for example, stainless steel, and is configured as a double-structure container in which the mouths of the outer container 3 and inner container 4 are joined together while the inner container 4 is housed inside the outer container 3. A vacuum insulation layer 5 is provided between the outer container 3 and the inner container 4. The vacuum insulation layer 5 can be formed, for example, by blocking a degassing hole provided in the center of the bottom surface of the outer container 3 in a chamber that has been reduced to a high vacuum (evacuated).

[0018] The container body 2 has a substantially circular bottom surface 2a, a body portion 2b that rises from the outer periphery of the bottom surface 2a in a substantially cylindrical shape, and a substantially cylindrical mouth-neck portion 2c that is tapered at the upper side of the body portion 2b. The upper end of the mouth-neck portion 2c opens in a circular shape as an upper opening 2d of the container body 2. The inner peripheral surface of the mouth-neck portion 2c is tapered in diameter more than the inner peripheral surface of the body portion 2b. Furthermore, a ring-shaped protruding portion 6 is provided on the inner peripheral surface of the mouth-neck portion 2c so as to protrude around the entire circumference.

[0019] Although the capped container 100 of this embodiment has a generally cylindrical external shape as a whole, the external shape of the capped container 100 is not particularly limited and can be modified as appropriate according to the size, design, etc. In addition, the outer circumferential surface of the container body 2 may be painted, printed, or the like.

[0020] The cap unit 1 of this embodiment constitutes a plug that closes the upper opening 2d of the above-mentioned container body 2. Specifically, as shown in Figures 3 to 7, this cap unit 1 includes a cap body 7 and a lid body 9 rotatably attached to the cap body 7 via a first hinge portion 8.

[0021] In the following description, the side where the lid body 9 is attached to the cap body 7 via the first hinge portion 8 will be referred to as the "rear side (back side)" of the cap unit 1 (capped container 100), and the opposite side will be referred to as the "front side (front side)" of the cap unit 1 (capped container 100).

[0022] The cap body 7 is made of a heat-resistant resin such as polypropylene (PP). The cap body 7 has a peripheral wall portion 7a formed in a substantially cylindrical shape so as to be continuous with the trunk portion 2b of the container body 2, and an upper wall portion 7c in which an opening portion 7b having a smaller diameter than the peripheral wall portion 7a is formed at the upper portion of the peripheral wall portion 7a.

[0023] The cap body 7 is detachably attached by screwing to the mouth-neck portion 2c of the container body 2. For this purpose, a female screw portion 10 is provided on the inner peripheral surface of the peripheral wall portion 7a. On the other hand, a male screw portion 11 that screws into the female screw portion 10 is provided on the outer peripheral surface of the mouth-neck portion 2c.

[0024] 3 to 9, a mouth-forming member 12 that forms a drinking spout or a pouring spout (a drinking spout in this embodiment) is detachably attached to the opening 7b of the cap body 7. The mouth-forming member 12 is made of a heat-resistant resin such as polypropylene (PP). The mouth-forming member 12 is provided with a substantially circular liquid-passing port 13 that communicates with the inside of the container body 2.

[0025] The mouth-forming member 12 has a bottom wall portion 12a in which a liquid passage port 13 is formed, a cylindrical peripheral wall portion 12b rising upward from the periphery of the bottom wall portion 12a, a lower flange portion 12c protruding in a ring shape from the lower end side of the outer peripheral surface of the bottom wall portion 12a, a pair of upper flange portions 12d protruding in the left-right direction from the upper end side of the outer peripheral surface of the peripheral wall portion 12b to the opposite side, and a drinking mouth portion 12e protruding in an oblique cut shape from the front upper end of the peripheral wall portion 12b.

[0026] A mouth detachment mechanism 14 for detachably attaching the mouth forming member 12 to the opening 7b of the cap body 7 is provided between the cap body 7 and the mouth forming member 12. The mouth detachment mechanism 14 has a first claw portion 15 on the front side of the mouth forming member 12 and a locking member 17 having a second claw portion 16 on the rear side of the mouth forming member 12.

[0027] The first claw portion 15 is provided so as to protrude forward from the upper end side of the outer circumferential surface of the peripheral wall portion 12b. The second claw portion 16 is provided so as to protrude rearward from the upper end (tip) side of the locking member 17.

[0028] The locking member 17 is attached to be rotatable in the front-rear direction via a hinge portion 18 provided at the rear lower end of the mouth forming member 12. The hinge portion 18 has a first hinge bearing portion 12f provided at the mouth forming member 12, a second hinge bearing portion 17a and a third hinge bearing portion 17b provided at the locking member 17, and a hinge shaft 19 attached in a state in which the first hinge bearing portion 12f is positioned between the second hinge bearing portion 17a and the third hinge bearing portion 17b and the hinge shaft 19 penetrates the shaft holes 12g, 17c, and 17d provided in the first, second, and third hinge bearing portions 12f, 17a, and 17b in the rotation axis direction. In addition, an operating portion 17e having a recess or a protrusion for making it easier to rotate the locking member 17 with a finger is provided at the upper end of the locking member 17.

[0029] Between the opening forming member 12 and the locking member 17, there is disposed a biasing member 20 which biases the locking member 17 rearward in the rotation direction. The biasing member 20 is made of an elastic material such as heat-resistant rubber, elastomer, etc., such as silicone rubber. The biasing member 20 is attached to the surface of the locking member 17 facing the opening forming member 12 by fitting an attachment protrusion 22 provided on the front side of the locking member 17 into an attachment hole 21 provided on the rear side of the biasing member 20.

[0030] When the tip side of the locking member 17 is rotated forward, the biasing member 20 is compressed (elastically deformed) between the locking member 17 and the mouth-forming member 12, thereby biasing the locking member 17 backward.

[0031] The cap detachment mechanism 14 has a first locked portion 23 on the front side of the cap body 7 and a second locked portion 24 on the rear side of the cap body 7. The first locked portion 23 and the second locked portion 24 are each made of a stepped portion provided at a front-rear position along the opening 7b of the upper wall portion 7c.

[0032] In the mouth detachment mechanism 14, the mouth forming member 12 is fitted from below into the inside of the opening 7b of the cap body 7 with the first claw portion 15 positioned relative to the first locked portion 23. At this time, the pair of upper flange portions 12d are in contact with the lower surface of the upper wall portion 7c of the cap body 7. The first claw portion 15 is also locked to the first locked portion 23. Furthermore, as the second claw portion 16 comes over the edge of the opening 7b of the cap body 7 while in contact with the edge of the opening 7b, the tip side of the locking member 17 rotates forward, and then the tip side of the locking member 17 returns to its original position at the rear, and at the same time, the second claw portion 16 is locked to the second locked portion 24.

[0033] As a result, the spout forming member 12 is attached to the opening 7b of the cap body 7. At the same time that the spout forming member 12 is attached, the drinking spout portion 12e protrudes outward (upward) from the opening 7b of the cap body 7.

[0034] Meanwhile, in the mouth detachment mechanism 14, the second claw portion 16 is released from the locked state with the second locked portion 24 by rotating the tip side of the locking member 17 forward. This makes it possible to remove the mouth forming member 12 from below the opening 7b of the cap body 7 while releasing the locked state of the first claw portion 15 with the first locked portion 23. This allows the mouth forming member 12 and the cap body 7 to be washed separately, and the space between the mouth forming member 12 and the cap body 7 can be kept hygienic.

[0035] The cap body 7 with the mouth-forming member 12 attached thereto is attached to the mouth-neck portion 2c of the container body 2, thereby closing the upper opening 2d of the container body 2 with the mouth-forming member 12 fitted inside the upper opening 2d.

[0036] As shown in Figs. 3 to 6, a waterproof gasket 25 is detachably attached to the lower flange portion 12c of the mouth forming member 12. The waterproof gasket 25 is a ring-shaped sealing member for sealing the gap between the protruding portion 6 (container body 2) and the mouth forming member 12 (cap body 7). The waterproof gasket 25 is made of an elastic material such as heat-resistant rubber or elastomer, for example, silicone rubber. The waterproof gasket 25 is fitted onto the outer periphery of the lower flange portion 12c.

[0037] When the waterproof gasket 25 is fitted inside the upper opening 2d of the container body 2, it elastically deforms and comes into close contact with the entire periphery of the protruding portion 6 of the container body 2. This makes it possible to seal the gap between the protruding portion 6 and the mouth forming member 12.

[0038] On the other hand, the watertight gasket 25 can be removed from the lower flange portion 12c (the opening forming member 12) by elastically deforming (pulling and stretching) the watertight gasket 25 itself. This allows the watertight gasket 25 and the opening forming member 12 to be washed separately, and the space between the watertight gasket 25 and the opening forming member 12 can be kept hygienic.

[0039] The lid body 9 opens and closes the liquid passage port 13 of the opening forming member 12, and is made of a heat-resistant resin such as polypropylene (PP). The lid body 9 has a peripheral wall portion 9a formed in a substantially cylindrical shape so as to be continuous with the peripheral wall portion 7a of the cap body 7, a top wall portion 9b covering the top surface of the peripheral wall portion 9a, and a substantially cylindrical inner wall portion 9c penetrating the top wall portion 9b and descending from the lower surface of the top wall portion 9b.

[0040] The lid body 9 is biased in a direction that opens the liquid passage port 13 of the port forming member 12 (hereinafter referred to as the opening direction) by a first biasing member 26 provided on the inside of the first hinge portion 8 described later.

[0041] A lid gasket 27 that closes the liquid passage port 13 of the port forming member 12 is provided on the inside of the lid body 9. The lid gasket 27 is a plug-shaped sealing member for sealing the liquid passage port 13. The lid gasket 27 is made of an elastic member, and the same material as the watertight gasket 25 can be used.

[0042] The lid gasket 27 is a cylindrical seal member with a bottom that is detachably attached to the inner wall portion 9c of the lid body 9. Specifically, the lid gasket 27 is detachably attached to the lower end side of the inner wall portion 9c with the inner wall portion 9c fitted into a center hole 27a on the inside of the lid gasket 27. The tip of the lid gasket 27 is formed in a dome shape.

[0043] The lid gasket 27 is detachably attached to the lid body 9 by fitting the inner wall portion 9c inside the central hole 27a. As a result, in the cap unit 1, when the lid body 9 closes the upper part of the cap body 7, the lid gasket 27 elastically deforms and comes into close contact with the periphery of the liquid passage port 13. This makes it possible to close the liquid passage port 13 of the port forming member 12.

[0044] On the other hand, by removing the lid gasket 27 from the inner wall portion 9c (lid body 9), the lid gasket 27 and the lid body 9 can be washed separately, and the space between the lid gasket 27 and the lid body 9 can be kept hygienic.

[0045] A cap member 28 that covers the upper end side of the inner wall portion 9c is attached to the upper surface side of the top wall portion 9b. The cap member 28 is made of the same material as the lid body 9 and is formed in a substantially circular plate shape. Meanwhile, a recess 29 having a shape corresponding to the cap member 28 is provided on the upper surface of the top wall portion 9b. The cap member 28 is fitted inside this recess 29.

[0046] The cap unit 1 is provided with a lid locking mechanism 36 that fixes the lid body 9 to the cap body 7 against the bias of the first biasing member 26 when the lid body 9 is in a position where the lid body 9 blocks the liquid passage port 13 (hereinafter referred to as the blocking position).

[0047] Specifically, as shown in Figures 4 to 6 and 10 to 15, the lid locking mechanism 36 has a locking member 38 rotatably attached to the cap body 7 via a second hinge portion 37, and a ring stopper 39 rotatably attached to the cap body 7 via the second hinge portion 37.

[0048] The second hinge portion 37 has a first hinge bearing portion 40 provided on the locking member 38, a second hinge bearing portion 41 and a third hinge bearing portion 42 provided on the cap body 7, and a hinge shaft 43 attached in a state where it penetrates shaft holes 40a, 41a, 42a provided in the first, second and third hinge bearing portions 40, 41, 42 in the rotation axis direction, with the first hinge bearing portion 40 positioned between the second hinge bearing portion 41 and the third hinge bearing portion 42.

[0049] The locking member 38 is rotatably supported by a second hinge portion 37 provided on the front side surface (peripheral wall portion 7a) of the cap body 7. The locking member 38 has a first arm portion 38a extending upward from the second hinge portion 37 and a second arm portion 38b extending downward from the second hinge portion 37.

[0050] A hook portion 44 serving as one of the locking portions is provided protruding rearward from the tip end of the first arm portion 38a (the upper end of the locking member 38). Meanwhile, a hook receiving portion 45 serving as the other of the locking portions with which the hook portion 44 of the locking member 38 is engaged is provided protruding forward from the front side surface (peripheral wall portion 9a) of the cover 9.

[0051] The locking member 38 is rotated between a position where the hook portion 44 is engaged with the hook receiving portion 45 (hereinafter referred to as the "locked position") and a position where the hook portion 44 is released from the engaged state with the hook receiving portion 45 (hereinafter referred to as the "unlocked position").

[0052] A second biasing member 46 is disposed between the second arm portion 38b and the peripheral wall portion 7a. The second biasing member 46 is made of an elastic member such as a heat-resistant rubber or elastomer, for example, silicone rubber, and unlike metal, is easily colored.

[0053] The second biasing member 46 is rotatably attached via the second hinge portion 37, and biases the locking member 38 toward the lock position in the rotation direction. Specifically, the second biasing member 46 has an elastic deformation portion 46a located between the second arm portion 38b and the peripheral wall portion 7a, and a support piece portion 46c extending upward from the elastic deformation portion 46a and provided with a shaft hole 46b.

[0054] The elastic deformation portion 46a is provided in a generally long cylindrical shape extending in the front-rear direction. A generally cylindrical fitting protrusion 46d is provided at the front end of the elastic deformation portion 46a so as to protrude forward. Meanwhile, a fitting hole 47 into which the fitting protrusion 46d is fitted is provided in the second arm portion 38b of the locking member 38. The fitting hole 47 does not necessarily need to be configured to pass through the second arm portion 38b, and may be a fitting recess into which the fitting protrusion 46d is fitted.

[0055] The support piece 46c is provided in a generally flat plate shape extending in the vertical direction. Meanwhile, the first hinge bearing portion 40 is provided with a slit portion 48 into which the support piece 46c is inserted.

[0056] Therefore, the second biasing member 46 is attached integrally with the locking member 38 with the fitting protrusion 46d fitted into the fitting hole 47 and the support piece 46c inserted into the slit 48. The second biasing member 46 is also attached rotatably together with the locking member 38 via the second hinge portion 37 with the hinge shaft 43 passing through the shaft hole 46b in the rotation shaft direction.

[0057] As a result, when the second arm portion 38b side of the locking member 38 is pressed, the second biasing member 46 biases the locking member 38 toward the locked position in the rotation direction by compressing the elastic deformation portion 46a between the second arm portion 38b and the peripheral wall portion 7a.

[0058] The lid lock mechanism 36 has a cover member 49 made of metal, for example stainless steel, which is placed over the lock member 38. The cover member 49 has a cover body 49a which covers the lock member 38, and a pair of support arms 49c which protrude from the cover body 49a so as to be positioned on both sides of the first hinge bearing portion 40, and which are provided with a shaft hole 49b through which the hinge shaft 43 passes. The plate thickness of the cover member 49 is preferably about 0.2 to 1.0 mm.

[0059] In addition, the cover member 49 has a fixing mechanism for fixing the cover member 49 to the first hinge bearing portion 40 by a pair of support arms 49c, which includes locking protrusions 49d protruding in the vertical direction from the tips of the pair of support arms 49c, and locking recesses 40b on both sides of the first hinge bearing portion 40 to which the locking protrusions 49d are engaged.

[0060] Therefore, the cover member 49 is attached integrally with the locking member 38 with the cover body 49a covering the front side of the locking member 38 and with the locking protrusions 49d of the pair of support arms 49c locked in the locking recesses 40b of the first hinge bearing portion 40. The cover member 49 is also attached rotatably together with the locking member 38 via the second hinge portion 37 with the hinge shaft 43 passing through the shaft hole 49b in the rotation shaft direction.

[0061] As a result, the cover member 49, in a state in which it covers the lock member 38, is rotated together with the lock member 38 between the locked position and the unlocked position.

[0062] The ring stopper 39 is made of a partially open ring-shaped member, has shaft holes 39a at both ends through which the hinge shaft 43 passes, and is rotatably supported on the outside of the second hinge portion 37 (second and third hinge bearing portions 41, 42). This allows the ring stopper 39 to rotate up and down.

[0063] Meanwhile, a stopper receiving portion 50 for hooking and fastening the ring stopper 39 is provided on the front side surface (peripheral wall portion 9a) of the lid body 9. The stopper receiving portion 50 has a shape corresponding to the inside of the ring stopper 39, and is provided protruding forward from a position surrounding the periphery of the hook receiving portion 45.

[0064] In the lid lock mechanism 36, when the lid 9 closes the upper part of the cap body 7, the hook portion 44 of the locking member 38 is engaged with the hook receiving portion 45, thereby maintaining the lid 9 in a state in which the lid 9 closes the upper part of the cap body 7 (hereinafter referred to as the "locked state"). From this locked state, the hook portion 44 is released from the hook receiving portion 45 by pressing the second arm portion 38b side of the locking member 38. This makes it possible to rotate the lid 9 in the opening direction by the biasing force of the first biasing member 26.

[0065] On the other hand, in the lid lock mechanism 36, when the lid 9 closes the upper part of the cap body 7, the ring stopper 39 is hooked onto the stopper receiving portion 50, thereby preventing the lid 9 from rotating in the opening direction. This makes it possible for the lid lock mechanism 36 to prevent the lid 9 from being opened by unnecessary operation of the locking member 38.

[0066] The cover member 49 is not necessarily limited to the fixing mechanism in which the locking protrusions 49d are locked in the locking recesses 40b described above. For example, the fixing mechanism of the cover member 49 may have a pair of bent pieces 49e formed by bending the tips of a pair of support arms 49c in directions facing each other, as shown in Fig. 16, and the first hinge bearing portion 40 may be sandwiched between the pair of bent pieces 49e.

[0067] In addition, the fixing mechanism for the cover member 49 may be configured to have locking pieces 49f formed by cutting out parts of a pair of support arms 49c, as shown in Figure 17, and to lock these pair of locking pieces 49f into locking receiving portions 40c provided on the first hinge bearing portion 40.

[0068] In addition, in the cover member 49, as shown in FIG. 18, the axial holes 49b provided in the pair of support arms 49c may be formed into an elongated hole shape, and a protrusion 40d provided on the first hinge bearing portion 40 may be engaged with this axial hole 49b, thereby preventing the cover member 49 from shifting in position relative to the first hinge bearing portion 40 (locking member 38).

[0069] In this embodiment, the cover member 49 is configured to be freely rotatably attached together with the locking member 38 via the second hinge portion 37, with the hinge shaft 43 passing through the shaft hole 49b in the direction of the rotation axis. However, the second hinge portion 37 only needs to function as a hinge, and is not necessarily limited to a configuration in which the hinge shaft 43 passes through.

[0070] Furthermore, the cover member 49 may be configured to be attached to the second hinge portion 37 integrally with the lock member 38 so as to be freely rotatable therewith, and may be configured, for example, so that the cover member 49 is attached integrally with the lock member 38 by the above-mentioned fixing mechanism.

[0071] In addition, in this embodiment, the second hinge portion 37 is configured to include a first hinge bearing portion 40 provided on the locking member 38, and a second hinge bearing portion 41 and a third hinge bearing portion 42 provided on the cap body 7, but it is also possible to configure the locking member 38 side and the cap body 7 side in an interchangeable manner.

[0072] That is, a configuration may be adopted in which a first hinge bearing portion is provided on the cap body 7 side, and a second hinge bearing portion and a third hinge bearing portion are provided on the locking member 38 side. In the case of this configuration, a pair of support arms 49c of the cover member 49 protrude from the cover body 49a so as to be positioned on both sides of the second hinge bearing portion and the third hinge bearing portion provided on the locking member 38, and the cover member 49 is fixed to the second hinge bearing portion and the third hinge bearing portion by the hinge shaft 43 or a fixing mechanism.

[0073] Incidentally, the first hinge portion 8 is provided with a rotation damper mechanism 51 that damps the rotation speed of the cover body 9 rotated by the biasing force of the first biasing member 26, as shown in FIGS.

[0074] Specifically, the first biasing member 26 is a torsion spring and has a winding portion 26a wound in a coil shape, one arm portion 26b extending from one end side of the winding portion 26a, and the other arm portion 26c extending from the other end side of the winding portion 26a.

[0075] The first hinge portion 8 has a first hinge bearing portion 52 provided on either the cap body 7 or the lid body 9 (cap body 7 in this embodiment), a second hinge bearing portion 53 and a third hinge bearing portion 54 provided on the other of the cap body 7 or the lid body 9 (lid body 9 in this embodiment), and a hinge axis 55 attached in a state where it penetrates shaft holes 52a, 53a, 54a provided in the first, second and third hinge bearing portions 52, 53 and 54 in the rotation axis direction, with the first hinge bearing portion 52 positioned between the second hinge bearing portion 53 and the third hinge bearing portion 54.

[0076] The first hinge bearing portion 52 is formed in a substantially cylindrical shape having an axis hole 52a penetrating therethrough in the direction of the rotation axis, and is provided so as to protrude from the rear center portion of the cap body .

[0077] The second hinge bearing portion 53 has an axial hole 53a penetrating in the rotation axis direction and is arranged to protrude from one side of the rear central portion of the cover body 9 so as to have a shape continuous with the first hinge bearing portion 52.

[0078] The third hinge bearing portion 54 has an axial hole 54a penetrating in the rotation axis direction and is arranged to protrude from the other side across the rear central portion of the cover body 9 so as to have a shape continuous with the first hinge bearing portion 52.

[0079] The first hinge bearing portion 52 is provided with an accommodating recess 52b that is recessed into a substantially cylindrical shape in the rotation axis direction on the surface side facing the third hinge bearing portion 54. The first hinge bearing portion 52 is also provided with one arm receiving portion 52c that is recessed into a shape corresponding to the shape of one arm portion 26b of the first biasing member 26 on the surface side facing the third hinge bearing portion 54.

[0080] The first biasing member 26 is disposed inside the first hinge bearing portion 52 with the wound portion 26a accommodated inside the accommodation recess 52b and one arm portion 26b engaged with one arm receiving portion 52c.

[0081] On the other hand, the third hinge bearing portion 54 is provided with a facing member 56 that constitutes a surface facing the first hinge bearing portion 52. The facing member 56 has an axis hole 56a through which the hinge axis 55 passes, and is attached in a state of being fitted inside a fitting recess 54b provided in the third hinge bearing portion 54.

[0082] In addition, the surface of the facing member 56 facing the first hinge bearing portion 52 is provided with an engaging convex portion 56b that protrudes in accordance with the shape of the accommodating recess 52b, and the other arm receiving portion 56c that is recessed in accordance with the shape of the other arm portion 26c of the first biasing member 26.

[0083] The facing member 56 is arranged to be freely rotatable together with the third hinge bearing portion 54 with the mating protrusion 56b mated with the accommodating recess 52b and the other arm portion 26c of the first biasing member 26 engaged with the other arm receiving portion 56c.

[0084] As a result, when the lid body 9 is rotated from a position where the lid body 9 opens the liquid passage port 13 (hereinafter referred to as the open position) toward the opposite side to the opening direction (hereinafter referred to as the closing direction), the first biasing member 26 elastically deforms in a direction narrowing the opening angle between one arm portion 26b and the other arm portion 26c, and uses its repulsive force to bias the lid body 9 toward the opening direction against the cap body 7.

[0085] In addition, the opposing member 56 can be preferably made of a material different from that of the first hinge bearing portion 52 (cap body 7), such as a material with excellent wear resistance, such as polyacetal (POM) or acrylonitrile butadiene styrene (ABS).

[0086] In the first hinge portion 8, it is possible to improve durability by providing such a facing member 56 having excellent abrasion resistance separately from the third hinge bearing portion 54. Note that the facing member 56 is not necessarily limited to a configuration in which it is provided separately from the third hinge bearing portion 54, and may be a configuration in which it is integrated with the third hinge bearing portion 54.

[0087] The rotation damper mechanism 51 is provided between the first hinge bearing portion 52 and the second hinge bearing portion 53. Specifically, the rotation damper mechanism 51 has a first gear 57 attached to the first hinge bearing portion 52, a second gear 58 meshed with the first gear 57, a rotary damper 59 that rotatably supports the second gear 58 and applies resistance to the rotation of the second gear 58, and a damper case 60 that rotates integrally with the cover body 9 while holding the rotary damper 59.

[0088] The damper case 60 houses the first gear 57, the second gear 58, and the rotary damper 59 inside, making these components invisible from the outside. In the cap unit 1 of this embodiment, the first biasing member 26 and the rotary damper mechanism 51 are efficiently arranged within the limited space inside the first hinge portion 8 and the lid body 9.

[0089] The first and second gears 57, 58 can be preferably made of a material having excellent wear resistance, such as polyacetal (POM) or acrylonitrile butadiene styrene (ABS).

[0090] The damper case 60 can be preferably made of a material with excellent dimensional formability, such as polycarbonate (PC) or acrylonitrile butadiene styrene (ABS).

[0091] The first gear 57 has an axis hole 57a through which the hinge axis 55 passes, and a fixed axis 57b protruding from a surface facing the first hinge bearing portion 52. The first gear 57 is attached integrally with the first hinge bearing portion 52 with the fixed axis 57b fitted in a fixed hole 52d provided in a surface of the first hinge bearing portion 52 facing the second hinge bearing portion 53.

[0092] The second gear 58 is located forward of the first gear 57 and is rotatably supported by a rotary damper 59 so as to mesh with the first gear 57. The rotary damper 59 uses the viscous resistance of the oil filled inside to apply resistance to the rotation of the second gear 58 and reduce the rotation speed.

[0093] The damper case 60 has an axis hole 60a through which the hinge axis 55 passes and a locking claw 60b that locks into a locking hole 9d provided on the inside of the cover body 9 shown in Figure 7, and is arranged so as to be freely rotatable together with the second hinge bearing portion 53.

[0094] The damper case 60 is provided with a first recess 60c, which is recessed on the surface side facing the second hinge bearing portion 53 to correspond to the second gear 58 and the rotary damper 59, and a second recess 60d, which is recessed on the surface side facing the first hinge bearing portion 52 to correspond to the first gear 57. The first recess 60c and the second recess 60d are communicated at a position where they overlap with each other.

[0095] The first gear 57 and the second gear 58 are meshed with each other through the first recess 60c and the second recess 60d. The rotary damper 59 has fixing holes 59a and fixing grooves 59b through which a pair of fixing pins 60e provided inside the first recess 60c pass, and is fitted inside the first recess 60c.

[0096] As a result, in the rotation damper mechanism 51, when the locked state of the lid body 9 by the above-mentioned lid locking mechanism 36 is released, it is possible to reduce the rotation speed of the lid body 9 which is rotated from the closed position to the open position by the biasing force of the first biasing member 26.

[0097] Specifically, in the rotation damper mechanism 51, when the cover body 9 is rotated from the closed position to the open position by the bias of the first biasing member 26, the damper case 60 is rotated together with the cover body 9.

[0098] At this time, as the second gear 58 meshed with the first gear 57 rotates, the rotary damper 59 applies resistance to the rotation of the second gear 58, thereby reducing the rotation speed of the second gear 58. As a result, the rotation speed of the lid body 9 rotated toward the open position is kept low by the resistance of the rotary damper 59.

[0099] Therefore, in the cap unit 1 of this embodiment, even if the pressure inside the container body 2 is rising, for example when hot water is poured into the container body 2, it is possible to release the locked state of the lid body 9 and prevent the lid body 9 from being forcefully rotated toward the open position due to the momentum generated when the pressure inside the container body 2 is released.

[0100] In the first hinge portion 8, the first hinge bearing portion 52 is provided on the cap body 7 side, and the second hinge bearing portion 53 and the third hinge bearing portion 54 are provided on the lid body 9 side, but the present invention is not limited to this configuration, and the first hinge bearing portion 52 may be provided on the lid body 9 side, and the second hinge bearing portion 53 and the third hinge bearing portion 54 may be provided on the cap body 7 side. In addition, in the first hinge portion 8, the configuration on the second hinge bearing portion 53 side and the configuration on the third hinge bearing portion 54 side may be interchanged.

[0101] 29, the damper case 60 may be configured to be integral with the cap body 7 while holding the rotary damper 59. In this configuration, a first gear 57 is attached to the second hinge bearing portion 53, and the damper case 60 holding the rotary damper 59 and a second gear 58 meshing with the first gear 57 is configured to be integral with the first hinge bearing portion 52.

[0102] As described above, in the cap unit 1 of this embodiment, in the above-mentioned lid lock mechanism 36, the second biasing member 46 is rotatably attached via the second hinge portion 37. This allows the lid lock mechanism 36 to stably dispose the second biasing member 46 between the second arm portion 38b of the lock member 38 and the peripheral wall portion 7a of the cap body 7 without it falling off. In addition, it does not fall off during assembly, making assembly easy. Furthermore, it will not fall off even if an external force is applied after assembly.

[0103] Furthermore, in the lid lock mechanism 36, with the above-mentioned second biasing member 46 attached integrally with the lock member 38, the second biasing member 46 can be rotatably attached to the second hinge portion 37 together with the lock member 38. This makes it possible in the lid lock mechanism 36 to easily and stably dispose the second biasing member 46 between the second arm portion 38b of the lock member 38 and the peripheral wall portion 7a of the cap body 7.

[0104] Furthermore, in the lid lock mechanism 36, a second biasing member 46 is disposed so as to fill the gap formed between the second arm portion 38b of the lock member 38 and the peripheral wall portion 7a of the cap body 7. This makes it possible to prevent water, dust, and the like from entering and remaining in such a gap during cleaning, which is hygienic.

[0105] Furthermore, since the second urging member 46 is made of the elastic member described above, it can be molded in a colored state, and is easier to color than a metal spring member, with a wider range of color options available. Therefore, if the second urging member 46 is colored the same as the cap body 7 or the lock member 38, it is possible to make the second urging member 46 less noticeable in appearance. On the other hand, if the second urging member 46 is colored a different color, it is possible to add an accent to the design in appearance.

[0106] Furthermore, in the lid locking mechanism 36, a metal cover member 49 that covers the above-mentioned locking member 38 is rotatably attached via the second hinge portion 37. As a result, in the lid locking mechanism 36, the cover member 49 protects the locking member 38, and it is possible to increase the support strength of the locking member 38 when it is rotatably supported by the second hinge portion 37.

[0107] Therefore, in the lid lock mechanism 36, by covering the lock member 38 with a metal cover member 49, it is possible to make the lock member 38 smaller and thinner to a size that would previously have been broken due to insufficient strength. In addition, the appearance of the lock member 38, which is usually made of resin, can be made to have a metallic texture, and flow marks caused by molding can also be covered. This not only improves the appearance of the lock member 38, but also makes it possible to achieve both durability and design of the lock member 38.

[0108] If the locking member 38 is made of metal instead of the metal cover member 49, the metal hook portion 44 will be in sliding contact with the resin hook receiving portion 45. In this case, depending on the material of the cover body 9, the weak hook receiving portion 45 may wear out due to repeated use. Furthermore, making the locking member 38 out of metal not only increases the cost of processing and materials due to its complex shape, but also increases the weight of the locking member 38. In contrast, the cover member 49 has a thin plate thickness, so it can be manufactured inexpensively by sheet metal pressing or the like, without relying on casting or machining.

[0109] As described above, in the cap unit 1 of this embodiment, it is possible to obtain a lid locking mechanism 36 that is highly functional and has an excellent design.

[0110] Furthermore, in the cap unit 1 of this embodiment, a rotation damper mechanism 51 is provided that attenuates the rotation speed of the lid body 9 rotated by the force of the first biasing member 26 described above, so that it is possible to prevent the lid body 9 from being forcefully rotated in the opening direction when the locked state of the lid body 9 by the lid locking mechanism 36 is released.

[0111] As a result, in the cap unit 1 of this embodiment, when the lid body 9 is rotated in the opening direction, it is possible to prevent the beverage or condensed water droplets adhering to the inside of the lid body 9 (particularly the lid packing 27) from scattering to the outside. In addition, it is possible to prevent the lid body 9 from being rotated in the closing direction due to the reaction force generated when the lid body 9 bounces back after being rotated forcefully in the opening direction. Furthermore, since the lid body 9 is rotated in the opening direction at a substantially constant speed, it is comfortable to use.

[0112] Furthermore, in the cap unit 1 of this embodiment, it is possible to reduce wear that occurs between the first hinge bearing portion 52 and the second hinge bearing portion 53 and between the first hinge bearing portion 52 and the third hinge bearing portion 54, thereby improving the durability of the first hinge portion 8.

[0113] In the cap unit 1 of this embodiment, the first gear 57, the second gear 58, and the rotary damper 59 are all disposed inside the damper case 60, so that they cannot be seen from the outside, and a good aesthetic appearance can be provided. In addition, it is possible to prevent deterioration of the damper function due to small particles of dust or the like getting into the meshing portion between the first gear 57 and the second gear 58.

[0114] Therefore, by providing such a cap unit 1 in the capped container 100 of this embodiment, it is possible to further improve usability.

[0115] 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 the application of the present invention to a beverage container having a heat / cold insulation function provided by the container body 2 having the above-mentioned vacuum insulation structure, but the present invention can be widely applied to a capped container having a container body and a cap unit that can be freely attached and detached to the container body. [Explanation of symbols]

[0116] REFERENCE SIGNS LIST 1...cap unit 2...container body 7...cap body 8...first hinge portion 9...lid body 12...mouth forming member 13...liquid passage port 14...mouth detachment mechanism 25...water stop gasket 26...first biasing member 27...lid gasket 28...cap member 36...lid lock mechanism 37...second hinge portion 38...locking member 39...ring stopper 40...first hinge bearing portion 41...second hinge bearing portion 42...third hinge bearing portion 43...hinge shaft 46...second biasing member 49...cover member 51...rotation damper mechanism 52...first hinge bearing portion 53...second hinge bearing portion 54...third hinge bearing portion 55...hinge shaft 56...facing member 57...first gear 58...Second gear 59...Rotary damper 60...Damper case

Claims

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 liquid passage hole that communicates with the inside of the container body; a cover body that is rotatably attached to the cap body via a first hinge portion and opens and closes the liquid passage port in a state where the cover body is biased in a direction to open the liquid passage port by a first biasing member provided on the first hinge portion; a lid lock mechanism that fixes the lid at a position where the lid closes the liquid passage hole against the bias of the first biasing member, the lid lock mechanism includes a locking member that is rotatably attached to the cap body via a second hinge portion and that is rotatable between a locked position where one locking portion provided on one end side is locked with the other locking portion provided on the lid body side and an unlocked position where the locked state between the one locking portion and the other locking portion is released; a metal cover member that covers the lock member, the second hinge portion includes a first hinge bearing portion provided on either the locking member or the cap body, a second hinge bearing portion and a third hinge bearing portion provided on the other of the locking member or the cap body, and a hinge shaft attached in a state in which the hinge shaft penetrates shaft holes provided in the first, second and third hinge bearing portions in a rotation axis direction with the first hinge bearing portion positioned between the second hinge bearing portion and the third hinge bearing portion; The cover member has a cover main body that covers the locking member, and a pair of support arms that protrude from the cover main body and have an axial hole through which the hinge shaft passes in the direction of the rotation axis, and the pair of support arms are attached integrally with the locking member via a fixing mechanism, thereby being attached freely rotatable together with the locking member.

2. The pair of support arms protrude from the cover body so as to be positioned on both sides of the first hinge bearing portion provided on the locking member, The cap unit according to claim 1 , wherein the fixing mechanism fixes the pair of support arms to the first hinge bearing portion.

3. The pair of support arms protrude from the cover body so as to be positioned on both sides of the second hinge bearing portion and the third hinge bearing portion provided on the locking member, 2. The cap unit according to claim 1, wherein the fixing mechanism fixes the pair of support arms to the second hinge bearing portion and the third hinge bearing portion.

4. 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.

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